Quick-release type double-locking buckle
By designing a quick-release double-locking buckle, utilizing the double locking structure of the insert plate and the buckle plate, as well as magnetic sensor monitoring, the problem of easy mis-locking of existing buckles is solved, achieving higher security and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-16
- Publication Date
- 2026-03-31
AI Technical Summary
Existing buckles generally only have one locking structure, which can be easily unlocked by body movement, collision or accidental contact, leading to equipment falling or safety hazards.
A quick-release double-locking buckle was designed, which forms a double lock through side hooks, flat hooks, valve plates and other structures on the insert plate and buckle plate. Combined with a magnetic sensor to monitor the insertion status of the insert plate and buckle plate, the buckle is only allowed to disengage when both locking structures are opened at the same time.
It improves the security and connection stability of the buckle, prevents accidental locking, and ensures that the equipment is securely fixed.
Smart Images
Figure CN224064651U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to buckles, and more particularly to quick-release double-locking buckles. Background Technology
[0002] As a mechanical connecting device, snap fasteners are widely used in various fields due to their advantages such as quick assembly and disassembly, compact structure, and low cost. However, most mainstream snap fasteners on the market currently only have a single locking structure, which makes them prone to disengagement during use. In the military field, buckles are used to secure individual soldier equipment such as helmets, bulletproof vests, and tactical vests. If there is only one locking structure, the soldier's limb movements or collisions with the equipment can easily trigger the buckle to unlock, affecting the soldier's normal training. In the livestock field, positioning devices need to be fixed to straps and then attached to livestock via buckles. If there is only one locking structure, the animal's biting or collisions with other objects may also accidentally unlock the buckle, making it easy for the positioning device to fall off and the animal to be lost. In everyday life, buckles are used in products such as backpacks, baby chairs, and strollers. If there is only one locking structure, when carrying a backpack, the buckle can easily be triggered by limb movements, causing the backpack to fall off. When used on infant products such as baby chairs and strollers, infants and toddlers can easily touch the buckle, causing it to unlock. Once the buckle is unlocked, the infant and toddler cannot be secured, and the infant and toddler are likely to fall off. Utility Model Content
[0003] The purpose of this invention is to provide a quick-release double locking buckle with a high safety factor that can prevent misunderstandings.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is: a quick-release double-locking buckle, comprising: an insert plate and a buckle plate, both the insert plate and the buckle plate having connecting holes; side hooks being provided on the left and right side walls of the insert plate; locking grooves being provided on the outer side walls of the side hooks; a connecting groove with an open upper end being provided in the insert plate; a hook hole being provided at one end of the bottom wall of the connecting groove; a flat hook being rotatably provided in the connecting groove; the hook portion at one end of the flat hook being located in the hook hole; a first spring being vertically provided between the other end of the flat hook and the connecting groove; the two ends of the first spring respectively abutting against the flat hook and the connecting groove; and a valve plate being slidably engaged on the side of the flat hook connected to the first spring. Two arc-shaped grooves are spaced apart on the bottom wall of the valve plate. A second spring is vertically installed in the flat hook, and a valve ball is installed on the second spring. The valve ball abuts against the arc-shaped groove. A slot with an open top and end is provided on the buckle plate. A locking plate protrudes from the bottom wall of the slot. Side pressure blocks are rotatably installed on the left and right sides of the slot. One end of the side pressure plate extends out of the buckle plate. A third spring is provided between the side pressure block and the side wall of the slot. The insert plate is inserted into the slot of the buckle plate. Under the elastic force of the third spring, the side pressure block abuts against the locking groove of the side hook on the same side. The flat hook is locked on the locking plate by the hook part under the elastic force of the first spring. The valve plate slides to abut against the insert plate.
[0005] Furthermore, in the aforementioned quick-release double locking buckle, mounting grooves are provided on the bottom walls of both the insert plate and the buckle plate. The signal transmitting end and signal receiving end of the non-contact sensor are respectively provided in the two mounting grooves, and a cover plate is provided on the mounting groove.
[0006] Furthermore, in the aforementioned quick-release double locking buckle, a limiting groove is provided on the other end of the bottom wall of the connecting groove, the lower end of the first spring is installed in the limiting groove, and a spring post extends downward on the other end of the flat hook, with the first spring fitted onto the spring post.
[0007] Furthermore, in the aforementioned quick-release double locking buckle, a T-shaped spring hole is provided on the flat hook to pass through the spring post, the second spring is located in the T-shaped spring hole and abuts against the small diameter end of the T-shaped spring hole, and the diameter of the valve ball is smaller than the diameter of the large diameter end of the T-shaped spring hole.
[0008] Furthermore, in the aforementioned quick-release double locking buckle, there is a gap between the left and right side walls of the flat hook and the left and right side walls of the connecting groove. An L-shaped groove is provided on the left and right side walls of the side where the flat hook is connected to the first spring, and an L-shaped locking plate is provided on the left and right side walls of the valve plate. The L-shaped locking plate of the valve plate slides and engages with the L-shaped groove on the same side.
[0009] Furthermore, in the aforementioned quick-release double locking buckle, the top wall of the valve plate is a protruding arched wall, and anti-slip texture is provided on the top wall of the valve plate. Locking and unlocking marks are respectively provided on the left and right sides of the anti-slip texture.
[0010] Furthermore, in the aforementioned quick-release double locking buckle, the side wall of the locking plate facing the end of the slot is a wedge-shaped wall, the side wall of the hook facing the hook hole is a protruding arc-shaped wall, and an avoidance hole is provided on the bottom wall of the slot, with the hole wall of the avoidance hole aligned vertically with the other side wall of the locking plate.
[0011] Furthermore, in the aforementioned quick-release double locking buckle, a limiting block is respectively provided on the left and right inner side walls of the hook hole.
[0012] The advantages of this utility model are as follows: When the insert plate and the buckle plate are connected, the side pressure plate on the buckle plate abuts against the locking groove of the side hook of the insert plate, forming a first locking structure. The hook on the flat hook on the insert plate abuts against and hooks against the locking plate of the buckle plate, forming a second locking structure. Then, the valve plate slides towards the locking mark until it abuts against the insert plate, which prevents the flat hook from rotating and disengaging when pressed. The flat hook and the side hook provide a double locking effect for the buckle plate. Only when both locking structures are opened at the same time can the insert plate and the buckle plate disengage, which improves safety and connection stability. Magnetic sensors and magnetic conductive units are respectively provided in the insert plate and the buckle plate, which can monitor the insertion status between the insert plate and the buckle plate in real time. Attached Figure Description
[0013] Figure 1 This is a structural diagram of the quick-release double-locking buckle in the locked state as described in this utility model.
[0014] Figure 2 yes Figure 1 A schematic diagram of the cross-sectional structure.
[0015] Figure 3 yes Figure 2 A schematic diagram of the cross-sectional structure along the AA direction.
[0016] Figure 4 yes Figure 3 A schematic diagram of the structure when the middle valve plate abuts against the insert plate.
[0017] Figure 5 yes Figure 2 Schematic diagram of the cross-sectional structure in the middle BB direction.
[0018] Figure 6 yes Figure 1 Exploded view of the middle insert plate.
[0019] Figure 7 yes Figure 1Exploded view of the structure of the middle panel. Detailed Implementation
[0020] The technical solution of this utility model will be further described below with reference to the accompanying drawings and preferred embodiments.
[0021] like Figures 1 to 7 As shown, the quick-release double-locking buckle of this utility model includes: an insert plate 1 and a buckle plate 2. Both the insert plate 1 and the buckle plate 2 are provided with connecting holes 3, which allow the insert plate 1 and the buckle plate 2 to be fixed to a rope or other flexible connector. Side hooks 11 are provided on both the left and right side walls of the insert plate 1, and locking grooves are provided on the outer side walls of the side hooks 11. A connecting groove 12 with an open upper end is provided in the insert plate 1. A hook hole 121 is provided at one end of the bottom wall of the connecting groove 12, and a limiting groove is provided at the other end of the bottom wall of the connecting groove 12. A first spring 122 is vertically arranged in the limiting groove and is engaged in the limiting groove. A flat hook 4 is rotatably arranged in the connecting groove 12 via a rotating shaft. The hook at one end of the flat hook 4... Part 41 is located in hook hole 121. The side wall of hook part 41 facing hook hole 121 is a protruding arc wall. A spring post 42 extends downward from the other end of the flat hook 4. The first spring 122 is fitted on the spring post 42 and abuts against the flat hook 4. A limiting block 123 is provided on the left and right inner side walls of hook hole 121 respectively. Under the elastic force of the first spring 122, the hook part 41 on the flat hook 4 rotates downward. After the hook part 41 abuts against the two limiting blocks 123, it stops rotating downward. At this time, the flat hook 4 is flush with the top wall of the insert plate 1. Pressing the side of the flat hook 4 connected to the first spring 122 can make the flat hook 4 overcome the elastic force of the first spring 122 and make the hook part 41 on the flat hook 4 rotate upward.
