An underground water level dynamic monitoring and layered water sample rapid collection device

Abstract

The present invention discloses a device for dynamic monitoring of groundwater and rapid collection of stratified water samples, which comprises: an upper seat, to which a sling is connected; a lower seat, which is fixedly connected to the upper seat by a plurality of support columns, a monitoring module is fixedly installed on the bottom surface of the lower seat, and a transparent cover capable of wrapping the monitoring module is hermetically connected to the edge of the bottom surface of the lower seat; a support plate, which is arranged below the upper seat and fixedly connected to each support column; a ring shell, which is hermetically connected between the support plate and the upper seat, and an inner built-in frame is fixed in the ring shell. In the device of the present invention, the opening and closing driving mechanism can drive each plugging mechanism to perform synchronous opening and closing actions, so that the sampling part can obtain water samples at different depths at the same time, avoiding the influence of time difference caused by sampling successively on water quality, and more truly reflecting the water quality stratification condition of groundwater in the vertical direction.

Description

Technical Field

[0001] The present invention specifically relates to the technical field of groundwater sample collection, and more specifically, to a device for dynamic monitoring of groundwater and rapid collection of layered water samples. Background Art

[0002] With the continuous exploitation of natural resources, groundwater faces problems such as over-exploitation and pollution, resulting in frequent ecological problems such as water level decline and water quality deterioration. Therefore, dynamic monitoring and layered water sample collection and analysis of groundwater are carried out to facilitate the subsequent rational development, utilization and protection of groundwater resources.

[0003] Existing water sample collection devices perform layered sampling by setting sampling pipes at different depths to the selected water body monitoring layer to collect water samples at different depths at one time, but they have the following disadvantages:

[0004] 1. The sluice gates of each sampling pipe are independently controlled, and there are certain deviations in the coordinated control of opening and closing, which easily causes the water body of the specified layer to mix with the water bodies of other layers, resulting in large errors in water sample detection;

[0005] 2. Most of the driving sources for opening and closing the sluice gates of each sampling pipe are arranged at the sluice gates, and the wiring or piping is relatively cumbersome. If operating underwater for a long time, there is a certain probability of wire and pipe damage, which will affect the continuous progress of groundwater collection work. Summary of the Invention

[0006] Therefore, the present invention proposes a device for dynamic monitoring of groundwater and rapid collection of layered water samples to solve the problems raised in the above background art.

[0007] To achieve the above object, the present invention provides the following technical solutions: A device for dynamic monitoring of groundwater and rapid collection of layered water samples, which includes:

[0008] An upper seat, to which a suspension cable is connected;

[0009] A lower seat, which is fixedly connected to the upper seat by a plurality of support columns. A monitoring module is fixedly installed on the bottom surface of the lower seat, and a transparent cover capable of wrapping the monitoring module is hermetically connected to the edge of the bottom surface of the lower seat;

[0010] A support plate, which is arranged below the upper seat and fixedly connected to each support column;

[0011] A ring shell, which is hermetically connected between the support plate and the upper seat, and an inner bracket is fixed in the ring shell;

[0012] A sampling cylinder, which is connected between the support plate and the lower seat. Two separated sampling chambers are arranged in the sampling cylinder, and a plugging mechanism is arranged at the outer opening of each sampling chamber;

[0013] and an opening / closing driving mechanism, which can drive each plugging mechanism to synchronously control the opening and closing states of the outer openings of each sampling cavity.

[0014] Furthermore, preferably, the opening / closing driving mechanism includes:

[0015] Two link mechanisms, which are symmetrically installed on the built-in frame;

[0016] A telescopic square tube, which is connected between the active ends of the two link mechanisms. The central position on the front surface of the telescopic square tube is fixedly connected to one end of a driving rod, and the other end of the driving rod is fixedly connected to the driving end of a push cylinder, so that the push cylinder can drive the two link mechanisms to perform relative symmetric motion through the telescopic square tube;

[0017] And two first link rods, which are respectively rotatably installed on the driven ends of the two link mechanisms, and the bottom end of each first link rod can be rotatably connected to a traction rod in the front and rear directions.

[0018] Furthermore, preferably, two support rings are also fixedly installed on each support column, and two bundle tubes are connected between the two support rings;

[0019] The inner diameter of the bundle tube is the same as the outer diameter of the traction rod, so that the traction rod can be slidably inserted into the corresponding bundle tube, and the bottom end of the traction rod extends out.

[0020] Furthermore, preferably, the link mechanism includes:

[0021] A fifth turning handle, one end of which is rotatably connected to the telescopic square tube by a long pin, and the other end of the fifth turning handle is rotatably installed on the inner support;

[0022] A rotating column, one end of which is rotatably installed on the top of the built-in frame, the other end of the rotating column passes through the side wall of the ring shell and extends out, and a fourth turning handle and a third turning handle are respectively fixed on the inner and outer ends of the rotating column;

[0023] And a second link rod, one end of which is rotatably connected to the long pin, and the other end of the second link rod is rotatably connected to the end of the fourth turning handle;

[0024] Wherein, the end of the third turning handle is rotatably connected to the top end of the first link rod.

[0025] Furthermore, preferably, both the fourth turning handle and the third turning handle are inclined downward based on the horizontal plane, and their inclination angles are the same.

[0026] Furthermore, preferably, a sealing tube sleeve is arranged between the perforation of the rotating column and the ring shell.

[0027] Further, as a preference, the plugging mechanism includes:

[0028] A force-bearing frame fixedly connected between the two support columns located in the front;

[0029] A rotating shaft rotatably installed on the force-bearing frame;

[0030] Two first rotating handles symmetrically fixed on the rotating shaft, and the end of each first rotating handle is rotatably connected to a tension rod;

[0031] A second rotating handle fixed on the rotating shaft and located between the two first rotating handles;

[0032] And a gate, the upper and lower ends of which are respectively sealed in the upper and lower sliding grooves at the outer opening of the sampling cavity. When the gate is in the plugging state, there is a sliding space for the gate to slide upward in the upper sliding groove, and the gate is driven by the second rotating handle to perform opening and closing actions.

[0033] Further, as a preference, the top end of the tension rod in the upper plugging mechanism is rotatably connected to the inner side of the traction rod in the front and back directions;

[0034] The top end of the tension rod in the lower plugging mechanism is rotatably connected to the bottom end of the traction rod in the front and back directions.

[0035] Further, as a preference, the bottom of the front of the gate is provided with an inclined section;

[0036] A sliding hole is penetrated through the gate, and an extension rod is slidably fitted in the sliding hole. One end of the extension rod is fixedly connected to one end of a push handle, and the other end of the push handle is rotatably connected to the end of the second rotating handle;

[0037] The other end of the extension rod is fixedly connected to a spring seat, a spring is connected between the spring seat and the gate, and the spring is wound on the side wall of the extension rod.

[0038] Further, as a preference, two connectors are installed on the side wall of the ring shell, and a guiding pipe is communicated between each connector and the two sampling cavities respectively.

[0039] The present invention adopts the above technologies and has the following beneficial effects compared with the existing technologies:

[0040] In the device of the present invention, the opening and closing driving mechanism can drive each plugging mechanism to perform synchronous opening and closing actions, enabling the sampling part to obtain water samples at different depths at the same time, avoiding the influence of time differences caused by sequential sampling on water quality, and more truly reflecting the water quality stratification condition of groundwater in the vertical direction. Moreover, the power source is arranged at the top of the device of the present invention and is not immersed in the water body, eliminating the need for cumbersome wiring work, greatly shortening the installation time of the device, and enabling water body collection work to be carried out more quickly at different monitoring locations, especially suitable for situations where water samples need to be collected temporarily or emergently. Description of the Drawings

[0041] Figure 1 Fig. is a three-dimensional structural schematic diagram of a device for dynamic monitoring of groundwater and rapid collection of stratified water samples;

[0042] Figure 2 is Figure 1 an enlarged schematic view of part A in

[0043] Figure 3 is Figure 1 an enlarged schematic view of part B in

[0044] Figure 4 Fig. is a structural schematic diagram of the plugging mechanism in a device for dynamic monitoring of groundwater and rapid collection of stratified water samples;

[0045] Figure 5 Fig. is a structural schematic diagram of the opening and closing driving mechanism in a device for dynamic monitoring of groundwater and rapid collection of stratified water samples Figure 1 ;

[0046] Figure 6 Fig. is a structural schematic diagram of the opening and closing driving mechanism in a device for dynamic monitoring of groundwater and rapid collection of stratified water samples Figure 2 ;

[0047] Figure 7 Fig. is a rear view structural schematic diagram of a device for dynamic monitoring of groundwater and rapid collection of stratified water samples.

[0048] In the figure: 1, sling; 2, ring shell; 3, bundle tube; 5, transparent cover; 6, lower seat; 7, supporting ring; 8, sampling cylinder; 9, supporting plate; 10, support column; 11, upper seat; 13, traction rod; 14, tension rod; 15, first turning handle; 16, rotating shaft; 17, second turning handle; 19, stress frame; 20, first connecting rod; 21, third turning handle; 22, rotating column; 23, built-in frame; 24, push cylinder; 25, fourth turning handle; 26, telescopic square tube; 27, driving rod; 28, fifth turning handle; 29, second connecting rod; 30, gate; 31, extension rod; 32, push handle; 33, spring seat; 34, spring; 35, joint. Detailed Embodiments

[0049] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0050] Embodiment: Please refer to the attached Figures 1-7 , the present invention provides a technical solution: a device for dynamic monitoring of groundwater and rapid collection of stratified water samples, which includes:

[0051] An upper seat 11, to which a suspension cable 1 is connected and is installed on a crane through the suspension cable 1;

[0052] A lower seat 6, which is fixedly connected to the upper seat 11 by a plurality of support columns 10. A monitoring module is fixedly installed on the bottom surface of the lower seat 6, and a transparent cover 5 that can wrap the monitoring module is hermetically connected to the edge of the bottom surface of the lower seat 6;

[0053] Specifically, the monitoring module can monitor the dynamic state of groundwater in real time. After the groundwater dynamic state is stable, the device of the present invention can be started to take stratified samples of groundwater;

[0054] A support plate 9, which is arranged below the upper seat 11 and is fixedly connected to each support column 10;

[0055] A ring shell 2, which is hermetically connected between the support plate 9 and the upper seat 11, and an inner built-in frame 23 is fixed in the ring shell 2;

[0056] A sampling cylinder 8, which is connected between the support plate 9 and the lower seat 6. Two separated sampling cavities are arranged in the sampling cylinder 8, and a plugging mechanism is arranged at the outer opening of each sampling cavity;

[0057] And an opening and closing driving mechanism, which can drive each plugging mechanism to synchronously control the opening and closing states of the outer openings of each sampling cavity;

[0058] Specifically, the number of sampling cavities is set according to the actual shape of the groundwater area to be collected, and the distance between the sampling cavities can be adjusted to ensure that it can collect water bodies in different layers of groundwater.

[0059] In this embodiment, the opening and closing driving mechanism includes:

[0060] Linkage mechanisms, two of which are provided and symmetrically installed on the inner built-in frame 23;

[0061] The telescopic square tube 26 is connected between the active ends of two link mechanisms. One end of a driving rod 27 is fixedly connected to the center position on the front surface of the telescopic square tube 26, and the other end of the driving rod 27 is fixedly connected to the driving end of the push cylinder 24, so that the push cylinder 24 can drive the two link mechanisms to perform relative symmetric motion through the telescopic square tube 26;

[0062] And there are two first link rods 20, which are respectively rotatably installed on the driven ends of the two link mechanisms, and the bottom end of each first link rod 20 can be rotatably connected to a traction rod 13 in the front and rear directions;

[0063] Specifically, the push cylinder 24 is used as a power source, and can be an electric cylinder type or an oil cylinder type. It is arranged at the top of the device of the present invention and is not immersed in the water body, eliminating the need for cumbersome wiring work, greatly shortening the installation time of the device, and enabling water sampling work to be carried out more quickly at different monitoring locations, especially suitable for situations where temporary or emergency water sampling is required.

[0064] In this embodiment, two support rings 7 are also fixedly installed on each support column 10, and two bundle tubes 3 are connected between the two support rings 7;

[0065] The inner diameter of the bundle tube 3 is the same as the outer diameter of the traction rod 13, so that the traction rod 13 can fit and slide into the corresponding bundle tube 3, and the bottom end of the traction rod 13 extends out;

[0066] Specifically, the traction rod 13 serves as a transmission rod between the opening and closing drive mechanism and the plugging mechanism, and the bundle tube 3 has a limiting effect on the traction rod 13, enabling the traction rod 13 to only slide up and down along the length direction of the bundle tube 3.

[0067] In this embodiment, the link mechanism includes:

[0068] The fifth turning handle 28, one end of which is rotatably connected to the telescopic square tube 26 by a long pin, and the other end of the fifth turning handle 28 is rotatably installed on the inner support 23;

[0069] The rotating column 22, one end of which is rotatably installed on the top of the built-in frame 23, the other end of the rotating column 22 passes through the side wall of the ring shell 2 and extends out, and a fourth turning handle 25 and a third turning handle 21 are respectively fixed on the inner and outer ends of the rotating column 22;

[0070] And the second link rod 29, one end of which is rotatably connected to the long pin, and the other end of the second link rod 29 is rotatably connected to the end of the fourth turning handle 25;

[0071] Wherein, the end of the third turning handle 21 is rotatably connected to the top end of the first link rod 20.

[0072] In this embodiment, both the fourth turning handle 25 and the third turning handle 21 incline downward based on the horizontal plane, and their inclination angles are the same. That is to say, the fourth turning handle 25 and the third turning handle 21 rotate synchronously and in the same direction by a set angle;

[0073] Specifically, when the push cylinder 24 performs an extension action (that is, it can satisfy the requirement of driving the plugging mechanism to be in a sealed state, please refer to the attached Figure 4 , 5 , 6), the telescopic square tube 26 is pushed upward by the driving rod 27, so that the fifth turning handle 28 flips upward. During this period, the distance between the two fifth turning handles 28 will gradually decrease, and the telescopic square tube 26 makes appropriate concessions through its own telescopic property;

[0074] At the same time, the fifth turning handle 28 pushes the third turning handle 21 to flip upward through the second connecting rod 29. Since the actions of the fourth turning handle 25 and the third turning handle 21 are consistent, the third turning handle 21 flips upward and pulls the traction rod 13 upward through the first connecting rod 20, driving the plugging mechanism to be in a sealed state;

[0075] When the push cylinder 24 performs a contraction action, similarly to the above, the fifth turning handle 28, the fourth turning handle 25 and the third turning handle 21 all flip downward in linkage, and then the traction rod 13 is pressed downward through the first connecting rod 20, driving the plugging mechanism to be in an open state;

[0076] In this way, the opening and closing states of each plugging mechanism are synergistically controlled. Since the water quality at different depths of groundwater often varies, synchronous water sampling can obtain water samples at different depths at the same time, avoiding the influence of time difference caused by sequential sampling on water quality, and more truly reflecting the water quality stratification situation of groundwater in the vertical direction.

[0077] In this embodiment, a sealing sleeve is arranged between the rotating column 22 and the perforation of the ring shell 2.

[0078] In this embodiment, the plugging mechanism includes:

[0079] A force-bearing frame 19, which is fixedly connected between two support columns 10 located in the front;

[0080] A rotating shaft 16, which is rotatably installed on the force-bearing frame 19;

[0081] There are two first turning handles 15, which are symmetrically fixed on the rotating shaft 16. The end of each first turning handle 15 is rotatably connected with a tension rod 14;

[0082] A second turning handle 17, which is fixed on the rotating shaft 16 and is located between the two first turning handles 15;

[0083] And a gate 30, the upper and lower ends of which are respectively and sealingly arranged in the upper and lower sliding grooves at the outer opening of the sampling chamber. When the gate 30 is in the blocking state, there is a sliding space for the gate 30 to slide upward in the upper sliding groove, and the gate 30 is driven by the second turning handle 17 to perform opening and closing actions.

[0084] In this embodiment, the top end of the stay bar 14 in the upper blocking mechanism is rotatably connected to the inner part of the traction rod 13 in the front and rear directions;

[0085] The top end of the stay bar 14 in the lower blocking mechanism is rotatably connected to the bottom end of the traction rod 13 in the front and rear directions;

[0086] Specifically, when the traction rod performs an upward pulling action, it pulls up the first turning handle through the stay bar 14. Due to the fixed relationship between the first turning handle and the rotating shaft, the first rotating shaft 16 rotates counterclockwise and drives the gate 30 to move downward until the gate is in a closed state;

[0087] When the traction rod performs a downward pressing action, it presses down the first turning handle through the stay bar 14. Due to the fixed relationship between the first turning handle and the rotating shaft, the first rotating shaft 16 rotates clockwise and drives the gate 30 to move upward, making the gate open.

[0088] In this embodiment, the bottom of the front surface of the gate 30 is set as an inclined plane, reducing its truncated contact area with the water body and decreasing the resistance generated when the gate is closed;

[0089] A sliding hole is penetrated through the gate 30, and an extension rod 31 is slidably connected in the sliding hole. One end of the extension rod 31 is fixedly connected to one end of a push handle 32, and the other end of the push handle 32 is rotatably connected to the end of the second turning handle 17;

[0090] The other end of the extension rod 31 is fixedly connected to a spring seat 33, a spring 34 is connected between the spring seat 33 and the gate 30, and the spring 34 is wound around the side wall of the extension rod 31.

[0091] In this embodiment, two connectors 35 are installed on the side wall of the ring shell 2, and a lead pipe is communicated between each connector 35 and the two sampling chambers respectively;

[0092] It should be noted that the connector 35 is used to connect to a vacuum pump, and the vacuum pump can exhaust the gas in the sampling chamber to make it in a relatively high negative pressure state to improve the water intake rate.

[0093] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for dynamic monitoring of groundwater and rapid collection of stratified water samples, characterized in that, Comprising: An upper seat (11) to which a sling (1) is connected; A lower seat (6) fixedly connected to the upper seat (11) by a plurality of support columns (10). A monitoring module is fixedly installed on the bottom surface of the lower seat (6), and a transparent cover (5) capable of wrapping the monitoring module is hermetically connected to the edge of the bottom surface of the lower seat (6); A support plate (9) disposed below the upper seat (11) and fixedly connected to each support column (10); A ring shell (2) hermetically connected between the support plate (9) and the upper seat (11), and an inner mounting frame (23) is fixed inside the ring shell (2); A sampling cylinder (8) connected between the support plate (9) and the lower seat (6). Two separated sampling chambers are provided in the sampling cylinder (8), and a plugging mechanism is provided at the outer opening of each sampling chamber; An opening and closing driving mechanism capable of driving each plugging mechanism to synchronously control the opening and closing states of the outer openings of the sampling chambers; The opening and closing driving mechanism includes: Linkage mechanisms, two of which are provided and symmetrically installed on the inner mounting frame (23); A telescopic square tube (26) connected between the driving ends of the two linkage mechanisms. One end of a driving rod (27) is fixedly connected to the central position of the front surface of the telescopic square tube (26), and the other end of the driving rod (27) is fixedly connected to the driving end of a push cylinder (24). The push cylinder (24) is located at the top of the collection device, so that the push cylinder (24) can drive the two linkage mechanisms to perform relative symmetric motion through the telescopic square tube (26); And two first link rods (20), which are respectively rotatably installed on the driven ends of the two linkage mechanisms, and the bottom end of each first link rod (20) can be rotatably connected to a traction rod (13) in the front and rear directions; The plugging mechanism includes: A force-bearing frame (19) fixedly connected between the two support columns (10) located in the front; A rotating shaft (16) rotatably installed on the force-bearing frame (19); Two first rotating handles (15) provided and symmetrically fixed on the rotating shaft (16). The end of each first rotating handle (15) can be rotatably connected to a tension strut (14); A second rotating handle (17) fixed on the rotating shaft (16) and located between the two first rotating handles (15); And a gate (30), the upper and lower ends of which are hermetically arranged in the upper and lower sliding grooves of the outer opening of the sampling chamber respectively. When the gate (30) is in the plugged state, a sliding space for the gate (30) to slide upward is left in the upper sliding groove, and the gate (30) is driven by the second rotating handle (17) to perform opening and closing actions.

2. The groundwater dynamic monitoring and layered water sample rapid collection device according to claim 1, characterized in that: Two support rings (7) are also fixedly installed on each support column (10), and two bundle tubes (3) are connected between the two support rings (7); The inner diameter of the bundle tube (3) is the same as the outer diameter of the traction rod (13), so that the traction rod (13) can be slidably inserted into the corresponding bundle tube (3) in a matching manner, and the bottom end of the traction rod (13) extends out.

3. The rapid groundwater dynamic monitoring and layered water sample collection device according to claim 1, characterized in that: The linkage mechanism includes: The fifth turning handle (28), one end of which is rotatably connected to the telescopic square tube (26) by a long pin, and the other end of the fifth turning handle (28) is rotatably mounted on the built-in frame (23); The turning column (22), one end of which is rotatably mounted on the top of the built-in frame (23), the other end of the turning column (22) passes through the side wall of the ring shell (2) and extends out, and a fourth turning handle (25) and a third turning handle (21) are respectively fixed on the inner and outer ends of the turning column (22); And a second connecting rod (29), one end of which is rotatably connected to the long pin, and the other end of the second connecting rod (29) is rotatably connected to the end of the fourth turning handle (25); Wherein, the end of the third turning handle (21) is rotatably connected to the top end of the first connecting rod (20).

4. The groundwater dynamic monitoring and layered water sample rapid collection device according to claim 3, characterized in that: Both the fourth turning handle (25) and the third turning handle (21) are inclined downward based on the horizontal plane, and the inclination angles of the two are the same.

5. The groundwater dynamic monitoring and layered water sample rapid collection device according to claim 3, characterized in that: A sealing sleeve is arranged between the turning column (22) and the perforation of the ring shell (2).

6. The rapid groundwater dynamic monitoring and stratified water sample collection device according to claim 1, characterized in that: The top end of the stay bar (14) in the upper plugging mechanism can be rotatably connected to the inner side of the towing rod (13) front and back; The top end of the stay bar (14) in the lower plugging mechanism can be rotatably connected to the bottom end of the towing rod (13) front and back.

7. The rapid groundwater dynamic monitoring and layered water sample collection device according to claim 1, wherein: The bottom of the front of the gate (30) is provided with an inclined section, a sliding hole is penetrated through the gate (30), an extension rod (31) is slidably fitted in the sliding hole, one end of the extension rod (31) is fixedly connected to one end of a pushing handle (32), and the other end of the pushing handle (32) is rotatably connected to the end of the second turning handle (17); The other end of the extension rod (31) is fixedly connected to a spring seat (33), a spring (34) is connected between the spring seat (33) and the gate (30), and the spring (34) is wound on the side wall of the extension rod (31).

8. A device for rapid collection of groundwater dynamic monitoring and stratified water samples according to claim 1, characterized in that: Two connectors (35) are installed on the side wall of the ring shell (2), and a lead pipe is communicated between each connector (35) and the two sampling cavities respectively.

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