Waterproof electrical box

Abstract

The invention relates to the technical field of electrical boxes, and discloses a waterproof electrical box, which comprises a sliding assembly which is arranged at the bottom in a box body, is connected with a cover plate, and can drive the cover plate to slide, so that the cover plate covers a wiring hole; the lifting assembly is located at the bottom of the box body and can drive the supporting column to ascend and descend; the waterproof ventilation assembly is located on the side face, connected with the heat dissipation opening, of the box body. According to the invention, the coincidence size of the cover plate and the wiring hole can be adjusted according to the number and size of wires and the residual space of the wiring hole, thereby effectively preventing rainwater from entering the box body from the wiring hole; when accumulated water exists on the ground, the box body can be lifted, the accumulated water on the ground is prevented from permeating into the box body, risks of damp, corrosion or short circuit to electrical equipment are avoided, and the waterproofness and reliability of the electrical box are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical boxes, and particularly to a waterproof electrical box. Background Art

[0002] An electrical box is a device used for installing, protecting, and managing electrical equipment, power distribution equipment, and electrical connectors. It is usually made of metal, plastic, or other durable materials to carry electrical equipment and provide necessary protection and support. The electrical box needs to be waterproof to protect the electrical equipment from moisture erosion, prevent leakage and electric shock risks, cope with harsh weather conditions, extend the equipment life, and meet the safety standard requirements, thereby improving the safety, reliability, and stability of the electrical system.

[0003] Traditional waterproof electrical boxes generally make connections by directly opening wiring holes for the connecting wires to pass through. The diameter of the wiring holes is usually large, which results in the wiring holes being in a vacant state when no connecting wires are inserted. Rainwater may enter the electrical box through the unused wiring holes, and it is also easy for rainwater to seep in at the fan cooling openings, thus posing risks of moisture, corrosion, or short circuit to the electrical equipment. Summary of the Invention

[0004] To make up for the above deficiencies, the present invention provides a waterproof electrical box, aiming to improve the problems that the existing waterproof electrical box cannot close the unused wiring holes and the fan cooling openings are prone to rainwater entry.

[0005] To achieve the above object, the present invention provides the following technical solutions: A waterproof electrical box includes a box body. The bottom of the box body is connected to support columns, and the bottom of the support columns is connected to a base. Wiring holes are opened at the bottom of the box body, and a cooling opening is opened on the side of the box body. The waterproof electrical box further includes: A sliding assembly disposed at the bottom inside the box body, connected to a cover plate, and capable of driving the cover plate to slide, thereby realizing the cover plate to cover the wiring holes; A lifting assembly located at the bottom of the box body and capable of driving the support columns to lift; A waterproof ventilation assembly located on the side of the box body connected to the cooling opening.

[0006] In a possible design, the sliding assembly includes: A first turning handle; A rotating shaft, one end of which is fixedly connected to the first turning handle and rotatably connected to the bottom of the box body; A first gear sleeved on the outer periphery of the rotating shaft and fixedly connected to the rotating shaft; A rack meshing with the first gear; A connecting rod, the middle of which is connected to the end of the rack, and the bottom of which is rotatably connected to the cover plate; The fixing bracket is rotatably connected to the top of the connecting rod on one side and connected to the first pulley on the other side. The first sliding rail is slidably connected to the first pulley and fixedly installed at the bottom of the box body.

[0007] In a possible design, the sliding assembly further includes: The second sliding rail has an L-shaped structure, is arranged parallel to the first sliding rail, and is fixedly installed at the bottom of the box body; The second pulley is connected to the outside of the connecting rod and is slidably connected to the second sliding rail; The length of the connecting rod is greater than the distance between the cover plate and the fixing bracket.

[0008] In a possible design, the lifting assembly includes: The support housing is inserted into the bottom of the support column at the top and fixedly connected to the base at the bottom; The second turning handle; The transmission shaft is fixedly connected to the second turning handle at one end and is rotatably connected to the inner wall of the support housing; The second gear is sleeved on the outer periphery of the transmission shaft and is fixedly connected to the transmission shaft; The third gear meshes with the second gear and is rotatably connected to the inner wall of the support housing.

