CN100348965C - Sampler for water-gas mixture and underwater planktonic microorganism - Google Patents

Sampler for water-gas mixture and underwater planktonic microorganism Download PDF

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Publication number
CN100348965C
CN100348965C CNB2004100504828A CN200410050482A CN100348965C CN 100348965 C CN100348965 C CN 100348965C CN B2004100504828 A CNB2004100504828 A CN B2004100504828A CN 200410050482 A CN200410050482 A CN 200410050482A CN 100348965 C CN100348965 C CN 100348965C
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China
Prior art keywords
rotating disk
pedestal
tank
transposer
hold
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CN1752732A (en
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张银亮
胡克
燕奎臣
王棣棠
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Shenyang Institute of Automation of CAS
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Shenyang Institute of Automation of CAS
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Abstract

The invention discloses a sampler for water-gas mixture and underwater planktonic microorganism, which comprises a transposition device, an opening and closing device and a storage tank, wherein the transposition device and the opening and closing device are respectively installed with a carrier into a whole, and the storage tank is embedded in the transposition device and below the opening and closing device. The invention relates to an underwater sampling tool capable of sampling underwater water-gas mixture, hydrothermal sulfide, microsuspension, underwater planktonic microorganism and sediment.

Description

Air-water mixture reaches plankton sampling thief under water
Technical field
The present invention relates to the underwater sampling instrument, specifically a kind of air-water mixture of deep sea mineral resources and living resources investigation, deep-marine-environment monitoring and polar region exploration etc. that is applicable to reaches plankton sampling thief under water.
Background technology
The sampling mechanism of sampling thief is broadly divided into three classes under water: a class is to rely on the gravity of sampling thief to pour the underwater sediment(s) layer.Pour in the process of sediment layer at sampling thief, the hydrate in the sampling thief chamber is compressed, and hydrate flows out from the blowdown valve of sampling thief.When cavity pressure was lower than the threshold value of blowdown valve, blowdown valve cut out.Mention sampling thief, sediment glides in the sampling thief, and sampling thief vacuum tightness occurs in the chamber.Utilize this vacuum tightness to hold sediment layer and part air-water mixture.
These class methods are simple in structure, easy operating.Weak point is that the sampling environment is caused big disturbance, influences double sampling; The pressure of institute's sample thief is less than the pressure of sample space.When sampling thief floated, sample was subject to the external environment influence, can not take a sample selectively simultaneously; Sample will be carried by other heat-insulation pressure keeping container; In addition, this operational method that is thrown into formula is difficult to same sampled point is carried out repeated sampling.
Another kind of is that uncovered sampling thief is inserted the sample space, and with the uncovered sealing of sampling thief, air-water mixture just is sealed in the sampling thief then.When this type of operating environment reached certain depth, uncovered closed performance was relatively poor.
The 3rd class is with pump the valve of sampling thief to be inhaled to open, and makes sample be inhaled into sampling thief.This class sampling thief is when repeatedly sampling, and by the displacement of chain realization sample, valve is relatively large in the opening process consumes energy, and chain beating in rotation process can not guarantee that sampling thief accurately is shifted.
Summary of the invention
The invention provides a kind of quality that can guarantee sample, not disturbance sample to be collected environment, can carry out the air-water mixture of repeated sampling and plankton sampling thief under water to same sampled point.
Technical solution of the present invention is as follows:
Be made up of transposer, headstock gear, hold-up tank three parts, wherein transposer, headstock gear are installed as one with carrier respectively, and hold-up tank is embedded in transposer inside, in the headstock gear below; Wherein:
Hold-up tank is made up of retaining valve, cover, tank body, and described cover is provided with two matrix through holes, and retaining valve is installed in the matrix through hole below of cover, and places in the tank body; Cover and tank body are structure as a whole; Tank body is installed in the rotating disk of transposer by the boss of its sidewall, and is positioned at the below of headstock gear positioning body;
Transposer comprises the oil-filled code-disc of electromagnetism, transposer pedestal, rotating disk loam cake, rotating disk, rotating disk driven wheel, reductor, bearing in reduction gears, deceleration arbor, code-disc pedestal; The oil-filled code-disc of described electromagnetism is installed in the top of code-disc pedestal, and its central shaft that passes code-disc pedestal and transposer pedestal is connected, and code-disc pedestal and rotating disk loam cake link into an integrated entity; The rotating disk that the rotating disk loam cake is housed is provided with a plurality of holes that are used to place hold-up tank, rotating disk places on the shaft shoulder of transposer pedestal by turntable bearing, the deceleration arbor of reductor is installed between transposer pedestal and the reductor support by bearing in reduction gears, and the rotating disk driven wheel is installed on the deceleration arbor and with rotating disk and meshes; The transposer pedestal is fixed on the carrier; The nipple support that the edge of described transposer pedestal makes progress partly places the rotating disk below;
Headstock gear is made up of suction pipe, extension spring, cam, positioning body, vane pump, headstock gear pedestal, submersible machine, gear, shaft joint, transmission shaft, top, headstock gear guide pole, and described headstock gear pedestal is fixed on the carrier; Submersible machine is fastened on the below of headstock gear pedestal, and on the transmission shaft that submersible machine links to each other driving gear is installed, follower gear and driving gear engagement, and be connected with cam; Cam contacts with the upper surface of positioning body; Suction pipe support bar and positioning body are fixed with one; Sampling pipette passes positioning body respectively with an end of power suction pipe and is connected with the top; The other end of power suction pipe is connected with vane pump; The other end of sampling pipette places gets vt space; Shaft joint is installed on the transmission shaft; The crossbeam that the headstock gear guide pole passes headstock gear pedestal bottom is installed on the positioning body, and positioning body is hung on headstock gear pedestal below by extension spring.
