Bridge culvert drainage device

Abstract

The utility model provides a bridge culvert drainage device, including drainage well, the drainage well top installation and top cover, the top cover upper surface installs the import and export, install detachable apron in the import and export, the drainage well inner bottom is provided with many submersible pumps, the drainage well lower extreme outer surface installs the water inlet pipe, the top cover upper surface is away from the side of import and export and has set up the vertical hole, install the standpipe in the vertical hole, the standpipe lower end extends to the drainage well inner bottom, install detachable axial flow fan on the standpipe upper end, the utility model has the beneficial effect that realizes to the deep drainage well of depth and carries out forced ventilation, improves the security of personnel down to the drainage well.

Description

Technical Field

[0001] This utility model is a bridge and culvert drainage device, belonging to the field of bridge and culvert facilities. Background Technology

[0002] Bridge and culvert drainage is a crucial aspect of bridge and culvert engineering. Bridges and culverts are constantly exposed to the natural environment, where rainwater and groundwater can corrode their structures. Poor drainage allows water to seep into the concrete, leading to steel corrosion, concrete spalling, reduced structural strength, and impacting the bridge's lifespan and safety. Water accumulation in bridges and culverts also hinders vehicle traffic. Drainage systems, consisting of submersible pumps and other components, are constructed at the lowest point of the bridge or culvert. These pumps remove accumulated water. However, deeper drainage wells require personnel to descend to the bottom for inspection. Since drainage wells are often poorly ventilated, personnel entering them may experience poisoning or oxygen deprivation, posing a safety risk. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a bridge and culvert drainage device to solve the problems mentioned in the background technology. This utility model realizes forced ventilation of deep drainage wells and improves the safety of personnel going down into the drainage wells.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: a bridge and culvert drainage device, including a drainage well, a top cover installed on the top of the drainage well, an inlet and outlet installed on the upper surface of the top cover, a detachable cover plate installed inside the inlet and outlet, multiple submersible pumps installed at the bottom of the drainage well, an inlet pipe installed on the lower outer surface of the drainage well, a vertical hole opened on the side of the top surface of the top cover away from the inlet and outlet, a vertical pipe installed in the vertical hole, the lower end of the vertical pipe extending to the bottom of the drainage well, and a detachable axial flow fan installed at the upper end of the vertical pipe.

[0005] Furthermore, a connecting ring is fitted onto the upper end of the vertical tube and fixed to the vertical tube. The connecting ring is connected to the top cover by multiple screws.

[0006] Furthermore, a convex ring is provided on the upper side of the vertical hole, which is concentrically arranged with the vertical hole. The convex ring is connected and fixed to the top cover. There is a gap between the convex ring and the connecting ring. The screw passes through the connecting ring and is threadedly connected to the convex ring.

[0007] Furthermore, the convex ring has multiple slots evenly distributed on its annular side, and the upper surface of the convex ring has multiple notches communicating with the slots. The upper surface of the connecting ring has multiple small holes aligned with the notches. A plug is inserted into the slot, and a screw hole is formed on the upper surface of the plug. One end of the screw passes through the small hole and the notch and is threaded into the screw hole.

[0008] Furthermore, a ladder is installed inside the drainage well, and the ladder is located on the side of the drainage well near the water inlet pipe.

[0009] Furthermore, a filter screen frame is provided inside the water inlet pipe, and the filter screen frame is connected to the ladder.

[0010] Furthermore, a standing platform is provided on one side of the ladder, and the standing platform is installed inside the drainage well.

[0011] Furthermore, a boom is mounted on the surface of the submersible pump, the upper end of which extends into the inlet and outlet, and the upper end of the boom is connected to the inlet and outlet by screws.

[0012] Furthermore, a connecting seat is fitted onto the upper end of the vertical tube and fixed to the vertical tube, and the axial flow fan is connected to the connecting seat by bolts.

[0013] The beneficial effects of this utility model are:

[0014] 1. Install an axial fan at the top of the vertical pipe, run the axial fan and open the cover plate. Under the action of the axial fan, the outside space is forced into the drainage well through the vertical pipe. Then, the air in the drainage well is discharged through the inlet and outlet, achieving the purpose of forced ventilation in the drainage well. This helps to remove the polluted air in the drainage well, provides a continuous supply of fresh air, and improves the safety of personnel going down into the drainage well.

[0015] 2. When using screws to restrict the position of the vertical tube, the screws are screwed into the screw holes on the insert block after passing through the small holes on the connecting ring and the notches on the convex ring. This completes the assembly of the vertical tube and the top cover. The convex ring locally increases the thickness of the screw mounting area on the top cover. When the screw cannot be properly separated from the insert block due to corrosion, the screw is cut off using the gap between the connecting ring and the convex ring. Then, the insert block with the screw remaining is removed from the slot, which facilitates the replacement of the damaged vertical tube later. The convex ring and other parts can be reused without replacing the top cover. Attached Figure Description

[0016] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0017] Figure 1 This is a schematic diagram of the structure of a bridge and culvert drainage device according to the present invention;

[0018] Figure 2 This is a perspective view of a bridge and culvert drainage device according to the present invention.

[0019] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 This is a schematic diagram of the assembly of the vertical pipe, top cover and drainage well in a bridge and culvert drainage device according to the present invention.

[0021] Figure 5 for Figure 4 Enlarged view at point B in the middle;

[0022] In the diagram: 1-Drainage well, 2-Ladder, 3-Top cover, 4-Inlet / outlet, 5-Cover plate, 6-Axial fan, 7-Vertical pipe, 8-Hanging rod, 9-Standing platform, 10-Submersible pump, 11-Filter screen frame, 12-Inlet pipe, 13-Connecting seat, 14-Screw, 15-Plug, 16-Connecting ring, 17-Protruding ring, 18-Slot, 19-Small hole, 20-Notch. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] Please see Figure 1 and Figure 2 This utility model provides a technical solution: a bridge and culvert drainage device, including a drainage well 1, a top cover 3 installed on the top of the drainage well 1, an inlet and outlet 4 installed on the upper surface of the top cover 3, a detachable cover plate 5 installed inside the inlet and outlet 4, a plurality of submersible pumps 10 are arranged at the bottom inside the drainage well 1, a hanging rod 8 is installed on the surface of the submersible pump 10, the upper end of the hanging rod 8 extends into the inlet and outlet 4, and the upper end of the hanging rod 8 is connected to the inlet and outlet 4 by screws 14, and the hanging rod 8 restricts the position of the submersible pump 10.

[0025] See Figure 1 and Figure 2 A water inlet pipe 12 is installed on the lower outer surface of the drainage well 1. A ladder 2 is installed inside the drainage well 1. The ladder 2 is located inside the drainage well 1 on the side close to the water inlet pipe 12. A filter screen frame 11 is provided inside the water inlet pipe 12. The filter screen frame 11 is connected to the ladder 2. The filter screen frame 11 serves to collect larger debris that enters the drainage well 1. A standing platform 9 is provided on one side of the ladder 2. The standing platform 9 is installed inside the drainage well 1. The standing platform 9 provides a support carrier for personnel to operate inside the drainage well 1.

[0026] See Figures 1-5A vertical hole is provided on the side of the top surface of the top cover 3 away from the inlet and outlet 4. A vertical pipe 7 is installed in the vertical hole. The lower end of the vertical pipe 7 extends to the bottom of the drainage well 1. A detachable axial flow fan 6 is installed on the upper end of the vertical pipe 7. A connecting seat 13 is fitted on the upper end of the vertical pipe 7 and fixed to the vertical pipe 7. The axial flow fan 6 is connected to the connecting seat 13 by bolts, which facilitates the disassembly and assembly of the axial flow fan 6 and the vertical pipe 7. The axial flow fan 6 is installed on the upper end of the vertical pipe 7. The axial flow fan 6 is run and the cover plate 5 is opened. Then, under the action of the axial flow fan 6, the outside space is allowed to enter the drainage well 1 through the vertical pipe 7. Subsequently, the air in the drainage well 1 is discharged through the inlet and outlet 4, which realizes the purpose of forced ventilation in the drainage well 1. It is beneficial to remove the polluted air in the drainage well 1, provide continuous fresh air in the drainage well 1, and improve the safety of personnel going down into the drainage well 1.

[0027] See Figures 1-5 A connecting ring 16 is fitted onto the upper end of the vertical tube 7 and fixed to it. The connecting ring 16 is connected to the top cover 3 by multiple screws 14. A convex ring 17 is provided on the upper side of the vertical hole and is arranged concentrically with the vertical hole. The convex ring 17 is fixed to the top cover 3 and there is a gap between the convex ring 17 and the connecting ring 16. Multiple slots 18 are evenly opened on the annular side of the convex ring 17. Multiple notches 20 communicating with the slots 18 are opened on the upper surface of the convex ring 17. Multiple small holes 19 aligned with the notches 20 are opened on the upper surface of the connecting ring 16. A plug block 15 is inserted into the slot 18. A screw hole is opened on the upper surface of the plug block 15. One end of the screw 14 passes through the small hole 19 and the notch 20. When the screw 14 is used to restrict the position of the vertical tube 7, the screw 14 passes through the small hole 19 on the connecting ring 16 and the notch 20 on the convex ring 17 and is screwed into the screw hole on the insert block 15 to complete the assembly of the vertical tube 7 and the top cover 3. The convex ring 17 locally increases the thickness of the part of the top cover 3 where the screw 14 is installed. When the screw 14 cannot be properly separated from the insert block 15 due to corrosion, the screw 14 is cut off by the gap between the connecting ring 16 and the convex ring 17. Then the insert block 15 with the screw 14 remaining is taken out from the slot 18, which facilitates the replacement of the damaged vertical tube 7 later. The convex ring 17 and other parts can be reused without replacing the top cover 3.

[0028] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A bridge and culvert drainage device, comprising a drainage well, characterized in that: The top of the drainage well is fitted with a top cover, and the top cover has an inlet and outlet on its upper surface. A detachable cover plate is installed inside the inlet and outlet. Multiple submersible pumps are installed at the bottom of the drainage well. A water inlet pipe is installed on the lower outer surface of the drainage well. A vertical hole is opened on the side of the top cover away from the inlet and outlet. A vertical pipe is installed in the vertical hole. The lower end of the vertical pipe extends to the bottom of the drainage well. A detachable axial fan is installed at the upper end of the vertical pipe.

2. The bridge and culvert drainage device according to claim 1, characterized in that: The upper end of the vertical tube is fitted with a connecting ring that is fixed to the vertical tube, and the connecting ring is connected to the top cover by multiple screws.

3. A bridge and culvert drainage device according to claim 2, characterized in that: The upper side of the vertical hole is provided with a convex ring arranged concentrically with the vertical hole. The convex ring is connected and fixed to the top cover. There is a gap between the convex ring and the connecting ring. The screw passes through the connecting ring and is threadedly connected to the convex ring.

4. A bridge and culvert drainage device according to claim 3, characterized in that: The convex ring has multiple slots evenly distributed on its annular side. The upper surface of the convex ring has multiple notches communicating with the slots. The upper surface of the connecting ring has multiple small holes aligned with the notches. A plug is inserted into the slot. The upper surface of the plug has a screw hole. One end of the screw passes through the small hole and the notch and is threaded into the screw hole.

5. A bridge and culvert drainage device according to claim 4, characterized in that: A ladder is installed inside the drainage well, and the ladder is located on the side of the drainage well near the water inlet pipe.

6. A bridge and culvert drainage device according to claim 5, characterized in that: The water inlet pipe is equipped with a filter screen frame, which is connected to the ladder.

7. A bridge and culvert drainage device according to claim 6, characterized in that: A standing platform is provided on one side of the ladder, and the standing platform is installed inside the drainage well.

8. A bridge and culvert drainage device according to claim 7, characterized in that: The submersible pump is equipped with a boom, the upper end of which extends into the inlet and outlet, and the upper end of the boom is connected to the inlet and outlet by screws.

9. A bridge and culvert drainage device according to claim 8, characterized in that: The upper end of the vertical tube is fitted with a connecting seat that is fixed to the vertical tube, and the axial flow fan is connected to the connecting seat by bolts.

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