CN113155546A - Sampling device and method for environmental monitoring - Google Patents
Sampling device and method for environmental monitoring Download PDFInfo
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- CN113155546A CN113155546A CN202110597804.4A CN202110597804A CN113155546A CN 113155546 A CN113155546 A CN 113155546A CN 202110597804 A CN202110597804 A CN 202110597804A CN 113155546 A CN113155546 A CN 113155546A
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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
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
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Abstract
The invention provides a sampling device and a method for environmental monitoring, which comprises a handle, a telescopic rod connected with the handle and a sampler arranged on the telescopic rod, wherein the rear end of the sampler is provided with an opening, a plurality of pistons are arranged in the sampler, a plurality of water inlets are sequentially arranged on the sampler at intervals, and a water inlet cover is arranged at each water inlet; the handle below is equipped with piston hand wheel and water inlet cover hand wheel, still corresponds at partial water inlet cover rear and is equipped with a linkage stop gear, linkage stop gear is set up to when a plurality of pistons move from front to back, progressively carries out interval spacing to a plurality of pistons to make the interior a plurality of independent water storage spaces that form of sampler. The invention can extract a plurality of water samples with specified depth at one time, and can fill water when sinking into the water bottom, thereby avoiding the problems of influencing sampling quality due to the generation of bubbles and the like.
Description
Technical Field
The invention mainly relates to the technical field related to water quality monitoring tools, in particular to a sampling device and method for environment monitoring.
Background
In the water quality sampling process, the domestic and foreign samplers are mainly divided into full-automatic unmanned sampling equipment and manual sampling equipment. Full-automatic unmanned sampling equipment cost and maintenance cost are expensive, and manpower sampling equipment adopts single-ported glass bottle more, can't solve the carminative technological difficulty of sampler in aqueous, hardly with the air evacuation at the water intaking in-process, and when sinking into submarine, because the air buoyancy in the bottle makes the sampler sink and receives the resistance, in the faster place of rivers, then can lead to floating of whole equipment to sway, consume the physical power of sampling personnel fast, more have simultaneously to be difficult to once only the defect to the water sample of the different degree of depth.
Disclosure of Invention
In order to solve the defects of the prior art, the invention provides a sampling device and a sampling method for environment monitoring from practical application by combining the prior art, which can extract a plurality of water samples with specified depths at one time, can be filled with water when sinking into the water bottom, and can not generate the problems of influencing sampling quality due to the generation of bubbles and the like.
In order to achieve the purpose, the technical scheme of the invention is as follows:
according to one aspect of the invention, a sampling device for environmental monitoring is provided, which comprises a handle, a telescopic rod connected with the handle, and a sampler arranged on the telescopic rod,
the rear end of the sampler is provided with an opening, a plurality of pistons are arranged in the sampler, the pistons are sealed and airtight, a plurality of water inlets are sequentially arranged on the sampler at intervals, and a water inlet cover is arranged at each water inlet;
a piston hand wheel and a water inlet cover hand wheel are arranged below the handle, a piston pull rope is wound on the piston hand wheel, and the piston pull rope is connected to the piston at the rearmost end; a water inlet cover pull rope is wound on the water inlet cover hand wheel and is sequentially connected with the water inlet cover corresponding to each water inlet from front to back;
at least one linkage limiting mechanism is correspondingly arranged behind part of the water inlet cover, and the linkage limiting mechanism is arranged to gradually limit the plurality of pistons at intervals when the plurality of pistons move from front to back, so that a plurality of independent water storage spaces are formed in the sampler.
Furthermore, each linkage limiting mechanism and the corresponding water inlet cover form a linkage relation, each linkage limiting mechanism comprises a first limiting part, and the first limiting parts act when the water inlet covers corresponding to the linkage limiting mechanisms are opened, so that the piston in front of the water inlet is limited at the front side of the water inlet.
Furthermore, the linkage limiting mechanism further comprises a second limiting part, the second limiting part is set to limit the position of the last piston when the water inlet cover corresponding to the linkage limiting mechanism is not opened, and the second limiting part acts to relieve limiting when the water inlet cover is opened.