The upper surface indent of described cover matrix through hole, the lower surface of matrix through hole are the conical surface; Described retaining valve is made up of retaining valve bead, valve body, pretightning force set screw, one-way valve spring, and the retaining valve bead is installed between cover and the valve body by the pretightning force set screw, and contacts with the conical surface of cover matrix through hole, and valve body and cover screw; One-way valve spring is installed in the cylindrical interior volume of valve body, and pretightning force is acted on the lower surface of retaining valve bead; Described valve body is the open column shape body, and its outer cylinder top is provided with screw thread, and the below is provided with a plane; The center of described pretightning force set screw is polygonal inner chamber.
The edge in the hole that distributes on the described rotating disk is provided with groove; Be provided with jump ring in the shaft shoulder of described transposer pedestal; The wheel rim place of described rotating disk driven wheel and rotating disk is 0.25~1 gear pair.
Described power suction pipe and suction pipe spring are intertwined, and suction pipe spring one end is located on the suction pipe support bar; The other end of described sampling pipette passes the nearly sample to be collected of suction cover articulating; The described top that is provided with in the positioning body through hole is equipped with rubber seal; Described submersible machine, transmission shaft are coaxial with driving gear; The axis of follower gear is coaxial with the excentric shaft of cam; The described headstock gear guide pole quantity that is installed in the installation of positioning body upper surface is a plurality of.
Principle of work of the present invention is as follows:
The mouth of pipe of sampling pipette is aimed at sample to be collected, and rotating disk forwards hold-up tank the below of positioning body to, and this moment, cam was rotated to the maximum eccentric radius by minimum eccentric arm place, and positioning body moves downward under the extruding of cam.
Positioning body is a peviform thing, is provided with fillet on the basin edge of indent; Preset two sections through holes at the bottom of the basin, the through hole exit is provided with the top, links to each other with suction pipe (sampling pipette and power suction pipe) respectively, with contacted two the suction pipe ends of hold-up tank the top of being furnished with rubber seal is installed; The other end of power suction pipe is connected with vane pump.
Move downward in the process at positioning body, hold-up tank slips into the positioning body below along the fillet of positioning body, and the top of suction pipe end contacts with the retaining valve bead of hold-up tank, comes directly towards the column into hollow, and itself and the contacted end face of retaining valve bead have gap; When the top contacted with the retaining valve bead, fluid can flow to or flows out hold-up tank from opening position.
During pretightning force that the pressure that acts on the retaining valve bead when the suction pipe end makes progress greater than one-way valve spring, the retaining valve bead is forced to leave the conical surface of retaining valve, and retaining valve is opened, and sampling pipette and vane pump are by the inner chamber formation loop of hold-up tank.
The flow direction that turns to the decision sample of vane pump, thus sample can be sucked or blow out hold-up tank; The flow of vane pump has determined the flow state of sample; Under the state of fluid turbulence, can realize no disturbance sampling operation to the sampler space.
In sampling process, the O-ring seal of top is isolated the hold-up tank and the non-sampler space, has guaranteed the purity of sample.
After sampling was finished, separated with the retaining valve bead top, and under the effect of one-way valve spring pretightning force, the retaining valve bead is attached on the conical surface of hold-up tank, closed check valve, and hold-up tank is isolated from the outside.At this moment, the cavity pressure of hold-up tank is the pressure of sample when the sampler space.This pressure can not change in the hold-up tank floating-upward process.
The coating of antiacid caustic corrosion is plated on inner bag surface at hold-up tank; Interior end liner at coating has thermal insulation material; Environment can not change around this measure can keep the temperature, pressure, potential of hydrogen of sample etc.
A plurality of hold-up tanks are installed on the same rotating disk, come the position of conversion hold-up tank by the rotation of rotating disk, and this structure can be implemented in a sampling spot place and gathers a plurality of samples.
In sum, the present invention has the following advantages:
1. sampling efficiency height.The present invention is in the sampling process surrounding environment of disturbance sample to be collected hardly; Simultaneously, hold-up tank can come conversion working position and off-position by rotating disk.Therefore, can realize carrying out repeatedly sample collection work at a sampled point.
2. guarantee the quality (pressure, temperature, potential of hydrogen etc.) of sample.Structure of the present invention does not change sample because of quality takes place in environmental change around pressure, temperature, the potential of hydrogen etc.For example having overcome hydrothermal solution sulfide Yin Wendu reduces and solidifies, the granule underwater ice reduces to distil because of pressure, plankton causes blast because of the body internal pressure greater than external pressure under water, under water the plankton around the crater because of some chemical analysis of the reduction death of potential of hydrogen and sample in transportation diluted wait difficult.
3. storing safety, convenient.Use when of the present invention, hold-up tank can take off from rotating disk and carry out single transporting, and handles respectively.
4. energy consumption is low.Adopt when of the present invention, the pressure in the operating environment is greater than the cavity pressure of hold-up tank.Under external pressure, cam can be saved big energy and open retaining valve.At this moment, the pressure equilibrium of hold-up tank cavity pressure and sample space.Therefore, vane pump can cause the pressure reduction of hold-up tank inner chamber and exocoel with a small amount of energy.
5. closed performance is good.Implement when of the present invention, along with sampling thief emerges, it is big that the pressure differential of hold-up tank cavity pressure and ambient pressure becomes; Acting force between retaining valve bead and the hold-up tank inwall increases thereupon.It is tight more more that this result causes the retaining valve bead to contact with hold-up tank, and closed performance is better.
6. can realize non-boundary disturbance, the sampling of no pressure differential.In of the present invention, the flow state of vane pump control sample makes sample keep disturbed flow condition, can be implemented in the sampling process non-boundary disturbance to the sample space.
7. accurate positioning.Realize that by chain sample is shifted, the problem of beating of chain appearance in rotation process is compared with prior art, the secondary technology of the fine module gear that the present invention adopts the wheel rim place of rotating disk driven wheel and rotating disk to constitute, hold-up tank is rotated with rotating disk, this gear pair can realize that the low-angle of rotating disk rotates, and has guaranteed the degree of accuracy of hold-up tank evolution.The transposer pedestal has supporting mechanism, makes rotating disk when being subjected to the downward acting force of positioning body, provides anchorage force upwards to rotating disk, makes rotating disk still remain on working face, for the hold-up tank evolution provides quality of balance.In addition, because the axle of the oil-filled code-disc of electromagnetism is connected with the central shaft of transposer pedestal, the present invention can detect the angle that rotating disk turns over, thereby draws the position of hold-up tank; In addition, the positioning action of matrix through hole on the location relation of the fillet of positioning body and the fillet of cover and top and the cover has further guaranteed the degree of accuracy of hold-up tank evolution.
Description of drawings
Accompanying drawing 1 is that air-water mixture of the present invention reaches plankton sampling thief schematic diagram under water.
Accompanying drawing 2 is that air-water mixture of the present invention reaches the general view of plankton sampling thief under water.
Accompanying drawing 3 is vertical views of accompanying drawing 2.
Accompanying drawing 4 is A-A views of accompanying drawing 3.
Accompanying drawing 5 is B-B views of accompanying drawing 4.
Accompanying drawing 6 is hold-up tank vertical views in the accompanying drawing 4.
Accompanying drawing 7 is C-C views of accompanying drawing 6.
Accompanying drawing 8 is upward views of headstock gear in the accompanying drawing 4.
Accompanying drawing 9 is front views of headstock gear in the accompanying drawing 4.
Accompanying drawing 10 is D-D views of accompanying drawing 9.
Accompanying drawing 11 is vertical views of transposer in the accompanying drawing 4.
Accompanying drawing 12 is E-E views of accompanying drawing 11.
