A drainage cross pipe dredging device of a rainwater collection well

Abstract

The utility model provides a kind of drainage cross pipe dredging device of rainwater collection well, belong to municipal drainage equipment technical field, for the rainwater collection well drainage cross pipe is carried out dredging operation.The technical scheme is: guide pipe is vertically placed round pipe, the lower end of guide pipe has elbow pipe, the pipe orifice of elbow pipe is opposite with the water inlet of rainwater collection well drainage cross pipe, the upper end of guide pipe is located above the road surface of rainwater collection well, steel strand is worn in guide pipe, the front end of steel strand is inserted into the drainage cross pipe of rainwater collection well lower end, the front end of steel strand is connected with jacks, jack is embedded into drainage cross pipe, handle is installed at the rear end of steel strand, handle is located above rainwater collection well.The utility model is simple in structure, convenient to use, can carry out dredging to the drainage cross pipe connected between rainwater collection well and rainwater pipe well, reduces the difficulty of personnel operation, reduces the labor intensity of staff, improves dredging work efficiency.

Description

Technical Field

[0001] This utility model relates to a dredging device for the horizontal drainage pipe of a rainwater collection well, belonging to the technical field of municipal drainage equipment. Background Technology

[0002] Stormwater drainage networks are crucial drainage and flood control facilities in cities, towns, industrial parks, railway stations, airports, overpasses, tunnels, and other areas. They collect and discharge rainwater during rainfall to prevent flooding and ensure safe passage during heavy downpours. Simultaneously, they serve as infrastructure for the resource-based reuse of collected rainwater. Currently, urban sewage and stormwater drainage networks are two separate drainage systems. Under normal circumstances, sewage is discharged without passing through the stormwater drainage network; the stormwater drainage network is used to collect and discharge rainwater.

[0003] Urban road stormwater drainage networks typically consist of stormwater collection wells, stormwater manholes, and stormwater drainage pipes. Stormwater collection wells are arranged sequentially along both sides of the road edge, with openings at the top covered by grates. Stormwater manholes are located on the inner side of the road, covered by manhole covers to avoid obstructing traffic. The lower end of the stormwater manhole connects to the stormwater drainage pipes, allowing for unclogging and maintenance of these pipes. A horizontal drainage pipe connects the stormwater collection wells and stormwater manholes. Rainwater flows through the grates into the collection wells, then through the horizontal drainage pipes into the stormwater manholes, and finally exits through the stormwater drainage pipes connected to the manholes.

[0004] Due to regional variations in rainfall, rainwater in northern regions is concentrated in summer, while rainfall is scarce in autumn and winter. This causes the region's stormwater drainage network and other facilities to periodically dry out. Consequently, dust, debris, and garbage from the roads easily enter the stormwater collection wells through the grates, accumulating and clogging the horizontal drain pipes connected to the bottom of the collection wells. To prevent drainage problems, stormwater drainage facilities are typically dredged before the rainy season, removing silt from stormwater collection wells and drain pipes. However, dredging the horizontal drain pipes from manholes near the center of the road would obstruct traffic. Therefore, dredging is usually carried out from the stormwater collection wells on either side of the road. These manholes are narrow and deep, limiting the work space and hindering the movement of personnel and equipment. This results in difficult and labor-intensive cleaning of the clogged horizontal drain pipes, making construction inconvenient and inefficient, thus necessitating improvements. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a sludge removal device for the drainage horizontal pipe of a rainwater collection well. This sludge removal device can sludge the drainage horizontal pipe connecting the rainwater collection well to the rainwater pipe well, reduce the difficulty of personnel operation, reduce the labor intensity of workers, and improve the efficiency of sludge removal work.

[0006] The technical solution to the above technical problem is:

[0007] A sludge removal device for the drainage horizontal pipe of a rainwater collection well includes a guide pipe, a steel strand, a top rod, and a handle. The guide pipe is a vertically placed circular pipe with a bend at its lower end. The opening of the bend is opposite to the inlet of the drainage horizontal pipe of the rainwater collection well. The upper end of the guide pipe is located on the road surface above the rainwater collection well. The steel strand is threaded through the guide pipe, and its front end extends into the drainage horizontal pipe at the lower end of the rainwater collection well. The front end of the steel strand is connected to the top rod, which is embedded in the drainage horizontal pipe. The handle is installed at the rear end of the steel strand and is located above the rainwater collection well.

