A zipper with replaceable chain teeth

Abstract

The present invention discloses a zipper with replaceable chain teeth, which belongs to the field of zippers. In the zipper with replaceable chain teeth, a plurality of detachable movable chain teeth are arranged on the top of a chain plate. When a local fixed chain tooth falls off, a vacant space is formed on the chain plate. At this time, the top movable chain tooth can be removed, and the waterproof layer can be torn off, and then it can be stuck in the vacant space. With the action of high temperature, force is applied to the chain clamping needle to make it penetrate the chain plate and embed into the lower auxiliary ball, thereby realizing the preliminary positioning of the movable chain tooth. Then, water is added to soak the chain plate so that the movable chain tooth and the chain plate are closely adhered to each other, and the chain teeth are replaced. Compared with the prior art, when a local chain tooth falls off, there is no need to replace the entire chain plate, thereby greatly improving the utilization rate of the zipper and reducing the waste of resources.

Description

Technical Field

[0001] The present invention relates to the field of zippers, and more particularly to a zipper with replaceable chain teeth. Background Art

[0002] A zipper is a connector that connects or separates items by means of continuously arranged chain teeth. It is now widely used in clothing, bags, tents, etc. A zipper consists of chain teeth, a puller, upper and lower stops (front and rear stops) or locking parts. The chain teeth are the key part, which directly determines the side pull strength of the zipper. Generally, a zipper has two chain belts, each with a row of chain teeth, and the two rows of chain teeth are arranged alternately. The puller clamps the chain teeth on both sides, and with the help of the pull loop, the chain teeth on both sides can be meshed or disengaged.

[0003] In the prior art, after a zipper has been used for a long time, the chain head will rub against the chain teeth every time it is pulled, causing the problem of partial chain teeth falling off. When this happens, the entire zipper is often replaced, resulting in serious waste of resources and low utilization of the zipper. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] In view of the problems existing in the prior art, the purpose of the present invention is to provide a zipper with replaceable chain teeth. By arranging a plurality of detachable moving chain teeth on the top of the chain plate, when the local fixed chain teeth fall off, a vacant space is formed on the chain plate. At this time, the top moving chain tooth can be removed, and the waterproof layer can be torn off, and then it can be inserted into the vacant space. Under the action of high temperature, force is applied to the chain needle to make it penetrate the chain plate and embed into the lower auxiliary ball, thereby achieving preliminary positioning of the moving chain teeth, and then the chain plate is soaked with water to make the moving chain teeth closely adhere to the chain plate, and the replacement of the chain teeth is completed. Compared with the prior art, when local chain teeth fall off, there is no need to replace the entire chain plate, thereby greatly improving the utilization rate of the zipper and reducing the waste of resources.

[0006] Technical Solution

[0007] To solve the above problems, the present invention adopts the following technical solutions.

[0008] A zipper with replaceable chain teeth comprises two chain pieces, and the ends of the two chain pieces close to each other are both equipped with a plurality of evenly distributed fixed chain teeth, the chain pieces are slidably connected with chain heads, and the two chain pieces are linked together by the chain heads, a lower positioning block is fixedly connected to the bottom of one of the chain pieces, and the upper ends of the two chain pieces are fixedly connected to the upper positioning blocks, and the ends of the two chain pieces close to each other are also clamped with a plurality of moving chain teeth that are linked to each other, and the plurality of moving chain teeth are all located between the upper positioning block and the fixed chain teeth, and the moving chain teeth are provided with an embedded groove near the upper end of the chain piece connected thereto, a limiting rope is sewn on the chain piece, the limiting rope is located in the embedded groove, and the limiting rope is in close contact with the inner wall of the embedded groove, and two inner fixed holes are drilled on the moving chain teeth, a chain clamping needle is inserted in the inner fixed hole, a limiting layer is filled in the inner fixed hole, and the lower end of the chain clamping needle is embedded in the limiting layer.

[0009] Furthermore, the limiting layer is made of hot-melt material, and the hot-melt temperature of the limiting layer is 50-60°C.

[0010] Furthermore, a plurality of barb structures are provided on the outer surface of the chain needle, and the tips of the barb structures face upward, and the top of the chain needle is lower than the edge of the inner fixed hole.

[0011] Furthermore, a groove is chiseled in the middle of the moving chain tooth, and the groove matches the chain plate. The upper inner wall of the moving chain tooth is movably inlaid with two upper auxiliary balls corresponding to the inner fixed holes respectively, and the lower inner wall of the moving chain tooth is movably inlaid with two lower auxiliary balls corresponding to the upper auxiliary balls respectively, and the ends of the lower auxiliary balls and the upper auxiliary balls that are close to each other protrude into the groove.

[0012] Furthermore, the upper booster ball includes an inner buffer layer and an outer hard layer fixedly wrapped outside the inner buffer layer, the outer hard layer is a hard and brittle structure, and the inner buffer layer is made of an elastic hot-melt material.

[0013] Furthermore, the lower auxiliary ball is an elastic structure with high toughness, and the hot-melt material of the inner buffer layer is consistent with the hot-melt material of the limiting layer.

[0014] Furthermore, multiple sections of FiberFix tape are fixedly connected to the upper and lower inner walls of the groove, and the multiple sections of FiberFix tape are spaced apart from the two inner fixed holes.

[0015] Furthermore, a plurality of waterproof layers are bonded to the upper and lower inner walls of the groove, and the plurality of waterproof layers respectively seal and cover a plurality of sections of FiberFix tape, and the edges of the waterproof layers extend to the edges of the groove.

[0016] Furthermore, the specific steps of replacing the sprocket teeth of the zipper are:

[0017] S1. When one of the fixed sprockets falls off accidentally, a vacant space is formed on the chain plate. First, cut the limit rope, then pull out the movable sprocket, then tear off the waterproof layer, and then insert the movable sprocket into the vacant space;

[0018] S2. Use a high-temperature thin rod-shaped structure to insert along the inner fixed hole and contact the chain pin to melt the limiting layer, and then apply downward force to make the lower end of the chain pin pass through the upper auxiliary ball and the chain plate in turn, and embed into the lower auxiliary ball to fix the position of the moving chain teeth;

[0019] S3. After both chain pins are embedded in the corresponding lower assist balls, add water to the chain piece near the control position to allow the water to seep into the groove along the chain piece. At this time, the FiberFix tape becomes sticky when it comes into contact with water, and the chain piece is bonded and fixed to the upper and lower inner walls of the groove, completing the replacement of the dropped fixed chain teeth.

[0020] Furthermore, before performing step S2, the position of the movable chain teeth is adjusted so that the distances between the two ends of the movable chain teeth and the adjacent fixed chain teeth are the same, and before applying force to the second chain clamping needle, the position of the movable chain teeth is adjusted so that the movable chain teeth are parallel to the adjacent fixed chain teeth.

[0021] Beneficial Effects

[0022] Compared with the prior art, the advantages of the present invention are:

[0023] (1) This scheme forms a vacant space on the chain plate by setting a plurality of detachable movable chain teeth on the top of the chain plate when the local fixed chain teeth fall off. At this time, the top movable chain tooth can be removed, and the waterproof layer can be torn off, and then it can be inserted into the vacant space. With the action of high temperature, force is applied to the chain needle to make it penetrate the chain plate and embed into the lower auxiliary ball, thereby achieving the initial positioning of the movable chain tooth. Then, by soaking the chain plate with water, the movable chain tooth and the chain plate are closely adhered to complete the replacement of the chain teeth. Compared with the prior art, when a part of the chain teeth fall off, there is no need to replace the entire chain plate, thereby greatly improving the utilization rate of the zipper and reducing the waste of resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the front side of the present invention;

[0025] Figure 2 for Figure 1 The structural diagram at A in the middle;

[0026] Figure 3 It is a structural schematic diagram of the cross section of the movable chain tooth of the present invention;

[0027] Figure 4 for Figure 3 Schematic diagram of the structure at B in the middle;

[0028] Figure 5It is a structural schematic diagram of the chain needle of the present invention;

[0029] Figure 6 It is a structural schematic diagram of the assisting ball of the present invention;

[0030] Figure 7 It is a structural schematic diagram of the present invention when the movable chain teeth are used to replace the fallen fixed chain teeth;

[0031] Figure 8 The diagram is a schematic diagram of the changing structure of the movable chain teeth when the movable chain teeth replace the fallen fixed chain teeth in the present invention.

[0032] Description of the numbers in the figure:

[0033] 1 chain plate, 2 fixed chain teeth, 3 chain heads, 4 moving chain teeth, 51 lower positioning block, 52 upper positioning block, 6 limiting rope, 61 inner groove, 7 inner fixing hole, 8 chain needle, 81 limiting layer, 91 lower assisting ball, 92 upper assisting ball, 921 outer hard layer, 922 inner buffer layer, 10 waterproof layer. DETAILED DESCRIPTION

[0034] The following will combine the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all the embodiments. All other embodiments obtained by ordinary technicians in this field without creative work based on the embodiments of the present invention belong to the scope of protection of the present invention.

[0035] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example

[0037] See also Figure 1A zipper with replaceable chain teeth comprises two chain pieces 1, and the ends of the two chain pieces 1 close to each other are both equipped with a plurality of evenly distributed fixed chain teeth 2. A chain head 3 is slidably connected to the chain piece 1, and the two chain pieces 1 are linked together through the chain head 3. A lower positioning block 51 is fixedly connected to the bottom of one chain piece 1, and the upper ends of the two chain pieces 1 are fixedly connected to the upper positioning blocks 52. The lower positioning block 51 is used to limit and connect the lower ends of the two chain pieces 1, and bind the lower ends of the two chain pieces 1 together, so that the lower ends are not easy to crack, and the upper positioning block 52 is used to limit the chain head 3, so that the chain head 3 is not easy to separate from the chain piece 1.

[0038] See also Figure 2 The ends of the two chain pieces 1 close to each other are also clamped with multiple movable chain teeth 4 that are linked to each other. The multiple movable chain teeth 4 are all located between the upper positioning block 52 and the fixed chain teeth 2, and the movable chain teeth 4 are located at the uppermost end. When the fixed chain teeth 2 fall off, after the movable chain teeth 4 are removed, it is not easy to affect the normal chain connection between the two chain pieces 1. The movable chain teeth 4 are close to the upper ends of the chain pieces 1 connected thereto, and an embedded groove 61 is chiseled on the chain piece 1. The limiting rope 6 is located in the embedded groove 61, and the limiting rope 6 is in close contact with the inner wall of the embedded groove 61. The limiting rope 6 is used to limit the movable chain teeth 4, temporarily control the movable chain teeth 4 so that it is not easy to fall off from the chain piece 1, and two internal fixed holes 7 are chiseled on the movable chain teeth 4.

[0039] The movable chain teeth 4 are consistent with the fixed chain teeth 2, except that the fixed chain teeth 2 are not provided with the inner fixed hole 7, the lower auxiliary ball 91, the upper auxiliary ball 92 and other related structures, so that after the fallen fixed chain teeth 2 are replaced with the upper movable chain teeth 4, they can still be chained normally.