Wherein: 1 is sampling pipette, and 2 are extension spring, and 3 is cam, 4 is positioning body, and 5 is the power suction pipe, and 6 is vane pump, 7 is rotating disk, and 8 is hold-up tank, and 9 is one-way valve spring, 10 is the retaining valve bead, and 11 is the suction pipe spring, and 12 is the transposer pedestal, 13 is the suction pipe support bar, and 14 is the headstock gear pedestal, and 15 is submersible machine, 16 is the reductor support, and 17 is reductor, and 18 is driving gear, 19 is follower gear, and 20 is shaft joint, and 21 is transmission shaft, 22 is the oil-filled code-disc of electromagnetism, and 23 is cover, and 24 is valve body, 25 is the pretightning force set screw, and 26 is tank body, and 27 is turntable bearing, 28 is jump ring, and 29 is O-ring seal, and 30 are the top, 31 are the extension spring nut, and 32 are motor installation block, and 33 is the suction pipe collar, 34 is the headstock gear guide pole, and 35 is the rotating disk driven wheel, and 36 is the rotating disk loam cake, 37 is bearing in reduction gears, 38 are the deceleration arbor, and 39 is the code-disc pedestal, and 40 is crossbeam.
Embodiment
Below in conjunction with drawings and Examples the present invention is described in further detail.
Air-water mixture of the present invention and under water the plankton sampling thief mainly form by transposer, headstock gear, hold-up tank three parts, wherein transposer, headstock gear are installed as one with carrier (for example underwater robot) respectively, hold-up tank is embedded in transposer inside, in the headstock gear below.
1. hold-up tank
Hold-up tank 8 is mainly formed (shown in accompanying drawing 1,4,6,7) by retaining valve bead 10, cover 23, valve body 24, pretightning force set screw 25, tank body 26, one-way valve spring 9, and wherein: cover 23 is provided with two matrix through holes, i.e. import and outlet; The upper surface indent of matrix through hole is beneficial to top 30 and slips into through hole; The lower surface of matrix through hole is made the conical surface, and retaining valve bead 10 can closely be contacted with the conical surface; Internal thread is made in conical surface bottom at cover 23; Internal thread and the cover 23 of valve body 24 by cover 23 screws and is one.Retaining valve bead 10 is installed between cover 23 and the valve body 24 and with the conical surface of cover 23 and contacts; One-way valve spring 9 is installed in by pretightning force set screw 25 in the cylindrical interior volume of valve body 24 and with the lower surface of retaining valve bead 10 and contacts; Pretightning force set screw 25 screws with the internal thread of valve body 24; Cover 23 is combined into one with welding manner and tank body 26.
Valve body 24 is the open column shape body, and its outside cylinder upper end external threading forms screw thread pair with cover 23; Valve body 24 outside cylinder lower ends are provided with a plane, to make things convenient for the wrench clamping.
The center of pretightning force set screw 25 is orthohexagonal inner chamber, by the distance that Allen wrench is regulated 23 of pretightning force set screw 25 and covers, and the pretightning force of regulating one-way valve spring 9, and guarantee the work requirements of the different depth of waters with this pretightning force.
Be installed in the groove of rotating disk 7 by the boss of rotating disk loam cake 36 tank body 26 sidewalls.
When top 30 acts on pressure on the retaining valve bead 10 greater than the pretightning force of one-way valve spring 9, retaining valve bead 10 forms the slit with the conical surface of cover 23, the retaining valve of hold-up tank 8 import and exports is opened, hold-up tank 8 inner chambers communicate with top 30 inner chambers, and fluid flows in the hold-up tank 8 by top 30.
When top 30 acted on pressure on the retaining valve bead 10 less than the pretightning force of one-way valve spring 9, retaining valve bead 10 closely contacted with the conical surface of cover 23, so retaining valve bead 10 has sealed hold-up tank 8 inner chambers.
In addition, rely on three place's boss (as shown in Figure 6) of the side-walls of tank body 26 to fix hold-up tank 8.
2. transposer
Transposer is mainly formed (shown in Fig. 3,4,5,11,12) by the oil-filled code-disc 22 of electromagnetism, turntable bearing 27, jump ring 28, transposer pedestal 12, rotating disk loam cake 36, rotating disk 7, rotating disk driven wheel 35, reductor support 16, reductor 17, bearing in reduction gears 37, deceleration arbor 38, code-disc pedestal 39, wherein: rotating disk 7 is a disk-like structure, the hole of the uniform a plurality of circles of its periphery, the edge in each hole is provided with groove.Hold-up tank 8 places in the hole of rotating disk 7, and rotating disk loam cake 36 usefulness bolts are pressed in the boss of hold-up tank 8 sidewalls in the groove of rotating disk 7, and hold-up tank 8, rotating disk 7, rotating disk loam cake 36 are become one.
Transposer pedestal 12 is fixed on the carrier by threaded hole; Rotating disk 7 places on the shaft shoulder of transposer pedestal 12, by the central shaft formation revolute pair of turntable bearing 27 with rotating disk 7.Jump ring 28 embeds in the shaft shoulder of transposer pedestals 12, and moving axially of restriction hold-up tank 8, rotating disk 7, rotating disk loam cake 36 can only be rotated hold-up tank 8 around the central shaft of transposer pedestal 12.
