CN110495429B - Artificial substrate benthonic animal collection system - Google Patents
Artificial substrate benthonic animal collection system Download PDFInfo
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- CN110495429B CN110495429B CN201910794271.1A CN201910794271A CN110495429B CN 110495429 B CN110495429 B CN 110495429B CN 201910794271 A CN201910794271 A CN 201910794271A CN 110495429 B CN110495429 B CN 110495429B
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- 239000000758 substrate Substances 0.000 title claims abstract description 14
- 241001465754 Metazoa Species 0.000 title claims description 32
- 210000000078 claw Anatomy 0.000 claims description 41
- 230000009471 action Effects 0.000 claims description 5
- 230000005484 gravity Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 24
- 238000005070 sampling Methods 0.000 abstract description 10
- 238000005406 washing Methods 0.000 abstract description 4
- 238000007789 sealing Methods 0.000 abstract description 3
- 230000008859 change Effects 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000002421 anti-septic effect Effects 0.000 description 1
- 239000012237 artificial material Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K69/00—Stationary catching devices
- A01K69/02—Fixed nets without traps
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
- G01N33/186—Water using one or more living organisms, e.g. a fish
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- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Environmental Sciences (AREA)
- Medicinal Chemistry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Animal Husbandry (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Catching Or Destruction (AREA)
Abstract
The utility model provides an artificial substrate zoobenthos collection system, is including gathering the cage, gathers the cage and comprises bottom surface and circular lateral wall, and circular lateral wall is including opening and sealing two states, when putting in collection system, places artificial substrate in the cage to seal the cage lateral wall, collection system reaches submarine back, opens the cage lateral wall, makes things convenient for zoobenthos's entering, when retrieving collection system, mentions the device again behind the closed cage lateral wall. The device can be opened and closed according to needs, so that the loss of artificial matrixes can be effectively reduced when the collection device is put in, the washing of water flow to the samples can be reduced when the collection device is recovered, the loss of the samples is prevented, and the sampling accuracy is improved.
Description
Technical Field
The invention belongs to the technical field of water ecology monitoring equipment, and particularly relates to an artificial substrate benthonic animal collecting device.
Technical Field
The benthonic animals refer to organisms living at the bottom of a water body in all or most of the life history, and are important constituent biological groups of a water area ecosystem, most of the benthonic animals have the characteristics of strong regionality, weak migration capability and the like due to living in bottom mud for a long time, the life is relatively stable, the avoidance capability of environmental pollution and change is generally poor, the response to environmental change is sensitive, the types, the quantity and the community structure of the benthonic animals can be changed along with the change of water quality, the pollution condition of the water quality of the living environment of the benthonic animals can be objectively and accurately reflected by utilizing parameters such as the population structure, the dominant species and the quantity of the benthonic animals, and the benthonic animals are indicative organisms for evaluating. Benthonic animals have been widely studied in various water environment pollution conditions such as oceans and rivers.
At present, most domestic and foreign benthonic animal investigation methods are only suitable for shallow lakes and small and medium-sized rivers, and for benthonic animal collection in deep water reservoirs and large rivers, a plurality of methods and tools (such as mud collectors) are small in sample quantity, and investigation data is not very accurate due to the influence of factors such as the technology of sampling personnel, sampling frequency and the like. Patent document CN207219872U discloses a benthonic animal colonization device, which selects firm and antiseptic artificial materials, has high stability, is not easily interfered by environmental changes in sample collection, provides a longer time for the colonization of benthonic animals, collects samples when the colonization is saturated, has high diversity and reliable data of the obtained benthonic animals, and solves the problem of difficult sampling of large rivers for long-term ecological monitoring of the benthonic animals. Patent document (CN105424400A) discloses a combined sampling device suitable for deep water bodies and capable of simultaneously collecting benthonic animals and periphyton, which comprises a cage body and a cage cover, wherein the cage body comprises an inner layer cage body and an outer layer cage body, an artificial substrate for collecting benthonic animals is placed in the inner layer cage body, and a glass slide for collecting periphyton and a PFU block for collecting periphyton are placed in an annular space formed by the outer layer cage body and the inner layer cage body; the bottoms of the inner layer cage body and the outer layer cage body are connected through a plurality of welding iron rods. The invention has the advantages of simple material, convenient preparation and low cost; the device is flexible and can be changed according to the actual sampling requirement; the disturbance to the environment of the bottom layer of the water body is small; the collecting effect on benthonic animals and periphyton in the deep water body is better. However, both of the above-mentioned devices have the same problem, when the sampling device is lifted up, the washing of the water flow and the disturbance during recovery can cause the loss of a large amount of samples, especially for rivers with relatively urgent water flow, a large amount of benthonic animals can be washed away during the recovery device, and the accuracy of sampling is seriously affected.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide an artificial substrate benthonic animal collecting device which adopts a cylindrical cage structure and comprises a bottom surface and a circular side wall, wherein the circular side wall comprises an opening state and a closing state. The device can be opened and closed according to needs, so that the loss of artificial matrixes can be effectively reduced when the collection device is put in, the washing of water flow to the samples can be reduced when the collection device is recovered, the loss of the samples is prevented, and the sampling accuracy is improved.
In order to achieve the purpose, the invention adopts the technical scheme that: an artificial substrate benthonic animal collecting device comprises a collecting cage and a recovery rope; the collecting cage is used for being thrown into water to collect benthonic animals and comprises a bottom surface and a side wall; the sidewall comprises a plurality of cage leaves; the cage leaves are of a shutter structure, each cage leaf is fixed on the side wall of the collecting cage in a rotatable mode, and the opening and closing of the side wall of the cage are realized through the rotation of the cage leaves;
cage leaf fixing pieces are arranged at two ends of each cage leaf; the side wall is provided with a rotating shaft, two control ropes, namely a control rope I and a control rope II, are fixed on the rotating shaft, and the rotating shaft can be controlled to rotate by pulling the control rope I and the control rope II; two traction ropes, namely a traction rope I and a traction rope II, are fixed on the rotating shaft; the first traction rope and the second traction rope are connected with each cage leaf through the cage leaf fixing piece, the rotating shaft rotates to drive the first traction rope, and the second traction rope moves to drive the cage leaves to rotate.
An openable cage cover is arranged at the top of the collecting cage.
A water leakage net is arranged at the upper part of the collecting cage; the water leakage net adopts a stainless steel screen mesh with 40 meshes.
The size of the collecting cage is as follows: the diameter is 18-24cm, and the height is 25-35 cm.
The collecting cage is also provided with a mark which is a buoy.
An artificial substrate benthonic animal collecting device comprises a collecting cage, wherein the collecting cage consists of an outer cage and an inner cage; the inner cage is sleeved in the outer cage and can rotate relative to the outer cage; the side walls of the outer cage and the inner cage respectively comprise cage leaves arranged at intervals, and the relative positions of the cage leaves on the side wall of the inner cage relative to the cage leaves on the side wall of the outer cage can be adjusted by rotating the inner cage, so that the side walls are closed and opened; when the positions of the cage leaves of the inner cage and the outer cage are completely staggered, the side wall is closed, the inner cage rotates relative to the outer cage, the positions of the cage leaves change, gaps appear between the cage leaves of the inner cage and the cage leaves of the outer cage, and the side wall is opened.
The inner cage is connected with a driving device, and the driving device drives the inner cage to rotate; the driving device comprises a pull rod piece, a sliding rail piece, a sliding claw piece, a driving gear and a driven gear;
the sliding rail piece and the pull rod piece are arranged on the bottom surface of the outer cage; the driving gear is fixedly arranged on the sliding claw piece, and the driven gear is fixedly arranged on the inner cage;
the pull rod piece is fixed with the pull rope, the pull rope is pulled upwards, the pull rod piece moves upwards, sliding teeth on the pull rod piece abut against teeth below the sliding claw piece to drive the sliding claw piece to move upwards, the teeth below the sliding claw piece slide relative to the sliding teeth on the pull rod piece to drive the sliding claw piece to rotate, the sliding claw piece rotates to drive the driving gear to rotate, the driving gear drives the driven gear to rotate, and the driven gear drives the inner cage to rotate; after the pull rod piece is released, the sliding claw piece moves downwards under the action of gravity, and after the sliding claw piece is contacted with the sliding rail piece, teeth below the sliding claw piece slide relatively under the action of upper teeth on the sliding rail piece to drive the sliding claw piece to rotate for a certain angle again, and the sliding claw piece rotates to drive the inner cage to rotate through a gear structure; the driving gear is fixedly arranged on the sliding claw piece, the driven gear is fixedly arranged on the inner cage, the sliding claw piece rotates to drive the driving gear to rotate, the driving gear drives the driven gear to rotate, and the driven gear drives the inner cage to rotate.
The outer cage and the inner cage are respectively provided with 36 cage leaves, the inner cage rotates by 10 degrees once the pull rod piece is pulled, the inner cage leaves and the outer cage leaves are overlapped and staggered through pulling the pull rod piece, and the side walls are closed and opened.
The beneficial effects of the invention are as follows:
this device adopts the cage structure, and it is cylindric, including bottom surface and circular lateral wall, circular lateral wall is including opening and sealing two states, and it includes a plurality of mobilizable cage leaves, can realize the closure of cage lateral wall through the activity of cage leaf, when putting in collection system, places artificial substrate in the cage to seal the cage lateral wall, collection system reaches submarine back, opens the cage lateral wall, makes things convenient for the entering of benthonic animal, when retrieving collection system, mentions the device again behind the closed cage lateral wall. The device can be opened and closed according to needs, so that the loss of artificial matrixes can be effectively reduced when the collection device is put in, the washing of water flow to the samples can be reduced when the collection device is recovered, the loss of the samples is prevented, and the sampling accuracy is improved.
Drawings
Fig. 1(a) is a schematic structural diagram of an acquisition cage according to embodiment 1 of the present invention when the acquisition cage is opened.
Fig. 1(b) is a schematic structural view of the closed collection cage of fig. 1(a) according to the present invention.
Fig. 2 is a schematic structural view of a cage leaf in embodiment 2 of the present invention.
Fig. 3(a) is a schematic structural diagram of an acquisition cage according to embodiment 2 of the present invention when the acquisition cage is opened.
Fig. 3(b) is a schematic structural view of the closed collection cage of fig. 3(a) according to the present invention.
Fig. 4 is a schematic structural diagram of an inner cage driving part in embodiment 2 of the present invention.
In the figure, the collecting cage 1, the bottom surface 2, the cage cover 3, the cage leaves 4, the cage leaf fixing piece 5, the rotating shaft 6, the first control rope 71, the second control rope 72, the first traction rope 81, the second traction rope 82, the outer cage 9, the inner cage 10, the driving device 11, the pull rod piece 111, the pull rope 1111, the sliding tooth 1112, the slide rail piece 112, the upper tooth 1121 on the slide rail piece 112, the sliding claw piece 113 and the tooth 1131 below the sliding claw piece 113 are arranged.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 1(a) - (b), an artificial substrate benthonic animal collecting device comprises a collecting cage 1 and a recovery rope; the collecting cage 1 is used for being put into water to collect benthonic animals, and the collecting cage 1 comprises a bottom surface 2 and a side wall; the side wall comprises a plurality of cage leaves 4, and the closing and the opening of the side wall are realized through the movement of the cage leaves. The collecting cage is cylindrical.
As shown in fig. 2, the cage leaves 4 are of a louver structure, each cage leaf 4 is rotatably fixed on a side wall of the collecting cage 1, and the opening and closing of the cage side wall are realized through the rotation of the cage leaf 4. When putting in collection cage 1, place artifical matrix in collection cage 1 to seal the lateral wall of gathering cage 1, gather cage 1 and reach submarine back, open the lateral wall, make things convenient for the entering of benthonic animal, when retrieving collection system, will gather cage 1 after sealing the lateral wall and lift up again. Cage leaf fixing parts 5 are arranged at two ends of each cage leaf 4; a rotating shaft 6 is arranged on the side wall, two control ropes, namely a control rope I71 and a control rope II 72, are fixed on the rotating shaft 6, and the rotating shaft 6 can be controlled to rotate by pulling the control rope I71 and the control rope II 72; pulling the first control rope 71 to enable the rotating shaft 6 to rotate to the closed position, pulling the second control rope 72 to enable the rotating shaft 6 to rotate to the open position; two traction ropes, namely a traction rope I81 and a traction rope II 82, are fixed on the rotating shaft 6; the first traction rope 81 and the second traction rope 82 are connected with each cage leaf 4 through the cage leaf fixing piece 5, the rotating shaft 6 rotates to drive the first traction rope 81 and the second traction rope 82 to move, so that the cage leaves 4 are driven to rotate, and the closing and opening of the cage leaves 4 are realized; pulling the control rope I71, rotating the rotating shaft 6 to a closed position, pulling the traction rope I81 by the rotation of the rotating shaft 6, and pulling the cage leaf 4 to a closed position by the traction rope I81; and pulling the second control rope 72, rotating the rotating shaft 6 to an opening position, pulling the pulling rope 81 by the rotation of the rotating shaft 6, pulling the cage leaf 4 to an opening position by the pulling rope 81, pulling the first control rope 71 again, and returning the rotating shaft 6 to a closing position.
The collecting cage 1 further comprises a cage cover 3, the cage cover 3 can be opened, and an artificial substrate can be placed conveniently after the cage cover 3 is opened.
The upper part of the collecting cage 1 is provided with a water leakage net for water to enter and exit. The water leakage net adopts a stainless steel screen with 40 meshes, water can pass in and out through the screen with 40 meshes, but the benthonic animals cannot escape.
The collecting cage 1 is made of 304 type stainless steel.
The size of the collecting cage 1 is as follows: the diameter is 18-24cm, and the height is 25-35 cm.
Gather and still be equipped with the sign on the cage 1 for the position of sign collection cage 1 on the surface of water, the sign can be the buoy, is in gather on the cage 1.
Example 2
The present invention provides another embodiment of a cage sidewall. As shown in fig. 3(a) - (b), the collecting cage 1 includes an outer cage 9 and an inner cage 10, and the inner cage 10 is sleeved in the outer cage 9 and can rotate relative to the outer cage 9; the lateral wall of outer cage 9 and interior cage 10 all includes the cage leaf 4 that the interval set up, and the relative position of cage leaf on the cage 10 lateral wall for the cage leaf on the 9 lateral walls of outer cage in can adjusting through cage 10 in rotatory realizes the closure and opening of lateral wall, and when interior cage 10 staggers completely with 9 cage leaf positions of outer cage, the lateral wall seals, and interior cage 10 is rotatory relatively outer cage 9, and cage leaf position changes, appears the gap between the cage leaf of interior cage 10 and the cage leaf of outer cage 9, and the opening appears in the lateral wall. . When putting in collection system, place artifical matrix in the cage to seal the cage lateral wall, collection system reaches submarine back, opens the cage lateral wall, makes things convenient for the entering of benthonic animal, when retrieving collection system, mentions the device again behind the closed cage lateral wall.
Referring to fig. 4, the inner cage 10 is connected to a driving device 11, and the driving device 11 drives the inner cage 10 to rotate; the driving device 11 comprises a pull rod piece 111, a slide rail piece 112, a slide claw piece 113, a driving gear and a driven gear;
the slide rail piece 112 and the pull rod piece 111 are arranged on the bottom surface of the outer cage 9; the driving gear is fixedly arranged on the sliding claw piece 113, and the driven gear is fixedly arranged on the inner cage 10;
the pull rod 111 is fixed with a pull rope 1111, the pull rope 1111 is pulled upwards, the pull rod 111 moves upwards, a sliding tooth 1112 on the pull rod 111 abuts against a tooth 1131 below the sliding claw member 113 to drive the sliding claw member 113 to move upwards, the tooth 1131 below the sliding claw member 113 slides relative to the sliding tooth 1112 on the pull rod 111, so as to drive the sliding claw member 113 to rotate, the sliding claw member 113 rotates to drive the driving gear to rotate, the driving gear drives the driven gear to rotate, and the driven gear drives the inner cage 10 to rotate; after the rod pulling member 111 is released, the sliding claw member 113 moves downward due to gravity, and after contacting the sliding rail member 112, the tooth 1131 below the sliding claw member 113 slides relatively under the action of the upper tooth 1121 on the sliding rail member 112, so as to drive the sliding claw member 113 to rotate a certain angle again, and the sliding claw member 113 rotates to drive the inner cage 10 to rotate through the gear structure. The driving gear is fixedly arranged on the sliding claw piece 113, the driven gear is fixedly arranged on the inner cage 10, the sliding claw piece 113 rotates to drive the driving gear to rotate, the driving gear drives the driven gear to rotate, and the driven gear drives the inner cage 10 to rotate. The side walls of the outer cage 9 and the inner cage 10 are respectively provided with 36 cage leaves, when the pull rod piece is pulled once, the inner cage 10 rotates by 10 degrees, and the inner cage 10 and the outer cage 9 are overlapped and staggered through pulling the pull rod piece, so that the side walls are closed and opened.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (2)
1. An artificial substrate benthonic animal collecting device is characterized by comprising a collecting cage (1), wherein the collecting cage (1) consists of an outer cage (9) and an inner cage (10); the inner cage (10) is sleeved in the outer cage (9) and can rotate relative to the outer cage (9); the side walls of the outer cage (9) and the inner cage (10) respectively comprise cage leaves (4) arranged at intervals, the relative positions of the cage leaves on the side wall of the inner cage (10) relative to the cage leaves on the side wall of the outer cage (9) can be adjusted by rotating the inner cage (10), the closing and opening of the side wall are realized, when the positions of the inner cage (10) and the cage leaves of the outer cage (9) are completely staggered, the side wall is closed, the inner cage (10) rotates relative to the outer cage (9), the positions of the cage leaves are changed, gaps are formed between the cage leaves of the inner cage (10) and the cage leaves of the outer cage (9), and the side wall is opened;
the inner cage (10) is connected with a driving device (11), and the driving device (11) drives the inner cage (10) to rotate; the driving device (11) comprises a pull rod piece (111), a slide rail piece (112), a sliding claw piece (113), a driving gear and a driven gear;
the sliding rail piece (112) and the pull rod piece (111) are arranged on the bottom surface of the outer cage (9); the driving gear is fixedly arranged on the sliding claw piece (113), and the driven gear is fixedly arranged on the inner cage (10);
a pull rope (1111) is fixed on the pull rod piece (111), the pull rope (1111) is pulled upwards, the pull rod piece (111) moves upwards, a sliding tooth (1112) on the pull rod piece (111) abuts against a tooth 1131 below the sliding claw piece (113) to drive the sliding claw piece (113) to move upwards, the tooth (1131) below the sliding claw piece (113) slides relative to the sliding tooth (1112) on the pull rod piece (111), so that the sliding claw piece (113) is driven to rotate, the sliding claw piece (113) rotates to drive the driving gear to rotate, the driving gear drives the driven gear to rotate, and the driven gear drives the inner cage (10) to rotate; after the rod pulling piece (111) is placed, the sliding claw piece (113) moves downwards under the action of gravity, after the sliding claw piece (113) is contacted, teeth (1131) below the sliding claw piece (113) slide relatively under the action of upper teeth (1121) on the sliding rail piece (112) to drive the sliding claw piece (113) to rotate for a certain angle again, and the sliding claw piece (113) rotates to drive the inner cage (10) to rotate through a gear structure.
2. The artificial substrate benthonic animal collection device according to claim 1, wherein 36 cage leaves are respectively arranged on the side walls of the outer cage (9) and the inner cage (10), the inner cage (10) rotates by 10 degrees every time the pull rod piece is pulled, and the cage leaves of the inner cage (10) and the cage leaves of the outer cage (9) are overlapped and staggered to realize the closing and opening of the side walls by pulling the pull rod piece.
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| CN201910794271.1A CN110495429B (en) | 2019-08-27 | 2019-08-27 | Artificial substrate benthonic animal collection system |
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| CN201910794271.1A CN110495429B (en) | 2019-08-27 | 2019-08-27 | Artificial substrate benthonic animal collection system |
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| CN110495429B true CN110495429B (en) | 2021-05-18 |
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| CN112894169B (en) * | 2021-02-19 | 2022-12-06 | 西安石油大学 | Laser cutting machine for two-dimensional semiconductor photoelectric device |
| CN113645390B (en) * | 2021-08-20 | 2023-07-21 | 重庆交通大学 | River benthonic animal investigation statistical means |
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| GB729114A (en) * | 1950-08-24 | 1955-05-04 | John Chant | Improvements in or relating to apparatus for spreading and controlling trawl nets and the like |
| CN2037532U (en) * | 1988-09-15 | 1989-05-17 | 刘爱华 | Trap for catching shrimps and small fishes |
| CN1419408A (en) * | 2000-02-02 | 2003-05-21 | 考蒂动物园技术有限公司 | Feed box for breeding poultry |
| CN101487373A (en) * | 2009-02-15 | 2009-07-22 | 张一飞 | Lifting type anti-theft shutter |
| CN206453029U (en) * | 2017-02-10 | 2017-09-01 | 黑龙江省环境监测中心站 | A kind of benthic macroinverte- brate collector |
| CN110074017A (en) * | 2019-06-05 | 2019-08-02 | 袁吉祥 | A kind of reading intelligent agriculture bee raising system |
-
2019
- 2019-08-27 CN CN201910794271.1A patent/CN110495429B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB729114A (en) * | 1950-08-24 | 1955-05-04 | John Chant | Improvements in or relating to apparatus for spreading and controlling trawl nets and the like |
| CN2037532U (en) * | 1988-09-15 | 1989-05-17 | 刘爱华 | Trap for catching shrimps and small fishes |
| CN1419408A (en) * | 2000-02-02 | 2003-05-21 | 考蒂动物园技术有限公司 | Feed box for breeding poultry |
| CN101487373A (en) * | 2009-02-15 | 2009-07-22 | 张一飞 | Lifting type anti-theft shutter |
| CN206453029U (en) * | 2017-02-10 | 2017-09-01 | 黑龙江省环境监测中心站 | A kind of benthic macroinverte- brate collector |
| CN110074017A (en) * | 2019-06-05 | 2019-08-02 | 袁吉祥 | A kind of reading intelligent agriculture bee raising system |
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