阅读说明：本技术 锁具及开关方法 (Lockset and opening and closing method ) 是由 杨磊 徐军 于 2020-04-30 设计创作，主要内容包括：本发明公开了一种锁具及开关方法,所述锁具包括：底板、锁轴机构、限位机构以及感应开关。所述锁轴机构上设有限位部,所述锁轴机构包括开锁状态和关锁状态；所述限位机构与所述限位部配合并用于对所述锁轴机构的关锁状态进行限位；所述感应开关用于感应所述限位机构的位置并发出开闭锁状态的信号。本发明的锁具在使用时,确保限位部与限位机构卡接完成的同时触发感应开关,解决了传统的感应开关被提前或延迟触发的问题。(The invention discloses a lockset and a switching method, wherein the lockset comprises: bottom plate, lock axle mechanism, stop gear and inductive switch. The lock shaft mechanism is provided with a limiting part and comprises an unlocking state and a locking state; the limiting mechanism is matched with the limiting part and used for limiting the locking state of the lock shaft mechanism; the inductive switch is used for sensing the position of the limiting mechanism and sending a signal for opening and closing the lock state. When the lockset is used, the induction switch is triggered while the limiting part is clamped with the limiting mechanism, so that the problem that the traditional induction switch is triggered in advance or in delay is solved.)

1. A lock, comprising:

a base plate;

the lock shaft mechanism is movably arranged on the bottom plate and comprises a lock tongue, and when the lock is in a locking state, the lock shaft mechanism can extend out of the lock tongue along the locking direction; when in an unlocking state, the lock shaft structure retracts the lock bolt along the unlocking direction; the lock shaft mechanism is provided with a limiting part;

the limiting mechanism is rotatably arranged on the bottom plate, is matched with the limiting part and is used for limiting the locking state of the lock shaft mechanism;

and the induction switch is arranged on the bottom plate and is used for inducing the position of the limiting mechanism and sending a signal for opening and closing the lock state.

2. The lock according to claim 1, further comprising a safety mechanism, wherein the safety mechanism is disposed on the bottom plate and electrically connected to the inductive switch for providing safety for the limiting function of the limiting mechanism.

3. The lockset as recited in claim 2, wherein a lock shaft through hole is formed in the bottom plate for passing through the lock shaft mechanism, and the lock shaft mechanism can move along an axial direction of the lock shaft through hole to extend or retract the latch bolt into the lock shaft through hole.

4. The lock according to claim 3, wherein the lock shaft mechanism includes a lock shaft body inserted into the through hole of the lock shaft, and a return elastic member connected to the lock shaft body and providing power for the movement of the lock shaft body, and the position-limiting portion and the lock tongue are both disposed on the lock shaft body.

5. The lock according to claim 4, wherein the lock shaft body is a secondary stepped shaft, and the return elastic member is a return spring; the reset spring is sleeved on the small-diameter section of the secondary stepped shaft, and the outer diameter of the reset spring is smaller than that of the large-diameter end of the secondary stepped shaft; the limiting part is arranged on the small-diameter section; the lock tongue is a free end of the small-diameter section, or the lock tongue is connected with the free end of the small-diameter section; the secondary stepped shaft is connected with the bottom plate in a sliding manner through a bolt arranged on the large-diameter section; the bottom plate is provided with a sliding groove matched with the bolt, and the length direction of the sliding groove is consistent with the movement direction of the lock shaft body.

6. The lockset of claim 2 wherein said limiting mechanism comprises a latch shaft having a pivot hole and a torsion spring disposed at said pivot hole for repositioning said latch shaft; and the bottom plate is provided with a rotating shaft which is in inserting fit with the rotating shaft hole.

7. The lockset as recited in claim 6, wherein the limiting portion is a slot, and the latch shaft comprises a latch portion engaged with the slot, a trigger portion engaged with the inductive switch, and a pushing portion engaged with the safety mechanism.

