A high-protection type primary and secondary integrated ring main unit

Abstract

This application relates to a high-protection primary and secondary fusion ring main unit, belonging to the technical field of ring main units. It includes a base plate and a housing fixed to the upper side of the base plate. A door is installed on the vertical side of the housing, and a cover is installed on the upper surface. Two protective plates are installed opposite each other on the upper side of the cover, with the length direction of the protective plates parallel to the length direction of the cover. The sides of the two protective plates that are close to each other abut against each other. The upper sides of the two protective plates are guide slopes, which slope downwards along the direction in which the two protective plates move away from each other. The edges of the edges of the two protective plates that move away from each other are rotatably connected to the two opposite edges of the upper side of the cover. An adjusting member is provided outside the housing to control the rotation of the protective plates. In this application, the adjusting member can drive the protective plates to rotate to a horizontal direction facing the ground, allowing workers to directly use tools to clean the guide slope, thus improving cleaning efficiency.

Description

Technical Field

[0001] This application relates to the technical field of ring main units, and in particular to a high-protection primary and secondary integrated ring main unit. Background Technology

[0002] In traditional power distribution network construction, primary equipment (such as switches and transformers) and secondary equipment (such as protection devices and monitoring and control devices) have long been designed, manufactured, and installed independently. This model leads to difficulties in standardizing interfaces between equipment, hinders information exchange, and results in high maintenance costs. With the accelerated pace of smart grid construction, new and higher requirements have been placed on the automation and intelligence levels of power distribution networks. To address the many drawbacks of the traditional model and improve the reliability, operational efficiency, and automation level of power distribution networks, integrated primary and secondary ring main units have emerged. These units deeply integrate primary and secondary equipment, achieving miniaturization, integration, and intelligence, becoming a key development direction for power distribution network construction and upgrading.

[0003] Currently, a type of outdoor ring main unit is widely used. This ring main unit structure includes a mounting base plate placed on the ground, a box body fixed to the side of the mounting base plate, and a door mounted on the vertical side of the box body. A cover is also provided on the top of the box body. To cope with outdoor rainfall, the upper side of the cover is specially designed as a downward-sloping guide surface. When it rains, rainwater can smoothly slide down the guide surface to the ground, effectively reducing the possibility of rainwater eroding the upper surface of the cover and seeping into the box body. This, to a certain extent, ensures the safe operation of the equipment inside the ring main unit and adapts to the complex and changeable outdoor weather environment.

[0004] When this type of ring cage is used in outdoor environments with many birds, bird droppings or other impurities easily adhere to the upper surface of the cage lid due to the frequent activity of birds. Under long-term environmental conditions, these deposits will corrode the lid and adversely affect the overall service life of the ring cage. Regularly cleaning the top of the lid is also inconvenient, requiring the preparation of ladders and other special tools, as well as the transport of the tools to the vicinity of the cage. The whole process is cumbersome and inefficient, and there is considerable room for improvement. Summary of the Invention

[0005] The purpose of this application is to provide a high-protection primary and secondary integrated ring network box, which solves the problem that cleaning the upper surface of the box cover in the above-mentioned related technologies is cumbersome and inefficient.

[0006] The high-protection primary and secondary integrated ring main unit provided in this application adopts the following technical solution:

[0007] A high-protection primary and secondary fusion ring network box includes a base plate and a box body fixed to the upper side of the base plate. A box door is installed on the vertical side of the box body, and a box cover is installed on the upper surface. Two protective plates are installed opposite each other on the upper side of the box cover. The length direction of the protective plates is parallel to the length direction of the box cover, and the sides of the two protective plates that are close to each other abut against each other. The upper sides of the two protective plates are guide slopes that slope downwards along the direction in which the two protective plates move away from each other. The edges of the edges of the two protective plates that move away from each other are rotatably connected to the two opposite edges of the upper side of the box cover. An adjustment component for controlling the rotation of the protective plates is provided on the outside of the box body. The guide slopes can rotate with the protective plates to a horizontal direction facing the ground.

