CN214096705U - Water quality sampling device is administered to water environment - Google Patents

Water quality sampling device is administered to water environment Download PDF

Info

Publication number
CN214096705U
CN214096705U CN202022828355.3U CN202022828355U CN214096705U CN 214096705 U CN214096705 U CN 214096705U CN 202022828355 U CN202022828355 U CN 202022828355U CN 214096705 U CN214096705 U CN 214096705U
Authority
CN
China
Prior art keywords
sampling
water
groove
hole
tube
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202022828355.3U
Other languages
Chinese (zh)
Inventor
谢修全
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Shuide Environmental Technology Co ltd
Original Assignee
Jiangsu Shuide Environmental Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiangsu Shuide Environmental Technology Co ltd filed Critical Jiangsu Shuide Environmental Technology Co ltd
Priority to CN202022828355.3U priority Critical patent/CN214096705U/en
Application granted granted Critical
Publication of CN214096705U publication Critical patent/CN214096705U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Sampling And Sample Adjustment (AREA)

Abstract

The utility model discloses a water environment treatment water quality sampling device in the technical field of water quality sampling devices, which comprises a placing box, wherein a placing barrel is fixedly connected in the placing box, a first sampling groove is arranged in the center of the placing barrel, a second sampling groove is surrounded by the periphery of the first sampling groove, a third sampling groove is surrounded by the periphery of the second sampling groove, a filter screen is respectively connected in a sliding manner near the upper end in the first sampling groove, the second sampling groove and the third sampling groove, a sealing cover is connected in the third sampling groove near the upper end by screw threads, a first sampling hole is arranged in the center of the sealing cover, and the first sampling hole is positioned above the first sampling groove; a first sampling tube is connected in the first sampling hole in a sliding manner; a second sampling hole is arranged around the first sampling hole, the second sampling hole is positioned above the second sampling groove, a third sampling hole is arranged around the second sampling hole, the third sampling hole is positioned above the third sampling groove, and the second sampling hole and the third sampling hole are respectively connected with a second sampling tube and a third sampling tube in a sliding manner; the utility model discloses portable.

Description

Water quality sampling device is administered to water environment
Technical Field
The utility model relates to an administer quality of water sampling device technical field, specifically be a water environment administers quality of water sampling device.
Background
Collecting a water sample of the polluted water body, and analyzing and determining to obtain basic data of water body pollution. The water sample for analysis should be representative and can reflect the chemical composition and characteristics of the water body. The sampling method, position, time, frequency and the like are determined according to the characteristics and the analysis purpose of the water body, along with the development of economy, water resources in various regions face serious pollution problems, an environmental protection department needs to regularly detect the water quality of dams, lakes and the like to ensure the water consumption safety of residents, the water quality of each water level section in the dams and lakes needs to be comprehensively detected and analyzed when the water quality is detected, and the water quality sampling is firstly carried out before the water quality detection.
But at present, need come accurate detection through sampling to different sampling points during water quality testing, but when sampling to different sampling points, all need carry a large amount of sampling tubes usually, inconvenient carrying.
Based on this, the utility model designs a water environment improvement quality of water sampling device to solve above-mentioned problem.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problem, the utility model provides a following technical scheme:
a water environment treatment water quality sampling device comprises a placing box, wherein a placing barrel is fixedly connected in the placing box, a first sampling groove is formed in the center of the placing barrel, a second sampling groove is formed in the periphery of the first sampling groove, a third sampling groove is formed in the periphery of the second sampling groove, filter screens are respectively connected to the positions, close to the upper ends, of the first sampling groove, the second sampling groove and the third sampling groove in a sliding mode, a sealing cover is connected to the positions, close to the upper ends, of the third sampling groove in a threaded mode, a first sampling hole is formed in the center of the sealing cover, and the first sampling hole is located above the first sampling groove; a first sampling tube is connected in the first sampling hole in a sliding manner; a second sampling hole is formed around the first sampling hole, the second sampling hole is positioned above the second sampling groove, a third sampling hole is formed around the second sampling hole, the third sampling hole is positioned above the third sampling groove, and the second sampling hole and the third sampling hole are respectively connected with a second sampling tube and a third sampling tube in a sliding manner; the other ends of the first sampling tube, the second sampling tube and the third sampling tube are respectively fixedly connected with the upper end of the connecting box; the connection points of the first sampling tube, the second sampling tube and the third sampling tube and the placing box are provided with water stopping clamps; place a box left end fixedly connected with fixed pipe No. one, fixed pipe threaded connection has a water pipe No. one, No. one water pipe other end threaded connection has fixed pipe No. two, No. two fixed pipe other end fixedly connected with miniature pump, the fixed pipe No. three of miniature pump left side fixedly connected with, No. three fixed pipe threaded connection have the water pipe No. two.
As a further proposal of the utility model, the filter screen formula that is equipped with in a sample groove, No. two sample grooves, No. three sample grooves is as an organic whole. During operation, the filter screen can be detached and cleaned at one time, and the integrated filter screen is convenient to take and clean.
As a further scheme of the utility model, No. two thief holes evenly distributed around a thief hole, No. three thief holes evenly distributed around No. two thief holes, No. two thief tubes, No. three thief tube one end are cross shape. During operation, the cross shape of No. two sampling tubes, No. three sampling tube one end corresponds No. two thief holes, No. three thief holes of each evenly distributed on the closing cap, and No. two thief holes, No. three thief holes of evenly distributed are water-passing simultaneously, have improved the speed of water-passing.
As a further scheme of the utility model, the stagnant water clamp includes the fixed plate No. one, fixed plate upper end is close to left and right sides both ends fixedly connected with fixed column respectively, fixed column other end fixedly connected with fixed plate No. two, sliding connection has the movable plate on the fixed column, No. two fixed plate threaded connection have the screw, the screw lower extreme rotates with the movable plate to be connected. When the sampling tube water feeding device works, when the first sampling tube needs to be fed with water, the screws of the water stop clamps on the second sampling tube and the third sampling tube are screwed, the screws move downwards and simultaneously abut against the moving plate to move downwards on the fixed column, and the screws and the fixed plate clamp the second sampling tube and the third sampling tube together to prevent the second sampling tube and the third sampling tube from being fed with water when the first sampling tube is fed with water; the water of different sampling points can be sampled, need not carry many sampling tubes and prevent simultaneously that the water of different sampling points from mixing together, influence the testing result.
As a further scheme of the utility model, fixed pipe, No. two fixed pipes, No. three fixed pipes are the hard tube, No. one water pipe, No. two water pipes are the hose. During operation, the hard tube is convenient for connecting the hose, and the hose is convenient for rolling up and storing.
As a further proposal of the utility model, both sides fixedly connected with receiver around placing the box, the movable ring is taken to both ends fixedly connected with about the receiver. When the water pump works, the storage box is used for placing the connecting box, the first water pipe, the second water pipe and the small water pump which are detached; the whole device is convenient to lift by taking the movable ring, and is convenient to carry.
As a further proposal of the utility model, one side of the connecting box is hinged with a sealing door. The during operation opens the sealing door after the water of a sampling point has been sampled, is convenient for clear up the connecting box, prevents that remaining water in the connecting box from influencing the sample of next sampling point, prevents to influence the testing result.
Advantageous effects
Compared with the prior art, the beneficial effects of the utility model are that:
1. through the cooperation use of closing cap, a sample groove, No. two sample grooves, No. three sample grooves, a sampling tube, No. two sampling tubes, No. three sampling tubes, stagnant water clamp isotructure, control the stagnant water on a sampling tube, No. two sampling tubes, No. three sampling tubes and press from both sides, make the water of each sampling point let in a sample groove, No. two sampling tubes, No. three sample grooves respectively from a sampling tube, No. two sampling tubes, No. three sample grooves, three sample groove is integrative, portable.
2. Through the cooperation use of a sampling tube, No. two sampling tubes, No. three sampling tubes, stagnant water clamp, connecting box, closed door isotructure, the water of each sampling point is from a sampling tube, No. two sampling tubes, No. three sampling tubes respectively through controlling the stagnant water clamp and letting in different sample chutes, can open the closed door simultaneously and clear up the water that last sampling point remained in the connecting box, prevents that remaining water in the connecting box from influencing the sample of next sampling point, prevents to influence the testing result.
3. The two ends of the first water pipe are respectively in threaded connection with the first fixed pipe and the second fixed pipe, the second water pipe is in threaded connection with the third fixed pipe, the first fixed pipe and the second fixed pipe are detachable and convenient to clean, and meanwhile the connecting box, the first water pipe, the second water pipe and the small water pump are placed in the storage box; the whole device is convenient to lift by taking the movable ring, and is convenient to carry.
4. Through an integral screen. During operation, the filter screen can be detached and cleaned at one time, and the integrated filter screen is convenient to take and clean.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an enlarged view of a portion A of FIG. 1 according to the present invention;
FIG. 3 is a cross-sectional view of a first sampling groove of the present invention;
fig. 4 is a schematic top view of the filter screen of the present invention;
FIG. 5 is a schematic bottom view of the filter screen of the present invention;
fig. 6 is a rear view schematically illustrating fig. 1 according to the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1-placing box, 2-placing cylinder, 3-first sampling groove, 4-second sampling groove, 5-third sampling groove, 6-filter screen, 7-closing cover, 8-first sampling hole, 9-first sampling tube, 10-second sampling hole, 11-third sampling hole, 12-second sampling tube, 13-third sampling tube, 14-connecting box, 15-water stop clamp, 16-first fixing tube, 17-first water pipe, 18-second fixing tube, 19-small water pump, 20-third fixing tube, 21-second water pipe, 22-first fixing plate, 23-fixing column, 24-second fixing plate, 25-moving plate, 26-screw, 27-storage box, 28-moving ring and 29-closing door.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides a technical solution:
a water environment treatment water quality sampling device comprises a placing box 1, wherein a placing barrel 2 is fixedly connected in the placing box 1, a first sampling groove 3 is formed in the center of the placing barrel 2, a second sampling groove 4 is formed in the periphery of the first sampling groove 3, a third sampling groove 5 is formed in the periphery of the second sampling groove 4, a filter screen 6 is respectively connected to the inner parts, close to the upper end, of the first sampling groove 3, the second sampling groove 4 and the third sampling groove 5 in a sliding mode, a sealing cover 7 is connected to the inner part, close to the upper end, of the third sampling groove 5 in a threaded mode, a first sampling hole 8 is formed in the center of the sealing cover 7, and the first sampling hole 8 is located above the first sampling groove 3; a first sampling tube 9 is connected in the first sampling hole 8 in a sliding manner; a second sampling hole 10 is arranged around the first sampling hole 8, the second sampling hole 10 is positioned above the second sampling groove 4, a third sampling hole 11 is arranged around the second sampling hole 10, the third sampling hole 11 is positioned above the third sampling groove 5, and the second sampling hole 10 and the third sampling hole 11 are respectively connected with a second sampling tube 12 and a third sampling tube 13 in a sliding manner; a connecting box 14 is arranged at the left of the placing box 1, and the other ends of the first sampling tube 9, the second sampling tube 12 and the third sampling tube 13 are respectively fixedly connected with the upper end of the connecting box 14; the connection points of the first sampling tube 9, the second sampling tube 12, the third sampling tube 13 and the placing box 1 are provided with water stopping clamps 15; place 1 left end fixedly connected with fixed pipe 16 No. one of box, fixed 16 threaded connection of pipe has water pipe 17 No. one, and 17 other ends threaded connection of water pipe has fixed pipe 18 No. two, and 18 other ends fixedly connected with miniature pump 19 of fixed pipe No. two, 19 three fixed pipes 20 of fixedly connected with in miniature pump 19 left side, and 20 threaded connection of fixed pipe has water pipe 21 No. two.
As an embodiment of the utility model, the filter screen 6 formula that is equipped with in No. 3, No. 4, No. 5 sample grooves of a sample groove is as an organic whole. During operation, the filter screen 6 can be detached and cleaned at one time, and the integrated filter screen 6 is convenient to take and clean.
As an embodiment of the utility model, No. two thief holes 10 evenly distributed around a thief hole 8, No. three thief holes 11 evenly distributed around No. two thief holes 10, No. two sampling tubes 12, No. three sampling tubes 13 one end are cross shape. During operation, the cross shape of one end of the second sampling tube 12 and one end of the third sampling tube 13 correspond to the second sampling hole 10 and the third sampling hole 11 which are uniformly distributed on the sealing cover 7, and the second sampling hole 10 and the third sampling hole 11 which are uniformly distributed are simultaneously filled with water, so that the water filling speed is improved.
As an embodiment of the utility model, the stagnant water clamp 15 includes fixed plate 22 No. one, and both ends difference fixedly connected with fixed column 23 about fixed plate 22 upper end is close to, and fixed column 23 other end fixedly connected with No. two fixed plates 24, sliding connection have the movable plate 25 on the fixed column 23, and No. two fixed plate 24 threaded connection have screw 26, and the screw 26 lower extreme rotates with movable plate 25 to be connected. When the sampling tube 9 needs to be watered, the screw 26 of the water stop clamp 15 on the second sampling tube 12 and the third sampling tube 13 is screwed, the screw 26 pushes against the moving plate 25 to move downwards on the fixed column 23 while moving downwards, and the screw and the fixed plate 22 clamp the second sampling tube 12 and the third sampling tube 13 together, so that the second sampling tube 12 and the third sampling tube 13 are prevented from being watered when the first sampling tube 9 is watered; the water of different sampling points can be sampled, need not carry many sampling tubes and prevent simultaneously that the water of different sampling points from mixing together, influence the testing result.
As an embodiment of the utility model, fixed pipe 16, No. two fixed pipes 18, No. three fixed pipes 20 are the hard tube, and a water pipe 17, No. two water pipes 21 are the hose. During operation, the hard tube is convenient for connecting the hose, and the hose is convenient for rolling up and storing.
As an embodiment of the utility model, both sides fixedly connected with receiver 27 around placing box 1, both ends fixedly connected with about receiver 27 take the movable ring 28. When the water pump works, the storage box 27 is used for storing the connecting box 14, the first water pipe 17, the second water pipe 21 and the small water pump 19 which are detached; the handling ring 28 facilitates lifting the entire device and is portable.
As an embodiment of the present invention, a closing door 29 is hinged to one side of the connection box 14. During operation, open the closing door 29 after the water of a sampling point is sampled, be convenient for clear up the connecting box 14, prevent that remaining water in the connecting box 14 from influencing the sample of next sampling point, prevent to influence the testing result.
One specific application of this embodiment is:
inserting a first sampling tube 9 into a first sampling hole 8, simultaneously respectively inserting cross-shaped ends of a second sampling tube 12 and a third sampling tube 13 into a second sampling hole 10 and a third sampling hole 11 which are uniformly distributed on a sealing cover 7, respectively connecting two ends of a first water tube 17 with a first fixing tube 16 and a second fixing tube 18, simultaneously connecting a second water tube 21 with a third fixing tube 20, putting the second water tube 21 into sampled water, starting a small water pump 19, and enabling the water to enter a connecting box 14 through the first water tube 17, wherein water needs to be sealed on water stopping clamps 15 on the second sampling tube 12 and the third sampling tube 13, water is introduced into a first sampling groove 3 from the first sampling tube 9, and small impurities in the water are filtered when passing through a filter screen 6, so that the detection is more convenient; after the first sampling point is sampled, the hinged closing door 29 on the connecting box 14 is opened, the residual water in the connecting box 14 is cleaned, the residual water in the connecting box 14 is prevented from influencing the sampling of the next sampling point, the detection result is prevented from being influenced, after the cleaning is finished, the water stop clamp 15 on the first sampling pipe 9 is closed, the water stop clamp 15 on the second sampling pipe 12 is opened, and the water is introduced into the second sampling groove 4 in the same way; after the third sampling groove 5 needs to be filled with water, the connecting box 14 is cleaned up and the operation is continued; a first sampling groove 3, a second sampling groove 4 and a third sampling groove 5 are arranged in one placing cylinder 2, water at different sampling points can be sampled and simultaneously passes through a first sampling tube 9, a second sampling tube 12 and a third sampling tube 13, and the water at the previous sampling point does not influence the water at the next sampling point due to the cleaning of a connecting box 14; meanwhile, a plurality of sampling tubes are not required to be carried, so that the portable medical instrument is convenient to carry; meanwhile, two ends of the first water pipe 17 are respectively in threaded connection with the first fixing pipe 16 and the second fixing pipe 18, the second water pipe 21 is in threaded connection with the third fixing pipe 20, and therefore the first water pipe 17 and the second water pipe 21 are detachable and convenient to clean, and meanwhile the connecting box 14, the detached first water pipe 17, the detached second water pipe 21 and the detached small water pump 19 are placed in the storage box 27; the handling ring 28 facilitates lifting the entire device and is portable.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims (7)

1. The utility model provides a water quality sampling device is administered to water environment, is including placing box (1), its characterized in that: a placing barrel (2) is fixedly connected in the placing box (1), a first sampling groove (3) is formed in the center in the placing barrel (2), a second sampling groove (4) is formed in the periphery of the first sampling groove (3), a third sampling groove (5) is formed in the periphery of the second sampling groove (4), a filter screen (6) is respectively connected in the first sampling groove (3), the second sampling groove (4) and the third sampling groove (5) in a sliding mode close to the upper end, a sealing cover (7) is connected in the third sampling groove (5) close to the upper end in a threaded mode, a first sampling hole (8) is formed in the center of the sealing cover (7), and the first sampling hole (8) is located above the first sampling groove (3); a first sampling tube (9) is connected in the first sampling hole (8) in a sliding manner; a second sampling hole (10) is formed around the first sampling hole (8), the second sampling hole (10) is located above the second sampling groove (4), a third sampling hole (11) is formed around the second sampling hole (10), the third sampling hole (11) is located above the third sampling groove (5), and the second sampling hole (10) and the third sampling hole (11) are respectively connected with a second sampling tube (12) and a third sampling tube (13) in a sliding mode; a connecting box (14) is arranged on the left of the placing box (1), and the other ends of the first sampling tube (9), the second sampling tube (12) and the third sampling tube (13) are respectively and fixedly connected with the upper end of the connecting box (14); the connection points of the first sampling tube (9), the second sampling tube (12), the third sampling tube (13) and the placing box (1) are provided with water stopping clamps (15); place box (1) left end fixedly connected with fixed pipe (16) No. one, fixed pipe (16) threaded connection has water pipe (17) No. one, water pipe (17) other end threaded connection has fixed pipe (18) No. two, No. two fixed pipe (18) other end fixedly connected with small-size water pump (19), fixed pipe (20) No. three of small-size water pump (19) left side fixedly connected with, fixed pipe (20) threaded connection has water pipe (21) No. two No. three.
2. The water environment treatment water quality sampling device of claim 1, wherein: the filter screen (6) that are equipped with in No. one sample groove (3), No. two sample grooves (4), No. three sample groove (5) formula as an organic whole.
3. The water environment treatment water quality sampling device of claim 1, wherein: no. two thief hole (10) evenly distributed around a thief hole (8), No. three thief hole (11) evenly distributed around No. two thief hole (10), No. two sampling tube (12), No. three sampling tube (13) one end are cross shape.
4. The water environment treatment water quality sampling device of claim 1, wherein: the water stop clamp (15) comprises a fixing plate (22), the upper end of the fixing plate (22) is close to the left end and the right end of the fixing plate (23) and is fixedly connected with a fixing column (23), the other end of the fixing column (23) is fixedly connected with a second fixing plate (24), the fixing column (23) is connected with a moving plate (25) in a sliding mode, the second fixing plate (24) is connected with a screw (26) in a threaded mode, and the lower end of the screw (26) is rotatably connected with the moving plate (25).
5. The water environment treatment water quality sampling device of claim 1, wherein: no. one fixed pipe (16), No. two fixed pipe (18), No. three fixed pipe (20) are the hard tube, No. one water pipe (17), No. two water pipe (21) are the hose.
6. The water environment treatment water quality sampling device of claim 1, wherein: place both sides fixedly connected with receiver (27) around box (1), both ends fixedly connected with takes movable ring (28) about receiver (27).
7. The water environment treatment water quality sampling device of claim 1, wherein: one side of the connecting box (14) is hinged with a closing door (29).
CN202022828355.3U 2020-12-01 2020-12-01 Water quality sampling device is administered to water environment Active CN214096705U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202022828355.3U CN214096705U (en) 2020-12-01 2020-12-01 Water quality sampling device is administered to water environment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202022828355.3U CN214096705U (en) 2020-12-01 2020-12-01 Water quality sampling device is administered to water environment

