CN209586312U - Core drilling rig ends automatically mechanism - Google Patents

Abstract

Core drilling rig disclosed by the utility model ends automatically mechanism, including choked flow module, pressure release module and center-pole, choked flow module is in front of pressure release module, choked flow module includes valve housing, lock shell, lock sleeve, fixed ring, outer cylinder and emergency gear, pressure release module includes lock pin, locking level, connecting tube, lock body and shearing plunger, connection tube wall has relief hole, lock body and shearing plunger are by cutting off connection, choked flow module is at hydraulic motor rear, block flow channel for liquids, pressure release module shears plunger by hydraulic recoil pull, opens pressure release passage.Core drilling rig provided by the utility model ends automatically mechanism, blocks hydraulic channel automatically after certain depth being got under drilling machine, stops energizing to hydraulic motor, and venting drilling machine internal hydraulic pressure.

Description

Core drilling rig ends automatically mechanism

Technical field

The utility model relates to drilling extracting core systems more particularly to core drilling rig to end automatically mechanism.

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.

After drilling machine gets into certain depth, need venting drilling machine internal hydraulic pressure, stop boring, prevent motor persistently rotate to drill bit and The damage of core.

Utility model content

The utility model is intended to provide core drilling rig and ends automatically mechanism, can get under drilling machine after certain depth and hinder automatically Disconnected hydraulic channel stops energizing to hydraulic motor, and venting drilling machine internal hydraulic pressure.

In order to achieve the above objectives, the technical solution adopted in the utility model is as follows:

Core drilling rig disclosed by the utility model ends automatically mechanism, including choked flow module, pressure release module and center-pole, resistance Flow module is in front of pressure release module；

Choked flow module: including valve housing, lock shell, lock sleeve, fixed ring and outer cylinder, center-pole, valve housing, lock are outer Shell, lock sleeve, fixed ring and outer cylinder are coaxial, and center-pole passes through valve housing inner cavity, and valve housing in lock shell, wear by lock shell Lock sleeve inner cavity is crossed, valve housing includes that seal section, diversion section and locking section A, the locking section A outer wall are provided with lock from back to front Tight slot A, lock shell include inflow segment, outflow section and locking section B from back to front, and the inflow segment internal diameter is greater than seal section outer diameter, Seal section outer diameter is greater than diversion section outer diameter, and the outflow section internal diameter is equal to seal section outer diameter, and outflow section is provided with tap hole, locking section There is locking hole on B, tap hole and locking hole are through-hole, there is lock ball in locking hole, and locking bulb diameter is greater than locking hole depth, Lock sleeve includes impact section and locking section C from back to front, and locking section C inner wall has locking slot B, the locking slot A slot bottom to locking The distance of section B inner wall is less than locking bulb diameter, and the distance of the locking slot A slot bottom to locking section B outer wall is straight not less than lock ball Diameter, the distance of the locking slot B slot bottom to locking section B outer wall are less than locking bulb diameter, the locking slot B slot bottom to locking section B The distance of inner wall is not less than locking bulb diameter, and the fixed ring is fixed on locking section B outer wall, and fixed ring is in locking hole rear, punching Section internal diameter is hit greater than fixed ring outer diameter, for locking section C in front of fixed ring, the outer cylinder internal diameter is greater than the outer of lock shell and lock sleeve Diameter, outer tube inner wall are connected with emergency gear, and emergency gear includes card-tight part and press section from back to front, and press section front end face internal diameter is small In impact section outer diameter, press section internal diameter is not less than fixed ring outer diameter, and card-tight part front end face internal diameter is less than fixed ring rear end face outer diameter, Center-pole front end is connected with spacing head, and spacing head is in locking section B, and spacing head is in front of locking section A, spacing head outer wall and lock shell The gap of inner wall is less than locking section A nose thickness, and the axial distance of card-tight part front end face to press section front end face is equal to before stopping brill The locking hole hole heart is to the axial distance at the center locking slot B, and seal section rear end is to the distance of tap hole rear end greater than stopping boring before stopping boring The axial distance at the locking hole hole heart to the center locking slot A is greater than the distance for stopping boring preceding seal section front end to tap hole front end afterwards；

