Water conservancy project foundation pit drainage support

Abstract

The utility model discloses a water conservancy project foundation pit drainage support which comprises three or more anchoring rods which are vertically arranged, a top plate is horizontally installed on the anchoring rods, a water pump is arranged under the top plate, the water pump is placed on a floating disc, the floating disc floats on the water surface, a center hole is formed in the floating disc, and the center hole is communicated with the top plate. A water pumping pipe of the water pump is vertically and downwards inserted into the center hole, a plurality of water pumping holes are formed in the outer wall of the water pumping pipe, and a grounding sealing assembly is installed at the bottom end of the water pumping pipe. The water pump mounting structure has the advantages that the water pump can ascend and descend along with the change of the water level, the mounting position of the water pump does not need to be adjusted frequently, the bottoming sealing assembly is designed, when the water level is low, the bottoming sealing assembly can seal a water pumping pipe of the water pump, and the water pump is prevented from pumping mud; the device is worthy of wide-range popularization and application.

Description

Technical fields:

[0001] This utility model relates to the field of foundation pit drainage equipment technology, and in particular to a foundation pit drainage support for water conservancy projects. Background technology:

[0002] During water conservancy construction, drainage works effectively protect the construction and use of water conservancy facilities. As a crucial component of the drainage system, the foundation pit is of great significance to the construction operation. If groundwater and surface water flowing into the pit cannot be drained in time, it will worsen construction conditions, causing soil wall collapse and affecting the bearing capacity of the water conservancy facility's foundation. Therefore, water pumps are needed to extract the water accumulated in the foundation pit. However, if the pump is submerged directly to the bottom of the pit, where a large amount of silt often accumulates, direct extraction can easily damage the pump. Blockages have led to the emergence of numerous foundation pit drainage supports on the market. The basic structure of these supports includes anchor rods, on which a liftable water pump fixing device is installed. Adjusting the pump's installation height prevents it from sinking into the foundation pit. However, this drainage method still has room for improvement: 1. Due to constantly changing water levels, the pump's installation height needs frequent adjustment. If the height adjustment is not timely, it can easily lead to pump blockages; 2. Once a pump becomes blocked, if the foundation pit area is large, removing the pump and transporting it to the shore for repair is time-consuming and labor-intensive, requiring immediate improvement. Utility model content:

[0003] The purpose of this utility model is to provide a drainage support for foundation pits in water conservancy projects, so as to solve the technical problems of existing foundation pit drainage supports that require frequent adjustment of the installation height of the water pump and time-consuming and labor-intensive maintenance and extraction.

[0004] The utility model discloses a drainage support for a foundation pit in a water conservancy project, comprising three or more vertically arranged anchor rods, a top plate horizontally installed on the anchor rods, a water pump positioned directly below the top plate, the water pump placed on a floating plate that floats on the water surface, a central hole on the floating plate, a vertically downward-facing pumping pipe inserted into the central hole, several pumping holes on the outer wall of the pumping pipe, a bottom-contact sealing assembly installed at the bottom end of the pumping pipe for sealing the pumping holes during low water levels, a steel wire rope connected to the top of the water pump and driven by a winch, and a maintenance sliding assembly installed on the anchor rods for maintenance of the water pump.

[0005] Furthermore, the bottom sealing assembly includes a horizontally arranged annular plate, which is fixedly fitted onto the bottom of the pumping pipe. Several sliding holes are provided on the annular plate, and a sliding column is slidably inserted into the sliding holes. A limiting platform is installed at the top of the sliding column, and the bottom end of the sliding column is connected to a sealing cover. A compression spring is fitted on the sliding column, and the compression spring is located between the annular plate and the sealing cover. A sealing cylinder is connected to the sealing cover, and the sealing cylinder is slidably connected to the inner wall of the pumping pipe.

[0006] Furthermore, the maintenance sliding assembly includes a crossbeam fixedly installed on the anchor rod, a sliding groove is inclinedly opened on the crossbeam, a maintenance slide plate is slidably inserted into the sliding groove, a notch positioning groove matching the water pumping pipe is opened on the maintenance slide plate, and two limiting plates are installed on the maintenance slide plate, with the two limiting plates arranged on both sides of the crossbeam.

[0007] Furthermore, two mounting slots are provided on the maintenance slide plate, and the two mounting slots are arranged on both sides of the positioning slot. Several rollers are rotatably connected in the mounting slots, and the diameter of the rollers is greater than the thickness of the maintenance slide plate.

