A rubber tensile tester
By designing a rubber tensile testing instrument, and employing a frame, fixing components, and clamping components, the problem of controlling the tensile length and fracture location in the tensile testing of rubber products was solved, achieving accurate measurement and stable testing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN ZHIYING RUBBER & PLASTIC CO LTD
- Filing Date
- 2025-06-19
- Publication Date
- 2026-07-07
AI Technical Summary
Existing technologies for tensile testing of rubber products suffer from the inability to precisely control the tensile length and fracture location, resulting in insufficient repeatability and accuracy of test results.
Design a rubber tensile tester, which uses a frame, a fixing component, a telescopic component, and a clamping component. The fixing component stabilizes both ends of the rubber product, the telescopic component controls the stretching, the clamping component precisely controls the stretching length, and the measuring plate records the fracture location.
It enables precise measurement of the tensile strength of rubber products, improves the stability and accuracy of testing, and enhances the applicability and ease of operation of the equipment.
Smart Images

Figure CN224471406U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mechanical property testing technology for rubber products, and in particular to a rubber tensile tester. Background Technology
[0002] Performance testing of rubber products is an indispensable part of industrial production, as their tensile strength directly affects product quality and lifespan. In modern industry, whether in the automotive, aerospace, or consumer goods sectors, the demand for tensile testing of rubber products is increasing daily. Accurate measurement of the tensile strength of rubber products not only ensures product quality meets standards but also provides crucial reference data for product design optimization, thereby driving technological advancement across the entire industry.
[0003] Currently, the industry commonly uses three main methods for tensile testing of rubber products: manual tensile testing devices, simple clamping devices, and mechanical tensile testing equipment. Manual tensile testing devices involve manually applying tension and observing the fracture; they are simple to operate but have low accuracy. Simple clamping devices use bolts or blocks to fix both ends of the rubber product and work in conjunction with an external tensile testing device, but their clamping position and tensile length are difficult to control precisely. Mechanical tensile testing equipment uses a motor to automate the tensile process and is usually equipped with sensors to record tensile data; however, the equipment has a complex structure and is expensive.
[0004] However, existing technologies, whether using manual or mechanical devices, suffer from the inability to precisely control the tensile length of rubber products during testing, limiting the repeatability and accuracy of test results. Furthermore, there is a lack of convenient and effective methods for recording the fracture location of rubber products, further impacting testing efficiency and data reliability. Utility Model Content
[0005] This application provides a rubber tensile tester, which facilitates improved stability during rubber testing, thereby ensuring data accuracy.
[0006] This application provides a rubber tensile testing instrument, which adopts the following technical solution:
[0007] A rubber tensile tester includes a frame, on which a first fixing component and a second fixing component are mounted. A telescopic component is mounted on the top of the first fixing component. A rubber product is fixed by the first fixing component and the second fixing component. The up-and-down movement of the first fixing component is controlled to pull the rubber product. The tensile force is measured at the location of the break. A fixing rod is also mounted on the frame, and a clamping component is mounted on the fixing rod. The clamping component is used to clamp a section of the rubber product to control the length of the rubber product's stretch.
[0008] By adopting the above technical solution, this utility model designs a rubber tensile testing instrument that can accurately measure the tensile force of rubber products during use. The frame provides a stable support structure for the entire device. The first and second fixing components respectively fix the two ends of the rubber product, ensuring stable clamping of the rubber product during testing. The telescopic component controls the up-and-down movement of the first fixing component to achieve the stretching operation of the rubber product, thereby simulating the force conditions in actual use. The clamping component on the fixed rod can precisely clamp a certain section of the rubber product, effectively controlling the stretching length and improving testing accuracy.
[0009] Preferably, the first fixing component includes a first fixing frame disposed on the frame, and a first clamping block is rotatably connected to the first fixing frame, the first clamping block being responsible for fixing the upper end of the rubber product.
[0010] By adopting the above technical solution, this design ensures the stability of the rubber product during testing, preventing slippage during stretching and thus improving the accuracy and reliability of the test results. Simultaneously, the rotating connection method makes the operation of the first clamping block more flexible and convenient.
[0011] Preferably, the second fixing component includes a second fixing frame disposed on the frame, and a second clamping block is rotatably connected to the second fixing frame, the second clamping block being responsible for fixing the lower end of the rubber product.
[0012] By adopting the above technical solution, the cooperation between the second fixing frame and the second clamping block during use ensures that the lower end of the rubber product will not slip or shift during tensile testing, thereby improving the accuracy of the test results. At the same time, the rotating connection design makes the operation of the second clamping block more convenient, allowing testing personnel to quickly complete the installation and fixing of the rubber product.
[0013] Preferably, both the first and second clamping blocks are provided with a pull rod and a spring. The pull rod is fixedly connected to the clamping block, and the spring is sleeved on the pull rod to provide force to the clamping block after it is fixed.
