A sealing structure suitable for high / low temperature environments

Abstract

The utility model discloses a kind of sealing structure suitable for high temperature / low temperature environment, it is related to sealing technical field, specifically includes: solar water heater, drain pipe, connecting pipe, the outer surface of drain pipe and connecting pipe is equipped with sealing mechanism, the sealing mechanism is used to seal protection and detection treatment to the connecting place of drain pipe and connecting pipe, to assist adaptation high-low temperature environment.This device is by the adsorption of left magnetic plate and right magnetic plate in sealing mechanism, so that the silicon rubber inside left half circle sleeve pipe and right half circle sleeve pipe can be closely fitted in the connecting place of pipeline, complete sealing, by the high temperature resistance and material flexibility of silicon rubber itself, in the case of high and low temperature, can assist to strengthen the protection of pipeline connecting place, avoid the problem of sealing failure caused by temperature change in pipeline connecting place.This device can detect whether there is the problem of leakage in connecting place by the water absorption function of water absorption expansion block in detection component.

Description

Technical Field

[0001] This utility model relates to the field of sealing technology, specifically to a sealing structure suitable for high / low temperature environments. Background Technology

[0002] When installing solar water heaters, drainage pipes need to be pre-installed on outdoor walls. These pipes face complex temperature changes. In summer, the pipes are exposed to strong sunlight and the temperature can reach as high as 60°C, and the temperature of the discharged hot water is sometimes even higher. In winter, when the ambient temperature is low, the outdoor pipes are prone to freezing, which can cause the pipes to crack and seriously affect the normal operation and service life of the system.

[0003] Currently, the sealing of solar water heating pipe connections mostly relies on traditional rubber sealing rings or mechanical threaded connections. However, these sealing methods can become inadequate under high and low temperature impacts. For example, rubber sealing rings age and deform more rapidly at high temperatures, gradually losing elasticity and reducing their sealing performance; while low temperatures increase their brittleness, making them prone to cracking and damage, creating a hidden danger of water leakage. As for threaded pipe connections, high summer temperatures widen the thread gap and harden the rubber, while ice expansion inside the pipe in winter causes the threads to loosen under additional stress, all of which reduce the sealing effect of the connection.

[0004] Meanwhile, traditional sealing methods use adhesive tape or high-temperature resistant materials to wrap the joints. However, over time, the joints may become damaged or leak moisture, requiring repairs. But repairs require peeling off the tape and sealing materials layer by layer to open the joints, further complicating the repair process.

[0005] Therefore, it is necessary to develop a sealing structure suitable for high / low temperature environments to provide external sealing protection for pipe connections in order to solve the above problems. Utility Model Content

[0006] To address the shortcomings of existing technologies, the technical solution adopted by this utility model is: a sealing structure suitable for high / low temperature environments, specifically comprising:

[0007] The solar water heater includes a drain pipe and a connecting pipe. Both the drain pipe and the connecting pipe have sealing mechanisms installed on their outer surfaces. These sealing mechanisms are used to seal and protect the connection between the drain pipe and the connecting pipe, and to assist in adapting to high and low temperature environments. The drain pipe is used to drain water from inside the solar water heater and is installed at a high position on the side of the solar water heater. The drain pipe and the connecting pipe are connected to each other to drain water.

[0008] Furthermore, the sealing mechanism includes:

[0009] A sealing component for externally sealing the connection between the drain pipe and the connecting pipe;

[0010] The detection component is used to detect water leakage at the connection between the drain pipe and the connecting pipe.

[0011] Testing.

[0012] Furthermore, the sealing component includes:

[0013] The device comprises silicone rubber, on the outer surface of which is fitted with a right semi-circular sleeve. A right magnetic plate is installed on the inner wall of the right semi-circular sleeve. A limiting shaft is rotatably connected to the inner wall of the right semi-circular sleeve, and a left semi-circular sleeve is rotatably connected to the outer surface of the limiting shaft. The silicone rubber is a flexible material resistant to high and low temperatures, designed in a semi-circular shape to tightly fit the connection between the connecting pipe and the drain pipe. Both the right and left semi-circular sleeves are made of high and low temperature resistant metal materials, designed as two symmetrical semi-circular shapes, each covering half of the pipe connection, effectively fitting the pipe connection.

[0014] Furthermore, a support plate is installed on the upper surface of the left semicircular sleeve, a left magnetic plate is installed on the inner wall of the left semicircular sleeve, and a pull plate is fixed to the outer surface of the left semicircular sleeve. The pull plate can assist a person in using force to rotate the left semicircular sleeve around the surface of the limiting shaft.

[0015] Furthermore, the detection component is fixed to the lower surface of the sealing component, the silicone rubber is symmetrically arranged around the limiting axis, and a portion of the surface of the right semicircular sleeve is slidably connected to a portion of the surface of the left semicircular sleeve.

[0016] Furthermore, the support plates are symmetrically arranged around the limiting axis, and the left and right magnetic plates attract each other. In the initial state, the left and right semicircular sleeves are tightly fitted together by the left and right magnetic plates.

[0017] Furthermore, the detection component includes:

[0018] The detection mounting ring has a water-absorbing expansion block installed on its inner wall. A limiting plate is fixed to the inner wall of the detection mounting ring, and a power supply box is installed on the side of the detection mounting ring away from the connecting pipe. The limiting plate can limit the position of the water-absorbing expansion block to prevent it from shifting during water absorption and expansion. While water-absorbing resin is usually granular, it can be combined with rubber-like materials to form a composite material. This composite material expands and becomes elastic after absorbing water, providing sufficient force to move the micro-spring and the curved plate.

[0019] Furthermore, an alarm is installed on the side of the power supply box near the water-absorbing expansion block. A power module is installed on the inner wall of the power supply box, and the power module is electrically connected to a pressure sensor via wires. A rubber rod is installed on the side of the pressure sensor away from the power module. The power module supplies power to the alarm and the pressure sensor via wires, with the alarm's wires embedded in the inner wall of the power supply box.

[0020] Furthermore, an arc-shaped plate is fixed to the side of the rubber rod near the water-absorbing expansion block, and a micro-spring is installed on the side of the arc-shaped plate near the rubber rod. The arc-shaped plate is designed in a semi-circular shape, which can fit against the outer surface of the water-absorbing expansion block in the initial state, and the elastic force of the micro-spring is small.

[0021] Furthermore, the detection mounting rings are symmetrically arranged around the connecting pipe, and are respectively installed on the lower surfaces of the left semicircular sleeve and the right semicircular sleeve. The side of the arc-shaped plate away from the rubber rod contacts the side of the water-absorbing expansion block, and the side of the micro spring away from the arc-shaped plate is fixedly connected to the inner wall of the detection mounting ring.

[0022] Furthermore, the water-absorbing and expanding block is made of a composite of water-absorbing resin and rubber-like material.

[0023] Furthermore, the expansion force of the water-absorbing expansion block is greater than the elastic force of the micro spring.

[0024] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0025] 1. This device uses the adsorption force between the left and right magnetic plates in the sealing mechanism to ensure that the silicone rubber inside the left and right semicircular sleeves can fit tightly against the pipe connection, thus completing the seal. Due to the high temperature resistance and material flexibility of the silicone rubber itself, it can help strengthen the protection of the pipe connection under high and low temperature conditions, avoiding the problem of seal failure caused by temperature changes at the pipe connection.

[0026] 2. When the two semi-circular sleeves are closed, the supporting plate operates in conjunction with the drain pipe, tightly adhering to the outer wall of the drain pipe. Its upper bottom surface adheres to the transition surface of the drain pipe from thick to thin, using the strength of the drain pipe itself to provide a supporting foundation for the sealing mechanism. This effectively counteracts the downward stress caused by gravity and temperature difference, preventing the sealing mechanism from sliding down. Furthermore, compared to relying solely on the elastic adhesion of silicone rubber and magnetic adsorption, the positioning of the supporting plate ensures that both sleeves are supported by force, preventing tilting or warping due to excessive force on one side.

