CN114323755B - Multifunctional sampling device for collecting soil and underground water samples - Google Patents
Multifunctional sampling device for collecting soil and underground water samples Download PDFInfo
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- CN114323755B CN114323755B CN202111611052.9A CN202111611052A CN114323755B CN 114323755 B CN114323755 B CN 114323755B CN 202111611052 A CN202111611052 A CN 202111611052A CN 114323755 B CN114323755 B CN 114323755B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention discloses a multifunctional sampling device for collecting soil and underground water samples, which comprises a device frame, a soil sample collecting assembly, a water sample collecting assembly and a PLC (programmable logic controller), wherein the device frame is provided with a guide pipe; the water sample collecting assembly comprises a sampling water pipe, a peristaltic pump and a collecting bottle, the sampling water pipe is sleeved in the sampling pipe, a suction pipe is arranged on the sampling water pipe, the collecting bottle is clamped on the device frame, one end of the peristaltic pump is connected with the collecting bottle, and the other end of the peristaltic pump is connected with the suction pipe; the PLC is electrically connected with the driving motor and the peristaltic pump; the invention has reasonable structural design, can simultaneously collect soil and underground water samples, simplifies the sampling work and is suitable for large-scale popularization.
Description
Technical Field
The invention relates to the technical field of soil sample collection equipment, in particular to a multifunctional sampling device for collecting soil and underground water samples.
Background
The pollutants generated by artificial activities enter the soil and are accumulated to a certain degree, so that the soil quality is deteriorated, and further, a phenomenon that certain indexes in crops exceed national standards is caused, and the phenomenon is called soil pollution. The way of the pollutants entering the soil is various, pollutants, particularly particles contained in the waste gas are settled to the ground under the action of gravity and enter the soil, a large amount of pollutants are carried in the waste water and enter the soil, and the pollutants in the solid waste directly enter the soil or the percolate thereof enters the soil. The most important of them is the soil pollution caused by sewage irrigation. The use of a large amount of pesticides and chemical fertilizers causes the reduction of the organic matter content of soil and soil hardening, and is also one of the sources of soil pollution. In addition to soil quality reduction and crop yield and quality reduction caused by soil pollution, more serious is that soil has an enrichment effect on pollutants, some pollutants with high toxicity, such as mercury, cadmium and the like are enriched in crop fruits, and poisoning occurs after people or livestock eat the pollutants.
Therefore, the polluted soil and the underground water are treated to reduce the damage caused by pollution, and before the polluted soil and the underground water are treated, the polluted soil and the underground water are sampled to find out the specific conditions of the polluted soil and the underground water, so that a targeted treatment measure can be adopted.
Then, in the prior art, the collection of the soil sample and the underground water sample is separately carried out, so that the sampling difficulty is increased; and the sample difference is great in the sampling process, so that the analysis of the soil and underground water detection results is not facilitated.
Disclosure of Invention
Aiming at the technical problems, the invention provides a multifunctional sampling device for collecting soil and underground water samples.
The technical scheme of the invention is as follows: a multifunctional sampling device for collecting soil and underground water samples comprises a device frame, a soil sample collecting assembly, a water sample collecting assembly and a PLC (programmable logic controller); a guide pipe vertically penetrates through the device frame, and guide sliding grooves are symmetrically formed in the side wall of the guide pipe;
the soil sample collecting assembly comprises a sampling pipe, a clamping component and a driving motor, wherein the sampling pipe comprises an outer pipe and an inner pipe, the outer pipe is movably sleeved in the guide pipe, driving plates are symmetrically arranged on the outer wall of the outer pipe, and the two driving plates respectively penetrate through the two guide sliding chutes and are respectively in sliding clamping connection with the two guide sliding chutes; the inner pipe is movably sleeved inside the outer pipe, the top of the inner pipe and the top of the outer pipe are movably clamped, a limiting pin movably clamped with the inner pipe is movably arranged on the outer pipe, an installation space is reserved between the inner pipe and the outer pipe, and the clamping component is movably arranged inside the inner pipe and used for clamping and fixing a soil sample inside the inner pipe; the two driving motors are respectively arranged in the device frame and positioned on two sides of the guide pipe, driving screw rods are respectively arranged on output shafts of the two driving motors, and the two driving screw rods respectively penetrate through the two driving plates and are respectively in threaded connection with the two driving plates;
the water sample collecting assembly comprises a sampling water pipe, a peristaltic pump and a collecting bottle, wherein the sampling water pipe is movably sleeved in the mounting space, a filter screen is arranged at the position, close to the lower part, of the outer wall of the sampling water pipe, a wedge-shaped clamping table is arranged at the bottom end of the sampling water pipe, the wedge-shaped clamping table is movably clamped in an annular area formed by the lower ends of the inner pipe and the outer pipe, sliding rods are symmetrically arranged at the top end of the sampling water pipe and penetrate through the sampling pipe, the sliding rods are in sliding clamping connection with the top end of the outer portion of the device frame through a connecting frame, a plurality of limiting holes are uniformly distributed in the sliding rods, a straw is arranged on the inner wall of the sampling water pipe, the bottom end of the straw is communicated with the inside of the filter screen, the collecting bottle is movably clamped and connected to the upper end face of the device frame, the output end of the peristaltic pump is communicated with the collecting bottle through a guide pipe, and the input end of the peristaltic pump is communicated with the top end of the straw through a guide pipe;
the PLC controller is respectively and electrically connected with the driving motor and the peristaltic pump.
