Device for automatically cleaning precast pile hole and using method thereof

By designing an automatic cleaning device for precast pile holes, and utilizing a combination of a water pump and a hole cleaning unit, the problem of unclean precast pile hole walls was solved, thereby improving the waterproof performance and connection stability of the concrete.

CN121519508APending Publication Date: 2026-02-13SHANGHAI ERSHIYE CONSTR CO LTD +1
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Patent Information

Application Number
CN202511847391.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-09
Publication Date
2026-02-13

AI Technical Summary

Technical Problem

Existing technologies cannot effectively ensure the cleanliness and smoothness of the hole walls when cleaning precast pile holes, which affects the waterproofness and connection stability of the concrete after it has solidified.

Method used

An automatic cleaning device for precast pile holes was designed, comprising a water pumping section and a hole cleaning section. Utilizing a water pump, a diversion pipe, a mud cutting unit, and a mud cleaning unit, the device achieves automated cleaning through water pumping, cutting, and cleaning of the soil.

Benefits of technology

This method achieves a clean and smooth precast pile hole wall, improves the waterproof performance and connection stability of the concrete, and reduces labor and costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention provides a device for automatically cleaning a precast pile hole and a using method thereof. The device comprises a water pumping part and a hole cleaning part, the water pumping part comprises a water pump and a water storage container, and the hole cleaning part comprises a flow guide pipe, a water outlet pipe, a mud cutting unit and a mud cleaning unit. During use, the water pumping part is arranged outside the precast pile hole, the hole cleaning part extends into the precast pile hole, then the water pump is started, water outside the precast pile hole is pumped out, stored in the water storage container, communicated with the flow guide pipe and sprayed to the wall of the precast pile hole through the water outlet pipe, and soil on the wall of the hole is softened; softened soil on the hole wall of the precast pile is cut and cleaned through the soil cutting unit, operation is easy, cost is low, and the hole cleaning effect is good.
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Description

Technical Field

[0001] This invention belongs to the field of building engineering technology, and in particular relates to an automatic cleaning device for precast pile holes and its usage method. Background Technology

[0002] Static pile driving is a method of engineering pile foundation construction. It is a pile driving process in which precast piles are driven into the soil by the pile driving mechanism of a static pile driver, which uses the pile driver's own weight and the counterweight on the frame to provide reaction force.

[0003] The conventional construction procedure for static pressure piles is as follows: first, precast piles are driven into the site; then, earthwork is excavated to form a foundation pit, exposing the top of the piles; next, a cushion layer is poured, and concrete is poured into the exposed pile top holes to connect the engineering piles with the building's foundation.

[0004] To ensure an effective connection between the precast piles and the pile cap, the precast pile holes need to be cleaned before pouring concrete. A clean and smooth precast pile hole wall is an important guarantee for the waterproofness and connection stability after the concrete has solidified. Summary of the Invention

[0005] This invention provides an automatic cleaning device for precast pile holes, which has a simple structure, is easy to use, and can automatically clean the precast pile holes.

[0006] The technical solution provided by this invention is: an automatic cleaning device for precast pile holes, comprising a pumping part and a hole cleaning part; The water pumping section includes a water pump and a water storage container, and the water pumped out by the water pump is stored in the water storage container. The cleaning section includes a guide pipe, a water outlet pipe, a mud cutting unit, and a mud cleaning unit; The guide pipe is open at one end along its length, denoted as the open end, and closed at the other end, denoted as the closed end. The open end is connected to the water storage container, and several outlet pipes are connected near the closed end. The mud-cutting unit includes a first engine and several blades. When the first engine is turned on, it drives the blades to rotate. When the blades come into contact with the mud, they can cut the mud. The mud cleaning unit includes a second engine and several mud cleaning plates. When the second engine is turned on, it drives each mud cleaning plate to rotate. When each mud cleaning plate comes into contact with the mud, it can clean the mud.

[0007] In this invention, the direction parallel to the length of the guide tube is called the axial direction, the direction perpendicular to the axial direction is called the radial direction, and the axial direction from the open end to the closed end of the guide tube is called the positive axial direction.

