Circulating zipper

Abstract

The utility model relates to the technical field of zippers, in particular to a circulating zipper which comprises two pieces of base cloth. Zipper teeth; the two pull heads can slide by means of the pull loops to achieve meshing or disengaging of the two zipper teeth, and the meshing directions of the pull loops of the two pull heads are opposite; the limiting assembly is installed at the position, facing an opening in the puller separation direction, in the puller and comprises a pressing block, two pressing rods, connecting ropes and springs, the two connecting blocks are fixed in the puller, the pressing rods are rotationally connected to the connecting blocks, the springs are fixed to the two pressing rods, the connecting ropes are fixed to the other two ends of the two pressing rods, and the pressing rods are rotationally connected to the connecting blocks. The pressing block penetrates through the puller and is in sliding connection with the puller, at least part of the pressing block protrudes out of the puller, and the bottom of the pressing block is fixed to the connecting rope. The spring in the limiting assembly rebounds to enable the bottom of the pressing rod to abut against the surface of the base cloth, so that sliding of the pull head generates resistance, the pull head is limited to a certain position of the base cloth and prevented from sliding freely due to the influence of external force, and the problem that a traditional pull head is difficult to fix is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to zip fastener technical field, concretely is a kind of circulation zip fastener. BACKGROUND

[0002] Zip fastener is a kind of accessory for connecting the opening of clothes, luggage and other articles, which is composed of two toothed tapes and a puller. The working principle of zip fastener is based on the engagement and disengagement of the teeth. When the puller moves along the tape, the wedge-shaped structure inside the puller will make the teeth of the zipper interlock, forming a closed chain, thereby connecting the opening of the article. Conversely, when the puller moves in the opposite direction, the teeth of the zipper gradually separate, and the zip fastener opens.

[0003] However, the existence of the beginning and end of the zip fastener makes the position and direction of the cover or door relative to the zip fastener fixed, thus failing to meet the demand for multi-position and multi-directional opening and closing of the zip fastener cover or door. Based on the above problems, the existing patent with the patent number CN220777580U discloses a kind of annular zip fastener and zip fastener application product. The puller of the annular zip fastener can stay at any position, i.e. the position of opening and closing can be controlled and adjusted.

[0004] However, in the implementation of the above-mentioned annular zip fastener and zip fastener application product, it is found that at least the following problems exist. The better the quality of the puller and the teeth, the more easily the puller is affected by external forces, causing the teeth to gradually separate (for example, when the zip fastener on the clothes is half open, the teeth of the zip fastener often gradually separate when the arm and shoulder move greatly, and the same applies to the circulation zip fastener). This results in that it is difficult to restrict the puller at a certain place in actual use, and it is often affected by external forces, gradually opening, which affects the user's use. UTILITY MODEL CONTENT

[0005] (I) Technical problem solved

[0006] The technical problem to be solved by the utility model is to overcome the shortcomings of the prior art and provide a circulation zip fastener that solves the problems raised in the background technology.

[0007] (II) Technical solution

[0008] In order to achieve the above object, the utility model provides a kind of circulation zipper, comprising: two base cloth, the base cloth is annular;Zipper, it is fixed around on the opposite two sides of the base cloth, two the zipper staggered arrangement;Two sliders, two the slider can be slid by means of pull tab, realize the engagement or disengagement of two the zipper, the pull tab engagement direction of two the slider is opposite;Limiting component, it is installed in the opening of slider towards the separating direction of the slider, the limiting component includes pressing block, two press bars, connecting rope and spring, two connecting blocks are fixed in the slider, the press bar is rotatably connected on the connecting block and is arranged in the shape of "eight", spring is fixed on the two ends of two the press bar with wider spacing, connecting rope is fixed on the other two ends of two the press bar, the pressing block penetrates the slider and is slidably connected with the slider, the pressing block at least partially protrudes the slider, and the bottom of the pressing block is fixed with the connecting rope.

[0009] Optionally, the two press bars are fixed with a hanging ring, and the two ends of the spring are hooked on the hanging ring.

[0010] Optionally, the pressing block protruding part of the slider is fixed with two opposite limiting blocks, and the limiting blocks can limit the pressing block from being completely pressed into the slider.

[0011] Optionally, the bottom of the two press bars is fixed with a rubber material abutting block.

[0012] Optionally, the abutting block is provided with a wave anti-skid line on the side facing the base cloth.

[0013] Optionally, when the spring is in a natural contraction state, the distance between the abutting block and the inner bottom of the slider is matched with the thickness of the base cloth.

[0014] Compared with the prior art, the utility model provides a kind of circulation zipper, with the following beneficial effects:

[0015] The utility model makes the bottom of press bar and the surface of base cloth abut through the spring rebound of limiting component, so that the sliding of slider generates resistance, and then the slider is limited at somewhere of base cloth, to prevent it from sliding randomly under the influence of external force, solve the problem that traditional slider is difficult to fix, improve the stability and convenience of zipper use;

[0016] The utility model makes the two ends of the spring be hooked on the hanging ring, which is more convenient when installing and dismounting the spring, and is conducive to production and manufacturing, maintenance and replacement of the spring.

