CN112525605A

CN112525605A - Portable groundwater depthkeeping sampling device suitable for desert area

Info

Publication number: CN112525605A
Application number: CN202011300688.7A
Authority: CN
Inventors: 王雄师; 冯乐涛; 张连科
Original assignee: Geological Natural Disaster Prevention Research Institute Gansu Academy Of Sciences
Current assignee: Geological Natural Disaster Prevention Research Institute Gansu Academy Of Sciences
Priority date: 2020-11-19
Filing date: 2020-11-19
Publication date: 2021-03-19

Abstract

The invention discloses a portable groundwater depth-setting sampling device suitable for desert areas, which comprises a base, wherein a fixed frame is arranged on the outer wall of the top of the base, a rotating pipe is rotatably arranged on the fixed frame, a hose is wound on the outer wall of the rotating pipe, one end of the hose is communicated with the rotating pipe, a sampling mechanism is arranged at the other end of the hose, an adjusting wheel is arranged on the outer wall of one side of the rotating pipe, an air suction cylinder is arranged on the outer wall of the rotating pipe, the air suction cylinder and the rotating pipe are communicated through a communicating pipe, a control valve is arranged on the outer wall of the communicating pipe, a limiting mechanism is arranged on the fixed frame, a supporting mechanism is arranged on the base, the sampling mechanism comprises a sampling cylinder, a sliding rod, a piston plate, a collecting cylinder and a rubber pad, and an installation. The invention effectively prevents groundwater with other depths from immersing in the sampling cylinder in the process of moving the sampling cylinder up and down, effectively realizes depth-fixed sampling and has better sampling effect.

Description

Portable groundwater depthkeeping sampling device suitable for desert area

Technical Field

The invention relates to the technical field of underground water sampling, in particular to a portable underground water depth-fixing sampling device suitable for desert areas.

Background

The underground water is various forms of gravity water buried below the earth surface, is used as important water bodies on the earth and has close relation with human society, the storage of the underground water forms a huge reservoir in the underground, and the underground water is an important water source of water for agricultural irrigation, industrial and mining enterprises and urban living by using stable water supply conditions and good water quality and becomes an essential important water resource for human society. The loess coverage area of the desert in the northwest region of China is large, and the underground water in the loess coverage area is an important local water resource. The research on the physicochemical properties of the material is an important prerequisite for reasonable development and utilization.

At present, in order to research groundwater, need use sampling device to carry out the depthkeeping sample to groundwater, however, current sampling device still has certain weak point, and after the sampling tube contacted with groundwater, groundwater can directly get into the sampling tube, can't carry out the layering sample, and the physicochemical property of different degree of depth groundwater, cause often are different, mix the sample and influence the analysis result. In addition, in desert loess area, the groundwater is more sandy soil, and the water sample is more muddy, consequently, need design a portable groundwater sampling device urgently to acquire pure groundwater sample.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides a portable groundwater depth-fixing sampling device suitable for desert areas.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a portable groundwater depthkeeping sampling device suitable for desert area, includes the base, the top outer wall of base is provided with the mount, and rotates on the mount and be provided with the rotating tube, the outer wall solderless wrapped connection of rotating tube has the hose, the one end and the rotating tube of hose are linked together, the other end of hose is provided with sampling mechanism, one side outer wall of rotating tube is provided with the regulating wheel, and the outer wall of rotating tube is provided with the suction tube, be linked together through communicating pipe between suction tube and the rotating tube, the outer wall of communicating pipe is provided with the control valve, be provided with stop gear on the mount, be provided with supporting mechanism on the base, the inner wall of collection tube is provided with the filter membrane, and the quantity of filter membrane is two, and is adjacent be provided with.

As a still further scheme of the invention: sampling mechanism includes sampler barrel, slide bar, piston plate, surge drum and rubber pad, the top outer wall of sampler barrel is opened there is the installing port, and the other end of hose sets up in the installing port, the fixed bottom outer wall that sets up in the sampler barrel of surge drum, and the piston plate slides and sets up in the sampler barrel, the inner wall of sampler barrel is provided with the ring, and the slide bar slides and sets up in the ring, the bottom of slide bar and the outer wall fixed connection of piston plate, the outer wall of sampler barrel is provided with the gag lever post, and the bottom fixedly connected with dog of gag lever post, the outer wall sliding connection of gag lever post has the lifter plate, and the rubber pad is fixed to be set up in the top outer wall of lifter plate, and connects through the lifting rope between rubber pad and the piston.

