A wind-sand erosion prevention power transmission outdoor equipment protection structure

Abstract

The utility model discloses a kind of wind-sand erosion-preventing power transmission and transformation outdoor equipment protection structures, including transformer box and protective cover, two the protective cover is respectively connected at the air vent of transformer box two sides, installation box is connected in the inner bottom of the protective cover, multiple springs are fixed with interval in the installation box, spring upper end is fixed with intermediate plate, intermediate plate is located in the installation box and slides up and down, the upper end of intermediate plate is fixed with filter screen plate;The wind-sand erosion-preventing power transmission and transformation outdoor equipment protection structure is through setting installation box, spring, filter screen plate, arc plate, rotating lever and cam and other components, realize the automatic cleaning function to filter screen plate, when cam rotates and presses arc plate, drive filter screen plate to overcome spring elasticity and vibrate up and down, shake off dust, reduce filter screen plate blockage, maintain good ventilation effect, reduce wind-sand to the erosion of electrical components in transformer box, guarantee equipment stable operation.

Description

Technical Field

[0001] This invention relates to the field of power transmission and transformation protection equipment technology, specifically a protective structure for outdoor power transmission and transformation equipment to prevent wind and sand erosion. Background Technology

[0002] In power transmission and transformation projects, outdoor equipment often faces the severe challenge of wind and sand erosion. Wind and sand can not only wear down the outer shell of the equipment, affecting its appearance and protective performance, but may also enter the equipment and damage electrical components, thereby affecting the normal operation of the equipment, increasing the risk of equipment failure and maintenance costs.

[0003] Some existing protective structures for outdoor power transmission and transformation equipment filter the air entering the transformer box by installing filters at the ventilation openings to block impurities such as sand and dust. However, due to the lack of an automatic cleaning mechanism for the filters, the single filters are prone to clogging in windy and sandy environments. Once the filters are clogged, the ventilation effect of the transformer box will be affected, which will easily lead to the inability to dissipate heat in the transformer box in time and accelerate the aging of electrical components. Therefore, it is necessary to design a protective structure for outdoor power transmission and transformation equipment that is resistant to wind and sand erosion to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a protective structure for outdoor power transmission and transformation equipment that is resistant to wind and sand erosion, so as to solve the problems mentioned in the background art.

[0005] The technical solution adopted by this application to solve its technical problem is: a protective structure for outdoor power transmission and transformation equipment against wind and sand erosion, including a transformer box and a protective cover. Two protective covers are respectively connected to the ventilation openings on both sides of the transformer box. An installation box is connected to the bottom of the protective cover. Multiple springs are fixed at intervals in the installation box. A middle plate is fixed to the upper end of each spring. The middle plate slides up and down in the installation box. A filter screen is fixed to the upper end of the middle plate. The filter screen is located inside the protective cover and is inclined in a direction away from the transformer box with the bottom of the protective cover as the axis. A connecting plate is fixed to the upper end of the filter screen. The connecting plate extends to the outside of the protective cover and is fixed with an arc plate.

[0006] The transformer box has rotating rods on both sides that are driven by a power source. Multiple cams are fixed at intervals on the rotating rods. The cams are located at the upper end of the arc plate and are adapted to press down the arc plate by rotating the cams.

[0007] Furthermore, the spring is adapted to maintain the filter plate in an upward motion tendency.

[0008] Furthermore, the bottom of the protective cover is provided with a mounting groove, and the mounting box is fixed in the mounting groove.

[0009] Furthermore, the protective cover is provided with limiting grooves on both sides. The limiting grooves are inclined in the direction away from the end of the transformer box with the bottom of the protective cover as the axis. The filter screen slides in the limiting grooves.

[0010] Furthermore, the bottom of the protective cover is provided with a dust discharge groove, which is suitable for discharging the dust shaken off by the filter screen from outside the protective cover.

[0011] Furthermore, a rainproof grille is fixed to the end of the protective cover away from the transformer box.

[0012] Furthermore, one end of the transformer box is hinged to an inspection door.

[0013] Furthermore, servo motors are installed on both sides of the transformer box, and the output end of the servo motor is connected to the rotating rod.

[0014] By adopting the above technical solution, the problem of existing equipment being inconvenient for automatic cleaning of the filter screen has been solved.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: This wind and sand erosion-resistant outdoor power transmission and transformation equipment protection structure, by setting up components such as mounting boxes, springs, filter screens, arc plates, rotating rods, and cams, realizes the automatic cleaning function of the filter screens. When the cam rotates and presses down on the arc plate, it drives the filter screens to vibrate up and down against the spring force, shaking off dust, reducing filter screen blockage, maintaining good ventilation, reducing wind and sand erosion of electrical components inside the substation box, and ensuring stable equipment operation. Attached Figure Description

[0016] Figure 1 is a first three-dimensional structural schematic diagram of a wind and sand erosion-resistant outdoor equipment protection structure for power transmission and transformation according to an embodiment of this application;

[0017] Figure 2 is a second three-dimensional structural schematic diagram of a wind and sand erosion-resistant outdoor power transmission and transformation equipment protection structure according to an embodiment of this application;

[0018] Figure 3 is a three-dimensional structural schematic diagram of the protective cover according to an embodiment of this application;

[0019] Figure 4 is a partial three-dimensional structural schematic diagram according to an embodiment of this application;

[0020] Figure 5 is a three-dimensional structural diagram of the mounting box, filter plate, connecting plate and arc plate according to an embodiment of this application;

[0021] Figure 6 is an enlarged structural schematic diagram of point A in Figure 5 according to an embodiment of this application;

[0022] Figure 7 is a cross-sectional view of the protective cover and rain guard according to an embodiment of the present application.

[0023] In the diagram: 1. Transformer box; 2. Inspection door; 3. Protective cover; 4. Rain guard; 5. Mounting slot; 6. Limiting slot; 7. Dust chute; 8. Mounting box; 9. Spring; 10. Intermediate plate; 11. Filter screen; 12. Connecting plate; 13. Arc plate; 14. Servo motor; 15. Rotating rod; 16. Cam. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Please refer to Figures 1-7. This invention provides a technical solution: a protective structure for outdoor power transmission and transformation equipment against wind and sand erosion, including a transformer box 1 and a protective cover 3. The transformer box 1 is made of high-strength metal, possessing good pressure resistance and corrosion resistance, effectively protecting internal electrical components. A maintenance door 2, hinged to one end, also uses a metal material matching the box. A sealing strip is installed on the maintenance door 2; when the maintenance door 2 is closed, the sealing strip tightly adheres to the transformer box 1, preventing wind, sand, and rainwater from entering the box. The protective cover 3 is installed at the ventilation openings on both sides of the transformer box 1 and is made of high-strength metal. A rainproof grille 4 is fixed to the end of the protective cover 3 away from the transformer box 1. The rainproof grille 4 is made of corrosion-resistant metal or high-strength plastic. The grille spacing of the rainproof grille 4 effectively reduces rainwater entry into the protective cover 3 without significantly affecting ventilation. The rainproof grille 4 and the protective cover 3... The fixing method is welding, which provides rain protection for the equipment.

[0026] The protective cover 3 has a mounting groove 5 at its bottom. A mounting box 8 is fixed inside the mounting groove 5. The size of the mounting groove 5 is adapted to the mounting box 8 and is fixed inside the mounting groove 5 by welding. Multiple springs 9 are welded and fixed inside the mounting box 8 at intervals. The springs 9 are made of high elasticity and fatigue-resistant alloy material to ensure that the springs 9 can work stably for a long time. A middle plate 10 is fixed to the upper end of the springs 9. The middle plate 10 is made of lightweight and strong aluminum alloy material and is tightly connected to the springs 9 by welding to ensure that the middle plate 10 can slide stably up and down inside the mounting box 8 during the extension and retraction of the springs 9.

[0027] A filter screen 11 is fixed to the upper end of the intermediate plate 10. The filter screen 11 is made of stainless steel. The filter screen 11 is inclined with the bottom of the protective cover 3 as the axis point, in the direction away from the end of the transformer box 1. The inclined angle of the filter screen 11 makes it easier for sand and dust to slide off under the action of gravity, without affecting the filtering effect of the filter screen 11. The mesh size of the filter screen 11 is designed according to the size of common sand and dust particles, which can effectively intercept sand, dust and other impurities, while ensuring that the ventilation volume meets the heat dissipation requirements of the equipment inside the transformer box 1. Limiting grooves 6 are provided on both sides of the protective cover 3. The limiting grooves 6 are inclined with the bottom of the protective cover 3 as the axis point, in the direction away from the end of the transformer box 1. The inclination angle of the limiting grooves 6 is adapted to the inclination angle of the filter screen 11. The filter screen 11 slides in the limiting grooves 6. The movement plays a good guiding and limiting role, ensuring that the filter screen 11 will not shift during the up and down vibration, and always maintains a stable working state.

[0028] A connecting plate 12 is fixed to the upper end of the filter screen 11. The connecting plate 12 is made of high-strength metal sheet and is firmly connected to the filter screen 11 by welding. The connecting plate 12 extends to the outside of the protective cover 3 and is fixed with an arc plate 13. The arc plate 13 is connected to the connecting plate 12 by welding to ensure that it will not easily fall off when subjected to external force.

[0029] Servo motors 14 are installed on both sides of the transformer box 1. The servo motors 14 are selected based on their suitable torque and stable speed, and are securely mounted on the transformer box 1 with bolts. The output end of the servo motor 14 is connected to the rotating rod 15 using a key connection to ensure stable power transmission, allowing the rotating rod 15 to rotate smoothly under the drive of the servo motor 14. Multiple cams 16 are fixed at intervals on the rotating rod 15. The cams 16 are made of high-quality carbon steel, and their contour curves ensure accurate downward pressure on the arc plate 13 during rotation. When the arc plate 13 is under pressure, it drives the filter screen plate 11 to move downward against the elastic force of the spring 9 via the connecting plate 12. During this process, the spring 9 is compressed, storing elastic potential energy. As the cam 16 continues to rotate, when the protruding part of the cam 16 leaves the arc plate 13, the spring 9 begins to release its elastic potential energy, pushing the intermediate plate 10 upward, which in turn drives the filter screen plate 11 upward. This process repeats, and the filter screen plate 11 moves upward within the limiting groove 6. Under the guidance of the filter screen 11, the filter screen vibrates up and down at high frequency. The bottom of the protective cover 3 is provided with a dust leakage groove 7, which can ensure that the dust shaken off by the filter screen 11 is smoothly discharged outside the protective cover 3.

[0030] Working principle: When outside air enters through the ventilation openings on both sides of the transformer box 1, it first enters the protective cover through the rainproof grille 4.

[0031] 3. At this time, with the bottom of the protective cover 3 as the axis, the filter screen 11, which is inclined towards the end away from the transformer box 1, filters the passing air. The filter screen 11 uses its tilt angle to make the sand and dust more likely to slide off under the action of gravity and fall to the ground through the dust discharge chute 7. The purified air can then enter the transformer box 1, reducing the corrosion of electrical components by sand and dust and ensuring the normal operation of the equipment.

