Height-adjustable bridge support

Abstract

The invention relates to the technical field of bridge connecting equipment, in particular to a height-adjustable bridge support which comprises an upper supporting seat and a lower supporting seat, a buffer seat is mounted between the upper supporting seat and the lower supporting seat, a prefabricated pedestal is arranged below the lower supporting seat, and a leveling assembly is arranged between the lower supporting seat and the prefabricated pedestal. The upper portion of the lower supporting seat is provided with a storage bin used for storing the buffering seat, the lower portion of the storage bin is provided with an adjusting base used for adjusting the buffering seat, and the upper portion of the storage bin is provided with protective baffles located on the two sides of the buffering seat. The height of the buffer seat is secondarily adjusted through the adjusting base, the height of the whole support is finally adjusted by adjusting the buffer seat and the lower supporting seat step by step, and compared with a conventional mode of adjusting the thickness of a padstone, data measurement does not need to be carried out on site, compensation of the height difference can be completed more quickly, and the working efficiency is improved. The construction efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of bridge connection equipment, and in particular to a height-adjustable bridge support. Background Art

[0002] In modern bridge engineering, bridge bearings, as key components connecting the bridge superstructure and substructure (such as bridge piers), not only bear the important functions of transferring loads and adapting to deformation, but are also directly related to the overall safety, stability and durability of the bridge. With the continuous advancement of bridge construction technology and the increasing complexity of bridge design, the performance requirements for bridge bearings are also increasing, especially in dealing with different geological conditions, temperature changes, load changes, etc., the bearings need to show higher adaptability and flexibility.

[0003] Traditional bridge supports are mostly fixed in design, and once installed, their height is difficult to adjust. This design often fails to cope with the gap changes between the bridge and the piers caused by construction errors, foundation settlement, thermal expansion and contraction, etc. To solve this problem, construction workers usually need to take additional remedial measures, such as adding gaskets, repositioning installation, etc., which not only increases the difficulty and cost of construction, but may also affect the overall structural safety of the bridge and reduce construction efficiency.

[0004] In view of this, the market is in urgent need of a new type of bridge bearing that can overcome the above defects, namely a height-adjustable bridge bearing. The core of the design of this type of bearing lies in its height adjustment mechanism, which allows the height of the bearing to be flexibly adjusted according to actual conditions during the bridge assembly process to adapt to small or significant gap changes between the bridge and the pier. This innovation not only greatly improves construction flexibility, but also significantly improves work efficiency and reduces rework and resource waste caused by height mismatch.

[0005] Height-adjustable bridge bearings usually use precise mechanical structures or hydraulic / pneumatic systems to achieve height adjustment. For example, a Chinese patent (CN114411536A) discloses a displacement-measurable height-adjustable bridge bearing, which includes an upper support plate and a lower support plate. The upper support plate and the lower support plate are connected by a shock-absorbing seat. The lower support plate is provided with a connecting hole for the anchor bolt to pass through. The bottom of the anchor bolt is pre-embedded in the column. An adjusting nut is sleeved on the anchor bolt, and the adjusting nut is located below the lower support plate; the lower support plate is connected to the column by a post-cast cushion stone, and a steel mesh with a supporting function is provided inside the cushion stone; the anchor bolt is located outside the cushion stone; the upper support plate is connected to the beam, and a polytetrafluoroethylene plate is provided between the upper support plate and the shock-absorbing seat, and a rubber block that is compressed but not rebounded and is used to record the maximum displacement position is provided on the polytetrafluoroethylene plate.

[0006] Although the height of the support can be adjusted, when the gap distance is large, the supporting performance of the support itself will be reduced, which will sharply accelerate the risk of support damage and pose a hidden danger to construction safety. Summary of the invention

[0007] In order to solve the problem raised in the background technology that when the gap between the bridge and the pier is too large, the support performance of the bearing itself will decrease after the height adjustment of the bearing is increased, an embodiment of the present invention provides a height-adjustable bridge bearing, which can be adjusted by secondary adjustment, so that a single adjustment is guaranteed to be within a certain distance, and the superposition of two adjustments can increase the adjustment range of the bearing to meet the construction requirements without affecting the stability of the bearing.

[0008] In order to achieve the above-mentioned purpose, the embodiment of the present invention specifically adopts the following technical scheme: a height-adjustable bridge bearing, comprising an upper support seat and a lower support seat, a buffer seat is arranged between the upper support seat and the lower support seat, a prefabricated cushion seat is arranged below the lower support seat, a leveling assembly is arranged between the lower support seat and the prefabricated cushion seat, a storage bin for placing the buffer seat is arranged on the upper part of the lower support seat, an adjustment base for adjusting the buffer seat is arranged on the lower part of the storage bin, and protective baffles located on both sides of the buffer seat are arranged on the upper part of the storage bin.

[0009] As a further improvement of the above technical solution: The leveling assembly comprises a positioning column arranged in a prefabricated cushion seat, a threaded rod is arranged on the upper part of the positioning column, and an adjusting nut for adjusting the height of the lower support seat is arranged on the threaded rod.

[0010] A threaded hole is arranged in the middle of the positioning column, a limiting screw is arranged in the threaded hole, and a limiting nut located above the lower support seat is arranged at the upper end of the limiting screw.

[0011] The number of the leveling components is four and they are respectively arranged at the four corners of the lower support seat.

[0012] The adjustment base includes a support plate, two symmetrically distributed legs are arranged below the support plate, the legs are inclined and the upper support plate is hinged, an adjustment block is arranged at the bottom, and a guide groove corresponding to the position of the adjustment block is arranged at the bottom of the storage bin.

[0013] A limiting boss located outside the guide groove is provided at the bottom of the storage bin, a push plate is provided on the limiting boss, a limiting block extending into the guide groove and abutting against the adjustment block is provided on the inner wall of the push plate, and an adjustment bolt extending to the outside of the storage bin is provided on the outer wall of the push plate.

[0014] Guide columns are arranged on both sides of the support plate, and avoidance grooves corresponding to the positions of the guide columns are arranged on the side walls of the storage bin.

[0015] A buffer module is arranged at the bottom of the avoidance groove, and a buffer spring is arranged at the lower part of the buffer module.

[0016] The inner side of the protective baffle is in contact with the buffer seat, a transmission block is arranged on the outer side wall, and an extension plate located on the outer side of the protective baffle is arranged at the lower part of the upper support seat.

[0017] A guide slope is arranged on the inner side wall of the extension plate, and the thickness of the guide slope gradually decreases from top to bottom. One end of the transmission block is connected to the protective baffle, and the other end is arranged with an abutment slope used in conjunction with the guide slope.

[0018] The beneficial effects of the embodiments of the present invention are as follows: the height-adjustable bridge bearing comprises an upper supporting seat and a lower supporting seat, a buffer seat is installed between the upper supporting seat and the lower supporting seat, a prefabricated cushion seat is provided under the lower supporting seat, a leveling assembly is provided between the lower supporting seat and the prefabricated cushion seat, a storage bin for placing the buffer seat is provided on the upper part of the lower supporting seat, an adjusting base for adjusting the buffer seat is provided on the lower part of the storage bin, and protective baffles located on both sides of the buffer seat are provided on the upper part of the storage bin, the height of the lower supporting seat can be adjusted for the first time through the leveling assembly, and the height of the buffer seat can be adjusted for the second time through the adjusting base, and the height adjustment of the entire bearing can be finally achieved by adjusting the buffer seat and the lower supporting seat in steps, and when the height deviation of the bridge pier and the bridge body occurs at the construction site, the error between the bridge and the bridge body can be compensated by adjusting the height of the bearing, and compared with the conventional method of adjusting the thickness of the pad stone, there is no need to perform data measurement on site, and the height difference can be compensated more quickly, thereby improving construction efficiency; Through the dual height adjustment of the leveling component and the adjustable base, the distance of each adjustment can be controlled. The height adjustment range of the support can be expanded by superimposing the two. Without affecting the overall support performance of the support, more usage scenarios can be met. The inner side of the protective baffle is fitted with the buffer seat, a transmission block is provided on the outer wall of the protective baffle, and the lower part of the upper support seat is provided with an extension plate located on the outer side of the protective baffle. When the extension plate deflects inward, it disperses the pressure and evenly pushes the protective baffle inward, so that the force can be evenly distributed on the buffer seat, thereby extending the service life of the buffer seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 A top view of the present invention; Figure 3 for Figure 2Section view along AA; Figure 4 for Figure 2 Sectional view along BB; Figure 5 It is a structural schematic diagram of the leveling component in the present invention; Figure 6 A schematic diagram of the structure of the adjustable base in the present invention (without the support plate); Figure 7 A top view of the adjustable base in the present invention (with the support plate omitted); Figure 8 It is a structural schematic diagram of the transmission block in the present invention; Fig. 9 is a side view of the protective baffle in the present invention; Fig.10 It is a schematic diagram of the distribution structure of the protective baffle and the transmission block in the present invention.

