Fault tolerant zipper

Abstract

The application discloses a fault-tolerant zipper, which comprises a first chain cloth, a second chain cloth, a first chain tooth connected to the first chain cloth along the length direction of the first chain cloth, a first groove penetrating through the first chain tooth from the first end to the end of the first chain tooth, the opening direction of the first groove being perpendicular to the direction of the first chain cloth plane, a first clamping part provided at the end of the first chain tooth away from the first groove, a plurality of second chain teeth connected to the second chain cloth along the length direction of the second chain cloth, a second groove provided on the second chain tooth, the opening direction of the second groove being perpendicular to the direction of the second chain cloth plane, a second clamping part provided at the end of the second chain tooth away from the second groove, the plurality of second chain teeth being capable of being clamped on the same first chain tooth, and a puller connected to the first chain cloth and the second chain cloth at both ends, and capable of clamping or separating the first chain tooth and the second chain tooth.

Description

Technical Field

[0001] This application relates to the field of zipper technology, and more particularly to a fault-tolerant zipper. Background Technology

[0002] A zipper consists of teeth, a slider, and top and bottom stops (front and back stops) or locking mechanisms. The teeth are the key component, directly determining the zipper's lateral pulling strength. Generally, a zipper has two straps, each with a row of teeth, arranged alternately. The slider grips the teeth on both sides, and by sliding along the loops, the teeth can be engaged or disengaged.

[0003] In existing solutions, the spacing between adjacent teeth on the same row of chain belts and the spacing between adjacent teeth on another row of chain belts are subject to strict requirements. The error range cannot be too large, otherwise the teeth on both sides will not be able to mesh with each other. With the accumulation of errors, the two chain belts will be of different lengths. In addition, the size of each tooth in the two rows of chain belts must also be equal, which means that there is no universality between chain teeth of different sizes. Summary of the Invention

[0004] The purpose of this application is to provide a fault-tolerant zipper to solve at least one of the aforementioned technical problems.

[0005] A fault-tolerant zipper, comprising:

[0006] First chain fabric, second chain fabric;

[0007] The first chain tooth is connected to the first chain cloth along the length of the first chain cloth. A first groove is provided through the first chain tooth from its first end to its last end. The opening direction of the first groove is perpendicular to the direction of the plane of the first chain cloth. A first engaging part is provided at the end of the first chain tooth away from the first groove.

[0008] The second chain tooth, several second chain teeth are connected to the second chain cloth along the length direction of the second chain cloth; the second chain tooth is provided with a second groove, the opening direction of the second groove is perpendicular to the direction of the plane of the second chain cloth; the end of the second chain tooth away from the second groove is provided with a second engaging part;

[0009] Several second chain teeth can engage with the same first chain tooth;

[0010] The zipper head has two ends connected to the first and second chain fabrics, respectively, enabling the first and second chain teeth to engage or disengage. A compression structure is located in the middle of the zipper head, and a pressing structure is located at the end. The pressing structure compresses the second chain tooth to bring it closer to the first chain tooth, while the compression structure compresses both the first and second chain teeth to engage them. A limiting structure is located within the pressing structure to limit the movement of the first and second chain teeth, preventing over-pressure on the pressing structure.

[0011] Its beneficial effects are: the first chain tooth extends from one end to the other on the first chain fabric, and several second chain teeth engage with the first chain tooth, changing the traditional connection method between chain teeth. The precision requirements for the spacing between each second chain tooth and the size of the second chain tooth are not high within the range that can be observed by the naked eye, which can improve the versatility of the second chain tooth. Moreover, when a second chain tooth cannot engage with the first chain tooth, the first and second chain fabrics will not be of different lengths, ultimately improving the overall fault tolerance of the zipper.

[0012] A fault-tolerant zipper, comprising:

[0013] First chain fabric, second chain fabric;

[0014] First chain teeth, several first chain teeth are connected to the first chain cloth along the length direction of the first chain cloth, and a first groove is provided on the first chain teeth. The opening direction of the first groove is perpendicular to the direction of the plane of the first chain cloth. A first engaging part is provided at the end of the first chain tooth away from the first groove.

