A multifunctional drill rod for wireless signal transmission of digital mixing piles

Abstract

The present invention relates to the technical field of drill rods, and specifically discloses a multifunctional drill rod for wireless signal transmission for digital mixing piles, including an equipment control room, a drill rod assembly, a support frame and a column, one side of the column is fixedly connected to the support frame and the equipment control room, the equipment control room is located at the lower end of the support frame, the column is slidably connected to the drill rod assembly on the side away from the support frame, and a self-cleaning assembly is fixedly arranged on one end of the column close to the drill rod assembly; the drill rod assembly includes a drill bit, four drill rod joints and four single drill rods, the four single drill rods are connected in pairs through a drill rod joint, the drill bit is connected to the lower end of the four single drill rods through a drill rod joint, a power head is fixedly arranged on the upper end of the four single drill rods, a signal line is arranged inside each single drill rod, and a signal receiving assembly is arranged at both ends of each signal line. The present invention can measure the inclination of the drill bit in real time during the construction of the mixing pile, and automatically clean and dry the drill bit.

Description

Technical Field

[0001] The invention relates to the technical field of drill rods, and in particular to a multifunctional drill rod for wireless signal transmission of digital mixing piles. Background Art

[0002] As the development of underground space becomes more and more vigorous, the demand for the length of mixing piles is also increasing. The existing mixing pile depth has increased from the conventional 20~30m to 40~50m. The verticality control of the drill bit is crucial to the quality of the pile. Considering the needs of hoisting and transportation, the drill rod of the ultra-deep mixing pile equipment is generally 9~15m per section, and joints are bound to occur between the drill rods. At the same time, in order to accurately measure the verticality of the drill bit, a side tilting device needs to be arranged on the drill bit.

[0003] However, due to the complex environmental conditions faced by underground projects, existing technical means can only arrange signal lines inside the hollow drill pipe, which has the following four main deficiencies: first, during the equipment installation process, threading and installing the drill pipe need to be carried out alternately, which seriously affects the installation speed; second, the drill pipe joint is not completely sealed, and slurry often enters, causing the signal line to short-circuit; third, the signal line may break during the rotation of the drill pipe, causing the signal line to be damaged frequently; finally, if the signal line is damaged during the construction process, the drill pipe can only be completely disassembled, which is extremely inconvenient for maintenance.

[0004] After the existing drill bit completes drilling, the entire drill bit needs to be removed and transported to a cleaning device for cleaning. Disassembling and transporting the drill bit is time-consuming and labor-intensive. If the drill bit is not cleaned, the dirt and sand attached to the drill bit will cause the next drilling accuracy to be reduced, and it is also easy to cause wear to the drill bit, reducing the life of the drill bit. Summary of the invention

[0005] In order to solve the above problems existing in the prior art, the present invention provides a multifunctional drill rod for wireless signal transmission of digital mixing piles, which can measure the inclination angle of the drill bit in real time during the construction of the mixing piles, and automatically clean and dry the drill bit.

[0006] The purpose of the present invention can be achieved by the following technical solutions:

[0007] A multifunctional drill rod for wireless signal transmission of digital mixing piles, comprising an equipment control room, a drill rod assembly, a support frame and a column, one side of the column is fixedly connected to the support frame and the equipment control room, the equipment control room is located at the lower end of the support frame, the column is slidably connected to the drill rod assembly on a side away from the support frame, and a self-cleaning assembly is fixedly arranged on one end of the column close to the drill rod assembly;

[0008] The drill rod assembly includes a drill bit, four drill rod joints and four single drill rods, the four single drill rods are connected in pairs through a drill rod joint, the drill bit is connected to the lower ends of the four single drill rods through a drill rod joint, a power head is fixedly arranged at the upper ends of the four single drill rods, a signal line is arranged inside each of the single drill rods, a signal receiving component is arranged at both ends of each signal line, and a communication assembly is arranged on each signal line;

[0009] A top signal transmitter is arranged at the upper end of the four single drill rods, a power head signal receiver is arranged at the lower end of the power head, and a satellite locator is arranged at the upper end of the column;

[0010] The drill pipe joint includes a wireless receiver, a wireless transmitter, an upper drill pipe concave head and a lower drill pipe convex head, the upper drill pipe concave head is sleeved on the outside of the lower drill pipe convex head, the signal receiving components at the upper end of each signal line are wireless transmitters, the signal receiving components at the lower end of each signal line are wireless receivers, each wireless transmitter is located inside the corresponding lower drill pipe convex head, and each wireless receiver is located inside the corresponding upper drill pipe concave head;

[0011] The self-cleaning component comprises a shell, a spiral track, a brushing component and two cleaning components, a placement hole is provided inside the shell, a moving groove is provided on the front and rear sides of the placement hole respectively, a cleaning component is provided in each moving groove, the two moving grooves are both located at the upper end of the placement hole, a spiral groove is provided on the placement hole, the spiral groove is located below the moving groove, and the spiral track is fixedly connected in the spiral groove;

[0012] The scrubbing assembly is slidably connected to the spiral track, and a longitudinal ventilation pipe is respectively arranged on the left and right sides of the shell, an air pressure pump is arranged at the upper end of each longitudinal ventilation pipe, a plurality of transverse ventilation pipes are arranged on each longitudinal ventilation pipe, and a dryer is fixedly arranged on the other end of each transverse ventilation pipe.

[0013] Furthermore, three fixtures are fixedly arranged on the column, and the three fixtures are all sleeved on the drill rod assembly.

[0014] Furthermore, each of the wireless transmitters is parallel to the corresponding wireless receiver.

[0015] Furthermore, the drill bit is located in the placement hole, and the diameter of the placement hole is larger than the outer diameter of the drill bit.

[0016] Furthermore, the communication assembly includes a communication component and a battery, and each of the single drill rods is provided with a sealed hatch cover, and the sealed hatch cover is rotatably connected to the single drill rod.

[0017] Furthermore, each of the single drill rods is provided with a dual-axis goniometer.

[0018] Furthermore, the brushing assembly includes a brush head, a telescopic device and a sliding block, the sliding block is provided with two T-blocks, the two T-blocks are located in two T-slots opened on the spiral track, the telescopic device is fixedly connected to the sliding block, a push rod is slidably provided on the telescopic device, the brush head is fixedly connected to the push rod, and a driving motor is fixedly provided on the sliding block.

[0019] Furthermore, a sensor is fixedly provided on the placement hole, and the sensor is located at the lowermost end of the drill bit.

[0020] Furthermore, the cleaning assembly includes a cleaner, a detergent box, a first sliding rod, a second sliding rod and a third sliding rod, the detergent box is fixedly connected to the outside of the shell, the cleaner has an arc-shaped structure, and the first sliding rod is fixedly connected to one end of the cleaner.

[0021] Furthermore, the first sliding rod is slidably connected to the second sliding rod, the second sliding rod is slidably connected to the third sliding rod, the third sliding rod is fixedly connected to the movable groove, a connecting pipe is fixedly provided on the cleaning device, the connecting pipe is located in the first sliding rod, the other end of the connecting pipe is fixedly connected to the detergent tank, and five nozzles are provided at the lower end of each of the cleaning devices.

[0022] The beneficial effects of the present invention are:

[0023] (1) By setting up a drill pipe joint, a signal receiving component and a communication assembly, the technical effect that can be achieved is that the dual-axis goniometer transmits the detected and calculated data through a signal line. Each drill pipe joint sends a signal through the wireless transmitter on the convex head of the lower drill pipe, and the wireless receiver on the concave head of the upper drill pipe receives the signal to complete the signal transmission on the drill pipe joint. The dual-axis goniometer can measure the inclination of the drill bit in real time during the construction of the mixing pile. The signal is wirelessly transmitted to the ground through the signal receiving component in the drill pipe, which greatly reduces the probability of sensor damage. It can be used in the construction of mixing piles at great depths and can realize wireless communication of underground and underwater mixing pile construction signals. Leakage in the drill pipe does not affect the signal transmission, which improves the signal stability and the verticality signal is not affected by the rotation of the drill pipe.

[0024] (2) By setting up a top signal transmitter, a power head signal receiver and a satellite locator, the technical effect that can be achieved is that when the signal is transmitted to the top of a single drill pipe, the signal line transmits the data to the top signal transmitter, the top signal transmitter transmits the signal to the power head signal receiver, the power head signal receiver transmits the signal to the satellite locator, the satellite locator transmits the data signal to the equipment control room, and the satellite locator can transmit the signal to the equipment control room. It is easy to install and avoids the disadvantages of alternating drill pipe hoisting and wire threading. It can transmit data directly to the ground without the need for staff to observe data outdoors, which is faster and more convenient.

[0025] (3) By setting up a self-cleaning component, the technical effect that can be achieved is that when the power head drives the drill bit to rise to the original position, the sensor detects the drill bit, the sensor transmits a signal to the cleaning component, the second sliding rod slides inward along the third sliding rod, the first sliding rod slides inward along the second sliding rod, the two cleaning agent boxes are started, the cleaning agent moves to the cleaning device through the connecting pipe, and is sprayed onto the drill bit through the nozzle; after the spraying is completed, the cleaning agent box automatically closes, the nozzle stops spraying, the first sliding rod slides outward along the second sliding rod, the second sliding rod slides outward along the third sliding rod, the cleaning device moves to the moving groove, the self-cleaning component can automatically detect the position of the drill bit and clean it, without removing the entire drill bit, and can automatically clean the drill bit after each use, thereby preventing the drill bit from being worn due to untimely cleaning and increasing the service life of the drill bit.

[0026] (4) By setting up a brushing component, the technical effect that can be achieved is that the drive motor is started, and the sliding block moves in a spiral shape from top to bottom along the spiral track, and the brush head is driven to brush the drill bit. A pressure sensor is set on the brush head. When the pressure sensor detects that the pressure value is too large, it transmits a signal to the telescopic device. The telescopic device automatically adjusts the length according to the received signal so that the drill bit is brushed. The brushing component can perform a spiral brushing operation on the drill bit through the spiral track without rotating the drill bit. The length of the brush head can be automatically adjusted for different types of drill bits. It has stronger applicability and does not need to replace the brush head. It is more convenient and automated.

[0027] (5) By providing an air pressure pump, a dryer, a longitudinal ventilation pipe and a transverse ventilation pipe, the technical effect that can be achieved is that when the brush head moves to the lower end of the spiral track, the signal sensor located at the lower end of the spiral track transmits the signal to the air pressure pump, and the air pressure pump is started, so that the gas passes from the longitudinal ventilation pipe to each transverse ventilation pipe, and then is transmitted from the dryer to the drill bit, and the drill bit is dried to complete the cleaning of the drill bit. By receiving the signal from the air pressure pump, the drill bit can be automatically dried through the dryer to prevent the accumulation of scale on the drill bit due to water stains, thereby resulting in incomplete cleaning of the drill bit and a reduction in the life of the drill bit. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 It is a structural schematic diagram of the drill rod assembly in the present invention;

[0031] Figure 3 is a cross-sectional view of a drill pipe joint in the present invention;

[0032] Figure 4 for Figure 1 A partial enlarged view of middle A;

[0033] Figure 5 for Figure 1 A partial enlarged view of B in the middle;

[0034] Figure 6 for Figure 1 A partial enlarged view of middle C;

[0035] Figure 7 for Figure 1 A partial enlarged view of D in the middle;

[0036] Figure 8 is a cross-sectional view of the self-cleaning assembly and the drill bit of the present invention;

[0037] Fig. 9 is a cross-sectional view of the self-cleaning component of the present invention;

[0038] Fig.10 It is a front view of the spiral track and the brush head of the present invention;

[0039] Fig.11 A top sectional view of the self-cleaning component of the present invention;

[0040] Fig.12 A bottom sectional view of the self-cleaning component of the present invention;

[0041] Description of reference numerals:

[0042] In the figure: 1. Equipment control room; 2. Drill rod assembly; 3. Drill bit; 4. Support frame; 5. Self-cleaning assembly; 6. Column; 7. Drill rod joint;

[0043] 21. Signal receiving component; 22. Communication assembly; 23. Single drill pipe; 24. Top signal transmitter; 25. Power head signal receiver; 26. Satellite locator;

[0044] 51. housing; 52. spiral groove; 53. spiral track; 54. brush head; 55. longitudinal vent pipe; 56. air pressure pump; 57. movable groove; 58. cleaning device; 59. sensor; 510. dryer; 511. transverse vent pipe; 512. sliding block; 513. driving motor; 514. telescopic device; 515. detergent box; 516. first sliding rod; 517. third sliding rod; 518. second sliding rod; 519. nozzle;

[0045] 71. Female head of the upper drill pipe section; 72. Wireless receiver; 73. Wireless transmitter; 74. Signal line; 75. Male head of the lower drill pipe section. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.

[0047] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0048] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0049] Reference Figures 1 to 12, a multifunctional drill rod for wireless signal transmission for digital mixing pile disclosed in the present invention, including an equipment control room 1, a drill rod assembly 2, a support frame 4 and a column 6, one side of the column 6 is fixedly connected to the support frame 4 and the equipment control room 1, the equipment control room 1 is located at the lower end of the support frame 4, the column 6 is slidably connected to the drill rod assembly 2 on the side away from the support frame 4, and a self-cleaning assembly 5 is fixedly arranged on one end of the column 6 close to the drill rod assembly 2. Three fixtures are fixedly arranged on the column 6, and the three fixtures are all sleeved on the drill rod assembly 2.

[0050] The drill rod assembly 2 includes a drill bit 3, four drill rod joints 7 and four single drill rods 23. The four single drill rods 23 are connected in pairs through a drill rod joint 7. The drill bit 3 is connected to the lower ends of the four single drill rods 23 through a drill rod joint 7. A power head is fixedly arranged at the upper ends of the four single drill rods 23. A signal line 74 is arranged inside each single drill rod 23. A signal receiving component 21 is arranged at both ends of each signal line 74. A communication assembly 22 is arranged on each signal line 74. A dual-axis goniometer is arranged on each single drill rod 23.

[0051] A top signal transmitter 24 is provided at the upper end of the four single drill rods 23, a power head signal receiver 25 is provided at the lower end of the power head, and a satellite locator 26 is provided at the upper end of the column 6. The communication assembly 22 includes a communication component and a battery, and a sealed hatch cover is provided on each single drill rod 23, and the sealed hatch cover is rotatably connected to the single drill rod 23.

[0052] The drill rod joint 7 includes a wireless receiver 72, a wireless transmitter 73, an upper drill rod concave head 71 and a lower drill rod convex head 75. The upper drill rod concave head 71 is sleeved on the outside of the lower drill rod convex head 75. The signal receiving component 21 at the upper end of each signal line 74 is a wireless transmitter 73, and the signal receiving component 21 at the lower end of each signal line 74 is a wireless receiver 72. Each wireless transmitter 73 is located inside the corresponding lower drill rod convex head 75, and each wireless receiver 72 is located inside the corresponding upper drill rod concave head 71. Each wireless transmitter 73 is parallel to the corresponding wireless receiver 72.

[0053] The dual-axis inclinometer can measure the inclination angle of the drill bit 3 in real time during the construction of the mixing pile. The signal is wirelessly transmitted to the ground through the signal receiving component 21 in the drill pipe, which greatly reduces the probability of sensor damage. It can be used in the construction of mixing piles at great depths, and can realize wireless communication of underground and underwater mixing pile construction signals. Leakage in the drill pipe will not affect the signal transmission, which improves the signal stability and the verticality signal is not affected by the rotation of the drill pipe.

[0054] The satellite locator 26 can transmit signals to the equipment control room 1. It is easy to install and avoids the disadvantages of alternating drill pipe hoisting and threading. It can transmit data directly to the ground without the need for staff to observe data outdoors, which is faster and more convenient.

[0055] The self-cleaning component 5 includes a shell 51, a spiral track 53, a brushing component and two cleaning components. A placement hole is opened inside the shell 51, and a movable groove 57 is opened on the front and rear sides of the placement hole respectively. There is a cleaning component in each movable groove 57. The two movable grooves 57 are both located at the upper end of the placement hole. A spiral groove 52 is opened on the placement hole, and the spiral groove 52 is located below the movable groove 57. The spiral track 53 is fixedly connected in the spiral groove 52.

[0056] The scrubbing assembly is slidably connected to the spiral track 53, and a signal sensor is arranged at the bottom of the spiral track 53. A longitudinal ventilation pipe 55 is arranged on the left and right sides of the housing 51, and an air pressure pump 56 is arranged at the upper end of each longitudinal ventilation pipe 55. A plurality of transverse ventilation pipes 511 are arranged on each longitudinal ventilation pipe 55, and a dryer 510 is fixedly arranged on the other end of each transverse ventilation pipe 511. The drill bit 3 is located in the placement hole, and the diameter of the placement hole is larger than the outer diameter of the drill bit 3. A sensor 59 is fixedly arranged on the placement hole, and the sensor 59 is located at the bottom of the drill bit 3.

[0057] By receiving the signal from the air pressure pump 56, the drill bit 3 can be automatically dried by the dryer 510 to prevent the accumulation of scale on the drill bit 3 due to water stains, thereby resulting in incomplete cleaning of the drill bit 3 and a shortened life of the drill bit 3.

[0058] The self-cleaning component 5 can automatically detect the position of the drill bit 3 and clean it without removing the entire drill bit 3. It can automatically clean the drill bit 3 after each use, preventing the drill bit 3 from being worn due to untimely cleaning and increasing the service life of the drill bit 3.

[0059] The brushing assembly includes a brush head 54, a telescopic device 514 and a sliding block 512. Two T-blocks are arranged on the sliding block 512. The two T-blocks are located in two T-slots opened on the spiral track 53. The telescopic device 514 is fixedly connected to the sliding block 512. A push rod is slidably arranged on the telescopic device 514. The brush head 54 is fixedly connected to the push rod. A driving motor 513 is fixedly arranged on the sliding block 512. A pressure sensor is arranged on the brush head 54.

[0060] The brushing component can perform a spiral brushing operation on the drill bit 3 through the spiral track 53 without rotating the drill bit 3. The length of the brush head 54 can be automatically adjusted for different types of drill bits 3. It has stronger applicability and does not need to replace the brush head 54. It is more convenient and automated.

[0061] The cleaning assembly includes a cleaner 58, a detergent box 515, a first sliding rod 516, a second sliding rod 518 and a third sliding rod 517. The detergent box 515 is fixedly connected to the outside of the shell 51. The cleaner 58 has an arc-shaped structure, and the first sliding rod 516 is fixedly connected to one end of the cleaner 58.

[0062] The first sliding rod 516 is slidably connected to the second sliding rod 518, the second sliding rod 518 is slidably connected to the third sliding rod 517, the third sliding rod 517 is fixedly connected to the moving groove 57, and a connecting pipe is fixedly provided on the cleaning device 58. The connecting pipe is located in the first sliding rod 516, and the other end of the connecting pipe is fixedly connected to the detergent tank 515. Five nozzles 519 are provided at the lower end of each cleaning device 58.

[0063] The working principle and use process of the present invention are as follows: the drill rod assembly 2 moves downward along the column 6 to drill a hole, each dual-axis goniometer measures the inclination angle of the corresponding single drill rod 23, and calculates the drilling deviation in the depth direction according to the length of the single drill rod 23 and the inclination angle of the single drill rod 23;

[0064] The dual-axis goniometer transmits the detected and calculated data through the signal line 74. Each drill rod joint 7 sends a signal through the wireless transmitter 73 on the lower drill rod convex head 75, and the wireless receiver 72 on the upper drill rod concave head 71 receives the signal, thus completing the signal transmission on the drill rod joint 7.

[0065] When the signal is transmitted to the top of the single drill rod 23, the signal line 74 transmits the data to the top signal transmitter 24, the top signal transmitter 24 transmits the signal to the power head signal receiver 25, the power head signal receiver 25 transmits the signal to the satellite locator 26, and the satellite locator 26 transmits the data signal to the equipment control room 1.

[0066] When the power head drives the drill bit 3 to rise to the original position, the sensor 59 detects the drill bit 3, and the sensor 59 transmits a signal to the cleaning component, the second sliding rod 518 slides inward along the third sliding rod 517, and the first sliding rod 516 slides inward along the second sliding rod 518, and the two cleaning agent boxes 515 are activated, and the cleaning agent moves to the cleaning device 58 through the connecting pipe and is sprinkled onto the drill bit 3 through the nozzle 519;

[0067] After spraying is completed, the detergent box 515 is automatically closed, the nozzle 519 stops spraying, the first sliding rod 516 slides outward along the second sliding rod 518, the second sliding rod 518 slides outward along the third sliding rod 517, and the washer 58 moves into the movable groove 57.

[0068] The driving motor 513 is started, and the sliding block 512 moves in a spiral shape from top to bottom along the spiral track 53, and the brush head 54 is driven to brush the drill bit 3. A pressure sensor is provided on the brush head 54. When the pressure sensor detects that the pressure value is too large, a signal is transmitted to the telescopic device 514. The telescopic device 514 automatically adjusts its length according to the received signal so that the drill bit 3 is brushed.

[0069] When the brush head 54 moves to the lower end of the spiral track 53, the signal sensor located at the lower end of the spiral track 53 transmits a signal to the air pressure pump 56, and the air pressure pump 56 starts, allowing the gas to pass from the longitudinal ventilation pipe 55 to each transverse ventilation pipe 511, and then pass from the dryer 510 to the drill bit 3, so as to dry the drill bit 3 and complete the cleaning of the drill bit 3.

[0070] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A multifunctional drill rod for wireless signal transmission of digital mixing piles, characterized by: The utility model comprises an equipment control room (1), a drill rod assembly (2), a support frame (4) and a column (6), wherein one side of the column (6) is fixedly connected to the support frame (4) and the equipment control room (1), the equipment control room (1) is located at the lower end of the support frame (4), the side of the column (6) away from the support frame (4) is slidably connected to the drill rod assembly (2), and the end of the column (6) close to the drill rod assembly (2) is fixedly provided with a self-cleaning assembly (5); The drill rod assembly (2) comprises a drill bit (3), four drill rod joints (7) and four single drill rods (23); the four single drill rods (23) are connected in pairs via a drill rod joint (7); the drill bit (3) is connected to the lower ends of the four single drill rods (23) via a drill rod joint (7); a power head is fixedly arranged at the upper ends of the four single drill rods (23); a signal line (74) is arranged inside each of the single drill rods (23); a signal receiving assembly (21) is arranged at both ends of each of the signal lines (74); and a communication assembly (22) is arranged on each of the signal lines (74); A top signal transmitter (24) is arranged at the upper end of the four single drill rods (23), a power head signal receiver (25) is arranged at the lower end of the power head, and a satellite locator (26) is arranged at the upper end of the column (6); The drill rod joint (7) comprises a wireless receiver (72), a wireless transmitter (73), an upper drill rod concave head (71) and a lower drill rod convex head (75); the upper drill rod concave head (71) is sleeved on the outside of the lower drill rod convex head (75); the signal receiving component (21) at the upper end of each signal line (74) is a wireless transmitter (73); the signal receiving component (21) at the lower end of each signal line (74) is a wireless receiver (72); each wireless transmitter (73) is located inside the corresponding lower drill rod convex head (75); and each wireless receiver (72) is located inside the corresponding upper drill rod concave head (71); The self-cleaning component (5) comprises a shell (51), a spiral track (53), a brushing component and two cleaning components. A placement hole is provided inside the shell (51). A moving groove (57) is provided on both the front and rear sides of the placement hole. Each of the moving grooves (57) contains a cleaning component. Both of the moving grooves (57) are located at the upper end of the placement hole. A spiral groove (52) is provided on the placement hole. The spiral groove (52) is located below the moving groove (57). The spiral track (53) is fixedly connected inside the spiral groove (52). The scrubbing assembly is slidably connected to the spiral track (53), and a longitudinal ventilation pipe (55) is respectively arranged on the left and right sides of the shell (51), and an air pressure pump (56) is arranged at the upper end of each longitudinal ventilation pipe (55), and a plurality of transverse ventilation pipes (511) are arranged on each longitudinal ventilation pipe (55), and a dryer (510) is fixedly arranged on the other end of each transverse ventilation pipe (511).

2. The multifunctional drill rod for wireless signal transmission for digital mixing pile according to claim 1, characterized in that: Three fixers are fixedly arranged on the column (6), and the three fixers are all sleeved on the drill rod assembly (2).

3. The multifunctional drill rod for wireless signal transmission for digital mixing pile according to claim 1, characterized in that: Each of the wireless transmitters (73) is parallel to the corresponding wireless receiver (72).

4. The multifunctional drill rod for wireless signal transmission for digital mixing pile according to claim 1, characterized in that: The drill bit (3) is located in the placement hole, and the diameter of the placement hole is larger than the outer diameter of the drill bit (3).

5. The multifunctional drill rod for wireless signal transmission for digital mixing pile according to claim 1, characterized in that: The communication assembly (22) comprises a communication component and a battery. Each of the single drill rods (23) is provided with a sealed hatch cover, and the sealed hatch cover is rotatably connected to the single drill rod (23).

6. The multifunctional drill rod for wireless signal transmission for digital mixing pile according to claim 1, characterized in that: Each of the single drill rods (23) is provided with a dual-axis goniometer.

7. The multifunctional drill rod for wireless signal transmission for digital mixing pile according to claim 1, characterized in that: The brushing assembly comprises a brush head (54), a telescopic device (514) and a sliding block (512); the sliding block (512) is provided with two T-shaped blocks, the two T-shaped blocks are located in two T-shaped grooves provided on the spiral track (53); the telescopic device (514) is fixedly connected to the sliding block (512); a push rod is slidably provided on the telescopic device (514); the brush head (54) is fixedly connected to the push rod; and a driving motor (513) is fixedly provided on the sliding block (512).

8. The multifunctional drill rod for wireless signal transmission for digital mixing pile according to claim 7, characterized in that: A sensor (59) is fixedly arranged on the placement hole, and the sensor (59) is located at the lowermost end of the drill bit (3).

9. The multifunctional drill rod for wireless signal transmission for digital mixing pile according to claim 8, characterized in that: The cleaning assembly comprises a cleaning device (58), a cleaning agent box (515), a first sliding rod (516), a second sliding rod (518) and a third sliding rod (517); the cleaning agent box (515) is fixedly connected to the outside of the shell (51); the cleaning device (58) is in an arc-shaped structure; one end of the cleaning device (58) is fixedly connected to the first sliding rod (516).

10. The multifunctional drill rod for wireless signal transmission for digital mixing pile according to claim 9, characterized in that: The first sliding rod (516) is slidably connected to the second sliding rod (518), the second sliding rod (518) is slidably connected to the third sliding rod (517), the third sliding rod (517) is fixedly connected to the movable groove (57), a connecting pipe is fixedly arranged on the cleaning device (58), the connecting pipe is located in the first sliding rod (516), the other end of the connecting pipe is fixedly connected to the detergent tank (515), and five nozzles (519) are arranged at the lower end of each cleaning device (58).

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