CN215804376U - Drilling and reaming drilling tool convenient for high-pressure grouting - Google Patents

Abstract

The utility model discloses a drilling and reaming drilling tool convenient for high-pressure grouting, which belongs to the technical field of pile foundation construction appliances and comprises an inner drill cylinder, wherein the top end of the inner drill cylinder is connected with a connector, the connector is in threaded connection with a drill rod, a grouting cavity is arranged inside the inner drill cylinder and below the connector, and a grouting hole is arranged inside the inner drill cylinder and below the grouting cavity; the utility model is provided with an outer drill cylinder and an inner drill cylinder, a connector, a grouting cavity, a grouting hole, a hole sealing plate, a connecting shaft and a drilling cutter are arranged on the inner drill cylinder, a holding tank, a hydraulic cylinder, a connecting plate, an upper cutter plate, a lower cutter plate, a connecting rotating shaft and a positioning block are arranged on the outer drill cylinder, and the outer drill cylinder and the inner drill cylinder are in threaded connection.

Description

Drilling and reaming drilling tool convenient for high-pressure grouting

Technical Field

The utility model belongs to the technical field of pile foundation construction tools, and particularly relates to a drilling and reaming drilling tool convenient for high-pressure grouting.

Background

The pile foundation construction refers to the process of building foundation construction, and a drilling and reaming drilling tool is often needed in the pile foundation construction process.

Chinese patent application number is CN202020173108.1 discloses high pressure grout drilling reaming drilling tool of being convenient for, this high pressure grout drilling reaming drilling tool of being convenient for, after reaming finishes, can directly realize carrying out the slip casting to stake downthehole portion, reduces the step of mentioning the drilling rod and changing the drilling tool body, reduces the waste of artifical labour for the efficiency of construction is higher.

The drilling cutter and the hole expanding cutter are arranged in an integrated and non-detachable structure with the drilling tool body, the abrasion degree of the drilling cutter and the abrasion degree of the hole expanding cutter in the actual use process are different, the structure needs to be discarded integrally when any structure of the drilling cutter or the hole expanding cutter is damaged, and resource waste is easily caused.

SUMMERY OF THE UTILITY MODEL

To solve the problems set forth in the background art described above. The utility model provides a drilling and reaming drilling tool convenient for high-pressure grouting, which has the characteristics that only a damaged structural part is discarded when any structure of a drilling cutter or a reaming structure is damaged, the intact structural part can be recycled, and the problem of resource waste is avoided.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a drilling reaming drilling tool convenient to high pressure grout, bores a section of thick bamboo in including, the top of interior brill section of thick bamboo is connected with the connector, connector and drilling rod threaded connection, the inside of interior brill section of thick bamboo and the below that is located the connector are provided with the slip casting cavity, the inside of interior brill section of thick bamboo and the below that is located the slip casting cavity are provided with the slip casting hole, connector, slip casting cavity and slip casting hole intercommunication, the bottom in slip casting hole is provided with the hole-sealing board, be connected with the connecting axle between hole-sealing board and interior brill section of thick bamboo, the equidistant range in bottom of interior brill section of thick bamboo is connected with four drilling knives, the outside screw thread of interior brill section of thick bamboo has cup jointed outer brill section of thick bamboo, the outer wall of outer brill section of thick bamboo leans on the below to be provided with the reaming structure.

Preferably, a larger distance exists between the drilling cutter and the grout outlet of the grouting hole.

Preferably, the reaming structure includes four holding tanks, four the below is leaned on to the outer wall that the holding tank equidistant set up at the outer drill section of thick bamboo, the top of holding tank is equipped with the pneumatic cylinder, the output shaft of pneumatic cylinder has the connecting plate, one side that the connecting plate is close to the holding tank open end is provided with the cutting board, the below of going up the cutting board is provided with down the cutting board, all be connected with the connection pivot between connecting plate and last cutting board, between last cutting board and lower cutting board and between lower cutting board and the outer drill section of thick bamboo, just be located the one side that is close to last cutting board and be connected with the locating piece on the cutting board down.

Preferably, the bottom end of the grouting hole and the position above the hole sealing plate are connected with a blocking block.

Preferably, the top end of the blocking block is arranged in an inclined structure, and the bottom end of the blocking block is arranged in a horizontal structure.

Compared with the prior art, the utility model has the beneficial effects that:

1. the utility model is provided with an outer drill cylinder and an inner drill cylinder, a connector, a grouting cavity, a grouting hole, a hole sealing plate, a connecting shaft and a drilling cutter are arranged on the inner drill cylinder, a holding tank, a hydraulic cylinder, a connecting plate, an upper cutter plate, a lower cutter plate, a connecting rotating shaft and a positioning block are arranged on the outer drill cylinder, and the outer drill cylinder and the inner drill cylinder are in threaded connection.

2. According to the utility model, the blocking block is arranged at the bottom end of the grouting hole and above the hole sealing plate, so that the hole sealing plate can be prevented from being jacked up and opened by soil when a drilling tool moves downwards, and the problem that the grouting hole is blocked by the soil entering the grouting hole to influence grouting can be effectively avoided; the top that hinders the piece simultaneously sets up to the slope structure, and the residual top that has the piece that hinders of mud can be avoided when the slip casting, stops mud extravagant.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a vertical cross-sectional view of the present invention;

FIG. 3 is an enlarged view taken at A of FIG. 2 in accordance with the present invention;

FIG. 4 is an enlarged view taken at B of FIG. 2 in accordance with the present invention;

in the figure: 1. an inner drill cylinder; 2. an outer drill cylinder; 3. a connector; 4. grouting a cavity; 5. grouting holes; 6. a hydraulic cylinder; 7. accommodating grooves; 8. connecting the rotating shaft; 9. an upper knife board; 10. positioning blocks; 11. a lower knife board; 12. a connecting plate; 13. a blocking block; 14. a drilling cutter; 15. a connecting shaft; 16. and (5) sealing the hole plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1-4, the present invention provides the following technical solutions: the utility model provides a drilling reaming drilling tool convenient to high pressure grout, including interior drill pipe 1, the top of interior drill pipe 1 is connected with connector 3, connector 3 and drilling rod threaded connection, the inside of interior drill pipe 1 and the below that is located connector 3 are provided with slip casting cavity 4, the inside of interior drill pipe 1 and the below that is located slip casting cavity 4 are provided with grouting holes 5, connector 3, slip casting cavity 4 and grouting holes 5 intercommunication, the bottom of grouting holes 5 is provided with hole sealing plate 16, be connected with connecting axle 15 between hole sealing plate 16 and interior drill pipe 1, the equidistant range of bottom of interior drill pipe 1 is connected with four drilling knives 14, the outside screw thread of interior drill pipe 1 has cup jointed outer drill pipe 2, the outer wall of outer drill pipe 2 leans on the below to be provided with the reaming structure.

Specifically, a large distance exists between the drilling knife 14 and the grout outlet of the grouting hole 5.

Specifically, the reaming structure includes four holding tanks 7, four equidistant settings of holding tank 7 lean on the below at the outer wall of outer drill pipe 2, the top of holding tank 7 is equipped with pneumatic cylinder 6, the output shaft of pneumatic cylinder 6 has connecting plate 12, one side that connecting plate 12 is close to the 7 open ends of holding tank is provided with cutting board 9, the below of going up cutting board 9 is provided with down cutting board 11, between connecting plate 12 and last cutting board 9, go up cutting board 9 and lower cutting board 11 and all be connected with between lower cutting board 11 and outer drill pipe 2 and be connected with pivot 8, just one side that is located near last cutting board 9 on the cutting board 11 is connected with locating piece 10.

Before the drilling and reaming of the drilling tool, connecting a connector 3 of the drilling and reaming tool with a drill rod in a threaded mode;

when the hole drilling and expanding drilling tool drills a hole, the hole drilling and expanding drilling tool is placed into a soil body to be drilled, a drill rod is rotated at a high speed, and a pile hole is drilled to a specified depth by using a drilling cutter 14 to complete drilling;

when the drilling and reaming drilling tool is used for reaming, the four hydraulic cylinders 6 are started, the four hydraulic cylinders 6 respectively drive the corresponding piston rods to move downwards, the piston rods of the four hydraulic cylinders 6 respectively drive the corresponding connecting plates 12 to move downwards, the connecting ends of the corresponding upper knife boards 9 are driven to move downwards in the downward moving process of the four connecting plates 12, and the connecting ends of the four upper knife boards 9 swing and expand by taking the connecting rotating shafts 8 connected with the four upper knife boards 9 and the corresponding lower knife boards 11 as shafts to form four V-shaped reaming cutters, and a drill rod is continuously rotated at a high speed to complete reaming;

when grouting is carried out through the drilling and reaming drilling tool, the drill rod is lifted upwards, the drill rod drives the drilling and reaming drilling tool to move upwards, the hole sealing plate 16 moves downwards under the action of gravity, the grouting hole 5 is opened, grouting is carried out into the grouting cavity 4 through the drill rod, and slurry in the grouting cavity 4 is grouted into a reaming hole and a pile hole through the grouting hole 5;

after grouting is finished, the four hydraulic cylinders 6 respectively drive the corresponding piston rods to move upwards, the piston rods of the four hydraulic cylinders 6 respectively drive the corresponding connecting plates 12 to move upwards, the connecting ends of the corresponding upper knife boards 9 are driven to move upwards in the moving-up process of the four connecting plates 12, and in the moving-up process of the connecting ends of the four upper knife boards 9, the four upper knife boards 9 and the corresponding lower knife boards 11 swing and retract by taking the connecting rotating shafts 8 connected with the four upper knife boards 9 and the corresponding lower knife boards 11 as shafts, and are accommodated in the four accommodating grooves 7, the drill rod is lifted up and drives the drilling and reaming drilling tool to move upwards until the drilling and reaming tool is completely pulled out;

when the drill bit is used for a long time, if any structure of the drilling cutter 14 or the reaming structure is damaged, the outer drill cylinder 2 is rotated reversely until the outer drill cylinder 2 is separated from the inner drill cylinder 1, the damaged structure is abandoned, the intact structure is recycled, resources are saved, and waste is avoided.

Example 2

The present embodiment is different from embodiment 1 in that:

specifically, the bottom end of the grouting hole 5 is connected with the blocking block 13 above the hole sealing plate 16.

When the drilling and reaming tool drills and reams holes, the blocking block 13 is arranged, so that the hole sealing plate 16 cannot be jacked up and opened by soil, and the problem that the grouting hole 5 is blocked by the grouting hole 5 to influence grouting can be effectively avoided.

Specifically, the top end of the blocking block 13 is arranged in an inclined structure, and the bottom end of the blocking block 13 is arranged in a horizontal structure.

Because the top of hindering the piece 13 sets up for the slope structure, consequently mud can not remain in the top that hinders piece 13 during slip casting, stops mud extravagant.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides a drilling reaming drilling tool convenient to high pressure grout, includes interior drill section of thick bamboo (1), its characterized in that: the top of interior drill pipe (1) is connected with connector (3), connector (3) and drilling rod threaded connection, the inside of interior drill pipe (1) and the below that is located connector (3) are provided with slip casting cavity (4), the inside of interior drill pipe (1) and the below that is located slip casting cavity (4) are provided with slip casting hole (5), connector (3), slip casting cavity (4) and slip casting hole (5) intercommunication, the bottom of slip casting hole (5) is provided with hole sealing plate (16), be connected with connecting axle (15) between hole sealing plate (16) and interior drill pipe (1), the equidistant range in bottom of interior drill pipe (1) is connected with four drilling sword (14), the outside screw thread of interior drill pipe (1) has cup jointed outer drill pipe (2), the outer wall of outer drill pipe (2) leans on the below to be provided with the reaming structure.

2. The reamer tool for drilling and reaming convenient for high pressure grouting according to claim 1, wherein: and a larger distance is reserved between the drilling cutter (14) and the grout outlet of the grouting hole (5).

3. The reamer tool for drilling and reaming convenient for high pressure grouting according to claim 1, wherein: the reaming structure includes four holding tanks (7), four holding tank (7) equidistant setting leans on the below at the outer wall of boring a section of thick bamboo (2) outward, the top of holding tank (7) is equipped with pneumatic cylinder (6), the output shaft of pneumatic cylinder (6) has connecting plate (12), one side that connecting plate (12) are close to holding tank (7) open end is provided with cutting board (9), the below of going up cutting board (9) is provided with down cutting board (11), between connecting plate (12) and last cutting board (9), go up cutting board (9) and cutting board (11) down and all be connected with between connecting shaft (8) between cutting board (11) and outer boring a section of thick bamboo (2) down, one side that just is located near last cutting board (9) on cutting board (11) is connected with locating piece (10).

4. The reamer tool for drilling and reaming convenient for high pressure grouting according to claim 1, wherein: and a blocking block (13) is connected to the bottom end of the grouting hole (5) and above the hole sealing plate (16).

5. The reamer tool of claim 4, wherein the reamer tool comprises: the top of hindering piece (13) sets up for the inclined structure, and hinders the bottom of piece (13) and set up for horizontal structure.

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