Tensile test device for damping base plate

Abstract

The utility model relates to the technical field of tensile tests, and discloses a damping base plate tensile test device which comprises a double-shaft motor and a loading plate, a two-way screw rod is installed at the output end of the double-shaft motor, a bearing frame is fixed on the loading plate, a protruding block is coaxially installed on the bearing frame, a lantern ring is sleeved on the protruding block, and the lantern ring is sleeved on the bearing frame. The top end of the lantern ring is provided with an abutting rod, the abutting rod is provided with a pressing plate, the abutting rod is coaxially provided with a second compression spring, the pressing plate is connected with the bearing frame through a telescopic rod, the lantern ring is connected with the bearing frame through a plurality of first compression springs, the top end of the abutting rod is provided with a transverse frame, and one end of the transverse frame is connected with a first movable block. According to the clamping and fixing device, the pressing plate is installed on the abutting rod, the abutting rod is coaxially provided with the second compression spring, the pressing plate extrudes the second compression spring under the action of pressure, and the clamping and fixing effect on the damping base plate is improved by means of the counter-acting force of the spring.

Description

Technical Field

[0001] The utility model relates to the technical field of tensile testing, in particular to a tensile testing device for a shock-absorbing pad. Background Art

[0002] With the development of economy and cities, a large number of modern high-rise buildings such as hotels, high-end shopping malls, etc. are constantly emerging. In high-rise buildings, heating and drainage equipment, ventilation and air-conditioning equipment, elevators, etc. generate noise and vibration pollution. Therefore, effective measures must be taken to improve the sound insulation performance of the floor. The shock-absorbing pad has high efficiency in shock absorption and sound insulation. It is usually necessary to conduct a tensile test on the shock-absorbing pad before use.

[0003] According to the Chinese patent publication number "CN110618035B", a patent document entitled "A Shock-absorbing Pad Tensile Test Device" is disclosed. The device uses bolts to drive a clamping plate to fix the shock-absorbing pad. The fixing effect of a single clamping plate is poor, resulting in position displacement of the shock-absorbing pad during the stretching process, affecting the test results.

[0004] Therefore, we designed a tensile test device for shock-absorbing pads. Utility Model Content

[0005] The utility model aims to solve the problem that the fixing effect of the shock-absorbing pad in the prior art is poor, resulting in positional deviation of the shock-absorbing pad, and proposes a tensile testing device for the shock-absorbing pad.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A shock-absorbing pad tensile testing device comprises a double-axis motor and a loading plate, a bidirectional screw being installed at the output end of the double-axis motor, a load-bearing frame being fixed on the loading plate, a protrusion being coaxially installed on the load-bearing frame, a collar being sleeved on the protrusion, a support rod being installed on the top of the collar, the support rod being perpendicular to the load-bearing frame, a pressure plate being installed on the support rod, a second compression spring being coaxially arranged on the support rod, one end of the second compression spring being connected to the bottom end of the pressure plate, the other end of the second compression spring being connected to the collar, the pressure plate being connected to the load-bearing frame through a telescopic rod, the telescopic rod being perpendicular to the load-bearing frame, the collar being connected to the load-bearing frame through a plurality of first compression springs, a cross frame being installed on the top of the support rod, one end of the cross frame being connected to a first movable block, and the other end of the cross frame being connected to a second movable block.

[0008] Preferably, a first base is installed at one end of the bidirectional screw, and a second base is installed at the other end of the bidirectional screw, and the bidirectional screw is movably matched with the first base and the second base.

[0009] Preferably, the first base is connected to a first column, the second base is connected to a second column, a rectangular slot is formed on the loading plate, and the first column and the second column move in the rectangular slot.

[0010] Preferably, a first driving rod is mounted on the first column, one end of the first driving rod is connected to a first push-pull handle, and the other end of the first driving rod is connected to a first clamping block.

[0011] Preferably, a second driving rod is mounted on the second column, one end of the second driving rod is connected to a second push-pull handle, and the other end of the second driving rod is connected to a second clamping block.

[0012] Preferably, the horizontal frame is provided with a plurality of strip-shaped slots, a first balancing frame is mounted on the first movable block, a second balancing frame is mounted on the second movable block, and the first balancing frame and the second balancing frame move in the strip-shaped slots.

[0013] The beneficial effects of the utility model are:

[0014] 1. The utility model adopts a pressure plate installed on the push rod, and the push rod is coaxially provided with a second compression spring. The pressure plate squeezes the second compression spring under pressure, and relies on the reaction force of the spring to improve the clamping and fixing effect of the shock-absorbing pad.

[0015] 2. The utility model adopts a cross frame with one end connected to a first movable block, and the other end of the cross frame is connected to a second movable block. During the stretching process of the shock-absorbing pad, the first movable block and the second movable block can prevent the shock-absorbing pad from shifting in position.

[0016] In summary, the utility model is reasonably designed, which can not only improve the clamping and fixing effect of the shock-absorbing pad, but also prevent the shock-absorbing pad from being offset. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of a shock-absorbing pad tensile test device proposed by the utility model;

[0018] Figure 2 This is a front view of a tensile testing device for a shock-absorbing pad proposed by the utility model;

[0019] Figure 3 This is a cross-sectional view of the overall structure of a shock-absorbing pad tensile test device proposed by the utility model;

[0020] Figure 4 This is a partial enlarged view of area A of a shock-absorbing pad tensile test device proposed in the utility model.

[0021] In the figure: 1. dual-axis motor; 2. loading plate; 3. bidirectional screw; 4. first base; 5. second base; 6. first column; 7. second column; 8. first drive rod; 9. second drive rod; 10. first push-pull handle; 11. second push-pull handle; 12. first clamping block; 13. second clamping block; 14. load-bearing frame; 15. protrusion; 16. collar; 17. first compression spring; 18. telescopic rod; 19. push rod; 20. second compression spring; 21. pressure plate; 22. cross frame; 23. first movable block; 24. second movable block; 25. first balance frame; 26. second balance frame. DETAILED DESCRIPTION

[0022] Reference Figure 1-Figure 4 A shock-absorbing pad tensile test device comprises a dual-axis motor 1 and a loading plate 2, a load-bearing frame 14 is fixed on the loading plate 2, a convex block 15 is coaxially mounted on the load-bearing frame 14, a collar 16 is sleeved on the collar 16, a push rod 19 is mounted on the top of the collar 16, the push rod 19 is perpendicular to the load-bearing frame 14, a pressure plate 21 is mounted on the push rod 19, a second compression spring 20 is coaxially arranged on the push rod 19, one end of the second compression spring 20 is connected to the bottom end of the pressure plate 21, and the other end of the second compression spring 20 is connected to the collar 16, the pressure plate 21 is connected to the load-bearing frame 14 through a telescopic rod 18, the telescopic rod 18 is perpendicular to the load-bearing frame 14, the collar 16 is connected to the load-bearing frame 14 through a plurality of first compression springs 17, a cross frame 22 is mounted on the top of the push rod 19, one end of the cross frame 22 is connected to a first movable block 23, and the other end of the cross frame 22 is connected to a second movable block 24. By placing the shock-absorbing pad on the cross frame 22, when the shock-absorbing pad is subjected to pressure, pressure will be applied to the cross frame 22 to move the cross frame 22 downward. When the cross frame 22 moves downward, the collar 16 is driven to move on the protrusion 15 through the push rod 19. At the same time, the pressure plate 21 will compress the second compression spring 20 when it moves downward. The second compression spring 20 is subjected to pressure from the pressure plate 21, and a reaction force is applied to the pressure plate 21 during the compression process. During the movement, the push rod 19 applies pressure to the first compression spring 17 through the collar 16. The first compression spring 17 is also subjected to pressure compression, and a reaction force is applied to the collar 16. Through the reaction forces of the first compression spring 17 and the second compression spring 20, the cross frame 22 is fully fitted with the shock-absorbing pad, providing a clamping and fixing effect of the device on the shock-absorbing pad.

[0023] A first driving rod 8 is installed on the first column 6, one end of the first driving rod 8 is connected to a first push-pull handle 10, and the other end of the first driving rod 8 is connected to a first clamping block 12. A second driving rod 9 is installed on the second column 7, one end of the second driving rod 9 is connected to a second push-pull handle 11, and the other end of the second driving rod 9 is connected to a second clamping block 13. The first driving rod 8 and the second driving rod 9 are moved vertically on the first column 6 and the second column 7 by manually operating the first push-pull handle 10 and the second push-pull handle 11. During the movement, the first driving rod 8 and the second driving rod 9 drive the first clamping block 12 and the second clamping block 13 to move synchronously until the first clamping block 12 and the second clamping block 13 are fully fitted with the shock-absorbing pad, and the shock-absorbing pad is effectively fixed by the pressure of the first clamping block 12 and the second clamping block 13 and the reaction force of the first compression spring 17 and the second compression spring 20.

[0024] A bidirectional screw 3 is installed at the output end of the double-axis motor 1, a first base 4 is installed at one end of the bidirectional screw 3, a second base 5 is installed at the other end of the bidirectional screw 3, the bidirectional screw 3 is movably matched with the first base 4 and the second base 5, the first base 4 is connected to the first column 6, the second base 5 is connected to the second column 7, a rectangular notch is provided on the loading plate 2, the first column 6 and the second column 7 move in the rectangular notch, a plurality of strip notches are provided on the cross frame 22, a first balancing frame 25 is installed on the first movable block 23, a second balancing frame 26 is installed on the second movable block 24, the first balancing frame 25 and the second balancing frame 26 move in the strip notches, after completing the clamping and fixing of the shock-absorbing pad, the double-axis motor 1 is driven to rotate the bidirectional screw 3, and the bidirectional The rotation of the screw 3 causes the first movable block 23 and the second movable block 24 to move in the opposite direction. During the reverse movement, the first movable block 23 and the second movable block 24 drive the first column 6 and the second column 7 to move in the opposite direction synchronously in the rectangular groove on the loading plate 2, so that the first clamping block 12 and the second clamping block 13 move in the opposite direction while clamping and fixing the shock-absorbing pad. During the reverse movement of the first clamping block 12 and the second clamping block 13, since the shock-absorbing pad is fully fitted with the first movable block 23 and the second movable block 24, when the first clamping block 12 and the second clamping block 13 stretch the shock-absorbing pad, the first movable block 23 and the second movable block 24 also slide in the opposite direction on the cross frame 22, thereby performing a tensile test on the shock-absorbing pad.

[0025] The working principle of the utility model is as follows: a bidirectional screw 3 is installed at the output end of the double-axis motor 1, a load-bearing frame 14 is fixed on the loading plate 2, a convex block 15 is coaxially installed on the load-bearing frame 14, a collar 16 is sleeved on the convex block 15, a push rod 19 is installed on the top of the collar 16, the push rod 19 is perpendicular to the load-bearing frame 14, a pressure plate 21 is installed on the push rod 19, a second compression spring 20 is coaxially arranged on the push rod 19, one end of the second compression spring 20 is connected to the bottom end of the pressure plate 21, and the other end of the second compression spring 20 is connected to the collar 16. 21 is connected to the load-bearing frame 14 through a telescopic rod 18, the telescopic rod 18 is perpendicular to the load-bearing frame 14, the collar 16 is connected to the load-bearing frame 14 through multiple first compression springs 17, a cross frame 22 is installed on the top of the support rod 19, one end of the cross frame 22 is connected to a first movable block 23, and the other end of the cross frame 22 is connected to a second movable block 24. The reaction force of the first compression spring 17 and the second compression spring 20 is used to improve the fixing effect of the shock-absorbing pad, and the first movable block 23 and the second movable block 24 can effectively prevent the shock-absorbing pad from shifting in position.

[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A shock-absorbing pad tensile test device, comprising a dual-axis motor (1) and a loading plate (2), characterized in that: The output end of the dual-axis motor (1) is provided with a bidirectional screw rod (3), a load-bearing frame (14) is fixed on the loading plate (2), a convex block (15) is coaxially provided on the load-bearing frame (14), a collar (16) is sleeved on the convex block (15), a support rod (19) is provided on the top of the collar (16), the support rod (19) is perpendicular to the load-bearing frame (14), a pressure plate (21) is provided on the support rod (19), a second compression spring (20) is coaxially provided on the support rod (19), one end of the second compression spring (20) is connected to the support rod (19), and a second compression spring (20) is coaxially provided on the support rod (19). The bottom end of the pressure plate (21) is connected, and the other end of the second compression spring (20) is connected to the collar (16). The pressure plate (21) is connected to the load-bearing frame (14) through a telescopic rod (18). The telescopic rod (18) is perpendicular to the load-bearing frame (14). The collar (16) is connected to the load-bearing frame (14) through a plurality of first compression springs (17). A cross frame (22) is installed at the top end of the support rod (19). One end of the cross frame (22) is connected to a first movable block (23), and the other end of the cross frame (22) is connected to a second movable block (24).

2. A shock-absorbing pad tensile test device according to claim 1, characterized in that: A first base (4) is installed at one end of the bidirectional screw (3), and a second base (5) is installed at the other end of the bidirectional screw (3). The bidirectional screw (3) is movably matched with the first base (4) and the second base (5).

3. A shock-absorbing pad tensile test device according to claim 2, characterized in that: The first base (4) is connected to a first column (6), the second base (5) is connected to a second column (7), a rectangular slot is provided on the loading plate (2), and the first column (6) and the second column (7) are movable in the rectangular slot.

4. A shock-absorbing pad tensile test device according to claim 3, characterized in that: A first driving rod (8) is installed on the first column (6), one end of the first driving rod (8) is connected to a first push-pull handle (10), and the other end of the first driving rod (8) is connected to a first clamping block (12).

5. A shock-absorbing pad tensile testing device according to claim 3, characterized in that: A second driving rod (9) is mounted on the second column (7), one end of the second driving rod (9) is connected to a second push-pull handle (11), and the other end of the second driving rod (9) is connected to a second clamping block (13).

6. A shock-absorbing pad tensile test device according to claim 1, characterized in that: The cross frame (22) is provided with a plurality of strip-shaped slots, the first movable block (23) is provided with a first balancing frame (25), the second movable block (24) is provided with a second balancing frame (26), and the first balancing frame (25) and the second balancing frame (26) are movable in the strip-shaped slots.

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