Fan frequency conversion control cabinet of SVG (static var generator) equipment of photovoltaic power station

Abstract

The invention relates to the technical field of control cabinets, and discloses a fan frequency conversion control cabinet for SVG equipment of a photovoltaic power station, which comprises a cabinet body, connecting frames slidably connected in the cabinet body, transmission parts arranged in the connecting frames, and rotating shafts rotatably connected in the connecting frames, a connecting rod is connected between the two connecting frames, and the connecting rod is located in a pressing plate. The rotating wheel comprises an initial position and a set position, and the rotating wheel is pushed to the set position from the initial position by the pressing plate through the transmission part and the rotating shaft. The rotating wheels are stored through the cabinet body, meanwhile, the rotating wheels are sealed through the sealing sleeves, storage is not needed, space utilization is optimized, the requirements of different stages are met, the service life of the cabinet body is prolonged, the maintenance cost is reduced, when reduction is needed, the cabinet body can be slowly pushed firstly, the cabinet body is made to move upwards automatically, and after the rotating wheels are completely moved out of the cabinet body, the operation is convenient and fast. And the cabinet body can be quickly moved, so that the cabinet body can be easily and smoothly moved.

Description

Technical Field

[0001] The present invention relates to the technical field of control cabinets, and in particular to a frequency conversion control cabinet for a fan of an SVG device in a photovoltaic power station. Background Art

[0002] The basic principle of SVG is that a self-commutated bridge circuit is directly connected in parallel to the power grid through a reactor or a transformer. By appropriately adjusting the phase and amplitude of the AC side output voltage of the bridge circuit, or directly controlling the AC side current of the circuit, the circuit can absorb or emit reactive current that meets the requirements, so as to achieve the purpose of dynamic reactive power compensation. Since there are many electronic components in the SVG device, it is easy to generate high temperature during use. If the heat dissipation effect is not good, it is easy to cause faults such as damage to electronic components. Therefore, it is necessary to dissipate heat from the SVG device.

[0003] Among them, the frequency conversion control cabinet for the fan of the SVG device in a photovoltaic power station is an electrical control cabinet specifically used to control the operation of the fan in the SVG device. Its main function is to perform variable frequency speed regulation control on the fan motor to ensure that the fan can operate at an appropriate speed according to the heat dissipation and other requirements of the SVG device.

[0004] However, in the prior art, during the equipment update and upgrade stage or when the equipment is damaged and needs to be quickly replaced, it is necessary to move the frequency conversion control cabinet for the fan to a more suitable position to ensure the smooth progress of collaborative work. Since the rollers of most control cabinets are set at the bottom of the cabinet body and are relatively close to the ground, the roller shafts are exposed to the erosion environment of ground moisture for a long time. The sources of ground moisture are diverse. In the southern coastal areas, due to the proximity to the ocean, the air humidity remains high throughout the year, and a large amount of water vapor will accumulate near the ground. These water vapors are difficult to quickly dissipate in the station. After settling on the ground, they continuously affect the rollers. In such a humid environment, key components such as the axles and bearings inside the rollers are extremely vulnerable to rust. As the axle is the core support component for the rotation of the roller, when rust occurs, the smoothness of its surface will be damaged, increasing the friction force when the roller rotates. This not only makes it difficult to move the cabinet body, increasing the labor intensity of the staff, but also affects the movement of the cabinet body, making it impossible to operate in time when the position of the control cabinet needs to be adjusted urgently. Currently, to solve this problem, the manufacturer has taken the method of applying anti-rust paint on the surface of the rollers to relieve the rust situation. However, this method can only delay the rust speed to a certain extent and cannot fundamentally solve the problem. Secondly, it is to disassemble the rollers to compress the rollers, and then install the rollers when in use. However, during the disassembly process, it is necessary to unscrew screws or unfasten connectors such as buckles. When the cabinet body installs the rollers, it not only wastes time, but also is very difficult to install due to shaking and imbalance during installation.

[0005] Therefore, a frequency conversion control cabinet for a fan of an SVG device in a photovoltaic power station is proposed to effectively ensure that the rollers of the frequency conversion control cabinet for the fan will not be damaged and can be moved at will. Summary of the Invention

[0006] The object of the present invention is to provide a frequency conversion control cabinet for the fan of the SVG device in a photovoltaic power station, so as to solve the problems that the rollers are easily affected by rust and the service life is shortened.

[0007] The technical solution of the present invention is as follows: A frequency conversion control cabinet for the fan of the SVG device in a photovoltaic power station, including a cabinet body, further including a connecting frame slidably connected inside the cabinet body, a transmission member arranged inside the connecting frame, a rotating shaft rotatably connected inside the connecting frame, a support plate fixedly connected inside the cabinet body, a force-receiving member, a linkage wheel and a driving rod rotatably connected to the top of the support plate, a pressing plate slidably connected to the top of the support plate, a rotating wheel rotatably connected to the bottom end of the connecting frame, and a sealing sleeve slidably connected to the bottom end of the cabinet body. The force-receiving member and the linkage wheel are in contact, the linkage wheel and the driving rod are engaged, the pressing plate is sleeved outside the driving rod, the top of the pressing plate is in contact with the inside of the cabinet body, there are two sealing sleeves and they are located on both sides of the rotating wheel, there are multiple connecting frames, the number and position of the rotating wheels and the connecting frames correspond one by one, a connecting rod is connected between the two connecting frames, the connecting rod is located inside the pressing plate, the rotating wheel includes an initial position and a set position, and the rotating wheel is pushed from the initial position to the set position by the transmission member and the rotating shaft, so that the pressing plate moves the rotating wheel.

[0008] Further, stabilizing frames are rotatably connected to both sides of the bottom of the cabinet body, a push rod is arranged on one side of the cabinet body, an opening and closing door is arranged at a position close to the driving rod on one side of the cabinet body, a bottom protection shell is arranged at the bottom end of the cabinet body, a sliding sleeve is arranged inside the cabinet body, the sealing sleeve is slidably connected inside the bottom protection shell, and the number of the bottom protection shells and the sliding sleeves is equal to that of the connecting frames.

[0009] Further, two inclined grooves are opened on the pressing plate, the connecting rod penetrates through the inclined grooves. When the rotating wheel is in the initial position, the connecting rod is located at the top end of the inclined groove. When the rotating wheel is in the set position, the connecting rod is located at the bottom end of the inclined groove, and both ends of the connecting rod are located inside the sliding sleeve.

[0010] Further, a limiting strip and a support frame are arranged on the top of the support plate, a limiting notch is opened on the support plate, there are two support frames, one ends of the force-receiving member and the driving rod are rotatably connected to the support frame, and the pressing plate is slidably connected inside the limiting strip.

[0011] Further, the force-receiving member includes a straight rod slidably connected inside the cabinet body and a force-receiving part sleeved outside the straight rod.

[0012] The linkage wheel includes a first gear rotatably connected to the outside of the straight rod, a helical sleeve connected to one side of the first gear, and a return spring disposed on the other side of the first gear. A gasket is sleeved between the first gear and the return spring, and the return spring is located between the support frame and the gasket.

[0013] Further, the force-bearing member includes a connecting sleeve fixedly connected to the outside of the straight rod, a rotating helical tooth rotatably connected to the outside of the connecting sleeve, a torsion spring connected between the rotating helical tooth and the connecting sleeve, and a pressure rod fixedly connected to the bottom end of the rotating helical tooth. The rotating helical tooth is in contact with the helical sleeve, the pressure rod penetrates through the limiting notch, and when the pressure rod is vertical, it is in contact with the limiting notch.

[0014] Further, the driving rod includes a lead screw rotatably connected between the cabinet body and the support frame, and a second gear connected to one end of the lead screw. The other end of the lead screw extends to the outside of the cabinet body and is clamped with a handle. A pull handle is provided at one end of the straight rod close to the handle. The second gear meshes with the first gear, and the pressing plate is sleeved on the outside of the lead screw.

[0015] Further, a turntable is fixedly connected to the middle of the rotating shaft. A plurality of semi-circular blocks are equiangularly arranged on one side of the turntable close to the pressure rod. The side of the pressure rod close to the turntable is an arc surface. When the rotating wheel is in the initial position, the distance from the top end of the rotating wheel to the sealing sleeve is equal to the distance from the top end of the turntable to the bottom end of the pressure rod.

[0016] Further, the transmission member includes a first transmission wheel fixedly connected to the outside of the rotating wheel, a second transmission wheel rotatably connected to the outside of the rotating shaft, and a transmission sleeve sleeved between the first transmission wheel and the second transmission wheel.

[0017] The connecting frame includes a side frame slidably connected inside the cabinet body, a straight frame connected to one side of the side frame, and a top rod rotatably connected to the top end of the side frame. The connecting rod is located between the two top rods. A reinforcing rod is connected to the bottom of the side frame, and the reinforcing rod is threadedly connected to the rotating wheel.

[0018] Further, a plurality of return springs are connected between the sealing sleeve and the bottom protective shell. An arc notch is formed on one side of the sealing sleeve close to the rotating wheel. The two sides of the side frame and the straight frame are arc surfaces. An inclined strip is provided at the top of the sealing sleeve. When the rotating wheel is in the initial position, the rotating wheel is in contact with the arc notch, and the inclined strip is in contact with the side frame and the straight frame and is located below them.

[0019] The beneficial effects of the present invention:

[0020] 1. The runner is stored within the cabinet itself, and at the same time, the runner is enclosed using a sealing sleeve, eliminating the need for separate storage. This optimizes space utilization and meets the requirements of different stages. It has a high storage and protection function. When the cabinet does not need to be moved, the drive rod can be used to retract the runner, allowing the cabinet to be stably positioned on the ground. Protected by the sealing sleeve, the risk of corrosion and wear caused by the runner's long-term contact with ground moisture, dust, etc. is reduced, extending the service life of the cabinet and lowering maintenance costs. When it is necessary to move the cabinet, first slowly push the cabinet to make the cabinet automatically move upward on the base. After the runner has completely moved out of the cabinet, it can be quickly moved, making the movement of the cabinet easy and smooth.

[0021] 2. By the movement of the cabinet and the runner itself, the storage and use of the runner are realized. Workers do not need to expend a large amount of physical strength and energy to push a stuck or tilted cabinet, reducing the operation difficulty and improving work efficiency. This is particularly important in emergency situations, such as quickly transferring equipment to respond to emergencies, and can more effectively meet the requirements of various scenarios. Workers can smoothly push the cabinet to the side of each device that needs to be monitored and maintained, providing great convenience for the daily operation and maintenance of the power station.

[0022] 3. By relying on the thrust generated when the runner rotates slowly, the rotating shaft pushes the pressure plate, and then the cabinet automatically moves upward, enabling the cabinet to be quickly pushed. Thus, no other electronic drive is required, avoiding problems such as short circuits and corrosion caused by long-term placement of electronic devices. It ensures that the cabinet can be moved at any time in various harsh environments and can be moved normally according to the operator's wishes, ensuring high reliability of the equipment and low maintenance costs, and effectively reducing the overall operating cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a perspective structural view of the first perspective of the present invention;

[0024] Figure 2 is a side view of the overall structure of the present invention;

[0025] Figure 3 is of the present invention Figure 2 a cross-sectional view taken along line A-A in;

[0026] Figure 4 is a structural view of the interior of the cabinet of the present invention;

[0027] Figure 5 is a structural view of the connecting frame of the present invention;

[0028] Figure 6 is of the present invention Figure 5 an enlarged view taken at B in;

[0029] Figure 7 is a structural view of the turntable of the present invention;

[0030] Figure 8 It is a cross-sectional view of the linkage wheel of the present invention;

[0031] Figure 9 For the present invention Figure 5 An enlarged schematic view of the C part in it.

[0032] In the figure:

[0033] 1. Cabinet body; 101. Stabilizing frame; 102. Push rod; 103. Opening and closing door; 104. Bottom protective shell; 105. Sliding sleeve; 2. Connecting frame; 21. Side frame; 211. Reinforcing rod; 22. Straight frame; 23. Top rod; 3. Transmission part; 31. First transmission wheel; 32. Second transmission wheel; 33. Transmission sleeve; 4. Rotating shaft; 41. Turntable; 42. Semi-circular block; 5. Support plate; 51. Limiting strip; 52. Support frame; 53. Limiting notch; 6. Force-bearing part; 61. Straight rod; 611. Pull handle; 62. Force-bearing sleeve; 621. Connecting sleeve; 622. Rotating helical tooth; 623. Torsion spring; 624. Compressed rod; 7. Linkage wheel; 71. First gear; 72. Helical tooth sleeve; 73. Return spring; 8. Driving rod; 81. Lead screw; 82. Second gear; 821. Handle; 9. Pressure plate; 91. Inclined groove; 10. Rotating wheel; 11. Sealing sleeve; 111. Inclined strip; 12. Connecting rod; 13. Return spring; 14. Arc notch. Detailed implementation manners

[0034] To make the above objects, features and advantages of the present invention more obvious and understandable, the following will give a detailed description of the specific implementation manners of the present invention in conjunction with the drawings in the specification.

[0035] Referring to Figures 1 - 9 , which is an embodiment of the present invention, provides a fan frequency conversion control cabinet for a photovoltaic power station SVG device, including a cabinet body 1, and further including a connecting frame 2 slidably connected inside the cabinet body 1, a transmission part 3 arranged inside the connecting frame 2, a rotating shaft 4 rotatably connected inside the connecting frame 2, a support plate 5 fixedly connected inside the cabinet body 1, a force-bearing part 6, a linkage wheel 7 and a driving rod 8 rotatably connected to the top of the support plate 5, a pressure plate 9 slidably connected to the top of the support plate 5, a rotating wheel 10 rotatably connected to the bottom end of the connecting frame 2, and a sealing sleeve 11 slidably connected to the bottom end of the cabinet body 1. The force-bearing part 6 and the linkage wheel 7 are in contact, the linkage wheel 7 and the driving rod 8 are meshed, the pressure plate 9 is sleeved outside the driving rod 8, the top of the pressure plate 9 is in contact with the inside of the cabinet body 1, there are two sealing sleeves 11 and they are located on both sides of the rotating wheel 10, there are multiple connecting frames 2, and the number and positions of the rotating wheels 10 and the connecting frames 2 correspond one by one. A connecting rod 12 is connected between two connecting frames 2, the connecting rod 12 is located inside the pressure plate 9, the rotating wheel 10 includes an initial position and a set position, and the rotating wheel 10 is pushed from the initial position to the set position by the transmission part 3 and the rotating shaft 4, so that the pressure plate 9 pushes the rotating wheel 10.

[0036] Among them, since the pressing plate 9 is located between the support plate 5 and the cabinet body 1, and the support plate 5 is fixedly connected to the cabinet body 1, while the pressing plate 9 is also in contact with the cabinet body 1, the position of the cabinet body 1 can be controlled by controlling the height of the pressing plate 9. The inside of the pressing plate 9 is supported by the connecting rod 12. When the pressing plate 9 moves up and down, the cabinet body 1 also moves synchronously.

[0037] In addition, four rotating wheels 10 can be provided. Among them, the rotating wheels 10 connected to the transmission member 3 cannot rotate because their internal parts are connected to the rotating shaft 4, and can be regarded as rear wheels. The other two symmetric rotating wheels 10 are front wheels and can rotate.

[0038] Refer to Figures 1 - 4 , the two sides of the bottom of the cabinet body 1 are rotatably connected with a stabilizing frame 101, which can further stabilize the cabinet body 1. One side of the cabinet body 1 is provided with a push rod 102. An opening and closing door 103 is provided at a position of the cabinet body 1 close to the driving rod 8 on one side. A bottom protective shell 104 is provided at the bottom end of the cabinet body 1. A sliding sleeve 105 is provided inside the cabinet body 1. The sealing sleeve 11 is slidably connected inside the bottom protective shell 104. The number of the bottom protective shell 104 and the sliding sleeve 105 is equal to that of the connecting frame 2.

[0039] Refer to Figures 1 - 7 , two inclined slots 91 are opened on the pressing plate 9, and the connecting rod 12 penetrates through the inclined slots 91. When the rotating wheel 10 is in the initial position, the connecting rod 12 is located at the top end of the inclined slot 91. When the rotating wheel 10 is in the set position, the connecting rod 12 is located at the bottom end of the inclined slot 91. Both ends of the connecting rod 12 are located inside the sliding sleeve 105, and the sliding sleeve 105 will limit the connecting rod 12, so that the connecting rod 12 will not shift when the cabinet body 1 moves upward.

[0040] Refer to Figures 2 - 6 , a limiting strip 51 and a support frame 52 are provided on the top of the support plate 5. A limiting notch 53 is opened on the support plate 5. There are two support frames 52. One end of the force-bearing member 6 and the driving rod 8 are rotatably connected to the support frame 52. The pressing plate 9 is slidably connected inside the limiting strip 51.

[0041] Refer to Figures 2 - 8 , the force-bearing member 6 includes a straight rod 61 slidably connected inside the cabinet body 1 and a force-bearing part 62 sleeved outside the straight rod 61.

[0042] The linkage wheel 7 includes a first gear 71 rotatably connected outside the straight rod 61, a helical gear sleeve 72 connected to one side of the first gear 71, and a return spring 73 provided on the other side of the first gear 71. A gasket is sleeved between the first gear 71 and the return spring 73. The return spring 73 is located between the support frame 52 and the gasket.

[0043] Specifically, when the first gear 71 and the helical sleeve 72 are driven by the force 62, the first gear 71 rotates. The return spring 73 is connected to the support frame 52, and a gasket is sleeved between the first gear 71 and the return spring 73, thereby preventing the return spring 73 from being affected by the rotation of the first gear 71.

[0044] Referring to Figures 2 - 8 , the force 62 includes a connecting sleeve 621 fixedly connected to the outside of the straight rod 61, a rotating helical tooth 622 rotatably connected to the outside of the connecting sleeve 621, a torsion spring 623 connected between the rotating helical tooth 622 and the connecting sleeve 621, a pressure rod 624 fixedly connected to the bottom end of the rotating helical tooth 622. The rotating helical tooth 622 is in contact with the helical sleeve 72. The pressure rod 624 passes through the limiting notch 53. When the pressure rod 624 is vertical, it is in contact with the limiting notch 53. The inside of the limiting notch 53 will limit the pressure rod 624 to ensure that the rotation angle of the pressure rod 624 is fixed. And when the height of the cabinet body 1 is to be reduced, the rotating helical tooth 622 needs to be separated from the helical sleeve 72, otherwise it will be restricted by the limiting notch 53. By using the rotating helical tooth 622 to form a one-way drive on the helical sleeve 72, it can be ensured that during the reciprocating movement of the pressure rod 624, the pressure plate 9 can be continuously pushed to move, so that the runner 10 is separated from the cabinet body 1, and then the cabinet body 1 can be quickly pushed. Even if it is a single-person operation, the movement of the control cabinet can be easily completed.

[0045] Referring to Figures 1 - 8 , the driving rod 8 includes a lead screw 81 rotatably connected between the cabinet body 1 and the support frame 52, and a second gear 82 connected to one end of the lead screw 81. The other end of the lead screw 81 extends to the outside of the cabinet body 1 and is clamped with a handle 821. A pull handle 611 is provided at one end of the straight rod 61 close to the handle 821. The second gear 82 meshes with the first gear 71. The pressure plate 9 is sleeved on the outside of the lead screw 81. The pull handle 611 can be fixed by screws, so that the straight rod 61 cannot rotate, and the straight rod 61.

[0046] Specifically, when it is necessary to retract the pressure plate 9 so that the cabinet body 1 descends, pull the pull handle 611, so that the entire force 62 moves. At this time, the force 62 will no longer be in contact with the helical sleeve 72 to avoid jamming. At this time, rotating the handle 821 can make the lead screw 81 rotate, and then retract the pressure plate 9. The pressure plate 9 slides obliquely downward under the influence of the connecting rod 12. The cabinet body 1 loses support accordingly, and the support plate 5 and the cabinet body 1 will move synchronously with the pressure plate 9. In addition, the handle 821 can be removed and placed inside the opening and closing door 103, and when there is an external drive, the lead screw 81 can also be directly rotated by the external drive to control the rise and fall of the cabinet body 1.

[0047] Referring to Figures 1 - 9, a turntable 41 is fixedly connected to the middle of the rotating shaft 4. A plurality of semi-circular blocks 42 are arranged at equal angles on one side of the turntable 41 close to the pressure rod 624. The side of the pressure rod 624 close to the turntable 41 is an arc surface. When the runner 10 is in the initial position, the distance from the top of the runner 10 to the sealing sleeve 11 is equal to the distance from the top of the turntable 41 to the bottom end of the pressure rod 624.

[0048] Specifically, when the cabinet body 1 moves upward, since the rotating shaft 4 is connected to the connecting frame 2, at this time, the rotating shaft 4 will continuously rotate but will not move. And since the pressure rod 624 will move upward with the support plate 5, when the pressure rod 624 is no longer within the range of the turntable 41, the pressure rod 624 will no longer be squeezed by the semi-circular block 42 on one side. At this time, the whole force-receiving member 6 will not rotate, the whole driving rod 8 will also stop rotating, and the pressing plate 9 will also stop moving and be fixed. At this time, the cabinet body 1 can be pushed arbitrarily.

[0049] Refer to Figures 1 - 9 , the transmission member 3 includes a first transmission wheel 31 fixedly connected to the outside of the runner 10, a second transmission wheel 32 rotatably connected to the outside of the rotating shaft 4, and a transmission sleeve 33 sleeved between the first transmission wheel 31 and the second transmission wheel 32, so as to transmit the power when a single runner 10 rotates to the rotating shaft 4.

[0050] The connecting frame 2 includes a side frame 21 slidably connected inside the cabinet body 1, a straight frame 22 connected to one side of the side frame 21, a top rod 23 rotatably connected to the top of the side frame 21. The connecting rod 12 is located between the two top rods 23. A reinforcing rod 211 is connected to the bottom of the side frame 21. The reinforcing rod 211 is threadedly connected to the runner 10. The runner 10 is fixed by the reinforcing rod 211, and the runner 10 and the side frame 21 can rotate at the bottom of the top rod 23.

[0051] Refer to Figures 1 - 9 , a plurality of return springs 13 are connected between the sealing sleeve 11 and the bottom protective shell 104. An arc groove 14 is opened on one side of the sealing sleeve 11 close to the runner 10. The two sides of the side frame 21 and the straight frame 22 are arc surfaces. An inclined strip 111 is arranged at the top of the sealing sleeve 11. When the runner 10 is in the initial position, at this time, the runner 10 will be closed by using the sealing sleeve 11. The runner 10 fits with the arc groove 14 to ensure an effective sealing effect, and the inclined strip 111 fits with the side frame 21 and the straight frame 22 and is located below the two.

[0052] Specifically, when the cabinet body 1 moves, the sealing sleeve 11 connected to the cabinet body 1 will also move upward synchronously. At this time, affected by the arc surfaces of the side frame 21 and the straight frame 22, the inclined strip 111 moves away from the runner 10, so as to ensure that the runner 10 completely leaves the interior of the cabinet body 1. When the sealing sleeve 11 moves, it compresses the return spring 13. In addition, a round rod is arranged inside the bottom protective shell 104, and the sealing sleeve 11 can slide outside it, and the sealing sleeve 11 is restricted by the round rod.

[0053] The working principle of the present invention is as follows: when the cabinet 1 needs to be moved, the stabilizing frame 101 is first rotated and separated from the ground, and the multiple reinforcement rods 211 are removed and separated, and the lock of the rotating wheel 10 is released. At this time, the push rod 102 is used to slowly push the cabinet 1 as a whole to move. At this time, the cabinet 1 will move with the rotating wheel 10 as the support, so the rotating wheel 10 will also rotate. Among them, the rotating wheel 10 connected to the first transmission wheel 31 will also rotate synchronously when rotating. The first transmission wheel 31 drives the second transmission wheel 32 to rotate synchronously through the transmission sleeve 33, and the second transmission wheel 32 is connected to the rotating shaft 4. At this time, the rotating shaft 4 will also rotate synchronously The rotating shaft 4 drives the rotating disk 41 to rotate when rotating. When the rotating disk 41 rotates continuously, it uses the semicircular block 42 on one side to continuously and intermittently squeeze the pressure rod 624. Since the pressure rod 624 is connected to the rotating bevel gear 622, the rotating bevel gear 622 rotates forward with the straight rod 61 as a fulcrum. At the same time, the rotating bevel gear 622 rotates and compresses the torsion spring 623 when rotating forward. At this time, the rotating bevel gear 622 will mesh with the bevel gear sleeve 72, so that the bevel gear sleeve 72 rotates. When the semicircular block 42 does not squeeze the pressure rod 624, the torsion spring 623 rotates to drive the rotating bevel gear 622 to rotate. When the rotating bevel gear 622 rotates , the rotating bevel gear 622 will squeeze the bevel gear sleeve 72, and the bevel gear sleeve 72 and the first gear 71 will be squeezed and moved. When moving, the two will squeeze the return spring 73, thereby forming a one-way rotation. When the first gear 71 is affected by the rotating bevel gear 622 and rotates, the second gear 82 meshing with the first gear 71 also rotates accordingly, and the screw rod 81 and the second gear 82 rotate synchronously. Therefore, the pressure plate 9 outside the screw rod 81 moves along the path of the limit strip 51, and since the connecting rod 12 is located inside the pressure plate 9, when the connecting rod 12 is pushed by the pressure plate 9, the connecting rod 12 will move downward, and since the connecting rod 1 2 is connected to the top rod 23, and the top rod 23 is connected to the straight frame 22 and supported by the rotating wheel 10. The rotating wheel 10 cannot move downward, so that the pressing plate 9 is moved obliquely upward by the reaction, and the pressing plate 9 makes the cabinet 1 move upward. When the cabinet 1 moves upward, the supporting plate 5 connected to the cabinet 1 also moves synchronously. At this time, the linkage wheel 7 and the driving rod 8 on the top of the supporting plate 5 also move upward synchronously as a whole. At this time, the relative position of the pressing plate 9 and the screw rod 81 does not change, and then the pressing plate 9 pushes the cabinet 1 upward during the continuous translation process. At this time, the rotating wheel 10 will be completely separated from the interior of the cabinet 1, and the transfer work can be carried out faster.

[0054] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A fan frequency conversion control cabinet for SVG equipment in a photovoltaic power station, comprising a cabinet body (1), characterized in that: The cabinet (1) further comprises a connecting frame (2) slidably connected to the interior of the cabinet (1), a transmission member (3) arranged inside the connecting frame (2), a rotating shaft (4) rotatably connected to the interior of the connecting frame (2), a support plate (5) fixedly connected to the interior of the cabinet (1), a force-bearing member (6), a linkage wheel (7) and a driving rod (8) rotatably connected to the top of the support plate (5), a pressure plate (9) slidably connected to the top of the support plate (5), a rotating wheel (10) rotatably connected to the bottom end of the connecting frame (2), and a sealing sleeve (11) slidably connected to the bottom end of the cabinet (1), wherein the force-bearing member (6) and the linkage wheel (7) are in close contact with each other, and the linkage wheel (7) and the driving rod (8) are meshed with each other. The pressing plate (9) is sleeved on the outside of the driving rod (8), the top of the pressing plate (9) is in contact with the inside of the cabinet (1), two sealing sleeves (11) are provided and are located on both sides of the rotating wheel (10), a plurality of connecting frames (2) are provided, the number and position of the rotating wheel (10) and the connecting frames (2) correspond one to one, a connecting rod (12) is connected between the two connecting frames (2), the connecting rod (12) is located inside the pressing plate (9), the rotating wheel (10) includes an initial position and a set position, the rotating wheel (10) is pushed from the initial position to the set position by the pressing plate (9) through the transmission member (3) and the rotating shaft (4).

2. The fan frequency conversion control cabinet of the photovoltaic power station SVG equipment according to claim 1 is characterized by: The two sides of the bottom of the cabinet (1) are rotatably connected with a stabilizing frame (101), a push rod (102) is provided on one side of the cabinet (1), an opening and closing door (103) is provided on one side of the cabinet (1) near the driving rod (8), a bottom protective shell (104) is provided at the bottom end of the cabinet (1), a sliding sleeve (105) is provided inside the cabinet (1), the sealing sleeve (11) is slidably connected inside the bottom protective shell (104), and the number of the bottom protective shell (104) and the sliding sleeve (105) is equal to that of the connecting frame (2).

3. The fan frequency conversion control cabinet of the photovoltaic power station SVG equipment according to claim 2 is characterized by: The pressure plate (9) is provided with two inclined grooves (91), and the connecting rod (12) passes through the inclined grooves (91). When the rotating wheel (10) is located at the initial position, the connecting rod (12) is located at the top end of the inclined groove (91); when the rotating wheel (10) is located at the setting position, the connecting rod (12) is located at the bottom end of the inclined groove (91), and both ends of the connecting rod (12) are located inside the sliding sleeve (105).

4. The fan frequency conversion control cabinet of the photovoltaic power station SVG equipment according to claim 2 is characterized by: A limit strip (51) and a support frame (52) are arranged on the top of the support plate (5); a limit slot (53) is provided on the support plate (5); two support frames (52) are arranged; one end of the force-bearing member (6) and the driving rod (8) are rotatably connected to the support frame (52); and the pressure plate (9) is slidably connected to the inside of the limit strip (51).

5. The fan frequency conversion control cabinet of the photovoltaic power station SVG equipment according to claim 4 is characterized by: The force-bearing member (6) comprises a straight rod (61) slidably connected to the interior of the cabinet (1), and a force-bearing member (62) sleeved on the exterior of the straight rod (61); The linkage wheel (7) comprises a first gear (71) rotatably connected to the outside of the straight rod (61), a helical gear sleeve (72) connected to one side of the first gear (71), and a return spring (73) arranged on the other side of the first gear (71), a gasket is sleeved between the first gear (71) and the return spring (73), and the return spring (73) is located between the support frame (52) and the gasket.

6. The fan frequency conversion control cabinet of the photovoltaic power station SVG equipment according to claim 5 is characterized by: The force receiving member (62) comprises a connecting sleeve (621) fixedly connected to the outside of the straight rod (61), a rotating bevel tooth (622) rotatably connected to the outside of the connecting sleeve (621), a torsion spring (623) connected between the rotating bevel tooth (622) and the connecting sleeve (621), and a pressure rod (624) fixedly connected to the bottom end of the rotating bevel tooth (622), the rotating bevel tooth (622) is fitted with the bevel tooth sleeve (72), the pressure rod (624) passes through the limiting slot (53), and the pressure rod (624) is fitted with the limiting slot (53) when vertical.

7. The fan frequency conversion control cabinet of the photovoltaic power station SVG equipment according to claim 6 is characterized by: The driving rod (8) comprises a screw rod (81) rotatably connected between the cabinet body (1) and the support frame (52), and a second gear (82) connected to one end of the screw rod (81); the other end of the screw rod (81) extends to the outside of the cabinet body (1) and is clamped with a handle (821); a pull handle (611) is provided at one end of the straight rod (61) close to the handle (821); the second gear (82) is meshed with the first gear (71); and the pressure plate (9) is sleeved on the outside of the screw rod (81).

8. The fan frequency conversion control cabinet of the photovoltaic power station SVG equipment according to claim 6 is characterized by: A rotating disk (41) is fixedly connected to the middle of the rotating shaft (4); a plurality of semicircular blocks (42) are arranged at equal angles on one side of the rotating disk (41) close to the pressure rod (624); a side of the pressure rod (624) close to the rotating disk (41) is an arc surface; when the rotating wheel (10) is in the initial position, the distance from the top of the rotating wheel (10) to the sealing sleeve (11) is equal to the distance from the top of the rotating disk (41) to the bottom of the pressure rod (624).

9. The fan frequency conversion control cabinet of the photovoltaic power station SVG equipment according to claim 5, characterized in that: The transmission member (3) comprises a first transmission wheel (31) fixedly connected to the outside of the rotating wheel (10), a second transmission wheel (32) rotatably connected to the outside of the rotating shaft (4), and a transmission sleeve (33) sleeved between the first transmission wheel (31) and the second transmission wheel (32); The connecting frame (2) comprises a side frame (21) slidably connected to the inside of the cabinet (1), a straight frame (22) connected to one side of the side frame (21), and a top rod (23) rotatably connected to the top of the side frame (21); the connecting rod (12) is located between the two top rods (23); the bottom of the side frame (21) is connected to a reinforcing rod (211), and the reinforcing rod (211) is threadedly connected to the rotating wheel (10).

10. The fan frequency conversion control cabinet of the photovoltaic power station SVG equipment according to claim 9, characterized in that: A plurality of return springs (13) are connected between the sealing sleeve (11) and the bottom protective shell (104); an arc groove (14) is provided on a side of the sealing sleeve (11) close to the rotating wheel (10); both sides of the side frame (21) and the straight frame (22) are arc surfaces; an inclined strip (111) is provided on the top of the sealing sleeve (11); when the rotating wheel (10) is located at an initial position, the rotating wheel (10) fits in the arc groove (14), and the inclined strip (111) fits in the side frame (21) and the straight frame (22) and is located below the two.

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