A fracture-resistant tension clamp for a push-pull force gauge

Abstract

This application discloses a fracture-resistant tensile clamp for a push-pull force gauge, comprising a base, a force gauge, and a clamp. The force gauge is fixed on the base, and the clamp is used to hold the product under test. The base has a slide rail cavity, in which a slider is slidably fitted, and the slider is rigidly connected to the clamp. The slide rail cavity is filled with a non-Newtonian fluid, and the slider has a fluid shear structure. The fluid shear structure causes the non-Newtonian fluid in the slide rail cavity to generate velocity-related flow resistance when the slider moves. The slide rail cavity includes a main working cavity and a secondary compensation cavity that are interconnected, and a fluid channel is provided between the two cavities. This fracture-resistant tensile clamp for a push-pull force gauge, through the buffering effect of the non-Newtonian fluid and the shear structure, combined with the main and secondary cavity structure of the slide rail cavity, can effectively protect the clamp and equipment under various actual testing conditions, especially when facing sudden tensile impacts. It also has good compatibility with the tested products, and has significant practical value and promotional significance.

Description

Technical Field

[0001] This utility model particularly relates to a fracture-resistant tension clamp for a push-pull force gauge. Background Technology

[0002] In the field of medical testing, especially in the production and quality control of reagent kits, the application of push-pull force gauges is crucial. The assembly, packaging, and some functional tests of reagent kits all require precise force control and measurement. However, existing push-pull force gauge clamps have numerous problems in practical operation. Particularly during testing, sudden impacts (such as vibrations during equipment operation, sample jamming, or improper human operation) can easily cause breakage at the connection between the clamp and the force gauge, as well as the clamp itself. This not only interrupts the testing process, rendering the results invalid, but can also damage expensive reagent kit samples and even cause irreversible damage to the equipment itself. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a fracture-resistant tension clamp for a push-pull force gauge.

[0004] To solve the aforementioned technical problems, this utility model adopts the following technical solution:

[0005] A fracture-resistant tension clamp for a push-pull force gauge includes a base, a force gauge, and a clamp. The force gauge is fixed on the base, and the clamp is used to hold the product being tested. The base has a slide rail cavity, within which a slider is slidably fitted. The slider is rigidly connected to the clamp. The slide rail cavity is filled with a non-Newtonian fluid, and the slider has a fluid shearing structure. This fluid shearing structure causes the non-Newtonian fluid in the slide rail cavity to generate velocity-related flow resistance when the slider moves. The slide rail cavity includes a main working cavity and a secondary compensation cavity that are interconnected, with a fluid channel between the two cavities.

[0006] Preferably, the shearing structure is a serration set on the surface of the slider.

[0007] Preferably, the clamp includes a rotating shaft, a first clamping plate and a second clamping plate, which are rotatably connected by the rotating shaft; the first end of the first clamping plate and the second clamping plate are provided with a locking mechanism, and the second end is provided with a clamping part that cooperates with each other; the first clamping plate and the second clamping plate can rotate around the rotating shaft and the clamping mechanism fixes the position of the clamping plate.

[0008] Preferably, the clamping part is provided with a clamping groove adapted to the shape of the product being measured; the first clamping plate and the second clamping plate can rotate around the rotation axis so that the clamping groove forms a closed clamping space.

[0009] Preferably, the locking mechanism includes a threaded rod with a tightening member threadedly connected to it. One end of the threaded rod passes through the first clamping plate and is threadedly connected to the second clamping plate. The tightening member tightens the first clamping plate and the second clamping plate to clamp the product being tested.

[0010] Preferably, the cross-sectional profile of the clamping groove is V-shaped, planar, or a non-standard groove that matches the shape of the product being tested.

