CN2232072Y - Rotary plunging undisturbed core extractor - Google Patents
Rotary plunging undisturbed core extractor Download PDFInfo
- Publication number
- CN2232072Y CN2232072Y CN 95236115 CN95236115U CN2232072Y CN 2232072 Y CN2232072 Y CN 2232072Y CN 95236115 CN95236115 CN 95236115 CN 95236115 U CN95236115 U CN 95236115U CN 2232072 Y CN2232072 Y CN 2232072Y
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- CN
- China
- Prior art keywords
- outer tube
- sand
- hollow shaft
- box
- spring
- 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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- Sampling And Sample Adjustment (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model relates to a novel rotary pressing in original state sand taking device. The utility model is characterized in that the utility model is provided with an outer tube rotary sliding and cutting mechanism which is composed of a drill rod joint (1), a bearing spring box (4), the tube joint (5), the outer tube (18) and a spiral rib drill bit (24), and the lower end is provided with an implicit sample protecting mechanism; the inner side of the outer tube rotary mechanism is also provided with an inner tube independent sliding and advance pressing in mechanism which can slide and is composed of a bearing (10), a lock nut (8), a spring (7), a hollow shaft (14), a remaining earth box (17), a half box tube (20) and a tube boot 22. The inner part of a hollow shaft (14) is also provided with a flushing liquid flow diverging and isolating mechanism which is formed by big and small steel balls (15, 16), the sand taking device is used for investigation of geotechnical engineering, and the success ratio of taking undisturbed sand sample can reach 100 percent.
Description
The utility model relates to the instrument that is used for taking original state structures such as fat clay, silt, flour sand, fine sand, medium coarse sand in the geotechnical investigation.
The existing instrument that is used for taking above-mentioned sand sample original state structure, particularly there are the following problems greater than after the 20m in hole depth:
When (1) adopting the instrument of static pressure method sampling, more closely knit when layer of sand, the perhaps drill hole sampling degree of depth just is difficult to get the sand sample of requested number during greater than 20m.Because the no hole cleaning machine structure of this class instrument itself, a large amount of sediments can not be removed at the bottom of the hole.For example, this class instrument has Mengjin MNS1, MNS2, MNS3 type, Fuyang FH-74 type, φ 89 type sand extractors etc.This class instrument does not also have the model machine of protecting structure, so the sampling success rate is very low.
When (2) adopting the rotary plunging type sampling instrument, this instrument does not all design and protects the model machine structure, has only the termination of pumping drilled dry " to burn to death " in order to take a sample, and is extremely low to layer of sand sampling success rate, and destroyed sand sample original state structure in the drilled dry process.Though some instrument has designed and exposed pawl spring and protect the model machine structure, sand sample is by the reed disturbance.At present all sampling instruments all do not have the hole cleaning machine structure, and a large amount of sediments of sampling section top board can't remove, and sand sample is seriously obscured.Also have the design of many instruments not consider the optimization of drill bit structure hydraulics, cause in the shoe sand sample by the mud slurry stream wash away, disturbance and pollution.The instrument that also has is joined garden cylindricality sample box, and this instrument produces very big disturbance when withdrawing from sand sample.As SD-S sand extractor, φ 110 automatically leading boots samplers, the two-tube original state sand extractor of φ 89 type single actions etc., be exactly this class sand extractor.
The purpose of this utility model, be to overcome and get the existing the problems referred to above of original state sand sample in the present sampling instrument, reach 100% to reach the success rate that can in deep formation, obtain the original state sand sample, can be applicable to the instrument of getting the original state sand sample in the loose or dense sand stratum of shallow-layer again.
For achieving the above object, the utility model has designed one and has outer tube revolution transfer torque and have the mechanism of sliding with cutting concurrently.This mechanism is connected to a union 5 in the upper end of outer tube 18, the boss that the inner tubal wall of these union 5 other ends has in chute and the carriage spring box 4 is slidingly matched, the outer tube wall of union a place be connected in tool joint 1 on anti-cover 3 lower port contact or separate; Being connected to a spiral ribs bone drill head 24 in the lower end of outer tube 18 constitutes; In this in-house bottom one implicit expression is housed also and protects the model machine structure.
Also being equipped with one in above-mentioned outer tube slew gear can slide and leading pressing mechanism along the interior pipe single action of carriage spring box 4 upper and lower slips.This mechanism be the shaft shoulder place of a hollow shaft 14 be contained in tool joint 1 on carriage spring box 4 in bearing 10, lining 9 match, and, also adorn with spring 7 and bearing gland 11 with locking nut 8 lockings; Be connected to surplus native box 17, half box pipe 20 and shoe 22 successively constitutes in the lower end of hollow shaft 14; One flushing liquor shunting, the interrupter that is made of large and small steel ball 15,16 also is housed in this hollow shaft.
The utlity model has following advantage:
Since spring case both with outer sliding tube movingly, be slidingly matched with unsteady hollow shaft again, the reciprocal interlocking that has constituted two novelties is independently outer sliding tube actuation mechanism and interior pipe slide mechanism separately again.Interior slide mechanism assurance shoe is cut layer of sand in advance, can isolate washing away and polluting of slurry, also can regulate leading amount with the layer of sand compaction rate.The outer sliding tube actuation mechanism can be used to holder and protects sand sample, reaches 100% to guarantee the sampling success rate.
2. the flushing liquor shunting interrupter that has the big small ball formation that is skillfully constructed.Small ball cooperates with the plasma discharge hole can isolate the pressure of mud column to sand sample, gets rid of sand sample top board mud.Big steel ball cooperates with tap hole can shunt mud, stops small ball offside.The sediment thing was rinsed totally at the bottom of the mechanism that this big small ball constitutes can guarantee cutting ring part hole.
3. half box pipe in the interior pipe single action slide mechanism, when cutting ring can be avoided moving back sample to the disturbance of original state sand sample, half box pipe is surrounded by dirt proof sleeve outward, in the time of can preventing effectively that mud from infiltrating half box pipe seam, to the pollution of original state sample.
4. in the spiral ribs bone drill head of multi-functional revolution cutting, since the structure of drill bit make two-tube single action drilling tool ring-shape mud stream from the mouth of a river, drill bit tank and the shunting of end spray orifice, flow out between the hole after the reaming of spiral rib, greatly reduce pump pressure, mud is also reduced greatly to the souring of shoe outer shroud layer of sand.
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is that the utility model is along center line complete section generalized section.
Fig. 2 is the complete section generalized section along Figure 1A-A line.
In Fig. 1, the sealing ring 6 of carriage spring box 4; The sealing ring 12,13 of bearing gland 11; Spacing ring 21 is adopted in the location of half box pipe 20; The lower end of spiral ribs bone drill head 24 has end spray orifice 26, tank 27; The dirt proof sleeve 28 of half box pipe, 20 outsourcings; On hollow shaft 14, have plasma discharge hole 29, tap hole 30.
Existing three kinds of duties that are described as follows according to Fig. 1, Fig. 2:
1. when drilling tool is in the lifting state, promptly when 0.5m at the bottom of the hand-hole under the drilling tool-1m, the outer tube slew gear that is made of union 5, outer tube 18 and spiral ribs bone drill head 24 will glide along the boss that is connected on the carriage spring box 4 in the tool joint 1, the lower surface of the spacing ring 2 that is contained in union 5 tops is contacted with carriage spring box 4 upper surfaces, the outer tube wall of union 5 separates with the lower port of anti-cover 3 at a place simultaneously, this moment hollow shaft 14 and shoe 22 certain distance that internally contracts mutually, 6 rubber-like garden arc pawl spring sheets 25 that implicit expression is protected on the model machine structure close up to the center.
2. at the bottom of the cleaning hole during sediment state, under drilling tool at the bottom of the hand-hole before, do not throw big small ball earlier, switch on the pump and in drilling rod, be pressed into mud, most of mud passes to shoe 22 from the centre bore of hollow shaft 14 and flows out and fling sediment at the bottom of the hole.Meanwhile, slowly revolution is slided and drilling tool is also transferred by the mechanism of cutting, treats to stop water pump after spiral ribs bone drill head 24 touches at the bottom of the hole that is washed down.After this drilling rod that slowly descends, then in the pipe single action slide and leading pressing mechanism makes shoe 22 be pressed into the sampling layer of sand under spring 7 elastic force effects, simultaneously, shoe has forced pawl spring sheet 25 to be separated by the center.At this moment, it is different with the density difference of layer of sand that shoe 22 exposes spiral ribs bone drill head 24 length outward.
3. during the drive sampling state, the order big by earlier little back drops into steel ball 16,15, starts rig and water pump then and makes drilling rod drive tool joint 1 and outer tube revolution to slide and creep into the mechanism of cutting and pressurize, behind the depth selection that gets into regulation, stop boring, shutting down.Carry drilling rod 100mm again, at this moment, pawl spring sheet 25 draws in to the center and holds sand sample.Continue to carry and be drilled into the aperture, unload sand extractor then and obtain the original state sand sample.
The utility model can be made in general manufacturer of machine factory.Must heat-treat shoe, adopt the high-frequency fire, be HRC35-40 to guarantee hardness; Thick 0.2～the 0.25mm of cutting ring chromium plating; The bearing that is adopted, sealing ring, locknut, steel ball, spring etc. are the national standard part.
Claims (5)
1. the forced original state sand extractor of novel rotation mainly is made up of tool joint, outer tube, drill bit, bearing, spring, cutting ring, half box pipe, shoe, it is characterized in that:
A. have outer tube revolution transfer torque and have the mechanism of sliding concurrently with cutting, this mechanism is connected to a union (5) in the upper end of outer tube (18), the inner tubal wall of this union (5) other end a place be connected in tool joint (1) on anti-cover (3) lower port contact or separate; Be connected to a spiral ribs bone drill head (24) constitutes in the lower end of outer tube (18); In this mechanism bottom one implicit expression is housed also and protects the model machine structure;
B. being equipped with one in above-mentioned outer tube slew gear can slide and leading pressing mechanism along the interior pipe single action that carriage spring box (4) slide up and down, this mechanism be on a hollow shaft (14) axle fan place be contained in tool joint (1) on carriage spring box (4) in bearing (10), lining (9) match, and, also adorn with spring (7) and bearing gland (11) with locking nut (8) locking; Be connected to surplus native box (17), half box pipe (20) and shoe (22) successively constitutes in the lower end of hollow shaft (14); In this hollow shaft (14), also be provided with flushing liquor shunting, an interrupter by big small ball (15,16) formation.
2. sand extractor as claimed in claim 1, the inner tubal wall that it is characterized in that described union (5) has chute, this chute cooperates with the boss of carriage spring box (4), its outer tube (18) is slided with union (5), be the distance of limit slippage, spacing ring (2) be housed on union (5) top.
3. sand extractor as claimed in claim 1 is characterized in that it is to constitute by being inverted pawl spring seat (23) and 6 rubber-like garden arc pawl spring sheets (25) that described implicit expression is protected the model machine structure, and this mechanism is contained on the inner tubal wall of spiral ribs bone drill head (24), in order to hold sand sample.
Such as claim 1 the sand extractor of art, it is characterized in that the shunting of described flushing liquor, interrupter are to throw in small ball (16) and big steel ball (15) in the central siphon in hollow shaft (14), on the central siphon between two steel balls, have plasma discharge hole (28), in the certain distance that big steel ball is gone up slightly, have tap hole (30).
5. sand extractor as claimed in claim 1 is characterized in that in the described half box pipe (20) 6 cutting rings (19) being housed, and is surrounded by dirt proof sleeve (28) outside half box pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95236115 CN2232072Y (en) | 1995-01-14 | 1995-01-14 | Rotary plunging undisturbed core extractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95236115 CN2232072Y (en) | 1995-01-14 | 1995-01-14 | Rotary plunging undisturbed core extractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2232072Y true CN2232072Y (en) | 1996-07-31 |
Family
ID=33879202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95236115 Expired - Fee Related CN2232072Y (en) | 1995-01-14 | 1995-01-14 | Rotary plunging undisturbed core extractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2232072Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265219B (en) * | 2014-09-19 | 2016-10-19 | 中国矿业大学 | A kind of core original state structure recognition means and method |
| CN108868677A (en) * | 2018-08-13 | 2018-11-23 | 四川大学 | A kind of core drilling rig and dental drill interlocking mechanism |
| CN110374511A (en) * | 2019-07-11 | 2019-10-25 | 中电建路桥集团有限公司 | A kind of boring and coring drilling rod |
| CN114166562A (en) * | 2021-12-16 | 2022-03-11 | 中国铁路设计集团有限公司 | Triple-pipe single-dynamic-pressure compensation type rotary soil sampler and soil sampling method |
-
1995
- 1995-01-14 CN CN 95236115 patent/CN2232072Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265219B (en) * | 2014-09-19 | 2016-10-19 | 中国矿业大学 | A kind of core original state structure recognition means and method |
| CN108868677A (en) * | 2018-08-13 | 2018-11-23 | 四川大学 | A kind of core drilling rig and dental drill interlocking mechanism |
| CN108868677B (en) * | 2018-08-13 | 2024-01-26 | 四川大学 | Interlocking mechanism for core drilling machine and dental drill |
| CN110374511A (en) * | 2019-07-11 | 2019-10-25 | 中电建路桥集团有限公司 | A kind of boring and coring drilling rod |
| CN114166562A (en) * | 2021-12-16 | 2022-03-11 | 中国铁路设计集团有限公司 | Triple-pipe single-dynamic-pressure compensation type rotary soil sampler and soil sampling method |
| CN114166562B (en) * | 2021-12-16 | 2024-01-26 | 中国铁路设计集团有限公司 | Triple-pipe single-acting pressure compensation type rotary soil sampler and soil sampling method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |