Locking mechanism and storage cabinet

Abstract

The utility model discloses a locking mechanism and a storage cabinet. The locking mechanism comprises a lock box; the locking piece is rotationally connected to the lock box, and part of the structure of the locking piece is exposed out of the lock box to be matched with an external structure to achieve locking; the limiting piece is rotationally connected to the lock box; the driving piece is used for driving the limiting piece to rotate so as to release limitation on the locking piece; the driving piece is an electromagnetic driving piece, and the electromagnetic driving piece drives the limiting piece to rotate through attraction force generated by electrification; when the locking piece is in the locking state, the limiting piece abuts against the edge of the locking piece under the action of gravity so as to limit reverse rotation of the locking piece. When the locking piece is unlocked, the driving piece drives the limiting piece to rotate so as to relieve limitation on the locking piece, and the driving piece only generates driving force in the unlocking process. The limiting piece is provided with a balance weight component, and the limiting piece is driven by the gravity of the balance weight component to rotate to abut against the edge of the locking piece so as to limit reverse rotation of the locking piece. According to the scheme, more energy can be saved, the working state can be more stable, and the problem of mistaken unlocking caused by vibration and shaking is solved.

Description

Technical Field

[0001] The utility model relates to a locking component, in particular to a locking mechanism and a storage cabinet. Background Art

[0002] Locking mechanisms are core components for ensuring the safety of items and are widely used in safes, lockers, and other equipment. Currently, most common locking mechanisms use electromagnetic locks to achieve locking and unlocking functions. Their typical structure includes a solenoid valve, a valve plug, and a spring. The spring's force extends the valve plug to lock the item. To unlock, the solenoid valve generates an attractive force that overcomes the spring's force, pulling the valve plug back in to release the lock.

[0003] Specifically, the locking principle of the existing electromagnetic lock is: after the valve bolt is extended under the action of the spring, it will abut or block the locking components such as the lock tongue, restricting the rotation of the locking components, thereby achieving the locking of the cabinet door and the cabinet body; when unlocking, the solenoid valve needs to be continuously energized to generate attraction, keeping the valve bolt in the retracted state, releasing the restriction on the locking components, and allowing the cabinet door to be opened.

[0004] However, the above prior art has the following significant drawbacks:

[0005] Insufficient stability: Because the spring force must match the solenoid valve's attraction (if the force is too strong, the solenoid valve will have difficulty retracting the valve plug), the spring force is typically too low. When the equipment is subject to external disturbances such as vibration or shaking, the valve plug can easily overcome the small spring force and unexpectedly retract, causing the locking component to mislock and seriously affecting the reliability of the locking mechanism.

[0006] High energy consumption: To maintain the unlocked state, the solenoid valve needs to be continuously energized to maintain the attraction to the valve plug, which will result in high energy consumption. Especially for battery-powered equipment, frequent power consumption will significantly shorten the battery life and increase maintenance costs. Utility Model Content

[0007] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a locking mechanism and a storage cabinet that can be more energy-efficient, and can make the working state more stable, and alleviate the problem of mislocking due to vibration and shaking.

[0008] To achieve the above objectives, the present invention provides the following technical solutions:

[0009] A locking mechanism comprising:

[0010] Lock box;

[0011] A locking member rotatably connected to the lock box, wherein a portion of the locking member is exposed from the lock box to cooperate with an external structure to achieve locking;

[0012] a limiting member, rotatably connected to the lock box;

[0013] a driving member, configured to drive the restricting member to rotate so as to release the restriction on the locking member;

[0014] The driving member is an electromagnetic driving member, and the electromagnetic driving member drives the limiting member to rotate by the attraction generated by power supply;

[0015] In which, when the locking member is in a locked state, the limiting member abuts against the edge of the locking member under the action of gravity to limit its reverse rotation; when the locking member is unlocked, the driving member drives the limiting member to rotate to release the restriction on the locking member, and the driving member only generates driving force during the unlocking process; the limiting member is provided with a counterweight component, and the limiting member drives the limiting member to rotate and abut against the edge of the locking member through the gravity of the counterweight component to limit its reverse rotation.