[0011] The beneficial effects of this utility model are:

[0012] This utility model's anti-fracture tensile clamp for push-pull force gauges utilizes the buffering effect of non-Newtonian fluids and shear structures, combined with the main and secondary cavity structure of the slide rail cavity, to effectively protect the clamp and equipment under various actual testing conditions, especially when facing sudden tensile impacts. It also has good compatibility with the tested products, and has significant practical value and promotional significance. Attached Figure Description

[0013] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0014] Figure 1 This is a schematic diagram of the structure of a fracture-resistant tension clamp for a push-pull force gauge according to this application. Figure 1 ;

[0015] Figure 2 This is a schematic diagram of the structure of a fracture-resistant tension clamp for a push-pull force gauge according to this application. Figure 2 . Detailed Implementation

[0016] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.

[0017] The orientation shown in the accompanying drawings should not be construed as limiting the specific protection scope of this utility model, but is only for reference and understanding of preferred embodiments. The product components shown in the drawings can be changed in position, increased in number, or simplified in structure.

[0018] The “connection” in the specification and the “connection” relationship between the components shown in the drawings can be understood as a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or a connection through an intermediate medium. Those skilled in the art can understand the connection relationship according to the specific circumstances and derive different implementation methods such as screwing, riveting, soldering, snap-fitting, or embedding to suitably replace it.

[0019] The directional terms such as up, down, left, right, top, and bottom in the instruction manual and the directions shown in the attached drawings indicate that each component can directly contact or contact each other through other features; for example, "up" can mean directly above or diagonally above, or it simply means above other objects; other directions can be understood by analogy.

[0020] The materials used to manufacture solid-shaped parts as shown in the specification and drawings may be metallic, non-metallic, or other synthetic materials. The machining processes used for solid-shaped parts may include stamping, forging, casting, wire cutting, laser cutting, injection molding, CNC milling, 3D printing, machining, etc. Those skilled in the art may adapt or combine the above materials and manufacturing processes according to different processing conditions, costs, and precision requirements.

[0021] A fracture-resistant tension clamp for a push-pull force gauge includes a base 1, a force gauge 2, and a clamp 3. The force gauge 2 is fixed on the base 1, and the clamp 3 is used to clamp the product 4 to be tested. The base 1 is characterized by having a slide rail cavity 5, in which a slider 6 is slidably fitted, and the slider 6 is rigidly connected to the clamp 3. The slide rail cavity 5 is filled with a non-Newtonian fluid 7, and the slider 6 is provided with a fluid shearing structure 8. The fluid shearing structure 8 causes the non-Newtonian fluid 7 in the slide rail cavity 5 to generate velocity-related flow resistance when the slider 6 moves. The slide rail cavity 5 includes a main working cavity 501 and a secondary compensation cavity 502 that are interconnected, and a fluid channel 503 is provided between the two cavities.

[0022] Furthermore, the shearing structure 8 is a serration set on the surface of the slider 6.

[0023] Furthermore, the clamp 3 includes a rotating shaft 301, a first clamping plate 302 and a second clamping plate 303, which are rotatably connected by the rotating shaft 301. The first end of the first clamping plate 302 and the second clamping plate 303 is provided with a locking mechanism 304, and the second end is provided with a clamping part 305 that cooperates with each other. The first clamping plate 302 and the second clamping plate 303 can rotate around the rotating shaft 301 and the clamping plate position is fixed by the locking mechanism 304.

[0024] Furthermore, the clamping part 305 is provided with a clamping groove 306 that is adapted to the shape of the product 4 to be measured; the first clamping plate 302 and the second clamping plate 303 can rotate around the rotation axis 301 so that the clamping groove 306 forms a closed clamping space.

[0025] Furthermore, the locking mechanism 304 includes a threaded rod 3041, on which a tightening member 3042 is threadedly connected. One end of the threaded rod 3041 passes through the first clamping plate 302 and is threadedly connected to the second clamping plate 303. The tightening member 3042 tightens the first clamping plate 302 and the second clamping plate 303 to clamp the product 4 being tested.

[0026] Furthermore, the cross-sectional profile of the clamping groove 306 is V-shaped, planar, or a non-standard groove that matches the shape of the product being tested.

[0027] The working principle of this utility model is as follows:

[0028] like Figures 1 to 2 As shown, a fracture-resistant tension clamp for a push-pull force gauge includes a base 1, a force gauge 2, and a clamp 3. The force gauge 2 is fixedly installed above the base 1 for applying tension and measuring. The clamp 3 is used to hold the product 4 to be tested. A slide rail cavity 5 is provided on the base 1, and a slider 6 is slidably fitted inside the slide rail cavity 5. The slider 6 is rigidly connected to the clamp 3, so that the clamp 3 can drive the slider 6 to slide within the slide rail cavity 5 under the action of tension.

[0029] The slide rail cavity 5 is filled with a non-Newtonian fluid 7, and the surface of the slider 6 is provided with a fluid shear structure 8. In this embodiment, the fluid shear structure 8 is a uniformly distributed serrated structure. When the slider 6 moves in the slide rail cavity 5, the serrated structure will shear the non-Newtonian fluid 7, causing the non-Newtonian fluid 7 to generate flow resistance related to the moving speed of the slider 6. This resistance can effectively buffer the impact force generated by the tension, preventing the connection between the clamp 3 and the base 1, as well as the clamp itself, from breaking or being damaged due to excessive force. The slide rail cavity 5 includes a main working cavity 501 and a secondary compensation cavity 502 that are interconnected. The two cavities are connected by a fluid channel 503. During the movement of the slider 6, the non-Newtonian fluid 7 can flow between the main working cavity 501 and the secondary compensation cavity 502 through the fluid channel 503, ensuring the pressure balance of the non-Newtonian fluid 7 in the slide rail cavity 5, ensuring the smooth movement of the slider 6, thereby improving the stability of the clamp 3's movement and ensuring the accuracy of the tension detection. (Specifically, in Example 1, during normal slow-pull operation, the non-Newtonian fluid in the main working chamber flows slowly under shear force, flowing into the secondary compensation chamber through the fluid channel to maintain pressure balance and provide smooth resistance to the slider. However, when faced with a sudden rapid impact pull, the pressure in the main working chamber increases sharply, and the fluid in the fluid channel quickly becomes saturated, causing the fluid to stagnate in the main working chamber 501. At this time, the non-Newtonian fluid exhibits significant shear thickening characteristics under high shear stress, and its viscosity increases sharply, generating strong flow resistance to buffer and disperse the impact force, thereby effectively protecting the fixture and the tested product from instantaneous excessive impact, ensuring the safety and continuity of the testing process. When the sudden rapid impact pull disappears, the fluid becomes thinner and resumes flow.)

[0030] The fixture 3 includes a rotating shaft 301, a first clamping plate 302, and a second clamping plate 303, which are rotatably connected via the rotating shaft 301. One end of the first clamping plate 302 and the second clamping plate 303 is provided with a locking mechanism 304, and the other end is provided with a clamping part 305 that cooperates with each other. The clamping part 305 is provided with a clamping groove 306 that adapts to the shape of the product 4 being measured. The cross-sectional profile of the clamping groove 306 can be designed as a V-shape, a flat shape, or a non-standard groove that matches the shape of a specific product being measured, depending on the common shapes of the products being measured. By rotating the first clamping plate 302 and the second clamping plate 303, the clamping groove 306 forms a closed clamping space, thereby adapting to products 4 of different shapes and specifications, greatly enhancing the adaptability of the fixture 3. The locking mechanism 304 adopts a threaded rod structure. A tightening element 3042 is threadedly connected to the threaded rod 3041. One end of the threaded rod 3041 passes through the first clamping plate 302 and is threadedly connected to the second clamping plate 303. By rotating the tightening element 3042, the first clamping plate 302 and the second clamping plate 303 can clamp the product under test 4 relative to each other, so as to achieve stable clamping of the product under test, ensure that the product under test 4 will not loosen or shift during the tensile test, and improve the reliability of the test results.

