Shock insulation rubber support easy to replace
By designing easily replaceable seismic isolation rubber bearings and adopting an upper fixed plate, top plate, and bottom plate structure, combined with limiting components and vertical height adjustment sliding components, the problems of limited space and deflection in the replacement of LNG storage tank seismic isolation rubber bearings have been solved, achieving simple construction and low impact on the superstructure.
Patent Information
- Application Number
- CN202422979768.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-04
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-04
AI Technical Summary
The replacement of LNG storage tank vibration isolation rubber bearings faces challenges such as limited operating space, difficulty in controlling bearing deflection and jacking height, resulting in high construction difficulty and significant impact on the superstructure.
An easily replaceable seismic isolation rubber bearing was designed, including an upper fixed plate, a top plate, and a bottom plate. It is equipped with a seismic isolation rubber bearing, a limiting component, and a vertical height adjustment sliding assembly. The bearing can be easily replaced through horizontal and vertical sliding pairs, and the height of the top plate can be adjusted using wedge-shaped height adjustment blocks and clamps.
It enables simple construction within a limited space, reduces construction difficulty, minimizes the impact on the superstructure, and allows for easy replacement of supports with a simple structure.
Smart Images
Figure CN223498553U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of seismic isolation rubber bearings, specifically, it relates to an easily replaceable seismic isolation rubber bearing. Background Technology
[0002] In recent years, under the promotion of governments at all levels, seismic isolation technology has developed rapidly. With the increasing number of seismic isolation buildings, the market for seismic isolation buildings has continued to expand. In order to improve the seismic reliability of LNG storage tanks during their service life, many storage tanks have adopted seismic isolation technology. As the number of large LNG storage tanks built and their service life increases, the seismic isolation bearings of LNG storage tanks will be damaged and aged, and replacement will become an inevitable requirement. Unlike the replacement of seismic isolation rubber bearings in building construction, the replacement of seismic isolation rubber bearings of LNG storage tanks has some special problems. For example, (1) LNG storage tanks are densely arranged, the distance between the upper and lower foundations of the seismic isolation layer is small, and the operating space is narrow, which is not conducive to the entry and exit of large equipment. (2) The concrete in contact with the LNG storage tank and the bearing undergoes thermal shrinkage, which causes the installed bearing to exhibit centripetal deflection. (3) Under the action of the upper vertical load, the seismic isolation rubber bearing undergoes vertical compression deformation. How to reduce the jacking height of the replacement bearing and reduce the impact of jacking on the upper structure? Utility Model Content
[0003] To solve the above problems, the present invention adopts the following technical solution:
[0004] An easily replaceable seismic isolation rubber bearing includes:
[0005] The upper fixing plate, top plate, and bottom plate are arranged sequentially from top to bottom;
[0006] A seismic isolation rubber bearing is disposed between the upper fixed plate and the top plate; wherein the top of the seismic isolation rubber bearing is slidably connected to the upper fixed plate, and the bottom of the seismic isolation rubber bearing abuts against the top of the top plate.
[0007] Multiple limiting components are provided on the lower side of the upper fixing plate and are evenly distributed around the vibration isolation rubber bearing for fixing the vibration isolation rubber bearing.
[0008] A vertical height adjustment sliding component is disposed between the top plate and the bottom plate, and is used to adjust the height of the top plate.
[0009] Furthermore, a horizontal sliding pair is provided between the upper fixed plate and the vibration isolation rubber bearing; wherein, the horizontal sliding pair is slidably connected to the upper fixed plate and fixedly connected to the vibration isolation rubber bearing.
[0010] Furthermore, a first sliding surface is provided on the lower side of the upper fixed plate, and the horizontal sliding pair is a wear-resistant sliding plate; the horizontal sliding pair is located on the first sliding surface of the upper fixed plate.
[0011] Furthermore, the first sliding surface of the upper fixed plate is made of stainless steel;
[0012] The horizontal sliding pair is made of one of the following materials: polytetrafluoroethylene, modified polytetrafluoroethylene, and ultra-high molecular weight polyethylene.
[0013] Furthermore, the vertical height adjustment sliding assembly includes a wedge-shaped height adjustment block and a clamp for fastening the wedge-shaped height adjustment block; the bottom of the top plate is connected to the top of the bottom plate, and a groove matching the wedge-shaped height adjustment block is provided at the connection between the top plate and the bottom plate.
