CN219845321U - Bottom stop device of double-open-end zipper and assembly structure thereof - Google Patents

Abstract

The utility model discloses a bottom stop device of a double-tailed zipper and an assembling structure thereof, which can be applied to a double-tailed anti-clamping zipper and a double-tailed invisible zipper. In particular, the stop pin unit and the movable pin unit are respectively provided with a chain cloth groove, a clamping structure and other special structures, so that the purposes of maintaining the configuration of the reverse-folded chain toothed belt on the inner side edge of the chain cloth, resisting the transverse pulling force applied to the chain cloth, easily inserting and extracting the movable pins and the like can be achieved.

Description

Bottom stop device of double-open-end zipper and assembly structure thereof

Technical Field

The utility model belongs to the field of zippers, and particularly relates to a bottom stop device of a double-open-ended zipper and an assembly structure of the bottom stop device.

Background

Zippers are commonly used in clothing today, including pockets of clothing, openings for trousers/skirts, or two flaps of an outer garment, however, if the clothing is provided with an inner garment, the zippers may be clamped to the cloth of the inner garment when the zippers move, so that the zippers move unevenly. If the zipper is seriously rolled into the lining cloth, the whole zipper head is blocked and cannot go in and out completely, and destructive repair is often needed. For this purpose, the prior art proposes various anti-pinch zipper designs, such as those shown in WO2014033926A1, US6701584B2, EP3289908A1, CN107567291A, CN106333432A, CN104106888A, CN211298642U, etc. However, the above technology is not ideal, the applicant has proposed an anti-pinch zipper (patent number M624460 and filed an utility model application) which is mainly characterized in that the inner side edge of the zipper cloth is reversely folded into a zipper tooth belt, then the zipper teeth are combined with the front surface of the zipper tooth belt, and then the zipper head with a special structure drives the two zipper tooth belts to be combined or separated, when the zipper head slides, the two wings on the back surface of the zipper head can move in the sliding space below the zipper tooth belt, and the blocking effect of the zipper cloth is utilized, so that the two wings do not contact with the lining of clothes, the anti-pinch function can be achieved, and the zipper can be applied to a single split-end zipper.

In the prior art, there is a split zipper (for example, as shown in US09549593B 2), which is often applied to a top fly of an outer sleeve, wherein two zipper sliders are disposed between two zipper tapes of one zipper, and a lower stop device capable of being engaged with and separated from the two zipper tapes is disposed at the lower ends of the two zipper tapes. However, the above-mentioned anti-pinch slide fastener structure proposed by the applicant has a structure feature that the inner side edge of the slider is folded back, which is completely different from the feature that the inner side edge of the slider of a conventional split-tail slide fastener is not folded back, so that the conventional bottom stop device of the split-tail slide fastener is not suitable for the double split-tail anti-pinch slide fastener. In addition, the conventional open-end concealed slide fastener structure has a structure in which the inner side edge of the fastener tape is folded back into a fastener tape, and the fastener element is bonded to the fastener tape (for example, as shown in US5586370 a). Therefore, how to provide a lower stop device suitable for the double-open-end anti-pinch zipper and the double-open-end invisible zipper, which can stabilize the reverse folding structure of the inner side edge of the zipper cloth, so that the zipper has better transverse tensile strength, and the lower stop end of the zipper is easier to penetrate and the like is the problem to be positively overcome by the utility model.

Disclosure of Invention

The utility model aims to solve the technical problems of providing a bottom stop device of a double-open-end zipper and an assembly structure thereof, which can be applied to the lower ends of chain belts of the double-open-end anti-pinch zipper, the double-open-end invisible zipper or other double-open-end zippers, fix the chain toothed belts reversely folded at the inner side edges of the zipper cloth, prevent the zipper head from being separated from the zipper downwards and enable the two chain belts to be mutually linked or completely separated, stabilize the reverse-folded chain toothed belt shape of the anti-pinch zipper chain cloth and have better transverse tension resistance effect, and can be clamped on the bottom stop device when the zipper head slides downwards to the bottom stop device through the structural design of the bottom stop device, and have the effects of easy penetration, use and the like.

In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a lower end of two open-ended zippers, it is used for combining respectively at two chain belt lower extreme of a two open-ended zippers, as the terminal part that the zip fastener head of this two open-ended zippers slided, contains a stop pin unit and a movable pin unit, and this stop pin unit and the inboard limit of this movable pin unit can draw together and lock each other together, wherein:

the stop pin unit is used for injection molding at the lower end of a first chain cloth of one of the two chain belts and comprises a stop pin, a first back plate, a first chain cloth groove, a stop block and a first clamping block which are integrally molded; the retaining pin is a first strip-shaped body formed on the inner side edge of the front surface of the first backboard, the retaining pin extends from the top edge of the first backboard to the bottom edge of the first backboard along the inner side edge of the first backboard, and the upper end of the retaining pin is used for being aligned with the lower end of the sprocket of the inner side edge of the first chain cloth; the first backboard is connected to the rear of the stop pin and extends to the outer side edge of the stop pin to form a board body; the first chain cloth groove is formed between the stop pin and the first backboard and is provided with a first opening facing the upper end of the stop pin and the outer side edge of the stop pin; the stop block is formed in front of the bottom edge of the first backboard and protrudes forwards from the front surface of the first backboard, and the lower end of the stop pin is connected with the inner side end of the stop block; the first clamping block is formed on the outer side edge of the front face of the first backboard, and a first clamping gap is formed between the first clamping block and the first backboard;

