Zipper structure capable of being quickly opened
By incorporating a rolling unit and a spring-loaded opening assembly within the zipper pull, combined with a lubrication system, the jamming problem caused by friction and wear in traditional zippers is solved, achieving faster zipper opening and extended service life.
Patent Information
- Application Number
- CN202520741361.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-18
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-04-18
AI Technical Summary
Traditional zippers can become stuck due to friction and wear during opening, affecting smooth opening, and lubrication and maintenance are inconvenient.
The device employs an opening assembly, including a rolling unit and a spring, inside the pull head, utilizing rolling contact instead of sliding contact, and is equipped with a lubrication system to reduce frictional resistance.
It enables rapid separation of chain teeth, reduces frictional resistance, extends the service life of the zipper, and improves ease of use and durability.
Smart Images

Figure CN223830468U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of zipper structure technology, specifically to a zipper structure that can be opened quickly. Background Technology
[0002] Zippers, as a common and widely used connector, primarily rely on continuously arranged teeth to achieve closure or closure. With their simple structure and mature manufacturing process, they are now widely used in clothing, bags, tents, suitcases, and outdoor sports equipment. Traditional zippers mostly employ a one-to-one interlocking tooth engagement method, using a support core to separate the teeth on both sides during the zipper opening process, thus enabling the zipper to open.
[0003] During the opening of a traditional zipper, a large sliding contact area exists between the support core and the chain teeth, inevitably generating significant sliding friction. With prolonged and repeated use, wear caused by this friction gradually accumulates, resulting in an uneven surface on the chain teeth. In severe cases, this can easily lead to jamming, affecting the smooth opening of the zipper. Worn zippers can only rely on lubrication to maintain normal operation, which is quite inconvenient.
[0004] Therefore, there is an urgent need for a zipper structure that can be opened quickly, reducing frictional resistance, extending service life, and meeting the daily needs of users. Utility Model Content
[0005] The purpose of this invention is to provide a zipper structure that can be opened quickly. This zipper structure can achieve smooth separation of the zipper teeth, reduce frictional resistance and required pulling force during the opening operation, thereby effectively reducing zipper tooth wear and jamming, extending the zipper's service life, and meeting the daily needs of users.
[0006] The technical solution adopted by this utility model to solve the above problems is: a zipper structure that can be quickly opened, including two chain belts, chain teeth and a pull head. The chain teeth are set on the two chain belts and the pull head realizes the engagement or separation of the corresponding chain teeth on the two chains. The pull head includes an upper base plate, a lower base plate and a support core. The support core is fixedly set between the upper base plate and the lower base plate. An opening component for separating the chain teeth that are engaged on both sides is also provided between the upper base plate and the lower base plate. The opening component includes two sets of rolling units and the two sets of rolling units are connected by two sets of springs.
[0007] Preferably, the rolling unit includes a roller and two sets of sliders. Both the upper and lower base plates are provided with grooves that are adapted to the sliding of the sliders. The grooves are set perpendicular to the pulling direction of the pull head. The roller is rotatably set between the upper and lower sets of sliders. The two ends of the spring are respectively connected and fixed to the sliders of one set of rolling units.
[0008] Preferably, the upper base plate is provided with a pull nose, and the pull nose is connected to a pull tab via a connector.
[0009] Preferably, the nose puller has an injection port, the support core has a lubrication port, the injection port and the lubrication port are connected by a lubrication channel, the puller has a storage bladder, and the storage bladder has an injection head that communicates with its interior.
[0010] Preferably, the injection head is fitted with a sealing cap, which is fixed to the pull tab via a connecting strap.
[0011] Preferably, one end of the chain is provided with an upper stop block and the other end is provided with a lower stop block.
[0012] Preferably, one end of the chain is provided with an upper stop block, and the other end is provided with a locking element.
[0013] Compared with the prior art, this utility model has the following advantages and effects:
[0014] This invention features an opening component inside the zipper pull, comprising two sets of rolling units and a spring. During the zipper opening process, the two rolling units are pushed outwards by the spring force, causing the interlocking chain teeth to quickly separate. Compared to traditional sliding separation methods, this invention utilizes the rolling contact between the rolling units and the chain teeth, reducing frictional resistance and making the zipper opening and closing smoother. Simultaneously, the rolling separation structure effectively reduces wear on the chain teeth, extending the zipper's lifespan.
