Double-layer strong anti-theft zipper

Abstract

The utility model relates to the technical field of anti-theft zippers, in particular to a double-layer strong anti-theft zipper which comprises an outer cloth cover, one end of the outer cloth cover is provided with a first butt joint frame, one end of the first butt joint frame is movably connected with a protective clamping cover, one end of the protective clamping cover is fixedly connected with a sewing head, and the other end of the outer cloth cover is provided with a puller. The top end of the pull head is fixedly connected with an upper pull seat, and the bottom end of the pull head is fixedly connected with a lower pull seat. Through the arrangement of the outer cloth cover, the pull head, the upper pull base, the lower pull base, the outer clamping frame, the pull connecting groove, the inner clamping base, the protective rubber strip, the outer zipper teeth, the inner cloth strip and the inner zipper teeth, safer double-layer powerful anti-theft operation of the whole zipper can be achieved, in the actual use process, a worker can install the pull head in the outer cloth cover, and the pull head is prevented from being damaged. When the pull head is pulled, the pull head can pass through the outer clamping frames and the pull connection grooves at the four corners outside the two sides and the inner clamping base inside.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-theft zippers, in particular to a double-layer strong anti-theft zipper. Background Art

[0002] A fastener consisting of two belts with a row of metal or plastic teeth on each belt, used to connect the edges of an opening. A sliding piece can pull the two rows of teeth into an interlocking position to close the opening. It is connected to an object to tighten, stabilize or guide the chain of the object. The zipper consists of chain teeth, a slider, upper and lower stops or locking parts, etc. Among them, the chain teeth are the key part, which directly determines the side pull strength of the zipper. Generally, a zipper has two chain belts, each of which has a row of chain teeth. The two rows of chain teeth are staggered with each other. The slider clamps the chain teeth on both sides, and the chain teeth on both sides can be engaged or disengaged with the help of the pull loop.

[0003] For example, patent document CN 219628971 U discloses a double-layer nylon tooth anti-theft zipper, belonging to the field of zipper technology. The zipper comprises two outer fabric layers of equal height and parallel to each other, outer and inner sprockets mounted on the two outer fabric layers, wherein the outer and inner sprockets are used to connect the two outer fabric layers. A slider is fixedly connected above the outer sprocket, and a handle is mounted on the slider. The handle has insertion holes extending through both sides. A square block is fixedly bonded to one end of the two outer fabric layers, wherein the square block has a fixing groove on the side facing the handle, and the handle is inserted into the fixing groove. The square block also has a lock hole on the side facing the handle, and a key is inserted into the lock hole. One end of the key extends into the lock hole and is connected to a lock core. This double-layer nylon tooth anti-theft zipper secures the handle to the square block, preventing the two sprockets from being opened at will, thus achieving an anti-theft function.

[0004] However, when the zipper is actually used for anti-theft, due to the limitation of its own structure, it can usually only use a single-layer chain tooth method to perform the anti-theft operation. However, the single-layer chain teeth are easily damaged by the outside, and the slider position is easily pulled open quickly, which cannot provide a high level of anti-theft operation. At the same time, the equipment cannot fully lock and protect the slider position, and cannot meet daily use needs. Therefore, it is urgent to design a double-layer strong anti-theft zipper to solve the above problems. Utility Model Content

[0005] The purpose of the present utility model is to provide a double-layer strong anti-theft zipper to solve the problem proposed in the above background technology that the existing structure can only adopt a single-layer chain tooth method to perform the anti-theft operation when performing actual zipper anti-theft use due to its own structural limitations. However, the single-layer chain tooth is easily damaged by the outside, and the slider position is easily pulled open quickly, which cannot provide a high anti-theft operation. At the same time, the equipment cannot fully lock and protect the slider position, and cannot meet daily use needs.

[0006] To achieve the above object, the present invention provides the following technical solution: a double-layer strong anti-theft zipper, comprising an outer fabric cover, one end of which is provided with a first docking frame, one end of which is movably connected to a protective card cover, and one end of which is fixedly connected to a sewing head;

[0007] A pull head is provided at the other end of the outer cloth cover, the top end of the pull head is fixedly connected to an upper pull seat, and the bottom end of the pull head is fixedly connected to a lower pull seat.

