Lock

Abstract

The invention discloses a lockset which comprises a body, a pair of clamping jaws capable of rotating are arranged in the body, one end of each clamping jaw can hook a lock hook, a torsional spring capable of enabling one end of each clamping jaw to expand outwards is arranged between each clamping jaw and the body, the lockset further comprises a sliding block, and the sliding block can be located between the two clamping jaws. The two sides of the sliding block are provided with inclined faces capable of being matched with the other ends of the clamping jaws, and a spring is arranged between the sliding block and the body. The lock further comprises a check block, a step face is arranged on the sliding block, and when the lock is locked, the check block is matched with the step face in an abutting mode. The lock further comprises a motor capable of driving the check block to move and a shifting rod, mechanical unlocking and electronic unlocking can be achieved through the lock, and meanwhile violent unlocking can be prevented.

Description

Technical Field

[0001] The present invention relates to a lock, and more specifically to a hidden electronic lock for use in the fields of vending machine door cabinets, shared equipment cabinets, automobiles, etc., and relates to anti-tensile force unlocking technology and anti-violence technology. Background Art

[0002] It is mainly used for storing items inside express cabinets. The locks are locked by buckling the lock hook. When the cabinet is in use, especially the expanding items, there will be an outward force on the cabinet door. When the door lock is subjected to a certain outward pulling force, the central control unlocking may not be able to unlock it. When this small electromagnetic lock is subjected to a certain pulling force, the lock will be stuck and cannot be unlocked. If a larger pulling force is applied, the lock will be opened, and the cabinet door is prone to being opened, which may easily cause the loss of items inside the cabinet. Summary of the invention

[0003] In order to solve the above technical problems, the purpose of the present invention is to provide a lock that can solve the problems of being unable to open the lock due to tensile force and being able to open the lock against violence.

[0004] The present invention is achieved through the following technical solutions:

[0005] A lock comprises a body, wherein a pair of rotatable claws are arranged in the body, one end of the claws can hook a lock hook, a torsion spring is arranged between the claws and the body to enable one end of the claws to stretch outward, and also comprises a slider, wherein the slider can be located between the two claws, and both sides of the slider are provided with inclined surfaces that can cooperate with the other end of the claws, and a spring is arranged between the slider and the body; it also comprises a stopper, wherein the slider is provided with a step surface, and when the lock is locked, the stopper abuts and cooperates with the step surface; it also comprises a motor and a lever that can drive the stopper to move.

[0006] In the embodiment of the present invention, one end of the lever can be connected to the stopper, the other end of the lever can extend out of the body, the lever can rotate relative to the body, and a reset member is provided between the lever and the body so that the lever can move synchronously with the stopper.

[0007] In an embodiment of the present invention, two blocks are arranged in the body, and the two blocks are located on both sides of the slider; it also includes a first movable block and a second movable block, and a first linkage member is arranged between the first movable block and the second movable block, and the first linkage member can make the first movable block and the second movable block move in opposite directions, the first movable block can be connected with a block, and the second movable block can be connected with another block, the motor can drive the first movable block to move, and the lever can drive the second movable block to move.

[0008] In an embodiment of the present invention, a second linkage member is also included, and the motor can be connected to the first movable block via the second linkage member; the first linkage member and the second linkage member include a turntable and a clamping block arranged on the circumferential side of the turntable, and the first movable block and the second movable block are both provided with clamping grooves, and the two clamping blocks on the first linkage member can be clamped into the clamping grooves, so that when the first linkage member rotates, the first movable block and the second movable block are driven to move in opposite directions; a long groove is provided on the first movable block and / or the second movable block, and the clamping block on the second linkage member can extend into the long groove.

[0009] In the embodiment of the present invention, the first movable block and the second movable block are both provided with tongues, and the stop block is provided with an opening, and the tongue can be inserted into the opening to enable the first movable block and the second movable block to drive the stop block to move.

[0010] In the embodiment of the present invention, a fixing seat is arranged in the body, a stopper is arranged on each side of the fixing seat, and a return spring is arranged between the stopper and the fixing seat.

[0011] In an embodiment of the present invention, the other end of the claw maintains contact and cooperation with the side walls of the slider under the action of the torsion spring; the slider includes a first section, a second section and a third section arranged from top to bottom, the inclined surface is arranged on the side of the second section, the width of the first section is greater than the width of the third section, when the other end of the claw cooperates with the first section, the lock is in a locked state, and when the other end of the claw cooperates with the third section, the lock is in an unlocked state.

[0012] In the embodiment of the present invention, the step surface is arranged below the third section, a first guide surface is arranged on the sliding block below the step surface, a second guide surface is arranged above the stop block, and the first guide surface can be matched and connected with the second guide surface.

[0013] In the embodiment of the present invention, a roller is provided at the other end of the clamping claw, and the roller can contact and cooperate with the two side walls of the slider, and the middle part of the clamping claw is connected to the body via a cylindrical pin.

[0014] In the embodiment of the present invention, a spring is sleeved on the outer periphery of the sliding block below the first guide surface, and the other end of the spring acts on the body.

[0015] A lock of the present invention has the following beneficial effects: the lock can still be unlocked when the cabinet door is subjected to a certain pulling force and the central control unlocking cannot be unlocked, and at the same time, the problem of violent lock picking can be solved, thereby improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the locked state in the present invention. Figure 1 .

[0018] Figure 2 It is a schematic diagram of the locked state in the present invention. Figure 2 .

[0019] Figure 3 It is a schematic diagram of the unlocking state in the present invention. Figure 1 .

[0020] Figure 4 It is a schematic diagram of the unlocking state in the present invention. Figure 2 .

[0021] Figure 5 It is a schematic diagram of the motor unlocking in the present invention.

[0022] Figure 6 It is a schematic diagram of unlocking by lever in the present invention.

[0023] Figure 7 It is an exploded view of the present invention.

[0024] Figure 8 It is a schematic diagram of the matching of the slider in the present invention.

[0025] Fig. 9 It is a schematic diagram of the first linkage member (or the second linkage member) in the present invention. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the invention claimed for protection, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0029] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0031] Referring to the drawings of the specification, a lock comprises a body 100, wherein a pair of rotatable claws 10 are arranged in the body, one end of the claws can hook a lock hook 110, the lock hook is annular, when the claws are hooked, it is in a locked state, and when they are not hooked, it is in an unlocked state, a torsion spring 11 is arranged between the claws and the body, which can stretch one end of the claws outward, the claws can be an arc-shaped block, and also comprises a slider 20, the slider can be located between the two claws, and both sides of the slider are provided with inclined surfaces 21 that can cooperate with the other end of the claws, and a spring 22 is arranged between the slider and the body; it also comprises a stopper 30, the slider is provided with a step surface 23, when the lock is in the locked state, the stopper abuts and cooperates with the step surface; it also comprises a motor 40 and a lever 50 that can drive the stopper to move, the motor and the lever can both realize the unlocking function, and can be achieved without interfering with each other.

[0032] Preferably, one end of the lever 50 can be connected to the block, and the other end of the lever can extend out of the body. The lever can rotate relative to the body. A reset member 51 is provided between the lever and the body. The reset member can also be a torsion spring so that the lever can move synchronously with the block. The lever can drive the lateral movement of the block by driving the tongue of the second movable block.

[0033] Furthermore, two blocks are arranged in the body, and the two blocks are located on both sides of the slider; it also includes a first movable block 61 and a second movable block 62, and a first linkage member 71 is arranged between the first movable block and the second movable block, and the first linkage member can make the first movable block and the second movable block move in opposite directions, and can also realize the simultaneous movement of the two movable blocks, the first movable block can be connected with a block, and the second movable block can be connected with another block, the motor can drive the first movable block to move, and the lever can drive the second movable block to move, when the motor is driven, the lever does not rotate, and when the lever is driven, the motor does not rotate. It also includes a second linkage member 72, and the motor can be connected to the first movable block via the second linkage member; the first linkage member and the second linkage member include a turntable 73 and a clamping block 74 arranged on the circumferential side of the turntable, and the first movable block and the second movable block are both provided with a clamping slot 63, and the two clamping blocks on the first linkage member can be clamped into the clamping slot, so that when the first linkage member rotates, the first movable block and the second movable block are driven to move in opposite directions; the first movable block and / or the second movable block are provided with a long groove 64, and the clamping block on the second linkage member can extend into the long groove. Because of the long groove, when the lever drives the movable block to move, the second linkage member and the motor do not rotate, but under the action of the clamping slot, the first movable block and the second movable block can be linked.

[0034] Furthermore, the first movable block and the second movable block are both provided with tongues 65, and the stopper is provided with an opening 31, and the tongue can be inserted into the opening to enable the first movable block and the second movable block to drive the stopper to move.

[0035] Preferably, a fixing seat 32 is provided in the body, a stopper is provided on each side of the fixing seat, and a return spring 33 is provided between the stopper and the fixing seat, so that the stopper moves toward the step surface and remains stuck, thereby maintaining a locked state.

[0036] Furthermore, the other end of the claw is kept in contact with the side walls of the slider under the action of the torsion spring; the slider includes a first section 24, a second section 25 and a third section 26 arranged from top to bottom, the inclined surface is arranged beside the second section, the width of the first section is greater than the width of the third section, when the other end of the claw cooperates with the first section, the lock is in a locked state, and when the other end of the claw cooperates with the third section, the lock is in an unlocked state. The step surface is arranged below the third section, and a first guide surface 27 is arranged on the slider below the step surface, and a second guide surface 34 is arranged above the stopper, and the first guide surface can be connected with the second guide surface to realize the smooth opening of the stopper when the lock is dropped. The other end of the claw is provided with a roller 12, which can contact and cooperate with the two side walls of the slider to reduce friction and noise, and the middle part of the claw is connected to the body through a cylindrical pin 13. A spring is sleeved on the outer periphery of the slider below the first guide surface, and the other end of the spring acts on the body, so that when the block is separated, the slider moves up to unlock, and at the same time, the lock hook can push the slider down to lock.

[0037] In the present invention, a second linkage is driven by the rotation of the motor, and the second linkage moves the two movable blocks to open to both sides, and the two movable blocks pull the two blocks apart. At this time, the slider in the middle is no longer restricted and will be bounced upward by the spring. There is a torsion spring on the claw, which continuously gives an opening force to one end (upper end) of the claw. When the slider bounces up to a certain height, the claw will open the opening due to the inclined surface of the slider, so that the claw is separated from the lock buckle to achieve unlocking. Mechanical unlocking method: Pulling the lever will slide the second movable block to the right, and the first movable block will move to the left due to the first linkage set in the middle. Without conflicting with the second linkage of the motor, the two movable blocks and the block are moved to achieve unlocking, and at the same time, mechanical and electronic unlocking do not interfere with each other. When the motor is reversed at a fixed time or the mechanical lever is released, the block will be reset to the left and right due to the spring reset; then press the lock hook to drive the slider to push down to achieve locking. Locked state: The slider is restricted by the block and remains in the locked state. Unlocked state: The slider is not restricted by the block and will be pushed up by the spring to achieve unlocking. The opening and closing of the claw is mainly controlled by adding a straight surface to an inclined surface. When in the locked state, the claw is subjected to force on the straight surface of the first section, forcibly pulling the lock hook, and the force is all applied to the slider, and the unlocking will not occur due to the pulling force. A roller is provided at the other end (lower end) of the claw. The roller and the slider are in rolling friction, which can greatly reduce the friction force and make it easier to unload the force when the 20KG pulling force is applied. At the same time, by adding a first linkage, the motor unlocking and mechanical unlocking can act on the same mechanism. When the motor unlocks, the first movable block and the second movable block move in two directions at the same time, and the first linkage will rotate accordingly. When the mechanical unlocking is performed, the motor outlet and the second linkage remain in the locked state, and the force of the lever acts on the second movable block. The first movable block will move in the opposite direction synchronously due to the first linkage, while the second linkage and the motor will not rotate. Moreover, the two blocks can prevent the lock from being unlocked by knocking. When knocking on the left side, the left side may be bounced open, but the right side will not be knocked; when knocking on the right side, the right side may be bounced open, but the left side will not be knocked, thus maintaining the safety of the lock.

