CN220266285U

CN220266285U - Bridge anti-seismic device capable of buffering and dissipating energy

Info

Publication number: CN220266285U
Application number: CN202321781741.9U
Authority: CN
Inventors: 柳世宇; 王礼; 王申远
Original assignee: Zhengzhou University
Current assignee: Zhengzhou University
Priority date: 2023-07-07
Filing date: 2023-07-07
Publication date: 2023-12-29
Anticipated expiration: 2033-07-07

Abstract

The utility model discloses a bridge anti-seismic device capable of buffering and dissipating energy, which comprises an upper seat plate and a lower seat plate, wherein a rubber support is arranged between the upper seat plate and the lower seat plate. The bridge anti-seismic device capable of buffering and dissipating energy comprises a shock-absorbing steel plate and a rubber support, wherein the shock-absorbing steel plate and the rubber support are downwards pressed towards lateral deflection when an upper seat plate is subjected to lateral force, primary lateral force buffering and shock absorption are carried out under the action of the shock-absorbing steel plate and the rubber support, the shock-absorbing steel plate and the rubber support are twisted towards lateral direction, the upper seat plate is downwards pressed towards the deflection of a ball sleeve, a supporting rod, a damper, a buffer spring and a supporting shaft are downwards pressed towards the deflection of a ball, the bottom end of the supporting shaft is downwards pressed towards the deflection of the limiting block to enable the powerful spring to be stressed, the damper contracts and extrudes the buffer spring to shrink for secondary lateral force buffering and shock absorption when the upper seat plate is downwards pressed towards the deflection of the supporting shaft, and after external force disappears, the powerful spring releases external force to pull the limiting block to reset, and the limiting block is pulled to reset towards the supporting shaft, the buffer spring, the damper and the supporting rod.

Description

Bridge anti-seismic device capable of buffering and dissipating energy

Technical Field

The utility model relates to the technical field of bridge earthquake resistance, in particular to a bridge earthquake resistance device capable of buffering and dissipating energy.

Background

The shock-resistant support has extensive application in buildings such as house, bridge, and the shock-resistant support of present commonly used is rubber shock-resistant support, through the elastic action of rubber to reduce the horizontal vibration of bridge, also can guarantee certain vertical load simultaneously, in order to support the building of top, but traditional bridge shock-resistant support in the present market still has following problem:

traditional bridge anti-seismic support is gone on through rubber and steel sheet combination's mode, and the rubber slab can receive the huge shearing force that goes up bedplate and bedplate down produced at shock attenuation in-process, and the rubber slab produces dislocation trend easily and damages, leads to the cushioning effect of rubber slab to descend.

Disclosure of Invention

The utility model aims to provide a bridge anti-seismic device for buffering and dissipating energy, which aims to solve the problems that the rubber plate is subjected to huge shearing force generated by an upper seat plate and a lower seat plate in the shock absorption process, and the rubber plate is easy to generate dislocation trend and damage, so that the buffering effect of the rubber plate is reduced.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a bridge anti-seismic device of buffering energy dissipation, includes bedplate and lower bedplate, install rubber support between bedplate and the lower bedplate, the mounting hole has all been seted up to the surface of bedplate and lower bedplate, and the inside of mounting hole is provided with the fixed pin, the protecting crust is installed to the top surface of lower bedplate, and the top surface of protecting crust runs through and install the ball groove, the ball is installed to the internal rotation in ball groove, and the inside of ball runs through and install the back shaft, the attenuator is installed on the top of back shaft, and the outside cover of attenuator is established and is installed buffer spring, the spin is installed through the bracing piece on the top of attenuator, the ball cover is installed to the bottom surface of bedplate, and the spin rotates the inside of installing at the ball cover.

Preferably, limit rings are arranged on one side surfaces of the upper seat plate and the lower seat plate, which are close to each other, and two ends of the rubber support are respectively arranged in the two limit rings.

Preferably, a limiting block is arranged at the bottom end of the supporting shaft, and the limiting block is fixedly connected with the inner wall of the protective shell through a strong spring.

Preferably, the outer surface of the damper is fixedly connected with a positioning pipe, a positioning rod is slidably arranged in the positioning pipe, and one end, far away from the positioning pipe, of the positioning rod is fixedly connected with the outer surface of the damper.

Preferably, the outer surface of the damper is fixedly provided with a rubber telescopic pipe, and the buffer spring is positioned in the rubber telescopic pipe.

Preferably, the upper seat board and the lower seat board are fixedly connected through four shock absorption steel plates, and the four shock absorption steel plates are respectively positioned at four corners of the upper seat board and the lower seat board.

