CN116104491B - Sampler for underground water layered collection - Google Patents
Sampler for underground water layered collection Download PDFInfo
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- CN116104491B CN116104491B CN202211739206.7A CN202211739206A CN116104491B CN 116104491 B CN116104491 B CN 116104491B CN 202211739206 A CN202211739206 A CN 202211739206A CN 116104491 B CN116104491 B CN 116104491B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 242
- 238000005070 sampling Methods 0.000 claims abstract description 147
- 230000007246 mechanism Effects 0.000 claims abstract description 34
- 230000005540 biological transmission Effects 0.000 claims abstract description 24
- 238000007789 sealing Methods 0.000 claims abstract description 11
- 230000006978 adaptation Effects 0.000 claims description 2
- 239000002352 surface water Substances 0.000 claims 2
- 238000000926 separation method Methods 0.000 claims 1
- 239000003673 groundwater Substances 0.000 abstract description 16
- 238000000034 method Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 6
- 239000011435 rock Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003895 groundwater pollution Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000004071 biological effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
- E21B49/08—Obtaining fluid samples or testing fluids, in boreholes or wells
- E21B49/081—Obtaining fluid samples or testing fluids, in boreholes or wells with down-hole means for trapping a fluid sample
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/04—Electric drives
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/28—Enlarging drilled holes, e.g. by counterboring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B47/00—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps
- F04B47/06—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps having motor-pump units situated at great depth
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- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Sampling And Sample Adjustment (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention discloses a sampler for underground water layered collection, which comprises a cable guiding mechanism and a sampling rod, wherein the sampling rod comprises a sampling shell and a cutting head, a plurality of water sampling cavities are axially arranged in the sampling shell along the self-body, a sealing driving cavity is arranged between two adjacent water sampling cavities, and a piston sampling mechanism is arranged in the water sampling cavities; the piston sampling mechanism comprises a threaded shaft and a piston disc, the threaded shaft is rotationally connected with a sampling shell, the piston disc is sleeved on the threaded shaft in a threaded manner, the piston disc is in sliding connection with the sampling shell, the outer wall of the sampling shell is connected with a plurality of water sampling pipes, the number of the water sampling pipes is equal to that of the water sampling cavities and corresponds to the water sampling pipes one to one, the water sampling pipes are communicated with the water sampling cavities, an electromagnetic transmission mechanism is arranged in the sealing driving cavity, and the electromagnetic transmission mechanism is used for transmitting the threaded shafts at two ends of the connection. The sampling rod can widen the sampling range in the process of lowering the sampling rod, ensure the sampling effect, and simultaneously collect groundwater of different depths in a layered manner without the need of reciprocating water discharge collection, thereby greatly improving the collection efficiency.
Description
Technical Field
The invention relates to the technical field of underground water sampling, in particular to a sampler for underground water layered acquisition.
Background
Groundwater is a water stored in stratum gaps below a gas-covered zone, including rock pores, cracks and karst cave, and is an important component of water resources, however, in recent years, under the action of various pollution sources, shallow groundwater in China is seriously polluted and has high pollution speed, and the groundwater pollution mainly refers to the phenomenon that the chemical components, physical properties and biological properties of the groundwater are changed to reduce the quality due to human activities, and because the stratum below the ground surface is complex, the groundwater flows extremely slowly, so the groundwater pollution has the characteristics of slow process, difficult discovery and difficult treatment. The existing automatic underground water sampler is characterized in that a sampling pipe is usually placed in a nest type monitoring well to take water, in the use process, the sampling pipe cannot be subjected to layered sampling, after the underground water is collected at a certain depth, the collected water needs to be taken out, and then the underground water needs to be collected at other depths, so that water is required to be taken out for multiple times for collection at different depths, the collection efficiency is affected, meanwhile, the well hole is small in the collection process, and the collection effect is affected.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a sampler for underground water layered collection, which can widen the sampling range in the process of lowering a sampling rod, ensure the sampling effect, collect underground water with different depths in a layered manner, does not need to collect the underground water by reciprocating water, and greatly improves the collection efficiency.
The aim of the invention is realized by the following technical scheme: the sampler for underground water layered collection comprises a cable guiding mechanism and a sampling rod, wherein the sampling rod comprises a sampling shell and a cutting head, the cutting head is installed at one end of the sampling shell, the other end of the sampling shell is connected with the cable guiding mechanism, a plurality of water sampling cavities are axially arranged in the sampling shell along the self-body, a sealing driving cavity is arranged between two adjacent water sampling cavities, and a piston sampling mechanism is arranged in each water sampling cavity;
the piston sampling mechanism comprises a threaded shaft and a piston disc, the threaded shaft is rotationally connected with the sampling shell, the piston disc is in threaded sleeve on the threaded shaft, the piston disc is in sliding connection with the sampling shell, the outer wall of the sampling shell is connected with a plurality of water sampling pipes, the number of the water sampling pipes is equal to that of the water sampling cavities and corresponds to each other one by one, the water sampling pipes are communicated with the water sampling cavities, an electromagnetic transmission mechanism is arranged in the sealing driving cavity and used for transmitting the threaded shaft at two ends, a double-output-shaft motor is arranged in the sampling shell and is positioned between the water sampling cavity and the cutting head, the threaded shaft closest to the cutting head is in transmission connection with an output shaft of the double-output-shaft motor, and the other output shaft of the double-output-shaft motor is in transmission connection with the cutting head.
The underground water sampling device has the advantages that the sampling rod widens the sampling range through the cutting head in the submergence process, the underground water collection amount is prevented from being influenced by rock strata, after the underground water is submergence to the designated depth, the double-output-shaft motor drives the threaded shaft connected with the sampling rod to rotate, so that the piston disc on the threaded shaft moves along the axial direction of the threaded shaft, the underground water is extracted in the water sampling cavity, after the underground water is collected in the water sampling cavity, the sampling rod is moved to the other collection depth, the next threaded shaft is connected through the electromagnetic transmission mechanism, so that the threaded shaft in the next water sampling cavity rotates, the piston disc on the threaded shaft moves to collect the underground water, the underground water collection of different depths is repeated, the underground water collection of different depths can be collected in a layered mode, the underground water collection of different depths does not need to be carried out in a reciprocating mode, and the collection efficiency is greatly improved.
In some embodiments, the piston disc comprises a sliding outer disc and a threaded inner disc, the threaded inner disc is arranged on the inner ring of the sliding outer disc, the threaded inner disc is sleeved on the threaded shaft in a threaded manner, and the outer ring of the threaded inner disc is in friction contact with the inner ring of the sliding outer disc.
In some embodiments, a sliding rail is fixed on the inner wall of the water sampling cavity, a sliding groove is formed in the outer wall of the sliding outer disc, and the sliding rail is matched with the sliding groove in a sliding manner.
In some embodiments, the electromagnetic transmission mechanism comprises a first friction disc, a second friction disc and an electromagnet, the first friction disc and the second friction disc are oppositely arranged, the first friction disc and the second friction disc are respectively sleeved on two adjacent threaded shafts, the first friction disc is fixedly connected with the threaded shafts, the second friction disc is slidably sleeved on the threaded shafts, the outer ring of the electromagnet is fixedly connected with the sampling shell, the second friction disc is positioned between the first friction disc and the electromagnet, a magnetic disc is arranged on the end face, close to the electromagnet, of the second friction disc, and the magnetic poles of the magnetic disc are identical to the electrified magnetic poles of the electromagnet.
In some embodiments, the inner ring of the second friction disk is provided with spline teeth, a spline groove is formed in a threaded shaft for installing the second friction disk, the spline teeth of the second friction disk are matched with the spline groove of the threaded shaft, a reset spring is arranged in the spline groove, two ends of the reset spring are respectively connected with the threaded shaft and the second friction disk, and when the reset spring is in a normal state, the second friction disk is separated from the first friction disk.
In some embodiments, the water collecting pipe comprises a unidirectional water inlet pipe and a unidirectional water outlet pipe, a first water inlet hole, a second water inlet hole and a third water inlet hole are sequentially formed in the unidirectional water inlet pipe along a direction away from the sampling shell, the diameters of the first water inlet hole, the second water inlet hole and the third water inlet hole are sequentially reduced, a conical water inlet valve block is arranged in the first water inlet hole, a first spring is arranged in the second water inlet hole, one end of the first spring is connected with a step formed by the second water inlet hole and the third water inlet hole, the other end of the first spring is connected with the conical water inlet valve block, and when the first spring is in a normal state, the small diameter end of the conical water inlet valve block is adapted to the second water inlet hole.
In some embodiments, the unidirectional water outlet pipe is along keeping away from first apopore, second apopore and third apopore have been seted up in proper order to the direction of sampling casing, the diameter of first apopore and third apopore is all less than the diameter of second apopore, be provided with toper water outlet valve piece and second spring in the second apopore, the one end of second spring is connected the major diameter end of toper water outlet valve piece, the other end is connected on the step that second apopore and third apopore formed, when the second spring is in normal state, the minor diameter end adaptation of toper water outlet valve piece is in the first apopore.
In some embodiments, a driving shaft is rotatably arranged in the middle of the cutting head, one end of the driving shaft is in transmission connection with an output shaft of the double-output-shaft motor, a driving bevel gear is sleeved on the driving shaft, a plurality of driven shafts are arranged in the cutting head around the driving shaft, the driven shafts are rotatably connected to the cutting head, a driven bevel gear is sleeved on the driven shafts, the driven bevel gear is meshed with the driving bevel gear, and the driven shafts penetrate through the cutting head and are fixedly sleeved with cutting blades.
In some embodiments, a seal ring is disposed between the threaded shaft and the sampling housing.
In some embodiments, the cable guide mechanism includes a movable base and a spool mounted on top of the movable base, around which a cable is wound, the cable being connected with the sampling housing.
The beneficial effects of the invention are as follows:
in the submergence process of the sampling rod, the sampling range is widened through the cutting head, the underground water collection amount is prevented from being influenced by rock stratum, after the underground water is submergence to a designated depth, the double-output-shaft motor drives the threaded shaft connected with the double-output-shaft motor to rotate, so that the piston disc on the threaded shaft moves along the axial direction of the threaded shaft, underground water is extracted into the water sampling cavity, after the water sampling cavity is fully filled with the underground water, the sampling rod is moved to another collection depth, the next threaded shaft is connected through the electromagnetic transmission mechanism, so that the threaded shaft in the next water sampling cavity rotates, the piston disc on the threaded shaft moves to collect underground water, underground water collection of different depths is repeatedly realized, underground water of different depths can be collected in a layered mode, reciprocating water discharge collection is not needed, and collection efficiency is greatly improved.
Drawings
FIG. 1 is a schematic view showing the internal structure of a sampling rod in a sampler for groundwater layered collection according to the present invention;
FIG. 2 is a schematic diagram of the structure of a piston disc in a sampler for groundwater layered acquisition according to the present invention;
FIG. 3 is an enlarged view of FIG. 1 at A;
FIG. 4 is an enlarged view of FIG. 1 at B;
FIG. 5 is an enlarged view of FIG. 1 at C;
FIG. 6 is a schematic diagram of a sampler for groundwater layered acquisition according to the present invention;
in the figure, the sample rod is 1-, the sample shell is 2-, the cutting head is 3-, the water sampling cavity is 4-, the 5-sealed driving cavity, the 6-threaded shaft, the 7-piston disc, the 8-water sampling pipe, the 9-double-outlet shaft motor, the 10-sliding outer disc, the 11-threaded inner disc, the 12-sliding rail, the 13-sliding groove, the 14-first friction disc, the 15-second friction disc, the 16-electromagnet, the 17-magnetic disc, the 18-spline groove, the 19-reset spring, the 20-one-way water inlet pipe, the 21-one-way water outlet pipe, the 22-first water inlet hole, the 23-second water inlet hole, the 24-third water inlet hole, the 25-conical water inlet valve block, the 26-first spring, the 27-first water outlet hole, the 28-second water outlet hole, the 29-third water outlet hole, the 30-conical water outlet valve block, the 31-second spring, the 32-driving shaft, the 33-driving bevel gear, the 34-driven bevel gear, the 35-driven bevel gear, the 36-cutting blade, the 37-moving base, the 38-wire winding disc and the 39-cable.
Detailed Description
The technical solution of the present invention will be described in further detail with reference to the accompanying drawings, but the scope of the present invention is not limited to the following description.
As shown in fig. 1 to 6, a sampler for underground water layered collection comprises a cable guiding mechanism and a sampling rod 1, wherein the sampling rod 1 comprises a sampling shell 2 and a cutting head 3, the cutting head 3 is arranged at one end of the sampling shell 2, the other end of the sampling shell 2 is connected with the cable guiding mechanism, a plurality of water sampling cavities 4 are axially arranged in the sampling shell 2 along the self-body, a sealing driving cavity 5 is arranged between two adjacent water sampling cavities 4, a piston sampling mechanism is arranged in the water sampling cavities 4, and underground water with different depths is respectively collected through the plurality of water sampling cavities 4, so that the underground water with different depths is mutually independent and collected, layered underground water collection is realized, underground water with multiple depths can be collected at one time, underground water with one position or depth can be prevented from being collected at one time, and collection efficiency is greatly improved; the piston sampling mechanism comprises a threaded shaft 6 and a piston disc 7, the threaded shaft 6 is rotationally connected with a sampling shell 2, the piston disc 7 is in threaded sleeve connection with the threaded shaft 6, the piston disc 7 is in sliding connection with the sampling shell 2, the outer wall of the sampling shell 2 is connected with a plurality of water sampling pipes 8, the number of the water sampling pipes 8 is equal to that of the water sampling pipes 4, the water sampling pipes 8 are in one-to-one correspondence with each other, an electromagnetic transmission mechanism is arranged in a sealed driving cavity 5 and is used for transmitting the threaded shaft 6 connected with two ends, a double-output-shaft motor 9 is arranged in the sampling shell 2, the double-output-shaft motor 9 is located between the water sampling pipes 4 and a cutting head 3, the threaded shaft 6 closest to the cutting head 3 is transmitted and connected with an output shaft of the double-output-shaft motor 9, the other output shaft of the double-output-shaft motor 9 is connected with the cutting head 3 in a transmission mode, when the multiple water sampling pipes 4 are sequentially put into a use state from bottom to top, the water sampling pipes 4 closest to the double-output-shaft motor 9 are firstly used for underground water collection, and then the rest water sampling pipes 4 are sequentially used upwards for underground water collection, and the concrete work is as follows: in the process of submergence, the sampling rod 1 widens the sampling range through the cutting head 3, the underground water collection amount is prevented from being influenced by rock stratum, after the specified depth is reached, the double-output-shaft motor 9 drives the threaded shaft 6 connected with the double-output-shaft motor to rotate, as the sliding rail 12 is fixed on the inner wall of the threaded shaft 4, the sliding chute 13 is arranged on the outer wall of the sliding outer disc 10, the sliding rail 12 is in sliding fit with the sliding chute 13, the rotation freedom degree of the piston disc 7 is limited, the threaded shaft 6 and the piston disc 7 form a nut screw mechanism, the piston disc 7 on the threaded shaft 6 moves along the axial direction of the threaded shaft 6, the piston disc 7 and the threaded shaft 4 form a piston mechanism, the underground water is extracted in the threaded shaft 4 through the movement of the piston disc 7, after the underground water is collected in the threaded shaft 4 closest to the double-output-shaft motor 9, the sampling rod is moved to the other collection depth, and the electromagnetic transmission mechanism is connected with the next threaded shaft 6, so that the threaded shaft 6 in the threaded shaft 6 rotates, the piston disc 7 on the threaded shaft 6 moves to collect the underground water, and the underground water is repeatedly collected in different depths, and the different depths can be collected, and the underground water collection depths are greatly and the underground water can be collected repeatedly.
Further, as shown in fig. 2, the piston disc 7 includes a sliding outer disc 10 and a threaded inner disc 11, the threaded inner disc 11 is disposed on the inner ring of the sliding outer disc 10, the threaded inner disc 11 is sleeved on the threaded shaft 6, the outer ring of the threaded inner disc 11 is in friction contact with the inner ring of the sliding outer disc 10, the friction force between the threaded inner disc 11 and the sliding outer disc 10 is greater than the rotation force of the threaded inner disc 11, when the threaded shaft 6 rotates, the friction force generated by the threaded inner disc 11 cannot overcome the friction force between the threaded inner disc 11 and the sliding outer disc 10, so that the threaded inner disc 11 translates along the axial direction of the threaded shaft 6, the threaded inner disc 11 drives the sliding outer disc 10 to move together, when the sliding outer disc 10 abuts against the end of the water sampling cavity 4, at this time, the movement of the sliding outer disc 10 is limited, at this time, the rotation force generated by the threaded shaft 6 on the threaded inner disc 11 is increased, thereby overcoming the friction force between the sliding outer disc 10 and the threaded inner disc 11, and the sliding outer disc 10, so that when the piston disc 7 moves to the end of the water sampling cavity 4, the piston disc 7 does not interfere with the threaded shaft 7, and the piston disc 4 can continue to move in an idle running state, and the normal motion is guaranteed.
In some embodiments, as shown in fig. 1 and 5, the electromagnetic transmission mechanism comprises a first friction disk 14, a second friction disk 15 and an electromagnet 16, the first friction disk 14 and the second friction disk 15 are oppositely arranged, the first friction disk 14 and the second friction disk 15 are respectively sleeved on two adjacent threaded shafts 6, the first friction disk 14 is fixedly connected with the threaded shafts 6, the second friction disk 15 is slidably sleeved on the threaded shafts 6, the outer ring of the electromagnet 16 is fixedly connected with the sampling shell 2, the second friction disk 15 is positioned between the first friction disk 14 and the electromagnet 16, the end face, close to the electromagnet 16, of the second friction disk 15 is provided with a magnetic disk 17, the magnetic pole of the magnetic disk 17 is identical with the electrified magnetic pole of the electromagnet 16, when power is required to be transmitted to the piston sampling mechanism in the next water sampling cavity 4, the corresponding electromagnet 16 is electrified to repel the magnetic disk 17, so that the magnetic disk 17 drives the second friction disk 15 to move close to the first friction disk 14, so that the second friction disk 15 is contacted with the first friction disk 14 to form a friction transmission plane, thereby connecting the two threaded shafts 6 together in a transmission way, so that power is transmitted, the inner ring of the second friction disk 15 is provided with spline teeth, the threaded shaft 6 provided with the second friction disk 15 is provided with spline grooves 18, the spline teeth of the second friction disk 15 are matched with the spline grooves 18 of the threaded shaft 6, return springs 19 are arranged in the spline grooves 18, the two ends of each return spring 19 are respectively connected with the threaded shaft 6 and the second friction disk 15, when the return springs 19 are in a normal state, the second friction disk 15 is separated from the first friction disk 14, when the electromagnetic transmission mechanism needs to be disconnected, the electromagnet 16 is powered off, the second friction disk 15 is restored to the original position under the action force of the return springs 19, so as to be separated from the first friction disk 14, thereby disconnecting the power transmission between the two threaded shafts 6, preferably, a sealing ring is arranged between the threaded shaft 6 and the sampling shell 2 to seal the sealing driving cavity 5, so that groundwater in the water sampling cavity 4 is prevented from entering the sealing driving cavity 5.
In some embodiments, as shown in fig. 1, 3 and 4, the water collecting pipe 8 comprises a unidirectional water inlet pipe 20 and a unidirectional water outlet pipe 21, the unidirectional water inlet pipe 20 is sequentially provided with a first water inlet hole 22, a second water inlet hole 23 and a third water inlet hole 24 along the direction far away from the sampling shell 2, the diameters of the first water inlet hole 22, the second water inlet hole 23 and the third water inlet hole 24 are sequentially reduced, a conical water inlet valve block 25 is arranged in the first water inlet hole 22, a first spring 26 is arranged in the second water inlet hole 23, one end of the first spring 26 is connected with a step formed by the second water inlet hole 23 and the third water inlet hole 24, the other end of the first spring 26 is connected with a conical water inlet valve block 25, when the first spring 26 is in a normal state, the small diameter end of the conical water block 25 is adapted in the second water inlet hole 23, when groundwater is required to be collected, a piston disc 7 in the water collecting cavity 4 is close to one end of the water collecting pipe 8 and then moves towards the other end of the water collecting cavity 4, the water inlet valve block 4 is lowered, the water inlet valve block 4 is made to form a step between the first water inlet valve block 23 and the water collecting block 25 and the water collecting cavity 4 in an idle state, and the water inlet valve block is made to be in a state of the water collecting pressure of the water collecting cavity 4 is made to be in a state of the water inlet valve 25 is in a state of the water collecting state of the water inlet valve is in which is in a state of a small diameter, and the water is in a state of the water inlet valve is in a water is in a state of a water flowing state of the water is in a water;
further, as shown in fig. 4, the unidirectional water outlet pipe 21 is sequentially provided with a first water outlet hole 27, a second water outlet hole 28 and a third water outlet hole 29 along the direction far away from the sampling shell 2, the diameters of the first water outlet hole 27 and the third water outlet hole 29 are smaller than those of the second water outlet hole 28, a conical water outlet valve block 30 and a second spring 31 are arranged in the second water outlet hole 28, one end of the second spring 31 is connected with the large diameter end of the conical water outlet valve block 30, the other end is connected with the step formed by the second water outlet hole 28 and the third water outlet hole 29, when the second spring 31 is in a normal state, the small diameter end of the conical water outlet valve block 30 is adapted in the first water outlet hole 27, after the sampling rod 1 is completely taken out, the groundwater in the sampling cavity 4 needs to be discharged at the moment, a plurality of pipes are connected with the unidirectional water outlet pipes 21 of different sampling cavities 4, the underground water in different water sampling cavities 4 is collected in different containers, the threaded shafts 6 in the water sampling cavities 4 for collecting the underground water are all in a working state, at the moment, the double-output-shaft motor 9 is reversed, the piston disc 7 is reversely moved, so that the underground water in the water sampling cavities 4 is extruded, at the moment, the conical water inlet valve block 25 is always matched in the second water inlet hole 23, so that the one-way water inlet pipe 20 is always in a blocking state, the conical water outlet valve block 30 compresses the second spring 31 to move under the extrusion pressure of the piston disc 7, so that the one-way water outlet pipe 21 is in a conducting state, the discharge of the underground water is finished, the one-way water inlet pipe 20 can only carry out one-way water inlet, the one-way water outlet pipe 21 can only carry out one-way water outlet, and the rest time is in a blocking state, so that the problem of the underground water collected in the water sampling cavities 4 is effectively avoided.
In some embodiments, as shown in fig. 1 and 6, a driving shaft 32 is rotatably arranged in the middle of a cutting head 3, one end of the driving shaft 32 is in transmission connection with an output shaft of a double-output-shaft motor 9, a driving bevel gear 33 is sleeved on the driving shaft 32, a plurality of driven shafts 34 are arranged in the cutting head 3 around the driving shaft 32, the driven shafts 34 are rotatably connected to the cutting head 3, driven bevel gears 35 are sleeved on the driven shafts 34, the driven bevel gears 35 are meshed with the driving bevel gears 33, the driven shafts 34 penetrate through the cutting head 3 and are fixedly sleeved with cutting blades 36, the driving shaft 32 is connected with an output shaft of the double-output-shaft motor 9 through a clutch, and the power transmission and the power cutting of the cutting head 3 can be realized through the effect of the clutch, so that the action of the cutting head 3 can be controlled.
In some embodiments, as shown in fig. 6, the cable guiding mechanism includes a moving base 37 and a wire spool 38, the wire spool 38 is installed at the top of the moving base 37, a cable 39 is wound on the wire spool 38, the cable 39 is connected with the sampling shell 2, and the cable 39 is wound and unwound through the rotation of the wire spool 38, so that the sampling rod 1 is lowered or the sampling rod 1 is retracted through the cable 39, the lowering length of the cable 39 is controlled to control the lowering depth of the sampling rod 1, so that groundwater with different depths is sampled and collected, the groundwater is collected controllably, the groundwater layer collection with different depths can be realized, the function of the existing sampler is improved, the layering collection effect of the groundwater is better, and the research and analysis of the groundwater are facilitated.
In the description of the present invention, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "other end," "upper," "one side," "top," "inner," "front," "center," "two ends," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention; and those of ordinary skill in the art will appreciate that the benefits achieved by the present invention are merely better than those achieved by the current embodiments of the prior art in certain circumstances and are not intended to be the most excellent uses directly in the industry.
The foregoing is merely a preferred embodiment of the invention, and it is to be understood that the invention is not limited to the form disclosed herein but is not to be construed as excluding other embodiments, but is capable of numerous other combinations, modifications and environments and is capable of modifications within the scope of the inventive concept, either as taught or as a matter of routine skill or knowledge in the relevant art. And that modifications and variations which do not depart from the spirit and scope of the invention are intended to be within the scope of the appended claims.
Claims (6)
1. The sampler for underground water layered collection comprises a cable guiding mechanism and a sampling rod (1), and is characterized in that the sampling rod (1) comprises a sampling shell (2) and a cutting head (3), the cutting head (3) is installed at one end of the sampling shell (2), the other end of the sampling shell (2) is connected with the cable guiding mechanism, a plurality of water sampling cavities (4) are axially arranged in the sampling shell (2) along the self axial direction, a sealing driving cavity (5) is arranged between every two adjacent water sampling cavities (4), and a piston sampling mechanism is arranged in each water sampling cavity (4);
the piston sampling mechanism comprises a threaded shaft (6) and a piston disc (7), the threaded shaft (6) is rotationally connected with the sampling shell (2), the piston disc (7) is in threaded sleeve connection with the threaded shaft (6), the piston disc (7) is in sliding connection with the sampling shell (2), the outer wall of the sampling shell (2) is connected with a plurality of water sampling pipes (8), the number of the water sampling pipes (8) is equal to the number of the water sampling cavities (4) and corresponds to one, the water sampling pipes (8) are communicated with the water sampling cavities (4), an electromagnetic transmission mechanism is arranged in the sealing driving cavity (5), the electromagnetic transmission mechanism is used for transmitting the threaded shaft (6) connected with two ends, a double-output-shaft motor (9) is arranged in the sampling shell (2), the threaded shaft (6) closest to the cutting head (3) is in transmission connection with one output shaft of the double-output-shaft motor (9), and the other output shaft of the double-output shaft motor (9) is connected with the cutting head (3).
The piston disc (7) comprises a sliding outer disc (10) and a threaded inner disc (11), the threaded inner disc (11) is arranged on the inner ring of the sliding outer disc (10), the threaded inner disc (11) is sleeved on the threaded shaft (6) in a threaded manner, and the outer ring of the threaded inner disc (11) is in friction contact with the inner ring of the sliding outer disc (10);
a sliding rail (12) is fixed on the inner wall of the water sampling cavity (4), a sliding groove (13) is formed in the outer wall of the sliding outer disc (10), and the sliding rail (12) is matched with the sliding groove (13) in a sliding manner;
the electromagnetic transmission mechanism comprises a first friction disc (14), a second friction disc (15) and an electromagnet (16), wherein the first friction disc (14) and the second friction disc (15) are oppositely arranged, the first friction disc (14) and the second friction disc (15) are respectively sleeved on two adjacent threaded shafts (6), the first friction disc (14) is fixedly connected with the threaded shafts (6), the second friction disc (15) is slidably sleeved on the threaded shafts (6), the outer ring of the electromagnet (16) is fixedly connected with the sampling shell (2), the second friction disc (15) is positioned between the first friction disc (14) and the electromagnet (16), a magnetic disc (17) is arranged on the end face, close to the electromagnet (16), of the second friction disc (15), and the magnetic pole of the magnetic disc (17) is the same as the electrified magnetic pole of the electromagnet (16).
The inner ring of second friction disc (15) is equipped with the spline tooth, installs be equipped with spline groove (18) on screw thread axle (6) of second friction disc (15), spline tooth adaptation of second friction disc (15) spline groove (18) of screw thread axle (6), be provided with reset spring (19) in spline groove (18), connect respectively at the both ends of reset spring (19) screw thread axle (6) and second friction disc (15), works as reset spring (19) are in the normal state, second friction disc (15) with first friction disc (14) separation.
2. The sampler for underground water layered collection according to claim 1, wherein the water sampling pipe (8) comprises a unidirectional water inlet pipe (20) and a unidirectional water outlet pipe (21), the unidirectional water inlet pipe (20) is sequentially provided with a first water inlet hole (22), a second water inlet hole (23) and a third water inlet hole (24) along a direction far away from the sampling shell (2), the diameters of the first water inlet hole (22), the second water inlet hole (23) and the third water inlet hole (24) are sequentially reduced, a conical water inlet valve block (25) is arranged in the first water inlet hole (22), a first spring (26) is arranged in the second water inlet hole (23), one end of the first spring (26) is connected with a step formed by the second water inlet hole (23) and the third water inlet hole (24), the other end of the first spring (26) is connected with the conical water inlet valve block (25), and when the first spring (26) is in a normal state, the diameter of the conical water inlet valve block (25) is adapted to the small end of the second water inlet hole (23).
3. The sampler for underground water layered collection according to claim 2, wherein the unidirectional water outlet pipe (21) is sequentially provided with a first water outlet hole (27), a second water outlet hole (28) and a third water outlet hole (29) along a direction far away from the sampling shell (2), the diameters of the first water outlet hole (27) and the third water outlet hole (29) are smaller than the diameter of the second water outlet hole (28), a conical water outlet valve block (30) and a second spring (31) are arranged in the second water outlet hole (28), one end of the second spring (31) is connected with the large diameter end of the conical water outlet valve block (30), the other end of the second spring (31) is connected with a step formed by the second water outlet hole (28) and the third water outlet hole (29), and when the second spring (31) is in a normal state, the small diameter end of the conical water outlet valve block (30) is adapted to the first water outlet hole (27).
4. A sampler for underground water layered collection according to claim 3 and characterized in that the middle part of the cutting head (3) is rotatably provided with a driving shaft (32), one end of the driving shaft (32) is in transmission connection with the output shaft of the double-output-shaft motor (9), a driving bevel gear (33) is sleeved on the driving shaft (32), a plurality of driven shafts (34) are arranged in the cutting head (3) around the driving shaft (32), the driven shafts (34) are rotatably connected with the cutting head (3), driven bevel gears (35) are sleeved on the driven shafts (34), the driven bevel gears (35) are meshed with the driving bevel gears (33), and the driven shafts (34) penetrate out of the cutting head (3) and are fixedly sleeved with cutting blades (36).
5. Sampler for sub-surface water layer collection according to claim 1 characterized in that a sealing ring is arranged between the threaded shaft (6) and the sampling housing (2).
6. A sampler for sub-surface water layered acquisition according to claim 1, characterized in that the cable guiding mechanism comprises a mobile base (37) and a wire spool (38), the wire spool (38) is mounted on top of the mobile base (37), a cable (39) is wound on the wire spool (38), the cable (39) being connected with the sampling housing (2).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211739206.7A CN116104491B (en) | 2022-12-30 | 2022-12-30 | Sampler for underground water layered collection |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211739206.7A CN116104491B (en) | 2022-12-30 | 2022-12-30 | Sampler for underground water layered collection |
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| CN116104491B true CN116104491B (en) | 2023-11-03 |
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| JPH06201542A (en) * | 1993-01-06 | 1994-07-19 | Oyo Corp | Cloed water-sampling container and water-sampling device using it |
| CN209841462U (en) * | 2019-05-10 | 2019-12-24 | 陕西理工大学 | Water quality monitoring sampling device |
| CN209961540U (en) * | 2019-05-20 | 2020-01-17 | 河南世根环境科技有限公司 | Groundwater sample thief for contaminated soil remediation |
| CN211013678U (en) * | 2019-11-25 | 2020-07-14 | 许爱红 | Sewage detection layering sampling device |
| CN216525019U (en) * | 2021-12-14 | 2022-05-13 | 生态环境部华南环境科学研究所 | Sampler for volatile organic compounds in underground water |
| CN115235832A (en) * | 2022-09-22 | 2022-10-25 | 山东省地质矿产勘查开发局八〇一水文地质工程地质大队(山东省地矿工程勘察院) | Underground water layering sampling device |
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2022
- 2022-12-30 CN CN202211739206.7A patent/CN116104491B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06201542A (en) * | 1993-01-06 | 1994-07-19 | Oyo Corp | Cloed water-sampling container and water-sampling device using it |
| CN209841462U (en) * | 2019-05-10 | 2019-12-24 | 陕西理工大学 | Water quality monitoring sampling device |
| CN209961540U (en) * | 2019-05-20 | 2020-01-17 | 河南世根环境科技有限公司 | Groundwater sample thief for contaminated soil remediation |
| CN211013678U (en) * | 2019-11-25 | 2020-07-14 | 许爱红 | Sewage detection layering sampling device |
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| CN115235832A (en) * | 2022-09-22 | 2022-10-25 | 山东省地质矿产勘查开发局八〇一水文地质工程地质大队(山东省地矿工程勘察院) | Underground water layering sampling device |
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