Rubber band tensile strength detection equipment
By introducing a sliding frame and a strong magnetic strip structure into the rubber band tensile strength testing equipment, the problem of the bar box force gauge shaking caused by the user's unstable hand was solved, thus achieving accurate test data and convenient disassembly and maintenance of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YIWU BOPAI PLASTIC PROD CO LTD
- Filing Date
- 2025-05-22
- Publication Date
- 2026-05-01
AI Technical Summary
Existing rubber band tensile strength testing equipment is prone to shaking of the bar box force gauge during use due to the user's unsteady hand, resulting in experimental errors and inaccurate data.
A device for testing the tensile strength of rubber bands was designed. It adopts a sliding frame and a strong magnetic strip structure. The stability of the bar box force gauge is controlled by the sliding frame to prevent shaking, and the bar box force gauge is fixed by the strong magnetic strip to record accurate data. It is also easy to disassemble and maintain.
It effectively prevents experimental errors caused by the user's unsteady hand, ensures the accuracy of the test data, and simplifies the disassembly and maintenance process of the equipment.
Smart Images
Figure CN224189746U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rubber band tensile strength testing technology, and in particular to a device for testing the tensile strength of rubber bands. Background Technology
[0002] Rubber bands are very common in our daily lives and are in high demand. However, the tensile strength required for rubber bands used in different fields is also different. Therefore, in industrial production, the tensile strength of rubber bands is usually sampled and checked in the same batch of products.
[0003] Existing tests for the tensile strength of rubber bands generally require the use of a bar box force gauge. However, when the user pulls the bar box force gauge and stretches the rubber band to a certain length, the user's hand may be unsteady, causing the bar box force gauge to wobble from side to side, resulting in experimental errors and inaccurate final experimental data. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a device for testing the tensile strength of rubber bands.
[0005] To achieve the above objectives, this utility model adopts the following technical solution: a rubber band tensile strength testing device, comprising a testing platform, a rubber band placement frame fixedly connected to the top left of the testing platform, a concave ring fixedly connected to the middle of the left end of the rubber band placement frame, a strip box force gauge arranged on the top of the testing platform near the rubber band placement frame, a paperclip fixedly connected to the middle of the right end of the strip box force gauge, an installation block fixedly connected to the lower side of the middle of the front end of the strip box force gauge, a sliding frame arranged in the middle of the front end of the strip box force gauge, an installation groove arranged at the bottom of the rear end of the sliding frame, telescopic blocks slidably connected to the left and right sides of the top of the installation groove on the inner wall of the sliding frame, a second spring fixedly connected to the middle of one outer end of each telescopic block, a base plate slidably connected to the middle of the inner wall of the front end of the sliding frame, a connecting rod fixedly connected to the bottom end of the base plate, a metal plate fixedly connected to the bottom end of the connecting rod, a sliding baffle fixedly connected to the front side of the top of the base plate, and a strong magnetic strip fixedly connected to the left side of the front part of the inner wall of the top of the testing platform corresponding to the bottom end of the sliding frame.
[0006] As a further description of the above technical solution:
[0007] A rubber buffer block is fixedly connected to the rear left end of the rubber band placement frame.
[0008] As a further description of the above technical solution:
[0009] A scale is provided on the left side of the rear top of the testing platform.
[0010] As a further description of the above technical solution:
[0011] The outer end of the second spring is fixedly connected to the inner wall of the sliding frame, and the bottom of the outer end of the telescopic block is fixedly connected to a pull rod, which is slidably connected to the through hole on the outer wall of the sliding frame.
[0012] As a further description of the above technical solution:
[0013] A sliding block is slidably connected to the top of the front end of the sliding frame, and a sliding baffle is slidably connected to the through hole on the top inner wall of the front end of the sliding frame. A socket is provided in the middle of the front end of the sliding baffle, and the size of the sliding block is adapted to the socket.
[0014] As a further description of the above technical solution:
[0015] A first spring is fixedly connected to the top center of the base plate, and the first spring is fixedly connected to the top of the inner wall of the sliding frame.
