CN110823643A - Time-sharing sampling system for dynamic water quality detection and sampling method thereof - Google Patents
Time-sharing sampling system for dynamic water quality detection and sampling method thereof Download PDFInfo
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- CN110823643A CN110823643A CN201911124294.8A CN201911124294A CN110823643A CN 110823643 A CN110823643 A CN 110823643A CN 201911124294 A CN201911124294 A CN 201911124294A CN 110823643 A CN110823643 A CN 110823643A
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Abstract
The invention discloses a time-sharing sampling system and a sampling method for dynamic water quality detection, wherein the time-sharing sampling system for dynamic water quality detection comprises a frame body, a traction table, a sampler and a rope body; the frame bodies are arranged on two banks of the target water area in pairs; two ends of the rope body are respectively connected with the traction tables on two banks of the target water area; the sampler is hung on the rope body and moves back and forth along the length direction of the rope body; the sampler comprises a sample storage cavity and a pump body; pumping a water sample in a target water area into a sample storage cavity by using a pump body; the sample storage cavity comprises a plurality of annularly spliced isolation chambers, and the pumped and sent water samples are stored separately at different time by utilizing the rotation of the isolation chambers; the isolation room realizes position stabilization in the water sample collection process by utilizing a lower end superposition structure and a double-rope fixing structure of the Contraband-shaped structure; and the flexible floating-sinking type water inlet port is utilized, the acquisition coverage range is expanded, and the adaptive capacity of the operation environment is improved.
Description
Technical Field
The invention relates to the field of water quality detection, in particular to a time-sharing sampling system for dynamic water quality detection and a sampling method thereof.
Background
Water quality testing often needs to deal with topography such as river course, blowdown ditch, and traditional showy formula collection equipment position is difficult to freely remove, and its stability and flexibility are relatively poor. Therefore, the time-sharing sampling system for dynamic water quality detection with strong structural stability and high operational reliability needs to be invented.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects in the prior art, the invention provides the time-sharing sampling system for dynamic water quality detection, which has strong structural stability and high operational reliability.
The technical scheme is as follows: in order to achieve the purpose, the time-sharing sampling system for dynamic water quality detection comprises a frame body, a traction table, a sampler and a rope body; the frame bodies are arranged on two banks of the target water area in pairs; two ends of the rope body are respectively connected with the traction tables on two banks of the target water area; the sampler is hung on the rope body and moves back and forth along the length direction of the rope body;
the sampler comprises a shell, a sample storage cavity and a pump body; the inlet end of the pump body is communicated with a first conveying pipe; one end of the first delivery pipe, which is far away from the pump body, extends downwards into a region below the liquid level of the target water area; a second conveying pipe is communicated with the outlet end of the pump body; the sample storage cavity is arranged in the shell in a rotating fit manner; the sample storage cavity comprises a plurality of isolation chambers; the top of the shell is provided with a first blanking port; one end of the second conveying pipe, which is far away from the pump body, is communicated and butted with the first blanking port; a rotating shaft of the sample storage cavity is provided with a stepping motor in a matching connection manner; step motor drive a plurality of isolation rooms along with deposit the whole synchronous rotation in appearance chamber, correspond the intercommunication with first blanking mouth in proper order, save respectively the water sample of pump body at the different time pumpingly delivering.
Further, the side outline of the isolation chamber is an 'Contraband' shaped structure, comprising a material receiving chamber, a transition chamber and a balance chamber; the receiving chamber corresponds to the upper end part of the isolating chamber Contraband-shaped structure; the transition chamber corresponds to the middle part of the isolating chamber 'Contraband' shaped structure; the balance chamber corresponds to the lower end part of the isolating chamber Contraband-shaped structure;
the top of the transition chamber is communicated with the bottom of the receiving chamber; the bottom of the transition chamber is communicated with the top of the balance chamber; the material receiving chamber and the transition chamber in the plurality of isolation chambers are circumferentially spliced along the rotation direction of the sample storage cavity; the balance chamber parts in the isolation chambers are mutually overlapped in the vertical direction; the projection of the balance chamber in the vertical direction is rotationally symmetrical about the rotation axis of the sample storage chamber.
Further, the top of the receiving chamber is of an open structure; a cover plate is arranged above the sample storage cavity in a pressing mode; a second blanking port is formed in the cover plate; the second blanking port is correspondingly communicated with the first blanking port; a column body extends downwards from the center of the bottom of the cover plate; one side of the material receiving chamber facing the rotation center is provided with a first transmission tooth; the surface of the cylinder is provided with a second transmission gear; the second transmission gear is correspondingly arranged on the rotating path of the first transmission gear; the first transmission teeth are obliquely arranged, and the height of the first transmission teeth is gradually reduced along the rotation direction; the lower end face of the second transmission gear is in contact with the upper end face of the first transmission gear; rotating the material contact chamber, extruding the cover plate to move upwards along with the rotation after the first transmission teeth are contacted with the second transmission teeth, and falling the cover plate after the first transmission teeth are separated from the second transmission teeth; a first elastic piece is vertically arranged on the inner side of the top of the shell; the bottom of the first elastic piece is in press fit with the top of the cover plate.
Furthermore, a plurality of second transmission teeth are uniformly distributed on the surface of the cylinder body in an annular mode; and the second transmission teeth are matched with the first transmission teeth on different material receiving chambers in a one-to-one correspondence manner.
Further, the rope body comprises a first rope and a second rope which are arranged in parallel; the second mooring ropes are arranged under the first mooring ropes at intervals; a first hook body and a second hook body are arranged on the upper side and the lower side of the shell; the first hook body is correspondingly buckled on the first cable; the second hook body is correspondingly buckled on a second cable; a second elastic piece is connected between the first hook body and the shell; and a third elastic part is connected between the second hook body and the shell.
Furthermore, a relay rod is also arranged on the rope body; the bottom of the relay rod is embedded in the target water area; the upper end of the relay rod is provided with a first rope stringing hole and a second rope stringing hole which are parallel to each other; the first cable is arranged in the first rope hole in a penetrating mode; the second cable is arranged in the second rope stringing hole in a penetrating mode; two ends of the first rope stringing hole along the length direction of the first rope stringing hole are provided with first steering wheels; and second steering wheels are arranged at two ends of the second rope stringing hole along the length direction of the second rope stringing hole.
Further, a protective cover is wrapped on the inlet end of the first conveying pipe; the surface of the protective cover is distributed with filter screens; the protective cover is connected with an air bag and a balancing weight.
A time-sharing sampling system and a sampling method thereof for dynamic water quality detection are disclosed, wherein a sampler is arranged on a rope body through a first hook body and a second hook body, a frame body and a traction table are arranged near a target water area, and the rope body is pulled to stabilize the position of the sampler; periodically starting the pump body and the stepping motor, and conveying water samples to different isolation chambers; the water sample entering the isolation chamber firstly passes through the material receiving chamber and the transition chamber and finally falls into the balance cavity; the balance cavity is symmetrical about the rotating shaft of the sample storage cavity, so that the weight generated by the water sample is uniformly distributed, and the position stability of the sampler is ensured; in the rotation switching process of the isolation chamber, the first transmission teeth move towards the corresponding second transmission teeth along with the rotation; the upper end surface of the first transmission tooth extrudes the lower end surface of the second transmission tooth to push the cover plate to move upwards, so that the friction force between the top of the receiving chamber and the bottom of the cover plate in rotation is reduced; when the first transmission gear is disengaged from the second transmission gear, the cover plate 37 rapidly falls back under the thrust of the first elastic member, and the isolation chamber which is not corresponding to the first blanking port is sealed.
