CN114441231A - Water sample collecting device for monitoring water area environment in deep water area - Google Patents
Water sample collecting device for monitoring water area environment in deep water area Download PDFInfo
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- CN114441231A CN114441231A CN202210014154.0A CN202210014154A CN114441231A CN 114441231 A CN114441231 A CN 114441231A CN 202210014154 A CN202210014154 A CN 202210014154A CN 114441231 A CN114441231 A CN 114441231A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
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Abstract
The invention relates to a collecting device, in particular to a water sample collecting device for monitoring water area environment in a deep water area. The technical problem to be solved is as follows: the utility model provides a water area environmental monitoring water sample collection device for deep water district that does not have danger and convenient sample. The utility model provides a waters environmental monitoring water sample collection device for deep water district, including shell, collection tank, nose bar and sealed lid, four sides of collection tank middle part outer wall all are equipped with the nose bar, and the collection tank outside is movable to be connected with the shell, and shell and nose bar contact cooperation, the threaded connection has sealed lid in the middle of the collection tank top. Through the cooperation between extrusion subassembly and the coupling assembling, be convenient for go into the deep water district with the collection tank is dark, take a sample to the water in the deep water district, after the sample was accomplished, be convenient for take out the water sample.
Description
Technical Field
The invention relates to a collecting device, in particular to a water sample collecting device for monitoring water area environment in a deep water area.
Background
The water resource is a resource which can not be lacked by human beings, the protection of the water resource is the protection of the environment and the health of human beings, and when the local economy is rapidly developed for years, environmental pollution events such as water, gas and noise of different degrees continuously occur in various regions, so that the life quality of people is seriously influenced, the continuous development of the local economy is hindered, the investment on environment monitoring and emergency monitoring needs to be increased, and the water quality is subjected to irregular spot check.
When the water environment is detected, the water quality on the water surface is generally detected, but a lot of heavy metal pollution and pathogens of some infectious diseases exist in a deep water area, so that the detection of the water in the deep water is also needed. At present, the sampler for detecting the water in the deepwater area generally enables underwater workers to enter the deepwater area for sampling, so that life is dangerous, and the sampling is troublesome, so that a water area environmental monitoring water sample collecting device for the deepwater area, which is not dangerous and convenient to sample, is researched and developed at present.
Disclosure of Invention
In order to overcome the defect that underwater workers enter a deep water area to take samples, the underwater deep water area sampling device has life danger and the defect of troublesome sampling, and the technical problem to be solved is as follows: the utility model provides a water area environmental monitoring water sample collection device for deep water district that does not have danger and convenient sample.
The utility model provides a waters environmental monitoring water sample collection device for deep water district, including shell, holding vessel, nose bar, sealed lid, extrusion subassembly and coupling assembling, four sides of holding vessel middle part outer wall all are equipped with the nose bar, and the holding vessel outside is movable is connected with the shell, and shell and nose bar contact cooperation, the threaded connection has sealed lid in the middle of the holding vessel top, is equipped with the extrusion subassembly between shell and the holding vessel top, is equipped with coupling assembling on the shell.
More preferably, the extrusion assembly comprises a connecting seat, a supporting spring and an annular pressing plate, the annular pressing plate is arranged at the top of the collecting tank and located on the outer side of the collecting tank, the supporting spring is arranged at the top of the annular pressing plate, the connecting seat is arranged at the top of the supporting spring, and the top wall of the connecting seat is connected with the top wall of the shell.
More preferably, coupling assembling is including mount pad, fixing bolt and head rod, and the shell top is stamped the mount pad, and the even screw thread formula along the circumferencial direction is connected with fixing bolt between mount pad and the shell top, is equipped with the head rod in the middle of the mount pad top, and the mount pad both sides all open there is the outlet.
More preferably, still including buckle mechanism, buckle mechanism is including the fixing base, the link, first annular mounting bracket, the uide bushing, a reset spring, pothook and buckle seat, shell one side is equipped with the fixing base, fixing base lower part rotary type is connected with the link, link one side is equipped with first annular mounting bracket, the anterior both sides of first annular mounting bracket all are connected with the uide bushing, equal slidingtype is connected with the pothook on the uide bushing, all be equipped with a reset spring between the uide bushing of pothook one side and homonymy, the shell both sides all are connected with the buckle seat, buckle seat and pothook joint.
