Bridge bearing convenient to replace

Abstract

This utility model discloses a bridge bearing that is easy to replace, relating to the field of bridge technology. It includes a bearing body, and further includes: a base assembly located below the bearing body; a first wedge assembly slidably connected to the base assembly; a second wedge assembly fixedly connected to the bottom end of the bearing body and slidably connected to the first wedge assembly; and a limiting assembly detachably connected to restrain the first and second wedge assemblies. This utility model can reduce the height required to lift the bridge beam during bearing replacement, simplify the replacement process, improve replacement efficiency, and reduce replacement costs.

Description

Technical Field

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

[0002] Bridge bearings are crucial structural components connecting the superstructure and substructure of a bridge. Located between the beams and piers, they reliably transfer the loads and deformations (including displacement and rotation) borne by the beams to the piers, serving as a vital force transmission device for bridges. In practical applications, bridge bearings are classified into two types: fixed bearings and movable bearings. Commonly used bearing types in engineering include asphalt or flat plate bearings, plate rubber bearings, spherical bearings, steel bearings, and special bearings.

[0003] In existing bridge bearing replacement technologies, given the significant weight of the bridge beam, hydraulic jacks are commonly used to lift the beam during construction. The beam needs to be lifted to a certain height to create a gap of typically 3 to 5 centimeters between the beam and the bridge bearing, thus providing sufficient space to smoothly pull out the old bearing and insert the new one. However, this traditional replacement method has significant drawbacks. As the lifting height increases, it not only consumes more energy and significantly extends construction time, but also places higher demands on the performance of the hydraulic equipment, increasing equipment costs.

[0004] Therefore, there is an urgent need to provide a new type of bridge bearing to reduce the height required for jacking during replacement. Utility Model Content

[0005] The purpose of this invention is to provide a bridge bearing that is easy to replace, which can reduce the height required to lift the beam when replacing the bridge bearing, simplify the replacement process, improve replacement efficiency, and reduce replacement costs.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: This utility model discloses a bridge bearing that is easy to replace, comprising a bearing body, and further comprising: The base assembly is located below the support body; The first wedge assembly is slidably connected to the base assembly; The second wedge assembly is fixedly connected to the bottom end of the support body and slidably connected to the first wedge assembly; A limiting component that can be detachably connected to restrain the first wedge component and the second wedge component.

[0007] Optionally, the base assembly includes a base block, and the first wedge assembly includes four circumferentially distributed lower wedges. The bottom surface of the base block is provided with a first sliding groove corresponding to each of the lower wedges. A first slider is fixed to the bottom end of each lower wedge, and the first slider is slidably engaged with the first sliding groove. The top end of each lower wedge is provided with a first inclined surface for sliding cooperation with the second wedge assembly, and the end of the first inclined surface away from the limiting component is the lower end.

[0008] Optionally, the second wedge assembly includes an upper wedge that corresponds one-to-one with the lower wedge. The upper wedge is fixedly connected to the base plate of the support body. The bottom end of the upper wedge is provided with a second inclined surface for sliding cooperation with the lower wedge. The end of the second inclined surface away from the limiting assembly is the lower end.

[0009] Optionally, a second groove is provided on the first inclined surface or the second inclined surface, and a second slider is fixed on the corresponding second inclined surface or the first inclined surface, and the second slider is slidably engaged with the second groove.

[0010] Optionally, a positioning post is fixed at the center of the top of the base block, and a positioning tube is fixed at the bottom of the base plate of the support body. The positioning tube is inserted into and slidably engaged with the positioning post. The end of the lower wedge block is in contact with the peripheral surface of the positioning tube. There is a gap between the top of the positioning post and the base plate, and between the bottom of the positioning tube and the base block.

[0011] Optionally, the limiting component includes several arc-shaped clamps, which are disposed on the periphery of the lower wedge and the upper wedge, and adjacent arc-shaped clamps are bolted together.

[0012] Optionally, multiple stiffening plates are fixed at intervals on the outer surface of the arc-shaped clamp.

[0013] Optionally, the lower wedge block has a groove at one end facing the limiting component, and a rod is fixed in the groove.

