A frozen soil sample thawing device and method

Abstract

This invention relates to the field of permafrost research, and more particularly to a permafrost sample thawing device. This invention provides a permafrost sample thawing device and method that can thaw permafrost more quickly while preserving the stability of the microbial community structure, facilitating subsequent detection of microbial components in the soil. The permafrost sample thawing device and method include a support, a cylinder, and a threaded top cover; the cylinder is fixedly connected to the top of the support, and the threaded top cover is threadedly connected to the top of the cylinder. Workers place the permafrost sample into a wire mesh filter cylinder, then add warm water to the cylinder, and then start the pump. The pump draws the warm water from the cylinder into a spray plate, which sprays the warm water onto the permafrost sample in the wire mesh filter cylinder, thereby thawing the permafrost sample. Because warm water does not easily kill microorganisms, it can thaw the permafrost while preserving the stability of the microbial community structure.

Description

Technical Field

[0001] This invention relates to the field of permafrost research, and more particularly to a device for thawing permafrost samples. Background Technology

[0002] Permafrost covers 25% of the Earth's land area, forming the main body of the Earth's land ice layer, and is also an important habitat for psychrophilic microorganisms. Research on permafrost microorganisms has long been widely recognized, and numerous studies have shown that the abundant microorganisms in permafrost play a crucial regulatory role in soil carbon cycling in permafrost regions. Under the influence of global warming and climate change, the accelerated degradation of permafrost has led to increased activity of microorganisms within it, becoming a significant factor influencing greenhouse gas emissions in permafrost regions. Therefore, permafrost microbiology research is a hot topic in global climate change research. However, due to the unique physical properties of permafrost, permafrost microbial sampling still faces certain technical challenges.

[0003] When researchers sample and analyze microorganisms in permafrost, the permafrost needs to be thawed. Currently, commonly used methods for permafrost thawing include natural thawing and high-temperature heating thawing. Natural thawing is relatively time-consuming, causing inconvenience to the sampling process. While high-temperature heating thawing can quickly thaw permafrost, excessively high temperatures can easily disrupt the stability of the native microbial community, reducing the accuracy of research results. Therefore, there is an urgent need for a permafrost sample thawing device and method that can achieve rapid thawing of permafrost while preserving the stability of the microbial community structure. Summary of the Invention

[0004] Therefore, the purpose of this invention is to provide a frozen soil sample thawing device and thawing method that can thaw frozen soil more quickly while protecting the stability of the microbial community structure, so as to facilitate subsequent detection of microbial components in the soil.

[0005] The technical implementation of the present invention is as follows: a frozen soil sample thawing device and thawing method, comprising a support, a cylinder, a threaded top cover, a threaded bottom cover, a drain valve, a driving component, a loading component, and an auxiliary thawing component. The cylinder is fixedly connected to the top of the support, the top of the cylinder is threadedly connected to the threaded top cover, the top of the cylinder is threadedly connected to the threaded bottom cover, the bottom of the threaded bottom cover is fixedly connected to the drain valve, the drain valve is connected to the cylinder, the driving component is disposed inside the cylinder, the loading component is disposed on the driving component, and the auxiliary thawing component is disposed inside the cylinder.

[0006] Furthermore, the driving component includes a circular support plate frame, vertical rods, a rotating seat, cams, a servo motor, and a six-sided rod. The circular support plate frame is fixedly connected to the inside of the cylinder. Two vertical rods are fixedly connected to the upper side of the circular support plate frame, and the two vertical rods are symmetrically arranged. A servo motor is fixedly connected to the middle of the upper side of the circular support plate frame. A six-sided rod is fixedly connected to the output shaft of the servo motor. A rotating seat is slidably connected to the six-sided rod. The rotating seat is slidably connected to the circular support plate frame. Two cams are fixedly connected to the inner wall of the rotating seat, and the two cams are symmetrically arranged.

[0007] Furthermore, the loading component includes a vertical plate, a wire mesh filter cylinder, a threaded disc, and a torsion spring. Two vertical plates are fixedly connected to the top of the rotating seat, and a wire mesh filter cylinder is rotatably connected between the two vertical plates. A threaded disc is threadedly connected to the top of the wire mesh filter cylinder, and a torsion spring is connected between the wire mesh filter cylinder and the vertical plate.