The end face of the oil-filled code-disc 22 of electromagnetism is screwed in the bottom of code-disc pedestal 39, and the central shaft that makes the axle of the oil-filled code-disc 22 of electromagnetism pass code-disc pedestal 39 and transposer pedestal 12 is connected.By screw code-disc pedestal 39 and rotating disk loam cake 36 are linked into an integrated entity.
The edge of transposer pedestal 12 upwards is provided with the support section of projection, and in rotating disk 7 belows, the lower surface of it and rotating disk 7 constitutes sliding pair and rotating disk 7 is played a supportive role.
The deceleration arbor 38 of reductor 17 is installed between transposer pedestal 12 and the reductor support 16 by bearing in reduction gears 37, and rotating disk driven wheel 35 is installed on the deceleration arbor 38 and with rotating disk 7 and meshes.
Bearing in reduction gears 37 has limited endwisely slipping of rotating disk driven wheel 35 by the shaft shoulder of deceleration arbor 38, and it is rotated around deceleration arbor 38.So reductor 17 passes torque to rotating disk driven wheel 35 by deceleration arbor 38.Rotating disk driven wheel 35 constitutes the fine module gear pair and drives rotating disk 7 rotations with this with the wheel rim place of rotating disk 7.Hold-up tank 8 rotates with rotating disk 7, thereby realizes evolution.
The gear at rotating disk driven wheel 35 and rotating disk 7 wheel rim places constitutes the fine module gear pair, and (described rotating disk driven wheel 35 is 0.25~1 modulus with the wheel rim place of rotating disk 7, the present embodiment modulus is 1), this gear pair can realize that the low-angle of rotating disk 7 rotates, and has guaranteed the degree of accuracy of hold-up tank 8 evolutions; Transposer pedestal 12 constitutes sliding friction pair with the lower surface of rotating disk 7, this structure not only makes rotating disk 7 keep balance in rotation process, also make simultaneously rotating disk 7 when being subjected to the downward acting force of positioning body 4, anchorage force upwards is provided for rotating disk 7, make rotating disk 7 still remain on working face.
When rotating disk 7 when the central shaft of transposer pedestal 12 rotates, code-disc pedestal 39 drives the code-disc bodies and rotates with rotating disk 7; Because the axle of the oil-filled code-disc 22 of electromagnetism is connected with the central shaft of transposer pedestal 12, so code-disc body and code-disc rotating shaft form relative motion; Detect the angle that rotating disk 7 turns over by this relative motion, thereby draw the position of hold-up tank 8.
3. headstock gear
Headstock gear is mainly formed (shown in Fig. 2,3,4,8,9,10) by sampling pipette 1, extension spring 2, cam 3, positioning body 4, power suction pipe 5, vane pump 6, suction pipe spring 11, suction pipe support bar 13, headstock gear pedestal 14, submersible machine 15, driving gear 18, follower gear 19, shaft joint 20, transmission shaft 21, O-ring seal 29, top 30, extension spring nut 31, motor installation block 32, the suction pipe collar 33, headstock gear guide pole 34, wherein:
Headstock gear pedestal 14 is fixed on the carrier by threaded hole; Submersible machine 15 is installed the below that block 32 is fastened on headstock gear pedestal 14 by motor, and driving gear 18 is connected with transmission shaft 21 and is installed in the mounting hole of headstock gear pedestal 14, and follower gear 19 is connected with cam 3 and meshes with driving gear 18; Submersible machine 15, transmission shaft 21 are coaxial with driving gear 18; The axis of follower gear 19 is coaxial with the excentric shaft of cam 3; Shaft joint 20 is installed on the transmission shaft 21; Rotating torque passes to transmission shaft 21 by submersible machine 15 through shaft joint 20; Transmission shaft 21 drives driving gear 18 and drives follower gear 19 with cam 3 rotations.
Headstock gear guide pole 34 is welded on positioning body 4 upper surfaces, and (present embodiment has 3, for triangle distributes), the crossbeam 40 that passes headstock gear pedestal 14 bottoms is installed in positioning body 4, by extension spring 2 and extension spring nut 31 positioning body 4 is hung on headstock gear pedestal 14 belows.At this moment, cam 3 contacts installation with the upper surface of positioning body 4.
The suction pipe support bar 13 and the suction pipe collar 33 are welded as a whole with positioning body 4 respectively; Power suction pipe 5 is coiled into one with the suction pipe spring 11 that hangs on the suction pipe support bar 13; Sampling pipette 1 passes positioning body 4 respectively with an end of power suction pipe 5 and is connected with top 30; Seal groove in the top 30 of the through hole of positioning body 4 is embedded in rubber seal 29; The other end of power suction pipe 5 and vane pump 6 are connected; The other end of sampling pipette 1 passes the suction pipe collar 33 and is directly adjacent to sample to be collected.
When submersible machine 15 drives shaft joints 20 and drives driving gears 18 and rotate by transmission shaft 21, rotating torque is acted on the cam 3 by follower gear 19 by driving gear 18, cam 3 moving axis 22 that rotates is rotated.When cam 3 when the maximum eccentric radius is rotated, positioning body 4 moves downward; Otherwise, when cam 3 when minimum eccentric arm place rotates, positioning body 4 moves upward.Headstock gear guide pole 34 has guided moving up and down of positioning body 4 with acting force between the headstock gear pedestal 14 under the cooperation of extension spring 2.
Extension spring nut 31 can be regulated extension spring 2 and act on pretightning force on the positioning body 4, and cam 3 is contacted all the time with positioning body 4; Thereby guarantee the sensitivity that positioning body 4 moves up and down.Suction pipe spring 11 is intertwined with power suction pipe 5, can make power suction pipe 5 that certain retractility is arranged, and when positioning body 4 moves up and down or suction pipe when expanding with heat and contract with cold, prevents that suction pipe from rupturing; The suction pipe collar 33 prevents that sampling pipette 1 from being twined by transmission shaft 21.
Specific operation process is as follows:
1. to the gatherer process of a plurality of samples in same place
Enter in the sampling environmental process at sampling thief, the boss of tank body 26 sides is pressed in the groove of rotating disk 7 by rotating disk loam cake 36, makes tank body 26 and rotating disk 7 form one.The wheel rim of rotating disk 7 and rotating disk driven wheel 35 constitute gear pair and make hold-up tank 8 location according to this.
When the present invention began operation, sampling pipette 1 was aimed at sample to be collected, and cam 3 rotates and makes positioning body 4 press to hold-up tank 8.In the process that positioning body 4 moves downward, the fillet of positioning body 4 contacts with the fillet of cover 23, and relies on the cambered surface guiding positioning body 4 of fillet concentric with hold-up tank 8.When positioning body 4 was moved down into certain position, the top 30 of positioning body 4 contacted with the arc pit of hold-up tank 8, and top 30 makes hold-up tank realize second positioning along the import and export that the arc pit slides into hold-up tank 8, and the seawater of import and export is outwards extruded.Positioning body 4 continues motion, top 30 utilize self with O-ring seal 29 inlet and the outlet of hold-up tank 8 is isolated from the outside; The top 30 of positioning body 4 promotes retaining valve bead 10, makes the conical surface of spheroid and cover 23 through hole bottoms form gap, one-way valve opens.
Sampling pipette 1 communicates with hold-up tank 8 inner chambers by the endoporus of positioning body 4; Power suction pipe 5 passes through another endoporus of positioning body 4 with vane pump 6 and hold-up tank 8 inner chamber UNICOMs; So vane pump 6 is communicated with sampling pipette 1.One end of sampling pipette 1 is aimed at sample to be collected, by the pressure of control vane pump 6 and sample rate and the sample flow state that flow is controlled sampling thief; The turning to of vane pump 6 determined sample to suck or blow out the motion of hold-up tank 8.At this moment, cam 3 stops the rotation; Sampling pipette 1, positioning body 4, hold-up tank 8, power suction pipe 5, vane pump 6 form the loop.
After single hold-up tank 8 is filled sample, cam 3 rotation direction least radius places, positioning body 4 liftings.Top 30 moves upward with positioning body 4; Retaining valve bead 10 is under the effect of one-way valve spring 9 pretightning forces, and spheroid contacts and produce micro-elasticity deformation with the conical surface, and with the retaining valve sealing, hold-up tank 8 keeps closed state.In this process, top 30 with O-ring seal 29 with the inlet of hold-up tank 8 and outlet and space outerpace isolation.
When cam 3 rotated to the least radius place, positioning body 4 separated fully with hold-up tank 8.Rotating disk 7 leaves positioning body 4 belows with hold-up tank 8, and simultaneously, next hold-up tank enters sampling working position (positioning body 4 belows) by rotating disk 7 drives; Realization is to the collection of the next sample in same place.In sampling process, the present invention does not have big motion, so the sampler space is not almost had disturbance.
The extension spring 2 that is connected on the positioning body 4 makes positioning body 4 contact all the time with cam 3, and positioning body 4 and headstock gear pedestal 14 are connected as a single entity; Guided the direction that moves up and down of positioning body 4 with extension spring 2 concentric headstock gear guide poles 34.The oil-filled code-disc 22 of electromagnetism on the rotating disk is used for monitoring the rotational angle of rotating disk 7, guarantees that hold-up tank 8 accurately enters the working position.
Power suction pipe 5 passes the suction pipe collar 33 and places hold-up tank 8 tops, has prevented that suction pipe is wound in rotating disk 7 rotary courses; Sampling pipette 1 is wound up as one with suction pipe spring 11, because the flexible acting force of suction pipe in positioning body 4 moves up and down process that absorbed of suction pipe spring 11, has avoided the dilatory effect of intussusception and ruptures; Simultaneously, because hydrothermal solution causes thermal deformation to suction pipe, this structure has also overcome thermal deformation effectively to influence that suction pipe caused.
After sampling was finished, cam 3 forwarded the least radius place to, and positioning body 4 is lifted away from hold-up tank 8 under the pulling force effect of extension spring 2.
2. guarantee that by hold-up tank air-water mixture reaches the quality of plankton sample under water
The sample that the present invention gathered is stored in the inner chamber of hold-up tank 8.Two through holes of cover 23 constitute entering the hole and portalling of hold-up tank 8 respectively.Retaining valve bead 10 contacts with the conical surface of cover 23 through hole lower surfaces under the pressure effect of one-way valve spring 9; The elastic deformation of material between surface of contact formed the mechanicalness sealing of hold-up tank 8.
Sampling is during operation, and the pretightning force of one-way valve spring 9 is offset in top 30, forms the gap between the conical surface and the retaining valve bead 10, vane pump 6 make the import of hold-up tank 8 and export between form pressure differential.When inlet pressure during greater than outlet pressure, sample flows into hold-up tanks 8 inner chambers through the spherome surface of retaining valve bead 10 along valve body 24 by the through hole of cover 23; Otherwise when hold-up tank 8 inlet pressure during less than outlet pressure, sample blows out hold-up tank 8 by valve body 24 from the through hole of cover 23.
Valve body 24 has guaranteed the force direction of spring; Pretightning force set screw 25 determines the pretightning force size of one-way valve spring 9 by the degree of screwing of screw thread, thereby guarantees airtight quality.
When sampling thief of the present invention leaves sampling during environment, because the chamber pressure of hold-up tank 8 is greater than external pressure, retaining valve bead 10 is in sealing state all the time, sample by safe storage at hold-up tank 8 inner chambers.
When taking out sample, with positioning body 4 open check valve 8; Vane pump 6 blows out hold-up tank 8 with sample.
The inwall of hold-up tank 8 tank bodies of the present invention is made substrate by thermal insulation material, plates anti-corrosion layer on the thermal insulation material surface.Like this, both can guarantee that the temperature of sample can not reduce at short notice, and can guarantee that again the potential of hydrogen of sample can not be damaged.

Claims (13)

1. an air-water mixture reaches plankton sampling apparatus under water, it is characterized in that: form by transposer, headstock gear, hold-up tank (8) three parts, wherein transposer, headstock gear are installed as one with carrier respectively, hold-up tank (8) is embedded in transposer inside, in the headstock gear below; Wherein:
Hold-up tank (8) is made up of retaining valve, cover (23), tank body (26), and described cover (23) is provided with two matrix through holes, and retaining valve is installed in the matrix through hole below of cover (23), and places in the tank body (26); Cover (23) is structure as a whole with tank body (26); Tank body (26) is installed in the rotating disk (7) of transposer by the boss of its sidewall, and is positioned at the below of headstock gear positioning body (4);
Transposer comprises the oil-filled code-disc of electromagnetism (22), transposer pedestal (12), rotating disk loam cake (36), rotating disk (7), rotating disk driven wheel (35), reductor (17), bearing in reduction gears (37), deceleration arbor (38), code-disc pedestal (39), the oil-filled code-disc of described electromagnetism (22) is installed in the top of code-disc pedestal (39), the central shaft that its axle passes code-disc pedestal (39) and transposer pedestal (12) is connected, and code-disc pedestal (39) links into an integrated entity with rotating disk loam cake (36); Be equipped with on the rotating disk (7) of rotating disk loam cake (36) and be distributed with a plurality of holes that are used to place hold-up tank (8), rotating disk (7) places on the shaft shoulder of transposer pedestal (12) by turntable bearing (27), the deceleration arbor (38) of reductor (17) is installed between transposer pedestal (12) and the reductor support (16) by bearing in reduction gears (37), and rotating disk driven wheel (35) is installed in deceleration arbor (38) and goes up and mesh with rotating disk (7); Transposer pedestal (12) is fixed on the carrier; The edge of described transposer pedestal (12) upwards is provided with the support section of projection, is positioned at rotating disk (7) below;
Headstock gear is made up of suction pipe, extension spring (2), cam (3), positioning body (4), vane pump (6), headstock gear pedestal (14), submersible machine (15), gear, shaft joint (20), transmission shaft (21), top (30), headstock gear guide pole (34), and described headstock gear pedestal (14) is fixed on the carrier; Submersible machine (15) is fastened on the below of headstock gear pedestal (14), and on the transmission shaft (21) that submersible machine (15) links to each other driving gear (18) is installed, follower gear (19) and driving gear (18) engagement, and be connected with cam (3); Cam (3) contacts installation with the upper surface of positioning body (4); Suction pipe support bar (13) is solidified as a whole with positioning body (4); Sampling pipette (1) passes positioning body (4) respectively with an end of power suction pipe (5) and is connected with top (30); The other end of power suction pipe (5) is connected with vane pump (6); The other end of sampling pipette (1) is near sample to be collected; Shaft joint (20) is installed on the transmission shaft (21); The crossbeam (40) that headstock gear guide pole (34) passes headstock gear pedestal (14) bottom is installed on the positioning body (4), and positioning body (4) is hung on headstock gear pedestal (14) below by extension spring (2).
2. reach plankton sampling apparatus under water according to the described air-water mixture of claim 1, it is characterized in that: the matrix through hole upper surface of described cover (23) is a concave inward structure, and lower surface is the conical surface.
3. reach plankton sampling apparatus under water according to claim 1 or 2 described air-water mixtures, it is characterized in that: described retaining valve is made up of retaining valve bead (10), valve body (24), pretightning force set screw (25), one-way valve spring (9), retaining valve bead (10) is installed between cover (23) and the valve body (24) by pretightning force set screw (25), and is connected with the contact of the conical surface of cover (23), valve body (24) and cover (23) screw; One-way valve spring (9) is installed in the cylindrical interior volume of valve body (24), and contacts with the lower surface of retaining valve bead (10).
4. reach plankton sampling apparatus under water according to the described air-water mixture of claim 3, it is characterized in that: described valve body (24) is the open column shape body, and its outer cylinder top is provided with screw thread, and the below is provided with a plane; Valve body (24) inner chamber below is provided with internal thread.
5. reach plankton sampling apparatus under water according to the described air-water mixture of claim 4, it is characterized in that: the center of described pretightning force set screw (25) is polygonal inner chamber.
6. reach plankton sampling apparatus under water according to the described air-water mixture of claim 1, it is characterized in that: the edge that is distributed in the hole on the described rotating disk (7) in the transposer is provided with the groove that adapts with tank body (26) sidewall boss.
7. reach plankton sampling apparatus under water according to the described air-water mixture of claim 1, it is characterized in that: be provided with jump ring (28) in the shaft shoulder of described transposer pedestal (12).
8. reach plankton sampling apparatus under water according to the described air-water mixture of claim 1, it is characterized in that: described rotating disk driven wheel (35) is 0.25~1 gear pair with the wheel rim place of rotating disk (7).
9. reach plankton sampling apparatus under water according to the described air-water mixture of claim 1, it is characterized in that: described headstock gear medium power suction pipe (5) is intertwined with suction pipe spring (11), and suction pipe spring (11) one ends are located on the suction pipe support bar (13); One end of described sampling pipette (1) passes the suction pipe collar (33) near sample to be collected; Sampling pipette (1) passes positioning body (4) respectively with the other end of power suction pipe (5) and is connected with top (30).
10. reach plankton sampling apparatus under water according to the described air-water mixture of claim 1, it is characterized in that: described positioning body (4) places hold-up tank (8) top; Top (30) is corresponding with the matrix through hole of described cover (23).
11. reach plankton sampling apparatus under water according to the described air-water mixture of claim 1, it is characterized in that: described top (30) in positioning body (4) through hole is equipped with rubber seal (29).
12. according to described air-water mixture of claim 1 and plankton sampling apparatus under water, it is characterized in that: described submersible machine (15), transmission shaft (21) are coaxial with driving gear (18); The axis of follower gear (19) is coaxial with the excentric shaft of cam (3).
13. reach plankton sampling apparatus under water according to the described air-water mixture of claim 1, it is characterized in that: described headstock gear guide pole (34) quantity that is installed in positioning body (4) upper surface is a plurality of.
CNB2004100504828A 2004-09-22 2004-09-22 Sampler for water-gas mixture and underwater planktonic microorganism Expired - Fee Related CN100348965C (en)

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