A soil sampling and storage device for environmental detection

Abstract

The present invention discloses a soil sampling and storage device for environmental detection, which relates to the technical field of environmental detection. It includes a connecting seat, a sampling assembly, and an annular plate. Two positioning components for restricting the descending distance of the connecting seat are fixedly connected to the outer arc wall of the annular plate. On both sides of the bottom outer wall of the connecting seat, restricting components for restricting the rotation of the positioning components are fixedly connected, and the positioning components and the restricting components are electrically connected. Cavities are respectively formed in the inner wall of the connecting seat near the two restricting components. Hydraulic oil is filled in both of the two cavities, and the two cavities are respectively communicated with the nearest restricting components. The present invention can, during the sampling process, rotate the sampling head and drill into the ground below the surface. Debris on the surface directly enters the pipe body, and the screw rod is used to convey the debris, and the debris is output through the through holes on the pipe body, thus avoiding the debris cleaning work before the sampling operation and reducing the complexity during the operation process.

Description

Technical Field

[0001] The present invention relates to the technical field of environmental detection, and in particular to a soil sampling and storage device for environmental detection. Background Art

[0002] Soil sampling refers to the method of collecting soil samples. In environmental detection activities, the collection of soil information relies on soil sampling. Before sampling, the profile should be renovated and cleaned, and the top layer of floating soil should be removed. Then, samples should be taken layer by layer from the central typical part from top to bottom. In order to improve the sampling efficiency, a soil sampling and storage device for environmental detection is needed.

[0003] Chinese invention patent with publication number CN109283010B discloses a sampling device for soil detection, including a loading component and a feeding component; a sampling tube is vertically loaded in the feeding component; the loading component includes a pressing member; driving the pressing member to move downward to push the sampling tube deep into the ground to complete sampling; the feeding component includes a feeding cavity and a storage cavity; the storage cavity is communicated with the feeding cavity and also contains a sampling tube; both ends of the sampling tube in the length direction are respectively provided with a clamping groove and a clamping head, and the clamping groove and the clamping head are correspondingly clamped and matched; a pushing component is arranged on one side of the storage cavity away from the feeding cavity; driving the pushing component to push the sampling tube in the storage cavity into the feeding cavity so that its bottom is matched with the top of the previous sunken sampling tube to achieve continuous feeding; the spliced sampling tube not only reduces the volume and increases the portability of the sampling tube, but also can naturally divide the sampled samples into different segments, facilitating sample storage and transfer.

[0004] In this technical solution, the following deficiencies exist:

[0005] In this technical solution, before the sampling work, it is necessary to clean the sundries on the ground through more operation steps, and then carry out the sampling work. During the process of cleaning the sundries, the work of cleaning equipment needs to be relied on, which not only increases the overall weight of the sampling device and causes inconvenience in carrying, but also increases the overall complexity of the sampling work, resulting in low practicability of the device. Summary of the Invention

[0006] The purpose of the present invention is to provide a soil sampling and storage device for environmental detection to solve the technical problem that the overall operation process of sampling work in the prior art is relatively complex.

[0007] The present invention provides a soil sampling and storage device for environmental detection, including a connecting seat, a sampling assembly and an annular plate. Two positioning components for limiting the descending distance of the connecting seat are fixedly connected to the outer arc wall of the annular plate. Limiting components for restricting the rotation of the positioning components are fixedly connected to both sides of the outer wall of the bottom of the connecting seat, and the positioning components and the limiting components are electrically connected. Cavities are provided near the two limiting components on the inner wall of the connecting seat. Hydraulic oil is filled in both cavities, and the two cavities are respectively communicated with the nearest limiting components. The sampling assembly includes a pipe body. A screw rod is rotatably connected to the inner wall of the top of the pipe body. A through hole is provided in the top of the outer arc wall of the pipe body. A sampling head is slidably connected to the outer arc wall of the pipe body. A transmission component for driving the sampling head to slide is fixedly connected to the outer arc wall of the pipe body, and the transmission component is communicated with both cavities. A vertically arranged control seat is fixedly connected to the inner wall of the bottom of the cavity. A boosting component for providing power to the transmission component is slidably connected to the outer wall of the control seat near the transmission component. A power component for driving the pipe body and the screw rod to rotate in opposite directions is fixedly connected to the outer wall of the top of the connecting seat. A storage component for storing samples is fixedly connected to one outer wall of the connecting seat.

