Cloth clamping prevention zipper

Abstract

The utility model provides an anti-jamming zipper, which comprises zipper belts and a zipper head, the zipper belts comprise a first zipper belt and a second zipper belt, the first zipper belt comprises a first upper zipper belt and a first lower zipper belt, the second zipper belt comprises a second upper zipper belt and a second lower zipper belt, the zipper head comprises a zipper body, the zipper body is provided with a first layer of lock channel and a second layer of lock channel, and the first layer of lock channel is connected with the zipper head. The second-layer lock channel is located on the lower side of the first-layer lock channel, the upper end of the first-layer lock channel is sequentially provided with a first gap, a first separation plate and a third gap from left to right, and the lower end of the second-layer lock channel is sequentially provided with a second gap, a second separation plate and a fourth gap from left to right; the first layer of lock channel is used for meshing or separating the first upper zipper belt and the second upper zipper belt, the second layer of lock channel is used for meshing or separating the first lower zipper belt and the second lower zipper belt, cloth can be prevented from being clamped into the puller, and normal work of the puller is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of sliders, in particular to an anti-cab zipper. Background Art

[0002] Zippers are a very important auxiliary material used in clothes, bags, tents, and sleeping bags. Zippers open and close the left and right zipper teeth by sliding the slider on the zipper. When the slider slides toward the front of the slider, the left and right chain teeth are closed and locked to combine the fabrics on both sides. When the slider slides toward the back of the slider, the left and right chain teeth are unlocked to open the left and right zipper teeth. During the movement of the slider, the slider contacts the fabrics on both sides. Sometimes the fabric gets stuck in the slider, preventing the normal use of the zipper. This situation is particularly obvious on sleeping bags. On the one hand, the fabric of the sleeping bag is relatively thin, and the fabric is more easily stuck in the slider. On the other hand, since the sleeping bag is relatively long, the probability of the fabric getting stuck in the slider is further increased. Therefore, it is necessary to design a slider and zipper that can prevent the fabric from getting stuck. Utility Model Content

[0003] In view of this, the utility model aims to provide an anti-snagging zipper to solve the problem in the prior art that fabric is easily stuck in the slider, thus preventing the normal use of the zipper.

[0004] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0005] The zipper is provided with a first lock track and a second lock track, the second lock track is located at the lower side of the first lock track, the upper end of the first lock track is provided with a first gap, a first separation plate and a third gap in sequence from left to right, the lower end of the second lock track is provided with a second gap, a second separation plate and a fourth gap in sequence from left to right, the first lock track is used for meshing or separating the first upper chain belt and the second upper chain belt, and the second lock track is used for meshing or separating the first lower chain belt and the second lower chain belt.

[0006] This arrangement can form a closed space between the first upper chain belt, the first lower chain belt and the pull body, and a closed space between the second upper chain belt, the second lower chain belt and the pull body, thereby preventing fabric from getting stuck in the slider and ensuring the normal operation of the slider.

[0007] Furthermore, a partition is arranged between the first separation plate and the second separation plate, and the first separation plate, the partition and the second separation plate are connected together by a separation column, a left enclosure is arranged at the left end of the partition, a first folded edge is arranged at the upper end of the left enclosure, and a second folded edge is arranged at the lower end, the first gap is located between the first folded edge and the first separation plate, and the second gap is located between the second folded edge and the second separation plate, a right enclosure is arranged at the right end of the partition, a third folded edge is arranged at the upper end of the right enclosure, and a fourth folded edge is arranged at the lower end, the third gap is located between the third folded edge and the first separation plate, and the fourth gap is located between the fourth folded edge and the second separation plate; the first folded edge, the first separation plate and the third folded edge constitute a top plate, the second folded edge, the second separation plate and the fourth folded edge constitute a bottom plate, the left enclosure, the top plate, the right enclosure and the partition form a first layer of lock channel, and the left enclosure, the bottom plate, the right enclosure and the partition form a second layer of lock channel.

[0008] This arrangement can enhance the stability and tightness of the cooperation between the chain belt and the slider, and prevent the slider from getting stuck.

