Impact buffering device for municipal road and bridge foundation pit

Abstract

The utility model relates to the technical field of buffering devices, and discloses a municipal road and bridge foundation pit impact buffering device which comprises a foundation, a foundation pit is formed in the top of the foundation, a mounting plate is connected to the inner wall of the foundation pit in a sliding mode, a damping plate is fixedly connected to the bottom of the mounting plate, a bearing is embedded in one side of the damping plate, and the bearing is fixedly connected to the bottom of the mounting plate. A buffering plate is fixedly connected to the inner ring of the bearing, a threaded channel is formed in the bottom of the buffering plate, and a damping threaded column is fixedly connected to the inner bottom wall of the foundation pit. The damping threaded column is in threaded connection with the threaded channel, the buffer plate can bear resistance of threads when moving downwards, the buffer effect can be further achieved, the material of the rubber buffer pad has the buffer effect, the buffer effect of the device can be further improved, and the service life of the device is prolonged. And therefore, the buffering effect of the device is better after the device is impacted, the protection effect of the device on the bridge is greatly improved, and the practicability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of buffer devices, specifically a municipal road and bridge foundation pit impact buffer device. Background Technology

[0002] As is well known, municipal road and bridge foundation pits refer to the earthen pits excavated during the construction of urban roads and bridges for the construction of abutments, bridge piers, and extended foundations. The excavation depth and width of the pit are determined according to design requirements. Support structures are usually required to ensure construction safety and stability. The foundation pit is an earthen pit excavated at the foundation design location according to the base elevation and foundation plane dimensions. Its purpose is to provide the necessary space for the construction of abutments, bridge piers, and extended foundations. Support structures for municipal road and bridge foundation pits are generally divided into two categories: unsupported and supported. Supported structures include various forms such as sheet piles, diaphragm walls, pile banks, and underground bracing, used to ensure the stability and safety of the foundation pit.

[0003] However, most of the existing municipal road and bridge foundation pit impact buffer devices on the market have poor buffering effect after being impacted, which greatly reduces the device's protective effect on the bridge and thus reduces the device's practicality. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a municipal road and bridge foundation pit impact buffer device. This device offers advantages such as improved buffering effect after impact, significantly enhancing its protective effect on the bridge and thus improving its practicality. It solves the problem of poor buffering effect after impact, which greatly reduces the device's protective effect on the bridge and consequently its practicality.

[0006] (II) Technical Solution

[0007] To achieve the aforementioned goal of improving the buffering effect of the device after impact, thereby greatly enhancing its protection of bridges and improving its practicality, this utility model provides the following technical solution: A municipal road and bridge foundation pit impact buffer device, comprising a foundation, a foundation pit at the top of the foundation, an installation plate slidably connected to the inner wall of the foundation pit, a shock-absorbing plate fixedly connected to the bottom of the installation plate, a bearing embedded on one side of the shock-absorbing plate, a buffer plate fixedly connected to the inner ring of the bearing, a threaded channel at the bottom of the buffer plate, a shock-absorbing threaded column fixedly connected to the inner bottom wall of the foundation pit, a limit plate fixedly connected to the top of the shock-absorbing threaded column, and a rubber buffer pad fixedly connected to the top of the limit plate. Through the threaded connection between the shock-absorbing threaded column and the threaded channel, the buffer plate experiences threaded resistance when moving downwards, thus achieving a buffering effect. The rubber buffer pad is made of a material with a buffering effect, further enhancing the buffering function of the device, thereby improving its buffering effect after impact, greatly enhancing its protection of bridges, and improving its practicality.

[0008] As a preferred technical solution of this utility model, the shock-absorbing threaded column penetrates the threaded channel and extends to the outside of the buffer plate, and the outer wall of the shock-absorbing threaded column is threadedly connected to the inner wall of the threaded channel. Through the threaded connection between the shock-absorbing threaded column and the threaded channel, the buffer plate will be resisted by the thread when it moves downward, thereby achieving a buffering effect.

[0009] As a preferred technical solution of this utility model, the top of the rubber buffer pad is fixedly connected to the bottom of the mounting plate, and the material of the rubber buffer pad has a buffering effect, which can further improve the buffering effect of the device.

[0010] As a preferred technical solution of this utility model, a damping rod is fixedly connected to the bottom of the mounting plate, a damper is fixedly connected to the inner bottom wall of the pit, a spring is fixedly connected to the inner wall of the damper, and one end of the spring is fixedly connected to one end of the damping rod. The combined use of the damper, damping rod and spring can improve the shock absorption effect when the mounting plate is subjected to the impact force, thereby further improving the shock absorption effect of the device.

[0011] As a preferred embodiment of this utility model, the top of the mounting plate is connected to an anti-collision plate, and the outer wall of the anti-collision plate is fixedly connected to an anti-collision block. The anti-collision plate and the anti-collision block are made of a material with strong impact resistance, thereby improving the anti-collision performance of the device.

[0012] As a preferred technical solution of this utility model, the inner wall of the anti-collision plate is fixedly connected with a bridge column, and the top of the mounting plate is fixedly connected with a limit rod. The bottom of the bridge column is provided with multiple limit grooves. By inserting the limit rod into the limit groove, a closer installation can be achieved.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, this utility model provides an impact buffer device for municipal road and bridge foundation pits, which has the following beneficial effects:

[0015] 1. By connecting the shock-absorbing threaded column to the threaded channel, the buffer plate experiences thread resistance as it moves downwards, thus achieving a buffering effect. The rubber buffer pad material also has a buffering effect, further enhancing the buffering performance of the device. This results in better buffering after impact, significantly improving the device's protection of the bridge and enhancing its practicality. 2. Multiple limiting grooves are provided at the bottom of the bridge column. Limiting rods are inserted into these grooves for a tighter installation. The combined use of the damper, damping rod, and spring enhances the shock absorption effect when the mounting plate is subjected to impact, further improving the device's shock absorption performance. The anti-collision plate and anti-collision block are made of highly impact-resistant materials, improving the device's anti-collision performance and further meeting the usage requirements, making it worthy of promotion. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a municipal road and bridge foundation pit impact buffer device;

[0017] Figure 2 A front sectional view of an impact buffer device for municipal road and bridge foundation pits;

[0018] Figure 3 for Figure 2 Enlarged view of the structure at point A in the middle;

[0019] Figure 4 This is a top view of the mounting plate in this application. In the figure: 1. Foundation; 2. Excavation pit; 3. Mounting plate; 4. Damper; 5. Spring; 6. Damping rod; 7. Vibration damping plate; 8. Bearing; 9. Buffer plate; 10. Limiting plate; 11. Threaded channel; 12. Vibration damping threaded post; 13. Rubber buffer pad; 14. Anti-collision plate; 15. Anti-collision block; 16. Bridge column; 17. Limiting rod. Detailed Implementation

[0020] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0021] Example 1

[0022] Reference Figure 1-4 This is the first embodiment of the present invention, which provides an impact buffer device for municipal road and bridge foundation pits, including a foundation 1, a foundation pit 2 opened at the top of the foundation 1, an installation plate 3 slidably connected to the inner wall of the foundation pit 2, a shock-absorbing plate 7 fixedly connected to the bottom of the installation plate 3, a bearing 8 embedded on one side of the shock-absorbing plate 7, a buffer plate 9 fixedly connected to the inner ring of the bearing 8, a threaded channel 11 opened at the bottom of the buffer plate 9, a shock-absorbing threaded column 12 fixedly connected to the inner bottom wall of the foundation pit 2, a limit plate 10 fixedly connected to the top of the shock-absorbing threaded column 12, and a rubber buffer pad 13 fixedly connected to the top of the limit plate 10.

[0023] The shock-absorbing threaded post 12 passes through the threaded channel 11 and extends to the outside of the buffer plate 9. The outer wall of the shock-absorbing threaded post 12 is threadedly connected to the inner wall of the threaded channel 11. Through the threaded connection between the shock-absorbing threaded post 12 and the threaded channel 11, the buffer plate 9 will be resisted by the thread when it moves downward, thus achieving a buffering effect.

[0024] The top of the rubber buffer pad 13 is fixedly connected to the bottom of the mounting plate 3. The material of the rubber buffer pad 13 has a buffering effect, which can further improve the buffering effect of the device.

[0025] During use, the shock-absorbing threaded column 12 is connected to the threaded channel 11 by the thread. When the buffer plate 9 moves downward, it will be resisted by the thread, which can play a buffering role. The material of the rubber buffer pad 13 has a buffering effect, which can further improve the buffering effect of the device.

[0026] Example 2

[0027] Reference Figure 1-4 In the second embodiment of this utility model, a damping rod 6 is fixedly connected to the bottom of the mounting plate 3, a damper 4 is fixedly connected to the inner bottom wall of the pit 2, and a spring 5 is fixedly connected to the inner wall of the damper 4. One end of the spring 5 is fixedly connected to one end of the damping rod 6. The combined use of the damper 4, the damping rod 6 and the spring 5 can improve the shock absorption effect when the mounting plate 3 is subjected to the impact force, thereby further improving the shock absorption effect of the device.

[0028] The top of the mounting plate 3 is connected to a crash plate 14, and a crash block 15 is fixedly connected to the outer wall of the crash plate 14. The crash plate 14 and the crash block 15 are made of a material with strong impact resistance, which can improve the crash resistance performance of the device.

[0029] The inner wall of the anti-collision plate 14 is fixedly connected to the bridge column 16, and the top of the mounting plate 3 is fixedly connected to the limit rod 17. The bottom of the bridge column 16 is provided with multiple limit grooves. By inserting the limit rod 17 into the limit groove, a closer installation can be achieved.

[0030] During use, the bottom of the bridge column 16 is provided with multiple limiting grooves. A limiting rod 17 is inserted into the limiting groove to achieve a closer installation. The combined use of the damper 4, damping rod 6, and spring 5 enhances the shock absorption effect when the mounting plate 3 is subjected to impact, thereby further improving the shock absorption performance of the device. The anti-collision plate 14 and anti-collision block 15 are made of highly impact-resistant materials, further improving the anti-collision performance of the device. It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A municipal road bridge foundation pit impact cushion device, comprising a foundation (1), characterized in that: The top of the foundation (1) is provided with a foundation pit (2), the inner wall of the foundation pit (2) is slidably connected with a mounting plate (3), the bottom of the mounting plate (3) is fixedly connected with a damping plate (7), one side of the damping plate (7) is inlaid with a bearing (8), the inner ring of the bearing (8) is fixedly connected with a buffer plate (9), the bottom of the buffer plate (9) is provided with a threaded channel (11), the inner bottom wall of the foundation pit (2) is fixedly connected with a damping threaded column (12), the top of the damping threaded column (12) is fixedly connected with a limiting plate (10), the top of the limiting plate (10) is fixedly connected with a rubber buffer pad (13).

2. The municipal road bridge foundation impact buffering device according to claim 1, characterized in that: The damping threaded column (12) penetrates through the threaded channel (11) and extends to the outside of the buffer plate (9), and the outer wall of the damping threaded column (12) is threadedly connected with the inner wall of the threaded channel (11).

3. A municipal road bridge foundation impact cushion device according to claim 2, characterized in that: The top of the rubber buffer pad (13) is fixedly connected with the bottom of the mounting plate (3).

4. The municipal road bridge foundation impact cushion device according to claim 1, characterized in that: The bottom of the mounting plate (3) is fixedly connected with a damping rod (6), the inner bottom wall of the foundation pit (2) is fixedly connected with a damper (4), the inner wall of the damper (4) is fixedly connected with a spring (5), one end of the spring (5) is fixedly connected with one end of the damping rod (6).

5. A municipal road bridge foundation impact cushion device according to claim 4, characterized in that: The top of the mounting plate (3) is fixedly connected with an anti-collision plate (14), and the outer wall of the anti-collision plate (14) is fixedly connected with an anti-collision block (15).

6. A municipal road bridge foundation impact cushion device according to claim 5, characterized in that: The inner wall of the anti-collision plate (14) is fixedly connected with a bridge column (16), and the top of the mounting plate (3) is fixedly connected with a limiting rod (17).

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