[0008] Preferably, the positioning component includes a connecting block fixedly connected to the outer arc wall of the annular plate. A sleeve rod is rotatably connected to the outer wall of one side of the connecting block. A piston block is fixedly connected to the outer wall of one side of the sleeve rod. A sleeve is slidably connected to the outer arc wall of the sleeve rod. A first spring is fixedly connected to the outer wall of one side of the piston block. A pressure sensor is fixedly connected to the inner wall of the top of the sleeve, and the pressure sensor is fixedly connected to the first spring.

[0009] Preferably, the transmission component includes a hydraulic seat fixedly connected to the outer arc wall of the pipe body. Two round holes are provided in the outer wall of the bottom of the hydraulic seat. Transmission rods are slidably connected in both round holes, and both transmission rods are fixedly connected to the sampling head. Two oil delivery pipes are fixedly connected to the outer wall of the top of the hydraulic seat. The tops of the two oil delivery pipes are fixedly connected to the same fixed seat. An annular seat is rotatably connected to the outer wall of the top of the fixed seat, and the annular seat is communicated with the fixed seat.

[0010] Preferably, a hose and a solenoid valve are respectively fixedly connected to both sides of the outer wall of the bottom of the cavity at the two sides of the control seat, and the solenoid valve is close to the boosting component. The hose is communicated with the sleeve. A connecting pipe is fixedly connected to the outer wall of one side of the solenoid valve, and the connecting pipe is communicated with the annular seat.

[0011] Preferably, the boosting component includes a piston plate slidably connected to the outer wall of one side of the control seat. Two second springs are fixedly connected to the outer wall of the top of the piston plate. An electromagnet is fixedly connected to the inner wall of the top of the cavity, and both second springs are fixedly connected to the electromagnet. A damping telescopic rod is fixedly connected to the inner wall of the bottom of the cavity, and the telescopic end of the damping telescopic rod is fixedly connected to the piston plate.

[0012] Preferably, the limiting component includes a limiting seat fixedly connected to the outer wall of the bottom of the connecting seat. A groove is formed in the outer wall of the top of the limiting seat. A rotating shaft is rotatably connected to the inner wall of one side of the groove, and the sleeve and the rotating shaft are fixedly connected. A limiting wheel is rotatably connected to the outer wall of one side of the limiting seat. A rectangular hole is formed in the outer wall of the top of the control seat. A sealing block is slidably connected in the rectangular hole. A connecting rod is fixedly connected to the outer wall of the bottom of the sealing block, and the connecting rod penetrates through the outer wall of the bottom of the connecting seat. An arc-shaped plate is fixedly connected to the outer wall of the bottom of the connecting rod. A plurality of limiting blocks are fixedly connected to the arc-shaped inner wall of the arc-shaped plate at equal intervals. A limiting groove adapted to the limiting blocks is formed in the arc-shaped outer wall of the limiting wheel. A third spring is fixedly connected to the outer wall of the top of the sealing block, and the third spring is fixedly connected to the electromagnet. Connecting holes are formed in the outer walls of both sides of the control seat near the rectangular hole.

[0013] Preferably, the pressure sensor is connected to a controller through a signal line, and the controller is electrically connected to the electromagnet through a signal line.

[0014] Preferably, the power component includes a motor fixedly connected to the outer wall of the top of the connecting seat. A transmission seat is rotatably connected to the outer wall of the bottom of the connecting seat. A circular groove is formed in the outer wall of the bottom of the transmission seat, and the circular groove is rotatably connected to the pipe body. The auger rod is fixedly connected to the inner wall of the top of the circular groove. A gear is rotatably connected to the outer wall of the bottom of the connecting seat. A plurality of tooth grooves are formed in the arc-shaped outer wall of the transmission seat at equal intervals, and the tooth grooves are meshed with the gear. A transmission shaft is fixedly connected to the outer wall of the bottom of the gear. A first sprocket is fixedly connected to the outer wall of the bottom of the transmission shaft. A second sprocket is fixedly connected to the arc-shaped outer wall of the pipe body. The same chain is sleeved on the arc-shaped outer walls of the first sprocket and the second sprocket.

[0015] Preferably, the storage component includes a box body fixedly connected to the outer wall of one side of the connecting seat. A plurality of storage grooves are arranged in the box body at equal intervals. A cover body is hinged to the outer wall of the top of the box body.

