1. A scalable integration stake machine equipment that has crowded soil function of pouring includes: the device comprises a rotary drilling frame (1), a power head (2), a telescopic perfusion drill rod (3), a spiral squeezing and expanding drill bit (4) and a ground pump (5). The rotary excavating machine frame (1) comprises a steel wire rope (11), a hoisting device (12) and a lifting tower frame (13), the lifting tower frame (13) is sleeved with a power head (2), a telescopic perfusion drill rod (3) penetrates through the power head (2) to be installed, the top of the telescopic perfusion drill rod (3) is connected with the steel wire rope (11), the side face of the top is connected with a ground pump (5) through a pipeline (51), and the bottom of the rotary excavating machine frame is connected with a hexagonal joint in a spiral squeezing and expanding drill bit (4).

2. The retractable integrated pile machine equipment with the soil extrusion and pouring functions as claimed in claim 1, wherein: the telescopic perfusion drill rod (3) is internally provided with a hollow channel (31), and the hollow channel (31) is respectively communicated with a pipeline (51) connected with a ground pump (5) and the spiral squeezing and expanding drill bit (4).

3. The retractable integrated pile machine equipment with the soil extrusion and pouring functions as claimed in claim 1, wherein: the telescopic filling drill rod (3) has a free telescopic function and can realize construction of longer piles under a lower-height drill tower.

4. The retractable integrated pile machine equipment with the soil extrusion and pouring functions as claimed in claim 1, wherein: be equipped with in crowded drill bit (4) of spiral and expand filling channel (41), the bottom of crowded drill bit (4) of spiral is equipped with filling hole (42), and filling channel (41) communicate with cavity passageway (31) and filling hole (42) respectively, are equipped with check valve (43) in the filling hole.

5. The retractable integrated pile machine equipment with the soil extrusion and pouring functions as claimed in claim 1, wherein: the top of the spiral squeezing and expanding drill bit (4) is provided with a back pressure thread (45) opposite to the direction of the bottom thread (44).

Background

The existing spiral soil-squeezing pile equipment is a complete soil-squeezing type pile, the hole forming and filling pile forming can be integrally constructed, soil discharging and slurry pollution are avoided, but the hole forming depth is controlled by the height of a tower and the length of a drilling tool, construction cannot be carried out when the depth exceeds a certain depth, and holes are easy to collapse. The rotary excavating pile equipment is used for rotary excavating, drilling and soil taking, a drill rod of the rotary excavating pile equipment is telescopic, the installation of a steel reinforcement cage after pore forming and the pouring of concrete cannot be completed automatically, other hoisting machinery must be matched, waste soil generated in the hole excavating process must be matched with other soil transporting machinery in an excavating and transporting mode, the construction progress is slow, and the equipment cost is high.

In order to solve the respective defect problems of the existing spiral soil extrusion equipment and rotary excavating equipment, the applicant improves and upgrades the existing equipment, integrates the advantages of the two kinds of equipment, provides an integrated equipment combining a telescopic rotary drilling tool, a soil body compaction effect and a concrete center pressure irrigation technology, and solves the problems of easy hole collapse, large dust raising, waste soil generation, slow construction progress, difficult construction exceeding a certain depth pile length and the like in the pile foundation construction process.

Disclosure of Invention

The technical problem to be solved by the invention is to provide an integrated device which combines a telescopic rotary drilling tool, a soil body compaction effect and a concrete center pressure irrigation technology, and solve the problems of easy hole collapse, large dust emission, waste soil generation, slow construction progress, difficult construction beyond a certain depth, and the like in the pile foundation construction process.

In order to solve the technical problems, the invention adopts the following scheme:

a scalable integration stake machine equipment that has crowded soil function of pouring includes: the rotary drilling machine comprises a rotary drilling frame, a power head, a telescopic perfusion drill rod, a spiral squeezing and expanding drill bit and a ground pump, wherein the rotary drilling frame comprises a steel wire rope, a hoisting device and a lifting tower frame, the lifting tower frame is sleeved with the power head, the telescopic perfusion drill rod penetrates through the power head to be installed, the top of the telescopic perfusion drill rod is connected with the steel wire rope, the side surface of the top of the telescopic perfusion drill rod is connected with the ground pump through a pipeline, and the bottom of the telescopic perfusion drill rod is connected with a hexagonal joint in the spiral squeezing and expanding drill bit.

Furthermore, a hollow channel is arranged inside the telescopic perfusion drill rod and is respectively communicated with a pipeline connected with a ground pump and the spiral squeezing and expanding drill bit.

Furthermore, a filling channel is arranged in the spiral extruding and expanding drill bit, a filling hole is formed in the bottom of the spiral extruding and expanding drill bit, the filling channel is communicated with the hollow channel and the filling hole respectively, and a check valve is arranged in the filling hole.

Furthermore, the top of the spiral squeezing and expanding drill bit is provided with a back pressure thread with the direction opposite to that of the thread at the bottom of the spiral squeezing and expanding drill bit.

The working principle is as follows:

the power head provides torque and axial pressure to drive the telescopic filling drill rod and the spiral squeezing and expanding drill bit to drill downwards, and the drill bit extrudes all soil in the pile hole into soil around the pile in the drilling process. After the pile is drilled to the designed depth, the drilling tool is lifted, the ground pump is started to continuously press and fill the filler into the extruded and expanded pile hole through the hollow channel of the drill rod and the drill bit filling channel, the filler pushes open a drill bit valve under the action of pressure and gravity to fill the pile hole, and finally the completely extruded and filled pile is formed. The telescopic drill rod can complete pile hole construction of different pile lengths according to engineering requirements, and the construction pile length is not limited by the height of the tower.

The invention has the advantages that:

(1) the invention can squeeze and expand to form the pile hole and simultaneously continuously carry out pressure filling on the interior of the pile hole to form the filling pile, thereby having two purposes, reducing other matched construction equipment and lowering the manufacturing cost of the equipment. Meanwhile, soil bodies among piles are compacted without the need of a retaining wall of a soil compaction pile, no waste soil is generated, the method is environment-friendly and pollution-free, the construction speed is high, the drill rod can freely stretch and retract, and long pile construction can be realized under a drilling tower with a lower height

(2) The invention adopts the freely telescopic filling drill rod, and can realize the construction of longer piles under the drilling tower with lower height.

(3) The spiral squeezing and expanding drill bit is provided with the threads with opposite directions at two ends, so that soil bodies can be prevented from being discharged upwards out of the ground surface in the squeezing and expanding process, and the full soil squeezing operation is realized.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural view of the thread reaming bit.

The meanings of the labels in the figure are as follows:

1-a rotary digging frame; 2, a power head; 3-a telescopic perfusion drill rod; 4-a screw thread extruding and expanding drill bit; 5-a ground pump; 11-a steel wire rope; 12-a hoisting device; 13-a lifting tower; 31-a hollow channel; 41-perfusion channel; 42-an infusion port; 43-check valve; 44-bottom thread; 45-back pressure thread; 51-the conduit.

Detailed Description

A scalable integration stake machine equipment that has crowded soil function of pouring includes: the rotary drilling machine comprises a rotary drilling frame 1, a power head 2, a telescopic perfusion drill rod 3, a spiral squeezing and expanding drill bit 4 and a ground pump 5, wherein the rotary drilling frame 1 comprises a steel wire rope 11, a heavy device 12 and a lifting tower 13, the lifting tower 13 is sleeved with the power head 2, the telescopic perfusion drill rod 3 penetrates through the power head 2 to be installed, the top of the telescopic perfusion drill rod 3 is connected with the steel wire rope 11, the side surface of the top of the telescopic perfusion drill rod is connected with the ground pump 5 through a pipeline 51, and the bottom of the telescopic perfusion drill rod is connected with a hexagonal joint in the spiral squeezing and expanding drill bit 4.

Preferably, the inside of the retractable perfusion drill rod 3 is provided with a hollow channel 31, and the hollow channel 31 is respectively communicated with the pipeline 51 of the connecting pump 5 and the helical squeezing bit 4.

Preferably, a filling channel 41 is arranged in the screw extrusion-expansion drill 4, a filling hole 42 is arranged at the bottom of the screw extrusion-expansion drill, the filling channel 41 is respectively communicated with the hollow channel 31 and the filling hole 42, and the filling hole 42 is provided with a check valve 43.

Preferably, the top of the helical reamer head 4 is provided with counter-pressure threads 45 in a direction opposite to the bottom threads 44.

Finally, it should be noted that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to examples, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.