A foundation pit well dewatering device

Abstract

This utility model discloses a dewatering device for foundation pit manholes, including a manhole. A drainage pump is fixedly installed on one side of the manhole. A pumping pipe is fixedly installed on the lower surface of the drainage pump, and a drainage pipe is fixedly installed on the upper surface of the drainage pump. A mounting frame is fixedly connected to the upper end of the manhole. A control box is fixedly installed on the upper surface of the mounting frame. An arc-shaped conductive plate is fixedly connected to one side of the control box. A control pipe is fixedly connected to one side of the arc-shaped conductive plate. A connecting wire is fixed to one end of the control pipe. One end of the connecting wire is connected to one side of the drainage pump via a circuit. A support shaft is hinged inside the control box. A swing plate is hinged to the surface of the support shaft. An arc-shaped conductive block is fixed to one end of the swing plate to maintain long-term contact and increase pumping time. This device is convenient for combination control, easy to install and use, and highly adaptable.

Description

Technical Field

[0001] This utility model relates to the field of well dewatering, and more specifically, to a well dewatering device for foundation pits. Background Technology

[0002] To provide a dry and safe construction environment for deep foundation pit projects, it is essential to lower the groundwater level of the excavated soil and the groundwater level of aquifers that may cause a sudden surge of confined water at the bottom of the pit through dewatering. Drilling and installation within the foundation pit are extremely convenient and relatively inexpensive. Currently, well dewatering is commonly used in deep foundation pit excavation to lower the water level or water content in aquifers. Urban underground utility tunnel projects have been widely applied in municipal road construction. In cities with abundant groundwater, foundation pit dewatering has become a key factor restricting the construction of deep foundation pits for utility tunnels. Well dewatering is primarily employed for utility tunnel foundation pits, and it is crucial for the stability of the foundation pit, the settlement control of surrounding structures, and the safety of the underground structure construction.

[0003] The utility model patent with authorization announcement number CN 214005708 U discloses a novel deep foundation pit well dewatering device. Its technical solution includes a first mounting box and a deep foundation pit well pipe. The first mounting box is located inside the deep foundation pit well pipe, and a through hole is opened on one side of the first mounting box. A first transmission roller and a second transmission roller are rotatably connected inside the first mounting box. A filter screen is driven by the surfaces of the first and second transmission rollers. A motor is fixedly installed on the outside of the first mounting box, and the output end of the motor is fixedly connected to the first transmission roller. A first water pipe is provided between the first and second transmission rollers. This utility model uses a motor to drive the first transmission roller to rotate, which in turn drives the filter screen with the second transmission roller. A brush cleans impurities from the filter screen surface, and a water pump, in conjunction with the first and second water pipes, pumps and discharges accumulated water from the foundation pit, preventing sand and impurities in the accumulated water from damaging the water pump and reducing its service life.

[0004] In the above-disclosed structure, the water pump is controlled by a rotating plate inside the third mounting box. After the water level drops, the plate will directly separate, making it impossible to stably supply electricity. Furthermore, it lacks a sliding structure connecting the arc-shaped conductive plate to the arc-shaped conductive block, making it impossible to slide and adjust to maintain stable long-term contact. This results in an inability to effectively provide pumping time, affecting the stability of precipitation and exhibiting poor adaptability, which needs to be improved. Utility Model Content

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a dewatering device for foundation pits and manholes. By installing a drainage pump in the manhole and connecting it to a control box and control pipe, it can be assembled and electrically controlled, which is beneficial for pumping and dewatering. Furthermore, by installing an arc-shaped conductive plate inside, combined with a swing plate connected to an arc-shaped conductive block and a pull rope, and installing a floating plate at the bottom, the pumping time can be increased by pulling the plate according to the water level and maintaining contact for a longer period of time. It is convenient to combine and control, easy to install and use, and highly adaptable.

[0006] To solve the above problems, the present invention adopts the following technical solution.

[0007] A dewatering device for a foundation pit manhole includes a manhole. A drainage pump is fixedly installed on one side of the manhole. A pumping pipe is fixedly installed on the lower surface of the drainage pump, and a drainage pipe is fixedly installed on the upper surface of the drainage pump. A mounting frame is fixedly connected to the upper end of the manhole. A control box is fixedly installed on the upper surface of the mounting frame. An arc-shaped conductive plate is fixedly connected to one side of the control box. A control pipe is fixedly connected to one side of the arc-shaped conductive plate. A connecting wire is fixed to one end of the control pipe. One end of the connecting wire is connected to one side of the drainage pump via an electrical circuit. A support shaft is hinged inside the control box. A swing plate is hinged to the surface of the support shaft. An arc-shaped conductive block is fixed to one end of the swing plate and slidably connected to one side of the arc-shaped conductive plate. A pull rope is fixedly connected to the other end of the swing plate. A floating plate is fixedly connected to one end of the pull rope and slidably connected to the inside of the manhole.

[0008] Furthermore, a limiting block is fixedly connected to one end of the arc-shaped conductive plate, and an arc-shaped insulating strip is fixedly connected to the other end of the arc-shaped conductive plate.

[0009] Furthermore, a limiting plate is fixedly connected inside the well, and the limiting plate is located at the upper end of the arc-shaped insulating strip.

[0010] Furthermore, a counterweight is fixedly connected to one end of the swing plate. The counterweight is located on one side of the arc-shaped conductive block. The limiting block and the arc-shaped insulating strip are connected through the arc-shaped conductive plate. By combining the swing plate with the counterweight, the position can be adjusted by swinging to switch the control mode, which is convenient for adjustment and use and has high adaptability.

[0011] Furthermore, a flexible hose is fixedly connected to one end of the water pumping pipe, and a filter head is fixedly connected to one end of the flexible hose.

[0012] Furthermore, the filter head is fixedly connected to one side of the floating plate and located on the lower surface of the floating plate.

[0013] Furthermore, a guide rod is fixedly connected to the side of the floating plate. The guide rod is slidably connected to the inner side wall surface of the well. A hose and filter head are installed through the water pumping pipe, which can be positioned to one side of the floating plate, making it easy to float to the water surface for pumping, avoiding bottom sediments, facilitating installation and use, and providing high adaptability.

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] (1) This solution uses a well to install a drainage pump and connects it to a control box to connect the control pipe. It can be installed in combination for power control, which is beneficial for pumping and dewatering. Furthermore, by installing an arc-shaped conductive plate inside, connecting the arc-shaped conductive block and the pull rope with the swing plate, and installing a floating plate at the bottom, the pumping time can be increased by pulling the plate according to the water level. This makes it convenient for combination control, easy to install and use, and highly adaptable.

[0016] (2) By connecting the limit block and the arc-shaped insulating strip through the arc-shaped conductive plate and installing the counterweight block in combination with the swing plate, the position can be adjusted by swinging to switch the control mode, which is convenient to adjust and use and has high adaptability.

[0017] (3) By installing a hose and filter head through the water pumping pipe, it can be positioned on one side of the floating plate, which is conducive to floating to the water surface for water pumping, avoiding bottom sediments, making it easy to install and use, and highly adaptable. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the internal cross-section of the present invention;

[0020] Figure 3 This is a schematic diagram of the internal structure of the control box of this utility model;

[0021] Figure 4 For the present utility model Figure 3 Enlarged view of point A where the swing plate is connected;

[0022] Figure 5 This is a schematic diagram of the structure of the floating plate of this utility model.

[0023] Explanation of the labels in the diagram:

[0024] 1. Pipe well, 11. Drainage pump, 12. Pumping pipe, 13. Drainage pipe, 14. Mounting bracket, 15. Control box, 16. Arc-shaped conductive plate, 17. Control pipe, 18. Connecting wire, 2. Support shaft, 21. Swing plate, 22. Arc-shaped conductive block, 23. Pull rope, 24. Floating plate, 25. Limiting block, 26. Arc-shaped insulating strip, 27. Limiting plate, 28. Counterweight block, 3. Hoses, 31. Filter head, 32. Guide rod. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1 , Figure 3 and Figure 4 A dewatering device for a foundation pit manhole includes a manhole 1. A drainage pump 11 is fixedly installed on one side of the manhole 1. A pumping pipe 12 is fixedly installed on the lower surface of the drainage pump 11, and a drainage pipe 13 is fixedly installed on the upper surface of the drainage pump 11. This device can stably pump and drain water, thereby lowering the water level inside the manhole 1, facilitating protective use, and ensuring safety and stability. A mounting frame 14 is fixedly connected to the upper end of the manhole 1. A control box 15 is fixedly installed on the upper surface of the mounting frame 14. An arc-shaped conductive plate 16 is fixedly connected to one side of the inner surface of the control box 15. A control pipe 17 is fixedly connected to one side of the arc-shaped conductive plate 16. A connecting wire 18 is fixed to one end of the control pipe 17. One end of the connecting wire 18 is connected to one side of the drainage pump 11 via an electrical circuit, allowing for... The electrically controlled drainage pump 11 is convenient for pumping water to lower the water level. It can be stopped when the water level is low to avoid damage, ensuring safety and stability. The control box 15 is hinged to the support shaft 2, and the surface of the support shaft 2 is hinged to the swing plate 21. One end of the swing plate 21 is fixed with an arc-shaped conductive block 22, which is slidably connected to one side surface of the arc-shaped conductive plate 16. The other end of the swing plate 21 is fixedly connected with a pull rope 23, and one end of the pull rope 23 is fixedly connected with a float plate 24. The float plate 24 is slidably connected to the inside of the manhole 1. By connecting the float plate 24 to the pull rope 23, it can float to the water surface inside the manhole 1. The swing plate 21 can be pulled to swing and adjust, thereby automatically controlling the water level. It is convenient to install and use, precise and efficient.

[0027] Please see Figure 2 and Figure 4One end of the arc-shaped conductive plate 16 is fixedly connected to a limiting block 25, and the other end of the arc-shaped conductive plate 16 is fixedly connected to an arc-shaped insulating strip 26. A limiting plate 27 is fixedly connected inside the manhole 1, located above the arc-shaped insulating strip 26. One end of the swing plate 21 is fixedly connected to a counterweight 28, located on one side of the arc-shaped conductive block 22. The limiting block and the arc-shaped insulating strip are connected via the arc-shaped conductive plate. Combined with the counterweight installed on the swing plate, the position can be adjusted by swinging to switch control modes, facilitating adjustment and use, and offering high adaptability. The arc-shaped conductive block 22 is connected to the surface of the arc-shaped conductive plate 16, allowing the circuit to be connected to start the drainage pump 11 for drainage, ensuring convenience and stability. When the internal water level is high, the float plate 24 floats to a high position, the pull rope 23 is in a free state, the counterweight 28 swings the swing plate 21, and the arc-shaped conductive block 22 slides to the position of the limit block 25, which can continuously contact the arc-shaped conductive plate 16, thereby energizing and draining water. When the water level drops, the float plate 24 lowers its height, and the pull rope 23 pulls the swing plate 21 to flip. During the pulling process, the arc-shaped conductive block 22 slides along the surface of the arc-shaped conductive plate 16, which can maintain energized contact. When the water level drops to a certain height, the arc-shaped conductive block 22 slides to the position of the arc-shaped insulating strip 26, thereby separating and cutting off the power, and the pumping can be stopped. It is precise, efficient and convenient for combined use.

[0028] Please see Figure 1 , Figure 2 and Figure 5 A hose 3 is fixedly connected to one end of the pumping pipe 12, and a filter head 31 is fixedly connected to one end of the hose 3. The filter head 31 is fixedly connected to one side of the floating plate 24 and located on the lower surface of the floating plate 24. A guide rod 32 is fixedly connected to the side of the floating plate 24 and slidably connected to the inner side wall surface of the manhole 1. By installing the hose and filter head through the pumping pipe, it can be positioned to one side of the floating plate, which is conducive to floating to the water surface for pumping, avoiding bottom sediments, facilitating installation and use, and having high adaptability.

[0029] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A dewatering device for a foundation pit manhole, comprising a manhole (1), wherein a drainage pump (11) is fixedly installed on one side inside the manhole (1), a pumping pipe (12) is fixedly installed on the lower surface of the drainage pump (11), and a drainage pipe (13) is fixedly installed on the upper surface of the drainage pump (11), characterized in that: A mounting bracket (14) is fixedly connected to the upper end of the manhole (1). A control box (15) is fixedly installed on the upper surface of the mounting bracket (14). An arc-shaped conductive plate (16) is fixedly connected to one side of the inner surface of the control box (15). A control pipe (17) is fixedly connected to one side of the arc-shaped conductive plate (16). A connecting wire (18) is fixed to one end of the control pipe (17). One end of the connecting wire (18) is connected to one side of the drainage pump (11) through a circuit. (15) is therefore hinged to a support shaft (2), and a swing plate (21) is hinged to the surface of the support shaft (2). One end of the swing plate (21) is fixed with an arc-shaped conductive block (22), which is slidably connected to one side surface of the arc-shaped conductive plate (16). The other end of the swing plate (21) is fixedly connected with a pull rope (23), and one end of the pull rope (23) is fixedly connected with a floating plate (24). The floating plate (24) is slidably connected to the inside of the well (1).

2. The foundation pit well dewatering device according to claim 1, characterized in that: One end of the arc-shaped conductive plate (16) is fixedly connected to a limiting block (25), and the other end of the arc-shaped conductive plate (16) is fixedly connected to an arc-shaped insulating strip (26).

3. The foundation pit well dewatering device according to claim 1, characterized in that: A limiting plate (27) is fixedly connected inside the well (1), and the limiting plate (27) is located at the upper end of the arc-shaped insulating strip (26).

4. The foundation pit well dewatering device according to claim 1, characterized in that: One end of the swing plate (21) is fixedly connected to a counterweight (28), which is located on one side of the arc-shaped conductive block (22).

5. The foundation pit well dewatering device according to claim 1, characterized in that: One end of the water pump (12) is fixedly connected to a hose (3), and one end of the hose (3) is fixedly connected to a filter head (31).

6. The foundation pit well dewatering device according to claim 5, characterized in that: The filter head (31) is fixedly connected to one side of the float plate (24) and located on the lower surface of the float plate (24).

7. The foundation pit well dewatering device according to claim 1, characterized in that: The side of the floating plate (24) is fixedly connected to a guide rod (32), which is slidably connected to the inner side wall surface of the well (1).

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