CN103070144A - Method and device for collecting clams at coastal mud flat - Google Patents

Method and device for collecting clams at coastal mud flat Download PDF

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Publication number
CN103070144A
CN103070144A CN2013100556272A CN201310055627A CN103070144A CN 103070144 A CN103070144 A CN 103070144A CN 2013100556272 A CN2013100556272 A CN 2013100556272A CN 201310055627 A CN201310055627 A CN 201310055627A CN 103070144 A CN103070144 A CN 103070144A
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clam
steel wire
moldboard
wire bar
plate
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钱志良
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Suzhou University
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Suzhou University
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Abstract

The invention discloses a method and device for collecting clams at a coastal mud flat. Two sides of a mould board are respectively and fixedly connected with two side plates; a steel wire fence is arranged between the two side plates; a skim board is fixedly arranged on a bracket by using bolts; the bracket is fixedly connected with the side plates by bolts; multiple connecting positions are arranged between the bracket and the side plates so as to adjust the distance between the skin board and the mould board; a clam collecting net is hung below the rear part of the steel wire fence; the lower part of the clam collecting net is supported by a support plate; and the support plate is fixedly arranged on the skim board by using screws. When a towing rope pulls a clam collecting device to plough through a silt layer; silt loosened by ploughing flows out of the steel wire fence; the clams of which the sizes are greater than the pitch of the steel wire fence are stopped by the steel wire fence; and the clams upwards roll into the clam collecting net along the inclined steel wire fence to be collected. The clam collecting device provided by the invention has the advantages of simple structure, convenience in manufacture, use and maintenance, and low price; and the provided clam collecting method is high in efficiency and broad in application prospect.

Description

A kind of method and device thereof that is applicable to coastal beach collection clam
Technical field
The invention provides a kind of method and device thereof that gathers the mosquito clam at coastal beach.
Background technology
There is long coastline in China, and there is broad beach in the outside of many seashores, the marine product that wherein is richly stored with, and clam is wherein a kind of.Clam delicious meat, nutritious also has very high dietotherapy medical value, is a kind of Shellfish product that welcome by citizen.Clam is the embedded type shellfish, be distributed near the intertidal zone of the littoral inner bay in more smooth river mouth more, and in the fine sand of neritic province domain, silt beach, the husky habit of diving is arranged, perch the degree of depth with water temperature and Individual Size and different, diving when water temperature in winter is low occupies the degree of depth and is generally 6~12cm, perches when summer, water temperature was high on the dark beach top layer of l~5cm.
The depth of water of the husky mud layer top of perching by clam is different, and the mode that clam gathers mainly contains two kinds: a kind ofly be collection under water, a kind of is the beach collection.Gather under water and refer to perching in water the collection than the clam in the husky mud layer in depths, the beach collection refers to collection that the literary composition of perching in the husky mud of the very shallow beach of water is breathed out.At present, gather under water and usually adopt the mode of mechanical work to carry out, concrete operational method is: Yi Bian power ship was ploughed the husky mud layer that clam under water perches with the shovel board of the larger string bag in tow, with High-Pressure Water the silt of ploughing the string bag is broken up on one side and leach, the larger clam of the bodily form be because can't accumulating in net by mesh, when the clam that accumulates in the net reaches some it mentioned and pours Chuan Cang into.The clam that this acquisition mode is suitable for the rich poly-district of clam or cultivating clam district gathers, and poor poly-district then should not adopt for clam, because input and output are lower; In addition, this acquisition mode also has certain destruction to the growing environment of marine product.
The beach collection normally manually gathers, and operating type has three kinds: pin is stepped on fingerprint, seeks the discrepancy water pipe vestige of clam or the gelatin matter band of secretion and plucks, by means of the collection of simple tool.Wherein, the first two is planted the visitor that artificial acquisition mode is mainly amusement and recreation and adopts, because the discrepancy water pipe vestige of many clams or the gelatin matter band of secretion can disappear very soon after the ebb, plucks whereby clam very difficult.Gathering clam by means of simple tool is present the most frequently used beach acquisition mode, and power tool is the bamboo and wood bar that an end is tied with the steel moldboard, and whole operation tool becomes " T " font, and bamboo/rod is erecting in " T " word, and the steel moldboard is the horizontal stroke in " T " word.During operation, people one are holding bamboo/rod and are falling back, and make moldboard plough the silt layer of beach, the silt layer depth of ploughing is controlled by the operating personnel, when moldboard contact clam, the operating personnel finds the existence of clam with the sensation of sound or hand, look for along moldboard with another rastellus of holding and get clam, and clam is harrowed in the string bag that is suspended on bamboo/rod.
Therefore, in beach acquisition mode commonly used at present, the clam that the operating personnel not only needs the holding operation instrument and gathered, the dilatory instrument that also need fall back makes moldboard plough the silt layer, requires great effort very much, and labour intensity is very large; In addition, moldboard plays in fact the clam detector, and when moldboard contact literary composition Kazakhstan, when making operating personnel's perception have clam, the operating personnel must stop to fall back, and looks for along moldboard with rake and gets clam, so operating efficiency is very low.For above-mentioned reasons, gather the busy season clam, assembled the personnel of a large amount of harvesting clams on some coastal beach, there is very large potential safety hazard in this, because in case forget duration of tide, or because storm, earthquake etc. when changing tide law, might cause casualties owing to having little time to withdraw.
Summary of the invention
Gather the problem that labour intensity is large, production efficiency is low that exists in order to overcome existing clam, the invention provides a kind of simple in structurely, uses laborsavingly, high efficiency is applicable to method and device thereof coastal beach collection clam.
For achieving the above object, the technical solution used in the present invention provides a kind of method that coastal beach gathers clam that is applicable to, and comprises the steps:
1, moldboard is inserted in the silt layer that the seabeach is coated with, the both sides of moldboard are fixedly connected with two side plates respectively, and steel wire bar is installed between two side plates, and grid face and the moldboard of steel wire bar are the β angle, and β is 25~35 °;
2, the Sand Skiing plate is parallel with moldboard, is fixedly mounted on the support; Support is fixedly connected with side plate by bolt, and the adjusting bolt link position changes the distance between Sand Skiing plate and the moldboard, makes the Sand Skiing plate be pressed in the upper surface of silt layer;
3, will collect the lower rear that the clam net places steel wire bar, the bottom of collection clam net is by pallet supporting, and supporting plate is fixed on the Sand Skiing plate;
4, the pulling moldboard was ploughed forward the silt layer, and the clam in the silt layer of plough pine is blocked by steel wire bar and scrolls up along steel wire bar afterwards, and rolls under mutual pushing force effect in the collection clam net;
5, from collection clam net, take out the clam that collects.
Technical solution of the present invention also comprises a kind of device that coastal beach gathers clam that is applicable to, its structure is: the both sides of moldboard are fixedly connected with two side plates respectively, steel wire bar is installed between two side plates, and grid face and the moldboard of steel wire bar are the β angle, and β is 25~35 °; The Sand Skiing plate is parallel with moldboard, is fixedly mounted on the support; Support is fixedly connected with side plate by bolt, and the adjusting bolt link position changes the distance between Sand Skiing plate and the moldboard; Collection clam net places the lower rear of steel wire bar, and the bottom of collection clam net is by pallet supporting, and supporting plate is fixed on the Sand Skiing plate.
A kind of system that is applicable to coastal beach collection clam arranges a cross bar at the rear portion of machinery, cross bar is vertical, parallel with silt layer surface with the direction of advance of machinery, and several above-mentioned clam harvesters are connected on the cross bar in uniform way by rigidity draw bar.
Because the utilization of technique scheme, compared with prior art, the present invention has the following advantages:
1, clam collecting method provided by the invention and device, only need to haul harvester by the draw rope during operation and ploughed the silt layer, just can realize the collection of clam, and in the clam gatherer process, only moldboard, steel wire bar, Sand Skiing plate plate face contact with the silt layer, resistance is less, the clams that comprise harvester deadweight and gathered etc. are by the carrying of Sand Skiing plate, use laborsavingly, and the clam collecting efficiency obviously improves than existing operating type.
2, clam collecting method provided by the invention and device can be regulated the relative position between Sand Skiing plate and the moldboard by the installation site of change support and side plate, thereby regulate the husky degree of depth of plough of moldboard, realize the collection of the latent clam in the different depth sand bed that dwells.
3, clam harvester provided by the invention, its steel wire bar by wear around steel wire form, by changing the wearing around mode of steel wire, can obtain the steel wire bar of different spacing, thereby realize the collection of different feature dimension clams.
4, clam harvester provided by the invention is simple in structure, and manufacturing, mounting, commissioning and maintenance are conveniently, and be with low cost.
Description of drawings
The structural representation of the clam harvester that Fig. 1 provides for the embodiment of the invention;
Among the figure: 1, moldboard; 2, side plate; 3, Sand Skiing plate; 4, support; 5, bracket fixing bolt; 6, steel wire bar; 7, draw rope; 8, wear filament plate; 9, U-shaped guide groove; 10, front linked network axle; 11, supporting plate; 12, collection clam net; 13, rear linked network axle.
Embodiment
The invention will be further described below in conjunction with drawings and Examples:
Embodiment one:
Drag the collection that clam harvester provided by the invention is realized clam with manpower.
Referring to accompanying drawing 1, it is the structural representation of the clam harvester that provides of the present embodiment; It comprises that the solid spiral shell of moldboard 1, side plate 2, Sand Skiing plate 3, support 4, support decide bolt 5, U-shaped guide groove 9, is worn filament plate 8, steel wire bar 6, collect clam net 12, supporting plate 11, front linked network axle 10, rear linked network axle 13, draw rope 7; 2 welding of two side plates are fixed respectively at the two ends of moldboard 1, and U-shaped guide groove 9 is welded on the top of side plate 2, wears filament plate 8 and is inserted in the U-shaped guide groove 9; Steel wire bar 6 is being worn between filament plate 8 and the moldboard 1, and steel wire wherein is parallel with side plate 2; Sand Skiing plate 3 is fixed by bolts on the support 4, and support 4 is fixedly connected with side plate 2 by bracket fixing bolt 5 again; The end of front linked network axle 10 and rear linked network axle 13 is shaped with screw thread, and is fixedly connected with side plate 2 by nut; Collection clam net 12 tops hang on the two linked network axles in front and back, and the bottom is by supporting plate 11 supportings, and supporting plate 11 is screwed on Sand Skiing plate 3.When draw rope 7 hauled the clam harvester and ploughed the silt layer, the silt of plough pine passed through from steel wire bar 6, and the clam that body is larger than steel wire bar pitch is stopped by steel wire bar, upwards rolled into collection clam net 12 along the steel wire bar that tilts, and realized the collection of clam.
The technical scheme that the present embodiment provides, the design feature of the weldment of moldboard 1 and two side plates 2 is: two side plate 2 symmetries be vertically welded in moldboard 1 two ends, U-shaped guide groove 9 is welded near side plate 2 lower sides, the direction of U-shaped guide groove 9 makes to wear and wears filament plate 8 around (being inserted in the guide groove) and become 25~35 ° of angles of β with steel wire bar grid face between the moldboard 1 with moldboard 1 plough face, be slightly larger than literary composition along the vertical height to the plough face on the U-shaped guide groove 9 and breathe out the maximum that harvester is ploughed husky depth H, side plate 2 lower sides become ° (namely 22~33 °) angle, β-(2~3) with moldboard 1 plough face.Adopt this structure, under suitable steel wire bar angle of inclination beta, when moldboard 1 was ploughed the silt layer with certain speed, can automatically scroll up along steel wire bar 6 after the clam in the silt layer of plough pine is blocked by steel wire bar 6, and under mutual pushing force effect, finally roll into collection clam net 12.
The technical scheme that the present embodiment provides, the design feature of steel wire bar is: moldboard and a side of wearing filament plate are along being shaped with equidistant aperture, pitch of holes D(5~15) mm, steel wire is worn around moldboard 1 and is worn and forms the steel wire bar parallel with side plate 2 between the filament plate 8; Wear when steel wire, can every hole or a n hole wear silk, (steel wire bar of mm of D * n) is with the feature dimension of the control clam that gathered to form space D mm or spacing.
The technical scheme that the present embodiment provides, the characteristics of Sand Skiing plate are: the Sand Skiing plate is fixed by bolts on the support, and support is fixed by bolts on the side plate, and Sand Skiing plate plate face is parallel with moldboard plough face; Being used for support bracket fastened bolt hole on the side plate has some groups of different positions, and the installation site of support is different, and Sand Skiing plate plate face is also different to the distance of plough face, thereby control clam harvester is ploughed the husky degree of depth.
Manpower drags the clam harvester by draw rope 7 and ploughed the silt layer with speed V.The vertical pulling force that the pulling force P of draw rope 7 can resolve into horizontal pull and make progress, horizontal pull drags on the one hand harvester and moves ahead, the trend that makes moldboard 1 plough enter darker silt layer is arranged on the other hand, and this trend obtains balance by the upward component of Sand Skiing plate 3 and pulling force P.
When moldboard 1 was ploughed the silt layer, the silt of being ploughed pine flowed out from steel wire bar 6, and wherein body is stopped by steel wire bar 6 greater than the clam of steel wire bar pitch, scrolls up along steel wire bar 6.If disregard the deadweight of clam, the motion of clam is mainly determined by following two power: during the relative sediment movement of clam suffered silt to the frictional resistance F of clam, steel wire in the steel wire bar 6 to the counter-force N of clam.If the angle between steel wire bar 6 and the moldboard 1 plough face is β, then the horizontal component of counter-force N and vertical component are respectively Nsin β and Ncos β.Obviously, can move upward along steel wire bar 6 for making clam, i.e. oblique top-right motion in the accompanying drawing 1, the horizontal component Nsin β of N must be less than resistance F, as the formula (1):
Figure 2013100556272100002DEST_PATH_IMAGE001
(1)
The vertical component Ncos β of N must be greater than F, as the formula (2):
Figure 2013100556272100002DEST_PATH_IMAGE002
(2)
Be that clam is wanted to move upward along steel wire bar 6 to satisfy formula (3):
Figure 2013100556272100002DEST_PATH_IMAGE003
(3)
Because counter-force N can not reach less than zero
Figure 2013100556272100002DEST_PATH_IMAGE004
, formula (3) is equal to
Figure 2013100556272100002DEST_PATH_IMAGE005
, or formula (4):
Figure 2013100556272100002DEST_PATH_IMAGE006
(4)
For guaranteeing that clam can scroll up smoothly, and can push the clam that accumulates in top into collection clam net 12, the present invention gets β=25~35 °.
When using said apparatus to gather clam, first moldboard is inserted in the silt layer that the seabeach is coated with, the both sides of moldboard are fixedly connected with two side plates respectively, and steel wire bar is installed between two side plates, and grid face and the moldboard of steel wire bar are the β angle, and β is 25~35 °; Make the Sand Skiing plate parallel with moldboard, be fixedly mounted on the support; Support is fixedly connected with side plate by bolt, and the adjusting bolt link position changes the distance between Sand Skiing plate and the moldboard, makes the Sand Skiing plate be pressed in the upper surface of silt layer; To collect the lower rear that the clam net places steel wire bar again, the bottom of collection clam net is by pallet supporting, and supporting plate is fixed on the Sand Skiing plate; The pulling moldboard was ploughed forward the silt layer, and the clam in the silt layer of plough pine is blocked by steel wire bar and scrolls up along steel wire bar afterwards, and rolls under mutual pushing force effect in the collection clam net; From collection clam net, take out the clam that collects.
Embodiment two:
Drag the collection that clam harvester provided by the invention is realized clam with machinery.
The suitable height and position in machinery rear portion arranges a cross bar, cross bar is vertical, parallel with silt layer surface with the direction of advance of machinery, the clam harvester that several embodiment one provide is connected on the cross bar by rigidity draw bar in uniform way, adopt rigidity draw bar to connect cross bar and clam harvester, its Main Function, the one, when travelling, mechanical non-rectilinear can keep the clam harvester direction of motion consistent with the direction of motion of machinery; It two makes to pull at several clam harvesters on the cross bar and can keep evenly distributing in motion process.

Claims (3)

1. one kind is applicable to the method that coastal beach gathers clam, it is characterized in that: comprise the steps:
(1) moldboard is inserted in the silt layer that the seabeach is coated with, the both sides of moldboard are fixedly connected with two side plates respectively, and steel wire bar is installed between two side plates, and grid face and the moldboard of steel wire bar are the β angle, and β is 25~35 °;
(2) the Sand Skiing plate is parallel with moldboard, is fixedly mounted on the support; Support is fixedly connected with side plate by bolt, and the adjusting bolt link position changes the distance between Sand Skiing plate and the moldboard, makes the Sand Skiing plate be pressed in the upper surface of silt layer;
(3) will collect the lower rear that the clam net places steel wire bar, the bottom of collection clam net is by pallet supporting, and supporting plate is fixed on the Sand Skiing plate;
(4) the pulling moldboard was ploughed forward the silt layer, and the clam in the silt layer of plough pine is blocked by steel wire bar and scrolls up along steel wire bar afterwards, and rolls under mutual pushing force effect in the collection clam net;
(5) from collection clam net, take out the clam that collects.
2. one kind is applicable to the device that coastal beach gathers clam, and it is characterized in that: the both sides of moldboard are fixedly connected with two side plates respectively, and steel wire bar is installed between two side plates, and grid face and the moldboard of steel wire bar are the β angle, and β is 25~35 °; The Sand Skiing plate is parallel with moldboard, is fixedly mounted on the support; Support is fixedly connected with side plate by bolt, and the adjusting bolt link position changes the distance between Sand Skiing plate and the moldboard; Collection clam net places the lower rear of steel wire bar, and the bottom of collection clam net is by pallet supporting, and supporting plate is fixed on the Sand Skiing plate.
3. one kind is applicable to the system that coastal beach gathers clam, it is characterized in that: a cross bar is set at the rear portion of machinery, cross bar is vertical, parallel with silt layer surface with the direction of advance of machinery, and several are connected on the cross bar by rigidity draw bar in uniform way by clam harvester claimed in claim 2.
CN2013100556272A 2013-02-21 2013-02-21 Method and device for collecting clams at coastal mud flat Pending CN103070144A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103098768A (en) * 2013-01-29 2013-05-15 中国水产科学研究院东海水产研究所 Simple device for fishing and catching clams
CN103493790A (en) * 2013-09-17 2014-01-08 中国船舶重工集团公司第七一〇研究所 Shovel type deep-sea creature sampler
CN105875539A (en) * 2016-05-09 2016-08-24 浙江省海洋水产研究所 Harvesting device of clam worms
CN106259226A (en) * 2016-08-17 2017-01-04 国家海洋局第海洋研究所 A kind of Conch Meretricis seu Cyclinae harvester
CN107006439A (en) * 2017-05-31 2017-08-04 福建农林大学 A kind of beach is multi-functional to adopt razor clam car and its application method
CN110024756A (en) * 2019-05-26 2019-07-19 江西悦丰农业科技有限公司 A kind of sandy beach shell collecting machine
CN110058308A (en) * 2018-07-09 2019-07-26 南方科技大学 A kind of method, system and the terminal device of intertidal zone seismic prospecting

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CN85102539A (en) * 1985-04-01 1985-12-20 陈鸿林 Being used to adopt shellfish particularly adopts the ship of razor clam and drags shellfish harvester
GB2252575A (en) * 1991-02-05 1992-08-12 Denis Kelly Separating device for fishing dredge
CN201248325Y (en) * 2008-08-26 2009-06-03 陈德金 Razor clam harvesting machine
WO2011031075A2 (en) * 2009-09-09 2011-03-17 Kang Jung Hwan Underwater dredge for gathering shellfish
CN102599123A (en) * 2012-04-06 2012-07-25 林孔焰 Shellfish collecting device
CN202496311U (en) * 2012-03-05 2012-10-24 福州百特节能科技有限公司 Shellfish product harvesting machine
CN202551937U (en) * 2012-04-06 2012-11-28 林孔焰 Shellfish harvest device
CN102812935A (en) * 2012-09-04 2012-12-12 阳江市高级技工学校 Mudflat shellfish collecting device

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN85102539A (en) * 1985-04-01 1985-12-20 陈鸿林 Being used to adopt shellfish particularly adopts the ship of razor clam and drags shellfish harvester
GB2252575A (en) * 1991-02-05 1992-08-12 Denis Kelly Separating device for fishing dredge
CN201248325Y (en) * 2008-08-26 2009-06-03 陈德金 Razor clam harvesting machine
WO2011031075A2 (en) * 2009-09-09 2011-03-17 Kang Jung Hwan Underwater dredge for gathering shellfish
WO2011031075A3 (en) * 2009-09-09 2011-07-14 Kang Jung Hwan Underwater dredge for gathering shellfish
CN202496311U (en) * 2012-03-05 2012-10-24 福州百特节能科技有限公司 Shellfish product harvesting machine
CN102599123A (en) * 2012-04-06 2012-07-25 林孔焰 Shellfish collecting device
CN202551937U (en) * 2012-04-06 2012-11-28 林孔焰 Shellfish harvest device
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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103098768A (en) * 2013-01-29 2013-05-15 中国水产科学研究院东海水产研究所 Simple device for fishing and catching clams
CN103098768B (en) * 2013-01-29 2014-07-30 中国水产科学研究院东海水产研究所 Simple device for fishing and catching clams
CN103493790A (en) * 2013-09-17 2014-01-08 中国船舶重工集团公司第七一〇研究所 Shovel type deep-sea creature sampler
CN103493790B (en) * 2013-09-17 2015-01-07 中国船舶重工集团公司第七一〇研究所 Shovel type deep-sea creature sampler
CN105875539A (en) * 2016-05-09 2016-08-24 浙江省海洋水产研究所 Harvesting device of clam worms
CN106259226A (en) * 2016-08-17 2017-01-04 国家海洋局第海洋研究所 A kind of Conch Meretricis seu Cyclinae harvester
CN106259226B (en) * 2016-08-17 2020-05-08 国家海洋局第一海洋研究所 Clam harvester
CN107006439A (en) * 2017-05-31 2017-08-04 福建农林大学 A kind of beach is multi-functional to adopt razor clam car and its application method
CN110058308A (en) * 2018-07-09 2019-07-26 南方科技大学 A kind of method, system and the terminal device of intertidal zone seismic prospecting
CN110058308B (en) * 2018-07-09 2020-11-06 南方科技大学 Intertidal zone seismic exploration method and system and terminal equipment
CN110024756A (en) * 2019-05-26 2019-07-19 江西悦丰农业科技有限公司 A kind of sandy beach shell collecting machine

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Application publication date: 20130501