A two-way self-locking double-opening zipper

Abstract

The utility model relates to a two -way self -locking type double -open zipper in the field of zipper, including two parallelly arranged zipper strips, two zipper strips are fixed with chain tooth, still include puller, set up in the puller self -locking subassembly, the puller inside forms the passageway, the puller top is formed with the accommodation part, the inside of accommodation part is provided with the accommodation cavity, the accommodation cavity is provided with the sliding slot, the self -locking subassembly is by lock tongue, magnetic block and pull piece, the front and rear both ends of lock tongue all are outward convex and are provided with the sliding block, lock tongue can do reciprocating linear motion along the extension direction of sliding slot, lock tongue passes through the extension of accommodation cavity bottom and reaches the passageway, the lower end surface of lock tongue forms has the meshing tooth, the meshing tooth and chain tooth engage, the sliding block has magnetism, ensure that the zipper can stably keep in any required state in the use process, whether is completely open, completely closes or half -open state, can effectively avoid the accidental opening or closing caused by the puller self -sliding.

Description

Technical Field

[0001] This utility model relates to the field of zippers, and in particular to a two-way self-locking double-opening zipper. Background Technology

[0002] Zippers, as a common connector, are widely used in various products such as clothing, bags, and tents. Their main function is to close and open openings by engaging and disengaging the teeth. They are characterized by ease of operation and reliable connection. A typical zipper usually consists of two zipper straps with teeth and a sliding slider. Pulling the slider engages or disengages the teeth on both sides, thus completing the zipper's opening and closing action.

[0003] While most common double-opening zippers are equipped with locking mechanisms, they are mostly one-way locking designs. Their locking function only prevents the zipper pull from sliding automatically in the opening direction when no external force is applied. In other words, it only prevents the zipper from opening automatically, but it cannot prevent the zipper pull from sliding automatically in the closing direction, thus not preventing the zipper from closing automatically. This can cause inconvenience in certain usage scenarios. For example, when it is necessary to keep the zipper in a specific half-open state, the zipper pull may move in the closing direction on its own, causing the zipper to close unexpectedly, affecting the user experience, and even potentially causing items to fall out. Utility Model Content

[0004] In order to overcome the shortcomings of existing technical solutions, this utility model provides a two-way self-locking double-opening zipper, which can effectively solve the technical problem of lacking two-way locking.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A two-way self-locking double-opening zipper includes two parallel zipper strips, each with teeth fixed to the opposite side edges along the length of the zipper strips. The zipper is characterized by including two sliders that can slide independently along the length of the teeth. The two sliders enable the engagement and disengagement of the two zipper strips. Each slider contains a self-locking component and has a hollow frame structure with a channel for the teeth to pass through and engage or disengage. The top of the slider has an integrally formed upward-protruding receiving portion, with an internal cavity communicating with the channel. The front and rear inner walls of the cavity are symmetrically provided with grooves.

[0007] The self-locking assembly consists of a latch, a magnetic block, and a pull tab. Both the front and rear ends of the latch have outwardly protruding sliders that can be slidably embedded in the groove. The latch can reciprocate linearly along the extension direction of the groove. The latch extends through the bottom of the receiving cavity into the channel. The lower end face of the latch has meshing teeth that match the chain teeth. The meshing teeth engage with the chain teeth. The slider is magnetic, and the magnetic block generates a continuous force on the slider, keeping the slider at the bottom of the groove. The pull tab is connected to the end of the latch away from the channel.

[0008] Furthermore, the lower end of the locking tongue extends downward to form a locking part, which passes through the bottom of the receiving cavity and extends into the channel. Guide slopes are provided on both sides of the locking part, and the guide slopes gradually slope outward from the middle to the end of the locking part.

[0009] Furthermore, the magnetic block is located at the top of the slide groove, and the magnetic block and the opposite end of the slider have the same polarity.

[0010] Furthermore, the pull tab is hinged to the upper end of the locking tongue via a connecting shaft, and a collar is provided between the pull tab and the connecting shaft, the collar being rotatably sleeved on the connecting shaft.

[0011] Furthermore, the channel entrance of the zipper head is provided with an outwardly inclined guide plate, one end of which is fixedly connected to the zipper head, and the other end extends away from the channel.

[0012] Furthermore, the slider end face of the latch is provided with a spherical protrusion, and the two ends of the slide groove are provided with limiting blocks. The spherical protrusion can abut against the limiting blocks to limit the maximum sliding stroke of the latch.

[0013] Furthermore, the zipper pull is provided with a wear-resistant strip extending along the length of the channel, and the wear-resistant strip is in contact with the surface of the zipper tape.

[0014] Compared with existing technologies, the advantages of this invention are as follows: It includes a self-locking component in which the slider is magnetic. The magnetic block exerts a continuous force on the slider, causing it to remain at the bottom of the groove, thereby engaging the locking tongue's teeth with the zipper teeth. This solves the problem that existing zippers can only lock in one direction and cannot simultaneously prevent automatic closure. It ensures that the zipper can stably maintain any desired state during use, whether fully open, fully closed, or half-open, effectively preventing accidental opening or closing due to the zipper pull sliding itself. This significantly improves the reliability and convenience of zipper use, better meeting the needs of different scenarios. Attached Figure Description

[0015] Figure 1 This is the front view of the present invention;

[0016] Figure 2 This is a schematic diagram of the zipper tape assembly in this utility model;

[0017] Figure 3 This is a side view of the slider in this utility model;

[0018] Figure 4 This is a structural diagram of the slider in this utility model;

[0019] The numbers in the diagram are: 1-zipper tape, 2-zipper tooth, 3-zipper pull, 4-channel, 5-receiving part, 6-accommodating cavity, 7-slide groove, 8-locking tongue, 9-magnet, 10-pull tab, 11-connecting shaft, 12-ring, 13-spherical protrusion, 14-limiting block, 15-wear-resistant strip, 16-slider, 17-meshing tooth. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] The following is combined Figures 1-4 This invention provides a detailed description of a two-way self-locking double-opening zipper:

[0022] A two-way self-locking double-opening zipper includes two parallel zipper straps 1. Each of the opposite edges of the two zipper straps 1 is fixed with teeth 2 arranged sequentially along the length of the zipper straps 1. It also includes two sliders 3 that can slide independently along the length of the teeth 2. The two sliders 3 can engage and disengage the two zipper straps 1 by moving closer or further apart from each other. The sliders 3 are equipped with a self-locking component. The sliders 3 have a hollow frame structure with a channel 4 inside for the teeth 2 on both sides to pass through and engage or disengage. The top of the sliders 3 has an integrally formed upward-protruding receiving part 5. The receiving part 5 has an opening in the cavity 6 that communicates with the channel 4. The front and rear inner walls of the cavity 6 are symmetrically provided with grooves 7.

[0023] The self-locking assembly consists of a locking tongue 8, a magnetic block 9, and a pull tab 10. The front and rear ends of the locking tongue 8 are provided with sliders 16 that protrude outwards. The sliders 16 are slidably embedded in the groove 7. The locking tongue 8 can reciprocate linearly along the extension direction of the groove 7. The locking tongue 8 extends through the bottom of the receiving cavity 6 into the channel 4. The lower end face of the locking tongue 8 forms a meshing tooth 17 that matches the chain tooth 2. The meshing tooth 17 engages with the chain tooth 2. The slider 16 is magnetic. The magnetic block 9 generates a continuous force on the slider 16, so that the slider 16 is located at the bottom of the groove 7. The pull tab 10 is connected to the end of the locking tongue 8 away from the channel 4.

[0024] Equipped with a self-locking component, the slider 16 is magnetic, and the magnetic block 9 exerts a continuous force on the slider 16, keeping it at the bottom of the groove 7. This, in turn, causes the engaging teeth 17 of the latch 8 to engage with the chain teeth 2. Whether the zipper pull 3 tends to slide in the direction of opening the zipper or in the direction of closing the zipper, the engagement of the engaging teeth 17 with the chain teeth 2 effectively prevents this sliding. After the latch 8 is lifted by the pull tab 10, the engaging teeth 17 disengage from the chain teeth 2, allowing the zipper pull 3 to slide along the zipper tape 1. This two-way locking effect solves the problem that existing zippers can only lock in one direction and cannot simultaneously prevent automatic closing. It ensures that the zipper can stably maintain any desired state during use, whether fully open, fully closed, or half-open, effectively preventing accidental opening or closing due to the zipper pull 3 sliding on its own. This significantly improves the reliability and convenience of zipper use and better meets the needs of different scenarios.

[0025] Both sides of the meshing tooth 17 are provided with guide slopes. The guide slopes gradually slope outward from the middle of the locking part to the end. The guide slopes of the locking part can guide the chain tooth 2 during the sliding of the pull head 3, reducing the collision and friction between the locking part and the chain tooth 2.

[0026] The magnetic block 9 is located at the top of the slide groove 7. The magnetic block 9 and the slider 16 have the same polarity at opposite ends. The magnetic block 9 and the slider 16 with the same polarity generate a continuous repulsive force, which can stably push the slider 16 to the bottom of the slide groove 7, ensuring the reliable engagement of the locking tongue 8 and the chain tooth 2.

