Zipper capable of preventing cloth from being stuck

Abstract

The zipper comprises first zipper cloth, a zipper head, second zipper cloth, upper rolling balls and lower rolling balls, the second zipper cloth is arranged on one side of the first zipper cloth, first zipper teeth and second zipper teeth are fixed to the surface of the first zipper cloth and the surface of the second zipper cloth respectively, and the upper rolling balls and the lower rolling balls are arranged on the first zipper cloth and the second zipper cloth respectively. The bottom end of the first zipper cloth is fixedly provided with a lock head, the zipper head is arranged between the first zipper cloth and the second zipper cloth, the top end of the zipper head is sleeved with a zipper handle, the two sides of the zipper head are each provided with an upper blocking part and a lower blocking part, the upper blocking parts are internally provided with upper rolling grooves at equal intervals, and the lower blocking parts are internally provided with lower rolling grooves at equal intervals. The upper rolling grooves are formed in the upper blocking part, the upper balls are arranged in the upper rolling grooves, the lower blocking part is internally provided with lower rolling grooves at equal intervals, and the lower balls are arranged in the lower rolling grooves. According to the zipper puller, the structure of the zipper puller is optimized, the zipper puller has the effect of preventing cloth from being clamped, the upper balls and the lower balls are hidden in the zipper puller, and attractiveness of the zipper is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of zippers, in particular to a zipper that avoids getting stuck. Background Art

[0002] A zipper is a common connector. Its components include chain teeth, sliders, upper and lower stops, and locking parts. Its working principle is to slide the slider to make the two rows of chain teeth engage or separate with each other, thereby closing or opening the opening of the object, and is used to merge or separate objects. Zippers are widely used in industrial products and are commonly used components on clothing, bags, tents and other items. The main types of zippers include nylon zippers, resin zippers and metal zippers. Nylon zippers are popular because of their softness, lightness and low cost, and are often used in underwear and thin fabric clothing; metal zippers are often used in jeans, jackets, backpacks and other clothing because of their sturdiness; fireproof zippers have the characteristics of high temperature resistance and are often used in fire-fighting suits or kitchen work clothes and other clothing that require fire protection. When opening and closing the zipper, sometimes the slider clamps the cloth and makes the zipper unable to move. Forcibly pulling the cloth out will not only damage the cloth, but also expand the gap between the sliders, affecting the service life of the zipper, causing trouble for people.

[0003] The Chinese patent with the publication number CN210054837U discloses an anti-cloth-stuck zipper, comprising chain teeth, a zipper head installed on the chain teeth, and zipper cloths fixed on both sides of the horizontal ends of the chain teeth, the two vertical ends at the centers of the front end surfaces of the zipper cloths are bonded with fixing blocks, the fixing blocks and the anti-cloth-stuck plate arranged on the front end surface of the zipper cloth are rotatably connected through a rotating shaft, a clamping block is bonded to the side of the anti-cloth-stuck plate close to the zipper cloth, a locking portion is bonded to the center of the side of the zipper cloth close to the anti-cloth-stuck plate, a rotating shell is bonded to the side of the zipper cloth close to the anti-cloth-stuck plate and at both vertical ends of the locking portion, and a slider is arranged inside the rotating shell.

[0004] Although the above-mentioned zipper has a certain anti-cloth-stuck effect by rotating the anti-cloth plate to make other cloths contact with the zipper head, in actual operation, it is necessary to rotate the anti-cloth-stuck plate and then pull the zipper, which is very troublesome and inconvenient to use. In addition, the anti-cloth-stuck plates are additionally added on both sides of the zipper, which affects the aesthetics of the zipper. Utility Model Content

