Gas tank structure of ring main unit

Abstract

The utility model provides an air box structure of a ring main unit, which is provided with an air box rear plate, the air box rear plate comprises an observation window, a perspective hole, a first reinforcing rib and a second reinforcing rib, the first reinforcing rib is horizontally arranged on the outer side surface of the air box rear plate and located on the upper side or the lower side of the perspective hole, and the second reinforcing rib is horizontally arranged on the outer side surface of the air box rear plate. The second reinforcing rib is vertically arranged on the outer side face of the air box rear plate and located on the left side or the right side of the perspective hole. The first reinforcing rib comprises a plurality of grooves, each groove comprises a plurality of first rectangular leakage holes, the second reinforcing rib comprises a plurality of bosses and a plurality of boss leakage holes, the boss leakage holes are formed in the upper wall face of the second reinforcing rib, each boss comprises a plurality of meshing teeth, the meshing teeth are arranged on the side wall face of the second reinforcing rib, and each meshing tooth comprises a plurality of second rectangular leakage holes and a plurality of rectangular protruding blocks. And the side wall surfaces of the first reinforcing ribs are meshed with the second rectangular leakage holes, and the rectangular convex blocks are meshed with the first rectangular leakage holes, so that the overall rigidity of the gas tank structure is improved, and the gas tightness of the gas tank structure is improved.

Description

Technical Field

[0001] The utility model relates to the field of ring network cabinets, in particular to an air box structure of a ring network cabinet. Background Art

[0002] In the existing technology, most of the gas boxes of ring network cabinets need to be equipped with observation windows to observe the status of internal switches, but the gas boxes also need to be mounted with large circuit breaker mechanisms, isolation mechanisms and other mechanical / electrical components, which makes the gas box structure prone to large rigid deformation, and thus easily creates a gap between the observation window and the interior of the gas box, causing air leakage inside the gas box structure, reducing the air tightness of the gas box structure. Summary of the Invention

[0003] The main purpose of the embodiment of the present utility model is to propose an air box structure of a ring network cabinet, and then by arranging meshing and staggered reinforcement ribs on the rear plate of the air box, the overall stiffness of the air box structure is improved, large rigid deformation of the air box structure is suppressed, air leakage inside the air box structure is avoided, and the air tightness of the air box structure is improved.

[0004] To achieve the above-mentioned purpose, the first aspect of the embodiment of the present invention proposes an air box structure of a ring network cabinet, comprising: an air box rear plate, the air box rear plate comprising an observation window, a perspective hole, a first reinforcing rib and a second reinforcing rib, the perspective hole runs through the air box rear plate, the observation window is arranged in the perspective hole, the first reinforcing rib is horizontally arranged on the outer side surface of the air box rear plate and is located on the upper side or lower side of the perspective hole, the second reinforcing rib is vertically arranged on the outer side surface of the air box rear plate and is located on the left side or right side of the perspective hole; wherein, the first reinforcing rib comprises a plurality of grooves, the grooves are arranged on the upper wall surface of the first reinforcing rib The groove includes a plurality of first rectangular leakage holes, the second reinforcement rib includes a plurality of bosses and a plurality of boss leakage holes, the positions of the boss leakage holes correspond one to one with the positions of the bosses, the boss leakage holes are arranged on the upper wall surface of the second reinforcement rib, the boss includes a plurality of meshing teeth, the meshing teeth are arranged on the side wall surface of the second reinforcement rib, the meshing teeth include a plurality of second rectangular leakage holes and a plurality of rectangular protrusions, the side wall surface of the first reinforcement rib is meshed with the second rectangular leakage holes, the rectangular protrusions are meshed with the first rectangular leakage holes, and the boss leakage holes are used as welding connection leakage holes after the first reinforcement rib and the second reinforcement rib are meshed with each other.

[0005] Furthermore, in some embodiments, the air box rear plate further includes a third reinforcing rib, which is horizontally arranged on the inner side surface of the air box rear plate and located on the upper side or the lower side of the perspective hole.

[0006] Furthermore, in some embodiments, the rear plate of the air box also includes a flange, which is nested between the observation window and the perspective hole, the center of the flange overlaps with the center of the perspective hole, and a first stud is provided on the outer side of the flange. The observation window is fixed to the outer side of the flange based on the first stud, and the center of the flange overlaps with the center of the perspective hole.

[0007] Furthermore, in some embodiments, the wall thickness of the flange is greater than 6 mm, the inner ring diameter of the flange is smaller than the diameter of the perspective hole, the outer ring diameter of the flange is larger than the diameter of the perspective hole, the welding method between the outer ring of the flange and the outer side surface of the air box rear plate is a closed circumferential full weld, and the welding method between the inner ring of the flange and the inner side surface of the air box rear plate is a closed circumferential full weld.

[0008] Furthermore, in some embodiments, the observation window includes a circular groove and a sealing ring. The circular groove is provided on the inner wall surface of the observation window. The sealing ring is embedded in the circular groove. The sealing ring and the flange are tightly attached to each other.

[0009] Furthermore, in some embodiments, the air box rear plate also includes a second stud and a multi-point source distributed astigmatism lamp. The second stud is arranged on the inner side of the air box rear plate and is located around the perspective hole. The multi-point source distributed astigmatism lamp is installed on the inner side of the air box rear plate based on the second stud. The center of the multi-point source distributed astigmatism lamp overlaps with the center of the perspective hole.

[0010] Furthermore, in some embodiments, the multi-point source distributed astigmatism lamp includes a lamp stand and a plurality of astigmatism lamps, each of the astigmatism lamps is connected in parallel with each other, the lamp stand includes a plurality of sub-lamp stands, the lamp stand forms a four-leaf clover shape structure based on the position distribution of each sub-lamp stand, the center of the lamp stand is a hollow design, the sub-lamp stand includes a first lamp surface and a second lamp surface, the sub-lamp stand forms a flat Z-shaped structure based on the position distribution of the first lamp surface and the second lamp surface, and the distance from the first lamp surface to the center of the perspective hole is smaller than the distance from the second lamp surface to the center of the perspective hole.

[0011] Furthermore, in some embodiments, the multi-point source distributed astigmatism lamp also includes multiple explosion-proof shells, which are arranged above the astigmatism lamp. The explosion-proof shells include multiple light-transmitting holes, and each light-transmitting hole is distributed in a honeycomb shape on the surface of the explosion-proof shell and penetrates the explosion-proof shell.

[0012] Further, in some embodiments, the first lamp surface includes a plurality of first mounting holes, the first mounting holes are used to install the sub-lamp holder on the inner side of the rear plate of the gas box, the second lamp surface includes a plurality of second mounting holes and a plurality of third mounting holes, the second mounting holes are used to install the astigmatism lamp above the sub-lamp holder, and the third mounting holes are used to install the explosion-proof shell above the sub-lamp holder.

[0013] Furthermore, in some embodiments, the airbox structure also includes an airbox side panel and an airbox front panel, the airbox side panel is connected to the airbox rear panel, the airbox front panel is connected to the airbox side panel, the connection between the airbox front panel and the airbox side panel is a full weld connection, and the connection between the airbox side panel and the airbox rear panel is a full weld connection, wherein the airbox front panel, the airbox side panel and the airbox rear panel are all stainless steel plate structures, and the thickness of the airbox front panel, the airbox side panel and the airbox rear panel are all greater than or equal to 3 mm.

[0014] The embodiments of the present invention have the following beneficial effects: the present invention is provided with an air box rear plate, the air box rear plate includes an observation window, a perspective hole, a first reinforcing rib and a second reinforcing rib, the perspective hole runs through the air box rear plate, the observation window is arranged in the perspective hole, the first reinforcing rib is horizontally arranged on the outer side surface of the air box rear plate and is located on the upper side or the lower side of the perspective hole, and the second reinforcing rib is vertically arranged on the outer side surface of the air box rear plate; wherein, the first reinforcing rib includes a plurality of grooves, the grooves are arranged on the upper wall surface of the first reinforcing rib, the grooves include a plurality of first rectangular leakage holes, the second reinforcing rib includes a plurality of bosses and a plurality of boss leakage holes, the positions of the boss leakage holes correspond one to one with the positions of the bosses, and the bosses The leakage hole is arranged on the upper wall surface of the second reinforcement rib, the boss includes a plurality of meshing teeth, the meshing teeth are arranged on the side wall surface of the second reinforcement rib, the meshing teeth include a plurality of second rectangular leakage holes and a plurality of rectangular protrusions, the side wall surface of the first reinforcement rib and the second rectangular leakage hole are meshed with each other, the rectangular protrusions are meshed with the first rectangular leakage hole, the boss leakage hole is used as a welding connection leakage hole after the first reinforcement rib and the second reinforcement rib are meshed with each other, and then by arranging meshing and staggered reinforcement ribs on the rear plate of the air box, the overall stiffness of the air box structure is improved, the large rigid deformation of the air box structure is suppressed, the internal leakage of the air box structure is avoided, and the air tightness of the air box structure is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the outer side of the rear plate of the air box structure provided by an embodiment of the present utility model;

