CN203515416U - Inner pipe assembly for drilling rope coring roof leakage - Google Patents
Inner pipe assembly for drilling rope coring roof leakage Download PDFInfo
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- CN203515416U CN203515416U CN201320655106.6U CN201320655106U CN203515416U CN 203515416 U CN203515416 U CN 203515416U CN 201320655106 U CN201320655106 U CN 201320655106U CN 203515416 U CN203515416 U CN 203515416U
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Abstract
The utility model discloses an inner pipe assembly for drilling rope coring roof leakage and mainly aims at solving the problem that a current inner pipe assembly is incapable of responding drill slurry in time. The inner pipe assembly comprises a salvaging mechanism, a slurry channel mechanism and a two-pipe single-action mechanism, wherein the slurry channel mechanism comprises an elastic clamping frame, a suspension joint, a joint and through holes; the upper end of the suspension joint is in threaded connection with the lower end of the elastic clamping frame; the joint is connected with the suspension joint; the through holes are formed in the suspension joint and the joint respectively; inside of the suspension joint and inside of the joint are hollow structures; a first channel, communicated with the inside of the suspension joint and the inside of the joint, is formed in the suspension joint; the hollow structures of the suspension joint and the joint, the first channel and the through holes of the hollow structures and the first channel are combined to form a slurry channel; and adjusting mechanism, used for changing a communication state between the inside of the suspension joint and the inside of the joint under the effect of slurry pressure, is also arranged in the slurry channel. The inner pipe assembly for drilling rope coring roof leakage is capable of monitoring the slurry condition in the drill by virtue of pressure display of a slurry pump.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of inner tube assembly, specifically, relates to a kind of wire line coring top and leaks to creep into and use inner tube assembly.
Background technology
When core drilling is constructed, the boring in each work area can run into leakage in various degree substantially, particularly creeps into cranny development stratum, lava solution cavity bottom, severely-weathered stratum, Quaternary system caving ground, leakage occurs while creeping into and be inevitable; Accordingly, when meeting boring total loss or severe leakage or the breakage of drilling tool top while causing lose returns, flushing liquor can not arrive in the time of maybe can not arriving shaft bottom drill bit completely, very easily cause the burning of bits, lock of tool drilling, the best treatment effect of great majority boring, also be that drilling tool or drill bit are retained in boring, and when processing burning of bits accident, also can make accident complicated, singly do not increased constructor's labour intensity, but also can cause a large amount of damage of equipment, drilling rod is lost in boring even, cause boring to be scrapped, lead to heavy losses.Yet, in prior art, mainly there is following defect in the inner tube assembly of core bit: in it, can not reflect the corresponding component that in slurry channel, whether mud misses midway, cause constructor when knowing boring total loss, severe leakage, cannot effectively judge that drilling tool top has or not breakage, whether there is mud and missed midway, do not delivered to the situation of drilling tool bottom, and this has very likely caused the generation of the accidents such as the burning of bits, bit freezing.
Further, for bore leaking, those skilled in the art have made a series for the treatment of measures, technology, as the application number Chinese invention patent " hole bottom freezing cord coring drill and coring method thereof " that is CN201010184043.1, application number is Chinese invention patent " a kind of cord coring drill " of CN201310313990.X etc., the technical improvement that above-mentioned patented technology is all being processed the burning of bits, lock of tool drilling, and for how preventing the burning of bits, lock of tool drilling, in prior art, do not have effective way.
Utility model content
The purpose of this utility model is to overcome above-mentioned defect, and a kind of compact conformation, reasonable in design and can know in time mud and whether deliver to drilling tool bottom is provided, and avoids causing because of lose returns the wire line coring top of the accidents such as the burning of bits, bit freezing to leak to creep into and uses inner tube assembly.
