Highway large-tonnage basin-type support
By designing a combination of the pot bearing body and the height adjustment mechanism, the problem of the traditional pot bearing height not being adjustable is solved, enabling convenient adjustment and improved seismic resistance, thereby enhancing the load-bearing strength and service life of highway bridges.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-24
- Publication Date
- 2026-04-03
AI Technical Summary
Traditional large-tonnage pot bearings for highways cannot be adjusted in height during installation, which limits their applicability. On-site adjustments are labor-intensive and resource-intensive, and it is difficult to ensure the consistency and stability of the height, thus affecting the construction progress and quality.
A large-tonnage pot bearing for highways was designed, comprising a pot bearing body and a height adjustment mechanism. The height of the bearing can be conveniently adjusted through the height adjustment mechanism. Combined with the seismic performance and flexible rotation characteristics of the pot bearing body, it can meet the height requirements of different construction scenarios.
It enables convenient adjustment of the height of pot bearings, improves the applicability and effectiveness, enhances seismic resistance and horizontal displacement capacity, and improves the load-bearing strength and service life of highway bridges.
Smart Images
Figure CN224077956U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of pot bearing technology, and in particular to a large-tonnage pot bearing for highways. Background Technology
[0002] Large-tonnage pot bearings for highways are key components used in highway bridges and large structures. They are primarily used to bear and transfer heavy loads while allowing the structure to undergo displacement and rotation under conditions such as temperature changes and earthquakes. Currently, large-tonnage pot bearings for highways are widely used in long-span highway bridges, expressway bridges, urban highway overpasses, and more.
[0003] In related technologies, although traditional large-tonnage pot bearings for highways can meet the basic requirements for bearing large tonnage loads, they still have at least the following shortcomings in actual use: When the large-tonnage pot bearing is installed as a whole between the pier and the highway bridge, the overall height of the large-tonnage pot bearing cannot be adjusted. Since the gap between the pier and the highway bridge is not exactly the same at different locations, different models and specifications of large-tonnage pot bearings for highways need to be used, which limits the scope of application and results in poor performance. Although some methods use on-site padding blocks, this method not only consumes a lot of manpower and resources, but also makes it difficult to ensure the consistency and stability of the height during the adjustment process. It cannot quickly meet the precise requirements for the bearing height in different construction scenarios, which seriously affects the construction progress and quality.
[0004] Therefore, we propose a large-tonnage pot bearing for highways to solve the above problems. Utility Model Content
[0005] The purpose of this application is to provide a large-tonnage pot bearing for highways, which allows for convenient adjustment of the overall height of the pot bearing to meet the requirements of the overall height of the pot bearing in different construction scenarios, thereby improving its applicability and performance. In addition, it has good seismic resistance, relatively large horizontal displacement and flexible rotation, which improves the load-bearing capacity of highway bridges and extends the overall service life of the pot bearing.
[0006] The above-mentioned technical objective of this application is achieved through the following technical solution: a large-tonnage pot bearing for highways, comprising a pot bearing body and a height adjustment mechanism. The pot bearing body includes a lower support plate, a bottom basin, a lower rubber plate, a middle steel plate, an upper rubber plate, an upper support plate, a stainless steel plate, and a polytetrafluoroethylene (PTFE) plate. The bottom basin is fixedly installed on the top of the lower support plate, the lower rubber plate is fixedly installed on the bottom inner wall of the bottom basin, the middle steel plate is located on top of the lower rubber plate, the upper rubber plate is located on top of the middle steel plate, the top of the upper rubber plate extends to the outside of the bottom basin, the PTFE plate is fixedly connected to the top of the upper rubber plate, the upper support plate is located above the upper rubber plate, the stainless steel plate is fixedly installed at the bottom of the upper support plate, the PTFE plate and the stainless steel plate are in sliding contact, and the height adjustment mechanism is located at the bottom of the pot bearing body, which is used to adjust the height position of the pot bearing body.
[0007] A further configuration of this application is as follows: the main body of the basin-type support also includes a lower arc-shaped wear-resistant plate, an upper arc-shaped wear-resistant plate, and a sealing ring. A lower groove is provided on the top of the lower rubber plate, and the lower arc-shaped wear-resistant plate is fixedly installed in the lower groove. The upper surface of the lower arc-shaped wear-resistant plate is in rotatable contact with the lower surface of the intermediate steel plate. An upper groove is provided on the bottom of the upper rubber plate, and the upper arc-shaped wear-resistant plate is fixedly installed in the upper groove. The lower surface of the upper arc-shaped wear-resistant plate is in rotatable contact with the upper surface of the intermediate steel plate. The sealing ring is fixedly installed on the inner side wall of the basin, and the inner ring of the sealing ring is in rotatable sealing fit with the outer side wall of the upper rubber plate.
[0008] A further configuration of this application is as follows: the lower surface of the intermediate steel plate is a downwardly convex arc-shaped surface structure, the upper surface of the lower arc-shaped wear-resistant plate is a centrally concave arc-shaped surface structure, the lower surface of the intermediate steel plate is in contact with the upper surface of the lower arc-shaped wear-resistant plate, the upper surface of the intermediate steel plate is an upwardly convex arc-shaped surface structure, the lower surface of the upper arc-shaped wear-resistant plate is a centrally concave arc-shaped surface structure, and the upper surface of the intermediate steel plate is in contact with the lower surface of the upper arc-shaped wear-resistant plate.
[0009] A further feature of this application is that bolt holes are provided at the four corners of both the lower support plate and the upper support plate.
[0010] A further configuration of this application is as follows: the height adjustment mechanism includes a connecting seat, a bearing base plate, a fixing ring, multiple lead screws, multiple handles, multiple bearing seats, and multiple triangular support blocks. The connecting seat is fixedly installed at the bottom of the lower support plate. The bottom of the connecting seat has multiple triangular grooves that are evenly spaced and distributed in a ring. The bearing base plate is located below the connecting seat. The fixing ring is fixedly installed at the top of the bearing base plate. The bottom of the connecting seat extends into the fixing ring. Multiple lead screws are threaded through the fixing ring and are evenly spaced and distributed in a ring. Multiple handles are fixedly installed at the ends of the corresponding lead screws located outside the fixing ring. Multiple bearing seats are rotatably installed at the ends of the corresponding lead screws located inside the fixing ring. Multiple triangular support blocks are fixedly installed on the side of the corresponding bearing seat away from the lead screw. The tops of the multiple triangular support blocks are slidably installed in the corresponding triangular grooves.
[0011] A further provision of this application is that the bottom surface of the triangular support block is in sliding contact with the top surface of the supporting base plate.
[0012] A further feature of this application is that: guide crossbars are fixedly installed on the side of the multiple triangular support blocks away from the connecting seat, and multiple guide holes are provided on the side wall of the fixing ring in an equally spaced ring pattern, with one end of each guide crossbar sliding through the corresponding guide hole.
[0013] This application includes at least one of the following beneficial technical effects:
[0014] This application utilizes a height adjustment mechanism to facilitate the adjustment of the overall height of the pot bearing, meeting the requirements of the overall height of the pot bearing in different construction scenarios, and improving its applicability and performance.
[0015] This application improves the overall seismic performance of the pot bearing by utilizing the pot bearing body. It can effectively absorb and reduce vibration and shock, and can achieve relatively large horizontal displacement. It can adapt to the expansion and contraction deformation of highway bridges caused by factors such as temperature changes and concrete creep. It also allows the pot bearing to rotate flexibly when bearing load, effectively adapting to the rotation deformation requirements of highway bridges under various stress conditions. This improves the load-bearing strength of highway bridges and extends the service life of the pot bearing as a whole. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the main view structure of this embodiment.
[0017] Figure 2 This is a bottom view of the structure in this embodiment.
[0018] Figure 3 This is a schematic diagram of the main sectional view of the pot bearing.
[0019] Figure 4This is a schematic diagram of the three-dimensional structure of the middle steel plate.
[0020] Figure 5 This is a schematic diagram of the three-dimensional structure of the lower arc-shaped wear-resistant plate.