[0014] Compared with the prior art, the beneficial technical effects of this utility model are as follows: By using the inclined surfaces of the upper and lower wedges, when replacing bridge bearings, only a very small height (0.5 to 1 cm) of the beam needs to be raised. As long as there is a gap between the bearing body and the beam, the upper wedge and the bearing body will descend during the removal of the lower wedge, thereby creating sufficient space between the top plate of the bearing body and the beam to facilitate bearing replacement. Compared with the traditional method, this significantly reduces the lifting height, energy consumption and construction time, and lowers the performance requirements and equipment costs of hydraulic equipment. Attached Figure Description

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

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This is a top view of the first wedge block assembly of this utility model.

[0017] Explanation of reference numerals in the attached drawings: 100, support body; 110, positioning tube; 200, base block; 210, first sliding groove; 220, positioning column; 300, lower wedge block; 400, upper wedge block; 500, second sliding groove; 600, second slider; 700, arc-shaped clamp; 710, stiffening plate; 800, rod body. Detailed Implementation

[0018] The core of this utility model is to provide a bridge bearing that is easy to replace, which can reduce the height required to lift the beam when replacing the bridge bearing, simplify the replacement process, improve replacement efficiency, and reduce replacement costs.

[0019] 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.

[0020] In this utility model, unless otherwise explicitly specified and limited, the terms "setting", "installing", "connecting", "joining", "fixing", "sleeving", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0021] 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.

[0022] In a specific embodiment of this utility model, a support body 100 is included. The support body 100 belongs to the prior art and can be a support with a bottom plate and a top plate as described in this application, as mentioned in the background art.

[0023] This application also includes: The base assembly is located below the support body 100; The first wedge assembly is slidably connected to the base assembly; The second wedge assembly is fixedly connected to the bottom end of the support body 100 and slidably connected to the first wedge assembly; The limiting component is detachably connected to restrain the first wedge assembly and the second wedge assembly.

[0024] In a specific embodiment of this utility model, the base assembly includes a base block 200, and the first wedge assembly includes four circumferentially distributed lower wedges 300. The bottom surface of the base block 200 has a first sliding groove 210 corresponding to each lower wedge 300. A first slider is fixed to the bottom end of each lower wedge 300, and the first slider slides into the first sliding groove 210. This ensures a stable sliding connection between the base block 200 and the lower wedges 300 and prevents them from separating. Furthermore, the first slider and the first sliding groove 210 ensure that the lower wedges 300 are evenly distributed during installation, thus ensuring uniform force distribution on the second wedge assembly. The top of each lower wedge 300 has a first inclined surface for sliding engagement with the second wedge assembly, with the end of the first inclined surface furthest from the limiting component being the lower end. The first sliding groove 210 is a dovetail groove or a T-shaped groove. The base block 200 can be detachably connected to the bridge pier using bolts.

[0025] In a specific embodiment of this utility model, the second wedge assembly includes an upper wedge 400 corresponding to the lower wedge 300. The upper wedge 400 is fixedly connected to the bottom plate of the support body 100. The bottom end of the upper wedge 400 is provided with a second inclined surface for sliding engagement with the lower wedge 300. The end of the second inclined surface away from the limiting component is the lower end. The lower wedge 300 and the upper wedge 400 engage through the first and second inclined surfaces. When replacing the bridge support, the height required to lift the beam can be reduced (e.g., only 0.5 to 1 cm needs to be lifted, as long as a gap can be created between the support body 100 and the beam). During the removal of the lower wedge 300, the upper wedge 400 and the support body 100 will descend, thereby creating a sufficient gap between the top plate of the support body 100 and the beam, creating space for support replacement.

[0026] In a specific embodiment of this utility model, a second sliding groove 500 is provided on the first inclined surface or the second inclined surface, and a second slider 600 is fixed on the corresponding second inclined surface or the first inclined surface. The second slider 600 is slidably engaged with the second sliding groove 500. The second sliding groove 500 is a dovetail groove or a T-shaped groove. The above arrangement ensures the stability of the fit between the upper and lower wedges and prevents them from separating.

[0027] In a specific embodiment of this utility model, a positioning post 220 is fixed at the center of the top of the base block 200, and a positioning tube 110 is fixed at the bottom of the base plate of the support body 100. The positioning tube 110 is inserted into and slidably engaged with the positioning post 220. The end of the lower wedge block 300 is in contact with the peripheral surface of the positioning tube 110. There is a gap between the top of the positioning post 220 and the base plate, and between the bottom of the positioning tube 110 and the base block 200.

[0028] The interval can be 3 to 10 centimeters. The purpose is that, during the removal of the lower wedge 300, the support body 100 will descend with the cooperation of the second slider 600 and the second slide groove 500, thereby creating sufficient movement space between the top plate (which can be detachably connected to the beam body via bolts) at the top of the support body 100 and the beam body, facilitating the entry and exit of the device. In addition, when the top of the positioning column 220 contacts the base plate or the bottom of the positioning tube 110 contacts the base block 200, the distance between the high end of the second inclined surface and the base block 200 is equal to or greater than the distance between the low end of the first inclined surface and the base block 200, so that the second slider 600 can smoothly enter the second slide groove 500 during the installation process.

[0029] During installation, the positioning post 220 is inserted into the positioning tube 110, and then the support body 100 together with the base block 200 is installed on the pier. Next, the lower wedge block 300 is installed, allowing the first slider to slide in connection with the first groove 210. Then, the four lower wedge blocks 300 can be secured with steel wire ropes (the steel wire ropes can be attached to the base block 200). The steel wire ropes are tightened with a tensioner. During tightening, the support body 100 is rotated and adjusted as needed to ensure that the second groove 500 on the upper wedge block 400 is in contact with the second slider. When the 600 is aligned, since the upper and lower wedges cooperate with each other through two inclined surfaces, during the tightening process, the lower wedge 300 lifts the upper wedge 400, and the support body 100 rises. When the support body 100 no longer rises, the arc-shaped clamp 700 is installed (the bottom end of the arc-shaped clamp 700 can be attached to the wire rope) and pre-tightened with bolts. At this time, the wire rope can be removed, and then the arc-shaped clamp 700 is gently struck to make it fall and cover the position originally occupied by the wire rope. At this time, the bolts on the arc-shaped clamp 700 can be tightened.

[0030] In a specific embodiment of this utility model, the limiting component includes several arc-shaped clamps 700 (such as two semi-circular clamps). The arc-shaped clamps 700 are disposed around the lower wedge block 300 and the upper wedge block 400, and adjacent arc-shaped clamps 700 are bolted together, providing a binding force to the upper and lower wedge blocks through the arc-shaped clamps 700. The top end of the arc-shaped clamp 700 may be provided with a flange, which presses against the bottom plate of the support body 100, and a sealing ring may be provided between the flange and the bottom plate to prevent dust from entering. In addition, rubber sealing components (adhesive or snap-fit) may be provided between the first sliding groove 210 and the arc-shaped clamp 700 and between the arc-shaped clamp 700 and the base block 200 to prevent dust from entering.

[0031] In a specific embodiment of this utility model, multiple stiffening plates 710 are fixed at intervals on the outer surface of the arc-shaped clamp 700 to enhance the structural strength and stability of the limiting component.

[0032] In a specific embodiment of this utility model, a groove is provided at one end of the lower wedge block 300 facing the limiting component, and a rod body 800 is fixed in the groove. During disassembly, a rope or hook can be connected to the rod body 800 to pull the lower wedge block 300. During the pulling process, the support body 100 can descend with the cooperation of the second slider 600 and the second slide groove 500.

[0033] The working principle of this utility model for an easily replaceable bridge bearing: Remove the support to be replaced, unscrew the bolts between the support body 100 and the beam, lift the beam to create a gap between the beam and the support body 100 (the support body 100 no longer bears the force of the beam), remove the arc-shaped clamp 700, connect it to the rod 800 with a rope or hook, and pull the lower wedge block 300. During the pulling process, the support body 100 will descend with the cooperation of the second slider 600 and the second slide groove 500. When the top of the positioning column 220 contacts the base plate or the bottom of the positioning tube 110 contacts the base block 200, sufficient space is created between the top plate of the support body 100 and the beam. Remove the bolts on the base block 200 and take away the support to be replaced.

