Lock and locking device

A lock includes a lock housing, a cylinder assembly rotatably arranged in the lock housing and a locking keyless assembly connected to the cylinder assembly in a transmission way. The cylinder assembly includes a cylinder core and a tailpiece unit, a first clutch mechanism is provided between the cylinder core and the tailpiece unit, and a second clutch mechanism is provided between the locking keyless assembly and the tailpiece unit. When the second clutch mechanism is engaged, the locking keyless assembly is movable relative to the lock housing in a first direction under a driving of an external force for locking, and the cylinder core and the tailpiece unit rotate along with the locking keyless assembly. When the external force on the locking keyless assembly is withdrawn, the locking keyless assembly moves in an opposite second direction opposite, so that the second clutch mechanism switches to a disengaged state.

TECHNICAL FIELD

The present application relates to the technical field of locks, in particular to a lock and a locking device that can achieve keyless locking.

BACKGROUND

Locks are widely used in our daily lives and work, effectively protecting our property. However, the locks in the prior art require the use of a key for both locking and unlocking, which to some extent makes it inconvenient for users.

How to achieve keyless locking of the existing locks has become an urgent technical problem to be solved.

SUMMARY

In view of the shortcomings of the prior art, the present application provides a lock and a locking device that can achieve keyless locking.

On one aspect, the present application provides a lock including a lock housing, a cylinder assembly being rotatably arranged in the lock housing and a locking keyless assembly being connected to the cylinder assembly in a in transmission way, the cylinder assembly including a cylinder core and a tailpiece unit, a first clutch mechanism being provided between the cylinder core and the tailpiece unit, and a second clutch mechanism being provided between the locking keyless assembly and the tailpiece unit. When the second clutch mechanism is in an engaged state, the locking keyless assembly is movable relative to the lock housing in a first direction under a driving of an external force for locking, the cylinder core and the tailpiece unit rotate along with the locking keyless assembly synchronously; when the external force acting on the locking keyless assembly is withdrawn, the locking keyless assembly moves in a second direction opposite to the first direction, so that the second clutch mechanism switches to a disengaged state.

On another aspect, the present application provides a locking device that includes a first object and a second object, wherein the first object is provided with the above lock, the lock is locked with the second object when it is in a locked state and separated from the second object when it is in an unlocked state.

Compared with the prior art, the lock provided by the present application can achieve key locking and keyless locking by means of the first clutch mechanism and the second clutch mechanism, making it more convenient to use.

IN THE DRAWINGS

DESCRIPTION OF THE EMBODIMENTS

For better understanding the present application, a more detailed description of the present application will be given below with reference to the append drawings. The append drawings exemplify one or more embodiments of the present application to make the understanding of the disclosed technical solutions more accurate and thorough. However, it should be understood that the present application can be implemented in various forms, not limited to the embodiments described below.

The same or similar labels in the append drawings of the present application correspond to the same or similar components. In the description of the present application, it should be understood that terms such as “up”, “down”, “left”, “right” indicating an oriental or positional relationship based on the oriental or positional relationship shown in the append drawings, which is only intended to facilitate the description of the present application and simplify the description, not to indicate or imply that the apparatus or component referred must have a specific orientation, is constructed and operated in a specific orientation. Therefore, the terms describing the position relationship in the append drawings are only for illustrative purposes, and cannot be understood as a limitation to the present application. For those ordinary skilled in the art, the specific meanings of the above terms may be understood according to specific circumstances.

In addition, descriptions related to “first”, “second” and the like in the embodiments of the present application are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature limited to “first” and “second” may explicitly or implicitly includes at least one of this feature. In addition, “and/or” in the whole specification means that includes three parallel schemes. Taking “A and/or B” as an example, it includes scheme A, scheme B, or scheme that including both A and B.

In addition, technical solutions of various embodiments may be combined with each other, but must be based on what those ordinary skilled in the art can achieve. When the combination of technical solutions conflicts or cannot be achieved, it should be considered that the combination of such technical solutions does not exist and is not within the scope of the present application.

The present application provides a lock, and a specific embodiment of the lock100is shown inFIG.1, which includes a lock housing10, a cylinder assembly30arranged in the lock housing10and a locking keyless assembly50connected to the cylinder assembly30in a transmission way.

