Anti-theft zipper puller

Abstract

The utility model discloses an anti-theft zipper puller which comprises a pulling piece and a puller body, the puller body and the pulling piece are detachably connected through a cap, the top face of the puller penetrates through and is connected with an inserting piece in a sliding mode, the pulling piece comprises a piece body and a pull rope, one end of the pull rope is fixedly connected with a partition piece, and the partition piece is fixedly installed in the piece body. The other end of the pull rope penetrates through the spacer and is in sliding contact with the spacer, a roller is wound around the other end of the pull rope and is rotationally connected with the spacer, one end, away from the spacer, of the roller extends out of the sheet body, a mounting hole is formed in the center of the roller, a pawl is rotationally connected to the inner wall of the mounting hole, and one end of the pawl is detachably connected with a switch assembly; a first spring is fixedly connected between one side face of the pawl and the inner wall of the mounting hole, and the switch assembly is rotationally connected with the sheet body. By means of self-locking of the zipper puller, the zipper puller cannot be opened illegally in the moving process, the opening difficulty in the moving process is increased, and the anti-theft function is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of zippers, in particular to an anti-theft zipper pull head. Background Art

[0002] A zipper pull head refers to an opening and closing member installed at the top end of a zipper, usually composed of a tooth plate, a slider and a locking member. According to different shapes and functions, pull heads can be divided into open pull heads, closed pull heads, self-locking pull heads, etc. The pull head is the control center of the zipper. By pulling the pull rope, the clamps on the pull head are engaged with each other, so as to open or close the zipper. In addition, the pull head also plays a role in beauty and decoration, and pull heads of different shapes and materials can be selected according to the use occasion. Existing luggage mostly uses zipper pull heads for opening and closing, but their convenient usability also makes them easy to be opened by outsiders.

[0003] The prior art (Chinese Patent No.: CN105286219A) discloses an anti-theft pull head, which controls the movement of the horse hook by setting a key, and then realizes the locking and unlocking of the position of the pull head. Compared with the traditional technical solution, there is no need to purchase a password lock additionally, it is convenient to use and does not affect the appearance beauty, and the user experience is relatively good. However, it needs to be opened by using a key, and there is an inconvenient situation for the user to open it in daily applications. Summary of the Utility Model

[0004] To solve the above technical problems, the utility model provides an anti-theft zipper pull head, which realizes that the pull head cannot be illegally opened during the movement by using the self-locking of the zipper pull head, increases the opening difficulty during the movement, and realizes the anti-theft function.

[0005] To achieve the above purpose, the utility model provides the following solutions:

[0006] An anti-theft zipper pull head, comprising a pull tab and a pull head, the pull head is detachably connected to the pull tab through a cap, a plug-in member penetrates through and is slidably connected to the top surface of the pull head, the pull tab includes a tab body and a pull rope, one end of the pull rope is fixedly connected with a spacer, the spacer is fixedly installed inside the tab body, the other end of the pull rope penetrates through the spacer and is in sliding contact with the spacer, a roller is wound around the other end of the pull rope, the roller is rotatably connected to the spacer, the end of the roller away from the spacer extends out of the tab body, an installation hole is opened at the center of the roller, a pawl is rotatably connected to the inner wall of the installation hole, one end of the pawl is detachably connected with a switch assembly, a first spring is fixedly connected between one side surface of the pawl and the inner wall of the installation hole, the top end and the bottom end of the switch assembly respectively penetrate through the top surface and the bottom surface of the tab body, and the switch assembly is rotatably connected to the tab body.

[0007] Preferably, the plug-in includes a hook, one end of which is an open hook structure, the bottom end of which passes through the top surface of the slider and is fixedly connected to a crossbeam, the hook is slidably connected to the top surface of the slider, both ends of the crossbeam are respectively fixedly connected to pins, the pins are detachably connected to the bottom surface of the inner cavity of the slider; the other end of the hook is detachably connected to the pull rope.

[0008] Preferably, a clearance groove is formed on the top surface of the cap, and the clearance groove extends to two opposite side surfaces of the cap; and the top surface of the hook is vertically aligned with the clearance groove.

[0009] Preferably, the top surface and the bottom surface of the roller are rotatably connected to connecting plates respectively, and one end of the connecting plate is fixedly connected to the spacer; the switch assembly passes through the connecting plate and is slidably connected to the connecting plate.

[0010] Preferably, the switch assembly includes a first slide post and a second slide post, a slide hole is provided on the bottom surface of the first slide post, a slide bar is adapted and slidably connected in the slide hole, a second spring is fixedly connected between one end of the slide bar and the top surface of the inner cavity of the slide hole, and the other end of the slide bar is fixedly connected to the second slide post, the first slide post respectively penetrates the connecting plate located above and the top surface of the sheet body, and the second slide post respectively penetrates the connecting plate located below and the bottom surface of the sheet body; ratchets are respectively penetrated and fixedly connected in the middle of the first slide post and the middle of the second slide post, and the ratchet is detachably connected to the pawl.

[0011] Preferably, a gap is provided between the top surface of the second sliding column and the bottom surface of the first sliding column.

[0012] Preferably, a rubber strip is provided directly below the insertion pin, the rubber strip is embedded in the bottom surface of the inner cavity of the slider, and the insertion pin and the rubber strip are detachably connected.

[0013] Preferably, the side surface of the ratchet wheel is divided into a guide sliding section and an engagement section, the engagement section of the ratchet wheel is detachably connected to the pawl, and the guide sliding section of the ratchet wheel is a conical structure for opening the pawl.

[0014] Compared with the prior art, the utility model has the following advantages and technical effects:

[0015] The utility model realizes the fixing of the position of the pull head by inserting the plug into the fabric at both ends of the zipper, and the plug is arranged in the cap, which can not only prevent the failure of locking caused by external hooking, but also prevent the loss of money in the bag caused by malicious opening by outsiders. The pull cord is tightened by the roller, which can prevent the pull tab from being pulled by people to unlock the plug. At the same time, the roller can release the retracted pull cord through the switch assembly, and it can be unlocked by simply pulling, so that the plug can be opened by the pull cord.

[0016] The utility model can greatly increase the time and difficulty for outsiders to open the luggage during the movement of the luggage using this slider, and further improve the safety of the luggage. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings forming a part of this application are used to provide a further understanding of this application. The schematic embodiments of this application and their descriptions are used to explain this application and do not constitute an improper limitation to this application. In the drawings:

[0018] Figure 1 is a schematic perspective side view structure diagram of the utility model;

[0019] Figure 2 is a schematic perspective side view structure diagram of the inside of the pull tab;

[0020] Figure 3 is a schematic perspective side view structure diagram of the plug-in;

[0021] Figure 4 is a schematic perspective side view structure diagram of the switch assembly;

[0022] Among them, 1. pull tab; 2. slider; 3. cap; 4. sheet body; 5. pull rope; 6. spacer; 7. roller; 8. mounting hole; 9. pawl; 10. first spring; 11. hook; 12. cross beam; 13. pin; 14. relief groove; 15. first sliding column; 16. second sliding column; 17. slide bar; 18. second spring; 19. ratchet; 20. rubber strip. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The following will refer to the drawings and combine with the embodiments to detail this application.

[0024] It should be noted that all components in the technical solution of this application require additional facilities for water supply, oil supply, power supply, and gas supply for driving or / and controlling. If not further elaborated, it is defaulted to be used and equipped according to the prior art without special explanation.

[0025] It should be noted that in order to make the above objects, features, and advantages of the utility model more obvious and understandable, the following will further detail the utility model in combination with the drawings and specific embodiments.

[0026] By Figure 1A theft-proof zipper puller as shown includes a pull tab 1 and a pull head 2. The pull head 2 is detachably connected to the pull tab 1 through a cap 3. A plug is penetrated and slidably connected to the top surface of the pull head 2. The pull tab 1 includes a tab body 4 and a pull rope 5. The pull rope 5 is a nylon rope or a composite rope woven by a metal wire and synthetic fiber, having flexibility and being convenient for tightening. The tab body 4 is a hollow rubber sleeve, or a silicone sleeve, or a nylon sleeve. One end of the pull rope 5 is fixedly connected with a spacer 6, and the spacer 6 is fixedly connected to the inner cavity side wall of the tab body 4. The other end of the pull rope 5 penetrates through the spacer 6 and is in sliding contact with the spacer 6. A roller 7 is wound around the other end of the pull rope 5. The roller 7 is rotatably connected to the spacer 6. One end of the roller 7 away from the spacer 6 extends out of the tab body 4. A groove is formed on the side surface of the roller 7 for accommodating the wound pull rope 5. An installation hole 8 is formed in the center of the roller 7. A pawl 9 is rotatably connected to the inner wall of the installation hole 8. One end of the pawl 9 is detachably connected with a switch assembly. A first spring 10 is fixedly connected between one side surface of the pawl 9 close to the side wall of the installation hole 8 and the inner wall of the installation hole 8. The first spring 10 can stably abut the pawl 9 against the switch assembly. The top end and the bottom end of the switch assembly respectively penetrate through the top surface and the bottom surface of the tab body 4, and the switch assembly is rotatably connected to the tab body 4.

