A double-sided plug-in buckle

Abstract

This utility model relates to the field of mechanical connector technology, specifically a double-sided interlocking snap fastener. Existing double-sided snap fasteners often experience deflection, lifting, or misalignment during use due to uneven force on the jaws, leading to poor sliding, jamming, or even damage. To solve this problem, the core innovation of this utility model lies in: the first sliding plate of the first jaw is positioned below the first push block, and the second sliding plate of the second jaw is positioned above the second push block, allowing them to overlap and engage in a staggered manner in the vertical direction; the first sliding plate has an elongated first protrusion along the sliding direction, and the second sliding plate has a matching second protrusion. The first protrusion slides within the second protrusion to form a guide pair, forcibly constraining the two jaws to move linearly only in a preset direction, eliminating the risk of misalignment. This structure enhances rigidity and stability, ensures smooth opening and closing of the jaws, avoids disengagement and jamming, and significantly improves reliability and lifespan.

Description

Technical Field

[0001] This utility model relates to the field of mechanical connector technology, and more specifically, to a double-sided interlocking snap fastener. Background Technology

[0002] The double-sided interlocking latch is a common quick-locking and releasing device. It typically consists of a main body with a male latch and two opposing jaws. By pressing the push block of the jaws, the jaws are separated, thus releasing the male latch; after being released, the jaws automatically reset under the action of elastic elements, locking the male latch.

[0003] In existing technology, the two claws of this type of latch are usually arranged side by side in a slide rail inside the main body. However, this design has an inherent flaw: when the user presses the two push blocks, if the applied force is uneven, or under rapid operation or lateral force, the two claws can easily deflect or lift relative to each other, resulting in "misalignment". Once misalignment occurs, it can lead to poor sliding and a bad feel, or even one claw moving too far ahead of the other, causing the two claws to interfere with each other or disengage from their predetermined track, ultimately causing the entire mechanism to jam, unable to open or close properly, and possibly even causing permanent damage to the latch. This unstable structure greatly reduces the reliability and service life of the latch, especially in applications with high safety requirements.

[0004] Therefore, how to design a double-sided latch that can ensure that the two jaws can maintain precise alignment and smooth sliding under any operating conditions is a technical problem that urgently needs to be solved in this field. Utility Model Content

[0005] The purpose of this utility model is to overcome the above-mentioned defects of the prior art and provide a double-sided interlocking buckle, comprising:

[0006] The main body has a sliding area inside for the claws to slide.

[0007] The first and second claws are housed in the sliding area and can slide towards or away from each other. The first claw includes a first push block, a first slide plate, and a first claw end. The second claw includes a second push block, a second slide plate, and a second claw end.

[0008] In the initial position, the first and second claw ends hold the male buckle from both sides.

[0009] Its core technical solution lies in:

[0010] The first sliding plate is disposed on the lower side of the first push block, and the second sliding plate is disposed on the upper side of the second push block, so that the first sliding plate and the second sliding plate are staggered in the vertical direction and form a sliding engagement;

[0011] The first slide plate has a long strip-shaped first protrusion along its sliding direction, and the second slide plate has a second protrusion. The first protrusion and the second protrusion are staggered and close to each other.

[0012] The beneficial effects of this invention are as follows: By designing the first and second sliding plates into a staggered, stacked structure, and on this basis, incorporating a first-protrusion-second-protrusion guide mechanism that runs through the entire sliding stroke, the problems of deflection, lifting, and misalignment of the two claws during relative movement are fundamentally solved. The close fit between the first and second protrusions ensures that the first and second sliding plates mutually limit each other during relative movement, preventing the first sliding plate from shifting upwards and the second sliding plate downwards, thus forcing the two claws to maintain precise relative linear movement at all times. This structure greatly enhances the structural rigidity and movement stability of the latch, ensuring smooth and unobstructed opening and closing of the claws under any stress conditions, effectively preventing disengagement and jamming caused by misalignment, and significantly improving the reliability and service life of the product.

[0013] In a preferred embodiment, both the first and second claws are L-shaped structures. This design allows the push block and slide plate to be easily layered, resulting in a compact structure.

[0014] In a preferred embodiment, both the first and second sliding plates have slots, and the slots of the first and second sliding plates overlap in the initial position to form a through-hole receiving cavity. This design provides ingenious space for the installation of elastic elements.

[0015] In a preferred embodiment, an elastic element is disposed within the receiving cavity, with its two ends abutting against the inner walls of the slots of the first sliding plate and the second clamping plate, respectively. This elastic element (e.g., a compression spring) provides power for the automatic reset of the clamping claws.

[0016] In a preferred embodiment, the groove edge of the first sliding plate extends vertically upward to form a limiting plate, the height of which is flush with the groove of the second sliding plate in the vertical direction. This limiting plate effectively prevents the elastic element from bending or popping out under pressure, further enhancing the stability of the movement.

[0017] In a preferred embodiment, a limiting block extends from the top of the main body toward the sliding area, and both the first and second sliding plates have clearance slots for avoiding the limiting block. The length of the clearance slots is greater than the length of the limiting block along the sliding direction. This structure cleverly defines the maximum sliding stroke of the two claws, preventing the claws from being excessively pressed and dislodging from the main body.

[0018] In a preferred embodiment, both the first claw end and the second claw end are inclined toward the direction of the male buckle to guide the insertion of the male buckle, thereby achieving a "self-locking" function during unidirectional insertion and improving ease of use.

[0019] In a preferred embodiment, the second slide plate is provided with raised dots around its perimeter. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present invention.

[0021] Figure 2 yes Figure 1 The exploded view of the embodiment shown illustrates the disassembled structure of each component.

[0022] Figure 3 This is a schematic diagram of the engagement relationship between the first and second jaws, highlighting the misaligned distribution and the first-bump-second-bump structure.

[0023] Figure 4 It is along Figure 1 The cross-sectional view along line AA shows the engagement of the jaws, the main body, and the male buckle.

[0024] Figure 5 It is a magnified view showing the elastic element and the limiting plate structure.

[0025] Figure 6 It is a schematic diagram showing the relationship between the main limiting block and the sliding plate avoidance groove. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description of the double-sided interlocking buckle, in conjunction with the accompanying drawings and embodiments, is provided. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit its scope.

[0027] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "center," "longitudinal," "lateral," "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art will be able to understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] Please see Figures 1 to 4 This utility model provides a double-sided interlocking buckle. The buckle includes a main body 10, two sliding first claws 20 and second claws 30, and a detachable male buckle 40.

[0030] The main body 10 has a hollow sliding area 11 for accommodating and guiding the first claw 20 and the second claw 30.

[0031] The first claw 20 and the second claw 30 are preferably integral L-shaped structures to achieve structural misalignment. The first claw 20 consists of a first push block 21, a first sliding plate 22, and a first claw end 23. The first push block 21 is the part for which the user applies pressure, and it is exposed on the outside of the main body 10. The first sliding plate 22 extends horizontally from the underside of the first push block 21 and is the main functional part for sliding and guiding. The first claw end 23 is used to engage with the male buckle 40.

[0032] Similarly, the second claw 30 is composed of a second push block 31, a second slide plate 32, and a second claw end 33. The key difference from the first claw 20 is that the second slide plate 32 extends horizontally from the second push block 31 near the upper side.

[0033] This design allows the first and second claws 20 to naturally form a staggered, stacked arrangement when they are assembled together, with the first and second slide plates 22 positioned below the second slide plate 32 and the two fitting together closely.

[0034] For accurate guidance, please refer to the following: Figure 3 On the upper surface of the first sliding plate 22, an elongated first protrusion 221 is integrally formed along its length direction (i.e., the sliding direction). Correspondingly, a second protrusion 321 is formed on the lower surface of the second sliding plate 32. In the assembled state, the first protrusion 221 and the second protrusion 321 are staggered and can slide freely within them. This guide pair formed by the "first protrusion-second protrusion" firmly constrains the relative position of the first sliding plate 22 and the second sliding plate 32 throughout the entire sliding stroke, allowing them to move only in a preset straight line direction, thereby completely eliminating any relative rotation or tilting that could lead to misalignment.

[0035] At the initial locked position (e.g.) Figure 1 As shown, the first claw end 23 and the second claw end 33 together hold the groove or edge of the male buckle 40 from the left and right sides to achieve a firm lock.

