A high voltage switchgear

Abstract

The application relates to the technical field of high-voltage switch cabinets, in particular to a high-voltage switch cabinet which comprises a switch cabinet main body, a mounting seat is fixedly connected to the lower side of the switch cabinet main body, a motor seat is fixedly connected to the top surface of the switch cabinet main body, a surrounding frame is rotationally connected to the motor seat, an annular frame is fixedly connected to the surrounding frame, a mounting frame is movably connected to the bottom end of the surrounding frame, a transmission mechanism is rotationally connected in the mounting frame, a guide plate is slidably connected to one side of the mounting frame, and a sand sweeping mechanism is rotationally connected to one side of the guide plate. When the surrounding frame rotates around the switch cabinet main body installed in the desert, the sand sweeping plate is driven to rotate synchronously, the sand accumulated around the switch cabinet main body is pushed away, meanwhile, the sand sweeping roller starts to rotate under the drive of the transmission mechanism, and the sand is further cleaned after being pushed away by the sand sweeping plate, so that the sand dust cannot block the heat dissipation port of the equipment or enter the electrical part, the equipment failure rate is reduced, and the service life is prolonged.

Description

Technical Field

[0001] This invention relates to the field of high-voltage switchgear technology, and more particularly to a high-voltage switchgear. Background Technology

[0002] High-voltage switchgear is equipment used in power systems to control, protect, isolate, and monitor high-voltage electrical equipment. Its main function is to control and protect electrical equipment in the power system, ensuring the safe, stable, and reliable operation of the system. High-voltage switchgear is commonly used in high-voltage transmission, distribution, and industrial power systems, and is frequently deployed in environments such as substations, power plants, and distribution rooms.

[0003] The prior art publication CN119482120A discloses a high-voltage switchgear. During the outward pushing of the handcart by the pushing assembly, if the handcart's movement encounters resistance, a locking assembly can unidirectionally lock the screw to prevent further damage caused by continued movement. Simultaneously, a buffer assembly allows the rotating component and screw to rotate relative to each other, preventing sudden stop of the handcart and potential injury to the operator. The screw has two sections of threads with different pitches, allowing the handcart to move faster in the first half of its travel near the cabinet door, improving the efficiency of pushing and pushing the handcart in and out. Simultaneously, the handcart moves slower in the second half of its travel near the stationary contact, allowing for better control of the handcart and reducing the possibility of collision between the moving and stationary contacts.

[0004] However, when existing technologies are used in desert environments, the strong winds blow large amounts of sand around the equipment, causing it to accumulate around the cabinet. Because existing technologies lack measures to address this sand accumulation, the sand can easily clog ventilation openings and heat dissipation holes, affecting airflow within the cabinet. This can lead to an increase in internal temperature, potentially exceeding the equipment's designed operating temperature range, causing overheating, and even damaging electrical components.

[0005] In summary, existing technologies lack sand removal techniques for high-voltage switchgear used in desert environments. Summary of the Invention

[0006] The purpose of this invention is to address the shortcomings of the prior art by proposing a high-voltage switchgear.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a high-voltage switchgear, comprising a switchgear body, a mounting base fixedly connected to the lower side of the switchgear body, a motor base fixedly connected to the top surface of the switchgear body, a surrounding frame rotatably connected to the motor base, a ring frame fixedly connected to the surrounding frame, a mounting bracket movably engaged at the bottom end of the surrounding frame, a transmission mechanism rotatably connected inside the mounting bracket, a guide plate slidably engaged on one side of the mounting bracket, and a sand-sweeping mechanism rotatably connected to one side of the guide plate.

[0008] Preferably, a protective cover is slidably fitted on the outer side of the motor base, and a limit handle is slidably fitted through one side of the protective cover. The inner end of the limit handle is in movable contact with the top surface of the motor base. Two limit rods are fixedly connected to the other side of the protective cover. The limit rods are T-shaped and slidably fitted with the inner wall of the motor base. A tension spring is fixedly connected to the limit rod, and the other end of the tension spring is fixedly connected to the inner wall of the motor base.

[0009] Preferably, a motor is fixedly connected to one end of the surrounding frame that is connected to the motor base, the motor is fixedly connected to the inner wall of the motor base, a rotating shaft is rotatably connected to one end of the inner wall of the surrounding frame, the top end of the rotating shaft passes through the outer wall of the ring frame and extends into the interior and is fixedly connected to a transmission wheel A, the bottom end of the rotating shaft passes through the inner wall of the surrounding frame and extends into the exterior and is fixedly connected to a transmission rod, and a snap-fit ​​groove is provided on both sides of the bottom end of the surrounding frame.

[0010] Preferably, a fixed frame is rotatably connected to one side of the ring frame, the fixed frame is fixedly connected to the motor base, and a ring rack is fixedly connected to the fixed frame, the ring rack meshing with the transmission wheel A for transmission.

[0011] Preferably, the upper two inner walls of the mounting bracket are slidably fitted with locking blocks, the outer ends of the locking blocks are movably locked with the inner walls of the locking grooves, the inner ends of the locking blocks are fixedly connected with spring A, the other ends of spring A are fixedly connected with the inner walls of the mounting bracket, the openings at both ends of the mounting bracket are rotatably connected with toothed rings, the inner ends of the locking blocks are fixedly connected with pull rings, and the pull rings are slidably fitted through the inner walls of the mounting bracket.

[0012] Preferably, the transmission mechanism includes a universal joint A, both ends of which are rotatably connected to the inner wall of the mounting bracket, and a connecting sleeve is fixedly connected to the top of the universal joint A. The top of the connecting sleeve has a concave structure, and the connecting sleeve is slidably engaged with the outer wall of the transmission rod.

[0013] Preferably, a transmission wheel B is fixedly connected to the bottom end of the universal joint A, and a gear shaft is meshed and driven on the lower side of the transmission wheel B. The gear shaft is slidably engaged with the gear ring, and a drive wheel is fixedly connected to one outer end of the gear shaft. The end of the gear shaft connected to the drive wheel is rotatably connected to the guide plate.

[0014] Preferably, one side of the guide plate is slidably contacted with the lower outer wall of the switch cabinet body, and a sand guide plate is fixedly connected to one side of the guide plate in an inclined structure. Two guide rods are fixedly connected to the guide plate, and the guide rods are slidably connected to the mounting frame. Multiple springs B are fixedly connected to one side of the guide plate, and the other end of the springs B is fixedly connected to the mounting frame.

[0015] Preferably, the sand-sweeping mechanism includes a universal joint B, with both ends of the universal joint B rotatably connected to a guide plate and a sand-guiding plate, respectively. A sand-sweeping roller is fixedly connected to the bottom end of the universal joint B, and the bristles on the outer side of the sand-sweeping roller are in sliding contact with the lower outer wall of the switch cabinet body. A driven wheel is fixedly connected to the top end of the universal joint B, and the driven wheel is meshed with the driving wheel for transmission.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. By setting up sand guide plates, when the frame rotates around the switch cabinet body installed in the desert, it will drive the sand guide plates to rotate synchronously, pushing away the sand accumulated around the switch cabinet body. At the same time, driven by the transmission mechanism, the sand sweeping rollers start to rotate, further cleaning after the sand is pushed away by the sand guide plates, preventing sand and dust from clogging the equipment's heat dissipation vents or entering the electrical parts, thereby reducing the equipment failure rate and extending its service life.

[0018] 2. The mounting frame adopts a detachable design, and the device can be disassembled during transportation to reduce its size and facilitate handling and storage. In desert environments, the disassembly and assembly of the equipment can reduce transportation difficulties and save costs. In addition, the mounting frame is equipped with a rotatable toothed ring to prevent sand and dust from entering, ensuring accurate meshing of the transmission system and avoiding transmission failures caused by sand interference.

