A novel spherical fixed support

Abstract

This utility model relates to a novel spherical fixed bearing, comprising an upper bearing plate, a spherical crown liner, and a lower bearing plate stacked vertically in sequence. Limiting baffles extend downwards from a set of opposing sides of the upper bearing plate, and limiting grooves are formed on the limiting baffles. Limiting bosses are provided on a set of opposing sides of the lower bearing plate, with each limiting boss corresponding to a limiting groove. The longitudinal horizontal load of the bridge is transmitted to the pier via the limiting baffles of the upper bearing plate and the lower bearing plate, while the transverse horizontal load of the bridge is transmitted to the pier via the limiting baffles and limiting bosses of the upper bearing plate. By improving the structure of the bearing for transmitting the horizontal load of the bridge, and using the longitudinal and transverse sections of the upper bearing plate with limiting baffles on both sides to bear the horizontal forces in the longitudinal and transverse directions of the bridge, the structural dimensions of the upper and lower bearing plates are significantly reduced, the weight of the spherical fixed bearing is lowered, the processing efficiency of the upper bearing plate is greatly improved, and the cost of the novel spherical fixed bearing is significantly reduced.

Description

Technical Field

[0001] This utility model relates to the field of bridge bearing technology, and in particular to a novel spherical fixed bearing. Background Technology

[0002] The fixed bearing of a bridge spherical bearing mainly consists of an upper bearing plate, a spherical cap liner, and a lower bearing plate. The structure of existing fixed bearings for bridge spherical bearings is shown below. Figure 1 and Figure 3 The vertical load of the bridge is transferred vertically downwards from the upper bearing plate to the bridge piers and abutments. The horizontal load of the bridge is transferred directly from the upper bearing plate to the lower bearing plate, and then to the bridge piers and abutments. To withstand the longitudinal and transverse horizontal loads of the bridge, the upper bearing plate of the spherical fixed bearing is generally as follows: Figure 3 and Figure 4 The structure shown. Figure 2 The upper support plate shown has a convex ring to transmit horizontal force. Although it is easy to process, the upper support plate is large in size, and the lower support plate also needs to be relatively large in size. Therefore, the material consumption is large and the cost is high. Moreover, it is difficult to prevent corrosion at the contact parts of the upper and lower support plates that resist horizontal force. Figure 4 The upper support plate shown has a closed square frame below it, which is consistent with... Figure 2 Compared to the structure shown, its advantage is that it uses less material, but its disadvantage is that the inner facade inside the frame needs to be machined with a CNC milling cutter, resulting in lower processing efficiency and higher processing costs. Utility Model Content

[0003] (a) Technical problems to be solved In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a novel spherical fixed support.

[0004] (II) Technical Solution To achieve the above objectives, the novel spherical fixed support of this utility model includes an upper support plate, a spherical crown liner, and a lower support plate stacked vertically in sequence. Limiting baffles are provided on a set of opposite sides of the upper support plate, and limiting baffles are provided with limiting grooves. Limiting bosses are provided on a set of opposite sides of the lower support plate, and the limiting bosses are connected to the limiting grooves one by one.

[0005] Optionally, the limiting groove is located at the middle position of the limiting baffle, and the opening of the limiting groove faces downward.

[0006] Optionally, a set of opposite sides of the lower support plate are all vertical surfaces, and the limiting boss is disposed in the middle of the vertical surfaces. The limiting boss is horizontally disposed within the limiting groove, and a gap is provided between the upper surface of the limiting boss and the upper top surface of the limiting groove.

[0007] Optionally, the inner sides of the two limiting baffles are respectively arranged opposite to the two vertical surfaces of the lower support plate; A longitudinal friction pair is provided on the vertical surface, and the inner sides of the two limiting baffles respectively abut against the longitudinal friction pairs on the two vertical surfaces.

[0008] Optionally, a transverse friction pair is provided between the limiting boss and the side wall of the limiting groove, and both the limiting boss and the side wall of the limiting groove abut against the transverse friction pair.

[0009] Optionally, the lateral friction pair is disposed on the limiting boss.

[0010] Optionally, a planar friction pair is provided between the upper support plate and the spherical crown liner.

[0011] Optionally, a spherical friction pair is provided between the spherical crown liner and the lower support plate.

[0012] (III) Beneficial Effects The longitudinal horizontal load of the bridge is transmitted to the piers via the limiting baffles of the upper bearing plate and the lower bearing plate, while the transverse horizontal load is transmitted to the piers via the limiting baffles and limiting protrusions of the upper bearing plate. Both the longitudinal and transverse directions are horizontal, with the longitudinal direction parallel to the bridge's extension direction and the transverse direction perpendicular to it. By improving the structure of the bearing for transmitting the bridge's horizontal load, a longitudinal and transverse cross-section with limiting baffles on both sides of the upper bearing plate is used to bear the horizontal forces in both directions. The improved structure significantly reduces the structural dimensions of the upper and lower bearing plates, lowering the weight of the spherical fixed bearing. Furthermore, it greatly improves the processing efficiency of the upper bearing plate, resulting in a substantial reduction in the cost of the new spherical fixed bearing. Attached Figure Description

[0013] Figure 1 This is a sectional view of the first type of existing spherical fixed support; Figure 2 This is a schematic diagram of the upper support plate of the first type of existing spherical fixed support; Figure 3 This is a sectional view of the second type of existing spherical fixed support; Figure 4 This is a schematic diagram of the upper support plate of the second type of existing spherical fixed support; Figure 5 This is a schematic diagram of the structure of the novel spherical fixed support of this utility model; Figure 6 for Figure 5 Sectional view at point I-I; Figure 7 for Figure 5 Sectional view at point II-II; Figure 8 This is a schematic diagram of the upper support plate of the novel spherical fixed support of this utility model; Figure 9 for Figure 8 Sectional view at point IV-IV; Figure 10 This is a schematic diagram of the lower support plate of the novel spherical fixed support of this utility model; Figure 11 for Figure 10 A partial sectional view at point V-V.

[0014] [Explanation of Labels in the Attached Image] 1: Upper support plate; 2: Planar friction pair; 3: Spherical crown liner; 4: Spherical friction pair; 5: Lower support plate; 6: Longitudinal friction pair; 7: Transverse friction pair; 11: Limiting baffle; 111: Limiting groove; 51: Limiting boss. Detailed Implementation

[0015] To better explain and facilitate understanding of this utility model, a detailed description of its specific embodiments is provided below with reference to the accompanying drawings. In this document, directional terms such as "upper," "lower," etc., are used interchangeably with other directional terms. Figure 5 The orientation is used as a reference.

[0016] While exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention can be understood more clearly and thoroughly, and that the scope of the present invention can be fully conveyed to those skilled in the art.

[0017] like Figure 5-11 As shown, this utility model provides a novel spherical fixed bearing, which includes an upper support plate 1, a spherical crown liner plate 3, and a lower support plate 5 stacked vertically from top to bottom. The upper support plate 1 is connected to the bridge, and the lower support plate 5 is connected to the pier. The top surface of the lower support plate 5 mates with the spherical surface of the spherical crown liner plate 3 to accommodate the rotational deformation of the bridge. The upper support plate 1 and the lower support plate 5 only contact each other in the horizontal direction, and the vertical load applied to the upper support plate 1 by the bridge can only be transferred to the lower support plate 5 through the spherical crown liner plate 3.

[0018] Furthermore, a set of opposite sides of the upper support plate 1 are provided with a limiting baffle 11 extending downwards, and a limiting groove 111 is formed on the limiting baffle 11. A set of opposite sides of the lower support plate 5 are provided with a limiting boss 51, and the limiting boss 51 is provided in a one-to-one correspondence with the limiting groove 111. The limiting boss 51 is fitted into the limiting groove 111, and the limiting boss 51 and the limiting groove 111 only contact each other in the horizontal direction. The limiting baffle 11 abuts against the lower support plate 5, and the limiting boss 51 abuts against the side wall of the limiting groove 111, so as to transmit force between the limiting boss 51 and the limiting groove 111 in the horizontal direction. The longitudinal horizontal load of the bridge is transmitted to the pier via the limiting baffle 11 of the upper support plate 1 and the lower support plate 5. The transverse horizontal load of the bridge is transmitted to the pier via the limiting baffle 11 and the limiting protrusion 51 of the upper support plate 1. Both the longitudinal and transverse directions are horizontal, with the longitudinal direction parallel to the extension direction of the bridge and the transverse direction perpendicular to the extension direction. By improving the structure of the support for transmitting the horizontal load of the bridge, the upper support plate 1 is equipped with limiting baffles 11 on both sides in both longitudinal and transverse sections to bear the horizontal forces in the longitudinal and transverse directions of the bridge. The improved structure significantly reduces the structural dimensions of the upper support plate 1 and the lower support plate 5, lowering the weight of the spherical fixed bearing. Furthermore, it greatly improves the processing efficiency of the upper support plate 1, resulting in a significant reduction in the cost of the new spherical fixed bearing.

[0019] like Figure 6 and Figure 8 As shown, the limiting groove 111 is located in the middle of the limiting baffle 11, with the opening of the limiting groove 111 facing downwards. Both the inner side of the limiting baffle 11 and the side of the limiting groove 111 are planar.

