CN113062691B

CN113062691B - Geothermal energy power generation geothermal drilling device and use method thereof

Info

Publication number: CN113062691B
Application number: CN202110460237.8A
Authority: CN
Inventors: 陈鹏; 张继; 安世泽; 杨明富; 刘文涛; 杨晓东; 蒲文斌; 钱康; 李强
Original assignee: Sichuan Provincial Bureau Of Geological And Mineral Exploration Chengdu Hydrology And Geology Engineering Geological Team
Current assignee: The First Geological Brigade of Sichuan Province
Priority date: 2021-04-27
Filing date: 2021-04-27
Publication date: 2023-04-28
Anticipated expiration: 2041-04-27
Also published as: CN113062691A

Abstract

The invention provides a geothermal energy power generation geothermal drilling device and a use method thereof, aiming at the problems that the existing geothermal drilling device is inconvenient to store travelling wheels, stably park by taking root and prevent a drill bit from falling down in the travelling process, the geothermal drilling device comprises a driving motor and the drill bit arranged below the driving motor, an extension drill column and a drill rod are arranged below the driving motor, and the bottom end of the drill rod is fixedly connected with the top of the drill bit. The invention has reasonable design, can drill deeply, is convenient for single drive to synchronously realize the functions of storing travelling wheels, stably parking taking roots and relieving anti-falling restriction, is convenient for single drive to synchronously realize the functions of moving out travelling wheels, stably stopping taking roots and preventing a drill bit from falling during driving, greatly improves the stability of drilling work, realizes a multifunctional mutually matched mode, does not need to separately set up drives in addition, ensures more integration and concentration, and improves long-term use benefit.

Description

Geothermal energy power generation geothermal drilling device and use method thereof

Technical Field

The invention relates to the technical field of drilling equipment, in particular to a geothermal drilling device for geothermal energy power generation and a use method thereof.

Background

The geothermal energy is natural thermal energy extracted from the crust, the thermal energy comes from lava in the earth and exists in a thermal form, geothermal drilling is a drilling and well-forming technology for exploring and developing geothermal energy sources which are hidden in the crust, the detected high-temperature groundwater and high-temperature steam formed by the detected high-temperature groundwater can be used as geothermal energy for generating power, the geothermal energy is an environment-friendly power generation mode, the existing energy sources in the nature are reasonably utilized, the pollution of artificial energy sources to the environment can be reduced, and when the geothermal energy is generated, a drilling device is needed for drilling soil, so that the effective geothermal energy can be conveniently detected and utilized.

In order to drill depth, a plurality of extension rods which can be assembled and fixed are mostly adopted to be matched with a drill bit for drilling, the geothermal drilling device is mainly composed of a bracket, an electric telescopic rod, a driving motor, a plurality of extension rods which can be assembled and the drill bit, the electric telescopic rod controls the driving motor and the drill bit to lift, the driving motor drives the drill bit to drill into the ground, when the predicted depth is not reached, the extension rods are arranged at the top of the drill bit, the extension rods are connected with the output shaft of the driving motor, and then drilling is continued, so that deeper geothermal energy drilling work is adapted;

The existing geothermal energy power generation geothermal drilling device is provided with a travelling wheel at the bottom of a bracket of the drilling device in order to facilitate the movement of personnel, and has some defects; 1. the travelling wheel is inconvenient to store, and even the universal wheel with the braking function has the defects that the contact friction area with the ground is small, and the phenomenon of large displacement is easy to occur due to factors such as false touch; 2. the device has the defect that the whole device cannot be firmly and firmly parked after rooting during drilling, and the risk of breaking a drill rod due to displacement caused by vibration in drilling work is high; 3. the anti-falling function of the drill bit is lacking in the moving process; easily when the personnel moves the in-process of device, because of factors such as driving vibrations lead to the electric telescopic handle self to the pulling force of drill bit inefficacy, the phenomenon that the drill bit moves down and ground collision damages appears.

In order to solve the problems of inconvenient storage of travelling wheels, stable parking after taking root and drill bit falling prevention during driving, a geothermal drilling device for geothermal energy power generation and a use method thereof are provided for solving the problems.

Disclosure of Invention

The geothermal energy power generation geothermal drilling device and the use method thereof solve the problems that the travelling wheels are inconvenient to store, stably park after taking root and the drill bit is prevented from falling during running.

In order to achieve the above purpose, the present invention adopts the following technical scheme:

the geothermal energy power generation geothermal drilling device comprises a driving motor and a drill bit arranged below the driving motor, wherein an extension drill string and a drill rod are arranged below the driving motor, the bottom end of the drill rod is fixedly connected with the top of the drill bit, the top end of the drill rod is in movable contact with the bottom end of the extension drill string, a base is arranged below the driving motor, a guide sleeve is embedded in the top of the base, the guide sleeve is movably sleeved on the drill rod, and a fixing assembly is arranged between an output shaft of the driving motor and the extension drill string and between the extension drill string and the drill rod;

the top fixedly connected with two guide bars of base, the slip cap is equipped with same U-shaped seat on two guide bars, and driving motor fixed mounting is on the bottom inner wall of U-shaped seat, and the top fixedly connected with of two guide bars is the same shape roof that returns, and the top fixed mounting of shape roof has multistage electric telescopic handle, and multistage electric telescopic handle's extension end extends to the below of shape roof and with the top fixed connection of U-shaped seat, the top of base is provided with the reinforcing and surely stops the mechanism, still be provided with on the base with reinforcing surely stop mechanism matched with together drive gyro wheel receiving mechanism.

Preferably, the reinforcing stable machine constructs including two backup pads of fixed connection at the base top, two guide bars are located between two backup pads, the left side fixedly connected with U-shaped handle of the left backup pad that is located in two backup pads, the bottom fixed connection of backup pad and shape roof returns, rectangular channel has been seted up to the bottom of backup pad, two rectangular holes have been seted up at the top of base, the rectangle inslot slip cap is equipped with the rectangle pole, the bottom of rectangle pole extends to corresponding rectangle downthehole and rotates and install the carousel, the bottom fixedly connected with auger ground leaf of carousel, and the bottom of auger ground leaf extends to the below of base, rotate between the both sides inner wall of rectangular channel and install first screw rod, the rectangle pole thread bush is established on corresponding first screw rod, the top fixedly connected with square rod of carousel, first screw rod slip cap is established on the square rod, the top of first screw rod extends to shape roof and fixedly connected with sprocket, the transmission is connected with same chain on two sprockets, the rear side that the end that stretches out of multistage electric telescopic handle is located the chain, top one side motor output shaft of shape roof fixedly installed, and the bottom of first sprocket is located in the top of two sprocket and the fixed connection of sprocket.

Preferably, the same-drive roller storage mechanism comprises two rectangular storage grooves formed in the bottom of the base, two rectangular holes are formed in the position between the two rectangular storage grooves, a lifting plate is slidably mounted between inner walls of two sides of the rectangular storage grooves, two travelling wheels are rotatably mounted at the bottom of the lifting plate, the bottom of each travelling wheel extends to the lower side of the base, two rectangular boxes are fixedly connected with rectangular boxes which are arranged at the bottom of one side, which is far away from each other, of each two rectangular boxes, the two rectangular boxes are respectively provided with an opening, vertical rods are fixedly connected with the top of each lifting plate, the top ends of the vertical rods extend into the corresponding rectangular boxes, the two vertical rods are respectively sleeved with four balls in a rectangular manner, the balls are in rolling contact with inner walls of one side, which are far away from each other, of each corresponding rectangular box are respectively embedded with a first rack, one side, which is near each other, of each two vertical rods is respectively embedded with a second rack, gears are rotatably mounted between the inner walls of the front side and the inner walls of each rectangular box, the gears are meshed between the corresponding first racks and the second racks, perforations are respectively formed in the inner walls of one side, which are far away from each other, which are respectively, and the two rectangular boxes are located in the corresponding perforated holes, and are not contacted with the inner walls.

Preferably, the first round hole has been seted up at the top of base, and the outside fixed connection of the inner wall of first round hole and uide bushing, first screw hole has been seted up on the right side inner wall of uide bushing, and first screw hole internal thread cover is equipped with T shape and presses solid screw rod, the right side of T shape presses solid screw rod extends to the uide bushing outward, the outside of T shape presses solid screw rod is annular equidistant fixedly connected with a plurality of handle bars, the second round hole has all been seted up to the top both sides of U-shaped seat, and the inner wall of second round hole and the outside sliding connection of the guide bar that corresponds, the third round hole has been seted up on the bottom inner wall of U-shaped seat, driving motor's output shaft is located the third round hole and with the inner wall contactless of third round hole.

Preferably, the top inner wall of the rectangular groove is provided with a fourth round hole, the first screw is located in the corresponding fourth round hole and is not in contact with the inner wall of the fourth round hole, a first bearing is fixedly connected between the inner walls of the two sides of the rectangular groove, the inner wall of the bottom of the rectangular groove is provided with two fifth round holes, the inner wall of the bottom of the rectangular groove is fixedly sleeved with a second bearing, the inner ring of the second bearing and the inner ring of the first bearing are both in welding sleeve with the outer side of the corresponding first screw, the bottom end of the first screw is provided with a square groove, and the inner wall of the square groove is in sliding connection with the outer side of the corresponding square rod.

Preferably, the bottom of rectangular rod has seted up the rotary groove, and the fixed cover in the rotary groove is equipped with the third bearing, and the inner circle of third bearing and the outside welding suit of the carousel that corresponds have seted up the second screw hole on the top inner wall in rotary groove, and second screw hole and corresponding first screw rod threaded connection.

Preferably, two T-shaped sliding rails are fixedly connected to the inner walls of the two sides of the rectangular storage groove, two T-shaped sliding grooves with the top and the bottom being provided with openings are formed in the two sides of the lifting plate, the T-shaped sliding grooves are in sliding connection with the corresponding T-shaped sliding rails, rectangular through holes are formed in the inner walls of the top of the rectangular storage groove, and the inner walls of the rectangular through holes are in sliding connection with the outer sides of the corresponding vertical rods.

Preferably, a fixed shaft is fixedly connected between the front side inner wall and the rear side inner wall of the rectangular box, a sixth round hole is formed in the front side of the gear, a fourth bearing is fixedly sleeved in the sixth round hole, an inner ring of the fourth bearing is fixedly sleeved with the outer side of the corresponding fixed shaft, a third groove is formed in one side, close to each other, of the vertical rod and the corresponding rectangular rod, and the outer side of the first rack and the outer side of the second rack are fixedly connected with the inner wall of the corresponding third groove respectively.

Preferably, the right side of the rectangular rod is fixedly connected with a limiting block, the right side of the limiting block extends out of a corresponding rectangular groove, a rectangular anti-falling stop block is arranged in the rectangular pipe in a sliding sleeve, the right side of the rectangular anti-falling stop block extends out of the rectangular pipe, the rectangular anti-falling stop block is located below the U-shaped seat and is matched with the U-shaped seat, a first groove is formed in the left side of the rectangular anti-falling stop block, a spring is fixedly connected between the right side inner wall of the first groove and the left end inner wall of the rectangular pipe, a second groove is formed in the left end of the rectangular pipe, the bottom of the second groove is provided with an opening, a fixed pulley is rotatably arranged on the top inner wall of the second groove, a soft wire rope is fixedly connected on the right side inner wall of the first groove, one end of the soft wire rope bypasses the top of the fixed pulley and is connected with the inner wall of the rectangular groove at the front side of the limiting block, and the front side of the rectangular groove is connected with the front side of the limiting block.

The invention also provides a using method of the geothermal energy power generation geothermal drilling device, which comprises the following steps:

s1: when the device is used, the device is moved to a detection area through the four travelling wheels, and in the moving process, the rectangular anti-falling stop block is positioned below the U-shaped seat, the rectangular anti-falling stop block shields and limits the U-shaped seat, the phenomenon that the U-shaped seat falls downwards due to vibration and other factors in the moving process is avoided, the U-shaped seat sequentially passes through the driving motor, the extension drill string and the drill rod to limit the drill bit, the drill bit is prevented from falling and colliding with the ground in the moving process to cause damage, and the anti-falling protection of the drill bit in the moving process is realized;

s2: after moving to a detection area, before drilling, a first motor is started in the forward direction, an output shaft of the first motor drives a left chain wheel to rotate, the left chain wheel drives a right chain wheel to rotate through a chain, two chain wheels synchronously rotate and drive two first screw rods to rotate, the first screw rods drive rectangular rods to slide downwards in rectangular grooves when rotating in corresponding second threaded holes, the rectangular rods drive auger ground leaves to move downwards through corresponding turntables, the turntables drive corresponding square rods to slide downwards in square grooves, the first screw rods drive the square rods to rotate through corresponding square grooves, and the square rods drive the auger ground leaves to rotate through corresponding turntables;