As a still further scheme of the invention: the supporting mechanism comprises a sliding plate and a guide wheel, a sliding groove is formed in the outer wall of one side of the base, the sliding plate is arranged in the sliding groove in a sliding mode, a supporting rod is fixedly connected to the outer wall of the top of the sliding plate, the guide wheel is fixedly arranged at one end of the supporting rod, and the outer wall of the hose is matched with the guide groove in the guide wheel.

As a still further scheme of the invention: the utility model discloses a slide, including slide, base, fixed orifices, inserted bar, board, spring, the top outer wall of slide is opened there is the jack that the equidistance distributes, the top outer wall of base is provided with the mounting bracket, and the top outer wall of mounting bracket opens there is the fixed orifices, and the inner wall sliding connection of fixed orifices has the inserted bar, the board is held to the top fixedly connected with of inserted bar, and holds the bottom fixedly connected with spring of board, the bottom of spring and the top outer wall fixed connection of mounting bracket, the outer wall and the jack of inserted.

As a still further scheme of the invention: four corners of the outer wall of the bottom of the base are provided with universal wheels.

As a still further scheme of the invention: the limiting mechanism comprises a fixed cylinder, a push rod and a clamping block, the fixed cylinder is fixedly arranged on the outer wall of one side of the fixing frame, the push rod is arranged in the fixed cylinder in a sliding mode, the clamping block is fixedly arranged at one end of the push rod, clamping grooves which are distributed annularly are arranged on the outer wall of the rotating tube at equal intervals, and the clamping block is matched with the clamping grooves.

As a still further scheme of the invention: four corners of the outer wall of the top of the base are provided with limiting openings, and ground piles are inserted into the inner walls of the limiting openings.

As a still further scheme of the invention: the outer wall of ground stake is provided with the barb that multirow equidistance distributed.

The invention has the beneficial effects that:

1. through the arranged sampling tube, the slide rod, the piston plate, the limiting rod, the lifting plate, the rubber pad, the hose, the rotating tube and the air pumping tube, the rotating adjusting wheel can be rotated to drive the rotating tube to rotate, so that the sampling tube at one end of the hose is continuously descended until the sampling tube descends to the depth required to be sampled, then the air pumping tube can be controlled, air in the rotating tube is pumped out through the communicating pipe, air in the sampling tube can be pumped out due to the hose connection between the rotating tube and the sampling tube, at the moment, the piston plate can move upwards in the sampling tube, the slide rod on the piston plate can slide on the circular ring, the piston plate is ensured not to deviate when moving, groundwater can be pumped into the sampling tube through the collecting tube in the process of moving the piston plate upwards, and along with the continuous movement of the piston plate, the lifting rope on the piston plate can drive the lifting plate to move on the limiting, until the rubber pad on the lifting plate butts against the opening of the collecting cylinder, the sampling cylinder is sealed, and meanwhile, the control valve on the communicating pipe can be closed, so that the rubber pad can firmly butt against the collecting cylinder, underground water with other depths is effectively prevented from immersing into the sampling cylinder in the process of moving the sampling cylinder up and down, the depth-fixed sampling is effectively realized, and the sampling effect is better;

2. through the arranged sliding plate, the jacks, the inserted bar, the spring, the supporting rod and the guide wheel, the guide wheel positioned on the supporting rod can play a role of assisting the movement of the hose, so that the descending process of the sampling cylinder is smoother, the holding plate is stretched upwards, the inserted bar can be drawn out of the jacks, the sliding plate can slide in the base, the position of the guide wheel can be flexibly changed, the aim of controlling the descending position of the sampling cylinder is achieved, then the holding plate is loosened, the spring can rebound the inserted bar into the jacks on the sliding plate again, and the aim of limiting the position of the sliding plate is achieved, the structure enables the settlement point of the sampling cylinder to be flexibly adjusted, and the use is very convenient;

3. through draw-in groove, fixture block, solid fixed cylinder and the push rod that sets up, after the sampler barrel descends to suitable position, can promote the push rod in the solid fixed cylinder for fixture block card on the push rod is in the draw-in groove on the rotating tube, makes the sampler barrel can hover in groundwater, conveniently controls the pump barrel and takes a sample, and result of use is better.

