Bridge lead rubber bearing

Abstract

The utility model provides a kind of bridge lead rubber bearing, belong to bridge technical field, including upper connecting plate and lower connecting plate, further include, protective component, protective component includes fixed ring, fixed ring bottom surface is fixedly connected with lower connecting plate top surface;Protective component further includes protection assembly, protection assembly is set between upper connecting plate and lower connecting plate;Protective component further includes cleaning assembly, cleaning assembly is set to the outer wall of protection assembly.The utility model is protected to support component by the protection assembly in protective component using protective component, avoid the corrosion of support component due to external environment when long time use, can effectively prolong the support of support component to bridge, and through cleaning assembly, the cleaning of impurity on the outer wall of inner protective ring can be realized, dust, sand, rainwater residual dirt and other impurities attached above protection assembly can be scraped, avoid long-term accumulation of impurity to form stubborn dirt.

Description

Technical Field

[0001] This utility model belongs to the field of bridge technology, specifically relating to a bridge lead-core rubber bearing. Background Technology

[0002] In the field of bridge engineering, bearings, as the core force-transmitting components connecting the main beam of a bridge and the piers, bear the key functions of transmitting vertical loads, adapting to structural deformation (such as temperature deformation, concrete shrinkage and creep), and resisting horizontal loads (such as earthquake and wind loads). Their performance directly determines the safety, stability and durability of the bridge structure. In the prior art, such as Chinese Patent Publication No. CN120925413A, there is an upper support structure and a lower support structure that matches the upper support structure. The upper support structure and the lower support structure are connected by SMA ropes. The upper support structure includes an upper cover plate, with a first limiting block vertically arranged around the lower part of the upper cover plate, and a third limiting block vertically arranged at the end of the first limiting block away from the upper cover plate. The lower support structure includes a lower cover plate arranged parallel to the upper cover plate, with a lead-core rubber support arranged in the middle between the upper cover plate and the lower cover plate. A second limiting block is vertically arranged around the upper part of the lower cover plate, and a fourth limiting block is vertically arranged at the end of the second limiting block away from the lower cover plate. By combining SMA ropes, a multi-stage limiting mechanism, and traditional lead-core rubber supports, the problems of existing supports in vertical tensile strength, horizontal multi-stage energy consumption, stiffness adjustment, and poor maintainability are solved.

[0003] Although the above-mentioned solutions have the advantages mentioned above, their disadvantages are that dust, sand, leaves and other debris floating in the air can easily adhere directly to the outer wall of the rubber sleeve during the use of the bearing. Furthermore, the deposits caused by wind and sun exposure can also cause physical scratches on the surface of the component. Long-term accumulation will damage the surface integrity of the rubber material, accelerate rubber aging and cracking, and shorten its service life. Therefore, a bridge lead core rubber bearing is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a lead-core rubber bearing for bridges, which aims to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A bridge lead-core rubber bearing includes an upper connecting plate and a lower connecting plate, and the bridge lead-core rubber bearing also includes... The protective component includes a retaining ring, the bottom surface of which is fixedly connected to the top surface of the lower connecting plate; The protective component further includes a protective assembly, which is disposed between the upper connecting plate and the lower connecting plate; The protective component further includes a cleaning assembly, which is disposed on the outer wall of the protective component; The support component includes a rubber sleeve disposed between the upper connecting plate and the lower connecting plate. The inner side of the rubber sleeve is provided with multiple sets of rubber pads and multiple sets of connecting steel plates.

[0006] In a preferred embodiment of this utility model, the protective component includes an outer protective ring, the bottom surface of which is fixedly connected to the top surface of the lower connecting plate, an inner protective ring slidably disposed on the inner side of the outer protective ring, the top surface of the inner protective ring being fixedly connected to the bottom surface of the upper connecting plate, and a sealing ring fixedly disposed on the inner side of the outer protective ring, the inner side of the sealing ring being slidably and sealingly connected to the outer wall of the inner protective ring.

