CN112647853A - Combined type hand-operated twist drill pulling tool and drilling pulling method thereof - Google Patents

Combined type hand-operated twist drill pulling tool and drilling pulling method thereof Download PDF

Info

Publication number
CN112647853A
CN112647853A CN202011604699.4A CN202011604699A CN112647853A CN 112647853 A CN112647853 A CN 112647853A CN 202011604699 A CN202011604699 A CN 202011604699A CN 112647853 A CN112647853 A CN 112647853A
Authority
CN
China
Prior art keywords
drill
handle
steel
steel pipe
clamping structure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202011604699.4A
Other languages
Chinese (zh)
Other versions
CN112647853B (en
Inventor
段谟东
许思龙
程铁洪
蔡冻
黄磊
张久龙
王海飞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PowerChina Jiangxi Electric Power Engineering Co Ltd
Original Assignee
PowerChina Jiangxi Electric Power Engineering Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by PowerChina Jiangxi Electric Power Engineering Co Ltd filed Critical PowerChina Jiangxi Electric Power Engineering Co Ltd
Priority to CN202011604699.4A priority Critical patent/CN112647853B/en
Publication of CN112647853A publication Critical patent/CN112647853A/en
Application granted granted Critical
Publication of CN112647853B publication Critical patent/CN112647853B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B11/00Other drilling tools
    • E21B11/005Hand operated drilling tools
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B12/00Accessories for drilling tools
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02Couplings; joints
    • E21B17/04Couplings; joints between rod or the like and bit or between rod and rod or the like
    • E21B17/042Threaded

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)

Abstract

A combined hand-operated twist drill pulling tool and a drilling pulling method thereof are provided, the combined hand-operated twist drill pulling tool at least comprises a detachable base, a threaded hollow steel pipe, a fixed steel nail, a clamping structure control switch handle, a steel handle, a drill rod and a twist drill; the threaded hollow steel pipe is connected with the steel handle through a fixed steel nail, the threaded hollow steel pipe rotates up and down around the steel handle by taking the steel nail as a circle center, and the detachable base is in threaded connection with the threaded hollow steel pipe; the middle part of the steel handle is provided with a groove, the upper end of the drill rod is clamped and arranged at the groove through a clamping structure, and a clamping structure control switch handle is used for controlling the clamping structure to be screwed and loosened; the lower end of the drill rod is welded and fixed with the twist drill. The invention combines the drilling and pulling processes, solves the problem that the upper rotating device of the drill rod needs to be disassembled when the drill rod is added each time in the traditional twist drill, reduces the drilling period, saves a large amount of manpower, and obviously improves the drilling efficiency and quality.

Description

Combined type hand-operated twist drill pulling tool and drilling pulling method thereof
Technical Field
The invention relates to the technical field of geotechnical engineering investigation and drilling of power transmission lines, in particular to a combined type hand-operated twist drill pulling tool and a drilling pulling method thereof.
Background
The geotechnical engineering investigation of the power transmission line is an important component of the investigation in the power industry, wherein the stability of a tower of the power transmission line is a basic condition for ensuring the normal operation of the overhead power transmission line, factors such as the landform and the landscape where the tower is preset, the type of the tower, the required foundation depth, the drilling cost and the like are comprehensively considered, and the most widely used drilling tool is still the most original hand-operated twist drill in the geotechnical engineering investigation of the power transmission line at present.
In actual drilling operation, along with the increase of drilling depth and the change of underground soil layer strength, sometimes after a twist drill bit carries soil, the drill rod is difficult to pull up, sometimes even 3-4 people cannot pull up, the drill rod has to be rotated in the opposite direction, and in the drilling process, when the drill rod needs to be increased, the upper rotating structure needs to be disassembled, and then the drill rod is assembled. Therefore, the drilling period is prolonged, a large amount of manpower is consumed, and after the soil turns reversely, the soil structure is seriously disturbed, so that field workers can misjudge the soil property, and the provided data is deviated.
Disclosure of Invention
The invention aims to solve the technical problem that the existing hand-operated twist drill is difficult to pull in the drilling process, and provides a combined hand-operated twist drill pulling tool and a drilling pulling method thereof.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a combined hand-operated twist drill pulling tool at least comprises a detachable base, a threaded hollow steel pipe, a fixed steel nail, a clamping structure control switch handle, a steel handle, a drill rod and a twist drill; the threaded hollow steel pipe is hinged with the steel handle through a fixed steel nail, the threaded hollow steel pipe rotates up and down around the steel handle by taking the steel nail as a circle center, and the detachable base is in threaded connection with the threaded hollow steel pipe; the middle front part of the steel handle is provided with a groove, the upper end of the drill rod is clamped and arranged at the groove of the middle front part of the steel handle through a clamping structure, and a clamping structure control switch handle is used for controlling the clamping structure to be screwed and loosened; the lower end of the drill rod is fixed with the twist drill through welding.
According to the scheme, the threaded hollow steel pipe is horizontally placed in the earth taking process of the tool drilling, the threaded hollow steel pipe and the steel handle are both used as handles (the functions are consistent), and field workers hold the steel handles on two sides and the threaded hollow steel pipe to rotate; when the tool is drilled to a certain depth and needs to be pulled out, the detachable base is connected with the threaded hollow steel pipe, and the detachable base is pulled out by rotating the threaded hollow steel pipe to be perpendicular to the ground and taking the detachable base as a fulcrum.
According to above-mentioned scheme, still including supporting drilling rod, along with boring the process deepening, when the drilling rod is high more than the ground when not enough, directly be connected supporting drilling rod with the drilling rod through the screw thread (solved the problem that traditional twist drill need dismantle drilling rod upper portion rotary device when adding the drilling rod at present stage every time).
According to the scheme, the length of the steel handle is 4-6 times of the distance between the steel nail at the front end of the handle and the clamping structure, namely 5 times of labor is saved.
According to the scheme, the device also comprises a hollow sleeve, and the hollow sleeve is inserted into the steel handle and used for increasing the length of the force arm.
The initial calculation shows that the pulling force basically meets the requirements of field operation, but in consideration of some special conditions, a hollow sleeve is configured, and the steel handle can be designed into a pulling structure to adjust the length of the force arm. Through the design of the clamping structure, the device has the function of continuous pulling.
The invention also provides a drilling and pulling method of the combined type hand-operated twist drill pulling tool, which comprises the following steps:
1) in the drilling and soil taking process, the threaded hollow steel pipe is placed horizontally, the threaded hollow steel pipe and the steel handles are both used as handles, field workers hold the steel handles on two sides and the threaded hollow steel pipe to rotate, and a drill rod drives a twist drill to rotate for drilling; when the height above the ground of the drill rod is not enough, the matched drill rod is directly connected with the drill rod through a screw thread;
2) when the drill bit needs to be pulled out after drilling to a certain depth, the threaded hollow steel pipe is rotated to be vertical to the ground by taking the fixed steel nail as a circle center, the threaded hollow steel pipe is connected with the detachable base, and the detachable base is used as a fulcrum to be pulled out;
3) in the pulling process, the switch handle is controlled to tightly engage the clamping structure and the drill rod by controlling the clamping structure, and after the adjustment is finished, a field operator lifts upwards through the steel handle to pull;
4) after the drill bit at the bottom of the pull-out hole is loosened, the clamping structure is controlled to control the switch handle to loosen the clamping structure, and the drill rod is manually pulled out (the pull-out speed is increased); if the drill bit is loosened after the bottom of the hole is pulled up, the manual pulling up is still difficult, the clamping structure can be readjusted to control the switch handle, and the continuous pulling up is completed.
According to the scheme, in the step 3), when the pulling force is insufficient due to some special conditions, a hollow sleeve is inserted into the steel handle, and the length of the force arm is adjusted.
Compared with the prior art, the invention has the beneficial effects that:
