Bridge support structure with automatic leveling function

Abstract

The utility model discloses a bridge support structure with automatic leveling, comprising: support leveling unit, it includes upper seat board and the lower seat board below upper seat board, the opposite surface of upper seat board and lower seat board all are fixedly connected with curved surface column, the opposite surface of two curved surface columns all are the spherical surface of inward concave, the spherical surface of two curved surface columns is equipped with double -sided ball core in common sliding, limiting fixed unit, set between upper seat board and lower seat board, limiting fixed unit is used for fixed upper seat board and lower seat board and prevents double -sided ball core deflection. The utility model discloses through the cooperation of double -sided ball core and two curved surface columns, realize the two -way free deflection of upper seat board and lower seat board, thereby effectively expanded the movable range of support whole, when support is automatically leveled and aligns between bridge and pier, double -sided ball core and two curved surface columns between still can keep sufficient residual deflection space.

Description

Technical Field

[0001] This utility model relates to the field of bridge bearing technology, and in particular to a bridge bearing structure with automatic leveling. Background Technology

[0002] Bridge bearings are important structural components connecting the superstructure and substructure of a bridge. Located between the bridge and the bearing pad, they reliably transfer the loads and deformations (displacement and rotation) borne by the superstructure to the substructure. They are important force transmission devices for bridges. There are two types of bearings: fixed bearings and movable bearings. Commonly used bearing types in bridge engineering include: asphalt or flat plate bearings, plate rubber bearings, spherical bearings, steel bearings, and special bearings.

[0003] When the beam has a slope, the traditional method requires installing steel plates or supports that match the longitudinal slope of the bridge between the bottom of the beam and the bearing for leveling to ensure that the bearing acts vertically between the bridge and the pier. Although existing spherical bearings can use the spherical core to achieve adaptive deflection for inclined bridges or piers, keeping the top and bottom of the bearing horizontally aligned with the surface of the bridge or pier, these spherical bearings mostly adopt a single-sided spherical core structure. When the bridge or pier is in an inclined state, the single-sided spherical core bearing will deflect during the initial installation, occupying part of the movable space in advance, which will limit the deflection range of the bearing in the future, thus greatly reducing the upper limit of the bearing's deflection. Therefore, a bridge bearing structure with automatic leveling is proposed. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] In view of the problems existing in the current bridge bearing structure with automatic leveling, this utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide a bridge bearing structure with automatic leveling, which is suitable for solving the problem that when a bridge or pier is in an inclined state, the single-sided spherical core bearing will deflect during the initial installation, thereby occupying part of the movable space in advance, resulting in a limited range of deflection of the bearing in the later stage, thus greatly reducing the upper limit of the bearing's deflection.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a bridge bearing structure with automatic leveling, comprising:

[0008] The support leveling unit includes an upper support plate and a lower support plate located below the upper support plate. Curved columns are fixedly connected to the opposite surfaces of the upper support plate and the lower support plate. The opposite surfaces of the two curved columns are both inwardly concave spherical curved surfaces. A double-sided spherical core is slidably provided in the spherical curved surfaces of the two curved columns.

[0009] A limiting and fixing unit is disposed between the upper seat plate and the lower seat plate. The limiting and fixing unit is used to fix the upper seat plate and the lower seat plate and prevent the double-sided ball core from deflecting.

[0010] As a preferred embodiment of the bridge bearing structure with automatic leveling described in this utility model, the double-sided spherical core is flat and elliptical, and the spherical surface of the double-sided spherical core extends beyond the spherical surface of the curved column to expand the deflection area.

[0011] As a preferred embodiment of the bridge bearing structure with automatic leveling described in this utility model, a horizontal limiting ring is fixedly sleeved on the middle of the outer surface of the double-sided spherical core, and the horizontal limiting ring is used to limit the deflection angle of a single spherical surface of the double-sided spherical core.

[0012] As a preferred embodiment of the bridge support structure with automatic leveling described in this utility model, wherein: spherical sliding plates are fixedly connected to the spherical surfaces of the two curved columns, and the double-sided spherical core is slidably disposed between the two spherical sliding plates.

[0013] As a preferred embodiment of the bridge support structure with automatic leveling described in this utility model, the surface of the spherical sliding plate is coated with a wear-resistant and friction-reducing coating, and the surface of the double-sided spherical core is coated with lubricating oil.

[0014] As a preferred embodiment of the bridge bearing structure with automatic leveling described in this utility model, the limiting and fixing unit includes two L-shaped plates fixed to the bottom of the upper bearing plate by bolts, and two fixing plates are fixedly connected to the top of the lower bearing plate. The two L-shaped plates are respectively fixed to the two fixing plates by bolts.

[0015] As a preferred embodiment of the bridge bearing structure with automatic leveling described in this utility model, a rubber sleeve is fixed between the upper bearing plate and the upper bearing plate, and the curved column and the double-sided spherical core are both located inside the rubber sleeve. The rubber sleeve is used for dustproofing and waterproofing.

[0016] As a preferred embodiment of the bridge bearing structure with automatic leveling described in this utility model, a detachable spirit level is provided between the opposing surfaces of the upper bearing plate and the lower bearing plate, and the spirit level is used to measure the tilt angle of the upper bearing plate and the lower bearing plate.

[0017] The beneficial effects of this utility model are as follows: by cooperating with the double-sided spherical core and the two curved columns, the upper and lower seat plates can be freely deflected in both directions, thereby effectively expanding the overall range of motion of the support. After the support is automatically leveled and aligned between the bridge and the pier, sufficient remaining deflection space can still be reserved between the double-sided spherical core and the two curved columns to adapt to the load and deformation of the bridge. Attached Figure Description

[0018] 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:

[0019] Figure 1 This is a schematic diagram of the overall structure of the bridge bearing structure with automatic leveling proposed in this utility model.

[0020] Figure 2 This is a schematic diagram of the support leveling unit structure proposed in this utility model;

[0021] Figure 3 This is a schematic diagram showing the disassembled cross-section of the curved cylinder and spherical sliding plate proposed in this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 100. Support leveling unit; 101. Upper support plate; 102. Lower support plate; 103. Curved column; 104. Double-sided spherical core; 105. Horizontal limiting ring; 106. Spherical sliding plate;

[0024] 200. Limiting and fixing unit; 201. L-shaped plate; 202. Fixing plate; 203. Rubber sleeve; 204. Spirit bubble. Detailed Implementation

[0025] 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.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0028] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0029] Example 1

[0030] Reference Figures 1-3 This is the first embodiment of the present utility model, which provides a bridge bearing structure with automatic leveling, which expands the overall range of motion of the bearing. After the bearing is automatically leveled and aligned between the bridge and the pier, the bearing can still retain sufficient remaining deflection space. It includes: a bearing leveling unit 100 and a limiting and fixing unit 200.

[0031] The support leveling unit 100 includes an upper support plate 101 and a lower support plate 102 located below the upper support plate 101. Curved columns 103 are fixedly connected to the opposite surfaces of the upper support plate 101 and the lower support plate 102. The opposite surfaces of the two curved columns 103 are concave spherical curved surfaces. A double-sided spherical core 104 is slidably provided in the spherical curved surfaces of the two curved columns 103.

[0032] The limiting and fixing unit 200 is disposed between the upper seat plate 101 and the lower seat plate 102. The limiting and fixing unit 200 is used to fix the upper seat plate 101 and the lower seat plate 102 and prevent the double-sided ball core 104 from deflecting.

[0033] Multiple through holes are opened on the surfaces of the upper seat plate 101 and the lower seat plate 102 respectively. The upper seat plate 101 can be firmly connected to the bottom of the bridge by bolts and other fasteners, and the lower seat plate 102 is fixed to the top of the pier. The double-sided spherical core 104 is located between the two curved columns 103, which can realize the bidirectional free deflection of the upper seat plate 101 and the lower seat plate 102, thereby expanding the overall range of motion. The upper seat plate 101 and the lower seat plate 102 can be automatically leveled with the surface of the bridge and the pier respectively, and maintain relative horizontal alignment. Even after the support is installed and fixed, there is still sufficient remaining deflection space between the double-sided spherical core 104 and the curved column 103. The curved sliding structure composed of the curved column 103 and the double-sided spherical core 104 can flexibly adapt to the angular deformation generated by the beam.

[0034] Before installation on the bridge, the upper seat plate 101 and the lower seat plate 102 can be fixed in a horizontal state by using the limiting and fixing unit 200, thereby limiting the unnecessary deflection of the double-sided ball core 104 and avoiding wear of the double-sided ball core 104 due to accidental shaking during transportation and storage.

[0035] Example 2

[0036] Reference Figure 2 and Figure 3 This is the second embodiment of the present invention. Unlike the previous embodiment, the double-sided spherical core 104 is flat and elliptical, and the spherical surface of the double-sided spherical core 104 extends beyond the spherical surface of the curved cylinder 103 to expand the deflection area.

[0037] The double-sided spherical core 104 adopts a flat elliptical design, which can reduce the height of the double-sided spherical core 104, thereby reducing the distance between the upper seat plate 101 and the lower seat plate 102, so as to lower the center of gravity of the support and improve stability. The spherical surface of the double-sided spherical core 104 exceeds the spherical surface of the curved column 103, so that the double-sided spherical core 104 has a larger range of movement when rotating. When the bridge tilts due to factors such as temperature changes and uneven load, the double-sided spherical core 104 can adjust its deflection within a larger range.

[0038] Among them, a horizontal limiting ring 105 is fixedly sleeved in the middle of the outer surface of the double-sided spherical core 104. The horizontal limiting ring 105 is used to limit the deflection angle of a single spherical surface of the double-sided spherical core 104.

[0039] The horizontal limiting ring 105 constrains the deflection angle of the single spherical surface of the double-sided spherical core 104 by physical limiting. When the bridge bearing is deflected by force within the normal working range, the horizontal limiting ring 105 allows the double-sided spherical core 104 to rotate freely within a reasonable angle. Once the deflection angle approaches or reaches the preset safety threshold, the horizontal limiting ring 105 will contact the curved column 103 to prevent the double-sided spherical core 104 from deflecting excessively. This design can ensure that the bearing can automatically level itself within a certain range and avoid the double-sided spherical core 104 from slipping out of the curved column 103 or the component from being damaged due to excessive deflection.

[0040] Example 3

[0041] Reference Figure 2 and Figure 3 This is the third embodiment of the present invention. Unlike the previous embodiment, spherical sliding plates 106 are fixedly connected inside the spherical surfaces of the two curved columns 103, and the double-sided spherical core 104 is slidably disposed between the two spherical sliding plates 106.

[0042] The spherical sliding plate 106 is made of polytetrafluoroethylene (PTFE) sheet, and the double-sided spherical core 104 is sandwiched between the two spherical sliding plates 106. When subjected to the tilting force of the bridge superstructure, the double-sided spherical core 104 can slide freely along the curved surface of the spherical sliding plate 106. At the same time, the spherical sliding plate 106 can reduce the wear between the spherical sliding plate 106 and the curved column 103.

[0043] Specifically, the surface of the spherical skateboard 106 is coated with a wear-resistant and friction-reducing coating. The wear-resistant and friction-reducing coating reduces the surface roughness of the skateboard through special materials, thereby reducing the coefficient of friction with the double-sided spherical core 104. The surface of the double-sided spherical core 104 is coated with lubricating oil.

[0044] The lubricating oil is used to fill the micro gaps on the contact surface and form a lubricating film to reduce the frictional loss of the spherical slide plate 106 and the double-sided ball core 104, and to extend the service life of the spherical slide plate 106 and the double-sided ball core 104.

[0045] Example 4

[0046] Reference Figure 1 and Figure 2 This is the fourth embodiment of the present utility model. Unlike the previous embodiment, the limiting and fixing unit 200 includes two L-shaped plates 201 that are fixed to the bottom of the upper seat plate 101 by bolts, and two fixing plates 202 are fixedly connected to the top of the lower seat plate 102. The two L-shaped plates 201 are respectively fixed to the two fixing plates 202 by bolts.

[0047] When fixing the upper seat plate 101 and the lower seat plate 102, two L-shaped plates 201 are fixed to the top of the upper seat plate 101 with bolts. Then, the L-shaped plates 201 are fastened to the fixing plate 202 with bolts. This connection method can restrict the free deflection of the double-sided ball core 104 in the non-working state. Before the bridge bearing is installed in the predetermined position, the constraint can be released by removing the connecting bolts and removing the two L-shaped plates 201, releasing the degree of freedom of movement of the double-sided ball core 104 and restoring its automatic leveling function.

[0048] Among them, a rubber sleeve 203 is fixed between the upper seat plate 101 and the upper seat plate 101. The curved column 103 and the double-sided ball core 104 are both located inside the rubber sleeve 203. The rubber sleeve 203 is used for dustproof and waterproof.

[0049] The rubber sleeve 203 completely encloses the curved column 103, the double-sided spherical core 104, and the spherical sliding plate 106, forming a sealed protective space. The rubber sleeve 203 has good flexibility and sealing performance, which can effectively prevent external rainwater, dust, sand and other impurities from entering the internal structure, avoid particulate matter from embedding into the sliding contact surface of the double-sided spherical core 104 and the spherical sliding plate 106, and prevent damage to the components caused by friction from foreign objects.

[0050] In addition, a detachable spirit level 204 is provided between the opposing surfaces of the upper base plate 101 and the lower base plate 102. The multiple spirit levels 204 are detachable by means of threaded interfaces or snap-fit ​​structures. The spirit level 204 is used to measure the tilt angle between the upper base plate 101 and the lower base plate 102.

