Soil sampler for land treatment

Abstract

The invention relates to the technical field of soil sampling, in particular to a land governance soil sampler which comprises a sampling moving frame and further comprises a rotating base, the rotating base is rotationally installed on the sampling moving frame, and a separation control box is fixedly installed on the rotating base; the soil sampling mechanism is respectively connected with the sampling moving frame and the separation control box, and the soil sampling mechanism comprises a lifting sleeve, a sampling control cylinder, a separation control assembly and a rotary driving assembly; according to the soil sampler for land treatment, not only can subsequent sampling work be prevented from being influenced by collision damage or deformation of a plurality of sampling devices, but also the precision of a detection result is prevented from being influenced by the fact that soil at other positions enters the sampling devices through reserved holes and the sampled soil is doped with the soil at the other positions.

Description

Technical Field

[0001] The invention relates to the technical field of soil sampling, in particular to a soil sampler for land management. Background Art

[0002] Land governance soil sampler is an instrument specially used for collecting soil samples, which plays an important role in land governance and environmental monitoring. With the rapid development of industrialization and urbanization, the development and utilization of land resources have become increasingly intensified, leading to increasingly serious problems such as land quality decline and environmental pollution. In order to protect land resources and improve the ecological environment, governments of various countries have increased their investment in land governance. In this process, soil samplers have become an important tool that can help researchers and engineers better understand the condition of the soil and thus develop more scientific and reasonable land governance plans. The use of soil samplers can be traced back to the 19th century, when they were mainly used for soil research in the agricultural field. With the advancement of science and technology, the types and functions of soil samplers are constantly enriched and improved. Modern soil samplers can not only collect soil samples of different depths and types, but also realize automated and intelligent operations, which greatly improves the efficiency and accuracy of sampling.

[0003] During use, the existing soil sampler for land management needs to extend multiple sampling heads into the soil at the same depth to obtain multiple groups of samples, thereby ensuring the accuracy of subsequent test results. However, if multiple sampling heads extend beyond the surface of the drill rod to form a convex portion, when the sampling heads are extended into the soil along with the drill rod, it is easy for multiple sampling heads to be damaged or deformed by collision, affecting subsequent sampling work. If multiple sampling heads are retracted inside the drill rod and then extended to the outside for sampling after reaching the specified position, in this way, holes will be reserved on the drill rod to facilitate the extension of the sampling heads to the outside. However, during the downward movement of the drill rod, soil from other positions may enter the drill rod through the reserved holes, which may not only easily cause the holes to be blocked, affecting the subsequent smooth extension of the sampling heads, but may also cause the sampled soil to be mixed with soil from other positions, thereby affecting the accuracy of the test results and being inconvenient to use. Therefore, in view of the above situation, it is urgent to develop a soil sampler for land management to overcome the shortcomings in current practical applications. Summary of the invention

[0004] The object of the present invention is to provide a soil sampler for land management to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: A soil sampler for land management, comprising a mobile sampling frame, and further comprising: A rotating base, the rotating base is rotatably mounted on the sampling mobile rack, and a separation control box is also fixedly mounted on the rotating base; and a soil sampling mechanism, which is respectively connected to the sampling mobile frame and the separation control box, wherein the soil sampling mechanism comprises a lifting sleeve, a sampling control cylinder, a separation control component and a rotation drive component; The separation control assembly is connected to the separation control box, and a lifting sleeve and a sampling control sleeve are installed on the separation control assembly. The sampling control sleeve is sleeved in the lifting sleeve and slidably connected with the lifting sleeve, and a drill bit is fixedly installed at the bottom end of the sampling control sleeve; A plurality of sampling telescopic parts are evenly arranged at the bottom of the lifting sleeve, and a sampling device is arranged at each of the sampling telescopic parts. The rotating driving assembly is respectively connected to the sampling mobile frame and the lifting sleeve.

[0006] As a further solution of the present invention: it also includes: a telescopic plugboard, the number of the telescopic plugboard is four, and one end of the four telescopic plugboards is fixedly connected to the sampling mobile rack; And an L-shaped fixed leg, the L-shaped fixed leg is slidably connected to the other end of the telescopic plug plate, wherein the telescopic plug plate is inserted into the L-shaped fixed leg and is slidably connected to the L-shaped fixed leg.

[0007] As a further solution of the present invention: the rotary drive assembly comprises: A support plate, one end of which is fixedly connected to the sampling mobile frame, wherein the number of the support plates is two, and the two support plates are respectively located on both sides of the lifting sleeve; A driving motor, wherein the driving motor is fixedly connected to the other end of the supporting plate; And a limit transmission unit, wherein the limit transmission unit is respectively connected with the sampling mobile frame, the support plate and the lifting sleeve.

[0008] As a further solution of the present invention: the limit transmission unit includes: A limiting tooth column, the two ends of which are rotatably connected to the sampling mobile frame and the support plate respectively; and a driven gear, wherein the driven gear is fixedly mounted on the lifting sleeve, wherein the driven gear is meshingly connected with the limiting tooth column, and the driven gear is also slidably connected with the limiting tooth column.

[0009] As a further solution of the present invention: the separation control component comprises: A telescopic cylinder, the telescopic cylinder is fixedly mounted on the separation control box, and an output end of the telescopic cylinder is fixedly connected to the lifting sleeve; A chute opening, wherein the number of the chute openings is multiple, the multiple chute openings are evenly opened on the lifting sleeve, and the multiple chute openings are all located in the separation control box; And a transmission support rod, the number of which is equal to the number of the slide slot openings, one end of each of the transmission support rods is fixedly connected to the inner wall of the separation control box, and the other end of the transmission support rod passes through the slide slot opening and is fixedly connected to the sampling control cylinder.

[0010] As a further solution of the present invention: the sampling device is located in the cavity opened on the sampling control cylinder and is arranged opposite to the plurality of sampling telescopic parts; Wherein, the sampling device comprises a supporting baffle, an extension drive assembly, a telescopic guide assembly and a sampling head; The supporting partition is fixedly mounted in a cavity on the sampling control tube, the extending driving assembly is located in the cavity on the sampling control tube and is fixedly connected to the supporting partition, the telescopic guiding assembly is respectively connected to the supporting partition and the extending driving assembly, and a sampling head is detachably mounted on the telescopic guiding assembly.

[0011] As a further solution of the present invention: the extension drive assembly includes: A telescopic rod, the telescopic rod is fixedly installed in the cavity, and an airflow control cylinder is fixedly installed on the other end of the telescopic rod; A guide piston rod, one end of which is fixedly connected to the support baffle, and the other end of which is inserted into the airflow control cylinder and slidably connected to the airflow control cylinder; And a movable connecting rod, the number of the movable connecting rods is multiple, the multiple movable connecting rods are evenly distributed on the airflow control cylinder, and are all rotatably connected to the airflow control cylinder.

[0012] As a further solution of the present invention: the telescopic guide assembly comprises: A guide slot, wherein the number of the guide slots is multiple, and the multiple guide slots are evenly arranged on the supporting partition; A translation member, the number of the translation members is equal to the number of the guide slots, and the plurality of translation members are respectively slidably connected to the plurality of guide slots and are respectively rotatably connected to the plurality of movable connecting rods; A U-shaped guide baffle, the U-shaped guide baffle is fixedly mounted on the supporting baffle; And a telescopic tube, one end of which is fixedly connected to the translation member, the other end of which passes through the U-shaped guide baffle and is slidably connected to the U-shaped guide baffle, and the other end of which is also connected to the sampling head.

[0013] As a further solution of the present invention: the sampling head is provided with a sample placement portion and a sampling tip portion, the sample placement portion is detachably connected to the U-shaped guide baffle, and a locking screw is also fixedly installed in the sampling head; An internal threaded hole is formed at one end of the telescopic tube, the locking screw is inserted into the internal threaded hole, and the internal threaded hole and the locking screw are threadedly connected.

[0014] As a further solution of the present invention: it also includes: a connecting hose, the number of the connecting hoses is multiple, one end of the multiple connecting hoses is respectively connected to the multiple telescopic tubes, and the other end of the multiple connecting hoses is connected to the airflow control cylinder; and air holes, wherein the number of the air holes is multiple, and the multiple air holes are respectively opened on the multiple telescopic tubes and located in the sample placement part.

[0015] Compared with the prior art, the present invention has the following beneficial effects: When sampling the soil at a designated location, first, the staff can move the entire sampling equipment to the ground at the designated location through the handle on the sampling mobile frame. At this time, under the support of the four L-shaped fixed legs (during the sampling process, the staff's feet can be stepped on the L-shaped fixed legs to prevent the entire equipment from shifting or tilting, thereby ensuring the stability of the sampling process), the sampling mobile frame can be in a horizontal state to ensure the accuracy of the sampling. Then, the rotary drive assembly is started to drive the separation control box, the lifting sleeve and the sampling control cylinder to rotate synchronously, and drive the drill bit to break the soil at the designated location to ensure that the lifting sleeve enters the soil smoothly. Among them, for rotating parts such as the rotating base and the separation control box, corresponding protective covers can be set to ensure safety performance during operation, which will not be elaborated here. As the drill bit continues to rotate, the sampling mobile frame can be pressed by manpower to make a part of the telescopic plug plate extend into the L-shaped fixed legs, thereby moving the sampling mobile frame and the entire equipment downward until the multiple sampling telescopic parts reach the designated depth. At this time The rotary drive component is stopped, and the separation control component is started. Under the pulling action of the separation control component, the lifting sleeve can be moved upward and slide on the sampling control cylinder (the sampling control cylinder remains stationary, and the position of the drill bit remains stationary). When the lifting sleeve moves upward, the distance between the bottom end of the lifting sleeve and the drill bit increases, and the size of the sampling telescopic part is expanded, so that the sampling device is exposed to the outside of the lifting sleeve and contacts the soil at a specified depth (wherein, in the process of the lifting sleeve extending into the soil, under the control of the separation control component, the size of the sampling telescopic part is smaller, and the sampling device does not contact the soil under the protective isolation effect of the lifting sleeve). At this time, the sampling device can be operated to collect multiple samples of the soil at the specified depth. The operation is simple, which can not only avoid multiple sampling devices from being damaged or deformed by collision, affecting subsequent sampling work, but also avoid soil from other positions from entering the sampling device through the reserved holes, causing the sampled soil to be mixed with soil from other positions, thereby affecting the accuracy of the detection results, providing convenience for the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the front side of the soil sampler for land management in an embodiment of the present invention.

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the soil sampler for land management in the embodiment of the present invention from the rear side.

[0018] Figure 3 It is a schematic diagram of the front cross-sectional structure of the separation control box in an embodiment of the present invention.

[0019] Figure 4 It is a schematic diagram of the three-dimensional structure of the distribution of connecting hoses in an embodiment of the present invention.

[0020] Figure 5 It is a schematic diagram of the three-dimensional structure of the sampling head distribution in an embodiment of the present invention.

[0021] Figure 6 It is a schematic diagram of the three-dimensional structure of the distribution of guide slots in an embodiment of the present invention.

[0022] Figure 7 Schematic diagram of the cross-sectional structure of the telescopic tube in an embodiment of the present invention.

[0023] Figure 8 Schematic diagram of the cross-sectional structure of the sampling head in an embodiment of the present invention.

[0024] In the figure: 1-sampling mobile frame, 2-rotating base, 3-separation control box, 4-telescopic cylinder, 5-telescopic plug plate, 6-L-shaped fixed support foot, 7-drill bit, 8-support plate, 9-sampling telescopic part, 10-lifting sleeve, 11-flushing joint, 12-driven gear, 13-driving motor, 14-limiting gear column, 15-transmission support rod, 16-slide groove, 17-sampling control cylinder, 18-support partition, 19-U-shaped guide baffle, 20-telescopic tube, 21-sampling head, 22-connecting hose, 23-air flow control cylinder, 24-telescopic rod, 25-guide piston rod, 26-guide slot, 27-translation part, 28-movable connecting rod, 29-air hole, 30-locking screw, 31-internal thread hole, 32-sample placement part, 33-sampling tip. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0027] See also Figure 1-Figure 8 A land management soil sampler provided by an embodiment of the present invention includes a sampling mobile frame 1 and further includes: A rotating base 2, wherein the rotating base 2 is rotatably mounted on the sampling mobile frame 1, and a separation control box 3 is also fixedly mounted on the rotating base 2; and a soil sampling mechanism, which is connected to the sampling mobile frame 1 and the separation control box 3 respectively, wherein the soil sampling mechanism includes a lifting sleeve 10, a sampling control cylinder 17, a separation control component and a rotation drive component; The separation control assembly is connected to the separation control box 3, and a lifting sleeve 10 and a sampling control cylinder 17 are installed on the separation control assembly. The sampling control cylinder 17 is sleeved in the lifting sleeve 10 and is slidably connected to the lifting sleeve 10, and a drill bit 7 is also fixedly installed at the bottom end of the sampling control cylinder 17; A plurality of sampling telescopic parts 9 are evenly arranged at the bottom of the lifting sleeve 10 , and a sampling device is arranged at each sampling telescopic part 9 . The rotary drive assembly is connected to the sampling mobile frame 1 and the lifting sleeve 10 , respectively.

[0028] See also Figure 1-Figure 8 , further comprising: a telescopic plugboard 5, the number of the telescopic plugboard 5 is four, and one end of the four telescopic plugboards 5 is fixedly connected to the sampling mobile rack 1; And an L-shaped fixed leg 6, wherein the L-shaped fixed leg 6 is slidably connected to the other end of the telescopic plug plate 5, wherein the telescopic plug plate 5 is inserted into the L-shaped fixed leg 6 and is slidably connected to the L-shaped fixed leg 6.

[0029] When sampling the soil at a designated location, first, the staff can move the entire sampling device to the ground at the designated location through the handle on the sampling mobile frame 1. At this time, under the support of the four L-shaped fixed legs 6 (during the sampling process, the staff's feet can step on the L-shaped fixed legs 6 to prevent the entire device from shifting or tilting, thereby ensuring the stability of the sampling process), the sampling mobile frame 1 can be in a horizontal state to ensure the accuracy of the sampling. Then, the rotation drive component is started to drive the separation control box 3, the lifting sleeve 10 and the sampling control cylinder 17 to rotate synchronously, and drive the drill bit 7 to break the soil at the designated location to ensure that the lifting sleeve 10 enters the soil smoothly. Among them, for the rotating parts such as the rotating base 2 and the separation control box 3, corresponding protective covers can be provided to ensure the safety performance during operation, which will not be described in detail here. As the drill bit 7 continues to rotate, the sampling mobile frame 1 is pressed by manpower, so that a part of the telescopic plug plate 5 can be extended into the L-shaped fixed legs 6, thereby moving the sampling mobile frame 1 and the entire device downward until the multiple sampling telescopic parts 9 reach the designated depth. At this time The rotary drive assembly is stopped, and the separation control assembly is started. Under the pulling action of the separation control assembly, the lifting sleeve 10 can be moved upward and slide on the sampling control cylinder 17 (the sampling control cylinder 17 remains stationary, and the position of the drill bit 7 remains stationary). When the lifting sleeve 10 moves upward, the distance between the bottom end of the lifting sleeve 10 and the drill bit 7 increases, and the size of the sampling telescopic part 9 is enlarged, so that the sampling device is exposed to the outside of the lifting sleeve 10 and contacts the soil at a specified depth (wherein, in the process of the lifting sleeve 10 extending into the soil, under the control of the separation control assembly, the size of the sampling telescopic part 9 is small, and the sampling device does not contact the soil under the protective isolation effect of the lifting sleeve 10). At this time, the sampling device can be operated to collect multiple samples of the soil at the specified depth. The operation is simple, which can not only avoid causing multiple sampling devices to be damaged or deformed by collision, affecting subsequent sampling work, but also avoid soil at other positions from entering the sampling device through the reserved holes, causing the sampled soil to be mixed with soil at other positions, thereby affecting the accuracy of the detection results, providing convenience for the staff.

[0030] In one embodiment of the present invention, see Figure 1-Figure 8 , the rotary drive assembly comprises: A support plate 8, one end of which is fixedly connected to the sampling mobile frame 1, wherein there are two support plates 8, which are respectively located on both sides of the lifting sleeve 10; A driving motor 13, wherein the driving motor 13 is fixedly connected to the other end of the supporting plate 8; And a limit transmission unit, which is connected to the sampling mobile frame 1, the support plate 8 and the lifting sleeve 10 respectively.

[0031] The limit transmission unit comprises: A limiting tooth column 14, the two ends of which are rotatably connected to the sampling mobile frame 1 and the support plate 8 respectively; and a driven gear 12 , wherein the driven gear 12 is fixedly mounted on the lifting sleeve 10 , wherein the driven gear 12 is meshingly connected with the position-limiting tooth column 14 , and the driven gear 12 is also slidably connected with the position-limiting tooth column 14 .

[0032] See also Figure 1-Figure 8 , the separation control component comprises: A telescopic cylinder 4, wherein the telescopic cylinder 4 is fixedly mounted on the separation control box 3, and an output end of the telescopic cylinder 4 is fixedly connected to the lifting sleeve 10; A chute opening 16, wherein the number of the chute openings 16 is multiple, and the multiple chute openings 16 are evenly opened on the lifting sleeve 10, and the multiple chute openings 16 are all located in the separation control box 3; And a transmission support rod 15, the number of the transmission support rods 15 is equal to the number of the slide slot openings 16, one end of each of the transmission support rods 15 is fixedly connected to the inner wall of the separation control box 3, and the other end of the transmission support rod 15 passes through the slide slot opening 16 and is fixedly connected to the sampling control cylinder 17.

[0033] In the process of the sampling device moving toward the inside of the soil, the driving motor 13 is started to drive the limit gear column 14 to rotate. The number of the driving motor 13 and the limit gear column 14 can be set to two groups to ensure that the lifting sleeve 10 is driven to rotate smoothly. Under the action of the meshing transmission between the limit gear column 14 and the driven gear 12, the lifting sleeve 10 can be driven to rotate. During the rotation of the lifting sleeve 10, the separation control box 3 and the rotating base 2 can be driven to rotate on the sampling mobile frame 1 through the card fit between the slide groove 16 and the transmission support rod 15, and the sampling control cylinder 17 can be driven to rotate synchronously, thereby driving the drill bit 7 to rotate. After the sampling device reaches the specified depth, the lifting sleeve 10 is driven to rotate. The driving motor 13 stops, at which time the limiting tooth column 14 is in a braking state, thereby limiting the driven gear 12, and then limiting the lifting sleeve 10 and the separation control box 3, to prevent the lifting sleeve 10 from rotating when the lifting sleeve 10 moves upward subsequently. After the driving motor 13 stops, the telescopic cylinder 4 is started to pull the lifting sleeve 10 upward, so that the transmission support rod 15 and the slide groove mouth 16 can directly move relative to each other (the sampling control cylinder 17 always ensures a stationary state). After the lifting sleeve 10 moves upward, the size of the sampling telescopic part 9 can be changed, so that the sampling device can be separated from the lifting sleeve 10 and contact with the soil at a specified depth.

[0034] In one embodiment of the present invention, see Figure 1-Figure 8The sampling device is located in the cavity opened on the sampling control cylinder 17, and is arranged opposite to the plurality of sampling telescopic parts 9, wherein the structure and size of the cavity are adapted according to the structure of the sampling device, preferably in the form of a circular chamber, which can be adjusted according to the needs of actual production personnel. The above are all prior arts and will not be described in detail here; Wherein, the sampling device includes a supporting partition 18, an extension drive assembly, a telescopic guide assembly and a sampling head 21; The supporting partition 18 is fixedly mounted in the cavity on the sampling control tube 17, the extending driving assembly is located in the cavity on the sampling control tube 17 and is fixedly connected to the supporting partition 18, the telescopic guide assembly is respectively connected to the supporting partition 18 and the extending driving assembly, and a sampling head 21 is detachably mounted on the telescopic guide assembly.

[0035] The extension drive assembly comprises: A telescopic rod 24, wherein the telescopic rod 24 is fixedly installed in the cavity, and an airflow control tube 23 is fixedly installed on the other end of the telescopic rod 24; A guide piston rod 25, one end of which is fixedly connected to the support baffle 18, and the other end of which is inserted into the airflow control cylinder 23 and slidably connected to the airflow control cylinder 23; And a movable connecting rod 28 , the number of the movable connecting rod 28 is multiple, and the multiple movable connecting rods 28 are evenly distributed on the airflow control tube 23 and are all rotatably connected to the airflow control tube 23 .

[0036] The telescopic guide assembly comprises: A guide slot 26, wherein the number of the guide slots 26 is multiple, and the multiple guide slots 26 are evenly arranged on the supporting partition 18; A translation member 27, wherein the number of the translation members 27 is equal to the number of the guide slots 26, and the plurality of translation members 27 are respectively slidably connected to the plurality of guide slots 26, and are respectively rotatably connected to the plurality of movable connecting rods 28; A U-shaped guide baffle 19, wherein the U-shaped guide baffle 19 is fixedly mounted on the supporting baffle 18; And a telescopic tube 20, one end of which is fixedly connected to the translation member 27, the other end of the telescopic tube 20 passes through the U-shaped guide baffle 19 and is slidably connected to the U-shaped guide baffle 19, and the other end of the telescopic tube 20 is also connected to the sampling head 21.

[0037] The sampling head 21 is provided with a sample placement portion 32 and a sampling tip portion 33, the sample placement portion 32 is detachably connected to the U-shaped guide baffle 19, and a locking screw 30 is also fixedly installed in the sampling head 21; An internal threaded hole 31 is formed at one end of the telescopic tube 20 . The locking screw 30 is inserted into the internal threaded hole 31 , and the internal threaded hole 31 and the locking screw 30 are threadedly connected.

[0038] It also includes: a connecting hose 22, wherein the number of the connecting hoses 22 is multiple, one end of each of the connecting hoses 22 is connected to each of the telescopic tubes 20, and the other end of each of the connecting hoses 22 is connected to the airflow control tube 23; and a plurality of air holes 29 , wherein the plurality of air holes 29 are respectively opened on the plurality of telescopic tubes 20 and located in the sample placement portion 32 .

[0039] After the lifting sleeve 10 moves upward, the telescopic rod 24 is started, wherein the telescopic rod 24 can also be in the form of a telescopic cylinder 4, which can push the airflow control tube 23 to move downward, wherein the airflow control tube 23 can move downward smoothly under the guidance of the guide piston rod 25, and during the downward movement of the airflow control tube 23, the translation member 27 can be pushed to move through the non-supporting plate 8, wherein the translation member 27 can be a plate-shaped structure, and a roller is arranged on the plate-shaped structure, when the translation member 27 is acted upon by a force in the lateral and downward direction, multiple translation members 27 will be synchronously moved toward the outer side of the supporting partition 18, and during the movement of the translation member 27, the telescopic tube 20 can be pushed to slide on the U-shaped guide baffle 19, and the sampling head 21 can be driven to move toward the outer side of the lifting sleeve 10, Among them, there are multiple sampling heads 21, and multiple samples can be collected at the same depth to ensure the accuracy of subsequent test results. In addition, a sampling tip 33 is provided at the outer end of the sampling head 21 to facilitate the sampling head 21 to extend into the soil. After the sampling head 21 extends into the soil for a certain distance, the telescopic rod 24 is started to pull the airflow control tube 23 upward, so that the extended sampling head 21 is retracted into the lifting sleeve 10 again. In the process of the translation member 27 pulling the telescopic tube 20 to move in the opposite direction, a part of the soil will be collected in the sample placement part 32 on the other end of the sampling head 21, thereby completing the collection of multiple groups of samples at different positions at the same depth. In addition, through the provided connecting hose 22, when the sampling head 21 extends outward into the soil, the guide piston rod 25 will move into the air flow control cylinder 23, thereby increasing the air pressure inside the air flow control cylinder 23, and the high-pressure gas will enter the telescopic tube 20 through the connecting hose 22, and flow into the sample placement part 32 through the air hole 29, so as to avoid the initial stage of the sampling head 21 extending into the soil (not extending to the specified depth, at this time the soil may be mixed with soil at other depths under the mixing action of the drill bit 7, which is easy to affect the results of subsequent tests and interfere with the test results), and avoid the soil from entering the sample placement part 32 under the action of air pressure. On the contrary, in the process of the sampling head 21 retracting back into the lifting sleeve 10, on the one hand, under the pulling action of the telescopic tube 20, the soil will automatically enter the sample placement part 32, and on the other hand, along with the guide piston The rod 25 moves toward the outside of the airflow control cylinder 23, and the airflow control cylinder 23 is in a negative pressure state (the airflow control cylinder 23 is provided with corresponding valves and pipes, so that the airflow control cylinder 23 is in a required position, and under the push and pull action of the guide piston rod 25, the interior of the airflow control cylinder 23 is in a high pressure or negative pressure state, which will not be elaborated here), so that the soil entering the sample placement part 32 can be adsorbed (at this time, the sample placement part 32 is also in a negative pressure state, because the underground soil is generally relatively moist, it will enter the sample placement part 32 in the form of blocks, which can have a certain adsorption effect on the block soil), and the soil entering the sample placement part 32 can be prevented from flowing out of the sample placement part 32 again, thereby further ensuring the accuracy of sampling.Thereby ensuring the accuracy of subsequent test results, and after the sampling is completed, the sampling head 21 retracts to its original position and is isolated and protected by the lifting sleeve 10 again, thereby preventing the sampled soil from being mixed with soil from other positions, causing sample contamination. After the sampling head 21 is moved to the ground, when the sampling head 21 is extended to the outside of the lifting sleeve 10 to take the sample, the soil in the sample placement part 32 can be loosened under the action of air pressure, which is convenient for subsequent material collection. In addition, through the provided locking screw 30 and the internal threaded hole 31, the staff can unscrew the sampling head 21 from the telescopic tube 20 to completely discharge the loose soil in the sample placement part 32 to the outside, thereby completing the sampling and collection of the soil, which will not be described in detail here.

[0040] It should be noted that in the present invention, unless otherwise clearly specified and limited, the terms "slide", "rotate", "fix", "have" and the like should be understood in a broad sense, for example, it can be a welding connection, a bolt connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A soil sampler for land management, comprising a mobile sampling frame, characterized in that: Also includes: A rotating base, the rotating base is rotatably mounted on the sampling mobile rack, and a separation control box is also fixedly mounted on the rotating base; and a soil sampling mechanism, which is respectively connected to the sampling mobile frame and the separation control box, wherein the soil sampling mechanism comprises a lifting sleeve, a sampling control cylinder, a separation control component and a rotation drive component; The separation control assembly is connected to the separation control box, and a lifting sleeve and a sampling control sleeve are installed on the separation control assembly. The sampling control sleeve is sleeved in the lifting sleeve and is slidably connected to the lifting sleeve, and a drill bit is fixedly installed at the bottom end of the sampling control sleeve; A plurality of sampling telescopic parts are evenly arranged at the bottom of the lifting sleeve, and a sampling device is arranged at each of the sampling telescopic parts. The rotating drive assembly is respectively connected to the sampling mobile frame and the lifting sleeve.

2. The land management soil sampler according to claim 1, characterized in that: Also includes: Telescopic plugboards, the number of which is four, and one end of each of the four telescopic plugboards is fixedly connected to the sampling mobile rack; And an L-shaped fixed leg, the L-shaped fixed leg is slidably connected to the other end of the telescopic plug plate, wherein the telescopic plug plate is inserted into the L-shaped fixed leg and is slidably connected to the L-shaped fixed leg.

3. The land management soil sampler according to claim 1 or 2, characterized in that: The rotary drive assembly comprises: A support plate, one end of which is fixedly connected to the sampling mobile frame, wherein there are two support plates, which are respectively located on both sides of the lifting sleeve; A driving motor, wherein the driving motor is fixedly connected to the other end of the supporting plate; And a limit transmission unit, wherein the limit transmission unit is respectively connected with the sampling mobile frame, the support plate and the lifting sleeve.

4. The land management soil sampler according to claim 3, characterized in that: The limit transmission unit comprises: A limiting tooth column, the two ends of which are rotatably connected to the sampling mobile frame and the support plate respectively; and a driven gear, wherein the driven gear is fixedly mounted on the lifting sleeve, wherein the driven gear is meshingly connected with the limiting tooth column, and the driven gear is also slidably connected with the limiting tooth column.

5. The land management soil sampler according to claim 1, characterized in that: The separation control assembly comprises: A telescopic cylinder, the telescopic cylinder is fixedly mounted on the separation control box, and an output end of the telescopic cylinder is fixedly connected to the lifting sleeve; A chute opening, wherein the number of the chute openings is multiple, the multiple chute openings are evenly opened on the lifting sleeve, and the multiple chute openings are all located in the separation control box; And a transmission support rod, the number of which is equal to the number of the slide slot openings, one end of each of the transmission support rods is fixedly connected to the inner wall of the separation control box, and the other end of the transmission support rod passes through the slide slot opening and is fixedly connected to the sampling control cylinder.

6. The land treatment soil sampler according to claim 5, characterized in that: The sampling device is located in the cavity opened on the sampling control cylinder and is arranged opposite to the plurality of sampling telescopic parts; Wherein, the sampling device comprises a supporting baffle, an extension drive assembly, a telescopic guide assembly and a sampling head; The supporting partition is fixedly mounted in a cavity on the sampling control tube, the extending driving assembly is located in the cavity on the sampling control tube and is fixedly connected to the supporting partition, the telescopic guiding assembly is respectively connected to the supporting partition and the extending driving assembly, and a sampling head is detachably mounted on the telescopic guiding assembly.

7. The land treatment soil sampler according to claim 6, characterized in that: The extension drive assembly comprises: A telescopic rod, the telescopic rod is fixedly installed in the cavity, and an airflow control cylinder is fixedly installed on the other end of the telescopic rod; A guide piston rod, one end of which is fixedly connected to the support baffle, and the other end of which is inserted into the airflow control cylinder and slidably connected to the airflow control cylinder; And a movable connecting rod, the number of the movable connecting rods is multiple, the multiple movable connecting rods are evenly distributed on the airflow control cylinder, and are all rotatably connected to the airflow control cylinder.

8. The land treatment soil sampler according to claim 7, characterized in that: The telescopic guide assembly comprises: A guide slot, wherein the number of the guide slots is multiple, and the multiple guide slots are evenly arranged on the supporting partition; A translation member, the number of the translation members is equal to the number of the guide slots, and the plurality of translation members are respectively slidably connected to the plurality of guide slots and are respectively rotatably connected to the plurality of movable connecting rods; A U-shaped guide baffle, the U-shaped guide baffle is fixedly mounted on the supporting baffle; And a telescopic tube, one end of which is fixedly connected to the translation member, the other end of which passes through the U-shaped guide baffle and is slidably connected to the U-shaped guide baffle, and the other end of which is also connected to the sampling head.

9. The land treatment soil sampler according to claim 8, characterized in that: The sampling head is provided with a sample placement portion and a sampling tip portion, the sample placement portion is detachably connected to the U-shaped guide baffle, and a locking screw is also fixedly installed in the sampling head; An internal threaded hole is formed at one end of the telescopic tube, the locking screw is inserted into the internal threaded hole, and the internal threaded hole and the locking screw are threadedly connected.

10. The land treatment soil sampler according to claim 9, characterized in that: Also includes: A connecting hose, wherein the number of the connecting hoses is multiple, one end of each of the connecting hoses is connected to each of the telescopic tubes, and the other end of each of the connecting hoses is connected to the airflow control tube; and air holes, wherein the number of the air holes is multiple, and the multiple air holes are respectively opened on the multiple telescopic tubes and located in the sample placement part.

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