Underground water temperature monitoring device for hydrogeological exploration

Abstract

The invention relates to the field of water temperature detection devices, and discloses an underground water temperature monitoring device for hydrogeological exploration, which comprises a sensor body and an expansion mechanism arranged above the sensor body, one side of the expansion mechanism is provided with a cleaning mechanism, and the expansion mechanism comprises a liquid storage assembly arranged above the sensor body. A threaded rod is driven by a motor, an extrusion disc is pushed to apply uniform pressure to liquid in a liquid storage cavity, the pressure is transmitted to the expansion assemblies, and a sliding short rod overcomes the tension of a spring and extends outwards; the arc-shaped plate and the rubber pad of the arc-shaped plate are driven to tightly abut against the well wall, it is guaranteed that the sensor body is located at the optimal measurement position all the time, physical damage and temperature interference caused by direct contact with the well wall are avoided, displacement or vibration caused by underground water flowing and cable pulling of equipment is resisted, and risks caused by equipment shaking and collision are reduced; and the service life of equipment is prolonged.

Description

Technical Field

[0001] This invention relates to the field of water temperature detection technology, specifically to a groundwater temperature monitoring device for hydrogeological exploration. Background Technology

[0002] Patent application CN207268655U includes a water temperature monitoring body, comprising a monitoring probe for measurement, a telescopic device connected to one end of the monitoring probe, a protective shell fixed around the telescopic device, a display device fixed to the surface of the protective shell, a threaded rod penetrating the protective shell, and a rotating head fixed to the end of the threaded rod away from the monitoring probe. This portable underground water temperature measurement system rotates the threaded rod by rotating the rotating head. The threaded rod extends within the threaded sleeve, pushing out of the connecting tube and causing the probe to extend further into the water source. This allows for length adjustment based on different testing environments, facilitating water temperature testing. After testing, rotating the rotating head in the opposite direction retracts the threaded rod, and the connecting tube retracts into the protective shell, facilitating storage and portability.

[0003] In the aforementioned patents, some existing devices struggle to maintain stable alignment of the sensor probe within the wellbore under complex groundwater flow or vibration environments. This can lead to misalignment or collisions with the well wall, potentially causing not only distorted measurement data but also wear or damage to the device's mechanical structure. Furthermore, when the sensor probe is submerged in groundwater for extended periods, biofilms, sediments, or mineral scale can easily adhere to its surface. These deposits form an insulating layer, severely hindering heat exchange between the sensor and the surrounding water, resulting in significant deviations in temperature measurements. Moreover, the device often needs to be removed from the well for manual cleaning, impacting water temperature monitoring. Summary of the Invention

[0004] The purpose of this invention is to provide a groundwater temperature monitoring device for hydrogeological exploration, so as to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution of the present invention is: a groundwater temperature monitoring device for hydrogeological exploration, comprising a sensor body and an extension mechanism disposed above the sensor body, a cleaning mechanism disposed on one side of the extension mechanism, the extension mechanism including a liquid storage component disposed above the sensor body, a water pressurization component disposed above the liquid storage component, four sets of extension components disposed outside the liquid storage component, and a counterweight block disposed on the side of the liquid storage component opposite to the cleaning mechanism. The liquid storage assembly includes a liquid storage shell disposed above the sensor body, with a liquid storage cavity inside the liquid storage shell and a drain hole at the bottom of the liquid storage shell. An external threaded ring is fixedly connected to the lower end of the liquid storage shell, and the position of the external threaded ring corresponds to the drain hole. A limit rod is fixedly connected to the upper part of the inside of the liquid storage shell. A through hole corresponding to the four sets of expansion components is opened on the outside of the liquid storage shell, and the through hole is connected to the liquid storage cavity and the drain hole.

[0006] Preferably, the water pressing assembly includes a motor fixedly mounted on the upper end of the liquid storage shell, a threaded rod fixedly connected to the output end of the motor, a squeezing disc disposed inside the liquid storage shell, a threaded groove corresponding to the threaded rod on the squeezing disc, a rubber ring fixedly mounted on the outer side of the squeezing disc, and a limiting through hole corresponding to the limiting vertical rod on the squeezing disc.