[0020] In the figure: 1. upper support seat; 2. lower support seat; 3. buffer seat; 4. prefabricated cushion seat; 5. storage compartment; 6. adjustment base; 7. protective baffle; 8. positioning column; 9. threaded rod; 10. threaded hole; 11. limit screw; 12. limit nut; 13. support plate; 14. support leg; 15. adjustment block; 16. guide groove; 17. limit boss; 18. push plate; 19. limit block; 20. adjustment bolt; 21. guide column; 22. avoidance groove; 23. buffer module; 24. buffer spring; 25. transmission block; 26. extension plate; 27. guide ramp; 28. abutment slope; 29. ​​adjustment nut. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0022] like Figure 1-10As shown, the height-adjustable bridge bearing of this embodiment includes an upper supporting seat 1 and a lower supporting seat 2, a buffer seat 3 is installed between the upper supporting seat 1 and the lower supporting seat 2, a prefabricated cushion seat 4 is provided under the lower supporting seat 2, and a leveling component is provided between the lower supporting seat 2 and the prefabricated cushion seat 4, a storage bin 5 for placing the buffer seat 3 is provided on the upper part of the lower supporting seat 2, an adjusting base 6 for adjusting the buffer seat 3 is provided on the lower part of the storage bin 5, and a protective baffle 7 located on both sides of the buffer seat 3 is provided on the upper part of the storage bin 5. The height of the lower supporting seat 2 can be adjusted for the first time through the leveling component, and then the height of the buffer seat 3 can be adjusted for the second time through the adjusting base 6. By adjusting the buffer seat 3 and the lower supporting seat 2 in steps, the height adjustment of the entire bearing is finally achieved. When the height deviation of the pier and the bridge body occurs at the construction site, the error between the bridge and the bridge body is compensated by adjusting the height of the bearing. Compared with the conventional method of adjusting the thickness of the cushion stone, there is no need to measure data on site, and the height difference can be compensated more quickly, thereby improving construction efficiency.

[0023] The leveling assembly includes a positioning column 8 installed in the prefabricated cushion 4, and a threaded rod 9 is provided on the upper part of the positioning column 8. An adjusting nut 29 for adjusting the height of the lower support seat 2 is provided on the threaded rod 9. The design of the adjusting nut 29 can quickly adjust the height of the lower support seat 2 while ensuring that the entire support is in a horizontal state. During the leveling operation, a spirit level can be used to measure the overall deflection data of the support to assist in the leveling operation.

[0024] A threaded hole 10 is provided in the middle of the positioning column 8, and a limit screw 11 is provided inside the threaded hole 10. The upper end of the limit screw 11 is provided with a limit nut 12 located above the lower support seat 2. The function of the limit nut 12 is to limit the lifting height of the lower support seat 2. During specific operation, a spirit level is used to measure data, and then the four limit nuts 12 are adjusted to be located in the same horizontal plane, and then the lower support seat 2 is adjusted to a position abutting the limit nut 12 using the adjusting nut. If downward adjustment is required, first adjust the position of the adjusting nut 29, and also use a spirit level or other measuring tools to ensure that the four adjusting nuts 29 are located in the same horizontal plane, and then tighten the limit nut 12 downward to lock and limit the lower support seat 2.

[0025] There are four leveling components, which are respectively installed at the four corners of the lower support seat 2. After the adjustment is completed, the bottom of the support can be leveled or the overall height of the support can be adjusted.

[0026] The adjustment base 6 includes a support plate 13, and two symmetrically distributed support legs 14 are provided below the support plate 13. The support legs 14 are designed to be inclined and the upper part is hinged to the support plate 13, and the lower part is provided with an adjustment block 15. The bottom of the storage bin 5 is provided with a guide groove 16 corresponding to the position of the adjustment block 15. The adjustment block 15 slides in the guide groove 16 to drive the support plate 13 to move longitudinally, and finally realizes the height adjustment of the buffer seat 3. In cooperation with the leveling component, the height of the entire support is adjusted for the second time. The overall height of the support is adjusted by a step-by-step adjustment method. During on-site construction, the installation work can be quickly completed according to the reserved distance between the pier and the bridge body.

[0027] A limiting boss 17 located on the outside of the guide groove 16 is provided at the bottom of the storage bin 5, and a push plate 18 is provided on the limiting boss 17. A limiting block 19 extending into the guide groove 16 and abutting against the adjusting block 15 is provided on the inner side wall of the push plate 18. A bite interface is provided at the connection between the limiting block 19 and the adjusting block 15 to ensure that there is no deflection at the connection between the two. A rear buffer pad is covered at the bite interface to avoid a gap after hard friction between the two, resulting in a slight deflection on the upper surface of the support plate 13. An adjusting bolt 20 extending to the outside of the storage bin 5 is installed on the outer side wall of the push plate 18. The design of the adjusting bolt 20 can adjust the distance of the push plate 18 on the limiting boss 17, change the position of the adjusting block 15 in the guide groove 16, and finally achieve a change in the height of the support plate 13.

[0028] Vertically designed guide columns 21 are provided on both sides of the support plate 13, and avoidance grooves 22 corresponding to the positions of the guide columns 21 are opened on the inner wall of the storage bin 5. When the support plate 13 moves longitudinally, the guide columns 21 and the avoidance grooves 22 can play a guiding role, and on the basis of guiding the side edges of the support plate 13 and the side walls of the storage bin 5, the stability of the support plate 13 during longitudinal displacement is further enhanced.

[0029] A buffer module 23 is provided at the bottom of the avoidance groove 22 , and a buffer spring 24 is provided at the lower part of the buffer module 23 . The buffer module is made of rubber material, and there are multiple buffer springs 24 for space avoidance and energy absorption.

[0030] The inner side of the protective baffle 7 is fitted with the buffer seat 3, and a transmission block 25 is provided on the outer wall of the protective baffle 7. The lower part of the upper support seat 1 is provided with an extension plate 26 located on the outer side of the protective baffle 7. In order to improve the sealing performance of the storage bin 5 and the buffer seat 3, the position of the extension plate 26 is designed to be on the outer side of the storage bin 5. At this time, it is necessary to open a through groove corresponding to the position of the transmission block 25 on the side wall of the storage bin 5 so that the transmission block 25 and the extension plate 26 can fit together. The number of transmission blocks 25 is multiple and evenly distributed along the length direction of the protective baffle 7. Multiple transmission blocks 25 pass toward one end of the protective baffle 7. After the mounting plates are connected, a transmission group is formed. A plurality of transmission groups distributed along the height direction of the protective baffle 7 are provided on the side wall of the protective baffle 7. The length of the transmission block 25 in each transmission group gradually decreases from top to bottom. When the number of transmission groups is multiple, the number of transmission blocks 25 in each transmission group is at least two, and they are symmetrically distributed with the center line of the protective baffle 7 as the axis. Compared with the design of multiple transmission blocks 25 on each mounting plate, this design can reduce the number of transmission blocks 25, and at the same time can disperse the pressure when the extension plate 26 deviates inward, and evenly push the protective baffle 7 inward.

[0031] A guide slope 27 is provided on the inner side wall of the extension plate 26 , and the thickness of the guide slope 27 gradually decreases from top to bottom. One end of the transmission block 25 is connected to the protective baffle 7 , and the other end is provided with an abutting slope 28 used in conjunction with the guide slope 27 .

