Outdoor low-voltage switchgear assembly with moisture-proof function

Abstract

The invention relates to the technical field of low-voltage switch equipment, in particular to outdoor low-voltage complete switch equipment with a moisture-proof function, which comprises a base, two upright posts are fixedly connected to the upper surface of the base, the upright posts are sleeved with side sleeves in a sealing and sliding manner, and the side sleeves are fixedly connected with a cabinet body; the cabinet body is provided with a moisture-proof mechanism, the moisture-proof mechanism comprises a micro-positive pressure part and a drying part, the micro-positive pressure part comprises a hollow top block, the top block is fixedly connected with the inner top wall of the cabinet body, and the two opposite side walls of the top block are fixedly connected with three first pipes and three third pipes in a penetrating mode respectively; the first pipes jointly penetrate through and are fixedly connected with a left side block, the third pipes jointly penetrate through and are fixedly connected with a right side block, and the top wall of the left side block is fixedly connected with a plurality of second pipes in a penetrating mode. The moisture-proof device has the advantages that the moisture-proof device has a good moisture-proof effect, and the influence of external water vapor on internal electronic components of the device is effectively avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of low-voltage switchgear, and in particular to an outdoor low-voltage complete switchgear with moisture-proof function. Background Art

[0002] Low-voltage complete switchgear is a collection of electrical devices used to receive, distribute, control and protect electric energy in power systems with an AC 50Hz and a rated voltage of 1kV or below. It is widely used in urban and rural power grids, industrial parks, municipal projects, residential communities and other scenarios. It is mainly used for power distribution, control and protection. In the distribution and control of power, low-voltage complete switchgear plays this important role. These devices are often used outdoors. The climate in outdoor work is complex and changeable, and they need to be exposed to natural conditions such as rain, humidity, high temperature, low temperature, and ultraviolet rays for a long time. Especially in rainy areas or coastal high-humidity environments, the moisture in the air is relatively high, which is more likely to enter the cabinet. At the same time, for areas with large temperature differences between day and night, the temperature difference between day and night in the outdoor environment in the early morning may cause "condensation", which also affects the safety of internal electronic components.

[0003] In the prior art, the equipment generates heat during operation. In order to ensure heat dissipation, the equipment often has multiple heat dissipation holes to facilitate internal heat dissipation. The equipment cannot be directly sealed, and thus it is inevitable that excessive moisture in the air enters the equipment, affecting the safe operation of the equipment. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art and to propose an outdoor low-voltage complete switchgear with moisture-proof function.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] An outdoor low-voltage complete switchgear with moisture-proof function, comprising a base, wherein the upper surface of the base is fixedly connected to two columns, the columns are sealingly and slidingly sleeved with side sleeves, and the side sleeves are fixedly connected to a cabinet body;

[0007] The cabinet is provided with a moisture-proof mechanism, which includes a micro-positive pressure component and a drying component. The micro-positive pressure component includes a hollow top block, which is fixedly connected to the top wall of the cabinet. The two opposite side walls of the top block are respectively penetrated and fixedly connected with three first tubes and three third tubes. The first tubes are commonly penetrated and fixedly connected with the left block, the third tubes are commonly penetrated and fixedly connected with the right block, and the top wall of the left block is penetrated and fixedly connected with multiple second tubes. The top block and the cabinet are commonly penetrated and rotatably connected with a rotating shaft, and one end of the rotating shaft located outside the cabinet is fixedly connected to a servo motor;

[0008] The drying component is composed of a moisture absorption component and a control component. The moisture absorption component includes a fixed ring, which is fixedly connected to the upper surface of the cabinet. The fixed ring is rotatably connected to a rotating block through a bearing. The control component includes a support block, which is fixedly connected to the upper surface of the cabinet.

[0009] The cabinet is provided with a lifting mechanism, which includes a sliding sleeve fixedly connected to the lower surface of the cabinet.

[0010] Furthermore, the micro-positive pressure component also includes a driving block, which is rotatably connected to the end of the rotating shaft located inside the top block through a one-way bearing, and two pump blocks are sealingly and slidingly connected inside the top block. A plurality of first springs are fixedly connected between the pump block and the inner wall of the top block, and a fourth tube is fixedly connected through the top wall of the right block and the top wall of the cabinet.

[0011] Furthermore, the rotating block is a hollow structure, and the moisture absorption component also includes a plurality of partitions, which are fixedly connected in the rotating block. The top wall and the bottom wall of the rotating block are both provided with a plurality of through holes, and the rotating block is filled with silica gel desiccant.

[0012] Furthermore, the control component also includes a skateboard, which is slidably connected to the support block, and a plurality of second springs are fixedly connected between the skateboard and the support block. A control switch is fixedly connected to the side wall of the support block close to the skateboard, and the control switch is connected to the servo motor through a PLC control circuit. A fixed plate is fixedly connected to the upper surface of the rotating block, and the rotating shaft and the fixed plate are rotatably connected through a one-way bearing. A plurality of expansion openings are opened on the side wall of the rotating block, and an elastic cloth is fixedly connected in the expansion opening.

[0013] Furthermore, a plurality of heating wires are fixedly connected to the inner bottom wall of the rotating block, a conductive ring is fixedly embedded in the inner side wall of the fixed ring, and a plurality of conductive blocks are fixedly embedded in the side wall of the rotating block. The conductive blocks, conductive rings and heating wires are electrically connected through wires.

[0014] Furthermore, the lifting mechanism also includes a slider, which is slidably connected to the sliding sleeve, a buoyancy block is fixedly connected to the lower surface of the slider, a button switch is fixedly connected to the top wall of the slider, the left block, the cabinet and one of the side sleeves are commonly penetrated and fixedly connected with a fifth tube, the side wall of the other side sleeve is penetrated and fixedly connected with a seventh tube, and the two side sleeves are commonly penetrated and fixedly connected with a sixth tube, a first solenoid valve is arranged in the fifth tube, and a second solenoid valve is arranged in the second tube and the seventh tube, and the first solenoid valve, the second solenoid valve and the button switch are electrically connected via wires.

[0015] Furthermore, the top wall of the cabinet is fixedly connected to a ceiling via a rod, the servo motor is fixedly connected to the ceiling, and a plurality of air holes are provided on the side wall of the cabinet.

[0016] Furthermore, one-way valves are provided in the first tube and the third tube, and the side walls of the pump block and the drive block are coated with grease.

[0017] Furthermore, a filter is provided in the through hole, and the top wall of the rotating block is rotatably connected to a plurality of processing doors via a hinge.

[0018] Furthermore, the rotating block and the fixing ring are both made of polytetrafluoroethylene, and the partition is made of polyurethane.

[0019] The present invention has the following advantages:

[0020] 1. The cabinet is set in the air and does not directly contact the ground, thus preventing moisture from the ground from directly entering the cabinet and playing a certain moisture-proof role;

[0021] 2. The servo motor drives the driving block to rotate, so that the pump block continuously reciprocates, thereby continuously pumping air into the cabinet. The continuously pumped air keeps the cabinet in a slightly positive pressure state, and the air pressure is always greater than the outside air, thus preventing the outside air from directly entering the cabinet through the air holes, thereby preventing the outside water vapor from entering the cabinet;

[0022] 3. The air pumped into the cabinet by the pump block is absorbed from the outside. During the absorption process, the air will pass through the rotor block and the silica gel desiccant inside the rotor block will absorb the moisture in the air, ensuring that the air pumped into the cabinet is dry air, thereby achieving a certain moisture-proof effect;

[0023] 4. During operation, air continuously enters the cabinet through the rotating block. The silica gel desiccant in the rotating block will expand after absorbing moisture. As the silica gel desiccant expands, its volume continues to increase, causing the elastic cloth to bulge until the elastic cloth causes the slide plate to trigger the switch. At this time, the rotating block will rotate and replace another set of silica gel desiccant for drying. This realizes the automatic replacement of desiccant, eliminating the need for regular manual replacement. This greatly improves the degree of automation while preventing the desiccant from being fully adsorbed and affecting the moisture-proof effect.

[0024] 5. During the rotation of the rotating block, the conductive block will also come into contact with the conductive ring, so that the heating wire that rotates away from the area above the fourth tube will be energized, heating the fully adsorbed silica gel desiccant and desorbing the adsorbed moisture, thereby realizing the recycling of the desiccant;

[0025] 6. On rainy days, if rainwater accumulates on the ground and approaches the cabinet, the water surface will cause the buoyancy block to drive the slider up, triggering the button switch. At this time, air will no longer be pumped into the cabinet, but into the side sleeve, raising the cabinet height to prevent rainwater from approaching the cabinet and entering its interior. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic structural diagram of an outdoor low-voltage complete switchgear with moisture-proof function proposed by the present invention;

[0027] Figure 2 This is a schematic diagram of the internal structure of a moisture-proof outdoor low-voltage switchgear assembly proposed by the present invention in longitudinal section;

[0028] Figure 3 for Figure 2 A magnified view of point A in the figure;

[0029] Figure 4 for Figure 2 Enlarged view of point B in FIG.

[0030] Figure 5 for Figure 2 Enlarged view of point C in the figure;

[0031] Figure 6 This is a schematic diagram of the internal structure of a cross-section of an outdoor low-voltage complete switchgear with moisture-proof function proposed by the present invention;

[0032] Figure 7 This is a schematic diagram of the internal structure of another cross-section of an outdoor low-voltage complete switchgear with moisture-proof function proposed by the present invention;

[0033] Figure 8 for Figure 7 The enlarged view of point D in the figure;

[0034] Figure 9 This is a structural schematic diagram of a transfer block for outdoor low-voltage complete switchgear with moisture-proof function proposed by the present invention.

[0035] In the figure: 1 base, 2 column, 3 side sleeve, 4 cabinet, 5 top block, 6 rotating shaft, 7 servo motor, 8 drive block, 9 pump block, 10 first spring, 11 left block, 12 right block, 13 first tube, 14 second tube, 15 third tube, 16 fixing ring, 17 rotating block, 18 through hole, 19 fourth tube, 20 partition, 21 support block, 22 slide plate, 23 second spring, 24 control switch, 25 expansion port, 26 elastic cloth, 27 silica gel desiccant, 28 conductive block, 29 conductive ring, 30 heating wire, 31 fixed plate, 32 fifth tube, 33 sixth tube, 34 seventh tube, 35 sliding sleeve, 36 slider, 37 buoyancy block, 38 push button switch, 39 first solenoid valve, 40 second solenoid valve, 41 ceiling, 42 air hole, 43 processing door. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0037] Example

[0038] Reference Figure 1-9 , an outdoor low-voltage complete switchgear with moisture-proof function, comprising a base 1, two columns 2 are fixedly connected to the upper surface of the base 1, the columns 2 are sealed and slidably sleeved with side sleeves 3, and the side sleeves 3 are fixedly connected to a cabinet 4;

[0039] The cabinet 4 is provided with a moisture-proof mechanism, which includes a micro-positive pressure component and a drying component. The micro-positive pressure component includes a hollow top block 5, which is fixedly connected to the top wall of the cabinet 4. The two opposite side walls of the top block 5 are respectively penetrated and fixedly connected with three first tubes 13 and three third tubes 15. The first tubes 13 are commonly penetrated and fixedly connected with the left block 11, and the third tubes 15 are commonly penetrated and fixedly connected with the right block 12. The top wall of the left block 11 is penetrated and fixedly connected with multiple second tubes 14. The top block 5 and the cabinet 4 are commonly penetrated and rotatably connected with the rotating shaft 6. The top block 5 and the cabinet 4 are rotatably connected with the rotating shaft 6 through a bearing. The end of the rotating shaft 6 located outside the cabinet 4 is fixedly connected with a servo motor 7, and the servo motor 7 can accurately control its steering and rotation angle;

[0040] The drying component is composed of a moisture absorption component and a control component. The moisture absorption component includes a fixed ring 16, which is fixedly connected to the upper surface of the cabinet 4. The fixed ring 16 is rotatably connected to a rotating block 17 through a bearing. The control component includes a support block 21, which is fixedly connected to the upper surface of the cabinet 4. The rotating shaft 6 passes through the support block 21.

[0041] The cabinet body 4 is provided with a lifting mechanism, which includes a sliding sleeve 35 . The sliding sleeve 35 is fixedly connected to the lower surface of the cabinet body 4 .

[0042] The micro-positive pressure component also includes a driving block 8, which is rotatably connected to one end of the rotating shaft 6 located inside the top block 5 through a one-way bearing. The setting of the one-way bearing causes the driving block 8 to rotate when the rotating shaft 6 rotates clockwise, and does not drive the driving block 8 to rotate when it rotates counterclockwise. There are two pump blocks 9 sealed and slidably connected in the top block 5. A plurality of first springs 10 are fixedly connected between the pump block 9 and the inner wall of the top block 5. The top wall of the right side block 12 and the top wall of the cabinet 4 are jointly penetrated and fixedly connected with a fourth tube 19. The cross-section of the driving block 8 is rhombus-shaped. During the rotation process, the driving block 8 will continuously push the two pump blocks. 9, cooperates with the first spring 10, so that the pump plate 9 reciprocates, the servo motor 7 drives the rotating shaft 6 to rotate clockwise, and the rotating shaft 6 drives the driving block 8 to rotate. The driving block 8 rotates and cooperates with the first spring 10 to make the pump block 9 reciprocate. The reciprocating motion of the pump block 9 sucks in external air through the third tube 15, the right block 12, and the fourth tube 19, and then pumps the air into the cabinet 4 through the first tube 13, the left block 11, and the second tube 14, so that the cabinet 4 is always in a slightly positive pressure state, preventing external air from entering the cabinet 4 through the air hole 42, thereby achieving a moisture-proof effect to a certain extent.

[0043] The rotary block 17 is a hollow structure, and the moisture absorption component also includes multiple partitions 20. The number of partitions 20 can be freely changed. The embodiment shows the situation of four partitions 20, but this is not the only number of partitions 20 in this application. The partitions 20 are fixedly connected to the rotary block 17. The partitions 20 divide the rotary block 17 into four areas. The top wall and the bottom wall of the rotary block 17 are each provided with multiple through holes 18. The top wall and the bottom wall between the two partitions 20 are each provided with a through hole 18. The through hole 18 at the bottom can be aligned with the fourth tube 19, so that when the fourth tube 19 inhales, the inhaled air can pass through the rotary block 17. At the same time, a sealing rubber ring is provided between the rotary block 17 and the cabinet body 4 to prevent air from being sucked into the fourth tube 19 from the gap between the two. The rotary block 17 is filled with silica gel desiccant 27. The silica gel desiccant 27 can absorb moisture in the air, and as the adsorption amount increases, the silica gel desiccant 27 will expand significantly. After the silica gel desiccant 27 is heated, it can be desorbed.

[0044] The control component also includes a slide plate 22, which is slidably connected to the support block 21, and a plurality of second springs 23 are fixedly connected between the slide plate 22 and the support block 21. The side wall of the support block 21 close to the slide plate 22 is fixedly connected to a control switch 24, and the control switch 24 is connected to the servo motor 7 through a PLC control circuit. The PLC control circuit controls the servo motor 7 to rotate 90° counterclockwise after the control switch 24 is pressed (the rotation angle is not fixed and is determined by the number of partitions 20), and then returns to clockwise rotation. The control circuit is a prior art and is not described here. A fixed plate 31 is fixedly connected to the upper surface of the rotating block 17, and the rotating shaft 6 and the fixed plate 31 are rotatably connected through a one-way bearing. The setting of the one-way bearing makes it possible for the rotating shaft 6 to not drive the fixed plate 31 to rotate when rotating clockwise, but to drive the fixed plate 31 to rotate when rotating counterclockwise. A plurality of expansion ports 25 are provided on the side wall of the rotating block 17, and an expansion port is provided between every two partitions 20. The opening 25 is fixedly connected to an elastic cloth 26 in the expansion opening 25. As the moisture is continuously absorbed, the silica gel desiccant 27 will continue to expand and its volume will continue to increase. As the volume of the silica gel desiccant 27 increases, it will cause the elastic cloth 26 to bulge, causing the elastic cloth 26 to contact the slide plate 22 and push it to slide. When it expands to a certain extent, the elastic cloth 26 causes the slide plate 22 to contact the control switch 24. After the control switch 24 is pressed, the servo motor 7 rotates 90° counterclockwise, thereby no longer driving the drive block 8 to rotate. Instead, it drives the rotating block 17 to rotate 90° through the fixed plate 31, so that the silica gel desiccant 27 between the two partitions 20 of the next group is used for drying, and the silica gel desiccant 27 of the previously used group rotates away from above the fourth tube 19. The equipment will automatically monitor the adsorption situation when in use, and automatically replace the silica gel desiccant 27 for adsorption when it is full, which greatly improves the automation level of the equipment and ensures the timely replacement of the silica gel desiccant 27, thereby ensuring the moisture-proof effect.

[0045] A plurality of heating wires 30 are fixedly connected to the inner bottom wall of the rotating block 17, a conductive ring 29 is fixedly embedded in the inner side wall of the fixed ring 16, and a plurality of conductive blocks 28 are fixedly embedded in the side wall of the rotating block 17. The conductive blocks 28, the conductive rings 29 and the heating wires 30 are electrically connected through wires. A conductive block 28 is provided between every two partitions 20. The conductive block 28 and the heating wire 30 between the corresponding partitions 20 are connected through wires and then grounded, and the conductive rings 29 are connected to the positive pole of the power supply. When the conductive block 28 contacts the conductive ring 29, the heating wire 30 between the corresponding two partitions 20 can be energized and heated. The conductive block 28 corresponding to the silica gel desiccant 27 that rotates away will contact the conductive ring 29 during the rotation process, thereby energizing the corresponding heating wire 30, and heating the silica gel desiccant 27 after adsorbing moisture through the heating wire 30, so that the adsorbed moisture is desorbed for subsequent reuse, thereby realizing the reuse of the desiccant, eliminating the need for frequent replacement of the desiccant, and greatly reducing labor intensity.

[0046] The lifting mechanism also includes a slider 36, which is slidably connected to the sleeve 35. The cross-section of the slider 36 is T-shaped, which prevents it from detaching from the sleeve 35. The lower surface of the slider 36 is fixedly connected to a buoyancy block 37. The buoyancy block 37 is made of porous foam material and has a large buoyancy in water. The top wall of the sleeve 35 is fixedly connected to a button switch 38. The left block 11, the cabinet 4 and one of the side sleeves 3 are fixedly connected to the fifth tube 32, and the side wall of the other side sleeve 3 is fixedly connected to the seventh tube 34. The two side sleeves 3 are fixedly connected to the sixth tube 33. A first solenoid valve 39 is provided in the fifth tube 32, and a second solenoid valve 40 is provided in the second tube 14 and the seventh tube 34. The first solenoid valve 39 is a normally closed solenoid valve, which is opened by power, and the second solenoid valve 40 is a normally open solenoid valve, which is closed by power. The first solenoid valve 39, the second solenoid valve 40 and the button switch 38 are electrically connected through wires, and the button opens After the switch 38 is pressed, the first solenoid valve 39 and the second solenoid valve 40 are energized, and the button switch 38 has an IP68 level of waterproofness. On rainy days, when the rain is heavy, rainwater accumulates on the ground. As the rainwater accumulates, the water level continues to rise and gradually approaches the cabinet 4. At this time, the water surface will first contact the buoyancy block 37. Under the action of buoyancy, the buoyancy block 37 drives the slider 36 to rise. As the water level rises, the slider 36 will trigger the button switch 38. After the button switch 38 is pressed, the first solenoid valve 39 is energized to open, and the second solenoid valve 40 is energized to close. At this time, the air pumped into the left block 11 will no longer enter the cabinet 4 through the second pipe 14, but enter the two side sleeves 3 through the fifth pipe 32 and the sixth pipe 33, thereby causing the side sleeve 3 to slide up, driving the cabinet 4 to rise and away from the water surface, preventing rainwater from accumulating into the cabinet 4 through the air hole 42 and affecting the internal electronic components.

[0047] The top wall of the cabinet body 4 is fixedly connected to a ceiling 41 through a rod, the servo motor 7 is fixedly connected to the ceiling 41 , and a plurality of air holes 42 are opened on the side wall of the cabinet body 4 .

[0048] One-way valves are provided in the first tube 13 and the third tube 15. The one-way valve in the first tube 13 only allows air to enter the left block 11 from the top block 5, and the one-way valve in the third tube 15 only allows air to enter the top block 5 from the right block 12. The side walls of the pump block 9 and the drive block 8 are coated with grease. The coating of grease reduces the friction between the drive block 8 and the pump block 9, thereby reducing the friction loss between the two and greatly improving the life of the equipment.

[0049] A filter is provided in the through hole 18. The setting of the filter can prevent the silica gel desiccant 27 from leaking on the one hand, and prevent large external impurities from entering the rotating block 17 on the other hand. The top wall of the rotating block 17 is connected to a plurality of processing doors 43 by hinge rotation. Corresponding openings are provided at the processing doors 43. Through the setting of the processing doors 43, the internal silica gel desiccant 27 can be processed and replaced.

[0050] The rotating block 17 and the fixing ring 16 are both made of polytetrafluoroethylene, which has better strength and corrosion resistance and good insulation properties, thereby avoiding accidental conduction between the conductive block 28 and the conductive ring 29. The partition 20 is made of polyurethane, which has better heat insulation effect, preventing heat from dissipating to other desiccant places, and ensuring better desorption effect.

[0051] In the present invention, when the equipment is in operation, the servo motor 7 works accordingly, driving the rotating shaft 6 to rotate clockwise, and the rotating shaft 6 drives the driving block 8 to rotate. The rotation of the driving block 8 cooperates with the first spring 10 to make the pump block 9 reciprocate. The reciprocating motion of the pump block 9 sucks in external air through the third tube 15, the right block 12, and the fourth tube 19, and then pumps the air into the cabinet 4 through the first tube 13, the left block 11, and the second tube 14, so that the cabinet 4 is always in a slightly positive pressure state, preventing external air from entering the cabinet 4 through the air hole 42.

[0052] When the air is sucked in through the fourth tube 19, it will enter the rotating block 17 through the through hole 18 on the top wall of the rotating block 17, absorb moisture in the air through the silica gel desiccant 27 in the rotating block 17, and then enter the fourth tube 19 through the through hole 18 on the bottom wall of the rotating block 17, and then be pumped into the cabinet 4, thereby preventing the pumped air from containing high moisture. As the moisture is continuously absorbed, the silica gel desiccant 27 will continue to expand and its volume will continue to increase. As the volume of the silica gel desiccant 27 increases, it will cause the elastic cloth 26 to The bulge causes the elastic cloth 26 to contact the slide plate 22 and push it to slide. When it expands to a certain extent, the elastic cloth 26 causes the slide plate 22 to contact the control switch 24. After the control switch 24 is pressed, the servo motor 7 rotates 90° counterclockwise, and no longer drives the drive block 8 to rotate. Instead, it drives the rotating block 17 to rotate 90° through the fixed plate 31, so that the silica gel desiccant 27 between the two partitions 20 of the next group is used for drying, while the silica gel desiccant 27 of the previously used group rotates away from above the fourth tube 19.