[0015] Furthermore, this invention incorporates a lubrication system. Lubricant is injected into the lubrication channel through an inlet on the zipper nose. This lubrication directly acts on the contact area between the rolling unit and the chain teeth, further reducing frictional resistance and ensuring the zipper remains smooth even after multiple uses. The coordinated design of the sealing cap and connecting strip effectively prevents lubricant leakage, enhancing the product's ease of use. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of a zipper structure that can be quickly opened according to an embodiment of the present invention.
[0017] Figure 2 This is a partially enlarged view of a zipper structure that can be quickly opened according to an embodiment of this utility model.
[0018] Figure 3 This is a schematic diagram of the opening component according to an embodiment of the present invention.
[0019] Figure 4 This is a cross-sectional structural diagram of the slider of this utility model embodiment.
[0020] Figure 5 - Figure 7 These are schematic diagrams of three types of zipper structures in embodiments of this utility model.
[0021] Figure numbers: Chain belt 11, chain tooth 12, pull head 13, upper base plate 14, lower base plate 15, support core 16, opening assembly 17, rolling unit 18, spring 19, roller 21, slider 22, slide groove 23, pull nose 24, connector 25, pull plate 26, injection port 27, lubrication port 28, lubrication channel 29, storage bladder 31, injection head 32, sealing cover 33, connecting belt 34, upper stop block 35, lower stop block 36, locking component 37. Detailed Implementation
[0022] The present invention will be further described in detail below with reference to the accompanying drawings and through embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.
[0023] Example:
[0024] See Figure 1 - Figure 4 This embodiment relates to a zipper structure that can be opened quickly. It is specifically used in outdoor sports equipment, emergency rescue devices, smart wearable devices, and luggage and clothing where quick and safe opening is required. Specifically, it includes: two chain belts 11, chain teeth 12, and a zipper pull 13. The chain teeth 12 are set on the two chain belts 11 and the zipper pull 13 enables the corresponding chain teeth 12 on the two chains to engage or disengage. The zipper pull 13 includes an upper base plate 14, a lower base plate 15, and a support core 16. The support core 16 is fixedly set between the upper base plate 14 and the lower base plate 15. An opening component 17 for separating the chain teeth 12 that are engaged on both sides is also provided between the upper base plate 14 and the lower base plate 15. The opening component 17 includes two sets of rolling units 18, which are connected by two sets of springs 19.
[0025] Specifically, in this embodiment, when the user pulls the zipper head 13 to open the zipper, the zipper head 13 and the two sets of chain straps 11 move relative to each other. Under the elastic force of the two sets of springs 19, the rolling units 18 on both sides can be quickly pushed outward during the pulling process of the zipper head 13, so that the interlocking chain teeth 12 are opened and separated under the pushing force. During the process of the two chain straps 11 being pulled apart, the chain teeth 12 and the rolling units 18 roll in contact. The rolling method reduces the frictional resistance during the opening process. Compared with the sliding friction generated by the sliding contact between the traditional zipper and the support core 16, the pulling force required to overcome it is also smaller, thus achieving the technical goal of fast opening. In addition, this utility model also uses the elastic force of the springs 19 to open the interlocking chain teeth 12 before they contact the support core 16 during the opening process, reducing the wear caused by friction between the chain teeth 12 and the support core 16, and improving the overall service life of the zipper structure.
[0026] See Figure 3In this embodiment, the rolling unit 18 includes a roller 21 and two sets of sliders 22. Both the upper base plate 14 and the lower base plate 15 are provided with grooves 23 that slide to fit the sliders 22. The grooves 23 are perpendicular to the pulling direction of the pull head 13, ensuring that the sliders 22 can move smoothly along a predetermined trajectory during pulling. The roller 21 is rotatably positioned between the upper and lower sets of sliders 22, allowing it to form good rolling contact with the chain teeth 12 during rolling. The two ends of the spring 19 are respectively connected and fixed to the sliders 22 of one set of rolling units 18. Thus, when the user applies pulling force, the spring force of the spring 19 pushes the two rolling units 18 outwards, causing the chain teeth 12 to separate quickly, reducing frictional resistance, and achieving a rapid chain opening effect.