the movable pin unit is used for injection molding at the lower end of a second chain cloth of the other chain belt of the two chain belts and comprises a movable pin, a second backboard, a second chain cloth groove and a second clamping block which are integrally molded; the movable pin is a second strip-shaped body formed on the inner side edge of the front surface of the second backboard, the movable pin extends from the top edge of the second backboard to the bottom edge of the second backboard along the inner side edge of the second backboard or protrudes out of the bottom edge of the second backboard, and the upper end of the movable pin is used for being aligned with the lower end of the sprocket of the inner side edge of the second chain cloth; the second backboard is connected to the rear of the movable pin and extends to the outer side of the movable pin to form a board body; the second chain cloth groove is formed between the movable pin and the second backboard and is provided with a second opening facing the upper end of the movable pin and the outer side edge of the movable pin; the second clamping block is formed on the outer side edge of the front face of the second backboard, and a second clamping gap is formed between the second clamping block and the second backboard.

In the above-mentioned bottom stop device of the double-open-ended zipper, the first strip-shaped body of the stop pin has a first upper section and a first lower section, the first upper section is parallel to the inner side edge of the first zipper cloth, the first lower section extends obliquely downward toward the outer side edge of the first upper section until connecting to the inner side end of the stop block; the second strip-shaped body of the movable pin is provided with a second upper section part and a second lower section part, the second upper section part is parallel to the inner side edge of the second chain cloth, and the second lower section part extends obliquely downwards towards the outer side edge of the second upper section part until reaching the bottom edge of the second backboard.

In the bottom stop device of the double-open-ended zipper, the stop block is provided with a through hole, and the through hole is communicated between the top surface and the bottom surface of the stop block and is used for allowing the component of the zipper head to penetrate through the through hole.

In the bottom stop device of the double-open-ended zipper, the lower end of the first clamping block is connected to the outer side end of the stop block, and a concave cambered surface is arranged between the first clamping block and the stop block.

In the bottom stop device of the double-open-ended zipper, the front surface of the inner side edge of the first backboard is provided with a first connecting part connected to the rear surface of the stop pin, and the first connecting part is adjacent to the first chain cloth groove; the front of the inner side of the second backboard is provided with a second connecting part connected with the rear of the movable pin, and the second connecting part is adjacent to the second chain cloth groove.

In the bottom stop device of the double-open-ended zipper, the first backboard and the first clamping block are connected together through a first connecting pin; the second backboard and the second clamping block are connected together through a second connecting pin.

In the bottom stop device of the double-open-ended zipper, the inner side edge of the stop pin protrudes a first clamping convex block, the inner side edge of the movable pin protrudes a second clamping convex block, and the second clamping convex block is provided with a clamping groove; and when the movable pin unit and the stop pin unit are combined, the first clamping convex block is embedded into the clamping groove.

Compared with the prior art, the utility model has the beneficial effects that:

1. can fix the reverse-folded zipper tooth belt shape of the inner side edges of the two-chain cloth of the double-open-end anti-pinch zipper. The utility model can be applied to the anti-pinch zipper shown in the patent number M624460, so that the reversely folded zipper teeth strips on the inner side edge of the anti-pinch zipper chain cloth extend into the chain cloth grooves of the stop pin unit and the movable pin unit, and the reversely folded zipper teeth strips and the sliding space thereof are stabilized.

2. Has better transverse tension resistance. Because the double-open-end anti-pinch zipper is usually used for two front flies of an outer sleeve and is often pulled by a user to separate or plug the two front flies together, the lower stop device of the double-open-end anti-pinch zipper has better transverse tension resistance through the structure of clamping and shaping such as a back plate, a clamping block and the like which can be injection molded on the front and back surfaces of the zipper cloth, can more effectively maintain the anti-pinch structure of the reverse folding shape of the zipper cloth, and can be more easily penetrated when the zipper is opened.

3. The stop block of the stop pin unit can be used as a position for applying force to the lower dead point of the zipper head and fingers. The stop block of the stop pin unit protrudes in front of the bottom edge of the first backboard, and can stop the zipper puller to serve as a stop point of the zipper puller. Meanwhile, the inner side end of the stop block is connected with the stop pin, the outer side end of the stop block is connected with the lower end of the first clamping block, so that a stable structure is formed, and the stop pin can be prevented from overturning and deforming forwards. Furthermore, a concave cambered surface is arranged between the first clamping block and the stop block, and when a user holds the movable pin of the movable pin unit in hand and inserts the zipper head or pulls out the zipper head reversely, the stop block can be used as a point for applying force by holding the other hand.

The present utility model also provides an assembly structure of a bottom stop device of a double-open-ended zipper, comprising: a double split-end zipper having two stringers and two sliders driving the two stringers to be coupled to or decoupled from each other; the two chain belts are provided with a first chain cloth, a second chain cloth and two chain teeth respectively combined with the first chain cloth and the second chain cloth; the inner side edges of the first chain cloth and the second chain cloth are respectively reversely folded towards the front side and the outer side edge of the second chain cloth to respectively form reversely folded sprocket belts, a sliding space is formed between the first chain cloth and the second chain cloth and the sprocket belts respectively, and the opening side of the sliding space is towards the outer side edge of the chain cloth; the two chain teeth are combined on the chain tooth belt, so that the chain teeth are respectively positioned on the front surfaces of the first chain cloth and the second chain cloth, and the back surfaces of the first chain cloth and the second chain cloth respectively shield the chain teeth;

the stop pin unit is integrally injection-molded at the lower end of the first chain cloth, the near lower end of the first chain cloth and the reverse folded inner side edge of the first chain cloth extend into and are fixed in the first chain cloth groove, the lower end of the sliding space of the first chain cloth is aligned with the upper end of the first chain cloth groove, and the upper end of the stop pin is jointed at the end part of the toothed belt of the first chain cloth; the back of the near lower end of the first chain cloth is attached to the front of the first backboard and transversely extends through the first crack, so that the first chain cloth extends to protrude out of the outer side edge of the first backboard, and the front of the first backboard is closely attached to the back of the first chain cloth; the stop block protrudes forwards from the front surface of the first backboard to the lower end of the front surface of the first zipper cloth and is used for blocking the zipper head when the zipper head slides downwards; the first clamping block is attached to the front face of the first chain cloth and clamps the first chain cloth together with the first backboard positioned on the back face of the first chain cloth; a kind of electronic device with high-pressure air-conditioning system

The movable pin unit is integrally injection-molded at the lower end of the second chain cloth, the near lower end of the second chain cloth and the reverse folded inner side edge thereof extend into and are fixed in the second chain cloth groove, the lower end of the sliding space of the second chain cloth is aligned with the upper end of the second chain cloth groove, and the upper end of the movable pin is jointed at the end part of the sprocket belt of the second chain cloth; the back of the near lower end of the second chain cloth is attached to the front of the second backboard and transversely extends through the second crack, so that the second chain cloth extends to protrude out of the outer side edge of the second backboard, and the front of the second backboard is closely attached to the back of the second chain cloth; the second clamping block is attached to the front face of the second chain cloth and clamps the second chain cloth together with the second backboard located on the back face of the second chain cloth.

In the above-mentioned assembly structure of the bottom stop device of the double-open-ended zipper, the first back plate and the first clamping block are connected together by a first connecting pin, and the first connecting pin penetrates through the first zipper cloth.

In the above-mentioned assembly structure of the bottom stop device of the double-open-ended zipper, the second back plate and the second clamping block are connected together by a second connecting pin, and the second connecting pin penetrates through the second zipper cloth.

The features and advantages of the present utility model will be disclosed in detail in the following detailed description and the accompanying drawings.

Drawings

The utility model is further described with reference to the drawings and detailed description which follow:

FIG. 1 is a front schematic view of the bottom stop assembly of the present utility model applied to a dual split tail anti-pinch zipper;

FIG. 2 is a schematic rear view of the utility model's bottom stop device applied to a dual split end anti-pinch zipper;

FIG. 3 is a schematic view of the two zipper sliders or reverse pull out of the dual split tail anti-pinch zipper of the present utility model with the movable pin inserted;

FIG. 4 is a schematic view of two zipper sliders of the dual split tail anti-pinch zipper of the present utility model with movable pins inserted therein;

FIG. 5 is a schematic view of the upper slider of the dual split end anti-pinch zipper of the present utility model being pulled up to cause the two stringers to be joined;

FIG. 6 is an enlarged schematic view of the front face construction of the bottom stop assembly of the present utility model applied to a dual split tail anti-pinch zipper;

FIG. 7 is a schematic view of the lower slider of the dual split end anti-pinch zipper of the present utility model being pulled up to separate the two stringers;

FIG. 8 is a front perspective view of the bottom stop assembly of the present utility model;

FIG. 9 is a schematic front view of the bottom stop assembly of the present utility model;

FIG. 10 is a perspective view showing a first view of the bottom stop device of the present utility model in a separated state;

FIG. 11 is a perspective view showing a second view of the bottom stop device of the present utility model in a separated state;

FIG. 12 is a rear perspective view of the bottom stop of the present utility model and a slider;

FIG. 13 is a schematic cross-sectional view of the lower stop of the present utility model stopping the slider;

FIG. 14 is a rear perspective view of the bottom stop of the dual split end anti-pinch zipper head of the present utility model;

FIG. 15 is a schematic cross-sectional view showing the combination of the preferred embodiment of the stopper pin unit and the first link fabric;

FIG. 16 is a schematic cross-sectional view showing the combination of the movable pin unit and the second chain cloth according to the preferred embodiment of the present utility model;

FIG. 17 is a schematic rear view of the bottom stop assembly of the present utility model applied to a dual open-ended concealed slide fastener;

FIG. 18 is a schematic front view of the bottom stop device of the present utility model applied to a dual open-ended concealed slide fastener.

