Forestry monitoring soil sampling equipment

Abstract

The invention discloses forestry monitoring soil sampling equipment, and belongs to the technical field of soil sampling. Comprising two fastening semi-rings with one ends hinged to each other, connecting blocks fixed to the ends, away from each other, of the two fastening semi-rings correspondingly, and adjusting grooves formed in the outer side faces of the fastening semi-rings, the adjusting groove extends from the fastening semi-ring to the connecting block and penetrates through the end, away from the fastening semi-ring, of the connecting block, and the sampling structure is arranged on the adjusting groove and can slide on the adjusting groove so as to adjust the sampling position and sample soil. According to the invention, soil sampling can be carried out on any position of a fixed radius of a trunk by adjusting the positions of the sampling structures in real time, and sampling can be carried out on different positions of the trunk at the same time by using the multiple sampling structures, so that the sampling efficiency can be improved while the sampling position flexibility of the sampling equipment is improved.

Description

Technical Field

[0001] This invention relates to soil sampling equipment for forestry monitoring, and belongs to the field of soil sampling technology. Background Technology

[0002] Soil sampling refers to the methods of collecting soil samples, including sampling layout and sampling techniques. Soil samplers are required when conducting soil sampling. Commonly used soil samplers include soil drills, shovels, and spades.

[0003] In forestry monitoring, it is often necessary to sample the soil around tree trunks to determine if there are any abnormalities in the soil and moisture around the trees. However, relying solely on conventional soil samplers, only one location can be sampled at a time. After each sampling, the sample must be retained and discharged before reuse, resulting in low sampling efficiency and thus posing certain problems. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a soil sampling device for forestry monitoring. It solves the problem in the prior art that relying solely on conventional soil samplers, only one location can be sampled at a time, and after one sampling, the sample needs to be retained and discharged before it can be used again, resulting in low sampling efficiency.

[0005] The technical problem to be solved by this invention is achieved by the following technical solution: a forestry monitoring soil sampling device, comprising:

[0006] There are two fastening half-rings, one end of which is hinged to each other.

[0007] The connecting blocks are respectively fixed to the far ends of the two fastening semi-rings. The two connecting blocks abut against each other and are connected by bolt components.

[0008] An adjustment groove is formed on the outer surface of the fastening half-ring. The adjustment groove extends from the fastening half-ring towards the connecting block and passes through the end of the connecting block away from the fastening half-ring.

[0009] The sampling structure, mounted on an adjustment channel, can slide on the channel to adjust its sampling position, and then samples the soil.

[0010] A clamping structure is provided on opposite sides of the two fastening half-rings, and the clamping structure is used to fill the space on opposite sides of the two fastening half-rings.

[0011] By adopting the technical scheme, the two fastening half-rings are wrapped outside the tree trunk by turning the two fastening half-rings along the hinged end, and the two fastening half-rings are fixed through the bolt member, at this time, the position of the sampling structure can be adjusted in real time, the soil at any position of the fixed radius of the tree trunk can be sampled, the different positions of the tree trunk can be sampled at the same time by using multiple sampling structures, the flexibility of the sampling device for the sampling position is improved, and the sampling efficiency is also improved, meanwhile, the clamping structure is arranged between the fastening half-ring and the tree trunk, the fastening half-ring can be fixed in the vertical direction, at this time, the sampling structure can stably sample the soil layer at the same depth after adjustment, the uniformity of the sampling material is improved, and the accuracy of subsequent soil quality detection is improved.

[0012] The sampling structure comprises:

[0013] The adjusting rod extends into the adjusting groove at one end, and extends perpendicularly to the plane of the fastening half-ring at the other end, and the adjusting rod is in sliding connection with the adjusting groove,

[0014] The threaded sleeve rod is sleeved outside the adjusting rod and is in threaded connection with the adjusting rod,

[0015] The sampling cavity is arranged at the end of the threaded sleeve rod away from the adjusting rod, and the threaded sleeve rod is penetrated by the sampling cavity along the extension direction of the threaded sleeve rod away from the adjusting rod,

[0016] The plug is arranged at the opening of the sampling cavity through which the threaded sleeve rod is penetrated, and the plug is in threaded connection with the sampling cavity,

[0017] The sampling channel is arranged on the inner wall of the sampling cavity, and the sampling channel is in communication with the outside of the threaded sleeve rod, and the extension direction of the sampling channel and the radial direction of the threaded sleeve rod form an angle.

[0018] By adopting the technical scheme, the adjusting rod can slide in the adjusting groove to adjust the sampling position, and then the threaded sleeve rod is rotated to slide along the adjusting rod in the axial direction under the action of the threaded structure, so that the end of the threaded sleeve rod away from the adjusting rod can be inserted into the soil layer for sampling operation, since the soil layer exerts pressure on the end of the threaded sleeve rod, and the extension direction of the sampling channel and the radial direction of the threaded sleeve rod form an angle, therefore, during the rotation of the threaded sleeve rod, the soil gradually enters the sampling channel and then enters the sampling cavity for storage, the sampling purpose is achieved, and meanwhile, in the land with moist soil, since the soil has large viscosity and is not easy to enter the sampling cavity through the sampling channel, at this time, the plug is rotated out of the opening end of the sampling cavity, and as the threaded sleeve rod is inserted into the soil layer, the soil gradually enters the sampling cavity, and at this time, the soil is stored in the sampling cavity under the action of its own viscosity, the applicability of the sampling device in different soil layers is improved.

[0019] The clamping structure comprises:

[0020] The installation groove is arranged on the two fastening half-rings and penetrates the opposite sides of the two fastening half-rings to form an installation channel,

[0021] The filling plate is inserted into the installation groove at one end, and the other end of the filling plate extends between the two fastening half-rings,

[0022] The inflation cavity is arranged in the filling plate and penetrates the side of the filling plate facing the space between the two fastening half-rings, and the inflation cavity is filled with compressed gas,

[0023] The expansion layer is fixedly arranged on the side of the filling plate facing the space between the two fastening half-rings, and the expansion layer seals the penetration of the inflation cavity,

[0024] The preset hole is arranged on the outer side of the fastening half-ring and penetrates the fastening half-ring,

[0025] The fixing hole is arranged on the filling plate and can be aligned with the preset hole to form a matching hole,

[0026] The gas guide structure is arranged at the connection between the filling plate and the inner wall of the installation groove, and the gas guide structure is used to guide the gas in the inflation cavity out.

[0027] By adopting the above technical scheme, when the two fastening half-rings are turned along the hinge and are sleeved outside the tree trunk, the expansion layer expands towards the tree trunk under the action of the compressed gas in the inflation cavity and is pressed against the tree trunk, so that the fastening half-rings can be kept stable under the action of friction, thereby achieving the effect of fixing the position of the fastening half-rings.

[0028] The application further provides that the gas guide structure comprises:

[0029] The communication cavity is arranged in the inner wall of the installation groove,

[0030] The first sealing cavity is arranged on the side of the filling plate inside the installation groove, and the first sealing cavity can be aligned with the communication cavity for communication,

[0031] The intermediate channel is in communication with the inflation cavity at one end and is in communication with the first sealing cavity at the other end,

[0032] The top rod is fixed on the side of the installation groove where the communication cavity is arranged, and the end of the top rod can extend into the first sealing cavity, and the top rod is provided with an air inlet channel, one end of the air inlet channel can be in communication with the intermediate channel, and the other end of the air inlet channel can be in communication with the communication cavity;

[0033] The first sealing part is arranged in the first sealing cavity and is used to seal the communication between the intermediate channel and the first sealing cavity.

[0034] The application further provides that the first sealing part comprises:

[0035] The first sealing plate is slidably arranged in the first sealing cavity, and the first sealing plate can close the communication between the intermediate channel and the first sealing cavity,

[0036] The first sealing spring is arranged in the first sealing cavity, one end of the first sealing spring is fixed with the first sealing plate, and the other end of the first sealing spring is fixed with the end wall of the first sealing cavity away from the communication cavity.

[0037] The application is further provided that: the inner wall of the one end of the adjusting groove away from the connecting block is communicated with the second sealing cavity, the second sealing cavity and the communication cavity are communicated through the communication pipe, the air guide pipe is fixedly arranged in the inside of the threaded sleeve rod, the air guide pipe extends along the axial direction of the threaded sleeve rod and penetrates the adjusting rod, the inside of the air guide pipe is a hollow structure, and a plurality of air inlet holes are arranged in the one end of the air guide pipe away from the plugging head, the air inlet holes can be moved into the second sealing cavity and communicated with the second sealing cavity, the sampling cavity is provided with the expansion air bag on the side facing the adjusting rod, the inside of the expansion air bag is communicated with the inside of the air guide pipe, and the second sealing cavity is provided with the second sealing part for sealing and separating the second sealing cavity and the adjusting groove.

