A fatigue-resistant and wear-resistant zipper tooth structure

Abstract

This utility model discloses a fatigue-resistant and wear-resistant zipper tooth structure, relating to the field of zipper manufacturing technology. Specifically, it is a fatigue-resistant and wear-resistant zipper tooth structure, including a tooth root, a tooth base, a tooth waist, and a tooth head. A connecting groove is formed in the middle of the tooth root, and locking grooves are formed around the tooth waist and tooth head. A metal buckle is fixedly installed inside the locking groove. Through the cooperative arrangement of the tooth waist and tooth head, this fatigue-resistant and wear-resistant zipper tooth structure can increase the contact area and reduce pressure to achieve wear resistance. The metal buckle provides both smoothness and wear resistance. The tooth base provides high strength and resistance to breakage.

Description

Technical Field

[0001] This utility model relates to the field of zipper manufacturing technology, specifically to a fatigue-resistant and wear-resistant zipper tooth structure. Background Technology

[0002] Zippers, through the engagement and disengagement of teeth, enable the quick opening and closing of items. They are convenient, fast, and provide a good closure, making them widely used in clothing, bags, and packaging. They are a very common structure in daily life. Zippers consist of core components such as teeth, a slider, and stopcocks (top and bottom stops). The opening and closing of a zipper mainly relies on the continuously arranged teeth. The shape and material of the teeth play a decisive role in the quality of the zipper. Specifically, the fatigue resistance and wear resistance of the teeth significantly impact the quality. With societal development, user demands for zippers are increasing, and manufacturers need to improve zipper quality to gain market share. However, traditional zippers have a small contact area when closing, leading to excessively high local pressure. Metal zippers may experience uneven sliding due to their high coefficient of friction, and excessive friction can also cause burrs on the teeth, leading to jamming. Plastic zippers may suffer from insufficient hardness, resulting in significant wear and tear, making them prone to damage. Furthermore, plastic teeth are not strong enough and may break from the root after prolonged use or if foreign objects become lodged in them. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this invention provides a fatigue-resistant and wear-resistant zipper tooth structure, which solves the problems mentioned in the background section.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a zipper tooth shape fatigue-resistant and wear-resistant structure, including a tooth root, a tooth base, a tooth waist, and a tooth head, wherein a connecting groove is provided in the middle of the tooth root, and a locking groove is provided around the tooth waist and tooth head, and a metal buckle is fixedly installed inside the locking groove.

[0007] Preferably, the metal buckle is made of high-strength aluminum alloy with anodized surface, which has high strength and good surface wear resistance, and the chain teeth are made of nylon or polytetrafluoroethylene, which are plastics with certain strength and low surface friction coefficient.

[0008] Preferably, the inner and outer contours of the card slot are such that the head size is smaller than the bottom size, and the shape, size, and thickness of the metal buckle are exactly the same as the card slot, so that the metal buckle can be perfectly embedded in the card slot.

[0009] Preferably, the chain tooth head is a ball head, and the chain tooth waist is an arc with the same radius as the ball head of the chain tooth, and the two chain tooth waists can wrap around the chain tooth head.

[0010] Preferably, a portion is symmetrically cut off from both sides of the chain tooth root, and the length of the cut-off portion is greater than the connecting groove. The chain tooth is connected to the chain belt through the connecting groove. When the chain tooth is connected to the chain belt, the cut-off portion forms a rectangular groove between the two chain teeth. This groove allows two closely spaced chain teeth to turn.

[0011] Preferably, the two sides of the bottom of the chain tooth extend outward along the arc of the chain tooth waist, and the bottom of the chain tooth has the largest width, making it very strong and not easy to break.

[0012] This utility model provides a fatigue-resistant and wear-resistant zipper tooth structure, which has the following beneficial effects:

[0013] 1. The fatigue-resistant and wear-resistant zipper tooth structure, through the cooperative arrangement of the tooth waist and tooth head, enables the zipper tooth structure to increase the contact area and reduce pressure to achieve wear resistance. Since the tooth waist is an arc shape with the same radius as the tooth head ball, the two tooth waists can effectively wrap the tooth head when the zipper is closed, thereby increasing the contact area, reducing pressure and achieving wear resistance.

