Novel hidden explosion-proof nylon zipper

Abstract

The utility model discloses a novel hidden type explosion-proof nylon zipper, which relates to the field of zippers, and comprises an edge sealing strip, a folding cloth belt I, a folding cloth belt II, a connecting strip I, zipper teeth, a connecting strip II and a zipper head, one side of the folding cloth belt I is sewn on the surface of the connecting strip I, one side of the folding cloth belt II is sewn on the surface of the connecting strip II, and the zipper head is connected with the zipper teeth. The number of the zipper teeth is two. According to the zipper, the first folding cloth belt and the second folding cloth belt are used in cooperation, after the zipper teeth connected to the first connecting strip and the second connecting strip are pulled and closed by the zipper head, the first folding cloth belt and the second folding cloth belt are folded on the zipper teeth in a staggered mode, and therefore the surfaces of the zipper head and the zipper teeth are hidden through the first folding cloth belt and the second folding cloth belt which are staggered. Exterior anti-explosion protection is achieved in the using process, a pen point and a needle point need to be used for bursting a bag through the design that the zipper head and the zipper teeth are hidden, the zipper on a backpack cannot be taken down, and the problem that zipper teeth of an old anti-explosion nylon zipper are prone to swinging is solved through the design of the single-layer zipper teeth.

Description

Technical Field

[0001] The utility model relates to the technical field of zippers, in particular to a novel hidden explosion-proof nylon zipper. Background Art

[0002] A zipper is a connector used to connect two pieces of cloth or other materials. They can be connected or separated by pulling the gears on both sides of the zipper head. Zippers are usually used to make openings and pockets of clothes, bags, shoes and other items, which are convenient for users to quickly open or close. Zippers are divided into different materials and types such as metal zippers, nylon zippers, and plastic zippers. They are widely used in daily life and industrial manufacturing of clothing, bags, tents, etc.

[0003] In the prior art, for example, a Chinese patent (patent announcement number: CN203446717U) discloses a nylon double-bone chain tooth explosion-proof zipper, comprising: a pair of cloth tapes, the pair of cloth tapes are arranged in parallel and opposite to each other; two groups of zipper strips, the zipper strips are composed of an upper zipper strip and a lower zipper strip; the upper zipper strip and the lower zipper strip are respectively arranged on the front and back sides of the cloth tape; a plurality of zipper tails, each zipper tail is respectively arranged at both ends of the upper zipper strip and the lower zipper strip; a pull head, the pull head is arranged between the two groups of zipper strips. The upper zipper strip and the lower zipper strip of the zipper strip group on the same cloth tape are formed in one step using monofilament and middle core yarn.

[0004] At present, the existing explosion-proof nylon zipper is made of double-layer chain teeth with a cloth tape in the middle. Due to the protection of the double-layer chain teeth, it is difficult to break (pierce) the zipper on the bag or backpack with a pen tip or a needle tip. However, the double-layer chain teeth of the existing explosion-proof nylon zipper are fixed by only four upper threads and two lower threads. After being sewn on the bag or backpack, the upper and lower chain teeth are easy to swing in daily use, especially at the corner position. It is difficult to pull the zipper head, which easily causes the zipper head to get stuck on the chain teeth, affecting the normal opening or closing of the zipper. Utility Model Content

[0005] The utility model aims to provide a novel hidden explosion-proof nylon zipper to solve the problem that the double-layer chain teeth of the existing explosion-proof nylon zipper proposed in the above background technology are fixed by only four surface threads and two bottom threads. After being sewn on bags and backpacks, the upper and lower chain teeth are easy to swing in daily use, especially at the corner position, it is difficult to pull the zipper head, which easily causes the zipper head to get stuck on the chain teeth, affecting the normal opening or closing of the zipper.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a novel hidden explosion-proof nylon zipper, comprising an edge banding strip, a folded cloth tape one, a folded cloth tape two, a connecting strip one, chain teeth, a connecting strip two and a zipper head, one side of the folded cloth tape one is sewn to the surface of the connecting strip one, one side of the folded cloth tape two is sewn to the surface of the connecting strip two, two chain teeth are provided, and the two chain teeth are respectively fixedly connected to one side of the connecting strip one and the connecting strip two, two edge banding strips are provided, one of the edge banding strips is covered on the outside of the sewn edge of the folded cloth tape one and the connecting strip one, and the other edge banding strip is covered on the outside of the sewn edge of the folded cloth tape two and the connecting strip two, the zipper head is installed on the outer wall of the chain teeth, and the unsewn parts of the folded cloth tape one and the folded cloth tape two are cross-stacked above the zipper head to shield and hide the zipper head and the chain teeth.

[0007] Preferably, an inner baffle strip is provided below the zipper head, and one side of the inner baffle strip is sewn and connected to the outer wall of the edge banding strip. Through the provision of the inner baffle strip, after the zipper head is pulled to close the chain teeth, the connecting gap of the chain teeth is blocked, thereby effectively preventing the entry of external dust or rainwater, thereby improving the sealing performance of the utility model and having a better protective effect.

[0008] Preferably, the top and bottom surfaces of the connecting strip one and the connecting strip two are provided with limiting rubber strips, and the top surface of the limiting rubber strip is provided with a fixed pressure strip, and the fixed pressure strip is sewn and connected to the outer walls of the connecting strip one and the connecting strip two. The limiting rubber strips are used to limit and guide the two sides of the zipper head, so that the zipper head is not prone to shaking and swinging during the pulling process, thereby improving the smoothness of opening or closing of the utility model.

[0009] Preferably, a movable hole is formed through the top of the zipper head, the inner wall of the movable hole is movably connected with a traction ring, and one end of the traction ring is movably connected with a pull plate, so that the user can pull the zipper head on the chain teeth to open or close the chain teeth.

[0010] Preferably, a movable groove is formed on the lower outer wall of the zipper head, the inner wall top and bottom surfaces of the movable groove are fixedly connected to a limit plate, the inner wall top surface of the movable groove is fixedly connected to a pressure guide plate, and the pressure guide plate is arranged at one end of the limit plate.

[0011] Preferably, a slot is provided on the inner wall of the movable hole, and a protrusion is fixedly connected to the inner wall of the slot. By coordinating the arrangement of the slot and the protrusion, the user can snap the traction ring into the slot for fixation, thereby preventing external force from accidentally pulling the zipper head and separating the chain teeth.

[0012] Preferably, a telescopic groove is provided inside the movable hole, the interior of the telescopic groove is connected with the interior of the movable groove, and a spring sheet is provided inside the telescopic groove, so that after the chain teeth are pulled closed by the zipper head, the gap of the chain teeth can be engaged and limited by the locking teeth, thereby realizing self-locking of the zipper head on the chain teeth.

[0013] Preferably, one end of the spring sheet is fixedly connected to a fixing block, and the other end of the spring sheet is fixedly connected to a locking tooth.

[0014] Preferably, a spring is fixedly connected between one end of the elastic sheet and the inner wall of the telescopic slot.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. In the utility model, by using the folded cloth tape 1 and the folded cloth tape 2 in coordination, after the zipper head is pulled and closed, the folded cloth tape 1 and the folded cloth tape 2 are staggered on the sprockets, so that the zipper head and the sprocket surface are hidden by the staggered folded cloth tape 1 and the folded cloth tape 2, so as to realize the explosion-proof protection to the outside during use. The hidden design of the zipper head and the sprocket makes it impossible to break the zipper on the bag or backpack with a pen tip or a needle tip. The single-layer sprocket design solves the problem that the sprocket teeth of the old explosion-proof nylon zipper are easy to swing.

[0017] 2. In the present invention, by setting the inner baffle, after the zipper head is pulled to close the chain teeth, the inner baffle forms a V-shaped accommodating space on the inner side of the chain teeth, thereby blocking the connecting gap of the chain teeth, thereby effectively preventing the entry of external dust or rainwater, thereby improving the sealing of the present invention and having a better protective effect. The limiting rubber strip is used to limit and guide the two sides of the zipper head, so that the zipper head is not easy to shake or swing during the pulling process, thereby improving the smoothness of the opening or closing of the present invention.

