A low-voltage electrical distribution cabinet

Abstract

The present invention discloses a low-voltage electrical distribution cabinet, which relates to the field of distribution cabinets and solves the problem that it is difficult to repair electrical equipment in existing low-voltage distribution cabinets. It includes: a cabinet body and a cabinet door rotatably installed outside the cabinet body. An installation plate is arranged inside the cabinet body, and a plurality of equally spaced installation grooves are formed on the surface of the installation plate. Heat dissipation windows are fixedly installed on both sides of the cabinet body; it further includes: a disassembly and assembly mechanism for quickly installing and disassembling electrical equipment on the installation plate, and the disassembly and assembly mechanism is installed inside the installation groove. Through the disassembly and assembly mechanism of the present invention, the installation plate is rotated outward to the outside of the cabinet body, so that the electrical equipment can be directly installed on the installation plate, and the electrical equipment can be fixed on the installation plate by bolts from the back of the installation plate, improving the convenience of installing the electrical equipment. And when disassembling and repairing, rotating the installation plate can remove the electrical equipment from the back of the installation plate, thus achieving the effect of facilitating the installation, disassembly and repair of the electrical equipment.

Description

Technical Field

[0001] The present invention relates to the field of distribution cabinets, and specifically to a low-voltage electrical distribution cabinet. Background Art

[0002] ‌A low-voltage distribution cabinet is a device used for converting and configuring electric energy, mainly applied to a power distribution system with an alternating current of 50 Hz and a rated voltage of 380 V, for power conversion and control of power, lighting, and power distribution. Its main components include a cabinet body, busbars, functional units, etc. The cabinet body is the outer shell, which plays a role in supporting and protecting internal electrical components. The busbars are used for power distribution, and the functional units are electrical devices and mechanical components that perform the same function.

[0003] As an important part of the power system, the normal operation of the low-voltage distribution cabinet is crucial for ensuring the reliability and safety of power supply, and thus regular maintenance is required. When installing the electrical equipment inside the existing low-voltage distribution cabinet, it is necessary to fix the electrical equipment to the mounting plate through bolts and install multiple electrical equipment in sequence. Whether the electrical equipment is loose is a key step in inspection. Since the distance between each electrical equipment is relatively close, it is difficult to observe whether the bolts fixing the electrical equipment are loose, and during maintenance, it is difficult to insert tools into the bolts for disassembly, making the operation rather inconvenient. Summary of the Invention

[0004] The purpose of the present invention is to provide a low-voltage electrical distribution cabinet to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A low-voltage electrical distribution cabinet includes: a cabinet body and a cabinet door rotatably installed on the outer side of the cabinet body. An installation plate is arranged inside the cabinet body, and a plurality of equally spaced installation grooves are formed on the surface of the installation plate. Heat dissipation windows are fixedly installed on both sides of the cabinet body, and a plurality of equally spaced observation windows are arranged on the outer side of the cabinet door;

[0007] It further includes:

[0008] A disassembly and assembly mechanism for quickly installing and disassembling the electrical equipment on the installation plate, and the disassembly and assembly mechanism is installed inside the installation groove;

[0009] An upper supporting mechanism for positioning and preventing the electrical equipment on the installation plate from falling off, and the upper supporting mechanism is installed on the outer side of the installation plate;

[0010] A dust cleaning mechanism for automatically opening the bottom of the cabinet body for dust cleaning, and the dust cleaning mechanism is installed at the bottom of the cabinet body.

[0011] Preferably, the disassembly and assembly mechanism includes a positioning plate installed inside the installation groove. A plurality of equipment grooves are fixedly installed inside the positioning plate at equal intervals. A cable hole is formed on the surface of the equipment groove. A plurality of bolt installation holes are symmetrically distributed on both sides of the cable hole on the surface of the equipment groove. Two symmetrically distributed positioning blocks are fixedly installed on the left side of the installation plate. A U-shaped plate is fixedly installed on the left side of the cabinet body. One end of the positioning block away from the installation plate is rotatably installed inside the U-shaped plate. A plurality of arc-shaped rods are fixedly installed on the outside of the U-shaped plate at equal intervals. The arc-shaped rods slidably penetrate through the outside of the installation plate. An arc-shaped spring is arranged on the outside of the arc-shaped rod. The arc-shaped spring is fixedly installed between the U-shaped plate and the installation plate. A sleeve rod is fixedly installed inside the cabinet body. Two symmetrically distributed clamping plates are arranged on the outside of the sleeve rod. The outside of both clamping plates is in contact with the outside of the installation plate. The clamping plate is docked with the sleeve rod through a coil spring. A pull rod is fixedly installed between the two clamping plates. One end of the clamping plate away from the sleeve rod is of an inclined surface structure.