To achieve these goals, the technical solution adopted in the utility model is as follows:
Wire line coring top is leaked and is crept into inner tube assembly, comprises the salvaging mechanism, the slurry channel Agency And pipe single action mechanism that set gradually from top to bottom, wherein, described slurry channel mechanism comprises that upper end is connected with salvaging mechanism and can be driven and be arranged with on it by salvaging mechanism the bullet card holder in hole, the suspension joint that upper end is threaded with this bullet card holder lower end, the joint being connected with suspension joint, press-fit the hanging ring between suspension joint and joint, and be arranged at respectively the through hole on suspension joint and joint, suspension joint and joint inside are hollow structure, and on suspension joint, be provided with for being communicated with the first passage of suspension joint and joint inside, the hollow structure of suspension joint and joint and this first passage and the through hole on the two constitute slurry channel, it is characterized in that, in described slurry channel, be also provided with under the effect of mud pressure for changing the governor motion of the two inner connected state of suspension joint and joint.Based on this governor motion, need slush pump to have certain mud pressure export and determine while arriving this position and slurry channel could be opened, this pressure is set as 2.5-4 MPa conventionally, once ground shows the mud pressure of slush pump and sharply declines, illustrate that mud, from the leakage of drilling tool middle part, does not arrive governor motion position, do not arrive drilling tool bottom, can stop in time creeping into, thereby avoid the generation of the burning of bits, lock of tool drilling.Meanwhile, in the situation that drilling tool is intact, even if boring severe leakage or total loss, if the mud pressure showing on slush pump in the scope of setting value, illustrates that in drilling tool, mud is not missed, now can normally creep into completely, and need not delay the duration.
Based on same inventive concept, in the utility model, governor motion adopts following three kinds of schemes realization that slurry channel is opened with closed state and switched:
One
Described governor motion comprises the spool that is arranged at described bullet card holder lower end and is connected with bullet card holder by the first elastomeric element, and this spool lower end is extended and can under the effect of the first elastomeric element and mud, move up and down to the first passage on suspension joint.Spool moves down the first passage of blocking on suspension joint, realizes the shutoff to slurry channel, otherwise, on spool, move, slurry channel is opened.
They are two years old
Described governor motion comprises that to be positioned at suspension joint lower end outside and by the second elastomeric element, be connected with the lower end of joint also and can under the effect of the second elastomeric element, seal the regulating valve seat of first passage on suspension joint.On regulating valve seat, move the first passage of blocking on suspension joint, realize the shutoff to slurry channel, otherwise regulating valve seat moves down, slurry channel is opened.
They are three years old
Described governor motion comprises the spool that is arranged at described bullet card holder lower end and is connected with bullet card holder by the first elastomeric element, and is positioned at outside, suspension joint lower end and by the second elastomeric element, is connected with the lower end of joint and can under the effect of the second elastomeric element, seals the regulating valve seat of first passage on suspension joint; Spool and regulating valve seat are used in combination, it can reflect the lose returns situation of drilling tool middle part, bottom in time, and it is more accurate to reach the object that slurry channel state is switched, spool and regulating valve seat are drawn close the first passage sealing on suspension joint mutually, and the two is mutually away from the first passage of opening on suspension joint.
Further, in order to ensure the smooth overcurrent from the slurry channel of opening of mud, between first passage on described spool lower end and suspension joint, existing can be for the gap of mud overcurrent, meanwhile, the leakproofness of closing in order to ensure slurry channel, on described regulating valve seat, offer for holding the endoporus of termination, spool lower end, and the aperture of this endoporus is less than the bore of first passage on suspension joint.
In one embodiment, in described bullet card holder, offer cavity, described spool upper end is placed in this cavity and is connected with this cavity bottom by the first elastomeric element.
In order better to realize the utility model, on described spool, offer for limiting the bar hole of spool displacement stroke, and be fixed with the elastic cylindrical pin that is positioned at this bar hole.
Described salvaging mechanism comprises and drags for spearhead, with drag for that spearhead is connected drag for lance seat, be arranged at drag for lance seat outside and with the recovery tube that drags for that lance seat is connected and lower end is connected with hole in bullet card holder, and between recovery tube, form the bullet card chamber for the annular gap of mud overcurrent, and be arranged at the indoor bullet clamp of bullet card; Described bullet card holder is provided with avoids playing the bullet deck that clamp excessively open, and is provided with and is "eight" shape shape and plays clamp and it is opened and stretch out hole on recovery tube, be against the splayed spring on the inwall of bullet card chamber for strutting with respect to the one end that plays clamp.
Described two-tube single action mechanism comprises the axle being connected with joint, the sleeve base of being close to axle, the sliding sleeve being threaded connection with sleeve base, be socketed on the copper sheathing of axle outside, be socketed in the bearing support of this copper sheathing outside, and the spring housing being threaded with bearing support, axle, copper sheathing, bearing support constitutes a set of sliding bearing; Wherein, spring housing top has cavity, described axle lower end is stretched in this cavity and is provided with recoil spring in its end, and spring housing lower end is provided with the adjusting joint that is threaded with it and has the second channel being communicated with inner tube, and is connected to adjusting nut in this adjusting joint outer cover.
