CN209228326U - Core drilling rig control mechanism - Google Patents

Abstract

The utility model discloses a kind of core drilling rig control mechanism, including center-pole and outer cylinder, center-pole passes through fluid passage starting module from back to front, outer cylinder unlocked state, diverter module and coring tube link block inner cavity, coring tube link block includes core pipe connecting leg, core collar bearing, bearing inner race, ball A and ball B, core pipe connecting leg front end connects coring tube, bearing inner race is in core pipe connecting leg, core collar bearing is connect with outer tube inner wall, core collar bearing inner wall has ball grooves A, core pipe connecting leg has ball hole A and ball grooves B, bearing inner race has ball hole B and ball grooves C, center-pole outer wall has ball grooves D, when drilling well, core pipe connecting leg is connect by ball A with core collar bearing, core pipe connecting leg is connect by ball B with bearing inner race, when lifting, core pipe connecting leg is connect by ball A with bearing inner race, bearing inner race passes through ball B and center-pole Connection.Core drilling rig control mechanism provided by the utility model can cooperate control core drilling rig underground equipment to work by coring step with ground installation.

Description

Core drilling rig control mechanism

Technical field

The utility model relates to drilling extracting core system more particularly to a kind of core drilling rig control 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 each step work of drilling equipment need to be controlled using mechanical structure.

Utility model content

The utility model is intended to provide a kind of core drilling rig control mechanism, and control core drill motor-pumped well can be cooperated with ground installation Lower equipment presses the work of core step.

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

Core drilling rig control mechanism disclosed by the utility model, including center-pole, fluid passage starting module, outer cylinder, outer cylinder solution Lock module, diverter module and coring tube link block, center-pole pass through from back to front fluid passage starting module, outer cylinder unlocked state, Diverter module and coring tube link block inner cavity, fluid passage starting module is in outer cylinder rear, fluid passage starting module and outer cylinder solution mode locking Block is connected；

The coring tube link block includes core pipe connecting leg, core collar bearing and bearing inner race, center-pole pass through core pipe connecting leg, Core collar bearing and bearing inner race, core pipe connecting leg front end connect coring tube, bearing inner race in core pipe connecting leg, the core collar bearing with Outer tube inner wall connection, core collar bearing internal diameter are greater than core pipe connecting leg and coring tube outer diameter, and the core collar bearing inner wall has ball grooves A, Core pipe connecting leg is provided with ball hole A and ball grooves B, and for ball grooves B in core pipe connecting leg inner wall, ball hole A is described in front of ball grooves B Bearing inner race is provided with ball hole B and ball grooves C, and ball grooves C is in bearing inner race outer wall, and ball hole B is in the rear ball grooves C, ball There is ball A in the A of hole, ball A diameter is greater than ball hole A depth, has ball B in ball hole B, it is deep that ball B diameter is greater than ball hole B Degree, the center-pole outer wall have from back to front and successively have ball grooves D and inner ring stop bit step, and inner ring stop bit outer diameter of step is greater than axis Inner ring internal diameter is held, inner ring stop bit outer diameter of step is less than core pipe connecting leg internal diameter, the distance between inner ring stop bit step and ball grooves D etc. In the distance between bearing inner race front end and ball hole B, when drilling well, in ball hole A and ball grooves A, ball B is being rolled ball A In hole of bead B and ball grooves B, core pipe connecting leg is connect by ball A with core collar bearing, and core pipe connecting leg passes through ball B and bearing inner race Connection, when lifting, ball A is in ball hole A and ball grooves C, and in ball hole B and ball grooves D, core pipe connecting leg passes through ball B Ball A is connect with bearing inner race, and bearing inner race is connect by ball B with center-pole.

Further, the fluid passage starting module includes that lock body, locking level, starting are cut off, and locking level is in lock body, locking Bar and lock body pass through starting and cut off connection, and for the center-pole in locking level, lock body includes seal section A, and locking level includes sealing Section B, the seal section A and seal section B sealing cooperation, the seal section B and center-pole sealing cooperate, center-pole and locking level it Between have a fluid passage A, locking level is provided with tap hole A, and tap hole A is connected to fluid passage A, and tap hole A is in the rear seal section B, lock body and locking There is fluid passage B between bar, fluid passage B is in front of seal section A, and before starting cuts off cutting, tap hole A is exported at seal section A, before fluid passage A End sealing, after starting cuts off cutting, locking level Forward, the outlet tap hole A is located in front of seal section A, and fluid passage A passes through with fluid passage B Tap hole A connection.

Further, the outer cylinder unlocked state includes connecting tube and lock pin, and connecting tube rear end is connect with lock body, after lock pin End is connect with locking level, and center-pole passes through lock pin inner cavity, and for lock pin in connecting tube, connecting tube leading portion outer diameter is less than outer cylinder internal diameter, Connecting tube leading portion side wall has Xie Suokong, and the fluted A of lock pin outer wall, the fluted B of outer tube inner wall, further includes pin, pin It follows closely length and is greater than unlock hole depth, for pin in solution lockhole, pin outer end chamfered and/or the side groove B are inclined-plane, The width of groove A is not less than pin inner end width, and the width of groove B is not less than pin outer end width, before starting cuts off cutting, even Front end is taken in outer cylinder, in front of groove A, pin inner face is slidably matched pin with lock pin outer wall, and the insertion of pin outer end is recessed In slot B, after starting cuts off cutting, locking level band pendulum lock pin moves forward, and solution lockhole and groove A face, pin inner end are embedded in groove A Interior, the distance of pin inner face to outer tube inner wall is greater than length of pin.

Further, the diverter module includes valve housing, lock shell and trigger mechanism, and center-pole passes through valve housing Inner cavity, for valve housing in lock shell, valve housing includes seal section C and diversion section from back to front, and lock shell wraps from back to front Inflow segment B and outflow section B are included, has fluid passage D between center-pole and inflow segment B, has liquid between center-pole outer wall and valve housing inner wall Road E, the rear end fluid passage D are connected to fluid passage B, and fluid passage E is connected to fluid passage D, and fluid passage E is connected to front drill bit cooling hole, the inflow segment B Internal diameter is greater than seal section C outer diameter, and seal section C outer diameter is greater than diversion section outer diameter, and the outflow section B internal diameter is equal to seal section C outer diameter, Outflow section B is provided with tap hole B, and tap hole B outlet hydraulic motor, before stopping brill, the front end seal section C is in inflow segment B, fluid passage D It is connected to tap hole B, after stopping brill, seal section C and outflow section B sealing cooperate, and fluid passage D and tap hole B separate.

Further, the valve housing further includes locking section A, and locking section A is connect with diversion section front end, the lock shell It further include locking section B, locking section B is connected with the outflow front end section B, and the outer tube inner wall is connected with emergency gear, the trigger mechanism Including lock sleeve, fixed ring and emergency gear, to lock shell and pass through lock sleeve inner cavity, the locking section A outer wall is provided with locking slot A, There are locking hole A and locking hole B on locking section B, for locking hole B in front of locking hole A, locking hole A and locking hole B are through-hole, lock Tieholen A is identical with locking hole B size, has lock ball in locking hole A and locking hole B, it is deep that locking bulb diameter is greater than locking hole A Degree, lock sleeve includes impact section and locking section C from back to front, and locking section C inner wall has locking slot B and locking slot C, and locking slot C exists In front of locking slot B, the distance between locking slot B and locking slot C are equal to the distance between locking hole A and locking hole B, the fixation Ring is fixed on locking section B outer wall, and fixed ring is at the rear locking hole A, and impact section internal diameter is greater than fixed ring outer diameter, and locking section C is solid Determine in front of ring, emergency gear includes card-tight part and press section from back to front, and press section front end face internal diameter is less than impact section outer diameter, is squeezed Splenium 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, and center-pole has limiting section, Limiting section is in locking section B, and limiting section is in front of locking section A, and limiting section outer wall is provided with locking slot D, and locking slot D is in locking slot A Front is provided with fluid passage F inside limiting section, and fluid passage E is connected to by fluid passage F with front drill bit cooling hole, and card-tight part front end face is to crowded The axial distance of splenium front end face, which is equal to, stops boring the preceding locking hole A hole heart to the axial distance at the center locking slot B, stops boring preceding seal section The distance of the rear end C to the rear end tap hole B stops locking after boring greater than the locking hole A hole heart after boring is stopped to the axial distance at the center locking slot A The axial distance at the tieholen A hole heart to the center locking slot A is greater than the distance for stopping boring the preceding front end seal section C to the front end tap hole B.

Further, there is fluid passage C between the center-pole and lock pin and locking level, locking level side wall is provided with inflow hole, liquid Road B is connected to fluid passage C by inflow hole, and fluid passage C is connected to fluid passage D, and connecting tube includes pressure release section and choked flow section, lock from back to front Pin cooperates with choked flow section sealing, and choked flow section internal diameter is less than pressure release section internal diameter, and pressure release section is provided with relief hole, and relief hole is through-hole, liquid There is shearing plunger in road B, shearing plunger internal diameter is greater than lock pin and locking level outer diameter, and shearing plunger connects by terminating to cut off with lock body It connects, shearing plunger includes cut section and recoil section from back to front, and cut section outer wall and the sealing of lock body inner wall cooperate, and recoil section outer diameter Equal to pressure release section relief hole forward portion internal diameter, before stopping brill, section front end is recoiled in front of relief hole front end, recoil section and pressure release section The sealing cooperation of relief hole forward portion, after stopping brill, front liquid reflux impact shear plunger front end, shearing plunger is moved back, and is recoiled Duan Qianduan is connected in relief hole front end rear, fluid passage B with relief hole.

Further, the locking level outer wall and lock body inner wall have mutually matched limited step.

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 starting is cut off at the screw thread of lock body rear end.

Further, the locking nut includes fixed section and thread segment, and locking level step rear outer diameter is less than fixed section Internal diameter, fixed section internal diameter are less than outer diameter at locking level step, connect in thread segment with lock body rear end.

Further, the locking nut is axially provided with fixation hole A, and the fixation hole A is through-hole, and lock body rear end face has solid Determine hole B, it further includes fixing screws, fixing screws length, which is greater than, fixes that fixation hole B, which is blind hole, fixation hole A and fixation hole B pairing, Hole A depth, in fixation hole A, fixing screws front end passes through in fixation hole A insertion fixation hole B fixing screws.

The utility model has the following beneficial effects:

1, before starting, starting, which is cut off, is fixed on locking level on lock body, and tap hole A is opened in seal section A, tap hole A outer wall Mouth is shut, and fluid passage partition, connecting tube is connect with lock body, and pin outer end is embedded in groove B, and outer cylinder is locked in connecting tube, Hydraulic when the offer of rear slush pump reaches initiation value, thrusts starting and cuts off, and locking level Forward, liquid passes through outflow through fluid passage A Hole A enters fluid passage B, then flows into fluid passage C through inflow hole, flows through diverter module, a part of liquid is through fluid passage D, fluid passage E and fluid passage F The cooling drill bit of drill bit cooling hole is reached, a part of liquid is connected to front hydraulic motor by tap hole B through liquid passing channle D, is started Hydraulic motor, locking level Forward band pendulum lock pin move forward, make groove A and solution lockhole face, outer cylinder self gravity forward, groove B with Pin outer end contact surface is inclined-plane, and pin is squeezed into groove A, releases the constraint to outer cylinder, and outer cylinder front end connects hydraulic motor The workpieces such as rotor and drill bit, make drill bit travel forward；

2, before stopping brill, lock ball locks valve housing in locking hole A and locking slot A, and fluid passage D is kept to pass through outflow Hole B is connected to front hydraulic motor, and when outer cylinder moves forward to stop position, outer cylinder drives emergency gear to hit lock sleeve, is made Lock sleeve Forward, locking slot B and locking hole A face release lock ball radial constraint, hydraulic shock valve housing rear end, locking Ball is pressed into locking slot B, and valve housing Forward, seal section C separates fluid passage D and tap hole B, stops motor forwards Energy supply, motor stalling, since fluid passage D is blocked, gushes after liquid, flows back to fluid passage B, recoil shearing plunger front end, shearing plunger by Power backward, shearing plunger move 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 It is discharged from relief hole；

3, when drilling well, ball A is in ball hole A and ball grooves A, and ball B is in ball hole B and ball grooves B, core pipe connecting leg It is connect by ball A with core collar bearing, core pipe connecting leg is connect by ball B with bearing inner race, and core collar bearing is connect with outer cylinder, core Pipe connecting leg front end connects coring tube, core pipe connecting leg, bearing inner race and coring tube can be made to move forward with outer cylinder and drill bit, but core pipe Connecting leg, bearing inner race and coring tube are not rotated with outer cylinder and drill bit, and ball A and ball B can reduce friction；

4, when lifting, ball hole A and ball grooves C face, ball grooves D and ball hole B face, ball A is in ball hole A and rolling In pearl slot C, in ball hole B and ball grooves D, core pipe connecting leg is connect by ball A with bearing inner race ball B, and bearing inner race is logical Ball B is crossed to connect with center-pole, core pipe connecting leg front end connect coring tube, by ground machine lift center-pole, by coring tube from It is taken out in drilling well, recycles coring；

5, locking nut is set, and locking nut is threadedly coupled with lock body, and linkage section is threadedly coupled with outflow section A, convenient for peace Dress, replacement starting are cut off；

6, fixation hole, fixation hole B and fixing screws cooperation, limitation circumferentially rotate.

Detailed description of the invention

Fig. 1 is schematic diagram when dental drill and core drilling rig interlock；

Fig. 2 is the face A-B cross-sectional view；

Fig. 3 is lock bolt schematic diagram；

Fig. 4 is schematic diagram after the starting of fluid passage starting module；

Fig. 5 is schematic diagram before outer cylinder unlocked state starts；

Fig. 6 is that outer cylinder unlocked state stops schematic diagram after boring；

Fig. 7 is that diverter module stops boring preceding schematic diagram；

Fig. 8 is that diverter module stops schematic diagram after boring；

Schematic diagram when Fig. 9 is the drilling well of coring tube link block；

Figure 10 is schematic diagram when coring tube link block lifts；

In figure: 11- lock body, 111- lock segments, 112- seal section A, 113- fluid passage section, 12- locking level, 121- linkage section, 122- flows out section A, 1221- tap hole A, 123- seal section B, 124- inflow segment A, 1241- inflow hole, 13- starting is cut off, 14- Center-pole, 15- locking nut, 151- fixed section, 152- thread segment, 16- fixing screws, 17- ring gasket, 21- connecting tube, 211- linkage section, 212- pressure release section, 2121- relief hole, 213- choked flow section, 22- lock pin, 221- groove A, 23- outer cylinder, 231- are recessed Slot B, 232- emergency gear, 2321- card-tight part, 2322- press section, 24- pin, 25- terminate to cut off, 26- shearing plunger, 261- Cut section, 262- recoil section, 31- valve housing, 311- seal section C, 312- diversion section, 313- locking section A, 3131- locking slot A, 32- locks shell, 321- inflow segment B, 322- flow out section B, 3221- tap hole B, 323- locking section B, 3231- locking hole A, 3232- locking hole B, 33- lock sleeve, 331- impact section, 332- locking section C, 3321- locking slot B, 3322- locking slot C, 34- lock Tight ball, 35- fixed ring, 36- limiting section, 361- locking slot D, 37- snap ring, 41- fluid passage A, 42- fluid passage B, 43- fluid passage C, 44- liquid Road D, 45- fluid passage E, 46- fluid passage F, 5- dental drill, the first drilling pipe of 51-, the second drilling pipe of 52-, 53- third drilling pipe, 54- spring, 55- Lock bolt, 551- lock bolt rear end face, the first inclined-plane of 552- lock bolt, the second inclined-plane of 553- lock bolt, 554- lock bolt axial face, 555- lock bolt Hole, 56- lock bar slot, 57- lock slots, 58- pin shaft, 59- spring eye, 61- core pipe stop head, 62- core pipe connecting leg, 621- ball hole A, 6211- ball A, 622- ball grooves B, 63- core collar bearing, 631- ball grooves A, 64- bearing inner race, 641- ball hole B, 6411- ball B, 642- ball grooves C, 65- coring tube, 661- ball grooves D, 662- inner ring stop bit step, 663- connecting leg stop bit platform Rank.

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.

Such as Fig. 1-Fig. 4, core drilling rig control mechanism disclosed by the utility model, including dental drill 5 and core drilling rig, dental drill 5 Hollow, in dental drill 5, core drilling rig outer wall is slidably matched core drilling rig with 5 inner wall of dental drill, and dental drill 5 includes first from back to front Drilling pipe 51, the second drilling pipe 52 and third drilling pipe 53, the first drilling pipe 51 are detachably connected with the second drilling pipe 52, the second drilling pipe 52 and Three drilling pipes 53 are detachably connected, and 51 front end of the first drilling pipe is male connector, and 52 rear end of the second drilling pipe is female, front end is male connector, third 53 rear end of drilling pipe is female, and 52 inner wall of the second drilling pipe has lock slots 57, and lock slots 57 are axially disposed, and lock slots 57 run through second 52 front and back end of drilling pipe, there are two lock slots 57, two 57 faces of lock slots.

Core drilling rig outer wall has lock bar slot 56, and there are two lock bar slots 56, and two 56 faces of lock bar slot, lock bar slot 56 is along axial direction Setting has lock bolt 55 in lock bar slot 56, is connected with pin shaft 58 between 56 two sidewalls of lock bar slot, and pin shaft 58 is shop bolt, on lock bolt 55 There is latch hole 555, latch hole 555 is through-hole, and latch hole 555 is adapted to pin shaft 58, and pin shaft 58 passes through latch hole 555, lock bolt 55 It being rotatably assorted with pin shaft 58, the distance of latch hole 555 to 55 rear end of lock bolt is greater than the distance that latch hole 555 arrives 55 front end of lock bolt, 55 medial surface of lock bolt has a spring eye 59, and spring eye 59 is circular hole, and spring eye 59 is blind hole, spring eye 59 to 55 rear end of lock bolt away from From being less than with a distance from spring eye 59 to 55 front end of lock bolt, 56 slot bottom of lock bar slot has recess corresponding with spring eye 59, spring 54 It being mounted in spring eye 59 and recess, spring 54 is contacted with core drilling rig outer wall and lock bolt 55, when spring 54 bounces, lock bolt 55 Divide in insertion lock slots 57.

55 lateral surface of lock bolt includes lock bolt axial face 554, the first inclined-plane of lock bolt 552 and the second inclined-plane of lock bolt 553, lock bolt One inclined-plane, 552 rear end is connect with lock bolt rear end face 551, and 552 front end of the first inclined-plane of lock bolt connects 553 rear end of the second inclined-plane of lock bolt, 553 front end of the second inclined-plane of lock bolt is connect with 554 rear end of lock bolt axial face, and 554 front end of lock bolt axial face connects lock bolt front end face, lock Door bolt rear end face 551 is plane, and lock bolt front end face is cambered surface, and spring eye 59 and recess are on the second inclined-plane of lock bolt 553 into lock bolt 55 In the drop shadow spread of side, the 555 hole heart of latch hole to 55 medial surface of lock bolt and lateral surface are equidistant, and 55 total length of lock bolt is 131mm, lock bolt axial face 554 are 42mm, lock bolt the at a distance from 553 junction to lock bolt rear end face 551 of the second inclined-plane of lock bolt One inclined-plane 552 and radial section angle are 40 °, and the second inclined-plane of lock bolt 553 and radial section angle are 85 °, lock bolt front end face arc Radius surface is 11mm, and 555 diameter of latch hole is 10mm, and the center of circle of lock bolt front end face cambered surface is overlapped with 555 center of latch hole, spring 59 diameter of hole is 13mm, and deep 12mm, the distance of the 59 hole heart of spring eye to lock bolt rear end face 551 is 20mm, and lock bolt 55 is wide and thickness is equal For 20mm.

Core drilling rig moves from back to front, and when lock slots 57 and 56 face of lock bar slot, lock bolt 55 is bounced, by core drilling rig It is clamped with dental drill 5,55 left and right sidewall of lock bolt and lock slots 57 cooperate, and limit core drilling rig circumferential movement, and lock bolt axial face 554 is inclined Tiltedly, it is clamped with 53 rear end inner wall of third drilling pipe, limitation core drilling rig moves forward.

Core drilling rig includes center-pole 14, fluid passage starting module, outer cylinder 23, outer cylinder unlocked state, diverter module and coring Cylinder link block, center-pole 14 pass through fluid passage starting module, outer cylinder unlocked state, diverter module from back to front and connect with coring tube Module internal cavity, fluid passage starting module are connected in 23 rear of outer cylinder, fluid passage starting module with outer cylinder unlocked state.

Fluid passage starting module include lock body 11, locking level 12, starting cut off 13, center-pole 14, penetrated through before and after lock body 11, lock Slot 56 is fastened with a bolt or latch in 11 outer wall of lock body, lock body 11 is in 56 rear portion outer diameter of lock bar slot than lock body 11 in 56 forward portion outer diameter of lock bar slot Small, lock body 11 is followed successively by lock segments 111, seal section A112 and fluid passage section 113 from rear to preceding, and 111 side wall of lock segments has starting to cut Pin hole, it is through-hole that starting, which cuts off hole, and starting cuts off 13 length and cuts off hole depth greater than starting, penetrates through, lock before and after locking level 12 For bar 12 in lock body 11, locking level 12 is followed successively by linkage section 121, outflow section A122, seal section B123 and inflow segment from rear to preceding A124, linkage section 121 are threadedly coupled with outflow section A122, and seal section B123 and inflow segment A124 welding, 121 outer wall of linkage section have Starting cuts off slot, and it is annular groove that starting, which cuts off slot, and starting cuts off 13 and cuts off hole in starting and starting is cut off in slot, flows out section A122 Side wall is provided with tap hole A1221, and inflow segment A124 side wall is provided with inflow hole 1241, and tap hole A1221 turns forward from inside to outside, Tap hole A1221 has multiple, and multiple tap hole A1221 are circumferentially uniformly distributed in same axial position, and inflow hole 1241 has more A, inflow hole 1241 is distributed before and after not ipsilateral, and 111 internal diameter of lock segments is greater than seal section A112 internal diameter, 121 outer wall of linkage section There is step, outer diameter of step is greater than seal section A112 internal diameter, and outer diameter is equal to seal section A112 internal diameter in front of 121 step of linkage section, opens Dynamic to cut off slot in step outer wall, center-pole 14 is in locking level 12, and seal section A112 and seal section B123 sealing cooperate, fluid passage section 113 internal diameters are greater than 12 outer diameter of locking level, and linkage section 121, the internal diameter for flowing out section A122 and inflow segment A124 are greater than outside center-pole 14 Diameter, seal section B123 and the sealing of center-pole 14 cooperate, and the axial distance of the front end seal section A112 to 11 rear end of lock body is less than sealing Section the front end B123 arrive 11 rear end of lock body axial distance, starting cut off 13 pass through starting cut off hole insertion starting cut off slot, outflow Hole A1221 opening of external wall to 11 rear end of lock body axial distance be less than 113 rear end of fluid passage section to 11 rear end of lock body axial distance, It further include locking nut 15 and ring gasket 17, ring gasket 17 is connect with lock body 11, and ring gasket 17 is connected to lock bar slot 56 Rear, 17 outer diameter of ring gasket is identical in 56 forward portion outer diameter of lock bar slot as lock body 11,17 back segment inner wall of ring gasket and lock 11 outer wall of body contact, 17 back segment internal diameter of ring gasket be less than its front 11 outer diameter of lock body, 17 leading portion internal diameter of ring gasket from it is rear to Before be gradually increased, 17 leading portion inner wall of ring gasket and radial section angle are 45 °, and 17 front end face of ring gasket is after lock bar slot 56 The internal diameter of ring gasket 17 is greater than lock body herein in front of end face and at 553 rear of the second inclined-plane of lock bolt, 56 rear end face of lock bar slot 11 outer diameters, 55 lateral surface of lock bolt are contacted with 17 inner wall of ring gasket, and 17 outer diameter of ring gasket is 99.6mm, internal diameter 82mm, close Envelope 17 length of steel ring is 23mm, and 17 rear end outer wall of ring gasket has the chamfering of 3mm × 45 °, and lock body 11 is in 56 rear part of lock bar slot Exceptionally diameter is 82mm, and locking nut 15 compresses ring gasket 17 in 17 rear of ring gasket, locking nut 15, locking nut 15 Front and back perforation, center-pole 14 pass through 15 inner cavity of locking nut, and 15 front end of locking nut is threadedly coupled with 11 rear end of lock body, and starting is cut Pin hole is opened at 11 rear end screw thread of lock body, and the radial distance that 15 inner wall of locking nut to starting cuts off slot bottom is cut off not less than starting Length, locking nut 15 include fixed section 151 and thread segment 152, and 121 step rear outer diameter of linkage section is less than in fixed section 151 Diameter is less than outer diameter at step, and 152 internal diameter of thread segment is equal to 111 outer diameter of lock segments, and locking nut 15 is axial to be provided with fixation hole A, Gu Determining hole A is through-hole, and it further includes solid that it is blind hole, fixation hole A and fixation hole B pairing that 11 rear end face of lock body, which has fixation hole B, fixation hole B, Determine screw 16,16 length of fixing screws is greater than fixation hole A depth, and fixing screws 16 in fixation hole A, wear by 16 front end of fixing screws It crosses in fixation hole A insertion fixation hole B, after feed flow, locking level 12 moves forward, and starting cuts off 13 cuttings, and starting cuts off head and cuts in starting In pin hole, starting cuts off tail and cuts off in slot in starting, and it includes major part and microcephaly that starting, which cuts off head, and outwardly, large head external diameter is big for major part In small head external diameter, it includes outer segment and inner segment that starting, which cuts off hole, and outer segment aperture cuts off a large head external diameter, inner segment aperture not less than starting Cut off a small head external diameter not less than starting, inner segment aperture is less than large head external diameter, and outer segment depth is not less than major part length, microcephaly with open It is dynamic cutting off tail length degree and be greater than inner segment depth；

As shown in Figure 5, Figure 6, outer cylinder unlocked state includes connecting tube 21 and lock pin 22,21 rear end of connecting tube and 11 spiral shell of lock body Line connection, 22 rear end of lock pin are threadedly coupled with locking level 12, and center-pole 14 passes through 22 inner cavity of lock pin, and 14 outer diameter of center-pole is less than lock 22 internal diameter of pin, center-pole 14, connecting tube 21, outer cylinder 23 and lock pin 22 are coaxial, and lock pin 22 is in connecting tube 21,21 leading portion of connecting tube Outer diameter is less than 23 internal diameter of outer cylinder, and it is multiple that 21 leading portion side wall of connecting tube has Xie Suokong, Xie Suokong to have, and multiple solution lockholes are in same axial direction Position is circumferentially uniformly distributed, the fluted A221 of 22 outer wall of lock pin, 23 inner wall of outer cylinder fluted B231, groove A221 and groove B231 is annular groove, further includes pin 24, and 24 length of pin is greater than unlock hole depth, and pin 24 is in solution lockhole, pin 24 Outer end chamfered, the side groove B231 be inclined-plane, the outer end chamfer of pin 24 and radial section angle and the side groove B231 and The angle of radial section is mutually remaining, and the width of groove A221 is not less than 24 inner end width of pin, and the width of groove B231 is not less than pin 24 outer end widths are followed closely, pin 24 includes ailhead and nail body, and for ailhead in inside, Xie Suokong is divided into ailhead section and nail figure, ailhead section Inside, ailhead section internal diameter is not less than ailhead outer diameter, and nail figure internal diameter is less than ailhead Duan Shen not less than nail body outer diameter, ailhead length Degree, nail body length is greater than nail figure depth, and after starting, 24 inner end of pin is embedded in groove A221,24 inner face of pin to outer cylinder The distance of 23 inner walls is greater than 24 length of pin.

Connecting tube 21 includes linkage section 211, pressure release section 212 and choked flow section 213 from back to front, and 22 outer diameter of lock pin is equal to choked flow 213 internal diameters of section, 213 internal diameter of choked flow section are less than 212 internal diameter of pressure release section, and pressure release section 212 is provided with relief hole 2121, and relief hole 2121 is Through-hole, 11 inner wall of lock body are radially provided with end and cut off hole, and end, which is cut off in hole, has end to cut off 25, and end cuts off 25 length and is greater than End cuts off hole depth, further includes shearing plunger 26, and shearing 26 internal diameter of plunger is greater than 12 outer diameter of lock pin 22 and locking level, shears column Plug 26 includes cut section 261 and recoil section 262 from back to front, and 261 outer wall of cut section and the sealing of 11 inner wall of lock body cooperate, lock body 11 Inner wall is provided with seal groove B, there is sealing ring in seal groove B, and seal groove B is terminating to cut off in front of hole, and recoil 262 outer diameter of section, which is equal to, to be let out 212 relief hole of section, 2121 forward portion internal diameter is pressed, recoil 262 outer wall of section is provided with seal groove A, there is sealing ring in seal groove A, shears 261 outer walls of section are provided with end and cut off slot, and 21 outer wall of connecting tube is provided with diversion trench, and diversion trench is in 2121 front of relief hole, water conservancy diversion To setting, diversion trench is connected to fluted shaft with relief hole 2121, before stopping brill, recoils 262 front end of section in front of 2121 front end of relief hole, instead It rushes section 262 and the sealing of 212 relief hole of pressure release section, 2121 forward portion cooperates, end, which cuts off the insertion of 25 inner ends, to be terminated to cut off in slot, After stopping brill, recoil 262 front end of section cuts off 25 cuttings in 2121 front end rear of relief hole, end.

As shown in Figure 7, Figure 8, diverter module includes valve housing 31, lock shell 32, lock sleeve 33 and fixed ring 35, center Bar 14, valve housing 31, lock shell 32, lock sleeve 33, fixed ring 35 and outer cylinder 23 are coaxial, and center-pole 14 passes through valve housing 31 Inner cavity, for valve housing 31 in lock shell 32, lock shell 32 passes through 33 inner cavity of lock sleeve, and valve housing 31 includes close from back to front Section C311, diversion section 312 and locking section A313 are sealed, locking section A313 outer wall is provided with locking slot A3131, and locking slot A3131 is ring Shape slot, lock shell 32 include inflow segment B321, outflow section B322 and locking section B323 from back to front, and inflow segment B322 internal diameter is greater than Seal section C311 outer diameter, seal section C311 outer diameter are greater than 312 outer diameter of diversion section, and outflow section B322 internal diameter is equal to outside seal section C311 Diameter, outflow section B322 are provided with tap hole B3221, there is locking hole A3231 and locking hole B3232, locking hole on locking section B323 B3232 is in front of locking hole A3231, and tap hole B3221, locking hole A3231 and locking hole B3232 are through-hole, and size is identical, There is lock ball 34 in locking hole A3231 and locking hole B3232,34 diameter of lock ball is greater than locking hole A3231 depth, lock sleeve 33 include impact section 331 and locking section C332 from back to front, and locking section C332 inner wall has locking slot B3321 and locking slot C3322, Locking slot B3321 and locking slot C3321 is annular groove, and size is identical, and locking slot C3322 is in front of locking slot B3321, locking The distance between slot B3321 and locking slot C3322 are equal to the distance between locking hole A3231 and locking hole B3232, locking slot The distance of A3131 slot bottom to locking section B323 inner wall is less than 34 diameter of lock ball, outside locking slot A3232 slot bottom to locking section B323 Distance of the distance of wall not less than 34 diameter of lock ball, locking slot B3321 and locking slot C3322 slot bottom to locking section B323 outer wall Less than 34 diameter of lock ball, the distance of locking slot B3321 and locking slot C3322 slot bottom to locking section B323 inner wall is not less than locking 34 diameter of ball, fixed ring 35 are fixed on locking section B323 outer wall, and fixed ring 35 is in the rear locking hole A3231,331 internal diameter of impact section Greater than 35 outer diameter of fixed ring, for locking section C332 in 35 front of fixed ring, 23 internal diameter of outer cylinder is greater than lock shell 32 and lock sleeve 33 Outer diameter, 23 inner wall of outer cylinder are connected with emergency gear 232, and emergency gear 232 includes card-tight part 2321 and press section 2322 from back to front, 2322 front end face internal diameter of press section is less than 331 outer diameter of impact section, and 2322 internal diameter of press section is not less than 35 outer diameter of fixed ring, card-tight part 2321 front end face internal diameters are less than 35 rear end face outer diameter of fixed ring, and center-pole 14 has limiting section 36, and limiting section 36 is in locking section B323 Interior, for limiting section 36 in front of locking section A313,36 outer wall of limiting section is provided with locking slot D361, and locking slot D361 is annular groove, lock For tight slot D361 in front of locking slot A3131, the gap of 36 outer wall of limiting section and lock 32 inner wall of shell is less than the front end locking section A313 Thickness, the axial distance of 2321 front end face of card-tight part to 2322 front end face of press section are arrived equal to the hole the locking hole A3231 heart before boring is stopped The axial distance at the center locking slot B3321, the rear end seal section C311 is to the distance of the rear end tap hole B3221 greater than stopping boring before stopping boring The hole the locking hole A3231 heart is to the axial distance at the center locking slot A3131 afterwards, stops after boring the locking hole A3231 hole heart to locking slot The axial distance at the center A3131 is greater than stop boring before the front end seal section C311 arrive the distance of the front end tap hole B3221, lock shell 32 and Valve housing 31 is locked by the lock ball 34 in locking hole A3231 or constraint relief, and lock shell 32 and lock sleeve 33 pass through lock The locking of lock ball 34 or constraint relief in tieholen A3231, lock shell 32 and center-pole 14 pass through the locking in locking hole B3232 The locking of ball 34 or constraint relief further include snap ring 37, and 37 outer diameter of snap ring is greater than 35 internal diameter of fixed ring, and 37 internal diameter of snap ring, which is less than, to be fixed 35 internal diameter of ring, snap ring 37 are embedded in the card slot of locking section B323 outer wall, and fixed ring 35 is connected to 37 rear end of snap ring and outflow section Between the front end B322, the front end locking section C332 is by spring supporting, and before stopping brill, lock shell 32 and valve housing 31 are locked, and keeps Fluid passage is unobstructed, 23 built-in security gear 232 of outer cylinder, and when outer cylinder 23 is advanced to defined position, outer cylinder 23 drives emergency gear 232 to hit Lock sleeve 33 is hit, makes to move outside the lock ball 34 in locking hole A3231, constraint of the releasing to valve housing 31, before valve housing 31 It moves, sealing liquid runner stops boring, at this time locking slot D361, locking hole B3232 and locking slot C3322 face, locking hole B3232 It is moved outside interior lock ball 34, releases the constraint to center-pole 14.

121 inner wall of linkage section, outflow section A122 inner wall, seal section B123 rear end face and 14 outer wall of center-pole surround fluid passage A41,11 inner wall of lock body and 12 outer wall of locking level surround fluid passage B42, and 12 inner wall of locking level and outer 14 walls of center-pole surround fluid passage C43,22 inner wall of lock pin and 14 outer wall of center-pole surround fluid passage D44, have liquid between 31 inner wall of 14 outer wall of center-pole and valve housing Road E45 is provided with fluid passage F46, fluid passage B42 and fluid passage C43 in limiting section 36 and is connected to by inflow hole 1241, fluid passage C43 and fluid passage D44 connection, the rear fluid passage E45 are connected to fluid passage D44, are connected in front of fluid passage E45 with fluid passage F46, and the rear fluid passage A41 is connected to feed flow Equipment, the front tap hole B3221 are connected to hydraulic motor, fluid passage F46 connection front drill bit cooling hole.

As shown in Figure 9, Figure 10, coring tube link block includes core pipe stop head 61, core pipe connecting leg 62,63 and of core collar bearing Bearing inner race 64, center-pole 14 coaxially pass through core pipe stop head 61, core pipe connecting leg 62, core collar bearing 63 and bearing inner race 64, core 62 front end of pipe connecting leg connects coring tube 65, and 62 rear end of core pipe connecting leg connects core pipe stop head 61, and bearing inner race 64 is in core pipe connecting leg In 62, bearing inner race 64 is in the front of core pipe stop head 61, and bearing inner race 64 is in 61 front end of core pipe stop head, core pipe connecting leg 62, interior In the space that wall and 14 outer wall of center-pole surround, core collar bearing 63 is connect with 23 inner wall of outer cylinder, and 63 internal diameter of core collar bearing is greater than core 65 outer diameter of pipe connecting leg 62 and coring tube, 63 inner wall of core collar bearing have a ball grooves A631, core pipe connecting leg 62 be provided with ball hole A621 and Ball grooves B622, ball grooves B622 are in 62 inner wall of core pipe connecting leg, and ball hole A621 in front of ball grooves B622, open by bearing inner race 64 There are ball hole B641 and ball grooves C642,64 outer wall of ball grooves C642 morning bearing inner race, ball hole B641 is after ball grooves C642 It is square, there is ball A6211 in ball hole A621, ball A6211 diameter is greater than ball hole A621 depth, has ball in ball hole B641 B6411, ball B6411 diameter be greater than ball hole B641 depth, 14 outer wall of center-pole have from back to front successively have ball grooves D661, Inner ring stop bit step 662 and connecting leg stop bit step 663,662 outer diameter of inner ring stop bit step are greater than 64 internal diameter of bearing inner race, and inner ring stops Position 662 outer diameter of step is less than 62 internal diameter of core pipe connecting leg, and 663 outer diameter of connecting leg stop bit step is greater than 62 internal diameter of core pipe connecting leg, and connecting leg stops Position 663 outer diameter of step is less than 65 internal diameter of coring tube, and the distance between inner ring stop bit step 662 and ball grooves D661 are equal in bearing Enclose the distance between 64 front ends and ball hole B641, when drilling well, ball A6221 is in ball hole A621 and ball grooves A631, rolling Pearl B6411 is in ball hole B641 and ball grooves B622, and core pipe connecting leg 62 is connect by ball A6211 with core collar bearing 63, core Pipe connecting leg 62 is connect by ball B6411 with bearing inner race 64, and rear motor rotates outer cylinder 23 while moving forward, coring tube 65 move forward with outer cylinder 23, but do not rotate with outer cylinder 23, after 64 front end of bearing inner race abuts inner ring stop bit step 662, bearing inner race When 64 stopping Forwards, ball hole B641, ball grooves B622 and ball grooves D661 face, ball B6411 is rolled out of ball grooves B622 Enter in ball grooves D661, bearing inner race 64 and center-pole 14 lock, and bearing inner race 64 and 62 constraint relief of core pipe connecting leg, core pipe connect Pipe 62 continues to move forward, and after 62 front end of core pipe connecting leg abuts connecting leg stop bit step 663, core pipe connecting leg 62 stops Forward, core pipe connecting leg 62 during Forward, ball hole A621, ball grooves A631 and when ball grooves C642 face, and ball A6211 is from ball grooves It being rolled into A631 in ball grooves C642, outer cylinder 23 and 62 constraint relief of core pipe connecting leg, core pipe connecting leg 62 and bearing inner race 64 lock, Coring tube 65 stops Forward, and when lifting coring, in ball hole A621 and ball grooves C642, ball B6411 is being rolled ball A6221 In hole of bead B641 and ball grooves D661, core pipe connecting leg 62 is connect by ball A6211 with bearing inner race 64, and bearing inner race 64 passes through Ball B6411 is connect with center-pole 14.

Before starting, starting, which cuts off 13 and passes through starting and cut off hole insertion starting, cuts off slot, and locking level 12 cuts off 13 by starting It is fixed in lock body 11, the axial distance of tap hole A1221 opening of external wall to 11 rear end of lock body is less than 113 rear end of fluid passage section to lock The axial distance of 11 rear end of body, tap hole A1221 opening of external wall are closed by seal section A112, and liquid is unable to flow forward, connection 21 front end of pipe is in outer cylinder 23, and pin 24 is in front of groove A221, and 24 inner face of pin is slidably matched with 22 outer wall of lock pin, pin 24 outer ends are embedded in groove B231, and outer cylinder 23 is fixed on outside connecting tube 21 by pin 24, hydraulic the reaching of rear slush pump offer To after initiation value, 12 rear end of locking level is impacted, subtracts disconnected starting and cuts off 13, starting, which cuts off 13, breaks and cut off head for starting and starting is cut off Tail, starting cut off head and cut off in hole in starting, and starting cuts off tail and cuts off in slot in starting, and locking level 12 moves forward, tap hole A1221 The axial distance of opening of external wall to 11 rear end of lock body is greater than axial distance of 113 rear end of fluid passage section to 11 rear end of lock body, fluid passage A41 It is connected to fluid passage B42 by tap hole A1221, fluid passage A41, fluid passage B42, fluid passage C43, fluid passage D44, fluid passage E45 and fluid passage F46 Connection, fluid passage D44 are connected to hydraulic motor by tap hole B3221, are connected to drill bit cooling hole, the rear fluid passage A41 in front of fluid passage F46 The hydraulic energy that liquid supply equipment provides passes through fluid passage A41, fluid passage B42, fluid passage C43, fluid passage D44, fluid passage E45 and fluid passage F46 transmission To front hydraulic motor and drill bit, drive motor, cooling drill bit, locking level 12 is with the Forward of pendulum lock pin 22,24 inner end of pin and lock 22 outer wall of pin is slidably matched, and when groove A221 is slided into forward with pin 24 in same axial position, outer cylinder 23 utilizes itself weight Power generates forward pressure, and groove B231 and 22 contact surface of pin are inclined-plane, and groove B231 squeezes 24 inclined-plane of pin, pin 24 It exits, is pressed into groove A221 from groove B231, release the constraint to outer cylinder 23, the work that outer cylinder 23 drives front to connect Component moves forward.

Hydraulic motor rotor and drill bit are connected in front of outer cylinder 23, when drilling machine works, outer cylinder 23 moves from back to front, and liquid is logical Liquid passing channle A41, fluid passage B42, fluid passage C43 flow into fluid passage D44, and fluid passage D44 is connected to front hydraulic motor by tap hole B3221, Fluid passage D44 is connected to by fluid passage E45 and fluid passage F46 with front drill bit cooling hole, and lock ball 34 is in locking slot A3131 and locking hole In A3231, limiter valve shell 31 moves forward, and outer cylinder 23 drives emergency gear 232 to move forward, after outer cylinder 23 is moved to defined position, Emergency gear 232 hits lock sleeve 33, makes locking slot B and locking hole A face, the hydraulic shock valve housing 31 in fluid passage D44 Rear end squeezes lock ball 34 and enters locking slot B, and 31 constraint relief of valve housing moves forward, and seal section C311 is moved to outflow In section B322, the access between fluid passage D44 and tap hole B3221 is blocked, fluid passage is truncated, motor stops operating, liquid Hui Yong, stream Fluid passage B42 is returned, recoil recoil section 262 moves backward recoil section 262, and cutting terminates to cut off 25, is connected to fluid passage B42 and pressure release 2121 access of hole passes through 2121 pressure release of relief 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 (10)

1. core drilling rig control mechanism, it is characterised in that: including center-pole (14), fluid passage starting module, outer cylinder (23), outer cylinder solution Lock module, diverter module and coring tube link block, center-pole (14) pass through fluid passage starting module, outer cylinder solution mode locking from back to front Block, diverter module and coring tube link block inner cavity, fluid passage starting module is in outer cylinder (23) rear, fluid passage starting module and outer cylinder Unlocked state is connected；

The coring tube link block includes core pipe connecting leg (62), core collar bearing (63) and bearing inner race (64), center-pole (14) Across core pipe connecting leg (62), core collar bearing (63) and bearing inner race (64), core pipe connecting leg (62) front end connects coring tube (65), axis Inner ring (64) is held in core pipe connecting leg (62), the core collar bearing (63) connect with outer cylinder (23) inner wall, in core collar bearing (63) Diameter is greater than core pipe connecting leg (62) and coring tube (65) outer diameter, and core collar bearing (63) inner wall has ball grooves A (631), and core pipe connects Pipe (62) is provided with ball hole A (621) and ball grooves B (622), and ball grooves B (622) is in core pipe connecting leg (62) inner wall, the bearing Inner ring (64) is provided with ball hole B (641) and ball grooves C (642), and ball grooves C (642) is in bearing inner race (64) outer wall, ball hole A (621) have ball A (6211) in, there are ball B (6411) in ball hole B (641).

2. core drilling rig control mechanism according to claim 1, it is characterised in that: the fluid passage starting module includes lock body (11), locking level (12), starting are cut off (13), and in lock body (11), locking level (12) and lock body (11) pass through locking level (12) Starting cuts off (13) connection, and the center-pole (14) is in locking level (12), the seal section A (112) and locking level of lock body (11) (12) seal section B (123) seals cooperation, and the seal section B (123) and center-pole (14) sealing cooperate, center-pole (14) with Have between locking level (12) fluid passage A (41), there is the tap hole A (1221) of connection fluid passage A (41) and outer wall, stream on locking level (12) A (1221) portal at seal section B (123) rear, has between lock body (11) and locking level (12) fluid passage B (42), fluid passage B (42) is close It seals in front of section A (112), tap hole A (1221) exports fluid passage A (41) forward end seal at seal section A (112).

3. core drilling rig control mechanism according to claim 2, it is characterised in that: the outer cylinder unlocked state includes connection Pipe (21) and lock pin (22), connecting tube (21) rear end are connect with lock body (11), and lock pin (22) rear end is connect with locking level (12), in Core bar (14) passes through lock pin (22) inner cavity, and for lock pin (22) in connecting tube (21), connecting tube (21) leading portion is connected to outer cylinder (23) Interior, connecting tube (21) leading portion side wall has Xie Suokong, the fluted A of lock pin (22) outer wall (221), and outer cylinder (23) inner wall has Groove B (231), in solution lockhole, pin (24) length is greater than unlock hole depth, pin (24) outer end for pin (24) setting Chamfered and/or (231) side groove B are inclined-plane, and the width of groove A (221) is not less than pin (24) inner end width, groove The width of B (231) is not less than pin (24) outer end width, and connecting tube (21) front end is in outer cylinder (23), and pin (24) is in groove A (221) front, pin (24) inner face are slidably matched with lock pin (22) outer wall, and pin (24) outer end is embedded in groove B (231).

4. core drilling rig control mechanism according to claim 2, it is characterised in that: the diverter module includes valve housing (31), shell (32) and trigger mechanism are locked, center-pole (14) passes through valve housing (31) inner cavity, and valve housing (31) is in lock shell (32) in, valve housing (31) includes seal section C (311) and diversion section (312) from back to front, and lock shell (32) wraps from back to front Inflow segment B (321) and outflow section B (322) are included, is had between center-pole (14) and inflow segment B (321) fluid passage D (44), center-pole (14) Have fluid passage E (45) between outer wall and valve housing (31) inner wall, (44) rear end fluid passage D be connected to fluid passage B (42), fluid passage E (45) with Fluid passage D (44) connection, fluid passage E (45) are connected to front drill bit cooling hole, and inflow segment B (322) internal diameter is greater than seal section C (311) outer diameter, seal section C (311) outer diameter are greater than diversion section (312) outer diameter, and outflow section B (322) internal diameter is equal to seal section C (311) outer diameter, outflow section B (322) are provided with tap hole B (3221), and tap hole B (3221) is connected to hydraulic motor, seal section C (311) front end is connected in inflow segment B (321), fluid passage D (44) with tap hole B (3221).

5. core drilling rig control mechanism according to claim 4, it is characterised in that: the valve housing (31) further includes lock Tight section A (313), locking section A (313) are connect with diversion section (312) front end, and the lock shell (32) further includes locking section B (323), locking section B (323) is connected with outflow section B (322) front end, and outer cylinder (23) inner wall is connected with emergency gear (232), institute Stating trigger mechanism includes lock sleeve (33), fixed ring (35) and emergency gear (232), and lock shell (32) passes through in lock sleeve (33) Chamber, locking section A (313) outer wall are provided with locking slot A (3131), there is locking hole A (3231) and locking on locking section B (323) In front of locking hole A (3231), locking hole A (3231) and locking hole B (3232) are logical by hole B (3232), locking hole B (3232) Have lock ball (34) in hole, locking hole A (3231) and locking hole B (3232), lock ball (34) diameter is greater than locking hole A (3231) depth, lock sleeve (33) include impact section (331) and locking section C (332) from back to front, and locking section C (332) inner wall has Locking slot B (3321) and locking slot C (3322), locking slot C (3322) in front of the locking slot B (3321), locking slot B (3321) with The distance between locking slot C (3322) is equal to the distance between locking hole A (3231) and locking hole B (3232), the fixed ring (35) it is fixed on locking section B (323) outer wall, fixed ring (35) is greater than fixed ring in the rear locking hole A, impact section (331) internal diameter (35) outer diameter, emergency gear (232) include card-tight part (2321) and press section (2322), press section (2322) front end from back to front Face internal diameter is less than impact section (331) outer diameter, and press section (2322) internal diameter is not less than fixed ring (35) outer diameter, before card-tight part (2321) End face internal diameter is less than fixed ring (35) rear end face outer diameter, and center-pole (14) front end has limiting section (36), and limiting section (36) is outer in lock In the locking section B (323) of shell (32), limiting section (36) outer wall is provided with locking slot D (361), is provided with fluid passage F inside limiting section (36) (46), fluid passage F (46) has hole to be connected to fluid passage E (45).

6. core drilling rig control mechanism according to claim 5, it is characterised in that: the center-pole (14) and lock pin (22) Have between locking level (12) fluid passage C (43), locking level (12) side wall is provided with inflow hole (1241), fluid passage B (42) and fluid passage C (43) it is connected to by inflow hole (1241), fluid passage C (43) is connected to fluid passage D (44), and connecting tube (21) includes pressure release from back to front Section (212) and choked flow section (213), lock pin (22) and choked flow section (213) sealing cooperate, and choked flow section (213) internal diameter is less than pressure release section (212) internal diameter, pressure release section (212) are provided with relief hole (2121), and relief hole (2121) is through-hole, have shearing column in fluid passage B (42) It fills in (26), shearing plunger (26) internal diameter is greater than lock pin (22) and locking level (12) outer diameter, and shearing plunger (26) is cut off by terminating (25) it is connect with lock body (11), shearing plunger (26) includes cut section (261) and recoil section (262), cut section from back to front (261) outer wall and the sealing of lock body (11) inner wall cooperate, before recoil section (262) outer diameter is equal to pressure release section (212) relief hole (2121) Square part internal diameter, before stopping brill, recoil section (262) front end is in front of relief hole (2121) front end, recoil section (262) and pressure release section (212) relief hole (2121) forward portion sealing cooperation, after stopping brill, front liquid reflux impact shear plunger (26) front end is cut It cuts plunger (26) to move back, recoil section (262) front end is at relief hole (2121) front end rear, fluid passage B (42) and relief hole (2121) Connection.

7. core drilling rig control mechanism according to claim 2, it is characterised in that: locking level (12) outer wall and lock body (11) inner wall has mutually matched limited step.

8. core drilling rig control mechanism according to claim 2, it is characterised in that: it further include locking nut (15), locking Nut (15) perforation before and after lock body (11) rear, locking nut (15), center-pole (14) pass through locking nut (15) inner cavity, lock Tight nut (15) front end is threadedly coupled with lock body (11) rear end, and starting cuts off (13) at the screw thread of lock body (11) rear end.

9. core drilling rig control mechanism according to claim 8, it is characterised in that: the locking nut (15) includes fixing Section (151) and thread segment (152), locking level (12) step rear outer diameter are less than fixed section (151) internal diameter, and fixed section (151) is interior Diameter is less than outer diameter at locking level (12) step, connect in thread segment (152) with lock body (11) rear end.

10. core drilling rig control mechanism according to claim 8, it is characterised in that: the locking nut (15) is axially opened There is a fixation hole A, the fixation hole A is through-hole, and it is blind hole that lock body (11) rear end face, which has fixation hole B, fixation hole B, fixation hole A and solid Determine hole B pairing, further include fixing screws (16), fixing screws (16) length is greater than fixation hole A depth, and fixing screws (16) are solid Determine in the A of hole, fixing screws (16) front end passes through in fixation hole A insertion fixation hole B.