[0016] Preferably, handles are fixedly connected to the outer walls of both sides of the connecting seat.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] (1) By setting the pipe body, the auger rod and the power component, the present invention can realize that during the use process, when the power component works, the pipe body and the auger rod are driven to rotate in opposite directions. During the sampling process, the sampling head rotates and drills into the ground below. Debris on the ground directly enters the pipe body, and the debris is conveyed through the auger rod and output through the through holes on the pipe body, thereby avoiding the debris cleaning work before the sampling work and reducing the complexity of the operation process.

[0019] (2) By providing a sleeve, a sleeve rod, a piston block, an annular plate, a pressure sensor and a first spring, the present invention can achieve that during use, the pipe body is made perpendicular to the ground through the handle, and then the device is vertically pressed down. At this time, the annular plate contacts the ground. As the device is pressed down, the connecting seat descends, and the annular plate remains fixed. Furthermore, through the rotation between the rotating shaft on the sleeve and the limiting seat and the rotation between the connecting block and the sleeve rod, the sleeve rod contracts into the sleeve. During the movement of the sleeve rod, the first spring is compressed, causing the pressure sensor to generate a signal. The controller calculates the distance that the connecting seat descends based on the signal intensity of the pressure sensor, thereby achieving the measurement of the distance below the ground surface. After reaching the specified position, the rotation between the sleeve and the limiting seat is restricted through the limiting component, and at the same time, the continuous contraction of the sleeve rod is restricted, realizing the fixation of the height of the connecting seat and facilitating the sampling work.

[0020] (3) By providing a control seat, a sealing block, an electromagnet, a third spring and a pressurizing component, the present invention can achieve that during use, when the sleeve rod contracts into the sleeve, the piston block inputs the hydraulic oil inside the sleeve into the cavity through the hose, causing the hydraulic pressure below the piston plate in the cavity to rise, thereby compressing the second spring. When the signal intensity of the pressure sensor reaches a certain level, the controller turns off the switch of the electromagnet, and the electromagnet loses its magnetism. Under the action of the third spring, the sealing block is driven to descend, blocking the two connecting holes on the control seat. At this time, under the action of the damping telescopic rod, the piston plate slowly descends, and then the sampling head is driven to descend through the operation of the transmission component, completing the sampling work. During the sampling process, there is no need for manual pressing of the sampling device downward, avoiding the inclination of the sampling device and resulting in poor sample quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 is the three-dimensional structural schematic diagram of the present invention;

[0023] Figure 2 is the structural schematic diagram of the sleeve, sleeve rod, connecting block and annular plate of the present invention;

[0024] Figure 3 is the structural schematic diagram of the pipe body and the sampling head of the present invention;

[0025] Figure 4 is of the present invention Figure 3 partial enlarged structural schematic diagram at A in;

[0026] Figure 5 It is a schematic exploded view of the tube body, auger rod, second sprocket and transmission seat of the present invention;

[0027] Figure 6 It is a schematic sectional view of the sleeve of the present invention;

[0028] Figure 7 It is a schematic view of the electromagnet, control seat and piston plate of the present invention;

[0029] Figure 8 It is a schematic front and sectional view of the connection seat of the present invention;

[0030] Figure 9 It is a schematic exploded view of the control seat, third spring, sealing block, connecting rod and arc plate of the present invention;

[0031] Figure 10 It is a schematic exploded view of the hydraulic seat, transmission rod and sampling head of the present invention.

[0032] Reference numerals:

[0033] 1. Connection seat; 101. Handle; 2. Positioning assembly; 201. Sleeve; 202. Sleeve rod; 203. Connection block; 204. Annular plate; 205. Hose; 206. Piston block; 207. First spring; 208. Pressure sensor; 3. Sampling assembly; 301. Tube body; 302. Sampling head; 303. Auger rod; 304. Through hole; 4. Transmission assembly; 401. Annular seat; 402. Fixed seat; 403. Oil delivery pipe; 404. Hydraulic seat; 405. Connecting pipe; 406. Transmission rod; 407. Solenoid valve; 5. Storage assembly; 501. Box body; 502. Storage tank; 503. Cover body; 6. Power assembly; 601. Transmission seat; 602. Gear; 603. Transmission shaft; 604. First sprocket; 605. Chain; 606. Second sprocket; 607. Motor; 7. Limiting assembly; 701. Limiting seat; 702. Electromagnet; 703. Control seat; 704. Rotating shaft; 705. Piston plate; 706. Damping telescopic rod; 707. Second spring; 708. Arc plate; 709. Limiting wheel; 710. Third spring; 711. Sealing block; 712. Connecting rod; 713. Connecting hole. Detailed implementation manners

[0034] The following is combined with Figures 1 to 10As shown in the figure, an embodiment of the present invention provides a soil sampling and storage device for environmental detection, including a connecting seat 1, a sampling component 3, and an annular plate 204. Handle 101 is fixedly connected to the outer walls on both sides of the connecting seat 1. Two positioning components 2 for limiting the descending distance of the connecting seat 1 are fixedly connected to the outer wall of the annular plate 204 in an arc shape. Limiting components 7 for restricting the rotation of the positioning components 2 are fixedly connected to both sides of the bottom outer wall of the connecting seat 1. The positioning components 2 and the limiting components 7 are electrically connected. Cavities are provided near the two limiting components 7 on the inner wall of the connecting seat 1. Hydraulic oil is filled in both cavities, and the two cavities are respectively communicated with the nearby limiting components 7. The sampling component 3 includes a pipe body 301. A screw rod 303 is rotatably connected to the inner wall of the top of the pipe body 301. A through hole 304 is provided on the top of the outer wall of the pipe body 301 in an arc shape. When the sundries and shallow soil on the ground directly contact the screw rod 303 after passing through the sampling head 302, the pipe body 301 and the screw rod 303 rotate in opposite directions to realize the transportation of sundries and output the sundries through the through hole 304 on the pipe body 301, thus avoiding the sundry cleaning work before sampling and reducing the complexity during the operation process. A sampling head 302 is slidably connected to the outer wall of the pipe body 301 in an arc shape. A transmission component 4 for driving the sampling head 302 to slide is fixedly connected to the outer wall of the pipe body 301 in an arc shape. The transmission component 4 is communicated with both cavities. A vertically arranged control seat 703 is fixedly connected to the inner wall of the bottom of the cavity. A pressurizing component for providing power to the transmission component 4 is slidably connected to the outer wall of the control seat 703 near the transmission component 4. A power component 6 for driving the pipe body 301 and the screw rod 303 to rotate in opposite directions is fixedly connected to the outer wall of the top of the connecting seat 1. A storage component 5 for storing samples is fixedly connected to the outer wall of one side of the connecting seat 1.

[0035] Further, the positioning component 2 includes a connecting block 203 fixedly connected to the outer wall of the annular plate 204 in an arc shape. A sleeve rod 202 is rotatably connected to the outer wall of one side of the connecting block 203. A piston block 206 is fixedly connected to the outer wall of one side of the sleeve rod 202. A sleeve 201 is slidably connected to the outer wall of the sleeve rod 202 in an arc shape. A first spring 207 is fixedly connected to the outer wall of one side of the piston block 206. A pressure sensor 208 is fixedly connected to the inner wall of the top of the sleeve 201, and the pressure sensor 208 is fixedly connected to the first spring 207. The pressure sensor 208 is connected to a controller through a signal line. When the sleeve rod 202 slides along the sleeve 201, the sleeve rod 202 drives the piston block 206 to move, compressing the first spring 207, thereby causing the pressure sensor 208 to generate a signal. The contraction distance of the sleeve rod 202 can be calculated through the signal intensity of the pressure sensor 208, and then the distance between the limiting seat 701 and the pipe body 301 can be adjusted. The descending distance of the connecting seat 1 can be calculated through the controller, improving the accuracy of various data during the soil sampling process.

[0036] Further, the transmission assembly 4 includes a hydraulic seat 404 fixedly connected to the arc-shaped outer wall of the pipe body 301. Two round holes are formed in the bottom outer wall of the hydraulic seat 404. Transmission rods 406 are slidably connected in both of the two round holes, and both of the two transmission rods 406 are fixedly connected to the sampling head 302. After the oil pressure in the hydraulic seat 404 rises, it drives the transmission rod 406 to descend, and drives the sampling head 302 to descend through the transmission rod 406. During the descent of the sampling head 302, the soil entering the sampling head 302 does not contact the auger rod 303, so that the sample soil is temporarily stored in the sampling head 302. Two oil pipes 403 are fixedly connected to the top outer wall of the hydraulic seat 404. The tops of the two oil pipes 403 are fixedly connected to the same fixed seat 402. A ring seat 401 is rotatably connected to the top outer wall of the fixed seat 402, and the ring seat 401 communicates with the fixed seat 402. At both sides of the control seat 703 at the bottom outer wall of the cavity, a hose 205 and a solenoid valve 407 are respectively fixedly connected, and the solenoid valve 407 is close to the pressurization assembly. The hose 205 communicates with the sleeve 201. A connecting pipe 405 is fixedly connected to one outer wall of the solenoid valve 407, and the connecting pipe 405 communicates with the ring seat 401. The hydraulic oil in the cavity enters the ring seat 401 through the connecting pipe 405 and the solenoid valve 407, then enters the fixed seat 402, and then enters the hydraulic seat 404 through the oil pipe 403, so that the oil pressure in the hydraulic seat 404 rises.

[0037] Further, the pressurization assembly includes a piston plate 705 slidably connected to one outer wall of the control seat 703. Two second springs 707 are fixedly connected to the top outer wall of the piston plate 705. An electromagnet 702 is fixedly connected to the inner wall of the top of the cavity, and both of the two second springs 707 are fixedly connected to the electromagnet 702, and the controller is electrically connected to the electromagnet 702 through a signal line. A damping telescopic rod 706 is fixedly connected to the inner wall of the bottom of the cavity, and the telescopic end of the damping telescopic rod 706 is fixedly connected to the piston plate 705. After closing the switch of the electromagnet 702, the piston plate 705 is driven to descend under the action of the second spring 707. Under the action of the damping telescopic rod 706, the piston plate 705 descends slowly. When the sealing block 711 completely seals the connection hole 713, the second spring 707 still has partial elastic potential energy. Through the action of the damping telescopic rod 706, it can also prevent the hydraulic oil pressure in the sleeve 201 from being too high, resulting in the instability of the device.

[0038] Furthermore, the limiting component 7 includes a limiting seat 701 fixedly connected to the outer wall of the bottom of the connecting seat 1. A groove is formed on the outer wall of the top of the limiting seat 701. A rotating shaft 704 is rotatably connected to the inner wall of one side of the groove, and the sleeve 201 is fixedly connected to the rotating shaft 704. A limiting wheel 709 is rotatably connected to the outer wall of one side of the limiting seat 701. A rectangular hole is formed in the outer wall of the top of the control seat 703. A sealing block 711 is slidably connected in the rectangular hole. A connecting rod 712 is fixedly connected to the outer wall of the bottom of the sealing block 711, and the connecting rod 712 penetrates through the outer wall of the bottom of the connecting seat 1. An arc-shaped plate 708 is fixedly connected to the outer wall of the bottom of the connecting rod 712. A plurality of limiting blocks are fixedly connected to the arc-shaped inner wall of the arc-shaped plate 708 at equal intervals. A limiting groove adapted to the limiting blocks is formed on the arc-shaped outer wall of the limiting wheel 709. A third spring 710 is fixedly connected to the outer wall of the top of the sealing block 711, and the third spring 710 is fixedly connected to the electromagnet 702. Connecting holes 713 are formed in the outer walls of both sides of the control seat 703 near the rectangular hole. After turning off the switch of the electromagnet 702, the sealing block 711 is driven to descend under the action of the third spring 710, so that the connecting holes 713 on the control seat 703 are sealed, and the space inside the cavity on both sides of the control seat 703 is separated through the control seat 703. At the same time as the sealing block 711 descends, the arc-shaped plate 708 is driven to descend through the connecting rod 712. When the limiting blocks on the arc-shaped plate 708 come into contact with the limiting grooves on the limiting wheel 709, the limiting wheel 709 cannot rotate, thereby restricting the rotation of the rotating shaft 704 and restricting the rotation between the sleeve 201 and the limiting seat 701.

[0039] Furthermore, the power component 6 includes a motor 607 fixedly connected to the outer wall of the top of the connecting seat 1. A transmission seat 601 is rotatably connected to the outer wall of the bottom of the connecting seat 1. A circular groove is formed on the outer wall of the bottom of the transmission seat 601, and the circular groove is rotatably connected to the pipe body 301. The auger rod 303 is fixedly connected to the inner wall of the top of the circular groove. A gear 602 is rotatably connected to the outer wall of the bottom of the connecting seat 1. A plurality of tooth grooves are formed on the arc-shaped outer wall of the transmission seat 601 at equal intervals, and the tooth grooves are meshed with the gear 602. A transmission shaft 603 is fixedly connected to the outer wall of the bottom of the gear 602. A first sprocket 604 is fixedly connected to the outer wall of the bottom of the transmission shaft 603. A second sprocket 606 is fixedly connected to the arc-shaped outer wall of the pipe body 301. The same chain 605 is sleeved on the arc-shaped outer walls of the first sprocket 604 and the second sprocket 606. After turning on the switch of the motor 607, the motor 607 drives the transmission seat 601 to rotate. During the rotation of the transmission seat 601, the auger rod 303 is driven to rotate. At the same time, the tooth grooves on the transmission seat 601 drive the gear 602 to rotate. During the rotation of the gear 602, the first sprocket 604 is driven to rotate through the transmission shaft 603, and then the pipe body 301 is driven to rotate through the chain 605 and the second sprocket 606. Through the transmission of the gear 602, the pipe body 301 and the auger rod 303 rotate in opposite directions.