[0032] Working principle / assembly process of this solution: During the assembly process, if the gap between the bridge and the pier is too small or too large, the height of the support body needs to be adjusted. During the adjustment process, the adjustment base 6 is used first to complete it. If the adjustment of the adjustment base 6 cannot meet the gap difference, the leveling component is used to complete the secondary height adjustment. After the installation is completed, if the bridge body expands or vibrates during use, the upper support seat 1 will swing with the bridge body. At this time, the extension plate 26 will apply pressure to the protective baffle 7, and the protective baffle 7 will distribute the pressure to the buffer seat 3. The function of the protective baffle 7 is to evenly disperse the extrusion force to the buffer seat 3 after being squeezed. Compared with the existing buffer seat 3 which is only locally deformed after being stressed, it can avoid the phenomenon of local damage of the buffer seat 3 due to long-term local stress. The design of the protective baffle 7 can effectively solve this problem, so that the force can be evenly distributed on the buffer seat 3, thereby extending the service life of the buffer seat 3.

[0033] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0034] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] The term "comprise" or any other similar term is intended to cover a non-exclusive inclusion, such that a process, article, or apparatus / device that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, article, or apparatus / device.

[0036] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A height-adjustable bridge support, comprising an upper support seat (1) and a lower support seat (2), wherein a buffer seat (3) is arranged between the upper support seat (1) and the lower support seat (2), characterized in that: A prefabricated cushion seat (4) is arranged below the lower support seat (2), and a leveling component is arranged between the lower support seat (2) and the prefabricated cushion seat (4); The upper portion of the lower support seat (2) is provided with a storage bin (5) for placing the buffer seat (3), the lower portion of the storage bin (5) is provided with an adjustment base (6) for adjusting the buffer seat (3), and the upper portion of the storage bin (5) is provided with protective baffles (7) located on both sides of the buffer seat (3).

2. The height-adjustable bridge support according to claim 1, characterized in that: The leveling assembly comprises a positioning column (8) arranged in a prefabricated cushion seat (4), a threaded rod (9) being arranged on the upper part of the positioning column (8), and an adjusting nut for adjusting the height of the lower support seat (2) being arranged on the threaded rod (9).

3. The height-adjustable bridge support according to claim 2, characterized in that: A threaded hole (10) is provided in the middle of the positioning column (8), a limiting screw (11) is provided inside the threaded hole (10), and a limiting nut (12) located above the lower support seat (2) is provided at the upper end of the limiting screw (11).

4. The height-adjustable bridge support according to claim 3, characterized in that: The number of the leveling components is four and they are respectively arranged at the four corners of the lower support seat (2).

5. The height-adjustable bridge support according to claim 1, characterized in that: The adjustment base (6) comprises a support plate (13), two symmetrically distributed support legs (14) are arranged below the support plate (13), the support legs (14) are tilted and hinged to the upper support plate (13), an adjustment block (15) is arranged at the lower part, and a guide groove (16) corresponding to the position of the adjustment block (15) is arranged at the bottom of the storage bin (5).

6. The height-adjustable bridge support according to claim 5, characterized in that: The bottom of the storage bin (5) is provided with a limiting boss (17) located outside the guide groove (16); a push plate (18) is provided on the limiting boss (17); a limiting block (19) extending into the guide groove (16) and abutting against the adjustment block (15) is provided on the inner side wall of the push plate (18); and an adjustment bolt (20) extending to the outside of the storage bin (5) is provided on the outer side wall of the push plate (18).

7. The height-adjustable bridge support according to claim 5, characterized in that: Guide columns (21) are provided on both sides of the support plate (13), and avoidance grooves (22) corresponding to the positions of the guide columns (21) are provided on the side walls of the storage bin (5).

8. The height-adjustable bridge support according to claim 7, characterized in that: A buffer module (23) is provided at the bottom of the avoidance groove (22), and a buffer spring (24) is provided at the bottom of the buffer module (23).

9. The height-adjustable bridge support according to claim 1, characterized in that: The inner side of the protective baffle (7) is in contact with the buffer seat (3), a transmission block (25) is provided on the outer side wall, and an extension plate (26) located outside the protective baffle (7) is provided at the lower part of the upper support seat (1).

10. The height-adjustable bridge support according to claim 1, characterized in that: A guide slope (27) is provided on the inner side wall of the extension plate (26), and the thickness of the guide slope (27) gradually decreases from top to bottom. One end of the transmission block (25) is connected to the protective baffle (7), and the other end is provided with an abutment slope (28) used in conjunction with the guide slope (27).

Images