Soil and groundwater mobile sampling device

Abstract

The invention discloses a mobile soil and groundwater sampling device, comprising a mounting plate, a volumetric flask position adjustment unit, a volumetric flask placement unit, a sampling unit, a supporting unit and an extraction unit; the mounting plate is provided with two corresponding upper and lower parts, and the four corners are connected by mounting columns, the mounting plate and the mounting columns constitute a vehicle frame, the two sides of one end of the lower mounting plate are respectively rotatably connected to wheels through wheel frames, and the lower mounting plate is respectively provided with a sampling unit and a generator, the lower side surfaces of the two mounting columns away from the wheels are respectively installed with supporting units, and the two sides of the upper mounting plate are installed with volumetric flask placement units through the volumetric flask position adjustment unit, and the volumetric flask is placed in the volumetric flask placement unit; the capacity for collecting soil and groundwater becomes larger, which is beneficial to the subsequent analysis of a large amount of data collection of soil leaching solution, and is convenient for overall movement, and the dependence on an external power supply is reduced, and the scope of use is wide, which can meet the use requirements.

Description

Technical Field

[0001] The invention relates to the technical field of soil leaching solution, in particular to a soil and groundwater mobile sampling device. Background Art

[0002] In the process of soil research, soil sample leachate is often collected for analysis to obtain the specific conditions of the soil. Sampling tubes are usually used in the collection of some simple soil sample leachate. However, if it involves the collection of a large amount of soil leachate over a large area or underground, the use of sampling tubes can no longer meet the needs. For this reason, volumetric bottles containing a large amount of leachate are required and they must be easy to move. For this reason, we propose a mobile soil and groundwater sampling device. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the existing defects and provide a mobile soil and groundwater sampling device. The capacity for collecting soil and groundwater is increased, which is conducive to the collection of a large amount of data for subsequent analysis of soil leachate, and is convenient for overall mobility. The dependence on external power supply is reduced, the scope of use is wide, the use requirements can be met, and the problems in the background technology can be effectively solved.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solutions: a soil and groundwater mobile sampling device, comprising a mounting plate, a volumetric bottle position adjustment unit, a volumetric bottle placement unit, a sampling unit, a support unit and an extraction unit;

[0005] The mounting plate is provided with two corresponding upper and lower parts and the four corners are connected by mounting columns, the mounting plate and the mounting columns constitute a vehicle frame, the two sides of one end of the lower mounting plate are rotatably connected to the wheels through the wheel frame, and the lower mounting plate is respectively provided with a sampling unit and a generator, the lower side surfaces of the two mounting columns away from the wheels are respectively installed with supporting units, and the two sides of the upper mounting plate are installed with volumetric flask placement units through volumetric flask position adjustment units, the volumetric flask is placed in the volumetric flask placement unit, and the top of the volumetric flask is installed with a bottle cap, and an extraction unit is also installed on the upper mounting plate;

[0006] The sampling unit includes a guide rod, a lead screw, a movable block, a top plate, a motor, a sampling tube, a drill bit and a filter screen. The mounting plate on the lower side is connected to the top plate through two vertical guide rods, and the top plate and the mounting plate on the lower side are also rotatably connected with a lead screw parallel to the guide rod. The top plate is equipped with a motor with an output shaft connected to the top of the lead screw. The two guide rods are slidably connected to the sliding holes on the movable block, and the lead screw is threadedly connected to the screw hole on the movable block. The bottom of the movable block is equipped with a sampling tube, the bottom end of the sampling tube passes through the circular hole of the mounting plate on the lower side and is equipped with a drill bit, and a filter screen is installed in the bottom through groove of the sampling tube.

[0007] It also includes a switch group and a battery, which are both installed on the upper mounting plate, and the output end of the generator is electrically connected to the input end of the battery through a transformer, and the output end of the battery is electrically connected to the input end of the motor through the switch group.

[0008] The generator can generate electricity and store it in the battery through voltage transformation, which is convenient for long-term remote use away from the mains. The switch group can guide the electricity in the battery into the motor. The motor can drive the screw to rotate, thereby driving the movable block to slide up and down along the guide rod. When the movable block moves downward, it can drive the sampling tube at the bottom to penetrate into the soil. The drill bit can drill into the soil layer conveniently. The groundwater in the soil is filtered into the sampling tube through the filter. The extraction unit can extract the water in the sampling tube into the volumetric bottle. The volumetric bottle position adjustment unit can adjust the front and rear position of the volumetric bottle placement unit, which is convenient for the installation plate and the installation column to form the balance and stability of the frame. The volumetric bottle placement unit is used to place the volumetric bottle and ensure the stability of the volumetric bottle to prevent the volumetric bottle from being damaged during movement.

[0009] Furthermore, the volumetric bottle position adjustment unit includes a slide rail, a limit hole, a slider and a limit bolt. The slide rail is fixed to the side of the upper mounting plate. The side of the slide rail is provided with limit holes at equal distances. The slider is slidably connected to the slide rail, and the side of the slider is threadedly connected with a limit bolt whose end abuts in the limit hole. The slider slides on the slide rail to facilitate adjustment of the position of the volumetric bottle placement unit. After adjusting the balance of the frame, the limit bolt is tightened so that the end of the limit bolt abuts in the nearest limit hole to prevent the slider from sliding again and affecting the balance of the frame.

[0010] Furthermore, the volumetric bottle position adjustment unit includes a support rod, a support block and a rib plate. The support rod is located below the slide rail and its two ends are fixed on the mounting column. The support block is slidably connected in the slide groove on the support rod, and the end of the support rod is reinforced and connected to the mounting column through the rib plate. The support rod can support the support block, realize the sliding support of the volumetric bottle placement unit, ensure the stability of the volumetric bottle placement unit, and prevent the volumetric bottle placement unit from falling due to the volumetric bottle being full of groundwater solution. The rib plate plays a role in reinforcing the support rod.

[0011] Furthermore, the volumetric bottle placement unit includes a placement frame, a support plate and a limiting ring. The placement frame is fixed at the bottom of the slider, and the bottom of the placement frame is connected to the support block. The placement frame includes no less than two parallel-connected three-dimensional frames, and a support plate is installed at the bottom of the three-dimensional frame. A limiting ring is installed on the top inner side of the three-dimensional frame. The volumetric bottle is placed on the support plate and the top is limited by the limiting ring to prevent shaking. The support plate is used to place the volumetric bottle, and the limiting ring can be a flexible rubber ring, which can play a limiting role and a shock absorbing role at the same time.

[0012] Furthermore, the support unit includes a mounting tube, a notch, a slide bar, a limit rod and a support plate. The mounting tube is fixed to the side of the mounting column and the top is closed. A through slot is provided on the front side of the mounting tube, and two notches are provided on the side of the through slot. A slide bar is slidably connected in the mounting tube. A limit rod that is engaged with the notch is installed on the side of the slide bar, and a support plate supported on the ground is installed at the bottom end of the slide bar. The limit rod is stuck in the notch on the upper side to retract the slide bar into the mounting tube, and the support plate also rises, making it convenient for people to push the frame to move in coordination with the wheels. When the limit rod is stuck in the notch on the lower side, the lower end of the slide bar extends out of the mounting tube, and the support plate is supported on the ground, so as to achieve stable placement of the frame in coordination with the support of the wheels.

[0013] Furthermore, it also includes a position fixing unit, which includes a stretching assembly, a notch 2, a limiting rod 2, a movable rod and a spike. The interior of the sliding rod is hollow and the bottom is open, and a rectangular through slot is provided on the front side of the sliding rod, and a notch 2 is provided on the side of the rectangular through slot. The interior of the sliding rod is slidably connected with a movable rod, and the top of the movable rod is connected to the top of the interior of the sliding rod through the stretching assembly, and the bottom end of the movable rod passes through the bottom opening of the sliding rod and the support plate and is connected to the spike. Since the wheels are easy to roll, the frame is easy to move even with the supporting friction of the support plate. At this time, the movable rod is pressed down by the limiting rod 2, and the stretching assembly is stretched at this time, and the spike at the bottom of the movable rod pierces the ground, completing the position fixing of the support unit, facilitating the position fixing of the frame, and avoiding the frame movement during the sampling operation to affect the normal operation.

[0014] Furthermore, the extraction unit includes an extraction tube, an installation box, a liquid pump, a water outlet pipe and a connector. The liquid pump is installed at the rectangular groove on the upper mounting plate through the installation box. The liquid inlet of the liquid pump is connected to one end of the extraction tube, and the other end of the extraction tube extends into the sampling tube. The liquid outlet of the liquid pump is connected to the connector through the water outlet pipe, and the connector is connected to the top connector of the bottle cap. The output end of the battery is electrically connected to the input end of the liquid pump through the switch group. The switch group can connect the battery and the liquid pump. When the liquid pump is working, it can extract the leaching solution in the sampling tube into the volumetric bottle. The connector and the top connector of the bottle cap cooperate to facilitate extraction into different volumetric bottles.

[0015] Furthermore, it also includes a water collection unit, which includes a slide, a water collection pipe, a mounting block, a flexible connecting strip, a flexible water-blocking pad and a counterweight. The slide is arranged on the inner side of the sampling pipe, and the slide fixed on the outer side of the water collection pipe is slidably connected to the slide. A water collection hole is provided at the bottom center of the water collection pipe, and the mounting block at the inner bottom of the water collection pipe is connected to the flexible water-blocking pad through a flexible connecting strip. A counterweight is arranged on the flexible water-blocking pad, and the counterweight is disc-shaped and arranged concentrically with the water collection hole, and has a diameter larger than the water collection hole. The bottom end of the extraction tube extends to the inner bottom side of the water collection pipe. The slide cooperates with the slide to facilitate the removal and insertion of the water collection pipe. When the water level in the sampling pipe is high, the water pressure lifts the flexible water-blocking pad into the water collection pipe. When the water pressure in the water collection pipe and the sampling pipe is the same, the counterweight presses the flexible water-blocking pad to block the water collection hole, thereby preventing the water in the water collection pipe from returning to the sampling pipe.

[0016] Furthermore, it also includes a push rod and a handle cover, wherein the two sides of the mounting posts away from the wheels are respectively connected with push rods, and one end of the push rod away from the mounting post is bent downward to form a handle, and the handle cover is sleeved on the handle. The push rod is convenient for the operator to push the frame to move the position, and the handle cover is convenient to hold.

[0017] Furthermore, a storage box is also included, and a storage box for storing tools is fixed between two mounting posts away from the wheels. Some tools used can be placed in the storage box.

[0018] Compared with the prior art, the beneficial effects of the present invention are: the soil groundwater mobile sampling device has the following advantages:

[0019] 1. The generator can generate electricity and store it in the battery through voltage transformation, which is convenient for long-term use away from the mains. The switch group can lead the electricity in the battery to the motor. The motor can drive the lead screw to rotate, thereby driving the movable block to slide up and down along the guide rod. When the movable block moves downward, it can drive the bottom sampling tube to penetrate into the soil. The drill bit can drill into the soil layer conveniently, and the groundwater in the soil is filtered through the filter and enters the sampling tube;

[0020] 2. The switch group can connect the battery and the liquid pump. The liquid pump can extract the leachate in the sampling tube into the volumetric bottle. The connection head and the connection port on the top of the bottle cap are convenient for extraction into different volumetric bottles.

[0021] 3. The slider slides on the slide rail to adjust the position of the volumetric bottle placement unit. After adjusting the balance of the frame, tighten the limit bolt so that the end of the limit bolt reaches the nearest limit hole to prevent the slider from sliding again and affecting the balance of the frame;

[0022] 4. The support plate is used to place the volumetric bottle, and the limit ring can be a flexible rubber ring, which can play a role of limiting and shock absorption;

[0023] 5. When the limit rod is stuck in the notch on the upper side, the slide bar can be retracted into the installation tube, and the support plate also rises, which is convenient for people to push the frame to move with the wheels. When the limit rod is stuck in the notch on the lower side, the lower end of the slide bar extends out of the installation tube, and the support plate is supported on the ground, cooperating with the support of the wheels to achieve stable placement of the frame;

[0024] 6. Since the wheels are easy to roll, the frame is easy to move even with the support friction of the support plate. At this time, the movable rod is pressed down by the second limit rod, and the stretching assembly is stretched. The spikes at the bottom of the movable rod pierce the ground to fix the position of the support unit, which is convenient for fixing the position of the frame and avoiding the movement of the frame during the sampling operation to affect the normal work;

[0025] 7. The capacity for collecting soil and groundwater is increased, which is conducive to the collection of large amounts of data for subsequent analysis of soil leaching solutions, and is convenient for overall mobility. It reduces dependence on external power sources and has a wide range of uses that can meet usage needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of the present invention;

[0027] Figure 2 It is a side view structural schematic diagram of the present invention;

[0028] Figure 3 It is a rear view structural schematic diagram of the present invention;

[0029] Figure 4 It is a schematic diagram of the structure of the support unit and the position fixing unit of the present invention;

[0030] Figure 5 This is a schematic diagram of the sampling tube and drill bit structure of the present invention;

[0031] Figure 6 It is a schematic diagram of the cross-sectional structure of the sampling tube and the drill bit of the present invention;

[0032] Figure 7 For the present invention Figure 6 Schematic diagram of the local enlarged structure at point A.

[0033] In the figure: 1 mounting plate, 2 mounting column, 3 volumetric bottle position adjustment unit, 31 slide rail, 32 limiting hole, 33 slider, 34 limiting bolt, 35 support rod, 36 support block, 37 rib plate, 4 volumetric bottle placement unit, 41 placement frame, 42 support plate, 43 limiting ring, 5 sampling unit, 51 guide rod, 52 lead screw, 53 movable block, 54 top plate, 55 motor, 56 sampling tube, 57 drill bit, 58 filter screen, 6 support unit, 61 mounting tube, 62 notch one, 63 slide rod, 64 limiting rod one, 65 support plate, 7 Position fixing unit, 71 stretching component, 72 notch two, 73 limit rod two, 74 movable rod, 75 spikes, 8 water collection unit, 81 slide, 82 water collection pipe, 83 mounting block, 84 flexible connecting strip, 85 flexible water blocking pad, 86 counterweight, 9 extraction unit, 91 extraction pipe, 92 installation box, 93 liquid pump, 94 water outlet pipe, 95 connector, 10 generator, 11 wheel frame, 12 wheel, 13 push rod, 14 handlebar, 15 storage box, 16 battery, 17 capacity bottle, 18 bottle cap, 19 switch group. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] For example, see Figure 1-6 , the present invention provides a technical solution: a soil and groundwater mobile sampling device, comprising a mounting plate 1, a volumetric bottle position adjustment unit 3, a volumetric bottle placement unit 4, a sampling unit 5, a support unit 6 and an extraction unit 9;

[0036] The mounting plate 1 is provided with two corresponding upper and lower parts and the four corners are connected by mounting columns 2, the mounting plate 1 and the mounting columns 2 constitute a vehicle frame, the two sides of one end of the lower mounting plate 1 are rotatably connected with wheels 12 through wheel frames 11, and the lower mounting plate 1 is respectively provided with a sampling unit 5 and a generator 10, the lower side surfaces of the two mounting columns 2 away from the wheels 12 are respectively installed with supporting units 6, and the two sides of the upper mounting plate 1 are installed with volumetric flask placement units 4 through volumetric flask position adjustment units 3, a volumetric flask 17 is placed in the volumetric flask placement unit 4, and a bottle cap 18 is installed on the top of the volumetric flask 17, and an extraction unit 9 is also installed on the upper mounting plate 1;

[0037] The sampling unit 5 includes a guide rod 51, a lead screw 52, ​​a movable block 53, a top plate 54, a motor 55, a sampling tube 56, a drill bit 57 and a filter screen 58. The lower mounting plate 1 is connected to the top plate 54 through two vertical guide rods 51, and the top plate 54 and the lower mounting plate 1 are also rotatably connected with a lead screw 52 parallel to the guide rod 51. The top plate 54 is provided with a motor 55 whose output shaft is connected to the top of the lead screw 52. The two guide rods 51 are slidably connected to the sliding holes on the movable block 53, and the lead screw 52 is threadedly connected to the screw hole on the movable block 53. A sampling tube 56 is installed at the bottom of the movable block 53. The bottom end of the sampling tube 56 passes through the circular hole of the lower mounting plate 1 and is installed with a drill bit 57. A filter screen 58 is installed in the bottom through groove of the sampling tube 56.

[0038] The drill bit 57 may have four edges, and the bottom through groove of the sampling tube 56 and the four edges of the drill bit 57 are arranged alternately.

[0039] The switch group 19 and the battery 16 are also included. The switch group 19 and the battery 16 are both mounted on the upper mounting plate 1. The output end of the generator 10 is electrically connected to the input end of the battery 16 through a transformer, and the output end of the battery 16 is electrically connected to the input end of the motor 55 through the switch group 19. The transformer can use an existing small transformer or transformer circuit, and the generator 10 uses a small gasoline generator with a gasoline tank attached. This eliminates the reliance on cables or large batteries.

[0040] The volumetric flask position adjustment unit 3 includes a slide rail 31, a limiting hole 32, a slider 33 and a limiting bolt 34. The slide rail 31 is fixed to the side of the upper mounting plate 1. The side of the slide rail 31 is provided with limiting holes 32 at equal distances. The slider 33 is slidably connected to the slide rail 31, and the side of the slider 33 is threadedly connected with a limiting bolt 34 whose end abuts in the limiting hole 32. The slider 33 slides on the slide rail 31 to facilitate adjustment of the position of the volumetric flask placement unit 4. After adjusting the balance of the frame, the limiting bolt 34 is tightened, and the end of the limiting bolt 34 abuts in the nearest limiting hole 32 to prevent the slider 33 from sliding again and affecting the balance of the frame.

[0041] The volumetric bottle position adjustment unit 3 includes a support rod 35, a support block 36 and a rib plate 37. The support rod 35 is located below the slide rail 31 and fixed at both ends on the mounting column 2. The support block 36 is slidably connected in the slide groove on the support rod 35, and the end of the support rod 35 is reinforced and connected to the mounting column 2 through the rib plate 37. The support rod 35 can support the support block 36, realize the sliding support of the volumetric bottle placement unit 4, ensure the stability of the volumetric bottle placement unit 4, and prevent the volumetric bottle placement unit 4 from falling due to the volumetric bottle being full of groundwater solution. The rib plate 37 plays a role in reinforcing the support rod 35.

[0042] The volumetric bottle placement unit 4 includes a placement frame 41, a support plate 42 and a limiting ring 43. The placement frame 41 is fixed to the bottom of the slider 33, and the bottom of the placement frame 41 is connected to the support block 36. The placement frame 41 includes no less than two three-dimensional frames connected in parallel, and the bottom of the three-dimensional frame is installed with a support plate 42, and the top inner side of the three-dimensional frame is installed with a limiting ring 43. The volumetric bottle 17 is placed on the support plate 42 and the top is limited by the limiting ring 43 to avoid shaking. The support plate 42 is used to place the volumetric bottle 17, and the limiting ring 43 can be a flexible rubber ring, which can play a limiting role and a shock absorbing role.

[0043] The support unit 6 includes a mounting tube 61, a notch 62, a slide bar 63, a limit rod 64 and a support plate 65. The mounting tube 61 is fixed to the side of the mounting column 2 and the top is closed. A through slot is provided at the front side of the mounting tube 61, and two notches 62 are provided at the side of the through slot. The mounting tube 61 is slidably connected with the slide bar 63. The side of the slide bar 63 is provided with a limit rod 64 that is engaged with the notch 62, and the bottom end of the slide bar 63 is provided with a support plate 65 supported on the ground. The limit rod 64 is engaged with the notch 62 on the upper side to retract the slide bar 63 into the mounting tube 61, and the support plate 65 is also raised, so that it is convenient for people to push the frame to move in coordination with the wheels. When the limit rod 64 is engaged with the notch 62 on the lower side, the lower end of the slide bar 63 extends out of the mounting tube 61, and the support plate 65 is supported on the ground, so that the frame can be stably placed in coordination with the support of the wheels.

[0044] The extraction unit 9 includes an extraction tube 91, an installation box 92, a liquid pump 93, a water outlet pipe 94 and a connector 95. The liquid pump 93 is installed at the rectangular groove on the upper mounting plate 1 through the installation box 92. The liquid inlet of the liquid pump 93 is connected to one end of the extraction tube 91, and the other end of the extraction tube 91 extends into the sampling tube 56. The liquid outlet of the liquid pump 93 is connected to the connector 95 through the water outlet pipe 94. The connector 95 is connected to the top connection port of the bottle cap 18. The output end of the battery 16 is electrically connected to the input end of the liquid pump 93 through the switch group 19. The switch group 19 can connect the battery 16 and the liquid pump 93. The liquid pump 93 can extract the eluent in the sampling tube 56 into the volumetric bottle when it works. The connector 95 cooperates with the top connection port of the bottle cap 18 to facilitate extraction into different volumetric bottles.

[0045] The use process and working principle of this embodiment are as follows: the generator 10 can generate electricity and store it in the battery 16 through voltage transformation, which is convenient for long-term remote use away from the mains electricity. The switch group 19 can introduce the electricity in the battery 16 into the motor 55. The motor 55 can drive the screw 52 to rotate, thereby driving the movable block 53 to slide up and down along the guide rod 51. When the movable block 53 moves downward, it can drive the sampling tube 56 at the bottom to penetrate into the soil. The drill bit 57 can drill into the soil layer conveniently. The groundwater in the soil is filtered into the sampling tube 56 through the filter screen 58. The extraction unit 9 can extract the water in the sampling tube 56 into the volumetric bottle 17. The volumetric bottle position adjustment unit 3 can adjust the front and rear position of the volumetric bottle placement unit 4, which is convenient for the installation plate 1 and the installation column 2 to form the balance and stability of the frame. The volumetric bottle placement unit 4 is used to place the volumetric bottle 17 and ensure the stability of the volumetric bottle 17 to prevent the volumetric bottle 17 from being damaged during movement.

[0046] In this embodiment, the volumetric flask is preferably a transparent bottle so that the amount of the internal elution solution can be observed.

[0047] For example 2, please refer to Figure 4 The present embodiment discloses a soil sample leaching solution sampling tube, and its structure is substantially the same as that of the first embodiment, except that: it also includes a position fixing unit 7, the position fixing unit 7 includes a stretching assembly 71, a notch 72, a limit rod 73, a movable rod 74 and a spike 75, the interior of the sliding rod 63 is hollow and the bottom is open, and a rectangular through groove is provided on the front side of the sliding rod 63, and a notch 72 is provided on the side of the rectangular through groove, and a movable rod 74 is slidably connected to the interior of the sliding rod 63, and the top of the movable rod 74 is connected to the top of the interior of the sliding rod 63 through the stretching assembly 71, and the bottom end of the movable rod 74 passes through the bottom opening of the sliding rod 63 and the support plate 65 and is connected to the spike 75. Since the wheels are easy to roll, the frame is easy to move even with the supporting friction of the support plate 65. At this time, the movable rod 74 is pressed down by the limit rod 2 73, and the stretching component 71 is stretched. The spikes 75 at the bottom of the movable rod 74 penetrate into the ground, completing the position fixation of the support unit 6, facilitating the position fixation of the frame, and avoiding the movement of the frame during the sampling operation to affect the normal progress of the work.

[0048] In this embodiment, the stretching component 71 can be an elastic band, a rubber strip or a stretching spring. Considering the environment, the stretching spring is the best.

[0049] For example 3, please refer to Figure 5-7The present embodiment discloses a soil sample leaching solution sampling tube, and its structure is substantially the same as that of the first embodiment, except that: it also includes a water collecting unit 8, the water collecting unit 8 includes a slide 81, a water collecting pipe 82, a mounting block 83, a flexible connecting strip 84, a flexible water blocking pad 85 and a counterweight 86, the slide 81 is arranged on the inner side of the sampling pipe 56, and the sliding strip fixed on the outer side of the water collecting pipe 82 is slidably connected to the slide 81, a water collecting hole is opened at the bottom center of the water collecting pipe 82, and the mounting block 83 at the inner bottom of the water collecting pipe 82 is connected to the flexible water blocking pad 85 through the flexible connecting strip 84, a counterweight 86 is arranged on the flexible water blocking pad 85, and the counterweight 86 is disc-shaped and arranged concentrically with the water collecting hole, and has a diameter larger than the water collecting hole, and the bottom end of the extraction pipe 91 extends to the inner bottom side of the water collecting pipe 82. The slide bar and the slideway 81 cooperate to facilitate the removal and insertion of the water collecting pipe 82. When the water level in the sampling tube 56 is high, the water pressure lifts the flexible water blocking pad 85 and enters the water collecting pipe 82. When the water pressure in the water collecting pipe 82 and the sampling tube 56 is the same, the counterweight block 86 presses the flexible water blocking pad 85 to block the water collecting hole, preventing the water in the water collecting pipe 82 from returning to the sampling tube 56.

[0050] In this embodiment, the water collecting pipe 82 can be made of a hard pipe, especially a stainless steel pipe, wherein the flexible connecting strip 84 and the flexible water blocking pad 85 can be made of rubber material, and the counterweight block 86 is made of stainless steel to avoid rust and maintenance.

[0051] Example 4, please refer to Figure 1 This embodiment discloses a soil sample solution sampling tube, and its structure is substantially the same as that of the first embodiment, except that: it also includes a push rod 13 and a handle cover 14, and the two sides of the mounting posts 2 away from the wheel 12 are respectively connected with the push rods 13, and one end of the push rod 13 away from the mounting post 2 is bent downward to form a handle, and the handle is sleeved with the handle cover 14. The push rod 13 facilitates the operator to push the frame to move the position, and the handle cover 14 is convenient to hold. The handle cover 14 can be a rubber cover or a silicone cover.

[0052] The utility model also includes a storage box 15, and a storage box 15 for storing tools is fixed between two mounting posts 2 far away from the wheel 12. Some tools used for use can be placed in the storage box. The storage box 15 can be separated by a partition to facilitate the classification and placement of tools.

[0053] It is worth noting that the electrical components disclosed in the above embodiments all adopt models commonly used in the prior art, and control switch buttons corresponding to the motor 55 and the liquid pump 93 are set on the switch group 19, and the switch group 19 controls the operation of the motor 55 and the liquid pump 93 using methods commonly used in the prior art.

[0054] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Soil and groundwater mobile sampling device, characterized by: It comprises a mounting plate (1), a volumetric flask position adjustment unit (3), a volumetric flask placement unit (4), a sampling unit (5), a support unit (6) and an extraction unit (9); The mounting plate (1) is provided with two corresponding mounting columns (2) at the upper and lower sides, and the four corners are connected by mounting columns (2); the two sides of one end of the lower mounting plate (1) are rotatably connected to wheels (12) via wheel frames (11); the lower mounting plate (1) is provided with sampling units (5) and generators (10); the lower side surfaces of the two mounting columns (2) away from the wheels (12) are respectively provided with support units (6); the two sides of the upper mounting plate (1) are provided with volumetric flask placement units (4) via volumetric flask position adjustment units (3); a volumetric flask (17) is placed in the volumetric flask placement unit (4); a bottle cap (18) is installed on the top of the volumetric flask (17); and an extraction unit (9) is also installed on the upper mounting plate (1); The sampling unit (5) comprises a guide rod (51), a lead screw (52), a movable block (53), a top plate (54), a motor (55), a sampling tube (56), a drill bit (57) and a filter screen (58). The lower mounting plate (1) is connected to the top plate (54) via two vertical guide rods (51), and the top plate (54) and the lower mounting plate (1) are rotatably connected to a lead screw (52) parallel to the guide rod (51). The top plate (54) is provided with a transmission A motor (55) having an output shaft connected to the top of the lead screw (52), two guide rods (51) being slidably connected to the sliding holes on the movable block (53), and the lead screw (52) being threadedly connected to the screw holes on the movable block (53), a sampling tube (56) being installed at the bottom of the movable block (53), the bottom end of the sampling tube (56) passing through the circular hole of the lower mounting plate (1) and being installed with a drill bit (57), and a filter screen (58) being installed in the bottom through groove of the sampling tube (56); It also includes a switch group (19) and a battery (16), the switch group (19) and the battery (16) are both mounted on the upper mounting plate (1), the output end of the generator (10) is electrically connected to the input end of the battery (16) via a transformer, and the output end of the battery (16) is electrically connected to the input end of the motor (55) via the switch group (19); The volumetric flask position adjustment unit (3) comprises a slide rail (31), a limiting hole (32), a slider (33) and a limiting bolt (34); the slide rail (31) is fixed to the side of the upper mounting plate (1); the limiting holes (32) are arranged at equal intervals on the side of the slide rail (31); the slider (33) is slidably connected to the slide rail (31); and the side of the slider (33) is threadedly connected to a limiting bolt (34) whose end abuts against the limiting hole (32); The extraction unit (9) comprises an extraction tube (91), an installation box (92), a liquid pump (93), a water outlet pipe (94) and a connector (95); the liquid pump (93) is installed at the rectangular groove on the upper installation plate (1) through the installation box (92); the liquid inlet of the liquid pump (93) is connected to one end of the extraction tube (91); the other end of the extraction tube (91) extends into the sampling tube (56); the liquid outlet of the liquid pump (93) is connected to the connector (95) through the water outlet pipe (94); the connector (95) is connected to the top connection port of the bottle cap (18); the output end of the storage battery (16) is electrically connected to the input end of the liquid pump (93) through the switch group (19); It also comprises a water collecting unit (8), the water collecting unit (8) comprising a slideway (81), a water collecting pipe (82), a mounting block (83), a flexible connecting strip (84), a flexible water blocking pad (85) and a counterweight (86); the slideway (81) is arranged on the inner side of the sampling pipe (56), and the slideway fixed on the outer side of the water collecting pipe (82) is slidably connected to the slideway (81); a water collecting hole is opened at the bottom center of the water collecting pipe (82), and the mounting block (83) at the inner bottom of the water collecting pipe (82) is connected to the flexible water blocking pad (85) via the flexible connecting strip (84); a counterweight (86) is arranged on the flexible water blocking pad (85), and the counterweight (86) is disc-shaped and arranged concentrically with the water collecting hole, and has a diameter greater than the water collecting hole; the bottom end of the extraction pipe (91) extends to the inner bottom side of the water collecting pipe (82).

2. The soil and groundwater mobile sampling device according to claim 1 is characterized in that: The volumetric flask position adjustment unit (3) comprises a support rod (35), a support block (36) and a rib plate (37); the support rod (35) is located below the slide rail (31) and has both ends fixed on the mounting column (2); the support block (36) is slidably connected in a slide groove on the support rod (35), and the end of the support rod (35) is reinforcedly connected to the mounting column (2) via the rib plate (37).

3. The soil and groundwater mobile sampling device according to claim 2 is characterized in that: The volumetric flask placement unit (4) comprises a placement frame (41), a support plate (42) and a limiting ring (43); the placement frame (41) is fixed to the bottom of the slider (33), and the bottom of the placement frame (41) is connected to the support block (36); the placement frame (41) comprises at least two three-dimensional frames connected in parallel, and the bottom of the three-dimensional frame is equipped with a support plate (42); the top of the three-dimensional frame is equipped with a limiting ring (43); the volumetric flask (17) is placed on the support plate (42) and the top is limited by the limiting ring (43) to prevent shaking.

4. The soil and groundwater mobile sampling device according to claim 1 is characterized in that: The support unit (6) comprises a mounting tube (61), a notch (62), a slide rod (63), a limit rod (64) and a support plate (65); the mounting tube (61) is fixed to the side of the mounting column (2) and is closed at the top; a through slot is provided on the front side of the mounting tube (61), and two notches (62) are provided on the side of the through slot; a slide rod (63) is slidably connected inside the mounting tube (61); a limit rod (64) that is engaged with the notch (62) is installed on the side of the slide rod (63); and a support plate (65) supported on the ground is installed at the bottom end of the slide rod (63).

5. The soil and groundwater mobile sampling device according to claim 4 is characterized in that: The invention also comprises a position fixing unit (7), wherein the position fixing unit (7) comprises a stretching assembly (71), a second notch (72), a second limiting rod (73), a movable rod (74) and a spike (75); the interior of the sliding rod (63) is hollow and the bottom is open, and a rectangular through slot is provided on the front side of the sliding rod (63); a second notch (72) is provided on the side of the rectangular through slot; the interior of the sliding rod (63) is slidably connected with a movable rod (74); the top of the movable rod (74) is connected to the top of the interior of the sliding rod (63) through the stretching assembly (71); and the bottom end of the movable rod (74) passes through the bottom opening of the sliding rod (63) and the support plate (65) and is connected to the spike (75).

6. The soil and groundwater mobile sampling device according to claim 1, characterized in that: It also comprises a push rod (13) and a handle cover (14), wherein the sides of two mounting columns (2) away from the wheel (12) are respectively connected to the push rods (13), one end of the push rod (13) away from the mounting column (2) is bent downward to form a handle, and the handle is sleeved with the handle cover (14).

7. The soil and groundwater mobile sampling device according to claim 1 or 6, characterized in that: It also includes a storage box (15), wherein a storage box (15) for storing tools is fixed between two mounting posts (2) away from the wheels (12).

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