CN111550183A - Transverse blind hole punching method - Google Patents
Transverse blind hole punching method Download PDFInfo
- Publication number
- CN111550183A CN111550183A CN202010272307.2A CN202010272307A CN111550183A CN 111550183 A CN111550183 A CN 111550183A CN 202010272307 A CN202010272307 A CN 202010272307A CN 111550183 A CN111550183 A CN 111550183A
- Authority
- CN
- China
- Prior art keywords
- cast iron
- cutter bar
- drill rod
- ring
- outer sleeve
- 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.)
- Withdrawn
Links
- 238000004080 punching Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 19
- 229910001018 Cast iron Inorganic materials 0.000 claims abstract description 57
- 230000000149 penetrating effect Effects 0.000 claims abstract description 17
- 230000001681 protective effect Effects 0.000 claims abstract description 16
- 230000002093 peripheral effect Effects 0.000 claims abstract description 13
- 230000006698 induction Effects 0.000 claims abstract description 5
- 239000004575 stone Substances 0.000 claims description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 238000003860 storage Methods 0.000 claims description 12
- 230000001939 inductive effect Effects 0.000 claims description 11
- 239000004568 cement Substances 0.000 claims description 6
- 238000003780 insertion Methods 0.000 claims description 6
- 230000037431 insertion Effects 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 239000004576 sand Substances 0.000 claims description 6
- 238000005422 blasting Methods 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 239000012466 permeate Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 9
- 239000010410 layer Substances 0.000 description 9
- 238000005553 drilling Methods 0.000 description 4
- 239000004020 conductor Substances 0.000 description 3
- 239000002360 explosive Substances 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
- E21B7/046—Directional drilling horizontal drilling
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B12/00—Accessories for drilling tools
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/007—Drilling by use of explosives
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D3/00—Particular applications of blasting techniques
- F42D3/04—Particular applications of blasting techniques for rock blasting
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
The invention relates to a method for punching a transverse blind hole, which punches the blind hole through a punching mechanism, wherein the punching mechanism comprises an annular cutter bar seat, a cast iron outer sleeve sleeved at the tail end of the annular cutter bar seat and a drill rod of a pipe body structure which is arranged in the cast iron outer sleeve in a penetrating way and connected with the tail end of the cutter bar seat, a protective ring is arranged on the outer peripheral surface of the tail end of the annular cutter bar seat, an end ring which can be abutted against the protective ring is arranged at the front end of the cast iron outer sleeve, the projection of the inner peripheral surface of the end ring along the axial direction of the drill rod is completely positioned on the protective ring, an induction switch which is connected with a warning lamp positioned at the rear end of the cast iron outer sleeve in series through a lead and is matched with the protective ring is arranged at the inner end of the end ring, and. The blind hole construction method has the advantage of good safety, and solves the problem of poor safety in the existing blind hole construction process.
Description
The application is a divisional application of the application with the application number of 2019102737462, application date of 2019, 04, month 07 and the name of 'transverse blind hole punching side'.
Technical Field
The invention relates to the technical field of capital construction, in particular to a horizontal blind hole punching method.
Background
In daily production and life, the phenomenon that a transverse blind hole needs to be formed in a stone mountain (namely a stony mountain) is often encountered, the existing mode of forming the blind hole in the stone mountain is to fry by using an explosive, then, a stone is discharged to form a blind hole blank, and a concrete layer is poured on the hole wall of the blind hole blank to prevent the stone on the hole wall from falling off in the using process. The existing construction mode has the following defects: in the process of construction in the blind hole blank, the safety accident that stones fall to damage people and articles is easily generated, and the safety during construction is poor.
Disclosure of Invention
The invention provides a transverse blind hole punching method with good safety, and solves the problem of poor safety in the existing blind hole construction process.
The technical problem is solved by the following technical scheme: a transverse blind hole punching method is characterized by comprising the following steps that a punching mechanism is used, wherein the punching mechanism comprises an annular cutter bar seat, a cast iron outer sleeve sleeved at the tail end of the annular cutter bar seat and a drill rod of a pipe body structure which is arranged in the cast iron outer sleeve in a penetrating mode and connected with the tail end of the cutter bar seat, a protective ring is arranged on the outer peripheral surface of the tail end of the annular cutter bar seat, an end ring capable of being abutted to the protective ring is arranged at the front end of the cast iron outer sleeve, the inner peripheral surface of the end ring is located on the protective ring along the axial projection of the drill rod, an induction switch which is connected with a warning lamp located at the rear end of the cast iron outer sleeve in series through a lead and matched with the protective ring is arranged at the inner end of the end ring, and a plurality of cutter bars which can be folded; firstly, connecting a warning lamp with a power supply, wherein the warning lamp and an inductive switch are connected in series on the power supply, so that a cutter bar is separated, and a drill rod is positioned in the horizontal direction; secondly, rotating the drill rod, driving the annular cutter bar seat by the drill rod to drive the cutter bar to rotate by taking the drill rod as a shaft, forming an annular groove around the outer part of the annular cutter bar seat by the rotation of the cutter bar on a stone mountain, and forming a stone column penetrating through the cutter bar seat and the drill rod by the part of the stone mountain located in the annular groove; thirdly, when the depth of the cutter bar seat entering the stone mountain reaches the depth of the protection ring and is sensed by the inductive switch, the warning lamp is communicated with the power supply to emit light for warning, the cast iron outer sleeve is driven to move towards the annular groove to increase the insertion depth when the warning lamp emits light, the insertion speed of the cast iron outer sleeve is higher than the speed of the drill rod entering the annular groove, and the depth of the annular groove reaches the designed depth and the end ring is disconnected with the bottom wall of the annular groove in the second step and the third step; fourthly, after the cutter bar is folded, the drill rod is retracted, so that the cutter bar seat and the drill rod are withdrawn from the cast iron jacket, and the cast iron jacket is left in the annular groove; fifthly, directional blasting is carried out between the end ring and the top wall of the annular groove to burst the inner end of the stone pillar; and sixthly, taking out the stone pillar to change the annular groove into a blind hole, and casting the wall of the groove blind hole of the outer sleeve. The invention can synchronously insert the cast iron jacket into the hole wall of the hole in the process of punching, thereby preventing the collapse in the hole and protecting the drill rod, and further improving the safety in construction. Whether the cast iron jacket needs to be pushed in the punching process can be conveniently known. The cast iron outer sleeve is not driven by the tool post or the drill rod, so that the damage to the drill rod of the tool post can be prevented, and the same power can drive the larger drill rod. Detect through inductive switch, know promptly before protective ring and end ring do not have the contact and need impel the cast iron overcoat, better to the protective effect of equipment. Set up end ring cooperation lag and the inner peripheral surface of end ring and all be located the guard ring along the axial projection of drilling rod, can prevent to punch the in-process stone and get into to produce the phenomenon production that damages the drilling rod even block between cast iron overcoat and the drilling rod.
Preferably, an inner sleeve is further arranged in the cast iron outer sleeve in a penetrating manner, a mold cavity is formed among the inner sleeve, the end ring and the cast iron outer sleeve, one end, far away from the cutter bar seat, of the mold cavity is opened to form a feed inlet, a plurality of permeation holes penetrating through the mold cavity are formed in a side plate of the inner sleeve, and the fourth step is divided into the following steps: 4-1, filling the mixture of sand and cement into the die cavity through the feed inlet; 4-2, withdrawing the drill rod after the cutter bar is folded, so that the cutter bar seat and the drill rod are withdrawn from the cast iron jacket; 4-3, sealing the outer end of the cast iron outer sleeve to form a water storage cavity between the inner sleeve and the stone pillar; 4-4, filling water into the water storage cavity, and enabling water in the water storage cavity to permeate into the mold cavity through the permeation holes so that a cement sand mixture in the mold cavity forms a concrete layer covering the inner peripheral surface of the cast iron outer sleeve; and 4-5, discharging water in the water storage cavity. Can form a concrete layer which can prevent the cast iron outer sleeve forming the hole wall from being aged, rusted and damaged. The inner sleeve forms a template of the die cavity and can be used as a decorative surface layer in the blind hole.
