CN107607362B - Water sample collecting equipment capable of simultaneously collecting multiple layers of water samples - Google Patents
Water sample collecting equipment capable of simultaneously collecting multiple layers of water samples Download PDFInfo
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- CN107607362B CN107607362B CN201711020288.9A CN201711020288A CN107607362B CN 107607362 B CN107607362 B CN 107607362B CN 201711020288 A CN201711020288 A CN 201711020288A CN 107607362 B CN107607362 B CN 107607362B
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Abstract
The invention discloses a water sample collecting device capable of simultaneously collecting multiple layers of water samples; belonging to the technical field of sampling equipment; the device is technically characterized by comprising an installation bottom plate, wherein a plurality of connecting columns are distributed on the bottom of the installation bottom plate, a supporting column is connected to the center of the upper end face of the installation bottom plate, an installation cylinder is arranged at the near end part of the upper end of the supporting column, an annular sampling seat is arranged on the outer wall of the installation cylinder along the circumferential direction, and a plurality of groups of guide rods are connected between the bottom of the annular sampling seat and the installation bottom plate along the vertical; each group of guide rods is movably sleeved with a gravity diving frame, a sampling bottle is arranged in the gravity diving frame, a sealing plug is arranged at the bottle mouth of the sampling bottle, and an opening and closing mechanism matched with the sealing plug is arranged at the top of the gravity diving frame; each gravity diving frame is connected with a lifting driving mechanism; the invention aims to provide a portable water sample collecting device which has compact structure, convenient use and good effect and can simultaneously collect multiple layers of water samples; the method is used for sampling water quality.
Description
Technical Field
The invention relates to a sampling device, in particular to a water sample collecting device capable of collecting multiple layers of water samples simultaneously.
Background
Along with the development of science and technology, the continuous promotion of industrialization degree and urbanization process, the sewage problem is more and more serious, carries out corresponding processing and renovation to sewage, at first needs to carry out the sampling to sewage. The sampling is both to prepare the solution and to allow easy observation of the results of the understanding process.
In the prior art, sewage is sampled by mainly adopting a manual container using mode, and the mode has the defects of low acquisition efficiency, inaccurate acquisition and capability of acquiring sewage of a single water layer.
Disclosure of Invention
The invention aims to provide the water sample collecting equipment which has a compact structure, is convenient to use and has a good effect and can simultaneously collect multiple layers of water samples, aiming at the defects of the prior art.
The technical scheme of the invention is realized as follows: a water sample collecting device capable of collecting multiple layers of water samples simultaneously comprises an installation bottom plate, wherein a plurality of connecting columns are distributed on the bottom of the installation bottom plate, a supporting column is connected to the center of the upper end face of the installation bottom plate, an installation cylinder is arranged at the near end part of the upper end of the supporting column, an annular sampling seat is arranged on the outer wall of the installation cylinder along the circumferential direction, a plurality of groups of guide rods are connected between the bottom of the annular sampling seat and the installation bottom plate along the vertical direction, and the guide rods are annular and are uniformly distributed; each group of guide rods is movably sleeved with a gravity diving frame, a sampling bottle is arranged in the gravity diving frame, a sealing plug is arranged at the bottle mouth of the sampling bottle, and an opening and closing mechanism matched with the sealing plug is arranged at the top of the gravity diving frame;
each gravity diving frame is respectively connected with a lifting driving mechanism, and each lifting driving mechanism is respectively connected with an external control unit circuit.
In the above water sample collecting device capable of collecting multiple layers of water samples simultaneously, the gravity submergence frame is composed of a placing chamber which is arranged in an interval formed by each guide rod and is movably connected with the guide rod, a clamping mechanism which is arranged in the placing chamber and is used for clamping a sampling bottle, and a gravity block which is arranged at the bottom of the placing chamber; the bottom of the placing chamber is provided with a through hole; the opening and closing mechanism is arranged at the top of the placing chamber.
In the water sample collecting device capable of simultaneously collecting multiple layers of water samples, the clamping mechanism mainly comprises a tray arranged at the lower part of the placing chamber, lower clamping springs distributed at the bottom in the placing chamber, a clamping plate arranged at the upper part of the placing chamber and upper clamping springs, wherein two ends of the lower clamping springs are fixedly connected with the placing chamber and the tray respectively; the tray and the clamping plate are matched to clamp the sampling bottle, and the clamping plate is provided with a positioning hole matched with the outer diameter of the bottle mouth of the sampling bottle.
