CN111305659A

CN111305659A - Lock core and lock

Info

Publication number: CN111305659A
Application number: CN202010122069.7A
Authority: CN
Inventors: 李保福; 杨绍华; 李启平; 张永成
Original assignee: Zhuhai Unitech Power Technology Co Ltd
Current assignee: Zhuhai Unitech Power Technology Co Ltd
Priority date: 2020-02-26
Filing date: 2020-02-26
Publication date: 2020-06-19
Anticipated expiration: 2040-02-26
Also published as: WO2021169180A1; CN111305659B; EP4023844A1

Abstract

The application provides a lock core and tool to lock belongs to the tool to lock field. The lock core comprises a base body, a lock tongue, a cam, an energy storage piece, a driving device and a one-way locking mechanism. The spring bolt is movably arranged on the base body. The cam is rotatably arranged on the base body and has a first position for preventing the bolt from backing and a second position for allowing the bolt to backing. The energy storage part is connected between the driving device and the cam, when the spring bolt locks the cam, the driving device works to enable the energy storage part to store elastic force, and when the spring bolt unlocks the cam, the elastic force can drive the cam to rotate. The one-way locking mechanism is used for limiting the bolt to retreat after the bolt extends out to unlock the cam located at the second position. After the spring bolt stretches out and unlocks the cam of second position, one-way locking mechanism then plays the effect that the restriction spring bolt moved back, even the in-process lock beam that outwards pulls out the lock beam applys thrust to the spring bolt, the spring bolt also can't move back to the position with the cam locking, the spring bolt will block all the time in the lock beam of lock beam lacks in, the pseudo-shutting phenomenon can not appear.

Description

Lock core and lock

Technical Field

The application relates to a tool to lock field particularly, relates to a lock core and tool to lock.

Background

In the existing lock, multiple lock beams are generally used for locking or unlocking through a lock tongue of a lock core so as to realize locking or unlocking. In the locking process, after the spring bolt stretches out and enters the lock beam and is lacked, when the lock beam is pulled, the spring bolt can move backwards under the action of the lock beam and cannot complete the locking action, so that the hidden danger of pseudo locking (the user considers that the lock beam can be pulled out quickly in practice) is caused.

Disclosure of Invention

The embodiment of the application provides a lock core and a lockset, so that the problem that an existing lock core has a pseudo locking phenomenon is solved.

In a first aspect, an embodiment of the present application provides a lock cylinder, which includes a base, a lock tongue, a cam, an energy storage element, 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 body and has a first position for preventing the bolt from backing and a second position for allowing the bolt to back;

the energy storage part is connected between the driving device and the cam, when the spring bolt locks the cam, the driving device works to enable the energy storage part to accumulate elastic force, and when the spring bolt unlocks the cam, the elastic force can drive the cam to rotate;

the one-way locking mechanism is used for limiting the retraction of the lock bolt after the lock bolt extends out to unlock the cam positioned at the second position.

Among the above-mentioned technical scheme, under the state of unblanking, the cam is located the second position, and under this condition, if the spring bolt receives external force (the periphery wall of lock beam supports with the spring bolt and leans on and to the force that exerts of spring bolt) when the cam lock is in the second position, the cam can't rotate. When the lock is unlocked under the condition, the driving device works to enable the energy storage piece to accumulate elastic force, the lock tongue extends out to unlock the cam located at the second position in the process that the lock beam is pulled outwards to enable the lock tongue to extend out and be clamped into the lock beam notch on the lock beam, and the cam finally rotates to the first position under the action of the elastic force accumulated by the energy storage piece to achieve locking. After the spring bolt stretches out and unlocks the cam of second position, one-way locking mechanism then plays the effect that the restriction spring bolt moved back, even the in-process lock beam that outwards pulls out the lock beam applys thrust to the spring bolt, the spring bolt also can't move back to the position with the cam locking, the spring bolt will block all the time into the lock beam of lock beam and lack in, the lock beam can't be pulled out, pseudo-blocking phenomenon can not appear.

In some embodiments of the present application, the one-way latch mechanism includes a latch member movably disposed on the base;

the latch member has a third position and a fourth position;

the bolt retraction can drive the locking piece to move from the fourth position to the third position, so that the bolt locks the cam in the second position;

when the bolt 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 piece from moving from the fourth position to the third position, and the locking piece can limit the bolt to retreat.

Among the above-mentioned technical scheme, the lock piece can move between third position and fourth position, and the removal through the spring bolt can change the position of lock piece. After the spring bolt is to be located the cam unblock of second position, the cam will rotate under the effect of the elastic force that the energy storage spare is accumulated to make the cam prevent the locking piece from moving to the third position from the fourth position, make the locking piece can't get back to the third position that can be located the cam locking of second position, finally make the locking piece restrict the spring bolt and roll back. The lock tongue is limited to retreat in a mode that the cam prevents the locking piece from moving, and the structure form is simple.