Preferably, the lead is located in the concrete layer, the inductive switch is located outside the mold cavity, the guide comprises a first lead and a second lead, the second lead is electrically connected with a plurality of second branches penetrating into the inner sleeve, and the first lead is electrically connected with a plurality of first branches penetrating into the inner sleeve. The head completes the wiring within the blind hole. Therefore, the subsequent installation of lamps in the blind holes is convenient for electricity connection. When the induction switch is connected electrically, one second branch line and one first branch line are electrically connected to form a loop, and the induction switch can be used as a main switch for controlling all the electricity.
Preferably, the outer circumferential surface of one end of the inner sleeve facing the end ring is provided with a connecting ring, the inner end surface of the end ring is provided with a plurality of thread heads which penetrate through connecting holes in the connecting ring and are connected with nuts, and the nuts are matched with the end ring to clamp the connecting ring so as to fix the inner pipe and the cast iron outer pipe together. The number of times of pushing the cast iron outer sleeve is reduced when the length and the punching depth of the annular cutter bar seat on one side, far away from the drill rod, of the protection ring are fixed.
Preferably, the thread head is provided with a pointed end. The convenience is good when connecting the inner sleeve and the cast iron outer sleeve.
Preferably, a plurality of tool-bar mounting openings distributed along the circumferential direction of the annular tool-bar seat are formed in the front end face of the annular tool-bar seat, the tool bars are hinged in the tool-bar mounting openings, and limiting portions capable of maintaining the tool bars in a separated state when the tool bars are rotated towards the direction far away from the axis of the drill rod are arranged on the bottom wall of the tool-bar mounting openings. When the knife strips are folded, the knife strips rotate towards the position of the axis of the annular knife strip seat, namely the inner part of the annular knife strip seat rotates.
The invention has the following advantages: the inner wall of the hole can be synchronously formed in the punching process, so that the safety of subsequent operation in the hole is reduced.
Drawings
FIG. 1 is a schematic view of the present invention at the beginning of drilling
Fig. 2 is a schematic view of a hole punching mechanism in the present invention.
FIG. 3 is a schematic diagram of the present invention after the guard ring is punched until it is detected by the inductive switch.
FIG. 4 is a schematic view of the present invention just after it has been constructed to the depth of the annular groove as designed.
Fig. 5 is a schematic view of the present invention as it is being constructed to form a concrete layer.
FIG. 6 is a schematic view of a blind hole constructed according to the present invention.
In the figure: the device comprises an annular tool post seat 1, a cast iron outer sleeve 2, a drill rod 3, a protective ring 4, an end ring 5, a warning lamp 6, an inductive switch 7, a tool post mounting opening 8, a shaft head 9, a tool post 10, a limiting part 11, an inner sleeve 12, a mold cavity 13, a feed inlet 14, a penetration hole 15, a first lead 16, a second lead 17, a second branch 18, a first branch 19, a connecting ring 20, a nut 21, a threaded head 22, a pointed end 23, a stone hill 24, an annular groove 25, a stone column 26, an explosive package mounting space 27, a concrete layer 28 and a blind hole 30.
Detailed Description
The invention is further described with reference to the following figures and examples.
Referring to fig. 1, 2, 3, 4, 5 and 6, the method for punching the transverse blind hole is carried out by a punching mechanism which comprises an annular cutter bar seat 1, a cast iron outer sleeve 2 sleeved at the tail end of the annular cutter bar seat and a drill rod 3 which is arranged in the cast iron outer sleeve in a penetrating manner and is connected with the tail end of the cutter bar seat in a pipe body structure. The outer peripheral surface of the tail end of the annular blade holder is provided with a protective ring 4. The front end of the cast iron outer sleeve is provided with an end ring 5. The inner circumferential surface of the end ring is located on the guard ring in the axial projection of the drill rod. The inner end of the end ring is provided with an inductive switch 7 which is connected with a warning lamp 6 positioned at the rear end of the cast iron outer sleeve in series through a lead and is matched with the protective ring. The front end face of the annular tool-bar seat is provided with a plurality of tool-bar mounting openings 8 distributed along the circumferential direction of the annular tool-bar seat. And a blade strip 10 is hinged in each blade strip mounting opening through a shaft head 9. The bottom wall of the blade mounting opening is provided with a limiting part 11 which can maintain the blade in a separated state when the blade is rotated in a direction away from the axis of the drill rod. An inner sleeve 12 is also arranged in the cast iron outer sleeve in a penetrating way. And a die cavity 13 is formed among the inner sleeve, the end ring and the cast iron outer sleeve. The die cavity is open at the end away from the blade holder to form a feed opening 14. The side plate of the inner sleeve is provided with a plurality of permeation holes 15 which penetrate through the die cavity. The conductors are located in the concrete layer and the inductive switch is located outside the mould cavity, the guide comprising a first conductor 16 and a second conductor 17. The second wire is electrically connected with a plurality of second branch lines 18 penetrating into the inner sleeve. The first conducting wire is electrically connected with a plurality of first branch wires 19 penetrating into the inner sleeve. The outer peripheral surface of one end of the inner sleeve facing the end ring is provided with a connecting ring 20. The inner end surface of the end ring is provided with a plurality of thread heads 22 which penetrate through the connecting holes on the connecting ring and are connected with the nut 21. The nut mating end ring clamps the connecting ring to fix the inner pipe and the cast iron outer pipe together. The threaded head is provided with a pointed end 23. The construction process of the invention is as follows:
firstly, a warning lamp is connected with a power supply, the warning lamp and an inductive switch are connected on the power supply 29 in series, so that a cutter bar is separated, and a drill rod is in a horizontal direction; secondly, the drill rod rotates, the drill rod drives the annular cutter bar seat to drive the cutter bar to rotate by taking the drill rod as a shaft, the cutter bar rotates on a stone mountain 24 to form an annular groove 25 surrounding the outer part of the annular cutter bar seat, and the part of the stone mountain located in the annular groove forms a stone column 26 penetrating through the cutter bar seat and the drill rod; thirdly, when the depth of the cutter seat entering the stone mountain reaches the depth of the protection ring sensed by the sensing switch, the warning lamp is communicated with the power supply to give out light for warning, the cast iron outer sleeve is driven to move towards the annular groove to increase the insertion depth when the warning lamp gives out light, the insertion speed of the cast iron outer sleeve is higher than the speed of the drill rod entering the annular groove to prevent the protection ring from extruding the end ring, and the depth of the annular groove reaches the designed depth and the end ring and the bottom wall of the annular groove are disconnected to form an explosive package installation space 27 in the second step and the third step; fourthly, after the cutter bar is folded, the drill rod is retracted, so that the cutter bar seat and the drill rod are withdrawn from the cast iron jacket, and the cast iron jacket is left in the annular groove; fifthly, directional blasting is carried out between the end ring and the top wall of the annular groove to burst the inner end of the stone pillar; and sixthly, taking out the stone pillar to change the annular groove into a blind hole 30, wherein the cast iron outer sleeve forms the hole wall of the blind hole.
The fourth step comprises the following steps: 4-1, filling the mixture of sand and cement into the die cavity through the feed inlet; 4-2, withdrawing the drill rod after the cutter bar is folded, so that the cutter bar seat and the drill rod are withdrawn from the cast iron jacket; 4-3, sealing the outer end of the cast iron outer sleeve to form a water storage cavity between the inner sleeve and the stone pillar; 4-4, filling water into the water storage cavity, and enabling water in the water storage cavity to permeate into the mold cavity through the permeation holes so that a cement sand mixture in the mold cavity forms a concrete layer 28 covering the inner peripheral surface of the cast iron outer sleeve; and 4-5, discharging water in the water storage cavity. The lead is positioned in the concrete layer.