Furthermore, the clamping component comprises two arc-shaped clamping plates, pushing rods and a driving disc, the two arc-shaped clamping plates are symmetrically arranged in the inner tube and are respectively in sliding clamping connection with the inner wall of the inner tube, the number of the pushing rods is consistent with that of the arc-shaped clamping plates, the two pushing rods are respectively in rotating clamping connection with the inner wall of the inner tube, the top ends of the two pushing rods respectively penetrate through the inner tube and are respectively provided with a small gear, the bottom ends of the two pushing rods are respectively provided with a strip-shaped pushing block, and the two strip-shaped pushing blocks are respectively abutted to one side, far away from the two arc-shaped clamping plates, of the two pushing rods; the driving-disc rotates the joint on the inner tube top, be provided with the fluted disc on the driving-disc, the fluted disc is connected with two little gear engagement respectively, in the use, the rotary driving-disc, it is rotatory to utilize the pinion on the fluted disc drive each catch bar on the driving-disc, it is ejecting with the arc grip block to utilize the bar that corresponds on the catch bar, thereby it is fixed to make each arc grip block carry out the centre gripping to the soil sample of inside collection of inner tube after being close to each other, avoid the inner tube to remove the in-process soil sample and drop.
Furthermore, the inner pipe is formed by splicing two semicircular pipes, the two semicircular pipes are mutually clamped end to end, and the two arc-shaped clamping plates are respectively positioned on the two semicircular pipes; through setting up the inner tube that forms by two semicircle pipe concatenations, be convenient for shift the soil sample of the internal different degree of depth of intraduct.
Furthermore, a plurality of supporting rods are uniformly distributed on the outer wall of the filter screen, and each supporting rod is fixedly connected with the sampling water pipe respectively, so that the filter screen is protected by the supporting rods, deformation of the filter screen under the action of external force extrusion is avoided, and the reliability of water sample collection is improved.
Furthermore, the quantity of the straws is consistent with the corresponding of the support rods, each straw is movably sleeved inside each support rod respectively, the water suction heads are arranged on the side walls of each straw, the openings of the water suction heads face the inside of the filter screen, the water inlet area of the filter screen is ensured by sleeving the straws inside the support rods, and the water suction heads can be prevented from being blocked by impurities in a water sample by arranging the water suction heads with the openings facing the inside of the filter screen, so that the reliability of the device is improved.
Furthermore, a plurality of water suction heads are uniformly distributed on each suction pipe along the height direction of the suction pipe; through set up the several suction head in the straw direction of height, can guarantee that the inside water level of sampling water pipe is in not co-altitude the time, the effective absorption of water sample of suction head.
Furthermore, the lower end face of the wedge-shaped clamping table is provided with the cutting ring cutter, the outer wall of the cutting ring cutter is provided with a plurality of arc-shaped grooves, and resistance of the sampling pipe when the sampling pipe enters soil is favorably reduced by arranging the cutting ring cutter and the arc-shaped grooves, so that sampling efficiency is improved.
Furthermore, a plurality of collecting bottles are arranged, each collecting bottle is respectively connected with the output end of the peristaltic pump through a conduit, electromagnetic control valves are arranged at the joints, and each electromagnetic control valve is respectively electrically connected with the PLC; a plurality of groundwater samples can be collected by utilizing different collecting bottles, so that the reliability of the detection result of the groundwater sample is improved.
Further, sampling pipe and clamping component all have stainless steel material to make, and stainless steel's sampling pipe and clamping component can reduce the pollution that sampling device itself produced soil sample to can reduce the interference of external factor to soil sample testing result.
Furthermore, the lower end face of the device frame is provided with walking wheels, and the walking wheels are arranged, so that the device can be conveniently moved.
The using method of the invention comprises the following steps:
s1, moving the device to a sampling ground, and then respectively connecting the driving motor and the peristaltic pump with an external power supply;
s2, fixing the inner pipe and the outer pipe by using a limit pin; the PLC controller controls the driving motor to rotate in the forward direction, and the driving motor drives the driving screw rod to rotate, so that the sampling pipe and the sampling water pipe move downwards along the guide sliding chute of the guide pipe under the action of the driving plate and finally enter a specified position in soil;
s3, clamping and fixing the soil sample collected in the inner pipe by using a clamping component, fixing the sliding rod and the connecting frame by using a limiting hole on the sliding rod, and controlling the driving motor to rotate reversely by using the PLC, so that the outer pipe of the inner pipe moves upwards to the highest point of the device frame along the guide pipe; finally, removing the limiting pin, taking the inner pipe out of the outer pipe, and removing the soil sample collected in the innermost pipe;
s4, an inner pipe and an outer pipe move upwards, the sampling water pipe stays in soil, underground water enters the inner area of the sampling water pipe through a filter screen on the sampling water pipe, the peristaltic pump is controlled to be started through the PLC, and underground water samples collected by the inner area of the sampling water pipe are pumped to a collecting bottle by the aid of the peristaltic pump and a suction pipe to be collected.
Compared with the prior art, the invention has the beneficial effects that:
firstly, the sampling pipe is reasonable in structural design, and the sampling pipe is movably arranged in the sampling pipe, so that the device can be used for simultaneously collecting soil samples and underground water samples, the difficulty of sampling work is greatly reduced, and the sampling efficiency is improved;
secondly, the sampling pipe structure of the sampling pipe with the unique design enables the outer pipe and the inner pipe to move simultaneously, and enables the inner pipe to separate from the outer pipe and move independently, and when the outer pipe and the inner pipe move simultaneously, the sampling water pipe can be placed into soil simultaneously, so that the construction work of a sampling well in the process of collecting an underground water sample is saved, the sampling work is simplified, and the work efficiency is improved;
thirdly, because the device can simultaneously collect the soil sample and the underground water sample, the device does not need to separately carry a special soil sample collecting device and an underground water poplar collecting device in the field use process, and provides convenient operation conditions for sampling work.
Drawings
FIG. 1 is a longitudinal section of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a schematic view of the connection of the sampling tube of the present invention to the guide tube;
FIG. 4 is a schematic view of the connection of the inner tube to the outer tube of the present invention;
FIG. 5 is an enlarged, fragmentary, schematic view at A of FIG. 1 of the present invention;
FIG. 6 is a schematic view of the connection of the gripping member of the present invention to the inner tube;
FIG. 7 is a schematic view of the distribution of the arcuate clamp plates of the present invention over the inner tube;
FIG. 8 is a schematic structural view of a sampling water pipe of the present invention;
FIG. 9 is an enlarged partial schematic view of the invention at B of FIG. 1;
FIG. 10 is a schematic view of the distribution of the pipette of the present invention on a sampling water pipe;
wherein, 1-a device frame, 10-a guide pipe, 11-a guide chute, 12-a walking wheel, 2-a soil sample collecting component, 20-a sampling pipe, 200-an outer pipe, 201-an inner pipe, 202-a driving plate, 203-a limit pin, 21-a clamping component, 210-an arc clamping plate, 211-a pushing rod, 2110-a pinion, 2111-a strip pushing block, 212-a driving plate, 2120-a fluted disc, 22-a driving motor, 220-a driving screw, 3-a water sample collecting component, 30-a sampling water pipe, 300-a filter screen, 3000-a supporting rod, 301-a wedge clamping table, 302-a sliding rod, 3020-a limit hole, 303-a connecting frame, 304-a cutting ring knife, 3040-an arc groove, 31-a peristaltic pump, 32-collecting bottle, 33-suction pipe and 330-suction head.