Has the advantages that: the invention relates to a time-sharing sampling system and a sampling method for dynamic water quality detection, wherein the time-sharing sampling system for dynamic water quality detection comprises a frame body, a traction table, a sampler and a rope body; the frame bodies are arranged on two banks of the target water area in pairs; two ends of the rope body are respectively connected with the traction tables on two banks of the target water area; the sampler is hung on the rope body and moves back and forth along the length direction of the rope body; the sampler comprises a sample storage cavity and a pump body; pumping a water sample in a target water area into a sample storage cavity by using a pump body; the sample storage cavity comprises a plurality of annularly spliced isolation chambers, and the pumped and sent water samples are stored separately at different time by utilizing the rotation of the isolation chambers; the isolation room realizes position stabilization in the water sample collection process by utilizing a lower end superposition structure and a double-rope fixing structure of the Contraband-shaped structure; and the flexible floating-sinking type water inlet port is utilized, the acquisition coverage range is expanded, and the adaptive capacity of the operation environment is improved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a time-sharing sampling system;
FIG. 2 is a schematic diagram of a sampler configuration;
FIG. 3 is a partial detail view of the sampler;
FIG. 4 is a schematic diagram of the internal structure of the sampler;
FIG. 5 is a schematic view of a portion of the cover;
FIG. 6 is a schematic view of the structure of the isolation chamber;
FIG. 7 is a schematic view of the first and second gears engaged;
FIG. 8 is a schematic view of a superimposed axis of the isolation chamber;
FIG. 9 is a schematic side view of a compartment in superimposed relation;
FIG. 10 is a schematic view of the working principle of the relay rod;
FIG. 11 is a schematic view of the connection between the sampler and the rope;
fig. 12 is a schematic view of the structure of the relay rod.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
A time-sharing sampling system for dynamic water quality detection, as shown in figure 1, comprises a frame body 1, a traction table 2, a sampler 3 and a rope body 4; the frame bodies 1 are arranged on two banks of a target water area in pairs; two ends of the rope body 4 are respectively connected with the traction tables 2 at two banks of the target water area, so that the rope body 4 spans from the upper part of the target water area; the sampler 3 is hung on the rope body 4 and reciprocates along the length direction of the rope body 4, so that the sampler 3 can be in a stable state by utilizing the restraint of the rope body 4, and the position of the sampler can be flexibly adjusted by moving, particularly aiming at facilities such as drainage ditches designed with a plurality of water channels, the sampler 3 can be driven to reciprocate by pulling two ends of the rope body 4, or the sampler can realize active movement by a travelling wheel mechanism matched with the rope body.
As shown in fig. 2, fig. 3 and fig. 4, the sampler 3 includes a housing 30, a sample storage chamber 31 and a pump body 32; a first delivery pipe 321 is communicated with the inlet end of the pump body 32; one end of the first delivery pipe 321, which is far away from the pump body 32, extends downwards into the area below the liquid level of the target water area, and the water sample enters the pump body 32 through the first delivery pipe 321; a second delivery pipe 322 is communicated with the outlet end of the pump body 32; the sample storage cavity 31 is arranged in the shell 30 in a rotating fit manner; the sample storage cavity 31 comprises a plurality of isolation chambers 311 which are connected with each other; a first blanking port 301 is arranged at the top of the shell 30; one end of the second delivery pipe 322, which is far away from the pump body 32, is communicated and butted with the first blanking port 301, and a water sample in the pump body 32 passes through the second delivery pipe 322 and then reaches the first blanking port 301; a rotating shaft of the sample storage cavity 31 is provided with a stepping motor 33 in a matching connection manner; the stepping motor 33 drives the plurality of isolation chambers 311 to integrally and synchronously rotate along with the sample storage cavity 31, and the isolation chambers are sequentially and correspondingly communicated with the first blanking port 301 to respectively store water samples pumped by the pump body 32 at different times; the isolation chambers 311 are periodically driven by the stepping motor 33 to be switched along the rotation direction shown in the figure, so that water samples pumped at different times are stored by using different isolation chambers 311; the periodic operation of the stepping motor 33 can be controlled manually or by purchasing a timing control circuit board on the internet.
