Deep foundation pit engineering drainage device

By combining the lifting and limiting components, the drainage device for deep foundation pit projects can be automatically adjusted, solving the problem that the pumping end cannot be adjusted according to the depth of the foundation pit in the existing technology, thus improving pumping efficiency and convenience.

CN224259427UActive Publication Date: 2026-05-19GANSU SECOND CONSTR GRP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GANSU SECOND CONSTR GRP CO LTD
Filing Date
2025-06-04
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing drainage systems for deep foundation pit projects cannot automatically adjust the pumping end according to the depth of the foundation pit, resulting in low efficiency and inconvenience in use.

Method used

Employing lifting and limiting components, the pumping pipe and pumping head are automatically lowered to the lowest part of the pit via a lifting motor. Combined with the filtration component, automatic adjustment is achieved. The pumping component draws water into the filter and then discharges it. The filter component has a replaceable filter element.

Benefits of technology

It enables automatic adjustment of the pumping head according to the depth of the foundation pit, which improves pumping efficiency, simplifies the operation process, and enhances ease of use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of foundation pit drainage, in particular to a deep foundation pit engineering drainage device which comprises a placing plate, a supporting block, a lifting assembly, a water pumping pipe, a water pumping head, a water pumping assembly, a filtering assembly, two limiting assemblies and two supporting frames, a through hole is formed in the center of the placing plate, and the two limiting assemblies are symmetrically arranged at the bottom of the placing plate. The two supporting frames are symmetrically arranged at the top of the containing plate, the supporting block is installed at the top ends of the two supporting frames, the lifting assembly is installed on the supporting block, the water pumping pipe is installed at the bottom end of the lifting assembly, the water pumping head is installed at the bottom of the water pumping pipe, and the water pumping head communicates with the water pumping pipe. According to the water pumping device, the water pumping head can be automatically lowered and adjusted according to the depth of a foundation pit, manual folding and unfolding treatment is not needed, and the water pumping device is high in efficiency and convenient to use.
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Description

Technical Field

[0001] This utility model relates to the field of foundation pit drainage technology, specifically a drainage device for deep foundation pit engineering. Background Technology

[0002] A deep foundation pit refers to an excavation depth exceeding 5 meters, or an engineering project with particularly complex geological conditions, surrounding environment, and underground pipelines, even if the depth does not exceed 5 meters. During construction, a large amount of groundwater will be present in the deep foundation pit after excavation. To ensure normal construction, it is necessary to pump out the groundwater from the deep foundation pit.

[0003] Chinese utility model patent CN218204508U discloses a drainage device for deep foundation pit engineering, including a base, a moving mechanism fixedly installed at the bottom of the base, a vertical water pump fixedly installed at the top center of the base, a protective cover fixedly connected to the outer side of the top of the base, a water pump pipe and a water drain pipe fixedly connected to the left and right sides of the vertical water pump respectively, and a filter seat fixedly installed at the other end of the water pump through the left side of the protective cover. The top of the filter seat has a sealing structure, and a water inlet is opened on the left side of the filter seat. The filter seat has a first slot and a second slot on the left and right sides respectively inside the filter seat. A silt filter screen is engaged inside the first slot, and a filter cotton board is engaged inside the second slot. The other end of the drain pipe passes through the right side of the protective cover. This utility model uses the above structure, where the silt filter screen inside the first slot is used to filter silt in sewage, and the filter cotton board inside the second slot is used to filter fine impurities in the water, thereby purifying the water quality.

[0004] However, the above-mentioned patent still has the following shortcomings in actual use: the patent cannot automatically adjust the pumping end according to the depth of the pit, and adopts a manual raising and lowering method, which is inefficient and inconvenient. Utility Model Content

[0005] The purpose of this utility model is to provide a drainage device for deep foundation pit engineering, so as to solve the problem mentioned in the background art that the pumping end cannot be automatically lowered and adjusted according to the depth of the foundation pit, and the manual raising and lowering method is inefficient and inconvenient.

[0006] The technical solution of this utility model is:

[0007] A drainage device for deep foundation pit engineering includes a placement plate, a support block, a lifting assembly, a pumping pipe, a pumping head, a pumping component, a filtering assembly, two limiting assemblies, and two support frames. The placement plate has a through hole at its center. The two limiting assemblies are symmetrically arranged at the bottom of the placement plate, and the two support frames are symmetrically arranged at the top of the placement plate. The support block is mounted on the top of the two support frames. The lifting assembly is mounted on the support block. The pumping pipe is mounted at the bottom of the lifting assembly. The pumping head is mounted at the bottom of the pumping pipe and is connected to the pumping pipe. The filtering assembly is mounted on the top of the placement plate. The pumping assembly is mounted on the top of the placement plate, and both ends of the pumping assembly are connected to the pumping pipe and the filtering assembly, respectively.

[0008] Furthermore, the lifting assembly includes a lifting column, a lifting rack, a lifting seat, a lifting shaft, a lifting gear, a lifting motor, a support wheel, and two support frames. The lifting column is slidably mounted on the support block. The lifting rack is vertically mounted on the outer wall of the lifting column. The lifting seat is mounted on the top of one of the support frames. The lifting shaft is rotatably mounted on the lifting seat. The lifting gear is mounted on the lifting shaft and meshes with the lifting rack. The lifting motor is horizontally mounted on the outer wall of the lifting seat, and the output shaft of the lifting motor is connected to the lifting shaft. The two support frames are symmetrically arranged on the top outer wall of the lifting column, and the support wheel is rotatably mounted on the two support frames.

[0009] Furthermore, the filter assembly includes a filter box, a top plate, a drain pipe, two clamping components, and multiple filter elements. The filter box is installed on top of the placement plate, and the multiple filter elements are arranged at equal intervals on the filter box, with the bottom ends of the multiple filter elements extending into the filter box. The top plate is installed on top of the multiple filter elements, and the drain pipe is installed on the outer wall of the filter box. The two clamping components are symmetrically arranged on the outer wall of the filter box, and the two clamping components are used to clamp and limit the top plate.

[0010] Furthermore, the pressing component includes a horizontal plate, a rotating shaft, and a pressure strip. The horizontal plate is installed on the outer wall of the filter box, the rotating shaft is rotatably installed on the top of the horizontal plate, the pressure strip is installed on the top of the rotating shaft, and the bottom end of the pressure strip abuts against the top plate and presses against it.

[0011] Furthermore, the water pumping assembly includes a water pump, an inlet hose, and an outlet pipe. The water pump is horizontally positioned on top of the placement plate. One end of the inlet hose is connected to the input end of the water pump, and the other end of the inlet hose passes through the support wheel and the lifting column and is connected to the water pumping pipe. The two ends of the outlet pipe are respectively connected to the output end of the water pump and the filter box.

[0012] Furthermore, the limiting component includes a movable frame, a movable block, an arc-shaped clamping block, and a hydraulic push rod. The movable frame is slidably mounted on the bottom of the placement plate, the movable block is mounted on the bottom of the movable frame, the arc-shaped clamping block is mounted on the outer wall of the movable block, and the hydraulic push rod is horizontally arranged on the bottom of the placement plate, with its output end connected to the movable frame.

[0013] This utility model provides an improved drainage device for deep foundation pit engineering, which has the following improvements and advantages compared with the prior art:

[0014] Firstly, this utility model places the placement plate on top of the foundation pit, and then two limiting components clamp and fix it to the top of the foundation pit. Next, the lifting component drives the water pumping pipe and the water pumping head to move automatically downward. The water pumping head moves down to the lowest part of the foundation pit, and the water pumping component pumps the water in the foundation pit into the filtration component. The filtration component filters the water and then discharges it. This realizes that the water pumping head can be automatically lowered and adjusted according to the depth of the foundation pit, without the need for manual raising and lowering, which is highly efficient and convenient to use.