S3: the rectangular rod in S2 also drives the corresponding first rack to move downwards when moving downwards, the first rack drives the gear meshed with the first rack to rotate on the fixed shaft, the gear drives the second rack meshed with the first rack to move upwards, the second rack drives the corresponding vertical rod to move upwards, the vertical rod drives the corresponding ball to roll on the inner wall of the rectangular box, the vertical rod drives the corresponding lifting plate to slide upwards on the T-shaped sliding rail, the vertical rod drives the corresponding two travelling wheels to move upwards gradually and store in the rectangular storage groove, four travelling wheels are stored, the auger ground leaves in the state of moving downwards and rotating simultaneously can rotate downwards and drill into the ground, the effect of root taking and fixing is achieved, and the device and the ground are root taking and fixed while the travelling wheels are stored;

s4: s2, when the rectangular rod moves downwards, the left rectangular rod also drives the limiting block to move downwards, the limiting block drives the soft steel wire rope to slide downwards at the top of the fixed pulley, the soft steel wire rope drives the rectangular anti-falling stop block to slide leftwards in the rectangular pipe and compress the spring, the rectangular anti-falling stop block is staggered leftwards with the bottom of the U-shaped seat, the limitation on the U-shaped seat and the drill bit is removed, and the limitation on the drill bit is removed synchronously during stable parking;

S5: when drilling, starting a driving motor, driving the extension drill string to rotate through a corresponding fixing component, driving the drill rod to rotate through a corresponding fixing component by the extension drill string, driving the drill rod to rotate by the drill rod, starting the multi-stage electric telescopic rod forward, driving the U-shaped seat to slide downwards on the two guide rods by the extending end of the multi-stage electric telescopic rod, driving the drill rod to move downwards in the guide sleeve sequentially through the driving motor and the extension drill string, guiding the drill rod downwards vertically by the guide sleeve, driving the drill rod to move downwards, enabling the drill bit to be in a rotating and downwards moving state at the moment, and gradually drilling holes on the ground downwards by the rotating and downwards moving drill bit to realize drilling;

s6: when the deep drilling is needed, after the U-shaped seat moves downwards to a low position, the extension drill string moves downwards into the guide sleeve, the T-shaped pressing screw rod is rotated forwards to enable the T-shaped pressing screw rod to move leftwards and press and lock the extension drill string, the extension drill string is detached from the bottom end of the output shaft of the driving motor through the fixing assembly, the external extension drill string with the same specification is fixed between the top end of the corresponding extension drill string and the bottom end of the output shaft of the driving motor through the fixing assembly, downward drilling operation can be performed again, and deep drilling is achieved.

Compared with the prior art, the invention has the beneficial effects that:

the invention has reasonable design, can drill deeply, is convenient for single drive to synchronously realize the functions of storing travelling wheels, stably parking taking roots and relieving anti-falling restriction, is convenient for single drive to synchronously realize the functions of moving out travelling wheels, stably stopping taking roots and preventing a drill bit from falling during driving, greatly improves the stability of drilling work, realizes a multifunctional mutually matched mode, does not need to separately set up drives in addition, ensures more integration and concentration, and improves long-term use benefit.

Drawings

Fig. 1 is a schematic structural view of a geothermal drilling device for geothermal power generation according to an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of FIG. 1;

FIG. 3 is an enlarged schematic view of the portion A in FIG. 2;

FIG. 4 is an enlarged schematic view of the portion B in FIG. 2;

fig. 5 is a schematic structural diagram of a geothermal drilling device for geothermal power generation according to a second embodiment of the present invention;

FIG. 6 is a schematic cross-sectional view of FIG. 5

Fig. 7 is an enlarged schematic view of a portion C in fig. 6.

In the figure: 100 driving motor, 101 drill bit, 102 drill rod, 103 extension drill string, 104 guide sleeve, 105T-shaped press-fixing screw, 200 square clamping block, 201 square clamping groove, 202T-shaped hole, 203 thread groove, 204T-shaped bolt, 1 base, 2 guide rod, 3U-shaped seat, 4 multistage electric telescopic rod, 5 round top plate, 6 support plate, 7 rectangular groove, 8 rectangular rod, 9 rectangular hole, 10 first screw, 11 sprocket, 12 first motor, 13 turntables, 14 spiral ground leaves, 15 square rod, 16 second threaded hole, 17 square groove, 18 rectangular box, 19 rectangular storage groove, 20 lifting plate, 21 travelling wheels, 22 vertical rods, 23 balls, 24 first racks, 25 perforated holes, 26 fixed shafts, 27 gears, 28 second racks, 29T-shaped slide rails, 30 limit blocks, 31 rectangular pipes, 32 rectangular anti-falling blocks, 33 springs, 34 second grooves, 35 fixed pulleys, 36 soft wire ropes and 37 chains.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.

Example 1

Referring to fig. 1-4, this embodiment provides a geothermal energy power generation geothermal drilling device, including a driving motor 100 and a drill bit 101 disposed below the driving motor 100, an extension drill string 103 and a drill rod 102 are disposed below the driving motor 100, the bottom end of the drill rod 102 is fixedly connected with the top of the drill bit 101, the top end of the drill rod 102 is movably contacted with the bottom end of the extension drill string 103, a base 1 is disposed below the driving motor 100, a guide sleeve 104 is embedded at the top of the base 1, a first round hole is provided at the top of the base 1, the inner wall of the first round hole is fixedly connected with the outer side of the guide sleeve 104, a first threaded hole is provided on the right inner wall of the guide sleeve 104, a T-shaped press screw 105 is disposed in the first threaded hole, the right side of the T-shaped press screw 105 extends to the outside of the guide sleeve 104, the outside of the T-shaped pressing screw 105 is in an annular equidistant fixed connection with a plurality of handle bars, the guide sleeve 104 is movably sleeved on the drill rod 102, a fixed component is arranged between the output shaft of the driving motor 100 and the extension drill string 103 and between the extension drill string 103 and the drill rod 102, the fixed component comprises square clamping blocks 200 fixedly connected with the bottom ends of the output shaft of the driving motor 100 and the output shaft of the extension drill string 103, square clamping grooves 201 are formed in the top ends of the drill rod 102 and the top ends of the extension drill string 103, the square clamping grooves 201 are clamped with the corresponding square clamping blocks 200, a thread groove 203 is formed in the right side of the square clamping blocks 200, T-shaped bolts 204 are sleeved in the thread grooves 203, T-shaped holes 202 are formed in the right side top of the extension drill string 103 and the right side top of the drill rod 102, and internal threads are arranged in the T-shaped holes 202, and the internal threads are in threaded connection with the corresponding T-shaped bolts 204;

The top of the base 1 is fixedly connected with two guide rods 2, the two guide rods 2 are sleeved with the same U-shaped seat 3 in a sliding manner, two sides of the top of the U-shaped seat 3 are respectively provided with a second round hole, the inner wall of each second round hole is in sliding connection with the outer side of the corresponding guide rod 2, the driving motor 100 is fixedly arranged on the inner wall of the bottom of the U-shaped seat 3, the inner wall of the bottom of the U-shaped seat 3 is provided with a third round hole, the output shaft of the driving motor 100 is positioned in the third round hole and is not contacted with the inner wall of the third round hole, the top ends of the two guide rods 2 are fixedly connected with the same circular top plate 5, the top of the circular top plate 5 is fixedly provided with a multi-stage electric telescopic rod 4, the extending end of the multi-stage electric telescopic rod 4 extends to the lower part of the circular top plate 5 and is fixedly connected with the top of the U-shaped seat 3, the top of the base 1 is provided with a reinforcing stable stop mechanism, and the base 1 is also provided with a driving roller containing mechanism matched with the reinforcing stable stop mechanism;

the enhanced stable stop mechanism comprises two support plates 6 fixedly connected to the top of a base 1, two guide rods 2 are positioned between the two support plates 6, the left side of the support plate 6 positioned at the left side of the two support plates 6 is fixedly connected with a U-shaped handle, the top of the support plate 6 is fixedly connected with the bottom of a return-shaped top plate 5, a rectangular groove 7 is formed in the bottom of the support plate 6, two rectangular holes 9 are formed in the top of the base 1, a rectangular rod 8 is sleeved in the rectangular groove 7 in a sliding manner, the bottom end of the rectangular rod 8 extends into the corresponding rectangular hole 9 and is rotatably provided with a rotary table 13, a rotary groove is formed in the bottom end of the rectangular rod 8, a third bearing is fixedly sleeved in the rotary groove, the inner ring of the third bearing is welded and sleeved with the outer side of the corresponding rotary table 13, the bottom of the rotary table 13 is fixedly connected with an auger ground leaf 14, the bottom end of the auger ground leaf 14 extends to the lower side of the base 1, the first screw rod 10 is rotatably arranged between the inner walls of the two sides of the rectangular groove 7, the rectangular rod 8 is sleeved on the corresponding first screw rod 10 in a threaded manner, the inner wall of the top of the rotating groove is provided with a second threaded hole 16, the second threaded hole 16 is in threaded connection with the corresponding first screw rod 10, the top end of the rotary table 13 is fixedly connected with the square rod 15, the first screw rod 10 is slidably sleeved on the square rod 15, the bottom end of the first screw rod 10 is provided with the square groove 17, the inner wall of the square groove 17 is slidably connected with the outer side of the corresponding square rod 15, the top end of the first screw rod 10 extends into the circular top plate 5 and is fixedly connected with the sprocket 11, the inner wall of the top of the rectangular groove 7 is provided with a fourth round hole, the first screw rod 10 is positioned in the corresponding fourth round hole and is not contacted with the inner wall of the fourth round hole, the fourth round hole is used for the first screw rod 10 to pass upwards, a first bearing is fixedly connected between the inner walls of the two sides of the rectangular groove 7, two fifth round holes are formed in the inner wall of the bottom of the square top plate 5, a second bearing is fixedly sleeved in the fifth round holes, the inner ring of the second bearing and the inner ring of the first bearing are welded and sleeved on the outer sides of the corresponding first screw rods 10, the two chain wheels 11 are connected with the same chain 37 in a transmission mode, the extending end of the multistage electric telescopic rod 4 is located at the rear side of the chain 37, a first motor 12 is fixedly arranged on one side of the top of the square top plate 5, the bottom end of an output shaft of the first motor 12 extends into the square top plate 5 and is fixedly connected with the top of the chain wheel 11 located on the left side of the two chain wheels 11.

In this embodiment, the same-drive roller storage mechanism comprises two rectangular storage grooves 19 formed at the bottom of the base 1, two rectangular holes 9 are positioned between the two rectangular storage grooves 19, lifting plates 20 are slidably mounted between the inner walls of the two sides of the rectangular storage grooves 19, two T-shaped sliding rails 29 are fixedly connected to the inner walls of the two sides of the rectangular storage grooves 19, two T-shaped sliding grooves with openings at the top and the bottom are formed on the two sides of the lifting plates 20, the T-shaped sliding grooves are slidably connected with the corresponding T-shaped sliding rails 29, two travelling wheels 21 are rotatably mounted at the bottom of the lifting plates 20, the bottoms of the travelling wheels 21 extend to the lower side of the base 1, rectangular boxes 18 with openings at the bottoms are fixedly connected to the bottoms of the sides of the two support plates 6, the sides of the two rectangular boxes 18, which are close to each other, are fixedly connected with vertical rods 22 at the top of the lifting plates 20, the top end of the vertical rod 22 extends into the corresponding rectangular box 18, a rectangular through hole is formed in the top inner wall of the rectangular accommodating groove 19, the inner wall of the rectangular through hole is in sliding connection with the outer side of the corresponding vertical rod 22, the rectangular through hole is arranged to provide the vertical rod 22 to penetrate upwards, four balls 23 are nested in the rectangular shape on the sides, far away from each other, of the two vertical rods 22, the balls 23 are in rolling contact with the inner wall of the side, far away from the supporting plate 6, of the corresponding rectangular box 18, a first rack 24 is embedded on the sides, far away from each other, of the two vertical rods 22, a second rack 28 is embedded on the sides, near to each other, of the two vertical rods 22, a third groove is formed on the sides, near to each other, of the vertical rods 22 and the corresponding rectangular rods 8, the outer sides of the first rack 24 and the second rack 28 are fixedly connected with the inner wall of the corresponding third groove respectively, a gear 27 is rotatably arranged between the inner wall of the front side and the inner wall of the rear side of the rectangular box 18, the fixed axle 26 is fixedly connected between the front side inner wall and the rear side inner wall of the rectangular box 18, the front side of the gear 27 is provided with a sixth round hole, a fourth bearing is fixedly sleeved in the sixth round hole, the inner ring of the fourth bearing is fixedly sleeved on the outer side of the corresponding fixed axle 26, the gear 27 is meshed between the corresponding first rack 24 and the corresponding second rack 28, the perforation 25 is formed in the inner wall of one side, away from each other, of the two rectangular grooves 7, the gear 27 is located in the corresponding perforation 25 and is not contacted with the inner wall of the perforation 25, the design of the embodiment is reasonable, deep drilling can be conducted, the functions of storing and stably parking the travelling wheels 21 can be conveniently and synchronously achieved through single driving, the functions of moving out and stably stopping root taking and removing the travelling wheels 21 can be conveniently and synchronously achieved through single driving, the stability of drilling work is greatly improved, the mode that the single driving is used in a multifunctional mutually matched mode is not required to separately set up driving in addition, the device is integrated, and long-term use benefit is improved.

The embodiment also provides a using method of the geothermal energy power generation geothermal drilling device, which comprises the following steps:

s1: when in use, the device is moved to a detection area through the four travelling wheels 21;

s2: after moving to a detection area, before drilling, the first motor 12 is started in the forward direction, the output shaft of the first motor 12 drives the left chain wheel 11 to rotate, the left chain wheel 11 drives the right chain wheel 11 to rotate through the chain 37, the two chain wheels 11 synchronously rotate and drive the two first screw rods 10 to rotate, the first screw rods 10 drive the rectangular rods 8 to slide downwards in the rectangular grooves 7 when rotating in the corresponding second threaded holes 16, the rectangular rods 8 drive the auger ground leaves 14 to move downwards through the corresponding turntables 13, the turntables 13 drive the corresponding square rods 15 to slide downwards in the square grooves 17, the square rods 15 drive the auger ground leaves 14 to rotate through the corresponding square grooves 17 when the first screw rods 10 rotate, and at the moment, the auger ground leaves 14 are in a downward moving and rotating state;

s3: the rectangular rod 8 in the S2 also drives the corresponding first rack 24 to move downwards when moving downwards, the first rack 24 drives the gear 27 meshed with the first rack 24 to rotate on the fixed shaft 26, the gear 27 drives the second rack 28 meshed with the gear 27 to move upwards, the second rack 28 drives the corresponding vertical rod 22 to move upwards, the vertical rod 22 drives the corresponding ball 23 to roll on the inner wall of the rectangular box 18, the vertical rod 22 drives the corresponding lifting plate 20 to slide upwards on the T-shaped sliding rail 29, the vertical rod 22 drives the corresponding two travelling wheels 21 to gradually move upwards and be accommodated in the rectangular accommodating groove 19, four travelling wheels 21 are accommodated, simultaneously the spiral ground leaves 14 in a downward moving and rotating state can rotate downwards and be drilled into the ground, the functions of taking root and fixing are achieved, the device and the ground are taken root and fixed while the travelling wheels 21 are accommodated, at the moment, the base 1 is matched with the two spiral ground leaves 14 to realize supporting at the bottom, the root and fixed time, the supporting area is increased, the parking stability is improved, when the travelling wheels 21 need to be moved out, the first motor 12 is started reversely, the first travelling wheels 21 are driven to move upwards and the spiral ground and the travelling wheels 21 are continuously moved downwards in a single direction, and the travelling wheels can be moved downwards and the travelling wheels are rotated and can be stably and rotated downwards, and the travelling wheels are moved downwards and are rotated and can be stably and rotated upwards and moved upwards and reversely, and the travelling wheels are accommodated and rotated and move upwards and downwards and are continuously;

S4: when drilling is performed, the driving motor 100 is started, the driving motor 100 drives the extension drill stem 103 to rotate through the square clamping blocks 200 on the corresponding fixing components, the extension drill stem 103 drives the drill stem 102 to rotate through the square clamping blocks 200 on the corresponding fixing components, the drill stem 102 drives the drill bit 101 to rotate, the multistage electric telescopic rods 4 are started in the forward direction, the extending ends of the multistage electric telescopic rods 4 drive the U-shaped seats 3 to slide downwards on the two guide rods 2, the U-shaped seats 3 sequentially drive the drill stem 102 to move downwards in the guide sleeves 104 through the driving motor 100 and the extension drill stem 103, the guide sleeves 104 play a role in guiding the drill stem 102 downwards vertically, the drill stem 102 drives the drill bit 101 to move downwards, at the moment, the drill bit 101 is in a rotating and downward moving state, and the rotating and downward moving drill bit 101 gradually drills the ground downwards, so that drilling is realized;

s6: when the deep drilling is needed, after the U-shaped seat 3 moves down to a low position, the extension drill string 103 moves down into the guide sleeve 104, the T-shaped pressing screw 105 is positively rotated to left shift and press and lock the extension drill string 103, and the extension drill string 103 is detached from the bottom end of the output shaft of the driving motor 100 through the fixing assembly, and the specific detachment mode is as follows: reverse rotation of T-shaped bolt 204 on extension drill string 103 makes it separate with corresponding screw thread groove 203 to the right, remove the restriction to square fixture block 200 on driving motor 100, reverse start multistage electric telescopic handle 4 makes it drive U-shaped seat 3 upwards move this moment, U-shaped seat 3 drives driving motor 100 upwards move, driving motor 100 drives corresponding square fixture block 200 upwards and separates with square fixture groove 201, then utilize fixed subassembly to fix outside extension drill string 103 with the specification between the top of corresponding extension drill string 103 and driving motor 100's output shaft bottom, the specific mode of fixing is: at this time, the external extension drill string 103 with the same specification is adopted, the square clamping blocks 200 at the bottom of the extension drill string 103 with the same specification are inserted into the square clamping grooves 201, then the square clamping grooves 201 at the top end of the extension drill string 103 with the same specification are clamped and sleeved on the square clamping blocks 200 on the driving motor 100, and the T-shaped bolts 204 are used for locking the Fang Kakuai on the driving motor 100, so that the downward drilling operation can be performed again, and deep drilling is realized.

Example two

Referring to fig. 5 to 7, this embodiment differs from the first embodiment in that: the left support plate 6 is also provided with a bit falling preventing mechanism matched with the enhanced stable stopping mechanism, the bit falling preventing mechanism comprises a rectangular tube 31 fixed on the right side of the left support plate 6, the left end of the rectangular tube 31 is provided with a blocking structure, the right sides of the rectangular rods 8 positioned on the left side in the two rectangular rods 8 are fixedly connected with limiting blocks 30, the right sides of the limiting blocks 30 extend out of corresponding rectangular grooves 7, rectangular anti-falling stop blocks 32 are sleeved in the rectangular tube 31 in a sliding manner, the right sides of the rectangular anti-falling stop blocks 32 extend out of the rectangular tube 31, the rectangular anti-falling stop blocks 32 are positioned below the U-shaped seat 3 and matched with the U-shaped seat 3, a first groove is formed in the left side of the rectangular anti-falling stop blocks 32, a spring 33 is fixedly connected between the right inner wall of the first groove and the left inner wall of the rectangular tube 31, a second groove 34 with an opening bottom is formed in the left end of the rectangular tube 31, the fixed pulley 35 is rotatably arranged on the top inner wall of the second groove 34, the soft wire rope 36 is fixedly connected on the right inner wall of the first groove, one end of the soft wire rope 36 bypasses the top of the fixed pulley 35 and is fixedly connected with the top of the limiting block 30, wherein a limiting hole is formed on the right inner wall of the rectangular groove 7 positioned at the left side in the two rectangular grooves 7, the front inner wall and the rear inner wall of the limiting hole are respectively and slidably connected with the front side and the rear side of the limiting block 30, the design of the embodiment is reasonable, the deep drilling can be carried out, the functions of storing, taking root and stably parking and releasing the anti-falling restriction on the travelling wheel 21 are synchronously realized by single driving, the functions of moving out, taking root stably stopping and preventing the drill bit in the travelling process are synchronously realized by single driving, the stability of drilling work is greatly improved, and the mode of multi-functional mutually matched use is realized by single driving, the driving is not required to be separately arranged, so that the integrated device is more integrated and concentrated, and the long-term use benefit is improved.

s1: when the device is used, the device is moved to a detection area through the four travelling wheels 21, and in the moving process, the rectangular anti-falling stop block 32 is positioned below the U-shaped seat 3, the rectangular anti-falling stop block 32 shields and limits the U-shaped seat 3, the U-shaped seat 3 is prevented from falling downwards due to vibration and other factors in the moving process, the U-shaped seat 3 sequentially passes through the driving motor 100, the extension drill string 103 and the drill rod 102 to limit the drill bit 101, the drill bit 101 is prevented from falling and colliding to the ground in the moving process to cause damage, and anti-falling protection of the drill bit 101 in the moving process is realized;

S3: the rectangular rod 8 in the S2 also drives the corresponding first rack 24 to move downwards when moving downwards, the first rack 24 drives the gear 27 meshed with the first rack 24 to rotate on the fixed shaft 26, the gear 27 drives the second rack 28 meshed with the gear 27 to move upwards, the second rack 28 drives the corresponding vertical rod 22 to move upwards, the vertical rod 22 drives the corresponding ball 23 to roll on the inner wall of the rectangular box 18, the vertical rod 22 drives the corresponding lifting plate 20 to slide upwards on the T-shaped sliding rail 29, the vertical rod 22 drives the corresponding two travelling wheels 21 to gradually move upwards and be accommodated in the rectangular accommodating groove 19, four travelling wheels 21 are accommodated, simultaneously the travelling wheels 21 in a downward moving and rotating state can be rotated downwards to drill into the ground, the effect of root taking fixation is achieved, the device and the ground taking fixation are achieved while the travelling wheels 21 are accommodated, at the moment, the base 1 is matched with the two travelling wheels 14 to realize supporting at the bottom, the root taking fixation is also increased in supporting area, the parking stability is improved, when the travelling wheels 21 need to be moved out, the travelling wheels 21 are required to be moved out, the first motor 12 is started reversely, the travelling wheels 21 are moved reversely, the travelling wheels 12 are moved reversely and the travelling wheels are moved reversely, and the travelling wheels 21 are moved reversely and the travelling wheels are moved upwards and the travelling wheels are turned upwards and turned downwards and can be moved downwards and turned upwards and are turned upwards and the travelling wheels are carried out;

S4: when the rectangular rod 8 in the S2 moves downwards, the rectangular rod 8 on the left side drives the limiting block 30 to move downwards when moving downwards, the limiting block 30 drives the soft steel wire rope 36 to slide downwards at the top of the fixed pulley 35, the soft steel wire rope 36 drives the rectangular anti-falling stop block 32 to slide leftwards in the rectangular tube 31 and compress the spring 33, the rectangular anti-falling stop block 32 is staggered leftwards from the bottom of the U-shaped seat 3, the limitation on the U-shaped seat 3 and the drill bit 101 is removed, the synchronous removal of the limitation on the drill bit 101 is realized when the drill bit is stably parked, similarly, when the subsequent work is completed and moves again, the first motor 12 is reversely started, the movement direction of the driving motor 12 is completely opposite to that of the forward starting, at the moment, the rectangular rod 8 is converted to move upwards and drives the limiting block 30 to move upwards, the tension on the soft steel wire rope 36 is relaxed upwards, at the moment, the elastic force of the spring 33 in a compressed state drives the rectangular anti-falling stop block 32 to move rightwards and reset, the limiting function can be realized again automatically when moving, and the functions of moving out, stopping and preventing the drill bit are realized synchronously when single driving are realized;

s5: when drilling is performed, the driving motor 100 is started, the driving motor 100 drives the extension drill stem 103 to rotate through the square clamping blocks 200 on the corresponding fixing components, the extension drill stem 103 drives the drill stem 102 to rotate through the square clamping blocks 200 on the corresponding fixing components, the drill stem 102 drives the drill bit 101 to rotate, the multistage electric telescopic rods 4 are started in the forward direction, the extending ends of the multistage electric telescopic rods 4 drive the U-shaped seats 3 to slide downwards on the two guide rods 2, the U-shaped seats 3 sequentially drive the drill stem 102 to move downwards in the guide sleeves 104 through the driving motor 100 and the extension drill stem 103, the guide sleeves 104 play a role in guiding the drill stem 102 downwards vertically, the drill stem 102 drives the drill bit 101 to move downwards, at the moment, the drill bit 101 is in a rotating and downward moving state, and the rotating and downward moving drill bit 101 gradually drills the ground downwards, so that drilling is realized;

The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.