1. the hand-operated twist drill drilling and pulling processes are combined for use, the combined tool has the functions of drilling and continuous pulling, soil can be taken for drilling, whether the continuous pulling function is required or not can be selected by combining with the actual soil layer condition, the drilling period is shortened, a large amount of manpower is saved, the drilling efficiency and the drilling quality can be obviously improved, and the tool is simple to operate and convenient to carry and has a better market application prospect;
2. the drilling process still selects a static pressure rotation method of the traditional twist drill, the pulling process occludes the drill rod through the clamping structure and utilizes the lever principle to pull, along with the deepening of the drilling process, when the height of the drill rod above the ground is not enough, the matched drill rod can be directly connected with the drill rod, and the problem that the upper rotating device of the drill rod needs to be detached when the drill rod is added to the traditional twist drill at the current stage every time is solved.
Drawings
FIG. 1 is a schematic view of a drilling process of a combined hand twist drill extraction tool according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a combined type hand twist drill extraction tool in the extraction process according to an embodiment of the present invention;
in the figure, 1-a detachable base, 2-a threaded hollow steel pipe, 3-a fixed steel nail, 4-a clamping structure, 5-a clamping structure control switch handle, 6-a steel handle, 7-a hollow sleeve, 8-a drill rod, 9-a twist drill and 10-a matched drill rod.
Detailed Description
The technical scheme of the invention is described in detail in the following with reference to the attached drawings and examples.
Referring to fig. 1-2, the combined hand twist drill pulling tool comprises a detachable base 1, a threaded hollow steel pipe 2, a fixed steel nail 3, a clamping structure 4, a clamping structure control switch handle 5, a steel handle 6, a hollow sleeve 7, a drill rod 8, a twist drill 9 and a matched drill rod 10; the threaded hollow steel pipe 2 is connected with a steel handle 6 through a fixed steel nail 3, the threaded hollow steel pipe 2 can rotate up and down around the steel handle 6 by taking the steel nail 3 as a circle center, the detachable base 1 is in threaded connection with the threaded hollow steel pipe 2, the detachable base 1 is connected with the hollow steel pipe 2 when pulling is needed, the threaded hollow steel pipe 2 is perpendicular to the ground through rotation, and the detachable base 1 is used as a fulcrum to pull; the middle front part of the steel handle 6 is provided with a groove for connecting the clamping structure 4, the upper end of the drill rod 8 is clamped and arranged at the groove of the middle front part of the steel handle 6 through the clamping structure 4, and the clamping structure control switch handle 5 is used for controlling the clamping structure 4 to be screwed and loosened; the hollow sleeve 7 can be inserted into a steel handle 6 and is used for increasing the length of the force arm if necessary; the lower end of the drill rod 8 is fixed with the twist drill 9 by welding, and the matched drill rod 10 is connected with the drill rod 8 by screw threads.
According to actual requirements, the steel handle 6 can be designed into a drawing structure, and the length of the force arm can be adjusted.
According to actual requirements, the hollow steel tube 2 can be designed into a multi-section pulling mode and fixed by bolts, and the height of the composite tool can be adjusted.
The drilling and pulling method of the combined type hand-operated twist drill pulling tool provided by the embodiment of the invention specifically comprises the following steps:
1) in the drilling and soil taking process, the threaded hollow steel pipe 2 is placed horizontally to achieve the same function as the steel handle 6, the two sides of the handle can be held by hands to rotate, and the drill rod 8 drives the twist drill 9 to rotate for drilling; along with the deepening of the drilling process of the drill rod 8, when the height of the drill rod 8 above the ground is not enough, the matched drill rod 10 can be directly connected with the drill rod 8 through a screw thread, and the problem that a rotating device at the upper part of the drill rod needs to be disassembled when the drill rod is added to the traditional twist drill at each time at the present stage is solved;
2) when the drill bit needs to be pulled out after drilling to a certain depth, the threaded hollow steel pipe 2 is rotated to be vertical to the ground by taking the fixed steel nail 3 as a circle center, the threaded hollow steel pipe 2 is connected with the detachable base 1, and the detachable base 1 is used as a fulcrum to be pulled out;
3) in the pulling process, the clamping structure 4 and the drill rod 8 are tightly occluded by controlling the clamping structure control switch handle 5, after the adjustment is finished, a field operator lifts upwards through the steel handle 6 to pull, the length of the steel handle 6 is designed to be about 5 times of the distance between the steel nail 3 at the front end of the handle and the clamping structure 4 at present, namely 5 times of labor is saved, the pulling force can basically meet the requirements of field operation through preliminary calculation, but a hollow sleeve 7 is configured in consideration of some special conditions, the steel handle 6 can also be designed into a pulling structure to adjust the length of the force arm, and the equipment has the continuous pulling function through the design of the clamping structure;
4) after the drill bit at the bottom of the pulling hole is loosened, the clamping structure can be controlled to control the switch handle 5 to loosen the clamping structure 4, the drill rod 8 is manually lifted, and the pulling rate is increased; if the drill bit is loosened after the bottom of the hole is pulled up and pulled out, the manual pulling up and pulling out is still difficult, the clamping structure can be readjusted to control the switch handle 5, the operation is repeated, and the continuous pulling up and pulling out is carried out until one-time operation is completed.
The combined tool has the functions of drilling and continuous pulling, and solves the problem that a rotating device at the upper part of a drill rod needs to be disassembled when the drill rod is added to the traditional twist drill each time.
It should be understood that the above examples are only for clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. Obvious variations or modifications to the present invention, which would be apparent to a person of ordinary skill in the art, would nevertheless fall within the scope of the present invention.

Claims (7)

1. A combined type hand-operated twist drill pulling tool is characterized by at least comprising a detachable base (1), a threaded hollow steel pipe (2), a fixed steel nail (3), a clamping structure (4), a clamping structure control switch handle (5), a steel handle (6), a drill rod (8) and a twist drill (9); the threaded hollow steel pipe (2) is hinged with the steel handle (6) through the fixed steel nail (3), the threaded hollow steel pipe (2) rotates up and down around the steel handle (6) by taking the fixed steel nail (3) as a circle center, and the detachable base (1) is in threaded connection with the threaded hollow steel pipe (2); a groove is formed in the middle front part of the steel handle (6), the upper end of the drill rod (8) is clamped and arranged in the groove in the middle front part of the steel handle (6) through a clamping structure (4), and a clamping structure control switch handle (5) is used for controlling the clamping structure (4) to be screwed and loosened; the lower end of the drill rod (8) is fixed with the twist drill (9) through welding.
2. The combined type hand twist drill extraction tool according to claim 1, wherein during the drilling and soil taking process of the tool, the threaded hollow steel pipe (2) is placed horizontally, the threaded hollow steel pipe (2) and the steel handle (6) are both used as handles, and field workers hold the steel handle (6) and the threaded hollow steel pipe (2) at two sides to rotate; when the tool is drilled to a certain depth and needs to be pulled out, the detachable base (1) is connected with the hollow steel pipe (2), and the detachable base (1) is taken as a fulcrum to be pulled out by rotating the threaded hollow steel pipe (2) to be vertical to the ground.
3. The composite hand twist drill extraction tool according to claim 1, further comprising a mating drill stem (10), wherein as the drilling process progresses, when the height of the drill stem (8) above the ground is insufficient, the mating drill stem (10) is directly connected to the drill stem (8) by a screw thread.
4. A combined hand twist drill extraction tool according to claim 1, wherein the length of the steel handle (6) is 4-6 times the distance between the fixed steel nails (3) at the front end of the steel handle (6) and the clamping structure (4).
5. A composite hand twist drill extraction tool according to claim 1, further comprising a hollow sleeve (7), the hollow sleeve (7) being inserted into the steel handle (6) for increasing the moment arm length.
6. A drilling and pulling method of the combined type hand-operated twist drill pulling tool as claimed in claims 1 to 5, characterized by comprising the following steps:
1) in the drilling and soil taking process, the threaded hollow steel pipe (2) is placed horizontally, the threaded hollow steel pipe (2) and the steel handles (6) are used as handles, field workers hold the steel handles (6) on two sides and the threaded hollow steel pipe (2) to rotate, and a drill rod (8) drives a twist drill (9) to rotate for drilling; when the height above the ground of the drill rod (8) is not enough, the matched drill rod (10) is directly connected with the drill rod (8) through a screw thread along with the deepening of the drilling process of the drill rod (8);
2) when the drill bit is drilled to a certain depth and needs to be pulled out, the threaded hollow steel pipe (2) is rotated to be vertical to the ground by taking the fixed steel nail (3) as a circle center, the threaded hollow steel pipe (2) is connected with the detachable base (1), and the detachable base (1) is used as a fulcrum to be pulled out;
3) in the pulling process, the clamping structure (4) and the drill rod (8) are tightly occluded by controlling the switch handle (5) of the clamping structure, and after the adjustment is finished, a field operator lifts upwards through the steel handle (6) to pull;
4) after the drill bit at the bottom of the hole is pulled up and loosened, the clamping structure is controlled to control the switch handle (5) to loosen the clamping structure (4), and the drill rod (8) is manually lifted out; if the drill bit is loosened after the bottom of the hole is pulled up, the manual pulling up is still difficult, and the clamping structure is readjusted to control the switch handle (5) to finish the continuous pulling up.
7. The method for pulling up a composite hand twist drill according to claim 6, wherein in step 3), a hollow sleeve (7) is inserted into the steel handle (6) to adjust the length of the force arm, in consideration of the insufficient pulling force caused by some special conditions.
CN202011604699.4A 2020-12-30 2020-12-30 Combined hand twist drill pulling tool and drilling pulling method thereof Active CN112647853B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011604699.4A CN112647853B (en) 2020-12-30 2020-12-30 Combined hand twist drill pulling tool and drilling pulling method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011604699.4A CN112647853B (en) 2020-12-30 2020-12-30 Combined hand twist drill pulling tool and drilling pulling method thereof