[0008] Furthermore, the auxiliary defrosting component includes a pump body, a screen, a support plate, a spray plate, a second torsion spring, and an infusion hose. The pump body is fixedly connected to the bottom of the circular support plate frame, and a screen is fixedly connected to the bottom of the pump body's inlet. Two support plates are fixedly connected to the inner wall of the cylinder, and a spray plate is rotatably connected between the two support plates. A second torsion spring is connected between the spray plate and the support plates. An infusion hose is fixedly connected to the bottom of the spray plate, and the infusion hose communicates with the spray plate, the infusion hose is fixedly connected to the pump body, and the infusion hose communicates with the pump body.

[0009] Furthermore, it also includes a swinging component, which is disposed on the cylinder body. The swinging component includes a long rod and a fixed rod. Two long rods are fixedly connected to the bottom of the steel wire filter cylinder, and the two long rods are arranged symmetrically. A fixed rod is fixedly connected to the inner wall of the steel wire filter cylinder.

[0010] Furthermore, it also includes a pressing component, which is disposed on a threaded disc. The pressing component includes a guide rail frame, clamping plates, return springs, an ultrasonic motor, and a start switch. An ultrasonic motor is fixedly connected to the bottom of the threaded disc, and a guide rail frame is fixedly connected to the output shaft of the ultrasonic motor. Four clamping plates are slidably connected to the guide rail frame, and a return spring is connected between each of the four clamping plates and the guide rail frame. A start switch is fixedly connected to the top of the threaded disc, and the start switch is connected to the ultrasonic motor through a circuit.

[0011] Furthermore, it also includes an adjustment component, which includes a movable rod, a round rod, and a slotted plate. The movable rod is slidably connected to both of the support plates, and a round rod is fixedly connected to both of the movable rods. Two slotted plates are fixedly connected to the lower part of the spray plate. The two slotted plates are symmetrically arranged, and the slotted plates are slidably connected to the round rods.

[0012] Furthermore, it also includes a heating ring, which is fixed to the outer wall of the rotating seat.

[0013] A method for using a frozen soil sample thawing device includes the following steps:

[0014] Step 1: The staff unscrews the threaded top cover and threaded disc, puts the frozen soil sample into the wire mesh filter cylinder, then injects warm water into the cylinder, then screws the threaded top cover and threaded disc back on, and finally starts the servo motor and pump.

[0015] Step 2: The pump body draws warm water from the cylinder into the spray plate, and the spray plate sprays warm water to rinse the frozen soil sample inside the steel wire filter cylinder.

[0016] Step 3: The servo motor drives the rotating seat to rotate, causing the wire mesh filter cylinder to rotate. The vertical rod will squeeze the cam, and the rotating seat will move up and down, causing the wire mesh filter cylinder to move up and down. This will adjust the contact surface between the frozen soil sample and the warm water, allowing the spray plate to spray water onto different parts of the frozen soil sample. The water sprayed from the spray plate can thoroughly rinse the frozen soil sample.

[0017] Step 4: As the wire mesh filter cylinder rotates and moves up and down, the long rod will press against the fixed rod, causing the wire mesh filter cylinder to tilt, which in turn causes the thawed frozen soil sample inside the wire mesh filter cylinder to fall onto the threaded bottom cover.

[0018] Step 5: When the staff screws on the threaded disc, the frozen soil sample inside the wire mesh filter cylinder will squeeze the clamping plate, and the return spring will be stretched. As the frozen soil sample gradually melts, the return spring will return to its original position, and the clamping plate will continue to hold the frozen soil sample. When the wire mesh filter cylinder moves upward a certain distance, the wire mesh filter cylinder will swing. At this time, the threaded top cover will press the start switch to start the ultrasonic motor. The ultrasonic motor will drive the clamping plate and the frozen soil sample to vibrate and rotate, causing the frozen soil sample to break down and increase the contact area between the frozen soil sample and the warm water.

[0019] Step Six: When the rotating seat moves upward, the rotating seat squeezes the movable rod and the round rod, and the round rod squeezes the slotted plate, causing the slotted plate to drive the spray plate to rotate in the direction of the inclined steel wire filter cylinder, which can wash away the frozen soil sample that has melted inside the steel wire filter cylinder.