[0008] Furthermore, a magnetic plate is installed on the limiting plate, which is used to magnetically attract the crossbeam.

[0009] Furthermore, several connecting plates are evenly distributed on the outer circumference of the floating plate, and through holes are provided on the connecting plates. The anchor rod is inserted into the through holes. A fixed pulley is installed on the top plate, and a through hole is provided on the top plate. The wire rope passes through the through hole and is wound around the fixed pulley.

[0010] The beneficial effects of this utility model are as follows: The floating roof structure of the water pump allows the water pump to rise and fall with changes in water level, eliminating the need for frequent adjustments to the pump's installation position. The bottom-sealing component seals the pump's suction pipe when the water level is low, preventing the pump from drawing in mud. Furthermore, the design of the maintenance sliding component allows for convenient and quick transport of the pump from above the water surface to the shore, facilitating inspection and maintenance. This design is worthy of widespread adoption. Attached image description:

[0011] Figure 1 This is a perspective view of the present utility model;

[0012] Figure 2 This is the front view of the present invention;

[0013] Figure 3 for Figure 2 A magnified structural diagram of part A;

[0014] Figure 4 A 3D view for inspecting the sliding assembly;

[0015] Figure 5 A 3D view of the floating platform;

[0016] In the diagram, the components are: anchor rod 1, top plate 2, wire rope 3, water pump 4, pumping pipe 5, pumping hole 6, sealing cylinder 7, sliding column 9, compression spring 10, ring plate 11, floating plate 12, sealing cover 13, fixed pulley 14, inspection slide plate 15, positioning groove 16, roller 17, limiting plate 18, magnet plate 19, center hole 20, and connecting plate 21. Detailed implementation method:

[0017] like Figure 1 , Figure 3 and Figure 5 As shown, a drainage support for a foundation pit in a water conservancy project includes three or more vertically arranged anchor rods 1. A top plate 2 is horizontally installed on the anchor rods 1. A water pump 4 is installed directly below the top plate 2. The water pump 4 is placed on a float 12, which floats on the water surface. A central hole 20 is opened on the float 12. The water pump 4's pumping pipe 5 is vertically inserted into the central hole 20. Several pumping holes 6 are opened on the outer wall of the pumping pipe 5. A bottom-contact sealing component is installed at the bottom end of the pumping pipe 5. The bottom-contact sealing component is used to seal the pumping holes 6 when the water level is low. A steel wire rope 3 is connected to the top of the water pump 4. The steel wire rope 3 is connected to a winch. A maintenance sliding component is also installed on the anchor rods 1. The diameter of the maintenance sliding component is smaller than the diameter inside the central hole 20. The maintenance sliding component is used for maintenance of the water pump 4.

[0018] like Figure 2 and Figure 3 As shown, the bottom sealing assembly includes a horizontally arranged annular plate 11, which is fixedly fitted onto the bottom of the pumping pipe 5. Several sliding holes are provided on the annular plate 11, and a sliding column 9 is slidably inserted into the sliding holes. A limiting platform is installed at the top of the sliding column 9, and the bottom end of the sliding column 9 is connected to the sealing cover 13. A compression spring 10 is fitted on the sliding column 9, and the compression spring 10 is located between the annular plate 11 and the sealing cover 13. A sealing cylinder 7 is connected to the sealing cover 13, and the sealing cylinder 7 is slidably connected to the inner wall of the pumping pipe 5.

[0019] like Figure 1 and Figure 4As shown, the maintenance sliding assembly includes a crossbeam fixedly installed on the anchor rod 1. An inclined groove is formed on the crossbeam, and a maintenance slide plate 15 is slidably inserted into the groove. A notch positioning groove 16 matching the water pump pipe 5 is formed on the maintenance slide plate 15. Two limiting plates 18 are installed on the maintenance slide plate 15, positioned on both sides of the crossbeam. Two mounting slots are formed on the maintenance slide plate 15, positioned on both sides of the positioning groove 16. Several rollers 17 are rotatably connected within the mounting slots, and the diameter of the rollers 17 is greater than the thickness of the maintenance slide plate 15. A magnetic plate 19 is installed on the limiting plate 18, and the magnetic plate 19 is used to magnetically attract the crossbeam.

[0020] like Figure 1 and Figure 5 As shown, several connecting plates 21 are evenly distributed on the outer circumference of the floating plate 12. Through holes are opened on the connecting plates 21, and the anchor rod 1 is inserted into the through hole. A fixed pulley 14 is installed on the top plate 2, and a through hole is opened on the top plate 2. The wire rope 3 passes through the through hole and is wound around the fixed pulley 14.

[0021] In specific work, such as Figures 1 to 5 As shown, due to the buoyancy of the floating plate 12, the water pump 4 rises and falls with the water level. When the water level is about to reach its limit, the sealing cover 13 first touches the bottom of the pit. Due to the weight of the water pump 4 itself, the sealing cover 13 is compressed, thereby driving the sealing cylinder 7 to move upward, so that the sealing cylinder 7 seals the water pumping hole 6 and prevents mud from being pumped in. When the water pump 4 malfunctions, the winch is started to lift the water pump 4 to a high position, and then the inspection slide plate 15 is pushed inward until the magnetic plate 19 is magnetically attracted to the outer wall of the crossbeam. At this time, the winch is started to lower the water pump 4, and the water pumping pipe 5 is confirmed to be inserted into the positioning groove 16 and continue to be lowered until the bottom of the water pump 4 contacts the roller 17. At this time, the winch is controlled to release the wire rope 3, and the water pump 4 slides down to the position of the crossbeam by its own weight, which is convenient for inspection and maintenance.

[0022] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A drainage support for a foundation pit in a water conservancy project, characterized in that: It includes three or more vertically arranged anchor rods (1), a top plate (2) is horizontally installed on the anchor rods (1), a water pump (4) is arranged directly below the top plate (2), the water pump (4) is placed on a float (12), the float (12) floats on the water surface, a central hole (20) is opened on the float (12), the water pump (4)'s pumping pipe (5) is vertically inserted into the central hole (20), a number of pumping holes (6) are opened on the outer wall of the pumping pipe (5), a bottom sealing assembly is installed at the bottom end of the pumping pipe (5), the bottom sealing assembly is used to seal the pumping holes (6) when the water level is low, a steel wire rope (3) is connected to the top of the water pump (4), the steel wire rope (3) is connected to the winch drive, and a maintenance sliding assembly is also installed on the anchor rods (1), the maintenance sliding assembly is used for the maintenance of the water pump (4).

2. The drainage support for a foundation pit in a water conservancy project according to claim 1, characterized in that: The bottom sealing assembly includes a horizontally arranged ring plate (11), which is fixedly fitted at the bottom of the pumping pipe (5). Several sliding holes are provided on the ring plate (11), and a sliding column (9) is slidably inserted into the sliding holes. A limiting platform is installed at the top of the sliding column (9), and the bottom end of the sliding column (9) is connected to the sealing cover (13). A compression spring (10) is fitted on the sliding column (9), and the compression spring (10) is located between the ring plate (11) and the sealing cover (13). A sealing cylinder (7) is connected to the sealing cover (13), and the sealing cylinder (7) is slidably connected to the inner wall of the pumping pipe (5).

3. The drainage support for a foundation pit in a water conservancy project according to claim 1, characterized in that: The maintenance sliding assembly includes a crossbeam fixedly installed on the anchor rod (1), a sliding groove is inclinedly opened on the crossbeam, a maintenance sliding plate (15) is slidably inserted in the sliding groove, a notch positioning groove (16) matching the water pumping pipe (5) is opened on the maintenance sliding plate (15), and two limiting plates (18) are installed on the maintenance sliding plate (15), with the two limiting plates (18) arranged on both sides of the crossbeam.

4. A drainage support for a foundation pit in a water conservancy project according to claim 3, characterized in that: Two mounting slots are provided on the inspection slide plate (15), and the two mounting slots are arranged on both sides of the positioning slot (16). Several rollers (17) are rotatably connected in the mounting slots, and the diameter of the rollers (17) is greater than the thickness of the inspection slide plate (15).

5. A drainage support for a foundation pit in a water conservancy project according to claim 3, characterized in that: A magnet plate (19) is installed on the limiting plate (18), and the magnet plate (19) is used to magnetically attract the crossbeam.

6. A drainage support for a foundation pit in a hydraulic engineering project according to any one of claims 1 to 5, characterized in that: Several connecting plates (21) are evenly distributed on the outer circumference of the floating plate (12). Through holes are opened on the connecting plates (21), and the anchor rod (1) is inserted into the through hole. A fixed pulley (14) is installed on the top plate (2). A through hole is opened on the top plate (2), and the wire rope (3) passes through the through hole and is wound around the fixed pulley (14).

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