[0014] The wedge-shaped height adjustment block is inserted into the groove, and the clamp is located at the opening of the groove.
[0015] Furthermore, the inner wall of the groove is also provided with a vertical height adjustment sliding pair to facilitate the horizontal movement of the wedge-shaped height adjustment block.
[0016] Furthermore, a second sliding surface is provided at the contact point between the wedge-shaped height adjustment block and the groove.
[0017] Furthermore, the second sliding surface of the upper fixed plate is made of stainless steel;
[0018] The vertical height adjustment sliding pair is made of one of the following materials: polytetrafluoroethylene, modified polytetrafluoroethylene, and ultra-high molecular weight polyethylene.
[0019] The beneficial effects of this utility model are:
[0020] 1. The easily replaceable structure enables single-point jacking, avoiding the large workload caused by multi-point jacking of the tank and reducing construction difficulty.
[0021] 2. Convenient construction, simple operation, and can be carried out even in limited spaces.
[0022] 3. The support structure is simple and easy to manufacture. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the structure of an easily replaceable vibration isolation rubber bearing according to the present invention;
[0024] In the diagram: 1. Upper anchoring assembly; 2. Upper fixing plate; 3. Limiting baffle; 4. Anchoring bolt; 5. Vibration isolation rubber bearing; 6. Clamp; 7. Wedge-shaped height adjustment block; 8. Top plate; 9. Bottom plate; 10. Vertical height adjustment sliding pair; 11. Lower anchoring assembly; 12. Connecting bolt; 13. Horizontal moving sliding pair. Detailed Implementation
[0025] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0026] Example 1
[0027] refer to Figure 1 An easily replaceable seismic isolation rubber bearing, comprising:
[0028] The upper fixing plate 2, the top plate 8, and the bottom plate 9 are arranged sequentially from top to bottom;
[0029] The seismic isolation rubber bearing 5 is disposed between the upper fixed plate 2 and the top plate 8; wherein, the top of the seismic isolation rubber bearing 5 is slidably connected to the upper fixed plate 2, and the bottom 9 of the seismic isolation rubber bearing 5 abuts against the top of the top plate 8.
[0030] Multiple limiting components are provided on the lower side of the upper fixing plate 2 and are evenly distributed around the seismic isolation rubber bearing 5 to fix the seismic isolation rubber bearing 5.
[0031] A vertical height adjustment sliding component is installed between the top plate 8 and the bottom plate 9 to adjust the height of the top plate 8.
[0032] In this embodiment, the limiting component is a limiting baffle 3, and four limiting baffles are provided, which are distributed around the vibration isolation rubber bearing.
[0033] In this embodiment, the upper fixing plate 2 is connected to the limiting baffle 3 through the upper anchoring component 1.
[0034] Preferably, a horizontal sliding pair 13 is provided between the upper fixed plate 2 and the seismic isolation rubber bearing 5; wherein, the horizontal sliding pair 13 is slidably connected to the upper fixed plate 2 and fixedly connected to the seismic isolation rubber bearing 5.
[0035] In this embodiment, the vibration isolation rubber bearing 5 is connected to the horizontal sliding pair 13 via connecting bolts 12.
[0036] Preferably, a first sliding surface is provided on the lower side of the upper fixed plate 2, and the horizontal sliding pair 13 is a wear-resistant sliding plate; the horizontal sliding pair 13 is located on the first sliding surface of the upper fixed plate 2.
[0037] Preferably, the first sliding surface of the upper fixed plate 2 is made of stainless steel;
[0038] The horizontal sliding pair 13 is made of one of the following materials: polytetrafluoroethylene, modified polytetrafluoroethylene, and ultra-high molecular weight polyethylene.
[0039] Preferably, the vertical height adjustment sliding assembly includes a wedge-shaped height adjustment block 7 and a clamp 6 for fastening the wedge-shaped height adjustment block 7; the bottom of the top plate 8 is connected to the top of the bottom plate 9, and a groove matching the wedge-shaped height adjustment block 7 is provided at the connection between the top plate 8 and the bottom plate 9.
[0040] Among them, the wedge-shaped height adjustment block 7 is inserted into the groove, and the clamp 6 is set at the opening of the groove.
[0041] In this embodiment, the wedge-shaped height adjustment block 7 is connected to the top plate 8 and the bottom plate 9 through a lower anchoring assembly.
[0042] Preferably, the inner wall of the groove is also provided with a vertical height adjustment sliding pair 10 to facilitate the horizontal movement of the wedge-shaped height adjustment block 7.
[0043] Preferably, a second sliding surface is provided at the contact point between the wedge-shaped height adjustment block 7 and the groove.
[0044] Preferably, the second sliding surface of the upper fixed plate 2 is made of stainless steel;
[0045] The vertical height adjustment sliding pair 10 is made of one of the following materials: polytetrafluoroethylene, modified polytetrafluoroethylene, and ultra-high molecular weight polyethylene.
[0046] Working principle: When replacing the support, a support mechanism is arranged below the tank to prevent pressure on the support. The upper anchor bolts and limit baffles are removed, as are the clamps and lower anchor bolts. The wedge-shaped height adjustment blocks are pulled to both sides. During the movement of the wedge-shaped height adjustment blocks, the support moves downwards under its own weight, and the horizontal sliding pair and vibration-damping rubber support separate from the tank. The old support is then removed. The new support is placed in the designated position. The wedge-shaped height adjustment blocks are inserted, at which point the top plate rises to the same height as the original support. The clamps and lower anchor bolts are installed, the support mechanism below the tank is removed, and the upper anchor bolts and limit baffles are installed.
[0047] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model are included within the protection scope of this utility model.
Claims
1. An easily replaceable vibration-damping rubber bearing, characterized in that, include: The upper fixing plate, top plate, and bottom plate are arranged sequentially from top to bottom; A seismic isolation rubber bearing is disposed between the upper fixed plate and the top plate; wherein the top of the seismic isolation rubber bearing is slidably connected to the upper fixed plate, and the bottom of the seismic isolation rubber bearing abuts against the top of the top plate. Multiple limiting components are provided on the lower side of the upper fixing plate and are evenly distributed around the vibration isolation rubber bearing for fixing the vibration isolation rubber bearing. A vertical height adjustment sliding component is disposed between the top plate and the bottom plate, and is used to adjust the height of the top plate.
2. The easily replaceable vibration-damping rubber bearing according to claim 1, characterized in that, A horizontal sliding pair is provided between the upper fixed plate and the seismic isolation rubber bearing; wherein, the horizontal sliding pair is slidably connected to the upper fixed plate and fixedly connected to the seismic isolation rubber bearing.
3. The easily replaceable vibration-damping rubber bearing according to claim 2, characterized in that, The lower side of the upper fixed plate is provided with a first sliding surface, and the horizontal sliding pair is a wear-resistant sliding plate; the horizontal sliding pair is located on the first sliding surface of the upper fixed plate.
4. The easily replaceable vibration-damping rubber bearing according to claim 3, characterized in that, The first sliding surface of the upper fixed plate is made of stainless steel; The horizontal sliding pair is made of one of the following materials: polytetrafluoroethylene, modified polytetrafluoroethylene, and ultra-high molecular weight polyethylene.
5. The easily replaceable vibration-damping rubber bearing according to claim 1, characterized in that, The vertical height adjustment sliding assembly includes a wedge-shaped height adjustment block and a clamp for fastening the wedge-shaped height adjustment block; the bottom of the top plate is connected to the top of the bottom plate, and a groove matching the wedge-shaped height adjustment block is provided at the connection between the top plate and the bottom plate. The wedge-shaped height adjustment block is inserted into the groove, and the clamp is located at the opening of the groove.
6. The easily replaceable vibration-damping rubber bearing according to claim 5, characterized in that, The inner wall of the groove is also provided with a vertical height adjustment sliding pair to facilitate the horizontal movement of the wedge-shaped height adjustment block.
7. The easily replaceable vibration-damping rubber bearing according to claim 6, characterized in that, A second sliding surface is provided at the contact point between the wedge-shaped height adjustment block and the groove.
8. The easily replaceable vibration-damping rubber bearing according to claim 7, characterized in that, The second sliding surface of the upper fixed plate is made of stainless steel; The vertical height adjustment sliding pair is made of one of the following materials: polytetrafluoroethylene, modified polytetrafluoroethylene, and ultra-high molecular weight polyethylene.