Chain assembly and slide fastener

Abstract

The utility model provides a chain assembly and a zipper, the chain assembly comprises a first chain and a second chain, the first chain comprises a plurality of first teeth, each first tooth is provided with a first space and an opening communicated with the first space, and the first spaces of the first teeth are arranged to form a channel; the second chain comprises a plurality of second teeth, and the thickness of the second teeth is larger than the width of the opening. The first chain and the second chain can be combined with each other, in the chain combining state, the second chain is arranged in the opening in a penetrating mode, and the multiple second teeth are located in the channel and can slide relative to the channel. The first chain and the second chain can move or adjust positions in the length direction of the channel, so that the two sides of the zipper can move or adjust relatively, and the more flexible design requirement can be met.

Description

Technical Field

[0001] This application belongs to the field of zippers, and more specifically, relates to a chain component and a zipper. Background Technology

[0002] Zippers are a common accessory used in clothing and bags. Some garments are designed as one-piece sets, which are usually connected directly with ordinary zippers. Ordinary zippers are basically fixed, and when connected in this way, the two sides of the zipper cannot move relative to each other. Utility Model Content

[0003] The purpose of this application is to provide a chain assembly and a zipper to solve the technical problem in the prior art that the two sides of the zipper cannot move relative to each other.

[0004] To achieve the above objectives, the technical solution adopted in this application is: to provide a chain assembly, the chain assembly comprising:

[0005] A first chain; the first chain includes a plurality of first teeth, each first tooth having a first space and an opening communicating with the first space, the first spaces of the plurality of first teeth being arranged to form a channel;

[0006] A second chain; the second chain includes a plurality of second teeth, the thickness of which is greater than the width of the opening;

[0007] The first chain and the second chain can be chained together. In the chained state, the second chain passes through the opening, and a plurality of second teeth are located in the channel and can slide relative to the channel.

[0008] Optionally, the first tooth includes a clamping portion, the first space is disposed within the clamping portion, the clamping portion includes a limiting portion disposed on the first chain engagement side, and the opening is disposed on one side of the limiting portion along the thickness direction of the first tooth.

[0009] Optionally, the clamping part further includes a first connecting part, a second connecting part, and a third connecting part, wherein the second connecting part is connected to one side of the first connecting part and the second connecting part is connected to the other side of the first connecting part;

[0010] The limiting part is connected to the side of the second connecting part away from the first connecting part and extends toward the third connecting part;

[0011] The first connecting portion, the second connecting portion, the third connecting portion, and the limiting portion form the first space, and the opening is located between the third connecting portion and the limiting portion.

[0012] Optionally, one side of the second chain in the thickness direction is a protruding side, and the other side of the second chain opposite to the protruding side is a flat side, and the second tooth is located on the protruding side to form a protruding structure;

[0013] In the closed state, the protruding side and the limiting part are located on the same side of the chain assembly, and the flat side and the opening are located on the same side of the chain assembly.

[0014] Optionally, a waterproof membrane is provided on the side of the flat side opposite to the convex side.

[0015] Optionally, the chain assembly further includes a stop member detachably connected to a first tooth at at least one end of the second chain to restrict the sliding of the second tooth within the channel.

[0016] Optionally, the first tooth includes a clamping portion, and the first space is disposed within the clamping portion;

[0017] The stop includes a frame-shaped member having a second space, the frame-shaped member including a first side bar located on one side of the second space, the lateral dimension of the first side bar being greater than the width of the opening, and the first side bar being compressible through the opening;

[0018] When the stop member is connected to the first tooth, the first side rod is located in the first space, and the frame member is sleeved on the side member of the clamping part through the second space.

[0019] Optionally, the side member includes a second connecting portion and a limiting portion, the second connecting portion being located on one side of the clamping portion, and the limiting portion being connected to the side of the second connecting portion near the first chain engagement side;

[0020] There is a first enlarged portion between the second connecting portion and the limiting portion. The size of the first enlarged portion is larger than the width of the second space, and the first enlarged portion can be squeezed through the second space.

