Soil sampling equipment

Abstract

The invention relates to the technical field of soil sampling, and discloses soil sampling equipment which comprises a vehicle body, a mounting plate, a driving motor, a driving gear, a driven gear, a belt transmission part, a reciprocating screw rod, a supporting top frame, a lifting frame and the like, a mounting plate is fixedly connected into the vehicle body, a driving motor is mounted on the mounting plate, a driving gear is rotatably connected into the vehicle body, an output shaft of the driving motor is fixedly connected with the driving gear, the driving motor drives the driving gear to rotate, two driven gears are rotatably connected into the vehicle body, and the two driven gears are located at the two ends of the driving gear respectively. According to the device, the lifting frame and the soil sampling frame are controlled to move up and down through the reciprocating lead screw, the soil sampling frame and the collecting cylinders can be accurately controlled to enter the soil by the specified depth, it is ensured that different collecting cylinders sample at the same depth every time, and the sampling efficiency is improved while the sample collecting depth consistency is ensured; depth deviation caused by operation difference during manual sampling is avoided, and the reliability of experimental data is ensured.

Description

Technical Field

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

[0002] Soil heavy metal detection is an important basic work in the fields of environmental protection and agricultural production. Farmland is easily contaminated by heavy metals due to fertilization, pesticide use or sewage irrigation. Heavy metals in the soil will inhibit microbial activity, destroy the soil enzyme system, reduce soil fertility, and affect the ecological cycle. Moreover, heavy metals in the soil will be absorbed and accumulated by crops. Long-term consumption of agricultural products containing heavy metals will endanger human health.

[0003] Soil sampling methods include manual sampling or mechanical sampling equipment. Manual sampling is labor-intensive and has low sampling efficiency. The sampling depth is easily affected by the operator's experience, making it difficult to ensure sample consistency. In the process of using mechanical sampling equipment for sampling, when multiple samples are taken at different locations, the collection tube will shift due to different soil resistance at each location or equipment vibration, resulting in sampling position deviation, affecting the comparability of subsequent test data. In addition, the collection tube of existing equipment needs to be placed and collected manually, which reduces sampling efficiency. It may also cause the operator to be contaminated by the soil sample due to manual contact with the sample, endangering the operator's health.

[0004] Therefore, it is necessary to design a soil sampling device that can limit the collection tube and ensure consistent sampling depth, and can also automatically place and recover the collection tube, so as to solve the problems of the existing device in which the collection tube will be affected by soil resistance and deflected during the sampling process, and the manual collection and placement of the collection tube will affect the sampling efficiency, and the operator will be easily contaminated by the soil sample during the sampling process. Summary of the Invention

[0005] The present invention provides a soil sampling device that can limit the collection tube and ensure consistent sampling depth, and can also automatically place and recover the collection tube, so as to solve the problems of existing devices in which the collection tube may be affected by soil resistance and deflected during the sampling process, and the sampling efficiency is affected by manual collection and release of the collection tube, and the operator is easily contaminated by the soil sample during the sampling process.

[0006] The technical solution of the present invention is: a soil sampling equipment, including a car body, a mounting plate, a driving motor, a driving gear, a driven gear, a belt transmission, a reciprocating screw rod, a supporting top frame, a lifting frame, a soil sampling frame, a collection tube pushing mechanism and a collection tube taking out mechanism, the car body is fixedly connected with a mounting plate, the driving motor is installed on the mounting plate, the car body is rotatably connected with the driving gear, the output shaft of the driving motor is fixed with the driving gear, the car body is rotatably connected with the driven gear, the driven gear is meshed with the driving gear, the car body is fixed with the supporting top frame, the car body is rotatably connected with the reciprocating screw rod, the top of the reciprocating screw rod is rotatably connected with the supporting top frame, the driven gear and the corresponding reciprocating screw rod are connected through a belt transmission member, the reciprocating screw rod is externally threadedly connected with the lifting frame, and the lifting frame is slidably connected with the soil sampling frame, a space for placing the collection tube is opened inside the soil sampling frame, the collection tube pushing mechanism is installed on the mounting plate, the collection tube pushing mechanism is used to send an empty collection tube into the soil sampling frame, the collection tube taking out mechanism is installed in the car body, and the collection tube taking out mechanism is used to push out the collection tube after sampling.

[0007] Preferably, the collection tube pushing mechanism includes a pushing gear ring, a pushing gear, a pushing torsion spring, a pushing cam, a sliding push frame, a return spring, an arc-shaped push plate and a storage assembly. A driven gear is coaxially fixed with a pushing gear ring, a pushing gear is rotatably connected to the mounting plate, a pushing torsion spring is provided between the pushing gear and the mounting plate, the pushing gear is connected to the pushing cam through a one-way bearing, a sliding push frame is slidably connected to the vehicle body, a return spring is provided between the sliding push frame and the vehicle body, an arc-shaped push plate is fixed to the sliding push frame, and the storage assembly is installed in the vehicle body. The storage assembly is used to store and push the collection tube upward.

[0008] Preferably, the storage assembly includes a storage cylinder, a support base plate, a support spring and a U-shaped guide plate. The storage cylinder is fixedly connected to the car body, the support base plate is slidably connected to the storage cylinder, a support spring is provided between the support base plate and the storage cylinder, a U-shaped guide plate is fixedly connected to the top of the storage cylinder, and a through hole is opened at one end of the U-shaped guide plate close to the arc-shaped push plate.

[0009] Preferably, the collection tube removal mechanism includes a rotating shaft, an ejection gear ring, an ejection torsion spring, an ejection gear, an ejection cam, a sliding push rod, a fixed seat, an ejection arc plate, an ejection spring and a receiving assembly. The other driven gear is fixedly connected to a rotating shaft, a ejection gear ring is fixedly connected to the rotating shaft, an ejection gear is rotatably connected to the vehicle body, an ejection torsion spring is provided between the ejection gear and the vehicle body, the ejection gear is connected to the ejection cam through a one-way bearing, a sliding push rod is slidably connected to the vehicle body, a fixed seat is fixed to the sliding push rod, the ejection cam is in contact with the surface of the fixed seat, a ejection arc plate is fixed to the sliding push rod, an ejection arc plate is provided between the ejection spring and the vehicle body, and the receiving assembly is installed in the vehicle body. The receiving assembly is used to receive the collection tube after sampling.

[0010] Preferably, the receiving assembly includes a storage frame, an L-shaped slide bar, a sliding rack, a reset spring, a positioning gear, a rotating receiving frame and a receiving frame. The storage frame is fixedly connected to the vehicle body, the L-shaped slide bar is slidingly connected to the vehicle body, the L-shaped slide bar is fixedly connected to the sliding push rod, the sliding rack is slidingly connected to the vehicle body, a reset spring is provided between the sliding rack and the vehicle body, the positioning gear is rotatably connected to the vehicle body, the rotating receiving frame is rotatably connected to the storage frame, the positioning gear and the rotating receiving frame are connected through a one-way bearing, the rotating receiving frame is fixedly connected to the rotating receiving frame, and the collection tube after sampling can be pushed into the receiving frame.

[0011] Preferably, it also includes a limit assembly for limiting the movement of the collecting tube, the limit assembly includes a guide groove, a rotating blocking frame, an arc-shaped slide, a connecting frame and a support spring, a guide groove is provided in the soil taking frame, a rotating blocking frame is rotatably connected in the guide groove of the soil taking frame, a connecting frame is slidably connected to the rotating blocking frame, a support spring is provided between the connecting frame and the rotating blocking frame, an arc-shaped slide is provided on the rotating blocking frame, a hemispherical protrusion is fixed in the connecting frame, and the hemispherical protrusion in the connecting frame is located in the arc-shaped slide.

[0012] Preferably, it also includes a rotary sampling mechanism, which includes a fixed baffle, a fixed rack, a downward pressure cam, a transmission gear and an annular cutter. A fixed baffle is fixed to the vehicle body, a fixed rack is fixed to the fixed baffle, a downward pressure cam is rotatably connected to the lifting frame, and the downward pressure cam is coaxially fixed with a transmission gear, and the transmission gear can engage with the fixed rack. An annular cutter is fixed to the bottom of the rotating blocking frame, and the annular cutter is located below the soil frame.

[0013] Preferably, it further comprises a buffer spring and a fixed guide rod, a buffer spring is provided between the lifting frame and the soil borrowing frame, a fixed guide rod is fixedly connected to the lifting frame, and the connecting frame is slidably connected to the fixed guide rod.

[0014] Preferably, it also includes a lifting plate, a guide rod and a supporting spring. The guide rod is fixedly connected to the body of the vehicle, and the lifting plate is slidably connected to the outside of the guide rod. A supporting spring is provided between the lifting plate and the body. When the lifting plate is raised to the highest point, it is flush with the top surface of the storage cylinder.

[0015] Preferably, the soil sampling frame, the collecting tube and the receiving frame that are in contact with the sample soil are all made of plastic, and the annular cutter is made of stainless steel to prevent the sampling tool itself from contaminating the soil during the sampling process.

[0016] The beneficial effects are as follows: 1. This device drives the driving gear and the driven gear to rotate through the driving motor, and then drives the reciprocating screw to rotate through the belt transmission part. The reciprocating screw controls the lifting frame and the soil sampling frame to move up and down, and can accurately control the soil sampling frame and the collection tube to enter the specified depth in the soil, ensuring that different collection tubes take samples at the same depth each time, and replacing manual excavation with mechanical drive to improve sampling efficiency while ensuring the consistency of sample collection depth, avoiding depth deviation caused by operational differences during manual sampling, and ensuring the reliability of experimental data.

[0017] 2. The driven gear drives the sliding push frame to automatically push the empty collection tubes into the soil frame. During the transportation, the U-shaped guide plate limits the movement of the collection tube to avoid movement deviation of the collection tube. Another driven gear drives the push-out arc plate to move, so as to automatically push out the collection tube after sampling. The push-out arc plate can drive the receiving component to operate during the movement, so as to transport different collection tubes to different locations for storage.

[0018] 3. During the soil sampling process, under the action of the transmission gear and the fixed rack, the downward pressure cam rotates and pushes the connecting frame down, and under the action of the expansion spring, the connecting frame continuously moves up and down along the rotating blocking frame to drive the rotating blocking frame to rotate back and forth continuously, thereby driving the annular cutter to rotate back and forth continuously, so that the soil sampling frame can be smoothly inserted into the soil to collect samples.

[0019] 4. During the sampling process, the rotating blocking frame rotates and limits the collection tube from all sides together with the soil sampling frame, so that the collection tube remains stable during the sampling process to avoid the soil pushing the collection tube to move in the soil sampling frame during the sampling process, ensuring the accuracy of the sample collection position and preventing sample leakage.

[0020] 5. When pushing or removing the collection tube, the soil frame slides relative to the lifting frame and compresses or stretches the buffer spring, which has a buffering effect, reduces the hard contact impact between the soil frame and the lifting frame, reduces component wear, and ensures that the collection tube is pushed or removed smoothly to avoid sample spillage. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic structural diagram of the present invention as a whole.

[0022] Figure 2 It is a structural schematic diagram of the collection tube pushing mechanism of the present invention.

[0023] Figure 3 It is a schematic structural diagram of the interior of the vehicle body of the present invention.

[0024] Figure 4 It is a structural schematic diagram of the collection tube taking-out mechanism of the present invention.

[0025] Figure 5It is a structural schematic diagram of the receiving component of the present invention.

[0026] Figure 6 This is a schematic diagram of the structure after the storage cylinder of the present invention is filled with collection cylinders.

[0027] Figure 7 It is a structural schematic diagram of the bottom of the supporting top frame of the present invention.

[0028] Figure 8 It is a structural schematic diagram of the pressing cam of the present invention.

[0029] Figure 9 This is a schematic diagram of the explosion of the structure of the soil frame of the present invention.

[0030] Figure 10 It is a structural schematic diagram of the lifting plate of the present invention.

[0031] Figure 11 This is a structural diagram of the rotary blocking frame of the present invention after rotating 90 degrees.

[0032] Parts names and serial numbers in the figure: 1. Car body, 1001. Fixed baffle, 1002. Fixed rack, 1003. Storage frame, 101. Mounting plate, 102. Driving motor, 103. Driving gear, 104. Driven gear, 105. Belt transmission, 106. Reciprocating screw, 107. Support top frame, 2. Pushing gear ring, 201. Pushing gear, 202. Pushing torsion spring, 203. Pushing cam, 204. Sliding push frame, 205. Return spring, 206. Arc push plate, 207. Storage cylinder, 208. Support bottom plate, 209. Support spring, 210. U-shaped guide plate, 3. Rotating shaft, 301. Pushing gear ring, 302. Pushing torsion spring, 303 , ejection gear, 304, ejection cam, 305, sliding push rod, 3051, fixed seat, 306, ejection arc plate, 3061, ejection spring, 4, L-shaped slide bar, 401, sliding rack, 402, return spring, 403, adjustment gear, 404, rotating receiving frame, 405, receiving frame, 5, lifting frame, 5001, buffer spring, 501, pressing cam, 5011, fixed guide rod, 502, transmission gear, 6, soil taking frame, 6001, guide groove, 601, rotating blocking frame, 6011, arc slide groove, 6012, annular cutter, 602, connecting frame, 603, opening spring, 7, lifting plate, 701, guide rod, 702, holding up spring. DETAILED DESCRIPTION

[0033] The preferred technical solutions of the present invention will be described in detail below with reference to the accompanying drawings.

[0034] Example 1: A soil sampling device, such as Figures 1-11As shown, it includes a vehicle body 1, a mounting plate 101, a driving motor 102, a driving gear 103, a driven gear 104, a belt transmission part 105, a reciprocating screw rod 106, a supporting top frame 107, a lifting frame 5, a soil taking frame 6, a collecting tube pushing mechanism and a collecting tube taking mechanism. The mounting plate 101 is fixedly connected in the vehicle body 1, and the driving motor 102 is installed on the mounting plate 101. The driving gear 103 is rotatably connected in the vehicle body 1, and the output shaft of the driving motor 102 is fixedly connected to the driving gear 103. The driving motor 102 drives the driving gear 103 to rotate, and the driven gear 104 is rotatably connected in the vehicle body 1. There are two driven gears 104, which are respectively located at both ends of the driving gear 103, and the two driven gears 104 are meshed with the driving gear 103. A supporting top frame 107 is fixedly connected to the vehicle body 1. The reciprocating screw rod 106 is rotatably connected in the vehicle body 1, and the top of the reciprocating screw rod 106 is fixedly connected to the supporting top frame The frame 107 is rotatably connected, and the driven gear 104 is connected to the corresponding reciprocating screw rod 106 through a belt transmission member 105. The driven gear 104 drives the reciprocating screw rod 106 to rotate through the belt transmission member 105. The reciprocating screw rod 106 is externally threadedly connected to the lifting frame 5, and the lifting frame 5 is slidably connected with a soil sampling frame 6. There are two lifting frames 5, and the soil sampling frame 6 is located between the two lifting frames 5. A space for placing a collection tube is opened inside the soil sampling frame 6. The space for placing the collection tube on the soil sampling frame 6 is evenly spaced so that the collection tube can collect samples at the same depth during each sampling process. During the rotation of the reciprocating screw rod 106, the soil sampling frame 6 can be driven up and down by the lifting frame 5. The collection tube pushing mechanism is installed on the mounting plate 101. The collection tube pushing mechanism is used to send an empty collection tube into the soil sampling frame 6. The collection tube taking out mechanism is installed in the vehicle body 1. The collection tube taking out mechanism is used to push out the collection tube after sampling.

[0035] When sampling, the vehicle body 1 is controlled to move along the ground to the sampling position, and then the vehicle body 1 is locked and the driving motor 102 is started. The driving motor 102 drives the two driven gears 104 to rotate through the active gear 103. During the rotation of the two driven gears 104, the reciprocating screw rod 106 is driven to rotate through the corresponding belt transmission member 105. During the rotation of the reciprocating screw rod 106, the soil frame 6 is driven to descend through the lifting frame 5. During the descent of the soil frame 6, the collecting tube pushing mechanism can push the sampling collecting tube into the soil frame 6. The space for storing the collecting tubes on the soil frame 6 is evenly spaced. When the soil frame 6 descends to the lowest point, different collecting tubes collect samples of different depths respectively. After the lifting frame 5 descends to the lowest point, the soil frame 6 completes sampling. Then the lifting frame 5 will move upward along the reciprocating screw rod 106 to reset, and at the same time drive the collecting tube to rise and reset through the soil frame 6 and bring the sample soil upward. During the rising of the soil frame 6, the collecting tube taking out mechanism can push out the collecting tube containing the sample soil inside it.

[0036] Example 2: Based on Example 1, Figure 2 and Figure 6 As shown, the collection tube pushing mechanism includes a pushing gear ring 2, a pushing gear 201, a pushing torsion spring 202, a pushing cam 203, a sliding push frame 204, a return spring 205, an arc-shaped push plate 206 and a storage component. A driven gear 104 is coaxially fixed with the pushing gear ring 2, and the mounting plate 101 is rotatably connected to the pushing gear 201. A pushing torsion spring 202 is provided between the pushing gear 201 and the mounting plate 101. The two ends of the pushing torsion spring 202 are respectively fixed to the mounting plate 101 and the pushing gear 201. The pushing gear 201 is pushed by a one-way The bearing is connected to the pushing cam 203, and a sliding push frame 204 is slidably connected in the vehicle body 1. When the pushing cam 203 rotates, it can push the sliding push frame 204 to slide along the vehicle body 1. A return spring 205 is provided between the sliding push frame 204 and the vehicle body 1. The two ends of the return spring 205 are respectively fixed on the vehicle body 1 and the sliding push frame 204. An arc-shaped push plate 206 is fixed on the sliding push frame 204. The arc-shaped push plate 206 can push the collection barrel into the soil frame 6. The storage component is installed in the vehicle body 1, and the storage component is used to store and push the collection barrel upward.

[0037] like Figure 2 and Figure 6 As shown, the storage assembly includes a storage cylinder 207, a support base plate 208, a support spring 209 and a U-shaped guide plate 210. The storage cylinder 207 is fixedly connected to the vehicle body 1, and the support base plate 208 is slidably connected to the storage cylinder 207. A support spring 209 is provided between the support base plate 208 and the storage cylinder 207. The two ends of the support spring 209 are respectively fixed on the support base plate 208 and the storage cylinder 207. A U-shaped guide plate 210 is fixed to the top of the storage cylinder 207. A through hole is opened at one end of the U-shaped guide plate 210 close to the arc-shaped push plate 206. The U-shaped guide plate 210 can limit the moving direction of the collection cylinder.

[0038] Before sampling, push the collection tube along the U-shaped guide plate 210 to the top of the storage tube 207, then push the collection tube to slide downward along the storage tube 207, the support bottom plate 208 is squeezed by the collection tube and slides downward along the storage tube 207, and the support spring 209 is compressed. Before each sampling, two collection tubes are placed in the storage tube 207, and the third collection tube remains in the U-shaped guide plate 210, and the third collection tube is located at the top of the storage tube 207. After placement, the top surface of the top collection tube contacts the inner wall of the vehicle body 1, and the driving motor 102 drives the driving gear 103 to rotate clockwise, pushing the gear ring 2 along. The driven gear 104 rotates counterclockwise, and the pushing gear ring 2 rotates, driving the pushing gear 201 to rotate clockwise. During the clockwise rotation of the pushing gear 201, the pushing torsion spring 202 accumulates force and deforms, and at this time the pushing gear 201 does not drive the pushing cam 203 to rotate. When the pushing gear ring 2 is out of contact with the pushing gear 201, under the action of the pushing torsion spring 202, the pushing gear 201 rotates counterclockwise to reset, which will drive the pushing cam 203 to rotate. At this time, the pushing gear 201 can just be driven to rotate 360 ​​degrees. During the rotation of the pushing cam 203, it will push the sliding push frame 204 The push cam 203 pushes the sliding push frame 204 to slide in the process of compressing the return spring 205, and the arc-shaped push plate 206 pushes the U-shaped guide plate 210 to move the collecting cylinder toward the soil frame 6. When the collecting cylinder is pushed into the soil frame 6, the push cam 203 continues to rotate. At this time, the sliding push frame 204 is pushed by the return spring 205. 04 slides along the vehicle body 1 in the direction away from the storage cylinder 207, and the arc-shaped push plate 206 moves accordingly. When the sliding push frame 204 slides back, the collection cylinder in the storage cylinder 207 is no longer restricted by the sliding push frame 204. Under the push of the support spring 209, the support bottom plate 208 will slide upward along the storage cylinder 207 and push the collection cylinder outward. When the top surface of the collection cylinder contacts the vehicle body 1, the support bottom plate 208 stops sliding. At this time, the top collection cylinder is just pushed into the U-shaped guide plate 210. When the bottom surface of the soil frame 6 contacts the soil, all three collection cylinders are just sent into the soil frame 6.

[0039] like Figure 2-Figure 5As shown, the collection tube removal mechanism includes a rotating shaft 3, a pushing gear ring 301, a pushing torsion spring 302, a pushing gear 303, a pushing cam 304, a sliding push rod 305, a fixing seat 3051, a pushing arc plate 306, a pushing spring 3061 and a receiving assembly. The other driven gear 104 is fixedly connected to the rotating shaft 3, and the rotating shaft 3 rotates with the driven gear 104. The pushing gear ring 301 is fixed to the rotating shaft 3, and the pushing gear 303 is connected to the vehicle body 1. A pushing torsion spring 302 is provided between the pushing gear 303 and the vehicle body 1, and the two ends of the pushing torsion spring 302 are respectively fixed to the pushing gear 303 and the vehicle body 1. The ejection gear 303 is connected to the ejection cam 304 through a one-way bearing. The ejection cam 304 can be driven to rotate by the ejection gear 303. A sliding push rod 305 is slidably connected to the vehicle body 1. A fixed seat 3051 is fixed on the sliding push rod 305. The ejection cam 304 contacts the surface of the fixed seat 3051. A ejection arc plate 306 is fixed on the sliding push rod 305. A ejection spring 3061 is provided between the ejection arc plate 306 and the vehicle body 1. Both ends of the ejection spring 3061 are respectively fixed on the ejection arc plate 306 and the vehicle body 1. The receiving component is installed in the vehicle body 1, and the receiving component is used to receive the collection tube after sampling.

[0040] like Figure 2 、 Figure 4 and Figure 5 As shown, the receiving assembly includes a storage frame 1003, an L-shaped slide bar 4, a sliding rack 401, a return spring 402, a positioning gear 403, a rotating receiving frame 404 and a receiving frame 405. The storage frame 1003 is fixedly connected to the vehicle body 1, and the L-shaped slide bar 4 is slidingly connected inside the vehicle body 1. The L-shaped slide bar 4 is fixedly connected to the sliding push rod 305. The sliding rack 401 is slidingly connected inside the vehicle body 1. A return spring 402 is provided between the sliding rack 401 and the vehicle body 1. Both ends of the return spring 402 are respectively fixed between the sliding rack 401 and the vehicle body 1. The positioning gear 403 is rotatably connected inside the vehicle body 1, and the rotating receiving frame 404 is rotatably connected inside the storage frame 1003. The positioning gear 403 and the rotating receiving frame 404 are connected through a one-way bearing. The rotating receiving frame 404 is fixedly connected to the receiving frame 405, and the collection tube after sampling can be pushed into the receiving frame 405.

[0041] The driven gear 104 drives the ejection gear ring 301 to rotate counterclockwise through the rotating shaft 3. When the ejection gear ring 301 rotates counterclockwise, it drives the ejection gear 303 to rotate clockwise. During the clockwise rotation of the ejection gear 303, the ejection cam 304 does not rotate accordingly, and the ejection torsion spring 302 accumulates force and deforms. When the ejection gear ring 301 is out of contact with the ejection gear 303, the ejection gear 303 rotates counterclockwise to reset under the action of the ejection torsion spring 302. At this time, the ejection gear 303 can just rotate 360 ​​degrees, and the ejection gear 303 is pushed back. The counterclockwise rotation of the output gear 303 will drive the ejection cam 304 to rotate. During the rotation of the ejection cam 304, the ejection spring 3061 will first drive the sliding push rod 305 to slide along the vehicle body 1 toward the soil-taking frame 6. At the same time, the collection tube containing the sample in the soil-taking frame 6 is pushed outward into the receiving frame 405 through the ejection arc plate 306. During the sliding push rod 305 sliding toward the soil-taking frame 6, the L-shaped slide bar 4 slides accordingly and drives the sliding rack 401 to move, and the return spring 402 is compressed. During this process, the sliding rack 401 will drive the adjusting gear 403 to rotate. Since the adjusting gear 403 is connected to the rotating receiving frame 404 through a one-way bearing, the adjusting gear 403 will not drive the rotating receiving frame 404 to rotate. When the arc plate 306 pushes the collecting tube into the receiving frame 405, as the pushing cam 304 continues to rotate, the pushing cam 304 will drive the sliding push rod 305 to slide along the vehicle body 1 in the direction away from the soil-taking frame 6 through the fixed seat 3051, and the arc plate 306 will then be pushed out from the soil-taking frame 6. Frame 6 slides outward, during this process, under the push of the reset spring 402, the sliding rack 401 and the L-shaped slide bar 4 slide and reset inside the vehicle body 1, and the sliding rack 401 will drive the rotating receiving rack 404 and the receiving frame 405 to rotate through the adjusting gear 403 during the sliding reset process. When the sliding rack 401 slides and resets, the rotating receiving rack 404 is driven to rotate 120°, and a new receiving frame 405 rotates with the rotating receiving rack 404 to the receiving position to receive the next collection tube containing a sample.

[0042] Example 3: Based on Example 2, Figure 7-Figure 9As shown, it also includes a limit assembly for limiting the movement of the collecting tube, and the limit assembly includes a guide groove 6001, a rotating blocking frame 601, an arc-shaped slide 6011, a connecting frame 602 and a support spring 603. A guide groove 6001 is provided in the soil taking frame 6, and a rotating blocking frame 601 is rotatably connected in the guide groove 6001 of the soil taking frame 6, and a connecting frame 602 is slidably connected to the rotating blocking frame 601. A support spring 603 is provided between the connecting frame 602 and the rotating blocking frame 601, and the support spring 603 is sleeved on the outside of the rotating blocking frame 601, and both ends of the support spring 603 are respectively fixed on the rotating blocking frame 601 and the connecting frame 602. An arc-shaped slide 6011 is provided on the rotating blocking frame 601, and a hemispherical protrusion is fixed in the connecting frame 602. The hemispherical protrusion in the connecting frame 602 is located in the arc-shaped slide 6011.

[0043] After the collecting tube is completely pushed into the soil frame 6, the soil frame 6 will come into contact with the ground. At this time, as the lifting frame 5 continues to descend, the lifting frame 5 will first drive the connecting frame 602 to slide downward along the rotating blocking frame 601 and compress the stretching spring 603. During the descent of the connecting frame 602, the rotating blocking frame 601 will be driven to rotate through the hemispherical protrusion and arc groove 6011 inside it. When the rotating blocking frame 601 rotates 90°, the rotating blocking frame 601 and the soil frame 6 restrict the collecting tube from all sides to prevent the collecting tube from being pushed by the soil during the collection process and moving in the soil frame 6. At this time, the downward force applied by the connecting frame 602 to the rotating blocking frame 601 through the expansion spring 603 is large enough, the soil sampling frame 6 will be inserted downward into the soil and sampling is completed. When the sampling is completed, the lifting frame 5 rises and resets under the action of the reciprocating screw rod 106. Under the push of the expansion spring 603, the connecting frame 602 will first slide upward along the rotating blocking frame 601 to reset. At the same time, under the action of the hemispherical protrusion and the arc-shaped slide groove 6011 in the connecting frame 602, the rotating blocking frame 601 will rotate and reset around the guide groove 6001 in the soil sampling frame 6, so as to facilitate the collection tube to be taken out of the soil sampling frame 6.

[0044] like Figure 2 、 Figure 8 and Figure 9 As shown, it also includes a rotary sampling mechanism, which includes a fixed baffle 1001, a fixed rack 1002, a downward pressure cam 501, a transmission gear 502 and an annular cutter 6012. The fixed baffle 1001 is fixedly connected to the vehicle body 1, and the fixed rack 1002 is fixedly connected to the fixed baffle 1001. The downward pressure cam 501 is rotatably connected to the lifting frame 5, and the downward pressure cam 501 is coaxially fixed with the transmission gear 502. The transmission gear 502 can engage with the fixed rack 1002. The annular cutter 6012 is fixedly connected to the bottom of the rotating blocking frame 601, and the annular cutter 6012 is located below the soil borrowing frame 6.

[0045] When the gear 502 is engaged with the fixed rack 1002, the lifting frame 501 is lowered, and the gear 502 is driven by the fixed rack 1002 to rotate. When the gear 502 drives the pressing cam 501 to rotate, the pressing cam 501 will push the connecting frame 602 to continue to slide downward along the rotating blocking frame 601, and at the same time drive the rotating blocking frame 601 to rotate, thereby driving the annular cutter 6012 to rotate. When the pressing cam 501 is out of contact with the connecting frame 602, the connecting frame 602 slides upward relative to the rotating blocking frame 601 under the push of the expansion spring 603, causing the rotating blocking frame 601 to rotate in the opposite direction and reset. As the transmission gear 502 and the pressing cam 501 continue to rotate, the rotating blocking frame 601 continues to rotate back and forth, thereby driving the annular cutter 6012 to rotate back and forth, so as to cut the soil at the sampling position for easy collection of samples.

[0046] like Figure 8 As shown, it also includes a buffer spring 5001 and a fixed guide rod 5011. A buffer spring 5001 is provided between the lifting frame 5 and the soil frame 6. The two ends of the buffer spring 5001 are respectively fixed to the lifting frame 5 and the soil frame 6. The lifting frame 5 is fixed with a fixed guide rod 5011, and the connecting frame 602 is slidably connected to the fixed guide rod 5011.

[0047] When the collecting tube is pushed into the soil frame 6, the lifting frame 5 continues to descend and will not stop moving. Before the collecting tube is completely sent into the soil frame 6, the soil frame 6 is difficult to descend with the lifting frame 5 due to the restriction of the collecting tube. At this time, the lifting frame 5 continues to descend, and the buffer spring 5001 between the lifting frame 5 and the soil frame 6 will be stretched. When the collecting tube is completely pushed into the soil frame 6, the soil frame 6 will quickly slide downward along the lifting frame 5 to reset. When the collecting tube in the soil frame 6 is pushed out, the lifting frame 5 continues to rise and will not stop moving. Under the obstruction of the collecting tube and the pushing arc plate 306, before the collecting tube is completely pushed out, the soil frame 6 will slide downward relative to the lifting frame 5 and compress the buffer spring 5001. When the collecting tube is completely pushed out and the pushing arc plate 306 moves to reset, the soil frame 6 will quickly slide upward along the lifting frame 5 to reset.

[0048] like Figure 10 As shown, it also includes a lifting plate 7, a guide rod 701 and a support spring 702. The guide rod 701 is fixedly connected to the vehicle body 1, and the lifting plate 7 is slidably connected to the outside of the guide rod 701. A support spring 702 is provided between the lifting plate 7 and the vehicle body 1. The support spring 702 is sleeved on the outside of the guide rod 701. The support spring 702 is used to push the lifting plate 7 to rise. When the lifting plate 7 rises to the highest point, it is flush with the top surface of the storage cylinder 207.

[0049] During the descending process of the soil borrowing frame 6, the supporting spring 702 pushes the lifting plate 7 upward to a height flush with the top surface of the storage cylinder 207. When the sliding push frame 204 and the arc-shaped push plate 206 push the collection cylinder to move into the soil borrowing frame 6, the lifting plate 7 provides support for the collection cylinder to prevent the collection cylinder from tipping down before entering the soil borrowing frame 6, ensuring that the collection cylinder can be accurately pushed into the soil borrowing frame 6. During the sampling process, after the soil borrowing frame 6 contacts the lifting plate 7, as the soil borrowing frame 6 continues to descend, the lifting plate 7 will be pushed down along the guide rod 701 and compress the supporting spring 702. When the lifting plate 7 contacts the fixed baffle 1001, the lifting plate 7 stops descending. At this time, the collection cylinder in the soil borrowing frame 6 just enters the specified height inside the soil. During the rising and resetting process of the soil borrowing frame 6, the lifting plate 7 is reset upward under the push of the supporting spring 702.

[0050] The soil sampling frame 6, the collecting tube and the receiving frame 405 that can contact the sample soil are all made of plastic, and the annular cutter 6012 is made of stainless steel to prevent the sampling tool itself from contaminating the soil during the sampling process.

[0051] The above is a detailed introduction to the present application. Specific examples are used herein 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 and core idea of ​​the present application. At the same time, for those skilled in the art, based on the idea of ​​the present application, there may 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 device, characterized in that: The invention comprises a vehicle body (1), a mounting plate (101), a driving motor (102), a driving gear (103), a driven gear (104), a belt transmission member (105), a reciprocating screw rod (106), a supporting top frame (107), a lifting frame (5), a soil taking frame (6), a collecting tube pushing mechanism and a collecting tube taking mechanism. The vehicle body (1) is fixed with a mounting plate (101), the mounting plate (101) is mounted with a driving motor (102), the vehicle body (1) is rotatably connected with a driving gear (103), the output shaft of the driving motor (102) is fixedly connected with the driving gear (103), the vehicle body (1) is rotatably connected with a driven gear (104), the driven gear (104) is meshed with the driving gear (103), and the vehicle body (1) A support top frame (107) is fixedly connected to the top of the vehicle body (1), and a reciprocating screw rod (106) is rotatably connected to the vehicle body (1). The top of the reciprocating screw rod (106) is rotatably connected to the support top frame (107). The driven gear (104) and the corresponding reciprocating screw rod (106) are connected through a belt transmission member (105). The reciprocating screw rod (106) is externally threadedly connected to a lifting frame (5). A soil sampling frame (6) is slidably connected to the lifting frame (5). A space for placing a collection tube is provided inside the soil sampling frame (6). A collection tube pushing mechanism is installed on the mounting plate (101). The collection tube pushing mechanism is used to send an empty collection tube into the soil sampling frame (6). The collection tube removing mechanism is installed in the vehicle body (1). The collection tube removing mechanism is used to push out the collection tube after sampling.

2. A soil sampling device according to claim 1, characterized in that: The collection tube pushing mechanism comprises a pushing gear ring (2), a pushing gear (201), a pushing torsion spring (202), a pushing cam (203), a sliding push frame (204), a return spring (205), an arc-shaped push plate (206) and a storage component, wherein a driven gear (104) is coaxially fixedly connected to the pushing gear ring (2), a pushing gear (201) is rotatably connected to the mounting plate (101), a pushing torsion spring (202) is provided between the pushing gear (201) and the mounting plate (101), the pushing gear (201) is connected to the pushing cam (203) via a one-way bearing, a sliding push frame (204) is slidably connected in the vehicle body (1), a return spring (205) is provided between the sliding push frame (204) and the vehicle body (1), an arc-shaped push plate (206) is fixedly connected to the sliding push frame (204), and the storage component is installed in the vehicle body (1), and the storage component is used for storing and pushing the collection tube upward.

3. A soil sampling device according to claim 2, characterized in that: The storage assembly comprises a storage cylinder (207), a support base plate (208), a support spring (209) and a U-shaped guide plate (210); the storage cylinder (207) is fixedly connected to the vehicle body (1); the support base plate (208) is slidably connected to the storage cylinder (207); a support spring (209) is provided between the support base plate (208) and the storage cylinder (207); a U-shaped guide plate (210) is fixedly connected to the top of the storage cylinder (207); and a through hole is provided at one end of the U-shaped guide plate (210) close to the arc-shaped push plate (206).

4. A soil sampling device according to claim 1, characterized in that: The collecting tube removal mechanism comprises a rotating shaft (3), an ejection gear ring (301), an ejection torsion spring (302), an ejection gear (303), an ejection cam (304), a sliding push rod (305), a fixing seat (3051), an ejection arc plate (306), an ejection spring (3061) and a receiving assembly. The other driven gear (104) is fixedly connected to the rotating shaft (3), and the ejection gear ring (301) is fixedly connected to the rotating shaft (3). The ejection gear (303) is rotatably connected in the vehicle body (1). An ejection gear (303) is provided between the ejection gear (303) and the vehicle body (1). The torsion spring (302) and the ejection gear (303) are connected to the ejection cam (304) through a one-way bearing. A sliding push rod (305) is slidably connected in the vehicle body (1). A fixed seat (3051) is fixed on the sliding push rod (305). The ejection cam (304) and the fixed seat (3051) are in surface contact. A ejection arc plate (306) is fixed on the sliding push rod (305). An ejection spring (3061) is provided between the ejection arc plate (306) and the vehicle body (1). A receiving assembly is installed in the vehicle body (1). The receiving assembly is used to receive the collection tube after sampling.

5. A soil sampling device according to claim 4, characterized in that: The receiving assembly comprises a storage frame (1003), an L-shaped slide bar (4), a sliding rack (401), a return spring (402), a positioning gear (403), a rotating receiving frame (404) and a receiving frame (405). The storage frame (1003) is fixedly connected to the vehicle body (1). The L-shaped slide bar (4) is slidably connected to the vehicle body (1). The L-shaped slide bar (4) is fixedly connected to the sliding push rod (305). The sliding rack (401) is slidably connected to the vehicle body (1). A return spring (402) is provided between the sliding rack (401) and the vehicle body (1), a positioning gear (403) is rotatably connected in the vehicle body (1), a rotating receiving frame (404) is rotatably connected in the storage frame (1003), the positioning gear (403) and the rotating receiving frame (404) are connected via a one-way bearing, a receiving frame (405) is fixed to the rotating receiving frame (404), and the collection tube after sampling can be pushed into the receiving frame (405).

6. A soil sampling device according to claim 1, characterized in that: The invention also includes a limiting component for limiting the movement of the collection tube, the limiting component including a guide groove (6001), a rotating blocking frame (601), an arc-shaped slide groove (6011), a connecting frame (602) and an opening spring (603), a guide groove (6001) is provided in the soil collecting frame (6), a rotating blocking frame (601) is rotatably connected in the guide groove (6001) of the soil collecting frame (6), a connecting frame (602) is slidably connected to the rotating blocking frame (601), an opening spring (603) is provided between the connecting frame (602) and the rotating blocking frame (601), an arc-shaped slide groove (6011) is provided on the rotating blocking frame (601), a hemispherical protrusion is fixed in the connecting frame (602), and the hemispherical protrusion in the connecting frame (602) is located in the arc-shaped slide groove (6011).

7. A soil sampling device according to claim 6, characterized in that: The invention also includes a rotary sampling mechanism, which includes a fixed baffle (1001), a fixed rack (1002), a pressing cam (501), a transmission gear (502) and an annular cutter (6012). The vehicle body (1) is fixedly connected with the fixed baffle (1001), the fixed rack (1002) is fixedly connected to the fixed baffle (1001), the lifting frame (5) is rotatably connected with the pressing cam (501), the pressing cam (501) is coaxially fixed with the transmission gear (502), and the transmission gear (502) can mesh with the fixed rack (1002). The bottom of the rotary blocking frame (601) is fixedly connected with the annular cutter (6012), and the annular cutter (6012) is located below the soil sampling frame (6).

8. The soil sampling device according to claim 6, characterized in that: It also includes a buffer spring (5001) and a fixed guide rod (5011). The buffer spring (5001) is provided between the lifting frame (5) and the soil-boring frame (6). The fixed guide rod (5011) is fixedly connected to the lifting frame (5). The connecting frame (602) is slidably connected to the fixed guide rod (5011).

9. The soil sampling device according to claim 1, characterized in that: The vehicle body (1) further comprises a lifting plate (7), a guide rod (701) and a supporting spring (702). The guide rod (701) is fixedly connected to the vehicle body (1). The lifting plate (7) is slidably connected to the outside of the guide rod (701). A supporting spring (702) is provided between the lifting plate (7) and the vehicle body (1). When the lifting plate (7) is raised to the highest point, it is flush with the top surface of the storage cylinder (207).

10. The soil sampling device according to claim 7, characterized in that: The parts of the soil sampling frame (6), the collecting tube and the receiving frame (405) that can come into contact with the sample soil are all made of plastic, and the annular cutter (6012) is made of stainless steel to prevent the sampling tool itself from contaminating the soil during the sampling process.

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