A spring sheet type self-locking puller
The one-piece molded hook design simplifies the structure of the concealed spring-loaded self-locking zipper, solves the problem of complex assembly, and achieves stable self-locking function and simplified assembly process.
Patent Information
- Application Number
- CN202522009905.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-18
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-09-18
AI Technical Summary
Existing invisible spring-loaded self-locking zipper pulls have complex structures, are difficult to assemble, and require multiple parts.
The design features a one-piece molded hook, including a fixed section, a connecting section, and a stop section. The hook, made of elastic material, achieves locking and unlocking functions under the action of the pull tab. The movable section provides additional movement space, resulting in a simple and stable structure.
The self-locking function of the zipper pull has been simplified, making assembly easier, improving the stability of locking and unlocking the zipper pull, and reducing production costs.
Smart Images

Figure CN224924664U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of zipper technology, specifically to a spring-loaded self-locking zipper pull. Background Technology
[0002] Invisible zippers conceal most of the zipper's components, enhancing its aesthetic appeal. They consist of teeth, a slider, and other parts. Typically, an invisible zipper has two sets of teeth, each with its own row of teeth, arranged in an alternating pattern. Invisible zippers are primarily used in down jackets, denim clothing, leather jackets, high-end jackets, and winter coats. Compared to nylon and resin zippers, they are more robust but also more expensive, and are commonly used in jeans, coats, and backpacks.
[0003] The concealed spring-loaded self-locking zipper is the core component that enables concealed zippers to function. The concealed spring-loaded self-locking zipper can lock itself after the zipper is fully pulled. Currently, the self-locking of concealed spring-loaded self-locking zippers is accomplished by components such as springs and pins, which require multiple parts and are relatively complex to assemble.
[0004] In view of this, the inventors of this case conducted in-depth research on the above-mentioned problems, which led to the creation of this case. Utility Model Content
[0005] The purpose of this invention is to provide a spring-loaded self-locking zipper that is simple in structure and easy to assemble.
[0006] To achieve the above objectives, this utility model adopts the following technical solution: A spring-loaded self-locking zipper pull includes a zipper pull body, a pull tab, and a hook disposed on the zipper pull body for locking or unlocking zipper teeth. The zipper pull body is provided with a guide for placing the hook. The hook includes a fixed section and a movable section extending outward from one end of the fixed section. The movable section includes a connecting part for mating with the pull tab and a stop part for mating with the zipper teeth. The fixed section, the connecting part, and the stop part are integrally formed. The main body of the connecting part is arc-shaped, and its top end is arc-shaped or flat.
[0007] In a preferred embodiment of this utility model, the hook is formed by folding a single sheet of metal and flattening it to form a front section, a middle section, and a rear section. The front section is folded upward along the direction of the front section to form the fixing section. The middle section is bent upward along the direction of the rear section to form the connecting part. The rear section is bent downward along the direction of the rear section so that the end of the rear section faces downward to form the stop part.
[0008] In a preferred embodiment of the present invention, the guide includes a first end and a second end disposed opposite to each other. The first end extends along the direction of the zipper teeth and has two first baffles, which form a fixed channel for placing the fixed section.
[0009] In a preferred embodiment of this utility model, the folded fixed section includes an upper fixed section and a lower fixed section. The two first baffles are symmetrically provided with mounting grooves for placing the upper fixed section. The upper fixed section extends outward with an extension section. The extension section is disposed on the mounting groove, and a limiting unit is provided between the extension section and the mounting groove to restrict the extension section from leaving the mounting groove.
[0010] In a preferred embodiment of the present invention, the limiting unit includes a limiting block disposed on the mounting groove and a limiting groove formed on the extension section, wherein the limiting block is disposed within the limiting groove.
[0011] In a preferred embodiment of this utility model, the top of each of the two first baffles extends with a first extension plate along the direction of the zipper teeth. The thickness of the first extension plate is less than the thickness of the first baffle. After the fixing segment is embedded in the fixing channel, the two first extension plates are riveted together, so that the fixing segment is fixed in the fixing channel.
[0012] In a preferred embodiment of this utility model, the second end extends with two second baffles along the direction of the zipper teeth, and the two second baffles form an active channel for placing the active segment. The top of each of the two second baffles extends with a second extension plate along the direction of the zipper teeth. The thickness of the second extension plate is less than the thickness of the second baffle. When the active segment is embedded in the active channel, the two second extension plates are riveted together, so that the active segment is embedded in the active channel.
[0013] In a preferred embodiment of this utility model, the zipper head body includes a base plate, left and right wing plates respectively disposed on opposite sides of the base plate, a guide member disposed between the left and right wing plates, and a groove penetrating the base plate and the guide member provided at the second end corresponding to the position of the stop part. The stop part is movably disposed in the groove and locks or unlocks the zipper teeth.
[0014] In a preferred embodiment of this utility model, a receiving groove is formed between the first end and the second end, the hook is straddling the top of the receiving groove, and cooperates with the receiving groove to form the receiving channel of the pull tab.
