Water suction head structure for drainage of foundation pit

Abstract

The utility model relates to a water suction head structure for drainage of a foundation pit. The utility model is applicable to the technical field of drainage equipment. According to the technical scheme, the water suction head structure used for drainage of the foundation pit is provided with a frame, the sliding rod is arranged in the frame in the vertical direction; and the water pumping frame is provided with a water pumping pipe connected with a water pump, a lantern ring capable of being in sliding fit with the sliding rod is installed on the water pumping frame, and a floating block is installed on the water pumping frame. Thus, after the frame is placed in the foundation pit, the water pumping frame can be prevented from making direct contact with the bottom of the foundation pit under the action of the frame, and sludge at the bottom of the foundation pit can be effectively prevented from entering the water pumping frame; under the action of the floating block on the water pumping frame, when accumulated water in the foundation pit is too much, the water pumping frame can move to the top position of the frame, sludge can be effectively prevented from entering the water pumping frame, and when the accumulated water in the foundation pit descends to the position of the frame, the water pumping frame can keep making contact with the water surface under the action of the floating block, and the accumulated water in the foundation pit is discharged.

Description

Technical Field

[0001] This utility model relates to a suction head structure for foundation pit drainage. It is applicable to the field of drainage equipment technology. Background Technology

[0002] Excavation of the foundation pit is a crucial step in the construction of water conservancy and hydropower projects. By excavating, a space of earth with a certain depth and shape is created, providing a stable foundation for structures such as dams and hydropower stations. During the foundation excavation process, drainage is necessary. During excavation, a significant amount of mud, sand, and impurities remain in the foundation pit. When these mud, sand, and impurities mix with the water in the pit, they can easily clog water pipes, affecting drainage efficiency. Utility Model Content

[0003] The technical problem to be solved by this utility model is: to solve the above-mentioned technical problem, this utility model provides a water suction head structure for foundation pit drainage.

[0004] The technical solution adopted in this utility model is: a water suction head structure for foundation pit drainage, having:

[0005] frame;

[0006] The sliding rod is arranged vertically within the frame;

[0007] The pumping frame is equipped with a pumping pipe connected to a water pump, a collar that slides with a sliding rod, and a floating block. Thus, after the frame is placed in the foundation pit, the frame prevents the pumping frame from directly contacting the bottom of the pit, effectively preventing silt from entering the pumping frame. With the floating block, when there is a large amount of water in the pit, the pumping frame can move to the top of the frame, effectively preventing silt from entering. When the water level drops to the frame level, the floating block keeps the pumping frame in contact with the water surface and drains the water from the pit.

[0008] A filter cylinder with evenly spaced filter holes is installed inside the pumping frame at the inlet of the pumping pipe. Thus, when the pumping frame is placed in the foundation pit and a water pump draws water from the pit, the filter cylinder filters the water, preventing mud, sand, or impurities from clogging the pump.

[0009] A rotating rod arranged axially along the filter cylinder is installed inside the filter cylinder. A fan blade is installed at the end of the rotating rod, and a cleaning brush is installed on the inner wall of the pumping frame, allowing it to contact the surface of the filter cylinder. Thus, during the pumping of water from the pit, the water flows from the pumping frame to the pumping pipe. In this process, the water flow drives the filter cylinder to rotate. The cleaning brush cleans the surface of the filter cylinder during this rotation, effectively preventing clogging of the filter holes and enhancing the filtration efficiency.

[0010] The frame has a base plate, on which a support frame is mounted, and the sliding rod is arranged between the support frame and the base plate. Thus, after the frame is placed in the pit, the base plate of the frame rests on the bottom surface of the pit.

[0011] The frame has a trapezoidal longitudinal section with a smaller upper end. This gives the frame good stability.

[0012] A pin is installed at the lower end of the base plate. In this way, when the frame is placed in the pit, the pin under the base plate will be inserted into the pit, which can effectively prevent the frame from moving in the pit during the pumping process and further stirring up the water.

[0013] At least two collars are installed on the side wall of the pumping frame, and the top of the support frame has a through hole at the position corresponding to the pumping pipe, allowing the pumping pipe to pass through.

[0014] Hanging rings are installed on the frame. Thus, by tying ropes to the hanging rings, the frame can be easily removed from the pit by pulling the ropes after dewatering is complete.

[0015] The beneficial effects of this utility model are as follows: 1. This utility model, through the sliding rod, water-drawing frame, and floating block, can easily follow the water level to draw water and sink the device to the bottom. If the water level is higher than the device, the water-drawing frame and filter cylinder will be located at the top of the sliding rod under the action of the floating block. If the water level is lower than the device, the floating block will carry the water-drawing frame and filter cylinder to float on the water level line for water drawing. As the water level line drops during the water drawing process, the water-drawing frame will follow and drop until it touches the bottom. During the water drawing process, the filter cylinder will be just below the water level line, which can ensure normal water drawing and keep it away from the bottom of the water, so as not to touch the bottom of the water prematurely. Therefore, the influence of silt on water drawing is minimized.

[0016] 2. By setting a base plate on the water pumping frame, this utility model not only allows the device to sink to the bottom easily, but also shields the bottom of the water at the current position. As the water pumping frame descends with the water level, it will contact the base plate, avoiding direct contact between the water pumping frame and the mud and sand at the bottom of the water, further reducing the impact of mud and sand on the device and water pumping.

[0017] 3. This utility model provides a filter cylinder that can be rotated by water flow inside the pumping frame, and a cleaning brush that contacts the filter cylinder is installed on the inner wall of the pumping frame. During the pumping process, the cleaning brush can clean the side wall of the filter cylinder, preventing mud and sand from clogging the filter holes and thus affecting the drainage efficiency. 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 bottom structure of the base plate of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the pumping frame of this utility model;

[0021] Figure 4 This is a cross-sectional view of the pumping frame of this utility model.

[0022] In the diagram: 1. Base plate; 101. Insert pin; 2. Support frame; 3. Through hole; 4. Slide rod; 5. Collar; 6. Connecting block; 7. Pumping frame; 8. Floating block; 9. Filter cylinder; 10. Rotating rod; 11. Support rod; 12. Fan blade; 13. Cleaning brush; 14. Pumping pipe; 15. Hanging ring. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and through embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.

[0024] This embodiment is a water suction head structure for foundation pit drainage.

[0025] In this embodiment, a frame is provided, which has a base plate 1 on which a support frame 2 is installed. The longitudinal section of the frame is trapezoidal with a smaller upper end. This provides good structural stability, allowing the frame to be placed stably at the bottom of the foundation pit.

[0026] In this embodiment, a pin 101 is installed at the lower end of the base plate 1, so that when the base plate 1 is placed at the bottom of the pit, the pin 101 can be inserted into the pit, thereby improving the stability of the frame.

[0027] In this embodiment, two sliding rods 4 are installed between the support frame 2 and the base plate 1. The sliding rods 4 are arranged in a direction perpendicular to the plane of the base plate 1. A water-drawing frame 7 is arranged between the two sliding rods 4. A collar 5 is connected to the two side walls of the water-drawing frame 7 by a connecting block 6. The collar 5 is fitted onto the sliding rods 4 on both sides of the water-drawing frame 7, and the collar 5 slides with the sliding rod 4.

[0028] In this embodiment, a water-drawing pipe 14 is connected to the top of the water-drawing frame 7, and a through hole 3 is made on the support frame 2 at the position corresponding to the water-drawing pipe 14. Thus, when the water-drawing frame 7 is arranged between the two sliding rods 4, the water-drawing pipe 14 on the water-drawing frame 7 can extend upward through the through hole 3 on the support frame 2.

[0029] In this embodiment, the end of the pumping pipe 14 is connected to a water pump. Thus, after the pumping frame 7 is placed in the water-filled pit, the water in the pit can be drained by running the water pump.

[0030] In this embodiment, a floating block 8 is installed on the pumping frame 7. Thus, when this suction head structure is placed at the bottom of the pit, when the water at the bottom of the pit overflows the suction head structure, the floating block 8 causes the pumping frame 7 to move to the top position of the support frame 2 through the sliding cooperation of the collar 5 and the sliding rod 4. This effectively prevents the pumping frame 7 from being directly placed at the bottom of the pit, thus avoiding the entry of mud, sand, and other impurities from the bottom of the pit into the pumping frame 7. When the water in the pit drops to the position of the support frame 2, the floating block 8 ensures that the pumping frame 7 remains floating on the water surface, maintaining a good pumping effect.

[0031] In this embodiment, a filter cylinder 9 is arranged inside the pumping frame 7. The filter cylinder 9 has uniformly formed filter holes and is located at the end of the pumping pipe 14. Thus, when the pumping frame 7 is placed in the pit and the water pump is running, the accumulated water is pumped into the pumping frame 7 and filtered through the filter cylinder 9 to remove impurities, allowing the accumulated water to be discharged through the pumping pipe 14.

[0032] In this embodiment, a rotating rod 10 arranged axially along the filter cylinder 9 is installed inside the filter cylinder 9. The rotating rod 10 is mounted on the inner wall of the filter cylinder 9 via a support rod 11. A fan blade 12 is installed at the end of the rotating rod 10. A cleaning brush 13 is installed on the inner wall of the water suction frame 7, and the cleaning brush 13 can contact the surface of the filter cylinder 9. Thus, during drainage, the water flow from the filter cylinder 9 to the water suction pipe 14 can drive the fan blade 12 to rotate, thereby driving the filter cylinder 9 to rotate. The cleaning brush 13 on the inner wall of the water suction frame 7 contacts the filter cylinder 9, thereby limiting the movement of the filter cylinder 9. During the rotation of the filter cylinder 9, the cleaning brush 13 can clean the side wall of the filter cylinder 9, preventing the filter cylinder 9 from becoming clogged on the side wall and affecting the drainage efficiency.

[0033] Hanging rings 15 are installed on the frame. Thus, by tying ropes to the hanging rings 15, the frame can be easily removed from the pit by pulling the ropes after the pit has been dewatered.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A water absorption head structure for a foundation pit drainage, characterized by: The utility model relates to a kind of water pumping device, including frame, sliding rod (4) and water pumping frame (7) being arranged in frame along vertical direction. Water pumping frame (7) is equipped with water pumping pipe (14) connected with water pump on it, and is equipped with sleeve ring (5) that can slide with sliding rod (4) on it, and is equipped with floating block (8) on it. Filtering cylinder (9) is installed in water pumping frame (7) at the water inlet position of water pumping pipe (14), and filtering hole is uniformly made on filtering cylinder (9). Rotary rod (10) is arranged along the axial direction of filtering cylinder (9) in the filtering cylinder (9), and fan blade (12) is installed at the end of rotary rod (10), and cleaning brush (13) is installed on the inner wall of water pumping frame (7), and cleaning brush (13) can contact with the surface of filtering cylinder (9).

2. The water absorption head structure for foundation pit drainage according to claim 1, characterized in that: The frame has bottom plate (1), and supporting frame (2) is installed on bottom plate (1), and sliding rod (4) is arranged between supporting frame (2) and bottom plate (1).

3. The water absorption head structure for foundation pit drainage according to claim 2, characterized in that: The longitudinal section of the frame is trapezoidal, and the upper end is smaller.

4. The water absorption head structure for foundation pit drainage according to claim 1, characterized in that: Plug (101) is installed at the lower end of bottom plate (1).

5. The water absorption head structure for foundation pit drainage according to claim 4, characterized in that: At least two sleeve rings (5) are installed on the side wall of water pumping frame (7), and through hole (3) that can pass water pumping pipe (14) is made at the corresponding position of water pumping pipe (14) on the top of supporting frame (2).

6. The water absorption head structure for foundation pit drainage according to claim 4, characterized in that: Hanging ring (15) is installed on the frame.

7. The water absorption head structure for foundation pit drainage according to claim 4, characterized in that: ​ 8. The water absorption head structure for foundation pit drainage according to claim 1, characterized in that: ​

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