[0008] The aforementioned rainwater collection well drainage horizontal pipe sludge removal device has a guide pipe composed of multiple round pipe sections connected by flanges. The front end of the lower bend of the guide pipe has a tapered pipe, and the rear end of the tapered pipe with a large diameter is connected to the front end of the lower bend of the guide pipe through a flange. The front end of the tapered pipe with a small diameter is inserted into the inlet of the rainwater collection well drainage horizontal pipe.

[0009] The aforementioned rainwater collection well drainage horizontal pipe dredging device comprises a top rod consisting of a drill bit, an installation rod, and a fixing bolt. The front end of the drill bit is a triangular plate, and the rear end of the drill bit is a cylindrical body with threads on the inner wall of the cylindrical body. The installation rod is a cylinder with threads on the outer wall of the cylinder that match the threads on the inner wall of the cylinder at the rear of the drill bit. The cylindrical body at the rear of the drill bit is fitted onto the front end of the installation rod. The rear end of the installation rod has a connecting hole along the axis of the rod body. The front end of the steel strand is inserted into the connecting hole at the rear of the installation rod. The side wall of the connecting hole has a screw hole, and the fixing bolt is tightened to the steel strand through the screw hole.

[0010] The aforementioned rainwater collection well drainage horizontal pipe sludge removal device has a handle that is a horizontal bar with a round hole in the middle. The diameter of the round hole matches the diameter of the steel strand. The rear part of the steel strand passes through the round hole in the handle. There is a screw hole on the wall of the round hole, and the locking bolt is tightened to the steel strand through the screw hole.

[0011] The aforementioned rainwater collection well drainage horizontal pipe dredging device also includes a dredging plug. The front part of the dredging plug is cylindrical, the front end of the dredging plug is conical, and the rear part of the dredging plug is cylindrical. The inner wall of the cylindrical body has threads. The inner wall threads of the rear cylindrical body of the dredging plug match the outer wall threads of the cylindrical body of the mounting rod of the top rod. The rear cylindrical body of the dredging plug is fitted onto the front end of the mounting rod. The diameter of the cylindrical body of the dredging plug is 50% to 80% smaller than the inner diameter of the drainage horizontal pipe of the rainwater collection well.

[0012] The aforementioned rainwater collection well drainage horizontal pipe dredging device also includes a cleaning pump and a flexible water pipe. The flexible water pipe is connected to the cleaning pump, which is connected to the water delivery pipeline. The cleaning pump is placed on the road surface, and the flexible water pipe is sent into the guide pipe along with the steel strand. The front end of the flexible water pipe is opposite to the drill bit of the top rod at the front end of the steel strand.

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

[0014] The guide tube of this invention is placed in the rainwater collection well. The guide tube constrains and guides the steel strand of the drainage horizontal pipe extending into the rainwater collection well, ensuring stable forward movement of the steel strand. The guide tube is composed of multiple sections of circular tube, and its length is adjustable. The drill bit at the front end of the push rod is triangular, which can agitate the silt accumulated in the drainage horizontal pipe, facilitating the forward movement of the push rod. The drill bit of the push rod is threadedly connected to the mounting rod, allowing the drill bit to be removed for replacement of the silt-clearing plug. A handle is installed at the rear of the steel strand for easy access by the operator. The handle allows the steel strand to be pulled and rotated, enabling the push rod at the front end of the steel strand to pass through the silt in the drainage horizontal pipe and move the silt. The handle can also be adjusted on the steel strand for easy operation during movement. The cleaning plug is connected to the mounting rod of the push rod by threads, allowing the cleaning plug to be installed after the drill bit is removed from the push rod, and used to clean the silt in the drainage horizontal pipe. The cleaning pump and flexible water pipe can inject high-pressure water into the drainage horizontal pipe, continuously flushing and loosening the blockages, assisting the push rod in clearing the drainage horizontal pipe.

[0015] This utility model has a simple structure and is easy to use. It can dredge the horizontal drainage pipes connecting the rainwater collection well to the rainwater pipe well, reducing the difficulty of personnel operation, reducing the labor intensity of workers, and improving the efficiency of dredging work. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a structural diagram of a rainwater collection well and a rainwater pipe well.

[0018] The following are the markings in the diagram: 1. Guide pipe; 2. Steel strand; 3. Top rod; 4. Handle; 5. Tapered pipe; 6. Flange; 7. Drill bit; 8. Mounting rod; 9. Connecting hole; 10. Fixing bolt; 11. Locking bolt; 12. Dredging plug; 13. Rainwater collection well; 14. Well grate; 15. Drainage horizontal pipe; 16. Rainwater pipe well; 17. Manhole cover; 18. Upstream rainwater pipe; 19. Downstream rainwater pipe. Detailed Implementation

[0019] This utility model consists of a guide tube 1, a steel strand 2, a top rod 3, a handle 4, a sludge removal plug 12, a cleaning pump, and a flexible water pipe.

[0020] Figure 1 The guide pipe 1 is a vertically placed circular pipe, with its upper end positioned above the rainwater collection well 13 on the road surface. The guide pipe 1 consists of multiple sections of circular pipe connected by flanges. The length of the guide pipe 1 can be adjusted by selecting the number of circular pipes to accommodate different heights of the rainwater collection well 13. The lower end of the guide pipe 1 has a bend, and the front end of the bend has a tapered pipe 5. The larger diameter end of the tapered pipe 5 is connected to the front end of the lower bend of the guide pipe 1 via a flange 6. The smaller diameter end of the tapered pipe 5 is inserted into the inlet of the drainage horizontal pipe 15 of the rainwater collection well 13. The guide pipe 1, placed within the rainwater collection well 13, constrains and guides the steel strand 2 extending into the drainage horizontal pipe 15, ensuring its stable forward movement.

[0021] Figure 1 The diagram shows that the steel strand 2 is threaded through the guide pipe 1, and the front end of the steel strand 2 extends into the drainage horizontal pipe 15 at the lower end of the rainwater collection well 13. The front end of the steel strand 2 is connected to the push rod 3, and the push rod 4 is embedded in the drainage horizontal pipe 15. The push rod 3 is used to push the silt in the drainage horizontal pipe 15.

[0022] Figure 1 The top rod 3 is shown to consist of a drill bit 7, an mounting rod 8, and a fixing bolt 10.

[0023] The front end of drill bit 7 is a triangular plate, and the rear end of drill bit 7 is a cylindrical body with threads on the inner wall. Mounting rod 8 is a cylinder with threads on the outer wall that match the threads on the inner wall of the cylinder at the rear of drill bit 7. The cylindrical body at the rear of drill bit 7 is fitted onto the front end of the rod of mounting rod 8. Drill bit 7 can be connected to and disassembled with mounting rod 8 via threads, facilitating the replacement of sludge plug 12.

[0024] The rear of the mounting rod 8 has a connecting hole 9 along the axis of the rod body. The front end of the steel strand 2 is inserted into the connecting hole 9 at the rear of the mounting rod 8. The side wall of the connecting hole 9 has a screw hole. The fixing bolt 10 is tightened to the steel strand 2 through the screw hole, so that the top rod 3 is fixedly connected to the front end of the steel strand 2. When the steel strand 2 is pulled and rotated, it drives the top rod 3 to move back and forth and rotate. The top rod 3 can push and stir the silt in the drainage horizontal pipe 15.

[0025] Figure 1 The handle 4 is installed at the rear end of the steel strand 2 and is located above the rainwater collection well 14. The handle 4 is a horizontal bar with a central circular hole whose diameter matches that of the steel strand 2. The rear part of the steel strand 2 passes through this hole. A screw hole is located on the wall of the circular hole, through which a locking bolt 11 is tightened to the steel strand 2. The operator can pull and rotate the steel strand 2 using the handle 4, and the handle 4 can be adjusted in position on the steel strand 2 for easy operation.

[0026] Figure 1 The front of the sludge-removing plug 12 is cylindrical, the front end of the plug 12 is conical, and the rear part of the plug 12 is cylindrical. The inner wall of the cylindrical part of the plug 12 is threaded, and the inner thread of the rear cylindrical part of the plug 12 matches the outer thread of the cylindrical part of the mounting rod 8 of the push rod 3. The rear cylindrical part of the plug 12 is fitted onto the front end of the mounting rod 8. The operator can install the sludge-removing plug 12 after removing the drill bit 7 from the push rod 3, and use the plug 12 to clean the sludge in the drainage horizontal pipe 15. The diameter of the cylindrical part of the plug 12 is 50% to 80% smaller than the inner diameter of the drainage horizontal pipe 15 of the rainwater collection well 13 to avoid excessive resistance from the sludge in the drainage horizontal pipe 15 and to ensure that the plug 12 can move in the drainage horizontal pipe 15. During use, the plug 12 can be moved back and forth repeatedly to clean the sludge in the drainage horizontal pipe 15.

[0027] Figure 1 The diagram shows that the cleaning pump and flexible hose can assist the jack rod 3 in clearing severe silt blockages. The flexible hose is connected to the cleaning pump, which is connected to the water supply pipeline. The cleaning pump is placed on the road surface, and the flexible hose is sent into the guide pipe 1 along with the steel strand 2. The front end of the flexible hose is aligned with the drill bit 7 of the jack rod 3 at the front end of the steel strand 2. The cleaning pump and flexible hose can inject high-pressure water into the drainage horizontal pipe 15, continuously flushing and loosening the blockages, assisting the jack rod 3 in clearing the drainage horizontal pipe 15.

[0028] The usage process of this utility model is as follows:

[0029] First, clear the silt inside the rainwater collection well 13 to expose the inlet of the drainage horizontal pipe 15 at the bottom of the well;

[0030] Then, the guide pipe 1 is placed into the rainwater collection well 13. The front end of the tapered pipe 5 at the lower end of the guide pipe 1 is aligned with the inlet of the drainage horizontal pipe 15. The length of the guide pipe 1 can be adjusted by adjusting the number of round pipes in the upper part of the guide pipe 1 to adapt to different heights of the rainwater collection well 13, so that the upper part of the guide pipe 1 protrudes 0.8~1.2m above the ground, making it easier for the dredging workers to exert force.

[0031] Next, insert the front end of the steel strand 2 into the connecting hole 9 at the rear of the mounting rod 8 of the top rod 3, and use the fixing bolt 10 to tighten the connection between the steel strand 2 and the connecting hole 8 at the rear of the top rod 3 through the screw hole;

[0032] Place the push rod 3 and the steel strand 2 into the guide tube 1, push the steel strand 2 forward, and under the constraint of the guide tube 1 wall, the push rod 3 and the steel strand 2 reach the blockage of the drainage horizontal pipe 15.

[0033] The handle 4 is fixedly connected to the rear end of the steel strand 2. The operator holds the handle 4 and pushes and pulls the steel strand 2. At the same time, the handle 4 is rotated so that the drill bit 7 of the push rod 3 at the front end of the steel strand 2 can stir and drill into the blockage of the drainage horizontal pipe 15. The elasticity of the steel strand 2 is used to transmit force so that the push rod 3 can penetrate the drainage horizontal pipe 15 until it penetrates the blockage section.

[0034] When the blockage in the horizontal drain pipe 15 is too tight or too long, and the steel strand 2 is difficult to clear by pushing the steel strand 2, use a sledgehammer to strike the handle 4. The handle 4 provides power for the steel strand 2 to penetrate the blockage.

[0035] After the steel strand 2 passes through the blockage layer, it is pulled back and forth to further clear the blockage. At the same time, the flexible water pipe connected to the cleaning pump extends into the drainage horizontal pipe 15 along the guide pipe 1 to provide high-pressure water flow and accelerate the clearing of the blockage.

[0036] If the above steps cannot completely clear the silt in the drainage horizontal pipe 15, the steel strand 2 will continue to be extended into the drainage horizontal pipe 15 until it extends into the rainwater pipe well 16 in the center of the road. After the air is fully replaced and the content of toxic gases and oxygen in the rainwater pipe well 16 is tested and found to be qualified, personnel will enter the rainwater pipe well 16, remove the top rod 3 at the front end of the steel strand 2, replace it with the silt-clearing plug 12, and then pull the steel strand 2 to pull the silt-clearing plug 12 into the drainage horizontal pipe 15.

[0037] Pull the steel strand 2 again, along with the sludge plug 12, to remove the sludge from the drainage horizontal pipe 15, thus completing the sludge removal work of the drainage horizontal pipe 15.

[0038] Using this utility model to clean the blockage of the drainage horizontal pipe 15 can complete the work efficiently and with high quality. At the same time, the workers are mostly outside the rainwater collection well 13, resulting in low labor intensity, no poor posture during operation, effective control of operational risks, and minimal impact on rainwater drainage facilities.

[0039] An embodiment of this utility model is as follows:

[0040] The rainwater collection well 13 is 1500 mm long, 450 mm wide, and 2000 mm high;

[0041] The horizontal drainage pipe 15 has a diameter of DN200mm, a length of 2600mm, and a slope of 2‰.

[0042] The diameter of the guide tube 1 is DN100-150mm, and the minimum diameter of the front tapered tube 5 is DN50-80mm;

[0043] Steel strand 2 is selected from standard 7-wire steel strands with suitable elasticity, such as 1×7×9.50, 1×7×12.7, or 1×7×15.20.

[0044] The length of the push rod 3 is 150-200mm, and the diameter is 25-30mm;

[0045] The length of the dredging plug 12 is 100-150mm and the diameter is 35-45mm.

Claims

1. A device for dredging the horizontal drainage pipe of a rainwater collection well, characterized in that: It includes a guide tube (1), a steel strand (2), a top rod (3), and a handle (4). The guide tube (1) is a vertically placed round tube with a bend at the lower end. The opening of the bend is opposite to the inlet of the drainage horizontal pipe (15) of the rainwater collection well (13). The upper end of the guide tube (1) is located on the road surface above the rainwater collection well (13). The steel strand (2) is threaded through the guide tube (1). The front end of the steel strand (2) extends into the drainage horizontal pipe (15) at the lower end of the rainwater collection well (13). The front end of the steel strand (2) is connected to the top rod (3). The top rod (3) is embedded in the drainage horizontal pipe (15). The handle (4) is installed at the rear end of the steel strand (2) and is located above the rainwater collection well (13).

2. The sludge removal device for the drainage horizontal pipe of the rainwater collection well according to claim 1, characterized in that: The guide pipe (1) is composed of multiple round pipe sections, which are connected by flanges (6). The front end of the lower bend of the guide pipe (1) has a tapered pipe (5). The large diameter end of the tapered pipe (5) is connected to the front end of the lower bend of the guide pipe (1) through the flange (6). The small diameter end of the front end of the tapered pipe (5) is inserted into the inlet of the drainage horizontal pipe (15) of the rainwater collection well (13).

3. The sludge removal device for the drainage horizontal pipe of the rainwater collection well according to claim 1, characterized in that: The top rod (3) consists of a drill bit (7), an installation rod (8), and a fixing bolt (10). The front end of the drill bit (7) is a triangular plate, and the rear part of the drill bit (7) is a cylindrical body with threads on the inner wall. The installation rod (8) is a cylinder with threads on the outer wall of the cylinder that match the threads on the inner wall of the cylinder at the rear of the drill bit (7). The cylindrical body at the rear of the drill bit (7) is fitted onto the front end of the rod of the installation rod (8). The rear part of the installation rod (8) has a connecting hole (9) along the axis of the rod. The front end of the steel strand (2) is inserted into the connecting hole (9) at the rear of the installation rod (8). The side wall of the connecting hole (9) has a screw hole, and the fixing bolt (10) is tightened to the steel strand (2) through the screw hole.

4. The sludge removal device for the drainage horizontal pipe of the rainwater collection well according to claim 1, characterized in that: The handle (4) is a crossbar. There is a round hole in the middle of the handle (4). The diameter of the round hole matches the diameter of the steel strand (2). The rear part of the steel strand (2) is inserted into the round hole of the handle (4). There is a screw hole on the wall of the round hole. The locking bolt (11) is connected to the steel strand (2) through the screw hole.

5. The sludge removal device for the horizontal drainage pipe of the rainwater collection well according to claim 1, characterized in that: It also has a sludge plug (12), the front part of which is cylindrical, the front end of which is conical, and the rear part of which is cylindrical. The inner wall of the cylindrical body has threads. The inner wall thread of the rear cylindrical body of the sludge plug (12) matches the outer wall thread of the cylindrical body of the mounting rod (8) of the top rod (3). The rear cylindrical body of the sludge plug (12) is fitted onto the front end of the rod of the mounting rod (8). The diameter of the cylindrical body of the sludge plug (12) is 50% to 80% smaller than the inner diameter of the drainage horizontal pipe (15) of the rainwater collection well (13).

6. The sludge removal device for the drainage horizontal pipe of the rainwater collection well according to claim 1, characterized in that: It also has a cleaning pump and a flexible water pipe. The flexible water pipe is connected to the cleaning pump, and the cleaning pump is connected to the water supply pipeline. The cleaning pump is placed on the road surface. The flexible water pipe is sent into the guide pipe (1) along with the steel strand (2). The front end of the flexible water pipe is opposite to the drill bit (7) of the top rod (3) at the front end of the steel strand (2).

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