[0036] Please see Figure 3 and Figure 5 To achieve automatic reset of the jaws, slots 70 are respectively formed on the first slide plate 22 and the second slide plate 32. In the initial position, the two slots are aligned and overlap, forming a receiving cavity. An elastic element 50, such as a compression spring, is placed inside this receiving cavity. The two ends of the elastic element 50 abut against the inner wall of the slot 70, continuously applying a force that brings the two jaws closer together. When the first push block 21 and the second push block 31 are pressed, the jaws separate, and the elastic element 50 is compressed; when the push blocks are released, the elastic element 50 extends, pushing the two jaws back to the locked position.

[0037] As a preferred option, such as Figure 5 As shown, a limiting plate 223 can extend vertically upward from the edge of the slot 222 of the first slide plate 22. The height of the limiting plate 223 is designed to be exactly flush with the lower surface of the second slide plate 32 (i.e., at the same height as the slot 322). It surrounds the elastic element 50 and can effectively prevent the elastic element 50 from shifting or bending when subjected to force, thus further ensuring the smooth operation of the mechanism.

[0038] Please see Figure 6To precisely control the movement range of the gripper, one or more limiting blocks 12 can extend downward from the top inner wall of the main body 10. Correspondingly, clearance slots 60 are formed on both the first sliding plate 22 and the second sliding plate 32. The limiting blocks 12 are located within these two clearance slots. The length L1 of the clearance slot 60 along the sliding direction is greater than the length L2 of the limiting block 12 along the same direction. When the gripper slides, the limiting block 12 moves within the clearance slot. When the limiting block 12 touches either end of the clearance slot, the continued movement of the gripper is restricted, thereby precisely defining the maximum opening and closing positions of the gripper.

[0039] Please see Figure 1 as well as Figure 2 The second slide plate 32 has four protrusions 34 around its perimeter. When the belt enters through the buckle 40, it will pass through the second slide plate 32. The four protrusions 34 will rub against the belt instead of the entire second slide plate 32, thus reducing frictional resistance and preventing jamming.

[0040] Finally, for ease of use, the sides of the first claw end 23 and the second claw end 33 facing the insertion of the male buckle can be designed as inclined guide surfaces. When the male buckle 40 is inserted into the main body 10, the front end of the male buckle will automatically push the two claws apart along these two guide surfaces until it passes the claw ends. Then, the claws will spring back under the action of the elastic element 50 and engage in the groove of the male buckle, realizing the convenient operation of "one-click engagement".

[0041] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A double-sided interlocking buckle, characterized in that, include: The main body has a sliding area inside for the claws to slide. The first and second claws are housed in the sliding area and can slide towards or away from each other. The first claw includes a first push block, a first slide plate, and a first claw end. The second claw includes a second push block, a second slide plate, and a second claw end. In the initial position, the first and second claw ends hold the male buckle from both sides. The first sliding plate is disposed on the lower side of the first push block, and the second sliding plate is disposed on the upper side of the second push block, such that the first sliding plate and the second sliding plate are staggered in the vertical direction and form a sliding engagement; The first slide plate has a long strip-shaped first protrusion along its sliding direction, and the second slide plate has a second protrusion. The first protrusion and the second protrusion are staggered and close to each other.

2. The double-sided interlocking buckle according to claim 1, characterized in that, Both the first and second jaws have an L-shaped structure.

3. The double-sided interlocking buckle according to claim 1, characterized in that, Both the first and second slide plates have slots. The slots of the first and second slide plates overlap each other in the initial position to form a through cavity.

4. The double-sided interlocking buckle according to claim 3, characterized in that, An elastic element is provided inside the receiving cavity, and the two ends of the elastic element abut against the inner wall of the groove of the first sliding plate and the inner wall of the groove of the second sliding plate, respectively.

5. The double-sided interlocking buckle according to claim 3 or 4, characterized in that, The groove edge of the first slide plate extends vertically upward to form a limiting plate, and the height of the limiting plate is flush with the groove of the second slide plate in the vertical direction.

6. The double-sided interlocking buckle according to claim 1, characterized in that, The top of the main body extends toward the sliding area and is provided with a limiting block. Both the first and second sliding plates are provided with a clearance slot for avoiding the limiting block. The length of the clearance slot is greater than the length of the limiting block along the sliding direction.

7. The double-sided interlocking buckle according to claim 1, characterized in that, Both the first and second claw ends are inclined toward the direction of the male buckle to guide the insertion of the male buckle.

8. The double-sided interlocking buckle according to claim 1, characterized in that, The second skateboard has raised dots around its perimeter.

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