Plateau frozen soil sample collecting device

Abstract

The invention relates to the technical field of frozen soil collection, and discloses a plateau frozen soil sample collection device which comprises a mounting table, a sampling outer cylinder is arranged below the mounting table, a heating cavity is formed in the sampling outer cylinder, and electric heating rods are fixedly mounted on the two sides of the top of the sampling outer cylinder; and the heating end of the electric heating rod extends into the heating cavity. When frozen soil is collected and sampled through rotation of the sampling outer cylinder and the sampling inner cylinder, an anti-freezing solution in the heating cavity can be heated through the electric heating rod, and heat is dissipated to the outside through the sampling outer cylinder, so that ice crystals in the frozen soil outside the sampling outer cylinder are melted, and the sampling cylinder can quickly penetrate through a frozen soil layer; and meanwhile, the anti-freezing solution in the water storage tank is circularly pumped into the cooling cavity in the sampling inner barrel to cool the sampling inner barrel, so that the situation that heat is generated due to friction between the sampling inner barrel and the sampled frozen soil is reduced, the original state of the frozen soil sample can be kept, and the sampling accuracy is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of frozen soil collection, and more specifically to a device for collecting frozen soil samples on a plateau. Background Art

[0002] Plateau permafrost refers to frozen soil distributed in plateau areas. This kind of soil will produce frost heave in winter, causing the soil surface to bulge, and will melt in summer, causing the soil surface to sink. This repetitive process makes the ground uneven. Due to the cold climate in the plateau area, the soil is frozen all year round, which poses a great challenge to the collection of soil samples. Through the sampling of plateau permafrost, we can obtain data on the physical, chemical and biological properties of permafrost for scientific research. The traditional soil sampling method is to rotate the sampling barrel deep underground for sampling. If the permafrost is relatively hard, the sampling barrel is often difficult to penetrate the permafrost layer. In the sampling process, due to the rotation of the sampling barrel, the friction between its inner wall and the sampled permafrost will generate heat, causing some permafrost samples to melt, thermally damaged or change their original properties, resulting in the inability to meet the needs of scientific research, which needs to be improved. Summary of the invention

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides a plateau frozen soil sample collection device to solve the problems existing in the above-mentioned background technology.

[0004] The present invention provides the following technical scheme: a plateau frozen soil sampling device, comprising a mounting platform, a sampling outer cylinder is arranged below the mounting platform, a heating chamber is provided inside the sampling outer cylinder, electric heating rods are fixedly installed on both sides of the top of the sampling outer cylinder, the heating ends of the electric heating rods extend into the interior of the heating chamber, a sampling inner cylinder is fixedly sleeved in the inner cavity of the sampling outer cylinder, a cooling chamber is provided inside the sampling inner cylinder, a push plate is movably sleeved above the inner cavity of the cooling chamber, a rotating plate is movably sleeved below the inside of the mounting platform, fixed brackets are fixedly connected to both sides of the bottom of the rotating plate, there are two fixed brackets, the bottom ends of the two fixed brackets are fixedly connected to the tops of both sides of the sampling outer cylinder, and the middle of the bottom of the rotating plate A water tank is fixedly connected, and antifreeze is provided inside the water tank and the heating chamber. A No. 1 conduit is fixedly connected to the bottom of the water tank, and a solenoid valve is installed on the No. 1 conduit. A small water pump is fixedly installed on the right side of the bottom of the water tank, one end of the No. 1 conduit is fixedly installed on the input end of the small water pump, and a No. 2 conduit is fixedly connected to the output end of the small water pump, and the bottom end of the No. 2 conduit extends to the upper right side of the cooling chamber. A return pipe assembly is fixedly installed on the left side of the bottom of the water tank, and a one-way drain valve is installed on the return pipe assembly, the top of the one-way drain valve is the drain end, and the bottom of the one-way drain valve is the water inlet end, and the bottom end of the return pipe assembly extends to the lower left side of the cooling chamber.

[0005] Furthermore, a No. 2 reduction motor is fixedly mounted in the middle of the top of the mounting platform, and an output end of the No. 2 reduction motor extends to the interior of the mounting platform and is fixedly connected to the middle of the top of the rotating plate.

[0006] By adopting the above technical solution, through the setting of the No. 2 reduction motor in the solution, it is easy to drive the rotating plate to rotate, and the rotating plate drives the sampling outer cylinder and the sampling inner cylinder to rotate through the fixed frame, thereby facilitating the collection and sampling of frozen soil.

[0007] Furthermore, a plurality of balls are rotatably embedded in the outer wall of the rotating plate, an annular rolling groove is provided on the inner wall of the mounting platform, and one side of the plurality of balls is rollingly arranged inside the annular rolling groove.

[0008] By adopting the above-mentioned technical scheme, through the mutual cooperation of the rotating plate, balls, mounting platform and annular rolling groove in the scheme, when the rotating plate rotates, multiple balls can be driven to roll inside the annular rolling groove. The rotation of multiple balls inside the annular rolling groove facilitates maintaining the stability of the rotating plate during rotation.

[0009] Furthermore, cooling ports are opened below both sides of the water tank, a heat conducting plate is fixedly connected to the interior of the cooling port, a semiconductor refrigerator is arranged inside the cooling port, the cooling end of the semiconductor refrigerator is fixedly installed on one side of the heat conducting plate, and a fin heat sink is fixedly installed at the heat dissipation end of the semiconductor refrigerator.

[0010] By adopting the above technical scheme, through the mutual cooperation of the cooling port, heat conducting plate, semiconductor refrigerator and fin heat sink in the scheme, the heat conducting plate and semiconductor refrigerator are used to cool the antifreeze liquid inside the water tank so that the antifreeze liquid can be kept at a low temperature. Through the setting of the fin heat sink, the heat dissipation end of the semiconductor refrigerator can be cooled, thereby reducing the temperature of the heat dissipation end of the semiconductor refrigerator when it is working.

[0011] Furthermore, a water inlet pipe is fixedly installed on the upper left side of the water tank, and a drain pipe is fixedly installed on the lower right side of the water tank, and water valves are installed on both the water inlet pipe and the drain pipe.

[0012] By adopting the above technical solution, through the arrangement of the water inlet pipe, the drain pipe and the water valve in the solution, it is convenient to discharge the antifreeze liquid inside the water storage tank or to replenish the antifreeze liquid.

[0013] Furthermore, a mounting cover is fixedly installed in the middle of the top of the sampling outer cylinder, a screw rod is provided inside the mounting cover, the top end of the screw rod is rotatably connected to the top of the inner cavity of the mounting cover, the bottom end of the screw rod is rotatably connected to the middle of the top of the sampling outer cylinder, a slider is slidably sleeved on the upper part of the inside of the mounting cover, and the internal thread of the slider is sleeved on the outer wall of the screw rod.

[0014] By adopting the above technical solution, the setting of the mounting cover in the solution facilitates the protection of the screw rod and the slider inside the mounting cover, and the setting of the screw rod facilitates the driving slider to slide inside the mounting cover.

[0015] Furthermore, connecting rods are provided on both sides of the interior of the mounting cover, and there are two connecting rods. The top ends of the two connecting rods are fixedly connected to the two sides of the bottom of the slider, and the lower parts of the outer walls of the two connecting rods are movably sleeved on the top of the sampling outer cylinder. The bottom ends of the connecting rods extend to the inner cavity of the sampling inner cylinder and are fixedly connected to the top of the push plate.

[0016] By adopting the above-mentioned technical scheme, through the mutual cooperation of the slider and the connecting rod push plate in the scheme, the sliding of the slider is utilized to facilitate driving the connecting rod to move, and one end of the connecting rod pushes the push plate to move in the inner cavity of the sampling inner cylinder, so that the collected and sampled frozen soil is pushed out from the inside of the sampling inner cylinder, making it convenient for the staff to collect the collected and sampled frozen soil.

[0017] Furthermore, a reduction motor No. 1 is fixedly installed on the upper right side of the inner wall of the mounting cover, a worm is fixedly installed on the output end of the reduction motor No. 1, one end of the worm is rotatably connected to the upper left side of the inner wall of the mounting cover, a worm wheel is fixedly sleeved on the upper part of the outer wall of the screw rod, the worm wheel is located on the back side of the worm, and the worm is meshed with the worm wheel.

[0018] By adopting the above technical solution, through the cooperation of the No. 1 reduction motor, the worm and the worm wheel in the solution, it is convenient to provide power to the screw rod, thereby driving the screw rod to rotate.

[0019] Furthermore, a No. 1 power box is fixedly installed on the left side of the top of the mounting platform, and a No. 1 storage battery is arranged inside the No. 1 power box. A No. 2 power box is fixedly installed on one side of the bottom of the rotating plate, and a No. 2 storage battery is arranged inside the No. 2 power box.

[0020] By adopting the above technical solution, the arrangement of No. 1 battery and No. 2 battery in the solution facilitates power supply for the device.

[0021] Furthermore, holding frames are fixedly connected to both sides of the mounting platform, and an anti-slip leather cover is fixedly sleeved on the outer wall of the holding frame.

[0022] By adopting the above technical solution, the holding frame is provided in the solution, which makes it convenient for workers to hold the device for work or carry, and the non-slip leather cover is provided to increase the anti-slip property when the workers hold the holding frame.

[0023] Technical effects and advantages of the present invention: 1. When the sampling outer cylinder and the sampling inner cylinder are rotated to collect and sample frozen soil, the present invention can heat the antifreeze liquid in the heating chamber through the electric heating rod, and the heat is dissipated to the outside through the sampling outer cylinder, thereby melting the ice crystals in the frozen soil outside the sampling outer cylinder, which helps to reduce the friction between the sampling outer cylinder and the frozen soil, making the sampling process smoother and reducing the sampling difficulty, so that the sampling cylinder can quickly penetrate the frozen soil layer. At the same time, through the cooperation of the No. 1 guide tube, the solenoid valve, the small water pump, the No. 2 guide tube, the return pipe assembly and the one-way drain valve, it is convenient to circulate the antifreeze liquid in the water storage tank into the cooling chamber inside the sampling inner cylinder, cool the sampling inner cylinder, thereby reducing the heat generated by friction between the sampling inner cylinder and the sampled frozen soil, and maintaining the original state of the frozen soil sample to ensure the accuracy of sampling.

[0024] 2. The present invention adopts the setting of the holding frame to facilitate the staff to operate the device, and adopts the cooperation of the second reduction motor, the rotating plate, the ball, the annular rolling groove and the fixing frame to facilitate the driving of the sampling outer cylinder and the sampling inner cylinder to rotate, and utilizes the rotation of the sampling outer cylinder and the sampling inner cylinder to penetrate deep into the ground, thereby facilitating the sampling of frozen soil.

[0025] 3. The present invention uses the cooperation of the mounting cover, the No. 1 reduction motor, the worm, the worm wheel and the lead screw to facilitate driving the slider and the connecting rod to move, and the bottom end of the connecting rod pushes the push plate to move in the inner cavity of the sampling inner cylinder, thereby pushing the sampled frozen soil out of the sampling inner cylinder, making it convenient for the staff to collect the sampled frozen soil. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0027] Figure 2 It is a schematic cross-sectional view of the overall structure of the present invention.

[0028] Figure 3 It is a schematic cross-sectional view of the mounting platform and the rotating plate of the present invention when viewed from above.

[0029] Figure 4 It is a schematic cross-sectional view of the water storage tank structure of the present invention.

[0030] Figure 5 It is a schematic cross-sectional view of the sampling outer cylinder and the sampling inner cylinder structure of the present invention.

[0031] Figure 6 It is a schematic cross-sectional view of the mounting cover structure of the present invention.