[0015] The second chain tooth, several second chain teeth are connected to the second chain cloth along the length direction of the second chain cloth; the second chain tooth is provided with a second groove, the opening direction of the second groove is perpendicular to the direction of the plane of the second chain cloth; the end of the second chain tooth away from the second groove is provided with a second engaging part;

[0016] Each first chain tooth can engage with at least two first chain teeth.

[0017] The zipper head has two ends connected to the first and second chain fabrics, respectively, enabling the first and second chain teeth to engage or disengage. A compression structure is located in the middle of the zipper head, and a pressing structure is located at the end. The pressing structure compresses the second chain tooth to bring it closer to the first chain tooth, while the compression structure compresses both the first and second chain teeth to engage them. A limiting structure is located within the pressing structure to limit the movement of the first and second chain teeth, preventing over-pressure on the pressing structure.

[0018] Its beneficial effects are: several first chain teeth are set on the first chain fabric, and at least two second chain teeth engage with one first chain tooth, which changes the traditional connection method between zipper chain teeth. The precision requirements for the spacing between each second chain tooth, the size of the second chain tooth, and the spacing between adjacent first chain teeth are not high within the range that can be observed by the naked eye, which can improve the versatility of the second chain teeth. Moreover, when a second chain tooth cannot engage with a first chain tooth, the first and second chain fabrics will not be of different lengths, ultimately improving the overall fault tolerance of the zipper.

[0019] In some embodiments, a first anti-detachment structure is provided at the end of the first chain tooth near the first groove, and a second anti-detachment structure is provided on the first engaging part;

[0020] The second chain tooth has a third anti-detachment structure at one end near the second groove, and the second engagement part has a fourth anti-detachment structure.

[0021] In some implementations, the first anti-detachment structure can be matched with the fourth anti-detachment structure, and the second anti-detachment structure can be matched with the third anti-detachment structure.

[0022] Its beneficial effect is that it can prevent the engagement between the first chain tooth and the second chain tooth from loosening when the first chain tooth is subjected to force from the width direction of the first chain cloth, and the second chain tooth is subjected to force from the width direction of the second chain cloth, thereby improving the stability of their fixation.

[0023] In some implementations, the zipper pull includes:

[0024] Bottom shell, top shell;

[0025] A connecting column, one end of which is connected to the bottom shell and the other end of which is connected to the top shell;

[0026] The opening structure is provided between the connecting column and the bottom shell and the top shell respectively;

[0027] The extrusion structure is located at the rear end of the open structure, and the extrusion structure is respectively set on the bottom shell and the top shell;

[0028] The clamping structure is located at the rear end of the extrusion structure and is set at the end of the top shell. The height of the clamping structure is lower than the height of the top shell.

[0029] The outlet structure is located at the clamping structure and is used for the first chain tooth and the second chain tooth to pass through respectively.

[0030] Its beneficial effects are: the first and second chain teeth can pass through the opening structure, and under the pressure of the extrusion structure, they will approach each other. Under the pressure of the clamping structure, the first and second chain teeth will be locked together. After being clamped by the clamping structure, the first and second chain teeth can pass through the exit structure.

[0031] In some embodiments, the opening structure includes a first opening and a second opening located at the left and right ends of the connecting post, respectively, and the first opening and the second opening are respectively able to allow the first chain tooth and the second chain tooth to pass through.

[0032] In some embodiments, the extrusion structure protrudes into the drawing head, and the extrusion structure includes...

[0033] The first protrusion is located in the rear end direction of the first opening;

[0034] The second protrusion is located at the rear end of the second opening.

[0035] Its beneficial effects are: the first protrusion can squeeze the second chain tooth, and the second protrusion can squeeze the first chain tooth, so that the first chain tooth and the second chain tooth can engage with each other.

[0036] In some embodiments, a first limiting portion is provided on the first protrusion located at the left end of the top shell;

[0037] A second limiting part is provided on the second protrusion located at the right end of the bottom shell.

[0038] Its beneficial effects are: the first limiting part can support one end of the downward second chain tooth, and the second limiting part can support the other end of the downward second chain tooth, preventing the second chain tooth from being over-pressurized.

[0039] In some implementations, the outlet structure includes:

[0040] The first outlet is located at the rear end of the first protrusion and is used for the first chain tooth to pass through;

[0041] The second outlet, located at the rear end of the second protrusion, is used for the passage of the second chain tooth.

[0042] In some implementations, the limiting structure includes:

[0043] The third limiting part is provided inside the clamping structure and is located above the end of the first outlet part, and is used to limit the first chain tooth;

[0044] The fourth limiting part is located inside the clamping structure and below the end of the second outlet part, and is used to limit the second chain tooth.

[0045] Its beneficial effects are: the third limiting part acts on the upper end of the first chain tooth, and the fourth limiting part acts on the lower end of the second chain tooth. The purpose of setting the third limiting part and the fourth limiting part is to prevent the pressing structure from excessively squeezing the first chain tooth and the second chain tooth when pressing them, and to limit the first chain tooth and the second chain tooth respectively. Attached Figure Description

[0046] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0047] Figure 1This is a schematic diagram of the zipper structure in Example 1.

[0048] Figure 2 This is a schematic diagram of the zipper after the zipper pull has been removed in Example 1.

[0049] Figure 3 Bit Figure 2 The front view.

[0050] Figure 4 This is a side view of the slider in Example 1.

[0051] Figure 5 This is a rear view of the pull head in Example 1.

[0052] Figure 6 This is a front view of the pull head in Example 1.

[0053] Figure 7 This is a front view of the pull head in Example 1.

[0054] Figure 8 Bit Figure 7 Enlarged view of part a.

[0055] Figure 9 Bit Figure 7 Enlarged view of part b in the middle.

[0056] Explanation of the reference numerals in the attached diagram:

[0057] 1. First chain fabric; 2. Second chain fabric; 3. First chain tooth; 4. Second chain tooth; 5. Slider head; 31. First groove; 32. First engaging part; 33. First anti-detachment structure; 34. Second anti-detachment structure; 41. Second groove; 42. Second engaging part; 43. Third anti-detachment structure; 44. Fourth anti-detachment structure; 51. Bottom shell; 52. Top shell; 53. Connecting post; 54. Opening structure; 55. Extrusion structure; 56. Pressing structure; 57. Outlet structure; 58. Limiting structure; 541. First opening; 542. Second opening; 551. First protrusion; 552. Second protrusion; 561. First terminal; 562. Second terminal; 571. First outlet; 572. Second outlet; 581. Third limiting part; 582. Fourth limiting part; 5511. First limiting part; 5521. Second limiting part; Detailed Implementation

[0058] To make the objectives, technical solutions, and advantages of 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 only some, not all, of the embodiments of this application, and are used merely to explain this application and are not intended to limit it. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0059] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "inner," "outer," "both ends," "both sides," "bottom," and "top," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the elements 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. In addition, the terms "first," "second," "upper-level," "lower-level," "main," and "secondary," etc., are used for descriptive purposes only and can be simply used to more clearly distinguish different components, and should not be construed as indicating or implying relative importance.

[0060] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, or an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0061] like Figures 1-9 As shown, in Example 1,

[0062] A fault-tolerant zipper, comprising:

[0063] First chain fabric 1, second chain fabric 2;

[0064] The first chain tooth 3 is connected to the first chain cloth 1 along the length direction of the first chain cloth 1. A first groove 31 is provided through the first chain tooth 3 from its first end to its last end. The opening direction of the first groove 31 is perpendicular to the direction of the plane of the first chain cloth 1. A first engaging part 32 is provided at the end of the first chain tooth 3 away from the first groove 31.

[0065] Second chain teeth 4, several second chain teeth 4 are connected to the second chain cloth 2 along the length direction of the second chain cloth 2; a second groove 41 is provided on the second chain teeth 4, the opening direction of the second groove 41 is perpendicular to the direction of the plane of the second chain cloth 2; a second engaging part 42 is provided at the end of the second chain teeth 4 away from the second groove 41.

[0066] Several second chain teeth 4 can engage with the same first chain tooth 3;

[0067] The zipper head 5 has its two ends connected to the first chain fabric 1 and the second chain fabric 2, respectively, which enables the first chain tooth 3 and the second chain tooth 4 to engage or disengage. The zipper head 5 has a compression structure 55 in the middle and a pressing structure 56 at its end. The pressing structure 56 is used to compress the second chain tooth 4 to bring it closer to the first chain tooth 3. The compression structure 55 is used to compress the first chain tooth 3 and the second chain tooth 4 to make them engage. The pressing structure 56 has a limiting structure 58 inside, which is used to limit the first chain tooth 3 and the second chain tooth 4 respectively to prevent the pressing structure 56 from being over-pressurized.