[0008] Preferably, the pumping section has two layers, with the water pump located on the upper layer and the water storage container on the lower layer. More preferably, the pumping section includes an inspection window for easy repair of the water pump.

[0009] Preferably, a bracket is provided to support the pumping section.

[0010] Preferably, the water outlet pipes are arranged radially.

[0011] Preferably, the water outlet pipe, the sludge cleaning unit, and the sludge cutting unit are arranged sequentially along the positive axis.

[0012] Preferably, the cleaning plates are radially distributed.

[0013] Preferably, each mud-cleaning plate is connected to the second engine via a connecting rod. More preferably, each mud-cleaning plate is connected to the second engine via several connecting rods, and these connecting rods are sequentially connected by connecting bolts. Even more preferably, at least one connecting rod is telescopic. As a preferred implementation, the telescopic length of the connecting rod is achieved using a spring telescopic device.

[0014] Preferably, each cleaning plate and the connecting rod are connected by welding.

[0015] When using the device of the present invention to automatically clean precast pile holes, the following steps are included: (1) The pumping part is placed outside the precast pile hole, and the cleaning part is placed inside the precast pile hole; (2) Turn on the water pump to pump out the water outside the precast pile hole and store it in the water storage container, and connect it to the diversion pipe; (3) The water in the diversion pipe is sprayed out through the outlet pipe to the precast pile hole wall to soften the soil in the hole wall; the second engine is turned on, driving the blade to rotate and cut the softened soil in the precast pile hole wall. The cut soil is piled up at the bottom of the precast pile hole; the first engine is turned on, driving the cleaning plate to rotate and clean the softened soil in the precast pile hole wall.

[0016] Preferably, in step (1), a support is provided to support the pumping section according to the actual environment outside the precast pile hole. More preferably, the height of the support is adjustable.

[0017] Preferably, in step (1), the pumping part is placed in the padding layer.

[0018] In step (2), the water outside the precast pile hole is not limited; it can be water inside the foundation pit or water from other external water sources.

[0019] Preferably, the length of the guide pipe is adjusted according to the actual height of the precast pile hole, so that the cleaning part can be located inside the precast pile hole.

[0020] Preferably, the linkage rod of the mud cleaning unit is telescopic, which allows the mud cleaning plate to press against the wall of the precast pile hole for easy cleaning.

[0021] Compared with the prior art, the automatic precast pile hole cleaning device of the present invention has a simple structure and is easy to use. It can automatically soften, cut and clean the soil on the precast pile hole wall, saving labor and costs, reducing costs, and has a good cleaning effect, making the precast pile hole wall clean and smooth. When concrete is poured, it can reduce the problem of reduced waterproof performance and connection stability caused by the pores in the rough hole wall. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural schematic diagram of the device for automatically cleaning precast pile holes in an embodiment of the present invention.

[0023] Figure 2 yes Figure 1 A schematic diagram of the pumping section.

[0024] Figure 3 yes Figure 1 A schematic diagram of the structure of the central cleaning hole section.

[0025] Figure 4 yes Figure 3 A schematic diagram of the structure of the medium-cleaning mud plate and the connecting rod.

[0026] Figure 5 Is using Figure 1 The diagram shows a device that automatically cleans precast pile holes.

[0027] Figure 1-5 The numbers in the diagram are as follows: 1-Pumping section; 2-Inspection port; 3-Start / Stop button; 4-Bracket; 5-Guide pipe; 6-Clean hole section; 7-Outlet pipe; 8-Second engine; 9-First engine; 10-Clean mud plate; 11-Blade; 12-Connecting rod; 13-First connecting bolt; 14-Second connecting bolt; 16-Water storage container; 17-Pump. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to the embodiments. It should be noted that the embodiments described below are intended to facilitate the understanding of the present invention. Non-essential improvements and adjustments made to the present invention by those skilled in the art based on the above description of the present invention are still within the protection scope of the present invention.

[0029] In this invention, the terms "including" and "comprising" should be interpreted as including rather than exclusive or exhaustive; that is, they mean "including but not limited to".

