Box-type substation for wind power generation

Abstract

The invention discloses a box-type transformer substation for wind power generation, and relates to the technical field of box-type transformer substations for wind power generation, the box-type transformer substation for wind power generation comprises a box body, a supporting plate convenient to install is fixed on the upper surface of the box body, heat dissipation holes are formed in the side wall of the box body, and an installation frame is fixed on the upper surface of the inner wall of the box body. A motor is fixed to the upper surface of the mounting frame, a rotating shaft is fixed to the output end of the motor, fan blades are fixed to the outer wall of the rotating shaft, a ventilation opening is formed in the upper surface of the box body, the box body is provided with a shielding mechanism facilitating protection of the transformer substation in snowy days, and the shielding mechanism is provided with a snow removing mechanism facilitating cleaning of accumulated snow. And the shielding mechanism is provided with an auxiliary mechanism for conveniently shoveling ice columns. According to the box-type transformer substation for wind power generation, the heat dissipation holes can be blocked when snow falls into the transformer substation from the heat dissipation holes, so that accidents such as short circuit and the like caused by melting of the snow are avoided, and danger and loss are avoided.

Description

Technical Field

[0001] The invention relates to the technical field of box-type transformer substation for wind power generation, in particular to a box-type transformer substation for wind power generation. Background Art

[0002] In the traditional power generation model, substations are generally large, centralized building facilities. However, in wind power generation, wind farms are often located over vast areas and wind turbines are relatively dispersed. In order to better collect, convert and transmit wind power energy, box-type substations came into being.

[0003] Patent announcement number CN221597186U is a box-type substation for wind power generation, including a top cover and a box body, the top cover and the box body are welded as one, a cavity is formed between the top cover and the box body, a drive motor is fixedly installed in the middle of the cavity, a top wind wheel is fixedly installed on the output shaft of the drive motor, a transmission shaft is provided on both sides of the drive motor, the transmission shaft is rotatably connected to the top cover, the transmission shaft and the output shaft of the drive motor are connected through a linkage assembly, the lower end of the transmission shaft is movably connected to the drive assembly, a side wind assembly is provided below the drive assembly, and ventilation filters are provided on the left and right opposite sides of the box body. This application adopts a linkage mechanism to realize ventilation and heat dissipation of the substation, and dust on the ventilation filter can be cleaned, reducing the maintenance cost of the equipment, and is worthy of promotion and use.

[0004] However, in the above-mentioned box-type substation, the ventilation filter on the side can only filter and block dust to a limited extent. When it is rainy or snowy, rain and snow may flow along the outer wall of the box and enter the interior of the box, which cannot effectively protect the internal electrical equipment from the external environment and ensure the stable operation of the power system. Summary of the invention

[0005] In view of the deficiencies of the prior art, the present invention provides a box-type substation for wind power generation, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A box-type substation for wind power generation includes a box body, a support plate for convenient installation is fixed on the upper surface of the box body, a heat dissipation hole is opened on the side wall of the box body, a mounting frame is fixed on the upper surface of the inner wall of the box body, a motor is fixed on the upper surface of the mounting frame, a rotating shaft is fixed on the output end of the motor, a fan blade is fixed on the outer wall of the rotating shaft, a vent is opened on the upper surface of the box body, the box body is provided with a shielding mechanism for conveniently protecting the substation on snowy days, the shielding mechanism is provided with a snow removal mechanism for conveniently clearing snow, and the shielding mechanism is provided with an auxiliary mechanism for conveniently shoveling icicles;

[0007] Among them, the shielding mechanism includes a snow guard, a fixed block, a fixed rod, a first slider, a first sliding rod, a first gear, a first saw blade, a second saw blade, a first trapezoidal plate, a baffle, a second slider, a hinge block, a hinge rod, a driven rod and a cam. The snow guard is hinged to the side wall of the support plate, and a fixed block is fixed to the bottom surface of the snow guard, and a fixed rod is fixed between two groups of the fixed blocks.

[0008] According to the above technical solution, the fixed rod passes through the first slider and is slidably connected at the penetration point. The bottom end of the first slider is hinged with a first sliding rod. The first sliding rod passes through the upper surface of the box and is slidably connected at the penetration point. When the first slider moves, it drives the first sliding rod to slide. The end of the first sliding rod away from the first slider is rotated with a first gear. When the first sliding rod slides, it drives the first gear to move. A first saw blade is fixed to the side wall of the inner wall of the box. The first saw blade is meshed with the first gear. When the first gear moves, it is affected by the first saw blade and rotates.

[0009] According to the above technical solution, a second saw blade is slidingly arranged on the side wall of the inner wall of the box, and the second saw blade is meshed with the side of the first gear away from the first saw blade. When the first gear rotates, it drives the second saw blade to slide. A first trapezoidal plate is fixed to the bottom surface of the second saw blade, and when the second saw blade slides, it drives the first trapezoidal plate to move. A baffle is slidingly arranged on the side wall of the inner wall of the box, and the rounded corner of the baffle is fitted with the beveled edge of the first trapezoidal plate. When the first trapezoidal plate moves, it drives the baffle to slide to block the heat dissipation holes.

[0010] According to the above technical solution, the fixed rod passes through the second slider and is slidably connected at the penetration point. The bottom surface of the second slider is hinged with a hinge block. When the second sliding block moves, it drives the hinge block to move. The hinge block rotates while moving. The end of the hinge block away from the second slider is hinged with a hinge rod. When the hinge block rotates, it drives the hinge rod to rotate. The end of the hinge rod away from the hinge block is hinged with a driven rod. The driven rod passes through the vent and is slidably connected at the penetration point. When the hinge rod rotates, it pushes the driven rod to slide. The rotating shaft passes through the cam and is fixedly connected at the penetration point. When the cam rotates, it pushes the driven rod to slide in the opposite direction, thereby driving the driven rod to reciprocate.

[0011] According to the above technical solution, the snow removal mechanism includes a third slider, a second sliding rod, a second gear, a threaded groove, a protrusion, a first snow-clearing rod, a second snow-clearing rod, a saw plate, a mounting tube, a rotating rod and a movable plate. The bottom surface of the third slider is slidably connected to the side wall of the support plate. The upper end of the third slider is hinged with a second sliding rod. The second sliding rod passes through the snow guard and is slidably connected at the penetration point. When the snow guard rotates repeatedly, the second sliding rod slides repeatedly relative to the snow guard. The second sliding rod passes through the second gear and is slidably connected at the penetration point.

[0012] According to the above technical solution, a thread groove is provided on the outer wall of the second sliding rod, and a protrusion is fixed on the inner wall of the second gear, and the outer wall of the protrusion is slidably connected to the inner wall of the thread groove. When the second sliding rod slides, the protrusion slides in the thread groove, driving the second gear to rotate, and a first snow-clearing rod is slidably provided on the upper surface of the snow guard, and a sawtooth is fixed on the upper surface of the first snow-clearing rod, and the sawtooth of the first snow-clearing rod is meshed with the second gear. A second snow-clearing rod is slidably provided on the upper surface of the snow guard, and a sawtooth is fixed on the bottom surface of the second snow-clearing rod, and the sawtooth of the second snow-clearing rod is meshed with a side of the second gear away from the first snow-clearing rod. When the second gear rotates, it drives the first snow-clearing rod and the second snow-clearing rod to slide left and right.

[0013] According to the above technical solution, saw plates are fixed to the side walls of the first snow-clearing rod and the second snow-clearing rod, and the saw plates are driven to slide when the two sets of snow-clearing rods slide; a mounting tube is fixed to the side wall of the snow guard, and a rotating rod passes through the mounting tube; gear teeth are fixed to the outer wall of the middle part of the rotating rod, and the saw plates are meshed with the gear teeth of the rotating rod, and the saw plates drive the rotating rod to rotate when the saw plates slide; a movable plate is fixed to the outer wall of the rotating rod, and the movable plate is driven to swing when the rotating rod rotates.

[0014] According to the above technical scheme, the auxiliary mechanism includes a groove, a spring, a second trapezoidal plate and a shovel head. The groove is opened on the bottom surface of the snow guard, the inner wall of the groove is fixedly connected to one end of the spring, and the other end of the spring is fixed with the second trapezoidal plate. When the movable plate swings inward, it pushes the second trapezoidal plate to slide, and the second trapezoidal plate compresses the spring when it slides. When the movable plate swings outward, the second trapezoidal plate is reset by the elastic force of the spring. A shovel head slides on the bottom surface of the snow guard, and the side wall of the shovel head is slidably connected to the hypotenuse of the second trapezoidal plate. When the second trapezoidal plate slides, it drives the shovel head to slide.

[0015] The present invention provides a box-type substation for wind power generation, which has the following beneficial effects:

[0016] 1. The present invention protects the substation by arranging a snow guard above the substation to block rain and snow. When heavy snow falls, snow will accumulate above the snow guard. The weight of the accumulated snow cooperates with the first slider and the first sliding rod to push the first gear downward, and the first gear then cooperates with the first saw blade to drive the second saw blade to slide downward. When the second saw blade slides downward, it drives the first trapezoidal plate to push the baffle to block the heat dissipation hole, so as to prevent heavy snow from falling into the substation from the heat dissipation hole, and causing accidents such as short circuit after melting, causing danger and loss; the snow guard cooperates with the second slider, the hinge block and the hinge rod to push the driven rod to slide, and then the motor drives the cam to rotate continuously, pushing the driven rod to do reciprocating motion, driving the snow guard to shake, reducing the thickness of the accumulated snow, and at the same time preventing the snow guard from being at the same angle for a long time, affecting the shielding effect.

[0017] 2. The present invention drives the two sets of snow-clearing rods to slide left and right through the cooperation between the second sliding rod and the second gear, so as to clear the snow on the snow guard board, thereby preventing the snow from remaining on the snow guard board for too long. When the snow begins to melt, the snow guard board is easily frozen, causing damage to the snow guard board and reducing the service life of the snow guard board. When sweeping snow to both sides, the snow-clearing rod drives the saw board to slide, and the rotating rod drives the movable board to retract, thereby preventing the swept snow from falling from the side to the top of the box body and falling into the vents to cause damage to the inside of the substation.

[0018] 3. The present invention drives the second trapezoidal plate to slide by the rotation of the movable plate, and then drives the shovel head to slide outward. With the elastic force of the spring, the shovel head can repeatedly perform this action. When the snow begins to melt, the bottom surface of the snow guard may freeze to form icicles. The shovel head can remove the icicles to avoid deformation, damage or even falling of the snow guard, thereby reducing the burden on the snow guard. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the device of the present invention;

[0020] Figure 2 It is a schematic diagram of a part of the device of the present invention;

[0021] Figure 3 It is a schematic diagram of the full cross-section structure of the present invention;

[0022] Figure 4 For the present invention Figure 3 A schematic diagram of the local enlarged structure of area A;

[0023] Figure 5 This is a schematic diagram of the bottom structure of the snow guard of the present invention;

[0024] Figure 6 This is a schematic diagram of the upper surface structure of the snow guard of the present invention;

[0025] Figure 7 This is a schematic diagram of a half-section structure of the second gear of the present invention;

[0026] Figure 8 It is a schematic diagram of the full cross-section structure of the rotating rod of the present invention.

[0027] In the figure: 1, box; 2, heat dissipation hole; 3, mounting frame; 4, motor; 5, rotating shaft; 6, fan blade; 7, vent; 8, shielding mechanism; 81, snow guard; 82, fixing block; 83, fixing rod; 84, first slider; 85, first sliding rod; 86, first gear; 87, first saw blade; 88, second saw blade; 89, first trapezoidal plate; 810, baffle; 811, second slider; 812, hinge block; 813, hinge Connecting rod; 814, driven rod; 815, cam; 9, snow removal mechanism; 91, third sliding block; 92, second sliding rod; 93, second gear; 94, threaded groove; 95, bump; 96, first snow-clearing rod; 97, second snow-clearing rod; 98, saw plate; 99, mounting tube; 910, rotating rod; 911, movable plate; 10, auxiliary mechanism; 101, groove; 102, spring; 103, second trapezoidal plate; 104, shovel head. 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.

[0029] See also Figure 1-Figure 8 An embodiment of the present invention is as follows: a box-type substation for wind power generation includes a box body 1, a support plate for convenient installation is fixed on the upper surface of the box body 1, and a heat dissipation hole 2 is opened on the side wall of the box body 1. In normal weather, the box-type substation for wind power generation performs auxiliary heat dissipation through the heat dissipation hole 2, a mounting frame 3 is fixed on the upper surface of the inner wall of the box body 1, a motor 4 is fixed on the upper surface of the mounting frame 3, a rotating shaft 5 is fixed on the output end of the motor 4, and a fan blade 6 is fixed on the outer wall of the rotating shaft 5. The motor 4 is always in a starting state, driving the rotating shaft 5 to rotate, and the rotating shaft 5 drives the fan blade 6 to rotate. Active heat dissipation is performed by arranging the motor 4, the rotating shaft 5 and the fan blade 6 on the top of the box-type substation for wind power generation. The fan blade 6 rotates all the time to accelerate the air flow speed. A vent 7 is opened on the upper surface of the box body 1, and the internal and external air is exchanged through the vent 7 to dissipate heat and cool down the inside of the substation. The box body 1 is provided with a shielding mechanism 8 for conveniently protecting the substation on snowy days.

[0030] Among them, the shielding mechanism 8 includes a snow guard 81, a fixed block 82, a fixed rod 83, a first slider 84, a first sliding rod 85, a first gear 86, a first saw blade 87, a second saw blade 88, a first trapezoidal plate 89, a baffle 810, a second slider 811, a hinge block 812, a hinge rod 813, a driven rod 814 and a cam 815. The snow guard 81 is hinged to the side wall of the support plate. When encountering heavy snow weather, a layer of snow will quickly form on the snow guard 81. At this time, the snow guard 81 is subjected to the pressure formed by the weight of the snow and rotates downward around the hinge between the snow guard 81 and the support plate. A fixed block 82 is fixed to the bottom surface of the snow guard 81, and a fixed rod 83 is fixed between the two sets of fixed blocks 82. The fixed rod 83 passes through the first slider 84 and is slidably connected at the penetration point. When the snowboard 81 rotates downward, the first slider 84 is driven to move downward. The bottom end of the first slider 84 is hinged with a first sliding rod 85, which penetrates the upper surface of the box body 1 and is slidably connected. When the first slider 84 moves downward, it drives the first sliding rod 85 to slide downward. Since the position of the first sliding rod 85 in the horizontal direction does not change, the first slider 84 slides along the fixed rod 83 while moving downward. The end of the first sliding rod 85 away from the first slider 84 is rotated with a first gear 86. When the first sliding rod 85 slides downward, it drives the first gear 86 to move downward. A first saw blade 87 is fixed to the side wall of the inner wall of the box body 1. The first saw blade 87 is meshed with the first gear 86. When the first gear 86 moves downward, it is affected by the first saw blade 87 to move The second saw blade 88 is rotated, and the side wall of the inner wall of the box body 1 slides with a second saw blade 88. The second saw blade 88 is meshed with the side of the first gear 86 away from the first saw blade 87. When the first gear 86 rotates, it drives the second saw blade 88 to slide downward. The first gear 86 itself is also moving downward, so the downward sliding distance of the second saw blade 88 is longer than that of the first gear 86. A first trapezoidal plate 89 is fixed to the bottom surface of the second saw blade 88. When the second saw blade 88 slides downward, it drives the first trapezoidal plate 89 to move downward. A baffle 810 is slidably provided on the side wall of the inner wall of the box body 1. The rounded corner of the baffle 810 fits the bevel of the first trapezoidal plate 89. When the first trapezoidal plate 89 moves downward, it pushes the baffle 810 to slide toward the center to block the heat dissipation hole 2. The fixing rod 83 passes through the second slider 811, and the penetration The sliding connection, the snow guard 81 rotates downward and drives the second slider 811 to move downward. The bottom surface of the second slider 811 is hinged with a hinge block 812. When the second slider 811 moves downward, it drives the hinge block 812 to move downward. Since the distance between the hinge block 812 and the box body 1 becomes smaller, the hinge block 812 rotates while moving downward. The end of the hinge block 812 away from the second slider 811 is hinged with a hinge rod 813. The rotation of the hinge block 812 drives the hinge rod 813 to rotate. The end of the hinge rod 813 away from the hinge block 812 is hinged with a driven rod 814. The driven rod 814 passes through the vent 7 and is slidably connected at the penetration point. The rotation of the hinge rod 813 drives the driven rod 814 to slide toward the center. The rotating shaft 5 passes through the cam 815 and is fixedly connected at the penetration point.Since the motor 4 is always in the starting state and drives the rotating shaft 5 to rotate, the cam 815 is always rotating under the drive of the rotating shaft 5. After the driven rod 814 slides toward the center, when the cam 815 rotates to contact the driven rod 814, it will push the driven rod 814 away from the center. The driven rod 814 slides and drives the hinged rod 813 to rotate in the opposite direction, lifting the snow guard 81. When there is snow on the snow guard 81, it will rotate downward again and push the driven rod 814 back. Therefore, in the case of snow accumulation, the motor 4 continues to run, which will drive the snow guard 81 to continue to shake. The shielding mechanism 8 protects the substation by arranging the snow guard 81 above the substation to block rain and snow. When the snow is heavy, snow will accumulate above the snow guard 81. The weight of the snow, in cooperation with the first slider 84 and the first sliding rod 85, pushes the first gear 86 downward, and the first gear 86 then drives the second saw blade 88 to slide downward by cooperating with the first saw blade 87. When the second saw blade 88 slides downward, it drives the first trapezoidal plate 89 to push the baffle 810 to block the heat dissipation hole 2, so as to prevent heavy snow from falling into the substation from the heat dissipation hole 2, and causing accidents such as short circuit after melting, causing danger and loss; the snow guard 81 drives the driven rod 814 to slide by cooperating with the second slider 811, the hinge block 812 and the hinge rod 813, and then drives the cam 815 to rotate continuously through the motor 4, pushing the driven rod 814 to do reciprocating motion, driving the snow guard 81 to shake, reducing the thickness of the snow, and at the same time preventing the snow guard 81 from being at the same angle for a long time, affecting the shielding effect.

[0031] When the present embodiment is working: when encountering heavy snow weather, a layer of snow will quickly form on the snow guard 81. At this time, the snow guard 81 is subjected to the pressure formed by the weight of the snow and rotates downward around the hinge between the snow guard 81 and the support plate. When the snow guard 81 rotates downward, it drives the first slider 84 to move downward. When the first slider 84 moves downward, it drives the first sliding rod 85 to slide downward. Since the position of the first sliding rod 85 in the horizontal direction remains unchanged, the first slider 84 slides along the fixed rod 83 while moving downward. When the first sliding rod 85 slides downward, it drives the first gear 86 to move downward. Since the first gear 86 is meshed with the first saw blade 87 and the second saw blade 88 at the same time, the first gear 86 is affected by the first saw blade 87 to rotate when it moves downward. When the first gear 86 rotates, it drives the second saw blade 88 to slide downward. When the second saw blade 88 slides downward, it drives the first trapezoidal plate 89 to move downward. When the first trapezoidal plate 89 moves downward, it pushes the baffle 810 to slide toward the center to block the heat dissipation. Hole 2, the snow guard 81 rotates downward and drives the second slider 811 to move downward. When the second slider 811 moves downward, it drives the hinge block 812 to move downward. Since the distance between the hinge block 812 and the box body 1 becomes smaller, the hinge block 812 rotates while moving downward. The hinge block 812 rotates and drives the hinge rod 813 to rotate. The hinge rod 813 rotates and drives the driven rod 814 to slide toward the center. Since the motor 4 is always in the starting state and drives the rotating shaft 5 to rotate, the cam 815 It keeps rotating driven by the rotating shaft 5. After the driven rod 814 slides toward the center, when the cam 815 rotates to contact the driven rod 814, it will push the driven rod 814 away from the center. The driven rod 814 slides and pushes the hinged rod 813 to rotate in the opposite direction, lifting the snow guard 81. If there is snow on the snow guard 81, it will rotate downward again and push the driven rod 814 back. Therefore, when there is snow, the motor 4 keeps running, which will drive the snow guard 81 to shake continuously.

[0032] See also Figure 1-Figure 8 On the basis of the above-mentioned embodiment, in another embodiment of the present invention, the shielding mechanism 8 is provided with a snow removal mechanism 9 for conveniently clearing the accumulated snow, and the shielding mechanism 8 is provided with an auxiliary mechanism 10 for conveniently removing icicles.

[0033] Among them, the snow removal mechanism 9 includes a third slider 91, a second sliding rod 92, a second gear 93, a threaded groove 94, a protrusion 95, a first snow-clearing rod 96, a second snow-clearing rod 97, a saw plate 98, a mounting tube 99, a rotating rod 910 and a movable plate 911. The bottom surface of the third slider 91 is slidably connected to the side wall of the support plate. The upper end of the third slider 91 is hinged with the second sliding rod 92. The second sliding rod 92 passes through the snow guard 81 and is slidably connected at the penetration point. When the snow guard 81 rotates, the angle formed by the support plate changes, and the distance between the second sliding rod 92 and the snow guard 81 is also constantly changing. The second sliding rod 92 passes through the second gear 93 and is slidably connected at the penetration point. A thread groove 94 is provided on the outer wall of the second sliding rod 92, and a protrusion 95 is fixed on the inner wall of the second gear 93. The outer wall of the protrusion 95 and the inner wall of the thread groove 94 are slidably connected. When the second sliding rod 92 slides up and down relative to the snow guard 81, the protrusion 95 fitted with the thread groove 94 slides along the thread groove 94, driving the second gear 93 to rotate. A first snow-clearing rod 96 slides on the upper surface of the snow guard 81, and a sawtooth is fixed on the upper surface of the first snow-clearing rod 96. The sawtooth of the first snow-clearing rod 96 meshes with the second gear 93. A second snow-clearing rod 97 slides on the upper surface of the snow guard 81, and a sawtooth is fixed on the bottom surface of the second snow-clearing rod 97. The sawtooth of the second snow-clearing rod 97 and the second sawtooth are meshed. The wheel 93 is meshed with a side away from the first snow-clearing rod 96. When the second gear 93 rotates, it drives the first snow-clearing rod 96 and the second snow-clearing rod 97 to move relative to each other, pushing the accumulated snow to both sides. The side walls of the first snow-clearing rod 96 and the second snow-clearing rod 97 are fixed with saw plates 98. When the first snow-clearing rod 96 and the second snow-clearing rod 97 move relative to each other, the saw plates 98 are driven to slide. A mounting tube 99 is fixed to the side wall of the snow guard 81. A rotating rod 910 runs through the mounting tube 99. A gear tooth is fixed to the outer wall of the middle part of the rotating rod 910. The gear tooth part of the saw plate 98 and the rotating rod 910 are meshed. When the saw plate 98 slides, the rotating rod 910 is driven to rotate. The outer wall of the rotating rod 910 is fixed with a movable plate 9 11. When the rotating rod 910 rotates, it drives the movable plate 911 to be retracted or opened. The snow removal mechanism 9 drives the two sets of snow-clearing rods to slide left and right through the cooperation between the second sliding rod 92 and the second gear 93, so as to clear the snow on the snow guard 81, so as to prevent the snow from remaining on the snow guard 81 for too long. When the snow begins to melt, it is easy to freeze the snow guard 81, causing damage to the snow guard 81 and reducing the service life of the snow guard 81. When sweeping snow to both sides, the saw plate 98 is driven to slide by the snow-clearing rod, and the movable plate 911 is driven to be retracted in cooperation with the rotating rod 910, so as to prevent the swept snow from falling from the side to the top of the box body 1 and falling into the vent 7 to cause damage to the inside of the substation.

[0034] In addition, the auxiliary mechanism 10 includes a groove 101, a spring 102, a second trapezoidal plate 103 and a shovel head 104. The groove 101 is provided on the bottom surface of the snow guard 81. The inner wall of the groove 101 is fixedly connected to one end of the spring 102. The second trapezoidal plate 103 is fixed to the other end of the spring 102. When the movable plate 911 is retracted, the second trapezoidal plate 103 is pushed to slide toward the center of the snow guard 81. When the second trapezoidal plate 103 slides, the spring 102 is compressed. A shovel head 104 slides on the bottom surface of the snow guard 81. The side wall of the shovel head 104 is slidably connected to the hypotenuse of the second trapezoidal plate 103. When the second trapezoidal plate 103 slides toward the center, it pushes the shovel head 104 to slide outward. When the movable plate 911 When opened, the second trapezoidal plate 103 is no longer subject to the thrust of the movable plate 911, but is subject to the elastic force of the spring 102. When the second trapezoidal plate 103 is subject to the elastic force of the spring 102, it slides in the direction away from the center of the snow guard 81, driving the shovel head 104 to slide inward and retract. The auxiliary mechanism 10 pushes the second trapezoidal plate 103 to slide through the rotation of the movable plate 911, and then pushes the shovel head 104 to slide outward. With the elastic force of the spring 102, the shovel head 104 can repeatedly perform this action. When the accumulated snow begins to melt, the bottom surface of the snow guard 81 may freeze to form icicles. The shovel head 104 can shovel away the icicles to avoid deformation, damage or even falling off of the snow guard 81, thereby reducing the burden on the snow guard 81.

[0035] When the present embodiment is working, the angle formed between the snow guard 81 and the support plate changes when the snow guard 81 rotates, and the distance between the second sliding rod 92 and the snow guard 81 also keeps changing. When the snow guard 81 rotates downward, the second sliding rod 92 slides upward relative to the snow guard 81. When the second sliding rod 92 slides upward, the protrusion 95 fitted with the thread groove 94 slides along the thread groove 94, driving the second gear 93 to rotate clockwise. When the second gear 93 rotates clockwise, it drives the first snow-clearing rod 96 and the second snow-clearing rod 97 away from each other, pushing the accumulated snow to both sides. When the snow guard 81 rotates upward, the second sliding rod 92 slides downward relative to the snow guard 81. When the second sliding rod 92 slides downward, the protrusion 95 fitted with the thread groove 94 slides along the thread groove 94, driving the second gear 93 to rotate clockwise. When the first snow-clearing rod 96 and the second snow-clearing rod 97 are moved away from each other, the saw plate 98 is driven to slide in the direction away from the center of the snow guard 81. When the saw plate 98 slides in the direction away from the center of the snow guard 81, the rotating rod 910 is driven to rotate. When the rotating rod 910 rotates, the movable plate 911 is driven to rotate and retract in the vertical direction. When the first snow-clearing rod 96 and the second snow-clearing rod 97 are moved towards each other, the saw plate 98 is driven to slide in the direction of the center of the snow guard 81. When the saw plate 98 slides in the direction of the center of the snow guard 81, the rotating rod 910 is driven to rotate in the opposite direction. The rotating rod 910 rotates in the opposite direction to drive the movable plate 911 to open.

[0036] When the movable plate 911 is folded, the second trapezoidal plate 103 is pushed to slide toward the center of the snow guard 81. The second trapezoidal plate 103 compresses the spring 102 when sliding. The second trapezoidal plate 103 pushes the shovel head 104 to slide outward when sliding toward the center. When the movable plate 911 is opened, the second trapezoidal plate 103 is no longer pushed by the movable plate 911, but is affected by the elastic force of the spring 102. When the second trapezoidal plate 103 is affected by the elastic force of the spring 102, it slides in the direction away from the center of the snow guard 81, driving the shovel head 104 to slide inward and fold.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A box-type substation for wind power generation, comprising a box body (1), characterized in that: A support plate for easy installation is fixed on the upper surface of the box (1); a heat dissipation hole (2) is provided on the side wall of the box (1); a mounting frame (3) is fixed on the upper surface of the inner wall of the box (1); a motor (4) is fixed on the upper surface of the mounting frame (3); a rotating shaft (5) is fixed to the output end of the motor (4); a fan blade (6) is fixed to the outer wall of the rotating shaft (5); a vent (7) is provided on the upper surface of the box (1); the box (1) is provided with a shielding mechanism (8) for conveniently protecting the substation on snowy days; the shielding mechanism (8) is provided with a snow removal mechanism (9) for conveniently clearing accumulated snow; and the shielding mechanism (8) is provided with an auxiliary mechanism (10) for conveniently removing icicles; The shielding mechanism (8) comprises a snow guard (81), a fixing block (82), a fixing rod (83), a first slider (84), a first sliding rod (85), a first gear (86), a first saw blade (87), a second saw blade (88), a first trapezoidal plate (89), a baffle (810), a second slider (811), a hinge block (812), a hinge rod (813), a driven rod (814) and a cam (815); the snow guard (81) is hinged to the side wall of the support plate; a fixing block (82) is fixed to the bottom surface of the snow guard (81); and a fixing rod (83) is fixed between two groups of the fixing blocks (82).

2. A box-type substation for wind power generation according to claim 1, characterized in that: The fixed rod (83) passes through the first slider (84) and is slidably connected at the penetration point. The bottom end of the first slider (84) is hinged with a first sliding rod (85). The first sliding rod (85) passes through the upper surface of the box body (1) and is slidably connected at the penetration point. The end of the first sliding rod (85) away from the first slider (84) is rotatably provided with a first gear (86). A first saw blade (87) is fixed to the side wall of the inner wall of the box body (1), and the first saw blade (87) is meshed with the first gear (86).

3. A box-type substation for wind power generation according to claim 2, characterized in that: A second saw blade (88) is slidably mounted on the side wall of the inner wall of the box body (1), the second saw blade (88) is meshed with a side of the first gear (86) away from the first saw blade (87), a first trapezoidal plate (89) is fixed to the bottom surface of the second saw blade (88), and a baffle (810) is slidably mounted on the side wall of the inner wall of the box body (1), the rounded corner of the baffle (810) is in contact with the bevel of the first trapezoidal plate (89).

4. A box-type substation for wind power generation according to claim 3, characterized in that: The fixed rod (83) passes through the second slider (811) and is slidably connected at the penetration point; the bottom surface of the second slider (811) is hinged with a hinge block (812); one end of the hinge block (812) away from the second slider (811) is hinged with a hinge rod (813); one end of the hinge rod (813) away from the hinge block (812) is hinged with a driven rod (814); the driven rod (814) passes through the vent (7) and is slidably connected at the penetration point; the rotating shaft (5) passes through the cam (815) and is fixedly connected at the penetration point.

5. A box-type substation for wind power generation according to claim 4, characterized in that: The snow removal mechanism (9) comprises a third slider (91), a second sliding rod (92), a second gear (93), a threaded groove (94), a protrusion (95), a first snow-clearing rod (96), a second snow-clearing rod (97), a saw plate (98), a mounting tube (99), a rotating rod (910) and a movable plate (911); the bottom surface of the third slider (91) is slidably connected to the side wall of the support plate; the upper end of the third slider (91) is hinged with the second sliding rod (92); the second sliding rod (92) passes through the snow guard (81) and is slidably connected at the penetration point; the second sliding rod (92) passes through the second gear (93) and is slidably connected at the penetration point.

6. A box-type substation for wind power generation according to claim 5, characterized in that: The outer wall of the second sliding rod (92) is provided with a thread groove (94), the inner wall of the second gear (93) is fixed with a protrusion (95), the outer wall of the protrusion (95) and the inner wall of the thread groove (94) are slidably connected, a first snow-clearing rod (96) is slidably mounted on the upper surface of the snow shield (81), a sawtooth is fixedly mounted on the upper surface of the first snow-clearing rod (96), the sawtooth of the first snow-clearing rod (96) is meshed with the second gear (93), a second snow-clearing rod (97) is slidably mounted on the upper surface of the snow shield (81), a sawtooth is fixedly mounted on the bottom surface of the second snow-clearing rod (97), the sawtooth of the second snow-clearing rod (97) is meshed with a side of the second gear (93) away from the first snow-clearing rod (96).

7. A box-type substation for wind power generation according to claim 6, characterized in that: A saw plate (98) is fixed to the side walls of the first snow-clearing rod (96) and the second snow-clearing rod (97), a mounting tube (99) is fixed to the side wall of the snow shield (81), a rotating rod (910) passes through the mounting tube (99), a gear is fixed to the outer wall of the middle part of the rotating rod (910), the saw plate (98) and the gear part of the rotating rod (910) are meshed, and a movable plate (911) is fixed to the outer wall of the rotating rod (910).

8. A box-type substation for wind power generation according to claim 7, characterized in that: The auxiliary mechanism (10) comprises a groove (101), a spring (102), a second trapezoidal plate (103) and a shovel head (104); the groove (101) is provided on the bottom surface of the snow guard (81); the inner wall of the groove (101) is fixedly connected to one end of the spring (102); the second trapezoidal plate (103) is fixed to the other end of the spring (102); the shovel head (104) is slidably provided on the bottom surface of the snow guard (81); the side wall of the shovel head (104) is slidably connected to the hypotenuse of the second trapezoidal plate (103).

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