[0014] By adopting the above technical solution, the pull rod facilitates the rotation of the clamping block during use, and the spring sleeve on the pull rod provides a continuous force to the clamping block after it is fixed. This structure ensures that the clamping block firmly holds the rubber product, preventing the rubber product from loosening or slipping during tensile testing.
[0015] Preferably, the telescopic component is a telescopic motor mounted on the top of the first fixed frame, the telescopic motor is mounted inside the frame, and the output shaft of the telescopic motor is fixed to the top of the first fixed frame.
[0016] By adopting the above technical solution, during use, the telescopic motor is installed inside the frame, and its output shaft is fixed to the top of the first fixed frame, enabling precise control of the up-and-down movement of the first fixed component. This design achieves controllable stretching of rubber products, ensuring the stability and accuracy of the tensile testing process.
[0017] Preferably, the clamping assembly includes a first clamping plate and a second clamping plate, a clamping space is formed between the first clamping plate and the second clamping plate, and the first clamping plate and the second clamping plate are connected by a locking member.
[0018] By adopting the above technical solution, the clamping space between the first clamping plate and the second clamping plate ensures the effective fixation of a certain section of the rubber product during use, and the length of stretching is controlled by the fixed length.
[0019] Preferably, the locking component includes a locking bolt disposed on the first clamping plate, and a locking hole disposed on the second clamping plate, wherein the locking bolt passes through the locking hole and is fixed by a nut.
[0020] By adopting the above technical solution, this design allows the clamping component to firmly clamp a section of the rubber product during use, preventing slippage or loosening during stretching, thereby ensuring the accuracy of the measurement results.
[0021] Preferably, a measuring plate is provided on one side of the first fixing component and the second fixing component, and the measuring plate can record the location of the breakage of the rubber product.
[0022] By adopting the above technical solution, when in use, the measuring plate is set on one side of the first fixing component and the second fixing component, which can accurately record the specific location of the rubber product breaking during the tensile test.
[0023] In summary, this application has the following beneficial effects:
[0024] 1. The present invention relates to a rubber tensile tester, which, by setting a first fixing component and a second fixing component on the frame, and in conjunction with a telescopic component, achieves stable clamping and precise stretching of rubber products, and can accurately measure the tensile value of rubber products, thereby improving the testing accuracy;
[0025] 2. The rubber tensile tester designed in this utility model is equipped with a clamping component, which can accurately control the tensile length of rubber products, meet the testing requirements of products of different specifications, and improve the applicability of the equipment; Attached Figure Description
[0026] Figure 1 This is a schematic diagram of the structure of an embodiment;
[0027] Figure 2 This is an enlarged schematic diagram showing the first fixing component in the embodiment;
[0028] Figure 3 This is an enlarged schematic diagram showing the second fixing component in the embodiment;
[0029] Explanation of reference numerals in the attached drawings: 1. Frame; 2. First fixing component; 21. First fixing frame; 22. First clamping block; 3. Second fixing component; 31. Second fixing frame; 32. Second clamping block; 4. Telescopic component; 41. Telescopic motor; 5. Fixing rod; 6. Clamping component; 61. First clamping plate; 62. Second clamping plate; 7. Pull rod; 8. Spring; 9. Locking element; 91. Locking bolt; 10. Measuring plate. Detailed Implementation
[0030] The present invention will be further described in detail below with reference to the accompanying drawings. Identical components are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," "lower," "bottom," and "top" used in the following description refer to directions in the accompanying drawings, while the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.
[0031] This utility model discloses a rubber tensile tester, such as Figures 1 to 3 As shown, the assembly includes a frame 1, on which a first fixing component 2 and a second fixing component 3 are mounted. The first fixing component 2 includes a first fixing bracket 21 mounted on the frame 1, with a first clamping block 22 rotatably connected to the first fixing bracket 21. The first clamping block 22 is responsible for fixing the upper end of the rubber product. The first clamping block 22 is rotatably connected to the first fixing bracket 21 via a pin. The first clamping block 22 can be made of aluminum alloy to reduce weight while ensuring strength. The second fixing component 3 includes a second fixing bracket 31 and a second clamping block 32 rotatably connected to the second fixing bracket 31. The second clamping block 32 is responsible for fixing the lower end of the rubber product. The second fixing bracket 31 has a similar structure to the first fixing bracket 21. Both the first clamping block 22 and the second clamping block 32 are equipped with a pull rod 7 and a spring 8. The pull rod 7 is made of stainless steel. One end of the pull rod 7 is welded to the clamping block, and the other end passes through a guide hole on the fixing bracket. The spring 8 is sleeved on the outside of the pull rod 7. The spring 8 is a compression spring with moderate elasticity, providing stable clamping force. When it is necessary to fix the rubber product, manually pull the lever 7 to rotate the clamping block, place the rubber product on the fixing frame, and after releasing the lever 7, the spring 8 returns to its original position and drives the clamping block to press the rubber product.
