WO2021169180A1

WO2021169180A1 - Lock cylinder and lock

Info

Publication number: WO2021169180A1
Application number: PCT/CN2020/106847
Authority: WO
Inventors: 金述强; 李保福; 杨绍华; 李启平; 张永成
Original assignee: 珠海优特物联科技有限公司
Priority date: 2020-02-26
Filing date: 2020-08-04
Publication date: 2021-09-02
Also published as: CN111305659A; CN111305659B; EP4023844A1

Abstract

The present application provides a lock cylinder and a lock, pertaining to the field of locks. The lock cylinder comprises a base, a lock tongue, a cam, an energy storage member, a driving device, and a one-way locking mechanism. The lock tongue is movably provided on the base. The cam is rotatably provided on the base. The cam has a first position in which the lock tongue is prevented from retracting and a second position in which the lock tongue is allowed to retract. The energy storage member is connected between the driving device and the cam. When the lock tongue locks the cam, the driving device operates to cause the energy storage member to store elastic force. When the lock tongue unlocks the cam, the elastic force drives the cam to rotate. The one-way locking mechanism is used to restrict retraction of the lock tongue after the lock tongue extends and unlocks the cam located in the second position. After the lock tongue extends and unlocks the cam in the second position, the one-way locking mechanism restricts retraction of the lock tongue. Even if a lock beam applies thrust to the lock tongue during a process in which the lock beam is pulled outwards, the lock tongue cannot retract to a position in which the lock tongue locks the cam, and the lock tongue always engages with a lock beam gap of the lock beam, thereby eliminating false locking.

Description

Cylinders and locks

Technical field

This application relates to the field of locks, and specifically to a lock core and locks.

Background technique

In the existing locks, the lock tongue of the lock cylinder is generally used to lock or unlock multiple lock beams to achieve locking or unlocking. During the locking process, after the lock tongue extends into the lack of the lock beam, when the lock beam is pulled, the lock tongue will retreat under the action of the lock beam. Quickly pull out the hidden danger of the lock beam.

Summary of the invention

Various embodiments of the present application provide a lock cylinder and a lock set to improve the problem of the pseudo-lock phenomenon in the existing lock cylinder.

In an embodiment of the present application, a lock core is provided, which includes a base, a lock tongue, a cam, an energy storage member, a driving device, and a one-way locking mechanism;

The lock tongue is movably arranged on the base body;

The cam is rotatably arranged on the base, and the cam has a first position that prevents the bolt from retreating and a second position that allows the bolt to retreat;

The energy storage member is connected between the driving device and the cam. When the lock tongue locks the cam, the driving device works to make the energy storage member accumulate elastic force. When the lock tongue unlocks the cam, the elastic force can drive the cam to rotate;

The one-way locking mechanism is used to restrict the lock tongue from retreating after the lock tongue is extended to unlock the cam located in the second position.

In the above technical solution, in the unlocked state, the cam is in the second position. In this case, if the lock tongue receives an external force (the outer wall of the lock beam abuts against the lock tongue and applies to the lock tongue), the cam is locked. In the second position, the cam cannot rotate. When unlocking in this case, the drive device will work to accumulate elastic force on the energy storage member. When the lock beam is pulled outwards to extend the lock tongue and snap into the lock beam on the lock beam, the lock tongue extends The cam at the second position is unlocked, and the cam will finally rotate to the first position under the action of the elastic force accumulated by the energy storage member to achieve locking. After the lock tongue extends to unlock the cam in the second position, the one-way locking mechanism plays a role in restricting the lock tongue from retreating. Even if the lock beam exerts a thrust on the lock tongue during the process of pulling the lock beam outwards, the lock tongue cannot be returned. To the position where the cam is locked, the lock tongue will always be stuck in the lock beam gap of the lock beam, the lock beam cannot be pulled out, and there will be no pseudo-locking phenomenon.

In a preferred embodiment of the present application, the one-way locking mechanism includes a locking member movably arranged on the base;

The locking member has a third position and a fourth position;

The retraction of the lock tongue can drive the locking member to move from the fourth position to the third position, so that the lock tongue can lock the cam in the second position;

When the lock tongue stretches out to unlock the cam located at the second position, the elastic force can drive the cam to rotate, so that the cam can prevent the lock piece from moving from the fourth position to the third position, so that the lock piece restricts the lock tongue from retreating.

In the above technical solution, the locking member can move between the third position and the fourth position, and the position of the locking member can be changed by the movement of the lock tongue. After the lock tongue unlocks the cam in the second position, the cam will rotate under the action of the elastic force accumulated by the energy storage member, so that the cam prevents the locking member from moving from the fourth position to the third position, making the locking member unable to return To the third position where the cam located at the second position can be locked, finally the locking member restricts the bolt from retreating. The movement of the locking piece is restricted by the cam to restrict the bolt from retreating, and the structure is simple.

In a preferred embodiment of the present application, the one-way locking mechanism further includes an elastic member;

The elastic member is used to drive the locking member to move from the third position to the fourth position when the lock tongue extends to unlock the cam at the second position.

In the above structure, the elastic member functions to reset the locking member. When the lock tongue is extended to unlock the cam located at the second position, the locking member will move from the third position to the fourth position under the action of the elastic member.

In a preferred embodiment of the present application, the locking member is movably arranged on the base body.

In the above technical solution, the position of the locking member is changed by moving, and the method of changing the position of the locking member is simple.

In a preferred embodiment of the present application, the moving direction of the locking member is perpendicular to the moving direction of the bolt.

In the above technical solution, the moving direction of the locking member is perpendicular to the moving direction of the bolt. This structure makes the locking member unable to move when blocked by the cam, the locking member can effectively block the bolt.

In a preferred embodiment of the present application, a slot for inserting the locking member is provided on the cam;

When the cam is at the second position and the locking element is at the third position, the locking element is inserted in the slot;

When the cam is at the second position and the locking member is at the fourth position, the locking member exits the slot.

In the above technical solution, the cam is provided with a slot for inserting the locking member. When the locking tongue locks the cam at the second position, the locking member is inserted into the slot. At this time, the locking member can also be inserted into the slot. Play the role of preventing the cam from rotating. During the process of unlocking the cam at the second position by the locking tongue, the locking member will move to the fourth position. At this time, the cam is in the second position, the locking member is in the fourth position, and the locking member is in the slot. outside. The unlocked cam will rotate under the action of the elastic force accumulated by the energy storage member, so that the locking member is staggered from the slot. The locking member cannot be inserted into the slot, which means that the locking member cannot move from the fourth position. Returning to the third position, after the locking member abuts on the outer peripheral wall of the cam, the locking tongue can be restricted from retreating.

In a preferred embodiment of the present application, a blocking part is fixedly provided on the lock tongue;

The blocking portion is used for abutting against the locking member when the lock tongue is retracted and driving the locking member to move from the fourth position to the third position.

In the above technical solution, the blocking portion on the bolt plays a role of transmitting force. When the bolt is retracted, the driving force can be transmitted to the locking member through the blocking portion, so that the locking member can move from the fourth position to the third position. In the case that the cam prevents the locking member from moving from the fourth position to the third position, since the blocking portion abuts against the locking member, the blocking portion cannot be retreated, thereby achieving the purpose of limiting the retreat of the bolt.

In a preferred embodiment of the present application, the blocking portion has a guiding inclined surface for driving the locking member to move.

In the above technical solution, the arrangement of the guide slope on the blocking portion makes it easier for the blocking portion to drive the lock member to move when the blocking portion retreats following the bolt.

In a preferred embodiment of the present application, a guide chute is provided on the lock tongue, and a protrusion is provided on the locking member, and the protrusion is stuck in the guide chute;

The retreat of the bolt can drive the locking member to move from the fourth position to the third position.

In the above technical solution, the protrusion on the locking member is stuck in the guide chute on the locking tongue, and the locking tongue can directly transmit power to the locking member to move the locking member. The retreat of the lock tongue moves the drive lock member from the fourth position to the third position, and the lock tongue extends to move the drive lock member from the third position to the fourth position.

In a preferred embodiment of the present application, the locking member is rotatably arranged on the base body.

In the above technical solution, the position of the locking member is changed by rotating, and the method of changing the position of the locking member is simple.

In a preferred embodiment of the present application, the lock cylinder further includes a controller;

The controller is used for controlling the driving device to rotate from the first position to the second position via the energy storage member driving cam according to the unlocking signal, and delaying control the driving device to rotate from the second position to the first position via the energy storage member driving the cam.

In the above technical solution, the controller has the function of controlling the driving device to work to realize unlocking, and delaying control of the driving device to work again to realize locking. After the controller receives the unlocking signal, the controller will control the drive device to act according to the unlocking signal, and finally make the cam rotate from the first position to the second position, and the lock tongue can be retracted to realize unlocking. After the preset time, the controller will control the driving device to act again, and finally make the cam rotate from the second position to the first position. The cam can prevent the bolt from retreating and realize the delayed locking.

In a preferred embodiment of the present application, there are two lock tongues, and the two lock tongues are arranged oppositely on both sides of the cam.

In the above technical solution, two lock tongues are arranged opposite to the two sides of the cam, and the two lock tongues can lock the lock beam, which improves the locking ability of the lock cylinder to the lock beam.

In a preferred embodiment of the present application, the outer peripheral wall of the cam includes two oppositely arranged convex arc surfaces and two oppositely arranged concave arc surfaces;

When the cam is in the first position, each lock tongue abuts against a convex arc surface;

When the cam is in the second position, each lock tongue is aligned with a concave arc surface.

In the above technical solution, the outer peripheral wall of the cam includes two oppositely arranged convex arc surfaces and two oppositely arranged concave arc surfaces, and the overall structure of the cam is simple. When the cam is in the first position, the two convex arc surfaces of the cam can respectively prevent the two locking tongues from retreating; when the cam is in the second position, the two locking tongues are aligned with the two concave arc surfaces of the cam respectively, so that the two The bolt can retreat under the action of external force.

In a preferred embodiment of the present application, the driving device includes a dial, a sheave and a driving member;

Both the dial and the sheave wheel are rotatably arranged on the base body, and the dial, the sheave wheel and the base body constitute the sheave wheel mechanism;

The driving member is used for driving the dial to rotate relative to the base body, and the energy storage member is connected between the sheave wheel and the cam.

In the above technical solution, the dial, the sheave and the base constitute the sheave mechanism, which is an irreversible transmission mechanism, that is, the dial can drive the sheave to rotate, but the sheave cannot drive the dial to rotate.

The application also provides a lock, including a lock body, a lock beam, and the above-mentioned lock cylinder;

The lock core is installed in the lock body, and the lock tongue is used to lock the lock beam and the lock body.

In the above technical solution, during the energy storage and locking process of the lock cylinder, when the lock beam is pulled out, after the lock tongue enters the lock beam of the lock beam, the one-way locking mechanism can play a one-way locking effect on the lock tongue. , The lock tongue cannot withdraw from the lock beam gap of the lock beam, and there will be no pseudo-locking phenomenon.

Description of the drawings

In order to more clearly describe the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings that need to be used in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application, and therefore do not It should be regarded as a limitation of the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative work.

FIG. 1 is a schematic structural diagram of a lock core provided by an embodiment of the application from a first perspective;

FIG. 2 is a schematic structural diagram of the lock core provided by an embodiment of the application from a second perspective; FIG.

FIG. 3 is a working schematic diagram of the lock cylinder (the cam is in the second position and the locking member is in the fourth position) provided by the embodiment of the application, from a first perspective;

4 is a working schematic diagram of the lock cylinder (the cam is in the second position and the locking member is in the fourth position) provided by the embodiment of the application from a second perspective;

FIG. 5 is a working schematic diagram of the lock cylinder (the cam is in the first position and the locking member is in the fourth position) provided by the embodiment of the application;

6 is a working schematic diagram of the lock cylinder (the cam is in the second position, and the locking member is in the third position) provided by the embodiment of the application;

FIG. 7 is a working schematic diagram of the lock cylinder (the cam is located between the first position and the second position, and the locking member is located at the fourth position) provided by the embodiment of the application;

Fig. 8 is an exploded view of the driving device shown in Fig. 1;

Fig. 9 is a schematic diagram of the connection between the driving device and the cam shown in Fig. 1;

FIG. 10 is a working schematic diagram of a lock cylinder (the cam is in the second position, and the locking member is in the fourth position) provided by other embodiments of the application;

FIG. 11 is a working schematic diagram of a lock cylinder (the cam is in the second position and the locking member is in the third position) provided by other embodiments of the application;

FIG. 12 is a working schematic diagram of a lock cylinder (the cam is in the second position and the locking member is in the fourth position) provided by still another embodiment of this application;

FIG. 13 is a working schematic diagram of a lock cylinder (the cam is in the second position and the locking member is in the third position) provided by still another embodiment of this application;

Fig. 14 is a schematic structural diagram of a lock provided by an embodiment of the application.

Among them, the above drawings include the following reference signs:

100. Lock core; 10, base body; 20, bolt; 21, blocking part; 211, guide slope; 22, guide chute; 30, cam; 31, convex arc surface; 32, concave arc surface; 33, first Convex post; 34. Convex shaft; 35. Slot; 40. Energy storage part; 50. Drive device; 51. Dial; 52. Sheave wheel; 521. Second convex post; 53, Drive part; 54, Pinion 55. Big gear; 60. One-way locking mechanism; 61. Locking part; 611. Protrusion; 62. Elastic part; 70. Reset part; 80. Mechanical lock cylinder; 81. Cylinder; 200. Lock; 210, lock body; 2101, key hole; 220, lock beam; 2201, lack of lock beam.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of the present application, but not all of the embodiments. The components of the embodiments of the present application generally described and shown in the drawings herein may be arranged and designed in various different configurations.

The embodiment of the present application provides a lock cylinder 100, which can effectively avoid the pseudo-locking phenomenon. The specific structure of the lock cylinder 100 will be described in detail below with reference to the accompanying drawings.

As shown in FIGS. 1 and 2, an embodiment of the present application provides a lock cylinder 100, which includes a base 10, a lock tongue 20, a cam 30, an energy storage member 40, a driving device 50 and a one-way locking mechanism 60. The bolt 20 is movably disposed on the base 10. The cam 30 is rotatably disposed on the base 10, and the cam 30 has a first position that prevents the bolt 20 from retreating and a second position that allows the bolt 20 to retreat. The energy storage member 40 is connected between the driving device 50 and the cam 30. When the lock tongue 20 locks the cam 30, the driving device 50 works to make the energy storage member 40 accumulate elastic force. When the lock tongue 20 unlocks the cam 30, The elastic force can drive the cam 30 to rotate. The one-way locking mechanism 60 is used to restrict the locking tongue 20 from retreating after the locking tongue 20 is extended to unlock the cam 30 in the second position.

In the lock cylinder 100 with the above structure, when the lock beam 220 is pulled out during the energy storage lock process, the lock tongue 20 enters the lock beam gap 2201 of the lock beam 220. To lock, the tongue 20 cannot withdraw from the lock beam 2201 of the lock beam 220, and the pseudo-locking phenomenon will not occur. The working principle of the lock cylinder 100 will be described in detail below.

As shown in Figures 3 and 4, in the unlocked state, the cam 30 is in the second position (the cam 30 allows the tongue 20 to retreat). At this time, the lock beam 220 can be pulled out by applying an external force to the lock beam 220. In the process of pulling out the lock beam 220, the lock beam 220 pushes the lock tongue 20 back, so that the lock tongue 20 exits the lock beam gap 2201 of the lock beam 220.

As shown in Figure 4 (the cam 30 is in the second position in Figure 4), in the unlocked state, with the lock tongue 20 inserted into the lock beam 2201, if it is to be locked, the drive device 50 can work through the energy storage member 40 The power is transmitted to the cam 30, so that the cam 30 is rotated from the second position to the first position. As shown in Figure 5 (the cam 30 is in the first position in Figure 5), when the cam 30 rotates to the first position, the cam 30 has the function of preventing the bolt 20 from retreating, and the bolt 20 cannot retreat because the bolt 20 is inserted in The lock beam 2201 is missing, so that the lock beam 220 is locked, so that the lock beam 220 cannot be pulled out. In the above-mentioned locking process, the energy storage member 40 has no energy storage process, and the energy storage member 40 plays a role of transmitting power, that is, directly transmitting the power of the driving device 50 to the cam 30.

As shown in Figure 6 (the cam is in the second position in Figure 6). In the unlocked state, the cam 30 is in the second position. In this case, if the lock tongue 20 receives an external force (the outer peripheral wall of the lock beam 220 abuts the lock tongue 20 and applies the force to the lock tongue 20), the cam 30 is locked. When stopped at the second position, the cam 30 cannot rotate. When unlocking in this case, the drive device 50 will work to accumulate the elastic force of the energy storage member 40. When the lock beam 220 is pulled outwards to extend the lock tongue 20 and snap into the lock beam 2201 on the lock beam 220 As shown in FIG. 7, the lock tongue 20 unlocks the cam 30 at the second position, and the cam 30 will rotate under the action of the elastic force accumulated by the energy storage member 40. After the lock tongue 20 is extended to unlock the cam 30 in the second position, the one-way locking mechanism 60 plays a role in restricting the lock tongue 20 from retreating, even if the lock beam 220 faces the lock tongue 20 when the lock beam 220 is pulled out. When thrust is applied, the lock tongue 20 cannot be retracted to the position where the cam 30 is locked, and the lock tongue 20 will always be stuck in the lock beam gap 2201 of the lock beam 220, and the lock beam 220 cannot be pulled out, and the pseudo-locking phenomenon will not occur.

In the locked state, the cam 30 is in the first position. When the lock tongue 20 is inserted into the lock beam gap 2201, and the lock tongue 20 is not subjected to the axial force exerted by the lock beam gap 2201, if the lock is to be unlocked, the driving device 50 works The power can be transmitted to the cam 30 through the energy storage member 40, so that the cam 30 can rotate from the first position to the second position. During the unlocking process, the energy storage member 40 does not have an energy storage process, and the energy storage member 40 functions as a transmission action, that is, the power of the driving device 50 is directly transmitted to the cam 30. However, in the locked state, when the lock tongue 20 is inserted into the lock beam 2201 and the lock beam 220 is pulled, the lock beam 220 will apply an axial thrust to the lock tongue 20, and the lock tongue 20 will lock the cam 30, and the cam 30 cannot Rotate. When the lock is unlocked, the driving device 50 will cause the energy storage member 40 to accumulate elastic force. After the pulling force received by the lock beam 220 is removed, the lock tongue 20 unlocks the cam 30, and the cam 30 drives the cam under the action of the elastic force accumulated by the energy storage member 40 Turn 30 to the second position to unlock the lock.

In this embodiment, the base 10 is a housing structure, and the lock tongue 20, the cam 30, the energy storage member 40, the driving device 50 and the one-way locking mechanism 60 are all arranged in the housing. One end of the lock tongue 20 can protrude from one side of the base body 10.

A reset piece 70 is provided between the lock tongue 20 and the base body 10 to make the lock tongue 20 protrude from one side of the base body 10. Exemplarily, the restoring member 70 is a spring.

As shown in FIG. 6, when the end of the lock tongue 20 abuts against the outer peripheral wall of the lock beam 220, the reset member 70 is in a compressed state; as shown in FIG. 7, when the lock beam 220 is pulled, the lock beam 2201 and When the lock tongue 20 is aligned, the lock tongue 20 is extended and inserted into the lock beam gap 2201 under the action of the reset member 70.

Further, the lock cylinder 100 further includes a controller for controlling the driving device 50 to drive the cam 30 to rotate from the first position to the second position through the energy storage member 40 according to the unlocking signal, and delay control the driving device 50 to pass the energy storage member. 40 drives the cam 30 to rotate from the second position to the first position.

The controller has the function of controlling the driving device 50 to work to realize unlocking, and delaying control of the driving device 50 to work again to realize locking. When the user sends an unlocking signal through the terminal, after the controller receives the unlocking signal, the controller will control the drive device 50 to act according to the unlocking signal, and finally make the cam 30 rotate from the first position to the second position, and the tongue 20 can be retracted. unlock. After the preset time, the controller will control the driving device 50 to act again, and finally turn the cam 30 from the second position to the first position. The cam 30 can prevent the bolt 20 from retreating and realize the delayed locking. Of course, it can be that the cam 30 rotates clockwise during the unlocking process, and the cam 30 rotates counterclockwise during the locking process; it can also be that the cam 30 rotates clockwise for a certain angle during the unlocking process, and the cam 30 rotates clockwise again during the locking process. angle.

The controller is arranged in the base body 10, and the controller may be a single-chip microcomputer, a PLC controller, or the like. The controller and the terminal can realize signal transmission through Bluetooth. When in use, the user can first connect the terminal (mobile phone, tablet computer, etc.) with the lock cylinder 100 via Bluetooth. After the Bluetooth connection is successful, the user can send an unlock signal to the controller through the terminal.

In this embodiment, the automatic locking is realized by a delay method, and the delay time of the delay locking can be set according to specific conditions, and can be 5 seconds, 10 seconds, 20 seconds, and so on. In other embodiments, locking can also be achieved in other ways. For example, the controller controls the drive device 50 to act to unlock according to the unlock signal. When locking is required, the user sends a lock signal to the controller through the terminal, and the controller controls the drive device 50 to act and lock according to the lock signal. For another example, the position of the lock beam 220 is detected by a sensor, and the control module controls the driving device 50 to act and lock according to the in-position signal detected by the sensor.

In this embodiment, the lock cylinder 100 locks or unlocks the lock beam 220 through the movement of the lock tongue 20, and the lock tongue 20 may be one or more. Exemplarily, there are two lock tongues 20, and the two lock tongues 20 are arranged opposite to the two sides of the cam 30. The two lock tongues 20 can lock the lock beam 220 on both sides, which improves the locking ability of the lock beam 220 after the lock cylinder 100 is locked. Of course, when there is one lock tongue 20, the lock cylinder 100 can only lock the lock beam 220 on one side.

As shown in FIG. 2, the outer peripheral wall of the cam 30 includes two convex arc surfaces 31 arranged oppositely and two concave arc surfaces 32 arranged oppositely. As shown in Figure 4, when the cam 30 is in the second position, each lock tongue 20 is aligned with a concave arc surface 32, and the two lock tongues 20 can be retracted after being subjected to an axial force, and the two lock tongues 20 will lock The beam 220 is unlocked; as shown in FIG. 5, when the cam 30 is in the first position, each lock tongue 20 abuts on a convex arc surface 31, and the two convex arc surfaces 31 of the cam 30 prevent the two lock tongues 20 from returning. Withdraw, the two lock tongues 20 both lock the lock beam 220.

In this embodiment, when the cam 30 is in the first position, the cam 30 will reach the second position after rotating 90 degrees.

As shown in Figure 6, in the unlocked state (the cam 30 is in the second position), when the lock tongue 20 is pressed against the outer peripheral wall of the lock beam 220 to lock the cam 30, the lock tongue 20 is inserted into the cam 30 The concave arc surface 32 defines the concave groove, thereby restricting the rotation of the cam 30.

In this embodiment, as shown in FIGS. 8 and 9, the driving device 50 includes a dial 51, a sheave 52 and a driving member 53 (not shown in FIG. 9). Both the dial 51 and the sheave 52 are rotatably arranged in the base 10, and the dial 51, the sheave 52 and the base 10 constitute a sheave mechanism. The driving member 53 is used to drive the dial 51 to rotate relative to the base 10, and the energy storage member 40 is connected between the sheave 52 and the cam 30.

The dial 51, the sheave 52 and the base 10 constitute a sheave mechanism, which is an irreversible transmission mechanism, that is, the dial 51 can drive the sheave 52 to rotate, but the sheave 52 cannot drive the dial 51 to rotate. After the energy storage element 40 accumulates the elastic force, since the sheave wheel 52 cannot drive the dial 51 to rotate, the elastic force accumulated by the energy storage element 40 can only drive the cam 30 to rotate, but cannot drive the sheave wheel 52 to rotate.

Exemplarily, the driving member 53 is a motor fixed in the base body 10, and the motor is electrically connected to a control module. The control module is used to control the rotation of the motor according to the unlocking signal to realize unlocking, and delay the control of the rotation of the motor to realize locking.

It should be noted that the motor can directly drive the dial 51 to rotate, or indirectly drive the dial 51 to rotate through a transmission mechanism. Exemplarily, as shown in FIG. 8, the motor and the dial 51 are connected by a gear transmission mechanism. The gear transmission mechanism includes a small gear 54 and a large gear 55. The small gear 54 is fixed to the output shaft of the motor, the large gear 55 is fixed to the dial 51, and the small gear 54 meshes with the gear. When the motor is working, the small gear 54 drives the large gear 55 to rotate, so that the dial 51 drives the sheave 52 to rotate. The gear transmission mechanism between the motor and the dial 51 can reduce speed.

Since the energy storage element 40 is connected between the sheave wheel 52 and the cam 30, when the cam 30 is locked and cannot be rotated, the motor can still drive the dial 51 and the sheave wheel 52 to rotate, so that the energy storage element 40 can accumulate elastic force and avoid In addition, the motor is blocked due to the inability of the cam 30 to rotate, which can play a role in overload protection for the motor.

In other embodiments, the driving device 50 may also have other structures. For example, the driving device 50 includes a worm wheel, a worm, and a motor. , The output shaft of the motor is connected with the worm. The work of the motor drives the worm to rotate, the worm drives the worm wheel to rotate, and the cam 30 will follow the worm wheel to rotate together. In the driving device 50, the worm can drive the worm wheel to rotate, but the worm wheel cannot drive the worm to rotate.

In this embodiment, the energy storage member 40 is a torsion spring, and the energy storage is realized by the torsion spring, which has a simple structure and is easy to implement.

9, the axial end of the cam 30 is provided with a first convex column 33 and a convex shaft 34 coaxial with the cam 30, and an axial end of the sheave 52 is provided with a second convex column 521, and the torsion spring is sleeved on On the outside of the convex shaft 34, one free end of the torsion spring is hung on the first boss 33, and the other free end of the torsion spring is hung on the second boss 521. The relative rotation of the cam 30 and the sheave 52 can make the torsion The spring accumulates elastic force.

In other embodiments, the energy storage member 40 may also have other structures. For example, the energy storage member 40 is an elastic rope, both ends of the elastic rope are fixed on the sheave 52, and the elastic rope is wound on the convex shaft 34 of the cam 30. The sheave 52 rotates relative to the cam 30 to gradually tighten the elastic rope on the convex shaft 34, so that the elastic rope can accumulate elastic force.

As shown in Figure 4 (the locking member 61 in Figure 4 is in the fourth position) and Figure 6 (the locking member 61 is in the third position in Figure 6), the one-way locking mechanism 60 includes a movably disposed on the base 10锁锁件61。 Locking parts 61. The lock member 61 has a third position and a fourth position. The retreat of the locking tongue 20 can drive the locking member 61 to move from the fourth position to the third position, so that the locking tongue 20 locks the cam 30 at the second position.

As shown in Figure 7 (the locking member 61 in Figure 7 is in the fourth position), when the locking tongue 20 extends to unlock the cam 30 in the second position, the elastic force accumulated by the energy storage member 40 can drive the cam 30 to rotate , So that the cam 30 can prevent the locking member 61 from moving from the fourth position to the third position, so that the locking member 61 restricts the bolt 20 from retreating.

The locking member 61 can move between the third position and the fourth position, and the position of the locking member 61 can be changed by the movement of the locking tongue 20. After the locking tongue 20 unlocks the cam 30 at the second position, the cam 30 will rotate under the action of the elastic force accumulated by the energy storage member 40, so that the cam 30 prevents the locking member 61 from moving from the fourth position to the third position. As a result, the locking member 61 cannot return to the third position where the cam 30 at the second position can be locked, and finally the locking member 61 restricts the locking tongue 20 from retreating. The movement of the locking member 61 is restricted by the cam 30 to restrict the bolt 20 from retreating, and the structure is simple.

Further, the one-way locking mechanism 60 further includes an elastic member 62, which is used to drive the locking member 61 to move from the third position to the second position when the lock tongue 20 is extended to unlock the cam 30 at the second position. Four positions.

The elastic member 62 functions to reset the locking member 61. When the lock tongue 20 is extended to unlock the cam 30 at the second position, the locking member 61 will move from the third position to the fourth position under the action of the elastic member 62. Exemplarily, the elastic member 62 is a spring.

Optionally, the locking member 61 is movably disposed on the base body 10. The position of the locking member 61 is changed by moving, and the method of changing the position of the locking member 61 is simple.

In this embodiment, the moving direction of the locking member 61 is perpendicular to the moving direction of the lock tongue 20. With this structure, when the locking member 61 is blocked by the cam 30 and cannot move, the locking member 61 can effectively block the lock tongue 20. In other embodiments, the moving direction of the locking member 61 and the moving direction of the bolt 20 may also be an acute angle or an obtuse angle.

In addition, the cam 30 is provided with a slot 35 into which the locking member 61 is inserted. When the cam 30 is in the second position and the locking member 61 is in the third position, the locking member 61 is inserted into the slot 35; when the cam 30 is in the second position and the locking member 61 is in the fourth position, the locking Piece 61 exits slot 35. Wherein, the slot 35 is opened on the convex arc surface 31 of the cam 30.

When the locking tongue 20 locks the cam 30 at the second position, the locking member 61 is inserted into the slot 35. At this time, the locking member 61 can also function to prevent the cam 30 from rotating. When the lock tongue 20 is extended to unlock the cam 30 in the second position, the locking member 61 will move to the fourth position. At this time, the cam 30 is in the second position and the locking member 61 is in the fourth position. The stop 61 is located outside the slot 35. The unlocked cam 30 will rotate under the action of the elastic force accumulated by the energy storage member 40, so that the locking member 61 and the slot 35 are staggered. The locking member 61 cannot be inserted into the slot 35, which means that the lock is locked. The member 61 cannot return from the fourth position to the third position. After the locking member 61 abuts on the outer peripheral wall of the cam 30, the locking tongue 20 can be restricted from retreating.

Optionally, a blocking portion 21 is fixedly provided on the lock tongue 20, and the blocking portion 21 is used for abutting against the locking member 61 when the locking tongue 20 is retracted and driving the locking member 61 to move from the fourth position to the third position.

The blocking portion 21 on the bolt 20 plays a role of transmitting force. When the bolt 20 retracts, the driving force can be transmitted to the locking member 61 through the blocking portion 21, so that the locking member 61 can move from the fourth position to the third position. In the case where the cam 30 prevents the locking member 61 from moving from the fourth position to the third position, since the blocking portion 21 abuts against the locking member 61, the blocking portion 21 cannot retreat, thereby restricting the bolt 20 from retreating. the goal of.

In addition, the blocking portion 21 has a guide slope 211 for driving the lock 61 to move. This structure makes it easier to drive the locking member 61 to move when the blocking part 21 follows the bolt 20 retreating.

Exemplarily, the blocking portion 21 has an L-shaped structure, one end of the blocking portion 21 is fixedly connected to the bolt 20, and the guiding inclined surface 211 is provided on the other end of the blocking portion 21.

In this embodiment, the power of the tongue 20 is indirectly transmitted to the locking member 61 through the blocking portion 21. In other embodiments, the power of the locking tongue 20 may be directly transmitted to the locking member 61 to make the locking member 61 61 moves. As shown in Figure 10 (the locking member in Figure 10 is in the fourth position) and Figure 11 (the locking member in Figure 11 is in the third position), the locking member 61 is substantially in an L-shaped structure, and the locking member 61 is A protrusion 611 is provided, a guide chute 22 is provided on the lock tongue 20, and the protrusion 611 is clamped in the guide chute 22. The locking tongue 20 moves back to move the driving locking member 61 from the fourth position to the third position (the locking member 61 is inserted in the slot 35), so that the locking tongue 20 locks the cam 30 at the second position ( The lock tongue 20 is inserted into the concave groove defined by the concave arc surface 32 of the cam 30). When the lock tongue 20 extends to unlock the cam 30 at the second position (the lock tongue 20 exits the concave groove defined by the concave arc surface 32 of the cam 30, and the locking member 61 exits the slot 35 on the cam 30), energy is stored The elastic force accumulated by the member 40 rotates the driving cam 30. The rotation of the cam 30 makes the slot 35 on the cam 30 and the locking member 61 stagger, and the cam 30 prevents the locking member 61 from moving from the fourth position to the third position. Function, the locking member 61 can restrict the bolt 20 from retreating. When the locking tongue 20 is extended, the locking tongue 20 will reset the driving locking member 61. Therefore, on the basis of this structure, the elastic member 62 may not be provided between the locking member 61 and the base 10.

It should be noted that in other embodiments, the position of the locking member 61 can also be changed in other ways. For example, as shown in FIG. 12 (in FIG. 12, the locking member 61 is at the fourth position) and FIG. 13 (the locking member 61 is at the third position in FIG. 13), the locking member 61 is rotatably disposed on the base 10, That is, the locking member 61 is switched between the third position and the fourth position by rotating. The locking member 61 is an L-shaped hook-shaped member as a whole, and an elastic member 62 is provided between the locking member 61 and the base 10. The lock tongue 20 retreats to move the driving lock member 61 from the fourth position to the third position (the lock member 61 is inserted into a recessed groove defined by the concave arc surface 32 of the cam 30), so that the lock tongue 20 will The cam 30 at the second position is locked (the lock tongue 20 is inserted into another recessed groove defined by the concave arc surface 32 of the cam 30). When the lock tongue 20 is extended to unlock the cam 30 at the second position (both the lock tongue 20 and the locking member 61 exit the corresponding recessed grooves), the elastic force accumulated by the energy storage member 40 will drive the cam 30 to rotate, The cam 30 rotates so that the concave groove defined by the concave arc surface 32 on the cam 30 is staggered from the locking member 61. The cam 30 prevents the locking member 61 from rotating from the fourth position to the third position, and the locking member 61 is The bolt 20 can be restricted from retreating.

Further, with continued reference to FIG. 1, the lock cylinder 100 further includes a mechanical lock cylinder 80, and the cylinder 81 of the mechanical lock cylinder 80 is drivingly connected with the cam 30.

Exemplarily, the cylinder 81 of the mechanical lock cylinder 80 is in transmission connection with the cam 30 through a transmission mechanism. The transmission mechanism includes a gear and an incomplete gear. The gear is fixed to the cam 30, the incomplete gear is fixed to the cylinder 81, and the gear and the incomplete gear Meshing. When the mechanical key is inserted into the lock hole 2101 in the lock cylinder 81, turning the key can make the lock cylinder 81 rotate, and the rotation of the lock cylinder 81 drives the incomplete gear to rotate, so that the cam 30 follows the gear that meshes with the incomplete gear to rotate. Manually unlock or lock.

In addition, as shown in FIG. 14, an embodiment of the present application also provides a lock 200, which includes a lock body 210, a lock beam 220 and the lock cylinder 100 provided in the foregoing embodiment. The lock cylinder 100 is installed in the lock body 210, and the lock tongue 20 is used to lock the lock beam 220 and the lock body 210 tightly.

In this embodiment, the lock 200 is a U-shaped lock, the lock beam 220 is a U-shaped structure, and the lock body 210 is provided with two lock holes 2101 into which the lock beam 220 is inserted. After the lock beam 220 is inserted into the two lock holes 2101 on the lock body 210, if the lock tongue 20 locks the lock beam 220 (the lock tongue 20 is inserted into the lock beam gap 2201 of the lock beam 220, and the cam 30 is in the first position) , The lock beam 220 cannot be pulled out; if the lock cylinder 100 unlocks the lock beam 220 (the cam 30 is in the second position), the lock beam 220 can be pulled out from the lock hole 2101. In other embodiments, the lock 200 may also be a lock of other structural forms, such as a padlock.

The above are only preferred embodiments of the application, and are not used to limit the application. For those skilled in the art, the application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included in the protection scope of this application.

Claims

A lock cylinder is characterized in that it comprises:

Matrix

A lock tongue, which is movably arranged on the base body;

A cam, the cam is rotatably disposed on the base, the cam has a first position that prevents the bolt from retreating and a second position that allows the bolt to retreat;

Energy storage

A driving device, the energy storage member is connected between the driving device and the cam, and when the locking tongue locks the cam, the operation of the driving device enables the energy storage member to accumulate elastic force, When the lock tongue unlocks the cam, the elastic force can drive the cam to rotate; and

A one-way locking mechanism is used for restricting the locking tongue from retreating after the locking tongue is extended to unlock the cam located in the second position.
The lock cylinder according to claim 1, wherein the one-way locking mechanism comprises a locking member movably arranged on the base body;

The locking member has a third position and a fourth position;

The retreat of the lock tongue can drive the locking member to move from the fourth position to the third position, so that the lock tongue locks the cam at the second position;

When the lock tongue extends to unlock the cam located at the second position, the elastic force can drive the cam to rotate, so that the cam can prevent the locking member from moving from the fourth position To the third position, so that the locking member restricts the bolt from retreating.
The lock cylinder according to claim 2, wherein the one-way locking mechanism further comprises an elastic member;

The elastic member is used to drive the locking member to move from the third position to the fourth position when the lock tongue extends to unlock the cam at the second position.
The lock cylinder according to claim 2, wherein the locking member is movably disposed on the base body.
The lock cylinder according to claim 4, wherein the movement direction of the locking member is perpendicular to the movement direction of the lock tongue.
The lock cylinder according to claim 4, wherein the cam is provided with a slot into which the locking member is inserted;

When the cam is in the second position and the locking element is in the third position, the locking element is inserted into the slot;

When the cam is at the second position and the locking member is at the fourth position, the locking member exits the slot.
The lock cylinder according to any one of claims 4-6, wherein the lock tongue is fixedly provided with a blocking part;

The blocking portion is used for abutting against the locking member when the lock tongue is retracted and driving the locking member to move from the fourth position to the third position.
8. The lock cylinder according to claim 7, wherein the blocking portion has a guiding inclined surface for driving the locking member to move.
The lock cylinder according to any one of claims 4-6, wherein the lock tongue is provided with a guide chute, the locking member is provided with a protrusion, and the protrusion is locked in the In the guide chute;

The retreat of the locking tongue can drive the locking member to move from the fourth position to the third position.
The lock cylinder according to claim 2, wherein the locking member is rotatably disposed on the base body.
The lock cylinder according to claim 1, wherein the lock cylinder further comprises a controller;

The controller is used for controlling the driving device to drive the cam from the first position to the second position through the energy storage member according to the unlocking signal, and delaying control the driving device to pass the energy storage A member drives the cam to rotate from the second position to the first position.
A lock, characterized by comprising a lock body, a lock beam, and the lock cylinder according to any one of claims 1-11;

The lock core is installed in the lock body, and the lock tongue is used to lock the lock beam with the lock body.