CN115979733B - Groundwater sampling equipment for groundwater investigation and use method - Google Patents
Groundwater sampling equipment for groundwater investigation and use method Download PDFInfo
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- CN115979733B CN115979733B CN202310037256.9A CN202310037256A CN115979733B CN 115979733 B CN115979733 B CN 115979733B CN 202310037256 A CN202310037256 A CN 202310037256A CN 115979733 B CN115979733 B CN 115979733B
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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
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Abstract
The invention relates to the technical field of groundwater sampling, in particular to groundwater sampling equipment for groundwater investigation and a using method thereof. The underground water sampling device comprises a lifting device and a plurality of sampling mechanisms arranged on the periphery of the lifting device, wherein the sampling mechanisms are used for collecting underground water, a control mechanism is arranged on the lifting device and rotates on the lifting device, and the upper end and the lower end of the sampling mechanisms are controlled to be closed in the rotating process of the control mechanism, so that the underground water is sealed inside the sampling mechanisms. According to the invention, the control mechanism sequentially controls the sampling mechanisms to be closed through the rotation of the control mechanism, so that a plurality of sampling mechanisms are used for separately sampling the underground water, repeated sampling for a plurality of times during the underground water sampling is avoided, the underground water sampling speed of workers is increased, meanwhile, the sampling is only required to be operated once, the possibility that the underground water becomes turbid due to the movement of the device in the underground water is reduced, and the underground water sampling accuracy is improved.
Description
Technical Field
The invention relates to the technical field of groundwater sampling, in particular to groundwater sampling equipment for groundwater investigation and a using method thereof.
Background
When the quality of underground water is investigated, the quality of the underground water is detected to obtain the content of substances in the underground water, and when the underground water is obtained, the underground water is required to be sampled, a sampling device is placed into the underground water during sampling, so that the underground water enters the sampling device, and after the sampling is completed, the sampling device is taken out of the underground water, so that a sample of the underground water is obtained.
But because the depth of groundwater is different, the content of the substances that are rich in is also different, so the different depths of groundwater need to be collected to this improves the degree of accuracy that detects the content of the substances of groundwater of different depths, and in order to obtain groundwater of different depths, needs the workman to take a sample many times, and the sample is comparatively troublesome, and in the in-process of taking a sample, sampling device constantly removes in groundwater, becomes turbid with groundwater easily, and then leads to detecting the inaccurate condition to appear.
Disclosure of Invention
The invention aims to provide groundwater sampling equipment for groundwater investigation and a using method thereof, so as to solve the problems in the background art.
In order to achieve the above object, one of the purposes of the present invention is to provide an underground water sampling device for underground water survey, which comprises a pulling device and a plurality of sampling mechanisms arranged around the pulling device, wherein the pulling device drives the sampling mechanisms to move to a proper position in underground water, the sampling mechanisms collect underground water, the pulling device is provided with a control mechanism, the control mechanism rotates on the pulling device, the upper end and the lower end of the sampling mechanisms are controlled to be closed in the process of the rotation of the control mechanism, so that underground water is sealed in the sampling mechanisms, when the control mechanism controls the two ends of the sampling mechanisms to be closed, the upper end and the lower end of the sampling mechanisms are simultaneously closed, the control mechanism controls the sampling mechanisms to be sequentially closed, and after the sampling mechanisms are controlled to be closed by the control mechanism, the inside and the outside of the sampling mechanisms are disconnected.
As the further improvement of this technical scheme, sampling mechanism includes the sampling tube, the pulling device includes the lifting rod, the sampling tube is fixed in the position that the lifting rod is close to the bottom, and a plurality of the sampling tube surrounds the lifting rod inside, one side that the sampling tube upper end is close to the lifting rod articulates there is the upper cover, one side that the lifting rod was kept away from to the sampling tube bottom articulates there is the lower cover, upper cover the lower extreme, the upper end of sampling tube respectively.
As the further improvement of this technical scheme, the sampling tube is close to the lateral wall of lower cover, upper cover and is fixed with the dog of outside slope, the dog blocks the angle of lower cover, upper cover upset, just lower cover, upper cover and sampling tube articulated position all are provided with torsion spring, and torsion spring drives lower cover, upper cover and does the motion that keeps away from each other, makes the lateral wall of lower cover, upper cover and one side laminating of dog.
As a further improvement of the technical scheme, one end, close to the lifting rod, of the upper side of the lower cover is hinged with a pull rod, the upper cover is provided with a through hole, one end of the pull rod penetrates through the through hole and extends out, and when the upper cover rotates, one end of the pull rod rotates in the through hole.
As a further improvement of the technical scheme, one end of the through hole, which is far away from the lifting rod, is hinged with a limiting frame, the lifting rod is arranged in the limiting frame in a sliding manner, a baffle is inserted into one side of the limiting frame in a sliding manner, a clamping strip is arranged on one side of the lifting rod, which is close to the baffle, a clamping tooth is arranged on one side of the baffle, which is close to the lifting rod, the baffle is connected with the limiting frame through a spring, the spring pulls the baffle to be close to the lifting rod, so that the clamping tooth and the clamping strip are clamped, and the downward movement of the lifting rod is limited when the clamping tooth and the clamping strip are clamped.
As a further improvement of the technical scheme, two partition plates are fixed in the sampling tube, the two partition plates divide the inside of the sampling tube into two liquid containing cavities and a rod sliding cavity, and the pull rod is arranged in the rod sliding cavity in a sliding mode.
As a further improvement of the technical scheme, the control mechanism comprises a rotating block which is arranged on the lifting rod in a rotating way, an outer protruding block is fixed on one side of the rotating block, an arc-shaped lower pressing block is fixed at the bottom of the outer protruding block, and the rotating block drives the lower pressing block to squeeze the upper cover when rotating, so that the upper cover rotates in the direction close to the sampling tube, and the upper cover seals the upper end of the sampling tube.
As the further improvement of this technical scheme, horizontal spout has been seted up on the lateral wall that the rotating block is close to the bottom, spiral ascending oblique arc groove has been seted up to one side of external protrusion piece, the one end in oblique arc groove is connected with the one end of horizontal spout, the upper end rotation of pull rod is connected with the connecting block, the one end slip setting of connecting block is in horizontal spout and oblique arc groove, and when the connecting block moved to oblique arc groove, rotatory horizontal spout drove the pull rod and upwards remove, makes the pull rod upwards drag the lower cover, makes the lower cover with the bottom shutoff of sampling tube on.
As a further improvement of the technical scheme, the upper end of the rotating block is fixedly provided with a rotating pipe, the rotating pipe is sleeved on the lifting rod, and when groundwater sampling is needed, the rotating pipe is rotated to enable the control mechanism to control the lower cover and the upper cover to plug the two ends of the sampling pipe.
The second object of the present invention is to provide a method for operating the groundwater sampling device for groundwater investigation including any one of the above, comprising the following steps:
s1, enabling a sampling mechanism to move to a designated depth of underground water by controlling the depth of the lifting device extending into the water, enabling the underground water to flow upwards through a sampling pipe in the process that the sampling mechanism moves downwards in the underground water, and rotating a rotating pipe to enable the rotating pipe to drive a rotating block to rotate on a lifting rod when the underground water needs to be collected;
s2, in the process that the rotating block rotates, the connecting block slides along the track of the horizontal groove in the horizontal sliding groove, when the connecting block slides into the inclined arc groove, the connecting block rotates and ascends along the track of the inclined arc groove, and the ascending connecting block drives the pull rod to move upwards, so that the lower cover is pulled by the pull rod to turn upwards;
s3, the lower pressing block is contacted with one side of the upper cover, the upper cover is covered on the sampling tube through extrusion of the lower pressing block on the upper cover, the baffle plate fixes the position of the pull rod, and when the lower cover and the upper cover are closely attached to the sampling tube, the connecting block is separated from the inclined arc groove;
s4, adjusting the depth of the lifting device in the groundwater, and continuously rotating the rotating pipe to enable the device to collect groundwater with different depths.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the underground water sampling equipment for underground water investigation and the application method, the control mechanism is rotated to enable the control mechanism to sequentially control the sampling mechanisms to be closed, so that a plurality of sampling mechanisms are used for sampling underground water separately, repeated sampling for multiple times during underground water sampling is omitted, the speed of workers for sampling underground water is accelerated, meanwhile, the sampling is only required to be performed once, the possibility that the underground water becomes turbid due to movement of the device in the underground water is reduced, and the accuracy of underground water sampling is improved.
2. In the underground water sampling equipment for underground water investigation and the use method, when the sampling mechanism samples underground water, the control mechanism controls the lower cover and the upper cover to simultaneously seal the upper end and the lower end of the sampling tube, so that the condition that water in the sampling tube flows when one end of the sampling tube is closed is avoided, the accuracy of underground water sampling is ensured, and the accuracy of underground water detection is ensured.
