Soil sampling instrument for ecological management of natural grassland

Abstract

The invention relates to the technical field of soil sampling, and discloses a soil sampling instrument for ecological management of natural grassland, which comprises a vehicle body, a vertical guide frame, a lifting sliding plate, a control motor, a connecting rod, a transmission shaft, a transmission gear, a top plate, an inner lining plate, an inner guide plate, a bottom plate, a placing frame and the like, two vertical guide frames are fixedly connected to the trolley body, guide grooves are formed in the inner side faces of the vertical guide frames, lifting sliding plates are slidably connected into the vertical guide frames, through holes capable of containing the clamping rods are formed in the outer sides of the vertical guide frames, and depth marks are carved at the positions of the through holes outside the vertical guide frames. According to the device, pit digging and sampling are integrated, during pit digging, soil dug out by the spiral drill rod is conveyed upwards through the soil discharging spiral blade, so that a large sampling frame composed of the top plate, the inner lining plate, the placing frame, the inner guide plate and the bottom plate enters a pit dug out by the spiral drill rod, and then continuous sampling is conducted on the pit wall through the sampling mechanism; the function of integrating pit digging and sampling is realized.

Description

Technical Field

[0001] The invention relates to the technical field of soil sampling, in particular to a soil sampling instrument for natural grassland ecological management. Background Art

[0002] As people gradually pay more attention to soil conditions, soil improvement is of utmost importance for poor soil conditions. It mainly uses certain theoretical knowledge and scientific and technological means to eliminate or prevent adverse factors that affect crop growth and cause soil degradation, improve soil properties, and increase soil fertility. During the soil improvement process, it is necessary to sample the target soil through a sampling device.

[0003] Patent CN217819457U discloses a soil sampling device, including a movable bracket, a threaded sleeve fixedly connected to the movable bracket, a screw rod matched with the inner thread of the threaded sleeve, a rotating drum rotatably connected to the threaded sleeve, the rotating drum and the screw rod are slidably connected, a cover plate fixedly connected to the lower end of the screw rod, a sampling drill barrel is clamped on the outer side of the cover plate, a connecting ring is arranged inside the sampling drill barrel, the connecting ring is connected to the cover plate through a plurality of connecting plates, and a plurality of baffles are rotatably connected to the connecting ring. The technical solution of this application drives the rotating drum to rotate through a motor, the slider and the slide groove cooperate to drive the screw to rotate, and the screw and the threaded sleeve cooperate to drive the sampling drill tube to rotate to perform soil sampling. The drilled soil can be stably placed in the sampling drill tube through the cooperation of the baffle and the connecting ring to prevent it from falling. The structure is compact and easy to promote and use. Although the above device can quickly perform soil sampling and can completely remove the soil after sampling, the test results of samples at different depths are different. The above device cannot distinguish the samples in detail according to the sampling depth, and the test results are not accurate enough. In addition, during the sampling process of the above device, the equipment needs to be pulled out of the soil after each sampling, and then the sample needs to be taken out before subsequent sampling can be performed, and the sampling efficiency is low. Summary of the invention

[0004] The invention provides a soil sampling instrument for natural grassland ecological management, so as to solve the technical problems that the existing equipment is difficult to distinguish samples according to depth and cannot perform continuous and rapid sampling.

[0005] The technical scheme of the present invention is: a soil sampling instrument for natural grassland ecological management, comprising a vehicle body, a vertical guide frame, a lifting slide, a control motor, a connecting rod, a transmission shaft, a transmission gear, a top plate, an inner lining plate, an inner guide plate, a bottom plate, a placement frame, a digging mechanism and a sampling mechanism. The vehicle body is fixedly connected with a vertical guide frame, and a lifting slide plate is slidably connected in the vertical guide frame. A through hole for placing a clamping rod is opened on the outer side of the vertical guide frame. The lifting slide plate can be supported by inserting the clamping rod into the through hole in the vertical guide frame. The lifting slide plate is installed with a control motor, a connecting rod is fixedly connected in the lifting slide plate, and a transmission shaft is rotatably connected in the connecting rod. The output shaft of the control motor is connected to the transmission shaft, and the transmission shaft is rotatably connected to the top plate. The top plate, the placement frame, the inner lining plate, the inner guide plate and the bottom plate together form a large sampling frame, the bottom of the top plate is fixedly connected with a placement frame, the bottom of the placement frame is fixedly connected to the inner lining plate, and the inner lining plate, the inner guide plate and the bottom plate are fixedly connected by an arc-shaped outer plate. The digging mechanism is used for digging soil downward along the ground, and the sampling mechanism is used for collecting test samples from the excavated pit wall.

[0006] Preferably, the digging mechanism includes a digging gear, an auger rod and a soil discharge assembly. The bottom of the inner guide plate is rotatably connected to the auger rod, the top of the auger rod is fixedly connected to the digging gear, and the soil discharge assembly is installed in the large sampling frame. The soil discharge assembly is used to transport the soil loosened by the auger rod upward.

[0007] Preferably, the soil discharge assembly includes a soil discharge gear, a soil discharge spiral blade, a soil discharge barrel and a rotating gear. The inner guide plate and the bottom plate are fixedly connected to the soil discharge barrel. The soil discharge spiral blade is rotatably connected inside the soil discharge barrel. The top of the soil discharge spiral blade is rotatably connected to the soil discharge gear, and the soil discharge gear is meshed with the transmission gear. The top of the soil discharge barrel on the bottom plate is rotatably connected to the rotating gear, the soil discharge spiral blade is fixedly connected to the rotating gear, and the rotating gear is meshed with the digging gear.

[0008] Preferably, the sampling mechanism includes a guide plate, a soil sampling frame, a connecting shaft, a transmission cam group, a rotating connecting rod, a sliding block and a transmission connection assembly. The guide plate is fixedly connected to the top of the inner guide plate, and the sliding block is slidably connected in the guide plate. The soil sampling frame is stored in the placement frame, and the rear side of the soil sampling frame cooperates with the sliding block. The top of the inner lining plate is rotatably connected to the connecting shaft, and the inner guide plate is rotatably connected to the transmission cam group. The eccentric position in the transmission cam group is rotatably connected to a rotating connecting rod, and the other end of the rotating connecting rod is rotatably connected to the sliding block. The transmission connection assembly is installed in the top plate and the inner lining plate, and the transmission connection assembly is used to connect the transmission shaft and the connecting shaft together.

[0009] Preferably, the transmission connection assembly includes a spline shaft, a lifting frame, a connecting sleeve, a guide cylinder, a guide rod, a support spring and a limit assembly. The spline shaft is fixedly connected to the bottom of the transmission gear, the lifting frame is slidably connected inside the top plate, the bottom of the lifting frame is rotatably connected to the connecting sleeve, the connecting sleeve is slidably connected to the outside of the spline shaft, a guide cylinder is installed on the top of the top plate, the sliding rod in the guide cylinder is connected to the lifting frame, a guide rod is installed on the top of the inner lining plate, the lifting frame is slidably connected to the guide rod, a support spring is provided between the lifting frame and the inner lining plate, the limit assembly is installed in the guide rod, and the limit assembly is used to limit the position of the lifting frame.

[0010] Preferably, the limiting assembly includes a rotating shaft, a rotating torsion spring, a wedge block, a connecting spring, a movable pull block, a connecting pull rod and an unlocking assembly, the rotating shaft is rotatably connected in the guide rod, the bottom of the rotating shaft passes through the guide rod, the rotating shaft and the guide rod are connected through a rotating torsion spring, the guide rod is slidably connected with a wedge block, the wedge block is slidably connected with a movable pull block, the top of the movable pull block is rotatably connected with a connecting pull rod, the other end of the connecting pull rod is rotatably connected to the rotating shaft, and a connecting spring is provided between the wedge block and the movable pull block.

[0011] Preferably, the unlocking assembly includes an L-shaped rod, a rotating push rod and a pushing torsion spring. The sliding block is fixedly connected to the L-shaped rod, the rotating push rod is rotatably connected to the L-shaped rod, and a pushing torsion spring is provided between the rotating push rod and the L-shaped rod.

[0012] Preferably, it also includes a soil storage frame, a sliding support plate, a reset spring, a fixed wedge block, a fixed concave frame, a wedge-shaped lifting block, a cylindrical rod and a supporting spring. The soil storage frame is fixedly connected to the bottom plate, the top of the soil storage frame is fixedly connected to the inner guide plate, the sliding support plate is slidably connected in the inner guide plate, a reset spring is provided between the sliding support plate and the inner guide plate, a fixed wedge block is fixed in the inner guide plate, a fixed concave frame is installed in the sliding support plate, a wedge-shaped lifting block is slidably connected in the fixed concave frame, a supporting spring is provided between the wedge-shaped lifting block and the fixed concave frame, and cylindrical rods are fixedly connected at both ends of the wedge-shaped lifting block.

[0013] Preferably, it further comprises a top support rod, and the sliding block is fixedly connected with the top support rod.

[0014] Preferably, it also includes a sliding baffle and a material-blocking spring. The bottom of the base plate is slidably connected with the sliding baffle, and the sliding baffle and the base plate are connected via the material-blocking spring.

[0015] The beneficial effects of the present invention are: 1. The device integrates pit digging and sampling. When digging a pit, the soil dug out by the spiral drill rod is transported upward through the soil discharge spiral blade, so that the large sampling frame composed of the top plate, inner lining plate, placement frame, inner guide plate and bottom plate enters the pit dug by the spiral drill rod, and then samples are taken on the pit wall through the sampling mechanism, thereby realizing the integrated function of pit digging and sampling.

[0016] 2. During the sampling process, the three soil sampling frames on the same layer collect the soil samples to be tested at the same height at the same time, and the height of the lifting frame is limited by the limit assembly during the sampling process. After the sampling is completed, the limit on the lifting frame is automatically released by the unlocking assembly, and after the sampling is completed, the connecting sleeve rises and resets to automatically release the connection between the connecting shaft and the spline shaft. After each sampling is completed, sampling can continue to be carried out at a deeper depth to ensure sampling efficiency.

[0017] 3. During the sampling process, the sliding support plate provides support for the soil sampling frame. After the sampling is completed, the sliding support plate slides toward the inside of the inner guide plate. At this time, the sliding support plate no longer provides support for the soil sampling frame, and the soil sampling frame can fall down into the soil storage frame. After the sampling is completed, the sliding baffle at the bottom of the soil storage frame is pulled open, and the sampling depth of the soil sampling frame in the soil storage frame decreases from top to bottom.

[0018] 4. During the sampling process, the lifting slide is blocked by the clamping rod, and the clamping rods outside the vertical guide frame are evenly spaced during the sampling process. The clamping rods are used to limit the lifting slide each time sampling is performed to prevent the auger rod from contacting the soil and continuing to dig downwards, so as to prevent the height of the soil frame from changing during the sampling process and affecting the sampling results. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 It is a schematic diagram of the structure of the top plate, inner lining plate, inner guide plate and bottom plate of the present invention.

[0021] Figure 3 It is a structural schematic diagram of the spiral drill rod of the present invention.

[0022] Figure 4 It is a schematic diagram of the cross-sectional structure of the soil discharge barrel of the present invention.

[0023] Figure 5 It is a schematic diagram of the cross-sectional structure of the connecting rod of the present invention.

[0024] Figure 6 It is a schematic diagram of the structure of the components between the top plate, the inner lining plate, the inner guide plate and the bottom plate of the present invention.

[0025] Figure 7 It is a structural schematic diagram of the top of the inner guide plate of the present invention.

[0026] Figure 8 It is a structural schematic diagram of the sliding block of the present invention.

[0027] Fig. 9 It is a schematic diagram of the cross-sectional structure of the guide rod of the present invention.

[0028] Fig.10 It is a structural explosion diagram of the wedge block of the present invention.

[0029] Fig.11 It is a schematic structural diagram of the L-shaped rod of the present invention.

[0030] Fig.12 It is a structural schematic diagram of the sliding support plate of the present invention.

[0031] Fig.13 It is a schematic structural diagram of the fixing concave frame of the present invention.

[0032] Fig.14 It is a schematic diagram of the structure below the bottom plate of the present invention.

[0033] Markings in the accompanying drawings: 1, vehicle body, 101, vertical guide frame, 102, lifting slide plate, 103, control motor, 104, connecting rod, 1041, transmission shaft, 105, transmission gear, 1051, spline shaft, 106, soil discharge gear, 107, soil discharge spiral blade, 1071, soil discharge cylinder, 108, rotating gear, 109, digging gear, 110, auger rod, 2, top plate, 201, inner lining plate, 202, inner guide plate, 203, bottom plate, 204, placement frame, 205, soil storage frame, 3, guide plate, 301, soil taking frame, 302, connecting shaft, 303, transmission cam group, 304, rotating connecting rod, 30 5. Sliding block, 3051. Top support rod, 3052. L-shaped rod, 3053. Rotating push rod, 3054. Pushing torsion spring, 4. Lifting frame, 4001. Connecting sleeve, 401. Guide cylinder, 402. Guide rod, 403. Support spring, 404. Rotating shaft, 405. Rotating torsion spring, 406. Wedge block, 4061. Connecting spring, 407. Moving pull block, 408. Connecting pull rod, 5. Sliding support plate, 501. Reset spring, 502. Fixed wedge block, 503. Fixed concave frame, 504. Wedge-shaped lifting block, 5041. Cylindrical rod, 505. Supporting spring, 6. Sliding baffle, 601. Material blocking spring. DETAILED DESCRIPTION

[0034] The following descriptions are merely preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention.

[0035] Embodiment 1: A soil sampling instrument for natural grassland ecological management, such as Figure 1-Figure 14As shown, it includes a vehicle body 1, a vertical guide frame 101, a lifting slide 102, a control motor 103, a connecting rod 104, a transmission shaft 1041, a transmission gear 105, a top plate 2, an inner lining plate 201, an inner guide plate 202, a bottom plate 203, a placement frame 204, a digging mechanism and a sampling mechanism. The vehicle body 1 is fixedly connected with a vertical guide frame 101, and two vertical guide frames 101 are provided. A guide groove is provided on the inner side of the vertical guide frame 101, and the lifting slide 102 is slidably connected in the vertical guide frame 101. A through hole for placing a clamping rod is provided on the outer side of the vertical guide frame 101, and each through hole outside the vertical guide frame 101 is engraved with a depth mark to extract soil samples at different depths. Inserting the clamping rod into the through hole in the vertical guide frame 101 can support the lifting slide 102 to limit the height of the lifting slide 102 A control motor 103 is installed on the lifting slide 102, and a connecting rod 104 is fixedly connected inside the lifting slide 102. A transmission shaft 1041 is rotatably connected inside the connecting rod 104. The output shaft of the control motor 103 is connected to the transmission shaft 1041. The control motor 103 can drive the transmission shaft 1041 to rotate. The transmission shaft 1041 is rotatably connected to the top plate 2. The top plate 2, the placement frame 204, the inner lining plate 201, the inner guide plate 202 and the bottom plate 203 together form a large sampling frame. A placement frame 204 is fixedly connected to the bottom of the top plate 2, and the bottom of the placement frame 204 is fixedly connected to the inner lining plate 201. The inner lining plate 201, the inner guide plate 202 and the bottom plate 203 are fixedly connected by an arc-shaped outer plate. The digging mechanism is used to dig soil downward along the ground, and the sampling mechanism is used to collect detection samples from the excavated pit wall.

