A continuous sampling device for soil and water conservation

Abstract

The invention discloses a soil and water conservation continuous sampling device, which belongs to the technical field of soil and water conservation monitoring, and comprises a box body, a hole is dug on a slope, and the volume of the hole is larger than the volume of the box body, the box body is installed on the side wall of the hole, and the box body is located on the side wall of the higher side of the hole; the box body comprises a base with an opening at the top, an upper cover and an arc-shaped plate with an opening upward; the arc-shaped plate is installed on the side wall of the upper cover, and the side wall of the arc-shaped plate in a vertical state is connected to the side wall of the upper cover, the upper cover and the arc-shaped plate are both installed at the opening of the base, and the top wall of the arc-shaped plate is parallel to the top wall of the base; this scheme arranges a filter cartridge, a second motor and a support plate; the filter cartridge and the support plate can be driven to rotate by the second motor, so that impurities such as branches and leaves in a fluffy state piled together can be timely transferred during the continuous sampling process, and the probability of new water mixing with existing water in the fluffy structure is reduced, thereby improving the accuracy of sampling.

Description

Technical Field

[0001] The invention relates to the technical field of soil and water conservation monitoring, and more specifically to a soil and water conservation continuous sampling device. Background Art

[0002] Soil and water conservation refers to the preventive and control measures taken against soil and water loss caused by natural factors and human activities. Raindrop splashing and runoff erosion are the driving forces of soil and water loss. After regional precipitation, the causes of soil and water loss are dynamically monitored and evaluated by observing the precipitation conditions and soil loss on the surface of the area. This is the basis for soil and water conservation prevention supervision, comprehensive management, ecological restoration and scientific research.

[0003] The Chinese patent with authorization announcement number: CN116358916B discloses a soil and water conservation continuous sampling device, which quickly rotates the centrifugal cylinder to quickly separate the mud and water inside the centrifugal cylinder, improve the speed and efficiency of soil and water separation, and avoid the slow flow of rainwater inside the drainage trough, which causes the overflow of rainwater and soil samples.

[0004] The above patent still has the following shortcomings: the intercepting rods placed in a conical shape block the large volume of dead branches and weeds from the top of the gentle slope, which will cause the dead branches and weeds to gather together to form fluffy structures. Water will accumulate inside these fluffy structures. When new water enters the fluffy structures, the new water will mix with the existing water, and the fluffy structures will block the soil in the water, thereby reducing the amount of soil entering the sampling bottle, resulting in inaccurate sampling.

[0005] Therefore, a soil and water conservation continuous sampling device is proposed. Summary of the invention

[0006] In view of the problems existing in the prior art, the object of the present invention is to provide a soil and water conservation continuous sampling device which can improve the sampling accuracy.

[0007] To solve the above problems, the present invention adopts the following technical solutions.

[0008] A soil and water conservation continuous sampling device comprises a box body, a hole is dug on a slope, and the volume of the hole is larger than the volume of the box body, the box body is installed on the side wall of the hole, and the box body is located on the side wall of the hole on the higher side; the box body comprises a base with an opening at the top, an upper cover, and an arc-shaped plate with an opening facing upward; the arc-shaped plate is installed on the side wall of the upper cover, and the side wall of the arc-shaped plate in a vertical state is connected to the side wall of the upper cover, the upper cover and the arc-shaped plate are both installed at the opening of the base, and the top wall of the arc-shaped plate is parallel to the top wall of the base, so that the arc-shaped plate is located between the upper cover and the top wall of the base;

[0009] A turntable is rotatably installed in the box, and a first motor connected to the center of the turntable at the output end is provided in the box. When the first motor is powered on, it can drive the turntable to rotate. Sampling bottles with top openings are evenly installed on the turntable. A conduit matching the sampling bottle is embedded in the box, and the first motor is a servo motor. Therefore, the turntable can drive the sampling bottle to rotate accurately to the bottom of the conduit to ensure that the water discharged from the conduit can flow into the sampling bottle. The servo motor can control the rotation angle, which is a prior art and will not be repeated.

[0010] A cylindrical guide tube is fixedly installed horizontally on the box body, and the top wall of the guide tube is open, so water can flow into the guide tube through the opening and flow along the guide tube; a filter cartridge is rotatably sleeved on the outer wall of the guide tube, and the top wall of the guide tube is located below the center of the filter cartridge; by setting the filter cartridge, large impurities in the water can be filtered, such as leaves, branches, etc.; and the catheter is inserted into the end face of the guide tube, so the catheter is connected with the guide tube, so the water in the guide tube will flow into the catheter and finally flow into the sampling bottle; support plates are evenly installed on the outer wall of the filter cartridge , and the support plate is a solid structure, and a second motor for driving the filter cartridge to rotate is provided on the box body, wherein the second motor is a stepping motor, which can control the rotation angle, and the stepping motor is a prior art and will not be described in detail; during the rotation of the filter cartridge, the edge of the support plate makes a circular motion, and the edge of the support plate fits with the side wall of the arc plate, and when two adjacent support plates are respectively located on both sides of the top wall of the arc plate, the water and soil containing impurities flow into the space formed between the side wall of the arc plate, the side wall of the box body, and the support plate below the top wall of the arc plate, thereby realizing continuous sampling;

[0011] During the sampling process, the second motor is started to drive the filter cartridge to rotate, and the support plate on the filter cartridge is gradually in an inclined state. A groove is provided on the support plate. When the support plate is in an inclined state, the water in the groove passes through the filter cartridge and flows into the guide tube, and finally flows along the guide tube to the sampling bottle located below the guide tube. In addition, when the water in the groove enters the guide tube, it can prevent the ground water from mixing with the water in the groove, thereby improving the sampling accuracy.

[0012] A filter is slidably installed in the groove, and the filter is used to separate water and soil from larger impurities such as branches and leaves; and a shaking mechanism is provided on the box body to drive the filter to move in the groove. When the support plate is in an inclined state, the shaking mechanism drives the filter away from the support plate, so that in the process of water and soil flowing to the filter cylinder, the contact time between water and soil and the fluffy structure of branches and leaves on the surface of the filter can be shortened, reducing the probability of soil in the water being blocked in the fluffy structure composed of branches and leaves, and improving the accuracy of sampling; the shaking mechanism drives the filter to shake, and then the soil adhering to the fluffy structure composed of branches and leaves can be shaken off, further improving the accuracy of sampling;

[0013] When the support plate is flipped, the impurities with fluffy structure on the surface of the support plate will be out of contact with the support plate. Therefore, when the water flowing along the ground flows to the surface of the support plate again, it can prevent water and soil from mixing, thereby improving the accuracy of sampling, and under the action of gravity, the impurities attached to the surface of the filter will also fall off, so it can prepare for work again, ensuring that water and soil can pass through the filter normally; and during the rotation of the filter cartridge, various parts of the outer wall of the filter cartridge will intermittently move downward and toward the surface of the upper cover, and the impurities on the outer wall of the filter cartridge will fall off.

[0014] A cavity is provided on the guide tube, and exhaust grooves are evenly provided on the side wall of the cavity away from the arc plate. The exhaust grooves are used to blow air toward the inner wall of the filter cartridge away from the arc plate, and an air supply mechanism for providing gas to the cavity is provided on the guide tube; the air supply mechanism supplies air to the cavity, so the cavity is exhausted outwardly through the exhaust grooves, and during the exhaust process of the exhaust grooves, the gas discharged from the exhaust grooves impacts the inner wall of the filter cartridge, thereby blowing out impurities stuck in the holes of the filter cartridge, thereby ensuring the permeability of the filter cartridge. Therefore, when water and soil impact the filter cartridge, it is ensured that water and soil can pass through the filter cartridge into the guide tube, thereby ensuring that sufficient samples can be collected.

[0015] Furthermore, the shaking mechanism includes a first slide groove provided on the side wall of the groove, a rectangular mounting rod is slidably mounted in the first slide groove, and the mounting rod is made of stainless steel material, so that the mounting rod can move along the first slide groove;

[0016] A sleeve rod is movably sleeved on the mounting rod, and a through hole is vertically opened on the sleeve rod, and the mounting rod passes through the through hole, so under the action of the through hole, the sleeve rod can move up and down, and a convex block with an arc surface on the top wall is evenly fixed on the bottom wall of the groove, and the connecting line of the top ends of two adjacent convex blocks is parallel to the first slide groove, and the mounting rod is made of magnetic material, and an elastic rope is jointly installed between the side wall of the first slide groove close to the filter cartridge and the mounting rod, so that the elastic rope can pull the mounting rod to move to one end close to the filter cartridge; a permanent magnet that attracts each other with the mounting rod is embedded on the side wall of the arc plate; when the supporting plate fitted with the arc plate is in a horizontal state, under the action of the attraction of the permanent magnet, the mounting rod will move to the end of the first slide groove away from the filter cartridge, and the elastic rope is in a stretched state, and then the filter cartridge rotates, at this time, the distance between the mounting rod and the permanent magnet gradually increases, and the attraction of the permanent magnet to the mounting rod gradually decreases, so the elastic rope recovers and pulls the mounting rod to move;

[0017] When the elastic rope pulls the mounting rod to move in the first sliding groove, the mounting rod drives the sleeve rod to move along the first sliding groove. During this process, the sleeve rod contacts the protrusion, and the sleeve rod is resisted by the arc surface on the protrusion. At this time, the mounting rod continues to drive the sleeve rod to move. Therefore, under the action of the through hole, the sleeve rod will move along the top wall of the protrusion, that is, the sleeve rod will move up along the top wall of the protrusion. During the upward movement of the sleeve rod, the top wall of the sleeve rod contacts the filter screen. Therefore, during the upward movement of the sleeve rod, the sleeve rod pushes the filter screen away from the support plate until the sleeve rod moves to the top of the protrusion; after the sleeve rod moves to the top of the protrusion, the mounting rod continues to drive the sleeve rod to move. At this time, the sleeve rod moves down along the surface of the protrusion. At this time, the filter screen contacted with the sleeve rod moves in the direction close to the protrusion under the action of gravity; then the sleeve rod moves along the gap between the two adjacent protrusions again, and so on and so forth, thereby enabling the filter screen to shake.

[0018] Furthermore, a guide groove is provided on the guide pipe, the guide pipe is connected with the guide groove, an elastic membrane is fixedly installed in the guide groove, and one end of the elastic membrane close to the guide pipe is higher than the other end of the elastic membrane away from the guide pipe; therefore, the water and soil entering the guide pipe will flow on the surface of the elastic membrane, and the elastic membrane will be deformed under the action of the gravity of the water flow; negative pressure grooves are evenly provided on the bottom wall of the elastic membrane, and when the water and soil fill the guide groove, the elastic membrane is deformed to the maximum extent, at which time the negative pressure groove on the bottom wall of the elastic membrane contacts the bottom wall of the guide groove, and the negative pressure groove is equivalent to a suction cup, so under the combined action of the negative pressure groove and the gravity of the water and soil above the elastic membrane, the elastic membrane will be adsorbed on the bottom wall of the guide groove;

[0019] As the amount of water in the diversion trough decreases, the suction force of the negative pressure trough on the bottom wall of the diversion trough gradually becomes smaller than the elastic force of the elastic membrane, so the elastic membrane will recover. At the moment when the negative pressure trough loses contact with the diversion trough, the elastic membrane will shake, thereby being able to bounce off the water and soil deposited on the surface of the elastic membrane. The inclined elastic membrane exerts a horizontal elastic force on the water and soil, so that the water and soil can gradually flow into the conduit during the shaking of the elastic membrane, thereby improving the sampling accuracy when sampling again.

[0020] Furthermore, the air supply mechanism includes a through hole opened on the side wall of the guide groove, which is connected to the cavity. Therefore, when the elastic membrane is squeezed downward, the gas in the space between the elastic membrane and the bottom wall of the guide groove will flow into the cavity through the through hole, thereby providing gas to the cavity.

[0021] Furthermore, a sleeve with openings at both ends is fixedly mounted on the top wall of the support plate, a slide rod is slidably inserted in the sleeve; and a driving mechanism cooperating with the slide rod is provided on the sleeve, and the slide rod can move freely in the sleeve by setting the driving mechanism;

[0022] Scrapers with bottom walls that fit the surface of the filter are evenly installed on the slide bar. When the drive mechanism drives the slide bar to move, the scraper scrapes the surface of the filter, thereby cleaning up impurities attached to the surface of the filter, ensuring that water and soil can pass through the filter and enter the groove; and when the support plate rotates from a horizontal state to an inclined state, the drive mechanism drives the slide bar to move in a direction away from the filter cylinder. Before the support plate is in a vertical state, the scraper pushes the impurities with fluffy structures accumulated on the surface of the filter to move. The evenly arranged scrapers can break up the impurities with fluffy structures that are accumulated together, making it easier for water and soil accumulated in the impurities with fluffy structures to pass through the filter, further improving the sampling accuracy.

[0023] Furthermore, the driving mechanism includes an annular groove formed on the inner wall of the sleeve, a spring is installed in the annular groove, and an epoxy zinc-rich primer is applied on the surface of the spring to reduce the probability of spring rust, the slide rod passes through the spring, and the two ends of the spring are respectively fixedly connected to the annular groove and the slide rod, when the slide rod is not subjected to external force, the slide rod can be extended from the surface of the support plate under the action of the spring;

[0024] Under the action of the spring, the slide bar extends from the surface of the support plate. Therefore, during the rotation of the support plate, the slide bar will first contact the upper cover. The end of the slide bar away from the sleeve is a mirror surface. Under the action of the mirror surface, the resistance of the slide bar is reduced, so that the support plate can rotate smoothly. Then, during the continuous rotation of the support plate, the slide bar is subjected to resistance along the direction of the sleeve. Therefore, the slide bar will move along the sleeve and move to the surface of the support plate. The spring is stretched and the end face of the slide bar always contacts the surface of the arc plate.

[0025] When the support plate is out of contact with the arc plate, the spring recovers, thereby being able to drive the slide bar to extend from the surface of the support plate again.

[0026] Furthermore, a clamping plate is fixedly mounted on the end of the slide rod, and a clamping groove cooperating with the clamping plate is provided on the side wall of the support plate.

[0027] When the support plate is in a horizontal state, the card plate enters the card slot, and the card plate can contact the side wall of the arc plate, which ensures that the slide bar can be reset only when the support plate is out of contact with the arc plate.

[0028] Furthermore, the scraper includes a mounting plate and a shovel plate. The mounting plate is fixedly connected to the slide rod. A mounting groove parallel to the filter cylinder is opened on the bottom wall of the mounting plate. The mounting groove passes through the side wall on the opposite side of the mounting plate. An elastic block is provided between the shovel plate and the mounting groove. Since the filter screen will shake, the elastic block can be provided to ensure that the shovel plate is always in contact with the filter screen during the shaking process of the filter screen, thereby improving the cleaning effect of the filter screen.

[0029] Furthermore, permanent magnets are evenly embedded on the arc plate, so when the support plate rotates to the surface of the arc plate, the resistance of the mounting rod when it moves to the end of the first slide groove away from the filter cartridge is reduced, thereby ensuring that the mounting rod can move to the end of the first slide groove in a timely manner.

[0030] Furthermore, an opening is provided on the side wall of the box body, and the bottom wall of the opening is in the same plane as the top wall of the upper cover, so that impurities that are out of contact with the filter screen during the rotation of the support plate can flow away with the water flow, thereby ensuring that the support plate can rotate normally.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] (1) This solution is provided with a filter cartridge, a second motor, and a support plate; the second motor can drive the filter cartridge and the support plate to rotate, so that impurities such as branches and leaves in a fluffy state that are piled together can be transferred in a timely manner during the continuous sampling process, reducing the probability of new water mixing with existing water in the fluffy structure, thereby improving the accuracy of sampling;

[0033] (2) This solution provides a mounting rod, a sleeve rod, and a convex block; when the support plate is in an inclined state, the filter screen can be driven to shake, thereby shaking the fluffy structure of the branches and leaves on the surface of the filter screen. During the shaking process, the water and soil accumulated in the fluffy branches and leaves are shaken out, thereby ensuring that a sufficient amount of samples can be collected;

[0034] (3) This scheme provides a sleeve, a spring, a sliding rod, and a scraper. When the support plate is in an inclined state, the fluffy structure of the mixture of branches and leaves on the surface of the support plate can be broken up, thereby facilitating the water and soil samples therein to pass through the filter, thereby further improving the sampling accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a structural schematic diagram of the box body of the present invention;

[0036] Figure 2 It is a schematic cross-sectional structural diagram of the box body of the present invention;

[0037] Figure 3 It is a schematic diagram of the combined structure of the arc plate, the upper cover, the guide tube and the filter cartridge of the present invention;

[0038] Figure 4 For the present invention Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0039] Figure 5 For the present invention Figure 2 A schematic diagram of the enlarged structure at B in the middle;

[0040] Figure 6It is a schematic cross-sectional structural diagram of the flow guide tube of the present invention;

[0041] Figure 7 It is a schematic cross-sectional structural diagram of the sleeve of the present invention;

[0042] Figure 8 It is a schematic diagram of the overall structure of the present invention;

[0043] Fig. 9 It is a combination diagram of the card slot and the card board of the present invention;

[0044] Fig.10 It is a schematic diagram of the combined structure of the catheter and the flow guide tube of the present invention;

[0045] Fig.11 It is a schematic diagram of the combined structure of the flow guide tube, the conduit and the filter cartridge of the present invention;

[0046] Fig.12 It is a combination diagram of the filter screen, the slide bar and the scraper of the present invention.

[0047] Description of the numbers in the figure:

[0048] 1. Box body; 101. Base; 102. Upper cover; 103. Arc plate; 2. Turntable; 3. First motor; 4. Sampling bottle; 5. Catheter; 6. Flow guide tube; 7. Filter cartridge; 8. Support plate; 9. Second motor; 10. Filter screen; 11. Cavity; 12. Exhaust groove; 13. Mounting rod; 14. Sleeve rod; 15. Through hole; 16. Bump; 17. Elastic rope; 18. Permanent magnet; 19. Elastic membrane; 20. Negative pressure groove; 21. Through hole; 22. Sleeve; 23. Slide rod; 24. Scraper; 2401. Mounting plate; 2402. Shovel plate; 2403. Elastic block; 25. Spring; 26. Card plate. DETAILED DESCRIPTION

[0049] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention. Embodiment 1:

[0050] See also Figures 1 to 12A soil and water conservation continuous sampling device comprises a box body 1, a hole is dug on a slope, and the volume of the hole is larger than the volume of the box body 1, the box body 1 is installed on the side wall of the hole, and the box body 1 is located on the side wall of the higher side of the hole; the box body 1 comprises a base 101 with an opening at the top, an upper cover 102 and an arc-shaped plate 103 with an opening facing upward; the arc-shaped plate 103 is installed on the side wall of the upper cover 102, and the side wall of the arc-shaped plate 103 in a vertical state is connected to the side wall of the upper cover 102, the upper cover 102 and the arc-shaped plate 103 are both installed at the opening of the base 101, and the top wall of the arc-shaped plate 103 is parallel to the top wall of the base 101, so the arc-shaped plate 103 is located between the upper cover 102 and the top wall of the base 101;

[0051] A turntable 2 is rotatably installed in the box body 1, and a first motor 3 is provided in the box body 1, whose output end is connected to the center of the turntable 2. When the first motor 3 is powered on, it can drive the turntable 2 to rotate. Sampling bottles 4 with top openings are evenly installed on the turntable 2. A conduit 5 matching the sampling bottle 4 is embedded in the box body 1, and the first motor 3 is a servo motor, so the turntable 2 can drive the sampling bottle 4 to rotate accurately to the bottom of the conduit 5, ensuring that the water discharged from the conduit 5 can flow into the sampling bottle 4. The servo motor can control the rotation angle, which is a prior art and will not be repeated here.

[0052] A cylindrical guide tube 6 is fixedly installed horizontally on the box body 1, and the top wall of the guide tube 6 is open, so water can flow into the guide tube 6 through the opening and flow along the guide tube 6; a filter cartridge 7 is rotatably sleeved on the outer wall of the guide tube 6, and the top wall of the guide tube 6 is located below the center of the filter cartridge 7; by setting the filter cartridge 7, it is possible to filter larger impurities in the water, such as leaves, branches, etc.; and the conduit 5 is inserted into the end face of the guide tube 6, so the conduit 5 is connected with the guide tube 6, so the water in the guide tube 6 will flow into the conduit 5 and finally flow into the sampling bottle 4; support plates 8 are evenly installed on the outer wall of the filter cartridge 7, and the support plates 8 are arranged on the outer wall of the filter cartridge 7. The plate 8 is a solid structure, and the box body 1 is provided with a second motor 9 for driving the filter cartridge 7 to rotate, wherein the second motor 9 is a stepping motor, which can control the rotation angle, and the stepping motor is a prior art and will not be described in detail; during the rotation of the filter cartridge 7, the edge of the support plate 8 makes a circular motion, and the edge of the support plate 8 fits with the side wall of the arc plate 103. When two adjacent support plates 8 are respectively located on the upper and lower sides of the top wall of the arc plate 103, the water and soil containing impurities flow into the space formed by the side wall of the arc plate 103, the side wall of the box body 1, and the support plate 8 located below the top wall of the arc plate 103, thereby realizing continuous sampling;

[0053] During the sampling process, the second motor 9 is started to drive the filter cartridge 7 to rotate, and the support plate 8 on the filter cartridge 7 is gradually in an inclined state. A groove is provided on the support plate 8. When the support plate 8 is in an inclined state, the water in the groove passes through the filter cartridge 7 and flows into the guide tube 6, and finally flows along the guide tube 5 to the sampling bottle 4 located below the guide tube 5. In addition, when the water in the groove enters the guide tube 6, it can prevent the ground water from mixing with the water in the groove, thereby improving the sampling accuracy.

[0054] A filter screen 10 is slidably installed in the groove, and the filter screen 10 is used to separate water and soil from larger impurities such as branches and leaves; and a shaking mechanism is provided on the box body 1 to drive the filter screen 10 to move in the groove. When the support plate 8 is in an inclined state, the shaking mechanism drives the filter screen 10 away from the support plate 8. Therefore, in the process of water and soil flowing to the filter cylinder 7, the contact time between water and soil and the fluffy structure of branches and leaves on the surface of the filter screen 10 can be shortened, reducing the probability of soil in the water being blocked in the fluffy structure composed of branches and leaves, thereby improving the accuracy of sampling; the filter screen 10 is driven to shake by the shaking mechanism, and then the soil adhering to the fluffy structure composed of branches and leaves can be shaken off, further improving the accuracy of sampling;

[0055] When the support plate 8 is flipped, the impurities with fluffy structure on the surface of the support plate 8 will be out of contact with the support plate 8. Therefore, when the water flowing along the ground flows to the surface of the support plate 8 again, it can prevent water and soil from mixing, thereby improving the accuracy of sampling, and under the action of gravity, the impurities attached to the surface of the filter screen 10 will also fall off, so it can prepare for work again, and play a role in ensuring that water and soil can pass through the filter screen 10 normally; and during the rotation of the filter cartridge 7, various parts of the outer wall of the filter cartridge 7 will intermittently move downward and toward the surface of the upper cover 102, and the impurities on the outer wall of the filter cartridge 7 will fall off.

[0056] A cavity 11 is provided on the guide tube 6, and exhaust grooves 12 are evenly provided on the side wall of the cavity 11 away from the curved plate 103. The exhaust grooves 12 are used to blow air toward the inner wall of the filter cartridge 7 away from the curved plate 103, and an air supply mechanism for providing gas to the cavity 11 is provided on the guide tube 6; the air supply mechanism supplies air to the cavity 11, so the cavity 11 is exhausted outwardly through the exhaust grooves 12. During the exhaust process of the exhaust grooves 12, the gas discharged from the exhaust grooves 12 impacts the inner wall of the filter cartridge 7, thereby blowing out impurities stuck in the holes of the filter cartridge 7, thereby ensuring the permeability of the filter cartridge 7. Therefore, when water and soil impact the filter cartridge 7, it is ensured that water and soil can pass through the filter cartridge 7 and enter the guide tube 6, thereby ensuring that a sufficient amount of samples can be collected.

[0057] like Figure 5As shown, the shaking mechanism includes a first slide groove provided on the side wall of the groove, and a rectangular mounting rod 13 is slidably mounted in the first slide groove. The mounting rod 13 is made of stainless steel material, so the mounting rod 13 can move along the first slide groove, and the stainless steel material has strong corrosion resistance;

[0058] A sleeve rod 14 is movably sleeved on the mounting rod 13, and a through hole 15 is vertically opened on the sleeve rod 14. The mounting rod 13 penetrates the through hole 15, so under the action of the through hole 15, the sleeve rod 14 can move up and down, and a convex block 16 with an arc surface on the top wall is evenly fixed on the bottom wall of the groove. The connecting line of the tops of two adjacent convex blocks 16 is parallel to the first slide groove. The mounting rod 13 is made of magnetic material, and an elastic rope 17 is installed between the side wall of the first slide groove close to the filter cartridge 7 and the mounting rod 13, so the elastic rope 17 can pull the mounting rod 13 to move close to the filter cartridge 7. One end of the filter cartridge 7; a permanent magnet 18 is embedded on the side wall of the arc plate 103, which attracts the mounting rod 13; when the support plate 8 fitted with the arc plate 103 is in a horizontal state, under the action of the attraction of the permanent magnet 18, the mounting rod 13 will move to the end of the first slide away from the filter cartridge 7, and the elastic rope 17 is in a stretched state, and then the filter cartridge 7 rotates, at which time the distance between the mounting rod 13 and the permanent magnet 18 gradually increases, and the attraction of the permanent magnet 18 to the mounting rod 13 gradually decreases, so the elastic rope 17 recovers and pulls the mounting rod 13 to move;

[0059] When the elastic rope 17 pulls the installation rod 13 to move in the first slide groove, the installation rod 13 drives the sleeve rod 14 to move along the first slide groove. During this process, the sleeve rod 14 contacts the protrusion 16, and the sleeve rod 14 is resisted by the arc surface on the protrusion 16. At this time, the installation rod 13 continues to drive the sleeve rod 14 to move. Therefore, under the action of the through hole 15, the sleeve rod 14 will move along the top wall of the protrusion 16, that is, the sleeve rod 14 will move up along the top wall of the protrusion 16. During the upward movement of the sleeve rod 14, the top wall of the sleeve rod 14 contacts the filter screen 10. Therefore, during the upward movement of the sleeve rod 14, the sleeve rod 14 pushes the filter screen 10 away from the support plate 8 until the sleeve rod 14 moves to the protrusion 16. When the sleeve rod 14 moves to the top of the protrusion 16, the mounting rod 13 continues to drive the sleeve rod 14 to move, and the sleeve rod 14 moves down along the surface of the protrusion 16. At this time, the filter screen 10 in contact with the sleeve rod 14 moves toward the direction close to the protrusion 16 under the action of gravity; then the sleeve rod 14 moves along the gap between two adjacent protrusions 16, and so on, so that the filter screen 10 can shake.

[0060] like Figure 6As shown, a guide groove is provided on the guide pipe 6, and the guide tube 5 is connected to the guide groove. An elastic membrane 19 is fixedly installed in the guide groove at an angle, and the end of the elastic membrane 19 close to the guide tube 5 is higher than the end of the elastic membrane 19 away from the guide tube 5; therefore, the water and soil entering the guide pipe 6 will flow on the surface of the elastic membrane 19, and under the action of the gravity of the water flow, the elastic membrane 19 will be deformed; negative pressure grooves 20 are evenly provided on the bottom wall of the elastic membrane 19, and when the water and soil fill the guide groove, the elastic membrane 19 is deformed to the maximum extent. At this time, the negative pressure groove 20 on the bottom wall of the elastic membrane 19 contacts the bottom wall of the guide groove, and the negative pressure groove 20 is equivalent to a suction cup, so under the combined action of the negative pressure groove 20 and the gravity of the water and soil above the elastic membrane 19, the elastic membrane 19 will be adsorbed on the bottom wall of the guide groove;

[0061] As the amount of water in the diversion trough decreases, the suction force of the negative pressure trough 20 on the bottom wall of the diversion trough gradually becomes smaller than the elastic force of the elastic membrane 19, so the elastic membrane 19 will recover. At the moment when the negative pressure trough 20 loses contact with the diversion trough, the elastic membrane 19 shakes, thereby being able to bounce off the water and soil deposited on the surface of the elastic membrane 19, and the inclined elastic membrane 19 applies a horizontal elastic force to the water and soil, so that during the shaking process of the elastic membrane 19, the water and soil can gradually flow into the conduit 5, thereby improving the sampling accuracy when sampling again.

[0062] like Figure 4 , Figure 6 As shown, the air supply mechanism includes a through hole 21 opened on the side wall of the guide groove, and the through hole 21 is connected to the cavity 11. Therefore, when the elastic membrane 19 is squeezed downward, the gas in the space between the elastic membrane 19 and the bottom wall of the guide groove will flow into the cavity 11 through the through hole 21, thereby providing gas to the cavity 11.

[0063] like Figure 7 As shown, a sleeve 22 with both ends open is fixedly mounted on the top wall of the support plate 8, and a slide rod 23 is slidably inserted in the sleeve 22; and a driving mechanism cooperating with the slide rod 23 is provided on the sleeve 22, and the slide rod 23 can move freely in the sleeve 22 by setting the driving mechanism;

[0064] Scrapers 24 whose bottom walls are in contact with the surface of the filter screen 10 are evenly installed on the slide bar 23. When the drive mechanism drives the slide bar 23 to move, the scraper 24 scrapes the surface of the filter screen 10, thereby cleaning up the impurities attached to the surface of the filter screen 10 and ensuring that water and soil can pass through the filter screen 10 and enter the groove; and when the support plate 8 rotates from a horizontal state to an inclined state, the drive mechanism drives the slide bar 23 to move in a direction away from the filter cylinder 7. Before the support plate 8 is in a vertical state, the scraper 24 pushes the impurities with a fluffy structure accumulated on the surface of the filter screen 10 to move. The evenly arranged scrapers 24 can break up the impurities with a fluffy structure that are accumulated together, making it easier for water and soil gathered in the impurities with a fluffy structure to pass through the filter screen 10, further improving the sampling accuracy.

[0065] like Figure 7 As shown, the driving mechanism includes an annular groove formed on the inner wall of the sleeve 22, a spring 25 is installed in the annular groove, and an epoxy zinc-rich primer is applied on the surface of the spring 25 to reduce the probability of rust of the spring 25, the slide bar 23 penetrates the spring 25, and the two ends of the spring 25 are respectively fixedly connected to the annular groove and the slide bar 23, when the slide bar 23 is not subjected to external force, the slide bar 23 can be extended from the surface of the support plate 8 under the action of the spring 25;

[0066] Under the action of the spring 25, the slide bar 23 extends from the surface of the support plate 8. Therefore, during the rotation of the support plate 8, the slide bar 23 will first contact the upper cover 102. The end of the slide bar 23 away from the sleeve 22 is a mirror surface. Under the action of the mirror surface, the resistance of the slide bar 23 is reduced, so that the support plate 8 can rotate smoothly. Then, during the continuous rotation of the support plate 8, the slide bar 23 is subjected to resistance along the direction of the sleeve 22. Therefore, the slide bar 23 will move along the sleeve 22 and move to the surface of the support plate 8, and the spring 25 is stretched, and the end face of the slide bar 23 always contacts the surface of the arc plate 103.

[0067] When the support plate 8 is out of contact with the arc plate 103 , the spring 25 recovers, thereby driving the slide bar 23 to extend from the surface of the support plate 8 again.

[0068] like Figure 1 As shown, a clamping plate 26 is fixedly mounted on the end of the slide rod 23 , and a clamping groove cooperating with the clamping plate 26 is formed on the side wall of the support plate 8 .

[0069] When the support plate 8 is in a horizontal state, the card plate 26 enters the card slot, and the card plate 26 can contact the side wall of the arc plate 103 at this time, which ensures that the slide bar 23 can be reset only when the support plate 8 is out of contact with the arc plate 103.

[0070] like Figure 7As shown, the scraper 24 includes a mounting plate 2401 and a shovel plate 2402. The mounting plate 2401 is fixedly connected to the slide rod 23. A mounting groove parallel to the filter cartridge 7 is provided on the bottom wall of the mounting plate 2401. The mounting groove penetrates the side wall on the opposite side of the mounting plate 2401. An elastic block 2403 is provided between the shovel plate 2402 and the mounting groove. Since the filter screen 10 will shake, the elastic block 2403 is provided to ensure that the shovel plate 2402 is always in contact with the filter screen 10 during the shaking process of the filter screen 10, thereby improving the cleaning effect of the filter screen 10.

[0071] like Figure 2 As shown, permanent magnets 18 are evenly embedded on the arc plate 103. Therefore, when the support plate 8 rotates to the surface of the arc plate 103, the resistance of the mounting rod 13 when it moves to the end of the first slide groove away from the filter cartridge 7 is reduced, thereby ensuring that the mounting rod 13 can move to the end of the first slide groove in time.

[0072] like Figure 1 As shown, an opening is provided on the side wall of the box body 1, and the bottom wall of the opening is in the same plane as the top wall of the upper cover 102. Therefore, impurities that are out of contact with the filter screen 10 during the rotation of the support plate 8 can flow away with the water flow, thereby ensuring that the support plate 8 can rotate normally.

[0073] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A soil and water conservation continuous sampling device, comprising a box (1); Features: A turntable (2) is rotatably mounted in the box (1), sampling bottles (4) are evenly mounted on the turntable (2), and a conduit (5) matching with the sampling bottles (4) is embedded in the box (1); A flow guide tube (6) is fixedly mounted horizontally on the box body (1), and the top wall of the flow guide tube (6) is open; a filter cartridge (7) is rotatably sleeved on the outer wall of the flow guide tube (6), and the guide tube (5) is inserted into the end surface of the flow guide tube (6); support plates (8) are evenly mounted on the outer wall of the filter cartridge (7), and a second motor (9) for driving the filter cartridge (7) to rotate is provided on the box body (1); The support plate (8) is provided with a groove, a filter screen (10) is slidably mounted in the groove, and the box body (1) is provided with a shaking mechanism for driving the filter screen (10) to move in the groove; The box body (1) comprises a base (101) with an opening at the top, an upper cover (102), and an arc-shaped plate (103) with an opening facing upward; the arc-shaped plate (103) is mounted on the side wall of the upper cover (102); the upper cover (102) and the arc-shaped plate (103) are both mounted at the opening of the base (101); and the top wall of the arc-shaped plate (103) is parallel to the top wall of the base (101); The guide tube (6) is provided with a cavity (11), and the side wall of the cavity (11) away from the arc plate (103) is evenly provided with exhaust grooves (12), the exhaust grooves (12) are used to blow air toward the inner side wall of the filter cartridge (7) away from the arc plate (103), and the guide tube (6) is provided with an air supply mechanism for providing air to the cavity (11).

2. A soil and water conservation continuous sampling device according to claim 1, characterized in that: The shaking mechanism comprises a first sliding groove formed on a side wall of the groove, a mounting rod (13) being slidably mounted in the first sliding groove, and the mounting rod (13) being made of a stainless steel material; A sleeve rod (14) is movably sleeved on the mounting rod (13), a through hole (15) is vertically opened on the sleeve rod (14), the mounting rod (13) passes through the through hole (15), and bumps (16) are evenly fixedly mounted on the bottom wall of the groove. The mounting rod (13) is made of magnetic material, and an elastic rope (17) is installed between the side wall of the first slide groove close to the filter cartridge (7) and the mounting rod (13); a permanent magnet (18) that attracts the mounting rod (13) is embedded on the side wall of the arc plate (103).

3. A soil and water conservation continuous sampling device according to claim 2, characterized in that: The guide pipe (6) is provided with a guide groove, the catheter (5) is connected to the guide groove, an elastic membrane (19) is fixedly installed in the guide groove at an angle, and an end of the elastic membrane (19) close to the catheter (5) is higher than an end of the elastic membrane (19) away from the catheter (5); negative pressure grooves (20) are evenly provided on the bottom wall of the elastic membrane (19).

4. A soil and water conservation continuous sampling device according to claim 3, characterized in that: The air supply mechanism comprises a through hole (21) formed on a side wall of the guide groove, wherein the through hole (21) is in communication with the cavity (11).

5. A soil and water conservation continuous sampling device according to claim 4, characterized in that: A sleeve (22) with openings at both ends is fixedly mounted on the top wall of the support plate (8), a slide rod (23) is slidably inserted in the sleeve (22); and a driving mechanism cooperating with the slide rod (23) is provided on the sleeve (22); Scrapers (24) are evenly mounted on the slide bars (23).

6. A soil and water conservation continuous sampling device according to claim 5, characterized in that: The driving mechanism comprises an annular groove formed on the inner wall of the sleeve (22), a spring (25) being installed in the annular groove, the slide rod (23) passing through the spring (25), and two ends of the spring (25) being fixedly connected to the annular groove and the slide rod (23) respectively; One end of the sliding rod (23) away from the sleeve (22) is a mirror surface.

7. A soil and water conservation continuous sampling device according to claim 6, characterized in that: A clamping plate (26) is fixedly mounted on the end of the slide rod (23), and a clamping groove cooperating with the clamping plate (26) is provided on the side wall of the support plate (8).

8. A soil and water conservation continuous sampling device according to claim 7, characterized in that: The scraper (24) comprises a mounting plate (2401) and a shovel plate (2402); a mounting groove parallel to the filter cartridge (7) is provided on the bottom wall of the mounting plate (2401); the mounting groove penetrates the side wall on the opposite side of the mounting plate (2401); and an elastic block (2403) is provided between the shovel plate (2402) and the mounting groove.

9. A soil and water conservation continuous sampling device according to claim 8, characterized in that: Permanent magnets (18) are evenly embedded on the arc-shaped plate (103).

10. A soil and water conservation continuous sampling device according to claim 9, characterized in that: An opening is provided on the side wall of the box body (1), and the bottom wall of the opening is in the same plane as the top wall of the upper cover (102).

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