Lower stop device of double-separation zipper

By designing a lower stop device including rollers, springs, moving rods and bumps, it is possible to increase frictional stop when the double-open-tail zipper head is not required to move, and reduce frictional force when it is necessary to move, which facilitates solving the problems of insufficient and excessive friction in the prior art, and extends the use time of the device.

CN222840577UActive Publication Date: 2025-05-09ZHEJIANG HUAGUAN ZIPPER CO LTD
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Patent Information

Application Number
CN202421658470.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-15
Publication Date
2025-05-09
Estimated Expiration
2034-07-15

AI Technical Summary

Technical Problem

The existing double-open-tail zippers prevent inconvenience due to insufficient friction when moving downward. Too much friction will affect opening and closing, and it is impossible to effectively control the zipper's downward stop and pulling convenience.

Method used

A lower stop device including a roller, a spring, a moving rod and a bump is designed. When the zipper does not need to be moved, the roller and the bump are pushed by the spring to increase the frictional force; when pulling is required, friction is reduced by the pulling ring and the connecting rope for easy pulling.

Benefits of technology

It is realized that the friction force is increased when the zipper head is not needed to move, and the friction force is reduced when it is necessary to move is easy to pull, which solves the problems of insufficient and excessive friction in the prior art, and extends the use time of the device.

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Abstract

The utility model relates to the technical field of double-separating zippers, in particular to a lower stop device of a double-separating zipper, which comprises a main body, the main body comprises a second zipper head, a connecting mechanism is mounted on the surface of the second zipper head and comprises a first bump, and the surface of the first bump is fixedly connected with the surface of the second zipper head. The surface of the rotating shaft is fixedly connected with a rolling wheel, the left side surface of the rolling wheel is fixedly connected with a spring, the right side surface of the rolling wheel is fixedly connected with a second convex block, and the first moving rod is fixedly connected with the right side surface of the rolling wheel; the left side surface of the first moving rod is fixedly connected with a second moving rod. According to the utility model, the friction force can be increased when the position of the zipper head does not need to be moved, and the friction force can be reduced when the zipper head needs to be moved, so that not only can the lower stop be realized, but also the zipper can be conveniently pulled.
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Description

Technical Field

[0001] The utility model relates to the field of double-open-end zippers, in particular to a bottom stop device of the double-open-end zipper. Background Art

[0002] A double-end zipper (also called a double-open zipper or a reverse-open detachable zipper) is a special zipper design, which is characterized by the fact that both ends of the zipper can be separated, also known as a two-end zipper. This design makes it easier to put on and take off, and also allows the lower zipper to be opened to a suitable position when a large degree of freedom is required (such as taking big steps, squatting, sitting, etc.), thereby providing more room for movement.

[0003] The common double-end zippers on the market often use friction to prevent the zipper from moving downward due to gravity or the tension on the zipper caused by the user walking. However, if the friction is too large, it will affect the opening and closing of the zipper, while if the friction is too small, the zipper will move downward uncontrollably during use, causing inconvenience to the user. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a bottom stop device for a double-open-end zipper.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a bottom stop device of a double-open-tail zipper, comprising a main body, the main body comprising a second zipper head, the surface of the second zipper head is installed with a connecting mechanism, the connecting mechanism comprises a first protrusion, the surface of the first protrusion is fixedly connected to the surface of the second zipper head, the second zipper head is installed on the surface of the first protrusion, a rotating mechanism is installed inside the first protrusion, the rotating mechanism comprises a rotating shaft, the rotating shaft is movably connected to the inside of the first protrusion, a roller is fixedly connected to the surface of the rotating shaft, the left side surface of the roller is fixedly connected to a spring, the right side surface of the roller is fixedly connected to the second protrusion, the right side surface of the roller is installed with a bottom stop mechanism, the bottom stop mechanism comprises a first moving rod, the first moving rod is fixedly connected to the right side surface of the roller, and the left side surface of the first moving rod is fixedly connected to the second moving rod.