[0016] As a further description of the above technical solution:
[0017] The bottom rear side of the sliding frame is slidably connected to the top of the testing platform.
[0018] As a further description of the above technical solution:
[0019] The size of the mounting block is adapted to the mounting slot.
[0020] This utility model has the following beneficial effects:
[0021] 1. In this utility model, by first setting a sliding frame and a strong magnetic strip, the user can stop the bar box force gauge steadily before recording data, so as to prevent the bar box force gauge from swaying left and right due to the user's unsteady hand, which would cause experimental errors and result in inaccurate final experimental data.
[0022] 2. In this utility model, by setting a telescopic block and a pull rod, the bar box force gauge is easy to install and disassemble on the testing platform, and it is convenient to remove the bar box force gauge for maintenance and zeroing work. Attached Figure Description
[0023] Figure 1 This is a perspective view of a rubber band tensile strength testing device proposed in this utility model;
[0024] Figure 2 for Figure 1 Enlarged view of point A in the middle;
[0025] Figure 3 This is a schematic diagram of the bar box force gauge structure of a rubber band tensile strength testing device proposed in this utility model;
[0026] Figure 4This is a cross-sectional view of the sliding frame of a rubber band tensile strength testing device proposed in this utility model;
[0027] Figure 5 This is a schematic diagram of the metal plate structure of a rubber band tensile strength testing device proposed in this utility model.
[0028] Legend:
[0029] 1. Testing platform; 2. Scale mark; 3. Bar box force gauge; 4. Paperclip; 5. Rubber buffer block; 6. Concave ring; 7. Rubber band holder; 8. Strong magnet strip; 9. Sliding frame; 10. Pull rod; 11. Metal plate; 12. Connecting rod; 13. Sliding baffle; 14. Insertion hole; 15. Sliding insert block; 16. Mounting block; 17. First spring; 18. Second spring; 19. Telescopic block; 20. Mounting groove; 21. Base plate. Detailed Implementation
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0031] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are 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, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0032] Reference Figure 1-5This utility model provides an embodiment of a rubber band tensile strength testing device, comprising a testing platform 1, a rubber band placement frame 7 fixedly connected to the top left side of the testing platform 1, a concave ring 6 fixedly connected to the middle of the left end of the rubber band placement frame 7, a strip box force gauge 3 disposed on the top side of the testing platform 1 near the rubber band placement frame 7, a paperclip 4 fixedly connected to the middle of the right end of the strip box force gauge 3, an installation block 16 fixedly connected to the lower side of the middle of the front end of the strip box force gauge 3, a sliding frame 9 disposed at the middle of the front end of the strip box force gauge 3, an installation groove 20 disposed at the bottom of the rear end of the sliding frame 9, and telescopic blocks 19 slidably connected to the left and right sides of the top end of the inner wall of the sliding frame 9 corresponding to the installation groove 20. A second spring 18 is fixedly connected to the middle of one end of the outer side of the sliding frame 9. A base plate 21 is slidably connected to the middle of the inner wall of the front end of the sliding frame 9. A connecting rod 12 is fixedly connected to the bottom end of the base plate 21. A metal plate 11 is fixedly connected to the bottom end of the connecting rod 12. A sliding baffle 13 is fixedly connected to the front side of the top of the base plate 21. A strong magnet strip 8 is fixedly connected to the left side of the front part of the inner wall of the top of the testing platform 1, corresponding to the bottom end of the sliding frame 9. First, at the beginning of the experiment, the bar box force gauge 3 is zeroed. Then, the mounting block 16 of the bar box force gauge 3 is slid to the bottom of the mounting groove 20 at the rear end of the sliding frame 9 by squeezing the telescopic block 19. When the mounting block 16 is completely slid to the bottom of the mounting groove 20... After the top telescopic block 19 slides out of the inner wall of the sliding frame 9 under the action of the second spring 18, thus blocking the upward exit of the mounting block 16. Because the mounting block 16 is a T-shaped block, the mounting groove 20 is also a T-shaped groove of the same size as the mounting block 16, so that the strip box force gauge 3 is installed at the rear end of the sliding frame 9, so that the user can control the strip box force gauge 3 by pulling it through the sliding frame 9. Then, the rubber band is slid to the position of the concave ring 6 through the rubber band placement frame 7, and then the rubber band and the strip box force gauge 3 are connected by the paperclip 4. When the strip box force gauge 3 is pulled to the corresponding pulling force value, the sliding insert 15 is moved out of the insertion hole 14 of the sliding baffle 13, so that... The base plate 21 slides down the inner wall of the sliding frame 9 under the action of the first spring 17. Then, the bottom metal plate 11 is connected to the strong magnet strip 8 on the detection table 1, so that the sliding frame 9 and the bar box force gauge 3 stop, thereby stably recording the scale value at the corresponding tension value. Then, it is recorded multiple times in sequence to prevent the bar box force gauge 3 from shaking left and right due to the user's unsteady hand, which would cause experimental errors and lead to inaccurate final experimental data. When disassembling the bar box force gauge 3, it is only necessary to pull the telescopic block 19 into the inner wall on both sides of the sliding frame 9 through the pull rod 10 to remove the mounting block 16 from the mounting slot 20, thereby quickly removing the bar box force gauge 3 for zeroing or maintenance.
[0033] A rubber buffer block 5 is fixedly connected to the rear left side of the rubber band placement frame 7. The rubber buffer block 5 can prevent the rubber band from breaking due to excessive tension, which would cause the strip box force gauge 3 to be damaged by inertia hitting the rubber band placement frame 7. A scale mark 2 is set on the left side of the rear top of the test platform 1. The scale mark 2 is used to record the stretching length of the rubber band at the corresponding tension value, which is convenient for calculating experimental data. One end of the second spring 18 is fixedly connected to the inner wall of the sliding frame 9. One end of the telescopic block 19 is fixedly connected to the bottom of the outer side of the sliding block 19. The pull rod 10 is slidably connected to the through hole on the outer wall of the sliding frame 9. The pull rod 10 makes it easy to pull the telescopic block 19 to quickly remove the mounting block 16 from the mounting groove 20. A sliding block 15 is slidably connected to the top of the front end of the sliding frame 9. A sliding baffle 13 is slidably connected to the through hole on the inner wall of the top of the front end of the sliding frame 9. A hole 14 is provided in the middle of the front end of the sliding baffle 13. The size of the sliding block 15 is adapted to the hole 14. The sliding block 15 facilitates the metal plate 11 and the strong magnet strip 8 to be pulled apart at a sufficient distance when the sliding frame 9 slides to prevent affecting the normal sliding of the sliding frame 9. A first spring 17 is fixedly connected to the middle of the top of the bottom plate 21. The first spring 17 is fixedly connected to the top of the inner wall of the sliding frame 9. The first spring 17 facilitates the reset of the bottom plate 21. The rear side of the bottom end of the sliding frame 9 is slidably connected to the top of the detection table 1. The size of the mounting block 16 is adapted to the mounting groove 20.
[0034] Working principle: First, at the start of the experiment, the bar box force gauge 3 is zeroed. Then, the mounting block 16 of the bar box force gauge 3 is slid to the bottom of the mounting groove 20 at the rear end of the sliding frame 9 by pressing the telescopic block 19. When the mounting block 16 has completely slid to the bottom of the mounting groove 20, the top telescopic block 19 will slide out of the inner wall of the sliding frame 9 under the action of the second spring 18, thus blocking the upward passage of the mounting block 16. Because the mounting block 16 is a T-shaped block, the mounting groove 20 is also a T-shaped groove of the same size as the mounting block 16, thus installing the bar box force gauge 3 at the rear end of the sliding frame 9. This allows the user to control the bar box force gauge 3 by pulling it through the sliding frame 9. Then, the rubber band is slid to the concave ring 6 position through the rubber band placement frame 7, and then the rubber band and the bar box force gauge 3 are connected by the paperclip 4. When the bar box force gauge 3 is pulled to the corresponding pulling force value, the sliding block 15 moves out of the insertion hole 14 of the sliding baffle 13, so that the base plate 21 slides down the inner wall of the sliding frame 9 under the action of the first spring 17. Then the bottom metal plate 11 is connected to the strong magnet strip 8 on the detection table 1, so that the sliding frame 9 and the bar box force gauge 3 stop, thereby stably recording the scale value at the corresponding pulling force value. Then, the values are recorded multiple times in sequence, so as to prevent the bar box force gauge 3 from shaking left and right due to the user's unsteady hand, causing experimental errors and inaccurate final experimental data. When disassembling the bar box force gauge 3, it is only necessary to pull the telescopic block 19 into the inner wall of both sides of the sliding frame 9 through the pull rod 10 to remove the mounting block 16 from the mounting slot 20, thereby quickly removing the bar box force gauge 3 for zeroing or maintenance.
[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A device for testing the tensile strength of rubber bands, comprising a testing table (1), characterized in that: A rubber band holder (7) is fixedly connected to the top left of the testing platform (1). A concave ring (6) is fixedly connected to the middle of the left end of the rubber band holder (7). A strip box force gauge (3) is set on the top of the testing platform (1) near the rubber band holder (7). A paperclip (4) is fixedly connected to the middle of the right end of the strip box force gauge (3). An installation block (16) is fixedly connected to the lower side of the middle of the front end of the strip box force gauge (3). A sliding frame (9) is set in the middle of the front end of the strip box force gauge (3). An installation groove (20) is set at the bottom of the rear end of the sliding frame (9). The inner wall of the sliding frame (9) Telescopic blocks (19) are slidably connected to the top left and right sides of the corresponding mounting slot (20). A second spring (18) is fixedly connected to the middle of the outer end of each telescopic block (19). A base plate (21) is slidably connected to the middle of the inner wall of the front end of the sliding frame (9). A connecting rod (12) is fixedly connected to the bottom end of the base plate (21). A metal plate (11) is fixedly connected to the bottom end of the connecting rod (12). A sliding baffle (13) is fixedly connected to the front side of the top end of the base plate (21). A strong magnet strip (8) is fixedly connected to the left side of the front part of the inner wall of the top end of the detection table (1) at the position corresponding to the bottom end of the sliding frame (9).
2. The elastic band tensile strength testing device according to claim 1, characterized in that: A rubber buffer block (5) is fixedly connected to the rear left end of the rubber band placement frame (7).
3. The elastic band tensile strength testing device according to claim 1, characterized in that: The detection platform (1) has a scale mark (2) on the left side of the rear top.
4. The elastic band tensile strength testing device according to claim 1, characterized in that: The outer end of the second spring (18) is fixedly connected to the inner wall of the sliding frame (9), and the bottom of the outer end of the telescopic block (19) is fixedly connected to a pull rod (10). The pull rod (10) is slidably connected to the through hole on the outer wall of the sliding frame (9).
5. The elastic band tensile strength testing device according to claim 1, characterized in that: The sliding frame (9) is slidably connected to the top of the front end of the sliding frame (9) with a sliding plug (15) and the sliding baffle (13) is slidably connected to the through hole on the top of the front end of the sliding frame (9). The sliding baffle (13) has a socket (14) in the middle of the front end. The size of the sliding plug (15) is adapted to the socket (14).
6. The elastic band tensile strength testing device according to claim 1, characterized in that: A first spring (17) is fixedly connected to the top center of the bottom plate (21), and the first spring (17) is fixedly connected to the top of the inner wall of the sliding frame (9).
7. The elastic band tensile strength testing device according to claim 1, characterized in that: The sliding frame (9) is slidably connected to the top of the testing table (1) at the rear of its bottom end.
8. The elastic band tensile strength testing device according to claim 1, characterized in that: The size of the mounting block (16) is adapted to the mounting slot (20).