A frozen soil roadbed temperature monitoring protection device

Abstract

The application relates to the technical field of roadbed monitoring, in particular to a frozen soil roadbed temperature monitoring protection device, which comprises a vertical heat rod, a temperature monitoring assembly sleeved on the peripheral wall of the heat rod, the temperature monitoring assembly comprises a vertical mounting cylinder, a reinforcing column fixed to the peripheral wall of the mounting cylinder, and a temperature sensor embedded in the peripheral wall of the reinforcing column, the mounting cylinder is detachably connected with the heat rod, the reinforcing column is composed of a short column and a long column in an L shape, the short column is fixed to the peripheral wall of the mounting cylinder, the long column is vertically downward, and the temperature sensor is embedded in the peripheral wall of the long column, so that the temperature in the roadbed can be monitored, and the working state of the heat rod can be judged.

Description

Technical Field

[0001] This application relates to the field of roadbed monitoring technology, and in particular to a temperature monitoring and protection device for frozen soil roadbeds. Background Technology

[0002] With the rapid development of highway construction, the requirements for the stability and safety of roadbeds are becoming increasingly stringent. In plateau regions, permafrost roadbeds are an important component of highways. Temperature changes within the roadbed can alter its stability. When the temperature rises above 0°C, the ice in the permafrost melts, leading to an increase in soil moisture content and a sharp drop in strength, causing thaw settlement. Conversely, when the temperature drops, the water freezes and expands, causing frost heave. The frost heave and thaw settlement process can result in uneven deformation of the roadbed, reducing its safety.

[0003] Existing roadbed protection devices all dissipate heat by inserting heat pipes on both sides of the roadbed. The heat pipes conduct heat through phase change materials, which can guide the heat in the roadbed to the ground and dissipate it, reducing the occurrence of frost heave and thaw settlement in frozen soil roadbeds.

[0004] The existing technical solutions mentioned above have the following drawbacks: During long-term use, heat pipes are prone to leakage due to pipe corrosion, welding fatigue, etc., or the large temperature difference in summer may cause the heat dissipation efficiency to exceed the threshold of the heat pipe, resulting in the gradual decline or even failure of the phase change heat dissipation efficiency. Since the heat pipes are buried in the roadbed, they cannot be identified in time, leading to the occurrence of permafrost roadbed diseases. Utility Model Content

[0005] This application provides a frozen soil subgrade temperature monitoring and protection device for monitoring the temperature inside the subgrade and thus determining the working status of the heat pipe.

[0006] The above-mentioned technical objective of this application is achieved through the following technical solution:

[0007] A temperature monitoring and protection device for frozen soil subgrade includes a vertically arranged heat pipe and a temperature monitoring component sleeved on the periphery of the heat pipe. The temperature monitoring component includes a vertically arranged mounting cylinder, a reinforcing column fixed to the outer periphery of the mounting cylinder, and a temperature sensor embedded in the outer periphery of the reinforcing column. The mounting cylinder and the heat pipe are detachably connected. The reinforcing column is L-shaped and consists of a short column and a long column. The short column is fixed to the outer periphery of the mounting cylinder, the long column is vertically downward, and the temperature sensor is embedded in the periphery of the long column.

[0008] By adopting the above technical solution, and by setting up a heat pipe and a temperature monitoring component, the temperature monitoring component includes a vertically installed mounting cylinder, a reinforcing column fixed to the outer periphery of the mounting cylinder, and a temperature sensor embedded in the outer periphery of the reinforcing column. This allows the temperature sensor to penetrate deep into the roadbed along with the long column, enabling real-time monitoring of the temperature at different depths of the roadbed. The temperature data is used to determine whether the heat pipe is working properly. At the same time, the detachable connection between the mounting cylinder and the heat pipe facilitates the installation and maintenance of the device, achieving effective monitoring of the temperature of the frozen soil roadbed and judgment of the working status of the heat pipe.

[0009] Optionally, the end of the long column away from the short column is machined into a conical shape.

[0010] By adopting the above technical solution, and processing the end of the long column away from the short column into a conical shape, the guiding effect of the conical end can be used to reduce the insertion resistance when the reinforced column is inserted into the frozen soil subgrade. This allows the long column to be inserted into the subgrade more smoothly, avoiding problems such as excessive soil resistance and equipment damage caused by sharp or irregular ends, and ensuring the installation convenience and stability of the temperature monitoring components.

