Unmanned single-point surface soil sampling device

Abstract

The invention discloses an unmanned single-point surface soil sampling device, and relates to the field of soil sampling, and the unmanned single-point surface soil sampling device comprises a mechanical dog, a folding assembly and a sampling assembly; a fixed seat is mounted on the mechanical dog through a folding assembly, and the sampling assembly is movably mounted on the fixed seat; the sampling assembly comprises a sampling barrel, a guide rail is rotatably mounted on the fixed seat, a top plate is movably mounted on the guide rail, a sleeve is fixedly mounted at the bottom of the top plate, a hammer block is slidably mounted on the sleeve, a spring sleeves the sleeve between the hammer block and the top plate, and two ends of the spring are respectively connected with the top plate and the hammer block; an electromagnet is fixedly arranged on the hammer block; the sampling barrel is mounted on the sleeve in a sliding manner; a driving assembly used for driving the top plate to move is mounted on the guide rail, so that the technical problems that a worker is difficult to reach an area to be sampled to carry out sampling work, soil particles are stirred when a drill bit type soil sampling device is used for sampling, and an original soil stratification structure is difficult to maintain are effectively solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of soil sampling, in particular to a unmanned single-point surface soil sampling device. BACKGROUND

[0002] Soil environmental monitoring refers to determining environmental quality and its trend by measuring the representative value of factors affecting soil environmental quality. Soil sampling device is needed when monitoring soil. Soil sampling device is a special tool for collecting soil samples. Its core function is to obtain representative soil samples to support soil composition analysis and pollution detection.

[0003] As disclosed in the patent with the publication number CN211602475U, a soil sampling device for soil monitoring is disclosed, which relates to the field of soil detection. The soil sampling device for soil monitoring includes a sampling box. The upper part of the sampling box includes a monitor. The lower part of the monitor is fixedly connected with the upper part of the sampling box. The soil sampling device for soil monitoring is provided with a rotating shaft, a rotating plate, a rotating handle, a movable block, a gear, a chain, a lapping block, a vertical rod, a monitoring box, a sliding groove, a rubber pad, a monitoring block, a sampling drill bit and a sampling plate. The movable block is held by hand to rotate, thereby driving the rotating plate and the rotating shaft to rotate, thereby driving the gear arranged on the inner wall of the sampling box to engage in the chain, thereby driving the lapping block and the vertical rod to slide up and down, thereby driving the sampling drill bit and the sampling plate to move up and down, and the sliding groove and the rubber pad are fixedly connected in the monitoring box.

[0004] However, the above-mentioned patent has the following disadvantages in use: 1. The above-mentioned patent needs to be placed at the position where soil sampling is needed by manual operation, but it is not easy for the staff to reach the sampling area for sampling in areas with high soil pollution and areas with radiation. 2. When analyzing the content change of pollutants in different soil layers or judging the migration depth and diffusion path of pollutants, the soil samples need to maintain the original stratigraphic structure of the soil, but the drill bit type soil sampling device will stir the soil particles during sampling, which is difficult to maintain the original stratigraphic structure of the soil. SUMMARY

[0005] In view of the deficiencies of the prior art, the present application provides a unmanned single-point surface soil sampling device, which solves the technical problems raised in the background art.

[0006] The sampling assembly comprises a sampling cylinder, a guide rail is rotationally installed on the fixed seat, a top plate is movably installed on the guide rail, a sleeve is fixedly installed on the bottom of the top plate, a hammer block is slidably installed on the sleeve, a spring is sleeved on the sleeve between the hammer block and the top plate, the two ends of the spring are connected with the top plate and the hammer block respectively, an electromagnet is fixedly arranged on the hammer block, and the sampling cylinder is slidably installed on the sleeve. A driving assembly for driving the movement of the top plate is installed on the guide rail.

[0007] Preferably, the folding assembly comprises a sliding rod and a folding rod, a bottom plate is fixedly installed on the mechanical dog, a pair of fixed plates are oppositely fixedly installed on the bottom plate, the sliding rod is slidably installed between the pair of fixed plates, a fixed seat is hingedly connected to the bottom plate, one end of the folding rod is rotationally connected with the sliding rod, and the other end is hingedly connected with the bottom of the fixed seat.

[0008] Preferably, a first electric push rod is fixedly installed on the bottom plate close to one side of the fixed plate, a sliding plate is slidably installed on the fixed plate, and the retractable end of the first electric push rod is fixedly connected with the sliding plate.

[0009] Preferably, a rotating disc is rotationally installed on the fixed seat, the guide rail is fixedly installed on the rotating disc, a cavity is formed in the fixed seat, a worm is rotationally installed in the cavity, a worm wheel meshing with the worm is also rotationally installed in the cavity, the worm wheel is fixedly connected with the rotating disc, and a first motor for driving the rotation of the worm is fixedly installed on the fixed seat.

[0010] Preferably, a threaded rod is rotationally installed on the guide rail, a second motor for driving the rotation of the threaded rod is fixedly installed on the top of the guide rail, a sliding block is screwed on the threaded rod, the sliding block is slidably connected with the guide rail, a clamping plate is fixedly installed on the sliding block, and the top plate is fixedly connected with the clamping plate.

[0011] Preferably, a second electric push rod is fixedly installed on the guide rail, the retractable end of the second electric push rod penetrates through the sleeve into the sampling cylinder and is fixedly installed with a push plate.

[0012] Preferably, a plurality of strip-shaped sliding holes are arranged in an annular array on the side wall of the sampling cylinder, a plurality of sliding columns matched with the strip-shaped sliding holes are fixedly installed on the push plate in an annular array, and the plurality of sliding columns are slidably connected with the strip-shaped sliding holes.

[0013] Preferably, a camera is fixedly installed on the first motor housing. Advantages​

[0014] The unmanned single-point surface soil sampling device has the following beneficial effects: When the sampling work is not needed, the sampling assembly can be horizontally placed on the back of the mechanical dog for carrying, the sampling assembly can be installed on the fixing seat through the fixing seat, the top plate can be installed on the guide rail through the guide rail, the top plate can be moved by starting the driving assembly, so that the sleeve and the sampling cylinder are moved, the sampling cylinder is quickly lowered to contact the soil, and then the sampling cylinder is controlled to continue to slowly descend, at this time, the sampling cylinder slightly compresses the spring, the electromagnet generates magnetism after being powered on, the electromagnet and the top plate generate adsorption force, so that the hammer block compresses the spring together, the spring compression generates elastic potential energy to release the hammering of the sampling cylinder, the above operation is repeated, the electromagnet is powered on and powered off, so that the hammer block continuously hammers the sampling cylinder, so that the sampling cylinder reaches the depth required for sampling to sample the soil, and then the driving assembly is started again to drive the top plate, the sleeve and the sampling cylinder to be pulled out from the soil to complete sampling; The sampling cylinder is made of 316 steel or 316L, which does not affect the adsorption between the electromagnet and the top plate, has strong corrosion resistance, and avoids stirring soil particles through the sampling method, so that the original layering structure of the soil to be sampled can be maintained; For the area with high soil pollution degree and the area with radiation, the staff cannot easily reach the sampling area to carry out sampling work, the soil sampling assembly is installed on the mechanical dog, so that the mechanical dog reaches the specified area to carry out soil sampling through remote control, and manual carrying of the sampling device is not needed. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structural schematic view of the present application; Figure 2 It is a structural schematic view of the present application in the second direction; Figure 3 It is a structural schematic view of the present application in the third direction; Figure 4 It is a structural schematic view of the fixing seat part in the present application.

[0016] In the figure: 1, mechanical dog; 2, folding assembly; 21, first electric push rod; 22, fixed plate; 23, sliding plate; 24, sliding rod; 25, folding rod; 3, fixed seat; 31, rotating disc; 32, first motor; 33, worm; 34, worm gear; 4, sampling assembly; 41, sampling cylinder; 42, top plate; 43, sleeve; 44, spring; 45, hammer block; 46, electromagnet; 5, driving assembly; 51, second motor; 52, guide rail; 53, threaded rod; 54, sliding block; 55, clamping plate; 61, second electric push rod; 62, push plate; 63, strip-shaped sliding hole; 64, sliding column; 7, camera. DETAILED DESCRIPTION

[0017] 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, wherein the orientation terms such as "upper", "lower" and the like mentioned herein are referred to the orientation of the figure X.

[0018] Please refer to Figures 1-4 The present application provides a technical solution: an unmanned single-point surface soil sampling device, comprising a mechanical dog 1, a folding assembly 2, and a sampling assembly 4; the mechanical dog 1 is provided with a fixed seat 3 through the folding assembly 2, and the sampling assembly 4 is movably installed on the fixed seat 3. The sampling assembly 4 comprises a sampling cylinder 41, the fixed seat 3 is provided with a guide rail 52 rotatably installed thereon, the guide rail 52 is movably provided with a top plate 42, the bottom of the top plate 42 is fixedly provided with a sleeve 43, the sleeve 43 is slidably provided with a hammer block 45, a spring 44 is sleeved on the sleeve 43 between the hammer block 45 and the top plate 42, the two ends of the spring 44 are respectively connected with the top plate 42 and the hammer block 45, the hammer block 45 is fixedly provided with an electromagnet 46, and the sampling cylinder 41 is slidably installed on the sleeve 43. The guide rail 52 is provided with a driving assembly 5 for driving the top plate 42 to move.

[0019] For the area with high degree of soil pollution and the area with radiation, the staff cannot easily reach the sampling area to carry out sampling work, by setting up the mechanical dog 1, the soil sampling assembly 4 can be installed on the mechanical dog 1, so as to control the mechanical dog 1 to reach the designated area for soil sampling by remote control, without manually carrying the sampling device to carry out sampling work, by installing the folding assembly 2, the sampling assembly 4 can be horizontally placed on the back of the mechanical dog 1 when not sampling, so as to be convenient for carrying, by installing the fixing seat 3, the sampling assembly 4 can be installed on the fixing seat 3, by installing the guide rail 52, the top plate 42 can be installed on the guide rail 52, by installing the driving assembly 5, starting the driving assembly 5 can drive the top plate 42 to move, so as to drive the sleeve 43 and the sampling cylinder 41 to move, so that the sampling cylinder 41 quickly drops to contact the soil, then the sampling cylinder 41 is controlled to continue to slowly drop, at this time the sampling cylinder 41 will slightly compress the spring 44, by installing the electromagnet 46, the electromagnet 46 generates magnetism after being powered on, the electromagnet 46 and the top plate 42 generate adsorption force, so as to drive the hammer block 45 to compress the spring 44, the spring 44 is powered off, the elastic potential energy generated by the compression of the spring 44 is released to hammer the sampling cylinder 41, the above operation is repeated, the electromagnet 46 is powered on and powered off, so that the hammer block 45 continuously hammers the sampling cylinder 41, so that the sampling cylinder 41 reaches the depth required for sampling to sample the soil, then the driving assembly 5 is started again to drive the top plate 42, the sleeve 43 and the sampling cylinder 41 to pull out from the soil to complete sampling, the sampling cylinder 41 is made of 316 steel or 316L, which does not affect the adsorption between the electromagnet 46 and the top plate 42, and has strong corrosion resistance, and the sampling method avoids stirring the soil particles, so that the original layer structure of the soil to be sampled can be maintained.

[0020] Further, the folding assembly 2 comprises a sliding rod 24 and a folding rod 25, the mechanical dog 1 is fixedly installed with a bottom plate, a pair of fixed plates 22 are fixedly installed on the bottom plate in opposition, the sliding rod 24 is slidingly installed between the pair of fixed plates 22, the fixing seat 3 is hingedly connected to the bottom plate, one end of the folding rod 25 is rotationally connected with the sliding rod 24, and the other end is hingedly connected with the bottom part of the fixing seat 3.

[0021] By installing the bottom plate, the fixed plate 22 can be installed on the bottom plate, by installing the fixed plate 22, the sliding rod 24 can slide in the sliding opening, by hingedly connecting the fixing seat 3, the fixing seat 3 can be erected to the vertical position to facilitate sampling by the sampling assembly 4, by installing the folding rod 25, the sliding rod 24 can drive the folding rod 25 to swing, so as to drive the fixing seat 3 to be in the vertical or horizontal position.

[0022] Further, the bottom plate close to one side of the fixed plate 22 is fixedly installed with a first electric push rod 21, and the fixed plate 22 is slidably installed with a sliding plate 23, and the first electric push rod 21 is fixedly connected with the sliding plate 23 at the telescopic end.

[0023] By installing the first electric push rod 21, the telescopic end of the first electric push rod 21 drives the sliding plate 23 to move, thereby driving the sliding rod 24 to move.

[0024] Further, the fixed seat 3 is rotatably installed with a rotating disc 31, the guide rail 52 is fixedly installed on the rotating disc 31, the fixed seat 3 is provided with a cavity, the worm 33 is rotatably installed in the cavity, the worm wheel 34 engaged with the worm 33 is also rotatably installed in the cavity, the worm wheel 34 is fixedly connected with the rotating disc 31, and the first motor 32 driving the worm 33 to rotate is fixedly installed on the fixed seat 3.

[0025] By installing the first motor 32, the worm 33 is driven to rotate by starting the first motor 32, the worm wheel 34 is driven to rotate by the engagement of the worm 33 and the worm wheel 34, thereby driving the rotating disc 31 to rotate, and the guide rail 52 can be driven to rotate.

[0026] Further, the guide rail 52 is rotatably installed with a threaded rod 53, the second motor 51 driving the threaded rod 53 to rotate is fixedly installed on the top of the guide rail 52, the sliding block 54 is rotatably connected with the threaded rod 53, the sliding block 54 is slidably connected with the guide rail 52, the clamping plate 55 is fixedly installed on the sliding block 54, and the top plate 42 is fixedly connected with the clamping plate 55.

[0027] By installing the second motor 51, the threaded rod 53 is driven to rotate by starting the second motor 51, thereby driving the sliding block 54 to move, driving the clamping plate 55 to move, and further driving the top plate 42 to move.

[0028] Further, the guide rail 52 is fixedly installed with a second electric push rod 61, and the telescopic end of the second electric push rod 61 penetrates through the sleeve 43 into the sampling cylinder 41 and is fixedly installed with a push plate 62.

[0029] By installing the second electric push rod 61, the second electric push rod 61 is started, the telescopic end of the second electric push rod 61 is elongated to drive the push plate 62 to move, so as to push the soil in the sampling cylinder 41 out.

[0030] Further, the side wall of the sampling cylinder 41 is annularly arrayed with a plurality of strip-shaped sliding holes 63, and the push plate 62 is fixedly installed with a plurality of sliding columns 64 matched with the strip-shaped sliding holes 63 in an annular array manner, and the plurality of sliding columns 64 are slidably connected with the strip-shaped sliding holes 63.

[0031] By opening the strip-shaped sliding hole 63, the sliding column 64 installed on the push plate 62 can slide in the strip-shaped sliding hole 63 when the push plate 62 moves, so that the moving direction of the push plate 62 can be better defined. When sampling, the cylinder is inserted into the soil to extrude the internal air. If the sampling cylinder 41 is completely sealed, the air is compressed to generate positive pressure, which may push the soil and make it difficult to sample. When pulling out, the internal air is easily formed into negative pressure, which causes the soil to be adsorbed on the cylinder wall and difficult to be taken out. The strip-shaped sliding hole 63 can discharge or inhale air in real time, maintain the air pressure balance inside and outside the cylinder, and avoid the soil displacement caused by the pressure difference.

[0032] Further, the first motor 32 housing is fixedly installed with a camera 7.

[0033] By installing the camera 7, the mechanical dog 1 carries the sampling assembly 4 to the designated position, observes the specific situation of the sampling position through the camera 7, and then performs the next step if it is appropriate, or adjusts the position if it is not appropriate until it is appropriate.

[0034] Through the personnel in the art, all electrical components in the case and their adapted power supply are connected by wires, and appropriate controllers should be selected according to the actual situation to meet the control requirements. The specific connection and control sequence should be completed according to the working order between the electrical components, and the detailed connection means is the public known technology in the art. The working principle and process are mainly introduced below, and the electrical control is not described.

[0035] The working principle and use process of the application are as follows: in use, the mechanical dog 1 reaches the sampling position, the first electric push rod 21 is started, the telescopic end of the first electric push rod 21 moves to drive the sliding plate 23 to move, thereby driving the sliding rod 24 to slide in the sliding port to drive the folding rod 25 to swing, so as to adjust the fixed seat 3 to be in a vertical position, the first motor 32 is started to drive the worm 33 to rotate, the worm 33 is engaged with the worm wheel 34 to drive the worm wheel 34 to rotate, thereby driving the rotating disc 31 to rotate to rotate the guide rail 52 and the sampling cylinder 41 to a vertical state, the second motor 51 is started to drive the threaded rod 53 to rotate, thereby driving the sliding block 54 to move to drive the clamping plate 55 and the top plate 42 and the sampling cylinder 41 to move downward quickly, after the bottom of the sampling cylinder 41 contacts the soil, the rotating speed of the second motor 51 is adjusted to slowly insert the lower end of the sampling cylinder 41 into the soil, at this time, the sampling cylinder 41 compresses the spring 44, the electromagnet 46 is powered on to drive the hammer block 45 to move upward, the spring 44 is continuously compressed, then the electromagnet 46 is powered off, the elastic potential energy of the spring 44 is released, the hammer block 45 strikes the sampling cylinder 41, the electromagnet 46 is repeatedly powered on and powered off to make the hammer block 45 continuously strike the sampling cylinder 41 until the sampling cylinder 41 reaches the required sampling depth of 200 mm, the second motor 51 is reversed again to control the sliding block 54 to rise, thereby driving the top plate 42, the sleeve 43 and the sampling cylinder 41 to rise, the sampling cylinder 41 is pulled out from the soil to complete sampling, the rotating disc 31 is rotated to make the sampling assembly 4 change from the vertical direction to the horizontal direction, the first electric push rod 21 is started again to retract the rotating disc 31 to the horizontal position, the mechanical dog 1 is controlled again to move to a suitable position, the second electric push rod 61 is controlled to extend the telescopic end to drive the push plate 62 to move, and the soil sample is pushed out to obtain the sample.

