A zipper pull

Abstract

The utility model discloses a zipper puller, relates to zipper production technical field, including the puller body and the pull piece, the puller body has the passage for chain belt to pass through, the puller body is equipped with the hollow slot in the width direction both sides of the passage, the pull piece includes the handheld part and the connecting part, the connecting part has two clamping jaw, the clamping jaw is slidably installed in the hollow slot, and the clamping jaw and chain belt mutually abut or mutually separate, the utility model discloses through the sliding fit of clamping jaw and hollow slot, can easily realize the mutual abutment or mutual separation of clamping jaw and chain belt, further realizes the locking or unlocking of puller and chain belt, thereby has saved the part such as horse hook, cap, has simple structure, the assembly is convenient, the advantages such as self -lock reliable and operation smooth, effectively overcome the defect of prior art.

Description

Technical Field

[0001] This utility model relates to the field of zipper manufacturing technology, and in particular to a zipper pull. Background Technology

[0002] The self-locking zipper pull is a key functional component of the zipper. Its core function is to automatically lock after sliding to the target position, preventing unexpected sliding caused by external forces (such as clothing pulling or bag shaking), thereby ensuring the stability of the zipper closure and preventing items from falling or foreign objects from entering. It is widely applicable to products that require reliable closure, such as down jackets, outdoor backpacks, and suitcases.

[0003] Current self-locking zipper pulls generally consist of multiple independent parts, such as the pull body, hook, and cap. Regardless of whether they are made of metal or plastic, each part must be individually molded before assembly through processes such as welding, riveting, or gluing. This multi-part, multi-process production model has two major problems: First, the cumbersome processes lead to high equipment and labor costs and low production efficiency; second, assembly accuracy is easily affected by operating techniques and equipment errors, resulting in poor consistency in locking sensitivity and structural stability of the finished product, and the connection points of multiple parts are prone to becoming vulnerable points after long-term use, shortening the lifespan of the zipper pull. Utility Model Content

[0004] This utility model provides a zipper pull, the main purpose of which is to solve the problems existing in the prior art.

[0005] The present invention adopts the following technical solution: A zipper pull includes a puller body and a pull tab. The puller body has a channel for a chain to pass through. The puller body has hollow grooves on both sides of the channel in the width direction. The pull tab includes a handle portion and a connecting portion. The connecting portion has two claws. The claws are slidably mounted in the hollow grooves, and the claws abut against or separate from the chain.

[0006] Furthermore, the hollowed-out groove has a hollowed-out portion and a blocking portion. The claw abuts against the chain belt through the hollowed-out portion and separates from the chain belt through the blocking portion.

[0007] Furthermore, the cutout groove is provided with blocking portions on both sides along the length of the channel, and the cutout portion is provided between the two blocking portions.

[0008] Furthermore, the blocking part includes a blocking ramp, which is inclined along the hollow part in a direction away from the center of the channel.

[0009] Furthermore, the blocking part also includes a limiting platform, which is disposed on the side of the blocking ramp away from the hollow part.

[0010] Furthermore, both of the aforementioned claws have an elastic deformation capability that enables them to automatically reset.

[0011] Furthermore, the two claws are staggered, and the ends of the claws have locking parts that can engage with the chain teeth.

[0012] Furthermore, the handheld part and the connection are integrally formed.

[0013] Furthermore, the pull head body includes an upper plate, a connecting column, and a lower plate, with the channel formed between the upper plate, the connecting column, and the lower plate, and the hollowed-out grooves provided on both sides of the upper plate in the width direction.

[0014] Furthermore, the upper plate is provided with a sliding groove to facilitate the insertion of the claws into the hollowed-out groove.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model has hollowed-out grooves on both sides of the width direction of the zipper body, and two claws at the connection part of the zipper. Through the sliding cooperation between the claws and the hollowed-out grooves, the claws and the chain can be mutually abutted or separated, thereby realizing the locking or unlocking of the zipper and the chain. This eliminates the need for parts such as hooks and caps, and has the advantages of simple structure, convenient assembly, reliable self-locking and smooth operation, effectively overcoming the defects of the existing technology. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the assembly of the pull head body and the pull tab in this utility model.

[0017] Figure 2 This is a perspective view of the pull tab in this utility model.

[0018] Figure 3 This is a perspective view of the slider body in this utility model.

[0019] Figure 4 This is a side view of the pull head body in this utility model.

[0020] In the diagram: 1-Pull head body; 10-Hollow groove; 101-Hollow section; 102-Blocking section; 103-Blocking ramp; 104-Limiting platform; 11-Upper plate; 111-Slide groove; 12-Connecting column; 13-Lower plate; 2-Pull tab; 21-Handheld part; 22-Connecting part; 221-Claw; 222-Snap-fit ​​part. Detailed Implementation

[0021] The specific embodiments of this utility model are described below with reference to the accompanying drawings. Many details are described below to provide a comprehensive understanding of this utility model; however, those skilled in the art can implement this utility model without these details.

[0022] like Figure 1 As shown, this embodiment provides a zipper pull, including a puller body 1 and a pull tab 2. The puller body 1 has a channel for the chain to pass through. The puller body 1 has hollowed-out grooves 10 on both sides of the channel in the width direction. The pull tab 2 includes a handle part 21 and a connecting part 22. The connecting part 22 has two claws 221, which are slidably installed in the corresponding hollowed-out grooves 10, and the claws 221 abut against or separate from the chain. This embodiment integrates the locking function of the puller into the sliding relationship between the pull tab 2 and the puller body 1. The sliding of the claws 221 directly controls the contact state with the chain, thereby realizing the locking or separation of the puller and the chain, eliminating parts such as hooks and caps, and fundamentally simplifying the structure. At the same time, the hollowed-out grooves 10 are set on both sides of the channel in the width direction, so that the claws 221 can simultaneously abut or separate from both sides of the chain, avoiding locking offset caused by unilateral force and ensuring locking stability.

[0023] like Figure 1 , Figure 3 and Figure 4 As shown, the zipper head body 1 includes an upper plate 11, a connecting post 12, and a lower plate 13. A channel is formed between the upper plate 11, the connecting post 12, and the lower plate 13. Hollow grooves 10 are provided on both sides of the upper plate 11 in the width direction. The upper plate 11 is located on the outside of the chain belt and has a large operating space, which facilitates the assembly of the zipper pull 2 ​​and the sliding of the claw 221, thus improving the convenience of production and use. like Figures 1 to 4 As shown, the slot 10 has a slotted portion 101 and a blocking portion 102. The claw 221 abuts against the chain belt through the slotted portion 101 and separates from the chain belt through the blocking portion 102. The slotted portion 101 allows the claw 221 to contact the chain belt, thereby locking the zipper pull. The blocking portion 102 pushes the claw 221 away from the chain belt, thereby unlocking the zipper pull. This embodiment divides the slot 10 into a slotted portion 101 and a blocking portion 102, directly utilizing the sliding engagement between the claw 221 and the slot 10 to achieve locking or unlocking, thus simplifying the zipper pull structure and reducing the number of parts and assembly steps.

[0024] like Figures 1 to 4As shown, the hollow groove 10 has blocking portions 102 on both sides along the length of the channel, and a hollow portion 101 is provided between the two blocking portions 102. Specifically, in this embodiment, the blocking portions 102 are distributed on both sides of the length of the hollow groove 10 (i.e., the front and rear ends of the sliding of the slider) based on the extension direction of the channel (i.e., the sliding direction of the slider), and the hollow portion 101 is located between the two blocking portions 102, thus forming a structure with a hollow middle and blocking at both ends. When the slider 2 is pulled, the sliding direction of the claw 221 is consistent with the sliding direction of the slider body 1 along the chain, so the claw 221 can smoothly slide to the blocking portion 102, thereby separating from the chain, which facilitates the sliding of the slider body 1, avoids the feeling of jamming during operation, and improves the user's feel. At the same time, the hollow portion 101 is located between the two blocking portions 102, ensuring that the claw 221 can stably stay in the hollow portion 101 and abut against the chain when it is not pulled, ensuring the stability of the self-locking state. like Figures 1 to 4 As shown, the blocking part 102 can be designed as a vertical protrusion or an inclined protrusion structure within the hollow groove 10. However, if it is designed as a vertical protrusion structure, the pawl 221 will collide when it slides to this point, resulting in high operating resistance and easy wear of parts. Therefore, this embodiment preferably uses an inclined protrusion structure, that is, the blocking part 102 is a blocking ramp 103 that is inclined away from the center of the channel along the hollow part 101. Specifically, the inclination direction of the blocking ramp 103 is based on the center of the channel and gradually tilts away from the hollow part 101 in a direction away from the channel, thereby forming an inclined guide surface. When the pawl 221 slides to the blocking ramp 103, it will move smoothly away from the channel along the guide surface, thereby separating from the chain. This makes the action of unlocking the pawl 221 smoother, and the user does not need to apply too much force when pulling the pull tab 2, improving the convenience of operation. like Figures 1 to 4 As shown, the blocking part 102 also includes a limiting platform 104, which is disposed on the side of the blocking ramp 103 away from the hollow part 101. The limiting platform 104 has the following two functions: first, to reserve a buffer space for the blocking ramp 103 to prevent the pawl 221 from sliding along the blocking ramp 103 and falling out of the hollow groove 10 under the action of external force; second, to keep the pawl 221 separated from the chain, thereby maintaining the unlocking posture, so as to facilitate the sliding of the pull head body 1 by the pulling force of the pull tab 2. like Figures 1 to 4As shown, the two claws 221 have an elastic deformation capability that enables them to automatically reset. Therefore, after the claws 221 are pushed away from the chain by the blocking part 102, they can return to their initial position and re-engage with the chain when the pull tab 2 is released, relying on their own elasticity. The design of the claws 221's own elastic deformation capability eliminates the need for cumbersome reset components such as springs, further simplifying the structure and assembly process. In practical applications, the claws 221 can be made of a suitable elastic material to give them elastic deformation capability, but the specific elastic material is not limited here. like Figure 1 As shown, the two claws 221 are staggered, and the ends of the claws 221 have engaging portions 222 that can engage between the chain teeth. Specifically, the two claws 221 do not overlap along the width of the channel, but are staggered. This staggered arrangement allows each claw 221 to engage with the adjacent chain tooth gaps, increasing the engagement contact area and avoiding problems such as force concentration and unstable engagement caused by the two claws 221 being aligned and contacting the same set of chain teeth. The engaging portions 222 of the claws 221 are designed with a semi-circular structure, which is adapted to the chain tooth gaps of the chain belt. They can be embedded in the chain tooth gaps to form a firm physical engagement, preventing the claws 221 from slipping due to vibration and improving the self-locking strength. like Figure 2 As shown, as a preferred embodiment, the handle 21 and the connecting part 22 are integrally formed. Specifically, the pull tab 2 can be formed in one piece by injection molding or stamping, thereby achieving a seamless connection between the handle 21 and the connecting part 22, which improves the overall structural strength of the pull tab 2 and reduces assembly steps.

[0025] like Figures 1 to 4 As shown, the upper plate 11 is provided with a sliding groove 111 to facilitate the insertion of the claw 221 into the hollow groove 10. Specifically, the sliding groove 111 is opened on both sides of the outer end face of the upper plate 11 and communicates with the hollow groove 10. The sliding groove 111 has an inclined sliding platform. Therefore, during assembly, the claw 221 can be pushed into the hollow groove 10 along the sliding groove 111 to complete the engagement, simplifying the assembly operation. like Figures 1 to 4 As shown, the specific usage method of this embodiment is described below: Self-locking state: When the pull tab 2 is not pulled, the claw 221 abuts against the chain belt through the hollow part 101 under its own elasticity, and the locking part 222 is embedded in the gap of the chain teeth, restricting the sliding of the pull head body 1 along the chain belt, thus achieving self-locking. Unlocking and sliding: When the handle 21 of the pull tab 2 is pulled in any direction, the claw 221 slides along the hollow groove 10 toward the blocking ramp 103, so that the locking part 222 gradually disengages from the gap of the chain teeth, thereby unlocking; if the pull tab 2 is pulled further, the claw 221 slides along the blocking ramp 103 to the limiting platform 104, and drives the zipper head body 1 to slide along the chain through the limiting platform 104, thereby opening and closing the zipper. Reset self-locking: When the pull tab 2 is released, the claw 221 slides back to the hollow part 101 along the blocking ramp 103 under its own elasticity, and re-engages with the chain belt. The locking part 222 is inserted into the gap of the chain teeth, and the self-locking state is restored.

[0026] The above are merely specific embodiments of this utility model, but the design concept of this utility model is not limited thereto. Any non-substantial modifications made to this utility model using this concept shall be considered as an infringement of the protection scope of this utility model.

Claims

1. A zipper pull, comprising a puller body and a pull tab, wherein the puller body has a channel for the zipper belt to pass through; characterized in that: The pull head body has hollowed-out grooves on both sides of the width direction of the channel; the pull tab includes a handle part and a connecting part, the connecting part has two claws, the claws are slidably installed in the hollowed-out grooves, and the claws abut against or separate from the chain.

2. A zipper pull as described in claim 1, characterized in that: The slotted groove has a cutout portion and a blocking portion. The claw abuts against the chain through the cutout portion and separates from the chain through the blocking portion.

3. A zipper pull as described in claim 2, characterized in that: The hollow groove is provided with the blocking parts on both sides along the length of the channel, and the hollow part is provided between the two blocking parts.

4. A zipper pull as described in claim 3, characterized in that: The blocking part includes a blocking ramp, which is inclined along the hollow part in a direction away from the center of the channel.

5. A zipper pull as described in claim 4, characterized in that: The blocking part also includes a limiting platform, which is disposed on the side of the blocking ramp away from the hollow part.

6. A zipper pull as described in claim 1, characterized in that: Both of the aforementioned claws have elastic deformation capabilities that enable them to automatically reset.

7. A zipper pull as described in claim 1, characterized in that: The two claws are staggered and the ends of the claws have a locking part that can be engaged between the chain teeth.

8. A zipper pull as described in claim 1, characterized in that: The handheld part is integrally formed with the connecting part.

9. A zipper pull as described in claim 1, characterized in that: The pull head body includes an upper plate, a connecting column, and a lower plate, with the channel formed between the upper plate, the connecting column, and the lower plate. The upper plate has hollowed-out grooves on both sides in the width direction.

10. A zipper pull as described in claim 9, characterized in that: The upper plate is provided with a sliding groove to facilitate the insertion of the claws into the hollowed-out groove.

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