Bidirectional anti-drawing bridge support

Abstract

The utility model relates to a bi-directional anti-drawing bridge support which sequentially comprises a beam body, a support unit and a pier from top to bottom, the support unit sequentially comprises an upper support and a lower support from top to bottom, a spherical crown is arranged between the bottom of the middle end of the upper support and the top of the middle end of the lower support below, and U-shaped connecting pieces are arranged at the left end and the right end of the support unit. Transverse anti-drawing assemblies are arranged at the bottoms of the beam bodies on the left side and the right side of the upper support and the tops of the bridge piers on the left side and the right side of the lower support; a longitudinal anti-drawing assembly is installed between the spherical crown and the lower support. By means of the transverse anti-drawing assemblies on the left side and the right side, the influence of pulses of an earthquake in the transverse direction on the bridge support can be relieved; according to the utility model, the influence of the pulse of an earthquake in the longitudinal direction on the bridge support can be relieved through the longitudinal anti-drawing assembly in the middle.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge bearings, in particular to a bridge bearing with bidirectional tensile and pull-out resistance. Background Art

[0002] A bridge generally consists of an upper structure, a lower structure, a bearing and accessory structures. A bridge bearing is an important component connecting and restricting the upper and lower structures of the bridge and is an indispensable part for the load-bearing of the bridge.

[0003] After a large amount of retrieval, it is found that the existing Chinese patent publication number is CN220246662U, which discloses a bridge anti-falling beam structure. From top to bottom, it includes a beam body, a bearing unit and a bridge pier in sequence. The bearing unit includes an upper bearing and a lower bearing from top to bottom. A spherical crown is arranged between the bottom of the middle end of the upper bearing and the top of the middle end of the lower bearing below it; U-shaped steel structural members are arranged at both left and right ends of the bearing unit. The U-shaped steel structural member includes a connecting U-shaped plate and connecting straight plates at both top and bottom ends of the connecting U-shaped plate. The connecting straight plates can pass through the left and right ends of the upper bearing and be fixed on the beam body or can pass through the left and right ends of the lower bearing and be fixed on the bridge pier. In the bridge anti-falling beam structure of the utility model, when an earthquake occurs, the connecting U-shaped plate between the two connecting straight plates of the U-shaped steel structural member has a certain elastic buffer space, which can greatly reduce the probability of the occurrence of the falling beam situation.

[0004] In summary, the existing bridge bearings can ensure sufficient sliding displacement and have a certain elastic buffer function, but their ability to resist tensile and pull-out forces from the transverse and longitudinal directions is relatively weak.

[0005] In view of the above defects, the designer actively conducts research and innovation in order to create a bridge bearing with bidirectional tensile and pull-out resistance, making it more valuable in industrial applications. Content of the Utility Model

[0006] To solve any of the above technical problems, the purpose of the utility model is to provide a bridge bearing with bidirectional tensile and pull-out resistance.

[0007] To achieve the above purpose, the utility model adopts the following technical scheme:

[0008] A bridge bearing with bidirectional tensile and pull-out resistance includes a beam body, a bearing unit and a bridge pier from top to bottom in sequence. The bearing unit includes an upper bearing and a lower bearing from top to bottom. A spherical crown is arranged between the bottom of the middle end of the upper bearing and the top of the middle end of the lower bearing below it. U-shaped connectors are arranged at both left and right ends of the bearing unit;

[0009] Transverse tensile and pull-out resistance components are arranged at the bottom of the beam body on both left and right sides of the upper bearing and at the top of the bridge pier on both left and right sides of the lower bearing;

[0010] The lateral tensile and pull-out assembly includes a lateral tensile and pull-out support rod and a side support block. At the top of the lateral tensile and pull-out support rod, there is a lateral tensile and pull-out insertion block. On the beam body or pier, there is a lateral tensile and pull-out insertion slot adapted to the above-mentioned lateral tensile and pull-out insertion block. The lateral tensile and pull-out insertion block is inserted into the lateral tensile and pull-out insertion slot along the front-back direction. Inside the lateral tensile and pull-out support rod, a side support block is installed, and there is a contact gap between the side support block and the upper support or lower support on the inner side.

[0011] A longitudinal tensile and pull-out assembly is installed between the spherical crown and the lower support.

[0012] As a further improvement of the present invention, the longitudinal tensile and pull-out assembly includes a longitudinal tensile and pull-out support rod. At the top of the longitudinal tensile and pull-out support rod, there is a longitudinal tensile and pull-out support block. Inside the spherical crown, there is an upper support support slot adapted to the above-mentioned longitudinal tensile and pull-out support block. The longitudinal tensile and pull-out support block is inserted into the upper support support slot along the front-back direction. The bottom of the longitudinal tensile and pull-out support rod is locked in the lower support locking slot inside the lower support through a lower support locking nut.

[0013] As a further improvement of the present invention, a side friction pair is installed inside the side support block.

[0014] As a further improvement of the present invention, the side friction pair is a planar friction pair.

[0015] As a further improvement of the present invention, a locking through hole communicating with the above-mentioned lateral tensile and pull-out insertion slot is opened above or below the lateral tensile and pull-out insertion slot. The locking screw located in the locking through hole is locked together with the lower lateral tensile and pull-out insertion block.

[0016] As a further improvement of the present invention, an upper friction pair is provided between the bottom of the middle end of the upper support and the top of the spherical crown, and a lower friction pair is provided between the top of the middle end of the lower support and the bottom of the spherical crown.

[0017] As a further improvement of the present invention, an upper support convex block protruding downward is provided in the middle of the bottom of the upper support, and the upper friction pair is installed on the upper support convex block.

[0018] As a further improvement of the present invention, the upper friction pair is a planar friction pair, and the lower friction pair is a spherical friction pair.

[0019] As a further improvement of the present invention, the U-shaped connecting member is a steel structure anti-falling beam.

[0020] By means of the above solution, the present invention has at least the following advantages:

[0021] Through the lateral tensile and pull-out assemblies on the left and right sides, the present invention can reduce the impact of the earthquake pulse in the lateral direction on the bridge bearing.

[0022] The utility model can slow down the influence of the earthquake pulse in the longitudinal direction on the bridge bearing through the longitudinal tensile and pull-out component in the middle.

[0023] The transverse tensile and pull-out component and the longitudinal tensile and pull-out component of the utility model have simple structural designs and are relatively convenient to install and disassemble.

[0024] The above description is only an overview of the technical solution of the utility model. In order to understand the technical means of the utility model more clearly and implement it according to the content of the description, the following takes the preferred embodiment of the utility model and describes it in detail in conjunction with the drawings as follows. Description of the Drawings

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required to be used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the utility model and should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0026] Figure 1 is a schematic structural diagram of a two-way tensile and pull-out bridge bearing of the utility model;

[0027] Figure 2 is Figure 1 a schematic structural diagram of the transverse tensile and pull-out component in

[0028] Among them, the meanings of the reference numerals in the drawings are as follows.

[0029] Girder 1, upper bearing 2, upper bearing convex block 3, upper friction pair 4, spherical crown 5, lower friction pair 6, U-shaped connecting piece 7, pier 8, lower bearing 9, transverse tensile and pull-out component 10, upper bearing support groove 11, longitudinal tensile and pull-out support block 12, longitudinal tensile and pull-out support rod 13, lower bearing locking groove 14, lower bearing locking nut 15, transverse tensile and pull-out mating slot 16, transverse tensile and pull-out support rod 17, transverse tensile and pull-out mating block 18, side support block 19, side friction pair 20, locking through hole 21, locking screw 22. Detailed Embodiments

[0030] The following combines the drawings and embodiments to further describe in detail the specific embodiments of the utility model. The following embodiments are used to illustrate the utility model but not to limit the scope of the utility model.

[0031] To enable those skilled in the art to better understand the solution of the present utility model, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Usually, the components of the embodiments of the present utility model described and shown in the accompanying drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but only represents the selected embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present utility model.

[0032] Embodiment

[0033] As Figures 1 to 2 shown,

[0034] A bridge bearing with bidirectional tensile and pull-out resistance includes, from top to bottom, a beam body 1, a bearing unit, and a bridge pier 8. The bearing unit includes, from top to bottom, an upper bearing 2 and a lower bearing 9. A spherical crown 5 is arranged between the bottom of the middle end of the upper bearing 2 and the top of the middle end of the lower bearing 9 below. U-shaped connectors 7 are arranged at both left and right ends of the bearing unit.

[0035] An upper friction pair 4 is arranged between the bottom of the middle end of the upper bearing 2 and the top of the spherical crown 5, and a lower friction pair 6 is arranged between the top of the middle end of the lower bearing 9 and the bottom of the spherical crown 5. An upper bearing convex block 3 protruding downward is arranged in the middle of the bottom of the upper bearing 2, and the upper friction pair 4 is installed on the upper bearing convex block 3.

[0036] Among them, the upper friction pair 4 is a planar friction pair, and the lower friction pair 6 is a spherical friction pair.

[0037] Among them, the U-shaped connector 7 is a steel structure anti-falling beam.

[0038] I. Transverse tensile and pull-out components 10 are arranged at the bottom of the beam body 1 on both left and right sides of the upper bearing 2 and at the top of the bridge pier 8 on both left and right sides of the lower bearing 9.

[0039] The transverse tensile and pull-out component 10 includes a transverse tensile and pull-out support rod 17 and a side support block 19. A transverse tensile and pull-out insertion block 18 is arranged at the top of the transverse tensile and pull-out support rod 17. A transverse tensile and pull-out insertion slot 16 adapted to the above transverse tensile and pull-out insertion block 18 is opened on the beam body 1 or the bridge pier 8. The transverse tensile and pull-out insertion block 18 is inserted into the transverse tensile and pull-out insertion slot 16 along the front-back direction. A side support block 19 is installed inside the transverse tensile and pull-out support rod 17, and a contact gap is arranged between the side support block 19 and the inner upper bearing 2 or lower bearing 9.

[0040] A side friction pair 20 is installed inside the side support block 19, and the side friction pair 20 is a planar friction pair.

[0041] Second, a longitudinal anti-pulling component is installed between the spherical crown 5 and the lower support 9.

[0042] The longitudinal anti-pulling component includes a longitudinal anti-pulling support rod 13. A longitudinal anti-pulling support block 12 is provided at the top of the longitudinal anti-pulling support rod 13. An upper support support groove 11 adapted to the longitudinal anti-pulling support block 12 is provided inside the spherical crown 5. The longitudinal anti-pulling support block 12 is inserted into the upper support support groove 11 along the front-rear direction. The bottom of the longitudinal anti-pulling support rod 13 is locked in a lower support locking groove 14 inside the lower support 9 through a lower support locking nut 15.

[0043] In addition, a locking through hole 21 communicating with the above-mentioned transverse anti-pulling mating slot 16 is opened above or below the transverse anti-pulling mating slot 16. A locking screw 22 located inside the locking through hole 21 is locked together with the lower transverse anti-pulling mating block 18.

[0044] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0045] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection. It may be a mechanical connection or an electrical connection. It may be directly connected or indirectly connected through an intermediate medium. It may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific situations.

[0046] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present utility model, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. A bidirectional tensile-resistant bridge bearing, comprising, from top to bottom, a beam body (1), a bearing unit and a bridge pier (8); the bearing unit comprises, from top to bottom, an upper bearing (2) and a lower bearing (9); a spherical cap (5) is arranged between the bottom of the middle end of the upper bearing (2) and the top of the middle end of the lower bearing (9); and U-shaped connectors (7) are arranged at both left and right ends of the bearing unit; Features: Transverse anti-pullout components (10) are provided at the bottom of the beam body (1) on the left and right sides of the upper support (2) and at the top of the piers (8) on the left and right sides of the lower support (9); The transverse anti-pullout assembly (10) comprises a transverse anti-pullout support rod (17) and a side support block (19); a transverse anti-pullout plug-in block (18) is arranged on the top of the transverse anti-pullout support rod (17); a transverse anti-pullout slot (16) adapted to the transverse anti-pullout plug-in block (18) is provided on the beam body (1) or the pier (8); the transverse anti-pullout plug-in block (18) is inserted into the transverse anti-pullout slot (16) along the front-rear direction; a side support block (19) is installed on the inner side of the transverse anti-pullout support rod (17); a contact gap is arranged between the side support block (19) and the inner upper support (2) or lower support (9); A longitudinal anti-pullout component is installed between the spherical cap (5) and the lower support (9).

2. A bidirectional tensile-resistant bridge bearing as claimed in claim 1, characterized in that: The longitudinal anti-pullout assembly comprises a longitudinal anti-pullout support rod (13), a longitudinal anti-pullout support block (12) is arranged on the top of the longitudinal anti-pullout support rod (13), an upper support groove (11) adapted to the longitudinal anti-pullout support block (12) is arranged in the spherical crown (5), the longitudinal anti-pullout support block (12) is inserted into the upper support groove (11) along the front-back direction, and the bottom of the longitudinal anti-pullout support rod (13) is locked in the lower support locking groove (14) in the lower support (9) by a lower support locking nut (15).

3. A bidirectional tensile-resistant bridge bearing as claimed in claim 1, characterized in that: A side friction pair (20) is installed on the inner side of the side support block (19).

4. A bidirectional tensile-resistant bridge bearing as claimed in claim 3, characterized in that: The side friction pair (20) is a plane friction pair.

5. The bidirectional tensile-resistant bridge bearing according to claim 1, characterized in that: A locking through hole (21) connected to the transverse anti-pull-out slot (16) is provided above or below the transverse anti-pull-out slot (16), and a locking screw (22) located in the locking through hole (21) is locked together with the transverse anti-pull-out plug-in block (18) below.

6. The bidirectional tensile-resistant bridge bearing according to claim 1, characterized in that: An upper friction pair (4) is arranged between the bottom of the middle end of the upper support (2) and the top of the spherical crown (5), and a lower friction pair (6) is arranged between the top of the middle end of the lower support (9) and the bottom of the spherical crown (5).

7. A bidirectional tensile-resistant bridge bearing as claimed in claim 6, characterized in that: An upper support convex block (3) protruding downward is arranged in the middle of the bottom of the upper support (2), and the upper friction pair (4) is mounted on the upper support convex block (3).

8. The bidirectional tensile-resistant bridge bearing according to claim 6, characterized in that: The upper friction pair (4) is a plane friction pair, and the lower friction pair (6) is a spherical friction pair.

9. The bidirectional tensile-resistant bridge bearing according to claim 1, characterized in that: The U-shaped connecting piece (7) is a fall-prevention beam of a steel structure.

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