The present application further provides a locking device, and a specific embodiment of the locking device is shown inFIG.2andFIG.3, which includes a first object210, a second object220and the lock100. The lock100is mounted on the first object210, and cooperates with the second object220to enable the two objects210and220to be locked together or separated from each other. Specifically, the lock100has an unlocked state and a locked state. In the locked state, as shown inFIG.3, the first object210on which the lock100is mounted is locked with the second object220. For example, when the lock100is mounted onto a door/window, the door/window can be locked to a door frame/window frame, thereby creating a private space. For another example, when the lock100is mounted onto the cabinet door, the cabinet door can be locked to a cabinet body, thereby creating a safe space for storing valuable items, confidential documents, etc. In the unlocked state, as shown inFIG.2, the first object210on which the lock100is mounted can be opened relative to the second object220, such as opening the door or window for ventilation, opening a drawer for storing or picking up files, etc.

Please also referring toFIGS.4-6, the cylinder assembly30acts as a basic part of the lock100, can cooperate with a key (not shown) for locking and unlocking of the lock100. In this embodiment, the cylinder assembly30includes a cylinder core32, a tailpiece unit34and a locking member36. Specifically, the cylinder core32as a whole is column-shaped, and is rotatably arranged in the lock housing10. A keyway321is defined in a central portion of the cylinder core32for inserting of a matching key therein. After the key is inserted into the keyway321, forcefully rotating the key can drive the cylinder core32to rotate. The tailpiece unit34is arranged at an inner end of the cylinder core32along an axial direction, and drives the locking member36to rotate to a locked position or an unlocked position under the driving of the cylinder core32, in turn driving a locking body, a locking bolt and the like connected to the locking member36to move back and forth, thereby achieving locking and unlocking of the lock100. The locking member36may be formed separately and then assembled to the tailpiece unit34, or may be integrally formed with the tailpiece unit34. In the illustrated embodiment, the locking member36is a locking hook. According to different orientations of the locking hook of the locking member36, the locking member36has different rotation directions during the locking operation.

Please also referring toFIG.7, a first clutch mechanism40is provided between the cylinder core32and the tailpiece unit34. The first clutch mechanism40includes a first driving portion42and a first clutch portion44cooperating with each other. In this embodiment, the first driving portion42is provided at an end of the cylinder core32facing towards the tailpiece unit34, and the first clutch portion44is provided at an end of the tailpiece unit34facing towards the cylinder core32. The first driving portion42includes opposite first driving face C1and second driving face D1. The first clutch portion44defines an arc-shaped groove441, and a first clutch face C2and a second clutch face D2are formed at two circumferential sides of the arc-shaped groove441of the first clutch portion44, respectively. Preferably, the first driving portion42is a driving pin that extends into the arc-shaped groove441of the first clutch portion44, with the first driving face C1corresponding to the first clutch face C2and the second driving face D1corresponding to the second clutch face D2. The first driving portion42can rotate relative to the first clutch portion44in the arc-shaped groove441, making the first driving face C1abut or separate from the first clutch face C2, and the second driving face D1abut or separate from the second clutch face D2.

When the first driving face C1and the first clutch face C2of the first driving portion42abut each other, the first clutch mechanism40is in a first engaged state, and the cylinder core32can drive the tailpiece unit34to rotate in a first direction (such as counterclockwise direction). When the second driving face D1and the second clutch face D2abut each other, the first clutch mechanism40is in a second engagement state, and the cylinder core32can drive the tailpiece unit34to rotate in a second direction (such as clockwise direction). When the first driving face C1is separated from the first clutch face C2and the second driving face D1is separated from the second clutch face D2, the first clutch mechanism40is in a disengaged state, and the tailpiece unit34remains stationary during rotation of the cylinder core32, that is, the cylinder core32is idling. Preferably, a central angle corresponding to a space (i.e., the arc-shaped groove441) between the first clutch face C2and the second clutch face D2is about 180 degrees. The present application provides the first clutch mechanism40between the cylinder core32and the tailpiece unit34, so that the cylinder core32and the tailpiece unit34have two states of engaged and disengaged. Only in the engaged state, the cylinder core32can drive the tailpiece unit34to rotate for locking or unlocking.

In some embodiments, the first driving portion42may be formed separately and then assembled to the cylinder core32, or may be integrally formed with the cylinder core32. The first clutch portion44may be formed separately and then assembled to the tailpiece unit34, or may be integrally formed with the tailpiece unit34.

