CN219641334U - Groundwater sampler - Google Patents

Abstract

The utility model relates to the field of sampling, and discloses an underground water sampler, which comprises a sampling tube, a water sample container and a rotary driving mechanism; the sampling tube is provided with a tube cavity and a first water through hole communicated with the tube cavity; the rotary driving mechanism comprises a driving piece and a rotary frame; the rotary frame and the driving piece are both arranged in the cylinder cavity, and the driving piece drives the rotary frame to rotate between the sampling position and the sealing position by taking the axis of the cylinder cavity as the center line; the water sample containers are at least two in number, are movably arranged in the cylinder cavity and are positioned on the rotating path of the rotating frame, and are provided with second water through holes; at the sampling position, the second water through hole is communicated with the first water through hole; in the sealed position, the second water through hole is sealed by the sampling tube. The underground water sampler provided by the utility model can solve the problem that the existing underground water sampler needs to lift for multiple times to finish layered sampling.

Description

Groundwater sampler

Technical Field

The utility model relates to the field of sampling, in particular to an underground water sampler.

Background

Hydrogeology drilling (hydrohole) is to be referred to for the investigation and the exploration of hydrogeology and bore the aperture that becomes, and current groundwater sample ware includes the sampling tube, and the scientific research personnel need be through lifting means such as electric hoist and rope cooperation lift groundwater sample ware when carrying out groundwater collection to with groundwater sample ware from the downthehole target depth of putting down in groundwater of hydrohole, the groundwater of this target depth department is gathered to the sampling tube, and finally the stay cord is rolled up and is removed groundwater sample ware from the downhole of hydrohole. However, the existing groundwater sampler has the following technical problems in actual use:

in order to avoid the influence of the mutual mixing of collected water samples with different depths on the detection result, the prior groundwater sampler is generally provided with only one sampling tube, and only a single sampling tube is used for accommodating water samples with the same depth.

Disclosure of Invention

(one) solving the technical problems

The utility model provides a groundwater sampler, which can solve the problem that the existing groundwater sampler needs to lift for a plurality of times to finish layered sampling.

(II) technical scheme

In order to solve the technical problems, the utility model provides the following technical scheme: a groundwater sampler, comprising:

the sampling tube is provided with a tube cavity and a first water through hole communicated with the tube cavity;

a rotation driving mechanism including a driving piece and a rotating frame; the rotary frame and the driving piece are both arranged in the cylinder cavity, and the driving piece drives the rotary frame to rotate between the sampling position and the sealing position by taking the axis of the cylinder cavity as the center line;

the water sample containers are at least two in number, are movably arranged in the cylinder cavity and are positioned on the rotating path of the rotating frame, and are provided with second water through holes;

wherein, at the sampling position, the second water through hole is communicated with the first water through hole; in the sealed position, the second water through hole is sealed by the sampling tube.

Further, a water pipe connector for connecting a water outlet pipeline is arranged at the first water through hole at the outer side of the sampling tube.

Further, the sampling tube comprises a tube cover and a main tube body, the tube cover and the main tube body are detachably and fixedly connected, and the driving piece and the rotating frame are respectively arranged in the tube cover and the main tube body.

Further, the cylinder cover comprises a hanging ring for connecting the lifting rope.

The rotary frame comprises a rotary shaft and at least two partition boards; the rotating shaft is rotationally arranged in the main cylinder and is fixedly connected with the output end of the driving piece in the circumferential direction; each baffle plate is annularly and alternately arranged and fixedly connected with the rotating shaft, and the water sample container is positioned between two adjacent baffle plates.

The sampling tube further comprises an elastic sealing plate, and the elastic sealing plate is arranged between the tube cover and the main tube body; one end of the rotating shaft penetrates through the elastic sealing plate, and the other end of the rotating shaft is rotationally connected with the bottom in the main cylinder body.

The underground water sampler further comprises a position sensing piece and a control piece, wherein the position sensing piece and the control piece are arranged in the cylinder cover, and the position sensing piece is used for sensing the depth of the underground water sampler in underground water; the control piece is respectively and electrically connected with the position sensing piece and the driving piece and is used for receiving the depth sensing value sent by the position sensing piece and controlling the driving piece to rotate the water sample container.