[0027] The pull tab 10 is hinged to the upper end of the locking tongue 8 via the connecting shaft 11. A collar 12 is provided between the pull tab 10 and the connecting shaft 11. The collar 12 is rotatably sleeved on the connecting shaft 11. The cooperation between the collar 12 and the connecting shaft 11 allows the pull tab 10 to rotate flexibly, making it convenient for users to pull the pull tab 10 from different angles, making the rotation of the pull tab 10 less strenuous and improving the ease of operation.

[0028] The zipper 3 has an outwardly inclined guide plate at the entrance of the channel 4. One end of the guide plate is fixedly connected to the zipper 3, and the other end extends away from the channel 4. The guide plate can guide the chain teeth 2 to smoothly enter the channel 4 and reduce the resistance when the zipper 3 slides.

[0029] The slider 16 end face of the latch 8 is provided with a spherical protrusion 13, and the two ends of the slide groove 7 are provided with limiting blocks 14. The spherical protrusion 13 can abut against the limiting blocks 14 to limit the maximum sliding stroke of the latch 8. A buffer pad is attached to the surface of the limiting block 14. The cooperation between the spherical protrusion 13 and the limiting block 14 can effectively limit the sliding range of the latch 8, preventing the latch 8 from disengaging from the slide groove 7 or colliding with other components due to excessive sliding. The buffer pad can reduce the impact force when the spherical protrusion 13 contacts the limiting block 14, reduce noise, and extend the service life of the components.

[0030] The zipper pull 3 is provided with a wear-resistant strip 15 extending along the length of the channel 4. The wear-resistant strip 15 is in contact with the surface of the zipper tape 1. The wear-resistant strip 15 can reduce the direct friction between the zipper pull 3 and the zipper tape 1, protect the zipper tape 1 and the zipper pull 3, and extend the overall service life of the zipper.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A two-way self-locking double-opening zipper, comprising two parallel zipper straps, wherein each of the opposite edges of the two zipper straps is fixed with zipper teeth arranged sequentially along the length of the zipper straps, characterized in that: It also includes two sliders that can slide independently along the length of the zipper teeth. The two sliders enable the engagement and disengagement of the two zipper strips. The sliders are equipped with a self-locking component and have a hollow frame structure. The inside of the slider has a channel for the zipper teeth on both sides to pass through and engage or disengage. The top of the slider has an integrally formed upward-protruding receiving part. The receiving part has a cavity connected to the channel. The front and rear inner walls of the receiving cavity are symmetrically provided with grooves. The self-locking assembly consists of a latch, a magnetic block, and a pull tab. Both the front and rear ends of the latch have outwardly protruding sliders that can be slidably embedded in the groove. The latch can reciprocate linearly along the extension direction of the groove. The latch extends through the bottom of the receiving cavity into the channel. The lower end face of the latch has meshing teeth that match the chain teeth. The meshing teeth engage with the chain teeth. The slider is magnetic, and the magnetic block generates a continuous force on the slider, keeping the slider at the bottom of the groove. The pull tab is connected to the end of the latch away from the channel.

2. The bidirectional self-locking double-opening zipper according to claim 1, characterized in that: The lower end of the locking tongue extends downward to form a locking part. The locking part passes through the bottom of the receiving cavity and extends into the channel. Guide slopes are provided on both sides of the locking part, and the guide slopes gradually slope outward from the middle of the locking part to the end.

3. The bidirectional self-locking double-opening zipper according to claim 1, characterized in that: The magnetic block is located at the top of the slide, and the magnetic block and the slider have the same polarity at opposite ends.

4. A bidirectional self-locking double-opening zipper according to any one of claims 1-3, characterized in that: The pull tab is hinged to the upper end of the locking tongue via a connecting shaft. A collar is provided between the pull tab and the connecting shaft, and the collar is rotatably sleeved on the connecting shaft.

5. The bidirectional self-locking double-opening zipper according to any one of claims 1-3, characterized in that: The zipper head has an outwardly inclined guide plate at the channel entrance. One end of the guide plate is fixedly connected to the zipper head, and the other end extends away from the channel.

6. The bidirectional self-locking double-opening zipper according to any one of claims 1-3, characterized in that: The slider end face of the latch is provided with a spherical protrusion, and the two ends of the slide groove are provided with limiting blocks. The spherical protrusion can abut against the limiting blocks to limit the maximum sliding stroke of the latch.

7. The bidirectional self-locking double-opening zipper according to any one of claims 1-3, characterized in that: The zipper pull is provided with a wear-resistant strip extending along the length of the channel, and the wear-resistant strip is in contact with the surface of the zipper tape.

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