[0020] like Figure 10 and Figure 11 As shown, a set of opposite sides of the lower support plate 5 are all vertical surfaces, and the limiting boss 51 is located in the middle of the vertical surfaces. The limiting boss 51 is horizontally arranged in the limiting groove 111, and a gap is provided between the upper surface of the limiting boss 51 and the upper top surface of the limiting groove 111 to prevent the upper support plate 1 from crushing the limiting boss 51 after applying a vertical load to the limiting boss 51 through the limiting groove 111.

[0021] like Figure 7 As shown, the inner sides of the two limiting baffles 11 are respectively arranged in a one-to-one correspondence with the two vertical surfaces of the lower support plate 5. A longitudinal friction pair 6 is provided on the vertical surface. The inner sides of the two limiting baffles 11 respectively abut against the longitudinal friction pairs 6 on the two vertical surfaces. The longitudinal horizontal load of the bridge is transmitted to the pier through the upper support plate 1, the longitudinal friction pair 6, and the lower support plate 5. The inner surface of the limiting baffle 11 cooperates with the vertical surfaces on the left and right sides of the lower support plate 5 to bear the longitudinal horizontal load of the bridge.

[0022] like Figure 5As shown, a transverse friction pair 7 is provided between the two sides of the limiting boss 51 in the transverse direction and the side wall of the limiting groove 111. Both the side walls of the limiting boss 51 and the limiting groove 111 abut against the transverse friction pair 7. The transverse horizontal load of the bridge is transmitted to the pier via the upper support plate 1, the transverse friction pair 7, and the lower support plate 5. The side wall of the limiting groove 111 on the upper support plate 1 and the two sides of the boss on the lower support plate 5 cooperate to bear the transverse horizontal load of the bridge. Preferably, the transverse friction pair 7 is provided on the limiting boss 51.

[0023] like Figure 6 As shown, a planar friction pair 2 is provided between the upper support plate 1 and the spherical crown liner 3, and a spherical friction pair 4 is provided between the spherical crown liner 3 and the lower support plate 5.

[0024] The fixed support of this utility model has reduced the structural dimensions of the upper support plate 1 and the lower support plate 5, thereby reducing the overall weight of the fixed support; and the structure of the upper support plate 1 and the lower support plate 5 is simple and easy to process, which greatly improves the processing efficiency of the upper support plate 1 and significantly reduces the cost of the support.

[0025] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0026] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0027] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0028] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0029] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A new type of spherical fixed support, characterized in that, The novel spherical fixed support includes an upper support plate (1), a spherical crown liner plate (3), and a lower support plate (5) stacked vertically in sequence. Limiting baffles (11) are provided on a set of opposite sides of the upper support plate (1) and a limiting groove (111) is provided on the limiting baffles (11). Limiting bosses (51) are provided on a set of opposite sides of the lower support plate (5), and the limiting bosses (51) are connected to the limiting grooves (111) one by one.

2. The novel ball-type fixed support according to claim 1, characterized in that, The limiting groove (111) is located in the middle of the limiting baffle (11), and the opening of the limiting groove (111) faces downward.

3. The novel ball-type fixed support according to claim 2, characterized in that, A set of opposite sides of the lower support plate (5) are all vertical surfaces, and the limiting boss (51) is located in the middle of the vertical surfaces. The limiting boss (51) is horizontally disposed in the limiting groove (111), and a gap is provided between the upper surface of the limiting boss (51) and the upper top surface of the limiting groove (111).

4. The novel ball-type fixed support according to claim 3, characterized in that, The inner sides of the two limiting baffles (11) are respectively arranged opposite to the two vertical surfaces of the lower support plate (5); The vertical surface is provided with a longitudinal friction pair (6), and the inner sides of the two limiting baffles (11) respectively abut against the longitudinal friction pairs (6) on the two vertical surfaces.

5. The novel ball-type fixed support according to claim 1, wherein A transverse friction pair (7) is provided between the limiting boss (51) and the side wall of the limiting groove (111), and the side walls of the limiting boss (51) and the limiting groove (111) abut against the transverse friction pair (7).

6. The novel ball-type fixed support according to claim 5, characterized in that, The transverse friction pair (7) is disposed on the limiting boss (51).

7. The novel ball-type fixed support according to claim 1, wherein A planar friction pair (2) is provided between the upper support plate (1) and the spherical crown liner (3).

8. The novel spherical fixed support as described in claim 1, characterized in that, A spherical friction pair (4) is provided between the spherical crown liner (3) and the lower support plate (5).

Images