Wherein:

10. a stopper pin unit; 11. stop the tip; 111. a first upper section; 112. a first lower section; 12. a first back plate; 13. a first chain cloth groove; 131. a first opening; 14. a stop block; 141. a through hole; 142. a concave cambered surface; 15. a first clamping block; 16. a first nip; 17. a first connection portion; 18. a first connection pin; 19. a first clamping lug;

20. a movable pin unit; 21. a movable pin; 211. a second upper section; 212. a second lower section; 22. a second back plate; 23. a second chain cloth groove; 231. a second opening; 24. a second clamping block; 25. a second nip; 26. a second connecting portion; 27. a second connection pin; 28. a second clamping lug; 29. a clamping groove;

30. a double split tail zipper; 31 (31') a chain belt; 311. a first chain cloth; 311', a second chain cloth; 312 (312') a sprocket belt; 313 (313'), a sliding space; 32. sprocket teeth;

40. a zipper head is arranged; 40', lower slider; 41', guide slots; 43 (43'), guide plate.

Detailed Description

The technical solutions of the embodiments of the present utility model will be explained and illustrated below with reference to the drawings of the embodiments of the present utility model, but the following embodiments are only preferred embodiments of the present utility model, and not all embodiments. Based on the examples in the implementation manner, other examples obtained by a person skilled in the art without making creative efforts fall within the protection scope of the present utility model.

Embodiment one:

a bottom stop for a double-ended zipper, as shown in figures 1-7, comprising: the upper slider 40 and the lower slider 40' of the double-split slide fastener 30 are slid to the lower stopper of the present utility model by the construction of the stopper unit 10 and the movable slider unit 20, and then the user inserts the movable slider unit 20 and the fastener cloth 311' thereof into the upper slider 40 and the lower slider 40' (as shown in fig. 3 and 4) to bring the stopper unit 10 and the movable slider unit 20 together, and pulls the upper slider 40 to bring the two fastener tapes 31 and 31' together (as shown in fig. 5 and 6), for coupling the two fastener tapes 31 and 31' to the lower stopper of the double-split slide fastener 30 (for example, the double-split anti-pinch slide fastener having two sliders or the double-split concealed slide fastener shown in fig. 17 and 18). Conversely, the movable pins 21 (as shown in fig. 3 and 4) of the movable pin unit 20 may be pulled out from the upper slider 40 and the lower slider 40 'to completely separate the two fastener tapes 31, 31' of the double-tailed zipper 30, so that the lower stopper of the present utility model can make the double-tailed zipper 30 particularly suitable for the fly of an outer garment. When the fastener tapes 31 and 31 'are joined, the lower slider 40' may be pulled to separate the stopper pin unit 10 and the movable pin unit 20 to form a split end state (as shown in fig. 7).

As shown in fig. 6 and 7, the stopper pin unit 10 of the present utility model is used for injection molding at a lower end of a first link cloth 311 of one of the two links 31, 31'. Referring to fig. 8 to 16, the preferred embodiment includes an integrally formed stop pin 11, a first back plate 12, a first link slot 13, a stop block 14 and a first clamping block 15, wherein:

the retaining pin 11 is a first strip formed on the inner side of the front surface of the first back plate 12 and having a square cross section, and the first strip of the retaining pin 11 extends from the top edge of the first back plate 12 to the bottom edge of the first back plate 12 along the inner side of the first back plate 12. The upper end of the stop pin 11 is used to align with the lower end of the teeth 32 on the inner side of the first slider 311 (as shown in fig. 6 and 7), and the stop pin 11 is inserted into the guide groove 41' on the first side of the lower slider 40' when the lower slider 40' slides toward the stop pin unit 10 (as shown in fig. 6) (as shown in fig. 13). In particular, the first strip of the stop pin 11 has a first upper section 111 and a first lower section 112, the first upper section 111 is parallel to the inner side of the first chain cloth 311, and the first lower section 112 extends obliquely downward toward the outer side of the first upper section 111 until being connected to the inner end of the stop block 14.

The first back plate 12 of the stop pin unit 10 is connected to the rear of the stop pin 11 and extends to the outer side of the stop pin 11 to form a plate body, and the first back plate 12 is used for being formed on the back surface of the first chain cloth 311 to stabilize the structure of the near lower end of the first chain cloth 311. The first cloth slot 13 is formed between the stop pin 11 and the first back plate 12, and has a first opening 131 facing the upper end of the stop pin 11 and the outer side of the stop pin 11, so that the first cloth slot 13 can be used to receive and fix the reverse-folded sprocket band 312 (as shown in fig. 15) of the first cloth 311. The stopper 14 is formed in front of the bottom edge of the first back plate 12 and protrudes forward from the front of the first back plate 12, so that the stopper 14 serves to block the lower slider 40' (as shown in fig. 13). The first clamping block 15 is formed on the outer side of the front surface of the first back plate 12, and extends from the top edge of the first back plate 12 to the bottom edge of the first back plate 12 along the outer side of the first back plate 12, and a first clamping gap 16 is formed between the first clamping block 15 and the first back plate 12, and the first clamping gap 16 is used for accommodating the first chain cloth 311 (as shown in fig. 15). The first lower section 112 of the stop pin 11 is connected to the inner end of the stop block 14 to form an L-shape, so that the stop pin 11 has better structural strength and prevents the stop pin 11 from turning forward.

