Zipper head tensile strength testing device

Abstract

The utility model discloses a zipper head tensile test device, including tensile testing machine, be equipped with upper clamp and lower clamp on tensile testing machine, be equipped with the pull -tab pull hook on the upper clamp, be equipped with the zipper head body fixed clamp on the lower clamp, the pull -tab pull hook includes the tailstock of as leaning on the upper arrangement, as the hook of leaning on the lower arrangement, the chain of one end articulated tailstock, the other end articulated hook is connected in series between the hook and tailstock, the zipper head body fixed clamp includes the clip body, and the left clamping plate and right clamping plate are rotationally connected on the clip body. This tensile test device has the characteristics of convenient operation, and the applicability is strong, and the overall function is perfect, and the practicality is strong.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, and more specifically, it relates to a zipper head tension testing device. Background Technology

[0002] Currently, when testing the tensile strength of zipper pulls, conventional clamps (such as flat clamps and wedge clamps) of general tensile testing machines are often used to fix the zipper pull. Due to the unique structure of the zipper pull, which consists of a movable tab and a main body, conventional clamps have two major problems: First, when fixing the tab, improper clamping area can easily lead to deformation or slippage, preventing precise application of force to the tab's stress hole and affecting the accuracy of the test data. Second, when fixing the zipper pull body, it is difficult to avoid the movable area of ​​the tab, easily applying additional force to the tab, or causing displacement of the main body due to insecure clamping, thus resulting in deviations in the test results. This fails to meet the specific accuracy requirements for zipper pull tensile strength testing, resulting in poor overall performance. Therefore, this invention proposes a zipper pull tensile strength testing device. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a zipper head tension testing device, which is easy to operate and has strong applicability.

[0004] To solve the above-mentioned technical problems, the purpose of this utility model is achieved as follows: The zipper head tension testing device involved in this utility model includes a tensile testing machine, which is provided with an upper clamp and a lower clamp. The upper clamp is provided with a pull tab hook, and the lower clamp is provided with a zipper head body fixing clamp.

[0005] The present invention is further configured such that the pull tab hook includes a tailstock arranged at the top and a hook arranged at the bottom.

[0006] The present invention is further configured such that a chain with one end hinged to the tailstock and the other end hinged to the hook is connected in series between the hook and the tailstock.

[0007] The present invention is further configured such that: the zipper head body fixing clip includes a clip body, a left clip plate and a right clip plate are rotatably connected to the clip body, the left clip plate includes a left clamp head arranged at an upper position and a left grip piece arranged at a lower position, the end of the left clamp head has a left locking head extending to the right, the right clip plate includes a right clamp head arranged at an upper position and a right grip piece arranged at a lower position, the end of the right clamp head has a right locking head extending to the left, and an elastic member is provided between the left grip piece and the right grip piece, with one end abutting against the left grip piece and the other end abutting against the right grip piece.

[0008] The present invention is further configured such that: a left toothed gear integrally formed with the left clamping plate is coaxially arranged thereon, and a right toothed gear integrally formed with the right clamping plate is coaxially arranged thereon, the right toothed gear meshing with the left toothed gear.

[0009] The present invention is further configured such that the elastic element is a compression spring.

[0010] In summary, this utility model has the following beneficial effects: 1. The dedicated pull tab hook precisely hooks into the pull tab hole, and the main body fixing clamp only clamps the zipper head body to avoid slippage, additional deformation or additional force, ensuring accurate transmission of pulling force and more reliable test data.

[0011] 2. Based on the modification of existing tensile testing machines, no new equipment is required; the clamping mechanism is compatible with zipper heads of different specifications, the operation is simple, and the testing efficiency can be improved. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram illustrating the structure of the pull tab hook of this utility model; Figure 3 This is a schematic diagram illustrating the structure of the zipper head fixing clip of this utility model. Detailed Implementation

[0013] To enable those skilled in the art to better understand the technical solution of this utility model, the preferred embodiments of this utility model are described below in conjunction with specific examples. However, it should be understood that these descriptions are only for further illustrating the features and advantages of this utility model, and not for limiting the patent claims of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.

[0014] The present invention will be further described below with reference to the accompanying drawings and preferred embodiments.

[0015] Example 1 See Figures 1 to 3 As shown, the zipper head tension testing device involved in this embodiment includes a tensile testing machine 1, an upper clamp 2 and a lower clamp 3 on the tensile testing machine 1, a pull tab hook 4 on the upper clamp 2, and a zipper head body fixing clamp 5 on the lower clamp 3.

[0016] Furthermore, the pull tab hook 4 includes a tailstock 401 arranged at the top and a hook 402 arranged at the bottom; a chain 403 with one end hinged to the tailstock and the other end hinged to the hook is connected in series between the hook 402 and the tailstock 401.

[0017] Furthermore, the zipper head fixing clip 5 includes a clip body 501, on which a left clip plate and a right clip plate are rotatably connected. The left clip plate includes a left clamp head 502 arranged at the top and a left grip piece 503 arranged at the bottom. The end of the left clamp head 502 has a left locking head 504 extending to the right. The right clip plate includes a right clamp head 505 arranged at the top and a right grip piece 506 arranged at the bottom. The end of the right clamp head 505 has a right locking head 507 extending to the left. An elastic element 508, which abuts against the left grip piece 503 and the right grip piece 506 at the other end, is provided between the left grip piece 503 and the right grip piece 506. The elastic element 508 is a compression spring.

[0018] In this implementation plan, the "zipper pull hook" is first fixed to the upper clamp of the tensile testing machine, and the "zipper head body fixing clamp" is installed on the lower clamp, ensuring that the two are aligned without misalignment. Then, the zipper head pull hole is hooked onto the hook of the pull hook, and the body fixing clamp is used to clamp the part of the zipper head except for the pull, ensuring that the clamping is firm and the pull can be freely subjected to force. Finally, the loading parameters (such as loading speed) of the tensile testing machine are set and the equipment is started. The upper clamp is fixed to the upper and lower clamps (or moves in the set direction) to apply tension to the zipper head until the test is completed, and the equipment automatically records the data.

[0019] Example 2 See Figures 1 to 3 As shown, the zipper head tension testing device involved in this embodiment is further configured based on embodiment 1, wherein a left toothed gear 509 integrally formed with the left clamp is coaxially arranged on the left clamp, and a right toothed gear 510 integrally formed with the right clamp is coaxially arranged on the right clamp, and the right toothed gear 510 meshes with the left toothed gear 509.

[0020] In this embodiment, the left missing tooth gear 509 and the right missing tooth gear 510 are configured so that the opening and closing angles are equal when the left and right clamping plates are opened.

[0021] The zipper head tension testing device involved in this utility model features a dedicated pull tab hook that precisely hooks onto the pull tab hole, and a main body fixing clamp that only clamps the zipper head body, preventing slippage, additional deformation, or additional force, ensuring accurate tensile force transmission and more reliable test data. Furthermore, it is based on an existing tensile testing machine and requires no additional equipment. It is compatible with zipper heads of different specifications, is easy to operate, improves testing efficiency, and has comprehensive functions and strong practicality.

[0022] Unless otherwise specified, in this utility model, terms such as "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the actual orientation or positional relationship shown. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe orientation or positional relationships in this utility model are for illustrative purposes only and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood in conjunction with the embodiments and according to the specific circumstances.

[0023] Unless otherwise expressly specified and limited, the terms "set up," "connected," and "linked" in this utility model should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A zipper pull tensile strength testing device, comprising a tensile testing machine, wherein the tensile testing machine is provided with an upper clamp and a lower clamp, characterized in that: The upper clamp is provided with a pull tab hook, and the lower clamp is provided with a zipper head body fixing clamp.

2. The zipper head tension testing device according to claim 1, characterized in that: The pull tab hook includes a tailstock positioned at the top and a hook positioned at the bottom.

3. The zipper head tension testing device according to claim 2, characterized in that: A chain with one end hinged to the tailstock and the other end hinged to the hook is connected in series between the hook and the tailstock.

4. The zipper pull tension testing device according to any one of claims 1-3, characterized in that: The zipper head fixing clip includes a clip body, on which a left clip plate and a right clip plate are rotatably connected. The left clip plate includes a left clamp head arranged at the top and a left grip piece arranged at the bottom. The end of the left clamp head has a left locking head extending to the right. The right clip plate includes a right clamp head arranged at the top and a right grip piece arranged at the bottom. The end of the right clamp head has a right locking head extending to the left. An elastic element is provided between the left grip piece and the right grip piece, with one end abutting against the left grip piece and the other end abutting against the right grip piece.

5. The zipper head tension testing device according to claim 4, characterized in that: A left missing-tooth gear is coaxially mounted on the left clamping plate and integrated with it, and a right missing-tooth gear is coaxially mounted on the right clamping plate and integrated with it, and the right missing-tooth gear meshes with the left missing-tooth gear.

6. The zipper head tension testing device according to claim 5, characterized in that: The elastic element is a compression spring.

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