CN103884534B - A kind of obturation underground site sampler - Google Patents
A kind of obturation underground site sampler Download PDFInfo
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- CN103884534B CN103884534B CN201410138880.9A CN201410138880A CN103884534B CN 103884534 B CN103884534 B CN 103884534B CN 201410138880 A CN201410138880 A CN 201410138880A CN 103884534 B CN103884534 B CN 103884534B
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Abstract
The present invention proposes a kind of obturation underground site sampler, is made up of external structure and inner structure.External structure comprises outer sleeve (6), top cover (1), afterburning handle (17), diamond head (10); The inner structure of device comprises sleeve pipe (5) on inner sleeve (7), inner sleeve, inner sleeve running casing (8), stop motion mechanism, C type movable snap ring (9).This device can obtain the reference block of Underground filler, has the series of advantages such as processing is simple, easy to carry, sampling is quick, obturation sample (14) that is that take out is injury-free.During sampling, rotate afterburning handle (17), and the pressure to obturation is applied to sampler, diamond head (10) is cut gradually into obturation; After sampler is drilled into preposition, fracture obturation, takes out sampler, and sampling is taken out thereupon in hole.This device can ensure that the integrality of obturation sample is to obtain the most real strength of filling mass, easy to carry, also can use power equipment, but the use of device is not by the restriction in power source place.
Description
Technical field
The present invention relates to a kind of obturation sampler, particularly obturation underground site sampler, can be applicable to the mine of the method for mining by the way of filling, sampled by this device, to obtain the test block of Underground filler intensity detection.
Background technology
The method of mining by the way of filling fully reclaiming mineral resources, control in deep mining Ground pressure activity and environmental protect protection, to there is obvious advantage and obtained significant effect; thus the most attention of mining industry circle is caused; the method of mining by the way of filling obtains in China and even countries in the world and applies more and more widely, and in China's underground mine, the non-ferrous metal large medium-size mine of 45% and the gold mine of 37% all adopt stowing method.
Strength of filling mass is the key parameter of the method for mining by the way of filling, but due to the impact of each factors such as each component material physicochemical property of filling slurry, pulp density, filling process, the strength of filling mass in each mine is in continuous variable condition.If strength of filling mass is too high, then means and cause jointing compound such as with the addition of too much cement filling cost too high, cause unnecessary waste; If strength of filling mass is too low, then likely cause the series of problems such as stope collapses, casualties, equipment are impaired, ore losses.The actual strength of accurate grasp Underground filler, is not only related to the safety of mine personnel, equipment, is all vital to reduction mining cost, raising ore recovery ratio and the rate of dilution.Underground filler sampling is a technical barrier always, generally can adopt down-hole adamantine drill sampling, the pre-buried die trial in down-hole, get obturation sample after the method such as to cut.
If adopt down-hole adamantine drill sampling, following Railway Project can be there is:
Adamantine drill is mainly used in obtaining obturation sample, therefore velocity of rotation is than very fast, but strength of filling mass is generally 0.1MPa-5MPa, be only the 1/20-1/100 of general rock strength, obturation is very easy to be damaged under the effect of adamantine drill High Rotation Speed, is difficult to obtain complete obturation;
Obturation has the feature that water cut is large, intensity is low, if adopt core-drill(ing) machine sampling, under high rotating speed effect, obturation still easily occurs liquefaction phenomenon, is difficult to obtain complete sample;
General down-hole core drilling internal diameter is Φ 45mm or less, but because strength of filling mass value is little, need the sample of larger diameter (being generally greater than Φ 70mm) just can obtain comparatively accurate strength of filling mass, therefore down-hole core-drill(ing) machine is difficult to obtain the appropriate boring head, the drilling tool that are applicable to obturation specimen size requirement;
Adopt the pre-buried die trial in down-hole to obtain the approach of obturation test block, also there is very large disadvantage:
The pre-buried filling die trial in down-hole, must wait until after stope filling that the exploitation of adjacent stope just can be taken out to pre-buried place, and obturation is by shortest time of disclosing often beyond month even several months, and the sample period is long;
The grab sample to anywhere obturation can not be realized, therefore cannot monitor the actual strength of any one stope filling body, also cannot monitor the strength of filling mass of any point in stope, be unfavorable in Quality of filling body control and pipe.