[0021] When the stop member is connected to the first tooth, the frame member is located on the side of the first enlarged portion that is away from the limiting portion.

[0022] Optionally, the clamping part further includes a first connecting part, a second connecting part connected to one side of the first connecting part, and a second enlarged part provided between the first connecting part and the second connecting part. The size of the second enlarged part is larger than the width of the second space, and the second enlarged part can be squeezed through the second space.

[0023] When the stop member is connected to the first tooth, the frame member is located on the side of the second enlarged portion that is away from the second connecting portion.

[0024] This application discloses a zipper that includes the chain assembly described above.

[0025] The beneficial effects of the chain assembly and zipper provided in this application are as follows: Compared with the prior art, in the chain assembly of the embodiments of this application, the first chain includes a plurality of first teeth, each first tooth having a first space and an opening communicating with the first space, and the first spaces of the plurality of first teeth are arranged to form a channel; the second chain includes a plurality of second teeth, and in the closed state, the second chain passes through the opening, the plurality of second teeth are located in the channel, and can slide relative to the channel, so that the first chain and the second chain can move or adjust their positions along the length direction of the channel, thereby allowing the two sides of the zipper to move or adjust relative to each other, which can meet more flexible design requirements. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the chain assembly in an embodiment of this application;

[0028] Figure 2 This is a three-dimensional schematic diagram of the first tooth in an embodiment of this application;

[0029] Figure 3 This is a planar schematic diagram of the first tooth in an embodiment of this application;

[0030] Figure 4 This is a lateral view of the second chain in an embodiment of this application;

[0031] Figure 5 This is a schematic diagram of the first and second chains joining together in an embodiment of this application;

[0032] Figure 6 This is a schematic diagram of the stop element in the embodiments of this application;

[0033] Figure 7 This is a schematic diagram of the installation of the stop in the embodiments of this application;

[0034] Figures 8a to 8e This is a schematic diagram illustrating the installation process of the stop in the embodiments of this application.

[0035] The following are the labeling elements in the figure:

[0036] First chain 1, first tooth 11, first connecting part 111, second connecting part 112, third connecting part 113, limiting part 114; first space 115, opening 116, first enlarged part 117, second enlarged part 118, first cloth belt 12; second chain 2, second tooth 21, second cloth belt 22, end guide 23, protruding side 24, flat side 25, stop 3, frame-shaped part 31, first side rod 311, second space 312. Detailed Implementation

[0037] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0038] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0039] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., 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 application and simplifying the description, and 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. Therefore, they should not be construed as limitations on this application.

[0040] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0041] Please see Figure 1 , Figure 2 and Figure 5 The chain assembly provided in the embodiments of this application will now be described. The chain assembly includes:

[0042] First chain 1; the first chain 1 includes a plurality of first teeth 11, each first tooth 11 having a first space 115 and an opening 116 communicating with the first space 115, the first spaces 115 of the plurality of first teeth 11 are arranged to form a channel;

[0043] Second chain 2; the second chain 2 includes a plurality of second teeth 21, the thickness of the second teeth 21 being greater than the width of the opening 116;

[0044] The first chain 1 and the second chain 2 can be chained together. In the chained state, the second chain 2 passes through the opening 116, and a plurality of second teeth 21 are located in the channel and can slide relative to the channel.

[0045] The chain assembly is a crucial component of the zipper. In this embodiment, the chain assembly includes a first chain 1 and a second chain 2. The first chain 1 and the second chain 2 engage to close the zipper, and disengage to open it. Traditional zippers have interlocking chains on both sides, preventing relative movement and resulting in minimal space for movement at the connection points, thus lacking flexibility. For example, adjusting the alignment of the two sides of the zipper is difficult.

[0046] In the chain assembly of this embodiment, the first chain 1 is mainly composed of multiple first teeth 11, which are typically connected to a first fabric belt 12 for arrangement. Each first tooth 11 is designed with a first space 115, which is the internal space of the first tooth 11 and can accommodate the second teeth 21 of the second chain 2. The first space 115 is connected to the outside through an opening 116, which allows the portion of the second chain 2 connected to the second teeth 21 to pass through, so that the second teeth 21 can be connected to the second chain 2 even when they are in the first space 115. When multiple first teeth 11 are arranged together, their first spaces 115 form a continuous channel, which can accommodate the second teeth 21 and allow the second teeth 21 to slide within this continuous channel. The second chain 2 is also mainly composed of multiple second teeth 21, which can be ordinary teeth, and the multiple second teeth 21 are typically connected to a second fabric belt 22 for arrangement. The thickness of the second tooth 21 is greater than the width of the opening 116, so that the second tooth 21 will not detach from the opening 116 after entering the first space 115 of the first tooth 11.

[0047] The first chain 1 and the second chain 2 can be chained together. In the chained state, the second chain 2 passes through the opening 116. Specifically, the portion passing through the opening 116 can be the outward extension of the second tooth 21, or it can be the second fabric tape 22 passing through the opening 116, so that even when the second tooth 21 is in the first space 115, it can still be connected to the second chain 2. Multiple second teeth 21 will be located within this channel, and they can slide relative to the channel. This means that the second chain 2 has a certain degree of freedom within the channel, and can move or adjust its position along the length of the channel, thereby allowing the two sides of the zipper to move or adjust relative to each other, achieving more flexible design requirements. The chain assembly of this embodiment can be applied to situations where the alignment of the two sides of the zipper needs to be adjusted, or where the two sides of the zipper need to move along the length of the zipper.

[0048] The first tooth 11 and the second tooth 21 can be made of common zipper materials such as metal, nylon, or plastic. In some embodiments of this application, the first chain 1 can be made of plastic steel, while the second chain 2 can be made of nylon, thus ensuring the smoothness and wear resistance of the relative sliding of the first tooth 11 and the second tooth 21.

[0049] Please see Figure 2 In some embodiments of this application, the first tooth 11 includes a clamping portion, the first space 115 is disposed in the clamping portion, the clamping portion includes a limiting portion 114 disposed on the chain-joining side of the first chain 1, and the opening 116 is disposed on one side of the limiting portion 114 along the thickness direction of the first tooth 11.

[0050] Because the first space 115 of the first chain 1 has an opening 116, under a large pulling force, there is a risk that the second tooth 21 may detach from the first tooth 11 through the opening 116. To address this, in this embodiment, the first tooth 11 includes a clamping portion, which is the main structural part of the first tooth 11. The first space 115 is formed within the clamping portion. When the second tooth 21 is located within the first space 115, the clamping portion can clamp it. A limiting portion 114 is specifically provided on the clamping portion, located on the closing side of the first chain 1. The closing side is the side of the first chain 1 closest to the second chain 2 when the chain is closed. The limiting portion 114 can more effectively confine the second tooth 21 within the first space 115. The opening 116 is located on one side of the limiting portion 114 along the thickness direction of the first tooth 11, thereby allowing the limiting portion 114 to have a larger volume.

[0051] When the first chain 1 and the second chain 2 are subjected to a separation force, the second tooth 21 will be blocked by the limiting part 114 and will be difficult to disengage from the opening 116. This forms a larger limiting part 114 with a larger interaction area with the second tooth 21, resulting in a better blocking effect on the second tooth 21. Compared to setting the opening 116 in the middle of the first tooth 11, this embodiment can more effectively reduce the possibility of the second tooth 21 disengaging from the first tooth 11, thereby ensuring the stability of the connection between the first chain 1 and the second chain 2.

[0052] Please see Figure 2 In some embodiments of this application, the clamping portion further includes a first connecting portion 111, a second connecting portion 112, and a third connecting portion 113. The second connecting portion 112 is connected to one side of the first connecting portion 111, and the second connecting portion 112 is connected to the other side of the first connecting portion 111. The limiting portion 114 is connected to the side of the second connecting portion 112 away from the first connecting portion 111 and extends toward the third connecting portion 113. The first connecting portion 111, the second connecting portion 112, the third connecting portion 113, and the limiting portion 114 form the first space 115, and the opening 116 is located between the third connecting portion 113 and the limiting portion 114.

