A thin buckle lock with one-side unlocking

Abstract

The present invention relates to the technical field of locks, and specifically to a thin buckle lock capable of being unlocked from one side, comprising a bracket, a lock body, and a lock seat. The bracket and the lock seat are respectively fixed to the two opening and closing sides of a bag. The bracket is provided with a lock hook, the lock body is provided with a lock buckle capable of locking the lock hook, and the lock body is hinged to the lock seat. The lock body is also provided with a push-twist, a limit block, a locking reset spring, a password assembly, and a lock core assembly. The push-twist is slidably mounted on the lock body and partially extends out of one side of the lock body for operation. The movement of the push-twist can drive the lock buckle to release the locked lock hook. The limit block is maintained in a locked state that restricts the movement of the push-twist via the locking reset spring. When the password of the password assembly is correct or the lock core assembly is inserted with the correct key and turned, the force of the locking reset spring can be overcome to drive the limit block to rotate and release the restriction on the push-twist. The rotatable limit block of the present application occupies little space, and the lock body is smaller, thinner, and more delicate. It can also ensure the accuracy and safety of unlocking and locking.

Description

Technical Field

[0001] The present invention relates to the technical field of locks, and in particular to a thin buckle lock capable of being unlocked from one side. Background Art

[0002] The buckle is an evolution of the buckle. A buckle is a type of buckle with a lock body added to it. This allows the buckle to not only fasten the buckle, but also provide the locking and anti-theft functions of the lock body. Buckles are generally small and easy to operate, making them widely used on luggage.

[0003] Existing buckle locks typically feature both key and password unlocking. These locks have complex internal transmission mechanisms, such as a linkage lever and a push-twist mechanism for unlocking. The linkage lever aligns with the push-twist mechanism to lock, but deflects to unlock. Key unlocking requires the linkage lever to move left, while password unlocking requires the linkage lever to move right. This creates a larger space for the linkage lever to move, making the buckle lock larger overall. Reducing the size of the buckle lock would compress the travel of the push-twist mechanism and the linkage lever, reducing safety. Summary of the Invention

[0004] In view of the above technical problems in the prior art, the present invention provides a thin buckle lock that can be unlocked from one side.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A thin buckle lock with single-side unlocking is provided, comprising a bracket, a lock body and a lock seat, the bracket and the lock seat are respectively fixed to the two opening and closing sides of the luggage, the bracket is provided with a lock hook, the lock body is provided with a lock buckle capable of locking the lock hook, and the lock body is hinged to the lock seat; the lock body is also provided with a push-twist, a limit block, a locking reset spring, a password component and a lock core component, which is characterized in that: the push-twist can be slidably installed on the lock body and partially extend out of one side of the lock body for operation, the movement of the push-twist can drive the lock buckle to release the locking hook, and the limit block is maintained in a locked state that limits the movement of the push-twist via the locking reset spring; after the password of the password component is correct or the lock core component is inserted with the correct key and rotated, the force of the locking reset spring can be overcome to drive the limit block to rotate to release the restriction on the push-twist.

[0007] Specifically, the limit block is rotatably mounted on the bottom of the lock core assembly, and a limit protrusion is provided on the circumference of the limit block. In the locked state, the limit protrusion abuts the end of the push knob; in the unlocked state, the limit protrusion and the push knob are staggered with each other.

[0008] Specifically, the password assembly includes a password wheel module and a linkage plate. The linkage plate is connected to an unlocking spring. After the correct password is entered, the unlocking spring can drive the linkage plate to move horizontally to overcome the force of the locking reset spring and drive the limit block to rotate and unlock.

[0009] Specifically, a locking protrusion is provided on the peripheral side of the limit block, and a hook portion is provided on the linkage plate to abut against the locking protrusion.

[0010] Specifically, a pop-up return spring is provided in the lock body to apply force to the push knob, so that the push knob remains partially protruding outward when the external force operation is removed.

