A cement mixing pile construction device

Abstract

The utility model relates to the field of mixing piles, and specifically to a cement mixing pile construction device, comprising a pouring pipe, a rotating outer ring, turbine blades, a connecting tube, spiral blades, a pressure sensor, a rotary drill bit and a steel structure drill bit, wherein the rotating outer ring is installed on the outer side wall of the lower end of the pouring pipe, a plurality of turbine blades with the same specifications are installed on the outer side wall of the rotating outer ring, the lower side of the pouring pipe is connected and installed with a connecting tube, the outer side wall of the connecting tube is provided with a plurality of spiral blades with the same specifications, the lower side of the connecting tube is connected and installed with a pressure sensor, the lower side of the pressure sensor is connected and installed with a rotary drill bit, the outer side wall of the rotary drill bit is installed with a plurality of steel structure drill bits with the same specifications, an external high-pressure mud pump provides cement slurry, which is poured into a pouring bin of the pouring pipe, the cement slurry is poured into a storage bin, and is uniformly sprayed out through a plurality of cement slurry spray holes, the rotary drill bit rotates downward to drill a hole, and the spiral blades uniformly stir the cement slurry at the same time, and after the relative cement slurry is poured in, the turbine blades stir and compact it.

Description

Technical Field

[0001] The utility model relates to the field of mixing piles, in particular to a cement mixing pile construction device. Background Art

[0002] Cement-soil mixing pile is a method used to reinforce saturated soft clay foundation. It uses cement as a curing agent and a special mixing machine to forcefully mix the soft soil and curing agent deep in the foundation. It uses a series of physical and chemical reactions between the curing agent and the soft soil to harden the soft soil into a high-quality foundation with integrity, water stability and a certain strength. The reinforcement depth is usually more than 5m, the dry reinforcement depth does not exceed 15m, and the wet reinforcement depth does not exceed 20m. The cement slurry pressed into the soft soil is forcibly mixed with the surrounding soft soil by a rotating mixing blade to form a mud reinforcement body. A Chinese patent discloses a cement mixing pile construction device (authorization announcement number CN 215629908 U). The patented technology can change the single or double slurry outlet between the upper and lower mixing rods of the traditional cement mixing pile into four nozzles arranged in a staggered and symmetrical manner, increase the number of nozzles and use a high-pressure mud pump to increase the cement slurry mixing flow rate, increase the drill rod lifting speed, and effectively improve the construction efficiency. The high-pressure mud pump sprays high-pressure cement slurry to the soil layer through multiple nozzles to cut the soil layer. At the same time, the mixing rod and the mixing blade work together to mix the soil in the borehole, effectively improving the quality of the mixing pile. However, the designed mixing blade and drill bit are too simple, which affects the work efficiency. Therefore, a person skilled in the art provides a cement mixing pile construction device to solve the problems raised in the above background technology. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a cement mixing pile construction device, including a grouting pipe, a rotating outer ring, turbine blades, a connecting tube, spiral blades, a pressure sensor, a rotating drill bit and a steel structure drill bit. The rotating outer ring is installed on the outer side wall of the lower end of the grouting pipe, and a plurality of turbine blades of the same specifications are installed on the outer side wall of the rotating outer ring. The lower side of the grouting pipe is connected and installed with a connecting tube, and the outer side wall of the connecting tube is provided with a plurality of spiral blades of the same specifications. The lower side of the connecting tube is connected and installed with a pressure sensor, and the lower side of the pressure sensor is connected and installed with a rotating drill bit.

[0004] Preferably: a plurality of steel drill bits of the same specification are installed on the outer side wall of the rotary drill bit;

[0005] Preferably: a filling chamber is provided inside the filling pipe, and the upper end of the filling chamber is tightly connected and installed with a high-pressure mud pump for cement slurry transportation;

[0006] Preferably: the lower side of the perfusion pipe is connected to a connecting tube, the inner side of the connecting tube is provided with a storage bin, the diameter of the storage bin is the same as the diameter of the perfusion bin, and the two bins are tightly connected and installed;

[0007] Preferably: the wall of the connecting cylinder is provided with a plurality of cement slurry spray holes of the same size, and the plurality of cement slurry spray holes can improve the cement slurry conveying efficiency and shorten the mechanical operation time;

[0008] Preferably, a fixed ring groove is provided on the inner side of the rotating outer ring, and the fixed ring groove is tightly mounted on the outer side wall of the lower end of the perfusion tube to ensure that the rotating outer ring will not fall off when rotating.

[0009] Technical effects and advantages of the utility model:

[0010] 1. The outer side wall of the connecting tube is provided with multiple spiral blades of the same specifications, and the wall of the connecting tube is provided with multiple cement slurry spray holes of the same size. The cement slurry spray holes are installed between the spiral blades at equal distances to improve the cement slurry transportation efficiency, shorten the time for the spiral blades to stir the cement slurry, shorten the mechanical operation time, and improve work efficiency;

[0011] 2. The outer side wall of the connecting tube is provided with multiple spiral blades of the same specifications, a rotating outer ring is installed on the outer side wall of the lower end of the pouring pipe, and multiple turbine blades of the same specifications are installed on the outer side wall of the rotating outer ring. The installation of spiral blades and turbine blades can stir the cement slurry more evenly, make the cement slurry finer, and improve the quality of the pouring structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of a cement mixing pile construction device provided in an embodiment of the present application;

[0013] Figure 2 This is a schematic diagram of the structure of a cement mixing pile construction device provided in an embodiment of the present application from a bottom view;

[0014] Figure 3 It is a schematic cross-sectional structure diagram of a cement mixing pile construction device provided in an embodiment of the present application;

[0015] Figure 4 It is a schematic diagram of a partial cross-sectional structure of a cement mixing pile construction device provided in an embodiment of the present application;

[0016] Figure 5 It is a schematic diagram of a local explosion structure in a cement mixing pile construction device provided in an embodiment of the present application.

[0017] In the figure: 1. injection pipe; 2. rotating outer ring; 3. turbine blade; 4. connecting tube; 5. spiral blade; 6. pressure sensor; 7. rotating drill bit; 8. steel structure drill bit; 101. injection bin; 201. fixed ring groove; 401. storage bin; 402. cement slurry spray hole. DETAILED DESCRIPTION

[0018] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific purposes.

[0019] Example

[0020] See also Figure 1 to Figure 5 In this embodiment, a cement mixing pile construction device is provided, including a grouting pipe 1, a rotating outer ring 2, turbine blades 3, a connecting tube 4, a spiral blade 5, a pressure sensor 6, a rotating drill bit 7 and a steel structure drill piece 8. The rotating outer ring 2 is installed on the outer side wall of the lower end of the grouting pipe 1, and a plurality of turbine blades 3 of the same specifications are installed on the outer side wall of the rotating outer ring 2. The lower side of the grouting pipe 1 is connected to and installed with a connecting tube 4, and a plurality of spiral blades 5 of the same specifications are arranged on the outer side wall of the connecting tube 4. The lower side of the connecting tube 4 is connected to and installed with a pressure sensor 6, and the lower side of the pressure sensor 6 is connected to and installed with a rotating drill bit 7, and a plurality of steel structure drill pieces 8 of the same specifications are installed on the outer side wall of the rotating drill bit 7;

[0021] Specifically, a fixed ring groove 201 is provided on the inner side of the rotating outer ring 2, and the fixed ring groove 201 is tightly mounted on the outer side wall of the lower end of the perfusion pipe 1 to ensure that the rotating outer ring 2 will not fall off when rotating. A perfusion bin 101 is provided on the inner side of the perfusion pipe 1, and the upper end of the perfusion bin 101 is tightly connected and mounted with a high-pressure mud pump;

[0022] A connecting tube 4 is connected and installed at the lower side of the perfusion pipe 1, and a storage bin 401 is provided on the inner side of the connecting tube 4. The bin diameter of the storage bin 401 is the same as that of the perfusion bin 101, and the two bins are tightly connected and installed. A plurality of cement slurry spray holes 402 of the same size are provided on the wall of the connecting tube 4. The plurality of cement slurry spray holes 402 can improve the cement slurry transportation efficiency.

[0023] The working principle of the utility model is:

[0024] When using a cement mixing pile construction device, an external high-pressure mud pump provides cement slurry, which is poured into the filling bin 101 of the filling pipe 1. Since the filling bin 101 is tightly connected to the storage bin 401, the cement slurry is poured into the storage bin 401 and evenly sprayed out through multiple cement slurry spray holes 402. When the machine is operating, the rotary drill bit 7 rotates downward to drill a hole. By installing multiple steel structure drill bits 8 of the same specification, the drilling efficiency can be improved and the work progress can be accelerated. At the same time, the spiral blades 5 evenly stir the cement slurry. After the relative cement slurry is poured in, the turbine blades 3 stir and compact it.

[0025] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. Structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the field unless otherwise specified and limited.

Claims

1. A cement mixing pile construction device, characterized in that: The invention comprises an injection pipe (1), a rotating outer ring (2), turbine blades (3), a connecting tube (4), spiral blades (5), a pressure sensor (6) and a rotating drill bit (7); the rotating outer ring (2) is installed on the outer side wall of the lower end of the injection pipe (1); a plurality of turbine blades (3) of the same specification are installed on the outer side wall of the rotating outer ring (2); the lower side of the injection pipe (1) is connected to and installed with a connecting tube (4); the outer side wall of the connecting tube (4) is provided with a plurality of spiral blades (5) of the same specification; the lower side of the connecting tube (4) is connected to and installed with a pressure sensor (6); and the lower side of the pressure sensor (6) is connected to and installed with a rotating drill bit (7).

2. A cement mixing pile construction device according to claim 1, characterized in that: A fixed annular groove (201) is provided on the inner side of the rotating outer ring (2), and the fixed annular groove (201) is tightly mounted on the outer side wall of the lower end of the perfusion pipe (1).

3. A cement mixing pile construction device according to claim 2, characterized in that: A filling chamber (101) is provided inside the filling pipe (1), and the upper end of the filling chamber (101) is tightly connected and installed with a high-pressure mud pump.

4. A cement mixing pile construction device according to claim 3, characterized in that: The lower side of the perfusion pipe (1) is connected to a connecting tube (4), and a storage bin (401) is provided inside the connecting tube (4). The diameter of the storage bin (401) is the same as that of the perfusion bin (101).

5. A cement mixing pile construction device according to claim 3, characterized in that: The wall of the connecting tube (4) is provided with a plurality of cement slurry spray holes (402) of the same size.

6. A cement mixing pile construction device according to claim 1, characterized in that: A plurality of steel structure drill pieces (8) having the same specifications are installed on the outer side wall of the rotary drill bit (7).

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