[0053] The clamping part can take various shapes. In this embodiment, in addition to the limiting part 114, the clamping part includes a first connecting part 111, a second connecting part 112, and a third connecting part 113. The first connecting part 111 is located on the side of the first tooth 11 away from the clasping side and can be connected to the fabric tape, forming the basis of the clamping part. The second connecting part 112 is connected to one side of the first connecting part 111 and is located on one side of the first space 115; the third connecting part 113 is connected to the other side of the first connecting part 111 and is located on the other side of the first space 115. The second connecting part 112 and the third connecting part 113 respectively form the two side structures of the clamping part. The limiting part 114 is connected to the side of the second connecting part 112 away from the first connecting part 111, that is, the clasping side of the first tooth 11. The limiting part 114 extends towards the third connecting part 113, thereby reducing the width of the opening 116 on the clasping side of the first tooth 11.

[0054] The first connecting part 111, the second connecting part 112, the third connecting part 113, and the limiting part 114 are located around the first space 115, thus forming the first space 115. The gap between the third connecting part 113 and the limiting part 114 forms an opening 116, allowing the first tooth 11 to connect with the outside when the zipper is closed, ensuring the zipper's closure. The first connecting part 111, the second connecting part 112, the third connecting part 113, and the limiting part 114 can typically be manufactured as a single piece, such as through injection molding, thereby improving processing efficiency and reducing processing difficulty.

[0055] Please see Figure 3 In some embodiments of this application, the opening 116 of the first space 115 can be a trumpet-shaped structure that gradually narrows from the outside to the inside. This makes it easy to enter the opening 116 but difficult to exit, thereby ensuring the smoothness of the chain and the stability after the chain is closed.

[0056] Please see Figure 4 and Figure 5 In some embodiments of this application, one side of the second chain 2 in the thickness direction is a protruding side 24, and the other side of the second chain 2 opposite to the protruding side 24 is a flat side 25. The second tooth 21 is located on the protruding side to form a protruding structure. In the closed state, the protruding side 24 and the limiting part 114 are located on the same side of the chain assembly, and the flat side 25 and the opening 116 are located on the same side of the chain assembly.

[0057] In the above embodiment, placing the opening 116 on one side of the first tooth 11 in the thickness direction can improve the stability of the connection between the first chain 1 and the second chain 2 after they are joined. To complement this structure, in this embodiment, the second chain 2 has a protruding side 24 on one side in the thickness direction, and a flat side 25 on the other side opposite to the protruding side 24. The second tooth 21 is located on the protruding side, forming a protruding structure. That is, the protrusion of the second chain 2 is formed because the second tooth 21 is located on this side.

[0058] When the first chain 1 and the second chain 2 are in the engaged state, the second tooth 21 enters the first space 115 of the first tooth 11. The protruding side 24 and the limiting part 114 of the first tooth 11 are located on the same side of the chain assembly. The second tooth 21 can better contact and engage with the limiting part 114 on this side, thereby preventing the second tooth 21 from disengaging from the opening 116 when sliding in the first space 115. The flat side 25 of the second tooth 21 and the opening 116 of the first tooth 11 are located on the same side of the chain assembly. This means that the flat side 25 faces the side where the opening 116 is located, so that as much of the second tooth 21 as possible can be offset to the side with the limiting part 114. In this embodiment, the cooperation between the protruding side 24 and the limiting part 114 can be used to ensure that the second tooth 21 can be stably kept in the first space 115 in the chain-closed state and will not easily fall off. This structural design fully considers the practicality and stability of the chain assembly, so that the first chain 1 and the second chain 2 can slide against each other in the chain-closed state, and can also ensure that the two are tightly connected together.

[0059] In some embodiments of this application, a waterproof membrane is provided on the side of the flat side 25 opposite to the protruding side 24. The position where the flat side 25, opposite to the protruding side 24, mates with the first tooth 11 is the position with the longest contact line and the most stable contact. Providing a waterproof membrane on the side of the flat side 25 opposite to the protruding side 24 reduces the gap between the first chain 1 and the second chain 2 after they are joined, achieving a simple water-repellent effect. In addition, the waterproof membrane itself prevents the penetration of water or other liquids, thus improving the waterproof effect. The waterproof membrane can be made of materials such as waterproof plastic, rubber, or silicone, and can also have a certain degree of elasticity and wear resistance to adapt to various deformations and frictions of the chain assembly during use.

[0060] Please see Figure 1 In some embodiments of this application, the chain assembly further includes a stop 3, which is detachably connected to a first tooth 11 at at least one end of the second chain 2 to restrict the sliding of the second tooth 21 within the channel.

[0061] The chain assembly includes one or more stoppers 3, which are detachably connected to the first tooth 11 at at least one end of the second chain 2. This means they can be flexibly installed or removed, giving the chain assembly greater flexibility and versatility, thereby limiting the second chain 2 at different positions on the first chain 1. The stoppers 3 can be located at one end of the second chain 2 to restrict the sliding of the second chain 2 only at that end, or they can be located at both ends of the second chain 2 to restrict the sliding of the second chain 2 at both ends.

[0062] When the stop 3 is installed on the first tooth 11 at one end of the second chain 2, it can block the second chain 2, thereby limiting the slippage of the second chain 2. The design of the stop 3 can include various shapes and structures, as long as it can be stably connected to the first tooth 11 and block the second chain 2.

[0063] The function of the stop 3 is to restrict the sliding of the second tooth 21 within the channel. On the one hand, it can prevent the second tooth 21 from sliding out of the channel, causing the connection between the first chain 1 and the second chain 2 to become unstable. On the other hand, it can limit the relative sliding distance between the first chain 1 and the second chain 2 to match the requirements.

[0064] Please see Figure 1 In some embodiments of this application, end guides 23 may be provided at both ends of the second teeth 21 of the second chain 2. The end guides 23 are adapted to the channel. On the one hand, they can guide the sliding of the second chain 2 within the first chain 1. On the other hand, the stop 3 can cooperate with the end guides 23 to restrict the sliding of the second chain 2, so that the stop 3 will not damage the second teeth 21.

[0065] Please see Figure 6 and Figure 7 In some embodiments of this application, the first tooth 11 includes a clamping portion, and the first space 115 is disposed within the clamping portion; the stop member 3 includes a frame member 31 having a second space 312, the frame member 31 including a first side rod 311 located on one side of the second space 312, the lateral dimension of the first side rod 311 being larger than the width of the opening 116, and the first side rod 311 being compressible through the opening 116; when the stop member 3 is connected to the first tooth 11, the first side rod 311 is located within the first space 115, and the frame member 31 is sleeved on the side member of the clamping portion through the second space 312.

[0066] The design of the stop 3 can include various shapes and structures. In this embodiment, the stop 3 adopts a frame-shaped member 31 with a second space 312. A first side rod 311 is provided on one side of the frame-shaped member 31. The lateral dimension of this side rod is larger than the width of the opening 116 on the first tooth 11. Importantly, although the lateral dimension of the first side rod 311 is large, it can still be squeezed through the opening 116. This means that the size of the first side rod 311 is slightly larger than the width of the opening 116. Under normal conditions, the first side rod 311 will be stuck in the opening 116, but it can be squeezed through the first opening 116. This is mainly due to the fact that the first tooth 11 itself has a certain degree of elasticity. The first tooth 11 is made of plastic steel, which has a good elastic effect.

