Anti-drop zipper
By introducing a limiting design with magnet blocks and magnetic plates into the zipper structure, the problem of zipper head slippage is solved, achieving the zipper's anti-slip effect and improving its stability in use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DECHENG ZIPPER (DONGGUAN) CO LTD
- Filing Date
- 2025-09-23
- Publication Date
- 2026-07-21
AI Technical Summary
During use, the zipper head tends to slide downwards, causing the zipper teeth to open outwards, resulting in inconvenience.
By optimizing the zipper structure and adopting a combination of magnetic blocks and magnetic plates for limiting the position of the zipper head, the magnetic blocks and magnetic plates are used to restrict the position of the zipper head. The engagement part and the limiting part work together to prevent the zipper head from sliding downward.
This effectively prevents the zipper head from sliding downwards, prevents the zipper teeth from opening, and improves the stability and ease of use of the zipper.
Smart Images
Figure CN224522516U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of zipper manufacturing, specifically relating to an anti-detachment zipper. Background Technology
[0002] In existing zipper structures, the zipper head generally includes a zipper head body that mates with the zipper and a pull tab for the user to pull the zipper head body. Zipper heads, in conjunction with zippers, are widely used in various garments, bags, and pouches.
[0003] In the process of realizing this utility model, the inventors discovered that the prior art has at least the following problems:
[0004] During use, the zipper head tends to slide downwards and the zipper teeth spread outwards, causing clothing to fall off and making it inconvenient for the user. Utility Model Content
[0005] The purpose of this invention is to provide an anti-slip zipper that addresses the shortcomings of existing technologies by optimizing the zipper structure and solving the problem of the zipper head easily sliding downwards.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A zipper with anti-detachment features includes a zipper tape and a zipper head, the zipper head being mounted on the zipper tape. The zipper tape includes two symmetrically arranged chain teeth, each with a locking portion and a first limiting portion on its upper side. The first limiting portion has a first contact surface facing the zipper head. The zipper head includes a zipper base and a zipper plate. The zipper base has a vertically arranged mounting hole, and the zipper plate is connected to the zipper base through the mounting hole. The zipper plate has an anti-detachment hole that cooperates with the locking portion. The end of the zipper base has a second limiting portion, and the top of the second limiting portion has a second contact surface that cooperates with the first contact surface. The surface of the first contact surface is provided with a magnetic sheet, and the surface of the second contact surface is provided with a magnet.
[0008] In some possible implementations, the first contact surface is provided with a first groove, and the magnet is embedded in the first groove; the second contact surface is provided with a second groove, and the magnet is embedded in the second groove.
[0009] In some possible implementations, the snap-fit portion includes a fixing member and an L-shaped post, one end of which is vertically fixed to the fixing member, and the anti-detachment hole of the zipper piece is inserted into the snap-fit portion from the other end of the L-shaped post.
[0010] In some possible implementations, the fastener and the first limiting portion are both provided with a first hook and loop fastener on the side facing the chain tooth, and the chain tooth is provided with a second hook and loop fastener that mates with the first hook and loop fastener. The first hook and loop fastener has a rough surface, and the second hook and loop fastener has a hook surface.
[0011] In some possible implementations, both the first contact surface and the second contact surface are inclined surfaces, and the inclination angles of the first contact surface and the second contact surface are complementary.
[0012] In some possible implementations, the areas of the first contact surface and the second contact surface are equal.
[0013] In some possible implementations, the magnet block is made of neodymium iron boron magnet, and the magnetizing sheet is made of stainless steel.
[0014] One of the above technical solutions has the following beneficial effects:
[0015] This invention optimizes the zipper structure. The zipper head moves upward towards the zipper teeth to engage the teeth on both sides. The second limiting part also moves upward with the zipper head, making contact with the first limiting part. The magnet on the second contact surface attracts the magnetic sheet on the first contact surface, thus limiting the position of the second limiting part and preventing the zipper head from sliding downward, which would cause the zipper teeth to open outward. At the same time, the zipper piece can be rotated around the mounting hole so that the anti-detachment hole of the zipper piece faces upward, which can cooperate with the locking part on the upper side of the zipper teeth to lock the anti-detachment hole into the locking part, preventing the zipper piece from moving downward and limiting the downward sliding of the zipper head, thus solving the problem of the zipper head easily sliding downward. Attached Figure Description
[0016] The features, advantages and technical effects of exemplary embodiments of the present invention will now be described with reference to the accompanying drawings.