[0019] 3. The sliding protective cover on the motor base effectively isolates sand and dust, preventing sand from entering the motor base. In harsh environments such as deserts or sandstorms, it significantly reduces the damage of sand and dust to the motor, ensuring long-term stable operation of the motor and facilitating maintenance. The ring frame design prevents sand accumulation on the ring rack, reducing sand and dust wear on the ring rack and transmission wheel A, effectively protecting the motor and transmission system, ensuring their normal operation and stability. This not only improves the equipment's working efficiency and reliability but also reduces maintenance costs, enabling the equipment to adapt to extreme desert or high-dust environments. Attached Figure Description

[0020] Figure 1 This is a front view schematic diagram of the overall structure of a high-voltage switchgear according to the present invention;

[0021] Figure 2 This is a schematic diagram of the rear side of the overall structure of a high-voltage switchgear according to the present invention;

[0022] Figure 3 This is a partial sectional view of the motor base structure of a high-voltage switchgear according to the present invention.

[0023] Figure 4 This is a partial cross-sectional schematic diagram of the surrounding frame structure of a high-voltage switchgear according to the present invention;

[0024] Figure 5 This is a partial cross-sectional schematic diagram of the ring frame structure of a high-voltage switchgear according to the present invention;

[0025] Figure 6 This is a cross-sectional schematic diagram of the mounting frame structure of a high-voltage switchgear according to the present invention;

[0026] Figure 7 This is a schematic diagram of the transmission mechanism structure of a high-voltage switchgear according to the present invention;

[0027] Figure 8 This is a schematic diagram of the guide plate and sand-sweeping mechanism of a high-voltage switchgear according to the present invention;

[0028] The following are labeled in the diagram: 1. Switch cabinet body; 2. Mounting base; 3. Motor base; 4. Surrounding frame; 5. Ring frame; 6. Mounting bracket; 7. Transmission mechanism; 8. Guide plate; 9. Sand sweeping mechanism; 301. Protective cover; 302. Limit handle; 303. Limit rod; 304. Tension spring; 401. Motor; 402. Rotating shaft; 403. Transmission wheel A; 404. Transmission rod; 405. Snap-fit ​​groove; 501. Fixing frame; 502. Ring rack; 601. Locking block; 602. Spring A; 603. Gear ring; 604. Pull ring; 701. Universal joint A; 702. Connecting sleeve; 703. Drive wheel B; 704. Gear shaft; 705. Drive wheel; 801. Guide rod; 802. Spring B; 803. Sand guide plate; 901. Universal joint B; 902. Sand sweeping roller; 903. Driven wheel. Detailed Implementation

[0029] The following description is intended to disclose the invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0030] like Figures 1-8The high-voltage switchgear shown includes a switchgear body 1, a mounting base 2 fixedly connected to the lower side of the switchgear body 1, a motor base 3 fixedly connected to the top surface of the switchgear body 1, a surrounding frame 4 rotatably connected to the motor base 3, a ring frame 5 fixedly connected to the surrounding frame 4, a mounting frame 6 movably snapped onto the bottom end of the surrounding frame 4, a transmission mechanism 7 rotatably connected inside the mounting frame 6, a guide plate 8 slidably fitted on one side of the mounting frame 6, and a sand-sweeping mechanism 9 rotatably connected to one side of the guide plate 8.

[0031] like Figure 3 As shown, a protective cover 301 is slidably fitted on the outer side of the motor base 3. A limit handle 302 is slidably fitted through one side of the protective cover 301. The inner end of the limit handle 302 is in movable contact with the top surface of the motor base 3. Two limit rods 303 are fixedly connected to the other side of the protective cover 301. The limit rods 303 are T-shaped and slidably fitted with the inner wall of the motor base 3. A tension spring 304 is fixedly connected to the limit rod 303, and the other end of the tension spring 304 is fixedly connected to the inner wall of the motor base 3. By holding the limit handle 302 and pushing the protective cover 301 upwards, and then pushing the limit handle 302 when it is higher than the motor base 3, the limit handle 302 is moved onto the motor base 3. At this time, the protective cover 301 is kept open, which facilitates the maintenance of the motor 401. After maintenance, the limit handle 302 is pulled outwards, and the protective cover 301 will automatically close under the action of the tension spring 304.

[0032] like Figure 4 As shown, a motor 401 is fixedly connected to one end of the frame 4 and the motor base 3. The motor 401 is fixedly connected to the inner wall of the motor base 3. A rotating shaft 402 is rotatably connected to the inner wall of one end of the frame 4. The top end of the rotating shaft 402 passes through the outer wall of the ring frame 5 and extends into the interior, where a transmission wheel A403 is fixedly connected. The bottom end of the rotating shaft 402 passes through the inner wall of the frame 4 and extends into the exterior, where a transmission rod 404 is fixedly connected. Snap-fit ​​grooves 405 are provided on both sides of the bottom end of the frame 4.

[0033] like Figure 5 As shown, a fixed frame 501 is rotatably connected to one side of the ring frame 5. The fixed frame 501 is fixedly connected to the motor base 3. A ring rack 502 is fixedly connected to the fixed frame 501. The ring rack 502 meshes with the transmission wheel A403 for transmission.

[0034] like Figure 6As shown, the upper two inner walls of the mounting bracket 6 are slidably fitted with locking blocks 601. The outer end of the locking block 601 is movably engaged with the inner wall of the locking groove 405. The inner end of the locking block 601 is fixedly connected with a spring A602, and the other end of the spring A602 is fixedly connected with the inner wall of the mounting bracket 6. Both ends of the mounting bracket 6 have rotatably connected toothed rings 603. The inner end of the locking block 601 is fixedly connected with a pull ring 604, which is slidably engaged with the inner wall of the mounting bracket 6. When the top of the mounting bracket 6 is aligned with the bottom of the surrounding frame 4, the connecting sleeve 702 is inserted into the transmission rod 404. Then, under the action of the spring A602, the locking block 601 is inserted into the locking groove 405, thereby fixing the mounting bracket 6 in place.

[0035] like Figure 7 As shown, the transmission mechanism 7 includes a universal joint A701. Both ends of the universal joint A701 are rotatably connected to the inner wall of the mounting bracket 6. A connecting sleeve 702 is fixedly connected to the top of the universal joint A701. The top of the connecting sleeve 702 has a concave structure, and the connecting sleeve 702 is slidably engaged with the outer wall of the transmission rod 404. Under the action of the ring rack 502, the meshing transmission wheel A403 rotates, causing the transmission wheel A403 to drive the connected rotating shaft 402 to rotate. The rotating shaft 402 then drives the transmission rod 404 to rotate, which in turn drives the universal joint A701 connected to the connecting sleeve 702 to rotate. The universal joint A701 then drives the connected transmission wheel B703 to rotate, which in turn drives the gear shaft 704 to rotate.

[0036] A drive wheel B703 is fixedly connected to the bottom of the universal joint A701. A gear shaft 704 is meshed and driven on the lower side of the drive wheel B703. The gear shaft 704 is slidably engaged with the gear ring 603. A drive wheel 705 is fixedly connected to the outer end of one side of the gear shaft 704. The end of the gear shaft 704 connected to the drive wheel 705 is rotatably connected to the guide plate 8.

[0037] like Figure 8 As shown, one side of the guide plate 8 is slidably contacted with the lower outer wall of the switch cabinet body 1. A sand guide plate 803 is fixedly connected to one side of the guide plate 8 in an inclined structure. Two guide rods 801 are fixedly connected to the guide plate 8, and the guide rods 801 are slidably engaged with the mounting frame 6. Multiple springs B802 are fixedly connected to one side of the guide plate 8, and the other end of each spring B802 is fixedly connected to the mounting frame 6. The motor 401 drives the frame 4 to rotate, which in turn causes the guide plate 8 to rotate around the switch cabinet body 1. Under the action of the springs B802, the guide plate 8 connected to the guide rods 801 remains in contact with the outer wall of the switch cabinet body 1, allowing the sand guide plate 803 to push away accumulated sand.

[0038] like Figure 8As shown, the sand-sweeping mechanism 9 includes a universal joint B901. Both ends of the universal joint B901 are rotatably connected to the guide plate 8 and the sand-guiding plate 803, respectively. A sand-sweeping roller 902 is fixedly connected to the bottom end of the universal joint B901. The bristles on the outer side of the sand-sweeping roller 902 are in sliding contact with the lower outer wall of the switch cabinet body 1. A driven wheel 903 is fixedly connected to the top end of the universal joint B901, and the driven wheel 903 meshes with the driving wheel 705 for transmission. When the gear shaft 704 rotates, it drives the connected driving wheel 705 to rotate, which in turn drives the universal joint B901 connected to the driven wheel 903 to rotate, allowing the universal joint B901 to drive the connected sand-sweeping roller 902 to rotate.

[0039] By setting up a sand guide plate 803, when the frame 4 rotates around the switch cabinet body 1 installed in the desert, it will drive the sand guide plate 803 to rotate synchronously, pushing away the sand accumulated around the switch cabinet body 1. At the same time, driven by the transmission mechanism 7, the sand sweeping roller 902 starts to rotate, further cleaning after the sand is pushed away by the sand guide plate 803, preventing sand and dust from clogging the equipment heat dissipation vents or entering the electrical parts, thereby reducing the equipment failure rate and extending its service life.

[0040] Working principle: When installing a high-voltage switchgear in a desert environment, first install the switchgear body 1 on the mounting base 2, then align the top of the mounting bracket 6 with the bottom of the surrounding bracket 4, so that the connecting sleeve 702 is inserted into the transmission rod 404, and then under the action of the spring A602, the locking block 601 is inserted into the locking groove 405 to achieve the installation and fixation of the mounting bracket 6.

[0041] During the use of the switch cabinet body 1, when sand accumulates around the switch cabinet body 1, the motor 401 drives the surrounding frame 4 to rotate. At this time, the guide plate 8 will rotate around the switch cabinet body 1. Under the action of the spring B802, the guide plate 8 connected to the guide rod 801 will always be in contact with the outer wall of the switch cabinet body 1, so that the sand guide plate 803 can push away the accumulated sand.

[0042] At the same time, under the action of the ring rack 502, the meshing transmission wheel A403 rotates, which drives the connected rotating shaft 402 to rotate, which drives the transmission rod 404 to rotate, which drives the universal joint A701 connected to the connecting sleeve 702 to rotate, which drives the transmission wheel B703 to rotate, and at this time the transmission wheel B703 can drive the gear shaft 704 to rotate.

[0043] When the gear shaft 704 rotates, it can drive the connected drive wheel 705 to rotate, so that the drive wheel 705 can drive the universal joint B901 connected to the driven wheel 903 to rotate, so that the universal joint B901 can drive the connected sand sweeping roller 902 to rotate, further cleaning the sand on the outer wall of the switch cabinet body 1 and ensuring the heat dissipation efficiency of the switch cabinet body 1.

[0044] When it is necessary to inspect the motor 401, hold the limit handle 302, push the protective cover 301 upward, and then push the limit handle 302 when it is higher than the motor base 3, so that the limit handle 302 moves onto the motor base 3. At this time, the protective cover 301 can be kept open, which is convenient for inspecting the motor 401. After the inspection is completed, pull the limit handle 302 outward. At this time, under the action of the tension spring 304, the protective cover 301 will automatically close, protecting the motor 401.

