CN115876529B - A stratified groundwater sampling device - Google Patents
A stratified groundwater sampling deviceInfo
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- CN115876529B CN115876529B CN202211579083.5A CN202211579083A CN115876529B CN 115876529 B CN115876529 B CN 115876529B CN 202211579083 A CN202211579083 A CN 202211579083A CN 115876529 B CN115876529 B CN 115876529B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
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Abstract
本发明公开了一种可分层地下水取样设备。要解决的技术问题是：现有装置过滤防堵效果差，取样的样品容易受到扰动，影响样品代表性和分析检测结果。本发明的技术实施方案为：一种可分层地下水取样设备，包括有防护外壳和增重块等；防护外壳外表面安装有两个前后对称的增重块。本发明实现了通过保温板对设备内部与外部进行隔绝，防止设备内部的水样温度受到影响，进而影响取样精度，同时为了保证在取样过程中，设备的稳定性，因此，在防护外壳外表面设置有呈弧面状的增重块，通过增重块防止设备在地下水中时，受到地下水较大的冲击，导致设备摆动幅度过大，对于外部绳索的磨损严重，有效降低外部绳索的磨损程度。
This invention discloses a stratified groundwater sampling device. The technical problem to be solved is that existing devices have poor filtration and anti-clogging effects, and the sampled water is easily disturbed, affecting the representativeness of the sample and the analytical results. The technical implementation of this invention is as follows: a stratified groundwater sampling device includes a protective shell and weight blocks; two symmetrically arranged weight blocks are installed on the outer surface of the protective shell. This invention achieves insulation between the inside and outside of the device through an insulation plate, preventing the temperature of the water sample inside the device from being affected, thus affecting the sampling accuracy. Simultaneously, to ensure the stability of the device during sampling, arc-shaped weight blocks are provided on the outer surface of the protective shell. These weight blocks prevent the device from being subjected to large impacts from groundwater when submerged, thus reducing excessive swaying and severe wear on the external ropes.
Description
Technical Field
The invention relates to the field of groundwater, in particular to a layered groundwater sampling device.
Background
Groundwater resources are important strategic resources for supporting sustainable development of economy and society, and groundwater pollution control is an important component part of water environment protection and drinking water safety guarantee system construction in China. In recent years, with the rapid development of the economic society of China, the pressure of groundwater environment is gradually increased, the problem of regional groundwater pollution is increasingly highlighted, the problem of local groundwater pollution is very prominent, and the water quality safety of partial groundwater drinking water source is not guaranteed. Due to the complex hydrogeological conditions of groundwater, the investigation and sampling of groundwater presents great difficulties, especially in cases involving multiple layers of groundwater or NAPL phase contaminants, where stratified sampling is necessary. Therefore, the detection of the change condition of the underground water is beneficial to timely treatment and repair and prevents further pollution of pollutants.
When taking a sample to groundwater, in order to detect the concrete condition of different degree of depth groundwater, then need the layering sample, chinese patent application number 202110282434.5, a groundwater layering sampler, through starting servo motor, make the sampling box descend, at this in-process, still can make the push rod push down the locating lever along the inside wall limit rotation side downwardly moving of landing leg, when the locating lever reached the assigned position, because the setting of buffer spring makes the lateral wall of gear unable mesh with the lateral wall of push rod, bring the damage to the gear when preventing that the sampling box descends, in the in-process that the sampling box descends, clear up the lateral wall of sampling box through the brush hair, guaranteed the cleanliness of sampling box surface, prevent that the dust of sampling box lateral wall adhesion from causing the pollution to groundwater, the use of influence personnel has been guaranteed personnel's health and safety, the stability when taking a sample of groundwater of the device has been improved. The device has proposed protection, the dirt-proof of self to the gear, but in the sampling process, utilizes groundwater pressure to take a sample, beats the clearance through the spring to the filter screen after the sample, prevents to block up, but the cleaning performance is poor, and when taking a sample to the groundwater of different degree of depth in addition, it can't ensure that the sample of taking a sample can not appear mixed problem, influences testing result.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and aims to provide layered groundwater sampling equipment with good filtering and anti-blocking effects, no mixing of sampled samples and high sampling purity.
The invention aims at achieving the purposes, and the technical scheme is that the layered groundwater sampling device comprises a protective shell, a weight increasing block, a connecting frame, a sling and a spiral cover, wherein the outer surface of the protective shell is provided with two weight increasing blocks which are symmetrical in front and back, the connecting frame is arranged on the upper side of the protective shell, the sling is connected to the connecting frame, the spiral cover is movably connected to the upper side of the protective shell, the layered groundwater sampling device further comprises a layered sampling assembly and a conversion assembly, the layered sampling assembly for performing layered sampling on groundwater is arranged on the inner side of the protective shell, the conversion assembly for converting and collecting different sampled water is arranged on the inner side of the protective shell, and the conversion assembly is in contact with the lower surface of the spiral cover.
As a further preferred embodiment, the weighting blocks are arranged in the shape of a cambered surface.
As a further preferable scheme, the layered sampling assembly comprises a heat insulation plate, a water inlet pipe, a connecting pipe, filter cotton, a spray head, a baffle, a sealing ring, a connecting shaft, a first bevel gear, an air cylinder, a separation disc, a round rod, an elastic piece, an air pipe, a rack, a first flat gear and a second bevel gear; the inner side of the protective shell is fixedly connected with a heat insulation plate, a water inlet pipe is arranged on the protective shell, the water inlet pipe penetrates through the heat insulation plate, an air cylinder is fixedly connected to the upper portion of the inner side of the heat insulation plate, a connecting pipe is communicated between the air cylinder and the water inlet pipe, filter cotton is arranged on the right portion of the inner side of the water inlet pipe, a jet head is arranged on the right portion of the inner side of the water inlet pipe and positioned on the left side of the jet head, a sealing ring is arranged on the right portion of the inner side of the water inlet pipe and positioned on the outer side of the sealing ring, a connecting shaft is fixedly connected to the baffle and is rotationally connected with the water inlet pipe, a first bevel gear is fixedly connected to the upper side of the connecting shaft, an elastic piece is fixedly connected to the inner side of the air cylinder, a round rod is slidingly connected to the inner side of the air cylinder, the round rod is positioned on the outer side of the elastic piece, a separation disc is fixedly connected to the lower end of the elastic piece, the separation disc is fixedly connected to the round rod, the upper side of the air cylinder is fixedly connected with a rack, the inner side of the protective shell is rotationally connected to the inner side of the air cylinder, a first flat gear is rotationally connected to the connecting rod through the connecting rod, the inner side of the protective shell is rotationally connected to the first bevel gear, the inner side of the protective shell is rotatably connected to the second bevel gear through the connecting rod, and the connecting rod is meshed with the first bevel gear.
As a further preferable scheme, the injection head is arranged in a round table shape, and a plurality of through holes are formed on the right side.
As a further preferable mode, the partition plate divides the inflator into upper and lower spaces which are not communicated with each other.
As a further preferable mode, the communicating part of the connecting pipe and the water inlet pipe is positioned between the jet head and the baffle plate.
The conversion assembly comprises a fixed ring, a baffle disc, a servo motor, a second flat gear, a hollow rod, a third flat gear, a connecting disc, sampling tubes, collecting tubes, sampling tubes, waste discharge tubes and a limiting disc, wherein the middle part of the inner side of the heat preservation plate is fixedly connected with the fixed ring, the baffle disc is fixedly connected with the inner side of the fixed ring, the hollow rod is rotationally connected with the fixed ring, the servo motor is arranged on the inner side of the heat preservation plate, the second flat gear is fixedly connected with an output shaft of the servo motor, the third flat gear is fixedly connected with the hollow rod, the third flat gear is meshed with the second flat gear, the lower side of the hollow rod is fixedly connected with the connecting disc, three sampling tubes which are annularly arranged are fixedly connected with the lower surface of the connecting disc, three collecting tubes which are annularly arranged are fixedly connected with the upper part of the inner side of the heat preservation plate, one waste discharge tube is respectively arranged between the lower side of the three sampling tubes and the limiting disc, the waste discharge tubes are arranged at the central point of the three collecting tubes, and the three waste discharge tubes are in contact with the lower surfaces of the waste discharge tubes and the rotary cover.
As a further preferable scheme, the baffle disc is provided with a round hole corresponding to the water inlet pipe.
As a further preferable scheme, a sampling water inlet and a waste water cleaning water inlet are formed in the connecting disc.
As a further preferred embodiment, the conduit of the discharge tube below the connecting disc is provided as a hose.
The invention has the advantages that the insulation of the inside and the outside of the equipment is realized through the insulation board, the influence of the temperature of a water sample in the equipment is prevented, the sampling precision is further influenced, and meanwhile, in order to ensure the stability of the equipment in the sampling process, the outer surface of the protective shell is provided with the cambered surface weight increasing block, the weight increasing block is used for preventing the equipment from being impacted by the groundwater greatly when in the groundwater, the swinging amplitude of the equipment is overlarge, the abrasion of an external rope is serious, and the abrasion degree of the external rope is effectively reduced;
The baffle is driven to rotate ninety degrees through the connecting shaft, so that underground water smoothly enters the sampling tube through the water inlet tube, impurities in the underground water are filtered through the filter cotton, after sampling at a first depth is completed, the baffle is reversed for ninety degrees to reset when sampling at another depth is carried out, the underground water is prevented from continuously entering the sampling tube, when the separation disc moves downwards to reset, water in a space below the air cylinder is extruded, and when the extruded water passes through the injection head, the injection head is in a circular truncated cone shape, a plurality of through holes are formed in the right side, so that the extruded water has a certain impact force after passing through the injection head, and a certain impact force is generated on the filter cotton, so that the surface of the filter cotton is adhered and the filtered impurities are washed away, and the filter cotton is prevented from being blocked;
The second flat gear drives the third flat gear to rotate by sixty degrees anticlockwise, the collecting pipe rotates to the position right below the water outlet of the water inlet pipe, after the equipment descends to the depth of the water body of the second sampling, the equipment stops descending, water which is remained in the water inlet pipe and is sampled last time is washed through the water of the second sampling, the water is collected through the collecting pipe, the water is treated as wastewater, after one to two minutes of washing, the servo motor is controlled to start working again, the connecting disc rotates by sixty degrees again, the other sampling pipe rotates to the position right below the water outlet of the water inlet pipe, the second sampling is completed, the problem of mixing of sampling water is prevented, and the purity of sampling is ensured.
Drawings
These and other features of this disclosure will be more readily understood from the following detailed description of the various aspects of the disclosure taken in conjunction with the accompanying drawings that depict various embodiments of the disclosure, in which:
FIG. 1 is a schematic perspective view of a first embodiment of the present invention;
FIG. 2 is a schematic view of a second perspective structure of the present invention;
FIG. 3 is a cross-sectional view of the present invention;
FIG. 4 is a schematic view of a partial perspective structure of the present invention;
FIG. 5 is a first cross-sectional view of a layered sampling assembly of the present invention;
FIG. 6 is a second cross-sectional view of the stratified sampling assembly of the present invention;
FIG. 7 is a cross-sectional view of a conversion assembly of the present invention;
fig. 8 is a partial exploded view of the conversion assembly of the present invention.
The reference number name in the drawing is 1-protective shell, 2-weight increasing block, 3-connecting frame, 4-sling, 5-spiral cover, 201-heat insulation plate, 202-water inlet pipe, 203-connecting pipe, 204-filter cotton, 205-jet head, 206-baffle, 207-sealing ring, 208-connecting shaft, 209-first bevel gear, 2010-inflator, 2011-separation disc, 2012-round bar, 2013-elastic piece, 2014-air pipe, 2015-rack, 2016-first flat gear, 2017-second bevel gear, 301-fixed ring, 302-baffle disc, 303-servo motor, 304-second flat gear, 305-hollow bar, 306-third flat gear, 307-connecting disc, 308-sampling tube, 309-collecting tube, 3010-exhaust tube, 3011-exhaust tube and 3012-limit disc.
Detailed Description
The invention will be described in detail below with reference to the drawings in connection with embodiments.
1-8, The layered groundwater sampling device comprises a protective housing 1, weighting blocks 2, a connecting frame 3, slings 4 and a spiral cover 5, wherein the outer surface of the protective housing 1 is provided with the two weighting blocks 2 which are symmetrical in front and back, the upper side of the protective housing 1 is provided with the connecting frame 3, the connecting frame 3 is connected with the slings 4, and the upper side of the protective housing 1 is movably connected with the spiral cover 5;
the device also comprises a layered sampling component and a conversion component, wherein the layered sampling component is arranged on the inner side of the protective shell 1, the conversion component is arranged on the inner side of the protective shell 1, and the conversion component contacts the lower surface of the spiral cover 5.
The weight-increasing block 2 is arranged in a cambered surface shape.
The layered sampling assembly comprises a thermal insulation plate 201, a water inlet pipe 202, a connecting pipe 203, filter cotton 204, an injector head 205, a baffle 206, a sealing ring 207, a connecting shaft 208, a first bevel gear 209, an air cylinder 2010, a separation disc 2011, a round rod 2012, an elastic piece 2013, an air pipe 2014, a rack 2015, a first flat gear 2016 and a second bevel gear 2017; the inside of the protective shell 1 is fixedly connected with a heat insulation plate 201, a water inlet pipe 202 is arranged on the protective shell 1, the water inlet pipe 202 penetrates through the heat insulation plate 201, a first bevel gear 209 is fixedly connected to the upper part of the inner side of the heat insulation plate 201, an elastic element 2013 is fixedly connected to the inner side of the air cylinder 2010, a round rod 2012 is slidingly connected to the inner side of the air cylinder 2010, a separation disc 2011 is fixedly connected to the lower end of the elastic element 2013, the separation disc 2011 is fixedly connected to the round rod 2012, an air pipe 2014 is communicated to the upper side of the inner side of the air cylinder 202, the upper side of the round rod 2012 is fixedly connected with a connecting shaft 208, the connecting shaft 208 is fixedly connected to the baffle 206, the connecting shaft 208 is rotatably connected with the water inlet pipe 202, a first bevel gear 209 is fixedly connected to the upper side of the connecting shaft 208, the inner side of the air cylinder 2010 is fixedly connected with a connecting shaft 2013, the inner side of the air cylinder 2010 is slidably connected with a round rod 2012, the round rod 2012 is positioned on the outer side of the elastic element 2013, a separation disc 2013 is fixedly connected to the lower end of the separation disc 2011, the upper side of the round rod 2011 is fixedly connected with the round rod 2012, the upper side of the air pipe 2014 is fixedly connected to the upper side of the round rod 2012, the inner side of the round rod 2012 is fixedly connected to the inner side of the air cylinder, the connecting rod 2012 is fixedly connected to the connecting shaft 208, a connecting shaft 208 is rotatably connected to the connecting shaft 208, the connecting shaft 208 is rotatably to the connecting shaft 2011, the connecting rod is rotatably connected to the connecting rod 2017 to the inner side of the air pump 2017 by a second bevel gear 2017 is rotatably through a second bevel gear 2017, the water pressure is meshed with the water pressure valve 2017, sampling is completed.
The elastic member 2013 is a spring.
The injector head 205 is provided in a truncated cone shape, and a plurality of through holes are opened on the right side.
The partition plate 2011 divides the air cylinder 2010 into two spaces which are not communicated with each other.
The connection pipe 203 is connected to the water inlet pipe 202 between the injector head 205 and the baffle 206.
The conversion assembly comprises a fixed ring 301, a baffle plate 302, a servo motor 303, a second flat gear 304, a hollow rod 305, a third flat gear 306, a connecting disc 307, a sampling tube 308, a collecting tube 309, a sampling tube 3010, a waste discharging tube 3011 and a limiting disc 3012, wherein the fixed ring 301 is fixedly connected to the middle of the inner side of the heat preservation plate 201, the baffle plate 302 is fixedly connected to the inner side of the fixed ring 301, the hollow rod 305 is rotatably connected to the fixed ring 301, the servo motor 303 is arranged on the inner side of the heat preservation plate 201, the output shaft of the servo motor 303 is fixedly connected with the second flat gear 304, the third flat gear 306 is fixedly connected to the hollow rod 305, the third flat gear 306 is meshed with the second flat gear 304, the lower side of the hollow rod 305 is fixedly connected with the connecting disc 307, three annularly arranged sampling tubes 308 are fixedly connected to the lower surface of the connecting disc 307, three annularly arranged collecting tubes 309 are fixedly connected to the lower surface of the connecting disc 307, one sampling tube 3010 is fixedly connected to the upper portion of the inner side of the heat preservation plate 201, the waste discharging tube 3011 is arranged between the lower side of the three sampling tubes 308 and the limiting disc 3012, the waste discharging tube 3011 is arranged at the center point of the three collecting tubes 3011, the three sampling tubes are arranged, the waste discharging tubes are meshed with the lower surfaces of the sampling tube 307 and the lower surface of the sampling tube 3010 and the sampling tube and the sample is in opposite to the sample storage and the sample is not in contact with the surface of the sampling tube 3015.
The baffle plate 302 is provided with a round hole corresponding to the water inlet pipe 202.
The connection plate 307 is provided with a sampling water inlet and a cleaning wastewater inlet.
The tubing of the drainage tube 3010 below the connection pad 307 is provided as a hose.
When needs are sampled to groundwater, install through hoist cable 4 and outside rope and be connected, then put into groundwater through outside rope with equipment, then take a sample to groundwater, during the sample, also need detect sample temperature, consequently, isolate inside and the outside of equipment through heated board 201, prevent that the inside water sample temperature of equipment from receiving the influence, and then influence the sampling accuracy, and simultaneously, in order to guarantee the stability at the in-process equipment of taking a sample, consequently, be provided with the weight 2 that is the cambered surface form at protective housing 1 surface, when preventing equipment in groundwater through weight 2, receive the great impact of groundwater, lead to equipment swing range too big, serious to the wearing and tearing of outside rope.
Meanwhile, in the process of further processing and sampling, the problem that impurities enter the sampled water, namely the problems of filtration and blocking prevention exist, and meanwhile, the ground water to be subjected to layered sampling, such as the sampled water, is different in sampling depth, so that mixing among the sampled water of different depths is prevented, and therefore, when the ground water of another depth is ready to be sampled after sampling is finished each time, the residual water of the previous sampling needs to be cleaned, so that the mixing problem is solved.
Filtering and anti-blocking treatment: when the apparatus is lowered to a sampling depth designated by groundwater, the apparatus stops being lowered, and the groundwater automatically enters the water inlet pipe 202 and passes through the through holes of the filter cotton 204 and the spray head 205 due to external water pressure, at this time, the water inlet pipe 202 is still in a state of being blocked by the baffle 206 and the seal ring 207, and the groundwater cannot enter the sampling pipe 308, and at the same time, the air pipe 2014 is externally connected with the air pump, and then the pump is controlled to start to work, the pump sucks the inside of the air cylinder 2010 through the air pipe 2014, and as the inside of the air cylinder 2010 is partitioned into two spaces which are not communicated with each other up and down by the partition plate 2011, the air pressure of the space above the inside of the air cylinder 2010 is lowered, so that the groundwater enters the space below the inside of the air cylinder 2010 through the connecting pipe 203 and simultaneously makes the partition plate 2011 drive the round rod 2012 to slide upward, and compresses the elastic member 2013, when the round rod 2012 moves upward, the circular rod 2012 simultaneously drives the rack 2015 to move upwards, the rack 2015 is meshed with the first flat gear 2016, the first flat gear 2016 is driven to rotate ninety degrees through the rack 2015, the first flat gear 2016 is further driven to rotate ninety degrees through the first flat gear 2016 and the second bevel gear 2017, then the second bevel gear 2017 simultaneously drives the first bevel gear 209 to rotate ninety degrees, then the first bevel gear 209 drives the connecting shaft 208 to rotate ninety degrees, the baffle 206 is further driven to rotate ninety degrees through the connecting shaft 208, so that groundwater smoothly enters the sampling tube 308 through the water inlet pipe 202, at the same time, impurities in the groundwater are filtered through the filter cotton 204, after sampling at a first depth is completed, when sampling at another depth is carried out, the pump is controlled to charge the space above the inflator 2010, the space above the inflator is further pressurized, the separating disc 2011 and the circular rod 2012 move downwards, and the circular rod 2012 is reset, when the round bar 2012 moves downwards, the round bar 2012 drives the rack 2015 to move downwards for resetting, so that the rack 2015 drives the first flat gear 2016 to rotate reversely by ninety degrees, so that the baffle 206 rotates reversely by ninety degrees for resetting, groundwater is prevented from continuously entering the sampling tube 308, when the separation disc 2011 moves downwards for resetting, water in the space below the inside of the air cylinder 2010 is extruded out of the water inlet tube 202 through the connecting tube 203, and when the extruded water passes through the injection head 205, the injection head 205 is arranged into a circular truncated cone shape, a plurality of through holes are formed in the right side, so that the extruded water passes through the through holes of the injection head 205, a certain impact force is generated on the filter cotton 204, and impurities adhered and filtered on the surface of the filter cotton 204 are prevented from being washed away, and the filter cotton 204 is prevented from being blocked.
Stratified sampling, preventing mixing: when the first sampling is completed, the device is continuously lowered, meanwhile, the servo motor 303 is controlled to start working, the servo motor 303 is independently powered by a battery, the servo motor 303 drives the second flat gear 304 to rotate clockwise for sixty degrees based on the condition that the device is seen from top to bottom, then the second flat gear 304 drives the third flat gear 306 to rotate anticlockwise for sixty degrees, the collecting pipe 309 rotates to the position right below the water outlet of the water inlet pipe 202, when the device is lowered to the depth of the water body for the second sampling, the lowering is stopped, the water in the water inlet pipe 202 inevitably remains for the first sampling due to the fact that the last sampling is performed, in order to ensure the purity of the sampling during the second sampling, the pump is controlled again to start working, the separating disk 2011 moves upwards again, the baffle 206 rotates ninety degrees again, so that the second sampling water is introduced into the inside of the water inlet pipe 202, the last sampling water remaining in the inside of the water inlet pipe 202 is washed by the second sampling water and collected by the collecting pipe 309, and as the wastewater treatment, after washing for one to two minutes, the servo motor 303 is controlled again to start working, so that the connecting disk 307 is rotated by sixty degrees again, so that the other sampling pipe 308 is rotated to the position right below the water outlet of the water inlet pipe 202, and then the second sampling is completed, during the rotation of the connecting disk 307, a small amount of water flowing out of the water inlet pipe 202 is adhered to the upper surface of the connecting disk 307, so that in order to prevent the mixing of different sampling water, the water enters into the different sampling pipes 308, and then the water adhered to the upper surface of the connecting disk 307 is scraped by the baffle plate 302, so that when the connecting disk 307 is rotated, the sampling water adhered to the surface of the connecting disk 307 is cleaned in turn, further, the problem of mixing of sampling water is prevented, and the purity of sampling is ensured.
After the stratified sampling is completed, the equipment is lifted and returns to the ground, the equipment is taken down from an external rope, then the spiral cover 5 is manually unscrewed, sampling water is taken out through the external pipeline of the sampling pipe 308 and the waste discharge pipe 3011, and meanwhile, the waste discharge pipe 3011 and the collecting pipe 309 are in a communicating state, so that waste water is discharged from the waste discharge pipe 3011.
Although embodiments of the present invention have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the claims and their equivalents.
Claims (8)
1. The layered groundwater sampling device comprises a protective shell (1), weighting blocks (2), a connecting frame (3), slings (4) and a spiral cover (5), wherein the two weighting blocks (2) which are symmetrical in front and back are arranged on the outer surface of the protective shell (1), the connecting frame (3) is arranged on the upper side of the protective shell (1), and the slings (4) are connected to the connecting frame (3);
The upper side of the protective shell (1) is movably connected with a spiral cover (5);
The underground water sampling device is characterized by further comprising a layered sampling assembly and a conversion assembly, wherein the inner side of the protective shell (1) is provided with the layered sampling assembly for layered sampling of underground water, the inner side of the protective shell (1) is provided with the conversion assembly for conversion and collection of different sampled water and prevention of mixing, and the conversion assembly is contacted with the lower surface of the spiral cover (5);
The stratified sampling assembly comprises a heat insulation plate (201), a water inlet pipe (202), a connecting pipe (203), filter cotton (204), an injection head (205), a baffle plate (206), a sealing ring (207), a connecting shaft (208), a first bevel gear (209), an air cylinder (2010), a separation disc (2011), a round rod (2012), an elastic piece (2013), an air pipe (2014), a rack (2015), a first flat gear (2016) and a second bevel gear (2017), wherein the heat insulation plate (201) is fixedly connected to the inner side of a protective housing (1), the water inlet pipe (202) is arranged on the protective housing (1), the water inlet pipe (202) penetrates through the heat insulation plate (201), the air cylinder (2010) is fixedly connected to the inner side upper part of the heat insulation plate (201), the connecting pipe (203) is communicated between the air cylinder (2010) and the water inlet pipe (202), the filter cotton (204) is arranged on the inner side right part of the water inlet pipe (202), the injection head (205) is arranged on the inner side right part of the water inlet pipe (202), the baffle plate (206) is arranged on the inner side of the filter cotton (204), the baffle plate (206) is arranged on the inner side of the filter cotton, the baffle plate (205) is arranged on the inner side of the filter cotton, the inner side of the filter head (205) is located on the left side of the filter cotton, the sealing ring (207) is positioned on the outer side of the baffle (206), a connecting shaft (208) is fixedly connected to the baffle (206), the connecting shaft (208) is rotationally connected with the water inlet pipe (202), a first bevel gear (209) is fixedly connected to the upper side of the connecting shaft (208), an elastic piece (2013) is fixedly connected to the inner side of the air cylinder (2010), a round rod (2012) is slidingly connected to the inner side of the air cylinder (2010) and positioned on the outer side of the elastic piece (2013), a separation disc (2011) is fixedly connected to the lower end of the elastic piece (2013), the separation disc (2011) is fixedly connected with the round rod (2012), an air pipe (2014) is communicated with the upper side of the air cylinder (2010), a rack (2015) is fixedly connected to the upper side of the round rod (2012), a first flat gear (2016) is rotationally connected to the inner side of the protective housing (1) through a connecting rod, a second bevel gear (2017) is rotationally connected to the inner side of the protective housing (1) through the connecting rod, and the second bevel gear (2017) is meshed with the first bevel gear (209).
The conversion assembly comprises a fixed ring (301), a baffle plate (302), a servo motor (303), a second flat gear (304), a hollow rod (305), a third flat gear (306), a connecting disc (307), a sampling tube (308), a collecting tube (309), a sampling tube (3010), a waste discharging tube (3011) and a limiting plate (3012), wherein the middle part of the inner side of the heat insulation plate (201) is fixedly connected with the fixed ring (301), the baffle plate (302) is fixedly connected with the inner side of the fixed ring (301), the hollow rod (305) is rotatably connected to the fixed ring (301), the servo motor (303) is arranged on the inner side of the heat insulation plate (201), the second flat gear (304) is fixedly connected to an output shaft of the servo motor (303), the third flat gear (306) is fixedly connected to the hollow rod (305), the third flat gear (306) is meshed with the second flat gear (304), the connecting disc (307) is fixedly connected to the lower side of the hollow rod (305), three annularly arranged collecting tubes (309) are fixedly connected to the lower surface of the connecting disc (307), the upper part of the inner side of the heat insulation plate (201) is fixedly connected with the limiting plate (2), the upper part of the inner side of the heat insulation plate (201) is fixedly connected with the hollow tube (3012), the upper part of the inner side of the hollow tube (308) is fixedly arranged between the three annularly arranged, and the waste discharging tube (3010) and the lower surface is fixedly arranged on the central point of the connecting tube (3010 Three sample discharging pipes (3010) are contacted with the lower surfaces of the waste discharging pipes (3011) and the screw cap (5).
2. A stratified groundwater sampling device according to claim 1, wherein the weighting blocks (2) are arranged in the form of cambered surfaces.
3. A stratified groundwater sampling device according to claim 1, wherein the injector head (205) is arranged in the shape of a circular table and has a plurality of through holes on the right side.
4. A stratified groundwater sampling device according to claim 1, wherein the dividing plate (2011) divides the inflator (2010) into upper and lower spaces which are not communicated with each other.
5. A stratified groundwater sampling device according to claim 1, wherein the connection between the connection pipe (203) and the water inlet pipe (202) is between the injector head (205) and the baffle (206).
6. A stratified groundwater sampling device according to claim 5, wherein the baffle plate (302) is provided with a circular hole corresponding to the water inlet pipe (202).
7. A stratified groundwater sampling device according to claim 6, wherein the connection plate (307) is provided with a sampling water inlet and a cleaning wastewater inlet.
8. A stratified groundwater sampling device according to claim 7, wherein the pipe of the drainage pipe (3010) below the connection plate (307) is provided as a hose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211579083.5A CN115876529B (en) | 2022-12-08 | 2022-12-08 | A stratified groundwater sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211579083.5A CN115876529B (en) | 2022-12-08 | 2022-12-08 | A stratified groundwater sampling device |
Publications (2)
| Publication Number | Publication Date |
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| CN115876529A CN115876529A (en) | 2023-03-31 |
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