When getting pre-buried test block in obturation, often adopt the machinery even means of explosion, not only waste time and energy, filling sample is very easy to sustain damage in sampling process;
Down-hole is adopted to get bulk obturation, also can cutting processing be the obturation test block of standard, but because strength of filling mass is low, the process of getting bulk from Underground filler is exactly a destructive process to obturation, filling test block can cause its secondary damage again in process again, and the method is difficult to obtain strength of filling mass value accurately.
Summary of the invention
The present invention is intended at least solve one of above-mentioned technological deficiency.
For this reason, first object of the present invention is to propose a kind of obturation underground site sampler, is applied to the sampling of obturation underground site, comprises external structure and inner structure two parts,
It is characterized in that: external structure comprises outer sleeve (6), top cover (1), afterburning handle (17), diamond head (10); Outer sleeve (6) upper end is connected with top cover (1) lower end, and outer sleeve (6) lower end is connected with diamond head (10);
Inner structure comprises sleeve pipe (5) on inner sleeve (7), inner sleeve, inner sleeve running casing (8), stop motion mechanism, C type movable snap ring (9), and inner sleeve (7) is connected with sleeve pipe on inner sleeve (5) and inner sleeve running casing (8) at two ends up and down respectively; Stop motion mechanism is placed between top cover (1) and inner sleeve (7), described stop motion mechanism top contacts with top cover on-fixed, bottom is connected with inner sleeve (7) indirectly by sleeve pipe on inner sleeve (5), inner sleeve running casing (8) contacts with diamond head (10) on-fixed, and C type movable snap ring (9) is placed in inner sleeve running casing (8).
Preferably, described outer sleeve (6) upper end is detachable connection with the connected mode of top cover (1) lower end, and the connected mode of described outer sleeve (6) lower end and diamond head (10) is also detachable connection.
Preferably, described stop motion mechanism comprises ball grooves (2), bearing or ball (3) and supports cap (4); Be mounted with described bearing or ball (3) in described ball grooves (2), ball grooves (2) lower end is fixedly connected with support cap (4).
Preferably, described stop motion mechanism top contacts with top cover on-fixed, bottom is specially by sleeve pipe on inner sleeve (5) and inner sleeve (7) are indirectly connected: ball grooves (2) upper end contacts with top cover (1) on-fixed, and on inner sleeve, sleeve pipe (5) is connected with inner sleeve (7) upper end is detachable with support cap (4) lower end at two ends up and down respectively.
Preferably, described top cover (1) upper end is right cylinder, and it has through hole (12) and a square opening (13) of the afterburning handle of an insertion, described through hole (12) direction is described right cylinder radial direction; Described square opening (13) is along right cylinder axial direction; Described afterburning handle (17) is yi word pattern bar.
Preferably, described outer sleeve (6) is a tubular structure; Described inner sleeve (7) is made up of two half slot structures, and described inner sleeve (7) upper/lower terminal and sleeve pipe on inner sleeve (5), inner sleeve running casing (8) is detachable is connected.
Preferably, described inner sleeve (7) upper/lower terminal and sleeve pipe on inner sleeve (5), inner sleeve running casing (8) are threaded connection that mechanism is detachable to be connected.
Preferably, described inner sleeve running casing (8) outside is one cylindrical, and external diameter remains unchanged; The inside of inner sleeve running casing (8) is a reverse frustoconic, and internal diameter from top to bottom diminishes gradually.
Preferably, C type movable snap ring (9) is non-closed annulus, in funnel-shaped structure, lateral surface is close to inner sleeve running casing (8) medial surface, external diameter from top to bottom reduces gradually, internal diameter is equal with diamond head (10) internal diameter, can move up and down in inner sleeve running casing (8).
Preferably, described diamond head (10), in cylinder type, is bumped into adamas (11) in the bit face of diamond head (10) lower end.
The advantage of this sampler is:
(1) obturation sampler adopts and manually loads sampling, compared with the mechanical load sampling modes such as obturation sample rig, drill jumbo, sampler rotating speed can freely control, avoid the damage and fracture of obturation uniaxial compressive strength only being had to rock mass 1/20-1/100, can the most real strength of filling mass be obtained.
(2) owing to devising inner sleeve (7), when outer sleeve (6) rotation is crept into downwards, inner sleeve (7) does not rotate with outer sleeve (6), relative displacement is not produced between obturation sample (14) and inner sleeve (7), little to the damage of obturation, for the obturation that uniaxial compressive strength is less, the integrality of obturation sample can be ensured.
(3) sampler is easy to carry, get final product the power of rotation when end user's masterpiece is sampling, incision obturation, the rotating speed adjustable electric motor that battery-type also can be adopted to drive is as power, not by the restriction in power source place, arbitrary place, random time can sample in down-hole, be applicable to mine filler quality monitoring, be also applicable to the actual conditions that borehole operation is wide, operating location changes greatly, power source is limited.
(4) sampler simplicity of design, each ingredient is mine spare part in common, processes very convenient, according to the requirement of obturation sample different-diameter to be got, can process different samplers.
The present invention successfully solves the difficult problem of Underground filler sampling, and to Optimization Packing match ratio and stope structure size, to reduction cement mixing content and filling cost, raising personnel in the pit, equipment all have very important significance in the safety of borehole operation.
Accompanying drawing explanation
Fig. 1 is obturation on-site sampling device front elevation.
Fig. 2 is obturation on-site sampling device side view.
Fig. 3 is obturation on-site sampling device vertical view.
Fig. 4 is afterburning handle, and (a) is afterburning handle side view, and (b) is afterburning handle front elevation.
Fig. 5 is electrical equipment.
Fig. 6 is obturation on-site sampling device cut-open view (along I-I cut-open view).
Fig. 7 is obturation on-site sampling device cut-open view (along II-II cut-open view).
Fig. 8 is obturation on-site sampling device cut-open view (along III-III cut-open view).
When Fig. 9 is the sampling of obturation on-site sampling device, constitutional diagram when obturation sample has just entered inner sleeve running casing.
When Figure 10 is the sampling of obturation on-site sampling device, constitutional diagram when obturation sample has just entered inner sleeve.
Figure 11 is by constitutional diagram when obturation sample is carried after the sampling of obturation on-site sampling device terminates.
In figure: 1-top cover; 2-ball grooves; 3-bearing/ball; 4-supports cap; Sleeve pipe on 5-inner sleeve; 6-outer sleeve; 7-inner sleeve; 8-inner sleeve running casing; 9-C type movable snap ring; 10-diamond head; 11-adamas; 12-through hole; 13-square opening; 14-obturation sample; 15-selector button; 16-power knob; The afterburning handle of 17-.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
Fig. 1-3,6 is respectively the front elevation of the obturation on-site sampling device of the embodiment of the present invention, side view, vertical view and cut-open view.
In this enforcement, obturation on-site sampling device is formed primarily of external structure and inner structure two parts.
Wherein, the external structure of obturation on-site sampling device is made up of outer sleeve (6), top cover (1), afterburning handle (17), diamond head (10).
(1) outer sleeve (6) is a tubular structure, and all there is internal thread at upper and lower two ends, and upper end is connected with top cover (1) lower end, and lower end is connected with diamond head (10), plays intermal force.
(2) top cover (1) upper end is right cylinder, it there is the through hole (12) of a vertical cylindrical body axis run through top cover, by in afterburning handle (17) patchhole, this device rotary motion can be driven when afterburning handle (17) carries out circular motion; In addition, top cover (1) has one along cylinder axis to square opening (13), can by the rotating head of electrical equipment (as shown in Figure 5) insert driving device rotate; The external thread that mates with outer sleeve (6) upper end internal thread of top cover lower end turning, for it being connected with outer sleeve (6) upper end is detachable, the power putting on top cover (1) is made to be passed to outer sleeve (6) and diamond head (10).
(3) as shown in Figure 4, afterburning handle (17) is yi word pattern bar, handle can be unloaded, reduce sampler volume when storage, carrying sampler; During to on-site sampling, afterburning handle (17) is inserted the through hole (12) crossing the vertical cylinder axis of top cover (1), by pressurization of holding with a firm grip, rotate afterburning handle (17), the top cover (1) that drive is attached thereto, outer sleeve (6), diamond head (10) rotate, and make bit cutting enter in obturation; For the obturation of varying strength, the afterburning handle (17) of different length also can be adopted afterburning, to reach different afterburning effects.
(4) diamond head (10) is in cylinder type, and its upper end turning external thread mated with outer sleeve (6) lower end internal thread, makes it to be connected with outer sleeve (6) lower end is detachable; Adamas (11) is bumped in the bit face of diamond head (10) lower end.
The inner structure of obturation on-site sampling device is made up of sleeve pipe (5), inner sleeve running casing (8), stop motion mechanism, C type movable snap ring (9) on inner sleeve (7), inner sleeve.
(1) inner sleeve (7) is for mutually fastening formed tubular structure by two half slots, two half slots can be rived vertically by one section of pipe and be formed, the upper and lower two ends of half slot all machined external thread, will install sleeve pipe on inner sleeve (5) and inner sleeve running casing (8) respectively.
(2) equal turning internal thread in sleeve pipe (5) two ends on inner sleeve, lower end internal thread mates with half slot upper external screw thread, to be connected with inner sleeve (7) upper end is detachable, upper end internal thread mates, to be connected with the support cap (4) in stop motion mechanism is detachable with support cap (4) lower end external thread.
(3) inner sleeve running casing (8) upper end turning internal thread, this internal thread mates with half slot lower end external thread, inner sleeve running casing (8) upper end is connected with inner sleeve (7) lower end is detachable, lower end contacts with diamond head (10) on-fixed (namely both contact but are not mechanically connected, and both can relatively independently be moved).Inner sleeve running casing (8) outside is one cylindrical, and external diameter remains unchanged; The inside of inner sleeve running casing (8) is a reverse frustoconic, and internal diameter from top to bottom diminishes gradually, as shown in FIG. 8 and 9.
(4) stop motion mechanism is placed between top cover (1) and inner sleeve (7), both are kept apart, its top contact with top cover but not mechanical be connected, bottom is then connected with inner sleeve (7) indirectly by sleeve pipe on inner sleeve (5), makes the rotation of top cover (1) that inner sleeve (7) can not be driven to rotate.Wherein, this stop motion mechanism is made up of ball grooves (2), bearing/ball (3), support cap (4).Ball grooves (2) buried bearing/ball (3), its upper end contacts with top cover (1) on-fixed, and its lower end is closely fixedly linked with support cap (4), and can not occur relatively in rotary moving; As mentioned above, support cap (4) upper end and ball grooves (2) lower end are closely fixedly linked, there is the external thread mated with sleeve pipe on inner sleeve (5) internal thread lower end then car, makes it be connected with sleeve pipe on inner sleeve (5) is detachable.
(5) C type movable snap ring (9) is non-closed annulus, is placed in inner sleeve running casing (8); Its profile is funnel-shaped structure, and lateral surface is close to inner sleeve running casing (8) medial surface, and external diameter from top to bottom reduces gradually, can move up and down in inner sleeve running casing (8) in certain limit; Its inside is cylindrical, and internal diameter remains unchanged, and size is equal with diamond head (10) internal diameter.C type movable snap ring (9) lower end is bell-mouth structure of air, during sampling after obturation sample (14) enters inner sleeve (6), can play guide effect.
According to obturation on-site sampling device of the present invention; because its outer sleeve (6) is connected with inner sleeve (7) on-fixed; when top cover (1) outer power rotates; outer sleeve (6) is only driven to rotate sampling; inner sleeve (7) does not then rotate with top cover (1) rotation because of the setting of stop motion mechanism, plays the object of protection obturation sample integrality.
During sampling, insert in the hole (12) of first afterburning handle (17) being inserted vertical cylinder axis or by the rotating head of electrical equipment along cylinder axis to square opening (12) in; Sampler is placed in obturation to be sampled, rotate afterburning handle (17) or open electrical equipment driving device and rotate, and the pressure to obturation is applied to sampler, under rotation and pressure effect, diamond head (10) cuts gradually into obturation.
In sampling process, to contact with inner sleeve running casing (8) due to C type movable snap ring (9) but to be not mechanically connected, therefore can move up and down in inner sleeve running casing (8), below in conjunction with the different phase of obturation on-site sampling device of the present invention in sampling process, the working method of C type movable snap ring (9) is described in detail:
(1) under normal circumstances or sampling time obturation sample (14) when not entering into inner sleeve (7), C type movable snap ring (9) is only by gravity, and its state is as shown in the partial enlarged drawing in Fig. 9.
(2) when obturation sample (14) enters into inner sleeve (7), C type movable snap ring (9) and obturation sample (14) surface contact produce and rub, under the effect of friction force, C type movable snap ring (9) moves until stop after being subject to inner sleeve (7) restriction, its state is as shown in the partial enlarged drawing in Figure 10.
(3) after sampler is drilled into preposition, slightly toward the sampler that swings, broken obturation, this device is used to be taken out from obturation by obturation sample (14), now gravitate obturation sample (14) and C type movable snap ring (9) move down, now the overall C type movable snap ring (9) in funnel-shaped structure slides down to certain position and just stops sliding, but now continuation may be glided by obturation sample (14), in this process, obturation sample (14) rubs owing to contacting with C type movable snap ring (9), to displacement under continuation drives C type movable snap ring (9) to produce by obturation sample (14), C type movable snap ring (9) is in the process moved down, C type snap ring opening (9) Stepwize Shrink, when its internal diameter is less than the diameter of obturation sample (14), obturation sample (14) is subject to when gliding cannot continuing to glide from the friction barrier of C type movable snap ring (9), local is stuck, as shown in figure 11.By above action, complete the process of obturation sampler sampling.
Be below the specifications parameter of an obturation on-site sampling device of the present invention example:
(1) sampler top cover (1) external diameter 94mm, long 40mm, adopts common iron.
(2) afterburning handle (17) diameter 20mm, long 600mm, adopts common iron.
(3) outer sleeve (6) external diameter 94mm, internal diameter 88mm, upper and lower two ends are provided with internal thread, adopt common iron.
(4) inner sleeve (7) external diameter 84mm, internal diameter 78mm, long 260mm(obturation sample (14) length 200mm, can be processed as the reference block that 160mm is long, meet the sampling requirement of standard filling test block), material is common steel tube.
(5) sleeve pipe (5) external diameter 86mm, internal diameter 84mm on inner sleeve, openend Internal Threading, adopts common iron.
(6) inner sleeve running casing (8) external diameter 86mm, internal diameter maximum is 84mm, minimum place is 74mm, and its inside is a reverse frustoconic, and internal diameter from top to bottom diminishes gradually, openend Internal Threading, adopts common iron.
(7) diamond head (10) internal diameter 73mm, external diameter 100mm, long 120mm, can adopt national standard product.
(8) C type movable snap ring (9) is non-closed annulus, is placed in inner sleeve running casing (8); Its profile is funnel-shaped structure, and lateral surface is close to inner sleeve running casing (8) medial surface, and external diameter from top to bottom reduces gradually, and be 84mm, minimum for 80mm to the maximum, its internal diameter is 74mm, adopts common iron.
The step utilizing the carrying out of obturation on-site sampling device of the present invention to sample is as follows:
(1) be placed in obturation to be sampled by sampler, rotate afterburning handle (17), and apply the pressure to obturation to sampler, under rotation and pressure effect, diamond head (10) cuts gradually into obturation.
(2) after sampler is drilled into preposition, slightly toward the sampler that swings, broken obturation sample (14), goes out sampler afterwards, and the obturation sample (14) in sampler is taken out thereupon in hole.
(3) the lower diamond head (10) of dismounting, tilt sampler a little, the obturation sample (14) of inner sleeve (7) and inside thereof can take out thereupon, also sleeve pipe (8) on sleeve pipe (5), inner sleeve on dismountable inner sleeve, takes out the obturation sample (14) in it.
(4), after sampling terminates, each parts, after the coating lubricating oil of sampler each position, are installed and are resetted by cleaning sampler.
Although illustrate and describe embodiments of the invention, for the ordinary skill in the art, be appreciated that and can carry out multiple change, amendment, replacement and modification to these embodiments without departing from the principles and spirit of the present invention, scope of the present invention is by claims and equivalency thereof.
Claims (9)
1. an obturation underground site sampler, is applied to the sampling of obturation underground site, comprises external structure and inner structure two parts,
It is characterized in that: external structure comprises outer sleeve (6), top cover (1), afterburning handle (17), diamond head (10); Outer sleeve (6) upper end is connected with top cover (1) lower end, and outer sleeve (6) lower end is connected with diamond head (10);
Inner structure comprises sleeve pipe (5) on inner sleeve (7), inner sleeve, inner sleeve running casing (8), stop motion mechanism, C type movable snap ring (9), and inner sleeve (7) is connected with sleeve pipe on inner sleeve (5) and inner sleeve running casing (8) at two ends up and down respectively, stop motion mechanism is placed between top cover (1) and inner sleeve (7), described stop motion mechanism top contacts with top cover on-fixed, bottom is connected with inner sleeve (7) indirectly by sleeve pipe on inner sleeve (5), inner sleeve running casing (8) contacts with diamond head (10) on-fixed, C type movable snap ring (9) is placed in inner sleeve running casing (8), C type movable snap ring (9) is non-closed annulus, in funnel-shaped structure, lateral surface is close to inner sleeve running casing (8) medial surface, external diameter from top to bottom reduces gradually, internal diameter is equal with diamond head (10) internal diameter, can move up and down in inner sleeve running casing (8).
2. a kind of obturation underground site sampler according to claim 1, it is characterized in that: described outer sleeve (6) upper end is detachable connection with the connected mode of top cover (1) lower end, the connected mode of described outer sleeve (6) lower end and diamond head (10) is also detachable connection.
3. a kind of obturation underground site sampler according to claim 1, is characterized in that: described stop motion mechanism comprises ball grooves (2), bearing or ball (3) and supports cap (4); Be mounted with described bearing or ball (3) in described ball grooves (2), ball grooves (2) lower end is fixedly connected with support cap (4).
4. a kind of obturation underground site sampler according to claim 3, it is characterized in that: described stop motion mechanism top contacts with top cover on-fixed, bottom is specially by sleeve pipe on inner sleeve (5) and inner sleeve (7) are indirectly connected: ball grooves (2) upper end contacts with top cover (1) on-fixed, and on inner sleeve, sleeve pipe (5) is connected with inner sleeve (7) upper end is detachable with support cap (4) lower end at two ends up and down respectively.
5. a kind of obturation underground site sampler according to claim 1, it is characterized in that: described top cover (1) upper end is right cylinder, it has through hole (12) and a square opening (13) of the afterburning handle of an insertion, described through hole (12) direction is described right cylinder radial direction; Described square opening (13) is along right cylinder axial direction; Described afterburning handle (17) is yi word pattern bar.
6. a kind of obturation underground site sampler according to claim 1, is characterized in that: described outer sleeve (6) is a tubular structure; Described inner sleeve (7) is made up of two half slot structures, and described inner sleeve (7) upper/lower terminal and sleeve pipe on inner sleeve (5), inner sleeve running casing (8) is detachable is connected.
7. a kind of obturation underground site sampler according to claim 6, is characterized in that: described inner sleeve (7) upper/lower terminal and sleeve pipe on inner sleeve (5), inner sleeve running casing (8) are threaded connection that mechanism is detachable to be connected.
8. a kind of obturation underground site sampler according to claim 1, is characterized in that: described inner sleeve running casing (8) outside is one cylindrical, and external diameter remains unchanged; The inside of inner sleeve running casing (8) is a reverse frustoconic, and internal diameter from top to bottom diminishes gradually.
9. a kind of obturation underground site sampler according to claim 1, is characterized in that: described diamond head (10), in cylinder type, is bumped into adamas (11) in the bit face of diamond head (10) lower end.
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| CN105973636A (en) * | 2016-04-28 | 2016-09-28 | 长春黄金研究院 | Nondestructive sampling method of cemented filling body |
| CN107300504B (en) * | 2017-06-19 | 2019-09-13 | 金川集团股份有限公司 | A kind of Desending slicing admission passage filling body intensity on-the-spot test method |
| CN108168942B (en) * | 2018-03-09 | 2019-07-09 | 河北省建筑科学研究院有限公司 | A kind of ancient building dirt sampler and sampling method |
| CN113405850B (en) * | 2021-06-24 | 2022-03-29 | 北京科技大学 | Slurry on-site sampling device in goaf filling process and use method |
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| US5423398A (en) * | 1993-09-29 | 1995-06-13 | Sky Climber, Inc. | Mobile support device for window washers and the like |
| CN201497653U (en) * | 2009-04-01 | 2010-06-02 | 煤矿瓦斯治理国家工程研究中心 | Coal core sampler |
| US8770320B2 (en) * | 2009-11-03 | 2014-07-08 | Longyear Tm, Inc. | Core lifter |
| CN102109420B (en) * | 2009-12-23 | 2012-08-08 | 中国科学院生态环境研究中心 | Automatic sampler of undisturbed sediment deposit |
| CN201802320U (en) * | 2010-09-15 | 2011-04-20 | 中国石油天然气股份有限公司 | Mechanical hydraulic difunctional release sub |
| US8910707B2 (en) * | 2011-05-17 | 2014-12-16 | Klimack Holdings Inc. | Cement head |
| US8869917B2 (en) * | 2011-06-22 | 2014-10-28 | Coiled Tubing Rental Tools, Inc. | Housing, mandrel and bearing assembly for downhole drilling motor |
| CN202994532U (en) * | 2012-12-25 | 2013-06-12 | 北京科技大学 | Field sampling device for filling slurry |
| CN203350064U (en) * | 2013-07-18 | 2013-12-18 | 中交第三航务工程勘察设计院有限公司 | Mucky float sludge collection device |
| CN203479566U (en) * | 2013-09-27 | 2014-03-12 | 浙江省水利河口研究院 | Drift mud sampling device |
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Effective date of registration: 20180823 Address after: 100192 Beijing Haidian District Fang Qing Garden 1 Building 2 unit 501 Co-patentee after: Jinchang embellish for chemical construction limited liability company Patentee after: Han Siyu Co-patentee after: Shaanxi Huajin Mining Co., Ltd. Address before: 100192 Beijing Haidian District Fang Qing Garden 1 Building 2 unit 501 Patentee before: Han Siyu |