[0009] In a possible design, the support column is axially provided with a guide groove, and the guide groove meshes with the third gear; The inner wall of the support housing is provided with a limiting groove.

[0010] In a possible design, the lifting assembly further includes: The clamping wheel is sleeved on the outer periphery of the transmission shaft and is fixedly connected to the transmission shaft; The rotating rod is rotatably connected to the inner wall of the support housing; The dial block is connected to one end of the rotating rod and can abut against the clamping wheel; The limiting rod is connected to the dial block and can be embedded in the limiting groove.

[0011] In a possible design, the waterproof electrical box further includes a screwing assembly, and the screwing assembly includes: The bracket; The clamping part is installed on the bracket and is used for clamping the second turning handle or the support column; The hand wheel is installed on the bracket.

[0012] In a possible design, the bracket is a plurality of telescopic rods connected at the ends; Alternatively, the bracket is a rectangular frame, and guide rails are provided on both sides of the rectangular frame, and the clamping part is slidably connected to the guide rails.

[0013] In a possible design, the waterproof ventilation component includes: An inner shell with a fourth air hole opened at the front end; An outer shell sleeved on the outer periphery of the inner shell, fixedly connected to the inner shell, and communicating with the inner shell through the fourth air hole; A first partition plate located inside the inner shell, with a first air hole opened at the edge; A second partition plate located inside the inner shell, with a second air hole opened in the middle; A third partition plate located inside the inner shell, with a third air hole opened at the edge.

[0014] In a possible design, the waterproof ventilation component includes: A first cavity; A second cavity communicating with the first cavity; An air path, one end of which communicates with the second cavity and is spirally wound around the outer perimeters of the first cavity and the second cavity; A first gas distribution plate disposed inside the first cavity, with a first ventilation opening opened at the edge; A second gas distribution plate disposed inside the second cavity, with a second ventilation opening opened at the edge.

[0015] The present invention has the following beneficial effects: 1. For the waterproof electrical box provided by the present invention, by providing a sliding component and a cover plate, when not in use, the cover plate is moved through the sliding component to cover the wiring hole, preventing rainwater from entering the box body through the wiring hole. Moreover, it is convenient to adjust the overlapping size between the cover plate and the wiring hole according to the quantity and size of the wirings and the remaining space of the wiring hole, effectively avoiding rainwater from entering the box body through the wiring hole; by providing a lifting component, when there is water accumulation on the ground, the support column is lifted by adjusting the lifting component, thereby lifting the box body to avoid the infiltration of excessive ground water into the box body; by providing a waterproof ventilation component at the heat dissipation port, while ensuring that the fan can discharge the hot air from the box body, it can also prevent rainwater from entering the box body through the heat dissipation port, avoiding the risks of moisture, corrosion, or short circuit to the electrical equipment, and improving the waterproofness and reliability of the electrical box; 2. For the sliding component provided by the present invention, when the first turning handle is rotated, the rotating shaft is driven to rotate. The rotating shaft drives the rack to move in a direction close to or away from the first gear through the first gear. The rack drives the connecting rod to move, and the connecting rod drives the first pulley to move along the first slide rail through the fixing frame, thereby realizing the movement of the connecting rod to drive the cover plate to move along the first slide rail, achieving the movement of the cover plate, and thus conveniently closing and opening the wiring hole, solving the problem that rainwater enters the electrical box due to the inability to close the unused wiring hole, and improving the waterproofness of the electrical box; 3. The present invention solves the problem that rainwater enters the electrical box because the height cannot be adjusted in time when the rainwater is too high, and improves the safety of the electrical box by setting a lifting component. When the second handle is rotated, the second handle drives the second gear to rotate through a transmission shaft, and the second gear drives the support column to lift through a third gear. When there is a lot of water on the road surface, the support column is lifted by the lifting component, and then the height of the box body is increased. 4. The present invention solves the problem that rainwater enters the electrical box because the height cannot be adjusted in time when the rainwater is too high, and improves the safety of the electrical box by setting a waterproof ventilation component. The hot air flow generated by the fan is discharged outwards through the first air hole, the second air hole, the third air hole, the fourth air hole, and the channel between the inner shell and the outer shell in sequence. The external rainwater is blocked by the side wall and the bent part of the box body, and only a very small amount seeps in through the narrow channel between the side wall and the bent part of the box body, and then is blocked many times by the first partition, the second partition, and the third partition, and cannot enter the box body reversely. Therefore, while not affecting the discharge of the hot air flow of the fan from the box body, it can effectively prevent the external rainwater from seeping into the box body through the heat dissipation port. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of a waterproof electrical box of the present invention; Figure 2 for the present invention Figure 1 is a schematic diagram of the structure of the sliding component in the present invention; Figure 3 for the present invention Figure 1 is a schematic diagram of the structure of the lifting component in the present invention; Figure 4 is a schematic diagram of the structure of a specific embodiment of the screwing component of the present invention; Figure 5 is a schematic diagram of the structure of another specific embodiment of the screwing component of the present invention; Figure 6 is a schematic diagram of the structure of a specific embodiment of the waterproof ventilation component of the present invention; Figure 7 is a schematic diagram of the structure of another specific embodiment of the waterproof ventilation component of the present invention.

[0017] LEGEND DESCRIPTION: 1. Box body; 2. Support column; 3. Base; 4. Heat dissipation port; 5. First turning handle; 6. Rotating shaft; 7. First gear; 8. Rack; 9. Connecting rod; 10. Fixed frame; 11. First pulley; 12. First slide rail; 13. Second slide rail; 14. Second pulley; 15. Support housing; 16. Second turning handle; 17. Transmission shaft; 18. Second gear; 19. Third gear; 20. Guide groove; 21. Limit groove; 22. Clamping wheel; 23. Rotating rod; 24. Pushing block; 25. Limit rod; 26. Clamping part; 27. Handwheel; 28. Telescopic rod; 29. Guide rail; 30. Inner shell; 31. Outer shell; 32. First partition board; 33. Second partition board; 34. Third partition board; 35. First cavity; 36. Second cavity; 37. Gas path; 38. First gas distribution plate; 39. Second gas distribution plate; 40. Cover plate; 41. Rainproof cover. Detailed implementation mode

[0018] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0019] A waterproof electrical box, referring to Figures 1-7 , includes a box body 1. The bottom of the box body 1 is connected to a support column 2, the bottom of the support column 2 is connected to a base 3. A wiring hole is opened at the bottom of the box body 1. A fan is installed on the side of the box body 1, and a heat dissipation port 4 is opened on the side of the box body 1. The gas generated by the heat exchange of the fan is discharged from the box body 1 through the heat dissipation port 4.

[0020] Furthermore, the waterproof electrical box further includes: a sliding assembly, a lifting assembly, and a waterproof ventilation assembly. The sliding assembly is arranged at the bottom inside the box body 1. The sliding assembly is connected to the cover plate 40 and can drive the cover plate 40 to slide, thereby realizing the cover plate 40 covering the wiring hole, or realizing that the cover plate 40 does not coincide with the wiring hole at all, realizing the open state of the wiring hole, or realizing partial coincidence between the cover plate 40 and the wiring hole, so as to adjust the coincidence size between the cover plate 40 and the wiring hole according to the number of wirings and the remaining space of the wiring hole. The lifting assembly is located at the bottom of the box body 1 and can drive the support column 2 to lift. The waterproof ventilation assembly is located on the side of the box body 1 connected to the heat dissipation port 4.