[0068] Its beneficial effects are: the first chain tooth 3 extends from the beginning to the end on the first chain fabric 1, and several second chain teeth 4 engage with the first chain tooth 3, changing the traditional connection method between zipper chain teeth. The precision requirements for the spacing between each second chain tooth 4 and the size of the second chain tooth 4 are not high within the range that can be observed by the naked eye, which can improve the versatility of the second chain tooth 4. Moreover, when a second chain tooth 4 cannot engage with the first chain tooth 3, the first chain fabric 1 and the second chain fabric 2 will not be of different lengths, ultimately improving the overall fault tolerance of the zipper.

[0069] In Embodiment 2 (not shown in the accompanying drawings, but the relevant markings can be found in Embodiment 1),

[0070] A fault-tolerant zipper, comprising:

[0071] First chain fabric 1, second chain fabric 2;

[0072] First chain teeth 3, several first chain teeth 3 are connected to the first chain cloth 1 along the length direction of the first chain cloth 1, and a first groove 31 is provided on the first chain teeth 3. The opening direction of the first groove 31 is perpendicular to the direction of the plane of the first chain cloth 1; a first engaging part 32 is provided at the end of the first chain tooth 3 away from the first groove 31.

[0073] Second chain teeth 4, several second chain teeth 4 are connected to the second chain cloth 2 along the length direction of the second chain cloth 2; a second groove 41 is provided on the second chain teeth 4, the opening direction of the second groove 41 is perpendicular to the direction of the plane of the second chain cloth 2; a second engaging part 42 is provided at the end of the second chain teeth 4 away from the second groove 41.

[0074] Each first chain tooth 3 can engage with at least two first chain teeth 3.

[0075] The zipper head 5 has its two ends connected to the first chain fabric 1 and the second chain fabric 2, respectively, which enables the first chain tooth 3 and the second chain tooth 4 to engage or disengage. The zipper head 5 has a compression structure 55 in the middle and a pressing structure 56 at its end. The pressing structure 56 is used to compress the second chain tooth 4 to bring it closer to the first chain tooth 3. The compression structure 55 is used to compress the first chain tooth 3 and the second chain tooth 4 to make them engage. The pressing structure 56 has a limiting structure 58 inside, which is used to limit the first chain tooth 3 and the second chain tooth 4 respectively to prevent the pressing structure 56 from being over-pressurized.

[0076] Its beneficial effects are: several first chain teeth 3 are set on the first chain cloth 1, and at least two second chain teeth 4 are engaged with one first chain tooth 3, which changes the traditional connection method between chain teeth. The precision requirements for the spacing between each second chain tooth 4, the size of the second chain tooth 4, and the spacing between adjacent first chain teeth 3 are not high within the range that can be observed by the naked eye, which can improve the versatility of the second chain teeth 4. Moreover, when a second chain tooth 4 cannot be engaged with a first chain tooth 3, the first chain cloth 1 and the second chain cloth 2 will not be of different lengths, which ultimately improves the overall fault tolerance of the zipper.

[0077] It should also be noted that in existing solutions, to ensure relatively uniform force distribution on the chain teeth, the chain cloth is connected to the middle of the chain teeth. Otherwise, the interlocking chain teeth are prone to loosening due to uneven force distribution after receiving force from the width direction of the chain cloth. However, in the solution of this application, the first chain tooth 3 and the second chain tooth 4 can be connected at any position along the length direction of the first chain cloth 1 and the second chain cloth 2, respectively. The positions of the first chain tooth 3 and the second chain tooth 4 along the length direction of the first chain cloth 1 and the second chain cloth 2 can be corresponding to each other or not corresponding to each other.

[0078] like Figures 2-3 As shown,

[0079] Preferably, the first chain tooth 3 is provided with a first anti-detachment structure 33 at one end near the first groove 31, and the first engaging part 32 is provided with a second anti-detachment structure 34;

[0080] The second chain tooth 4 is provided with a third anti-detachment structure 43 at one end near the second groove 41, and a fourth anti-detachment structure 44 is provided on the second engaging part 42.

[0081] Preferably, the first anti-detachment structure 33 can be matched with the fourth anti-detachment structure 44, and the second anti-detachment structure 34 can be matched with the third anti-detachment structure 43. In this embodiment, the first and third anti-detachment structures 33 and 43 are arc-shaped grooves, and the number of arc-shaped grooves can be selected according to the specific application scenario. In this embodiment, the number of arc-shaped grooves is preferably three. In this embodiment, the second and third anti-detachment structures 34 and 43 are arc-shaped protrusions, and the number of arc-shaped protrusions corresponds one-to-one with the number of arc-shaped grooves. In this embodiment, the number of arc-shaped protrusions is preferably three.

[0082] Its beneficial effect is that it can prevent the engagement between the first chain tooth 3 and the second chain tooth 4 from loosening when the first chain tooth 3 is subjected to a force from the width direction of the first chain cloth 1 and the second chain tooth 4 is subjected to a force from the width direction of the second chain cloth 2, thereby improving the stability of their fixation.

[0083] like Figures 4-9 As shown,

[0084] Preferably, the slider 5 includes:

[0085] Bottom shell 51, top shell 52;

[0086] Connecting post 53, one end of which is connected to the bottom shell 51 and the other end is connected to the top shell 52;

[0087] Opening structure 54 is provided on the left and right sides of the connecting column 53 and between the bottom shell 51 and the top shell 52 respectively;

[0088] The extrusion structure 55 is located at the rear end of the opening structure 54, and the extrusion structure 55 is respectively installed on the bottom shell 51 and the top shell 52.

[0089] A clamping structure 56 is located at the rear end of the extrusion structure 55 and is disposed at the end of the top shell 52. The height of the clamping structure 56 is lower than the height of the top shell 52. The clamping structure 56 includes a first terminal 561 connected to the top shell 52 and a second terminal 562 connected to the first terminal 561. The first terminal 561 is at the same height as the top shell 52, and the height from the first terminal 561 to the second terminal 562 gradually decreases relative to the height of the top shell 52.

[0090] The outlet structure 57 is located at the clamping structure 56 and is used to allow the first chain tooth 3 and the second chain tooth 4 to pass through respectively.

[0091] Its beneficial effects are: the first chain tooth 3 and the second chain tooth 4 can pass through the opening structure 54, and under the compression of the extrusion structure 55, they will approach each other. Under the compression of the pressing structure 56, the first chain tooth 3 and the second chain tooth 4 will be locked together. After being pressed by the pressing structure 56, the first chain tooth 3 and the second chain tooth 4 can pass through the outlet structure 57.

[0092] Preferably, the opening structure 54 includes a first opening 541 and a second opening 542 located at the left and right ends of the connecting post 53, respectively, and the first opening 541 and the second opening 542 can respectively allow the first chain tooth 3 and the second chain tooth 4 to pass through.

[0093] Preferably, the extrusion structure 55 protrudes inward into the pull head 5, and the extrusion structure 55 includes...

[0094] The first protrusion 551 is located in the rear end direction of the first opening 541;

[0095] The second protrusion 552 is located at the rear end of the second opening 542.

[0096] Its beneficial effects are: the first protrusion 551 can squeeze the second chain tooth 4, and the second protrusion 552 can squeeze the first chain tooth 3, so that the first chain tooth 3 and the second chain tooth 4 are engaged with each other.

[0097] Preferably, a first limiting part 5511 is provided on the first protrusion 551 located at the left end of the top shell 52;

[0098] A second limiting part 5521 is provided on the second protrusion 552 located at the right end of the bottom shell 51.

[0099] Its beneficial effects are: the first limiting part 5511 can support one end of the downward second chain tooth 4, and the second limiting part 5521 can support the other end of the downward second chain tooth 4, preventing the second chain tooth 4 from being over-pressurized.

[0100] Preferably, export structure 57 includes:

[0101] The first outlet 571 is located at the rear end of the first protrusion 551 and is used for the first chain tooth 3 to pass through.

[0102] The second outlet 572 is located at the rear end of the second protrusion 552 and is used for the second chain tooth 4 to pass through.

[0103] Preferably, the limiting structure 58 includes:

[0104] The third limiting part 581 is provided inside the clamping structure 56 and is located above the end of the first outlet part 571, and is used to limit the first chain tooth 3.

[0105] The fourth limiting part 582 is provided inside the clamping structure 56 and is located below the end of the second outlet part 572, and is used to limit the second chain tooth 4.

[0106] Its beneficial effects are: the third limiting part 581 acts on the upper end of the first chain tooth 3, and the fourth limiting part 582 acts on the lower end of the second chain tooth 4. The third limiting part 581 and the fourth limiting part 582 are set to prevent the pressing structure 56 from excessively squeezing the first chain tooth 3 and the second chain tooth 4 when pressing them, and to limit the first chain tooth 3 and the second chain tooth 4 respectively.

[0107] When the zipper is zipped up, the first zipper tooth 3 and the second zipper tooth 4 pass through the first opening 541 and the second opening 542, respectively. When the first zipper tooth 3 and the second zipper tooth 4 pass through the first protrusion 551 and the second protrusion 552, they are squeezed together, causing the first zipper tooth 3 and the second zipper tooth 4 to move closer to each other. Finally, when they pass through the first exit 571 and the second exit 572, they are squeezed by the pressing structure 56, and the first zipper tooth 3 and the second zipper tooth 4 are locked together.

[0108] When the zipper is pulled down, the first zipper tooth 3 and the second zipper tooth 4 pass through the first exit 571 and the second exit 572 respectively. When the first zipper tooth 3 and the second zipper tooth 4 pass through the first protrusion 551 and the second protrusion 552 respectively, they are squeezed, causing the first zipper tooth 3 and the second zipper tooth 4 to move away from each other. Finally, after being guided by the guide post, they pass through the first opening 541 and the second opening 542 respectively, causing the first zipper tooth 3 and the second zipper tooth 4 to separate from each other.

[0109] The above descriptions are merely some embodiments of this application, used only to illustrate the technical solutions of this application, and not to limit it. It should be understood that those skilled in the art can make improvements or substitutions based on the above descriptions without departing from the inventive concept of this application, and all such improvements and substitutions should fall within the protection scope of the appended claims. In this case, all details can be replaced with equivalent elements, and the materials, shapes, and sizes can also be arbitrary.

Claims

1. A fault-tolerant zipper, characterized in that, include: First chain fabric (1), second chain fabric (2); The first chain tooth (3) is connected to the first chain cloth (1) along the length direction of the first chain cloth (1). A first groove (31) is provided through the first chain tooth (3) from its first end to its last end. The opening direction of the first groove (31) is perpendicular to the direction of the plane of the first chain cloth (1). A first engaging part (32) is provided at the end of the first chain tooth (3) away from the first groove (31). Second chain teeth (4), several second chain teeth (4) are connected to the second chain cloth (2) along the length direction of the second chain cloth (2); a second groove (41) is provided on the second chain teeth (4), the opening direction of the second groove (41) is perpendicular to the direction of the plane of the second chain cloth (2); a second engaging part (42) is provided at the end of the second chain tooth (4) away from the second groove (41); Several second chain teeth (4) can engage with the same first chain tooth (3); The zipper head (5) has its two ends connected to the first chain cloth (1) and the second chain cloth (2) respectively, which can make the first chain tooth (3) and the second chain tooth (4) engage or disengage. The zipper head (5) has a compression structure (55) in the middle and a pressing structure (56) at the end. The pressing structure (56) is used to compress the second chain tooth (4) to make it close to the first chain tooth (3). The compression structure (55) is used to compress the first chain tooth (3) and the second chain tooth (4) to make them engage. The pressing structure (56) has a limiting structure (58) inside. The limiting structure (58) is used to limit the first chain tooth (3) and the second chain tooth (4) respectively to prevent the pressing structure (56) from being over-pressurized.

2. A fault-tolerant zipper, characterized in that, include: First chain fabric (1), second chain fabric (2); First chain teeth (3), several first chain teeth (3) are connected to the first chain cloth (1) along the length direction of the first chain cloth (1), and a first groove (31) is provided on the first chain teeth (3), the opening direction of the first groove (31) is perpendicular to the direction of the plane of the first chain cloth (1); a first engaging part (32) is provided at the end of the first chain tooth (3) away from the first groove (31); Second chain teeth (4), several second chain teeth (4) are connected to the second chain cloth (2) along the length direction of the second chain cloth (2); a second groove (41) is provided on the second chain teeth (4), the opening direction of the second groove (41) is perpendicular to the direction of the plane of the second chain cloth (2); a second engaging part (42) is provided at the end of the second chain tooth (4) away from the second groove (41); A gap is provided between any two adjacent first chain teeth (3), and each first chain tooth (3) can engage with at least two first chain teeth (3); The zipper head (5) has its two ends connected to the first chain cloth (1) and the second chain cloth (2) respectively, which can make the first chain tooth (3) and the second chain tooth (4) engage or disengage. The zipper head (5) has a compression structure (55) in the middle and a pressing structure (56) at the end. The pressing structure (56) is used to compress the second chain tooth (4) to make it close to the first chain tooth (3). The compression structure (55) is used to compress the first chain tooth (3) and the second chain tooth (4) to make them engage. The pressing structure (56) has a limiting structure (58) inside. The limiting structure (58) is used to limit the first chain tooth (3) and the second chain tooth (4) respectively to prevent the pressing structure (56) from being over-pressurized.

3. A fault-tolerant zipper according to claim 1 or 2, characterized in that, The first chain tooth (3) is provided with a first anti-detachment structure (33) at one end near the first groove (31), and a second anti-detachment structure (34) is provided on the first engaging part (32); The second chain tooth (4) is provided with a third anti-detachment structure (43) at one end near the second groove (41), and the second engaging part (42) is provided with a fourth anti-detachment structure (44).

4. A fault-tolerant zipper according to claim 3, characterized in that, The first anti-detachment structure (33) can be matched with the fourth anti-detachment structure (44), and the second anti-detachment structure (34) can be matched with the third anti-detachment structure (43).

5. A fault-tolerant zipper according to claim 4, characterized in that, The slider (5) includes: Bottom shell (51), top shell (52); A connecting post (53) is connected at one end to the bottom shell (51) and at the other end to the top shell (52); An opening structure (54) is provided between the left and right sides of the connecting column (53) and the bottom shell (51) and the top shell (52). An extrusion structure (55) is located at the rear end of the opening structure (54), and the extrusion structure (55) is respectively disposed on the bottom shell (51) and the top shell (52); A pressing structure (56) is located at the rear end of the extrusion structure (55), and the pressing structure (56) is disposed at the end of the top shell (52). The height of the pressing structure (56) is lower than the height of the top shell (52). The outlet structure (57) is located at the clamping structure (56) and is used for the first chain tooth (3) and the second chain tooth (4) to pass through respectively.

6. A fault-tolerant zipper according to claim 5, characterized in that, The opening structure (54) includes a first opening (541) and a second opening (542) located at the left and right ends of the connecting post (53), respectively. The first opening (541) and the second opening (542) can be passed through by the first chain tooth (3) and the second chain tooth (4), respectively.

7. A fault-tolerant zipper according to claim 6, characterized in that, The extrusion structure (55) protrudes inward into the pull head (5), and the extrusion structure (55) includes The first protrusion (551) is located in the rear end direction of the first opening (541); The second protrusion (552) is located in the rear end direction of the second opening (542).

8. A fault-tolerant zipper according to claim 7, characterized in that, A first limiting part (5511) is provided on the first protrusion (551) located at the left end of the top shell (52); A second limiting part (5521) is provided on the second protrusion (552) located at the right end of the bottom shell (51).

9. A fault-tolerant zipper according to claim 8, characterized in that, The export structure (57) includes: The first outlet (571) is located at the rear end of the first protrusion (551) and is used for the first chain tooth (3) to pass through. The second outlet (572) is located at the rear end of the second protrusion (552) and is used for the second chain tooth (4) to pass through.

10. A fault-tolerant zipper according to claim 9, characterized in that, The limiting structure (58) includes: The third limiting part (581) is provided in the pressing structure (56) and located above the end of the first outlet part (571) for limiting the first chain tooth (3); The fourth limiting part (582) is provided in the clamping structure (56) and located below the end of the second outlet part (572) for limiting the second chain tooth (4).

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