Detailed Description
Example 1
As shown in fig. 1 and 2, the multifunctional sampling device for collecting soil and groundwater samples comprises a device frame 1, a soil sample collecting assembly 2, a water sample collecting assembly 3 and a PLC controller; a guide pipe 10 vertically penetrates through the device frame 1, and guide sliding chutes 11 are symmetrically arranged on the side wall of the guide pipe 10;
as shown in fig. 1, 3, 4 and 5, the soil sample collection assembly 2 includes a sampling tube 20, a clamping member 21 and a driving motor 22, the sampling tube 20 includes an outer tube 200 and an inner tube 201, the outer tube 200 is movably sleeved inside the guide tube 10, driving plates 202 are symmetrically arranged on the outer wall of the outer tube 200, and the two driving plates 202 respectively penetrate through the two guide chutes 11 and are respectively slidably clamped with the two guide chutes 11; the inner pipe 201 is movably sleeved inside the outer pipe 200, the tops of the inner pipe 201 and the outer pipe 200 are movably clamped, a limiting pin 203 movably clamped with the inner pipe 201 is movably arranged on the outer pipe 200, an installation space is reserved between the inner pipe 201 and the outer pipe 200, and the clamping member 21 is movably arranged inside the inner pipe 201 and used for clamping and fixing a soil sample inside the inner pipe 201; two driving motors 22 are arranged, the two driving motors 22 are respectively arranged in the device frame 1 and positioned at two sides of the guide pipe 10, driving screw rods 220 are respectively arranged on output shafts of the two driving motors 22, and the two driving screw rods 220 respectively penetrate through the two driving plates 202 and are respectively in threaded connection with the two driving plates 202;
as shown in fig. 1 and 8, the water sample collecting assembly 3 comprises a sampling water pipe 30, a peristaltic pump 31 and a collecting bottle 32, the sampling water pipe 30 is movably sleeved in the installation space, a filter screen 300 is arranged at the lower part of the outer wall of the sampling water pipe 30, a wedge-shaped clamping table 301 is arranged at the bottom end of the sampling water pipe 30, the wedge-shaped clamping table 301 is movably clamped in an annular area formed by the lower ends of the inner pipe 201 and the outer pipe 200, a sliding rod 302 is symmetrically arranged at the top end of the sampling water pipe 30, the sliding rod 302 penetrates through the sampling pipe 20, the sampling device is in sliding clamping connection with the top end of the outer part of the device frame 1 through the connecting frame 303, a plurality of limiting holes 3020 are uniformly distributed on the sliding rod 302, a suction pipe 33 is arranged on the inner wall of the sampling water pipe 30, the bottom end of the suction pipe 33 is communicated with the inner part of the filter screen 300, a collecting bottle 32 is movably clamped on the upper end surface of the device frame 1, the output end of the peristaltic pump 31 is communicated with the collecting bottle 32 through a guide pipe, and the input end of the peristaltic pump 31 is communicated with the top end of the suction pipe 33 through a guide pipe;
the PLC is respectively and electrically connected with the driving motor 22 and the peristaltic pump 31; the PLC controller, the driving motor 22 and the peristaltic pump 31 are all commercially available products.
Example 2
As shown in fig. 1 and 2, the multifunctional sampling device for collecting soil and groundwater samples comprises a device frame 1, a soil sample collecting assembly 2, a water sample collecting assembly 3 and a PLC controller; a guide pipe 10 vertically penetrates through the device frame 1, and guide sliding chutes 11 are symmetrically arranged on the side wall of the guide pipe 10; the lower end surface of the device frame 1 is provided with walking wheels 12, and the walking wheels 12 are arranged, so that the device can be conveniently moved;
as shown in fig. 1, 3, 4, 5, 6 and 7, the soil sample collection assembly 2 includes a sampling tube 20, a clamping member 21 and a driving motor 22, wherein the sampling tube 20 and the clamping member 21 are both made of stainless steel, and the sampling tube 20 and the clamping member 21 made of stainless steel can reduce pollution of the sampling device itself to the soil sample, so as to reduce interference of external factors to the soil sample detection result; the sampling tube 20 comprises an outer tube 200 and an inner tube 201, the outer tube 200 is movably sleeved inside the guide tube 10, the outer wall of the outer tube 200 is symmetrically provided with driving plates 202, and the two driving plates 202 respectively penetrate through the two guide chutes 11 and are respectively in sliding clamping connection with the two guide chutes 11; the inner pipe 201 is movably sleeved inside the outer pipe 200, the tops of the inner pipe 201 and the outer pipe 200 are movably clamped, a limiting pin 203 movably clamped with the inner pipe 201 is movably arranged on the outer pipe 200, an installation space is reserved between the inner pipe 201 and the outer pipe 200, the inner pipe 201 is formed by splicing two semicircular pipes, the two semicircular pipes are clamped end to end, the clamping component 21 comprises two arc-shaped clamping plates 210, a push rod 211 and a driving disc 212, the two arc-shaped clamping plates 210 are arranged, the two arc-shaped clamping plates 210 are symmetrically arranged inside the inner pipe 201 and are respectively clamped with the inner wall of the inner pipe 201 in a sliding mode, and the two arc-shaped clamping plates 210 are respectively located on the two semicircular pipes; by arranging the inner pipe 201 formed by splicing two semicircular pipes, soil samples at different depths in the inner pipe 201 can be transferred conveniently; the number of the pushing rods 211 is the same as that of the arc-shaped clamping plates 210, the two pushing rods 211 are respectively rotationally clamped on the inner wall of the inner tube 201, the top ends of the two pushing rods 211 penetrate through the inner tube 201 respectively and are provided with pinions 2110, the bottom ends of the two pushing rods 211 are provided with strip-shaped pushing blocks 2111, and the two strip-shaped pushing blocks 2111 are respectively abutted to one side, far away from the two arc-shaped clamping plates 210; the driving disc 212 is rotatably clamped at the top end of the inner tube 201, a fluted disc 2120 is arranged on the driving disc 212, the fluted disc 2120 is respectively meshed with the two pinions 2110, when the device is used, the driving disc 212 is rotated, the fluted disc 2120 on the driving disc 212 drives the pinions 2110 on each pushing rod 211 to rotate, and the corresponding strip-shaped pushing blocks 2111 on the pushing rods 211 are used for ejecting the arc-shaped clamping plates 210 out, so that the soil samples collected inside the inner tube 201 are clamped and fixed after the arc-shaped clamping plates 210 are close to each other, and the soil samples are prevented from falling off in the moving process of the inner tube 201; two driving motors 22 are arranged, the two driving motors 22 are respectively arranged in the device frame 1 and are positioned on two sides of the guide pipe 10, driving lead screws 220 are respectively arranged on output shafts of the two driving motors 22, and the two driving lead screws 220 respectively penetrate through the two driving plates 202 and are respectively in threaded connection with the two driving plates 202;
as shown in fig. 1, 8 and 9, the water sample collecting assembly 3 comprises a sampling water pipe 30, a peristaltic pump 31 and a collecting bottle 32, the sampling water pipe 30 is movably sleeved in the installation space, a filter screen 300 is arranged at the lower part of the outer wall of the sampling water pipe 30, a wedge-shaped clamping table 301 is arranged at the bottom end of the sampling water pipe 30, the wedge-shaped clamping table 301 is movably clamped in an annular region formed by the lower ends of the inner pipe 201 and the outer pipe 200, sliding rods 302 are symmetrically arranged at the top end of the sampling water pipe 30, the sliding rods 302 penetrate through the sampling pipe 20, and is slidably clamped with the top end of the outer part of the device frame 1 through the connecting frame 303, a plurality of limiting holes 3020 are uniformly distributed on the sliding rod 302, the cutting ring cutter 304 is arranged on the lower end surface of the wedge-shaped clamping platform 301, a plurality of arc-shaped grooves 3040 are arranged on the outer wall of the cutting ring cutter 304, by arranging the cutting ring cutter 304 and the arc-shaped groove 3040, the resistance of the sampling pipe 20 entering the soil is reduced, so that the sampling efficiency is improved; a suction pipe 33 is arranged on the inner wall of the sampling water pipe 30, the bottom end of the suction pipe 33 is communicated with the inside of the filter screen 300, and a plurality of water suction heads 330 are uniformly distributed on the suction pipe 33 along the height direction; by arranging the plurality of water suction heads 330 in the height direction of the suction pipe 33, the water samples can be effectively sucked by the water suction heads 330 when the water level inside the sampling water pipe 30 is at different heights; the collecting bottle 32 is movably clamped on the upper end surface of the device frame 1, the output end of the peristaltic pump 31 is communicated with the collecting bottle 32 through a conduit, and the input end of the peristaltic pump 31 is communicated with the top end of the suction pipe 33 through a conduit;
the PLC is respectively and electrically connected with the driving motor 22 and the peristaltic pump 31; the PLC controller, the driving motor 22 and the peristaltic pump 31 are all commercially available products.
