An expandable control cabinet for outdoor heavy snow accumulation prevention

Abstract

The present invention relates to the technical field of electrical control cabinets, and specifically to an expandable control cabinet for preventing heavy snow accumulation outdoors; it comprises a cabinet body; the top of the cabinet body is slidably connected to a cabinet top; a first spring is fixedly connected between the cabinet top and the cabinet body; a first vent is provided on the side surface of the cabinet top; the top surface of the cabinet top is fixedly connected to a top cover, the cross-section of the top cover is a V-shaped structure design, and the two ends of the top cover are bent upwards; when snow accumulates on the top cover, it will be deformed by the gravity of the snow, so that the snow can slide down along the surface of the top cover to both sides, and at the same time, the accumulation of snow also makes the cabinet top fixed to the top cover slide downward along the surface of the cabinet body, and at the same time, the first vent provided on the cabinet top surface will be blocked by the side surface of the cabinet body, thereby preventing rain and snow from entering the cabinet body.

Description

Technical Field

[0001] The invention relates to the technical field of electrical control cabinets, in particular to an expandable control cabinet for preventing heavy snow accumulation outdoors. Background Art

[0002] As people's living standards improve, more and more electrical products are used. In order to ensure the normal use of electricity by residents, more and more electrical control cabinets are put into use. However, many electrical controls are installed on the roadside or in outdoor places. If there is bad weather such as rain and snow, it is easy to cause corrosion to the electrical control cabinet, affecting its normal use.

[0003] Some technologies for preventing snow accumulation in electrical control cabinets have also appeared in the prior art. For example, a Chinese patent with application number CN111148382A discloses an electrical control cabinet with rain and snow protection function, including an electrical cabinet, the top of the wire through hole passes through the bottom of the electrical cabinet, air inlets are arranged on the left and right sides of the bottom of the inner cavity of the electrical cabinet, a shell is arranged on the top of the electrical cabinet, buffer devices are arranged at the four corners of the top of the shell, the top of the buffer device is connected to the bottom of the support plate, the top of the support plate is fixedly connected to the bottom of the guide plate, a motor is arranged at the center of the bottom of the inner cavity of the shell, a rotating rod is arranged on the top of the motor through a coupling, and the top of the rotating rod passes through the shell, the support plate and the guide plate respectively, the guide plate is cleaned by the arranged motor and cleaning brush to prevent corrosion to the equipment after the snow melts, causing leakage, short circuit and other faults of the equipment, and the arrangement of the buffer device and the arc-shaped guide plate makes it difficult for water to accumulate and debris to accumulate on the top of the equipment, thereby preventing the equipment from being damaged due to excessive pressure on the top.

[0004] If there is heavy snow, too much snow will easily crush the electrical control cabinet. If there is heavy rain, too much water will easily corrode the electrical control cabinet. If a sealed electrical control cabinet is used, the electrical components in the electrical control cabinet will face the risk of overheating in the hot summer weather, affecting their normal use.

[0005] To this end, the present invention provides an expandable control cabinet for preventing heavy snow accumulation outdoors. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problems is: the expandable control cabinet for preventing heavy snow accumulation outdoors described in the present invention comprises a cabinet body; the top of the cabinet body is slidably connected to a cabinet top; a first spring is fixedly connected between the cabinet top and the cabinet body; a first vent is opened on the side surface of the cabinet top; the top surface of the cabinet top is fixedly connected to a top cover, the cross-section of the top cover is a V-shaped structure design, and the two ends of the top cover are bent upwards; during operation, when encountering rainy and snowy weather, the V-shaped top cover will divert rain and snow to its two sides, and because the two ends of the top cover are bent upwards, a small amount of rain and snow will accumulate at the bends, resulting in an increase in the weight of the top cover, so that the cabinet top fixedly connected thereto will slide downward along the surface of the cabinet body and compress the first spring, and at this time the first vent opened on the cabinet top surface will be blocked by the side surface of the cabinet body. , thereby blocking rain and snow from entering the cabinet, and then protecting the electrical components in the cabinet, so that the electrical components avoid short circuit or corrosion after contact with rain and snow. When rain and snow further accumulate on the top cover, the top cover, which is made of elastic material, will deform, causing the two sides of the top cover to bend, allowing the accumulated snow or rain to slide down along the surface of the top cover, preventing excessive accumulation of rain and snow and crushing the top cover and the cabinet. When the rain and snow weather ends, the accumulation of rain and snow on the top cover decreases, the weight of the top cover is reduced, the compressed first spring will recover, and drive the cabinet top to slide upward along the surface of the cabinet. Since the top of the cabinet is connected to the inside of the cabinet top, the upward movement of the cabinet top increases the volume of the cabinet, and at the same time, the cabinet top drives the first air hole opened on its surface to move upward, so that the first air hole is no longer blocked by the surface of the cabinet, which is beneficial to the air circulation in the cabinet and helps heat dissipation.