[0032] When the scheduled cleaning time for the filter screen 11 arrives, the power supply to the transformer box 1 is connected via an electrical wire, and the corresponding PLC control program starts the servo motors 14 on both sides of the transformer box 1. The servo motors 14 output power to drive the rotating rod 15 to rotate. Multiple cams 16 fixed at intervals on the rotating rod 15 rotate accordingly. During the rotation of the cams 16, their protruding parts contact and press down on the arc plate 13. After the arc plate 13 is under pressure, it drives the filter screen 11 to move downward against the elastic force of the spring 9 through the connecting plate 12. During this process, the spring 9 is compressed and stores elastic potential energy. As the cams 16 continue to rotate, when the protruding parts of the cams 16 leave the arc plate 13, the spring 9 begins to release elastic potential energy, pushing the intermediate plate 10 upward, and thus driving the filter screen 11. Moving upwards and repeating this process, the filter screen 11 vibrates up and down at high frequency under the guidance of the limiting groove 6. This vibration causes some of the dust and fine sand particles attached to the filter screen 11 to be shaken off. Since the filter screen 11 is placed at an angle, the shaken dust and sand particles fall to the ground through the dust leakage groove 7 under the action of gravity, ensuring the filtration effect of the filter screen 11 and maintaining good ventilation performance. At the same time, since the filter screen 11 is placed at an angle, the dust shaken off from the upper part of the filter screen 11 is less likely to fall to the lower part of the filter screen 11 during the vibration and dust shaking process, reducing the secondary adhesion of dust on the filter screen 11 and thus improving the dust shaking efficiency of the filter screen 11.

[0033] Once the cleaning is complete, the PLC control program will control the servo motor 14 to stop running, and the rotating rod 15 and cam 16 will stop rotating and return to their original positions. At the same time, the filter screen 11 will also be stabilized in its original position under the action of the spring 9, continuing to filter the air entering the transformer box 1.

[0034] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A protective structure for outdoor power transmission and transformation equipment against wind and sand erosion, comprising a transformer box (1) and protective covers (3), wherein two of the protective covers (3) are respectively connected to the ventilation openings on both sides of the transformer box (1), characterized in that: The bottom of the protective cover (3) is connected to an installation box (8). Multiple springs (9) are fixed at intervals inside the installation box (8). An intermediate plate (10) is fixed to the upper end of the springs (9). The intermediate plate (10) slides up and down inside the installation box (8). A filter screen plate (11) is fixed to the upper end of the intermediate plate (10). The filter screen plate (11) is located inside the protective cover (3) and is inclined towards the end away from the transformer box (1) with the bottom of the protective cover (3) as the axis. A connecting plate (12) is fixed to the upper end of the filter screen plate (11). The connecting plate (12) extends to the outside of the protective cover (3) and is fixed with an arc plate (13). The transformer box (1) has rotating rods (15) connected to both sides by power drive and rotation. Multiple cams (16) are fixed at intervals on the rotating rods (15). The cams (16) are located at the upper end of the arc plate (13) and are suitable for pressing down the arc plate (13) by rotating the cams (16).

2. The wind and sand erosion resistant protective structure for outdoor power transmission and transformation equipment according to claim 1, characterized in that: The spring (9) is adapted to keep the filter plate (11) moving upward.

3. The wind and sand erosion resistant outdoor power transmission and transformation equipment protective structure according to claim 1, characterized in that, The protective cover (3) has an installation groove (5) at its bottom, and the installation box (8) is fixed in the installation groove (5).

4. The wind and sand erosion resistant outdoor power transmission and transformation equipment protective structure according to claim 1, characterized in that: The protective cover (3) is provided with limiting grooves (6) on both sides. The limiting grooves (6) are inclined in the direction away from the transformer box (1) with the bottom of the protective cover (3) as the axis. The filter screen (11) slides in the limiting grooves (6).

5. The wind and sand erosion resistant outdoor power transmission and transformation equipment protective structure according to claim 1, characterized in that: The bottom of the protective cover (3) is provided with a dust leakage groove (7), which is suitable for discharging the dust shaken off by the filter screen (11) outside the protective cover (3).

6. The wind and sand erosion resistant protective structure for outdoor power transmission and transformation equipment according to claim 1, characterized in that: The protective cover (3) has a rainproof grille (4) fixed at the end away from the transformer box (1).

7. The wind and sand erosion resistant outdoor power transmission and transformation equipment protective structure according to claim 1, characterized in that: One end of the transformer box (1) is hinged to an inspection door (2).

8. The wind and sand erosion resistant protective structure for outdoor power transmission and transformation equipment according to claim 1, characterized in that: Servo motors (14) are installed on both sides of the transformer box (1), and the output end of the servo motors (14) is connected to the rotating rod (15).

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