A ball chain and zipper

Abstract

The utility model relates to zip fastener technical field, especially a kind of spherical chain tooth and zipper, including spherical mounting seat, tooth part and the connecting portion of both, the recess is provided with along first direction in tooth part, the both ends of tooth part and the connecting portion parallel with first direction are ellipsoidal structure, the mounting seat and tooth part are all in first direction and protrude from connecting portion, the both sides of mounting seat along first direction are provided with boss.The utility model's chain tooth's occlusal surface forms three spherical structure, to improve its wear resistance, occlusal force and sealing property.

Description

Technical Field

[0001] This utility model relates to the field of zipper technology, and in particular to a spherical zipper tooth and a zipper. Background Technology

[0002] Zippers, as common connectors in daily life, are widely used in clothing, bags, tents, and other fields. Traditional zipper teeth are mostly rectangular or trapezoidal, which have problems such as loose engagement and easy loosening. In recent years, resin zippers have received widespread attention due to their lightweight, corrosion resistance, and ease of processing. However, the design of traditional resin zipper teeth still has shortcomings, such as the need to improve wear resistance, engagement force, and sealing performance. Utility Model Content

[0003] This invention solves the problems in related technologies by proposing a spherical chain tooth and zipper, wherein the interlocking surface of the chain tooth forms a three-spherical structure, thereby improving its wear resistance, interlocking force and sealing performance.

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: a spherical chain tooth, including a spherical mounting base, a tooth portion, and a connecting portion connecting the two. The tooth portion is provided with a groove along a first direction. Both the tooth portion and the connecting portion have ellipsoidal structures at their ends parallel to the first direction. The mounting base and the tooth portion both protrude from the connecting portion in the first direction. The mounting base is provided with bosses on both sides along the first direction.

[0005] As a preferred embodiment, the end of the mounting base away from the connecting part is provided with a fabric strip slit along the first direction, and the fabric strip slit communicates with the fabric strip hole.

[0006] As a preferred embodiment, the end of the mounting base away from the connecting portion is a plane.

[0007] As a preferred embodiment, the boss is located above the fabric tape hole, and the boss is right-angled with rounded corners.

[0008] Another aspect of this utility model is to provide a zipper including the spherical chain teeth as described above.

[0009] Compared with the prior art, the beneficial effects of this utility model are: 1. Improved wear resistance: The three-spherical structure allows the chain teeth to distribute stress during engagement, reducing wear and thus extending service life; 2. Enhanced biting force: The three-spherical structure increases the contact area of ​​the biting surface, improving the biting force and making the zipper more secure and less prone to loosening; 3. Improved sealing: The three-spherical teeth structure interlocks tightly to form an effective sealing barrier, preventing moisture, dust and other impurities from entering the zipper. It is suitable for occasions that require waterproofing and dustproofing. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is the front view of this utility model; Figure 3 This is a side view of the present invention; Figure 4 This is a front view of the present invention installed on a fabric tape; Figure 5 This is a side view of the present invention installed on a fabric tape.

[0011] In the picture: 1. Spherical chain tooth; 11. Mounting base; 111. Fabric strip seam; 112. Fabric strip hole; 113. Boss; 12. Tooth part; 121. Groove; 122. First ellipsoidal part; 13. Connecting part; 131. Second ellipsoidal part; 2. Fabric strip. Detailed Implementation

[0012] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0013] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0014] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0015] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0016] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0017] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0018] Example 1

[0019] like Figures 1 to 3 As shown, a spherical chain tooth 1 includes a spherical mounting base 11, a tooth portion 12, and a connecting portion 13 connecting the two. The tooth portion 12 is provided with an arc-shaped groove 121 along a first direction. Both ends of the tooth portion 12 and the connecting portion 13 parallel to the first direction are ellipsoidal structures, namely, a first ellipsoidal portion 122 at both ends of the tooth portion 12 and a second ellipsoidal portion 131 at both ends of the connecting portion 13. Both the mounting base 11 and the tooth portion 12 protrude from the connecting portion 13 in the first direction. The mounting base 11 is provided with bosses 113 on both sides along the first direction. In this way, a receiving groove is formed between the bosses 113 and the tooth portion 12. When the spherical chain teeth 1 on both sides are engaged, the tooth portion 12... The groove 121 is engaged with its adjacent protrusion 113, and the two ends of the tooth portion 12 are also located in the receiving grooves formed on both sides. In this way, the biting surface of the chain tooth forms a three-spherical structure, that is, the biting surface of each chain tooth is composed of three interconnected spherical protrusions, forming a unique biting surface. This three-spherical tooth structure allows the chain tooth to distribute stress during biting, reduce wear, extend service life, increase the contact area of ​​the biting surface, improve biting force, and make the zipper more secure and less prone to loosening. The three-spherical tooth structure bites tightly, forming an effective sealing barrier, which can prevent moisture, dust and other impurities from entering the zipper, making it suitable for occasions that require waterproofing and dustproofing.

[0020] In one embodiment, the mounting base 11 has a fabric strip slit 111 at one end away from the connecting part 13 along a first direction. The fabric strip slit 111 communicates with the fabric strip hole 112 to facilitate installation with the fabric strip 2.

[0021] In one embodiment, the end of the mounting base 11 away from the connecting portion 13 is flat, thereby facilitating the installation of the chain teeth.

[0022] In one embodiment, the boss 113 is located above the fabric tape hole 112. The boss 113 is right-angled and its corners are rounded, which can better engage with the groove 121.

[0023] Example 2

[0024] A zipper, including the spherical chain teeth 1 of embodiment 1, such as Figure 4 and 5 As shown, the spherical chain teeth 1 in Example 1 are fixed to the fabric tape 2 through the fabric tape seam 111. When the zipper is pulled up, the spherical chain teeth 1 on both sides mesh, and the groove 121 of the tooth part 12 is stuck on its adjacent boss 113. The two ends of the tooth part 12 are also located in the receiving groove formed on both sides, thus forming a three-spherical interlocking structure.

[0025] The above are preferred embodiments of this utility model. Those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments described above. Any obvious improvements, substitutions or modifications made by those skilled in the art based on this utility model shall fall within the protection scope of this utility model.

Claims

1. A spherical chain tooth (1), characterized in that: It includes a spherical mounting base (11), a toothed portion (12), and a connecting portion (13) connecting the two. The toothed portion (12) is provided with a groove (121) along a first direction. Both ends of the toothed portion (12) and the connecting portion (13) parallel to the first direction are ellipsoidal structures. The mounting base (11) and the toothed portion (12) both protrude from the connecting portion (13) in the first direction. The mounting base (11) is provided with bosses (113) on both sides along the first direction.

2. The spherical chain tooth according to claim 1, characterized in that: The mounting base (11) has a fabric strip slit (111) at one end away from the connecting part (13) along the first direction, and the fabric strip slit (111) communicates with the fabric strip hole (112).

3. The spherical chain tooth according to claim 2, characterized in that: The end of the mounting base (11) away from the connecting part (13) is a plane.

4. The spherical chain tooth according to claim 2, characterized in that: The boss (113) is located above the fabric tape hole (112), and the boss (113) is right-angled with rounded corners.

5. A zipper, characterized in that: Includes the spherical chain teeth (1) as described in any one of claims 1-4.

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