Drainage equipment for construction engineering and method of using the same

Abstract

The present invention relates to the technical field of drainage equipment for construction projects, and in particular to a drainage equipment for construction projects and a method of using the same, comprising a threaded rod, a guide column for guiding and measuring water levels, and an upper top plate, wherein the upper and lower ends of the threaded rod are rotatably connected to the upper top plate and the bottom plate respectively, and the upper top plate and the other end of the bottom plate are fixedly connected via the guide column, an adjusting motor is fixedly connected to one side of the upper end of the upper top plate, a drainage pipe is arranged in the middle of the upper top plate, a water outlet of the drainage pipe is fixedly connected to a water inlet of a water pump, a sealing mechanism is installed in the middle of the bottom end of the bottom sealing mechanism, and in the present invention, sewage can be allowed to enter the interior of the column shell from the top during drainage, and heavier fixed impurities can be effectively prevented from entering the pipeline to cause blockage. After the sewage is discharged, the water inlet hole can be sealed by a buoyancy ring plate, thereby preventing foreign matter inside the drainage pipe from diffusing to the outside when the drainage pipe is idle.

Description

Technical Field

[0001] The present invention relates to the technical field of construction engineering drainage equipment, in particular to construction engineering drainage equipment and a use method thereof. Background Art

[0002] Drainage equipment for construction projects mainly includes a series of facilities for collecting, conveying and discharging wastewater, rainwater and groundwater generated during construction. These equipment usually involve drainage pipes, water collection wells, mud pumps, precipitation equipment, sewage lifts and related control systems. Their role is to ensure the dryness of the construction site, prevent water accumulation from affecting the construction progress and safety, and also avoid pollution of the surrounding environment by construction water. The reasonable configuration and efficient operation of these drainage equipment are of great significance to ensuring construction quality and project progress;

[0003] At present, when draining water in construction projects, wastewater is generally discharged directly into the sewer; or the wastewater is sucked into the sewer by a pump;

[0004] When the pump body pumps wastewater into the sewer, on the one hand, the solids in the wastewater will enter the pipe of the drainage pump along with the wastewater, which is easy to be blocked in the pipe. On the other hand, after drainage, the odor in the pipe will spread to the outside and affect the quality of the air environment. Therefore, in view of the above problems, a construction engineering drainage equipment and its use method are proposed. Summary of the invention

[0005] The purpose of the present invention is to provide a construction engineering drainage device and a method of using the same, so as to solve the problem that when the pump body pumps wastewater into the sewer, on the one hand, solids in the wastewater will enter the pipe of the drainage pump along with the wastewater and easily become blocked in the pipe; on the other hand, after drainage, the odor in the pipe will spread to the outside, affecting the quality of the air environment.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A construction engineering drainage device and a method of using the same, comprising a threaded rod, a guide column for guiding and measuring water level, and an upper top plate, wherein the upper and lower ends of the threaded rod are rotatably connected to the upper top plate and the bottom plate, respectively, and the upper top plate and the other end of the bottom plate are fixedly connected via the guide column, an adjusting motor is fixedly connected to one side of the upper end of the upper top plate, a drainage pipe is arranged in the middle of the upper top plate, a water outlet of the drainage pipe is fixedly connected to a water inlet of a water pump, a sealing mechanism is installed in the middle of the bottom end of the bottom sealing mechanism, and the upper end of the bottom sealing mechanism A filtering mechanism is installed on the outside, and connecting blocks are fixedly connected at both ends of the filtering mechanism; the filtering mechanism includes a guide shell, a plurality of guide inclined holes are opened on the upper end of the guide shell, a filter ring plate is fixedly connected to the middle of the guide shell through a filter plate, and a collecting box is installed between the filter plates; the bottom sealing mechanism includes a column shell, a drainage hole is opened at the bottom of the column shell, a sealing ring plate is slidably connected to the inner side of the bottom end of the column shell, a connecting column is fixedly connected to the bottom end of the sealing ring plate, a circular plate is fixedly connected to the bottom end of the connecting column, and a first spring is fixedly connected to the upper end of the circular plate.

[0008] As a further optimization of the present invention, the guide shell is welded and fixed to the connecting block, two connecting blocks are provided, one of which is slidably connected to the guide column, and the other connecting block is spirally connected to the threaded rod, and the guide column and the threaded rod are parallel.

[0009] As a further optimization of the present invention, the vertical section of the guide shell is U-shaped, the bottom end of the guide shell is welded and fixed to the outer side of the upper end of the column shell through the opened hole groove, and two filter plates are provided, and the edges of the filter plates are welded and fixed to the guide shell.

[0010] As a further optimization of the present invention, the middle of the upper end of the column shell is connected to the drain pipe through a cross, the drainage holes opened at the lower end of the column shell are arranged in a multi-layer ring shape, the connecting column is slidably connected to the bottom end of the column shell, two connecting columns are provided, the bottom end of the connecting column is exposed on the outside of the column shell, the first spring is installed on the outside of the connecting column exposed at the bottom end of the column shell, and the upper end of the first spring is fixedly connected to the bottom end of the column shell.

[0011] As a further optimization of the present invention, the upper plate is parallel to the bottom plate, the angle between the upper plate and the guide column is 90°, both ends of the upper plate are fixedly connected with fixed struts with adjustable length by bolts on both sides, and there are four fixed struts.

[0012] As a further optimization of the present invention, the sealing mechanism includes a column tube, a fixed ring plate is fixedly connected to the outer side of the upper end of the column tube, a second spring is fixedly connected to the bottom end of the fixed ring plate, the bottom end of the second spring is fixedly connected to the buoyancy ring plate, the buoyancy ring plate and the column tube are slidably connected, and a water inlet hole is opened at the bottom end of the column tube.

[0013] As further optimized content of the present invention, the drain pipe is fixedly connected to the column pipe, the second spring is arranged outside the column pipe, two water inlet holes are provided, the height of the water inlet holes is 4 cm, the height of the buoyancy ring plate is 6 cm, and the interior of the buoyancy ring plate is hollowed out.

[0014] As a further optimization of the present invention, the guide shell, column shell and column tube have the same axis, and the bottom end of the column tube is fixedly connected to the bottom end of the column shell.

[0015] As a further optimization of the present invention, the angle between the upper top plate and any fixed support rod is 90°, the drain pipe is arranged in a through hole opened in the middle of the upper top plate, and the upper and lower edges of the through hole are arc-shaped.

[0016] As a further optimized content of the present invention, the following steps are included: Step I: the device is installed as a whole in a tunnel that needs to be drained, and is positioned by a fixed support rod: the device is placed as a whole in the tunnel, and after the placement is completed, the length of the fixed support rod is adjusted so that the fixed support rod is in close contact with the inner wall of the tunnel, thereby positioning the device as a whole;

[0017] Step II: After the equipment is installed, let it stand for 10 minutes: After the equipment is fixed, you need to wait for about 10 minutes to allow the granular impurities in the sewage inside the tunnel to naturally sink to the bottom of the tunnel;

[0018] Step III: Power on the entire equipment to drain water: control the motor to operate, and adjust the position of the filter mechanism through the data of the water level gauge set inside the guide column. Adjust until the upper end of the diversion inclined hole is level with the horizontal plane. After the adjustment is completed, control the water pump to work. During this process, the upper end of the diversion inclined hole is always kept level with the water surface. At this time, the sewage enters the diversion shell and the column shell through the diversion inclined hole. At the same time, the buoyancy ring plate compresses the second spring through the buoyancy to expose the water inlet hole, and then discharges the water through the water inlet hole and the drain pipe. In this setting, a vortex is formed in the process of sewage entering the diversion shell, and at the same time, impurities at the bottom of the sewage pool can be prevented from entering. Impurities floating on the sewage can be filtered on the upper end of the filter plate, and with the sewage vortex, impurities can be allowed to enter the collection box, thereby preventing impurities from staying on the filter plate and the filter ring plate surface to cause blockage. The smoothness of water inlet can be further improved. As the sewage in the tunnel gradually decreases, the sewage level will also drop.