[0020] Step 7: After rinsing the frozen soil sample with warm water, the temperature of the warm water will drop. The heating ring can heat the water in the pump body to maintain the water temperature at a certain level.

[0021] Compared with the prior art, the present invention has the following advantages:

[0022] 1. First, the staff unscrews the threaded top cap on the cylinder and then unscrews the threaded disc on the wire mesh filter cylinder. Next, the staff places the frozen soil sample into the wire mesh filter cylinder, screws the threaded disc back on, adds warm water into the cylinder, and then screws the threaded top cap back on. The staff starts the pump, which draws the warm water from the cylinder. The warm water passes through a screen, which filters the water. After filtration, the warm water is directed through an infusion hose to a spray plate. The spray plate sprays the warm water onto the frozen soil sample in the wire mesh filter cylinder, thus thawing the frozen soil sample. Because warm water does not easily kill microorganisms, it can thaw the frozen soil while protecting the stability of the microbial community structure, facilitating subsequent testing of the microbial components in the soil.

[0023] 2. The staff starts the servo motor, which drives the six-sided rod to rotate via the output shaft. The rotation of the six-sided rod drives the rotating seat and the wire mesh filter cylinder to rotate. The rotation of the rotating seat drives the cam to rotate. The cam contacts the vertical rod, and the vertical rod squeezes the cam, causing the cam to move upward. The cam drives the rotating seat, the vertical plate, and the wire mesh filter cylinder to move upward. The rotation of the rotating seat drives the cam to continue rotating. The cam disengages from the vertical rod. Under the action of the cam, the rotating seat, and the wire mesh filter cylinder's own weight, the cam, the rotating seat, and the wire mesh filter cylinder move downward to reset. This causes the wire mesh filter cylinder to move up and down repeatedly, increasing the contact area between the frozen soil sample inside the wire mesh filter cylinder and the warm water sprayed from the spray plate. The warm water can more thoroughly rinse the frozen soil sample, and the frozen soil sample thaws more quickly.

[0024] 3. The rotating seat rotates, causing the long rods to rotate. When one of the long rods rotates to below the fixed rod, the rotating seat moves upward, causing the long rod to move upward as well. One of the long rods then contacts the fixed rod, which presses against it, causing it to rotate downward. This causes the wire mesh filter cylinder to swing downward. The torsion spring is then twisted, causing the wire mesh filter cylinder to tilt. The rotating seat continues to rotate, causing the long rod to disengage from the fixed rod. The torsion spring then resets, causing the wire mesh filter cylinder to return to its original position. This continuous up-and-down swinging motion of the wire mesh filter cylinder allows the thawed frozen soil sample inside to fall onto the threaded bottom cover. This allows the thawed frozen soil sample on the outside to separate more quickly from the unthawed sample inside, enabling the unthawed sample inside to come into contact with warm water more quickly, thus further accelerating the thawing process.

[0025] 4. When the staff places the frozen soil sample into the wire mesh filter cylinder and screws on the threaded disc, the frozen soil sample inside the filter cylinder will squeeze the four clamping plates and move them away from each other. The return spring is compressed. As the frozen soil sample is gradually washed and the ice on it melts in the warm water, the hardness of the frozen soil sample decreases, the return spring resets, and the return spring drives the clamping plates to reset. The clamping plates will hold the frozen soil sample in place. When the wire mesh filter cylinder moves upward a certain distance, it will swing. The wire mesh filter cylinder will drive the threaded disc and the start switch to move upward and swing. The start switch contacts the threaded top cover, and the threaded top cover squeezes the start switch. The start switch controls the ultrasonic motor to start. The ultrasonic motor drives the guide rail, return spring, clamping plates, and frozen soil sample to rotate and vibrate through the output shaft, which facilitates the exposure of the frozen soil inside to fully contact with the warm water, allowing the frozen soil sample to break down more quickly.

[0026] 5. When the rotating seat moves upward, it contacts the movable rod, which then presses against the movable rod. The movable rod moves upward, driving the round rod to move upward. The round rod presses against the slotted plate, causing the slotted plate to rotate the spray plate in the direction of the inclined wire mesh cylinder. This keeps the spray plate parallel to the wire mesh cylinder, allowing for a more thorough flushing away of the thawed frozen soil sample inside the wire mesh cylinder. Furthermore, it allows the unthawed frozen soil sample inside to come into contact with warm water more quickly, thus further thawing the frozen soil sample. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the first three-dimensional structure of the present invention.

[0028] Figure 2 This is a schematic diagram of the second three-dimensional structure of the present invention.

[0029] Figure 3 This is a partial cross-sectional three-dimensional structural schematic diagram of the present invention.

[0030] Figure 4 This is a partial cross-sectional perspective view of the three-dimensional structure of the driving component of the present invention.

[0031] Figure 5 This is a first cross-sectional three-dimensional structural diagram of the driving component of the present invention.

[0032] Figure 6 This is a second cross-sectional three-dimensional structural diagram of the driving component of the present invention.

[0033] Figure 7 This is a three-dimensional structural diagram of the vertical plate, steel wire filter cylinder, and long rod of the present invention.

[0034] Figure 8 This is a partial three-dimensional structural diagram of the loading component of the present invention.

[0035] Figure 9 This is an enlarged three-dimensional structural diagram of the steel wire filter cylinder of the present invention.

[0036] Figure 10 This is a three-dimensional structural diagram of the extrusion component of the present invention.

[0037] Figure 11 This is a partial cross-sectional perspective view of the three-dimensional structure of the swing component of the present invention.

[0038] Figure 12 This is a partial cross-sectional three-dimensional structural schematic diagram of the defrosting auxiliary component of the present invention.

[0039] Figure 13 For the present invention Figure 12 A magnified three-dimensional structural diagram at point A in the middle.

[0040] Figure 14 This is a partial three-dimensional structural diagram of the defrosting auxiliary component of the present invention.

[0041] Figure 15 This is a three-dimensional structural diagram of the extrusion component of the present invention.

[0042] Figure 16 This is a schematic diagram of the workflow of the present invention.

[0043] The above-mentioned attached drawings include the following reference numerals: 1. Support, 2. Cylinder, 3. Threaded top cover, 4. Threaded bottom cover, 5. Drain valve, 61. Circular support plate frame, 62. Vertical rod, 63. Rotary seat, 64. Cam, 65. Servo motor, 66. Six-sided rod, 71. Vertical plate, 72. Steel wire filter screen cylinder, 73. Threaded disc, 74. Torsion spring one, 701. Pump body, 702. Screen, 703. Support plate, 704. Spray plate, 705. Torsion spring two, 706. Infusion hose, 81. Long rod, 82. Fixed rod, 91. Guide rail frame, 92. Clamping plate, 93. Return spring, 94. Ultrasonic motor, 95. Start switch, 111. Movable rod, 112. Round rod, 113. Slotted plate, 12. Heating ring. Detailed Implementation

[0044] Although the invention may be described with respect to specific applications or industries, those skilled in the art will recognize its broader applicability. Those skilled in the art will understand that terms such as "above," "below," "upward," "downward," etc., are used to describe the drawings and not to indicate a limitation on the scope of the invention as defined by the appended claims. Any numerical designations such as "first" or "second" are merely illustrative and not intended to limit the scope of the invention in any way.

[0045] Example 1

[0046] A device and method for thawing frozen soil samples, such as Figures 1-15 As shown, the device includes a support 1, a cylinder 2, a threaded top cover 3, a threaded bottom cover 4, a drain valve 5, a drive component, a loading component, and an auxiliary thawing component. The cylinder 2 is riveted to the top of the support 1 and is used to store warm water. The top of the cylinder 2 is threadedly connected to the threaded top cover 3 and the top of the cylinder 2 is threadedly connected to the threaded bottom cover 4. The bottom of the threaded bottom cover 4 is welded to the drain valve 5, which is used to discharge warm water and is connected to the cylinder 2. The drive component is located inside the cylinder 2 and is used to increase the contact area between the frozen soil and the warm water. The loading component is located on the drive component and is used to store frozen soil samples. The auxiliary thawing component is located inside the cylinder 2 and can thaw the frozen soil.

[0047] The driving component includes a circular support plate frame 61, vertical rods 62, a rotating seat 63, cams 64, a servo motor 65, and a hexagonal rod 66. The circular support plate frame 61 is riveted inside the cylinder 2. Two vertical rods 62 are welded to the upper side of the circular support plate frame 61, and the two vertical rods 62 are symmetrically arranged. A servo motor 65 is welded to the middle of the upper side of the circular support plate frame 61. The output shaft of the servo motor 65 is connected to the hexagonal rod 66, and the rotating seat 63 is slidably connected to the circular support plate frame 61. Two cams 64 are welded to the inner wall of the rotating seat 63, and the two cams 64 are symmetrically arranged.