[0067] With the stop 3 connected to the first tooth 11, the first side rod 311 is placed within the first space 115. The first space 115 forms the channel for the second chain 2 to slide. Therefore, the first side rod 311, placed within the first space 115, can block the second chain 2, thereby limiting its sliding. Simultaneously, the frame member 31, through its second space 312, is fitted onto the side member of the clamping part, forming a tight connection that prevents the second chain 2 from causing the stop 3 to detach. This connection method not only ensures that the stop 3 can be firmly fixed to the first tooth 11, but also effectively limits the sliding range of the second tooth 21 through the first side rod 311. Any member on either side of the clamping part can serve as a side member in this embodiment for the frame member 31 to be fitted and installed.

[0068] Although a tight connection is formed between the stop 3 and the first tooth 11, this connection is detachable. For example... Figure 7 As shown, during installation, simply forcefully push the first side rod 311 into the first space 115 through the opening 116, and then fit the frame member 31 onto one side of the clamping part. During disassembly, simply remove the frame member 31 from the clamping part, and then forcefully pull the first side rod 311 out of the opening 116. It is very convenient and quick to use.

[0069] Please see Figure 3 and Figure 7 In some embodiments of this application, the side member includes a second connecting portion 112 and a limiting portion 114. The second connecting portion 112 is located on one side of the clamping portion, and the limiting portion 114 is connected to the side of the second connecting portion 112 near the chain-joining side of the first chain 1. A first enlarged portion 117 is provided between the second connecting portion 112 and the limiting portion 114. The size of the first enlarged portion 117 is larger than the width of the second space 312, and the first enlarged portion 117 can be squeezed through the second space 312. When the stop member 3 is connected to the first tooth 11, the frame member 31 is located on the side of the first enlarged portion 117 away from the limiting portion 114.

[0070] In this embodiment, a second connecting portion 112 and a limiting portion 114 are provided on one side of the clamping portion. The second connecting portion 112 is located on one side of the clamping portion, and the limiting portion 114 is connected to the side of the second connecting portion 112 near the engaging side of the first chain 1. The second connecting portion 112 and the limiting portion 114 serve as side members for the frame-type stop member 3 to be fitted. The frame-type member 31 can be fitted onto the second connecting portion 112 or the limiting portion 114, thereby achieving a stable connection with the first tooth 11.

[0071] Between the second connecting portion 112 and the limiting portion 114, there exists a first enlarged portion 117. The size of the first enlarged portion 117 is larger than the width of the second space 312 in the stop member 3, which means that under normal circumstances, the first enlarged portion 117 cannot pass directly through the second space 312. However, the first enlarged portion 117 can be squeezed through the second space 312, which is very important when installing or removing the stop member 3. This means that the difference between the first enlarged portion 117 and the second space 312 cannot be too large; their sizes must be similar to allow the first enlarged portion 117 to pass through the second space 312 by compression.

[0072] With the stop 3 connected to the first tooth 11, the frame member 31 is located on the side of the first enlarged portion 117 away from the limiting portion 114. In other words, at this time, the frame member 31 has passed through the first enlarged portion 117 and reached the inside of the first enlarged portion 117. Since the first enlarged portion 117 cannot pass directly through the second space 312 under normal circumstances, the first enlarged portion 117 can lock the frame member 31 on the side of the first enlarged portion 117 away from the limiting portion 114, thereby preventing the frame member 31 from detaching from the limiting portion 114.

[0073] When installing the frame member 31, its first side rod 311 can be squeezed into the first space 115 of the clamping part from the opening 116. Then, the frame member 31 is flipped over and inserted into the limiting part 114 through the second space 312 inside. Then, force is applied to make it pass through the first enlarged part 117 and reach the second connecting part 112. At this time, the first enlarged part 117 can limit the frame member 31 and prevent it from detaching from the side member of the clamping part. When disassembling the frame member 31, as long as a certain force is applied, the frame member 31 can pass through the first enlarged part 117 and reach the limiting part 114. Then, it can be moved out from the end of the limiting part 114, and the first side rod 311 can be taken out from the opening 116 by force to complete the disassembly.

[0074] Please see Figure 3 and Figure 7 In some embodiments of this application, the clamping part further includes a first connecting part 111, and a second connecting part 112 is connected to one side of the first connecting part 111. A second enlarged part 118 is provided between the first connecting part 111 and the second connecting part 112. The size of the second enlarged part 118 is larger than the width of the second space 312, and the second enlarged part 118 can be squeezed through the second space 312. When the stop member 3 is connected to the first tooth 11, the frame member 31 is located on the side of the second enlarged part 118 away from the second connecting part 112.

[0075] Although the first enlarged portion 117 can prevent the frame-shaped stop 3 from detaching, it cannot prevent wobbling. In this embodiment, the clamping portion now includes a first connecting portion 111, a second connecting portion 112, and a second enlarged portion 118 located between them. It should be noted that the portion of the first connecting portion 111 near the second connecting portion 112 in this embodiment, since it is located on one side of the clamping member, should also be understood as a side member. The second enlarged portion 118 is a special portion located between the first connecting portion 111 and the second connecting portion 112, and its size is larger than the width of the second space 312 in the stop 3. This prevents it from directly passing through the second space 312 of the stop 3, but under the active application of a large force, the second enlarged portion 118 can pass through the second space 312.

[0076] like Figure 7 As shown, with the frame-shaped stop 3 connected to the first tooth 11, the frame-shaped member 31 is located on the side of the second enlarged portion 118 away from the second connecting portion 112. The second enlarged portion 118 thus restricts the frame-shaped member 31 to a position close to the first connecting portion 111, preventing significant swaying of the frame-shaped member 31. By strictly controlling the first connecting portion 111 and the second enlarged portion 118, the frame-shaped member 31 can be kept completely still. Furthermore, the first enlarged portion 117 and the second enlarged portion 118 can cooperate to form double protection for the stop 3, effectively preventing the frame-shaped member 31 from detaching from the side of the clamping portion.

[0077] Please see Figure 4 , Figure 8a and Figure 8b When installing the stopper 3, first insert its first side rod 311 into the first space 115 through the opening 116, and then... Figure 8c As shown, flip the stop 3 so that it fits into one side of the clamping part, and forcefully slide it over the first enlarged part 117, then... Figure 8d As shown, apply force to pass through the second enlarged part 118, and finally... Figure 8e As shown, it is held in place by the second enlarged part 118, maintaining a stable position.

[0078] The two sides of the frame member 31 can be bent so that when it is limited by the second enlarged part 118, it can fit more closely to the first tooth 11, thereby reducing the possibility of it being dislodged from the second enlarged part 118 by external force.

[0079] Based on the above-described chain assembly, this application also provides a zipper that includes the aforementioned chain assembly. In the chain assembly of this embodiment, the first chain 1 is mainly composed of a plurality of first teeth 11, which are typically connected to a first fabric tape 12 for arrangement. Each first tooth 11 is designed with a first space 115, which is the internal space of the first tooth 11 and can accommodate the second tooth 21 of the second chain 2. The first space 115 is connected to the outside through an opening 116, which allows the portion of the second chain 2 connected to the second tooth 21 to pass through, so that the second tooth 21 can be connected to the second chain 2 even when it is in the first space 115. When the plurality of first teeth 11 are arranged together, their first spaces 115 form a continuous channel, which can accommodate the second tooth 21 and allow the second tooth 21 to slide within this continuous channel. The second chain 2 is also mainly composed of multiple second teeth 21. The second teeth 21 can be ordinary teeth, and multiple second teeth 21 can usually be connected to the second fabric belt 22 to achieve an arrangement. The thickness of the second teeth 21 is greater than the width of the opening 116, so that the second teeth 21 will not detach from the opening 116 after entering the first space 115 of the first teeth 11.

[0080] The first chain 1 and the second chain 2 can be chained together. In the chained state, the second chain 2 passes through the opening 116. Specifically, the portion passing through the opening 116 can be the outward extension of the second tooth 21, or the second fabric tape 22 passing through the opening 116, so that even when the second tooth 21 is in the first space 115, it can still be connected to the second chain 2. Multiple second teeth 21 will be located within this channel, and they can slide relative to the channel. This means that the second chain 2 has a certain degree of freedom within the channel, and can move or adjust its position along the length of the channel, thereby allowing the two sides of the zipper to move or adjust relative to each other, achieving more flexible design requirements. The zipper of this embodiment can be applied to situations where the alignment of the two sides of the zipper needs to be adjusted, or where the two sides of the zipper need to move along the length of the zipper.

[0081] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A chain assembly, characterized in that, The chain assembly includes: A first chain; the first chain includes a plurality of first teeth, each first tooth having a first space and an opening communicating with the first space, the first spaces of the plurality of first teeth being arranged to form a channel; A second chain; the second chain includes a plurality of second teeth, the thickness of which is greater than the width of the opening; The first chain and the second chain can be chained together. In the chained state, the second chain passes through the opening, and a plurality of second teeth are located in the channel and can slide relative to the channel.

2. The chain assembly as described in claim 1, characterized in that, The first tooth includes a clamping portion, the first space is disposed within the clamping portion, the clamping portion includes a limiting portion disposed on the first chain engagement side, and the opening is disposed on one side of the limiting portion along the thickness direction of the first tooth.

3. The chain assembly as described in claim 2, characterized in that, The clamping part further includes a first connecting part, a second connecting part, and a third connecting part, wherein the second connecting part is connected to one side of the first connecting part and the second connecting part is connected to the other side of the first connecting part; The limiting part is connected to the side of the second connecting part away from the first connecting part and extends toward the third connecting part; The first connecting portion, the second connecting portion, the third connecting portion, and the limiting portion form the first space, and the opening is located between the third connecting portion and the limiting portion.

4. The chain assembly as described in claim 2 or 3, characterized in that, The second chain has a convex side on one side in the thickness direction, and a flat side on the other side opposite to the convex side. The second tooth is located on the convex side to form a convex structure. In the closed state, the protruding side and the limiting part are located on the same side of the chain assembly, and the flat side and the opening are located on the same side of the chain assembly.

5. The chain assembly as described in claim 4, characterized in that, A waterproof membrane is provided on the flat side opposite to the protruding side.

6. The chain assembly as claimed in claim 1, characterized in that, The chain assembly also includes a stop member detachably connected to a first tooth at at least one end of the second chain to restrict the sliding of the second tooth within the channel.

7. The chain assembly as claimed in claim 6, characterized in that, The first tooth includes a clamping portion, and the first space is disposed within the clamping portion; The stop includes a frame-shaped member having a second space, the frame-shaped member including a first side bar located on one side of the second space, the lateral dimension of the first side bar being greater than the width of the opening, and the first side bar being compressible through the opening; When the stop member is connected to the first tooth, the first side rod is located in the first space, and the frame member is sleeved on the side member of the clamping part through the second space.

8. The chain assembly as claimed in claim 7, characterized in that, The side component includes a second connecting part and a limiting part. The second connecting part is located on one side of the clamping part, and the limiting part is connected to the side of the second connecting part near the first chain engagement side. There is a first enlarged portion between the second connecting portion and the limiting portion. The size of the first enlarged portion is larger than the width of the second space, and the first enlarged portion can be squeezed through the second space. When the stop member is connected to the first tooth, the frame member is located on the side of the first enlarged portion that is away from the limiting portion.

9. The chain assembly as claimed in claim 8, characterized in that, The clamping part further includes a first connecting part, a second connecting part connected to one side of the first connecting part, and a second enlarged part provided between the first connecting part and the second connecting part. The size of the second enlarged part is larger than the width of the second space, and the second enlarged part can be squeezed through the second space. When the stop member is connected to the first tooth, the frame member is located on the side of the second enlarged portion that is away from the second connecting portion.

10. A zipper, characterized in that, The zipper includes the chain assembly as described in any one of claims 1-9.

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