[0027] In a further optimized solution, the plug includes a hook 11. One end of the hook 11 is an open hook structure for hooking the pull rope 5, which is convenient for the pull rope 5 to pull up the hook 11. The bottom end of the hook 11 penetrates through the top surface of the pull head 2 and is fixedly connected with a cross beam 12. The cross beam 12 is arranged in the inner cavity of the pull head 2. The hook 11 is slidably connected to the top surface of the pull head 2. The two ends of the cross beam 12 are respectively fixedly connected with a pin 13. The pin 13 is detachably connected to the bottom surface of the inner cavity of the pull head 2. When the pin 13 is pulled by the hook 11 to the top dead center, the tip of the pin 13 is higher than the side opening position of the pull head 2. The other end of the hook 11 is detachably connected with the pull rope 5.

[0028] In a further optimized solution, a relief groove 14 is formed on the top surface of the cap 3. The relief groove 14 extends to two opposite side surfaces of the cap 3. The top surface of the hook 11 is vertically aligned with the relief groove 14, which is convenient for using an external tool to perform the operation of pushing the hook 11 in.

[0029] Furthermore, the width of the relief groove 14 is 1 mm - 2 mm, which can conveniently use common items (such as keys, toothpicks, pen refills) to operate the hook 11, improving the operation convenience of the present utility model.

[0030] In a further optimized solution, connecting plates are respectively rotatably connected to the top surface and the bottom surface of the roller 7. One end of the connecting plate is fixedly connected with the spacer 6; the switch assembly penetrates through the connecting plate and is slidably connected to the connecting plate.

[0031] For a further optimized solution, the switch assembly includes a first sliding post 15 and a second sliding post 16. A sliding hole is formed in the bottom surface of the first sliding post 15. A sliding bar 17 is fitted and slidably connected in the sliding hole. A second spring 18 is fixedly connected between one end of the sliding bar 17 and the top surface of the inner cavity of the sliding hole. The first sliding post 15 and the second sliding post 16 can be pushed away from each other by the second spring 18, and two ratchets 19 are driven to be detachably connected with the pawl 9. The other end of the sliding bar 17 is fixedly connected with the second sliding post 16. The first sliding post 15 respectively penetrates through the upper connecting plate and the top surface of the sheet body 4. The second sliding post 16 respectively penetrates through the lower connecting plate and the bottom surface of the sheet body 4. A ratchet 19 is respectively penetrated and fixedly connected in the middle of the first sliding post 15 and the middle of the second sliding post 16. The ratchet 19 is detachably connected with the pawl 9.

[0032] For a further optimized solution, a gap is provided between the top surface of the second sliding post 16 and the bottom surface of the first sliding post 15, which is convenient for the first sliding post 15 and the second sliding post 16 to be squeezed and approach each other.

[0033] For a further optimized solution, an adhesive strip 20 is provided directly below the pin 13. The adhesive strip 20 is embedded in the bottom surface of the inner cavity of the pull head 2. The pin 13 is detachably connected with the adhesive strip 20. The pin 13 can penetrate into the adhesive strip 20 and be squeezed by the adhesive strip 20 to keep the position of the pin 13 fixed.

[0034] For a further optimized solution, the side surface of the ratchet 19 is divided into a guiding sliding section and an engaging section. The engaging section of the ratchet 19 is detachably connected with the pawl 9. The guiding sliding section of the ratchet 19 is a conical structure for pushing aside the pawl 9.

[0035] The working process of this embodiment is as follows:

[0036] When the luggage with the zipper pull head of the present utility model is carried out, after the zipper is closed, a slender object such as a key or a toothpick is used to push the hook 11 towards the pull head 2, so that the pin 13 penetrates into the fabric on both sides of the zipper and even penetrates into the adhesive strip 20. At this time, the pin 13 fixes the position of the pull head 2, and the zipper cannot be opened by the pull head 2 anymore.

[0037] At the same time, in order to prevent the hook 11 above the pull head 2 from being hooked and opened by the pull rope 5, the roller 7 is rotated by hand to wind the pull rope 5 on its outer side. When the pull rope 5 is tightened, it will be wrapped around the cap 3, so that the pull rope 5 will no longer be hooked with the hook 11. During the process, when the roller 7 rotates, it will wind the pull rope 5. At the same time, it will drive the pawl 9 to slide on the outer side surface of the ratchet 19. When the pull rope 5 is tightened in place, the ratchet 19 will engage with the pawl 9 to prevent the roller 7 from rotating back.

[0038] When it is necessary to relax the drawstring 5, press the first sliding column 15 and the second sliding column 16 forcefully. One end of the first sliding column 15 and the second sliding column 16 approaches each other, enabling the second sliding column 16 to push the slide bar 17 to squeeze the second spring 18, avoiding the mutual interference between the first sliding column 15 and the second sliding column 16.

[0039] During the process of the first sliding column 15 and the second sliding column 16 approaching each other, they will respectively drive the meshing sections of the two ratchets 19 away from the pawls 9 and push the pawls 9 into the guiding and sliding sections of the ratchets 19, enabling the rotation of the roller 7 to drive the hook end of the pawl 9 to slide on the guiding and sliding sections of the ratchets 19. Conversely, when the first sliding column 15 and the second sliding column 16 return to their initial positions, the guiding and sliding sections of the ratchets 19 will guide the pawls 9 into the meshing sections to achieve re-engagement.

[0040] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the technical field of the present application within the technical scope disclosed by the present application should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An anti-theft zipper pull, comprising a pull tab (1) and a pull head (2), wherein the pull head (2) is detachably connected to the pull tab (1) via a cap (3), characterized in that: The top surface of the pull head (2) is penetrated by a plug-in and slidably connected thereto; the pull sheet (1) comprises a sheet body (4) and a pull rope (5); one end of the pull rope (5) is fixedly connected to a spacer (6); the spacer (6) is fixedly installed inside the sheet body (4); the other end of the pull rope (5) penetrates the spacer (6) and is in sliding contact with the spacer (6); the other end of the pull rope (5) is wound around a roller (7); the roller (7) is rotatably connected to the spacer (6); the roller (7) is away from the spacer (6). One end of the spacer (6) extends out of the sheet body (4), a mounting hole (8) is provided at the center of the roller (7), a ratchet (9) is rotatably connected to the inner wall of the mounting hole (8), one end of the ratchet (9) is detachably connected to a switch assembly, a first spring (10) is fixedly connected between a side surface of the ratchet (9) and the inner wall of the mounting hole (8), the top and bottom ends of the switch assembly respectively penetrate the top surface and the bottom surface of the sheet body (4), and the switch assembly is rotatably connected to the sheet body (4).

2. The anti-theft zipper puller according to claim 1, characterized in that: The plug-in comprises a draw hook (11), one end of which is an open hook structure, the bottom end of which passes through the top surface of the slider (2) and is fixedly connected to a crossbeam (12), the draw hook (11) is slidably connected to the top surface of the slider (2), the two ends of the crossbeam (12) are respectively fixedly connected to insertion pins (13), and the insertion pins (13) are detachably connected to the bottom surface of the inner cavity of the slider (2); the other end of the draw hook (11) is detachably connected to the pull rope (5).

3. The anti-theft zipper puller according to claim 2, characterized in that: The top surface of the cap (3) is provided with a clearance groove (14), and the clearance groove (14) extends to two opposite side surfaces of the cap (3); the top surface of the draw hook (11) is aligned with the clearance groove (14) in the vertical direction.

4. The anti-theft zipper puller according to claim 1, characterized in that: The top and bottom surfaces of the roller (7) are rotatably connected to connecting plates respectively, one end of the connecting plate is fixedly connected to the spacer (6); the switch assembly passes through the connecting plate and is slidably connected to the connecting plate.

5. The anti-theft zipper pull according to claim 4, characterized in that: The switch assembly comprises a first slide post (15) and a second slide post (16). A slide hole is provided on the bottom surface of the first slide post (15). A slide bar (17) is adapted and slidably connected in the slide hole. A second spring (18) is fixedly connected between one end of the slide bar (17) and the top surface of the inner cavity of the slide hole. The other end of the slide bar (17) is fixedly connected to the second slide post (16). The first slide post (15) respectively penetrates the top surface of the connecting plate and the sheet body (4) located above, and the second slide post (16) respectively penetrates the bottom surface of the connecting plate and the sheet body (4) located below; ratchets (19) are respectively penetrated and fixedly connected in the middle of the first slide post (15) and the middle of the second slide post (16). The ratchet (19) is detachably connected to the pawl (9).

6. The anti-theft zipper pull according to claim 5, characterized in that: A gap is provided between the top surface of the second sliding column (16) and the bottom surface of the first sliding column (15).

7. The anti-theft zipper puller according to claim 2, characterized in that: A rubber strip (20) is arranged directly below the insertion pin (13), the rubber strip (20) is embedded in the bottom surface of the inner cavity of the slider (2), and the insertion pin (13) and the rubber strip (20) are detachably connected.

8. The anti-theft zipper pull according to claim 5, characterized in that: The side surface of the ratchet (19) is divided into a guide sliding section and an engagement section. The engagement section of the ratchet (19) is detachably connected to the pawl (9). The guide sliding section of the ratchet (19) is a conical structure and is used to open the pawl (9).

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