[0017] Figure 1 This is a schematic diagram of the structure of this utility model.
[0018] Figure 2 This is a schematic diagram showing the connection between the first limiting part and the second limiting part of this utility model.
[0019] Figure 3 This is a schematic diagram showing the connection between the zipper piece and the snap-fit part of this utility model.
[0020] The reference numerals in the attached figures are explained as follows:
[0021] 1-Zipper head; 11-Zipper base; 12-Zipper plate; 121-Anti-slip hole;
[0022] 2-Chain tooth belt;
[0023] 3-Snap-fit part; 31-Fixing component; 32-L-shaped post;
[0024] 4-First limiting part; 41-First contact surface; 411-Magnetic sheet;
[0025] 5-Second limiting part; 51-Second contact surface; 511-Magnetic block. Detailed Implementation
[0026] If certain terms are used in the specification and claims to refer to specific components, those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" as used throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.
[0027] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be interpreted as indicating or implying relative importance.
[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0029] The present invention will be further described in detail below with reference to the accompanying drawings, but this is not intended to limit the present invention.
[0030] Example 1
[0031] Because existing zippers tend to slip downwards during use, causing the zipper teeth to open outwards and clothing to fall off, resulting in inconvenience for users.
[0032] like Figures 1-3As shown, the anti-detachment zipper of this utility model includes a zipper tape and a zipper head 1. The zipper head 1 is mounted on the zipper tape. The zipper tape includes two symmetrically arranged chain teeth 2. The upper sides of the two chain teeth 2 are respectively provided with a locking part 3 and a first limiting part 4. The side of the first limiting part 4 facing the zipper head 1 is provided with a first contact surface 41. The zipper head 1 includes a zipper base 11 and a zipper piece 12. The zipper base 11 is vertically provided with a mounting hole. The zipper piece 12 is connected to the zipper base 11 through the mounting hole. The zipper piece 12 is provided with an anti-detachment hole 121. The anti-detachment hole 121 and the locking part 3 cooperate with each other. The end of the zipper base 11 is provided with a second limiting part 5. The top of the second limiting part 5 is provided with a second contact surface 51 that cooperates with the first contact surface 41. The surface of the first contact surface 41 is provided with a magnetic sheet 411. The surface of the second contact surface 51 is provided with a magnet block 511. This invention optimizes the zipper structure. The zipper head 1 moves upward toward the toothed band 2 to engage the toothed bands 2 on both sides. The second limiting part 5 also moves upward toward the toothed band 2 along with the zipper head 1, so that the second limiting part 5 and the first limiting part 4 come into contact with each other. The magnet block 511 on the second contact surface 51 attracts the magnetic sheet 411 on the first contact surface 41, thus limiting the position of the second limiting part 5 and limiting the position of the zipper head 1. This prevents the zipper head from sliding downward, which would cause the toothed band to open outward. At the same time, the zipper piece 12 can be rotated around the mounting hole so that the anti-detachment hole 121 of the zipper piece 12 faces upward and can cooperate with the locking part 3 on the upper side of the toothed band 2. This allows the anti-detachment hole 121 to be locked into the locking part 3, preventing the zipper piece 12 from moving downward and limiting the downward sliding of the zipper head, thus solving the problem of the zipper head 1 easily sliding downward.
[0033] It should be noted that: the engaging part 3 and the first limiting part 4 are designed along the zipper tape. The engaging part 3 is positioned higher than the first limiting part 4. The second limiting part 5 of the zipper seat 11 first contacts the first limiting part 4, and then the anti-detachment hole 121 of the zipper piece 12 engages with the engaging part 3. The zipper seat 11 includes two parallel upper and lower covers, which are connected by a connecting block. The mounting hole is an arch-shaped structure, vertically set on the surface of the upper cover. One end of the zipper piece 12 is provided with a loop-shaped connecting part, which can fit onto the mounting hole to realize the connection between the zipper piece 12 and the zipper seat 11, allowing the zipper piece 12 to move up and down within a certain range in the height direction. The other end of the zipper piece 12 is designed with an anti-detachment hole 121. After the zipper piece 12 is flipped, the zipper piece 12 moves upward a preset distance within the range of the mounting hole and engages in the engaging part 3, preventing the zipper head from sliding downward.
[0034] In the anti-detachment zipper according to this utility model, the locking part 3 includes a fixing member 31 and an L-shaped post 32. One end of the L-shaped post 32 is vertically fixed to the fixing member 31, and the anti-detachment hole 121 of the zipper piece 12 is inserted into the locking part 3 from the other end of the L-shaped post 32. Specifically, the fixing member 31 and the L-shaped post 32 preferably adopt an integral molding structure. The fixing member 31 can be pre-sewn on the upper side of the zipper tape. The other end of the L-shaped post 32 is parallel to the zipper tape and faces upward. The cross-section of the locking part 3 is similar to a concave shape. When the anti-detachment hole 121 of the zipper piece 12 is inserted into the locking part 3, it plays a role in restricting the downward movement of the zipper head 1.
[0035] In the anti-detachment zipper according to the present invention, both the first contact surface 41 and the second contact surface 51 are inclined surfaces. The inclination angle of the first contact surface 41 and the inclination angle of the second contact surface 51 are complementary, which helps to increase the contact area between the first contact surface 41 and the second contact surface 51.
[0036] In the anti-detachment zipper according to the present invention, the areas of the first contact surface 41 and the second contact surface 51 are equal, ensuring that the first contact surface 41 and the second contact surface 51 are in full contact, thereby improving the stability between the first limiting part 4 and the second limiting part 5.
[0037] In the anti-slip zipper according to this utility model, the magnet 511 is made of neodymium iron boron magnet, and the magnetic attracting sheet 411 is made of stainless steel. Specifically, the magnetic attracting sheet 411 and the magnet 511 are attracted and fixed, playing a limiting role and preventing the zipper head 1 from slipping down. In some embodiments, the magnetic flux density between the magnetic attracting sheet 411 and the magnet 511 is greater than or equal to 100mT, ensuring that the zipper head 1 is prevented from slipping down when the garment is in use.
[0038] The working principle of this utility model is as follows:
[0039] This invention optimizes the zipper structure. The zipper head 1 moves upward toward the toothed band 2 to engage the toothed bands 2 on both sides. The second limiting part 5 also moves upward toward the toothed band 2 along with the zipper head 1, so that the second limiting part 5 and the first limiting part 4 come into contact with each other. The magnet block 511 on the second contact surface 51 attracts the magnetic sheet 411 on the first contact surface 41, thus limiting the position of the second limiting part 5 and limiting the position of the zipper head 1. This prevents the zipper head from sliding downward, which would cause the toothed band to open outward. At the same time, the zipper piece 12 can be rotated around the mounting hole so that the anti-detachment hole 121 of the zipper piece 12 faces upward and can cooperate with the locking part 3 on the upper side of the toothed band 2. This allows the anti-detachment hole 121 to be locked into the locking part 3, preventing the zipper piece 12 from moving downward and limiting the downward sliding of the zipper head, thus solving the problem of the zipper head 1 easily sliding downward.
[0040] Example 2
[0041] Unlike Embodiment 1, in this embodiment, the first contact surface 41 is provided with a first groove, in which the magnetic sheet 411 is embedded; the second contact surface 51 is provided with a second groove, in which the magnet 511 is embedded. The magnetic sheet 411 and the magnet 511 can be fixed to the first and second grooves by adhesive bonding, or the magnetic sheet 411 can be welded to the first groove and the magnet 511 to the second groove. There are no restrictions here, as long as the two are fixedly connected.
[0042] The other structures are the same as in Embodiment 1, and will not be described again here.
[0043] Example 3
[0044] Unlike Embodiment 1, in this embodiment, both the fastener 31 and the first limiting part 4 have a first hook and loop fastener on the side facing the chain tooth 2, and the chain tooth 2 has a second hook and loop fastener that cooperates with the first hook and loop fastener. The first hook and loop fastener has a rough surface, and the second hook and loop fastener has a hook surface. Specifically, the first hook and loop fastener has a hook surface, and the corresponding position of the second hook and loop fastener on the chain tooth 2 has a rough surface. The peel strength is greater than or equal to 1.5 N / cm, which enables it to be fixed to the first hook and loop fastener of the fastener 31 and the first limiting part 4, preventing the fastener 31 and the first limiting part 4 from falling off. At the same time, both the first hook and loop fastener have adhesive backing, which makes it easy to stick the first hook and loop fastener to the side of the fastener 31 and the first limiting part 4 facing the chain tooth 2, and the second hook and loop fastener to the surface of the chain tooth 2.
[0045] The other structures are the same as in Embodiment 1, and will not be described again here.
[0046] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments described above, and any obvious improvements, substitutions, or modifications made by those skilled in the art based on this utility model are within the protection scope of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.
Claims
1. A zipper designed to prevent detachment, characterized in that, It includes a zipper tape and a zipper head (1), the zipper head (1) being mounted on the zipper tape; The zipper tape includes two symmetrically arranged chain teeth (2), and the upper sides of the two chain teeth (2) are respectively provided with a snap-fit part (3) and a first limiting part (4). The side of the first limiting part (4) facing the zipper head (1) is provided with a first contact surface (41). The zipper head (1) includes a zipper base (11) and a zipper piece (12). The zipper base (11) is vertically provided with a mounting hole. The zipper piece (12) is connected to the zipper base (11) through the mounting hole. The zipper piece (12) is provided with an anti-detachment hole (121). The anti-detachment hole (121) and the snap-fit part (3) cooperate with each other. The zipper seat (11) is provided with a second limiting part (5) at its end. The top of the second limiting part (5) is provided with a second contact surface (51) that cooperates with the first contact surface (41). The surface of the first contact surface (41) is provided with a magnetic sheet (411), and the surface of the second contact surface (51) is provided with a magnet block (511).
2. The anti-detachment zipper as described in claim 1, characterized in that: The first contact surface (41) is provided with a first groove, and the magnet (411) is embedded in the first groove. The second contact surface (51) is provided with a second groove, and the magnet (511) is embedded in the second groove.
3. The anti-detachment zipper as described in claim 1, characterized in that: The snap-fit part (3) includes a fixing member (31) and an L-shaped post (32). One end of the L-shaped post (32) is vertically fixed to the fixing member (31), and the anti-detachment hole (121) of the zipper piece (12) is inserted into the snap-fit part (3) from the other end of the L-shaped post (32).
4. The anti-detachment zipper as described in claim 3, characterized in that: Both the fastener (31) and the first limiting part (4) are provided with a first hook and loop fastener on the side facing the chain tooth (2), and the chain tooth (2) is provided with a second hook and loop fastener that cooperates with the first hook and loop fastener. The first hook and loop fastener has a rough surface, and the second hook and loop fastener has a hook surface.
5. The anti-detachment zipper as described in claim 1, characterized in that: Both the first contact surface (41) and the second contact surface (51) are inclined surfaces, and the inclination angles of the first contact surface (41) and the second contact surface (51) are complementary.
6. The anti-detachment zipper as described in claim 1, characterized in that: The areas of the first contact surface (41) and the second contact surface (51) are equal.
7. The anti-detachment zipper as described in claim 1, characterized in that: The magnet block (511) is made of neodymium iron boron magnet, and the magnetizing sheet (411) is made of stainless steel.