Double-layer nylon tooth anti-theft zipper
By designing a double-layer nylon toothed anti-theft zipper and using components such as a lock cylinder, lock tongue, and key, the problem of existing zippers being easily opened illegally has been solved, achieving an improvement in security and stability, and making it suitable for applications requiring high security.
Patent Information
- Application Number
- CN202520317029.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2035-02-26
AI Technical Summary
Existing zippers lack security mechanisms and are easily opened illegally, posing a security risk, especially in situations involving personal property and privacy.
A double-layer nylon toothed anti-theft zipper was designed, which uses components such as lock cylinder, lock tongue, and key. It can only be opened by unlocking with the key to ensure that the pull tab is locked. Combined with the design of limit block and elastic element, it prevents accidental unlocking.
It improves the security of zippers, prevents unauthorized opening, ensures the stability of the locked state, avoids accidental unlocking, and enhances the protection of personal property and privacy.
Smart Images
Figure CN223799391U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a zipper, especially a double-layer nylon tooth anti-theft zipper. BACKGROUND
[0002] A zipper is a connector widely used in clothes, bags and other articles, which is composed of a chain tooth, a puller, an upper stop and a lower stop. Zippers are mainly divided into three categories of nylon zippers, resin zippers and metal zippers according to materials, each of which has different characteristics and application scenarios. Nylon zippers are soft, light and have low strength, and are often used in sportswear, down jackets and the like; resin zippers are wear-resistant, have good chemical corrosion resistance and an attractive appearance, and are often used in jeans, casual pants and the like; metal zippers have high strength and good wear resistance but are high in cost, and are often used in clothes such as jeans and coats that require high strength and durability.
[0003] The existing zipper design mainly focuses on the basic opening and closing function, lacks a safety protection mechanism, and makes the zipper easily opened by anyone, which is prone to illegal opening. Therefore, in occasions involving personal property and privacy protection, especially in application scenarios with extremely high safety requirements, such as travel bags or containers for storing valuable items, it may constitute a serious safety hazard. SUMMARY
[0004] In order to overcome the shortcomings of the existing zipper lacking a safety protection mechanism, the technical problem of the utility model is to provide a double-layer nylon tooth anti-theft zipper.
[0005] The technical scheme is: a double-layer nylon tooth anti-theft zipper, comprising a cloth tape, a chain tooth, a puller, a first puller, a second puller, a first elastic member, a first limiting block, a lock cylinder, a lock tongue, a push block, a key, a push member and a rotating member, a plurality of chain teeth are arranged on the opposite sides of the two cloth tapes, two pullers are slidably arranged on the left and right sides between the two cloth tapes, the first puller and the second puller are slidably connected to the two pullers respectively, a recess matching the shape of the first puller is arranged in the middle of the second puller, the lock cylinder is rotatably arranged on the upper side of the second puller, two sliding holes are formed in the middle of the lock cylinder, the push block is slidably arranged in the sliding hole, the first limiting block is slidably arranged in the second puller, the first elastic member is connected between the first limiting block and the second puller, a lock hole is formed in the upper side of the lock cylinder, the key can be inserted into the lock hole, the push member and the rotating member are arranged on the lower side of the key, the lock tongue is arranged on the lower side of the lock cylinder, a sliding groove matching the lock tongue is arranged on the first puller and the second puller, and the shape of the sliding groove is a circular arc with the lock cylinder as the center.
[0006] Further, it further comprises a second elastic member and a second limiting block, the second limiting block is slidably arranged in the recess of the second puller, the second elastic member is connected between the second puller and the second limiting block, and a recess matching the second limiting block is arranged on the upper side of the first puller.
[0007] Further, the two pullers are opposite in direction.
[0008] Further, the push block side wall is provided with a circular ring.
[0009] Further, the end of the push block away from the first limiting block is hemispherical.
[0010] Further, the key upper portion is provided with a through hole.
[0011] The utility model discloses the beneficial effect has: 1, the utility model discloses through the design of lock cylinder, lock tongue and key etc. component can lock together with first pull piece and second pull piece, can only be unlocked through correct key, effectively prevent illegal opening, improve security, when the lock cylinder is in the locking state, the first limiting block will be stuck into the slide hole of lock cylinder, thereby ensure that the lock cylinder will not rotate because of accidental circumstances, avoid accidental release of the locking state.
[0012] 2, the utility model discloses through the design of second limiting block and second elastic part, after the first pull piece enters the recess of second pull piece, it is stuck, and the subsequent locking work is convenient to carry out, through the setting of the direction of two pullers, ensure that when two pullers are close, the chain teeth are in the closed state, and the circular ring design of push block side wall prevents accidental falling of push block. DRAWINGS
[0013] Figure 1 It is the three-dimensional structure schematic diagram of the utility model.
[0014] Figure 2 It is the three-dimensional structure schematic diagram of first pull piece, second pull piece and lock cylinder etc. of the utility model.
[0015] Figure 3 It is the explosion drawing of second pull piece, lock cylinder and key etc. of the utility model.
[0016] Figure 4 It is the sectional view of second pull piece of the utility model.
[0017] Figure 5 It is Figure 4 Three-dimensional structure schematic diagram of A place.
[0018] Figure 6 It is the three-dimensional structure schematic diagram of the utility model in the locking state.
[0019] Figure 7 It is the sectional view of first pull piece and second pull piece of the utility model.
[0020] Explanation of reference numerals in the attached drawings: 1. Fabric tape, 2. Chain teeth, 3. Sliding head, 4. First pull tab, 5. Second pull tab, 51. First elastic element, 52. First limiting block, 53. Second elastic element, 54. Second limiting block, 6. Lock cylinder, 61. Lock tongue, 62. Push block, 63. Slide groove, 7. Key, 71. Pushing element, 72. Rotating element. Detailed Implementation
[0021] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.
[0022] A double-layer nylon toothed anti-theft zipper, such as Figures 1-7 As shown, it includes a fabric strip 1, chain teeth 2, a pull head 3, a first pull tab 4, a second pull tab 5, a first elastic element 51, a first limiting block 52, a lock cylinder 6, a lock tongue 61, a push block 62, a key 7, a pusher 71, and a rotating element 72. Two equal and parallel fabric strips 1 have multiple chain teeth 2 symmetrically arranged on opposite sides. Two pull heads 3 are slidably arranged on the left and right sides between the two fabric strips 1. The pull heads 3 can open or close the chain teeth 2 on the two fabric strips. The two pull heads 3 are slidably connected to the first pull tab 4 and the second pull tab 5. The second pull tab 5 has a groove in the middle that matches the shape of the first pull tab 4. A lock cylinder 6 is rotatably arranged on the upper side of the second pull tab 5. The lock cylinder 6 has two sliding holes in the middle, with an angle of 90 degrees between the two sliding holes. A pusher 62 is slidably arranged in each of the two sliding holes. The lock cylinder 6 is equipped with a first limiting block 52, and a first elastic element 51 is connected between the first limiting block 52 and the second pull tab 5. The first limiting block 52 extends into one of the sliding holes of the lock cylinder 6 and contacts the push block 62. The first limiting block 52 restricts the rotation of the lock cylinder 6. The upper side of the lock cylinder 6 has a lock hole into which a key 7 can be inserted. The lower side of the key 7 is equipped with a pusher 71 and a rotating element 72. The upper side of the lock hole matches the shape of the pusher 71 and the rotating element 72, and the lower side only matches the shape of the rotating element 72. The lower side of the lock cylinder 6 is equipped with a latch 61. The first pull tab 4 and the second pull tab 5 are both equipped with a sliding groove 63 that matches the latch 61. The shape of the sliding groove 63 is an arc with the lock cylinder 6 as the center. When the first pull tab 4 is inserted into the groove of the second pull tab 5, the sliding grooves of the first pull tab 4 and the second pull tab 5 form a quarter arc.
[0023] When the chain teeth 2 are in the closed state, the first pull tab 4 is inserted into the groove of the second pull tab 5, and then the key 7 is inserted into the lock hole of the lock cylinder 6, the pushing piece 71 on the key 7 extrudes the pushing block 62 to move outward of the lock cylinder 6, the pushing block 62 extrudes the first limiting block 52 out of the sliding hole, the first elastic piece 51 is contracted, and the first limiting block 52 no longer limits the rotation of the lock cylinder 6, at this time, the key 7 is rotated clockwise by ninety degrees, the rotating piece 72 drives the lock cylinder 6 and the lock tongue 61 to rotate, the lock tongue 61 slides into the sliding groove 63 of the first pull tab 4, at this time, the key 7 is pulled out of the lock cylinder 6, the pushing piece 71 no longer extrudes the pushing block 62, the first elastic piece 51 recovers from the contracted state, and the first limiting block 52 extends into another sliding hole of the lock cylinder 6 to limit the rotation of the lock cylinder 6.
[0024] As shown in Figure 4 and Figure 6 , further comprising a second elastic piece 53 and a second limiting block 54, the second limiting block 54 is slidably arranged in the groove of the second pull tab 5, the lower side of the second limiting block 54 is semicircular, the second elastic piece 53 is connected between the second pull tab 5 and the second limiting block 54, and the upper side of the first pull tab 4 is provided with a recess matched with the second limiting block 54; when the first pull tab 4 begins to be inserted into the groove of the second pull tab 5, the first pull tab 4 extrudes the second limiting block 54 to move upward, and the second elastic piece 53 is contracted; when the recess on the upper side of the first pull tab 4 is aligned with the second limiting block 54, the first pull tab 4 no longer extrudes the second limiting block 54, the second elastic piece 53 recovers from the contracted state, and the second elastic piece 53 drives the second limiting block 54 to extend into the recess of the first pull tab 4 to limit the movement of the first pull tab 4, facilitating the subsequent locking work.
[0025] The directions of the two pull heads 3 are opposite; when the two pull heads 3 move away from each other, the chain teeth 2 are in the open state, and when they move close to each other, the chain teeth 2 are in the closed state.
[0026] The side walls of the two pushing blocks 62 are each provided with a circular ring which is slidably connected with the middle part of the sliding hole of the lock cylinder 6; the circular ring can always keep the pushing block 62 in the sliding hole of the lock cylinder 6, and the phenomenon of falling or accidental loss will not occur.
[0027] The ends of the two pushing blocks 62 away from the first limiting block 52 are each semispherical; when the pushing piece 71 extrudes the pushing block 62, the semispherical shape can make the extrusion process more smooth.
[0028] A circular through hole is formed in the upper part of the key 7; the through hole of the key 7 facilitates the user to use the key 7 buckle or the key 7 chain to tie the key 7 to an object, which is convenient for the user to carry and prevents the key 7 from being lost.
[0029] While the present disclosure has been described with respect to a limited number of embodiments, those skilled in the art will appreciate numerous modifications and variations therefrom. It is intended that the appended claims cover all such modifications and variations as fall within the scope of this present disclosure.
Claims
1. A double-layer nylon toothed anti-theft zipper, comprising fabric tape (1), chain teeth (2) and zipper pulls (3), wherein multiple chain teeth (2) are provided on the upper and lower sides of the two fabric tapes (1), and two zipper pulls (3) are provided on the left and right sides of the two fabric tapes (1) respectively, characterized in that: The first pull tab (4), the second pull tab (5), the first elastic member (51), the first limiting block (52), the lock cylinder (6), the lock tongue (61), the push block (62), the key (7), the push member (71) and the rotating member (72) are further included, the two pull heads (3) are respectively slidably connected with the first pull tab (4) and the second pull tab (5), the middle part of the second pull tab (5) is provided with a groove matched with the shape of the first pull tab (4), the upper side of the second pull tab (5) is rotatably provided with the lock cylinder (6), the middle part of the lock cylinder (6) is provided with two sliding holes, the push block (62) is slidably arranged in the sliding hole, the inside of the second pull tab (5) is slidably provided with the first limiting block (52), the first elastic member (51) is connected between the first limiting block (52) and the second pull tab (5), the upper side of the lock cylinder (6) is provided with a lock hole, the key (7) can be inserted into the lock hole, the lower side of the key (7) is provided with the push member (71) and the rotating member (72), the lower side of the lock cylinder (6) is provided with the lock tongue (61), the first pull tab (4) and the second pull tab (5) are both provided with a sliding groove (63) matched with the lock tongue (61), the shape of the sliding groove (63) is a circular arc with the lock cylinder (6) as the center.
2. A double-layered nylon tooth anti-theft slide fastener according to claim 1, characterized in that: The second elastic member (53) and the second limiting block (54) are further included, the groove of the second pull tab (5) is slidably provided with the second limiting block (54), the second elastic member (53) is connected between the second pull tab (5) and the second limiting block (54), the upper side of the first pull tab (4) is provided with a recess matched with the second limiting block (54).
3. A double-layered nylon tooth anti-theft zipper according to claim 2, characterized in that: The directions of the two pull heads (3) are opposite.
4. A double-layered nylon tooth anti-theft zipper according to claim 3, characterized in that: The side wall of the push block (62) is provided with a circular ring.
5. A double-layered nylon tooth anti-theft zipper according to claim 4, characterized in that: The end of the push block (62) away from the first limiting block (52) is hemispherical.
6. A double-layered nylon tooth anti-theft zipper according to claim 5, characterized in that: The upper part of the key (7) is provided with a through hole.