Pressure release module: including lock pin, locking level, connecting tube, lock body and shearing plunger, center-pole, lock pin, locking level, company Adapter tube, lock body and shearing plunger are coaxial, and lock pin includes interconnecting piece and work department from back to front, and interconnecting piece connects locking level, center Bar passes through lock pin and locking level inner cavity, and center-pole outer diameter is less than lock pin and locking level internal diameter, and locking level side wall is provided with inflow hole, even Adapter tube includes linkage section, pressure release section and choked flow section from back to front, and work department outer diameter is equal to choked flow section internal diameter, and choked flow section internal diameter is less than Pressure release section internal diameter, pressure release section are provided with relief hole, and relief hole is through-hole, and linkage section is connect with lock body, and lock body inner wall, which is radially provided with, to be cut Pin hole cuts off in hole and cuts off, and cuts off length greater than hole depth, shearing plunger internal diameter is cut off and is greater than lock pin and locking level outer diameter, Shearing plunger includes cut section and recoil section from back to front, and cut section outer diameter is equal to lock body internal diameter, and recoil section outer diameter is equal to pressure release Section relief hole forward portion internal diameter, cut section outer wall, which is provided with, cuts off slot, before stopping brill, recoils section front end in front of relief hole front end, It cuts off inner end insertion and cuts off slot, after stopping brill, section front end of recoiling is at relief hole front end rear；

It is fluid passage A, shearing plunger inner wall, connection inside pipe wall and locking between center-pole outer wall and locking level and lock pin inner wall It is fluid passage B between bar and lock pin outer wall, is fluid passage C between inflow segment inner wall and center-pole outer wall, fluid passage A is connected to fluid passage C, liquid Road A is connected to fluid passage B by inflow hole, and the rear fluid passage B is connected to liquid supply equipment, and before stopping brill, seal section front end is in inflow segment, fluid passage C is connected to tap hole, and after stopping brill, seal section and outflow section sealing cooperate, and fluid passage C and tap hole separate.

Further, the front end the locking section C passes through spring supporting.

Further, outflow section outer diameter is greater than locking section B outer diameter, and the fixed ring internal diameter is equal to locking section B outer diameter.

It further, further include snap ring, snap ring outer diameter is greater than fixed ring internal diameter, and snap ring internal diameter is less than fixed ring internal diameter, card Ring is embedded in the card slot of locking section B outer wall, and fixed ring is connected between snap ring rear end and outflow section front end.

Further, the recoil section outer wall is provided with seal groove A, has sealing ring in seal groove A.

Further, the lock body inner wall is provided with seal groove B, has sealing ring in seal groove B, seal groove B is before cutting off hole Side.

Further, the lock body is threadedly coupled with connecting tube, and lock body front end is external screw thread, and connecting tube rear end is interior spiral shell Line, the hole that cuts off is through-hole, cuts off hole at lock body screw thread.

Further, the lock pin is threadedly coupled with locking level.

Further, slot, locking slot A and the locking slot B of cutting off is annular groove.

Further, the connection pipe outer wall is provided with diversion trench, and immediately ahead of relief hole, diversion trench is axially set diversion trench It sets, diversion trench is connected to relief hole.

The utility model has the following beneficial effects:

1, before stopping brill, lock ball locks valve housing in locking hole and locking slot A, and fluid passage C is kept to pass through tap hole It is connected to front hydraulic motor, when outer cylinder moves forward to stop position, outer cylinder drives emergency gear to hit lock sleeve, makes to lock Set Forward, locking slot B and locking hole face, release lock ball radial constraint, hydraulic shock valve housing rear end, and lock ball is squeezed It is pressed into locking slot B, valve housing Forward, seal section separates fluid passage C and tap hole, stops powered motors forwards, horse It is gushed after liquid since fluid passage C is blocked up to stalling, flows into fluid passage B, recoil shearing plunger front end, shearing plunger is by backward Power, cutting are cut off, and shearing plunger moves back, and recoil section front end moves on to relief hole rear, and fluid passage B is connected to by relief hole with outside, Liquid is discharged from relief hole；

2, cut off can before stopping boring fixed shear plunger, separate fluid passage B and relief hole, guarantee liquid from fluid passage A forward Fang Liudong；

3, lock body and connecting tube are threadedly coupled, and cut off hole at screw thread, are easily installed, are replaced and cut off.

Detailed description of the invention

Fig. 1 is that choked flow module stops boring preceding schematic diagram；

Fig. 2 is that choked flow module stops schematic diagram after boring；

Fig. 3 is that pressure release module stops boring preceding schematic diagram；

Fig. 4 is that pressure release module stops schematic diagram after boring；

In figure: 1- valve housing, 11- seal section, 12- diversion section, 13- locking section A, 131- locking slot A, 2- lock shell, 21- inflow segment, 22- flow out section, 221- tap hole, 23- locking section B, 231- locking hole, 232- lock ball, 3- lock sleeve, 31- Impact section, 32- locking section C, 321- locking slot B, 322- seal groove C, 33- spring, 4- fixed ring, 41- snap ring, 5- outer cylinder, 51- Emergency gear, 511- card-tight part, 512- press section, 6- center-pole, 61- spacing head, 71- lock body, 711- cut off hole, 712- sealing Slot B, 72- connecting tube, 721- linkage section, 722- pressure release section, 7221- relief hole, 7222- diversion trench, 723- choked flow section, 81- lock Fixed pole, 811- inflow hole, 82- lock pin, 821- interconnecting piece, 822- work department, 9- shearing plunger, 91- cut section, 911- are cut off Slot, 92- recoil section, 921- seal groove A, 101- fluid passage A, 102- fluid passage B, 103- fluid passage C.

Specific embodiment

In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing, to this reality It is further elaborated with novel.

As Figure 1-Figure 4, core drilling rig disclosed by the utility model ends automatically mechanism, including choked flow module, pressure release Module and center-pole 6, choked flow module is in front of pressure release module；

Choked flow module: including valve housing 1, lock shell 2, lock sleeve 3, fixed ring 4 and outer cylinder 5, center-pole 6, valve shell Body 1, lock shell 2, lock sleeve 3, fixed ring 4 and outer cylinder 5 are coaxial, and center-pole wears 6 and crosses 1 inner cavity of valve housing, and valve housing 1 is being locked In shell 2, lock shell 2 passes through 3 inner cavity of lock sleeve, and locking has lock ball 232 in shell 2, and lock shell 2 and valve housing 1 pass through lock The tight locking of ball 232 or constraint relief, lock shell 2 is locked with lock sleeve 3 by lock ball 232 or constraint relief, and before stopping brill, lock is outer Shell 2 and valve housing 1 are locked, and keep fluid passage unobstructed, 5 built-in security gear 51 of outer cylinder, when outer cylinder 5 is advanced to defined position, outside Cylinder 5 drives emergency gear 51 to hit lock sleeve 3, makes to move outside lock ball 232, releases the constraint to valve housing 1, valve housing 1 Forward, sealing liquid runner stop boring.

6 outer diameter of center-pole be 20mm, valve housing 1 from back to front include seal section 11, diversion section 12 and locking section A13, 1 overall length 119.5mm of valve housing, 11 outer diameter of seal section are 32mm, internal diameter 22mm, long 20mm, 11 rear end inner wall of seal section to Inside there is raised A, internal diameter is 21mm at raised A, and 12 outer diameter of diversion section is 25.7mm, internal diameter 22mm, long 26mm, before diversion section 12 End inner wall inwardly has raised B, and internal diameter is 21mm raised B at, and locking section A13 outer diameter is 32mm, internal diameter 22mm, outside diversion section 12 Wall with 11 outer wall of seal section and locking section A13 outer wall by being connect with the inclined-plane of radial section angle at 45 °, locking section A13 Outer wall is provided with locking slot A131, and locking slot A131 is annular groove, locking slot A131 depth 3.15mm, the wide 5mm of locking slot A131 slot bottom, Locking slot A131 slot bottom front end apart from 1 front end 10mm of valve housing, locking section A13 outer wall and locking slot A131 slot bottom by with diameter It is connected to the inclined-plane of section angle at 45 °.