[0021] The waterproof electrical box provided by the present invention is provided with a sliding component and a cover plate 40. When not in use, the cover plate 40 is moved through the sliding component to cover the wiring hole, preventing rainwater from entering the box body 1 through the wiring hole. Moreover, it is convenient to adjust the overlapping size of the cover plate 40 and the wiring hole according to the quantity and size of the wiring and the remaining space of the wiring hole, effectively avoiding rainwater from entering the box body 1 through the wiring hole; by providing a lifting component, when there is accumulated water on the ground, the support column 2 is driven to rise by adjusting the lifting component, and then the box body 1 is raised to avoid the high accumulated water on the ground from seeping into the box body 1; by providing a waterproof ventilation component at the heat dissipation port 4, while ensuring that the fan can discharge the hot air from the box body 1, it can also prevent rainwater from entering the box body 1 through the heat dissipation port 4, avoiding the risks of moisture, corrosion or short circuit to the electrical equipment, and improving the waterproofness and reliability of the electrical box.

[0022] In a possible design, a rain cover 41 is provided on the top of the box body 1, and the area of the downward projection of the rain cover 41 is larger than the area of the downward projection of the box body 1. When it rains, the rainwater can slide down along the rain cover 41.

[0023] In a possible design, the sliding component includes: a first turning handle 5, a rotating shaft 6, a first gear 7, a rack 8, a connecting rod 9, a fixing frame 10 and a first slide rail 12. One end of the rotating shaft 6 is fixedly connected to the first turning handle 5, and the rotating shaft 6 is rotatably connected to the bottom of the box body 1; the first gear 7 is sleeved on the outer periphery of the rotating shaft 6, and the first gear 7 is fixedly connected to the rotating shaft 6; the rack 8 meshes with the first gear 7; the middle part of the connecting rod 9 is connected to the end of the rack 8, and the bottom of the connecting rod 9 is rotatably connected to the cover plate 40; one side of the fixing frame 10 is rotatably connected to the top of the connecting rod 9, and the other side is connected to the first pulley 11; the first slide rail 12 is slidably connected to the first pulley 11, and the first slide rail 12 is fixedly installed at the bottom of the box body 1.

[0024] For the sliding component provided by the present invention, when the first turning handle 5 is rotated, the rotating shaft 6 is driven to rotate. The rotating shaft 6 drives the rack 8 to move in a direction close to or away from the first gear 7 through the rotation of the first gear 7. The rack 8 drives the connecting rod 9 to move. The connecting rod 9 drives the first pulley 11 to move along the first slide rail 12 through the fixing frame 10, and then the connecting rod 9 drives the cover plate 40 to move along the first slide rail 12, realizing the movement of the cover plate 40, thereby conveniently closing and opening the wiring hole, solving the problem that rainwater enters the electrical box due to the inability to close the unused wiring hole, and improving the waterproofness of the electrical box.

[0025] In a possible design, the sliding component further includes a second slide rail 13 and a second pulley 14. The second slide rail 13 has an L-shaped structure, is arranged in parallel with the first slide rail 12, and is fixedly installed at the bottom of the box body 1. The second pulley 14 is connected to the outer side of the connecting rod 9 and is slidably connected to the second slide rail 13. That is to say, when the cover plate 40 completely coincides with the wiring hole, the second pulley 14 moves to the inflection point of the L-shaped second slide rail 13, and the second pulley 14 slides downward, and the cover plate 40 is embedded downward into the wiring hole, thereby realizing a tight engagement between the cover plate 40 and the wiring hole, effectively preventing rainwater from entering the box body 1 through the wiring hole.

[0026] In a possible design, the length of the connecting rod 9 is greater than the distance between the cover plate 40 and the fixing frame 10. When the rack 8 drives the connecting rod 9 to move, the connecting rod 9 is in an inclined state; when the cover plate 40 is embedded downward into the wiring hole, at this time, the connecting rod 9 is in a vertical state.

[0027] In a possible design, the lifting component includes a support housing 15, a second turning handle 16, a transmission shaft 17, a second gear 18, and a third gear 19. The top of the support housing 15 is inserted into the bottom of the support column 2, and the bottom of the support housing 15 is fixedly connected to the base 3. One end of the transmission shaft 17 is fixedly connected to the second turning handle 16, and the transmission shaft 17 is rotatably connected to the inner wall of the support housing 15. The second gear 18 is sleeved on the outer periphery of the transmission shaft 17, and the second gear 18 is fixedly connected to the transmission shaft 17. The third gear 19 meshes with the second gear 18, and the third gear 19 is rotatably connected to the inner wall of the support housing 15. The support column 2 is provided with a guide groove 20 along the axial direction, and the guide groove 20 meshes with the third gear 19; a limit groove 21 is opened on the inner wall of the support housing 15.

[0028] In the present invention, by providing a lifting component, when the second turning handle 16 is rotated, the second turning handle 16 drives the second gear 18 to rotate through the transmission shaft 17, and the second gear 18 drives the support column 2 to lift through the third gear 19. When there is a lot of water accumulation on the road surface, the support column 2 is raised through the lifting component, and then the height of the box body 1 is raised, preventing the water accumulation on the road surface from entering the box body 1 and improving the waterproof performance of the box body 1.

[0029] In a possible design, the lifting component further includes a clamping wheel 22, a rotating rod 23, a dial block 24, and a limiting rod 25. The clamping wheel 22 is sleeved on the outer periphery of the transmission shaft 17, and the clamping wheel 22 is fixedly connected to the transmission shaft 17. The rotating rod 23 is rotatably connected to the inner wall of the support housing 15. The dial block 24 is connected to one end of the rotating rod 23 and can abut against the clamping wheel 22; the limiting rod 25 is connected to the dial block 24 and can be embedded into the limiting groove 21.

[0030] During specific implementation, rotate the rotating rod 23. The rotating rod 23 drives the shifting block 24 away from the clamping wheel 22, releasing the locking of the shifting block 24 on the clamping wheel 22. Rotate the second turning handle 16 to adjust the height of the support column 2. After completing the height adjustment of the support column 2, rotate the rotating rod 23 again until the shifting block 24 locks the clamping wheel 22. At this time, the limiting rod 25 is inserted into the limiting groove 21 to achieve the height locking of the support column 2.

[0031] In a possible design, the waterproof electrical box further includes a screwing assembly. The screwing assembly includes: a bracket, a clamping portion 26, and a handwheel 27. The clamping portion 26 is installed on the bracket and is used to clamp the second turning handle 16 or the support column 2, and the handwheel 27 is installed on the bracket. The number of the clamping portions 26 is multiple. Preferably, the number of the clamping portions 26 is four.

[0032] In the present invention, by providing the screwing assembly, the four clamping portions 26 respectively clamp the four second turning handles 16. Rotating the handwheel 27 can achieve the synchronous lifting and lowering of the four support columns 2. Or the screwing assembly can be used to synchronously adjust the coincidence degree of multiple cover plates 40 and the wiring holes, which is convenient and fast and can be adjusted quickly.

[0033] In a possible design, the bracket is a plurality of telescopic rods 28 connected at the ends. Preferably, one ends of the plurality of telescopic rods 28 are fixedly connected, and the length of the telescopic rods 28 is adjusted according to the position of the second turning handle 16 or the first turning handle 5.

[0034] Or, the bracket is a rectangular frame, and guide rails 29 are provided on both sides of the rectangular frame. The clamping portion 26 is slidably connected to the guide rails 29. By providing the guide rails 29 and the clamping portion 26 slidably connected to the guide rails 29, it is convenient to adjust the clamping portion 26 according to the distance between adjacent second turning handles 16.

[0035] It should be noted that when the screwing assembly is not needed, the clamping portion 26 can clamp the support column 2, thereby fixing the screwing assembly at the lower part of the box body 1, which is convenient for storage.