Publications (2)

Publication Number Publication Date
CN112647853A true CN112647853A (en) 2021-04-13
CN112647853B CN112647853B (en) 2023-10-13

Family

ID=75364100

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011604699.4A Active CN112647853B (en) 2020-12-30 2020-12-30 Combined hand twist drill pulling tool and drilling pulling method thereof

Country Status (1)

Country Link
CN (1) CN112647853B (en)

Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH239707A (en) * 1944-04-21 1945-11-15 Krieg Fritz Earth auger.
US4161310A (en) * 1978-06-22 1979-07-17 Parker Merrill D Metal fence post puller
US5597151A (en) * 1994-07-15 1997-01-28 Duncan; Charles W. Stake puller with stake supporting back plate
US6302376B1 (en) * 1999-04-05 2001-10-16 John Williams Self-translating stake puller
US20040065476A1 (en) * 2002-10-04 2004-04-08 Roberts Jeffrey John Soil drill rod extractor
US20070081869A1 (en) * 2005-10-06 2007-04-12 Mike Glodowski Hand-held drill leverage unit
CN202797314U (en) * 2012-09-28 2013-03-13 国家电网公司 Drilling grounding nager
CN203320530U (en) * 2013-05-10 2013-12-04 郑文忠 Pulling-out device for building bracing piece
CN204356778U (en) * 2014-12-04 2015-05-27 浙江水利水电学院 Drill rod pulling-up device visited by pricker
CN105547744A (en) * 2016-02-26 2016-05-04 浙江大学 Deep soil sampler with lever device and method thereof
CN207095889U (en) * 2017-06-28 2018-03-13 湖南省地质矿产勘查开发局探矿机械研制中心 Drilling rod, which rises, pulls out structure and impact sampler drill
CN208648703U (en) * 2018-08-17 2019-03-26 创亚实业有限公司 A kind of multi-purpose tool
CN210033320U (en) * 2019-05-09 2020-02-07 中国电建集团江西省电力设计院有限公司 Portable geological twist drill easy to disassemble and assemble
CN211285553U (en) * 2019-11-12 2020-08-18 黄爱新 Drill rod detection equipment

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH239707A (en) * 1944-04-21 1945-11-15 Krieg Fritz Earth auger.
US4161310A (en) * 1978-06-22 1979-07-17 Parker Merrill D Metal fence post puller
US5597151A (en) * 1994-07-15 1997-01-28 Duncan; Charles W. Stake puller with stake supporting back plate
US6302376B1 (en) * 1999-04-05 2001-10-16 John Williams Self-translating stake puller
US20040065476A1 (en) * 2002-10-04 2004-04-08 Roberts Jeffrey John Soil drill rod extractor
US20070081869A1 (en) * 2005-10-06 2007-04-12 Mike Glodowski Hand-held drill leverage unit
CN202797314U (en) * 2012-09-28 2013-03-13 国家电网公司 Drilling grounding nager
CN203320530U (en) * 2013-05-10 2013-12-04 郑文忠 Pulling-out device for building bracing piece
CN204356778U (en) * 2014-12-04 2015-05-27 浙江水利水电学院 Drill rod pulling-up device visited by pricker
CN105547744A (en) * 2016-02-26 2016-05-04 浙江大学 Deep soil sampler with lever device and method thereof
CN207095889U (en) * 2017-06-28 2018-03-13 湖南省地质矿产勘查开发局探矿机械研制中心 Drilling rod, which rises, pulls out structure and impact sampler drill
CN208648703U (en) * 2018-08-17 2019-03-26 创亚实业有限公司 A kind of multi-purpose tool
CN210033320U (en) * 2019-05-09 2020-02-07 中国电建集团江西省电力设计院有限公司 Portable geological twist drill easy to disassemble and assemble
CN211285553U (en) * 2019-11-12 2020-08-18 黄爱新 Drill rod detection equipment

Also Published As

Publication number Publication date
CN112647853B (en) 2023-10-13

Similar Documents

Publication Publication Date Title
CN101748970B (en) Ultra-short radius radial drilling tool system
CN103088819B (en) Construction prestressed cable method
CN208167757U (en) A kind of multi-functional roadbed earth-retaining anchor plate
CN112647853A (en) Combined type hand-operated twist drill pulling tool and drilling pulling method thereof
CN201635074U (en) Ground anchor
CN209251028U (en) A kind of citrus plantation digging apparatus convenient for adjusting diameter and controlling depth
CN103410541B (en) Tunnel support hydraulic mechanical type resin crab-bolt send anchor device and fixture
CN217841098U (en) Temporary power transmission stringing pole
CN113737802B (en) Construction method of enlarged footing
CN209924918U (en) A direction slip casting drill bit for horizontal slip casting rig
CN210628695U (en) Grounding drill rod pulling device
CN210598924U (en) Ground anchor for oil field
CN213684016U (en) Crowded soil drill bit of stake machine spiral convenient to installation is used
CN111997522A (en) Drilling device penetrating through underground deep-buried waste pipeline and cast-in-place pile construction method
CN203222800U (en) Multi-functional hole cleaning device used for construction
CN201326378Y (en) Expanding drill for foundation construction of high-tension line iron tower
CN113006723B (en) Butterfly type twist drill pulling tool and drilling pulling method thereof
CN213654777U (en) Support frame for artificial drilling well
CN102852157A (en) Manual hole pile digging method employing top-fixing water drilling method
CN219034628U (en) Assembled deep ground drill for power transmission and transformation engineering
CN214145380U (en) Diamond bit for drilling hard rock stratum
CN216656453U (en) Strutting arrangement is used in construction of short tower cable-stay bridge
CN216056139U (en) Silicon core pipe infiltration area presses shutoff subassembly
CN220059434U (en) Drilling machine for burying displacement observation pile
CN210564363U (en) Anchoring drilling machine convenient to install

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant