A temperature sensor for underground monitoring and a method of installing the same

Abstract

This invention provides a temperature sensor for underground monitoring, comprising a temperature sensor and a circular plate. A fixing assembly is mounted on the circular plate, including a support plate and a screw pin. A tightening assembly is mounted on the support plate, including a worm gear and a first motor. A telescopic assembly is mounted inside the screw pin, including a second motor and a sleeve. A cleaning assembly is mounted at the bottom of the circular plate, including a retaining sleeve and an inner cavity. This temperature sensor for underground monitoring and its installation method can prevent organic fertilizer particles from disintegrating due to internal air expansion, ensuring the integrity of the organic fertilizer particles, preventing organic fertilizer debris, and preventing organic fertilizer from sticking together during storage. This facilitates uniform fertilization operations and allows the organic fertilizer to absorb debris, odors, and water vapor, reducing water vapor consumption and ensuring a safe air environment. It is suitable for real-time monitoring of underground temperatures.

Description

Technical Field

[0001] This invention relates to the field of temperature sensor equipment technology for underground monitoring, specifically a temperature sensor for underground monitoring and its installation method. Background Technology

[0002] To facilitate real-time monitoring of underground temperatures, underground temperature sensors are needed. Patent application CN202110416177.X discloses a high-precision temperature detection device and its mass production method suitable for mass production. Its voltage regulator circuit output is connected to a first resistor to form a constant current source. The inverting input of a first operational amplifier is connected to the constant current source output, and the non-inverting input of the first operational amplifier is connected to an input reference voltage through a second resistor. A Pt1000 platinum resistance thermometer is connected to the output and inverting output of the first operational amplifier to form negative feedback. The reference voltage is obtained by dividing the voltage output of the voltage regulator circuit through a first and second voltage divider resistor, and then connecting to a voltage follower composed of a third operational amplifier. This meets the requirements for high precision while reducing component costs. It eliminates the need for manual adjustment and calibration, adapting to the requirements of mass production, greatly improving production efficiency. It is also extremely low-cost and very convenient for production verification. Patent application CN201910432076.4 further illustrates this. A temperature detection device is disclosed, in which an optical fiber sensor is disposed above the container housing to transmit the deformation signal of a shape memory metal. The thermal expansion and contraction of mercury causes deformation of the shape memory metal, and the optical fiber sensor transmits the deformation signal of the shape memory metal, thereby shortening the temperature detection time and improving efficiency. Moreover, it is not affected by external interference such as electromagnetic waves, and the measured values ​​are more accurate and reliable. According to the disclosed technical solution, existing underground temperature sensor equipment has several drawbacks. First, the installation space underground is small, making it impossible to use a large electric wrench, which is inconvenient for tightening the wrench and thus hindering quick installation and fixing. Second, when the mounting base becomes loose, the sensor mounting mechanism may also become loose, which is not conducive to ensuring the installation firmness of the temperature sensor. Third, when impurities adhere to the surface of the temperature sensor, it can easily cause abnormal temperature readings, which is not conducive to ensuring the accuracy and sensitivity of underground temperature monitoring. Summary of the Invention

[0003] To address the shortcomings of existing technologies, the present invention aims to provide a temperature sensor for underground monitoring and its installation method, thereby solving the problems mentioned in the background section. The present invention has a novel structure, diverse functions, and is suitable for real-time monitoring of underground temperatures.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a temperature sensor for underground monitoring, comprising a temperature sensor and a circular plate. A fixing assembly is mounted on the circular plate, the fixing assembly including a support plate and a screw pin. A tightening assembly is mounted on the support plate, the tightening assembly including a worm gear and a first motor. A telescopic assembly is mounted on the inner side of the screw pin, the telescopic assembly including a second motor and a rib sleeve. A cleaning assembly is mounted on the bottom of the circular plate, the cleaning assembly including a retaining sleeve and an inner cavity. A protective assembly is mounted on the retaining sleeve, the protective assembly including a filter plate and a retaining pin. A locking assembly is mounted on the screw pin, the locking assembly including a pin and a first spring. A pulling assembly is mounted on the circular plate, the pulling assembly including a side sleeve and a hinged plate. A blocking assembly is mounted on the pin, the blocking assembly including a stop groove and a stop bar.