[0036] like Figure 2 and Figure 3 As shown, the digging mechanism includes a digging gear 109, an auger rod 110 and a soil discharge assembly. The bottom of the inner guide plate 202 is rotatably connected to the auger rod 110. The auger rod 110 rotates and digs a hole downward along the ground. The top of the auger rod 110 is fixedly connected to the digging gear 109. The soil discharge assembly is installed in a large sampling frame. The soil discharge assembly is used to transport the soil loosened by the auger rod 110 upward.

[0037] like Figure 2 and Figure 4As shown, the soil discharge assembly includes a soil discharge gear 106, a soil discharge spiral blade 107, a soil discharge barrel 1071 and a rotating gear 108. The inner guide plate 202 and the bottom plate 203 are both fixedly connected with the soil discharge barrel 1071. The soil discharge spiral blade 107 is rotatably connected inside the soil discharge barrel 1071. The top of the soil discharge spiral blade 107 is rotatably connected with the soil discharge gear 106. The soil discharge gear 106 is meshed with the transmission gear 105. When the control motor 103 rotates forward, the soil discharge gear 106 and the soil discharge spiral blade 107 are driven to rotate through the transmission shaft 1041 and the transmission gear 105. The top of the soil discharge barrel 1071 on the bottom plate 203 is rotatably connected with the rotating gear 108. The soil discharge spiral blade 107 is fixedly connected to the rotating gear 108. The rotating gear 108 is meshed with the digging gear 109. The soil discharge spiral blade 107 drives the digging gear 109 and the spiral drill rod 110 to rotate through the rotating gear 108.

[0038] When sampling, the sampling personnel push the vehicle body 1 to the sampling location, then pull out the clamping rod supporting the lifting slide 102 and start the control motor 103, so that the control motor 103 rotates forward, and the control motor 103 drives the transmission shaft 1041 and the transmission gear 105 to rotate. When the transmission gear 105 rotates, it can drive the soil discharge spiral blade 107 to rotate through the soil discharge gear 106, and the rotating gear 108 rotates accordingly. When the rotating gear 108 rotates, it drives the auger rod 110 to rotate through the digging gear 109. During the rotation of the auger rod 110, it will gradually move along the ground. The auger rod 110 is excavated downward, and during the excavation process, the blades outside the auger rod 110 can send the excavated soil outward. When the bottom plate 203 drops to a height flush with the ground, as the auger rod 110 continues to rotate and excavate downward, the lifting slide 102 can continue to slide downward along the vertical guide frame 101. When the bottom plate 203 drops below the ground, the soil on the auger rod 110 will contact the soil discharge spiral blade 107, and as the soil discharge spiral blade 107 continues to rotate, the soil discharge spiral blade 107 will transport the soil on the auger rod 110 upward, and the soil discharge spiral blade 107 will be discharged. The soil on the blade 107 will be discharged upward along the soil discharge barrel 1071 to the top of the top plate 2, so that the large sampling frame composed of the top plate 2, the inner lining plate 201, the inner guide plate 202, the bottom plate 203, etc. can enter the pit dug by the spiral drill rod 110. When the lifting slide 102 descends to the sampling depth, the clamping rod at the corresponding height can limit the lifting slide 102 to prevent the lifting slide 102 from continuing to descend. At this time, the spiral drill rod 110 is also restricted and cannot descend. At this time, the soil sample is extracted from the inner wall of the soil pit through the sampling mechanism. After the sampling is completed, the clamping rod at the corresponding height is pulled out. At the same time, the sampling mechanism can continue to descend under the action of the spiral drill rod 110. When it reaches the next sampling depth, the corresponding height of the card rod still limits the height of the large sampling frame through the lifting slide 102, and then samples are continuously taken at the corresponding sampling depths in turn. When enough samples are taken, the control motor 103 rotates in the opposite direction, and the sampling personnel manually push the lifting slide 102 to rise and reset along the vertical guide frame 101. During the rising process, the soil discharge spiral blade 107 continuously sends the soil on the top plate 2 back into the pit. The equipment is completely taken out of the pit and the sampling is completed.

[0039] Embodiment 2: Based on embodiment 1, Figure 5-Figure 11As shown, the sampling mechanism includes a guide plate 3, a soil sampling frame 301, a connecting shaft 302, a transmission cam group 303, a rotating connecting rod 304, a sliding block 305 and a transmission connection assembly. The guide plate 3 is fixedly connected to the top of the inner guide plate 202, and the sliding block 305 is slidably connected in the guide plate 3. The soil sampling frame 301 is stored in the placement frame 204, and the rear side of the soil sampling frame 301 cooperates with the sliding block 305. The top of the inner lining plate 201 is rotatably connected to the connecting shaft 302, the inner guide plate 202 is rotatably connected to the transmission cam group 303, and the eccentric position of the transmission cam group 303 is rotatably connected to the rotating connecting rod 304, and the other end of the rotating connecting rod 304 is rotatably connected to the sliding block 305. The transmission connection assembly is installed in the top plate 2 and the inner lining plate 201, and the transmission connection assembly is used to connect the transmission shaft 1041 and the connecting shaft 302 together.

[0040] When the lifting slide 102 descends to the sampling depth, the connecting shaft 302 is connected to the transmission gear 105 through the transmission connection assembly, and the transmission gear 105 can drive the transmission cam group 303 to rotate through the connecting shaft 302. When the transmission cam group 303 rotates, it can push the sliding block 305 to slide outward along the guide plate 3 by rotating the connecting rod 304, and the soil frame 301 moves outward accordingly. Under the action of the driving cam group 303, the sliding block 305 and the soil sampling frame 301 are completely pushed out from the large sampling frame by rotating the connecting rod 304. At this time, the soil sampling frame 301 is filled with sample soil. As the driving cam group 303 continues to rotate, the driving cam group 303 drives the sliding block 305 to slide and reset along the guide plate 3 by rotating the connecting rod 304. The soil sampling frame 301 is reset accordingly and the sample soil is taken back, thereby realizing the function of automatic sampling.

[0041] like Figure 5 , Figure 6 and Figure 8-Figure 11As shown, the transmission connection assembly includes a spline shaft 1051, a lifting frame 4, a connecting sleeve 4001, a guide cylinder 401, a guide rod 402, a support spring 403 and a limit assembly. The spline shaft 1051 is fixedly connected to the bottom of the transmission gear 105, and the bottom surface of the spline shaft 1051 contacts the top surface of the connecting shaft 302. The lifting frame 4 is slidably connected inside the top plate 2, and the bottom of the lifting frame 4 is rotatably connected to the connecting sleeve 4001. The connecting sleeve 4001 is slidably connected to the outside of the spline shaft 1051, and the top plate 2 is installed with A guide cylinder 401, an inner sliding rod of the guide cylinder 401 is connected to the lifting frame 4, a guide rod 402 is installed on the top of the inner lining plate 201, the lifting frame 4 is slidably connected with the guide rod 402, a support spring 403 is provided between the lifting frame 4 and the inner lining plate 201, the support spring 403 is sleeved outside the guide rod 402, one end of the support spring 403 is fixed on the lifting frame 4, and the other end is fixed on the top of the inner lining plate 201, a limit assembly is installed in the guide rod 402, and the limit assembly is used to limit the position of the lifting frame 4.

[0042] When the lifting slide 102 descends to the sampling depth, the lifting frame 4 is manually pushed down along the guide rod 402 and the support spring 403 is compressed. During the descent of the lifting frame 4, the connecting sleeve 4001 is driven down. When the connecting sleeve 4001 descends, it can be sleeved outside the connecting shaft 302. At this time, the spline shaft 1051 is connected to the connecting shaft 302 through the connecting sleeve 4001. When the transmission gear 105 rotates, the connecting sleeve 4001 and the connecting shaft 302 are driven to rotate through the spline shaft 1051. The lifting frame 4 is restricted by the limit assembly during its descent to prevent the lifting frame 4 from being pushed upward and reset by the support spring 403 during the sampling process.

[0043] like Figure 9-11 As shown, the limiting assembly includes a rotating shaft 404, a rotating torsion spring 405, a wedge block 406, a connecting spring 4061, a movable pull block 407, a connecting pull rod 408 and an unlocking assembly. The rotating shaft 404 is rotatably connected in the guide rod 402, the bottom of the rotating shaft 404 passes through the guide rod 402, the rotating shaft 404 and the guide rod 402 are connected through the rotating torsion spring 405, the wedge block 406 is slidably connected in the guide rod 402, the side of the wedge block 406 facing the lifting frame 4 is an inclined surface, the movable pull block 407 is slidably connected in the wedge block 406, the top of the movable pull block 407 is rotatably connected to the connecting pull rod 408, the other end of the connecting pull rod 408 is rotatably connected to the rotating shaft 404, a connecting spring 4061 is provided between the wedge block 406 and the movable pull block 407, one end of the connecting spring 4061 is fixed on the wedge block 406, and the other end is fixed on the movable pull block 407.

[0044] like Figure 8 and Fig.11As shown, the unlocking assembly includes an L-shaped rod 3052, a rotating push rod 3053 and a pushing torsion spring 3054. The L-shaped rod 3052 is fixedly connected to the sliding block 305. The rotating push rod 3053 is rotatably connected to the L-shaped rod 3052. A pushing torsion spring 3054 is provided between the rotating push rod 3053 and the L-shaped rod 3052.

[0045] During the process of the lifting frame 4 descending, it will contact the wedge block 406, and the lifting frame 4 will push the wedge block 406 to slide along the guide rod 402. At this time, the rotating shaft 404 is restricted by the rotating torsion spring 405 and cannot rotate, and the connecting rod 408 on the rotating shaft 404 cannot rotate either. The moving pull block 407 is restricted by the connecting rod 408 and cannot move. When the wedge block 406 slides into the guide rod 402, it compresses the connecting spring 4061. When the lifting frame 4 is out of contact with the wedge block 406, the wedge block 406 is pushed by the connecting spring 4061 to slide along the guide rod 402. The rod 402 slides outward to reset, and the wedge block 406 presses on the lifting frame 4 to limit its rise. During the sampling process, the connecting shaft 302 pushes the sliding block 305 to slide outside the large sampling frame along the guide plate 3 through the transmission cam group 303 and the rotating connecting rod 304. The L-shaped rod 3052 and the rotating push rod 3053 on the sliding block 305 move and contact the rotating shaft 404. At this time, the rotating push rod 3053 will swing downward. When the rotating push rod 3053 is out of contact with the rotating shaft 404, the rotating push rod 3053 is rotated to the upper side under the action of the pushing torsion spring 3054. The upper swing resets. After the sampling is completed, the connecting shaft 302 drives the sliding block 305 to slide and reset along the guide plate 3 into the large sampling frame through the transmission cam group 303 and the rotating connecting rod 304. At this time, the L-shaped rod 3052 and the rotating push rod 3053 contact the lower end of the rotating shaft 404 again. When the rotating push rod 3053 continues to move, it can push the rotating shaft 404 to rotate and cause the rotating torsion spring 405 to deform under force. When the rotating shaft 404 rotates, it pulls the moving block to move into the guide rod 402 through the connecting pull rod 408. The moving block pulls the wedge block through the connecting spring 4061. 406 slides into the guide rod 402, so that the wedge block 406 is out of contact with the lifting frame 4. At this time, the support spring 403 pushes the lifting frame 4 to slide upward along the guide rod 402 to reset. When the rotating push rod 3053 is out of contact with the rotating shaft 404, the lifting frame 4 has risen to the top of the wedge block 406, and the rotating torsion spring 405 drives the rotating shaft 404 to rotate and reset. During the rotation and reset process of the rotating shaft 404, the movable pull block 407, the connecting spring 4061 and the wedge block 406 are pushed to slide outward along the guide rod 402 to reset through the connecting pull rod 408.

[0046] Embodiment 3: Based on embodiment 2, Figure 6 , Fig.12 and Fig.13As shown, it also includes a soil storage frame 205, a sliding support plate 5, a reset spring 501, a fixed wedge block 502, a fixed concave frame 503, a wedge-shaped lifting block 504, a cylindrical rod 5041 and a support spring 505. The soil storage frame 205 is fixedly connected to the bottom plate 203, the top of the soil storage frame 205 is fixedly connected to the inner guide plate 202, the sliding support plate 5 is slidably connected in the inner guide plate 202, and a reset spring 501 is arranged between the sliding support plate 5 and the inner guide plate 202, one end of the reset spring 501 is fixed to the sliding support plate 5, and the other end is fixed to the inner guide plate 202. Inside the guide plate 202, a fixed wedge block 502 is fixedly connected to the inner guide plate 202, a fixed concave frame 503 is installed in the sliding support plate 5, a wedge-shaped lifting block 504 is slidably connected in the fixed concave frame 503, a supporting spring 505 is provided between the wedge-shaped lifting block 504 and the fixed concave frame 503, one end of the supporting spring 505 is fixed on the wedge-shaped lifting block 504, and the other end is fixed in the fixed concave frame 503, cylindrical rods 5041 are fixedly connected to both ends of the wedge-shaped lifting block 504, and the position of the cylindrical rod 5041 corresponds to the fixed wedge block 502.

[0047] When the sliding block 305 slides along the guide plate 3 and pushes the soil sampling frame 301 to collect the sample, when the sliding block 305 contacts the wedge-shaped lifting block 504, the wedge-shaped lifting block 504 is pushed to slide downward along the fixed concave frame 503 and compress the supporting spring 505. When the sliding block 305 is out of contact with the wedge-shaped lifting block 504, the wedge-shaped lifting block 504 slides upward along the fixed concave frame 503 and resets under the push of the supporting spring 505. After the sampling is completed, the sliding block 305 slides back along the guide plate 3. During the reset process of the sliding block 305, the vertical surface of the wedge-shaped lifting block 504 is compressed. When the sliding block 305 is moved and reset, the fixed wedge block 502 pushes the wedge-shaped lifting block 504 to descend along the fixed concave frame 503 and compresses the support spring 505. At this time, the reset spring 501 pushes the sliding support plate 505. The sliding support plate 5 and the device thereon slide along the inner guide plate 202 and reset to the top of the soil storage frame 205. When the soil borrowing frame 301 slides downward into the soil storage frame 205, the soil borrowing frame 301 in the placement frame 204 slides downward into the groove at the front end of the sliding block 305. At this time, the sliding support plate 5 is just pushed to reset by the reset spring 501 and stuck at the bottom of the soil borrowing frame 301 to provide support for the soil borrowing frame 301.

[0048] like Figure 8 As shown, it also includes a top support rod 3051, and the top support rod 3051 is fixedly connected to the sliding block 305, and the top support rod 3051 is used to support the soil frame 301 in the placement frame 204.

[0049] When the sliding block 305 slides along the guide plate 3 and pushes the soil taking frame 301 to slide outward to take soil, the top support rod 3051 moves with the sliding block 305 to the bottom of the placing frame 204 to provide support for the soil storage frame 205 in the placing frame 204. When the sliding block 305 slides back to its original position along the guide plate 3, the top support rod 3051 moves away from the bottom of the placing frame 204, and the soil storage frame 205 in the placing frame 204 slides down for the next sampling.

[0050] like Fig.14 As shown, it also includes a sliding baffle 6 and a material-blocking spring 601. The bottom of the bottom plate 203 is slidably connected with the sliding baffle 6. The sliding baffle 6 is located at the bottom of the soil storage frame 205. The sliding baffle 6 is used to support the soil taking frame 301 stored in the soil storage frame 205. The sliding baffle 6 and the bottom plate 203 are connected through the material-blocking spring 601. One end of the material-blocking spring 601 is fixed on the sliding baffle 6, and the other end is fixed on the bottom plate 203.

[0051] After the soil taking frame 301 falls into the soil storage frame 205, it will be supported by the sliding baffle 6. After sampling is completed, the sliding baffle 6 is manually pulled open. At this time, the material blocking spring 601 is compressed, and the bottom outlet of the soil storage frame 205 is opened, so that the soil taking frame 301 in the soil storage frame 205 can be taken out. After the collection is completed, the sliding baffle 6 is released, and the material blocking spring 601 can pull the sliding baffle 6 to move and reset and re-cover the bottom outlet of the soil storage frame 205.

[0052] The above is a detailed introduction to the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for general technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A soil sampling instrument for natural grassland ecological management, characterized by: The invention comprises a vehicle body (1), a vertical guide frame (101), a lifting slide plate (102), a control motor (103), a connecting rod (104), a transmission shaft (1041), a transmission gear (105), a top plate (2), an inner lining plate (201), an inner guide plate (202), a bottom plate (203), a placement frame (204), a digging mechanism and a sampling mechanism. The vehicle body (1) is fixedly connected with the vertical guide frame (101), the lifting slide plate (102) is slidably connected in the vertical guide frame (101), a through hole capable of placing a clamping rod is provided on the outer side of the vertical guide frame (101), and the lifting slide plate (102) can be supported by inserting the clamping rod into the through hole in the vertical guide frame (101), the lifting slide plate (102) is installed with a control motor (103), and the lifting slide plate (102) is provided with a control motor (103). ) is fixedly connected to a connecting rod (104), a transmission shaft (1041) is rotatably connected to the connecting rod (104), an output shaft of the control motor (103) is connected to the transmission shaft (1041), the transmission shaft (1041) is rotatably connected to the top plate (2), the top plate (2), the placement frame (204), the inner lining plate (201), the inner guide plate (202) and the bottom plate (203) together form a large sampling frame, the placement frame (204) is fixedly connected to the bottom of the top plate (2), the bottom of the placement frame (204) is fixedly connected to the inner lining plate (201), the inner lining plate (201), the inner guide plate (202) and the bottom plate (203) are fixedly connected via an arc-shaped outer plate, the digging mechanism is used for digging soil downwards along the ground, and the sampling mechanism is used for collecting test samples from the excavated pit wall.

2. A soil sampling instrument for natural grassland ecological management as claimed in claim 1, characterized in that: The digging mechanism comprises a digging gear (109), a spiral drill rod (110) and a soil discharge assembly. The bottom of the inner guide plate (202) is rotatably connected to the spiral drill rod (110), the top of the spiral drill rod (110) is fixedly connected to the digging gear (109), and the soil discharge assembly is installed in the large sampling frame. The soil discharge assembly is used to transport soil loosened by the spiral drill rod (110) upwards.

3. A soil sampling instrument for natural grassland ecological management as claimed in claim 2, characterized in that: The soil discharge assembly comprises a soil discharge gear (106), a soil discharge spiral blade (107), a soil discharge barrel (1071) and a rotating gear (108); the soil discharge barrel (1071) is fixedly connected to the inner guide plate (202) and the bottom plate (203); the soil discharge spiral blade (107) is rotatably connected inside the soil discharge barrel (1071); the top of the soil discharge spiral blade (107) is rotatably connected to the soil discharge gear (106); the soil discharge gear (106) is meshed with the transmission gear (105); the top of the soil discharge barrel (1071) on the bottom plate (203) is rotatably connected to the rotating gear (108); the soil discharge spiral blade (107) is fixedly connected to the rotating gear (108); and the rotating gear (108) is meshed with the digging gear (109).

4. A soil sampling instrument for natural grassland ecological management as claimed in claim 1, characterized in that: The sampling mechanism comprises a guide plate (3), a soil sampling frame (301), a connecting shaft (302), a transmission cam group (303), a rotating connecting rod (304), a sliding block (305) and a transmission connection assembly. The top of the inner guide plate (202) is fixedly connected with the guide plate (3), the inner guide plate (3) is slidably connected with the sliding block (305), the soil sampling frame (301) is stored in the placement frame (204), and the rear side of the soil sampling frame (301) cooperates with the sliding block (305). 01) The top is rotatably connected to a connecting shaft (302), the inner guide plate (202) is rotatably connected to a transmission cam group (303), the transmission cam group (303) is rotatably connected to a rotating connecting rod (304) at an eccentric position, the other end of the rotating connecting rod (304) is rotatably connected to a sliding block (305), and the transmission connection assembly is installed in the top plate (2) and the inner lining plate (201), and the transmission connection assembly is used to connect the transmission shaft (1041) and the connecting shaft (302) together.

5. A soil sampling instrument for natural grassland ecological management as claimed in claim 4, characterized in that: The transmission connection assembly comprises a spline shaft (1051), a lifting frame (4), a connecting sleeve (4001), a guide cylinder (401), a guide rod (402), a support spring (403) and a limit assembly. The bottom of the transmission gear (105) is fixedly connected with the spline shaft (1051). The lifting frame (4) is slidably connected inside the top plate (2). The bottom of the lifting frame (4) is rotatably connected with the connecting sleeve (4001). The connecting sleeve (4001) is slidably connected to the outside of the spline shaft (1051). The top of the top plate (2) is equipped with a guide cylinder (401). The sliding rod in the guide cylinder (401) is connected to the lifting frame (4). The top of the inner lining plate (201) is equipped with a guide rod (402). The lifting frame (4) is slidably connected to the guide rod (402). A support spring (403) is provided between the lifting frame (4) and the inner lining plate (201). The limit assembly is installed in the guide rod (402). The limit assembly is used to limit the position of the lifting frame (4).

6. A soil sampling instrument for natural grassland ecological management as claimed in claim 5, characterized in that: The limiting assembly comprises a rotating shaft (404), a rotating torsion spring (405), a wedge block (406), a connecting spring (4061), a movable pull block (407), a connecting pull rod (408) and an unlocking assembly. The rotating shaft (404) is rotatably connected inside the guide rod (402). The bottom of the rotating shaft (404) passes through the guide rod (402). The rotating shaft (404) and the guide rod (402) are connected via the rotating torsion spring (405). The wedge block (406) is slidably connected inside the guide rod (402). The movable pull block (407) is slidably connected inside the wedge block (406). The top of the movable pull block (407) is rotatably connected to the connecting pull rod (408). The other end of the connecting pull rod (408) is rotatably connected to the rotating shaft (404). A connecting spring (4061) is provided between the wedge block (406) and the movable pull block (407).

7. A soil sampling instrument for natural grassland ecological management as claimed in claim 6, characterized in that: The unlocking assembly comprises an L-shaped rod (3052), a rotating push rod (3053) and a pushing torsion spring (3054); the sliding block (305) is fixedly connected to the L-shaped rod (3052); the L-shaped rod (3052) is rotatably connected to the rotating push rod (3053); and a pushing torsion spring (3054) is provided between the rotating push rod (3053) and the L-shaped rod (3052).

8. The soil sampling instrument for natural grassland ecological management as claimed in claim 1, characterized in that: The invention also comprises a soil storage frame (205), a sliding support plate (5), a return spring (501), a fixed wedge block (502), a fixed concave frame (503), a wedge-shaped lifting block (504), a cylindrical rod (5041) and a supporting spring (505); the soil storage frame (205) is fixedly connected to the bottom plate (203); the top of the soil storage frame (205) is fixedly connected to the inner guide plate (202); the inner guide plate (202) is slidably connected to the sliding support plate (5); the sliding support plate (5 ) and the inner guide plate (202), a return spring (501) is provided between the inner guide plate (202), a fixed wedge block (502) is fixedly connected inside the inner guide plate (202), a fixed concave frame (503) is installed inside the sliding support plate (5), a wedge-shaped lifting block (504) is slidably connected inside the fixed concave frame (503), a supporting spring (505) is provided between the wedge-shaped lifting block (504) and the fixed concave frame (503), and cylindrical rods (5041) are fixedly connected at both ends of the wedge-shaped lifting block (504).

9. A soil sampling instrument for natural grassland ecological management as claimed in claim 8, characterized in that: It also includes a top support rod (3051), and the sliding block (305) is fixedly connected to the top support rod (3051).

10. A soil sampling instrument for natural grassland ecological management according to claim 8, characterized in that: It also includes a sliding baffle (6) and a material-blocking spring (601); the bottom of the bottom plate (203) is slidably connected to the sliding baffle (6); the sliding baffle (6) and the bottom plate (203) are connected via the material-blocking spring (601).

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