Novel bridge support shock absorption and isolation device

Abstract

The utility model relates to the technical field of shock isolation devices, in particular to a novel bridge support shock absorption and isolation device which comprises two horizontally-arranged connecting steel plates, the two connecting steel plates correspond to each other up and down, and sealing plates are fixedly installed on the inner sides of the two connecting steel plates through bolts. The rubber protective belt has the advantages that the two flange rings are installed on the two connecting steel plates through the bolts respectively, the two rubber protective belts can be isolated from outside air through the rubber corrugated pipes, the aging rate of the two rubber protective belts can be reduced, when the rubber protective belts need to be replaced, the flange ring on the upper portion is detached, and the rubber protective belts can be replaced conveniently. Then bolts for locking the first arc-shaped connecting plate and the second arc-shaped connecting plate are disassembled, at the moment, a glue dissolving agent is smeared at the joint of the two rubber protection belts, connection between the two rubber protection belts can be relieved, and the first rubber protection belt and the second rubber protection belt can be rapidly disassembled; therefore, the rubber protection belt can be replaced conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of vibration isolation devices, in particular to a novel bridge support vibration reduction and isolation device. Background Art

[0002] The new type of bridge bearing seismic isolation device is the core load-bearing and functional component in the bridge structure that connects the bridge superstructure (such as the beam body) and the substructure (such as piers and abutments). Its definition can be summarized as: a special device that integrates the dual functions of "support and load-bearing" and "seismic isolation and protection". Through specific mechanical structure and material properties, it can not only transfer the load of the bridge superstructure (such as its own weight, vehicle load, and crowd load) to the substructure, but also weaken the transmission of vibration energy and limit structural displacement under external effects such as earthquakes, temperature changes or vehicle impacts.

[0003] While existing bridge bearing isolation devices can achieve basic support and seismic isolation functions, they suffer from significant structural design flaws, most notably aging of the rubber bearings due to long-term exposure, which severely impacts the device's service life and functional stability. In current mainstream bridge bearing isolation devices, the rubber bearings, as the core load-bearing and deformation-bearing components, are often directly exposed to the external environment beneath the bridge. Salt and corrosive gases in the air can exacerbate chemical aging of the rubber. Utility Model Content

[0004] The purpose of the present invention is to solve at least one of the above technical deficiencies.

[0005] Therefore, one purpose of the present invention is to propose a novel bridge support seismic isolation device to solve the problems mentioned in the background technology and overcome the deficiencies in the prior art.

[0006] In order to achieve the above-mentioned purpose, an embodiment of one aspect of the present invention provides a new type of bridge support seismic isolation device, comprising two horizontally arranged connecting steel plates, the two connecting steel plates corresponding to each other up and down, the inner sides of the two connecting steel plates are fixed with sealing plates by bolts, a plurality of linear arrays of rubber sheets are arranged between the two sealing plates, a steel sheet is bonded between each two adjacent rubber sheets by glue, the diameters of the steel sheet and the rubber sheet are equal, the side of the two sealing plates close to the rubber sheet is fixedly connected to the rubber sheet by glue, and a through hole is opened at the center of the circle of the sealing plate, the rubber sheet and the steel sheet. The holes are formed on the inner walls of the through holes and are bonded with lead cores by glue. The bottom and top surfaces of the lead cores are respectively fitted with two connecting steel plates. The outer surface of each of the sealing plates is fixed with a first arc-shaped connecting plate and a second arc-shaped connecting plate by bolts. The end surfaces of the first arc-shaped connecting plate and the second arc-shaped connecting plate are fitted with each other. A first rubber protective belt is fixedly connected between the two upper and lower corresponding first arc-shaped connecting plates. A second rubber protective belt is fixedly connected between the two upper and lower corresponding second arc-shaped connecting plates. The end surfaces of the first rubber protective belt and the second rubber protective belt are fixedly connected by glue.

[0007] Preferably, any of the above schemes is that flange rings are fixedly installed on the inner sides of the two connecting steel plates by bolts, a rubber bellows is fixedly connected between the two flange rings, and the first rubber protective belt and the second rubber protective belt are both located inside the rubber bellows.

[0008] Preferably, any of the above schemes is that the inner sides of the two connecting steel plates are fixedly connected to limit rings, and the two flange rings are slidingly connected to the two limit rings respectively.

[0009] Preferably, any of the above schemes has a plurality of circular array positioning pins fixedly connected to the outer sides of the two sealing plates, and positioning holes are provided through the top surfaces of the two connecting steel plates, through which the positioning pins are slidably connected to the connecting steel plates.

