Anti-drawing bridge support

Abstract

The utility model relates to an 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; the left side and the right side between the upper support and the lower support are connected together through anti-drawing structural parts. The upper support and the lower support are connected together through the anti-drawing structural part, the anti-drawing capacity is improved in the vertical direction, and longitudinal earthquake energy is relieved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge bearings, in particular to a bridge bearing with anti-pulling function. Background Art

[0002] A bridge generally consists of an upper structure, a lower structure, bearings and accessory structures. A bridge bearing is an important component connecting and restricting the upper and lower structures of a bridge and is an indispensable part for the load-bearing of a 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, including 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 in sequence. 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; 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 located 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 falling beam situation.

[0004] To sum up, the existing bridge bearings can ensure sufficient sliding displacement and have a certain elastic buffer function, but their anti-pulling ability is relatively weak, especially for the longitudinal pulse from an earthquake.

[0005] In view of the above defects, the designer actively conducts research and innovation to create a bridge bearing with anti-pulling function, 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 anti-pulling function.

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

[0008] A bridge bearing with anti-pulling function 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 in sequence. 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. U-shaped connectors are arranged at both left and right ends of the bearing unit;

[0009] On both left and right sides between the upper bearing and the lower bearing, they are connected together through anti-pulling structural members;

[0010] The anti-pulling structure member includes a support rod assembly. An upper pulling block is provided at the top of the support rod assembly. An upper mating slot adapted to the above-mentioned upper pulling block is formed on the upper support. The upper pulling block is inserted into the upper mating slot along the front-rear direction. A lower locking groove is formed on the lower support directly below the support rod assembly. The bottom of the support rod assembly is inserted into the lower locking groove along the front-rear direction and then locked by a lower locking nut.

[0011] As a further improvement of the present utility model, the support rod assembly sequentially includes an upper support rod and a lower support rod from top to bottom. An upper pulling block is provided at the top of the upper support rod. An upper insertion hole is formed at the bottom of the upper support rod. The top of the lower support rod is inserted into the upper insertion hole directly above, and the bottom of the lower support rod is inserted into the lower locking groove along the front-rear direction and then locked by a lower locking nut.

[0012] As a further improvement of the present utility model, the lower support rod is installed in the upper insertion hole by means of threaded connection.

[0013] As a further improvement of the present utility model, 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.

[0014] As a further improvement of the present utility model, 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.

[0015] As a further improvement of the present utility model, the upper friction pair is a planar friction pair, and the lower friction pair is a spherical friction pair.

[0016] As a further improvement of the present utility model, the U-shaped connecting member is a steel structure anti-falling beam.

[0017] By means of the above solution, the present utility model has at least the following advantages:

[0018] The present utility model connects the upper support and the lower support together through the anti-pulling structure member, improves the anti-pulling ability in the vertical direction, and slows down the longitudinal seismic energy.

[0019] The anti-pulling structure member of the present utility model has a relatively simple structure, is relatively convenient to install, and has a relatively low cost.

[0020] The above description is only an overview of the technical solution of the present utility model. In order to be able to understand the technical means of the present utility model more clearly and implement it in accordance with the content of the description, the following takes the preferred embodiment of the present utility model and combines with the attached drawings to describe in detail as follows. Brief Description of the Drawings

[0021] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the attached drawings required for the embodiments. It should be understood that the following attached drawings only show certain embodiments of the present utility model, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related attached drawings can also be obtained based on these attached drawings.

[0022] Figure 1 is a schematic structural diagram of a bridge bearing with anti-pulling property of the present utility model;

[0023] Figure 2 is Figure 1 a schematic structural diagram of another embodiment;

[0024] Figure 3 is Figure 1 or Figure 2 a schematic structural diagram of the anti-pulling structural member in

[0025] Among them, the meanings of the reference numerals in the drawings are as follows.

[0026] Beam body 1, upper bearing 2, upper bearing convex block 3, upper friction pair 4, spherical crown 5, lower friction pair 6, U-shaped connecting member 7, bridge pier 8, lower bearing 9, upper mating slot 10, anti-pulling structural member 11, lower locking groove 12, upper support rod 13, upper pulling block 14, upper jack 15, lower support rod 16, lower locking nut 17. Specific embodiments

[0027] The following will further describe in detail the specific embodiments of the present utility model in conjunction with the attached drawings and embodiments. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0028] In order to enable those in the technical field to better understand the solutions of the present utility model, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the attached 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 attached 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 attached 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.