[0016] As a further improvement of the present invention, the counterweight component and the limiting component are integrally formed.

[0017] As a further improvement of the present invention, the counterweight component is formed by bending the limiting component.

[0018] As a further improvement of the present invention, a lock tongue is provided on the locking piece, and the part of the lock tongue exposed from the lock box is provided with a raised mating portion, which is used to cooperate with the edge of the external structure to abut and drive the locking piece to rotate, so as to lock the external structure.

[0019] As a further improvement of the present invention, when the locking member is unlocked, the locking member contacts the external structure and rotates, and the mating portion extends along with the rotation of the locking member, waiting for the next mating edge of the external structure to abut.

[0020] As a further improvement of the present invention, the matching portion is hook-shaped and is used to abut against the edge of the external structure.

[0021] As a further improvement of the present invention, the lock box is provided with a notch at a position corresponding to the matching portion. When the locking member is rotated to lock, the matching portion is at least partially accommodated in the notch; when the locking member is unlocked, the matching portion extends from the notch.

[0022] As a further improvement of the present invention, when the locking member is in a locked state, the matching portion is completely accommodated in the notch.

[0023] A storage cabinet comprises a cabinet body and a cabinet door rotatably mounted on the cabinet body, wherein the cabinet door is provided with a locking mechanism as described in any one of the above improved solutions; the locking member is used to cooperate with the edge of the cabinet body corresponding to the cabinet door to lock or unlock.

[0024] A storage cabinet comprises a cabinet body and a cabinet door rotatably mounted on the cabinet body, wherein the cabinet door is provided with a locking mechanism as described in any one of the above improved schemes; the locking piece is used to cooperate with the edge of the cabinet body corresponding to the cabinet door for locking; the matching portion is used to cooperate with the edge of the cabinet body corresponding to the cabinet door to abut and drive the locking piece to rotate, so that the lock tongue hooks the edge of the cabinet body to lock the cabinet door; when the cabinet door is opened, the lock tongue abuts the cabinet body and drives the locking piece to rotate, thereby driving the matching portion to extend.

[0025] The beneficial effects of the present invention are as follows: by arranging the cooperation between the limiting part and the driving part, the counterweight part of the limiting part and the gravity are used to realize the restriction of the locking part. Compared with the structure relying on the spring elastic force in the prior art, the anti-vibration and anti-shaking capabilities can be effectively improved, the mis-locking can be avoided, and the stability is significantly improved; at the same time, the driving part is only energized for a short time during the unlocking process, and there is no need for continuous power supply, which greatly reduces energy consumption and solves the endurance problem caused by the continuous power consumption of the solenoid valve in the prior art. It is especially suitable for battery-powered equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the three-dimensional structure of the lock box of the present invention (unlocked state);

[0027] Figure 2 This is a schematic diagram of the three-dimensional structure of the lock box of the utility model (locked state);

[0028] Figure 3 This is a schematic diagram of the three-dimensional structure of the locking mechanism of the present invention (locked state);

[0029] Figure 4 This is a three-dimensional structural diagram of the locking mechanism of the present invention from another perspective (locked state);

[0030] Figure 5 This is a schematic front view of the locking mechanism of the present invention (locked state);

[0031] Figure 6 This is a schematic diagram of the three-dimensional structure of the locking mechanism of the present invention (unlocked state);

[0032] Figure 7 This is a three-dimensional structural diagram of the locking mechanism of the present invention from another perspective (unlocked state);

[0033] Figure 8 This is a schematic front view of the locking mechanism of the present invention (unlocked state).

[0034] Figure numbers: 1, lock box; 2, locking member; 3, limiting member; 4, driving member; 5, counterweight member; 6, lock tongue; 7, matching part; 8, notch. DETAILED DESCRIPTION

[0035] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0036] Reference Figure 1-8 As shown,

[0037] A locking mechanism comprising:

[0038] Lock box 1;

[0039] The locking member 2 is rotatably connected to the lock box 1, and a portion of the structure of the locking member 2 is exposed from the lock box 1 to cooperate with the external structure to achieve locking;

[0040] The limiting member 3 is rotatably connected to the lock box 1;

[0041] A driving member 4 is used to drive the limiting member 3 to rotate so as to release the restriction on the locking member 2;

[0042] The driving member 4 is an electromagnetic driving member, which drives the limiting member 3 to rotate by the attraction force generated by power supply;

[0043] Among them, when the locking member 2 is in a locked state, the limiting member 3 abuts the edge of the locking member 2 under the action of gravity to limit its reverse rotation; when the locking member 2 is unlocked, the driving member 4 drives the limiting member 3 to rotate to release the restriction on the locking member 2, and the driving member 4 only generates driving force during the unlocking process; the limiting member 3 is provided with a counterweight component 5, and the limiting member 3 drives the limiting member 3 to rotate and abut the edge of the locking member 2 through the gravity of the counterweight component 5 to limit its reverse rotation.

[0044] The lock box 1 is fixedly installed at a preset position of an external device (such as a cabinet door) by bolts or snaps, and the locking member 2 is rotatably connected to the lock box 1 through a first rotating shaft, and its part exposed from the lock box 1 can contact and cooperate with an external structure (such as the edge of a cabinet); the limiting member 3 is rotatably connected to the lock box 1 through a second rotating shaft; the driving member 4 (electromagnetic driving member) is fixedly installed on one side of the lock box 1 close to the limiting member 3, and its output end corresponds to the force-bearing part of the limiting member 3. The counterweight component 5 of the limiting member 3 is fixed at the end thereof away from the second rotating shaft. The counterweight effect of the counterweight component 5 allows the position where the limiting member 3 cooperates with the locking member 2 to maintain a trend of moving toward the locking member 2.

[0045] When the locking mechanism is in the locked state, the limiting member 3 rotates around the second rotating axis under the action of the gravity of the counterweight component 5, abutting between the locking member 2 and the cabinet door, limiting the locking member 2 from rotating in the opposite direction around the first rotating axis. Even if it is vibrated or shaken, the gravity torque of the counterweight component 5 can resist the external force, preventing the limiting member 3 from disengaging from the locking member 2 and preventing mislocking. The stability is significantly better than the existing spring structure.

[0046] When unlocking is required, the driving member 4 (electromagnetic driving member) is briefly energized to generate an attractive force, which attracts the limiting member 3 to rotate around the second axis in the direction close to the driving member 4, and disengages the position between the locking member 2 and the cabinet door, thereby releasing the restriction; at this time, the locking member 2 can rotate around the first axis driven by the external structure to achieve unlocking. The driving member 4 can be powered off after the unlocking action is completed, and no continuous power supply is required, which is particularly suitable for battery-powered scenarios. When the locking member 2 cooperates with the cabinet door to lock, a gap can be formed between the locking member 2 and the cabinet door due to the rotation of the locking member 2. When the gap is large enough to allow the limiting member 3 to enter, the limiting member 3 rotates into the gap under the action of gravity, limiting the locking member 2 from rotating in the opposite direction, thereby achieving locking. At this time, the power consumption can be significantly reduced.

[0047] Preferably, the counterweight component 5 and the limiting member 3 are integrally formed. This integral forming can be achieved by stamping or casting, with no gap between the two. This reduces the number of assembly steps, minimizes production errors, and ensures consistent performance of each component during mass production.

