A zipper puller with adjustable tightness

Abstract

The utility model provides a zipper head with adjustable tightness, comprising an upper piece and a lower piece, a fixing part connecting the upper piece and the lower piece, a deformation groove on the fixing part, and a connecting hole penetrating the fixing part and the upper piece, the connecting hole passing through the deformation groove, and an adjusting screw connected to the inner thread of the connecting hole. The distance between the upper piece and the lower piece can be adjusted by the adjusting screw, so that the adjustment can be made according to the size of the zipper teeth to adapt to different models of zipper tapes.

Description

Technical Field

[0001] The utility model relates to the technical field of zippers, in particular to a zipper head with adjustable tightness. Background Art

[0002] The zipper structure is generally composed of two zipper tapes and a zipper head. In daily life, zippers are used on clothes, bags, bags and other items.

[0003] During the use of the zipper, the zipper head may be damaged and needs to be replaced. However, it is difficult to buy the same zipper head as the previous one, and the new zipper head often has the problem of incompatibility when in use (the size of the zipper tape teeth does not match the size of the slot in the zipper head for the zipper tape teeth to pass through). Utility Model Content

[0004] In view of the problems pointed out in the background technology, the utility model provides a zipper head with adjustable tightness to solve the above technical problems.

[0005] The technical solution of the utility model is achieved in this way:

[0006] A zipper head with adjustable tightness comprises an upper piece and a lower piece, wherein a fixing portion connecting the upper piece and the lower piece is provided between the upper piece and the lower piece, wherein the fixing portion is provided with a deformation groove, and further comprises a connecting hole penetrating the fixing portion and the upper piece, wherein the connecting hole passes through the deformation groove, and an adjusting screw is connected to the inner thread of the connecting hole.

[0007] The utility model is further configured that the deformation groove is arranged through both sides and the rear side of the fixing part.

[0008] The utility model is further configured such that the opening width of the deformation groove gradually decreases from the back to the front.

[0009] The utility model is further configured that the adjusting screw comprises a screw rod and a screw head, a spring is sleeved on the screw rod, and the spring is arranged between the screw head and the upper sheet.

[0010] The utility model is further configured that the upper sheet and the lower sheet are respectively provided with through holes for connecting the pull rings.

[0011] By adopting the above technical solution, the beneficial effects of the utility model are as follows:

[0012] The zipper head with adjustable tightness provided by the utility model can adjust the distance between the upper piece and the lower piece by adjusting the screw, so that it can be adjusted according to the size of the zipper teeth to adapt to zipper tapes of different models. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0014] Figure 1 The structure of the utility model is shown in FIG. Figure 1 .

[0015] Figure 2 The structure of the utility model is shown in FIG. Figure 1 sectional view of .

[0016] Figure 3 The structure of the utility model is shown in FIG. Figure 2 .

[0017] Figure 4 The structure of the utility model is shown in FIG. Figure 2 sectional view of . DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] For reference Figure 1-4 The utility model is described as follows:

[0020] Embodiment 1: A zipper head with adjustable tightness, comprising an upper piece 1 and a lower piece 2, a fixing portion 3 connecting the upper piece 1 and the lower piece 2 is provided between the upper piece 1 and the lower piece 2, and a through hole 8 for connecting a pull ring is provided on the upper piece 1 and the lower piece 2, respectively. The above is the prior art, and the following is the improved technical solution of the present application:

[0021] The fixing portion 3 is in the shape of an elongated strip and is arranged along the front-to-back direction. A deformation groove 4 is provided on the fixing portion 3. The deformation groove 4 is arranged through both sides and the rear side of the fixing portion 3. The deformation groove 4 is conical and the opening width of the deformation groove 4 gradually decreases from the back to the front. By setting the deformation groove 4, the rear ends of the fixing portion 3 can be deformed and moved closer to each other.

[0022] The connecting hole 5 also includes a connecting hole 5 that passes through the fixing portion 3 and the upper sheet 1. The inner wall of the connecting hole 5 is provided with an internal thread. The connecting hole 5 passes through the deformation groove 4. The internal thread of the connecting hole 5 is connected with an adjusting screw 6. By tightening the adjusting screw 6, the fixing portion 3 can be forced to deform toward the deformation groove 4, so as to adjust the distance between the upper sheet 1 and the lower sheet 2.

[0023] The deformation groove 4 divides the connecting hole 5 into two sections. An inner wall of a section of the connecting hole 5 close to the lower plate 2 is provided with an internal thread, and a section of the connecting hole 5 away from the lower plate 2 is a smooth hole.

[0024] The adjusting screw 6 includes a screw rod and a screw head, and a spring 7 is sleeved on the screw rod, and the spring 7 is arranged between the screw head and the upper plate 1. The adjusting screw 6 applies elastic force to the upper plate 1 through the spring 7. With such an elastic structure, the opening size of the adjusted deformation groove 4 can have a certain elastic jump. When the zipper teeth are stuck, the deformation groove 4 is subjected to the pulling force of the zipper tape, and the deformation groove 4 is deformed to open, so that the zipper tape can pass through.

[0025] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A zipper head with adjustable tightness, comprising an upper piece (1) and a lower piece (2), wherein a fixing portion (3) connecting the upper piece (1) and the lower piece (2) is provided between the upper piece (1) and the lower piece (2), wherein: The fixing portion (3) is provided with a deformation groove (4), and also includes a connecting hole (5) that passes through the fixing portion (3) and the upper plate (1), the connecting hole (5) passes through the deformation groove (4), and the connecting hole (5) is internally threadedly connected to an adjusting screw (6).

2. The zipper pull with adjustable tightness according to claim 1, characterized in that: The deformation groove (4) is arranged through both sides and the rear side of the fixing part (3).

3. The zipper pull with adjustable tightness according to claim 2, characterized in that: The opening width of the deformation groove (4) gradually decreases from the back to the front.

4. The zipper pull with adjustable tightness according to claim 1, characterized in that: The adjusting screw (6) comprises a screw rod and a screw head. A spring (7) is sleeved on the screw rod. The spring (7) is arranged between the screw head and the upper plate (1).

5. The zipper pull with adjustable tightness according to claim 1, characterized in that: The upper sheet (1) and the lower sheet (2) are respectively provided with through holes (8) for connecting pull rings.

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