Replaceable pull tabs

Abstract

This utility model discloses a replaceable pull tab pull head, including a base, a trunk-like part disposed on the upper surface of the base, and a pull tab disposed on the trunk-like part. The end of the trunk-like part has a notch for replacing the pull tab. A plug is detachably connected to the trunk-like part, and when the plug is connected to the trunk-like part, a closed receiving hole is formed between the plug and the trunk-like part. The connecting end of the pull tab is disposed within the receiving hole. When the pull tab needs to be replaced, the plug is separated from the trunk-like part, the pull tab is removed from the notch, a new pull tab is replaced, and then the plug is reconnected to the trunk-like part. This utility model not only enables quick pull tab replacement but also has a simple and reliable structure. Furthermore, this utility model is easy to operate, has low production costs, and is easy to promote and popularize.

Description

Technical Field

[0001] This utility model relates to the field of zipper technology, specifically to a zipper pull with replaceable zipper tabs. Background Technology

[0002] Zippers, as a common connecting device, are widely used in clothing, bags, sporting goods, and many other fields. The zipper pull, as the core component of the zipper, directly affects the ease of use and reliability. In zipper pull design, the function of replacing the zipper tab is increasingly favored by the market due to its personalization and ease of maintenance. However, existing designs for replacing zipper tabs still have significant shortcomings.

[0003] First, traditional elephant trunk-shaped zipper pulls typically use a snap-lock mechanism. This structure relies solely on the snap-lock between the cap and the base to bear the pulling force transmitted by the zipper. In actual use, especially under large or continuous pulling forces, the cap is prone to deformation or even detachment due to stress concentration, causing the entire zipper pull to fail. Furthermore, this one-time closure structure cannot be opened once assembled, preventing users from replacing the zipper pull according to personal preference or damage, thus limiting the product's flexibility and lifespan.

[0004] Secondly, to address the issue of replaceable zipper pulls, some more sophisticated zipper pull designs have emerged in existing technologies. These designs typically involve complex base structures, independent locking components, or multi-part combinations, leading to two main problems: First, the assembly process is complex and difficult to complete efficiently with fully automated equipment, often requiring manual intervention or specialized precision assembly machinery, significantly increasing production costs, reducing production efficiency, and failing to meet the demands of large-scale mass production; second, to accommodate additional locking or replacement mechanisms, the overall thickness or internal space of the base often needs to be altered, which may interfere with the normal passage of zipper teeth within the zipper pull, disrupting its original zipping dynamics design, and thus potentially causing reduced smoothness of zipping, jamming, and other problems, sacrificing the zipper's most basic core function.

[0005] Therefore, there is an urgent need in this field for a new type of pull tab structure that can enable convenient and reliable replacement of the pull tab, avoid complex assembly processes to reduce costs, and ensure that the smoothness and reliability of the pull-open process are not sacrificed. Utility Model Content

[0006] This invention provides a replaceable pull tab slider to solve the problems of low efficiency, complex structure, and high cost of existing slider replacements.

[0007] To achieve the purpose of this utility model, this utility model provides a replaceable pull tab pull head, including a base, an elephant trunk disposed on the upper surface of the base, and a pull tab disposed on the elephant trunk. The end of the elephant trunk is provided with a notch for replacing the pull tab, and the elephant trunk is provided with a plug that is detachably connected to it. When the plug is connected to the elephant trunk, the connecting end of the pull tab is placed in a closed receiving hole formed between the plug and the elephant trunk; when the plug is separated from the elephant trunk, the pull tab is separated from the receiving hole through the notch.

[0008] The elephant trunk includes an integrally formed fixing part, a connecting part, and a hook part. One end of the fixing part is fixed to one side of the upper surface of the base. One end of the connecting part is connected to the fixing part, and the other end is connected to the hook part. The hook part is a hook structure with a curved arc extending towards the fixing part, and the notch is formed between its end and the lower end face of the connecting part.

[0009] Furthermore, the connecting part is a rectangular block, with one side of the hook part higher than the side of the fixing part.

[0010] Furthermore, the connecting part is provided with a mounting hole for installing the plug, the shape of the mounting hole matching the shape of the plug, and the diameter of the hole being less than or equal to the outer diameter of the upper part of the plug.

[0011] Furthermore, the upper surface of the end of the hook portion is provided with a countersunk hole for accommodating the end of the plug. The shape of the countersunk hole matches the shape of the lower part of the plug, and its diameter is less than or equal to the outer diameter of the lower part of the plug.

[0012] Furthermore, one side of the end of the hook portion is provided with a protruding edge extending toward the fixing portion, and the upper surface of the other side is provided with a boss extending toward the connecting portion, and the countersunk hole is located between the protruding edge and the boss.

[0013] The bottom of the hook portion is provided with a groove for accommodating the connecting end of the pull tab, and the inner wall of the groove extends away from the end of the hook portion.

[0014] The plug is an inverted conical elastic plug, and a limiting part is provided at the top of the plug.

[0015] In some embodiments, the plug is a screw.

[0016] The base includes an upper wing, a lower wing, and a connecting post connecting the upper and lower wing. The elephant trunk is located on the upper surface of the upper wing.

[0017] The beneficial effects of this utility model are as follows: 1) This utility model features a detachable plug on the elephant trunk. When the plug is connected to the trunk, the connecting end of the pull tab is located within a closed receiving hole formed between the plug and the trunk, effectively preventing the pull tab from detaching. When the pull tab needs to be replaced, the plug is separated from the trunk, the pull tab is removed from the trunk, a new pull tab is installed, and then the plug is reconnected to the trunk. This not only allows for quick replacement of the pull tab but is also simple to operate.

[0018] 2) The elephant trunk-shaped hook design not only prevents the pull tab from wobbling, but also forms a closable receiving hole with the stopper, while distributing some of the pulling force on the base and preventing accidental breakage. A groove at the bottom of the hook allows the pull tab's connecting end to easily engage, fixing it in place when pulled down and preventing it from wobbling, while also providing sufficient space for the pull tab to rotate.

[0019] 3) By designing the plug as an inverted conical elastic plug or bolt, it not only serves as a seal to ensure that the pull tab will not be pulled out at will, but also shares some of the pulling force of the pull tab to prevent the base from breaking.

[0020] Compared with existing zipper heads, this utility model does not require complex electronic components or precision mechanical parts. It only improves the nose structure without affecting the base. It is not only simple in structure and low in production cost, but also easy to promote and popularize. Attached Figure Description

[0021] Figure 1 This is the left view of this utility model.

[0022] Figure 2 This is a front view of the present invention.

[0023] Figure 3 This is a top view of the present invention.

[0024] Figure 4 yes Figure 3 AA section view in the image.

[0025] In the diagram, 10 is the base, 11 is the upper wing, 12 is the lower wing, 13 is the connecting post, 20 is the elephant trunk, 21 is the fixing part, 22 is the connecting part, 201 is the notch, 202 is the receiving hole, 221 is the mounting hole, 23 is the hook part, 231 is the countersunk hole, 232 is the raised edge, 233 is the boss, 234 is the groove, 30 is the plug, 31 is the limiting part, and 40 is the pull tab. Detailed Implementation

[0026] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] Please see Figure 1 This utility model provides a replaceable pull tab zipper head, which includes a base 10, a trunk 20, a plug 30, and a pull tab 40. The plug 30 is detachably connected to the trunk 20, allowing the user to replace the pull tab 40 independently. This utility model only improves the trunk structure, resulting in a simple structure, low cost, and compatibility with different types of zipper head bases, making it easy to promote and popularize.

[0028] like Figure 1 , Figure 2 As shown, the base 10 serves as the core load-bearing structure of the zipper pull, and it can adopt any publicly available conventional zipper base structure. For example... Figure 1 , Figure 2 In the illustrated embodiment, the base 10 includes an upper wing 11, a lower wing 12, and a connecting post 13. The upper wing 11 and lower wing 12 are plate-like structures arranged parallel to each other and opposite to each other. The connecting post 13 is vertically disposed at one end of the upper wing 11 and the lower wing 12, with its upper end connected to the upper wing 11 and its lower end connected to the lower wing 12. The pull tab 40 can be any disclosed structure, and its material can be plastic, metal, or rope, etc., without limitation.

[0029] like Figure 1 As shown, a trunk 20 is provided on the upper surface of the base 10 for connecting the pull tab 40. One end of the trunk 20 is fixed to the base 10, and the other end is located above the base 10. A notch 201 is provided on the side of the trunk 20 away from the fixed end. This notch 201 is used to detach the pull tab 40 from the trunk 20 when replacing it, and to allow the new pull tab 40 to be installed on the trunk 20. Specifically, as... Figure 1 , Figure 3 and Figure 4As shown, the elephant trunk 20 includes an integrally formed fixing part 21, a connecting part 22, and a hook part 23. One end of the fixing part 21 is a rectangular block fixed to the upper surface of the base 10, and the other end is an arc-shaped structure extending towards the pull tab 40, which connects to the connecting part 22. The connecting part 22 is also a rectangular block, with one end connected to the fixing part 21 and the other end connected to the hook part 23. The side of the connecting part 22 located on the hook part 23 is higher than the side located on the fixing part 21 to increase the load-bearing capacity of the elephant trunk 20. A mounting hole 221 is provided on the connecting part 22 for mounting the plug 30. The shape of the mounting hole 221 matches the shape of the upper part of the plug 30, and its diameter is equal to or slightly smaller than the outer diameter of the upper part of the plug 30, so that the plug 30 can be securely installed in the mounting hole 221. The hook portion 23 is a curved hook structure extending towards the fixing portion 21 at one end. One end connects to the connecting portion 22, and the other end is located directly below the connecting portion 22. A notch 201 is formed between the end of the hook portion 23 and the lower surface of the connecting portion 22. The longitudinal height of the notch 201 is preferably sufficient to allow the connecting end of the pull tab 40 to pass through. A countersunk hole 231 is provided on the upper surface of the end of the hook portion 23. This countersunk hole 231 is used to accommodate the lower part of the stopper 30, fixing the stopper 30 to the trunk 20. The shape of the countersunk hole 231 matches the shape of the lower part of the stopper 30, and its diameter is equal to or slightly smaller than the outer diameter of the lower part of the stopper 30. Figure 4 As shown, a protruding edge 232 extending towards the fixing part 21 is provided on one side of the end of the hook portion 23. This protruding edge 232 can increase the bearing area of ​​the trunk 20 and provide sufficient pulling force to prevent the end of the trunk 20 from breaking under force when the end of the plug 30 is fixed to the end of the trunk 20. A boss 233 extending towards the connecting part 22 is provided on the upper surface of the other side of the end of the hook portion 23, and a countersunk hole 231 is located between the protruding edge 232 and the boss 231. The design of the boss 233 can further increase the bearing area of ​​the trunk 20 and provide sufficient pulling force, and can also limit the end of the pull tab 40 to prevent the pull tab 40 from moving too much and causing large-scale shaking. A groove 234 is provided at the bottom of the hook portion 23. The inner wall of the groove 234 extends away from the end of the hook portion 23 and is used to accommodate the connecting end of the pull tab 40. The size of the groove 234 matches the size of the connection point of the pull tab 40, so that it can be fixed when the pull tab 40 is pulled down, preventing the pull tab from shaking randomly.

[0030] like Figure 1 , Figure 3 and Figure 4As shown, a detachable plug 30 is provided on the trunk 20. This plug 30 not only serves a sealing function but also distributes some of the tension on the trunk 20 to prevent breakage. When the pull tab 40 needs to be replaced, the plug 30 is separated from the trunk 20, the pull tab is removed, a new pull tab is installed, and then the plug 30 is inserted back into the trunk 20. Specifically, as... Figure 4 As shown, the stopper 30 is an elastic stopper, which can be made of injection-molded material and has the characteristics of good elasticity and good airtightness. The stopper 30 has an inverted conical structure, and the corresponding mounting hole 221 and countersunk hole 231 are also designed as corresponding inverted conical holes to facilitate the insertion of the stopper 30. The outer diameter of the upper part of the stopper 30 is slightly larger than or equal to the diameter of the mounting hole 221, and the outer diameter of the lower part of the stopper 30 is slightly larger than or equal to the diameter of the countersunk hole 231, so that the stopper 30 can be inserted into the mounting hole 221 and the countersunk hole 231 without easily falling out. A limiting part 31 is provided at the top of the stopper 30, and the outer diameter of the limiting part 31 is larger than the outer diameter of the mounting hole 221, which facilitates the removal of the stopper 30 when replacing the pull tab. In some other embodiments, the stopper 30 can also be designed as other structures, such as a screw. When the stopper 30 is a screw, the mounting hole 221 is a threaded hole corresponding to the upper part of the screw, and the countersunk hole 231 is a threaded hole corresponding to the lower part of the screw.

[0031] like Figure 1 and Figure 4 As shown, the working process of the replaceable pull tab in this embodiment is as follows: When the pull tab 40 needs to be installed, the plug 30 is separated from the trunk 20, and then the connecting end of the pull tab 40 is inserted into the trunk 20 through the notch 201. The plug 30 is then inserted into the mounting hole 221, and the end of the plug 30 is installed in the countersunk hole 231, so that the connecting end of the pull tab 40 is located in the closed receiving hole 202 formed by the plug 30 and the hook portion 23. When the pull tab 40 is pulled, the connecting end of the pull tab 40 is engaged in the groove 234 to fix the pull tab 40 and prevent the pull tab from shaking randomly. When the pull tab 40 needs to be replaced, the plug 30 is separated from the trunk 20, the old pull tab is removed from the notch 201, the new pull tab is installed, and then the plug 30 is installed back into the trunk 20.

[0032] In summary, this invention, by providing a detachable plug 30 on the trunk 20, and ensuring that the connecting end of the pull tab 40 is located within the closed receiving hole 202 formed between the plug 30 and the trunk 20 when the plug 30 is connected to the trunk 20, effectively prevents the pull tab from detaching. When the pull tab 40 needs to be replaced, the plug 30 is separated from the trunk 20, the pull tab 40 is removed from the trunk 20, a new pull tab is replaced, and then the plug 30 is reconnected to the trunk 20. This not only allows for quick replacement of the pull tab but is also simple to operate. Furthermore, the hook design of the trunk 20 not only prevents the pull tab 40 from wobbling randomly but also forms a closed receiving hole 202 with the plug 30, while also distributing some of the pulling force of the trunk 20, preventing accidental breakage. By providing a groove 234 at the bottom of the hook portion 23, the connecting end of the pull tab 40 can easily be engaged therein. This groove serves to fix the pull tab 40 when it is pulled down, preventing it from wobbling freely, while also providing sufficient space for the pull tab to rotate. Furthermore, by designing the stopper 30 as an inverted conical elastic stopper or bolt, it not only provides a sealing function, ensuring the pull tab 40 will not fall out, but also further distributes some of the pulling force on the trunk 20, preventing it from breaking. Compared with existing zipper heads, this invention requires no complex electronic components or precision mechanical parts; it only improves the structure of the trunk 20 without affecting the base. This results in a simple structure, low production cost, and ease of promotion and widespread adoption.

[0033] Although the present invention has been disclosed through the above embodiments, the scope of protection of the present invention is not limited thereto. Any modifications or substitutions made to the above components without departing from the concept of the present invention shall fall within the scope of the claims of the present invention.

Claims

1. A replaceable pull tab puller, characterized in that, The device includes a base, an elephant trunk disposed on the upper surface of the base, and a pull tab disposed on the elephant trunk. The end of the elephant trunk is provided with a notch for replacing the pull tab. The elephant trunk is provided with a plug that can be detachably connected to it. When the plug is connected to the elephant trunk, the connecting end of the pull tab is placed in a closed receiving hole formed between the plug and the elephant trunk. When the plug is separated from the elephant trunk, the pull tab is separated from the receiving hole through the notch.

2. The replaceable pull tab pull head as described in claim 1, characterized in that, The elephant trunk includes an integrally formed fixing part, a connecting part, and a hook part. One end of the fixing part is fixed to one side of the upper surface of the base. One end of the connecting part is connected to the fixing part, and the other end is connected to the hook part. The hook part is a hook structure with a curved arc extending towards the fixing part, and the notch is formed between its end and the lower end face of the connecting part.

3. The replaceable pull tab pull head as described in claim 2, characterized in that, The connecting part is a rectangular block, with one side of the hook part higher than the side of the fixing part.

4. The replaceable pull tab pull head as described in claim 2, characterized in that, The connecting part is provided with a mounting hole for installing the plug. The shape of the mounting hole matches the shape of the plug, and its diameter is less than or equal to the outer diameter of the upper part of the plug.

5. The replaceable pull tab pull head as described in claim 2, characterized in that, The upper surface of the end of the hook portion is provided with a countersunk hole for accommodating the end of the plug. The shape of the countersunk hole matches the shape of the lower part of the plug, and its diameter is less than or equal to the outer diameter of the lower part of the plug.

6. The replaceable pull tab pull head as described in claim 5, characterized in that, The end of the hook portion has a protruding edge extending toward the fixing portion on one side, and a boss extending toward the connecting portion on the other side of its upper surface. The countersunk hole is located between the protruding edge and the boss.

7. The replaceable pull tab pull head as described in claim 2, characterized in that, The bottom of the hook portion is provided with a groove for accommodating the connecting end of the pull tab, and the inner wall of the groove extends away from the end of the hook portion.

8. The replaceable pull tab pull head as described in claim 1, characterized in that, The plug is an inverted conical elastic plug, and a limiting part is provided at the top of the plug.

9. The replaceable pull tab pull head as described in claim 1, characterized in that, The plug is a screw.

10. The replaceable pull tab pull head as described in claim 1, characterized in that, The base includes an upper wing, a lower wing, and a connecting post connecting the upper and lower wing. The elephant trunk is located on the upper surface of the upper wing.

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