[0007] As a preferred embodiment of the present invention, the protective component further includes multiple dampers and multiple compression springs, the outer walls of the multiple dampers and the outer walls of the multiple compression springs are respectively hinged to the inner side of the fixed ring, and the outer walls of the multiple dampers and the outer walls of the multiple compression springs are all hinged to the outer wall of the outer protective ring.

[0008] In a preferred embodiment of this utility model, the cleaning assembly includes a cleaning ring, the inner side of which contacts the outer wall of the inner protective ring, the bottom surface of which is slidably connected to the top surface of the outer protective ring, and a limiting rail is fixedly provided on the top surface of the outer protective ring, with the inner side of the cleaning ring slidably connected to the outer wall of the limiting rail.

[0009] As a preferred embodiment of this utility model, the cleaning assembly further includes a lifting ring, the inner side of which is slidably connected to the outer wall of the outer protective ring, a guide rail is fixedly provided on the top surface of the lifting ring, and two connecting brackets are slidably provided on the outer wall of the guide rail, with the outer walls of the two connecting brackets being fixedly connected to the outer wall of the inner protective ring.

[0010] As a preferred embodiment of this utility model, the outer wall of the outer protective ring is provided with two wedge-shaped grooves, and the outer walls of the two connecting frames are respectively fixedly provided with two wedge-shaped blocks, and the outer walls of the two wedge blocks are respectively slidably connected to the inner walls of the two wedge grooves.

[0011] In a preferred embodiment of this utility model, a fixing sleeve is fixedly provided on the outer wall of the lifting ring, and a control frame is slidably provided on the inner side of the fixing sleeve. The outer wall of the control frame is fixedly connected to the top surface of the cleaning ring.

[0012] As a preferred embodiment of this utility model, the cleaning assembly further includes a guide ring, the outer wall of which has a guide groove, and a guide rod is slidably disposed on the inner side of the guide groove, the outer wall of the guide rod being fixedly connected to the outer wall of the lifting ring.

[0013] As a preferred embodiment of this utility model, the support component further includes two silicone sealing plates, the outer walls of the two silicone sealing plates are fixedly connected to the inner side of the rubber sleeve, and a lead core is fixedly provided on the inner side of the two silicone sealing plates. The inner sides of the multiple sets of rubber pads and the multiple sets of connecting steel plates are slidably connected to the outer wall of the lead core.

[0014] As a preferred embodiment of this utility model, the support component further includes two sets of connecting bolts. The two sets of connecting bolts extend through the outer walls of the upper connecting plate and the lower connecting plate to the inner sides of the two silicone sealing plates on the same side. The outer walls of the two sets of connecting bolts are threadedly connected to the inner sides of the two silicone sealing plates.

[0015] Compared with the prior art, the beneficial effects of this utility model are: 1. The protective components are designed to protect the support components, preventing corrosion caused by the external environment during long-term use. This effectively extends the support of the support components for the bridge. Furthermore, the cleaning components can clean impurities from the outer wall of the inner protective ring, removing dust, sand, rainwater residue, and other impurities attached to the protective components, thus preventing the long-term accumulation of impurities and the formation of stubborn dirt.

[0016] 2. By using the set support components, the rubber pads elastically compress and buffer the impact force under vertical loads, and the connecting steel plates enhance the vertical bearing stiffness to prevent excessive deformation of the rubber pads. When the bridge experiences horizontal displacement or vibration, the lead core slides relative to the rubber pads and connecting steel plates, absorbing vibration energy through plastic deformation. The elastic restoring force of the rubber pads assists in resetting, achieving horizontal shock absorption and buffering, and improving the overall shock absorption effect and service life of the support. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall internal structure of this utility model; Figure 3 This is a schematic diagram of the internal structure of the protective component of this utility model; Figure 4 This is a schematic diagram of the protective component structure in the protective part of this utility model; Figure 5 For the present utility model Figure 2Enlarged structural diagram of area A in the middle; Figure 6 For the present utility model Figure 3 A magnified structural diagram of area B in the middle.