Lock shell 2 includes inflow segment 21, outflow section 22 and locking section B23,21 outer diameter 50mm of inflow segment, internal diameter from back to front 40mm, long 30mm flow out 22 outer diameter 50mm of section, and internal diameter 32mm, long 18mm, 21 inner wall of inflow segment and outflow 22 inner wall of section pass through tiltedly Face connection, outflow section 22 are provided with the tap hole 221 that aperture is 8mm, and tap hole 221 is through-hole, and tap hole 221 has 8, same For axial position along outflow section even circumferential distribution, the axial distance of the 221 hole heart of tap hole to outflow 22 front end of section is 8.5mm, lock Tight section B23 outer diameter is 46mm, there is locking hole 231 on internal diameter 32mm, locking section B23, and locking hole 231 is through-hole, locking hole 231 Aperture is 10.1mm, and locking hole 231 has 3, and locking hole 231 is distributed in same axial position along locking section B23 even circumferential, lock The axial distance of the 231 hole heart of tieholen to outflow 22 front end of section is 60mm, and locking section B23 outer wall is also provided with annular slot, after card slot End distance outflow 22 front end axial distance of section is 20mm, and card slot width is 2mm, and card slot depth is 1.5mm, is had in locking hole 231 Lock ball 232, lock ball 232 are steel ball, and 232 diameter of lock ball is greater than 231 depth of locking hole, locking slot A131 slot bottom to locking The distance of section B23 inner wall is less than 232 diameter of lock ball, and the distance of locking slot A131 slot bottom to locking section B23 outer wall is not less than lock 232 diameter of tight ball.

3 outer diameter of lock sleeve is 65mm, and a length of 133mm, lock sleeve 3 includes impact section 31 and locking section C32, punching from back to front Hitting 31 internal diameter of section is 59.3mm, long 20mm, there is snap ring section between impact section 31 and locking section C32, and snap ring section internal diameter 56mm is long 2mm, locking section C32 internal diameter are 46mm, and locking section C32 inner wall has a locking slot B321, behind the center locking slot B321 to impact section 31 End axial distance is 40mm, and locking slot B321 is annular groove, and the wide 6.5mm of locking slot B321 slot bottom, locking slot B321 depth is 3.5mm, locking slot B321 slot bottom are connect with locking section C32 outer wall by the inclined-plane for being 45 ° with radial section angle, locking section C32 is provided with seal groove C322, has sealing ring in seal groove C322, seal groove C322 is in the rear locking slot B321, seal groove C322 Apart from 31 rear end 28.4mm of impact section, seal groove C322 width is 3.4mm for front end, and the front end locking section C32 is supported by spring 33, The distance of locking slot B321 slot bottom to locking section B23 outer wall is less than 232 diameter of lock ball, locking slot B321 slot bottom to locking section The distance of B23 inner wall is not less than 232 diameter of lock ball.

Fixed ring 4 is steel loop, and 4 outer diameter of fixed ring is 58.7mm, internal diameter 46mm, length 20mm, and 4 outer wall of fixed ring has Anti-skid chequer, fixed ring 4 are fixed on locking section B23 outer wall, and end in contact before 4 rear end of fixed ring and outflow section 22,4 front end of fixed ring leads to The fixation of snap ring 41 for being partially submerged into locking section B23 outer wall card slot, locking hole 231 and locking section C32 are crossed in 4 front of fixed ring, card 41 outer diameter of ring is greater than 4 internal diameter of fixed ring, and 41 internal diameter of snap ring is less than 4 internal diameter of fixed ring, and fixed ring 4 is stuck in ring 41 and outflow section 22 Among front end, before stopping brill, 31 rear end of impact section is flushed with 4 rear end of fixed ring.