[0027] 3. This device, through the water absorption function of the water-absorbing expansion block in the detection component, in conjunction with the miniature spring, rubber rod, and pressure sensor, can detect whether there is water leakage at the connection point and trigger an alarm, solving the problem of water leakage caused by the aging of silicone rubber seals, which is difficult to detect in time.

[0028] 4. This device limits the position of the water-absorbing expansion block by using a limiting plate, which can prevent the water-absorbing expansion block from being placed randomly, causing displacement changes after water absorption and expansion. It also avoids the situation where the expansion direction is not ideal, which may result in the inability to push the arc plate and the micro spring. Ultimately, this will cause the pressure sensor to fail to detect the pressure, thus preventing the detection component from detecting whether there is water leakage at the connection.

[0029] 5. The quick separation function of the left and right semicircular sleeves in this device ensures easy removal and replacement of the silicone rubber and water-absorbing expansion block. This design avoids the problem of traditional sealing methods that use adhesive tape to wrap the joints, which requires peeling off the tape layer by layer for inspection and repair when the joints are damaged or water leaks. Attached Figure Description

[0030] Figure 1 This is the front view of this utility model;

[0031] Figure 2 This is a sectional view of the connecting pipe in this utility model;

[0032] Figure 3 This is a schematic diagram of the sealing mechanism of this utility model;

[0033] Figure 4 This is a schematic diagram of the sealing component of this utility model;

[0034] Figure 5 This is a cross-sectional view of the detection and installation ring of this utility model;

[0035] Figure 6 This is a cross-sectional view of the power supply box of this utility model;

[0036] Figure 7 This is a schematic diagram of the structure of the arc-shaped plate of this utility model.

[0037] In the diagram: 1. Solar water tank; 2. Drain pipe; 3. Connecting pipe; 4. Sealing mechanism; 41. Sealing component; 411. Silicone rubber; 412. Right semi-circular sleeve; 413. Right magnetic plate; 414. Limiting shaft; 415. Left semi-circular sleeve; 416. Support plate; 417. Left magnetic plate; 418. Pull plate; 42. Detection component; 421. Detection mounting ring; 422. Water absorption expansion block; 423. Limiting plate; 424. Power supply box; 425. Alarm; 426. Power module; 427. Pressure sensor; 428. Rubber rod; 429. Arc plate; 430. Miniature spring. Detailed Implementation

[0038] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose. Example 1

[0039] Please see Figure 1 - Figure 4 This utility model provides a technical solution: a sealing structure suitable for high / low temperature environments, specifically comprising:

[0040] The solar water heater consists of a solar water tank 1, a drain pipe 2, and a connecting pipe 3. Both the drain pipe 2 and the connecting pipe 3 have sealing mechanisms 4 installed on their outer surfaces. These sealing mechanisms 4 are used to seal and protect the connection between the drain pipe 2 and the connecting pipe 3, and to assist in adapting to high and low temperature environments. The drain pipe 2 is used to drain water from inside the solar water tank 1 and is installed at a high point on the side of the solar water tank 1. The drain pipe 2 and the connecting pipe 3 are connected to each other to drain water.

[0041] Sealing mechanism 4 includes:

[0042] Sealing component 41 is used to externally seal the connection between drain pipe 2 and connecting pipe 3;

[0043] The detection component 42 is used to detect water leakage at the connection between the drain pipe 2 and the connecting pipe 3.

[0044] Sealing component 41 includes:

[0045] Silicone rubber 411 has a right semi-circular sleeve 412 mounted on its outer surface. A right magnetic plate 413 is mounted on the inner wall of the right semi-circular sleeve 412. A limiting shaft 414 is rotatably connected to the inner wall of the right semi-circular sleeve 412, and a left semi-circular sleeve 415 is rotatably connected to the outer surface of the limiting shaft 414. The silicone rubber 411 is a flexible material resistant to high and low temperatures, designed in a semi-circular shape to fit tightly against the connection between the connecting pipe 3 and the drain pipe 2. Both the right semi-circular sleeve 412 and the left semi-circular sleeve 415 are made of metal materials resistant to high and low temperatures, designed as two symmetrical semi-circular shapes. Each semi-circular sleeve covers half of the pipe connection, effectively fitting the pipe connection.