Please also referring toFIG.8, the locking keyless assembly50is configured for keyless locking of the lock100, that is, locking the lock100without inserting a key into the cylinder core32. The locking keyless assembly50includes an operating member52and a reset member54, wherein the operating member52may be a knob and the like, and the reset member54may be a coil spring, torsion spring, etc.

A second clutch mechanism60is provided between the operating member52and the tailpiece unit34, and includes a second driving portion62and a second clutch portion64cooperating with each other. The second driving portion62is connected to the locking keyless assembly50, and the second clutch portion64is connected to the tailpiece unit34. By means of the second clutch mechanism60, the locking keyless assembly50and the tailpiece unit34have two states of disengaged and engaged. In the engaged state, rotation of the operating member52can drive the tailpiece unit34and the locking member36to rotate for locking. In this way, when the lock100of the present application is in use, locking can be achieved by rotation of the cylinder core32, the tailpiece unit34and the locking member36driven by the key, or by rotation of the tailpiece unit34and the locking member36driven by the operating member52, that is, keyless locking is achieved, improving the convenience of operation.

The second driving portion62is an arc-shaped block, and a third driving face A1and a fourth driving face B1are formed at two circumferential sides thereof. The second clutch portion64is also an arc-shaped block, and a third clutch face A2and a fourth clutch face B2are formed at two circumferential sides thereof. The second driving portion62and the second clutch portion64are coaxial and have the same size, that is, are located on a same ring. The third driving face A1and the third clutch face A2face towards each other, and the fourth driving face B1and the fourth clutch face B2face towards each other. When the operating member52rotates, it can make the third driving face A1abut or separate from the third clutch face A2, or make the fourth driving face B1abut or separate from the fourth clutch face B2. Preferably, a central angle corresponding to a circumferential length of the second driving portion62or the second clutch portion64is about 90 degrees.

One end of the reset member54is connected to the operating member52, and another end of the reset member54is connected to a fixed member, such as the lock housing10. When the operating member52rotates relative to the lock housing10under an action of an external force, the reset member54is compressed or stretched. When the external force applied on the operating member52is withdrawn, the reset member54restores deformation and pushes the operating member52to rotate in an opposite direction for reset. Preferably, two position portions59are provided on the operating member52and the lock housing10, respectively, and abut against two ends of the reset member54or connected to the two ends of the reset member54by plugging, respectively. When the operating member52rotates relative to the lock housing10, one end of the reset member54abutting the operating member52rotates along with the rotary lock housing10, resulting in deformation and generating a reset elastic force that causes the operating member52to reset in an opposite direction.

The cylinder core32is arranged in the operating member52, and is preferably frictionally matched with the operating member52, so that the cylinder core32can be fixed in the operating member52to rotate along with the operating member52synchronously when there is no external force applied thereon, and rotate relative to the cylinder core32when the external force (such as twisting the key) is applied thereon. Preferably, a cylinder shell56is provided at a central portion of the operating member52for mounting the cylinder core32, and an outer end face of the operating member52is provided with a through hole529at a position corresponding to the cylinder shell56, so that the keyway321of the cylinder core32can be exposed. Slidable latching pins may be provided on the cylinder core32and/or cylinder shell56with lengths designed corresponding to a tooth shape of the key. By inserting the key, the latching pins slide to unlock, enabling the locking cylinder32to rotate relative to the cylinder shell56.

Taking counterclockwise rotation for locking and clockwise rotation for unlocking as an example, an operation process of the lock100of the present application is described as below:

In an embodiment, as shown inFIG.9, the lock100is in the unlocked state initially, the first clutch mechanism40is in the engaged state, and the second clutch mechanism60is in the engaged state. Specifically, the first driving face C1of the first driving portion42abuts the first clutch face C2of the first clutch portion44; and the second driving face D1is away from the second clutch face D2with a central angle corresponding to a space therebetween is about 180 degrees, i.e., half a circle. The third driving face A1of the second driving portion62abuts the third clutch face A2of the second clutch portion64; and the fourth driving face B1is away from the fourth clutch face B2with a central angle corresponding to a space therebetween is about 180 degrees, i.e., half a circle.

Under the unlocked state, the operating member52is rotated for locking, as shown inFIG.9a, a force is applied to rotate the operating member52counterclockwise for a certain angle (such as 90 degrees), and the cylinder core32inside the operating member52rotates along with the operating member52synchronously. Due to the abutment between the third driving face A1and the third clutch face A2of the second clutch mechanism60, rotation of the operating member52will push the tailpiece unit34and the locking member36to rotate along therewith counterclockwise for a certain angle to reach the locked position. In this situation, the locking member36is locked with the second object220, and the lock100is in the locked state. During this process, the operating member52, the cylinder core32, the tailpiece unit34and the locking member36rotate synchronously, and the first clutch mechanism40and the second clutch mechanism60remain in the engaged state. However, due to the rotation of the operating member52, the reset member54is compressed or stretched to generate elastic deformation.

After the lock100is locked by the operating member52, the operating member52is released. As shown inFIG.9b, the reset member54restores deformation and pushes the operating member52to rotate reversely (i.e. clockwise) to reset, causing the third driving face A1to separate from the third clutch face A2, thereby the second clutch mechanism60switching to the disengaged state. In this situation, a central angle corresponding to a space between the third driving face A1and the third clutch face A2is about 90 degrees. During the automatic reset process of the operating member52, the cylinder core32rotates reversely along with the operating member52to reset, the locking gauge unit34and the locking member36remain stationary, the locking gauge unit34and the cylinder core32generate relative rotation, and the first driving face C1is separated from the first clutch face C2. In this situation, a central angle corresponding to the a between the first driving face C1and the first clutch face C2is greater than 90 degrees, and the first clutch mechanism40switches to the disengaged state.

When the lock100needs to be unlocked, as shown inFIG.9c, the key is inserted into the keyway321of the lock32. Firstly, the key drives the lock32to rotate a first angle (such as 90 degrees) in the second direction (i.e. clockwise direction), so that the second driving face D1of the first driving portion42contacts the second clutch face D2of the first clutch portion44, thereby the first clutch mechanism40switching to the engagement state. Then, as shown inFIG.9d, the key rotates continuously in the second direction for a second angle (such as 90 degrees), so that the cylinder core32drives the tailpiece unit34and the locking member36to rotate synchronously to reach the unlocked position. During this process, the operating member52remains stationary, the tailpiece unit34and the locking member36rotate about 90 degrees relative to the operating member52, the third driving face A1returns to the position where it contacts the third clutch face A2, and the second clutch mechanism60returns to the engaged state.

After the lock100is unlocked, the key can be taken off. Before removing the key, the key is rotated in the first direction, i.e., counterclockwise, for an angle that is a sum of the first angle and the second angle, which is 180 degrees in this embodiment. The cylinder core32rotates along with the key, causing the first driving portion42to move away from the second clutch face D2and return to a state that the first drive surface C1abuts the first clutch face C2, thereby the first clutch mechanism40returning to the engaged state. During this process, the operating member52, the tailpiece unit34and the locking member36remain stationary, and the third driving face A1remains in contact with the third clutch face A2, that is the second clutch mechanism60remaining in the engaged state, and the lock100in whole returning to the initial state as shown inFIG.9.

It should be understood that the lock100in the unlocked state may also be locked by the key. In this situation, the key is inserted into the keyway321of the cylinder core32and rotated counterclockwise, causing the first driving face C1of the first driving portion42to push the first clutch face C2of the first clutch portion44to rotate, in turn driving the tailpiece unit34and the locking member36to rotate counterclockwise to the locked position. During this process, the operating member52remains stationary, the locking unit34rotates relative to the operating member52, and the third driving face A1separates from the third clutch face A2, thereby the second clutch mechanism60switching to the disengaged state.

For the lock100of the present application, it can achieve counterclockwise rotation for unlocking and clockwise rotation for locking by slightly adjusting its initial state, specifically:

In the unlocked state, as shown inFIG.9e, the first clutch mechanism40is in an engaged state, but is adjusted to make the second drive surface D1of the first driving portion42abut the second clutch face D2of the first clutch portion44; and the second clutch mechanism60is in an engaged state, but is adjusted to make the fourth drive surface B1of the second driving portion62abut the fourth clutch face B2of the second clutch portion64. The subsequent locking and unlocking process is similar to the above embodiment. As shown inFIG.9f, keyless locking is achieved by the abutment of the fourth driving face B1and the fourth clutch face B2of the second clutch mechanism60, and the engaged state of the first clutch mechanism40is switched to the contact of the first driving face C1and the first clutch face C2when the lock100is unlocked by the key, which will not be further described here.

In this embodiment, the tailpiece unit34includes a tailpiece341and a first transmission member343. The first transmission member343in whole is column-shaped, with a first connecting hole345and a second connecting hole347defined at two ends thereof, respectively. The first connecting hole345is configured for connecting the tailpiece341, and the second connecting hole347is configured for connecting the locking member36. Specifically, one end of the first transmission member343with the second connecting hole347extends beyond the lock housing10, and the locking member36is detachably connected to the second connecting hole347through screws, rivets, etc. One end of the tailpiece341is inserted into the first connecting hole345, and a clearance fit or an interference fit may be formed therebetween. In some embodiments, the tailpiece341and the first transmission member343may also be an integrated structure. Another end of the tailpiece341forms the first clutch portion44, which abuts an end face of the cylinder core32. The second clutch portion64is provided on an end face of the first transmission portion343facing towards the cylinder core32, and extends integrally and outwardly from the first transmission portion343along the axial direction. In other embodiments, the second clutch portion64may also be formed separately and then assembled to the first transmission portion343.

In another embodiment shown inFIG.10andFIG.10a, the tailpiece unit34includes a tailpiece341and a first transmission member343connected to the tailpiece341. The first clutch portion44is provided on the tailpiece341, and the second clutch portion64is provided on the first transmission member343. The difference is that one end of the tailpiece341extends outwardly through the first transmission member343and the lock housing10, and is connected to a locking bolt, a locking body and the like through a transmission mechanism.

In this embodiment, the operating member52includes a knob521and a second transmission member523. The knob521is cylindrical-shaped with an open end and a closed end. The cylinder shell56and cylinder core32are arranged a the central portion of the knob521, and the through hole529is defined in the closed end of the knob521at a position corresponding to the keyway321of the cylinder core32. A plurality of connecting poles525extends from the closed end of the knob521towards the open end, and a plurality of fixing holes527is defined in the second transmission member523correspondingly. Fixing components, such as screws extend through the fixing holes527and then are fixed into the connecting pole525threadedly, thereby connecting the second transmission member523to the knob521. In some embodiments, the second transmission member523and the knob521may also be formed integrally.

In this embodiment, the cylinder shell56is formed separately and then assembled into the knob521, specifically assembled into a space surrounded by the connecting poles525. Preferably, the cylinder shell56protrudes a latching portion58into a space between two neighboring connecting poles525, so as to form a position limit in a circumferential direction for the cylinder shell56and the knob521, thereby the cylinder shell56and the knob521being capable of rotating synchronously after being assembled. In some embodiments, the cylinder shell56and knob521may also be formed integrally.

As shown inFIG.5, the lock housing10includes a mounting seat12and a sleeve14extending outwardly from a central portion of the mounting seat12in a direction away from the operating member52. The knob521is mounted around the mounting seat12, the second transmission member523is arranged in the mounting seat12, the reset member54is mounted around the second transmission member523, and the position portions59are provided on the second transmission member523and the mounting seat12, respectively. In this embodiment, as shown inFIG.4andFIG.6, a step121is provided on an inner wall surface of an end of the mounting seat12facing towards the knob521for providing a position limit to the second transmission member523in the axial direction, so that the second transmission member523cannot be detached from the lock housing10, and in turn the whole operating member52cannot be detached from the lock housing10. Preferably, a bearing16is provided between the mounting seat12and the second transmission member523to reduce a friction therebetween during relative rotation. Preferably, a wear-resistant gasket18is provided between the step121of the mounting seat12and the second transmission member523, further reducing wear.

The first transmission member343is arranged in the sleeve14with two ends thereof extending beyond the sleeve14. The tailpiece unit34extends through the second transmission member523to connect the first transmission member343. The second transmission member523surrounds a corresponding end of the first transmission member343and protrudes radially and inwardly to form the second driving component62, which cooperates with the second clutch component64. In some embodiments, the second driving portion62may also extend axially and outwardly from the second transmission member523; the second clutch portion64may also extend radially and outwardly from the first transmission member343; or, the second driving portion62and the second clutch portion64both extend axially or radially. As long as the second driving portion62and the second clutch portion64are located on the same ring, contact and separation of them may be achieved by relative rotation, allowing the second clutch mechanism60to switch between the disengaged state and the engaged state.

Preferably, threads19are provided on an outer circumferential surface of the sleeve14, and the lock100can be installed on the first object210, such as a door or window, by screwing.

The lock100of the present application can achieve key locking and keyless locking by means of the first clutch mechanism40and the second clutch mechanism60, making it more convenient to use. Moreover, by means of adjusting the initial state of the second clutch mechanism60, the lock100can be set to rotate counterclockwise to lock or clockwise to lock, which allows that the lock100of the present application can be installed on the first object210and operate normally without the need for component replacement, regardless of whether the first object210is rotated left or right to open. Correspondingly, the locking member36may have two states too. As shown in the drawings, the locking member36is hook-liked, and its hook orientation may be left or right, which can be achieved by flipping the locking member36, thereby matching with two usage states of left open and right open, respectively. The lock100in whole is simple in structure, easy to operate, and has good universality.

Referring toFIG.11, in an optional embodiment, the lock100may further include a locking body80, which may be driven, for example by the tailpiece341. In this situation, the tailpiece341may be a rod-shaped structure, with one end thereof being connected to a driving connecting part82of the locking body80. The lock100is arranged on the first object210, driving a locking member84of the locking body80to move for locking. In this embodiment, the locking member84is a dead bolt, which means that the locking member does not include an inclined surface for a latch bolt. For locking or unlocking the lock with the dead bolt, a control component of the lock must be operated to control the extension or retraction of the dead bolt. Compared to this, in case of with a latch bolt, it is generally only necessary to make an object abut and push the inclined surface of the latch bolt along a direction perpendicular to an extension of the latch bolt to push the latch bolt back. Therefore, compared to the latch bolt, the safety of the dead bolt is higher.

Referring toFIG.12, in an optional embodiment, the lock100includes a lock housing a cylinder assembly30arranged in the lock housing10, an locking keyless assembly50connected to the cylinder assembly30in a transmission way and a locking body80. The locking keyless assembly50includes a first operating member52and a second knob88, the first operating member52and the cylinder assembly30are arranged on one side of the first object110, and the second knob88is arranged on the other side of the first object110through a fixing seat86. The tailpiece341extends through the driving connecting part82of the locking body and is connected to the driving connecting part82in a transmission way. In this embodiment, the tailpiece341has a trapezoidal-shaped cross section, and the driving connecting part82is formed as a trapezoidal-shaped hole that generally corresponds to the trapezoidal-shaped cross section, so that the rotation of the tailpiece341can be transmitted to the locking body80through its matching shape with the driving connecting portion82.

In this embodiment, the driving connecting portion82of the locking body80has another setting state. In the setting state, the driving connecting portion82is rotated 180°. At this time, only the tailpiece341and the first transmission member343need to be rotated 180° and then installed. For the rotation of the first transmission member343, an additional adjusting rod may further be provided for auxiliary installation. The adjusting rod has an adjustment end that matches a shape of a receiving port of the first transmission member343and a rod thinner than the adjustment end, so that the adjustment end can pass through the driving connecting portion82of the locking body80and rotate, and the thinner rod will not have a transmission connection with the driving connecting portion82. As a result, the adjusting rod can rotate the first transmission member343to adjust it to a desired setting state.

Similar to the above embodiments, locks with the additional setting state can be installed on the first object that opens left or right without the need to replace components of the lock. It can be understood that in order to clearly distinguish two setting states, the first transmission portion343, the driving connecting portion82and the locking member84may all be provided with markings to distinguish the two installation states, thereby preventing wrong installation.

During installing, firstly the lock housing10, the first transmission member343, the tailpiece unit31, the reset member54, the second transmission member523, the cylinder core32and the first operating member52are assembled in sequence, and then installed on one side of the first object210to be locked. The locking body80is inserted inside the first object210to be locked, wherein the locking member84of the locking body80can extend or retract relative to the first object210. Then, the tailpiece341is inserted and passed through the driving connecting portion82of the locking body80, so that the tailpiece341passes through the locking body80and is connected to the first transmission member343. In this step, if it is necessary to adjust the setting state of the first transmission member343, the adjusting rod may be used to adjust the first transmission member343. After inserting the tailpiece341into position, the fixing seat86and the second knob88can be sequentially installed on the other side of the first object210. The second knob88includes a receiving port for receiving the tailpiece341, which forms a transmission fit with the tailpiece341, thereby enabling the second knob88to control the locking and unlocking of the lock. In this embodiment, the locking member84of the locking body80is a dead bolt.

It should be noted that the above embodiments are preferred embodiments of the present application, and their description is more specific and detailed, but cannot be understood as a limitation of the present application. It should be pointed out that for those ordinary skilled in the art, without departing from the concept of the present application, modifications and improvements may be made, such as combining different features in various embodiments, which should fall within the scope of the present application.