CN104186438A - Benthonic animal capture and suction device - Google Patents
Benthonic animal capture and suction device Download PDFInfo
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- CN104186438A CN104186438A CN201410401640.3A CN201410401640A CN104186438A CN 104186438 A CN104186438 A CN 104186438A CN 201410401640 A CN201410401640 A CN 201410401640A CN 104186438 A CN104186438 A CN 104186438A
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Abstract
The invention provides a benthonic animal capture and suction device. The benthonic animal capture and suction device comprises a capture and suction head arranged in the inner cavity and provided with a capture and suction opening, a guide tube communicated with the capture and suction head and used for guiding an object captured and sucked by the capture and suction head, and multiple outwards-protruding harrowing nails scattered nearby the capture and suction opening of the capture and suction head.
Description
Technical field
The present invention relates to a kind of zoobenthos and adopt suction device, relate in particular to the zoobenthos that is suitable for the more bottom environment of foreign material and adopt suction device.
Background technology
In surface water body, there are many planktons and zoobenthos, it has very important value to water environment evaluation monitoring, Hydrobiology, ecological study, and people have successively invented sampling apparatus and the method for various floating biology and zoobenthos.
As plankton collecting device, plankton net is the most common, according to survey objective, can carry out planktonic qualitative survey and quantitative interview with it, even can also to the sand grain in water body, carry out qualitative research with it.Yet it still has the following disadvantages:
In the quantitative interview of zooplankton, drainage amount large (being generally 20L~50L water body) is larger to field sampling personnel's physical consumption;
For the river of some severe contaminations, there are a lot of volatile contaminants, when quantitative collection zooplankton, larger to sampler's healthy threat;
Can accurately not quantify sample contents (for example sand grain) content in water body and the ratio between them of each grain-size grade.
In addition, as zoobenthos harvester, according to the difference of qualitative survey and the such survey objective of quantitative interview, conventional quantitative interview instrument has: the inferior bottom sampler of Peter and improvement type thereof, it sinks under water by own wt, take out the bed mud of certain area, thereby calculate the quantity of zoobenthos in monitoring waters; Suo Bai net, it is transferred to the substrate in the sample boxes of certain area in the string bag, thereby collects zoobenthos.Common qualitative survey instrument has D type net, and it is collected bed mud of sampled point etc. in the string bag, then filters, sieves and obtain zoobenthos; Right angle net (operating type is identical with D type net); Artificial substratum class sampling instrument, is placed on sampled point a period of time, after zoobenthos freely creeps and enters in it, collects, analyzes.Yet above-mentioned sampling instrument exists following not enough:
In current zoobenthos sampling instrument,, not yet there is a different water depth that is applicable in comprehensive general deficiency, and possess the zoobenthos harvester of qualitative collection and quantitative collection function simultaneously;
The sampling instruments such as above-mentioned sampling instrument, particularly D type net and rope uncle net, need sample collector to carry the sampling of paddling of sampling instrument, thus when investigating the water body environment of sampling, be Mud Sediment or winter during subglacial, all very high to sample collector's physical efficiency requirement, requirement of shelter;
To contaminative river, have many noxious pollutants, when utilizing above-mentioned zoobenthos sampling instrument, often contact with water body more, larger to sample collector's threat;
In addition, artificial substratum class sampling instrument enters in it because needs zoobenthos freely creeps, therefore often need to place it in a period of time (general about 8 weeks) in investigation waters, investigate length consuming time, be unsuitable for large watershed flow-type Sampling Survey, and investigation apparatus easily suffers artificial destruction in put procedure.
Summary of the invention
The present invention researches and develops in view of the problem of above-mentioned various existing sampling apparatuses.A technical scheme of the present invention is that a kind of zoobenthos is adopted suction device, comprising: internal cavities adopt suction nozzle, there is the suction inlet of adopting; Conduit, is communicated with the described suction nozzle of adopting, for guide adopt suction that suction nozzle is adopted adopt suction object; Wherein, described adopt suction nozzle described in adopt near suction inlet, be scattered with a plurality of outwards outstanding harrow nails.
In addition,, adopt suction nozzle and can, for long barrel shape, have along its length the elongated suction inlet of adopting; Described in being arranged in, adopts described harrow nail scanning direction advance side or the both sides of suction inlet.
The described suction nozzle of adopting can be mace shape, whole is oval tubular roughly, and one end is sealed, and the other end is communicated with described conduit, along this roughly the side circumference of oval tubular be scattered with a plurality of outstanding described harrow nails laterally, described in the space described in each between harrow nail is scattered with, adopt suction inlet.
The described suction nozzle of adopting can be shower nozzle shape, in the general plane of shower nozzle, is partly scattered with described a plurality of outwards outstanding harrow nail, and the space between each harrow nail is scattered with adopts suction inlet.
Described conduit with described in adopt the sucker rod that can be situated between between suction nozzle by hard and be communicated with.
Can also be included in outside described conduit, with described in adopt the control stick of the hard of suction nozzle binding.
It is suitable that the described gross area of adopting suction inlet can and be adopted the sectional area that suction nozzle is connected with conduit.
Accompanying drawing explanation
Fig. 1 is the overall structure figure of the aquatile harvester of the embodiment of the present invention.
Fig. 2 is the structural representation of inhaling device and variation thereof of adopting of the explanation embodiment of the present invention.
Fig. 3 is the figure of the structure of explanation quantitative frame of the present invention and variation thereof.
Fig. 4 be explanation another kind of variation quantitative frame structure and with the figure coordinating that adopts suction nozzle.
Fig. 5 is the machine-processed schematic diagram that explanation is rocked classified filtering device.
Fig. 6 is the structural representation of explanation sample collection device of the present invention.
Fig. 7 is the schematic diagram of structure of the comb that connects of delivery port of explanation suction pump.
The overall structure figure of aquatile harvester when Fig. 8 is explanation use vacuum draw mode.
Embodiment
By embodiment, the present invention is described below, but embodiment is only illustration, not forms limiting the scope of the invention.
First the summary of aquatile harvester of the present invention is described.Fig. 1 is the overall structure figure of the aquatile harvester of the embodiment of the present invention.The aquatile harvester of the embodiment of the present invention mainly comprises adopting on the whole inhales device 100, classified filtering device 200, main body 300, sample collection device 400, suction pump 500, drainage gathering unit 600.For each constitutive requirements, be illustrated respectively below.
(adopt and inhale device)
Fig. 2 is the structural representation of inhaling device and variation thereof of adopting of the explanation embodiment of the present invention.As shown in Fig. 2 (a), adopt and inhale device 100 and comprise and adopt suction nozzle 101a, sucker rod 102.Adopt suction nozzle 101a for long barrel shape, internal cavities, has elongated suction inlet along its length.Sucker rod 102 is hard blank pipe, be convenient to holding operation and control the movement of adopting suction nozzle 101a, one end of this sucker rod 102 is assemblied in the approximate mid-section position of adopting suction nozzle 101a length direction, be connected with the internal cavities of adopting suction nozzle 101a, when starting of pump station described later, when adopting suction nozzle 101a and drawing aquatile based on its suction force, the objects to be checked such as the water of drawing and aquatile are inhaled in sucker rod 102.The other end of sucker rod 102 can be communicated with not shown conduit 103, and this conduit 103 is soft conduit, is convenient to the Object Oriented OO to be checked main body 300 described later of drawing adopting suction nozzle 101a.At this, it should be noted that, sucker rod 102 is not adopted the essential features of inhaling device, for example also can make to adopt suction nozzle 101a and directly be connected with the conduit 103 of hard, or outside conduit 103 separately by controlling and adopt suction nozzle 101a with the control stick of adopting suction nozzle 101a binding.
In addition, when zoobenthos being collected to sampling, therefore because zoobenthos is freely distributed in water body unlike plankton, but conventionally live in the more environment of the foreign material such as shale or cobble substrate, sometimes only with above-mentioned, adopt suction nozzle 101a and can not aspirate efficiently sampling.For being applicable to such sampling environment, the inventor proposes the suction nozzle of adopting of variation as follows.
As shown in Fig. 2 (b), this variation adopt suction nozzle 101b on above-mentioned basis of adopting suction nozzle 101a, in a side of suction inlet, along suction inlet direction, be placed with the harrow nail of some teeth.Collecting when sampling, utilize this harrow nail that cobble or impurity are pushed aside, and disturbance is hidden in zoobenthos wherein, by suction inlet, this zoobenthos is sucked and adopts suction nozzle 101a simultaneously.Thus, water-bed bulk object (such as stone, fallen leaves, rubbish etc.) rake can be opened, and the zoobenthos of energy disturbance respective regions, is convenient to suction collection.Preferably harrow nail is arranged in to the scanning direction advance side of suction inlet.In addition, also can all be arranged with this harrow nail in the both sides of suction inlet, so that adopt the shuttle-scanning suction of suction nozzle.
In addition, Fig. 2 (c) proposed the another kind of suction nozzle of adopting with harrow nail.This adopts suction nozzle 101c whole is mace shape, and caput is general cylindrical shape, the sealing of columnar one end, and the other end is communicated in conduit 103, along columnar side circumference, is scattered with some outstanding harrow nails laterally, and the space between each harrow nail is scattered with suction inlet.Utilize the suction nozzle of adopting of this shape, water-bed bulk object (such as stone, fallen leaves, rubbish etc.) rake can be opened equally, the zoobenthos of the respective regions of energy disturbance simultaneously, is convenient to suction collection.
In addition, Fig. 2 (d) proposed the another kind of suction nozzle of adopting with harrow nail.This adopts suction nozzle 101d whole is seedpod of the lotus head, is scattered with some outstanding harrow nails laterally in the general plane part of shower nozzle, and the space between each harrow nail is scattered with suction inlet.Utilize the suction nozzle of adopting of this shape, water-bed bulk object (such as stone, fallen leaves, rubbish etc.) rake can be opened equally, meanwhile, the zoobenthos of energy disturbance respective regions, is convenient to suction collection.
In addition, the gross area of the suction inlet shown in preferably above Fig. 2 (a)~(d), with sucker rod (or conduit) with to adopt the sectional area of suction nozzle connection suitable, the swabbing pressure when guaranteeing to adopt suction.
(quantitatively frame)
In addition,, when needs carry out the quantitative collection of zoobenthos for example, quantitative frame can be set and coordinate the work of inhaling device 100 of adopting.Fig. 3 is the figure of the structure of explanation quantitative frame of the present invention and variation thereof.(a) of Fig. 3 illustrates a kind of quantitative frame 104, it comprise rectangle (containing square) framework 1041, be connected in framework 1041 recovery rope 1042, be connected in the mooring anchor 1043 of framework 1041.
The a pair of length of side of design framework 1041, makes it suitable with above-mentioned suction inlet length of adopting suction nozzle (101a or 101b) on one side, and design its another to the length of side, make to meet required quantitative area.
The one end of reclaiming rope 1042 is connected in quantitative frame 1041, and the other end is grasped by user, for reclaiming quantitative frame.
Due to when the quantitative collection zoobenthos, quantitatively frame 104 is actual is placed in water-bedly, and when current are stronger, quantitatively frame is easily moved, and causes intending the area inaccurate of quantitative collection especially.Therefore mooring anchor 1043 is set, is not moved after making quantitative frame 104 fall into the bottom.At this, it should be noted that, so long as can temporarily fix the member of the position of quantitative frame 104, be not limited to above-mentioned mooring anchor 1043, pouring weight 1044 that for example also can be as shown in Fig. 3 (b), or at least diagonal position (being four bights in this example) at framework 1041 as shown in Fig. 3 (c) arranges staple 1045, make when quantitative frame 104 is placed in to the bottom, staple 1045 can stretch into water-bed mud or crack of stone, thereby accurately fixes quantitative frame 104.Now, also can staple 1045 be set respectively at the upper and lower surface of framework 1041, no matter which faces down while making framework 1041 fall into the bottom, staple 1045 that can be by respective face is fixed position effectively.In addition, can also as shown in Fig. 3 (d), by cotton rope, connect buoy 1046 respectively by least diagonal position (being four bights in this example) at framework 1041; buoy 1046 can not only make quantitative frame 104 according to required posture, fall into the bottom reposefully; can also play a role as the station location marker of quantitative frame 104; special in the sampling environment of water turbidity, this effect is very outstanding.Certainly, the gross buoyancy of buoy 1046 is less than the weight of quantitative frame 104 own, so that quantitatively frame 104 can sink under water.
Certainly, above-described quantitative frame is not only applicable to aquatile harvester of the present invention, can also effectively be applicable to zoobenthos harvester, such as rope uncle net, D type net, right angle net etc. of prior art.
In addition, Fig. 4 be explanation another kind of variation quantitative frame 104 structure and with the figure coordinating that adopts suction nozzle 101.As shown in Figure 4, quantitatively frame 104 is right angle " U " shape, should on the dual-side of " U " shape frame, have chute 105, and base length matches with the length of adopting suction nozzle 101.In addition, as shown in Figure 4, the two ends of adopting suction nozzle 101 have respectively an outstanding limit component 106 laterally, in the present embodiment, this limit component 106 is for having the nail-like of minor diameter part and large-diameter portion, and one end of minor diameter part is connected in the side of adopting suction nozzle 101, and the other end is connected in large-diameter portion.The path length of minor diameter part is slightly less than the width of the chute 105 of quantitative frame 104, makes to stretch into chute and moves along chute; The path length of large-diameter portion is greater than the width of chute 105, and while making in minor diameter part stretches into chute, large-diameter portion is stuck in the outside of quantitative frame 104, and the movement of suction nozzle 101 in the direction of quantitative frame base adopted in restriction.Thus, in the time will using quantitative frame 104, the minor diameter part of adopting the limit component 106 at suction nozzle 101 two ends is slipped into from one end of corresponding chute respectively, under the restriction of large-diameter portion, adopt suction nozzle 101 and can only move along chute 105.In the situation that it is certain to adopt the length of suction nozzle 101, by designing the length of the chute on the side of quantitative frame, just can gather needed quantitative area.
In addition, the technical characterictic of the mooring anchor of using about above-described quantitative frame, weight block, staple, buoy, quantitatively frame also can have wherein multiple simultaneously, now by the technique effect that has each feature concurrently and bring.
(classified filtering device)
Get back to Fig. 1, the unitary construction of classified filtering device 200 has been shown in Fig. 1.In the example of Fig. 1, classified filtering device comprises three layers of screen 201,202,203 being inclined relative to horizontal on the screen frame 301 that is arranged on main body 300.The sieve aperture (mesh) of three metafiltration sieves 201,201,203 successively reduces, thereby can sort out the object to be checked (such as plankton, zoobenthos, sand grain etc.) of different-grain diameter.The concrete size of the sieve aperture of each metafiltration sieve need to design according to actual sampling.
In addition, screens at different levels are set to certain angle of inclination with respect to the horizontal plane, make the object to be checked that is fed into screen under Action of Gravity Field, to flow downward and to filter on one side on one side, thereby compare when being horizontally disposed with screen, more be conducive to object to be checked being uniformly distributed on screen, guarantee the effect of fully filtering, also help the collection of sample collection device, , because screen tilts, therefore as long as sample collection device 400 is set in screen lower end, the filtrate being filtered out will automatically be collected in sample collection device 400 under the washing away of current, without specially cleaning again, collect operation.
Shown in Fig. 1 be three metafiltration sieves parallel oblique the state installed, screen progression is not limited to three layers, for example, can be also one deck, preferably more than two-layer, more preferably more than three layers, can increase as required or reduce.Multilayer screen also may not need parallel oblique, can, according to the state of current (such as flow velocity, flow etc.) or the adequacy requirement of filtering etc., set respectively the angle of inclination of each layer.In addition, each metafiltration sieve can not be also to tilt towards a direction, but intersects to tilt with "the" shape state.
In addition,, when the water turbidity being aspirated is up larger, for improving the efficiency of filtering, the effect that adds strong filter, can make each metafiltration sieve rock.The mechanical realization rocking about realizing this, that for example can utilize crank connecting rod apparatus is converted into rotation reciprocating theory of mechanics, for example, as shown in Fig. 5 (a), a side at screen frame 301 is installed crank axle device 302, and respectively by connecting rod connecting crank shaft device 302 and screen at different levels, specifically, one end of connecting rod is connected in the crank-pin of crank axle device 302 in the mode that can freely rotate along the circumferencial direction of crank axle, the other end is connected in screen in mode free to rotate.In addition, the head and the tail two ends of screens at different levels are erected at respectively on the set slide rail of screen frame 301, and screens at different levels can, under the drive of crank connecting rod apparatus, laterally be slided along slide rail.Manner as screens at different levels, herein exemplified with slide rail, but also can adopt other mechanical realization, for example hang on last layer screen or screen frame 301 in mode that can Free Slosh by messenger wire at four angles of each metafiltration sieve, thus, when the main shaft of crank axle device 302 is rotated, crank-pin drivening rod moves back and forth, and then drives each metafiltration sieve to rock regularly.In addition, also screen 201 that can the Jin Shi the superiors is connected in crank axle device 302, other each metafiltration screening is relatively unfixing by the screen 201 of the mode Yu Gai the superiors of for example welding, thus, when the superiors' screen 201 rocks with crank axle device 302, below each metafiltration sieve also synchronize and rock with it.
These are only an example, the mechanical schemes of rocking is also not limited to crank axle linkage, such as realizing this effect by any-modes such as cam gear, connecting rod of eccentric wheel devices.In addition, be also not limited to make each metafiltration sieve synchronously to rock, as long as guarantee that the screen of lower floor can receive the object to be checked after upper strata screen filters completely, also can only make the screen of certain layer rock as required.
More than show the example that screen frame is motionless, each metafiltration sieve is rocked relatively.In addition, can also as shown in Fig. 5 (b), make each metafiltration sieve relative with screen frame fixing, by being installed on the crank axle device 302 of main body, drive whole screen frame and screen to rock with respect to main body.
In addition,, when adopting the aspirator of vacuum draw mode described later, can drive whole suction filtration case to rock with respect to main body by being installed on the crank axle device 302 of main body.
(sample collection device)
The general structure of the sample collection device 400 of the embodiment of the present invention has been shown in Fig. 1.In the embodiment in figure 1, sample collection device 400 is divided into two kinds--basket type collector 400a and funnel type collector 400b.As shown in Fig. 6 (a), basket type collector 400a is the basket that base plate is scattered with the sieve aperture consistent with the slot size of the screen of corresponding stage, conventionally be installed in the tail end of the superiors' screen 201, its objective is and collect larger-size object to be checked that the superiors' screen 201 filters out etc., and by the water body that its filter opening may contain object to be checked, drain to the funnel type collector 400b of lower floor.
As shown in Fig. 6 (b), the funnel mouth 400b1, sectional area that funnel type collector 400b comprises the tail end place that is installed in screen the cone-shaped collection face 400b2 of convergence, the collector 400b3 of bottom that is connected in cone-shaped collection face 400b2 and the controlled valve 400b4 that is arranged on the bottom of collector 400b3 downwards gradually from funnel mouth 400b1, the funnel mouth of this funnel type collector 400b is designed to receive completely the filtrate that corresponding screen filters out.As required, also can on described cone-shaped collection face 400b2, scatter the sieve aperture consistent with the slot size of the screen of corresponding stage, further fully to filter.In addition, can also make collector 400b3 for being with graduated transparent collector.At this, it should be noted that, above-mentioned basket type collector 400a is not necessary constitutive requirements of the present invention, basket type collector 400a also can be set and for each metafiltration sieve, funnel type collector 400b be all set and carry out sample grading sample.
(aspirator)
As shown in Figure 7, aspirator has suction pump 500, can be conventional water pump, be arranged in main body 300, its water inlet is connected in adopts the conduit 103 of inhaling device 100, and delivery port is the superiors' screen 201 discharged to classified filtering device 200 by water, preferably discharged to its initiating terminal.Now, for making the water that aspirates as far as possible equably discharged to screen 201, can make as shown in Figure 7 the delivery port of suction pump 500 be connected in the comb 501 with the discharge outlet concordant with the initiating terminal of screen 201.The discharge outlet of comb 501 is erected near the initiating terminal of screen 201.
In addition,, for avoiding object to be checked, particularly aquatile broken by water pump, also can adopt the mode of vacuum draw.Specifically, as shown in Figure 8 classified filtering device 200, main body 300, sample collection device 400 are placed in to airtight suction filtration case 701, by suction filter pump (vavuum pump), make to produce negative pressure in suction filtration case, based on this negative pressure, Jie is communicated in adopting of suction filtration case by conduit 103 and inhales device 100 and will produce suction, realizes adopting absorbing the object collecting.
(drainage gathering unit)
With reference to Fig. 1, main body 300 is provided with drainage gathering unit 600 below multilayer screen, is equipped with the controlled valve 601 that can make drainage bleed off in the bottom of this drainage gathering unit 600, so that the water after each metafiltration sieve is filtered is collected post processing.In addition, drainage gathering unit 600 can be also transparent material, and band is useful on the scale of weighing drainage volume, so as in quantitative collection using the amount of drainage as quantitative foundation.
In addition, as above about described in the explanation of Fig. 5 (b), when screen frame and each metafiltration sieve are integrally rocked with respect to pedestal, can be as shown in the figure, funnelform drainage collector is set below orlop screen, and by flexible pipe, is connected in the funnelform drainage gathering unit 600 that falls of below.The flexible pipe that guarantees abundant length by employing connects, can only make screen frame and each metafiltration sieve integral body rock, and needn't make the larger drainage gathering unit 600 of the quality that fills drainage of below rock together, for example, therefore can reduce the load that rocks power source (crank axle device).
Similarly, when adopting as previously mentioned the aspirator of vacuum draw mode, can be as shown in Fig. 5 (c), in suction filtration case bottom, be provided for collecting and deriving the flexible pipe of drainage, airtight below the other end of flexible pipe is sealedly attached to falls funnelform drainage gathering unit 600.The flexible pipe that guarantees abundant length by employing connects, and can only make suction filtration case rock, and needn't make the larger drainage gathering unit 600 of the quality that fills drainage of below rock together, for example, therefore can reduce the load that rocks power source (crank axle device).
At this, it should be noted that, this drainage gathering unit is not necessary constitutive requirements of the present invention.
(course of work of aquatile harvester)
The following describes the overall work process of the aquatile harvester of the embodiment of the present invention.
