CN212180349U - Portable groundwater collection system - Google Patents
Portable groundwater collection system Download PDFInfo
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- CN212180349U CN212180349U CN202020428389.0U CN202020428389U CN212180349U CN 212180349 U CN212180349 U CN 212180349U CN 202020428389 U CN202020428389 U CN 202020428389U CN 212180349 U CN212180349 U CN 212180349U
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Abstract
The utility model provides a portable groundwater collection system: the sampling device comprises a suction device and a sampling sleeve, wherein the suction device comprises a hollow sample accommodating cavity, the sampling sleeve comprises an inner pipe and an outer pipe which are coaxially arranged, the inner pipe is communicated with the sample accommodating cavity, and the outer pipe is rotatably sleeved outside the inner pipe; the pipe wall of the outer pipe is provided with a first sampling port, the pipe wall of the inner pipe is provided with a second sampling port, the positions of the first sampling port and the second sampling port are corresponding, and the first sampling port and the second sampling port are controlled to be staggered and coincided with each other by rotating the outer pipe. In the depth-setting sampling process, the positions of the first sampling port and the second sampling port are adjusted, so that the water body can be controlled to enter the sampling sleeve, and the accuracy of depth-setting sampling is guaranteed. Furthermore, the utility model provides a portable groundwater collection system simple structure does not relate to large-scale, heavy spare part, conveniently carries and shifts, has improved the convenience and the place adaptability that groundwater was gathered.
Description
Technical Field
The utility model belongs to the technical field of quality of water sample collection equipment, specifically, relate to a portable groundwater collection system.
Background
Hydrogeology is a branch of geology, which refers to the phenomenon of various changes and movements of groundwater in nature. Hydrology and geology are the science of researching underground water, and mainly research the distribution and formation rule of underground water, the physical properties and chemical components of underground water, the resource and reasonable utilization of underground water, the adverse effect of underground water on engineering construction and mine exploitation, the prevention and treatment of the adverse effect of underground water and the like. Groundwater sampling is an important technical means for hydrogeological research, and abundant hydrogeological information can be obtained by analyzing the groundwater components in a specific area.
The composition of the groundwater has the layering characteristics, such as the distribution of heavy non-aqueous phase (DNAPL) and light non-aqueous phase (LNAPL) at different depths of the aquifer, resulting in different groundwater properties at different depths, and therefore, the depth setting accuracy of sampling often has an important influence on the reliability of the analysis result of the sample. At present, the following defects generally exist in the common underground water sampling equipment:
(1) a water sample with a certain depth cannot be accurately collected;
(2) the equipment is huge, the operation is complex and the carrying is inconvenient.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a portable groundwater collection system to solve at least one among the technical problem that prior art exists.
According to the utility model discloses an aspect provides a portable groundwater collection system: the sampling device comprises a suction device and a sampling sleeve, wherein the suction device comprises a hollow sample accommodating cavity, the sampling sleeve comprises an inner pipe and an outer pipe which are coaxially arranged, the inner pipe is communicated with the sample accommodating cavity, and the outer pipe is rotatably sleeved outside the inner pipe; the pipe wall of the outer pipe is provided with a first sampling port, the pipe wall of the inner pipe is provided with a second sampling port, the positions of the first sampling port and the second sampling port are corresponding, and the first sampling port and the second sampling port are controlled to be staggered and coincided with each other by rotating the outer pipe. In the process of depth-fixed sampling, the positions of the first sampling port and the second sampling port are adjusted to control the water body to enter the sampling sleeve. When first sample connection and second sample connection stagger, outside water can't get into the sampling sleeve pipe, avoids the collection of non-target water sample to cause the test reliability to reduce, when the sampling sleeve pipe reaches the target degree of depth, makes first sample connection and second sample connection coincidence, and the target water sample gets into the sampling sleeve pipe to the accuracy of depthkeeping sampling has been guaranteed. Furthermore, the utility model provides a portable groundwater collection system, simple structure does not relate to large-scale, heavy spare part, conveniently carries and shifts, has improved the convenience and the place adaptability that groundwater was gathered.
Preferably, the first sampling port is located in the side wall of the outer tube and the second sampling port is located in the side wall of the inner tube.
Preferably, the outer wall of the outer tube is provided with a first scale, and the first scale is used for depth measurement. In the sampling process, the depth of the downward placement of the sampling casing can be monitored by observing the first scale.
Preferably, both the outer tube and the inner tube are transparent. In the sampling process, the outer pipe and the inner pipe can be penetrated to directly observe whether a water sample enters the sampling sleeve or not, so that whether the sampling sleeve is blocked by an unknown material or not and whether sampling is successful or not can be judged in time.
Preferably, the aspiration device comprises a hollow sample receiving chamber, a piston and a bottom cap, the sample receiving chamber comprising a first end and a second end; the piston is inserted in the first end part, the bottom cover can rotatably cover the second end part, and the sampling sleeve is installed on the bottom cover. The connected mode of inner tube and bottom is for dismantling the connection, in the in-service use process, can assemble, split sampling sleeve pipe and suction device, satisfies the sample correspondingly and shifts the demand of sample.
Preferably, the cavity wall of the sample holding cavity is transparent.
Preferably, the cavity wall of the sample accommodating cavity is provided with a second scale, and the second scale is used for measuring the volume of the liquid entering the sample accommodating cavity.
From this, can see through the chamber wall observation in sample holding chamber and the water sample volume that directly confirms to get into sample holding chamber, the ration of the water sample of being convenient for is gathered.
Preferably, the bottom cover comprises an outer cover body and an inner cover body which are coaxially arranged, the outer cover body and the inner cover body are sequentially arranged along the direction of the second end part pointing to the first end part, and the outer cover body and the inner cover body are connected through a rotating shaft; the outer cover body is provided with a first sample inlet hole, the inner pipe is inserted in the first sample inlet hole, the inner cover body is provided with a second sample inlet hole, and the first sample inlet hole and the second sample inlet hole are controlled to be staggered and superposed with each other by rotating the outer cover body. The position of the sampling sleeve mounting hole and the sampling hole is adjusted to control the water body to enter the sample accommodating cavity. After sufficient water sample gets into sample holding chamber, make sample sleeve pipe mounting hole and advance the sample hole and stagger, cut off the passageway that the water sample was advanced, was gone into, is gone out sample holding chamber, with sample holding chamber and sample sleeve pipe split, directly reaches from the sample site transfer water sample through shifting sample holding chamber, convenient operation.
Preferably, the suction device comprises an outer cavity wall and an inner cavity wall which are coaxially arranged, the outer cavity wall is rotatably sleeved outside the inner cavity wall, an inner space surrounded by the inner cavity wall is a sample accommodating cavity, the outer cavity wall is provided with a first sample outlet hole, the inner cavity wall is provided with a second sample outlet hole, the first sample outlet hole corresponds to the second sample outlet hole in position, and the outer cavity wall is rotated to control the first sample outlet hole and the second sample outlet hole to be staggered and overlapped. Under the condition that need not split suction device, through the position of adjusting first appearance hole and second appearance hole, can be in order to close, open the passageway that is located the water sample discharge sample holding chamber of sample holding intracavity, make the transfer of water sample very convenient to, can utilize same groundwater collection device to gather the water sample of the different degree of depth many times in succession, improve the efficiency of groundwater sampling.
Drawings
FIG. 1 is a front view of the portable groundwater collection device of embodiment 1;
fig. 2 is an exploded view of the bottom cover of example 1.
The correspondence of the various components to the numbers in the drawings is as follows: 1. the sampling device comprises a sampling sleeve, 11, an inner tube, 12, an outer tube, 13, a first sampling port, 14, a second sampling port, 15, a first scale, 2, a suction device, 21, a sample containing cavity, 211, an outer cavity wall, 212, an inner cavity wall, 213, a first sample outlet, 214, a second sample outlet, 215, a second scale, 22, a piston, 23, a bottom cover, 231, an outer cover body, 2311, a rotating shaft, 232, an inner cover body, 233, a first sample inlet and 234, a second sample inlet.
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 in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, back, horizontal, vertical … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly. In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.
Example 1
As shown in FIG. 1, the portable groundwater sampling apparatus of the present embodiment includes a sampling cannula 1 and a suction device 2. The sampling cannula 1 is composed of an inner tube 11 and an outer tube 12 (in this embodiment, the outer diameter of the outer tube 12 is 20mm) which are coaxially arranged, the outer tube 12 and the inner tube 11 are both hollow tubes, and the outer tube 12 is rotatably sleeved outside the inner tube 11. In the present embodiment, the end of the inner tube 11 is formed with a ring-shaped protrusion which is arranged around the radial section of the tube body of the inner tube 11 in a circle, and the diameter of the ring-shaped protrusion is smaller than the inner diameter of the outer tube 12; the outer tube 12 also comprises a rotary cover body for covering the end part of the tube body, the middle part of the rotary cover body is provided with a through hole penetrating through the upper surface and the lower surface of the rotary cover body, the diameter of the through hole is larger than the outer diameter of the inner tube 11 and smaller than the diameter of the annular bulge, the inner tube 11 is inserted into the outer tube 12 along the axial direction of the outer tube 12 during installation, the rotary cover body is sleeved into the inner tube 11 (the inner tube 11 penetrates through the through hole of the rotary cover body) after the position corresponding to each part is adjusted, and the upper end of the outer. In other embodiments, the outer tube 12 and the inner tube 11 may be assembled in other manners to achieve rotatable sleeving of the outer tube 12 and the inner tube 11. The pipe wall of the outer pipe 12 is provided with a first sampling port 13, the pipe wall of the inner pipe 11 is provided with a second sampling port 14, the first sampling port 13 and the second sampling port 14 are identical in shape and corresponding in position, and the first sampling port 13 and the second sampling port 14 can be controlled to be staggered and overlapped with each other by rotating the outer pipe 12. The outer tube 12 and the inner tube 11 of this embodiment are both made of transparent materials, and the outer surface of the inner tube 11 is further provided with a first scale 15, and the first scale 15 is a scale for measuring the depth of a water body. The pumping device 2 comprises a bottom cover 23, a piston 22, an outer cavity wall 211 (in this embodiment, the outer diameter of the outer cavity wall 211 is 60mm) and an inner cavity wall 212, the outer cavity wall 211 and the inner cavity wall 212 are coaxially arranged, the outer cavity wall 211 is rotatably sleeved outside the inner cavity wall 212, the outer cavity wall 211 is provided with a first sample outlet hole 213, the inner cavity wall 212 is provided with a second sample outlet hole 214, the first sample outlet hole 213 and the second sample outlet hole 214 have the same shape and are corresponding in position, and the first sample outlet hole 213 and the second sample outlet hole 214 can be controlled to be staggered and overlapped by rotating the outer cavity wall 211. In this embodiment, the outer cavity wall 211 and the inner cavity wall 212 are both made of a transparent material, and the outer surface of the outer cavity wall 211 is further provided with a second scale 215, where the second scale 215 is a scale for measuring the volume of the liquid. The inner space surrounded by the inner cavity wall 212 is a sample accommodating cavity 21, the sample accommodating cavity 21 includes a first end portion and a second end portion, the piston 22 is inserted into the first end portion, and the bottom cover 23 covers the second end portion. As shown in fig. 2, the bottom cover 23 includes an outer cover 231 and an inner cover 232 coaxially disposed, a mounting hole penetrating through upper and lower surfaces is formed in a middle portion of the inner cover 232, a second sample injection hole 234 is formed in one side of the mounting hole, a rotation shaft 2311 matching with the mounting hole is formed in a middle portion of the outer cover 231, a first sample injection hole 233 is formed in one side of the rotation shaft 2311, and the first sample injection hole 233 and the second sample injection hole 234 have the same shape and correspond to each other in position; in assembling, the rotation shaft 2311 of the outer cover 231 is inserted through the mounting hole of the inner cover 232, and the first sample injection hole 233 and the second sample injection hole 234 are controlled to be displaced from each other and to overlap each other by rotating the outer cover 231. In this embodiment, the second end of the sample-receiving chamber 21 is directly inserted into the inner lid 232 (optionally with a gasket added therebetween) to complete the assembly of the sample-receiving chamber 21 and the bottom lid 23. Before use, the shaft portion of the inner tube 11 at the upper end of the junction with the outer tube 12 is inserted into the first sampling hole 233 of the outer cap 231, completing the assembly of the portable groundwater sampling device.
Before sampling, the first sample outlet hole 213 on the outer cavity wall 211 and the second sample outlet hole 214 on the inner cavity wall 212 of the portable groundwater sampling device are staggered, the outer cover 231 of the bottom cover 23 is rotated to make the first sample inlet hole 233 on the outer cover 231 and the second sample inlet hole 234 on the inner cover 232 coincide, and at this time, the inner tube 11 is communicated with the sample accommodating cavity 21. In the process of utilizing the portable groundwater collection device to carry out depthkeeping sampling, stretch into sampling waters with sampling sleeve pipe 1, before reaching the target depth, make first sample connection 13 and second sample connection 14 setting of staggering, avoid the water except that being located the target depth to get into in sampling sleeve pipe 1. With the lowering of the sampling casing 1, the water depth is monitored by observing the first scale 15 on the outer wall of the inner pipe 11. When the target depth is reached, the outer pipe 12 is rotated to coincide with the first sampling port 13 and the second sampling port 14, a channel for a water sample to enter the groundwater sampling device is opened, then the piston 22 of the suction device 2 is pulled upwards, at the moment, the target sample sequentially passes through the first sampling port 13, the second sampling port 14, the inner pipe 11, the first sample inlet hole 233 and the second sample inlet hole 234 and finally enters the sample accommodating cavity 21, and therefore accurate depth-fixing sampling can be completed. When a sufficient water sample is collected, the outer cover 231 is rotated to stagger the first sample inlet hole 233 and the second sample inlet hole 234, and the passage of the water body into and out of the sample accommodating chamber 21 is closed. When a sample is transferred, the outer cavity wall 211 can be rotated to enable the first sample outlet 213 and the second sample outlet 214 to coincide, a channel for discharging the sample accommodating cavity 21 from a water sample is opened, a sample bottle communicated with the first sample outlet 213 is used for receiving the water sample discharged from the sample accommodating cavity 21, and the volume of the discharged water sample can be known by observing the second scale 215 in the process of discharging the water sample, so that relatively accurate water sample quantification can be performed, and the connection relation of all parts of the underground water sampling device is completely not needed, so that the underground water sampling device can be used for continuous sampling; for example, when the fixed-depth sampling of the next depth is performed, after the sampling sleeve 1 reaches the next target depth, a certain amount of water sample of the target depth is extracted according to the above operation, and then the water sample is directly discharged through the second sample outlet 214 and the first sample outlet 213, so that the underground water sampling device is cleaned and flushed, the error of the residual water sample at the previous target depth on the test result is avoided, and then the above steps are repeated to perform the formal sampling. In other cases, after sampling is completed, the passage of the water body into and out of the sample accommodating cavity 21 is closed, and the suction device 2 can be directly detached from the sampling sleeve 1, so that sample transfer can be conveniently and quickly completed.
Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art will understand that the present invention can be modified or replaced with other embodiments without departing from the spirit and scope of the present invention.
Claims (9)
1. The utility model provides a portable groundwater collection system which characterized in that:
the sampling device comprises a suction device and a sampling sleeve, wherein the suction device comprises a hollow sample accommodating cavity, the sampling sleeve comprises an inner pipe and an outer pipe which are coaxially arranged, the inner pipe is communicated with the sample accommodating cavity, and the outer pipe is rotatably sleeved outside the inner pipe;
the pipe wall of the outer pipe is provided with a first sampling port, the pipe wall of the inner pipe is provided with a second sampling port, the first sampling port corresponds to the second sampling port in position, and the first sampling port and the second sampling port are controlled to be staggered and superposed with each other by rotating the outer pipe.
2. The portable groundwater collection device as claimed in claim 1, wherein: the first sampling port is located on the side wall of the outer pipe, and the second sampling port is located on the side wall of the inner pipe.
3. A portable groundwater collection device as defined in claim 2, wherein: the outer wall of the outer tube is provided with first scales, and the first scales are used for depth measurement.
4. A portable groundwater collection device as claimed in claim 3, wherein: the outer tube and the inner tube are transparent.
5. The portable groundwater collection device as claimed in claim 1, wherein:
the suction device comprises a hollow sample accommodating cavity, a piston and a bottom cover, wherein the sample accommodating cavity comprises a first end part and a second end part;
the piston is inserted into the first end part, the bottom cover is rotatably covered on the second end part, and the sampling sleeve is installed on the bottom cover.
6. The portable groundwater collection device as recited in claim 5, wherein: the cavity wall of the sample accommodating cavity is transparent.
7. The portable groundwater collection device as recited in claim 6, wherein: and a second scale is arranged on the cavity wall of the sample accommodating cavity and used for measuring the volume of the liquid entering the sample accommodating cavity.
8. The portable groundwater collection device as recited in claim 7, wherein:
the bottom cover comprises an outer cover body and an inner cover body which are coaxially arranged, the outer cover body and the inner cover body are sequentially arranged along the direction of the second end part pointing to the first end part, and the outer cover body is connected with the inner cover body through a rotating shaft;
the outer cover body is provided with a first sample inlet hole, the inner pipe is inserted in the first sample inlet hole, the inner cover body is provided with a second sample inlet hole, and the first sample inlet hole and the second sample inlet hole are controlled to be mutually staggered and superposed by rotating the outer cover body.
9. The portable groundwater collection device as recited in claim 8, wherein: suction device includes the outer chamber wall and the inner chamber wall of coaxial setting, outer chamber wall rotatably overlaps and establishes the outside of inner chamber wall, with the inner space that the inner chamber wall encloses does sample holding chamber, first appearance hole has been seted up on the outer chamber wall, the second has been seted up on the inner chamber wall and has been gone out the appearance hole, first appearance hole with the second goes out the position in appearance hole corresponding, through the rotation outer chamber wall is in order to control first appearance hole with the second goes out appearance hole and staggers each other, coincides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020428389.0U CN212180349U (en) | 2020-03-27 | 2020-03-27 | Portable groundwater collection system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020428389.0U CN212180349U (en) | 2020-03-27 | 2020-03-27 | Portable groundwater collection system |
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| CN212180349U true CN212180349U (en) | 2020-12-18 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112834281A (en) * | 2021-01-07 | 2021-05-25 | 浙江大学 | Sediment pore water sampling system and sampler thereof |
| CN113865912A (en) * | 2021-09-30 | 2021-12-31 | 青岛菲优特检测有限公司 | Sample sampling device for aquatic product detection |
| CN116735826A (en) * | 2023-08-15 | 2023-09-12 | 河北省地质环境监测院 | Groundwater detection device |
| CN113865912B (en) * | 2021-09-30 | 2024-04-30 | 青岛菲优特检测有限公司 | Sample sampling device for aquatic product detection |
-
2020
- 2020-03-27 CN CN202020428389.0U patent/CN212180349U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112834281A (en) * | 2021-01-07 | 2021-05-25 | 浙江大学 | Sediment pore water sampling system and sampler thereof |
| CN113865912A (en) * | 2021-09-30 | 2021-12-31 | 青岛菲优特检测有限公司 | Sample sampling device for aquatic product detection |
| CN113865912B (en) * | 2021-09-30 | 2024-04-30 | 青岛菲优特检测有限公司 | Sample sampling device for aquatic product detection |
| CN116735826A (en) * | 2023-08-15 | 2023-09-12 | 河北省地质环境监测院 | Groundwater detection device |
| CN116735826B (en) * | 2023-08-15 | 2023-11-03 | 河北省地质环境监测院 | Groundwater detection device |
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