Bridge steel structure base

By setting limiting components and locking components at both ends of the base plate of the bridge steel structure foundation, the vertical misalignment problem was solved, ensuring the stability of the base plate connection and improving welding efficiency and quality.

CN224119423UActive Publication Date: 2026-04-14XUANCHENG JUSHI INTELLIGENT MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-08
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

The existing steel structure foundation of bridges is prone to misalignment in the vertical direction, which affects the stability and efficiency of welding operations.

Method used

Limiting and locking components are installed at both ends of the steel structure base plate. The initial connection of the base plate is achieved through the cooperation of the limiting and locking components, which prevents vertical displacement and ensures the stability of the connection.

Benefits of technology

It enables rapid initial connection and stable docking of the base plates, reduces shaking and misalignment during welding, and improves the convenience and quality of welding.

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    Figure CN224119423U_ABST
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Abstract

The utility model provides a bridge steel structure base, and relates to the technical field of steel structure bases. The bridge steel structure base comprises a steel structure bottom plate, semicircular rings are fixedly mounted at the two ends of the steel structure bottom plate correspondingly, limiting assemblies are arranged in the semicircular rings correspondingly, and locking assemblies are arranged in the limiting assemblies correspondingly; the limiting assembly is used in cooperation with the locking assembly and used for connecting the two steel structure bottom plates. According to the bridge steel structure base, the limiting assemblies and the locking assemblies which are matched with each other are arranged at the two ends of the steel structure bottom plates correspondingly, the two steel structure bottom plates can be rapidly and preliminarily connected under the action of the locking assemblies, and displacement of the steel structure bottom plates in the horizontal direction and even the vertical direction after preliminary connection can be avoided; and therefore, subsequent welding operation on the two steel structure bottom plates is facilitated, and actual application and operation are facilitated.
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Description

Technical Field

[0001] This utility model relates to the field of steel structure foundation technology, specifically a bridge steel structure foundation. Background Technology

[0002] Bridge foundations are an essential part of bridges. Currently, bridges with large spans are equipped with many piers to increase their strength and stability. Due to the limitations of bridge length, bridge foundations are usually divided into multiple sections. During installation, adjacent sections need to be connected by welding to increase the connection strength and thus improve the overall stability of the bridge. Because of the heavy weight of the bridge foundation, it is usually moved by lifting equipment during installation. However, this lifting process can cause some swaying, making it very troublesome to connect and coordinate the two sections.

[0003] According to the search, a Chinese patent discloses a steel structure bridge base (authorization announcement number CN216193952U), which includes a base plate, reinforcing ribs and side plates installed on the base plate, and its features also include a guide structure provided on the reinforcing ribs and side plates and a connecting structure provided on the base plate and side plates.

[0004] While this patented technology allows for the initial docking of the two base plates through a guide and connection structure, preventing them from wobbling or shifting in the horizontal direction, it can easily cause misalignment of the two base plates in the vertical direction, especially when they move relative to each other. This severely affects the welding operation between the two base plates and is detrimental to practical application and operation.

[0005] Therefore, those skilled in the art provide a bridge steel structure base to solve the problems mentioned in the background art. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a bridge steel structure base, which solves the problem mentioned in the background art that although the existing patented technologies use guide structures and connecting structures to perform preliminary docking operations on the two base plates to prevent swaying and displacement in the horizontal direction, they are prone to misalignment in the vertical direction, especially when the two base plates move relative to each other, thus seriously affecting the welding operation between the two base plates.

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a bridge steel structure base, including a steel structure base plate, with semi-circular rings fixedly installed at both ends of the steel structure base plate, each semi-circular ring having a limit component inside, and each limit component having a locking component inside.

[0008] The limiting component and the locking component are used together to connect the two steel structure base plates.

[0009] Through the above technical solution, mutually cooperating limiting components and locking components are set at both ends of the steel structure base plate. By utilizing the function of the locking components, the two steel structure base plates can be quickly initially connected, and the horizontal or even vertical displacement of the steel structure base plates can be avoided after the initial connection. This facilitates the subsequent welding operation of the two steel structure base plates and is beneficial to practical application and operation.

[0010] Preferably, the limiting component includes a first annular groove and a second annular groove, the first annular groove being formed inside the semicircular ring, the second annular groove being formed outside the semicircular ring, and the interiors of the first annular groove and the second annular groove communicating with each other.

[0011] Preferably, the locking assembly includes a locking semicircle, a limiting ring, and a toggle lever. The locking semicircle rotates inside the semicircular ring. The limiting ring is installed on the outside of the locking semicircle and is located inside the first annular groove and slidably connected to the first annular groove. The toggle lever is installed on the outside of the limiting ring and passes through the second annular groove and is slidably connected to the second annular groove.

[0012] Through the above technical solution, the toggle lever can drive the limiting ring to rotate inside the first annular groove, and at the same time drive the locking semicircle to rotate inside the semicircular ring.

[0013] Preferably, the steel structure base plate is internally fitted with a cross-shaped reinforcing plate.

[0014] The above technical solutions utilize reinforcing plates to increase the structural stability and strength of the steel structure base plate, enabling it to better adapt to bridge construction.

[0015] Preferably, two positioning blocks are installed at one end of the steel structure base plate, and two positioning grooves are opened at the end of the steel structure base plate away from the positioning blocks, and the positioning blocks and positioning grooves are used in conjunction.

[0016] By using the above technical solution, the two steel structure base plates can be connected by the cooperation between the positioning block and the positioning groove, ensuring that the position will not shift during the connection.

[0017] Preferably, the top and bottom of both ends of the steel structure base plate, and on both sides of the semi-circular ring, are provided with mutually cooperating welds.

[0018] The above technical solution allows for convenient welding of two steel structure base plates using welding rods, thereby accommodating molten iron and ensuring a neat weld.

[0019] This utility model provides a bridge steel structure base, which has the following beneficial effects:

[0020] The steel structure base of this bridge uses mutually cooperating limiting components and locking components at both ends of the steel structure base plate. The locking components can quickly connect the two steel structure base plates and prevent horizontal or even vertical displacement of the steel structure base plates after the initial connection. This facilitates subsequent welding operations on the two steel structure base plates and is beneficial to practical application and operation. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the usage state of this utility model from a first-person perspective;

[0022] Figure 2 This is a schematic diagram of the usage state of this utility model from a second perspective;

[0023] Figure 3 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 4 This is a schematic diagram showing the disassembled structure of the semicircular ring and locking assembly of this utility model.

[0025] Figure 5 This is a schematic diagram showing the disassembled structure of the limiting component and locking component of this utility model.

[0026] In the diagram: 1. Steel structure base plate; 2. Semicircular ring; 3. First circular ring groove; 4. Second circular ring groove; 5. Locking semicircle; 6. Limiting ring; 7. Actuating rod; 8. Reinforcing plate; 9. Positioning block; 10. Positioning groove; 11. Weld bead. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0028] Reference Figures 1-5 This utility model provides a bridge steel structure base, including a steel structure base plate 1. A cross-shaped reinforcing plate 8 is installed inside the steel structure base plate 1. The reinforcing plate 8 increases the structural stability and strength of the steel structure base plate 1, making it better suited for bridge construction. Two positioning blocks 9 are installed at one end of the steel structure base plate 1, and two positioning grooves 10 are formed at the end of the steel structure base plate 1 away from the positioning blocks 9. The positioning blocks 9 and the positioning grooves 10 cooperate to connect two steel structure base plates 1, ensuring that their positions do not shift during connection.

[0029] Both ends of the steel structure base plate 1 are fixedly installed with semi-circular rings 2. The top and bottom of both ends of the steel structure base plate 1, and on both sides of the semi-circular rings 2, are provided with interlocking weld beads 11. The weld beads 11 can be used to conveniently weld the two steel structure base plates 1 with welding rods, thereby accommodating molten iron and ensuring the aesthetic appearance of the weld.

[0030] In one aspect of this embodiment, a limiting component is provided inside each of the semicircular rings 2. The limiting component includes a first annular groove 3 and a second annular groove 4. The first annular groove 3 is formed inside the semicircular ring 2, and the second annular groove 4 is formed outside the semicircular ring 2, and the interiors of the first annular groove 3 and the second annular groove 4 communicate with each other. The second annular groove 4 does not penetrate through the outer side of the semicircular ring 2, leaving a slack at both ends.

[0031] In one aspect of this embodiment, a locking component is provided inside each limiting component. The limiting component and the locking component are used together to connect two steel structure base plates 1. The locking component includes a locking semicircle 5, a limiting ring 6, and a lever 7. The locking semicircle 5 rotates inside the semicircular ring 2, and the outer diameter of the locking semicircle 5 matches the inner diameter of the semicircular ring 2. The limiting ring 6 is installed on the outside of the locking semicircle 5, is located inside the first annular groove 3 and is slidably connected to the first annular groove 3, and the size of the limiting ring 6 matches that of the first annular groove 3. The lever 7 is installed on the outside of the limiting ring 6, passes through the second annular groove 4 and is slidably connected to the second annular groove 4. The lever 7 can drive the limiting ring 6 to rotate inside the first annular groove 3, and at the same time drive the locking semicircle 5 to rotate inside the semicircular ring 2.

[0032] Working principle:

[0033] When using, such as Figure 1 and Figure 2 As shown, first, align the positioning block 9 at one end of one steel structure base plate 1 that needs to be used with the positioning groove 10 at one end of another steel structure base plate 1, and insert the positioning block 9 into the corresponding positioning groove 10. At this time, the locking semicircles 5 on the outer sides of the two steel structure base plates 1 are aligned and together form a circular structure.

[0034] Then, by actuating the lever 7, the limiting ring 6 rotates inside the first annular groove 3, simultaneously causing the locking semicircle 5 to rotate inside the semicircular ring 2, so that both locking semicircles 5 rotate 90 degrees simultaneously. Figure 1 The connection point of the two steel structure base plates 1 is shown;

[0035] At this time, the two ends of the locking semicircle 5 are located inside the two semicircular rings 2 respectively, and the limiting ring 6 is also located inside the two different first annular grooves 3. Under the action of the locking semicircle 5, semicircular ring 2, first annular groove 3 and limiting ring 6, the two steel structure base plates 1 cannot be separated and cannot be displaced up, down or left or right, thus ensuring the stability of the connection between the two steel structure base plates 1.

[0036] Then, the two steel structure base plates 1 can be welded inside the weld bead 11 using welding rods. During the welding process, there is no need to worry about relative displacement between the two steel structure base plates 1, which is beneficial for practical application and operation.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bridge steel structure base, comprising a steel structure base plate (1), characterized in that, Both ends of the steel structure base plate (1) are fixedly installed with semi-circular rings (2), and each semi-circular ring (2) is provided with a limit component, and each limit component is provided with a locking component. The limiting component and the locking component are used together to connect the two steel structure base plates (1); The limiting component includes a first annular groove (3) and a second annular groove (4). The first annular groove (3) is opened inside the semi-circular ring (2), and the second annular groove (4) is opened outside the semi-circular ring (2). The first annular groove (3) and the second annular groove (4) are connected inside each other. The locking assembly includes a locking semicircle (5), a limiting ring (6), and a lever (7). The locking semicircle (5) rotates inside the semicircular ring (2). The limiting ring (6) is installed on the outside of the locking semicircle (5). The limiting ring (6) is located inside the first annular groove (3) and is slidably connected to the first annular groove (3). The lever (7) is installed on the outside of the limiting ring (6). The lever (7) passes through the second annular groove (4) and is slidably connected to the second annular groove (4).

2. The bridge steel structure base according to claim 1, characterized in that: The steel structure base plate (1) is equipped with a cross-shaped reinforcing plate (8).

3. The bridge steel structure base according to claim 1, characterized in that: Two positioning blocks (9) are installed at one end of the steel structure base plate (1), and two positioning grooves (10) are opened at the end of the steel structure base plate (1) away from the positioning blocks (9). The positioning blocks (9) and the positioning grooves (10) are used in conjunction.

4. The bridge steel structure base according to claim 1, characterized in that: The steel structure base plate (1) has weld beads (11) at the top and bottom of both ends and on both sides of the semi-circular ring (2) for mutual use.

Citation Information

Patent Citations

  • Steel structure bridge base

    CN216193952U