Adopt inhale the suction force of device 100 based on suction pump 500 and from water suction containing the water that needs to be adopted object (such as plankton, zoobenthos, sand grain etc.), this water is directed to the initiating terminal of the superiors' screen 201 of classified filtering device 200 by conduit 103, and while filtering to screen tail end, flow because of the inclination of screen, the sieve aperture of screen 201 is larger, therefore through the filtration of screen 201, compared with large filtrate along with the angle of inclination of screen landing collect in basket type collector 400a.Water after the superiors' screen 201 filters flows to second layer screen 202, through the filtration of this screen 202, collects the sample of time large scale (particle diameter) in the funnel type collector 400b corresponding with this screen 202.Similarly, the water after second layer screen 202 filters continues to flow to the 3rd metafiltration sieve 203, through the filtration of this screen 203, collects the sample of reduced size (particle diameter) in the funnel type collector 400b corresponding with this screen 203.Finally, through the drainage after the filtration of the 3rd metafiltration sieve 203 enter drainage gathering unit 600, carry out as required subsequent treatment (for example directly drain, or as quantitative according to).By above process, completed the basic aquatile collecting work of the embodiment of the present invention.
At this, it should be noted that, in this specification, be to describe respectively by each part of aquatile harvester, and in the explanation of each part, its variation has been described or has improved feature, these variation and improvement feature can be carried out various combinations, and the technical scheme after combination will have the Overlay of these features.
The above, only the preferred embodiments of the present invention, not the present invention is done to any pro forma restriction, although the present invention discloses as above with preferred embodiment, yet not in order to limit the present invention, any those skilled in the art, do not departing within the scope of technical solution of the present invention, when can utilizing the technology contents of above-mentioned announcement to make a little change or being modified to the equivalent embodiment of equivalent variations, in every case be the content that does not depart from technical solution of the present invention, any simple modification of above embodiment being done according to technical spirit of the present invention, equivalent variations and modification, all throw away in the scope that belongs to technical solution of the present invention.
Claims (7)
1. zoobenthos is adopted a suction device, it is characterized in that, comprising:
Internal cavities adopt suction nozzle, there is the suction inlet of adopting, and
Conduit, is communicated with the described suction nozzle of adopting, for guide adopt suction that suction nozzle is adopted adopt suction object;
Wherein, described adopt suction nozzle described in adopt near suction inlet, be scattered with a plurality of outwards outstanding harrow nails.
2. zoobenthos as claimed in claim 1 is adopted suction device, it is characterized in that,
The described suction nozzle of adopting, for long barrel shape, has the elongated suction inlet of adopting along its length;
Described in being arranged in, adopts described harrow nail scanning direction advance side or the both sides of suction inlet.
3. zoobenthos as claimed in claim 1 is adopted suction device, it is characterized in that,
The described suction nozzle of adopting is mace shape, whole is oval tubular roughly, and one end is sealed, and the other end is communicated with described conduit, along this roughly the side circumference of oval tubular be scattered with a plurality of outstanding described harrow nails laterally, described in the space described in each between harrow nail is scattered with, adopt suction inlet.
4. zoobenthos as claimed in claim 1 is adopted suction device, it is characterized in that,
The described suction nozzle of adopting is shower nozzle shape, in the general plane of shower nozzle, is partly scattered with described a plurality of outwards outstanding harrow nail, and the space between each harrow nail is scattered with adopts suction inlet.
5. the zoobenthos as described in any one of claim 1 to 4 is adopted suction device, it is characterized in that,
Described conduit with described in adopt the sucker rod that suction nozzle is situated between by hard and be communicated with.
6. the zoobenthos as described in any one of claim 1 to 4 is adopted suction device, it is characterized in that,
Also be included in outside described conduit, with described in adopt the control stick of the hard of suction nozzle binding.
7. the zoobenthos as described in any one of claim 1 to 4 is adopted suction device, it is characterized in that,
The described gross area of adopting suction inlet and conduit and to adopt the sectional area that suction nozzle is connected suitable.
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CN108887239A (en) * | 2018-08-17 | 2018-11-27 | 哈尔滨海映天初科技有限公司 | A kind of pump suction type finishing device |
CN111263583A (en) * | 2017-10-25 | 2020-06-09 | 塔乌技术股份有限公司 | A catching tool for benthic marine organisms for catching Iceland scallops, other scallops and potentially other sub-layer species such as sea cucumber, sea urchin, other types of shellfish and crab species |
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