More preferred is, still including trigger mechanism, trigger mechanism includes gag lever post, second annular mounting bracket, spherical gasbag and second reset spring, and first annular mounting bracket one side evenly is equipped with many gag lever posts, is equipped with second annular mounting bracket between the gag lever post bottom, has placed spherical gasbag between the gag lever post, is equipped with second reset spring between roof and the interior diapire in the spherical gasbag.
More preferably, the material loading device further comprises a counterweight mechanism, the counterweight mechanism comprises a positioning rod, a third reset spring, a push plate, a second connecting rod, a third annular mounting frame, a fixed shaft rod, a volute spring, a hopper plate and a fixed push rod, the second connecting rod is uniformly arranged at the bottom of the second annular mounting frame along the circumferential direction, the third annular mounting frame is arranged between the bottoms of the second connecting rods, the positioning rods are arranged on four sides of the bottom of the second annular mounting frame respectively and are respectively positioned between the two adjacent second connecting rods, the push plate is connected between the positioning rods in a sliding manner, the third reset spring is arranged between the four sides of the bottom of the push plate and the lower part of the positioning rod, the fixed shaft rod is arranged on each of the four sides of the bottom of the third annular mounting frame, the hopper plate is connected on the fixed shaft rod in a rotating manner, springs are arranged between the two sides of the hopper plate and the fixed shaft rod, and the fixed push rod is arranged on the inner side of the upper part of the hopper plate, the top of the fixed push rod is in contact fit with the push plate.
More preferably, the filter screen assembly further comprises a filter screen assembly, the filter screen assembly comprises a mounting ring, mounting bolts and isolation rods, the mounting ring is sleeved on the outer wall of the upper portion of the shell, the mounting bolts are connected to four sides of the mounting ring in a threaded mode through the shell, and the isolation rods are uniformly arranged on four sides of the mounting ring.
More preferably, the upper part of the fixed push rod is rotatably connected with a roller.
The invention has the beneficial effects that: 1. through the cooperation between extrusion subassembly and the coupling assembling, be convenient for go into the deep water district with the collection tank is dark, take a sample to the water in the deep water district, after the sample was accomplished, be convenient for take out the water sample.
2. Through the cooperation between buckle mechanism, trigger mechanism and the counter weight mechanism, can carry out the counter weight with this equipment for the speed of equipment downstream can support the collecting tank bottom simultaneously, in order to avoid the collecting tank unexpected when collecting the water sample to drop.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is an overall cross-sectional view of the present invention.
Fig. 3 is a partial cross-sectional view of the present invention.
Fig. 4 is a schematic partial perspective view of a first embodiment of the present invention.
Fig. 5 is a schematic perspective view of the trigger mechanism of the present invention.
Fig. 6 is a second partial perspective view of the present invention.
Fig. 7 is a schematic partial perspective view of a first counterweight mechanism according to the present invention.
Fig. 8 is a schematic partial perspective view of a second counterweight mechanism according to the present invention.
Fig. 9 is a third partial perspective view of the present invention.
Fig. 10 is an enlarged view of part a of the present invention.
Fig. 11 is an enlarged view of part B of the present invention.
Number designation in the figures: 1. shell, 2, collecting tank, 3, protruding rod, 4, sealing cover, 5, extrusion assembly, 51, connecting seat, 52, supporting spring, 53, annular pressing plate, 6, connecting assembly, 61, mounting seat, 62, fixing bolt, 63, first connecting rod, 64, water outlet, 7, buckle mechanism, 71, fixing seat, 72, connecting frame, 73, first annular mounting frame, 74, guide sleeve, 75, first reset spring, 76, hook, 77, buckle seat, 8, trigger mechanism, 81, limiting rod, 82, second annular mounting frame, 83, spherical air bag, 84, second reset spring, 9, counterweight mechanism, 91, positioning rod, 92, third reset spring, 93, push plate, 94, second connecting rod, 95, third annular mounting frame, 96, fixing shaft rod, 97, volute spring, 98, hopper plate, 99, fixing push rod, 10, filter screen assembly, 101, 4, supporting spring, 53, annular pressing plate, 6, connecting assembly, fixing seat, 8, trigger mechanism, 81, limiting rod, 82, second annular mounting frame, fixing shaft rod, fixing rod, and fixing rod, and fixing rod, and fixing rod, and fixing rod, mounting ring, 102, mounting bolt, 103, spacer rod.
Detailed Description
The invention will be further described with reference to examples of embodiments shown in the drawings to which the invention is attached.
Example 1
The utility model provides a waters environmental monitoring water sample collection device for deep water district, as shown in fig. 1-3, including shell 1, holding vessel 2, nose bar 3, sealed lid 4, extrusion subassembly 5 and coupling assembling 6, four sides all are equipped with nose bar 3 around 2 middle part outer walls of holding vessel, 2 outside movable being connected with shell 1 in the holding vessel, shell 1 and the cooperation of 3 contacts of nose bar, threaded connection has sealed lid 4 in the middle of 2 tops of holding vessel, be equipped with extrusion subassembly 5 between shell 1 and 2 tops of holding vessel, be equipped with coupling assembling 6 on the shell 1.
The extrusion assembly 5 comprises a connecting seat 51, a supporting spring 52 and an annular pressure plate 53, the annular pressure plate 53 is arranged at the top of the collecting tank 2, the annular pressure plate 53 is positioned at the outer side of the collecting tank 2, the supporting spring 52 is arranged at the top of the annular pressure plate 53, the connecting seat 51 is arranged at the top of the supporting spring 52, and the top wall of the connecting seat 51 is connected with the inner top wall of the shell 1.
The connecting assembly 6 comprises a mounting seat 61, a fixing bolt 62 and a first connecting rod 63, the mounting seat 61 is covered on the top of the shell 1, the fixing bolt 62 is evenly connected between the mounting seat 61 and the top of the shell 1 in a threaded mode along the circumferential direction, the first connecting rod 63 is arranged in the middle of the top of the mounting seat 61, and water outlets 64 are formed in the front side and the rear side of the mounting seat 61.
When people need to take a sample in a deep water area, a rope can be tied on the first connecting rod 63, then the device is slowly put into water, so that the device falls into the deep water area downwards, stones or objects of some convex parts in the bottom of the collecting tank 2 and the deep water area are attached, the collecting tank 2 can move upwards to drive the annular pressing plate 53 to move upwards, the supporting spring 52 is compressed, water inlets are uniformly formed in the peripheries of the upper parts of the shell 1 and the collecting tank 2 at the moment, water in the deep water area flows into the shell 1 through holes formed in the upper part of the shell 1, the water flows into the collecting tank 2 from the water inlets to be collected, after water samples are collected, the device can be taken out, when stones or objects of some convex parts in the bottom of the collecting tank 2 and the deep water area are separated, the annular pressing plate 53 and the collecting tank 2 are driven to move and reset under the action of the supporting spring 52, the water inlet laminating that has was evenly opened to shell 1 and 2 upper portions peripheries of holding vessel this moment, during the unable gathering vessel 2 that flows in of water, this equipment took out the back in the water, unnecessary water was discharged from outlet 64, when needing to take out the water sample, can rotate at last collecting vessel 2 first rebound for protruding pole 3 can't block holding vessel 2, then just can take out collecting vessel 2, rotate and open sealed lid 4, can pour the water sample, will seal sealed lid 4 and rotate afterwards and reset, it can to reset collecting vessel 2.
Example 2
On the basis of embodiment 1, as shown in fig. 4 to 11, the locking device 7 further includes a locking mechanism 7, the locking mechanism 7 includes a fixing seat 71, a connecting frame 72, a first annular mounting frame 73, a guide sleeve 74, a first return spring 75, a hook 76 and a locking seat 77, the fixing seat 71 is disposed in the middle of the lower portion of the rear side of the housing 1, the connecting frame 72 is rotatably connected to the lower portion of the fixing seat 71, the first annular mounting frame 73 is disposed on the front side of the connecting frame 72, the guide sleeves 74 are connected to the left and right sides of the front portion of the first annular mounting frame 73, the hooks 76 are slidably connected to the guide sleeves 74, the first return spring 75 is disposed between the rear side of the hook 76 and the guide sleeve 74 on the same side, the locking seat 77 is connected to the left and right sides of the lower portion of the front side of the housing 1, and the locking seat 77 is locked to the hooks 76.
First annular mounting bracket 73 plays the effect of support to collection tank 2 bottom, in order to avoid collection tank 2 unexpected the droing when collecting the water sample, when needing to take out collection tank 2, can break away from pothook 76 backward and buckle seat 77, first reset spring 75 is compressed, loosen after pothook 76, under first reset spring 75's effect, drive pothook 76 and move forward and reset, first annular mounting bracket 73 is under the action of gravity simultaneously, make first annular mounting bracket 73 rotate downwards and break away from with shell 1 bottom, can take out collection tank 2 like this, take out the water sample after, will collect tank 2 and reset, rotate first annular mounting bracket 73 and reset, and then make pothook 76 block into in buckle seat 77.
Still including trigger mechanism 8, trigger mechanism 8 is including gag lever post 81, second annular mounting bracket 82, spherical gasbag 83 and second reset spring 84, and the first annular mounting bracket 73 outside evenly is equipped with three gag lever posts 81, is equipped with second annular mounting bracket 82 between the gag lever post 81 bottom, has placed spherical gasbag 83 between the gag lever post 81, is equipped with second reset spring 84 between roof and the interior diapire in the spherical gasbag 83.
When the device is deeply immersed in water, because the water pressure is changed along with the height of the water depth, the water depth is larger, the water pressure is larger, when the device enters the deep water area, the spherical air bag 83 is subjected to the water pressure, the periphery of the spherical air bag 83 is extruded, the upper side and the lower side of the spherical air bag 83 are protruded, the second reset spring 84 is stretched, the upper side of the spherical air bag 83 is protruded to jack up the collection tank 2 upwards, the water sample collection is realized, then people take the device out upwards, the spherical air bag 83 is not subjected to the water pressure, and under the action of the second reset spring 84, the spherical air bag 83 is driven to reset, so that the collection tank 2 is reset in a moving way.
The counterweight mechanism 9 comprises a positioning rod 91, a third return spring 92, a push plate 93, a second connecting rod 94, a third annular mounting rack 95, a fixed shaft rod 96, a volute spring 97, a hopper plate 98 and a fixed push rod 99, wherein the second connecting rod 94 is uniformly arranged at the bottom of the second annular mounting rack 82 along the circumferential direction, the third annular mounting rack 95 is arranged between the bottoms of the second connecting rods 94, the positioning rods 91 are respectively arranged at the front, back, left and right sides of the bottom of the second annular mounting rack 82, the positioning rods 91 are respectively positioned between the two adjacent second connecting rods 94, the push plate 93 is connected between the positioning rods 91 in a sliding manner, the third return spring 92 is respectively arranged between the front, back, left and right sides of the bottom of the push plate 93 and the lower part of the positioning rods 91, the fixed shaft rod 96 is respectively arranged at the front, back, left and right sides of the bottom of the third annular mounting rack 95, and the hopper plate 98 is rotatably connected on the fixed shaft rod 96, scroll springs 97 are arranged between two sides of the hopper plate 98 and the fixed shaft rod 96, fixed push rods 99 are arranged on the inner sides of the upper portions of the hopper plate 98, and the tops of the fixed push rods 99 are in contact fit with the push plates 93.
Can place the stone between hopper board 98, realize the effect of counter weight, open hopper board 98 to the outside, volute spring 97 is twisted, then pack the stone into hopper board 98, after the loose hand, under volute spring 97's effect, drive hopper board 98 and rotate and reset and press from both sides tight the stone, then put this equipment into water, under the action of gravity of stone, make this equipment accelerate downward movement, when spherical gasbag 83 bottom protrusion, push pedal 93 extrudees downwards, third reset spring 92 is compressed, push pedal 93 extrudees downwards and drives fixed push rod 99 and move downwards, make hopper board 98 open to the outside, volute spring 97 is twisted, the stone drops out automatically, after this equipment loses the counter weight, under spherical gasbag 83's floating action, make this equipment move upwards automatically, when spherical gasbag 83 bottom resets, under the effect of third reset spring 92, the push plate 93 is driven to move upwards for resetting, and the fixed push rod 99 and the hopper plate 98 are driven to rotate for resetting under the action of the volute spiral spring 97.
The novel filter screen assembly is characterized by further comprising a filter screen assembly 10, wherein the filter screen assembly 10 comprises a mounting ring 101, mounting bolts 102 and isolating rods 103, the mounting ring 101 is sleeved on the outer wall of the upper portion of the shell 1, the mounting bolts 102 are connected on the left side, the right side, the front side, the rear side and the front side of the mounting ring 101 through threads between the shell 1, and the isolating rods 103 are uniformly arranged on the front side, the rear side, the left side and the rear side of the mounting ring 101.
When the device is deep into water, plants and garbage in the water can contact with the device, and the substances can be blocked under the action of the isolating rod 103.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (8)
1. The utility model provides a waters environmental monitoring water sample collection device for deep water district, a serial communication port, including shell (1), holding vessel (2), nose bar (3), sealed lid (4), extrusion subassembly (5) and coupling assembling (6), four sides of holding vessel (2) middle part outer wall all are equipped with nose bar (3), the movable shell (1) that is connected with in holding vessel (2) outside, shell (1) and nose bar (3) contact cooperation, threaded connection has sealed lid (4) in the middle of holding vessel (2) top, be equipped with extrusion subassembly (5) between shell (1) and holding vessel (2) top, be equipped with coupling assembling (6) on shell (1).
2. A water sample collecting device for monitoring water area environment in a deep water area as claimed in claim 1, wherein the squeezing assembly (5) comprises a connecting base (51), a supporting spring (52) and an annular pressing plate (53), the annular pressing plate (53) is arranged at the top of the collecting tank (2), the annular pressing plate (53) is positioned at the outer side of the collecting tank (2), the supporting spring (52) is arranged at the top of the annular pressing plate (53), the connecting base (51) is arranged at the top of the supporting spring (52), and the top of the connecting base (51) is connected with the inner top wall of the casing (1).
3. A water sample collecting device for monitoring the environment of a deep water area as claimed in claim 2, wherein the connecting assembly (6) comprises a mounting seat (61), a fixing bolt (62) and a first connecting rod (63), the mounting seat (61) is covered on the top of the casing (1), the fixing bolt (62) is uniformly and spirally connected between the mounting seat (61) and the top of the casing (1) along the circumferential direction, the first connecting rod (63) is arranged in the middle of the top of the mounting seat (61), and water outlets (64) are formed on both sides of the mounting seat (61).
4. The water sample collecting device for monitoring the water area environment of the deep water area as claimed in claim 3, further comprising a fastening mechanism (7), wherein the fastening mechanism (7) comprises a fixing seat (71), a connecting frame (72), a first annular mounting frame (73), a guide sleeve (74), a first return spring (75), a hook (76) and a fastening seat (77), the fixing seat (71) is arranged on one side of the housing (1), the connecting frame (72) is rotatably connected to the lower portion of the fixing seat (71), the first annular mounting frame (73) is arranged on one side of the connecting frame (72), the guide sleeve (74) is connected to both sides of the front portion of the first annular mounting frame (73), the hook (76) is slidably connected to the guide sleeve (74), the first return spring (75) is arranged between one side of the hook (76) and the guide sleeve (74) on the same side, the fastening seat (77) is connected to both sides of the housing (1), the clamping seat (77) is clamped with the clamping hook (76).
5. The water sample collecting device for monitoring the water area environment of the deep water area as claimed in claim 4, further comprising a trigger mechanism (8), wherein the trigger mechanism (8) comprises a limiting rod (81), a second annular mounting frame (82), a spherical air bag (83) and a second reset spring (84), a plurality of limiting rods (81) are uniformly arranged on one side of the first annular mounting frame (73), the second annular mounting frame (82) is arranged between the bottoms of the limiting rods (81), the spherical air bag (83) is placed between the limiting rods (81), and the second reset spring (84) is arranged between the inner top wall and the inner bottom wall of the spherical air bag (83).
6. The water sample collecting device for monitoring the water area environment of the deep water area of claim 5, further comprising a counterweight mechanism (9), wherein the counterweight mechanism (9) comprises positioning rods (91), a third return spring (92), a push plate (93), second connecting rods (94), a third annular mounting frame (95), a fixed shaft rod (96), a volute spring (97), a hopper plate (98) and a fixed push rod (99), the second connecting rods (94) are uniformly arranged at the bottom of the second annular mounting frame (82) along the circumferential direction, the third annular mounting frame (95) is arranged between the bottoms of the second connecting rods (94), the positioning rods (91) are arranged on four sides of the bottom of the second annular mounting frame (82), the positioning rods (91) are respectively arranged between two adjacent second connecting rods (94), and the push plate (93) is slidably connected between the positioning rods (91), all be equipped with third reset spring (92) between push pedal (93) bottom four sides and locating lever (91) lower part, third annular mounting bracket (95) bottom four sides all are equipped with fixed axostylus axostyle (96), equal rotary type is connected with hopper board (98) on fixed axostylus axostyle (96), all be equipped with volute spiral spring (97) between hopper board (98) both sides and fixed axostylus axostyle (96), hopper board (98) upper portion inboard all is equipped with fixed push rod (99), fixed push rod (99) top and push pedal (93) contact cooperation.
7. The water sample collecting device for monitoring the water area environment of the deep water area as claimed in claim 6, further comprising a filter screen assembly (10), wherein the filter screen assembly (10) comprises a mounting ring (101), mounting bolts (102) and isolating rods (103), the mounting ring (101) is sleeved on the outer wall of the upper portion of the housing (1), the mounting bolts (102) are connected on four sides of the mounting ring (101) in a threaded manner through the housing (1), and the isolating rods (103) are uniformly arranged on four sides of the mounting ring (101).
8. The water sample collecting device for monitoring the water area environment of the deepwater zone as claimed in claim 7, wherein the upper part of the fixed push rod (99) is rotatably connected with a roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210014154.0A CN114441231B (en) | 2022-01-07 | 2022-01-07 | Water sample collection device for monitoring water area environment in deep water area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210014154.0A CN114441231B (en) | 2022-01-07 | 2022-01-07 | Water sample collection device for monitoring water area environment in deep water area |
Publications (2)
| Publication Number | Publication Date |
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| CN114441231A true CN114441231A (en) | 2022-05-06 |
| CN114441231B CN114441231B (en) | 2023-09-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210014154.0A Active CN114441231B (en) | 2022-01-07 | 2022-01-07 | Water sample collection device for monitoring water area environment in deep water area |
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| CN (1) | CN114441231B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117109967A (en) * | 2023-06-21 | 2023-11-24 | 生态环境部南京环境科学研究所 | Aquatic plant collection and specimen preparation device and method for flowing water area |
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| US20190242791A1 (en) * | 2016-10-13 | 2019-08-08 | Korea Water Resources Corporation | Press-type water sampling device |
| CN208383505U (en) * | 2018-08-03 | 2019-01-15 | 罗彦省 | A kind of environmental monitoring water quality sampling device |
| CN213689031U (en) * | 2020-12-07 | 2021-07-13 | 于桂梅 | Portable water sample collection system |
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| CN117109967A (en) * | 2023-06-21 | 2023-11-24 | 生态环境部南京环境科学研究所 | Aquatic plant collection and specimen preparation device and method for flowing water area |
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| Publication number | Publication date |
|---|---|
| CN114441231B (en) | 2023-09-12 |
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