Patent Publication Number: US-2023163542-A1

Title: Adapter and rail socket

Description:
CROSS-REFERENCE TO RELATED APPLICATION 
     This application is a US national stage of international application No. PCT/CN2021/082467, filed on Mar. 23, 2021, which claims priorities to the Chinese Patent Application No. 202010839080.5, filed on Aug. 19, 2020 and entitled “ADAPTER AND RAIL SOCKET”, the Chinese Utility Model Patent Application No. 202021744535.7, filed on Aug. 19, 2020 and entitled “ADAPTER AND RAIL SOCKET”, the Chinese Patent Application No. 202010712396.8, filed on Jul. 22, 2020 and entitled “ELECTRIFIED GUIDE RAIL AND RAIL SOCKET”, and Chinese Utility Model Patent Application No. 202021463345.8, filed on Jul. 22, 2020 and entitled “ELECTRIFIED GUIDE RAIL AND RAIL SOCKET”, the disclosures of which are herein incorporated by reference in their entireties. 
    
    
     TECHNICAL FIELD 
     The present disclosure relates to the field of electrical devices, in particular to an adapter and a rail socket. 
     BACKGROUND 
     The rail socket is a mobile socket and includes an electrified guide rail and an adapter. The adapter can be assembled at different positions of the electrified guide rail to take power. 
     SUMMARY 
     In one aspect, the embodiment of the present disclosure provides an adapter. The adapter includes a socket portion and a power-taking portion, wherein the power-taking portion is connected to a bottom of the socket portion, and the power-taking portion is configured to enter the electrified guide rail to take power; 
     the socket portion includes a socket portion body, a fixed support, an unlocking member and a locking member; 
     the fixed support is disposed at a bottom of the socket portion body; 
     the locking member runs through the fixed support, and the locking member is configured to be limited within the electrified guide rail in a locked state and to be released from the electrified guide rail in an unlocked state; and 
     the unlocking member is connected to the fixed support, and the unlocking member is configured to enable the locking member to be switched between the locked state and the unlocked state. 
     In another aspect, the embodiment of the present disclosure further provides a rail socket. The rail socket includes an electrified guide rail and any one of the above adapters; 
     a top and an inside of the electrified guide rail respectively have an opening and an accommodating cavity which extend along a length direction of the electrified guide rail; and 
     the power-taking portion of the adapter is capable of being assembled into the accommodating cavity through the opening, and capable of rotating to a power-taking position in the accommodating cavity to take power. 
    
    
     DETAILED DESCRIPTION 
     For clearer descriptions of the objectives, technical solutions, and advantages of the present disclosure, embodiments of the present disclosure are described in detail hereinafter with reference to the accompanying drawings. 
     In the related art, the adapter includes a socket portion and a power-taking portion connected to a bottom of the socket portion. The socket portion includes a socket portion body and a fixed support. The fixed support is disposed at a bottom of the socket portion body and cannot rotate relative to the electrified guide rail. During application, the power-taking portion enters the electrified guide rail, and the socket portion body is rotated to drive the power-taking portion to rotate from an assembly position to a power-taking position. 
     However, in a non-power-taking state, for example, at the assembly position, the adapter is easily driven by an external force to be released from the electrified guide rail. 
     Embodiments of the present disclosure provide an adapter and a rail socket, which can be configured for solving the problem that the adapter easily falls off from the electrified guide rail. The technical solution is as follows. 
     A rail socket is a mobile socket and includes an adapter and an electrified guide rail. The electrified guide rail is used for supplying power and the adapter is used for taking power. The adapter is assembled into the electrified guide rail and may slide along the electrified guide rail to take power at any power-taking position of the electrified guide rail. When an external electrical device and the adapter are electrically connected in a plug-in manner and the like, the electrified guide rail, the adapter and the external electrical device form a conductive path to realize the power supply from the electrified guide rail to the external electrical device. Since the adapter in the rail socket is movable, the power-taking manner in which the external electrical device is connected to the adapter is more flexible. 
     In the related art, the adapter includes a socket portion and a power-taking portion connected to a bottom of the socket portion. The socket portion includes a socket portion body and a fixed support. The fixed support is disposed at the bottom of the socket portion body and cannot rotate relative to the electrified guide rail. During application, the power-taking portion enters the electrified guide rail, and the socket portion body is rotated to drive the power-taking portion to rotate from an assembly position to the power-taking position. 
     The power-taking portion may freely enter and exit the electrified guide rail when at the assembly position, so that the adapter is easily driven by an external force in a non-power-taking state and separated from the electrified guide rail. That is to say, the adapter is apt to fall off from the electrified guide rail, such that not only is the adapter easily damaged, but also the user experience is poor. 
     The embodiment of the present disclosure provides an adapter. As shown in  FIG.  1   , the adapter includes a socket portion  1  and a power-taking portion  2 . The power-taking portion  2  is connected to a bottom of the socket portion  1 , and the power-taking portion  2  is configured to enter the electrified guide rail  3  for taking power. 
     The socket portion  1  includes a socket portion body  11 , a fixed support  12 , an unlocking member  14  and a locking member  13 . The fixed support  12  is disposed at a bottom of the socket portion body  11  (the fixed support  12  cannot rotate relative to the electrified guide rail  3 , while the socket portion body  11  can rotate relative to the electrified guide rail  3 ). The locking member  13  runs through the fixed support  12 , and the locking member  13  is configured to be limited inside the electrified guide rail  3  in a locked state, and to freely enter and exit an opening  301  of the electrified guide rail  3  in an unlocked state. The unlocking member  14  is connected to the fixed support  12 , and the unlocking member  14  is configured to switch the locking member  13  between the locked state and the unlocked state. 
     According to the embodiment of the present disclosure, the adapter is plugged into the electrified guide rail  3 , so that the power-taking portion  2  enters the electrified guide rail  3  from the assembly position where the power-taking portion  2  enters and exits the electrified guide rail  3 . The power-taking portion  2  is rotated such that it may be rotated to the power-taking position in the electrified guide rail  3 . Since the adapter includes the locking member  13  and the unlocking member  14  the locking member  13  can be switched between the locked state and the unlocked state by an operation to the unlocking member  14 . When being in the locked state, the locking member  13  is limited inside the electrified guide rail  3  (reference may be made to the drawing number (C) in  FIG.  1    for the locked state). In this way, the adapter will not fall off from the electrified guide rail  3 , so that the adapter is locked inside the electrified guide rail. When the adapter needs to be plugged into and unplugged from the electrified guide rail  3 , the unlocking member  14  is operated to switch the locking member  13  from the locked state to the unlocked state (reference may be made to the drawing number (B) in  FIG.  1    for the unlocked state). In this way, the locking member  13  is released from the electrified guide rail  3  and can freely enter and exit the opening  301  of the electrified guide rail  3 , so that the adapter can be plugged and unplugged smoothly. 
     The locking member  13  may be switched between the locked state and the unlocked state in a manner of rotation or linear movement, which are respectively described below by examples. 
     (1) In some optional implementations, the embodiment of the present disclosure provides a locking member  13  that may be switched between a locked state and a unlocked state by rotating. As shown in  FIG.  2    and  FIG.  3   , the locking member  13  includes a rotating portion  131 , a connecting portion  132  and a first locking portion  133 . The rotating portion  131  runs through the fixed support  12 , and the rotating portion  131  may rotate. A first end of the connecting portion  132  is connected to a first end of the rotating portion  131  disposed above the fixed support  12 , and a second end of the connecting portion  132  is connected to an unlocking member  14 . The first locking portion  133  is connected to a second end of the rotating portion  131  disposed below the fixed support  12 , and the first locking portion  133  is switched between the locked state and the unlocked state by rotating. 