[0015] Secondly, the working principle of this utility model is to pump water from the pit into the filter box, where multiple filter elements filter the water. The filtered water is then discharged through the drain pipe. Two clamping components clamp and limit the top plate. When multiple filter elements need to be replaced, one end of the two clamping components is simply separated from the top plate. Attached Figure Description

[0016] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of this utility model. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the three-dimensional structure of this utility model. Figure 2 ;

[0019] Figure 3 This is a partial three-dimensional structural diagram of the present invention. Figure 1 ;

[0020] Figure 4 This is a partial three-dimensional structural diagram of the present invention. Figure 2 ;

[0021] Figure 5 This is a partial three-dimensional structural diagram of the present invention. Figure 3 ;

[0022] Figure 6 This is a partial three-dimensional structural diagram of the present invention. Figure 4 .

[0023] Explanation of reference numerals in the attached figures:

[0024] Placement plate 1, through hole 11, support block 2, lifting assembly 3, lifting column 31, lifting rack 32, lifting seat 33, lifting shaft 34, lifting gear 35, lifting motor 36, bearing wheel 37, bearing frame 38, water pumping pipe 4, water pumping head 5, water pumping assembly 6, water pump 61, water inlet hose 62, water outlet pipe 63, filter assembly 7, filter box 71, top plate 72, drain pipe 73, pressing component 74, filter element 75, horizontal plate 76, rotating shaft 77, pressure bar 78, limit assembly 8, moving frame 81, moving block 82, arc-shaped clamping block 83, hydraulic push rod 84, support frame 9. Detailed Implementation

[0025] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0026] This utility model provides an improved drainage device for deep foundation pit engineering, such as... Figures 1-3 As shown, the system includes a placement plate 1, a support block 2, a lifting assembly 3, a water pump pipe 4, a water pump head 5, a water pump assembly 6, a filter assembly 7, two limiting assemblies 8, and two support frames 9. The placement plate 1 has a through hole 11 at its center. The two limiting assemblies 8 are symmetrically arranged at the bottom of the placement plate 1, and the two support frames 9 are symmetrically arranged at the top of the placement plate 1. The support block 2 is mounted on the top of the two support frames 9. The lifting assembly 3 is mounted on the support block 2. The water pump pipe 4 is mounted at the bottom of the lifting assembly 3. The water pump head 5 is mounted at the bottom of the water pump pipe 4 and is connected to the water pump pipe 4. The filter assembly 7 is mounted on... The water pumping assembly 6 is installed on the top of the placement plate 1, and its two ends are connected to the water pumping pipe 4 and the filter assembly 7, respectively. By placing the placement plate 1 on the top of the pit, the two limiting assemblies 8 clamp and fix it to the top of the pit. Then, the lifting assembly 3 drives the water pumping pipe 4 and the water pumping head 5 to move automatically downward. The water pumping head 5 moves downward to the lowest part of the pit, and the water pumping assembly 6 pumps the water in the pit into the filter assembly 7. The filter assembly 7 filters the water and discharges it. This realizes that the water pumping head 5 can be automatically lowered and adjusted according to the depth of the pit, without the need for manual lowering and raising, which is efficient and convenient to use.