[0040] Further, the storage component 5 includes a box body 501 fixedly connected to the outer wall of one side of the connecting base 1. A plurality of storage grooves 502 are equidistantly distributed in the box body 501. A cover body 503 is hinged to the outer wall of the top of the box body 501. The soil samples are stored in the storage grooves 502 in the box body 501.

[0041] The specific working method is as follows: When in use, the handle 101 and the connecting seat 1 are used to make the pipe body 301 perpendicular to the ground surface. At this time, the annular plate 204 contacts the ground, assisting the pipe body 301 to maintain a vertical state. Then, the switch of the motor 607 is turned on, and the motor 607 drives the transmission seat 601 to rotate. During the rotation of the transmission seat 601, the auger rod 303 is driven to rotate. At the same time, the tooth groove on the transmission seat 601 drives the gear 602 to rotate. During the rotation of the gear 602, the first sprocket 604 is driven to rotate through the transmission shaft 603. Furthermore, the pipe body 301 is driven to rotate through the chain 605 and the second sprocket 606. Through the transmission of the gear 602, the pipe body 301 and the auger rod 303 rotate in opposite directions. During the rotation of the pipe body 301, the sampling head 302 is driven to rotate. Then, the device is vertically pressed down, causing the connecting seat 1 to descend. The annular plate 204 contacts the ground and always remains in a fixed state. Furthermore, through the rotation between the rotating shaft 704 on the sleeve 201 and the limiting seat 701 and the rotation between the connecting block 203 and the sleeve rod 202, the sleeve rod 202 contracts into the interior of the sleeve 201. During the movement of the sleeve rod 202, the piston block 206 drives the first spring 207 to compress, causing the pressure sensor 208 to generate a signal. The controller calculates the distance that the connecting seat 1 descends based on the signal intensity of the pressure sensor 208, thereby realizing the measurement of the distance between the sampling head 302 and the ground surface. When the piston block 206 moves, the hydraulic oil inside the sleeve 201 is pressed into the cavity through the hose 205 and enters below the piston plate 705 through the connection hole 713 on the control seat 703. After the distance between the sampling head 302 and the ground reaches a certain degree, the controller turns off the switch of the electromagnet 702. Under the action of the third spring 710, the sealing block 711 is driven to descend, causing the connection hole 713 on the control seat 703 to be sealed. Through the control seat 703, the interior of the cavity is separated into spaces on both sides of the control seat 703. At the same time as the sealing block 711 descends, the arc-shaped plate 708 is driven to descend through the connecting rod 712. When the limiting block on the arc-shaped plate 708 contacts the limiting groove on the limiting wheel 709, the limiting wheel 709 cannot rotate, thereby restricting the rotation of the rotating shaft 704 and restricting the rotation between the sleeve 201 and the limiting seat 701. At the same time, through the division of the cavity by the control seat 703, the flow of hydraulic oil is restricted, and the sleeve rod 202 is restricted from continuing to contract into the interior of the sleeve 201, realizing the fixation of the height of the connecting seat 1 and facilitating the sampling work. During the descent of the connecting seat 1, the pipe body 301 and the sampling head 302 descend synchronously. The sundries and shallow soil on the ground surface directly contact the auger rod 303 after passing through the sampling head 302. Due to the reverse rotation of the pipe body 301 and the auger rod 303, the sundries are conveyed through the auger rod 303 and output through the through hole 304 on the pipe body 301, thereby avoiding the sundry cleaning work before the sampling work and reducing the complexity during the operation process. After the controller turns off the switch of the electromagnet 702, while the sealing block 711 descends, the piston plate 705 is driven to descend under the action of the second spring 707.Under the action of the damping telescopic rod 706, the piston plate 705 slowly descends. When the sealing block 711 completely seals the connecting hole 713, the second spring 707 still has partial elastic potential energy. Through the action of the damping telescopic rod 706, it can also prevent the hydraulic oil pressure in the sleeve 201 from being too high, which may cause the device to be unstable. When the switch of the solenoid valve 407 is turned on, under the action of the second spring 707, the piston plate 705 continues to descend, and the hydraulic oil in the space on the side of the control seat 703 close to the piston plate 705 in the cavity is input into the annular seat 401 through the solenoid valve 407 and the connecting pipe 405, enters the fixed seat 402 through the annular seat 401, and then enters the hydraulic seat 404 through the oil delivery pipe 403. After the oil pressure in the hydraulic seat 404 rises, it drives the transmission rod 406 to descend, and drives the sampling head 302 to descend through the transmission rod 406 to complete the sampling work. During the sampling process, there is no need for manual pressing of the sampling device downward, which avoids the inclination of the sampling device and poor sample quality. After the sampling work is completed, the switch of the motor 607 is turned off, so that the pipe body 301 and the auger rod 303 no longer rotate. Then the switch of the electromagnet 702 is turned on, and the electromagnet 702 adsorbs the piston plate 705 and the sealing block 711 to rise, reducing the oil pressure in the hydraulic seat 404. The sampling head 302 is driven to rise along the pipe body 301 through the transmission rod 406, and the soil sample in the sampling head 302 is squeezed by the auger rod 303 and falls off from the sampling head 302. The sample is placed in the storage tank 502 in the box body 501 to complete the sampling and storage work of the soil sample.,

