Double-lock-pin positioning puller

Abstract

The utility model belongs to the field of zipper pullers, and relates to a double-locking-needle positioning puller which comprises a puller base, a zipper belt groove is formed in the puller base, two locking needle grooves are formed in the upper end of the puller base, the upper ends of the locking needle grooves are open, the lower ends of the locking needle grooves are communicated with the zipper belt groove, and a pulling piece is rotationally arranged at the upper end of the puller base. Two lock pins are formed at the lower end of the pull piece, the two lock pins extend into the zipper belt groove from the two lock pin grooves respectively, when the pull piece is close to the puller base, the two lock pins on the pull piece extend into the zipper belt groove and are clamped in zipper tooth seams of the sub-chains on the two sides respectively, so that the puller cannot slide up and down on the zipper, through the design of the double lock pins, locking force is firmer, and the zipper is more attractive. The zipper is firmer and more stable and can be suitable for a zipper with a left plug pin or a right plug pin; the device has the advantages of being simple in structure, stable and firm in locking and not prone to shaking.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of zipper puller, and relates to a double lock needle positioning puller. BACKGROUND

[0002] In order to prevent the puller from sliding downward, especially the coat in winter, the conventional puller is provided with a lock hook and other safety structures. The safety structure can prevent the puller from sliding downward by itself. For example, the utility model 201721123875.6 discloses an automatic puller, which comprises a plastic single head 10, a pull rod 20, a copper lock hook 30, a steel spring piece 40 and a plastic cap 50. When the pull rod 20 is pulled upward, the copper lock hook 30 is away from the chain teeth, the safety is released, and the puller can be freely pulled. When the pull rod 20 is returned to the original position, the steel spring piece 40 can quickly return to the straight position and press the copper lock hook 30 to lock the chain teeth.

[0003] For another example, the utility model 202010731350.0 discloses a puller with a lock, which comprises a base (1), a cap (2), an elastic component, a code hook (4) and a pull piece (5) sleeved on the cap (2). The cap (2) is provided with a movable part (21), a locking part (23) and a passing part (22). The pull piece (5) is separated from the code hook (4) at the locking part (23), and the code hook (4) is locked under the action of the elastic component. The pull piece (5) is provided with a passing part (51) for passing through the passing part (22) so that it is moved from the movable part (21) to the locking part (23) or from the locking part (23) to the movable part (21). When the puller needs to be locked, the passing part of the pull piece is moved to the locking part through the passing part. When the pull piece is in the locking part, it is separated from the code hook. Even if the pull piece shakes in the locking part, it will not contact the code hook. At this time, the code hook is in the lower position under the action of the elastic component, and the locking is realized. When the puller needs to work normally, the pull piece is moved so that the pull piece is moved from the locking part to the movable part through the passing part. During the movement, the passing part of the pull piece needs to pass through the passing part so that the pull piece can move smoothly. When the pull piece moves to the movable part, the pull piece is pulled upward to overcome the force of the elastic component to lift the code hook so that the code hook is in the upper position. At this time, the puller can be pulled to open and close the zipper, and the puller can work normally.

[0004] The above two pullers can realize the safety function, but the structure is complex and the manufacturing cost is high. SUMMARY

[0005] The utility model provides a double lock needle positioning puller according to the above problem, and the device has the advantages of simple structure, stable and firm locking and not easy to shake.

[0006] The utility model discloses a lock needle positioning puller is provided with two lock needles, and the two lock needles are arranged on the puller base.

[0007] A double lock needle positioning puller, comprising a puller base, a chain groove is formed in the puller base, two lock needle grooves are formed at the upper end of the puller base, the upper end of the lock needle groove is open, the lower end of the lock needle groove is communicated with the chain groove, a pull tab is rotatably arranged at the upper end of the puller base, two lock needles are formed at the lower end of the pull tab, and the two lock needles respectively extend into the chain groove from the two lock needle grooves.

[0008] The two adjacent chain teeth on the single chain are arranged at intervals, and a chain tooth gap is arranged between the two chain teeth. After the two chains are combined, the chain teeth on the two chains will be engaged with each other. Through the above arrangement, when the pull tab is close to the puller base, the two lock needles on the pull tab extend into the chain groove and are respectively clamped in the chain tooth gaps of the two side chains, so that the puller cannot slide up and down on the zipper. Through the design of the double lock needles, the locking force is more solid, more stable, and can be applied to the left or right lock of the zipper at the same time.

[0009] The utility model further sets up that: two lock needles are arranged in front of and behind the position.

[0010] After the two chains are combined, the chain teeth on the two chains will be engaged with each other. The chain teeth on the two chains are staggered in front of and behind, so that the two lock needles are arranged in front of and behind the position, which can better adapt to the position of the chain tooth gap and make the two lock needles clamp into the chain tooth gaps of the two chains at the same time.

[0011] The utility model further sets up that: the two lock needle grooves are also arranged in front of and behind the position.

[0012] Through the above arrangement, the lock needle groove and the lock needle are correspondingly arranged, which plays an auxiliary positioning role.

[0013] The utility model further sets up that: the upper end of the puller base is formed with a pull tab groove, and the pull tab is rotatably arranged in the pull tab groove.

[0014] Through the arrangement of the pull tab groove, the pull tab can be limited, the amplitude of left and right shaking of the pull tab is reduced, and the pull tab can only be opened up and down.

[0015] The utility model further sets up that: the upper end of the puller base is formed with a pull tab groove, and the pull tab is rotatably arranged in the pull tab groove.

[0016] Through the above arrangement, the pull tab can be rotatably arranged in the pull tab groove, and the hinge seat and the pull tab groove are integrated, so that the structure is more simple.

[0017] The utility model further sets up that: the two sides of the pull tab are also formed with a plurality of damping protrusions.

[0018] Through the setting of the damping protrusion, the pull tab can be more stably clamped in the pull tab slot and is not easy to fluctuate up and down with human activities, so that the pull tab cannot easily leave the pull tab slot and the lock needle on the pull tab cannot easily leave the chain tooth gap without external force. Only when the pull tab is pulled up by a person, the lock needle can leave the chain tooth gap, so that the puller can be freely pulled.

[0019] The utility model further sets up: the both sides hinged seat is formed with the positioning concave point, positioning concave point is matched with damping protrusion.

[0020] Through the design of the positioning concave point, the pull tab can be more stably clamped in the pull tab slot.

[0021] The utility model further sets up: the chain belt slot is equipped with the chain column, the lower end surface middle part of puller base is formed with the reinforcing rib, the reinforcing rib sets up in the lower end of chain column.

[0022] Through the targeted reinforcing rib on one side of the chain column, the strength of one side of the chain column is stronger, and the reinforcing rib does not need to be set in other places to waste materials, and the beauty of the puller can be increased.

[0023] The utility model discloses the beneficial technical effects that are prominent and advantageous compared with prior art are: when the pull tab is close to the puller base, two lock needles on the pull tab extend into the chain belt slot and are clamped in the chain tooth gap of the two sides chain respectively, so that the puller does not slide up and down on the zipper, and through the design of the double lock needle, the locking force is more solid, more firm and stable. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0025] Figure 1 It is a structure diagram of the puller.

[0026] Figure 2 It is a structure diagram of the puller base.

[0027] Figure 3 It is a bottom structure diagram of the puller base.

[0028] Figure 4 It is a structure diagram of the pull tab.

[0029] Figure 5 It is a structure diagram of the zipper.

[0030] 1 - slider base; 2 - chain groove; 3 - chain separation post; 4 - lock pin groove; 5 - pull tab; 6 - lock pin; 7 - pull tab groove; 8 - hinge seat; 9 - hinge hole; 10 - hinge post; 11 - damping protrusion; 12 - positioning concave point; 13 - reinforcing rib; 14 - chain separation; 15 - chain tooth; 16 - chain tooth gap. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the utility model more clear, the technical scheme of the application will be described in detail below. Obviously, the described embodiments are only some of the embodiments of the application, not all. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the application.

[0032] A double lock pin positioning slider comprises a slider base 1, a chain groove 2 is formed in the slider base 1, a chain separation post 3 is arranged in the chain groove 2, two lock pin grooves 4 are formed in the upper end of the slider base 1, the upper end of the lock pin groove 4 is open, the lower end of the lock pin groove 4 is communicated with the chain groove 2, a pull tab 5 is rotatably arranged at the upper end of the slider base 1, two lock pins 6 are formed in the lower end of the pull tab 5, and the two lock pins 6 respectively extend into the chain groove 2 from the two lock pin grooves 4.

[0033] The two chain teeth 15 on a single chain separation 14 are arranged at intervals, and a chain tooth gap 16 is arranged between the two chain teeth 15. After the two chain separations 14 are combined, the chain teeth 15 on the two chain separations 14 will be engaged with each other. Through the above arrangement, when the pull tab 5 is close to the slider base 1, the two lock pins 6 on the pull tab 5 extend into the chain groove 2 and are respectively clamped in the chain tooth gaps 16 of the two chain separations 14, so that the slider cannot slide up and down on the zipper. Through the design of the double lock pins, the locking force is more solid, more stable and firm, and the zipper with a left or right latch can be simultaneously used.

[0034] The two lock pins 6 are arranged in front of and behind each other. After the two chain separations 14 are combined, the chain teeth 15 on the two chain separations will be engaged with each other, and then the chain teeth 15 on the two chain separations are staggered in front of and behind each other. Therefore, the lock pins 6 are arranged in front of and behind each other, which can better adapt to the positions of the chain tooth gaps 16, so that the two lock pins 6 can be simultaneously clamped into the chain tooth gaps of the two chain separations.

[0035] The two lock pin grooves 4 are also arranged in front of and behind each other. Through the above arrangement, the lock pin grooves 4 and the lock pins 6 are correspondingly arranged, which plays an auxiliary positioning role.

[0036] The upper end of the slider base 1 is formed with a pull tab groove 7, and the pull tab is rotatably arranged in the pull tab groove 7. Through the arrangement of the pull tab groove 7, the pull tab 5 can be limited, the amplitude of left and right shaking of the pull tab 5 is reduced, and the pull tab can only be opened up and down.

[0037] The upper end of the puller base 1 is formed with a hinge seat 8 on both sides, the puller tab slot 7 is formed between the two hinge seats 8, the hinge hole 9 is formed on the two hinge seats 8, the puller tab 5 is formed with a hinge column 10 on both sides, and the two hinge columns 10 are respectively arranged in the corresponding hinge hole 9. Through the above arrangement, the puller tab 5 can be arranged in the puller tab slot 7, and the hinge seat 8 and the puller tab slot 7 are integrated, so that the structure is more simple.

[0038] The puller tab 5 is also formed with a plurality of damping protrusions 11 on both sides, preferably, two damping protrusions 11 are arranged on the left and right sides of the puller tab. Through the arrangement of the damping protrusions 11, the puller tab can be more stably clamped in the puller tab slot 7, and is not easy to fluctuate up and down with the movement of the person, so that the puller tab 5 will not easily leave the puller tab slot 7 without external force, and the locking needle 6 on the puller tab will not easily leave the sprocket slot 16. Only when the puller tab is pulled up by the person, the locking needle 6 can leave the sprocket slot 16, so that the puller tab can be freely pulled.

[0039] The hinge seat 8 on both sides is formed with a positioning concave point 12, and the positioning concave point 12 is matched with the damping protrusion 11. Through the design of the positioning concave point 12, the puller tab can be more stably clamped in the puller tab slot.

[0040] The lower end surface of the puller base 1 is formed with a reinforcing rib 13 in the middle, and the reinforcing rib 13 is arranged at the lower end of the chain dividing column 3. Through the targeted arrangement of the reinforcing rib 13 on one side of the chain dividing column 3, the strength of one side of the chain dividing column 3 is stronger, and the reinforcing rib does not need to be arranged elsewhere to waste materials, and the beauty of the puller can be increased.

[0041] The utility model has the characteristics of simple structure, locking stable and solid, and not easy to shake.

[0042] The above embodiments are only the preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: any equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. A double-pin positioning zipper pull, comprising a zipper pull base, wherein a chain groove is formed within the zipper pull base, characterized in that, The upper end of the zipper base has two locking pin grooves, the upper end of which is open and the lower end of which is connected to the chain groove. The upper end of the zipper base is rotatably provided with a pull tab, the lower end of which has two locking pins, which extend from the two locking pin grooves into the chain groove.

2. The double-locking pin positioning puller according to claim 1, characterized in that: The two locking pins are set to be staggered front and back.

3. A double-locking pin positioning puller according to claim 2, characterized in that: The two locking pin slots are also staggered.

4. A double-locking pin positioning puller according to claim 1, characterized in that: The upper end of the pull head base is formed with a pull tab groove, and the pull tab is rotatably disposed in the pull tab groove.

5. A double-locking pin positioning puller according to claim 4, characterized in that: The upper end of the pull head base is formed with hinge seats on both sides, and the pull tab groove is formed between the two hinge seats. Both hinge seats are formed with hinge holes. The two sides of the pull tab are formed with hinge posts, and the two hinge posts are rotatably set in the corresponding hinge holes.

6. A double-locking pin positioning puller according to claim 5, characterized in that: Several damping protrusions are also formed on both sides of the pull tab.

7. A double-locking pin positioning puller according to claim 6, characterized in that: Positioning recesses are formed on both sides of the hinge seat, and the positioning recesses match the damping protrusions.

8. A double-locking pin positioning puller according to claim 1, characterized in that: The chain groove is provided with a chain-splitting post, and a reinforcing rib is formed in the middle of the lower end face of the pull head base. The reinforcing rib is located at the lower end of the chain-splitting post.

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