[0032] The accompanying drawings are marked as follows: 1. mounting table; 2. sampling outer cylinder; 21. heating chamber; 22. electric heating rod; 3. sampling inner cylinder; 31. cooling chamber; 4. water storage tank; 41. cooling port; 411. heat conducting plate; 412. semiconductor refrigerator; 413. finned heat sink; 414. water inlet pipe; 415. drain pipe; 42. No. 1 conduit; 43. solenoid valve; 44. water pump; 45. No. 2 conduit; 46. return pipe assembly; 47. one-way drain valve; 5. mounting cover; 51. No. 1 reduction motor; 52. worm; 53. worm gear; 54. lead screw; 55. slider; 56. connecting rod; 57. push plate; 6. No. 2 reduction motor; 7. rotating plate; 71. ball; 8. annular rolling groove; 9. fixing frame; 10. No. 1 power box; 11. No. 2 power box; 12. holding frame. DETAILED DESCRIPTION

[0033] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative. The plateau frozen soil sample collection device involved in the present invention is not limited to the various structures recorded in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0034] Embodiment 1: like Figure 1-6As shown, a plateau frozen soil sampling device comprises a mounting platform 1, a sampling outer cylinder 2 is arranged at the bottom of the mounting platform 1, a mounting cover 5 is fixedly installed in the middle of the top of the sampling outer cylinder 2, a No. 1 reduction motor 51 is fixedly installed on the upper right side of the inner wall of the mounting cover 5, a heating chamber 21 is provided inside the sampling outer cylinder 2, electric heating rods 22 are fixedly installed on both sides of the top of the sampling outer cylinder 2, the heating end of the electric heating rod 22 extends to the inside of the heating chamber 21, a sampling inner cylinder 3 is fixedly sleeved in the inner cavity of the sampling outer cylinder 2, a cooling chamber 31 is provided inside the sampling inner cylinder 3, a rotating plate 7 is movably sleeved at the bottom of the mounting platform 1, a No. 2 power supply box 11 is fixedly installed on one side of the bottom of the rotating plate 7, a No. 2 storage battery is arranged inside the No. 2 power supply box 11, and a No. 2 storage battery is fixedly connected in the middle of the bottom of the rotating plate 7. The water tank 4, the water tank 4 and the heating chamber 21 are both provided with antifreeze liquid, the bottom of the water tank 4 is fixedly connected with a No. 1 conduit 42, and a solenoid valve 43 is installed on the No. 1 conduit 42, a small water pump 44 is fixedly installed on the right side of the bottom of the water tank 4, one end of the No. 1 conduit 42 is fixedly installed on the input end of the small water pump 44, and the output end of the small water pump 44 is fixedly connected with a No. 2 conduit 45, and the bottom end of the No. 2 conduit 45 extends to the upper right side of the cooling chamber 31, and a return pipe assembly 46 is fixedly installed on the left side of the bottom of the water tank 4, and a one-way drain valve 47 is installed on the return pipe assembly 46, the top of the one-way drain valve 47 is the drain end, the bottom of the one-way drain valve 47 is the water inlet end, and the bottom end of the return pipe assembly 46 extends to the lower left side of the cooling chamber 31.

[0035] In this embodiment, a temperature controller, a No. 1 motor controller, a solenoid valve controller, a water pump controller and a refrigerator controller are installed on the front of the mounting cover 5. The temperature controller, the No. 1 motor controller, the solenoid valve controller, the water pump controller, the refrigerator controller, the electric heating rod 22, the semiconductor refrigerator 412, the solenoid valve 43, the small water pump 44 and the No. 1 reduction motor 51 are all electrically connected to the No. 2 battery, and the No. 2 battery is used to power these devices. The operation of the electric heating rod 22 can be controlled by the temperature controller, the operation of the solenoid valve 43 can be controlled by the solenoid valve controller, the operation of the small water pump 44 can be controlled by the setting of the water pump controller, and the operation of the semiconductor refrigerator 412 can be controlled by the setting of the refrigerator controller. For example, before sampling the frozen soil through the sampling outer cylinder 2 and the sampling inner cylinder 3, the electric heating rod 22 is controlled to be heated to a specified temperature through the temperature controller, and the heating end of the electric heating rod 22 is used to heat the antifreeze liquid inside the heating chamber 21. The heating chamber 21 is opened close to the outer wall of the heating chamber 21, so as to The antifreeze can be heated to quickly transfer heat to the outer wall of the sampling outer cylinder 2, so that the outer wall of the sampling outer cylinder 2 can melt the ice crystals in the frozen soil, which helps to reduce the friction between the sampling outer cylinder 2 and the frozen soil, making the sampling process smoother. At this time, the staff opens the solenoid valve 43 and the small water pump 44 through the solenoid valve controller and the water pump controller, and the antifreeze inside the water storage tank 4 is pumped into the cooling chamber 31 inside the sampling inner cylinder 3 through the cooperation of the No. 1 conduit 42, the small water pump 44, and the No. 2 conduit 45, so as to cool the sampling inner cylinder 3. The temperature is lowered to reduce the heat generated by friction between the sampling inner tube 3 and the sampled frozen soil, so as to maintain the original state of the frozen soil sample and ensure the accuracy of sampling. When the antifreeze liquid fills the cooling chamber 31, the antifreeze liquid can be discharged back into the water storage tank 4 through the return pipe assembly 46 and the one-way drain valve 47, so that the antifreeze liquid can be recycled. The one-way drain valve 47 has a one-way drainage function, thereby preventing the antifreeze liquid inside the water storage tank 4 from flowing back into the cooling chamber 31 through the return pipe assembly 46.

[0036] Embodiment 2: like Figure 1-6 As shown, cooling ports 41 are opened at the lower parts of both sides of the water tank 4, and heat conducting plates 411 are fixedly connected to the interior of the cooling ports 41. A semiconductor refrigerator 412 is arranged inside the cooling ports 41, and a cooling end of the semiconductor refrigerator 412 is fixedly mounted on one side of the heat conducting plate 411, and a finned heat sink 413 is fixedly mounted on the heat dissipation end of the semiconductor refrigerator 412. A water inlet pipe 414 is fixedly mounted on the upper part of the left side of the water tank 4, and a drain pipe 415 is fixedly mounted on the lower part of the right side of the water tank 4, and water valves are installed on both the water inlet pipe 414 and the drain pipe 415.

[0037] In this embodiment, the cooling end of the semiconductor refrigerator 412 can be used to cool the antifreeze liquid inside the water tank 4 through the heat conducting plate 411, so that the antifreeze liquid can be kept in a low temperature state and circulated into the cooling chamber 31 to cool the sampling inner cylinder 3. The setting of the finned heat sink 413 facilitates the cooling of the heat dissipation end of the semiconductor refrigerator 412, thereby reducing the temperature of the heat dissipation end of the semiconductor refrigerator 412 when it is working. The setting of the water inlet pipe 414, the drain pipe 415 and the water valve facilitates the discharge of the antifreeze liquid inside the water tank 4 or the replenishment of the antifreeze liquid.

[0038] Embodiment three: like Figure 1-6 As shown, a No. 1 power box 10 is fixedly installed on the left side of the top of the mounting platform 1, and a No. 1 storage battery is arranged inside the No. 1 power box 10. Fixed frames 9 are fixedly connected to the two sides of the bottom of the rotating plate 7. There are two fixed frames 9, and the bottom ends of the two fixed frames 9 are fixedly connected to the tops of the two sides of the sampling outer cylinder 2. A No. 2 reduction motor 6 is fixedly installed in the middle of the top of the mounting platform 1. The output end of the No. 2 reduction motor 6 extends to the inside of the mounting platform 1 and is fixedly connected to the middle of the top of the rotating plate 7. A plurality of ball bearings 71 are rotatably inlaid on the outer wall of the rotating plate 7. An annular rolling groove 8 is opened on the inner wall of the mounting platform 1, and one side of the plurality of ball bearings 71 are all rollingly arranged inside the annular rolling groove 8. Holding frames 12 are fixedly connected to the two sides of the mounting platform 1, and the outer wall of the holding frame 12 is fixedly sleeved with a non-slip leather cover.

