Debris flow collision prevention device for bridge pier

Abstract

The utility model relates to the technical field of bridge pier collision prevention, and discloses a bridge pier debris flow collision prevention device which comprises a fixed cylinder fixedly connected to a bridge pier and an annular plate rotationally connected to the fixed cylinder, a mounting frame is fixedly connected to the outer side of the annular plate, and an outer protection plate is mounted on the outer side of the mounting frame. The multiple sets of mounting frames and the multiple sets of outer protection plates are annularly and evenly connected to the outer side of the annular plate, and buffering connecting rods are arranged between the outer protection plates and the mounting frames. Due to the arrangement of the buffering ribs, the strength of the outer protection plate can be improved, when debris flow occurs, on one hand, the outer protection plate is matched with the buffering connecting rods to form an internal safety space to resist the debris flow, and therefore the inner bridge pier is protected, and on the other hand, the outer protection plate and the mounting frame can rotate outside the fixing cylinder. Therefore, debris flow in contact with the outer protective plate deflects and is prevented from colliding with the pier.

Description

Technical Field

[0001] The utility model relates to the field of bridge pier anti-collision, in particular to a bridge pier anti-mud and rock flow collision device. Background Art

[0002] Debris flows are a highly destructive natural disaster. The damage caused by glacial snowmelt or brief, torrential rains is truly staggering. Debris flows also frequently destroy bridge piers and bridges. Damage to bridge piers and bridges not only results in direct economic losses but also often results in extremely serious adverse consequences, such as prolonged traffic disruptions.

[0003] Therefore, it is necessary to protect the affected bridge piers. The existing bridge pier protection devices are generally fixed directly on the bridge piers. Under the impact of mudslides, the main impact force is still borne by the bridge piers. After several mudslide impacts, sometimes the protection devices are not damaged. However, during the bridge pier inspection, it is found that the reinforced concrete piers wrapped therein have already been sheared off, which poses a huge safety hazard to vehicles traveling on the bridge, especially heavy vehicles. Utility Model Content

[0004] In order to solve the technical problem of debris flow colliding with bridge piers, the utility model provides a device for preventing bridge piers from being impacted by debris flow.

[0005] The utility model adopts the following technical solution: a device for preventing debris flow from impacting a bridge pier, comprising a fixing cylinder fixedly connected to the bridge pier, and further comprising:

[0006] an annular plate, the annular plate being rotatably connected to the fixed cylinder;

[0007] A mounting frame, wherein the mounting frame is provided in multiple groups and is evenly connected to the outside of the annular plate in an annular shape;

[0008] An outer guard plate is movably mounted on the outside of the mounting frame, and a buffer connecting rod is provided between the outer guard plate and the mounting frame.

[0009] With this technical solution, eight mounting brackets and eight outer guard plates are provided, evenly connected to the annular plate. The mounting brackets and outer guard plates are rotatably connected via the annular plate and a fixed tube. If the outer guard plate is impacted by a debris flow, it will not only dent inward, but also deform and absorb energy. This will also cause the buffer link to rotate, stretching the hook spring and supporting the outer guard plate, thereby protecting the internal pier structure. The outer guard plate and mounting bracket can rotate as a whole. If a debris flow hits the outer guard plate, the outer guard plate rotates, deflecting the debris flow and preventing it from impacting the bridge pier.

[0010] As a further improvement of the above solution, two fixing tubes are provided, and each fixing tube is provided with two mounting slots.

[0011] As a further improvement of the above solution, the annular plate includes an outer annular plate and an inner annular plate, one side of the outer annular plate and the inner annular plate is fixedly connected to the mounting frame, and one side is fixedly connected with an annular clamping ring, which is movably clamped in the mounting slot.

[0012] Through the above technical solution, the annular plate is rotatably connected to the fixed cylinder.

[0013] As a further improvement of the above solution, an installation opening is opened on the outer side wall of the installation frame, and the installation opening is filled with a filling layer.

[0014] As a further improvement of the above solution, the outer guard plate includes an impact portion and connecting portions at both ends of the impact portion, a buffer rib is fixedly connected to the outer side wall of the impact portion, and the connecting portion is inserted into the installation opening.