[0006] As a further description of the above technical solution:

[0007] A first zipper head is installed on the surface of the first protrusion, a first groove is opened on the surface of the first zipper head, a connecting block is fixedly connected to the surface of the first protrusion, the connecting block is located inside the first groove, and a pressure block is fixedly connected to the surface of the first zipper head.

[0008] As a further description of the above technical solution:

[0009] A second groove is formed on the surface of the first protrusion, the roller is located inside the second groove, a third protrusion is fixedly connected to the surface of the roller, and the end of the rotating shaft is movably connected to the surface of the second groove.

[0010] As a further description of the above technical solution:

[0011] A fifth groove is formed on the surface of the first protrusion, the second protrusion is located inside the fifth groove, a third groove is formed inside the first protrusion, and the first moving rod is located inside the third groove.

[0012] As a further description of the above technical solution:

[0013] A first through hole is formed on the surface of the first protrusion, a fourth groove is formed on the inner wall of the first through hole, and the second moving rod passes through the fourth groove and extends to the inside of the first through hole.

[0014] As a further description of the above technical solution:

[0015] A second through hole is opened on the surface of the second moving rod, and a fixing mechanism is installed inside the second through hole. The fixing mechanism includes a connecting rope, and the surface of the connecting rope is fixedly connected to the surface of the second through hole. The end of the connecting rope is fixedly connected to a pull ring.

[0016] The utility model has the following beneficial effects:

[0017] 1. Compared with the prior art, the bottom stop device of the double-open-end zipper is provided with a roller, a spring, a second moving rod and a second protrusion. In use, when the zipper is pulled to a certain height and does not need to be moved, the spring installed on the left side of the roller in the first protrusion pushes the roller installed on the right side of the spring to the right, and the second protrusion fixed on the right side of the roller enters the fifth groove opened on the surface of the first protrusion. At this time, the roller is no longer movably connected with the rotating shaft, and the third protrusion fixed on the surface of the roller also contacts with the surface of the zipper, generating a large friction force, so that the zipper cannot be moved within the set tension, that is, the bottom stop of the zipper is completed. When the zipper needs to be pulled, the pull ring in the first protrusion is pulled, and the connecting rope on the pull ring is connected to the second moving rod in the first protrusion. The second moving rod is pulled to the left. At this time, the second The first moving rod fixed at the end of the moving rod moves to the left, driving the roller movably connected to the left side of the first moving rod to move to the left, so that the spring on the left side of the roller is compressed, and the second protrusion fixed on the right side of the roller disengages from the fifth groove. At this time, the roller is movably connected to the rotating shaft, and can generate rolling friction with the surface of the zipper, thereby reducing the friction force. Compared with conventional zippers, friction force is often used to prevent the zipper from moving downward due to gravity or tension on the zipper generated by the user when walking. However, if the friction force is too large, it will affect the opening and closing of the zipper, while if the friction force is too small, the zipper will move downward uncontrollably during use, causing inconvenience to the user. The device can increase the friction force when the zipper head position does not need to be moved, and reduce the friction force when the zipper head needs to be moved. It can both stop the zipper and facilitate pulling when the zipper is pulled.

[0018] 2. Compared with the prior art, the bottom stop device of the double-open-end zipper is provided with a first zipper head, a second zipper head, a first protrusion and a connecting block. When in use, the first protrusion fixed on the second zipper head extends through the first zipper head to the left surface of the first zipper head, and the connecting block fixed on the surface of the first protrusion is inserted into the interior of the first zipper head, so that the first zipper head and the second zipper head are tightly connected. After being used for a long time, it is not easy for the first zipper head and the second zipper head to be separated, thereby extending the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a bottom stop device of a double-open-end zipper proposed by the utility model;

[0020] Figure 2 A cross-sectional view of a bottom stop device of a double-open-end zipper proposed by the utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of a bottom stop device of a double-open-end zipper proposed by the utility model from a first perspective;

[0022] Figure 4The utility model provides a bottom stop device for a double-open-end zipper. Figure 3 A magnified view of the structure at A;

[0023] Figure 5 The utility model is a schematic diagram of the internal structure of the bottom stop device of the double-open-end zipper from a second viewing angle.

[0024] Legend:

[0025] 1. Main body; 101. First zipper head; 102. Second zipper head; 103. First groove; 104. Pressing block; 2. Connecting mechanism; 201. First protrusion; 202. Second groove; 203. Third groove; 204. Fourth groove; 205. First through hole; 206. Connecting block; 207. Fifth groove; 3. Rotating mechanism; 301. Roller; 302. Second protrusion; 303. Rotating shaft; 304. Spring; 305. Third protrusion; 4. Lower stop mechanism; 401. First moving rod; 402. Second moving rod; 403. Second through hole; 5. Fixing mechanism; 501. Connecting rope; 502. Pull ring. DETAILED DESCRIPTION

[0026] Reference Figure 1-5 The utility model provides a bottom stop device for a double open-tail zipper: comprising a main body 1, the main body 1 comprising a second zipper head 102, a connecting mechanism 2 being installed on the surface of the second zipper head 102, the connecting mechanism 2 comprising a first protrusion 201, the surface of the first protrusion 201 being fixedly connected to the surface of the second zipper head 102, the surface of the first protrusion 201 being installed with the second zipper head 102, a rotating mechanism 3 being installed inside the first protrusion 201, the rotating mechanism 3 comprising a rotating shaft 303, the rotating shaft 303 being movably connected to the inside of the first protrusion 201, a roller 301 being fixedly connected to the surface of the rotating shaft 303, a spring 304 being fixedly connected to the left surface of the roller 301, a second protrusion 302 being fixedly connected to the right surface of the roller 301, a bottom stop mechanism 4 being installed on the right surface of the roller 301, the bottom stop mechanism 4 comprising a first moving rod 401, the first moving rod 401 being fixedly connected to the right surface of the roller 301, and a second moving rod 402 being fixedly connected to the left surface of the first moving rod 401.

[0027] The first zipper head 101 is installed on the surface of the first protrusion 201, the first zipper head 101 has a first groove 103, the surface of the first protrusion 201 is fixedly connected with a connecting block 206, the connecting block 206 is located inside the first groove 103, the surface of the first zipper head 101 is fixedly connected with a pressing block 104, the surface of the first protrusion 201 has a second groove 202, the roller 301 is located inside the second groove 202, the surface of the roller 301 is fixedly connected with a third protrusion 305, the end of the rotating shaft 303 is movably connected to the surface of the second groove 202, the surface of the first protrusion 201 has a fifth groove 207, the second protrusion 302 is located in the fifth Inside the groove 207, a third groove 203 is provided inside the first protrusion 201, the first moving rod 401 is located inside the third groove 203, a first through hole 205 is provided on the surface of the first protrusion 201, a fourth groove 204 is provided on the inner wall of the first through hole 205, the second moving rod 402 passes through the fourth groove 204 and extends to the inside of the first through hole 205, a second through hole 403 is provided on the surface of the second moving rod 402, a fixing mechanism 5 is installed inside the second through hole 403, the fixing mechanism 5 includes a connecting rope 501, the surface of the connecting rope 501 is fixedly connected to the surface of the second through hole 403, and the end of the connecting rope 501 is fixedly connected to a pull ring 502.

[0028] Working principle: when the zipper is pulled to a certain height and does not need to be moved, the spring 304 installed on the left side of the roller 301 in the first protrusion 201 pushes the roller 301 installed on the right side of the spring 304 to the right, and the second protrusion 302 fixed on the right side of the roller 301 enters the fifth groove 207 opened on the surface of the first protrusion 201. At this time, the roller 301 and the rotating shaft 303 are no longer movably connected, and the third protrusion 305 fixed on the surface of the roller 301 also contacts the surface of the zipper, generating a large friction force, so that the zipper cannot be moved within the set tension, that is, the lower stop of the zipper is completed. When the zipper needs to be pulled, the pull ring 502 in the first protrusion 201 is pulled, and the connecting rope 501 on the pull ring 502 is connected to the second moving rod 402 in the first protrusion 201. The second moving rod 402 is pulled to the left. At this time, the end of the second moving rod 402 The fixed first moving rod 401 moves to the left, driving the roller 301 movably connected to the left side of the first moving rod 401 to move to the left, so that the spring 304 on the left side of the roller 301 is compressed, and the second protrusion 302 fixed on the right side of the roller 304 disengages from the fifth groove 207. At this time, the roller 301 is movably connected to the rotating shaft 303, and can generate rolling friction with the surface of the zipper, thereby reducing the friction and facilitating pulling. The first protrusion 201 fixed on the second zipper head 102 passes through the first zipper head 101 and extends to the left side surface of the first zipper head 101, and the connecting block 206 fixed on the surface of the first protrusion 201 is inserted into the interior of the first zipper head 101, so that the first zipper head 101 and the second zipper head 102 are tightly connected. After being used for a long time, it is not easy for the first zipper head 101 to be separated from the second zipper head 102, thereby extending the service life of the device.

[0029] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A bottom stop device for a double-open-end zipper, comprising a main body (1), characterized in that: The main body (1) comprises a second zipper head (102), a connection mechanism (2) is installed on the surface of the second zipper head (102), the connection mechanism (2) comprises a first protrusion (201), the surface of the first protrusion (201) is fixedly connected to the surface of the second zipper head (102), the second zipper head (102) is installed on the surface of the first protrusion (201), a rotating mechanism (3) is installed inside the first protrusion (201), the rotating mechanism (3) comprises a rotating shaft (303), and the rotating shaft (303) is movably connected to the first protrusion (201). Inside, the surface of the rotating shaft (303) is fixedly connected to a roller (301), the left surface of the roller (301) is fixedly connected to a spring (304), the right surface of the roller (301) is fixedly connected to a second protrusion (302), the right surface of the roller (301) is installed with a lower stop mechanism (4), the lower stop mechanism (4) comprises a first moving rod (401), the first moving rod (401) is fixedly connected to the right surface of the roller (301), and the left surface of the first moving rod (401) is fixedly connected to a second moving rod (402).

2. A bottom stop device for a double-open-end zipper according to claim 1, characterized in that: A first zipper head (101) is mounted on the surface of the first protrusion (201), a first groove (103) is provided on the surface of the first zipper head (101), a connecting block (206) is fixedly connected to the surface of the first protrusion (201), the connecting block (206) is located inside the first groove (103), and a pressing block (104) is fixedly connected to the surface of the first zipper head (101).

3. The bottom stop device of a double-open-end zipper according to claim 1, characterized in that: A second groove (202) is formed on the surface of the first protrusion (201), the roller (301) is located inside the second groove (202), a third protrusion (305) is fixedly connected to the surface of the roller (301), and an end of the rotating shaft (303) is movably connected to the surface of the second groove (202).

4. The bottom stop device of a double-open-end zipper according to claim 1, characterized in that: A fifth groove (207) is formed on the surface of the first protrusion (201), the second protrusion (302) is located inside the fifth groove (207), a third groove (203) is formed inside the first protrusion (201), and the first moving rod (401) is located inside the third groove (203).

5. The bottom stop device of a double-open-end zipper according to claim 1, characterized in that: A first through hole (205) is formed on the surface of the first protrusion (201), a fourth groove (204) is formed on the inner wall of the first through hole (205), and the second moving rod (402) passes through the fourth groove (204) and extends to the interior of the first through hole (205).

6. The bottom stop device of a double-open-end zipper according to claim 1, characterized in that: A second through hole (403) is provided on the surface of the second moving rod (402), a fixing mechanism (5) is installed inside the second through hole (403), and the fixing mechanism (5) comprises a connecting rope (501), the surface of the connecting rope (501) is fixedly connected to the surface of the second through hole (403), and the end of the connecting rope (501) is fixedly connected to a pull ring (502).