Adjustable subway viaduct shock-absorbing support

Abstract

The utility model discloses an adjustable subway viaduct shock absorption support, including lower support board and upper support board, the upper support board sets up at the top of lower support board, the bottom of upper support board is slidably connected with T type board through setting opening, both sides of lower support board top all are fixedly installed with the sleeve, the bottom of sleeve inner chamber is welded with first slide, the top of first slide is welded with first damper rod, the utility model discloses a sleeve and the swivel rod are set to make the upper support board when being subjected to the vibration can drive second damper rod to descend, and second damper rod descending drives T type board to descend, and T type board descending drives first damper rod to descend, and first damper rod descending can compress first slide, and second damper rod descending can compress third spring, and T type board descending can make two swivels overturn simultaneously, and swivel overturn can stretch second spring, and further reach the effect of multistage buffering of the force produced by the vibration.

Description

Technical Field

[0001] This utility model relates to the field of vibration damping bearings for subway viaducts, specifically an adjustable vibration damping bearing for subway viaducts. Background Technology

[0002] With the rapid development of urban rail transit, the safety and stability of subway viaducts, as an important component of subway lines, have received widespread attention. During subway operation, the vibration of the train is transmitted to the viaduct through the tracks. Long-term vibration can not only damage the viaduct structure and shorten its service life, but also affect passenger comfort and may even have adverse effects on the surrounding environment.

[0003] Most commercially available vibration damping bearings for subway viaducts employ a single damping method. When faced with complex and varied train operating conditions, such as heavy-load train traffic and frequent train starts and stops, the single damping structure is insufficient to effectively dissipate vibration energy, resulting in a significant reduction in the buffering and damping effect. Furthermore, the damping parameters of most subway viaduct vibration damping bearings are fixed and cannot be flexibly adjusted according to actual train operating loads, viaduct structural characteristics, and different geological conditions, making it difficult to meet the high-efficiency damping requirements under complex operating conditions. Therefore, it is necessary to design an adjustable subway viaduct vibration damping bearing to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide an adjustable vibration damping support for subway viaducts to solve the problems mentioned in the background.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an adjustable vibration damping bearing for subway viaducts, comprising a lower bearing plate and an upper bearing plate, wherein the upper bearing plate is disposed above the lower bearing plate, and a T-shaped plate is slidably connected to the bottom of the upper bearing plate through an opening; sleeves are fixedly installed on both sides of the top of the lower bearing plate, a first sliding rod is welded to the bottom of the inner cavity of the sleeve, a first damping rod is welded to the top of the first sliding rod, and the top of the first damping rod is fixedly connected to the bottom of the T-shaped plate;

[0006] The top of the lower support plate is provided with a sliding groove, and damping sliders are slidably connected to the front and rear sides of the sliding groove. The top of the damping slider is rotatably connected to a rotating rod through a rotating component. The top of the rotating rod is rotatably connected to the bottom of the T-shaped plate through a rotating component. A second spring is welded between the two rotating rods.

[0007] Preferably, square tubes are fixedly installed on both sides of the top of the lower support plate, a third spring is welded to the bottom of the inner cavity of the square tube, a second damping rod is welded to the top of the third spring, the top of the second damping rod passes through the T-shaped plate and extends to the outside of the T-shaped plate, and the top of the second damping rod is fixedly connected to the bottom of the upper support plate.

[0008] Preferably, the top of the lower support plate is rotatably connected to a threaded cylinder via a bearing component, and the threaded cylinder is internally threaded with a threaded rod, the top end of which is fixedly connected to the bottom of the T-shaped plate.

[0009] Preferably, a handle is fixedly mounted on the surface of the threaded cylinder.

[0010] Preferably, the bottom of the T-shaped plate has movable grooves on both sides for use with the second damping rod, and the surface of the T-shaped plate is made of rubber and is interference-fitted with the inner wall of the movable groove.

[0011] Preferably, the surface of the first damping rod is made of rubber and has an interference fit with the inner wall of the sleeve.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This adjustable subway viaduct vibration damping bearing, by setting a sleeve and a rotating rod, allows the upper support plate to drive the second damping rod to descend when subjected to vibration. The descent of the second damping rod drives the T-shaped plate to descend, and the descent of the T-shaped plate drives the first damping rod to descend. The descent of the first damping rod can compress the first sliding rod, and the descent of the second damping rod can compress the third spring. At the same time, the descent of the T-shaped plate can cause the two rotating rods to flip. The flipping of the rotating rods can stretch the second spring, thereby achieving a multi-stage buffering effect against the force generated by vibration.

[0014] 2. This adjustable subway viaduct vibration damping bearing, by rotating the handle, drives the threaded cylinder to rotate, the threaded cylinder to rotate, the threaded rod to descend, the threaded rod to descend, the T-plate to descend, the T-plate to descend, the first damping rod to descend, and the rotating rod to flip. The flipping of the rotating rod and the descent of the first damping rod can adjust the compression degree of the elastic body, thereby achieving the effect of adjusting the vibration damping stiffness. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the lower support plate, sleeve, and square tube structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the damping slider, rotating rod, and movable groove structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the first slide bar, damping slider, and third spring structure of this utility model.

[0019] In the diagram: 1. Lower support plate; 2. Upper support plate; 3. T-shaped plate; 4. Sleeve; 5. First sliding rod; 6. First damping rod; 7. Slide groove; 8. Damping slider; 9. Rotating rod; 10. Second spring; 11. Square cylinder; 12. Third spring; 13. Second damping rod; 14. Movable groove; 15. Threaded cylinder; 16. Threaded rod; 17. Handle. Detailed Implementation

[0020] 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.

[0021] Example 1

[0022] Please refer to Figure 1-4 As shown, this utility model provides an adjustable vibration damping support for subway viaducts, including a lower support plate 1 and an upper support plate 2. The upper support plate 2 is disposed above the lower support plate 1. A T-shaped plate 3 is slidably connected to the bottom of the upper support plate 2 through an opening. Sleeves 4 are fixedly installed on both sides of the top of the lower support plate 1. A first sliding rod 5 is welded to the bottom of the inner cavity of the sleeve 4. A first damping rod 6 is welded to the top of the first sliding rod 5. The top of the first damping rod 6 is fixedly connected to the bottom of the T-shaped plate 3.

[0023] Specifically, a groove 7 is provided on the top of the lower support plate 1. Damping sliders 8 are slidably connected to the front and rear sides of the groove 7. The surface of the damping sliders 8 is made of rubber and is interference-fitted with the inner wall of the groove 7. A rotating rod 9 is rotatably connected to the top of the damping slider 8 via a rotating component. The top of the rotating rod 9 is rotatably connected to the bottom of the T-shaped plate 3 via a rotating component. A second spring 10 is welded between the two rotating rods 9. Square cylinders 11 are fixedly installed on both sides of the top of the lower support plate 1. A third spring 12 is welded to the bottom of the inner cavity of the square cylinder 11. A second damping rod 13 is welded to the top of the third spring 12. The top of the second damping rod 13 penetrates the T-shaped plate 3 and extends to the outside of the T-shaped plate 3. The top of the second damping rod 13 is fixedly connected to the bottom of the upper support plate 2. The two bottom sides of the T-shaped plate 3... Each side is provided with a movable groove 14 that cooperates with the second damping rod 13. The surface of the T-shaped plate 3 is made of rubber and is interference-fitted with the inner wall of the movable groove 14. The surface of the first damping rod 6 is made of rubber and is interference-fitted with the inner wall of the sleeve 4. By setting the sleeve 4 and the rotating rod 9, the upper support plate 2 can drive the second damping rod 13 to descend when it is vibrated. The descent of the second damping rod 13 drives the T-shaped plate 3 to descend, and the descent of the T-shaped plate 3 drives the first damping rod 6 to descend. The descent of the first damping rod 6 can compress the first sliding rod 5, and the descent of the second damping rod 13 can compress the third spring 12. At the same time, the descent of the T-shaped plate 3 can cause the two rotating rods 9 to flip. The flipping of the rotating rods 9 can stretch the second spring 10, thereby achieving a multi-stage buffering effect on the force generated by vibration.