[0032] The top of the first fixing component 2 is provided with a telescopic component 4. The rubber product is fixed by the first fixing component 2 and the second fixing component 3. The up and down movement of the first fixing component 2 is controlled to pull the rubber product. The tensile force is measured by the location of its breakage. The telescopic component 4 is provided with a telescopic motor 41 on the top of the first fixing frame 21. The telescopic motor 41 is set in the frame 1. The output shaft of the telescopic motor 41 is fixed to the top of the first fixing frame 21.
[0033] A fixing rod 5 is also provided on the frame 1, which is fixed to the frame 1 and used to install the clamping assembly 6. The fixing rod 5 can be cylindrical or square in cross-section and made of steel or aluminum alloy. The clamping assembly 6 includes a first clamping plate 61 and a second clamping plate 62, forming a clamping space between the first clamping plate 61 and the second clamping plate 62, which are connected by a locking member 9. The locking member 9 includes a locking bolt 91 provided on the first clamping plate 61, and a locking hole provided on the second clamping plate 62. The locking bolt 91 passes through the locking hole and is fixed by a nut. The first clamping plate 61 and the second clamping plate 62 are made of high-strength plastic or metal, and the surface is provided with anti-slip texture to increase friction. The size of the clamping space can be adjusted according to the specifications of the rubber product to ensure reliable clamping.
[0034] A measuring plate 10 is provided on one side of the first fixing component 2 and the second fixing component 3. The measuring plate 10 can record the location of the breakage of the rubber product. The measuring plate 10 can use a photoelectric sensor, which can automatically record the breakage location through electronic signals, thereby improving measurement accuracy. As an optimization design, an illumination device can be added to the measuring plate 10 to improve lighting conditions and enhance reading accuracy.
[0035] Working Principle: This utility model discloses a rubber tensile testing instrument. The first fixing component 2 and the second fixing component 3 fix both ends of a rubber product. A telescopic component 4 controls the up-and-down movement of the first fixing component 2, applying tensile force to the rubber product until it breaks. A clamping component 6 can clamp a specific section of the rubber product, precisely controlling the tensile length. A measuring plate 10 records the fracture location, and the tensile strength of the rubber product is calculated based on the tensile force data. This design, by adding the clamping component 6 and the measuring plate 10, improves testing accuracy and safety, while simplifying the operation process and reducing the labor intensity of operators.
[0036] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A rubber tensile strength tester, characterized in that: The system includes a frame (1), on which a first fixing component (2) and a second fixing component (3) are provided. A telescopic component (4) is provided on the top of the first fixing component (2). The rubber product is fixed by the first fixing component (2) and the second fixing component (3). The up and down movement of the first fixing component (2) is controlled to pull the rubber product. The tensile force is measured by the location of its breakage. A fixing rod (5) is also provided on the frame (1). A clamping component (6) is provided on the fixing rod (5). The clamping component (6) is used to clamp a certain section of the rubber product and control the length of the rubber product's stretch.
2. The rubber tensile tester according to claim 1, characterized in that: The first fixing component (2) includes a first fixing frame (21) disposed on the frame (1), and a first clamping block (22) is rotatably connected to the first fixing frame (21). The first clamping block (22) is responsible for fixing the upper end of the rubber product.
3. The rubber tensile tester according to claim 1, characterized in that: The second fixing component (3) includes a second fixing frame (31) disposed on the frame (1), and a second clamping block (32) is rotatably connected to the second fixing frame (31). The second clamping block (32) is responsible for fixing the lower end of the rubber product.
4. A rubber tensile testing instrument according to claim 2, characterized in that: The first clamping block (22) and the second clamping block (32) are each provided with a pull rod (7) and a spring (8). The pull rod (7) is fixed to the clamping block, and the spring (8) is sleeved on the pull rod (7) to provide force to the clamping block after it is fixed.
5. A rubber tensile testing instrument according to claim 1, characterized in that: The telescopic component (4) is a telescopic motor (41) located on the top of the first fixed frame (21). The telescopic motor (41) is located inside the frame (1), and the output shaft of the telescopic motor (41) is fixed to the top of the first fixed frame (21).
6. A rubber tensile testing instrument according to claim 1, characterized in that: The clamping assembly (6) includes a first clamping plate (61) and a second clamping plate (62), a clamping space is formed between the first clamping plate (61) and the second clamping plate (62), and the first clamping plate (61) and the second clamping plate (62) are connected by a locking member (9).
7. A rubber tensile testing instrument according to claim 6, characterized in that: The locking component (9) includes a locking bolt (91) provided on the first clamping plate (61), and a locking hole provided on the second clamping plate (62). The locking bolt (91) passes through the locking hole and is fixed by a nut.
8. A rubber tensile testing instrument according to claim 1, characterized in that: A measuring plate (10) is provided on one side of the first fixing component (2) and the second fixing component (3), and the measuring plate (10) can record the location of the breakage of the rubber product.