Ice viewing online monitoring device suitable for extremely cold environments

Abstract

The present invention discloses an online ice observation monitoring device suitable for an extremely cold environment, and belongs to the field of cable monitoring technology. It includes a power grid tower fixed on the ground, and there are several power grid towers. The power grid is set up on several power grid towers, and also includes a mounting frame, a fixed pulley, a drive motor, a drive shaft, a steel cable and a monitoring component. The mounting frame is fixedly arranged on two adjacent power grid towers, and the drive shaft is rotatably arranged on the side of the mounting frame facing the ground, and the fixed pulley is fixedly arranged on the side of the drive shaft away from the mounting frame. The present invention can observe the icing condition of the cable surface between adjacent towers, thereby eliminating the need for manual on-site ice observation operations, eliminating the potential safety hazards that may arise during manual ice observation, and can quickly and real-time monitor and inspect long-distance power supply cables, greatly improving the inspection efficiency of the power grid.

Description

Technical Field

[0001] The invention relates to an ice observation online monitoring device suitable for an extremely cold environment, and belongs to the technical field of cable monitoring. Background Art

[0002] Every year, power line disconnection accidents due to icing occur frequently. Currently, the power industry installs fixed artificial ice observers at key icing monitoring points to measure the icing situation.

[0003] During the period of cable icing, the weather is bad and ordinary artificial ice observation equipment cannot be moved. Therefore, ordinary ice observation equipment can only observe the icing of a small part of the line. For the observation of icing conditions of lines in other locations, manual ice observation is required, and manual ice observation will have certain safety hazards. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide an online ice observation monitoring device suitable for extremely cold environments. It solves the problem in the prior art that ordinary ice observation equipment can only observe the ice coverage of a small part of the line, while manual ice observation is required to observe the ice coverage of the lines at other locations, and manual ice observation will have certain safety hazards.

[0005] The technical problem to be solved by the present invention is achieved by adopting the following technical scheme: an online ice observation monitoring device suitable for extremely cold environments, comprising a power grid tower fixed on the ground, a plurality of power grid towers being provided, a power grid being erected on the plurality of power grid towers, and also comprising a mounting frame, a fixed pulley, a drive motor, a drive shaft, a steel cable and a monitoring component, wherein the mounting frame is fixedly arranged on two adjacent power grid towers, the drive shaft is rotatably arranged on a side of the mounting frame facing the ground, the fixed pulley is fixedly arranged on a side of the drive shaft away from the mounting frame, the drive motor is fixedly arranged on a side of the mounting frame away from the drive shaft, the drive shaft axially penetrates the mounting frame and is power-connected to the drive motor, the steel cable is wound between the fixed pulleys on the two adjacent power grid towers, the monitoring component is fixedly arranged on the steel cable, and the monitoring component is located between the two adjacent power grid towers.

[0006] By adopting the above technical solution, after the drive motor is started, the fixed pulley is driven to rotate through the drive shaft, thereby driving the steel cable to move. Since the monitoring component is fixed on the steel cable, the monitoring component can follow the movement of the steel cable at this time, thereby achieving the purpose of adjusting the monitoring component. During the movement, the monitoring component can observe the icing conditions on the surface of the cable between adjacent towers, thereby eliminating the need for manual on-site ice observation operations, eliminating the potential safety hazards that may arise during manual ice observation, and enabling rapid and real-time monitoring and inspection of long-distance power supply cables, greatly improving the inspection efficiency of the power grid.

[0007] The present invention is further configured as follows: the monitoring component includes a camera, a protective shell, a heating module, a steel cable fixing sleeve and an electric heating tube, the steel cable fixing sleeve is arranged on the steel cable and fixedly connected to the steel cable, the protective shell is hinged on the steel cable fixing sleeve, the camera is fixedly connected to the protective shell, the protective shell is arranged on the outside of the camera, the camera is provided with a monitoring end, the side of the protective shell facing the monitoring end of the camera extends to the outside of the camera to form an insulation space, the heating module is arranged on the side of the protective shell facing the steel cable fixing sleeve, the heating module is fixedly connected to the steel cable fixing sleeve, the side of the heating module facing the protective shell is abutted against the protective shell, and the electric heating tube is fixed on the side of the heating module facing the protective shell.

[0008] The present invention is further configured as follows: a collecting chamber is provided in the heating module, the inner wall of the collecting chamber is wrapped with a heat-insulating layer, the side of the heating module facing the camera monitoring end is provided with an inclined surface, a water inlet is provided on the inclined surface, and the water inlet is connected to the collecting chamber.

[0009] By adopting the above technical solution, the camera can observe the icing situation of the power grid in real time during use, and the electric heating tube can heat up to generate temperature. Since the electric heating tube is in contact with the protective shell, the temperature of the electric heating tube can be directly transmitted to the protective shell, so that the temperature of the protective shell increases in a low-temperature environment. Since the protective shell is located on one side of the camera monitoring end to form a heat preservation space, the cold air enters the heat preservation space and is heated by the temperature of the protective shell, so that the temperature at the monitoring end of the camera is always higher than the external environment temperature, which is conducive to ensuring that the camera can work for a long time in an extremely cold and low-temperature environment, and improves the working stability of the camera. At the same time, the cold air in the heat-insulating space is heated and becomes hot air, and moves upward, and finally the hot air contacts the surface of the low-temperature heating module, and the water vapor in the hot air contacts the surface of the low-temperature heating module to form water droplets, which slide along the inclined surface of the heating module and enter the collecting chamber through the opening of the water inlet for storage. Since a heat-insulating layer is arranged inside the collecting chamber, the heat of the electric heating tube always maintains the temperature in the collecting chamber above the freezing point, thereby preventing the water in the collecting chamber from freezing, and since the heat cannot be transferred to the heating module due to the action of the heat-insulating layer, the heating module is still close to the external ambient temperature, thereby avoiding the heat of the electric heating tube from being wasted.

[0010] The present invention is further configured as follows: assembly blocks are provided on opposite sides of the fixed pulley, the assembly blocks are located on the path of the steel cable around the set pulley, the assembly block is concavely arranged on a side surface facing the fixed pulley and forms a through gap with the outer curved surface of the fixed pulley, the steel cable passes through the through gap between the assembly block and the fixed pulley, a support rod is fixedly provided on the assembly block, one end of the support rod away from the assembly block is fixedly connected to the mounting frame, a de-icing sleeve is fixedly provided on a side surface facing the monitoring component, and the de-icing sleeve is arranged on the outside of the steel cable.

[0011] By adopting the above technical scheme, during the movement of the steel cable, the steel cable will slide relative to the de-icing sleeve. In extreme environments of extremely cold rain and snow, ice will also form on the surface of the steel cable. Therefore, during the movement of the steel cable, the de-icing sleeve can remove the ice layer condensed on the surface of the steel cable, thereby ensuring that the winding part of the steel cable and the fixed pulley can bend normally and avoiding the invasion of ice into the winding parts of the two, avoiding the accident of the steel cable and the fixed pulley being separated due to the invasion of ice, which is beneficial to ensure the normal movement of the monitoring component.

[0012] The present invention is further configured as follows: a gap is provided between the end of the inner side surface of the de-icing sleeve away from the assembly block and the steel cable to form an elastic cavity, an ice-scraping sleeve is provided in the elastic cavity, the ice-scraping sleeve is sleeved on the steel cable, the end of the ice-scraping sleeve away from the assembly block extends to the side of the de-icing sleeve away from the assembly block, and a spring sleeved on the steel cable is provided at the end of the elastic cavity facing the assembly block, the two ends of the spring are respectively fixedly connected to the inner wall of the elastic cavity and the end face of the ice-scraping sleeve, and the spring applies axial elastic force to the ice-scraping sleeve.

[0013] By adopting the above technical solution, when the steel cable moves, the ice layer condensed on the surface of the steel cable first abuts against the ice-shoveling sleeve, and then the ice-shoveling sleeve is slowly pushed and pressed toward the de-icing sleeve. During the pressing process, the ice layer can be shoveled away, which can avoid the ice layer from quickly coming into direct hard contact with the de-icing sleeve. The spring is compressed by the ice-shoveling sleeve to achieve buffering of the impact on the ice layer, which is beneficial to increasing the service life of the de-icing sleeve.

[0014] The present invention is further configured as follows: a sliding cavity is provided in the de-icing sleeve, a sliding block is provided in the sliding cavity for sliding along the axial direction of the de-icing sleeve, the sliding block is sealed against the inner wall of the sliding cavity, a connecting plate is fixedly provided on the side of the de-icing sleeve facing the assembly block, an end of the connecting plate away from the de-icing sleeve extends into the sliding cavity and is fixedly connected to the sliding block, a plurality of liquid outlet channels are provided on the end surface of the de-icing sleeve away from the assembly block, and one end of the liquid outlet channel is connected to a side of the sliding cavity away from the elastic cavity.

[0015] The present invention is further configured as follows: a liquid storage cavity is provided in the assembly block, an insulation structure is provided inside the liquid storage cavity, a pressure cavity is connected to a side of the liquid storage cavity away from the ground, a winding tube column is rotatably provided on an end wall of the pressure cavity away from the liquid storage cavity, the axial direction of the winding tube column extends in a vertical direction, one end of the winding tube column away from the liquid storage cavity extends to the outside of the assembly block, a torsion spring is fixedly provided at the connection between the assembly block and the winding tube column, a thermal insulation hose is wound around a portion of the winding tube column located outside the assembly block, one end of the thermal insulation hose is fixedly connected to the winding tube column, and the other end of the thermal insulation hose is fixedly connected to the heating module.

[0016] The present invention is further configured as follows: a flexible sealing sheet is provided on an end wall of one side of the liquid storage chamber where the pressure chamber is opened, the flexible sealing sheet closes the opening of the pressure chamber, a circular ring is fixedly provided on the side of the flexible sealing sheet away from the liquid storage chamber, a circular ring is fixedly provided around the end face of the pipe column located in the pressure chamber, the rotating ring abuts against the end of the fixed ring, a plurality of grooves are provided on the end face of the fixed ring facing the rotating ring, a plurality of spherical protrusions are fixedly provided on the end face of the rotating ring facing the fixed ring, and the plurality of spherical protrusions correspond one-to-one with the plurality of groove openings to form a clamping structure.

[0017] The present invention is further configured as follows: the connecting end of the insulation hose and the heating module passes through the heating module and extends into the collecting chamber and is fixedly installed with a water pump; the connecting end of the insulation hose and the winding pipe column extends to the axis of the winding pipe column and extends axially along the axis to the liquid storage chamber; one end of the insulation hose extending into the liquid storage chamber passes through the flexible sealing sheet and is sealed at the connection with the flexible sealing sheet; a liquid guide channel is provided on the inner wall of the liquid storage chamber; an intermediate channel is provided in the de-icing sleeve; one end of the intermediate channel is connected to the sliding chamber; the other end of the intermediate channel is connected to the liquid guide channel; one-way valves are installed in both the liquid outlet channel and the intermediate channel; the one-way valve on the intermediate channel only allows water to flow into the sliding chamber; and the one-way valve in the liquid outlet channel only allows water to flow into the liquid outlet channel.

[0018] By adopting the above technical scheme, the water pump located in the collection chamber draws out the hot water collected in the collection chamber and introduces it into the liquid storage chamber for storage through the thermal insulation hose. Since both the liquid storage chamber and the collection chamber are insulated, the heat loss when the hot water enters the liquid storage chamber is low. At the same time, an appropriate amount of hot water is stored in the liquid storage chamber. The hot water in the liquid storage chamber can flow into the middle channel through the liquid guide channel and finally enter the sliding chamber. When the ice scraping sleeve abuts against the ice layer, the ice scraping sleeve moves toward the de-icing sleeve. At this time, the ice scraping sleeve drives the sliding block to move in the sliding chamber through the connecting plate. At this time, the pressure in the sliding chamber increases, causing the hot water in the sliding chamber to flow into the liquid outlet channel through the one-way valve in the liquid outlet channel, and then sprayed onto the ice layer on the surface of the steel cable through the opening of the liquid outlet channel. The hot water can quickly melt the ice layer on the steel cable, reduce the thickness of the ice layer, and reduce the difficulty of the ice scraping sleeve to remove the ice layer. When the heating module follows the movement of the steel cable to move in the direction away from the assembly block, the thermal insulation hose is gradually released from the winding column. When the heating module moves along the cable and moves toward the assembly block, the cable is reset and rotated under the action of the torsion spring. During the rotation of the cable, the heating module is rewound around the surface of the cable and the rotating ring is driven to rotate by the cable. When the cable is rotated, the rotating ring is driven to rotate by the cable. As the rotating ring is provided with a spherical protrusion, when the spherical protrusion is misaligned with the groove on the fixing ring and the engagement state is released, the fixing ring is pressed toward the liquid storage cavity by the spherical protrusion, thereby pressing the flexible sealing sheet toward the liquid storage cavity, thereby reducing the space in the liquid storage cavity and increasing the pressure. At this time, the water in the liquid storage cavity can be pressed into the liquid guide channel, and then sprayed out from the opening of the liquid outlet channel through the intermediate channel and the sliding cavity in turn. In this way, the hot water can continuously melt the ice layer condensed on the cable during the entire process of the cable passing through the deicing sleeve, thereby further reducing the difficulty of the ice shoveling sleeve to remove the ice layer.

[0019] The beneficial effects of the present invention are as follows: after the drive motor is started, the fixed pulley is driven to rotate through the drive shaft, thereby driving the steel cable to move. Since the monitoring component is fixed on the steel cable, the monitoring component can follow the movement of the steel cable at this time, thereby achieving the purpose of adjusting the monitoring component. During the movement, the monitoring component can observe the icing conditions on the surface of the cable between adjacent towers, thereby eliminating the need for manual on-site ice observation operations, eliminating the potential safety hazards that may arise during manual ice observation, and being able to perform rapid and real-time monitoring and inspection of long-distance power supply cables, greatly improving the inspection efficiency of the power grid. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention;

[0021] Figure 2 It is a structural explosion diagram of the monitoring component in the present invention;

[0022] Figure 3It is a partial structural cross-sectional view of the present invention;

[0023] Figure 4 for Figure 3 A magnified view of the structure at center A;

[0024] Figure 5 It is an enlarged cross-sectional view of the de-icing sleeve structure in the present invention;

[0025] Figure 6 It is a partial structural cross-sectional view of the de-icing boot in the present invention.

[0026] In the figure: 10, mounting frame; 11, fixed pulley; 12, driving motor; 13, driving shaft; 14, steel cable; 20, camera; 21, protective shell; 22, heating module; 23, water inlet; 24, insulation hose; 25, steel cable fixing sleeve; 26, electric heating tube; 27, collecting chamber; 28, insulation space; 30, assembly block; 31, support rod; 32, winding column; 33, liquid storage chamber; 34, flexible sealing sheet; 35, pressure chamber; 36, fixing ring; 37, rotating ring; 38, liquid guide channel; 40, de-icing sleeve; 41, sliding chamber; 42, elastic chamber; 43, ice-shoveling sleeve; 44, spring; 45, liquid outlet channel; 46, sliding block; 47, middle channel; 48, connecting plate. DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features, objectives and effects of the present invention easier to understand, the following is a brief introduction Figure 1-6 The present invention is further described.

[0028] like Figure 1-2As shown, an online ice observation monitoring device suitable for an extremely cold environment comprises a power grid tower fixed on the ground, wherein a plurality of power grid towers are provided, and a power grid is erected on the plurality of power grid towers, and further comprises a mounting frame 10, a fixed pulley 11, a driving motor 12, a driving shaft 13, a steel cable 14 and a monitoring component, wherein the mounting frame 10 is fixedly provided on two adjacent power grid towers, the driving shaft 13 is rotatably provided on a side of the mounting frame 10 facing the ground, the fixed pulley 11 is fixedly provided on a side of the driving shaft 13 away from the mounting frame 10, the driving motor 12 is fixedly provided on a side of the mounting frame 10 away from the driving shaft 13, the driving shaft 13 axially penetrates the mounting frame 10 and is power-connected to the driving motor 12, the steel cable 14 is wound between the fixed pulleys 11 on the two adjacent power grid towers, the monitoring component is fixedly provided on the steel cable 14, and the monitoring component is located between the two adjacent power grid towers. The monitoring component includes a camera 20, a protective shell 21, a heating module 22, a steel cable fixing sleeve 25 and an electric heating tube 26. The steel cable fixing sleeve 25 is sleeved on the steel cable 14 and fixedly connected to the steel cable 14. The protective shell 21 is hinged on the steel cable fixing sleeve 25. The camera 20 is fixedly connected to the protective shell 21. The protective shell 21 is sleeved on the outside of the camera 20. The camera 20 is provided with a monitoring end. The side of the protective shell 21 facing the monitoring end of the camera 20 extends to the outside of the camera 20 to form a heat preservation space 28. The heating module 22 is arranged on the side of the protective shell 21 facing the steel cable fixing sleeve 25. The heating module 22 is fixedly connected to the steel cable fixing sleeve 25. The side of the heating module 22 facing the protective shell 21 abuts against the protective shell 21. The electric heating tube 26 is fixed on the side of the heating module 22 facing the protective shell 21. A collecting chamber 27 is provided in the heating module 22, and the inner wall of the collecting chamber 27 is wrapped with an insulation layer. The collecting chamber 27 is filled with hot water. The side of the heating module 22 facing the monitoring end of the camera 20 is provided with an inclined surface, and a water inlet 23 is provided on the inclined surface. The water inlet 23 is connected to the collecting chamber 27. A chemical battery is built into the heating module 22, and the chemical battery and the electric heating tube 26 are powered, so that the inspection device can maintain the heating state of the electric heating tube 26 in extremely cold rainy and snowy weather.

[0029] During the movement of the steel cable 14, the steel cable 14 will slide relative to the de-icing sleeve 40. In extreme environments of extremely cold rain and snow, ice will also form on the surface of the steel cable 14. Therefore, during the movement of the steel cable 14, the de-icing sleeve 40 can remove the ice layer condensed on the surface of the steel cable 14, thereby ensuring that the winding part of the steel cable 14 and the fixed pulley 11 can bend normally and avoiding the invasion of ice into the winding part of the two, avoiding the accident of the steel cable 14 and the fixed pulley 11 being separated due to the invasion of ice, which is beneficial to ensure the normal movement of the monitoring component.

[0030] During use in an extremely cold, rainy, and snowy environment, the camera 20 can conduct real-time observation of the icing condition of the power grid, and the electric heating tube 26 can generate heat. Since the electric heating tube 26 is in contact with the protective shell 21, the temperature of the electric heating tube 26 can be directly transmitted to the protective shell 21, thereby increasing the temperature of the protective shell 21 in a low-temperature environment. Since the protective shell 21 is located on one side of the monitoring end of the camera 20 to form a heat preservation space 28, cold air enters the heat preservation space 28 and is heated by the temperature of the protective shell 21, thereby causing the temperature at the monitoring end of the camera 20 to be always higher than the external environment temperature, which is beneficial to ensure that the camera 20 can work for a long time in an extremely cold and low-temperature environment, thereby improving the working stability of the camera 20. At the same time, the cold air in the heat-insulating space 28 is heated to become hot air and moves upward, and finally the hot air contacts the surface of the low-temperature heating module 22, and the water vapor in the hot air contacts the surface of the low-temperature heating module 22 to form water droplets, which slide along the inclined surface of the heating module 22 and enter the collecting chamber 27 through the opening of the water inlet 23 for storage. Since the collecting chamber 27 is provided with a heat-insulating layer, the heat of the electric heating tube 26 always maintains the temperature in the collecting chamber 27 above the freezing point, thereby preventing the water in the collecting chamber 27 from freezing, and since the heat cannot be transferred to the heating module 22 due to the action of the heat-insulating layer, the heating module 22 is still close to the external environment temperature, thereby avoiding the heat of the electric heating tube 26 from being wasted.

[0031] like Figure 5-6 As shown, assembly blocks 30 are provided on opposite sides of the fixed pulley 11, and the assembly blocks 30 are located on the path of the steel cable 14 around the set pulley 11. The assembly block 30 is concavely arranged on one side facing the fixed pulley 11 and forms a through gap with the outer curved surface of the fixed pulley 11. The steel cable 14 passes through the through gap between the assembly block 30 and the fixed pulley 11. A support rod 31 is fixedly arranged on the assembly block 30, and one end of the support rod 31 away from the assembly block 30 is fixedly connected to the mounting frame 10, and a de-icing cover 40 is fixedly arranged on the side facing the monitoring component, and the de-icing cover 40 is sleeved on the outside of the steel cable 14. There is a gap between the end of the inner side surface of the de-icing sleeve 40 away from the assembly block 30 and the steel cable 14 to form an elastic cavity 42, in which an ice-shoveling sleeve 43 is arranged, and the ice-shoveling sleeve 43 is sleeved on the steel cable 14, and the end of the ice-shoveling sleeve 43 away from the assembly block 30 extends to the side of the de-icing sleeve 40 away from the assembly block 30, and the end of the elastic cavity 42 facing the assembly block 30 is provided with a spring 44 sleeved on the steel cable 14, and the two ends of the spring 44 are respectively fixedly connected to the inner wall of the elastic cavity 42 and the end face of the ice-shoveling sleeve 43, and the spring 44 applies axial elastic force to the ice-shoveling sleeve 43.

[0032] like Figure 3-6As shown, a sliding cavity 41 is provided in the de-icing sleeve 40, and hot water can be optionally filled in the sliding cavity 41. A sliding block 46 is provided in the sliding cavity 41 to slide along the axial direction of the de-icing sleeve 40, and the sliding block 46 is sealed against the inner wall of the sliding cavity 41. A connecting plate 48 is fixedly provided on the side of the de-icing sleeve 43 facing the assembly block 30, and one end of the connecting plate 48 away from the de-icing sleeve 43 extends into the sliding cavity 41 and is fixedly connected to the sliding block 46. A plurality of liquid outlet channels 45 are provided on the end surface of the de-icing sleeve 40 away from the assembly block 30, and one end of the liquid outlet channel 45 is connected to the side of the sliding cavity 41 away from the elastic cavity 42. A liquid storage chamber 33 is provided in the assembly block 30, and the liquid storage chamber 33 is provided with a heat preservation structure. The liquid storage chamber 33 is filled with hot water. A pressure chamber 35 is provided on the side of the liquid storage chamber 33 away from the ground. A winding column 32 is provided on the end wall of the pressure chamber 35 away from the liquid storage chamber 33. The axial direction of the winding column 32 extends in the vertical direction. One end of the winding column 32 away from the liquid storage chamber 33 extends to the outside of the assembly block 30. A torsion spring is fixedly provided at the connection between the assembly block 30 and the winding column 32. A heat preservation hose 24 is provided around the part of the winding column 32 located outside the assembly block 30. One end of the heat preservation hose 24 is fixedly connected to the winding column 32, and the other end of the heat preservation hose 24 is fixedly connected to the heating module 22. When the steel cable 14 breaks abnormally, the winding column 32 can pull the monitoring component through the heat preservation hose 24 to prevent the monitoring component from falling directly to the ground, which is conducive to protecting the safety of the monitoring component.

[0033] like Figure 3-6As shown, the connection end between the heat preservation hose 24 and the heating module 22 passes through the heating module 22 and extends into the collecting chamber 27 and is fixedly installed with a water pump. The connecting end of the insulation hose 24 and the winding pipe column 32 extends to the axis of the winding pipe column 32 and extends axially along the axis to the liquid storage chamber 33. One end of the insulation hose 24 extending into the liquid storage chamber 33 passes through the flexible sealing sheet 34 and is sealed at the connection with the flexible sealing sheet 34. A liquid guide channel 38 is provided on the inner wall of the liquid storage chamber 33, and an intermediate channel 47 is provided in the de-icing sleeve 40. One end of the intermediate channel 47 is connected to the sliding chamber 41, and the other end of the intermediate channel 47 is connected to the liquid guide channel 38. One-way valves are installed in the liquid outlet channel 45 and the intermediate channel 47. The one-way valve on the intermediate channel 47 only allows water to flow into the sliding chamber 41, and the one-way valve in the liquid outlet channel 45 only allows water to flow into the liquid outlet channel 45. The one-way valve can also be replaced by a one-way pressure valve. When the one-way pressure valve is used, it can ensure that the water pressure sprayed from the liquid outlet channel 45 meets the requirements, so that hot water can be splashed on a large area of ​​the steel cable 14. In an extreme working environment with extremely low external temperature, the inner walls of the liquid guide channel 38, the sliding cavity 41, the middle channel 47 and the liquid outlet channel 45 are all provided with a heat-insulating layer, and the heat-insulating layer and the heat-insulating structure are made of heat-insulating composite materials, such as fiber materials, nanocomposites, polyester-ammonia foaming materials, etc., to prevent the temperature of hot water from dropping suddenly and freezing when it flows through the liquid guide channel 38, the middle channel 47 and the liquid outlet channel 45. The hot water can be a chemical liquid with a freezing point below zero degrees, including but not limited to a heatable liquid with antifreeze added, salt water, etc. The heat in the hot water means that the liquid temperature is greater than zero degrees.

[0034] like Figure 4 As shown, a flexible sealing sheet 34 is provided on the end wall of one side of the liquid storage chamber 33 where the pressure chamber 35 is opened. The flexible sealing sheet 34 closes the opening of the pressure chamber 35. A circular ring 36 is fixedly provided on the side of the flexible sealing sheet 34 away from the liquid storage chamber 33. A circular ring 37 is fixedly provided around the end surface of the tube column 32 located in the pressure chamber 35. The rotating ring 37 abuts against the end of the fixing ring 36. The fixing ring 36 is provided with a plurality of grooves on the end surface of the rotating ring 37. The rotating ring 37 is fixedly provided with a plurality of spherical protrusions on the end surface of the fixing ring 36. The plurality of spherical protrusions correspond one-to-one with the plurality of groove openings to form a snap-fit ​​structure.

[0035] During the movement of the steel cable 14, the steel cable 14 will slide relative to the de-icing sleeve 40. In extreme environments of extremely cold rain and snow, ice will also appear on the surface of the steel cable 14. Therefore, during the movement of the steel cable 14, the de-icing sleeve 40 can remove the ice layer condensed on the surface of the steel cable 14, thereby ensuring that the winding part of the steel cable 14 and the fixed pulley 11 can be bent normally and avoid ice intrusion into the winding part of the two, and avoid the accident of the steel cable 14 and the fixed pulley 11 being separated due to ice intrusion, which is conducive to ensuring the normal movement of the monitoring component. When the steel cable 14 moves, the ice layer condensed on the surface of the steel cable 14 first contacts the ice-shoveling sleeve 43, and then the ice-shoveling sleeve 43 is slowly pushed and pressed toward the de-icing sleeve 40. During the pressing process, the ice layer can be removed, which can avoid the ice layer from quickly coming into direct hard contact with the de-icing sleeve 40. The spring 44 is compressed by the ice-shoveling sleeve 43 to achieve buffering of the impact of the ice layer, which is conducive to improving the service life of the de-icing sleeve 40.

[0036] The water pump located in the collection chamber 27 extracts the hot water collected in the collection chamber 27 and introduces it into the liquid storage chamber 33 through the heat-insulating hose 24 for storage. Since both the liquid storage chamber 33 and the collection chamber 27 are heat-insulated, the heat loss when the hot water enters the liquid storage chamber 33 is low. At the same time, a proper amount of hot water is stored in the liquid storage chamber 33. The hot water in the liquid storage chamber 33 can flow into the intermediate channel 47 through the liquid guide channel 38 and finally enter the sliding chamber 41. When the ice scraper sleeve 43 abuts against the ice layer, the ice scraper sleeve 4 3 moves toward the de-icing sleeve 40. At this time, the ice-shoveling sleeve 43 drives the sliding block 46 to move in the sliding chamber 41 through the connecting plate 48. At this time, the pressure in the sliding chamber 41 increases, so that the hot water in the sliding chamber 41 flows into the liquid outlet channel 45 through the one-way valve in the liquid outlet channel 45, and then sprays out to the ice layer on the surface of the steel cable 14 through the opening of the liquid outlet channel 45. The hot water can quickly melt the ice layer on the steel cable 14, reduce the thickness of the ice layer, and reduce the difficulty of the ice-shoveling sleeve 43 to remove the ice layer.

[0037] When the heating module 22 follows the steel cable 14 to move in a direction away from the assembly block 30, the heat preservation hose 24 is gradually unwound from the winding column 32. During the unwinding process of the heat preservation hose 24, the winding column 32 rotates and compresses the torsion spring. When the heating module 22 follows the steel cable 14 to move in a direction close to the assembly block 30, the winding column 32 is reset and rotated under the action of the torsion spring. During the rotation process of the winding column 32, the heat preservation hose 24 is rewound on the surface of the winding column 32. When the winding column 32 rotates, the winding column 32 drives the rotating ring 37 to rotate. Since the rotating ring 37 is provided with a spherical protrusion, when When the spherical protrusion and the groove on the fixing ring 36 are misaligned to release the clamping state, the fixing ring 36 is pressed by the spherical protrusion toward the liquid storage chamber 33, so that the fixing ring 36 presses the flexible sealing sheet 34 toward the liquid storage chamber 33, so that the space in the liquid storage chamber 33 becomes smaller and the pressure increases. At this time, the water in the liquid storage chamber 33 can be pressed into the liquid guide channel 38, and then sprayed out from the opening of the liquid outlet channel 45 through the intermediate channel 47 and the sliding cavity 41 in turn. In this way, the hot water can continuously melt the condensed ice layer on the steel cable 14 during the entire process of passing through the de-icing sleeve 40, thereby further reducing the difficulty of the ice shoveling sleeve 43 in shoveling the ice layer.

[0038] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. An ice observation online monitoring device suitable for an extremely cold environment comprises a power grid tower fixed on the ground, wherein a plurality of power grid towers are provided, and a power grid is set up on the plurality of power grid towers, and the device is characterized in that: It also includes a mounting frame (10), a fixed pulley (11), a drive motor (12), a drive shaft (13), a steel cable (14) and a monitoring component, wherein the mounting frame (10) is fixedly arranged on two adjacent power grid towers, the drive shaft (13) is rotatably arranged on a side of the mounting frame (10) facing the ground, the fixed pulley (11) is fixedly arranged on a side of the drive shaft (13) away from the mounting frame (10), the drive motor (12) is fixedly arranged on a side of the mounting frame (10) away from the drive shaft (13), the drive shaft (13) axially penetrates the mounting frame (10) and is power-connected to the drive motor (12), the steel cable (14) is wound between the fixed pulleys (11) on the two adjacent power grid towers, the monitoring component is fixedly arranged on the steel cable (14), and the monitoring component is located between the two adjacent power grid towers; The monitoring component comprises a camera (20), a protective housing (21), a heating module (22), a steel cable fixing sleeve (25) and an electric heating tube (26); the steel cable fixing sleeve (25) is sleeved on the steel cable (14) and fixedly connected to the steel cable (14); the protective housing (21) is hinged on the steel cable fixing sleeve (25); the camera (20) is fixedly connected to the protective housing (21); the protective housing (21) is sleeved on the outside of the camera (20); the camera (20) is provided with a monitoring end; the protective housing (21) The heating module (22) is arranged on a side of the protective housing (21) facing the steel cable fixing sleeve (25), the heating module (22) is fixedly connected to the steel cable fixing sleeve (25), the side of the heating module (22) facing the protective housing (21) is in contact with the protective housing (21), and the electric heating tube (26) is fixed on a side of the heating module (22) facing the protective housing (21).

2. The ice observation online monitoring device suitable for extremely cold environments according to claim 1 is characterized in that: A collecting chamber (27) is provided in the heating module (22), the inner wall of the collecting chamber (27) is wrapped with a heat-insulating layer, and a side of the heating module (22) facing the monitoring end of the camera (20) is provided with an inclined surface, a water inlet (23) is provided on the inclined surface, and the water inlet (23) is in communication with the collecting chamber (27).

3. The ice observation online monitoring device suitable for extremely cold environments according to claim 2 is characterized in that: Mounting blocks (30) are arranged on opposite sides of the fixed pulley (11). The mounting blocks (30) are located on a path of the steel cable (14) around the fixed pulley (11). The mounting block (30) is arranged inwardly on a side facing the fixed pulley (11) and forms a through-gap with the outer curved surface of the fixed pulley (11). The steel cable (14) passes through the through-gap between the mounting block (30) and the fixed pulley (11). A support rod (31) is fixedly arranged on the mounting block (30). One end of the support rod (31) away from the mounting block (30) is fixedly connected to the mounting frame (10). A deicing sleeve (40) is fixedly arranged on a side facing the monitoring component. The deicing sleeve (40) is sleeved on the outer side of the steel cable (14).

4. The ice observation online monitoring device suitable for extremely cold environments according to claim 3 is characterized in that: A gap is formed between the end of the inner side surface of the de-icing sleeve (40) away from the assembly block (30) and the steel cable (14), and an elastic cavity (42) is formed. An ice scraping sleeve (43) is arranged in the elastic cavity (42). The ice scraping sleeve (43) is sleeved on the steel cable (14). The end of the ice scraping sleeve (43) away from the assembly block (30) extends to the side of the de-icing sleeve (40) away from the assembly block (30). A spring (44) sleeved on the steel cable (14) is arranged at the end of the elastic cavity (42) facing the assembly block (30). The two ends of the spring (44) are respectively fixedly connected to the inner wall of the elastic cavity (42) and the end surface of the ice scraping sleeve (43). The spring (44) applies an axial elastic force to the ice scraping sleeve (43).

5. The ice observation online monitoring device suitable for extremely cold environments according to claim 4 is characterized in that: A sliding cavity (41) is provided in the deicing sleeve (40), a sliding block (46) is provided in the sliding cavity (41) to slide along the axial direction of the deicing sleeve (40), the sliding block (46) is sealed against the inner wall of the sliding cavity (41), a connecting plate (48) is fixedly provided on the side of the deicing sleeve (43) facing the assembly block (30), one end of the connecting plate (48) away from the deicing sleeve (43) extends into the sliding cavity (41) and is fixedly connected to the sliding block (46), a plurality of liquid outlet channels (45) are provided on the end surface of the deicing sleeve (40) away from the assembly block (30), one end of the liquid outlet channel (45) is communicated with the side of the sliding cavity (41) away from the elastic cavity (42).

6. The ice observation online monitoring device suitable for extremely cold environments according to claim 5 is characterized in that: A liquid storage chamber (33) is provided in the assembly block (30), and a heat-insulating structure is provided inside the liquid storage chamber (33). A pressure chamber (35) is provided in communication with the side of the liquid storage chamber (33) away from the ground. A winding tube column (32) is rotatably provided on the end wall of the pressure chamber (35) away from the liquid storage chamber (33). The axial direction of the winding tube column (32) extends in a vertical direction. One end of the winding tube column (32) away from the liquid storage chamber (33) extends to the outside of the assembly block (30). A torsion spring is fixedly provided at the connection between the assembly block (30) and the winding tube column (32). A heat-insulating hose (24) is wound around the portion of the winding tube column (32) located outside the assembly block (30). One end of the heat-insulating hose (24) is fixedly connected to the winding tube column (32), and the other end of the heat-insulating hose (24) is fixedly connected to the heating module (22).

7. The ice observation online monitoring device suitable for extremely cold environments according to claim 6 is characterized by: A flexible sealing sheet (34) is provided on an end wall of the liquid storage chamber (33) on one side of which the pressure chamber (35) is opened. The flexible sealing sheet (34) closes the opening of the pressure chamber (35). A circular ring (36) is fixedly provided on the side of the flexible sealing sheet (34) away from the liquid storage chamber (33). A circular ring (37) is fixedly provided around the end surface of the pipe column (32) located in the pressure chamber (35). The rotating ring (37) is in contact with the end of the fixing ring (36). The fixing ring (36) is provided with a plurality of grooves on the end surface facing the rotating ring (37). The rotating ring (37) is fixedly provided with a plurality of spherical protrusions on the end surface facing the fixing ring (36). The plurality of spherical protrusions correspond to the plurality of groove openings one by one to form a clamping structure.

8. The ice observation online monitoring device suitable for extremely cold environments according to claim 6 is characterized by: The connection end of the heat-insulating hose (24) and the heating module (22) passes through the heating module (22) and extends into the collecting chamber (27) and is fixedly mounted with a water pump. The connection end of the heat-insulating hose (24) and the winding column (32) extends to the axis of the winding column (32) and extends axially along the axis into the liquid storage chamber (33). One end of the heat-insulating hose (24) extending into the liquid storage chamber (33) passes through the flexible sealing sheet (34) and is sealed at the connection with the flexible sealing sheet (34). The liquid storage chamber (33) A liquid guide channel (38) is provided on the inner wall, an intermediate channel (47) is provided in the deicing sleeve (40), one end of the intermediate channel (47) is communicated with the sliding cavity (41), and the other end of the intermediate channel (47) is communicated with the liquid guide channel (38), and one-way valves are installed in both the liquid outlet channel (45) and the intermediate channel (47), the one-way valve on the intermediate channel (47) only allows water to flow into the sliding cavity (41), and the one-way valve in the liquid outlet channel (45) only allows water to flow into the liquid outlet channel (45).

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