Outdoor primary and secondary fusion ring network box

Abstract

The application relates to an outdoor primary and secondary fusion ring network box, and relates to the technical field of ring network boxes. The box body is provided with a plurality of installation cavities and box doors for plugging the installation cavities. A flexible protective curtain is arranged above the box body. Two support rods are slidably arranged on the opposite vertical sides of the box body. One end of the support rod is fixedly connected with a connecting piece which is slidably connected with the lower part of the vertical side of the box body. The support rod can rotate and adjust around the axis of the connecting piece. Limiting pieces are arranged outside the box body to fix the rotating and sliding states of the support rods. The upper ends of the four support rods are detachably connected with the four corners of the flexible protective curtain. The plurality of support rods can slide in the same direction and then rotate towards the ground. When the flexible protective curtain is covered with a large amount of bird excrement and impurities, the support rods can be slid and rotated to the appropriate state, so that the flexible protective curtain can be easily disassembled and replaced.

Description

Technical Field

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

[0002] As power systems evolve towards intelligence and automation, the reliability, flexibility, and intelligence of distribution networks, as a crucial link in power transmission and distribution, are becoming increasingly important. Traditional ring main units (RMMs) have revealed numerous drawbacks in long-term use: incompatible primary and secondary equipment interfaces limit the ability for inter-device collaboration; poor information exchange makes it difficult to quickly and accurately locate faults. These problems not only affect the normal operation of the distribution network but also significantly reduce maintenance efficiency and increase maintenance costs. To address these issues and promote the modernization of distribution networks, outdoor integrated primary and secondary RMMs have emerged as an important device for improving distribution network performance.

[0003] The outdoor integrated primary and secondary ring main unit features a unique structural design. It mainly consists of the enclosure, the electrical equipment inside, and the enclosure door. The electrical equipment includes primary and secondary components. Primary equipment includes load switches, circuit breakers, voltage transformers, and current transformers, responsible for power transmission and control. Secondary equipment includes intelligent terminals, distribution automation terminals, and power modules, providing protection, measurement and control, and communication functions. The enclosure is divided into multiple compartments, such as a switch compartment, busbar compartment, cable compartment, and secondary equipment compartment, facilitating the orderly installation of different electrical equipment. For outdoor installation, a concrete support platform must first be erected on the ground before the ring main unit is installed on the platform.

[0004] When outdoor integrated primary and secondary ring cages are used in environments with high bird populations, a thorny problem arises. Birds defecate during flight, and over time, bird droppings accumulate on the surface of the cage. Bird droppings contain acidic substances that corrode the cage's surface, affecting its lifespan and appearance. To solve this problem, regular cleaning with specialized tools is required. However, due to the cage's high installation height, cleaning is difficult, resulting in low efficiency and high labor and time costs. Therefore, improvements to the existing technology are urgently needed. Summary of the Invention

[0005] The purpose of this application is to provide an outdoor primary and secondary integrated ring cage to solve the problem in the above-mentioned related technologies that bird droppings are easy to adhere to the upper surface of the cage and are difficult to clean.

[0006] The outdoor primary and secondary integrated ring network box provided in this application adopts the following technical solution:

[0007] An outdoor primary and secondary integrated ring network box includes a box body installed on the upper surface of a cement base. Several installation cavities are formed on the vertical sides of the box body, and a door for sealing these cavities is installed. A flexible protective curtain is installed above the box body. Two support rods are slidably mounted on each of the two opposite vertical sides of the box body. One end of each support rod is fixed with a connector that slidably connects to the lower part of the vertical side of the box body. The support rod can rotate and adjust around the axis of the connector. The sliding surface of the support rod is parallel to the horizontal plane, and the rotating surface is parallel to the vertical plane. Limiting components are provided outside the box body to fix the rotation and sliding states of the support rods. When the support rods are in a vertically upward state, their upper ends are higher than the upper side of the box body. The four corners of the flexible protective curtain are detachably connected to the upper ends of the four support rods. Several support rods can slide in the same direction and then rotate towards the ground, facilitating the assembly and disassembly of the flexible protective curtain in this state.

