Double-limiting large-corner support

Abstract

The utility model discloses a double-limit large corner support, which relates to the technical field of bridge supports and comprises an upper support plate, a middle lining plate and a lower support plate, the middle lining plate is arranged at the bottom of the upper support plate, and the lower support plate is arranged at the bottom of the middle lining plate. The spherical stainless steel and the spherical sliding plate are arranged between the middle lining plate and the lower support plate, rotation between the middle lining plate and the lower support plate is achieved through the spherical sliding surfaces of the spherical stainless steel and the spherical sliding plate, the rotation radian can reach 0.04 Rad, the gradient can reach 40% o, and the requirement of a large-gradient line can be met; the upper support plates with different gradients are prevented from being machined, the interchangeability of the supports of the same model is improved, the later replacement and maintenance cost is reduced, two limits can be provided for the steel support through the bosses and the grooves which are arranged between the upper support plate and the middle lining plate in an inserted mode and the convex cylindrical tables and the cylindrical grooves which are arranged between the middle lining plate and the lower support plate, and therefore the steel support can be conveniently replaced. And the steel support is safer to use.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge supports, in particular to a double-limit large-angle support. Background Art

[0002] Bridge bearings are important structural components that connect the superstructure and substructure of a bridge. They are located between the bridge and the pad stone. They can reliably transfer the load and deformation (displacement and rotation) borne by the superstructure of the bridge to the substructure of the bridge. They are important force transmission devices of the bridge. There are two types of bearings: fixed bearings and movable bearings. Commonly used bearing forms in bridge engineering include: flat bearings, plate rubber bearings, spherical bearings, steel bearings and special bearings.

[0003] The existing technology has the following problems:

[0004] Steel bearings are increasingly used in the market, but some bridges have a certain slope, or even a large slope line, with a slope of more than 20‰, while the existing bearings allow a rotation angle of only 0.02Rad. When the rotation angle cannot meet the line slope, the bearing plate on the bearing needs to be processed with a corresponding slope to meet the line requirements, which lengthens the bearing processing cycle. At the same time, the same specification and model of bearings lose interchangeability, increasing the cost of later replacement and maintenance. During the construction process, there will also be construction errors in the embedded steel plate at the bottom of the beam, resulting in a large height difference at the four corners, which cannot be met by the existing ordinary bearings and requires special design. Utility Model Content

[0005] The utility model provides a double-limit large-angle support to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A double-limit large-angle support comprises an upper support plate, a middle lining plate and a lower support plate, wherein the middle lining plate is arranged at the bottom of the upper support plate, and the lower support plate is arranged at the bottom of the middle lining plate.

[0008] A further improvement of the technical solution of the utility model is that a cylindrical groove is opened at the bottom end of the middle lining plate, and a convex cylindrical platform is fixedly connected to the top end of the lower support plate. The convex cylindrical platform is slidably inserted into the interior of the cylindrical groove, and there is a certain gap between the inner surface of the cylindrical groove and the outer surface of the convex cylindrical platform.

[0009] A further improvement of the technical solution of the utility model is that: the upper surface of the inner wall of the cylindrical groove is fixedly connected with spherical stainless steel, the upper surface of the convex cylindrical platform is fixedly connected with a spherical slide plate, and the upper surface of the spherical slide plate is slidably connected to the lower surface of the spherical stainless steel.

[0010] A further improvement of the technical solution of the utility model is that a groove running through from top to bottom is provided in the middle of the upper support plate, a boss is fixedly connected to the upper surface of the middle lining plate, and the boss is slidably inserted in the interior of the groove.

[0011] A further improvement of the technical solution of the utility model is that: a stainless steel strip is fixedly connected to the front and rear sides of the inner surface of the groove, and a SF wear-resistant strip is fixedly connected to the front and rear sides of the outer surface of the boss, and the outer surface of the SF wear-resistant strip is slidably connected to the outer surface of the stainless steel strip.

[0012] A further improvement of the technical solution of the utility model is that: the front and rear sides of the upper surface of the middle lining plate are fixedly connected with slide plates, the front and rear sides of the lower surface of the upper support plate are fixedly connected with stainless steel plates, and the lower surface of the stainless steel plate is slidably connected to the upper surface of the slide plate.

[0013] A further improvement of the technical solution of the utility model is that: the outer surface of the middle lining plate is fixedly connected with two SF wear-resistant strips on both the front and rear sides, the inner surface of the upper support plate is fixedly connected with two stainless steel strips on both the front and rear sides, and the outer surface of the two SF wear-resistant strips is slidably connected to the outer surface of the two stainless steel strips.

[0014] A further improvement of the technical solution of the utility model is that a sealing ring is provided between the middle lining plate and the lower support plate.

[0015] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0016] 1. The utility model provides a double-limit large-angle bearing. Spherical stainless steel and a spherical slide plate are arranged between the middle lining plate and the lower support plate. The rotation between the middle lining plate and the lower support plate is realized through the spherical sliding surface of the spherical stainless steel and the spherical slide plate. The rotation arc can reach 0.04Rad and the slope can reach 40‰. It can meet the needs of large-slope lines, avoid processing upper support plates with different slopes, improve the interchangeability of supports of the same model, and reduce the later replacement and maintenance costs.

[0017] 2. The utility model provides a double-limit large-angle support, which can provide two limits for the steel bracket by setting mutually inserted bosses and grooves between the upper support plate and the middle lining plate, and setting convex cylindrical platforms and cylindrical grooves between the middle lining plate and the lower support plate, making the use of the steel support safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the longitudinal cross-sectional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0020] Figure 3 It is a schematic diagram of the enlarged structure of the transverse bridge of the utility model;

[0021] Figure 4 This is a schematic diagram of slope adjustment of the utility model.

[0022] In the figure: 1. upper support plate; 2. middle lining plate; 3. lower support plate; 4. spherical slide plate; 5. sealing ring; 6. spherical stainless steel; 7. SF wear-resistant strip one; 8. stainless steel strip one; 9. stainless steel plate; 10. slide plate; 11. SF wear-resistant strip two; 12. stainless steel strip two. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods:

[0024] like Figure 1-4 As shown, the utility model provides a double-limit large-angle support, including an upper support plate 1, a middle lining plate 2 and a lower support plate 3. The middle lining plate 2 is arranged at the bottom of the upper support plate 1, and the lower support plate 3 is arranged at the bottom of the middle lining plate 2. A cylindrical groove is opened at the bottom end of the middle lining plate 2, and a convex cylindrical platform is fixedly connected to the top end of the lower support plate 3. The convex cylindrical platform is slidably inserted in the cylindrical groove. There is a certain gap between the inner surface of the cylindrical groove and the outer surface of the convex cylindrical platform. The gap is set to meet the large rotation angle of the support. A spherical stainless steel 6 is fixedly connected to the upper surface of the inner wall of the cylindrical groove, and a spherical slide plate 4 is fixedly connected to the upper surface of the convex cylindrical platform. The upper surface of the spherical slide plate 4 is slidably connected to the lower surface of the spherical stainless steel 6. A sealing ring 5 is arranged between the middle lining plate 2 and the lower support plate 3, and the sealing ring 5 can ensure that the spherical sliding surface is clean.

[0025] By setting the convex cylindrical platform and the cylindrical groove between the middle lining plate 2 and the lower support plate 3, a limit can be provided for the steel bracket, making the use of the steel support safer. At the same time, by setting the spherical stainless steel 6 and the spherical slide plate 4 between the convex cylindrical platform and the cylindrical groove, the rotation between the middle lining plate 2 and the lower support plate 3 can be achieved through the spherical sliding surface of the spherical stainless steel 6 and the spherical slide plate 4. The rotation arc can reach 0.04Rad and the slope can reach 40‰, which can meet the requirements of large slope lines, avoid processing of upper support plates with different slopes, and improve the interchangeability of supports of the same model.

[0026] like Figure 1-4As shown, the utility model provides a double-limit large-angle support, a groove running through from top to bottom is opened in the middle of the upper support plate 1, a boss is fixedly connected to the upper surface of the middle lining plate 2, and the boss is slidably inserted in the groove, and a stainless steel strip 8 is fixedly connected to the front and rear sides of the inner surface of the groove, and a SF wear-resistant strip 7 is fixedly connected to the front and rear sides of the outer surface of the boss, and the outer surface of the SF wear-resistant strip 7 is slidably connected to the outer surface of the stainless steel strip 8, and a slide plate 10 is fixedly connected to the front and rear sides of the upper surface of the middle lining plate 2, and a stainless steel plate 9 is fixedly connected to the front and rear sides of the lower surface of the upper support plate 1, and the lower surface of the stainless steel plate 9 is slidably connected to the upper surface of the slide plate 10, and a SF wear-resistant strip 11 is fixedly connected to the front and rear sides of the outer surface of the middle lining plate 2, and a stainless steel strip 12 is fixedly connected to the front and rear sides of the inner surface of the upper support plate 1, and the outer surface of the SF wear-resistant strip 11 is slidably connected to the outer surface of the stainless steel strip 12;

[0027] The upper support plate 1 and the middle lining plate 2 achieve longitudinal bridge displacement of the support through the sliding between SF wear-resistant strip 7 and stainless steel strip 8, the sliding between the slide plate 10 and the stainless steel plate 9, and the sliding between SF wear-resistant strip 11 and stainless steel strip 12. By setting mutually plug-in bosses and grooves between the upper support plate 1 and the middle lining plate 2, a limit can be provided for the support, making the use of the steel support safer.

[0028] The working principle of the double-limit large-angle support is described in detail below.

[0029] like Figure 1-4 As shown, when the double-limit large-angle bearing is in use, the upper bearing plate 1 and the middle lining plate 2 realize the longitudinal bridge displacement of the bearing through the three sliding surfaces of sliding between SF wear-resistant strip 7 and stainless steel strip 18, sliding between slide plate 10 and stainless steel plate 9, and sliding between SF wear-resistant strip 11 and stainless steel strip 12. At the same time, spherical stainless steel 6 and spherical slide plate 4 are arranged between the convex cylindrical platform and the cylindrical groove, and the rotation between the middle lining plate 2 and the lower bearing plate 3 is realized through the spherical sliding surfaces of the spherical stainless steel 6 and the spherical slide plate 4, which facilitates the support of bridges with slopes. At the same time, the boss and groove arranged between the upper bearing plate 1 and the middle lining plate 2, and the convex cylindrical platform and cylindrical groove arranged between the middle lining plate 2 and the lower bearing plate 3 can provide two limits for the steel bracket, making the use of the steel bearing safer.

[0030] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A double-limit large-angle support, characterized in that: It comprises an upper support plate (1), a middle lining plate (2) and a lower support plate (3), wherein the middle lining plate (2) is arranged at the bottom of the upper support plate (1), and the lower support plate (3) is arranged at the bottom of the middle lining plate (2); A cylindrical groove is provided at the bottom end of the middle lining plate (2), and a convex cylindrical platform is fixedly connected to the top end of the lower support plate (3). The convex cylindrical platform is slidably inserted in the cylindrical groove, and a certain gap exists between the inner surface of the cylindrical groove and the outer surface of the convex cylindrical platform. A groove running through the upper and lower parts is provided in the middle of the upper support plate (1). A convex platform is fixedly connected to the upper surface of the middle lining plate (2), and the convex platform is slidably inserted in the groove. A stainless steel strip (8) is fixedly connected to the front and rear sides of the inner surface of the groove, and a SF wear-resistant strip (7) is fixedly connected to the outer surface of the SF wear-resistant strip (7). The outer surface of the SF wear-resistant strip (7) is slidably connected to the outer surface of the stainless steel strip (8).

2. A double-limit large-angle support according to claim 1, characterized in that: The upper surface of the inner wall of the cylindrical groove is fixedly connected with a spherical stainless steel (6), the upper surface of the convex cylindrical platform is fixedly connected with a spherical slide plate (4), and the upper surface of the spherical slide plate (4) is slidably connected to the lower surface of the spherical stainless steel (6).

3. The double-limit large-angle support according to claim 1, characterized in that: The front and rear sides of the upper surface of the middle lining plate (2) are fixedly connected to a slide plate (10), the front and rear sides of the lower surface of the upper support plate (1) are fixedly connected to a stainless steel plate (9), and the lower surface of the stainless steel plate (9) is slidably connected to the upper surface of the slide plate (10).

4. The double-limit large-angle support according to claim 1, characterized in that: The outer surface of the middle lining plate (2) is fixedly connected to SF wear-resistant strips (11) on both the front and rear sides, and the inner surface of the upper support plate (1) is fixedly connected to stainless steel strips (12) on both the front and rear sides. The outer surface of the SF wear-resistant strip (11) is slidably connected to the outer surface of the stainless steel strip (12).

5. The double-limit large-angle support according to claim 1, characterized in that: A sealing ring (5) is provided between the middle lining plate (2) and the lower support plate (3).

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