[0005] The purpose of the utility model is to provide a zipper which can avoid being stuck, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present utility model provides the following technical solutions: A zipper that avoids jamming, comprising a first zipper cloth, a zipper head, a second zipper cloth, upper balls and lower balls. The second zipper cloth is disposed on one side of the first zipper cloth. First chain teeth and second chain teeth are respectively fixed on the surfaces of the first zipper cloth and the second zipper cloth, and the first chain teeth and the second chain teeth are tightly engaged. A lock head is fixed at the bottom end of the first zipper cloth. The zipper head is disposed between the first zipper cloth and the second zipper cloth, and a zipper handle is sleeved on the top end of the zipper head. Upper blocking parts and lower blocking parts are disposed on both sides of the zipper head. Equally spaced upper rolling grooves are disposed inside the upper blocking parts, and the upper balls are disposed inside the upper rolling grooves, and one end of the upper balls extends outside the upper rolling grooves. Equally spaced lower rolling grooves are disposed inside the lower blocking parts, and the lower balls are disposed inside the lower rolling grooves, and one end of the lower balls extends outside the lower rolling grooves.

[0007] Preferably, positioning blocks are respectively fixed at one ends of the surface of the zipper head. There are two groups of positioning blocks and they are symmetrically distributed on both sides of the zipper handle, which is convenient for limiting the zipper handle.

[0008] Preferably, a first stop block and a second stop block are respectively fixed at the end parts of the first zipper cloth and the second zipper cloth at the position of the lock head, and both the first stop block and the second stop block are clamped with the lock head.

[0009] Preferably, there are four groups of both the upper balls and the lower balls. Both the upper balls and the lower balls are composed of ball shells and ball bodies, and the ball bodies are disposed inside the ball shells, so that the upper balls and the lower balls roll along with the movement of the zipper head.

[0010] Preferably, a first spring is installed inside the upper rolling groove, and one end of the first spring is fixedly connected to the upper ball, providing an elastic supporting force for the upper ball.

[0011] Preferably, a second spring is installed inside the lower rolling groove, and one end of the second spring is fixedly connected to the lower ball, providing an elastic supporting force for the lower ball.

[0012] Preferably, a rubber block is adhered to one side of the positioning block, and the rubber block is in close fit with the zipper handle, which is convenient for positioning the zipper handle.

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

[0014] By respectively arranging four groups of upper rolling grooves and lower rolling grooves inside the upper blocking part and the lower blocking part of the zipper head, upper rolling balls and lower rolling balls are respectively arranged inside the upper rolling grooves and the lower rolling grooves. Both the upper rolling balls and the lower rolling balls are composed of a ball shell and a ball body. The ball body can rotate inside the ball shell. The first zipper cloth and the second zipper cloth respectively pass through the gap between the upper blocking part and the lower blocking part. Under the elastic action of the first spring and the second spring, the upper rolling balls and the lower rolling balls are in contact with the upper and lower surfaces of the first zipper cloth and the second zipper cloth, covering the gap between the first zipper cloth, the second zipper cloth and the zipper head. Thus, when pulling the zipper head, it can prevent other cloth from getting stuck in the zipper head. Moreover, the upper rolling balls and the lower rolling balls roll as the zipper head moves, with small frictional resistance, ensuring the smoothness of zipper pulling. This design optimizes the structure of the zipper head, making it have the effect of preventing cloth from getting stuck. Moreover, both the upper rolling balls and the lower rolling balls are hidden inside the zipper head, ensuring the aesthetics of the zipper. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the front view structural schematic diagram of the present utility model;

[0016] Figure 2 is the three-dimensional enlarged structural schematic diagram of the zipper head of the present utility model;

[0017] Figure 3 is the side view sectional structural schematic diagram of the zipper head of the present utility model;

[0018] Figure 4 is the enlarged structural schematic diagram of the zipper head of the present utility model.

