CN108661581B - A kind of closing component of the coring soft bag with comb-tooth-type limiter - Google Patents

A kind of closing component of the coring soft bag with comb-tooth-type limiter Download PDF

Info

Publication number
CN108661581B
CN108661581B CN201810400776.0A CN201810400776A CN108661581B CN 108661581 B CN108661581 B CN 108661581B CN 201810400776 A CN201810400776 A CN 201810400776A CN 108661581 B CN108661581 B CN 108661581B
Authority
CN
China
Prior art keywords
comb
tooth
corer
soft bag
type limiter
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.)
Active
Application number
CN201810400776.0A
Other languages
Chinese (zh)
Other versions
CN108661581A (en
Inventor
孙京
姜生元
梁杰能
马超
刘飞
邓宗全
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.)
Harbin Institute of Technology
Original Assignee
Harbin Institute of Technology
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 Harbin Institute of Technology filed Critical Harbin Institute of Technology
Priority to CN201810400776.0A priority Critical patent/CN108661581B/en
Publication of CN108661581A publication Critical patent/CN108661581A/en
Application granted granted Critical
Publication of CN108661581B publication Critical patent/CN108661581B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • E21B25/00Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors
    • E21B25/005Above ground means for handling the core, e.g. for extracting the core from the core barrel
    • 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
    • E21B25/00Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors
    • E21B25/02Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors the core receiver being insertable into, or removable from, the borehole without withdrawing the drilling pipe
    • 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
    • E21B25/00Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors
    • E21B25/06Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors the core receiver having a flexible liner or inflatable retaining means

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (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)
  • Food-Manufacturing Devices (AREA)

Abstract

The present invention provides a kind of closing component of the coring soft bag with comb-tooth-type limiter, including coring mechanism, setting fastening mechanism and comb-tooth-type limiter, coring mechanism includes rope, soft bag, corer and outer protection tube, the inner wall of comb-tooth-type limiter and coring pipe end mating part is equipped with corer centering anchor ring, in the circumferentially uniformly distributed multiple protrusions in the upper end of corer centering anchor ring, gap is equipped between two neighboring protrusion, connection is equipped with a strip appearance wire casing below each gap, it is equipped with annular on the corresponding comb-tooth-type limiter inner wall of raised radial outside and holds ball groove, protrusion is corresponding with annular appearance ball groove position, setting fastening mechanism includes sealing, fisherman's bend and spacing ball.The present invention realizes in drilling process with the packaging effect for boring sealing and multiple tracks sealing, sampling package reliability is improved, by reducing the random eccentricity of corer, reduce drilling process and capping processes proposes core power, reduction mentions core fluctuation, ensures that lunar exploration sampling engineering is smoothly implemented.

Description

A kind of closing component of the coring soft bag with comb-tooth-type limiter
Technical field
The invention belongs to lunar surfaces to drill through sampling encapsulation technology field, more particularly, to a kind of coring soft bag with comb-tooth-type The closing component of limiter.
Background technique
China Lunar Exploration Program point " around, fall, return " three-step-march, around the moon and fall moon task and satisfactorily completed, the moon is sampled and returned The vital task that the earth has become China's moon exploration program is returned, since lunar surface sampling operation operating condition is complicated, lunar surface environment and operation soil Earth all has uncertain feature, and realizing row, nobody drills through acquisition and packaged sample task seems particularly troublesome.Current brill Core mechanism of keeping forging ahead mainly is made of drilling unit and coring encapsulation unit, wherein coring encapsulation unit carries sample extraction and appoints Business, is the important leverage link that sample successfully returns, and reliable sealing effect how is realized under unknown lunar soil operating condition, and sufficiently Play equipment performance, realize sample is packaged to greatest extent be sample encapsulation design difficulty.
Summary of the invention
In view of this, the present invention is directed to propose a kind of closing component of the coring soft bag with comb-tooth-type limiter, is realized With the packaging effect for boring sealing and multiple tracks sealing in drilling process, sampling package reliability is improved, it is random by reducing corer Eccentricity, reduction drilling process and capping processes propose core power, and reduction mentions core fluctuation, ensure that lunar exploration sampling engineering is smoothly real It applies.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
A kind of closing component of the coring soft bag with comb-tooth-type limiter, including coring mechanism, setting fastening mechanism and comb teeth Formula limiter, the coring mechanism include rope, soft bag, corer and outer protection tube, and one end of the rope will be soft A wherein open end for bag is tied to form closed end, and the other end of the rope is connect inside corer with external firmware, On the outer wall of another open end set setting corer of the soft bag, the outer protection tube is located at outside corer, and coaxial Setting;
One end of the comb-tooth-type limiter is fixedly connected with outer protection tube end, and the other end is matched with cavity gap in drill bit It closes, the comb-tooth-type limiter is located at outside corer, and is coaxially disposed;
The comb-tooth-type limiter is irregular wall thickness class cylinder nested structure, the comb-tooth-type limiter and corer The inner wall of end mating part is equipped with corer centering anchor ring, circumferentially uniformly distributed multiple convex in the upper end of corer centering anchor ring It rises, is equipped with gap between the two neighboring protrusion, is connected to below each gap and holds wire casing equipped with a strip, in protrusion The corresponding comb-tooth-type limiter inner wall of radial outside holds ball groove equipped with annular, and the protrusion is opposite with annular appearance ball groove position It answers;
The setting fastening mechanism includes that sealing, fisherman's bend and spacing ball, the sealing are woven in the warp of soft bag, The radially opposite sides of the soft bag reserve each two drawstrings and form fisherman's bend, the end of two drawstrings of ipsilateral setting with one Spacing ball is fixedly connected, and fracture region is formed between each spacing ball and respective side fisherman's bend.
Further, the fracture region is that a wherein drawstring for establishment fisherman's bend is straightened and spacing ball is glued, establishment It is glued again with spacing ball after another drawstring of fisherman's bend is one section reserved.
Further, the protrusion is semi-cylindrical protrusion or semi-conical protrusion, and the top of protrusion is hemispherical junction Structure.
Further, the outer protection tube top is connected with corer top using pin, comb-tooth-type limiter top Screw thread by the way that outer protection tube exterior end is arranged in is connect with outer protection tube spiral.
Further, the gap between the corer centering anchor ring and the outer wall of corer of the comb-tooth-type limiter is 0.6mm。
Further, the comb-tooth-type limiter is to corer in the centering support section for axially having 6mm.
Further, the rope is that Kevlar fiber is integrated weaved with soft bag.
Further, multiple groups setting fastening mechanism is arranged in uniform intervals along the length direction of the soft bag.
Compared with the existing technology, a kind of coring soft bag of the present invention has with the closing component with comb-tooth-type limiter There is following advantage:
A kind of closing component of the coring soft bag with comb-tooth-type limiter of the present invention, comb-tooth-type limiter can be more Spacing ball in secondary utilization, with multiple tracks sealing forms the coring packing forms of " one-to-many ", increases sealing quantity;Protrusion, which is located at, to be taken Core pipe centering anchor ring upper end, cooperation spacing ball use, and can reduce sealing stroke, increase sample package length;Using radial dimension Small fisherman's bend sufficiently empty profit can turn down space, and cooperate with spacing ball, and so that drawstring is determined region, gradually stress is broken, and improves envelope Mouth reliability;Limiter is equipped with strip and holds wire casing, can optimize fracture drawstring Path of Force Transfer;Interdigitated electrode structure oversheath reduces corer Radial clearance between oversheath plays the role of centering support to corer, can reduce in drilling process and capping processes It proposes core power and mentions core fluctuation, be conducive to sample devices performance and give full play to.The above is conducive to raising sampling encapsulation can By property.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to provide further understanding of the present invention, schematic reality of the invention It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is a kind of structure of closing component of the coring soft bag with comb-tooth-type limiter described in the embodiment of the present invention Schematic diagram;
Fig. 2 is a kind of coring soft bag comb teeth in the closing component with comb-tooth-type limiter described in the embodiment of the present invention The structural schematic diagram of formula limiter;
Fig. 3 is the structural schematic diagram of fisherman's bend and spacing ball.
Description of symbols:
1- soft bag, 2- corer, 3- sealing, 4- spacing ball, 5- fisherman's bend, 6- comb-tooth-type limiter, the centering of 61- corer Anchor ring, 62- protrusion, 63- annular hold ball groove, and 64- strip holds wire casing, 7- outer protection tube, 8- drill bit, 9- rope.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase Mutually combination.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
As shown in Figure 1-Figure 3, a kind of closing component of the coring soft bag with comb-tooth-type limiter, including coring mechanism, Setting fastening mechanism and comb-tooth-type limiter 6, the coring mechanism include rope 9, soft bag 1, corer 2 and outer protection tube 7, described One end of rope 9 a wherein open end for soft bag 1 is tied to form closed end, the other end of the rope 9 runs through coring 2 inside of pipe is connect with external firmware, on the outer wall of another open end set setting corer 2 of the soft bag 1, the outer shield Pipe 7 is located at outside corer 2, and is coaxially disposed;
One end of the comb-tooth-type limiter 6 is fixedly connected with 7 end of outer protection tube, cavity gap in the other end and drill bit 8 Cooperation, the comb-tooth-type limiter 6 are located at outside corer 2, and are coaxially disposed;
The comb-tooth-type limiter 6 is irregular wall thickness class cylinder nested structure, the comb-tooth-type limiter 6 and coring The inner wall of 2 end mating part of pipe is equipped with corer centering anchor ring 61, circumferentially uniformly distributed in the upper end of corer centering anchor ring 61 Gap is equipped between multiple raised 62, two neighboring described raised 62, connection is equipped with a strip appearance below each gap Wire casing 64 is equipped with annular on corresponding 6 inner wall of comb-tooth-type limiter of raised 62 radial outsides and holds ball groove 63, described raised 62 with It is corresponding that annular holds 63 position of ball groove;
The setting fastening mechanism includes that sealing 3, fisherman's bend 5 and spacing ball 4, the sealing 3 are woven in the warp of soft bag 1 In, each two drawstrings, which are reserved, in the radially opposite sides of the soft bag 1 forms fisherman's bend 5, the end of two drawstrings of ipsilateral setting It is fixedly connected with a spacing ball 4, forms fracture region between each spacing ball 4 and respectively side fisherman's bend 5.
The wherein drawstring that region is establishment fisherman's bend 5 that is broken is straightened to be glued with spacing ball 4, works out the another of fisherman's bend 5 It is glued again with spacing ball 4 after a piece drawstring is one section reserved, this set may be implemented gradually to determine the fracture of region stress, improve fracture Controllability.
The material of spacing ball 4 is copper, and intermediate there are cable-through holes.
Protrusion 62 is semi-cylindrical protrusion or semi-conical protrusion, and the top of protrusion 62 is hemispherical configuration, spacing ball 4 When reaching at raised 62 positions, the strip that is formed between two neighboring raised 62, which holds wire casing 64, to be played to connecting with spacing ball 4 The guiding function of drawstring, under the collective effect of hemispherical configuration and drawstring, spacing ball 4, which is directed into annular, to be held in ball groove 63, Spacing ball 4 reaches after annular holds ball groove 63 and also generates position-limiting action to drawstring connected to it in turn.
7 top of outer protection tube is connected with 2 top of corer using pin, and 6 top of comb-tooth-type limiter is existed by setting The screw thread of 7 exterior end of outer protection tube is connect with 7 spiral of outer protection tube.
Since corer 2 and outer protection tube 7 are all the hollow thin-wall pipes more than two meters, radial clearance is unilateral 2mm, the work of cantilever The deflection deformation of 2mm is easily achieved under, in fact, it is essentially all eccentric that corer 2 and outer protection tube 7 assemble later , it is difficult to realize coaxial arrangement, therefore, link of feeling relieved is needed in drilling operation, and comb-tooth-type limiter 6 is just to corer 2 Play certralizing ability, specific arrangement is as follows: the outer wall of the corer centering anchor ring 61 of comb-tooth-type limiter 6 and corer 2 it Between gap be 0.6mm, comb-tooth-type limiter 6 is axially having the limit section of 6mm to corer 2, can be to taking in drilling operation Core pipe 2 plays certralizing ability, solves corer 2 with into eccentric serious problems, reduction proposes core power, and guarantees that sample intake passage is smooth Property.
Rope 9 is that Kevlar fiber is integrated weaved with soft bag 1.
Multiple groups setting fastening mechanism is arranged in uniform intervals along the length direction of soft bag 1, such as a system is arranged at interval of 0.5m Buckle mechanism can be achieved with the purpose just sealed every 0.5m, realize sealing for many times, both carry out convenient for the lunar soil to different depth Encapsulation is also conducive to emergency situations occur, such as encounters excessively severe lunar soil operating condition, when being unable to complete expected drilling depth, in time Soft bag 1 is sealed.
It is drilled through in sampling process carrying out lunar surface, when drilling operation, drilling rod and drill bit are former by revolution, drilling movement cutting Position lunar soil simultaneously forms sample, and soft bag rises traction by lifting and pulls in inside corer, samples this to fill.Meanwhile it being had in soft bag Setting fastening component move therewith.After drilling, rope affects coring soft bag to go successively to inside corer, when spacing ball 4 When reaching at the protrusion 62 of comb-tooth-type limiter 6, drawstring will through the guiding in gap and strip appearance wire casing 64 between protrusion 62 Spacing ball 4 is directed to annular and holds ball groove 63, the 4 direct bearing drawstring other end of spacing ball connection sealing 3.Sealing 3 in soft bag 1 with ploughing under After corer 2, in sealing 1 after being completely drawn out of drawstring, the fracture of fracture region, 3 tightening of sealing will be in 2 inside soft bag 1 of corer Sample be packaged, complete sealing operation.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.

Claims (8)

1. a kind of closing component of the coring soft bag with comb-tooth-type limiter, it is characterised in that: including coring mechanism, setting fastening machine Structure and comb-tooth-type limiter (6), the coring mechanism include rope (9), soft bag (1), corer (2) and outer protection tube (7), A wherein open end for soft bag (1) is tied to form closed end by one end of the rope (9), the rope (9) it is another End is connect inside corer (2) with external firmware, another open end set setting corer (2) of the soft bag (1) On outer wall, it is external that the outer protection tube (7) is located at corer (2), and is coaxially disposed;
One end of the comb-tooth-type limiter (6) is fixedly connected with outer protection tube (7) end, between the other end and drill bit (8) inner cavity Gap cooperation, it is external that the comb-tooth-type limiter (6) is located at corer (2), and is coaxially disposed;
The comb-tooth-type limiter (6) is irregular wall thickness class cylinder nested structure, the comb-tooth-type limiter (6) and coring The inner wall for managing (2) end mating part is equipped with corer centering anchor ring (61), in the upper end of corer centering anchor ring (61) week To uniformly multiple raised (62), it is equipped with gap between two neighboring raised (62), connection is equipped with below each gap One strip holds wire casing (64), is equipped with annular on corresponding comb-tooth-type limiter (6) inner wall of raised (62) radial outside and holds ball Slot (63), the protrusion (62) are corresponding with annular appearance ball groove (63) position;
The setting fastening mechanism includes that sealing (3), fisherman's bend (5) and spacing ball (4), the sealing (3) are woven in soft bag (1) Warp in, reserve each two drawstrings in the radially opposite sides of the soft bag (1) and form fisherman's bend (5), two of ipsilateral setting The end of drawstring is fixedly connected with a spacing ball (4), is formed between each spacing ball (4) and respective side fisherman's bend (5) broken Disconnected region.
2. a kind of closing component of the coring soft bag with comb-tooth-type limiter according to claim 1, it is characterised in that: The fracture region is that a wherein drawstring for establishment fisherman's bend (5) is straightened and spacing ball (4) are glued, establishment fisherman's bend (5) It is glued again with spacing ball (4) after another drawstring is one section reserved.
3. a kind of closing component of the coring soft bag with comb-tooth-type limiter according to claim 2, it is characterised in that: The protrusion (62) is semi-cylindrical protrusion or semi-conical protrusion, and the top of raised (62) is hemispherical configuration.
4. a kind of closing component of the coring soft bag with comb-tooth-type limiter according to claim 1, it is characterised in that: Outer protection tube (7) top is connected with corer (2) top using pin, and comb-tooth-type limiter (6) top passes through setting It is connect in the screw thread of outer protection tube (7) exterior end with outer protection tube (7) spiral.
5. a kind of closing component of the coring soft bag with comb-tooth-type limiter described in any one of -4 according to claim 1, It is characterized by: the gap between corer centering anchor ring (61) of the comb-tooth-type limiter (6) and the outer wall of corer (2) For 0.6mm.
6. a kind of closing component of the coring soft bag with comb-tooth-type limiter according to claim 5, it is characterised in that: The comb-tooth-type limiter (6) is to corer (2) in the centering support section for axially having 6mm.
7. a kind of closing component of the coring soft bag with comb-tooth-type limiter according to claim 6, it is characterised in that: The rope (9) is that Kevlar fiber is integrated weaved with soft bag (1).
8. a kind of closing component of the coring soft bag with comb-tooth-type limiter according to claim 7, it is characterised in that: Multiple groups setting fastening mechanism is arranged in uniform intervals along the length direction of the soft bag (1).
CN201810400776.0A 2018-04-28 2018-04-28 A kind of closing component of the coring soft bag with comb-tooth-type limiter Active CN108661581B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810400776.0A CN108661581B (en) 2018-04-28 2018-04-28 A kind of closing component of the coring soft bag with comb-tooth-type limiter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810400776.0A CN108661581B (en) 2018-04-28 2018-04-28 A kind of closing component of the coring soft bag with comb-tooth-type limiter

Publications (2)

Publication Number Publication Date
CN108661581A CN108661581A (en) 2018-10-16
CN108661581B true CN108661581B (en) 2019-06-21

Family

ID=63781450

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810400776.0A Active CN108661581B (en) 2018-04-28 2018-04-28 A kind of closing component of the coring soft bag with comb-tooth-type limiter

Country Status (1)

Country Link
CN (1) CN108661581B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109323884B (en) * 2018-11-27 2021-02-19 哈尔滨工业大学 Pulling rope fastening and quick sealing assembly for star soil coring soft bag
CN110552644B (en) * 2019-10-05 2024-01-23 中国石油大学(华东) In-situ coal rock heat-preserving pressure-maintaining coring device and application method
CN110630200B (en) * 2019-10-10 2024-06-25 中交第二航务工程局有限公司 Simple and easy ultra-large diameter core drilling core sample extraction device and core taking method
CN112255014B (en) * 2020-11-19 2024-01-30 武汉轻工大学 Acquisition drill bit and acquisition device
CN114354244B (en) * 2021-12-03 2023-07-14 武汉轻工大学 Material inserting device

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201953332U (en) * 2010-12-14 2011-08-31 湖北地矿建设工程承包集团有限公司 Telescopic overlapped type flexible bag tube core taking inner tube
CN102498260A (en) * 2009-07-31 2012-06-13 霍利贝顿能源服务公司 Core drill and coring method
CN105510078A (en) * 2015-11-27 2016-04-20 北京卫星制造厂 Built-in soft lunar soil sample sampling mechanism
CN206035428U (en) * 2016-07-18 2017-03-22 中国石油集团西部钻探工程有限公司 Hydraulic pressure locking formula device of coring
CN107313732A (en) * 2017-08-17 2017-11-03 北京探矿工程研究所 Rope rotation type heat preservation and pressure maintaining sampling drilling tool
CN107503698A (en) * 2017-09-19 2017-12-22 哈尔滨工业大学 A kind of lunar soil drilling coring mechanism with guide ring
CN107777086A (en) * 2017-10-25 2018-03-09 哈尔滨工业大学 Lunar soil coring soft bag drawstring setting fastening closing component

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8365839B2 (en) * 2010-02-17 2013-02-05 Bijan Danesh Substantially simultaneous core containment, core retrieval and borehole abatement

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102498260A (en) * 2009-07-31 2012-06-13 霍利贝顿能源服务公司 Core drill and coring method
CN201953332U (en) * 2010-12-14 2011-08-31 湖北地矿建设工程承包集团有限公司 Telescopic overlapped type flexible bag tube core taking inner tube
CN105510078A (en) * 2015-11-27 2016-04-20 北京卫星制造厂 Built-in soft lunar soil sample sampling mechanism
CN206035428U (en) * 2016-07-18 2017-03-22 中国石油集团西部钻探工程有限公司 Hydraulic pressure locking formula device of coring
CN107313732A (en) * 2017-08-17 2017-11-03 北京探矿工程研究所 Rope rotation type heat preservation and pressure maintaining sampling drilling tool
CN107503698A (en) * 2017-09-19 2017-12-22 哈尔滨工业大学 A kind of lunar soil drilling coring mechanism with guide ring
CN107777086A (en) * 2017-10-25 2018-03-09 哈尔滨工业大学 Lunar soil coring soft bag drawstring setting fastening closing component

Also Published As

Publication number Publication date
CN108661581A (en) 2018-10-16

Similar Documents

Publication Publication Date Title
CN108661581B (en) A kind of closing component of the coring soft bag with comb-tooth-type limiter
CN102680275B (en) Device for sampling shallow soil of extraterrestrial star
CN204476329U (en) A kind of basement rock triple pipe core bit
CN107503698B (en) Lunar soil drilling core taking mechanism with flow guide ring
CN109357906A (en) A kind of hollow lunar soil core bit of integrated space spherical helix of chip chip removal
CN102680274B (en) End actuating mechanism for sampling extraterrestrial body shallow soil
CN106285465B (en) A kind of device and method suitable for the drilling of TSP blastholes
CN203114190U (en) Rock drilling drill stem
CN102852461A (en) Core drilling drill with barrier crushing and chip-discharge functions
CN208765985U (en) A kind of original position drills through the drill bit of pedotheque
CN206668198U (en) The geological prospecting double-layer drill rod cored for negative pressure
CN110984878B (en) Rope coring drilling device for urban deep-buried tunnel exploration hole
CN107013168A (en) A kind of drilling rig for hard coal seam
CN208534406U (en) A kind of coal mine boring assemblies that can intert gas drainage pipe
CN109323884A (en) A kind of star earth coring soft bag drawstring setting fastening Quick seal component
CN205477476U (en) Core claw for core is got to scall
CN109973019A (en) PDC drill bit with longitrorse coupled surge function
CN108590532A (en) A kind of coal mine open and close type drill bit
CN200990460Y (en) Intelligent well-drilling cable transmission electric joint
CN204941494U (en) A kind of bridge type eccentric injection mandrel
CN203285360U (en) Seismic exploration compound drilling drill rod
CN204200199U (en) A kind of 4.5 inches of special pressure limiting warmers of natural gas well down-hole casing
CN110344767B (en) Vertical shaft excavating equipment connected and stabilized by using centrifugal force
CN208010299U (en) A kind of reinforcement back-off device
CN101936143A (en) Reclaimable drilling rig device

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