CN219675565U - Water sample sampling device - Google Patents
Water sample sampling device Download PDFInfo
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- CN219675565U CN219675565U CN202320411366.2U CN202320411366U CN219675565U CN 219675565 U CN219675565 U CN 219675565U CN 202320411366 U CN202320411366 U CN 202320411366U CN 219675565 U CN219675565 U CN 219675565U
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- piston
- sampling device
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 168
- 238000005070 sampling Methods 0.000 title claims abstract description 106
- 238000007789 sealing Methods 0.000 claims abstract description 27
- 210000004907 gland Anatomy 0.000 claims abstract description 12
- 238000001514 detection method Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 239000003673 groundwater Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The utility model relates to a water sample sampling device which comprises a sampling tank, a sampling bag and a gland assembly, wherein the sampling tank is provided with a plenum chamber and a water cavity, air with preset pressure can be filled in the plenum chamber, the water cavity can store a water sample to be sampled, the sampling bag is arranged in the sampling tank, the water cavity is communicated with a bag opening of the sampling bag, the gland assembly comprises a piston and a sealing cover, the piston is slidably arranged in the plenum chamber, the sealing cover is connected with the piston, and the sealing cover can adaptively seal the bag opening. The piston can adaptively move according to the air pressure in the inflation chamber, so that the sealing cover is adaptively opened, water samples with specified depth enter the sampling bag from the bag opening, mixing of the water samples with different depths can be reduced, accuracy of a subsequent water sample detection result is guaranteed, and water quality conditions of underground water can be mastered accurately.
Description
Technical Field
The utility model relates to the technical field of tool equipment, in particular to a water sample sampling device.
Background
In hydrogeology, engineering geological exploration and environmental geological investigation, the water quality condition of the underground water can be mastered by the water sample taken by the water sample sampling device, and a basis is provided for evaluating and treating the groundwater environment.
In the prior art, the groundwater is sampled by an open sampler such as a sampling bottle, a sampling cylinder or a Beiler tube. Due to the unsealed arrangement of the open sampler, water samples obtained by adopting the designated depth can be mixed with water samples of other depths, so that the subsequent water sample detection result is inaccurate, and the water quality condition of underground water cannot be accurately mastered.
Therefore, a water sampling device is needed to solve the above technical problems.
Disclosure of Invention
The utility model aims to provide a water sample sampling device, which solves the problem of water sample collection caused by unsealed arrangement of an open type sampler in the prior art.
In order to achieve the above object, the present utility model provides a water sample sampling device, comprising:
a sampling tank having a plenum chamber capable of being filled with air of a preset pressure and a water chamber capable of storing a water sample to be sampled;
the sampling bag is arranged in the sampling tank, and the water cavity is communicated with a bag opening of the sampling bag;
the gland assembly comprises a piston and a sealing cover, wherein the piston is slidably arranged in the inflation chamber, the sealing cover is connected with the piston, and the sealing cover can be used for sealing the bag opening in a self-adaptive mode.
Further, the sampling tank also has a reservoir chamber, the sampling bladder being mounted within the reservoir chamber.
Further, the reservoir chamber has a first gas port configured to pump or inflate the reservoir chamber.
Further, the sampling bladder is a compressible bladder, and the bladder is compressed to empty air therein.
Further, the plenum chamber is provided with a second air port, and the plenum chamber is filled with air with preset pressure through the second air port.
Further, a water inlet and a water outlet are formed in the sampling tank, and the water inlet and the water outlet are communicated with the water cavity.
Further, the number of the water inlets and the water outlets is at least one, and the water inlets and the water outlets are arranged on the sampling tank at intervals and are communicated with the water cavity.
Further, the number of the water inlet and the water outlet is four, and the four water inlet and the water outlet are symmetrically arranged on two sides of the sealing cover.
Further, the gland assembly also comprises a connecting piece, one end of the connecting piece is connected with the piston, and the other end of the connecting piece is connected with the sealing cover.
Further, the water sample sampling device further comprises a handle, and the handle is arranged on the sampling tank.
The beneficial effects of the utility model are as follows:
the utility model provides a water sample sampling device which comprises a sampling tank, a sampling bag and a gland assembly, wherein the sampling tank is provided with a plenum chamber and a water cavity, air with preset pressure can be filled in the plenum chamber, the water cavity can store a water sample to be sampled, the sampling bag is arranged in the sampling tank, the water cavity is communicated with a bag opening of the sampling bag, the gland assembly comprises a piston and a sealing cover, the piston is slidably arranged in the plenum chamber, the sealing cover is connected with the piston, and the sealing cover can adaptively seal the bag opening. Before sampling, the bag opening is plugged by a sealing cover, air with preset pressure is filled in the inflation chamber, the preset pressure is equal to the water pressure of the designated depth, and then the water sample sampling device is lowered to the designated depth. In the process of lowering, the preset pressure filled in the inflating chamber at one side of the piston is larger than the water pressure at one side of the water cavity, so that the sealing cover is abutted against the bag opening until the water sample sampling device is lowered to the specified depth, the preset pressure filled in the inflating chamber at one side of the piston is equal to or smaller than the water pressure at one side of the water cavity, the piston drives the sealing cover to move upwards, the bag opening is opened, and a water sample at the specified depth enters the sampling bag from the bag opening. The gland assembly can be used for adaptively plugging or opening the bag opening according to the air pressure in the inflation chamber, so that the mixing of water samples with different depths can be reduced, the accuracy of a subsequent water sample detection result is ensured, and the water quality condition of underground water can be mastered more accurately.
Drawings
FIG. 1 is a schematic diagram of the structure of an initial state of a water sample sampling device according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram of a water sampling device according to an embodiment of the present utility model after the water sampling device compresses a pouch and seals a pouch opening;
FIG. 3 is a schematic diagram of a water sample sampling device according to an embodiment of the present utility model;
fig. 4 is a schematic structural diagram of a water sample sampling device according to an embodiment of the present utility model when lifted.
In the figure:
100-water sample;
1-a sampling tank; 2-sampling capsules; 3-gland assembly; 4-lifting handles;
11-a reservoir; a 12-plenum; 13-water inlet and outlet; 14-water cavity; 21-a capsular bag opening; 31-capping; 32-a piston; 33-a connector;
111-a first port; 121-a second port.
Detailed Description
The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the drawings related to the present utility model are shown.
In the present utility model, directional terms such as "upper", "lower", "left", "right", "inner" and "outer" are used for convenience of understanding, and thus do not limit the scope of the present utility model unless otherwise specified.
In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
The embodiment provides a water sample sampling device, which can be used for sampling groundwater. The water sample sampling device can be opened or closed in a self-adaptive manner according to the water pressures of the water samples 100 with different depths, so that the mixing of the water samples 100 with different depths can be reduced, the accuracy of the detection result of the subsequent water samples 100 is ensured, the water quality condition of groundwater can be mastered more accurately, and a reliable basis is provided for evaluating and treating groundwater environment.
As shown in fig. 1-4, the water sample sampling device comprises a sampling tank 1, a sampling bag 2 and a gland assembly 3, wherein the sampling tank 1 is provided with a plenum chamber 12 and a water cavity 14, the plenum chamber 12 can be filled with air with preset pressure, the water cavity 14 can store a water sample 100 to be sampled, the sampling bag 2 is arranged in the sampling tank 1, the water cavity 14 is communicated with a bag opening 21 of the sampling bag 2, the gland assembly 3 comprises a piston 32 and a sealing cover 31, the piston 32 is slidably arranged in the plenum chamber 12, the sealing cover 31 is connected with the piston 32, and the sealing cover 31 can adaptively seal the bag opening 21. Before sampling, the cover 31 seals the bag opening 21, and air with preset pressure is filled in the plenum chamber 12, the preset pressure is equal to the water pressure of the designated depth, and then the water sampling device is lowered to the designated depth. In the process of lowering, as the preset pressure filled in the plenum chamber 12 at one side of the piston 32 is larger than the water pressure at one side of the water cavity 14, the sealing cover 31 is abutted against the bag opening 21 until the water sample sampling device is lowered to the designated depth, the preset pressure filled in the plenum chamber 12 at one side of the piston 32 is equal to or smaller than the water pressure at one side of the water cavity 14, so that the piston 32 drives the sealing cover 31 to move upwards, the bag opening 21 is opened, and the water sample 100 at the designated depth enters the sampling bag 2 from the bag opening 21. The gland assembly 3 can reduce the mixing of water samples 100 with different depths, reduce the influence of chemical substances in the water samples 100 with other depths on the water samples 100 with specified depths, ensure the accuracy of the detection result of the subsequent water samples, and can master the water quality condition of the underground water more accurately.
Further, the sampling tank 1 further has a reservoir chamber 11, and the sampling bladder 2 is installed in the reservoir chamber 11.
Further, the reservoir chamber 11 has a first air port 111, the first air port 111 being configured to pump or inflate the reservoir chamber 11.
Further, the sampling bladder 2 is a compressible bladder by which air in the bladder is evacuated.
Specifically, air can be filled into the bag storage chamber 11 through the first air port 111, and the bag is compressed by the air pressure filled in the bag storage chamber 11, so that the air in the bag is emptied, and the water sample 100 with the specified depth can be conveniently sucked into the bag.
Further, the air in the bag storage chamber 11 can be pumped out through the first air port 111, so that a negative pressure state is formed in the bag storage chamber 11, which is beneficial to quickly sucking the water sample 100 when the bag port 21 is opened.
Further, the plenum chamber 12 has a second air port 121, and the plenum chamber 12 is filled with air of a predetermined pressure through the second air port 121.
Specifically, the preset pressure is equal to the water pressure at the specified depth h, the water pressure p=pgh at the specified depth h, ρ is the density of water, g is the gravitational acceleration.
Further, a water inlet and outlet 13 is formed in the sampling tank 1, the water inlet and outlet 13 is communicated with the water cavity 14, and the water sample 100 enters the water cavity 14 from the water inlet and outlet 13.
Further, the number of the water inlet and outlet ports 13 is at least one, and each water inlet and outlet port 13 is arranged on the sampling tank 1 at intervals and is communicated with the water cavity 14.
Further, the number of the water inlets 13 is four, and the four water inlets 13 are symmetrically arranged at two sides of the sealing cover 31. This arrangement facilitates stable entry of the water sample 100 into the water chamber 14.
In this embodiment, the volume of the water chamber 14 is small, as long as it can accommodate the space in which the cover 31 is lifted. The arrangement is such that when the water sample sampling device is lowered by the winch, the amount of water sample 100 entering the water layer above the specified depth in the water cavity 14 is less due to the volume limitation of the water cavity 14 itself, reducing the disturbance to the sampling.
Further, the rope on the winch is connected with the water sample sampling device, the winch is provided with a device for marking the lowering depth, and the sampling depth can be a depth range, so that the water sample sampling device can be lowered to the designated depth and can not be lowered continuously, and the sampling accuracy is ensured.
Further, the capping assembly 3 further includes a connection member 33, one end of the connection member 33 is connected to the piston 32, and the other end is connected to the capping 31.
Further, the water sample sampling device also comprises a handle 4, and the handle 4 is arranged on the sampling tank 1. The handle 4 is arranged to facilitate subsequent removal of the water sample 100 at the designated depth.
The use process of the water sample sampling device provided by the embodiment is specifically as follows:
1) Filling air into the bag storage chamber 11 through the first air port 111, and compressing the bag by the air pressure filled in the bag storage chamber 11, thereby evacuating the air in the bag (as shown in fig. 2);
2) The cover 31 is pulled down, so that the cover 31 seals the bag opening 21, in the process, the piston 32 moves down along with the cover 31, and the piston 32 stops by virtue of friction force with the inner wall of the sampling tank 1;
3) The second air port 121 is used for filling air with preset pressure into the plenum chamber 12, and in the process, the air pressure in the plenum chamber 12 presses down the piston 32, so that the sealing cover 31 is abutted against the bag port 21, and the air tightness is good;
4) The air in the bag storage chamber 11 is pumped out through the first air port 111, so that a negative pressure state is formed in the bag storage chamber 11;
5) The water sample sampling device is lowered onto a water sample layer with a specified depth by utilizing a winch, in the process, a water sample 100 in the water sample layer with the depth above the specified depth enters the water cavity 14 through the water inlet and outlet 13, the preset pressure filled in the plenum chamber 12 at one side of the piston 32 is larger than the water pressure at one side of the water cavity 14, the sealing cover 31 is abutted against the bag opening 21, and the water sample 100 cannot enter the sampling bag 2 until the water sample sampling device is lowered to the specified depth;
6) After the water sample sampling device is lowered to a specified depth, the preset pressure filled in the plenum chamber 12 at one side of the piston 32 is equal to or less than the water pressure at one side of the water cavity 14, so that the piston 32 drives the sealing cover 31 to move upwards, the bag opening 21 is opened, and the water sample 100 at the specified depth enters the sampling bag 2 from the bag opening 21 (as shown in fig. 3);
7) After the sampling bag 2 is filled with the water sample 100 with the designated depth, the water sample sampling device is lifted up, and the piston 32 moves downwards due to the pressure change at the two sides of the piston 32, so that the sealing cover 31 is driven to move downwards, and the bag opening 21 is plugged again (as shown in fig. 4);
8) After the water sample sampling device is lifted to the ground surface, water in the water cavity 14 of the water inlet and outlet port 13 is firstly passed through, then the second air port 121 is opened, air in the plenum chamber 12 is discharged, the piston 32 is pulled up, the bag port 21 is opened, the sampling bag 2 is extruded, the water sample 100 collected in the sampling bag 2 flows out, and the sampling of the water sample 100 is completed.
While the utility model has been described in detail in the foregoing general description, embodiments and experiments, it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, such modifications or improvements may be made without departing from the spirit of the utility model and are intended to be within the scope of the utility model as claimed.
Claims (10)
1. A water sampling device, comprising:
a sampling tank (1) having a plenum chamber (12) and a water chamber (14), said plenum chamber (12) being capable of being filled with air at a preset pressure, said water chamber (14) being capable of storing a sample of water (100) to be sampled;
a sampling bag (2) installed in the sampling tank (1), wherein the water cavity (14) is communicated with a bag opening (21) of the sampling bag (2);
gland assembly (3), it includes piston (32) and closing cap (31), piston (32) slidable set up in plenum chamber (12), closing cap (31) with piston (32) are connected, closing cap (31) can self-adaptation shutoff pocket (21).
2. The water sample sampling device according to claim 1, characterized in that the sampling tank (1) further has a reservoir chamber (11), the sampling bladder (2) being mounted within the reservoir chamber (11).
3. The water sampling device according to claim 2, wherein the reservoir chamber (11) has a first gas port (111), the first gas port (111) being configured to pump or inflate the reservoir chamber (11).
4. A water sampling device according to claim 1 or 3, wherein the sampling bladder (2) is a compressible bladder by which air in the bladder is evacuated.
5. The water sampling device according to claim 1, wherein the plenum (12) has a second port (121), the plenum (12) being filled with air of a preset pressure through the second port (121).
6. The water sample sampling device according to claim 1, wherein the sampling tank (1) is provided with a water inlet and outlet (13), and the water inlet and outlet (13) is communicated with the water cavity (14).
7. The water sampling device according to claim 6, wherein the number of the water inlet and outlet ports (13) is at least one, and each water inlet and outlet port (13) is arranged on the sampling tank (1) at intervals and is communicated with the water cavity (14).
8. The water sampling device according to claim 7, wherein the number of the water inlet and outlet ports (13) is four, and the four water inlet and outlet ports (13) are symmetrically arranged at two sides of the sealing cover (31).
9. The water sampling device according to claim 1, wherein the gland assembly (3) further comprises a connector (33), one end of the connector (33) being connected to the piston (32) and the other end being connected to the cover (31).
10. The water sample sampling device according to claim 1, further comprising a handle (4), the handle (4) being arranged on the sampling tank (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320411366.2U CN219675565U (en) | 2023-02-27 | 2023-02-27 | Water sample sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320411366.2U CN219675565U (en) | 2023-02-27 | 2023-02-27 | Water sample sampling device |
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| Publication Number | Publication Date |
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| CN219675565U true CN219675565U (en) | 2023-09-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202320411366.2U Active CN219675565U (en) | 2023-02-27 | 2023-02-27 | Water sample sampling device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117288525A (en) * | 2023-09-25 | 2023-12-26 | 宁波华东核工业勘察设计院集团有限公司 | Prospecting hole water sampling device |
-
2023
- 2023-02-27 CN CN202320411366.2U patent/CN219675565U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117288525A (en) * | 2023-09-25 | 2023-12-26 | 宁波华东核工业勘察设计院集团有限公司 | Prospecting hole water sampling device |
| CN117288525B (en) * | 2023-09-25 | 2024-06-04 | 宁波华东核工业勘察设计院集团有限公司 | Prospecting hole water sampling device |
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