Real-time mobile sampling device for soil pollution detection

Abstract

The application relates to the technical field of soil pollution detection, in particular to a real-time mobile sampling device for soil pollution detection, which comprises a support, a sampling pipe is installed on the support, a rotary knife is installed on the bottom end of the sampling pipe, a moving assembly, a fixing assembly, a pressing mechanism for driving the sampling pipe and a lifting mechanism, the pressing mechanism is fixed on the support, the output end of the pressing mechanism is installed on the top end of the sampling pipe, two rotary motors for driving the sampling pipe to rotate are arranged, the rotary motors are in transmission connection with the sampling pipe through a transmission assembly, the support can be moved upward through the lifting mechanism, space is reserved below the sampling pipe, the soil in the sampling pipe can be pushed out downward through a pushing mechanism, so that the soil is collected after sampling, the soil obtained by being inserted into the ground can be transferred into the sampling pipe, the soil structure is not damaged during sampling, and the data detection accuracy of the sampled soil is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of soil pollution detection, in particular to a real-time mobile sampling device for soil pollution detection. BACKGROUND

[0002] Soil is an important basis for people to survive, and is the most valuable resource on earth. In every cubic meter of soil, there are billions of living organisms, and soil provides them with food and living space, and also provides materials for human clothing, food, shelter and living. However, with the continuous development of society and industry, soil is being polluted to varying degrees. Soil pollution is different from air and water pollution, and its harm is more persistent and its impact is more polluting. Therefore, it is particularly necessary to detect soil pollutants. In order to better obtain detection data of the degree of soil pollution, people have developed a sampling device that inserts a sampling tube into the soil to obtain soil at different depths and analyzes and detects the pollutants contained in the soil through a detection device to obtain the soil pollution situation of the detected area. However, the existing detection device is not convenient for transferring the soil obtained by inserting into the ground into the sampling tube when in use, which can easily damage the sampled soil, resulting in inaccurate sampling data. Therefore, the existing sampling device needs to be improved. SUMMARY

[0003] (I) Technical problems solved

[0004] In view of the deficiencies in the prior art, the present application provides a real-time mobile sampling device for soil pollution detection.

[0005] (II) Technical solutions

[0006] To achieve the above purpose, the present application provides the following technical solutions: a real-time mobile sampling device for soil pollution detection, comprising a support, a sampling tube mounted on the support, a rotary knife mounted on the circumference of the bottom end of the sampling tube, comprising:

[0007] A moving assembly is installed on the lower part of both sides of the support through a connecting frame;

[0008] A fixing assembly is installed on the support;

[0009] A pressing mechanism for driving the sampling tube, the pressing mechanism is fixed on the support, and the output end of the pressing mechanism is installed on the top end of the sampling tube;

[0010] Two rotary motors for driving the sampling tube to rotate, two rotary motors are arranged on both sides of the sampling tube, and the rotary motors are drivingly connected with the sampling tube through a transmission assembly;

[0011] The support ring is fixedly installed on the inner lower side of the support through the connecting plates at both ends of the support ring;

[0012] The lifting mechanism is installed on both sides of the support based on the fixed assembly, and is used for lifting the height of the support;

[0013] The pushing mechanism is installed in the middle of the top end, and the bottom output end of the pushing mechanism penetrates through the top end of the sampling tube and extends into the sampling tube.

[0014] Further, the moving assembly comprises a fixed plate and a connecting frame, the connecting frame is installed at the lower end of the support on both sides, and the other end of the connecting frame is provided with the fixed plate, the front side and the rear side below the fixed plate are provided with rollers, and the middle part of the fixed plate is threadedly connected with a screw rod, the lower end of the screw rod is rotatably connected with an adjusting plate, the front end and the rear end of the adjusting plate are rotatably installed with telescopic mechanisms, the other end of the two telescopic mechanisms on the front side is rotatably connected with the rollers on the front side, the other end of the two telescopic mechanisms on the rear side is rotatably connected with the rollers on the rear side, the left side and the right side of the roller are provided with shock absorbers, and the other end of the shock absorber is inclined to the screw rod and rotatably installed at the lower end of the fixed plate.

[0015] Further, the fixed assembly comprises a positioning plate in the interior of each connecting frame, and the positioning plate is installed on the support through the limiting assembly, the bottom end of the positioning plate is attached with a support plate, and the bottom end of the support plate is connected with a plurality of insertion rods, a plurality of barbs are arranged on each insertion rod, the front side and the rear side of the top end of the positioning plate are installed with first hydraulic cylinders, and the bottom output ends of the two first hydraulic cylinders penetrate through the positioning plate and are connected with the front side and the rear side of the top end of the support plate.

[0016] Further, the pressing mechanism comprises two second hydraulic cylinders installed at the top end of the support on both sides, and a fixed ring is rotatably installed on the outer upper side of the sampling tube, the left and right ends of the fixed ring are installed with pressing plates, the other end of the pressing plate is slidably connected with the longitudinal inner wall of the support in the longitudinal direction, and the bottom ends of the two second hydraulic cylinders penetrate through the support and are connected with the top ends of the two pressing plates.

[0017] Further, the two motors are respectively installed at the bottom ends of the two pressing plates, and the transmission assembly comprises a gear and a gear ring, the gear ring is fixedly sleeved on the outer upper side of the sampling tube, and the gear is installed at the bottom output end of the motor, and the gear is engaged with the gear ring.

[0018] Further, the lifting mechanism comprises third hydraulic cylinders, the top end of each second hydraulic cylinder is provided with the third hydraulic cylinder, and the top output end of the two third hydraulic cylinders on the left side and the top output end of the two third hydraulic cylinders on the right side are connected with driving plates, the two driving plates are fixedly connected to the outer walls on the two sides of the support, and the top end of the positioning plate is connected with a sliding plate and is in sliding connection with the support.

[0019] Further, the pushing mechanism comprises a fourth hydraulic cylinder, the fourth hydraulic cylinder is arranged at the middle of the top end of the support, the bottom output end of the fourth hydraulic cylinder penetrates through the support and is inserted into the top end of the sampling pipe, the bottom output end of the fourth hydraulic cylinder is connected with a pressing disc, and the circumferential outer wall of the pressing disc is in sliding contact with the circumferential inner wall of the sampling pipe.

[0020] Further, the limiting assembly comprises an insertion shaft, the middle of the positioning plate is provided with a transverse limiting chamber, both ends of the limiting chamber are provided with sliding holes, the insertion shaft penetrates through the sliding holes, the outer portion of the insertion shaft is provided with a supporting spring, a limiting disc is fixedly sleeved on the outer portion of the insertion shaft close to the support, the supporting spring is abutted between the limiting disc and the inner wall of the movable chamber away from the support, the outer wall of the support is correspondingly provided with an insertion hole, one end of the insertion shaft is inserted into the insertion hole, the other end of the insertion shaft is connected with a pull ring, a pull rod is rotatably arranged on the outer middle portion of the positioning plate, a hook is connected to the lower end of the pull rod, and the pull ring is sleeved on the hook.

[0021] Further, the telescopic mechanism comprises a sleeve with a movable chamber and a movable shaft, one end of the movable shaft is inserted into the movable chamber, and the other end thereof is rotatably connected with the roller, one end of the movable shaft in the movable chamber is connected with a limiting plate, both ends of the limiting plate are connected with a first spring and a second spring, the first spring is located on the upper side of the second spring, the other ends of the first spring and the second spring are connected with the side wall of the movable chamber, the second spring is sleeved on the outer portion of the movable shaft, and the other end of the sleeve is rotatably connected with the adjusting plate.

[0022] Further, longitudinal holes are arranged at the positions around each adjusting plate, a positioning shaft is slidably arranged in each longitudinal hole, and the top end of the positioning shaft is connected with the bottom end of the fixed plate.