The inside that directly enters into adjusting joint and inner tube in the annular gap creeping into inner tube assembly and outer tube formation is leaked on this wire line coring top, in the upper port of described second channel, is provided with for stoping the steel ball of mud reverse flow.
The effect of steel ball is: the mud that enters inner tube by clip spring seat enters into after adjusting joint, can back down steel ball is discharged to this wire line coring top from two mud through holes of spring housing and leaks the annular gap creeping into inner tube assembly and outer tube formation, and Pressure Slurry in this annular gap is because the check function of steel ball can not enter in inner tube, avoids rock sample to be washed.
Compared with prior art, the beneficial effects of the utility model are:
(1) the utility model structure design is compact, reasonable, and it is convenient to realize.
(2) the utility model has been done larger improvement by slurry channel, and governor motion is set in slurry channel, governor motion can comprise one or both in spool, regulating valve seat as required, action by governor motion is carried out shutoff or unlatching to the first passage on suspension joint, realization is to the shutoff of whole slurry channel or unlatching, meanwhile, the action of governor motion is all to realize under the pressure of mud and the elastic force effect of elastomeric element; Utilize above-mentioned design, need slush pump to have certain mud pressure slurry channel could be opened, this pressure is set as 2.5-4 MPa conventionally, if the pressure on slush pump is in this range of set value, illustrate that in drilling tool, mud is not missed, can normally creep into, and need not delay the duration; Once the mud pressure that ground slush pump shows sharply declines, illustrate that mud misses from drilling tool midway, do not arrive governor motion position or drilling tool bottom, can stop in time creeping into, thereby avoid the generation of the burning of bits, lock of tool drilling.
(3) the utility model compared with prior art, not only possesses novelty and creativeness, and its material is common material, cheap, possesses very high practicality and the market competitiveness, for it, applies on a large scale, has established solid foundation.
Accompanying drawing explanation
Fig. 1 is the structural representation in the utility model.
Fig. 2 is top of the present utility model partial schematic diagram.
Fig. 3 is bottom of the present utility model partial schematic diagram.
Wherein, the corresponding title of Reference numeral: 1-bullet block head, 2-drags for spearhead, 4-recovery tube, 5-splayed spring, 6-bullet clamp, 7-bullet card chamber, 10-bullet deck, 11-bullet card holder, 12-the first elastomeric element, 13-elastic cylindrical pin, 14-spool, 15-suspension joint, 16-hanging ring, 17-seat ring, 18-regulating valve seat, 19-the second elastomeric element, 20-reamer, 21-joint, 22-sleeve base, 23-adjusting nut, 24-sliding sleeve, 25-bearing, 26-bearing holder (housing, cover), 27-bearing support, 28-copper sheathing, 29-axle, the 31-spring that recoils, 32-outer tube, 33-packing ring, 34-nut, 35-cottor pin, 36-spring housing, 37-steel ball, 38-adjusting nut, 39-regulates joint, 40-inner tube, 41-centering ring, 42-back-up ring, 43-jump ring, 44-clip spring seat, 45-drill bit, 46-spring, 47-locates briquetting, 49-drags for lance seat, 50-through hole.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.Embodiment of the present utility model includes but not limited to the following example.
Embodiment
As shown in Figures 1 to 3, the present embodiment provides a kind of wire line coring top to leak and has crept into inner tube assembly, mainly comprises the salvaging mechanism, the slurry channel Agency And pipe single action mechanism that set gradually from top to bottom.Wherein, salvaging mechanism is by adopting special-purpose marine salvage equipment to be connected with it, for whole inner tube assembly is proposed to salvage core from drilling tool; Slurry channel mechanism be same as for mud by and utilize mud to wash away drill bit, reach lubricated drilling tool, cooling drill bit and discharge the object of landwaste; Two-tube single action mechanism is used for connecting inner tube, jump ring etc., and gathers rock core by jump ring and component thereof.
In the present embodiment, the salvaging mechanism of salvaging mechanism and two-tube single action mechanism and inner tube assembly in prior art and two-tube single action mechanism are consistent, specifically:
Salvaging mechanism, salvaging mechanism comprises and drags for spearhead 2, with drag for that spearhead 2 is connected drag for lance seat 49, be arranged at drag for lance seat 49 outside and with the recovery tube 4 that drags for that lance seat is connected and lower end is connected with hole in bullet card holder 11, and between recovery tube 4, form the bullet card chamber 7 for the annular gap of mud overcurrent, and be arranged at the bullet clamp 6 in bullet card chamber 7; Bullet card holder 11 is provided with avoids playing the bullet deck 10 that clamp 6 excessively open, and be provided with respect to the one end that plays clamp 6, be "eight" shape shape and play clamp 6 and it is opened and stretch out hole on recovery tube 4, be against the splayed spring 5 on the inwall of bullet card chamber 7 for strutting, two shift forks of bullet block head 1 lower end being threaded with bullet card chamber 7 can be stirred and play clamp 6 and rotate.Salvaging mechanism is positioned at and plays block head 1, plays block head for jointed rod, plays after clamp open and stretches in the hole on recovery tube 4 and be against on the inwall of bullet card chamber 7.Drag for parts such as being also provided with spring 46, location briquetting 47 on lance seat 49.Adopt special-purpose fisher to block fishing head and upwards carry, drive recovery tube up, thereby force, play the tension force retraction that clamp overcome splayed spring, thereby whole inner tube assembly is proposed from drilling tool to salvage core.
Slurry channel mechanism, tradition slurry channel mechanism comprises that upper end is connected with salvaging mechanism and can be driven and be arranged with on it by salvaging mechanism the bullet card holder 11 in hole, the suspension joint 15 that upper end is threaded with these bullet card holder 11 lower ends, the joint 21 being connected with suspension joint 15, press-fit the hanging ring 16 between suspension joint and joint, and be arranged at respectively the through hole 51 on suspension joint 15 and joint 21, suspension joint 15 is hollow structure with joint 21 inside, and on suspension joint 15, be provided with for being communicated with the first passage of suspension joint 15 and joint 21 inside, the hollow structure of suspension joint 15 and joint and this first passage and the through hole on the two constitute slurry channel, suspension joint, on joint, be respectively drilled with four through holes, usually, this through hole is inclined hole.While adopting this structure, during slush pump slurry conveyed, the pressure demonstration of its pump is always zero, therefore, cannot determine whether midway leakage of drilling tool slurry according to the pressure showing on pump, the present embodiment, on the basis of said structure, is also provided with under the effect of mud pressure for changing the governor motion of suspension joint 15 and joint 21 the two inner connected state in slurry channel.
Inner tube assembly is dropped into behind outer tube 32 inside, by hanging ring 16, a whole set of this device is suspended on the seat ring 17 of reamer 20 interior assemblings, in the situation that not missing, mud between outer tube and inner tube in annular gap can only enter by the through hole on suspension joint suspension joint inside, then enters joint inside by slurry channel.
Based on above-mentioned governor motion, need slush pump to have certain mud pressure slurry channel could be opened, mud could be crossed and flow to drilling tool bottom from slurry channel, this pressure is set as 2.5-4 MPa conventionally, if mud is missed in drilling tool, be that mud is without governor motion and slurry channel, can directly in drilling tool, flow to drilling tool, so also just caused mud not arrive governor motion position or drilling tool bottom, and there is no the pressure limit effect of governor motion, the pressure of slush pump slurry conveyed can not reach setting value (2.5-4 MPa), will make like this ground show that the mud pressure of slush pump sharply declines, illustrate that mud is from the leakage of drilling tool middle part, can stop in time creeping into, thereby avoided the burning of bits, the generation of lock of tool drilling.Meanwhile, in the situation that drilling tool is intact, even if boring severe leakage or total loss, if the mud pressure showing on slush pump in the scope of setting value, illustrates that in drilling tool, mud is not missed, now can normally creep into completely, and need not delay the duration.
In the present embodiment, governor motion has selected three kinds of schemes to realize its effect:
One
Governor motion comprises that being arranged at bullet card holder 11 lower ends also passes through the spool 14 that the first elastomeric element 12 is connected with bullet card holder 11, and these spool 14 lower ends are extended also and can under the effect of the first elastomeric element 12 and mud, be moved up and down to the first passage on suspension joint 15.The first elastomeric element can be selected the parts of flexible function, as: spring, spool moves down the first passage of blocking on suspension joint, realizes the shutoff to slurry channel, otherwise, on spool, move, slurry channel is opened.First mud pressure will overcome after the elastic force of the first elastomeric element, just can force spool to be opened, and realizes overcurrent.
They are two years old
Governor motion comprises the regulating valve seat 18 that is positioned at suspension joint 15 outsides, lower ends and is connected and can seals first passage on suspension joint 15 by the second elastomeric element 19 with the lower end of joint 21 under the effect of the second elastomeric element 19.On regulating valve seat, move the first passage of blocking on suspension joint, realize the shutoff to slurry channel, otherwise regulating valve seat moves down, slurry channel is opened.First mud pressure will overcome after the elastic force of the second elastomeric element, just can force regulating valve seat to be opened, and realizes overcurrent.
They are three years old
Governor motion comprises the spool 14 that is arranged at bullet card holder 11 lower ends and is connected with bullet card holder 11 by the first elastomeric element 12, and is positioned at suspension joint 15 outsides, lower ends and by the second elastomeric element 19, is connected the regulating valve seat 18 that also can seal first passage on suspension joint 15 under the effect of the second elastomeric element 19 with the lower end of joint 21; Spool 14 draws close with regulating valve seat 18 first passage sealing on suspension joint 15 mutually, and the two is mutually away from the first passage of opening on suspension joint 15.Spool and regulating valve seat are used in combination, and it can reflect the lose returns situation of drilling tool middle part, bottom in time, and it is more accurate to reach the object that slurry channel state is switched.If lose returns, mud pressure is not enough to overcome the elastic force of the first elastomeric element and the second elastomeric element, spool and regulating valve seat are drawn close the first passage on sealing suspension joint mutually, now, mud has not been flowed directly to drilling tool through slurry channel outside, and ground slush pump slurry conveyed is without the force value of setting, and its pressure demonstration sharply declines or is zero, represent lose returns in drilling tool, should stop in time creeping into operation; If mud is not missed in drilling tool, mud arrives in slurry channel, and the pressure of slush pump slurry conveyed should arrive after setting value, just can overcome the elastic force of the first elastomeric element and the second elastomeric element, push spool and regulating valve seat open, the two is mutually away from the first passage of opening on suspension joint, and slurry channel is opened, and drilling tool normally enters slurry.
In order better to realize the present embodiment, on the basis of such scheme three, between first passage on spool 14 lower ends and suspension joint 15, existing can be for the gap of mud overcurrent, on regulating valve seat 18, offer for holding the endoporus of spool 14 terminations, lower end, and the aperture of this endoporus is less than the bore of first passage on suspension joint 15.
For the ease of the installation of spool, meanwhile, for it provides enough motion spaces, play in card holder 11 and offer cavity, spool upper end is placed in this cavity and is connected with this cavity bottom by the first elastomeric element 12.
Further, on spool 14, offer for limiting the bar hole of spool 14 displacement stroke, and be fixed with the elastic cylindrical pin 13 that is positioned at this bar hole.It is benchmark that the displacement upper limit of spool be take the length of this bar hole, mobile while propping up bar hole lower end under spool, no longer moves, and in like manner, moves while propping up the fast upper end of bar shaped on spool, no longer moves.
Two-tube single action mechanism, comprise the axle 29 being connected with joint 21, the sleeve base 22 of being close to axle 29, the sliding sleeve 24 being threaded connection with sleeve base 22, be socketed on the copper sheathing 28 of axle 29 outsides, be socketed in the bearing support 27 of these copper sheathing 28 outsides, be arranged at the bearing 25 between sliding sleeve 24 and bearing support 27, and the spring housing 36 being threaded with bearing support 27, axle 29, copper sheathing 28, bearing support 27 constitutes a set of sliding bearing; Wherein, spring housing 36 tops have cavity, described axle 29 lower ends are stretched in this cavity and in its end, are provided with recoil spring 31, spring housing 36 lower ends are provided with the adjusting joint 39 that is threaded with it and has the second channel being communicated with inner tube, and be connected to adjusting nut 38 in these adjusting joint 39 outer cover, by the distance between the adjustable clip spring seat 44 of this adjusting nut and drill bit 45.Wherein, bearing 25 is outer is provided with bearing holder (housing, cover) 26, and the bottom of axle is also provided with the parts such as packing ring 33, nut 34, cottor pin 35.
Further, for fear of mud from this wire line coring, top is leaked and is crept into the inside that directly enters into adjusting joint with inner tube assembly and the annular gap of outer tube 32 formation, in the upper port of second channel, is provided with for stoping mud to enter the steel ball 37 of inner tube 40 from outside.
Regulate the lower end of joint to be connected with inner tube 40, inner tube outside is provided with centering ring 41, inner ring lower end is provided with back-up ring 42, jump ring 43 and clip spring seat 44, outer tube 32 lower ends are by the centering ring 41 of screw thread compression fit in reamer 20 and be connected with drill bit 45 by reamer, the core drilling through directly enters inner tube 40 inside by clip spring seat 44, jump ring 43, while carrying on inner tube assembly, jump ring 43 shrinks and embraces firmly core, thereby completes the work of sampling.Connection, position relationship in two-tube single action mechanism and salvaging mechanism between parts and parts are prior art, therefore, in the present embodiment, are not described further.
According to above-described embodiment, just can realize well the utility model.What deserves to be explained is; under prerequisite based on above-mentioned design principle; for solving same technical problem; even if some that make on architecture basics disclosed in the utility model are without substantial change or polishing; the essence of the technical scheme adopting is still the same with the utility model, therefore it also should be in protection domain of the present utility model.
Claims (10)
1. wire line coring top is leaked and is crept into inner tube assembly, comprises the salvaging mechanism, the slurry channel Agency And pipe single action mechanism that set gradually from top to bottom, wherein, described slurry channel mechanism comprises that upper end is connected with salvaging mechanism and can be driven and be arranged with on it by salvaging mechanism the bullet card holder (11) in hole, the suspension joint (15) that upper end is threaded with this bullet card holder (11) lower end, the joint (21) being connected with suspension joint (15), press-fit the hanging ring (16) between suspension joint and joint, and be arranged at respectively the through hole (51) on suspension joint (15) and joint (21), suspension joint (15) is hollow structure with joint (21) inside, and on suspension joint (15), be provided with for being communicated with suspension joint (15) first passage inner with joint (21), the hollow structure of suspension joint (15) and joint and this first passage and the through hole on the two constitute slurry channel, it is characterized in that, in described slurry channel, be also provided with under the effect of mud pressure for changing the governor motion of suspension joint (15) and the two inner connected state of joint (21).
2. wire line coring according to claim 1 top is leaked and is crept into inner tube assembly, it is characterized in that, described governor motion comprises that being arranged at described bullet card holder (11) lower end also passes through the spool (14) that the first elastomeric element (12) is connected with bullet card holder (11), and this spool (14) lower end is extended and can under the effect of the first elastomeric element (12) and mud, move up and down to the first passage on suspension joint (15).
3. wire line coring according to claim 1 top is leaked and is crept into inner tube assembly, it is characterized in that, described governor motion comprises that be positioned at outside also connection with the lower end of joint (21) by the second elastomeric element (19) of suspension joint (15) lower end also can seal the above regulating valve seat (18) of first passage of suspension joint (15) under the effect of the second elastomeric element (19).
4. wire line coring according to claim 1 top is leaked and is crept into inner tube assembly, it is characterized in that, described governor motion comprises the spool (14) that is arranged at described bullet card holder (11) lower end and is connected with bullet card holder (11) by the first elastomeric element (12), and is positioned at the outside regulating valve seat (18) that is also connected and can seals the upper first passage of suspension joint (15) by the second elastomeric element (19) with the lower end of joint (21) under the effect of the second elastomeric element (19) in suspension joint (15) lower end; Described spool (14) draws close with regulating valve seat (18) first passage sealing on suspension joint (15) mutually, and the two is mutually away from the first passage of opening on suspension joint (15).
5. wire line coring according to claim 4 top is leaked and is crept into inner tube assembly, it is characterized in that, between first passage on described spool (14) lower end and suspension joint (15), existing can be for the gap of mud overcurrent, on described regulating valve seat (18), offer for holding the endoporus of spool (14) termination, lower end, and the aperture of this endoporus is less than the bore of the upper first passage of suspension joint (15).
6. according to the wire line coring top described in claim 2 or 4 or 5, leak and creep into inner tube assembly, it is characterized in that, in described bullet card holder (11), offer cavity, described spool upper end is placed in this cavity and by the first elastomeric element (12) and is connected with this cavity bottom.
7. wire line coring according to claim 6 top is leaked and is crept into inner tube assembly, it is characterized in that, on described spool (14), offer for limiting the bar hole of spool (14) displacement stroke, and be fixed with the elastic cylindrical pin (13) that is positioned at this bar hole.
8. wire line coring according to claim 1 top is leaked and is crept into inner tube assembly, it is characterized in that, described salvaging mechanism comprises and drags for spearhead (2), with drag for that spearhead (2) is connected drag for lance seat (49), be arranged at drag for lance seat (49) outside and with the recovery tube (4) that drags for that lance seat is connected and lower end is connected with hole in bullet card holder (11), and between recovery tube (4), form the bullet card chamber (7) for the annular gap of mud overcurrent, and be arranged at the bullet clamp (6) in bullet card chamber (7); Described bullet card holder (11) is provided with avoids playing the bullet deck (10) that clamp (6) excessively open, and is provided with and is "eight" shape shape and plays clamp (6) and it is opened and stretch out hole on recovery tube (4), be against the splayed spring (5) on the inwall of bullet card chamber (7) for strutting with respect to the one end that plays clamp (6).
9. wire line coring according to claim 1 top is leaked and is crept into inner tube assembly, it is characterized in that, described two-tube single action mechanism comprises the axle (29) being connected with joint (21), the sleeve base (22) of being close to axle (29), the sliding sleeve (24) being threaded connection with sleeve base (22), be socketed on the outside copper sheathing (28) of axle (29), be socketed in the outside bearing support (27) of this copper sheathing (28), and the spring housing (36) being threaded with bearing support (27), axle (29), copper sheathing (28), bearing support (27) constitutes a set of sliding bearing; Wherein, spring housing (36) top has cavity, described axle (29) lower end is stretched in this cavity and in its end, is provided with recoil spring (31), spring housing (36) lower end is provided with the adjusting joint (39) that is threaded with it and has the second channel being communicated with inner tube, and is connected to adjusting nut (38) in this adjusting joint (39) outer cover.
10. wire line coring according to claim 9 top is leaked and is crept into inner tube assembly, it is characterized in that, in the upper port of described second channel, is provided with the steel ball (37) for stoping mud reverse flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320655106.6U CN203515416U (en) | 2013-10-23 | 2013-10-23 | Inner pipe assembly for drilling rope coring roof leakage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320655106.6U CN203515416U (en) | 2013-10-23 | 2013-10-23 | Inner pipe assembly for drilling rope coring roof leakage |
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| CN203515416U true CN203515416U (en) | 2014-04-02 |
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| CN201320655106.6U Expired - Fee Related CN203515416U (en) | 2013-10-23 | 2013-10-23 | Inner pipe assembly for drilling rope coring roof leakage |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265189A (en) * | 2014-09-05 | 2015-01-07 | 无锡中地地质装备有限公司 | Elastic clip chamber structure for drilling tool clamping |
| CN106884626A (en) * | 2017-02-28 | 2017-06-23 | 中国地质科学院勘探技术研究所 | A kind of two-tube drilling tool detent mechanism of anti-dieback formula |
| CN109281627A (en) * | 2018-08-13 | 2019-01-29 | 中国地质科学院勘探技术研究所 | A kind of anti-dieback bullet card positioning mechanism of more piece hinge type |
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2013
- 2013-10-23 CN CN201320655106.6U patent/CN203515416U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265189A (en) * | 2014-09-05 | 2015-01-07 | 无锡中地地质装备有限公司 | Elastic clip chamber structure for drilling tool clamping |
| CN106884626A (en) * | 2017-02-28 | 2017-06-23 | 中国地质科学院勘探技术研究所 | A kind of two-tube drilling tool detent mechanism of anti-dieback formula |
| CN109281627A (en) * | 2018-08-13 | 2019-01-29 | 中国地质科学院勘探技术研究所 | A kind of anti-dieback bullet card positioning mechanism of more piece hinge type |
| CN109281627B (en) * | 2018-08-13 | 2024-02-20 | 中国地质科学院勘探技术研究所 | Multisection hinge type anti-top dead spring card positioning mechanism |
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