CN210422182U - Lockset with knob positioning structure - Google Patents

Abstract

The lock with the knob positioning structure comprises a lock plate body and a knob rotatably arranged on the lock plate body; the knob comprises a handle exposed out of the lock plate body and a base shaft penetrating through the lock plate body and connected to the handle; still be provided with between quiet holding ring and the jam plate body and move the holding ring, move the holding ring and wear to overlap on the basic shaft and arrange and radially link with the basic shaft with sliding, still be provided with holding ring reset spring between jam plate body and the moving holding ring, thereby holding ring reset spring can promote moving the holding ring and reset and let and move the mutual butt of holding ring and quiet holding ring, be provided with the unsmooth tooth's socket that can each other lock on the butt face of their mutual butt, can fix a position each step of rotation with the help of unsmooth tooth's socket structure when moving the holding ring and radially rotating for quiet holding ring under the drive of basic shaft. This positions the base shaft to prevent the base shaft from rotating freely and affecting the operation of other components.

Description

Lockset with knob positioning structure

Technical Field

The invention relates to a lockset, in particular to a lockset with a knob positioning structure.

Background

For example, in the exterior locking scheme of a mechanical lock, it is common to provide a lock cylinder and a handle on an exterior locking panel, and a key matched with the mechanical lock cylinder drives a toggle arm of the mechanical lock cylinder to rotate to complete locking, or to adopt a simpler and more convenient mode, that is, to complete locking directly by lifting the handle. The common structure of the indoor locking scheme is that a back locking knob is arranged on an inner side locking panel, and the back locking knob is rotated to drive a back locking device in a lock body to act so as to limit the retraction of a lock bolt. Obviously, the rotation of the counter lock knob affects the action of the lock tongue, so the counter lock knob is required to be reliably and accurately positioned at the counter lock position and the unlocking position, and cannot be rotated arbitrarily. In chinese patent 201820040987.3, a door lock reverse locking knob device is proposed, which comprises a knob, a panel, a knob positioning block, and a spring plate, wherein the panel is provided with a knob hole, the knob comprises a knob post, and the knob post of the knob is inserted into the knob hole; the knob positioning block comprises four straight-side planes, adjacent straight-side planes are perpendicular to each other, a knob through hole is formed in the knob positioning block, and the knob positioning block is arranged on the knob column in a penetrating mode through the knob through hole; the spring piece is arranged in the spring clamping groove on the inner side of the panel, and is tightly attached to the straight-side plane of the knob positioning block in a normal state. The device can ensure that the counter lock knob can be accurately positioned, and the counter lock knob cannot be inclined in a horizontal or vertical state.

Disclosure of Invention

Analysis aiming at the 201820040987.3 patent shows that the door lock back locking knob device occupies more horizontal layout space and is not suitable for locks with limited horizontal layout space. Aiming at the technical problems in the prior art, the invention provides a lockset which can radially position a knob and reduce the occupied horizontal layout space. The lock with the knob positioning structure comprises a lock plate body and a knob rotatably arranged on the lock plate body; the knob is characterized by comprising a handle exposed outside the lock plate body, a base shaft penetrating through the lock plate body and connected to the handle, and a static positioning arm which is positioned on the inner side of the lock plate body and fixedly connected to the lock plate body through a connecting arm; the movable positioning arm is axially and slidably sleeved on the base shaft and is in radial linkage with the base shaft, and the movable positioning arm and the static positioning arm are arranged in the front-back direction in the axial direction of the base shaft; the movable positioning arm is characterized by further comprising a movable arm return spring, the movable arm return spring can drive the movable positioning arm to abut against the static positioning arm, a concave-convex abutting structure is arranged on an abutting working surface between the movable positioning arm and the static positioning arm, and when the movable positioning arm is driven by the base shaft to rotate radially relative to the static positioning arm, each step of rotation can be positioned by means of the concave-convex abutting structure.

The lock plate body belongs to a plate body part on a lock, can be an external decoration panel of the lock and also can be a part of a lock shell of the lock, and the lock shell is used for accommodating components such as a lock tongue and the like. In a general use scenario, the lock housing is arranged inside the exterior trim panel.

The static positioning arm is positioned on the inner side of the lock plate body and is fixedly connected to the lock plate body through a connecting arm, and the characteristic defines that the static positioning arm is a component which is statically arranged relative to the lock plate body, so that the static positioning arm can be a positioning base body for radially positioning the dynamic positioning arm. The static positioning arm and the connecting arm can be of a split structure or an integrated structure.