In the water sample collecting device capable of collecting multiple layers of water samples simultaneously, two opposite side surfaces of the placing chamber are provided with the operation doors; the clamping mechanism further comprises an arc-shaped clamping plate connected with the operating door through a side clamping spring, and an arc-shaped part corresponding to the arc-shaped clamping plate is arranged on the operating door.
In the water sample collecting device capable of simultaneously collecting multiple layers of water samples, the opening and closing mechanism consists of a waterproof shell arranged at the top of the gravity diving frame, a push rod motor arranged in the waterproof shell, a storage battery, a main control unit and a wireless signal receiving module; the main control unit is respectively connected with the wireless signal receiving module, the push rod motor and the storage battery circuit; a transverse sealing partition plate is arranged in the waterproof shell, a vertical sealing partition plate is arranged on the upper end face of the transverse sealing partition plate, the transverse sealing partition plate and the vertical sealing partition plate divide the waterproof shell into three independent chambers, a push rod motor is positioned in one of the chambers above the transverse sealing partition plate, a push rod of the push rod motor penetrates through the transverse sealing partition plate to be connected with a sealing plug, through holes matched with the sealing plug are formed in the waterproof shell and the gravity diving frame, and a sealing rubber ring matched with the sealing plug is arranged at the contact part of the waterproof shell and the gravity diving frame, corresponding to the through holes; the storage battery, the main control unit and the wireless signal receiving module are positioned in another cavity above the transverse sealing partition plate, a step type operation hole is formed in the upper end face of the waterproof shell corresponding to the cavity, a sealing cover matched with the step type operation hole is arranged in the step type operation hole, and a waterproof rubber ring is arranged between the lower end face of the sealing cover and the contact part of the step type operation hole.
In the water sample collecting device capable of collecting multiple layers of water samples simultaneously, the lifting driving mechanism is a winch set arranged on the annular sampling seat, and a driving motor in the winch set is in circuit connection with an external control unit; a traction rope of the winch unit penetrates through the annular sampling seat and is connected with the upper end of the opening and closing mechanism; the annular sampling seat is provided with a horn-shaped guide hole matched with the traction rope.
In the water sample collecting device capable of simultaneously collecting multiple layers of water samples, the guide rods below the annular sampling seat are movably sleeved with the measuring seat, the guide rods on the upper side and the lower side of the measuring seat are respectively provided with the positioning ring, and the positioning rings are fixedly connected with the guide rods through the locking screws; an upper positioning sleeve corresponding to the guide hole is arranged at the bottom of the annular sampling seat, a lower positioning sleeve corresponding to the upper positioning sleeve is arranged on the upper end face of the measuring seat, and a through hole is formed in the measuring seat corresponding to the lower positioning sleeve; the cover is equipped with the measurement mounting bracket between upper and lower position sleeve, is connected with horizontal rotating shaft through the bearing on measuring the mounting bracket, is equipped with the range finding gyro wheel that suits with the haulage rope in horizontal rotating shaft, horizontal rotating shaft is connected with range finding metering module, and range finding metering module and external control unit circuit are connected.
In foretell water sample collection equipment that can gather multilayer water sample simultaneously, the support column upper end is connected with the load seat, is equipped with the cushion at load seat up end.
In foretell water sample collection equipment that can gather multilayer water sample simultaneously, be equipped with annular protection casing on the outlying annular sampling seat of lift actuating mechanism, annular protection casing forms annular and waterproof dirt-proof seal installation space with installation cylinder and the cooperation of annular sampling seat.
After the structure is adopted, the whole acquisition equipment is ensured to be arranged along the vertical direction through the matching of the mounting bottom plate and the connecting column. Through setting up multiunit guide bar and cooperating corresponding gravity dive frame, start/stop mechanism and lift actuating mechanism for this collection equipment can gather the quality of water of different water layers simultaneously as required. Through the sealing plug and the cooperation of starting and stopping mechanism, both realized opening and closing of sampling bottle, also guaranteed the inside infiltration proof of starting and stopping mechanism simultaneously. Further, in order to accurately control the submergence depth of the gravity submergence frame, a distance measuring roller is arranged to be matched with a distance measuring and metering module, and the position of the gravity submergence frame is obtained by calculating the moving length of the traction rope, so that a water sample of a certain water layer can be accurately collected. The structure of the invention is suitable for sewage treatment plants or rivers and lakes needing to detect water quality.
Drawings
The invention will be further described in detail with reference to examples of embodiments shown in the drawings to which, however, the invention is not restricted.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged partial schematic view at A of FIG. 1;
FIG. 3 is a schematic cross-sectional view at B-B in FIG. 2;
FIG. 4 is an enlarged partial schematic view at C of FIG. 1;
FIG. 5 is an enlarged partial schematic view at D of FIG. 1;
fig. 6 is a schematic sectional view at E-E in fig. 1.
In the figure: the device comprises a mounting base plate 1, a connecting column 2, a supporting column 3, a mounting cylinder 3a, a force bearing seat 3b, a rubber mat 3c, an annular sampling seat 4, a guide rod 4a, a guide hole 4b, an upper positioning sleeve 4c, a gravity diving frame 5, a placing chamber 5a, a gravity block 5b, an operation door 5c, an arc-shaped part 5d, a sampling bottle 6, a sealing plug 6a, an opening and closing mechanism 7, a waterproof shell 7a, a push rod motor 7b, a storage battery 7c, a main control unit 7d, a wireless signal receiving module 7e, a transverse sealing partition plate 7f, a vertical sealing partition plate 7g, a sealing cover 7h, a waterproof rubber ring 7i, a lifting driving mechanism 8, a clamping mechanism 9, a tray 9a, a lower clamping spring 9b, a clamping plate 9c, an upper clamping spring 9d, a side clamping spring 9e, an arc-shaped clamping plate 9f, a sealing rubber ring 10, a measuring seat 11, a lower positioning sleeve 11a, a positioning, The device comprises a measuring installation frame 13, a horizontal rotating shaft 14, a ranging roller 15, a ranging metering module 16 and an annular protection 17.
Detailed Description
Referring to fig. 1 to 6, the water sample collecting device capable of simultaneously collecting multiple layers of water samples comprises a mounting base plate 1, a plurality of connecting columns 2 are distributed at the bottom of the mounting base plate 1, a supporting column 3 is connected to the center of the upper end face of the mounting base plate 1, a bearing seat 3b is connected to the upper end of the supporting column 3, a rubber cushion 3c is arranged on the upper end face of the bearing seat 3b, the whole collecting device can be conveniently pressed into a mounting position through the bearing seat, and the mounting position can be a perforated seat preset in a sewage treatment tank. Or sludge in natural waters or hard soil, and connecting columns with different lengths are designed according to different installation environments. A mounting cylinder 3a is arranged at the near end part of the upper end of the supporting column 3, an annular sampling seat 4 is arranged on the outer wall of the mounting cylinder 3a along the circumferential direction, a plurality of groups of guide rods 4a are connected between the bottom of the annular sampling seat 4 and the mounting bottom plate 1 along the vertical direction, and the guide rods 4a are annular and are uniformly distributed at intervals; each group of guide rods 4 is movably sleeved with a gravity diving frame 5, a sampling bottle 6 is arranged in the gravity diving frame 5, a sealing plug 6a is arranged at the bottle mouth of the sampling bottle 6, and the top of the gravity diving frame 5 is provided with an opening and closing mechanism 7 matched with the sealing plug 6 a;
each gravity diving frame 5 is connected with a lifting driving mechanism 8, and each lifting driving mechanism 8 is connected with an external control unit circuit. In order to prevent each drop driving mechanism from being influenced and influenced by external rainwater or dust, an annular protective cover 17 is arranged on the annular sampling seat 4 on the periphery of the drop driving mechanism 8, and the annular protective cover 17 is matched with the mounting cylinder 3a and the annular sampling seat 4 to form an annular waterproof and dustproof sealed mounting space.
Specifically, in this embodiment, the gravity submerging frame 5 is composed of a placing chamber 5a disposed in the section formed by each guide rod 4a and movably connected with the guide rod 4a, a clamping mechanism 9 disposed in the placing chamber 5a for clamping the sampling bottle 6, and a gravity block 5b disposed at the bottom of the placing chamber 5 a; the bottom of the placing chamber 5a is provided with a through hole; the opening and closing mechanism 7 is arranged at the top of the placing chamber 5 a. Meanwhile, two opposite side surfaces of the placing chamber 5a are provided with operation doors 5 c; the clamping mechanism 9 further comprises an arc-shaped clamping plate 9f connected with the operating door 5c through a side clamping spring 9e, and an arc-shaped part 5d corresponding to the arc-shaped clamping plate 9f is arranged on the operating door 5 c. Through arc splint and side centre gripping spring, guarantee the stability of sampling bottle horizontal position.
The clamping mechanism 9 mainly comprises a tray 9a arranged at the lower part of the placing chamber 5a, lower clamping springs 9b distributed at the inner bottom of the placing chamber 5a and fixedly connected with the placing chamber 5a and the tray 9a at two ends respectively, a clamping plate 9c arranged at the upper part of the placing chamber 5a and an upper clamping spring 9d fixedly connected with the inner top of the placing chamber 5a and the clamping plate 9c at two ends respectively; tray 9a and grip block 9c cooperation centre gripping sampling bottle 6 are equipped with the locating hole that suits with sampling bottle 6 bottleneck external diameter on grip block 9 c.
The opening and closing mechanism 7 consists of a waterproof shell 7a arranged at the top of the gravity diving frame 5, a push rod motor 7b arranged in the waterproof shell 7a, a storage battery 7c, a main control unit 7d and a wireless signal receiving module 7 e; the main control unit 7d is respectively connected with the wireless signal receiving module 7e, the push rod motor 7b and the storage battery 7c through circuits. Of course, if the submergence depth is deep, in order to ensure the stability of signal transmission, the wireless signal receiving module can also be replaced by adopting a wired connection mode. A transverse sealing partition plate 7f is arranged in the waterproof shell 7a, a vertical sealing partition plate 7g is arranged on the upper end face of the transverse sealing partition plate 7f, the waterproof shell 7a is divided into three independent chambers by the transverse sealing partition plate 7f and the vertical sealing partition plate 7g, the push rod motor 7b is positioned in one of the chambers above the transverse sealing partition plate 7f, a push rod of the push rod motor 7b penetrates through the transverse sealing partition plate 7f to be connected with the sealing plug 6a, through holes matched with the sealing plugs 6a are arranged on the waterproof shell 7a and the gravity diving frame 5, a sealing rubber ring 10 matched with the sealing plug 6a is arranged at the contact part of the waterproof shell 7a corresponding to the through hole and the gravity diving frame 5, the sealing rubber ring is matched with the sealing plug, so that when the sampling bottle is opened or closed, the water cannot seep into the waterproof shell skillfully, and the normal underwater work of the opening and closing mechanism is ensured; the storage battery 7c, the main control unit 7d and the wireless signal receiving module 7e are positioned in another cavity above the transverse sealing partition plate 7f, a step type operation hole is formed in the upper end face of the waterproof shell 7a corresponding to the cavity, a sealing cover 7h matched with the step type operation hole is arranged in the step type operation hole, and a waterproof rubber ring 7i is arranged between the lower end face of the sealing cover 7h and a contact part of the step type operation hole.
The lifting driving mechanism 8 is a winch set arranged on the annular sampling seat 4, and a driving motor in the winch set is in circuit connection with an external control unit; a traction rope 8a of the winch set penetrates through the annular sampling seat 4 and is connected with the upper end of the opening and closing mechanism 7; the annular sampling seat 4 is provided with a horn-shaped guide hole 4b matched with the traction rope 8 a.
Furthermore, a measuring seat 11 is movably sleeved on a guide rod 4a below the annular sampling seat 4, positioning rings 12 are respectively arranged on the guide rods 4a on the upper side and the lower side of the measuring seat 11, and the positioning rings 12 are fixedly connected with the guide rods 4a through locking screws 12 a; an upper positioning sleeve 4c corresponding to the guide hole 4b is arranged at the bottom of the annular sampling seat 4, a lower positioning sleeve 11a opposite to the upper positioning sleeve 4c is arranged on the upper end surface of the measuring seat 11, and a through hole is arranged on the measuring seat 11 corresponding to the lower positioning sleeve 11 a; the measuring installation frame 13 is sleeved between the upper positioning sleeve 4c and the lower positioning sleeve 11a, a horizontal rotating shaft 14 is connected to the measuring installation frame 13 through a bearing, a distance measuring roller 15 matched with the traction rope 8a is arranged on the horizontal rotating shaft 14, the horizontal rotating shaft 14 is connected with a distance measuring and metering module 16, and the distance measuring and metering module 16 is in circuit connection with an external control unit. Through the cooperation of the distance measuring roller and the distance measuring and metering module, the submergence depth of the gravity submergence frame can be accurately controlled, so that the sampling accuracy is ensured. The setting of measuring seat can further improve the stability of guide bar, and then guarantees that whole sampling process's stability goes on.