[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0046] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. A high-voltage switchgear, comprising a switchgear body, characterized in that: A mounting base is fixedly connected to the lower side of the switch cabinet body. A motor base is fixedly connected to the top surface of the switch cabinet body. A surrounding frame is rotatably connected to the motor base. A ring frame is fixedly connected to the surrounding frame. A mounting bracket is movably snapped onto the bottom end of the surrounding frame. A transmission mechanism is rotatably connected inside the mounting bracket. A guide plate is slidably fitted on one side of the mounting bracket. A sand-sweeping mechanism is rotatably connected to one side of the guide plate. A motor is fixedly connected to one end of the surrounding frame that connects to the motor base. The motor is fixedly connected to the inner wall of the motor base. A rotating shaft is rotatably connected to the inner wall of one end of the surrounding frame. The top end of the rotating shaft extends through the outer wall of the ring frame into the interior and is fixedly connected. A transmission wheel A is provided. The bottom end of the rotating shaft extends through the inner wall of the surrounding frame to the outside and is fixedly connected to a transmission rod. Both sides of the bottom end of the surrounding frame have locking grooves. A fixed frame is rotatably connected to one side of the annular frame, and the fixed frame is fixedly connected to the motor base. A ring rack is fixedly connected to the fixed frame, and the ring rack meshes with the transmission wheel A for transmission. Locking blocks are slidably fitted on both sides of the upper end of the mounting frame. The outer end of each locking block is movably locked to the inner wall of the locking groove. A spring A is fixedly connected to the inner end of each locking block, and the other end of spring A is fixedly connected to the inner wall of the mounting frame. Gear rings are rotatably connected to the openings at both ends of the mounting frame. A pull ring is fixedly connected to the inner end of the block, and the pull ring is slidably engaged with the inner wall of the mounting bracket. The transmission mechanism includes a universal joint A, both ends of which are rotatably connected to the inner wall of the mounting bracket. A connecting sleeve is fixedly connected to the top of the universal joint A, and the top of the connecting sleeve has a concave structure. The connecting sleeve is slidably engaged with the outer wall of the transmission rod. A transmission wheel B is fixedly connected to the bottom end of the universal joint A. A gear shaft is meshed with the lower side of the transmission wheel B. The gear shaft is slidably engaged with a gear ring. A drive wheel is fixedly connected to one outer end of the gear shaft. One end of the gear shaft connected to the drive wheel is rotatably connected to a guide plate. One side of the guide plate is connected to the main switch cabinet. The lower outer wall of the switch cabinet body has a sliding contact arrangement. A sand guide plate is fixedly connected to one side of the guide plate in an inclined structure. Two guide rods are fixedly connected to the guide plate. The guide rods are slidably connected to the mounting frame. Multiple springs B are fixedly connected to one side of the guide plate. The other end of the springs B is fixedly connected to the mounting frame. The sand sweeping mechanism includes a universal joint B. Both ends of the universal joint B are rotatably connected to the guide plate and the sand guide plate, respectively. A sand sweeping roller is fixedly connected to the bottom end of the universal joint B. The bristles on the outer side of the sand sweeping roller are in sliding contact with the lower outer wall of the switch cabinet body. A driven wheel is fixedly connected to the top end of the universal joint B. The driven wheel is meshed with the driving wheel for transmission.

2. A high-voltage switchgear according to claim 1, characterized in that: A protective cover is slidably fitted on the outer side of the motor base. A limit handle is slidably fitted through one side of the protective cover. The inner end of the limit handle is in movable contact with the top surface of the motor base. Two limit rods are fixedly connected to the other side of the protective cover. The limit rods are T-shaped and slidably fitted with the inner wall of the motor base. A tension spring is fixedly connected to the limit rod, and the other end of the tension spring is fixedly connected to the inner wall of the motor base.

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