Damping supporting device

Abstract

The utility model discloses a damping supporting device which comprises a fixed base, a lifting seat is arranged above the fixed base and connected with the fixed base through a lifting mechanism, a plurality of supporting legs distributed at equal intervals are fixedly connected to the two sides of the fixed base respectively, the bottoms of the supporting legs are fixedly connected with the ground, and the supporting legs are fixedly connected with the lifting mechanism. The supporting legs are arranged on the fixing base, the two sides of the fixing base are further respectively provided with two damping mechanisms, each damping mechanism is composed of an adjusting screw rod, an adjusting piece, a connecting plate, a damping spring and a fixing plate, the supporting legs are fixed to the installation ground through the external fixing bolts, then the fixing plates are fixed to the ground through the external fixing bolts, and therefore the supporting legs are fixed to the ground through the external fixing bolts. Under extrusion of the connecting plate and the fixing plate, the damping springs are in a compressed state, the acting force of the damping springs for resisting deformation can play a good buffering effect on vibration borne by the fixing base, and vibration of the damping springs is counteracted through the dampers.

Description

Technical Field

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

[0002] Seismic test refers to the test of using various loading equipment to simulate the actual dynamic effect on the structure, component or its model, and to measure the seismic resistance of the structure. It can evaluate the seismic level of various equipment and provide test support for the seismic research and development of equipment.

[0003] Since the seismic test machine simulates various movements during operation, it will generate very large vibrations, which will be transmitted to its base. After long-term operation, the fixed structure of its base is prone to loosening under the effect of vibration. Therefore, a shock-absorbing support device suitable for the seismic test machine is particularly important. Utility Model Content

[0004] The purpose of the utility model is to provide a shock-absorbing support device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a shock-absorbing support device, comprising a fixed base, a lifting base is arranged above the fixed base, the lifting base is connected to the fixed base through a lifting mechanism, a plurality of support feet distributed at equal intervals are fixedly connected on both sides of the fixed base, the bottom of the support feet is fixedly connected to the ground, two shock-absorbing mechanisms are also arranged on both sides of the fixed base, the shock-absorbing mechanisms are composed of an adjusting screw, an adjusting member, a connecting plate, a shock-absorbing spring and a fixing plate, the shock-absorbing spring is located at a mounting opening at the bottom of the fixed base The cam is secured to the bottom of the spring and is adapted to engage the cams and to engage with the springs in order to allow the cams to move freely in the interior of the spring.

[0006] As a further preferred embodiment of the present technical solution, a plurality of mounting holes for the seismic testing machine are provided on the upper surface of the lifting seat.

[0007] As a further preferred embodiment of the present technical solution, the supporting leg is an L-shaped structure.

[0008] As a further preferred embodiment of the present technical solution, the lifting mechanism consists of a center column, a slider, a lead screw and a motor. The center column is fixedly connected to the bottom center position of the lifting seat. The bottom outer surface of the center column is sleeved with a slider and fixedly connected to the slider. The slider is slidably installed in a slide groove opened in the fixed base. The center of the bottom of the inner cavity of the slide groove is rotatably connected with a lead screw. The upper end of the lead screw is inserted into the interior of the center column and connected to the center column by threaded fitting. The bottom center position of the fixed base is fixedly connected with a motor, and the output shaft of the motor is fixedly connected to the lead screw.

[0009] As a further preferred embodiment of the present technical solution, four guide columns are fixedly connected to the bottom of the lifting seat, and the four guide columns are distributed at four corners of the bottom of the lifting seat. The lower ends of the guide columns are slidably inserted in guide grooves provided on the upper surface of the fixed base.

[0010] As a further preferred embodiment of the present technical solution, the length of the guide column is greater than the length of the central column.

[0011] As a further preferred embodiment of the present technical solution, a reinforcing plate with a triangular structure is fixedly connected between two vertical surfaces of the supporting legs.

[0012] The utility model provides a shock-absorbing support device, which has the following beneficial effects:

[0013] The utility model fixes the supporting feet on the installation ground through external fixing bolts, and then fixes the fixing plate on the ground through external fixing bolts. Under the extrusion of the connecting plate and the fixing plate, the shock-absorbing spring is in a compressed state, and its force of resisting deformation can play a good buffering effect for the vibration received by the fixed base, and the vibration of the shock-absorbing spring itself can be offset by the damper. At the same time, the tightness of the shock-absorbing spring can be adjusted by rotating the adjusting piece. In addition, the height of the lifting seat can be controlled by the lifting mechanism, so that the height of the anti-seismic testing machine after installation can be suitable for users of different heights. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a schematic diagram of another viewing angle of the overall structure of the utility model;

[0016] Figure 3 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 4 For this utility model Figure 1 The structural diagram of A in the figure;

[0018] In the figure: 1. Fixed base; 2. Lifting seat; 3. Mounting hole; 4. Support foot; 5. Reinforcement plate; 6. Guide column; 7. Guide groove; 8. Center column; 9. Slider; 10. Slide groove; 11. Lead screw; 12. Motor; 13. Mounting groove; 14. Storage groove; 15. Adjusting screw; 16. Adjusting part; 17. Connecting plate; 18. Shock-absorbing spring; 19. Fixed plate; 20. Fixed hole; 21. Damper. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0020] The utility model provides a technical solution: Figures 1 to 4 As shown, in this embodiment, a shock-absorbing support device includes a fixed base 1, a lifting base 2 is arranged above the fixed base 1, the lifting base 2 is connected to the fixed base 1 through a lifting mechanism, a plurality of mounting holes 3 acting on the seismic testing machine are opened on the upper surface of the lifting base 2, a plurality of equally spaced support feet 4 are fixedly connected on both sides of the fixed base 1, the support feet 4 are L-shaped structures, and the bottoms of the support feet 4 are fixedly connected to the ground, and two shock-absorbing mechanisms are also arranged on both sides of the fixed base 1, the shock-absorbing mechanisms are composed of an adjusting screw 15, an adjusting member 16, a connecting plate 17, a shock-absorbing spring 18, a fixing plate 19 and a damper 21, and the shock-absorbing spring 18 is located on the fixed In the mounting groove 13 at the bottom of the base 1, the bottom of the shock-absorbing spring 18 is fixedly connected to a fixing plate 19, and fixing holes 20 are respectively opened at both ends of the upper surface of the fixing plate 19. The upper end of the shock-absorbing spring 18 is fixedly connected to a connecting plate 17, and a damper 21 is also fixedly connected between the connecting plate 17 and the fixing plate 19. The damper 21 is located inside the shock-absorbing spring 18, and the upper end of the connecting plate 17 is rotatably connected to an adjusting screw 15. The upper end of the adjusting screw 15 passes through the top wall of the mounting groove 13 and extends to the receiving groove 14 opened on the upper surface of the fixed base 1. The adjusting screw 15 is connected to the fixed base 1 by threaded cooperation, and the adjusting member 16 is fixedly installed on the top of the adjusting screw 15.

[0021] Among them, the lifting mechanism is composed of a center column 8, a slider 9, a screw 11 and a motor 12. The center column 8 is fixedly connected to the bottom center position of the lifting seat 2. The bottom outer surface of the center column 8 is sleeved with a slider 9 and fixedly connected to the slider 9. The slider 9 is slidably installed in a slide groove 10 opened in the fixed base 1. The bottom center of the inner cavity of the slide groove 10 is rotatably connected with a screw 11. The upper end of the screw 11 is inserted into the interior of the center column 8 and is connected to the center column 8 through threaded fitting. The motor 12 is fixedly connected to the bottom center position of the fixed base 1, and the output shaft of the motor 12 is fixedly connected to the screw 11.

[0022] When in use, the motor 12 is started to drive the lead screw 11 to rotate, thereby controlling the slider 9 to move up and down in the slide groove 10, thereby controlling the height of the lifting seat 2.

[0023] Among them, four guide columns 6 are fixedly connected to the bottom of the lifting seat 2, and the four guide columns 6 are distributed at the four corners of the bottom of the lifting seat 2. The lower ends of the guide columns 6 are slidably inserted in the guide grooves 7 opened on the upper surface of the fixed base 1, and the length of the guide columns 6 is greater than the length of the center column 8.

[0024] The guide column 6 can make the lifting of the lifting base 2 more stable and avoid the shaking of the lifting base 2. The length of the guide column 6 is greater than the length of the center column 8 to ensure that the guide column 6 will not slide out of the guide groove 7.

[0025] A reinforcing plate 5 with a triangular structure is fixedly connected between two vertical surfaces of the supporting foot 4 .

[0026] The reinforcement plate 5 can improve the structural strength of the support foot 4, thereby improving the stability of the device.

[0027] The utility model provides a shock-absorbing support device, and the specific working principle is as follows:

[0028] When in use, the supporting foot 4 is fixed to the installation ground by the external fixing bolts, and then the fixing plate 19 is fixed to the ground by the external fixing bolts. Under the extrusion of the connecting plate 17 and the fixing plate 19, the shock-absorbing spring 18 is in a compressed state, and its force to resist deformation can provide a good buffering effect for the vibration received by the fixed base 1. The vibration of the shock-absorbing spring 18 itself will be offset by the damper 21. At the same time, the adjusting member 16 can be rotated to drive the adjusting screw 15 to rotate, and the adjusting screw 15 can be controlled to rise and fall, thereby adjusting the height of the connecting plate 17, and then achieving the effect of adjusting the tightness of the shock-absorbing spring 18. In addition, the starting motor 12 can be used to drive the lead screw 11 to rotate, and the slider 9 can be controlled to move up and down in the slide groove 10, so as to control the height of the lifting seat 2, so that the height of the seismic test machine after installation can be suitable for users of different heights.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A shock-absorbing support device, comprising a fixed base (1), characterized in that: A lifting seat (2) is arranged above the fixed base (1), and the lifting seat (2) is connected to the fixed base (1) via a lifting mechanism. A plurality of support feet (4) distributed at equal intervals are fixedly connected on both sides of the fixed base (1), and the bottoms of the support feet (4) are fixedly connected to the ground. Two shock absorbing mechanisms are also arranged on both sides of the fixed base (1), and the shock absorbing mechanisms are composed of an adjusting screw (15), an adjusting member (16), a connecting plate (17), a shock absorbing spring (18), and a fixing plate (19). The shock absorbing spring (18) is located in a mounting groove (13) provided at the bottom of the fixed base (1), and the bottom of the shock absorbing spring (18) is fixedly connected to the fixing plate (19). The upper surface of the fixed plate (19) is provided with fixing holes (20) at both ends thereof; the upper end of the shock absorbing spring (18) is fixedly connected to a connecting plate (17); a damper (21) is fixedly connected between the connecting plate (17) and the fixed plate (19); the damper (21) is located inside the shock absorbing spring (18); the upper end of the connecting plate (17) is rotatably connected to an adjusting screw (15); the upper end of the adjusting screw (15) passes through the top wall of the mounting groove (13) and extends into a receiving groove (14) provided on the upper surface of the fixed base (1); the adjusting screw (15) and the fixed base (1) are connected by threaded engagement; and the adjusting member (16) is fixedly mounted on the top end of the adjusting screw (15).

2. A shock-absorbing support device according to claim 1, characterized in that: The upper surface of the lifting seat (2) is provided with a plurality of mounting holes (3) acting on the anti-seismic testing machine.

3. A shock-absorbing support device according to claim 1, characterized in that: The supporting foot (4) is an L-shaped structure.

4. A shock-absorbing support device according to claim 1, characterized in that: The lifting mechanism is composed of a center column (8), a slider (9), a lead screw (11) and a motor (12). The center column (8) is fixedly connected to the bottom center position of the lifting seat (2). The bottom outer surface of the center column (8) is sleeved with a slider (9) and fixedly connected to the slider (9). The slider (9) is slidably installed in a slide groove (10) opened in the fixed base (1). The center of the bottom of the inner cavity of the slide groove (10) is rotatably connected to the lead screw (11). The upper end of the lead screw (11) is inserted into the center column (8) and is connected to the center column (8) by threaded engagement. The motor (12) is fixedly connected to the bottom center position of the fixed base (1), and the output shaft of the motor (12) is fixedly connected to the lead screw (11).

5. A shock-absorbing support device according to claim 4, characterized in that: Four guide columns (6) are fixedly connected to the bottom of the lifting seat (2). The four guide columns (6) are distributed at four corners of the bottom of the lifting seat (2). The lower ends of the guide columns (6) are slidably inserted into guide grooves (7) provided on the upper surface of the fixed base (1).

6. A shock-absorbing support device according to claim 5, characterized in that: The length of the guide column (6) is greater than the length of the central column (8).

7. A shock-absorbing support device according to claim 1, characterized in that: A reinforcing plate (5) with a triangular structure is fixedly connected between the two vertical surfaces of the supporting foot (4).

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