[0021] Figure 6 This is a schematic diagram of the three-dimensional structure of the upper arc-shaped wear-resistant plate.
[0022] Figure 7 This is a schematic diagram of the main structure of the height adjustment mechanism.
[0023] Figure 8 This is a three-dimensional structural diagram of the connector.
[0024] Figure 9 This is a partial three-dimensional structural diagram of a pot bearing.
[0025] Figure 10 This is a schematic diagram of the main sectional view of a pot bearing.
[0026] In the diagram, 1. Basin support body; 101. Lower support plate; 102. Base basin; 103. Lower rubber plate; 104. Middle steel plate; 105. Upper rubber plate; 106. Upper support plate; 107. Stainless steel plate; 108. Polytetrafluoroethylene plate; 109. Lower arc-shaped wear-resistant plate; 110. Upper arc-shaped wear-resistant plate; 111. Sealing ring; 2. Height adjustment mechanism; 201. Connecting seat; 202. Triangular slide groove; 203. Bearing base plate; 204. Fixing ring; 205. Screw; 206. Handle; 207. Shaft seat; 208. Triangular support block; 209. Guide crossbar. Detailed Implementation
[0027] The technical solution of this application will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0028] See Figures 1-10 This application provides a large-tonnage pot bearing for highways, including a pot bearing body 1 and a height adjustment mechanism 2, wherein:
[0029] The main body 1 of the pot bearing includes a lower support plate 101, a bottom basin 102, a lower rubber plate 103, a middle steel plate 104, an upper rubber plate 105, an upper support plate 106, a stainless steel plate 107, and a polytetrafluoroethylene (PTFE) plate 108. The bottom basin 102 is fixedly installed on the top of the lower support plate 101. The lower rubber plate 103 is fixedly installed on the bottom inner wall of the bottom of the bottom basin 102. The middle steel plate 104 is located on top of the lower rubber plate 103. The upper rubber plate 105 is located on top of the middle steel plate 104, and the top of the upper rubber plate 105 extends to the outside of the bottom basin 102. The PTFE plate 108 is fixedly connected to the top of the upper rubber plate 105. The upper support plate 106 is located above the upper rubber plate 105, and the stainless steel plate 107 is fixedly installed on the bottom of the upper support plate 106. The PTFE plate 108 and stainless steel plate 107 slide in contact. The lower rubber plate 103 and upper rubber plate 105 improve the overall seismic performance of the pot bearing, effectively absorbing and reducing vibrations and shocks, protecting the highway bridge structure from the effects of external forces such as earthquakes and wind. Through the low-friction sliding between the PTFE plate 108 and stainless steel plate 107, a relatively large horizontal displacement can be achieved, adapting to the expansion and contraction deformation of the highway bridge caused by factors such as temperature changes and concrete creep, and improving the load-bearing strength of the highway bridge. The pot bearing body 1 also includes a lower arc-shaped wear-resistant plate 109, an upper arc-shaped wear-resistant plate 110, and a sealing ring 111. The top of the lower rubber plate 103 has a lower groove, and the lower arc-shaped wear-resistant plate 109 is fixedly installed in the lower groove. Inside, the upper surface of the lower arc-shaped wear-resistant plate 109 rotates in contact with the lower surface of the middle steel plate 104. An upper groove is provided at the bottom of the upper rubber plate 105, and the upper arc-shaped wear-resistant plate 110 is fixedly installed in the upper groove. The lower surface of the upper arc-shaped wear-resistant plate 110 rotates in contact with the upper surface of the middle steel plate 104. The lower surface of the middle steel plate 104 has a downwardly convex arc-shaped surface structure, while the upper surface of the lower arc-shaped wear-resistant plate 109 has a centrally concave arc-shaped surface structure. The lower surface of the middle steel plate 104 fits against the upper surface of the lower arc-shaped wear-resistant plate 109. The upper surface of the middle steel plate 104 has an upwardly convex arc-shaped surface structure, while the lower surface of the upper arc-shaped wear-resistant plate 110 has a centrally concave arc-shaped surface structure. The upper surface of the middle steel plate 104 and the lower surface of the upper arc-shaped wear-resistant plate 110... With the surfaces of the lower arc-shaped wear-resistant plate 109 in rotatable contact with the lower surface of the middle steel plate 104, and the upper arc-shaped wear-resistant plate 110 in