[0039] In this embodiment, a No. 2 motor controller is installed on the right side of the top of the mounting platform 1. The No. 2 motor controller is set to control the operation of the No. 2 reduction motor 6, and the No. 2 battery is used to power the No. 2 motor controller and the No. 2 reduction motor 6. The holding frame 12 is set to facilitate the staff to control the handheld device to work. The anti-slip leather cover is set to increase the anti-slip property of the staff when holding the holding frame 12. When sampling frozen soil, the output end of the No. 2 reduction motor 6 drives the rotating plate 7 to rotate, and the rotating plate 7 drives the multiple balls 71 to roll inside the annular rolling groove 8. The multiple balls 71 and the annular rolling groove 8 are used. The cooperation is convenient for maintaining the stability of the rotating plate 7 during rotation. While the rotating plate 7 rotates, it drives the sampling outer cylinder 2 and the sampling inner cylinder 3 to rotate through the two fixing frames 9, so that the sampling outer cylinder 2 and the sampling inner cylinder 3 rotate deep into the underground to collect samples. At the same time, since the sampling outer cylinder 2 is heated in advance, the ice crystals in the frozen soil can be melted on the outside of the sampling outer cylinder 2, making the sampling process smoother. The antifreeze liquid inside the water storage tank 4 is circulated and pumped into the cooling chamber 31 inside the sampling inner cylinder 3 to cool the sampling inner cylinder 3, thereby reducing the heat generated by friction between the sampling inner cylinder 3 and the sampled frozen soil, and the original state of the frozen soil sample can be maintained.

[0040] Embodiment 4: like Figure 1-6 As shown, a push plate 57 is movably sleeved on the upper part of the inner cavity of the cooling chamber 31, a screw rod 54 is arranged inside the mounting cover 5, the top end of the screw rod 54 is rotatably connected to the top of the inner cavity of the mounting cover 5, and the bottom end of the screw rod 54 is rotatably connected to the middle part of the top of the sampling outer cylinder 2, a slider 55 is slidably sleeved on the upper part of the interior of the mounting cover 5, and the inner thread of the slider 55 is sleeved on the outer wall of the screw rod 54, and connecting rods 56 are arranged on both sides of the interior of the mounting cover 5, and the number of the connecting rods 56 is two, and the top ends of the two connecting rods 56 are fixedly connected. Connected to both sides of the bottom of the slider 55, the lower part of the outer wall of the two connecting rods 56 is movably sleeved on the top of the sampling outer cylinder 2, and the bottom end of the connecting rod 56 extends to the inner cavity of the sampling inner cylinder 3 and is fixedly connected to the top of the push plate 57. A worm 52 is fixedly installed on the output end of the No. 1 reduction motor 51, and one end of the worm 52 is rotatably connected to the upper left side of the inner wall of the mounting cover 5. A worm wheel 53 is fixedly sleeved on the upper part of the outer wall of the screw rod 54. The worm wheel 53 is located on the back of the worm 52, and the worm 52 and the worm wheel 53 are meshed.

[0041] In this embodiment, if it is necessary to take out the frozen soil sample collected by the sampling inner cylinder 3, the output end of the No. 1 reduction motor 51 is used to drive the worm 52 to rotate, and the worm 52 drives the worm wheel 53 to rotate. The worm wheel 53 simultaneously drives the two ends of the screw rod 54 to rotate at the top of the inner wall of the mounting cover 5 and the top of the sampling outer cylinder 2. The rotation of the screw rod 54 can drive the slider 55 to slide inside the mounting cover 5. The slider 55 drives the push plate 57 to move in the inner cavity of the sampling inner cylinder 3 through the connecting rod 56, and the sampled frozen soil is pushed out from the inside of the sampling inner cylinder 3, which is convenient for the staff to collect the sampled frozen soil.

[0042] In summary, if Figure 1-6As shown, the plateau frozen soil sampling device, when in use, the antifreeze liquid in the heating chamber 21 is heated by the electric heating rod 22, and the antifreeze liquid heats the sampling outer cylinder 2. At this time, the solenoid valve 43 and the small water pump 44 are opened, and the antifreeze liquid in the water storage tank 4 is pumped into the cooling chamber 31 inside the sampling inner cylinder 3 through the No. 1 conduit 42, the small water pump 44 and the No. 2 conduit 45, so as to cool the sampling inner cylinder 3. When the antifreeze liquid fills the cooling chamber 31, the antifreeze liquid can be discharged back into the storage tank through the return pipe assembly 46 and the one-way drain valve 47. The antifreeze liquid in the water tank 4 is cooled by the cooling end of the semiconductor refrigerator 412 and the heat conducting sheet 411, so that the antifreeze liquid in the water tank 4 can be recycled to cool the sampling inner cylinder 3. At this time, the staff can hold the holding frame 12 to operate the device, move the sampling outer cylinder 2 to the designated frozen soil sampling location, and press the device downward, and drive the rotating plate 7 to rotate through the output end of the second reduction motor 6, and the rotating plate 7 drives multiple balls 71 to roll inside the annular rolling groove 8, and the rotating plate 7 drives the fixed frame 9 to rotate. The sampling outer cylinder 2 and the sampling inner cylinder 3 rotate, so that the sampling outer cylinder 2 and the sampling inner cylinder 3 rotate deep into the ground to collect samples. At the same time, because the sampling outer cylinder 2 is heated in advance, the outer part of the sampling outer cylinder 2 can melt the ice crystals in the frozen soil, which helps to reduce the friction between the sampling outer cylinder 2 and the frozen soil, making the sampling process smoother. The antifreeze liquid inside the water storage tank 4 is circulated and pumped into the cooling chamber 31 inside the sampling inner cylinder 3 to cool the sampling inner cylinder 3, thereby reducing the heat generated by friction between the sampling inner cylinder 3 and the sampled frozen soil. The original state of the frozen soil sample can be maintained. After the frozen soil is collected and sampled, if the frozen soil collected inside the sampling inner tube 3 needs to be taken out, the worm 52 can be driven to rotate by the output end of the No. 1 reduction motor 51, and the worm 52 drives the worm wheel 53 and the screw 54 to rotate. The screw 54 rotates to drive the slider 55 to slide inside the mounting cover 5, and the slider 55 drives the push plate 57 to move in the inner cavity of the sampling inner tube 3 through the connecting rod 56, and the sampled frozen soil is pushed out from the inside of the sampling inner tube 3, so that it is convenient for the staff to collect the sampled frozen soil.

[0043] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change; Secondly: In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other; Finally: 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, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A plateau frozen soil sampling device, comprising a mounting platform (1), characterized in that: A sampling outer cylinder (2) is provided below the mounting platform (1), a heating chamber (21) is provided inside the sampling outer cylinder (2), electric heating rods (22) are fixedly installed on both sides of the top of the sampling outer cylinder (2), the heating ends of the electric heating rods (22) extend into the interior of the heating chamber (21), a sampling inner cylinder (3) is fixedly sleeved in the inner chamber of the sampling outer cylinder (2), a cooling chamber (31) is provided inside the sampling inner cylinder (3), a push plate (57) is movably sleeved above the inner chamber of the cooling chamber (31), a rotating plate (7) is movably sleeved below the interior of the mounting platform (1), fixed frames (9) are fixedly connected to both sides of the bottom of the rotating plate (7), two fixed frames (9) are provided, the bottom ends of the two fixed frames (9) are fixedly connected to the upper sides of both sides of the sampling outer cylinder (2), a water storage tank (4) is fixedly connected to the middle of the bottom of the rotating plate (7), the water storage tank (4) and the heating chamber (31) are fixedly sleeved to the lower part of the mounting platform (1), and the water storage tank (4) and the heating chamber (31) are fixedly sleeved to the lower part of the mounting platform (1). The interior of the hot chamber (21) is provided with antifreeze liquid. The bottom of the water storage tank (4) is fixedly connected to a No. 1 conduit (42), and a solenoid valve (43) is installed on the No. 1 conduit (42). A small water pump (44) is fixedly installed on the right side of the bottom of the water storage tank (4). One end of the No. 1 conduit (42) is fixedly installed on the input end of the small water pump (44), and the output end of the small water pump (44) is fixedly connected to a No. 2 conduit (45). The bottom end of the No. 2 conduit (45) extends to the upper right side of the interior of the cooling chamber (31). A return pipe assembly (46) is fixedly installed on the left side of the bottom of the water storage tank (4). A one-way drain valve (47) is installed on the return pipe assembly (46). The top of the one-way drain valve (47) is a drain end, and the bottom of the one-way drain valve (47) is a water inlet end. The bottom end of the return pipe assembly (46) extends to the lower left side of the interior of the cooling chamber (31).

2. A plateau frozen soil sample collection device according to claim 1, characterized in that: A second reduction motor (6) is fixedly mounted in the middle of the top of the mounting platform (1), and an output end of the second reduction motor (6) extends into the interior of the mounting platform (1) and is fixedly connected to the middle of the top of the rotating plate (7).

3. The plateau frozen soil sampling device according to claim 1, characterized in that: The outer wall of the rotating plate (7) is rotatably inlaid with a plurality of balls (71), the inner wall of the mounting platform (1) is provided with an annular rolling groove (8), and one side of the plurality of balls (71) is rollingly arranged inside the annular rolling groove (8).

4. A plateau frozen soil sample collection device according to claim 1, characterized in that: Cooling ports (41) are provided below both sides of the water storage tank (4), a heat conducting sheet (411) is fixedly connected to the interior of the cooling port (41), a semiconductor refrigerator (412) is provided inside the cooling port (41), a cooling end of the semiconductor refrigerator (412) is fixedly mounted on one side of the heat conducting sheet (411), and a finned heat sink (413) is fixedly mounted on the heat dissipation end of the semiconductor refrigerator (412).

5. The device for collecting samples of plateau frozen soil according to claim 1, characterized in that: A water inlet pipe (414) is fixedly installed above the left side of the water storage tank (4), and a drainage pipe (415) is fixedly installed below the right side of the water storage tank (4). Water valves are installed on both the water inlet pipe (414) and the drainage pipe (415).

6. The device for collecting samples of plateau frozen soil according to claim 1, characterized in that: A mounting cover (5) is fixedly mounted in the middle of the top of the sampling outer cylinder (2), a screw rod (54) is arranged inside the mounting cover (5), the top end of the screw rod (54) is rotatably connected to the top of the inner cavity of the mounting cover (5), the bottom end of the screw rod (54) is rotatably connected to the middle of the top of the sampling outer cylinder (2), a slider (55) is slidably sleeved on the upper part of the inside of the mounting cover (5), and the internal thread of the slider (55) is sleeved on the outer wall of the screw rod (54).

7. A plateau frozen soil sample collection device according to claim 6, characterized in that: Connecting rods (56) are provided on both sides of the interior of the mounting cover (5), and there are two connecting rods (56). The top ends of the two connecting rods (56) are fixedly connected to the two sides of the bottom of the slider (55), and the lower parts of the outer walls of the two connecting rods (56) are movably sleeved on the top of the sampling outer cylinder (2). The bottom ends of the connecting rods (56) extend to the inner cavity of the sampling inner cylinder (3) and are fixedly connected to the top of the push plate (57).

8. The device for collecting samples of plateau frozen soil according to claim 6, characterized in that: A first reduction motor (51) is fixedly mounted on the upper right side of the inner wall of the mounting cover (5); a worm (52) is fixedly mounted on the output end of the first reduction motor (51); one end of the worm (52) is rotatably connected to the upper left side of the inner wall of the mounting cover (5); a worm wheel (53) is fixedly sleeved on the upper side of the outer wall of the lead screw (54); the worm wheel (53) is located on the back side of the worm (52); and the worm (52) and the worm wheel (53) are meshed with each other.

9. The device for collecting samples of plateau frozen soil according to claim 1, characterized in that: A No. 1 power box (10) is fixedly mounted on the left side of the top of the mounting platform (1), and a No. 1 storage battery is arranged inside the No. 1 power box (10). A No. 2 power box (11) is fixedly mounted on one side of the bottom of the rotating plate (7), and a No. 2 storage battery is arranged inside the No. 2 power box (11).

10. The plateau frozen soil sample collection device according to claim 1, characterized in that: The two sides of the mounting platform (1) are fixedly connected with a holding frame (12), and the outer wall of the holding frame (12) is fixedly sleeved with a non-slip leather cover.

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