[0011] Optionally, a sleeve is provided inside the mounting cylinder. The inner peripheral wall of the sleeve has a sliding groove and a fixing groove. The sliding groove connects to both ends of the sleeve. The fixing groove is provided on the side wall of the sliding groove. The fixing groove and both ends of the sleeve are spaced apart. An installation component is fixedly connected to the peripheral wall of the heat rod. The installation component is adapted to both the sliding groove and the fixing groove. The installation component can slide in the sliding groove. The installation component is inserted and fixed in the fixing groove by a sliding fixing structure.

[0012] By adopting the above technical solution, and by setting a sleeve and an installation component, a sliding groove and a fixing groove are opened on the inner peripheral wall of the sleeve. The sliding groove connects the two ends of the sleeve, and the fixing groove is opened on the side wall of the sliding groove and spaced apart from the two ends of the sleeve. The installation component can slide in the sliding groove and be fixed in the fixing groove by a sliding fixing structure. This allows the heat rod to be initially positioned by sliding the installation component in the sliding groove, and then the installation component is fixed in the fixing groove by the sliding fixing structure, thereby realizing a detachable connection between the heat rod and the installation cylinder and improving the accuracy of the temperature monitoring component.

[0013] Optionally, the sliding fixing structure includes a baffle, a sliding ring plate, a spring, and a fixing member. The baffle is fixedly connected to the inner wall of the mounting cylinder, and the baffle and the sleeve are spaced apart. The sliding ring plate is slidably arranged in a ring between the baffle and the sleeve. The spring is fixedly installed between the baffle and the fixing member. The fixing member is fixedly connected to the plate surface of the sliding ring plate away from the baffle. The fixing member is adapted to the sliding groove and slidably arranged in the sliding groove.

[0014] By adopting the above technical solution, and by setting up a baffle, a sliding ring plate, a spring, and a fixing component, during the insertion of the hot rod, when the mounting component pushes the fixing component to cause the spring to contract, and after the hot rod is rotated, the spring relaxes to push the sliding ring plate and the fixing component, fixing the mounting component in the fixing groove, thus realizing the automatic locking of the hot rod. This structure uses the elastic force of the spring to provide fixing force, ensuring that the hot rod is tightly connected to the mounting cylinder, preventing loosening due to vibration and other factors, and improving the reliability of the device.

[0015] Optionally, chamfers are formed at both corners of the end face of the mounting component.

[0016] By adopting the above technical solution, and by forming chamfers at both corners of the end face of the mounting component, friction and resistance at the corners can be reduced when the mounting component slides in the sliding groove, making the mounting component slide more smoothly and ensuring the smooth progress of the device installation process.

[0017] Optionally, an unlocking post is slidably disposed inside the sleeve. The unlocking post is L-shaped, and its end passes through the sleeve and is fixedly connected to the sliding ring plate.

[0018] By adopting the above technical solution and setting an unlocking post, when it is necessary to disassemble the heat rod, the sliding unlocking post can be used to move the sliding ring plate, causing the fixing part to disengage from the fixing groove and releasing the fixed connection between the heat rod and the mounting cylinder. This structure provides a convenient unlocking method, which can disassemble the heat rod without complicated tools, making it convenient for the maintenance and repair of the device and improving the ease of operation.

[0019] Optionally, four reinforcing columns are provided, and the four reinforcing columns are evenly distributed at equal angles on the outer peripheral wall of the mounting cylinder.

[0020] By adopting the above technical solution, the four reinforcing columns can be evenly stressed around the installation cylinder, which enhances the stability of the temperature monitoring component in the frozen soil subgrade and reduces tilting or shaking caused by unilateral stress.

[0021] Optionally, a battery and a signal transmitter are embedded in the outer peripheral wall of the sleeve, and the battery is electrically connected to both the temperature sensor and the signal transmitter.

[0022] By adopting the above technical solution, and by setting up a battery and a signal transmitter, with the battery electrically connected to both the temperature sensor and the signal transmitter, power can be provided to the temperature sensor and the signal transmitter. This allows the real-time temperature data of the frozen soil subgrade collected by the temperature sensor to be transmitted to the data center through the signal transmitter, realizing remote real-time monitoring of the subgrade temperature. This eliminates the need for manual on-site data collection, improving monitoring efficiency and convenience, and facilitating timely judgment of the working status of the heat pipe and the stability of the subgrade based on the temperature data.