3. In the underground water sampling equipment for underground water investigation and the use method, when the device moves downwards in underground water, the underground water directly flows to the upper part through the inside of the sampling pipe, so that the obstruction of the device to the underground water is reduced, the condition that the water flow of the underground water is disordered and flows can not occur due to the movement of the device is avoided, the device is convenient to sample the underground water, and the accuracy of underground water sampling is improved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic diagram showing a combination structure of a pulling device and a sampling mechanism according to the present invention;
FIG. 3 is a schematic cross-sectional view of the apparatus of the present invention;
FIG. 4 is a schematic view of a closed structure of a sampling mechanism according to the present invention;
FIG. 5 is a schematic view of the open structure of the sampling mechanism of the present invention;
FIG. 6 is a schematic cross-sectional view of the sampling mechanism of the present invention with the sampling mechanism open;
FIG. 7 is a schematic view of a portion of a sampling mechanism according to the present invention;
FIG. 8 is a schematic diagram of a control mechanism according to the present invention;
fig. 9 is a schematic diagram of the flow direction of groundwater sampled by the device and the movement of the device.
The meaning of each reference sign in the figure is:
1. a lifting device; 11. a lifting rod; 12. a baffle rack;
2. a sampling mechanism; 21. a sampling tube; 22. a lower cover; 23. an upper cover; 24. a pull rod; 25. a through port; 26. a partition plate; 27. a connecting block; 28. a stop block; 29. a limiting frame; 291. a baffle;
3. a control mechanism; 31. a rotating block; 32. an outer bump; 33. a horizontal chute; 34. an oblique arc groove; 35. pressing the block; 36. the tube is rotated.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations 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 apparatus 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.
Example 1
In order to obtain groundwater of different depths, multiple sampling needs to be performed by workers, sampling is troublesome, and in the process of sampling, the sampling device continuously moves in the groundwater, the groundwater is easy to become turbid, and inaccurate detection is caused, in order to avoid multiple sampling by workers and turbidity of the groundwater caused by the workers in multiple sampling, please refer to fig. 1-3, one of the purposes of this embodiment is to provide a groundwater sampling device for groundwater investigation, which comprises a lifting device 1 and a plurality of sampling mechanisms 2 arranged around the lifting device 1, the lifting device 1 drives the sampling mechanisms 2 to move to suitable positions in the groundwater, the sampling mechanisms 2 collect the groundwater, wherein in order to facilitate controlling the groundwater of different depths to be collected by the device, a control mechanism 3 is arranged on the lifting device 1, the control mechanism 3 rotates on the lifting device 1, and in the process of controlling the closing of the upper end and the lower end of the sampling mechanism 2 in the rotation of the control mechanism 3, so that the groundwater is sealed inside the sampling mechanism 2, and thus the groundwater of the depth is obtained.
In order to prevent the underground water from impacting the underground water in the sampling mechanism 2 due to non-uniform closing of the upper end and the lower end when the control mechanism 3 controls the upper end and the lower end of the sampling mechanism 2 to be closed, and reduce the accuracy of underground water sampling, the upper end and the lower end of the sampling mechanism 2 are simultaneously closed when the control mechanism 3 controls the two ends of the sampling mechanism 2 to be closed, so that the problem that the underground water impacts the underground water in the sampling mechanism 2 is avoided, the accuracy of underground water collection is improved, meanwhile, after the sampling mechanism 2 is controlled to be closed by the control mechanism 3, the inside of the sampling mechanism 2 is disconnected from the outside, and in order to reduce the repeated sampling of workers, the control mechanism 3 controls a plurality of sampling mechanisms 2 to be sequentially closed, so that the device is convenient for separately collecting the underground water with different depths, the trouble of repeated sampling is avoided, and meanwhile, the condition that the underground water is stirred and turbid by the device is also avoided after the repeated sampling times are reduced, and the accuracy of underground water collection of the device is improved.
In order to refine the structure of the device to perform the above-described functions, referring to fig. 1 to 9, the sampling mechanism 2 includes sampling tubes 21, the pulling device 1 includes a pulling rod 11, the sampling tubes 21 are fixed at positions near the bottom of the pulling rod 11, and a plurality of sampling tubes 21 enclose the pulling rod 11 inside, while a plurality of sampling tubes 21 are arrayed in a ring shape with respect to the central axis of the pulling rod 11, and when groundwater is required, a worker holds the pulling rod 11 and feeds one end of the pulling rod 11 with the sampling tubes 21 into groundwater so that groundwater can enter the sampling tubes 21, referring to the direction of a dotted arrow in fig. 9, the groundwater passes through the sampling tubes 21.
Meanwhile, in order to facilitate the collection and retention of the groundwater in the sampling tube 21, an upper cover 23 is hinged to one side, close to the lifting rod 11, of the upper end of the sampling tube 21, a lower cover 22 is hinged to one side, far away from the lifting rod 11, of the bottom end of the sampling tube 21, the lower end and the upper end of the sampling tube 21 are covered by the lower cover 22 and the upper cover 23 respectively, after the upper and lower ends of the sampling tube 21 are covered by the lower cover 22 and the upper cover 23, the groundwater in the sampling tube 21 is blocked by the lower cover 22 and the upper cover 23, so that the sampling mechanism 2 can collect the groundwater, and meanwhile, in order to improve the tightness among the lower cover 22, the upper cover 23 and the sampling tube 21, rubber rings are arranged on one side of the lower cover 22 and the upper cover 23, and when the end of the sampling tube 21 is covered by the lower cover 22 and the upper cover 23, the sealing effect among the lower cover 22, the upper cover 23 and the sampling tube 21 is improved, and the groundwater is prevented from flowing out of the sampling tube 21 through the rubber rings.
In order to enable the lower cover 22 and the upper cover 23 to control the control mechanism 3 to turn over, one end, close to the lifting rod 11, of the upper side of the lower cover 22 is hinged with a pull rod 24, a through hole 25 is formed in the upper cover 23, one end of the pull rod 24 penetrates through the through hole 25 and extends out, when the upper cover 23 rotates, one end of the pull rod 24 rotates in the through hole 25, in order to limit the position of the pull rod 24 in the through hole 25, one end, far away from the lifting rod 11, of the through hole 25 is hinged with a limiting frame 29, the pull rod 24 is slidably arranged in the limiting frame 29, one side of the limiting frame 29 is slidably inserted with a baffle 291, the baffle 291 is matched with the limiting frame 29 to enclose the pull rod 24 in the middle, and when the upper cover 23 moves, the limiting frame 29 and the baffle 291 limit the rotating position of one end of the pull rod 24, so that the pull rod 24 rotates along with the upper cover 23.
Meanwhile, in order to ensure that the lower cover 22 and the upper cover 23 are not separated from the sampling tube 21 after the lower cover 22 and the upper cover 23 cover the two ends of the sampling tube 21, groundwater sealed in the sampling tube 21 is prevented from flowing out, a clamping strip is arranged on one side of the pull rod 24 close to the baffle 291, a clamping tooth is arranged on one side of the baffle 291 close to the pull rod 24, the baffle 291 and the limiting frame 29 are connected through a spring, the baffle 291 is pulled by the spring to be close to the pull rod 24, the clamping tooth and the clamping strip are clamped, the clamping tooth and the clamping strip are formed by a plurality of mitsubnets, and when the pull rod 24 moves upwards, the clamping tooth and the clamping strip normally slide, when the pull rod 24 moves downwards, the clamping tooth and the clamping strip clamp downwards, so that the pull rod 24 does not move downwards, the clamped and positioned pull rod 24 presses the upper cover 23, and then the lower cover 22 is pulled by the pull rod 24, and the lower cover 22 and the upper cover 23 are tightly attached to the two ends 21 of the sampling tube.
Because of considering that the through hole 25 is penetrating, after the upper cover 23 covers one end of the sampling tube 21, the inside of the sampling tube 21 still can be communicated with the outside through the through hole 25, when the device moves, groundwater can flow into the sampling tube 21 through the through hole 25, accuracy of groundwater collection in the sampling tube 21 is affected, in order to guarantee the effect of the sampling tube 21 on groundwater collection, two partition plates 26 are fixed in the inside of the sampling tube 21, the inside of the sampling tube 21 is divided into two liquid containing cavities and a rod sliding cavity by the two partition plates 26, the through hole 25 is communicated with the rod sliding cavity, the pull rod 24 is arranged in the rod sliding cavity in a sliding mode, and therefore when the upper cover 23 covers the sampling tube 21, the upper cover 23 seals the two liquid containing cavities, and liquid in the sampling tube 21 is sealed.
In order to make the sampling mechanism 2 actively sample after moving to the depth specified by the groundwater, the structure of the control mechanism 3 is thinned: the control mechanism 3 comprises a rotating block 31 which is rotatably arranged on the lifting rod 11, an outer protruding block 32 is fixed on one side of the rotating block 31, the outer protruding block 32 protrudes outwards, a lower pressing block 35 which is arc-shaped is fixed at the bottom of the outer protruding block 32, the rotating block 31 drives the lower pressing block 35 to rotate when rotating, the rotating lower pressing block 35 extrudes the upper cover 23 through an arc which continuously extends downwards, the upper cover 23 rotates towards a direction close to the sampling tube 21, and the upper cover 23 seals the upper end of the sampling tube 21.
Meanwhile, a horizontal chute 33 is formed in the side wall, close to the bottom, of the rotating block 31, a spiral upward inclined arc groove 34 is formed in one side of the outer protruding block 32, one end of the inclined arc groove 34 is connected with one end of the horizontal chute 33, the upper end of the pull rod 24 is rotationally connected with the connecting block 27, one end of the connecting block 27 is slidably arranged in the horizontal chute 33 and the inclined arc groove 34, when the rotating block 31 rotates, referring to the solid arrow direction in fig. 9, when the connecting block 27 moves into the inclined arc groove 34, the connecting block 27 moves upwards along the track of the inclined arc groove 34, so that the horizontal chute 33 drives the pull rod 24 to move upwards, the lower cover 22 is pulled upwards by the pull rod 24, and the bottom of the sampling tube 21 is plugged by the lower cover 22.
Considering that when the lower cover 22 and the upper cover 23 are separated to block the sampling tube 21, flowing groundwater can change groundwater collected in the sampling tube 21, in order to ensure accurate groundwater sampling collected in the sampling tube 21, the outer protrusion 32 drives the pull rod 24 to move upwards, the lower pressing block 35 drives the sampling tube 21 to move downwards, and when the pull rod 24 pulls the lower cover 22 to block the bottom of the sampling tube 21, the upper cover 23 blocks the upper end of the sampling tube 21, so that both ends of the sampling tube 21 are blocked at the same time, and accuracy of groundwater sampling is achieved.
After one of the sampling mechanisms 2 is collected, the staff adjusts the position of the sampling mechanism 2, so that other sampling mechanisms 2 which do not collect groundwater collect other positions of groundwater, and continuously rotates the rotating block 31 when the groundwater needs to be collected, so that the control mechanism 3 controls the lower cover 22 and the upper cover 23 on the other sampling mechanism 2 to seal the two ends of the sampling tube 21.
In order to facilitate the control of the position of the sampling mechanism 2 in the groundwater sampling by the staff and the control of the sampling mechanism 2 in the groundwater sampling, a rotary pipe 36 is fixed at the upper end of the rotary block 31, the rotary pipe 36 is sleeved on the lifting rod 11, and when the groundwater sampling is required, the rotary pipe 36 is rotated to enable the control mechanism 3 to control the lower cover 22 and the upper cover 23 to seal the two ends of the sampling pipe 21.
In order to enable the pull rod 24 to drive by the control mechanism 3 to move, the pull rod 24 can stably drive the lower cover 22 and the upper cover 23 to be attached to the two ends of the sampling tube 21, the outer side walls of the lower cover 22 and the upper cover 23 are fixedly provided with outwards inclined stop blocks 28, the stop blocks 28 stop the angle of overturning the lower cover 22 and the upper cover 23, the lower cover 22 and the upper cover 23 are enabled to be attached to one side of the stop blocks 28 under the maximum overturning angle, the lower cover 22 and the upper cover 23 are still right above the two ends of the sampling tube 21, so that the lower cover 22 and the upper cover 23 can conveniently plug the two ends of the sampling tube 21 when the pull rod 24 is pulled to rotate, simultaneously, in order to enable groundwater to conveniently enter the sampling tube 21 when the two ends of the lower cover 22 and the upper cover 23 are not plugged, torsion springs are arranged at the hinged positions of the lower cover 22, the upper cover 23 and the sampling tube 21, the torsion springs drive the lower cover 22 and the upper cover 23 to move away from each other, the side walls of the lower cover 22 and the upper cover 23 are attached to one side of the stop blocks 28, the lower cover 22 and the two ends of the upper cover 23 are enabled to be left behind, the upper cover 23 are enabled to be attached to be left behind, the front the two ends of the sampling tube 21 are enabled to be convenient, the groundwater can conveniently enter the sampling tube 21, and the underground water can normally flow into the underground water can be prevented from flowing into the underground water through the sampling tube 21, and the underground water can be directly conveniently and the underground water device is prevented from flowing under the condition when the underground water is formed to the underground water.
In order to prevent the lower cover 22 from being unable to be normally closed when the lower cover 22 contacts the ground, the bottom of the lifting rod 11 is provided with the baffle frame 12, the baffle frame 12 is used for protecting the lower cover 22, and meanwhile, in the sampling process of the device, the baffle frame 12 can guide the underground impurities to the periphery, so that the impurities are prevented from obstructing the closing of the lower cover 22 and the upper cover 23.
The second object of the present invention is to provide a method for operating the groundwater sampling device for groundwater investigation, comprising the following steps:
s1, controlling the depth of the lifting device 1 extending into the water to enable the sampling mechanism 2 to move to the appointed depth of the groundwater, enabling the groundwater to flow upwards through the sampling tube 21 in the process that the sampling mechanism 2 moves downwards in the groundwater, and rotating the rotating tube 36 when the groundwater needs to be collected, so that the rotating tube 36 drives the rotating block 31 to rotate on the lifting rod 11;
s2, in the process of rotating the rotating block 31, the connecting block 27 slides along the track of the horizontal groove 33 in the horizontal sliding groove 33, when the connecting block 27 slides into the inclined arc groove 34, the connecting block 27 rotates along the track of the inclined arc groove 34 and rises, and the rising connecting block 27 drives the pull rod 24 to move upwards, so that the pull rod 24 pulls the lower cover 22 to turn upwards;
s3, a lower pressing block 35 is contacted with one side of the upper cover 23, the upper cover 23 is covered on the sampling tube 21 by pressing the upper cover 23 through the lower pressing block 35, a baffle 291 is used for fixing the position of a pull rod 24, and when the lower cover 22 and the upper cover 23 are closely attached to the sampling tube 21, a connecting block 27 is separated from an inclined arc groove 34;
s4, adjusting the depth of the lifting device 1 in the groundwater, and continuously rotating the rotating pipe 36 to enable the device to collect groundwater with different depths.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present invention, and are not intended to limit the invention, and that various changes and modifications may be made therein without departing from the spirit and scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (3)
1. Groundwater sampling equipment for groundwater investigation, including carrying and drawing device (1) and setting up a plurality of sampling mechanism (2) around carrying and drawing device (1), carry and draw device (1) and drive sampling mechanism (2) and remove suitable position in the groundwater, sampling mechanism (2) gather its characterized in that to the groundwater: the lifting device (1) is provided with a control mechanism (3), the control mechanism (3) rotates on the lifting device (1), the upper end and the lower end of the sampling mechanism (2) are controlled to be closed in the rotating process of the control mechanism (3), so that groundwater is sealed inside the sampling mechanism (2), when the control mechanism (3) controls the two ends of the sampling mechanism (2) to be closed, the upper end and the lower end of the sampling mechanism (2) are simultaneously closed, the control mechanism (3) controls the sampling mechanisms (2) to be sequentially closed, and after the sampling mechanism (2) is controlled to be closed by the control mechanism (3), the inside of the sampling mechanism (2) is disconnected from the outside;
the sampling mechanism (2) comprises a sampling tube (21), the lifting device (1) comprises a lifting rod (11), the sampling tube (21) is fixed at the position, close to the bottom, of the lifting rod (11), the lifting rod (11) is surrounded by a plurality of sampling tubes (21), an upper cover (23) is hinged to one side, close to the lifting rod (11), of the upper end of each sampling tube (21), a lower cover (22) is hinged to one side, far away from the lifting rod (11), of the bottom end of each sampling tube (21), and the lower cover (22) and the upper cover (23) cover the lower end and the upper end of each sampling tube (21) respectively;
one end, close to the lifting rod (11), of the upper side of the lower cover (22) is hinged with a pull rod (24), a through hole (25) is formed in the upper cover (23), one end of the pull rod (24) penetrates through the through hole (25) and extends out, and when the upper cover (23) rotates, one end of the pull rod (24) rotates in the through hole (25);
one end of the through hole (25) far away from the lifting rod (11) is hinged with a limiting frame (29), the pull rod (24) is arranged in the limiting frame (29) in a sliding mode, a baffle (291) is inserted into one side of the limiting frame (29) in a sliding mode, a clamping strip is arranged on one side, close to the baffle (291), of the pull rod (24), of the baffle (291), clamping teeth are arranged on one side, close to the pull rod (24), of the baffle (291) and the limiting frame (29) are connected through springs, the springs pull the baffle (291) to be close to the pull rod (24), and accordingly clamping teeth and clamping strips are clamped, and downward movement of the pull rod (24) is limited when the clamping teeth and the clamping strips are clamped;
two partition boards (26) are fixed in the sampling tube (21), the two partition boards (26) divide the inside of the sampling tube (21) into two liquid containing cavities and a rod sliding cavity, and a pull rod (24) is arranged in the rod sliding cavity in a sliding way;
the control mechanism (3) comprises a rotating block (31) which is rotatably arranged on the lifting rod (11), an outer protruding block (32) is fixed on one side of the rotating block (31), an arc-shaped lower pressing block (35) is fixed at the bottom of the outer protruding block (32), and the rotating block (31) drives the lower pressing block (35) to squeeze the upper cover (23) when rotating, so that the upper cover (23) rotates towards a direction close to the sampling tube (21), and the upper cover (23) seals the upper end of the sampling tube (21);
a horizontal chute (33) is formed in the side wall, close to the bottom, of the rotating block (31), a spiral upward inclined arc groove (34) is formed in one side of the outer protruding block (32), one end of the inclined arc groove (34) is connected with one end of the horizontal chute (33), the upper end of the pull rod (24) is rotationally connected with a connecting block (27), one end of the connecting block (27) is slidably arranged in the horizontal chute (33) and the inclined arc groove (34), and when the connecting block (27) moves into the inclined arc groove (34), the rotating horizontal chute (33) drives the pull rod (24) to move upwards, so that the pull rod (24) pulls the lower cover (22) upwards, and the lower cover (22) seals the bottom of the sampling tube (21);
the upper end of the rotating block (31) is fixedly provided with a rotating pipe (36), the rotating pipe (36) is sleeved on the lifting rod (11), and when groundwater sampling is needed, the rotating pipe (36) is rotated to enable the control mechanism (3) to control the lower cover (22) and the upper cover (23) to seal the two ends of the sampling pipe (21).
2. The groundwater sampling device for groundwater investigation according to claim 1, wherein: the sampling tube (21) is close to the outer side wall of lower cover (22), upper cover (23) and is fixed with outside inclined dog (28), dog (28) stop the angle of lower cover (22), upper cover (23) upset, just lower cover (22), upper cover (23) and sampling tube (21) articulated position all are provided with torsion spring, and torsion spring drives lower cover (22), upper cover (23) and is the motion of keeping away from each other, makes the lateral wall of lower cover (22), upper cover (23) and one side laminating of dog (28).
3. A method of operating a groundwater sampling device for groundwater investigation including any of claims 1-2, characterized in that: the method comprises the following steps:
s1, controlling the depth of the lifting device (1) extending into the water to enable the sampling mechanism (2) to move to the appointed depth of the groundwater, enabling the groundwater to flow upwards through the sampling tube (21) in the process that the sampling mechanism (2) moves downwards in the groundwater, and rotating the rotating tube (36) when the groundwater needs to be collected, so that the rotating tube (36) drives the rotating block (31) to rotate on the lifting rod (11);
s2, in the process of rotating the rotating block (31), the connecting block (27) slides in the horizontal sliding groove (33) along the track of the horizontal sliding groove (33), when the connecting block (27) slides into the inclined arc groove (34), the connecting block (27) rotates and ascends along the track of the inclined arc groove (34), and the ascending connecting block (27) drives the pull rod (24) to move upwards, so that the pull rod (24) pulls the lower cover (22) to overturn upwards;
s3, a lower pressing block (35) is in contact with one side of the upper cover (23), the upper cover (23) is covered on the sampling tube (21) through the extrusion of the lower pressing block (35) to the upper cover (23), a baffle (291) is used for fixing the position of a pull rod (24), and when the lower cover (22) and the upper cover (23) are tightly attached to the sampling tube (21), a connecting block (27) is separated from an inclined arc groove (34);
s4, adjusting the depth of the lifting device (1) in the groundwater, and continuously rotating the rotary pipe (36) to enable the device to collect groundwater with different depths.
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