5 internal diameter of outer cylinder is 80mm, and 5 inner wall of outer cylinder is connected with emergency gear 51, and 51 outer diameter of emergency gear is 86mm, emergency gear 51 include card-tight part 511 and press section 512 from back to front, and 511 front end face internal diameter of card-tight part is 55mm, a length of 10mm, press section 512 front end face internal diameters are 60.4mm, a length of 20mm, and 512 front end of press section is also connected with preceding protrusion, and preceding protrusion internal diameter is 70mm, Long 10mm.

6 front end of center-pole is connected with spacing head 61, and spacing head 61 is in locking section B23, and spacing head 61 is before locking section A13 Side, 61 outer diameter of spacing head are 31mm, and 61 outer wall rear end of spacing head and 6 outer wall front end of center-pole pass through at 45 ° with radial section Inclined-plane connection, the axial distance of 511 front end face of card-tight part to 512 front end face of press section are arrived equal to the 231 hole heart of locking hole before boring is stopped The axial distance at the center locking slot B321, the distance of 11 rear end of seal section to 221 rear end of tap hole is greater than before stopping boring stop brill after lock The axial distance at the 231 hole heart of tieholen to the center locking slot A131, which is greater than, stops boring preceding 11 front end of seal section to 221 front end of tap hole Distance.

Pressure release module: including lock pin 82, locking level 81, connecting tube 72, lock body 71 and shearing plunger 9, center-pole 6, lock pin 82, locking level 81, connecting tube 72, lock body 71 and shearing plunger 9 are coaxial, and 72 rear of connecting tube connects lock body 71, lock pin 82 and lock For fixed pole 81 in connecting tube 72 and lock body 71, locking level 81 shears plunger 9 in lock body 71 and connecting tube 72 at 82 rear of lock pin And outside locking level 81, shearing plunger 9 is connect by cutting off with lock body 71.

82 internal diameter of lock pin be 32mm, a length of 220mm, lock pin 82 be sequentially connected from back to front portion 821, work department 822 and insert Enter portion, interconnecting piece 821 is 38mm long, and 821 outer diameter of interconnecting piece is 38mm, and 821 outer wall of interconnecting piece has the screw thread of M40 × 1.5, interconnecting piece Non-threaded no more than the region of 8mm apart from 822 front end face of work department on 821 outer walls, a length of 63mm of work department 822, outer diameter is 50mm, 822 outer wall of work department is fluted, and groove floor is 22.5mm, 821 front end distance of interconnecting piece apart from 82 axial line distance of lock pin Front end distance is 59mm, the wide 25.5mm of slot opening at slot opening, groove floor and 822 outer wall of work department by with level side It is connected to the inclined-plane that angle is 45 °, a length of 98mm in insertion section, outer diameter 48mm.

Interconnecting piece 821 is connect with 81 nose threads of locking level, and 81 outer diameter of locking level is 45mm, during 81 internal diameter of locking level is greater than 6 outer diameter of core bar, 81 side wall of locking level are provided with the inflow hole 811 that aperture is 16mm, and inflow hole 811 has 4, and inflow hole 811 does not exist Same axial position, any inflow hole 811 is not in 81 the same side of locking level, 811 circumferentially-spaced 90 ° of two neighboring inflow hole, in Core bar 6 passes through 81 inner cavity of lock pin 82 and locking level.

Connecting tube 72 includes linkage section 721, pressure release section 722 and choked flow section 723 from back to front, and 721 outer diameter of linkage section is 91mm, 721 inner wall of linkage section have screw thread, and 722 outer diameter of pressure release section is 94.5mm, and pressure release section 722 is provided with relief hole 7221, relief hole 7221 be through-hole, and 722 relief hole of pressure release section, 7221 front internal diameter is 72mm, and 722 relief hole of pressure release section, 7221 rear internal diameter is 74mm, 7221 front end face of relief hole are connect with 722 inner wall of pressure release section by the inclined-plane for being 76 ° with radial section angle, relief hole 7221 be strip-shaped hole, and relief hole 7221 is axially disposed, and 7221 width of relief hole is 16mm, and 7221 front and back sides of relief hole are half Arc surface, semicircle cambered surface radius are 8mm, and 72 outer wall of connecting tube is provided with diversion trench 7222, and 7222 width of diversion trench is 15mm, depth For 5mm, the axial setting of diversion trench 7222, diversion trench 7222 is in the front of relief hole 7221, diversion trench 7222 and relief hole 7221 connections, relief hole 7221 and diversion trench 7222 have 2, are circumferentially uniformly distributed, and 723 internal diameter of choked flow section is 50mm, outside Diameter is 78mm, and 723 inner wall of choked flow section is connect with 722 inner wall of pressure release section by the inclined-plane for being 45 ° with radial section angle.