[0038] The above description shows and describes the preferred embodiments of the present invention. As mentioned above, it should be understood that the present invention is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the invention concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not depart from the spirit and scope of the present invention, and should be within the scope of protection of the claims attached to the present invention.

Claims

1. A lock, comprising a body, characterized in that: The body is provided with a pair of rotatable claws, one end of the claws can hook the lock hook, a torsion spring is provided between the claws and the body to stretch one end of the claws outward, and also includes a slider, the slider can be located between the two claws, both sides of the slider are provided with inclined surfaces that can cooperate with the other end of the claws, a spring is provided between the slider and the body; it also includes a stopper, the slider is provided with a step surface, when the lock is locked, the stopper abuts and cooperates with the step surface; it also includes a motor and a lever that can drive the stopper to move.

2. A lock according to claim 1, characterized in that: One end of the lever can be connected to the stopper, the other end of the lever can extend out of the body, the lever can rotate relative to the body, and a reset member is arranged between the lever and the body so that the lever can move synchronously with the stopper.

3. A lock according to any one of claims 1 or 2, characterized in that: The body is provided with two blocks, which are located on both sides of the slider; the body also includes a first movable block and a second movable block, a first linkage member is provided between the first movable block and the second movable block, the first linkage member can make the first movable block and the second movable block move in opposite directions, the first movable block can be connected with one block, the second movable block can be connected with another block, the motor can drive the first movable block to move, and the lever can drive the second movable block to move.

4. A lock according to claim 3, characterized in that: It also includes a second linkage member, and the motor can be connected to the first movable block via the second linkage member; the first linkage member and the second linkage member include a turntable and a clamping block arranged on the circumferential side of the turntable, and the first movable block and the second movable block are both provided with a clamping groove, and the two clamping blocks on the first linkage member can be clamped into the clamping groove, so that when the first linkage member rotates, the first movable block and the second movable block are driven to move in opposite directions; a long groove is provided on the first movable block and / or the second movable block, and the clamping block on the second linkage member can extend into the long groove.

5. A lock according to claim 4, characterized in that: The first movable block and the second movable block are both provided with tongues, and the stopper is provided with an opening, and the tongue can be inserted into the opening, so that the first movable block and the second movable block drive the stopper to move.

6. A lock according to claim 5, characterized in that: A fixing seat is arranged in the body, a stopper is arranged on each side of the fixing seat, and a return spring is arranged between the stopper and the fixing seat.

7. A lock according to any one of claims 1, 2, 4-6, characterized in that: The other end of the claw is kept in contact with the side walls of the slider under the action of the torsion spring; the slider includes a first section, a second section and a third section arranged from top to bottom, the inclined surface is arranged on the side of the second section, the width of the first section is greater than the width of the third section, when the other end of the claw is matched with the first section, the lock is in a locked state, and when the other end of the claw is matched with the third section, the lock is in an unlocked state.

8. A lock according to claim 7, characterized in that: The step surface is arranged below the third section, a first guide surface is arranged on the sliding block below the step surface, a second guide surface is arranged above the stopper, and the first guide surface can be matched and connected with the second guide surface.

9. A lock according to claim 8, characterized in that: The other end of the clamping claw is provided with a roller, and the roller can be in contact with and cooperate with the two side walls of the sliding block. The middle part of the clamping claw is connected with the body via a cylindrical pin.

10. A lock according to claim 9, characterized in that: A spring is sleeved on the outer periphery of the sliding block below the first guide surface, and the other end of the spring acts on the body.

Images