CN213632808U - Portable air bag pump for underground water sampling - Google Patents
Portable air bag pump for underground water sampling Download PDFInfo
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- CN213632808U CN213632808U CN202022436817.7U CN202022436817U CN213632808U CN 213632808 U CN213632808 U CN 213632808U CN 202022436817 U CN202022436817 U CN 202022436817U CN 213632808 U CN213632808 U CN 213632808U
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Abstract
The utility model discloses a portable gasbag pump for groundwater sampling, include: the pump body is provided with an air transmission port penetrating into the pump body; the top end of the pump body is provided with a water inlet and a water outlet which are communicated with the interior of the pump body; an airbag provided inside the pump body; the air bag is a folded telescopic bag body and is in a contracted state when no external force acts; the top end opening of the air bag is connected with the water inlet and the water outlet; the bead valves are two spheres which are respectively arranged on the water inlet and the water outlet; the bead valve causes the expansion of the air bag along with the difference of the air flow direction in the air delivery port, covers the water inlet or the water outlet and moves up and down in a gap with the water inlet or the water outlet. It is through being connected with trachea and outlet pipe, can realize overall process air and water sample contactless, and the well-flushing water yield that significantly reduces simultaneously has the advantage of low discharge, low speed, low disturbance.
Description
Technical Field
The utility model relates to a groundwater sampling equipment technical field, in particular to a portable gasbag pump for groundwater sampling.
Background
When sampling and detecting volatile organic compounds in groundwater, in order to improve the accuracy of detection, need minimize the disturbance to groundwater, air and water sample contact should be avoided simultaneously, among the current water sample collection device, adopt suction pump or bailer pipe to carry out the collection of water sample more, but the use of suction pump can lead to the fact great disturbance to groundwater, and the bailer pipe needs manual operation, not only there is sampling time long, the low scheduling problem of sampling efficiency, still make air and water sample contact easily, cause the loss of aquatic volatile organic compounds, lead to the testing result inaccurate.
Therefore, there is an urgent need for a groundwater well-flushing and sampling device with low flow rate and low disturbance to ensure the accuracy of the detection result by the water sample.
SUMMERY OF THE UTILITY MODEL
It is an object of the present invention to solve at least the above problems and to provide at least the advantages which will be described later.
The utility model discloses it is still another purpose to provide a portable air bag pump for groundwater sampling, through being connected with trachea and outlet pipe, can realize overall process air and water sample contactless, the well-flushing water yield that significantly reduces simultaneously, and has the advantage of low discharge, low speed, low disturbance.
To achieve these objects and other advantages in accordance with the purpose of the invention, there is provided a portable air bag pump for groundwater sampling, including:
the pump body is provided with an air transmission port penetrating into the pump body; the top end of the pump body is provided with a water inlet and a water outlet which are communicated with the interior of the pump body;
an airbag provided inside the pump body; the air bag is a folded telescopic bag body and is in a contracted state when no external force acts; the top end opening of the air bag is connected with the water inlet and the water outlet;
the bead valves are two spheres which are respectively arranged on the water inlet and the water outlet; the bead valve causes the expansion of the air bag along with the difference of the air flow direction in the air delivery port, covers the water inlet or the water outlet and moves up and down in a gap with the water inlet or the water outlet.
Preferably, in the portable air bag pump for groundwater sampling, the gas transmission port is externally connected with a gas pump.
Preferably, in the portable air bag pump for groundwater sampling, a groove is arranged on the inner wall surrounding the water inlet; the ball valve is arranged inside the groove.
Preferably, in the portable air bag pump for groundwater sampling, a hollow baffle is arranged at the bottom end of the groove.
Preferably, in the portable air bag pump for groundwater sampling, the lower edge of the water outlet and the upper edge of the groove are both provided with sealing rings with cambered surfaces matched with the bead valves.
Preferably, in the portable air bag pump for groundwater sampling, the air bag is arranged in a cylindrical structure with a circular cross section.
Preferably, in the portable air bag pump for groundwater sampling, a filter screen is arranged on the water inlet.
Preferably, in the portable air bag pump for underground water sampling, the capacity of the air bag is 120-180 mL.
The utility model discloses at least, include following beneficial effect:
the utility model discloses a portable gasbag pump for groundwater sampling when using, the trachea that will connect the air pump is connected with the gas transmission mouth on the pump body, the outlet pipe that will connect the water quality monitoring unit is connected with the delivery port on the pump body, then place the pump body in the groundwater well, the pump body makes the water body push away the pearl valve on the water inlet downwards because of the pressure in the well, rivers slowly get into inside the gasbag through the clearance between pump body water inlet and pearl valve, the gasbag that originally is in the contraction state extends downwards gradually along with the entering of rivers, simultaneously, because the continuous extension of gasbag, the gas transmission mouth is outwards deflated, when the gasbag no longer extends simultaneously the outside air current of gas transmission mouth stops, utilize the air pump to let in gas to the pump body, along with the increase of gas in the pump body, the gasbag receives the upwards contraction of gaseous pressure, the pearl valve that is located the delivery port is pushed away by rivers, make rivers in the gasbag flow into the water quality monitoring unit through the outlet pipe, thereby completing the collection of a water sample. In the whole process of collecting a water sample, water only passes through the water inlet, the air bag and the water outlet and is not in contact with the air delivery port on the pump body outside the air bag, zero contact of the water sample and air in the whole sampling process is achieved, the air bag is slowly filled with water from the water inlet under the pressure of a water body, compared with the existing water pumping device, the water flow speed is slower and milder, the low flow and the low speed of water sample collection are achieved, the disturbance of the water sample to underground water during collection is effectively avoided, and the accuracy of a detection result is further guaranteed.
Through the novel portable air bag pump that the pump body, gasbag and pearl valve are constituteed, do not have mechanical parts in the structure, not only preparation low cost, and effectively reduced the damage probability of air bag pump to make the maintenance frequency low, be fit for laying under water for a long time.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a structural diagram of the portable air bag pump for groundwater sampling according to the present invention;
fig. 2 is a structural diagram of the portable air bag pump for groundwater sampling of the present invention when pumping water.
Detailed Description
The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
As shown in fig. 1 and 2, the present invention provides a portable air bag pump for groundwater sampling, including:
a pump body 100 having an air transfer port 110 formed therein and penetrating the pump body 100; the top end of the pump body 100 is provided with a water inlet 120 and a water outlet 130 which are communicated with the interior of the pump body 100;
an airbag 200 provided inside the pump body 100; the air bag 200 is a folded telescopic bag body and is in a contracted state when no external force acts; the top end opening of the air bag 200 is connected to the water inlet 120 and the water outlet 130;
the bead valve 300 is two spheres respectively arranged on the water inlet 120 and the water outlet 130; the ball valve 30 causes the expansion of the air bag 200 according to the difference of the air flow direction in the air delivery port 110, and moves up and down while covering the water inlet 120 or the water outlet 130 and having a gap with the water inlet 120 or the water outlet 130.
In the above scheme, when the portable air bag pump for sampling groundwater is in an initial state, the air bag in the pump body is in a contraction state, the bead valve on the water inlet seals the water inlet above the air bag due to the pressure of the gas in the air bag, the bead valve on the water outlet seals the water outlet below the bead valve due to the gravity of the bead valve, when the portable air bag pump is used, the air pipe connected with the air pump is connected with the air delivery port on the pump body, the water outlet pipe connected with the water quality monitoring unit is connected with the water outlet on the pump body, then the pump body is placed in the groundwater well, the bead valve on the water inlet is pressed downwards by the water body due to the pressure in the well, water flow slowly enters the air bag from the gap between the water inlet of the pump body and the bead valve, the air bag in the original contraction state gradually extends downwards along with the entering of the water flow, and simultaneously, due to, the gas transmission port is deflated outwards, when the air bag is not extended any more and the outward airflow of the gas transmission port stops, the air pump is used for introducing air into the pump body, the air bag is compressed upwards under the pressure of the air along with the increase of the air in the pump body, and the bead valve positioned at the water outlet is pushed open by water flow, so that the water flow in the air bag flows into the water quality monitoring unit through the water outlet pipe, and the collection of a water sample is completed. In the whole process of collecting a water sample, water flow only passes through the water inlet, the air bag and the water outlet and is not in contact with the air delivery port on the pump body outside the air bag, zero contact between the whole sampling process and air is achieved, the air bag is filled with water slowly from the water inlet under the pressure of a water body, compared with the existing water pumping device, the water flow speed is slower and milder, low flow and low speed of water sample collection are achieved, disturbance to underground water in the water sample collection process is effectively avoided, and accuracy of a detection result is further guaranteed.
Through the novel portable air bag pump that the pump body, gasbag and pearl valve are constituteed, do not have mechanical parts in the structure, not only preparation low cost, and effectively reduced the damage probability of air bag pump to make the maintenance frequency low, be fit for laying under water for a long time.
In a preferred embodiment, the air delivery port 110 is externally connected with an air pump.
In the above scheme, through the connection of gas transmission mouth and air pump for when filling water in the gasbag, can borrow the air pump and let in gas in to the pump body, make the change of pump body internal gas pressure impel the gasbag shrink, so that the water sample in the gasbag is flowed by the delivery port.
In a preferable scheme, a groove 121 is arranged around the inner wall of the water inlet 120; the ball valve 300 is disposed inside the groove 121.
In the scheme, the ball valve is limited in the groove, and then when the ball valve is moved downwards by water pressure, the ball valve is suspended in the groove, so that water flow slowly flows into the air bag through a gap between the groove and the ball valve.
In a preferred embodiment, the bottom end of the groove 121 is provided with a hollow baffle 122.
In the above scheme, through the baffle that sets up the fretwork in the bottom of recess, neither influence the passing through of rivers, can also prevent that the pearl valve excessively from moving down and seal the water inlet, in addition, can also encircle the lateral wall of recess sets up many parallel arrangement's the storage tank that is used for the holding baffle to set up the recess into under the narrow wide awl tube column structure, with the position through adjustment baffle, thereby restriction pearl valve's displacement, realize the adjustment of gap size between pearl valve and recess promptly, thereby adjust the velocity of flow that rivers got into the gasbag.
In a preferable scheme, the lower edge of the water outlet 130 and the upper edge of the groove 121 are provided with sealing rings with cambered surfaces matched with the ball valve 300.
In the above scheme, the sealing ring is arranged, so that the bead valve can seal the water outlet and the water inlet more thoroughly.
In a preferred embodiment, the balloon 200 is disposed in a cylindrical structure with a circular cross section.
In the scheme, the circular columnar air bag structure is most matched with the inner wall of the pump body, the processing is convenient, and the production cost is reduced.
In a preferred embodiment, a filter screen 123 is disposed on the water inlet 120.
In the above scheme, through the setting of filter screen on the water inlet, avoid the impurity of the great granule in aquatic to get into in the gasbag.
In a preferred embodiment, the volume of the balloon 200 is 120-180 mL.
While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, or described, but rather to cover all modifications, which would come within the scope of the appended claims, and all changes which come within the meaning and range of equivalency of the art are therefore intended to be embraced therein.
Claims (8)
1. A portable air bag pump for groundwater sampling, comprising:
the pump body is provided with an air transmission port penetrating into the pump body; the top end of the pump body is provided with a water inlet and a water outlet which are communicated with the interior of the pump body;
an airbag provided inside the pump body; the air bag is a folded telescopic bag body and is in a contracted state when no external force acts; the top end opening of the air bag is connected with the water inlet and the water outlet;
the bead valves are two spheres which are respectively arranged on the water inlet and the water outlet; the bead valve causes the expansion of the air bag along with the difference of the air flow direction in the air delivery port, covers the water inlet or the water outlet and moves up and down in a gap with the water inlet or the water outlet.
2. The portable air bag pump for groundwater sampling of claim 1, wherein the gas transmission port is externally connected with a gas pump.
3. A portable air bag pump for groundwater sampling as claimed in claim 1, wherein a groove is provided around an inner wall of the water inlet; the ball valve is arranged inside the groove.
4. A portable air bag pump for groundwater sampling as claimed in claim 3, wherein a hollowed-out baffle is provided at a bottom end of the groove.
5. The portable air bag pump for groundwater sampling as claimed in claim 3, wherein a lower edge of the water outlet and an upper edge of the groove are provided with sealing rings with cambered surfaces adapted to the ball valve.
6. A portable bladder pump for groundwater sampling as claimed in claim 1, wherein the bladder is arranged in a cylindrical configuration with a circular cross section.
7. A portable air bag pump for groundwater sampling as claimed in claim 1, wherein a filter screen is provided on the water inlet.
8. The portable balloon pump for groundwater sampling as claimed in claim 1, wherein the balloon has a capacity of 120-180 mL.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022436817.7U CN213632808U (en) | 2020-10-28 | 2020-10-28 | Portable air bag pump for underground water sampling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022436817.7U CN213632808U (en) | 2020-10-28 | 2020-10-28 | Portable air bag pump for underground water sampling |
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| Publication Number | Publication Date |
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| CN213632808U true CN213632808U (en) | 2021-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022436817.7U Active CN213632808U (en) | 2020-10-28 | 2020-10-28 | Portable air bag pump for underground water sampling |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115326461A (en) * | 2022-08-04 | 2022-11-11 | 安徽省生态环境科学研究院 | Contaminated plot sampling and enriching system |
| CN117212137A (en) * | 2023-11-09 | 2023-12-12 | 四川省地质矿产勘查开发局九0九水文地质工程地质队 | Groundwater collection device for hydraulic engineering ring geological engineering |
| CN117491086A (en) * | 2023-10-27 | 2024-02-02 | 中国电建集团西北勘测设计研究院有限公司 | Groundwater sampling device and sampling method for water environment treatment |
-
2020
- 2020-10-28 CN CN202022436817.7U patent/CN213632808U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115326461A (en) * | 2022-08-04 | 2022-11-11 | 安徽省生态环境科学研究院 | Contaminated plot sampling and enriching system |
| CN117491086A (en) * | 2023-10-27 | 2024-02-02 | 中国电建集团西北勘测设计研究院有限公司 | Groundwater sampling device and sampling method for water environment treatment |
| CN117212137A (en) * | 2023-11-09 | 2023-12-12 | 四川省地质矿产勘查开发局九0九水文地质工程地质队 | Groundwater collection device for hydraulic engineering ring geological engineering |
| CN117212137B (en) * | 2023-11-09 | 2024-01-26 | 四川省地质矿产勘查开发局九0九水文地质工程地质队 | Groundwater collection device for hydraulic engineering ring geological engineering |
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