[0008] Preferably, both sides of the slider are fixedly connected to outer card frames at the upper and lower ends, and a pulling groove is provided between the upper and lower outer card frames.

[0009] Preferably, an inner seat is provided at the inner center of the slider, and a protective rubber strip is fixedly connected to one end of the inner seat.

[0010] Preferably, the upper and lower ends of the protective card cover are fixedly connected with positioning card covers, and the first docking frame and the slider are adapted to each other.

[0011] Preferably, a second docking frame is provided at one end of the outer fabric cover, and outer link teeth are provided at the centers of the upper and lower ends of the outer fabric cover.

[0012] Preferably, inner fabric strips are provided on both sides of the inner wall of the outer fabric cover, and inner link teeth are provided in the centers of the two groups of inner fabric strips.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The double-layer strong anti-theft zipper can realize a safer double-layer strong anti-theft operation of the zipper as a whole through the outer cloth cover, slider, upper pull-up seat, lower pull-down seat, outer card frame, pull-connecting groove, inner card seat, protective rubber strip, outer link teeth, inner cloth strip and inner link teeth. In actual use, the staff can install the slider inside the outer cloth cover and slide it back and forth. When the slider is pulled, the outer card frames and pull-connecting grooves at the four corners of the outside and the inner card seat inside can be used to respectively perform the inner and outer double-layer pulling and closing at the upper and lower outer link teeth of the outer cloth cover and the inner link teeth of the inner cloth strips on both sides of the inner cloth cover. The inside and outside are pulled and closed synchronously to perform a double-layer anti-theft protection operation. At the same time, the upper pull-up seats at the upper and lower ends of the slider can be adapted to the outer link teeth to ensure that the whole cannot be easily pulled from the outside, which reflects the practicality of the equipment design.

[0015] This double-layer strong anti-theft zipper further improves the overall use effect of the equipment by providing an outer cloth cover, a first docking frame, a protective card cover, a sewing head, an upper pull seat, a positioning card cover and a second docking frame. In daily use, after the slider pulls the outer cloth cover inside and outside to the end, it is pulled out from the first docking frame at one end of the outer cloth cover and enters the protective card cover at one end of the first docking frame. Daily, it is only necessary to install the protective card cover on the inner side of the package through the sewing head on the back, and it can be matched with the protective card cover to cover the slider. At the same time, the upper pull seats at the upper and lower ends of the slider can adaptably enter the positioning card covers at the upper and lower ends of the protective card cover for adaptive cover connection protection, thereby achieving a safer anti-pull-open protection operation of the outer cloth cover, reflecting the comprehensiveness of the equipment design. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0017] Figure 2 This is an overall schematic diagram of the slider structure of the utility model;

[0018] Figure 3 This is an overall schematic diagram of the outer cloth cover structure of the utility model;

[0019] Figure 4 For this utility model Figure 1 A magnified schematic diagram of the structure at center A.

[0020] In the figure: 1. Outer cloth cover; 2. First docking frame; 3. Protective card cover; 4. Sewing head; 5. Pull head; 6. Upper pull seat; 7. Lower pull seat; 8. Outer card frame; 9. Pulling groove; 10. Inner card seat; 11. Protective rubber strip; 12. Positioning card cover; 13. Second docking frame; 14. Outer link teeth; 15. Inner cloth strip; 16. Inner link teeth. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1-4 , an embodiment provided by the utility model:

[0023] A double-layer strong anti-theft zipper includes an outer fabric cover 1, a first docking frame 2 is provided at one end of the outer fabric cover 1, a protective card cover 3 is movably connected to one end of the first docking frame 2, a sewing head 4 is fixedly connected to one end of the protective card cover 3, a positioning card cover 12 is fixedly connected to the upper and lower ends of the protective card cover 3, the first docking frame 2 is adapted to the slider 5, a second docking frame 13 is provided at one end of the outer fabric cover 1, outer chain teeth 14 are provided at the centers of the upper and lower ends of the outer fabric cover 1, inner fabric strips 15 are provided on both sides of the inner wall of the outer fabric cover 1, and inner chain teeth 16 are provided at the centers of the two groups of inner fabric strips 15. When the slider 5 is pulled, the outer card frames 8 and the pulling grooves 9 at the four corners on both sides and the inner card seat 10 inside can be used to pull the inner and outer double layers together.

[0024] The pull head 5 and the other end of the outer cloth cover 1 are provided with a pull head 5, the top of the pull head 5 is fixedly connected to the upper pull seat 6, the bottom end of the pull head 5 is fixedly connected to the lower pull seat 7, the upper and lower sides of the pull head 5 are fixedly connected to the outer card frame 8, and a pulling groove 9 is provided between the upper and lower outer card frames 8. The inner center of the pull head 5 is provided with an inner card seat 10, and one end of the inner card seat 10 is fixedly connected to a protective rubber strip 11. The upper pull seats 6 at the upper and lower ends of the pull head 5 can adaptably enter the positioning card covers 12 at the upper and lower ends of the protective card cover 3 for adaptive cover connection protection, thereby realizing a safer anti-pull-open protection operation of the outer cloth cover 1.

[0025] Working principle: When in use, the user first installs the slider 5 inside the outer cloth cover 1 and slides it back and forth. When the slider 5 is pulled, the outer card frames 8 and the connecting grooves 9 at the four corners of the outer sides and the inner card seats 10 inside can be used to respectively perform the inner and outer double-layer pulling and closing of the upper and lower outer chain teeth 14 of the outer cloth cover 1, as well as the inner chain teeth 16 of the inner cloth strips 15 on both sides of the inner cloth cover 1. The inner and outer synchronous pulling and closing operations can perform a double-layer anti-theft protection operation. At the same time, the upper pull seats 6 at the upper and lower ends of the slider 5 can be adapted and pulled together with the outer chain teeth 14 to ensure that the whole cannot be easily pulled from the outside. The zipper 5 is provided with a plurality of zipper shaped parts, and the zipper 5 is provided with a plurality of zipper shaped parts, and the zipper 5 is provided with a plurality of zipper shaped parts.

[0026] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A double-layer strong anti-theft zipper, comprising an outer fabric cover (1), characterized in that: One end of the outer cloth cover (1) is provided with a first docking frame (2), one end of the first docking frame (2) is movably connected to a protective card cover (3), and one end of the protective card cover (3) is fixedly connected to a sewing head (4); A pull head (5) is provided at the other end of the outer cloth cover (1), the top end of the pull head (5) is fixedly connected to an upper pull seat (6), and the bottom end of the pull head (5) is fixedly connected to a lower pull seat (7).

2. A double-layer strong anti-theft zipper according to claim 1, characterized in that: Both sides of the slider (5) are fixedly connected to outer card frames (8) at the upper and lower ends, and a connecting groove (9) is provided between the upper and lower outer card frames (8).

3. The double-layer strong anti-theft zipper according to claim 1, characterized in that: An inner card seat (10) is provided at the inner center of the slider (5), and a protective rubber strip (11) is fixedly connected to one end of the inner card seat (10).

4. The double-layer strong anti-theft zipper according to claim 1, characterized in that: The upper and lower ends of the protective card cover (3) are fixedly connected with positioning card covers (12), and the first docking frame (2) and the pull head (5) are adapted to each other.

5. The double-layer strong anti-theft zipper according to claim 1, characterized in that: A second docking frame (13) is provided at one end of the outer cloth cover (1), and outer chain teeth (14) are provided at the centers of the upper and lower ends of the outer cloth cover (1).

6. The double-layer strong anti-theft zipper according to claim 1, characterized in that: Inner cloth strips (15) are provided on both sides of the inner wall of the outer cloth cover (1), and inner chain teeth (16) are provided at the centers of the two groups of inner cloth strips (15).

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