[0048] The loading component includes a vertical plate 71, a wire mesh filter cylinder 72, a threaded disc 73, and a torsion spring 74. Two vertical plates 71 are welded to the top of the rotating seat 63, and a wire mesh filter cylinder 72 is rotatably connected between the two vertical plates 71. The wire mesh filter cylinder 72 is used to store frozen soil samples. The top of the wire mesh filter cylinder 72 is threadedly connected to the threaded disc 73. A torsion spring 74 is connected between the wire mesh filter cylinder 72 and the vertical plate 71, and the torsion spring 74 can stabilize the wire mesh filter cylinder 72 on the vertical plate 71.

[0049] The auxiliary defrosting components include a pump body 701, a screen 702, a support plate 703, a spray plate 704, a torsion spring 705, and an infusion hose 706. The pump body 701 is welded to the bottom of the circular support frame 61. The pump body 701 is used to draw warm water. A screen 702 is fixedly connected to the bottom of the water inlet of the pump body 701 for filtering the warm water. Two support plates 703 are welded to the inner wall of the cylinder 2, and the two support plates 703 are rotatably connected. A spray plate 704 is provided, which sprays warm water onto the frozen soil sample inside the wire mesh filter cylinder 72. A torsion spring 705 is connected between the spray plate 704 and the support plate 703. An infusion hose 706 is fixedly connected to the bottom of the spray plate 704. The infusion hose 706 can guide the flow of warm water. The infusion hose 706 is connected to the spray plate 704 and fixedly connected to the pump body 701. The infusion hose 706 is connected to the pump body 701.

[0050] When testing the microbial components in frozen soil samples from tea plantations, the frozen soil samples need to be thawed. First, the operator unscrews the threaded cap 3 on the cylinder 2, then unscrews the threaded disc 73 on the wire mesh filter cylinder 72. Next, the operator places the frozen soil sample into the wire mesh filter cylinder 72, screws on the threaded disc 73, adds warm water to the cylinder 2, and screws on the threaded cap 3 again. The operator starts the pump 701, which draws the warm water from the cylinder 2. The warm water passes through the screen 702, which filters the water. After filtration, the warm water flows through the infusion tubing 706. The solution is guided to the spray plate 704, which sprays warm water onto the frozen soil sample in the wire mesh filter cylinder 72, thereby thawing the frozen soil sample. Because warm water does not easily kill microorganisms, it can thaw the frozen soil while protecting the stability of the microbial community structure, facilitating subsequent detection of microbial components in the soil. The operator starts the servo motor 65, which drives the hexagonal rod 66 to rotate via the output shaft. The rotation of the hexagonal rod 66 drives the rotating seat 63 to rotate, which in turn drives the vertical plate 71, torsion spring 74, and wire mesh filter cylinder 72 to rotate. 4. Stabilize the wire mesh filter cylinder 72 on the vertical plate 71 to increase the contact area between the frozen soil sample inside the wire mesh filter cylinder 72 and the warm water sprayed from the spray plate 704. The warm water can more thoroughly wash the frozen soil sample, thereby thawing the frozen soil sample quickly. The rotating seat 63 rotates, driving the cam 64 to rotate. The cam 64 contacts the vertical rod 62, and the vertical rod 62 squeezes the cam 64, causing the cam 64 to move upward. The cam 64 drives the rotating seat 63, the vertical plate 71, and the wire mesh filter cylinder 72 to move upward. The rotating seat 63 rotates, driving the cam 64 to continue rotating. The cam 64 disengages from the vertical rod 62. Under the influence of their own weight, the rotating seat 63, the vertical plate 71, and the wire mesh filter cylinder 72 move downwards to reset, causing the wire mesh filter cylinder 72 to move up and down repeatedly. This allows the frozen soil sample inside the wire mesh filter cylinder 72 to be flushed more thoroughly and thawed more quickly. After the frozen soil sample inside the wire mesh filter cylinder 72 has thawed, the operator opens the drain valve 5 to drain the warm water. The operator then turns off the pump body 701 and the servo motor 65, and then unscrews the threaded bottom cover 4 to easily remove the thawed frozen soil sample from the threaded bottom cover 4.

[0051] Example 2

[0052] Based on Example 1, such as Figures 7-11 As shown, it also includes a swinging component, which is provided on the cylinder 2. The swinging component includes a long rod 81 and a fixed rod 82. Two long rods 81 are welded to the bottom of the wire mesh filter cylinder 72, and the two long rods 81 are arranged symmetrically. A fixed rod 82 is welded to the inner wall of the wire mesh filter cylinder 72.

[0053] The rotating seat 63 rotates, causing the long rod 81 to rotate. When one of the long rods 81 rotates below the fixed rod 82, the rotating seat 63 moves upward, causing the long rod 81 to move upward as well. One of the long rods 81 then contacts the fixed rod 82, which presses against it, causing the long rod 81 to rotate downward. This causes the wire mesh filter cylinder 72 to swing downward, torsion spring 74 to twist, tilting the wire mesh filter cylinder 72. The rotating seat 63 continues to rotate, causing the long rod 81 to continue rotating. A long rod 81 disengages from the fixed rod 82, and the torsion spring 74 resets. The torsion spring 74 drives the wire mesh filter cylinder 72 to reset upwards, causing the wire mesh filter cylinder 72 to swing up and down repeatedly. This causes the thawed frozen soil sample inside the wire mesh filter cylinder 72 to fall onto the threaded bottom cover 4, allowing the thawed frozen soil sample on the outside to separate from the unthawed frozen soil sample inside more quickly. This allows the unthawed frozen soil sample inside to come into contact with warm water more quickly, thereby further accelerating the thawing speed of the frozen soil sample.

[0054] Example 3

[0055] Based on Example 1, such as Figure 11 and Figure 15 As shown, it also includes a pressing component, which is mounted on a threaded disc 73. The pressing component includes a guide rail frame 91, a clamping plate 92, a return spring 93, an ultrasonic motor 94, and a start switch 95. The ultrasonic motor 94 is welded to the bottom of the threaded disc 73. The guide rail frame 91 is fixedly connected to the output shaft of the ultrasonic motor. Four clamping plates 92 are slidably connected to the guide rail frame 91. The clamping plates 92 can break down the frozen soil sample, making the frozen soil sample thaw faster. A return spring 93 is connected between each of the four clamping plates 92 and the guide rail frame 91. The start switch 95 is fixedly connected to the top of the threaded disc 73. The start switch 95 is connected to the ultrasonic motor 94 through a circuit and is used to control the start of the ultrasonic motor 94.

[0056] When the staff places the frozen soil sample into the wire mesh filter cylinder 72 and screws on the threaded disc 73, the frozen soil sample inside the wire mesh filter cylinder 72 will squeeze the four clamping plates 92 to move away from each other, and the return spring 93 will be compressed. As the frozen soil sample is gradually washed and the ice on the frozen soil sample gradually melts in the warm water, the hardness of the frozen soil sample decreases, and the return spring 93 returns to its original position. The return spring 93 drives the clamping plates 92 to return to their original position, and the clamping plates 92 will continue to squeeze the frozen soil sample. When the wire mesh filter cylinder 72 moves upward a certain distance, the wire mesh filter cylinder 72 will swing. The wire mesh filter cylinder 72 drives the threaded disc 73 and the start switch 95 to move upward and swing. The start switch 95 contacts the threaded top cover 3, and the threaded top cover 3 squeezes the start switch 95. The start switch 95 controls the ultrasonic motor 94 to start. The ultrasonic motor 94 drives the guide rail frame 91, the clamping plates 92 and the return spring 93 to rotate and vibrate through the output shaft, so that the frozen soil inside can be exposed and fully contacted with the warm water, so that the frozen soil sample can be broken down more quickly.

[0057] Example 4

[0058] Based on Example 1, such as Figure 13 As shown, it also includes an adjustment component, which includes a movable rod 111, a round rod 112, and a slotted plate 113. The movable rod 111 is slidably connected to both support plates 703, and the round rod 112 is welded to both movable rods 111. Two slotted plates 113 are welded to the lower part of the spray plate 704. The two slotted plates 113 are symmetrically arranged, and the slotted plates 113 are slidably connected to the round rods 112.

[0059] When the rotating seat 63 moves upward, it contacts the movable rod 111. The rotating seat 63 presses against the movable rod 111, causing the movable rod 111 to move upward. The movable rod 111 drives the round rod 112 to move upward, and the round rod 112 presses against the slotted plate 113. This causes the slotted plate 113 to drive the spray plate 704 to rotate in the direction of the inclined wire mesh cylinder 72, thereby keeping the spray plate 704 parallel to the wire mesh cylinder 72. This allows the thawed frozen soil sample inside the wire mesh cylinder 72 to be flushed away more thoroughly, and further allows the unthawed frozen soil sample inside to come into contact with warm water more quickly, thereby further thawing the frozen soil sample.

[0060] Example 5

[0061] Based on Example 1, such as Figure 14 The diagram also includes a heating ring 12, which is welded to the outer wall of the rotating seat 63. The heating ring 12 can heat warm water.

[0062] After the frozen soil sample is rinsed with warm water, the temperature of the warm water will drop. The heating ring 12 can heat the water in the pump body 701 to maintain the water temperature at a certain temperature, thereby accelerating the thawing speed of the frozen soil sample.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A device for thawing frozen soil samples, characterized in that: The device includes a support (1), a cylinder (2), a threaded top cover (3), a threaded bottom cover (4), a drain valve (5), a drive component, a loading component, and an auxiliary defrosting component. The top of the support (1) is fixedly connected to the cylinder (2). The top of the cylinder (2) is connected to the threaded top cover (3) by threads. The top of the cylinder (2) is connected to the threaded bottom cover (4) by threads. The bottom of the threaded bottom cover (4) is fixedly connected to the drain valve (5). The drain valve (5) is connected to the cylinder (2). The drive component is located inside the cylinder (2). The loading component is located on the drive component. The auxiliary defrosting component is located inside the cylinder (2). The driving component includes a circular support plate frame (61), vertical rods (62), a rotating seat (63), cams (64), a servo motor (65), and a six-sided rod (66). The circular support plate frame (61) is fixed inside the cylinder (2). Two vertical rods (62) are fixed to the upper side of the circular support plate frame (61). The two vertical rods (62) are symmetrically arranged. The servo motor (65) is fixed to the middle of the upper side of the circular support plate frame (61). The six-sided rod (66) is fixed to the output shaft of the servo motor (65). The rotating seat (63) is slidably connected to the six-sided rod (66). The rotating seat (63) is slidably connected to the circular support plate frame (61). Two cams (64) are fixed to the inner wall of the rotating seat (63). The two cams (64) are symmetrically arranged. The loading component includes a vertical plate (71), a wire mesh filter cylinder (72), a threaded disc (73), and a torsion spring (74). Two vertical plates (71) are fixed to the top of the rotating seat (63), and a wire mesh filter cylinder (72) is rotatably connected between the two vertical plates (71). The wire mesh filter cylinder (72) is used to store frozen soil samples. A threaded disc (73) is threadedly connected to the top of the wire mesh filter cylinder (72). A torsion spring (74) is connected between the wire mesh filter cylinder (72) and the vertical plate (71). The auxiliary defrosting component includes a pump body (701), a screen (702), a support plate (703), a spray plate (704), a torsion spring (705), and an infusion hose (706). The pump body (701) is fixedly connected to the bottom of the circular support frame (61). The pump body (701) is used to draw warm water. The bottom of the inlet of the pump body (701) is fixedly connected to a screen (702). The screen (702) is used to filter warm water. Two support plates (703) are fixedly connected to the inner wall of the cylinder (2). A spray plate (704) is rotatably connected between the support plate (703) and the support plate (703). The spray plate (704) sprays warm water onto the frozen soil sample inside the steel wire filter cylinder (72). A torsion spring (705) is connected between the spray plate (704) and the support plate (703). An infusion hose (706) is fixedly connected to the bottom of the spray plate (704). The infusion hose (706) is connected to the spray plate (704). The infusion hose (706) is fixedly connected to the pump body (701). The infusion hose (706) is connected to the pump body (701).

2. A frozen earth sample thawing apparatus as claimed in claim 1, wherein: It also includes a swinging component, which is provided on the cylinder (2). The swinging component includes a long rod (81) and a fixed rod (82). Two long rods (81) are fixedly connected to the bottom of the wire mesh filter cylinder (72). The two long rods (81) are arranged symmetrically. A fixed rod (82) is fixedly connected to the inner wall of the wire mesh filter cylinder (72).

3. A frozen earth sample thawing apparatus as claimed in claim 2, wherein: It also includes a pressing component, which is disposed on a threaded disc (73). The pressing component includes a guide rail frame (91), a clamping plate (92), a return spring (93), an ultrasonic motor (94), and a start switch (95). The ultrasonic motor (95) is fixedly connected to the bottom of the threaded disc (73). The guide rail frame (91) is fixedly connected to the output shaft of the ultrasonic motor (94). Four clamping plates (92) are slidably connected to the guide rail frame (91). A return spring (93) is connected between each of the four clamping plates (92) and the guide rail frame (91). The start switch (95) is fixedly connected to the top of the threaded disc (73). The start switch (95) is connected to the ultrasonic motor (94) through a circuit.

4. A frozen earth sample thawing apparatus as claimed in claim 3, wherein: It also includes an adjustment component, which includes a movable rod (111), a round rod (112) and a slotted plate (113). The movable rod (111) is slidably connected to both of the support plates (703), and the round rod (112) is fixedly connected to both of the movable rods (111). Two slotted plates (113) are fixedly connected to the lower part of the spray plate (704). The two slotted plates (113) are symmetrically arranged, and the slotted plates (113) are slidably connected to the round rods (112).

5. A frozen earth sample thawing apparatus as claimed in claim 4, wherein: It also includes a heating ring (12), which is fixed to the outer wall of the rotating seat (63).

6. A method of using a frozen earth sample thawing apparatus according to claim 5, wherein, Includes the following steps: Step 1: The staff unscrews the threaded top cover (3) and threaded disc (73), puts the frozen soil sample into the wire mesh filter cylinder (72), then injects warm water into the cylinder (2), then screws on the threaded top cover (3) and threaded disc (73), and finally starts the servo motor (65) and pump (701); Step 2: The pump (701) draws the warm water in the cylinder (2) into the spray plate (704), and the spray plate (704) sprays out warm water to rinse the frozen soil sample in the wire mesh filter cylinder (72); Step 3: The servo motor (65) drives the rotating seat (63) to rotate, so that the wire mesh filter cylinder (72) rotates, and the vertical rod (6 2) The cam (64) will be squeezed, the rotating seat (63) will move up and down, causing the wire mesh filter cylinder (72) to move up and down, thereby adjusting the contact surface between the frozen soil sample and the warm water, so that the spray plate (704) can spray water onto different parts of the frozen soil sample, and the water sprayed by the spray plate (704) can fully rinse the frozen soil sample; Step 4: During the rotation and up and down movement of the wire mesh filter cylinder (72), the long rod (81) will squeeze the fixed rod (82), causing the wire mesh filter cylinder (72) to tilt, thereby causing the thawed frozen soil sample inside the wire mesh filter cylinder (72) to fall onto the threaded bottom cover ( 4) Step 5: When the staff screws on the threaded disc (73), the frozen soil sample inside the wire mesh filter cylinder (72) will squeeze the clamping plate (92), and the return spring (93) will be stretched. When the frozen soil sample gradually melts, the return spring (93) will return to its original position, and the clamping plate (92) will continue to hold the frozen soil sample. When the wire mesh filter cylinder (72) moves upward a certain distance, the wire mesh filter cylinder (72) will swing. At this time, the threaded top cover (3) will press the start switch (95) to start the ultrasonic motor (94). The ultrasonic motor (94) will drive the clamping plate (92) and the frozen soil sample to vibrate and rotate, causing the frozen soil sample to break. Disassemble to increase the contact area between the frozen soil sample and the warm water; Step 6: When the rotating seat (63) moves upward, the rotating seat (63) squeezes the movable rod (111) and the round rod (112), and the round rod (112) squeezes the slotted plate (113), so that the slotted plate (113) drives the spray plate (704) to rotate in the direction of the steel wire filter cylinder (72), which can wash away the frozen soil sample that has melted in the steel wire filter cylinder (72); Step 7: After the warm water washes the frozen soil sample, the temperature of the warm water will drop, and the heating ring (12) can heat the water in the pump body (701) to keep the water temperature at a certain temperature.

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