[0005] Furthermore, the support plate is sleeved on the outer side of the circular plate, and an annular groove is formed on the inner side of the support plate. A worm gear is integrally formed on the outer side of the circular plate. The worm is installed on the inner side of the support plate through a rotating shaft. The motor is welded to the inner side of the support plate. One end of the worm is keyed to the output shaft of the motor. The worm meshes with the worm wheel.

[0006] Furthermore, the screw pin is integrally formed on the top of the circular plate, and a groove is formed on the inner side of the screw pin. The bottom end of the rib sleeve is welded to the top of the temperature sensor, and the top end of the rib sleeve extends to the inner side of the groove. The second motor is bolted to the inner wall of the top end of the groove. A lead screw is welded to the output shaft of the second motor, and the bottom end of the lead screw is threaded to the inner side of the rib sleeve. A pointed cone is welded to the top of the support plate.

[0007] Furthermore, a groove is provided at the top of the screw, the pin is engaged inside the groove, one end of the pin is connected to the inner wall of the other end of the groove through a spring, and the other end of the pin passes through the spring and the groove and extends to the outer side of the screw.

[0008] Furthermore, the side sleeve is welded to the top of the circular plate, the outer side of the bottom of the flap is clipped onto the inner wall of the top of the side sleeve, the bottom of the flap is connected to the top of the circular plate by a second spring, a sealing wax is adhered to the inner wall of the top of the side sleeve, the sealing wax is adhered to the outer side of the flap, and the top of the flap extends to the outer side of the side sleeve.

[0009] Furthermore, the groove is formed inside the screw pin, and a stop is formed at the bottom of one end of the pin. The bottom end of the stop rod is locked on the inner wall of the top of the groove, and the top end of the stop rod is locked inside the stop. A pull wire is connected to the bottom end of the stop rod. Through holes are formed on the inner sides of both the screw pin and the circular plate. One end of the pull wire passes through the through hole and the side sleeve in sequence and is fixed to the bottom of the hinged plate.

[0010] Furthermore, the ferrule is welded to the bottom of the circular plate, the inner diameter of the ferrule is equal to the outer diameter of the temperature sensor, and a sealing ring is welded to the top of the temperature sensor, the outer diameter of the sealing ring being equal to the inner diameter of the ferrule.

[0011] Furthermore, the inner cavity is located on the inner side of the circular plate, and the inner cavity is connected to the sleeve through a through-hole. The bottom of the sleeve is provided with a blowhole, and the inner side of the sleeve is provided with a connecting pipe. The blowhole is connected to the inner cavity through the connecting pipe.

[0012] Furthermore, the outer side of the filter plate is clamped onto the inner wall of the sleeve, and a groove is provided on the inner side of the filter plate. One end of the locking pin is clamped on the inner side of the groove, and the other end of the locking pin passes through the groove and extends to the inner side of the blowhole. One end of the locking pin is connected to the inner wall of the groove by a spring.

[0013] A method for installing a temperature sensor for underground monitoring, characterized in that:

[0014] Step 1: Quickly insert the tip of the screw into the underground detection point, and use tools to fix the support plate to prevent it from rotating.

[0015] Step 2: Power motor 1 with a portable power bank. Motor 1 drives worm gear to rotate through worm. Worm gear drives circular plate to rotate inside support plate, which in turn drives screw to drill into the underground detection point by screwing.

[0016] Step 3: The screw pin drives the circular plate and the support plate to move towards the underground detection point until the pointed cone on the support plate inserts into the underground detection point, and the flap is squeezed into the inside of the side sleeve by the underground detection point.

[0017] Step 4: Connect motor 2 and motor 1 to power. Motor 2 pushes the prism sleeve through the lead screw. The prism sleeve drives the temperature sensor to move from the inside of the sleeve to the outside until the temperature sensor moves to the appropriate position.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] 1. This temperature sensor for underground monitoring and its installation method involve quickly inserting the tip of a screw into the underground detection point. A support plate is then fixed using a tool to prevent rotation. A portable power supply powers motor one, which drives a worm gear to rotate a worm wheel. The worm wheel rotates a circular plate inside the support plate, causing the screw to be driven into the underground detection point through a screwing motion. The screw moves the circular plate and support plate towards the detection point until the pointed tip on the support plate is inserted, securing the support plate. The support plate is locked to the worm wheel by the worm gear, and the circular plate further secures the screw, preventing it from rotating in the opposite direction due to vibration or tension, ensuring a secure installation. Motor two is then connected to motor one. Motor two pushes a prism sleeve via a lead screw. The prism sleeve moves the temperature sensor from the inside of the sleeve outwards until it reaches the appropriate position. This allows for temperature monitoring at different locations, improving the effectiveness of underground temperature monitoring and ensuring flexibility in monitoring underground temperatures.

[0020] 2. In use, when the temperature sensor for underground monitoring and its installation method are engaged, the circular plate driven by the screw pin is inserted into the outer side of the underground detection point, causing the flap to be squeezed into the inner side of the side sleeve. This causes the flap to lose its sealing effect. When the underground detection point deforms due to a large external force, causing the screw pin to loosen from the underground detection point, the second spring pushes the flap. The flap moves outward from the inner side of the side sleeve. The flap pulls the stop bar through the pull line. The stop bar moves downward from the inner side of the pin to the inner side of the retaining groove. After the pin loses the locking of the stop bar, it is pulled outward by the first spring, causing the insertion rod to be inserted into the inner side of the underground detection point through its tip. This effectively locks the screw pin, preventing it from falling off and ensuring the secure installation of the temperature sensor.

[0021] 3. In use, the temperature sensor for underground monitoring and its installation method involve connecting a remote control switch to an external motor. After the temperature sensor has been operating for a period of time, allowing some impurities to adhere to it, the motor is then turned on in reverse via the remote control switch. The motor pushes the sleeve towards the inside of the screw pin via a lead screw, thereby moving the temperature sensor towards the inside of the retaining sleeve. The temperature sensor presses against the filter plate, and the retaining pin on the filter plate is pressed against the inner wall of the nozzle, causing the retaining pin to compress the spring and move towards the inside of the filter plate. The temperature sensor is then sealed to the inner wall of the retaining sleeve by a sealing ring. This process compresses the air inside the ferrule through the inlet to the inner side of the cavity, scraping away impurities from the side of the temperature sensor through the inner wall of the ferrule until the bottom of the temperature sensor moves to the top of the blowhole. The compressed air inside the cavity is then introduced into the blowhole through the connecting pipe, and high-pressure air is used to blow away impurities from the bottom of the temperature sensor and the bottom of the ferrule. This allows for regular cleaning of the temperature sensor, preventing the surface of the temperature sensor from being affected by excessive impurities, thus ensuring the accuracy and sensitivity of temperature monitoring and guaranteeing the accuracy and sensitivity of underground temperature monitoring. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a temperature sensor for underground monitoring according to the present invention;

[0023] Figure 2 This is a cross-sectional view of a temperature sensor for underground monitoring according to the present invention;

[0024] Figure 3 This is a schematic diagram of the housing of a temperature sensor for underground monitoring according to the present invention;

[0025] Figure 4 This is a schematic diagram of the structure of a circular plate for underground monitoring according to the present invention;

[0026] Figure 5 This is a top sectional view of a support plate for a temperature sensor used for underground monitoring according to the present invention.

[0027] Figure 6 This is a schematic diagram of the side sleeve of a temperature sensor for underground monitoring according to the present invention;

[0028] Figure 7 This is a schematic diagram of the ferrule for a temperature sensor used in underground monitoring according to the present invention;

[0029] In the diagram: 1. Temperature sensor; 2. Support plate; 3. Circular plate; 4. Screw pin; 5. Worm gear; 6. Worm; 7. Motor 1; 8. Motor 2; 9. Sleeve; 10. Lead screw; 11. Slide groove; 12. Pin; 13. Spring 1; 14. Stop groove; 15. Stop bar; 16. Pull wire; 17. Side sleeve; 18. Visible plate; 19. Spring 2; 20. Sealing wax; 21. Flanged sleeve; 22. Sealing ring; 23. Inner cavity; 24. Blowout; 25. Connecting pipe; 26. Filter plate; 27. Locking pin; 28. Spring 3; 29. ​​Cone. Detailed Implementation

