A high-voltage ring network cabinet that can be quickly disassembled and assembled

Abstract

The present invention discloses a high-voltage ring network cabinet that can be quickly disassembled and assembled, relating to the technical field of ring network cabinets, both sides of the top of the fixed base are connected to bottom side panels, the top and bottom of the bottom side panels are welded with connecting strips, the top of the bottom side panel is connected to the top side panel, connecting grooves are provided at the positions corresponding to the connecting strips on both sides of the top of the fixed base, and connecting grooves are also provided at the top and bottom of the top side panel, the connecting strips are slidably embedded in the adjacent connecting grooves, clamping openings are provided at both ends of the top of the bottom side panel and both ends of the bottom, clamping openings are also provided at both ends of the top of the fixed base and both ends of the bottom of the top side panel, and fixing boxes are movably embedded in the two adjacent clamping openings. The ring network cabinet of the present invention adopts a modular design, and all components can be quickly disassembled and assembled, reducing the time and cost required for installation and maintenance. The ring network cabinet adopts tool-free quick connection technology, so that the operator can complete the disassembly and assembly of the ring network cabinet without using additional tools.

Description

Technical Field

[0001] The present invention relates to the technical field of ring network cabinets, in particular to a high-voltage ring network cabinet that can be quickly disassembled and assembled. Background Art

[0002] A ring main unit (RMU) is a group of electrical transmission and distribution equipment installed in a metal or non-metallic insulating cabinet or made into an assembled interval ring main unit. Its core parts use load switches and fuses. It has the advantages of simple structure, small size, low price, improved power supply parameters and performance, and power supply safety. It is widely used in distribution stations and box-type substations in load centers such as urban residential areas, high-rise buildings, large public buildings, factories and enterprises.

[0003] In the Chinese patent application number CN202322117935.5, entitled "A Series High-Voltage Ring Network Cabinet with Quick Assembly and Disassembly", the side panels are inserted into the cabinet body by sliding in. After the side panels are slid into the cabinet body, no manual support is required. The fixing parts and positioning rods can be directly fixed on the back side of the cabinet body. When disassembling, only the fixing parts and auxiliary parts need to be loosened, which makes disassembly and assembly convenient and quick.

[0004] However, this patent can only quickly disassemble and assemble the side panels at the bottom of the ring network cabinet, and the back panel and the top box of the ring network cabinet cannot be disassembled and assembled. When the operator inspects the electrical components, the back panel of the ring network cabinet will hinder the operator from inspecting the electrical components, making inspection inconvenient. Moreover, if the electrical components installed inside the top box are heavy, when the side panels of the patented ring network cabinet are removed, the cabinet will easily fall over after being subjected to force, threatening the personal safety of on-site operators. Summary of the Invention

[0005] The present invention provides a high-voltage ring network cabinet that can be quickly disassembled and assembled, which can effectively solve the problem in the above-mentioned background technology that the patent can only quickly disassemble and assemble the side panels at the bottom of the ring network cabinet, and the back panel and the top box of the ring network cabinet cannot be disassembled and assembled. When the operator inspects and repairs the electrical components, the back panel of the ring network cabinet will hinder the operator from inspecting and repairing the electrical components, which is inconvenient. Moreover, if the electrical components installed inside the top box are heavy, when the side panels of the patented ring network cabinet are removed, the cabinet body is prone to tipping over after being subjected to force, threatening the personal safety of on-site operators.

[0006] To achieve the above object, the present invention provides the following technical solution: a high-voltage ring network cabinet that can be quickly disassembled and assembled, comprising a fixed base, a quick disassembly assembly component is provided on the top of the fixed base, and the quick disassembly assembly component includes a bottom side plate;

[0007] Both sides of the top of the fixed base are connected to the bottom side plates, the top and bottom of the bottom side plates are welded with connecting strips, the top of the bottom side plates is connected to the top side plates, connecting grooves are opened at the positions corresponding to the connecting strips on both sides of the top of the fixed base, and connecting grooves are also opened at the top and bottom of the top side plates, and the connecting strips are slidably embedded in the adjacent connecting grooves;

[0008] The bottom side plate has clamping openings at both ends of the top and bottom, and the fixed base has clamping openings at both ends of the top and bottom of the top side plate.

[0009] A fixing box is movably embedded in the inner sides of two adjacent clamping openings, a limiting slide bar is installed at the inner bottom of the fixing box, and both ends of the limiting slide bar are slidably connected with fixing clamps.

[0010] According to the above technical solution, a driving rack is connected to the top of the fixing clamp, and a driving gear is rotatably installed on the top inner side of the fixing box and located between the two adjacent driving racks. The driving gear is engaged with the two adjacent driving racks, and a rotating ear is connected to one end of the rotating center axis of the driving gear, and a return spring is connected between the two adjacent fixing clamps.

[0011] According to the above technical solution, the longitudinal cross-sections of the connecting strip and the connecting groove are in a "T" shape that fits each other, and the outer side of the connecting strip and the inner side of the connecting groove are both smooth surfaces;

[0012] A bottom back plate is connected between two adjacent bottom side plates, and a top back plate is connected between two adjacent top side plates. A plurality of fixing holes are evenly opened on both sides of the bottom back plate and the top back plate.

[0013] According to the above technical solution, a fixed outer cylinder is installed at the position of each fixing hole on one side of the inner side of the bottom side plate and the top side plate, a fixed head is slidably connected to the inner side of the fixed outer cylinder, a tightening spring is connected between one end of the inner side of the fixed outer cylinder and one end of the inner side of the fixed head, fixing grooves are provided on both sides of the fixed head, and a pull ear is connected to the top of the fixed head, and the pull ear passes through the inner side of the adjacent fixing hole;

[0014] Both sides of the outer sides of the bottom back plate and the top back plate are connected with U-shaped latches, and the inner sides of the U-shaped latches are movably embedded in the adjacent fixing grooves.

[0015] According to the above technical solution, a sealing top plate is connected in the middle of the tops of two adjacent top side plates, and fixing strips are welded on both sides of the bottom of the sealing top plate, and the fixing strips are movably embedded in the adjacent connecting grooves.

[0016] According to the above technical solution, two connecting holes are opened on one side of the top of the sealing top plate, and support slide bars are installed on both sides of the outer top of the top back plate. The outer sides of two adjacent support slide bars are slidably connected with lifting rods, and connectors are welded at both ends of the top of the lifting rods, and the connectors pass through the adjacent connecting holes;

[0017] A connecting spring is connected between the bottom of the lifting rod and the bottom of the supporting slide rod, a pull rod is rotatably connected in the middle of the bottom of the lifting rod, a limiting plate is welded at the bottom end of the pull rod, and a limiting rod is welded in the middle of the outer side of the top and back plates.

[0018] According to the above technical solution, an assembly bracket is installed on the top of the fixed base in the middle of the sealing top plate, and an assembly plate is fixed to the top of the assembly bracket by bolts. The assembly plate is located at the connection position between the bottom side plate and the top side plate, and an instrument door is hinged on one side of the bottom side plate and the top side plate.

[0019] According to the above technical solution, the bottom and top of the fixed base are both provided with fixed connection components, and the fixed connection components include a limiting bottom plate;

[0020] A limiting base plate is installed at the bottom of the fixed base, and limiting grooves are provided on both sides of the top of the limiting base plate. A supporting base plate is installed on the top of the limiting base plate, and locking rollers are installed at the four corners of the bottom of the supporting base plate. The locking rollers are embedded in the adjacent limiting grooves. A rotating base is rotatably installed on the top of the supporting base plate, and the rotating base is connected to the bottom of the fixed base by bolts;

[0021] An assembly frame is welded to one end of the fixed base, and an assembly block is welded to the other end of the fixed base. The assembly block is embedded in an adjacent assembly frame and connected via a connecting pin.

[0022] According to the above technical solution, limiting top cylinders are installed on both sides of the bottom of the rotating base, and limiting bottom cylinders are installed on both sides of the top of the supporting base plate. A limiting plug is slidably connected inside the limiting bottom cylinder, and a limiting spring is connected between one end inside the limiting plug and one end inside the limiting bottom cylinder. A fixing ear is welded on one side of the outside of the limiting plug, and the limiting plug is embedded in the adjacent limiting top cylinder. A guide port is opened on one side of the limiting bottom cylinder, and a fixing port is opened at the bottom of the guide port.

[0023] According to the above technical solution, an air inlet is installed on one side of the fixed base, a plurality of ventilation holes are evenly opened on the top of the assembly plate, heat dissipation holes are opened on both sides of the top of the sealing top plate, and an arc-shaped sleeve is connected to the top of the sealing top plate corresponding to the heat dissipation hole position, and the bottom of the arc-shaped sleeve is located at the top of the heat dissipation hole and is movably embedded with a dustproof net;

[0024] A connecting pipe is movably embedded inside two adjacent arc-shaped sleeves located at the top of two different sealing top plates, a series plate is welded between the two adjacent connecting pipes, a connecting port is opened at the bottom of the connecting pipe, a cooling fan is installed at one end of the connecting pipe, and the cooling fan input end is electrically connected to the external power supply output end.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. It is equipped with a quick disassembly and assembly component. Place the fixing box into the clamping port. The operator drives the drive rack to move by rotating the ear. When the fixing clamp moves to the junction between the bottom side plate and the fixed base, loosen the rotating ear and the return spring rebounds. Under the clamping of the fixing clamp, the bottom side plate and the fixed base are connected and fixed. Under the limiting support between the connecting strip and the connecting groove, the bottom side plate and the top side plate will not fall over when they are installed, and the installation is stable and convenient.

[0027] When inspecting electrical components, the lifting rod is pulled by the hand-held pull rod to disengage the connecting head from the connecting hole and remove the sealed top plate. The U-shaped pin is removed from the fixing groove and the spring is tightened to drive the fixing head to disengage from the fixing hole, so that the bottom back plate and the top back plate can be quickly removed. The driving gear is rotated by the rotating ear to disengage the two fixing clips inside the fixing box from the clamping mouth, so that the top side plate and the bottom side plate can be separated from the fixed base. After disassembly, there is no obstruction around the assembly frame and the assembly plate, which makes it convenient and quick for operators to inspect.

[0028] Align the fixing holes on the bottom side panel and the top side panel with the fixing head, pull the fixing head from top to bottom with the pull ear, insert the U-shaped pin into the fixing groove, use the tightening spring to apply tension to the U-shaped pin, and the bottom back panel and the top back panel are firmly connected to the bottom side panel and the top side panel respectively. The sealing top panel and the top side panel are connected through the cooperation of the fixing strip and the connecting groove. Pull the lifting rod with the handheld pull rod, release the pull rod, the connecting spring rebounds, and the connecting head is embedded in the connecting hole to fix the sealing top panel;

[0029] In summary, the ring main unit adopts a modular design, and all components can be quickly disassembled and assembled, reducing the time and cost required for installation and maintenance. The ring main unit adopts tool-free quick connection technology, allowing operators to complete the disassembly and assembly of the ring main unit without using additional tools.

[0030] 2. It is equipped with a fixed connection component. The limit bottom plate is provided with an assembly block and an assembly frame. The limit bottom can be assembled as needed, which is convenient and fast. The limit groove limits the movement of the locking roller. The fixed base is fixedly connected to the rotating base. During maintenance, the operator removes the limit plug from the inside of the limit top cylinder, and the operator rotates the rotating base to drive the assembly frame and the assembly plate to rotate, and cooperates with the locking roller to drive the assembly frame to move horizontally. The operator does not need to walk around the assembly frame for maintenance, making maintenance more convenient and quick;

[0031] After multiple ring network cabinets are connected in series, the locking rollers are locked and the connecting pipes are embedded in the arc-shaped sleeves on the tops of the two adjacent ring network cabinets. The connection and fixation of the series plate are used to achieve stable connection of multiple ring network cabinets. It is convenient and fast. The connecting pipes not only play a connecting role but also a heat dissipation role. When the cooling fan is started, the air pressure inside the connecting pipe decreases, and the heat generated by the operation of the electrical components increases. The external cold air passes through the air inlet, air vents, heat dissipation holes and connecting ports in turn into the connecting pipe. Under the guidance of the cooling fan, the heat is quickly discharged to avoid heat accumulation inside the ring network cabinet, thereby ensuring the stable operation of the ring network cabinet.

[0032] To sum up, after the bottom side panels and top side panels in the quick disassembly and assembly components are installed, the operator can install the bottom back panel and top back panel by rotating the rotating base in the fixed connection component. There is no need for the operator to walk around to assemble the ring network cabinet, and under the limiting support between the connecting strips and the connecting grooves, the bottom side panels and top side panels are fixed with the fixing clips. Compared with the comparative documents, the electrical components of the ring network cabinet are all installed on the assembly frame and the assembly plate, the center of gravity is stable, the ring network cabinet will not tip over, and the personal safety of on-site operators is protected. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0034] In the attached figure:

[0035] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0036] Figure 2 This is a schematic structural diagram of the quick disassembly and assembly component of the present invention;

[0037] Figure 3 Schematic diagram of the installation structure of the bottom and side panels of the present invention;

[0038] Figure 4 It is a schematic diagram of the installation structure of the fixing box of the present invention;

[0039] Figure 5 It is a schematic diagram of the installation structure of the fixed outer cylinder of the present invention;

[0040] Figure 6 This is a schematic diagram of the installation structure of the fixing clip of the present invention;

[0041] Figure 7 Schematic diagram of the installation structure of the sealing top plate of the present invention;

[0042] Figure 8 This is a schematic diagram of the installation structure of the fixed head of the present invention;

[0043] Figure 9 It is a structural schematic diagram of the fixed connection assembly of the present invention;

[0044] Figure 10 This is a schematic diagram of the installation structure of the rotating base of the present invention;

[0045] Figure 11 This is a schematic diagram of the installation structure of the limiting bottom cylinder of the present invention;

[0046] Figure 12 This is a schematic diagram of the installation structure of the limit plug of the present invention;

[0047] Figure 13 This is a schematic diagram of the installation structure of the arc-shaped sleeve of the present invention;

[0048] Numbers in the figure: 1, fixed base;

[0049] 2. Quick disassembly and assembly components; 201. Bottom side panel; 202. Connecting strip; 203. Top side panel; 204. Connecting groove; 205. Clamping port; 206. Fixing box; 207. Limiting slide bar; 208. Fixing clip; 209. Drive rack; 210. Drive gear; 211. Rotating ear; 212. Return spring; 213. Bottom back panel; 214. Top back panel; 215. Fixing hole; 216. Fixing outer cylinder; 21 7. Fixing head; 218. Take-up spring; 219. Fixing slot; 220. Pull ear; 221. U-shaped latch; 222. Sealing top plate; 223. Fixing strip; 224. Connecting hole; 225. Support slide bar; 226. Lifting rod; 227. Connecting head; 228. Connecting spring; 229. Pull rod; 230. Limit plate; 231. Limit rod; 232. Assembly frame; 233. Assembly plate; 234. Instrument door;

[0050] 3. Fixed connection assembly; 301. Limiting base plate; 302. Limiting groove; 303. Assembly frame; 304. Assembly block; 305. Locking roller; 306. Connecting pin; 307. Support base plate; 308. Rotating base; 309. Limiting top cylinder; 310. Limiting bottom cylinder; 311. Limiting plug; 312. Limiting spring; 313. Fixing ear; 314. Guide port; 315. Fixing port; 316. Air inlet; 317. Vent; 318. Heat dissipation hole; 319. Arc sleeve; 320. Dustproof net; 321. Connecting pipe; 322. Connecting port; 323. Series board; 324. Cooling fan. DETAILED DESCRIPTION

[0051] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0052] Example: Figure 1-13 As shown, the present invention provides a technical solution for a high-voltage ring network cabinet that can be quickly disassembled and assembled, including a fixed base 1, a quick disassembly assembly 2 is provided on the top of the fixed base 1, and the quick disassembly assembly 2 includes a bottom side plate 201, a connecting strip 202, a top side plate 203, a connecting groove 204, a clamping port 205, a fixing box 206, a limiting slide bar 207, a fixing clamp 208, a driving rack 209, a driving gear 210, a rotating ear 211, a return spring 212, and a bottom back plate 2 13. Top back plate 214, fixing hole 215, fixing outer cylinder 216, fixing head 217, tightening spring 218, fixing slot 219, pull ear 220, U-shaped latch 221, sealing top plate 222, fixing bar 223, connecting hole 224, supporting slide bar 225, lifting rod 226, connecting head 227, connecting spring 228, pulling rod 229, limiting plate 230, limiting rod 231, assembly frame 232, assembly plate 233, and instrument door 234;

[0053] The top of the fixed base 1 is connected to the bottom side plates 201 on both sides, and the top and bottom of the bottom side plates 201 are welded with connecting strips 202. The top of the bottom side plates 201 is connected to the top side plates 203. Connecting grooves 204 are opened at the positions corresponding to the connecting strips 202 on both sides of the top of the fixed base 1, and connecting grooves 204 are also opened at the top and bottom of the top side plates 203. The connecting strips 202 are slidably embedded in the adjacent connecting grooves 204. The longitudinal cross-sections of the connecting strips 202 and the connecting grooves 204 are "T"-shaped that fit each other. Under the limiting support between the connecting strips 202 and the connecting grooves 204, the bottom side plates 201 can be stably fixed to the top of the fixed base 1, and the top side plates 203 can also be stably fixed to the top of the bottom side plates 201. The outer side of the connecting strip 202 and the inner side of the connecting grooves 204 are both smooth surfaces, which reduces the friction resistance between the connecting strips 202 and the connecting grooves 204;

[0054] Both ends of the top and bottom of the bottom side plate 201 are provided with clamping openings 205, and both ends of the top of the fixed base 1 and both ends of the bottom of the top side plate 203 are also provided with clamping openings 205. A fixing box 206 is movably embedded in the two adjacent clamping openings 205, and a limiting slide bar 207 is installed at the bottom of the inner side of the fixing box 206. Both ends of the limiting slide bar 207 are slidably connected with a fixing clamp 208, and the top of the fixing clamp 208 is connected to a driving rack 209. A driving gear 210 is rotatably installed at the top of the inner side of the fixing box 206 and located between the two adjacent driving racks 209. The driving gear 210 is meshed with the two adjacent driving racks 209. One end of the rotation center axis of the driving gear 210 is connected to a rotating ear 211, and a return spring 212 is connected between the two adjacent fixing clamps 208;

[0055] A bottom back plate 213 is connected between two adjacent bottom side plates 201, and a top back plate 214 is connected between two adjacent top side plates 203. A number of fixing holes 215 are evenly opened on both sides of the bottom back plate 213 and the top back plate 214. A fixed outer cylinder 216 is installed at the position of each fixing hole 215 on one side of the bottom side plate 201 and the top side plate 203. A fixed head 217 is slidably connected inside the fixed outer cylinder 216. A tightening spring 218 is connected between one end of the inner part of the fixed outer cylinder 216 and one end of the inner part of the fixed head 217. Fixing grooves 219 are opened on both sides of the fixed head 217. A pull ear 220 is connected to the top of the fixed head 217. The pull ear 220 passes through the adjacent fixing holes 215. 3 and the top back plate 214 are connected to both sides of the outside with U-shaped pins 221, and the U-shaped pins 221 are movably embedded in the adjacent fixing grooves 219. When the U-shaped pins 221 are inserted into the fixing grooves 219 on both sides of the fixing head 217, the tightening springs 218 are in a tightened state. The tightening springs 218 apply tension to the U-shaped pins 221. Under the tension of the tightening springs 218, the bottom back plate 213 and the top back plate 214 can be firmly connected to the bottom side plate 201 and the top side plate 203 respectively. When the U-shaped pins 221 are removed from the fixing grooves 219, the tightening springs 218 can drive the fixing head 217 to disengage from the fixing hole 215. At this time, the bottom back plate 213 and the top back plate 214 can be removed;

[0056] The top of the two adjacent top side panels 203 is connected with a sealing top plate 222 in the middle, and the bottom of the sealing top panel 222 is welded with fixing strips 223 on both sides. The fixing strips 223 are movably embedded in the adjacent connecting grooves 204. The fixing strips 223 have the same specifications as the connecting strips 202. The sealing top panel 222 and the top side panels 203 are connected by the cooperation of the fixing strips 223 and the connecting grooves 204, which is convenient for installation and disassembly of the sealing top panel 222. Two connecting holes 224 are provided on one side of the top of the sealing top panel 222. Support slide bars 225 are installed on both sides of the top outside of the top back panel 214. The outer sides of the two adjacent support slide bars 225 are slidably connected with lifting rods 226. Connecting heads 227 are welded at both ends of the top of the lifting rod 226. The connecting heads 227 pass through the adjacent connecting holes 224. A connecting spring 228 is connected between the bottom of the lifting rod 226 and the bottom of the support slide bar 225. When the top plate 222 is installed, the pull rod 229 is rotated to disengage the limit plate 230 from the limit rod 231, and the connecting spring 228 rebounds, and the connecting head 227 can be embedded in the connecting hole 224 to fix the sealing top plate 222;

[0057] An assembly rack 232 is installed on the top of the fixed base 1 in the middle of the sealing top plate 222. An assembly plate 233 is fixed to the top of the assembly rack 232 by bolts. Various electrical components are installed on the assembly rack 232 and the assembly plate 233. When inspecting the electrical components, the bottom side plate 201, the top side plate 203, the bottom back plate 213, the top back plate 214 and the sealing top plate 222 are removed. The electrical components installed on the assembly rack 232 and the assembly plate 233 are unobstructed on all sides, making inspection convenient and quick. The assembly plate 233 is located at the connection position between the bottom side plate 201 and the top side plate 203. An instrument door 234 is hinged on one side of the bottom side plate 201 and the top side plate 203.

[0058] The fixed base 1 is provided with a fixed connection assembly 3 at the bottom and top, and the fixed connection assembly 3 includes a limiting base plate 301, a limiting groove 302, an assembly frame 303, an assembly block 304, a locking roller 305, a connecting pin 306, a supporting base plate 307, a rotating base 308, a limiting top cylinder 309, a limiting bottom cylinder 310, a limiting plug 311, a limiting spring 312, a fixing ear 313, a guide port 314, a fixing port 315, an air inlet 316, a vent 317, a heat dissipation hole 318, an arc sleeve 319, a dust screen 320, a connecting pipe 321, a communication port 322, a series connection plate 323 and a heat dissipation fan 324;

[0059] A limiting base plate 301 is installed at the bottom of the fixed base 1, and limiting grooves 302 are provided on both sides of the top of the limiting base plate 301. A supporting base plate 307 is installed on the top of the limiting base plate 301, and locking rollers 305 are installed at the four corners of the bottom of the supporting base plate 307. The locking rollers 305 are embedded in the adjacent limiting grooves 302. An assembly frame 303 is welded at one end of the fixed base 1, and an assembly block 304 is welded at the other end of the fixed base 1. The assembly block 304 is embedded in the adjacent assembly frame 303 and connected by a connecting pin 306. When installing multiple limiting base plates 301, the assembly block 304 is inserted into the assembly frame 303. The limiting base plates 301 can be connected and fixed in sequence by using the connecting pin 306, which is convenient for disassembly and installation. A rotating base 308 is rotatably installed on the top of the supporting base plate 307, and the rotating base 308 is connected to the bottom of the fixed base 1 by bolts;

[0060] An air inlet 316 is installed on one side of the fixed base 1, a number of ventilation holes 317 are evenly opened on the top of the assembly plate 233, and heat dissipation holes 318 are opened on both sides of the top of the sealing top plate 222. An arc-shaped sleeve 319 is connected to the position of the heat dissipation hole 318 on the top of the sealing top plate 222. The bottom of the arc-shaped sleeve 319 is located at the top of the heat dissipation hole 318 and a dustproof net 320 is movably embedded in it. A connecting pipe 321 is movably embedded in the two adjacent arc-shaped sleeves 319 on the top of two different sealing top plates 222. A series plate 323 is welded between the tubes 321. A connecting port 322 is provided at the bottom of the connecting tube 321. A cooling fan 324 is installed at one end of the connecting tube 321. The input end of the cooling fan 324 is electrically connected to the output end of the external power supply. Heat generated by the operation of the electrical components rises and passes through the vents 317, the heat dissipation holes 318, and the connecting port 322 into the connecting tube 321. Under the guidance of the cooling fan 324, the heat is quickly discharged, preventing heat accumulation inside the ring main unit. The dust screen 320 can isolate external dust.

[0061] A limit top cylinder 309 is installed on both sides of the bottom of the rotating base 308, and a limit bottom cylinder 310 is installed on both sides of the top of the supporting base plate 307. The limit bottom cylinder 310 is slidably connected to the limit plug 311. A limit spring 312 is connected between one end of the limit plug 311 and one end of the limit bottom cylinder 310. A fixing ear 313 is welded on one side of the limit plug 311. The limit plug 311 is embedded in the adjacent limit top cylinder 309. A guide port 314 is opened on one side of the limit bottom cylinder 310, and a fixing port 315 is opened at the bottom of the guide port 314. The limit plug 311 is inserted into the limit top cylinder 309. When inside, the rotating base 308 can be limited so that the rotating base 308 cannot rotate. The operator pulls the fixing ear 313 down along the guide opening 314, the limiting spring 312 is compressed, and the rotating fixing ear 313 enters the fixing opening 315. The fixing opening 315 limits the fixing ear 313 so that the limiting plug 311 cannot rebound. At this time, the limiting plug 311 is separated from the limiting top cylinder 309, and the rotating base 308 can be rotated. When repairing the electrical components inside the ring network cabinet, rotating the rotating base 308 can drive the assembly frame 232 and the assembly plate 233 to rotate, making maintenance more convenient.

[0062] The working principle and use process of the present invention are as follows: during assembly, a corresponding number of limit base plates 301 are installed according to the number of single ring network cabinets to be installed. When multiple limit base plates 301 are installed, the assembly block 304 is inserted into the assembly frame 303, and the limit base plates 301 are connected and fixed in sequence using the connecting pins 306. After the connection and fixation, the rotating base 308 is pushed to move the locking roller 305 into the limit groove 302. The limit groove 302 limits the movement of the locking roller 305. The fixed base 1 and the rotating base 308 are fixedly connected using bolts. At this time, the fixing ear 313 is located inside the fixing port 315. The assembly frame 232 and the assembly plate 233 are installed inside the fixed base 1, and the corresponding electrical components are installed on the assembly frame 232 and the assembly plate 233.

[0063] Next, insert the connecting strip 202 at the bottom of the bottom side plate 201 into the connecting groove 204 on the rotating base 308. After the bottom side plate 201 is inserted, put the fixing box 206 into the clamping opening 205 between the bottom side plate 201 and the fixed base 1. The operator holds the rotating ear 211 and rotates the driving gear 210. The driving gear 210 drives the driving rack 209 to move. The two fixing clips 208 inside the fixing box 206 move closer to each other along the limiting slide bar 207. When the fixing clips 208 move When the bottom side plate 201 and the fixed base 1 are joined together, the rotating ear 211 is released, the return spring 212 rebounds, and the bottom side plate 201 and the fixed base 1 are connected and fixed under the clamping of the fixing clamp 208. Subsequently, the top side plate 203 is connected to the bottom side plate 201 by using the cooperation of the connecting strip 202 and the connecting groove 204. The fixing box 206 is then placed inside the clamping opening 205 and the above operation is repeated to fix the bottom side plate 201 and the top side plate 203 together.

[0064] The longitudinal cross-section of the connecting strip 202 and the connecting groove 204 is a "T" shape that fits each other. Under the limiting support between the connecting strip 202 and the connecting groove 204, the bottom side plate 201 can be stably fixed on the top of the fixed base 1, and the top side plate 203 can also be stably fixed on the top of the bottom side plate 201. When the bottom side plate 201 and the top side plate 203 are installed, the bottom side plate 201 and the top side plate 203 will not fall over, and the installation is stable and convenient.

[0065] After the bottom side plate 201 and the top side plate 203 are installed, the pull ear 220 is turned toward the operator by rotating the rotating base 308, which facilitates the operator to install the bottom back plate 213 and the top back plate 214. It is convenient and quick. The fixing holes 215 on the bottom side plate 201 and the top side plate 203 are aligned with the fixing head 217. The pull ear 220 is held from top to bottom to pull the fixing head 217, the spring 218 is tightened and extended, and the U-shaped pin 221 is inserted into the fixing groove. 219, after the U-shaped latch 221 is inserted into the corresponding fixing groove 219, the pull ear 220 is released, the tightening spring 218 rebounds, and the tightening spring 218 applies tension to the U-shaped latch 221. Under the tension of the tightening spring 218, the bottom back plate 213 and the top back plate 214 are firmly connected to the bottom side plate 201 and the top side plate 203 respectively, without the need for operators to move around to assemble the ring main unit. After the installation of the bottom back plate 213 and the top back plate 214 is completed;

[0066] Then, the sealing top plate 222 and the top side plate 203 are connected by the cooperation of the fixing strip 223 and the connecting groove 204. The hand-held pull rod 229 pulls the lifting rod 226, the connecting spring 228 is compressed, and then the pull rod 229 is released, the connecting spring 228 rebounds, and the connecting head 227 is embedded in the connecting hole 224 to fix the sealing top plate 222, completing the installation of a single ring network cabinet. After the installation is completed, the rotating base 308 is rotated to make the instrument door 234 face the operator. The operator toggles the fixing ear 313 to disengage the fixing port 315, the limit spring 312 rebounds, and the limit plug 311 rises along the limit bottom cylinder 310. The limit plug 311 is inserted into the corresponding limit top cylinder 309 to fix the rotating base 308 to prevent the ring network cabinet from rotating during use. During the assembly process of the entire single ring network cabinet, the operator can complete the assembly without using additional tools. It is convenient and quick. Repeat the above steps to complete the assembly of multiple ring network cabinets.

[0067] After the assembly of multiple ring network cabinets is completed, the support base plate 307 is pushed to move along the limit groove 302, so that the multiple ring network cabinets are connected in series. After the multiple ring network cabinets are connected in series, the locking roller 305 is locked, and then the connecting pipe 321 is embedded in the arc-shaped sleeve 319 on the top of the two adjacent ring network cabinets, and the connection and fixation of the series plate 323 are used to achieve a stable connection of multiple ring network cabinets. It is convenient and fast. The connecting pipe 321 plays a connecting role and also a heat dissipation role. The heat dissipation fan 324 is started, the air pressure inside the connecting pipe 321 is reduced, and the heat generated by the operation of the electrical components increases. The external cold air passes through the air inlet 316, the vent 317, the heat dissipation hole 318 and the connecting port 322 in turn into the connecting pipe 321. Under the guidance of the heat dissipation fan 324, the heat is quickly discharged, avoiding heat accumulation inside the ring network cabinet, thereby ensuring the stable operation of the ring network cabinet;

[0068] When inspecting electrical components, the operator separates multiple ring network cabinets. The operator first disassembles the sealing top plate 222. During disassembly, the handheld pull rod 229 pulls the lifting rod 226, and the lifting rod 226 descends along the support slide 225, the connecting spring 228 is compressed, and the pull rod 229 is rotated to move the limit plate 230 to the bottom of the limit rod 231. The pull rod 229 is released, the connecting spring 228 rebounds, and the limit plate 230 is blocked by the limit rod 231. At this time, the connecting head 227 is disengaged from the connecting hole 224, and the sealing top plate 222 is disassembled. After the sealing top plate 222 is disassembled, the U-shaped pin 221 is moved out from the inside of the fixing groove 219, and the tightening spring 218 drives the fixing head 217 to disengage from the fixing hole 215. At this time, the bottom back plate 213 and the top back plate The plate 214 can be quickly removed. Then, the operator holds the rotating ear 211 and rotates the driving gear 210. The two fixing clips 208 inside the fixed box 206 are disengaged from the clamping mouth 205. The operator takes out the fixed box 206 between the fixed base 1 and the bottom side plate 201. Then, the top side plate 203 and the bottom side plate 201 are pulled out and separated from the fixed base 1. At this time, the assembly frame 232 and the assembly plate 233 are unobstructed on all sides, which makes it convenient and quick for the operator to perform maintenance. During maintenance, the operator removes the limit plug 311 from the inside of the limit top cylinder 309, and the operator rotates the rotating base 308 to drive the assembly frame 232 and the assembly plate 233 to rotate. The operator does not need to walk around the assembly frame 232 for maintenance, making maintenance more convenient and quick.

[0069] The ring main unit adopts a modular design, and all components can be quickly disassembled and assembled, reducing the time and cost required for installation and maintenance. The ring main unit adopts tool-free quick connection technology, so that operators can complete the disassembly and assembly of the ring main unit without using additional tools. In addition, under the limiting support between the connecting bar 202 and the connecting groove 204, the bottom side plate 201 and the top side plate 203 are fixed with the fixing clamp 208. The heavier electrical components are all installed on the assembly frame 232 and the assembly plate 233. The assembly frame 232 has a uniform structure. When the ring main unit is disassembled, the center of gravity of the overall ring main unit changes little. Compared with the existing ring main unit, the center of gravity is stable, and the bottom side plate 201 and the top side plate 203 will not tip over, protecting the personal safety of on-site operators.

[0070] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A high-voltage ring network cabinet that can be quickly disassembled and assembled, comprising a fixed base (1), characterized in that: A quick disassembly assembly (2) is provided on the top of the fixed base (1), and the quick disassembly assembly (2) includes a bottom side plate (201); Both sides of the top of the fixed base (1) are connected to bottom side plates (201), the top and bottom of the bottom side plates (201) are welded with connecting strips (202), the top of the bottom side plates (201) is connected to the top side plates (203), connecting grooves (204) are opened at positions corresponding to the connecting strips (202) on both sides of the top of the fixed base (1), and connecting grooves (204) are also opened at the top and bottom of the top side plates (203), and the connecting strips (202) are slidably embedded in the adjacent connecting grooves (204); The bottom side plate (201) is provided with clamping openings (205) at both ends of the top and bottom, and the fixed base (1) is provided with clamping openings (205) at both ends of the top and bottom of the top side plate (203). A fixing box (206) is movably embedded in the interior of two adjacent clamping openings (205), a limiting slide bar (207) is installed at the bottom of the inner side of the fixing box (206), and both ends of the limiting slide bar (207) are slidably connected to a fixing clamp (208); A return spring (212) is connected between two adjacent fixing clamps (208). When the fixing clamp (208) moves to the junction between the bottom side plate (201) and the fixed base (1), the rotating ear (211) is released, and the return spring (212) rebounds, and the bottom side plate (201) and the fixed base (1) are connected and fixed under the clamping of the fixing clamp (208); A bottom back plate (213) is connected between two adjacent bottom side plates (201), and a top back plate (214) is connected between two adjacent top side plates (203). A plurality of fixing holes (215) are evenly formed on both sides of the bottom back plate (213) and the top back plate (214); A fixed outer cylinder (216) is installed at a position corresponding to each fixing hole (215) on one side of the inner side of the bottom side plate (201) and the top side plate (203); a fixed head (217) is slidably connected to the inner side of the fixed outer cylinder (216); a tightening spring (218) is connected between one end of the inner side of the fixed outer cylinder (216) and one end of the inner side of the fixed head (217); fixing grooves (219) are provided on both sides of the fixed head (217); a pull ear (220) is connected to the top end of the fixed head (217); and the pull ear (220) passes through the inner side of the adjacent fixing hole (215); Both sides of the bottom back plate (213) and the top back plate (214) are connected to U-shaped latches (221), and the U-shaped latches (221) are movably embedded in adjacent fixing slots (219); A sealing top plate (222) is connected in the middle of the tops of two adjacent top side plates (203), and fixing strips (223) are welded on both sides of the bottom of the sealing top plate (222), and the fixing strips (223) are movably embedded in the adjacent connecting grooves (204).

2. The high-voltage ring network cabinet that can be quickly disassembled and assembled according to claim 1 is characterized in that: The top of the fixing clamp (208) is connected to a driving rack (209), and a driving gear (210) is rotatably installed at the top of the inner side of the fixing box (206) and located between two adjacent driving racks (209). The driving gear (210) is meshed with the two adjacent driving racks (209), and one end of the rotating central axis of the driving gear (210) is connected to a rotating ear (211).

3. The high-voltage ring network cabinet that can be quickly disassembled and assembled according to claim 1 is characterized in that: The longitudinal cross-sections of the connecting strip (202) and the connecting groove (204) are in a "T" shape that fits in with each other, and the outer side of the connecting strip (202) and the inner side of the connecting groove (204) are both smooth surfaces.

4. The high-voltage ring network cabinet that can be quickly disassembled and assembled according to claim 2 is characterized in that: Two connection holes (224) are provided on one side of the top of the sealing top plate (222), support slide bars (225) are installed on both sides of the outer top of the top back plate (214), and lifting rods (226) are slidably connected to the outer sides of two adjacent support slide bars (225), and connectors (227) are welded at both ends of the top of the lifting rods (226), and the connectors (227) pass through the interior of the adjacent connection holes (224); A connecting spring (228) is connected between the bottom of the lifting rod (226) and the bottom of the supporting slide rod (225); a pull rod (229) is rotatably connected in the middle of the bottom of the lifting rod (226); a limiting plate (230) is welded to the bottom end of the pull rod (229); and a limiting rod (231) is welded in the middle of the outer side of the top and back plates (214).

5. The high-voltage ring network cabinet that can be quickly disassembled and assembled according to claim 4 is characterized in that: An assembly rack (232) is installed on the top of the fixed base (1) in the middle of the sealing top plate (222), and an assembly plate (233) is fixed to the top of the assembly rack (232) by bolts. The assembly plate (233) is located at the connection position between the bottom side plate (201) and the top side plate (203), and an instrument door (234) is hinged on one side of the bottom side plate (201) and the top side plate (203).

6. The high-voltage ring main unit that can be quickly disassembled and assembled according to claim 5, characterized in that: The bottom and top of the fixed base (1) are both provided with fixed connection components (3), and the fixed connection components (3) include a limiting bottom plate (301); A limiting base plate (301) is installed at the bottom of the fixed base (1), limiting grooves (302) are provided on both sides of the top of the limiting base plate (301), a supporting base plate (307) is installed on the top of the limiting base plate (301), locking rollers (305) are installed at the four corners of the bottom of the supporting base plate (307), and the locking rollers (305) are embedded in the adjacent limiting grooves (302). A rotating base (308) is rotatably installed on the top of the supporting base plate (307), and the rotating base (308) is connected to the bottom of the fixed base (1) by bolts; An assembly frame (303) is welded to one end of the fixed base (1), and an assembly block (304) is welded to the other end of the fixed base (1). The assembly block (304) is embedded in an adjacent assembly frame (303) and connected via a connecting pin (306).

7. The high-voltage ring network cabinet that can be quickly disassembled and assembled according to claim 6, characterized in that: Limiting top cylinders (309) are installed on both sides of the bottom of the rotating base (308), and limiting bottom cylinders (310) are installed on both sides of the top of the supporting base plate (307). A limiting plug (311) is slidably connected inside the limiting bottom cylinder (310), and a limiting spring (312) is connected between one end inside the limiting plug (311) and one end inside the limiting bottom cylinder (310). A fixing ear (313) is welded on one side of the outside of the limiting plug (311). The limiting plug (311) is embedded in the adjacent limiting top cylinder (309). A guide opening (314) is opened on one side of the limiting bottom cylinder (310), and a fixing opening (315) is opened at the bottom of the guide opening (314).

8. The high-voltage ring main unit that can be quickly disassembled and assembled according to claim 6, characterized in that: An air inlet (316) is installed on one side of the fixed base (1), a plurality of ventilation holes (317) are evenly opened on the top of the assembly plate (233), heat dissipation holes (318) are opened on both sides of the top of the sealing top plate (222), an arc-shaped sleeve (319) is connected to the position of the heat dissipation hole (318) on the top of the sealing top plate (222), and a dustproof net (320) is movably embedded in the bottom of the arc-shaped sleeve (319) at the top of the heat dissipation hole (318); A connecting pipe (321) is movably embedded in the interior of two adjacent arc-shaped sleeves (319) located at the top of two different sealing top plates (222), and a series plate (323) is welded between the two adjacent connecting pipes (321). A connecting port (322) is provided at the bottom of the connecting pipe (321), and a heat dissipation fan (324) is installed at one end of the connecting pipe (321), and the input end of the heat dissipation fan (324) is electrically connected to the output end of the external power supply.

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