As shown in fig. 6, 8 and 9, the isolation chamber 311 has an outline of "Contraband" structure, and includes a receiving chamber 34, a transition chamber 35 and a balance chamber 36; the receiving chamber 34 corresponds to the upper end part of the structure of the isolating chamber 311 'Contraband'; the transition chamber 35 corresponds to the middle part of the structure in the shape of the separation chamber 311 'Contraband'; the balance chamber 36 corresponds to the lower end portion of the structure of the shape of the separation chamber 311 'Contraband'; the transition chamber 35 comprises an adjusting cavity 351, a first connecting pipe 352 and a second connecting pipe 353, the first connecting pipe 352 and the second connecting pipe 353 are respectively arranged at the upper end and the lower end of the adjusting cavity 351 in a telescopic communication mode, and the height change of the transition chamber 35 is realized through telescopic adjustment, so that the height difference among different balance chambers 36 is realized, and the different balance chambers 36 can be conveniently superposed;
the top of the transition chamber 35 is communicated with the bottom of the receiving chamber 34; the bottom of the transition chamber 35 communicates with the top of the balance chamber 36; the water sample firstly falls into the receiving chamber 34 from the first blanking port 301, then continuously falls through the transition chamber 35, and finally enters the balance chamber 36; the receiving chamber 34 and the transition chamber 35 in the plurality of isolation chambers 311 are circumferentially spliced along the rotation direction of the sample storage cavity 31; the balance chambers 36 in the plurality of isolation chambers 311 are partially overlapped with each other in the vertical direction; the projection of the balance chamber 36 in the vertical direction is rotationally symmetrical about the rotation axis of the sample storage chamber 31; all water samples flowing into the sample storage cavity 31 finally fall into the respective balance chambers 36, so that the weights of all water samples are uniformly distributed, the gravity center offset of the sampler 3 in the sampling process can not be caused, the structural stability of the sampler 3 is greatly improved, the danger of side-turning, tilting and leakage is avoided, and the operation stability is also improved.
As shown in fig. 5, the top of the receiving chamber 34 is an open structure; a cover plate 37 is arranged above the sample storage cavity 31 in a pressing mode; the cover plate 37 is provided with a second blanking port 370; the second blanking port 370 is correspondingly communicated with the first blanking port 301; a cylinder 371 extends downwards from the center of the bottom of the cover plate 37; as shown in fig. 7, a first transmission tooth 341 is disposed on one side of the receiving chamber 34 facing the rotation center; the surface of the cylinder 371 is provided with a second transmission tooth 372; the second transmission teeth 372 are correspondingly arranged on the rotating path of the first transmission teeth 341; the first transmission teeth 341 are obliquely arranged, and the height thereof gradually decreases along the rotation direction; rotating the material receiving chamber 34, as shown in fig. 7 (a), when the first transmission teeth 341 move toward the corresponding second transmission teeth 372 along with the rotation; as shown in part (b) of fig. 7, the lower end surface of the second transmission tooth 372 is disposed in contact with the upper end surface of the first transmission tooth 341; as shown in part (c) of fig. 7, after the first transmission gear 341 contacts the second transmission gear 372, the cover plate 37 is pressed upwards along with the rotation, and the cylinder 371 is separated from the upper end of the receiving chamber 34 temporarily after upwards moving, so as to reduce the friction force in the rotation; as shown in fig. 7 (d), after the first driving teeth 341 are disengaged from the second driving teeth 372, the cover plate 37 falls back as indicated by the arrow; the top of the housing 30 is hinged with a flip 300, and a first elastic member 302 is vertically arranged inside the flip 300; the bottom of the first elastic member 302 is in press fit with the top of the cover plate 37, so as to provide a pushing force for the falling back action of the cover plate 37, and increase the lifting speed of the cover plate 37.
A plurality of second transmission teeth 372 are uniformly distributed on the surface of the cylinder 371 in a circumferential direction; the second transmission teeth 372 are correspondingly matched with the first transmission teeth 341 on different receiving chambers 34 one by one, so that the stress of the cover plate 37 is more uniform.