[0010] Preferably, any of the above schemes has an annular sealing groove on the outer surface of the sealing plate, and the inner sides of the first arc-shaped connecting plate and the second arc-shaped connecting plate are fixedly connected with arc-shaped sealing gaskets, and the two sealing gaskets are slidably connected to the sealing plate through the sealing groove.

[0011] Preferably, any of the above schemes has several limiting protrusions in a circumferential array fixedly connected to the top and bottom surfaces of the steel sheet, and several limiting grooves in a circumferential array are provided on the top and bottom surfaces of the rubber sheet, and the limiting protrusions are slidably connected to the rubber sheet through the limiting grooves.

[0012] Preferably, any of the above schemes is that the end surface of the first rubber protective belt is fixedly connected to a plurality of linear arrays of rubber protrusions, and the end surface of the second rubber protective belt is provided with a plurality of linear arrays of arc grooves, and the rubber protrusions are connected to the second rubber protective belt by sliding.

[0013] Compared with the prior art, the advantages and beneficial effects of the present invention are as follows:

[0014] 1. When it is necessary to install the bridge support, bolts can be used to connect the two connecting steel plates to the bridge and the support column respectively. Since the top and bottom surfaces of the steel sheet are fixedly connected to the limiting protrusions, the limiting protrusions are embedded in the limiting grooves, which can improve the contact surface between the steel sheet and the rubber sheet, greatly improving the glue bonding strength between the steel sheet and the rubber sheet. Then, bolts are used to install the first arc-shaped connecting plate and the second arc-shaped connecting plate on the sealing plate, and the end faces of the first rubber protective belt and the second rubber protective belt are bonded by glue. Several steel sheets and rubber sheets can be encapsulated inside the first rubber protective belt and the second rubber protective belt. Then, bolts are used to install the two flange rings on the two connecting steel plates respectively. The first rubber protective belt and the second rubber protective belt can be isolated from the outside air by the rubber bellows, which can reduce the aging rate of the two rubber protective belts.

[0015] 2. When the rubber protective belt needs to be replaced, remove the upper flange ring, and then remove the bolts that lock the first arc-shaped connecting plate and the second arc-shaped connecting plate. At this time, apply glue solvent to the connection between the two rubber protective belts to release the connection between the two rubber protective belts. The first rubber protective belt and the second rubber protective belt can be quickly removed to facilitate replacement of the rubber protective belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the assembly of the utility model;

[0017] Figure 2 It is a schematic diagram of the cross-sectional structure of the assembly of the utility model;

[0018] Figure 3 This is a schematic diagram of the exploded structure of the assembly of the utility model;

[0019] Figure 4 This is a schematic diagram of the explosion structure of the rubber sheet of the utility model;

[0020] Figure 5 This is a schematic structural diagram of the first rubber protective belt of the present invention;

[0021] Figure 6 This is a schematic structural diagram of the second rubber protective belt of the present invention.

[0022] In the figure: 1-connecting steel plate, 2-sealing plate, 3-rubber sheet, 4-steel sheet, 5-through hole, 6-lead core, 7-first arc-shaped connecting plate, 8-second arc-shaped connecting plate, 9-first rubber protective strip, 10-second rubber protective strip, 11-flange ring, 12-limiting ring, 13-locating pin, 14-locating hole, 15-annular sealing groove, 16-arc-shaped sealing gasket, 17-limiting protrusion, 18-limiting groove, 19-rubber protrusion, 20-arc-shaped groove, 21-rubber bellows. DETAILED DESCRIPTION

[0023] The present invention will be further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following.

[0024] like Figures 1 to 6 As shown, a new type of bridge support seismic isolation device comprises two horizontally arranged connecting steel plates 1, the two connecting steel plates 1 correspond to each other up and down, the inner sides of the two connecting steel plates 1 are fixed with sealing plates 2 by bolts, a plurality of linear array rubber sheets 3 are arranged between the two sealing plates 2, a steel sheet 4 is bonded between every two adjacent rubber sheets 3 by glue, the diameters of the steel sheet 4 and the rubber sheet 3 are equal, the two sealing plates 2 are fixedly connected to the rubber sheet 3 on one side close to the rubber sheet 3 by glue, and through holes 5 are opened at the center of the sealing plates 2, the rubber sheet 3 and the steel sheet 4, and the plurality of through holes 5 are formed. The inner wall is bonded with a lead core 6 by glue, and the bottom and top surfaces of the lead core 6 are respectively fitted with two connecting steel plates 1. The outer surface of each sealing plate 2 is fixed with a first arc-shaped connecting plate 7 and a second arc-shaped connecting plate 8 by bolts. The end faces of the first arc-shaped connecting plate 7 and the second arc-shaped connecting plate 8 are fitted together. A first rubber protective belt 9 is fixedly connected between the two upper and lower corresponding first arc-shaped connecting plates 7, and a second rubber protective belt 10 is fixedly connected between the two upper and lower corresponding second arc-shaped connecting plates 8. The end faces of the first rubber protective belt 9 and the second rubber protective belt 10 are fixedly connected by glue.

[0025] As an optional technical solution of the present invention, flange rings 11 are fixedly installed on the inner sides of the two connecting steel plates 1 by bolts, and a rubber bellows 21 is fixedly connected between the two flange rings 11. The first rubber protective belt 9 and the second rubber protective belt 10 are both located inside the rubber bellows 21. The rubber bellows 21 can isolate the first rubber protective belt 9 and the second rubber protective belt 10 from the outside air, thereby reducing the aging rate of the two rubber protective belts.

[0026] As an optional technical solution of the present invention, the inner sides of the two connecting steel plates 1 are fixedly connected with limiting rings 12, and the two flange rings 11 are slidingly connected to the two limiting rings 12 respectively. The limiting rings 12 can limit the flange rings 11, making it easier to install the flange rings 11.

[0027] As an optional technical solution of the present invention, the outer sides of the two sealing plates 2 are fixedly connected with a number of circular array positioning pins 13, and the top surfaces of the two connecting steel plates 1 are penetrated with positioning holes 14. The positioning pins 13 are slidingly connected to the connecting steel plates 1 through the positioning holes 14. The setting of the positioning pins 13 can improve the connection stability between the connecting steel plates 1 and the sealing plates 2.

[0028] As an optional technical solution of the present invention, an annular sealing groove 15 is provided on the outer surface of the sealing plate 2, and the inner sides of the first arc-shaped connecting plate 7 and the second arc-shaped connecting plate 8 are fixedly connected with an arc-shaped sealing gasket 16. The two sealing gaskets 16 are slidingly connected to the sealing plate 2 through the sealing groove 15. The setting of the arc-shaped sealing gasket 16 can improve the sealing performance between the first arc-shaped connecting plate 7, the second arc-shaped connecting plate 8 and the sealing plate 2.

[0029] As an optional technical solution of the present invention, the top and bottom surfaces of the steel sheet 4 are fixedly connected with a plurality of circumferential array limiting protrusions 17, and the top and bottom surfaces of the rubber sheet 3 are provided with a plurality of circumferential array limiting grooves 18. The limiting protrusions 17 are slidingly connected to the rubber sheet 3 through the limiting grooves 18. The limiting protrusions 17 are embedded in the limiting grooves 18, which can improve the contact surface between the steel sheet 4 and the rubber sheet 3, and greatly improve the glue bonding strength between the steel sheet 4 and the rubber sheet 3.

[0030] As an optional technical solution of the present invention, the end face of the first rubber protective belt 9 is fixedly connected with a plurality of linear arrays of rubber protrusions 19, and the end face of the second rubber protective belt 10 is provided with a plurality of linear arrays of arc grooves 20, and the rubber protrusions 19 are connected to the second rubber protective belt 10 by sliding.

[0031] A new type of bridge bearing seismic isolation device, the working principle is as follows:

[0032] 1): When it is necessary to install the bridge support, the two connecting steel plates 1 can be connected to the bridge and the support column respectively using bolts, and then the first arc-shaped connecting plate 7 and the second arc-shaped connecting plate 8 can be installed on the sealing plate 2 using bolts, and the end faces of the first rubber protective belt 9 and the second rubber protective belt 10 can be bonded with glue. Several steel sheets 4 and rubber sheets 3 can be encapsulated inside the first rubber protective belt 9 and the second rubber protective belt 10.

[0033] 2) Use bolts to install the two flange rings 11 on the two connecting steel plates 1 respectively. The first rubber protective belt 9 and the second rubber protective belt 10 can be isolated from the outside air through the rubber bellows 21.

[0034] 3): When the rubber protective belt needs to be replaced, remove the upper flange ring 11, and then remove the bolts that lock the first arc-shaped connecting plate 7 and the second arc-shaped connecting plate 8. At this time, use glue solvent to apply to the connection between the two rubber protective belts to release the connection between the two rubber protective belts.

