CN112985894A - Surface water sampling device's sampler - Google Patents
Surface water sampling device's sampler Download PDFInfo
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- CN112985894A CN112985894A CN201911216115.3A CN201911216115A CN112985894A CN 112985894 A CN112985894 A CN 112985894A CN 201911216115 A CN201911216115 A CN 201911216115A CN 112985894 A CN112985894 A CN 112985894A
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- water
- container
- sealing body
- sampler
- sealing
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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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/34—Purifying; Cleaning
Abstract
The invention relates to a sampler of a surface water sampling device. The sampler of the surface water sampling device comprises a water taking container, a sealing body and a sealing body lifting piece; the water taking container is provided with a sampling cavity for containing a water sample, the bottom surface of the sampling cavity is provided with a bottom water inlet, and the top of the sampling cavity is provided with an air outlet or a top water inlet; the top and the bottom of the water taking container are both provided with a pulling piece through hole, the pulling piece through hole at the top and the pulling piece through hole at the bottom correspond to each other up and down, and the sealing body pulling piece movably passes through the pulling piece through hole; the lower end of the sealing body lifting piece is connected with the sealing body, and the upper end of the sealing body lifting piece is used for being connected with the lowering and lifting device; one side that the seal is used for pulling with the seal and is connected is equipped with sealed cooperation portion, sealed cooperation portion be used for when the seal is pulled upwards with bottom water inlet sealed cooperation is in order to shutoff bottom water inlet. The problem that the dead weight of the existing sampler is large and the effective load is limited is solved by the scheme, and the sampler is simple in structure.
Description
Technical Field
The invention relates to a sampler of a surface water sampling device.
Background
Water resources are basic elements existing in human society, and the water environment monitoring provides basic technical support for reasonably utilizing the water resources, preventing environmental risks, stably handling sudden water environment pollution events and improving the level of law enforcement management. Sampling the surface water body is the starting point of the water environment monitoring work.
With the rapid development of unmanned aerial vehicles in recent years, surface water sampling based on unmanned aerial vehicles becomes possible. Compared with the traditional manual sampling, the unmanned aerial vehicle can adapt to a complex environment, can go deep into lakes or rivers which cannot be reached by people for sampling analysis, and is beneficial to ensuring the comprehensiveness of the final detection result; compare with static monitoring network, unmanned aerial vehicle can carry out nimble water sample collection, strengthens the key region and patrols and examines the dynamics. However, it should be noted that the sampler structure that present earth's surface water sampling based on unmanned aerial vehicle used is complicated and only the top is provided with the inlet opening, and it is not high to adopt water efficiency.
The current surface water sampling device based on unmanned aerial vehicle, for example the public agricultural many rotor unmanned aerial vehicle of chinese patent that publication number is CN104340364B, including hoist mechanism and sampler (be the sampling probe in the above-mentioned patent promptly), the sampler is equipped with the bottom water inlet at the top, need rely on the dead weight to sink completely in the aquatic and just can realize the sample, self needs to possess great weight, consequently to the limited unmanned aerial vehicle of load-carrying capacity and duration, payload can receive the restriction.
Disclosure of Invention
The invention aims to provide a sampler of a surface water sampling device, which solves the problem that the effective load is limited due to the large self weight of the existing sampler.
In order to solve the problems, the technical scheme of the sampler of the surface water sampling device is as follows:
a sampler of a surface water sampling device,
comprises a water taking container, a sealing body and a sealing body lifting piece;
the water taking container is provided with a sampling cavity for containing a water sample, the bottom surface of the sampling cavity is provided with a bottom water inlet, and the top of the sampling cavity is provided with an air outlet or a top water inlet;
the top and the bottom of the water taking container are both provided with a pulling piece through hole, the pulling piece through hole at the top and the pulling piece through hole at the bottom correspond to each other up and down, and the sealing body pulling piece can movably pass through the pulling piece through hole;
the lower end of the sealing body lifting piece is connected with the sealing body, and the upper end of the sealing body lifting piece is used for being connected with the lowering and lifting device;
the sealing body is used for being equipped with sealed cooperation portion with one side that the sealing body was carried and is drawn the piece and be connected, sealed cooperation portion be used for when the sealing body is carried upwards with bottom water inlet seal cooperation is in order to shutoff the bottom water inlet.
The invention has the beneficial effects that: the bottom is provided with the bottom water inlet, and a water sample can enter the water taking container from the bottom water inlet, so that the whole sampler is immersed in water without depending on a heavy counterweight, and the sampler does not need to have heavy weight per se, thereby being beneficial to lifting the effective load; simultaneously one side that the seal is used for being connected with the seal is carried and is drawn is equipped with sealed cooperation portion, and when the seal was carried and is drawn the piece pulling seal, the seal can cooperate with bottom water inlet, realizes the seal of seal to the bottom water inlet that sets up on the guide part, guarantees to store the water sample after the water intaking is accomplished, device simple structure, and the manufacturing of being convenient for is with low costs.
As the preferred technical scheme, the bottom of the water taking container is of a conical structure, the diameter of the top of the conical structure is larger than that of the bottom of the conical structure, and the bottom water inlet is formed in the small end of the conical structure.
Has the advantages that: the bottom of the sampler adopts a conical structure, so that a water inlet at the bottom of the sampler can enter water more, a water sample can enter the sampler conveniently, and meanwhile, the volume and the weight of a required sealing body can be reduced.
As a preferable technical scheme, the part of the water taking container, which is positioned at the upper end of the conical structure, is of a cylindrical structure, and the height of the water taking container is 2-2.6 times of the diameter of the cylindrical structure.
Has the advantages that: the height of the water taking container is 2 times to 2.6 times of the diameter of the cylindrical structure, and the automatic righting function of the water taking container in water can be better realized according to the size proportion, namely the conical structure is arranged below, and the cylindrical structure is arranged above, so that the water injection speed is favorably improved, and the condition that the common light water taking container transversely floats on the water surface can not occur; and can be convenient for after returning the positive back and mention, avoid mentioning the water that pours into when mentioning a large amount of leakages.
Preferably, the water intake container is made of plastic.
Has the advantages that: the plastic is light in weight, so that the effective load is improved, the cost of the plastic is low, and the manufacturing cost is reduced.
As the preferred technical scheme, the water taking container comprises a container body and a container connecting seat, wherein the container body is provided with a lower end opening, the container connecting seat is detachably connected to the lower end opening of the container body, and the bottom water inlet is formed in the bottom surface of the container connecting seat.
Has the advantages that: the container connecting seat can separate with the water intaking container, and the user can replace the container main part according to the demand.
As an optimal technical scheme, an external thread is arranged at an opening at the lower end of the container main body, an internal thread which is matched with the external thread is arranged in the container connecting seat, the internal thread is divided into at least two sections along the axis, and the diameter of one section of internal thread at the upper part in the two adjacent sections of internal threads is larger than that of one section of internal thread at the lower part.
Has the advantages that: the internal thread that sets up different specifications in the container connecting seat can realize coordinating the container main part of different bores, satisfies user's different demands.
As a preferred technical scheme, a pit is arranged on the bottom surface of the water taking container, the inner wall of the pit is of a spherical structure, and the bottom water inlet is arranged on the inner wall of the pit;
the sealing body is a sealing ball, and a sealing matching part of the sealing ball is made of elastic materials.
Has the advantages that: sunken can play the guide effect to the ball sealer, makes the ball sealer more accurately seal the bottom water inlet of water intaking container, and the bulge of ball sealer is elastic material, is favorable to guaranteeing the leakproofness of water intaking container bottom.
As a preferred technical scheme, the sealing ball is provided with a hollow inner cavity, and the hollow inner cavity is used for putting in and taking out a corresponding counterweight; the part of the sealing body pulling piece penetrating out of the top of the water taking container is provided with a stopping structure, and the stopping structure is used for being matched with the top surface of the water taking container in a stopping way so as to press the water taking container under the action of the balance weight.
Has the advantages that: the weight of the sealing ball can be changed for different water taking environments, better sampling can be achieved in certain scenes, and if wind exists, the situation that the position deviation between the sampler and the unmanned aerial vehicle is too large when the water taking device is thrown and the sampling point is inaccurate can be avoided due to the counter weight, and the problem that the sampling time is longer due to the fact that a rope required by the sampler for taking water is longer when wind exists can also be avoided; in addition, in the scene that the water body is shallow and the water taking container is difficult to be completely immersed in water, the problem that the water sample leaks too fast when the water taking container is inclined or even horizontally laid due to the fact that the water taking container cannot be perpendicular to the water surface due to insufficient water entering of the water taking container and then lifting can be solved by the aid of the counter weight, and the conical bottom of the water taking container cannot float on the water surface.
According to a preferable technical scheme, the sealing body pulling piece is a steel wire rope, the upper end of the sealing body pulling piece is connected with the corresponding hoisting rope through a connecting ring, and the stopping structure is formed by the connecting ring.
Has the advantages that: the steel wire rope can be prevented from being wound, the connection strength can be guaranteed, meanwhile, the connecting ring is arranged between the sealing body pulling piece and the winding rope, the sealing body pulling piece and the winding rope can be conveniently connected in a switching mode, a stopping structure can be formed, and the structure is simple.
As a preferable technical scheme, the water passing channel is of a porous structure, and the porous structure forms a filtering opening.
Has the advantages that: the water passage adopts a porous structure to form a filter opening, thereby filtering impurities in a water sample and being beneficial to improving the sampling accuracy.
Drawings
FIG. 1 is a general schematic diagram of one embodiment of a sampler of a surface water sampling apparatus of the present invention;
fig. 2 is a schematic structural view of a fixing bracket of the unmanned aerial vehicle;
FIG. 3 is a schematic view of the lowering and raising apparatus in a casting position;
FIG. 4 is a schematic view of the lowering and raising device in a winding state;
FIG. 5 is an enlarged view of the second wheel body;
FIG. 6 is a schematic view of a container body;
FIG. 7 is a cross-sectional view of the container attachment socket;
FIG. 8 is a schematic view of the upper closure of the container body;
FIG. 9 is a top view of the container coupling socket;
fig. 10 is a schematic structural view of a sealing ball.
In the attached drawings, 1-an unmanned aerial vehicle fixing frame; 2-lowering the lifting device; 3-connecting rings; 4-a container body; 5-a container connecting seat; 6-sealing ball; 101-longitudinal fixation rod; 102-a transverse fixation bar; 103-a first mounting hole; 104-mounting hole two; 105-an elongated hole; 106-mounting hole III; 201-fixing the bracket one; 202-fixing a second bracket; 203-wheel body one; 204-wheel body two; 205-an electromagnetic drive; 206-a drive motor; 207-telescopic main shaft; 208-driving the rotating shaft; 209-fastening screw; 210-hoisting rope; 401-upper cover plate; 402-mounting holes; 403-container neck; 404-pulling through the hole; 405-a top water inlet; 406-a cable tie; 500-filter disc; 501-adapting a first thread; 502-adapting thread two; 503-water inlet hole; 504-pilot hole; 601-sealing body pulling piece; 602-upper hemisphere; 603-lower hemisphere.
Detailed Description
Fig. 1 to 10 show an embodiment of a sampler of a surface water sampling device according to the present invention, which includes an unmanned aerial vehicle fixing frame 1, a lowering and lifting device 2, a connecting ring 3, and a sampler.
The sampler comprises a container body 4, a container connecting seat 5 and a sealing ball 6, the specific structure of the container body 4 is shown in figure 6, and the upper part of the container body 4 is cylindrical and the lower part of the container body is in an inverted cone shape. The geometry of the container body 4 is such as to ensure that the ratio between the height of the container body 4 and the diameter of the cylindrical portion is between 2 and 2.6, in order to better perform the self-righting function of the container for taking water. The inverted cone-shaped end of the container body 4 is a container neck 403 for connecting the container connecting seat 5; the top end of the container body 4 is provided with an opening, and an upper cover plate 401 is arranged at the opening. As shown in fig. 8, the upper cover plate 401 has a pull through hole 404 at the center, and the diameter of the connection ring 3 is larger than that of the pull through hole 404 to form a stop structure; a plurality of top water inlet holes 405 are arranged around the lifting piece through hole 404, a plurality of binding belts 406 are arranged on the edge of the upper cover plate 401 and penetrate through the mounting hole 402 at the top end of the container body 4 to fix the upper cover plate 401 at the top of the container body 4.
The specific structure of the container connecting base 5 is shown in fig. 7, the container connecting base 5 is connected with a container neck 403 at the bottom end of the container body 4, an axial through hole is arranged at the center of the container connecting base 5, and the axial through hole is a step hole and comprises a large-diameter section at the upper part and a small-diameter section at the lower part. The inner wall of the large-diameter section is provided with internal threads to form a first adapting thread 501; the inner wall of the upper half part of the small diameter section is provided with internal threads to form a second adapting thread 502, and the first adapting thread 501 and the second adapting thread 502 are respectively used for connecting container bodies 4 with different sizes of container necks 403. The lower part opening of path section forms the bottom water inlet, supplies water appearance to get into in the sampler during the sample. As shown in fig. 9, a filter 500 is fixed to an axial middle portion of the small diameter section, and a guide hole 504 is formed in the center of the filter 500, and the guide hole 504 forms a pull through hole through which the pull 601 passes. A plurality of bottom water inlet holes 503 are further formed around the guide hole 504, and water samples can enter the bottom water inlet holes 503 and larger foreign matters can be filtered out.
The structure of the sealing ball 6 is shown in fig. 10, the outer shell of the sealing ball 6 is made of elastic material, such as rubber, silicon gel, etc., the sealing ball 6 is composed of an upper hemisphere 602 and a lower hemisphere 603, an adapter ring is fixed on the upper end of the upper hemisphere 602, the adapter ring is connected with a sealing body lifting piece 601, and in order to avoid the interference between the adapter ring and the guide hole 504, the diameter of the adapter ring should be smaller than the diameter of the guide hole 504. Of course, in other embodiments, the adapter ring may not be provided, and the sealing body pulling member 601 may be directly connected to the sealing ball. The sealing body pulling piece 601 is a steel wire rope, and the upper end of the steel wire rope passes through the pulling piece through hole 404 and is connected with the connecting ring 3; the cavity is formed when the lower hemisphere 603 and the upper hemisphere 602 are closed, objects can be placed inside the cavity for balancing weight, the sealing ball 6 is submerged when the water sample container is used, and the water sample is not prevented from flowing into the container body 4. During the use, the top of upper hemisphere 602 forms sealed arch, and sealing body pull 601 pulls sealed ball 6 and makes the top of upper hemisphere 602 and container connecting seat 5 bottom combine to form sealedly, the shutoff bottom water inlet plays the effect of valve.
As shown in fig. 2, the fixing frame of the unmanned aerial vehicle comprises two transverse fixing rods 102 and two longitudinal fixing rods 101, and the two transverse fixing rods 102 are arranged at two ends of the two longitudinal fixing rods 101. Both ends of all the fixing bars are provided with long holes 105 elongated in the axis direction of the fixing bars. Two mounting holes III 106 are also respectively formed in the positions, close to the long holes 105, of the two transverse fixing rods 102, and screws penetrate through the four mounting holes III 106 in the two transverse fixing rods 102 and the four long holes 105 in the two longitudinal fixing rods 101 to fix the two longitudinal fixing rods 101 between the two transverse fixing rods 102; the middle parts of the two longitudinal fixing rods 101 are respectively provided with a first mounting hole 103 and a second mounting hole 104 which are used for connecting a first fixing support 201 and a second fixing support 202 of the sampling device. When installing the unmanned aerial vehicle mount, the slot hole can be used for adjusting the installation allowance, is used for the unmanned aerial vehicle of the not equidimension of adaptation.
As shown in fig. 3 to 5, the lowering and lifting device 2 includes a first fixed bracket 201, a second fixed bracket 202, a first wheel body 203, a second wheel body 204, an electromagnetic driving device 205, a driving motor 206, a telescopic spindle 207, a driving shaft 208, a fastening screw 209, and a hoisting rope 210.
The upper end of the first fixing support 201 is fixed on the first mounting hole 103 of the longitudinal fixing rod 101, the upper end of the second fixing support 202 is fixed on the second mounting hole 104 of the longitudinal fixing rod 101, the right end of the first fixing support 201 is provided with an electromagnetic driving device 205, and the electromagnetic driving device 205 is an electromagnet to form a telescopic driving device. The telescopic main shaft 207 is fixed on an iron core on the electromagnetic driving device 205, and is telescopic along with the iron core to drive the telescopic main shaft 207 to move left and right. The right end of the telescopic main shaft 207 is rotatably provided with a wheel body one 203.
The left end of the second fixed support 202 is provided with a driving motor 206, the driving motor 206 comprises a driving rotating shaft 208, the second wheel body 204 is fixed on the driving rotating shaft 208, and the driving motor 206 rotates to drive the driving rotating shaft 208 to rotate the second wheel body 204. Fig. 5 is an enlarged view of the second wheel body 204, and a fastening screw 209 is mounted on the inclined groove wall of the second wheel body 204 for mounting the hoisting rope 210.
A connection ring 3 is arranged between the lowering and lifting device 2 and the sampler for connecting the hoisting rope 210 and the sealing body lifting member 601. In this embodiment, the sealing body lifting member 601 is a steel wire rope.
When using, the user at first fixes sampling device on unmanned aerial vehicle through unmanned aerial vehicle mount 1. Sampling personnel carry out the remote control through remote controller when sampling work begins, control unmanned aerial vehicle flight, reach the target area back at unmanned aerial vehicle, hover above the surface of water, remote controller sends the sampling instruction, the electromagnetic drive device 205 switch on among the hoisting device 2 is transferred in the control, flexible main shaft 207 contracts thereupon, with the separation of wheel body one 203 and two 204 wheels, form unwrapping wire interval x, the winding rope 210 that originally twines on the winding wire inslot that wheel body one 203 and two 204 wheels formed begins the landing, with this quick jettison that realizes the sampler. After the throwing is finished, the electromagnetic driving device 205 is controlled to be powered off, the telescopic main shaft 207 is in the extending state, and the first wheel body 203 and the second wheel body 204 are closed again to form a winding groove, as shown in fig. 4. When the sampler starts to sample, the sealing ball 6 drives the connecting ring 3 to sink, the blocking structure formed by the connecting ring 3 drives the water taking container 4 to descend for taking water, a water sample enters the container body 4 from the water inlet 503 of the sampler, after the water is filled, the gravity center is changed due to the structural characteristics of the container body 4, and the position of the container body 4 is adjusted to be in a self-righting state with the cylindrical section on the top and the inverted conical section on the bottom. After the sampling is completed, the sampling personnel control the driving motor 206 to rotate by utilizing the remote controller, the hoisting rope 210 is driven to be wound on the winding groove, the hoisting rope 210 drives the sealing ball 6 to ascend, the upper hemisphere 602 of the sealing ball 6 is combined with the spherical groove on the bottom surface of the container connecting seat 5 to form sealing fit, and the water sample is guaranteed to be stored in the container body 4. When the top of container body 4 exposes the surface of water, control driving motor 206 stall, unmanned aerial vehicle carries the water sample to return, accomplishes a water sample collection.
In this embodiment, the sealing body is provided as a sealing ball 6, in other embodiments, the sealing body may be provided in other shapes, such as a conical shape, and the conical surface of the conical sealing body is covered with an elastic material, so that sealing can be achieved.
In this embodiment, the sealing body housing is made of an elastic material, in other embodiments, the sealing body may also be made of a rigid material, such as stainless steel, at this time, the elastic material may be installed on the upper surface of the stainless steel sealing body, or a sealing ring may be disposed at the bottom of the water intake container, so that the sealing body may be sealed with the container connecting seat 5.
In this embodiment, the upper hemisphere 602 of the sealing sphere 6 is combined with the spherical groove on the bottom surface of the container connecting seat 5 to form a sealing effect, so as to ensure that the water sample is stored in the container body 4. In other embodiments, the bottom surface of the container connecting seat 5 may also be provided with a convex form, and the upper hemisphere 602 of the sealing sphere 6 is provided with a sealing recess matched with the bottom surface of the container connecting seat 5, so that the sealing effect can also be achieved.
In this embodiment, the winding rope 210 is connected to the sealing body through the connection ring 3 and the sealing body pulling member 601, the sealing body pulling member 601 is a steel wire rope, in other embodiments, the connection ring 3 and the sealing body may be provided as a rod structure, and the winding rope is connected to the sealing body through the rod structure; alternatively, the sealing body lifting member 601 is also provided in the form of a hoisting rope.
In this embodiment, the container body 4 is made of plastic, but in other embodiments, other materials, such as a thinner metal material, may be used.
In this embodiment, the top in sample chamber is equipped with the top water inlet, can realize faster water injection speed, in other embodiments, also can only set up the bottom water inlet, the top in sample chamber set up the gas vent can. Additionally, in other implementations, both the top water inlet and the air outlet may be provided to the sides of the top of the sampling chamber.
Claims (10)
1. A sampler of a surface water sampling device is characterized in that:
comprises a water taking container, a sealing body and a sealing body lifting piece;
the water taking container is provided with a sampling cavity for containing a water sample, the bottom surface of the sampling cavity is provided with a bottom water inlet, and the top of the sampling cavity is provided with an air outlet or a top water inlet;
the top and the bottom of the water taking container are both provided with a pulling piece through hole, the pulling piece through hole at the top and the pulling piece through hole at the bottom correspond to each other up and down, and the sealing body pulling piece can movably pass through the pulling piece through hole;
the lower end of the sealing body lifting piece is connected with the sealing body, and the upper end of the sealing body lifting piece is used for being connected with the lowering and lifting device;
the sealing body is used for being equipped with sealed cooperation portion with one side that the sealing body was carried and is drawn the piece and be connected, sealed cooperation portion be used for when the sealing body is carried upwards with bottom water inlet seal cooperation is in order to shutoff the bottom water inlet.