[0008] Preferably, the top surface of the cabinet is fixedly connected to the column; a first slide groove is opened inside the cabinet top at a position corresponding to the column; a control button is fixedly connected to the bottom of the first slide groove; the inside of the cabinet top is fixedly connected to the motor; the output shaft surface of the motor is fixedly connected to the first gear; the inside of the top cover is rotatably connected to the second gear at the first gear position, and the second gear is meshingly connected to the first gear; the shaft surface of the second gear is rotatably connected to a belt; the inside of the top cover is rotatably connected to evenly arranged rotating rods at the belt position; the surface of the rotating rod is fixedly connected to a roller; a number of protrusions are provided on the side surface of the roller; during operation, when encountering severe weather with heavy snow, the top cover will stick to more snow due to the melting and re-solidification of snow on its surface, and the snow on the top cover will continue to accumulate, causing the cabinet top to slide downward along the cabinet surface and compress the first spring, thereby making The column fixed on the top surface of the cabinet enters the first slide groove and squeezes the control button at the bottom of the first slide groove, thereby starting the motor. After the motor is started, it will drive the fixed first gear on its output shaft to rotate, and the first gear will drive the second gear meshing with it to rotate, and the rotating shaft of the second gear will drive the belt connected to it to move, and the belt will drive the rotating rod on it to rotate, and finally the rotating rod will drive the roller fixed on its surface to rotate, and the fixed protrusions on the surface of the roller will break up the sticky accumulated snow on the top cover, so that the accumulated snow can fall better along the surface of the top cover to prevent excessive snow from crushing the cabinet and the top cover. When the snow on the top cover is cleared, the weight of the top cover is reduced, the first spring is restored, the cabinet top will move upward along the surface of the cabinet, and the column on the top surface of the cabinet will no longer squeeze the control button. The motor will stop working one minute after the control button is no longer squeezed, so as to better clear the sticky snow on the surface of the top cover.

[0009] Preferably, a plurality of through holes are evenly provided on the side surface of the drum; the protrusion is rotatably connected to the side surface of the drum; a plug is fixedly connected to the surface of the protrusion at the position corresponding to the through hole, and a second spring is fixedly connected between the protrusion and the drum; the drum is filled with salt; when working, the drum will drive the protrusion fixed on its surface to rotate clockwise. When there is a lot of snow, the protrusion will be hindered by the snow when it rotates clockwise, and the protrusion will rotate slightly counterclockwise, and drive the plug fixed on its surface away from the through hole, thereby opening the through hole blocked by the plug, and stretching the second spring, so that the salt in the drum can leak out through the through hole, playing a role in melting the snow. When there is not much snow, the protrusion will not be squeezed by the snow, and the second spring recovers from the stretched state, driving the protrusion to rotate slightly clockwise, so that the plug on the protrusion is plugged into the through hole, thereby blocking the through hole and achieving the purpose of reasonable use of salt.

[0010] Preferably, a plurality of rotating rods are hingedly connected to the surface of the rotating rod in the drum; when the rotating rod rotates during operation, the rotating rod hinged on the surface thereof will be driven to rotate. After the rotating rod is driven by the rotating rod to reach the highest point, it will hit the salt pile under the action of its own gravity, thereby breaking up the salt particles in the salt pile into small granules, making it easier for the salt particles to leak out of the through-holes, and preventing the salt particles from forming lumps due to moisture, thereby blocking the through-holes.

[0011] Preferably, a first piston is fixedly connected to the lower surface of the top cover; a cylindrical cavity is fixedly connected to the cabinet top at a position corresponding to the first piston, and the cylindrical cavity is slidably connected to the first piston; a plurality of one-way valves are arranged on the side of the cylindrical cavity; an air guide channel is opened at the position of the cylindrical cavity on the cabinet top; a first air inlet valve is fixedly connected in the air guide channel; during operation, when wind blows through the top cover from the outside, the top cover will vibrate, and the vibration of the top cover will drive the first piston to reciprocate in the cylindrical cavity, and when the first piston presses against the top cover, the one-way valve on the side of the cylindrical cavity is in a closed state, and the air in the cylindrical cavity will not overflow, and the air in the cylindrical cavity will be pressed into the cabinet top through the first air inlet valve and the air guide channel, and when the first piston moves away from the cabinet top, it will inhale air to the outside through the one-way valve, and at this time, the first air inlet valve is in a closed state, and the whole process will continuously blow air into the whole formed by the cabinet top and the cabinet body, so as to achieve the effect of heat dissipation for the electrical components in the cabinet.

[0012] Preferably, a second slide groove is provided in the first piston; a second piston is slidably connected in the second slide groove; a second air inlet valve and an exhaust valve are symmetrically arranged on the side wall of the second slide groove; the exhaust valve is fixedly connected to an airbag; a whistle is fixedly connected to one end of the airbag away from the exhaust valve; during operation, when a bird stays or wind blows through the top cover, it will cause the top cover to vibrate, and the vibration of the top cover will drive the second piston to reciprocate in the second slide groove. When the second piston moves to the bottom of the groove away from the second slide groove, the second slide groove will inhale air from the outside through the second air inlet valve, and the exhaust valve is in a closed state at this time. When the second piston moves toward the bottom of the second slide groove, the gas in the second slide groove will be discharged into the airbag through the exhaust valve, and the second air inlet valve is in a closed state at this time. When the airbag is filled with gas, the gas will be discharged through the whistle fixed on the airbag, and the gas will make a sound through the whistle, so as to achieve the effect of driving away birds and warning passers-by. At the same time, a certain amount of gas can be stored in the airbag, and then continuously discharged through the whistle and make a sound, which can extend the sounding time of the whistle and improve the effect of driving away birds.

[0013] Preferably, a rubber bag is fixedly connected to the bottom surface of the first piston; the rubber bag is filled with dry powder for fire extinguishing; a pinhole groove is opened on the cabinet top at the position of the cylindrical cavity; a slider is slidably connected to the pinhole groove; a thin rope is fixedly connected between the slider and the bottom of the pinhole groove; a steel needle is fixedly connected to the surface of the slider on the side away from the bottom of the groove, and the steel needle is slidably connected to the pinhole groove; during operation, when a fire occurs in the cabinet, the high temperature will break the thin rope, and the gas between the slider and the pinhole groove will expand, pushing the slider and the steel needle fixed to the surface of the slider out of the pinhole groove, puncturing the rubber bag fixed to the bottom surface of the first piston, so that the dry powder for fire extinguishing in the rubber bag is spilled and falls into the top cover and the cabinet along the air guide channel, thereby playing a role in extinguishing the fire.

[0014] Preferably, a waterproof curtain is fixedly connected between the top cover, the cabinet body and the cabinet top; a second vent is provided at the bottom of the waterproof curtain; when in operation, the waterproof curtain covers the top cover, the cabinet top and the side surfaces of the cabinet body to prevent rainwater from entering the cabinet body through the first vent and damaging electrical components in the cabinet body; the second vent at the bottom of the waterproof curtain allows gas to enter the cabinet body during high temperatures in summer to help dissipate heat.

[0015] Preferably, a rotating plate is rotatably connected to the surface of the cabinet at the position of the second vent; a circle of first magnets is fixedly connected around the rotating plate; a circle of second magnets is fixedly connected around the second vent; during operation, when water accumulates in the rainy season, the accumulated water will drive the lightweight rotating plate to float, and the rotating plate will rotate. When the first magnet on the edge of the rotating plate is close enough to the second magnet fixedly connected to the second vent at the bottom of the waterproof curtain, they will attract and connect with each other, thereby closing the second vent, preventing accumulated water from flowing back into the cabinet through the second vent and causing damage to the electrical components in the cabinet.

[0016] Preferably, a waterproof rubber ring is fixedly connected around the second vent; during operation, when the rotating plate seals the second vent, the waterproof rubber ring can play a sealing role to prevent accumulated water from seeping in.

[0017] The present invention is beneficial in that:

[0018] 1. The expandable control cabinet for preventing heavy snow accumulation outdoors described in the present invention allows the accumulated snow on the top cover to slide down along the surface of the top cover through the V-shaped structure and elastic material of the top cover. At the same time, during the rising and falling process of the cabinet body, the columns in the cabinet body are triggered to squeeze the control buttons on the top cover, thereby starting the motor in the top cover. After the motor is started, the rotating rod is driven to rotate through the first gear, the second gear and the belt, thereby driving the roller fixed on the rotating rod to rotate, and then the protrusions on the roller break up the accumulated snow, thereby preventing heavy snow accumulation.

[0019] 2. The expandable control cabinet for preventing heavy snow accumulation outdoors described in the present invention introduces air through the second vent under the waterproof curtain to dissipate heat for the cabinet body, and achieves the effect of closing the second vent in the presence of water by floating the rotating plate in the presence of water and the mutual attraction and connection between the first magnet thereon and the second magnet at the second vent. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 is a stereogram of the present invention;

[0022] Figure 2 is a first cross-sectional view of the present invention;

[0023] Figure 3 is a cross-sectional view of a drum of the present invention;

[0024] Figure 4 yes Figure 2 A partial enlarged view of the middle A;

[0025] Figure 5 is a second cross-sectional view of the present invention;

[0026] Figure 6 yes Figure 5 Cross-sectional view at center BB

[0027] In the figure: 1. cabinet body; 2. cabinet top; 3. first spring; 4. first vent; 5. top cover; 6. column; 7. first slide; 8. control button; 9. motor; 10. first gear; 11. second gear; 12. belt; 13. rotating rod; 14. roller; 15. protrusion; 16. through hole; 17. plug; 18. second spring; 19. rotating rod; 20. first piston; 21. cylindrical cavity; 22. air guide channel; 23. first air inlet valve; 24. second slide; 25. second piston; 26. second air inlet valve; 27. exhaust valve; 28. air bag; 29. ​​whistle; 30. rubber bag; 31. pinhole groove; 32. slider; 33. string; 34. steel needle; 35. waterproof curtain; 36. second vent; 37. rotating plate; 38. first magnet; 39. second magnet; 40. waterproof rubber ring. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Embodiment 1

[0029] like Figures 1 to 4 As shown, an expandable control cabinet for preventing heavy snow accumulation outdoors described in an embodiment of the present invention comprises a cabinet body 1; a cabinet top 2 is slidably connected to the top of the cabinet body 1; a first spring 3 is fixedly connected between the cabinet top 2 and the cabinet body 1; a first vent 4 is provided on the side surface of the cabinet top 2; a top cover 5 is fixedly connected to the top surface of the cabinet top 2, and the cross-section of the top cover 5 is designed as a V-shaped structure, with both ends of the top cover 5 bent upward; during operation, when encountering rainy and snowy weather, the V-shaped top cover 5 will divert rain and snow to its two sides, and because the two ends of the top cover 5 are bent upward, a small amount of rain and snow will accumulate at the bending part, resulting in an increase in the weight of the top cover 5, so that the cabinet top 2 fixedly connected thereto will slide downward along the surface of the cabinet body 1 and compress the first spring 3. At this time, the first vent 4 provided on the surface of the cabinet top 2 will be blocked by the side surface of the cabinet body 1, thereby blocking the rain and snow. The top cover 5 is a spring loaded cabinet 1 and a spring loaded cabinet 1 is a spring loaded cabinet 1. The spring loaded cabinet 1 is a spring loaded cabinet 1 and a spring loaded cabinet 1 is a spring loaded cabinet 1. The spring loaded cabinet 1 is a spring loaded cabinet 1 and a spring loaded cabinet 1 is a spring loaded cabinet 1. The spring loaded cabinet 1 is a spring loaded cabinet 1 and a spring loaded cabinet 1 is a spring loaded cabinet 1.

[0030] The top surface of the cabinet body 1 is fixedly connected to the column 6; the interior of the cabinet top 2 is provided with a first slide groove 7 at the corresponding position of the column 6; the bottom of the first slide groove 7 is fixedly connected to a control button 8; the interior of the cabinet top 2 is fixedly connected to a motor 9; the output shaft surface of the motor 9 is fixedly connected to a first gear 10; the interior of the top cover 5 is rotatably connected to a second gear 11 at the position of the first gear 10, and the second gear 11 is meshed with the first gear 10; the shaft surface of the second gear 11 is rotatably connected to a belt 12; the interior of the top cover 5 is rotatably connected to a uniformly arranged rotating rod 13 at the position of the belt 12; the surface of the rotating rod 13 is fixedly connected to a roller 14; a plurality of protrusions 15 are provided on the side surface of the roller 14; during operation, when encountering severe weather such as heavy snow, the top cover 5 will be stuck with more snow due to the melting and resolidification of the snow on its surface, and the snow on the top cover 5 will continue to accumulate, causing the cabinet top 2 to slide downward along the surface of the cabinet body 1 and compress the first spring 3, thereby causing the cabinet body The column 6 fixed on the top surface of 1 enters the first slide groove 7 and squeezes the control button 8 at the bottom of the first slide groove 7, thereby starting the motor 9. After the motor 9 is started, it will drive the fixed first gear 10 on its output shaft to rotate, and the first gear 10 will then drive the second gear 11 meshed with it to rotate, and the rotating shaft of the second gear 11 will drive the belt 12 connected to it to move, and the belt 12 will then drive the rotating rod 13 on it to rotate, and finally the rotating rod 13 will drive the roller 14 fixed on its surface to rotate, and the protrusion 15 fixed on the surface of the roller 14 will break up the snow stuck on the top cover 5, so that the snow can fall better along the surface of the top cover 5, preventing excessive snow from crushing the cabinet 1 and the top cover 5. When the snow on the top cover 5 is cleared, the weight of the top cover 5 is reduced, the first spring 3 is restored, and the cabinet top 2 will move upward along the surface of the cabinet 1, and the column 6 on the top surface of the cabinet 1 will no longer squeeze the control button 8. The motor 9 stops working one minute after the control button 8 is no longer squeezed, so as to better clear the snow stuck on the surface of the top cover 5.

[0031] The side surface of the drum 14 is evenly provided with a plurality of through holes 16; the protrusion 15 is rotatably connected to the side surface of the drum 14; a plug 17 is fixedly connected to the surface of the protrusion 15 at a position corresponding to the through hole 16, and a second spring 18 is fixedly connected between the protrusion 15 and the drum 14; the drum 14 is filled with salt; when working, the drum 14 will drive the protrusion 15 fixedly connected to its surface to rotate clockwise. When there is a lot of snow, the protrusion 15 will be hindered by the snow when it rotates clockwise, and the protrusion 15 will slightly rotate counterclockwise. The second spring 18 is stretched so that the salt in the drum 14 can leak out through the through hole 16 to melt the snow. When there is not much snow, the protrusion 15 will not be squeezed by the snow. The second spring 18 recovers from the stretched state and drives the protrusion 15 to rotate slightly clockwise, so that the plug 17 on the protrusion 15 is inserted into the through hole 16, thereby blocking the through hole 16 and achieving the purpose of reasonable use of salt.

[0032] The rotating rod 13 is hinged with a plurality of rotating rods 19 on the inner surface of the drum 14; when working, when the rotating rod 13 rotates, it will drive the rotating rod 13 hinged on its surface to rotate. After the rotating rod 19 is driven by the rotating rod 13 to the highest point, it hits the salt pile under the action of its own gravity, breaking the salt particles in the salt pile into small granules, making it easier for the salt particles to leak out of the through hole 16, and preventing the salt particles from getting damp and forming lumps, thereby blocking the through hole 16.

[0033] The lower surface of the top cover 5 is fixedly connected to the first piston 20; the cabinet top 2 is fixedly connected to a cylindrical cavity 21 at a position corresponding to the first piston 20, and the cylindrical cavity 21 is slidably connected to the first piston 20; a plurality of one-way valves are arranged on the side of the cylindrical cavity 21; the cabinet top 2 is provided with an air guide channel 22 at the position of the cylindrical cavity 21; a first air inlet valve 23 is fixedly connected in the air guide channel 22; when working, when wind blows through the top cover 5 from the outside, the top cover 5 will vibrate, and the vibration of the top cover 5 will drive the first piston 20 to move in the cylindrical cavity 2 1, when the first piston 20 presses against the top cover 5, the one-way valve on the side of the cylindrical cavity 21 is in a closed state, and the air in the cylindrical cavity 21 will not overflow, and the air in the cylindrical cavity 21 will be pressed into the cabinet top 2 through the first air inlet valve 23 and the air guide channel 22. When the first piston 20 moves away from the cabinet top 2, it will inhale air from the outside through the one-way valve. At this time, the first air inlet valve 23 is in a closed state. The whole process will continuously blow air into the whole formed by the cabinet top 2 and the cabinet body 1, so as to achieve the effect of heat dissipation for the electrical components in the cabinet body 1.

[0034] A second slide groove 24 is provided in the first piston 20; a second piston 25 is slidably connected in the second slide groove 24; a second air inlet valve 26 and an air exhaust valve 27 are symmetrically arranged on the side wall of the second slide groove 24; an air bag 28 is fixedly connected to the air exhaust valve 27; a whistle 29 is fixedly connected to the end of the air bag 28 away from the air exhaust valve 27; when working, when a bird stays or wind blows through the top cover 5, it will cause the top cover 5 to vibrate, and the vibration of the top cover 5 will drive the second piston 25 to reciprocate in the second slide groove 24. When the second piston 25 moves to the bottom of the groove away from the second slide groove 24, the second slide groove 24 will pass through the second air inlet valve 26 inhales air from the outside, and the exhaust valve 27 is in a closed state at this time. When the second piston 25 moves toward the bottom of the second slide groove 24, the gas in the second slide groove 24 will be discharged into the airbag 28 through the exhaust valve 27. At this time, the second intake valve 26 is in a closed state. After the airbag 28 is filled with gas, the gas will be discharged through the whistle 29 fixedly connected to the airbag 28. The gas makes a sound through the whistle 29, which achieves the effect of driving away birds and warning passers-by. At the same time, a certain amount of gas can be stored in the airbag 28, and then continuously discharged through the whistle 29 and sounding, which can extend the sounding time of the whistle 29 and improve the effect of driving away birds.

[0035] A rubber bag 30 is fixedly connected to the bottom surface of the first piston 20; the rubber bag 30 is filled with dry powder for fire extinguishing; a pinhole groove 31 is opened at the position of the cylindrical cavity 21 of the cabinet top 2; a slider 32 is slidably connected to the pinhole groove 31; a thin rope 33 is fixedly connected between the slider 32 and the bottom of the pinhole groove 31; a steel needle 34 is fixedly connected to the surface of the slider 32 away from the bottom of the groove, and the steel needle 34 is slidably connected to the pinhole groove 31; during operation, when a fire occurs in the cabinet 1, the high temperature will break the thin rope 33, and the gas between the slider 32 and the pinhole groove 31 will expand, and the slider 32 and the steel needle 34 fixedly connected to the surface of the slider 32 will be pushed out of the pinhole groove 31, piercing the rubber bag 30 fixedly connected to the bottom surface of the first piston 20, so that the dry powder for fire extinguishing in the rubber bag 30 will be spilled and fall into the top cover 5 and the cabinet 1 along the air guide channel 22, thereby playing a role in extinguishing the fire.

[0036] A waterproof curtain 35 is fixedly connected between the top cover 5, the cabinet body 1 and the cabinet top 2; a second vent 36 is provided at the bottom of the waterproof curtain 35; when in operation, the waterproof curtain 35 covers the side surfaces of the top cover 5 and the cabinet body 1 to prevent rainwater from entering the cabinet body 1 through the first vent 4 and damaging the electrical components in the cabinet body 1. The second vent 36 provided at the bottom of the waterproof curtain 35 allows gas to enter the cabinet body 1 during high temperatures in summer to help dissipate heat. Embodiment 2

[0037] See also Figure 5 and Figure 6As shown, compared with Example 1, another implementation of the present invention is: a rotating plate 37 is rotatably connected to the surface of the cabinet 1 at the position of the second vent 36; a circle of first magnets 38 are fixedly connected around the rotating plate 37; a circle of second magnets 39 are fixed around the second vent 36; during operation, when water accumulates in the rainy season, the accumulated water will drive the lightweight rotating plate 37 to float, and the rotating plate 37 will rotate. When the first magnet 38 on the edge of the rotating plate 37 and the second magnet 39 fixedly connected to the second vent 36 at the bottom of the waterproof curtain 35 are close enough, they will attract and connect with each other, thereby closing the second vent 36 to prevent the accumulated water from flowing back into the cabinet 1 through the second vent 36 and causing damage to the electrical components in the cabinet 1.

[0038] A waterproof rubber ring 40 is fixedly connected around the second vent 36; during operation, when the rotating plate 37 seals the second vent 36, the waterproof rubber ring 40 can play a sealing role to prevent accumulated water from seeping in.

[0039] Working principle: When encountering rainy and snowy weather, the V-shaped top cover 5 will guide the rain and snow to its two sides. Since the two ends of the top cover 5 are bent upward, a small amount of rain and snow will accumulate at the bends, resulting in an increase in the weight of the top cover 5, so that the top cover 5 will slide downward along the surface of the cabinet 1 and compress the first spring 3. At this time, the first vent 4 opened on the surface of the top cover 5 will be blocked by the side surface of the cabinet 1, thereby preventing rain and snow from entering the cabinet 1, thereby protecting the electrical components in the cabinet 1, so that the electrical components avoid short circuit or corrosion caused by contact with rain and snow. When rain and snow further accumulate on the top cover 5, since the top cover 5 is made of elastic material, The deformation causes the two sides of the top cover 5 to bend, allowing the accumulated snow or rain to slide down along the surface of the top cover 5, preventing excessive accumulation of rain and snow and crushing the top cover 5 and the cabinet 1. When the rainy and snowy weather ends and the accumulation of rain and snow on the top cover 5 decreases, the weight of the top cover 5 is reduced, and the compressed first spring 3 will recover and drive the cabinet top 2 to slide upward along the surface of the cabinet 1. Since the top of the cabinet 1 is connected to the inside of the cabinet top 2, the upward movement of the cabinet top 2 increases the volume of the cabinet 1. At the same time, the cabinet top 2 drives the first air hole opened on its surface to move upward, so that the first air hole is no longer blocked by the surface of the cabinet 1, which is beneficial to the air circulation in the cabinet 1 and helps heat dissipation. When encountering severe snowy weather, the top cover 5 will stick to more snow due to the melting and resolidification of the snow on its surface. The snow on the top cover 5 will continue to accumulate, causing the cabinet top 2 to slide downward along the surface of the cabinet body 1 and compress the first spring 3, thereby causing the column 6 fixed on the top surface of the cabinet body 1 to enter the first slide groove 7 and squeeze the control button 8 at the bottom of the first slide groove 7, thereby starting the motor 9. After the motor 9 is started, it will drive the fixed first gear 10 on its output shaft to rotate, and the first gear 10 will then drive the meshed second gear 11 to rotate, and the rotating shaft of the second gear 11 will drive the belt 12 connected to it to move, and the belt 12 then drives the rotating rod 13 thereon to rotate, and finally the rotating rod 13 drives the roller 14 fixed on its surface to rotate, and the protrusions 15 fixed on the surface of the roller 14 will break up the snow stuck on the top cover 5, so that the snow can fall better along the surface of the top cover 5, preventing excessive snow from crushing the cabinet 1 and the top cover 5. When the snow on the top cover 5 is cleared, the weight of the top cover 5 is reduced, the first spring 3 is restored, and the cabinet top 2 will move upward along the surface of the cabinet 1, and the column 6 on the top surface of the cabinet 1 will no longer squeeze the control button 8. The motor 9 stops working one minute after the control button 8 is no longer squeezed, so as to better clear the snow stuck on the surface of the top cover 5.The drum 14 will drive the protrusion 15 fixed on its surface to rotate clockwise. When there is a lot of snow, the protrusion 15 will be hindered by the snow when it rotates clockwise, and the protrusion 15 will rotate slightly counterclockwise, and drive the plug 17 fixed on its surface to move away from the through hole 16, thereby opening the through hole 16 blocked by the plug 17, and stretching the second spring 18, so that the salt in the drum 14 can leak out through the through hole 16, which plays a role in melting the snow. When there is not much snow, the protrusion 15 will not be squeezed by the snow, and the second spring 18 recovers from the stretched state, driving the protrusion 15 to rotate slightly clockwise, so that the plug 17 on the protrusion 15 is plugged into the through hole 16, thereby blocking the through hole 16 and achieving the purpose of reasonable use of salt. When the rotating rod 13 rotates, it drives the rotating rod 13 hinged on its surface to rotate. After the rotating rod 19 rotates to the highest point driven by the rotating rod 13, it hits the salt pile under the action of its own gravity, breaking the salt particles in the salt pile into small particles, making it easier for the salt particles to leak out of the through hole 16, and preventing the salt particles from getting damp and forming agglomerates, thereby blocking the through hole 16.

[0040] When wind blows through the top cover 5 from the outside, the top cover 5 will vibrate, and the vibration of the top cover 5 will drive the first piston 20 to reciprocate in the cylindrical cavity 21. When the first piston 20 presses against the top cover 5, the one-way valve on the side of the cylindrical cavity 21 is in a closed state, and the air in the cylindrical cavity 21 will not overflow, and the air in the cylindrical cavity 21 will be pressed into the cabinet top 2 through the first air inlet valve 23 and the air guide channel 22. When the first piston 20 moves away from the cabinet top 2, it will inhale air from the outside through the one-way valve. At this time, the first air inlet valve 23 is in a closed state. The entire process will continuously blow air into the whole formed by the cabinet top 2 and the cabinet body 1, so as to achieve the effect of dissipating heat for the electrical components in the cabinet body 1. When a bird stays or wind blows through the top cover 5, the top cover 5 will vibrate. The vibration of the top cover 5 will drive the second piston 25 to reciprocate in the second slide groove 24. When the second piston 25 moves toward the bottom of the groove away from the second slide groove 24, the second slide groove 24 will inhale air from the outside through the second air inlet valve 26. At this time, the exhaust valve 27 is in a closed state. When the second piston 25 moves toward the bottom of the second slide groove 24, the gas in the second slide groove 24 will be discharged into the air bag 28 through the exhaust valve 27. At this time, the second air inlet valve 26 is in a closed state. After the air bag 28 is filled with gas, the gas will be discharged through the whistle 29 fixedly connected to the air bag 28. The gas makes a sound through the whistle 29, which achieves the effect of driving away birds and warning passers-by. At the same time, a certain amount of gas can be stored in the air bag 28, and then continuously discharged through the whistle 29 and sounding, which can extend the sounding time of the whistle 29 and improve the effect of driving away birds. When a fire occurs in the cabinet 1, the high temperature will cause the thin rope 33 to break and the gas between the slider 32 and the pinhole groove 31 to expand, pushing the slider 32 and the steel needle 34 fixed to the surface of the slider 32 out of the pinhole groove 31, piercing the rubber bag 30 fixed to the bottom surface of the first piston 20, so that the fire extinguishing dry powder in the rubber bag 30 will be spilled and fall into the top cover 5 and the cabinet 1 along the air guide channel 22, thereby playing a role in extinguishing the fire.

[0041] The waterproof curtain 35 covers the top cover 5 and the side surface of the cabinet 1 to prevent rainwater from entering the cabinet 1 through the first vent 4 and damaging the electrical components in the cabinet 1. The second vent 36 at the bottom of the waterproof curtain 35 helps to allow gas to enter the cabinet 1 during high temperatures in summer to help dissipate heat. When water accumulates in the rainy season, the accumulated water will drive the lightweight rotating plate 37 to float up, and the rotating plate 37 will rotate. When the first magnet 38 at the edge of the rotating plate 37 and the second magnet 39 fixed to the second vent 36 at the bottom of the waterproof curtain 35 are close enough, they will attract and connect with each other, playing the role of closing the second vent 36, preventing the accumulated water from flowing back into the cabinet 1 through the second vent 36 and causing damage to the electrical components in the cabinet 1. When the rotating plate 37 seals the second vent 36, the waterproof rubber ring 40 can play a sealing role to prevent the accumulated water from seeping in.

[0042] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0043] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0044] 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. The above embodiments and descriptions are only for explaining the principles of the present invention. 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 protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An expandable control cabinet for outdoor snow accumulation prevention, characterized by: The cabinet comprises a cabinet body (1); a cabinet top (2) is slidably connected to the top of the cabinet body (1); a first spring (3) is fixedly connected between the cabinet top (2) and the cabinet body (1); a first vent (4) is provided on the side surface of the cabinet top (2); a top cover (5) is fixedly connected to the top surface of the cabinet top (2); the cross section of the top cover (5) is designed as a V-shaped structure, and both ends of the top cover (5) are bent upwards; The top surface of the cabinet body (1) is fixedly connected to the column (6); a first slide groove (7) is provided inside the cabinet top (2) at a position corresponding to the column (6); a control button (8) is fixedly connected to the bottom of the first slide groove (7); a motor (9) is fixedly connected inside the cabinet top (2); a first gear (10) is fixedly connected to the surface of the output shaft of the motor (9); a second gear (11) is rotatably connected to the inside of the top cover (5) at the position of the first gear (10), and the second gear (11) is meshingly connected to the first gear (10); a belt (12) is rotatably connected to the surface of the rotating shaft of the second gear (11); a rotating rod (13) arranged evenly is rotatably connected to the inside of the top cover (5) at the position of the belt (12); a roller (14) is fixedly connected to the surface of the rotating rod (13); a plurality of protrusions (15) are provided on the side surface of the roller (14); The side surface of the drum (14) is evenly provided with a plurality of through holes (16); the protrusion (15) is rotatably connected to the side surface of the drum (14); a plug (17) is fixedly connected to the surface of the protrusion (15) at a position corresponding to the through hole (16); a second spring (18) is fixedly connected between the protrusion (15) and the drum (14); and the drum (14) is filled with salt.

2. The expandable control cabinet for outdoor heavy snow accumulation prevention according to claim 1, characterized in that: The rotating rod (13) is hingedly connected to a plurality of rotating bars (19) on the inner surface of the drum (14).

3. The expandable control cabinet for outdoor heavy snow accumulation prevention according to claim 1 is characterized in that: The lower surface of the top cover (5) is fixedly connected to a first piston (20); the cabinet top (2) is fixedly connected to a columnar cavity (21) at a position corresponding to the first piston (20), and the columnar cavity (21) is slidably connected to the first piston (20); a plurality of one-way valves are arranged on the side of the columnar cavity (21); an air guide channel (22) is opened on the cabinet top (2) at the position of the columnar cavity (21); and a first air inlet valve (23) is fixedly connected in the air guide channel (22).

4. The expandable control cabinet for outdoor heavy snow accumulation prevention according to claim 3 is characterized in that: A second slide groove (24) is provided in the first piston (20); a second piston (25) is slidably connected in the second slide groove (24); a second air inlet valve (26) and an air outlet valve (27) are symmetrically arranged on the side wall of the second slide groove (24); an air bag (28) is fixedly connected to the air bag (27); and a whistle (29) is fixedly connected to one end of the air bag (28) away from the air bag (27).

5. The expandable control cabinet for outdoor heavy snow accumulation prevention according to claim 3 is characterized in that: A rubber bag (30) is fixedly connected to the bottom surface of the first piston (20); the rubber bag (30) is filled with dry powder for fire extinguishing; a pinhole groove (31) is provided on the cabinet top (2) at the position of the cylindrical cavity (21); a slider (32) is slidably connected to the pinhole groove (31); a thin rope (33) is fixedly connected between the slider (32) and the bottom of the pinhole groove (31); a steel needle (34) is fixedly connected to the surface of the slider (32) away from the bottom of the groove, and the steel needle (34) is slidably connected to the pinhole groove (31).

6. The expandable control cabinet for outdoor heavy snow accumulation prevention according to claim 1 is characterized in that: A waterproof curtain (35) is fixedly connected between the top cover (5), the cabinet body (1) and the cabinet top (2); a second ventilation hole (36) is provided at the bottom of the waterproof curtain (35).

7. The expandable control cabinet for outdoor heavy snow accumulation prevention according to claim 6, characterized in that: A rotating plate (37) is rotatably connected to the surface of the cabinet (1) at the position of the second ventilation opening (36); a circle of first magnets (38) is fixedly connected around the rotating plate (37); and a circle of second magnets (39) is fixedly connected around the second ventilation opening (36).

8. The expandable control cabinet for outdoor heavy snow accumulation prevention according to claim 7, characterized in that: A waterproof rubber ring (40) is fixedly connected around the second vent (36).

Images