When the device is used, the submerging depth of one or more gravity submerging frames is set through an external control unit according to the preset water sample collecting depth, then the corresponding winch set is controlled to work, and the gravity submerging frames move downwards to the preset depth along the guide rods under the action of the gravity blocks. Simultaneously, the closing plug is opened to the operating device, makes the water sample get into the sampling bottle, and after the scheduled time arrived, hoist mechanism work pulled out the surface of water with gravity dive frame, resets to initial position, and operating personnel opens the operating door, can take out the sampling bottle.
The above-mentioned embodiments are only for convenience of description, and are not intended to limit the present invention in any way, and those skilled in the art will understand that the technical features of the present invention can be modified or changed by other equivalent embodiments without departing from the scope of the present invention.
Claims (6)
1. A water sample collecting device capable of collecting multiple layers of water samples simultaneously comprises an installation bottom plate (1), wherein a plurality of connecting columns (2) are distributed at the bottom of the installation bottom plate (1), a supporting column (3) is connected to the center of the upper end face of the installation bottom plate (1), an installation cylinder (3 a) is arranged at the near end part of the upper end of the supporting column (3), an annular sampling seat (4) is arranged on the outer wall of the installation cylinder (3 a) along the circumferential direction, a plurality of groups of guide rods (4 a) are connected between the bottom of the annular sampling seat (4) and the installation bottom plate (1) along the vertical direction, and the guide rods (4 a) are annular and are uniformly; each group of guide rods (4) is movably sleeved with a gravity diving frame (5), a sampling bottle (6) is arranged in the gravity diving frame (5), a sealing plug (6 a) is arranged at the bottle mouth of the sampling bottle (6), and the top of the gravity diving frame (5) is provided with an opening and closing mechanism (7) matched with the sealing plug (6 a);
each gravity diving frame (5) is respectively connected with a lifting driving mechanism (8), and each lifting driving mechanism (8) is respectively connected with an external control unit circuit;
the opening and closing mechanism (7) consists of a waterproof shell (7 a) arranged at the top of the gravity diving frame (5), a push rod motor (7 b) arranged in the waterproof shell (7 a), a storage battery (7 c), a main control unit (7 d) and a wireless signal receiving module (7 e); the main control unit (7 d) is respectively in circuit connection with the wireless signal receiving module (7 e), the push rod motor (7 b) and the storage battery (7 c); a transverse sealing partition plate (7 f) is arranged in the waterproof shell (7 a), a vertical sealing partition plate (7 g) is arranged on the upper end face of the transverse sealing partition plate (7 f), the transverse sealing partition plate (7 f) and the vertical sealing partition plate (7 g) divide the waterproof shell (7 a) into three independent chambers, a push rod motor (7 b) is located in one of the chambers above the transverse sealing partition plate (7 f), a push rod of the push rod motor (7 b) penetrates through the transverse sealing partition plate (7 f) to be connected with a sealing plug (6 a), through holes matched with the sealing plug (6 a) are formed in the waterproof shell (7 a) and the gravity diving frame (5), and sealing rubber rings (10) matched with the sealing plug (6 a) are arranged at the contact parts of the waterproof shell (7 a) and the gravity diving frame (5) corresponding to the through holes; the storage battery (7 c), the main control unit (7 d) and the wireless signal receiving module (7 e) are positioned in another cavity above the transverse sealing partition plate (7 f), a step-type operation hole is formed in the upper end face of the waterproof shell (7 a) corresponding to the cavity, a matched sealing cover (7 h) is arranged in the step-type operation hole, and a waterproof rubber ring (7 i) is arranged between the lower end face of the sealing cover (7 h) and a contact part of the step-type operation hole;
the gravity diving frame (5) consists of a placing chamber (5 a) which is arranged in an interval formed by each guide rod (4 a) and is movably connected with the guide rods (4 a), a clamping mechanism (9) which is arranged in the placing chamber (5 a) and is used for clamping a sampling bottle (6) and a gravity block (5 b) which is arranged at the bottom of the placing chamber (5 a); the bottom of the placing chamber (5 a) is provided with a through hole; the opening and closing mechanism (7) is arranged at the top of the placing chamber (5 a);
the clamping mechanism (9) mainly comprises a tray (9 a) arranged at the lower part of the placing chamber (5 a), lower clamping springs (9 b) distributed at the bottom in the placing chamber (5 a) and fixedly connected with the placing chamber (5 a) and the tray (9 a) at two ends respectively, a clamping plate (9 c) arranged at the upper part of the placing chamber (5 a) and an upper clamping spring (9 d) fixedly connected with the top in the placing chamber (5 a) and the clamping plate (9 c) at two ends respectively; tray (9 a) and grip block (9 c) cooperation centre gripping sampling bottle (6), be equipped with the locating hole that suits with sampling bottle (6) bottleneck external diameter on grip block (9 c).