2. The surface water sampling device sampler of claim 1, wherein: the bottom of the water taking container is of a conical structure, the diameter of the top of the conical structure is larger than that of the bottom of the conical structure, and the bottom water inlet is formed in the small end of the conical structure.
3. The surface water sampling device sampler of claim 2, wherein: the part of the water taking container, which is positioned at the upper end of the conical structure, is of a cylindrical structure, and the height of the water taking container is 2 times to 2.6 times of the diameter of the cylindrical structure.
4. A sampler for a surface water sampling apparatus according to claim 2 or 3, wherein: the water intake container is made of plastic.
5. A sampler for a surface water sampling device according to claim 1, 2 or 3, wherein: the water taking container comprises a container body and a container connecting seat, wherein the container body is provided with a lower end opening, the container connecting seat is detachably connected to the lower end opening of the container body, and the bottom water inlet is formed in the container connecting seat.
6. A sampler for a surface water sampling device according to claim 1, 2 or 3, wherein: the container is characterized in that an external thread is arranged at the lower end opening of the container body, an internal thread matched with the external thread is arranged in the container connecting seat, the internal thread is divided into at least two sections along the axis, and the diameter of one section of internal thread at the upper part in the adjacent two sections of internal threads is larger than that of one section of internal thread at the lower part.
7. A sampler for a surface water sampling device according to claim 1, 2 or 3, wherein: a depression is arranged on the bottom surface of the water taking container, a water passing channel is arranged on the bottom wall of the depression and is of a spherical structure, and the bottom water inlet is arranged on the inner wall of the depression;
the sealing body is a sealing ball, and a sealing matching part of the sealing ball is made of elastic materials.
8. The surface water sampling device sampler of claim 7, wherein: the sealing ball is provided with a hollow inner cavity, and the hollow inner cavity is used for putting in and taking out corresponding balance weights; the part of the sealing body pulling piece penetrating out of the top of the water taking container is provided with a stopping structure, and the stopping structure is used for being matched with the top surface of the water taking container in a stopping way so as to press the water taking container under the action of the balance weight.
9. The surface water sampling device sampler of claim 8, wherein: the sealing body lifting piece is a steel wire rope, the upper end of the sealing body lifting piece is connected with the corresponding hoisting rope through a connecting ring, and the stopping structure is formed by the connecting ring.
10. The surface water sampling device sampler of claim 7, wherein: the water passing channel is of a porous structure, and the porous structure forms a filtering opening.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911216115.3A CN112985894A (en) | 2019-12-02 | 2019-12-02 | Surface water sampling device's sampler |
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| CN201911216115.3A CN112985894A (en) | 2019-12-02 | 2019-12-02 | Surface water sampling device's sampler |
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Cited By (3)
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| CN113559948A (en) * | 2021-08-30 | 2021-10-29 | 李海侠 | Liquid transfer device for environment monitoring analysis |
| CN114152473A (en) * | 2021-11-02 | 2022-03-08 | 中冶南方都市环保工程技术股份有限公司 | Water taking device and using method thereof |
| CN116558880A (en) * | 2023-04-21 | 2023-08-08 | 绍兴上虞国宏印染有限公司 | Multifunctional sampling device for printing and dyeing wastewater treatment |
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| CN113559948A (en) * | 2021-08-30 | 2021-10-29 | 李海侠 | Liquid transfer device for environment monitoring analysis |
| CN113559948B (en) * | 2021-08-30 | 2023-04-18 | 李海侠 | Liquid transfer device for environment monitoring analysis |
| CN114152473A (en) * | 2021-11-02 | 2022-03-08 | 中冶南方都市环保工程技术股份有限公司 | Water taking device and using method thereof |
| CN116558880A (en) * | 2023-04-21 | 2023-08-08 | 绍兴上虞国宏印染有限公司 | Multifunctional sampling device for printing and dyeing wastewater treatment |
| CN116558880B (en) * | 2023-04-21 | 2023-10-20 | 绍兴上虞国宏印染有限公司 | Multifunctional sampling device for printing and dyeing wastewater treatment |
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