[0053] The conductive block 28 corresponding to the rotating silica gel desiccant 27 will contact the conductive ring 29 during the rotation process, so that the corresponding heating wire 30 is energized, and the silica gel desiccant 27 after adsorbing moisture is heated by the heating wire 30, so that the adsorbed moisture is desorbed for subsequent reuse.

[0054] On rainy days, when the rain is heavy, rainwater accumulates on the ground. As the rainwater accumulates, the water level continues to rise and gradually approaches the cabinet 4. At this time, the water surface will first contact the buoyancy block 37. Under the action of buoyancy, the buoyancy block 37 drives the slider 36 to rise. As the water level rises, the slider 36 will trigger the button switch 38. After the button switch 38 is pressed, the first solenoid valve 39 will be energized to open, and the second solenoid valve 40 will be energized to close. At this time, the air pumped into the left block 11 will no longer enter the cabinet 4 through the second tube 14, but enter the two side sleeves 3 through the fifth tube 32 and the sixth tube 33, thereby causing the side sleeve 3 to slide up, driving the cabinet 4 to rise and away from the water surface.

[0055] When the rain stops or the rain is light and the accumulated water recedes, the slider 36 no longer triggers the button switch 38. At this time, the first solenoid valve 39 is continuously in the power-off closed state, and the second solenoid valve 40 is continuously in the power-off open state. Under the action of the cabinet body 4's own gravity, the air in the side cover 3 is discharged through the seventh tube 34, and the cabinet body 4 returns to its original position.

[0056] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. An outdoor low-voltage complete switchgear with moisture-proof function, comprising a base (1), characterized in that: The upper surface of the base (1) is fixedly connected to two columns (2), the columns (2) are sealingly and slidingly sleeved with side sleeves (3), and the side sleeves (3) are fixedly connected to the cabinet (4); The cabinet (4) is provided with a moisture-proof mechanism, which comprises a micro-positive pressure component and a drying component. The micro-positive pressure component comprises a hollow top block (5), the top block (5) is fixedly connected to the top wall of the cabinet (4), and two opposite side walls of the top block (5) are respectively penetrated and fixedly connected with three first tubes (13) and three third tubes (15), the first tubes (13) are commonly penetrated and fixedly connected with the left block (11), the third tubes (15) are commonly penetrated and fixedly connected with the right block (12), and the top wall of the left block (11) is penetrated and fixedly connected with a plurality of second tubes (14), the top block (5) and the cabinet (4) are commonly penetrated and rotatably connected with a rotating shaft (6), and one end of the rotating shaft (6) located outside the cabinet (4) is fixedly connected with a servo motor (7); The drying component is composed of a moisture absorption component and a control component. The moisture absorption component includes a fixed ring (16), the fixed ring (16) is fixedly connected to the upper surface of the cabinet (4), and the fixed ring (16) is rotatably connected to a rotating block (17) through a bearing. The control component includes a support block (21), and the support block (21) is fixedly connected to the upper surface of the cabinet (4). The cabinet (4) is provided with a lifting mechanism, which comprises a sliding sleeve (35), and the sliding sleeve (35) is fixedly connected to the lower surface of the cabinet (4).

2. The outdoor low-voltage complete switchgear with moisture-proof function according to claim 1, characterized in that: The micro-positive pressure component also includes a driving block (8), the driving block (8) and one end of the rotating shaft (6) located inside the top block (5) are rotatably connected through a one-way bearing, two pump blocks (9) are sealed and slidably connected inside the top block (5), a plurality of first springs (10) are fixedly connected between the pump block (9) and the inner wall of the top block (5), and a fourth tube (19) is fixedly connected to the top wall of the right side block (12) and the top wall of the cabinet (4).

3. The outdoor low-voltage complete switchgear with moisture-proof function according to claim 1, characterized in that: The rotating block (17) is a hollow structure. The moisture absorption component further comprises a plurality of partitions (20). The partitions (20) are fixedly connected in the rotating block (17). The top wall and the bottom wall of the rotating block (17) are both provided with a plurality of through holes (18). The rotating block (17) is filled with a silica gel desiccant (27).

4. The outdoor low-voltage complete switchgear with moisture-proof function according to claim 1, characterized in that: The control assembly further comprises a slide plate (22), the slide plate (22) and the support block (21) being slidably connected therethrough, a plurality of second springs (23) being fixedly connected between the slide plate (22) and the support block (21), a control switch (24) being fixedly connected to the side wall of the support block (21) close to the slide plate (22), the control switch (24) being connected to the servo motor (7) via a PLC control circuit, a fixed plate (31) being fixedly connected to the upper surface of the rotating block (17), the rotating shaft (6) and the fixed plate (31) being rotatably connected therethrough via a one-way bearing, a plurality of expansion openings (25) being opened on the side wall of the rotating block (17), and an elastic cloth (26) being fixedly connected inside the expansion opening (25).

5. The outdoor low-voltage complete switchgear with moisture-proof function according to claim 1, characterized in that: The inner bottom wall of the rotating block (17) is fixedly connected to a plurality of heating wires (30), the inner side wall of the fixing ring (16) is fixedly embedded with a conductive ring (29), and the side wall of the rotating block (17) is fixedly embedded with a plurality of conductive blocks (28), and the conductive blocks (28), the conductive rings (29) and the heating wires (30) are electrically connected via wires.

6. The outdoor low-voltage complete switchgear with moisture-proof function according to claim 1, characterized in that: The lifting mechanism further comprises a slider (36), the slider (36) being slidably connected to the sliding sleeve (35), a buoyancy block (37) being fixedly connected to the lower surface of the slider (36), a button switch (38) being fixedly connected to the inner top wall of the sliding sleeve (35), a fifth tube (32) being fixedly connected to the left side block (11), the cabinet (4) and one of the side sleeves (3), a seventh tube (34) being fixedly connected to the side wall of the other side sleeve (3), a sixth tube (33) being fixedly connected to the two side sleeves (3), a first solenoid valve (39) being provided in the fifth tube (32), a second solenoid valve (40) being provided in the second tube (14) and the seventh tube (34), and the first solenoid valve (39), the second solenoid valve (40) and the button switch (38) being electrically connected via a wire.

7. The outdoor low-voltage complete switchgear with moisture-proof function according to claim 1, characterized in that: The top wall of the cabinet (4) is fixedly connected to a ceiling (41) via a rod, the servo motor (7) is fixedly connected to the ceiling (41), and a plurality of air holes (42) are provided on the side wall of the cabinet (4).

8. The outdoor low-voltage complete switchgear with moisture-proof function according to claim 2, characterized in that: One-way valves are provided in the first tube (13) and the third tube (15), and the side walls of the pump block (9) and the drive block (8) are coated with grease.

9. The outdoor low-voltage complete switchgear with moisture-proof function according to claim 3, characterized in that: A filter screen is provided in the through hole (18), and a top wall of the rotating block (17) is rotatably connected to a plurality of processing doors (43) via hinges.

10. The outdoor low-voltage complete switchgear with moisture-proof function according to claim 3, characterized in that: The rotating block (17) and the fixing ring (16) are both made of polytetrafluoroethylene, and the partition (20) is made of polyurethane.

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