[0019] When the bottom end of the circular plate contacts the bottom plate, the circular plate pushes the sealing ring plate upward through the connecting column, thereby not blocking the drainage hole. At this time, the sewage can enter the column shell through the bottom, and the sewage in the tunnel can be cleaned more comprehensively.

[0020] Step IV: After drainage is completed, clean the outside of the device and store it after cleaning: After drainage is completed, take the entire device out of the tunnel and clean the outside. After the entire device is taken out from the outside, the second spring pushes the buoyancy ring plate to cover the water inlet, which can effectively prevent foreign matter inside the drain pipe from being discharged to the outside.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. In the present invention, by providing a filtering mechanism, a bottom sealing mechanism, a threaded rod, an adjusting motor and a sealing mechanism, during the drainage process, sewage can enter the column shell from the top, effectively preventing impurities at the bottom of the sewage from entering the column shell, and effectively preventing heavier fixed impurities from entering the pipeline to cause blockage. At the same time, floating impurities can be filtered by the filter ring plate and the filter plate, and after the sewage is discharged, the water inlet hole can be sealed by the buoyancy ring plate, thereby preventing foreign matter inside the drainage pipe from diffusing to the outside during the idle process of the drainage pipe, causing problems affecting the quality of the air environment;

[0023] 2. In the present invention, by setting the diversion inclined hole, a vortex can be formed when the sewage enters the column shell, and then the impurities attached to the filter ring plate and the filter plate surface can be entered into the collection box, which can effectively prevent the impurities from being attached to the filter ring plate and the filter plate surface, affecting the water inlet, and effectively improve the water inlet efficiency;

[0024] 3. In the present invention, the cooperation of the motor-driven guide column and the threaded rod can adjust the position of the filter mechanism in real time according to the data of the water level gauge inside the guide column, so that the water inlet of the filter is always kept flush with the water surface, avoiding the sediment at the bottom of the sewage from entering the filter, reducing the wear on the drainage equipment, and ensuring the efficient discharge of sewage, improving the automation level of the equipment, and reducing the need for manual intervention;

[0025] 4. In the present invention, a column shell with drainage holes and a sealing ring plate structure are designed at the bottom of the drainage equipment. When the drainage is almost completed, the sealing ring plate automatically opens the drainage hole to allow the bottom sewage to enter the column shell to ensure thorough drainage. This design enables the equipment to more comprehensively remove sewage in the tunnel, and is particularly suitable for drainage application scenarios that require thorough emptying. At the same time, the structural design with a guide shell and fixed struts ensures the stability of the equipment during use, and it can operate reliably even in deep tunnels. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 This is a schematic diagram of the internal structure of the filtering mechanism of the present invention;

[0028] Figure 3 For the present invention Figure 2 Schematic diagram of the structure at A in the middle;

[0029] Figure 4 For the present invention Figure 2 Schematic diagram of the structure at B in the middle;

[0030] Figure 5 This is a schematic diagram of the filter ring plate structure of the present invention;

[0031] Figure 6 It is a schematic diagram of the sealing mechanism structure of the present invention.