In some embodiments of the present application, the one-way locking mechanism further comprises a resilient member;

the elastic piece is used for driving the locking piece to move from the third position to the fourth position in the process that the bolt extends to unlock the cam located at the second position.

In the above structure, the elastic member plays a role of resetting the lock member. The locking piece moves from the third position to the fourth position under the action of the elastic piece in the process of unlocking the cam located at the second position by extending the lock tongue.

In some embodiments of the present application, the locking member is movably disposed to the base.

Among the above-mentioned technical scheme, change the position of locking piece through the mode that removes, the mode that changes the position of locking piece is simple.

In some embodiments of the present application, the direction of movement of the lockout member is perpendicular to the direction of movement of the locking bolt.

Among the above-mentioned technical scheme, the moving direction of locking piece perpendicular to the moving direction of spring bolt, this kind of structure make the locking piece block by the cam when unable removal, and the locking piece can play fine blocking effect to the spring bolt.

In some embodiments of the present application, the cam is provided with a slot for inserting the locking member;

when the cam is located at the second position and the locking piece is located at the third position, the locking piece is inserted into the slot;

when the cam is located at the second position and the locking piece is located at the fourth position, the locking piece exits from the slot.

Among the above-mentioned technical scheme, be equipped with on the cam and supply locking piece male slot, when the spring bolt will be located the cam locking of second position, the locking piece is inserted and is located in the slot, and at this moment, the locking piece also can play and prevent cam pivoted effect. The spring bolt stretches out the in-process that will be located the cam unblock of second position, and the locking piece will move to the fourth position, and at this moment, the cam is located the second position and the locking piece is located the fourth position, and the locking piece is located outside the slot. The cam after the unblock will take place to rotate under the effect of the elastic force that the energy storage piece is accumulational to make locking piece and slot stagger, the locking piece can't insert then mean in the slot, and the locking piece can't return to the third position from the fourth position, and the locking piece supports and leans on the back on the periphery wall of cam, then can restrict the spring bolt and move back backward.

In some embodiments of the present application, a blocking portion is fixedly disposed on the lock tongue;

the blocking part is used for abutting against the locking piece when the lock tongue retracts and driving the locking piece to move from a fourth position to a third position.

Among the above-mentioned technical scheme, the effect of transmission power is played to the block portion on the spring bolt. When the lock tongue retreats, the driving force can be transmitted to the locking piece through the blocking part, so that the locking piece moves from the fourth position to the third position. Under the condition that the cam prevents the locking piece from moving to the third position from the fourth position, the blocking part abuts against the locking piece, so that the blocking part cannot retreat, and the purpose of limiting the retraction of the lock tongue is achieved.

In some embodiments of the present application, the blocking portion has a guide slope for driving the movement of the locking member.

Among the above-mentioned technical scheme, the setting of the guide inclined plane on the blocking part makes the blocking part follow the spring bolt and move back the in-process and can drive the locking piece more easily and remove.

In some embodiments of the present application, a guiding chute is disposed on the lock tongue, a protrusion is disposed on the lock member, and the protrusion is clamped in the guiding chute;

the bolt retraction can drive the latch member to move from the fourth position to the third position.

Among the above-mentioned technical scheme, the protruding card on the lock piece is in the guide chute on the spring bolt, and the spring bolt can be directly transmits power for the lock piece to make the lock piece remove. The bolt retreats to move the driving locking piece from the fourth position to the third position, and the bolt extends to move the driving locking piece from the third position to the fourth position.

In some embodiments of the present application, the locking member is rotatably disposed on the base.

Among the above-mentioned technical scheme, change the position of lock piece through the pivoted mode, the mode that changes the position of lock piece is simple.

In some embodiments of the present application, the lock cylinder further comprises a controller;

the controller is used for controlling the driving device to drive the cam to rotate from the first position to the second position through the energy storage piece according to an unlocking signal, and controlling the driving device to drive the cam to rotate from the second position to the first position through the energy storage piece in a delayed mode.

In the technical scheme, the controller has the functions of controlling the driving device to work to realize unlocking and controlling the driving device to work again in a delayed mode to realize locking. When the controller receives the unlocking signal, the controller controls the driving device to act according to the unlocking signal, finally the cam rotates from the first position to the second position, and the lock bolt can return back to realize unlocking. After the preset time, the controller controls the driving device to act again, and finally the cam rotates from the second position to the first position, so that the cam can prevent the bolt from returning, and delayed locking is realized.

In some embodiments of the present application, the number of the locking tongues is two, and the two locking tongues are oppositely arranged on two sides of the cam.

Among the above-mentioned technical scheme, two spring bolts arrange in the both sides of cam relatively, and two spring bolts all can lock the lock beam, improve the lock core to the locking ability of lock beam.

In some embodiments of the present application, the outer peripheral wall of the cam includes two oppositely disposed convex arc surfaces and two oppositely disposed concave arc surfaces;

when the cam is located at the first position, each lock tongue abuts against one convex arc surface;

each locking tongue is aligned with one of the concave arcs when the cam is in the second position.

Among the above-mentioned technical scheme, the periphery wall of cam includes two convex cambered surfaces of relative arrangement and two concave cambered surfaces of relative arrangement, and the overall structure of cam is simple. When the cam is positioned at the first position, the two convex arc surfaces of the cam can respectively prevent the two lock tongues from returning; when the cam is located the second position, two spring bolts align with two concave cambered surfaces of cam respectively for two spring bolts all can roll back under the exogenic action.

In some embodiments of the present application, the drive arrangement includes a dial, a sheave, and a drive;

the driving plate and the grooved pulley are both rotatably arranged on the base body, and the driving plate, the grooved pulley and the base body form a grooved pulley mechanism;

the driving piece is used for driving the driving plate to rotate relative to the base body, and the energy storage piece is connected between the grooved wheel and the cam.

In the technical scheme, the driving plate, the grooved pulley and the base body form a grooved pulley mechanism, the mechanism is an irreversible transmission mechanism, namely the driving plate can drive the grooved pulley to rotate, and the grooved pulley cannot drive the driving plate to rotate.

In a second aspect, an embodiment of the present application provides a lock, including a lock body, a lock beam, and the lock cylinder of the first aspect;

the lock core is arranged in the lock body, and the lock tongue is used for locking the lock beam and the lock body.

Among the above-mentioned technical scheme, the lock core of tool to lock is at the energy storage shutting in-process, when extracting the lock beam, and the spring bolt gets into the lock beam of lock beam and lacks the back, and one-way locking mechanism can play one-way locking effect to the spring bolt, and the spring bolt can't withdraw from the lock beam of lock beam and lack, can not appear pseudo-shutting phenomenon.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

Fig. 1 is a schematic structural diagram of a lock cylinder provided in an embodiment of the present application at a first viewing angle;

fig. 2 is a schematic structural diagram of a lock cylinder provided in an embodiment of the present application at a second viewing angle;

FIG. 3 is an operational view of a lock cylinder (with a cam in a second position and a latch in a fourth position) according to an embodiment of the present disclosure, shown from a first perspective;

FIG. 4 is an operational view of the lock cylinder (with the cam in the second position and the latch member in the fourth position) shown from a second perspective according to an embodiment of the present disclosure;

FIG. 5 is a schematic diagram illustrating operation of a lock cylinder (with a cam in a first position and a latch member in a fourth position) according to an embodiment of the present disclosure;

FIG. 6 is a schematic diagram illustrating operation of a lock cylinder (with the cam in the second position and the latch member in the third position) according to an embodiment of the present disclosure;

FIG. 7 is a schematic illustration of an embodiment of a lock cylinder (with the cam in a position between the first and second positions and the latch member in a fourth position);

FIG. 8 is an exploded view of the drive assembly shown in FIG. 1;

FIG. 9 is a schematic view of the connection of the drive unit shown in FIG. 1 to a cam;

FIG. 10 is a schematic representation of the operation of a lock cylinder (cam in the second position and latch in the fourth position) according to other embodiments of the present application;

FIG. 11 is a schematic representation of the operation of a lock cylinder (cam in the second position and lock member in the third position) according to an alternate embodiment of the present application;

FIG. 12 is an operational schematic view of a lock cylinder (cam in the second position and latch in the fourth position) provided in accordance with yet another embodiment of the present application;

FIG. 13 is an operational schematic view of a lock cylinder (cam in the second position and lock out member in the third position) according to yet another embodiment of the present application;

fig. 14 is a schematic structural diagram of a lock provided in the embodiment of the present application.

Icon: 100-a lock cylinder; 10-a substrate; 20-a bolt; 21-a barrier; 211-a guide ramp; 22-a guide chute; 30-a cam; 31-convex arc surface; 32-concave arc surface; 33-a first stud; 34-a protruding shaft; 35-slot; 40-an energy storage member; 50-a drive device; 51-a dial; 52-sheave; 521-a second boss; 53-a drive member; 54-pinion gear; 55-bull gear; 60-one-way locking mechanism; 61-a lock; 611-a protrusion; 62-an elastic member; 70-a reset piece; 80-a mechanical lock cylinder; 81-lock core; 200-a lockset; 210-a lock body; 2101-keyhole; 220-a lock beam; 2201-shackle lack.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present application, it should be noted that the indication of orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship which is usually placed when the product of the application is used, or the orientation or positional relationship which is usually understood by those skilled in the art, or the orientation or positional relationship which is usually placed when the product of the application is used, and is only for the convenience of describing the application and simplifying the description, but does not indicate or imply that the indicated device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Examples

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

As shown in fig. 1 and 2, the present embodiment provides a lock cylinder 100, which includes a base 10, a locking bolt 20, a cam 30, an energy storage member 40, a driving device 50, and a one-way locking mechanism 60. Locking bolt 20 is movably disposed at base 10. Cam 30 is rotatably provided to base 10, and cam 30 has a first position preventing locking bolt 20 from being retracted and a second position allowing locking bolt 20 to be retracted. Energy storage member 40 is connected between driving device 50 and cam 30, and when bolt 20 locks cam 30, driving device 50 is operated to enable energy storage member 40 to accumulate elastic force, and when bolt 20 unlocks cam 30, elastic force can drive cam 30 to rotate. The one-way locking mechanism 60 is used to limit the retraction of the locking bolt 20 after the locking bolt 20 is extended to unlock the cam 30 located at the second position.

In the lock core 100 with the above structure, in the energy storage locking process, when the lock beam 220 is pulled out, and the bolt 20 enters the lock beam notch 2201 of the lock beam 220, the one-way locking mechanism 60 can play a one-way locking role for the bolt 20, so that the bolt 20 cannot exit from the lock beam notch 2201 of the lock beam 220, and the false locking phenomenon cannot occur. The operation of the lock cylinder 100 will be explained in detail below.

As shown in fig. 3 and 4, in the unlocked state, cam 30 is in the second position (cam 30 allows bolt 20 to retract), and at this time, lock beam 220 can be pulled out by applying an external force to lock beam 220. During the process of pulling out the strike 220, the strike 220 will push the locking bolt 20 back, causing the locking bolt 20 to exit the strike 2201 of the strike 220.

As shown in fig. 4 (fig. 4, cam 30 is in the second position), in the unlocked state, when locking bolt 20 is inserted into arc 2201, driving device 50 is operated to transmit power to cam 30 via energy storage member 40, thereby rotating cam 30 from the second position to the first position. As shown in fig. 5 (in fig. 5, the cam 30 is located at the first position), when the cam 30 rotates to the first position, the cam 30 has an effect of preventing the bolt 20 from backing, the bolt 20 cannot back, and the bolt 20 is inserted into the shackle notch 2201, so that the shackle 220 is locked, and the shackle 220 cannot be pulled out. During the locking process, the energy storage member 40 does not store energy, and the energy storage member 40 plays a role of transmitting power, that is, the power of the driving device 50 is directly transmitted to the cam 30.

As shown in fig. 6 (cam in second position in fig. 6). In the unlocked state, cam 30 is located at the second position, and in this case, if locking bolt 20 receives an external force (the outer peripheral wall of arc 220 abuts against locking bolt 20 and applies a force to locking bolt 20) to lock cam 30 at the second position, cam 30 cannot rotate. In this situation, when unlocking, actuating device 50 will make energy storage member 40 accumulate elastic force, and when strike 220 is pulled outward to make bolt 20 extend and snap into strike 2201 on strike 220, as shown in fig. 7, bolt 20 will unlock cam 30 in the second position, and cam 30 will rotate under the action of elastic force accumulated by energy storage member 40. After the lock tongue 20 extends out to unlock the cam 30 at the second position, the one-way locking mechanism 60 plays a role in limiting the retraction of the lock tongue 20, even if the lock beam 220 applies a pushing force to the lock tongue 20 in the process of pulling the lock beam 220 outwards, the lock tongue 20 cannot be retracted to the position where the cam 30 is locked, the lock tongue 20 is always clamped in the lock beam notch 2201 of the lock beam 220, the lock beam 220 cannot be pulled out, and a false locking phenomenon cannot occur.

In the locked state, cam 30 is in the first position, and when locking bolt 20 is inserted into arc 2201 and locking bolt 20 is not subjected to the axial force applied by arc 2201, to unlock the lock, actuating device 50 is operated to transmit power to cam 30 via energy storage member 40, thereby rotating cam 30 from the first position to the second position. During the unlocking process, the energy storage member 40 has no energy storage process, and the energy storage member 40 plays a role of transmitting action, i.e., 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 arc 2201 and the arc 220 is under tension, the arc 220 applies an axial pushing force to the lock tongue 20, the lock tongue 20 locks the cam 30, and the cam 30 cannot rotate. When the lock is unlocked, the driving device 50 works to enable the energy storage element 40 to accumulate elastic force, after the pulling force applied to the lock beam 220 is removed, the lock tongue 20 unlocks the cam 30, and the cam 30 drives the cam 30 to rotate to the second position under the action of the elastic force accumulated by the energy storage element 40, so that the lock is unlocked.

In this embodiment, the base 10 is a casing structure, and the latch bolt 20, the cam 30, the energy storage element 40, the driving device 50 and the one-way locking mechanism 60 are all disposed in the casing. One end of the locking tongue 20 may protrude from one side of the base 10.

A restoring member 70 for extending the locking bolt 20 from one side of the base 10 is provided between the locking bolt 20 and the base 10. Illustratively, the return member 70 is a spring.

As shown in fig. 6, when the end of locking bolt 20 abuts against the outer peripheral wall of strike 220, reset element 70 is in a compressed state; as shown in fig. 7, when strike 220 is pulled to align strike 2201 with locking bolt 20, locking bolt 20 is extended and inserted into strike 2201 by return 70.

Further, the lock cylinder 100 further comprises 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 controlling the driving device 50 to drive the cam 30 to rotate from the second position to the first position through the energy storage member 40 with a delay.

The controller has the functions of controlling the driving device 50 to work to realize unlocking and controlling the driving device 50 to work again in a delayed mode to realize locking. When a user sends an unlocking signal through the terminal, after the controller receives the unlocking signal, the controller controls the driving device 50 to act according to the unlocking signal, and finally the cam 30 rotates from the first position to the second position, and the lock bolt 20 can retreat to realize unlocking. After a preset time, the controller controls the driving device 50 to act again, and finally the cam 30 rotates from the second position to the first position, and the cam 30 can prevent the bolt 20 from backing, so that delayed locking is realized. Of course, the cam 30 may rotate clockwise during unlocking, and the cam 30 may rotate counterclockwise during locking; or during the unlocking process, the cam 30 rotates clockwise by a certain angle, and during the locking process, the cam 30 rotates clockwise by a certain angle again.

The controller is arranged in the base body 10, and the controller can be a single chip microcomputer, a PLC controller and the like. The controller and the terminal can realize signal transmission through Bluetooth. When the lock core is used, a user can firstly carry out Bluetooth connection on a terminal (a mobile phone, a tablet personal computer and the like) and the lock core 100, and after the Bluetooth connection is successful, the user can send an unlocking signal to the controller through the terminal.

In this embodiment, automatic locking is realized in a time-delay manner, and the time delay of the time-delay locking may be set according to specific conditions, and may be 5 seconds, 10 seconds, 20 seconds, and the like. In other embodiments, latching may be accomplished in other ways. For example, the controller controls the driving device 50 to operate to unlock according to the unlocking signal, and when locking is required, the user sends a locking signal to the controller through the terminal, and the controller controls the driving device 50 to operate and lock according to the locking 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 operate and lock according to the in-place signal detected by the sensor.

In the present embodiment, the lock cylinder 100 locks or unlocks the lock beam 220 by the movement of the lock tongue 20, and the lock tongue 20 may be one or more. Illustratively, the number of the locking tongues 20 is two, and the two locking tongues 20 are oppositely arranged on two sides of the cam 30. Two locking tongues 20 can lock the lock beam 220 on both sides, improving the locking ability of the lock beam 220 after the lock cylinder 100 is locked. Of course, in the case of one locking bolt 20, the lock cylinder 100 can only lock the strike 220 on one side.

As shown in fig. 2, the outer peripheral wall of the cam 30 includes two convex arc surfaces 31 arranged opposite to each other and two concave arc surfaces 32 arranged opposite to each other. As shown in fig. 4, when the cam 30 is located at the second position, each locking tongue 20 is aligned with one of the concave arc surfaces 32, both locking tongues 20 can retract after being subjected to an axial force, and both locking tongues 20 unlock the strike 220; as shown in fig. 5, when the cam 30 is located at the first position, each locking tongue 20 abuts against one of the convex arc surfaces 31, the two convex arc surfaces 31 of the cam 30 respectively prevent the two locking tongues 20 from retracting, and both the two locking tongues 20 lock the arc 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 fig. 6, in the unlocked state (the cam 30 is located at the second position), when the locking bolt 20 locks the cam 30 by abutting against the outer circumferential wall of the arc 220, the locking bolt 20 is inserted into the recess defined by the concave arc 32 of the cam 30, thereby restricting the rotation of the cam 30.

In the present embodiment, as shown in fig. 8 and 9, the driving device 50 includes a dial 51, a sheave 52, and a driving member 53 (not shown in fig. 9). The dial 51 and the sheave 52 are both rotatably provided in the base body 10, and the dial 51, the sheave 52 and the base body 10 constitute a sheave mechanism. The driving member 53 is used for driving the dial 51 to rotate relative to the base body 10, and the energy storage member 40 is connected between the grooved wheel 52 and the cam 30.

The dial 51, the grooved wheel 52 and the base body 10 form a grooved wheel mechanism, which is a non-reversible transmission mechanism, that is, the dial 51 can drive the grooved wheel 52 to rotate, and the grooved wheel 52 can not drive the dial 51 to rotate. After the energy storing member 40 stores the elastic force, the grooved wheel 52 cannot drive the dial 51 to rotate, and the elastic force stored in the energy storing member 40 can only drive the cam 30 to rotate, so that the grooved wheel 52 cannot be driven to rotate.

Illustratively, the driving member 53 is a motor fixed in the base 10, the motor is electrically connected to the control module, and the control module is configured to control the motor to rotate according to the unlocking signal to unlock, and delay the motor to rotate to lock.

The motor may directly rotate the dial 51, or may indirectly rotate the dial 51 through a transmission mechanism. Illustratively, as shown in fig. 8, the motor is connected to the dial 51 through a gear transmission mechanism. The gear train includes a pinion 54 and a bull gear 55, the pinion 54 being fixed to the output shaft of the motor, the bull gear 55 being fixed to the dial 51, the pinion 54 being in meshing engagement with the gear. When the motor works, the small gear 54 drives the large gear 55 to rotate, so that the dial 51 drives the grooved wheel 52 to rotate. The gearing between the motor and the dial 51 may act as a speed reduction.

Because the energy storage member 40 is connected between the grooved wheel 52 and the cam 30, when the cam 30 is locked and can not rotate, the motor can still drive the dial 51 and the grooved wheel 52 to rotate, so that the energy storage member 40 accumulates elastic force, the motor is prevented from rotating in a blocking manner due to the fact that the cam 30 can not rotate, and the motor can be protected from overload.

In other embodiments, the driving device 50 may have other structures, for example, the driving device 50 includes a worm wheel, a worm and a motor, the worm wheel and the worm are rotatably disposed in the base 10, the worm wheel is engaged with the worm, the cam 30 is fixed on the worm wheel, and an output shaft of the motor is connected with the worm. The motor operates to rotate the worm, which rotates the worm gear, and the cam 30 will rotate along with the worm gear. In the driving device 50, the worm can rotate the worm wheel, but the worm wheel cannot rotate the worm.

In this embodiment, energy storage member 40 is the torsional spring, realizes the energy storage through the torsional spring, and simple structure easily realizes.

With reference to fig. 9, a first protruding pillar 33 and a protruding shaft 34 coaxial with the cam 30 are disposed at one axial end of the cam 30, a second protruding pillar 521 is disposed at one axial end of the grooved pulley 52, the torsion spring is sleeved outside the protruding shaft 34, one free end of the torsion spring is hung on the first protruding pillar 33, the other free end of the torsion spring is hung on the second protruding pillar 521, and the cam 30 and the grooved pulley 52 rotate relatively to each other to enable the torsion spring to accumulate elastic force.

In other embodiments, the energy storage element 40 may have other structures, for example, the energy storage element 40 is an elastic rope, two ends of the elastic rope are fixed on the grooved pulley 52, the elastic rope is wound on the protruding shaft 34 of the cam 30, and the grooved pulley 52 rotates relative to the cam 30 to wind the elastic rope on the protruding shaft 34 gradually, so that the elastic rope can accumulate the elastic force.

As shown in fig. 4 (the locking member 61 is located at the fourth position in fig. 4) and fig. 6 (the locking member 61 is located at the third position in fig. 6), the one-way locking mechanism 60 includes a locking member 61 movably provided to the base 10. The locking member 61 has a third position and a fourth position. The bolt 20 retreating can drive the locking piece 61 to move from the fourth position to the third position, so that the bolt 20 locks the cam 30 located at the second position.

As shown in fig. 7 (the locking member 61 in fig. 7 is located at the fourth position), when the locking bolt 20 extends to unlock the cam 30 located at the second position, the accumulated elastic force of 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 can limit the locking bolt 20 to retreat.

The latch member 61 is movable between a third position and a fourth position, and the position of the latch member 61 is changeable by movement of the locking bolt 20. After the latch bolt 20 unlocks the cam 30 located at the second position, the cam 30 rotates 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, the locking member 61 cannot return to the third position where the cam 30 located at the second position can be locked, and finally the locking member 61 limits the retraction of the latch bolt 20. The cam 30 prevents the locking piece 61 from moving to limit the retraction of the locking bolt 20, and the structure form is simple.

Further, the one-way locking mechanism 60 further includes an elastic member 62, and the elastic member 62 is used for driving the locking member 61 to move from the third position to the fourth position during the process that the locking bolt 20 extends to unlock the cam 30 located at the second position.

The elastic member 62 functions to reset the locking member 61. During the process that the bolt 20 extends to unlock the cam 30 located 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. Illustratively, the resilient member 62 is a spring.

Alternatively, the lock member 61 may be movably provided to the base 10. The position of the lock member 61 is changed by moving, and the position of the lock member 61 is changed in a simple manner.

In this embodiment, the moving direction of the locking member 61 is perpendicular to the moving direction of the locking bolt 20. This arrangement provides a good stop for the latch tongue 20 by the locking member 61 when the locking member 61 is blocked from movement by the cam 30. In other embodiments, the moving direction of the locking member 61 and the moving direction of the locking bolt 20 may be acute or obtuse.

The cam 30 is provided with a slot 35 into which the lock 61 is inserted. When the cam 30 is located at the second position and the locking member 61 is located at the third position, the locking member 61 is inserted into the slot 35; when the cam 30 is located at the second position and the locking member 61 is located at the fourth position, the locking member 61 exits the insertion slot 35. Wherein, the slot 35 is opened on the convex arc surface 31 of the cam 30.

When the latch bolt 20 locks the cam 30 located at the second position, the locking member 61 is inserted into the slot 35, and at this time, the locking member 61 also plays a role in preventing the cam 30 from rotating. In the process that the locking bolt 20 extends to unlock the cam 30 located at the second position, the locking piece 61 moves to the fourth position, at this time, the cam 30 is located at the second position, the locking piece 61 is located at the fourth position, and the locking piece 61 is located outside the slot 35. The cam 30 after the unblock will take place to rotate under the effect of the elastic force that energy storage 40 is accumulated to make locking piece 61 stagger with slot 35, locking piece 61 can't insert then mean in slot 35, and locking piece 61 can't return to the third position from the fourth position, and locking piece 61 supports and leans on the back on the periphery wall of cam 30, then can restrict spring bolt 20 and move backwards.

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

A blocking portion 21 on the latch bolt 20 acts as a transmission force. When the locking tongue 20 is retracted, the blocking portion 21 may transmit a driving force to the locking member 61 to move the locking member 61 from the fourth position to the third position. When the cam 30 prevents the locking member 61 from moving from the fourth position to the third position, the blocking portion 21 abuts against the locking member 61, so that the blocking portion 21 cannot move back, and the purpose of limiting the retraction of the lock tongue 20 is achieved.

Further, the stopper 21 has a guide slope 211 for driving the movement of the lock member 61. This structure makes it easier for the blocking portion 21 to drive the movement of the locking piece 61 following the retraction of the locking tongue 20.

Illustratively, the blocking portion 21 has an L-shaped structure, one end of the blocking portion 21 is fixedly connected to the locking tongue 20, and the guiding inclined surface 211 is disposed at the other end of the blocking portion 21.

In this embodiment, the power of the locking tongue 20 is indirectly transmitted to the locking member 61 through the blocking portion 21, and in other embodiments, the locking tongue 20 may directly transmit the power to the locking member 61 to move the locking member 61. As shown in fig. 10 (the locking member in fig. 10 is in the fourth position) and fig. 11 (the locking member in fig. 11 is in the third position), the locking member 61 has a substantially L-shaped structure, the locking member 61 is provided with a protrusion 611, the locking tongue 20 is provided with the guiding inclined groove 22, and the protrusion 611 is clamped in the guiding inclined groove 22. The bolt 20 retreats to drive the locking piece 61 to move from the fourth position to the third position (the locking piece 61 is inserted into the slot 35), so that the bolt 20 locks the cam 30 located at the second position (the bolt 20 is inserted into the concave groove defined by the concave arc surface 32 of the cam 30). When the bolt 20 extends to unlock the cam 30 located at the second position (the bolt 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), the accumulated elastic force of the energy storage member 40 drives the cam 30 to rotate, the cam 30 rotates to enable the slot 35 on the cam 30 to be staggered with the locking member 61, the cam 30 plays a role in preventing the locking member 61 from moving from the fourth position to the third position, and the locking member 61 can limit the bolt 20 from moving backwards. When the locking bolt 20 is extended, the locking bolt 20 drives the locking member 61 to return, so that, on the basis of the structure, the elastic member 62 may not be arranged 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 be changed in other manners. For example, as shown in fig. 12 (in fig. 12, the locking member 61 is located at the fourth position) and fig. 13 (in fig. 13, the locking member 61 is located at the third position), 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 member as a whole, and an elastic member 62 is provided between the locking member 61 and the base 10. The bolt 20 retreats to drive the locking piece 61 to move from the fourth position to the third position (the locking piece 61 is inserted into one concave groove defined by the concave arc surface 32 of the cam 30), so that the bolt 20 locks the cam 30 located at the second position (the bolt 20 is inserted into the other concave groove defined by the concave arc surface 32 of the cam 30). When bolt 20 extends to unlock cam 30 located at the second position (bolt 20 and lock member 61 both exit from their corresponding recessed grooves), the accumulated elastic force of energy storage element 40 will drive cam 30 to rotate, cam 30 rotates to make the recessed grooves defined by concave arc surface 32 on cam 30 staggered with lock member 61, cam 30 then acts to prevent lock member 61 from rotating from the fourth position to the third position, and lock member 61 can limit bolt 20 from backing.

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

Illustratively, the cylinder 81 of the mechanical lock cylinder 80 is in transmission connection with the cam 30 through a transmission mechanism, the transmission mechanism comprises a gear and an incomplete gear, the gear is fixed on the cam 30, the incomplete gear is fixed on the cylinder 81, and the gear is meshed with the incomplete gear. When the mechanical key is inserted into the lock hole 2101 in the lock cylinder 81, the lock cylinder 81 can be rotated by rotating the key, and the lock cylinder 81 rotates to drive the incomplete gear to rotate, so that the cam 30 rotates along with the gear engaged with the incomplete gear, and manual unlocking or locking is realized.

In addition, as shown in fig. 14, an embodiment of the present application further provides a lock 200, which includes a lock body 210, a lock beam 220, and the lock cylinder 100 provided in the above embodiment. The lock cylinder 100 is installed in the lock body 210 and the locking bolt 20 is used to lock the arc 220 with the lock body 210.

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 arc 220 is inserted into the two lock holes 2101 on the lock body 210, if the arc 20 locks the arc 220 (the arc 20 is inserted into the arc notch 2201 of the arc 220, and the cam 30 is located at the first position), the arc 220 cannot be pulled out; if the lock cylinder 100 unlocks the shackle 220 (with the cam 30 in the second position), the shackle 220 can be pulled out of the lock hole 2101. In other embodiments, latch 200 may be a lock of other configurations, such as a padlock.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A lock cylinder, comprising:

a substrate;

the lock tongue is movably arranged on the base body;

a cam rotatably disposed on the base, the cam having a first position preventing the bolt from backing and a second position allowing the bolt to backing;

an energy storage member;

the energy storage part is connected between the driving device and the cam, when the spring bolt locks the cam, the driving device works to enable the energy storage part to store elastic force, and when the spring bolt unlocks the cam, the elastic force can drive the cam to rotate; and

and the one-way locking mechanism is used for limiting the retraction of the lock bolt after the lock bolt extends out to unlock the cam positioned at the second position.

2. The lock core of claim 1, wherein the one-way latch mechanism includes a latch member movably disposed on the base;

the latch member has a third position and a fourth position;

3. The lock cylinder of claim 2, wherein the one-way locking mechanism further comprises a resilient member;

4. The lock core of claim 2, wherein the locking member is movably disposed to the base.

5. The latch core of claim 4 wherein the direction of movement of said latch member is perpendicular to the direction of movement of said deadbolt.

6. The lock core of claim 4, wherein the cam is provided with a slot into which the latch member is inserted;

7. The lock core according to any one of claims 4 to 6, wherein a blocking part is fixedly arranged on the lock tongue;

the blocking part is used for abutting against the locking piece when the lock tongue retracts and driving the locking piece to move from the fourth position to the third position.

8. The lock core of claim 7, wherein the blocking portion has a guide ramp for driving movement of the locking member.

9. The lock core according to any one of claims 4 to 6, wherein a guide chute is arranged on the lock tongue, a protrusion is arranged on the locking piece, and the protrusion is clamped in the guide chute;

10. The latch core of claim 2 wherein said locking member is rotatably disposed on said base.

11. The lock cylinder of claim 1, further comprising a controller;

12. A lock comprising a lock body, a strike, and a plug according to any of claims 1-11;