The linkage limiting mechanism further comprises a pressing rod and a connecting rod assembly, one end of the pressing rod is fixedly connected with the corresponding water inlet cover, the other end of the pressing rod presses the second limiting part to enable one end of the second limiting part to extend into the sampler to form limiting when the water inlet cover is not opened, a pressure spring is connected to the second limiting part and used for enabling one end of the second limiting part to be ejected out of the sampler when the pressing rod is separated from the second limiting part;
the first limiting part and the second limiting part are connected through the connecting rod assembly, and when one end of the second limiting part is ejected out of the sampler, one end of the first limiting part extends into the sampler to form limiting.
Further, link assembly includes ejector pin, lever, bracing piece and depression bar, the second locating part is connected to ejector pin one end, and the other end is connected with lever one end is articulated, the lever other end is connected with the depression bar is articulated, the first locating part of depression bar connection, the bracing piece is used for supporting the lever.
Furthermore, a step is arranged at the front end of each piston, and the step is used for being inserted between the adjacent pistons when the first limiting piece acts.
Furthermore, except the water inlet cover at the foremost end, the rear parts of the other water inlet covers are provided with a corresponding linkage limiting mechanism.
Further, a piston pull rope guide ring and a water inlet cover pull rope guide ring are arranged on the telescopic rod, a piston wheel support is arranged at the rear end of the sampler, and a piston pull rope turning wheel is arranged on the piston wheel support;
the piston pull rope extends into the sampler from one end of the opening of the sampler through the piston pull rope guide ring and the piston pull rope turning wheel to be connected with the piston;
the water inlet cover pull rope is connected to the water inlet cover through the water inlet cover pull rope guide ring.
Furthermore, the joint of the telescopic rod and the sampler is provided with an adjusting rotating block which can be used for adjusting the angle of the sampler.
According to another aspect of the present invention, there is provided a sampling method for environmental monitoring, using the above sampling device, the method comprising the steps of:
s1, adjusting the telescopic rod to enable the sampler to penetrate to the depth of the required sampling;
s2, shaking the hand wheel of the water inlet cover, pulling out the water inlet cover at the foremost end through the pull rope of the water inlet cover, and opening the water inlet;
s3, shaking a piston hand wheel, pulling the rearmost piston to move backwards through a piston pull rope, enabling all pistons to move backwards under the sealing adsorption effect and the water pressure effect of a water inlet among the pistons, and enabling water to enter a sampler from the water inlet until all pistons move to a second limiting piece of a rear linkage mechanism and are blocked and positioned by the second limiting piece;
at this time, completing a sampling, and when the sampling is needed to be continued, the operation steps are as follows:
s4, adjusting the telescopic rod to enable the sampler to penetrate to the depth of the required sampling;
s5, shaking the hand wheel of the water inlet cover, pulling out the next water inlet cover through the pull rope of the water inlet cover, opening the water inlet, and then the corresponding linkage limiting mechanism acts along with the water inlet cover, so that the second limiting piece is relieved from limiting, and the first limiting piece limits the position of the piston in front of the water inlet;
s6, shaking a piston hand wheel, pulling a rearmost piston to move backwards through a piston pull rope, and moving the other pistons backwards under the sealing adsorption action and the water pressure action of a water inlet among the pistons, except the piston limited by the first limiting piece, so that water enters the sampler from the opened water inlet until the piston moves to a second limiting piece of the next linkage limiting mechanism and is blocked and positioned by the second limiting piece;
at this point, the sub-sampling is completed, and when further sampling is required, the steps S4-S6 are repeated.
The invention has the beneficial effects that:
1. according to the invention, water quality sampling is carried out by opening one side of the sampler and arranging the piston in the sampler, when the sampler sinks into the water bottom, water is filled into the opening to fill the sampler, so that the sampler can conveniently submerge, meanwhile, air exhaust is not required in the sampling process, bubble-free water taking in the whole process can be realized, minimal disturbance is caused to water flow, and the truth and reliability of sampling are ensured.
2. According to the invention, the piston in the sampler is controlled by the pull rope, so that the piston can extract water samples with specified depth, and the pistons can be automatically spaced, thereby forming a plurality of independent water storage spaces, ensuring the sealing isolation of water quality samples with different depths, and ensuring the reliability of water sample monitoring.
3. The stay cord control mode is matched with the linkage limiting mechanism, so that the sampler has the advantages of reasonable structural layout, ingenious design and convenience in operation, can effectively realize water quality sampling and automatic spacing between the pistons, and has the advantages of low manufacturing cost, simplicity in maintenance and convenience in use.
4. The invention can be expanded according to the actual use requirement, and is beneficial to realizing standardized design.