[0031] In practical use, assuming the tension range of the push-pull force gauge is set to 0-100N, when performing tension testing on a product under test, the initial tension increases slowly and uniformly. The slider 6 moves smoothly within the slide rail cavity 5. The non-Newtonian fluid 7 generates moderate flow resistance under the action of the serrated fluid shear structure 8, ensuring that the clamp 3 applies a stable tension. When the tension approaches 80N, due to equipment vibration (such as ground vibration caused by the operation of other large equipment in the workshop being transmitted to the testing equipment), the slider 6 suddenly accelerates, and the tension instantaneously exceeds the critical value of 100N. At this time, the slider 6 accelerates, and the flow resistance of the non-Newtonian fluid 7 increases sharply with the shear rate, rapidly generating a large viscous force. This buffers and disperses the excessive tension impact, effectively preventing the connection between the clamp 3 and the base 1 from breaking due to excessive force. Simultaneously, it avoids the tested product 4 from suddenly breaking due to excessive instantaneous tension, ensuring the continuity of the testing process and the safety of the equipment.

[0032] This utility model's anti-fracture tensile clamp for push-pull force gauges utilizes the buffering effect of non-Newtonian fluids and shear structures, combined with the main and secondary cavity structure of the slide rail cavity, to effectively protect the clamp and equipment under various actual testing conditions, especially when facing sudden tensile impacts. It also has good compatibility with the tested products, and has significant practical value and promotional significance.

[0033] Although the present invention has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art that various changes or modifications can be made to the present invention without departing from the principles and spirit of the present invention as defined by the claims. Therefore, the detailed description of the embodiments in this disclosure is for explanation only and not for limiting the present invention, but rather the scope of protection is defined by the content of the claims.

Claims

1. A fracture-resistant tension clamp for a push-pull force gauge, comprising a base (1), a force gauge (2), and a clamp (3), wherein the force gauge (2) is fixed on the base (1), and the clamp (3) is used to clamp the product (4) to be tested, characterized in that: The base (1) is provided with a slide rail cavity (5), and a slider (6) is slidably fitted inside the slide rail cavity (5). The slider (6) is rigidly connected to the clamp (3). The slide rail cavity (5) is filled with a non-Newtonian fluid (7). The slider (6) is provided with a fluid shearing structure (8). The fluid shearing structure (8) causes the non-Newtonian fluid (7) in the slide rail cavity (5) to generate velocity-related flow resistance when the slider (6) moves. The slide rail cavity (5) includes a main working cavity (501) and a secondary compensation cavity (502) that are interconnected. A fluid channel (503) is provided between the two cavities.

2. The anti-breakage tension clamp for a push-pull force gauge according to claim 1, characterized in that, The shearing structure (8) is a sawtooth set on the surface of the slider (6).

3. The anti-breakage tension clamp for a push-pull force gauge according to claim 1, characterized in that, The clamp (3) includes a rotating shaft (301), a first clamping plate (302) and a second clamping plate (303). The first clamping plate (302) and the second clamping plate (303) are rotatably connected by the rotating shaft (301). The first end of the first clamping plate (302) and the second clamping plate (303) are provided with a locking mechanism (304), and the second end is provided with a clamping part (305) that cooperates with each other. The first clamping plate (302) and the second clamping plate (303) can rotate around the rotating shaft (301) and the clamping plate position is fixed by the locking mechanism (304).

4. The anti-breakage tension clamp for a push-pull force gauge according to claim 3, characterized in that, The clamping part (305) is provided with a clamping groove (306) that is adapted to the shape of the product (4) being measured; the first clamping plate (302) and the second clamping plate (303) can rotate around the rotating shaft (301) so that the clamping groove (306) forms a closed clamping space.

5. The anti-breakage tension clamp for a push-pull force gauge according to claim 3, characterized in that, The locking mechanism (304) includes a threaded rod (3041), and a tightening member (3042) is threadedly connected to the threaded rod (3041). One end of the threaded rod (3041) passes through the first clamping plate (302) and is threadedly connected to the second clamping plate (303). The tightening member (3042) tightens the first clamping plate (302) and the second clamping plate (303) to clamp the product under test (4).

6. The anti-breakage tension clamp for a push-pull force gauge according to claim 4, characterized in that, The cross-sectional profile of the clamping groove (306) is V-shaped, planar, or a non-standard groove that matches the shape of the product being measured.

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