CN109000012A - A kind of core drilling rig fluid passage actuating mechanism - Google Patents
A kind of core drilling rig fluid passage actuating mechanism Download PDFInfo
- Publication number
- CN109000012A CN109000012A CN201810917821.XA CN201810917821A CN109000012A CN 109000012 A CN109000012 A CN 109000012A CN 201810917821 A CN201810917821 A CN 201810917821A CN 109000012 A CN109000012 A CN 109000012A
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- hole
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- cut
- locking
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- 239000012530 fluid Substances 0.000 title claims abstract description 42
- 238000005553 drilling Methods 0.000 title claims abstract description 25
- 230000007246 mechanism Effects 0.000 title claims abstract description 18
- 238000003780 insertion Methods 0.000 claims abstract description 6
- 230000037431 insertion Effects 0.000 claims abstract description 6
- 208000004141 microcephaly Diseases 0.000 claims description 9
- 230000003447 ipsilateral effect Effects 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 abstract description 14
- 239000011435 rock Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000977 initiatory effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/40—Safety valves; Equalising valves, e.g. pressure relief valves with a fracturing member, e.g. fracturing diaphragm, glass, fusible joint
- F16K17/403—Safety valves; Equalising valves, e.g. pressure relief valves with a fracturing member, e.g. fracturing diaphragm, glass, fusible joint with a fracturing valve member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/40—Safety valves; Equalising valves, e.g. pressure relief valves with a fracturing member, e.g. fracturing diaphragm, glass, fusible joint
- F16K17/406—Safety valves; Equalising valves, e.g. pressure relief valves with a fracturing member, e.g. fracturing diaphragm, glass, fusible joint the fracturing member being a generally elongated member, e.g. rod or wire, which is directly connected to a movable valve member, the breaking or buckling of the elongated member allowing the valve member to move to a closed or open position
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The present invention discloses a kind of core drilling rig fluid passage actuating mechanism, including lock body, locking level, it cuts off, center-pole, lock body is followed successively by lock segments from rear to preceding, seal section and fluid passage section, lock segments side wall cuts off hole, locking level is in lock body, locking level is followed successively by linkage section from rear to preceding, flow out section, closed section and inflow segment, linkage section outer wall is fluted, it cuts off and is cutting off in hole and groove, outflow section side wall is provided with tap hole, inflow segment side wall is provided with inflow hole, center-pole is in locking level, fluid passage section inner cavity is connected to inflow segment inner cavity by inflow hole, before starting, cut off across cut off hole insertion groove, the closing of tap hole opening of external wall, after starting, locking level Forward, cut off cutting, head is cut off to cut off in hole, tail is cut off in groove, outflow section inner cavity is connected to fluid passage section inner cavity by tap hole.Core drilling rig fluid passage actuating mechanism provided by the invention before starting, blocks flow channel for liquids, after starting, provides to workpiece hydraulic.
Description
Technical field
The present invention relates to drilling extracting core system more particularly to a kind of core drilling rig fluid passage actuating mechanisms.
Background technique
During oil field prospecting, core is discovery oil-gas Layer and research stratum, source bed, oil reservoirs, cap rock, construction etc.
Capsule information lithology, physical property and oil-containing, the gas and water of subterranean strata can directly be understood by the observational study to core
Attitude Characteristics.After the investment exploitation of oil field, oil reservoir deposition characteristics, the physical property of reservoir, hole are further studied and recognized by core
Gap structure, wetability, relative permeability, lithofacies characteristics, reservoir physics simulation and reservoir water flooding rule；Understanding and grasp difference are opened
It hair stage, different water cut stages reservoir water flooding feature, gets remaining oil distribution clear, is designed for oilfield development program, series of strata, well pattern tune
Whole and Encryption Well provides scientific basis.
Coring is that subsurface rock is got on ground blockingly using special coring tool in drilling process, this
The blocking rock of kind is called core, and the various properties of rock can be measured by it, and intuitively Study of The Underground construction and rock are heavy
Product environment, understands fluid properties therein etc..In mineral exploration and development process, need by geological design stratigraphic horizon and
Depth carries out drilling work, the tripping in coring tool into well, the rock sample drilled through out.
Downhole temperature is high, and electrical equipment is not available, and liquid need to be blocked before hydraulic device starting by being often used hydraulic device
Runner after starting, should make flow channel for liquids unimpeded, and hydraulic, driving hydraulic motor is provided to workpiece, cold to remove drill bit of drilling machine.
Summary of the invention
The present invention is intended to provide a kind of core drilling rig fluid passage actuating mechanism, before starting, blocks flow channel for liquids, after starting, to
Workpiece provides hydraulic.
In order to achieve the above objectives, The technical solution adopted by the invention is as follows:
Core drilling rig fluid passage actuating mechanism disclosed by the invention, including lock body, locking level, cut off, center-pole, the lock body
Front and back perforation, lock body are followed successively by lock segments, seal section and fluid passage section from rear to preceding, and lock segments side wall cuts off hole, cuts off hole and is
Through-hole, locking level front and back perforation, for locking level in lock body, locking level is followed successively by linkage section, outflow section, closing from rear to preceding
Section and inflow segment, linkage section outer wall is fluted, and the length that cuts off is described to cut off greater than the hole depth that cuts off on lock body side wall
It cuts off in hole and groove, outflow section side wall is provided with tap hole, and inflow segment side wall is provided with inflow hole, and the center-pole is in locking level
Interior, the seal section internal diameter is equal to closed section outer diameter, and the fluid passage section internal diameter is greater than locking level outer diameter, the linkage section, outflow
The internal diameter of section and inflow segment is greater than center-pole outer diameter, and the closed section internal diameter is equal to center-pole outer diameter, and the seal section front end is arrived
The axial distance of lock body rear end is less than closed section front end to the axial distance of lock body rear end, and fluid passage section inner cavity and inflow segment inner cavity are logical
Inflow hole connection is crossed, is cut off across hole insertion groove is cut off, the axial distance of tap hole opening of external wall to lock body rear end is less than liquid
Axial distance of the road section rear end to lock body rear end.
Further, the lock segments internal diameter is greater than seal section internal diameter, and the linkage section outer wall has a lug boss, outside lug boss
Diameter is greater than seal section internal diameter, and outer diameter is equal to seal section internal diameter in front of linkage section lug boss, and the groove is in lug boss.
Further, the tap hole turns forward from inside to outside.
Further, the tap hole has multiple, and radially even circumferential is distributed multiple tap holes.
Further, the inflow hole has multiple, and inflow hole is distributed before and after not ipsilateral.
Further, the linkage section is threadedly coupled with outflow section, the closed section and inflow segment welding.
It further, further include locking nut, locking nut perforation, center-pole before and after lock body rear, locking nut are worn
Locking nut inner cavity is crossed, locking nut front end is threadedly coupled with lock body rear end, and it cuts off hole and is opened at the screw thread of lock body rear end, locking screw
The radial distance of female inner wall to groove-bottom, which is not less than, cuts off length.
Further, the locking nut includes fixed section and thread segment, and linkage section lug boss rear outer diameter, which is less than, to be fixed
Section internal diameter is less than lobes outside diameter, and thread segment internal diameter is equal to lock segments outer diameter.
Further, the head that cuts off includes major part and microcephaly, and outwardly, large head external diameter is greater than small head external diameter to major part, described
Cutting off hole includes outer segment and inner segment, and not less than a large head external diameter is cut off, inner segment aperture, which is not less than, to be cut off outside a microcephaly in outer segment aperture
Diameter, inner segment aperture are less than large head external diameter, and outer segment depth is not less than major part length, microcephaly with cutting off tail length degree and to be greater than inner segment deep
Degree.
Further, the locking nut is axially provided with locking hole A, and the locking hole A is to cut off hole, and lock body rear end face has
Locking hole B, locking hole B are blind hole, locking hole A and locking hole B pairing, further include fixing screws, and fixing screws length is greater than lock
Tieholen A depth, in locking hole A, fixing screws front end passes through in locking hole A insertion locking hole B fixing screws.
The invention has the following advantages:
1, before starting, fixing lock fixed pole is cut off, tap hole is shut in seal section, tap hole opening of external wall, and liquid is nothing
Method outflow, hydraulic when the offer of rear slush pump reach initiation value, thrust and cut off, and locking level Forward, liquid flows through outside center-pole
Wall and linkage section inner wall, the flow channel for liquids that liquid section inner wall is formed out enter fluid passage section inner wall and inflow segment outer wall shape by tap hole
At flow channel for liquids, flowing into the flow channel for liquids and front hydraulic motor that center-pole outer wall and inflow segment inner wall are formed through inflow hole
It is connected to drill bit of drilling machine, starts hydraulic motor, cooling drill bit of drilling machine；
2, lobes outside diameter is greater than seal section internal diameter, limits the distance that locking level moves forward, locking level is made to reach work
It is no longer moved forward behind position；
3, locking nut is set, and locking nut is threadedly coupled with lock body, and linkage section is threadedly coupled with outflow section, convenient for peace
Dress, replacement are cut off；
4, locking hole A, locking hole B and fixing screws cooperation, limitation circumferentially rotate；
5, cutting off head includes major part and microcephaly, and cutting off hole includes outer segment and inner segment, can limit to cut off and moves radially inwardly.
Detailed description of the invention
Fig. 1 is schematic diagram before the present invention starts；
Fig. 2 is schematic diagram after present invention starting；
In figure: 1- center-pole, 2- locking level, 21- linkage section, 211- lug boss, 212- groove, 22- outflow section, 221- stream
Portal, 23- closed section, 24- inflow segment, 241- inflow hole, 3- lock body, 31- lock segments, 32- seal section, 33- fluid passage section, 4- lock
Tight nut, 5- is cut off, 51- cuts off head, 52- cuts off tail, 6- fixing screws, 71- flow out section inner cavity, 72- fluid passage section inner cavity, 73-
Inflow segment inner cavity.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing, to the present invention into
Row is further described.
As shown in Figure 1 and Figure 2, core drilling rig fluid passage actuating mechanism disclosed by the invention, including lock body 3 pass through before and after lock body 3
Logical, lock body 3 is followed successively by lock segments 31, seal section 32 and fluid passage section 33 from rear to preceding, and 31 side wall of lock segments cuts off hole, cuts off hole
Further include locking level 2 for through-hole, penetrated through before and after the locking level 2, locking level 2 in lock body 3, locking level 2 from it is rear to preceding successively
It is threadedly coupled for linkage section 21, outflow section 22, closed section 23 and inflow segment 24, linkage section 21 with outflow section 22,23 He of closed section
Inflow segment 23 welds, 21 outer wall of linkage section fluted 212, and groove 212 is annular groove, further includes cutting off 5, cuts off 5 length and be greater than
Hole depth is cut off, 5 is cut off and is cutting off in hole and groove 212, outflow 22 side wall of section is provided with tap hole 221, and tap hole 221 is by introversion
It turns forward outside, tap hole 221 has multiple, and radially even circumferential is distributed multiple tap holes 221, and 24 side wall of inflow segment is provided with stream
Entering hole 241, inflow hole 241 has multiple, and it further includes center-pole 1 that inflow hole 241 is distributed before and after inflow segment 24 not ipsilateral, in
In locking level 2,32 internal diameter of seal section is equal to 23 outer diameter of closed section and is equal to outflow 22 outer diameter of section core bar 1, and 33 internal diameter of fluid passage section is big
It is greater than 1 outer diameter of center-pole, 23 internal diameter of closed section etc. in the internal diameter of 2 outer diameter of locking level, linkage section 21, outflow section 22 and inflow segment 24
It is less than 23 front end of closed section to 3 rear end of lock body in the axial distance of 1 outer diameter of center-pole, 32 front end of seal section to 3 rear end of lock body
Axial distance, 33 inner wall of fluid passage section and 24 outer wall of inflow segment surround fluid passage section inner cavity 72,24 inner wall of inflow segment and 1 outer wall of center-pole
Inflow segment inner cavity 73 is surrounded, 1 outer wall of center-pole and outflow 22 inner wall of section, 21 inner wall of linkage section surround outflow section inner cavity 71, fluid passage
Section inner cavity 72 is connected to inflow segment inner cavity 73 by inflow hole 241, and 31 internal diameter of lock segments is greater than 32 internal diameter of seal section, linkage section 21
Outer wall has lug boss 211, and 211 outer diameter of lug boss is greater than 32 internal diameter of seal section, and 21 lug boss of linkage section, 211 front outer diameter is equal to close
32 internal diameter of section is sealed, groove 212 further includes locking nut 4, locking nut 4 is in 3 rear of lock body, locking nut 4 in lug boss 211
Front and back perforation, center-pole 1 pass through 4 inner cavity of locking nut, and 4 front end of locking nut is threadedly coupled with 3 rear end of lock body, cuts off hole and be opened in
At 3 rear end screw thread of lock body, the radial distance of 4 inner wall of locking nut to 212 bottom of groove is wrapped not less than 5 length, locking nut 4 is cut off
Fixed section and thread segment are included, 21 lug boss of linkage section, 211 rear outer diameter is less than fixed section internal diameter and is less than 211 outer diameter of lug boss, spiral shell
Line section internal diameter is equal to 31 outer diameter of lock segments, and locking nut 4 is axial to be provided with locking hole A, and locking hole A is to cut off hole, 3 rear end face of lock body
Having locking hole B, locking hole B is blind hole, locking hole A and locking hole B pairing, further includes fixing screws 6,6 length of fixing screws is big
In locking hole A depth, in locking hole A, 6 front end of fixing screws passes through in locking hole A insertion locking hole B fixing screws 6.
Before starting, 5 are cut off across hole is cut off and is embedded in groove 212, the axial direction of 221 opening of external wall of tap hole to 3 rear end of lock body
Distance is less than 33 rear end of fluid passage section to the axial distance of 3 rear end of lock body, and 221 opening of external wall of tap hole is closed by seal section 32, liquid
Body is unable to flow forward, rear slush pump provide it is hydraulic reach initiation value after, impact 2 rear end of locking level, subtract it is disconnected cut off 5, cut
Pin 5 breaks to cut off first 51 and cut off tail 52, cuts off first 51 and is cutting off in hole, cuts off tail 52 in groove 212, and locking level 2 moves forward,
221 opening of external wall of tap hole to 3 rear end of lock body axial distance be greater than 33 rear end of fluid passage section to 3 rear end of lock body axial distance,
Outflow section inner cavity 71 is connected to fluid passage section inner cavity 72 by tap hole 221, and fluid passage connection, liquid enters flow channel for liquids flow direction
The hydraulic motor and cooling drill bit of drilling machine in front driving front.
Cut off first 51 include major part and microcephaly, major part outwardly, large head external diameter be greater than small head external diameter, cut off hole include outer segment and
Inner segment, outer segment aperture are not less than large head external diameter, and inner segment aperture is not less than small head external diameter, and inner segment aperture is less than large head external diameter, outer segment
Depth be not less than major part length, microcephaly with cut off 52 length of tail and be greater than inner segment depth.
21 lug boss of linkage section, 211 outer diameter is 56mm, internal diameter 36mm, overall length 106mm, 21 lug boss 211 of linkage section
Front, rear outer diameter are 50mm, and 212 depth 6mm of groove, 211 rear end of lug boss is apart from 21 rear end 15mm of linkage section, groove 212
Front end is apart from linkage section rear end 27.8mm, and 212 width 5.5mm of groove, 212 front end of groove is apart from 21 front end 73mm of linkage section, connection
21 side walls of section are also provided with the through-hole that an aperture is 8mm, and the through-hole hole heart is apart from 21 front end 65mm of linkage section, 21 nose threads of linkage section
Place's outer diameter is 43mm, and screw thread is M45 × 1.5mm, and the length that linkage section 21 is threadedly coupled with outflow section 22 is 39mm.
It flowing out section 22 and 23 outer diameter of closed section is 50mm, outflow 22 internal diameter of section is 36mm, and 221 aperture of tap hole is 8mm,
Tap hole 221 and axial angle are 45 °, 221 opening of external wall front end of tap hole distance outflow 22 rear end 152mm of section, tap hole 221
There are 6, flow out section 22 and 23 overall length 196mm of closed section, 23 internal diameter of closed section is 25mm, and 241 aperture of inflow hole is 16mm, is flowed into
Hole 241 has 4, respectively 4 sides, 4 241 hole hearts of inflow hole apart from 24 rear end of inflow segment distance be respectively 39mm, 55mm,
71mm and 87mm, 24 internal diameter of inflow segment is 40.5mm, 24 outer diameter of inflow segment is 44.5mm, and 1 outer diameter of center-pole is 25mm.
31 outer diameter of lock segments is 82mm, internal diameter 56mm, cuts off Kong Kongxin apart from 31 rear end 8mm of lock segments, lock segments 31
Long 56mm, cutting off hole outer segment aperture is 8mm, and deep 5mm, inner segment aperture is 5mm, depth 8mm, and 32 outer diameter of seal section is
99.6mm, internal diameter 50mm, seal section 32 is 176mm long, and 33 internal diameter of fluid passage section is 70mm.
5 overall length 16.5mm are cut off, the first long 3.5mm of 51 major part, outer diameter 7mm are cut off, cutting off first 51 small head external diameter is
4.8mm, cut off first 51 microcephaly with cut off 52 length of tail and for 13mm.
Certainly, the present invention can also have other various embodiments, without deviating from the spirit and substance of the present invention, ripe
Various corresponding changes and modifications, but these corresponding changes and modifications can be made according to the present invention by knowing those skilled in the art
All it should fall within the scope of protection of the appended claims of the present invention.
Claims (10)
1. a kind of core drilling rig fluid passage actuating mechanism, it is characterised in that: including lock body (3), locking level (2), cut off (5), center
Bar (1), lock body (3) front and back perforation, lock body (3) are followed successively by lock segments (31), seal section (32) and fluid passage section from rear to preceding
(33), lock segments (31) side wall cuts off hole, and cutting off hole is through-hole, penetrates through before and after the locking level (2), locking level (2) is being locked
In body (3), locking level (2) is followed successively by linkage section (21), outflow section (22), closed section (23) and inflow segment (24) from rear to preceding,
Linkage section (21) outer wall is fluted (212), and (5) length that cuts off is described to cut greater than the hole depth that cuts off on lock body (3) side wall
Pin (5) is being cut off in hole and groove (212), and outflow section (22) side wall is provided with tap hole (221), and inflow segment (24) side wall is provided with stream
Enter hole (241), for the center-pole (1) in locking level (2), seal section (32) internal diameter is equal to closed section (23) outer diameter, institute
Fluid passage section (33) internal diameter is stated greater than locking level (2) outer diameter, the linkage section (21), the internal diameter for flowing out section (22) and inflow segment (24)
Greater than center-pole (1) outer diameter, closed section (23) internal diameter is equal to center-pole (1) outer diameter, seal section (32) front end to lock
The axial distance of body (3) rear end is less than axial distance of closed section (23) front end to lock body (3) rear end, fluid passage section (33) inner cavity
(72) it is connected to inflow segment (24) inner cavity (73) by inflow hole (241), cuts off (5) across hole insertion groove (212) is cut off, flow
The axial distance of (221) opening of external wall of portalling to lock body (3) rear end is less than fluid passage section (33) rear end to the axial direction of lock body (3) rear end
Distance.
2. core drilling rig fluid passage actuating mechanism according to claim 1, it is characterised in that: lock segments (31) internal diameter is big
In seal section (32) internal diameter, linkage section (21) outer wall has lug boss (211), and lug boss (211) outer diameter is greater than seal section
(32) internal diameter, linkage section (21) lug boss (211) front outer diameter are equal to seal section (32) internal diameter, and the groove (212) is in protrusion
Portion (211).
3. core drilling rig fluid passage actuating mechanism according to claim 1, it is characterised in that: the tap hole (221) is by interior
It turns forward outward.
4. core drilling rig fluid passage actuating mechanism according to claim 1, it is characterised in that: the tap hole (221) has more
A, radially even circumferential is distributed multiple tap holes (221).
5. core drilling rig fluid passage actuating mechanism according to claim 1, it is characterised in that: the inflow hole (241) has more
A, inflow hole is distributed before and after not ipsilateral.
6. core drilling rig fluid passage actuating mechanism according to claim 1, it is characterised in that: the linkage section (21) and outflow
Section (22) is threadedly coupled, the closed section (23) and inflow segment (24) welding.
7. core drilling rig fluid passage actuating mechanism according to claim 2, it is characterised in that: it further include locking nut (4), lock
The perforation before and after lock body (3) rear, locking nut (4) of tight nut (4), center-pole (1) pass through locking nut (4) inner cavity, locking
Nut (4) front end is threadedly coupled with lock body (3) rear end, is cut off hole and is opened at the screw thread of lock body (3) rear end, locking nut (4) inner wall
Radial distance to groove (212) bottom, which is not less than, cuts off (5) length.
8. core drilling rig fluid passage actuating mechanism according to claim 7, it is characterised in that: the locking nut (4) includes
Fixed section and thread segment, linkage section (21) lug boss (211) rear outer diameter are less than fixed section internal diameter and are less than lug boss (211) outside
Diameter, thread segment internal diameter are equal to lock segments (31) outer diameter.
9. core drilling rig fluid passage actuating mechanism according to claim 1, it is characterised in that: after starting, before locking level (2)
It moves, cuts off (5) cutting, cut off head (51) and cutting off in hole, cut off tail (52) in groove (212), it is described to cut off head (51) packet
Major part and microcephaly are included, outwardly, large head external diameter is greater than small head external diameter to major part, and the hole that cuts off includes outer segment and inner segment, outer segment aperture
Not less than head (51) large head external diameter is cut off, inner segment aperture is less than outside major part not less than head (51) small head external diameter, inner segment aperture is cut off
Diameter, outer segment depth be not less than major part length, microcephaly with cut off tail (52) length and be greater than inner segment depth.
10. core drilling rig fluid passage actuating mechanism according to claim 7, it is characterised in that: the locking nut (4) is axial
It is provided with locking hole A, the locking hole A is to cut off hole, and it is blind hole, locking hole A that lock body (3) rear end face, which has locking hole B, locking hole B,
It is matched with locking hole B, further includes fixing screws (6), fixing screws length (6) is greater than locking hole A depth, and fixing screws (6) exist
In locking hole A, fixing screws (6) front end is passed through in locking hole A insertion locking hole B.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810917821.XA CN109000012B (en) | 2018-08-13 | 2018-08-13 | Liquid channel starting mechanism of coring drilling machine |
| PCT/CN2018/109034 WO2020034364A1 (en) | 2018-08-13 | 2018-09-30 | Core drilling rig liquid channel starting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810917821.XA CN109000012B (en) | 2018-08-13 | 2018-08-13 | Liquid channel starting mechanism of coring drilling machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109000012A true CN109000012A (en) | 2018-12-14 |
| CN109000012B CN109000012B (en) | 2023-10-24 |
Family
ID=64595941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810917821.XA Active CN109000012B (en) | 2018-08-13 | 2018-08-13 | Liquid channel starting mechanism of coring drilling machine |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109000012B (en) |
| WO (1) | WO2020034364A1 (en) |
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| CN109973035A (en) * | 2018-12-26 | 2019-07-05 | 深圳大学 | Rock sample fidelity coring system |
| CN111322025A (en) * | 2020-02-22 | 2020-06-23 | 深圳大学 | Moon self-tunneling coring robot device and system |
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Also Published As
| Publication number | Publication date |
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| WO2020034364A1 (en) | 2020-02-20 |
| CN109000012B (en) | 2023-10-24 |
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