[0009] Further, the first upper chain belt includes a first upper chain cloth and a first upper chain tooth connected together, the first lower chain belt includes a first lower chain cloth and a first lower chain tooth connected together, the second upper chain belt includes a second upper chain cloth and a second upper chain tooth connected together, the second lower chain belt includes a second lower chain cloth and a second lower chain tooth connected together, the first upper chain tooth is meshed with the second upper chain tooth, and the first lower chain tooth is meshed with the second lower chain tooth; a first U-shaped folded edge is provided at the right end of the first upper chain cloth, the first upper chain tooth is provided on the first U-shaped folded edge, a second U-shaped folded edge is provided at the right end of the first lower chain cloth, the first lower chain tooth is provided on the second U-shaped folded edge, a third U-shaped folded edge is provided at the left end of the second upper chain cloth, the second upper chain tooth is provided on the third U-shaped folded edge, a fourth U-shaped folded edge is provided at the left end of the second lower chain tooth, and the second lower chain tooth is provided on the fourth U-shaped folded edge.

[0010] By setting the U-shaped folded edge, the movement range of the chain belt in the slider can be limited, preventing the chain belt from falling off or dislocating, and ensuring the normal operation of the zipper.

[0011] Furthermore, the left ends of the first upper chain cloth and the first lower chain cloth are respectively connected to the first cloth, and the right ends of the second upper chain cloth and the second lower chain cloth are respectively connected to the second cloth.

[0012] This arrangement forms a closed space between the first upper chain cloth, the first lower chain cloth, the first fabric and the pull body, and a closed space between the second upper chain cloth, the second fabric, the second lower chain cloth and the pull body, effectively preventing external fabric from entering the lock channel and ensuring the normal movement of the slider.

[0013] Furthermore, the first upper chain cloth and the first lower chain cloth are connected together to form a first chain cloth, and the second upper chain cloth and the second lower chain cloth are connected together to form a second chain cloth.

[0014] This arrangement enables U-shaped folded edges and chain teeth to be provided at both ends of the first chain cloth, thereby simplifying the structure of the chain belt and facilitating processing and production.

[0015] Furthermore, the partition is provided with a guide edge, and the guide edge includes a first guide edge and a second guide edge, the first guide edge is located at the intersection of the separation column and the upper end surface of the partition, and the second guide edge is located at the intersection of the separation column and the lower end surface of the partition, the first guide edge is used to guide the first upper chain tooth and the second upper chain tooth to engage or separate in the first layer of the lock track, and the second guide edge is used to guide the first lower chain tooth and the second lower chain tooth to engage or separate in the second layer of the lock track.

[0016] This arrangement can effectively guide the movement direction of the chain belt in the pull body, and improve the smoothness of movement between the chain belt and the pull body.

[0017] Furthermore, the partition is provided with a convex edge, which includes a first convex edge and a second convex edge. The first convex edge is located at the intersection of the left enclosure and the partition, and the second convex edge is located at the intersection of the right enclosure and the partition. The first convex edge and the second convex edge cooperate to guide the chain belt to move in the pull body.

[0018] This arrangement can enhance the stability of the chain belt in the zipper body and increase the service life of the zipper.

[0019] Furthermore, a first slide groove is provided at the upper end of the left enclosure, and a second slide groove is provided at the lower end, the first slide groove is used to limit the first U-shaped fold, and the second slide groove is used to limit the second U-shaped fold, the third slide groove is provided at the upper end of the right enclosure, and a fourth slide groove is provided at the lower end, the third slide groove is used to limit the third U-shaped fold, and the fourth slide groove is used to limit the fourth U-shaped fold.

[0020] This arrangement can further limit the movement trajectory of the chain belt in the pull body and improve the matching accuracy between the pull body and the chain belt.

[0021] Furthermore, a first ear plate and a first pull tab are provided at the upper end of the pull body, the first ear plate is provided with a first through hole, the first pull tab is provided with a first fixing column, the first fixing column cooperates with the first through hole to fix the first pull tab and the first ear plate together, and a second ear plate and a second pull tab are provided at the lower end of the pull body, the second ear plate is provided with a second through hole, the second pull tab is provided with a second fixing column, the second fixing column cooperates with the second through hole to fix the second pull tab and the second ear plate together.

[0022] By arranging a pull tab on the pull body, it is convenient to operate the pull body for movement.