[0048] Furthermore, the counterweight component 5 is formed by bending the restraining member 3. The restraining member 3 can be made of sheet metal, and there can be multiple counterweight components 5, all formed by this bending process. Compared to separately assembled counterweight components 5, the bent structure eliminates the need for additional connectors, reduces the risk of loosening, and maintains stable contact force even in long-term vibration environments. It also simplifies the production process and reduces manufacturing costs.

[0049] In an optional specific solution, a lock tongue 6 is provided on the locking member 2, and the part of the lock tongue 6 exposed from the lock box 1 is provided with a raised mating portion 7, which is used to abut against the edge of the external structure to drive the locking member 2 to rotate, so as to lock the external structure.

[0050] The lock tongue 6 and locking element 2 are secured together by welding or integral molding, ensuring synchronized rotation. When an external structure (such as a cabinet edge) moves relative to the lock tongue 6, its edge abuts the mating portion 7, driving the lock tongue 6 and locking element 2 to rotate about the first axis until the lock tongue 6 engages the edge of the external structure. Simultaneously, the limiting member 3 restricts the locking element 2 from rotating in the opposite direction, achieving locking. The mating portion 7 facilitates mating with the external structure to drive the rotation of the locking element 2, eliminating the need for additional power to control the locking.

[0051] Preferably, when the locking member 2 is unlocked, it rotates in contact with the external structure, and the mating portion 7 extends with the locking member 2, awaiting the next contact with the edge of the external structure. This structure allows the locking member 2 to rotate and lock without requiring additional operation, simplifying the operation process and improving ease of use. Furthermore, the extended state of the mating portion 7 is ensured by the rotation limit of the locking member 2, making the structure reliable and less susceptible to inadvertent movement by external forces.

[0052] As an optional further configuration, the mating portion 7 is hook-shaped and is used to abut against the edge of the mating structure. The hook-shaped structure can make the mating more stable and easier to form.

[0053] In a solution that can reduce the influence of the matching portion 7 on the locking process and the locking state, the lock box 1 is provided with a notch 8 at a position corresponding to the matching portion 7. When the locking member 2 is rotated to lock, the matching portion 7 is at least partially accommodated in the notch 8; when the locking member 2 is unlocked, the matching portion 7 extends from the notch 8.

[0054] During locking, the mating portion 7 rotates with the locking member 2 and gradually enters the notch 8. When fully locked, the outer surface of the mating portion 7 is flush with the outer surface of the lock box 1, preventing it from protruding outside the lock box 1 and interfering with external structures (such as the fit between the cabinet door and the cabinet body). When unlocking, the mating portion 7 rotates with the locking member 2 and extends out of the notch 8. This structure uses the notch 8 to guide the mating portion 7 in both its storage and extension, eliminating the structural interference caused by the protrusion of the lock tongue 6 and improving the overall compactness of the structure. Preferably, when the locking member 2 is locked, the mating portion 7 is completely contained in the notch 8.

[0055] The above mentioned is a locking mechanism. In specific applications, the following solutions can also be formed:

[0056] A storage cabinet comprises a cabinet body and a cabinet door rotatably mounted on the cabinet body, wherein the cabinet door is provided with a locking mechanism as described above; a locking member 2 is used to cooperate with the edge of the cabinet body corresponding to the cabinet door to lock or unlock.

[0057] The cabinet body is a metal or wooden box, and the cabinet door is rotatably connected to the cabinet body through hinges. The lock box 1 of the locking mechanism is fixed to the inner side of the cabinet door (corresponding to the position of the cabinet edge) by screws, and the part of the locking member 2 exposed from the lock box 1 faces the cabinet edge.

[0058] The driving member 4 can be combined with an electronic password module to realize driving control, or it can be driven and powered by a key or the like.