[0015] As a further improvement of the above solution, fixing seats are installed on the outer wall of the mounting frame and the inner wall of the outer guard plate.

[0016] As a further improvement of the above scheme, the buffer link includes two links and a hook spring connecting the two links, the two ends of the link are respectively rotatably connected to the mounting frame and the fixing seat of the outer guard plate, and the two ends of the hook spring are respectively connected to the two links.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] The utility model can increase the strength of the outer guard plate by setting the buffer ribs. When a debris flow occurs, on the one hand, the outer guard plate cooperates with the buffer connecting rod to form an internal safety space to resist the debris flow, thereby protecting the internal bridge piers. On the other hand, the outer guard plate and the mounting frame can rotate outside the fixed tube, thereby deflecting the debris flow in contact with the outer guard plate, thereby preventing the debris flow from colliding with the bridge piers. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a cross-sectional view of the overall structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the connection relationship between the mounting frame, outer guard plate and annular plate of the utility model;

[0022] Figure 4 This is an exploded diagram of the connection between the mounting frame and the outer guard plate of the utility model.

[0023] Explanation of main symbols: 1. Fixing cylinder; 11. Mounting slot; 2. Annular plate; 21. Outer annular plate; 22. Inner annular plate; 23. Clamping ring; 3. Mounting frame; 31. Mounting port; 32. Filling layer; 4. Outer guard plate; 41. Impact part; 42. Connecting part; 43. Buffer rib; 5. Buffer connecting rod; 51. Connecting rod; 52. Hook spring; 53. Fixed seat. DETAILED DESCRIPTION

[0024] Below, the present invention is further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0025] Please combine Figure 1-Figure 4 The present embodiment of a debris flow protection device for bridge piers includes a cylindrical bridge pier and two fixing tubes 1, each fixedly connected to the pier. When installed, one fixing tube 1 is positioned below the water surface, while the other is positioned above. Each fixing tube 1 is provided with two annular mounting slots 11.

[0026] An annular plate 2 is provided corresponding to the fixed cylinder 1. The annular plate 2 corresponds to the fixed cylinder 1. The annular plate 2 comprises an outer annular plate 21 and an inner annular plate 22. A retaining ring 23 is fixedly connected to the inner side of each of the inner and outer annular plates 22 and 21. The retaining ring 23 engages within the mounting groove 11 and is freely rotatable. Thus, the inner and outer annular plates 22 and 21 are rotatably connected to the fixed cylinder 1 via the retaining ring 23.

[0027] The outer side of the annular plate 2 is provided with a mounting bracket 3, which is fixedly connected to both the outer annular plate 21 and the inner annular plate 22. In this embodiment, eight mounting brackets 3 are provided, which are evenly arranged in an annular shape and distributed on the outer side of the annular plate 2.

[0028] An outer guard plate 4 is provided on the outside of the mounting frame 3, and eight outer guard plates 4 are also provided corresponding to the mounting frame 3. In order to install the outer guard plate 4, two symmetrical mounting openings 31 are first opened on the side wall of the mounting frame 3. The outer guard plate 4 includes an impact portion 41 that withstands the impact of the debris flow and a connecting portion 42 connected to both ends of the impact portion 41, and the impact portion 41 and the connecting portion 42 are integrally formed. That is, the upper and lower connecting portions 42 of the outer guard plate 4 are respectively inserted into the two mounting openings 31, and the mounting openings 31 are also filled with a rubber filling layer 32. The outer guard plate 4 can be made of a high-strength and lightweight plastic material such as polyurethane, and polyurethane also has good resilience.

[0029] The eight outer guard plates 4 form a "lantern" shape, with the center of the impact portion 41 of the outer guard plate 4 protruding outward. In addition, buffer ribs 43 are fixedly provided on the outer side wall of the impact portion 41. That is, when encountering a collision, the debris flow first contacts the buffer ribs 43 and then the impact portion 41.