[0012] Preferably, the upper support mechanism includes two brackets symmetrically arranged below the equipment groove. The brackets are fixedly installed on the outside of the positioning plate. A rotating rod is rotatably installed inside the bracket. One end of the rotating rod extends into the positioning plate. The bottom of the positioning plate is of a hollow structure. A moving block is slidably installed on the outside of the rotating rod and the outside of the bracket. External threads are formed on the outside of the rotating rod that cooperate with the moving block. A pressing plate is fixedly installed on the top of the moving block. A transmission rod is rotatably installed on one side of the positioning plate close to the U-shaped plate. First bevel gears that cooperate with each other are fixedly installed on the outside of the transmission rod and the adjacent rotating rod. A plurality of rotating rods are docked through a synchronous belt. One end of the transmission rod away from the first bevel gear extends to the outside of the installation plate. A positioning frame is fixedly installed inside the U-shaped plate. Second bevel gears that cooperate with each other are fixedly installed on the outside of the positioning frame and the outside of the transmission rod.

[0013] Preferably, the dust cleaning mechanism includes a baffle plate slidably installed at the bottom of the cabinet body. A cavity for the baffle plate to be limited and slide is opened at the bottom of the cabinet body. A plurality of sealing plates evenly distributed at equal intervals are slidably installed at the top of the baffle plate. A sliding cavity for the sealing plates to be limited and slide is opened at the top of the baffle plate. Two symmetrically distributed support rods are fixedly installed at the top of the sealing plate. The support rods slidably penetrate through the baffle plate. A limiting plate is fixedly installed between the two support rods. Two symmetrically distributed first tension springs are fixedly installed between the top of the limiting plate and the bottom of the baffle plate. A first dust cleaning hole for the sealing plate to be limited and inserted is opened at the bottom of the cabinet body. The left sides of the first dust cleaning hole and the sealing plate are both inclined surface structures. A second dust cleaning hole corresponding to the first dust cleaning hole is opened at the top of the baffle plate. A driven rod is fixedly installed at the bottom of the positioning block located at the bottom of the mounting plate. A driven gear is fixedly installed at the bottom end of the driven rod. The driven gear is located in the cavity of the cabinet body. A rack meshing with the driven gear is opened on the outer side of the baffle plate.

[0014] Preferably, wing plates are fixedly installed on both sides of the positioning plate. Grooves for the wing plates to be limited and inserted are opened on the inner side of the installation groove. The wing plates are butted against the grooves on the inner side of the installation groove through bolts.

[0015] Preferably, a load-bearing plate is arranged below the sleeve rod. The load-bearing plate is fixedly installed on the inner side of the cabinet body. The top of the load-bearing plate is in contact with the bottom of the mounting plate. The load-bearing plate is in an L-shaped structure.

[0016] Preferably, a limiting elastic plate is fixedly installed on the side of the U-shaped plate away from the arc-shaped spring. The outer side of the limiting elastic plate is made of rubber.

[0017] Preferably, a rubber block is slidably installed on the side of the abutting plate close to the positioning plate. A groove for the rubber block to be limited and slide is opened on the outer side of the abutting plate.

[0018] Preferably, a U-shaped rod is fixedly installed on the inner side of the rubber block. The U-shaped rod slidably penetrates through the abutting plate. Two symmetrically distributed second tension springs are fixedly installed between the inner side of the U-shaped rod and the outer side of the abutting plate.

[0019] Preferably, two symmetrically distributed guide rods are fixedly installed at the bottom of the cabinet body. The guide rods slidably penetrate through the baffle plate.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. Through the disassembly and assembly mechanism, the present invention rotates the mounting plate outwards to the outside of the cabinet body, so that the electrical equipment can be directly installed on the mounting plate. The electrical equipment can be fixed on the mounting plate from the back of the mounting plate through bolts, improving the convenience of installing the electrical equipment. When disassembling and overhauling, rotating the mounting plate can remove the electrical equipment from the back of the mounting plate, thus achieving the effect of facilitating the installation, disassembly and overhaul of the electrical equipment.