[0029] Embodiment

[0030] As Figures 1 to 3 shown,

[0031] A bridge bearing with tensile resistance, which successively includes a beam body 1, a bearing unit, and a pier 8 from top to bottom. The bearing unit successively includes an upper bearing 2 and a lower bearing 9 from top to bottom. 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 it. U-shaped connectors 7 are arranged at both left and right ends of the bearing unit.

[0032] 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.

[0033] Among them, the upper friction pair 4 is a planar friction pair, and the lower friction pair 6 is a spherical friction pair.

[0034] Among them, the U-shaped connector 7 is a steel structure anti-falling beam.

[0035] 1. Both the left and right sides between the upper bearing 2 and the lower bearing 9 are connected together through tensile resistance structural members 11.

[0036] The tensile resistance structural member 11 includes a support rod assembly. An upper pulling block 14 is arranged at the top of the support rod assembly. An upper mating slot 10 adapted to the above-mentioned upper pulling block 14 is opened on the upper bearing 2. The upper pulling block 14 is inserted into the upper mating slot 10 along the front-rear direction. A lower locking groove 12 is opened on the lower bearing 9 directly below the support rod assembly. After the bottom of the support rod assembly is inserted into the lower locking groove 12 along the front-rear direction, it is locked by a lower locking nut 17.

[0037] Such as Figure 2 , the installation method of the tensile resistance structural member 11 can also be the opposite of the above.

[0038] Second, the split structure of the above-mentioned support rod assembly:

[0039] The support rod assembly successively includes an upper support rod 13 and a lower support rod 16 from top to bottom. An upper pulling block 14 is arranged at the top of the upper support rod 13. An upper insertion hole 15 is opened at the bottom of the upper support rod 13. The top of the lower support rod 16 is inserted into the upper insertion hole 15 directly above it, and the bottom of the lower support rod 16 is inserted into the lower locking groove 12 along the front-rear direction and then locked by a lower locking nut 17.

[0040] Among them, the lower support rod 16 is installed in the upper insertion hole 15 by means of threaded connection.

[0041] In the description of the present utility model, 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. It is only for the convenience of describing the present utility model 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. Therefore, it should not be construed as a limitation to the present utility model. 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 utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0042] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "mounted", "connected", "coupled" shall 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 utility model can be understood through specific circumstances.

[0043] The above description is only the preferred embodiment of the present utility model and is not used to limit the present utility model. It should be pointed out that for those of ordinary skill in the art in this technical field, without departing from the technical principle of the present utility model, several improvements and modifications can still be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. A tensile bridge bearing, comprising, from top to bottom, a beam body (1), a bearing unit and a bridge pier (8), wherein the bearing unit comprises, from top to bottom, an upper bearing (2) and a lower bearing (9), wherein 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: The left and right sides between the upper support (2) and the lower support (9) are connected together via an anti-pullout structural member (11); The anti-pulling structural member (11) comprises a support rod assembly, an upper pull block (14) is arranged on the top of the support rod assembly, an upper pair of slots (10) adapted to the upper pull block (14) is provided on the upper support (2), the upper pull block (14) is inserted into the upper pair of slots (10) along the front-to-back direction, a lower locking slot (12) is provided on the lower support (9) directly below the support rod assembly, and the bottom of the support rod assembly is inserted into the lower locking slot (12) along the front-to-back direction and is locked by a lower locking nut (17).

2. The pull-out resistant bridge bearing according to claim 1, characterized in that: The support rod assembly comprises an upper support rod (13) and a lower support rod (16) in sequence from top to bottom, an upper pull block (14) is arranged at the top of the upper support rod (13), an upper insertion hole (15) is opened at the bottom of the upper support rod (13), the top of the lower support rod (16) is inserted into the upper insertion hole (15) just above, and the bottom of the lower support rod (16) is inserted into the lower locking groove (12) along the front-to-back direction and is locked by a lower locking nut (17).

3. The pull-out resistant bridge bearing according to claim 2, characterized in that: The lower support rod (16) is installed in the upper insertion hole (15) by means of a threaded connection.

4. The pull-out 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).

5. The pull-out resistant bridge bearing according to claim 4, 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).

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

7. The pull-out 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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