[0040] A groove is chiseled in the middle of the movable chain tooth 4, and the groove matches the chain plate 1. The upper inner wall of the movable chain tooth 4 is movably inlaid with two upper auxiliary balls 92 corresponding to the inner fixed holes 7 respectively, and the lower inner wall of the movable chain tooth 4 is movably inlaid with two lower auxiliary balls 91 corresponding to the upper auxiliary balls 92 respectively, and the ends of the lower auxiliary balls 91 and the upper auxiliary balls 92 close to each other both protrude into the groove. After the movable chain tooth 4 is removed, when the groove of the movable chain tooth 4 is aligned with the chain plate 1 at the vacant position, after the chain plate 1 is embedded in the movable chain tooth 4, rolling friction is generated between the lower auxiliary balls 91 and the upper auxiliary balls 92 and the chain plate 1, which effectively reduces friction compared to sliding friction, thereby facilitating the connection between the movable chain tooth 4 and the chain plate 1.

[0041] See also Figure 3-4A chain needle 8 is inserted into the inner fixing hole 7, and a limiting layer 81 is filled in the inner fixing hole 7. The lower end of the chain needle 8 is embedded in the limiting layer 81. The limiting layer 81 is made of hot-melt material, and the hot-melting temperature of the limiting layer 81 is 50-60°C. The limiting layer 81 limits the position of the chain needle 8, so that the chain needle 8 is not easy to fall off accidentally. When the moving chain tooth 4 needs to be installed in the empty position, the chain needle 8 can be heated and the heat can be transferred to the limiting layer 81 to make it hot-melted, thereby releasing the restriction on the chain needle 8. At this time, force is applied to facilitate the chain needle 8 to penetrate the chain plate 1 and embed into the lower auxiliary ball 91 below.

[0042] The upper and lower inner walls of the groove are fixedly connected with multiple sections of FiberFix tape. The FiberFix tape will produce strong adhesion when it comes into contact with water. When the moving chain tooth 4 is installed in the empty position, the chain plate 1 is soaked in water to stably connect the moving chain tooth 4 to the chain plate 1, so that the stability of the connection of the moving chain tooth 4 is effectively guaranteed when the chain is closed. The multiple sections of FiberFix tape and the two internal fixed holes 7 are spaced apart from each other. Multiple waterproof layers 10 are also adhered to the upper and lower inner walls of the groove. The multiple waterproof layers 10 respectively seal and cover the multiple sections of FiberFix tape. The waterproof layer 10 is used to isolate the FiberFix tape to prevent it from being easily contacted with water in advance, effectively avoiding the situation where the moving chain tooth 4 is difficult to remove from the chain plate 1. The edge of the waterproof layer 10 extends to the edge of the groove, so that the waterproof layer 10 is torn off before the moving chain tooth 4 is installed.

[0043] See also Figure 5 The outer surface of the chain needle 8 is provided with a plurality of barb structures, and the tip of the barb structure faces upward, so that after the chain needle 8 is embedded in the lower auxiliary ball 91, the barb structure makes the lower auxiliary ball 91 and the chain needle 8 tightly connected and not easy to loosen, thereby effectively ensuring the stability of the connection between the moving chain tooth 4 and the chain plate 1 after replacement. The top of the chain needle 8 is lower than the edge of the mouth of the internal fixed hole 7, so that the chain needle 8 is not easily accidentally squeezed.

[0044] See also Figure 6The upper booster ball 92 includes an inner buffer layer 922 and an outer hard layer 921 fixedly wrapped outside the inner buffer layer 922. The outer hard layer 921 is a hard and brittle structure, which makes it fragile when subjected to force, and is convenient for the chain needle 8 to penetrate. The inner buffer layer 922 is made of an elastic hot-melt material. The inner buffer layer 922 plays a certain supporting and buffering role on the outer hard layer 921 inside, so that it is not easy to break in advance by accident, so that the chain piece 1 can stably roll and rub with the upper booster ball 92 when it is in the groove of the moving chain tooth 4, and the lower booster ball 91 is a high-toughness elastic structure. After the chain needle 8 is embedded in 9, the chain needle 8 can be in close contact with the lower auxiliary ball 91, thereby restraining the chain needle 8 and making it difficult for it to fall off from the lower auxiliary ball 91, thereby making the connection stability between the moving chain tooth 4 and the chain plate 1 higher. The hot-melt material of the inner buffer layer 922 is consistent with the hot-melt material of the limiting layer 81, so that when the limiting layer 81 is heated, the inner buffer layer 922 can also be softened to a certain extent by the heat, thereby reducing the difficulty of the chain needle 8 penetrating the upper auxiliary ball 92.

[0045] The specific steps for replacing the zipper teeth are:

[0046] S1, such as Figure 7 When one of the fixed sprockets 2 falls off accidentally, a vacant space is formed on the chain plate 1. First, the limit rope 6 is cut off, and then the movable sprocket 4 is pulled out, and then the waterproof layer 10 is torn off, and then the movable sprocket 4 is inserted into the vacant space;

[0047] S2, such as Figure 8 , use a high-temperature thin rod-shaped structure to be inserted along the inner fixed hole 7 and abut against the chain pin 8, so that the limiting layer 81 is hot-melted, and then force is applied downward to make the lower end of the chain pin 8 pass through the upper auxiliary ball 92 and the chain plate 1 in turn, and embed into the lower auxiliary ball 91, so as to fix the position of the moving chain tooth 4;

[0048] S3. After the two chain needles 8 are embedded in the corresponding lower auxiliary balls 91, add water to the chain piece 1 near the control position to allow the water to penetrate into the groove along the chain piece 1. At this time, the FiberFix tape becomes sticky when it meets water, and the chain piece 1 is bonded and fixed to the upper and lower inner walls of the groove, completing the replacement of the dropped fixed chain tooth 2.

[0049] Before performing step S2, adjust the position of the movable chain tooth 4 so that the distances between the two ends of the movable chain tooth 4 and the adjacent fixed chain tooth 2 are the same. Before applying force to the second chain clamping needle 8, adjust the position of the movable chain tooth 4 so that the movable chain tooth 4 is parallel to the adjacent fixed chain tooth 2.

[0050] By arranging a plurality of detachable moving chain teeth 4 on the top of the chain piece 1, when the local fixed chain teeth 2 fall off, a vacant space is formed on the chain piece 1. At this time, the top moving chain tooth 4 can be removed, and the waterproof layer 10 can be torn off, and then it can be stuck into the vacant space. With the action of high temperature, force is applied to the chain needle 8 to make it penetrate the chain piece 1 and embed into the lower auxiliary ball 91, thereby realizing the preliminary positioning of the moving chain tooth 4, and then the chain piece 1 is soaked in water to make the moving chain tooth 4 tightly adhere to the chain piece 1, and the replacement of the chain teeth is completed. Compared with the prior art, when a local chain tooth falls off, there is no need to replace the entire chain piece 1, thereby greatly improving the utilization rate of the zipper and reducing the waste of resources.

[0051] The above is only a preferred specific implementation manner of the present invention; but the protection scope of the present invention is not limited thereto; any technician familiar with the technical field within the technical scope disclosed by the present invention; any equivalent replacement or change based on the technical solution and improved concept of the present invention shall be covered by the protection scope of the present invention.

Claims

1. A zipper with replaceable chain teeth, comprising two chain plates (1), the ends of the two chain plates (1) close to each other are both provided with a plurality of evenly distributed fixed chain teeth (2), the chain plates (1) are slidably connected with chain heads (3), and the two chain plates (1) are linked together by the chain heads (3), characterized in that: A lower positioning block (51) is fixedly connected to the bottom of one of the chain plates (1); the upper ends of the two chain plates (1) are fixedly connected to the upper positioning block (52); the ends of the two chain plates (1) close to each other are also clamped with a plurality of mutually linked movable chain teeth (4); the plurality of movable chain teeth (4) are located between the upper positioning block (52) and the fixed chain teeth (2); an embedded groove (61) is bored at the upper end of the movable chain teeth (4) close to the chain plate (1) connected thereto; a limiting rope (6) is sewn on the chain plate (1); the limiting rope (6) is located in the embedded groove (61), and the limiting rope (6) is in close contact with the inner wall of the embedded groove (61); two inner fixed holes (7) are bored on the movable chain teeth (4); a chain clamping needle (8) is inserted into the inner fixed hole (7); a limiting layer (81) is filled in the inner fixed hole (7); the lower end of the chain clamping needle (8) is embedded in the limiting layer (81); The limiting layer (81) is made of a hot-melt material, and the hot-melt temperature of the limiting layer (81) is 50-60° C.; The outer surface of the chain needle (8) is provided with a plurality of barb structures, and the tips of the barb structures face upwards, and the top of the chain needle (8) is lower than the edge of the mouth of the internal fixed hole (7); A groove is bored in the middle of the movable chain tooth (4), the groove matches the chain plate (1), the upper inner wall of the movable chain tooth (4) is movably inlaid with two upper auxiliary balls (92) corresponding to the inner fixed holes (7), and the lower inner wall of the movable chain tooth (4) is movably inlaid with two lower auxiliary balls (91) corresponding to the upper auxiliary balls (92), and the ends of the lower auxiliary balls (91) and the upper auxiliary balls (92) that are close to each other protrude into the groove; The upper assisting ball (92) comprises an inner buffer layer (922) and an outer hard layer (921) fixedly wrapped around the inner buffer layer (922); the outer hard layer (921) is a hard and brittle structure, and the inner buffer layer (922) is made of an elastic hot-melt material; The lower assisting ball (91) is a highly tough elastic structure, and the hot-melt material of the inner buffer layer (922) is consistent with the hot-melt material of the limiting layer (81).

2. A zipper with replaceable sprocket teeth according to claim 1, characterized in that: The upper and lower inner walls of the groove are fixedly connected with multiple sections of FiberFix tape, and the multiple sections of FiberFix tape are spaced apart from the two inner fixed holes (7).

3. A zipper with replaceable sprocket teeth according to claim 2, characterized in that: A plurality of waterproof layers (10) are also bonded to the upper and lower inner walls of the groove, and the plurality of waterproof layers (10) respectively seal and cover a plurality of sections of FiberFix tape, and the edges of the waterproof layers (10) extend to the edges of the groove.

4. A zipper with replaceable sprocket teeth according to claim 3, characterized in that: The specific steps of replacing the sprocket teeth of the zipper are: S1. When one of the fixed sprockets (2) accidentally falls off, a vacant space is formed on the chain plate (1). First, the limit rope (6) is cut off, and then the movable sprocket (4) is pulled outward, and then the waterproof layer (10) is torn off, and then the movable sprocket (4) is inserted into the vacant space; S2, using a high-temperature thin rod-shaped structure to be inserted along the inner fixed hole (7) and to abut against the chain pin (8), so that the limiting layer (81) is melted by heat, and then force is applied downward so that the lower end of the chain pin (8) passes through the upper auxiliary ball (92) and the chain plate (1) in sequence, and is embedded in the lower auxiliary ball (91), so as to fix the position of the moving chain tooth (4); S3. After both chain pins (8) are embedded in the corresponding lower assisting balls (91), water is added to the chain piece (1) near the control position, so that the water penetrates into the groove along the chain piece (1). At this time, the FiberFix tape becomes sticky when it meets water, and the chain piece (1) is bonded and fixed to the upper and lower inner walls of the groove, thereby completing the replacement of the dropped fixed chain tooth (2).

5. A zipper with replaceable sprocket teeth according to claim 4, characterized in that: Before carrying out step S2, the position of the movable chain tooth (4) is adjusted so that the distances between the two ends of the movable chain tooth (4) and the adjacent fixed chain tooth (2) are the same, and before applying force to the second chain clamping needle (8), the position of the movable chain tooth (4) is adjusted so that the movable chain tooth (4) is parallel to the adjacent fixed chain tooth (2).

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