[0022] 2. Through the upper support mechanism, when installing the electrical equipment, the present invention can make two brackets support the bottom of the electrical equipment, providing support for the bottom of the electrical equipment. When the mounting plate is retracted into the interior of the cabinet body, two abutting plates can abut against the outside of the electrical equipment, providing auxiliary positioning for the electrical equipment and preventing the electrical equipment from loosening, thus achieving the effect of safety protection.

[0023] 3. Through the dust cleaning mechanism, when the mounting plate is rotated outwards and opened, under the cooperation of the driven gear and the rack, the baffle moves along the bottom of the cabinet body. The baffle pulls the sealing plate out of the first dust cleaning hole of the cabinet body, and aligns the second dust cleaning hole on the baffle with the first dust cleaning hole, facilitating the discharge of the dust in the cabinet body from the first dust cleaning hole and the second dust cleaning hole, thereby improving the convenience of dust cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 is a schematic diagram of the structure of the mounting plate and the positioning plate in the present invention;

[0026] Figure 3 is a schematic diagram of the structure of the U-shaped plate and the arc-shaped rod in the present invention;

[0027] Figure 4 is a schematic diagram of the structure of the buckle plate and the load-bearing plate in the present invention;

[0028] Figure 5 is a schematic diagram of the structure of the bracket and the transmission rod in the present invention;

[0029] Figure 6 is a schematic diagram of the structure of the moving block and the abutting plate in the present invention;

[0030] Figure 7 is a schematic diagram of the structure of the baffle and the limiting plate in the present invention;

[0031] Figure 8 is a schematic diagram of the structure of the sealing plate and the support rod in the present invention.

[0032] In the figure: 1, cabinet body; 2, cabinet door; 3, mounting plate; 4, mounting groove; 5, heat dissipation window; 6, positioning plate; 7, equipment groove; 8, positioning block; 9, U-shaped plate; 10, arc-shaped rod; 11, arc-shaped spring; 12, sleeve rod; 13, buckle plate; 14, coil spring; 15, pull rod; 16, bracket; 17, rotating rod; 18, moving block; 19, abutting plate; 20, transmission rod; 21, first bevel gear; 22, positioning frame; 23, second bevel gear; 24, baffle plate; 25, sealing plate; 26, support rod; 27, limiting plate; 28, first tension spring; 29, driven rod; 30, driven gear; 31, rack; 32, wing plate; 33, load-bearing plate; 34, limiting elastic plate; 35, rubber block; 36, U-shaped rod; 37, second tension spring; 38, guiding rod. Specific embodiments

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0034] Embodiment 1: Please refer to Figures 1-8 , a low-voltage electrical distribution cabinet shown in the figure, including a cabinet body 1 and a cabinet door 2 rotatably installed on the outside of the cabinet body 1. An installation plate 3 is arranged inside the cabinet body 1 for installing electrical equipment. A plurality of equally spaced installation grooves 4 are formed on the surface of the installation plate 3. Heat dissipation windows 5 are fixedly installed on both sides of the cabinet body 1 to facilitate the heat dissipation of the electrical equipment inside the cabinet body 1. A plurality of equally spaced observation windows are arranged on the outside of the cabinet door 2, and the staff can check the operation status of the electrical equipment inside the cabinet body 1 through the observation windows; it also includes: a disassembly and assembly mechanism for quickly installing and disassembling the electrical equipment on the installation plate 3, and the disassembly and assembly mechanism is installed inside the installation groove 4;

[0035] The disassembly and assembly mechanism includes a positioning plate 6 installed inside the installation groove 4. Wing plates 32 are fixedly installed on both sides of the positioning plate 6. Grooves for the wing plates 32 to be limited and inserted are opened inside the installation groove 4. The wing plates 32 are butted against the grooves inside the installation groove 4 through bolts, so that the mounting plate 3 and the positioning plate 6 form an assembled structure, which is convenient for the installation and disassembly of the positioning plate 6. A plurality of equidistantly distributed equipment grooves 7 are fixedly installed inside the positioning plate 6. The one-to-one installation of electrical equipment is realized through the plurality of equipment grooves 7. Cable holes are opened on the surface of the equipment grooves 7, and the cables of the electrical equipment can be fixed through the cable holes on the equipment grooves 7 to prevent the cables from being disordered. A plurality of bolt mounting holes symmetrically distributed on both sides of the cable hole are opened on the surface of the equipment grooves 7. The bolts on the electrical equipment can be installed and fixed through the bolt mounting holes, which is convenient for the staff to install and disassemble the bolts from the side of the mounting plate 3. Two symmetrically distributed positioning blocks 8 are fixedly installed on the left side of the mounting plate 3. A U-shaped plate 9 is fixedly installed on the left side of the cabinet body 1. One end of the positioning block 8 far away from the mounting plate 3 is rotatably installed inside the U-shaped plate 9, so that the mounting plate 3 can swing with the positioning block 8 as a fulcrum. A plurality of equidistantly distributed arc-shaped rods 10 are fixedly installed on the outer side of the U-shaped plate 9. The arc-shaped rods 10 slidably penetrate through the outer side of the mounting plate 3, so that the mounting plate 3 can swing along the outer side of the arc-shaped rods 10. An arc-shaped spring 11 is arranged on the outer side of the arc-shaped rods 10. The arc-shaped spring 11 is fixedly installed between the U-shaped plate 9 and the mounting plate 3, and the resilience of the arc-shaped spring 11 can be used to make the mounting plate 3 swing towards the direction of the cabinet door 2. A limiting elastic plate 34 is fixedly installed on the side of the U-shaped plate 9 far away from the arc-shaped spring 11. The outer side of the limiting elastic plate 34 is made of rubber, which provides a limit for the swing of the mounting plate 3 and provides a buffer for the swing of the mounting plate 3 through the rubber surface on the limiting elastic plate 34. A sleeve rod 12 is fixedly installed inside the cabinet body 1. Two symmetrically distributed buckle plates 13 are arranged on the outer side of the sleeve rod 12. The outer sides of the two buckle plates 13 are in contact with the outer side of the mounting plate 3. The buckle plates 13 are butted against the sleeve rod 12 through a coil spring 14, so that the buckle plates 13 can resist the outer side of the mounting plate 3 and lock the mounting plate 3 inside the cabinet body 1. A pull rod 15 is fixedly installed between the two buckle plates 13. Pulling the pull rod 15 can drive the two buckle plates 13 to swing away from the mounting plate 3, so that the arc-shaped spring 11 pushes the mounting plate 3 to swing, and the mounting plate 3 moves to the outside of the cabinet body 1, which is convenient for the installation and disassembly of the electrical equipment. One end of the buckle plate 13 far away from the sleeve rod 12 is of an inclined surface structure, so that when the mounting plate 3 is retracted inside the cabinet body 1, it can push the buckle plate 13 to rotate along the inclined surface of the buckle plate 13, which is convenient for quickly fixing the mounting plate 3. A load-bearing plate 33 is arranged below the sleeve rod 12. The load-bearing plate 33 is fixedly installed inside the cabinet body 1. The top of the load-bearing plate 33 is in contact with the bottom of the mounting plate 3. The load-bearing plate 33 is of an L-shaped structure, which can provide a limit for the swing of the mounting plate 3 and provide support for one end of the mounting plate 3 far away from the U-shaped plate 9.

[0036] Embodiment 2: Please refer to Figures 2-6, This embodiment further illustrates Embodiment 1. The upper support mechanism in the figure includes two brackets 16 symmetrically arranged below the equipment slot 7, enabling the two brackets 16 to support the bottom of the electrical equipment, providing support for the electrical equipment, facilitating the installation of the electrical equipment in the equipment slot 7. The brackets 16 are fixedly installed on the outer side of the positioning plate 6. A rotating rod 17 is rotatably installed on the inner side of the bracket 16. One end of the rotating rod 17 extends into the positioning plate 6. The bottom of the positioning plate 6 is a hollow structure. A moving block 18 is slidably installed on the outer side of the rotating rod 17 and the outer side of the bracket 16. External threads matching the moving block 18 are provided on the outer side of the rotating rod 17. When the rotating rod 17 rotates, the moving block 18 can be driven to move along the outer side of the bracket 16 through the external threads on its outer side. A pressing plate 19 is fixedly installed on the top of the moving block 18. When the moving block 18 moves, the pressing plate 19 can press against the outer side of the electrical equipment to provide positioning for the electrical equipment and prevent loosening. A transmission rod 20 is rotatably installed on one side of the positioning plate 6 close to the U-shaped plate 9. A first bevel gear 21 is fixedly installed on the outer sides of the transmission rod 20 and the adjacent rotating rod 17. When the transmission rod 20 rotates, the corresponding rotating rod 17 can be driven to rotate through the first bevel gear 21. The multiple rotating rods 17 are connected by a synchronous belt, enabling the multiple rotating rods 17 to rotate synchronously. One end of the transmission rod 20 away from the first bevel gear 21 extends to the outer side of the mounting plate 3. A positioning frame 22 is fixedly installed on the inner side of the U-shaped plate 9. A second bevel gear 23 is fixedly installed on the outer sides of the positioning frame 22 and the transmission rod 20. When the mounting plate 3 swings, it can drive the transmission rod 20 to move synchronously with the positioning block 8 as the fulcrum. When the transmission rod 20 moves, the second bevel gear 23 on the outer side of the transmission rod 20 moves along the second bevel gear 23 on the outer side of the positioning frame 22 to achieve the rotation of the transmission rod 20. A rubber block 35 is slidably installed on the side of the pressing plate 19 close to the positioning plate 6, enabling the pressing plate 19 to press against the outer side of the electrical equipment through the rubber block 35. A groove for limiting the sliding of the rubber block 35 is provided on the outer side of the pressing plate 19. A U-shaped rod 36 is fixedly installed on the inner side of the rubber block 35. The U-shaped rod 36 slidably penetrates the pressing plate 19. Two symmetrically distributed second tension springs 37 are fixedly installed between the inner side of the U-shaped rod 36 and the outer side of the pressing plate 19. The elasticity of the second tension springs 37 can be utilized to elastically press the rubber block 35 against the outer side of the electrical equipment.

[0037] Embodiment 3: Please refer to Figure 3 , Figure 7 and Figure 8, this embodiment further illustrates other embodiments. The dust cleaning mechanism shown in the figure includes a baffle 24 slidably mounted at the bottom of the cabinet body 1. A cavity for the baffle 24 to be limited and slide is provided at the bottom of the cabinet body 1. Two symmetrically distributed guide rods 38 are fixedly installed at the bottom of the cabinet body 1. The guide rods 38 slidably penetrate through the baffle 24 to provide guidance and support for the movement of the baffle 24. A plurality of equidistantly distributed sealing plates 25 are slidably mounted on the top of the baffle 24. A sliding cavity for the sealing plates 25 to be limited and slide is provided on the top of the baffle 24. Two symmetrically distributed support rods 26 are fixedly installed on the top of the sealing plates 25. The support rods 26 slidably penetrate through the baffle 24. A limiting plate 27 is fixedly installed between the two support rods 26. Two symmetrically distributed first tension springs 28 are fixedly installed between the top of the limiting plate 27 and the bottom of the baffle 24. A first dust cleaning hole for the sealing plates 25 to be limited and inserted is provided at the bottom of the cabinet body 1. The left sides of the first dust cleaning hole and the sealing plates 25 are both inclined surface structures. When the baffle 24 drives the sealing plates 25 to move, the sealing plates 25 can move along the inclined surface of the first dust cleaning hole, so that the sealing plates 25 can be received into the sliding cavity of the baffle 24. A second dust cleaning hole corresponding to the first dust cleaning hole is provided on the top of the baffle 24. When the first dust cleaning hole in the cabinet body 1 is aligned with the second dust cleaning hole on the baffle 24, the staff can discharge the dust in the cabinet body 1 downward from the first dust cleaning hole and the second dust cleaning hole, improving the convenience of dust cleaning. A driven rod 29 is fixedly installed at the bottom of the positioning block 8 located at the bottom of the mounting plate 3. A driven gear 30 is fixedly installed at the bottom end of the driven rod 29. When the mounting plate 3 swings, the driven rod 29 can be driven to rotate through the positioning block 8. The driven gear 30 is located in the cavity of the cabinet body 1. A rack 31 matched with the driven gear 30 is provided on the outer side of the baffle 24. When the driven rod 29 rotates, the rack 31 can be driven to move through the driven gear 30, realizing the movement of the baffle 24.

[0038] Working principle: First, the staff opens the cabinet door 2 and drives two buckle plates 13 to rotate around the sleeve rod 12 through the pull rod 15, so that the buckle plates 13 move away from the mounting plate 3. Using the resilience of the arc spring 11, the arc spring 11 pushes the mounting plate 3 to move. The mounting plate 3 drives the positioning block 8 to rotate along the inner side of the U-shaped plate 9, so that the mounting plate 3 swings towards the outside of the cabinet body 1 and contacts the limit elastic plate 34. Then, the staff inserts the electrical equipment into the equipment slot 7 of the positioning plate 6, so that the bottom of the electrical equipment contacts the two brackets 16 below the equipment slot 7. The two brackets 16 support the bottom of the electrical equipment. The staff can fix the electrical equipment in the bolt mounting holes of the equipment slot 7 through bolts and install multiple electrical equipment into other equipment slots 7 in turn. Subsequently, the staff pushes the mounting plate 3 to swing, so that the mounting plate 3 is retracted into the cabinet body 1. When the mounting plate 3 contacts the inclined surfaces of the two buckle plates 13, the mounting plate 3 pushes the buckle plates 13 to rotate along the outside of the sleeve rod 12. When the mounting plate 3 moves away from the inclined surfaces of the buckle plates 13, using the resilience of the coil spring 14, the buckle plates 13 are stuck on the outside of the mounting plate 3, so that the mounting plate 3 is fixed inside the cabinet body 1, realizing the installation of the electrical equipment. At the same time, the mounting plate 3 drives the transmission rod 20 to swing synchronously, so that the second bevel gear 23 on the transmission rod 20 moves along the second bevel gear 23 on the positioning frame 22, so that the second bevel gear 23 drives the transmission rod 20 to rotate. The transmission rod 20 drives the corresponding rotating rod 17 to rotate through the first bevel gear 21, and the rotating rod 17 drives the other rotating rods 17 to rotate synchronously through the synchronous belt. The rotating rod 17 drives the moving block 18 to move along the outside of the bracket 16 through the external thread on its outside, so that the moving block 18 drives the rubber block 35 on the pressing plate 19 to contact the outside of the electrical equipment, and using the elasticity of the second tension spring 37, the rubber block 35 elastically clamps the electrical equipment to prevent the electrical equipment from loosening and improve the firmness of the installation of the electrical equipment, thus achieving the effect of facilitating installation and installation protection;

[0039] When the electrical equipment needs to be disassembled and repaired, the staff opens the cabinet door 2 and swings the mounting plate 3 to the outside of the cabinet body 1. At this time, the side of the mounting plate 3 away from the electrical equipment is on the outside of the cabinet door 2, which is convenient for the staff to disassemble the bolts of the electrical equipment through the back of the mounting plate 3. Moreover, the two brackets 16 can provide support for the bottom of the electrical equipment to prevent the electrical equipment from falling during disassembly, improving the convenience of disassembling and repairing the electrical equipment. At the same time, the positioning block 8 of the mounting plate 3 drives the driven rod 29 to rotate synchronously, so that the driven rod 29 drives the driven gear 30 to rotate. The driven gear 30 drives the baffle 24 to move along the bottom of the two cabinet bodies 1 through the rack 31, so that the baffle 24 drives the sealing plate 25 to move synchronously. The inclined surface on the left side of the sealing plate 25 moves along the inclined surface of the first dust cleaning hole of the cabinet body 1, and the sealing plate 25 can move downward along the sliding cavity of the baffle 24 and push the support rod 26 to move. The support rod 26 stretches the first tension spring 28 through the limiting plate 27, so that the second dust cleaning hole on the baffle 24 is aligned with the first dust cleaning hole of the cabinet body 1. The staff can discharge the dust inside the cabinet body 1 from the first dust cleaning hole and the second dust cleaning hole, which is convenient for cleaning the dust inside the cabinet body 1, thus achieving the effect of facilitating disassembly, repair and dust cleaning.

[0040] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0041] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A low voltage electrical distribution cabinet, characterized in that: include: The cabinet body and the cabinet door are rotatably mounted on the outside of the cabinet body. A mounting plate is arranged on the inside of the cabinet body, and a plurality of mounting grooves are opened on the surface of the mounting plate. Heat dissipation windows are fixedly mounted on both sides of the cabinet body. Also includes: The disassembly and assembly mechanism is used to quickly install and disassemble the electrical equipment on the mounting plate. The disassembly and assembly mechanism is installed on the inner side of the mounting groove. The disassembly and assembly mechanism includes a positioning plate installed on the inner side of the mounting groove. A plurality of equipment slots are fixedly installed on the inner side of the positioning plate. Two positioning blocks are installed on the left side of the mounting plate. A U-shaped plate is fixedly installed on the left side of the cabinet. An upper supporting mechanism is used to position and prevent the electrical equipment on the mounting plate from falling off. The upper supporting mechanism is installed on the outer side of the mounting plate. The upper supporting mechanism includes two brackets arranged below the equipment slot. A rotating rod is rotatably installed on the inner side of the bracket. A moving block is slidably installed on the outer side of the rotating rod and the outer side of the bracket. An external thread matching the moving block is provided on the outer side of the rotating rod. A stop plate is installed on the top of the moving block. A transmission rod is rotatably installed on one side of the positioning plate. The transmission rod and the outer side of the adjacent rotating rod are fixedly installed with a matching first bevel gear. Multiple rotating rods are connected by synchronous belts. A positioning frame is installed on the inner side of the U-shaped plate. The outer side of the positioning frame and the outer side of the transmission rod are fixedly installed with a matching second bevel gear. A cleaning mechanism is used to automatically open the bottom of the cabinet for cleaning. The cleaning mechanism is installed at the bottom of the cabinet. The cleaning mechanism includes a baffle slidably installed on the bottom of the cabinet, a plurality of sealing plates are installed on the top of the baffle, two support rods are fixedly installed on the top of the sealing plate, a limit plate is installed between the two support rods, two first tension springs are installed between the limit plate and the baffle, a first cleaning hole for limiting the sealing plate is provided at the bottom of the cabinet, the left side of the first cleaning hole and the left side of the sealing plate are both inclined structures, a plurality of second cleaning holes are provided on the top of the baffle, a driven rod is fixedly installed at the bottom of the positioning block, a driven gear is fixedly installed at the bottom end of the driven rod, and a rack matching the driven gear is provided on the outer side of the baffle.

2. A low voltage electrical distribution cabinet according to claim 1, characterized in that: The disassembly and assembly mechanism also includes a plurality of arc-shaped rods installed on the inner side of the U-shaped plate, one end of the positioning block is rotatably installed on the inner side of the U-shaped plate, a plurality of arc-shaped rods are installed on the outer side of the U-shaped plate, the arc-shaped rods slide through the outer side of the mounting plate, an arc-shaped spring is arranged on the outer side of the arc-shaped rod, a sleeve rod is fixedly installed on the inner side of the cabinet body, two symmetrically distributed buckle plates are arranged on the outer side of the sleeve rod, and the buckle plates are connected to the sleeve rod through a coil spring.

3. A low voltage electrical distribution cabinet according to claim 1, characterized in that: Wing plates are fixedly mounted on both sides of the positioning plate, and the wing plates are butted with the grooves on the inner side of the mounting grooves through bolts.

4. A low voltage electrical distribution cabinet according to claim 2, characterized in that: A load-bearing plate is arranged below the sleeve rod, and the top of the load-bearing plate contacts the bottom of the mounting plate.

5. A low voltage electrical distribution cabinet according to claim 1, characterized in that: A limiting spring plate is fixedly mounted on one side of the U-shaped plate.

6. A low voltage electrical distribution cabinet according to claim 1, characterized in that: A rubber block is installed on one side of the abutment plate.

7. A low voltage electrical distribution cabinet according to claim 6, characterized in that: A U-shaped rod is fixedly installed on the inner side of the rubber block, and two second tension springs are fixedly installed between the inner side of the U-shaped rod and the outer side of the abutment plate.

8. A low voltage electrical distribution cabinet according to claim 1, characterized in that: Two guide rods are fixedly installed at the bottom of the cabinet, and the guide rods slide through the baffle.

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