[0018] 3. In the present invention, by utilizing the arrangement of latch teeth, spring sheets, fixing blocks and springs, the sprocket teeth can be engaged and limited with the latch teeth at the gap of the sprocket teeth after the zipper head is pulled closed, thereby realizing the self-locking of the zipper head on the sprocket teeth. With the arrangement of the latch groove and the protrusion, the user can engage the traction ring into the inside of the latch groove for fixing, thereby preventing the zipper head from being pulled accidentally by external force to separate the sprocket teeth, thereby enhancing the safety and protection of the present invention and preventing theft or damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the closed structure of the new hidden explosion-proof nylon zipper of the utility model;

[0020] Figure 2 This is a schematic diagram of the unfolded structure of the new type of hidden explosion-proof nylon zipper of the utility model;

[0021] Figure 3 This is a side view structural diagram of the new type of hidden explosion-proof nylon zipper of the utility model;

[0022] Figure 4 The utility model is a new type of hidden explosion-proof nylon zipper Figure 3 A magnified view of the structure at center;

[0023] Figure 5 This is a structural schematic diagram of a new type of hidden explosion-proof nylon zipper puller of the utility model;

[0024] Figure 6 This is a schematic diagram of the internal structure of the new type of hidden explosion-proof nylon zipper puller of the utility model;

[0025] Figure 7 The utility model is a new type of hidden explosion-proof nylon zipper Figure 6 Enlarged view of the structure at point B in the middle.

[0026] In the figure: 1. edge banding; 2. folding cloth tape 1; 3. folding cloth tape 2; 4. connecting strip 1; 41. limiting rubber strip; 42. fixed pressure strip; 5. chain tooth; 6. connecting strip 2; 7. zipper head; 71. traction ring; 72. pull plate; 73. movable hole; 731. slot; 732. convex block; 74. movable slot; 75. limiting plate; 76. pressure guide plate; 77. latch tooth; 771. spring piece; 772. fixed block; 773. spring; 78. telescopic slot; 8. inner stop strip. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the implementation regulations described are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Embodiment 1

[0029] Reference Figure 1-7As shown: a new type of hidden explosion-proof nylon zipper, comprising an edge strip 1, a folded cloth tape 1 2, a folded cloth tape 2 3, a connecting strip 1 4, a chain tooth 5, a connecting strip 2 6 and a zipper head 7, one side of the folded cloth tape 1 2 is sewn to the surface of the connecting strip 1 4, one side of the folded cloth tape 2 3 is sewn to the surface of the connecting strip 2 6, two chain teeth 5 are provided, and the two chain teeth 5 are fixedly connected to one side of the connecting strip 1 4 and the connecting strip 2 6 respectively, two edge strips 1 are provided, one of which is covered on the outside of the sewn edge of the folded cloth tape 1 2 and the connecting strip 1 4, and the other edge strip 1 is covered on the outside of the sewn edge of the folded cloth tape 2 3 and the connecting strip 2 6, the zipper head 7 is installed on the outer wall of the chain tooth 5, and the unsewn parts of the folded cloth tape 1 2 and the folded cloth tape 2 3 are cross-stacked above the zipper head 7 to shield and hide the zipper head 7 and the chain teeth 5.

[0030] In this embodiment, by sewing the edges of the folded cloth tape 2 and the connecting strip 4, and coordinating the sewing of the edges of the folded cloth tape 2 3 and the connecting strip 2 6, the sprockets 5 connected to the connecting strips 1 4 and 26 are made to be staggered and folded on the sprockets 5 after the zipper head 7 is pulled closed. The staggered folded cloth tapes 1 2 and folded cloth tapes 2 3 are used to hide the surfaces of the zipper head 7 and the sprockets 5, so as to achieve explosion-proof protection to the outside during use. The hidden design of the zipper head 7 and the sprockets 5 makes it impossible to use a pen tip or a needle tip to break through the zipper on a bag or backpack. The single-layer sprocket 5 design prevents the zipper sprockets 5 from swinging easily. The edge sealing strip 1 is used to seal the sewn edges of the folded cloth tape 2 and the folded cloth tape 2 3, so as to improve the stability of the edge sewing connection.

[0031] Embodiment 2

[0032] Figure 3 and Figure 4 As shown, an inner stop strip 8 is provided below the zipper head 7, one side of the inner stop strip 8 is sewn to the outer wall of the edge banding strip 1, the top and bottom surfaces of the connecting strip 1 4 and the connecting strip 2 6 are provided with limiting rubber strips 41, the top surface of the limiting rubber strip 41 is provided with a fixed pressure strip 42, and the fixed pressure strip 42 is sewn to the outer walls of the connecting strip 1 4 and the connecting strip 2 6.

[0033] In this embodiment, by setting the inner stop strip 8, after the zipper head 7 is pulled to close the chain teeth 5, the inner stop strip 8 forms a accommodating space with a V-shaped cross-section on the inner side of the chain teeth 5, blocking the connecting gap of the chain teeth 5, thereby effectively preventing the entry of external dust or rainwater, thereby improving the sealing performance of the utility model and having a better protective effect. By sewing a limiting rubber strip 41 on the surface of the connecting strip 1 4 and the connecting strip 2 6, the limiting rubber strip 41 is used to limit and guide the two sides of the zipper head 7, so that the zipper head 7 is not easy to shake and swing during the pulling process, thereby improving the smoothness of the opening or closing of the utility model.

[0034] Embodiment 3

[0035] according to Figure 2 , Figure 5 , Figure 6 and Figure 7 As shown, a movable hole 73 is formed through the top of the zipper head 7, and a traction ring 71 is movably connected to the inner wall of the movable hole 73, and a pull plate 72 is movably connected to one end of the traction ring 71. A movable groove 74 is formed on the lower outer wall of the zipper head 7, and the top and bottom surfaces of the inner wall of the movable groove 74 are fixedly connected to a limiting plate 75, and a pressure guide plate 76 is fixedly connected to the top surface of the inner wall of the movable groove 74. The pressure guide plate 76 is arranged at one end of the limiting plate 75, and a clamping groove 731 is formed on the inner wall of the movable hole 73, and a protrusion 732 is fixedly connected to the inner wall of the clamping groove 731. A telescopic groove 78 is formed inside the movable hole 73, and the interior of the telescopic groove 78 is connected to the interior of the movable groove 74. A spring 771 is arranged inside the telescopic groove 78, and one end of the spring 771 is fixedly connected to a fixed block 772, and the other end of the spring 771 is fixedly connected to a clamping tooth 77, and a spring 773 is fixedly connected between one end of the spring 771 and the inner wall of the telescopic groove 78.

[0036] In this embodiment, the setting of the traction ring 71 and the pull plate 72 makes it convenient for the user to pull the zipper head 7 on the chain teeth 5 to realize the opening or closing operation of the chain teeth 5. The setting of the latching teeth 77, the spring piece 771, the fixing block 772 and the spring 773 allows the chain teeth 5 to use the latching teeth 77 to engage and limit the gap of the chain teeth 5 after being pulled and closed by the zipper head 7, thereby realizing the self-locking of the zipper head 7 on the chain teeth 5. When the zipper head 7 is pulled open, the traction ring 71 presses the fixing block 772 in the movable hole 73, so that the latching teeth 77 are squeezed and lifted at the edge of the telescopic groove 78 to separate from the chain teeth 5. By coordinating the setting of the latching groove 731 and the protrusion 732, the user can engage the traction ring 71 into the inside of the latching groove 731 to fix it, thereby avoiding the accidental contact of the external force to pull the zipper head 7 to separate the chain teeth 5, so as to enhance the safety and protection of the utility model and prevent theft or damage.

[0037] The use method and working principle of the device are as follows: by sewing the edges of the folded cloth tape 1 2 and the connecting strip 1 4, and coordinating the sewing of the edges of the folded cloth tape 2 3 and the connecting strip 2 6, after the zipper head 7 is pulled closed, the folded cloth tape 1 2 and the folded cloth tape 2 3 are staggered on the chain teeth 5, so that the zipper head 7 and the surface of the chain teeth 5 are hidden by the staggered folded cloth tape 1 2 and the folded cloth tape 2 3, and the sewn edges of the folded cloth tape 1 2 and the folded cloth tape 2 3 are sealed by the edge sealing strip 1, so as to improve the connection stability of the edge sewing, and by setting the inner stop strip 8, after the zipper head 7 is pulled to close the chain teeth 5, the inner stop strip 8 forms a V-shaped accommodating space on the inner side of the chain teeth 5, which is similar to the cross section of the chain teeth. The connecting gap of the zipper head 7 is blocked, and the limiting rubber strip 41 is used to limit and guide the two sides of the zipper head 7, so that the zipper head 7 is not easy to shake and swing during the pulling process. The setting of the traction ring 71 and the pull plate 72 is convenient for the user to pull the zipper head 7 on the chain tooth 5 to realize the opening or closing operation of the chain tooth 5. The setting of the latch tooth 77, the spring piece 771, the fixed block 772 and the spring 773 makes it possible for the chain tooth 5 to be engaged and limited with the gap of the chain tooth 5 after the zipper head 7 is pulled and closed by the zipper head 7, so as to realize the self-locking of the zipper head 7 on the chain tooth 5. When pulling open, the traction ring 71 presses the fixed block 772 in the movable hole 73, so that the latch tooth 77 is squeezed and lifted at the edge of the telescopic groove 78 to separate from the chain tooth 5.

[0038] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. New hidden explosion-proof nylon zipper, characterized by: The invention comprises an edge band (1), a folded cloth tape (2), a folded cloth tape (3), a connecting strip (4), a chain tooth (5), a connecting strip (6) and a zipper head (7), wherein one side of the folded cloth tape (2) is sewn to the surface of the connecting strip (4), one side of the folded cloth tape (3) is sewn to the surface of the connecting strip (6), two chain teeth (5) are provided, and the two chain teeth (5) are respectively fixedly connected to one side of the connecting strip (4) and the connecting strip (6), and the edge band (1) is provided with a plurality of chain teeth (5). ) are provided with two edge bands, one of which is covered on the outside of the stitched edge between the folded cloth tape one (2) and the connecting strip one (4), and the other edge band (1) is covered on the outside of the stitched edge between the folded cloth tape two (3) and the connecting strip two (6), the zipper head (7) is mounted on the outer wall of the chain teeth (5), and the unstitched parts of the folded cloth tape one (2) and the folded cloth tape two (3) are cross-stacked above the zipper head (7) to cover and hide the zipper head (7) and the chain teeth (5).

2. The novel hidden explosion-proof nylon zipper according to claim 1 is characterized in that: An inner stop strip (8) is arranged below the zipper head (7), and one side of the inner stop strip (8) is sewn to the outer wall of the edge banding strip (1).

3. The novel hidden explosion-proof nylon zipper according to claim 1 is characterized in that: The top and bottom surfaces of the connecting strip 1 (4) and the connecting strip 2 (6) are both provided with limiting rubber strips (41), and the top surface of the limiting rubber strip (41) is provided with a fixing pressure strip (42), and the fixing pressure strip (42) is sutured and connected to the outer walls of the connecting strip 1 (4) and the connecting strip 2 (6).

4. The novel hidden explosion-proof nylon zipper according to claim 1 is characterized in that: A movable hole (73) is formed through the top of the zipper head (7), the inner wall of the movable hole (73) is movably connected to a traction ring (71), and one end of the traction ring (71) is movably connected to a pull plate (72).

5. The novel hidden explosion-proof nylon zipper according to claim 4 is characterized in that: The lower outer wall of the zipper head (7) is provided with a movable groove (74), the inner wall top surface and bottom surface of the movable groove (74) are fixedly connected to a limiting plate (75), the inner wall top surface of the movable groove (74) is fixedly connected to a pressure guide plate (76), and the pressure guide plate (76) is arranged at one end of the limiting plate (75).

6. The novel hidden explosion-proof nylon zipper according to claim 5 is characterized in that: The inner wall of the movable hole (73) is provided with a clamping groove (731), and the inner wall of the clamping groove (731) is fixedly connected with a protrusion (732).

7. The novel hidden explosion-proof nylon zipper according to claim 6 is characterized in that: A telescopic groove (78) is provided inside the movable hole (73), the interior of the telescopic groove (78) is communicated with the interior of the movable groove (74), and a spring piece (771) is provided inside the telescopic groove (78).

8. The novel hidden explosion-proof nylon zipper according to claim 7 is characterized in that: One end of the spring sheet (771) is fixedly connected to a fixing block (772), and the other end of the spring sheet (771) is fixedly connected to a latch tooth (77).

9. The novel hidden explosion-proof nylon zipper according to claim 8 is characterized in that: A spring (773) is fixedly connected between one end of the spring sheet (771) and the inner wall of the telescopic slot (78).

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