[0008] By adopting the above technical solution, a flexible protective curtain is installed above the box, and supported and fixed by a sliding and rotating support rod. When there are many impurities such as bird droppings on the flexible protective curtain, the support rod can be easily slid and rotated to a suitable state, so as to easily disassemble and replace the flexible protective curtain. This effectively solves the problem that bird droppings are easy to adhere to the surface of the box and are difficult to clean when using outdoor ring net boxes, improves cleaning efficiency, reduces labor and time costs, and at the same time ensures the service life and appearance of the ring net box.

[0009] Optionally, the flexible protective curtain is fixedly installed with fixing hooks at its four corners, and the end face of the support rod away from the box is provided with fixing rings for the fixing hooks to engage.

[0010] By adopting the above technical solution, the fixed hooks at the four corners of the flexible protective curtain cooperate with the fixed rings on the end face of the support rod, which can realize the quick and detachable connection between the flexible protective curtain and the support rod. Not only is the installation and disassembly process simple and efficient, and it is convenient to replace the flexible protective curtain in time when there are many impurities, but this connection method is also simple in structure and easy to operate, which helps to improve the maintenance efficiency of outdoor primary and secondary integrated ring network boxes.

[0011] Optionally, the connector is a connecting shaft fixed on the outer periphery of the end of the support rod, and the lower part of the box body opposite to the two vertical sides is provided with a guide groove in the horizontal direction for the connecting shaft to be inserted, slid and rotate.

[0012] By adopting the above technical solution, the connector is set as a connecting shaft and cooperates with the guide groove opened on the lower side of the box body. This allows the support rod to slide and adjust its position in the horizontal direction, and to rotate and adjust its angle around the connecting shaft axis. This design provides a flexible adjustment method for the support rod, making it convenient to adjust the state of the support rod when installing or removing the flexible protective curtain. It also enhances the stability of the support rod installation and the accuracy of adjustment, and improves the practicality and operability of the overall structure of the outdoor primary and secondary integrated ring network box.

[0013] Optionally, a limiting through hole is provided on the outer periphery of the support rod, and a plurality of limiting screw holes that can coincide with the limiting through hole are provided on the housing. The limiting member is a limiting bolt that passes through the limiting bolt and is screwed into the limiting screw hole.

[0014] By adopting the above technical solution, limiting through holes are opened on the outer periphery of the support rod, and several limiting screw holes are made on the box body. The limiting bolts are screwed into the limiting screw holes through the limiting through holes to fix the sliding and rotation state of the support rod. The structure is simple and easy to operate. It can quickly and reliably lock the position of the support rod to ensure the installation of the flexible protective curtain. At the same time, the limiting bolts can be easily loosened when the state of the support rod needs to be adjusted, which improves the flexibility and stability of the outdoor primary and secondary integrated ring network box in response to different usage requirements.

[0015] Optionally, two opposing support rods form a group, and the four support rods are divided into two groups. A linkage rod is provided on the outside of the box. The sides of two opposing support rods that are close to each other are detachably connected to the two ends of the linkage rod. The linkage rod is located at the end of the support rod away from the box.

[0016] By adopting the above technical solution, two opposing support rods are set as a group, and the four support rods are divided into two groups. A linkage rod is set on the outside of the box to be detachably connected to the end of each group of opposing support rods. The linkage rod can ensure that the support rods in the same group are adjusted synchronously, improving the convenience and consistency of operation.

[0017] Optionally, a receiving notch is provided on the opposite vertical side of the box body. The surface of the receiving notch is perpendicular to the surface of the guide groove. The linkage rod can slide into the receiving notch for storage after the same group of support rods rotates to a horizontal state.

[0018] By adopting the above technical solution, a receiving notch is opened on the relatively vertical side of the box, perpendicular to the plane where the guide slide is located. When the same group of support rods rotates to the horizontal state, the linkage rod can slide into the receiving notch for storage. This design cleverly utilizes the box space, allowing the linkage rod to be neatly stored when not in use, avoiding the occupation of extra space and maintaining the cleanliness and orderliness of the external environment of the outdoor primary and secondary fusion ring network box. At the same time, it also helps to protect the linkage rod, reduce the damage it may suffer due to exposure, and improve the overall aesthetics and durability of the equipment.

[0019] Optionally, the linkage rod has a storage cavity for inserting a flexible protective curtain and a cover plate for sealing the storage cavity.

[0020] By adopting the above technical solution, a storage cavity is opened on the linkage rod and a cover is installed. When the flexible protective curtain is not needed, it can be placed into the storage cavity and then sealed with the cover. This achieves proper storage of the flexible protective curtain, avoiding damage or loss caused by random placement. At the same time, it can also make the surrounding environment of the outdoor primary and secondary integrated ring network box cleaner and more orderly, improving the overall management convenience and aesthetics of the equipment.

[0021] Optionally, the linkage rod can slide back and forth along the length of the support rod, and the support rod is provided with a fixing member to lock the sliding state of the linkage rod; after the two sets of support rods slide in the same direction, they rotate towards the ground to a tilted downward state, and the end of the support rod away from the box in this state can abut against the ground. After the sliding adjustment of the linkage rod, it is convenient for maintenance personnel to step on and climb.

[0022] By adopting the above technical solution, when the two sets of support rods slide and rotate to tilt downwards and their ends abut against the ground, the position of the linkage rod can be adjusted by sliding to easily form a "ladder" structure that is easy for maintenance personnel to step on and climb. This design not only improves the convenience and safety of maintenance operations, but also makes full use of the equipment's own structure, eliminating the need to carry extra ladders or other tools, and improving the practicality and adaptability of outdoor primary and secondary integrated ring main units in maintenance scenarios.

[0023] Optionally, the two ends of the linkage rod are fixed with linkage protrusions, and the sides of the two support rods that are close to each other are provided with linkage grooves along their own length for the linkage protrusions to be inserted and slid; the support rods are provided with a number of fixed through holes, and the linkage protrusions are provided with fixed screw holes that can coincide with the fixed through holes; the fastener is a fixing bolt that passes through the fixed through holes and is screwed into the fixed screw holes.

[0024] By adopting the above technical solution, the linkage protrusions on both ends of the linkage rod cooperate with the linkage grooves on the support rod to achieve stable sliding of the linkage rod along the length of the support rod, ensuring the smoothness and accuracy of the linkage rod adjustment; while the fixing through hole on the support rod and the fixing screw hole on the linkage protrusion are connected by fixing bolts to reliably lock the sliding state of the linkage rod. The structure is simple and easy to operate, which not only ensures the stability of the linkage rod when used in scenarios such as forming a "ladder", but also facilitates flexible adjustment of the linkage rod position when needed.

[0025] Optionally, the fixing bolt is a wing bolt.

[0026] By adopting the above technical solution, the wing bolts allow workers to manually tighten or loosen the fixing bolts, making it more efficient.

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

[0028] A flexible protective curtain is installed on top of the box, and is supported and fixed by sliding and rotating support rods. When there are a lot of bird droppings and other impurities on the flexible protective curtain, the support rods can be easily slid and rotated to a suitable position, so that the flexible protective curtain can be easily disassembled and replaced. This effectively solves the problem that bird droppings are easy to adhere to the surface of the box and are difficult to clean when using outdoor ring net boxes, improves cleaning efficiency, reduces labor and time costs, and at the same time ensures the service life and appearance of the ring net box. 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 cross-sectional structural diagram illustrating the installation and coordination of the protective curtain in an embodiment of this application;

[0032] Figure 3 This is a cross-sectional structural diagram illustrating the installation and assembly of the support components in an embodiment of this application;

[0033] Figure 4 This is a schematic diagram illustrating the structure of the support rod in a downward tilted state according to an embodiment of this application;

[0034] Figure 5 This is an exploded structural diagram illustrating the installation and distribution of the protective curtain and support rods in an embodiment of this application;

[0035] Figure 6 This is a schematic diagram illustrating the installation and assembly of the support rod in an embodiment of this application;

[0036] Figure 7 yes Figure 6 An enlarged schematic diagram of part A in the middle;

[0037] Figure 8 This is a partial cross-sectional structural diagram illustrating the installation and fit of the linkage rod in an embodiment of this application;

[0038] Figure 9This is an exploded structural diagram illustrating the installation distribution of the linkage rod and fixing bolts in an embodiment of this application;

[0039] Figure 10 This is a schematic diagram illustrating the structure of the linkage rod when it rotates with the support rod to a downward tilted state according to an embodiment of this application;

[0040] Figure 11 This is a schematic diagram illustrating the structure of the linkage rod when it is inside the receiving notch, as shown in the embodiment of this application.

[0041] In the diagram, 1. Box body; 11. Mounting cavity; 12. Guide slide; 13. Accommodation notch; 2. Box door; 3. Flexible protective curtain; 31. Fixing hook; 4. Support assembly; 41. Support rod; 411. Fixing ring; 412. Linkage slide; 413. Fixing through hole; 42. Connecting piece; 421. Connecting shaft; 43. Limiting piece; 431. Limiting bolt; 44. Linkage rod; 441. Storage cavity; 442. Linkage protrusion; 4421. Fixing screw hole; 45. Cover plate; 46. Fixing piece; 461. Fixing bolt. 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 An outdoor primary and secondary integrated ring network box includes a box body 1 installed on the upper surface of a cement base. The box body 1 has several installation cavities 11 on its vertical side and a box door 2 for sealing the installation cavities 11. One side of the box door 2 is rotatably connected to the opening edge of the installation cavity 11, and the other side of the box door 2 is locked to the other opening edge of the installation cavity 11 by a conventional locking structure.

[0045] Reference Figure 2 and Figure 3 A flexible protective curtain 3 is installed on the top of the box body 1, and a support component 4 is installed on the upper part of the box body 1 to support the flexible protective curtain 3. The flexible protective curtain 3 can be detachably installed on the top of the box body 1 through the support component 4, thereby reducing the possibility of bird droppings adhering to the upper surface of the box body 1. When there are many impurities on the upper surface of the flexible protective curtain 3, the flexible protective curtain 3 may be replaced periodically. This method is more efficient than cleaning the impurities on the upper surface of the box body 1.

[0046] Reference Figure 3 , Figure 4 and Figure 5The support assembly 4 includes two support rods 41 slidably mounted on two opposite vertical sides of the housing 1, wherein there are a total of four support rods 41, with two installed on each side of the housing 1; and one end of the support rod 41 is fixedly provided with a connector 42 that is slidably connected to the lower part of the vertical side of the housing 1, and the support rod 41 can be rotated and adjusted around the axis of the connector 42; the sliding surface of the support rod 41 is parallel to the horizontal plane and the rotating surface is parallel to the vertical plane, and the housing 1 is provided with a limiting member 43 to fix the rotation and sliding state of the support rod 41;

[0047] When the upper end of the support rod 41 is in a vertical upward position, it is higher than the upper side of the box 1. The four corners of the flexible protective curtain 3 are detachably connected to the upper ends of the four support rods 41 respectively. The four support rods 41 can slide in the same direction and then rotate towards the ground, so that the staff can easily install or remove the flexible protective curtain 3. After reinstallation, the lower part of the support rod 41 can be rotated to return it to a vertical position, then slid back to its original position, and finally fixed again using the limiting member 43.

[0048] Reference Figure 4 and Figure 5 Two opposing support rods 41 form a group, and four support rods 41 are divided into two groups; the connecting part 42 is a connecting shaft 421 fixed on the outer periphery of the lower end of the support rod 41, wherein the lower part of the box body 1 opposite to the two vertical sides is provided with two sets of vertically distributed guide grooves 12 in the horizontal direction.

[0049] The connecting shaft 421 on the same set of support rods 41 is inserted into the same guide groove 12, and the connecting shaft 421 can slide along the length of the guide groove 12 and rotate around the axis of the connecting shaft 421. Due to the vertical distribution of the guide groove 12, when the two sets of support rods 41 slide to the abutting state, they can maintain the abutting state when rotating downwards, which can better facilitate the assembly and disassembly of the flexible protective curtain 3.

[0050] Reference Figure 6 and Figure 7 The flexible protective curtain 3 is fixedly installed with fixing hooks 31 at all four corners, and the end face of the support rod 41 away from the box 1 is provided with fixing rings 411 for the fixing hooks 31 to be inserted into; in this way, the flexible protective curtain 3 can be quickly disassembled and assembled, thus improving the corresponding efficiency.

[0051] A limiting through hole is provided on the outer periphery of the support rod 41, and a number of limiting screw holes that can coincide with the limiting through hole are provided on the housing 1. The limiting member 43 is a limiting bolt 431 that passes through the limiting bolt 431 and is screwed into the limiting screw hole. Specifically, the limiting bolt 431 is a wing bolt.

[0052] Reference Figure 6 and Figure 8The outer side of the housing 1 is provided with a linkage rod 44, wherein the sides of the two support rods 41 that are close to each other are detachably connected to the two ends of the linkage rod 44. The linkage rod 44 is located at the end of the support rod 41 away from the housing 1. When the support rod 41 is rotated to the vertical upward position, the linkage rod 44 is simultaneously above the housing 1. The linkage rod 44 is used to ensure the synchronous adjustment of the same group of support rods 41, and the linkage rod 44 does not interfere with the rotation and sliding adjustment of the support rod 41.

[0053] The linkage rod 44 has a storage cavity 441 for inserting the flexible protective curtain 3 and a cover plate 45 for sealing the storage cavity 441. One side of the cover plate 45 is hinged to the edge of the opening of the storage cavity 441, and the other side of the cover plate 45 is detachably connected to the other opening of the storage cavity 441 by screws. When the flexible protective curtain 3 is not needed to protect the top of the box 1, the flexible protective curtain 3 can be placed in the storage cavity 441 for storage.

[0054] Reference Figure 9 and Figure 10 The linkage rod 44 can slide back and forth along the length of the support rod 41. The support rod 41 is provided with a fixing member 46 to lock the sliding state of the linkage rod 44. Linkage protrusions 442 are fixed on both ends of the linkage rod 44. Linkage grooves 412 are opened along the length of the two sides of the two support rods 41 that are close to each other, allowing the linkage protrusions 442 to be inserted and slide. The support rod 41 is provided with several fixing through holes 413. The linkage protrusions 442 are provided with fixing screw holes 4421 that can coincide with the fixing through holes 413. The fixing member 46 is a fixing bolt 461 that passes through the fixing through holes 413 and is screwed into the fixing screw hole 4421.

[0055] When maintenance is required on the ring main unit installed on the cement base, the cement base raises the installation height of the ring main unit. At this time, the two sets of support rods 41 slide in the same direction and rotate towards the ground to a downward tilt. At this time, the end of the support rod 41 away from the box body 1 can abut against the ground. Then, the linkage rod 44 is slid and adjusted to the middle or other position of the support rod 41. At this time, the two sets of support rods 41 and the linkage rod 44 together form a "ladder" that is easy for maintenance personnel to step on and climb, which can better maintain the ring main unit.

[0056] Reference Figure 10 and Figure 11 The box body 1 has a receiving notch 13 on its opposite vertical side, and the surface of the receiving notch 13 is perpendicular to the surface of the guide groove 12. After the same set of support rods 41 are rotated to the horizontal state, the two sets of support rods 41 can be slid towards each other so that the linkage rod 44 can slide into the receiving notch 13 for storage.

[0057] The implementation principle of this application embodiment is as follows:

[0058] Protection mode: A flexible protective curtain 3 is installed above the housing 1, which can be detached and installed via the support assembly 4. The support rod 41 can slide and rotate on the side of the housing 1. The four corners of the flexible protective curtain 3 are connected to the upper end of the support rod 411 by the fixing hooks 31, so as to achieve quick installation and removal. When there are many impurities in the flexible protective curtain 3, the support rod 41 can be slid and rotated to tilt downwards for easy disassembly and replacement. At the same time, the linkage rod 44 can store the flexible protective curtain 3. The linkage rod 44 and the support rod 41 are connected by the linkage protrusion 442 and the linkage slide groove 412, and the sliding state is locked by the fixing bolt 461.

[0059] Maintenance mode: When maintaining the ring network box, the two sets of support rods 41 slide in the same direction and rotate towards the ground until they tilt downwards, with their ends touching the ground. The linkage rod 44 is slidably adjusted to the middle of the support rod 41. The two sets of support rods 41 and the linkage rod 44 form a "ladder", which is convenient for maintenance personnel to step on and climb.

[0060] Storage mode: When the flexible protective curtain 3 is not needed, the two sets of support rods 41 rotate to a horizontal state and slide towards each other, so that the linkage rod 44 slides into the receiving notch 13 for storage, thereby achieving stable storage of the linkage rod 44 in the receiving notch 13, reducing the space occupied, and facilitating the normal use and subsequent maintenance of the ring network box.

[0061] 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.

[0062] 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. An outdoor primary and secondary fusion ring network box, comprising a box body (1) installed on the upper surface of a cement base, a plurality of installation cavities (11) are formed on the vertical side of the box body (1), and a box door (2) for plugging the installation cavities (11) is installed; characterized in that, The upper part of the box (1) is provided with a flexible protective curtain (3), the opposite vertical sides of the box (1) are slidably provided with two support rods (41), one end of the support rod (41) is fixedly provided with a connecting piece (42) which is slidably connected with the lower part of the vertical side of the box (1), the support rod (41) can be rotated and adjusted around the axis of the connecting piece (42); The sliding surface of the support rod (41) is parallel to the horizontal surface, the rotating surface is parallel to the vertical surface, the box (1) is externally provided with a limiting piece (43) which can fix the rotating and sliding state of the support rod (41); the upper end of the support rod (41) is higher than the upper side of the box (1) when the support rod (41) is in the vertical upward state, the four corners of the flexible protective curtain (3) are detachably connected with the upper end of the four support rods (41); a plurality of support rods (41) can slide in the same direction and then rotate in the direction close to the ground, and the flexible protective curtain (3) in this state is convenient to disassemble and assemble; The opposite two support rods (41) form a group, the four support rods (41) are divided into two groups, the outside of the box (1) is provided with a linkage rod (44), the sides of the opposite two support rods (41) which are close to each other are detachably connected with the two ends of the linkage rod (44), and the linkage rod (44) is located at the end of the support rod (41) away from the box (1); The opposite vertical sides of the box (1) are provided with accommodating notches (13), the surface where the accommodating notch (13) is located is perpendicular to the surface where the guide sliding groove (12) is located, the linkage rod (44) can slide into the accommodating notch (13) for storage after the support rods (41) in the same group are rotated to the horizontal state; the linkage rod (44) is provided with a storage cavity (441) for placing the flexible protective curtain (3), and a cover plate (45) is mounted on the linkage rod (44) for sealing the storage cavity (441); The linkage rod (44) can reciprocate along the length direction of the support rod (41), and the outside of the support rod (41) is provided with a fixing piece (46) for locking the sliding state of the linkage rod (44); after the two groups of support rods (41) slide in the same direction and then rotate in the direction close to the ground to the inclined downward state, the end of the support rod (41) away from the box (1) can abut against the ground, and the sliding adjustment of the linkage rod (44) is convenient for maintenance personnel to step and climb; The two end surfaces of the linkage rod (44) are fixedly provided with linkage protrusions (442), the sides of the opposite two support rods (41) which are close to each other are provided with linkage sliding grooves (412) which are inserted and slid along the length direction of the linkage protrusions (442); the support rod (41) is provided with a plurality of fixed through holes (413), the linkage protrusion (442) is provided with a fixed screw hole (4421) which can coincide with the fixed through hole (413), and the fixing piece (46) is a fixed bolt (461) which penetrates through the fixed through hole (413) and is screwed into the fixed screw hole (4421).

2. The outdoor primary / secondary fusion ring box of claim 1, wherein, The flexible protective curtain (3) is fixedly installed with a fixed clasp (31) at four corners, and the end face of the support rod (41) away from the box (1) is provided with a fixed clasp ring (411) for clamping the fixed clasp (31).

3. The outdoor primary / secondary fusion ring box of claim 1, wherein, The connecting piece (42) is a connecting shaft (421) fixedly arranged on the outer periphery of the end of the support rod (41), and the box (1) is provided with a guide sliding groove (12) at the lower part of the opposite vertical sides in the horizontal direction, which is used for sliding and rotating insertion of the connecting shaft (421).

4. The outdoor primary / secondary fusion ring box of claim 1, wherein, The outer periphery of the support rod (41) is provided with a limiting through hole, and the box (1) is provided with a plurality of limiting screw holes which can coincide with the limiting through hole, and the limiting piece (43) is a limiting bolt (431) which is screwed into the limiting screw hole after penetrating the limiting bolt (431).

5. The outdoor primary / secondary fusion ring box of claim 1, wherein, The fixed bolt (461) is a butterfly bolt.

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