Compared with the prior art, the utility model has the beneficial effects that: the bridge anti-seismic device for buffering and dissipating energy,

1. the upper seat plate is biased to the side to press the damping steel plate and the rubber support when being stressed by the side force, the damping steel plate and the rubber support are subjected to primary side force buffering damping under the action of the damping steel plate and the rubber support, the damping steel plate and the rubber support are twisted to the side, the upper seat plate is biased to press the ball sleeve to bias and press the supporting rod, the damper, the damping spring and the supporting shaft to bias, the bottom end of the supporting shaft is biased to press the powerful spring to stress the powerful spring by the displacement of the limiting block, the damper contracts and extrudes the damping spring to shrink for secondary side force buffering damping, after the external force disappears, the powerful spring releases the external force to pull the limiting block to reset, the limiting block drives the supporting shaft, the damping spring, the damper and the supporting rod to pull the upper seat plate to reset by the self elastic force, the upper seat plate resets and the rubber support to reset, the rubber support is realized, the rubber support is laterally damped and reset, and the problem that the rubber plate is easily misplaced and damaged due to the fact that the rubber plate is damaged by huge shearing force generated by the upper seat plate and the lower seat plate in the traditional damping process is avoided;

2. realize the cushioning effect to between two lower bedplate and the bracing piece through the rubber support, extrude the shock attenuation steel sheet when going up the bedplate and receive down the power, carry out the buffering shock attenuation once under the effect of shock attenuation steel sheet, secondly go up the bedplate and push down and take ball cover, spin and bracing piece extrusion damper, the shrink of attenuator shrink extrusion buffer spring contracts and carries out the secondary buffering shock attenuation, realizes the device's a plurality of shock attenuation, reduces the pressure of rubber support, prolongs the life of rubber support.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic view of the internal structure of the rubber bellows of the present utility model;

FIG. 3 is a schematic view showing the bottom structure of the upper seat plate of the present utility model;

FIG. 4 is an enlarged schematic view of the structure of FIG. 1A according to the present utility model;

fig. 5 is a schematic perspective view of a damper according to the present utility model.

In the figure: 1. a fixing pin; 2. a mounting hole; 3. damping steel plates; 4. a lower seat plate; 5. a rubber support; 6. a limit ring; 7. a ball sleeve; 8. a support rod; 9. a positioning rod; 10. a positioning tube; 11. a rubber telescopic tube; 12. a protective shell; 13. a strong spring; 14. a limiting block; 15. a damper; 16. a buffer spring; 17. a rolling ball; 18. an upper seat plate; 19. a ball; 20. a spherical groove; 21. and a support shaft.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1, 2, 3, 4 and 5, the present utility model provides a technical solution: the bridge anti-seismic device for buffering and dissipating energy comprises an upper seat plate 18 and a lower seat plate 4, wherein a rubber support 5 is arranged between the upper seat plate 18 and the lower seat plate 4, mounting holes 2 are formed in the outer surfaces of the upper seat plate 18 and the lower seat plate 4, fixing pins 1 are arranged in the mounting holes 2, a protective shell 12 is arranged on the top surface of the lower seat plate 4, a ball groove 20 is arranged on the top surface of the protective shell 12 in a penetrating manner, a ball 19 is arranged in the ball groove 20 in a rotating manner, a supporting shaft 21 is arranged in the ball 19 in a penetrating manner, a damper 15 is arranged at the top end of the supporting shaft 21, a buffer spring 16 is sleeved outside the damper 15, a rolling ball 17 is arranged at the top end of the damper 15 through a supporting rod 8, a ball sleeve 7 is arranged on the bottom surface of the upper seat plate 18, the rolling ball 17 is rotatably arranged in the ball sleeve 7, the bottom end of the supporting shaft 21 is provided with the limiting block 14, the limiting block 14 is fixedly connected with the inner wall of the protective shell 12 through the powerful spring 13, the upper seat plate 18 and the lower seat plate 4 are fixedly connected through four shock absorption steel plates 3, the four shock absorption steel plates 3 are respectively positioned at four corners of the upper seat plate 18 and the lower seat plate 4, the shock absorption effect between the two lower seat plates 4 and the supporting rod 8 is realized through the rubber support 5, when the upper seat plate 18 is subjected to downward force, the shock absorption steel plates 3 are extruded, primary shock absorption is carried out under the action of the shock absorption steel plates 3, the upper seat plate 18 is pressed down to press the damper 15 with the ball sleeve 7, the rolling ball 17 and the supporting rod 8, the damper 15 is contracted and extruded to compress the shock absorption spring 16 for secondary shock absorption,

when the upper seat plate 18 is subjected to lateral force, the damping steel plate 3 and the rubber support 5 are pressed down in a lateral shifting manner, the damping steel plate 3 and the rubber support 5 are subjected to primary lateral force buffering and damping under the action of the damping steel plate 3 and the rubber support 5, the damping steel plate 3 and the rubber support 5 are twisted sideways, the upper seat plate 18 is pressed down in a shifting manner with the ball sleeve 7, the ball 17 is pressed down in a shifting manner with the supporting rod 8, the damper 15, the buffer spring 16 and the supporting shaft 21, the supporting shaft 21 is pressed down in a shifting manner with the bottom end of the supporting shaft 21, the powerful spring 13 is pressurized by the displacement of the limiting block 14, the damper 15 is pressed down in a shifting manner with the supporting shaft 21, the buffer spring 16 is contracted for secondary lateral force buffering and damping, after the external force is eliminated, the powerful spring 13 releases the external force to pull the limiting block 14 to reset, the damping steel plate 3 resets with the supporting shaft 21, the buffer spring 16, the damper 15 and the supporting rod 8, the upper seat plate 18 resets with the self elastic force, and the upper seat plate 18 resets with the rubber support 5.

Referring to fig. 1 and 3, a limiting ring 6 is installed on one side surface of the upper seat plate 18 and the lower seat plate 4, which are close to each other, and two ends of the rubber support 5 are respectively installed inside the two limiting rings 6, so that the limitation of the rubber support 5 is realized, and the stability of the rubber support 5 is ensured.

Referring to fig. 2, a positioning tube 10 is fixedly connected to the outer surface of the damper 15, a positioning rod 9 is slidably mounted in the positioning tube 10, and one end of the positioning rod 9 away from the positioning tube 10 is fixedly connected with the outer surface of the damper 15, so that the damper 15 is supported, and the stability of the damper 15 is ensured.

Referring to fig. 2 and 4, the rubber telescopic tube 11 is fixedly installed on the outer surface of the damper 15, and the buffer spring 16 is located inside the rubber telescopic tube 11, so that protection of the buffer spring 16 is achieved, and damage to the buffer spring 16 caused by external environmental factors is avoided.

Working principle: when the bridge anti-seismic device for buffering and dissipating energy is used, firstly, the damping effect on the two lower seat plates 4 and the supporting rods 8 is achieved through the rubber support 5, when the upper seat plate 18 is subjected to downward force, the damping steel plate 3 is extruded, primary buffering and damping are carried out under the action of the damping steel plate 3, secondly, the upper seat plate 18 is pressed down to extrude the damper 15 with the ball sleeve 7, the rolling ball 17 and the supporting rods 8, and the damper 15 is contracted to extrude the damping spring 16 to be contracted for secondary buffering and damping;

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a bridge anti-seismic device of buffering energy dissipation, includes bedplate (18) and lower bedplate (4), its characterized in that: install rubber support (5) between upper saddle (18) and lower saddle (4), mounting hole (2) have all been seted up to the surface of upper saddle (18) and lower saddle (4), and the inside of mounting hole (2) is provided with fixed pin (1), protective housing (12) are installed to the top surface of lower saddle (4), and the top surface of protective housing (12) runs through and install spherical groove (20), ball (19) are installed in the inside rotation of spherical groove (20), and the inside of ball (19) runs through and installs back shaft (21), damper (15) are installed on the top of back shaft (21), and outside cover of damper (15) is established and is installed buffer spring (16), ball (17) are installed through bracing piece (8) in the top of damper (15), ball (7) are installed to the bottom surface of upper saddle (18), and ball (17) rotate the inside of installing at ball cover (7).

2. The bridge vibration damping device for buffering and dissipating energy according to claim 1, wherein: limiting rings (6) are arranged on one side surface, close to each other, of the upper seat plate (18) and the lower seat plate (4), and two ends of the rubber support (5) are respectively arranged in the two limiting rings (6).

3. The bridge seismic apparatus of claim 2 wherein: the bottom of the supporting shaft (21) is provided with a limiting block (14), and the limiting block (14) is fixedly connected with the inner wall of the protective shell (12) through a strong spring (13).

4. A bridge seismic apparatus for buffering and dissipating energy as defined in claim 3, wherein: the outer surface fixedly connected with positioning tube (10) of attenuator (15), the inside slidable mounting of positioning tube (10) has locating lever (9), and the one end that locating lever (9) kept away from positioning tube (10) is connected with the surface fixedly of attenuator (15).

5. The bridge vibration damping device for buffering and dissipating energy according to claim 4, wherein: the outer surface of the damper (15) is fixedly provided with a rubber telescopic pipe (11), and the buffer spring (16) is positioned in the rubber telescopic pipe (11).

6. The bridge vibration damping device for buffering and dissipating energy according to claim 5, wherein: the upper seat board (18) and the lower seat board (4) are fixedly connected through four shock absorption steel plates (3), and the four shock absorption steel plates (3) are respectively positioned at four corners of the upper seat board (18) and the lower seat board (4).