The movable positioning arm is axially and slidably sleeved on the base shaft and is in radial linkage with the base shaft. In this way, the movable positioning arm can slide axially on the base shaft and can rotate radially therewith when the base shaft rotates radially. But when the dynamic positioning arm is radially positioned, the dynamic positioning arm can in turn limit the radial rotation of the base shaft to position the base shaft.

Wherein the movable positioning arm and the static positioning arm are arranged in the axial direction of the base shaft in a front-to-back manner. This feature defines an axial layout position relationship between the movable positioning arm and the stationary positioning arm, such that the movable positioning arm and the stationary positioning arm are arranged along a direction substantially perpendicular to the lock plate body, rather than being arranged side by side along a direction parallel to the lock plate body, and specifically, the movable positioning arm may be located between the stationary positioning arm and the lock plate body, or the stationary positioning arm may be located between the movable positioning arm and the lock plate body. Therefore, the installation space occupied by the movable positioning arm and the static positioning arm in the direction parallel to the lock plate body can be reduced.

The movable arm return spring can apply acting force to the movable positioning arm in a pushing or pulling-back mode, so that the movable positioning arm can have a movement trend moving towards the direction of the static positioning arm, and the movable positioning arm can be abutted against the static positioning arm.

The concave-convex abutting structure is a structural body which is provided with concave-convex parts and is provided with a crest part, a trough part and an inclined surface connected between the crest part and the trough part. The movable positioning arm and the static positioning arm can be connected in a clamping mode through concave-convex matching of the concave-convex abutting structure, and therefore the movable positioning arm can be positioned in the radial direction. In the use process, when the handle applies radial torque to the base shaft to drive the movable positioning arm to rotate radially relative to the static positioning arm, the crest part on the movable positioning arm can abut against the inclined surface on the static positioning arm and axially slide in the direction far away from the static positioning arm under the guidance of the inclined surface, so that the clamping between the movable positioning arm and the static positioning arm is temporarily released. In the process, the movable positioning arm presses or stretches the movable arm return spring to deform the movable positioning arm return spring. When the crest on the movable positioning arm radially rotates to pass through the trough on the static positioning arm, the movable positioning arm axially slides towards the direction close to the static positioning arm under the driving of the movable arm return spring so as to be clamped on the static positioning arm again. In this way, the kinematic locating arm is rotated one step and positioned, while the base shaft is also positioned by the kinematic locating arm. If the torque continues to be applied to rotate the base shaft, the movable positioning arm will continue to rotate radially, but will be positioned once per rotation step.

According to the technical scheme, compared with the prior art, the invention has the beneficial technical effects that: first, since each step of rotation of the movable positioning arm can be positioned by means of the concave-convex abutting structure, the base shaft can be positioned to prevent the base shaft from rotating freely to affect the operation of other components, and a single step rotation angle of the base shaft, such as 90 degrees of rotation, can also be determined by means of the concave-convex abutting structure. In addition, because the movable positioning arm and the static positioning arm are axially arranged, the installation space occupied by the movable positioning arm and the static positioning arm in the direction parallel to the lock plate body can be reduced, and more installation space can be provided for other functional components.

The layout positions of the movable arm return spring can be various, and the further technical scheme can be that the movable arm return spring is arranged between the movable positioning arm and the lock plate body; or the movable arm return spring is arranged between the movable positioning arm and the static positioning arm; further alternatively, the boom return spring is provided between the dynamic positioning arm and the tip end portion of the base shaft.

According to a further technical scheme, an anti-rotation inserting mechanism is arranged between the connecting arm and the static positioning arm and comprises a positioning plug and a positioning hole, the cross section of the positioning plug and the cross section of the positioning hole are non-circular and are matched with each other, and the positioning plug and the positioning hole are respectively arranged on the connecting arm and the static positioning arm. Wherein, the non-circular shape can be square, hexagonal, etc. The static positioning arm is prevented from rotating radially through the inserting structure of the positioning plug and the positioning hole. In this scheme, a split structure is arranged between the connecting arm and the static positioning arm, and the movable positioning arm and the movable arm return spring can be conveniently arranged between the movable positioning arm and the lock plate body.

The further technical scheme can also be that the static positioning arm is provided with an annular hole, and the top end part of the base shaft is inserted into the annular hole and can rotate in the annular hole.

