CN114323800A - Pore water collection system in soil - Google Patents
Pore water collection system in soil Download PDFInfo
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- CN114323800A CN114323800A CN202210037378.3A CN202210037378A CN114323800A CN 114323800 A CN114323800 A CN 114323800A CN 202210037378 A CN202210037378 A CN 202210037378A CN 114323800 A CN114323800 A CN 114323800A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 72
- 239000011148 porous material Substances 0.000 title claims abstract description 27
- 239000002689 soil Substances 0.000 title claims abstract description 21
- 238000005070 sampling Methods 0.000 claims abstract description 161
- 239000007788 liquid Substances 0.000 claims description 44
- 239000012530 fluid Substances 0.000 claims description 28
- 238000005192 partition Methods 0.000 claims description 21
- 238000009423 ventilation Methods 0.000 claims description 17
- 238000004891 communication Methods 0.000 claims description 15
- 238000003780 insertion Methods 0.000 claims description 13
- 230000037431 insertion Effects 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 12
- 230000000903 blocking effect Effects 0.000 claims description 11
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 239000012535 impurity Substances 0.000 abstract description 5
- 239000013049 sediment Substances 0.000 description 6
- 238000000429 assembly Methods 0.000 description 5
- 230000000712 assembly Effects 0.000 description 5
- 238000000926 separation method Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 230000003749 cleanliness Effects 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005273 aeration Methods 0.000 description 1
- 230000002337 anti-port Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
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Abstract
The invention discloses a pore water collecting device in soil, which comprises an outer cylinder, a top cover and a conical cylinder, wherein the top cover is fixedly connected to the top end of the outer cylinder, the top of the conical cylinder is fixedly connected with the bottom end of the outer cylinder, an operating shaft is coaxially arranged in the outer cylinder, the top end of the operating shaft penetrates out of the top cover and is rotatably connected with the top cover, the bottom end of the operating shaft is rotatably connected with a bottom plate, and the bottom plate is fixedly connected to the top of the conical cylinder. According to the invention, the outer barrel, the top cover and the conical barrel are arranged, so that the device is convenient to carry, can be directly inserted into the ground for interstitial water sampling, and can start to collect only by rotating the operating shaft by a sampling person, so that convenient and rapid sampling is realized; when inserting the deposit, the arc door is closed and sampling component is in the shrink state, can avoid impurity to enter into the mounting box to reduce the resistance when inserting the deposit, and during the sampling, sampling component inserts in the deposit, can improve sampling efficiency.
Description
Technical Field
The invention relates to the technical field of pore water collection. In particular to a pore water collecting device in soil.
Background
The pore water is underground water deposited among the underground loose sediment particles, a large amount of information is hidden in the pore water, and the information can be obtained by collecting and carrying out certain experimental analysis.
In prior art, generally take out the pore water through sampling device earlier, then carry out the separation of secondary, have the trouble of secondary transportation, can have certain influence to the experiment of pore water, and sample and secondary separation all need different equipment to come into operation, and the operation is inconvenient.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to provide a pore water collecting device in soil, which is convenient to operate, collect and sample and improves the working efficiency.
In order to solve the technical problems, the invention provides the following technical scheme: a pore water collecting device in soil comprises an outer cylinder, a top cover and a conical cylinder, wherein the top cover is fixedly connected to the top end of the outer cylinder, the top of the conical cylinder is fixedly connected with the bottom end of the outer cylinder, an operating shaft is coaxially arranged in the outer cylinder, the top end of the operating shaft penetrates out of the top cover and is rotatably connected with the top cover, the bottom end of the operating shaft is rotatably connected with a bottom plate, and the bottom plate is fixedly connected to the top of the conical cylinder; a rectangular groove is formed in the side wall of the outer barrel, a mounting box is mounted on the inner side wall of the outer barrel, the opening side of the mounting box is inserted into the rectangular groove and is in sealing fit with the groove wall of the rectangular groove, a suction pipe and a sampling assembly are mounted on the mounting box in a penetrating mode respectively, a storage box is communicated with the liquid outlet end of the suction pipe in a fluid mode, the sampling assembly is in sliding fit in the mounting box, and a ventilating and water blocking assembly is communicated with the top of the storage box and the top of the liquid outlet end of the sampling assembly in a fluid mode; the top of the bottom plate is fixedly connected with a first negative pressure assembly and a second negative pressure assembly, the suction end of the first negative pressure assembly is in fluid communication with the air outlet end of the ventilation and water blocking assembly at the top of the storage box through a hose, and the suction end of the second negative pressure assembly is in fluid communication with the air outlet end of the ventilation and water blocking assembly at the top of the liquid outlet end of the sampling assembly through a hose; and a cam driving block is fixedly connected to the side wall of the operating shaft, and the driving end of the cam driving block is in driving connection with one end, close to the operating shaft, of the sampling assembly.
According to the pore water collecting device in soil, the suction pipe and the sampling assembly are located on the same cross section of the outer barrel, the sampling assembly is arranged along the radial direction of the outer barrel, a vertical partition plate is arranged between the suction pipe and the sampling assembly along the height direction of the outer barrel, the side wall of the vertical partition plate is in sealing fit with the inner side wall of the mounting box, and the vertical partition plate divides the mounting box into two mutually independent spaces; the sliding groove is formed in the wall of the outer barrel along the circumferential direction of the outer barrel and penetrates through the rectangular groove, an arc door is in sliding fit in the sliding groove, the area of the arc door is larger than that of the rectangular groove, the side wall surface of the opening of the mounting box and one side of the vertical partition plate are in sliding fit with the inner side wall surface of the arc door in a sealing mode, a driving rod is fixedly connected to the inner side wall of the arc door, and the other end of the driving rod is fixedly connected with the side wall of the operating shaft.
The sampling assembly comprises a sampling tube and a pull rod, the sampling tube penetrates through the mounting box, the pull rod is coaxially and fixedly connected to one end, close to the operating shaft, of the sampling tube, an insertion rod is fixedly connected to the other end of the pull rod, a limiting block is fixedly connected to the other end of the insertion rod, a filter plate is hermetically matched with the middle of the sampling tube, rubber plugs are arranged on two sides of the filter plate on the tube wall of the sampling tube, a liquid inlet is formed in one end, away from the operating shaft, of the sampling tube, a rubber plate is attached to the inner side wall of the sampling tube, the rubber plate is hermetically attached to the liquid inlet, and one side of the rubber plate is fixedly connected with the inner side wall of the sampling tube; the aeration water-blocking component is arranged on the top of the sampling tube and is communicated with the sampling tube in a fluid mode.
Above-mentioned pore water collection system in soil, cam drive piece includes the arc, the indent side of arc with the lateral wall fixed connection of operating axis, the equal fixedly connected with backup pad in evagination lateral wall upper portion and the lower part of arc, equal fixedly connected with deflector on the opposite side of backup pad, two the relative lateral wall face of deflector is close to each other, two the interval between the deflector equals the diameter of inserted bar, the length of inserted bar is greater than the thickness of deflector, the inserted bar inserts two in the gap between the deflector, the stopper with the inserted bar connect one end wall with the inside wall face overlap joint of deflector, the pull rod with the one end wall that the inserted bar is connected with the outside wall overlap joint of deflector.
The above-mentioned pore water collection system in soil, the deflector includes parallel section and drive section, parallel section with drive section's thickness everywhere equals, parallel section with the smooth transition of drive section is connected, parallel section's inside wall arbitrary point position extremely the radial distance of operating shaft axis equals, the inside wall of drive section extremely the radial distance of operating shaft axis: the distance from the end close to the parallel section to the end far away from the parallel section is gradually increased; in a rotational direction in which a cam drive block drives the sampling assembly away from the operating shaft: the parallel section is positioned in front of the driving section; on the same cross section, parallel section both ends with the contained angle that the operating axis constitutes equals to install the installation box lateral wall of suction tube one side with erect the baffle with the contained angle that the operating axis constitutes.
The pore water collecting device in soil comprises a closed pipe, a floating ball, a liquid storage tank and a connecting pipe, wherein the top end of the inner wall and the bottom end of the inner wall of the closed pipe are both concave spherical surfaces with the same diameter as the floating ball, the floating ball is movably arranged in the closed pipe, an air outlet is formed below the side wall of the closed pipe, the minimum linear distance from the air outlet to the bottom end of the inner wall of the closed pipe is larger than the radius of the floating ball, an air vent is formed in the top end of the inner wall of the closed pipe, the liquid storage tank is fixed on the side wall of the closed pipe, the closed pipe is communicated with liquid in the liquid storage tank through the air vent, the air vent is positioned above the side wall of the liquid storage tank, and the top fluid of the liquid storage tank is communicated with the connecting pipe; the bottom end of a closed tube of the ventilation water-blocking assembly positioned above the sampling assembly is vertically inserted into the tube wall of the sampling tube, and the gas outlet is communicated with the sampling tube; the bottom end of a closed pipe of the ventilation water-blocking assembly positioned at the top of the storage box is vertically inserted into the top of the storage box, and the air outlet is communicated with the storage box through fluid.
In the pore water collecting device in soil, the first negative pressure component and the second negative pressure component have the same structure, the first negative pressure component comprises a piston cylinder, a piston and a piston rod, the piston is in sealing fit in the piston cylinder, the piston rod is coaxially arranged in the piston cylinder, the top end of the piston rod is fixedly connected with the bottom end of the piston, a supporting frame is fixedly connected in the piston cylinder, the bottom end of the piston rod penetrates through the support frame and is fixedly connected with a fixed block, a tension spring is sleeved on the piston rod, one end of the tension spring is fixedly connected with the bottom of the piston, the other end of the tension spring is fixedly connected with the top of the support frame, a stop block is fixedly connected to the side wall of the fixed block along the radial direction of the piston cylinder, and a transverse groove is formed in the position, corresponding to the stop block, of the side wall of the piston cylinder; the side wall of the operating shaft is fixedly connected with a movable block, the movable block is clamped in a transverse groove in the side wall of the piston cylinder of the first negative pressure assembly, and the bottom wall of the stop block is lapped on the top of the movable block; the top end of the piston cylinder of the first negative pressure assembly is in fluid communication with a connecting pipe of the ventilation and water blocking assembly at the top of the storage box through a hose; the sampling tube is characterized in that a baffle is fixedly connected to the side wall of the sampling tube, a bolt is fixedly connected to the baffle and inserted into a transverse groove in the side wall of the piston cylinder of the second negative pressure assembly and abuts against the bottom of the stop block.
In the pore water collecting device in soil, the top end of the side wall of the operating shaft is fixedly connected with a handle; the quantity of sampling subassembly is two or more, two or more the sampling subassembly follows the direction of height setting of mounting box, adjacent two be provided with the cross slab between the sampling subassembly, the both sides of cross slab respectively with the lateral wall of erecting the baffle with the inside wall fixed connection of mounting box.
The technical scheme of the invention achieves the following beneficial technical effects:
1. according to the invention, the outer barrel, the top cover and the conical barrel are arranged, so that the device is convenient to carry, can be directly inserted into the ground for interstitial water sampling, and can start to collect only by rotating the operating shaft by a sampling person, so that convenient and rapid sampling is realized; by arranging the operating shaft, the cam driving block and the sampling assembly, when sampling is carried out, the arc door can be controlled to be opened and the sampling assembly can be extended out and inserted into the sediment by rotating the operating shaft, so that the operation is simple and rapid; when inserting the deposit, the arc door is closed and sampling component is in the shrink state, can avoid impurity to enter into the mounting box to reduce the resistance when inserting the deposit, and during the sampling, sampling component inserts in the deposit, can improve sampling efficiency.
2. According to the invention, the installation box can be divided into two independent spaces by arranging the vertical partition plate, the suction tube is matched, the arc door is opened at a certain angle by controlling the operation shaft to rotate to a certain angle in the initial sampling stage, certain disturbance can be caused to the sediment when the collection device is inserted into the sediment, so that the turbidity of the water body is caused, certain trouble can be caused to subsequent tests by direct sampling, the turbid water body can be pumped away by using the suction tube and the storage box, so that the sampling cleanliness is improved, and the turbid water body cannot flow to the sampling assembly under the action of the vertical partition plate, so that the sampling assembly cannot be polluted by the turbid water body.
3. According to the invention, by arranging the cam driving block, the parallel section can ensure that the sampling assembly cannot displace when the arc door is opened to pump away turbid water, so that collision is avoided, and the driving section can drive the sampling assembly to contract or extend out, so that sampling is facilitated.
4. According to the invention, the first negative pressure assembly and the movable block are arranged, so that the first negative pressure assembly can be synchronously started when the operating shaft is rotated, and suction is performed; the opening of the second negative pressure component is controlled by the sampling component, and the movement of the sampling component is controlled by the driving section, so that when the first negative pressure component is opened, the second negative pressure component is closed, and the opening of the arc door, the extension of the sampling component and the opening of the second negative pressure component can be realized only by continuously rotating the operating shaft, and the three components are coordinated and matched, so that the operating steps of sampling personnel are reduced, and the sampling is convenient; the first negative pressure component and the second negative pressure component are pure mechanical mechanisms without the participation of an electric control component, so that the operation stability can be greatly improved for sampling in water after long-time immersion, and the smooth sampling is ensured; utilize the filter to separate the sampling tube for two sections spaces, when taking a sample, can realize filtering, obtain the clearance water and the pure clearance water that have certain impurity to in the follow-up test, can be direct extract, and need not carry out secondary separation.
5. According to the invention, by arranging the ventilation water-blocking component, the sampling can be automatically stopped when the storage box or the sampling pipe is filled with liquid, the liquid can be prevented from entering the negative pressure component, the running stability of the equipment is improved, even if part of the liquid flows out, the liquid can be collected in the liquid storage tank, and the protection performance is improved.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic top cross-sectional view of the present invention;
FIG. 3 is a schematic perspective view of the present invention with the outer cylinder removed;
FIG. 4 is a schematic perspective view of the present invention with the outer barrel and the arc door removed;
FIG. 5 is a schematic perspective view of the cam driving block of the present invention engaged with an insertion rod;
FIG. 6 is a schematic top view of the cam driving block of the present invention engaged with an insertion rod;
FIG. 7 is a schematic top cross-sectional view of the suction tube and sampling assembly of the present invention installed in a mounting box;
FIG. 8 is a schematic front view of the vented water-blocking assembly of the present invention;
FIG. 9 is a schematic cross-sectional front view of a first sub-atmospheric assembly in accordance with the present invention;
FIG. 10 is a schematic sectional view of a second negative pressure module according to the present invention.
The reference numbers in the figures denote: 1-outer cylinder; 2-a top cover; 3-a conical cylinder; 4-operating the shaft; 5, mounting a box; 6-a suction pipe; 601-a storage box; 7-a sampling assembly; 701-a filter plate; 702-a rubber sheet; 703-a rubber plug; 704-a liquid inlet; 705-pull rod; 706-insertion rod; 707-a stop block; 708-a sampling tube; 8-a rectangular groove; 9-arc door; 10-a cam drive block; 101-an arc-shaped plate; 102-a support plate; 103-a guide plate; 104-parallel segment; 105-a drive section; 11-a base plate; 12-a first negative pressure assembly; 121-a piston cylinder; 122-a piston; 123-a piston rod; 124-tension spring; 125-a support frame; 126-fixed block; 127-a stopper; 128-transverse groove; 13-a second negative pressure assembly; 14-a vented water-blocking assembly; 141-a closed tube; 142-a floating ball; 143-gas outlet; 144-a liquid storage tank; 145-connecting tube; 15-vertical partition board; 16-diaphragm plate; 17-a movable block; 18-a drive rod; 19-a baffle plate; 20-bolt.
Detailed Description
The device for collecting pore water in soil in the embodiment, please refer to fig. 1 and 2, comprises an outer cylinder 1, a top cover 2 and a conical cylinder 3, the top cover 2 is in threaded connection with the top end of the outer cylinder 1, the top of the conical cylinder 3 is in threaded connection with the bottom end of the outer cylinder 1, an operating shaft 4 is coaxially arranged in the outer cylinder 1, the top end of the side wall of the operating shaft 4 is fixedly connected with a handle, the top end of the operating shaft 4 penetrates out of the top cover 2 and is rotatably connected with the top cover 2, the bottom end of the operating shaft 4 is rotatably connected with a bottom plate 11, the bottom plate 11 is fixedly connected on the top of the conical barrel 3, by arranging the outer cylinder 1, the top cover 2 and the conical cylinder 3, the portable water sampling device is convenient to carry, can be directly inserted into the ground to sample interstitial water, sampling personnel can start to collect only by rotating the operating shaft 4, so that convenient and fast sampling is realized; a rectangular groove 8 is formed in the side wall of the outer barrel 1, a mounting box 5 is mounted on the inner side wall of the outer barrel 1, the opening side of the mounting box 5 is inserted into the rectangular groove 8 and is in sealing fit with the groove wall of the rectangular groove 8, a suction pipe 6 and a sampling assembly 7 are respectively mounted on the mounting box 5 in a penetrating mode, a storage box 601 is communicated with the liquid outlet end of the suction pipe 6 in a fluid mode, the sampling assembly 7 is in sliding fit in the mounting box 5, and a ventilating and water blocking assembly 14 is communicated with the top of the storage box 601 and the top of the liquid outlet end of the sampling assembly 7 in a fluid mode; a first negative pressure assembly 12 and a second negative pressure assembly 13 are fixedly connected to the top of the bottom plate 11, a suction end of the first negative pressure assembly 12 is in fluid communication with an air outlet end of the air-permeable water blocking assembly 14 at the top of the storage box 601 through a hose, and a suction end of the second negative pressure assembly 13 is in fluid communication with an air outlet end of the air-permeable water blocking assembly 14 at the top of the liquid outlet end of the sampling assembly 7 through a hose; the side wall of the operating shaft 4 is fixedly connected with a cam driving block 10, the driving end of the cam driving block 10 is in driving connection with one end, close to the operating shaft 4, of the sampling assembly 7, and by arranging the operating shaft 4, the cam driving block 10 and the sampling assembly 7, when sampling is carried out, the arc-shaped door 9 can be controlled to be opened and the sampling assembly 7 can be extended out by rotating the operating shaft 4, so that the operation is simple and rapid; when inserting the deposit, arc door 9 is closed and sampling component 7 is in the shrink state, can avoid impurity to enter into mounting box 5 to reduce the resistance when inserting the deposit, and during the sampling, sampling component 7 inserts in the deposit, can improve sampling efficiency.
As shown in fig. 3 and 4, the suction tube 6 and the sampling assembly 7 are located on the same cross section of the outer tube 1, the sampling assembly 7 is arranged along the radial direction of the outer tube 1, a vertical partition plate 15 is arranged between the suction tube 6 and the sampling assembly 7 along the height direction of the outer tube 1, the side wall of the vertical partition plate 15 is in sealing fit with the inner side wall of the mounting box 5, the mounting box 5 is divided into two mutually independent spaces by the vertical partition plate 15, the mounting box 5 can be divided into two independent spaces by the vertical partition plate 15, the suction tube 6 is matched, the arc door 9 is opened at a certain angle by controlling the operation shaft 4 to rotate to a certain angle in the initial sampling stage, and as the collection device is inserted into the deposit, certain disturbance is caused to the deposit, the water body is turbid, and the subsequent test is troubled by direct sampling, the turbid water body can be pumped away by utilizing the suction pipe 6 and the storage box 601, so that the sampling cleanliness is improved, the turbid water body cannot flow to the sampling assemblies 7 under the action of the vertical partition plates 15, so that the sampling assemblies 7 cannot be polluted by the turbid water body, the number of the sampling assemblies 7 is three, the three sampling assemblies 7 are arranged along the height direction of the mounting box 5, the transverse partition plate 16 is arranged between every two adjacent sampling assemblies 7, and two sides of the transverse partition plate 16 are respectively fixedly connected with the side wall of the vertical partition plate 15 and the inner side wall of the mounting box 5; the sliding groove is formed in the wall of the outer barrel 1 along the circumferential direction of the outer barrel, the sliding groove penetrates through the rectangular groove 8, an arc door 9 is in sliding fit in the sliding groove, the area of the arc door 9 is larger than that of the rectangular groove 8, the opening side wall face of the mounting box 5 and one side of the vertical partition plate 15 are in sealing sliding fit with the inner side wall face of the arc door 9, a driving rod 18 is fixedly connected to the inner side wall of the arc door 9, and the other end of the driving rod 18 is fixedly connected with the side wall of the operating shaft 4.
As shown in fig. 7, the sampling assembly 7 includes a sampling tube 708 and a pull rod 705, the sampling tube 708 penetrates through the mounting box 5, the pull rod 705 is coaxially and fixedly connected to one end of the sampling tube 708 close to the operating shaft 4, the other end of the pull rod 705 is fixedly connected to an insertion rod 706, the other end of the insertion rod 706 is fixedly connected to a limiting block 707, a filter plate 701 is hermetically fitted in the middle of the sampling tube 708, rubber plugs 703 are disposed on two sides of the filter plate 701 on the tube wall of the sampling tube 708, a liquid inlet 704 is disposed on one end of the sampling tube 708 far from the operating shaft 4, a rubber plate 702 is attached to the inner side wall of the sampling tube 708, the rubber plate 702 is hermetically attached to the liquid inlet 704, and one side of the rubber plate 702 is fixedly connected to the inner side wall of the sampling tube 708; the vented water blocking assembly 14 is mounted on top of the coupon 708 and is in fluid communication with the coupon 708.
As shown in fig. 5 and 6, the cam driving block 10 includes an arc plate 101, a concave side of the arc plate 101 is fixedly connected to a side wall of the operating shaft 4, upper and lower portions of a convex side wall of the arc plate 101 are fixedly connected to supporting plates 102, the other side of the supporting plate 102 is fixedly connected to a guiding plate 103, opposite side wall surfaces of the two guiding plates 103 are close to each other, a distance between the two guiding plates 103 is equal to a diameter of the insertion rod 706, a length of the insertion rod 706 is greater than a thickness of the guiding plate 103, the insertion rod 706 is inserted into a gap between the two guiding plates 103, a wall surface at a connection end of the limiting block 707 and the insertion rod 706 is overlapped with an inner side wall surface of the guiding plate 103, a wall surface at a connection end of the pull rod 706 and an outer side wall surface of the guiding plate 103 are overlapped, and by providing the cam driving block 10, when parallel section 104 can guarantee to open arc door 9 and take away muddy water, sampling component 7 can not the displacement, avoids bumping, and drive section 105 can drive sampling component 7 and contract or stretch out, is convenient for take a sample.
As shown in fig. 6, the guide plate 103 includes a parallel section 104 and a driving section 105, the thickness of each of the parallel section 104 and the driving section 105 is equal, the parallel section 104 and the driving section 105 are in smooth transition connection, the radial distance from any point of the inner side wall of the parallel section 104 to the axis of the operating shaft 4 is equal, the radial distance from the inner side wall of the driving section 105 to the axis of the operating shaft 4 is: gradually increases from one end close to the parallel section 104 to one end far away from the parallel section 104; in the direction of rotation in which the cam drive block 10 drives the sampling assembly 7 away from the operating shaft 4: the parallel section 104 is located in front of the drive section 105; as shown in fig. 2 and 6, on the same cross section, an included angle B formed by two ends of the parallel section 104 and the axis of the operating shaft 4 is equal to an included angle a formed by the side wall of the mounting box 5 on the side where the suction pipe 6 is mounted and the vertical partition plate 15 and the axis of the operating shaft 4.
As shown in fig. 8, the ventilation and water-blocking assembly 14 includes a closed tube 141, a floating ball 142, a liquid storage tank 144 and a connecting pipe 145, the top end and the bottom end of the inner wall of the closed tube 141 are both concave spherical surfaces having the same diameter as the floating ball 142, the floating ball 142 is movably disposed in the closed tube 141, an air outlet 143 is disposed below the side wall of the closed tube 141, the minimum linear distance from the air outlet 143 to the bottom end of the inner wall of the closed tube 141 is greater than the radius of the floating ball 142, an air vent is disposed on the top end of the inner wall of the closed tube 141, the liquid storage tank 144 is fixed on the side wall of the closed tube 141, the closed tube 141 is in fluid communication with the liquid storage tank 144 through the air vent, the air vent is located above the side wall of the liquid storage tank 144, and the top fluid of the liquid storage tank 144 is in fluid communication with the connecting pipe 145; the bottom end of the closed tube 141 of the air-permeable water-blocking assembly 14 above the sampling assembly 7 is vertically inserted into the tube wall of the sampling tube 708, and the air outlet 143 is in fluid communication with the sampling tube 708; the bottom end of the closed tube 141 of the ventilation water-blocking assembly 14 positioned at the top of the storage box 601 is vertically inserted into the top of the storage box 601, the air outlet 143 is communicated with the fluid of the storage box 601, and by arranging the ventilation water-blocking assembly 14, when the storage box 601 or the sampling tube 708 is filled with liquid, the sampling can be automatically stopped, the liquid can be prevented from entering the negative pressure assembly, the running stability of the equipment is improved, and even if part of the liquid flows out, the liquid can be collected into the liquid storage tank 144, so that the protection performance is improved.
As shown in fig. 9 and 10, the first negative pressure assembly 12 and the second negative pressure assembly 13 have the same structure, the first negative pressure assembly 12 includes a piston cylinder 121, a piston 122 and a piston rod 123, the piston 122 is hermetically fitted in the piston cylinder 121, the piston rod 123 is coaxially disposed in the piston cylinder 121, the top end of the piston rod 123 is fixedly connected with the bottom end of the piston 122, a support frame 125 is fixedly connected in the piston cylinder 121, the bottom end of the piston rod 123 penetrates through the supporting frame 125 and is fixedly connected with a fixing block 126, a tension spring 124 is sleeved on the piston rod 123, one end of the tension spring 124 is fixedly connected with the bottom of the piston 122, the other end of the tension spring 124 is fixedly connected with the top of the support frame 125, a stop 127 is fixedly connected on the side wall of the fixed block 126 along the radial direction of the piston cylinder 121, a transverse groove 128 is formed in the side wall of the piston cylinder 121 at a position corresponding to the stop block 127; a movable block 17 is fixedly connected to the side wall of the operating shaft 4, the movable block 17 is clamped in a transverse groove 128 of the side wall of the piston cylinder 121 of the first negative pressure component 12, and the bottom wall of the stop 127 is lapped on the top of the movable block 17; the top end of the piston cylinder 121 of the first negative pressure assembly 12 is in fluid communication with the connecting pipe 145 of the air-blocking water assembly 14 on the top of the storage box 601 through a hose; a baffle plate 19 is fixedly connected to the side wall of the sampling tube 708, a plug pin 20 is fixedly connected to the baffle plate 19, the plug pin 20 is inserted into the transverse groove 128 of the side wall of the piston cylinder 121 of the second negative pressure component 13 and is pressed against the bottom of the stop block 127, and the first negative pressure component 12 and the movable block 17 are arranged, so that when the operating shaft 4 is rotated, the first negative pressure component 12 can be synchronously opened, and suction is performed; the opening of the second negative pressure component 13 is controlled by the sampling component 7, and the movement of the sampling component 7 is controlled by the driving section 105, so that when the first negative pressure component 12 is opened, the second negative pressure component 13 is closed, and the opening of the arc door 9, the extension of the sampling component 7 and the opening of the second negative pressure component 13 can be realized only by continuously rotating the operating shaft 4, and the three components are coordinated, so that the operation steps of sampling personnel are reduced, and the sampling is convenient; the first negative pressure component 12 and the second negative pressure component 13 are pure mechanical mechanisms without the participation of an electric control part, so that the operation stability can be greatly improved for sampling in water after long-time immersion, and the smooth sampling is ensured; the sampling tube 708 is divided into two sections of spaces by the filter plate 701, and when sampling, filtering can be realized to obtain gap water with certain impurities and pure gap water, so that in subsequent tests, direct extraction can be performed without performing secondary separation.
The working principle is as follows: when the device is used, the conical barrel 3 faces downwards, the whole device is vertically inserted into a sediment, then the operating shaft 4 is rotated to a certain angle, when the device rotates, the parallel section 104 of the cam driving block 10 is connected with the sampling assembly 7, the sampling assembly 7 cannot move, the operating shaft 4 drives the arc door 9 to be opened through the driving rod 18, the suction pipe 6 in the mounting box 5 is exposed, the movable block 17 is synchronously driven to rotate due to the rotation of the operating shaft 4, the stop block 127 of the first negative pressure assembly 12 loses support along with the rotation of the movable block 17, the tension spring 124 contracts to drive the piston 122 to move downwards to form negative pressure, the storage box 601 is sucked, turbid interstitial water is sucked into the storage box 601 through the suction pipe 6, when the storage box 601 is filled with water, as shown in figure 8, the water enters the closed pipe 141 through the air outlet 143, and the floating ball moves upwards due to the fact that the density of the water is higher than the density of the air, then, the vent hole is blocked by the jacking of the water, the sealing is completed, and even if a small amount of water passes through the vent hole, the water can be stored in the liquid storage tank 144 and cannot enter the first negative pressure component 12;
when turbid interstitial water is pumped away, the operating shaft 4 continues to rotate through the cam driving block 10, as shown in fig. 6, at this time, the driving section 105 is connected with the sampling assembly 7, the outer side wall surface of the driving section 105 pushes against the end portion of the pull rod 705, so that the sampling tube 708 is driven to extend outwards, the arc door 9 is synchronously opened continuously, the end portion of the sampling tube 708 is exposed, when the arc door 9 is completely opened, the end portion of the sampling tube 708 is inserted into the sediment, as shown in fig. 4, at the same time, the baffle plate 19 is driven to move due to the movement of the sampling tube 708, the latch 20 is pulled to move, so that the baffle 127 of the second negative pressure assembly 13 is unsupported, the second negative pressure assembly 13 is started, the sampling tube 708 is pumped, interstitial water is pumped into the sampling tube 708 and is filtered by the filter plate 701, when the sampling tube 708 is full of water, the ventilation water blocking assembly 14 above the sampling tube 708 blocks the water by the same principle, completing the collection;
after the collection is accomplished, the operating axis 4 is rotated to the antiport, extracts the device, after transporting to the laboratory, forward rotation operating axis 4 again makes arc 101 open completely and makes sampling tube 708 expose, then continues to rotate operating axis 4, makes the inserted bar 706 deviate from the gap between the deflector 103, then pulls out the subassembly 14 that blocks water that ventilates that is located the sampling tube 708 top to take out sampling tube 708 outward, be convenient for take out the pore water sample.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications are possible which remain within the scope of the appended claims.
Claims (8)
1. The pore water collecting device in soil is characterized by comprising an outer barrel (1), a top cover (2) and a conical barrel (3), wherein the top cover (2) is fixedly connected to the top end of the outer barrel (1), the top of the conical barrel (3) is fixedly connected with the bottom end of the outer barrel (1), an operating shaft (4) is coaxially arranged in the outer barrel (1), the top end of the operating shaft (4) penetrates out of the top cover (2) and is rotatably connected with the top cover (2), the bottom end of the operating shaft (4) is rotatably connected with a bottom plate (11), and the bottom plate (11) is fixedly connected to the top of the conical barrel (3); a rectangular groove (8) is formed in the side wall of the outer barrel (1), a mounting box (5) is mounted on the inner side wall of the outer barrel (1), the opening side of the mounting box (5) is inserted into the rectangular groove (8) and is in sealing fit with the groove wall of the rectangular groove (8), a suction pipe (6) and a sampling assembly (7) are respectively installed on the mounting box (5) in a penetrating mode, a storage box (601) is communicated with the liquid outlet end of the suction pipe (6) in a fluid mode, the sampling assembly (7) is in sliding fit with the mounting box (5), and a ventilation water blocking assembly (14) is communicated with the top of the storage box (601) and the top of the liquid outlet end of the sampling assembly (7) in a fluid mode; the top of the bottom plate (11) is fixedly connected with a first negative pressure assembly (12) and a second negative pressure assembly (13), the suction end of the first negative pressure assembly (12) is in fluid communication with the air outlet end of the ventilation water-blocking assembly (14) at the top of the storage box (601) through a hose, and the suction end of the second negative pressure assembly (13) is in fluid communication with the air outlet end of the ventilation water-blocking assembly (14) at the top of the liquid outlet end of the sampling assembly (7) through a hose; the side wall of the operating shaft (4) is fixedly connected with a cam driving block (10), and the driving end of the cam driving block (10) is in driving connection with one end, close to the operating shaft (4), of the sampling assembly (7).
2. The pore water collecting device in soil as claimed in claim 1, characterized in that the suction pipe (6) and the sampling assembly (7) are positioned on the same cross section of the outer barrel (1), the sampling assembly (7) is arranged along the radial direction of the outer barrel (1), a vertical partition plate (15) is arranged between the suction pipe (6) and the sampling assembly (7) along the height direction of the outer barrel (1), the side wall of the vertical partition plate (15) is in sealing fit with the inner side wall of the mounting box (5), and the vertical partition plate (15) divides the mounting box (5) into two mutually independent spaces; the sliding groove is formed in the wall of the outer barrel (1) along the circumferential direction of the inner barrel, the sliding groove penetrates through the rectangular groove (8), an arc door (9) is arranged in the sliding groove in a sliding fit mode, the area of the arc door (9) is larger than that of the rectangular groove (8), the wall face of the opening side of the mounting box (5) and one side of the vertical partition plate (15) are in sliding fit with the inner side wall face of the arc door (9) in a sealing mode, a driving rod (18) is fixedly connected to the inner side wall of the arc door (9), and the other end of the driving rod (18) is fixedly connected with the side wall of the operating shaft (4).
3. The pore water collecting device in soil according to claim 1, wherein the sampling assembly (7) comprises a sampling tube (708) and a pull rod (705), the sampling tube (708) penetrates through the mounting box (5), the pull rod (705) is coaxially and fixedly connected to one end of the sampling tube (708) close to the operating shaft (4), the other end of the pull rod (705) is fixedly connected with an insertion rod (706), the other end of the insertion rod (706) is fixedly connected with a limiting block (707), a filter plate (701) is hermetically matched at the middle part in the sampling tube (708), rubber plugs (703) are arranged on two sides of the filter plate (701) on the tube wall of the sampling tube (708), a liquid inlet (704) is arranged on one end of the sampling tube (708) far away from the operating shaft (4), a rubber plate (702) is attached to the inner side wall of the sampling tube (708), the rubber plate (702) is attached to the liquid inlet (704) in a sealing mode, and one side of the rubber plate (702) is fixedly connected with the inner side wall of the sampling tube (708); the vented water blocking assembly (14) is mounted on top of the sampling tube (708) and is in fluid communication with the sampling tube (708).
4. The pore water collecting device in soil according to claim 3, characterized in that the cam driving block (10) comprises an arc plate (101), the inner concave side of the arc plate (101) is fixedly connected with the side wall of the operating shaft (4), the upper part and the lower part of the outer convex side wall of the arc plate (101) are fixedly connected with a supporting plate (102), the other side of the supporting plate (102) is fixedly connected with a guide plate (103), the opposite side wall surfaces of the two guide plates (103) are close to each other, the distance between the two guide plates (103) is equal to the diameter of the inserting rod (706), the length of the inserting rod (706) is larger than the thickness of the guide plates (103), the inserting rod (706) is inserted into the gap between the two guide plates (103), the end wall surface of the limiting block (707) connected with the inserting rod (706) is overlapped with the inner side wall surface of the guide plates (103), one end wall surface of the pull rod (705) connected with the insert rod (706) is overlapped with the outer side wall surface of the guide plate (103).
5. The pore water collection device in soil according to claim 4, wherein the guide plate (103) comprises a parallel section (104) and a driving section (105), the thicknesses of the parallel section (104) and the driving section (105) are equal, the parallel section (104) and the driving section (105) are in smooth transition connection, the radial distance from any point position of the inner side wall of the parallel section (104) to the axis of the operating shaft (4) is equal, and the radial distance from the inner side wall of the driving section (105) to the axis of the operating shaft (4) is: gradually increases from one end close to the parallel section (104) to one end far away from the parallel section (104); in a rotational direction in which a cam drive block (10) drives the sampling assembly (7) away from the operating shaft (4): the parallel section (104) is located in front of the drive section (105); on same cross section, parallel section (104) both ends with the contained angle that operating shaft (4) axis constitutes equals to install mounting box (5) lateral wall and perpendicular baffle (15) of suction tube (6) one side with the contained angle that operating shaft (4) axis constitutes.
6. The pore water collecting device in soil according to claim 3, wherein the ventilation and water-blocking assembly (14) comprises a closed pipe (141), a floating ball (142), a liquid storage tank (144) and a connecting pipe (145), the top end and the bottom end of the inner wall of the closed pipe (141) are both concave spherical surfaces with the same diameter as the floating ball (142), the floating ball (142) is movably arranged in the closed pipe (141), an air outlet (143) is arranged below the side wall of the closed pipe (141), the minimum linear distance from the air outlet (143) to the bottom end of the inner wall of the closed pipe (141) is larger than the radius of the floating ball (142), a vent hole is arranged at the top end of the inner wall of the closed pipe (141), the liquid storage tank (144) is fixed on the side wall of the closed pipe (141), and the closed pipe (141) is communicated with the liquid storage tank (144) through the vent hole, the air vent is positioned above the side wall of the liquid storage tank (144), and a connecting pipe (145) is communicated with the top of the liquid storage tank (144) through fluid; the bottom end of a closed tube (141) of the ventilation water-blocking assembly (14) positioned above the sampling assembly (7) is vertically inserted into the tube wall of the sampling tube (708), and the air outlet (143) is in fluid communication with the sampling tube (708); the bottom end of a closed pipe (141) of the ventilation water-blocking assembly (14) positioned at the top of the storage box (601) is vertically inserted into the top of the storage box (601), and the air outlet (143) is communicated with the storage box (601) in a fluid mode.
7. The pore water collecting device in soil according to claim 6, wherein the first negative pressure assembly (12) and the second negative pressure assembly (13) have the same structure, the first negative pressure assembly (12) comprises a piston cylinder (121), a piston (122) and a piston rod (123), the piston (122) is hermetically matched in the piston cylinder (121), the piston rod (123) is coaxially arranged in the piston cylinder (121), the top end of the piston rod (123) is fixedly connected with the bottom end of the piston (122), a support frame (125) is fixedly connected in the piston cylinder (121), the bottom end of the piston rod (123) penetrates through the support frame (125) and is fixedly connected with a fixed block (126), a tension spring (124) is sleeved on the piston rod (123), and one end of the tension spring (124) is fixedly connected with the bottom of the piston (122), the other end of the tension spring (124) is fixedly connected with the top of the support frame (125), a stop block (127) is fixedly connected to the side wall of the fixed block (126) along the radial direction of the piston cylinder (121), and a transverse groove (128) is formed in the side wall of the piston cylinder (121) at a position corresponding to the stop block (127); the side wall of the operating shaft (4) is fixedly connected with a movable block (17), the movable block (17) is clamped into a transverse groove (128) in the side wall of a piston cylinder (121) of the first negative pressure assembly (12), and the bottom wall of the stop block (127) is lapped on the top of the movable block (17); the top end of the piston cylinder (121) of the first negative pressure assembly (12) is in fluid communication with a connecting pipe (145) of the ventilation water-blocking assembly (14) at the top of the storage box (601) through a hose; the side wall of the sampling tube (708) is fixedly connected with a baffle plate (19), the baffle plate (19) is fixedly connected with a bolt (20), and the bolt (20) is inserted into a transverse groove (128) in the side wall of the piston cylinder (121) of the second negative pressure component (13) and abuts against the bottom of the stop block (127).
8. The pore water collecting device in soil as claimed in claim 2, wherein a handle is fixedly connected to the top end of the side wall of the operating shaft (4); the quantity of sampling subassembly (7) is two or more, two or more sampling subassembly (7) are followed the direction of height setting of mounting box (5), adjacent two be provided with cross slab (16) between sampling subassembly (7), the both sides of cross slab (16) respectively with the lateral wall of erecting baffle (15) with the inside wall fixed connection of mounting box (5).
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115931450A (en) * | 2023-02-23 | 2023-04-07 | 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) | Groundwater sampling device for hydrogeology |
| CN116448493A (en) * | 2023-06-16 | 2023-07-18 | 交通运输部天津水运工程科学研究所 | Underwater sediment sample collecting device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211668816U (en) * | 2020-03-12 | 2020-10-13 | 四川省兴冶岩土工程检测有限责任公司 | Self-made soil collector |
| CN111855312A (en) * | 2020-07-31 | 2020-10-30 | 中国科学院南京地理与湖泊研究所 | Portable sediment profile gap water in-situ rapid sampling device |
| US20210208031A1 (en) * | 2020-01-07 | 2021-07-08 | Chinese Research Academy Of Environmental Sciences | Diffusive gradients in thin films (dgt) probe test device for sediment core in lake and test method using the same |
| WO2021227605A1 (en) * | 2020-05-13 | 2021-11-18 | 中国科学院海洋研究所 | Rov-based in-situ detection system and method for acoustic parameters of deep sea sediment |
-
2022
- 2022-01-13 CN CN202210037378.3A patent/CN114323800B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210208031A1 (en) * | 2020-01-07 | 2021-07-08 | Chinese Research Academy Of Environmental Sciences | Diffusive gradients in thin films (dgt) probe test device for sediment core in lake and test method using the same |
| CN211668816U (en) * | 2020-03-12 | 2020-10-13 | 四川省兴冶岩土工程检测有限责任公司 | Self-made soil collector |
| WO2021227605A1 (en) * | 2020-05-13 | 2021-11-18 | 中国科学院海洋研究所 | Rov-based in-situ detection system and method for acoustic parameters of deep sea sediment |
| CN111855312A (en) * | 2020-07-31 | 2020-10-30 | 中国科学院南京地理与湖泊研究所 | Portable sediment profile gap water in-situ rapid sampling device |
Non-Patent Citations (1)
| Title |
|---|
| 秦华伟;陈鹰;顾临怡;: "海底沉积物取样的扰动机理研究", 海洋学报(中文版), no. 02, 30 March 2007 (2007-03-30) * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115931450A (en) * | 2023-02-23 | 2023-04-07 | 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) | Groundwater sampling device for hydrogeology |
| CN116448493A (en) * | 2023-06-16 | 2023-07-18 | 交通运输部天津水运工程科学研究所 | Underwater sediment sample collecting device |
| CN116448493B (en) * | 2023-06-16 | 2023-09-12 | 交通运输部天津水运工程科学研究所 | Underwater sediment sample collecting device |
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