Fine silt foundation pit dewatering equipment

Abstract

The utility model discloses fine silt foundation pit dewatering equipment which comprises a dewatering tube well and a water suction pump, a steel plate is installed at the upper end of the dewatering tube well, drainage holes are formed in the outer surface of the dewatering tube well, a drainage pipe is fixedly connected to the upper end of the water suction pump and penetrates through the steel plate, and a filtering structure is arranged on the outer surface of the water suction pump. The filtering structure comprises a filtering frame, an annular cleaning brush, a stand column, a rectangular groove, a servo motor, a bearing, a threaded rod, a first groove, a rectangular sliding groove, a rectangular sliding block, a lifting column and a lifting sleeve. According to the fine silt foundation pit dewatering equipment, fine silt in a foundation pit can be filtered when water is pumped from the foundation pit, the situation that the fine silt enters the water suction pump to damage the water suction pump is avoided, the outer surface of the filtering frame can be automatically cleaned, and the situation that the outer surface of the filtering frame is blocked to cause low water pumping efficiency is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of foundation pit dewatering equipment, in particular to fine powder sand foundation pit dewatering equipment. Background Art

[0002] During the construction of foundation pit engineering, especially in areas with abundant groundwater, when the groundwater level is higher than the bottom of the excavation, groundwater will continue to seep into the pit. In order to ensure that the foundation pit can be constructed under dry conditions, to prevent slope instability, foundation sand flow, pit bottom uplift, pit bottom pipe burst and foundation bearing capacity reduction, it is necessary to lower the groundwater level to below the excavation surface before the foundation pit is excavated. For example, a highly efficient and convenient foundation pit dewatering device with a publication number of CN212104147U includes a dewatering pipe well, a steel plate and a water pump. The utility model uses an iron cage for the dewatering pipe well, which is an existing finished material and can be directly installed on site without processing. It is convenient and efficient to install, which can save a lot of human resources and a lot of construction time. The dewatering pipe well is used to filter the water preliminarily to prevent debris, earth and stone from directly entering the pump and causing the pump to be blocked. At the same time, it reduces the damage to the pump. With this dewatering device, the dewatering pipe well occupies a smaller construction site, saving construction space on site; after the foundation pit is excavated, the cut dewatering pipe well still guarantees its function and can continue to be used, avoiding waste of materials. This dewatering device can greatly improve construction efficiency, reduce labor input, has high on-site operability, and is convenient for construction; when it is necessary to dewater the fine silt foundation pit, the dewatering pipe well can filter debris and earth and stone through the drainage holes, but it cannot filter fine silt, causing the water pump to suck in fine silt during the pumping process, causing damage to the water pump. Utility Model Content

[0003] The main purpose of the utility model is to provide a fine silt foundation pit dewatering device, which can effectively solve the problems in the background technology.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A fine silt sand foundation pit dewatering equipment, including a dewatering pipe well and a water pump, a steel plate is installed on the upper end of the dewatering pipe well, a drainage hole is opened on the outer surface of the dewatering pipe well, a drainage pipe is fixedly connected to the upper end of the water pump, and the drainage pipe passes through the steel plate. A filtering structure is arranged on the outer surface of the water pump, and the filtering structure includes a filter frame, an annular cleaning brush, a column, a rectangular groove, a servo motor, a bearing, a threaded rod, a No. 1 groove, a rectangular slide, a rectangular slider, a lifting column, and a lifting sleeve.

[0006] Preferably, a water pump is fixedly installed inside the filter frame, a column is fixedly installed on the upper surface of the filter frame near the other end, and a rectangular groove is opened inside the column near the bottom surface.

[0007] Preferably, a servo motor is fixedly mounted on the bottom surface of the rectangular groove, a threaded rod is fixedly connected to the rotating part of the servo motor, and a No. 1 groove is provided on the upper surface of the column.

[0008] Preferably, a bearing is fixedly mounted in the middle of the bottom surface of the No. 1 groove, a threaded rod is movably mounted on the inner surface of the bearing, and a lifting column is spirally mounted on the outer surface of the threaded rod.

[0009] Preferably, rectangular sliding blocks are fixedly mounted on the lower ends of both end surfaces of the lifting column, and rectangular sliding grooves are provided on both end surfaces of the No. 1 groove, and rectangular sliding blocks are slidably mounted in the rectangular sliding grooves.

[0010] Preferably, a lifting sleeve is fixedly mounted on the upper end of the lifting column, an annular cleaning brush is fixedly mounted on the lower surface of the lifting sleeve, and the drain pipe passes through the filter frame.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] In the utility model, by setting up the filtering structure, the fine silt in the foundation pit can be filtered when the foundation pit is pumped, so as to prevent the fine silt from entering the interior of the water pump and causing damage to the water pump. The outer surface of the filter frame can also be automatically cleaned to prevent the outer surface of the filter frame from being blocked and causing low pumping efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of a fine silt sand foundation pit dewatering device of the utility model;

[0014] Figure 2 It is a cross-sectional view of a fine silt sand foundation pit dewatering device of the utility model;

[0015] Figure 3 The utility model is a kind of fine powder sand foundation pit dewatering equipment Figure 2 Enlarged view of point A in the middle.

[0016] In the figure: 1. downhole pipe; 2. steel plate; 3. drainage hole; 4. water pump; 401. drainage pipe; 5. filtering structure; 501. filtering frame; 502. annular cleaning brush; 503. column; 504. rectangular groove; 505. servo motor; 506. bearing; 507. threaded rod; 508. No. 1 groove; 509. rectangular slide; 510. rectangular slider; 511. lifting column; 512. lifting sleeve. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0018] like Figure 1-3 As shown, a fine powder sand foundation pit dewatering equipment includes a dewatering pipe well 1 and a water pump 4. A steel plate 2 is installed on the upper end of the dewatering pipe well 1. A drainage hole 3 is opened on the outer surface of the dewatering pipe well 1. A drainage pipe 401 is fixedly connected to the upper end of the water pump 4. The drainage pipe 401 passes through the steel plate 2. A filtering structure 5 is arranged on the outer surface of the water pump 4. The filtering structure 5 includes a filtering frame 501, an annular cleaning brush 502, a column 503, a rectangular groove 504, a servo motor 505, a bearing 506, a threaded rod 507, a No. 1 groove 508, a rectangular slide 509, a rectangular slider 510, a lifting column 511, and a lifting sleeve 512.

[0019] A water pump 4 is fixedly installed inside the filter frame 501, a column 503 is fixedly installed on the upper surface of the filter frame 501 near the other end, and a rectangular groove 504 is opened near the bottom surface of the column 503; a servo motor 505 is fixedly installed on the bottom surface of the rectangular groove 504, and a threaded rod 507 is fixedly connected to the rotating part of the servo motor 505, and a No. 1 groove 508 is opened on the upper surface of the column 503; a bearing 506 is fixedly installed in the middle of the bottom surface of the No. 1 groove 508, and a threaded rod 507 is movably installed on the inner surface of the bearing 506, and a lifting column 511 is spirally installed on the outer surface of the threaded rod 507; the lower ends of the two end surfaces of the lifting column 511 are fixed A rectangular slider 510 is installed, and rectangular slide grooves 509 are opened on the surfaces of both ends of the No. 1 groove 508, and a rectangular slider 510 is slidably installed in the rectangular slide groove 509; a lifting sleeve 512 is fixedly installed on the upper end of the lifting column 511, and a ring-shaped cleaning brush 502 is fixedly installed on the lower surface of the lifting sleeve 512. The drain pipe 401 passes through the filter frame 501, and the fine silt in the foundation pit can be filtered when the foundation pit is pumped to prevent the fine silt from entering the inside of the water pump 4 and causing damage to the water pump 4. The outer surface of the filter frame 501 can also be automatically cleaned to prevent the outer surface of the filter frame 501 from being blocked, resulting in low pumping efficiency.

[0020] It should be noted that the utility model is a fine silt foundation pit dewatering equipment. When in use, it is first necessary to put the water pump into the dewatering pipe well, and then pump water. The fine silt in the foundation pit can be filtered through the filter frame 501 to prevent the fine silt from entering the inside of the water pump 4. When the outer surface of the filter frame 501 is blocked, the servo motor 505 fixedly installed on the bottom surface of the rectangular groove 504 is started, so that the rotating part of the servo motor 505 drives the threaded rod 507 to rotate on the inner surface of the bearing 506, so that the lifting column 511 spirally installed on the outer surface of the threaded rod 507 drives the rectangular sliding block 510 fixedly installed at the lower end of its two end surfaces to move downward in the rectangular slide groove 509, so that the lifting column 511 moves downward, and the lifting sleeve 512 fixedly installed on the upper end of the lifting column 511 moves downward, driving the annular cleaning brush 502 fixedly installed on the lower surface of the lifting sleeve 512 to move downward, and the surface of the filter frame 501 is cleaned to prevent the outer surface of the filter frame 501 from being blocked, resulting in low pumping efficiency.

[0021] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A fine silt sand foundation pit dewatering equipment, characterized in that: The utility model comprises a drainage pipe well (1) and a water pump (4), wherein a steel plate (2) is installed at the upper end of the drainage pipe well (1), a drainage hole (3) is opened on the outer surface of the drainage pipe well (1), a drainage pipe (401) is fixedly connected to the upper end of the water pump (4), and the drainage pipe (401) passes through the steel plate (2), and a filtering structure (5) is arranged on the outer surface of the water pump (4), and the filtering structure (5) comprises a filtering frame (501), an annular cleaning brush (502), a column (503), a rectangular groove (504), a servo motor (505), a bearing (506), a threaded rod (507), a No. 1 groove (508), a rectangular slide groove (509), a rectangular slider (510), a lifting column (511), and a lifting sleeve (512).

2. The fine silt sand foundation pit dewatering equipment according to claim 1, characterized in that: A water pump (4) is fixedly installed inside the filter frame (501), a column (503) is fixedly installed on the upper surface of the filter frame (501) near the other end, and a rectangular groove (504) is opened inside the column (503) near the bottom surface.

3. The fine silt sand foundation pit dewatering equipment according to claim 2, characterized in that: A servo motor (505) is fixedly mounted on the bottom surface of the rectangular groove (504), a threaded rod (507) is fixedly connected to the rotating part of the servo motor (505), and a first groove (508) is provided on the upper surface of the column (503).

4. The fine silt sand foundation pit dewatering equipment according to claim 3, characterized in that: A bearing (506) is fixedly mounted in the middle of the bottom surface of the first groove (508), a threaded rod (507) is movably mounted on the inner surface of the bearing (506), and a lifting column (511) is spirally mounted on the outer surface of the threaded rod (507).

5. The fine silt sand foundation pit dewatering equipment according to claim 4, characterized in that: A rectangular sliding block (510) is fixedly installed at the lower end of the two end surfaces of the lifting column (511), and a rectangular sliding groove (509) is opened on the two end surfaces of the first groove (508), and a rectangular sliding block (510) is slidably installed in the rectangular sliding groove (509).

6. The fine silt sand foundation pit dewatering equipment according to claim 5, characterized in that: A lifting sleeve (512) is fixedly mounted on the upper end of the lifting column (511), an annular cleaning brush (502) is fixedly mounted on the lower surface of the lifting sleeve (512), and the drainage pipe (401) passes through the filter frame (501).

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