Device and method for detecting temperature gradient distribution of high-temperature frozen soil

Abstract

The invention discloses a high-temperature frozen soil temperature gradient distribution detection device and method, and the device comprises an outer pipe, the side wall of the outer pipe is provided with first air holes, the middle part of the top end of the outer pipe is provided with a connector, the inner side of the bottom of the outer pipe is provided with a motor cavity, the inner side of the middle section of the outer pipe is provided with a ventilation cavity, and one side of the ventilation cavity is communicated with a through hole. A filter screen is arranged on the inner side wall of the outer pipe, a top plate is distributed on one side of the outer pipe, a clamping plate is arranged on the side, close to the outer pipe, of the top plate, and a top rod penetrates through the inner side of the through hole. By combining structures such as an outer pipe, an inner pipe, a mounting rod and a temperature sensor, subsequent temperature gradient distribution detection processing can be conveniently performed on the inner side of the high-temperature frozen soil, and compared with an existing mode which can only detect the temperature of a single layer, the device has higher detection efficiency, is better in overall practicability and is suitable for popularization and application. Temperature detection can be carried out on high-temperature frozen soil at different levels, and the detection is faster and more convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of frozen soil temperature detection, and in particular to a device and method for detecting the temperature gradient distribution of high-temperature frozen soil. Background Art

[0002] High-temperature frozen soil refers to soil or rock with a temperature of 0℃ or below and containing ice, but it is at a relatively high temperature state, close to or exceeding its normal upper freezing temperature limit. When detecting high-temperature frozen soil, a temperature gradient distribution detection device is used.

[0003] However, when existing high-temperature frozen soil temperature detection devices detect and process the frozen soil temperature, they often directly input the detection rod equipped with the temperature sensor into the inner side of the frozen soil, and then use the temperature sensed by the temperature sensor to detect the frozen soil temperature. However, this detection method is not only difficult to effectively detect the temperatures of different layers in the frozen soil, but also has poor detection efficiency and low overall practicality. Summary of the invention

[0004] In order to overcome the shortcomings of the prior art, the present invention provides a high-temperature frozen soil temperature gradient distribution detection device and a detection method, which can solve the problem that when the existing high-temperature frozen soil temperature detection device detects the frozen soil temperature, it often directly inputs a detection rod loaded with a temperature sensor into the inner side of the frozen soil, and then uses the temperature sensed by the temperature sensor to detect the frozen soil temperature. However, this detection method is not only difficult to effectively detect the temperatures of different layers in the frozen soil, but also has poor detection efficiency and low overall practicality. Technical problems.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a high-temperature frozen soil temperature gradient distribution detection device, comprising an outer tube, a first air vent is provided on the side wall of the outer tube, a connector is provided at the middle of the top end of the outer tube, a motor cavity is provided on the inner side of the bottom of the outer tube, a ventilation cavity is provided on the inner side of the middle section of the outer tube, and one side of the ventilation cavity is connected with a through hole, a filter is provided on the inner side wall of the outer tube, a top plate is provided on one side of the outer tube, and a clamping plate is provided on the side of the top plate close to the outer tube, a mandrel passes through the inner side of the through hole, and a retaining ring is connected to one end of the mandrel, a damper is connected to the end of the retaining ring away from the mandrel, and a fixing seat is connected to the other end of the damper, a spring is sleeved on the outer surface of the damper, and a detection structure is provided on the inner side of the ventilation cavity;

[0006] The detection structure includes an inner tube distributed in the inner cavity of the outer tube, and the side wall of the inner tube is provided with a second air vent, the inner cavity of the inner tube is provided with a detection cavity, and a mounting rod passes through the inner side of the detection cavity, and a temperature sensor is installed on the outer surface of the mounting rod.

[0007] As a preferred technical solution of the present invention, a driving motor is installed in the inner cavity of the motor cavity, and the output end of the driving motor is connected to a shaft rod, the outer surface of the shaft rod is sleeved with spiral leaves, and a protective sleeve is distributed on the outside of the spiral leaves, and a mud discharge hole is opened at the top of the protective sleeve.

