A pipe protection assembly

Abstract

The utility model belongs to the technical field of protection assembly, especially a pipeline protection assembly, including first pipe body, second pipe body, multi -functional protection mechanism, multi -functional protection mechanism includes lower shell, upper shell, the top of lower shell and the bottom of upper shell all are equipped with the pressing plate, the pressing plate top of lower shell and the pressing plate bottom of upper shell all are equipped with the gasket, the pressing plate of lower shell and the pressing plate of upper shell are fixed through lock bolt, the side of lower shell is connected with liquid level indicating pipe, the outside of liquid level indicating pipe is equipped with first protection cover, the bottom of lower shell is equipped with the liquid drain bolt hole, the inner side screw thread connection of liquid drain bolt hole has the plugging bolt, the device is through the lower shell, upper shell to the first pipe body, the connecting place of second pipe body plays effective protection, promotes structural stability, still can send alarm signal to terminal in time through wireless communication module when leaking, timely remind maintenance personnel to come to deal with maintenance.

Description

Technical Field

[0001] This utility model belongs to the field of protective component technology, specifically relating to a pipeline protective component. Background Technology

[0002] In the petrochemical industry, pipelines serve as the core carriers for transporting media (crude oil, refined oil, chemical raw materials, corrosive fluids, etc.). Their connections (such as flange connections and welded joints) are the weakest links in the system's operation. Long-term exposure to high pressure, media corrosion, and vibration impacts easily leads to problems such as aging seals, loose bolts, and weld cracks, causing media leaks. Once a leak occurs, it not only wastes raw materials and pollutes the environment, but may also cause major safety accidents such as fires, explosions, and personnel poisoning due to the spread of flammable, explosive, or toxic media. Therefore, the protection and leak control of pipeline connections are crucial aspects of safe production in the petrochemical industry.

[0003] Existing pipeline protection components are mostly simple metal sheaths or insulation layers, which can only play a role in preventing impact and heat preservation. They lack targeted protection design. First, they cannot slow down the aging of flange bolts and seals. Long-term exposure to high temperature and corrosive environment leads to rapid component wear and high risk of leakage. Second, they lack leakage sealing and alarm functions. Once a leak occurs at the connection, the medium directly seeps into the environment and spreads rapidly, which can easily create safety hazards. Leakage monitoring relies on manual inspection or distributed sensors, which can easily lead to untimely detection of leaks. Utility Model Content

[0004] To address the above problems, the purpose of this utility model is to provide a pipeline protection component. This device effectively protects the connection between the first and second pipe bodies through the lower and upper jackets, reducing the aging rate of the bolts used to connect the first and second pipe bodies and the seals between them. Combined with the supporting mechanism, it can also reduce the impact of shear forces on the connection between the first and second pipe bodies, improving structural stability. In the event of a leak, it can also promptly send an alarm signal to the terminal via a wireless communication module, reminding maintenance personnel to handle and repair the issue.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pipeline protection component, comprising a first pipe body, a second pipe body, and a multi-functional protection mechanism. The multi-functional protection mechanism includes a lower jacket and an upper jacket. Pressure plates are provided at the top of the lower jacket and the bottom of the upper jacket. Sealing gaskets are provided at the top of the pressure plates of the lower jacket and the bottom of the pressure plates of the upper jacket. The pressure plates of the lower jacket and the upper jacket are fixed together by locking bolts. A liquid level indicator tube is connected to the side of the lower jacket. A first protective cover is provided on the outside of the liquid level indicator tube. A drain bolt hole is provided at the bottom of the lower jacket. A sealing bolt is threaded into the inner side of the drain bolt hole. An alarm device is provided on the side of the lower jacket. An alarm triggering mechanism is connected to one side of the liquid level indicator tube. The bottom of the multi-functional protection mechanism is connected to a support mechanism. The support mechanism includes a base. A bolt hole passes through the top and bottom of the base and is fixed to the ground by bolts. A lifting adjustment mechanism is provided at the top of the base.

[0006] As a further improvement to the above technical solution: the first pipe body and the second pipe body are fixed together by bolted flanges, and the lower jacket and the upper jacket are sleeved on the outside of the connection between the lower jacket and the upper jacket.

[0007] To observe the liquid level inside the liquid level indicator tube:

[0008] As a further improvement to the above technical solution: an observation groove is provided through one side of the first protective cover, and the liquid level indicator tube includes two parts, namely a metal tube at the bottom connected to the lower jacket, and a transparent glass tube at the top of the metal tube.

[0009] The first protective cover protects the transparent glass tube part of the liquid level indicator tube. The observation slot allows for convenient and intuitive observation of the liquid level inside the liquid level indicator tube.

[0010] To provide support for the pipe connections:

[0011] As a further improvement to the above technical solution: the lifting and adjusting mechanism includes a telescopic cavity fixed to the top of the base, a telescopic rod is inserted and installed inside the telescopic cavity, a transmission screw is rotatably installed inside the telescopic cavity, a first bevel gear is sleeved on the outer side of the transmission screw, a rotating shaft is rotatably installed through the side wall of the telescopic cavity, a second bevel gear is connected to one end of the rotating shaft, the second bevel gear meshes with the first bevel gear, a hexagonal joint is provided at the other end of the rotating shaft, a bracket is provided at the top of the telescopic cavity, and the top of the bracket is fixed to the lower clamp.

[0012] The beneficial effects of this improvement are as follows: By connecting a wrench to a hexagonal connector and loosening the locking nut, the wrench is used to rotate the hexagonal connector, driving the shaft to rotate along with the second bevel gear. The transmission between the second bevel gear and the first bevel gear drives the transmission screw to rotate. The transmission between the transmission screw and the telescopic rod drives the telescopic rod to rise and fall, thereby adjusting the height of the bracket and the lower sleeve. This allows the lower sleeve to contact the pipe surface near the connection point of the first and second pipe bodies. Through the adjustable overall height support structure, this device can be used to protect and support pipes at different installation heights within a certain range.

[0013] To lock the shaft:

[0014] As a further improvement to the above technical solution: the part of the rotating shaft located outside the telescopic cavity is threaded and threadedly connected to the locking screw sleeve.

[0015] The beneficial effect of this improvement is that after the locking nut is tightened, the shaft can be locked to prevent it from rotating.

[0016] As a further improvement to the above technical solution: the alarm device includes a second protective cover fixed to the side of the lower sleeve, and the inner side of the second protective cover is provided with a controller and a wireless communication module.

[0017] To trigger the alarm:

[0018] As a further improvement to the above technical solution: the alarm triggering mechanism includes a connecting pipe connected to the liquid level indicator pipe, a buoyancy chamber is provided at the top of the connecting pipe, a guide rod is provided inside the buoyancy chamber, a floating block is slidably installed on the outside of the guide rod, a partition is provided inside the buoyancy chamber, a through hole is provided between the top and bottom of the partition, a trigger switch is provided on the inner side of the buoyancy chamber above the partition, a sealing ring is provided on the inner side of the through hole, and the trigger switch is electrically connected to the controller.

[0019] The beneficial effects of this improvement are as follows: When the medium in the pipeline leaks through the connection between the first and second pipe bodies, as the liquid level rises, the medium enters the connecting pipe through the liquid level indicator pipe and then enters the buoyancy chamber. The buoyancy causes the buoyancy chamber to float upward along the guide rod. As the height of the floating block continues to rise, when the top pressing block of the floating block is fully inserted into the through hole, the top surface of the floating block abuts against the baffle plate, and the baffle plate seals the through hole. In conjunction with the sealing ring, this prevents the medium from entering above the baffle plate. At the same time, the pressing block at the top of the floating block triggers the trigger switch, which transmits a signal to the controller. The controller then controls the wireless communication module to send an alarm signal to a terminal such as the monitoring center, promptly reminding maintenance personnel to come and handle the repair.

[0020] In summary, the beneficial effects of this case are as follows:

[0021] This device effectively protects the connection between the first and second pipe bodies through the lower and upper jackets, reducing the aging rate of the bolts used to connect the first and second pipe bodies and the seals between them. Combined with the supporting mechanism, it can also reduce the shear force between the first and second pipe bodies and improve structural stability.

[0022] If a leak occurs at the connection between the first and second pipe bodies, the leaking medium can be contained within the space between the lower and upper jackets and the first and second pipe bodies by using the cooperation of the lower jacket, upper jacket, pressure plate, and sealing gasket, preventing direct leakage to the ground. The fluid medium first accumulates in the internal space of the lower jacket and flows into the liquid level indicator pipe. As the liquid level rises, the medium enters the connecting pipe through the liquid level indicator pipe and then enters the buoyancy chamber. The buoyancy causes the buoyancy chamber to float upward along the guide rod. As the height of the floating block continues to rise, when the top pressing block of the floating block is fully inserted into the through hole, the top surface of the floating block abuts against the partition plate, and the partition plate seals the through hole. In cooperation with the sealing ring, this prevents the medium from entering above the partition plate. At the same time, the pressing block at the top of the floating block triggers the trigger switch, which transmits a signal to the controller. The controller then controls the wireless communication module to send an alarm signal to the terminal, promptly reminding maintenance personnel to handle and repair the issue.

[0023] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the isometric structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the bottom view of this utility model;

[0026] Figure 3 This is a side sectional view of the present invention;

[0027] Figure 4 This is a schematic diagram showing the separation of the lower and upper jackets in this utility model.

[0028] Figure 5 This is a cross-sectional structural diagram of the lower and upper jackets in this utility model.

[0029] In the diagram: 11. First tube body; 12. Second tube body; 2. Support mechanism; 21. Base; 22. Lifting and adjusting mechanism; 221. Telescopic cavity; 222. Telescopic rod; 223. Transmission screw; 224. First bevel gear; 225. Rotating shaft; 226. Second bevel gear; 227. Hexagonal connector; 228. Locking nut; 23. Bracket; 3. Multifunctional protection mechanism; 31. Lower sleeve; 32. Upper sleeve; 33. Pressure plate; 34. 35. Sealing gasket; 36. Locking bolt; 37. Liquid level indicator tube; 38. First protective cover; 39. Drain bolt hole; 30. Sealing bolt; 31. Alarm device; 32. Second protective cover; 33. Controller; 34. Wireless communication module; 45. Alarm triggering mechanism; 46. Connecting pipe; 47. Buoyancy chamber; 48. Guide rod; 49. Floating block; 40. Partition plate; 41. Through hole; 42. Trigger switch; 43. Sealing ring. Detailed Implementation

[0030] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.

[0031] like Figure 1-5 As shown, a pipeline protection assembly includes a first pipe body 11, a second pipe body 12, and a multi-functional protection mechanism 3. The multi-functional protection mechanism 3 includes a lower jacket 31 and an upper jacket 32. Pressure plates 33 are provided at the top of the lower jacket 31 and the bottom of the upper jacket 32. Sealing gaskets 34 are provided at the top of the pressure plates 33 of the lower jacket 31 and the bottom of the pressure plates 33 of the upper jacket 32. The pressure plates 33 of the lower jacket 31 and the upper jacket 32 ​​are fixed together by locking bolts 35. A liquid level indicator tube 36 is connected to the side of the lower jacket 31. The outer side of the 6 is provided with a first protective cover 37. The bottom of the lower jacket 31 is provided with a drain bolt hole 381. The inner side of the drain bolt hole 381 is threaded with a sealing bolt 382. The side of the lower jacket 31 is provided with an alarm device 39. One side of the liquid level indicator tube 36 is connected with an alarm triggering mechanism 4. The bottom of the multi-functional protection mechanism 3 is connected to the support mechanism 2. The support mechanism 2 includes a base 21. The top and bottom of the base 21 are connected by a bolt hole and fixed to the ground by bolts. The top of the base 21 is provided with a lifting adjustment mechanism 22.

[0032] This device effectively protects the connection between the first pipe body 11 and the second pipe body 12 through the lower sleeve 31 and the upper sleeve 32, reducing the aging rate of the bolts used to connect the first pipe body 11 and the second pipe body 12 as well as the seals between the first pipe body 11 and the second pipe body 12. In conjunction with the supporting effect of the support mechanism 2, it can also reduce the influence of shear force on the connection between the first pipe body 11 and the second pipe body 12, thereby improving the structural stability.

[0033] If a leak occurs at the connection between the first pipe body 11 and the second pipe body 12, the leaking medium can be contained within the space between the lower jacket 31, the upper jacket 32, the pressure plate 33, and the sealing gasket 34, preventing direct leakage to the ground. The fluid medium first accumulates in the internal space of the lower jacket 31 and flows into the level indicator pipe 36. As the medium level rises, the medium enters the connecting pipe 41 through the level indicator pipe 36 and then into the buoyancy chamber 42, where buoyancy drives the buoyancy chamber 42. 2. The floating block 44 floats upward along the guide rod 43. As the height of the floating block 44 increases, when the top pressing block of the floating block 44 is fully inserted into the through hole 46, the top surface of the floating block 44 abuts against the partition plate 45, and the partition plate 45 seals the through hole 46. This works in conjunction with the sealing ring 48 to prevent the medium from entering above the partition plate 45. At the same time, the pressing block at the top of the floating block 44 triggers the trigger switch 47. The trigger switch 47 transmits a signal to the controller 392. The controller 392 controls the wireless communication module 393 to send an alarm signal to the terminal, such as the monitoring center, to promptly remind maintenance personnel to come and handle the maintenance.

[0034] The first pipe body 11 and the second pipe body 12 are fixed together by bolted flanges, and the lower sleeve 31 and the upper sleeve 32 are sleeved on the outside of the connection between the lower sleeve 31 and the upper sleeve 32.

[0035] An observation groove is provided through one side of the first protective cover 37. The liquid level indicator tube 36 includes two parts: a metal tube at the bottom connected to the lower jacket 31, and a transparent glass tube at the top of the metal tube.

[0036] The first protective cover 37 protects the transparent glass tube part of the liquid level indicator tube 36. The liquid level height inside the liquid level indicator tube 36 can be easily and intuitively observed through the setting of the observation tank.

[0037] The lifting and adjusting mechanism 22 includes a telescopic cavity 221 fixed to the top of the base 21. A telescopic rod 222 is inserted and installed inside the telescopic cavity 221. A transmission screw 223 is rotatably installed inside the telescopic cavity 221. A first bevel gear 224 is sleeved on the outer side of the transmission screw 223. A rotating shaft 225 is rotatably installed through the side wall of the telescopic cavity 221. One end of the rotating shaft 225 is connected to a second bevel gear 226, which meshes with the first bevel gear 224. The other end of the rotating shaft 225 is provided with a hexagonal connector 227. A bracket 23 is provided on the top of the telescopic cavity 221, and the top of the bracket 23 is fixed to the lower clamp 31.

[0038] Connect the wrench to the hexagonal connector 227, loosen the locking nut 228, and then use the wrench to rotate the hexagonal connector 227 to drive the rotating shaft 225 and the second bevel gear 226 to rotate. Through the transmission between the second bevel gear 226 and the first bevel gear 224, the transmission screw 223 is driven to rotate. Through the transmission between the transmission screw 223 and the telescopic rod 222, the telescopic rod 222 is driven to rise and fall, thereby adjusting the height of the bracket 23 and the lower clamp 31, so that the lower clamp 31 contacts the pipe surface of the first pipe body 11 and the second pipe body 12 near the connection. Through the support structure with adjustable overall height, this device can be used for the protection and support of pipes at different installation heights within a certain range.

[0039] The rotating shaft 225 has threads on the outer surface of the telescopic cavity 221 and is threadedly connected to the locking sleeve 228.

[0040] After the locking nut 228 is tightened, the rotating shaft 225 can be locked to prevent it from rotating.

[0041] The alarm device 39 includes a second protective cover 391 fixed to the side of the lower sleeve 31, and a controller 392 and a wireless communication module 393 are provided on the inner side of the second protective cover 391.

[0042] The alarm triggering mechanism 4 includes a connecting pipe 41 connected to the liquid level indicator pipe 36. A buoyancy chamber 42 is provided at the top of the connecting pipe 41. A guide rod 43 is provided inside the buoyancy chamber 42. A floating block 44 is slidably installed on the outside of the guide rod 43. A partition 45 is provided inside the buoyancy chamber 42. A through hole 46 is provided between the top and bottom of the partition 45. A trigger switch 47 is provided on the inner side of the buoyancy chamber 42 above the partition 45. A sealing ring 48 is provided on the inner side of the through hole 46. The trigger switch 47 is electrically connected to the controller 392.

[0043] When the medium in the pipeline leaks through the connection between the first pipe body 11 and the second pipe body 12, as the liquid level rises, the medium enters the connecting pipe 41 through the liquid level indicator pipe 36 and then enters the buoyancy chamber 42. The buoyancy causes the buoyancy chamber 42 to float upward along the guide rod 43. As the height of the floating block 44 continues to rise, when the top pressing block of the floating block 44 is fully inserted into the through hole 46, the top surface of the floating block 44 abuts against the partition plate 45, and the partition plate 45 seals the through hole 46. In conjunction with the sealing ring 48, this prevents the medium from entering above the partition plate 45. At the same time, the pressing block at the top of the floating block 44 triggers the trigger switch 47, which transmits a signal to the controller 392. The controller 392 controls the wireless communication module 393 to send an alarm signal to a terminal such as the monitoring center, so as to promptly remind maintenance personnel to come and handle the maintenance.

[0044] The working principle and usage process of this utility model are as follows: When using this device, the base 21 is fixed to the ground with bolts. Then, a wrench is used to connect to the hexagonal connector 227. After loosening the locking nut 228, the wrench is used to rotate the hexagonal connector 227 to drive the rotating shaft 225 and the second bevel gear 226 to rotate. Through the transmission between the second bevel gear 226 and the first bevel gear 224, the transmission screw 223 is driven to rotate. Through the transmission between the transmission screw 223 and the telescopic rod 222, the telescopic rod 222 is driven to rise and fall, thereby adjusting the height of the bracket 23 and the lower clamp 31, so that the lower clamp 31 contacts the pipe surface of the first pipe body 11 and the second pipe body 12 near the connection point. Then, the upper clamp 32 is aligned vertically with the lower clamp 31 and locked. Bolt 35 connects the pressure plate 33 on the lower sleeve 31 and the pressure plate 33 on the upper sleeve 32, locking the upper sleeve 32 and the lower sleeve 31 together. This allows the lower sleeve 31 and the upper sleeve 32 to work together, using the pressure plate 33 to securely clamp the first pipe body 11 and the second pipe body 12. During tightening, the sealing gasket 34 on the surface of the pressure plate 33 is compressed and deformed, pressing tightly against the surfaces of the pressure plate 33, the first pipe body 11, and the second pipe body 12. This effectively seals the gaps between the first pipe body 11, the second pipe body 12 and the lower sleeve 31 and the upper sleeve 32. The sealing of the connection between the first pipe body 11 and the second pipe body 12 by the lower sleeve 31 and the upper sleeve 32 effectively protects the connection and reduces the risk of damage. To control the aging rate of the bolts connecting the first pipe body 11 and the second pipe body 12, as well as the seals between the first pipe body 11 and the second pipe body 12, after completing the above steps, retighten the locking sleeve 228. The lower sleeve 31 and the upper sleeve 32 can reinforce the connection between the first pipe body 11 and the second pipe body 12. Combined with the support of the support mechanism 2, they can reduce the shear force at the connection between the first pipe body 11 and the second pipe body 12. If a leak occurs in the pipeline at the connection between the first pipe body 11 and the second pipe body 12, the leaked medium can be sealed between the lower sleeve 31, the upper sleeve 32, the pressure plate 33, and the sealing gasket 34. To prevent direct leakage to the ground, the fluid medium first accumulates in the lower jacket 31 and flows into the level indicator pipe 36. As the liquid level rises, the medium enters the connecting pipe 41 through the level indicator pipe 36 and then into the buoyancy chamber 42. Buoyancy causes the buoyancy chamber 42 to rise along the guide rod 43. As the floating block 44 continues to rise, when the top pressing block of the floating block 44 is fully inserted into the through hole 46, the top surface of the floating block 44 abuts against the partition plate 45, and the partition plate 45 seals the through hole 46. This, combined with the sealing ring 48, prevents the medium from entering above the partition plate 45. Simultaneously, the pressing block at the top of the floating block 44 triggers the trigger switch 47, which transmits a signal to the controller 392.The controller 392 controls the wireless communication module 393 to send an alarm signal to the terminal (such as a monitoring center) to promptly remind maintenance personnel to handle the maintenance. As the liquid level inside the lower jacket 31 rises, the liquid level indicator tube 36, due to its connection with the spaces inside the lower jacket 31 and upper jacket 32, will also rise synchronously. The first protective cover 37 protects the liquid level indicator tube 36, while its side observation slot allows maintenance personnel to quickly assess the situation in the lower jacket 31 and upper jacket 32 ​​upon arrival. The liquid level of the medium inside the internal space is determined by placing the container holding the medium directly below the drain bolt hole 381 and unscrewing the sealing bolt 382. This releases the seal on the drain bolt hole 381, allowing the medium inside the lower jacket 31 and upper jacket 32 ​​to drain through the drain bolt hole 381. When the liquid level of the medium inside the lower jacket 31 and upper jacket 32 ​​is lower than the bottom of the first pipe body 11 and the second pipe body 12, the upper jacket 32 ​​can be opened to perform maintenance on the connection between the first pipe body 11 and the second pipe body 12.

[0045] The circuits, electronic components, and modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this application does not involve any improvement to the software and methods.

[0046] It should be noted that, in this document, 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.

[0047] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only for the purpose of helping to understand the method and core ideas of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of this utility model, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without modification, should all be considered within the protection scope of this utility model.

Claims

1. A pipe protection component, characterized in that: The system includes a first pipe body (11), a second pipe body (12), and a multi-functional protection mechanism (3). The multi-functional protection mechanism (3) includes a lower jacket (31) and an upper jacket (32). The top of the lower jacket (31) and the bottom of the upper jacket (32) are provided with pressure plates (33). The top of the pressure plate (33) of the lower jacket (31) and the bottom of the pressure plate (33) of the upper jacket (32) are provided with sealing gaskets (34). The pressure plates (33) of the lower jacket (31) and the pressure plates (33) of the upper jacket (32) are fixed together by locking bolts (35). A liquid level indicator tube (36) is connected to the side of the lower jacket (31). The outer side of the lower jacket (31) is provided with a first protective cover (37), the bottom of the lower jacket (31) is provided with a drain bolt hole (381), the inner side of the drain bolt hole (381) is threaded with a sealing bolt (382), the side of the lower jacket (31) is provided with an alarm device (39), the side of the liquid level indicator tube (36) is connected with an alarm triggering mechanism (4), the bottom of the multi-functional protection mechanism (3) is connected to the support mechanism (2), the support mechanism (2) includes a base (21), the top and bottom of the base (21) are connected with a bolt hole and fixed to the ground by bolts, and the top of the base (21) is provided with a lifting adjustment mechanism (22).

2. The pipeline protection assembly according to claim 1, characterized in that: The first pipe body (11) and the second pipe body (12) are fixed together by bolted flanges, and the lower sleeve (31) and the upper sleeve (32) are sleeved on the outside of the connection between the lower sleeve (31) and the upper sleeve (32).

3. A pipe protection assembly according to claim 1, characterized in that: The first protective cover (37) has an observation groove through one side. The liquid level indicator tube (36) consists of two parts: a metal tube at the bottom connected to the lower jacket (31) and a transparent glass tube at the top of the metal tube.

4. A pipe protection assembly according to claim 1, characterized in that: The lifting adjustment mechanism (22) includes a telescopic cavity (221) fixed to the top of the base (21). A telescopic rod (222) is inserted and installed inside the telescopic cavity (221). A transmission screw (223) is rotatably installed inside the telescopic cavity (221). A first bevel gear (224) is sleeved on the outside of the transmission screw (223). A rotating shaft (225) is rotatably installed through the side wall of the telescopic cavity (221). One end of the rotating shaft (225) is connected to a second bevel gear (226). The second bevel gear (226) meshes with the first bevel gear (224). The other end of the rotating shaft (225) is provided with a hexagonal connector (227). A bracket (23) is provided on the top of the telescopic cavity (221). The top of the bracket (23) is fixed to the lower clamp (31).

5. A pipe protection assembly according to claim 4, characterized in that: The rotating shaft (225) has a threaded portion on the outer side of the telescopic cavity (221) and is threadedly connected to the locking sleeve (228).

6. A pipe protection assembly according to claim 1, characterized in that: The alarm device (39) includes a second protective cover (391) fixed to the side of the lower sleeve (31), and a controller (392) and a wireless communication module (393) are provided on the inner side of the second protective cover (391).

7. A pipe protection assembly according to claim 6, characterized in that: The alarm triggering mechanism (4) includes a connecting pipe (41) connected to the liquid level indicator pipe (36). A buoyancy chamber (42) is provided at the top of the connecting pipe (41). A guide rod (43) is provided inside the buoyancy chamber (42). A floating block (44) is slidably installed on the outside of the guide rod (43). A partition (45) is provided inside the buoyancy chamber (42). A through hole (46) is provided between the top and bottom of the partition (45). A trigger switch (47) is provided on the inner side of the buoyancy chamber (42) above the partition (45). A sealing ring (48) is provided on the inner side of the through hole (46). The trigger switch (47) is electrically connected to the controller (392).

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