[0023] In summary, this application has the following technical effects:

[0024] 1. By setting up a heat pipe and a temperature monitoring component, the temperature monitoring component includes a vertically installed cylinder, a reinforcing column fixed to the outer periphery of the installation cylinder, and a temperature sensor embedded in the outer periphery of the reinforcing column. The temperature sensor can penetrate deep into the roadbed along with the long column to monitor the temperature at different depths of the roadbed in real time. The temperature data is used to determine whether the heat pipe is working properly. At the same time, the detachable connection between the installation cylinder and the heat pipe facilitates the installation and maintenance of the device, realizing effective monitoring of the temperature of the frozen soil roadbed and judgment of the working status of the heat pipe.

[0025] 2. By setting a sleeve and an installation component, a sliding groove and a fixing groove are opened on the inner circumferential wall of the sleeve. The sliding groove connects the two ends of the sleeve, and the fixing groove is opened on the side wall of the sliding groove and spaced apart from the two ends of the sleeve. The installation component can slide in the sliding groove and be fixed in the fixing groove by the sliding fixing structure. The heat rod can be initially positioned by the sliding of the installation component in the sliding groove, and then the installation component is fixed in the fixing groove by the sliding fixing structure, thereby realizing the detachable connection between the heat rod and the installation cylinder and improving the accuracy of the temperature monitoring component.

[0026] 3. By setting up a battery and a signal transmitter, and with the battery electrically connected to both the temperature sensor and the signal transmitter, power can be provided to the temperature sensor and the signal transmitter. This allows the real-time temperature data of the frozen soil subgrade collected by the temperature sensor to be transmitted to the data center through the signal transmitter, realizing remote real-time monitoring of the subgrade temperature. This eliminates the need for manual on-site data collection, improving monitoring efficiency and convenience, and facilitating timely judgment of the working status of the heat pipe and the stability of the subgrade based on the temperature data. Attached Figure Description

[0027] Figure 1 This is a structural diagram of the object of this application;

[0028] Figure 2 This is a structural diagram of the temperature monitoring component of this application.

[0029] Explanation of reference numerals in the attached drawings: 1. Protective component; 11. Heat pipe; 111. Insertion section; 12. Heat sink; 13. Mounting component; 2. Temperature monitoring component; 21. Mounting cylinder; 211. Sleeve; 22. Reinforcing column; 221. Short column; 222. Long column; 223. Temperature sensor; 23. Sliding limit structure; 231. Sliding groove; 232. Fixing groove; 24. Baffle; 25. Sliding ring plate; 251. Fixing component; 26. Unlocking column; 27. Power supply; 28. Signal transmitter. Detailed Implementation

[0030] The present application will be further described in detail below with reference to the accompanying drawings.

[0031] This application discloses a temperature monitoring and protection device for frozen soil roadbeds, referring to... Figure 1The protective device includes a protective component 1 and a temperature monitoring component 2. The protective component 1 is inserted into the frozen soil subgrade and can conduct heat from the inside of the frozen soil subgrade to the ground and dissipate it, reducing the possibility of frost heave and thaw settlement inside the frozen soil subgrade. The temperature monitoring component 2 can monitor the temperature inside the frozen soil subgrade in real time and determine whether the protective component 1 is operating normally based on the monitoring data. At the same time, the temperature monitoring component 2 can also reinforce the protective component 1.

[0032] Reference Figure 1 The protective component 1 includes a heat pipe 11 vertically inserted into the frozen soil roadbed. The heat pipe 11 is cylindrical, and a section of threaded heat sink 12 is formed on the upper end of the peripheral wall of the heat pipe 11. The outer peripheral wall of the heat pipe 11 to which the heat sink 12 is fixed is the insertion section 111. The insertion section 111 of the heat pipe 11 is inserted into the frozen soil roadbed, and the heat sink 12 is located above the ground and spaced apart from the frozen soil roadbed.

[0033] Combination Figure 1 and Figure 2 The temperature monitoring component 2 includes a vertically mounted installation cylinder 21, which is cylindrical. Reinforcing columns 22 are fixed to the outer periphery of the installation cylinder 21. The reinforcing columns 22 are L-shaped and consist of short columns 221 and long columns 222, the ends of which are fixedly connected to each other. The length direction of the short columns 221 is perpendicular to the length direction of the long columns 222. The end of the short column 221 furthest from the long column 222 is fixed to the outer periphery of the installation cylinder 21. Four reinforcing columns 22 are provided, evenly spaced at equal angles around the axis of the installation cylinder 21. The long columns 222 point vertically downwards, and the end face furthest from the short columns 221 is machined into a conical shape for easy insertion into the frozen soil subgrade. Temperature sensors 223 are embedded in the periphery of the long columns 222.

[0034] Combination Figure 1 and Figure 2 A sleeve 211 is fixedly connected to the inner wall of the mounting cylinder 21. The insertion section 111 is adapted to the sleeve 211 and can be inserted into the sleeve 211. The outer peripheral wall of the sleeve 211 is fixedly connected to the inner peripheral wall of the mounting cylinder 21. The end face of the sleeve 211 is flush with the upper end face of the mounting cylinder 21. A sliding groove 231 and a fixing groove 232 are formed on the inner wall of the sleeve 21 along the axis of the mounting cylinder 21. The sliding groove 231 connects the two end faces of the sleeve 211. The side wall of the sliding groove 231 at the opening of the upper end face of the sleeve 211 is chamfered. The fixing groove 232 is formed on one side of the groove wall of the sliding groove 231. The fixing groove 232 is located in the middle of the length direction of the sliding groove 231. The length direction of the fixing groove 232 is parallel to the length direction of the sliding groove 231. The length of the fixing groove 232 is one-third of the length of the sliding groove 231. The sliding groove 231 and the fixed groove 232 form a set of sliding limiting structures 23. Three sets of sliding limiting structures 23 are evenly distributed at equal angles on the inner wall of the sleeve 211.

[0035] Combination Figure 1 and Figure 2 An annular baffle 24 is coaxially fixed to the lower end of the inner wall of the mounting cylinder 21. The baffle 24 is spaced apart from the sleeve 211, and the surface of the baffle 24 is perpendicular to the axis of the mounting cylinder 21. A sliding ring plate 25 with an annular surface is slidably disposed between the baffle 24 and the sleeve 211. The sliding ring plate 25 is coaxially disposed with the mounting cylinder 21, and the outer wall of the sliding ring plate 25 slides in contact with the inner wall of the mounting cylinder 21. A spring is disposed between the sliding ring plate 25 and the baffle 24, with one end of the spring fixed to the surface of the baffle 24 and the other end fixed to the surface of the sliding ring plate 25. The surface of the sliding ring plate 25 facing away from the baffle 24 can fit against the end face of the sleeve 211. A fixing member 251 is fixedly connected to the surface of the sliding ring plate 25 facing away from the baffle 24. The fixing member 251 is adapted to the sliding groove 231 and slidably inserted into the sliding groove 231. When the surface of the sliding ring plate 25 fits against the end face of the sleeve 211, the end face of the fixing member 251 facing away from the sliding ring plate 25 is flush with the end wall of the fixing groove 232 away from the baffle 24. The side wall of the fixing member 251 can close the fixing groove 232. The baffle 24, the sliding ring plate 25, the fixing member 251 and the spring constitute a sliding and fixing structure.

[0036] Combination Figure 1 and Figure 2 A mounting component 13, spaced apart from the heat sink 12, is fixedly connected to the periphery of the insertion section 111. The mounting component 13 is adapted to the sliding groove 231 and slides in the sliding groove 231. The mounting component 13 is adapted to the fixing groove 232 and can be inserted into the fixing groove 232. The corners on both sides of the end face of the mounting component 13 are chamfered.

[0037] Combination Figure 1 and Figure 2 During the insertion of the heating rod 11 into the mounting cylinder 21, the mounting member 13 slides in the sliding groove 231. When the end face of the mounting member 13 abuts against the end face of the fixing member 251, the heating rod 11 continues to be inserted into the mounting cylinder 21. The mounting member 13 pushes the fixing member 251 and the sliding ring plate 25 to compress the spring. When the spring can no longer compress, the end face of the fixing member 251 away from the sliding ring plate 25 is flush with the end wall of the fixing groove 232 near the baffle 24. The heating rod 11 is rotated so that the mounting member 13 is located in the fixing groove 232. The spring relaxes and pushes the sliding ring plate 25 and the fixing member 251. The fixing member 251 fixes the mounting member 13 in the fixing groove 232. The sliding fixing structure fixes the heating rod 11 in the mounting cylinder 21. The sliding fixing structure and the sliding limiting structure 23 allow the heating rod 11 to be detachably mounted in the mounting cylinder 21. The mounting cylinder 21 and the reinforcing column 22 can improve the stability of the heat pipe 11, reduce the shaking of the heat pipe 11, and improve the stability and safety of the heat pipe 11.

[0038] Combination Figure 1 and Figure 2Between two adjacent sliding limiting areas of sleeve 211, a sliding unlocking post 26, a battery, and a signal transmitter 28 are respectively provided. The unlocking post 26 is an L-shaped cylinder. One end of the unlocking post 26 slides downward into sleeve 211 from above, and the end of the unlocking post 26 is fixed to the surface of the sliding ring plate 25. The length of the unlocking post 26 located in sleeve 211 is parallel to the axis of the heat pipe 11. The battery and the signal transmitter 28 are completely embedded in the outer peripheral wall of sleeve 211. The battery is electrically connected to both the temperature sensor 223 and the signal transmitter 28. The signal transmitter 28 can transmit the frozen soil subgrade temperature data collected by the temperature sensor 223 to the data center.

[0039] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this application.

Claims

1. A temperature monitoring and protection device for frozen soil roadbeds, characterized in that: The device includes a vertically arranged heat rod (11) and a temperature monitoring component (2) sleeved on the periphery of the heat rod (11). The temperature monitoring component includes a vertically arranged mounting cylinder (21), a reinforcing column (22) fixed to the outer periphery of the mounting cylinder (21), and a temperature sensor (223) embedded in the outer periphery of the reinforcing column (22). The mounting cylinder (21) is detachably connected to the heat rod (11). The reinforcing column (22) is L-shaped, consisting of a short column (221) and a long column (222). The short column (221) is fixed to the outer periphery of the mounting cylinder (21), the long column (222) is vertically downward, and the temperature sensor (223) is embedded in the periphery of the long column (222).

2. The frozen soil subgrade temperature monitoring and protection device according to claim 1, characterized in that: The end of the long column (222) away from the short column (221) is processed into a conical shape.

3. The frozen soil subgrade temperature monitoring and protection device according to claim 1, characterized in that: The mounting cylinder (21) is provided with a sleeve (211). The inner peripheral wall of the sleeve (211) is provided with a sliding groove (231) and a fixing groove (232). The sliding groove (231) is connected to both ends of the sleeve (211). The fixing groove (232) is opened on the side wall of the sliding groove (231). The fixing groove (232) and both ends of the sleeve (211) are spaced apart. An installation part (13) is fixedly connected to the peripheral wall of the heat rod (11). The installation part (13) is adapted to both the sliding groove (231) and the fixing groove (232). The installation part (13) can slide in the sliding groove (231). The installation part (13) is inserted and fixed in the fixing groove (232) by a sliding fixing structure.

4. The frozen soil subgrade temperature monitoring and protection device according to claim 3, characterized in that: The sliding fixing structure includes a baffle (24), a sliding ring plate (25), a spring, and a fixing member (251). The baffle (24) is fixed to the inner wall of the mounting cylinder (21). The baffle (24) and the sleeve (211) are spaced apart. The sliding ring plate (25) is slidably arranged in a ring between the baffle (24) and the sleeve (211). The spring is fixedly installed between the baffle (24) and the fixing member (251). The fixing member (251) is fixed to the plate surface of the sliding ring plate (25) away from the baffle (24). The fixing member (251) is adapted to the sliding groove (231) and is slidably arranged in the sliding groove (231).

5. The frozen soil subgrade temperature monitoring and protection device according to claim 4, characterized in that: The mounting component (13) has chamfered edges on both sides of its end face.

6. The frozen soil subgrade temperature monitoring and protection device according to claim 3, characterized in that: An unlocking post (26) is slidably disposed inside the sleeve (211). The unlocking post (26) is L-shaped, and the end of the unlocking post (26) passes through the sleeve (211) and is fixedly connected to the sliding ring plate (25).

7. The frozen soil subgrade temperature monitoring and protection device according to claim 1, characterized in that: Four reinforcing columns (22) are provided, and the four reinforcing columns (22) are evenly distributed at equal angles on the outer peripheral wall of the mounting cylinder (21).

8. The frozen soil subgrade temperature monitoring and protection device according to claim 3, characterized in that: The outer peripheral wall of the sleeve (211) is fitted with a battery and a signal transmitter (28), and the battery is electrically connected to both the temperature sensor (223) and the signal transmitter (28).

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