[0030] like Figure 1 As shown, the automatic cleaning device for precast pile holes includes a pumping section 1 and a hole cleaning section 6. Figure 2 As shown, the water pumping section 1 includes a water pump 17 and a water storage container 16, and the water pumped by the water pump 17 is stored in the water storage container 16.

[0031] The cleaning section 6 includes a guide pipe 5, a water outlet pipe 7, a mud cutting unit, and a mud cleaning unit.

[0032] The guide pipe 5 has an open end along its length, referred to as the open end, and a closed end, referred to as the closed end. The open end is connected to the water storage container 16, and several outlet pipes 7 are connected near the closed end.

[0033] like Figure 3 As shown, the mud-cutting unit includes a first engine 9 and several blades 11. When the first engine 9 is turned on, it drives the blades 11 to rotate. When the blades 11 come into contact with the mud, they can cut the mud.

[0034] The mud cleaning unit includes a second engine 8 and several mud cleaning plates 10. When the second engine 8 is turned on, it drives each mud cleaning plate 10 to rotate. When each mud cleaning plate 10 comes into contact with the mud, it can clean the mud.

[0035] The direction parallel to the length of the guide tube 5 is called the axial direction, the direction perpendicular to the axial direction is called the radial direction, and the axial direction from the open end to the closed end of the guide tube 5 is called the positive axial direction.

[0036] In some embodiments, the pumping section has two layers, with the pump 17 located in the upper layer and the water storage container 16 located in the lower layer. In some embodiments, such as... Figure 5 As shown, the pumping section is also equipped with an inspection window 2 for convenient repair of the water pump 17, and a start / stop button 3 for starting or stopping the water pump 17.

[0037] In some embodiments, a support 4 for supporting the pumping section is also provided.

[0038] In some embodiments, such as Figure 3 As shown, the water outlet pipes 7 are arranged radially.

[0039] In some embodiments, the water outlet pipe 7, the sludge cleaning unit, and the sludge cutting unit are arranged sequentially along the positive axis. Furthermore, in some embodiments, the sludge cleaning unit is connected to the closed end of the guide pipe, and the sludge cutting unit is connected to the sludge cleaning unit.

[0040] In some embodiments, the cleaning plates 10 are arranged radially.

[0041] In some embodiments, each mud-cleaning plate 10 is connected to the second engine 8 via a connecting rod 12. In some embodiments, each mud-cleaning plate 10 is connected to the second engine 8 via several connecting rods 12, and the connecting rods 12 are connected sequentially by connecting bolts. Figure 4 As shown, in some embodiments, the mud-cleaning plate 10 is connected to the second engine 8 via two sets of connecting rods, referred to as the first set of connecting rods and the second set of connecting rods. Each set of connecting rods consists of three connecting rods 12, referred to as the first connecting rod, the second connecting rod, and the third connecting rod. One end of the first connecting rod is connected to the second engine 8, and the other end is connected to one end of the second connecting rod via a first connecting bolt 13. The other end of the second connecting rod is connected to one end of the third connecting rod via a second connecting bolt 14. The other end of the third connecting rod is connected to the mud-cleaning plate 10. The other end of the third connecting rod in the first set of connecting rods is connected to the upper end of one side of the mud-cleaning plate 10, and the other end of the third connecting rod in the second set of connecting rods is connected to the lower end of one side of the mud-cleaning plate 10.

[0042] In some embodiments, at least one linkage 12 is telescopic, and the telescopic length of the linkage 12 is achieved by a spring telescopic device.

[0043] In some embodiments, each cleaning plate 10 and the connecting rod 12 are connected by welding.

[0044] When using this device to automatically clean precast pile holes, the following steps are included: (1) such as Figure 5 As shown ( Figure 5 For illustrative purposes only, the upper and lower parts of the diagram are only partial screenshots. The upper part is used to show the outside of the precast pile hole, and the lower part is used to show the inside of the precast pile hole. The pumping part is placed outside the precast pile hole, for example, in the cushion layer, while the cleaning part extends into the inside of the precast pile hole. (2) Turn on the water pump 17 to pump out the water outside the precast pile hole (e.g., the water in the foundation pit) and store it in the water storage container 16, and connect it to the diversion pipe 5; (3) The water in the guide pipe 5 is sprayed out through the outlet pipe 7 to the precast pile hole wall to soften the soil in the hole wall; the first engine 9 is turned on, driving the blade 11 to rotate and cut the softened soil in the precast pile hole wall. The cut soil is piled up at the bottom of the precast pile hole; the second engine 8 is turned on, driving the cleaning plate to rotate and clean the softened soil in the hole wall.

[0045] In some embodiments, in step (1), a support 4 is set up to support the pumping section according to the actual environment outside the precast pile hole. In some embodiments, the height of the support 4 is adjustable.

[0046] In some embodiments, the length of the guide pipe 5 is adjusted according to the actual height of the precast pile hole so that the cleaning part can be located inside the precast pile hole.

[0047] In some embodiments, the linkage 12 of the mud cleaning unit is telescopic, which allows the mud cleaning plate 10 to press against the precast pile hole wall for easy cleaning.

[0048] This automatic cleaning system for precast pile holes can automatically remove the soil inside the holes, saving labor and costs. It also has a good cleaning effect, making the walls of the precast pile holes clean and smooth, which greatly improves the waterproof performance and connection stability after the concrete is poured.

[0049] The above embodiments provide a detailed description of the technical solution of the present invention. It should be understood that the above descriptions are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, additions, or similar substitutions made within the scope of the principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for automatically cleaning precast pile holes, characterized in that: Includes the pumping section and the cleaning section; The water pumping section includes a water pump and a water storage container, and the water pumped out by the water pump is stored in the water storage container. The cleaning section includes a guide pipe, a water outlet pipe, a mud cutting unit, and a mud cleaning unit; The guide pipe is open at one end along its length, denoted as the open end, and closed at the other end, denoted as the closed end. The open end is connected to the water storage container, and several outlet pipes are connected near the closed end. The mud-cutting unit includes a first engine and several blades. When the first engine is turned on, it drives the blades to rotate. When the blades come into contact with the mud, they can cut the mud. The mud cleaning unit includes a second engine and several mud cleaning plates. When the second engine is turned on, it drives each mud cleaning plate to rotate. When each mud cleaning plate comes into contact with the mud, it can clean the mud.

2. The apparatus as claimed in claim 1, characterized in that: The water pumping section has two layers, with the water pump located on the upper layer and the water storage container located on the lower layer.

3. The apparatus as described in claim 1, characterized in that: A bracket is provided to support the pumping section.

4. The apparatus as claimed in claim 1, characterized in that: The water outlet pipes are arranged radially.

5. The apparatus as claimed in claim 1, characterized in that: Along the positive axis, the water outlet pipe, the sludge cleaning unit, and the sludge cutting unit are arranged in sequence.

6. The apparatus as claimed in claim 1, characterized in that: The cleaning plates are arranged radially.

7. The apparatus as claimed in claim 1, characterized in that: Each mud-cleaning plate is connected to the second engine via a connecting rod.

8. The apparatus as claimed in claim 7, characterized in that: Each mud-cleaning plate is connected to the second engine via several connecting rods, and these connecting rods are connected sequentially via connecting bolts; and / or, At least one linkage is telescopic, and the telescopic length of the linkage is achieved by a spring telescopic device.

9. The apparatus as claimed in claim 1, characterized in that: The length of the guide tube is adjustable.

10. A method for automatically cleaning precast pile holes using the apparatus described in any one of claims 1 to 9, characterized in that: Includes the following steps: (1) The pumping part is placed outside the precast pile hole, and the cleaning part is placed inside the precast pile hole; (2) Turn on the water pump to pump out the water outside the precast pile hole and store it in the water storage container, and connect it to the diversion pipe; (3) The water in the diversion pipe is sprayed out through the outlet pipe to the precast pile hole wall to soften the soil in the hole wall; the second engine is turned on, driving the blade to rotate and cut the softened soil in the precast pile hole wall. The cut soil is piled up at the bottom of the precast pile hole; the first engine is turned on, driving the cleaning plate to rotate and clean the softened soil in the precast pile hole wall.