CN87209127U - Safety gravity piston sampler - Google Patents
Safety gravity piston sampler Download PDFInfo
- Publication number
- CN87209127U CN87209127U CN 87209127 CN87209127U CN87209127U CN 87209127 U CN87209127 U CN 87209127U CN 87209127 CN87209127 CN 87209127 CN 87209127 U CN87209127 U CN 87209127U CN 87209127 U CN87209127 U CN 87209127U
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- China
- Prior art keywords
- piston
- sampler
- impact damper
- gravity
- gravity piston
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a safety gravity piston sampler, which is an improved design on the base of existing gravity piston samplers. The safety gravity piston sampler adopts the assembly of an air cylinder piston-shaped safety pin and a buffer, efficiently solving the loss accident of the gravity piston sampler because a sampler body suddenly unhooks or a steel cable is broken when picking core in soft-sediment. The safety gravity piston sampler adopts a force positioning piston structure, which enhances sampling rate. The utility model has the advantages of more safety and high sampling rate besides keeping the advantages on the structural properties of the existing gravity piston samplers.
Description
The utility model belongs to what column sampler tool under water.Main with the sampling of what underwater sediment(s).
At present, the employed gravity piston sampler in countries in the world is to rely on deadweight, at its certain distance of dried up end, adopt shot to touch the end, make unbalance fixed high bar out of trim, cause activity to hang and come off and obtain impulse force, cause stopple coupon under momentum effect, to creep in the underwater sediment(s) from hook.Because the sampler piston is subjected to wirerope traction when in stopple coupon, upwards relatively moving, form certain vacuum, thereby the sample core that enters in the stopple coupon is produced swabbing action, stopple coupon from sediment, transfer to and lifting process in, the sample core is maintained the original state substantially, and can prevent coming off of sample core.
The subject matter that such sampling machinery exists can reduce following several aspect:
One, the unhook releasing means that contends with is the critical component of gravity piston sampler, and European and American countries all adopts unbalance fixed high bar releasing means.This apparatus features is, the rapid variation of any input speed and barrier hook bump unbalance fixed high bar, can cause that all the sampler main body breaks off relations, free-falling long-pending can impulsive force quite big.In water, not only can earn disconnected wirerope moment, sometimes also entail dangers to other.
Two, in sampler main body unhook free-falling process, total weight all plays the effect of long-pending energy counterweight.As soft-sediment, after the brill sample was finished, remaining kinetic energy was often earned wirerope disconnected, causes the gravity piston sampler to sink under water.
Three, after the sampler main body breaks off relations, freely fall moment in beginning, the invar cable is kept to by heavy burden and is bordering on zero load.Thereby, the wirerope certain-length that bounces back rapidly.This time piston certain distance that will rise in the stopple coupon, cause sampling rate low, reduced the sampling effect significantly.
The above-mentioned reason of base what, the design improves gravity sampling piston device from three aspects.One, employing cylinder piston type safety pin replaces the safety pin in the former releasing means.After utilizing the entry of cylinder piston type safety pin, the force of compression of what water body to gas in the cylinder depended in the displacement of free-piston in cylinder block, thereby makes the cylinder piston type safety pin produce transversal displacement.The cylinder block of different volumes can be extracted the cylinder piston type safety pin in the water of different depth.Therefore, can guarantee during design that the sampler main body can not break off relations on certain depth of water.
Two, adopt the impact damper assembly structure at sampler main body middle part.When the sampler main body broke off relations, the impact damper assembly still played the effect of long-pending energy counterweight, and after the brill sample was finished, when dump energy, the impact damper shadoof was by stuck piston, and remaining part dashes under continuing, and buffer spring is compressed, and has absorbed portion of energy.Simultaneously, thicker impact damper assembly is splashed into and has then consumed most of dump energy in the sediment.The gravity piston sampler of this band impact damper assembly had both kept the advantage of conventional gravity piston sampler fully, had possessed approximate intelligentized buffer action again.
Three, firmly positioning piston replaces former stopple coupon piston, and the positioning piston of exerting all one's strength does not produce sliding under the rapid retraction force effect of wirerope, has put in place and have only when stopple coupon, and after impulsive force was cut off the power register pin, the power positioning piston just began to go up sliding.Avoid the last in advance cunning of stopple coupon piston and made water-filling in the stopple coupon, caused sampling rate phenomenon low or that get less than sample to take place.
Of the present utility model being constructed as follows:
One, cylinder piston type safety pin:
Form by firm banking, cylinder block and piston type safety pin etc.Be installed on the fixed base plate by firm banking.Piston and safety pin are one, so be called the piston type safety pin.After in putting what water, because of making the piston type safety pin, in cylinder block, moves the pressure in the water, promptly make it to produce transversal displacement,, prevented that the barrier hook from bumping the unbalance sampler main body unhook phenomenon of deciding high bar and causing and taking place with this safety pin as unbalance fixed high bar releasing means.Have only when reaching certain depth of water, produce certain pressure and make the piston type safety pin produce certain transversal displacement, be equivalent to safety pin and extract, the sampler main body just possesses the unhook condition.The safe reliability of releasing means is improved greatly.
Two, impact damper assembly:
Constitute by impact damper shell, buffer spring, impact damper shadoof, impact damper fixed muffle ring and spring retaining sleeve tube etc.
Structurally, buffer spring is placed between impact damper shell and the impact damper shadoof.Impact damper shadoof impact damper shell relatively upwards slides vertically.Buffer spring is placed on the bulge loop of spring retaining sleeve tube bottom.When the impact damper shell descends, and the impact damper shadoof is during by stuck piston, and buffer spring also stops, thereby is cushioned the device shell, and the power of decline is compressed, thereby has absorbed the part dump energy of sampler main body.
The external diameter of impact damper assembly is thicker, consumes most of dump energy in the time of can be in being splashed into sediment.
Shown in figure five, impact damper shell and counterweight lead and stopple coupon continue to descend, and the impact damper shadoof then stops to descend, and its relative impact damper shell protrudes upward, and buffer spring then is compressed.
Three, power positioning piston:
Fix the positioning disc of a band groove in the lower end of piston, two power register pin symmetries are passed two circular holes in the middle part of the drill bit and are inserted in the annular groove of positioning disc, are one with the piston core bar with positioning disc and piston binding.Piston core bar top is wirerope.
The power positioning piston is made up of positioning disc, power register pin, piston and piston core bar etc.
Description of drawings is as follows:
Fig. 1 is a gravity sampling piston device structural drawing.
Fig. 2 is safe gravity piston sampler structure figure.
Fig. 3 is a cylinder piston type safety pin structural drawing.
Fig. 4 is a power positioning piston structural drawing.
Fig. 5 is safe gravity piston sampler underwater sampling and impact damper assembly fundamental diagram.Wherein a figure is desirable position, the sampler working state figure of cutting off of power register pin.B figure is when boring sample and finishing, the sampler constitutional diagram.C figure is an impact damper assembly fundamental diagram.
Wherein, the 1-drill bit, in order to strengthening the top, in order to creeping into, 2-check thigh, bore sample easily adopt into, be difficult for spilling.3-power positioning piston, with piston core bar stationary positioned disk, when the relative power with piston of the downward power of gravity piston sampler main body reached design load, the power register pin was cut off below piston.Continue down towards the time, the power positioning piston is gone up sliding relatively, causes certain vacuum in stopple coupon, in order to entering of sample.The 4-wirerope, in order to hang the gravity piston sampler, it throws in and promotes the gravity piston sampler by cable winch.The 5-connecting flange is used in impact damper shell lower end fixedly stopple coupon.6-counterweight lead is as sampler main body gross weight regulating part.7-spring retaining sleeve tube is fixed in impact damper shadoof lower end with screw thread, and holddown spring also bears spring force.8-impact damper shell is the moving component of impact damper assembly, is fixed as one with guide vane, counterweight lead and stopple coupon.The 9-buffer spring, after sampling was finished, buffer spring was compressed, absorption portion kinetic energy.10-impact damper shadoof, as the load spare of impact damper assembly, sampler main body suspender member.11-impact damper fixed muffle ring, impact damper shadoof, holddown spring are hung by system with what.When sampling, the kinetic energy of impact damper shadoof passes to the impact damper shell.The 12-guide vane, the operate as normal direction of maintenance sampler main body.13-is unbalance to decide high bar, when shot drops to the seabed, is deposited thing and holds up, and under the prerequisite that the cylinder piston type safety pin is extracted, the sampler main body is broken off relations, beginning free fall in water.14-wirerope clamping plate are hung on sampler main body folder on the certain altitude, reserve sampler subject freedom length of stroke, and the sampler main body is hung on the unbalance galianconism hook of deciding bar.15-cylinder piston type safety pin is installed on the fixed base plate by firm banking with screw, uses spiral marking connection between cylinder block and firm banking.After the sampler main body had been assembled, screwing on was fit to the cylinder piston type safety pin of this depth of water, and pin can lift by crane input after going into pin-and-hole.The 16-coupling ring is used to hang gravity piston sampler main body, and promptly it is the sampler main body with the lower part.The 17-shot is hung on unbalance fixed high bar outer end with iron chains.18-stopple coupon piston is with stopple coupon and is slidingly matched.The 19-push rod.The 20-positioning disc after the power on it of acting on reaches certain value, cuts off register pin automatically.21-power register pin, the threaded right cylinder of an end.20,21,29 and 30 constitute power positioning piston 3.The 22-stopple coupon is used to adopt the dress sample, and this accompanying drawing is the single-unit stopple coupon, can dress up more piece according to degree of depth needs.The 23-firm banking is in order to the fixed air cylinder body.The 24-cylinder block.25-piston type safety pin, 23,24,25 constitute cylinder piston type safety pin 15.The 26-fixed base plate is in order to install and fix base 23 and unbalance fixed high bar 13.27-impact damper assembly constitutes by 7,8,9,10,11 etc.
Claims (4)
1, a kind of safe gravity piston sampler, be made of drill bit [1], check thigh [2], wirerope [4], counterweight lead [6], guide vane [12], unbalance fixed high bar [13], wirerope clamping plate [14] coupling rings [16], fixed base plate [26], shot [17], stopple coupon piston [18], push rod [19] and stopple coupon [22], its feature has been installed cylinder piston type safety pin [15], impact damper assembly [27] and power positioning piston [3] at what on safety gravity piston sampler.
2, by the described safe gravity piston sampler of claim 1, its feature is made of firm banking (23), cylinder block (24) and piston type safety pin (25) at what cylinder piston type safety pin (15).
3, by the described safe gravity piston sampler of claim 1, its feature is made of impact damper shell (8), buffer spring (9), impact damper shadoof (10), impact damper fixed muffle ring (11) and spring retaining sleeve tube (7) at what impact damper assembly (27).
4, by the described safe gravity piston sampler of claim 1, its feature is made up of positioning disc (20), power register pin (21), piston (29) and piston core bar (30) at what power positioning piston (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87209127 CN87209127U (en) | 1987-06-11 | 1987-06-11 | Safety gravity piston sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87209127 CN87209127U (en) | 1987-06-11 | 1987-06-11 | Safety gravity piston sampler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87209127U true CN87209127U (en) | 1988-02-17 |
Family
ID=4824278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87209127 Withdrawn CN87209127U (en) | 1987-06-11 | 1987-06-11 | Safety gravity piston sampler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87209127U (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102914454A (en) * | 2012-11-15 | 2013-02-06 | 化学工业岩土工程有限公司 | Drilling water taking device and water taking method |
| WO2013159381A1 (en) * | 2012-04-27 | 2013-10-31 | 深圳市华星光电技术有限公司 | Shear pin |
| CN103448891A (en) * | 2013-08-12 | 2013-12-18 | 湖南科技大学 | Cable clamping releasing device |
| CN104076397A (en) * | 2014-05-08 | 2014-10-01 | 珠海市泰德企业有限公司 | Throwing-in device of sea seismograph |
| CN104236952A (en) * | 2014-09-03 | 2014-12-24 | 清华大学 | Drilling type riverbed sediment sampling device |
| CN104358817A (en) * | 2014-10-27 | 2015-02-18 | 章胜亮 | Deep sea sampling vibration absorber capable of preventing false triggering |
| CN105067375A (en) * | 2014-12-17 | 2015-11-18 | 北京市水科学技术研究院 | Sediment sampler |
| CN105424406A (en) * | 2015-12-15 | 2016-03-23 | 武汉浩瀚机电设备有限公司 | Visible double-row columnar sampler for deep-sea sampling |
| CN105571898A (en) * | 2016-01-28 | 2016-05-11 | 浙江省海洋水产研究所 | Seabed water sample depth-setting sampler |
| CN104236952B (en) * | 2014-09-03 | 2017-01-04 | 清华大学 | A kind of drilling type channel aggradation thing sampling apparatus |
| CN106353146A (en) * | 2015-07-16 | 2017-01-25 | 中国石油化工股份有限公司 | Sampling instrument |
| CN108221908A (en) * | 2018-03-05 | 2018-06-29 | 浙江大学 | The device vertically sampled for ballastless track of high-speed railway subgrade soils |
-
1987
- 1987-06-11 CN CN 87209127 patent/CN87209127U/en not_active Withdrawn
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013159381A1 (en) * | 2012-04-27 | 2013-10-31 | 深圳市华星光电技术有限公司 | Shear pin |
| CN102914454A (en) * | 2012-11-15 | 2013-02-06 | 化学工业岩土工程有限公司 | Drilling water taking device and water taking method |
| CN103448891A (en) * | 2013-08-12 | 2013-12-18 | 湖南科技大学 | Cable clamping releasing device |
| CN103448891B (en) * | 2013-08-12 | 2015-10-21 | 湖南科技大学 | A kind of folder cable release gear |
| CN104076397A (en) * | 2014-05-08 | 2014-10-01 | 珠海市泰德企业有限公司 | Throwing-in device of sea seismograph |
| CN104236952A (en) * | 2014-09-03 | 2014-12-24 | 清华大学 | Drilling type riverbed sediment sampling device |
| CN104236952B (en) * | 2014-09-03 | 2017-01-04 | 清华大学 | A kind of drilling type channel aggradation thing sampling apparatus |
| CN104358817A (en) * | 2014-10-27 | 2015-02-18 | 章胜亮 | Deep sea sampling vibration absorber capable of preventing false triggering |
| CN105067375A (en) * | 2014-12-17 | 2015-11-18 | 北京市水科学技术研究院 | Sediment sampler |
| CN106353146A (en) * | 2015-07-16 | 2017-01-25 | 中国石油化工股份有限公司 | Sampling instrument |
| CN106353146B (en) * | 2015-07-16 | 2020-02-14 | 中国石油化工股份有限公司 | Sampling instrument |
| CN105424406A (en) * | 2015-12-15 | 2016-03-23 | 武汉浩瀚机电设备有限公司 | Visible double-row columnar sampler for deep-sea sampling |
| CN105571898B (en) * | 2016-01-28 | 2018-02-13 | 浙江省海洋水产研究所 | Seabed water sample depth sampler |
| CN105571898A (en) * | 2016-01-28 | 2016-05-11 | 浙江省海洋水产研究所 | Seabed water sample depth-setting sampler |
| CN108221908A (en) * | 2018-03-05 | 2018-06-29 | 浙江大学 | The device vertically sampled for ballastless track of high-speed railway subgrade soils |
| CN108221908B (en) * | 2018-03-05 | 2023-06-13 | 浙江大学 | Device for vertically sampling foundation soil of ballastless track of high-speed railway |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |