Rainproof indoor power distribution cabinet

Abstract

The invention relates to the technical field of power distribution cabinets, in particular to a rainproof indoor power distribution cabinet which comprises a body and a rainproof unit, it is ensured that no dead angle exists for rainwater to enter through cooperation of a protective film piece and an auxiliary water retaining piece, the power distribution cabinet is protected, meanwhile, the protective film piece and the auxiliary water retaining piece are not tightly attached to the body, and the rainproof unit is arranged on the body. When the weather environment is in a sunny day, the auxiliary water retaining piece and the protective film piece can be opened, and when the power distribution cabinet needs to be opened, only the protective film piece on the front side needs to be opened, so that the power distribution cabinet can be quickly recovered to a protective state; and the unused transparent film I can be quickly replaced by rotating the winding rod I or the winding rod II on the winding mechanism, so that the purpose of ensuring the protection quality of the protective film piece is achieved.

Description

Technical Field

[0001] This invention relates to the field of power distribution cabinet technology, specifically a rainproof indoor power distribution cabinet. Background Art

[0002] A power distribution cabinet is the control center of an electric motor. It is divided into power distribution cabinets, lighting distribution cabinets, metering cabinets, and other terminal equipment in the power distribution system. It is used to distribute electrical energy and provide protection, monitoring and control for the load. It can be used in different environments. Here, we mainly refer to power distribution cabinets used on offshore oil production platforms.

[0003] Traditional rainproof distribution cabinets mainly feature a sloping eaves on top to divert rainwater, but this does not protect the cabinet surface from rain. The marine environment is complex and windy, resulting in unpredictable angles of rainwater flow. Consequently, the cabinet surface is easily exposed to large amounts of rainwater, which corrodes over time, affecting its normal operation. Summary of the Invention

[0004] In view of the above problems, embodiments of this application provide a rainproof indoor distribution cabinet to solve the technical problem that the surface of the distribution cabinet in the related art cannot provide rain protection. To achieve the above objective, embodiments of this application provide the following technical solution.

[0005] An embodiment of this application discloses a rainproof indoor power distribution cabinet, comprising a cabinet body and a rainproof unit. The rainproof unit is disposed on the cabinet body for rain protection. The rainproof unit includes a winding component, which is fixedly installed on the upper end of the cabinet body and a limiting base is fixedly installed on the lower end of the cabinet body. Protective film components are provided on all four sides of the winding component, and auxiliary water-blocking components are provided on the limiting base. Limiting frames are provided at the four corners of the cabinet body, and the limiting frames are connected to the protective film components by a sliding fit. The protective film components include a transparent film and connecting components. The transparent film is fixedly installed on all four sides of the winding component, and multiple end-to-end connecting components are provided at the lower end of the transparent film. The connecting components are composed of a rectangular steel shell and a first film connecting component connected end-to-end. The transparent film and the adjacent rectangular steel shell... The shells are fixedly connected. The bottommost No. 1 film connector is provided with a positioning steel shell at its lower end. Guide limiting blocks are fixedly installed on both the rectangular steel shell and the positioning steel shell facing the limiting frame. The No. 1 film connector includes an unfolding column. The unfolding column is rotatably connected to the middle of the inner end of the uppermost rectangular steel shell. A transparent film is fixedly wound on the unfolding column. The upper inner ends of the remaining rectangular steel shells are rotatably connected to a winding rod. The ends of all the transparent films pass through the corresponding rectangular steel shells and are fixedly connected to the winding rod. The lower inner ends of the remaining rectangular steel shells are rotatably connected to an unfolding column two. The middle of the positioning steel shell is rotatably connected to a winding rod two. The winding rod two is fixedly connected to the adjacent unfolding column two through a transparent film. The unfolding column two on the upper and lower adjacent rectangular steel shells is fixedly connected to the winding rod one through a transparent film.

[0006] According to an embodiment of the present invention, the winding component includes a water guide cover plate, and winding columns are rotatably connected to the inner four sides of the water guide cover plate. The upper end of the transparent film is wound and fixed to the outer wall of the winding column. An installation column groove is opened in the middle of the winding column. A spiral spring is fixedly installed in the installation column groove. A positioning rod is fixedly installed in the middle of the spiral spring. The positioning rod extends along the central axis of the installation column groove and is fixedly connected to the water guide cover plate. The arc-shaped side wall of the winding column is fixedly connected to the transparent film. A U-shaped groove is opened at the lower end of the water guide cover plate. An inclined groove is opened at the lower end of the water guide cover plate and in front of the U-shaped groove.

[0007] According to an embodiment of the present invention, the limiting base includes a rectangular base plate. The rectangular base plate is fixedly installed at the lower end of the power distribution cabinet body. A second U-shaped groove is provided at the upper end of the rectangular base plate. Drainage grooves are uniformly provided on the rectangular base plate at the outer end of the second U-shaped groove. An inclined groove is provided at the upper end of the rectangular base plate at the front side of the second U-shaped groove. The inclined groove gradually slopes towards the rear from left to right, and the right end of the inclined groove is connected to the front side of the second U-shaped groove. An inclined groove is corresponding to the inclined groove, and the right end of the inclined groove is connected to the front side of the first U-shaped groove.

[0008] According to an embodiment of the present invention, the upper end of the rectangular base plate and the four corners inside the U-shaped groove are rotatably connected to guide rotating columns. The upper end of the rectangular base plate and the middle of the front side are rotatably connected to the right front guide rotating column. The arc-shaped sidewall of the right front guide rotating column is fixedly connected to the auxiliary water-blocking component. A fixing column is fixedly installed at the upper end of the rectangular base plate and the left front corner. The upper end of the rectangular base plate and the area directly below the winding column are provided with mating grooves, and the positioning steel shell and the mating grooves on the rectangular base plate are mated.

[0009] According to an embodiment of the present invention, the auxiliary water-blocking component includes a second transparent film. The outer wall of the guide rotating column at the front right is rolled up and fixed with the second transparent film. Support components are symmetrically fixedly connected to the upper and lower ends of the second transparent film. The support components are formed by hinged support blocks that are linearly and uniformly arranged along the length direction of the second transparent film. Support rods are fixedly connected between the upper and lower opposing support components and on the side away from the center of the rectangular base plate. Guide posts are uniformly fixedly connected to the lower end of the lower support block and guide posts are uniformly fixedly connected to the upper end of the upper support block. Guide posts are slidably connected to the first U-shaped groove and to the second inclined groove. Guide posts are also slidably connected to the second U-shaped groove and to the first inclined groove. A rectangular insert plate is fixedly connected to the end of the second transparent film and the support blocks on the upper and lower sides. The rectangular insert plate cooperates with the fixed column. The second transparent film and the first transparent film are made of the same material.

[0010] According to an embodiment of the present invention, the limiting frame includes cylindrical fixing rods. Multiple cylindrical fixing rods are fixedly connected to the four corners of the power distribution cabinet body. The multiple cylindrical fixing rods at each corner are evenly arranged on the vertical plane. A rectangular guide post is fixedly connected to the end of the multiple cylindrical fixing rods at each corner. Guide limiting grooves are opened on both ends of the rectangular guide post facing the protective membrane. The guide limiting block is connected to the adjacent guide limiting groove in a sliding fit manner.

[0011] According to an embodiment of the present invention, a rectangular fixing groove is provided at the right end of the fixing column, and slots are symmetrically and evenly provided at the front and rear ends of the rectangular fixing groove. Inserts are connected to the slots in a sliding fit manner. Movable plates are symmetrically connected to the front and rear of the fixing column in a sliding fit manner. The movable plates are fixedly connected to the adjacent inserts. A bidirectional screw is rotatably connected to the middle of the fixing column. The front and rear sides of the bidirectional screw are respectively connected to the adjacent movable plates in a threaded connection manner.

[0012] According to an embodiment of the present invention, ratchet wheels are fixedly installed on the left ends of the first unfolding column, the first winding rod, the second unfolding column, and the second winding rod on the front side. The inner ends of the rectangular steel shell and the positioning steel shell, located above the ratchet wheels, are rotatably connected to pawls that cooperate with the corresponding ratchet wheels. The left ends of the ratchet wheels on the first winding rod and the second winding rod on the front side are fixedly installed with bevel gears. The inner ends of the rectangular steel shell and the positioning steel shell, located in front of the bevel gears, are rotatably connected to bevel gears. The bevel gears mesh with the corresponding bevel gears. The front ends of the bevel gears are fixedly connected to control handles. The internal structures of the rectangular steel shells and the positioning steel shells on the other three sides are the same as those of the rectangular steel shells and the positioning steel shells on the front side.

[0013] According to an embodiment of the present invention, rectangular grooves are provided on both sides of the inner end of the mating groove, and cylindrical springs are uniformly fixedly installed in the rectangular grooves. The ends of the cylindrical springs on the same side are jointly fixedly connected to a semi-cylinder, and arc-shaped mating grooves that mate with the semi-cylinders are provided on both sides of the positioning steel shell.

[0014] According to an embodiment of the present invention, a fixing groove is provided in the middle of the front side of the positioning steel shell, a return spring is fixedly installed at the bottom of the fixing groove, a right angle rod is fixedly installed at the upper end of the return spring, the right angle rod is connected to the positioning steel shell in a sliding fit, a pressing block is fixedly installed at the lower end of the right angle rod, the lower outer end of the pressing block is rounded, the pressing block is connected to the positioning steel shell in a sliding fit, and the bottom width of the pressing block is greater than the shortest distance between the front and rear semi-cylinders.

[0015] As can be seen from the above technical solutions, the present invention has the following advantages:

[0016] 1. In this invention, the protective membrane and the auxiliary water-blocking component work together to ensure that there are no blind spots for rainwater to enter, thereby protecting the main body of the power distribution cabinet. At the same time, neither the protective membrane nor the auxiliary water-blocking component is in close contact with the main body of the power distribution cabinet to avoid affecting its heat dissipation. When the weather is sunny, the auxiliary water-blocking component and the protective membrane can be opened. When it is necessary to open the main body of the power distribution cabinet, only the front protective membrane needs to be opened, which makes it easy to quickly restore it to the protective state. When the transparent film 1 ages or is damaged, the unused transparent film 1 can be quickly replaced by rotating the winding rod 1 or winding rod 2 on it, so as to ensure the protective quality of the protective membrane.

[0017] 2. In this invention, the protective film is wound up by rotating the winding column driven by the spiral spring, and the rainwater flowing into the inclined groove 2 and the U-shaped groove 2 is discharged from the rectangular bottom plate through the drainage groove, preventing rainwater from overflowing and entering the interior of the auxiliary water-blocking component.

[0018] 3. In this invention, a second transparent film protects the outer perimeter of the protective film to prevent rainwater from entering through the connection of the protective film and being squeezed out of the power distribution cabinet body. The windproof performance of the second transparent film is increased by the cooperation of the support column and the support rod. The movement path of the second transparent film is guided and limited by the first guide column and the second guide column. The end of the second transparent film is fixed by the cooperation between the rectangular insert plate and the fixed column.

[0019] 4. In this invention, the guide limiting groove on the rectangular guide post limits and guides the guide limiting block, ensuring that the contact ends of the adjacent rectangular steel shells and the positioning steel shells are aligned, so as to reduce the gap between adjacent protective membranes.

[0020] In addition to the technical problems solved by the embodiments of this application, the technical features constituting the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions described above, other technical problems that can be solved by the embodiments of this application based on a rainproof indoor distribution cabinet, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further described in detail in the specific implementation. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0022] Figure 1 A front-view stereoscopic structure diagram provided according to an embodiment of the present invention is shown.

[0023] Figure 2 A front-view perspective three-dimensional structural diagram of a protective membrane element provided according to an embodiment of the present invention is shown.

[0024] Figure 3 This diagram shows a front perspective three-dimensional structure of the present invention, which removes the winding member, the front protective film, and the auxiliary water-blocking member.

[0025] Figure 4 A schematic diagram of the left sectional planar structure provided according to an embodiment of the present invention is shown.

[0026] Figure 5 It shows Figure 4 A local enlarged view of point M.

[0027] Figure 6 It shows Figure 4 A magnified view of a portion of point G.

[0028] Figure 7 A top-view sectional planar structural diagram provided according to an embodiment of the present invention is shown.

[0029] Figure 8 It shows Figure 7 A magnified view of a portion of point F.

[0030] Figure 9 A schematic diagram of the front cross-sectional planar structure of the No. 1 thin-film connector is shown.

[0031] Figure 10 A top-view sectional planar structural diagram of the unfolded column is shown.

[0032] The above figures include the following reference numerals:

[0033] 1. Distribution cabinet body; 2. Rainproof unit; 21. Rewinding component; 211. Water guide cover; 212. Rewinding column; 213. Mounting column groove; 214. Spiral spring; 215. Positioning rod; 216. Anti-interference groove; 217. U-shaped groove one; 218. Inclined groove one; 22. Limiting base; 221. Rectangular base plate; 2211. Guide rotating column; 2213. Fixed column; 2214. Mating groove; 22141. Rectangular groove; 22142. Cylindrical spring; 22143. Semi-cylindrical; 2215. Rectangular fixing groove; 2216. Slot; 2217. Insert column; 2218. Moving plate; 2219. Bidirectional screw; 222. U-shaped groove two; 223. Drainage groove; 224. Inclined groove two; 23. Protective membrane component; 231. Transparent membrane; 23 3. Rectangular steel shell; 232. No. 1 membrane connector; 2321. Unfolding column one; 23211. Ratchet; 23212. Pawl; 23213. Bevel gear one; 23214. Bevel gear two; 23215. Control handle; 2322. Transparent membrane one; 2323. Rewinding rod one; 2324. Unfolding column two; 2325. Rewinding rod two; 235. Positioning steel shell; 2351. Return spring; 2352. Right angle rod; 2353. Extrusion block; 236. Guide limit block; 24. Auxiliary water-blocking component; 241. Transparent membrane two; 242. Support block; 243. Support rod; 244. Guide column one; 245. Guide column two; 246. Rectangular insert plate; 25. Limiting frame; 251. Cylindrical fixing rod; 252. Rectangular guide column; 253. Guide limit groove. Detailed Implementation

[0034] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0035] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 7 A rainproof indoor power distribution cabinet includes a cabinet body 1 and a rainproof unit 2. The rainproof unit 2 is installed on the cabinet body 1 to protect it from rain. The rainproof unit 2 includes a winding component 21. The winding component 21 is fixedly installed on the upper end of the cabinet body 1, and a limiting base 22 is fixedly installed on the lower end of the cabinet body 1. Protective film components 23 are provided around the winding component 21. Auxiliary water-blocking components 24 are provided on the limiting base 22. Limiting frames 25 are provided at the four corners of the cabinet body 1. The limiting frames 25 and the protective film components 23 are slidably engaged. The protective film 23 includes a transparent film 231 and connecting components. The transparent film 231 is fixedly installed on all four sides of the winding component 21. Multiple connecting components are provided at the lower end of the transparent film 231. The connecting components are composed of a rectangular steel shell 233 and a first film connector 232 connected end to end. The transparent film 231 is fixedly connected to the adjacent rectangular steel shell 233. A positioning steel shell 235 is provided at the lower end of the first film connector 232 at the bottom. Guide limit blocks 236 are fixedly installed on the side of the rectangular steel shell 233 and the positioning steel shell 235 facing the limit frame 25.

[0036] See Figure 4 The first film connector 232 includes an unfolding column 2321. The unfolding column 2321 is rotatably connected to the middle of the inner end of the uppermost rectangular steel shell 233. A transparent film 2322 is wrapped and fixed on the unfolding column 2321. The upper inner end of the remaining rectangular steel shells 233 is rotatably connected to a winding rod 2323, and the lower inner end of the remaining rectangular steel shells 233 is rotatably connected to an unfolding column 2324. The ends of all the transparent films 2322 pass through the corresponding rectangular steel shells 233 and are fixedly connected to the winding rod 2323. The middle of the positioning steel shell 235 is rotatably connected to a winding rod 2325. The unfolding columns 2324 on the upper and lower adjacent rectangular steel shells 233 are fixedly connected to the winding rod 2323 through the transparent film 2322. The lowermost unfolding column 2324 is fixedly connected to the winding rod 2325 through the transparent film 2322.

[0037] The protective membrane 23 is guided and limited by the limiting bracket 25. The auxiliary water-blocking component 24 is manually pulled to the left front of the limiting base 22 for positioning. With the cooperation of the protective membrane 23 and the auxiliary water-blocking component 24, there are no dead corners, and rainwater is prevented from entering the power distribution cabinet body 1, so as to protect the power distribution cabinet body 1. When the weather is sunny, the auxiliary water-blocking component 24 and the protective membrane 23 can be opened. When it is necessary to open the power distribution cabinet body 1, only the front protective membrane 23 needs to be opened, so that the protective membrane 23 can be quickly restored to the protective state.

[0038] See Figure 4 and Figure 5 The winding component 21 includes a water guide cover 211. The water guide cover 211 has symmetrically arranged slopes on its front and rear sides. Winding posts 212 are rotatably connected to the inner perimeter of the water guide cover 211. The upper end of the transparent film 231 is wound and fixed to the outer wall of the winding post 212. A mounting groove 213 is provided in the middle of the winding post 212. A spiral spring 214 is fixedly installed in the mounting groove 213. A positioning rod 215 is fixedly installed in the middle of the spiral spring 214. The positioning rod 215 extends along the central axis of the mounting groove 213 and intersects with the water guide cover 212. The water guide cover 211 is fixedly connected. The lower end of the water guide cover 211 and directly below the winding column 212 are provided with anti-interference grooves 216. The lower end of the water guide cover 211 is provided with a U-shaped groove 217. The lower end of the water guide cover 211 and the front side of the U-shaped groove 217 are provided with an inclined groove 218. When it is necessary to retract the protective membrane 23, the positioning steel shell 235 is separated from the mating groove 2214. Under the drive of the spiral spring 214, the winding column 212 rotates to retract the protective membrane 23.

[0039] See Figure 4 and Figure 7The limiting base 22 includes a rectangular base plate 221. The rectangular base plate 221 is fixedly installed on the lower end of the power distribution cabinet body 1. A U-shaped groove 222 is formed on the upper end of the rectangular base plate 221. Drainage grooves 223 are evenly formed on the rectangular base plate 221 and at the outer end of the U-shaped groove 222. An inclined groove 224 is formed on the upper end of the rectangular base plate 221 and in front of the U-shaped groove 222. The inclined groove 224 gradually slopes towards the rear from left to right, and the right end of the inclined groove 224 is connected to the front of the U-shaped groove 222. An inclined groove 218 corresponds to the inclined groove 224, and the right end of the inclined groove 218 is connected to the U-shaped groove 222. The front side of the U-shaped groove 217 is connected; the rectangular base plate 221 is installed on a platform much higher than the sea level. The auxiliary water-blocking component 24 is limited and guided by the cooperation of the inclined groove 224 and the U-shaped groove 222. When the rainwater comes into contact with the auxiliary water-blocking component 24, it flows downward into the inclined groove 224 and the U-shaped groove 222, and finally is discharged from the rectangular base plate 221 through the drainage channel 223. This avoids the accumulation of water in the inclined groove 224 and the U-shaped groove 222 for a long time, which would cause excessive water to overflow into the protective membrane 23 and eventually come into contact with the power distribution cabinet body 1, causing corrosion of the surface of the power distribution cabinet body 1 or even causing an accident.

[0040] See Figure 4 , Figure 7 and Figure 8 The rectangular base plate 221 has four rotatably connected guide rotating columns 2211 at its upper end and inside the U-shaped groove 222. The arc-shaped sidewall of the guide rotating column 2211 at the right front is fixedly connected to the auxiliary water-blocking component 24. A fixing column 2213 is fixedly installed at the upper end of the rectangular base plate 221 and at the left front corner. The upper end of the rectangular base plate 221 and directly below the winding column 212 are provided with mating grooves 2214. The positioning steel shell 235 is mated with the mating grooves 2214 on the rectangular base plate 221. The guide rotating columns 2211 guide the auxiliary water-blocking component 24, the fixing columns 2213 limit and fix the end of the auxiliary water-blocking component 24, and the mating grooves 2214 fix the bottom end of the protective membrane component 23. The positioning steel shells 235 around the perimeter are manually pulled to mate with the mating grooves 2214 on the corresponding rectangular base plate 221 for positioning.

[0041] See Figure 4 and Figure 7The auxiliary water-blocking component 24 includes a second transparent film 241. The outer wall of the guide rotating column 2211 on the right front is rolled up and fixed with the second transparent film 241. Support components are symmetrically fixed to the upper and lower ends of the second transparent film 241. The support components are formed by hinged support blocks 242 arranged linearly and evenly along the length of the second transparent film 241. Support rods 243 are fixedly connected between the upper and lower opposing support components on the side away from the center of the rectangular base plate 221. Guide posts 244 are evenly fixed to the lower end of the lower support block 242, and guide posts 245 are evenly fixed to the upper end of the upper support block 242. When the second transparent film 241 is unrolled clockwise, it sequentially passes around each guide rotating column 2211 to form a closed area. Guide posts 244 and the U-shaped groove 222, as well as guide posts 244 and the inclined groove 224, are connected by a sliding fit. Guide posts 245... The transparent film 241 is connected to the U-shaped groove 217 and the guide post 245 to the inclined groove 218 by a sliding fit. The end of the transparent film 241 is fixedly connected to the support blocks 242 on the upper and lower sides by a rectangular insert plate 246. The rectangular insert plate 246 cooperates with the fixing post 2213. The transparent film 241, the transparent film 2322 and the transparent film 231 are made of the same material. The closed area formed by the transparent film 241 protects the outer perimeter of the protective film 23, preventing rainwater from entering from the connection of the protective film 23 and contacting the power distribution cabinet body 1. The support block 242 cooperates with the support rod 243 to increase the windproof performance of the transparent film 241. The guide post 244 and the guide post 245 guide and limit the movement path of the transparent film 241. The rectangular insert plate 246 cooperates with the fixing post 2213 to fix the end of the transparent film 241.

[0042] It should be noted that multiple support blocks 242 are hinged to form a chain plate structure.

[0043] See Figure 7The limiting frame 25 includes cylindrical fixing rods 251. Multiple cylindrical fixing rods 251 are fixedly connected to each of the four corners of the distribution cabinet body 1. The multiple cylindrical fixing rods 251 at each corner are evenly arranged on the vertical plane. The ends of the multiple cylindrical fixing rods 251 at each corner are fixedly connected to a rectangular guide post 252. The two ends of the rectangular guide post 252 facing the protective membrane 23 are provided with guide limiting grooves 253. The guide limiting block 236 is connected to the adjacent guide limiting groove 253 in a sliding fit manner. The guide limiting groove 253 on the rectangular guide post 252 limits and guides the guide limiting block 236, ensuring that the contact ends of the adjacent rectangular steel shells 233 and the adjacent positioning steel shells 235 are aligned, reducing the gap between adjacent protective membranes 23, and ensuring that there is enough space between the protective membrane 23 and the distribution cabinet body 1.

[0044] See Figure 1 and Figure 8 The right end of the fixed post 2213 has a rectangular fixed groove 2215. The inner end of the rectangular fixed groove 2215 has symmetrically and evenly spaced slots 2216. Inserted posts 2217 are connected to the slots 2216 in a sliding fit. The fixed post 2213 is symmetrically connected to the front and rear of the fixed post 2218 in a sliding fit. The movable plates 2218 are fixedly connected to the adjacent inserted posts 2217. A bidirectional screw 2219 is rotatably connected to the middle of the fixed post 2213. The front and rear sides of the bidirectional screw 2219 are respectively connected to the two movable plates 2218 in a threaded connection. When the rectangular inserted plate 246 is inserted into the rectangular fixed groove 2215, the bidirectional screw 2219 is rotated to drive the movable plates 2218 on the front and rear sides to move towards each other, thereby driving the inserted posts 2217 to be inserted into the rectangular inserted plate 246, thus limiting and fixing the end of the transparent film 241.

[0045] See Figure 2 , Figure 9 and Figure 10A ratchet 23211 is fixedly installed on the left end of the front unfolding column 2321, the front winding rod 2323, the front unfolding column 2324, and the front winding rod 2325. A pawl 23212 that meshes with the corresponding ratchet 23211 is rotatably connected to the inner end of the rectangular steel shell 233 and the positioning steel shell 235, located above the ratchet 23211. A bevel gear 23213 is fixedly installed on the left end of the ratchet 23211 on the front winding rod 2323 and the front winding rod 2325. A bevel gear 23214 is rotatably connected to the inner end of the rectangular steel shell 233 and the positioning steel shell 235, located in front of the bevel gear 23213. The bevel gear 23214 meshes with the corresponding bevel gear 23213. The front end of the bevel gear 23214... A control handle 23215 is fixedly connected, passing through the front side of the rectangular steel shell 233 and the positioning steel shell 235. When the transparent film 2322 ages or is damaged, the winding rod 2323 or winding rod 2325 on it is rotated to wind it up, thereby driving the unfolding column 2321 or unfolding column 2324 to rotate, so that the unused transparent film 2322 can be unfolded, thus ensuring the protective quality of the protective film 23. With the cooperation of ratchet 23211 and pawl 23212, it is ensured that the used transparent film 2322 will not be rotated back for reuse. Through the cooperation of bevel gear 23213 and bevel gear 23214, the transparent film 2322 can be replaced by rotating the control handle 23215.

[0046] Correspondingly, the internal structures of the rectangular steel shells 233 and positioning steel shells 235 on the other three sides are the same as those of the rectangular steel shells 233 and positioning steel shells 235 on the front side.

[0047] See Figure 6 The inner side walls of the mating groove 2214 are symmetrically provided with rectangular grooves 22141. Cylindrical springs 22142 are uniformly fixedly installed in the rectangular grooves 22141. The ends of the cylindrical springs 22142 on the same side are fixedly connected to a semi-cylinder 22143. The two side walls of the positioning steel shell 235 are symmetrically provided with arc-shaped mating grooves that mate with the semi-cylinders 22143. When the positioning steel shell 235 enters the mating groove 2214, the semi-cylinders 22143 in the mating groove 2214 are inserted into the arc-shaped mating grooves under the action of the cylindrical springs 22142, thereby limiting and fixing the positioning steel shell 235.

[0048] See Figure 6The front positioning steel shell 235 has a fixing groove in the middle of its front side. A return spring 2351 is fixedly installed at the bottom of the fixing groove. A right angle rod 2352 is fixedly installed at the upper end of the return spring 2351. The right angle rod 2352 is connected to the positioning steel shell 235 by a sliding fit. A pressing block 2353 is fixedly installed at the lower end of the right angle rod 2352. The lower outer end of the pressing block 2353 has a rounded corner. The pressing block 2353 is connected to the positioning steel shell 235 by a sliding fit. The compression block 2353 is connected in a manner such that the bottom width of the compression block 2353 is greater than the shortest distance between the two semi-cylinders 22143. When it is necessary to separate the positioning steel shell 235 from the rectangular groove 22141, the right-angle rod 2352 is pressed to move the compression block 2353 downward, compressing the semi-cylinders 22143 on both sides so that they no longer insert into the semi-circular groove. Then, the return spring 2351 drives the right-angle rod 2352 to return to its original position, preventing interference with the next limit fixation of the positioning steel shell 235.

[0049] Working principle of the invention: Step 1: When it is necessary to protect the main body of the power distribution cabinet 1 from rain, the positioning steel shells 235 around the perimeter are manually pulled downwards to engage with the mating grooves 2214 on the rectangular base plate 221 for positioning. Specifically, after the positioning steel shells 235 enter the mating grooves 2214, the semi-cylinders 22143 in the mating grooves 2214 are inserted into the arc-shaped mating grooves under the action of the cylindrical springs 22142, thereby limiting and fixing the positioning steel shells 235.

[0050] Step 2: Guide and limit the protective membrane 23 using the limiting frame 25. Specifically, when pulling the positioning steel shell 235 downward, guide and limit the guide block 236 through the guide limiting groove 253 on the rectangular guide post 252 to ensure that the contact ends of the adjacent rectangular steel shells 233 and the adjacent positioning steel shells 235 are aligned. Then, manually pull the auxiliary water-blocking component 24 to the left front of the limiting base 22 for positioning. Specifically, pull the transparent film 241 to unroll it in a clockwise direction. The transparent film 241 passes around each guide rotating post 2211 in sequence to form a closed area. When it passes around the guide rotating post to the right front again... After 2211, continue to pull the second transparent film 241. At this time, the first guide post 244 begins to slide into the second inclined groove 224, and the second guide post 245 begins to slide into the first inclined groove 218. Continue to pull the second transparent film 241 so that the rectangular insert plate 246 is inserted into the rectangular fixing groove 2215. Then, by rotating the bidirectional screw 2219, the moving plates 2218 on the front and rear sides move towards each other, thereby driving the insert post 2217 to insert into the rectangular insert plate 246, and limiting and fixing the end of the second transparent film 241. With the cooperation of the protective film 23 and the auxiliary water blocking component 24, it is ensured that there are no dead corners for rainwater to enter, so as to achieve the function of protecting the main body of the distribution cabinet 1.

[0051] Step 3: When the weather is sunny, the auxiliary water-blocking component 24 and the protective membrane component 23 can be opened. When it is necessary to open the main body of the power distribution cabinet 1, only the protective membrane component 23 on the front side needs to be opened, so as to quickly restore it to the protective state.

[0052] In the description of this invention, it should be understood that the terms "center," "middle," "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," "end," "axial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0053] Furthermore, the terms "first," "second," "number one," "number two," "one," and "two" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0054] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," "installed," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, an integral connection, or a sliding connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0055] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made based on the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A rainproof indoor power distribution cabinet, characterized in that , comprising a power distribution cabinet body (1) and a rainproof unit (2), wherein the rainproof unit (2) is arranged on the power distribution cabinet body (1) and is used to protect the power distribution cabinet body (1) from rain; The rainproof unit (2) comprises a reel (21), the reel (21) is fixedly mounted on the upper end of the power distribution cabinet body (1), a limit base (22) is fixedly mounted on the lower end of the power distribution cabinet body (1), protective film parts (23) are arranged on the reel (21) on all four sides, an auxiliary water retaining part (24) is arranged on the limit base (22), and limit frames (25) are arranged at the four corners of the power distribution cabinet body (1), and the limit frames (25) and the protective film parts (23) are connected in a sliding manner; The protective film member (23) comprises a transparent film (231) and a connecting component. The transparent film (231) and the connecting component are fixedly installed on all four sides of the winding member (21). A plurality of connecting components connected end to end are arranged at the lower end of the transparent film (231). The connecting component is composed of a rectangular steel shell (233) and a No. 1 film connecting member (232) connected end to end. The transparent film (231) is fixedly connected to the adjacent rectangular steel shell (233). A positioning steel shell (235) is arranged at the lower end of the No. 1 film connecting member (232) at the bottom. A guide limiting block (236) is fixedly installed on the side of the rectangular steel shell (233) and the positioning steel shell (235) facing the limiting frame (25). A matching groove (2214) is provided at the upper end of the rectangular bottom plate (221) and directly below the winding column (212), and the positioning steel shell (235) matches with the matching groove (2214) on the rectangular bottom plate (221); The first film connecting member (232) comprises an unfolding column (2321), the middle part of the inner end of the uppermost rectangular steel shell (233) is rotatably connected to the unfolding column (2321), a transparent film (2322) is wound and fixed on the unfolding column (2321), and the inner ends of the upper sides of the remaining rectangular steel shells (233) are rotatably connected to a winding rod (2323), and the ends of all the transparent films (2322) pass through the corresponding rectangular steel shells (233) and are fixed to the winding rod (2323). The inner end of the lower side of the other rectangular steel shell (233) is rotatably connected with the second unfolding column (2324), the middle part of the positioning steel shell (235) is rotatably connected with the second winding rod (2325), the second winding rod (2325) and the adjacent second unfolding column (2324) are fixedly connected by a transparent film (2322), and the second unfolding column (2324) and the first winding rod (2323) on the upper and lower adjacent rectangular steel shells (233) are fixedly connected by a transparent film (2322).

2. A rainproof indoor power distribution cabinet according to claim 1, characterized in that: The winding member (21) comprises a water guide cover plate (211), the inner side of the water guide cover plate (211) is rotatably connected with winding columns (212), the upper end of the transparent film (231) is wound and fixed on the outer wall of the winding column (212), a mounting column groove (213) is provided in the middle of the winding column (212), a spiral spring (214) is fixedly installed in the mounting column groove (213), a positioning rod (215) is fixedly installed in the middle of the spiral spring (214), the positioning rod (215) extends along the central axis of the mounting column groove (213) and is fixedly connected to the water guide cover plate (211), the arc-shaped side wall of the winding column (212) is fixedly connected to the transparent film (231), a U-shaped groove (217) is provided at the lower end of the water guide cover plate (211), and an inclined groove (218) is provided at the lower end of the water guide cover plate (211) and located in front of the U-shaped groove (217).

3. A rainproof indoor power distribution cabinet according to claim 1, characterized in that: The limiting base (22) comprises a rectangular bottom plate (221), the rectangular bottom plate (221) is fixedly mounted on the lower end of the power distribution cabinet body (1), a second U-shaped groove (222) is provided on the upper end of the rectangular bottom plate (221), drainage grooves (223) are evenly provided on the rectangular bottom plate (221) and located at the outer end of the second U-shaped groove (222), an inclined groove (224) is provided on the upper end of the rectangular bottom plate (221) and located in front of the second U-shaped groove (222), the inclined groove (224) is gradually inclined from left to right toward the rear side, and the right end of the inclined groove (224) is connected to the front side of the second U-shaped groove (222), the inclined groove (218) corresponds to the inclined groove (224), and the right end of the inclined groove (218) is connected to the front side of the first U-shaped groove (217).

4. A rainproof indoor power distribution cabinet according to claim 3, characterized in that: The upper end of the rectangular bottom plate (221) and the four inner corners of the second square-shaped groove (222) are all rotatably connected to guide rotating columns (2211); the arc-shaped side wall of the right front guide rotating column (2211) is fixedly connected to the auxiliary water retaining member (24); and the upper end of the rectangular bottom plate (221) and the left front corner are fixedly installed with a fixing column (2213).

5. A rainproof indoor power distribution cabinet according to claim 4, characterized in that: The auxiliary water retaining member (24) comprises a second transparent film (241), the outer wall of the right front guide rotating column (2211) is rolled up and fixed with the second transparent film (241), the upper and lower ends of the second transparent film (241) are symmetrically fixedly connected with support components, the support components are hingedly composed of support blocks (242) linearly and evenly arranged along the length direction of the second transparent film (241), a support rod (243) is fixedly connected between the upper and lower opposite support components and away from the center of the rectangular bottom plate (221), the lower end of the lower support block (242) is evenly fixedly connected with the first guide column (244), and the upper end of the upper support block (242) is evenly fixedly connected with the second guide column (245), The guide column 1 (244) and the U-shaped groove 2 (222) as well as the guide column 1 (244) and the inclined groove 2 (224) are connected in a sliding manner, the guide column 2 (245) and the U-shaped groove 1 (217) as well as the guide column 2 (245) and the inclined groove 1 (218) are connected in a sliding manner, a rectangular plug plate (246) is fixedly connected between the end of the transparent film 2 (241) and the support blocks (242) on the upper and lower sides, the rectangular plug plate (246) and the fixed column (2213) are matched, and the transparent film 2 (241) and the transparent film 1 (2322) are made of the same material as the transparent film (231).

6. A rainproof indoor power distribution cabinet according to claim 1, characterized in that: The limit frame (25) comprises a cylindrical fixing rod (251), and the four corners of the power distribution cabinet body (1) are fixedly connected with a plurality of cylindrical fixing rods (251), and the plurality of cylindrical fixing rods (251) at each corner are evenly arranged on a vertical plane, and the ends of the plurality of cylindrical fixing rods (251) at each corner are commonly fixedly connected with a rectangular guide column (252), and the two end surfaces of the rectangular guide column (252) facing the protective film member (23) are provided with guide limit grooves (253), and the guide limit block (236) is connected to the adjacent guide limit grooves (253) in a sliding fit manner.

7. A rainproof indoor power distribution cabinet according to claim 4, characterized in that: The right end of the fixed column (2213) is provided with a rectangular fixed groove (2215), and the inner end of the rectangular fixed groove (2215) is symmetrically and evenly provided with a slot (2216), and a plug column (2217) is connected in a sliding manner in the slot (2216). The fixed column (2213) is symmetrically connected to a movable plate (2218) in a sliding manner in the front and back, and the movable plate (2218) is fixedly connected to the adjacent plug column (2217). A bidirectional screw rod (2219) is rotatably connected to the middle part of the fixed column (2213), and the front and rear sides of the bidirectional screw rod (2219) are respectively connected to the adjacent movable plates (2218) in a threaded connection.

8. The rainproof indoor power distribution cabinet according to claim 1, characterized in that: The left ends of the unfolding column 1 (2321), the winding rod 1 (2323), the unfolding column 2 (2324) and the winding rod 2 (2325) on the front side are fixedly installed with a ratchet (23211); the inner ends of the rectangular steel shell (233) and the positioning steel shell (235) and located on the upper side of the ratchet (23211) are rotatably connected with a ratchet pawl (23212) that matches the corresponding ratchet (23211); the left ends of the ratchet (23211) on the winding rod 1 (2323) and the winding rod 2 (2325) on the front side are fixedly installed with a bevel gear 1 ( 23213), the inner ends of the rectangular steel shell (233) and the positioning steel shell (235) and located in front of the bevel gear one (23213) are rotatably connected with bevel gear two (23214), the bevel gear two (23214) is meshed with the corresponding bevel gear one (23213), and the front end of the bevel gear two (23214) is fixedly connected with a control handle (23215), and the rectangular steel shells (233) and the positioning steel shells (235) on the other three sides have the same internal structure as the rectangular steel shell (233) and the positioning steel shell (235) on the front side.

9. A rainproof indoor power distribution cabinet according to claim 4, characterized in that: The inner side walls of the matching groove (2214) are provided with rectangular grooves (22141), cylindrical springs (22142) are evenly and fixedly installed in the rectangular grooves (22141), and the ends of the cylindrical springs (22142) on the same side are fixedly connected with semi-cylinders (22143), and the two side walls of the positioning steel shell (235) are provided with arc-shaped matching grooves matching with the semi-cylinders (22143).

10. The rainproof indoor power distribution cabinet according to claim 1, characterized in that: A fixing groove is provided in the middle of the front side of the positioning steel shell (235) on the front side, a reset spring (2351) is fixedly installed at the bottom of the fixing groove, a right-angle rod (2352) is fixedly installed on the upper end of the reset spring (2351), the right-angle rod (2352) and the positioning steel shell (235) are connected in a sliding fit manner, an extrusion block (2353) is fixedly installed at the lower end of the right-angle rod (2352), a rounded corner is provided at the lower outer end of the extrusion block (2353), the extrusion block (2353) and the positioning steel shell (235) are connected in a sliding fit manner, and the bottom width of the extrusion block (2353) is greater than the shortest distance between the front and rear two semi-cylinders (22143).

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