[0018] In the diagram: 10. Upper connecting plate; 11. Lower connecting plate; 20. Fixing ring; 21. Protective assembly; 211. Damper; 212. Compression spring; 213. Outer protective ring; 214. Sealing ring; 215. Inner protective ring; 22. Cleaning assembly; 221. Cleaning ring; 222. Connecting frame; 223. Guide ring; 224. Guide rod; 225. Fixing sleeve; 226. Control frame; 227. Wedge block; 228. Guide rail; 229. Lifting ring; 2210. Guide groove; 30. Rubber sleeve; 31. Silicone sealing plate; 32. Rubber pad; 33. Connecting steel plate; 34. Lead core; 35. Connecting bolt. Detailed Implementation

[0019] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0020] Example 1 Reference Figures 1-6 As shown, this is the first embodiment of the present invention, which provides a bridge lead-core rubber bearing, including an upper connecting plate 10 and a lower connecting plate 11.

[0021] In addition, the bridge lead-core rubber bearing also includes protective components. These components protect the bearing components from corrosion caused by the external environment during prolonged use, effectively extending the bearing's support for the bridge. The specific design is as follows: The protective component includes a retaining ring 20, the bottom surface of which is fixedly connected to the top surface of the lower connecting plate 11; Meanwhile, the protective components also include a protective component 21, which is disposed between the upper connecting plate 10 and the lower connecting plate 11. The protective component 21 can effectively block external impurities such as dust, sand, rainwater, and snow in the air from entering the interior of the support, prevent the rubber material from aging faster, significantly reduce the risk of performance degradation of the support due to external erosion, and extend the overall service life of the support. The protective component also includes a cleaning component 22, which is located on the outer wall of the protective component 21. Through its linkage design with the protective component 21, the cleaning component 22 can clean the impurities on the outer wall of the inner protective ring 215. It can scrape off the dust, sand, rainwater residue and other impurities attached to the top of the protective component 21, and prevent the impurities from accumulating and forming stubborn dirt over a long period of time.

[0022] Furthermore, the protective component 21 includes an outer protective ring 213, the bottom surface of which is fixedly connected to the top surface of the lower connecting plate 11. An inner protective ring 215 is slidably disposed on the inner side of the outer protective ring 213, the top surface of which is fixedly connected to the bottom surface of the upper connecting plate 10. A sealing ring 214 is fixedly disposed on the inner side of the outer protective ring 213, and the inner side of the sealing ring 214 is slidably and sealingly connected to the outer wall of the inner protective ring 215. The protective component 21 also includes multiple dampers 211 and multiple compression springs 212. The outer walls of the multiple dampers 211 and the multiple compression springs 212 are respectively hinged to the inner side of the fixed ring 20, and the outer walls of the multiple dampers 211 and the multiple compression springs 212 are all hinged to the outer wall of the outer protective ring 213.

[0023] Preferably, the cleaning assembly 22 includes a cleaning ring 221, the inner side of which contacts the outer wall of the inner protective ring 215, the bottom surface of which is slidably connected to the top surface of the outer protective ring 213, and a limit rail fixedly provided on the top surface of the outer protective ring 213. The inner side of the cleaning ring 221 is slidably connected to the outer wall of the limit rail. The cleaning assembly 22 also includes a lifting ring 229, the inner side of which is slidably connected to the outer wall of the outer protective ring 213, and a guide rail 228 fixedly provided on the top surface of the lifting ring 229. Two connecting brackets 222 are slidably provided on the outer wall of the guide rail 228, and the outer walls of both connecting brackets 222 are fixedly connected to the outer wall of the inner protective ring 215. The outer wall of the outer protective ring 213 has two openings. Two wedge-shaped grooves are provided, and two wedge-shaped blocks 227 are fixedly installed on the outer walls of the two connecting frames 222 respectively. The outer walls of the two wedge blocks 227 are slidably connected to the inner walls of the two wedge grooves respectively. A fixing sleeve 225 is fixedly installed on the outer wall of the lifting ring 229. A control frame 226 is slidably installed on the inner side of the fixing sleeve 225. The outer wall of the control frame 226 is fixedly connected to the top surface of the cleaning ring 221. The cleaning assembly 22 also includes a guide ring 223. The inner side of the guide ring 223 is fixedly connected to the outer wall of the outer protective ring 213. A guide groove 2210 is opened on the outer wall of the guide ring 223. A guide rod 224 is slidably installed on the inner side of the guide groove 2210. The outer wall of the guide rod 224 is fixedly connected to the outer wall of the lifting ring 229.