2. The water sampling equipment capable of simultaneously collecting multiple layers of water samples according to claim 1, wherein two opposite side surfaces of the placing chamber (5 a) are provided with operation doors (5 c); the clamping mechanism (9) further comprises an arc-shaped clamping plate (9 f) connected with the operating door (5 c) through a side clamping spring (9 e), and an arc-shaped part (5 d) corresponding to the arc-shaped clamping plate (9 f) is arranged on the operating door (5 c).
3. The water sample collecting device capable of collecting multiple layers of water samples simultaneously according to claim 1, wherein the lifting driving mechanism (8) is a winch set arranged on the annular sampling seat (4), and a driving motor in the winch set is in circuit connection with an external control unit; a traction rope (8 a) of the winch set penetrates through the annular sampling seat (4) to be connected with the upper end of the opening and closing mechanism (7); the annular sampling seat (4) is provided with a horn-shaped guide hole (4 b) matched with the traction rope (8 a).
4. The water sample collecting device capable of collecting multiple layers of water samples simultaneously according to claim 3, wherein a measuring seat (11) is movably sleeved on the guide rod (4 a) below the annular sampling seat (4), positioning rings (12) are respectively arranged on the guide rods (4 a) on the upper side and the lower side of the measuring seat (11), and the positioning rings (12) are fixedly connected with the guide rods (4 a) through locking screws (12 a); an upper positioning sleeve (4 c) corresponding to the guide hole (4 b) is arranged at the bottom of the annular sampling seat (4), a lower positioning sleeve (11 a) opposite to the upper positioning sleeve (4 c) is arranged on the upper end surface of the measuring seat (11), and a through hole is formed in the measuring seat (11) corresponding to the lower positioning sleeve (11 a); the measuring installation frame (13) is sleeved between the upper positioning sleeve and the lower positioning sleeve (4 c and 11 a), a horizontal rotating shaft (14) is connected to the measuring installation frame (13) through a bearing, a distance measuring roller (15) matched with the traction rope (8 a) is arranged on the horizontal rotating shaft (14), the horizontal rotating shaft (14) is connected with a distance measuring and metering module (16), and the distance measuring and metering module (16) is in circuit connection with an external control unit.
5. The water sample collecting device capable of collecting multiple layers of water samples simultaneously according to claim 1, wherein the upper end of the supporting column (3) is connected with a bearing seat (3 b), and a rubber pad (3 c) is arranged on the upper end surface of the bearing seat (3 b).
6. The water sample collecting device capable of collecting multiple layers of water samples simultaneously as claimed in claim 1 or 5, wherein an annular protective cover (17) is arranged on the annular sampling seat (4) on the periphery of the lifting driving mechanism (8), and the annular protective cover (17) is matched with the mounting cylinder (3 a) and the annular sampling seat (4) to form an annular waterproof and dustproof sealed mounting space.
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| CN201711020288.9A CN107607362B (en) | 2017-10-27 | 2017-10-27 | Water sample collecting equipment capable of simultaneously collecting multiple layers of water samples |
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| CN201711020288.9A CN107607362B (en) | 2017-10-27 | 2017-10-27 | Water sample collecting equipment capable of simultaneously collecting multiple layers of water samples |
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| CN107607362A CN107607362A (en) | 2018-01-19 |
| CN107607362B true CN107607362B (en) | 2021-02-12 |
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| CN109540594B (en) * | 2019-01-16 | 2020-03-31 | 河北地质大学 | Water pollution monitoring sampling device |
| CN109991038B (en) * | 2019-04-17 | 2020-04-07 | 福建师范大学福清分校 | Automatic sampling device of submarine sediment |
| CN111122244B (en) * | 2019-12-30 | 2022-07-15 | 芜湖职业技术学院 | Water quality monitoring water sample collection device |
| CN112146932B (en) * | 2020-09-07 | 2023-07-21 | 陈琛 | Standardized rapid acquisition equipment for extracting water body environment DNA |
| CN112414770B (en) * | 2020-09-29 | 2024-02-09 | 浙江省海洋水产研究所 | Rotary bottom water collecting device and water sample collecting method |
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