[0008] As a preferred technical solution of the present invention, the through holes are distributed equidistantly along the surface of the outer tube, and the inner diameter of the through holes is matched with the outer diameter of the push rod.

[0009] As a preferred technical solution of the present invention, the top plate is slidably connected to the outer tube through the clamping plate, and the top plates are equidistantly distributed along the center point of the outer tube.

[0010] As a preferred technical solution of the present invention, the push rod is slidably connected to the outer tube through the retaining ring, and the push rod is symmetrically distributed along the vertical center line of the inner tube.

[0011] As a preferred technical solution of the present invention, the second air holes are equidistantly distributed along the outer surface of the inner tube, and the second air holes are communicated with the detection cavity.

[0012] As a preferred technical solution of the present invention, the detection chambers are equidistantly distributed on the inner side of the inner tube, and the detection chambers are connected to the ventilation chamber through the second air holes.

[0013] As a preferred technical solution of the present invention, the mounting rod passes through the detection cavity to be connected to the connector, and the temperature sensors are symmetrically distributed along the vertical center line of the mounting rod.

[0014] As a preferred technical solution of the present invention, the mud drainage holes are equidistantly distributed along the center point of the protective sleeve, and the mud drainage holes and the protective sleeve form an integrated structure.

[0015] A method for using a high-temperature frozen soil temperature gradient distribution detection device, comprising a high-temperature frozen soil temperature gradient distribution detection device according to any one of claims 1 to 9, characterized in that it comprises the following steps:

[0016] Step 1: First, place the entire device at the position to be detected, and then the motor works to rotate the shaft connected to its output end. At this time, the rotation of the shaft drives the spiral blade to rotate, and the protective sleeve provided can be used to loosen the soil, and the loosened soil will be discharged through the mud discharge hole. Then, the rotation of the spiral blade can make the entire outer tube be input into the high-temperature frozen soil, so as to facilitate the subsequent gradient distribution detection of the high-temperature frozen soil;

[0017] Step 2: When the outer tube is input into the inner side of the high-temperature frozen soil, the top plate will move laterally under the action of the soil pressure on both sides. At this time, the top plate will squeeze the top rod laterally along the side wall of the outer tube, thereby realizing the lateral movement of the top rod. When the top rod moves laterally, it will squeeze the damper to realize the deformation of the damper. At the same time, when the damper deforms, it will drive the spring to deform accordingly, and then combine the reverse force generated by the deformation of the damper and the spring to apply a reverse thrust to the top rod. At this time, the top rod pushes the top plate in the opposite direction, and then uses a plurality of top plates equidistantly distributed along the center point of the outer tube to support the soil, so as to prevent the high-temperature frozen soil from collapsing during the subsequent temperature detection process;

[0018] Step three: When the outer tube is completely input into the inner side of the high-temperature frozen soil, since the outer tube is made of heat-conducting material, the first air hole arranged in cooperation therewith can facilitate the subsequent air circulation into the inner side of the ventilation cavity opened on the inner side of the outer tube, and then the air is respectively input into the inner sides of a plurality of different detection cavities through the second air hole, and then the temperature sensor arranged on the inner side of the detection cavity is used to detect and process the temperature of frozen soil at different levels.

[0019] Compared with the prior art, the present invention can achieve the following beneficial effects:

[0020] 1. Combining the structures such as the outer tube, inner tube, mounting rod and temperature sensor, it is convenient to perform subsequent temperature gradient distribution detection on the inner side of the high-temperature frozen soil. Compared with the existing method of only being able to detect the temperature of a single layer, it not only has higher detection efficiency, but also has better overall practicality. It can detect the temperature of high-temperature frozen soil at different levels, which is faster and more convenient. When the outer tube is input to the inner side of the high-temperature frozen soil, since the outer tube is made of heat-conducting material, heat can be input to the inner side of the outer tube, and then circulate through the outer tube to the inner tube. Moreover, since there are multiple independent detection cavities distributed in the inner tube, and temperature sensors are provided in the detection cavities, the setting of multiple temperature sensors can be used to perform temperature detection on high-temperature frozen soil at different levels.

