Novel hole cleaning soil removal device

Abstract

This utility model relates to a novel hole cleaning and soil sampling device. To overcome the deficiencies of existing technologies, this novel hole cleaning and soil sampling device includes a vertical rod with a hole cleaning and soil sampling tool at its bottom. The tool consists of N propeller blades evenly distributed around the axis of the vertical rod. Each propeller blade includes a guide edge, a trailing edge, a blade root, and a blade tip. The guide edge of each propeller blade is lower than its trailing edge. Each propeller blade is fixed to the vertical rod via its blade root. The guide edge of each propeller blade is sharpened. The projections of each propeller blade and the vertical rod on the same horizontal plane are connected or partially overlap. The vertical rod has a break, and a vertical crank handle is located on one side of the break. The upper and lower ends of the vertical crank handle are connected to the two ends of the break in the vertical rod via connecting rods. Sleeves are fitted onto the upper end of the connecting rod on the vertical rod and onto the crank handle. N is a positive integer, and 2 ≤ N ≤ 5. This novel hole cleaning and soil sampling device is easy to rotate and labor-saving, making it suitable for use in cleaning short pile holes before concrete pouring.

Description

Technical Field

[0001] This utility model relates to a novel hole cleaning and soil sampling device. Background Technology

[0002] In civil engineering, whether it is pile foundation construction, freezing method construction, soil pressure testing and monitoring, or sponge city construction, it is inevitable to carry out hole drilling operations on the soil.

[0003] When installing solar panels on mountainous terrain, short pile holes need to be drilled on the slope. Vertical steel pipes are then installed inside these holes and secured with concrete to form cast-in-place micro-pore grouting short pile foundations. The resulting holes and short pile holes are prone to accumulating mud and debris, requiring timely cleaning for proper use. Traditional hole cleaning methods involve manual labor using tools such as shovels, spades, and ladle scoops, which is inefficient and costly in terms of labor.

[0004] Announcement CN213812965U, authorized on July 27, 2021, discloses a hole cleaning and soil sampling device, comprising a T-shaped handle, a force transmission rod, a connecting rod, a hole cleaning and soil sampling tool, and a detachable drill bit connected in sequence. The drill rod can be lengthened by connecting several force transmission rods. The connecting rod is welded to the hole cleaning and soil sampling tool, which is composed of an angled opening thin-walled cylinder and an annular cutting edge welded together. The connecting rod at the bottom of the hole cleaning and soil sampling tool has a threaded end for connecting the detachable drill bit. The detachable drill bit includes three types depending on the application scenario: a conical smooth drill bit, a drill bit with spiral blades, and a drill bit without a drill bit. When using this device for hole cleaning, the T-shaped handle is held and rotated forcefully, resulting in high resistance, slow speed, and inconvenience. Summary of the Invention

[0005] The technical problem to be solved by this utility model is how to overcome the above-mentioned defects of the prior art and provide a new type of hole cleaning and soil sampling device.

[0006] To solve the above-mentioned technical problems, this novel hole cleaning and soil sampling device includes a vertical rod with a hole cleaning and soil sampling tool at the bottom of the vertical rod. The hole cleaning and soil sampling tool is characterized by: the hole cleaning and soil sampling tool being composed of N propeller blades, which are evenly distributed around the axis of the vertical rod. Each propeller blade includes a guide edge, a trailing edge, a blade root, and a blade tip. The guide edge of each propeller blade is lower than its trailing edge. Each propeller blade is fixed to the vertical rod through its blade root. The guide edge of each propeller blade is arc-shaped and sharpened. The projections of each propeller blade and the vertical rod on the same horizontal plane are connected or partially overlap. The vertical rod has a break, and a vertical crank handle is provided on one side of the break. The upper and lower ends of the vertical crank handle are connected to the two ends of the break in the vertical rod through an upper connecting rod and a lower connecting rod, respectively. Sleeves are fitted on the vertical rod above the upper connecting rod and on the vertical crank handle, where N is a positive integer and 2≤N≤5. With this design, before cleaning the hole, the vertical rod and soil sampler of this novel hole-cleaning and soil-sampling device are inserted into the short pile hole to be cleaned. One hand holds the sleeve of the vertical handle, and the other hand holds the sleeve on the vertical rod. First, apply slight downward pressure to the vertical rod, causing its lower end to insert into the accumulated soil inside the short pile hole. Then, rotate the vertical handle clockwise, causing the soil sampler to drill into the accumulated soil inside the short pile hole. Once a certain depth is reached, the novel hole-cleaning and soil-sampling device, along with the accumulated soil on the propeller blades, is pulled out of the short pile hole. The required depth can be achieved in one cleaning operation; otherwise, the above operation is repeated until the required depth is reached in all short pile holes.

[0007] As an optimization, the top of the vertical rod is welded to the middle of a horizontal rod to form a T-shaped pressure handle. The lower end of the vertical rod has a conical tip, and each propeller blade tip also has an upward-facing guard. With this design, when pressing down or pulling out the vertical rod, it is easier and less strenuous to apply force by holding the T-shaped pressure handle.

[0008] This new type of hole cleaning and soil sampling device has a simple structure, is easy to rotate and saves effort, and is suitable for use in cleaning short pile holes before pouring concrete. Attached Figure Description

[0009] The following description, in conjunction with the accompanying drawings, further illustrates this novel hole-cleaning and soil-extraction device: Figure 1 This is a three-dimensional structural diagram of the novel hole cleaning and soil sampling device; Figure 2 yes Figure 1 A bottom view schematic diagram of the novel hole cleaning and soil sampling device shown. Figure 3 yes Figure 1 A three-dimensional structural diagram of the propeller blade and a portion of the vertical shaft.

[0010] In the diagram: 1 is the vertical rod, 2 is the propeller blade, 21 is the guide edge, 22 is the trailing edge, 23 is the blade root, 24 is the blade tip, 25 is the stop edge, 3 is the vertical crank, 4 is the upper connecting rod, 5 is the lower connecting rod, 6 is the sleeve, 7 is the crossbar, and 8 is the cone tip. Detailed Implementation

[0011] Implementation method one: such as Figure 1-3 As shown, this novel hole-cleaning and soil-collecting device includes a vertical rod 1, with a hole-cleaning and soil-collecting device at its bottom. The device is characterized by N propeller blades 2 evenly distributed around the axis of the vertical rod. Each propeller blade 2 includes a guide edge 21, a trailing edge 22, a blade root 23, and a blade tip 24. The guide edge 21 of each propeller blade 2 is lower than its trailing edge 22. Each propeller blade 2 is fixed to the vertical rod 1 via its blade root 23. The guide edge 21 of each propeller blade 2 is arc-shaped and sharpened. The vertical rod 1 has a break, and a vertical crank handle 3 is provided on one side of the break. The upper and lower ends of the vertical crank handle are connected to the two ends of the break in the vertical rod 1 via an upper connecting rod 4 and a lower connecting rod 5, respectively. Sleeves 6 are fitted onto the vertical rod 1 above the upper connecting rod 4 and onto the vertical crank handle 3, respectively. N is a positive integer, and 2 ≤ N ≤ 5. The propeller blades 2 form a structure similar to a ship's propeller. Figure 1-3 In the novel hole cleaning and soil sampling device shown, N equals 3.

[0012] The top of the vertical rod 1 is welded to the middle of a horizontal rod 7 to form a T-shaped pressure handle. The lower end of the vertical rod is provided with a cone tip 8, and each propeller blade 2 has an upward-facing guard edge 25 on its blade tip 24.

[0013] like Figure 2 As shown, the projections of each propeller blade 2 and the vertical rod 1 on the same horizontal plane are connected or partially overlapped (that is, the projections of the guide edge 21 of each propeller blade 2 on the horizontal plane are connected or partially overlapped with the projections of the trailing edge 22 of the adjacent propeller blade 2 on the same horizontal plane, the projections of the blade tips 24 of each propeller blade 2 on the same horizontal plane form a circle, and the projections of each propeller blade 2 and the vertical rod 1 on the horizontal plane can completely cover the cross-section of the rectangular pile hole to be cleaned).

Claims

1. A novel hole cleaning and soil sampling device, comprising a vertical rod, wherein a hole cleaning and soil sampling tool is provided at the bottom of the vertical rod, characterized in that: The soil sampling device consists of N propeller blades, which are evenly distributed around the axis of the vertical rod. Each propeller blade includes a guide edge, a trailing edge, a blade root, and a blade tip. The guide edge of each propeller blade is lower than its trailing edge. Each propeller blade is fixed to the vertical rod through its blade root. The guide edge of each propeller blade is arc-shaped and sharpened. The projections of each propeller blade and the vertical rod on the same horizontal plane are connected or partially overlap. The vertical rod has a break, and a vertical rocker is provided on one side of the break. The upper and lower ends of the vertical rocker are connected to the two ends of the break of the vertical rod through an upper connecting rod and a lower connecting rod, respectively. Sleeves are fitted on the vertical rod above the upper connecting rod and on the vertical rocker, respectively. N is a positive integer, and 2≤N≤5.

2. The novel hole cleaning and soil sampling device according to claim 1, characterized in that: The top of the vertical rod is welded to the middle of a horizontal rod to form a T-shaped pressure handle. The lower end of the vertical rod is provided with a cone tip, and each propeller blade tip is also provided with an upward-facing guard edge.

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