5. The sampling method provided by the invention is simple to operate, can automatically separate water intake, can take water samples of different depths at one time, can ensure the sealing isolation among the water samples, and ensures the truth and reliability of sampling.
Drawings
FIG. 1 is a schematic top view of the present invention.
Fig. 2 is a schematic diagram of a partial structure of the sampler of the present invention.
Fig. 3 is a first schematic view of the structure of the main viewing direction of the present invention.
Fig. 4 is a schematic structural diagram in the front view direction of the present invention.
Fig. 5 is a third schematic view of the front view direction structure of the present invention.
Fig. 6 is an enlarged view of the portion B in fig. 5.
Reference numerals shown in the drawings:
1, holding a handle; 2, a piston hand wheel; 3, pulling a piston rope; 4, a piston pull rope guide ring; 5, a first telescopic rod; 6, a second telescopic rod; 7, a third telescopic rod; 8, a sampler; 9 a piston wheel support; 10 piston pull rope change wheel; 11, a stop block; 12 a piston ring pull; 13 a first piston; 14 a second piston; 15 a third piston; 16 a first water inlet cover; 7 a second water inlet cover; 18 a second pressing lever; 19 a second compression spring; 20 a second pressure plug; 21 a third water inlet cover; 22 a third pressing lever; 23 a third pressure spring; 24 a third pressure plug; 25 water inlet cover pull rope; 26 a water inlet cover pull rope guide ring; 27 water inlet cover hand wheels; 28 a second ejector pin; 29 a second lever; 30 a second support bar; 31 a second compression bar; 32 a second shift lever; 33 a third lever; 34 a third support bar; 35 a third compression bar; the block is rotated 36.
Detailed Description
The invention is further described with reference to the accompanying drawings and specific embodiments. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and these equivalents also fall within the scope of the present application.
Fig. 1-6 are schematic diagrams of the related structures of the sampling device for environmental monitoring according to the present invention. In the present invention, taking fig. 3 as an example, one end (right end in the drawing) of the opening of the sampler is the rear end and the rear, and the other end is the front end and the front.
This device mainly includes handle 1, the telescopic link of being connected with handle 1, install sampler 8 on the telescopic link, it is specific, the telescopic link comprises first telescopic link 5, second telescopic link 6, third telescopic link 7, sampler 8 connects in 7 one end of third telescopic link through a rotatory piece 36, a plurality of telescopic links are used for adjusting sampler 8's sample position, the adjustable sampler angle of rotatory piece 36 to adapt to different sample demands.
The whole body of sampler 8 is a barrel formula structure, and its rear end sets up the opening, and front end and circumference are sealed, and sampler 8 is inside to be equipped with a plurality of pistons, and mutual sealing is airtight between a plurality of pistons, and is specific, both can sliding fit between piston and the 8 inner walls of sampler, can seal again, and also has sealed effect between the adjacent piston. Thus, when the rightmost piston moves to one side, the rest pistons move along with the piston under the sealing effect. A plurality of water inlets are sequentially arranged on the sampler 8 at intervals, and a water inlet cover is arranged at each water inlet; the water inlet quantity corresponds with piston quantity, and concrete quantity can set up according to the required sample number of times of sampler 8, and the lid of intaking is used for the sealed of water inlet, and the operatable is opened. The design of every sample water inlet is less, when not having the piston twitch, can not produce the exchange or produce few exchange with external rivers, can not influence the water sample monitoring.
A piston hand wheel 2 and a water inlet cover hand wheel 27 are respectively arranged on two sides below the handle 1, wherein a piston pull rope 3 is wound on the piston hand wheel 2, and the piston pull rope 3 is connected to the rearmost piston and used for pulling the piston to move in the sampler 8 when the piston hand wheel 2 rotates; the water inlet cover hand wheel 27 is wound with a water inlet cover pull rope 25, the water inlet cover pull rope 25 is sequentially connected with the water inlet cover corresponding to each water inlet from front to back, and therefore when the water inlet cover hand wheel 27 is rotated, each water inlet can be opened from front to back. Except the water inlet cover at the foremost end, the rear parts of the other water inlet covers are correspondingly provided with a linkage limiting mechanism, and the linkage limiting mechanism is mainly used for carrying out spacing limiting control on a plurality of pistons so as to form a plurality of independent water storage spaces in the sampler 8.
Preferably, the linkage limiting mechanism is in linkage with the corresponding water inlet cover, namely when the water inlet cover is opened, the linkage limiting mechanism is triggered to act. The linkage limiting mechanism mainly comprises a first limiting part and a second limiting part, and the first limiting part and the second limiting part are in linkage relation. The second locating part is mainly used for limiting the piston at the rearmost end, so that when the second locating part plays a limiting role, the piston in front of the second locating part can be limited at a proper position, and water sampling and isolation of the piston are completed. The second limiting part plays a limiting role when the water inlet cover is not opened, and when the water inlet cover is opened, the limiting role is relieved, and the piston can be guaranteed to move to the next working position smoothly. The first limiting part does not work when the water inlet cover is not opened, and when the water inlet cover is opened, the first limiting part is triggered to limit the piston at the front end of the water inlet, so that an independent water storage space is formed at the front end of the piston, and the piston cannot move after being limited by the first limiting part. The specific connection relationship between the first limiting member and the water inlet cover and the second limiting member refers to the following specific embodiments. When the sampling device is used, the water inlet covers can be opened step by step through the water inlet cover pull ropes 25, the sampled water can flow into the sampler 8 through the water inlets, and meanwhile, the interior of the sampler 8 is divided into a plurality of water storage spaces through the triggered linkage limiting mechanism, so that water quality sampling at a plurality of depths can be realized at one time.
In order to further explain the sampling device and the sampling method thereof, the present invention provides an embodiment, as shown in fig. 1 to 6, specifically, three pistons are provided, including a first piston 13, a second piston 14, and a third piston 15, which are arranged in sequence from back to front; the corresponding water inlets and the corresponding water inlet covers are three, the water inlet covers comprise a first water inlet cover 16, a second water inlet cover 17 and a third water inlet cover 21 which are sequentially arranged from front to back, and a linkage limiting mechanism is respectively arranged behind the second water inlet cover 17 and the third water inlet cover 21.
Wherein, the linkage limit mechanism behind the second water inlet cover 17 mainly comprises a second pressing rod 18; a second pressure spring 19; a second pressure plug 20; a second ejector pin 28; a second lever 29; a second support bar 30; a second presser bar 31; second gear lever 32. One end of a second pressing rod 18 is connected to the second water inlet cover 17, the other end of the second pressing rod is pressed on a second pressure plug 20, the second pressure plug 20 is a second limiting part at the moment, a second pressure spring 19 is arranged on the second pressure plug 20, and the lower end of the second pressure plug 20 extends into the sampler 8 under the action of the second pressing rod 18 to limit the piston. The second pressure plug 20 passes through a second ejector pin 28; a second lever 29; a second support bar 30; the lever-type structure formed by the second pressure rods 31 is connected with the second shift rod 32, at this time, the second shift rod 32 is a first limiting part, and the second shift rod 32 can downwards extend into a step gap between adjacent pistons when the second pressure plug 20 ascends, so that the pistons are limited.
The linkage limiting mechanism structure behind the third water inlet cover 21 mainly comprises a third pressing rod 22, a third pressure spring 23, a third pressure plug 24, a third lever 33, a third supporting rod 34 and a third pressure rod 35. The structure and the principle of the mechanism are the same as those of the previous linkage limiting mechanism.
The sampling method of the sampling device of the embodiment is as follows:
firstly, the rotating block 36 is adjusted according to the use environment, so that the angle of the whole sampler 8 is adjusted according to the sampling environment or the requirement of a user.
And secondly, adjusting the three telescopic rods to ensure that the whole sampling device can deeply reach the depth of required sampling, and during the period, the two hand wheels pay off along with the extension of the telescopic rods to ensure that the piston pull rope 3 and the water inlet cover pull rope 25 are always kept in a tightened state until reaching the specified depth.
Thirdly, the taking and placing method is explained by taking sampling depths of 1, 3 and 5 meters as examples:
the sampler 8 is held by hand at the handle 1 and goes deep into the position 5 meters under water, and the sampler 8 is gradually filled with water in the process of sinking due to the opening at the right end, and is completely filled with water when reaching the position 5 meters, and at the moment, the sampler reaches the sampling depth, and the state is shown in fig. 3.
Firstly, at the moment, a water inlet cover hand wheel 27 is shaken, the first water inlet cover 16 is pulled out of the hole through a water inlet cover pull rope 25, a first water inlet is opened, then a piston hand wheel 2 is shaken, a piston pull ring 12 is pulled through a piston pull rope turning wheel 10 through a piston pull rope 3, the piston pull ring 12 is connected with a first piston 13, and when the first piston 13 is pulled, water enters from the first water inlet along with the movement of the first piston 13 under the sealing adsorption effect among the pistons and the water pressure effect of the first water inlet until the first piston 13 reaches the second pressure plug 20 and is blocked by the second pressure plug 20. Because the sampler is in the process of sampling, water is arranged at the left end and the right end, so that no bubbles are generated in the sampling process, the disturbance to water flow is very small, and the sampling is a current depth water sample. At this point the sampling was completed at a depth of 5 meters. As shown in fig. 4.
Secondly, the sampler is lifted to the depth of 3 meters of water by a sampler worker, the hand wheel 27 of the water inlet cover is shaken, the second water inlet cover 17 is pulled out of the hole through the pull rope 25 of the water inlet cover, the second pressing rod 18 connected with the second water inlet cover 17 is pulled up, the pressing of the second pressing rod 18 is lost, the second pressure plug 20 is lifted under the elastic force of the second pressure spring 19, and the first piston 13 is not blocked any more. At the same time, after the second pressure plug 20 is raised, the second push rod 32 is pushed down by the second push rod 28 and the second lever 29, and is inserted between the second piston 14 and the third piston 15, thereby blocking the third piston 15. At the moment, the hand wheel 2 of the piston is shaken to pull the first piston 13 to continue to move rightwards, water flow enters from the second water inlet, and sampling in the depth of 3 m water is completed. As illustrated in fig. 5.
And thirdly, repeating the process of the second step to finish the sampling of the water depth of 1 meter. The sampler 8 is lifted out of the water surface, so far, water quality sampling at different depths is completed.
Therefore, the sampling device and the sampling method provided by the embodiment can respectively sample water qualities in different water depths through once launching, and can sample only one water depth at a time compared with the prior art, so that the efficiency is greatly higher; in the sampling process, no bubbles are generated, the disturbance of water flow cannot be caused, the sampling depth is real and reliable, and the intervals of water samples with different depths can be completed underwater.
Claims (10)
1. A sampling device for environmental monitoring comprises a handle, a telescopic rod connected with the handle and a sampler arranged on the telescopic rod, and is characterized in that,
the rear end of the sampler is provided with an opening, a plurality of pistons are arranged in the sampler, the pistons are sealed and airtight, a plurality of water inlets are sequentially arranged on the sampler at intervals, and a water inlet cover is arranged at each water inlet;
a piston hand wheel and a water inlet cover hand wheel are arranged below the handle, a piston pull rope is wound on the piston hand wheel, and the piston pull rope is connected to the piston at the rearmost end; a water inlet cover pull rope is wound on the water inlet cover hand wheel and is sequentially connected with the water inlet cover corresponding to each water inlet from front to back;
at least one linkage limiting mechanism is correspondingly arranged behind part of the water inlet cover, and the linkage limiting mechanism is arranged to gradually limit the plurality of pistons at intervals when the plurality of pistons move from front to back, so that a plurality of independent water storage spaces are formed in the sampler.
2. The environmental monitoring sampling device of claim 1, wherein each linkage limiting mechanism is in linkage relationship with its corresponding water inlet cover, and the linkage limiting mechanism comprises a first limiting member, and the first limiting member is configured to operate to limit a piston located in front of the water inlet to a front side of the water inlet when the water inlet cover corresponding to the linkage limiting mechanism is opened.
3. The sampling device for environmental monitoring according to claim 2, wherein the linkage limiting mechanism further comprises a second limiting member, the second limiting member is configured to limit the position of the rearmost piston when the water inlet cover corresponding to the linkage limiting mechanism is not opened, and the second limiting member is actuated to release the limiting when the water inlet cover is opened.
4. The sampling device for environmental monitoring according to claim 3, wherein the linkage limiting mechanism further comprises a pressing rod and a connecting rod assembly, one end of the pressing rod is fixedly connected with the corresponding water inlet cover, the other end of the pressing rod presses the second limiting member, so that one end of the second limiting member extends into the sampler to form a limiting position when the water inlet cover is not opened, and a pressure spring is connected to the second limiting member and used for enabling one end of the second limiting member to be ejected out of the sampler when the pressing rod is separated from the second limiting member;
the first limiting part and the second limiting part are connected through the connecting rod assembly, and when one end of the second limiting part is ejected out of the sampler, one end of the first limiting part extends into the sampler to form limiting.
5. The sampling device for environmental monitoring according to claim 4, wherein the connecting rod assembly comprises a top rod, a lever, a support rod and a pressure rod, one end of the top rod is connected with the second limiting member, the other end of the top rod is hinged with one end of the lever, the other end of the lever is hinged with the pressure rod, the pressure rod is connected with the first limiting member, and the support rod is used for supporting the lever.
6. The sampling device for environmental monitoring according to claim 3, wherein a step is provided at a front end of each piston for inserting between adjacent pistons when the first stopper is actuated.
7. The sampling device for environmental monitoring according to any one of claims 1 to 6, wherein a corresponding linkage limiting mechanism is provided behind the other water inlet covers except the water inlet cover at the foremost end.
8. The sampling device for environmental monitoring according to claim 1, wherein the telescopic rod is provided with a piston pull rope guide ring and a water inlet cover pull rope guide ring, the rear end of the sampler is provided with a piston wheel bracket, and the piston wheel bracket is provided with a piston pull rope turning wheel;
the piston pull rope extends into the sampler from one end of the opening of the sampler through the piston pull rope guide ring and the piston pull rope turning wheel to be connected with the piston;
the water inlet cover pull rope is connected to the water inlet cover through the water inlet cover pull rope guide ring.
9. The sampling device for environmental monitoring according to claim 1, wherein a rotation adjusting block for adjusting the angle of the sampler is provided at the connection between the telescopic rod and the sampler.
10. A sampling method for environmental monitoring using the sampling device according to any one of claims 1 to 9, the method comprising the steps of:
s1, adjusting the telescopic rod to enable the sampler to penetrate to the depth of the required sampling;
s2, shaking the hand wheel of the water inlet cover, pulling out the water inlet cover at the foremost end through the pull rope of the water inlet cover, and opening the water inlet;
s3, shaking a piston hand wheel, pulling the rearmost piston to move backwards through a piston pull rope, enabling all pistons to move backwards under the sealing adsorption effect and the water pressure effect of a water inlet among the pistons, and enabling water to enter a sampler from the water inlet until all pistons move to a second limiting piece of a rear linkage mechanism and are blocked and positioned by the second limiting piece;
at this time, completing a sampling, and when the sampling is needed to be continued, the operation steps are as follows:
s4, adjusting the telescopic rod to enable the sampler to penetrate to the depth of the required sampling;
s5, shaking the hand wheel of the water inlet cover, pulling out the next water inlet cover through the pull rope of the water inlet cover, opening the water inlet, and then the corresponding linkage limiting mechanism acts along with the water inlet cover, so that the second limiting piece is relieved from limiting, and the first limiting piece limits the position of the piston in front of the water inlet;
s6, shaking a piston hand wheel, pulling a rearmost piston to move backwards through a piston pull rope, and moving the other pistons backwards under the sealing adsorption action and the water pressure action of a water inlet among the pistons, except the piston limited by the first limiting piece, so that water enters the sampler from the opened water inlet until the piston moves to a second limiting piece of the next linkage limiting mechanism and is blocked and positioned by the second limiting piece;
at this point, the sub-sampling is completed, and when further sampling is required, the steps S4-S6 are repeated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110597804.4A CN113155546A (en) | 2021-05-31 | 2021-05-31 | Sampling device and method for environmental monitoring |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110597804.4A CN113155546A (en) | 2021-05-31 | 2021-05-31 | Sampling device and method for environmental monitoring |
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| CN113155546A true CN113155546A (en) | 2021-07-23 |
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| CN202110597804.4A Withdrawn CN113155546A (en) | 2021-05-31 | 2021-05-31 | Sampling device and method for environmental monitoring |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115343116A (en) * | 2022-10-20 | 2022-11-15 | 安徽燃博智能科技有限公司 | Water quality monitoring device for river channel environment management and detection method thereof |
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2021
- 2021-05-31 CN CN202110597804.4A patent/CN113155546A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115343116A (en) * | 2022-10-20 | 2022-11-15 | 安徽燃博智能科技有限公司 | Water quality monitoring device for river channel environment management and detection method thereof |
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Application publication date: 20210723 |