[0015] By adopting the aforementioned design scheme, the beneficial effects of this utility model are: 1. The hook is made of elastic material, which can move the connecting part and the stop part upward under the action of the pull tab, thereby releasing the stop part from locking the zipper teeth and strengthening the locking and unlocking function of the zipper head on the zipper teeth; 2. The movable section is located at the second end, providing sufficient space for the stop to move upward, allowing the zipper to lock or unlock the chain teeth, thus further enhancing the locking and unlocking function of the zipper. 3. The fixed section and the movable section fold in different directions, so that the movable section moves towards or away from the fixed section under the action of elastic force; the present invention has a simple structure, is easy to process, and has good stability and reliability. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model; Figure 2 This is a cross-sectional view of Embodiment 1 of the present utility model; Figure 3 This is a cross-sectional view of another angle of an embodiment of the present invention; Figure 4 This is a schematic diagram of the hook structure in this utility model; Figure 5 This is a schematic diagram of the structure of Embodiment 2 of the present invention; In the diagram: 1. Slider body, 11. Base plate, 111. Groove, 12. Left and right wing plates, 13. Guide member, 131. First end, 132. Second end, 133. Receiving groove, 134. First baffle, 1341. Mounting groove, 1342. Limiting block, 135. Fixed channel, 136. First extension plate, 137. Second baffle, 138. Movable channel, 139. Second extension plate, 14. Upper wing plate, 15. Lower wing plate, 16. Guide post, 2. Hook, 21. Fixed section, 211. Upper fixed section, 212. Lower fixed section, 213. Extension section, 214. Limiting groove, 22. Movable section, 221. Connecting part, 222. Stopping part, 23. Receiving channel. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0018] The terms "first," "second," "third," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.
[0019] Example 1: Refer to Figures 1 to 4 : A spring-loaded self-locking zipper pull includes a zipper pull body 1, a zipper pull (not shown in the figure), and a hook 2 disposed on the zipper pull body 1 for locking or unlocking the zipper teeth, thereby realizing the opening and closing of the chain.
[0020] Hook 2 is formed by folding a single sheet of metal, but it is not limited to metal materials; this embodiment does not limit it. Hook 2, when fully flattened, forms a front section, a middle section, and a rear section. The front section is folded upwards along the front section direction to form a fixed section 21. The middle section is bent upwards along the rear section direction to form a connecting part 221. The rear section is bent downwards along the rear section direction so that its end faces downwards to form a stop part 222. The connecting part 221 and the stop part 222 constitute a movable section 22, which extends outwards from one end of the fixed section 21. The connecting part 221 is used to mate with the pull tab, and the stop part 222 is used to mate with the zipper teeth. The fixed section 21, the connecting part 221, and the stop part 222 are integrally formed. The main body of the connecting part 221 is arc-shaped, and its top end is also arc-shaped (e.g., ...). Figure 2 and Figure 3 ) or straight (such as Figure 4 The flat-topped connector 221 allows the pull tab to pull the zipper more smoothly.
[0021] In a preferred embodiment of this utility model, the zipper head body includes a base plate 11, left and right wing plates 12 respectively disposed on opposite sides of the base plate 11, and a guide member 13 disposed between the left and right wing plates 12. Optionally, the base plate 11, the left and right wing plates 12, and the guide member 13 may be fixedly connected or be an integrally formed structure of metal material, but it is not limited to metal material, and this embodiment does not limit it.
[0022] As a preferred embodiment of the present invention, the guide member 13 includes a first end 131 and a second end 132. The first end 131 is close to the inlet of the zipper head body 1, and the second end 132 is close to the engagement outlet of the zipper head body 1. The width of the guide member 13 gradually decreases from the inlet of the zipper head body 1 to the engagement outlet of the zipper head body 1.
[0023] A receiving groove 133 is formed between the first end 131 and the second end 132. The hook 21 is straddling the top of the receiving groove 133 and cooperates with the receiving groove 133 to form a receiving channel 23 for the pull tab.
[0024] Two first baffles 134 extend from the top of the first end 131 toward the zipper teeth, forming a fixing channel 135 for placing the fixing section 211. Furthermore, a first extension plate 136 extends from the top of each of the two first baffles 134 along the direction of the zipper teeth, the thickness of the first extension plate 136 being less than the thickness of the first baffle 134. During assembly, after the fixing section 211 is inserted into the fixing channel 135, the two first baffles 134 are located on the left and right sides of the fixing section 211. The hook 22 is then placed in the fixing channel 135, and the two first extension plates 136 are bent so that they abut against the upper end of the fixing section 211, thereby fixing the hook 22 within the fixing channel 135.
[0025] In a preferred embodiment of this invention, the folded-down fixing section 21 includes an upper fixing section 211 and a lower fixing section 212. Two first baffles 134 are symmetrically provided with mounting grooves 1341 for placing the upper fixing section 211. The upper fixing section 211 extends outward with an extension section 213, which is disposed on the mounting groove 1341. A limiting unit is provided between the extension section 213 and the mounting groove 1341 to prevent the extension section from disengaging from the mounting groove 1341. Specifically, the limiting unit includes a limiting block 1342 disposed on the mounting groove 1341 and a limiting groove 214 formed on the extension section 213. The limiting block 1342 is disposed within the limiting groove 214. In this embodiment, the mounting groove 1341 is a mounting groove 1341 disposed on the first baffle 134 with its opening away from the zipper teeth, facilitating the installation of the hook 2 from top to bottom.
[0026] As a preferred embodiment of this utility model, the second end 132 is provided with a groove 111 that penetrates the bottom plate 11 and the guide member 13 at the position corresponding to the movable section 22. The movable section 22 is movably disposed in the groove 111 and locks or unlocks the zipper teeth.
[0027] Two second baffles 137 extend from the second end 132 along the direction of the zipper teeth, forming a movable channel 138 for the movable section 22 to be placed. Furthermore, a second extension plate 139 extends from the top of each of the two second baffles 137 along the direction of the zipper teeth, the thickness of the second extension plate 139 being less than the thickness of the second baffle 137. During assembly, after the movable section 22 is inserted into the movable channel 138, the two second baffles 137 are located on the left and right sides of the movable section 22. Then, the two second extension plates 139 are bent so that they abut against the upper end of the movable section 22, thereby fixing the hook 2 within the movable channel 138.
[0028] Example 2, refer to Figure 5 The only difference between this embodiment and Embodiment 1 is that: The zipper pull body of this embodiment differs from the concealed zipper pull body of Embodiment 1 described above. The zipper pull body of this embodiment is consistent with a commonly used zipper pull body, including an upper wing plate 14, a lower wing plate 15, and a guide post 16 connecting the upper wing plate 11 and the lower wing plate 12. The upper wing plate 14, lower wing plate 15, and guide post 16 combine to form a roughly Y-shaped slide for a zipper tooth to pass through. An upwardly extending guide member 13 is provided on the upper wing plate 14. Optionally, the bottom guide member 13, upper wing plate 14, lower wing plate 15, and guide post 16 can be fixedly connected or be a one-piece metal structure; however, it is not limited to metal materials, and this embodiment does not impose any limitations on this.
[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A spring-loaded self-locking zipper, characterized in that: The device includes a zipper head body, a zipper tab, and a hook disposed on the zipper head body for locking or unlocking the zipper teeth. The zipper head body is provided with a guide for placing the hook. The hook includes a fixed section and a movable section extending outward from one end of the fixed section. The movable section includes a connecting part for mating with the zipper tab and a stop part for mating with the zipper teeth. The fixed section, the connecting part, and the stop part are integrally formed. The main body of the connecting part is arc-shaped, and its top end is arc-shaped or flat. The guide includes a first end and a second end disposed opposite to each other, and the first end has two first baffles extending along the direction of the zipper teeth. The folded fixed section includes an upper fixed section and a lower fixed section. The two first baffles are symmetrically provided with mounting grooves for placing the upper fixed section. The upper fixed section extends outward with an extension section. The extension section is disposed on the mounting groove, and a limiting unit is provided between the extension section and the mounting groove to restrict the extension section from leaving the mounting groove.
2. A spring-loaded self-locking zipper pull according to claim 1, characterized in that: The hook is a sheet of elastic material folded and fully flattened to form a front section, a middle section and a rear section. The front section is folded upward along the direction of the front section to form the fixing section. The middle section is bent upward along the direction of the rear section to form the connecting part. The rear section is bent downward along the direction of the rear section so that the end of the rear section faces downward to form the stop part.
3. A spring-loaded self-locking zipper according to claim 2, characterized in that: The two first baffles form a fixed channel for placing the fixed section.
4. A spring-loaded self-locking zipper according to claim 1, characterized in that: The limiting unit includes a limiting block disposed on the mounting groove and a limiting groove formed on the extension section, wherein the limiting block is disposed within the limiting groove.
5. A spring-loaded self-locking zipper puller according to claim 3, characterized in that: Both of the first baffles have a first extension plate extending from their tops along the direction of the zipper teeth. The thickness of the first extension plate is less than the thickness of the first baffle. After the fixing segment is embedded in the fixing channel, the two first extension plates are riveted together, so that the fixing segment is fixed in the fixing channel.
6. A spring-loaded self-locking zipper according to claim 1, characterized in that: The second end has two second baffles extending along the direction of the zipper teeth. The two second baffles form an active channel for placing the active segment. The top of each of the two second baffles has a second extension plate extending along the direction of the zipper teeth. The thickness of the second extension plate is less than the thickness of the second baffle. When the active segment is embedded in the active channel, the two second extension plates are riveted together, so that the active segment is embedded in the active channel.
7. A spring-loaded self-locking zipper according to claim 1, characterized in that: The zipper head body includes a base plate and left and right wing plates respectively disposed on opposite sides of the base plate. The guide is disposed between the left and right wing plates. The second end is provided with a groove penetrating the base plate and the guide corresponding to the position of the stop part. The stop part is movably disposed in the groove and locks or unlocks the zipper teeth.
8. A spring-loaded self-locking zipper according to claim 1, characterized in that: A receiving groove is formed between the first end and the second end, and the hook is straddling the top of the receiving groove and cooperating with the receiving groove to form the receiving channel of the pull tab.