[0016] Figure 2 This is a schematic structural diagram of the inner side of the rear plate of the air box provided by an embodiment of the present utility model;

[0017] Figure 3 This is a schematic structural diagram of the first reinforcing rib and the second reinforcing rib provided in an embodiment of the present utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the mutual engagement between the first reinforcing rib and the second reinforcing rib provided in an embodiment of the present utility model;

[0019] Figure 5 This is a schematic structural diagram of a flange provided by an embodiment of the present utility model;

[0020] Figure 6 This is a schematic structural diagram of an observation window provided by an embodiment of the present utility model;

[0021] Figure 7 This is a schematic structural diagram of a multi-point source distributed astigmatism lamp provided by an embodiment of the present utility model;

[0022] Figure 8 This is a structural diagram of a lamp stand provided by an embodiment of the present utility model;

[0023] Figure 9 This is a schematic structural diagram of an explosion-proof housing provided by an embodiment of the present utility model;

[0024] Figure 10 It is a schematic diagram of the outer side of the front plate of the air box structure provided by an embodiment of the present utility model.

[0025] Reference numerals: air box rear plate 1000, observation window 1100, circular groove 1110, sealing ring 1120, perspective hole 1200, first reinforcing rib 1300, groove 1310, first rectangular leakage hole 1311, second reinforcing rib 1400, boss 1410, meshing tooth 1411, second rectangular leakage hole 14111, rectangular protrusion 14112, boss leakage hole 1420, third reinforcing rib 1500, flange 1600, first stud 1610, second stud 1700, multi-point source distributed astigmatism lamp 2000, lamp holder 2100, sub-lamp holder 2110, first lamp surface 2111, first mounting hole 21111, second lamp surface 2112, second mounting hole 21121, third mounting hole 21122, astigmatism lamp 2120, explosion-proof shell 2130, light-transmitting hole 2131, air box side panel 3000, air box front panel 4000. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technical personnel in the technical field of the present invention. The terms used herein are only for the purpose of describing the embodiments of the present invention and are not intended to limit the present invention.

[0028] In the existing technology, most of the gas boxes of ring network cabinets need to be equipped with observation windows to observe the status of internal switches, but the gas boxes also need to be mounted with large circuit breaker mechanisms, isolation mechanisms and other mechanical / electrical components, which makes the gas box structure prone to large rigid deformation, and thus easily creates a gap between the observation window and the interior of the gas box, causing air leakage inside the gas box structure, reducing the air tightness of the gas box structure.

[0029] Based on this, the utility model is provided with an air box rear plate, the air box rear plate includes an observation window, a perspective hole, a first reinforcing rib and a second reinforcing rib, the perspective hole runs through the air box rear plate, the observation window is arranged in the perspective hole, the first reinforcing rib is horizontally arranged on the outer side surface of the air box rear plate and is located on the upper side or lower side of the perspective hole, and the second reinforcing rib is vertically arranged on the outer side surface of the air box rear plate; wherein, the first reinforcing rib includes a plurality of grooves, the grooves are arranged on the upper wall surface of the first reinforcing rib, the grooves include a plurality of first rectangular leakage holes, the second reinforcing rib includes a plurality of bosses and a plurality of boss leakage holes, the positions of the boss leakage holes correspond one to one with the positions of the bosses, the boss leakage holes are arranged on the second The upper wall surface of the reinforcement rib, the boss includes a plurality of meshing teeth, the meshing teeth are arranged on the side wall surface of the second reinforcement rib, the meshing teeth include a plurality of second rectangular leakage holes and a plurality of rectangular protrusions, the side wall surface of the first reinforcement rib and the second rectangular leakage holes are meshed with each other, the rectangular protrusions are meshed with the first rectangular leakage holes, and the boss leakage holes are used as welding connection leakage holes after the first reinforcement rib and the second reinforcement rib are meshed with each other, and then by arranging meshing and staggered reinforcement ribs on the rear plate of the air box, the overall stiffness of the air box structure is improved, the large rigid deformation of the air box structure is suppressed, the internal leakage of the air box structure is avoided, and the air tightness of the air box structure is improved.

[0030] The gas box structure of the ring network cabinet provided by the embodiment of the present utility model is specifically described through the following embodiments.

[0031] The following is a further description of the embodiments of the present invention with reference to the accompanying drawings.

[0032] Reference Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, Figure 1 This is a schematic diagram of the outer side of the rear plate of the air box structure provided by an embodiment of the present utility model. Figure 2 This is a schematic structural diagram of the inner side of the air box rear plate provided by an embodiment of the present utility model. Figure 3 This is a schematic structural diagram of the first and second reinforcing ribs provided in an embodiment of the present invention. Figure 4 It is a schematic structural diagram of the mutual engagement between the first reinforcing rib and the second reinforcing rib provided in an embodiment of the present invention. The embodiment of the present invention provides an air box structure of a ring network cabinet, including: an air box rear plate 1000, the air box rear plate 1000 includes an observation window 1100, a perspective hole 1200, a plurality of first reinforcing ribs 1300 and a plurality of second reinforcing ribs 1400, the perspective hole 1200 passes through the air box rear plate 1000, the observation window 1100 is arranged in the perspective hole 1200, the first reinforcing rib 1300 is horizontally arranged on the outer side surface of the air box rear plate 1000 and is located on the upper side or lower side of the perspective hole 1200, and the second reinforcing rib 1400 is vertically arranged on the outer side surface of the air box rear plate 1000 and is located on the left side or right side of the perspective hole 1200.

[0033] The first reinforcing rib 1300 includes a plurality of grooves 1310, the grooves 1310 are provided on the upper wall of the first reinforcing rib 1300, the grooves 1310 include a plurality of first rectangular leak holes 1311, the second reinforcing rib 1400 includes a plurality of bosses 1410 and a plurality of boss leak holes 14201420, the positions of the boss leak holes 14201420 correspond to the positions of the bosses 1410 one by one, the boss leak holes 14201420 are provided on the upper wall of the second reinforcing rib 1400, the boss 1410 includes a plurality of The meshing teeth 1411 are arranged on the side wall surface of the second reinforcing rib 1400. The meshing teeth 1411 include a plurality of second rectangular leakage holes 14111 and a plurality of rectangular protrusions 14112. The side wall surface of the first reinforcing rib 1300 is meshed with the second rectangular leakage holes 14111. The rectangular protrusions 14112 are meshed with the first rectangular leakage holes 1311. The boss leakage holes 14201420 are used as welding connection leakage holes after the first reinforcing rib 1300 and the second reinforcing rib 1400 are meshed with each other.

[0034] It should be noted that the first reinforcing ribs 1300 and the second reinforcing ribs 1400 will be combined into a reinforcing rib structure in the shape of a cross after meshing welding, and the number of first reinforcing ribs 1300 or second reinforcing ribs 1400 can be multiple. When there are multiple first reinforcing ribs 1300, each first reinforcing rib 1300 is parallel to each other. Similarly, when there are multiple second reinforcing ribs 1400, each second reinforcing rib 1400 is parallel to each other.

[0035] The multiple first reinforcing ribs 1300 and the multiple second reinforcing ribs 1400 are combined into a mesh-like reinforcing rib network, with the perspective hole 1200 located within this mesh. Generally, the distance from the top of the perspective hole 1200 to the first reinforcing rib 1300 is equal to the distance from the bottom of the perspective hole 1200 to the first reinforcing rib 1300. Similarly, the distance from the left side of the perspective hole 1200 to the second reinforcing rib 1400 is equal to the distance from the right side of the perspective hole 1200 to the second reinforcing rib 1400. As a result, the pressure around the perspective hole 1200 is evenly distributed across the first and second reinforcing ribs 1300 and 1400 in both the horizontal and vertical directions. This prevents excessive pressure at a specific location around the perspective hole 1200 from causing local deformation of the airbox rear panel 1000, thereby improving the structural rigidity and anti-deformation capability of the airbox rear panel 1000 around the perspective hole 1200.

[0036] It should be noted that each first reinforcing rib 1300 and second reinforcing rib 1400 is welded at a welding point at regular intervals on the air box rear plate 1000, so that each first reinforcing rib 1300 and second reinforcing rib 1400 can be fixed on the air box rear plate 1000. At the same time, the wall thickness of each first reinforcing rib 1300 and second reinforcing rib 1400 is at least 3 mm, and the length of the first reinforcing rib 1300 is basically equal to the long side length of the air box rear plate 1000.

[0037] Based on this, by setting the first reinforcing rib 1300 and the second reinforcing rib 1400, and the first reinforcing rib 1300 and the second reinforcing rib 1400 can engage with each other, the welding connection leak hole after the first reinforcing rib 1300 and the second reinforcing rib 1400 engage with each other is welded, which can improve the stiffness of the reinforcing rib, thereby suppressing the deformation of the air box rear plate 1000 and preventing the internal gas of the air box from leaking easily through the observation window 1100.

[0038] Further, refer to Figure 2 As shown, Figure 2 It is a structural schematic diagram of the inner side of the air box rear plate provided by an embodiment of the present invention. The embodiment of the present invention provides an air box structure with internal visualization. The air box rear plate 1000 also includes a third reinforcing rib 1500. The third reinforcing rib 1500 is horizontally arranged on the inner side of the air box rear plate 1000 and is located on the upper side or lower side of the perspective hole 1200.

[0039] Among them, the wall thickness of the third reinforcing rib 1500 is at least 3 mm, the length of the third reinforcing rib 1500 is equivalent to the length of the first reinforcing rib 1300, and the number of third reinforcing ribs 1500 can be multiple. When there are multiple third reinforcing ribs 1500, each third reinforcing rib 1500 is parallel to each other.

[0040] It should be noted that, due to the good airtightness of the airbox structure, the gas inside the airbox structure is sensitive to the temperature of the airbox structure. When the temperature around the airbox structure drops sharply, the gas inside the airbox structure contracts, and the external atmospheric pressure exerts a greater force on the box wall, which will cause the airbox structure to be subjected to an inward force. Since the first reinforcement rib 1300 and the second reinforcement rib 1400 are arranged on the outside of the airbox rear plate 1000, they cannot effectively resist the inward force.

[0041] Based on this, by setting the third reinforcing rib 1500, the third reinforcing rib 1500 is horizontally arranged on the inner side of the air box rear plate 1000 and is located on the upper or lower side of the perspective hole 1200, which can effectively prevent the inward deformation of the air box rear plate 1000 and solve the problem that the gas inside the air box is easy to leak through the observation window 1100.

[0042] Further, refer to Figure 2 and Figure 5 As shown, Figure 5 It is a structural schematic diagram of the flange provided in an embodiment of the present invention. The air box rear plate 1000 also includes a flange 1600. The flange 1600 is nested between the observation window 1100 and the perspective hole 1200. The center of the flange 1600 overlaps with the center of the perspective hole 1200.

[0043] Furthermore, a first stud 1610 is provided on the outer side of the flange 1600 , and the observation window 1100 is fixed to the outer side of the flange 1600 based on the first stud 1610 . The center of the flange 1600 and the center of the perspective hole 1200 overlap with each other.

[0044] Based on this, by interconnecting the flange 1600, the observation window 1100 and the perspective hole 1200, the sealing of the observation window 1100 in the perspective hole 1200 can be further improved, preventing the observation window 1100 from leaking due to its excessive size.

[0045] It should be noted that there can be multiple first studs 1610, and the present invention does not impose any specific limitation.

[0046] Furthermore, the wall thickness of the flange 1600 is greater than 6 mm, thereby increasing the structural strength of the flange 1600 and preventing the flange 1600 from deforming and causing air leakage in the air box structure.

[0047] It should be noted that the inner ring diameter of the flange 1600 is smaller than the diameter of the perspective hole 1200, and the outer ring diameter of the flange 1600 is larger than the diameter of the perspective hole 1200. The welding method between the outer ring of the flange 1600 and the outer side surface of the air box rear plate 1000 is a closed circular full welding, and the welding method between the inner ring of the flange 1600 and the inner side surface of the air box rear plate 1000 is a closed circular full welding.

[0048] Based on this, by designing the inner ring diameter of the flange 1600 to be smaller than the diameter of the perspective hole 1200, and the outer ring diameter of the flange 1600 to be larger than the diameter of the perspective hole 1200, the outer ring of the flange 1600 is welded to the outer side surface of the air box rear plate 1000 in a closed circular full weld manner, and the inner ring of the flange 1600 is welded to the inner side surface of the air box rear plate 1000 in a closed circular full weld manner. This can increase the flatness of the surface from the air box rear plate 1000 to the flange 1600 and increase the degree of integration between the air box rear plate 1000 and the flange 1600, so that the force in the flange 1600 area is evenly distributed, and it is not easy for tiny air holes to cause air leakage in the air box structure.

[0049] Further, refer to Figure 2 and Figure 6 As shown, Figure 5It is a structural schematic diagram of the observation window provided by an embodiment of the present invention. The observation window 1100 includes a circular groove 1110 and a sealing ring 1120. The circular groove 1110 is provided on the inner wall surface of the observation window 1100. The sealing ring 1120 is embedded in the circular groove 1110. The sealing ring 1120 and the flange 1600 are tightly attached to each other.

[0050] The height of the flange on the outer ring of the circular groove 1110 is the same as the inner wall of the observation window 1100 , and the height of the flange on the inner ring of the circular groove 1110 must at least reach the wall thickness of the flange 1600 plus the wall thickness of the observation window 1100 .

[0051] Based on this, the observation window 1100 and the flange 1600 are tightly combined through the sealing ring 1120, which can maintain the good air tightness of the air box structure, maintain the flatness of the contact surface between the observation window 1100 and the flange 1600, prevent the air box rear plate 1000 from deformation, and improve the air tightness of the air box structure.

[0052] Further, refer to Figure 2 and Figure 7 As shown, Figure 7 It is a structural schematic diagram of the multi-point source distributed astigmatism lamp provided by an embodiment of the present invention. The air box rear plate 1000 also includes a second stud 1700 and a multi-point source distributed astigmatism lamp 2120. The second stud 1700 is arranged on the inner side of the air box rear plate 1000 and is located around the perspective hole 1200. The multi-point source distributed astigmatism lamp 2120 is installed on the inner side of the air box rear plate 1000 based on the second stud 1700. The center of the multi-point source distributed astigmatism lamp 2120 overlaps with the center of the perspective hole 1200, thereby providing good lighting conditions for the interior of the air box structure.

[0053] Further, refer to Figure 8 As shown, Figure 8 It is a structural schematic diagram of the lamp stand provided by an embodiment of the present invention. The multi-point source distributed astigmatism lamp 2120 includes a lamp stand 2100 and multiple astigmatism lamps 2120. The multiple astigmatism lamps 2120 are connected in parallel with each other. The lamp stand 2100 includes multiple sub-lamp stands 2110. The lamp stand 2100 forms a four-leaf clover shape structure based on the position distribution of each sub-lamp stand 2110. The center of the lamp stand 2100 is a hollow design. The sub-lamp stand 2110 includes a first lamp surface 2111 and a second lamp surface 2112. The sub-lamp stand 2110 forms a flat Z-shaped structure based on the position distribution of the first lamp surface 2111 and the second lamp surface 2112. The distance from the first lamp surface 2111 to the center of the perspective hole is smaller than the distance from the second lamp surface 2112 to the center of the perspective hole.

[0054] Based on this, by designing a multi-point source distributed astigmatism lamp 2120 with multiple astigmatism lamps 2120, and the sub-lamp holder 2110 is in the shape of a four-leaf clover, evenly installed around the perspective hole, the astigmatism lamps 2120 are installed on the sub-lamp holder 2110, thereby achieving full-area lighting of the internal environment of the gas box, which is convenient for staff to observe.

[0055] Further, refer to Figure 9 As shown, Figure 9 It is a structural schematic diagram of the explosion-proof shell provided in an embodiment of the present utility model. The multi-point source distributed astigmatism lamp 2120 also includes multiple explosion-proof shells 2130. The explosion-proof shell 2130 is arranged above the astigmatism lamp 2120. The explosion-proof shell 2130 includes multiple light-transmitting holes 2131. Each light-transmitting hole 2131 is distributed in a honeycomb shape on the surface of the explosion-proof shell 2130 and penetrates the explosion-proof shell 2130.

[0056] The diffuser lamp 2120 and the explosion-proof housing 2130 are flat in shape, and can be in the form of a flat rectangular parallelepiped, a long strip, or a round pancake, although this is not a limitation of the present invention. This helps reduce the space occupied by the diffuser lamp 2120, maximizing its distance from live components, increasing the insulation distance from high voltage to low voltage, ensuring the insulation reliability of the gas box structure, and improving heat dissipation capabilities.

[0057] In a possible implementation, the explosion-proof shell 2130 is made of a material with a ratio of 70% nylon + 30% glass fiber.

[0058] It should also be noted that by designing the multi-point source distributed astigmatism lamp 2120 with multiple explosion-proof shells 2130, the astigmatism lamp 2120410 can be protected from arcing, flashover, etc. when the live parts are working under power. The surface of the explosion-proof shell 2130 is provided with dense light-transmitting holes 2131, which allows the light source of the astigmatism lamp 2120 to pass through normally.

[0059] Among them, the first lamp surface 2111 includes multiple first mounting holes 21111, the first mounting holes 21111 are used to install the sub-lamp holder 2110 on the inner side of the air box rear plate, the second lamp surface 2112 includes multiple second mounting holes 21121 and multiple third mounting holes 21122, the second mounting holes 21121 are used to install the astigmatism lamp 2120 above the sub-lamp holder 2110, and the third mounting holes 21122 are used to install the explosion-proof shell 2130 above the sub-lamp holder 2110.

[0060] In addition, the astigmatism lamp 2120 is fixed to the lamp holder 2100 through bolts and the second mounting hole 21121 .

[0061] In one possible implementation, the astigmatism lamp 2120 is fixed to the lamp holder 2100 via a buckle and a second mounting hole 21121 . Accordingly, the height difference between the first lamp surface 2111 and the second lamp surface 2112 is the length that the buckle can extend relative to the first lamp surface 2111 .

[0062] Further, refer to Figure 10 As shown, Figure 10 It is a schematic diagram of the outer side of the front panel of the air box structure provided by an embodiment of the present invention. The air box structure also includes an air box side panel 3000 and an air box front panel 4000. The air box side panel 3000 is connected to the air box rear panel 1000, and the air box front panel 4000 is connected to the air box side panel 3000.

[0063] It should be noted that the connection between the air box front panel 4000 and the air box side panel 3000 is a full weld connection, and the connection between the air box side panel 3000 and the air box rear panel 1000 is a full weld connection, which can maximize the air tightness of the air box structure and improve the rigidity of the entire air box structure. Even in a complex and changeable outdoor environment, the air box structure is not easily damaged, which is beneficial to improving the stability of the power system.

[0064] Among them, the air box front plate 4000, the air box side plate 3000 and the air box rear plate 1000 are all stainless steel plate structures, and the thickness of the air box front plate 4000, the air box side plate 3000 and the air box rear plate 1000 are all greater than or equal to 3 mm, thereby improving the overall stiffness of the air box structure.

[0065] The embodiments described in the embodiments of the present invention are intended to more clearly illustrate the technical solutions of the embodiments of the present invention, and do not constitute a limitation on the technical solutions provided by the embodiments of the present invention. Technical personnel in this field will know that with the evolution of technology and the emergence of new application scenarios, the technical solutions provided by the embodiments of the present invention are also applicable to similar technical problems.

[0066] The terms "first", "second", "third", "fourth", etc. (if any) in the specification of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or that are inherent to these processes, methods, products or apparatus.

[0067] It should be understood that in the present invention, "at least one (item)" refers to one or more, and "plurality" refers to two or more. "And / or" is used to describe the association relationship of associated objects, indicating that three relationships may exist. For example, "A and / or B" can mean: only A exists, only B exists, and A and B exist at the same time, where A and B can be singular or plural. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship. "At least one of the following items" or similar expressions refers to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, c can be single or multiple.

[0068] The preferred embodiments of the present invention are described above with reference to the accompanying drawings, but are not intended to limit the scope of the present invention. Any modifications, equivalent substitutions, and improvements made by those skilled in the art without departing from the scope and essence of the present invention shall fall within the scope of the present invention.

Claims

1. A gas box structure of a ring main unit, characterized in that: include: An air box rear plate, the air box rear plate comprising an observation window, a perspective hole, a first reinforcing rib, and a second reinforcing rib, the perspective hole penetrating the air box rear plate, the observation window being arranged in the perspective hole, the first reinforcing rib being horizontally arranged on the outer side surface of the air box rear plate and located above or below the perspective hole, and the second reinforcing rib being vertically arranged on the outer side surface of the air box rear plate and located on the left or right side of the perspective hole; Among them, the first reinforcing rib includes a plurality of grooves, which are arranged on the upper wall surface of the first reinforcing rib, and the grooves include a plurality of first rectangular leakage holes. The second reinforcing rib includes a plurality of bosses and a plurality of boss leakage holes. The positions of the boss leakage holes correspond one-to-one to the positions of the bosses. The boss leakage holes are arranged on the upper wall surface of the second reinforcing rib, and the boss includes a plurality of meshing teeth. The meshing teeth are arranged on the side wall surface of the second reinforcing rib, and the meshing teeth include a plurality of second rectangular leakage holes and a plurality of rectangular protrusions. The side wall surface of the first reinforcing rib is meshed with the second rectangular leakage hole, and the rectangular protrusion is meshed with the first rectangular leakage hole. The boss leakage hole is used as a welding connection leakage hole after the first reinforcing rib and the second reinforcing rib are meshed with each other.

2. The air box structure according to claim 1, characterized in that: The air box rear plate further includes a third reinforcing rib, which is horizontally arranged on the inner side of the air box rear plate and located on the upper side or the lower side of the perspective hole.

3. The air box structure according to claim 1, characterized in that: The air box rear plate also includes a flange, which is nested between the observation window and the perspective hole. The center of the flange overlaps with the center of the perspective hole. A first stud is provided on the outer side of the flange. The observation window is fixed to the outer side of the flange based on the first stud. The center of the flange overlaps with the center of the perspective hole.

4. The air box structure according to claim 3, characterized in that: The wall thickness of the flange is greater than 6 mm, the inner ring diameter of the flange is smaller than the diameter of the perspective hole, the outer ring diameter of the flange is larger than the diameter of the perspective hole, the welding method between the outer ring of the flange and the outer side surface of the air box rear plate is a closed circumferential full welding, and the welding method between the inner ring of the flange and the inner side surface of the air box rear plate is a closed circumferential full welding.

5. The air box structure according to claim 3, characterized in that: The observation window includes a circular groove and a sealing ring. The circular groove is provided on the inner wall surface of the observation window. The sealing ring is embedded in the circular groove. The sealing ring and the flange are in close contact with each other.

6. The air box structure according to claim 1, characterized in that: The air box rear plate also includes a second stud and a multi-point source distributed astigmatism lamp. The second stud is arranged on the inner side of the air box rear plate and is located around the perspective hole. The multi-point source distributed astigmatism lamp is installed on the inner side of the air box rear plate based on the second stud. The center of the multi-point source distributed astigmatism lamp overlaps with the center of the perspective hole.

7. The air box structure according to claim 6, characterized in that: The multi-point source distributed astigmatism lamp includes a lamp stand and a plurality of astigmatism lamps, each of the astigmatism lamps is connected in parallel with each other, the lamp stand includes a plurality of sub-lamp stands, the lamp stand forms a four-leaf clover shape structure based on the position distribution of each of the sub-lamp stands, the center of the lamp stand is a hollow design, the sub-lamp stand includes a first lamp surface and a second lamp surface, the sub-lamp stand forms a flat Z-shaped structure based on the position distribution of the first lamp surface and the second lamp surface, the distance from the first lamp surface to the center of the circle of the perspective hole is smaller than the distance from the second lamp surface to the center of the circle of the perspective hole.

8. The air box structure according to claim 7, characterized in that: The multi-point source distributed astigmatism lamp also includes a plurality of explosion-proof shells, which are arranged above the astigmatism lamp. The explosion-proof shells include a plurality of light-transmitting holes, each of which is distributed in a honeycomb shape on the surface of the explosion-proof shell and penetrates the explosion-proof shell.

9. The air box structure according to claim 8, characterized in that: The first lamp surface includes a plurality of first mounting holes, which are used to install the sub-lamp holder on the inner side of the air box rear plate. The second lamp surface includes a plurality of second mounting holes and a plurality of third mounting holes. The second mounting holes are used to install the astigmatism lamp above the sub-lamp holder, and the third mounting holes are used to install the explosion-proof shell above the sub-lamp holder.

10. The air box structure according to claim 1, characterized in that: The air box structure also includes an air box side panel and an air box front panel, the air box side panel is connected to the air box rear panel, the air box front panel is connected to the air box side panel, the connection between the air box front panel and the air box side panel is a full welding connection, and the connection between the air box side panel and the air box rear panel is a full welding connection, wherein the air box front panel, the air box side panel and the air box rear panel are all stainless steel plate structures, and the thickness of the air box front panel, the air box side panel and the air box rear panel are all greater than or equal to 3 mm.

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