[0011] Specifically, the lock includes a hinge shaft, a buckling part, an unlocking drive part and a retaining spring. The hinge shaft is rotatably mounted on the lock body. The buckling part is fixed to the hinge shaft and has a buckling groove that matches the lock hook; the retaining spring applies force to the buckling part to keep the buckling groove in a buckled state; the unlocking drive part is fixed to the end of the hinge shaft. In the unlocked state, pushing and twisting can push the unlocking drive part to drive the hinge shaft to rotate, thereby disengaging the buckling groove from the lock hook.

[0012] Specifically, an inclined guide surface is provided at the bottom of the buckle part. When the lock hook is inserted into the lock body, the lock hook presses against the inclined guide surface to make the buckle part overcome the force of the retaining spring and rotate, thereby making the lock hook automatically embed into the buckle groove of the buckle part.

[0013] Specifically, the lock hook includes a first hook body and a second hook body, and the lock buckle includes a corresponding first buckle body and a second buckle body. The first buckle body and the second buckle body are hinged to the lock body in parallel, and the push-twist section located inside the lock body is provided with a first push part and a second push part. When the push-twist moves, the first push part and the second push part respectively drive the first buckle body and the second buckle body to rotate to disengage from the first hook body and the second hook body.

[0014] Specifically, the first pushing portion is a slope provided on the push button, and the slope cooperates with the unlocking driving portion of the first buckle body.

[0015] Specifically, the end of the push knob located in the lock body is L-shaped, and the lengths of the two sides of the end are different, wherein the shorter side serves as the second push portion, and the longer side extends to the matching limit block.

[0016] Beneficial effects of the present invention:

[0017] Compared with the prior art, the thin buckle lock with one-side unlocking of the present invention has a push-twist lock whose displacement is limited by a limit block. Password unlocking or key unlocking is both achieved by driving the limit block to rotate. The rotatable limit block occupies a small space, so the lock body can be made smaller, thinner and more delicate; and the rotation method allows the limit block to have a sufficiently large unlocking and locking stroke, ensuring the accuracy and safety of unlocking and locking. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Schematic diagram of the structure of a thin buckle lock with one-side unlocking in an embodiment.

[0019] Figure 2 This is an exploded view of the thin buckle lock with one-side unlocking in the embodiment.

[0020] Figure 3 This is a schematic diagram of the structure of the thin buckle lock with one-side unlocking in the embodiment after part of the outer shell of the lock body is hidden.

[0021] Figure 4 This is a structural diagram of the lock body in the embodiment with a partial outer shell hidden.

[0022] Figure 5 Schematic diagram of the structure of a single lock in the embodiment.

[0023] Figure 6 Schematic diagram of the structure of the push button in the embodiment.

[0024] Reference numerals:

[0025] Bracket 1, lock hook 11; lock base 2, lock body 3;

[0026] Lock buckle 4, hinge shaft 41, buckling portion 42, buckle slot 421, second positioning column 422, inclined guide surface 423, unlocking drive unit 43;

[0027] Push knob 5, first push portion 51, second push portion 52;

[0028] Limit block 6, third positioning column 61, limiting protrusion 62, locking protrusion 63;

[0029] Password assembly 7, password wheel module 71, linkage plate 72, first positioning column 721, hook 722; lock core assembly 8. DETAILED DESCRIPTION

[0030] The present invention is described in detail below with reference to specific embodiments and accompanying drawings.

[0031] The thin buckle lock of the embodiment of the single-side unlocking, such as Figures 1 to 6 As shown, the case comprises a bracket 1, a lock base 2, and a lock body 3. The bracket 1 and the lock base 2 are respectively fixed to the two opening and closing sides of the bag. The bracket 1 is provided with a lock hook 11, and the lock body 3 is provided with a lock buckle 4. The lock body 3 is hinged to the lock base 2. In practice, a spring can be provided between the lock base 2 and the lock body 3 to keep the lock body 3 away from the bracket 1. When the lock body 3 is pressed down by an external force, the lock hook 11 can be inserted into the lock buckle 4 of the lock body 3 to lock the bag.

[0032] The lock body 3 is further provided with a push knob 5, a limit block 6, a locking return spring, a password assembly 7, and a lock core assembly 8. The push knob 5 is slidably mounted on the lock body 3 and partially extends out of one side of the lock body 3 to allow for external pressure. The limit block 6 is maintained in a locked state, restricting the movement of the push knob 5, by the locking return spring. One end of the locking return spring abuts against the interior of the lock body 3, while the other end is sheathed on the third positioning post 61 of the limit block 6, exerting a thrust on the limit block 6. When the password assembly 7 is correct or the lock core assembly 8 is inserted and rotated with the correct key, the force of the locking return spring can be overcome to drive the limit block 6 to rotate and release the restriction on the push knob 5. External force pressing the push knob 5 causes the push knob 5 to move, driving the lock catch 4 to release the locked lock hook 11, thereby unlocking the lock.

[0033] In this embodiment, the limit block 6 is annular and can be rotatably mounted on the bottom of the lock core assembly 8. A limit protrusion 62 is provided on the circumferential side of the limit block 6. In the locked state, the limit protrusion 62 is aligned with the end of the push knob 5; in the unlocked state, the limit protrusion 62 and the push knob 5 are staggered with each other.

[0034] Specifically, the password assembly 7 includes a password wheel module 71 and a linkage plate 72. The linkage plate 72 is connected to an unlocking spring. One end of the unlocking spring abuts against the interior of the lock body 3, while the other end encloses a first positioning post 721 of the linkage plate 72. Upon entering the correct password, the unlocking spring drives the linkage plate 72 to move laterally, overcoming the force of the lock return spring and driving the limit block 6 to rotate and unlock. The ability of the linkage plate 72 to move laterally after the correct password is entered into the password wheel module 71 is conventional technology and will not be further described here. The limit block 6 is provided with a latching protrusion 63 on its circumference, and the linkage plate 72 is provided with a hook portion 722 that abuts against the latching protrusion 63. The latching protrusion 63 is arranged on the outside of the limit block 6 at a certain angle to the limit protrusion 62. The key assembly engages the inner circumference of the limit block 6. Upon insertion of the correct key, the lock cylinder rotates, driving the limit block 6 to rotate.

[0035] In practice, a pop-up return spring is provided in the lock body 3 to apply force to the push knob 5, so that the push knob 5 remains partially protruding outward when the external force is removed, leaving space for the limiting protrusion 62 to reset and lock.

[0036] In this embodiment, a single lock catch 4 comprises a hinge shaft 41, a locking portion 42, an unlocking actuator 43, and a retaining spring. The hinge shaft 41 is rotatably mounted on the lock body 3. The locking portion 42 is fixed to the hinge shaft 41 and defines a locking groove 421 that engages with the lock hook 11. One end of the retaining spring abuts against the interior of the lock body 3, while the other end encloses the second positioning post 422 of the locking portion 42, exerting a thrust on the locking portion 42, thereby maintaining the locking portion 42 along the thickness of the lock body 3 and the locking groove 421 in the locked state. The unlocking actuator 43 is fixed to the end of the hinge shaft 41. In the unlocked state, the push button 5 can push the unlocking actuator 43, causing the hinge shaft 41 to rotate, thereby disengaging the locking groove 421 from the lock hook 11.

[0037] Specifically, the bottom of the locking portion 42 is provided with an inclined guide surface 423. When the lock hook 11 is inserted into the lock body 3, the lock hook 11 abuts against the inclined guide surface 423, causing the locking portion 42 to overcome the force of the retaining spring and rotate, thereby automatically causing the lock hook 11 to fit into the locking groove 421 of the locking portion 42. The bottom shell of the lock body 3 is also provided with a guide piece to guide the lock hook 11.

[0038] In this embodiment, the lock hook 11 has two parts: a first hook body and a second hook body; the lock buckle 4 also has two parts: a first buckle body and a second buckle body, which are hinged to the lock body 3 in parallel, and the section of the push knob 5 located inside the lock body 3 is provided with a first push portion 51 and a second push portion 52. The first push portion 51 is a slope provided on the push knob 5, and the slope cooperates with the unlocking drive portion 43 of the first buckle body. The end of the push knob 5 located inside the lock body 3 is L-shaped, and the lengths of the two sides of the end are different, wherein the shorter side serves as the second push portion 52, and the longer side extends to the limiting protrusion 62 of the matching limiting block 6. When the push knob 5 moves, the first push portion 51 and the second push portion 52 respectively drive the first buckle body and the second buckle body to rotate to disengage from the first hook body and the second hook body. As Figure 3 As shown in FIG4 , the unlocking driving portion 43 and the locking portion 42 of the first buckle body extend from different directions of the hinge shaft 41 , while the unlocking driving portion 43 and the locking portion 42 of the second buckle body extend from the same direction of the hinge shaft 41 .

[0039] In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0040] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.

[0041] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A thin buckle lock with one-side unlocking, comprising a bracket, a lock body, and a lock base. The bracket and the lock base are respectively fixed to the two opening and closing sides of the bag. The bracket is provided with a lock hook, and the lock body is provided with a lock buckle capable of locking the lock hook. The lock body is hinged to the lock base. The lock body is also provided with a push-twist, a limit block, a locking return spring, a password assembly, and a lock core assembly. The characteristics are: The push-twist is slidably mounted on the lock body and partially extends out of one side of the lock body for operation. The movement of the push-twist can drive the lock catch to release the locked lock hook, and the limit block is kept in a locked state by the locking return spring to limit the movement of the push-twist. When the password of the password component is correct or the lock core component is inserted with the correct key and turned, the force of the locking return spring can be overcome to drive the limit block to rotate and release the restriction on the push-twist. The limit block is rotatably mounted on the bottom of the lock core assembly. A limit protrusion is provided on the periphery of the limit block. In the locked state, the limit protrusion abuts against the end of the push knob. In the unlocked state, the limit protrusion and the push knob are staggered. The lock buckle includes a hinge shaft, a buckling part, an unlocking drive part and a holding spring. The hinge shaft is rotatably mounted on the lock body. The buckling part is fixed to the hinge shaft and has a buckling groove that matches the lock hook. The holding spring applies force to the buckling part to keep the buckling groove in a buckled state. The unlocking drive part is fixed to the end of the hinge shaft. In the unlocked state, pushing and twisting can push the unlocking drive part to drive the hinge shaft to rotate, thereby disengaging the buckling groove from the lock hook. The lock hook includes a first hook body and a second hook body, and the lock buckle includes a corresponding first buckle body and a second buckle body. The first buckle body and the second buckle body are hinged to the lock body in parallel, and the push-twist section located inside the lock body is provided with a first push portion and a second push portion. When the push-twist moves, the first push portion and the second push portion respectively drive the first buckle body and the second buckle body to rotate to disengage from the first hook body and the second hook body.

2. The thin buckle lock with one-side unlocking according to claim 1, characterized in that: The password assembly includes a password wheel module and a linkage plate. The linkage plate is connected to an unlocking spring. After the correct password is entered, the unlocking spring can drive the linkage plate to move horizontally to overcome the force of the locking reset spring and drive the limit block to rotate and unlock.

3. The thin buckle lock with one-side unlocking according to claim 2, characterized in that: A clamping protrusion is provided on the peripheral side of the limiting block, and a hook portion is provided on the linkage plate to abut against the clamping protrusion.

4. The thin buckle lock with one-side unlocking according to claim 1, characterized in that: A pop-up return spring is provided in the lock body to apply force to the push knob, so that the push knob remains partially protruding outward when the external force is removed.

5. The thin buckle lock with one-side unlocking according to claim 1, characterized in that: An inclined guide surface is provided at the bottom of the buckle part. When the lock hook is inserted into the lock body, the lock hook presses against the inclined guide surface to make the buckle part overcome the force of the retaining spring and rotate, thereby making the lock hook automatically embed into the buckle groove of the buckle part.

6. The thin buckle lock with one-side unlocking according to claim 1, characterized in that: The first pushing portion is a slope provided on the push button, and the slope cooperates with the unlocking driving portion of the first buckle body.

7. A thin buckle lock with one-side unlocking according to claim 1 or 6, characterized in that: The end of the push knob located in the lock body is L-shaped, and the lengths of the two sides of the end are different, wherein the shorter side serves as the second push portion, and the longer side extends to the matching limit block.

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