CN201413250Y - Hydraulic piston sampling tool - Google Patents
Hydraulic piston sampling tool Download PDFInfo
- Publication number
- CN201413250Y CN201413250Y CN2009201589094U CN200920158909U CN201413250Y CN 201413250 Y CN201413250 Y CN 201413250Y CN 2009201589094 U CN2009201589094 U CN 2009201589094U CN 200920158909 U CN200920158909 U CN 200920158909U CN 201413250 Y CN201413250 Y CN 201413250Y
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- CN
- China
- Prior art keywords
- pipe
- ball
- outer tube
- piston
- positioning
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a hydraulic piston sampling tool. An upper joint is connected with a positioning pipe and the upper end of an outer pipe through screw threads. The lower end of the outerpipe is connected with an outer drill bit or a water conveying cover of the outer pipe. An inner pipe and the positioning pipe are arranged in the outer pipe. An inner pipe joint is equipped on the upper side of the inner pipe. An upper piston is arranged in the outer pipe on the upper side of the inner pipe joint. The upper piston slides up and down in a sealing way along the inner wall of the outer pipe and the positioning pipe. The upper joint is provided with a water inlet which is equipped with a shunt valve. The shunt valve controls the water inlet to be communicated with the positioningpipe or the outer pipe. The positioning pipe under the upper piston is provided with a ball clamping positioning mechanism. The inner pipe joint is arranged on the ball clamping positioning mechanism. The inner pipe joint and the inner pipe are connected. A lower piston is installed and connected on the lower end of the positioning pipe. The utility model can greatly simplify the piston samplingoperation, ensures the core ratio, the original state property and the original position property, and has the advantage of convenience and swiftness.
Description
Technical field
The utility model relates to a kind of waters Sampling driller, is mainly to be engaged in river, river, lake, mooring basin district and to carry out geological sampling, geochemical exploration sampling, environmental sampling person, and a kind of light, sampling instrument fast is provided.
Background technology
In geochemical exploration sampling and environmental sampling field, sampling quality is had relatively high expectations, and for this reason, sampling instrument has been proposed specific (special) requirements.Because water-bed layer sample is soft mostly, traditional sampling instrument and sampling method are difficult to obtain enough, undisturbed original state sample.The pot type piston drilling tool is operated cumbersome owing to there is the core bar location; In addition, grown easy bending on the face of land by rig pressurization drilling rod even accident such as occur fractureing.
The utility model content
The utility model has overcome above-mentioned shortcoming, and providing a kind of can effectively simplify procedures, and improves sampling efficiency, reduces accident under the hole, satisfies the hydraulic piston sampling facility of geochemical exploration sampling and environmental sampling.
The technical scheme in the invention for solving the technical problem is: a kind of hydraulic piston sampling facility, it comprises top connection, outer tube, interior pipe and positioning pipe, described top connection is connected with the outer tube upper end with positioning pipe by screw thread, the outer tube lower end send the water cover to be connected with outer drill bit or outer tube, pipe and positioning pipe are arranged in the described outer tube in described, the side is provided with inner pipe joint on inner pipe, in the outer tube on inner pipe joint top, be provided with upper piston, described upper piston slides along outer tube wall and positioning pipe upper-lower seal, in described top connection, be provided with water inlet, be provided with shunt valve in the described water inlet, described top connection is connected with the shunt valve lower end, described shunt valve control water inlet is communicated with positioning pipe or is communicated with outer tube, positioning pipe under the described upper piston is provided with ball fastening position mechanism, described inner pipe joint is arranged in the mechanism of ball fastening position, its position is by the ball card lock, described inner pipe joint is connected with interior pipe, installation is connected with lower piston in described positioning pipe lower end, has the through hole that positioning pipe is communicated with interior pipe on the positioning pipe above the described lower piston.
Described hydraulic piston sampling facility, described ball fastening position mechanism comprises ball card, ball deck, ball card spring and spring base composition, and described ball card is embedded in the ball deck, and ball deck bottom is supported by ball card spring, and spring base connects with inner pipe joint with screw thread.
Described hydraulic piston sampling facility, described shunt valve comprises valve body, is provided with valve ball in the valve body top, have valve spring at valve body, described valve spring is connected with the positioning pipe upper end, has two side water pipes in described top connection, and described side water pipe is communicated with valve body and outer tube.
Described hydraulic piston sampling facility have drainage gallery in the outer tube wall bottom.
Described hydraulic piston sampling facility, described nipple and interior pipe are by screwed connection, and positioning pipe and lower piston are by screwed connection.
The utility model has compared with prior art been cancelled loaded down with trivial details core bar structure, becomes machinery and is pressurised into hydraulic pressurization; Contrary hold principle with the ball clip, holding force belongs to the normally closed type mechanism of spring chucking hydraulic unlock type, and accurate positioning pulls out the drilling tool sample to be not easy to come off; Characteristics such as inside and outside drill bit structure can be changed as required, can simplify the sampling piston operation greatly, in the core-taking rate, original state and the original position that guarantee institute's sample thief, has conveniently, and is quick.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the bottom synoptic diagram of other user mode of the present utility model.
Embodiment
As shown in Figure 1, 2, top connection 1 inner chamber is provided with shunt valve 3, and shunt valve 3 tops are branch water pitchings 2, and bottom is a valve spring 4; Top connection 1 all connects with screw thread with outer tube 7, backstay 5; Upper piston 8 can slide up and down along outer tube 7 inwalls and backstay 5; Inner pipe joint 9 is suspended on the ball deck 11, and its position is by 10 lockings of ball card; Ball card 10 is embedded in the ball deck 11, and ball deck bottom is supported by ball card spring 12, and spring base 13 usefulness screw threads and inner pipe joint 9 connect.Ball card 10, ball deck 11, ball card spring 12, spring base 13 are formed ball fastening position mechanism; Interior pipe 14 all connects with screw thread and inner pipe joint 9, interior drill bit 17; Lower piston 18 usefulness screw threads are bound up on the bottom of backstay 5, and can slide in interior pipe; According to soil property hardness needs, the available screwed connection of interior pipe is applicable to the interior drill bit 17 in soft soil or is applicable to the interior drill bit 20 in hard soil that outer tube can connect outer drill bit 15 as required, can connect outer tube and send water cover 19 when not connecting external drill bit.
Operating process:
Install drilling tool by figure; beginning to creep into time-division water pitching 2 does not throw in; open pumps water; the rotary drilling water route is arrived at the bottom of the hole down through shunt valve 3, backstay 5, interior pipe 14, interior pipe and outer tube 7 annular gaps; up to getting into predetermined hole depth termination of pumping, shutdown; stop to creep into, this process backstay 5 plays the effect of location and logical mud.Drop into afterwards and divide water pitching 2, rotary drilling bits is not opened pumps water, under hydraulic action, divide water pitching, shunt valve compression spring 4 to make the side in the top connection 1 divide aquaporin to open, water under high pressure enters the upper piston top, and it is descending to promote upper piston, forces ball card 10 to unclamp, descending being pressed in the soil of pipe, backstay 5 motionless playing the role of positioning at this moment in making;
Drainage gallery 21 is offered in outer tube 7 inwalls bottom, plays and creeps into the effect of notifying that ends, and promptly when water-aspirator pressure reduces suddenly, shows that drilling tool has been pressed onto the position, and termination of pumping is carried brill, cored then.
The utility model has solved the pot type piston drilling tool, operates cumbersome and in accidents such as pressurization drilling rod in the face of land are crooked easily even occur fractureing, has designed the hydraulic piston drilling tool.The outstanding advantage of this drilling tool is the inner core bar of cancellation drilling rod, becomes machinery and is pressurised into hydraulic pressurization, has simplified running program effectively, has improved sampling efficiency, has reduced under the hole advantages such as accident.Satisfied the requirement of geochemical exploration sampling and environmental sampling preferably to sample.
More than be preferred embodiment of the present utility model, all changes of doing according to technical solutions of the utility model when the function that is produced does not exceed the scope of technical solutions of the utility model, all belong to protection domain of the present utility model.