[0032] In the figure: 1. threaded rod; 2. guide column; 3. upper top plate; 4. drainage pipe; 5. fixed support rod; 6. water pump;

[0033] 7. Filter mechanism; 71. Guide shell; 72. Guide inclined hole; 73. Filter ring plate; 74. Collection box; 75. Filter plate;

[0034] 8. bottom sealing mechanism; 81. column shell; 82. drainage hole; 83. sealing ring plate; 84. connecting column; 85. first spring; 86. circular plate;

[0035] 9. Bottom plate; 10. Connecting block; 11. Adjusting motor;

[0036] 12. Sealing mechanism; 121. Column tube; 122. Fixed ring plate; 123. Second spring; 124. Water inlet hole; 125. Buoyancy ring plate; 13. Cross. DETAILED DESCRIPTION

[0037] See also Figure 1-6 , the present invention provides a technical solution:

[0038] A construction engineering drainage device and a method of using the same, comprising a threaded rod 1, a guide column 2 for guiding and measuring water level, and an upper top plate 3, wherein the upper and lower ends of the threaded rod 1 are rotatably connected to the upper top plate 3 and the bottom plate 9, respectively, and the other ends of the upper top plate 3 and the bottom plate 9 are fixedly connected via the guide column 2, an adjusting motor 11 is fixedly connected to one side of the upper end of the upper top plate 3, a drainage pipe 4 is arranged in the middle of the upper top plate 3, a water outlet of the drainage pipe 4 is fixedly connected to a water inlet of a water pump 6, a sealing mechanism 12 is installed at the water inlet of the drainage pipe 4, the sealing mechanism 12 is installed in the middle of the bottom end of the bottom sealing mechanism 8, and a filter is installed on the outer side of the upper end of the bottom sealing mechanism 8 Structure 7, both ends of the filtering mechanism 7 are fixedly connected with connecting blocks 10; the filtering mechanism 7 includes a guide shell 71, a plurality of guide inclined holes 72 are opened at the upper end of the guide shell 71, a filter ring plate 73 is fixedly connected to the middle of the guide shell 71 through a filter plate 75, and a collecting box 74 is installed between the filter plates 75; the bottom sealing mechanism 8 includes a column shell 81, a drainage hole 82 is opened at the bottom of the column shell 81, a sealing ring plate 83 is slidably connected to the inner side of the bottom end of the column shell 81, a connecting column 84 is fixedly connected to the bottom end of the sealing ring plate 83, a circular plate 86 is fixedly connected to the bottom end of the connecting column 84, and a first spring 85 is fixedly connected to the upper end of the circular plate 86.

[0039] As a further technical solution of this solution, the guide shell 71 is welded and fixed to the connecting block 10. Two connecting blocks 10 are provided, one of which is slidably connected to the guide column 2, and the other connecting block 10 is spirally connected to the threaded rod 1. The guide column 2 is parallel to the threaded rod 1. Through the above arrangement, the filter mechanism 7 can be driven by the threaded rod 1 to move stably;

[0040] As a further technical solution of this solution, the vertical cross-section of the guide shell 71 is U-shaped, the bottom end of the guide shell 71 is welded and fixed to the outer side of the upper end of the column shell 81 through the hole groove, and two filter plates 75 are provided, and the edge of the filter plate 75 is welded and fixed to the guide shell 71. Through the above arrangement, the filtering effect can be improved;

[0041] As a technical solution for further implementation of this solution, the middle of the upper end of the column shell 81 is connected to the drain pipe 4 through a cross 13, the drainage hole 82 opened at the lower end of the column shell 81 is a multi-layer ring arrangement, the connecting column 84 is slidably connected to the bottom end of the column shell 81, and there are two connecting columns 84, the bottom end of the connecting column 84 is exposed on the outside of the column shell 81, the first spring 85 is installed on the outside of the connecting column 84 exposed at the bottom end of the column shell 81, and the upper end of the first spring 85 is fixedly connected to the bottom end of the column shell 81. Through the above arrangement, the bottom of the column shell 81 can be opened in the later stage of sewage treatment to better drain the sewage in the sewage pool;

[0042] As a further technical solution of this scheme, the upper plate 3 is parallel to the bottom plate 9, the angle between the upper plate 3 and the guide column 2 is 90°, and both ends of the upper plate 3 are fixedly connected by bolts with fixed struts 5 of adjustable length, and four fixed struts 5 are provided. Through the above arrangement, the stability of the connection between the upper plate 3 and the bottom plate 9 can be ensured;

[0043] As a technical solution for further implementation of this solution, the sealing mechanism 12 includes a column tube 121, a fixed ring plate 122 is fixedly connected to the outer side of the upper end of the column tube 121, a second spring 123 is fixedly connected to the bottom end of the fixed ring plate 122, the bottom end of the second spring 123 is fixedly connected to the buoyancy ring plate 125, the buoyancy ring plate 125 and the column tube 121 are slidably connected, a water inlet hole 124 is opened at the bottom end of the column tube 121, the drain pipe 4 and the column tube 121 are fixedly connected, the second spring 123 is arranged outside the column tube 121, two water inlet holes 124 are arranged, the height of the water inlet hole 124 is 4 cm, the height of the buoyancy ring plate 125 is 6 cm, and the interior of the buoyancy ring plate 125 is hollowed out. Through the above arrangement, the drain pipe 4 can be sealed during idleness, which can effectively prevent the odor generated by the debris on the inner wall of the drain pipe 4 from drifting into the air;

[0044] As a further technical solution of this solution, the guide shell 71, the column shell 81 and the column tube 121 are on the same axis, and the bottom end of the column tube 121 is fixedly connected to the bottom end of the column shell 81. Through the above arrangement, the stability of the overall operation of the equipment can be improved;

[0045] As a technical solution for further implementing this scheme, the angle between the upper top plate 3 and any fixed support rod 5 is 90°, and the drain pipe 4 is arranged in a through hole opened in the middle of the upper top plate 3. The upper and lower edges of the through hole are arc-shaped. Through the above arrangement, the drain pipe 4 can be stably supported.

[0046] The method comprises the following steps: Step I: the device is installed as a whole in a tunnel that needs to be drained, and is positioned by a fixed support rod 5: the device is placed as a whole in the tunnel, and after placement, the length of the fixed support rod 5 is adjusted so that the fixed support rod 5 is in close contact with the inner wall of the tunnel, thereby positioning the device as a whole;

[0047] Step II: After the equipment is installed, let it stand for 10 minutes: After the equipment is fixed, you need to wait for about 10 minutes to allow the granular impurities in the sewage inside the tunnel to naturally sink to the bottom of the tunnel;

[0048] Step III: Power on the whole equipment to drain water: control the motor 11 to operate, and adjust the position of the filter mechanism 7 through the data of the water level gauge set inside the guide column 2, until the upper end of the diversion inclined hole 72 is flush with the horizontal plane. After the adjustment is completed, control the water pump 6 to work. During this process, the upper end of the diversion inclined hole 72 is always kept flush with the water surface. At this time, the sewage enters the diversion shell 71 and the column shell 81 through the diversion inclined hole 72. At the same time, the buoyancy ring plate 125 compresses the second spring 123 through the buoyancy, so that the water inlet hole 124 is exposed. , and then the water is discharged through the water inlet hole 124 and the drain pipe 4. With this arrangement, a vortex is formed when the sewage enters the guide shell 71, and at the same time, impurities at the bottom of the sewage pool can be prevented from entering. Impurities floating on the sewage can be filtered on the upper end of the filter plate 75, and with the sewage vortex, the impurities can enter the collection box 74, thereby preventing the impurities from staying on the filter plate 75 and the filter ring plate 73 surface to cause blockage. The smoothness of the water inlet can be further improved. As the sewage in the tunnel gradually decreases, the sewage level will also drop.

[0049] When the bottom end of the circular plate 86 contacts the bottom plate, the circular plate 86 pushes the sealing ring plate 83 upward through the connecting column 84, thereby not blocking the drainage hole 82. At this time, the sewage can enter the column shell 81 through the bottom, and the sewage in the tunnel can be cleaned more comprehensively.

[0050] Step IV: After drainage is completed, clean the outside of the device and store it after cleaning: After drainage is completed, take the entire device out of the tunnel and clean the outside. After the entire device is taken out from the outside, the second spring 123 pushes the buoyancy ring plate 125 to cover the water inlet hole 124, which can effectively prevent foreign matter inside the drain pipe 4 from being discharged to the outside.

[0051] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. The above is only a preferred implementation of the present invention. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the protection scope of the present invention.

Claims

1. A drainage device for construction engineering, comprising a threaded rod (1), a guide column (2) for guiding and measuring water level, and an upper top plate (3), characterized in that: The upper and lower ends of the threaded rod (1) are rotatably connected to an upper top plate (3) and a bottom plate (9) respectively; the upper top plate (3) and the other ends of the bottom plate (9) are fixedly connected via a guide column (2); an adjusting motor (11) is fixedly connected to one side of the upper end of the upper top plate (3); a drain pipe (4) is provided in the middle of the upper top plate (3); a water outlet of the drain pipe (4) is fixedly connected to a water inlet of a water pump (6); a sealing mechanism (12) is installed at the water inlet of the drain pipe (4); the sealing mechanism (12) is installed in the middle of the bottom end of the bottom sealing mechanism (8); a filtering mechanism (7) is installed on the outer side of the upper end of the bottom sealing mechanism (8); and both ends of the filtering mechanism (7) are fixedly connected to connecting blocks (10); The filtering mechanism (7) comprises a flow guide shell (71), a plurality of flow guide inclined holes (72) are formed at the upper end of the flow guide shell (71), a filter ring plate (73) is fixedly connected to the middle of the flow guide shell (71) via a filter plate (75), and a collection box (74) is installed between the filter plates (75); The bottom sealing mechanism (8) comprises a column shell (81), a drainage hole (82) is provided at the bottom of the column shell (81), a sealing ring plate (83) is slidably connected to the inner side of the bottom end of the column shell (81), a connecting column (84) is fixedly connected to the bottom end of the sealing ring plate (83), a circular plate (86) is fixedly connected to the bottom end of the connecting column (84), and a first spring (85) is fixedly connected to the upper end of the circular plate (86).

2. A construction engineering drainage device according to claim 1, characterized in that: The guide shell (71) is welded and fixed to the connecting block (10), and two connecting blocks (10) are provided, wherein one of the connecting blocks (10) is slidably connected to the guide column (2), and the other of the connecting blocks (10) is spirally connected to the threaded rod (1), and the guide column (2) and the threaded rod (1) are parallel.

3. A construction engineering drainage device according to claim 2, characterized in that: The vertical cross-section of the guide shell (71) is U-shaped. The bottom end of the guide shell (71) is welded and fixed to the outer side of the upper end of the column shell (81) through the hole groove. Two filter plates (75) are provided. The edges of the filter plates (75) are welded and fixed to the guide shell (71).

4. A construction engineering drainage device according to claim 3, characterized in that: The middle of the upper end of the column shell (81) is connected to the drain pipe (4) via a cross (13); the drainage hole (82) provided at the lower end of the column shell (81) is arranged in a multi-layered ring shape; the connecting column (84) is slidably connected to the bottom end of the column shell (81); two connecting columns (84) are provided; the bottom end of the connecting column (84) is exposed outside the column shell (81); the first spring (85) is installed on the outside of the connecting column (84) exposed at the bottom end of the column shell (81); the upper end of the first spring (85) is fixedly connected to the bottom end of the column shell (81).

5. A construction engineering drainage device according to claim 4, characterized in that: The upper plate (3) and the bottom plate (9) are parallel to each other, and the angle between the upper plate (3) and the guide column (2) is 90°. Both ends of the upper plate (3) are fixedly connected to length-adjustable fixed struts (5) by bolts, and four fixed struts (5) are provided.

6. A construction engineering drainage device according to claim 5, characterized in that: The sealing mechanism (12) comprises a column tube (121), the outer side of the upper end of the column tube (121) is fixedly connected to a fixed ring plate (122), the bottom end of the fixed ring plate (122) is fixedly connected to a second spring (123), the bottom end of the second spring (123) is fixedly connected to a buoyancy ring plate (125), the buoyancy ring plate (125) and the column tube (121) are slidably connected, and the bottom end of the column tube (121) is provided with a water inlet hole (124).

7. A construction engineering drainage device according to claim 6, characterized in that: The drainage pipe (4) is fixedly connected to the column pipe (121); the second spring (123) is arranged outside the column pipe (121); two water inlet holes (124) are provided; the height of the water inlet holes (124) is 4 cm; the height of the buoyancy ring plate (125) is 6 cm; and the interior of the buoyancy ring plate (125) is hollowed out.

8. A construction engineering drainage device according to claim 7, characterized in that: The guide shell (71), the column shell (81) and the column tube (121) share the same axis, and the bottom end of the column tube (121) is fixedly connected to the bottom end of the column shell (81).

9. A construction engineering drainage device according to claim 8, characterized in that: The angle formed between the upper top plate (3) and any fixed support rod (5) is 90°, and the drainage pipe (4) is arranged in a through hole opened in the middle of the upper top plate (3), and the upper and lower edges of the through hole are arc-shaped.

10. A method for using the drainage equipment for construction engineering according to claim 9, characterized in that: The following steps are involved: Step I: The device is installed as a whole in a tunnel that needs to be drained, and is positioned by means of a fixed support rod (5): the device is placed as a whole in the tunnel, and after placement is completed, the length of the fixed support rod (5) is adjusted so that the fixed support rod (5) is in close contact with the inner wall of the tunnel, thereby positioning the device as a whole; Step II: After the equipment is installed, let it stand for 10 minutes: After the equipment is fixed, you need to wait for 10 minutes to allow the granular impurities in the sewage inside the tunnel to naturally sink to the bottom of the tunnel; Step III: Power on the entire device to drain water: control the regulating motor (11) to operate, and the regulating motor (11) adjusts the position of the filter mechanism (7) through the data of the water level gauge set inside the guide column (2) until the upper end of the diversion inclined hole (72) is flush with the horizontal plane. After the adjustment is completed, control the water pump (6) to work. During this process, the upper end of the diversion inclined hole (72) is always kept flush with the water surface. At this time, the sewage enters the diversion shell (71) and the column shell (81) through the diversion inclined hole (72). At the same time, the buoyancy ring plate (125) compresses the second spring (123) through the buoyancy, so that The water inlet hole (124) is exposed, and water is discharged through the water inlet hole (124) and the drain pipe (4). With this arrangement, when sewage enters the guide shell (71), a vortex is formed, and impurities at the bottom of the sewage pool are prevented from entering. Impurities floating on the sewage are filtered on the upper end of the filter plate (75), and along with the sewage vortex, the impurities enter the collection box (74), thereby preventing the impurities from staying on the surface of the filter plate (75) and the filter ring plate (73) to cause blockage. The smoothness of water inlet is further improved. As the sewage in the tunnel gradually decreases, the sewage level will also drop. When the bottom end of the circular plate (86) contacts the bottom plate, the circular plate (86) pushes the sealing ring plate (83) to move upwards through the connecting column (84), thereby not blocking the drainage hole (82). At this time, the sewage enters the column shell (81) through the bottom, so that the sewage in the tunnel is cleaned more comprehensively. Step IV: After the drainage is completed, the outside of the device is cleaned and stored: After the drainage is completed, the entire device is taken out of the tunnel and the outside is cleaned. After the entire device is taken out from the outside, the second spring (123) pushes the buoyancy ring plate (125) to cover the water inlet hole (124), effectively preventing foreign matter inside the drainage pipe (4) from being discharged to the outside.

Images