Bridge rubber support

Abstract

The utility model discloses a bridge rubber support, which relates to the technical field of bridge supports and comprises an upper mounting plate, a lower mounting plate and a rubber support body arranged between the upper mounting plate and the lower mounting plate, and an elastic protective sleeve is arranged between the upper mounting plate and the lower mounting plate. The rubber support body is located in an inner cavity of the elastic protective sleeve. The rubber support body can be protected, so that the service life of the rubber support body is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of bridge bearing technology, and in particular to a bridge rubber bearing. Background Technology

[0002] Bridge rubber bearings are made of multiple layers of rubber sheets and thin steel plates that are vulcanized and bonded together. They have sufficient vertical stiffness to reliably transfer the pressure of the superstructure to the piers; good elasticity to accommodate the rotation of the beam ends; and large shear deformation capacity to meet the horizontal displacement of the superstructure in both the length and width directions.

[0003] However, the existing bridge rubber bearings are usually directly exposed to the air. The particles in the sand and dust (such as quartz and silica sand) are hard and will continuously scrape the surface of the rubber bearing, causing wear and pitting. In addition, the sand and dust in the air may contain salt, acid or alkaline substances (such as saline soil dust in Northwest China, areas with heavy industry, and near chemical plants), which will react chemically with the rubber. In addition, the pitting on the surface of the rubber bearing will increase the reaction area, which will greatly reduce the service life of the rubber bearing and increase the replacement frequency.

[0004] Therefore, it is necessary to develop a bridge rubber bearing to address the aforementioned shortcomings. Utility Model Content

[0005] The purpose of this invention is to provide a bridge rubber bearing that can protect the bearing body and thus extend its service life.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] This utility model discloses a bridge rubber bearing, comprising an upper mounting plate, a lower mounting plate, and a rubber bearing body disposed between the upper mounting plate and the lower mounting plate. An elastic protective sleeve is disposed between the upper mounting plate and the lower mounting plate, and the rubber bearing body is located in the inner cavity of the elastic protective sleeve.

[0008] Optionally, pressure rings can be detachably connected to the opposing surfaces of the upper mounting plate and the lower mounting plate. The top and bottom ends of the elastic protective sleeve are integrally formed with outward flanges. The outward flange at the top end is pressed between one of the pressure rings and the upper mounting plate, and the outward flange at the bottom end is pressed between another pressure ring and the lower mounting plate.

[0009] Optionally, the elastic protective sleeve includes two semicircular sleeves, which are fixedly connected by a connecting component.

[0010] Optionally, the connecting component includes an outer extension integrally formed at both ends of one of the semicircular sleeves and an inner extension integrally formed at both ends of the other semicircular sleeve. The outer extension and the inner extension are staggered and overlapped and fixedly connected.

[0011] Optionally, the pressure ring includes two separable semicircular rings.

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

[0013] The elastic protective sleeve, upper mounting plate, and lower mounting plate form a sealed cavity, which prevents external substances and corrosive media from contacting the rubber bearing body, thereby extending the service life of the rubber bearing body and reducing the replacement frequency.

[0014] The elastic protective sleeve consists of a sleeve structure composed of two semi-circular sleeves, which facilitates the replacement of new elastic protective sleeves. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is an exploded structural diagram of a portion of the present invention;

[0018] Figure 3 This is a three-dimensional structural diagram of the elastic protective sleeve;

[0019] Figure 4 This is an exploded view of the elastic protective sleeve.

[0020] Figure 5 A schematic diagram of the three-dimensional structure of the pressure ring.

[0021] Figure 6 This is a schematic diagram of the three-dimensional structure of a semi-circular ring.

[0022] Explanation of reference numerals in the attached drawings: 100, upper mounting plate; 200, lower mounting plate; 300, rubber support body; 400, elastic protective sleeve; 401, outward flange; 410, semi-circular sleeve; 420, outer extension; 430, inner extension; 500, pressure ring; 510, semi-circular ring; 511, upper arc plate; 512, lower arc plate. Detailed Implementation

[0023] The core of this utility model is to provide a bridge rubber bearing that can protect the rubber bearing body and thus extend its service life.

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. 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.

[0025] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] In one specific embodiment of this utility model, such as Figures 1-6 As shown, the device includes an upper mounting plate 100, a lower mounting plate 200, and a rubber bearing body 300 disposed between the upper mounting plate 100 and the lower mounting plate 200. An elastic protective sleeve 400 is disposed between the upper mounting plate 100 and the lower mounting plate 200, and the rubber bearing body 300 is located within the inner cavity of the elastic protective sleeve 400. The upper mounting plate 100, the lower mounting plate 200, and the rubber bearing body 300 are all existing technologies. The rubber bearing body 300 is briefly described here. It is made of multiple layers of rubber sheets and thin steel plates, which are vulcanized and bonded together. Depending on actual needs, a lead core can also be placed inside the rubber bearing body 300. The elastic protective sleeve 400 can be made of the same rubber material as the rubber sheets or other weather-resistant elastic materials.

[0027] The elastic protective sleeve 400 can be a one-piece molded sleeve; or the elastic protective sleeve 400 can be a sleeve composed of two semi-circular sleeves 410. Compared with the former method, when replacing the new elastic protective sleeve 400, it is not necessary to disassemble the rubber support body 300, which reduces the difficulty of replacement. This manual will focus on the second method.