[0024] Example 2 Reference Figure 2As shown, this is the second embodiment of the present invention. Unlike the previous embodiment, this embodiment provides a support component. The support component includes a rubber sleeve 30, which is disposed between the upper connecting plate 10 and the lower connecting plate 11. The inner side of the rubber sleeve 30 is provided with multiple sets of rubber pads 32 and multiple sets of connecting steel plates 33. The support component also includes two silicone sealing plates 31. The outer walls of the two silicone sealing plates 31 are fixedly connected to the inner side of the rubber sleeve 30. Lead cores 34 are fixedly disposed on the inner side of the two silicone sealing plates 31. The inner sides of the multiple sets of rubber pads 32 and multiple sets of connecting steel plates 33 are slidably connected to the outer walls of the lead cores 34. The support component also includes two sets of connecting bolts 35. The two sets of connecting bolts 35 extend through the outer walls of the upper connecting plate 10 and the lower connecting plate 11 to the inner side of the two silicone sealing plates 31 on one side. The outer walls of the two sets of connecting bolts 35 are threadedly connected to the inner sides of the two silicone sealing plates 31.

[0025] Working principle: The bridge lead-core rubber bearing is fixed to the bridge superstructure via an upper connecting plate 10 and to the bridge foundation via a lower connecting plate 11, forming a stable load-bearing connection structure. The bearing component serves as the core load-bearing and vibration damping unit. Its rubber sleeve 30 encloses multiple sets of alternately stacked rubber pads 32, connecting steel plates 33, and lead core 34. It is connected to the silicone sealing plate 31 by two sets of connecting bolts 35, which pass through the upper connecting plate 10 and the lower connecting plate 11 respectively. This ensures the bearing component is firmly fixed to the upper connecting plate 10 and the lower connecting plate 11, ensuring the stable transmission of bridge load. The two silicone sealing plates 31 not only seal and protect the internal structure of the rubber sleeve 30, but also help fix the lead core 34, ensuring its stable energy dissipation. The protective components form all-round protection around the support components. In the protective assembly 21, the outer protective ring 213 and the inner protective ring 215 achieve a sealed sliding fit through the sealing ring 214 to block external impurities. At the same time, multiple dampers 211 and compression springs 212 hinged between the fixed ring 20 and the outer protective ring 213 buffer the horizontal impact force through damping energy dissipation and elastic reset when the bridge vibrates or displaces, thereby reducing the additional stress on the support components. The cleaning component 22 achieves self-cleaning synchronously with the support displacement. When the bridge vibration causes the upper connecting plate 10 and the inner protective ring 215 to move up and down, the inner protective ring 215 drives the guide rail 228 and the lifting ring 229 to slide along the outer wall of the outer protective ring 213 through the two connecting frames 222. When the lifting ring 229 moves up and down, it can drive the guide rod 224 to move synchronously. When the guide rod 224 moves up and down, the lifting ring 229 can rotate under the action of the guide groove opened on the surface of the guide ring 223. During the rotation of the lifting ring 229, the cleaning ring 221 can rotate synchronously with the lifting ring 229 through the cooperation of the fixed sleeve 225 and the control frame 226, thereby scraping off the impurities on the outer wall of the inner protective ring 215 and avoiding affecting the sealing performance of the sealing ring 214 and the smooth sliding of the protective component 21.

[0026] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A bridge lead-core rubber bearing, comprising an upper connecting plate (10) and a lower connecting plate (11), characterized in that: The bridge lead-core rubber bearing also includes: The protective component includes a fixing ring (20), the bottom surface of which is fixedly connected to the top surface of the lower connecting plate (11); The protective component further includes a protective assembly (21), which is disposed between the upper connecting plate (10) and the lower connecting plate (11); The protective component further includes a cleaning assembly (22), which is disposed on the outer wall of the protective component (21); The support component includes a rubber sleeve (30), which is disposed between the upper connecting plate (10) and the lower connecting plate (11). The inner side of the rubber sleeve (30) is provided with multiple sets of rubber pads (32) and multiple sets of connecting steel plates (33).