8. The lock according to claim 7, wherein the safety mechanism comprises a safety limit component for pushing the pushing portion and limiting the pushing portion, a driving component for driving the safety limit component to act, and a sensing component for sensing the position of the safety limit component; the driving piece is connected with the inductive switch and the inductive piece.

9. The lock according to claim 8, wherein said safety stop assembly comprises a push rod and a trigger member, both of which are connected to said drive member; the push rod is used for pushing the abutting part and limiting the abutting part, and the trigger piece is used for triggering the induction piece.

10. A switching method, comprising:

the locking state of the lock shaft mechanism is an initial state, at the moment, a lock tongue of the lock shaft mechanism is in an extending state, and the limiting mechanism is matched with the limiting part of the lock shaft mechanism;

when the system identifies an external unlocking signal, the limiting mechanism is disengaged from the limiting part;

the inductive switch induces the position change of the limiting mechanism and sends a signal of an unlocking state;

meanwhile, the lock shaft mechanism loses the limit constraint of the limit mechanism and resets, the lock tongue retracts, and the lock shaft mechanism is in an unlocking state;

when the lock is closed, the external force pushes the lock shaft mechanism to extend the lock tongue;

the limiting mechanism is matched with the limiting part;

the inductive switch senses the position change of the limiting mechanism, the inductive switch sends out a locking state signal, and the lockset is restored to the initial state.

Technical Field

The invention relates to the electromechanical field, in particular to a lockset and a switching method.

Background

With the development of internet technology, shared economy such as shared bicycles and shared mopeds which are raised in various cities throughout the country is almost everywhere visible, and compared with the traditional public bicycle with piles, the shared bicycle without piles which is taken and stopped at any time brings more convenience to users.

The existing vehicle locks applied to the shared bicycle and the shared moped in the market are various and comprise a mechanical lock and an electronic lock, wherein the electronic lock is more widely applied due to the compatibility with the internet and higher matching degree. However, when the conventional manual pressing type electronic lock is pressed, the inductive switch in the manual pressing type electronic lock is triggered in advance or in a delayed manner, so that a false lock phenomenon that a locking signal is sent and is not matched with a locking state occurs, and a battery is stolen; meanwhile, the reliability of the lockset is not strong, and the battery can be stolen.

Disclosure of Invention

Based on the above, the invention overcomes the defect that when the manual pressing type electronic lock in the prior art is pressed, the induction switch in the manual pressing type electronic lock is triggered in advance or in a delayed manner, so that a false lock phenomenon that a locking signal is sent and the locking state is not matched is caused, and a battery is stolen; meanwhile, the reliability of the lockset is not strong, and the battery can be stolen, so that the lockset and the opening and closing method thereof are provided.

The technical scheme is as follows:

a lockset, comprising:

a base plate;

the lock shaft mechanism is movably arranged on the bottom plate and comprises a lock tongue, and when the lock is in a locking state, the lock shaft mechanism can extend out of the lock tongue along the locking direction; when in an unlocking state, the lock shaft mechanism retracts the lock bolt along the unlocking direction; the lock shaft mechanism is provided with a limiting part;

the limiting mechanism is rotatably arranged on the bottom plate, is matched with the limiting part and is used for limiting the locking state of the lock shaft mechanism;

and the induction switch is arranged on the bottom plate and is used for inducing the position of the limiting mechanism and sending a signal for opening and closing the lock state.

When the lockset of the technical scheme is used, the limit part is ensured to be matched with the limit mechanism to complete and the inductive switch is triggered, so that the problem that the traditional inductive switch is triggered in advance or delayed is solved.

Specifically, the locking state of the lock shaft mechanism is an initial state, at this time, the lock tongue of the lock shaft mechanism extends out of the bottom plate, and the limiting mechanism is matched with the limiting part of the lock shaft mechanism. When the system identifies an external unlocking signal, the position of the limiting mechanism is changed and is separated from the limiting part; the inductive switch induces the position change of the limiting mechanism and sends a signal of an unlocking state; and simultaneously, the lock shaft mechanism loses the limit constraint of the limit mechanism to reset, the lock tongue retracts, and the lock shaft mechanism is in an unlocking state at the moment.

When the lock is closed, the external force pushes the lock shaft mechanism to make the lock tongue extend out of the bottom plate; at the moment, the position of the limiting mechanism changes and is matched with the limiting part; when the limiting part is matched with the limiting mechanism, the inductive switch senses the position change of the limiting mechanism, the inductive switch sends a signal of locking state, and the lockset is restored to the initial state.

In one embodiment, the lockset further comprises a safety mechanism, wherein the safety mechanism is arranged on the bottom plate and electrically connected with the inductive switch and used for providing safety for the limiting function of the limiting mechanism.

In one embodiment, the bottom plate is provided with a lock shaft through hole for penetrating through the lock shaft mechanism, and the lock shaft mechanism can move along the axis direction of the lock shaft through hole to enable the lock tongue to extend out of or retract into the lock shaft through hole.

In one embodiment, the lock shaft mechanism includes a lock shaft body inserted into the through hole of the lock shaft, and a reset elastic member connected to the lock shaft body and providing power for the movement of the lock shaft body, and the limiting portion and the lock tongue are both disposed on the lock shaft body.

In one embodiment, the lock shaft body is a two-stage stepped shaft, and the return elastic piece is a return spring; the reset spring is sleeved on the small-diameter section of the secondary stepped shaft, and the outer diameter of the reset spring is smaller than that of the large-diameter end of the secondary stepped shaft; the limiting part is arranged on the small-diameter section; the lock tongue is a free end of the small-diameter section, or the lock tongue is connected with the free end of the small-diameter section; the secondary stepped shaft is connected with the bottom plate in a sliding manner through a bolt arranged on the large-diameter section; the bottom plate is provided with a sliding groove matched with the bolt, and the length direction of the sliding groove is consistent with the movement direction of the lock shaft body.

In one embodiment, the limiting mechanism comprises a clamping shaft provided with a rotating shaft hole and a torsion spring which is arranged at the rotating shaft hole and used for resetting the clamping shaft; the bottom plate is provided with a rotating shaft which is in inserting fit with the rotating shaft hole; the limiting portion is a clamping groove, and the clamping shaft comprises a clamping portion matched with the clamping groove, a triggering portion matched with the inductive switch and a pushing portion matched with the safety mechanism.

In one embodiment, the triggering portion and the pushing portion are respectively located at two opposite ends of the clamping portion.

In one embodiment, the safety mechanism comprises a safety limiting component for pushing the pushing part and limiting the pushing part, a driving component for driving the safety limiting component to act, and a sensing component for sensing the position of the safety limiting component; the driving piece is electrically connected with the inductive switch and the inductive piece.

In one embodiment, the safety limit assembly comprises a push rod and a trigger piece, and the push rod and the trigger piece are both connected with the driving piece; the push rod is used for pushing the abutting part and limiting the abutting part, and the trigger piece is used for triggering the induction piece.

In one embodiment, the push rod and the trigger are coaxially connected.

In one embodiment, the trigger is a cam; and/or the inductive switch and the inductive piece are both travel switches.

The technical scheme also provides a switching method, which comprises the following steps:

the locking state of the lock shaft mechanism is an initial state, at the moment, a lock tongue of the lock shaft mechanism is in an extending state, and the limiting mechanism is matched with the limiting part of the lock shaft mechanism;

when the system identifies an external unlocking signal, the limiting mechanism is disengaged from the limiting part;

the inductive switch induces the position change of the limiting mechanism and sends a signal of an unlocking state;

meanwhile, the lock shaft mechanism loses the limit constraint of the limit mechanism and resets, the lock tongue retracts, and the lock shaft mechanism is in an unlocking state;

when the lock is closed, the external force pushes the lock shaft mechanism to extend the lock tongue;

the limiting mechanism is matched with the limiting part;

the inductive switch senses the position change of the limiting mechanism, the inductive switch sends out a locking state signal, and the lockset is restored to the initial state.

The switching method of the technical scheme ensures that the limit part and the limit mechanism are matched and completed and simultaneously triggers the inductive switch, and solves the problem that the traditional inductive switch is triggered in advance or in a delayed manner.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic view of an unlocked state of a lock according to an embodiment of the present invention;

FIG. 2 is a schematic view of an opening process of the lock according to the embodiment of the present invention;

FIG. 3 is a schematic view of a lock according to an embodiment of the present invention;

FIG. 4 is a perspective view of a lock according to an embodiment of the present invention in a locked state;

FIG. 5 is a perspective view of a lock according to an embodiment of the present invention in an unlocked state;

fig. 6 is an exploded view of a lock according to an embodiment of the present invention.

Description of reference numerals:

10. a base plate; 11. a chute; 12. a rotating shaft; 13. a locking groove; 20. a shaft locking mechanism; 21. a latch bolt; 22. a limiting part; 23. a lock shaft body; 24. a restoring elastic member; 25. a bolt; 30. a limiting mechanism; 31. clamping a shaft; 311. a rotating shaft hole; 312. a clamping part; 313. a trigger section; 314. a pushing part; 32. a torsion spring; 40. an inductive switch; 50. a safety mechanism; 51. a safety limit component; 511. a push rod; 512. a trigger; 53. a sensing member.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

A lock as shown in fig. 1-6, comprising:

a base plate 10;

the lock shaft mechanism 20 is movably arranged on the bottom plate 10 and comprises a lock tongue 21, and in the locking state, the lock shaft mechanism 20 extends out of the lock tongue 21 along the locking direction; in the unlocking state, the lock shaft mechanism 20 retracts the lock bolt 21 in the unlocking direction; the shaft locking mechanism 20 is provided with a limiting part 22;

the limiting mechanism 30 is rotatably arranged on the bottom plate 10, is matched with the limiting part 22 and is used for limiting the locking state of the lock shaft mechanism 20;

and the inductive switch 40 is arranged on the bottom plate 10 and used for sensing the position of the limiting mechanism 30 and sending a signal for opening and closing the lock state.

When the lockset of the embodiment is used, the induction switch 40 is triggered while the matching of the limiting part 22 and the limiting mechanism 30 is completed, and the problem that the traditional induction switch 40 is triggered in advance or in a delayed manner is solved.

Specifically, the locked state of the lock shaft mechanism 20 is an initial state, at this time, the lock tongue 21 of the lock shaft mechanism 20 extends out of the bottom plate 10, and the limiting mechanism 30 is completely engaged with the limiting portion 22 of the lock shaft mechanism 20. When the system recognizes an external unlocking signal, the position of the limiting mechanism 30 is changed and is disengaged from the limiting part 22; the inductive switch 40 induces the position change of the limit mechanism 30, and the inductive switch 40 sends out a signal of an unlocking state; meanwhile, the lock shaft mechanism 20 loses the limit constraint of the limit mechanism 30 and is reset, the lock tongue 21 retracts, and the lock shaft mechanism 20 is in an unlocked state, namely, the state shown in fig. 1.

When the lock is closed, external force pushes the lock shaft mechanism 20 to make the bolt 21 extend out of the bottom plate 10; at this time, the position of the limiting mechanism 30 changes and is matched with the limiting part 22; when the matching of the limiting part 22 and the limiting mechanism 30 is completed, the inductive switch 40 senses the position change of the limiting mechanism 30, and the inductive switch 40 sends out a signal of a lock-off state, so that the lock is restored to an initial state.

The lockset of the embodiment further comprises a safety mechanism 50, wherein the safety mechanism 50 is arranged on the bottom plate 10 and electrically connected with the inductive switch 40, and is used for providing safety for the limiting function of the limiting mechanism 30. The safety mechanism 50 of the present embodiment provides one more guarantee for the limit of the limit mechanism 30, and avoids the phenomenon that the lock is separated from the limit mechanism 30 by the limit portion 22 under the condition of external force impact, which affects the locking reliability.

Specifically, the locking state of the lock shaft mechanism 20 is an initial state, at this time, the lock tongue 21 of the lock shaft mechanism 20 extends out of the bottom plate 10, and the limiting mechanism 30 is matched with the limiting part 22 of the lock shaft mechanism 20; meanwhile, the safety mechanism 50 restrains the limiting mechanism 30; the phenomenon that the locking reliability is influenced because the limiting part 22 is separated from the limiting mechanism 30 under the condition that the lock is impacted by external force is avoided. When the system identifies an external unlocking signal, the safety mechanism 50 acts to make the limiting mechanism 30 lose the constraint of the safety mechanism 50; the position of the limiting mechanism 30 changes and is disengaged from the limiting part 22; the inductive switch 40 induces the position change of the limit mechanism 30, and the inductive switch 40 sends out a signal of an unlocking state; meanwhile, the lock shaft mechanism 20 loses the limit constraint of the limit mechanism 30 and is reset, the lock bolt 21 retracts, and at the moment, the lock shaft mechanism 20 is in an unlocking state.

When the lock is closed, external force pushes the lock shaft mechanism 20 to make the bolt 21 extend out of the bottom plate 10; at this time, the position of the limiting mechanism 30 changes and is matched with the limiting part 22; when the matching of the limiting part 22 and the limiting mechanism 30 is completed, the inductive switch 40 senses the position change of the limiting mechanism 30, and the inductive switch 40 sends out a signal of a lock-off state, so that the lock is restored to an initial state.

In this embodiment, the bottom plate 10 is provided with a lock shaft through hole for penetrating the lock shaft mechanism 20, and the lock shaft mechanism 20 can move along the axis direction of the lock shaft through hole, so that the lock tongue 21 extends out of or retracts into the lock shaft through hole to realize locking and unlocking. Specifically, the bottom plate 10 includes a base plate and a protrusion disposed on the base plate, and the locking shaft through hole penetrates through the protrusion to form a tunnel structure for the locking shaft mechanism 20 to penetrate therethrough. The limiting mechanism 30, the inductive switch 40 and the safety mechanism 50 are all arranged on the substrate.

As shown in fig. 6, the lock shaft mechanism 20 of the present embodiment includes a lock shaft body 23 inserted into the through hole of the lock shaft, and a return elastic member 24 connected to the lock shaft body 23 and providing power for the movement of the lock shaft body 23, wherein the limiting portion 22 and the lock tongue 21 are both disposed on the lock shaft body 23. Specifically, spacing portion 22 is for seting up the draw-in groove in lock shaft body 23, when the tool to lock was located the lock state of closing, when spacing portion 22 and stop gear 30 joint were joined in marriage promptly, reset elastic component 24 was in compression state, after spacing portion 22 broke away from with stop gear 30, lock shaft body 23 lost stop gear 30's restraint, reset elastic component 24 was reset to initial condition by compression state, provide power for the motion of lock shaft body 23, lock shaft body 23 drives the motion of spring bolt 21, make in the spring bolt 21 withdrawal lock shaft through-hole, thereby accomplish and unblank. On the contrary, when the lock needs to be closed, the external force pushes the lock shaft body 23 to enable the bolt 21 to extend out of the lock shaft through hole, the limiting part 22 is clamped with the limiting mechanism 30 to limit the lock shaft body 23 to retract, and the reset elastic part 24 is restored to the compression state.

In this embodiment, the lock shaft body 23 is a two-stage stepped shaft, and the return elastic member 24 is a return spring; the reset spring is sleeved on the small-diameter section of the second-stage stepped shaft, the outer diameter of the reset spring is smaller than the outer diameter of the large-diameter end of the second-stage stepped shaft, the inner diameter of the lock shaft through hole is matched with the outer diameter of the large-diameter section, a first hole opening close to one end of the lock tongue 21 in the lock shaft through hole is matched with the outer diameter of the small-diameter section, and the reset spring is sleeved on the small-diameter section of the second-stage stepped shaft and located in the lock shaft through hole. One end of the reset spring is grounded with the shaft shoulder of the second-level ladder, the other end of the reset spring is abutted to the inner wall of the first hole, specifically, when the lock is in a locking state, the reset spring is compressed, and when the lock is in an unlocking state, the reset spring resets. In other embodiments, one end of the return spring may also be fixedly connected with a shaft shoulder of the secondary stepped shaft, and the other end is a free end; or one end of the return spring is fixedly connected with the inner wall of the second hole, and the other end of the return spring is abutted against the shaft shoulder; or the two ends of the return spring are respectively fixedly connected with the shaft shoulder and the inner wall of the second hole. The compression of the return spring can be achieved by adjusting the distance between the shoulder of the secondary stepped shaft and the first orifice, for example, by pushing the lock shaft body 23 with external force when the lock is closed. The secondary stepped shaft is connected with the bottom plate 10 in a sliding manner through a bolt 25 arranged on the large-diameter section; the bottom plate 10 is provided with a sliding groove 11 matched with the bolt 25, and the length direction of the sliding groove 11 is consistent with the movement direction of the lock shaft body 23. The bolt 25 is fixedly inserted through the lock shaft body 23 and can move along the sliding groove 11. Specifically, the plug 25 is a cylindrical structure, and an axis of the plug 25 is perpendicular to an axis of the lock shaft body 23, that is, the axis of the plug 25 is perpendicular to the moving direction of the lock shaft body 23. The bolt 25 is matched with the sliding groove 11, so that the movable connection between the lock shaft body 23 and the bottom plate 10 can be realized, and the moving direction of the lock shaft body 23 can be guided.

In the embodiment, the clamping groove is arranged on the wall surface of the small-diameter section close to one side of the clamping shaft 31, and is a square groove, and when the clamping groove is in a locking state, the clamping groove is not overlapped with the return spring, so that the interference of the return spring on the clamping fit of the clamping groove and the limiting mechanism 30 is avoided; the locking tongue 21 is a free end of the small diameter section. In other embodiments, the locking tongue 21 may be configured to be connected to the free end of the small diameter section.

Referring to fig. 2 and fig. 6, the limiting mechanism 30 of the present embodiment includes a clamping shaft 31 having a rotating shaft hole 311, and a torsion spring 32 disposed at the rotating shaft hole 311 and used for resetting the clamping shaft 31; the bottom plate 10 is provided with a rotating shaft 12 which is inserted and matched with the rotating shaft hole 311, the torsion spring 32 is sleeved on the rotating shaft 12, two ends of the torsion spring 32 of the embodiment are respectively hooked on two sides of the clamping shaft 31, in other embodiments, one end of the torsion spring 32 can be hooked with the clamping shaft 31, and the other end of the torsion spring 32 is hooked with the bottom plate 10. The clamping shaft 31 comprises a clamping part 312 matched with the clamping groove, a triggering part 313 matched with the inductive switch 40, and a pushing part 314 matched with the safety mechanism 50, wherein the inductive switch 40 is a travel switch; the clamping portion 312 is a square rod matched with the square groove. Specifically, when the lock shaft mechanism 20 is in the off-lock state, the card slot is in clamping fit with the clamping portion 312, the position of the trigger portion 313 changes and triggers the inductive switch 40, the inductive switch 40 is changed from off to on, the inductive switch 40 sends a signal to the safety mechanism 50, the safety mechanism 50 acts to restrain the position of the limiting mechanism 30, the card slot is prevented from being separated from the clamping portion 312, and the torsion spring 32 is in a stressed torsion state; after receiving the signal of unblanking, safety mechanism 50 withdraws the restraint to stop gear 30, and torsional spring 32 resets, drives card axle 31 and rotates for draw-in groove and joint portion 312 break away from, and inductive switch 40 breaks away from the contact with trigger portion 313, becomes the disconnection by the closure, and lock axle mechanism 20 loses the spacing of joint portion 312, and the effect of reset spring is down retracted, drives spring bolt 21 withdrawal lock axle through-hole, realizes unblanking. When the state of unblanking, joint portion 312 and lock shaft mechanism 20 contact, and torsional spring 32 still has certain torsional force this moment, not reset completely yet, when external force is pressed and is closed the lock, because the vacancy of draw-in groove department makes and plays remaining elasticity surplus at torsional spring 32, torsional spring 32's the torsion that resets drives the rotation of card axle 31 and makes joint portion 312 and draw-in groove joint.

In order not to affect the matching relationship between the trigger portion 313, the pushing portion 314, and the clamping portion 312 and other components, the trigger portion 313 and the pushing portion 314 are respectively located at two opposite ends of the clamping portion 312 in this embodiment. In addition, the triggering portion 313, the pushing portion 314, and the engaging portion 312 are all in the shape of a boss or a rod.

The safety mechanism 50 of the present embodiment includes a safety limit component 51 for supporting the pushing portion 314, a driving member for driving the safety limit component 51 to move, and a sensing member 53 for sensing the position of the safety limit component 51; the driving member is electrically connected to both the inductive switch 40 and the inductive member 53. When the lock is closed, the card slot 31 is matched with the clamping portion 312, the triggering portion 313 triggers the inductive switch 40, the inductive switch 40 sends a signal to the driving member, the driving member drives the safety limiting component 51 to act, so that the safety limiting component 51 is contacted with the pushing portion 314, the clamping shaft 31 is maintained at the current position, and the matching of the card slot 31 and the clamping portion 312 is ensured. When the safety limiting assembly 51 moves in place, the sensing piece 53 senses the position of the safety limiting assembly 51, the sensing piece 53 sends a signal to the driving piece, and the driving piece stops moving. When the lock needs to be unlocked, the driving member receives an external unlocking signal to drive the safety limiting assembly 51 to act, so that the support of the abutting and pushing portion 314 is removed, and the clamping shaft 31 drives the clamping portion 312 to be separated from the clamping groove under the reset action of the torsion spring 32. After the insurance spacing subassembly 51 moves in place, the response piece 53 senses the insurance spacing subassembly 51 position, and the response piece 53 sends the signal to the driving piece, and the driving piece stops moving, resumes to the state of unblanking.

Referring to fig. 3, the safety limit assembly 51 of the present embodiment includes a push rod 511 and a trigger element 512, wherein the push rod 511 and the trigger element 512 are both connected to the driving element; the push rod 511 is used for supporting the pushing portion 314, and the trigger 512 is used for triggering the sensing element 53. In order to facilitate the connection between the push rod 511 and the trigger 512 and the driving member, in this embodiment, the push rod 511 and the trigger 512 are coaxially connected, the driving member includes a controller and a motor, the sensing member 53 and the motor are both electrically connected to the controller, and an output shaft of the motor is coaxially connected to the push rod 511 and the trigger 512. Both the push rod 511 and the trigger member 512 rotate in synchronism.

Specifically, the inductive switch 40, the inductive element 53 and the motor are all connected to the controller. When the lock is closed and the card slot 31 and the card connecting portion 312 are matched in place, the trigger portion 313 presses the inductive switch 40, the inductive switch 40 is changed from an open state to a closed state, the controller receives a signal of closing the inductive switch 40 and sends the signal to the motor, the motor drives the trigger 512 to rotate, when the trigger 512 rotates to a preset position, the trigger 512 presses the inductive part 53, the inductive part 53 is changed from the open state to the closed state, the controller receives the signal of closing the inductive part 53 and sends the signal to the motor, the motor stops rotating, and the push rod 511 presses the card shaft 31 in a pressing mode, so that the card shaft 31 is maintained at the current position, and stable matching of the card slot 31 and the card connecting portion 312 is guaranteed.

Specifically, the sensing element 53 is a travel switch, and in order to enable the triggering element 512 to be matched with the sensing element 53 in the rotating process, the triggering element 512 is a cam, and the cam is a wear-resistant cam, so that the triggering element 512 and the sensing element 53 are in a contact state and a non-contact state, and the push rod 511 is an L type push rod.

Taking the figure as an example, the central angle of the convex part of the cam in this embodiment is about 240 degrees, when the lock is closed, the external force presses the lock shaft body 23, the clamping part 312 enters the clamping groove through the torsion of the torsion spring 32, the inductive switch 40 is turned on from the off state, and sends a signal to the controller, the controller controls the motor to rotate, the motor drives the cam and the push rod 511 to rotate counterclockwise, the cam rotates until the cam presses the inductive piece 53, at this time, the cam rotates about 120 degrees, the inductive piece 53 is turned on from the off state, and sends a signal to the controller, the controller controls the motor to stop rotating, and the lock closing is completed. At this time, the push rod 511 is pushed against the lower end of the pushing part 314 to prevent the shaft 31 from being disengaged under the impact of external force, thereby playing a role of safety.

When unlocking, the inductive switch 40 and the inductive element 53 are both in a closed state, when the system recognizes an external unlocking signal (code scanning or other input signal), the controller controls the motor to rotate counterclockwise, so that the motor drives the cam and the push rod 511 to rotate counterclockwise, the push rod 511 rotates about 180 degrees, the clamping shaft 31 rotates clockwise under the action of the torsion spring 32, the clamping portion 312 is disengaged from the clamping groove, due to the reset of the reset elastic element 24, the locking shaft body 23 retracts to drive the locking bolt 21 to retract, the inductive switch 40 is changed from the closed state to the open state, at this time, the locking shaft mechanism 20 is restored to the unlocking state, the controller controls the motor to drive the cam to rotate about 90 degrees continuously, the cam leaves the inductive element 53, the inductive element 53 is changed from the closed state to the open state and sends a signal to the controller, and the controller controls the motor to stop driving, and waits for the next locking signal.

As shown in fig. 1, in this embodiment, a locking groove 13 matched with the latch bolt 21 is further disposed on the bottom plate 10, the locking groove 13 is disposed at an interval with the first hole of the lock shaft through hole, and when the latch bolt 21 extends, the latch bolt 21 is inserted into the locking groove 13 to complete locking. When the bolt 21 retracts, the bolt 21 is separated from the locking groove 13, and unlocking is completed.

The present embodiment also provides a switching method, including:

the locking state of the lock shaft mechanism 20 is an initial state, at this time, the bolt 21 of the lock shaft mechanism 20 extends out of the lock shaft through hole, the limiting mechanism 30 is matched with the limiting part 22 of the lock shaft mechanism 20, and the safety mechanism 50 restrains the limiting mechanism 30;

when the system identifies an external unlocking signal, the safety mechanism 50 acts to make the limiting mechanism 30 lose the constraint of the safety mechanism 50;

the limiting mechanism 30 is separated from the limiting part 22;

the inductive switch 40 induces the position change of the limit mechanism 30, and the inductive switch 40 sends out a signal of an unlocking state;

meanwhile, the lock shaft mechanism 20 loses the limit constraint of the limit mechanism 30 and resets, the lock bolt 21 retracts into the lock shaft through hole, and the lock shaft mechanism 20 is in an unlocking state;

when the lock is closed, external force pushes the lock shaft mechanism 20 to enable the lock tongue 21 to extend out of the lock shaft through hole;

the limiting mechanism 30 is matched with the limiting part 22;

the inductive switch 40 induces the position change of the limit mechanism 30, and the inductive switch 40 sends out a signal of a locking state;

the safety mechanism 50 starts to act after receiving the signal of the locking state, and is matched with the limiting mechanism 30 to provide safety for the limiting mechanism 30, and the lockset is restored to the initial state.

The switching method of the present embodiment ensures that the inductive switch 40 is triggered while the limit part 22 is completely engaged with the limit mechanism 30, thereby solving the problem that the conventional inductive switch 40 is triggered in advance or in a delayed manner. Meanwhile, the safety mechanism 50 of the embodiment provides one more guarantee for limiting the position of the limiting mechanism 30, and avoids the phenomenon that the locking reliability is affected because the limiting part 22 is separated from the limiting mechanism 30 under the condition that the lock is impacted by external force.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.