[0046] A support plate 416 is installed on the upper surface of the left semicircular sleeve 415, a left magnetic plate 417 is installed on the inner wall of the left semicircular sleeve 415, and a pull plate 418 is fixed to the outer surface of the left semicircular sleeve 415. The pull plate 418 can assist a person in using force to rotate the left semicircular sleeve 415 around the surface of the limiting shaft 414.

[0047] The detection component 42 is fixed to the lower surface of the sealing component 41. The silicone rubber 411 is symmetrically arranged with the limiting shaft 414 as the center. Part of the surface of the right semicircular sleeve 412 is slidably connected to part of the surface of the left semicircular sleeve 415.

[0048] The support plate 416 is symmetrically arranged around the limiting shaft 414, and the left magnetic plate 417 and the right magnetic plate 413 are attracted to each other. In the initial state, the left semicircular sleeve 415 and the right semicircular sleeve 412 are tightly fitted together by the left magnetic plate 417 and the right magnetic plate 413.

[0049] The working principle is as follows:

[0050] First, the connecting pipe 3 is connected to the drain pipe 2 on one side of the solar water heater 1, and the connection between the two is sealed by the sealing mechanism 4.

[0051] In the initial state, due to the attraction between the left magnetic plate 417 and the right magnetic plate 413, the left semicircular sleeve 415 and the right semicircular sleeve 412 are tightly fitted together. The user pulls the left semicircular sleeve 415 and the right semicircular sleeve 412 away from each other, causing them to separate. During this process, the left semicircular sleeve 415 and the right semicircular sleeve 412 drive the silicone rubber 411 to rotate around the outer surface of the limiting shaft 414 until they are separated at a certain angle. Then, they are moved to the connection point between the connecting pipe 3 and the drain pipe 2, so that the connection point is located at the center of the left semicircular sleeve 415 and the right semicircular sleeve 412. At this time, the user closes the left semicircular sleeve 415 and the right semicircular sleeve 412, and the two are tightly fitted together again under the attraction of the left magnetic plate 417 and the right magnetic plate 413. Therefore, the silicone rubber 411 on both sides is also tightly fitted to the surface of the connection point under the merging of the two sleeves.

[0052] When the pipe expands due to thermal expansion, the silicone rubber 411, due to its flexibility, is compressed and can tightly adhere to the pipe surface, effectively preventing sealing gaps caused by pipe expansion, avoiding liquid leakage, and thus enhancing the protection of pipe joints and ensuring connection reliability. Conversely, when the pipe contracts due to low temperatures, the silicone rubber 411 expands slightly due to its own elasticity, still tightly adhering to the pipe, preventing leakage problems caused by tiny gaps created by pipe contraction, further strengthening the protection of pipe joints. This flexible adaptability to temperature changes allows silicone rubber 411 seals to stably protect pipe joints in both high and low temperature environments, preventing seal failure caused by temperature changes, extending the service life of the pipeline system, and ensuring its stable operation under different seasonal temperatures.

[0053] The drain pipe 2 and the connecting pipe 3 are vertically arranged. When the two semi-circular sleeves are closed together, they can also drive the operation of the support plate 416, so that it fits tightly against the outer wall of the drain pipe 2. The bottom surface of the upper part of the support plate 416 also fits against the outer surface of the drain pipe 2. This outer surface is the transition surface from coarse to fine on the outside of the drain pipe 2. Therefore, multiple support plates 416 can provide a solid support foundation for the entire sealing mechanism 4 with the structural strength of the drain pipe 2 itself. This design effectively offsets the downward stress caused by gravity and temperature difference, and avoids the overall downward sliding of the sealing mechanism 4. It is difficult to maintain stability for a long time by relying solely on the elastic adhesion of the silicone rubber 411 and the adsorption force of the left and right magnetic plates 413. Multiple symmetrically distributed support plates 416 can cleverly solve this problem. The position layout ensures that the semi-circular sleeves are supported by force and also avoids the problem of tilting or tilting caused by excessive gravity on one side. Example 2

[0054] Please see Figure 1 - Figure 7 This utility model provides a technical solution: based on embodiment one, the detection component 42 includes:

[0055] A detection mounting ring 421 is included, and a water-absorbing expansion block 422 is installed on its inner wall. A limiting plate 423 is fixedly connected to the inner wall of the detection mounting ring 421. A power supply box 424 is installed on the side of the detection mounting ring 421 away from the connecting pipe 3. The limiting plate 423 can limit the position of the water-absorbing expansion block 422 to prevent it from shifting during the water absorption and expansion process. Since the water-absorbing resin is usually granular, it can be combined with rubber-like materials to form a composite material. This composite material expands after absorbing water and has a certain degree of elasticity, providing sufficient force to push the movement of the micro spring 430 and the arc-shaped plate 429.

[0056] An alarm 425 is installed on the side of the power supply box 424 near the water-absorbing expansion block 422. A power module 426 is installed on the inner wall of the power supply box 424. The power module 426 is electrically connected to a pressure sensor 427 via wires. A rubber rod 428 is provided on the side of the pressure sensor 427 away from the power module 426. The power module 426 supplies power to the alarm 425 and the pressure sensor 427 via wires, with the wires of the alarm 425 embedded in the inner wall of the power supply box 424.

[0057] An arc-shaped plate 429 is fixed to the side of the rubber rod 428 near the water-absorbing expansion block 422, and a miniature spring 430 is installed on the side of the arc-shaped plate 429 near the rubber rod 428. The arc-shaped plate 429 is set in a semi-circular shape, which can fit against the outer surface of the water-absorbing expansion block 422 in the initial state, and the elastic force of the miniature spring 430 is small.

[0058] The detection and installation ring 421 is symmetrically arranged with the connecting pipe 3 as the center. The detection and installation ring 421 is installed on the lower surface of the left semi-circular sleeve 415 and the right semi-circular sleeve 412 respectively. The side of the arc plate 429 away from the rubber rod 428 contacts the side of the water-absorbing expansion block 422. The side of the micro spring 430 away from the arc plate 429 is fixed to the inner wall of the detection and installation ring 421.

[0059] The water-absorbing expansion block 422 is made of a composite of water-absorbing resin and rubber-like material.

[0060] The expansion force of the water-absorbing expansion block 422 is greater than the elastic force of the miniature spring 430.

[0061] The working principle is as follows:

[0062] Based on the sealing mechanism 4, in which the pipe connection is sealed by two semi-circular sleeves and silicone rubber 411, the connection may still be damaged, leading to water leakage. For example, the silicone rubber 411 sealing material may age after long-term use, resulting in decreased elasticity and poor sealing performance. Therefore, it is necessary to set up a detection component 42 to detect the connection and determine whether there is water leakage. If there is water leakage, it should be repaired as soon as possible.

[0063] When the left semicircular sleeve 415 and the right semicircular sleeve 412 are combined, they can also drive the rotation of the detection mounting ring 421, so that the water absorption expansion block 422 inside the detection mounting ring 421 is attached to the bottom of the connection. When the connection is damaged due to aging over the years, water may leak from the connection. When water slides down the surface of the connection, it comes into contact with the water-absorbing expansion block 422. After absorbing water, the water-absorbing expansion material expands rapidly, which can compress the arc plate 429 and the miniature spring 430. The arc plate 429 is made of strong plastic. After being compressed, the arc plate 429 can further push the rubber rod 428 to move closer to the pressure sensor 427. In the initial state, there is a small distance between the rubber rod 428 and the pressure sensor 427. When the rubber rod 428 is pushed and moves, it can collide with the pressure sensor 427. After the pressure sensor 427 detects the pressure change, it can output an electrical signal, which is then directly transmitted to the alarm 425. The alarm 425 has an integrated signal processing module, which can be used to amplify and process the electrical signal output by the pressure sensor 427 to ensure the reliability of signal transmission.

[0064] When the alarm 425 sounds, it indicates that the water-absorbing expansion block 422 has absorbed water, further indicating that there is a water leakage problem at the connection between the two pipes. Therefore, the alarm 425 can effectively remind the user that there is a water leakage and that immediate repairs are needed to prevent the user from being unaware of the problem and causing water to continue to leak from the connection.

[0065] The limiting plates 423 on both sides of the water-absorbing expansion block 422 can limit the position of the water-absorbing expansion block 422, preventing displacement of the water-absorbing expansion block 422 after it absorbs water and expands. This limits the expansion range and makes the expansion direction of the water-absorbing expansion block 422 more stable, ensuring that its back side is always in contact with the arc plate 429. This reliably transmits the expansion force and avoids the problem of improper placement leading to an undesirable expansion direction, which could result in the inability to push the arc plate 429 and the miniature spring 430, and further cause the pressure sensor 427 to fail to detect the pressure signal.

[0066] Finally, the entire sealing component 41 and detection component 42 are designed so that when the silicone rubber 411 and the water-absorbing expansion block 422 fail and need to be replaced, the left semi-circular sleeve 415 and the right semi-circular sleeve 412 can be quickly separated, and then the silicone rubber 411 and the water-absorbing expansion tube can be taken out. Then, new silicone rubber 411 and water-absorbing expansion block 422 can be replaced. Disassembly and replacement are very convenient, avoiding the problem of using adhesive tape to wrap around the joint, which requires peeling off the adhesive tape layer by layer when the joint is damaged and water leaks, before inspection and repair.

[0067] The workflow is as follows:

[0068] First, through the adsorption force between the left magnetic plate 417 and the right magnetic plate 413 in the sealing mechanism 4, the silicone rubber 411 inside the left semi-circular sleeve 415 and the right semi-circular sleeve 412 can be tightly attached to the connection of the pipe to complete the seal. Through the high temperature resistance and material flexibility of the silicone rubber 411 itself, it can help strengthen the protection of the pipe connection under high and low temperature conditions, and avoid the problem of sealing failure caused by temperature changes at the pipe connection.

[0069] Subsequently, when the two semi-circular sleeves close, the support plate 416 operates in conjunction with the drain pipe 2, tightly adhering to the outer wall. Its upper bottom surface adheres to the transition surface of the drain pipe 2 from thick to thin, providing a supporting foundation for the sealing mechanism 4 with the strength of the drain pipe 2 itself. This effectively counteracts the downward stress caused by gravity and temperature difference, preventing the sealing mechanism 4 from sliding down. Furthermore, compared to relying solely on the elastic adhesion of silicone rubber 411 and magnetic adsorption, the positioning of the support plate 416 ensures that both sleeves are supported by force, preventing tilting or warping due to excessive force on one side.

[0070] By utilizing the water absorption function of the water-absorbing expansion block 422 in the detection component 42, in conjunction with the miniature spring 430, rubber rod 428, and pressure sensor 427, the system can detect whether there is water leakage at the connection point and trigger an alarm, thus solving the problem of water leakage caused by the aging of the silicone rubber 411 seal, which is difficult to detect in time.

[0071] By limiting the position of the water-absorbing expansion block 422 by the limiting plate 423, the water-absorbing expansion block 422 can be prevented from being placed randomly, which would cause displacement changes after water absorption and expansion. This further avoids the situation where the expansion direction is not ideal, which would result in the inability to push the arc plate 429 and the miniature spring 430. Ultimately, this would cause the pressure sensor 427 to not sense the pressure, thus causing the detection component 42 to be unable to detect whether there is a water leakage at the connection.

[0072] Finally, the quick separation function of the left semicircular sleeve 415 and the right semicircular sleeve 412 ensures easy removal and replacement of the silicone rubber 411 and the water-absorbing expansion block 422. This design avoids the problem of traditional sealing methods that use adhesive tape wrapped around the joint, which requires peeling off the tape layer by layer for inspection and repair when the joint is damaged or leaks moisture.

[0073] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A sealing structure suitable for high / low temperature environments, specifically comprising: A solar water heater (1), a drain pipe (2), and a connecting pipe (3) are characterized in that: a sealing mechanism (4) is installed on the outer surface of both the drain pipe (2) and the connecting pipe (3). The sealing mechanism (4) is used to seal and protect the connection between the drain pipe (2) and the connecting pipe (3) and to perform detection treatment to help adapt to high and low temperature environments.

2. The sealing structure suitable for high / low temperature environments according to claim 1, characterized in that: The sealing mechanism (4) includes: A sealing component (41) is used to externally seal the connection between the drain pipe (2) and the connecting pipe (3); The detection component (42) is used to detect water leakage at the connection between the drain pipe (2) and the connecting pipe (3).

3. The sealing structure suitable for high / low temperature environments according to claim 2, characterized in that: The sealing component (41) includes: Silicone rubber (411), with a right semicircular sleeve (412) installed on the outer surface of the silicone rubber (411), a right magnetic plate (413) installed on the inner wall of the right semicircular sleeve (412), a limit shaft (414) rotatably connected to the inner wall of the right semicircular sleeve (412), and a left semicircular sleeve (415) rotatably connected to the outer surface of the limit shaft (414).

4. The sealing structure suitable for high / low temperature environments according to claim 3, characterized in that: A support plate (416) is installed on the upper surface of the left semicircular sleeve (415), a left magnetic plate (417) is installed on the inner wall of the left semicircular sleeve (415), and a pull plate (418) is fixed to the outer surface of the left semicircular sleeve (415).

5. The sealing structure suitable for high / low temperature environments according to claim 4, characterized in that: The detection component (42) is fixed to the lower surface of the sealing component (41), the silicone rubber (411) is symmetrically arranged with the limiting shaft (414) as the center, and part of the surface of the right semicircular sleeve (412) is slidably connected to part of the surface of the left semicircular sleeve (415).

6. The sealing structure suitable for high / low temperature environments according to claim 5, characterized in that: The support plate (416) is symmetrically arranged with the limiting shaft (414) as the center, and the left magnetic plate (417) and the right magnetic plate (413) are attracted to each other.

7. The sealing structure suitable for high / low temperature environments according to claim 2, characterized in that: The detection component (42) includes: The detection mounting ring (421) has a water-absorbing expansion block (422) installed on its inner wall, a limiting plate (423) fixedly connected to its inner wall, and a power box (424) installed on the side of the detection mounting ring (421) away from the connecting pipe (3).

8. The sealing structure suitable for high / low temperature environments according to claim 7, characterized in that: An alarm (425) is installed on the side of the power box (424) near the water-absorbing expansion block (422). A power module (426) is installed on the inner wall of the power box (424). A pressure sensor (427) is electrically connected to the power module (426) via a wire. A rubber rod (428) is provided on the side of the pressure sensor (427) away from the power module (426).

9. The sealing structure suitable for high / low temperature environments according to claim 8, characterized in that: An arc-shaped plate (429) is fixed to the side of the rubber rod (428) near the water-absorbing expansion block (422), and a miniature spring (430) is installed on the side of the arc-shaped plate (429) near the rubber rod (428).

10. The sealing structure suitable for high / low temperature environments according to claim 9, characterized in that: The detection mounting ring (421) is symmetrically arranged with the connecting pipe (3) as the center. The detection mounting ring (421) is installed on the lower surface of the left semicircular sleeve (415) and the right semicircular sleeve (412) respectively. The side of the arc plate (429) away from the rubber rod (428) is in contact with the side of the water-absorbing expansion block (422). The side of the micro spring (430) away from the arc plate (429) is fixed to the inner wall of the detection mounting ring (421).

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