     For example, the rotating portion  131  is a cylinder or a prism (the cylinder is more favorable for simplifying a preparing process). The fixed support  12  is provided with a via hole at a position corresponding to the locking member  13 , and the rotating portion  131  passes through the via hole. Moreover, the rotating portion  131  has a first part disposed above the fixed support  12  (that is, a direction away from the electrified guide rail  3 ) and a second part disposed below the fixed support  12 . The rotating portion  131  may rotate in the via hole. Exemplarily, the rotating portion  131  is in clearance fit with the via hole, and central axes of the rotating portion and the via hole coincide, which facilitates the stable rotation of the rotating portion  131  around the central axis thereof. 
     The connecting portion  132  and the unlocking member  14  are both disposed above the fixed support  12  to effectively utilize an internal space of the adapter. The first end of the connecting portion  132  is connected to the first end of the rotating portion  131  disposed above the fixed support  12 . The second end of the connecting portion  132  is connected to the unlocking member  14 . The first locking portion  133  is connected to the second end of the rotating portion  131  disposed below the fixed support  12 . In this way, when the unlocking member  14  is operated to act on the connecting portion  132 , the connecting portion  132  may transmit the action to the rotating portion  131  to enable the same to rotate. Then the rotating portion  131  that is rotated drives the first locking portion  133  to rotate, thereby causing the first locking portion  133  to be switched between the locked state and the unlocked state. 
     The structure of the connecting portion  132  is adaptively designed according to the structures of the unlocking member  14  and the rotating portion  131 , as long as the above connection can be ensured. For example, the first end of the connecting portion  132  connected to the rotating portion  131  is a sleeve-like structure. In this way, the connection can be realized by sleeving the connecting portion  132  on an outside of the first end of the connecting portion  132 . The second end of the connecting portion  132  connected to the unlocking member  14  may be in a shape of a circular arc block, a rectangular block, or an angular block. Besides, the connection mode between the second end of the connecting portion  132  and the unlocking member  14  includes a fixed connection or a non-fixed connection (for example, in contact only). For example, the connection mode between the connecting portion  132  and the unlocking member  14  is a contact connection, a clamping connection, a magnetic connection, etc. 
     In some optional implementations, as shown in  FIG.  4    or  FIG.  5   , the first locking portion  133  includes a locking portion body  1331  and a locking block  1332 . The locking portion body  1331  is connected to the second end of the rotating portion  131 . The locking block  1332  is connected to a side wall of the locking portion body  1331 , and the locking block  1332  is stopped by an inner surface of a top wall of the electrified guide rail  3  disposed on both sides of the opening  301  in the locked state. In other words, the locking block  1332  and the inner surface of the top wall of the electrified guide rail  3  disposed at the side part of the opening  301  block each other to achieve the locking. 
     Further, as shown in  FIG.  4   , the first locking portion  133  includes two locking blocks  1332 , and the two locking blocks  1332  are connected to opposite side walls of the locking portion body  1331 , that is, the two locking blocks  1332  are respectively disposed on both sides of the locking portion body  1331 . In this way, the two locking blocks  1332  and the inner surface of the top wall of the electrified guide rail  3  disposed on both sides of the opening  301  can block each other, which is beneficial to improve the limiting effect. 
     In the embodiment of the present disclosure, the connection mode between the locking portion body  1331  and the second end of the rotating portion  131  includes but not limited to: integrally formed connection, threaded connection, clamping connection, etc. 
     The locking block  1332  and the locking portion body  1331  are of the integrally formed connection to acquire a sufficient connection strength. The structure of the locking block  1332  includes but not limited to: a rectangular block shape, an arc block shape, an angular block shape, and some irregular blocks with irregular geometric shapes. 
     In some optional implementations, as shown in  FIG.  4   , an end part of the locking block  1332  away from the locking portion body  1331  has a guiding surface  1333 . The guiding surface  1333  is configured to act on the inner wall of the opening  301  by contact when the first locking portion  133  enters the opening  301  of the electrified guide rail  3 , so that the first locking portion  133  is rotated from the locked state to the unlocked state. 
     The guiding surface  1333  is opposite to the inner wall of the opening  301  of the electrified guide rail  3 . Besides, the structure of the guiding surface  1333  meets the following requirements: once the locking block  1332  in the locked state is in contact with the inner wall of the opening  301  of the electrified guide rail  3 , the inner wall of the opening  301  of the electrified guide rail  3  presses the locking block  1332  based on the contact action, so that the first locking portion  133  can rotate and smoothly enter the opening  301 . In the process of entering the opening  301 , the locking block  1332  is always pressed by the inner wall of the opening  301 , so that the first locking portion  133  continues to rotate until the first locking portion  133  is rotated to the unlocked state (referring to the state shown in  FIG.  6   , at this time, the unlocking member  14  is not operated, and only the locking member  13  is automatically rotated to the unlocked state). 
     For example, the guiding surface  1333  is an inclined surface or an arc surface, and an inclination direction of the inclined surface or a radian direction of the arc surface is a rotation direction of the locking block  1332  to guide the locking block  1332  to rotate. 
     It can be seen that according to the embodiment of the present disclosure, the guiding surface  1333  is disposed at the end part of the locking block  1332 . When the first locking portion  133  enters the opening  301  of the electrified guide rail  3 , the guiding surface  1333  acts on the inner wall of the opening  301  by contact, so as to drive the first locking portion  133  to rotate. Therefore, the first locking portion  133  is automatically rotated from the locked state to the unlocked state (referring to the process shown in  FIG.  7   ), which is beneficial to improve the user experience. In other words, when the adapter is plugged into the electrified guide rail  3 , it is not necessary to operate the unlocking member  14 . That is, without other additional actions, the first locking portion  133  can be automatically rotated to the unlocked state, so that the adapter can be plugged smoothly, and meanwhile, a better plugging hand feeling can be acquired. 
     For the above implementation (1), the unlocking member  14  is adaptively designed according to the structure of the locking member  13 , as long as when the unlocking member  14  is operated, the locking member  13  can be driven to rotate. The structure of the unlocking member is  14  is described exemplarily hereinafter. 
     In some optional implementations, as shown in  FIG.  8   , the unlocking member  14  includes a first operating portion  141  and a first transmission portion  142 . The first operating portion  141  is movably connected to the side wall of the fixed support  12 . A first end of the first transmission portion  142  is connected to the first operating portion  141 , and a second end of the first transmission portion  142  is connected to the connecting portion  132 . 
     By an operation, for example, by pressing the first operating portion  141 , the first transmission portion  142  transmits a force to the connecting portion  132  of the locking member  13 , so as to drive the connecting portion  132  to rotate. The connecting portion  132  that is rotated simultaneously drives the first locking portion  133  to rotate, so that the first locking portion  133  is switched from the locked state to the unlocked state. 
     An operation mode of the first operating portion  141  includes but not limited to: a pressing mode, a toggle mode, etc., which are respectively described by examples below. 
     As an example, the first operating portion  141  is a button, which is operated by the pressing mode. The side wall of the fixed support  12  is provided with an opening or a slot for accommodating the first operating portion  141  of such a button structure. The first operating portion  141  may be movably disposed inside the opening or slot by pressing. 
     In the embodiment of the present disclosure, a corresponding opening is also disposed in the side wall of a housing of the adapter to accommodate the first operating portion  141  of the button structure, so that the first operating portion  141  can be pressed. The first operating portion  141  is disposed at a position where the thumb of a user is most suitable for pressing, so as to conform to ergonomics and unlock the adapter in the most comfortable state. Therefore, the unlocking process is simple and smooth. 
     A detachable connection mode is adopted between the first operating portion  141  and the first transmission portion  142  to facilitate assembly. For example, the detachable connection mode is a threaded connection, a clamping connection, and the like. 
     Taking the clamping connection as an example, as shown in  FIG.  8   , the first operating portion  141  includes a button section  1411  and a first connecting section  1412  which are sequentially connected. An outer diameter of the first connecting section  1412  is less than an outer diameter of the button section  1411  to form a limiting step  1413  at a connecting position between the first connecting section  1412  and the button section  1411 . The first connecting section  1412  is of an elastic structure that extends and retracts in a radial direction. For example, the first connecting section  1412  is sleeve-shaped, and the side wall where the first connecting section  1412  is disposed is provided with a plurality of strip-shaped holes which extend axially and are arranged along the circumferential direction, so that the first connecting section  1412  of the first operating portion  141  extends and retracts in the radial direction. A clamping block  1414  is disposed on an outer side of the side wall of a free end of the first connecting section  1412  away from the button section  1411 . Correspondingly, the part of the first transmission portion  142  connected to the first operating portion  141  has a clamping hole. During application, the first connecting section  1412  of the first operating portion  141  is plugged into the clamping hole. Under the press of the inner wall of the clamping hole or a manual press, the first connecting section  1412  is compressed in the radial direction, so that the first connecting section  1412  passes through the clamping hole until a wall of the first transmission portion  142  facing the limiting step  1413  is stopped by the limiting step  1413 . Then, the first connecting section  1412  is no longer pressed, and the first connecting section  1412  is automatically reset based on the elasticity thereof. At this time, a wall of the first transmission portion  142  away from the limiting step  1413  is blocked by the clamping block  1414 , so that the first transmission portion  142  is limited between the limiting step  1413  and the clamping block  1414 . In this way, the first operating portion  141  and the first transmission portion  142  are connected in a clamping manner. 
     In order to improve the stability of the first transmission portion  142 , the first transmission portion  142  may also be connected to the fixed support  12 . For example, a plugging slot is disposed in the fixed support  12 , and the first transmission portion  142  is plugged into the plugging slot. 
     When the first operating portion  141  is a button, and the first transmission portion  142  is configured that it may transmit a pressing action force of the button to the first locking portion  133  when the button is pressed, thereby causing the first locking portion  133  to rotate.  FIG.  9    shows that by pressing the first operating portion  141 , the first operating portion  141  pushes the locking member  13  to rotate, so that the locking member  13  is rotated from the locked state to the unlocked state. 
     For example, as shown in  FIG.  8   , the first transmission portion  142  includes a connecting plate  1421 , two side reinforcing plates  1422 , a bottom plate  1423  and a push plate  1424 . The connecting plate  1421  is along a direction perpendicular to the first operating portion  141 . The two side reinforcing plates  1422  are respectively connected to two opposite side ends of the connecting plate  1421  and extend in the direction away from the first operating portion  141 . The bottom plate  1423  is perpendicularly connected to a bottom end of the connecting plate  1421  and extends along the direction away from the first operating portion  141 . One end of the push plate  1424  is connected to the end part of the bottom plate  1423  away from the connecting plate  1421 , and the other end of the push plate  1424  is connected to the second end of the connecting portion  132  (reference may be made to the description of the above connection mode between the connecting portion  132  and the unlocking member  14  for the specific connection mode). 
     As another example, as shown in  FIG.  10   , the first operating portion  141  is a toggle sheet. For example, as shown in  FIG.  11   , the first operating portion  141  of the toggle sheet structure includes a toggle section  1415  and a second connecting section  1416 . The toggle section  1415  is an arc-shaped sheet structure. A first end of the second connecting section  1416  is connected to an inner side wall of the toggle section  1415 , and a second end of the second connecting section  1416  is connected to the first transmission portion  142 . 
     In the embodiment of the present disclosure, a radian of the arc-shaped sheet toggle section  1415  is adapted to a radian of a circular side wall of the adapter, and the arc-shaped sheet toggle section is operated by toggling clockwise or counterclockwise in the circumferential direction. A corresponding arc-shaped strip hole is disposed in the side wall of the housing of the adapter to provide a movement space for toggling the first operating portion  141 . The toggle section  1415  is attached to the side wall of the housing of the adapter. 
     The outer side wall of the arc-shaped sheet toggle section  1415  is provided with a rough structure, for example, geometric lines, to increase a frictional force with fingers, thereby enabling the toggle operation to be more laborsaving. 
     The second connecting section  1416  is block-shaped. For example, the first end of the second connecting section  1416  and the inner wall of the toggle section  1415  are connected in an integrated manner to improve the connection strength. The second end of the second connecting section  1416  is connected to the first transmission portion  142  in a clamping manner to facilitate assembly. 
     For example, a clamping slot is disposed in a top surface of the second connecting section  1416 , and the first end of the first transmission portion  142  extends into the clamping slot to achieve a clamping connection with the second connecting section  1416 . Further, an arc-shaped slot is disposed in the bottom surface of the second connecting section  1416 , and the arc direction of the arc-shaped slot is the same as a toggle direction of the toggle section  1415 . Correspondingly, an arc-shaped guiding block is disposed on the top of the fixed support and the arc-shaped guiding block is disposed in the arc-shaped slot. In this way, when the toggle section  1415  is toggled, the first operating portion  141  will stably move along a toggle trajectory. 
     When the first operating portion  141  is a toggle sheet, the first transmission portion  142  is configured that when the toggle sheet is toggled, the first transmission portion  142  can transmit a toggle action force of the toggle sheet to the first locking portion  133 , and thus the first locking portion  133  is caused to rotate. 
     For example, the first transmission portion  142  is a rod-shaped structure, the first end of the first transmission portion  142  is connected to the second connecting section  1416  of the first operating portion  141  in a clamping manner, and the second end of the first transmission portion  142  is fixedly connected to the side wall of the connecting portion  132  of the locking member  13 . 
     In some optional implementations, as shown in  FIG.  2   , the top of the fixed support  12  has a stop block  121 . Meanwhile, the unlocking member  14  further includes an elastic portion  143 . The elastic portion  143  is limited between the connecting portion  132  and the stop block  121 . The elastic portion  143  is configured to keep the first locking portion  133  in the locked state. Besides, when an external force acts on the first operating portion  141 , the elastic portion  143  is pressed to be deformed so as to cause the first locking portion  133  to rotate from the locked state to the unlocked state. 
     For example, the elastic portion  143  is a compression spring or a torsion spring. Taking the torsion spring as shown in  FIG.  2    as an example for explanation, a spring body of the torsion spring sleeves on the rotating portion  131  of the locking member  13 , one torsion arm of the torsion spring acts on the connecting portion  132  of the locking member  13  by contact, and the other torsion arm of the torsion spring acts on the stop block  121 , so that the torsion spring is limited between the connecting portion  132  and the stop block  121 . In this way, when the torsion spring is in an initial state, the elastic force thereof can keep the first locking portion  133  in the locked state. When the external force acts on the first operating portion  141  to rotate the connecting portion  132 , the connecting portion  132  presses the torsion arm in contact therewith to deform the torsion arm. A elastic force generated by the deformation may cause the first locking portion  133  to automatically rotate from the locked state to the unlocked state. 
     Taking the compression spring as an example (not shown in the drawing) for explanation, one end of the compression spring is connected to the connecting portion  132 , and the other end of the compression spring is connected to the stop block  121 . In this way, when the compression spring is in the initial state, the elastic force thereof can keep the first locking portion  133  in the locked state. When the external force acts on the first operating portion  141  to rotate the connecting portion  132 , the compression spring is pressed to be deformed by the connecting portion  132 . The elastic force generated by the deformation may cause the first locking portion  133  to be automatically rotated from the locked state to the unlocked state. 
     It can be seen that according to the embodiment of the present disclosure, the elastic portion  143  is disposed for operation. For example, when the first operating portion  141  is pressed, the first transmission portion  142  transmits a pressing force to the connecting portion  132  of the locking member  13 , so as to drive the connecting portion  132  to rotate. The connecting portion  132  that is rotated presses the elastic portion  143 , and drives the first locking portion  133  to rotate simultaneously, so that the first locking portion  133  is switched from the locked state to the unlocked state. When the first operating portion  141  is no longer pressed, the pressed elastic portion  143  is automatically reset, and further drives the rotating portion  131  to reset, so that the first locking portion  133  is automatically reset from the unlocked state to the locked state. 
     Specifically, when the first locking portion  133  is plugged into an accommodating cavity  302  of the electrified guide rail  3  through the opening  301  of the electrified guide rail  3 , and after the first locking portion  133  is unplugged from the accommodating cavity  302  of the electrified guide rail  3  from the opening  301  of the electrified guide rail  3 , the first locking portion  133  can be automatically reset from the unlocked state to the locked state based on the elastic portion  143 . 
     When the unlocking member  14  includes the elastic portion  143 , based on the fact that the locking member  13  can be automatically reset, the connection mode between the connecting portion  132  of the locking member  13  and the unlocking member  14  may be the contact connection. In this way, after the first locking portion  133  is pressed by the inner wall of the opening  301  of the electrified guide rail  3  to automatically rotate to the unlocked state, the first locking portion  133  can be automatically reset from the unlocked state to the locked state based on the existence of the elastic portion  143 . There is no need to rely on operating the first operating portion  141  to reset the first locking portion  133  to be the locked state. 
     (2) In some optional implementations, the embodiment of the present disclosure provides a locking member  13  that can be switched between the locked state and the unlocked state in a manner of extending and retracting movement. As shown in  FIG.  12    and  FIG.  13   , the locking member  13  includes a deforming portion  134  and a second locking portion  135 . The deforming portion  134  runs through the fixed support  12 . The second locking portion  135  is connected to one end of the deforming portion  134  disposed below the fixed support  12 . The deforming portion  134  may be elastically deformed under action of the unlocking member  14 , so that the second locking portion  135  can be switched between the locked state and the unlocked state through the extending and retracting movement. 
     The deforming portion  134  may be elastically deformed under the action of the unlocking member  14 , so as to drive the second locking portion  135  to extend and retract (when extending, the second locking portion  135  is in the locked state; and when being compressed, the second locking portion  135  is in the unlocked state). Therefore, the purpose of switching the second locking portion  135  between the locked state and the unlocked state is achieved. 
     Regarding the structure of the deforming portion  134 , in an optional implementation, as shown in  FIG.  13   , the deforming portion  134  includes a top plate  1341 , a first side plate  1342 , and a second side plate  1343 . The first side plate  1342  and the second side plate  1343  are respectively connected to two opposite ends of the top plate  1341 , and there is a gap  1344  between the first side plate  1342  and the second side plate  1343 . The second locking portion  135  is connected to a first surface of the first side plate  1342  and is connected to a second surface of the second side plate  1343 . The first surface is a surface of the first side plate  1342  which is away from the gap  1344 , and the second surface is a surface of the second side plate  1343  which is away from the gap  1344 . 
     The top plate  1341  may have an arc plate shape or a flat plate shape. In particular, the arc plate shape is selected to enable the deforming portion  134  to be more conducive for elastic deformation. The first side plate  1342  and the second side plate  1343  are elongated rectangular plates to simplify the structure. Based on the existence of the top plate  1341 , there is a gap  1344  between the first side plate  1342  and the second side plate  1343  to endow the deforming portion  134  with elasticity. 
     In the extending state (that is, the initial state), due to the existence of the gap  1344 , the two second locking portions  135  are in the locked state. In a compressed state, the length of the gap  1344  is reduced, so that the two second locking portions  135  are also compressed correspondingly, and then switched to the unlocked state. 
     In another optional implementation, the deforming portion  134  includes two supporting side plates having opposite gaps, and an elastic member, for example, a compression spring, disposed between the two supporting side plates. A second locking portion  135  is connected to a surface of each supporting side plate away from the gap (the relevant drawing is not shown). 
     For such implementation, the elastic member is connected between the two supporting side plates to endow the deforming portion  134  with the elasticity. 
     In the embodiment of the present disclosure, the structure of the second locking portion  135  may be referred to the above description of the first locking portion  133 , which will not be repeated here. 
     In some optional implementations, as shown in  FIG.  13   , the unlocking member  14  includes a second operating portion  144  and a second transmission portion  145 . The second transmission portion  145  is arc-shaped, and the second transmission portion  145  is disposed on the top of the fixed support  2  (referring to  FIG.  12   ). The second operating portion  144  is connected to the outside of the second transmission portion  145 . 
     There are two unlocking members  14 , and the deforming portion  134  includes a first deforming portion  1345  and a second deforming portion  1346 . Two ends of the second transmission portion  145  of one unlocking member  14  are respectively connected to a first surface of the first deforming portion  1345  and a first surface of the second deforming portion  1346 . Two ends of the second transmission portion  145  of the other unlocking member  14  are respectively connected to a second surface of the first deforming portion  1345  and a second surface of the second deforming portion  1346 . 
     The structures of the first deforming portion  1345  and the second deforming portion  1346  may be referred to the above description of the structure of the deforming portion  134 . That is, each of the first deforming portion  1345  and the second deforming portion  1346  includes the top plate  1341 , the first side plate  1342 , and the second side plate  1343 . The first side plate  1342  and the second side plate  1343  are respectively connected to two opposite ends of the top plate  1341 , and there is a gap  1344  between the first side plate  1342  and the second side plate  1343 . 
     Two ends of the second transmission portion  145  of one unlocking member  14  are respectively connected to the first surfaces of the first side plates  1342  of the first deforming portion  1345  and the second deforming portion  1346 . Two ends of the second transmission portion  145  of the other unlocking member  14  are respectively connected to the second surfaces of the second side plates  1343  of the first deforming portion  1345  and the second deforming portion  1346 . 
     During application, the two second operating portions  144  are simultaneously pressed to reduce an interval between the two second transmission portions  145 . The second transmission portions  145  transmit the pressing force to the first deforming portion  1345  and the second deforming portion  1346  of the unlocking member  14 , so that the length of the gap  1344  of both the first deforming portion  1345  and the second deforming portion  1346  is reduced. Therefore, the two second locking portions  135  connected to the first deforming portion  1345  and the two second locking portions  135  connected to the second deforming portion  1346  are all compressed correspondingly, and then are switched to the unlocked state (referring to the unlocking process shown in  FIG.  14   ). When the second operating portion  144  is no longer pressed, the deforming portion  134  is automatically reset based on the elasticity thereof and restores the locked state. 
     In some optional implementations, as shown in  FIG.  3   , the adapter according to the embodiment of the present disclosure further includes a guiding block  15 . The guiding block  15  is connected to a bottom of the fixed support  12 , and may move along a length direction of the electrified guide rail  3 . 
     The shape and structure of the guiding block  15  should ensure that the guiding block can be plugged into the accommodating cavity  302  through the opening  301  in the electrified guide rail  3 . 
     The wall of the guiding block  15  has a first accommodating space  151  and a second accommodating space  152 . The first accommodating space  151  is configured to accommodate the power-taking portion  2 . The second accommodating space  152  is configured to accommodate the first locking portion  133  or the second locking portion  135 . 
     The power-taking portion  2  is accommodated in the first accommodating space  151  when in an assemble state and plays a protective role, and is smoothly plugged into the accommodating cavity  302  through the opening  301  in the electrified guide rail  3 . When the power-taking portion  2  is rotated, the guiding block  15  is connected to the bottom of the fixed support  12 , so that the guiding block  15  can always stay in the original position, and only the power-taking portion  2  is out the first accommodating space  151  by rotating. 
     The first locking portion  133  or the second locking portion  135  is accommodated in the second accommodating space  152 . The second accommodating space  152  should not affect the rotation or extending or retracting movement of the first locking portion  133  or the second locking portion  135 . 
     Further, in the unlocked state, the first locking portion  133  or the second locking portion  135  is hidden in the second accommodating space  152 . 
