A ball-type support for a bridge with upper and lower support structures

Abstract

The utility model relates to a kind of upper and lower support structure formula bridge ball-type support, from top to bottom successively including beam body, support unit and pier, the left and right ends of support unit are all connected with the U-shaped structure of anti-beam that is arranged;Lower bracket and upper bracket are along the horizontal direction sliding contact;Between the bottom inner side of upper support and the top outer side of lower support, along the vertical direction sliding contact.This utility model is supported between the lower bracket on the upper support and the upper bracket on the lower support, and by the first sliding contact assembly that is made of lower bracket, upper bracket and first sliding contact friction pair, the support performance between upper support and lower support is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of bridge bearings, and in particular to a spherical bridge bearing with an upper and lower support structure. Background Technology

[0002] Bridges generally consist of a superstructure, substructure, bearings, and ancillary structures. Bridge bearings are important components that connect and constrain the superstructure and substructure of a bridge, and are an indispensable part of the bridge's load-bearing capacity.

[0003] A search revealed Chinese Patent Publication No. CN220246662U, which discloses a bridge anti-falling beam structure. From top to bottom, it includes a beam body, support units, and piers. The support unit, from top to bottom, includes an upper support and a lower support. A spherical crown is provided between the bottom middle of the upper support and the top middle of the lower support. U-shaped steel structural members are provided at both ends of the support unit. The U-shaped steel structural members include connecting U-shaped plates and connecting straight plates located at the top and bottom ends of the connecting U-shaped plates. The connecting straight plates can be fixed to the beam body via the left and right ends of the upper support or to the pier via the left and right ends of the lower support. In the event of an earthquake, the connecting U-shaped plates between the two connecting straight plates of the U-shaped steel structural members provide a certain elastic buffer space, which can greatly reduce the probability of beam falling.

[0004] Existing bridge bearing structures have anti-fall beams installed between the upper and lower bearings for elastic buffering. However, there is a lack of sliding connection structure between the upper and lower bearings on the outer side of the spherical crown. This results in relatively poor support performance between the spherical crown and the upper and lower bearings inside the anti-fall beam in some working scenarios where the upper and / or lower bearings on the outer side of the spherical crown are relatively long.

[0005] In view of the above-mentioned shortcomings, the designer actively researched and innovated in order to create a spherical bearing for bridges with upper and lower support structures, which would make it more valuable for industrial applications. Utility Model Content

[0006] To solve the above-mentioned technical problems, the purpose of this utility model is to provide a spherical bearing for bridges with an upper and lower support structure.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A type of spherical bearing for bridges with upper and lower support structures, comprising a beam, a bearing unit and a pier from top to bottom. The bearing unit comprises an upper bearing and a lower bearing from top to bottom. A spherical crown is provided between the bottom of the middle of the upper bearing and the top of the middle of the lower bearing. U-shaped anti-fall beams are connected to both ends of the bearing unit. At the bottom of the upper supports on both sides of the spherical crown, there are upper supports distributed vertically. On the outer side of the bottom of the upper supports, there are lower brackets distributed horizontally. Above the lower brackets, there are upper brackets distributed horizontally. The outer side of the upper brackets is connected to the lower support below through the lower supports distributed vertically. The lower brackets and the upper brackets slide in contact horizontally. The upper support slides in vertical contact with the bottom inner side and the top outer side of the lower support.

[0008] As a further improvement of this utility model, an upper spherical crown friction pair distributed along the horizontal direction is provided between the bottom of the middle end of the upper support and the top of the spherical crown, and a lower spherical crown friction pair with a spherical structure is provided between the top of the middle end of the lower support and the bottom of the spherical crown.

[0009] As a further improvement of this utility model, a first sliding contact assembly is provided between the lower bracket and the upper bracket. The first sliding contact assembly includes a lower support plate and an upper support plate. A lower support plate distributed in a horizontal direction is installed on the lower bracket, and an upper support plate distributed in a horizontal direction and adapted to the lower support plate is installed at the bottom of the upper bracket.

[0010] As a further improvement of this utility model, a first sliding contact friction pair distributed along the horizontal direction is provided between the lower support plate and the upper support plate.

[0011] As a further improvement of this utility model, the first sliding contact friction pair is mounted on the lower support plate or the upper support plate.

[0012] As a further improvement of this utility model, a second sliding contact assembly is provided between the lower support and the upper bracket. The second sliding contact assembly includes a sliding contact block, a second sliding contact friction pair, and a sliding plate. The inner side of the sliding contact block is installed on the lower support, and the outer side of the sliding contact block is equipped with a second sliding contact friction pair distributed along the vertical direction. The bottom inner side of the upper bracket is equipped with a sliding plate that is adapted to the above-mentioned second sliding contact friction pair and distributed along the vertical direction.

[0013] As a further improvement of this utility model, the inner side of the sliding contact block is movably mounted on the lower support, and an arc-shaped contact end is provided on the inner side of the sliding contact block, which can rotatably contact the lower support.

[0014] By means of the above solution, this utility model has at least the following advantages: This invention improves the support performance between the upper and lower supports by the mutual support between the lower bracket on the upper support and the upper bracket on the lower support, and by the first sliding contact assembly composed of the lower support plate, the upper support plate and the first sliding contact friction pair.

[0015] This invention, through the second sliding contact assembly between the upper support and the lower support, can accommodate the vertical sliding of the upper support and its rotation within a certain range.

[0016] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the following are the preferred embodiments of this utility model and are described in detail with reference to the accompanying drawings. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a structural schematic diagram of a bridge spherical bearing with an upper and lower support structure according to this utility model; Figure 2 yes Figure 1 A partially enlarged structural diagram of the lower support plate, the upper support plate, and the first sliding contact friction pair; Figure 3 yes Figure 1 A partially enlarged structural diagram of the middle sliding contact block, the second sliding contact friction pair, and the sliding plate.

[0019] The meanings of the labels in the figures are as follows.

[0020] 1. Beam body, 2. Upper spherical crown friction pair, 3. Spherical crown, 4. Lower spherical crown friction pair, 5. Pier, 6. Lower support, 7. Anti-fall beam, 8. Upper bracket, 9. Lower support frame, 10. Lower support frame, 11. Upper support frame, 12. First sliding contact assembly, 13. Second sliding contact assembly, 14. Lower support plate, 15. Upper support plate, 16. First sliding contact friction pair, 17. Sliding contact block, 18. Second sliding contact friction pair, 19. Sliding plate, 20. Detailed Implementation

[0021] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0022] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0023] The first embodiment of this utility model: like Figure 1 As shown, a type of spherical bearing for bridges with upper and lower supports mainly includes a beam 1, an upper support 2, a spherical crown 4, a pier 6, a lower support 7, and an anti-fall beam 8. The upper support 2 is installed at the bottom of the beam 1, and the lower support 7 is installed on the pier 6 below the upper support 2. A spherical crown 4 is provided between the upper support 2 and the lower support 7. An upper spherical crown friction pair 3 distributed horizontally is provided between the bottom of the middle of the upper support 2 and the top of the spherical crown 4. A lower spherical crown friction pair 5 with a spherical structure is provided between the top of the middle of the lower support 7 and the bottom of the spherical crown 4.

[0024] 1. The upper support 2 and the lower support 7 constitute a support unit. U-shaped anti-fall beams 8 (which can be steel structures) are connected to both ends of the support unit. The top end of the anti-fall beam 8 is installed on the outside of the upper support 2, and the bottom end of the anti-fall beam 8 is installed on the outside of the lower support 7. Through the aforementioned anti-fall beam 8 structure, beam collapse can be prevented to a certain extent during an earthquake.

[0025] Second, a sliding connection structure is also provided inside the spherical crown 4 and the anti-fall beam 8, and between the upper support 2 and the lower support 7, which can further support the upper support 2 and the lower support 7.

[0026] At the bottom of the upper supports 2 on both sides of the spherical crown 4, upper supports 9 are provided vertically. Lower brackets 10 are provided horizontally on the outer side of the bottom of the upper supports 9. Above the lower brackets 10, upper brackets 12 are provided horizontally. The outer side of the upper brackets 12 is connected to the lower support 7 below via lower supports 11 vertically. The lower brackets 10 and upper brackets 12 are in horizontal sliding contact via a first sliding contact assembly 13. Figure 2 As shown.

[0027] The first sliding contact assembly 13 includes a lower support plate 15 and an upper support plate 16. A first sliding contact friction pair 17, distributed horizontally, is disposed between the lower support plate 15 and the upper support plate 16. The first sliding contact friction pair 17 is mounted on either the lower support plate 15 or the upper support plate 16. The lower support plate 15 and the upper support plate 16 interact with each other, thereby providing support. The first sliding contact friction pair 17 installed between the lower support plate 15 and the upper support plate 16 allows the lower support plate 15 and the upper support plate 16 to slide in the horizontal direction.

[0028] Third, a vertical sliding contact is formed between the inner bottom side of the upper support 9 and the outer top side of the lower support 7. Specifically, a second sliding contact assembly 14 is provided between the lower support 7 and the upper support 9. The second sliding contact assembly 14 includes a sliding contact block 18, a second sliding contact friction pair 19, and a sliding plate 20. Figure 3 As shown.

[0029] A second sliding contact friction pair 19 distributed in the vertical direction is installed on the outer side of the sliding contact block 18. A sliding plate 20 (stainless steel plate, etc.) that is adapted to the second sliding contact friction pair 19 and distributed in the vertical direction is installed on the inner side of the bottom of the upper bracket 9. The second sliding contact friction pair 19 on the outer side of the sliding contact block 18 and the sliding plate 20 slide in the vertical direction.

[0030] The inner side of the sliding contact block 18 is movably mounted on the lower support 7, and an arc-shaped contact end is provided on the inner side of the sliding contact block 18, which can rotatably contact the lower support 7.

[0031] The specific installation structure of the sliding contact block 18 on the lower support 7 can vary. For example, the arc-shaped contact end of the sliding contact block 18 can be embedded in the arc-shaped contact groove of the lower support 7, or it can be installed in the slot of the lower support 7 by means of a pin or other connector, but not locked. The key requirement is that after the sliding contact block 18 is installed on the lower support 7, it can rotate within a certain range, thus allowing the arc-shaped contact end of the sliding contact block 18 to adapt. This ensures good adaptation when rotation (tilting, etc.) occurs within a certain range.

[0032] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A spherical bearing for a bridge with an upper and lower support structure, comprising a beam (1), a bearing unit and a pier (6) from top to bottom. The bearing unit comprises an upper bearing (2) and a lower bearing (7) from top to bottom. A spherical crown (4) is provided between the bottom of the middle end of the upper bearing (2) and the top of the middle end of the lower bearing (7). U-shaped anti-fall beams (8) are connected to both the left and right ends of the bearing unit. Its features are: At the bottom of the upper support (2) on both sides of the spherical crown (4), there are upper supports (9) distributed in the vertical direction. On the outer side of the bottom of the upper support (9), there are lower brackets (10) distributed in the horizontal direction. Above the lower brackets (10), there are upper brackets (12) distributed in the horizontal direction. The outer side of the upper brackets (12) is connected to the lower support (7) below through the lower support (11) distributed in the vertical direction. The lower brackets (10) and the upper brackets (12) slide in contact in the horizontal direction. The upper support (9) slides in vertical contact with the bottom inner side of the upper support (9) and the top outer side of the lower support (7).

2. The spherical bearing for bridges with upper and lower support structures as described in claim 1, characterized in that, An upper spherical crown friction pair (3) is provided between the bottom of the middle end of the upper support (2) and the top of the spherical crown (4) and is provided between the top of the middle end of the lower support (7) and the bottom of the spherical crown (4) and is provided between the bottom of the spherical crown (4) and is provided between the top of the middle end of the lower support (7) and the bottom of the spherical crown (4).

3. The spherical bearing for bridges with upper and lower support structures as described in claim 1, characterized in that, A first sliding contact assembly (13) is provided between the lower bracket (10) and the upper bracket (12). The first sliding contact assembly (13) includes a lower support plate (15) and an upper support plate (16). The lower support plate (15) is installed on the lower bracket (10) and is distributed in the horizontal direction. The upper support plate (16) is installed at the bottom of the upper bracket (12) and is adapted to the lower support plate (15) and is distributed in the horizontal direction.

4. A spherical bridge bearing with upper and lower support structure as described in claim 3, characterized in that, A first sliding contact friction pair (17) distributed along the horizontal direction is provided between the lower support plate (15) and the upper support plate (16).

5. A spherical bridge bearing with upper and lower support structure as described in claim 4, characterized in that, The first sliding contact friction pair (17) is mounted on the lower support plate (15) or the upper support plate (16).

6. A spherical bridge bearing with upper and lower support structure as described in claim 1, characterized in that, A second sliding contact assembly (14) is provided between the lower support (7) and the upper bracket (9). The second sliding contact assembly (14) includes a sliding contact block (18), a second sliding contact friction pair (19), and a sliding plate (20). The inner side of the sliding contact block (18) is installed on the lower support (7), and the second sliding contact friction pair (19) distributed in the vertical direction is installed on the outer side of the sliding contact block (18). The sliding plate (20) that is adapted to the second sliding contact friction pair (19) and distributed in the vertical direction is installed on the inner side of the bottom of the upper bracket (9).

7. A spherical bridge bearing with upper and lower support structure as described in claim 6, characterized in that, The inner side of the sliding contact block (18) is movably mounted on the lower support (7), and an arc-shaped contact end is provided on the inner side of the sliding contact block (18), which is rotatably in contact with the lower support (7).

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