[0034] Install the support, insert the positioning column 220 into the positioning tube 110, then install the support body 100 together with the base block 200 onto the pier and secure the base block 200 to the pier. Next, install the lower wedges 300, allowing the first slider to slide into the first groove 210. Then, use a steel wire rope to secure the four lower wedges 300 (the steel wire rope can be attached to the base block 200). Tighten the steel wire rope with a tensioner, rotating and adjusting the support body 100 as needed during the tightening process to ensure that the second groove 500 on the upper wedge 400 is aligned with the second slider 600, until the second slider 600 enters the second groove 500. Due to the upper and lower wedges... The blocks are connected by two inclined planes. During the tightening process, the lower wedge block 300 lifts the upper wedge block 400, causing the support body 100 to rise. When the support body 100 stops rising, the arc-shaped clamp 700 (the bottom of the arc-shaped clamp 700 can be attached to the wire rope) is installed and pre-tightened with bolts. At this point, the wire rope can be removed, and the arc-shaped clamp 700 is gently struck to lower it and cover the position originally occupied by the wire rope. Then, the bolts on the arc-shaped clamp 700 can be tightened. The top plate of the support body 100 is then pre-tightened to the beam with bolts. The jack is removed, and the beam is supported on the support body 100. The bolts on the top plate and the beam are then tightened.

[0035] 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.

[0036] 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 bearing that is easy to replace, comprising a bearing body (100), characterized in that, Also includes: The base assembly is located below the support body (100); The first wedge assembly is slidably connected to the base assembly; The second wedge assembly is fixedly connected to the bottom end of the support body (100) and slidably connected to the first wedge assembly; A limiting component that can be detachably connected to restrain the first wedge component and the second wedge component.

2. The bridge bearing that is easy to replace according to claim 1, characterized in that: The base assembly includes a base block (200), and the first wedge assembly includes four circumferentially distributed lower wedges (300). The bottom surface of the base block (200) is provided with a first sliding groove (210) corresponding to each of the lower wedges (300). A first slider is fixed at the bottom end of the lower wedge (300), and the first slider is slidably engaged with the first sliding groove (210). The top end of the lower wedge (300) is provided with a first inclined surface for sliding cooperation with the second wedge assembly, and the end of the first inclined surface away from the limiting assembly is the lower end.

3. The bridge bearing that is easy to replace according to claim 2, characterized in that: The second wedge assembly includes an upper wedge (400) that corresponds one-to-one with the lower wedge (300). The upper wedge (400) is fixedly connected to the base plate of the support body (100). The bottom end of the upper wedge (400) is provided with a second inclined surface for sliding cooperation with the lower wedge (300). The end of the second inclined surface away from the limiting assembly is the lower end.

4. The bridge bearing that is easy to replace according to claim 3, characterized in that: A second groove (500) is provided on the first inclined surface or the second inclined surface, and a second slider (600) is fixed on the corresponding second inclined surface or the first inclined surface. The second slider (600) is slidably engaged with the second groove (500).

5. The bridge bearing that is easy to replace according to claim 3, characterized in that: A positioning post (220) is fixed at the center of the top of the base block (200), and a positioning tube (110) is fixed at the bottom of the base plate of the support body (100). The positioning tube (110) is inserted into and slidably engaged with the positioning post (220). The end of the lower wedge block (300) is in contact with the peripheral surface of the positioning tube (110). There is a gap between the top of the positioning post (220) and the base plate, and between the bottom of the positioning tube (110) and the base block (200).

6. The bridge bearing that is easy to replace according to claim 3, characterized in that: The limiting component includes several arc-shaped clamps (700), which are disposed on the periphery of the lower wedge (300) and the upper wedge (400), and adjacent arc-shaped clamps (700) are bolted together.

7. The bridge bearing that is easy to replace according to claim 6, characterized in that: The outer surface of the arc-shaped clamp (700) is fixed with multiple stiffening plates (710) at intervals.

8. The bridge bearing that is easy to replace according to claim 2, characterized in that: The lower wedge (300) has a groove at one end facing the limiting component, and a rod (800) is fixed in the groove.

Images