[0021] 2. Combined with the top plate, top rod, damper and spring structures, it is convenient to carry out effective support treatment on the soil wall of high-temperature frozen soil in the future, so as to prevent the melting of frozen soil, which may cause the collapse of the soil pit to be detected, and then cause the subsequent damage to the entire detection device, affecting the subsequent temperature detection treatment of high-temperature frozen soil. When the top plate is subjected to a lateral force, it will laterally squeeze the top rod connected to one side thereof. At this time, the top rod moves laterally to squeeze the damper connected to the other end thereof. At the same time, the deformation of the damper will drive the spring to deform accordingly, and then the reverse force generated by the deformation of the damper and the spring is combined to apply a reverse thrust to the top rod and the top plate, so as to support the soil wall of the pit by using the setting of the top plate and the top rod.

[0022] 3. Combined with the motor, shaft, spiral blades and protective sleeve structures, it is convenient to quickly loosen the high-temperature frozen soil when the entire outer tube is subsequently input into the soil, so as to facilitate the subsequent better insertion of the outer tube into the soil, and then perform temperature detection on the high-temperature frozen soil. The operation of the motor will cause the shaft to rotate accordingly. At this time, the rotation of the shaft realizes the rotation of the spiral blades. The rotation of the spiral blades and the setting of the protective sleeve can be used to loosen the high-temperature frozen soil, so as to facilitate the subsequent input of the outer tube into the inner side of the high-temperature frozen soil. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of a high-temperature frozen soil temperature gradient distribution detection device of the present invention;

[0024] Figure 2 It is a schematic diagram of the cross-sectional structure of the high-temperature frozen soil temperature gradient distribution detection device of the present invention;

[0025] Figure 3 This is a schematic diagram of the inner tube cross-section structure of the high-temperature frozen soil temperature gradient distribution detection device of the present invention;

[0026] Figure 4 This is a schematic diagram of the outer tube cross-section structure of the high-temperature frozen soil temperature gradient distribution detection device of the present invention;

[0027] Figure 5 The high temperature frozen soil temperature gradient distribution detection device of the present invention Figure 3 The enlarged structural diagram at A in the middle;

[0028] Figure 6 The high temperature frozen soil temperature gradient distribution detection device of the present invention Figure 4 The enlarged structural diagram at B in the middle;

[0029] Figure 7 It is a schematic diagram of the structure of the sheath of the high-temperature frozen soil temperature gradient distribution detection device of the present invention when viewed from above;

[0030] Figure 8It is a schematic diagram of the side view structure of the sheath of the high-temperature frozen soil temperature gradient distribution detection device of the present invention.

[0031] Among them: 1. outer tube; 2. first air vent; 3. connector; 4. motor cavity; 5. ventilation cavity; 6. through hole; 7. filter; 8. top plate; 9. clamping plate; 10. push rod; 11. retaining ring; 12. damper; 13. fixing seat; 14. spring; 15. inner tube; 16. second air vent; 17. detection cavity; 18. mounting rod; 19. temperature sensor; 20. driving motor; 21. shaft; 22. spiral blade; 23. protective cover; 24. mud discharge hole. DETAILED DESCRIPTION

[0032] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present invention.

[0033] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the present invention provides a high-temperature frozen soil temperature gradient distribution detection device and detection method, comprising an outer tube 1, a first air vent 2 is provided on the side wall of the outer tube 1, a connector 3 is provided at the middle of the top of the outer tube 1, a motor cavity 4 is provided on the inner side of the bottom of the outer tube 1, a ventilation cavity 5 is provided on the inner side of the middle section of the outer tube 1, and one side of the ventilation cavity 5 is connected with a through hole 6, a filter screen 7 is provided on the inner wall of the outer tube 1, a top plate 8 is distributed on one side of the outer tube 1, and a clamping plate 9 is provided on the side of the top plate 8 close to the outer tube 1, a mandrel 10 passes through the inner side of the through hole 6, and a retaining ring 11 is connected to one end of the mandrel 10, a damper 12 is connected to the end of the retaining ring 11 away from the mandrel 10, and a fixing seat 13 is connected to the other end of the damper 12, a spring 14 is sleeved on the outer surface of the damper 12, and a detection structure is provided on the inner side of the ventilation cavity 5;

