An isolation device for preventing soil freezing adhesion of a ground temperature sensor

Abstract

The utility model discloses a kind of ground temperature sensor prevents soil freezing adhesion's isolation device, including sleeve, the inside fixed connection of sleeve has heat pipe, the surface fixed connection of heat pipe has multiple evenly distributed heat conduction rod.The utility model uses the heat pipe fixed in sleeve interior can efficiently conduct ground temperature, ensure that sensor accurately senses soil temperature, heat conduction rod on the surface of heat pipe extends to sleeve outside by through port, substantially increase the contact area with soil, further improve the timeliness and accuracy of temperature conduction, sleeve provides stable installation space for sensor, avoid freezing adhesion caused by soil directly contact sensor, prevent the mechanism can prevent device installation inclination, clamping mechanism can firmly fixed sensor, overall structure synergistic effect, let device work stably in complex soil environment, effectively guarantee temperature measurement data reliable, the device has the advantages of good isolation effect and convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of ground temperature sensor technology, specifically to an isolation device for preventing ground temperature sensors from freezing and sticking together. Background Technology

[0002] As a core device for accurately collecting soil temperature data, geothermal sensors play an irreplaceable role in various fields such as agricultural planting, geological exploration, meteorological monitoring, and ecological environment research. The accuracy of their measurement data is directly related to crop growth regulation in agricultural production, early warning and prediction of geological disasters, accurate statistical analysis of meteorological data, and dynamic analysis of ecosystems. Therefore, ensuring the stable and reliable operation of geothermal sensors in complex soil environments is of paramount importance.

[0003] Currently, the conventional method for using ground temperature sensors is to bury them directly into the soil. However, in low-temperature and humid soil environments, especially in northern winters or high-altitude cold regions, moisture in the soil easily condenses and freezes on the sensor surface, causing the sensor to form a strong frozen bond with the surrounding soil. This bonding phenomenon not only seriously interferes with the sensor's transmission and perception of the true soil temperature, causing significant deviations in measurement data and affecting the reliability of monitoring results, but also makes disassembly extremely difficult when the sensor needs to be repaired, calibrated, or replaced. Forced disassembly often leads to damage to the sensor probe and broken circuits, significantly shortening the sensor's lifespan, increasing equipment maintenance costs, and increasing the risk of monitoring interruption.

[0004] Based on the shortcomings of the existing technology, there is an urgent need for a ground temperature sensor accessory device that has good isolation effect, can effectively prevent soil freezing and sticking, and takes into account both temperature conduction efficiency and installation stability. This device can solve the problems of inaccurate measurement, difficult disassembly, and shortened lifespan faced by ground temperature sensors in cold and humid soil environments, and ensure the smooth progress of ground temperature monitoring. Utility Model Content

[0005] To address the problems mentioned in the background art, the purpose of this utility model is to provide an isolation device for preventing soil freezing and adhesion of ground temperature sensors, which has the advantages of good isolation effect and ease of use.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an isolation device for preventing soil freezing and adhesion of a ground temperature sensor, comprising a sleeve, a heat-conducting pipe fixedly connected inside the sleeve, a plurality of uniformly distributed heat-conducting rods fixedly connected to the surface of the heat-conducting pipe, a plurality of annularly distributed openings on the surface of the heat-conducting pipe, one end of each heat-conducting rod passing through the opening and extending to the outside of the sleeve, an anti-tilting mechanism provided at the top of the surface of the sleeve, and a clamping mechanism fixedly connected to the top of the surface of the heat-conducting pipe.

[0007] In a preferred embodiment of this invention, the anti-tilting mechanism includes several support columns fixedly connected to the surface of the casing. The support columns are evenly distributed in a ring on the surface of the casing. A first threaded rod is threaded inside each support column. A pressure plate is fixedly connected to the end of the first threaded rod away from the support column. By setting up the anti-tilting mechanism, the operator can adjust the extension length of the first threaded rod so that the pressure plate fits against the inner wall of the pre-embedded hole, thereby preventing the casing from tilting during backfilling.

[0008] As a preferred embodiment of this utility model, the clamping mechanism includes a fixed frame symmetrically fixedly connected to the surface of the heat-conducting pipe. The fixed frame is internally threaded with a second threaded rod, and the two second threaded rods on the left and right sides that are close to each other are rotatably connected with a pressing block. With the setting of the clamping mechanism, after the ground temperature sensor is inserted into the heat-conducting pipe, the ground temperature sensor can be clamped and positioned by the clamping mechanism.

[0009] As a preferred embodiment of this invention, anchor frames are fixedly connected to all four sides of the bottom surface of the sleeve.

[0010] As a preferred embodiment of this invention, both the heat-conducting pipe and the heat-conducting rod are made of copper, and the sleeve is made of stainless steel.

[0011] As a preferred embodiment of this invention, the surface of the heat-conducting pipe is provided with a plurality of evenly distributed water-permeable holes.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model uses a heat-conducting pipe fixed inside the sleeve to efficiently conduct ground temperature, ensuring that the sensor accurately senses the soil temperature. The heat-conducting rod on the surface of the heat-conducting pipe extends to the outside of the sleeve through the opening, greatly increasing the contact area with the soil and further improving the timeliness and accuracy of temperature conduction. The sleeve provides a stable installation space for the sensor, avoiding direct contact between the soil and the sensor, which could cause freezing and adhesion. The anti-tilting mechanism prevents the device from tilting during installation, and the clamping mechanism can firmly fix the sensor. The overall structure works together to allow the device to work stably in complex soil environments, effectively ensuring the reliability of temperature measurement data. This device has the advantages of good isolation effect and ease of use.

[0013] 2. This utility model provides a stable support foundation for the device through the support column in the anti-tilting mechanism. Its ring-shaped distribution design ensures more uniform support force, effectively resisting the lateral pressure generated during backfilling. The threaded rod inside the support column can flexibly adjust its extension length, allowing the pressure plate to tightly fit the inner wall of the pre-embedded hole. Regardless of the flatness of the inner wall, stable fixation can be achieved through adjustment. This design prevents the device from tilting due to the impact of backfilling, ensuring that the heat pipe and sensor always remain vertical. This provides a stable installation guarantee for accurate temperature conduction and measurement, improving the reliability of the device after installation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the heat pipe and heat rod structure of this utility model; Figure 3 This utility model Figure 1 Enlarged schematic diagram of the structure at point A in the middle; Figure 4 This utility model Figure 1 Enlarged schematic diagram of the structure at point B.

[0015] In the diagram: 1. Sleeve; 2. Heat-conducting pipe; 3. Heat-conducting rod; 4. Through port; 5. Support column; 6. First threaded rod; 7. Pressure plate; 8. Fixing frame; 9. Second threaded rod; 10. Extrusion block; 11. Water-permeable hole; 12. Anchoring frame; 13. Rotary handle. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] like Figures 1 to 4 As shown, an isolation device for preventing soil freezing and adhesion of a ground temperature sensor includes a sleeve 1. A heat-conducting pipe 2 is fixedly connected inside the sleeve 1. Multiple evenly distributed heat-conducting rods 3 are fixedly connected to the surface of the heat-conducting pipe 2. Multiple annularly distributed openings 4 are opened on the surface of the heat-conducting pipe 2. The end of the heat-conducting rod 3 away from the heat-conducting pipe 2 passes through the opening 4 and extends to the outside of the sleeve 1. An anti-tilting mechanism is provided on the top of the surface of the sleeve 1. A clamping mechanism is fixedly connected to the top of the surface of the heat-conducting pipe 2. A rotating handle 13 is fixedly connected to the surface of the first threaded rod 6 and the second threaded rod 9. A rubber pad is fixedly connected to the surface of the extrusion block 10.

[0018] refer to Figure 1The anti-tilting mechanism includes a support column 5 fixedly connected to the surface of the casing 1. There are several support columns 5, which are evenly distributed in a ring on the surface of the casing 1. The support column 5 is internally threaded with a first threaded rod 6. The end of the first threaded rod 6 away from the support column 5 is fixedly connected with a pressure plate 7. By setting the anti-tilting mechanism, the operator can adjust the extension length of the first threaded rod 6 so that the pressure plate 7 fits against the inner wall of the pre-embedded hole, thereby preventing the casing 1 from tilting during backfilling.

[0019] As a technical optimization of this utility model, the support column 5 in the anti-tilting mechanism provides a stable support foundation for the device. Its ring-shaped distribution design makes the support force more uniform and can fully resist the lateral pressure generated during the backfilling process. The threaded rod inside the support column 5 can flexibly adjust its extension length, allowing the pressure plate 7 to fit tightly against the inner wall of the pre-embedded hole. Regardless of the flatness of the inner wall of the pre-embedded hole, stable fixation can be achieved through adjustment. This design avoids the device tilting due to the impact of backfilling, ensuring that the heat conduction pipe 2 and the sensor always remain vertical, providing a stable installation guarantee for accurate temperature conduction and measurement, and improving the reliability of the device after installation.

[0020] refer to Figure 1 The clamping mechanism includes a fixed frame 8 symmetrically fixedly connected to the surface of the heat pipe 2. The fixed frame 8 has a second threaded rod 9 internally threaded, and the two second threaded rods 9 are rotatably connected to a pressing block 10 on the side that is close to each other. With the clamping mechanism, after the ground temperature sensor is inserted into the heat pipe 2, the ground temperature sensor can be clamped and positioned by the clamping mechanism.

[0021] As a technical optimization of this utility model, the fixing frame 8 of the clamping mechanism provides a stable mounting carrier for the threaded rod. The symmetrically distributed structure keeps the forces on both sides balanced, preventing the sensor from shifting due to unilateral force. When the threaded rod rotates, it can drive the extrusion block 10 to move smoothly. By adjusting the threaded rods on both sides, the distance between the extrusion blocks 10 can be precisely controlled. When the extrusion blocks 10 contact the sensor, they can form a firm clamp, effectively improving the stability and temperature measurement accuracy of the sensor after installation.

[0022] refer to Figure 1 Anchor frames 12 are fixedly connected to all four sides of the bottom surface of the sleeve 1.

[0023] As a technical optimization of this utility model, the anchor frame 12 is fixed around the bottom of the casing 1, extending deep into the soil at the bottom of the pre-buried hole to form a solid anchoring structure. Its distribution ensures uniform force distribution at the bottom of the casing 1, effectively dispersing the weight of the device and soil pressure. The tight bond between the anchor frame 12 and the soil enhances the overall stability of the device, preventing the casing 1 from tilting or swaying, ensuring continuous and stable temperature measurement. Especially in soft soil environments, it significantly improves the installation stability and service life of the device.

[0024] refer to Figure 2 The heat pipe 2 and the heat rod 3 are both made of copper, and the sleeve 1 is made of stainless steel.

[0025] As a technical optimization of this utility model, the heat-conducting pipe 2 and heat-conducting rod 3 are made of copper. Copper has excellent thermal conductivity, which can quickly and efficiently conduct soil temperature to the sensor, reducing losses during temperature conduction and ensuring that the sensor can capture soil temperature changes in a timely manner, thus improving the accuracy of temperature measurement data. The sleeve 1 is made of stainless steel. Stainless steel has good corrosion resistance and can resist the erosion of moisture, salt, and other substances in the soil. At the same time, it has strong frost resistance and is not easily deformed or damaged in low-temperature environments. The reasonable combination of the two materials not only ensures the efficiency of temperature conduction but also enhances the weather resistance and durability of the device, extending its service life in complex soil environments. Although the copper heat-conducting pipe 2 and heat-conducting rod 3 are prone to reacting with moisture and salt in the soil to form verdigris, the verdigris structure is dense and can form a natural protective film to slow down deep corrosion. For short-term monitoring, protection is not necessary. If enhanced protection is required, a thin metal-ceramic coating or titanium nitride coating can be used. These coatings are only a few micrometers thick and have a high thermal conductivity, which will not significantly hinder the thermal conductivity of copper, while completely isolating the soil from corrosion.

[0026] refer to Figure 2 The surface of the heat pipe 2 has multiple evenly distributed water-permeable holes 11.

[0027] As a technical optimization of this utility model, the core purpose of setting the permeable hole 11 is to balance the humidity and temperature environment inside and outside the heat conduction pipe 2, ensuring that the temperature sensed by the ground temperature sensor is highly consistent with the actual soil temperature. Since soil naturally contains moisture, if the heat conduction pipe 2 is completely sealed, the difference in humidity between the air inside the pipe and the external soil will create a slight temperature field deviation. Although the copper heat conduction pipe 2 is highly efficient, this humidity imbalance will still cause lag or distortion in temperature conduction inside the pipe. The permeable hole 11 allows a moderate amount of moisture from the soil to enter the heat conduction pipe 2, keeping the humidity inside and outside the pipe synchronized and eliminating temperature field interference. Its necessity lies in ensuring the accuracy of temperature measurement. The core requirement of ground temperature monitoring is data accuracy. The permeable hole 11 directly supports the accuracy of temperature conduction by balancing humidity, avoiding monitoring errors caused by environmental differences. Although some water will enter the heat conduction pipe 2, the amount of water is naturally regulated by the soil moisture, and the water will not accumulate in large quantities, nor will it freeze or stick together. During disassembly, simply loosening the clamping mechanism allows the sensor to be smoothly removed without significant impact from water ingress.

[0028] The working principle and usage procedure of this utility model are as follows: Before use, a comprehensive inspection of all components of the device is conducted to confirm that the surface of the sleeve 1 is undamaged, the connection between the heat-conducting pipe 2 and the heat-conducting rod 3 is firm and not loose, the edge of the opening 4 is smooth and not deformed, the support column 5 of the anti-tilting mechanism and the first threaded rod 6 rotate smoothly, the fixing frame 8 of the clamping mechanism and the second threaded rod 9 are well matched, the rubber pad on the surface of the extrusion block 10 is intact, and the anchor frame 12 and the water-permeable hole 11 are also intact and unobstructed. At the same time, the pre-buried hole in the area to be installed is cleaned, and the loose soil and gravel attached to the hole wall are removed to ensure that the hole wall is relatively flat to avoid affecting the subsequent fixing effect. After preparation, the device is steadily lifted with both hands, and the anchor frame 12 at the bottom of the sleeve 1 is aligned with the bottom of the pre-buried hole. The device is slowly lowered to ensure that the device sinks naturally and vertically under the action of gravity. The anchor frame 12 is inserted into the soil at the bottom of the hole, and the sleeve 1 remains vertical.

[0029] Next, operate the anti-tilting mechanism by rotating the handles 13 on each support column 5 in sequence. This causes the first threaded rod 6 to slowly extend inside the support column 5, gradually bringing the pressure plate 7 closer to the tunnel wall. During this process, continuously observe the verticality of the sleeve 1 and adjust the extension length of the first threaded rod 6 corresponding to different support columns 5 until all pressure plates 7 are tightly fitted against the tunnel wall. Gently shake the device to confirm there is no tilting or loosening, then stop adjusting. Next, install the ground temperature sensor. Rotate the handles 13 on both sides of the clamping mechanism to move the second threaded rod 9 to the sides, expanding the opening space at the top of the heat pipe 2. Slowly insert the ground temperature sensor into the heat pipe 2, ensuring the sensor probe is fully inside the bottom area of ​​the heat pipe 2 and the surface of the ground temperature sensor is tightly fitted against the inner wall of the heat pipe 2. Then, rotate the handles 13 on both sides in the opposite direction to push the pressure block 10 towards the sensor until the rubber pad is tightly fitted against the sensor surface, and the sensor is firmly clamped without any signs of shaking.

[0030] After the sensor is fixed, soil is backfilled into the pre-buried hole. During backfilling, the process is handled gently to avoid soil impact causing displacement of the device. Once backfilled to ground level, the soil is gently compacted. The sensor operates based on the device's dual design of "isolation and protection + efficient temperature transfer." The sleeve 1 acts as an outer physical barrier, directly contacting the soil and creating an independent space for the sensor. Together with the heat pipe 2, it prevents soil from directly adhering to the sensor surface. Even in low-temperature and humid environments, the sensor will not be frozen and encased by the soil, significantly reducing cleaning and maintenance difficulties and minimizing the risk of sensor damage due to adhesion. The heat pipe 2 inside the device is tightly fitted to the sensor, while the heat-conducting rod 3 extends from the sleeve 1 through the opening 4, ensuring full contact with the soil. Because the heat pipe 2 and heat-conducting rod 3 are made of high thermal conductivity copper, they can quickly capture soil temperature changes and conduct heat to the inside of the heat pipe 2, ensuring that the ambient temperature of the sensor matches the external soil temperature. Simultaneously, the water-permeable holes 11 of the heat pipe 2 balance the humidity inside and outside the pipe, preventing temperature and humidity differences from interfering with temperature measurement.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An isolation device for preventing soil freezing and adhesion of a ground temperature sensor, comprising a sleeve (1), characterized in that: A heat-conducting pipe (2) is fixedly connected inside the sleeve (1). A plurality of uniformly distributed heat-conducting rods (3) are fixedly connected to the surface of the heat-conducting pipe (2). A plurality of annularly distributed openings (4) are opened on the surface of the heat-conducting pipe (2). The end of the heat-conducting rod (3) away from the heat-conducting pipe (2) passes through the opening (4) and extends to the outside of the sleeve (1). An anti-tilting mechanism is provided on the top of the surface of the sleeve (1). A clamping mechanism is fixedly connected to the top of the surface of the heat-conducting pipe (2).

2. The isolation device for preventing soil freezing and adhesion of a ground temperature sensor according to claim 1, characterized in that: The anti-tilting mechanism includes a support column (5) fixedly connected to the surface of the sleeve (1). There are several support columns (5). The support columns (5) are evenly distributed in a ring on the surface of the sleeve (1). The internal thread of the support column (5) is connected to a first threaded rod (6). The end of the first threaded rod (6) away from the support column (5) is fixedly connected to a pressure plate (7). By setting the anti-tilting mechanism, the operator can adjust the extension length of the first threaded rod (6) so that the pressure plate (7) fits against the inner wall of the pre-embedded hole, thereby preventing the sleeve (1) from tilting when backfilling soil.

3. The isolation device for preventing soil freezing and adhesion of a ground temperature sensor according to claim 2, characterized in that: The clamping mechanism includes a fixed frame (8) symmetrically fixedly connected to the surface of the heat-conducting pipe (2). The fixed frame (8) is internally threaded with a second threaded rod (9), and the two second threaded rods (9) are rotatably connected to a pressing block (10) on the side that is close to each other. With the setting of the clamping mechanism, after the ground temperature sensor is inserted into the heat-conducting pipe (2), the ground temperature sensor can be clamped and positioned by the clamping mechanism.

4. The isolation device for preventing soil freezing and adhesion of a ground temperature sensor according to claim 3, characterized in that: Anchor frames (12) are fixedly connected to the bottom of the sleeve (1) around its perimeter.

5. The isolation device for preventing soil freezing and adhesion of a ground temperature sensor according to claim 4, characterized in that: The heat pipe (2) and heat rod (3) are both made of copper, and the sleeve (1) is made of stainless steel.

6. The isolation device for preventing soil freezing and adhesion of a ground temperature sensor according to claim 5, characterized in that: The surface of the heat pipe (2) is provided with a plurality of uniformly distributed water-permeable holes (11).

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