2. A bridge lead-core rubber bearing according to claim 1, characterized in that: The protective component (21) includes an outer protective ring (213), the bottom surface of which is fixedly connected to the top surface of the lower connecting plate (11), an inner protective ring (215) is slidably disposed on the inner side of the outer protective ring (213), the top surface of which is fixedly connected to the bottom surface of the upper connecting plate (10), a sealing ring (214) is fixedly disposed on the inner side of the outer protective ring (213), and the inner side of the sealing ring (214) is slidably and sealingly connected to the outer wall of the inner protective ring (215).

3. A bridge lead-core rubber bearing according to claim 2, characterized in that: The protective assembly (21) also includes a plurality of dampers (211) and a plurality of compression springs (212). The outer walls of the plurality of dampers (211) and the outer walls of the plurality of compression springs (212) are respectively hinged to the inner side of the fixed ring (20). The outer walls of the plurality of dampers (211) and the outer walls of the plurality of compression springs (212) are all hinged to the outer wall of the outer protective ring (213).

4. A bridge lead-core rubber bearing according to claim 3, characterized in that: The cleaning component (22) includes a cleaning ring (221), the inner side of the cleaning ring (221) is in contact with the outer wall of the inner protective ring (215), the bottom surface of the cleaning ring (221) is slidably connected to the top surface of the outer protective ring (213), a limiting rail is fixedly provided on the top surface of the outer protective ring (213), and the inner side of the cleaning ring (221) is slidably connected to the outer wall of the limiting rail.

5. A bridge lead-core rubber bearing according to claim 4, characterized in that: The cleaning component (22) also includes a lifting ring (229), the inner side of which is slidably connected to the outer wall of the outer protective ring (213), a guide rail (228) is fixedly provided on the top surface of the lifting ring (229), and two connecting brackets (222) are slidably provided on the outer wall of the guide rail (228), and the outer walls of the two connecting brackets (222) are fixedly connected to the outer wall of the inner protective ring (215).

6. A bridge lead-core rubber bearing according to claim 5, characterized in that: The outer protective ring (213) has two wedge-shaped grooves on its outer wall, and two wedge-shaped blocks (227) are fixedly installed on the outer walls of the two connecting frames (222). The outer walls of the two wedge-shaped blocks (227) are slidably connected to the inner walls of the two wedge-shaped grooves.

7. A bridge lead-core rubber bearing according to claim 6, characterized in that: A fixed sleeve (225) is fixedly provided on the outer wall of the lifting ring (229), and a control frame (226) is slidably provided on the inner side of the fixed sleeve (225). The outer wall of the control frame (226) is fixedly connected to the top surface of the cleaning ring (221).

8. A bridge lead-core rubber bearing according to claim 5, characterized in that: The cleaning component (22) also includes a guide ring (223), the inner side of the guide ring (223) is fixedly connected to the outer wall of the outer protective ring (213), the outer wall of the guide ring (223) is provided with a guide groove (2210), the inner side of the guide groove (2210) is slidably provided with a guide rod (224), and the outer wall of the guide rod (224) is fixedly connected to the outer wall of the lifting ring (229).

9. A bridge lead-core rubber bearing according to claim 1, characterized in that: The support component also includes two silicone sealing plates (31), the outer walls of the two silicone sealing plates (31) are fixedly connected to the inner side of the rubber sleeve (30), and lead cores (34) are fixedly provided on the inner side of the two silicone sealing plates (31). The inner sides of multiple sets of rubber pads (32) and multiple sets of connecting steel plates (33) are slidably connected to the outer wall of the lead cores (34).

10. A bridge lead-core rubber bearing according to claim 9, characterized in that: The support component also includes two sets of connecting bolts (35). The two sets of connecting bolts (35) extend through the outer walls of the upper connecting plate (10) and the lower connecting plate (11) to the inner side of the two silicone sealing plates (31) respectively. The outer walls of the two sets of connecting bolts (35) are threadedly connected to the inner sides of the two silicone sealing plates (31) respectively.

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