The device further comprises a triggering device capable of rotating along with the radial direction of the base shaft, an induction detector and a central controller, wherein the induction detector is used for receiving a triggering signal passing through the rotation of the triggering device and transmitting an induction signal corresponding to the triggering signal to the central controller. Wherein the trigger signal may be a mechanical signal, an optical signal, a magnetic signal, or the like. Therefore, the information such as the rotation times and the rotation time point of the base shaft can be obtained through the trigger device and the induction detector, so that the lock can be further intelligently managed after the information is obtained, for example, a prompt signal that the knob is rotated is sent, and a user can know the use condition of the lock.

In specific application, a transition shaft is generally inserted on the base shaft when the base shaft and the lock body of the lock are required to be connected, and the further technical scheme can also be that the lock further comprises a torsion spring and the transition shaft, wherein an axial insertion hole and a pair of transverse through holes which are arranged on the left and the right and extend transversely are arranged at the top end part of the base shaft, the pair of transverse through holes penetrate through the axial insertion hole, and the head part of the transition shaft can be inserted into the axial insertion hole; the torsion spring comprises a pair of arc-shaped clamping arms, and can surround the base shaft through the pair of arc-shaped clamping arms and enable part of arm bodies of the pair of arc-shaped clamping arms to respectively penetrate through the pair of transverse through holes and extend into the axial insertion hole; the head of the transition shaft is provided with a pair of pits which are arranged left and right, when the head of the transition shaft is inserted into the axial jack, the pair of arc-shaped clamping arms are respectively clamped on the pair of pits to clamp the transition shaft, so that the transition shaft cannot be easily pulled out of the axial jack, but the transition shaft can be conveniently pulled out by utilizing the elastic deformation of the pair of arc-shaped clamping arms. Therefore, the requirements of fast assembly and stable assembly between the transition shaft and the base shaft are met, and the requirement of convenient disassembly of the transition shaft is also met.

Due to the characteristics and the advantages, the invention can be applied to the lockset needing to position the knob, such as an anti-locking knob positioning structure of the lockset.

Drawings

Fig. 1 is a schematic perspective view of a lock 100 to which the present invention is applied;

fig. 2 is an exploded view of the lock 100, in which the lock plate body 1 is omitted;

fig. 3 is a schematic view of kinematic cooperation of the static positioning arm 3 and the dynamic positioning arm 4;

FIG. 4 is a cross-sectional view of the lock 100;

fig. 5 is a schematic view of the front view of the transition shaft 7;

fig. 6 is a schematic perspective view of the torsion spring 8.

Detailed Description

As shown in fig. 1 and fig. 2, a lock 100 with a knob positioning structure is provided, where the lock 100 includes a lock plate body 1 and a knob 2 rotatably mounted on the lock plate body 1. The knob 2 includes a handle 21 exposed outside the lock plate 1, and a base shaft 22 penetrating through the lock plate 1 and connected to the handle 21. In the present embodiment, the lock plate body 1 is a decorative panel. In other embodiments, the lock plate body 1 may also be a part of a lock housing arranged inside the decorative panel, the lock housing being configured to receive a bolt or the like.

The inner side of the lock plate body 1 is provided with a static positioning arm 3 and a connecting arm 9, and the static positioning arm 3 is fixedly connected to the lock plate body 1 through the connecting arm 9. An anti-rotation inserting mechanism is arranged between the connecting arm 9 and the static positioning arm 3. Of course, in other embodiments, the static positioning arm 3 and the connecting arm 9 may be an integral structure, and the rotation-preventing insertion mechanism is omitted. The anti-rotation plugging mechanism comprises a positioning plug 91 and a positioning hole 32, wherein the cross sections of the positioning plug 91 and the positioning hole 32 are non-circular and are arranged in a matched mode. The cross-sectional shapes of the positioning plug 91 and the positioning hole 32 may be various. In the present embodiment, the positioning hole 32 has a hexagonal cross-sectional shape substantially corresponding to the cross-sectional shape of the positioning plug 91, the positioning plug 91 being provided on the connecting arm 9, and the positioning hole 32 being provided on the stationary positioning arm 3. The static positioning arm 3 is inserted into the positioning plug 91 through the positioning hole 32, and then the screw is screwed on the positioning plug 91 to fixedly connect the static positioning arm 3 to the connecting arm 9. The static positioning arm 3 is further provided with an annular hole 30, and the annular hole 30 and the positioning hole 32 are arranged left and right. The tip end portion of the base shaft 22 is inserted into the annular ring 30 and is rotatable in the annular ring 30. Thus, the annular ring 30 of the stationary positioning arm 3 does not obstruct the rotation of the base shaft 22, and the rotation of the base shaft 22 does not rotate the stationary positioning arm 3.

The movable positioning arm 4 is further disposed between the stationary positioning arm 3 and the lock plate body 1, but the stationary positioning arm 3 may be disposed between the movable positioning arm 4 and the lock plate body 1 in other embodiments. The movable positioning arm 4 is axially slidably sleeved on the base shaft 22 and is radially linked with the base shaft 22, and the movable positioning arm 4 and the static positioning arm 3 are arranged in the front-back direction in the axial direction of the base shaft 22. A movable arm return spring 5 is further arranged between the lock plate body 1 and the movable positioning arm 4, and the movable arm return spring 5 is sleeved on the base shaft 22 in a penetrating manner. The movable arm return spring 5 can drive the movable positioning arm 4 to abut against the static positioning arm 3, concave-convex abutting structures (31, 41) are arranged on an abutting working surface between the movable positioning arm 4 and the static positioning arm 3, and when the movable positioning arm 4 is driven by the base shaft 22 to rotate radially relative to the static positioning arm 3, each step of rotation can be positioned by means of the concave-convex abutting structures (31, 41). The concave-convex contact structure 31 is a structural body provided with concave-convex portions, and includes a crest portion 311, a bottom valley portion 312, and an inclined surface 313 connected between the crest portion 311 and the bottom valley portion 312. The concave-convex abutting structure 41 and the concave-convex abutting structure 31 have matching structures, and similarly have a crest portion 411, a bottom valley portion 412, and an inclined surface 413. The movable positioning arm 4 and the static positioning arm 3 are clamped together through the concave-convex matching of the concave-convex abutting structures (31, 41), so that the movable positioning arm 4 is positioned in the radial direction. As shown in fig. 3, when the handle 21 applies a radial torque to the base shaft 22 to drive the movable positioning arm 4 to rotate radially relative to the stationary positioning arm 3, the crest 411 on the movable positioning arm 4 abuts against the inclined surface 313 on the stationary positioning arm 3 and continues to rotate radially under the guidance of the inclined surface 313, and simultaneously slides axially in a direction away from the stationary positioning arm 3, thereby temporarily releasing the engagement between the movable positioning arm 4 and the stationary positioning arm 3. In this process, the movable positioning arm 4 presses the movable arm return spring 5 to contract and deform. When the crest 411 on the movable positioning arm 4 radially rotates to pass through the trough 312 on the stationary positioning arm 3, the movable positioning arm 4 axially slides in a direction approaching the stationary positioning arm 3 under the urging of the movable arm return spring 5 to be clamped on the stationary positioning arm 3 again, and the movable positioning arm 4 rotates by one step and is positioned, and the base shaft 22 is positioned through the movable positioning arm 4. If the torque continues to be applied to rotate the base shaft 22, the movable positioning arm 4 will continue to rotate radially, but will be positioned once per rotation step. It can be seen that each rotation can be positioned by means of the concave-convex abutting structure (31, 41) when the movable positioning arm 4 is rotated radially relative to the static positioning arm 3 by the base shaft 22.

In addition, the layout position of the boom return spring 5 may be various. In other embodiments, the movable arm return spring may be disposed between the movable positioning arm 4 and the stationary positioning arm 3, and the movable positioning arm 4 is pulled by the movable arm return spring to move toward the stationary positioning arm 3; in this embodiment, the static positioning arm 3 may be disposed between the dynamic positioning arm 4 and the lock plate body 1, and the dynamic positioning arm 4 is pushed by the dynamic arm return spring to move toward the static positioning arm 3.

According to the above technical solution, it can be found that, firstly, since each step of rotation of the movable positioning arm 4 can be positioned by means of the concave-convex abutting structures (31, 41), the base shaft 22 can be positioned to prevent the base shaft 22 from rotating freely to affect the operation of other members, and further, a single step of rotation angle of the base shaft 22, for example, a single step of rotation of 90 °, can be determined by means of the concave-convex abutting structures (31, 41). In addition, the movable positioning arm 4 and the static positioning arm 3 are arranged in the front and back direction of the axis direction of the base shaft 22, so that the installation space occupied by the movable positioning arm 4 and the static positioning arm 3 in the direction parallel to the lock plate body 1 can be reduced, and more installation space is provided for other functional components.

As shown in fig. 1, a triggering device 6, an induction detector 600 and a central controller (not shown) are further disposed on the inner side of the lock plate body 1, wherein the triggering device 6 is a cam. The cam 6 is provided with a connecting through hole 61, and the cam 6 is sleeved on the base shaft 22 through the connecting through hole 61 and radially linked with the base shaft 22, so that the cam 6 can radially rotate along with the base shaft 22. The cam 6 abuts against the inner side of the lock plate body 1, the movable arm return spring 5 is arranged between the cam 6 and the movable positioning arm 4, one end of the movable arm return spring 5 abuts against the movable positioning arm 4, and the other end of the movable arm return spring abuts against the cam 6. The induction detector 600 is configured to receive a trigger signal that the protrusion 62 of the cam 6 rotates past and transmit an induction signal corresponding to the trigger signal to the central controller. Thus, the information such as the number of rotations and the rotation time of the base shaft 22 can be obtained through the triggering device and the sensing detector 600, so that the lock 100 can be further intelligently managed after obtaining the information, for example, a prompt signal that the knob 2 has been rotated is sent, so that a user can know the use condition of the lock.

As shown in fig. 4, 5 and 6, the lock 100 further includes a torsion spring 8 and a transition shaft 7, an axial insertion hole 221 and a pair of lateral through holes (222, 222a) that are disposed on the top end portion of the base shaft 22 and extend laterally, the pair of lateral through holes (222, 222a) pass through the axial insertion hole 221, and the head portion 71 of the transition shaft 7 can be inserted into the axial insertion hole 221. The torsion spring 8 includes a coil body 81 and a pair of arc-shaped catching arms (82, 82a) extending from the coil body 8. The arc-shaped clamp arms (82, 82a) are arm bodies which can define an encircling space on the inner sides thereof through own mechanical structures, the arc-shaped clamp arms are not limited to be standard arc-shaped, and can also be other shapes which are similar to arc-shaped and can form the encircling space, such as a doorframe shape. The torsion spring 8 surrounds the base shaft 22 through the pair of arc-shaped clamping arms (82, 82a) and allows part of arm bodies of the pair of arc-shaped clamping arms (82, 82a) to respectively extend into the axial insertion hole 221 through the pair of transverse through holes (222, 222 a). A pair of left and right arranged concave pits (72, 72a) are arranged on the head part 71 of the transition shaft 7, and the concave pits (72, 72a) are concave parts arranged at intervals on the head part 71 of the transition shaft. Of course, in other embodiments, the pair of dimples (72, 72a) may be two recessed portions provided in a continuously extending recessed ring on the head portion 71 of the transition shaft 7. When the head 71 of the transition shaft 7 is inserted into the axial insertion hole 221 downwards, the pair of arc-shaped clamping arms (82, 82a) is pressed by the head 71 of the transition shaft to be expanded so that the transition shaft 7 can be inserted downwards continuously, and when the concave pits (72, 72a) slide downwards to the arc-shaped clamping arms (82, 82a), the pair of arc-shaped clamping arms (82, 82a) are mutually close to each other and clamped to the pair of concave pits (72, 72a) so as to clamp the transition shaft 7 and further prevent the transition shaft 7 from being easily separated from the axial insertion hole 221. The combination of the concave recesses (72, 72a) and the arc-shaped clamping arms (82, 82a) can clamp the transition shaft 7, so that a relatively stable connection relationship is formed between the transition shaft 7 and the base shaft 22, and the transition shaft 7 cannot be easily disengaged from the axial insertion hole 221. However, the arc-shaped clamping arms (82, 82a) have certain elastic deformation capability, so that the connection relationship can be changed in a relatively convenient manner, namely when the transition shaft 7 is pulled upwards reversely, the transition shaft 7 reversely presses the pair of arc-shaped clamping arms (82, 82a) to enable the arc-shaped clamping arms to be elastically deformed and to be appropriately opened, so that the transition shaft 7 is released, namely the transition shaft 7 can be conveniently pulled out by utilizing the elastic deformation of the pair of arc-shaped clamping arms (82, 82 a). It can be seen that in this embodiment, both the quick and stable installation of the transition shaft 7 and the base shaft 22 and the easy removal of the transition shaft 7 are both satisfied.

In order to enable the transition shaft 7 to be inserted into the axial insertion hole 221 relatively easily and smoothly, a pair of left and right spaced guide slope surfaces (712, 712a) are further provided at the tip end of the transition shaft head 71. The pair of arc-shaped clamping arms (82 and 82a) are respectively provided with a bent back portion (83 and 83a) which are axially arranged, the bent back portions (83 and 83a) are respectively provided with arc-shaped heads (831 and 831a) which are axially arranged, and the bent back portions (83 and 83a) respectively penetrate through the transverse through holes (222 and 222a) to be inserted into the axial insertion hole 221. When the transition shaft head part 71 is pressed onto the bent parts (83, 83a), under the action of the arc-shaped head parts (831, 831a), the transition shaft head part 71 can relatively easily push and push the pair of arc-shaped clamping arms to be opened so as to be smoothly inserted between the pair of arc-shaped clamping arms (82, 82a), and conversely, the transition shaft head part can be conveniently pulled out from between the pair of arc-shaped clamping arms (82, 82 a). In addition, the structural strength of the arc-shaped clamping arms (82 and 82a) can be respectively strengthened by the bent parts (83 and 83a) in the shape of a circle, and the clamping force on the transition shaft 7 is prevented from being influenced by destructive deformation of the arc-shaped clamping arms (82 and 82a) after long-term use.

In order to enable the transition shaft 7 to be more conveniently drawn out of the axial insertion hole 221, side walls (721, 721a) of the recesses (72, 72a) on the side close to the head 71 are respectively arranged in an inclined manner. In this way, the angle between the side walls (721, 721a) and the central axis of the base shaft 22 can be properly arranged to control the amount of the pulling force so that the transition shaft 7 can be pulled out of the axial insertion hole 221 without being too easy.

Claims (6)

1. The lock with the knob positioning structure comprises a lock plate body and a knob rotatably arranged on the lock plate body; the knob is characterized by comprising a handle exposed outside the lock plate body, a base shaft penetrating through the lock plate body and connected to the handle, and a static positioning arm which is positioned on the inner side of the lock plate body and fixedly connected to the lock plate body through a connecting arm; the movable positioning arm is axially and slidably sleeved on the base shaft and is in radial linkage with the base shaft, and the movable positioning arm and the static positioning arm are arranged in the front-back direction in the axial direction of the base shaft; the movable positioning arm is characterized by further comprising a movable arm return spring, the movable arm return spring can drive the movable positioning arm to abut against the static positioning arm, a concave-convex abutting structure is arranged on an abutting working surface between the movable positioning arm and the static positioning arm, and when the movable positioning arm is driven by the base shaft to rotate radially relative to the static positioning arm, each step of rotation can be positioned by means of the concave-convex abutting structure.

2. The lock according to claim 1, wherein said movable arm return spring is disposed between said movable positioning arm and said lock plate body; or the movable arm return spring is arranged between the movable positioning arm and the static positioning arm; further alternatively, the boom return spring is provided between the dynamic positioning arm and the tip end portion of the base shaft.

3. The lock according to claim 1, wherein an anti-rotation inserting mechanism is disposed between the connecting arm and the static positioning arm, the anti-rotation inserting mechanism includes a positioning plug and a positioning hole, the cross sections of the positioning plug and the positioning hole are non-circular and are respectively disposed in a matching manner, and the positioning plug and the positioning hole are respectively disposed on the connecting arm and the static positioning arm.

4. The lock according to claim 1, wherein the stationary positioning arm is provided with an annular hole, and the tip end portion of the base shaft is inserted into the annular hole and is rotatable therein.

5. The lock according to any one of claims 1 to 4, further comprising a trigger device capable of rotating radially with the base shaft, an inductive detector and a central controller, wherein the inductive detector is configured to receive a trigger signal passing by the trigger device and to transmit an inductive signal corresponding to the trigger signal to the central controller.

6. The lockset as claimed in any one of claims 1 to 4 further comprising a torsion spring and a transition shaft, wherein an axial insertion hole and a pair of left and right spaced and laterally extending lateral through holes are formed in a top end portion of said base shaft, said pair of lateral through holes pass through said axial insertion hole, and a head portion of said transition shaft is insertable into said axial insertion hole; the torsion spring comprises a pair of arc-shaped clamping arms, and can surround the base shaft through the pair of arc-shaped clamping arms and enable part of arm bodies of the pair of arc-shaped clamping arms to respectively penetrate through the pair of transverse through holes and extend into the axial insertion hole; the head of the transition shaft is provided with a pair of pits which are arranged left and right, when the head of the transition shaft is inserted into the axial jack, the pair of arc-shaped clamping arms are respectively clamped on the pair of pits to clamp the transition shaft, so that the transition shaft cannot be easily pulled out of the axial jack, but the transition shaft can be conveniently pulled out by utilizing the elastic deformation of the pair of arc-shaped clamping arms.

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