Claims

1. A soil sampling and storage device for environmental detection, comprising a connecting seat (1), a sampling assembly (3) and an annular plate (204), characterized in that: Two positioning components (2) for restricting the descending distance of the connecting seat (1) are fixedly connected to the arc-shaped outer wall of the annular plate (204). Restricting components (7) for restricting the rotation of the positioning components (2) are fixedly connected to both sides of the bottom outer wall of the connecting seat (1). The positioning components (2) and the restricting components (7) are electrically connected. Cavities are provided near the two restricting components (7) on the inner wall of the connecting seat (1). Hydraulic oil is filled in both cavities, and the two cavities are respectively communicated with the nearest restricting components (7). The sampling component (3) includes a tube body (301). A screw rod (303) is rotatably connected to the inner wall of the top of the tube body (301). A through hole (304) is provided in the top of the arc-shaped outer wall of the tube body (301). A sampling head (302) is slidably connected to the arc-shaped outer wall of the tube body (301). A transmission component (4) for driving the sampling head (302) to slide is fixedly connected to the arc-shaped outer wall of the tube body (301). The transmission component (4) is communicated with both cavities. A control seat (703) arranged vertically is fixedly connected to the bottom inner wall of the cavity. A boosting component for providing power to the transmission component (4) is slidably connected to the outer wall of one side of the control seat (703) close to the transmission component (4). A power component (6) for driving the tube body (301) and the screw rod (303) to rotate in opposite directions is fixedly connected to the top outer wall of the connecting seat (1). A storage component (5) for storing samples is fixedly connected to the outer wall of one side of the connecting seat (1).

2. The soil sampling and storage device for environmental detection according to claim 1, characterized in that: The positioning component (2) includes a connecting block (203) fixedly connected to the arc-shaped outer wall of the annular plate (204). A sleeve rod (202) is rotatably connected to the outer wall of one side of the connecting block (203). A piston block (206) is fixedly connected to the outer wall of one side of the sleeve rod (202). A sleeve (201) is slidably connected to the arc-shaped outer wall of the sleeve rod (202). A first spring (207) is fixedly connected to the outer wall of one side of the piston block (206). A pressure sensor (208) is fixedly connected to the inner wall of the top of the sleeve (201), and the pressure sensor (208) is fixedly connected to the first spring (207).

3. The soil sampling and storage device for environmental detection according to claim 2, characterized in that: The transmission component (4) includes a hydraulic seat (404) fixedly connected to the arc-shaped outer wall of the tube body (301). Two round holes are provided in the bottom outer wall of the hydraulic seat (404). Transmission rods (406) are slidably connected in both round holes, and both transmission rods (406) are fixedly connected to the sampling head (302). Two oil delivery pipes (403) are fixedly connected to the top outer wall of the hydraulic seat (404). The tops of the two oil delivery pipes (403) are fixedly connected to the same fixed seat (402). An annular seat (401) is rotatably connected to the top outer wall of the fixed seat (402), and the annular seat (401) is communicated with the fixed seat (402).

4. The soil sampling and storage device for environmental detection according to claim 3, characterized in that: On the outer wall of the bottom of the cavity, on both sides of the control seat (703), a hose (205) and a solenoid valve (407) are fixedly connected respectively. The solenoid valve (407) is close to the pressurizing component. The hose (205) communicates with the sleeve (201). On the outer wall of one side of the solenoid valve (407), a connecting pipe (405) is fixedly connected. The connecting pipe (405) communicates with the annular seat (401).

5. The soil sampling and storage device for environmental detection according to claim 4, characterized in that: The pressurizing component includes a piston plate (705) slidably connected to the outer wall of one side of the control seat (703). On the outer wall of the top of the piston plate (705), two second springs (707) are fixedly connected. On the inner wall of the top of the cavity, an electromagnet (702) is fixedly connected. Both second springs (707) are fixedly connected to the electromagnet (702). On the inner wall of the bottom of the cavity, a damping telescopic rod (706) is fixedly connected. The telescopic end of the damping telescopic rod (706) is fixedly connected to the piston plate (705).

6. The soil sampling and storage device for environmental detection according to claim 5, characterized in that: The limiting component (7) includes a limiting seat (701) fixedly connected to the outer wall of the bottom of the connecting seat (1). On the outer wall of the top of the limiting seat (701), a groove is provided. On the inner wall of one side of the groove, a rotating shaft (704) is rotatably connected. The sleeve (201) is fixedly connected to the rotating shaft (704). On the outer wall of one side of the limiting seat (701), a limiting wheel (709) is rotatably connected. On the outer wall of the top of the control seat (703), a rectangular hole is provided. A sealing block (711) is slidably connected in the rectangular hole. On the outer wall of the bottom of the sealing block (711), a connecting rod (712) is fixedly connected. The connecting rod (712) penetrates through the outer wall of the bottom of the connecting seat (1). On the outer wall of the bottom of the connecting rod (712), an arc-shaped plate (708) is fixedly connected. On the arc-shaped inner wall of the arc-shaped plate (708), a plurality of limiting blocks are fixedly connected at equal intervals. On the arc-shaped outer wall of the limiting wheel (709), a limiting groove adapted to the limiting blocks is provided. On the outer wall of the top of the sealing block (711), a third spring (710) is fixedly connected. The third spring (710) is fixedly connected to the electromagnet (702). On both outer walls of the control seat (703) near the rectangular hole, connection holes (713) are provided.

7. The soil sampling and storage device for environmental detection according to claim 6, characterized in that: The pressure sensor (208) is connected to a controller through a signal line, and the controller is electrically connected to the electromagnet (702) through a signal line.

8. The soil sampling and storage device for environmental detection according to claim 1, characterized in that: The power assembly (6) includes a motor (607) fixedly connected to the outer wall of the top of the connection seat (1). The outer wall of the bottom of the connection seat (1) is rotatably connected to a transmission seat (601). A circular groove is formed in the outer wall of the bottom of the transmission seat (601), and the circular groove is rotatably connected to the pipe body (301). The auger rod (303) is fixedly connected to the inner wall of the top of the circular groove. The outer wall of the bottom of the connection seat (1) is rotatably connected to a gear (602). A plurality of equally spaced tooth grooves are formed in the arc-shaped outer wall of the transmission seat (601), and the tooth grooves are engaged with the gear (602). A transmission shaft (603) is fixedly connected to the outer wall of the bottom of the gear (602). A first sprocket (604) is fixedly connected to the outer wall of the bottom of the transmission shaft (603). A second sprocket (606) is fixedly connected to the arc-shaped outer wall of the pipe body (301). The same chain (605) is sleeved on the arc-shaped outer walls of the first sprocket (604) and the second sprocket (606).

9. The soil sampling and storage device for environmental detection according to claim 1, characterized in that: The storage assembly (5) includes a box body (501) fixedly connected to the outer wall of one side of the connection seat (1). A plurality of equally spaced storage grooves (502) are arranged in the box body (501). A cover body (503) is hinged to the outer wall of the top of the box body (501).

10. The soil sampling and storage device for environmental detection according to claim 1, characterized in that: Handles (101) are fixedly connected to the outer walls of both sides of the connection seat (1).

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