(III) beneficial effects

Compared with the prior art, the underground water sampler provided by the utility model has the following beneficial effects:

when the underground water sampler provided by the utility model is used, firstly, the underground water sampler is lowered to a target depth in underground water, and then the rotary frame is driven to rotate to a sampling position by the rotary driving mechanism, so that the second water through hole of one water sample container is in counterpoint communication with the first water through hole of the sampling cylinder, and at the moment, the underground water with the target depth can enter the corresponding water sample container through the first water through hole and the second water through hole in sequence; after the underground water with the target depth is collected, the rotary driving mechanism continuously drives the rotary frame to rotate to a sealing position, so that the second water through hole of the water sample container is completely misplaced with the first water through hole of the sampling tube, the sampling tube prevents the underground water from entering all the water sample containers, and simultaneously prevents the underground water from flowing out of the water sample containers; then the underground water sampler continues to descend or ascend to the next target depth, the rotary driving mechanism continues to drive the rotary frame to rotate to the sampling position, the second water through hole of the next water sample container is in counterpoint communication with the first water through hole of the sampling tube, the underground water of the next target depth is collected, the process is repeated continuously until the underground water of all the target depths is collected, and the underground water sampler ascends to move out of the underground water. So, this groundwater sampler accessible a plurality of water sample containers sample respectively and the groundwater of independent storage different degree of depth, effectively avoid the problem that groundwater sample of different degree of depth mixes, and this layering sampling process can concentrate this groundwater sampler single lift in-process to accomplish, and is very convenient, has solved the problem that current groundwater sampler needs to go up and down many times to accomplish layering sampling, has saved sampling time greatly, has improved sampling efficiency.

Drawings

FIG. 1 is a perspective view of an groundwater sampler according to an embodiment;

FIG. 2 is a perspective view of the main cylinder and rotary drive mechanism in an embodiment;

fig. 3 is a structural cross-sectional view of the groundwater sampler in an embodiment.

Reference numerals: 1. a sampling tube; 11. a cylinder cover; 111. a hanging ring; 12. a main cylinder; 121. a first water through hole; 122. a water pipe joint; 13. an elastic sealing plate; 14. a barrel cavity; 2. a water sample container; 21. a second water through hole; 3. a rotary driving mechanism; 31. a driving member; 32. a rotating frame; 321. a rotating shaft; 322. a partition plate; 4. an elastic sealing ring; 41. a relief through hole; 5. a position sensing member; 6. and (5) a control member.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1, 2 and 3, wherein fig. 1 is a perspective view of an embodiment of a groundwater sampler, fig. 2 is a perspective view of a main cylinder and a rotation driving mechanism, and fig. 3 is a structural cross-sectional view of an embodiment of a groundwater sampler.

An underground water sampler is used for solving the problem that the existing underground water sampler needs to lift for a plurality of times to finish layered sampling.

The underground water sampler comprises a sampling tube 1, a water sample container 2 and a rotary driving mechanism 3.

The sampling tube 1 is provided with a tube cavity 14, and a first water through hole 121 is formed in the sampling tube 1.

The first water passage hole 121 communicates with the cylindrical chamber 14 so that groundwater can flow into or flow out of the cylindrical chamber 14.

The rotation driving mechanism 3 includes a driving piece 31 and a rotating frame 32.

The rotary frame 32 is rotatably installed in the cylinder 14; the driving member 31 may be a driving device such as a rotary motor, and the driving member 31 may be fixedly mounted in the cylinder 14 by a screw, and the output end of the driving member 31 is fixedly connected to the rotary frame 32, so that when the driving member 31 is started, the rotary frame 32 can be driven to rotate between the sampling position and the sealing position with the axis of the cylinder 14 as the center line.

The number of the water sample containers 2 is multiple, the water sample containers 2 are movably arranged in the cylinder cavity 14 and positioned on the rotating path of the rotating frame 32, and the water sample containers 2 are provided with second water through holes 21.

The water sample container 2 is used for containing collected groundwater samples, and a plurality of water sample containers 2 can be used for containing groundwater samples with different depths. The water sample container 2 is driven by the rotating frame 32 to rotate together to a sampling position or a sealing position, wherein the second water through hole 21 is communicated with the first water through hole 121 in the sampling position, and at the moment, the underground water can sequentially enter the corresponding water sample container 2 through the first water through hole 121 and the second water through hole 21, or can flow out of the corresponding water sample container 2; in the sealed position, the second water through-hole 21 is sealed by the sampling cartridge 1, at which time the sampling cartridge 1 prevents groundwater from entering all of the water sample containers 2, while simultaneously preventing groundwater from flowing out of any of the water sample containers 2.

When the underground water sampler in the technical scheme is used, firstly, the underground water sampler is lowered to a target depth position in underground water through the cooperation of lifting equipment such as an electric hoist and ropes, and then the rotary frame 32 is driven to rotate to a sampling position through the rotary driving mechanism 3, so that the second water through hole 21 of one water sample container 2 is in counterpoint communication with the first water through hole 121 of the sampling tube 1, and underground water with the target depth can be collected in the water sample container 2; after the underground water of the target depth is collected, the rotary driving mechanism 3 continues to drive the rotary frame 32 to rotate to a sealing position, so that the second water through holes 21 of the water sample containers 2 and the first water through holes 121 of the sampling tube 1 are completely misplaced, the underground water is prevented from entering all the water sample containers 2, and the underground water is prevented from flowing out of any water sample containers 2; and then continuously lowering or lifting the groundwater sampler to the next target depth, continuously driving the rotary frame 32 to rotate to a sampling position by the rotary driving mechanism 3, enabling the second water through hole 21 of the next water sample container 2 to be in para-position communication with the first water through hole 121 of the sampling tube 1, completing the collection of groundwater of the next target depth, repeating the steps until the collection of groundwater of all the target depths is completed, and lifting the groundwater sampler out of the groundwater. So, this groundwater sampler accessible a plurality of water sample containers 2 sample respectively and the groundwater of independent storage different degree of depth, effectively avoid the problem that groundwater sample of different degree of depth mixes, and this layering sampling process can concentrate this groundwater sampler single lift in-process to accomplish, and is very convenient, has solved current groundwater sampler and has needed a lot of lift to accomplish the problem of layering sampling, has saved sampling time greatly, has improved sampling efficiency.

In one embodiment of the sampling tube 1, the first water through hole 121 on the outer side of the sampling tube 1 is integrally connected with the water pipe connector 122, so that the water pipe connector 122 is of a tubular structure, water inlet and water outlet of the first water through hole 121 are not affected, the water pipe connector 122 can be used for connecting a water outlet pipeline, when a water sample in the water sample container 2 needs to be taken out for detection, the water sample in the water sample container 2 can be taken out through the water outlet pipeline instead of being directly poured out, and the water sample is prevented from being directly exposed in the outside air, so that the possibility of volatilization of partial substances in the water sample is reduced.

In one embodiment of the sampling tube 1, the sampling tube 1 comprises a tube cover 11 and a main tube body 12, the driving piece 31 and the rotating frame 32 are respectively installed in the tube cover 11 and the main tube body 12, the tube cover 11 and the main tube body 12 can be detachably and fixedly connected in a threaded or clamping mode and the like, and the groundwater sampler is convenient to disassemble and assemble so as to be convenient for subsequent maintenance or cleaning.

In one embodiment of the cover 11, the cover 11 includes a lifting loop 111, the lifting loop 111 being adapted to connect a lifting cord. In this way, the lifting ring 111 connected with the lifting rope can drive the underground water sampler to lift to the target depth in the underground water or leave the underground water, the lifting rope can steplessly adjust the lifting depth of the underground water sampler, and the lifting depth range is larger than the telescopic range of equipment such as a cylinder, so that the underground water sampler is convenient to sample.

In one embodiment of the rotating frame 32, the rotating frame 32 includes a rotating shaft 321 and a plurality of partition plates 322, and the rotating shaft 321 is rotatably installed in the main cylinder 12 and fixedly connected with the output end of the driving member 31 in the circumferential direction; each baffle 322 is annularly and alternately distributed, and one side of each baffle 322 is welded or integrally connected with the rotating shaft 321, and the water sample container 2 is positioned between two adjacent baffles 322. Thus, when the driving piece 31 drives the rotating shaft 321 to rotate, the partition plate 322 rotates along with the rotating shaft, so that all the water sample containers 2 can be pushed to synchronously rotate, and the water sample container is quite convenient.

When the second water through hole 21 is dislocated from the first water through hole 121, an elastic sealing ring 4 is arranged between the sampling tube 1 and the water sample container 2 in order to ensure that the inflow or outflow of the groundwater into or out of the water sample container 2 can be completely stopped. In this embodiment, the sampling tube 1 is cylindrical, and a plurality of water sample containers 2 and the rotating frame 32 are combined to form a cylinder in clearance fit with the inside of the main cylinder 12, and the elastic sealing ring 4 is sleeved on the cylinder to eliminate the gap between the sampling tube 1 and the water sample containers 2. The elastic sealing ring 4 is provided with a plurality of yielding through holes 41, the plurality of yielding through holes 41 are respectively communicated with each second water through hole 21 in a one-to-one counterpoint manner, so that when the second water through holes 21 are communicated with the first water through holes 121 in the counterpoint manner, the yielding through holes 41 provide a yielding effect so that underground water can normally flow in or flow out, and when the second water through holes 21 are dislocated with the first water through holes 121, the elastic sealing ring 4 plays a sealing role, so that the underground water can be prevented from penetrating between the sampling cylinder 1 and the water sample container 2 and even mixing with water samples in other water sample containers 2, and the subsequent detection result is influenced.

In one embodiment of the cartridge 1, the cartridge 1 further comprises an elastic sealing plate 13, the elastic sealing plate 13 being located between the cap 11 and the main cylinder 12; one end of the rotating shaft 321 penetrates through the elastic sealing plate 13 and is rotationally connected with the elastic sealing plate 13 through a waterproof sealing bearing, and the other end of the rotating shaft is rotationally connected with the bottom in the main cylinder 12 through the waterproof sealing bearing. Thus, when the cylinder cover 11 and the main cylinder 12 are detachably connected, the elastic sealing plate 13 is fastened between the cylinder cover 11 and the main cylinder 12, and the elastic sealing plate 13 can be used for sealing the joint of the cylinder cover 11 and the main cylinder 12 and also can be used for sealing the inside of the cylinder cover 11 so as to prevent water in the water sample container 2 from penetrating into the cylinder cover 11 and damaging the driving piece 31.

In one embodiment of the telescopic frame, the groundwater sampler further comprises a position sensing element 5 and a control element 6, wherein the position sensing element 5 is installed on the elastic sealing plate 13 and is positioned in the cylinder cover 11, and a conventional distance measuring instrument such as a radar range finder can be used, and as the first water through hole 121 is close to the elastic sealing plate 13, the position sensing element 5 can accurately sense and measure the depth of the first water through hole 121 in groundwater so as to determine whether the groundwater sampler reaches a target sampling depth in groundwater; the control member 6 is installed in the cylinder cover 11, and an existing controller can be used, the input end of the control member 6 is electrically connected with the position sensing member 5, and the output end of the control member 6 is electrically connected with the driving member 31. Thus, when the groundwater sampler is lifted in groundwater, the control member 6 receives the depth sensing value sent by the position sensing member 5, and judges whether the depth sensing value is located in the target depth range, if the depth sensing value sent by the position sensing member 5 is located in the target depth range (namely, indicates that the groundwater sampler reaches the target depth), the groundwater sampler stops lifting, and the control member 6 controls the driving member 31 to start, rotates the water sample container 2, enables the second water through hole 21 of one empty water sample container 2 to be in para-position communication with the first water through hole 121, controls the driving member 6 to continuously rotate the water sample container 2 after completing groundwater collection of the target depth, enables the second water through hole 21 of the water sample container 2 to be in dislocation cut-off with the first water through hole 121, and then continuously lifts the groundwater sampler to the next target depth, controls the driving member 31 to rotate the water sample container 2, enables the second water through hole 21 of the next adjacent empty water sample container 2 to be in para-position communication with the first water through hole 121, and so on until groundwater collection of all the target depths is completed. So, this groundwater sampler uses through position sensing spare 5, control spare 6 and driving piece 31 cooperation, can be in same lift in-process ground water collection in each water sample container 2 of each target degree of depth automatically, degree of automation is high, facilitates the use.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. A groundwater sampler, comprising:

the sampling tube is provided with a tube cavity and a first water through hole communicated with the tube cavity;

a rotation driving mechanism including a driving piece and a rotating frame; the rotary frame and the driving piece are both arranged in the cylinder cavity, and the driving piece drives the rotary frame to rotate between a sampling position and a sealing position by taking the axis of the cylinder cavity as a central line;

the water sample containers are at least two in number, are movably arranged in the cylinder cavity and are positioned on the rotating path of the rotating frame, and are provided with second water through holes;

wherein, at the sampling position, the second water through hole is communicated with the first water through hole; in the sealing position, the second water through hole is sealed by the sampling tube.

2. The groundwater sampler of claim 1, wherein a water pipe connector for connecting with a water outlet pipeline is arranged at the first water through hole at the outer side of the sampling tube.

3. The groundwater sampler of claim 1 or 2, wherein the sampling tube comprises a tube cover and a main tube body, the tube cover and the main tube body are detachably and fixedly connected, and the driving member and the rotating frame are respectively arranged in the tube cover and the main tube body.

4. A groundwater sampler according to claim 3, wherein the cover comprises a lifting ring for attachment of a lifting rope.

5. A groundwater sampler according to claim 3 wherein the rotating frame comprises a shaft and at least two baffles; the rotating shaft is rotationally arranged in the main cylinder and is fixedly connected with the output end of the driving piece in the circumferential direction; each baffle is annularly and alternately arranged and fixedly connected with the rotating shaft, and the water sample container is positioned between two adjacent baffles.

6. The groundwater sampler of claim 5, wherein the sampling tube further comprises an elastic sealing plate arranged between the tube cover and the main tube body; one end of the rotating shaft penetrates through the elastic sealing plate, and the other end of the rotating shaft is rotationally connected with the bottom in the main cylinder body.

7. The groundwater sampler of claim 6, further comprising a position sensing member and a control member, the position sensing member and the control member being disposed within the cover, the position sensing member being configured to sense a depth of the groundwater sampler within groundwater; the control piece is respectively and electrically connected with the position sensing piece and the driving piece and is used for receiving the depth sensing value sent by the position sensing piece and controlling the driving piece to rotate the water sample container.