     The second accommodating space  152  is configured that: when the first locking portion  133  or the second locking portion  135  is in the locked state, the second accommodating space  152  only accommodates the locking portion body of the first locking portion  133  or the second locking portion  135 ; when the first locking portion  133  or the second locking portion  135  is in the unlocked state, the second accommodating space  152  accommodates the first locking portion  133  or the second locking portion  135  as a whole (that is, not only are the locking portion bodies of the first locking portion and the second locking portion accommodated in the second accommodating space  152 , but also the locking blocks of the first locking portion and the second locking portion are accommodated in the second accommodating space  152 ). It can be seen that the second accommodating space  152  is configured to provide an accommodating space for the first locking portion  133  or the second locking portion  135  in the unlocked state, so as to hide the first locking portion  133  or the second locking portion  135  in the unlocked state. 
     According to the above structure of the adapter, the first locking portion  133  is taken as an example to illustrate some plugging or unplugging operation processes of the adapter. 
     In some optional implementations, referring to the drawing number (A) in  FIG.  1   , before the adapter is plugged into the electrified guide rail  3 , the locking member  13  is in the unlocked state. 
     Referring to the drawing number (B) in  FIG.  1   , when the adapter is plugged into the electrified guide rail  3 , that is, when the first locking portion  133  enters the opening  301  of the electrified guide rail  3  from the outside, the guiding surface  1333  acts on the inner wall of the opening  301  by contact, so as to drive the first locking portion  133  to rotate. When the first locking portion  133  is rotated to a certain angle, for example 90°, the first locking portion  133  is completely hidden in the second accommodating space  152 . At this time, there is no obstruction between the opening  301  of the electrified guide rail  3  and the power-taking portion  2 , and the adapter can be smoothly plugged into the accommodating cavity  302  of the electrified guide rail  3 . 
     Referring to the drawing number (C) in  FIG.  1   , when the adapter is completely plugged into the accommodating cavity  302  of the electrified guide rail  3 , there is no interaction force between the opening  301  of the electrified guide rail  3  and the first locking portion  133 . The first locking portion  133  is restored to the initial locked state under the action of the elastic portion  143 . At this time, the locking block  1332  of the first locking portion  133  and the opening  301  of the electrified guide rail  3  are misaligned. Under the action of a general external force, the adapter cannot fall off from the electrified guide rail. 
     In some optional implementations, when the adapter is unplugged from the inside of the electrified guide rail  3 , that is, when the first locking portion  133  enters the opening  301  of the electrified guide rail  3  from the accommodating cavity  302 , the first operating portion 131  is operated, for example, is pressed, to finally drive the first locking portion  133  to rotate. When the first locking portion  133  is rotated to a certain angle, for example 90°, the first locking portion  133  is completely hidden in the second accommodating space  152 . At this time, there is no obstruction between the opening  301  of the electrified guide rail  3  and the power-taking portion  2 , and the adapter can be smoothly unplugged from the opening  301  of the electrified guide rail  3  (the state may also be referred to the drawing number (A) in  FIG.  1   ). 
     In another aspect, the embodiment of the present disclosure also provides a rail socket. As shown in  FIG.  1   , the rail socket includes an electrified guide rail  3  and any one of the above dapters. The top and the inside of the electrified guide rail  3  respectively have an opening  301  and an accommodating cavity  302  which extend along the length direction of the electrified guide rail  3 . The power-taking portion  2  of the adapter may be assembled into the accommodating cavity  302  through the opening  301 , and may rotate in the accommodating cavity  302  to a power-taking position for taking power. 
     The rail socket according to the embodiment of the present disclosure is based on the use of any one of the above adapters. When the electrified guide rail  3  is in a non-power-taking state, for example, in the assembly position, the adapter will not be separated from the electrified guide rail  3 . In this way, it is not only conducive to protect the electrified guide rail  3 , but also conducive to the efficient and stable operation of the adapter on the electrified guide rail  3  and the improvement of the user experience. 
     The rail socket according to the embodiment of the present disclosure includes but not limited to: a power socket and a universal serial bus (USB) socket, that is, the socket portion  1  is correspondingly designed as a power adapter or a USB adapter. 
     In some optional implementations, as shown in  FIG.  1   , a soft protective strip  303 , for example, made of silica gel, is disposed on both sides of the top wall of the opening  301 , and the soft protective strip  303  extends along the length direction of the opening  301 . The soft protective strip  303  is configured to prevent impurities and the like from falling into the accommodating cavity, and can protect the components inside the accommodating cavity  302 . Meanwhile, the protective strip is soft and thus does not affect the plugging and unplugging of the adapter. 
     In the case of improper use of the user or a severe external force, the adapter may be forced to drop from the electrified guide rail. However, due to the existence of the soft protective strip  303 , the adapter would not be broken in the process of being forced to drop and a protective effect to the adapter would be played, and the locking member would not be broken at the same time. 
     In some optional implementations, the power-taking portion  2  includes a first electrical contact structure  21  (for example, an N-pole electrical contact structure), a first electrical contact structure  22  (for example, an L-pole electrical contact structure), and a third electrical contact structure  23  (for example, an E-pole electrical contact structure). When the power-taking portion  2  is rotated to the power-taking position, these electrical contact structures are respectively in contact with the conductive structures disposed inside the accommodating cavity  302  of the electrified guide rail  3 . 
     As shown in  FIG.  15    or  FIG.  16   , the electrified guide rail according to the embodiment of the present disclosure includes a guide rail body  31 , a first conductive sheet  321 , a second conductive sheet  322 , and a third conductive sheet  323 . 
     An inside of the guide rail body  31  has an accommodating cavity  302  extending along the length direction of the guide rail body  31 , and the top of the guide rail body  31  has an opening  301  extending along the length direction of the guide rail body  31 . The opening  301  is communicated with the accommodating cavity  302 . 
     The first conductive sheet  321  and the second conductive sheet  322  are respectively disposed at the inner side of the top wall of the accommodating cavity  302  on both sides of the opening  301 , and the first conductive sheet  321  and the second conductive sheet  322  both extend along the length direction of the guide rail body  31 . The bottoms of the first conductive sheet  321  and the second conductive sheet  322  are configured for electrical contact. The third conductive sheet  323  is disposed at the inner side of the bottom wall of the accommodating cavity  302  and extends along the length direction of the guide rail body  31 . A top of the third conductive sheet  323  is configured for electrical contact. 
     One of the first conductive sheet  321  and the second conductive sheet  322  is an L-pole conductive sheet while the other is an N-pole conductive sheet. The third conductive sheet  323  is an E-pole conductive sheet. 
     A plug (not shown) is led out from the exterior, for example, from the bottom of the electrified guide rail  3 . The plug has an N-pole lead, an L-pole lead, and an E-pole lead therein. Exemplarily, the L-pole lead and the N-pole lead are electrically connected to the first conductive sheet  321  and the second conductive sheet  322  respectively, and the E-pole lead is electrically connected to the third conductive sheet  323 , so that a conductive path is formed among the plug and the respective conductive sheets. During application, the plug of the electrified guide rail  3  is plugged into a fixed socket fixed on a fixed object such as a wall or a desktop, and the fixed socket is configured to supply power to the electrified guide rail. 
     In the electrified guide rail according to the embodiment of the present disclosure, the first conductive sheet  321 , the second conductive sheet  322  and the third conductive sheet  323  are respectively disposed in the accommodating cavity  302  of the guide rail body  31  along the length direction. Each of the above conductive sheets has a sheet structure and has a smaller size, so that the size of the accommodating cavity  302  is correspondingly reduced, thereby effectively reducing the thickness of the electrified guide rail  1 . The first conductive sheet  321  and the second conductive sheet  322  are both disposed on the top wall of the accommodating cavity  302 , and only the bottoms of the first conductive sheet  321  and the second conductive sheet  322  are configured for electrical contact. In this way, an electrical contact area between the first conductive sheet  321  and an electrical connector, and an electrical contact area between the second conductive sheet  322  and the electrical connector can be reduced, so that a frictional area is further reduced, which is conductive to reduce the wear. 
     The structural arrangements of respective components in the electrified guide rail  1  involved in the embodiment of the present disclosure are described respectively below. 
     For the Guide Rail Body  31   
     In some optional implementations, as shown in  FIG.  15   , the guide rail body  31  includes a top plate  3101 , a bottom plate  3102  and two first side plates  3103 . An upper end of one first side plate  3103  is connected to an upper end of one side of the top plate  3101 , and a lower end of the first side plate  3103  is connected to a lower end of one side of the bottom plate  3102 . The side of the top plate  3101  and the side of the bottom plate  3102  extend in the length direction. An upper end of the other first side plate  3103  is connected to an upper end of the other side of the top plate  3101 , and a lower end of the other first side plate  3103  is connected to a lower end of the other side of the bottom plate  3102 . The other side of the top plate  3101  and the other side of the bottom plate  3102  extend in the length direction. The two first side plates  3103 , the top plate  3101  and the bottom plate  3102  which have the above connection relationship cooperate to form the accommodating cavity  302 . 
     On the top plate  3101 , for example, the middle of the top plate  3101  is provided with an opening  301  along the length direction of the top plate  3101 . The opening  301  is communicated with the accommodating cavity  302 . The opening  301  is configured for plugging the power-taking portion of a power supply connector, so that the power-taking portion of the power supply connector smoothly enters the accommodating cavity  302  to take power. 
     In some optional implementations, as shown in  FIG.  15   , two second side plates  3104  are symmetrically disposed in the accommodating cavity  302  along the length direction. The two second side plates  3104  are respectively disposed at two sides of the opening  301 . The upper end and the lower end of the second side plate  3104  are respectively connected, for example, perpendicularly connected to the top plate  3101  and the bottom plate  3102  at corresponding positions. 
     The accommodating cavity  302  is divided into three parts by the two second side plates  3104 , that is, a middle cavity and side part cavities disposed on two sides of the middle cavity respectively. The above first conductive sheet  321 , second conductive sheet  322  and third conductive sheet  323  are disposed in the middle cavity. In this way, the power-taking portion of the electrical connector is plugged into the middle cavity through the opening  301  to be in electrical contact with the above conductive sheets. 
     A reinforcing structure is disposed in the side part cavity. For example, the reinforcing structure may be a reinforcing plate (not marked in the drawing) parallel to the top plate  3101  and the bottom plate  3102 , and the two ends of the reinforcing plate are respectively connected to the first side plate  3103  and the second side plate  3104 , so that the structural stability of the guide rail body  31  can be significantly improved. 
     In some optional implementations, the guide rail body  31  further includes two cover plates (not marked in the drawing). The two cover plates are respectively disposed at the two ends of the top plate  3101  and the bottom plate  3102  perpendicular to the length direction. Each cover plate is connected to the end parts of the top plate  3101 , the bottom plate  3102  and the two side plates  3103  simultaneously. The cover plates are configured to block the two ports of the accommodating cavity  302  to protect respective components inside the accommodating cavity  302 . 
     The connection mode between the cover plate and the end parts of the top plate  3101 , the bottom plate  3102  and the two side plates  3103  is a detachable connection. For example, a screw via hole is disposed in the cover plate, and a screw mounting sleeve (not marked in the drawing) is disposed at the position of the reinforcing plate corresponding to the screw via hole. A screw passes through the screw via hole in the cover plate and is connected to the screw mounting sleeve by threads, thereby achieving the above detachable connection. 
     For the First Conductive Sheet  321  and the Second Conductive Sheet  322   
     One of the first conductive sheet  321  and the second conductive sheet  322  is an L-pole (live wire) conductive sheet while the other is an N-pole (zero wire) conductive sheet, and the first conductive sheet and the second conductive sheet are symmetrically disposed on the inner side of the top wall of the accommodating cavity  302  at both sides of the opening  301 . In some optional implementations, the structures of the first conductive sheet  321  and the second conductive sheet  322  are the same, so as to simplify the structure of the electrified guide rail. 
     Regarding the structural arrangement of the first conductive sheet  321  and the second conductive sheet  322  in the length direction, as an example, as shown in  FIG.  17   , each of the first conductive sheet  321  and the second conductive sheet  322  includes a plurality of conductive segments  3203  and a plurality of gaps  3204 , which are distributed in the length direction. Each gap  3204  is disposed between two adjacent conductive segments  3203 . 
     Taking the first conductive sheet  321  as an example, referring to  FIG.  17   , the plurality of conductive segments  3203  are sequentially distributed along the length direction of the first conductive sheet  321  at intervals, and the bottom of each conductive segment  3203  is configured for electrical contact. Each gap  3204  extends along a width direction of the first conductive sheet  321  and does not run through the two end parts of the first conductive sheet  321  in the width direction. In this way, the first conductive sheet  321  still maintains an integral structure. 
     Due to the existence of the gaps  3204 , the plurality of conductive segments  3203  are prevented from being affected by each other. For example, when the power-taking portions of multiple electrical connectors are simultaneously plugged into the accommodating cavity  302  of the electrified guide rail  1 , the power-taking portions of the multiple electrical connectors are in electrical contact with the conductive segments  3203  at the corresponding positions respectively. In this way, the power-taking portion of one certain electrical connector will only support upward the conductive segment  3203  in contact therewith, and only enable such conductive segment  3203  to have an upward movement tendency, without enabling other conductive segments  3203  adjacent to such conductive segment  3203  to acquire the upward movement tendency. That is, these other conductive segments  3203  are remained in the original positions. In this way, more reliable electrical contact can be achieved between the power-taking portions of the multiple electrical connectors and the conductive segments  3203  at the corresponding positions. 
     In addition, the existence of the gaps  3204  is also conducive to reduce the weight of the first conductive sheet  321  and the second conductive sheet  322 , which is beneficial to save the cost of raw materials. 
     In the embodiment of the present disclosure, the width of the plurality of gaps  3204  is the same. For example, the width of the gaps  3204  ranges from 1 mm to 4 mm, for example, 1 mm, 2 mm, 3 mm, 4 mm, etc. Due to the gaps  3204  of the above width, not only is the effective mechanical isolation between the respective conductive segments  3203  realized, but also the erosion and forming on the above respective conductive sheets are facilitated. 
     Regarding the structural arrangement of the first conductive sheet  321  and the second conductive sheet  322  in the width direction, as an example, as shown in  FIG.  18   , each of the first conductive sheet  321  and the second conductive sheet  322  includes a connecting portion  3201  and an electrical contact portion  3202 . The connecting portion  3201  is connected to the wall at the corresponding position of the accommodating cavity  302  in an insulating manner. 
     The electrical contact portion  3202  is a hollow convex structure, and a convex direction of the electrical contact portion  3202  faces the bottom wall of the accommodating cavity  30 . Due to such arrangement, when the electrical contact portion  3202  is in contact with the power-taking portion of the electrical connector, due to the hollow convex structure thereof, the electrical contact portion has certain elasticity, which is beneficial to reduce the wear. 
     In an optional implementation, the electrical contact portion  3202  is an arc-shaped convex structure. 
     In an optional implementation, as shown in  FIG.  18   , the electrical contact portion  3202  includes a first support section  32021 , a contact section  32022 , and a second support section  32023 , and the first support section  32021  and the second support section  32023  are both obliquely disposed. 
     A first end of the first support section  32021  is connected to the connecting portion  3201 , and a second end of the first support section  32021  extends toward the bottom wall of the accommodating cavity  302  and is connected to a first end of the contact section  32022 . A second end of the contact section  32022  is connected to a first end of the second support section  32023 , and a second end of the second support section  32023  extends toward the top wall of the accommodating cavity  302 . The contact section  32022  may be horizontal or arc-shaped. 
     The second end of the first support section  32021  extends toward the bottom wall of the accommodating cavity  302  and is connected to the first end of the contact section  32022 . Besides, the first end of the second support section  32023  also extends toward the bottom wall of the accommodating cavity  302  and is connected to the second end of the contact section  32022 , so that the electrical contact portions  3202  of the first conductive sheet  321  and the second conductive sheet  322  form a hollow convex structure, the convex direction of which faces the bottom wall of the accommodating cavity  302 . 
     The bottom of the contact section  32022  is configured for electrical contact. Under the support of the first support section  32021  and the second support section  32023 , a gap is formed between the contact section  32022  and the top wall of the accommodating cavity  302 , so that the electrical contact portion  3202  has elasticity. Both the first conductive sheet  321  and the second conductive sheet  322  are metal sheets, which is beneficial to increase the elasticity of the electrical contact portion  3202 . 
     The height of the gap between the contact section  32022  and the top wall of the accommodating cavity  302  is directly related to the inclination and length of the first support section  32021  and the second support section  32023 . The inclination and length of the first support section  32021  and the second support section  32023  are designed differently to adaptively acquire different heights of the above gap. 
     Illustratively, the height of the gap between the contact section  32022  and the top wall of the accommodating cavity  302  ranges from 1.5 mm to 5 mm, for example, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 4.5 mm, etc. 
     Taking the first conductive sheet  321  as an example, after the power-taking portion of the electrical connector has been in electrical contact with the bottom of the first conductive sheet  321  for multiple times, the bottom of the first conductive sheet  321  will be worn to a certain extent, and the bottom contact position of the contact section  32022  is caused to move up. In this case, in order to keep the power-taking portion of the electrical connector to be always in contact with the bottom of the first conductive sheet  321 , when the first conductive sheet  321  is installed, the bottom contact position of the contact section  32022  is lowered by a certain distance from a normal contact position, so as to solve for the problem of upward movement of the bottom contact position of the contact section  32022  caused by the wear (the downward movement distance of the bottom contact position of the contact section  32022  is generally determined according to the wear thickness of the worn part at the bottom). 
     It can be seen that, based on the above structural design, when the power-taking portion of the electrical connector is in electrical contact with the bottom of the contact section  32022 , since the electrical contact portion  3202  has elasticity, when the power-taking portion of the electrical connector is in contact with the bottom of the contact section  32022 , the contact section  32022  is pressed upward to make it elastically deformed. In this way, even if the bottom contact position of the contact section  32022  moves down relative to the normal contact position, the contact section can still achieve smooth electrical contact with the power-taking portion of the electrical connector. After multiple electrical contacts, even if the bottom of the contact section  32022  is worn, the bottom contact position can still be maintained within the range of the normal contact position, so as to achieve normal electrical contact with the power-taking portion of the electrical connector. 
     Further, in the electrified guide rail according to the embodiment of the present disclosure, there is a gap between the second end of the second support section  32023  and the top wall of the accommodating cavity  302 . For example, the height of the gap between the second end of the second support section  32023  and the top wall of the accommodating cavity  302  ranges from 1 mm to 2.5 mm. By disposing the above gap between the second end of the second support section  32023  and the top wall of the accommodating cavity  302 , it is beneficial to increase the elasticity of the electrical contact portion  3202 . 
     Further, in the electrified guide rail according to the embodiment of the present disclosure, as shown in  FIG.  18   , the electrical contact portion  3202  further includes a horizontal section  32024 . A first end of the horizontal section  32024  is connected to the second end of the second support section  32023 , and a second end of the horizontal section  32024  extends in a direction away from the contact section  32022 . The horizontal section  32024  is parallel to the top wall of the accommodating cavity  302 , and there is a gap between the horizontal section  32024  and the top wall of the accommodating cavity  302 . 
     Exemplarily, the height of the gap between the horizontal section  32024  and the top wall of the accommodating cavity  302  ranges from 1 mm to 2.5 mm. 
     When the power-taking portion of the electrical connector is in electrical contact with the bottom of the contact section  32022  and presses the contact section  32022  upward, the horizontal section  32024  can be in contact with the top wall of the accommodating cavity  302 . The top wall of the accommodating cavity  302  is configured to provide stable support for the horizontal section  32024 , thereby preventing the electrical contact portion  3202  having elasticity from being deformed, which is beneficial to improve the structural stability of the electrical contact portion  3202 . 
     For the Third Conductive Sheet  323   
     The third conductive sheet  323  is an E-pole conductive sheet, and the third conductive sheet  323  is connected to the bottom wall of the accommodating cavity  302 , for example, may also be opposite to the opening  301 . 
     The third conductive sheet  323  may not be provided with the above gap  3204  along the length direction, or may be provided with the above gap  3204  to achieve the purpose of weight reduction. 
     In the width direction of the third conductive sheet  323 , as shown in  FIG.  19   , the third conductive sheet  323  includes two connecting portions  3201  and an electrical contact portion  3202 , and the two connecting portions  3201  are respectively connected to the two ends of the electrical contact portion  3202  in the width direction. 
     As an example, as shown in  FIG.  19   , the electrical contact portion  3202  of the third conductive sheet  323  includes a third inclined section  32025 , an electrical contact section  32026 , and a fourth inclined section  32027 . A first end of the third inclined section  32025  is connected to one connecting portion  3201 . A second end of the third inclined section  32025  extends in a direction away from the bottom wall of the accommodating cavity  302 , and a second end of the third inclined section  32025  is connected to a first end of the electrical contact section  32026 . A second end of the electrical contact section  32026  is connected to a first end of the fourth inclined section  32027 . A second end of the fourth inclined section  32027  extends in a direction close to the bottom wall of the accommodating cavity  302 , and the second end of the fourth inclined section  32027  is connected to the other connecting portion  3201 . The electrical contact section  32026  may be horizontal (referring to  FIG.  19   ), or may be arc-shaped. 
     With such an arrangement, the electrical contact portion  3202  of the third conductive sheet  323  forms a hollow boss structure, a convex direction of which faces the top wall of the accommodating cavity  302  (for example, faces the opening  301 ), so that the electrical contact portion  3202  of the third conductive sheet  323  has elasticity. The third conductive sheet  323  is a metal sheet, which is beneficial to increase the elasticity of the electrical contact portion  3202  thereof. 
     During application, the top of the electrical contact section  32026  is in electrical contact with the bottom of the power-taking portion of the electrical connector. Based on the above structure of the third conductive sheet  323 , it can be ensured that the top of the electrical contact section  32026  still maintains good contact with the bottom of the power-taking portion of the electrical connector in the case of wear. 
     The connecting portion  3201  of each above conductive sheet is connected to the wall at the corresponding position of the accommodating cavity  302  in an insulating manner. When the material of the guide rail body  31  is an insulating material, for example, a high polymer resin material, a ceramic material, etc., at this time, the connecting portion  3201  may be directly connected to the wall at the corresponding position of the accommodating cavity  302 . 
     When the material of the guide rail body  31  is a conductive material, for example, a metal material of aluminum alloy and the like, at this time, the electrified guide rail according to the embodiment of the present disclosure further includes an insulating partition  4 . The connecting portion  3201  of each above conductive sheet is connected to the wall at the corresponding position of the accommodating cavity  302  through the insulating partition  4  to achieve the purpose of insulating connection. 
     In some optional implementations, as shown in  FIG.  20   , the insulating partition  4  includes a first cavity portion  41  having a first cavity and a second cavity portion  42  having a second cavity. 
     The first cavity of the first cavity portion  41  essentially belongs to the opening  301 , and is configured to plug the power-taking portion of the electrical connector. Besides, the first cavity portion  41  is connected to the wall of the guide rail body  31  at both sides of the opening  301  in a clamping manner and is accommodated in the opening  301 . Exemplarily, the top wall of the guide rail body  31  is provided with a clamping slot along the length direction. The top of the first cavity portion  41  is provided with a clamping block corresponding to the clamping slot along the length direction. The clamping block is clamped in the clamping slot to achieve the clamping connection between the first cavity portion  41  and the guide rail body  31 . 
     The second cavity portion  42  is connected to the first cavity portion  41 , and is accommodated in the accommodating cavity  302 , and specifically, is accommodated inside a middle cavity of the accommodating cavity  302 . The second cavity of the second cavity portion  42  essentially belongs to the accommodating cavity  302  and is configured to accommodate the first conductive sheet  321 , the second conductive sheet  322  and the third conductive sheet  323 . At this time, the connection between the connecting portion  3201  and the insulating partition  4  is essentially the connection between the connecting portion  3201  and the inner wall of the second cavity portion  42 . 
     In one case, the connecting portion  3201  is directly connected to the wall of the accommodating cavity  302 . Or, in another case, the connecting portion  3201  is directly connected to the insulating partition  4 . The corresponding specific connection modes in these two cases may be the same. 
     In the following, the case where the electrified guide rail includes the insulating partition  4  is taken as an example to illustrate the connection mode of the connecting portion  3201  of each conductive sheet and the insulating partition  4 . 
     For the connection between the connecting portions  3201  of the first conductive sheet  321  and the second conductive sheet  322  and the insulating partition  4 : 
     In some optional implementations, as shown in  FIG.  18   , the connecting portions  3201  of the first conductive sheet  321  and the second conductive sheet  322  are bent. The inner wall of the insulating partition  4  has a side part clamping block  401 . A bent clamping slot is formed between the side part clamping block  401  and the inner wall of the insulating partition  4 . The connecting portion  3201  is embedded into the bent slot for fixing. 
     Further, for example, as shown in  FIG.  18   , the bent connecting portion  3201  of the first conductive sheet  321  and the second conductive sheet  322  includes a first horizontal connecting section  32011 , a vertical connecting section  32012  and a second horizontal connecting section  32013  which are connected in sequence. The first horizontal connecting section  32011  and the second horizontal connecting section  32013  are disposed on the same side of the vertical connecting section  32012 . 
     The first horizontal connecting section  32011  is connected to the lower end of the vertical connecting section  32012 , and the second horizontal connecting section  32013  is connected to the upper end of the vertical connecting section  32012 . Besides, the top wall of the second horizontal connecting section  32013  abuts against the inner side of the top wall of the insulating partition  4 . 
     As an example, as shown in  FIG.  18   , the side part clamping block  401  includes a first horizontal clamping section  4011 , a first vertical clamping section  4012 , and a second horizontal clamping section  4013 . A first end of the horizontal clamping section  4011  is connected to the inner side of the side wall of the insulating partition  4 , and a second end of the first horizontal clamping section  4011  is connected to a first end of the first vertical clamping section  4012 . A second end of the first vertical clamping section  4012  extends in a direction close to the top wall of the insulating partition  4 , and there is a first gap between the second end of the first vertical clamping section  4012  and the top wall of the insulating partition  4 . The second horizontal clamping section  4013  is disposed above the first horizontal clamping section  4011  and there is a second gap between the second horizontal clamping section  4013  and the first horizontal clamping section  401 . A first end of the second horizontal clamping section  4013  is connected to the first vertical clamping section  4012 . A second end of the second horizontal clamping section  4013  extends along a direction close to the side wall of the insulating partition  4 , and there is a third gap between the second end of the second horizontal clamping section  4013  and the inner side of the side wall of the insulating partition  4 . 
     The first gap, the second gap and the third gap cooperate to form the above bent clamping slot. 
     During application, the first horizontal connecting section  32011  is embedded into the second gap between the first horizontal clamping section  4011  and the second horizontal clamping section  4013 . The vertical connecting section  32012  is embedded into the third gap between the second horizontal clamping section  4013  and the inner side of the side wall of the insulating partition  4 . The second horizontal connecting section  32013  is embedded into the first gap between the first vertical clamping section  4012  and the inner side of the top wall of the insulating partition  4 . In this way, the first horizontal connecting section  32011 , the vertical connecting section  32012 , and the second horizontal connecting section  32013  realize the simultaneous clamping connection with the side part clamping block  401 . 
     When in installation, the first conductive sheet  321  and the second conductive sheet  322  enter from one of the ports of the accommodating cavity  302 , so that the connecting portions  3201  of the first conductive sheet  321  and the second conductive sheet  322  are plugged into the clamping cavity formed by the side part clamping block  401 . After the installation of the first conductive sheet  321  and the second conductive sheet  322  is completed, the cover plates are configured to block the two ports of the accommodating cavity  302  to protect respective components inside the accommodating cavity  302 . 
     For the connection between the connecting portion  3201  of the third conductive sheet  323  and the insulating partition  4 : 
     In some optional implementations, as shown in  FIG.  19   , the connecting portions  3201  of the third conductive sheet  323  are disposed at two opposite ends of the electrical contact portion  3202 , and are a sheet structure extending in the horizontal direction. The inner side of the bottom wall of the insulating partition  4  has a bottom clamping block  402 , and the connecting portion  3201  of the third conductive sheet  323  is connected to the bottom clamping block  402  in a clamping manner. 
     Exemplarily, the bottom clamping block  402  includes a second vertical clamping section  4021  and a third horizontal clamping section  4022 . A first end of the second vertical clamping section  4021  is connected to the inner side of the bottom wall of the insulating partition  4 . A second end of the second vertical clamping section  4021  is connected to a first end of the third horizontal clamping section  4022 , so that the third horizontal clamping section  4022 , the second vertical clamping section  4021  and the bottom wall of the insulating partition  4  cooperate to form a clamping cavity, and the connecting portion  3201  of the third conductive sheet  323  is limited in the clamping cavity. 
     When in installation, the third conductive sheet  323  enters from one of the ports of the accommodating cavity  302 , and the connecting portions  3201  at both ends of the third conductive sheet  323  are plugged into the corresponding clamping cavity. After the installation of the third conductive sheet  323  is completed, the cover plates are configured to block two ports of the accommodating cavity  302  to protect respective components inside the accommodating cavity  302 . 
     In some optional implementations, as shown in  FIG.  21   , the first electrical contact structure  21  and the second electrical contact structure  22  of the power-taking portion  2  are respectively disposed on the top of the power-taking portion  2 , and the third electrical contact structure  23  is disposed at the bottom of the power-taking portion  2  to facilitate electrical contact with the first conductive sheet  321 , the second conductive sheet  322  and the third conductive sheet  323 . 
     In the embodiment of the present disclosure, the first electrical contact structure  21  and the second electrical contact structure  22  are both disposed at the top position of the power-taking portion  2 , and meanwhile are both disposed in the gap between the top of the power-taking portion  2  and the bottom of the socket portion  1 . In this way, the first electrical contact structure  21  and the second electrical contact structure  22  are not easily touched, so that not only is electricity utilization safer, but also the first electrical contact structure  21  and the second electrical contact structure  22  are not easily contaminated, which helps to improve the service life of the adapter. 
     In some optional implementations, the power-taking portion  2  may be integrally formed by encapsulation. Due to such arrangement, the power-taking portion  2  has high strength and is not easily deformed, and it is also beneficial to reduce the thickness of the power-taking portion  2 . 
     The term “first” or “second” used in the embodiments of the present disclosure is merely configured to describe but not denote or imply any relative importance. The term “a plurality of” means two or more, unless otherwise expressly provided. 
     Described above are merely exemplary embodiments of the present disclosure, and are not intended to limit the present disclosure. Within the spirit and principles of the disclosure, any modifications, equivalent substitutions, improvements, and the like are within the protection scope of the present disclosure.