[0024] Specifically, a threaded cylinder 15 is rotatably connected to the top of the lower support plate 1 via a bearing. A threaded rod 16 is threadedly connected inside the threaded cylinder 15. The top end of the threaded rod 16 is fixedly connected to the bottom of the T-shaped plate 3. A handle 17 is fixedly installed on the surface of the threaded cylinder 15. By setting the threaded cylinder 15 and rotating the handle 17, the handle 17 rotates, causing the threaded cylinder 15 to rotate. The rotation of the threaded cylinder 15 causes the threaded rod 16 to descend. The descent of the threaded rod 16 causes the T-shaped plate 3 to descend. The descent of the T-shaped plate 3 causes the first damping rod 6 to descend and causes the rotating rod 9 to flip. The flipping of the rotating rod 9 and the descent of the first damping rod 6 can adjust the compression degree of the elastic body and achieve the effect of adjusting the damping stiffness.

[0025] Working Principle: This utility model is an adjustable vibration damping support for subway viaducts. By setting up a sleeve 4 and a rotating rod 9, when the upper support plate 2 is subjected to vibration, it can drive the second damping rod 13 to descend. The descent of the second damping rod 13 drives the T-shaped plate 3 to descend, which in turn drives the first damping rod 6 to descend. The descent of the first damping rod 6 can compress the first sliding rod 5, and the descent of the second damping rod 13 can compress the third spring 12. At the same time, the descent of the T-shaped plate 3 can cause the two rotating rods 9 to flip. The flipping of the rotating rods 9 can stretch the second spring 10, thereby achieving a multi-stage buffering effect on the force generated by vibration. When it is necessary to adjust the vibration damping stiffness, the handle 17 can be rotated. The rotation of the handle 17 drives the threaded cylinder 15 to rotate, which drives the threaded rod 16 to descend. The descent of the threaded rod 16 drives the T-shaped plate 3 to descend, which in turn drives the first damping rod 6 to descend and causes the rotating rod 9 to flip. The flipping of the rotating rod 9 and the descent of the first damping rod 6 can adjust the compression degree of the elastic body, thereby achieving the effect of adjusting the vibration damping stiffness.

[0026] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0027] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. An adjustable vibration damping bearing for subway viaducts, comprising a lower bearing plate (1) and an upper bearing plate (2), characterized in that: The upper support plate (2) is positioned above the lower support plate (1). The bottom of the upper support plate (2) is slidably connected to a T-shaped plate (3) through an opening. Sleeves (4) are fixedly installed on both sides of the top of the lower support plate (1). A first sliding rod (5) is welded to the bottom of the inner cavity of the sleeve (4). A first damping rod (6) is welded to the top of the first sliding rod (5). The top of the first damping rod (6) is fixedly connected to the bottom of the T-shaped plate (3). The top of the lower support plate (1) is provided with a sliding groove (7). The front and rear sides of the sliding groove (7) are slidably connected to a damping slider (8). The top of the damping slider (8) is rotatably connected to a rotating rod (9) through a rotating component. The top of the rotating rod (9) is rotatably connected to the bottom of the T-shaped plate (3) through a rotating component. A second spring (10) is welded between the two rotating rods (9).

2. The adjustable vibration damping bearing for subway viaducts according to claim 1, characterized in that: Square tubes (11) are fixedly installed on both sides of the top of the lower support plate (1). A third spring (12) is welded to the bottom of the inner cavity of the square tube (11). A second damping rod (13) is welded to the top of the third spring (12). The top of the second damping rod (13) passes through the T-shaped plate (3) and extends to the outside of the T-shaped plate (3). The top of the second damping rod (13) is fixedly connected to the bottom of the upper support plate (2).

3. The adjustable vibration damping bearing for subway viaducts according to claim 1, characterized in that: The top of the lower support plate (1) is rotatably connected to a threaded cylinder (15) via a bearing component. The threaded cylinder (15) is internally threaded with a threaded rod (16), and the top end of the threaded rod (16) is fixedly connected to the bottom of the T-shaped plate (3).

4. An adjustable vibration damping bearing for subway viaducts according to claim 3, characterized in that: A handle (17) is fixedly mounted on the surface of the threaded cylinder (15).

5. An adjustable vibration damping bearing for subway viaducts according to claim 2, characterized in that: The bottom of the T-shaped plate (3) is provided with movable grooves (14) on both sides for use with the second damping rod (13). The surface of the T-shaped plate (3) is made of rubber and is interference-fitted with the inner wall of the movable groove (14).

6. The adjustable vibration damping bearing for subway viaducts according to claim 1, characterized in that: The surface of the first damping rod (6) is made of rubber and is interference-fitted with the inner wall of the sleeve (4).

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