Claims

1. The geothermal energy power generation geothermal drilling device comprises a driving motor (100) and a drill bit (101) arranged below the driving motor (100), and is characterized in that an extension drill string (103) and a drill rod (102) are arranged below the driving motor (100), the bottom end of the drill rod (102) is fixedly connected with the top of the drill bit (101), the top end of the drill rod (102) is movably contacted with the bottom end of the extension drill string (103), a base (1) is arranged below the driving motor (100), a guide sleeve (104) is embedded in the top of the base (1), the guide sleeve (104) is movably sleeved on the drill rod (102), and a fixing component is arranged between an output shaft of the driving motor (100) and the extension drill string (103) and between the extension drill string (103) and the drill rod (102);

the top of the base (1) is fixedly connected with two guide rods (2), the two guide rods (2) are sleeved with the same U-shaped seat (3) in a sliding manner, the driving motor (100) is fixedly arranged on the inner wall of the bottom of the U-shaped seat (3), the top ends of the two guide rods (2) are fixedly connected with the same return-shaped top plate (5), the top of the return-shaped top plate (5) is fixedly provided with a multi-stage electric telescopic rod (4), the extending end of the multi-stage electric telescopic rod (4) extends to the lower part of the return-shaped top plate (5) and is fixedly connected with the top of the U-shaped seat (3), the top of the base (1) is provided with an enhanced stable stop mechanism, and the base (1) is also provided with a same-drive roller containing mechanism matched with the enhanced stable stop mechanism;

The reinforced stable stop mechanism comprises two support plates (6) fixedly connected to the top of a base (1), two guide rods (2) are positioned between the two support plates (6), the left side of the support plate (6) positioned on the left side in the two support plates (6) is fixedly connected with a U-shaped handle, the top of the support plate (6) is fixedly connected with the bottom of a return-shaped top plate (5), a rectangular groove (7) is formed in the bottom of the support plate (6), two rectangular holes (9) are formed in the top of the base (1), a rectangular rod (8) is sleeved in the rectangular groove (7) in a sliding manner, the bottom end of the rectangular rod (8) extends into the corresponding rectangular hole (9) and is rotatably provided with a rotary table (13), the bottom of the rotary table (13) is fixedly connected with a spiral ground blade (14), the bottom end of the spiral ground blade (14) extends to the lower side of the base (1), a first screw (10) is rotatably arranged between the inner walls on two sides of the rectangular groove (7), the rectangular rod (8) is sleeved on the corresponding first screw (10), the top end of the rotary table (13) is fixedly connected with a first screw (15) and the first screw (10) is connected with a chain wheel (11) in the same direction, the first screw (11), the extending end of the multistage electric telescopic rod (4) is positioned at the rear side of a chain (37), a first motor (12) is fixedly arranged at one side of the top of the square top plate (5), and the bottom end of an output shaft of the first motor (12) extends into the square top plate (5) and is fixedly connected with the top of the left chain wheel (11) of the two chain wheels (11);

The same-drive roller containing mechanism comprises two rectangular containing grooves (19) formed in the bottom of the base (1), two rectangular holes (9) are formed between the two rectangular containing grooves (19), lifting plates (20) are slidably mounted between the inner walls of the two sides of the rectangular containing grooves (19), two travelling wheels (21) are rotatably mounted at the bottom of the lifting plates (20), the bottoms of the travelling wheels (21) extend to the lower side of the base (1), rectangular boxes (18) with openings are fixedly connected to the bottoms of one sides of the two supporting plates (6) which are far away from each other, one sides of the two rectangular boxes (18) which are close to each other are all provided with openings, vertical rods (22) are fixedly connected to the tops of the lifting plates (20), the tops of the vertical rods (22) extend into the corresponding rectangular boxes (18), four balls (23) are in rectangular nesting contact with one side inner wall of the corresponding rectangular box (18) which is far away from each other, first racks (24) are embedded on one side of the two rectangular rods (8) which is far away from each other, racks (28) are embedded on one side of the two sides of the corresponding rectangular boxes (18) which are arranged, a rack (28) which is rotatably embedded on one side of the two side of the corresponding rectangular boxes (18) which is close to each other, the gear (27) is meshed between the corresponding first rack (24) and the corresponding second rack (28), the inner walls of one sides of the two rectangular grooves (7) which are far away from each other are provided with perforations (25), and the gear (27) is positioned in the corresponding perforations (25) and is not contacted with the inner walls of the perforations (25);

The left end of the rectangular pipe (31) is provided with a plugging structure, the right side of the rectangular rod (8) positioned at the left side of the two rectangular rods (8) is fixedly connected with a limiting block (30), the right side of the limiting block (30) extends out of a corresponding rectangular groove (7), a rectangular anti-falling stop block (32) is sleeved in the rectangular pipe (31) in a sliding manner, the right side of the rectangular anti-falling stop block (32) extends out of the rectangular pipe (31), the rectangular anti-falling stop block (32) is positioned below the U-shaped seat (3) and is matched with the U-shaped seat (3), a first groove is formed in the left side of the rectangular anti-falling stop block (32), a spring (33) is fixedly connected between the right side inner wall of the rectangular rod (8) positioned at the left side of the two rectangular rods (8), a second groove (34) is formed in the left end of the rectangular pipe (31), and is fixedly connected with a steel wire rope (35) at the top of the second groove (34), and the second groove (34) is formed in the left end of the rectangular pipe (31) and is fixedly connected with the top of the steel wire rope (35), and limiting holes are formed in the right inner walls of the rectangular grooves (7) positioned on the left side in the two rectangular grooves (7), and the front inner walls and the rear inner walls of the limiting holes are respectively connected with the front side and the rear side of the limiting block (30) in a sliding manner.

2. The geothermal energy power generation geothermal drilling device according to claim 1, wherein the top of the base (1) is provided with a first round hole, the inner wall of the first round hole is fixedly connected with the outer side of the guide sleeve (104), the right side inner wall of the guide sleeve (104) is provided with a first threaded hole, a T-shaped pressing screw (105) is sleeved in the first threaded hole, the right side of the T-shaped pressing screw (105) extends out of the guide sleeve (104), the outer side of the T-shaped pressing screw (105) is provided with a plurality of handle bars in an annular equidistant fixed connection mode, the two sides of the top of the U-shaped seat (3) are provided with second round holes, the inner wall of each second round hole is in sliding connection with the outer side of the corresponding guide rod (2), the bottom inner wall of the U-shaped seat (3) is provided with a third round hole, and the output shaft of the driving motor (100) is located in the third round hole and is not in contact with the inner wall of the third round hole.

3. The geothermal energy power generation geothermal drilling device according to claim 1, wherein a fourth round hole is formed in the top inner wall of the rectangular groove (7), the first screw (10) is located in the corresponding fourth round hole and is not in contact with the inner wall of the fourth round hole, a first bearing is fixedly connected between the inner walls of the two sides of the rectangular groove (7), two fifth round holes are formed in the inner wall of the bottom of the rectangular groove (7), a second bearing is fixedly sleeved in the fifth round hole, the inner ring of the second bearing and the inner ring of the first bearing are both in welding sleeve with the outer side of the corresponding first screw (10), a square groove (17) is formed in the bottom end of the first screw (10), and the inner wall of the square groove (17) is in sliding connection with the outer side of the corresponding square rod (15).

4. Geothermal energy power generation geothermal drilling device according to claim 1, characterized in that the bottom end of the rectangular rod (8) is provided with a rotating groove, a third bearing is fixedly sleeved in the rotating groove, the inner ring of the third bearing is welded and sleeved with the outer side of the corresponding turntable (13), the inner wall of the top of the rotating groove is provided with a second threaded hole (16), and the second threaded hole (16) is in threaded connection with the corresponding first screw (10).

5. Geothermal energy electricity generation is with geothermal drilling device according to claim 1, characterized in that, two T shape slide rails (29) are all fixedly connected with on the both sides inner wall of rectangle storage tank (19), two T shape spouts that top and bottom set up for the opening are all seted up to the both sides of lifter plate (20), and T shape spout and corresponding T shape slide rail (29) sliding connection, rectangular through-hole has been seted up on the top inner wall of rectangle storage tank (19), and rectangular through-hole's inner wall and the outside sliding connection of montant (22) that corresponds.

6. Geothermal energy electricity generation is with geothermal drilling device according to claim 1, characterized in that, fixedly connected with fixed axle (26) between the front side inner wall and the rear side inner wall of rectangle box (18), the front side of gear (27) is equipped with the sixth round hole, sixth round hole internal fixation cover is equipped with the fourth bearing, the fixed suit in the outside of the fixed axle (26) that corresponds of inner circle and fourth bearing, the third recess has all been seted up to the side that montant (22) and corresponding rectangle pole (8) are close to each other, the outside of first rack (24) and the outside of second rack (28) respectively with the inner wall fixed connection of corresponding third recess.

7. A method of using a geothermal drilling rig for geothermal energy power generation according to any of claims 1-6 comprising the steps of:

s1: when the device is used, the device is moved to a detection area through the four travelling wheels (21), in the moving process, the rectangular anti-falling stop block (32) is positioned below the U-shaped seat (3), the rectangular anti-falling stop block (32) shields and limits the U-shaped seat (3), the phenomenon that the U-shaped seat (3) falls downwards due to vibration in the moving process is avoided, and the U-shaped seat (3) sequentially passes through the driving motor (100), the extension drill string (103) and the drill rod (102) to limit the drill bit (101) from falling;

s2: after moving to a detection area, before drilling, a first motor (12) is positively started, an output shaft of the first motor (12) drives a left chain wheel (11) to rotate, the left chain wheel (11) drives a right chain wheel (11) to rotate through a chain (37), two chain wheels (11) synchronously rotate and drive two first screw rods (10) to rotate, when the first screw rods (10) rotate in corresponding second threaded holes (16), the rectangular rods (8) are driven to slide downwards in the rectangular grooves (7), the rectangular rods (8) drive the auger ground blades (14) to move downwards through corresponding turntables (13), the turntables (13) drive corresponding square rods (15) to slide downwards in the square grooves (17), and when the first screw rods (10) rotate, the square rods (15) drive the auger ground blades (14) to rotate through corresponding turntables (13), and at the moment, the auger ground blades (14) are in a downward moving and rotating state;

S3: the rectangular rod (8) in the S2 also drives the corresponding first rack (24) to move downwards when moving downwards, the first rack (24) drives the gear (27) meshed with the first rack to rotate on the fixed shaft (26), the gear (27) drives the second rack (28) meshed with the second rack to move upwards, the second rack (28) drives the corresponding vertical rod (22) to move upwards, the vertical rod (22) drives the corresponding ball (23) to roll on the inner wall of the rectangular box (18), the vertical rod (22) drives the corresponding lifting plate (20) to slide upwards on the T-shaped sliding rail (29), the vertical rod (22) drives the corresponding two travelling wheels (21) to gradually move upwards and be accommodated in the rectangular accommodating groove (19), and simultaneously the spiral drill ground blade (14) in a downward moving and rotating state can rotate downwards to drill into the ground for root fixation;

s4: when the rectangular rod (8) in the S2 moves downwards, the left rectangular rod (8) also drives the limiting block (30) to move downwards when moving downwards, the limiting block (30) drives the soft steel wire rope (36) to slide downwards at the top of the fixed pulley (35), the soft steel wire rope (36) drives the rectangular anti-falling stop block (32) to slide leftwards in the rectangular pipe (31) and compress the spring (33), and the rectangular anti-falling stop block (32) is staggered leftwards with the bottom of the U-shaped seat (3) to release the limitation on the U-shaped seat (3) and the drill bit (101);

S5: when drilling, the driving motor (100) is started, the driving motor (100) drives the extension drill stem (103) to rotate through the corresponding fixing assembly, the extension drill stem (103) drives the drill stem (102) to rotate through the corresponding fixing assembly, the drill stem (102) drives the drill bit (101) to rotate, the multistage electric telescopic rod (4) is started positively, the extending end of the multistage electric telescopic rod (4) drives the U-shaped seat (3) to slide downwards on the two guide rods (2), the U-shaped seat (3) drives the drill stem (102) to move downwards in the guide sleeve (104) sequentially through the driving motor (100) and the extension drill stem (103), the guide sleeve (104) plays a role in guiding the drill stem (102) downwards vertically, the drill stem (102) drives the drill bit (101) to move downwards, at the moment, the drill bit (101) is in a rotating and downward moving state, and the rotating and downward moving drill bit (101) gradually drills the ground downwards;

s6: when the deep drilling is needed, after the U-shaped seat (3) moves downwards to a low position, the extension drill string (103) moves downwards to the inside of the guide sleeve (104), the T-shaped pressing screw rod (105) rotates positively to enable the T-shaped pressing screw rod to move leftwards and press and lock the extension drill string (103), the extension drill string (103) is detached from the bottom end of the output shaft of the driving motor (100) through the fixing assembly, and then the extension drill string (103) with the same specification outside is fixed between the top end of the corresponding extension drill string (103) and the bottom end of the output shaft of the driving motor (100) through the fixing assembly, so that downward drilling operation is performed again.