Linkage section 721 is threadedly coupled with lock body 71, and 71 front end of lock body is external screw thread, and 721 rear end of connecting tube is internal screw thread, lock 71 inner wall of body, which is radially provided with, cuts off hole 711, and cutting off hole 711 is through-hole, cuts off hole 711 at 71 screw thread of lock body, cuts off in hole 711 It cuts off, cuts off length greater than 711 depth of hole is cut off, 71 inner wall of lock body is provided with seal groove B712, has sealing in seal groove B712 Circle, seal groove B712 are cutting off 711 front of hole, and shearing plunger 9 is 191.5mm long, internal diameter 53mm, and shearing plunger 9 is from back to front Including cut section 91 and recoil section 92,91 outer diameter of cut section is 65mm, and 91 outer diameter of cut section is equal to 71 internal diameter of lock body, and recoil section 92 Outer diameter is 72mm, and recoil section 92 is 15mm long, and 91 outer wall of cut section, which is provided with, cuts off slot 911, and cutting off slot 911 is annular groove, cuts off slot 911 width 8mm, cut off 911 front end of slot distance shearing 9 rear end 25.5mm of plunger, and recoil 92 outer wall of section is provided with seal groove A921, seals There is sealing ring in slot A921, seal groove A921 width is 5.5mm, and 921 rear end of seal groove distance shears 9 front end 10.5mm of plunger, Before stopping brill, 92 front end of section is recoiled in front of 7221 front end of relief hole, inner end insertion is cut off and cuts off slot 911, and after stopping brill, recoil section 92 Front end cuts off cutting at 7221 front end rear of relief hole；

It is fluid passage A101 between 6 outer wall of center-pole and locking level 81 and 82 inner wall of lock pin, shears 9 inner wall of plunger, connecting tube It is fluid passage B102 between 72 inner walls and locking level 81 and 82 outer wall of lock pin, is liquid between 6 outer wall of 21 inner wall of inflow segment and center-pole Road C103, fluid passage A101 are connected to fluid passage C103, and fluid passage A101 is connected to fluid passage B102 by inflow hole, and the rear fluid passage B102 connects Logical liquid supply equipment.

Hydraulic motor rotor and drill bit are connected in front of outer cylinder 5, when drilling machine works, outer cylinder 5 moves from back to front, fluid passage B102 It is connect with rear slush pump, fluid passage C103 is connected to front hydraulic motor by tap hole 221, and lock ball 232 is in locking slot A131 In locking hole 231, limiter valve shell 1 moves forward, and outer cylinder 5 drives emergency gear 51 to move forward, until 51 striking lock of emergency gear Fixed 3, make locking slot B321 and 231 face of locking hole, 1 rear end of hydraulic shock valve housing in fluid passage C103 squeezes locking Ball 232 enters locking slot B321, and 1 constraint relief of valve housing moves forward, and seal section 11 is moved in outflow section 22, blocks Fluid passage is truncated in access between fluid passage C103 and tap hole 221, and motor stops operating, gushes on liquid, flows back to fluid passage B102, instead Punching recoil section 31, moves backward recoil section 31, and cutting is cut off, and is connected to fluid passage B102 and 7221 access of relief hole, is passed through pressure release 7221 pressure release of hole.

Certainly, the utility model can also have other various embodiments, without departing substantially from the spirit of the present invention and its essence In the case of, those skilled in the art can make various corresponding changes and modifications, but these phases according to the utility model The change and modification answered all should belong to the protection scope of the utility model the attached claims.

Claims (9)

1. core drilling rig ends automatically mechanism, it is characterised in that: including choked flow module, the choked flow module includes valve housing (1), shell (2) and trigger mechanism are locked, valve housing (1), lock shell (2) and trigger mechanism are coaxial, and center-pole (6) passes through valve Shell (1) inner cavity, for valve housing (1) in lock shell (2), valve housing (1) includes seal section (11) and water conservancy diversion from back to front Section (12), lock shell (2) include from back to front inflow segment (21) and outflow section (22), are had between center-pole (6) and inflow segment (21) Fluid passage C (103), inflow segment (21) internal diameter are greater than seal section (11) outer diameter, and seal section (11) outer diameter is greater than diversion section (12) Outer diameter, outflow section (22) internal diameter are equal to seal section (11) outer diameter, and outflow section (22) is provided with tap hole (221), close before stopping brill Envelope section (11) front end is connected in inflow segment (21) fluid passage C (103) with tap hole (221), after stopping brill, seal section (11) and outflow section (22) sealing cooperation, fluid passage C (103) and tap hole (221) separate.

2. core drilling rig according to claim 1 ends automatically mechanism, it is characterised in that: the valve housing (1) is also wrapped It includes locking section A (13), locking section A (13) is connect with diversion section (12) front end, and the lock shell (2) includes (23) locking section B, lock Tight section B (23) is connected with outflow section (22) front end, and the trigger mechanism includes lock sleeve (3), fixed ring (4), outer cylinder (5), lock Tight section A (13) and locking section B (23), lock shell (2) pass through lock sleeve (3) inner cavity, state locking section A (13) outer wall and be provided with locking slot Have locking hole (231) on A (131), locking section B (23), locking hole (231) equal through-hole, has lock ball in locking hole (231) (232), lock ball (232) diameter is greater than locking hole (231) depth, and lock sleeve (3) includes impact section (31) and locks from back to front Tight section C (32), locking section C (32) inner wall have locking slot B (321), locking slot A (131) slot bottom to locking section B (23) inner wall Distance be less than lock ball (232) diameter, the distance of locking slot A (131) slot bottom to locking section B (23) outer wall is not less than locking The distance of tight ball (232) diameter, locking slot B (321) slot bottom to locking section B (23) outer wall is less than lock ball (232) diameter, The distance of locking slot B (321) slot bottom to locking section B (23) inner wall is not less than lock ball (232) diameter, the fixed ring (4) it is fixed on locking section B (23) outer wall, fixed ring (4) is greater than fixed ring in locking hole (231) rear, impact section (31) internal diameter (4) outer diameter, for locking section C (32) in front of the fixed ring (4), outer cylinder (5) internal diameter is greater than lock shell (2) and lock sleeve (3) Outer diameter, outer cylinder (5) inner wall are connected with emergency gear (51), and emergency gear (51) includes card-tight part (511) and press section from back to front (512), press section (512) front end face internal diameter is less than impact section (31) outer diameter, and press section (512) internal diameter is not less than fixed ring (4) Outer diameter, card-tight part (511) front end face internal diameter are less than fixed ring (4) rear end face outer diameter, and center-pole (6) front end is connected with spacing head (61), spacing head (61) is in locking section B (23), and spacing head (61) is in front of locking section A (13), spacing head (61) outer wall and lock The gap of shell (2) inner wall is less than locking section A (13) nose thickness, card-tight part (511) front end face to press section (512) front end face Axial distance be equal to stop boring preceding locking hole (231) the hole heart to the axial distance at locking slot B (321) center, stop boring preceding seal section (11) distance of rear end to tap hole (221) rear end is greater than stop boring after locking hole (231) the hole heart to locking slot A (131) center Axial distance is greater than the distance for stopping boring preceding seal section (11) front end to tap hole (221) front end.

3. core drilling rig according to claim 2 ends automatically mechanism, it is characterised in that: it further include pressure release module, it is described Pressure release module at choked flow module rear, pressure release module include lock pin (82), locking level (81), connecting tube (72), lock body (71) and It shears plunger (9), center-pole (6), lock pin (82), locking level (81), connecting tube (72), lock body (71) and shearing plunger (9) are same Axis, lock pin (82) they include interconnecting piece (821) and work department (822) from back to front, and interconnecting piece (821) connects locking level (81), in Core bar (6) passes through lock pin (82) and locking level (81) inner cavity, and center-pole (6) outer diameter is less than in lock pin (82) and locking level (81) Diameter, locking level (81) side wall are provided with inflow hole (811), and connecting tube (72) includes linkage section (721), pressure release section from back to front (722) and choked flow section (723), work department (822) outer diameter are equal to choked flow section (723) internal diameter, and choked flow section (723) internal diameter is less than pressure release Section (722) internal diameter, pressure release section (722) are provided with relief hole (7221), and relief hole (7221) is through-hole, linkage section (721) and lock body (71) it connects, lock body (71) inner wall, which is radially provided with, cuts off hole (711), cuts off and cuts off in hole (711), cuts off length and is greater than and cuts off Hole (711) depth, shearing plunger (9) internal diameter are greater than lock pin (82) and locking level (81) outer diameter, and shearing plunger (9) is wrapped from back to front Cut section (91) and recoil section (92) are included, cut section (91) outer diameter is equal to lock body (71) internal diameter, and recoil section (92) outer diameter, which is equal to, to be let out Section (722) relief hole (7221) forward portion internal diameter is pressed, cut section (91) outer wall, which is provided with, cuts off slot (911), and before stopping brill, recoil section (92) front end cuts off inner end insertion and cuts off slot (911) in front of relief hole (7221) front end, after stopping brill, section (92) front end of recoiling At relief hole (7221) front end rear；

Have between center-pole (6) and locking level (81) and lock pin (82) fluid passage A (101), shearing plunger (9), connecting tube (72) with Have between locking level (81) and lock pin (82) fluid passage B (102), fluid passage A (101) is connected to fluid passage C (103), fluid passage A (101) with Fluid passage B (102) is connected to by inflow hole (811), and (102) rear fluid passage B is connected to liquid supply equipment.

4. core drilling rig according to claim 3 ends automatically mechanism, it is characterised in that: outflow section (22) outer diameter is greater than lock Tight section B (23) outer diameter, fixed ring (4) internal diameter are equal to locking section B (23) outer diameter.

5. core drilling rig according to claim 4 ends automatically mechanism, it is characterised in that: further include snap ring (41), snap ring (41) outer diameter is greater than fixed ring (4) internal diameter, and snap ring (41) internal diameter is less than fixed ring (4) internal diameter, and snap ring (41) is embedded in locking section B (23) in the card slot of outer wall, fixed ring (4) is connected between snap ring (41) rear end and outflow section (22) front end.

6. core drilling rig according to claim 3 ends automatically mechanism, it is characterised in that: recoil section (92) outer wall is opened Have seal groove A (921), has sealing ring in seal groove A (921), lock body (71) inner wall is provided with seal groove B (712), seal groove There is sealing ring in B (712), seal groove B (712) is being cut off in front of hole (711).

7. core drilling rig according to claim 3 ends automatically mechanism, it is characterised in that: the lock body (71) and connecting tube (72) it is threadedly coupled, lock body (71) front end is external screw thread, and connecting tube (72) rear end is internal screw thread, and the hole (711) that cuts off is logical Hole cuts off hole (711) at lock body (71) screw thread, and the lock pin (82) is threadedly coupled with locking level (81).

8. core drilling rig according to claim 3 ends automatically mechanism, it is characterised in that: described to cut off slot (911), locking Slot A (131) and locking slot B (321) is annular groove.

9. core drilling rig according to claim 3 ends automatically mechanism, it is characterised in that: connecting tube (72) outer wall is opened Have diversion trench (7222), diversion trench (7222) is immediately ahead of relief hole (7221), and diversion trench (7222) is axially arranged, diversion trench (7222) it is connected to relief hole (7221).