[0051] The bubble level 204 utilizes the central characteristic of liquid bubbles under gravity to monitor the tilt status of the bearing in real time. When the bridge bearing is in a horizontal state, the bubble is located in the center of the scale. If the upper bearing plate 101 or the lower bearing plate 102 tilts, the bubble will deviate from the center position. Through the bubble level 204, construction personnel can intuitively judge the tilt angle and direction of the bearing. When it is observed that the upper bearing plate 101 or the lower bearing plate 102 is seriously tilted, the upper bearing plate 101 or the lower bearing plate 102 can be appropriately leveled to ensure that sufficient remaining deflection space is reserved between the double-sided spherical core 104 and the curved column 103.

[0052] During use, before installation on the bridge, two L-shaped plates 201 are fixed to the top of the upper seat plate 101 with bolts, and the two L-shaped plates 201 are respectively fastened to the two fixed plates 202 with bolts to restrict the free deflection of the double-sided ball core 104. The rubber sleeve 203 can prevent rainwater and dust from entering the sliding contact surface and causing damage to the components. During installation, the two L-shaped plates 201 at the bottom of the upper seat plate 101 are removed to release the freedom of movement of the double-sided ball core 104. Then, the upper seat plate 101 and the lower seat plate 102 are firmly connected to the bottom of the bridge and the top of the pier with bolts. The upper seat plate 101 and the lower seat plate 102 can automatically level with the surface of the bridge and the pier respectively and maintain relative horizontal alignment.

[0053] During installation, the bubble level 204 monitors the overall tilt status. Based on the direction and scale value of the bubble's deviation from the center position, the construction personnel appropriately level the tilted upper plate 101 or lower plate 102 to ensure sufficient deflection space between the double-sided spherical core 104 and the curved column 103. When the beam undergoes angular deformation or tilting, the double-sided spherical core 104 can freely deflect in both directions along the curved surfaces of the two spherical sliding plates 106, and drive the upper plate 101 and lower plate 102 to automatically adjust their posture, keeping the support horizontally aligned with the surface of the bridge and pier. When the deflection angle approaches the safety threshold, the horizontal limiting ring 105 on the outer surface of the double-sided spherical core 104 contacts the curved column 103 to prevent excessive deflection, thus preventing the double-sided spherical core 104 from slipping or causing damage to the components.

[0054] 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 bearing structure with automatic leveling, characterized by, include: The support leveling unit (100) includes an upper support plate (101) and a lower support plate (102) located below the upper support plate (101). The upper support plate (101) and the lower support plate (102) are fixedly connected to curved columns (103) on their opposite surfaces. The opposite surfaces of the two curved columns (103) are both concave spherical curved surfaces. A double-sided spherical core (104) is slidably provided in the spherical curved surfaces of the two curved columns (103). A limiting and fixing unit (200) is disposed between the upper seat plate (101) and the lower seat plate (102). The limiting and fixing unit (200) is used to fix the upper seat plate (101) and the lower seat plate (102) and prevent the double-sided ball core (104) from deflecting.

2. The bridge bearing structure with automatic leveling according to claim 1, characterized in that: The double-sided spherical core (104) is flat and elliptical, and the spherical surface of the double-sided spherical core (104) extends beyond the spherical surface of the curved cylinder (103) to expand the deflection area.

3. The bridge bearing structure with automatic leveling according to claim 2, characterized in that: A horizontal limiting ring (105) is fixedly sleeved on the middle of the outer surface of the double-sided spherical core (104), and the horizontal limiting ring (105) is used to limit the single spherical deflection angle of the double-sided spherical core (104).

4. The bridge bearing structure with automatic leveling according to claim 3, characterized in that: Spherical sliding plates (106) are fixedly connected to the spherical surfaces of the two curved columns (103), and the double-sided spherical core (104) is slidably disposed between the two spherical sliding plates (106).

5. The bridge bearing structure with automatic leveling according to claim 4, characterized in that: The surface of the spherical slide plate (106) is coated with a wear-resistant and friction-reducing coating, and the surface of the double-sided spherical core (104) is coated with lubricating oil.

6. The bridge bearing structure with automatic leveling according to claim 1, characterized in that: The limiting and fixing unit (200) includes two L-shaped plates (201) fixed to the bottom of the upper seat plate (101) by bolts, and two fixing plates (202) are fixedly connected to the top of the lower seat plate (102). The two L-shaped plates (201) are respectively fixed to the two fixing plates (202) by bolts.

7. The bridge bearing structure with automatic leveling according to claim 6, characterized in that: A rubber sleeve (203) is fixed between the upper seat plate (101) and the upper seat plate (101). The curved column (103) and the double-sided ball core (104) are both located inside the rubber sleeve (203). The rubber sleeve (203) is used for dustproof and waterproof.

8. The bridge bearing structure with automatic leveling according to claim 7, characterized in that: A detachable spirit level (204) is provided between the opposing surfaces of the upper seat plate (101) and the lower seat plate (102), and the spirit level (204) is used to measure the tilt angle of the upper seat plate (101) and the lower seat plate (102).

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