[0030] To further enhance the impact resistance of the outer guard plate 4, a buffer link 5 is connected between the outer guard plate 4 and the mounting bracket 3. To mount the buffer link 5, mounting brackets 53 are fixedly attached to the inner sidewall of the outer guard plate 4 and the sidewall of the mounting bracket 3. The buffer link 5 comprises two connecting rods 51 and a hook spring 52. The ends of the connecting rod 51 are pivotally connected to the mounting bracket 3 and the mounting bracket 53 of the outer guard plate 4, respectively. The ends of the hook spring 52 are connected to the two connecting rods 51.

[0031] The implementation process and principle of a device for preventing debris flow collision on a bridge pier in the embodiment of the present application are as follows:

[0032] (1): During installation, one of the installation tubes is below the water surface and the other is above the water surface. When the debris flow hits the outer guard plate 4, the outer guard plate 4 may sag inward, deform and absorb energy. Since the impact part 41 of the eight outer guard plates 4 protrudes outward. Therefore, there is space between the inner side of the outer guard plate 4 and the mounting frame 3 and the bridge pier, and the deformation of the outer guard plate 4 will not damage the bridge pier. The connecting rod 51 can also support the outer guard plate 4 from the inside. If the outer guard plate 4 is deformed and sags inward, it will drive the connecting rod 51 to rotate, and the hook spring 52 will be stretched. Under the action of the restoring force of the hook spring 52, the connecting rod 51 will be driven to reset and the outer guard plate 4 will be supported again.

[0033] (2): Buffer ribs 43 are also provided on the outside of the outer guard plate 4. The buffer ribs 43 are integrally formed with the outer guard plate 4. They can enhance the overall strength of the outer guard plate 4. When a debris flow occurs, the debris flow impacts the buffer ribs 43. Since the outer guard plate 4 and the mounting frame 3 are rotatably connected to the fixed cylinder 1 through the annular plate 2. Therefore, when a debris flow impacts, the outer guard plate 4 and the mounting frame 3 may rotate. When the outer guard plate 4 rotates, it will change the trajectory of the debris flow, causing the debris flow in contact with the outer guard plate 4 to be deflected and will not continue to accumulate in front of the outer guard plate 4.

[0034] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A device for preventing debris flow collision on a bridge pier, characterized in that: It includes a fixing cylinder fixedly connected to the bridge pier, and also includes: an annular plate, the annular plate being rotatably connected to the fixed cylinder; A mounting frame, wherein the mounting frame is provided in multiple groups and is evenly connected to the outside of the annular plate in an annular shape; An outer guard plate is movably mounted on the outside of the mounting frame, and a buffer connecting rod is provided between the outer guard plate and the mounting frame.

2. The device for preventing debris flow from impacting a bridge pier according to claim 1, characterized in that: There are two fixing tubes, and each fixing tube is provided with two mounting slots.

3. The device for preventing debris flow from impacting a bridge pier according to claim 2, characterized in that: The annular plate includes an outer annular plate and an inner annular plate. One side of the outer annular plate and the inner annular plate is fixedly connected to the mounting frame, and one side is fixedly connected with an annular clamping ring, which is movably clamped in the mounting slot.

4. The device for preventing debris flow from impacting a bridge pier according to claim 1, wherein: An installation opening is provided on the outer side wall of the installation frame, and a filling layer is filled in the installation opening.

5. The device for preventing debris flow from impacting a bridge pier according to claim 4, characterized in that: The outer guard plate includes a striking portion and connecting portions at both ends of the striking portion. A buffer rib is fixedly connected to an outer side wall of the striking portion, and the connecting portion is inserted into the mounting opening.

6. The device for preventing debris flow from impacting a bridge pier according to claim 1, wherein: Fixing seats are installed on the outer side wall of the mounting frame and the inner wall of the outer guard plate.

7. The device for preventing debris flow from impacting a bridge pier according to claim 6, wherein: The buffer connecting rod includes two connecting rods and a hook spring connecting the two connecting rods. The two ends of the connecting rod are respectively rotatably connected to the fixing seats of the mounting frame and the outer guard plate, and the two ends of the hook spring are respectively connected to the two connecting rods.

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