Multi-layer extensible multi-chain zipper

Abstract

The utility model discloses a multi-layer extensible multi-chain zipper, which relates to the technical field of zippers and comprises a fixed zipper belt and a first extensible zipper belt, the inner side of the fixed zipper belt is fixedly connected with fixed zipper teeth, and the inner side of the first extensible zipper belt is fixedly connected with first extensible zipper teeth. The bottom of the first extension chain belt is fixedly provided with a second extension chain belt, the inner side of the second extension chain belt is fixedly connected with second extension chain teeth, the bottom of the second extension chain belt is fixedly provided with a third extension chain belt, and the inner side of the third extension chain belt is fixedly connected with third extension chain teeth. According to the multi-layer extensible multi-chain zipper, when the fixed zipper teeth are connected with the first extensible zipper teeth, the second extensible zipper teeth and the third extensible zipper teeth respectively, the surrounding degree of clothes provided with the multi-layer extensible multi-chain zipper can be changed, and the using effect of the multi-layer extensible multi-chain zipper is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to zip fastener technical field, concretely is a kind of multilayer expandable multi-chain zipper. BACKGROUND

[0002] Zipper is connected by continuous arrangement of zipper teeth, and the article is combined or separated, and zipper is widely used in today's clothing or luggage, but the existing zipper still has certain defects in the process of use;

[0003] As the application number CN202123092055.4 proposes a kind of anti-pinch zipper, it includes two chain belts and a zipper head, the inner side of the chain cloth of each chain belt is folded into a chain tooth belt and sliding space to the front, the chain tooth is arranged on the chain tooth belt, the zipper head has top plate, top plate outside is provided with pull tab and connecting device, the center of top plate inner face is provided with base core, the two side edges of top plate inner face are provided with side plate, the bottom end of side plate has second guide plate, the inner edge of second guide plate protrudes into convex plate to the center direction, the inner edge of convex plate and base core are separated into Y-shaped guide cloth seam, by this, the chain tooth and chain tooth belt of two chain belts are threaded through the zipper head, so that the top plate, connecting device and pull tab of zipper head are located in the front of zipper, two chain cloths are stretched out and unfolded through Y-shaped guide cloth seam to cover the back of zipper head, when the zipper head moves, the second guide plate slides in the sliding space below the chain tooth belt, to achieve the purpose of anti-pinch, in the actual use process, when the zipper head is moved and stopped at different positions, the unclosed chain cloth and chain tooth are easily separated by external pulling force, and when the separating force acts on the zipper head, the zipper head is prone to sliding, reducing stability, and when applied to clothing, it is not convenient to adjust the closure according to the circumference of the body, reducing the use effect.

[0004] Therefore, we propose a kind of multilayer expandable multi-chain zipper to solve the problems raised in the above. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of multilayer expandable multi-chain zipper to solve the problems that zipper head is prone to shaking and reduce stability and not convenient to adjust adaptively according to the circumference of the body and reduce use effect raised in the above background.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of multilayer expandable multi-chain zipper, including fixed chain belt and first expansion chain belt,

[0007] The inner side of the fixed chain belt is fixedly connected with a fixed chain tooth, the inner side of the first expansion chain belt is fixedly connected with a first expansion chain tooth, the bottom of the first expansion chain belt is fixedly installed with a second expansion chain belt, the inner side of the second expansion chain belt is fixedly connected with a second expansion chain tooth, the bottom of the second expansion chain belt is fixedly installed with a third expansion chain belt, and the inner side of the third expansion chain belt is fixedly connected with a third expansion chain tooth.

[0008] The outer side of the fixed chain tooth is slidably installed with a zipper head.

[0009] The zipper head and the fixed chain belt are connected with an anti-skid positioning mechanism.

[0010] The top of the zipper head is installed with a rotating reset mechanism.

[0011] Preferably, the first expansion chain belt, the second expansion chain belt and the third expansion chain belt are stacked and distributed, and the first expansion chain tooth, the second expansion chain tooth and the third expansion chain tooth are distributed at equal intervals.

[0012] The above structure design makes the fixed chain tooth connect with the first expansion chain tooth, the second expansion chain tooth and the third expansion chain tooth respectively, so as to expand and contract the circumference of the garment installed with the multi-layer expandable multi-chain zipper, thereby improving the use effect of the multi-layer expandable multi-chain zipper.

[0013] Preferably, the anti-skid positioning mechanism comprises a fixed plate fixedly installed on the top of the zipper head, an active rod penetrating through the inside of the fixed plate, a connecting seat fixedly installed on the end of the active rod away from the fixed plate, a pressing plate fixedly installed on the top of the connecting seat, and a reset spring sleeved on the outer circle of the active rod between the connecting seat and the fixed plate.

[0014] Preferably, the anti-skid positioning mechanism further comprises a clamping block fixedly installed on the bottom of the connecting seat, a fixed block fixedly installed on one side of the zipper head, and a limiting spring fixedly connected between the fixed block and the clamping block.

[0015] Preferably, the anti-skid positioning mechanism further comprises a fixed strip fixedly installed on the top surface of the fixed chain belt, and the inside of the fixed strip is equally spaced to form a clamping groove.

[0016] Preferably, the active rod is slidably connected with the fixed plate, the connecting seat and the fixed plate constitute a telescopic structure through the reset spring, the clamping block and the fixed block constitute a telescopic structure through the limiting spring, and the clamping block is movably clamped and connected with the clamping groove.

[0017] The above structure design facilitates the positioning of the zipper head at different positions by the anti-skid positioning mechanism, thereby preventing the sliding of the zipper head due to tension, and improving the anti-skid effect and use stability of the multi-layer expandable multi-chain zipper.

[0018] Preferably, the rotating reset mechanism comprises a positioning seat symmetrically mounted on the top of the zipper head, a rotating rod is rotatably connected inside the positioning seat, the inner end of the rotating rod is fixedly connected with a pull tab, and a torsion spring is sleeved outside the rotating rod between the pull tab and the positioning seat.

[0019] Preferably, the two ends of the torsion spring are fixedly connected with the positioning seat and the pull tab respectively, and the pull tab and the rotating rod form an elastic reset structure with the rotating reset mechanism through the torsion spring.

[0020] With the above structure, the rotating reset mechanism can actively reset by using the elastic reset structure itself, and the anti-skid positioning mechanism can be further positioned when resetting, thereby improving the stability of the anti-skid positioning mechanism and the use effect of the multi-layer expandable multi-chain zipper.

[0021] Compared with the prior art, the multi-layer expandable multi-chain zipper has the advantages that:

[0022] 1. The fixed chain belt, the first expansion chain belt, the second expansion chain belt and the third expansion chain belt can fix the fixed chain teeth, the first expansion chain teeth, the second expansion chain teeth and the third expansion chain teeth respectively, and when the fixed chain teeth are connected with the first expansion chain teeth, the second expansion chain teeth and the third expansion chain teeth respectively, the circumference of the garment on which the multi-layer expandable multi-chain zipper is installed can be changed, thereby improving the use effect of the multi-layer expandable multi-chain zipper.

[0023] 2. The anti-skid positioning mechanism can position the zipper head at different positions when the zipper head is closed, thereby preventing the zipper head from sliding due to external pulling force, and the rotating reset mechanism can reset and close, thereby facilitating the anti-skid positioning mechanism to be positioned when resetting, further improving the positioning stability of the anti-skid positioning mechanism, and improving the anti-skid effect and use stability of the multi-layer expandable multi-chain zipper. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a side view of the connection structure of the utility model;

[0025] Figure 2 It is a side view of the exploded structure of the utility model;

[0026] Figure 3 It is a connection structure diagram of the zipper head, the anti-skid positioning mechanism and the rotating reset mechanism of the utility model;

[0027] Figure 4 It is a side view of the anti-skid positioning mechanism of the utility model;

[0028] Figure 5The utility model discloses a rotating reset mechanism decomposition structure schematic view.

[0029] In the drawing: 1, fixed chain belt, 2, first expansion chain belt, 3, fixed chain tooth, 4, first expansion chain tooth, 5, second expansion chain belt, 6, second expansion chain tooth, 7, third expansion chain belt, 8, third expansion chain tooth, 9, zipper head, 10, fixed plate, 11, movable rod, 12, connecting seat, 13, pressing plate, 14, reset spring, 15, clamping block, 16, limit spring, 17, fixed block, 18, fixed strip, 19, clamping groove, 20, positioning seat, 21, rotating rod, 22, pull piece, 23, torsional spring. DETAILED DESCRIPTION

[0030] The technical scheme in the embodiments of the utility model will be apparently and completely described below with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative work belong to the range protected by the utility model.

[0031] Please refer to Figures 1-5 The utility model provides a kind of technical scheme: a multi-layer expandable multi-chain zipper, including fixed chain belt 1 and first expansion chain belt 2, the inner side of fixed chain belt 1 is fixedly connected with fixed chain tooth 3, the inner side of first expansion chain belt 2 is fixedly connected with first expansion chain tooth 4, the bottom of first expansion chain belt 2 is fixedly installed with second expansion chain belt 5, the inner side of second expansion chain belt 5 is fixedly connected with second expansion chain tooth 6, the bottom of second expansion chain belt 5 is fixedly installed with third expansion chain belt 7, the inner side of third expansion chain belt 7 is fixedly connected with third expansion chain tooth 8, first expansion chain belt 2, second expansion chain belt 5 and third expansion chain belt 7 are stacked distribution, first expansion chain tooth 4, second expansion chain tooth 6 and third expansion chain tooth 8 are equidistant distribution;

[0032] The design of above-mentioned structure, when fixed chain tooth 3 is connected with first expansion chain tooth 4, second expansion chain tooth 6 and third expansion chain tooth 8 respectively, the circumference of garment installed with the multi-layer expandable multi-chain zipper is minimum when fixed chain tooth 3 is connected with first expansion chain tooth 4, and the circumference of garment installed with the multi-layer expandable multi-chain zipper is maximum when fixed chain tooth 3 is connected with third expansion chain tooth 8, wherein the setting of fixed chain belt 1 and first expansion chain belt 2 facilitates the connection of the multi-layer expandable multi-chain zipper with garment.

[0033] The outer side of the fixed chain tooth 3 is slidingly installed with a zipper head 9, and a anti-skid positioning mechanism is connected between the zipper head 9 and the fixed chain 1. The anti-skid positioning mechanism comprises a fixed plate 10 fixedly installed on the top of the zipper head 9, an active rod 11 penetrating through the inside of the fixed plate 10, the active rod 11 being slidingly connected with the fixed plate 10, a connecting seat 12 fixedly installed on the end of the active rod 11 away from the fixed plate 10, a pressing plate 13 fixedly installed on the top of the connecting seat 12, a reset spring 14 sleeved on the outer circle of the active rod 11 between the connecting seat 12 and the fixed plate 10, the connecting seat 12 and the fixed plate 10 constituting an extension structure through the reset spring 14, a clamping block 15 fixedly installed on the bottom of the connecting seat 12, a fixed block 17 fixedly installed on one side of the zipper head 9, a limiting spring 16 fixedly connected between the fixed block 17 and the clamping block 15, the clamping block 15 and the fixed block 17 constituting an extension structure through the limiting spring 16, and a fixed strip 18 fixedly installed on the top surface of the fixed chain 1, the inside of the fixed strip 18 being equally spaced to form clamping grooves 19, the clamping block 15 being movably clamped and connected with the clamping grooves 19.

[0034] The above structure is designed so that, during the pulling of the zipper head 9, the inward extrusion of the pressing plate 13 can drive the connecting seat 12 at the bottom to move synchronously, and then the connecting seat 12 drives the active rod 11 to slide and contract in the inside of the fixed plate 10, and the reset spring 14 is compressed during the contraction, and the contraction of the connecting seat 12 also drives the clamping block 15 at the bottom to contract synchronously, and the limiting spring 16 is compressed in cooperation with the fixed block 17, at this time the clamping block 15 and the clamping grooves 19 are in a separated state, at this time the movement of the zipper head 9 can realize the double-sided closing work of the multi-layer expandable multi-chain zipper, and when the zipper head 9 moves to a suitable position, the pressing plate 13 is released, at this time the reset spring 14 pushes the connecting seat 12 to reset, and the limiting spring 16 pushes the clamping block 15 to reset, so that the clamping block 15 is clamped with the corresponding clamping groove 19, in order to stably position the zipper head 9 and prevent the zipper head 9 from sliding.

[0035] A rotating reset mechanism is installed on the top of the zipper head 9, the rotating reset mechanism comprising positioning seats 20 symmetrically installed on the top of the zipper head 9, a rotating rod 21 rotatably connected in the inside of the positioning seat 20, a pull tab 22 fixedly connected with the inner end of the rotating rod 21, a torsion spring 23 sleeved on the outer circle of the rotating rod 21 between the pull tab 22 and the positioning seat 20, the two ends of the torsion spring 23 being fixedly connected with the positioning seat 20 and the pull tab 22 respectively, the pull tab 22 and the rotating rod 21 constituting an elastic reset structure with the rotating reset mechanism through the torsion spring 23;

[0036] The design of the structure makes the puller 22 drive the rotating rod 21 to rotate in the inside of the positioning seat 20 by being upwardly poked when the zipper puller 9 needs to be moved, at this time, the puller 22 is separated from the movable rod 11 to control the anti-skid positioning mechanism, and after the zipper puller 9 is moved, the torsional spring 23 drives the puller 22 and the rotating rod 21 to rotate and reset, and the reset puller 22 is in abutment with the movable rod 11 to position, thereby reinforcing the stability of the anti-skid positioning mechanism.

[0037] Therefore, a series of work is completed, and the content not described in detail in the specification belongs to the prior art known by the person skilled in the art.

[0038] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A multi-layer expandable multi-chain zipper, comprising a fixed chain strap (1) and a first extension chain strap (2), characterized in that: The inner side of the fixed chain belt (1) is fixedly connected with a fixed chain tooth (3), the inner side of the first extended chain belt (2) is fixedly connected with a first extended chain tooth (4), the bottom of the first extended chain belt (2) is fixedly installed with a second extended chain belt (5), the inner side of the second extended chain belt (5) is fixedly connected with a second extended chain tooth (6), the bottom of the second extended chain belt (5) is fixedly installed with a third extended chain belt (7), and the inner side of the third extended chain belt (7) is fixedly connected with a third extended chain tooth (8). A zipper head (9) is slidably installed on the outer side of the fixed chain tooth (3); An anti-slip positioning mechanism is connected between the zipper head (9) and the fixed chain strap (1); The top of the zipper head (9) is equipped with a rotation reset mechanism.

2. The multi-layer expandable multi-chain zipper according to claim 1, characterized in that: The first extended chain band (2), the second extended chain band (5) and the third extended chain band (7) are stacked and distributed, and the first extended chain teeth (4), the second extended chain teeth (6) and the third extended chain teeth (8) are distributed at equal intervals.

3. The multi-layer expandable multi-chain zipper according to claim 1, characterized in that: The anti-slip positioning mechanism includes a fixed plate (10) fixedly installed on the top of the zipper head (9). A movable rod (11) runs through the inside of the fixed plate (10). A connecting seat (12) is fixedly installed at the end of the movable rod (11) away from the fixed plate (10). A pressure plate (13) is fixedly installed on the top of the connecting seat (12). A return spring (14) is sleeved on the outer ring of the movable rod (11) between the connecting seat (12) and the fixed plate (10).

4. A multi-layer expandable multi-chain zipper according to claim 3, characterized in that: The anti-slip positioning mechanism also includes a locking block (15) fixedly installed at the bottom of the connecting seat (12), a fixing block (17) fixedly installed on one side of the zipper head (9), and a limit spring (16) fixedly connected between the fixing block (17) and the locking block (15).

5. A multi-layer expandable multi-chain zipper according to claim 4, characterized in that: The anti-slip positioning mechanism also includes a fixing strip (18) fixedly installed on the top surface of the fixing chain (1), and the fixing strip (18) has slots (19) evenly spaced inside.

6. A multi-layer expandable multi-chain zipper according to claim 5, characterized in that: The movable rod (11) is slidably connected to the fixed plate (10), the connecting seat (12) forms a telescopic structure with the fixed plate (10) through the return spring (14), the locking block (15) forms a telescopic structure with the fixed block (17) through the limiting spring (16), and the locking block (15) is movably engaged with the locking groove (19).

7. A multi-layer expandable multi-chain zipper according to claim 1, characterized in that: The rotation reset mechanism includes a positioning seat (20) symmetrically installed on the top of the zipper head (9). The positioning seat (20) is rotatably connected to a rotating rod (21). The inner end of the rotating rod (21) is fixedly connected to a pull tab (22). A torsion spring (23) is sleeved on the outer ring of the rotating rod (21) between the pull tab (22) and the positioning seat (20).

8. A multi-layer expandable multi-chain zipper according to claim 7, characterized in that: The two ends of the torsion spring (23) are fixedly connected to the positioning seat (20) and the pull plate (22) respectively. The pull plate (22) and the rotating rod (21) form an elastic reset structure with the rotation reset mechanism through the torsion spring (23).

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