Claims (3)
1. A punching method for a transverse blind hole is characterized by comprising the following steps of performing punching through a punching mechanism, wherein the punching mechanism comprises an annular cutter bar seat, a cast iron outer sleeve sleeved at the tail end of the annular cutter bar seat and a drill rod of a pipe body structure connected with the tail end of the cutter bar seat and penetrating through the cast iron outer sleeve, a protective ring is arranged on the outer peripheral surface of the tail end of the annular cutter bar seat, an end ring is arranged at the front end of the cast iron outer sleeve, the inner peripheral surface of the end ring is completely positioned on the protective ring along the axial projection of the drill rod, an induction switch matched with the protective ring and connected with a warning lamp positioned at the rear end of the cast iron outer sleeve in series through a lead is arranged at the inner end of the end ring, and a plurality of cutter bars which can be folded together and penetrate through the end; firstly, connecting a warning lamp with a power supply, wherein the warning lamp and an inductive switch are connected in series on the power supply, so that a cutter bar is separated, and a drill rod is positioned in the horizontal direction; secondly, rotating the drill rod, driving the annular cutter bar seat by the drill rod to drive the cutter bar to rotate by taking the drill rod as a shaft, forming an annular groove around the outer part of the annular cutter bar seat by the rotation of the cutter bar on a stone mountain, and forming a stone column penetrating through the cutter bar seat and the drill rod by the part of the stone mountain located in the annular groove; thirdly, when the depth of the cutter bar seat entering the stone mountain reaches the depth of the protection ring and is sensed by the inductive switch, the warning lamp is communicated with the power supply to emit light for warning, the cast iron outer sleeve is driven to move towards the annular groove to increase the insertion depth when the warning lamp emits light, the insertion speed of the cast iron outer sleeve is higher than the speed of the drill rod entering the annular groove, and the depth of the annular groove reaches the designed depth and the end ring is disconnected with the bottom wall of the annular groove in the second step and the third step; fourthly, after the cutter bar is folded, the drill rod is retracted, so that the cutter bar seat and the drill rod are withdrawn from the cast iron jacket, and the cast iron jacket is left in the annular groove; fifthly, directional blasting is carried out between the end ring and the top wall of the annular groove to burst the inner end of the stone pillar; sixthly, taking out the stone pillar to change the annular groove into a blind hole, wherein the cast iron outer sleeve forms the hole wall of the blind hole; the outer peripheral surface of one end, facing the end ring, of the inner sleeve is provided with a connecting ring, the inner end surface of the end ring is provided with a plurality of threaded heads which penetrate through connecting holes in the connecting ring and are connected with nuts, and the nuts are matched with the end ring to clamp the connecting ring so as to fix the inner pipe and the cast iron outer pipe together.
2. The method for perforating the transverse blind hole according to claim 1, wherein an inner sleeve is further arranged in the cast iron outer sleeve in a penetrating manner, a die cavity is formed among the inner sleeve, the end ring and the cast iron outer sleeve, one end of the die cavity, which is far away from the cutter bar seat, is opened to form a feed inlet, a plurality of penetrating holes penetrating through the die cavity are formed in a side plate of the inner sleeve, and the fourth step is divided into the following steps: 4-1, filling the mixture of sand and cement into the die cavity through the feed inlet; 4-2, withdrawing the drill rod after the cutter bar is folded, so that the cutter bar seat and the drill rod are withdrawn from the cast iron jacket; 4-3, sealing the outer end of the cast iron outer sleeve to form a water storage cavity between the inner sleeve and the stone pillar; 4-4, filling water into the water storage cavity, and enabling water in the water storage cavity to permeate into the mold cavity through the permeation holes so that a cement sand mixture in the mold cavity forms a concrete layer covering the inner peripheral surface of the cast iron outer sleeve; and 4-5, discharging water in the water storage cavity.
3. The method according to claim 1, wherein a plurality of tool bar mounting openings are formed in a front end surface of the annular tool bar seat and circumferentially distributed along the annular tool bar seat, the tool bars are hinged in the tool bar mounting openings, and a limiting portion is formed in a bottom wall of each tool bar mounting opening, so that the tool bars can be maintained in a separated state when being rotated in a direction away from the axis of the drill rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010272307.2A CN111550183A (en) | 2019-04-07 | 2019-04-07 | Transverse blind hole punching method |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910273746.2A CN110080681B (en) | 2019-04-07 | 2019-04-07 | Transverse blind hole punching method |