[0059] Among them, the locking member 2 is used to lock with the edge of the cabinet door corresponding to the cabinet body; the matching portion 7 is used to abut with the edge of the cabinet door corresponding to the cabinet body to drive the locking member 2 to rotate, so that the lock tongue 6 hooks the cabinet edge to lock the cabinet door; when the cabinet door is opened, the lock tongue 6 abuts the cabinet body and drives the locking member 2 to rotate, driving the matching portion 7 to extend. During the closing process of the cabinet door, the cabinet edge contacts the matching portion 7 of the lock tongue 6, driving the locking member 2 to rotate, and the lock tongue 6 hooks the inner side of the cabinet edge with the rotation to achieve locking. At this time, the matching portion 7 partially or completely enters the notch 8; when the cabinet door is unlocked and opened, the cabinet door rotates around the hinge, and the cabinet edge pushes the lock tongue 6 in the opposite direction, driving the locking member 2 to rotate, and the matching portion 7 extends with the lock tongue 6, waiting to contact the cabinet edge when closing next time. This process does not require manual operation of the locking mechanism, and realizes automatic locking and unlocking preparation.

[0060] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A locking mechanism, characterized in that: include: Lock box; A locking member rotatably connected to the lock box, wherein a portion of the locking member is exposed from the lock box to cooperate with an external structure to achieve locking; a limiting member, rotatably connected to the lock box; a driving member, configured to drive the restricting member to rotate so as to release the restriction on the locking member; The driving member is an electromagnetic driving member, and the electromagnetic driving member drives the limiting member to rotate by the attraction generated by power supply; In which, when the locking member is in a locked state, the limiting member abuts against the edge of the locking member under the action of gravity to limit its reverse rotation; when the locking member is unlocked, the driving member drives the limiting member to rotate to release the restriction on the locking member, and the driving member only generates driving force during the unlocking process; the limiting member is provided with a counterweight component, and the limiting member drives the limiting member to rotate and abut against the edge of the locking member through the gravity of the counterweight component to limit its reverse rotation.

2. The locking mechanism according to claim 1, wherein: The counterweight component and the limiting component are integrally formed.

3. The locking mechanism according to claim 1, wherein: The counterweight component is formed by bending the limiting component.

4. The locking mechanism according to claim 1, wherein: The locking member is provided with a lock tongue, and the portion of the lock tongue exposed from the lock box is provided with a raised matching portion, which is used to abut against the edge of the external structure to drive the locking member to rotate, so as to lock the external structure.

5. The locking mechanism according to claim 4, wherein: When the locking member is unlocked, the locking member contacts the external structure and rotates, and the matching portion extends along with the rotation of the locking member, waiting for the next contact with the edge of the external structure.

6. The locking mechanism according to claim 5, wherein: The matching portion is hook-shaped and is used to match and abut against the edge of the external structure.

7. The locking mechanism according to claim 4, 5 or 6, characterized in that: The lock box is provided with a notch at a position corresponding to the matching portion. When the locking member is rotated to lock, the matching portion is at least partially accommodated in the notch; when the locking member is unlocked, the matching portion extends from the notch.

8. The locking mechanism according to claim 7, wherein: When the locking piece is in a locked state, the matching portion is completely accommodated in the notch.

9. A locker, characterized in that: It comprises a cabinet body and a cabinet door rotatably mounted on the cabinet body, wherein the cabinet door is provided with a locking mechanism according to any one of claims 1 to 8; the locking member is used to cooperate with the edge of the cabinet body corresponding to the cabinet door to lock or unlock.

10. A locker, characterized in that: It comprises a cabinet body and a cabinet door rotatably mounted on the cabinet body, wherein the cabinet door is provided with a locking mechanism as described in any one of claims 4 to 7; the locking piece is used to cooperate with the edge of the cabinet door corresponding to the cabinet body for locking; the matching portion is used to cooperate with the edge of the cabinet door corresponding to the cabinet body to abut and drive the locking piece to rotate, so that the lock tongue hooks the edge of the cabinet body to lock the cabinet door; when the cabinet door is opened, the lock tongue abuts the cabinet body and drives the locking piece to rotate, driving the matching portion to extend.

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