Drawings

FIG. 1 is a schematic cross-sectional view of a portable groundwater depth-fixing sampling device suitable for desert areas in example 1;

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;

FIG. 3 is an enlarged view of the structure at B in FIG. 1;

fig. 4 is a schematic structural diagram of a base of the portable groundwater depth-fixing sampling device suitable for desert areas in embodiment 2.

In the figure: the device comprises a base 1, universal wheels 2, a fixed frame 3, an air pump 4, a hose 5, a guide wheel 6, a support rod 7, a slide rod 8, a ring 9, a sampling tube 10, an installation frame 11, a holding plate 12, a spring 13, an inserted rod 14, an insertion hole 15, a sliding plate 16, a piston plate 17, a collecting tube 18, a limiting rod 19, a stop block 20, a lifting plate 21, a rubber pad 22, a lifting rope 23, a rotating tube 24, an adjusting wheel 25, a clamping groove 26, a communicating tube 27, a control valve 28, a fixed tube 29, a clamping block 30, a push rod 31, a ground pile 32, a barb 33, a filter membrane 34 and filter cotton 35.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Example 1

Referring to fig. 1-3, a portable groundwater depthkeeping sampling device suitable for desert area, including base 1, the top outer wall of base 1 is provided with mount 3, and it is provided with rotating tube 24 to rotate on mount 3, the outer wall of rotating tube 24 has wound hose 5, the one end of hose 5 is linked together with rotating tube 24, the other end of hose 5 is provided with sampling mechanism, one side outer wall of rotating tube 24 is provided with regulating wheel 25, and the outer wall of rotating tube 24 is provided with pump bowl 4, be linked together through communicating pipe 27 between pump bowl 4 and the rotating tube 24, the outer wall of communicating pipe 27 is provided with control valve 28, be provided with stop gear on mount 3, be provided with supporting mechanism on the base 1.

The sampling mechanism comprises a sampling cylinder 10, a slide rod 8, a piston plate 17, a collecting cylinder 18 and rubber pads 22, wherein the outer wall of the top of the sampling cylinder 10 is provided with a mounting opening, the other end of a hose 5 is arranged in the mounting opening, the collecting cylinder 18 is fixedly arranged on the outer wall of the bottom of the sampling cylinder 10, the piston plate 17 is slidably arranged in the sampling cylinder 10, the inner wall of the sampling cylinder 10 is provided with a circular ring 9, the slide rod 8 is slidably arranged in the circular ring 9, the bottom end of the slide rod 8 is fixedly connected with the outer wall of the piston plate 17, the outer wall of the collecting cylinder 18 is provided with a limiting rod 19, the bottom end of the limiting rod 19 is fixedly connected with a stop block 20, the outer wall of the limiting rod 19 is slidably connected with a lifting plate 21, the rubber pads 22 are fixedly arranged on the outer wall of the top of the lifting plate 21, the rubber pads 22 are connected with the piston plate, the filter cotton 35 is arranged between the adjacent filter membranes 34, and when groundwater is collected by the collecting cylinder 18, the filter cotton 35 between the filter membranes 34 can filter sand and stones in the groundwater.

The supporting mechanism comprises a sliding plate 16 and a guide wheel 6, a sliding groove is formed in the outer wall of one side of the base 1, the sliding plate 16 is arranged in the sliding groove in a sliding mode, a supporting rod 7 is fixedly connected to the outer wall of the top of the sliding plate 16, the guide wheel 6 is fixedly arranged at one end of the supporting rod 7, and the outer wall of the hose 5 is matched with the guide groove in the guide wheel 6, so that the moving process of the sampling tube 10 is smoother.

The top outer wall of slide 16 opens has equidistance distribution's jack 15, and the top outer wall of base 1 is provided with mounting bracket 11, and the top outer wall of mounting bracket 11 opens and has the fixed orifices, and the inner wall sliding connection of fixed orifices has inserted bar 14, and the top fixedly connected with of inserted bar 14 holds board 12, and holds the bottom fixedly connected with spring 13 of board 12, the bottom of spring 13 and the top outer wall fixed connection of mounting bracket 11, and the outer wall and the jack 15 of inserted bar 14 agree with each other.

Four corners of the outer wall of the bottom of the base 1 are provided with universal wheels 2, so that the device is convenient to move.

The limiting mechanism comprises a fixed cylinder 29, a push rod 31 and a clamping block 30, the fixed cylinder 29 is fixedly arranged on the outer wall of one side of the fixed frame 3, the push rod 31 is slidably arranged in the fixed cylinder 29, the clamping block 30 is fixedly arranged at one end of the push rod 31, clamping grooves 26 which are distributed in an annular mode at equal intervals are formed in the outer wall of the rotating pipe 24, and the clamping block 30 is matched with the clamping grooves 26.

The working principle is as follows: when the sampling device is used, the rotating adjusting wheel 25 can be rotated to drive the rotating pipe 24 to rotate, so that the sampling tube 10 at one end of the hose 5 is continuously lowered until the sampling tube 10 is lowered to the depth required to be sampled, then the suction tube 4 can be controlled, air in the rotating pipe 24 is pumped out through the communicating pipe 27, because the rotating pipe 24 is connected with the sampling tube 10 through the hose 5, air in the sampling tube 10 can be pumped out, at the moment, the piston plate 17 can move upwards in the sampling tube 10, the sliding rod 8 positioned on the piston plate 17 can slide on the circular ring 9, so that the piston plate 17 is ensured not to deviate when moving, groundwater can be pumped into the sampling tube 10 through the collecting tube 18 in the process that the piston plate 17 moves upwards, sand and stones in groundwater can be filtered through the filter cotton 35 positioned between the filter membranes 34, and along with the continuous movement of the piston plate 17, the lifting rope 23 on the piston plate 17 can drive the lifting plate 21 to move on the limiting rod 19, until the rubber pad 22 on the lifting plate 21 butts against the mouth of the collecting cylinder 18, the function of sealing the sampling cylinder 10 is achieved, and meanwhile, the control valve 28 on the communicating pipe 27 can be closed, so that the rubber pad 22 can firmly butts against the collecting cylinder 18, the situation that groundwater with other depths is immersed into the sampling cylinder 10 in the process of up-and-down movement of the sampling cylinder 10 is effectively avoided, fixed-point sampling is effectively achieved, the sampling effect is better, the guide wheel 6 on the support rod 7 can play a role of assisting the movement of the hose 5, so that the descending process of the sampling cylinder 10 is smoother, the holding plate 12 is stretched upwards, the inserted rod 14 can be drawn out from the insertion hole 15, the sliding plate 16 can slide in the base 1, the position of the guide wheel 6 can be flexibly changed, the purpose of controlling the descending position of the sampling cylinder 10 is achieved, then the holding plate 12 is loosened, the spring 13 can rebound the inserted rod, play the purpose of injecing slide 16 position, this structure makes the settlement point of sampler barrel 10 can adjust in a flexible way, and it is very convenient to use, after sampler barrel 10 descends to suitable position, can promote the push rod 31 in the fixed cylinder 29 for in the draw-in groove 26 of the fixture block 30 card on the push rod 31 on the rotating tube 24, make sampler barrel 10 can hover in the groundwater, conveniently control suction cylinder 4 and take a sample, the result of use is better.

Example 2

Referring to fig. 4, the present embodiment is compared with embodiment 1, and further includes that four corners of the outer wall of the top of the base 1 are all opened with a limiting opening, and a ground pile 32 is inserted into the inner wall of the limiting opening.

The outer wall of the ground pile 32 is provided with a plurality of rows of barbs 33 distributed equidistantly.

The working principle is as follows: when the device is used, the ground pile 32 can be inserted into the ground, and the barbs 33 on the ground pile 32 can increase the ground grabbing force of the ground pile 32, so that the device is more stable in the use process.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. A portable groundwater depth-fixing sampling device suitable for desert areas, which comprises a base (1), it is characterized in that the outer wall of the top of the base (1) is provided with a fixed mount (3), a rotating pipe (24) is rotatably arranged on the fixed frame (3), the outer wall of the rotating pipe (24) is wound with a hose (5), one end of the hose (5) is communicated with the rotating pipe (24), the other end of the hose (5) is provided with a sampling mechanism, the outer wall of one side of the rotating pipe (24) is provided with an adjusting wheel (25), and the outer wall of the rotating pipe (24) is provided with an air suction cylinder (4), the air suction cylinder (4) is communicated with the rotating pipe (24) through a communicating pipe (27), the outer wall of the communicating pipe (27) is provided with a control valve (28), the fixing frame (3) is provided with a limiting mechanism, and the base (1) is provided with a supporting mechanism.