[0008] By adopting the above technical solution, this ring main unit has two rotatable protective plates installed opposite each other on the side of the cover. The upper side of these plates serves as a guide ramp. During normal use, the two protective plates are close to each other, providing protection to the upper side of the cover. When it is necessary to clean the guide ramp, the protective plates are rotated in opposite directions using an adjusting mechanism, bringing the guide ramp closer to the ground, or even rotating it to a horizontal position facing the ground. In this case, workers do not need to carry ladders or other tools; they can directly use tools to clean the guide ramp, greatly simplifying the cleaning process and improving cleaning efficiency.

[0009] Optionally, a sealing ring groove is provided on the side of the two protective plates that are close to each other, and an elastic sealing strip is embedded inside the sealing ring groove.

[0010] By adopting the above technical solution, since the ring network box is located in an outdoor environment, it will face various complex weather conditions and impurities. The presence of the elastic sealing strip can effectively reduce the possibility of impurities adhering to the surface of the box cover from the gap between the two protective plates.

[0011] Optionally, the adjusting component includes an adjusting rod located outside the housing. The end face of the protective plate along its own length is rotatably connected to the upper end of the adjusting rod. The rotating surface of the adjusting rod is parallel to the vertical plane. The adjusting rod is used to drive the protective plate to rotate. The housing is provided with a locking component for fixing the adjusting rod to rotate.

[0012] By adopting the above technical solution, the adjusting rod is located outside the enclosure, with the end face of the protective plate rotatably connected to its upper end, and the rotating surface of the adjusting rod is parallel to the vertical plane. This design makes operation more convenient and intuitive for workers, eliminating the need to enter the enclosure or use complex tools. The protective plate can be easily rotated from outside the enclosure, allowing for adjustments to different states and meeting the needs of the ring main unit in various usage scenarios. The locking mechanism on the outside of the enclosure can rotate and fix the adjusting rod after the protective plate has been rotated to the appropriate position, ensuring the protective plate remains stable in the required state. Whether under normal protection or during special conditions such as cleaning and maintenance, it remains secure, preventing accidental rotation of the protective plate due to external factors (such as wind), which could affect the protective effect or operational safety.

[0013] Optionally, the adjusting rod is provided with a locking through hole, and the box body is provided with a locking screw hole on its vertical outer surface facing the adjusting rod; the locking screw hole coincides with the locking through hole when the two protective plates abut against each other and the adjusting rod is vertically downward, and the locking component is a locking bolt that passes through the locking through hole and is screwed into the locking screw hole.

[0014] By adopting the above technical solution, in a specific state where the two protective plates are in contact with each other and the adjusting rod is vertically downward, the locking screw hole and the locking through hole coincide. At this time, by using a locking bolt to pass through the locking through hole and screw it into the locking screw hole, precise and stable rotation and fixing of the adjusting rod can be achieved. This fixing method is simple and direct to operate, and can be quickly completed by the staff outside the box without complicated procedures, thus improving operational efficiency.

[0015] Optionally, an elastic sleeve is fixedly fitted on the outer periphery of the end face of the adjusting rod away from the protective plate, and the outer periphery of the elastic sleeve is provided with anti-slip texture.

[0016] By adopting the above technical solution, the elastic sleeve acts as a buffer when the operator holds the adjusting rod to rotate the protective plate, reducing hand pressure and preventing hand fatigue or injury caused by prolonged operation, making the operation process easier. At the same time, the anti-slip texture design increases the friction between the hand and the elastic sleeve, allowing the operator to firmly grip the adjusting rod even in wet or oily environments, preventing operational errors due to slippage, and ensuring precise and stable rotation of the protective plate.

[0017] Optionally, two cleaning scrapers are slidably arranged side by side on the side of the protective plate away from the box cover. The cleaning scrapers and the side of the protective plate that are close to each other abut against each other, and the two cleaning scrapers can slide back and forth along the length of the protective plate. Connecting protrusions are fixed on the side of the two cleaning scrapers that are far from each other, and the upper end of the adjusting rod is rotatably connected to the connecting protrusions. After the guide slope is rotated to the downward position with the protective plate, the adjusting rod can drive the cleaning scrapers to slide back and forth to clean the guide slope.