[0035] To sum up, the new bridge support seismic isolation device can use bolts to connect the two connecting steel plates 1 to the bridge and the support column respectively when the bridge support needs to be installed. Since the top and bottom surfaces of the steel sheet 4 are fixedly connected to the limiting protrusions 17, the limiting protrusions 17 are embedded in the limiting grooves 18, which can improve the contact surface between the steel sheet 4 and the rubber sheet 3, and greatly improve the glue bonding strength between the steel sheet 4 and the rubber sheet 3. Subsequently, the first arc-shaped connecting plate 7 and the second arc-shaped connecting plate 8 are installed on the sealing plate 2 with bolts, and the end faces of the first rubber protective belt 9 and the second rubber protective belt 10 are bonded by glue. Several steel sheets 4 and rubber sheets 3 can be encapsulated in the first rubber protective belt 9 and the second rubber protective belt 10. Inside the second rubber protective belt 10, the two flange rings 11 are then installed on the two connecting steel plates 1 respectively using bolts. The first rubber protective belt 9 and the second rubber protective belt 10 can be isolated from the outside air through the rubber bellows 21, which can reduce the aging rate of the two rubber protective belts. When the rubber protective belt needs to be replaced, the upper flange ring 11 is removed, and then the bolts locking the first arc-shaped connecting plate 7 and the second arc-shaped connecting plate 8 are removed. At this time, glue solvent is applied to the connection between the two rubber protective belts to release the connection between the two rubber protective belts. The first rubber protective belt 9 and the second rubber protective belt 10 can be quickly removed to facilitate the replacement of the rubber protective belt.

Claims

1. A novel bridge bearing seismic isolation device, characterized by: The invention comprises two horizontally arranged connecting steel plates (1), the two connecting steel plates (1) correspond to each other in the upper and lower parts, the inner sides of the two connecting steel plates (1) are fixed with a sealing plate (2) by bolts, a plurality of rubber sheets (3) in a linear array are arranged between the two sealing plates (2), a steel sheet (4) is glued between each two adjacent rubber sheets (3), the diameters of the steel sheet (4) and the rubber sheet (3) are equal, the side of the two sealing plates (2) close to the rubber sheet (3) is fixedly connected to the rubber sheet (3) by glue, the sealing plates (2), the rubber sheet (3) and the steel sheet (4) are all provided with a through hole (5) at the center of the circle, and the inner wall of a plurality of the through holes (5) is through-holed. A lead core (6) is bonded with glue, and the bottom surface and the top surface of the lead core (6) are respectively fitted with two connecting steel plates (1). The outer surface of each sealing plate (2) is fixed with a first arc-shaped connecting plate (7) and a second arc-shaped connecting plate (8) by bolts, and the end surfaces of the first arc-shaped connecting plate (7) and the second arc-shaped connecting plate (8) are fitted with each other. A first rubber protective belt (9) is fixedly connected between the two upper and lower corresponding first arc-shaped connecting plates (7), and a second rubber protective belt (10) is fixedly connected between the two upper and lower corresponding second arc-shaped connecting plates (8), and the end surfaces of the first rubber protective belt (9) and the second rubber protective belt (10) are fixedly connected by glue.

2. The novel bridge support seismic isolation device according to claim 1 is characterized in that: Flange rings (11) are fixedly installed on the inner sides of the two connecting steel plates (1) by bolts, a rubber bellows (21) is fixedly connected between the two flange rings (11), and the first rubber protective belt (9) and the second rubber protective belt (10) are both located inside the rubber bellows (21).

3. The novel bridge support seismic isolation device according to claim 2 is characterized in that: The inner sides of the two connecting steel plates (1) are fixedly connected with limiting rings (12), and the two flange rings (11) are respectively slidably connected to the two limiting rings (12).

4. The novel bridge support seismic isolation device according to claim 3 is characterized by: The outer sides of the two sealing plates (2) are fixedly connected with a plurality of positioning pins (13) in a circumferential array, and the top surfaces of the two connecting steel plates (1) are penetrated with positioning holes (14), and the positioning pins (13) are slidably connected to the connecting steel plates (1) through the positioning holes (14).

5. The novel bridge support seismic isolation device according to claim 4 is characterized in that: An annular sealing groove (15) is provided on the outer surface of the sealing plate (2), and arc-shaped sealing gaskets (16) are fixedly connected to the inner sides of the first arc-shaped connecting plate (7) and the second arc-shaped connecting plate (8), and the two sealing gaskets (16) are slidably connected to the sealing plate (2) through the sealing groove (15).

6. The novel bridge support seismic isolation device according to claim 5 is characterized by: The top and bottom surfaces of the steel sheet (4) are fixedly connected with a plurality of limiting protrusions (17) in a circumferential array, and the top and bottom surfaces of the rubber sheet (3) are provided with a plurality of limiting grooves (18) in a circumferential array, and the limiting protrusions (17) are slidably connected to the rubber sheet (3) via the limiting grooves (18).

7. The novel bridge support seismic isolation device according to claim 6 is characterized by: The end surface of the first rubber protective belt (9) is fixedly connected to a plurality of linear array rubber protrusions (19), and the end surface of the second rubber protective belt (10) is provided with a plurality of linear array arc grooves (20), and the rubber protrusions (19) are connected to the second rubber protective belt (10) by sliding.

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