[0027] Specifically, the lifting assembly 3 includes a lifting column 31, a lifting rack 32, a lifting seat 33, a lifting shaft 34, a lifting gear 35, a lifting motor 36, a support wheel 37, and two support frames 38. The lifting column 31 is slidably mounted on the support block 2. The lifting rack 32 is vertically mounted on the outer wall of the lifting column 31. The lifting seat 33 is mounted on the top of one of the support frames 9. The lifting shaft 34 is rotatably mounted on the lifting seat 33. The lifting gear 35 is mounted on the lifting shaft 34 and meshes with the lifting rack 32. The lifting motor 36 is horizontally mounted. The lifting column 31 is mounted on the outer wall of the lifting seat 33, and the output shaft of the lifting motor 36 is connected to the lifting shaft 34. Two support frames 38 are symmetrically arranged on the top outer wall of the lifting column 31. The support wheel 37 is rotatably mounted on the two support frames 38. The lifting motor 36 drives the lifting shaft 34 and the lifting gear 35 to rotate. The lifting gear 35 uses the lifting rack 32 to drive the lifting column 31 to move downward. In turn, the lifting column 31 drives the pump head 5 to move downward, so that the pump head 5 can be automatically lowered and adjusted according to the depth of the pit. The support wheel 37 supports one end of the pumping assembly 6.

[0028] Specifically, the filter assembly 7 includes a filter box 71, a top plate 72, a drain pipe 73, two clamping components 74, and multiple filter elements 75. The filter box 71 is installed on the top of the placement plate 1. The multiple filter elements 75 are evenly spaced on the filter box 71, and the bottom ends of the multiple filter elements 75 extend into the filter box 71. The top plate 72 is installed on the top of the multiple filter elements 75. The drain pipe 73 is installed on the outer wall of the filter box 71. The two clamping components 74 are symmetrically arranged on the outer wall of the filter box 71, and the two clamping components 74 are used to clamp and limit the top plate 72. The water pumping assembly 6 works to pump water from the pit into the filter box 71. Then, the multiple filter elements 75 filter the water. The filtered water is discharged through the drain pipe 73. The two clamping components 74 clamp and limit the top plate 72. When it is necessary to replace the multiple filter elements 75, it is only necessary to separate one end of the two clamping components 74 from the top plate 72.

[0029] Specifically, the pressing component 74 includes a horizontal plate 76, a rotating shaft 77, and a pressing strip 78. The horizontal plate 76 is installed on the outer wall of the filter box 71. The rotating shaft 77 is rotatably installed on the top of the horizontal plate 76. The pressing strip 78 is installed on the top of the rotating shaft 77, and the bottom end of the pressing strip 78 abuts and presses against the top plate 72. By rotating the rotating shaft 77, the pressing strip 78 is driven to rotate, and the bottom end of the pressing strip 78 rotates until it separates from the top plate 72, at which point the top plate 72 can be removed.

[0030] Specifically, the water pumping assembly 6 includes a water pump 61, an inlet hose 62, and an outlet pipe 63. The water pump 61 is horizontally positioned on top of the placement plate 1. One end of the inlet hose 62 is connected to the input end of the water pump 61, and the other end of the inlet hose 62 passes through the bearing wheel 37 and the lifting column 31 and is connected to the water pumping pipe 4. The two ends of the outlet pipe 63 are respectively connected to the output end of the water pump 61 and the filter box 71. The water pump 61 draws water from the pit and enters the filter box 71 through the inlet hose 62 and the outlet pipe 63.

[0031] Specifically, the limiting component 8 includes a movable frame 81, a movable block 82, an arc-shaped clamping block 83, and a hydraulic push rod 84. The movable frame 81 is slidably mounted on the bottom of the placement plate 1, the movable block 82 is mounted on the bottom of the movable frame 81, the arc-shaped clamping block 83 is mounted on the outer wall of the movable block 82, and the hydraulic push rod 84 is horizontally positioned on the bottom of the placement plate 1, with its output end connected to the movable frame 81. The hydraulic push rod 84 drives the movable frame 81 and the movable block 82 to move, and the movable block 82 drives the arc-shaped clamping block 83 to contact the top of the pit for clamping.

[0032] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A drainage device for deep foundation pit engineering, characterized in that: The assembly includes a placement plate (1), a support block (2), a lifting assembly (3), a water pumping pipe (4), a water pumping head (5), a water pumping assembly (6), a filter assembly (7), two limiting assemblies (8), and two support frames (9). The placement plate (1) has a through hole (11) at its center. The two limiting assemblies (8) are symmetrically arranged at the bottom of the placement plate (1), and the two support frames (9) are symmetrically arranged at the top of the placement plate (1). The support block (2) is installed on the top of the two support frames (9). The lifting assembly (3) is installed on the support block (2). The water pumping pipe (4) is installed at the bottom of the lifting assembly (3). The water pumping head (5) is installed at the bottom of the water pumping pipe (4) and is connected to the water pumping pipe (4). The filter assembly (7) is installed at the top of the placement plate (1). The water pumping assembly (6) is installed at the top of the placement plate (1) and is connected to the water pumping pipe (4) and the filter assembly (7) at both ends.

2. The drainage device for deep foundation pit engineering according to claim 1, characterized in that: The lifting assembly (3) includes a lifting column (31), a lifting rack (32), a lifting seat (33), a lifting shaft (34), a lifting gear (35), a lifting motor (36), a bearing wheel (37), and two bearing frames (38). The lifting column (31) is slidably mounted on the support block (2). The lifting rack (32) is vertically mounted on the outer wall of the lifting column (31). The lifting seat (33) is mounted on the top of one of the support frames (9). The lifting shaft (34) is rotatably mounted on the lifting seat (33). The lifting gear (35) is mounted on the lifting shaft (34) and meshes with the lifting rack (32). The lifting motor (36) is horizontally mounted on the outer wall of the lifting seat (33) and the output shaft of the lifting motor (36) is connected to the lifting shaft (34). The two bearing frames (38) are symmetrically arranged on the top outer wall of the lifting column (31). The bearing wheel (37) is rotatably mounted on the two bearing frames (38).

3. A deep foundation pit drainage device according to claim 2, characterized in that: The filter assembly (7) includes a filter box (71), a top plate (72), a drain pipe (73), two clamping parts (74), and multiple filter elements (75). The filter box (71) is installed on the top of the placement plate (1). The multiple filter elements (75) are evenly spaced on the filter box (71), and the bottom ends of the multiple filter elements (75) extend into the filter box (71). The top plate (72) is installed on the top of the multiple filter elements (75). The drain pipe (73) is installed on the outer wall of the filter box (71). The two clamping parts (74) are symmetrically arranged on the outer wall of the filter box (71), and the two clamping parts (74) are used to clamp and limit the top plate (72).

4. A deep foundation pit drainage device according to claim 3, characterized in that: The pressing component (74) includes a horizontal plate (76), a rotating shaft (77), and a pressing strip (78). The horizontal plate (76) is installed on the outer wall of the filter box (71). The rotating shaft (77) is rotatably installed on the top of the horizontal plate (76). The pressing strip (78) is installed on the top of the rotating shaft (77), and the bottom end of the pressing strip (78) abuts against the top plate (72) and presses it.

5. A deep foundation pit drainage device according to claim 3, characterized in that: The water pumping assembly (6) includes a water pump (61), an inlet hose (62), and an outlet pipe (63). The water pump (61) is horizontally positioned on the top of the placement plate (1). One end of the inlet hose (62) is connected to the input end of the water pump (61), and the other end of the inlet hose (62) passes through the bearing wheel (37) and the lifting column (31) and is connected to the water pumping pipe (4). The two ends of the outlet pipe (63) are respectively connected to the output end of the water pump (61) and the filter box (71).

6. A drainage device for deep foundation pit engineering according to claim 1, characterized in that: The limiting component (8) includes a movable frame (81), a movable block (82), an arc-shaped clamping block (83), and a hydraulic push rod (84). The movable frame (81) is slidably mounted on the bottom of the placement plate (1). The movable block (82) is mounted on the bottom of the movable frame (81). The arc-shaped clamping block (83) is mounted on the outer wall of the movable block (82). The hydraulic push rod (84) is horizontally positioned on the bottom of the placement plate (1), and the output end of the hydraulic push rod (84) is connected to the movable frame (81).