Example 3
As shown in fig. 1 and 2, the multifunctional sampling device for collecting soil and groundwater samples comprises a device frame 1, a soil sample collecting assembly 2, a water sample collecting assembly 3 and a PLC controller; a guide pipe 10 vertically penetrates through the device frame 1, and guide sliding chutes 11 are symmetrically arranged on the side wall of the guide pipe 10; the lower end surface of the device frame 1 is provided with walking wheels 12, and the walking wheels 12 are arranged, so that the device can be conveniently moved;
as shown in fig. 1, 3, 4, 5, 6 and 7, the soil sample collecting assembly 2 includes a sampling tube 20, a clamping member 21 and a driving motor 22, the sampling tube 20 and the clamping member 21 are made of stainless steel, and the sampling tube 20 and the clamping member 21 made of stainless steel can reduce pollution of the sampling device itself to the soil sample, so that interference of external factors to the soil sample detection result can be reduced; the sampling tube 20 comprises an outer tube 200 and an inner tube 201, the outer tube 200 is movably sleeved inside the guide tube 10, the outer wall of the outer tube 200 is symmetrically provided with driving plates 202, and the two driving plates 202 respectively penetrate through the two guide chutes 11 and are respectively in sliding clamping connection with the two guide chutes 11; the inner pipe 201 is movably sleeved inside the outer pipe 200, the tops of the inner pipe 201 and the outer pipe 200 are movably clamped, a limiting pin 203 movably clamped with the inner pipe 201 is movably arranged on the outer pipe 200, an installation space is reserved between the inner pipe 201 and the outer pipe 200, the inner pipe 201 is formed by splicing two semicircular pipes, the two semicircular pipes are clamped end to end, the clamping component 21 comprises two arc-shaped clamping plates 210, a push rod 211 and a driving disc 212, the two arc-shaped clamping plates 210 are arranged, the two arc-shaped clamping plates 210 are symmetrically arranged inside the inner pipe 201 and are respectively clamped with the inner wall of the inner pipe 201 in a sliding mode, and the two arc-shaped clamping plates 210 are respectively located on the two semicircular pipes; by arranging the inner pipe 201 formed by splicing two semicircular pipes, soil samples at different depths in the inner pipe 201 can be transferred conveniently; the number of the pushing rods 211 is the same as that of the arc-shaped clamping plates 210, the two pushing rods 211 are respectively rotationally clamped on the inner wall of the inner tube 201, the top ends of the two pushing rods 211 penetrate through the inner tube 201 respectively and are provided with pinions 2110, the bottom ends of the two pushing rods 211 are provided with strip-shaped pushing blocks 2111, and the two strip-shaped pushing blocks 2111 are respectively abutted to one side, far away from the two arc-shaped clamping plates 210; the driving disc 212 is rotatably clamped at the top end of the inner tube 201, a fluted disc 2120 is arranged on the driving disc 212, the fluted disc 2120 is respectively meshed with the two pinions 2110, when the device is used, the driving disc 212 is rotated, the fluted disc 2120 on the driving disc 212 drives the pinions 2110 on each pushing rod 211 to rotate, and the corresponding strip-shaped pushing blocks 2111 on the pushing rods 211 are used for ejecting the arc-shaped clamping plates 210 out, so that the soil samples collected inside the inner tube 201 are clamped and fixed after the arc-shaped clamping plates 210 are close to each other, and the soil samples are prevented from falling off in the moving process of the inner tube 201; two driving motors 22 are arranged, the two driving motors 22 are respectively arranged in the device frame 1 and positioned at two sides of the guide pipe 10, driving screw rods 220 are respectively arranged on output shafts of the two driving motors 22, and the two driving screw rods 220 respectively penetrate through the two driving plates 202 and are respectively in threaded connection with the two driving plates 202;
as shown in fig. 1, 8, 9 and 10, the water sample collecting assembly 3 comprises a sampling water pipe 30, a peristaltic pump 31 and a collecting bottle 32, the sampling water pipe 30 is movably sleeved in the installation space, a filter screen 300 is arranged at a position close to the lower part of the outer wall of the sampling water pipe 30, a wedge-shaped clamping table 301 is arranged at the bottom end of the sampling water pipe 30, the wedge-shaped clamping table 301 is movably clamped in an annular region formed by the lower ends of the inner pipe 201 and the outer pipe 200, a sliding rod 302 is symmetrically arranged at the top end of the sampling water pipe 30, the sliding rod 302 penetrates through the sampling pipe 20, and is slidably clamped with the top end of the outer part of the device frame 1 through the connecting frame 303, a plurality of limiting holes 3020 are uniformly distributed on the sliding rod 302, the cutting ring cutter 304 is arranged on the lower end surface of the wedge-shaped clamping platform 301, a plurality of arc-shaped grooves 3040 are arranged on the outer wall of the cutting ring cutter 304, by arranging the cutting ring cutter 304 and the arc-shaped groove 3040, the resistance of the sampling pipe 20 entering the soil is reduced, so that the sampling efficiency is improved; 6 supporting rods 3000 are uniformly distributed on the outer wall of the filter screen 300, each supporting rod 3000 is fixedly connected with the sampling water pipe 30, the filter screen 300 is protected by the supporting rods 3000, deformation of the filter screen 300 under the action of external force extrusion is avoided, and therefore the reliability of water sample collection is improved; suction pipes 33 are arranged on the inner wall of the sampling water pipe 30, the bottom ends of the suction pipes 33 are communicated with the interior of the filter screen 300, the number of the suction pipes 33 is consistent with that of the support rods 3000, each suction pipe 33 is movably sleeved inside each support rod 3000, the side wall of each suction pipe 33 is provided with a water suction head 330, the opening of each water suction head 330 faces the interior of the filter screen 300, the water inlet area of the filter screen 300 is ensured by sleeving the suction pipes 33 inside the support rods 3000, and the water suction heads 330 with the openings facing the interior of the filter screen 300 are arranged, so that the water suction heads 330 can be prevented from being blocked by impurities in a water sample, and the reliability of the device is improved; a plurality of water suction heads 330 are uniformly distributed on each suction pipe 33 along the height direction; by arranging the plurality of water suction heads 330 in the height direction of the suction pipe 33, the water samples can be effectively sucked by the water suction heads 330 when the water level inside the sampling water pipe 30 is at different heights; 4 collecting bottles 32 are arranged, each collecting bottle 32 is connected with the output end of the peristaltic pump 31 through a conduit, electromagnetic control valves are arranged at the joints, and different collecting bottles 32 can be used for collecting a plurality of underground water samples, so that the reliability of the detection result of the underground water samples is improved; the output end of the peristaltic pump 31 is communicated with the collecting bottle 32 through a conduit, and the input end of the peristaltic pump 31 is communicated with the top end of the suction pipe 33 through a conduit;
the PLC is respectively and electrically connected with the driving motor 22, the peristaltic pump 31 and the electromagnetic control valve; the PLC controller, the driving motor 22, the peristaltic pump 31 and the electromagnetic control valve are all commercially available products.
Claims (9)
1. A multifunctional sampling device for collecting soil and underground water samples is characterized by comprising a device frame (1), a soil sample collecting assembly (2), a water sample collecting assembly (3) and a PLC (programmable logic controller); a guide pipe (10) vertically penetrates through the device frame (1), and guide sliding grooves (11) are symmetrically formed in the side wall of the guide pipe (10);
the soil sample collecting assembly (2) comprises a sampling pipe (20), a clamping component (21) and a driving motor (22), wherein the sampling pipe (20) comprises an outer pipe (200) and an inner pipe (201), the outer pipe (200) is movably sleeved inside the guide pipe (10), driving plates (202) are symmetrically arranged on the outer wall of the outer pipe (200), and the two driving plates (202) respectively penetrate through the two guide sliding chutes (11) and are respectively in sliding clamping connection with the two guide sliding chutes (11); the inner pipe (201) is movably sleeved inside the outer pipe (200), the tops of the inner pipe (201) and the outer pipe (200) are movably clamped, a limiting pin (203) movably clamped with the inner pipe (201) is movably arranged on the outer pipe (200), an installation space is reserved between the inner pipe (201) and the outer pipe (200), and the clamping component (21) is movably arranged inside the inner pipe (201) and used for clamping and fixing a soil sample inside the inner pipe (201); the two driving motors (22) are arranged, the two driving motors (22) are respectively arranged in the device frame (1) and are positioned on two sides of the guide pipe (10), the output shafts of the two driving motors (22) are respectively provided with a driving lead screw (220), and the two driving lead screws (220) respectively penetrate through the two driving plates (202) and are respectively in threaded connection with the two driving plates (202);
the water sample collecting assembly (3) comprises a sampling water pipe (30), a peristaltic pump (31) and a collecting bottle (32), wherein the sampling water pipe (30) is movably sleeved in an installation space, a filter screen (300) is arranged at the lower part of the outer wall of the sampling water pipe (30), a wedge-shaped clamping table (301) is arranged at the bottom end of the sampling water pipe (30), the wedge-shaped clamping table (301) is movably clamped in an annular area formed by the lower ends of an inner pipe (201) and an outer pipe (200), sliding rods (302) are symmetrically arranged at the top end of the sampling water pipe (30), the sliding rods (302) penetrate through the sampling pipe (20) and are in sliding clamping connection with the outer top end of the device frame (1) through a connecting frame (303), a plurality of limiting holes (3020) are uniformly distributed on the sliding rods (302), a suction pipe (33) is arranged on the inner wall of the sampling water pipe (30), and the bottom end of the suction pipe (33) is communicated with the interior of the filter screen (300), the collecting bottle (32) is movably clamped on the upper end face of the device frame (1), the output end of the peristaltic pump (31) is communicated with the collecting bottle (32) through a guide pipe, and the input end of the peristaltic pump (31) is communicated with the top end of the suction pipe (33) through a guide pipe;
the PLC is respectively and electrically connected with the driving motor (22) and the peristaltic pump (31).
2. The multifunctional sampling device for soil and groundwater sample collection according to claim 1, characterized in that the clamping component (21) comprises an arc-shaped clamping plate (210), a pushing rod (211) and a driving disc (212), two arc-shaped clamping plates (210) are arranged, the two arc-shaped clamping plates (210) are symmetrically arranged in the inner pipe (201), and are respectively connected with the inner wall of the inner tube (201) in a sliding and clamping way, the number of the push rods (211) is correspondingly consistent with that of the arc-shaped clamping plate (210), the two push rods (211) are respectively connected with the inner wall of the inner tube (201) in a rotating and clamping way, the top ends of the two push rods (211) respectively penetrate through the inner tube (201), the two pushing rods (211) are provided with a pinion (2110), the bottom ends of the two pushing rods (211) are provided with strip-shaped pushing blocks (2111), and the two strip-shaped pushing blocks (2111) are respectively abutted against one side, far away from the two arc-shaped clamping plates (210); the driving disc (212) is rotatably clamped at the top end of the inner tube (201), a fluted disc (2120) is arranged on the driving disc (212), and the fluted disc (2120) is respectively meshed and connected with the two pinions (2110).
3. The multifunctional sampling device for collecting soil and groundwater samples according to claim 2, wherein the inner pipe (201) is formed by splicing two semicircular pipes, the two semicircular pipes are clamped with each other end to end, and the two arc-shaped clamping plates (210) are respectively positioned on the two semicircular pipes.
4. The multifunctional sampling device for soil and groundwater sample collection according to claim 1, wherein a plurality of support rods (3000) are uniformly distributed on the outer wall of the filter screen (300), and each support rod (3000) is fixedly connected with a sampling water pipe (30).
5. The multifunctional sampling device for soil and groundwater sample collection according to claim 4, wherein the number of the suction pipes (33) is consistent with that of the support rods (3000), each suction pipe (33) is movably sleeved inside each support rod (3000), the side wall of each suction pipe (33) is provided with a suction head (330), and the opening of each suction head (330) faces the inside of the filter screen (300).
6. A multifunctional sampling device for soil and groundwater sampling according to claim 5, characterized in that a plurality of suction heads (330) are evenly distributed on each suction pipe (33) along its height direction.
7. The multifunctional sampling device for soil and groundwater sample collection according to claim 1, wherein the lower end face of the wedge-shaped clamping table (301) is provided with a cutting ring cutter (304), and the outer walls of the cutting ring cutters (304) are provided with a plurality of arc-shaped grooves (3040).
8. A multifunctional sampling device for soil and groundwater sample collection according to claim 1, characterised in that the sampling tube (20) and the clamping member (21) are made of stainless steel material.
9. The multifunctional sampling device for soil and groundwater sample collection according to claim 1, wherein a walking wheel (12) is arranged on the lower end face of the device frame (1).
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| JP2023097315A (en) | 2023-07-07 |
| JP7119255B1 (en) | 2022-08-17 |
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