Publications (1)

Publication Number Publication Date
CN214096705U true CN214096705U (en) 2021-08-31

Family

ID=77454400

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202022828355.3U Active CN214096705U (en) 2020-12-01 2020-12-01 Water quality sampling device is administered to water environment

Country Status (1)

Country Link
CN (1) CN214096705U (en)

Similar Documents

Publication Publication Date Title
CN214096705U (en) Water quality sampling device is administered to water environment
CN204594718U (en) A kind of hermetically sealed second metering selective sampling stool sample box
CN108478237A (en) Urine collecting and detection components and urine collecting and detection device
CN215574130U (en) Water sample filtering device
CN209264358U (en) Sampler is used in a kind of detection of water pollution
CN207051023U (en) A kind of planktonic organism collector
CN215677795U (en) Water quality detection device for environmental detection
CN212432673U (en) Sampler for detecting fine chemical water environment
CN209878390U (en) Sampling device for sewage detection
CN212206762U (en) Device for collecting water sample in river
CN220961487U (en) Water quality analysis device
CN211262862U (en) Layered sampling device for water quality detection
CN209485783U (en) A kind of sewage sampling device
CN205707826U (en) A kind of case
CN207680640U (en) A kind of sampling sample adding device
CN207703551U (en) A kind of receiving cavate urine specimen collecting bag
CN211262870U (en) Pipeline water sample sampling device
CN215218160U (en) Water quality testing sampling equipment for environmental monitoring
CN206534904U (en) A kind of disposable negative pressure drainage bag with Novel sampler
CN211505473U (en) Portable multi-parameter water quality analyzer calibration box suitable for field
CN218199766U (en) Sample bag is deposited to sample
CN219224764U (en) Portable water quality detector for water quality detection
CN211066668U (en) Visual urine bucket
CN212432674U (en) Sampler for detecting fine chemical water environment
CN217261343U (en) Water sampling storage box for environmental detection

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant