Outdoor high-voltage power distribution cabinet

Abstract

The invention discloses an outdoor high-voltage power distribution cabinet, and relates to the field of power equipment, the outdoor high-voltage power distribution cabinet comprises a cabinet body, a power mechanism, a dredging and pushing mechanism, an air guide mechanism and a snow removal mechanism, the upper end of the cabinet body is provided with a fan body, the bottom end of the fan body is provided with a second air supply pipe, and the top end of the fan body is provided with a fan motor; ventilation openings are formed in the lower ends of the two sides of the interior of the cabinet body, the power mechanism is used for providing power for the dredging and pushing mechanism and the air guide mechanism, the dredging and pushing mechanism is used for dredging the interior of the ventilation openings, and the air guide mechanism is used for cleaning the lower ends of the two sides of the cabinet body. The ventilation cylinder is inserted into the ventilation opening to remove blockages, hot air accumulated in the air bag is discharged directionally, internal and external bidirectional cleaning of the ventilation opening is achieved, local temperature is increased by hot air flow, the ventilation opening is prevented from freezing, and internal and external air circulation efficiency of the cabinet body is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power equipment, and specifically to an outdoor high-voltage power distribution cabinet. Background Art

[0002] Outdoor high-voltage distribution cabinets face multiple technical challenges in snowy and rainy environments: snow accumulation blocks the heat dissipation holes, causing heat conduction obstruction; snowmelt water seeps into the cabinet, causing insulation resistance to drop; frost heave stress destroys structural stability; corona corrosion accelerates equipment aging; low-temperature ice film causes operating mechanism jamming. These problems make traditional sealing and passive heating technologies very ineffective in protection.

[0003] Publication No. CN113363828A, the outdoor high-voltage power distribution cabinet of the present invention is provided with a protective top frame inside, which can prevent snow from falling directly on the power distribution cabinet body, and prevent the snow from melting when the heat inside the power distribution cabinet body is high, causing water to enter the power distribution cabinet body. However, rain and snow carry debris and easily enter the ventilation area, and long-term accumulation leads to a decrease in ventilation efficiency, and the heat inside the power distribution cabinet cannot be discharged in time, affecting the stability of equipment operation. The traditional manual cleaning method is inefficient and costly.

[0004] Therefore, research and improvement are conducted in view of the existing deficiencies, and an outdoor high-voltage distribution cabinet is proposed. Summary of the invention

[0005] The purpose of the present invention is to provide an outdoor high-voltage distribution cabinet to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: an outdoor high-voltage power distribution cabinet, comprising: a cabinet, a power mechanism, a dredging mechanism, an air guide mechanism and a snow removal mechanism, a fan body is arranged at the upper end of the cabinet, a second air supply pipe is arranged at the bottom end of the fan body, a fan motor is arranged at the top end of the fan body, and vents are arranged at the lower ends of both sides of the cabinet;

[0007] The power mechanism is used to provide power for the evacuation mechanism and the air guide mechanism;

[0008] The dredging mechanism is used to dredge the interior of the vent;

[0009] The air guide mechanism is used to clean the lower ends of both sides of the cabinet;

[0010] The snow removal mechanism is used to remove snow accumulated on the top of the cabinet.

[0011] Further, the power mechanism includes a placement plate, an upper push rod, a first crank link, a receiving pivot, a second crank link, a horizontal push rod, and a driving motor. An intermediate position at the lower end inside the cabinet body is fixedly provided with a placement plate. A driving motor is arranged on the back of the placement plate. A receiving pivot is arranged at the front end of the driving motor. A limiting shaft cap is arranged at the front end of the receiving pivot. The second crank link is sleeved outside the receiving pivot. The second crank link is horizontally arranged on the front of the placement plate, and one end thereof extends towards the ventilation opening. A horizontal push rod is arranged at one end of the second crank link. The first crank link is sleeved on the back of the second crank link. An upper push rod is arranged at the top end of the first crank link.

[0012] Further, the dredging and pushing mechanism includes an inner groove, an air vent tube, a guide plate, a rain and snow sensor body, a bottom box, a rotating shaft, a first limiting tube, and a first spring. Inner grooves are opened on both sides at the bottom end of the cabinet body. The first limiting tube is horizontally arranged inside the inner groove. The first spring is arranged outside the first limiting tube. One end of the first spring is provided with a bottom box. A rotating shaft is arranged at the top end of the bottom box. A micro motor is arranged inside the bottom box, and the top end of the armature shaft of the micro motor is connected to the rotating shaft. A guide plate is arranged at the top end of the rotating shaft. An air vent tube is arranged on one side of the guide plate. A rain and snow sensor body is arranged at the upper end outside the ventilation opening. The diameter of the air vent tube is slightly smaller than the diameter of the ventilation opening.

[0013] Further, the micro motor inside the bottom box is electrically connected to the rain and snow sensor body through a wire. The rain and snow sensor body is used to collect physical signals in the area at the lower end outside the cabinet body and transmit the signals to the control module of the micro motor. The micro motor adjusts the rotation angle of the rotating shaft according to the received signals.

[0014] Further, the air guiding mechanism includes an upper delivery pipe, a lower inlet pipe, an upper push rod, a push piece, a piston cylinder, an inlet pipe, an outlet pipe, an air bag, and a first delivery pipe. A push piece is arranged at the top end of the upper push rod. The inlet pipe is arranged at the upper end outside the piston cylinder. The outlet pipe is arranged at the top end of the piston cylinder. The lower inlet pipe is arranged at the top end of the outlet pipe. The air bag is arranged at the top end of the lower inlet pipe. The upper delivery pipe is arranged at the top end of the air bag. A pressure valve and a one-way valve are arranged at the connection between the upper delivery pipe and the top end of the air bag. A one-way valve is arranged at the connection between the lower inlet pipe and the bottom of the air bag. One-way valves are arranged at the connections between the inlet pipe and the outlet pipe and the piston cylinder. The first delivery pipe is arranged at the top end of the upper delivery pipe. The outlet position of the first delivery pipe is parallel to the outside of the ventilation opening.

[0015] Furthermore, the snow removal mechanism includes an external rail plate, an external push plate, a curved rod, a scraper, an external horizontal pipe, a vertical plate, a horizontal compression spring, and a blocking block. The two sides of the bottom of the outer side of the cabinet body are provided with external rail plates. One side of the external rail plate is provided with a blocking block. The external horizontal pipe is horizontally arranged inside the external rail plate. A horizontal compression spring is sleeved outside the external horizontal pipe. One end of the horizontal compression spring is provided with a vertical plate. The top of the vertical plate is provided with an external push plate. The top of the external push plate is provided with a curved rod. The top of the curved rod is provided with a scraper. The shape of the scraper is an L-shaped structure. The position where the surface of the vertical plate and the ventilation opening are provided with holes is on the same straight line.

[0016] Furthermore, the length of the scraper is greater than the width of the cabinet body.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] 1. Through the coordinated operation of the dredging and pushing mechanism and the air guiding mechanism, the present invention clears the blockage by inserting the ventilation cylinder into the ventilation opening, combines the airbag to accumulate and discharge the hot gas in a directional manner, realizes the two-way cleaning inside and outside the ventilation opening, and the diameter adaptation design of the ventilation cylinder ensures smooth dredging. The hot air flow raises the local temperature, prevents the ventilation opening from freezing, and ensures the air circulation efficiency inside and outside the cabinet body;

[0019] 2. By adopting an L-shaped scraper and an elastic reset structure in the snow removal mechanism, the length of the scraper covers the width of the cabinet body, and it is combined with a thickened external horizontal pipe and a high-elastic compression spring to improve the snow removal ability in a heavy snow environment. The material of the scraper is stainless steel, which enhances the impact resistance and ensures the long-term operation stability, avoiding the deformation of the cabinet body structure or electrical faults caused by snow accumulation;

[0020] 3. Through the power mechanism, a single driving motor is used to link the dredging and pushing mechanism, the air guiding mechanism, and the snow removal mechanism, reducing the configuration of independent power sources. The crank arm link and push rod transmission structure simplifies the mechanical connection, reduces the maintenance complexity, avoids function interference, and improves the overall reliability and operation efficiency of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the high-voltage switchgear cabinet of the present invention;

[0022] Figure 2 It is a partial enlarged view of part a of the power mechanism of the present invention;

[0023] Figure 3 It is a partial enlarged view of part b of the dredging and pushing mechanism of the present invention;

[0024] Figure 4 It is a schematic diagram of the multi-angle structure of the high-voltage switchgear cabinet of the present invention;

[0025] Figure 5 It is a partial enlarged view of part c of the power mechanism of the present invention;

[0026] Figure 6 Partial enlarged view of the snow removal mechanism d of the present invention;

[0027] Figure 7 Schematic diagram of the airbag structure of the present invention;

[0028] Figure 8 Schematic diagram of the internal structure of the piston cylinder of the present invention.

[0029] In the figure: 1, cabinet body; 2, fan body; 3, fan motor; 4, scraper; 5, curved rod; 6, airbag; 7, intake pipe; 8, external push plate; 9, first air supply pipe; 10, rain and snow sensor body; 11, guide plate; 12, inner groove; 13, ventilation cylinder; 14, ventilation opening; 15, external rail plate; 16, second air supply pipe; 17, upper air supply pipe; 18, lower intake pipe; 19, bottom box; 20, rotating shaft; 21, first limiting pipe; 22, first spring; 23, piston cylinder; 24, upper push rod; 25, placement plate; 26, first crank-arm connecting rod; 27, bearing pivot; 28, second crank-arm connecting rod; 29, horizontal push rod; 30, drive motor; 31, limiting shaft cap; 32, push piece; 33, air outlet pipe; 34, external horizontal pipe; 35, vertical plate; 36, horizontal compression spring; 37, blocking block. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] As Figures 1 - 8 shown, a high-voltage power distribution cabinet for outdoor use includes: a cabinet body 1, a power mechanism, a dredging and pushing mechanism, a gas guiding mechanism, and a snow removal mechanism. A fan body 2 is provided at the upper end of the cabinet body 1. A second air supply pipe 16 is provided at the bottom end of the fan body 2. A fan motor 3 is provided at the top end of the fan body 2. Ventilation openings 14 are provided at the lower ends of both sides inside the cabinet body 1;

[0032] The power mechanism is used to provide power for the dredging and pushing mechanism and the gas guiding mechanism;

[0033] The dredging and pushing mechanism is used to dredge the inside of the ventilation opening 14;

[0034] The gas guiding mechanism is used to clean the lower ends of both sides of the cabinet body 1;

[0035] The snow removal mechanism is used to remove the snow on the top of the cabinet body 1.

[0036] The power mechanism includes a mounting plate 25, an upper push rod 24, a first crank-link 26, a bearing pivot 27, a second crank-link 28, a transverse push rod 29, and a driving motor 30. A mounting plate 25 is fixedly arranged at the middle of the inner lower end of the cabinet body 1. A driving motor 30 is arranged on the back of the mounting plate 25. A bearing pivot 27 is arranged at the front end of the driving motor 30. A limiting shaft cap 31 is arranged at the front end of the bearing pivot 27. A second crank-link 28 is sleeved outside the bearing pivot 27. The second crank-link 28 is horizontally arranged on the front of the mounting plate 25, and one end thereof extends towards the ventilation opening 14. A transverse push rod 29 is arranged at one end of the second crank-link 28. A first crank-link 26 is sleeved on the back of the second crank-link 28. An upper push rod 24 is arranged at the top end of the first crank-link 26;

[0037] The dredging and pushing mechanism includes an inner groove 12, a ventilation cylinder 13, a guide plate 11, a rain and snow sensor body 10, a bottom box 19, a rotating shaft 20, a first limiting tube 21, and a first spring 22. Inner grooves 12 are opened on both sides of the bottom end of the cabinet body 1. A first limiting tube 21 is horizontally arranged inside the inner grooves 12. A first spring 22 is arranged outside the first limiting tube 21. One end of the first spring 22 is provided with a bottom box 19. A rotating shaft 20 is arranged at the top end of the bottom box 19. A micro motor is arranged inside the bottom box 19. The top end of the armature shaft of the micro motor is connected to the rotating shaft 20. A guide plate 11 is arranged at the top end of the rotating shaft 20. A ventilation cylinder 13 is arranged on one side of the guide plate 11. A rain and snow sensor body 10 is arranged at the upper end outside the ventilation opening 14. The diameter of the ventilation cylinder 13 is slightly smaller than the diameter of the ventilation opening 14.

[0038] For the rest, the micro motor selects an RS-365 micro stepping motor and is installed inside the bottom box 19. The rain and snow sensor selects an LCS-YX series rain and snow sensor and is fixed at the position of the rain and snow sensor body 10 at the upper end outside the ventilation opening 14;

[0039] At the same time, the RS-365 micro stepping motor has a step angle of 1.8°, a rated voltage of 12V, and an output torque of 0.5 N·m, which is suitable for regulating the rotation angle of the rotating shaft 20; the LCS-YX series rain and snow sensor has a detection accuracy of 0.1 mm precipitation, a response time of ≤2 s, and a working voltage of 9-24V;

[0040] Among them, in rainy and snowy weather, the rain and snow sensor body 10 collects signals and transmits them to the micro motor control module within 2 s, triggering the micro motor to start. The armature shaft of the micro motor drives the rotating shaft 20 to rotate, and the guide plate 11 rotates to align the ventilation cylinder 13 with the ventilation opening 14;

[0041] In addition, the driving motor 30 in the power mechanism operates, the receiving pivot 27 drives the second crank-link 28, the cross push rod 29 pushes the bottom box 19 to compress the first spring 22, and the ventilation cylinder 13 is inserted into the ventilation opening 14. The micro motor drives the rotating shaft 20 to rotate to dredge the ventilation opening 14. When the rain and snow stop, the micro motor stops, the first spring 22 resets, the bottom box 19 drives the ventilation cylinder 13 to return to its original position, ensuring the smoothness of the ventilation opening 14.

[0042] As Figures 1 - 8 shown, a high-voltage power distribution cabinet for outdoor use, the air guiding mechanism includes an upper air supply pipe 17, a lower air inlet pipe 18, an upper push rod 24, a push plate 32, a piston cylinder 23, an air inlet pipe 7, an air outlet pipe 33, an airbag 6, and a first air supply pipe 9. A push plate 32 is provided at the top end of the upper push rod 24. An air inlet pipe 7 is provided at the upper end outside the piston cylinder 23. An air outlet pipe 33 is provided at the top end of the piston cylinder 23. A lower air inlet pipe 18 is provided at the top end of the air outlet pipe 33. An airbag 6 is provided at the top end of the lower air inlet pipe 18. An upper air supply pipe 17 is provided at the top end of the airbag 6. A pressure valve and a one-way valve are provided at the connection between the upper air supply pipe 17 and the top end of the airbag 6. A one-way valve is provided at the connection between the lower air inlet pipe 18 and the bottom of the airbag 6. One-way valves are provided at the connections between the air inlet pipe 7 and the air outlet pipe 33 and the piston cylinder 23. A first air supply pipe 9 is provided at the top end of the upper air supply pipe 17. The outlet position of the first air supply pipe 9 is parallel to the outside of the ventilation opening 14:

[0043] For the rest, the material of the airbag 6 is selected as low-temperature resistant rubber, and the capacity is increased to 5L to enhance the heat storage capacity; a temperature sensor is added at the connection between the upper air supply pipe 17 and the first air supply pipe 9. When the ambient temperature is lower than 0°C, the power mechanism drives the upper push rod 24, and the push plate 32 reciprocates in the piston cylinder 23, and the gas enters the airbag 6 through the air inlet pipe 7, the air outlet pipe 33, and the lower air inlet pipe 18;

[0044] The airbag 6 accumulates the hot gas in the cabinet body 1. When the pressure reaches the threshold value, the top pressure valve and the one-way valve open, and the gas is discharged through the upper air supply pipe 17 and the first air supply pipe 9. The temperature sensor detects the gas temperature. If it is higher than 0°C, the gas blows to the outside of the ventilation opening 14 to melt the ice; if it is lower than 0°C, the control system adjusts the rotation speed of the fan body 2, and the gas temperature in the cabinet body 1 is increased through the second air supply pipe 16 and then discharged;

[0045] Finally, by adjusting the parameters of the airbag 6 and optimizing the linkage with temperature detection, the cleaning and anti-icing functions of the air guiding mechanism in a cold environment are enhanced, ensuring the normal operation of the ventilation opening 14 area.

[0046] As Figures 1 - 8As shown in the figure, a high-voltage power distribution cabinet for outdoor use, the snow removal mechanism includes an external rail plate 15, an external push plate 8, a curved rod 5, a scraper 4, an external horizontal pipe 34, a vertical plate 35, a horizontal compression spring 36, and a blocking block 37. On both sides of the bottom of the outer side of the cabinet body 1, there are external rail plates 15. On one side of the external rail plate 15, there is a blocking block 37. Inside the external rail plate 15, there is a horizontally arranged external horizontal pipe 34. The outer side of the external horizontal pipe 34 is sleeved with a horizontal compression spring 36. One end of the horizontal compression spring 36 is provided with a vertical plate 35. The top of the vertical plate 35 is provided with an external push plate 8. The top of the external push plate 8 is provided with a curved rod 5. The top of the curved rod 5 is provided with a scraper 4. The shape of the scraper 4 is an L-shaped structure. The position of the hole opened in the surface of the vertical plate 35 and the ventilation opening 14 is on the same straight line.

[0047] For the rest, the material of the scraper 4 is replaced with stainless steel, the diameters of the external horizontal pipe 34 inside and outside the external rail plate 15 are thickened to 30 mm, and the elastic coefficient of the horizontal compression spring 36 is set to a larger value;

[0048] When heavy snow accumulates, the power mechanism is started, the driving motor 30 drives the receiving pivot 27, and the second crank-link 28 makes the vertical plate 35 move along the external rail plate 15, compressing the horizontal compression spring 36. The vertical plate 35 drives the external push plate 8, the curved rod 5 and the scraper 4 to move. The length of the L-shaped stainless steel scraper 4 is greater than the width of the cabinet body 1 to scrape the snow on the top of the cabinet body 1;

[0049] In addition, thickening the external horizontal pipe 34 improves the structural strength. After adjustment, the restoring force of the horizontal compression spring 36 is enhanced. After the snow is cleared, the horizontal compression spring 36 resets, and the vertical plate 35 drives the scraper 4 to return. Moreover, the position of the surface of the vertical plate 35 and the hole of the ventilation opening 14 is collinear, and the movement does not affect the function of the ventilation opening 14. By adjusting the material and parameters of the components, the snow removal mechanism's ability to cope with heavy snow is improved, and the operating environment of the power distribution cabinet is maintained.

[0050] Working principle: When using this high-voltage power distribution cabinet for outdoor use, first, after the driving motor 30 is started, it drives the receiving pivot 27 to rotate. The second crank-link 28 sleeved outside the receiving pivot moves along with it, and the horizontal push rod 29 at one end moves horizontally. At the same time, the first crank-link 26 sleeved on the back of the second crank-link is linked, so that the upper push rod 24 at the top generates a reciprocating up and down movement. This power output provides the operating basis for the dredging mechanism and the air guiding mechanism;

[0051] Then, the rain and snow sensor body 10 collects the physical signals at the lower end outside the cabinet body 1. At this time, the rain and snow sensor 10 can adopt the YS-YX01 sensor, and the micro motor can adopt the N20 micro DC motor. The signals are transmitted to the control module of the micro motor in the bottom box 19, triggering the start of the micro motor. The micro motor drives the rotating shaft 20 to rotate through the armature shaft, causing the guide plate 11 to rotate. The ventilation tube 13 on one side of the guide plate is aligned with the ventilation opening 14. At the same time, the horizontal push rod 29 of the power mechanism pushes the bottom box 19, compressing the first spring 22 outside the first limit tube 21. The bottom box drives the ventilation tube to insert into the ventilation opening. The diameter of the ventilation tube is slightly smaller than that of the ventilation opening to remove the internal blockage. When the signal disappears, the first spring resets, and the bottom box drives the ventilation tube to return to its original position, completing the ventilation opening dredging cycle;

[0052] Among them, the upper push rod 24 moves up and down under the drive of the power mechanism, and the push piece 32 reciprocates in the piston cylinder 23. When pushing up, the piston cylinder inhales air through the intake pipe 7, and when pushing down, the gas enters the airbag 6 through the outlet pipe 33 and the lower intake pipe 18. The airbag 6 accumulates the heat-carrying gas inside the cabinet body 1. As the gas volume increases, the internal pressure rises. When the gas volume reaches the threshold, the pressure valve and check valve at the connection between the top of the airbag 6 and the upper delivery pipe 17 open, and the gas enters the first delivery pipe 9 through the upper delivery pipe 17 and is discharged from the outlet of the first delivery pipe 9. The check valves in each pipeline ensure the one-way flow of the gas. The check valve at the bottom of the lower intake pipe 18 and the airbag 6 prevent the gas from flowing back. The discharged gas cleans the area outside the ventilation openings 14 at both lower ends of the cabinet body 1, and at the same time uses the heat-carrying gas to raise the local temperature to assist in preventing icing near the ventilation openings 14;

[0053] In addition, the power mechanism drives the vertical plate 35 to move along the external rail plate 15, compressing the horizontal compression spring 36 outside the external horizontal pipe 34. The vertical plate 35 drives the external push plate 8 and the curved rod 5 to move. The length of the L-shaped scraper 4 at the top of the curved rod is greater than the width of the cabinet body 1, which can comprehensively scrape the snow on the top of the cabinet body 1. After the movement ends, the horizontal compression spring 36 resets, and the vertical plate 35 drives the scraper 4 to return, completing the snow removal cycle. At the same time, the surface of the vertical plate 35 is collinear with the hole position of the ventilation opening 14 to ensure that the function of the ventilation opening 14 is not affected during the movement process;

[0054] At the same time, the fan body 2 operates under the drive of the fan motor 3, sending air into the cabinet body 1 through the second delivery pipe 16 at the bottom, cooperating with the ventilation opening 14 to maintain the internal air circulation, ensuring the ventilation and heat dissipation inside the cabinet, and ensuring the stable operation of the power distribution cabinet in the outdoor environment.

[0055] The embodiments of the present invention are given for purposes of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are chosen and described in order to best explain the principles of the invention and its practical application, and to enable those of ordinary skill in the art to understand the invention so as to design various embodiments with various modifications suitable for a particular purpose.

Claims

1. An outdoor high-voltage distribution cabinet, comprising: A cabinet (1), a power mechanism, a dredging mechanism, an air guide mechanism and a snow removal mechanism, characterized in that a fan body (2) is arranged at the upper end of the cabinet (1), a second air supply pipe (16) is arranged at the bottom end of the fan body (2), a fan motor (3) is arranged at the top end of the fan body (2), and ventilation openings (14) are arranged at the lower ends of both sides of the cabinet (1); The power mechanism is used to provide power for the evacuation mechanism and the air guide mechanism; The dredging mechanism is used to dredge the interior of the vent (14); The air guide mechanism is used to clean the lower ends of both sides of the cabinet (1); The snow removal mechanism is used to remove snow accumulated on the top of the cabinet (1).

2. An outdoor high-voltage power distribution cabinet according to claim 1, characterized in that: The power mechanism comprises a placement plate (25), an upper push rod (24), a first crank arm connecting rod (26), a receiving pivot (27), a second crank arm connecting rod (28), a horizontal push rod (29), and a driving motor (30); a placement plate (25) is fixedly arranged at the middle of the lower end of the inner side of the cabinet (1); a driving motor (30) is arranged on the back side of the placement plate (25); a receiving pivot (27) is arranged at the front end of the driving motor (30); and a receiving pivot (27) is arranged at the front end of the receiving pivot (27). A limiting shaft cap (31) is provided, a second crank arm connecting rod (28) is sleeved on the outer side of the receiving pivot shaft (27), the second crank arm connecting rod (28) is horizontally arranged on the front side of the placement plate (25), one end of which extends toward the vent (14), a transverse push rod (29) is provided at one end of the second crank arm connecting rod (28), a first crank arm connecting rod (26) is sleeved on the back side of the second crank arm connecting rod (28), and an upper push rod (24) is provided at the top end of the first crank arm connecting rod (26).

3. An outdoor high-voltage power distribution cabinet according to claim 1, characterized in that: The dredging mechanism comprises an inner slot (12), a ventilator (13), a guide plate (11), a rain and snow sensor body (10), a bottom box (19), a rotating shaft (20), a first position limiting tube (21), and a first spring (22). The inner slot (12) is provided on both sides of the bottom end of the cabinet (1). The first position limiting tube (21) is transversely arranged on the inner side of the inner slot (12). The first spring (22) is arranged on the outer side of the first position limiting tube (21). One end of the first spring (22) is provided with a A bottom box (19) is provided, a rotating shaft (20) is arranged at the top of the bottom box (19), a micro motor is arranged inside the bottom box (19), the top of the armature shaft of the micro motor is connected to the rotating shaft (20), a guide plate (11) is arranged at the top of the rotating shaft (20), a vent (13) is arranged on one side of the guide plate (11), a rain and snow sensor body (10) is arranged at the upper end of the outer side of the vent (14), and the diameter of the vent (13) is slightly smaller than the diameter of the vent (14).

4. An outdoor high-voltage power distribution cabinet according to claim 3, characterized in that: The micro motor inside the bottom box (19) is electrically connected to the rain and snow sensor body (10) via a wire. The rain and snow sensor body (10) is used to collect physical signals from the area at the lower end of the outer side of the cabinet (1) and transmit the signals to the control module of the micro motor. The micro motor controls the rotation angle of the shaft (20) according to the received signals.

5. An outdoor high-voltage power distribution cabinet according to claim 2, characterized in that: The air guide mechanism comprises an upper air delivery pipe (17), a lower inlet pipe (18), an upper push rod (24), a push piece (32), a piston cylinder (23), an air inlet pipe (7), an air outlet pipe (33), an air bag (6), and a first air delivery pipe (9). The top end of the upper push rod (24) is provided with a push piece (32). The upper end of the outer side of the piston cylinder (23) is provided with an air inlet pipe (7). The top end of the piston cylinder (23) is provided with an air outlet pipe (33). The top end of the air outlet pipe (33) is provided with a lower inlet pipe (18). An air bag (6) is provided, an upper delivery pipe (17) is provided at the top of the air bag (6), a pressure valve and a one-way valve are provided at the connection between the upper delivery pipe (17) and the top of the air bag (6), a one-way valve is provided at the connection between the lower inlet pipe (18) and the bottom of the air bag (6), and one-way valves are provided at the connection between the air inlet pipe (7), the air outlet pipe (33) and the piston cylinder (23), and a first air delivery pipe (9) is provided at the top of the upper delivery pipe (17), and the air outlet position of the first air delivery pipe (9) is parallel to the outer side of the ventilation port (14).

6. An outdoor high-voltage power distribution cabinet according to claim 1, characterized in that: The snow removal mechanism comprises an external rail plate (15), an external push plate (8), a curved rod (5), a scraper (4), an external transverse tube (34), a vertical plate (35), a transverse compression spring (36), and a blocking block (37). The external rail plates (15) are arranged on both sides of the bottom of the outer side of the cabinet (1), a blocking block (37) is arranged on one side of the external rail plate (15), an external transverse tube (34) is arranged transversely inside the external rail plate (15), and the external transverse tube (34) is arranged on the inner side of the external rail plate (15). A transverse compression spring (36) is sleeved on the outer side of the vent (34), a vertical plate (35) is provided at one end of the transverse compression spring (36), an external push plate (8) is provided at the top end of the vertical plate (35), a curved rod (5) is provided at the top end of the external push plate (8), a scraper (4) is provided at the top end of the curved rod (5), and the scraper (4) is L-shaped in shape. The surface of the vertical plate (35) is on the same straight line as the position where the hole of the vent (14) is opened.

7. An outdoor high-voltage power distribution cabinet according to claim 6, characterized in that: The length of the scraper (4) is greater than the width of the cabinet (1).

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