[0007] Preferably, the extension component includes a fixed horizontal tube fixedly connected to the outside of the liquid storage shell, the fixed horizontal tube corresponding to a through hole opened on the liquid storage shell, a valve fixedly installed in the fixed horizontal tube and the through hole on the liquid storage shell, a vertical rod fixedly installed inside the fixed horizontal tube, a sliding short rod slidably connected inside the fixed horizontal tube, a spring installed between the vertical rod and the sliding short rod, an arc-shaped plate fixedly connected to the other end of the sliding short rod, and a rubber pad fixedly connected to one side of the arc-shaped plate.

[0008] Preferably, one end of the spring is fixedly connected to one side of the vertical rod, and the other end of the spring is fixedly connected to one end of the sliding short rod.

[0009] Preferably, a hollow vertical tube is fixedly connected to the upper end of the sensor body, and the liquid storage shell and the extrusion plate are both provided with holes and slots corresponding to the hollow vertical tube. The holes and slots on the liquid storage shell are fixedly connected to the hollow vertical tube, and the holes and slots on the extrusion plate are slidably connected to the hollow vertical tube. A connecting wire is fixedly provided on the sensor body and is located inside the hollow vertical tube.

[0010] Preferably, the cleaning mechanism includes a reset component disposed above the liquid storage tank, a guide component disposed below the liquid storage tank, and a cleaning component disposed on one side of the guide component.

[0011] Preferably, the reset assembly includes a fixed shell fixedly connected to the upper end of the liquid storage shell, the fixed shell is provided with a coil spring and a winding rod, a reset rope is wound on the winding rod, and a threaded short rod is fixedly connected to the other end of the reset rope.

[0012] Preferably, the guide assembly includes a long vertical tube, the upper end of which is rotatably connected to a rotating ring. A sliding groove and a guide groove are respectively opened on the outer side of the long vertical tube, and a thread is provided inside the rotating ring.

[0013] Preferably, the cleaning assembly includes a sliding block slidably disposed within a long vertical pipe. A guide block and a connecting horizontal plate are fixedly connected to the outer side of the sliding block. A fixing ring is fixedly connected to one end of the guide block. A cleaning ring is fixedly connected inside the fixing ring. A connecting annular column is fixedly connected above the connecting horizontal plate. A rubber diaphragm sleeve is fixedly disposed at the upper end of the sliding block. A connecting ring is fixedly disposed above the rubber diaphragm sleeve. Threads are provided on both the inner and outer sides of the connecting ring. The outer thread of the connecting ring corresponds to the inner thread of the rotating ring, and the inner thread of the connecting ring corresponds to the outer threaded ring.

[0014] Preferably, the connecting annular post has internal threads, and the internal threads of the connecting annular post correspond to the threaded short rod.

[0015] Compared with the prior art, the technical solution of the present invention has the following advantages: (1) An extension mechanism is provided on the sensor body, and a cleaning mechanism is provided on the outside of the extension mechanism. This application uses a motor to drive a threaded rod to push the extrusion plate to apply uniform pressure to the liquid in the storage chamber. The pressure is transmitted to all extension components through four radially distributed pipelines. Under hydraulic action, the sliding short rod overcomes the spring tension and extends outward, driving the arc plate and its rubber pad to tightly support the well wall, realizing multi-point support and roughly suspending it in the central area of ​​the well barrel, ensuring that the sensor body and the well wall will not directly contact each other, thus preventing physical damage and temperature interference. When the extension is in place, the valve automatically closes, allowing the extension state to be maintained for a long time without continuous energy consumption, effectively resisting the displacement or vibration that may be caused by groundwater flow and the pulling of the equipment's own cables, reducing the risk of failure caused by equipment shaking and collision, and extending the service life of the equipment. (2) The groundwater environment is complex. When the sensor is submerged in it for a long time, biofilm or mineral scale can easily grow on its surface. These deposits will isolate the heat exchange between the sensor and the water body, resulting in serious distortion of the temperature measurement value. This is a fatal problem for long-term monitoring. The present invention pressurizes the motor, and the liquid enters through the drain hole and is sealed in the inner part formed by the rubber film sleeve. The pressure pushes the sliding block, which drives the cleaning ring to move steadily downward along the guide groove. The cleaning ring tightly scrapes the surface of the sensor body, forcibly peels off and removes the deposits on it. After cleaning, the motor reverses and the entire cleaning assembly is smoothly reset under the tension of the coil spring of the reset assembly, ready for the next operation. This allows the user to complete the cleaning and maintenance without taking the equipment out of the well. It solves the pain points of long maintenance cycle, high workload and data interruption in traditional methods. It ensures the cleanliness of the sensor probe and allows its thermal element to maintain direct and efficient heat conduction with the surrounding water body, thereby continuously outputting real and reliable temperature data. This improves the reliability and data quality of ultra-long-term monitoring projects and avoids frequent manual intervention. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the sensor body and the expansion mechanism of the present invention; Figure 3 This is a schematic diagram of the extended mechanism structure of the present invention; Figure 4 This is a schematic diagram of the liquid storage component structure of the present invention; Figure 5 This is a schematic diagram of the water pressure assembly structure of the present invention; Figure 6 This is a schematic diagram of the extended component structure of the present invention; Figure 7 This is a schematic diagram of the sensor body structure of the present invention; Figure 8 This is a schematic diagram of the cleaning mechanism structure of the present invention; Figure 9 This is a schematic diagram of the reset component structure of the present invention; Figure 10 This is a schematic diagram of the guiding component structure of the present invention; Figure 11 This is a schematic diagram of the cleaning component structure of the present invention.

[0017] In the diagram: 1. Sensor body; 11. Hollow vertical tube; 2. Expansion mechanism; 21. Liquid storage assembly; 211. Liquid storage shell; 212. Liquid storage chamber; 213. Drain hole; 214. External threaded ring; 215. Limiting vertical rod; 22. Water pressure assembly; 221. Motor; 222. Threaded rod; 223. Extrusion plate; 224. Rubber ring; 225. Limiting through hole; 23. Expansion assembly; 231. Fixed horizontal tube; 232. Valve; 233. Vertical rod; 234. Sliding short rod; 235. Arc plate; 236. 1. Rubber pad; 237. Spring; 24. Counterweight; 3. Cleaning mechanism; 31. Reset assembly; 311. Fixed shell; 312. Reset rope; 313. Threaded short rod; 32. Guide assembly; 321. Long vertical tube; 322. Guide groove; 323. Sliding groove; 324. Rotating ring; 33. Cleaning assembly; 331. Sliding block; 332. Guide block; 333. Fixed ring; 334. Cleaning ring; 335. Connecting horizontal plate; 336. Connecting annular column; 337. Rubber diaphragm sleeve; 338. Connecting ring. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0019] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms "comprising" or "including," and similar terms used in this disclosure, mean that an element or object preceding the term encompasses the elements or objects listed following the term and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; these relative positional relationships may change accordingly when the absolute position of the described objects changes.

[0020] like Figures 1 to 11 As shown, the present invention provides a groundwater temperature monitoring device for hydrogeological exploration, including a sensor body 1 and an extension mechanism 2 disposed above the sensor body 1. A cleaning mechanism 3 is disposed on one side of the extension mechanism 2. The extension mechanism 2 includes a liquid storage component 21 disposed above the sensor body 1. A water pressure component 22 is disposed above the liquid storage component 21. Four sets of extension components 23 are disposed outside the liquid storage component 21. A counterweight block 24 is disposed on the side of the liquid storage component 21 opposite to the cleaning mechanism 3. The liquid storage assembly 21 includes a liquid storage shell 211 disposed above the sensor body 1. The liquid storage shell 211 has a liquid storage cavity 212 inside and a drain hole 213 below. An external threaded ring 214 is fixedly connected to the lower end of the liquid storage shell 211, and the position of the external threaded ring 214 corresponds to the drain hole 213. A limit rod 215 is fixedly connected to the upper part of the liquid storage shell 211. A through hole corresponding to the four sets of expansion components 23 is opened on the outside of the liquid storage shell 211, and the through hole is connected to the liquid storage cavity 212 and the drain hole 213. A counterweight 24 is fixedly disposed on the side of the liquid storage shell 211 opposite to the cleaning mechanism 3 to keep the liquid storage shell 211 in a horizontal state.

[0021] The water pressure assembly 22 includes a motor 221 fixedly mounted on the upper end of the liquid storage shell 211. A threaded rod 222 is fixedly connected to the output end of the motor 221. A squeezing plate 223 is provided inside the liquid storage shell 211. A threaded groove corresponding to the threaded rod 222 is opened on the squeezing plate 223. A rubber ring 224 is fixedly mounted on the outside of the squeezing plate 223. A limiting through hole 225 corresponding to the limiting vertical rod 215 is opened on the squeezing plate 223.

[0022] The extension component 23 includes a fixed horizontal tube 231 fixedly connected to the outside of the liquid storage shell 211. The fixed horizontal tube 231 corresponds to the through hole opened on the liquid storage shell 211. A valve 232 is fixedly installed in the fixed horizontal tube 231 and the through hole on the liquid storage shell 211. A vertical rod 233 is fixedly installed inside the fixed horizontal tube 231. A sliding short rod 234 is slidably connected inside the fixed horizontal tube 231. A spring 237 is installed between the vertical rod 233 and the sliding short rod 234. An arc-shaped plate 235 is fixedly connected to the other end of the sliding short rod 234. A rubber pad 236 is fixedly connected to one side of the arc-shaped plate 235.

[0023] One end of spring 237 is fixedly connected to one side of vertical rod 233, and the other end of spring 237 is fixedly connected to one end of sliding short rod 234.

[0024] A hollow vertical tube 11 is fixedly connected to the upper end of the sensor body 1. The liquid storage shell 211 and the extrusion plate 223 are both provided with holes and slots corresponding to the hollow vertical tube 11. The holes and slots on the liquid storage shell 211 are fixedly connected to the hollow vertical tube 11, and the holes and slots on the extrusion plate 223 are slidably connected to the hollow vertical tube 11. A connecting wire is fixedly provided on the sensor body 1 and is located inside the hollow vertical tube 11.

[0025] The cleaning mechanism 3 includes a reset component 31 disposed above the liquid storage shell 211, a guide component 32 disposed below the liquid storage shell 211, and a cleaning component 33 disposed on one side of the guide component 32.

[0026] The reset assembly 31 includes a fixed shell 311 fixedly connected to the upper end of the liquid storage shell 211. The fixed shell 311 is provided with a coil spring and a winding rod. A reset rope 312 is wound on the winding rod. The other end of the reset rope 312 is fixedly connected to a threaded short rod 313.

[0027] The guide assembly 32 includes a long vertical tube 321, with a rotating ring 324 rotatably connected to the upper end of the long vertical tube 321. A sliding groove 323 and a guide groove 322 are respectively opened on the outer side of the long vertical tube 321, and a thread is provided in the rotating ring 324.

[0028] The cleaning component 33 includes a sliding block 331 slidably disposed within a long vertical tube 321. A guide block 332 and a connecting horizontal plate 335 are fixedly connected to the outer side of the sliding block 331. A fixing ring 333 is fixedly connected to one end of the guide block 332. A cleaning ring 334 is fixedly connected inside the fixing ring 333. A connecting annular post 336 is fixedly connected above the connecting horizontal plate 335. A rubber diaphragm sleeve 337 is fixedly disposed on the upper end of the sliding block 331. A connecting ring 338 is fixedly disposed above the rubber diaphragm sleeve 337. Threads are provided on both the inner and outer sides of the connecting ring 338. The outer thread of the connecting ring 338 corresponds to the inner thread of the rotating ring 324. The inner thread of the connecting ring 338 corresponds to the outer thread ring 214. The connecting horizontal plate 335 is slidably connected to the sliding groove 323. The guide block 332 is slidably connected to the guide groove 322. The cleaning ring 334 corresponds to the sensor body 1.

[0029] The connecting annular post 336 has internal threads, and the internal threads of the connecting annular post 336 correspond to the threaded short rod 313.

[0030] The working principle of this invention: After the device is lowered to the designated depth, the motor 221 is started. The motor 221 drives the threaded rod 222 to rotate. The extrusion disc 223 is restricted from rotating by the limiting vertical rod 215. The threaded rod 222 drives the extrusion disc 223 to move downward through the threaded groove on the extrusion disc 223. The extrusion disc 223 presses down on the liquid in the storage chamber 212. Under pressure, the liquid enters the valves 232 in the four expansion components 23 and flows into the fixed horizontal pipe 231. The liquid flowing into the fixed horizontal pipe 231 pushes the sliding short rod 234 to extend outward against the tension of the spring 237. The sliding short rod 234 drives the arc plate 235 and its rubber pad 236 to move outward until they are tightly supported on the well wall, thereby firmly fixing the entire device in the well. When the expansion mechanism 2 is fully opened, the valve 232 closes, and the motor 221 drives the threaded rod 222 to rotate. Reverse rotation causes the liquid squeezed into the rubber diaphragm sleeve 337 to return to the storage chamber 212 under the action of the reset component 31. The valve 232 can prevent liquid backflow, maintain the expanded state, and prevent the device from shaking and contacting the well wall, which would damage the equipment. If there is a depression in the well wall, the sensor body 1 will tilt. However, due to the expansion mechanism 2, the arc plate 235 squeezes the rubber pad 236 to overcome part of the depression in the well wall, thus avoiding the situation where the sensor body 1 contacts the well wall. After a period of use, a biofilm or chemical scale will grow on the surface of the sensor body 1. Periodically start the motor 221. The motor 221 drives the threaded rod 222 to rotate forward, which in turn drives the extrusion plate 223 to press down again. At this time, since the expansion mechanism 2 is already tightened, the system pressure is transferred to the cleaning mechanism. Liquid enters the cavity sealed by the rubber diaphragm sleeve 337 through the drain hole 213. The liquid pressure gradually expands the rubber diaphragm sleeve 337, pushing the sliding block 331 downwards within the long vertical tube 321. The sliding block 331, through the guide block 332, drives the fixing ring 333 and the cleaning ring 334 downwards along the guide groove 322 and the sliding groove. During this movement, the cleaning ring 334 scrapes the surface of the sensor body 1, removing the biofilm and scale. After the cleaning action is completed, the motor 221 reverses, driving the threaded rod 222 to move the extrusion plate 223 upwards. The extrusion plate 223 rises, and the liquid inside the rubber diaphragm sleeve 337 is no longer squeezed. The reset assembly 31... When work begins, the reset rope 312 is tightened under the action of the coil spring, pulling the threaded short rod 313 upward. The threaded short rod 313 engages with the thread inside the connecting annular column 336, thereby pulling the entire cleaning assembly 33 upward, so that the cleaning ring 334 returns to the initial position, ready for the next cleaning. When it is necessary to remove the device, the valve 232 in the fixed horizontal tube 231 is opened, and the elastic force of the spring 237 in the expansion assembly 23 pulls the sliding short rod 234 and the arc plate 235 to retract, the liquid should flow back, and the expansion assembly 23 is disengaged from the well wall.

[0031] The above embodiments are merely exemplary embodiments of the present invention and are not intended to limit the present invention. The scope of protection of the present invention is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to the present invention within its spirit and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of the present invention.

Claims

1. A groundwater temperature monitoring device for hydrogeological exploration, comprising a sensor body (1) and an extension mechanism (2) disposed above the sensor body (1), wherein a cleaning mechanism (3) is provided on one side of the extension mechanism (2), characterized in that: The expansion mechanism (2) includes a liquid storage component (21) disposed above the sensor body (1), a water pressure component (22) disposed above the liquid storage component (21), four sets of expansion components (23) disposed on the outside of the liquid storage component (21), and a counterweight (24) disposed on the side of the liquid storage component (21) opposite to the cleaning mechanism (3). The liquid storage assembly (21) includes a liquid storage shell (211) disposed above the sensor body (1). The liquid storage shell (211) has a liquid storage cavity (212) inside. The liquid storage shell (211) has a drain hole (213) below it. An external threaded ring (214) is fixedly connected to the lower end of the liquid storage shell (211). The position of the external threaded ring (214) corresponds to the drain hole (213). A limit rod (215) is fixedly connected to the upper part of the liquid storage shell (211). The liquid storage shell (211) has a through hole on the outside corresponding to the four sets of expansion components (23). The through hole is connected to the liquid storage cavity (212) and the drain hole (213).

2. The groundwater temperature monitoring device for hydrogeological exploration according to claim 1, characterized in that: The water pressurization assembly (22) includes a motor (221) fixedly installed on the upper end of the liquid storage shell (211). The output end of the motor (221) is fixedly connected to a threaded rod (222). The liquid storage shell (211) is provided with a pressing plate (223). The pressing plate (223) is provided with a threaded groove corresponding to the threaded rod (222). A rubber ring (224) is fixedly installed on the outside of the pressing plate (223). The pressing plate (223) is provided with a limiting through hole (225) corresponding to the limiting vertical rod (215).

3. The groundwater temperature monitoring device for hydrogeological exploration according to claim 2, characterized in that: The extension component (23) includes a fixed horizontal tube (231) fixedly connected to the outside of the liquid storage shell (211). The fixed horizontal tube (231) corresponds to the through hole opened on the liquid storage shell (211). A valve (232) is fixedly installed in the fixed horizontal tube (231) and the through hole on the liquid storage shell (211). A vertical rod (233) is fixedly installed inside the fixed horizontal tube (231). A sliding short rod (234) is slidably connected inside the fixed horizontal tube (231). A spring (237) is provided between the vertical rod (233) and the sliding short rod (234). An arc plate (235) is fixedly connected to the other end of the sliding short rod (234). A rubber pad (236) is fixedly connected to one side of the arc plate (235).

4. The groundwater temperature monitoring device for hydrogeological exploration according to claim 3, characterized in that: One end of the spring (237) is fixedly connected to one side of the vertical rod (233), and the other end of the spring (237) is fixedly connected to one end of the sliding short rod (234).

5. A groundwater temperature monitoring device for hydrogeological exploration according to claim 4, characterized in that: The upper end of the sensor body (1) is fixedly connected to a hollow vertical tube (11). The liquid storage shell (211) and the extrusion plate (223) are both provided with holes and slots corresponding to the hollow vertical tube (11). The holes and slots on the liquid storage shell (211) are fixedly connected to the hollow vertical tube (11). The holes and slots on the extrusion plate (223) are slidably connected to the hollow vertical tube (11). A connecting wire is fixedly provided on the sensor body (1). The connecting wire is located inside the hollow vertical tube (11).

6. The groundwater temperature monitoring device for hydrogeological exploration according to claim 1, characterized in that: The cleaning mechanism (3) includes a reset component (31) disposed above the liquid storage shell (211), a guide component (32) disposed below the liquid storage shell (211), and a cleaning component (33) disposed on one side of the guide component (32).

7. A groundwater temperature monitoring device for hydrogeological exploration according to claim 6, characterized in that: The reset assembly (31) includes a fixed shell (311) fixedly connected to the upper end of the liquid storage shell (211). The fixed shell (311) is provided with a coil spring and a winding rod. A reset rope (312) is wound on the winding rod. A threaded short rod (313) is fixedly connected to the other end of the reset rope (312).

8. A groundwater temperature monitoring device for hydrogeological exploration according to claim 7, characterized in that: The guide assembly (32) includes a long vertical tube (321), the upper end of which is rotatably connected to a rotating ring (324). A sliding groove (323) and a guide groove (322) are respectively opened on the outer side of the long vertical tube (321), and a thread is provided in the rotating ring (324).

9. A groundwater temperature monitoring device for hydrogeological exploration according to claim 8, characterized in that: The cleaning component (33) includes a sliding block (331) slidably disposed in a long vertical tube (321). A guide block (332) and a connecting horizontal plate (335) are fixedly connected to the outside of the sliding block (331). A fixing ring (333) is fixedly connected to one end of the guide block (332). A cleaning ring (334) is fixedly connected inside the fixing ring (333). A connecting ring column (336) is fixedly connected above the connecting horizontal plate (335). A rubber film sleeve (337) is fixedly disposed at the upper end of the sliding block (331). A connecting ring (338) is fixedly disposed above the rubber film sleeve (337). Threads are provided on both the inner and outer sides of the connecting ring (338). The outer thread of the connecting ring (338) corresponds to the inner thread of the rotating ring (324). The inner thread of the connecting ring (338) corresponds to the outer thread ring (214).

10. A groundwater temperature monitoring device for hydrogeological exploration according to claim 9, characterized in that: The connecting annular post (336) has internal threads, and the internal threads of the connecting annular post (336) correspond to the threaded short rod (313).

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