[0027] See Figure 4 The upper base plate 14 is provided with a pull nose 24, which is connected to a pull tab 26 via a connector 25. The pull nose 24 has an injection port 27, and the support core 16 has a lubrication port 28. The two (injection port 27 and lubrication port 28) are connected by a lubrication channel 29 inside the pull head 13. The pull tab 26 is provided with a storage bladder 31, and the storage bladder 31 is provided with an injection head 32 connected to its interior. In this embodiment, the lubrication port 28 faces the opening assembly 17, allowing lubricant from the storage bladder 31 to be injected through the injection port 27 into the lubrication channel 29 and output from the lubrication port 28 to the opening assembly 17, lubricating the surface of the roller 21. This further reduces the frictional resistance when the chain teeth 12 roll and separate, making the chain opening process smoother and faster, and effectively extending the service life of the device. The injection head 32 is fitted with a sealing cap 33, which is connected and fixed to the pull tab 26 via a connecting strap 34. The sealing cap 33 effectively prevents lubricant leakage or external dust from entering the storage bladder and causing contamination.
[0028] See Figure 5 - Figure 7 The zipper structure in this embodiment can be applied to various scenarios, and therefore various types can be designed. This embodiment includes, but is not limited to, the following three types:
[0029] Closed zipper structure: One end of the zipper strap 11 is provided with an upper stop block 35, and the other end is provided with a lower stop block 36. The lower stop block 36 is fixed and can only be pulled open from the upper stop block 35 end. When the zipper is fully open, the two zipper straps 11 are connected by the lower stop block 36 and cannot be separated. Suitable for ordinary bags.
[0030] Open zipper structure: One end of the zipper belt 11 is provided with an upper stop block 35, and the other end is provided with a locking member 37. When the locking member is engaged, it is equivalent to a closed zipper structure. Pulling the zipper pull 13 against the locking member 37 will separate the locking member 37, and the zipper belt 11 can be separated. Suitable for clothing or items that need to be opened frequently.
[0031] Double-opening zipper structure: Includes two zipper pulls 13, which can be opened or closed from either end. Pulling both zipper pulls 13 together to lock them apart allows for full opening. Suitable for large bags, bedding, tents, etc.
[0032] The locking member 37 in this embodiment includes a plug and a plug that are mutually compatible.
[0033] The above description in this specification is merely illustrative of the present invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, as long as they do not depart from the content of this specification or exceed the scope defined in the claims, all of which shall fall within the protection scope of this invention.
Claims
1. A zipper structure for quick opening, comprising two chain straps, chain teeth, and a slider, wherein the chain teeth are disposed on the two chain straps and the slider enables the corresponding chain teeth on the two chains to engage or disengage, characterized in that, The zipper head includes an upper base plate, a lower base plate, and a support core. The support core is fixedly disposed between the upper base plate and the lower base plate. An opening assembly for separating the interlocking chain teeth on both sides is also disposed between the upper base plate and the lower base plate. The opening assembly includes two sets of rolling units, which are connected by two sets of springs.
2. The zipper structure for quick opening according to claim 1, characterized in that: The rolling unit includes a roller and two sets of sliders. Both the upper and lower base plates are provided with grooves that are adapted to the sliding of the sliders. The grooves are set perpendicular to the pulling direction of the pull head. The roller is rotatably positioned between the upper and lower sets of sliders. The two ends of the spring are respectively connected and fixed to the sliders of one set of rolling units.
3. The zipper structure for quick opening according to claim 1, characterized in that: The upper base plate is provided with a pull nose, and the pull nose is connected to a pull tab via a connector.
4. The zipper structure for quick opening according to claim 3, characterized in that: The pull tab has an injection port, the support core has a lubrication port, the injection port and the lubrication port are connected by a lubrication channel, the pull tab has a storage bladder, and the storage bladder has an injection head that communicates with its interior.
5. The zipper structure for quick opening according to claim 4, characterized in that: The injection head is fitted with a sealing cap, which is fixed to the pull tab via a connecting strap.
6. The zipper structure for quick opening according to claim 1, characterized in that: The chain belt is provided with an upper stop block at one end and a lower stop block at the other end.
7. The zipper structure for quick opening according to claim 1, characterized in that: One end of the chain is provided with an upper stop block, and the other end is provided with a locking element.