[0030] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0031] Please see Figures 1 to 7This invention provides a technical solution: a temperature sensor for underground monitoring, comprising a temperature sensor 1 and a circular plate 3. A fixing assembly is mounted on the circular plate 3, the fixing assembly including a support plate 2 and a screw pin 4. A tightening assembly is mounted on the support plate 2, the tightening assembly including a worm gear 6 and a motor 7. A telescopic assembly is mounted on the inner side of the screw pin 4, the telescopic assembly including a motor 8 and a sleeve 9. A cleaning assembly is mounted on the bottom of the circular plate 3, the cleaning assembly including a retaining sleeve 21 and an inner cavity 23. A protective assembly is mounted on the retaining sleeve 21, the protective assembly including a filter plate 26 and a retaining pin 27. A locking assembly is mounted on the screw pin 4, the locking assembly including a pin 12 and a spring 13. A pulling assembly is installed on the circular plate 3, the pulling assembly including a side sleeve 17 and a hinged plate 18. A blocking assembly is installed on the pin 12, the blocking assembly including a stop groove 14 and a stop rod 15. The support plate 2 is sleeved on the outer side of the circular plate 3, and an annular groove is formed on the inner side of the support plate 2. A worm gear 5 is integrally formed on the outer side of the circular plate 3. The worm 6 is installed on the inner side of the support plate 2 via a rotating shaft. The motor 7 is welded to the inner side of the support plate 2. One end of the worm 6 is keyed to the output shaft of the motor 7. The worm 6 meshes with the worm gear 5. A screw pin 4 is integrally formed on the top of the circular plate 3, and a rib groove is formed on the inner side of the screw pin 4. The bottom end of the rib sleeve 9 is welded to the top of the temperature sensor 1. The top of the prism sleeve 9 extends to the inner side of the prism groove. The second motor 8 is bolted to the inner wall of the top of the prism groove. A lead screw 10 is welded to the output shaft of the second motor 8. The bottom end of the lead screw 10 is threaded to the inner side of the prism sleeve 9. A pointed cone 29 is welded to the top of the support plate 2. In use, the tip of the screw pin 4 is quickly inserted into the underground detection point. The support plate 2 is fixed with a tool to prevent it from rotating. A portable power supply is used to power the first motor 7. The first motor 7 drives the worm wheel 5 to rotate through the worm gear 6. The worm wheel 5 drives the circular plate 3 to rotate inside the support plate 2, thereby driving the screw pin 4 to drill into the underground detection point by screwing. The screw pin 4 drives the circular plate 3 and the support plate 2. The device moves towards the underground detection point until the pointed cone 29 on the support plate 2 is inserted into the underground detection point. The pointed cone 29 can be used to fix the support plate 2. The support plate 2 locks the worm wheel 5 through the worm gear 6, and then fixes the screw pin 4 through the round plate 3 to prevent the screw pin 4 from rotating in the opposite direction due to factors such as vibration and tension, thus ensuring the installation is firm. The second motor 8 and the first motor 7 are powered on. The second motor 8 pushes the prism sleeve 9 through the lead screw 10. The prism sleeve 9 drives the temperature sensor 1 to move from the inside of the clamp 21 to the outside until the temperature sensor 1 moves to the appropriate position. This allows for temperature monitoring at different locations, thereby improving the effect of underground temperature monitoring and ensuring the flexibility of underground temperature monitoring.

[0032] In this embodiment, the top end of the screw pin 4 has a groove 11, and the pin 12 is engaged inside the groove 11. One end of the pin 12 is connected to the inner wall of the other end of the groove 11 via a spring 13. The other end of the pin 12 passes through the spring 13 and the groove 11 and extends to the outer side of the screw pin 4. The side sleeve 17 is welded to the top of the circular plate 3. The outer side of the bottom of the hinge 18 is engaged on the inner wall of the top of the side sleeve 17. The bottom of the hinge 18 is engaged with the inner wall of the top of the side sleeve 17 via a spring 13. 9 is connected to the top of the circular plate 3. A sealing wax 20 is adhered to the inner wall of the top of the side sleeve 17. The sealing wax 20 is adhered to the outer side of the movable plate 18. The top of the movable plate 18 extends to the outer side of the side sleeve 17. The stop groove 14 is opened inside the screw pin 4. A stop is opened at the bottom of one end of the pin 12. The bottom end of the stop rod 15 is engaged with the inner wall of the top of the stop groove 14, and the top end of the stop rod 15 is engaged with the inner side of the stop. A pull wire 16 is connected to the bottom end of the stop rod 15. Both the screw pin 4 and the circular plate 3 have through holes on their inner sides. One end of the pull wire 16 passes through the through hole and the side sleeve 17 in sequence and is fixed to the bottom of the flap 18. When the screw pin 4 drives the circular plate 3 to engage with the outer side of the underground detection point, the flap 18 is squeezed to the inner side of the side sleeve 17, thereby causing the flap 18 to lose the fixing effect of the sealing wax 20. When the underground detection point deforms due to a large external force, causing the screw pin 4 to loosen from the underground detection point, the spring 19 will then... Pushing the flap 18 causes it to move outward from the inside of the side sleeve 17. The flap 18 pulls the stop bar 15 via the pull wire 16. The stop bar 15 moves downward from the inside of the pin 12 to the inside of the groove 14. This causes the pin 12 to be pulled outward by the spring 13 after it loses the lock of the stop bar 15. This allows the pin 12 to be inserted into the inside of the underground detection point through its tip, thereby effectively locking the screw pin 4 and preventing the screw pin 4 from falling off, ensuring the secure installation of the temperature sensor 1.

[0033] In this embodiment, the sleeve 21 is welded to the bottom of the circular plate 3. The inner diameter of the sleeve 21 is equal to the outer diameter of the temperature sensor 1. A sealing ring 22 is welded to the top of the temperature sensor 1. The outer diameter of the sealing ring 22 is equal to the inner diameter of the sleeve 21. The inner cavity 23 is opened on the inner side of the circular plate 3 and is connected to the sleeve 21 through a through-hole. A blow-out port 24 is opened at the bottom of the sleeve 21, and a connecting pipe 25 is opened on the inner side of the sleeve 21. The blow-out port 24 is connected to the inner cavity 23 through the connecting pipe 25. The outer side of the filter plate 26 is secured to the inner wall of the sleeve 21. A slot is formed on the inner side of the filter plate 26. One end of the locking pin 27 is secured to the inner side of the slot, and the other end of the locking pin 27 passes through the slot and extends to the inner side of the nozzle 24. One end of the locking pin 27 is connected to the inner wall of the slot via a spring 28. During use, a remote control switch is connected to the motor 28. After the temperature sensor 1 has been operating for a period of time, allowing certain impurities to adhere to it, the motor 28 is turned on in reverse via the remote control switch. 8. Motor 2 pushes sleeve 9 towards the inside of screw pin 4 via lead screw 10, thereby driving temperature sensor 1 towards the inside of clamp 21. Temperature sensor 1 presses filter plate 26, and clamp pin 27 on filter plate 26 is pressed by the inner wall of nozzle 24, causing clamp pin 27 to compress spring 3 28 and move to the inside of filter plate 26. Temperature sensor 1 is sealed to the inner wall of clamp 21 by sealing ring 22, so that air in clamp 21 is compressed into the inner cavity 23 through the port, and the temperature is transmitted through the inner wall of clamp 21. The impurities on the side of the temperature sensor 1 are scraped off until the bottom of the temperature sensor 1 moves to the top of the blowhole 24. The compressed air in the inner cavity 23 is introduced into the blowhole 24 through the connecting pipe 25, and the high-pressure air is used to blow away the impurities at the bottom of the temperature sensor 1 and the bottom of the sleeve 21. This allows for regular cleaning of the temperature sensor 1, preventing the surface of the temperature sensor 1 from being affected by a large amount of impurities, thus ensuring the accuracy and sensitivity of its temperature monitoring and guaranteeing the accuracy and sensitivity of underground temperature monitoring.

[0034] A method for installing a temperature sensor for underground monitoring, characterized in that:

[0035] Step 1: Quickly insert the tip of the screw into the underground detection point, and use tools to fix the support plate to prevent it from rotating.

[0036] Step 2: Power motor 1 with a portable power bank. Motor 1 drives worm gear to rotate through worm. Worm gear drives circular plate to rotate inside support plate, which in turn drives screw to drill into the underground detection point by screwing.

[0037] Step 3: The screw pin drives the circular plate and the support plate to move towards the underground detection point until the pointed cone on the support plate inserts into the underground detection point, and the flap is squeezed into the inside of the side sleeve by the underground detection point.

[0038] Step 4: Connect motor 2 and motor 1 to power. Motor 2 pushes the prism sleeve through the lead screw. The prism sleeve drives the temperature sensor to move from the inside of the sleeve to the outside until the temperature sensor moves to the appropriate position.

[0039] This temperature sensor for underground monitoring and its installation method provide power to all electrical equipment via an external power source. In use, the tip of the screw pin 4 is quickly inserted into the underground detection point. The support plate 2 is then fixed in place using a tool to prevent rotation. A portable power supply powers the motor 7, which in turn drives the worm wheel 5 via the worm gear 6. The worm wheel 5 drives the circular plate 3 to rotate inside the support plate 2, causing the screw pin 4 to be driven into the underground detection point through a screwing motion. The screw pin 4 moves the circular plate 3 and the support plate 2 towards the underground detection point until the pointed cone 29 on the support plate 2 is inserted into the underground detection point, allowing the pointed cone 29 to fix the support plate 2. The support plate 2 is locked by the worm gear 6 to the worm wheel 5, and the circular plate 3 then locks the screw pin into place. Pin 4 is used for fixing to prevent reverse rotation due to vibration, tension, or other factors, ensuring installation firmness. Motor 2 8 and Motor 1 7 are powered on. Motor 2 8 pushes the prism sleeve 9 via the lead screw 10. The prism sleeve 9 drives the temperature sensor 1 from the inside of the clamp 21 outwards until the temperature sensor 1 reaches the appropriate position, enabling temperature monitoring at different locations. This improves the effectiveness of underground temperature monitoring and ensures flexibility. When pin 4 drives the circular plate 3 to engage with the outer side of the underground detection point, the hinged plate 18 is squeezed to the inside of the side sleeve 17, causing the hinged plate 18 to lose the fixing effect of the sealing wax 20. When the underground detection point deforms due to significant external force, ... When the screw pin 4 becomes loose from the underground detection point, the spring 19 pushes the flap 18. The flap 18 moves outward from the inside of the side sleeve 17. The flap 18 pulls the stop bar 15 through the pull wire 16. The stop bar 15 moves downward from the inside of the pin 12 to the inside of the retaining groove 14. After the pin 12 loses the lock of the stop bar 15, it is pulled outward by the spring 13, so that the tip of the pin 12 is inserted into the inside of the underground detection point, thus effectively locking the screw pin 4 and preventing it from falling off, ensuring the installation firmness of the temperature sensor 1. After the temperature sensor 1 has been working for a period of time and some impurities have adhered to it, the motor 8 is turned on in reverse through the remote control switch. The motor 8 pushes the prism through the lead screw 10. The sleeve 9 moves inward toward the screw pin 4, thereby moving the temperature sensor 1 toward the inside of the sleeve 21. The temperature sensor 1 presses against the filter plate 26, and the retaining pin 27 on the filter plate 26 is pressed by the inner wall of the nozzle 24, causing the retaining pin 27 to compress the spring 28 and move to the inside of the filter plate 26. The temperature sensor 1 is sealed to the inner wall of the sleeve 21 by the sealing ring 22, so that the air in the sleeve 21 is compressed into the inner cavity 23 through the port, and the impurities on the side of the temperature sensor 1 are scraped off by the inner wall of the sleeve 21 until the bottom of the temperature sensor 1 moves to the top of the nozzle 24. The compressed air in the inner cavity 23 is introduced into the nozzle 24 through the connecting pipe 25, and the high-pressure air is used to blow away the impurities at the bottom of the temperature sensor 1 and the bottom of the sleeve 21.This allows for regular cleaning of temperature sensor 1, preventing impurities from affecting its accuracy and sensitivity in temperature monitoring and ensuring the accuracy and sensitivity of underground temperature monitoring.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0041] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A temperature sensor for underground monitoring, comprising a temperature sensor (1) and a circular plate (3), wherein a fixing assembly is mounted on the circular plate (3), the fixing assembly comprising a support plate (2) and a screw pin (4), characterized in that: A screwing assembly is installed on the support plate (2), the screwing assembly includes a worm gear (6) and a motor (7). A telescopic assembly is installed on the inner side of the screw pin (4), the telescopic assembly includes a motor (8) and a prism sleeve (9). A cleaning assembly is installed at the bottom of the circular plate (3), the cleaning assembly includes a retainer (21) and an inner cavity (23). A protective assembly is installed on the retainer (21), the protective assembly includes a filter plate (26) and a retaining pin (27). A locking assembly is installed on the screw pin (4), the locking assembly includes a pin (12) and a spring (13). A pulling assembly is installed on the circular plate (3), the pulling assembly includes a side sleeve (17) and a flap (18). A blocking assembly is installed on the pin (12), the blocking assembly includes a stop groove (14) and a stop bar (15).

2. A temperature sensor for underground monitoring according to claim 1, characterized in that: The support plate (2) is sleeved on the outer side of the circular plate (3). The inner side of the support plate (2) is provided with an annular groove. The outer side of the circular plate (3) is integrally formed with a worm gear (5). The worm (6) is installed on the inner side of the support plate (2) through a rotating shaft. The motor (7) is welded to the inner side of the support plate (2). One end of the worm (6) is keyed to the output shaft of the motor (7). The worm (6) meshes with the worm gear (5).

3. A temperature sensor for underground monitoring according to claim 2, characterized in that: The screw (4) is integrally formed on the top of the circular plate (3). The inner side of the screw (4) is provided with a rib groove. The bottom end of the rib sleeve (9) is welded to the top of the temperature sensor (1). The top end of the rib sleeve (9) extends to the inner side of the rib groove. The second motor (8) is installed on the inner wall of the top end of the rib groove by bolts. The output shaft of the second motor (8) is welded with a lead screw (10). The bottom end of the lead screw (10) is installed on the inner side of the rib sleeve (9) by threads. The top of the support plate (2) is welded with a pointed cone (29).

4. A temperature sensor for underground monitoring according to claim 1, characterized in that: The top of the screw (4) is provided with a groove (11), and the pin (12) is locked inside the groove (11). One end of the pin (12) is connected to the inner wall of the other end of the groove (11) through a spring (13), and the other end of the pin (12) passes through the spring (13) and the groove (11) and extends to the outer side of the screw (4).

5. A temperature sensor for underground monitoring according to claim 1, characterized in that: The side sleeve (17) is welded to the top of the circular plate (3). The outer side of the bottom of the flap (18) is stuck on the inner wall of the top of the side sleeve (17). The bottom of the flap (18) is connected to the top of the circular plate (3) by spring 2 (19). A sealing wax (20) is adhered to the inner wall of the top of the side sleeve (17). The sealing wax (20) is adhered to the outer side of the flap (18). The top of the flap (18) extends to the outer side of the side sleeve (17).

6. A temperature sensor for underground monitoring according to claim 5, characterized in that: The groove (14) is opened on the inner side of the screw (4). The bottom of one end of the pin (12) is provided with a stop. The bottom end of the stop rod (15) is stuck on the inner wall of the top of the groove (14). The top end of the stop rod (15) is stuck on the inner side of the stop. The bottom end of the stop rod (15) is connected to a pull wire (16). The inner sides of the screw (4) and the round plate (3) are provided with through holes. One end of the pull wire (16) passes through the through hole and the side sleeve (17) in sequence and is fixed to the bottom of the flap (18).

7. A temperature sensor for underground monitoring according to claim 1, characterized in that: The sleeve (21) is welded to the bottom of the circular plate (3). The inner diameter of the sleeve (21) is equal to the outer diameter of the temperature sensor (1). A sealing ring (22) is welded to the top of the temperature sensor (1). The outer diameter of the sealing ring (22) is equal to the inner diameter of the sleeve (21).

8. A temperature sensor for underground monitoring according to claim 1, characterized in that: The inner cavity (23) is located inside the circular plate (3). The inner cavity (23) is connected to the sleeve (21) through a through-hole. The bottom of the sleeve (21) is provided with a blowhole (24). The inner side of the sleeve (21) is provided with a connecting pipe (25). The blowhole (24) is connected to the inner cavity (23) through the connecting pipe (25).

9. A temperature sensor for underground monitoring according to claim 8, characterized in that: The outer side of the filter plate (26) is clamped on the inner wall of the sleeve (21). The inner side of the filter plate (26) is provided with a slot. One end of the locking pin (27) is clamped on the inner side of the slot. The other end of the locking pin (27) passes through the slot and extends to the inner side of the blowhole (24). One end of the locking pin (27) is connected to the inner wall of the slot through a spring (28).

10. A method for installing a temperature sensor for underground monitoring as described in claim 1, characterized in that: Step 1: Quickly insert the tip of the screw into the underground detection point, and use tools to fix the support plate to prevent it from rotating. Step 2: Power motor 1 with a portable power bank. Motor 1 drives worm gear to rotate through worm. Worm gear drives circular plate to rotate inside support plate, which in turn drives screw to drill into the underground detection point by screwing. Step 3: The screw pin drives the circular plate and the support plate to move towards the underground detection point until the pointed cone on the support plate inserts into the underground detection point, and the flap is squeezed into the inside of the side sleeve by the underground detection point. Step 4: Connect motor 2 and motor 1 to power. Motor 2 pushes the prism sleeve through the lead screw. The prism sleeve drives the temperature sensor to move from the inside of the sleeve to the outside until the temperature sensor moves to the appropriate position.

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