[0019] In the figure: 1. First zipper cloth; 2. First chain teeth; 201. First stop block; 3. Zipper head; 301. Upper blocking part; 302. Lower blocking part; 4. Second zipper cloth; 5. Second chain teeth; 501. Second stop block; 6. Lock head; 7. Zipper handle; 8. Upper rolling ball; 9. Lower rolling ball; 10. Upper rolling groove; 11. First spring; 12. Lower rolling groove; 13. Second spring; 14. Ball shell; 15. Ball body; 16. Positioning block; 17. Rubber block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figures 1-4, An embodiment provided by the present utility model: A zipper that avoids jamming, including a first zipper cloth 1, a zipper head 3, a second zipper cloth 4, upper balls 8 and lower balls 9. The second zipper cloth 4 is arranged on one side of the first zipper cloth 1. First teeth 2 and second teeth 5 are respectively fixed on the surfaces of the first zipper cloth 1 and the second zipper cloth 4. The first teeth 2 and the second teeth 5 are tightly engaged. A lock head 6 is fixed at the bottom end of the first zipper cloth 1;

[0022] The zipper head 3 is arranged between the first zipper cloth 1 and the second zipper cloth 4, and a zipper handle 7 is sleeved on the top end of the zipper head 3. Upper blocking parts 301 and lower blocking parts 302 are arranged on both sides of the zipper head 3. Equally spaced upper rolling grooves 10 are arranged inside the upper blocking parts 301. The upper balls 8 are arranged inside the upper rolling grooves 10. One end of the upper balls 8 extends outside the upper rolling grooves 10. Equally spaced lower rolling grooves 12 are arranged inside the lower blocking parts 302. The lower balls 9 are arranged inside the lower rolling grooves 12. One end of the lower balls 9 extends outside the lower rolling grooves 12;

[0023] Positioning blocks 16 are respectively fixed at one ends of the surface of the zipper head 3. There are two groups of positioning blocks 16 and they are symmetrically distributed on both sides of the zipper handle 7;

[0024] At the position of the lock head 6, first stop blocks 201 and second stop blocks 501 are respectively fixed at the end parts of the first zipper cloth 1 and the second zipper cloth 4, and the first stop blocks 201 and the second stop blocks 501 are both clamped with the lock head 6;

[0025] There are four groups of both the upper balls 8 and the lower balls 9. Both the upper balls 8 and the lower balls 9 are composed of ball shells 14 and ball bodies 15. The ball bodies 15 are arranged inside the ball shells 14;

[0026] A first spring 11 is installed inside the upper rolling grooves 10. One end of the first spring 11 is fixedly connected with the upper balls 8;

[0027] A second spring 13 is installed inside the lower rolling grooves 12. One end of the second spring 13 is fixedly connected with the lower balls 9;

[0028] Specifically, the first zipper cloth 1 and the second zipper cloth 4 respectively pass through the gaps between the upper blocking parts 301 and the lower blocking parts 302. Under the elastic action of the first spring 11 and the second spring 13, the upper balls 8 and the lower balls 9 are in contact with the upper and lower surfaces of the first zipper cloth 1 and the second zipper cloth 4, covering the gaps between the first zipper cloth 1, the second zipper cloth 4 and the zipper head 3. Thus, it can prevent other cloth from getting stuck in the zipper head 3 when pulling the zipper head 3. Moreover, the upper balls 8 and the lower balls 9 roll as the zipper head 3 moves, with small frictional resistance, ensuring the smoothness of zipper pulling;

[0029] A rubber block 17 is adhered to one side of the positioning block 16. The rubber block 17 is in close fit with the zipper handle 7;

[0030] Specifically, after pulling the slider 3, the slider handle 7 is clamped between the positioning blocks 16 and attached to the surface of the slider 3. The positioning blocks 16 limit the slider handle 7, and the rubber blocks 17 fix the slider handle 7 through friction, so as to position the slider handle 7 and prevent it from shaking.

[0031] When the embodiment of the present application is in use: First, the zipper is composed of a first zipper cloth 1, first teeth 2, a first stop 201, a second zipper cloth 4, second teeth 5, a second stop 501, and a slider 3. Since there are four groups of upper rolling grooves 10 and lower rolling grooves 12 inside the upper blocking portion 301 and the lower blocking portion 302 of the slider 3 respectively, upper balls 8 and lower balls 9 are respectively arranged inside the upper rolling grooves 10 and the lower rolling grooves 12. Both the upper balls 8 and the lower balls 9 are composed of a ball shell 14 and a ball body 15. The ball body 15 can rotate inside the ball shell 14. The first spring 11 and the second spring 13 respectively provide elastic supporting forces for the upper balls 8 and the lower balls 9. Secondly, the first zipper cloth 1 and the second zipper cloth 4 respectively pass through the gaps between the upper blocking portion 301 and the lower blocking portion 302. Under the elastic action of the first spring 11 and the second spring 13, the upper balls 8 and the lower balls 9 contact the upper and lower surfaces of the first zipper cloth 1 and the second zipper cloth 4, covering the gaps between the first zipper cloth 1, the second zipper cloth 4 and the slider 3. Thus, when pulling the slider 3, other cloths can be prevented from getting stuck in the slider 3. Moreover, the upper balls 8 and the lower balls 9 roll as the slider 3 moves, with small frictional resistance, ensuring the smoothness of pulling the zipper. This design optimizes the structure of the slider 3, making it have the effect of preventing cloth from getting stuck. Also, both the upper balls 8 and the lower balls 9 are hidden inside the slider 3, ensuring the beauty of the zipper. And after pulling the slider 3, the slider handle 7 is clamped between the positioning blocks 16 and attached to the surface of the slider 3. The positioning blocks 16 limit the slider handle 7, and the rubber blocks 17 fix the slider handle 7 through friction, so as to position the slider handle 7 and prevent it from shaking.

[0032] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A zipper for preventing jamming, characterized in that: The invention comprises a first zipper cloth (1), a zipper head (3), a second zipper cloth (4), an upper ball (8) and a lower ball (9), wherein the second zipper cloth (4) is arranged on one side of the first zipper cloth (1), a first chain tooth (2) and a second chain tooth (5) are fixed on the surface of the first zipper cloth (1) and the second zipper cloth (4), respectively, and the first chain tooth (2) and the second chain tooth (5) are tightly engaged, a lock head (6) is fixed at the bottom end of the first zipper cloth (1), the zipper head (3) is arranged between the first zipper cloth (1) and the second zipper cloth (4), and the zipper head (3) is fixed to the bottom end of the first zipper cloth (1). A zipper handle (7) is mounted on the top, and an upper stopper (301) and a lower stopper (302) are arranged on both sides of the zipper head (3). The upper stopper (301) is provided with upper rolling grooves (10) at equal intervals inside, and the upper ball (8) is arranged inside the upper rolling groove (10), and one end of the upper ball (8) extends to the outside of the upper rolling groove (10). The lower stopper (302) is provided with lower rolling grooves (12) at equal intervals inside, and the lower ball (9) is arranged inside the lower rolling groove (12), and one end of the lower ball (9) extends to the outside of the lower rolling groove (12).

2. A zipper for preventing jamming according to claim 1, characterized in that: A positioning block (16) is fixed to one end of the surface of the zipper head (3), and two groups of positioning blocks (16) are provided and symmetrically distributed on both sides of the zipper handle (7).

3. A zipper for preventing jamming according to claim 1, characterized in that: A first stop block (201) and a second stop block (501) are respectively fixed to the ends of the first zipper cloth (1) and the second zipper cloth (4) at the position of the lock head (6), and the first stop block (201) and the second stop block (501) are both engaged with the lock head (6).

4. The zipper for preventing jamming according to claim 1, characterized in that: The upper balls (8) and the lower balls (9) are each provided with four groups. The upper balls (8) and the lower balls (9) are each composed of a ball shell (14) and a ball body (15). The ball body (15) is arranged inside the ball shell (14).

5. The zipper for preventing jamming according to claim 1, characterized in that: A first spring (11) is installed inside the upper rolling groove (10), and one end of the first spring (11) is fixedly connected to the upper rolling ball (8).

6. The zipper for preventing jamming according to claim 1, characterized in that: A second spring (13) is installed inside the lower rolling groove (12), and one end of the second spring (13) is fixedly connected to the lower rolling ball (9).

7. A zipper for preventing jamming according to claim 2, characterized in that: A rubber block (17) is adhered to one side of the positioning block (16), and the rubber block (17) is tightly fitted to the zipper handle (7).

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