[0036] Although the embodiments of the application have been shown and described, it is to be understood that for the purpose of the present application, the changes, modifications, equivalents, substitutions and variations of the embodiments can be made by those skilled in the art without departing from the spirit and principles of the application, and the scope of the application is defined by the appended claims and their equivalents.

Claims

1. An unmanned single-point surface soil sampling device, characterized in that, It includes a mechanical dog (1), a folding assembly (2), and a sampling assembly (4); the mechanical dog (1) is mounted on a fixed base (3) via the folding assembly (2), and the sampling assembly (4) is movably mounted on the fixed base (3); The sampling assembly (4) includes a sampling tube (41), a guide rail (52) is rotatably mounted on the fixed base (3), a top plate (42) is movably mounted on the guide rail (52), a sleeve (43) is fixedly mounted at the bottom of the top plate (42), a hammer block (45) is slidably mounted on the sleeve (43), a spring (44) is sleeved on the sleeve (43) between the hammer block (45) and the top plate (42), the two ends of the spring (44) are respectively connected to the top plate (42) and the hammer block (45), an electromagnet (46) is fixedly mounted on the hammer block (45), and the sampling tube (41) is slidably mounted on the sleeve (43). A drive assembly (5) for driving the top plate (42) to move is installed on the guide rail (52); The folding assembly (2) includes a slide rod (24) and a folding rod (25). A base plate is fixedly installed on the mechanical dog (1). A pair of fixed plates (22) are fixedly installed on the base plate. The slide rod (24) is slidably installed between the pair of fixed plates (22). A fixed seat (3) is hinged to the base plate. One end of the folding rod (25) is rotatably connected to the slide rod (24), and the other end is hinged to the bottom of the fixed seat (3).

2. The unmanned single-point surface soil sampling device according to claim 1, characterized in that, A first electric push rod (21) is fixedly installed on the bottom plate near one side of the fixed plate (22), and a sliding plate (23) is slidably installed on the fixed plate (22). The telescopic end of the first electric push rod (21) is fixedly connected to the sliding plate (23).

3. The unmanned single-point surface soil sampling device according to claim 1, characterized in that, A rotating disk (31) is rotatably mounted on the fixed base (3), and a guide rail (52) is fixedly mounted on the rotating disk (31). A cavity is provided inside the fixed base (3), and a worm gear (33) is rotatably mounted inside the cavity. A worm wheel (34) that meshes with the worm gear (33) is also rotatably mounted inside the cavity. The worm wheel (34) is fixedly connected to the rotating disk (31). A first motor (32) that drives the worm gear (33) to rotate is fixedly mounted on the fixed base (3).

4. The unmanned single-point surface soil sampling device according to claim 1, characterized in that, A threaded rod (53) is rotatably mounted on the guide rail (52). A second motor (51) that drives the threaded rod (53) to rotate is fixedly mounted on the top of the guide rail (52). A slider (54) is screwed onto the threaded rod (53). The slider (54) is slidably connected to the guide rail (52). A clamping plate (55) is fixedly mounted on the slider (54). The top plate (42) is fixedly connected to the clamping plate (55).

5. The unmanned single-point surface soil sampling device according to claim 1, characterized in that, A second electric push rod (61) is fixedly installed on the guide rail (52). The telescopic end of the second electric push rod (61) passes through the sleeve (43) into the sampling cylinder (41) and is fixedly installed with a push plate (62).

6. The unmanned single-point surface soil sampling device according to claim 5, characterized in that, The sampling tube (41) has a number of strip-shaped sliding holes (63) arranged in a ring on its side wall. The push plate (62) has a number of sliding columns (64) that cooperate with the strip-shaped sliding holes (63) fixedly installed in a ring array. The sliding columns (64) are slidably connected to the strip-shaped sliding holes (63).

7. The unmanned single-point surface soil sampling device according to claim 3, characterized in that, A camera (7) is fixedly installed on the outer casing of the first motor (32).

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