[0023] (Three) beneficial effects

[0024] Compared with the prior art, the real-time mobile sampling equipment for soil pollution detection has the following beneficial effects:

[0025] The real-time mobile sampling equipment for soil pollution detection is convenient to move as a whole through the moving assembly, sampling detection at different detection positions is facilitated, the trouble of manually carrying the sampling equipment is reduced, the position of the support after movement can be fixed through the fixing assembly, stable sampling work is facilitated, the sampling tube can be pressed down through the pressing mechanism, the sampling tube can be inserted into the soil for sampling, the sampling tube in the pressing process can be rotated through the rotating motor and the transmission assembly, so that the sampling tube can be more conveniently rotated into the soil for sampling work, the stability of the sampling tube during up-down movement can be ensured through the support ring and the connecting plate, the support can be lifted upward through the lifting mechanism, space below the sampling tube is reserved, the soil in the sampling tube can be pushed downward through the pushing mechanism, and soil sampling is realized. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the present application;

[0027] Figure 2 It is a structural schematic diagram of the present application in the support lifting state;

[0028] Figure 3 It is a right view structural schematic diagram of the present application in the fixing plate, bolt and roller connection;

[0029] Figure 4 It is a structural schematic diagram of the present application Figure 1 It is a local enlarged structural schematic diagram of A in the present application;

[0030] Figure 5 It is a local enlarged structural schematic diagram of B in the present application Figure 1

[0031] Figure 6 It is a bottom view structural schematic diagram of the present application in the two gear and gear ring meshing state.

[0032] Figure 7 It is a structural schematic diagram of the present application in the sleeve, movable shaft, limiting plate, first spring and second spring connection.

[0033] Figure 8 It is a side view structural schematic diagram of the present application in the third hydraulic cylinder, driving plate, positioning plate and first hydraulic cylinder connection.

[0034] ​In the figure: 1, support; 2, sampling tube; 3, rotary knife; 4, rotary motor; 5, support ring; 6, connecting plate; 7, fixed plate; 8, roller; 9, screw; 10, adjusting plate; 11, shock absorber; 12, positioning plate; 13, support plate; 14, insertion rod; 15, barb; 16, first hydraulic cylinder; 17, second hydraulic cylinder; 18, fixed ring; 19, lower pressing plate; 20, gear; 21, gear ring; 22, third hydraulic cylinder; 23, driving plate; 24, fourth hydraulic cylinder; 25, pressure plate; 26, insertion shaft; 27, movable chamber; 28, supporting spring; 29, limit disc; 30, pull ring; 31, lever; 32, hook; 33, sleeve; 34, movable shaft; 35, limit plate; 36, first spring; 37, second spring; 38, positioning shaft; 39, sliding plate. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0036] EMBODIMENT

[0037] Please refer to Figures 1-8 , real-time mobile sampling equipment for soil pollution detection, comprising a support 1, a sampling tube 2 is installed on the support 1, a rotary knife 3 is installed on the bottom end of the sampling tube 2, comprising:

[0038] The moving assembly is installed on the lower part of both sides of the support 1 through the connecting frame, and the moving assembly facilitates the overall movement, facilitates the detection sampling of different detection positions, and reduces the trouble of manual carrying of the sampling equipment;

[0039] The fixing assembly is installed on the support 1, and the fixing assembly can fix the position of the moving support 1, facilitating stable sampling work;

[0040] The lower pressing mechanism for driving the sampling tube 2 is fixed on the support 1, and the output end of the lower pressing mechanism is installed on the top end of the sampling tube 2, and the lower pressing mechanism can press the sampling tube 2, facilitating the insertion of the sampling tube 2 into the soil for sampling;

[0041] Two rotating motors 4 for driving the sampling tube 2 to rotate, two rotating motors 4 are arranged on both sides of the sampling tube 2, and the rotating motor 4 is drivingly connected with the sampling tube through a transmission assembly, and the sampling tube 2 can be driven to rotate during the pressing process through the rotating motor 4 and the transmission assembly, so that the sampling tube 2 can be conveniently screwed into the soil for sampling operation;

[0042] The support ring 5 sleeved outside the sampling tube 2 is fixedly installed on the inner lower side of the support 1 through the connecting plate 6, and the stability of the sampling tube 2 during the up-down movement can be ensured through the cooperation of the support ring 5 and the connecting plate 6;

[0043] The lifting mechanism is installed on both sides of the support 1 based on a fixed assembly, and is used for lifting the height of the support 1, and the lifting mechanism can drive the support 1 to move upwards, so as to reserve space below the sampling tube 2;

[0044] The pushing mechanism is installed in the middle of the top end, and the bottom output end of the pushing mechanism penetrates through the top end of the sampling tube 2 and extends into the inside of the sampling tube 2, and the soil in the inside of the sampling tube 2 can be pushed out downwards through the pushing mechanism, so as to realize the collection of soil sampling.

[0045] Further, the moving assembly comprises a fixed plate and a connecting frame 7, the connecting frame is installed on the lower end of the support 1, and the other end of the connecting frame is provided with the fixed plate 7, the front side and the rear side of the lower side of the fixed plate 7 are provided with rollers 8, and the middle part of the fixed plate 7 is threadedly connected with a screw rod 9, the lower end of the screw rod 9 is rotatably connected with an adjusting plate 10, the front end and the rear end of the adjusting plate 10 are rotatably installed with telescopic mechanisms, the other end of the two telescopic mechanisms on the front side is rotatably connected with the rollers 8 on the front side, the other end of the two telescopic mechanisms on the rear side is rotatably connected with the rollers 8 on the rear side, the left side and the right side of the roller 8 are provided with shock absorbers 11, and the other end of the shock absorber 11 is inclined to the screw rod 9 and rotatably installed on the lower end of the fixed plate 7, the height between the fixed plate 7 and the adjusting plate 10 can be adjusted by rotating the screw rod 9, so that the distance between the two rollers 8 can be adjusted, and the use height of the two rollers 8 can be adjusted under the support of the telescopic mechanism and the shock absorber 11, so that the support height of the support 1 can be adjusted according to the flatness of the ground, so that the position of the support 1 can be moved conveniently during use, and the rollers 8 can cope with different bumpy roads through the setting of the telescopic mechanism and the shock absorber 11, so as to realize the damping effect of the support 1.

[0046] As a preferred embodiment, the fixing assembly comprises a positioning plate 12 located inside each connecting frame, and the positioning plate 12 is installed on the support 1 through a limiting assembly, the bottom end of the positioning plate 12 is attached with a supporting plate 13, and the bottom end of the supporting plate 13 is connected with a plurality of insertion rods 14, a plurality of barbs 15 are arranged on each insertion rod 14, the top front side and the top rear side of the positioning plate 12 are both installed with a first hydraulic cylinder 16, and the bottom output ends of the two first hydraulic cylinders 16 pass through the positioning plate 12 and are connected with the top front side and the top rear side of the supporting plate 13, through the pushing of the first hydraulic cylinder 16, the stability between the positioning plate 12 and the support 1 can be ensured through the limiting assembly, the supporting plate 13 can be driven to move downwards, the insertion rods 14 can be inserted into the ground, and the supporting plate 13 can be in close contact with the ground, so that the whole can be stably inserted into the ground through the fixing assembly, the stable placement of the support 1 is realized, through the barbs 15, the stability of the insertion rods 14 inserted into the soil is ensured, and the insertion rods 14 are difficult to be pulled out of the ground without external force.

[0047] On the basis of the foregoing solution, the lower pressing mechanism comprises two second hydraulic cylinders 17 installed at the left and right sides of the top end of the support 1, and the outer upper side of the sampling tube 2 is rotationally installed with a fixed ring 18, the left and right ends of the fixed ring 18 are both installed with a lower pressing plate 19, the other end of the lower pressing plate 19 is slidingly connected with the longitudinal inner wall of the support 1 in the longitudinal direction, the bottom ends of the two second hydraulic cylinders 17 penetrate through the support 1 and are respectively connected with the top ends of the two lower pressing plates 19, the extension action of the two second hydraulic cylinders 17 can push the two lower pressing plates 19 to move downward, thereby driving the sampling tube 2 to move downward, the rotational connection between the fixed ring 18 and the sampling tube 2 ensures the rotational use effect of the sampling tube 2, the two motors are respectively installed at the bottom ends of the two lower pressing plates 19, the transmission assembly comprises a gear 20 and a gear ring 21, the gear ring 21 is fixedly sleeved on the outer upper side of the sampling tube 2, and the gear 20 is installed at the bottom output end of the motor, the gear 20 is engaged with the gear ring 21, the rotation of the motor drives the gear 20 to rotate, thereby driving the gear ring 21 to rotate, so that the sampling tube 2 and the fixed ring 18 relatively rotate, the sampling tube 2 is rotated while being pressed downward by the lower pressing mechanism, which more conveniently enables the sampling tube 2 to be screwed into the ground for sampling work, wherein two motors are arranged at the two sides of the sampling tube 2 to ensure the rotational driving capacity of the sampling tube 2, the lifting mechanism comprises a third hydraulic cylinder 22, the top end of each second hydraulic cylinder 17 is installed with the third hydraulic cylinder 22, and the top output ends of the two third hydraulic cylinders 22 located at the left side and the top output ends of the two third hydraulic cylinders 22 located at the right side are both connected with a driving plate 23, the two driving plates 23 are respectively fixedly connected on the two side outer walls of the support 1, the top end of the positioning plate 12 is connected with a sliding plate 39, and the sliding plate 39 is slidingly connected with the support 1, when the support 1 needs to be lifted, the third hydraulic cylinders 22 are started to extend, thereby enabling the driving plate 23 and the support 1 to move upward, under the sliding cooperation of the sliding plate 39 and the support 1, the support 1 can be stably lifted, thereby enabling the sampled sampling tube 2 to be lifted to a high place, so that the lower end of the sampling tube 2 has space left for placing a receiving tube used for detection, and the receiving tube is used in combination with the pushing mechanism for discharging, the pushing mechanism comprises a fourth hydraulic cylinder 24, the fourth hydraulic cylinder 24 is installed at the middle of the top end of the support 1, the bottom output end of the fourth hydraulic cylinder 24 penetrates through the support 1 and is inserted into the top end of the sampling tube 2, the bottom output end of the fourth hydraulic cylinder 24 is connected with a pressure plate 25, and the circumferential outer wall of the pressure plate 25 is in sliding contact with the circumferential inner wall of the sampling tube 2, when sampling is completed, the sampling tube 2 is pulled out from the soil outward by reversely rotating the motor, then the support 1 and the sampling tube 2 are moved upward to a high place by the lifting mechanism, then a receiving tube used for detection is placed below the sampling tube 2, and then the fourth hydraulic cylinder 24 is extended downward to push the pressure plate 25 to move downward, the pressure plate 25 moving downward,The pushed sampling soil is stretched out from the inside of the sampling tube 2 and transported to the inside of the receiving tube for detection and cleaning of the inside of the sampling tube 2.

[0048] Secondly, the limiting assembly comprises an insertion shaft 26, the middle part of the positioning plate 12 is provided with a transverse limiting chamber, both ends of the limiting chamber are provided with sliding holes, the insertion shaft 26 penetrates through the sliding holes, the outer part of the insertion shaft 26 is sleeved with a supporting spring 28, a limiting disc 29 is fixedly sleeved on the outer part of the insertion shaft 26 close to one side of the support 1, the supporting spring 28 is abutted between the limiting disc 29 and the inner wall of the movable chamber 27 away from the support 1, the outer wall of the support 1 is correspondingly provided with a insertion hole, one end of the insertion shaft 26 is inserted into the insertion hole, the other end of the insertion shaft 26 is connected with a pull ring 30, a pull rod 31 is rotatably installed on the outer end middle part of the positioning plate 12, a hook 32 is connected to the lower end of the pull rod 31, the pull ring 30 is sleeved on the hook 32, under the cooperation of the elastic force of the supporting spring 28 and the limiting disc 29, the insertion shaft 26 can be inserted into the insertion hole, so as to ensure the stable connection between the positioning plate 12 and the support 1, and under the sliding connection between the sliding plate 39 and the support 1, the positioning plate 12 cannot be separated from the support 1, which can assist to ensure the stable use of the positioning plate 12, when the support 1 needs to be lifted, the pull rod 31 is rotated, the hook 32 pulls the pull ring 30 to pull out the insertion shaft 26 outward, so that the support 1 can be separated from the fixing assembly and lifted upward, under the condition that the whole is stably fixed in the soil, the height of the support 1 is lifted;

[0049] The telescopic mechanism comprises a sleeve 33 with a movable chamber 27 and a movable shaft 34, one end of the movable shaft 34 is inserted into the movable chamber 27, and the other end is rotatably connected with the roller 8, the end of the movable shaft 34 inside the movable chamber 27 is connected with a limiting plate 35, and the two ends of the limiting plate 35 are respectively connected with a first spring 36 and a second spring 37, the first spring 36 is located on the upper side of the second spring 37, and the other end of the first spring 36 and the second spring 37 is connected with the side wall of the movable chamber 27, and the second spring 37 is sleeved outside the movable shaft 34, the other end of the sleeve 33 is rotatably connected with the adjusting plate 10, by using the first spring 36 and the second spring 37, when the movable shaft 34 moves telescopically inside the sleeve 33, one of the first spring 36 and the second spring 37 will be compressed, and the other will be lengthened, so that the limiting plate 35 can be continuously reset, so that when the shock absorber 11 is used, the shock absorber 11 can be effectively provided with damping, and the roller 8 is prevented from jumping randomly under the action of the shock absorber 11, and a longitudinal hole is arranged at each position around the adjusting plate 10, a positioning shaft 38 is slidably installed in each longitudinal hole, and the top end of the positioning shaft 38 is connected with the bottom end of the fixed plate 7, by the sliding cooperation between the positioning shaft 38 and the longitudinal hole, when the relative distance between the fixed plate 7 and the adjusting plate 10 is adjusted by the rotating screw 9, the adjusting plate 10 can be prevented from rotating with the screw 9, and the use reliability is ensured.

[0050] It should be further pointed out that the rotating connection used in the present application is in the rotating view angle in the drawings, and the sliding connection structure used in the present application is the sliding cooperation of dovetail type sliding block and dovetail type sliding groove, which realizes sliding without separation, and the observation ruler is further arranged outside the lower side of the sampling tube 2, the observation ruler is circularly sleeved outside the sampling tube 2, and the observation ruler is fixedly connected with the connecting plate 6 through a support rod, the outside of the sampling tube 2 is provided with a scale, and the bottom end of the sampling tube 2 is taken as the zero scale line, so that the sampling depth of the sampling tube 2 inserted into the ground can be adjusted by observing the scale position of the observation ruler on the sampling tube 2.

[0051] In summary, the real-time mobile sampling device for soil pollution detection, in use, first adjusts the use height of the rollers 8 by rotating the screw rod 9 according to the road conditions at the detection position, to prevent the bottom end of the support 1 from touching the ground, and because of the telescopic nature of the telescopic mechanism, the adjustment of the height of the rollers 8 will not be affected, after adjusting to the appropriate use height, under the cooperation of the telescopic mechanism and the shock absorber 11, the whole is pushed to move on the soil, which can effectively reduce the bumping and shock absorption, wherein the shock absorber 11 is a conventional component purchased on the market, and according to the structural characteristics of the telescopic mechanism, the telescopic mechanism also has certain shock absorption and reset ability, so that the shock absorption function of the rollers 8 can be effectively realized, after reaching the detection position, rotate the screw rod 9 to make the adjusting plate 10 move downward, so that the two rollers 8 on one side are opened, the height between the support 1 and the ground is lowered, and the support 1 is in contact with the ground, because the telescopic mechanism has telescopic nature, when the position of the telescopic mechanism is relatively horizontal, under the action of the gravity of the support 1, the telescopic mechanism can be elongated, so that the support 1 is in contact with the ground, the corresponding hydraulic station is installed on the support 1 before use, and the first hydraulic cylinder 16, the second hydraulic cylinder 17, the third hydraulic cylinder 22 and the fourth hydraulic cylinder 24 are connected with the hydraulic station through oil lines to ensure telescopic use, and at the same time, the power supply for field operation is provided, then by opening the first hydraulic cylinder 16, the support plate 13 can be driven to move downward, the plurality of inserting rods 14 are inserted into the ground, and the support plate 13 is in close contact with the ground, so that the whole can be stably inserted into the ground through the fixing assembly to realize stable placement of the support 1, after the support 1 is stable, the second hydraulic cylinder 17 is opened to push the sampling pipe 2 to move downward, and at the same time, the two motors are opened to drive the sampling pipe 2 to rotate, so that the sampling pipe 2 is slowly screwed into the soil for sampling, after sampling is completed, the motor is reversely rotated, and at the same time, the second hydraulic cylinder 17 is retracted to pull out the sampling pipe 2 to the original position, then the wobble lever 31 is pulled out, the inserting shaft 26 is pulled out at the same time, the third hydraulic cylinder 22 is opened to push the support 1 and the sampling pipe 2 upward to a height, then the receiving pipe for detection is placed directly below the sampling pipe 2, and then the fourth hydraulic cylinder 24 is elongated downward to push the pressure plate 25 to move downward, the soil after sampling is pushed out of the sampling pipe 2 and transported into the receiving pipe through the downward moving pressure plate 25, for subsequent detection.

[0052] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A real-time mobile sampling device for soil pollution detection, comprising a support (1), a positioning plate (12) and a roller (8), a sampling tube (2) is installed on the support (1), a rotary knife (3) is installed on the bottom end of the sampling tube (2), characterized in that, It comprises: a moving assembly installed at the lower area of both sides of the support (1) through a connecting frame; a fixing assembly installed on the support (1); a pressing mechanism for driving the sampling tube (2), which is fixed on the support (1), and the output end of the pressing mechanism is installed at the top end of the sampling tube (2); two rotating motors (4) for driving the sampling tube (2) to rotate, which are arranged at both sides of the sampling tube (2), and the rotating motors (4) are in driving connection with the sampling tube through a transmission assembly; a supporting ring (5) sleeved outside the sampling tube (2), which is fixedly installed at the inner lower side of the support (1) through connecting plates (6) at both ends; a lifting mechanism installed at both sides of the support (1) based on the fixing assembly, which is used for lifting the height of the support (1); a pushing mechanism installed at the middle part of the top end of the support (1), and the bottom output end of the pushing mechanism penetrates through the top end of the sampling tube (2) and extends into the inside of the sampling tube (2); a limiting assembly, which comprises a plug shaft (26), the middle part of the positioning plate (12) is provided with a transverse limiting cavity, both ends of the limiting cavity are provided with sliding holes, the plug shaft (26) penetrates through the sliding holes, a supporting spring (28) is sleeved outside the plug shaft (26), a limiting disc (29) is fixedly sleeved outside the plug shaft (26) near the side of the support (1), the supporting spring (28) is abutted between the limiting disc (29) and the inner wall of the movable cavity (27) away from the support (1), a plug hole is correspondingly arranged on the outer wall of the support (1), one end of the plug shaft (26) is inserted into the plug hole, the other end of the plug shaft (26) is connected with a pull ring (30), a pull rod (31) is rotatably installed on the outer middle upper side of the positioning plate (12), a hook (32) is connected with the lower end of the pull rod (31), the pull ring (30) is sleeved on the hook (32); a telescopic mechanism, which comprises a sleeve (33) with a movable cavity (27) and a movable shaft (34), one end of the movable shaft (34) is inserted into the movable cavity (27), and the other end thereof is rotatably connected with the roller (8), a limiting plate (35) is connected with one end of the movable shaft (34) inside the movable cavity (27), the limiting plate (35) is connected with a first spring (36) and a second spring (37) at both ends, the first spring (36) is located on the upper side of the second spring (37), the other ends of the first spring (36) and the second spring (37) are connected with the side wall of the movable cavity (27), the second spring (37) is sleeved outside the movable shaft (34), and the other end of the sleeve (33) is rotatably connected with the adjusting plate (10).

2. The real-time mobile sampling device for soil pollution detection according to claim 1, characterized in that, The mobile assembly includes a fixed plate (7) and a connecting frame, the connecting frame is installed at the lower end of both sides of the support (1), and the other end of the connecting frame is provided with the fixed plate (7), the front side and the rear side below the fixed plate (7) are provided with rollers (8), and the middle part of the fixed plate (7) is screw-connected with a screw rod (9), the lower end of the screw rod (9) is rotatably connected with an adjusting plate (10), the front end of the adjusting plate (10) and the rear end are rotatably provided with telescopic mechanisms, the other end of the two telescopic mechanisms on the front side is rotatably connected with the rollers (8) on the front side, the other end of the two telescopic mechanisms on the rear side is rotatably connected with the rollers (8) on the rear side, the left side and the right side of the roller (8) are provided with shock absorbers (11), and the other end of the shock absorber (11) is inclined to the screw rod (9) and rotatably installed at the lower end of the fixed plate (7).

3. The real-time mobile sampling device for soil pollution detection according to claim 2, characterized in that, The fixed assembly includes a positioning plate (12) inside each connecting frame, and the positioning plate (12) is installed on the support (1) through a limiting assembly, the bottom end of the positioning plate (12) is attached with a supporting plate (13), and the bottom end of the supporting plate (13) is connected with a plurality of insertion rods (14), a plurality of barbs (15) are arranged on each insertion rod (14), the top front side and the rear side of the positioning plate (12) are rotatably provided with first hydraulic cylinders (16), and the bottom output ends of the two first hydraulic cylinders (16) pass through the positioning plate (12) and are connected with the top front side and the rear side of the supporting plate (13).

4. The real-time mobile sampling device for soil pollution detection according to claim 3, characterized in that, The pressing mechanism includes two second hydraulic cylinders (17) installed on the left and right sides of the top end of the support (1), and a fixed ring (18) is rotatably installed on the outer upper side of the sampling pipe (2), a pressing plate (19) is rotatably installed on the left and right ends of the fixed ring (18), and the other end of the pressing plate (19) is slidably connected with the longitudinal inner wall of the support (1), the bottom ends of the two second hydraulic cylinders (17) pass through the support (1) and are connected with the top ends of the two pressing plates (19).

5. The real-time mobile sampling device for soil pollution detection according to claim 4, characterized in that, Two motors are installed at the bottom ends of the two pressing plates (19), and the transmission assembly includes a gear (20) and a gear ring (21), the gear ring (21) is fixedly sleeved on the outer upper side of the sampling pipe (2), and the gear (20) is installed on the bottom output end of the motor, and the gear (20) is engaged with the gear ring (21).

6. The real-time mobile sampling apparatus for soil pollution detection according to claim 5, wherein, The lifting mechanism includes a third hydraulic cylinder (22), and the top end of each second hydraulic cylinder (17) is provided with the third hydraulic cylinder (22), and the top output ends of the two third hydraulic cylinders (22) on the left side and the top output ends of the two third hydraulic cylinders (22) on the right side are connected with driving plates (23), and the two driving plates (23) are fixedly connected on the outer walls of the left and right sides of the support (1), the top end of the positioning plate (12) is connected with a sliding plate (39), and the sliding plate (39) is slidably connected with the support (1).

7. The real-time mobile sampling apparatus for soil pollution detection according to claim 6, wherein, The pushing mechanism comprises a fourth hydraulic cylinder (24), the fourth hydraulic cylinder (24) is installed in the middle of the top end of the support (1), the bottom output end of the fourth hydraulic cylinder (24) penetrates through the support (1) and is inserted into the top end of the sampling tube (2) downwards, the bottom output end of the fourth hydraulic cylinder (24) is connected with a pressure plate (25), and the circumferential outer wall of the pressure plate (25) is in sliding contact with the circumferential inner wall of the sampling tube (2).

8. The real-time mobile sampling apparatus for soil pollution detection according to claim 2, wherein, The four circumferential positions of each adjusting plate (10) are provided with longitudinal holes, each longitudinal hole is slidably provided with a positioning shaft (38), and the top end of the positioning shaft (38) is connected with the bottom end of the fixing plate (7).

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