[0038] The application is further provided that: the second sealing part comprises:

[0039] The spring cavity is arranged in the side end wall of the second sealing cavity away from the adjusting groove,

[0040] The second sealing plate is slidably arranged in the spring cavity, one end of the second sealing plate extends into the second sealing cavity, and the end part of the second sealing plate can close the communication between the second sealing cavity and the connecting block,

[0041] The second sealing spring is arranged in the one end of the second sealing plate away from the second sealing cavity, and the second sealing spring is fixed with the second sealing plate and the inner wall of the spring cavity.

[0042] By adopting the above technical scheme, when the filling plate is inserted into the installation slot, the ejector rod is aligned with the opening of the first sealing cavity, and as the filling plate is completely inserted into the installation slot, the ejector rod presses the first sealing plate towards the direction of the first sealing spring, so that the first sealing spring is compressed and the intermediate channel is communicated with the air inlet channel; at this time, the compressed gas in the inflation cavity enters the communication cavity through the intermediate channel and the air inlet channel and is stored, and then is introduced into the second sealing cavity through the communication pipe; since the second sealing plate closes the communication between the second sealing cavity and the connecting block, the gas is stored in the second sealing cavity; when the single sampling structure is disassembled from the plugging head to make the soil directly enter the sampling cavity, or the threaded sleeve rod is rotated to make the soil enter the sampling cavity through the sample inlet channel, the sampling is completed; after the sampling is completed, the adjusting rod is pushed to slide in the adjusting groove, so that the adjusting rod moves to the communication between the second sealing cavity and the connecting block, so that the gas guide pipe is aligned with the communication between the second sealing cavity and the connecting block; then the threaded sleeve rod is reversely rotated to move the threaded sleeve rod towards the fastening half ring, so that the threaded sleeve rod drives the gas guide pipe to move into the second sealing cavity and press the second sealing plate towards the spring cavity, so that the second sealing spring is compressed; at this time, the air inlet hole is communicated with the second sealing cavity, the compressed gas in the second sealing cavity enters the inside of the gas guide pipe through the air inlet hole, and finally enters the inflation air bag, so that the inflation air bag is inflated; when the plugging head is disassembled, the soil directly enters the sampling cavity, after the inflation air bag is inflated, the soil in the sampling cavity can be directly pushed out, achieving the purpose of rapid unloading; when the plugging head is installed, the soil enters the sampling cavity through the sample inlet channel, first, the plugging head is disassembled and the soil is directly pushed out in the sampling cavity, then the plugging head is re-rotated into the sampling cavity, as the plugging head continues to rotate, the space in the sampling cavity gradually becomes smaller, and the plugging head gradually exerts pressure on the inflation air bag; at this time, part of the inflation air bag in the sampling cavity can be gradually pressed into the sample inlet channel; as the air pressure in the inflation air bag increases and the plugging head continues to press, the inflation air bag deforms and pushes the soil in the sample inlet channel out in the opposite direction, achieving the purpose of cleaning the sample inlet channel, so that the quality of the sample after multiple sampling is higher, ensuring the accuracy of the subsequent detection result.

[0043] The beneficial effects of the present application are: by turning over the two fastening half rings along the hinge end, the two fastening half rings are wrapped outside the tree trunk, and the two fastening half rings are fixed by the bolt member; at this time, the position of the sampling structure can be adjusted in real time, and the soil at any position of the fixed radius of the tree trunk can be sampled; by using multiple sampling structures, different positions of the tree trunk can be sampled at the same time, improving the flexibility of the sampling position of the sampling equipment and the sampling efficiency; at the same time, since the clamping structure is arranged between the fastening half ring and the tree trunk, the fastening half ring can be fixed in the vertical direction; at this time, after adjustment, the sampling structure can stably sample the soil layer at the same depth, improving the uniformity of the sampling material and being beneficial to improving the accuracy of the subsequent soil quality detection. BRIEF DESCRIPTION OF DRAWINGS

[0044] Figure 1 is a structural schematic diagram of the present application;

[0045] Figure 2 is a partial structural sectional view of the present application;

[0046] Figure 3 is Figure 2 is an enlarged view of the structure at A in the middle;

[0047] Figure 4 is a partial structural sectional view of the sampling structure in the present application;

[0048] Figure 5 is a partial structural sectional view of the present application when the air guide tube is inserted into the second sealing cavity;

[0049] Figure 6 is Figure 5 is an enlarged view of the structure at B in the middle;

[0050] Figure 7 is a structural schematic diagram of the present application when installed on a tree trunk in use;

[0051] Figure 8 is a structural schematic diagram of the present application when a slitting plate is used instead.

[0052] In the figure: 10, fastening half ring; 11, connecting block; 12, adjusting groove; 13, bolt member; 14, preset hole; 15, mounting groove; 20, adjusting rod; 21, threaded sleeve rod; 22, air guide tube; 23, sampling cavity; 24, sampling channel; 25, plugging head; 26, inflatable air bag; 27, air inlet hole; 30, filling plate; 31, inflation cavity; 32, expansion layer; 33, fixing hole; 34, intermediate channel; 35, first sealing cavity; 36, first sealing spring; 37, first sealing plate; 38, top rod; 39, air inlet channel; 40, communication cavity; 41, communication tube; 42, second sealing cavity; 43, spring cavity; 44, second sealing plate; 45, second sealing spring; 50, slitting plate. DETAILED DESCRIPTION

[0053] In order to make the technical means, creative features, purposes achieved and effects of the present application easy to understand, the present application will be further described below in combination with specific drawings.

[0054] As Figure 1 and Figure 7As shown, the forestry monitoring soil sampling device comprises fastening half-rings 10, connecting blocks 11 and adjusting grooves 12. The fastening half-rings 10 are provided in two, one end of each fastening half-ring 10 is hingedly connected to the other, and the other end is a movable end. The fastening half-rings 10 are curved towards the outside. When the movable ends of the two fastening half-rings 10 abut against each other, a complete ring structure is formed. The two fastening half-rings 10 can be mounted on the outside of a tree trunk. The connecting blocks 11 are fixed to the movable ends of the two fastening half-rings 10 and extend radially along the fastening half-rings 10. When the two connecting blocks 11 abut against each other, they can be detachably inserted into a bolt member 13. The bolt member 13 comprises a bolt and a nut. The bolt is inserted into the two connecting blocks 11, and then the nut is screwed into the two ends of the connecting block 11 to fix the two connecting blocks 11. The adjusting groove 12 is formed in the outer side of the side of the fastening half-ring 10 that faces the ground in the use state. The adjusting groove 12 extends from the fastening half-ring 10 to the connecting block 11 and penetrates one end of the connecting block 11 away from the fastening half-ring 10. The vertical section of the adjusting groove 12 is in T-shaped structure. Sampling structures are arranged on the adjusting groove 12. The sampling structures are provided in a plurality of numbers and are used for sampling soil. The sampling structures can slide on the adjusting groove 12 to adjust the sampling position. Clamping structures are arranged on the opposite sides of the two fastening half-rings 10. The clamping structures are used to fill the space on the opposite sides of the two fastening half-rings 10.

[0055] As shown, Figures 4-5 The sampling structure comprises an adjusting rod 20, a threaded sleeve rod 21, a sampling cavity 23, a sampling channel 24 and a plug 25. One end of the adjusting rod 20 extends into the adjusting groove 12 and fits with the inner wall structure of the adjusting groove 12. At the same time, the adjusting rod 20 abuts against the inner wall of the adjusting groove 12 in sliding mode. The other end of the adjusting rod 20 extends perpendicularly to the plane of the fastening half-ring 10 and faces the ground in the use state. The threaded sleeve rod 21 is sleeved outside one end of the adjusting rod 20 outside the adjusting groove 12, and is threadedly connected with the adjusting rod 20. The sampling cavity 23 is formed in the end face of the threaded sleeve rod 21 away from the adjusting rod 20. The sampling cavity 23 penetrates the threaded sleeve rod 21 in the extension direction of the threaded sleeve rod 21 away from the adjusting rod 20. The sampling cavity 23 is used for containing the sampled soil. The plug 25 is arranged at the opening of the sampling cavity 23 penetrated by the threaded sleeve rod 21. The plug 25 is threadedly connected with the sampling cavity 23. The sampling channel 24 is formed in the inner wall of the sampling cavity 23. The sampling channel 24 communicates the sampling cavity 23 with the outside of the threaded sleeve rod 21. The extension direction of the sampling channel 24 forms an angle with the radial direction of the threaded sleeve rod 21. The extension path of the sampling channel 24 can also be arranged in a curve. The convex end of the curve faces away from the threaded sleeve rod 21.

[0056] As shown, Figures 2-3As shown, the clamping structure comprises preset holes 14, mounting grooves 15, filling plates 30, inflation cavities 31, expansion layers 32, fixing holes 33 and air guide structures. The mounting grooves 15 are arranged on opposite sides of the two fastening half-rings 10, and the mounting grooves 15 form mounting channels by penetrating the opposite sides of the two fastening half-rings 10. One end of the filling plate 30 is inserted into the mounting groove 15 through the mounting channel, and the other end of the filling plate 30 extends between the two fastening half-rings 10. The inflation cavity 31 is arranged in the filling plate 30 and penetrates the side of the filling plate 30 facing between the two fastening half-rings 10. The expansion layer 32 is fixedly arranged on the side of the filling plate 30 facing between the two fastening half-rings 10, and the expansion layer 32 closes the penetration of the inflation cavity 31. The inflation cavity 31 is filled with compressed gas. The preset holes 14 are arranged on the outer side of the fastening half-ring 10 and penetrate the axial direction of the fastening half-ring 10, i.e., the vertical direction in the use state. The fixing holes 33 are arranged on the filling plate 30 and can be aligned with the preset holes 14 to form a matching hole. The air guide structure is arranged at the connection between the filling plate 30 and the inner wall of the mounting groove 15, and is used for guiding the gas in the inflation cavity 31 out. The filling plate 30 is also provided with a valve port in communication with the inflation cavity 31, and the valve port can fill or discharge gas into the inflation cavity 31.

[0057] As shown, Figure 3 The air guide structure comprises an intermediate channel 34, a first sealing cavity 35, a top rod 38 and a communication cavity 40. The communication cavity 40 is arranged in the inner wall of the mounting groove 15, the first sealing cavity 35 is arranged on the side of the filling plate 30 inside the mounting groove 15, and the first sealing cavity 35 can be aligned and communicated with the communication cavity 40. One end of the intermediate channel 34 communicates with the inflation cavity 31, and the other end of the intermediate channel 34 communicates with the first sealing cavity 35. The top rod 38 is fixed on the side of the mounting groove 15 where the communication cavity 40 is arranged, and the end of the top rod 38 can extend into the first sealing cavity 35. An air inlet channel 39 is arranged in the top rod 38, one end of the air inlet channel 39 can communicate with the intermediate channel 34, and the other end of the air inlet channel 39 communicates with the communication cavity 40. A first sealing part is arranged in the first sealing cavity 35, and the first sealing part is used to close the communication between the intermediate channel 34 and the first sealing cavity 35.

[0058] As shown, Figure 3As shown, the first sealing part includes a first sealing spring 36 and a first sealing plate 37, the first sealing plate 37 is slidingly arranged in the first sealing cavity 35, the end of the first sealing plate 37 can be moved to the communication position of the intermediate channel 34 and the first sealing cavity 35, and the first sealing plate 37 closes the communication position of the intermediate channel 34 and the first sealing cavity 35 by abutting and closing. The first sealing spring 36 is arranged in the first sealing cavity 35, one end of the first sealing spring 36 is fixed with the first sealing plate 37, and the other end of the first sealing spring 36 is fixed with the end wall of the first sealing cavity 35 away from the communication cavity 40. The elastic force direction of the first sealing spring 36 is the same as the sliding direction of the first sealing plate 37.

[0059] As shown in the drawings, Figures 5-6 As shown, the fastening half ring 10 further comprises an auxiliary structure, the auxiliary structure comprises a second sealing cavity 42 communicated and arranged in the inner wall of the adjusting groove 12 away from the connecting block 11, the second sealing cavity 42 is located on the side of the adjusting groove 12 away from the ground in the use state, the second sealing cavity 42 and the communication cavity 40 are communicated through the communication pipe 41, the air guide pipe 22 is fixedly arranged in the inside of the threaded sleeve rod 21, the air guide pipe 22 extends along the axial direction of the threaded sleeve rod 21 and penetrates the adjusting rod 20, the inside of the air guide pipe 22 is hollow structure and a plurality of air inlet holes 27 are arranged in the end of the air guide pipe 22 away from the plugging head 25 and extend along the radial direction of the air guide pipe 22, the air inlet holes 27 can move into the second sealing cavity 42 and communicate with the second sealing cavity 42, the side of the sampling cavity 23 facing the adjusting rod 20 is provided with the inflatable air bag 26, the inside of the inflatable air bag 26 is communicated with the inside of the air guide pipe 22, the inflatable air bag 26 can be made of rubber material with large elasticity, when the gas is introduced into the inflatable air bag 26 and the plugging head 25 is abutted and extruded, the inflatable air bag 26 can quickly deform in a large range to inflate into the sample inlet channel 24. The second sealing cavity 42 is provided with a second sealing part for sealing and separating the second sealing cavity 42 and the adjusting groove 12.

[0060] As shown in the drawings, Figure 6 As shown, the second sealing part includes a spring cavity 43, a second sealing plate 44 and a second sealing spring 45, the spring cavity 43 is arranged in the end wall of the second sealing cavity 42 away from the adjusting groove 12, the second sealing plate 44 is slidingly arranged in the spring cavity 43, one end of the second sealing plate 44 extends into the second sealing cavity 42, and the end of the second sealing plate 44 extending into the second sealing cavity 42 can close the communication position of the second sealing cavity 42 and the connecting block 11. The second sealing spring 45 is arranged in the end of the second sealing plate 44 away from the second sealing cavity 42, and the second sealing spring 45 is fixed with the second sealing plate 44 and the inner wall of the spring cavity 43 respectively, and the elastic force direction of the second sealing spring 45 is the same as the sliding direction of the second sealing plate 44.

[0061] As shown in the drawings, Figure 8As shown, the cutting plate 50 is alternatively arranged in the mounting groove 15, when the filling plate 30 is not mounted, the cutting plate 50 can be inserted into the mounting groove 15, the cutting plate 50 is also provided with the fixing hole 33 capable of communicating with the preset hole 14, the end of the cutting plate 50 towards the inner side of the fastening half ring 10 is provided with a sharp end, and at least one sharp end is arranged along the axial direction of the fastening half ring 10, if the bark of the tree trunk needs to be sampled, the two fastening half rings 10 are turned to each other and flipped, so that the sharp end of the cutting plate 50 gradually abuts against and pierces the bark of the tree trunk, when the two connecting blocks 11 are fixed by the bolt member 13, the fastening half ring 10 is rotated on the tree trunk by applying a tangential force along the fastening half ring 10 to the connecting block 11, at this time, the sharp end of the cutting plate 50 can cut the bark of the tree trunk, and the user can use a knife to shovel the cut bark to complete the bark sampling, thereby improving the use diversity of the sampling device.

[0062] In actual use, after the soil sampling at a site, the mud in the sampling structure is discharged through the auxiliary structure, then the adjusting rod 20 is moved along the adjusting groove 12 towards the connecting block 11, and finally the adjusting rod 20 is detached from the adjusting groove 12 to complete the disassembly, and then a new sampling structure is inserted into the adjusting groove 12 to continue the soil sampling at other sites. According to the actual working condition, the air guide structure and the auxiliary structure can be arranged in the same number as the sampling structure, and are arranged at equal intervals along the circumference of the fastening half ring 10, so as to meet the simultaneous discharge of mud in multiple sampling structures.

[0063] By turning the two fastening half rings 10 along the hinge end, the two fastening half rings 10 are wrapped outside the tree trunk, and the two fastening half rings 10 are fixed by the bolt member 13, at this time, the position of the sampling structure can be adjusted in real time to sample the soil at any position of the fixed radius of the tree trunk, thereby improving the flexibility of the sampling device for the sampling position, and since the clamping structure is arranged between the fastening half ring 10 and the tree trunk, the fastening half ring 10 can be fixed in the vertical direction, at this time, the sampling structure can stably sample the soil layer at the same depth after adjustment, thereby improving the uniformity of the sampling material and being beneficial to improving the accuracy of subsequent soil quality detection.

[0064] The adjusting rod 20 can slide in the adjusting groove 12 to adjust the sampling position, and then the threaded sleeve rod 21 is rotated to make the threaded sleeve rod 21 slide axially along the adjusting rod 20 under the action of the threaded structure, so that the end of the threaded sleeve rod 21 away from the adjusting rod 20 can be inserted into the soil layer for sampling operation. Since the soil layer gives pressure to the end of the threaded sleeve rod 21, and the extension direction of the sampling channel 24 has an angle with the radial direction of the threaded sleeve rod 21, during the rotation of the threaded sleeve rod 21, the soil gradually enters the sampling channel 24 and then enters the sampling cavity 23 through the sampling channel 24 to be stored, so that the sampling purpose is achieved. At the same time, in the land with moist soil, since the soil has large viscosity and is not easy to enter the sampling cavity 23 through the sampling channel 24, the plug 25 is rotated out of the opening end of the sampling cavity 23 at this time. As the threaded sleeve rod 21 is inserted into the soil layer, the soil gradually enters the sampling cavity 23, and at this time, the soil is stored in the sampling cavity 23 under the action of its own viscosity, so that the applicability of the sampling device in different soil layers is improved.

[0065] When the two fastening half-rings 10 are turned along the hinge and sleeved outside the tree trunk, the expansion layer 32 is expanded towards the tree trunk under the action of the compressed gas in the inflation cavity 31 and is pressed against the tree trunk, so that the fastening half-ring 10 can be kept stable under the action of friction, and the position of the fastening half-ring 10 is fixed.

[0066] When the filling plate 30 is inserted into the installation groove 15, the top rod 38 is aligned with the opening of the first sealing cavity 35, and as the filling plate 30 is completely inserted into the installation groove 15, the top rod 38 presses the first sealing plate 37 towards the direction of the first sealing spring 36, so that the first sealing spring 36 is compressed and the intermediate passage 34 is communicated with the air inlet passage 39. At this time, the compressed gas in the inflation cavity 31 is stored in the communication cavity 40 through the intermediate passage 34 and the air inlet passage 39, and then is introduced into the second sealing cavity 42 through the communication pipe 41. Since the second sealing plate 44 closes the communication between the second sealing cavity 42 and the connecting block 11, the gas is stored in the second sealing cavity 42. When the single sampling structure makes the soil directly enter the sampling cavity 23 by disassembling the plug 25 or enters the sampling cavity 23 through the sample inlet passage 24 by rotating the threaded sleeve rod 21, the sampling is completed. After the sampling is completed, the adjusting rod 20 is pushed to slide in the adjusting groove 12, so that the adjusting rod 20 moves to the communication between the second sealing cavity 42 and the connecting block 11, so that the air guide pipe 22 is aligned with the communication between the second sealing cavity 42 and the connecting block 11. Then, the threaded sleeve rod 21 is reversely rotated to move the threaded sleeve rod 21 towards the direction of the fastening half ring 10, so that the threaded sleeve rod 21 drives the air guide pipe 22 to move into the second sealing cavity 42 and press the second sealing plate 44 towards the direction of the spring cavity 43, so that the second sealing spring 45 is compressed. At this time, the air inlet hole 27 is communicated with the second sealing cavity 42, the compressed gas in the second sealing cavity 42 enters the air guide pipe 22 through the air inlet hole 27, and finally enters the inflation air bag 26, so that the inflation air bag 26 is inflated. When the plug 25 is selected to be disassembled, the soil directly enters the sampling cavity 23, and after the inflation air bag 26 is inflated, the soil in the sampling cavity 23 is directly pushed out, so that the purpose of rapid unloading is achieved. When the plug 25 is installed, the soil enters the sampling cavity 23 through the sample inlet passage 24, first, the plug 25 is disassembled and the soil is directly pushed out in the sampling cavity 23, then the plug 25 is re-rotated into the sampling cavity 23. As the plug 25 continues to rotate, the space in the sampling cavity 23 gradually decreases, and the plug 25 gradually presses the inflation air bag 26. At this time, part of the inflation air bag 26 in the sampling cavity 23 can be gradually pressed into the sample inlet passage 24. As the air pressure in the inflation air bag 26 increases and the plug 25 continues to press, the inflation air bag 26 deforms and pushes the soil in the sample inlet passage 24 outwards, so that the purpose of cleaning the sample inlet passage 24 is achieved, so that the quality of the sample after multiple sampling is higher, and the accuracy of the subsequent detection result is ensured.

[0067] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, and various changes and improvements can be made to the present application without departing from the spirit and scope of the present application, and such changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A forestry monitoring soil sampling device, characterized in that: include: Two fastening half-rings (10) are provided, and one end of the two fastening half-rings (10) is hinged to each other. Connecting blocks (11) are fixed to the opposite ends of two fastening half-rings (10), and the two connecting blocks (11) abut against each other and are connected by bolt components (13). An adjusting groove (12) is formed on the outer side of the fastening half-ring (10). The adjusting groove (12) extends from the fastening half-ring (10) toward the connecting block (11) and passes through the end of the connecting block (11) away from the fastening half-ring (10). The sampling structure is set on the adjustment groove (12). The sampling structure can slide on the adjustment groove (12) to adjust the sampling position. The sampling structure samples the soil. A clamping structure is provided on the opposite sides of the two fastening half-rings (10), and the clamping structure is used to fill the space on the opposite sides of the two fastening half-rings (10).

2. The forestry monitoring soil sampling equipment according to claim 1, characterized in that: The sampling structure includes: The adjusting rod (20) extends into the adjusting groove (12) at one end and extends perpendicularly to the plane of the fastening half ring (10) at the other end. The adjusting rod (20) is slidably connected to the adjusting groove (12). A threaded sleeve (21) is fitted onto the outside of the adjusting rod (20) and is threadedly connected to the adjusting rod (20). The sampling cavity (23) is located at the end of the threaded sleeve (21) away from the adjusting rod (20). The sampling cavity (23) extends through the threaded sleeve (21) along the direction away from the adjusting rod (20). A plug (25) is installed at the opening in the sampling chamber (23) through which the threaded sleeve (21) passes. The plug (25) is threadedly connected to the sampling chamber (23). The sample inlet channel (24) is located on the inner wall of the sampling chamber (23). The sample inlet channel (24) connects the sampling chamber (23) to the outside of the threaded sleeve (21). The extension direction of the sample inlet channel (24) is at an angle to the radial direction of the threaded sleeve (21).

3. The forestry monitoring soil sampling equipment according to claim 2, characterized in that: The clamping structure includes: Mounting grooves (15) are formed on the two fastening half-rings (10) and extend through the opposite sides of the two fastening half-rings (10) to form a mounting channel. The filler plate (30) is inserted into the mounting groove (15) at one end, and the other end of the filler plate (30) extends between the two fastening half rings (10). An inflation chamber (31) is formed inside the filling plate (30). The inflation chamber (31) extends through the filling plate (30) to the side between the two fastening half-rings (10). The inflation chamber (31) is filled with compressed gas. An expansion layer (32) is fixedly installed on the side of the filling plate (30) facing between the two fastening half-rings (10). The expansion layer (32) seals the through-hole of the inflation cavity (31). A pre-drilled hole (14) is provided on the outer side of the fastening half-ring (10), and the pre-drilled hole (14) passes through the fastening half-ring (10). A fixing hole (33) is formed on the filler plate (30). The fixing hole (33) can be aligned with the preset hole (14) to form a mating hole. The gas guiding structure is located at the connection between the filling plate (30) and the inner wall of the mounting groove (15). The gas guiding structure is used to exhaust the gas present in the inflation chamber (31).

4. The forestry monitoring soil sampling equipment according to claim 3, characterized in that: The gas guiding structure includes: The connecting cavity (40) is formed on the inner wall of the mounting groove (15). The first sealing cavity (35) is formed on one side of the filling plate (30) located inside the mounting groove (15), and the first sealing cavity (35) can be aligned and communicated with the communicating cavity (40). The intermediate channel (34) is connected at one end to the inflation chamber (31) and at the other end to the first sealing chamber (35). The push rod (38) is fixed on the side of the connecting cavity (40) in the mounting groove (15). The end of the push rod (38) can extend into the first sealing cavity (35). An air intake channel (39) is provided in the push rod (38). One end of the air intake channel (39) can communicate with the middle channel (34), and the other end of the air intake channel (39) can communicate with the connecting cavity (40). The first sealing part is disposed in the first sealing cavity (35) and is used to seal the connection between the intermediate channel (34) and the first sealing cavity (35).

5. The forestry monitoring soil sampling equipment according to claim 4, characterized in that: The first sealing part includes: The first sealing plate (37) is slidably disposed within the first sealing cavity (35), and the first sealing plate (37) is capable of sealing the connection between the intermediate channel (34) and the first sealing cavity (35). A first sealing spring (36) is disposed in the first sealing cavity (35). One end of the first sealing spring (36) is fixed to the first sealing plate (37), and the other end of the first sealing spring (36) is fixed to the end wall of the first sealing cavity (35) away from the communicating cavity (40).

6. The forestry monitoring soil sampling equipment according to claim 4, characterized in that: The inner wall of the adjusting groove (12) away from the connecting block (11) is connected to a second sealing cavity (42). The second sealing cavity (42) is connected to the connecting cavity (40) through a connecting pipe (41). A gas guide pipe (22) is fixedly installed inside the threaded sleeve (21). The gas guide pipe (22) extends along the axial direction of the threaded sleeve (21) and passes through the adjusting rod (20). The gas guide pipe (22) has a hollow structure inside and several air inlets (27) are opened at the end of the gas guide pipe (22) away from the sealing head (25). The air inlets (27) can move into the second sealing cavity (42) and communicate with the second sealing cavity (42). An expansion air bladder (26) is provided on the side of the sampling cavity (23) facing the adjusting rod (20). The interior of the expansion air bladder (26) is connected to the interior of the gas guide pipe (22). A second sealing part is provided inside the second sealing cavity (42) to seal and separate the second sealing cavity (42) and the adjusting groove (12).

7. The forestry monitoring soil sampling equipment according to claim 6, characterized in that: The second sealing part includes: The spring cavity (43) is located on the end wall of the second sealing cavity (42) away from the adjusting groove (12). The second sealing plate (44) is slidably disposed in the spring cavity (43). One end of the second sealing plate (44) extends into the second sealing cavity (42), and the end of the second sealing plate (44) can close the communication between the second sealing cavity (42) and the connecting block (11). The second sealing spring (45) is disposed at one end of the second sealing plate (44) away from the second sealing cavity (42) and the second sealing spring (45) is fixed to the inner wall of the second sealing plate (44) and the spring cavity (43) respectively.

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