[0023] Furthermore, the first ear plate is provided with a first avoidance slit, and the first avoidance slit is used for installing the first pull tab. The second ear plate is provided with a second avoidance slit, and the second avoidance slit is used for installing the second pull tab.

[0024] This arrangement facilitates installation or removal of the pull tab.

[0025] Compared with the prior art, the anti-cabra zipper described in the utility model has the following advantages:

[0026] 1) A closed space can be formed between the first upper chain belt, the first lower chain belt and the pull body, and a closed space can be formed between the second upper chain belt, the second lower chain belt and the pull body, so as to prevent the fabric from getting stuck in the slider and ensure the normal operation of the slider;

[0027] 2) It can enhance the stability of the cooperation between the chain belt and the slider to prevent the slider from getting stuck;

[0028] 3) The U-shaped folded edge cooperates with the slide groove to limit the movement range of the chain in the slider, preventing the chain from falling off or dislocating, and ensuring the normal operation of the zipper. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the structure of the slider according to an embodiment of the utility model;

[0030] Figure 2 for Figure 1 Schematic diagram of the structure of the middle slider with the pull tab removed;

[0031] Figure 3 for Figure 2 A schematic diagram of the structure from the second perspective;

[0032] Figure 4 for Figure 2 A schematic diagram of the structure of the third perspective;

[0033] Figure 5 for Figure 2 Schematic diagram of the structure of the fourth perspective;

[0034] Figure 6 for Figure 2 A schematic diagram of the structure of the fifth perspective;

[0035] Figure 7 for Figure 1 A schematic diagram of the structure of the first pull tab;

[0036] Figure 8 It is a schematic diagram of the structure of the pull head and the chain belt;

[0037] Fig. 9 for Figure 8 A schematic diagram of the structure from the second perspective;

[0038] Fig.10for Figure 8 A schematic diagram of the structure of the third perspective;

[0039] Fig.11 This is a schematic diagram of the second structure of the chain belt described in the embodiment of the utility model.

[0040] Description of reference numerals:

[0041] 1. Chain belt; 11. First chain belt; 1101. First chain cloth; 1102. Second chain cloth; 111. First upper chain belt; 1111. First upper chain cloth; 1112. First upper chain tooth; 1113. First U-shaped fold; 112. First lower chain belt; 1121. First lower chain cloth; 1122. First lower chain tooth; 1123. Second U-shaped fold; 12. Second chain belt; 121. Second upper chain belt; 1211. Second upper chain cloth; 1212. Second upper chain tooth; 1213. Third U-shaped fold; 122. Second lower chain belt; 1221. Second lower chain cloth; 1222. Second lower chain tooth; 1223. Fourth U-shaped fold; 2. Pull head; 21. Pull body; 201. First layer lock track; 202. Second layer lock track; 211. First separation plate; 212. Second separation plate; 2 13. partition; 214. separation column; 221. first ear plate; 2211. first avoidance gap; 222. second ear plate; 2221. second avoidance gap; 31. left enclosure; 301. top plate; 302. bottom plate; 311. first folded edge; 312. second folded edge; 32. right enclosure; 323. third folded edge; 324. fourth folded edge; 41. first gap; 42. second gap; 43. third gap; 44. fourth gap; 51. first fabric; 52. second fabric; 6. guide edge; 61. first guide edge; 62. second guide edge; 7. convex edge; 71. first convex edge; 72. second convex edge; 81. first slide groove; 82. second slide groove; 83. third slide groove; 84. fourth slide groove; 91. first pull tab; 910. first fixing column; 92. second pull tab. DETAILED DESCRIPTION

[0042] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0043] Example 1

[0044] like Figure 1-11As shown, an anti-cabra zipper includes a chain belt 1 and a slider 2, wherein the chain belt 1 includes a first chain belt 11 and a second chain belt 12, wherein the first chain belt 11 includes a first upper chain belt 111 and a first lower chain belt 112, and the second chain belt 12 includes a second upper chain belt 121 and a second lower chain belt 122, and the slider 2 includes a pull body 21, wherein the pull body 21 is provided with a first layer of lock track 201 and a second layer of lock track 202, wherein the second layer of lock track 202 is located at the lower side of the first layer of lock track 201, and the second layer of lock track 202 is located at the lower side of the first layer of lock track 201. The upper end of the first layer lock track 201 is provided with a first gap 41, a first separation plate 211 and a third gap 43 from left to right, and the lower end of the second layer lock track 202 is provided with a second gap 42, a second separation plate 212 and a fourth gap 44 from left to right. The first layer lock track 201 is used for the engagement or separation between the first upper chain belt 111 and the second upper chain belt 121, and the second layer lock track 202 is used for the engagement or separation between the first lower chain belt 112 and the second lower chain belt 122.

[0045] The present application sets a first gap 41 and a third gap 43 at the upper end of the pull body 21, and sets a second gap 42 and a fourth gap 44 at the lower end of the pull body 21, and the rear ends of the first separation plate 211 and the second separation plate 212 are set to be triangles. When the first upper chain belt 111 and the second upper chain belt 121 are engaged or separated in the first layer lock track 201, and the first lower chain belt 112 and the second lower chain belt 122 are engaged or separated in the second layer lock track 202, the first upper chain belt 111 and the second upper chain belt 121 are respectively in close contact with the first separation plate 211, and the first lower chain belt 112 and the second lower chain belt 122 are respectively in close contact with the second separation plate 212. This setting can form a closed space between the first upper chain belt 111, the first lower chain belt 112 and the pull body 21, and a closed space is formed between the second upper chain belt 121, the second lower chain belt 122 and the pull body 21, so as to prevent the cloth from being stuck in the slider 2 and ensure the normal operation of the slider 2.

[0046] As a preferred example of the present invention, a partition 213 is provided between the first separation plate 211 and the second separation plate 212, and the first separation plate 211, the partition 213 and the second separation plate 212 are connected together by a separation column 214, and a left enclosure 31 is provided at the left end of the partition 213, a first folded edge 311 is provided at the upper end of the left enclosure 31, and a second folded edge 312 is provided at the lower end, the first gap 41 is located between the first folded edge 311 and the first separation plate 211, and the second gap 42 is located between the second folded edge 312 and the second separation plate 212, and a right enclosure 32 is provided at the right end of the partition 213, and the upper end of the right enclosure 32 A third folded edge 323 is provided, and a fourth folded edge 324 is provided at the lower end, the third gap 43 is located between the third folded edge 323 and the first separation plate 211, and the fourth gap 44 is located between the fourth folded edge 324 and the second separation plate 212; the first folded edge 311, the first separation plate 211 and the third folded edge 323 constitute the top plate 301, the second folded edge 312, the second separation plate 212 and the fourth folded edge 324 constitute the bottom plate 302, the left enclosure 31, the top plate 301, the right enclosure 32 and the partition 213 are arranged to form a first layer of lock channel 201, and the left enclosure 31, the bottom plate 302, the right enclosure 32 and the partition 213 are arranged to form a second layer of lock channel 202.

[0047] Specifically, this arrangement can enhance the stability and tightness of the cooperation between the chain belt 1 and the slider 2 and prevent the slider 2 from getting stuck.

[0048] As a preferred example of the present invention, the first upper chain belt 111 includes a first upper chain cloth 1111 and a first upper chain tooth 1112 connected together, the first lower chain belt 112 includes a first lower chain cloth 1121 and a first lower chain tooth 1122 connected together, the second upper chain belt 121 includes a second upper chain cloth 1211 and a second upper chain tooth 1212 connected together, the second lower chain belt 122 includes a second lower chain cloth 1221 and a second lower chain tooth 1222 connected together, the first upper chain tooth 1112 is meshed with the second upper chain tooth 1212, and the first lower chain tooth 1122 is meshed with the second lower chain tooth 1222 2; the right end of the first upper chain cloth 1111 is provided with a first U-shaped folded edge 1113, the first upper chain tooth 1112 is provided on the first U-shaped folded edge 1113, the right end of the first lower chain cloth 1121 is provided with a second U-shaped folded edge 1123, the first lower chain tooth 1122 is provided on the second U-shaped folded edge 1123, the left end of the second upper chain cloth 1211 is provided with a third U-shaped folded edge 1213, the second upper chain tooth 1212 is provided on the third U-shaped folded edge 1213, the left end of the second lower chain tooth 1222 is provided with a fourth U-shaped folded edge 1223, and the second lower chain tooth 1222 is provided on the fourth U-shaped folded edge 1223.