2. The portable groundwater depth-setting sampling device suitable for desert areas as claimed in claim 1, wherein the sampling mechanism comprises a sampling cylinder (10), a sliding rod (8), a piston plate (17), a collecting cylinder (18) and a rubber pad (22), the outer wall of the top of the sampling cylinder (10) is provided with a mounting opening, the other end of the hose (5) is arranged in the mounting opening, the collecting cylinder (18) is fixedly arranged on the outer wall of the bottom of the sampling cylinder (10), the piston plate (17) is slidably arranged in the sampling cylinder (10), the inner wall of the sampling cylinder (10) is provided with a ring (9), the sliding rod (8) is slidably arranged in the ring (9), the bottom end of the sliding rod (8) is fixedly connected with the outer wall of the piston plate (17), the outer wall of the collecting cylinder (18) is provided with a limiting rod (19), and the bottom end of the limiting rod (19) is fixedly connected with a stop block (20), the outer wall sliding connection of gag lever post (19) has lifter plate (21), and rubber pad (22) fixed the setting in the top outer wall of lifter plate (21), and connects through lifting rope (23) between rubber pad (22) and piston plate (17), the inner wall of collection tube (18) is provided with filter membrane (34), and the quantity of filter membrane (34) is two, and is adjacent be provided with filter pulp (35) between filter membrane (34).

3. The portable groundwater depth-fixing and sampling device suitable for desert areas as claimed in claim 1, wherein the supporting mechanism comprises a sliding plate (16) and a guide wheel (6), a sliding groove is formed in an outer wall of one side of the base (1), the sliding plate (16) is slidably arranged in the sliding groove, a supporting rod (7) is fixedly connected to an outer wall of the top of the sliding plate (16), the guide wheel (6) is fixedly arranged at one end of the supporting rod (7), and an outer wall of the hose (5) is matched with a guide groove in the guide wheel (6).

4. The portable groundwater depth setting and sampling device suitable for desert areas of claim 3, wherein the top outer wall of the sliding plate (16) is provided with jacks (15) distributed equidistantly, the top outer wall of the base (1) is provided with a mounting frame (11), the top outer wall of the mounting frame (11) is provided with a fixing hole, the inner wall of the fixing hole is connected with an insertion rod (14) in a sliding manner, the top end of the insertion rod (14) is fixedly connected with a holding plate (12), the bottom end of the holding plate (12) is fixedly connected with a spring (13), the bottom end of the spring (13) is fixedly connected with the top outer wall of the mounting frame (11), and the outer wall of the insertion rod (14) is matched with the jacks (15).

5. The portable groundwater depth sampling device suitable for desert areas as claimed in claim 1, wherein universal wheels (2) are arranged at four corners of the outer wall of the bottom of the base (1).

6. The portable groundwater depth-fixing sampling device suitable for desert areas as claimed in claim 1, wherein the limiting mechanism comprises a fixed cylinder (29), a push rod (31) and a clamping block (30), the fixed cylinder (29) is fixedly arranged on the outer wall of one side of the fixed frame (3), the push rod (31) is slidably arranged in the fixed cylinder (29), the clamping block (30) is fixedly arranged at one end of the push rod (31), the outer wall of the rotating pipe (24) is provided with clamping grooves (26) which are distributed annularly at equal intervals, and the clamping block (30) and the clamping groove (26) are matched.

7. The portable groundwater depth-fixing and sampling device suitable for desert areas as claimed in claim 1, wherein the pedestal (1) is provided with limiting openings at four corners of the top outer wall, and ground piles (32) are inserted into the inner walls of the limiting openings.

8. A portable groundwater depth sampling device suitable for desert areas as claimed in claim 7, wherein the outer wall of the ground stake (32) is provided with a plurality of rows of barbs (33) distributed equidistantly.