Patent Publication Number: US-2023134209-A1

Title: Bulb adaptor

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This is a U.S. patent application which claims the priority and benefit of Chinese Patent Application Number 202122636941.2, filed on Oct. 29, 2021, the disclosure of which is incorporated herein by reference in its entirety. 
     TECHNICAL FIELD 
     The disclosure relates to a field of lamp adaptors, in particular to a bulb adaptor. 
     BACKGROUND 
     For existing bulb adaptors, generally, threaded bulbs are connected with threaded adaptors and bayonet bulbs are connected with bayonet adaptors. However, when corresponding bulbs cannot be bought for the threaded adaptors or bayonet adaptors, the bulbs cannot be used with the adaptors, which is very inconvenient. 
     SUMMARY 
     An embodiment of the disclosure is to provide a bulb adaptor which can be matched and used with a threaded bulb or a bayonet bulb, which is convenient to use. 
     Embodiments of the disclosure can be realized as follows. 
     A bulb adaptor is provided in an embodiment of the disclosure, which includes a mounting housing, a rotating mechanism, a first connecting member and a second connecting member with cavities inside. 
     The mounting housing has a cylindrical structure and is provided with a first opening and a second opening oppositely disposed, and an inner wall of the mounting housing is provided with threads at the first opening. 
     The first connecting member includes a convex first live contact part and two first metal connecting parts. One of the first metal connecting parts is electrically connected with the threads, and the other of the first metal connecting parts is electrically connected with the first live contact part. 
     The second connecting member includes a convex second live contact part, a neutral contact part and two second metal connecting parts. The two second metal connecting parts are electrically connected with the second live contact part and the neutral contact part respectively. The second connecting member is arranged crosswise with the first connecting member, so that the first live contact part is staggered with both the second live contact part and the neutral contact part. 
     The rotating mechanism includes a rotating member and a convex part fixed to the rotating member. The convex part has a first position and a second position. The first position is where the convex part is in electrical contact with the two first metal connecting parts, and the second position is where the convex part is in electrical contact with the two second metal connecting parts. The rotating member is slidably connected with the mounting housing, so that the rotating member can rotate along a circumferential direction of the mounting housing, and the convex part moves between the first position and the second position. 
     Further, the first connecting member includes a first supporting part connected with both ends of the first live contact part, and a bottom end of the first supporting part is provided with the first metal connecting part. The second connecting member includes two second supporting parts connected with the second live contact part and the neutral contact part, and a bottom end of each of the second supporting part is provided with a second metal connecting part. The first supporting part is connected with the mounting housing through a first telescopic connecting member, and the second supporting part is connected with the mounting housing through a second telescopic connecting member. 
     Further, the inner wall of the mounting housing is provided with two first mounting cavities oppositely disposed and two second mounting cavities oppositely disposed, the first mounting cavities and the second mounting cavities are arranged at intervals, two first supporting parts are respectively provided in the two first mounting cavities, and two second supporting parts are respectively provided in the two second mounting cavities. 
     Further, the convex part is arranged at the second opening and extends along a radial direction of the mounting housing, two ends of the convex part along an extending direction are provided with a live contact point and a neutral contact point, a side wall of the convex part away from the second opening is connected with a live contact and a neutral contact, the live contact is electrically connected with the live contact point, and the neutral contact is electrically connected with the neutral contact point. The first position is where the live contact point and the neutral contact point of the convex part are electrically contacted with the two first metal connecting parts respectively, and the second position is where the live contact point and the neutral contact point of the convex part are electrically contacted with the two second metal connecting parts respectively. 
     Further, a cross section of the convex part along a thickness direction is trapezoidal. 
     Further, a plastic isolation plate is provided within an inner space of the mounting housing, the plastic isolation plate is defined with a plurality of through holes, and the plurality of through holes are respectively arranged corresponding to the first live contact part, the second live contact part and the neutral contact part. 
     Further, an inner wall of the rotating member is provided with a sliding part, and an outer wall of the mounting housing is provided with a limiting part with a sliding groove, the sliding groove extends along the circumferential direction of the mounting housing, and the sliding part is slidably matched with the sliding groove. 
     Further, the sliding part is a triangular protrusion. 
     Further, the sliding groove is provided with an engaging port, the sliding part is provided with an engaging joint which can be snapped with the engaging port, and the engaging port is arranged correspondingly to the first supporting parts and the second supporting parts. 
     Further, ends of the first metal connecting part and the second metal connecting part are both arc-shaped. 
     The bulb adaptor of the embodiment of the disclosure provides advantages that: 
     When the convex part is at the first position, the convex part is in electrical contact with the two first metal connecting parts, and at this time, the threaded bulb is screwed in from the first opening to form a threaded connection with the threads of the inner wall of the mounting housing, the threads of the mounting housing is electrically connected with one of the first metal connecting parts, and the other of the first metal connecting parts is electrically connected with the first live contact part, and the threads of the mounting housing serves as a neutral connecting part. When the threaded bulb is screwed in, a live wire of the threaded bulb is connected with the convex first live contact part and a neutral wire of the threaded bulb is connected with the threads of the mounting housing, so that the threaded bulb can be lit. 
     When a bayonet bulb is installed to be matched with a bulb adaptor, the rotating member moves along the circumferential direction of the mounting housing, the live contact point and the neutral contact point of the convex part are separated from the two first metal connecting parts, and a position of the first connecting member lowers along a height direction of the mounting housing. When the rotating member is rotated to the second position of the convex part, the convex part is electrically contacted with the two second metal connecting parts, and a position of the second connecting member rises along the height direction of the mounting housing. In this process, because the second connecting member is arranged crosswise with the first connecting member, the first live contact part is staggered with the second live contact part and the neutral contact part, so that the first live contact part does not interfere with the second live contact part and the neutral contact part. When the convex part is at the second position, the bayonet bulb is matched with a clamping groove of the mounting housing to fix the bulb, the live wire and the neural wire of the bayonet bulb are respectively connected with the convex second live contact part and the neutral contact part, so that the threaded bulb can be lit. 
     The bulb adaptor of the embodiment of the disclosure can be matched and used with the threaded bulb or the bayonet bulb respectively only by rotating the rotating part, which is convenient to use. 
    
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
       In order to illustrate technical schemes of embodiments of this disclosure more clearly, the following drawings used in the embodiments will be briefly introduced; it should be understood that the following drawings only show some embodiments of this application, therefore they should not be regarded as a limiting of the protection scope; and other related drawings can be obtained according to these ones without creative effort for ordinary skilled in the art. 
         FIG.  1    is a partial structural schematic diagram of the bulb adaptor when a convex part is at a first position according to an embodiment of this disclosure; 
         FIG.  2    is a structural schematic diagram of the bulb adaptor when a convex part is at the first position according to an embodiment of this disclosure from another perspective; 
         FIG.  3    is a structural diagram of a first connecting member according to an embodiment of this disclosure; 
         FIG.  4    is a structural diagram of a second connecting member according to an embodiment of this disclosure; 
         FIG.  5    is a structural schematic diagram of a rotating mechanism according to an embodiment of this disclosure; 
         FIG.  6    is a structural schematic diagram of the bulb adaptor when a convex part is at a second position according to an embodiment of this disclosure; 
         FIG.  7    is a schematic diagram of relative positions of a first connecting member and a second connecting member according to an embodiment of the present application; and 
         FIG.  8    is a structural diagram of a convex part according to an embodiment of this disclosure. 
     
    
    
     Reference Number:  10  -Bulb Adaptor;  11  -Mounting Housing;  110  -Thread;  111  -First Mounting Cavity;  112  -Second Mounting Cavity;  113  -Clamping Groove ;  114  -Limiting Part;  115  -Sliding Groove;  12  -Rotating Mechanism;  121  -Rotating Member;  1211  -Sliding Part;  122  -Convex Part;  1221  -Live Contact Point;  1222  -Neutral Contact Point;  1223  -Live Contact;  1224  -Neutral Contact; 13-First Connecting Member;  131  -First Live Contact Part;  132  -First Supporting Part;  133  -First Metal Connecting Part;  134  -First Telescopic Connecting Member; 14-Second Connecting Member;  141  -Second Live Contact Part;  142  -Neutral Contact Part;  143  -Second Supporting Part;  144  -Second Metal Connecting Part;  145  -Second Telescopic Connecting Member;  15  -Plastic Isolation Plate. 
     DETAILED DESCRIPTION 
     In order to make the purposes, technical schemes and advantages of embodiments of this disclosure more clear, the technical schemes in the embodiments of this disclosure will be described clearly and completely with reference to the drawings in the embodiments of this disclosure; and it is Obvious that the described embodiments are part of the embodiments of this disclosure, but not all of them. The components of the embodiments of the application generally described and illustrated in the drawings herein can be arranged and designed in various different configurations. 
     Therefore, the following detailed description of the embodiments of the application provided in the drawings is not intended to limit the claimed scope of the application, but only shows selected embodiments of the application. On a basis of the embodiments in this application, all other embodiments obtained by the ordinary skilled in the art without any creative effort are within the protection scope of this application. 
     In the description of this application, it should be noted that the orientation or position relationships indicated by the terms such as “top”, “bottom”, “inner” and “outer” are based on the orientation or position relationships shown in the drawings, or the generally adopted orientation or position relationships when the products of this application are used are only for convenience of describing this application and for simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of this disclosure. In addition, the terms “first”, “second”, etc. are only used to distinguish descriptions, and cannot be understood as indicating or implying a relative importance. 
     In the description of this application, it should also be noted that unless otherwise specified and limited, the terms “providing”, “installing” and “connecting” should be understood in a broad sense, for example, it can be “fixedly connecting”, or “detachably connecting” or “integrally connecting”, or it can be “mechanically connecting” or “electrically connecting”, or it can be “directly connecting” or “indirectly connecting through an intermediate medium”, or it can be “communicating within two elements”. For those ordinary skilled in the art, the specific meanings of the above terms in this application can be understood according to specific situations. 
     A bulb adaptor  10  is provided in an embodiment of the disclosure, which includes a mounting housing  11 , a rotating mechanism  12 , a first connecting member  13  and a second connecting member  14  with cavities inside. 
     Referring to  FIGS.  1  and  2   , the mounting housing  11  is a cylindrical structure and is provided with a first opening and a second opening oppositely disposed. As shown in  FIG.  1   , the first opening is located at top and the second opening is located at bottom. An inner wall of the mounting housing  11  is provided with threads  110  at the first opening, and the inner wall of the mounting housing  11  is provided with two first mounting cavities  111  oppositely disposed and two second mounting cavities  112  oppositely disposed, the first mounting cavities  111  and the second mounting cavities  112  are arranged at intervals, and the mounting housing  11  is further provided with a clamping groove  113  for matching with a clamping joint of the bayonet bulb. The threads  110  are mainly used for matching with the threaded  110  bulb, and the clamping groove  113  is mainly used for matching with the bayonet bulb, so that two kinds of bulbs can be fixed. 
     Referring to  FIGS.  1  to  3   , the first connecting member  13  includes a convex first live contact part  131  and two first metal connecting parts  133 . One of the first metal connecting parts  133  is electrically connected with the threads  110  through a wire, and the other of the first metal connecting parts  133  is electrically connected with the first live contact part  131  through a wire. 
     Optionally, the first connecting member  13  includes a first supporting part  132  connected to both ends of the first live contact part  131 , a bottom of the first supporting part  132  is provided with the first metal connecting part  133 , two first supporting parts  132  are respectively provided in the two first mounting cavities  111 , and the first supporting part  132  is connected with the mounting housing  11  through a first telescopic connecting member  134 . It should be noted that the first connecting member  13  is made of insulating material except the first live contact part  131  and the first metal connecting part  133 . 
     For example, the first telescopic connecting member  134  is a spring, and the spring can be compressed when a bottom end of the first supporting part  132  is subjected to a force to make the first supporting part  132  move upward. When the force at the bottom end of the first supporting part  132  is removed, the spring changes from a compressed state to a normal state, so that the first supporting part  132  moves downward. In other embodiments, the first telescopic connecting member  134  may also be an elastic piece. 
     Referring to  FIGS.  1 ,  2  and  4   , the second connecting member  14  includes a convex second live contact part  141 , a neutral contact part  142  and two second metal connecting parts  144 , and the two second metal connecting parts  144  are electrically connected with the second live contact part  141  and the neutral contact part  142  by a wire respectively. The second connecting member  14  is arranged crosswise with the first connecting member  13 , so that the first live contact part  131  is staggered with both the second live contact part  141  and the neutral contact part  142 . 
     Optionally, the second connecting member  14  includes two second supporting parts  143  respectively connected with the second live contact part  141  and the neutral contact part  142 , and a bottom end of the second supporting part  143  is provided with a second metal connecting part  144 . The two second supporting parts  143  are respectively arranged in the two second mounting cavities  112 , and the second supporting parts  143  are connected with the mounting housing  11  through the second telescopic connecting member  145 . The second connecting member  14  is arranged crosswise with the first connecting member  13 , so that the first live contact part  131  is staggered with both the second live contact part  141  and the neutral contact part  142 . It should be noted that the second connecting member  14  is made of insulating material except the second live contact part  141 , the neutral contact part  142  and the second metal connecting part  144 . 
     For example, the second telescopic connecting member  145  is a spring, and the spring can be compressed when a bottom end of the second supporting part  143  is subjected to a force to make the second supporting part  143  move upward. When the force at the bottom end of the second supporting part  143  is removed, the spring changes from a compressed state to a normal state, so that the second supporting part  143  moves downward. In other embodiments, the second telescopic connecting member  145  may also be an elastic piece. 
     Referring to  FIGS.  2  and  5   , the rotating mechanism  12  includes a rotating member  121  and a convex part  122  fixed to the rotating member  121 . The convex part  122  has a first position and a second position. The first position is where the convex part  122  is in electrical contact with the two first metal connecting parts  133  (see  FIGS.  1  and  2   ), and the second position is where the convex part  122  is in electrical contact with the two second metal connecting parts  144  (see  FIG.  6   ). The rotating member  121  is slidably connected with the mounting housing  11 , so that the rotating member  121  can rotate along a circumferential direction of the mounting housing  11 , and the convex part  122  moves between the first position and the second position. 
     In some embodiments, the convex part  122  is arranged at the second opening and extends along a radial direction of the mounting housing  11 , two ends of the convex part  122  along an extending direction are provided with a live contact point  1221  and a neutral contact point  1222 , a side wall of the convex part  122  away from the second opening is connected with a live contact  1223  and a neutral contact  1224 , the live contact  1223  is electrically connected with the live contact point  1221 , and the neutral contact  1224  is electrically connected with the neutral contact point. The live contact  1223  and the neutral contact  1224  of the protrusion  122  are used to connect with a live wire and a neutral wire in an arranged circuit. 
     The first position is where the live contact point  1221  and the neutral contact point  1222  of the convex part  122  are electrically contacted with the two first metal connecting parts  133  respectively (see  FIGS.  1  and  2   ), and the second position is where the live contact point  1221  and the neutral contact point  1222  of the convex part  122  are electrically contacted with the two second metal connecting parts  144  respectively (see  FIG.  6   ). 
     When the convex part  122  is located at the first position, the convex part  122  supports the two first supporting parts  132 , and makes the live contact point  1221  and the neutral contact point  1222  of the convex part  122  electrically contact with the two first metal connecting parts  133  respectively. At this time, the threaded  110  bulb is screwed in from the first opening to form a threaded  110  connection with the threads  110  of the inner wall of the mounting housing  11 , the threads  110  of the mounting housing  11  is electrically connected with one of the first metal connecting parts  133 , and the other of the first metal connecting parts  133  is electrically connected with the first live contact part  131 , and the threads  110  of the mounting housing  11  serves as a neutral connecting part. When the threaded  110  bulb is screwed in, a live wire of the threaded  110  bulb is connected with the convex first live contact part  131  and a neutral wire of the threaded  110  bulb is connected with the threads  110  of the mounting housing  11 , so that the threaded  110  bulb can be lit. 
     When the bayonet bulb is to be matched and installed, the rotating member  121  moves along the circumferential direction of the mounting housing  11 , the convex part  122  moves out of supporting the two first supporting parts  132 , the live contact point  1221  and the neutral contact point  1222  of the convex part  122  are disconnected with the two first metal connecting parts  133 , and a position of the first connecting member  13  lowers along a height direction of the mounting housing  11 . When the rotating member  121  is rotated to the second position of the convex part  122 , the convex part  122  supports the two second supporting parts  143 , and makes the live contact point  1221  and the neutral contact point  1222  of the convex part  122  electrically contact with the two second metal connecting parts  144 , respectively. A position of the second connecting member  14  rises along the height direction of the mounting housing  11 . In this process, because the second connecting member  14  is arranged crosswise with the first connecting member  13 , the first live contact part  131  is staggered with both the second live contact part  141  and the neutral contact part  142 , so that the first live contact part  131  does not interfere with the second live contact part  141  and the neutral contact part  142  in a lowering or rising process. In the first position, the first live contact part  131  is located above the second live contact part  141  and the neutral contact part  142 , and in the second position, the second live contact part  141  and the neutral contact part  142  are located above the first live contact part  131 . Optionally, the second connecting member  14  and the first connecting member  13  are arranged in a cross. 
     When the convex part  122  is at the second position, the bayonet bulb is matched with a clamping groove  113  of the mounting housing  11  to fix the bulb, the live wire and the neural wire of the bayonet bulb are respectively connected with the convex second live contact part  141  and the neutral contact part  142 , so that the threaded  110  bulb can be lit. 
     The bulb adaptor  10  of the embodiment of the disclosure can be matched and used with the threaded  110  bulb or the bayonet bulb respectively only by rotating the rotating part, which is convenient to use. 
     Referring to  FIG.  2   , in a feasible embodiment, a plastic isolation plate  15  is provided within an inner space of the mounting housing  11 , the plastic isolation plate  15  is defined with a plurality of through holes, and the plurality of through holes are respectively arranged corresponding to the first live contact part  131 , the second live contact part  141  and the neutral contact part  142 . 
     When the bulb is matched with the bulb adaptor  10 , whether it is a threaded  110  bulb or a bayonet bulb, the live wire or the neural wire of the bulb can only contact with the first live contact part  131 , the second live contact part  141  and the neutral contact part  142  through the through holes due to action of the plastic isolation plate  15 , with a more accurate connection. 
     Referring to  FIGS.  1 ,  5  and  7   , for example, an inner wall of the rotating member  121  is provided with a sliding part  1211 , and an outer wall of the mounting housing  11  is provided with a limiting part  114  with a sliding groove  115 , the sliding groove  115  extends along the circumferential direction of the mounting housing  11 , and the sliding part  1211  is slidably matched with the sliding groove  115 . 
     The sliding part  1211  can move along the circumferential direction of the mounting housing  11  through sliding fit between the sliding part  1211  and the sliding groove  115 . The sliding groove  115  limits a moving path of the sliding part  1211 , so that the sliding part  1211  moves along the circumferential direction of the mounting housing  11  more smoothly. Optionally, the sliding part  1211  is a triangular protrusion. Two sides of the triangle can cooperate with the sliding groove  115  and both sides are limited, so that the sliding part  1211  can move along the circumferential direction of the mounting housing  11  more smoothly. 
     Optionally, the sliding groove  115  is provided with an engaging port (not shown in the figure), the sliding part  1211  is provided with an engaging joint which can be snapped with the engaging port (not shown in the figure), and the engaging port is arranged correspondingly to the first supporting parts  132  and the second supporting parts  143 . When the rotating part is rotated so that the convex part  122  is located at the first position, the engaging joint of the sliding part  1211  matches with the engaging port of the corresponding first supporting part  132  of the sliding groove  115 , and the sliding part  1211  stops moving. At this time, the sliding part  1211  can only move in a opposite direction. When the rotating part is rotated in the opposite direction so that the convex part  122  is located at the second position, the engaging joint of the sliding part  1211  engages with the engaging port of the corresponding second supporting part  143  of the sliding groove  115 , and the sliding part  1211  stops moving. With the sliding slot  115  being provided with the engaging port, the sliding part  1211  is provided with the engaging joint which can be snapped with the engaging port, and the engaging port is arranged correspondingly to the first supporting parts  132  and the second supporting parts  143 , so that the convex part  122  can be fixed at the first position and the second position respectively, with a more accurate positioning. 
     In a feasible embodiment, a cross section of the convex part  122  along a thickness direction is trapezoidal (see  FIG.  8   ). The convex part  122  extends in a radial direction of the mounting housing  11 , and its cross section along the thickness direction is trapezoidal, so that when the convex part  122  is at the first position, its top can jack up the first supporting part  132 , and when the rotating part is rotated to move the convex part  122  from the first position to the second position, an inclined surface of the trapezoid can easily jack up the second supporting part  143 . 
     Illustratively, ends of the first metal connecting part  133  and the second metal connecting part  144  are both arc-shaped. In this way, resistance for the convex part  122  when moving between the first position and the second position is small, which facilitates movement of the convex part  122 . 
     Further, in a feasible embodiment, the live wire contact  1223  and the live wire contact  1221  are electrically connected through a wire, and an infrared remote control switch is provided on the wire. Since the bulb adaptor  10  is provided with the infrared remote control switch, the infrared remote control switch can be remotely controlled by a remote controller to control switching and brightness of the bulb, which is convenient for operation. 
     In another feasible embodiment, a control switch can be provided on the wire, which has a Bluetooth module. With a wireless connection between Bluetooth on a mobile phone and the Bluetooth module of the bulb adaptor  10 , the bulb can be controlled by the mobile phone, which is convenient for operation. 
     To sum up, the bulb adaptor  10  of the embodiment of the present disclosure can be matched and used with the threaded bulb  110  or the bayonet bulb respectively only by rotating the rotating part to make the convex part  122  move between the first position and the second position, which is convenient to use. 
     The above is only preferred embodiments of this application, and is not intended to limit this application, and modifications and variations can be made in this application for those skilled in the art. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of this disclosure shall be encompassed within the protection scope of this disclosure.