[0017] The utility model discloses a two pressing rod bottom all fixed with the rubber material's abutting block, when abutting block and chain tooth contact, can buffer the pressure of chain tooth of pressing rod to a certain extent, avoid the abrasion or damage of chain tooth caused by the rigid contact of pressing rod and chain tooth directly, and when the abutting block of pressing rod bottom and chain tooth contact, can produce greater friction, increase the limiting effect of limiting component. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the three -dimensional structure schematic diagram of the utility model;

[0019] Figure 2 It shows that the pull head planar structure schematic diagram shows;

[0020] Figure 3 It shows Figure 2 The right view structure schematic diagram of;

[0021] Figure 4 It shows Figure 3 The internal structure schematic diagram of;

[0022] Figure 5 It shows the structure schematic diagram of abutting block bottom.

[0023] In the drawing: 1, base cloth;2, chain tooth;3, pull head;4, press block;5, pressing rod;6, connecting rope;7, spring;8, connecting block;9, hanging ring;10, limiting block;11, abutting block;12, wave antiskid line. DETAILED DESCRIPTION

[0024] Below, combining the drawings in the embodiment of the utility model, the technical scheme in the embodiment of the utility model is described clearly and completely, obviously, the described embodiment only is a part of embodiment of the utility model, but is not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without making the creative labor all belong to the range of the utility model protection.

[0025] Embodiment: please refer to Figures 1 to 4The utility model discloses a technical scheme is provided: a kind of circulation zipper, comprising: two base cloth 1, base cloth 1 is annular;Zipper 2, it is fixed around on the opposite two sides of base cloth 1, two zipper 2 are staggered arrangement;Two pullers 3, two pullers 3 can be slid by means of pull bar, realize the engagement or disengagement of two zipper 2, the pull bar engagement direction of two pullers 3 is opposite;Limiting component, it is installed in the opening of puller 3 towards puller 3 separation direction, limiting component includes pressing block 4, two press bars 5, connecting rope 6 and spring 7, two connecting blocks 8 are fixed in puller 3, press bar 5 is rotatably connected on connecting block 8 and is arranged as "eight" character, spring 7 is fixed on the two ends of two press bars 5 with relatively wide spacing, connecting rope 6 is fixed on the other two ends of two press bars 5, pressing block 4 penetrates puller 3 and is slidably connected with puller 3, and pressing block 4 at least partially protrudes puller 3, and the bottom of pressing block 4 is fixed with connecting rope 6.

[0026] The circulation zipper with the above structure, under normal conditions, when pressing block 4 is not pressed, spring 7 in limiting component makes the bottom of press bar 5 abut against the surface of base cloth 1, so as to generate resistance for the sliding of puller 3, and then limit puller 3 at a certain place of base cloth 1, to prevent it from sliding randomly under the influence of external force, when it is needed to move puller 3, the user pinches the pull tab of puller 3 with the thumb and index finger, at this time, the bottom of index finger contacts with pressing block 4, the user only needs to make the index finger abut against puller 3, so as to make the index finger press pressing block 4 protruding puller 3, pressing block 4 drives connecting rope 6 to move downward, so as to make press bar 5 rotate, change the angle of the bottom of two press bars 5, so that the bottom of two press bars 5 does not contact with base cloth 1, thereby reducing the resistance for the sliding of puller 3, at this time, the user can easily pull puller 3, to realize the engagement or disengagement of zipper 2, the structure solves the problem that the traditional puller 3 is difficult to fix, and improves the stability and convenience of the use of zipper.

[0027] The two press bars 5 are both fixed with hanging ring 9, and the two ends of spring 7 are hooked on the hanging ring 9, the function of spring 7 is to provide elastic restoring force, so that press bar 5 maintains a certain state when there is no external force, to limit the sliding of puller 3, the hooking mode is more convenient when installing and dismounting spring 7, which is beneficial to the production, maintenance and replacement of spring 7.

[0028] The part of pressing block 4 protruding puller 3 is fixed with two opposite limiting blocks 10, limiting block 10 can limit pressing block 4 from being pressed into puller 3 completely, the main function of pressing block 4 is to change the state of press bar 5 in limiting component by pressing operation, so as to realize the control of the sliding of puller 3, if there is no limitation of limiting block 10, the user may accidentally press pressing block 4 into puller 3 completely when pressing, and it will be more difficult to operate pressing block 4 again, the setting of limiting block 10 can ensure that the stroke of pressing pressing block 4 is relatively fixed each time, to ensure that pressing block 4 will not be pressed into puller 3 completely.

[0029] The bottom of the two pressure rods 5 is fixed with a rubber material abutting block 11. Rubber is a relatively soft material. When the abutting block 11 contacts the chain tooth 2, it can buffer the pressure of the pressure rod 5 on the chain tooth 2 to a certain extent, avoiding the direct hard contact between the pressure rod 5 and the chain tooth 2, which can cause wear or damage to the chain tooth 2. When the abutting block 11 at the bottom of the pressure rod 5 contacts the chain tooth 2, a large friction force can be generated, increasing the limiting effect of the limiting assembly.

[0030] The side of the abutting block 11 facing the base cloth 1 is provided with a wave anti-skid line 12. The existence of the wave anti-skid line 12 significantly increases the friction between the abutting block 11 and the base cloth 1, greatly improving the anti-skid ability compared with the smooth surface of the abutting block 11. Even under the condition of receiving a larger external force, the puller 3 can be more effectively prevented from sliding, ensuring the stability of the zipper in the limiting state.

[0031] When the spring 7 is in a natural contraction state, the distance between the abutting block 11 and the inner bottom of the puller 3 is adapted to the thickness of the base cloth 1. When the puller 3 is in a limiting state, it is ensured that the abutting block 11 can provide sufficient friction to prevent the puller 3 from sliding, thereby achieving effective limiting of the puller 3 and ensuring that the zipper cannot be easily opened due to external force.

[0032] Working principle:

[0033] In the normal non-operating state, the spring 7 in the limiting assembly is in a natural contraction state, and its elastic restoring force acts on the two pressure rods 5 which are "eight" shaped and rotatably connected to the connecting block 8. The bottom of the pressure rod 5 is fixed with a rubber material abutting block 11. At this time, the distance between the abutting block 11 and the inner bottom of the puller 3 is just adapted to the thickness of the base cloth 1, so that the abutting block 11 is tightly abutted on the base cloth 1. Because the side of the abutting block 11 facing the base cloth 1 is provided with a wave anti-skid line 12, the friction between the abutting block 11 and the base cloth 1 and the chain tooth 2 is greatly increased, effectively preventing the puller 3 from sliding on the chain tooth 2, and stably limiting the puller 3 at a certain position of the base cloth 1, preventing the zipper from being accidentally opened due to external force, and solving the problem that the traditional puller 3 is difficult to fix;

[0034] When the user needs to move the puller 3, the operation process is convenient. The user holds the pull tab of the puller 3 with the thumb and the index finger. At this time, the bottom of the index finger naturally contacts the pressing block 4 protruding from the puller 3. The user only needs to press the pressing block 4 by pressing the puller 3 with the index finger. When the pressing block 4 is pressed downward, the connecting rope 6 moves downward synchronously. The movement of the connecting rope 6 causes the pressure rod 5 connected thereto to rotate around the connecting block 8, changing the angle of the bottom of the two pressure rods 5. The abutting block 11 originally tightly abutted on the base cloth 1 is separated from the base cloth 1 by the rotation of the pressure rod 5, and no longer generates resistance to the sliding of the puller 3. At this time, the user can easily pull the puller 3 to achieve the engagement or disengagement of the chain tooth 2.

[0035] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A recirculating zipper characterized in that, The utility model relates to a fastener, including: Two base cloths (1), the base cloth (1) is annular; Yarns (2) are fixed around the opposite two sides of the base cloth (1), and the two yarns (2) are staggered arrangement; Two pullers (3), the puller (3) can slide by means of pull handle, realizes the engagement or disengagement of two yarns (2), and the pull handle engagement direction of two pullers (3) is opposite; Limiting assembly is installed in the opening of puller (3) towards the separating direction of puller (3), and the limiting assembly includes pressing block (4), two press bars (5), connecting rope (6) and spring (7), the puller (3) is fixed with two connecting blocks (8), the press bar (5) is rotatably connected on the connecting block (8) and is arranged in " eight ” type, and the spring (7) is fixed on the two ends of two press bars (5) with wider spacing, the other two ends of two press bars (5) are fixed with connecting rope (6), the pressing block (4) penetrates through puller (3) and is slidably connected with puller (3), and the pressing block (4) at least partially projects puller (3), and the bottom of pressing block (4) is fixed with connecting rope (6).

2. A recirculating zipper as defined in claim 1, wherein: The hanging ring (9) is fixed on two press bars (5), and the both ends of spring (7) are hooked on hanging ring (9).

3. A recirculating zipper as defined in claim 1, wherein: The part of pressing block (4) projecting puller (3) is fixed with two opposite limiting blocks (10), and the limiting block (10) can limit the complete pressing of pressing block (4) into puller (3).

4. A recirculating zipper as defined in claim 1, wherein: The bottom of two press bars (5) is fixed with the rubber material resistance block (11).

5. A recirculating zipper as defined in claim 4, wherein: The side of resistance block (11) towards base cloth (1) is provided with wave antiskid line (12).

6. A recirculating zipper as defined in claim 5, wherein: When the spring (7) is in natural contraction state, the spacing between resistance block (11) and the bottom of puller (3) is adapted to the thickness of base cloth (1).

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