rotatable contact with the upper surface of the middle steel plate 104, and the special structure of the upper and lower surfaces of the middle steel plate 104 in contact with the corresponding arc-shaped wear-resistant plates, the pot bearing can rotate flexibly when bearing loads. This effectively adapts to the rotational deformation requirements of highway bridges under various stress conditions, ensuring the rationality of the stress distribution of the highway bridge structure and further improving the load-bearing strength of the highway bridge. The sealing ring 111 is fixedly installed on the inner wall of the bottom pot 102. The inner ring of the sealing ring 111 rotates and seals with the outer wall of the upper rubber plate 105. The sealing ring 111 effectively prevents dust, rainwater, and other impurities from entering the interior of the bottom pot 102, reducing wear on internal components.To extend the overall service life of the pot bearing, the lower arc-shaped wear-resistant plate 109 and the upper arc-shaped wear-resistant plate 110 are installed. This effectively prevents wear caused by contact between the middle steel plate 104 and the lower rubber plate 103 and upper rubber plate 105, thereby improving the overall service life of the pot bearing.
[0030] In this embodiment, bolt holes are provided at the four corners of the lower support plate 101 and the four corners of the upper support plate 106, so as to facilitate the use of bolts to firmly connect the lower support plate 101 and the upper support plate 106 to the bridge structure and the pier structure respectively, thereby improving installation efficiency and stability.
[0031] In this embodiment, the height adjustment mechanism 2 is located at the bottom of the pot bearing body 1. The height adjustment mechanism 2 is used to adjust the height position of the pot bearing body 1. The height adjustment mechanism 2 includes a connecting seat 201, a bearing base plate 203, a fixing ring 204, multiple lead screws 205, multiple handles 206, multiple shaft seats 207, and multiple triangular support blocks 208. The connecting seat 201 is fixedly installed at the bottom of the lower support plate 101. The bottom of the connecting seat 201 has multiple triangular grooves 202 that are evenly spaced and distributed in a ring. The bearing base plate 203 is located below the connecting seat 201. The fixing ring 204 is fixedly installed at the top of the bearing base plate 203. The bottom of the connecting seat 201 extends into the fixing ring 204. The multiple lead screws 205 are all threaded through the fixing ring 204 and are evenly spaced and distributed in a ring. The multiple handles 206 are respectively fixedly installed on the corresponding lead screws. 205 is located at one end outside the fixed ring 204. Multiple bearing seats 207 are rotatably installed at the corresponding ends of the lead screw 205 located inside the fixed ring 204. Multiple triangular support blocks 208 are fixedly installed on the side of the corresponding bearing seat 207 away from the lead screw 205. The tops of the multiple triangular support blocks 208 are slidably installed in the corresponding triangular grooves 202. The operator can rotate the handle 206 to drive the lead screw 205 to rotate, which will drive the triangular support blocks 208 to slide in the triangular grooves 202 through the bearing seats 207. This allows for convenient adjustment of the height position of the connecting seat 201, which in turn drives the height position of the pot bearing body 1 to be adjusted. This achieves the adjustment of the overall height of the large-tonnage pot bearing for highways, meeting the overall height requirements of the large-tonnage pot bearing for highways under different construction scenarios, and improving the applicability and performance.
[0032] In this embodiment, the bottom surface of the triangular support block 208 slides in contact with the top surface of the bearing base plate 203. When adjusting the position of the triangular support block 208, it can ensure that the triangular support block 208 moves smoothly. Guide crossbars 209 are fixedly installed on the side of the multiple triangular support blocks 208 away from the connecting seat 201. Multiple guide holes are provided on the side wall of the fixing ring 204 in a ring with equal spacing. One end of the multiple guide crossbars 209 slides through the corresponding guide holes, which plays a guiding role in the process of adjusting the support height, ensuring that the triangular support block 208 slides smoothly, thereby making the entire support height adjustment process stable and reliable.
[0033] With the above structure, the large-tonnage pot bearing for highways provided in this application is installed by placing the entire pot bearing between the bridge pier and the highway bridge. Depending on the gap between the bridge pier and the highway bridge, the operator rotates multiple handles 206 in the height adjustment mechanism 2. The handles 206 are fixedly connected to the lead screw 205. Therefore, the rotation of the handles 206 drives the lead screw 205 to rotate synchronously. Since the thread of the lead screw 205 passes through the fixing ring 204, when the lead screw 205 rotates, according to the thread transmission principle and under the guidance of the guide crossbar 209, the lead screw 205 pushes the triangular support block 208 to move linearly through the bearing seat 207, causing the triangular support block 208 to move linearly within the connecting seat 2. The connecting seat 201 slides within the triangular groove 202 at the bottom of the 01, thereby changing the relative distance between the connecting seat 201 and the bearing base plate 203. The connecting seat 201 gradually rises, causing the connecting seat 201 to drive the pot bearing body 1 to rise. When the upper bearing plate 106 in the pot bearing body 1 rises to a position that tightly contacts the bottom of the highway bridge where support is needed, the height adjustment requirement is met. Then, subsequent bolt fixing and pouring processes are carried out to securely fix the pot bearing between the pier and the highway bridge for use. This achieves convenient adjustment of the overall height of the pot bearing, meets the requirements of the overall height of the pot bearing in different construction scenarios, and improves the applicability and effectiveness.
[0034] During use, when the highway bridge is under load, the load is transferred to the PTFE plate 108 and the upper rubber plate 105 through the upper bearing plate 106, and then to the lower rubber plate 103 and the lower bearing plate 101 through the intermediate steel plate 104. The arrangement of the lower rubber plate 103 and the upper rubber plate 105 improves the overall seismic performance of the pot bearing, effectively absorbing and reducing vibrations and shocks, protecting the highway bridge structure from the effects of external forces such as earthquakes and wind. Through the low-friction sliding between the PTFE plate 108 and the stainless steel plate 107, relatively large horizontal displacement can be achieved, adapting to the expansion and contraction deformation of the highway bridge caused by factors such as temperature changes and concrete creep, improving the load-bearing strength of the highway bridge. Furthermore, due to the upper surface of the intermediate steel plate 104... The middle steel plate 104 has an upwardly convex arc-shaped surface structure that fits against the lower surface of the upper arc-shaped wear-resistant plate 110, and the two are in rotational contact. The lower surface of the middle steel plate 104 has a downwardly convex arc-shaped surface structure that fits against the upper surface of the lower arc-shaped wear-resistant plate 109, and the two are in rotational contact. Under the action of rotational loads on highway bridges, this special arc-shaped surface fitting and rotational contact design allows the middle steel plate 104 to rotate flexibly relative to the upper arc-shaped wear-resistant plate 110 and the lower arc-shaped wear-resistant plate 109. This allows the pot bearing as a whole to rotate flexibly when bearing loads, effectively adapting to the rotational deformation requirements of highway bridges under various stress conditions, ensuring the rationality of the stress on the highway bridge structure, further improving the load-bearing strength of the highway bridge, and extending the overall service life of the pot bearing.
Claims
1. A highway large-tonnage pot support, characterized in that, The application relates to a basin support body (1) and a height adjusting mechanism (2), wherein the basin support body (1) comprises a lower support plate (101), a bottom basin (102), a lower rubber plate (103), a middle steel plate (104), an upper rubber plate (105), an upper support plate (106), a stainless steel plate (107) and a polytetrafluoroethylene plate (108), the bottom basin (102) is fixedly installed on the top of the lower support plate (101), the lower rubber plate (103) is fixedly installed on the inner wall of the bottom of the bottom basin (102), the middle steel plate (104) is arranged on the top of the lower rubber plate (103), the upper rubber plate (105) is arranged on the top of the middle steel plate (104), the top of the upper rubber plate (105) extends to the outside of the bottom basin (102), the polytetrafluoroethylene plate (108) is fixedly connected on the top of the upper rubber plate (105), the upper support plate (106) is located above the upper rubber plate (105), the stainless steel plate (107) is fixedly installed on the bottom of the upper support plate (106), and the polytetrafluoroethylene plate (108) is in sliding contact with the stainless steel plate (107). The height adjusting mechanism (2) is arranged on the bottom of the basin support body (1) and is used for adjusting the height position of the basin support body (1).
2. The highway large-tonnage pot bearing according to claim 1, characterized in that: The basin support body (1) further comprises a lower arc-shaped wear-resistant plate (109), an upper arc-shaped wear-resistant plate (110) and a sealing ring (111), the top of the lower rubber plate (103) is provided with a lower groove, the lower arc-shaped wear-resistant plate (109) is fixedly installed in the lower groove, the upper surface of the lower arc-shaped wear-resistant plate (109) is in rotating contact with the lower surface of the middle steel plate (104), the bottom of the upper rubber plate (105) is provided with an upper groove, the upper arc-shaped wear-resistant plate (110) is fixedly installed in the upper groove, the lower surface of the upper arc-shaped wear-resistant plate (110) is in rotating contact with the upper surface of the middle steel plate (104), and the sealing ring (111) is fixedly installed on the inner side wall of the bottom basin (102) and is in rotating sealing cooperation with the outer side wall of the upper rubber plate (105).
3. The highway large-tonnage pot bearing according to claim 2, characterized in that: The lower surface of the middle steel plate (104) is in a downward convex arc surface structure, the upper surface of the lower arc-shaped wear-resistant plate (109) is in a central downward concave arc surface structure, the lower surface of the middle steel plate (104) is attached to the upper surface of the lower arc-shaped wear-resistant plate (109), the upper surface of the middle steel plate (104) is in an upward convex arc surface structure, the lower surface of the upper arc-shaped wear-resistant plate (110) is in a central upward concave arc surface structure, and the upper surface of the middle steel plate (104) is attached to the lower surface of the upper arc-shaped wear-resistant plate (110).
4. The highway large-tonnage pot bearing according to claim 1, wherein: The four corners of the lower support plate (101) and the four corners of the upper support plate (106) are provided with bolt holes.
5. The highway large tonnage pot bearing of claim 1, wherein: The cushion adjusting mechanism (2) comprises a connecting seat (201), a bearing bottom plate (203), a fixing ring (204), a plurality of lead screws (205), a plurality of handles (206), a plurality of shaft seats (207) and a plurality of triangular supporting blocks (208), the connecting seat (201) is fixedly installed at the bottom of the lower support plate (101), a plurality of triangular sliding grooves (202) are arranged at the bottom of the connecting seat (201) in the form of equidistant annular distribution, the bearing bottom plate (203) is located below the connecting seat (201), the fixing ring (204) is fixedly installed at the top of the bearing bottom plate (203), the bottom of the connecting seat (201) extends into the fixing ring (204), the plurality of lead screws (205) are threaded through the fixing ring (204), and the plurality of lead screws (205) are arranged in the form of equidistant annular distribution, the plurality of handles (206) are respectively fixedly installed at one end of the corresponding lead screw (205) located outside the fixing ring (204), the plurality of shaft seats (207) are respectively rotationally installed at one end of the corresponding lead screw (205) located inside the fixing ring (204), the plurality of triangular supporting blocks (208) are respectively fixedly installed at one side of the corresponding shaft seat (207) away from the lead screw (205), and the top of the plurality of triangular supporting blocks (208) is respectively slidably installed in the corresponding triangular sliding groove (202).
6. The highway large-tonnage pot bearing according to claim 5, characterized in that: The bottom surface of the triangular supporting block (208) is in sliding contact with the top surface of the bearing bottom plate (203).
7. The highway large-tonnage pot bearing according to claim 5, characterized in that: A guide cross rod (209) is fixedly installed at one side of the triangular supporting block (208) away from the connecting seat (201), a plurality of guide holes are arranged on the side wall of the fixing ring (204) in the form of equidistant annular distribution, and one end of the plurality of guide cross rods (209) respectively slidably penetrates the corresponding guide hole.