A tool for manually cleaning the soil in the core of a pipe pile

Abstract

The utility model relates to a kind of artificial cleaning pipe pile core soil tools, including soil removal unit and rotary rod unit, soil removal unit is made of two pieces of semicircular blade, rotary rod unit includes center drill rod and connecting rod, connecting rod is fixed on center drill rod by screw thread connection mode, two pieces of semicircular blade are fixed on the outer circumferential wall of center drill rod in separated state, and it is misaligned arrangement along the axial direction of center drill rod;The back of two pieces of semicircular blade is equipped with reinforcing rib, the front edge of two pieces of semicircular blade is equipped with the baffle for preventing soil body from sliding in lifting process, the circumferential wall of two pieces of semicircular blade is equipped with the cleaning unit that is attached with pipe pile inner wall;The utility model has the advantages of good strength, it is easy to clean inner wall and prevent soil body from sliding in lifting process.

Description

Technical Field

[0001] This utility model belongs to the technical field of pipe pile core cleaning tools, and in particular relates to a tool for manually cleaning the soil in the core of pipe piles. Background Technology

[0002] Prestressed concrete pipe piles are widely used in foundation construction of building engineering. After the prestressed concrete pipe piles are installed, a large amount of soil accumulates inside the piles. When using the pipe piles for construction, it is necessary to clean the soil to a certain depth (6-8m) inside the piles. In the existing technology, the soil inside the pipe piles is cleaned using soil cleaning tools with spiral blades or drilling rigs with spiral blades. However, in foundations of silty / sandy soil and silty clay mixed with silt / silt, the following problems arise: 1. Due to the large force of the spiral blades during the soil cleaning process, the spiral blades often bend, resulting in poor soil cleaning effect; 2. The rotation diameter of the spiral blades is smaller than the inner diameter of the pipe pile, which makes it difficult to clean the inner wall of the pipe pile; 3. Due to the state of the soil being cleaned, the soil can easily slide back into the inner pipe of the pipe pile during the cleaning and lifting process, which greatly reduces the cleaning efficiency. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a manual tool for cleaning the core soil of pipe piles that has good strength, is easy to clean the inner wall, and prevents the soil from slipping during the lifting process.

[0004] The purpose of this utility model is achieved through the following technical solution: This manual tool for cleaning the core soil of pipe piles includes a soil-scooping unit and a rotating rod unit. The soil-scooping unit consists of two semi-circular blades. The rotating rod unit includes a central drill rod and a connecting rod. The connecting rod is fixed to the central drill rod by a threaded connection. The two semi-circular blades are fixed separately to the outer circumferential wall of the central drill rod and are staggered along the axial direction of the central drill rod. The back of each of the two semi-circular blades is provided with reinforcing ribs. The front edge of each of the two semi-circular blades is provided with baffles to prevent soil from slipping during the lifting process. The circumferential wall of each of the two semi-circular blades is provided with a cleaning unit that fits against the inner wall of the pipe pile.

[0005] The beneficial effects of this utility model are as follows: Compared with the prior art, by setting reinforcing ribs on the back of the semi-circular blade, the blade will not bend during rotation; and by setting baffles on the front edge of the semi-circular blade, the soil can be effectively prevented from sliding back into the inner tube of the pipe pile during the cleaning and lifting process; at the same time, by setting cleaning units on the circumferential wall of the semi-circular blade, the inner wall of the pipe pile can be thoroughly cleaned.

[0006] Preferably, one end of the central drill rod is fixed to a positioning cone rod by welding, and the other end of the central drill rod is provided with external threads; the connecting rod is a sleeve, one end of which is provided with internal threads and the other end with external threads. The connecting rod and the central drill rod are fixed together by threaded connection, and the connecting rods are fixed together by threaded connection. A through hole is provided at the threaded connection, running radially through the connecting rod, and a pin is inserted through the through hole. By setting the positioning cone rod, the core soil tool for pipe piles can be used to position the center of the pipe pile during the cleaning process, making the cleaning more convenient. The threaded connection between the central drill rod and the connecting rod makes disassembly and assembly more convenient. At the same time, the pin fixation between the two ensures that the central drill rod and the connecting rod, as well as the connecting rods, will not loosen during the rotation of the core soil tool for pipe piles, resulting in better stability.

[0007] Preferably, the reinforcing ribs are arranged from the center to the side of the semicircular blade and are distributed in a radiating pattern. Adjacent reinforcing ribs are evenly spaced along the arc of the semicircular blade, and reinforcing ribs are provided on the back of both ends of the two semicircular blades. Through the above structure, the force on the semicircular blades is more uniform. At the same time, the back of both ends of the semicircular blades is provided with reinforcing ribs because the two ends of the semicircular blades are subjected to the greatest force during the cleaning process. Therefore, it is necessary to provide reinforcing ribs on the back to increase the strength.

[0008] Preferably, the reinforcing ribs on the back of both ends of the semicircular blade are wedge-shaped, and the inclined surfaces on the reinforcing ribs are arranged along the rotation direction of the semicircular blade. The remaining reinforcing ribs are steel bars. With the above structure, the resistance between the blade and the soil will not increase due to the reinforcing ribs during the rotation of the semicircular blade.

[0009] Preferably, the baffle is provided in a plurality of pieces and is distributed at equal intervals along the front edge of the semi-circular blade, and the baffle is provided on both ends of the semi-circular blade; the baffle is provided on both ends of the semi-circular blade so that the soil can be smoothly entered onto the front of the blade from the beginning of the soil clearing process, and will not slip off.

[0010] Preferably, several cleaning units are provided and arranged along the circumferential wall of the semi-circular blades, and are located sequentially in the gaps between adjacent baffles. This arrangement not only facilitates the fixing of the cleaning units and the blades, but also allows some of the soil in the gaps between adjacent baffles to slide onto the cleaning units, thus preventing soil from sliding off during the cleaning process and lifting process as much as possible.

[0011] Preferably, the cleaning unit includes several steel wire ropes, which are fixed to the semi-circular blades by welding, and the steel wire ropes have a radiating structure facing the inner wall of the pipe pile. With the above structure, the contact area between the cleaning unit and the inner wall of the pipe pile is larger, which greatly improves the cleaning of the soil attached to the inner wall of the pipe pile. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the tool for manually cleaning the core soil of pipe piles according to this utility model.

[0013] Figure 2 This is a schematic diagram of the soil-excavating unit structure of this utility model.

[0014] The labels in the attached diagram are as follows: 1. Excavation unit; 2. Rotating rod unit; 3. Reinforcing rib; 4. Baffle plate; 5. Cleaning unit; 6. Pipe pile; 7. Positioning cone rod; 11. Semi-circular blade; 21. Center drill rod; 22. Connecting rod; 23. Through hole; 24. Pin; 31. Inclined surface; 51. Steel wire rope. Detailed Implementation

[0015] The present invention will now be described in detail with reference to the accompanying drawings: as shown in the drawings Figure 1 , 2 As shown, this utility model includes a soil-removing unit 1 and a rotating rod unit 2. The soil-removing unit 1 consists of two semi-circular blades 11. The rotating rod unit 2 includes a central drill rod 21 and a connecting rod 22. The connecting rod 22 is fixed to the central drill rod 21 by a threaded connection. The central drill rod 21 is a solid iron rod with a length of 300mm and a diameter of 20mm. The two semi-circular blades 11 are fixed separately on the outer circumferential wall of the central drill rod 21 and are staggered along the axial direction of the central drill rod 21. The angle between the two semi-circular blades 11 is 25° to 35°. The back of each of the two semi-circular blades 11 is provided with reinforcing ribs 3. The front edge of each of the two semi-circular blades 11 is provided with baffles 4 to prevent soil from slipping during the lifting process. The circumferential wall of each of the two semi-circular blades 11 is provided with cleaning units 5 that fit against the inner wall of the pipe pile 6. This solves the drawback of large cleaning equipment being unable to approach the foundation or enter the pit for cleaning. Moreover, this tool is easy to carry, and the cleaning depth is easy to control and measure. It is inexpensive, efficient, effective, pollution-free, noise-free, has strong cross-operation capabilities, does not affect the construction period, has low construction costs, and is safe and controllable.

[0016] One end of the central drill rod 21 is fixed with a positioning cone rod 7 by welding. The positioning cone rod 7 is 100mm long. The other end of the central drill rod 21 is provided with external threads. The connecting rod 22 is a sleeve with internal threads at one end and external threads at the other end. The connecting rod 22 is fixed to the central drill rod 21 by threaded connection. The connecting rods 22 are fixed to each other by threaded connection. A through hole 23 is opened at the threaded connection and runs radially through the connecting rod 22. A pin 24 is inserted through the through hole 23. The length of each section of the connecting rod 22 is 1m. The number of connecting rods 22 is determined according to the depth to which the core soil needs to be cleaned. A handle is welded horizontally to the top of the connecting rod at the end.

[0017] The reinforcing ribs 3 are arranged from the center to the side of the semi-circular blade 11 and are distributed in a radiating manner. The adjacent reinforcing ribs 3 are evenly spaced along the arc of the semi-circular blade 11, and the back ends of both semi-circular blades 11 are provided with reinforcing ribs 3. The reinforcing ribs 3 on the back ends of the semi-circular blades 11 are wedge-shaped, and the inclined surface 31 on the reinforcing ribs 3 is arranged along the rotation direction of the semi-circular blade 11. The remaining reinforcing ribs 3 are steel bars.

[0018] The baffle 4 is provided in several pieces and is distributed at equal intervals along the front edge of the semicircular blade 11, and baffle 4 is provided on both ends of the semicircular blade 11; the cleaning unit 5 is provided in several pieces and is arranged along the circumferential wall of the semicircular blade 11, and is located in the gap between adjacent baffle 4; the cleaning unit 5 includes several steel wire ropes 51, which are fixed to the semicircular blade 11 by welding, and the steel wire ropes 51 have a radiating structure facing the inner wall of the pipe pile 6.

[0019] The working principle of this utility model is as follows: First, determine the number of connecting rods 22 according to the required depth of soil core cleaning, and connect and fix them; then, the entire tool is positioned inside the pipe pile 6 by the positioning cone rod 7, and manually rotated clockwise according to the lowest point of the two semi-circular blades 11. Every 20-40cm of rotation, the entire tool is extracted from the pipe pile 6; finally, the above method is used until the required depth is reached, which is generally 6-8mm.

[0020] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A tool for cleaning the soil of a pipe pile core, comprising a soil removal unit (1) and a rotating shaft unit (2), characterized in that: The soil digging unit (1) is composed of two half-circular blades (11), the rotary rod unit (2) includes a center drill rod (21) and a connecting rod (22), the connecting rod (22) is fixed on the center drill rod (21) by thread connection, two half-circular blades (11) are fixed on the outer circumferential wall of the center drill rod (21) in a separated state and are arranged in a staggered manner along the axial direction of the center drill rod (21); the back surface of the two half-circular blades (11) is provided with a reinforcing rib (3), the front edge of the two half-circular blades (11) is provided with a baffle (4) for preventing the soil from sliding during lifting, and the circumferential wall of the two half-circular blades (11) is provided with a cleaning unit (5) attached to the inner wall of the pipe pile (6).

2. The tool for artificial cleaning of the soil core of a pipe pile according to claim 1, characterized in that: One end of the center drill rod (21) is fixed with a positioning cone rod (7) by welding, and the other end of the center drill rod (21) is provided with an external thread; the connecting rod (22) is a sleeve pipe, one end of which is provided with an internal thread, and the other end is provided with an external thread, the connecting rod (22) and the center drill rod (21) are fixed by thread connection, the connecting rods (22) are fixed by thread connection, and a through hole (23) penetrating along the radial direction of the connecting rod (22) is formed at the thread connection, and a pin (24) is inserted through the through hole (23).

3. The tool of claim 1, wherein: The reinforcing rib (3) is arranged from the center to the side edge of the half-circular blade (11) and is distributed in a diverging manner, the adjacent reinforcing ribs (3) are distributed at equal intervals along the arc of the half-circular blade (11), and the back surface of both ends of the two half-circular blades (11) is provided with a reinforcing rib (3).

4. The tool of claim 3, wherein: The reinforcing rib (3) on the back surface of both ends of the half-circular blade (11) is wedge-shaped, the inclined surface (31) on the reinforcing rib (3) is arranged along the rotation direction of the half-circular blade (11), and the remaining reinforcing ribs (3) are steel bars.

5. The artificial de-coring tool of claim 1, wherein: The baffle (4) is provided with a plurality of pieces and is distributed at equal intervals along the front edge of the half-circular blade (11), and the baffle (4) is arranged on the edge of both ends of the half-circular blade (11).

6. The artificial de-coring tool of claim 5, wherein: The cleaning unit (5) is provided with a plurality of pieces and is arranged on the circumferential wall of the half-circular blade (11), and is sequentially arranged on the gap between adjacent baffles (4).

7. The artificial de-coring tool of claim 6, wherein: The cleaning unit (5) includes a plurality of steel wire ropes (51), the steel wire ropes (51) are fixed on the half-circular blade (11) by welding, and the steel wire ropes (51) are in a diverging structure towards the inner wall side of the pipe pile (6).

Images