[0049] Specifically, by providing a U-shaped folded edge, the movement range of the chain belt 1 in the slider 2 can be limited, thereby preventing the chain belt 1 from falling off or being misplaced, thereby ensuring the normal operation of the zipper.

[0050] As a preferred example of the present invention, the left ends of the first upper chain cloth 1111 and the first lower chain cloth 1121 are respectively connected to the first fabric 51 , and the right ends of the second upper chain cloth 1211 and the second lower chain cloth 1221 are respectively connected to the second fabric 52 .

[0051] Specifically, this arrangement forms a closed space between the first upper chain cloth 1111, the first lower chain cloth 1121, the first fabric 51 and the pull body 21, and forms a closed space between the second upper chain cloth 1211, the second fabric 52, the second lower chain cloth 1221 and the pull body 21, effectively preventing external fabric from entering the lock track and ensuring the normal movement of the slider 2.

[0052] As a preferred example of the present invention, the first upper chain cloth 1111 and the first lower chain cloth 1121 are connected together to form a first chain cloth 1101 , and the second upper chain cloth 1211 and the second lower chain cloth 1221 are connected together to form a second chain cloth 1102 .

[0053] Specifically, this arrangement can provide U-shaped folded edges and chain teeth at both ends of the first chain cloth 1101, thereby simplifying the structure of the chain belt 1 and facilitating processing and production.

[0054] As a preferred example of the present utility model, the partition 213 is provided with a guide edge 6, and the guide edge 6 includes a first guide edge 61 and a second guide edge 62. The first guide edge 61 is located at the intersection of the separation column 214 and the upper end surface of the partition 213, and the second guide edge 62 is located at the intersection of the separation column 214 and the lower end surface of the partition 213. The first guide edge 61 is used to guide the first upper chain tooth 1112 and the second upper chain tooth 1212 to engage or separate in the first layer of the lock track 201, and the second guide edge 62 is used to guide the first lower chain tooth 1122 and the second lower chain tooth 1222 to engage or separate in the second layer of the lock track 202.

[0055] Specifically, this arrangement can effectively guide the movement direction of the chain belt 1 in the pull body 21 , thereby improving the smoothness of movement between the chain belt 1 and the pull body 21 .

[0056] As a preferred example of the present utility model, the partition 213 is provided with a flange 7, and the flange 7 includes a first flange 71 and a second flange 72, the first flange 71 is located at the intersection of the left enclosure 31 and the partition 213, and the second flange 72 is located at the intersection of the right enclosure 32 and the partition 213, and the first flange 71 and the second flange 72 cooperate to guide the chain belt 1 to move in the pull body 21.

[0057] Specifically, this arrangement can enhance the stability of the chain belt 1 in the slider body 21 and increase the service life of the zipper.

[0058] As a preferred example of the present utility model, the upper end of the left enclosure 31 is provided with a first slide groove 81, and the lower end is provided with a second slide groove 82, the first slide groove 81 is used to limit the first U-shaped folded edge 1113, and the second slide groove 82 is used to limit the second U-shaped folded edge 1123, the upper end of the right enclosure 32 is provided with a third slide groove 83, and the lower end is provided with a fourth slide groove 84, the third slide groove 83 is used to limit the third U-shaped folded edge 1213, and the fourth slide groove 84 is used to limit the fourth U-shaped folded edge 1223.

[0059] Specifically, this arrangement can further limit the movement trajectory of the chain belt 1 in the pull body 21 , thereby improving the matching accuracy between the pull body 21 and the chain belt 1 .

[0060] As a preferred example of the present utility model, the upper end of the pull body 21 is provided with a first ear plate 221 and a first pull tab 91, the first ear plate 221 is provided with a first through hole, the first pull tab 91 is provided with a first fixing column 910, the first fixing column 910 cooperates with the first through hole to fix the first pull tab 91 and the first ear plate 221 together, the lower end of the pull body 21 is provided with a second ear plate 222 and a second pull tab 92, the second ear plate 222 is provided with a second through hole, the second pull tab 92 is provided with a second fixing column, the second fixing column cooperates with the second through hole to fix the second pull tab 92 and the second ear plate 222 together.

[0061] Specifically, by providing a pull tab on the pull body 21 , it is convenient to operate the pull body 21 to move.

[0062] As a preferred example of the present invention, the first ear plate 221 is provided with a first avoidance slit 2211, which is used for installing the first pull tab 91, and the second ear plate 222 is provided with a second avoidance slit 2221, which is used for installing the second pull tab 92.

[0063] Specifically, this arrangement facilitates installation or removal of the pull tab.

[0064] In summary, the anti-cabbing zipper described in the present application has the following advantages: 1) It can form a closed space between the first upper chain belt 111, the first lower chain belt 112 and the pull body 21, and a closed space between the second upper chain belt 121, the second lower chain belt 122 and the pull body 21, to prevent the fabric from getting stuck in the slider 2, thereby ensuring the normal operation of the slider 2; 2) It can enhance the stability of the cooperation between the chain belt 1 and the slider 2, to prevent the slider 2 from getting stuck; 3) The U-shaped folded edge cooperates with the slide groove to limit the movement range of the chain belt 1 in the slider 2, to prevent the chain belt 1 from falling off or misaligned, and to ensure the normal operation of the zipper.

[0065] Although the utility model is disclosed as above, the utility model is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the utility model. Therefore, the protection scope of the utility model shall be subject to the scope defined by the claims.

Claims

1. An anti-cabra zipper, comprising a chain belt (1) and a slider (2), wherein the chain belt (1) comprises a first chain belt (11) and a second chain belt (12), wherein the first chain belt (11) comprises a first upper chain belt (111) and a first lower chain belt (112), and the second chain belt (12) comprises a second upper chain belt (121) and a second lower chain belt (122), and the slider (2) comprises a slider body (21), characterized in that: The pull body (21) is provided with a first layer lock track (201) and a second layer lock track (202), the second layer lock track (202) is located at the lower side of the first layer lock track (201), the upper end of the first layer lock track (201) is provided with a first gap (41), a first separation plate (211) and a third gap (43) in sequence from left to right, the lower end of the second layer lock track (202) is provided with a second gap (42), a second separation plate (212) and a fourth gap (44) in sequence from left to right, the first layer lock track (201) is used for engagement or separation between the first upper chain belt (111) and the second upper chain belt (121), and the second layer lock track (202) is used for engagement or separation between the first lower chain belt (112) and the second lower chain belt (122).

2. The anti-cabra zipper according to claim 1, characterized in that: A partition (213) is provided between the first separation plate (211) and the second separation plate (212); the first separation plate (211), the partition (213) and the second separation plate (212) are connected together via a separation column (214); a left enclosure (31) is provided at the left end of the partition (213); a first folded edge (311) is provided at the upper end of the left enclosure (31); and a second folded edge (312) is provided at the lower end; the first gap (41) is located between the first folded edge (311) and the first separation plate (211); the second gap (42) is located between the second folded edge (312) and the second separation plate (212); a right enclosure (32) is provided at the right end of the partition (213); and a third folded edge (323) is provided at the upper end of the right enclosure (32). , a fourth folded edge (324) is provided at the lower end, the third gap (43) is located between the third folded edge (323) and the first separation plate (211), and the fourth gap (44) is located between the fourth folded edge (324) and the second separation plate (212); the first folded edge (311), the first separation plate (211) and the third folded edge (323) form a top plate (301), the second folded edge (312), the second separation plate (212) and the fourth folded edge (324) form a bottom plate (302), the left enclosure (31), the top plate (301), the right enclosure (32) and the partition (213) are arranged to form a first layer of lock track (201), and the left enclosure (31), the bottom plate (302), the right enclosure (32) and the partition (213) are arranged to form a second layer of lock track (202).

3. The anti-cabra zipper according to claim 2, characterized in that: The first upper chain belt (111) includes a first upper chain cloth (1111) and a first upper chain tooth (1112) connected together, the first lower chain belt (112) includes a first lower chain cloth (1121) and a first lower chain tooth (1122) connected together, the second upper chain belt (121) includes a second upper chain cloth (1211) and a second upper chain tooth (1212) connected together, the second lower chain belt (122) includes a second lower chain cloth (1221) and a second lower chain tooth (1222) connected together, the first upper chain tooth (1112) is meshed with the second upper chain tooth (1212), and the first lower chain tooth (1122) is meshed with the second lower chain tooth (1222); A first U-shaped folded edge (1113) is arranged at the right end of the first upper chain cloth (1111), and the first upper chain tooth (1112) is arranged on the first U-shaped folded edge (1113); a second U-shaped folded edge (1123) is arranged at the right end of the first lower chain cloth (1121), and the first lower chain tooth (1122) is arranged on the second U-shaped folded edge (1123); a third U-shaped folded edge (1213) is arranged at the left end of the second upper chain cloth (1211), and the second upper chain tooth (1212) is arranged on the third U-shaped folded edge (1213); a fourth U-shaped folded edge (1223) is arranged at the left end of the second lower chain tooth (1222), and the second lower chain tooth (1222) is arranged on the fourth U-shaped folded edge (1223).

4. The anti-cabra zipper according to claim 3, characterized in that: The left ends of the first upper chain cloth (1111) and the first lower chain cloth (1121) are respectively connected to the first cloth (51), and the right ends of the second upper chain cloth (1211) and the second lower chain cloth (1221) are respectively connected to the second cloth (52).

5. The anti-cabra zipper according to claim 3, characterized in that: The first upper chain cloth (1111) and the first lower chain cloth (1121) are connected together to form a first chain cloth (1101), and the second upper chain cloth (1211) and the second lower chain cloth (1221) are connected together to form a second chain cloth (1102).

6. The anti-cabra zipper according to claim 3, characterized in that: The partition (213) is provided with a guide edge (6), and the guide edge (6) includes a first guide edge (61) and a second guide edge (62). The first guide edge (61) is located at the intersection of the separation column (214) and the upper end surface of the partition (213), and the second guide edge (62) is located at the intersection of the separation column (214) and the lower end surface of the partition (213). The first guide edge (61) is used to guide the first upper chain tooth (1112) and the second upper chain tooth (1212) to engage or separate in the first layer of the lock track (201), and the second guide edge (62) is used to guide the first lower chain tooth (1122) and the second lower chain tooth (1222) to engage or separate in the second layer of the lock track (202).

7. The anti-cabra zipper according to claim 2, characterized in that: The partition (213) is provided with a convex edge (7), and the convex edge (7) includes a first convex edge (71) and a second convex edge (72), the first convex edge (71) is located at the intersection of the left enclosure (31) and the partition (213), and the second convex edge (72) is located at the intersection of the right enclosure (32) and the partition (213), and the first convex edge (71) and the second convex edge (72) cooperate to guide the chain belt (1) to move in the pull body (21).

8. The anti-cabra zipper according to claim 2, characterized in that: The upper end of the left enclosure (31) is provided with a first slide groove (81), and the lower end is provided with a second slide groove (82), the first slide groove (81) is used to limit the first U-shaped folding edge (1113), and the second slide groove (82) is used to limit the second U-shaped folding edge (1123), the upper end of the right enclosure (32) is provided with a third slide groove (83), and the lower end is provided with a fourth slide groove (84), the third slide groove (83) is used to limit the third U-shaped folding edge (1213), and the fourth slide groove (84) is used to limit the fourth U-shaped folding edge (1223).

9. The anti-cabra zipper according to claim 1, characterized in that: The upper end of the pull body (21) is provided with a first ear plate (221) and a first pull tab (91), the first ear plate (221) is provided with a first through hole, the first pull tab (91) is provided with a first fixing column (910), the first fixing column (910) cooperates with the first through hole to fix the first pull tab (91) and the first ear plate (221) together, the lower end of the pull body (21) is provided with a second ear plate (222) and a second pull tab (92), the second ear plate (222) is provided with a second through hole, the second pull tab (92) is provided with a second fixing column, the second fixing column cooperates with the second through hole to fix the second pull tab (92) and the second ear plate (222) together.

10. The anti-cabra zipper according to claim 9, characterized in that: The first ear plate (221) is provided with a first avoidance slit (2211), and the first avoidance slit (2211) is used for installing the first pull tab (91); the second ear plate (222) is provided with a second avoidance slit (2221), and the second avoidance slit (2221) is used for installing the second pull tab (92).

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