| CN202010272307.2A CN111550183A (en) | 2019-04-07 | 2019-04-07 | Transverse blind hole punching method |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910273746.2A Division CN110080681B (en) | 2019-04-07 | 2019-04-07 | Transverse blind hole punching method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111550183A true CN111550183A (en) | 2020-08-18 |
Family
ID=67414236
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010272307.2A Withdrawn CN111550183A (en) | 2019-04-07 | 2019-04-07 | Transverse blind hole punching method |
| CN201910273746.2A Active CN110080681B (en) | 2019-04-07 | 2019-04-07 | Transverse blind hole punching method |
| CN202010576859.2A Withdrawn CN111720055A (en) | 2019-04-07 | 2019-04-07 | Transverse blind hole punching method |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910273746.2A Active CN110080681B (en) | 2019-04-07 | 2019-04-07 | Transverse blind hole punching method |
| CN202010576859.2A Withdrawn CN111720055A (en) | 2019-04-07 | 2019-04-07 | Transverse blind hole punching method |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN111550183A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112903345A (en) * | 2021-01-26 | 2021-06-04 | 江西师范大学 | Soil or plant root system sampler and sampling method |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2177797Y (en) * | 1993-11-12 | 1994-09-21 | 南京市第三建筑工程公司 | Engineering drilling core extractor |
| DE19512123C2 (en) * | 1995-04-04 | 2002-10-31 | Bohrtec Gmbh & Co Kg | Device for the underground production of ducts and lines |
| CN1464170A (en) * | 2002-06-14 | 2003-12-31 | 盘锦万维科技发展有限公司 | Oil exploitation super short radius horizontal drilling completion tool and process thereof |
| JP5556998B2 (en) * | 2010-02-19 | 2014-07-23 | 住友電装株式会社 | Female terminal |
| CN104358515B (en) * | 2014-11-12 | 2016-06-15 | 连云港黄海勘探技术有限公司 | Horizontal directional drilling machine guide rod |
| CN107386974B (en) * | 2017-09-06 | 2023-07-04 | 金石钻探(唐山)股份有限公司 | Water way sealing device and method for horizontal hole drilling tool |
| CN108049812A (en) * | 2018-01-30 | 2018-05-18 | 安徽创奇监测设备有限公司 | A kind of Pneumatic rotary, which is oriented to, promotes drilling machine |
-
2019
- 2019-04-07 CN CN202010272307.2A patent/CN111550183A/en not_active Withdrawn
- 2019-04-07 CN CN201910273746.2A patent/CN110080681B/en active Active
- 2019-04-07 CN CN202010576859.2A patent/CN111720055A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112903345A (en) * | 2021-01-26 | 2021-06-04 | 江西师范大学 | Soil or plant root system sampler and sampling method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110080681A (en) | 2019-08-02 |
| CN110080681B (en) | 2020-08-18 |
| CN111720055A (en) | 2020-09-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2007461C (en) | Whipstock starter mill with pressure drop tattletale | |
| US20090308605A1 (en) | Methodolgy and apparatus for programmable robotic rotary mill cutting of multiple nested tubulars | |
| US20100038080A1 (en) | Method and apparatus for programmable robotic rotary mill cutting of multiple nested tubulars | |
| CN110080681B (en) | Transverse blind hole punching method | |
| US20110209872A1 (en) | Method and apparatus for programmable robotic rotary mill cutting of multiple nested tubulars | |
| CN107313734B (en) | Windowing side drilling tool and windowing method thereof | |
| US9068454B1 (en) | Method for wire saw excavation | |
| CN110080677B (en) | Well drilling method | |
| US11230899B2 (en) | Well abandonment and slot recovery | |
| CN102904150A (en) | Novel wire stripping device | |
| AU2008238433A1 (en) | Downhole System | |
| CN102179423B (en) | Automatic bore tapering shaping machine | |
| CN110071608B (en) | Motor stator core separation wire stripping machine | |
| CN206445502U (en) | Motor casing punches tapping drilling machine and transport clamping device | |
| CN207868599U (en) | The peeling cutter head structure of automatic wire cutting machine | |
| US4339006A (en) | Method and apparatus for mine roof drilling | |
| US2622679A (en) | Inside pipe cutter | |
| CN218253848U (en) | Pipe fitting drilling flanging mechanism | |
| CN206952062U (en) | A kind of self-plugging rivet tack blind rivet system follows closely combination die | |
| CN218252439U (en) | Pipe fitting punching mechanism | |
| CN106975789A (en) | A kind of steel pipe cutting hydraulic machine | |
| KR100622080B1 (en) | Sleeve of anchor bolt and sleeve molding method and mold for incision groove of sleeve | |
| CN112894972A (en) | Automatic die cutting machine system and method | |
| US9932802B2 (en) | Downhole slot cutter | |
| CN204729826U (en) | Automatic slotting wiring unit |
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 | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200818 |
|
| WW01 | Invention patent application withdrawn after publication |