Bidirectional locking zipper puller

Abstract

According to the technical scheme, the bidirectional locking zipper puller is characterized in that the bidirectional locking zipper puller comprises a zipper puller body, a zipper pull and an elastic piece, two limiting bases are symmetrically arranged on the zipper puller body along the center of the zipper puller body, an installation groove for installation of the elastic piece is formed between the two limiting bases, and a limiting area for installation of the zipper pull is arranged in the middle of each limiting base; limiting grooves are formed in the two sides of the pull piece, and a pushing block is arranged on the pull piece and located on one side of the limiting grooves. The elastic piece is provided with a limiting surface matched with the limiting groove, the two sides of the limiting surface are provided with guide arc surfaces, and the zipper puller can guarantee locking of the two-way position and can also guarantee smoothness when rotating towards the middle.

Description

Technical Field

[0001] The utility model relates to a zipper head, and more specifically, to a two-way locking zipper head. Background Art

[0002] Due to its unique structure, the zipper head can slide along the track of the zipper teeth, thereby tightly connecting two pieces of fabric or other materials that need to be joined together, or easily separating them as needed. This function makes the zipper a very convenient tool for connection and separation.

[0003] Existing zipper heads have a locking function and can fix the zipper when needed to prevent it from accidentally sliding open. However, the existing zipper heads have the following several disadvantages: 1. In order to achieve two-way locking, the design of the two-way locking zipper head is relatively complex, and it is necessary to add buckle teeth and other mechanical structures on both sides of the teeth, resulting in cumbersome assembly.

[0004] 2. When the pull tab rotates, it is easy to be stuck by force, resulting in inconvenient operation. Summary of the Utility Model

[0005] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a two-way locking zipper head, which can not only ensure the locking of the two-way position but also ensure the smoothness when rotating towards the middle.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A two-way locking zipper head includes a zipper head body, a pull tab, and an elastic sheet. The zipper head body is symmetrically provided with two groups of limit seats along its center. An installation groove for installing the elastic sheet is formed between the two limit seats. A limit area for installing the pull tab is provided in the middle of each limit seat;

[0007] Limit grooves are provided on both sides of the pull tab, and a push block is provided on the pull tab. The push block is located on one side of the limit groove;

[0008] The elastic sheet is provided with a limit surface that cooperates with the limit groove, and guide arc surfaces are provided on both sides of the limit surface.

[0009] To sum up, the utility model has the following beneficial effects: First, install the pull tab in the limit area, and then snap the elastic sheet into the installation groove. During the rotation of the pull tab, when changing from the limit state to the non-limit state, at this time, the pull tab abuts against the limit surface through the push block, causing the elastic sheet to move upward, achieving the effect of separating the elastic sheet from the zipper. At this time, the zipper can be opened and closed through the zipper head. When the movement is in place, rotate the pull tab again to separate the push block from the limit surface. The elastic sheet returns downward under the action of its own elasticity and forms a position stop with the zipper again, thereby playing a limiting role.

[0010] The design of the limit groove can facilitate the proper engagement of the elastic piece and the pull tab, thus avoiding the situation of automatic unlocking.

[0011] The design of the guiding arc surface can reduce the resistance during the rotation process and prevent the pull tab from getting stuck. Brief Description of the Drawings

[0012] Figure 1 is a three-dimensional structural schematic diagram of a two-way locking zipper head;

[0013] Figure 2 is a three-dimensional structural schematic diagram of the first side of the pull tab;

[0014] Figure 3 is a three-dimensional structural schematic diagram of the second side of the pull tab;

[0015] Figure 4 is a three-dimensional structural schematic diagram of the elastic piece;

[0016] Figure 5 is a three-dimensional structural schematic diagram of the zipper head body.

[0017] Reference numerals: 1. Zipper head body; 11. First insertion hole; 12. Second insertion hole; 13. Stroke limit part; 14. Rotation limit part; 2. Pull tab; 21. Push block; 22. Guiding arc surface; 23. First limit groove; 24. Second limit groove; 3. Elastic piece; 31. Limit surface; 32. Guiding arc surface; 33. Limit block; 34. Main body; 35. Clamping block; 4. Limit seat; 41. Limit area; 42. First seat body; 43. Second seat body; 44. Clamping block; 45. Clamping groove; 5. Installation groove. Detailed Description of the Preferred Embodiments

[0018] The following further describes the present invention in detail with reference to the drawings and embodiments. The same reference numerals are used for the same components. It should be noted that the terms "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the terms "bottom surface" and "top surface", "inner" and "outer" respectively refer to the directions towards or away from the geometric center of a specific component.

[0019] Referring to Figures 1 to 5 As shown, to achieve the above object, the present invention provides the following technical solution: A two-way locking zipper head includes a zipper head body 1, a pull tab 2 and an elastic piece 3. Two groups of limit seats 4 are symmetrically arranged along the center of the zipper head body 1. An installation groove 5 for installing the elastic piece 3 is formed between the two limit seats 4. A limit area 41 for installing the pull tab 2 is provided in the middle of each limit seat 4;

[0020] Both sides of the pull tab 2 are provided with limiting grooves, and a pushing block 21 is arranged on the pull tab 2. The pushing block 21 is located on one side of the limiting groove;

[0021] The elastic piece 3 is provided with a limiting surface 31 that cooperates with the limiting groove, and guiding arc surfaces 32 are arranged on both sides of the limiting surface 31.

[0022] In the design of the present utility model, as Figure 1 shown, first install the pull tab 2 in the limiting area 41, and then snap the elastic piece 3 into the installation groove 5. During the process of rotating the pull tab 2, such as when changing from the limiting state to the non-limiting state, at this time, the pull tab 2 abuts against the limiting surface 31 through the pushing block 21, so that the elastic piece 3 moves upward, achieving the effect of separating the elastic piece 3 from the zipper. At this time, the zipper can be opened and closed through the zipper head. When the movement is in place, then rotate the pull tab 2 again, so that the pushing block 21 separates from the limiting surface 31, and the elastic piece 3 resets downward under the action of its own elasticity and forms a clamping position with the zipper again, thereby playing a limiting role.

[0023] The design of the limiting groove can facilitate the proper engagement between the elastic piece 3 and the pull tab 2, thereby avoiding the situation of automatic unlocking.

[0024] The design of the guiding arc surface 32 can reduce the resistance during the rotation process and prevent the pull tab 2 from getting stuck.

[0025] Moreover, since both sides of the pull tab 2 are provided with limiting grooves, the pull tab 2 can be in limiting cooperation with the elastic piece 3 when it is flipped to the upper side or the lower side, playing a role of double-sided locking.

[0026] Guiding arc surfaces 22 connected to the limiting grooves are arranged on both sides of the pushing block 21. With this structural design, during the rotation process of the pull tab 2, through the cooperation between the guiding arc surface 22 and the guiding arc surface 32, the rotation of the pull tab 2 becomes smoother.

[0027] A first insertion hole 11 and a second insertion hole 12 are arranged on the zipper head body 1. One end of the elastic piece 3 is limited and fixed in the first insertion hole 11, and the other end of the elastic piece 3 is movably inserted into the second insertion hole 12.

[0028] The elastic piece 3 includes a limiting block 33, a main body 34, and a clamping block 35. The limiting block 33 and the clamping block 35 are respectively arranged at both ends of the main body 34.

[0029] The limiting block 33 is arranged on one side of the main body 34, and the cross-section of the limiting block 33 is arranged in a triangular structure;

[0030] A stroke limiting portion 13 is arranged on one side of the zipper head body 1 where the second insertion hole 12 is located. The stroke limiting portion 13 is used to abut against the main body 34.

[0031] The clamping block 35 is arranged in a convex structure;

[0032] Two rotation limiting portions 14 are disposed in the first plug hole 11 , and the clamping block 35 is clamped between the two rotation limiting portions 14 .

[0033] Combination Figure 1 and Figure 4 as well as Figure 5 As shown, one end of the elastic sheet 3 is clamped between the two rotation limiting parts 14 through the clamping block 35 to form a fixed clamping connection, and the upper end size of the clamping block 35 gradually increases to form an upper and lower limiting function.

[0034] The other end of the elastic sheet 3 is then extended from the first plug hole 11 and abuts against the travel limiter 13 through one side of the main body 34 , thereby playing a role of travel limiter.

[0035] The limiting surface 31 is arranged in an inclined surface and is arranged to be inclined downward from the first plug hole 11 to the second plug hole 12;

[0036] The limiting grooves are respectively a first limiting groove 23 and a second limiting groove 24, and both are arranged in an inclined surface;

[0037] When the pull tab 2 is in the upper limit position, the first limit groove 23 cooperates with and abuts against the limit surface 31;

[0038] When the pull tab 2 is in the lower limit state, the second limit groove 24 cooperates and abuts against the limit surface 31 .

[0039] As 2 and Figure 3 as well as Figure 4 As shown, the first limiting groove 23, the second limiting groove 24 and the limiting surface 31 are all inclined surfaces, which has the following advantages: 1. It can cater to the design of the limiting block 33. 2. It is convenient for the limiting groove to fully abut against the limiting surface 31 to ensure the stability of the limit.

[0040] like Figure 2 As shown, the side of the first limiting groove 23 away from the pushing block 21 is higher than the side close to the pushing block 21;

[0041] like Figure 3 As shown, the side of the second limiting groove 24 away from the pushing block 21 is lower than the side close to the pushing block 21 .

[0042] The two limiting seats 4 each include a first seat body 42 and a second seat body 43. A clamping block 44 is hingedly provided on the first seat body 42, and a clamping slot 45 is provided on the second seat body 43. The design of this structure can perform a secondary limiting on the pull tab 2 (the primary limiting is provided by the elastic sheet 3), and by bending the clamping block 44, the limiting area 41 is opened or closed.

[0043] The above are only the preferred embodiments of the present utility model, and the protection scope of the present utility model is not limited to the above embodiments. All technical solutions falling within the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that for those of ordinary skill in the art, several improvements and refinements made without departing from the principle of the present utility model should also be regarded as within the protection scope of the present utility model.

Claims

1. A two-way locking zipper head, comprising a zipper head body (1), a pull tab (2) and an elastic sheet (3), wherein: The zipper head body (1) is symmetrically provided with two groups of limiting seats (4) along its center, and a mounting groove (5) for mounting the elastic sheet (3) is formed between the two limiting seats (4), and a limiting area (41) for mounting the pull tab (2) is provided in the middle of each limiting seat (4); Limiting grooves are arranged on both sides of the pull tab (2), and a pushing block (21) is arranged on the pull tab (2), and the pushing block (21) is located on one side of the limiting groove; The elastic sheet (3) is provided with a limiting surface (31) matched with the limiting groove, and both sides of the limiting surface (31) are provided with guiding arc surfaces (32).

2. A two-way locking zipper pull according to claim 1, characterized in that: Both sides of the pushing block (21) are provided with guiding arc surfaces (22) connected to the limiting grooves.

3. The two-way locking zipper pull according to claim 1, characterized in that: The zipper head body (1) is provided with a first plugging hole (11) and a second plugging hole (12); one end of the elastic sheet (3) is fixed in the first plugging hole (11), and the other end of the elastic sheet (3) is movably plugged into the second plugging hole (12).

4. The two-way locking zipper pull according to claim 3, characterized in that: The limiting surface (31) is arranged in an inclined surface and is arranged to be inclined downward from the first plug hole (11) to the second plug hole (12); The limiting grooves are respectively a first limiting groove (23) and a second limiting groove (24), and both are arranged in an inclined surface; When the pull tab (2) is in the upper limit position, the first limit groove (23) cooperates with and abuts against the limit surface (31); When the pull tab (2) is in the lower limit state, the second limit groove (24) cooperates with and abuts against the limit surface (31).

5. The two-way locking zipper pull according to claim 3, characterized in that: The elastic sheet (3) comprises a limit block (33), a main body (34) and a clamping block (35), wherein the limit block (33) and the clamping block (35) are respectively arranged at two ends of the main body (34).

6. The two-way locking zipper pull according to claim 5, characterized in that: The limit block (33) is arranged on one side of the main body (34), and the cross section of the limit block (33) is arranged in a triangular structure; The zipper head body (1) is provided with a travel limit portion (13) on one side of the second plug hole (12), and the travel limit portion (13) is used to abut against the main body (34).

7. The two-way locking zipper pull according to claim 5, characterized in that: The clamping block (35) is arranged in a convex structure; Two rotation limiting parts (14) are arranged in the first plug hole (11), and the clamping block (35) is clamped between the two rotation limiting parts (14).

8. A two-way locking zipper slider according to any one of claims 1 to 7, characterized in that: The two limiting seats (4) each comprise a first seat body (42) and a second seat body (43); a clamping block (44) is hingedly provided on the first seat body (42); and a clamping groove (45) is provided on the second seat body (43).

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