Claims (5)
1. hydraulic piston sampling facility, it is characterized in that: it comprises top connection, outer tube, interior pipe and positioning pipe, described top connection is connected with the outer tube upper end with positioning pipe by screw thread, the outer tube lower end send the water cover to be connected with outer drill bit or outer tube, pipe and positioning pipe are arranged in the described outer tube in described, the side is provided with inner pipe joint on inner pipe, in the outer tube on inner pipe joint top, be provided with upper piston, described upper piston slides along outer tube wall and positioning pipe upper-lower seal, in described top connection, be provided with water inlet, be provided with shunt valve in the described water inlet, described top connection is connected with the shunt valve lower end, described shunt valve control water inlet is communicated with positioning pipe or is communicated with outer tube, and the positioning pipe under the described upper piston is provided with ball fastening position mechanism, and described inner pipe joint is arranged in the mechanism of ball fastening position, its position is by the ball card lock, described inner pipe joint is connected with interior pipe, installs in described positioning pipe lower end and is connected with lower piston, has the through hole that positioning pipe is communicated with interior pipe on the positioning pipe above the described lower piston.
2, hydraulic piston sampling facility according to claim 1, it is characterized in that: described ball fastening position mechanism comprises ball card, ball deck, ball card spring and spring base composition, described ball card is embedded in the ball deck, ball deck bottom is supported by ball card spring, and spring base connects with inner pipe joint with screw thread.
3, hydraulic piston sampling facility according to claim 1, it is characterized in that: described shunt valve comprises valve body, be provided with valve ball in the valve body top, have valve spring at valve body, described valve spring is connected with the positioning pipe upper end, have two side water pipes in described top connection, described side water pipe is communicated with valve body and outer tube.
4, hydraulic piston sampling facility according to claim 1 is characterized in that: have drainage gallery in the outer tube wall bottom.
5, hydraulic piston sampling facility according to claim 1, it is characterized in that: described nipple and interior pipe are by screwed connection, and positioning pipe and lower piston are by screwed connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201589094U CN201413250Y (en) | 2009-06-11 | 2009-06-11 | Hydraulic piston sampling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201589094U CN201413250Y (en) | 2009-06-11 | 2009-06-11 | Hydraulic piston sampling tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201413250Y true CN201413250Y (en) | 2010-02-24 |
Family
ID=41715133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201589094U Expired - Fee Related CN201413250Y (en) | 2009-06-11 | 2009-06-11 | Hydraulic piston sampling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201413250Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102418520A (en) * | 2011-12-31 | 2012-04-18 | 中国地质大学（北京） | Water-locking type unconsolidated formation sampling drilling tool |
| CN105672925A (en) * | 2016-02-02 | 2016-06-15 | 中煤科工集团西安研究院有限公司 | Sealed sampling device for gas sample |
| CN105973642A (en) * | 2016-07-11 | 2016-09-28 | 河海大学 | Rice field percolate extraction device |
-
2009
- 2009-06-11 CN CN2009201589094U patent/CN201413250Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102418520A (en) * | 2011-12-31 | 2012-04-18 | 中国地质大学（北京） | Water-locking type unconsolidated formation sampling drilling tool |
| CN102418520B (en) * | 2011-12-31 | 2014-04-02 | 中国地质大学（北京） | Water-locking type unconsolidated formation sampling drilling tool |
| CN105672925A (en) * | 2016-02-02 | 2016-06-15 | 中煤科工集团西安研究院有限公司 | Sealed sampling device for gas sample |
| CN105672925B (en) * | 2016-02-02 | 2018-07-13 | 中煤科工集团西安研究院有限公司 | Gas sample closed sampling device |
| CN105973642A (en) * | 2016-07-11 | 2016-09-28 | 河海大学 | Rice field percolate extraction device |
| CN105973642B (en) * | 2016-07-11 | 2018-09-25 | 河海大学 | A kind of rice field percolate extraction element |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100224 Termination date: 20110611 |