[0018] By adopting the above technical solution, two cleaning scrapers are slidably installed side-by-side on the side of the protective plate away from the cover, abutting against the side of the protective plate. The upper end of the adjusting rod is rotatably connected to the connecting protrusion on the cleaning scraper. When the guide slope rotates with the protective plate to a downward position, the operator only needs to operate the adjusting rod to drive the cleaning scraper to slide back and forth along the length of the protective plate, thereby quickly and efficiently cleaning the guide slope. This design eliminates the need for additional complex cleaning tools and eliminates the need for operators to climb to high places, reducing cleaning difficulty and safety risks. At the same time, the cleaning scraper can directly contact the guide slope, effectively removing bird droppings, dust, and other impurities attached to its surface, ensuring the cleanliness of the guide slope, reducing the corrosion of the protective plate by impurities, and extending the service life of the protective plate.

[0019] Optionally, two dovetail slides are fixed along the length of the protective plate on the side away from the box cover, and dovetail grooves are opened on the sides of the cleaning scraper facing the protective plate for the dovetail slides to pass through.

[0020] By adopting the above technical solution, the special shape of the dovetail groove effectively prevents the cleaning scraper from falling off the protective plate during sliding, ensuring that it always slides stably along the predetermined direction, greatly improving the smoothness and safety of the cleaning scraper's sliding. On the other hand, the high precision of the fit between the dovetail slide bar and the dovetail groove allows the cleaning scraper to fit tightly against the protective plate, enabling more thorough removal of surface impurities when sliding along the guide slope, thus improving the cleaning effect.

[0021] Optionally, the inner wall of the dovetail slide is provided with an elastic snap-fit ​​component, and the outer surface at both ends of the dovetail slide is provided with a positioning groove for the elastic snap-fit ​​component to snap into.

[0022] By adopting the above technical solution, when the cleaning scraper slides to both ends of the dovetail slide bar, the elastic locking component will engage in the positioning groove. This design has several advantages. First, it provides clear engagement feedback to the operator. Through the tactile or audible feedback when engaged, the operator can clearly understand that the cleaning scraper has slid into place, facilitating operational judgment. Second, after engaging in the positioning groove, it enhances the installation stability of the cleaning scraper in this position, preventing it from sliding arbitrarily without human intervention. This ensures that when the ring main unit is in normal use or the protective plate is in a specific state, the cleaning scraper can remain firmly in place without affecting the normal function of other components.

[0023] Optionally, a limiting protrusion is fixed on the outer side of the box body, and a limiting notch is opened on the upper side of the limiting protrusion. When the two protective plates are rotated to a horizontal state in opposite directions, they can protect the personnel above them during subsequent maintenance. When the two protective plates are rotated to a horizontal state in opposite directions, the adjusting rod can slide along the length of the box cover to a position on the same vertical plane as the limiting protrusion. The lower end of the adjusting rod can be inserted into the limiting notch to fix the state of the protective plate at this time.

[0024] By adopting the above technical solution, when the two protective plates rotate in opposite directions to a horizontal position, they not only provide overhead protection for maintenance personnel, offering sun protection and effectively blocking falling objects to ensure their safety, but also achieve stable fixation of the protective plates through the limiting notch on the limiting protrusion. After the adjusting rod slides to the same vertical plane as the limiting protrusion and its lower end inserts into the limiting notch, the stability of the protective plates in a horizontal state is ensured, preventing the protective plates from swaying or resetting due to external factors (such as wind), thus creating a safe and reliable working environment for maintenance personnel.

[0025] Optionally, a guide slope is provided on the opening edge of the limiting notch.

[0026] By adopting the above technical solution, the guide ramp plays a crucial guiding role when the lower end of the adjusting rod needs to be inserted into the limiting notch to fix the protective plate. Since the adjusting rod may have some deviation during the sliding process, it is difficult to accurately align with the opening of the limiting notch. However, the guide ramp can automatically guide the lower end of the adjusting rod, allowing it to slide smoothly into the limiting notch.

[0027] In summary, this application includes the following beneficial technical effects:

[0028] During normal use, the two protective plates are close together and abut against each other, providing protection to the upper side of the lid. When it is necessary to clean the guide ramp, the protective plates are rotated in opposite directions by the adjusting mechanism, so that the guide ramp is close to the ground, or even rotated to a horizontal position facing the ground. At this time, the staff does not need to carry ladders or other tools, and can directly use tools to clean the guide ramp, which greatly simplifies the cleaning process and improves cleaning efficiency. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0031] Figure 2 This is a schematic diagram illustrating the installation and assembly of the enclosure and the enclosure door in an embodiment of this application;

[0032] Figure 3 This is a schematic diagram illustrating the structure of the two protective plates flipped back-to-back to face the ground in an embodiment of this application;

[0033] Figure 4 This is a partial cross-sectional view of the installation and fit of the elastic sealing strip in an embodiment of this application;

[0034] Figure 5 This is a partial structural diagram illustrating the installation and fit of the adjusting rod in an embodiment of this application;

[0035] Figure 6 yes Figure 5 An enlarged schematic diagram of part A in the middle;

[0036] Figure 7 This is a schematic diagram illustrating the installation and cooperation of the adjusting rod and the cleaning scraper when the protective plate is turned to face the ground in an embodiment of this application;

[0037] Figure 8 This is a partial structural diagram illustrating the installation and cooperation of the adjusting rod and the cleaning scraper in an embodiment of this application;

[0038] Figure 9 This is a partial cross-sectional view of the installation and assembly of the cleaning scraper according to an embodiment of this application;

[0039] Figure 10 This is a schematic diagram illustrating the installation and mating of the limiting protrusion in an embodiment of this application;

[0040] Figure 11 yes Figure 10 Enlarged diagram of part B.

[0041] In the diagram, 1. Base plate; 2. Cabinet; 21. Cabinet door; 22. Cabinet cover; 23. Limiting protrusion; 231. Limiting notch; 232. Guide slope; 3. Protective plate; 31. Guide slope; 32. Sealing ring groove; 33. Elastic sealing strip; 34. Dovetail slide; 341. Positioning groove; 4. Adjusting component; 41. Adjusting rod; 42. Locking component; 421. Locking bolt; 43. Elastic sleeve; 5. Cleaning scraper; 51. Dovetail slide; 52. Placement groove; 53. Connecting protrusion; 6. Elastic snap-fit ​​component; 61. Compression spring; 62. Arc-shaped protrusion. Detailed Implementation

[0042] The present application will be further described in detail below with reference to all the accompanying drawings.

[0043] Example:

[0044] Reference Figure 1 and Figure 2 A high-protection primary and secondary fusion ring network box includes a base plate 1 and a box body 2 fixed on the upper side of the base plate 1, wherein a box door 21 is installed on the two opposite vertical sides of the box body 2 and a box cover 22 is installed on the upper surface.

[0045] One vertical edge of the door 21 is rotatably connected to the box body 2, and the other vertical edge of the door 21 is detachably connected to the box body 2 through a conventional locking structure; the base plate 1, the box body 2 and the door 21 are all made of stainless steel, which has good high protection performance.

[0046] Reference Figure 2 and Figure 3 Two protective plates 3 are installed opposite each other on the upper side of the box cover 22. The length direction of the protective plates 3 is parallel to the length direction of the box cover 22, and the sides of the two protective plates 3 that are close to each other abut against each other. The upper side of the two protective plates 3 is a guide slope 31, which is inclined downward along the direction in which the two protective plates 3 move away from each other. The edges of the sides of the two protective plates 3 that move away from each other are rotatably connected to the two opposite edges of the upper side of the box cover 22. The box body 2 is provided with an adjusting member 4 to control the rotation of the protective plates 3.

[0047] When the ring network box is in normal use, the adjusting component 4 drives the protective plates 3 to rotate in opposite directions, so that the two protective plates 3 protect the upper side of the box cover 22, and at this time the sides of the two protective plates 3 that are close to each other abut against each other; when it is necessary to clean the guide slope 31 on the protective plate 3, the adjusting component 4 drives the two protective plates 3 to rotate in opposite directions, so that the guide slope 31 on the two protective plates 3 are both in a state close to the ground, so that it is convenient to use tools to clean the guide slope 31 directly without the need to carry a ladder.

[0048] Reference Figure 4 A sealing ring groove 32 is provided on the side of the two protective plates 3 that are close to each other. An elastic sealing strip 33 made of rubber is embedded inside the sealing ring groove 32. The elastic sealing strip 33 can also be further fixedly connected to the inner wall of the sealing ring groove 32 by glue.

[0049] When the two protective plates 3 rotate toward each other to abut each other, the elastic sealing strips 33 on the two protective plates 3 also press against each other, reducing the possibility of impurities adhering to the upper surface of the box cover 22 from the gap between the two protective plates 3.

[0050] Reference Figure 5 The number of adjusting parts 4 is four sets, and the adjusting parts 4 include adjusting rods 41 located outside the housing 2. The end face of the protective plate 3 along its own length direction is rotatably connected to the upper end of the adjusting rod 41. The rotating surface of the adjusting rod 41 is parallel to the vertical plane. The housing 2 is provided with locking parts 42 for rotating and fixing the adjusting rod 41.

[0051] A rubber elastic sleeve 43 is fixedly fitted on the outer periphery of the end face of the adjusting rod 41 away from the protective plate 3. The outer periphery of the elastic sleeve 43 is formed with anti-slip texture. When it is necessary to drive the protective plate 3 to rotate, the operator holds the elastic sleeve 43 at the lower end of the adjusting rod 41 and drives the adjusting rod 41 to rotate, thereby driving the two protective plates 3 to rotate in opposite directions or towards each other.

[0052] Reference Figure 5 and Figure 6 The locking component 42 is a locking bolt 421, which is specifically a wing bolt. The adjusting rod 41 has a locking through hole, and the housing 2 has a locking screw hole on its vertical outer surface facing the adjusting rod 41. When the two protective plates 3 abut against each other and the adjusting rod 41 is vertically downward, the locking screw hole coincides with the locking through hole. At this time, the locking bolt 421 can be screwed into the locking screw hole after passing through the locking through hole, thereby fixing the adjusting rod 41.

[0053] Reference Figure 5 , Figure 7 and Figure 8 Two cleaning scrapers 5 are slidably arranged side by side on the side of the protective plate 3 away from the box cover 22, wherein the cleaning scrapers 5 and the side of the protective plate 3 are in contact with each other; two dovetail slides 34 are fixedly arranged on the side of the protective plate 3 away from the box cover 22 along its own length direction, and dovetail grooves 51 are opened on the two ends of the cleaning scraper 5 facing the side of the protective plate 3 for the dovetail slides 34 to pass through, and the two cleaning scrapers 5 can slide back and forth along the length direction of the dovetail slides 34.

[0054] Two cleaning scrapers 5 are integrally formed with connecting protrusions 53 on their opposite sides. The upper end of the adjusting rod 41 is rotatably connected to the connecting protrusions 53. When the adjusting rod 41 drives the protective plate 3 to rotate in opposite directions, so that the guide slope 31 rotates with the protective plate 3 to a downward position, the operator can hold the lower end of the adjusting rod 41 to drive the cleaning scraper 5 to slide back and forth, thereby achieving rapid cleaning of the guide slope 31 on the protective plate 3.

[0055] Reference Figure 9 The inner wall of the dovetail slide 51 is provided with an elastic snap-fit ​​6, and the outer surface of both ends of the dovetail slide 34 is provided with positioning grooves 341 for the elastic snap-fit ​​6 to snap into. The elastic snap-fit ​​6 includes a compression spring 61 and an arc-shaped protrusion 62. The inner wall of the dovetail slide 51 is provided with a placement groove 52 for the compression spring 61 and the arc-shaped protrusion 62 to be placed. The compression spring 61 presses one side of the arc-shaped protrusion 62, so that a part of the arc-shaped protrusion 62 protrudes from the opening of the placement groove 52, and the protruding part of the arc-shaped protrusion 62 is an arc surface, and the arc length corresponding to the arc surface is a minor arc.

[0056] When the two protective plates 3 rotate towards each other to abut, and the adjusting rod 41 is locked by the locking member 42, the two cleaning scrapers 5 are at both ends of the dovetail slide 34, and the elastic snap-fit ​​member 6 is snapped into the corresponding positioning groove 341. The snap-fit ​​feeling in this state reflects that the cleaning scraper 5 has slid to this position, which can also improve the installation stability of the cleaning scraper 5 when it is in this position.

[0057] Reference Figure 10 and Figure 11 A limiting protrusion 23 is fixed on the outer side of the box body 2. A limiting notch 231 is opened on the upper side of the limiting protrusion 23, and a guide slope 232 is provided on the opening edge of the limiting notch 231. When the two protective plates 3 are rotated to a horizontal state in opposite directions, the adjusting rod 41 can slide along the length direction of the box cover 22 to a position on the same vertical plane as the limiting protrusion 23. The lower end of the adjusting rod 41 can be inserted into the limiting notch 231 to fix the state of the protective plate 3 at this time.

[0058] When staff open the door 21 of the ring network box for outdoor use for maintenance in the summer, the maintenance personnel need to stand on the outside of the door 21 to operate. At this time, the two protective plates 3 can be rotated to a horizontal position in opposite directions to protect the maintenance personnel from the sun.

[0059] The implementation principle of this application embodiment is as follows:

[0060] When the ring network box is in normal use, the adjusting component 4 drives the protective plates 3 to rotate in opposite directions, so that the two protective plates 3 protect the upper side of the box cover 22. At this time, the sides of the two protective plates 3 that are close to each other abut against each other; at the same time, the elastic sealing strips 33 on the two protective plates 3 also abut against each other, reducing the possibility of impurities adhering to the upper surface of the box cover 22 from the gap between the two protective plates 3; the adjusting rod 41 is locked by the locking component 42 (locking bolt 421). At this time, the two cleaning scrapers 5 are at both ends of the dovetail slide 34, and the elastic snap-fit ​​component 6 is snapped into the corresponding positioning groove 341, improving the installation stability of the cleaning scraper 5;

[0061] When it is necessary to clean the guide slope 31 on the protective plate 3, first release the locking part 42 from locking the adjusting rod 41, and then drive the two protective plates 3 to rotate in opposite directions through the adjusting part 4, so that the guide slope 31 on both protective plates 3 are in a state close to the ground; at this time, the staff can hold the lower end of the adjusting rod 41 to drive the cleaning scraper 5 to slide back and forth along the length direction of the dovetail slide 34, thereby achieving rapid cleaning of the guide slope 31 on the protective plate 3;

[0062] When staff open the door 21 of the ring network box for outdoor use for maintenance in the summer, the maintenance personnel need to stand outside the door 21 to operate. At this time, the two protective plates 3 are rotated back to back to a horizontal state, and the adjusting rod 41 is slid along the length of the box cover 22 to a position on the same vertical plane as the limiting protrusion 23. The lower end of the adjusting rod 41 is inserted into the limiting notch 231 to fix the protective plate 3 at this time, thereby protecting the maintenance personnel from above (blocking the sun).

[0063] Unless otherwise defined, the terms or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," "third," and similar words used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "a" or "one," and similar words do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising," "including," and similar words mean that the element or object preceding "comprising" encompasses the element or object listed following "comprising" or "including," and their equivalents, but do not exclude other elements or objects. "Above," "below," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0064] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A high-protection primary and secondary fusion ring network box, comprising a base plate (1) and a box body (2) fixed to the upper side of the base plate (1), wherein a box door (21) is installed on the vertical side of the box body (2) and a box cover (22) is installed on the upper surface; characterized in that, Two protective plates (3) are installed opposite each other on the upper side of the box cover (22). The length direction of the protective plates (3) is parallel to the length direction of the box cover (22), and the sides of the two protective plates (3) that are close to each other abut against each other. The upper sides of the two protective plates (3) are guide slopes (31), which are inclined downwards in the direction that the two protective plates (3) move away from each other; the side edges of the two protective plates (3) that move away from each other are rotatably connected to the two opposite sides of the upper side of the box cover (22); the box body (2) is provided with an adjusting member (4) to control the rotation of the protective plates (3); the guide slopes (31) can rotate with the protective plates (3) to a horizontal direction facing the ground; The adjusting component (4) includes an adjusting rod (41) located outside the housing (2). The end face of the protective plate (3) along its own length direction is rotatably connected to the upper end of the adjusting rod (41). The rotating surface of the adjusting rod (41) is parallel to the vertical plane. The adjusting rod (41) is used to drive the protective plate (3) to rotate. The housing (2) is provided with a locking component (42) for fixing the adjusting rod (41) to rotate. Two cleaning scrapers (5) are slidably arranged side by side on the side of the protective plate (3) away from the box cover (22). The cleaning scrapers (5) and the protective plate (3) abut against each other on their close sides. The two cleaning scrapers (5) can slide back and forth along the length of the protective plate (3). A connecting protrusion (53) is fixed on the side of the two cleaning scrapers (5) away from each other. The upper end of the adjusting rod (41) is rotatably connected to the connecting protrusion (53). After the guide slope (31) rotates to the downward position with the protective plate (3), the adjusting rod (41) can drive the cleaning scrapers (5) to slide back and forth to clean the guide slope (31). A limiting protrusion (23) is fixed on the outer side of the box (2). A limiting notch (231) is opened on the upper side of the limiting protrusion (23). When the two protective plates (3) are rotated to a horizontal state in opposite directions, they can protect the upper part of the maintenance personnel. When the two protective plates (3) are rotated to a horizontal state in opposite directions, the adjusting rod (41) can slide along the length direction of the box cover (22) to a position on the same vertical plane as the limiting protrusion (23). The lower end of the adjusting rod (41) can be inserted into the limiting notch (231) to fix the state of the protective plate (3) at this time.

2. The high-protection primary and secondary integrated ring main unit according to claim 1, characterized in that, A sealing ring groove (32) is provided on the side of the two protective plates (3) that are close to each other, and an elastic sealing strip (33) is embedded inside the sealing ring groove (32).

3. The high-protection primary and secondary integrated ring main unit according to claim 1, characterized in that, The adjusting rod (41) is provided with a locking through hole, and the box (2) is provided with a locking screw hole on the vertical outer surface facing the adjusting rod (41); The locking screw hole coincides with the locking through hole when the two protective plates (3) abut against each other and the adjusting rod (41) is vertically downward. The locking component (42) is a locking bolt (421) that passes through the locking through hole and is screwed into the locking screw hole.

4. A high-protection primary and secondary integrated ring main unit according to claim 1, characterized in that, An elastic sleeve (43) is fixedly fitted on the outer periphery of the end face of the adjusting rod (41) away from the protective plate (3), and the outer periphery of the elastic sleeve (43) is provided with anti-slip texture.

5. A high-protection primary and secondary integrated ring main unit according to claim 1, characterized in that, Two dovetail slides (34) are fixed on the side of the protective plate (3) away from the box cover (22) along its own length direction. The two ends of the cleaning scraper (5) are provided with dovetail grooves (51) on the side of the protective plate (3) for the dovetail slides (34) to pass through.

6. A high-protection primary and secondary integrated ring main unit according to claim 5, characterized in that, The inner wall of the dovetail slide groove (51) is provided with an elastic snap-fit ​​member (6), and the outer surface of both ends of the dovetail slide bar (34) is provided with a positioning groove (341) for the elastic snap-fit ​​member (6) to be snapped into.

7. A high-protection primary and secondary integrated ring main unit according to claim 1, characterized in that, A guide slope (232) is provided on the opening edge of the limiting notch (231).

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