[0022] A valve plate 5 is slidably mounted on the side of the flat hook 4 connected to the first spring 122. Gaps are left between the left and right side walls of the flat hook 4 and the left and right side walls of the connecting groove 12. L-shaped grooves 43 are provided on the left and right side walls of the side of the flat hook 4 connected to the first spring 122. L-shaped retaining plates 51 are provided on the left and right side walls of the valve plate 5. The L-shaped retaining plates 51 of the valve plate 5 are slidably engaged with the L-shaped grooves 43 on the same side. Two arc-shaped grooves 52 are spaced apart on the bottom wall of the valve plate 5. A T-shaped spring hole 42 penetrating the spring post 42 is provided on the flat hook 4. 1. A second spring 44 is vertically installed in the T-shaped spring hole 421. The second spring 44 abuts against the small diameter end of the T-shaped spring hole 421. A valve ball 53 is installed on the second spring 44. The diameter of the valve ball 53 is smaller than the diameter of the large diameter end of the T-shaped spring hole 421. Under the elastic force of the second spring 44, the valve ball 53 abuts against the arc-shaped groove 52 of the valve plate 5. The top wall of the valve plate 5 is a protruding arched wall. Anti-slip texture 54 is provided on the top wall of the valve plate 5. Locking mark 55 and unlocking mark 56 are respectively provided on the left and right sides of the anti-slip texture 54. When the valve plate 5 is slid towards the locking mark 55, the valve plate 5 will pass over the flat hook 4 and abut against the top wall of the insert plate 1, locking the flat hook 4 so that the flat hook 4 cannot move. When the valve plate 5 is slid towards the unlocking mark 56, the valve plate 5 will disengage from the insert plate 1. Pressing the side of the flat hook 4 connected to the first spring 122 will cause the flat hook 4 to overcome the elastic force of the first spring 122 and rotate the hook part 41 on the flat hook 4 upward. When the valve plate 5 is slid, the valve ball 53 will respectively engage with the two arc-shaped grooves 52 on the valve plate 5, thereby locking the valve plate 5. The top wall of the valve plate 5 is set as an arched wall and anti-slip texture 54 is provided on the top wall to facilitate the fingertip to push the valve plate 5 and reduce the difficulty of operation.
[0023] A slot 21 with an open top and end is provided on the buckle plate 2. A locking plate 22 is provided protruding on the bottom wall of the slot 21. The side wall of the locking plate 22 facing the open end of the slot 21 is a wedge-shaped wall. An avoidance hole 23 is provided on the bottom wall of the slot 21. The hole wall of the avoidance hole 23 is vertically aligned with the other side wall of the locking plate 22. Side pressure blocks 6 are rotatably provided on the left and right sides of the slot 21. One end of the side pressure plate 6 extends out of the buckle plate 2. A third spring 61 is provided between the side pressure block 6 and the side wall of the slot 21. When the insert plate 1 is inserted into the slot 21 of the buckle plate 2, the two side hooks 11 on the insert plate 1 abut against the side pressure block 6 on the same side, pushing the side pressure block 6 open. At the same time, the hook part 41 on the flat hook 4 abuts against the wedge-shaped wall of the locking plate 22. Under the guidance of the wedge-shaped wall of the locking plate 22, the hook part 41 on the flat hook 4 rotates upward. When the insert plate 1 is inserted into the locking groove of the side hook 11 on the same side, it abuts against the side hook 11 to form the first locking structure, while the hook part 41 on the flat hook 4 passes over the lock. The stop plate 22 abuts against and hooks onto the locking plate 22 to form a second locking structure. The hook part 41 is located in the clearance hole 23 to prevent the slot 21 from interfering with the hook part 41. At this time, the hook part 41 also abuts against the two limit blocks 123. The flat hook 4 is flush with the top wall of the insert plate 1. Then the valve plate 5 is slid towards the locking mark 55 until the valve plate 5 abuts against the insert plate 1. This can prevent the flat hook 4 from rotating when subjected to external force and causing it to disengage. The flat hook 4 and the side hook 11 play a double locking role for the buckle plate 2. When unlocking, slide the valve plate 5 away from the insert plate 1 towards the unlock mark 56, then press the valve plate 5 down to make the hook part 41 on the flat hook 4 rotate upward and disengage from the locking plate 22, thus releasing the first locking structure. At the same time, press the side pressure blocks 6 on both sides so that the side pressure blocks 6 on both sides overcome the elastic force of the third spring 61 and disengage from the locking groove of the side hook 11 on the same side, thus releasing the second locking structure. When the two locking structures are released at the same time, the insert plate 1 can be taken out from the slot 21 of the buckle plate 2. If either locking structure is not released, the insert plate 1 cannot be disengaged from the buckle plate 2.
[0024] In this embodiment, mounting grooves 7 are provided on the bottom walls of both the insert plate 1 and the buckle plate 2. A magnetic sensor 71 and a magnetic guiding unit 72 are respectively installed in the two mounting grooves 7, and a cover plate 73 is provided on the mounting grooves 7. When the insert plate 1 and the buckle plate 2 are inserted and locked, the magnetic field emitted by the magnetic guiding unit 72 is captured by the magnetic sensor 71, triggering a locking signal. The backend can then know that the insert plate 1 and the buckle plate 2 are in a locked state. When the insert plate 1 and the buckle plate 2 are disengaged, the magnetic sensor 71 cannot capture the magnetic field emitted by the magnetic guiding unit 72, or the magnetic field captured by the magnetic sensor 71 is too weak, so the locking signal will not be triggered, and the backend can then know that the insert plate 1 and the buckle plate 2 are in a disengaged state.
[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of this utility model. Any modifications or equivalent substitutions that do not depart from the spirit and scope of this utility model should be covered within the protection scope of the claims of this utility model.
Claims
1. A quick release double locking buckle, characterized in that: The utility model relates to a plug-in plate and buckle plate, the plug-in plate and the buckle plate are provided with connecting holes, the plug-in plate is provided with side hooks on the left and right side walls, the side hooks are provided with locking grooves on the outer side walls, the plug-in plate is provided with a connecting groove with an open upper end, the connecting groove is provided with a hook hole on one end of the bottom wall, a flat hook is rotatably arranged in the connecting groove, the hook of one end of the flat hook is arranged in the hook hole, a first spring is vertically arranged between the other end of the flat hook and the connecting groove, the two ends of the first spring are in contact with the flat hook and the connecting groove respectively, a valve plate is slidably arranged on the side of the flat hook connected with the first spring, two arc grooves are spaced apart and arranged on the bottom wall of the valve plate, a second spring is vertically arranged in the flat hook, a valve ball is arranged on the second spring and abuts against the arc grooves, the buckle plate is provided with a clamping groove with an open top and end, a locking plate is protrusively arranged on the bottom wall of the clamping groove, side pressure blocks are rotatably arranged on the left and right sides of the clamping groove, one end of the side pressure blocks protrudes from the buckle plate, a third spring is arranged between the side pressure blocks and the side walls of the clamping groove, the plug-in plate is inserted into the clamping groove of the buckle plate, the side pressure blocks abut against the locking grooves of the side hooks on the same side under the elastic force of the third spring, the flat hook is clamped on the locking plate by the hook under the elastic force of the first spring, and the valve plate slides to abut against the plug-in plate. Magnetic sensors and magnetic conductive units are arranged in the two mounting grooves respectively.
2. The quick release double locking buckle of claim 1, wherein: A limiting groove is arranged on the other end of the bottom wall of the connecting groove, the lower end of the first spring is mounted in the limiting groove, a spring column is downwardly arranged on the other end of the flat hook, and the first spring is sleeved on the spring column.
3. The quick release double locking buckle of claim 1, wherein: A T-shaped spring hole is arranged in the flat hook and penetrates the spring column, the second spring is arranged in the T-shaped spring hole and abuts against the small-diameter end of the T-shaped spring hole, and the diameter of the valve ball is smaller than the hole diameter of the large-diameter end of the T-shaped spring hole.
4. The quick release double locking buckle of claim 3, wherein: Gaps are left between the left and right side walls of the flat hook and the left and right side walls of the connecting groove, L-shaped grooves are arranged on the left and right side walls of the side of the flat hook connected with the first spring, L-shaped clamping plates are arranged on the left and right side walls of the valve plate, and the L-shaped clamping plates of the valve plate are slidably connected with the L-shaped grooves on the same side.
5. The quick release double locking buckle of claim 1, wherein: The top wall of the valve plate is an arched wall, anti-skid lines are arranged on the top wall of the valve plate, and locking marks and unlocking marks are arranged on the left and right sides of the anti-skid lines respectively.
6. The quick release double locking buckle of claim 5, wherein: The side wall of the locking plate facing the open end of the clamping groove is a wedge-shaped wall, the side wall of the hook facing the hook hole is an arc-shaped wall, an avoiding hole is arranged on the bottom wall of the clamping groove, and the hole wall of the avoiding hole is aligned with the other side wall of the locking plate.
7. The quick release double locking buckle of claim 1, wherein: Limiting blocks are arranged on the left and right inner side walls of the hook hole respectively.
8. The quick release double locking buckle of claim 1, wherein: