Deep soil sampling device for soil carbon sink survey

Abstract

The invention is applicable to the technical field of soil sampling, and provides a soil carbon sink survey deep soil sampling device, which comprises a sampling rod, an extension rod and a control rod, the extension rod is located between the sampling rod and the control rod, and the two ends of the extension rod are detachably connected with the sampling rod and the control rod through connecting assemblies; a sampling groove is formed in the sampling rod in the length direction, and a conical insertion head is slidably connected into the sampling groove. When soil sampling is sufficient, the reverse rotation driving mechanism is used for driving the first hidden blade and the second hidden blade to rotate reversely, the first hidden blade and the second hidden blade cut the soil in the sampling groove, the soil, located above the first hidden blade and the second hidden blade, in the sampling groove is completely sampled, and the control rod is pulled upwards to drive the first hidden blade and the second hidden blade to rotate. The sampling rod and the extension rod are pulled out from the underground, the first hidden blade and the second hidden blade support soil in the sampling groove in the pulling-out process, the soil is prevented from falling off from the sampling groove, and the integrity of soil sampling is further guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of soil sampling, and in particular relates to a deep soil sampling device for soil carbon sink investigation. Background Art

[0002] Soil carbon sink survey refers to the process of scientifically and accurately estimating and evaluating the soil carbon sink capacity. The methods of soil carbon sink survey include model method, soil carbon balance method and maximum method. In soil carbon sink survey, deep soil sampling is involved.

[0003] Most existing deep soil sampling devices are cylindrical, and an opening for collecting soil is provided at the lower end of the deep soil sampling device. The soil is collected into the deep soil sampling device by inserting the deep soil sampling device into the ground.

[0004] The existing deep soil sampling device still has some defects when in use. The soil from the surface to the specified depth will be collected in the cylindrical deep soil sampling device, and there is a problem of over-sampling. In addition, the lower end of the deep soil sampling device is open. When the deep soil sampling device is pulled out of the soil, the soil collected at the lower opening of the deep soil sampling device is likely to generate a separation force with the deep soil, which is likely to cause the soil collected at the lower opening of the deep soil sampling device to be broken, thereby making the integrity of the collected deep soil poor, and the collected soil is also likely to fall from the lower opening of the deep soil sampling device, thereby affecting the accuracy of deep soil sampling. Summary of the invention

[0005] The purpose of the embodiment of the present invention is to provide a deep soil sampling device for soil carbon sink investigation, aiming to solve the problems of over-sampling, poor sampling integrity and poor sampling accuracy when existing deep soil sampling devices are sampling.

[0006] The present invention is implemented as follows: a deep soil sampling device for soil carbon sink investigation comprises a sampling rod, and also comprises: an extension rod and a joystick, wherein the extension rod is located between the sampling rod and the joystick, and the two ends of the extension rod are detachably connected to the sampling rod and the joystick through a connecting assembly; a sampling groove is provided on the sampling rod along the length direction, and a conical insertion head is slidably connected in the sampling groove; a lifting mechanism is provided on the sampling rod, and under the guiding action of the sampling groove, the lifting mechanism drives the conical insertion head to move along the length direction of the sampling groove; an installation groove is provided in the sampling groove, and a hidden blade 1 and a hidden blade 2 are rotatably connected in the installation groove, and one end of the hidden blade 1 and the hidden blade 2 are rotatably connected. In the initial state, the hidden blade 1 and the hidden blade 2 are both hidden in the installation groove; a reverse driving mechanism is provided on the sampling rod, and the reverse driving mechanism is used to drive the hidden blade 1 and the hidden blade 2 to rotate in the opposite direction.

[0007] According to a further technical solution, a handle is fixed on the side wall of the control rod, and a knocking frame is fixed on one end of the control rod away from the sampling rod.

[0008] A further technical solution is that the connecting assembly includes an arc-shaped slot 1 arranged at one end of the sampling rod near the extension rod, and an arc-shaped plug block 1 fixed at one end of the extension rod near the sampling rod, and the arc-shaped plug block 1 cooperates with the arc-shaped slot 1; an arc-shaped slot 2 is arranged at the other end of the extension rod, and an arc-shaped plug block 2 is fixed at one end of the control rod near the extension rod, and the arc-shaped plug block 2 cooperates with the arc-shaped slot 2; connecting bolts are arranged on the sampling rod and the extension rod, and the arc-shaped plug block 1 and the arc-shaped plug block 2 are fixed in the arc-shaped slot 1 and the arc-shaped slot 2 by connecting bolts.

[0009] A further technical solution is that the lifting mechanism includes a threaded sleeve fixed on the upper end of the conical insertion head, and a screw rod rotatably connected to the sampling rod, and the screw rod is threadedly matched with the threaded sleeve; a connecting shaft 1 is rotatably provided on the extension rod, and a connecting shaft 2 and a driving shaft 1 are rotatably connected on the control rod, the connecting shaft 2 and the driving shaft 1 are connected through a bevel gear transmission module, and the two ends of the connecting shaft 1 are respectively plugged and fixedly connected to the screw rod and the connecting shaft 2 through a plug-in assembly 1.

[0010] A further technical solution is that the plug-in component 1 includes a socket 1 arranged at the upper end of the screw rod, and a plug 1 fixed at one end of a connecting shaft, and the plug 1 cooperates with the socket 1; a socket 2 is arranged at the other end of the connecting shaft, and a plug 2 is fixed at one end of the connecting shaft 2 close to the extension rod, and the plug 2 cooperates with the socket 2.

[0011] According to a further technical solution, the bevel gear transmission module comprises a transmission bevel gear 1 and a transmission bevel gear 2 respectively fixed on the connecting shaft 2 and the driving shaft 1, and the transmission bevel gear 1 and the transmission bevel gear 2 are meshed with each other.

[0012] A further technical solution is that the reversing drive mechanism includes a rotating sleeve and a rotating shaft rotatably connected on the sampling rod, the rotating shaft is movably arranged in the rotating sleeve, and the rotating sleeve and the rotating shaft are coaxially arranged; the extension rod is rotatably connected with a transmission sleeve 1 and a transmission shaft 1, the transmission shaft 1 is movably arranged in the transmission sleeve 1, and the transmission sleeve 1 and the transmission shaft are coaxially arranged; the control rod is rotatably connected with a transmission sleeve 2 and a transmission shaft 2, the transmission shaft 2 is movably arranged in the transmission sleeve 2, and the transmission sleeve 2 and the transmission shaft 2 are coaxially arranged; the end of the control rod away from the extension rod is rotatably connected with a drive shaft 2, the drive shaft 2 is transmission-connected with the transmission sleeve 2 and the transmission shaft 2 through a reverse transmission component, and when the drive shaft 2 is rotated, the reverse transmission component drives the transmission sleeve 2 and the transmission shaft 2 to reverse; the two ends of the transmission sleeve 1 are plug-in and fixedly connected with the rotating sleeve and the transmission sleeve 2 through a plug-in component 2, and the two ends of the transmission shaft 1 are plug-in and fixedly connected with the rotating shaft and the transmission shaft 2 through a plug-in component 2.

[0013] According to a further technical solution, the reverse transmission assembly includes a bevel gear three fixed on the drive shaft two, and a bevel gear two and a bevel gear one fixed on the transmission sleeve two and the transmission shaft two respectively.

[0014] A further technical solution is that the second plug-in component includes an arc-shaped plug-in groove 1 arranged at the upper end of the rotating sleeve, an arc-shaped plug-in block 1 is fixed to the end of the transmission sleeve 1 close to the sampling rod, and the arc-shaped plug-in block 1 cooperates with the arc-shaped plug-in groove 1, and an arc-shaped plug-in groove 2 is arranged at the other end of the transmission sleeve 1, and an arc-shaped plug-in block 2 is fixed to the end of the transmission sleeve 2 close to the extension rod, and the arc-shaped plug-in block 2 cooperates with the arc-shaped plug-in groove 2; a transmission plug-in block groove 1 is arranged on the rotating shaft, a transmission plug-in block 1 is fixed to the end of the transmission shaft 1 close to the sampling rod, and the transmission plug-in block 1 cooperates with the transmission plug-in block groove 1, and a transmission plug-in block groove 2 is arranged at the other end of the transmission shaft 1, and a transmission plug-in block 2 is fixed to the end of the transmission shaft 2 close to the extension rod, and the transmission plug-in block 2 cooperates with the transmission plug-in block groove 2.

[0015] A further technical solution is that a limiting component is provided on the sampling rod, a slide groove is provided in the limiting component, and a slider is slidably connected in the slide groove; a limiting rod is fixed to one end of the slider, a limiting groove is provided on the side wall of the rotating sleeve, the limiting rod cooperates with the limiting groove, a spring and a push rod are fixed to the other end of the slider, the spring is located in the slide groove, a push ring is fixed on the threaded sleeve, the push rod extends into the sampling groove and cooperates with the push ring.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The conical insertion head extends out of the lower end of the sampling rod and blocks the lower end of the sampling slot, thereby preventing the sampling slot from being filled with soil before reaching the specified sampling depth, and the conical insertion head facilitates the insertion of the sampling rod into the ground;

[0018] 2. The sampling rod, extension rod and control rod are connected in sequence through the connecting assembly. The appropriate number of extension rods can be selected according to the sampling depth, and the sampling rod, extension rod and control rod with detachable design are convenient for storage and transportation;

[0019] 3. When the conical insertion head reaches the sampling position, under the guidance of the sampling slot, the lifting mechanism drives the conical insertion head to move upward in the sampling slot, and then opens the lower end of the sampling slot. Continue to press down the sampling rod, extension rod and control rod to allow the soil to enter the sampling slot;

[0020] 4. When the soil sampling is sufficient, the reverse drive mechanism is used to drive the hidden blade one and the hidden blade two to rotate in the opposite direction. The hidden blade one and the hidden blade two cut the soil in the sampling groove, so that the soil above the hidden blade one and the hidden blade two in the sampling groove is completely sampled. The control lever is pulled upward to pull the sampling rod and the extension rod out of the ground. During the pulling out process, the hidden blade one and the hidden blade two support the soil in the sampling groove to prevent the soil from falling from the sampling groove, thereby further ensuring the integrity of the soil sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the structure of a deep soil sampling device for soil carbon sink investigation provided by the present invention;

[0022] Figure 2 The present invention provides Figure 1 Schematic diagram of the structure of the sampling rod;

[0023] Figure 3 The present invention provides Figure 2 Schematic diagram of the internal structure of the sampling rod;

[0024] Figure 4 The present invention provides Figure 3 A is a schematic diagram of the enlarged structure of the middle part;

[0025] Figure 5 The present invention provides Figure 4 Schematic diagram of the structure of the middle hidden blade and the second hidden blade;

[0026] Figure 6 The present invention provides Figure 4 Schematic diagram of the structure after the middle hidden blade and the two pairs of hidden blades cut the soil;

[0027] Figure 7 The present invention provides Figure 2 A schematic diagram of the enlarged structure of B;

[0028] Figure 8 The present invention provides Figure 1 Schematic diagram of the structure of the middle extension rod;

[0029] Fig. 9 The present invention provides Figure 8 Schematic diagram of the structure when looking up at the tilt angle;

[0030] Fig.10 The present invention provides Figure 8 Schematic diagram of the enlarged structure of C in the middle;

[0031] Fig.11 The present invention provides Fig. 9 Schematic diagram of the enlarged structure of D in the middle;

[0032] Fig.12 The present invention provides Figure 1 A schematic diagram of the structure of the connection between the middle control rod and the knock frame;

[0033] Fig.13 The present invention provides Figure 1 Schematic diagram of the structure of the middle control lever;

[0034] Fig.14 The present invention provides Fig.13 Schematic diagram of the structure when looking up at the tilt angle;

[0035] Fig.15 The present invention provides Fig.13 Schematic diagram of the enlarged structure of E;

[0036] Fig.16 The present invention provides Fig.14 Schematic diagram of the enlarged structure of F;

[0037] Fig.17 The present invention provides Figure 3 Schematic diagram of the enlarged structure of G in the figure.

[0038] In the drawings: sampling rod 101, extension rod 102, control rod 103, conical insertion head 104, handle 105, knocking frame 106, sampling slot 107, mounting slot 108, hidden blade 109, hidden blade 2 110, connecting component 2, arc slot 1 201, arc plug 1 202, arc slot 2 203, arc plug 2 204, connecting bolt 205, lifting mechanism 3, threaded sleeve 301, screw rod 302, connecting shaft 1 303, connecting shaft 2 304, driving shaft 1 305, transmission bevel gear 1 306, transmission bevel gear 2 307, plug component 1 4, socket 1 401, plug 1 402, socket 2 403, plug 2 404, reverse drive Mechanism 5, rotating sleeve 501, rotating shaft 502, transmission sleeve 1 503, transmission shaft 1 504, transmission sleeve 2 505, transmission shaft 2 506, drive shaft 2 507, reverse transmission component 6, bevel gear 1 601, bevel gear 2 602, bevel gear 3 603, plug-in component 2 7, arc-shaped plug-in slot 1 701, transmission plug-in block slot 1 702, arc-shaped plug-in block 1 703, transmission plug-in block 1 704, arc-shaped plug-in slot 2 705, transmission plug-in block slot 2 706, arc-shaped plug-in block 2 707, transmission plug-in block 2 708, limiting component 8, slide slot 801, slider 802, limiting rod 803, limiting slot 804, spring 805, push ring 806, push rod 807. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0040] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0041] like Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Fig.13 As shown, a deep soil sampling device for soil carbon sink investigation provided by an embodiment of the present invention includes a sampling rod 101, and also includes: an extension rod 102 and a control rod 103, wherein the extension rod 102 is located between the sampling rod 101 and the control rod 103, and the two ends of the extension rod 102 are detachably connected to the sampling rod 101 and the control rod 103 through a connecting assembly 2; a sampling groove 107 is provided on the sampling rod 101 along the length direction, and a conical insertion head 104 is slidably connected in the sampling groove 107; a lifting mechanism 3 is provided on the sampling rod 101, and under the guidance of the sampling groove 107, the lifting mechanism 3 drives the conical insertion head 104 to move along the length of the sampling groove 107 The sampling groove 107 is provided with a mounting groove 108, in which a hidden blade 109 and a hidden blade 2 110 are rotatably connected, and one end of the hidden blade 109 and the hidden blade 2 110 are rotatably connected. In the initial state, the hidden blade 109 and the hidden blade 2 110 are both hidden in the mounting groove 108; the sampling rod 101 is provided with a reverse driving mechanism 5, and the reverse driving mechanism 5 is used to drive the hidden blade 109 and the hidden blade 2 110 to rotate in the opposite direction; a handle 105 is fixed on the side wall of the control rod 103, and a knocking frame 106 is fixed on the end of the control rod 103 away from the sampling rod 101.

[0042] In the embodiment of the present invention, when in use, the conical insertion head 104 extends out of the lower end of the sampling rod 101 and blocks the lower end of the sampling slot 107. The sampling rod 101, the extension rod 102 and the control rod 103 are sequentially spliced ​​through the connecting assembly 2. The appropriate number of extension rods 102 can be selected according to the sampling depth. At least one extension rod 102 is used. The handle 105 is held and the conical insertion head 104 is placed in the sampling position. The hidden blade 109 and the hidden blade 2 110 are hidden in the installation groove 108, so as not to interfere with the conical insertion head 104 moving up and down in the sampling slot 107; then, by pressing the handle 105, the conical insertion head 104 can be inserted into the soil. When the soil is hard and the conical insertion head 104 cannot be inserted into the soil by pressing the handle 105, the conical insertion head 104 can be inserted into the soil by hammering the striking frame 106, thereby increasing the speed of the conical insertion head 104 inserting into the soil. After reaching the sampling position, under the guidance of the sampling groove 107, the lifting mechanism 3 drives the conical insertion head 104 to move upward in the sampling groove 107, and then opens the lower end of the sampling groove 107, and continues to press the sampling rod 101, the extension rod 102 and the control rod 103 downward, so that the soil can enter the sampling groove 107, and then the reverse driving mechanism 5 is used to drive the hidden blade 109 and the hidden blade 2 110 to rotate in the opposite direction, and the hidden blade 109 and the hidden blade 2 110 cut the soil in the sampling groove 107, so that the soil above the hidden blade 109 and the hidden blade 2 110 in the sampling groove 107 is completely sampled, and the control rod 103 is pulled upward to pull the sampling rod 101 and the extension rod 102 out of the ground. During the pulling out process, the hidden blade 109 and the hidden blade 2 110 support the soil in the sampling groove 107 to prevent the soil from falling from the sampling groove 107, thereby further ensuring the integrity of soil sampling.

[0043] like Figure 1 , Figure 2 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 , Fig.14 and Fig.16As shown, as a preferred embodiment of the present invention, the connecting assembly 2 includes an arc-shaped slot 201 arranged at one end of the sampling rod 101 close to the extension rod 102, and an arc-shaped plug block 202 fixed at one end of the extension rod 102 close to the sampling rod 101, and the arc-shaped plug block 202 cooperates with the arc-shaped slot 201; an arc-shaped slot 203 is arranged at the other end of the extension rod 102, and an arc-shaped plug block 204 is fixed at one end of the control rod 103 close to the extension rod 102, and the arc-shaped plug block 204 cooperates with the arc-shaped slot 203; the sampling rod 101 and the extension rod 102 are both provided with connecting bolts 205, and the arc-shaped plug block 1 202 and the arc-shaped plug block 2 204 are both fixed in the arc-shaped slot 201 and the arc-shaped slot 2 203 by the connecting bolts 205.

[0044] In the embodiment of the present invention, the arc-shaped insert block 202 at the lower end of the extension rod 102 is inserted into the arc-shaped slot 201 at the upper end of the sampling rod 101, and then the connecting bolt 205 is screwed on the sampling rod 101, and the connecting bolt 205 is pressed against the sampling rod 101, thereby fixing the arc-shaped insert block 202 in the arc-shaped slot 201, so that the extension rod 102 is fixed to the upper end of the sampling rod 101. The number of extension rods 102 is selected according to the depth of soil sampling. When the number of extension rods 102 increases, deeper soil can be sampled.

[0045] like Figure 1-Figure 16 As shown, as a preferred embodiment of the present invention, the lifting mechanism 3 includes a threaded sleeve 301 fixed on the upper end of the conical insertion head 104, and a screw rod 302 rotatably connected to the sampling rod 101, and the screw rod 302 is threadedly matched with the threaded sleeve 301; a connecting shaft 1 303 is rotatably provided on the extension rod 102, and a connecting shaft 2 304 and a driving shaft 1 305 are rotatably connected on the control rod 103, and the connecting shaft 2 304 and the driving shaft 1 305 are connected through a bevel gear transmission module, and the two ends of the connecting shaft 1 303 are respectively connected to the screw rod 302 and the connecting shaft 2 304 by plug-in assembly 1 4, and the bevel gear transmission module includes a transmission bevel gear 1 306 and a transmission bevel gear 2 307 respectively fixed on the connecting shaft 2 304 and the driving shaft 1 305, and the transmission bevel gear 1 306 and the transmission bevel gear 2 307 are meshed and matched.

[0046] In the embodiment of the present invention, a regular hexagonal groove that cooperates with an inner hexagonal wrench is provided at the end of the driving shaft 1 305, and the inner hexagonal wrench is used to drive the driving shaft 1 305 to rotate, and the driving shaft 1 305 drives the transmission bevel gear 2 307 to rotate, and the transmission bevel gear 2 307 drives the transmission bevel gear 1 306 to rotate, and the transmission bevel gear 1 306 drives the connecting shaft 2 304 to rotate, and the connecting shaft 2 304 drives the connecting shaft 1 303 to rotate, and the connecting shaft 1 303 drives the screw rod 302 to rotate, and the screw rod 302 drives the threaded sleeve 301 to move up and down through thread transmission, and the threaded sleeve 301 drives the conical insertion head 104 to move up and down, and the conical insertion head 104 can only move up and down in the sampling slot 107 and cannot rotate (the side wall of the conical insertion head 104 is provided with a guide protrusion, and the side wall of the sampling slot 107 is provided with a guide groove, and the guide protrusion is slidably connected in the guide groove to limit the rotation of the conical insertion head 104).

[0047] like Figure 1 , Figure 2 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 , Fig.14 and Fig.16 As shown, as a preferred embodiment of the present invention, the plug-in assembly 4 includes a socket 401 arranged at the upper end of the screw rod 302, and a plug 402 fixed at one end of the connecting shaft 303, and the plug 402 cooperates with the socket 401; a socket 403 is arranged at the other end of the connecting shaft 303, and a plug 404 is fixed at one end of the connecting shaft 304 close to the extension rod 102, and the plug 404 cooperates with the socket 403.

[0048] In the embodiment of the present invention, when the sampling rod 101 and the extension rod 102 are connected, the plug 1 402 at the lower end of the connecting shaft 1 303 is inserted into the socket 1 401 at the upper end of the screw rod 302, so that the rotating connecting shaft 1 303 can drive the screw rod 302 to rotate; when the extension rod 102 and the control rod 103 are connected, the plug 2 404 at the lower end of the connecting shaft 2 304 is inserted into the socket 2 403 at the upper end of the connecting shaft 1 303, and the rotating connecting shaft 2 304 can drive the connecting shaft 1 303 to rotate.

[0049] like Figure 1-Figure 16As shown, as a preferred embodiment of the present invention, the reverse driving mechanism 5 includes a rotating sleeve 501 and a rotating shaft 502 rotatably connected to the sampling rod 101, the rotating shaft 502 is movably arranged in the rotating sleeve 501, and the rotating sleeve 501 and the rotating shaft 502 are coaxially arranged; the extension rod 102 is rotatably connected with a transmission sleeve 1 503 and a transmission shaft 1 504, the transmission shaft 1 504 is movably arranged in the transmission sleeve 1 503, and the transmission sleeve 1 503 and the transmission shaft 1 504 are coaxially arranged; the control rod 103 is rotatably connected with a transmission sleeve 2 505 and a transmission shaft 2 506, the transmission shaft 2 506 is movably arranged in the transmission sleeve 2 505, and the transmission sleeve 2 505 and the transmission shaft 2 506 are coaxially arranged; the control rod 103 is away from One end of the extension rod 102 is rotatably connected to a second drive shaft 507, and the second drive shaft 507 is transmission-connected to the second transmission sleeve 505 and the second transmission shaft 506 through a reverse transmission component 6. When the second drive shaft 507 is rotated, the reverse transmission component 6 drives the second transmission sleeve 505 and the second transmission shaft 506 to reverse; the two ends of the transmission sleeve 1 503 are plug-in and fixedly connected to the rotating sleeve 501 and the second transmission sleeve 505 through a plug-in component 2 7, and the two ends of the transmission shaft 1 504 are plug-in and fixedly connected to the rotating shaft 502 and the second transmission shaft 506 through a plug-in component 2 7. The reverse transmission component 6 includes a bevel gear 3 603 fixed on the second drive shaft 507, and a bevel gear 2 602 and a bevel gear 1 601 respectively fixed on the second transmission sleeve 505 and the second transmission shaft 506.

[0050] In an embodiment of the present invention, a regular hexagonal groove that cooperates with an inner hexagonal wrench is provided at the end of the second driving shaft 507, and the inner hexagonal wrench is used to drive the second driving shaft 507 to rotate, and the second driving shaft 507 drives the bevel gear three 603 to rotate, and the bevel gear three 603 drives the bevel gear one 601 and the bevel gear two 602 to reverse, and the bevel gear one 601 and the bevel gear two 602 drive the transmission shaft two 506 and the transmission sleeve two 505 to reverse, and the transmission shaft two 506 and the transmission sleeve two 505 drive the transmission shaft one 504 and the transmission sleeve one 503 to reverse, and the transmission shaft one 504 and the transmission sleeve one 503 drive the rotating shaft 502 and the rotating sleeve 501 to reverse, and the rotating shaft 502 and the rotating sleeve 501 drive the hidden blade two 110 and the hidden blade one 109 to reverse.

[0051] like Figure 2 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 , Fig.13 , Fig.14 , Fig.15 and Fig.16As shown, as a preferred embodiment of the present invention, the plug-in assembly 2 7 includes an arc-shaped plug-in groove 1 701 set at the upper end of the rotating sleeve 501, and the end of the transmission sleeve 1 503 close to the sampling rod 101 is fixed with an arc-shaped plug-in block 1 703, and the arc-shaped plug-in block 1 703 cooperates with the arc-shaped plug-in groove 1 701, and the other end of the transmission sleeve 1 503 is provided with an arc-shaped plug-in groove 2 705, and the end of the transmission sleeve 2 505 close to the extension rod 102 is fixed with an arc-shaped plug-in block 2 707, and the arc-shaped plug-in block 2 707 cooperates with the arc-shaped plug-in groove 1 shaped plug-in slot 705 cooperates; a transmission plug-in block slot 702 is provided on the rotating shaft 502, a transmission plug-in block 704 is fixed to one end of the transmission shaft 504 close to the sampling rod 101, and the transmission plug-in block 704 cooperates with the transmission plug-in block slot 702, and a transmission plug-in block slot 2 706 is provided at the other end of the transmission shaft 504, and a transmission plug-in block 2 708 is fixed to one end of the transmission shaft 2 506 close to the extension rod 102, and the transmission plug-in block 2 708 cooperates with the transmission plug-in block slot 2 706.

[0052] In the embodiment of the present invention, when the sampling rod 101 and the extension rod 102 are connected, the arc-shaped plug-in block 703 at the lower end of the transmission sleeve 503 is inserted into the arc-shaped plug-in groove 701 at the upper end of the rotating sleeve 501, and the transmission plug-in block 704 at the lower end of the transmission shaft 504 is inserted into the transmission plug-in block groove 702 at the upper end of the rotating shaft 502. The rotating transmission sleeve 503 can drive the rotating sleeve 501 to rotate, and the rotating transmission shaft 504 can drive the rotating shaft 502 to rotate. Rotation; when the extension rod 102 and the control rod 103 are connected, the arc-shaped plug-in block 2 707 at the lower end of the transmission sleeve 2 505 is inserted into the arc-shaped plug-in groove 2 705 at the upper end of the transmission sleeve 1 503, and the transmission plug-in block 2 708 at the lower end of the transmission shaft 2 506 is inserted into the transmission plug-in block groove 2 706 at the upper end of the transmission shaft 1 504. The rotating transmission sleeve 2 505 can drive the transmission sleeve 1 503 to rotate, and the rotating transmission shaft 2 506 can drive the transmission shaft 1 504 to rotate.

[0053] like Figure 3 , Figure 5 and Fig.17 As shown, as a preferred embodiment of the present invention, a limiting component 8 is provided on the sampling rod 101, a slide groove 801 is provided in the limiting component 8, and a slider 802 is slidably connected in the slide groove 801; a limiting rod 803 is fixed to one end of the slider 802, a limiting groove 804 is provided on the side wall of the rotating sleeve 501, the limiting rod 803 cooperates with the limiting groove 804, a spring 805 and a pushing rod 807 are fixed to the other end of the slider 802, the spring 805 is located in the slide groove 801, a pushing ring 806 is fixed on the threaded sleeve 301, and the pushing rod 807 extends into the sampling groove 107 and cooperates with the pushing ring 806.

[0054] In the embodiment of the present invention, in the initial state, the hidden blade one 109 and the hidden blade two 110 are hidden in the installation groove 108, so as not to interfere with the tapered insertion head 104 moving up and down in the sampling groove 107, and the push ring 806 pushes the push rod 807, and the push rod 807 overcomes the pulling force of the spring 805 and pushes the slider 802, and the slider 802 drives the limiting rod 803 to be inserted into the limiting groove 804, thereby limiting the rotation of the rotating sleeve 501, thereby limiting the rotation of the hidden blade one 109 and the hidden blade two 110, and avoiding accidental touching and rotating of the hidden blade one 109 and the hidden blade two 110, thereby avoiding the hidden blade one 109 and the hidden blade two 110, and avoiding the hidden blade one 109 and the hidden blade two 110. 9 and hidden blade two 110 enter the sampling slot 107 and hinder the movement of the conical insertion head 104, thereby preventing the conical insertion head 104 from having rigid contact with the hidden blade one 109 and the hidden blade two 110 when moving upward, and avoiding damage to the hidden blade one 109 and the hidden blade two 110; when the threaded sleeve 301 drives the conical insertion head 104 and the pushing ring 806 to move upward, the pushing ring 806 does not push the pushing rod 807, and the spring 805 pulls the slider 802 away from the rotating sleeve 501, and the slider 802 drives the limiting rod 803 to disengage from the limiting slot 804, thereby releasing the rotation restriction of the rotating sleeve 501.

[0055] The above embodiment of the present invention provides a deep soil sampling device for soil carbon sink investigation. When in use, the conical insertion head 104 extends out of the lower end of the sampling rod 101 and blocks the lower end of the sampling slot 107. The sampling rod 101, the extension rod 102 and the control rod 103 are sequentially spliced ​​through the connecting assembly 2. The number of extension rods 102 can be selected appropriately according to the sampling depth. At least one extension rod 102 is used. The handle 105 is held and the conical insertion head 104 is placed in the sampling position. The hidden blade 109 and the hidden blade 2 110 are hidden in the installation slot 108, so as not to interfere with the conical insertion head 104 moving up and down in the sampling slot 107. Then, by pressing the handle 105, the conical insertion head 104 can be inserted into the sampling slot 107. Insert into the soil. When the soil is hard and the conical insertion head 104 cannot be inserted into the soil by pressing the handle 105, the conical insertion head 104 can be inserted into the soil by hammering the striking frame 106, thereby increasing the speed of the conical insertion head 104 inserting into the soil. When the conical insertion head 104 penetrates into the sampling position, under the guidance of the sampling groove 107, the driving shaft 1 305 is rotated, and the driving shaft 1 305 drives the transmission bevel gear 2 307 to rotate, and the transmission bevel gear 2 307 drives the transmission bevel gear 1 306 to rotate, and the transmission bevel gear 1 306 drives the connecting shaft 2 304 to rotate, and the connecting shaft 2 304 drives the connecting shaft 1 303 to rotate, and the connecting shaft 1 303 drives the screw rod 302 to rotate, and the screw rod 302 drives the threaded sleeve 301 to move upward through thread transmission, and the threaded sleeve 301 drives the conical insertion head 104 to move upward, thereby opening the lower end of the sampling slot 107, and continuing to press the sampling rod 101, the extension rod 102 and the control rod 103 downward, so that the soil can enter the sampling slot 107, and then the driving shaft 2 507 is rotated, and the driving shaft 2 507 drives the bevel gear 3 603 to rotate, and the bevel gear 3 603 drives the bevel gear 1 601 and the bevel gear 2 602 to reverse, and the bevel gear 1 601 and the bevel gear 2 602 drive the transmission shaft 2 506 and the transmission sleeve 2 505 to reverse, and the transmission shaft 2 506 and the transmission sleeve 2 505 drive the transmission shaft 1 504 and the transmission sleeve 1 503 to reverse, and the transmission The shaft 1 504 and the transmission sleeve 1 503 drive the rotating shaft 502 and the rotating sleeve 501 to reverse, and the rotating shaft 502 and the rotating sleeve 501 drive the hidden blade 2 110 and the hidden blade 1 109 to reverse, and the hidden blade 1 109 and the hidden blade 2 110 cut the soil in the sampling groove 107, so that the soil in the sampling groove 107 above the hidden blade 109 and the hidden blade 2 110 is completely sampled, and the control rod 103 is pulled upward to pull the sampling rod 101 and the extension rod 102 out of the ground. During the pulling out process, the hidden blade 109 and the hidden blade 2 110 support the soil in the sampling groove 107 to prevent the soil from falling from the sampling groove 107, thereby further ensuring the integrity of the soil sampling.

[0056] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A deep soil sampling device for soil carbon sink investigation, comprising a sampling rod, characterized in that: Also includes: An extension rod and a control rod, wherein the extension rod is located between the sampling rod and the control rod, and both ends of the extension rod are detachably connected to the sampling rod and the control rod through a connecting assembly; The sampling rod is provided with a sampling groove along the length direction, and a conical insertion head is slidably connected in the sampling groove; The sampling rod is provided with a lifting mechanism, and under the guidance of the sampling slot, the lifting mechanism drives the conical insertion head to move along the length direction of the sampling slot; The sampling slot is provided with a mounting slot, in which a hidden blade 1 and a hidden blade 2 are rotatably connected, and one end of the hidden blade 1 and the hidden blade 2 are rotatably connected. In an initial state, the hidden blade 1 and the hidden blade 2 are both hidden in the mounting slot; The sampling rod is provided with a reverse driving mechanism, and the reverse driving mechanism is used to drive the hidden blade 1 and the hidden blade 2 to rotate in the opposite direction.

2. The deep soil sampling device for soil carbon sink investigation according to claim 1 is characterized in that: A handle is fixed on the side wall of the control rod, and a knocking frame is fixed on one end of the control rod away from the sampling rod.

3. The deep soil sampling device for soil carbon sink investigation according to claim 1 is characterized in that: The connecting assembly comprises an arc-shaped slot 1 arranged at one end of the sampling rod close to the extension rod, and an arc-shaped plug-in block 1 fixed at one end of the extension rod close to the sampling rod, wherein the arc-shaped plug-in block 1 cooperates with the arc-shaped slot 1; The other end of the extension rod is provided with a second arc-shaped slot, and the end of the control rod close to the extension rod is fixed with a second arc-shaped plug-in block, and the second arc-shaped plug-in block cooperates with the second arc-shaped slot; The sampling rod and the extension rod are both provided with connecting bolts, and the arc-shaped insert block 1 and the arc-shaped insert block 2 are both fixed in the arc-shaped slot 1 and the arc-shaped slot 2 through the connecting bolts.

4. The deep soil sampling device for soil carbon sink investigation according to claim 1, characterized in that: The lifting mechanism comprises a threaded sleeve fixed on the upper end of the conical insertion head, and a screw rod rotatably connected to the sampling rod, and the screw rod is threadably matched with the threaded sleeve; A connecting shaft 1 is rotatably provided on the extension rod, and a connecting shaft 2 and a driving shaft 1 are rotatably connected on the control rod. The connecting shaft 2 and the driving shaft 1 are connected through a bevel gear transmission module, and the two ends of the connecting shaft 1 are respectively plugged and fixedly connected with the screw rod and the connecting shaft 2 through a plug-in component 1.

5. The deep soil sampling device for soil carbon sink investigation according to claim 4 is characterized in that: The plug-in assembly 1 includes a socket 1 arranged at the upper end of the screw rod, and a plug 1 fixed at one end of the connecting shaft 1, and the plug 1 cooperates with the socket 1; The other end of the connecting shaft 1 is provided with a second socket, and the end of the connecting shaft 2 close to the extension rod is fixed with a second plug, and the second plug is matched with the second socket.

6. The deep soil sampling device for soil carbon sink investigation according to claim 4 is characterized in that: The bevel gear transmission module comprises a transmission bevel gear 1 and a transmission bevel gear 2 which are respectively fixed on the connecting shaft 2 and the driving shaft 1, and the transmission bevel gear 1 and the transmission bevel gear 2 are meshed and matched.

7. The deep soil sampling device for soil carbon sink investigation according to claim 4 is characterized in that: The reverse drive mechanism comprises a rotating sleeve and a rotating shaft rotatably connected to the sampling rod, the rotating shaft is movably arranged in the rotating sleeve, and the rotating sleeve and the rotating shaft are coaxially arranged; The extension rod is rotatably connected with a transmission sleeve 1 and a transmission shaft 1, the transmission shaft 1 is movably arranged in the transmission sleeve 1, and the transmission sleeve 1 and the transmission shaft are arranged coaxially; The control rod is rotatably connected with a transmission sleeve 2 and a transmission shaft 2, the transmission shaft 2 is movably arranged in the transmission sleeve 2, and the transmission sleeve 2 and the transmission shaft 2 are coaxially arranged; The end of the control rod away from the extension rod is rotatably connected to the second drive shaft, and the second drive shaft is connected to the second drive sleeve and the second drive shaft through a reverse transmission component. When the second drive shaft is rotated, the reverse transmission component drives the second drive sleeve and the second drive shaft to reverse. The two ends of the transmission sleeve 1 are plug-in fixedly connected with the rotating sleeve and the transmission sleeve 2 through the plug-in assembly 2, and the two ends of the transmission shaft 1 are plug-in fixedly connected with the rotating shaft and the transmission shaft 2 through the plug-in assembly 2.

8. The deep soil sampling device for soil carbon sink investigation according to claim 7, characterized in that: The reverse transmission assembly comprises a bevel gear three fixed on the driving shaft two, and a bevel gear two and a bevel gear one respectively fixed on the transmission sleeve two and the transmission shaft two.

9. The deep soil sampling device for soil carbon sink investigation according to claim 7, characterized in that: The plug-in assembly 2 includes an arc-shaped plug-in groove 1 arranged at the upper end of the rotating sleeve, an arc-shaped plug-in block 1 is fixed to one end of the transmission sleeve 1 close to the sampling rod, and the arc-shaped plug-in block 1 cooperates with the arc-shaped plug-in groove 1, and an arc-shaped plug-in groove 2 is arranged at the other end of the transmission sleeve 1, and an arc-shaped plug-in block 2 is fixed to one end of the transmission sleeve 2 close to the extension rod, and the arc-shaped plug-in block 2 cooperates with the arc-shaped plug-in groove 2; A transmission plug-in block groove 1 is provided on the rotating shaft, a transmission plug-in block 1 is fixed to one end of the transmission shaft 1 close to the sampling rod, and the transmission plug-in block 1 cooperates with the transmission plug-in block groove 1, and a transmission plug-in block groove 2 is provided on the other end of the transmission shaft 1, a transmission plug-in block 2 is fixed to one end of the transmission shaft 2 close to the extension rod, and the transmission plug-in block 2 cooperates with the transmission plug-in block groove 2.

10. The deep soil sampling device for soil carbon sink investigation according to claim 7, characterized in that: The sampling rod is provided with a limiting component, the limiting component is provided with a slide groove, and the slide groove is slidably connected with a slider; A limiting rod is fixed at one end of the slider, a limiting groove is provided on the side wall of the rotating sleeve, the limiting rod cooperates with the limiting groove, a spring and a pushing rod are fixed at the other end of the slider, the spring is located in the sliding groove, a pushing ring is fixed on the threaded sleeve, the pushing rod extends into the sampling groove and cooperates with the pushing ring.

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