CN209820831U - Water quality layered sampler - Google Patents
Water quality layered sampler Download PDFInfo
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- CN209820831U CN209820831U CN201822086391.XU CN201822086391U CN209820831U CN 209820831 U CN209820831 U CN 209820831U CN 201822086391 U CN201822086391 U CN 201822086391U CN 209820831 U CN209820831 U CN 209820831U
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Abstract
The utility model relates to a quality of water layering sample thief, including aspiration pump, water intaking bottle, connecting pipe, hose, the aspiration pump includes that both ends all open drum, setting are at the inside piston of drum, set up at the first closing cap of drum head end, set up second closing cap, the connecting rod at the drum tail end. The tail end of the hose is provided with a counterweight, the counterweight comprises a metal column, the metal column comprises a circular truncated cone-shaped column body, and the large end of the column body is provided with a hemispherical convex part; the center of the metal column is provided with a hard tube which penetrates through the convex part and the column body. The water quality layered sampler has the advantages of simple structure, portability and convenient operation, and can solve the problem of secondary cross contamination caused by sampling; the accuracy and the reliability of sample are high, and the disturbance to the water is few during the sample, guarantees the degree of accuracy and the reliability of stratified sampling.
Description
Technical Field
The utility model relates to a quality of water layering sample thief belongs to environmental monitoring technical field.
Background
With the increasingly prominent water environment problem and the high national emphasis on the water ecological environmental protection industry, the research on water pollution prevention and related problems increasingly becomes a research hotspot and gradually changes to the research in multiple spaces, multiple scales and deep levels. Water quality monitoring becomes an important link for water environment problem research, and water sampling work is a prerequisite for the correctness of research results and conclusions. The tools and methods for collecting samples are not only related to the accuracy, reliability and precision of the test, but also affect the working efficiency of the operator. At present the quality of water sampler commonly used is mostly well-bucket (bottle) formula sampler, has set up the water inlet, has intake valve and delivery port water outlet closing system, can accomplish the requirement of layering sample to a certain extent, but at the easy disturbance water of actual operation in-process, brings the difficulty for the layering sample. In addition, many researches on underground water, interstitial water or rock fractures are carried out in agriculture, water conservancy, geology and other industries which intersect with the environment, related experiments generally collect water samples through observation wells (holes) or rock fractures, but the conditions that the observation pore size or the fracture size is small are frequently met, common bucket (bottle) type samplers are difficult to put into the samples directly, some samples can be pumped through a water pump in the actual operation process, but kinetic energy (electric energy) is lacked in the field, a power supply or other power systems must be carried, the whole system is large in size, high in economic investment and convenient to carry, and requirements of layered sampling are difficult to meet.
SUMMERY OF THE UTILITY MODEL
The utility model provides a not enough to prior art exists, provides a quality of water layering sample thief, and concrete technical scheme is as follows:
a water quality layered sampler comprises an air pump, a water taking bottle, a connecting pipe and a hose, wherein the air pump comprises a cylinder with two open ends, a piston arranged in the cylinder, a first sealing cover arranged at the head end of the cylinder, a second sealing cover arranged at the tail end of the cylinder and a connecting rod, one end of the connecting rod is fixedly connected with the middle part of the piston, and the other end of the connecting rod is fixedly provided with a handle; the first sealing cover is in threaded connection with the head end of the cylinder, and a through hole for the connecting rod to move is formed in the middle of the first sealing cover; the tail end of the cylinder is hermetically connected with a second sealing cover, and an air exhaust chamber is defined by the piston, the inner wall of the cylinder and the second sealing cover; the middle part of the second sealing cover is provided with an air hole, the bottle opening of the water taking bottle is provided with a rubber plug, the head end of the connecting pipe is communicated with the air hole, the tail end of the connecting pipe is embedded into the rubber plug, and the tail end of the connecting pipe is communicated with the inner cavity of the water taking bottle; the tail end of hose imbeds the rubber buffer and the tail end of hose communicates with the inner chamber of water intaking bottle.
As an improvement of the technical scheme, the outer wall of the hose is provided with scale marks.
As an improvement of the technical scheme, a counterweight is arranged at the tail end of the hose and comprises a metal column, the metal column comprises a circular truncated cone-shaped column body, and a hemispherical convex part is arranged at the large end of the column body; the center of metal post is provided with the hard tube that runs through convex part and cylinder, the tail end of hard tube flushes with the tip of cylinder, the head end setting of hard tube is in the outside of convex part and the head end intercommunication of hard tube and hose.
As an improvement of the technical scheme, a mirror reflection layer is arranged on the surface of the convex part, and a red anticorrosive layer is coated on the surface of the cylinder.
As an improvement of the technical scheme, the diameter of the convex part is equal to that of the large end of the column body.
As an improvement of the technical scheme, the area of the through hole is larger than the cross-sectional area of the connecting rod.
Quality of water layering sample thief's simple structure, portable, convenient operation utilizes the vacuum negative pressure method to directly press the water intaking bottle with the water sample, can solve the secondary cross contamination problem because of the sampling brings through changing the water intaking bottle. The accuracy and the reliability of sample are high, and the disturbance to the water is few during the sample, guarantees the degree of accuracy and the reliability of stratified sampling.
Drawings
FIG. 1 is a schematic structural view of the water quality stratified sampling device of the present invention;
fig. 2 is a schematic structural diagram of the counterweight of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, the water quality stratified sampling apparatus comprises an air pump, a water intake bottle 20, a connecting pipe 30 and a hose 40, wherein the air pump comprises a cylinder 11 with two open ends, a piston 12 arranged in the cylinder 11, a first sealing cover 13 arranged at the head end of the cylinder 11, a second sealing cover 14 arranged at the tail end of the cylinder 11 and a connecting rod 15, one end of the connecting rod 15 is fixedly connected with the middle part of the piston 12, and the other end of the connecting rod 15 is fixedly provided with a handle 16; the first sealing cover 13 is in threaded connection with the head end of the cylinder 11, and a through hole for the movement of the connecting rod 15 is formed in the middle of the first sealing cover 13; the tail end of the cylinder 11 is hermetically connected with a second sealing cover 14, and an extraction chamber 17 is defined by the piston 12, the inner wall of the cylinder 11 and the second sealing cover 14; an air hole is formed in the middle of the second sealing cover 14, a rubber plug 21 is installed at the opening of the water taking bottle 20, the head end of the connecting pipe 30 is communicated with the air hole, the tail end of the connecting pipe 30 is embedded into the rubber plug 21, and the tail end of the connecting pipe 30 is communicated with the inner cavity of the water taking bottle 20; the tail end of the hose 40 is embedded into the rubber plug 21 and the tail end of the hose 40 is communicated with the inner cavity of the water taking bottle 20.
The water taking bottle 20 is made of hard materials and does not react with the taken water sample physically and chemically, such as a silicate glass bottle. The outer diameter of the hose 40 should not be too thick, and the outer diameter is controlled within 1cm, and the material can be resin or rubber high-pressure pipe. A screen may be installed at the head end of the hose 40. Wherein, in order to master the sampling depth, the outer wall of the hose 40 is provided with scale marks.
The water quality stratified sampling device is specifically used as follows:
firstly, a rubber plug 21 is arranged at the bottle mouth of the water taking bottle 20, then the head end of the hose 40 is arranged at the position of a sample to be collected and at a proper depth, the handle 16 is held by hands to start air suction operation of the air suction pump, the air suction chamber 17 is communicated with the air hole, the air hole is communicated with the inner cavity of the connecting pipe 30, the inner cavity of the connecting pipe 30 is communicated with the inner cavity of the water taking bottle 20, and the inner cavity of the water taking bottle 20 is communicated with the inner cavity of the hose 40. When the piston 12 moves in a direction away from the second cover 14, the volume of the air extraction chamber 17 increases, the air pressure inside the air extraction chamber 17 decreases, a negative pressure is generated, and the sampled water is pushed into the water sampling bottle 20 by the atmospheric pressure. During the first sampling, a small amount of water is taken firstly to rinse the hose 40 and the water taking bottle 20; after the rinsing is finished, the rubber plug 21 is opened, and the rinsing water in the water taking bottle 20 is poured out; then, the rubber plug 21 is plugged into the bottle mouth of the water taking bottle 20, air extraction operation is carried out through an air extraction pump, and water samples are collected; and (5) sealing the cover after sampling and storing at low temperature. After each sampling, the inner wall of the hose 40 is flushed with distilled water, and the water bottle 20 is replaced to collect the next water sample. Wherein the area of the through hole is larger than the cross-sectional area of the connecting rod 15, so that the space between the piston 12 and the first cover 13 can be communicated with the outside atmosphere.
As shown in fig. 1 and 2, a counterweight 50 is arranged at the tail end of the hose 40, the counterweight 50 includes a metal column 51, the metal column 51 includes a truncated cone-shaped column 511, and a hemispherical convex part 512 is arranged at the large end of the column 511; the center of the metal column 51 is provided with a hard pipe 52 penetrating through the convex part 512 and the column 511, the axis of the metal column 51 is collinear with the axis of the hard pipe 52, the tail end of the hard pipe 52 is flush with the small end of the column 511, the head end of the hard pipe 52 is arranged outside the convex part 512, and the head end of the hard pipe 52 is communicated with the head end of the hose 40. The diameter of the protrusion 512 is equal to the diameter of the large end of the cylinder 511. The protrusion 512 and the cylinder 511 are integrally connected.
The weight 50 can ensure that the hose 40 can naturally droop and straighten when sampling; the vertical hose 40 can be accurately used for depth measurement at a sampling point with a small measurement error compared to the bent hose 40. The frustoconical cylinder 511 makes it easier for the hose 40 to remain upright under the effect of gravity. The purpose of the rigid tube 52 is to facilitate its connection to the hose 40. The convex part 512 has the function of enabling the center of gravity of the metal column 51 to be higher, which is beneficial to quickly finding points and stabilizing the truncated cone-shaped column 511 positioned below, and the hemispherical convex part 512 and the mirror reflection layer enable the convex part 512 in the water to be easily observed by a sampling person; the mirror reflection layer can be polished to a mirror level, the surface smoothness can be increased through chromium plating, and the corrosion resistance of the chromium plating can be improved. The surface of the cylinder 511 is coated with a red anticorrosive coating, the red anticorrosive coating is made of red anticorrosive paint, and the red anticorrosive paint can be made of epoxy resin paint added with red pigment. The red anti-corrosion layer can protect the cylinder 511 from being corroded, meanwhile, the red color is more striking, the cylinder 511 and the convex part 512 can be easily observed by a sampling person, so that the sampling operation is convenient, and the interference of a sludge area or other suspension areas on a sampling point can be avoided during sampling; meanwhile, the hemispherical convex part 512 makes the surface of the convex part 512 difficult to adhere with sundries. Meanwhile, the counterweight 50 of the structure has less disturbance to the water body when entering water, and the accuracy and reliability of layered sampling are ensured.
In the embodiment, the water quality layered sampler is mainly used for sampling water bodies such as natural water bodies (rivers, lakes and drainage canals), underground water and interstitial water observation holes and rock fractures, and can meet the requirements of layered sampling at different depths of the water bodies and water sample collection in small-aperture observation (well) holes and small-scale fractures.
The water quality layered sampler is simple in structure, convenient to carry and operate, a water sample is directly pressed into the water taking bottle 20 by using a vacuum negative pressure method, and the problem of secondary cross contamination caused by sampling can be solved by replacing the water taking bottle 20. The accuracy and the reliability of sample improve, and the scale sign of hose 40 outer wall is observed to the accessible, and the accurate control sampling degree of depth compares with traditional well-bucket or transfusion bottle sampling, and the degree of accuracy and the reliability of layering sample have been guaranteed to the disturbance greatly reduced of water. The observation well (bore) groundwater or interstitial water can also be sampled.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. A water quality stratified sampling ware which characterized in that: the air suction pump comprises a cylinder (11) with two open ends, a piston (12) arranged inside the cylinder (11), a first sealing cover (13) arranged at the head end of the cylinder (11), a second sealing cover (14) arranged at the tail end of the cylinder (11) and a connecting rod (15), wherein one end of the connecting rod (15) is fixedly connected with the middle part of the piston (12), and the other end of the connecting rod (15) is fixedly provided with a handle (16); the first sealing cover (13) is in threaded connection with the head end of the cylinder (11), and a through hole for the movement of the connecting rod (15) is formed in the middle of the first sealing cover (13); the tail end of the cylinder (11) is hermetically connected with a second sealing cover (14), and an air extracting chamber (17) is defined by the piston (12), the inner wall of the cylinder (11) and the second sealing cover (14); an air hole is formed in the middle of the second sealing cover (14), a rubber plug (21) is installed at the opening of the water taking bottle (20), the head end of the connecting pipe (30) is communicated with the air hole, the tail end of the connecting pipe (30) is embedded into the rubber plug (21), and the tail end of the connecting pipe (30) is communicated with the inner cavity of the water taking bottle (20); the tail end of the hose (40) is embedded into the rubber plug (21) and the tail end of the hose (40) is communicated with the inner cavity of the water taking bottle (20).
2. The water quality stratified sampling apparatus as recited in claim 1, wherein: the outer wall of the hose (40) is provided with scale marks.
3. A water quality stratified sampling apparatus as claimed in claim 2, wherein: a counterweight (50) is arranged at the tail end of the hose (40), the counterweight (50) comprises a metal column (51), the metal column (51) comprises a truncated cone-shaped column body (511), and a hemispherical convex part (512) is arranged at the large end of the column body (511); the center of metal post (51) is provided with hard tube (52) that runs through convex part (512) and cylinder (511), the tail end of hard tube (52) flushes with the tip of cylinder (511), the head end setting of hard tube (52) is in the outside of convex part (512) and the head end of hard tube (52) and the head end intercommunication of hose (40).
4. A water quality stratified sampling apparatus as claimed in claim 3, wherein: the surface of the convex part (512) is provided with a mirror reflection layer, and the surface of the cylinder (511) is coated with a red anticorrosive layer.
5. A water quality stratified sampling apparatus as claimed in claim 3, wherein: the diameter of the convex part (512) is equal to that of the large end of the cylinder (511).
6. The water quality stratified sampling apparatus as recited in claim 1, wherein: the area of the through hole is larger than the cross-sectional area of the connecting rod (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822086391.XU CN209820831U (en) | 2018-12-12 | 2018-12-12 | Water quality layered sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822086391.XU CN209820831U (en) | 2018-12-12 | 2018-12-12 | Water quality layered sampler |
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| Publication Number | Publication Date |
|---|---|
| CN209820831U true CN209820831U (en) | 2019-12-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201822086391.XU Active CN209820831U (en) | 2018-12-12 | 2018-12-12 | Water quality layered sampler |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111289305A (en) * | 2020-03-25 | 2020-06-16 | 中国电建集团中南勘测设计研究院有限公司 | Automatic water sample collection device |
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2018
- 2018-12-12 CN CN201822086391.XU patent/CN209820831U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111289305A (en) * | 2020-03-25 | 2020-06-16 | 中国电建集团中南勘测设计研究院有限公司 | Automatic water sample collection device |
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