[0014] 2. The zipper tooth anti-fatigue and wear-resistant structure, through the setting of metal buckles, gives the zipper tooth anti-fatigue and wear-resistant structure both smoothness and wear resistance. By embedding metal buckles into the plastic zipper tooth heads, the zipper teeth have both the smoothness of plastic zippers and the hardness of metal chains, making the zipper both smooth and wear-resistant during use.

[0015] 3. The zipper tooth shape has a fatigue-resistant and wear-resistant structure. Through the setting of the tooth bottom, the zipper tooth shape has a high strength and is not easy to break. Since the two sides of the tooth bottom extend outward along the arc of the tooth waist, the width of the tooth bottom is increased, which makes it very strong and not easy to break. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of the three-dimensional view of this utility model;

[0017] Figure 2 This is a structural schematic diagram of the left view of this utility model;

[0018] Figure 3 This is a structural schematic diagram of a cross-sectional view of the present invention;

[0019] Figure 4 This is a schematic diagram of the assembly of the chain teeth and the chain belt of this utility model.

[0020] In the diagram: 1. Chain tooth root; 2. Chain tooth bottom; 3. Chain tooth waist; 4. Chain tooth head; 5. Connecting groove; 6. Card slot; 7. Metal buckle. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Example

[0023] Please see Figures 1 to 4 This utility model provides a technical solution: a zipper tooth shape fatigue-resistant and wear-resistant structure, including a tooth root 1, a tooth base 2, a tooth waist 3, and a tooth head 4. A connecting groove 5 is provided in the middle of the tooth root 1, and a slot 6 is provided around the tooth waist 3 and the tooth head 4. A metal buckle 7 is fixedly installed inside the slot 6.

[0024] Specifically, the metal buckle 7 is made of high-strength aluminum alloy with anodized surface, which has high strength and good surface wear resistance. The chain teeth are made of nylon or polytetrafluoroethylene, which have certain strength and low surface friction coefficient. When the chain is pulled, the metal buckle 7 and the chain tooth head 4 come into contact with each other. The chain tooth head 4 makes the pulling smooth. The high hardness of the metal buckle 7 can greatly reduce wear, making the zipper both smooth and wear-resistant, thus greatly increasing its service life.

[0025] Please see Figure 3 The inner and outer contours of the card slot 6 are such that the head size is smaller than the bottom size. The shape, size and thickness of the metal buckle 7 are exactly the same as those of the card slot 6, so that the metal buckle 7 can be perfectly embedded in the card slot 6.

[0026] Specifically, since the head size of the slot 6 is smaller than the bottom size, the metal buckle 7 can be inserted directly from the top to the bottom of the slot 6. When installing the two types of items, some glue needs to be added to make the connection between the two types more secure. The thickness of the metal buckle 7 is one-third of the thickness of the chain tooth and is set in the middle of the chain tooth, so that the contact force is uniform when the chain tooth meshes.

[0027] Please see Figure 4 The chain tooth head 4 is a ball head, and the chain tooth waist 3 is an arc with the same radius as the ball head of the chain tooth head 4. The two chain tooth waists 3 can wrap around the chain tooth head 4.

[0028] Specifically, when the zipper is closed, the two chain teeth waists 3 wrap around the chain tooth heads 4, resulting in a large and uniform contact area. This avoids localized stress and wear, and prevents chain tooth deformation even after prolonged and repeated use, thus preventing jamming later. The ball-shaped chain tooth head 4 also makes smooth contact with the curved chain tooth waists 3 when closed. The two chain tooth waists 3 can wrap around the chain tooth head 4, which improves the sealing effect of the zipper after closure.

[0029] Please see Figure 1 and Figure 4The two sides of the bottom 2 of the chain tooth extend outward along the arc of the waist 3 of the chain tooth. The bottom 2 of the chain tooth has the largest width, which makes it very strong and not easy to break. A portion is symmetrically cut off on both sides of the root 1 of the chain tooth. The length of the cut-off portion is greater than that of the connecting groove 5. The chain tooth is connected to the chain belt through the connecting groove 5. When the chain tooth is connected to the chain belt, the cut-off portion forms a rectangular groove between the two chain teeth. This groove allows two closely spaced chain teeth to turn.

[0030] Specifically, when the chain is pulled apart, the two chain links will open an angle of about 60°. If there is no gap at the connection between the chain teeth, the chain cannot bend. Therefore, the design of cutting off a part can ensure the width of the bottom 2 of the chain teeth without affecting the bending of the chain, thus making the chain teeth stronger.

[0031] When in use, the chain tooth is connected to the chain belt through the connecting groove 5. The installation spacing of the chain teeth is such that the two chain tooth waists 3 just wrap around the chain tooth head 4. When the chain is pulled, the chain teeth on the two chain belts are guided to close by the ball head chain tooth head 4. When closed, the tangent arc surfaces can reduce friction. When closed, each arc surface can fit together well to increase the contact area, thereby reducing the average pressure on the contact surface and avoiding excessive wear caused by excessive local pressure. After the zipper is pulled, the two chain tooth waists 3 can wrap around the chain tooth head 4, which can improve the sealing effect of the zipper after closure. During the pulling process, the chain tooth head 4 and the metal buckle 7 come into contact at the same time. The plastic chain tooth head 4 can make the pulling smooth, and the high hardness of the metal buckle 7 can greatly reduce wear, thus making the zipper both smooth and wear-resistant, and thus greatly increasing its service life. The chain tooth can be integrally injection molded by the metal insert injection molding process, or the plastic chain tooth can be injection molded first and then the metal buckle 7 can be embedded into the slot 6.

[0032] In summary, the fatigue-resistant and wear-resistant zipper tooth structure features an arc-shaped tooth waist 3 with the same radius as the ball head of the tooth 4. This allows the two tooth waists 3 to effectively enclose the tooth head 4 when the zipper is closed, increasing the contact area and reducing pressure to achieve wear resistance. By embedding a metal buckle 7 into the plastic tooth head 4, the tooth combines the smoothness of a plastic zipper with the hardness of a metal chain, making the zipper both smooth and wear-resistant during use. Furthermore, the tooth base 2 extends outward along the arc of the tooth waist 3 on both sides, increasing its width and thus making it very strong and less prone to breakage.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A fatigue-resistant and wear-resistant zipper tooth structure, comprising a tooth root (1), a tooth base (2), a tooth waist (3), and a tooth head (4), characterized in that: A connecting groove (5) is provided in the middle of the chain tooth root (1), and a slot (6) is provided around the chain tooth waist (3) and chain tooth head (4). A metal buckle (7) is fixedly installed inside the slot (6).

2. The zipper tooth profile fatigue-resistant and wear-resistant structure according to claim 1, characterized in that: The metal buckle (7) is made of high-strength aluminum alloy with anodized surface, which has high strength and good surface wear resistance. The chain teeth are made of nylon or polytetrafluoroethylene.

3. The zipper tooth profile fatigue-resistant and wear-resistant structure according to claim 1, characterized in that: The inner and outer contours of the card slot (6) are such that the head size is smaller than the bottom size. The shape, size and thickness of the metal buckle (7) are exactly the same as those of the card slot (6), so that the metal buckle (7) can be perfectly embedded in the card slot (6).

4. The zipper tooth profile fatigue-resistant and wear-resistant structure according to claim 1, characterized in that: The chain tooth head (4) is a ball head, and the chain tooth waist (3) is an arc with the same radius as the ball head of the chain tooth head (4). The two chain tooth waists (3) can wrap around the chain tooth head (4).

5. The zipper tooth profile fatigue-resistant and wear-resistant structure according to claim 1, characterized in that: A portion of the chain tooth root (1) is symmetrically cut off on both sides. The length of the cut-off portion is greater than that of the connecting groove (5). The chain tooth is connected to the chain belt through the connecting groove (5). When the chain tooth is connected to the chain belt, the cut-off portion forms a rectangular groove between the two chain teeth. This groove allows two closely spaced chain teeth to turn.

6. The zipper tooth profile fatigue-resistant and wear-resistant structure according to claim 1, characterized in that: The two sides of the bottom of the chain tooth (2) extend outward along the arc of the waist of the chain tooth (3). The bottom of the chain tooth (2) has the largest width, which makes it very strong and not easy to break.

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