[0028] The inner diameter of the elastic protective sleeve 400 can be equal to or greater than the outer diameter of the rubber support body 300.

[0029] A sealed cavity is formed between the elastic protective sleeve 400, the upper mounting plate 100, and the lower mounting plate 200, preventing external substances and corrosive media from contacting the rubber support body 300.

[0030] In one specific embodiment of this utility model, such as Figure 1 and 2As shown, pressure rings 500 are detachably connected to the opposing surfaces of the upper mounting plate 100 and the lower mounting plate 200. The elastic protective sleeve 400 has integrally formed outward flanges 401 at both its top and bottom ends. The outward flange 401 at the top end is pressed between one pressure ring 500 and the upper mounting plate 100, and the outward flange 401 at the bottom end is pressed between another pressure ring 500 and the lower mounting plate 200. Multiple through holes can be provided on the pressure rings 500, and bolts are installed in these holes. The pressure rings 500 are connected to the upper and lower mounting plates via bolts, and holes are provided on the outward flanges 401 for the bolts to pass through.

[0031] In one specific embodiment of this utility model, such as Figures 1-4 As shown, the elastic protective sleeve 400 includes two semi-circular sleeves 410, which are fixedly connected by a connecting assembly.

[0032] In one specific embodiment of this utility model, such as Figures 1-4 As shown, the connecting assembly includes an outer extension 420 integrally formed at both ends of one semicircular sleeve 410 and an inner extension 430 integrally formed at both ends of the other semicircular sleeve 410. The outer extension 420 and the inner extension 430 are staggered, that is, the outer extension 420 is flush with the outer surface of the semicircular sleeve 410, and the inner extension 430 is flush with the inner surface of the semicircular sleeve 410. After the outer extension 420 and the inner extension 430 overlap, the sum of their wall thicknesses is equal to the wall thickness of the semicircular sleeve 410. The outer extension 420 and the inner extension 430 overlap and are fixedly connected. The outer extension 420 and the inner extension 430 can be connected using a fixed connection method at the joints of the two ends of a rubber conveyor belt, such as vulcanization or bonding, or they can be fixedly connected by ultrasonic welding, which is existing technology and will not be described in detail here.

[0033] In one specific embodiment of this utility model, such as Figure 1 , 2 As shown in Figures 5 and 6, the pressure ring 500 includes two separable semicircular rings 510. Clearly, one semicircular ring 510 has an upper arc-shaped plate 511 integrally formed at both ends, and the other semicircular ring 510 has a lower arc-shaped plate 512 integrally formed at both ends. The upper arc-shaped plates 511 and 512 are staggered and overlap, and corresponding through holes for bolts are provided on the upper arc-shaped plates 511 and 512. The arrangement of the upper and lower arc-shaped plates ensures that the pressure on the outer flange 401 at the joint of the two semicircular rings 510 is more uniform.

[0034] When replacing the elastic protective sleeve 400, unscrew the bolts on the pressure ring 500 to remove the semicircular ring 510. The old elastic protective sleeve 400 can then be destructively removed (e.g., by cutting it open with a knife). Place the new semicircular sleeve 410 on both sides of the rubber support body 300 and securely connect the two semicircular sleeves 410 together using the outer extension 420 and inner extension 430 (the outer extension 420 and inner extension 430 can be connected using the same method as the joints at both ends of a rubber conveyor belt, such as vulcanization or bonding, or by ultrasonic welding). Then, attach the semicircular ring 510 to the side of the outer flange 401 furthest from the upper and lower mounting plates, and finally secure the semicircular ring 510 to the upper and lower mounting plates with bolts.

[0035] A sealed cavity is formed between the elastic protective sleeve 400, the upper mounting plate 100, and the lower mounting plate 200, preventing external substances and corrosive media from contacting the rubber support body 300.

[0036] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably, and the embodiments can be combined with each other. For the apparatus disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to in the method section.

[0037] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A bridge rubber bearing, comprising an upper mounting plate (100), a lower mounting plate (200), and a rubber bearing body (300) disposed between the upper mounting plate (100) and the lower mounting plate (200), characterized in that, An elastic protective sleeve (400) is provided between the upper mounting plate (100) and the lower mounting plate (200), and the rubber support body (300) is located in the inner cavity of the elastic protective sleeve (400); Pressure rings (500) are detachably connected to the opposing surfaces of the upper mounting plate (100) and the lower mounting plate (200). The elastic protective sleeve (400) has an outward flange (401) integrally formed at both the top and bottom ends. The outward flange (401) at the top end is pressed between one of the pressure rings (500) and the upper mounting plate (100), and the outward flange (401) at the bottom end is pressed between another pressure ring (500) and the lower mounting plate (200).

2. The bridge rubber bearing according to claim 1, characterized in that: The elastic protective sleeve (400) includes two semi-circular sleeves (410), which are fixedly connected by a connecting component.

3. The bridge rubber bearing according to claim 2, characterized in that: The connecting assembly includes an outer extension (420) integrally formed at both ends of one of the semicircular sleeves (410) and an inner extension (430) integrally formed at both ends of the other semicircular sleeve (410). The outer extension (420) and the inner extension (430) are staggered inside and outside, and the outer extension (420) and the inner extension (430) overlap and are fixedly connected.

4. The bridge rubber bearing according to claim 2, characterized in that: The pressure ring (500) includes two separable semicircular rings (510).

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