[0034] When in use, the entire outer tube 1 is input into the inner side of the high-temperature frozen soil under the rotation of the spiral blade 22. At this time, the control device is electrically connected to the connector 3 by using a wire in advance, so that the control device can be used to control the operation of the drive motor 20 and other structures in the detection device, and provide power for the operation of the temperature sensor 19. Then, the temperature in the high-temperature frozen soil will be input into the inner side of the inner tube 15, and then the multiple temperature sensors 19 arranged in the inner tube 15 can be used to detect and process the temperatures at different levels.

[0035] As a further implementation of this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the side wall of the outer tube 1 is provided with a first air vent 2, a connector 3 is provided at the middle of the top of the outer tube 1, a motor cavity 4 is provided on the inner side of the bottom of the outer tube 1, a ventilation cavity 5 is provided on the inner side of the middle section of the outer tube 1, and one side of the ventilation cavity 5 is connected with a through hole 6, the through holes 6 are equidistantly distributed along the surface of the outer tube 1, and the inner diameter of the through holes 6 is matched with the outer diameter of the top rod 10, the inner wall of the outer tube 1 is provided with a filter screen 7, a top plate 8 is distributed on one side of the outer tube 1, and a side of the top plate 8 close to the outer tube 1 is provided with a filter screen 7. A card plate 9 is arranged, and the top plate 8 is slidably connected with the outer tube 1 through the card plate 9, and the top plate 8 is equidistantly distributed along the center point of the outer tube 1, and a top rod 10 is passed through the inner side of the through hole 6, and one end of the top rod 10 is connected to a retaining ring 11, and the top rod 10 is slidably connected with the outer tube 1 through the retaining ring 11, and the top rod 10 is symmetrically distributed along the vertical center line of the inner tube 15, and the end of the retaining ring 11 away from the top rod 10 is connected to a damper 12, and the other end of the damper 12 is connected to a fixing seat 13, and the outer side of the damper 12 is connected to the outer side of the damper 12. The surface is sleeved with a spring 14, and a detection structure is arranged on the inner side of the ventilation cavity 5; the detection structure comprises an inner tube 15 distributed in the inner cavity of the outer tube 1, and a second vent hole 16 is opened on the side wall of the inner tube 15, and the second vent hole 16 is evenly distributed along the outer surface of the inner tube 15, and the second vent hole 16 is connected with the detection cavity 17, and the inner cavity of the inner tube 15 is provided with a detection cavity 17, and the inner side of the detection cavity 17 is penetrated by a mounting rod 18, and the detection cavity 17 is evenly distributed on the inner side of the inner tube 15, and the detection cavity 17 is connected by a mounting rod 18. The second air hole 16 is connected to the ventilation cavity 5, the mounting rod 18 passes through the detection cavity 17 and is connected to the connector 3, and the temperature sensor 19 is symmetrically distributed along the vertical center line of the mounting rod 18. The temperature sensor 19 is installed on the outer surface of the mounting rod 18. The mounting rod 18 is a hollow structure, and holes are opened on the surface of the mounting rod 18. At the same time, the top of the mounting rod 18 is also opened with air for air circulation, which is convenient for subsequent air circulation and better detection and processing of the temperature in the high-temperature frozen soil;

[0036] When the outer tube 1 is inserted into the high-temperature frozen soil, since the structure of the outer tube 1 itself is made of heat-conducting material, the air can be input into the inner side of the ventilation cavity 5 opened on the inner side of the outer tube 1 by cooperating with the multiple first air holes 2 evenly distributed on the surface of the outer tube 1. At this time, since the ventilation cavity 5 and the detection cavity 17 are connected through the second air holes 16, the air input into the inner side of the ventilation cavity 5 is input into the inner side of the detection cavity 17 under the action of the second air holes 16. At this time, since the mounting rod 18 is electrically connected to the external control device through the connector 3, the temperature sensor 19 is powered on, and then the temperature detection processing of different layers in the high-temperature frozen soil can be performed by using the multiple temperature sensors 19, and the data obtained by the detection will be transmitted to the control device through the data line set on the inner side of the mounting rod 18. Since partitions are provided between the multiple detection cavities 17, the temperature gradient distribution detection processing of the high-temperature frozen soil can be performed by using the multiple detection cavities 17 at different positions, and the overall practicality is higher. At the same time, when the outer tube 1 is input into During the process of high-temperature frozen soil, the top plate 8 will move laterally under the action of the force exerted by the soil. At this time, the top plate 8 moves laterally along the side wall of the outer tube 1 through the clamping plate 9, and then the top plate 8 laterally squeezes the top rod 10 distributed on one side, thereby realizing the lateral movement of the top rod 10. At this time, the damper 12 will be deformed under the lateral action of the top rod 10. At this time, the deformation of the damper 12 will drive the spring 14 to deform accordingly, and then the reverse force generated by the deformation of the damper 12 and the spring 14 can be combined to apply a reverse thrust to the top rod 10. At this time, the top rod 10 pushes the top plate 8 in the opposite direction, and then a plurality of top plates 8 equidistantly distributed along the center point of the outer tube 1 are used to support the high-temperature frozen soil to prevent the soil from collapsing, affecting the environment or causing damage to the entire detection device. The setting of the retaining ring 11 can limit the lateral movement of the top rod 10, and the filter screen 7 set on the inner wall of the outer tube 1 can effectively prevent the soil from penetrating into the inner side of the outer tube 1, causing the internal structure of the outer tube 1 to be blocked, affecting the subsequent normal work;

[0037] As a further implementation of this embodiment, Figure 1 , Figure 7 and Figure 8 As shown, as a preferred technical solution of the present invention, the inner cavity of the motor cavity 4 is equipped with a driving motor 20, and the output end of the driving motor 20 is connected to a shaft 21, the outer surface of the shaft 21 is sleeved with a spiral leaf 22, and a protective sleeve 23 is distributed on the outer side of the spiral leaf 22, and a mud discharge hole 24 is opened at the top of the protective sleeve 23, and the mud discharge holes 24 are equidistantly distributed along the center point of the protective sleeve 23, and the mud discharge holes 24 and the protective sleeve 23 form an integrated structure;

[0038] First, the driving motor 20 is used to rotate the shaft 21 connected to its output end, and the rotation of the shaft 21 drives the spiral blade 22 installed on its outer surface to rotate accordingly. At this time, the rotation of the spiral blade 22 cooperates with the protective sleeve 23 sleeved on the outer side to loosen the high-temperature frozen soil, and then under the rotation of the spiral blade 22, part of the soil will be discharged through the mud discharge hole 24, which is convenient for the subsequent input of the outer tube 1 into the inner side of the soil, and is convenient for the subsequent temperature gradient distribution detection and processing of the high-temperature frozen soil;

[0039] Working principle: When in use, firstly, the driving motor 20 is used to rotate the shaft 21 connected to its output end, and the rotation of the shaft 21 is used to drive the spiral blade 22 installed on its outer surface to rotate accordingly. At this time, the rotation of the spiral blade 22 cooperates with the protective sleeve 23 set on its outer side to loosen the high-temperature frozen soil, and then under the rotation of the spiral blade 22, part of the soil will be discharged through the mud discharge hole 24, which is convenient for the subsequent input of the outer tube 1 into the inner side of the soil, and the subsequent temperature gradient distribution detection and processing of the high-temperature frozen soil. When the outer tube 1 is deeply inserted into the high-temperature frozen soil, since the structure of the outer tube 1 itself is made of heat-conducting material, In conjunction with the multiple first air holes 2 equidistantly distributed on the surface of the outer tube 1, air can be input into the inner side of the ventilation cavity 5 opened on the inner side of the outer tube 1. At this time, since the ventilation cavity 5 is connected to the detection cavity 17 through the second air holes 16, the air input into the inner side of the ventilation cavity 5 is input into the inner side of the detection cavity 17 under the action of the second air holes 16. At this time, since the mounting rod 18 is electrically connected to the external control device through the connector 3, the temperature sensor 19 is powered on, and then the temperature of different layers in the high-temperature frozen soil can be detected by using the multiple temperature sensors 19. The data obtained by the detection will then be displayed on the display screen through the temperature sensor 19 provided on the inner side of the mounting rod 18. The data lines are transmitted to the control device, and since partitions are provided between the multiple detection chambers 17, the temperature gradient distribution detection and processing can be performed on the high-temperature frozen soil by using the detection chambers 17 at different positions, and the overall practicality is higher. At the same time, when the outer tube 1 is input into the high-temperature frozen soil, the top plate 8 will move laterally under the action of the force exerted by the soil. At this time, the top plate 8 moves laterally along the side wall of the outer tube 1 through the card plate 9, and then the top plate 8 laterally squeezes the top rod 10 distributed on one side thereof, thereby realizing the lateral movement of the top rod 10. At this time, the damper 12 will be deformed under the lateral action of the top rod 10, and the damper 12 will be deformed. The deformation will cause the spring 14 to deform accordingly, and then the reverse force generated by the deformation of the damper 12 and the spring 14 can apply a reverse thrust to the top rod 10. At this time, the top rod 10 pushes the top plate 8 in the reverse direction, and then uses multiple top plates 8 equidistantly distributed along the center point of the outer tube 1 to support the high-temperature frozen soil to prevent soil collapse, affect the environment or cause damage to the entire detection device. The setting of the retaining ring 11 can limit the lateral movement of the top rod 10, and the filter screen 7 set on the inner wall of the outer tube 1 can effectively prevent soil from penetrating into the inner side of the outer tube 1, causing the internal structure of the outer tube 1 to be blocked, affecting the subsequent normal work.

[0040] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A high-temperature frozen soil temperature gradient distribution detection device, comprising an outer tube (1), characterized in that: The side wall of the outer tube (1) is provided with a first air vent (2), a connector (3) is provided at the middle of the top of the outer tube (1), a motor cavity (4) is provided on the inner side of the bottom of the outer tube (1), a ventilation cavity (5) is provided on the inner side of the middle section of the outer tube (1), and one side of the ventilation cavity (5) is connected to a through hole (6), a filter screen (7) is provided on the inner side wall of the outer tube (1), a top plate (8) is provided on one side of the outer tube (1), and the top plate (8) is close to the A clamping plate (9) is provided on one side of the outer tube (1), a push rod (10) passes through the inner side of the through hole (6), one end of the push rod (10) is connected to a retaining ring (11), an end of the retaining ring (11) away from the push rod (10) is connected to a damper (12), and the other end of the damper (12) is connected to a fixing seat (13), a spring (14) is sleeved on the outer surface of the damper (12), and a detection structure is provided on the inner side of the ventilation cavity (5); The detection structure comprises an inner tube (15) distributed in the inner cavity of the outer tube (1), and a second vent hole (16) is provided on the side wall of the inner tube (15), a detection cavity (17) is provided in the inner cavity of the inner tube (15), and a mounting rod (18) penetrates the inner side of the detection cavity (17), and a temperature sensor (19) is installed on the outer surface of the mounting rod (18).

2. A high-temperature frozen soil temperature gradient distribution detection device according to claim 1, characterized in that: A drive motor (20) is installed in the inner cavity of the motor cavity (4), and the output end of the drive motor (20) is connected to a shaft (21), the outer surface of the shaft (21) is sleeved with spiral leaves (22), and a protective sleeve (23) is distributed outside the spiral leaves (22), and a mud discharge hole (24) is opened at the top of the protective sleeve (23).

3. A high-temperature frozen soil temperature gradient distribution detection device according to claim 1, characterized in that: The through holes (6) are distributed at equal intervals along the surface of the outer tube (1), and the inner diameter of the through holes (6) is matched to the outer diameter of the push rod (10).

4. A high-temperature frozen soil temperature gradient distribution detection device according to claim 1, characterized in that: The top plate (8) is slidably connected to the outer tube (1) via the clamping plate (9), and the top plates (8) are equidistantly distributed along the center point of the outer tube (1).

5. The high-temperature frozen soil temperature gradient distribution detection device according to claim 1, characterized in that: The push rod (10) is slidably connected to the outer tube (1) via the retaining ring (11), and the push rod (10) is symmetrically distributed along the vertical center line of the inner tube (15).

6. A high-temperature frozen soil temperature gradient distribution detection device according to claim 1, characterized in that: The second air holes (16) are distributed at equal intervals along the outer surface of the inner tube (15), and the second air holes (16) are connected to the detection cavity (17).

7. The high-temperature frozen soil temperature gradient distribution detection device according to claim 1, characterized in that: The detection chambers (17) are equidistantly distributed on the inner side of the inner tube (15), and the detection chambers (17) are connected to the ventilation chamber (5) via the second air holes (16).

8. A high-temperature frozen soil temperature gradient distribution detection device according to claim 2, characterized in that: The mounting rod (18) passes through the detection cavity (17) and is connected to the connector (3), and the temperature sensors (19) are symmetrically distributed along the vertical center line of the mounting rod (18).

9. A high-temperature frozen soil temperature gradient distribution detection device according to claim 1, characterized in that: The mud discharge holes (24) are distributed at equal distances along the center point of the protective sleeve (23), and the mud discharge holes (24) and the protective sleeve (23) form an integrated structure.

10. A method for using a high-temperature frozen soil temperature gradient distribution detection device, comprising a high-temperature frozen soil temperature gradient distribution detection device according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: First, the entire device is placed at a position to be detected, and then the motor (20) is operated to rotate the shaft (21) connected to its output end. At this time, the rotation of the shaft (21) drives the spiral blade (22) to rotate, and the protective sleeve (23) provided can be used to loosen the soil, and the loosened soil will be discharged through the mud discharge hole (24). Then, the rotation of the spiral blade (22) can cause the entire outer tube (1) to be input into the high-temperature frozen soil, so as to facilitate the subsequent gradient distribution detection of the high-temperature frozen soil; Step 2: When the outer tube (1) is input into the inner side of the high-temperature frozen soil, the top plate (8) will move laterally under the action of the soil pressure on both sides. At this time, the top plate (8) will squeeze the top rod (10) laterally along the side wall of the outer tube (1), thereby realizing the lateral movement of the top rod (10). When the top rod (10) moves laterally, it will squeeze the damper (12), thereby realizing the deformation of the damper (12). At the same time, when the damper (12) is deformed, it will drive the spring (14) to deform accordingly. Then, the reverse force generated by the deformation of the damper (12) and the spring (14) is combined to apply a reverse thrust to the top rod (10). At this time, the top rod (10) pushes the top plate (8) in the reverse direction, and then uses a plurality of top plates (8) equidistantly distributed along the center point of the outer tube (1) to support the soil, thereby preventing the high-temperature frozen soil from collapsing during the subsequent temperature detection process. Step three: When the outer tube (1) is completely input into the inner side of the high-temperature frozen soil, since the outer tube (1) is made of a heat-conducting material, the first air vent (2) provided in combination can facilitate subsequent air circulation into the inner side of the ventilation cavity (5) opened on the inner side of the outer tube (1), and then the air is respectively input into the inner sides of a plurality of different detection cavities (17) through the second air vent (16), and then the temperature sensor (19) provided on the inner side of the detection cavity (17) is used to detect and process the temperature of the frozen soil at different levels.

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