As shown in fig. 11, the rope body 4 includes a first rope 41 and a second rope 42 arranged in parallel; the second cables 42 are arranged right below the first cables 41 at intervals; the upper and lower sides of the shell 30 are provided with a first hook 304 and a second hook 305; the first hook body 304 is correspondingly buckled on the first cable 41; the second hook body 305 is correspondingly buckled on the second cable 42; a second elastic piece 401 is connected between the first hook body 304 and the shell 30; a third elastic member 402 is connected between the second hook body 305 and the housing 30; compared with the simple suspension, the double-rope structure can ensure that the position of the sampler 3 is more stable and the sampler is not easy to greatly swing due to factors such as wind power and the like; and the second elastic member 401 and the third elastic member 402 can provide buffer for small displacement of the sampler 3, so as to further improve the stability thereof.
As shown in fig. 10 and 12, the rope 4 is further provided with a relay rod 5; the bottom of the relay rod 5 is embedded in a target water area; the upper end of the relay rod 5 is provided with a first rope stringing hole 51 and a second rope stringing hole 52 which are parallel to each other; the first cable 41 is arranged in the first cable hole 51 in a penetrating way; the second cable 42 is arranged in the second cable through hole 52; the secondary lever 5 can provide a turning point for the rope 4 to adapt to the situation of large height drop shown in fig. 10, so as to control the required length of the first conveying pipe 321; two ends of the first rope stringing hole 51 along the length direction are provided with first steering wheels 501; two ends of the second rope stringing hole 52 along the length direction are provided with second steering wheels 502; the wear of the rope body 4 is further reduced by means of a diverting pulley.
As shown in fig. 2, the inlet end of the first delivery pipe 321 is wrapped with a protective cover 39; the surface of the protective cover 39 is distributed with a filter screen 391 for preventing suspended garbage, impurities and the like in the target water area from blocking; the protection cover 39 is connected with an air bag 392 and a balancing weight 393 for adjusting the diving suspension and sinking position state of the water inlet end, so that a collection mode that the first conveying pipe 321 is pulled to extend a certain distance downstream can be realized, the adjustment of an upstream area and a downstream area is realized, and the maneuverability is further enhanced.
A time-sharing sampling system for dynamic water quality detection and a sampling method thereof are provided, wherein a sampler 3 is arranged on a rope body 4 through a first hook body 304 and a second hook body 305, a frame body 1 and a drawing platform 2 are arranged near a target water area, and the rope body 4 is drawn to stabilize the position of the sampler 3; the pump body 32 and the stepping motor 33 are periodically started to convey water samples to different isolation chambers 311; the water sample entering the isolation chamber 311 firstly passes through the material receiving chamber 34 and the transition chamber 35 and finally falls into the balance cavity 36; the balance cavity 36 is symmetrical about the rotating shaft of the sample storage cavity 31, so that the weight generated by the water sample is uniformly distributed, and the position stability of the sampler 3 is ensured; during the rotational switching of the isolating chamber 311, the first transmission tooth 341 moves toward the corresponding second transmission tooth 372 with the rotation; the upper end surface of the first transmission tooth 341 presses the lower end surface of the second transmission tooth 372 to push the cover plate 37 to move upwards, so that the friction force between the top of the rotary receiving chamber 34 and the bottom of the cover plate 37 is reduced; when the first transmission teeth 341 are disengaged from the second transmission teeth 372, the cover plate 37 rapidly falls back under the pushing force of the first elastic member 302, and closes the isolation chamber 311 that does not correspond to the first blanking opening 301.
The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and these are intended to be within the scope of the invention.
Claims (8)
1. A timesharing sampling system for dynamic water quality testing, its characterized in that: comprises a frame body (1), a traction table (2), a sampler (3) and a rope body (4); the frame bodies (1) are arranged on two banks of a target water area in pairs; two ends of the rope body (4) are respectively connected with the traction tables (2) on two banks of the target water area; the sampler (3) is hung on the rope body (4) and moves back and forth along the length direction of the rope body (4);
the sampler (3) comprises a shell (30), a sample storage cavity (31) and a pump body (32); a first delivery pipe (321) is communicated with the inlet end of the pump body (32); one end of the first delivery pipe (321) far away from the pump body (32) extends downwards into a region below the liquid level of the target water area; a second delivery pipe (322) is communicated with the outlet end of the pump body (32); the sample storage cavity (31) is arranged in the shell (30) in a rotating fit manner; the sample storage cavity (31) comprises a plurality of isolation chambers (311); a first blanking port (301) is formed in the top of the shell (30); one end, far away from the pump body (32), of the second conveying pipe (322) is communicated and butted with the first blanking port (301); a rotating shaft of the sample storage cavity (31) is provided with a stepping motor (33) in a matching connection way; step motor (33) drive a plurality of isolation rooms (311) and rotate along with the whole synchronization of sample storage cavity (31), correspond the intercommunication with first blanking mouth (301) in proper order, store respectively the water sample of pump body (32) at the different time pump sending.
2. The time-sharing sampling system for dynamic water quality detection of claim 1, wherein: the side view outline of the isolation chamber (311) is of an Contraband-shaped structure and comprises a receiving chamber (34), a transition chamber (35) and a balance chamber (36); the receiving chamber (34) corresponds to the upper end part of the Contraband-shaped structure of the isolation chamber (311); the transition chamber (35) corresponds to the middle part of the structure of the shape of the separation chamber (311) 'Contraband'; the balance chamber (36) corresponds to the lower end part of the structure of the shape of the isolation chamber (311) 'Contraband';
the top of the transition chamber (35) is communicated with the bottom of the receiving chamber (34); the bottom of the transition chamber (35) is communicated with the top of the balance chamber (36); the material receiving chamber (34) and the transition chamber (35) in the plurality of isolation chambers (311) are circumferentially spliced along the rotating direction of the sample storage cavity (31); the balance chambers (36) in the plurality of isolation chambers (311) are partially overlapped with each other along the vertical direction; the projection of the balance chamber (36) in the vertical direction is rotationally symmetrical about the axis of rotation of the sample chamber (31).
3. The time-sharing sampling system for dynamic water quality detection according to claim 2, wherein: the top of the receiving chamber (34) is of an open structure; a cover plate (37) is arranged above the sample storage cavity (31) in a pressing mode; a second blanking port (370) is formed in the cover plate (37); the second blanking port (370) is correspondingly communicated with the first blanking port (301); a column (371) extends downwards from the center of the bottom of the cover plate (37); one side of the receiving chamber (34) facing the rotation center is provided with a first transmission tooth (341); the surface of the cylinder (371) is provided with a second transmission tooth (372); the second transmission teeth (372) are correspondingly arranged on the rotating path of the first transmission teeth (341); the first transmission teeth (341) are obliquely arranged, and the height of the first transmission teeth is gradually reduced along the rotation direction; the lower end face of the second transmission gear (372) is in contact with the upper end face of the first transmission gear (341); the material contact chamber (34) is rotated, the cover plate (37) is extruded to move upwards along with the rotation after the first transmission teeth (341) are contacted with the second transmission teeth (372), and the cover plate (37) falls back after the first transmission teeth (341) are separated from the second transmission teeth (372); a first elastic piece (302) is vertically arranged on the inner side of the top of the shell (30); the bottom of the first elastic piece (302) is in press fit with the top of the cover plate (37).
4. The time-sharing sampling system for dynamic water quality detection according to claim 3, wherein: a plurality of second transmission teeth (372) are uniformly distributed on the surface of the cylinder (371) in an annular mode; the second transmission teeth (372) are correspondingly matched with the first transmission teeth (341) on different receiving chambers (34) one by one.
5. The time-sharing sampling system for dynamic water quality detection of claim 1, wherein: the rope body (4) comprises a first rope (41) and a second rope (42) which are arranged in parallel; the second cables (42) are arranged under the first cables (41) at intervals; a first hook body (304) and a second hook body (305) are arranged on the upper side and the lower side of the shell (30); the first hook body (304) is correspondingly buckled on the first cable (41); the second hook body (305) is correspondingly buckled on a second cable (42); a second elastic piece (401) is connected between the first hook body (304) and the shell (30); a third elastic piece (402) is connected between the second hook body (305) and the shell (30).
6. The time-sharing sampling system for dynamic water quality detection of claim 5, wherein: the rope body (4) is also provided with a relay rod (5); the bottom of the relay rod (5) is embedded in a target water area; the upper end of the relay rod (5) is provided with a first rope stringing hole (51) and a second rope stringing hole (52) which are parallel to each other; the first cable (41) is arranged in the first cable hole (51) in a penetrating way; the second cable (42) is arranged in the second cable stringing hole (52) in a penetrating way; two ends of the first rope stringing hole (51) along the length direction are provided with first steering wheels (501); and second steering wheels (502) are arranged at two ends of the second rope stringing hole (52) along the length direction of the second rope stringing hole.
7. The time-sharing sampling system for dynamic water quality detection of claim 1, wherein: the inlet end of the first conveying pipe (321) is wrapped with a protective cover (39); the surface of the protective cover (39) is distributed with a filter screen (391); the protection cover (39) is provided with an air bag (392) and a balancing weight (393) in a connected mode.
8. A time-sharing sampling system and a sampling method thereof for dynamic water quality detection are characterized in that: the sampler (3) is arranged on the rope body (4) through the first hook body (304) and the second hook body (305), the frame body (1) and the pulling platform (2) are arranged near a target water area, and the rope body (4) is pulled to stabilize the position of the sampler (3); the pump body (32) and the stepping motor (33) are started periodically, and water samples are conveyed into different isolation chambers (311); the water sample entering the isolation chamber (311) firstly passes through the material receiving chamber (34) and the transition chamber (35) and finally falls into the balance cavity (36); the balance cavity (36) is symmetrical about the rotating shaft of the sample storage cavity (31), so that the weight generated by the water sample is uniformly distributed, and the position stability of the sampler (3) is ensured; in the process of switching the rotation of the isolation chamber (311), the first transmission teeth (341) move towards the corresponding second transmission teeth (372) along with the rotation; the upper end surface of the first transmission tooth (341) presses the lower end surface of the second transmission tooth (372) to push the cover plate (37) to move upwards, so that the friction force between the top of the material receiving chamber (34) and the bottom of the cover plate (37) in rotation is reduced; when the first transmission gear (341) is disengaged from the second transmission gear (372), the cover plate 37 rapidly falls back under the pushing force of the first elastic member (302), and the isolation chamber (311) which is not corresponding to the first blanking port (301) is sealed.
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| CN111958612A (en) * | 2020-08-14 | 2020-11-20 | 中国电建集团贵阳勘测设计研究院有限公司 | Underwater detection robot capable of collecting water sample and cleaning by self |
| CN113702110A (en) * | 2021-09-08 | 2021-11-26 | 临沂市检验检测中心 | Liquid food of adjustable degree of depth detects with getting liquid equipment |
| CN114216744A (en) * | 2021-12-16 | 2022-03-22 | 中国水产科学研究院黑龙江水产研究所 | Water quality sampling detection device for culture pond |
| CN117147233A (en) * | 2023-10-30 | 2023-12-01 | 水研未来(北京)环境工程技术有限公司 | Sewage purification sampling device |
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| CN111958612A (en) * | 2020-08-14 | 2020-11-20 | 中国电建集团贵阳勘测设计研究院有限公司 | Underwater detection robot capable of collecting water sample and cleaning by self |
| CN113702110A (en) * | 2021-09-08 | 2021-11-26 | 临沂市检验检测中心 | Liquid food of adjustable degree of depth detects with getting liquid equipment |
| CN113702110B (en) * | 2021-09-08 | 2023-12-01 | 临沂市检验检测中心 | Liquid food of adjustable degree of depth detects with getting liquid equipment |
| CN114216744A (en) * | 2021-12-16 | 2022-03-22 | 中国水产科学研究院黑龙江水产研究所 | Water quality sampling detection device for culture pond |
| CN114216744B (en) * | 2021-12-16 | 2023-07-14 | 中国水产科学研究院黑龙江水产研究所 | Water sampling detection device for culture pond |
| CN117147233A (en) * | 2023-10-30 | 2023-12-01 | 水研未来(北京)环境工程技术有限公司 | Sewage purification sampling device |
| CN117147233B (en) * | 2023-10-30 | 2024-02-02 | 水研未来(北京)环境工程技术有限公司 | Sewage purification sampling device |
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