Referring to fig. 10 and 11, the front surface of the inner side of the first back plate 12 has a first connecting portion 17 integrally connected to the rear surface of the stop pin 11, and the first connecting portion 17 is adjacent to the first chain cloth groove 13. Referring to fig. 6 and 15, the first back plate 12 and the first clamping block 15 are connected together by two first connecting pins 18, and the connecting pins 18 are used to penetrate through the first chain cloth 311, so that the whole stop pin unit 10 is injection molded and fixed at the lower end of the first chain cloth 311.

Referring to fig. 6 and 7 again, the movable pin unit 20 of the lower stop device of the present utility model is used for injection molding at the lower end of a second link fabric 311' of the other link belt 31' of the two link belts 31, 31 '. Referring to fig. 8 to 16, the movable pin unit 20 of the preferred embodiment includes an integrally formed movable pin 21, a second back plate 22, a second chain slot 23 and a second clamping block 24, wherein:

the movable pin 21 is a second bar formed on the inner side of the front of the second back plate 22 and having a square cross section, and the second bar of the movable pin 21 extends from the top edge of the second back plate 22 to the bottom edge of the second back plate 22 along the inner side of the second back plate 22 or protrudes from the bottom edge of the second back plate 22. The upper end of the movable pin 21 is aligned with the lower end of the teeth 32 on the inner side of the second slider 311 '(as shown in fig. 5), and can be used to insert the movable pin 21 into the upper slider 40 and the lower slider 40' to be gathered with the stopper pin 11 or to draw the upper slider 40 and the lower slider 40 'away from each other when the upper slider 40 and the lower slider 40' slide toward the stopper pin unit 10 (as shown in fig. 3 and 4). The second bar-shaped body of the movable pin 21 preferably has a second upper section 211 and a second lower section 212, wherein the second upper section 211 is parallel to the inner side of the second chain cloth 311', and the second lower section 212 extends obliquely downward toward the outer side of the second upper section 211 until reaching the bottom edge of the second back plate 22 or protruding the bottom edge of the second back plate 22.

The second back plate 22 is connected to the rear of the movable pin 21, and extends to the outer side of the movable pin 21 to form a plate body, so that the second back plate 22 is used for forming on the back surface of the second chain cloth 311', and the structure of the second chain cloth 311' near the lower end is stabilized. The second cloth slot 23 is formed between the movable pin 21 and the second back plate 22, and has a second opening 231 facing the upper end of the movable pin 21 and the outer side of the movable pin 21, so that the second cloth slot 23 is used to accommodate the inverted folded sprocket band 312 '(as shown in fig. 10 and 16) of the second cloth 311'. The second clamping block 24 is formed on the outer side of the front surface of the second back plate 22, and extends from the top edge of the second back plate 22 to the bottom edge of the second back plate 22 along the outer side of the second back plate 22, and a second clamping gap 25 is formed between the second clamping block 24 and the second back plate 22, and the second clamping gap 25 is used for accommodating the second chain cloth 311' (as shown in fig. 16).

Referring to fig. 10 and 11, the front of the inner side of the second back plate 22 has a second connecting portion 26 connected to the rear of the movable pin 21, and the second connecting portion 26 is adjacent to the second chain slot 23. The second back plate 22 and the second clamping block 24 are connected together by two second connecting pins 27 (as shown in fig. 7 and 16), and the connecting pins 27 are used to penetrate the second chain cloth 311 'to make the whole movable pin unit 20 injection-molded and fixed at the lower end of the second chain cloth 311'.

Referring to fig. 9 to 11, the inner side edge of the stop pin 11 of the stop pin unit 10 protrudes a first locking protrusion 19, and the first locking protrusion 19 is a triangular protrusion; the inner side of the movable pin 21 of the movable pin unit 20 protrudes a second locking protrusion 28, the second locking protrusion 28 has a locking groove 29 matching with the first locking protrusion 19, the locking groove 29 is a groove recessed from the front to the back of the movable pin 21, when the movable pin 21 of the movable pin unit 20 is inserted into the upper zipper 40 and the lower zipper 40', the first locking protrusion 19 is locked in the locking groove 29, and the movable pin unit 20 and the stop pin unit 10 are aligned together (as shown in fig. 8 and 13).

Referring to fig. 13 and 14, the present utility model is constructed such that the first lower portion 112 of the stopper pin 11 is extended obliquely downward toward the outer side of the first upper portion 111 until being connected to the inner side of the stopper 14, and the second lower portion 212 of the movable pin 21 is extended obliquely downward toward the outer side of the second upper portion 211 until the bottom edge of the second back plate 22 or protruding the bottom edge of the second back plate 22, so that the first lower portion 112 and the second lower portion 212 arranged in the inverted V shape as shown in the drawing can be caught by the lower slider 40 'when the lower slider 40' slides to the lower stopper of the present utility model. And the stopper 14 of the stopper pin unit 10 can block the first side of the lower slider 40 'so that the lower slider 40' can be prevented from coming out of the lower stopper of the present utility model. Furthermore, the stopper 14 is provided with a through hole 141, and the through hole 141 is connected between the top surface and the bottom surface of the stopper 14, so as to allow the component on the first side of the lower slider 40' to penetrate into the through hole 141.

Referring to fig. 8, the stopper 14 of the stopper pin unit 10 of the present utility model protrudes forward of the bottom edge of the first back plate 12, and can stop the lower slider 40' as a stop point for sliding. Meanwhile, the inner end of the stop block 14 is connected to the stop pin 11, and the outer end of the stop block 14 is connected to the lower end of the first clamping block 15, so that a stable structure is formed, and the stop pin 11 can be prevented from turning forward and deforming. Furthermore, a concave arc surface 142 is provided between the first clamping block 15 and the stop block 14, and when the user holds the movable pin 21 of the movable pin unit 20 to insert the upper slider 40 and the lower slider 40' or pull out in the opposite direction, the stop block 14 can also be used as a force application point for holding the stop pin unit 10 in the other hand.

Embodiment two:

referring to fig. 1 to 7 and 14, the present embodiment further provides an assembly structure of a bottom stop device of a double-open-ended zipper based on the structure technology of the bottom stop device in the first embodiment, which can be applied as a double-open-ended anti-pinch zipper (the double-open-ended anti-pinch zipper with two zipper heads as shown in the drawings), comprising:

a double-split slide fastener 30, as shown in the patent number M624460 of the prior art, which has two fastener tapes 31, 31' for coupling or uncoupling, and an upper slider 40 and a lower slider 40' for coupling or uncoupling the two fastener tapes 31, 31' with each other. The two chain belts 31, 31' respectively have a first chain cloth 311 and a second chain cloth 311', and two teeth 32 coupled to the first chain cloth 311 and the second chain cloth 311'. The inner sides of the first and second chain cloths 311, 311 'are respectively folded toward the front side and the outer side to form a folded sprocket belt 312, 312', and a sliding space 313, 313 'is formed between the first and second chain cloths 311, 311' and the sprocket belts 312, 312', and the opening sides of the sliding spaces 313, 313' are toward the outer sides of the chain cloths. The two sprockets 32 are respectively combined on the sprocket belts 312 and 312', so that the sprockets 32 are respectively located on the front sides (front sides, as shown in fig. 1) of the first sprocket 311 and the second sprocket 311', and the back sides of the first sprocket 311 and the second sprocket 311' are respectively covered by the sprockets 32 (as shown in fig. 2). When the sliders 40 slide, the guide plates 43, 43 'on both sides of each slider 40, 40' are moved in the sliding spaces 313, 313', so that the guide plates 43, 43' do not appear on the back surface of the double-ended zipper 30 (as shown in FIG. 2), and the double-ended zipper 30 can achieve the function of preventing the clamping to the lining of the laundry.

The stopper pin unit 10 is integrally injection-molded at the lower end of the first link cloth 311, such that the proximal lower end of the first link cloth 311 and the folded inner side are extended and fixed in the first link cloth groove 13 (as shown in fig. 15), and the lower end of the sliding space 313 of the first link cloth 311 is engaged with the upper end of the first link cloth groove 13, such that the stopper pin 11 is engaged with the front of the sprocket band 312 of the first link cloth 311. Referring to fig. 15, the back surface of the near lower end of the first linking cloth 311 is attached to the front surface of the first back plate 12 and extends transversely through the first slit 16, so that the first linking cloth 311 extends to protrude out of the outer side of the first back plate 12, and therefore the front surface of the first back plate 12 is closely attached to the back surface of the first linking cloth 311, so as to maintain the configuration of the first linking cloth 311. The stopper 14 protrudes forward from the front surface of the first back plate 12 to the lower end of the front surface of the first slider 311, and can be used to block the two sliders 40. The first clamping block 15 is injection molded in front of the first chain cloth 311 (as shown in fig. 1 and 6), so as to clamp the first chain cloth 311 with the first back plate 12, thereby generating a better clamping and fixing structure resisting the transverse pulling force.

The movable pin unit 20 is integrally injection-molded at the lower end of the second link cloth 311', such that the second link cloth 311' is extended near the lower end and the inner side edge of the reverse fold and is fixed in the second link cloth groove 23 (as shown in fig. 16), so that the lower end of the sliding space 313 'of the second link cloth 311' can be engaged with the upper end of the second link cloth groove 23, and thereby the movable pin 21 is injection-molded and coupled in front of the sprocket belt 312 'of the second link cloth 311'. Referring to fig. 16 again, the back surface of the proximal lower end of the second chain cloth 311 'is attached to the front surface of the second back plate 22 and extends transversely through the second slit 25, so that the second chain cloth 311' extends to protrude out of the outer side of the second back plate 22, and thus the front surface of the second back plate 22 is closely attached to the back surface of the second chain cloth 311 'to maintain the configuration of the second chain cloth 311'. The second clamping block 24 is injection molded and attached to the front of the second chain cloth 311 'to clamp the second chain cloth 311' with the second back plate 22, so as to generate a better clamping and fixing structure resisting the transverse tension.

Referring to fig. 6, 15 and 16, when the stop pin unit 10 and the movable pin unit 20 are respectively injection-molded on a first link fabric 311 and a second link fabric 311', the first connecting pin 18 between the first back plate 12 and the first clamping block 15 passes through the first link fabric 311, and the second connecting pin 27 between the second back plate 22 and the second clamping block 24 passes through the second link fabric 311'. Therefore, the stop pin unit 10 and the movable pin unit 20 are more firmly combined with the first chain cloth 311 and the second chain cloth 311', and have better function of resisting transverse pulling force. In addition, the stop pin unit 10 and the movable pin unit 20 are formed on the first chain cloth 311 and the second chain cloth 311', and the first backboard 12 and the second backboard 22 can be used as the grasping parts for a user to conveniently penetrate the movable pin unit 20 into the upper zipper head 40 and the lower zipper head 40', so that the movable pin unit 20 and the stop pin unit 10 are combined together, and conversely, the movable pin unit 20 can be conveniently pulled out.

While the embodiment of the bottom stop device of the present utility model applied to the double-split anti-pinch slide fastener is shown in fig. 1 to 16, the bottom stop device of the present utility model may be mounted on the double-split invisible slide fastener having the inverted zipper teeth on the inner side of the zipper cloth, and as shown in fig. 17 and 18, the upper zipper slider 40 and the lower zipper slider 40' of the double-split slide fastener 30 are assembled on the back surface between the first zipper cloth 311 and the second zipper cloth 311' such that the upper zipper slider 40 and the lower zipper slider 40' are on the same surface as the zipper teeth 32 on the back surface, and the front zipper tabs of the upper zipper slider 40 and the lower zipper slider 40' pass through the front surface of the double-split invisible slide fastener between the first zipper cloth 311 and the second zipper cloth 311'. The front side of the dual split end anti-pinch zipper shown in fig. 1 has the upper and lower sliders 40, 40 'and the zipper and teeth 32 on the front sides of the two stringers 31, 31', so that the sliders are not visible on the back side shown in fig. 2, thus having an anti-pinch function. While fig. 17 shows the back surface of the double-split concealed slide fastener, in which the upper slider 40, the lower slider 40' and the teeth 32 are hidden at the back surfaces of the two fastener tapes 31 and 31', only the pull tab is at the front surfaces of the two fastener tapes 31 and 31' (as shown in fig. 18), and other structures are the same as those of the double-split concealed slide fastener described above, so that the description thereof will not be repeated.

The above description is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.

Claims (10)

1. The utility model provides a lower end stop device of two split-end zippers, its two chain belt lower extreme that is used for combining respectively at a two split-end zippers, as the terminal part that the zip fastener head of this two split-end zippers slided, characterized in that includes a stop tip unit and a movable tip unit, this stop tip unit and the inboard limit of this movable tip unit can draw together each other and lock together, wherein:

the stop pin unit is used for injection molding at the lower end of a first chain cloth of one of the two chain belts and comprises a stop pin, a first back plate, a first chain cloth groove, a stop block and a first clamping block which are integrally molded; the retaining pin is a first strip-shaped body formed on the inner side edge of the front surface of the first backboard, the retaining pin extends from the top edge of the first backboard to the bottom edge of the first backboard along the inner side edge of the first backboard, and the upper end of the retaining pin is used for being aligned with the lower end of the sprocket of the inner side edge of the first chain cloth; the first backboard is connected to the rear of the stop pin and extends to the outer side edge of the stop pin to form a board body; the first chain cloth groove is formed between the stop pin and the first backboard and is provided with a first opening facing the upper end of the stop pin and the outer side edge of the stop pin; the stop block is formed in front of the bottom edge of the first backboard and protrudes forwards from the front surface of the first backboard, and the lower end of the stop pin is connected with the inner side end of the stop block; the first clamping block is formed on the outer side edge of the front face of the first backboard, and a first clamping gap is formed between the first clamping block and the first backboard;

the movable pin unit is used for injection molding at the lower end of a second chain cloth of the other chain belt of the two chain belts and comprises a movable pin, a second backboard, a second chain cloth groove and a second clamping block which are integrally molded; the movable pin is a second strip-shaped body formed on the inner side edge of the front surface of the second backboard, the movable pin extends from the top edge of the second backboard to the bottom edge of the second backboard along the inner side edge of the second backboard or protrudes out of the bottom edge of the second backboard, and the upper end of the movable pin is used for being aligned with the lower end of the sprocket of the inner side edge of the second chain cloth; the second backboard is connected to the rear of the movable pin and extends to the outer side of the movable pin to form a board body; the second chain cloth groove is formed between the movable pin and the second backboard and is provided with a second opening facing the upper end of the movable pin and the outer side edge of the movable pin; the second clamping block is formed on the outer side edge of the front face of the second backboard, and a second clamping gap is formed between the second clamping block and the second backboard.

2. The bottom stop assembly for a double-ended zipper of claim 1, wherein: the first strip-shaped body of the stop pin is provided with a first upper section part and a first lower section part, the first upper section part is parallel to the inner side edge of the first chain cloth, and the first lower section part extends downwards obliquely towards the outer side edge of the first upper section part until being connected with the inner side end of the stop block; the second strip-shaped body of the movable pin is provided with a second upper section part and a second lower section part, the second upper section part is parallel to the inner side edge of the second chain cloth, and the second lower section part extends obliquely downwards towards the outer side edge of the second upper section part until reaching the bottom edge of the second backboard.

3. A bottom stop for a double-ended zipper as defined in claim 1 or 2, wherein: the stopper is provided with a through hole which is communicated between the top surface and the bottom surface of the stopper and is used for allowing the component of the zipper head to penetrate into the through hole.

4. A bottom stop for a double-ended zipper as defined in claim 1 or 2, wherein: the lower end of the first clamping block is connected to the outer side end of the stop block, and a concave cambered surface is arranged between the first clamping block and the stop block.

5. A bottom stop for a double-ended zipper as defined in claim 1 or 2, wherein: the front of the inner side edge of the first backboard is provided with a first connecting part connected to the rear of the stop pin, and the first connecting part is adjacent to the first chain cloth groove; the front of the inner side of the second backboard is provided with a second connecting part connected with the rear of the movable pin, and the second connecting part is adjacent to the second chain cloth groove.

6. A bottom stop for a double-ended zipper as defined in claim 1 or 2, wherein: the first backboard is connected with the first clamping block through a first connecting pin; the second backboard and the second clamping block are connected together through a second connecting pin.

7. A bottom stop for a double-ended zipper as defined in claim 1 or 2, wherein: the inner side of the stop pin protrudes a first clamping convex block, the inner side of the movable pin protrudes a second clamping convex block, and the second clamping convex block is provided with a clamping groove; and when the movable pin unit and the stop pin unit are combined, the first clamping convex block is embedded into the clamping groove.

8. An assembly structure of a bottom stop device of a double-open-ended slide fastener as claimed in any one of claims 1 to 7, comprising: a double split-end zipper having two stringers and two sliders driving the two stringers to be coupled to or decoupled from each other; the two chain belts are provided with a first chain cloth, a second chain cloth and two chain teeth respectively combined with the first chain cloth and the second chain cloth; the inner side edges of the first chain cloth and the second chain cloth are respectively reversely folded towards the front side and the outer side edge of the second chain cloth to respectively form reversely folded sprocket belts, a sliding space is formed between the first chain cloth and the second chain cloth and the sprocket belts respectively, and the opening side of the sliding space is towards the outer side edge of the chain cloth; the two chain teeth are combined on the chain tooth belt, so that the chain teeth are respectively positioned on the front surfaces of the first chain cloth and the second chain cloth, and the back surfaces of the first chain cloth and the second chain cloth respectively shield the chain teeth;

the stop pin unit is integrally injection-molded at the lower end of the first chain cloth, the near lower end of the first chain cloth and the reverse folded inner side edge of the first chain cloth extend into and are fixed in the first chain cloth groove, the lower end of the sliding space of the first chain cloth is aligned with the upper end of the first chain cloth groove, and the upper end of the stop pin is jointed at the end part of the toothed belt of the first chain cloth; the back of the near lower end of the first chain cloth is attached to the front of the first backboard and transversely extends through the first crack, so that the first chain cloth extends to protrude out of the outer side edge of the first backboard, and the front of the first backboard is closely attached to the back of the first chain cloth; the stop block protrudes forwards from the front surface of the first backboard to the lower end of the front surface of the first zipper cloth and is used for blocking the zipper head when the zipper head slides downwards; the first clamping block is attached to the front face of the first chain cloth and clamps the first chain cloth together with the first backboard positioned on the back face of the first chain cloth; a kind of electronic device with high-pressure air-conditioning system

The movable pin unit is integrally injection-molded at the lower end of the second chain cloth, the near lower end of the second chain cloth and the reverse folded inner side edge thereof extend into and are fixed in the second chain cloth groove, the lower end of the sliding space of the second chain cloth is aligned with the upper end of the second chain cloth groove, and the upper end of the movable pin is jointed at the end part of the sprocket belt of the second chain cloth; the back of the near lower end of the second chain cloth is attached to the front of the second backboard and transversely extends through the second crack, so that the second chain cloth extends to protrude out of the outer side edge of the second backboard, and the front of the second backboard is closely attached to the back of the second chain cloth; the second clamping block is attached to the front face of the second chain cloth and clamps the second chain cloth together with the second backboard located on the back face of the second chain cloth.

9. The assembly structure of a bottom stop device of a double-open-ended zipper according to claim 8, wherein:

the first backboard and the first clamping block are connected together through a first connecting pin, and the first connecting pin penetrates through the first chain cloth.

10. The assembly structure of a bottom stop device of a double-open-ended zipper according to claim 8, wherein:

the second backboard and the second clamping block are connected together through a second connecting pin, and the second connecting pin penetrates through the second chain cloth.