[0036] In a possible design, the waterproof ventilation component, as Figure 6 shown, includes: an inner shell 30, an outer shell 31, a first partition 32, a second partition 33, and a third partition 34. A fourth air hole is opened at the front end of the inner shell 30, and the inner shell 30 is communicated with the side wall of the box body 1 at the edge of the heat dissipation port 4; the outer shell 31 is sleeved on the outer periphery of the inner shell 30, and the end of the outer shell 31 is bent inward to form a bent portion. The outer shell 31 is fixedly connected to the inner shell 30 and is communicated with the inner shell 30 through the fourth air hole; the first partition 32 is located inside the inner shell, and a first air hole is opened at the edge of the first partition 32; the second partition 33 is located inside the inner shell, and a second air hole is opened in the middle of the second partition 33; the third partition 34 is located inside the inner shell, and a third air hole is opened at the edge of the third partition 34.

[0037] In the present invention, by providing a waterproof ventilation component, the hot air flow generated by the fan is discharged outward successively through the first air hole, the second air hole, the third air hole, the fourth air hole, and the channel between the inner shell 30 and the outer shell 31. The external rainwater is blocked by the side wall and the bent part of the box body 1, and only a very small amount seeps in through the narrow channel between the side wall of the box body 1 and the bent part. After being blocked multiple times by the first partition 32, the second partition 33, and the third partition 34, it cannot enter the box body 1 reversely. Therefore, while not affecting the discharge of the hot air flow of the fan from the box body 1, it can effectively prevent the external rainwater from seeping into the box body 1 through the heat dissipation port.

[0038] In a possible design, the waterproof ventilation component, such as Figure 7 shown, includes: a first cavity 35, a second cavity 36, an air path 37, a first gas distribution plate 38, and a second gas distribution plate 39. The second cavity 36 communicates with the first cavity 35; one end of the air path 37 communicates with the second cavity 36, and the air path 37 is spirally wound around the outer periphery of the first cavity 35 and the second cavity 36; the first gas distribution plate 38 is disposed in the first cavity, and a first ventilation opening is formed at the edge of the first gas distribution plate 38; the second gas distribution plate 39 is disposed in the second cavity, and a second ventilation opening is formed at the edge of the second gas distribution plate 39.

[0039] During specific implementation, the hot air flow generated by the fan is discharged outward successively through the first cavity 35, the second cavity 36, and the air path 37. The external rainwater is blocked multiple times by the spiral air path 37, the second gas distribution plate 39, and the first gas distribution plate 38, and cannot enter the box body 1 reversely. Therefore, while not affecting the discharge of the hot air flow of the fan from the box body 1, it can effectively prevent the external rainwater from seeping into the box body 1 through the heat dissipation port.

[0040] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0041] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0042] In the present invention, unless otherwise clearly specified and defined, terms such as "mounted", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or communicable with each other; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] In the present invention, terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0044] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A waterproof electrical box, comprising a box body, the bottom of the box body is connected to a support column, the bottom of the support column is connected to a base, the bottom of the box body is provided with a wiring hole, and the side of the box body is provided with a heat dissipation port, characterized in that: The waterproof electrical box also includes: A sliding assembly is arranged at the bottom of the box body and connected to the cover plate, and can drive the cover plate to slide, thereby enabling the cover plate to cover the wiring hole; A lifting assembly, located at the bottom of the box, capable of driving the support column to rise and fall; The waterproof ventilation component is located on the side of the box body connected to the heat dissipation port.

2. A waterproof electrical box according to claim 1, characterized in that: The sliding assembly comprises: First turn; A rotating shaft, one end of which is fixedly connected to the first handle and rotatably connected to the bottom of the box; A first gear, sleeved on the outer circumference of the rotating shaft and fixedly connected to the rotating shaft; a rack meshing with the first gear; A connecting rod, the middle part of which is connected to the end of the rack, and the bottom part of which is rotatably connected to the cover plate; A fixed frame, one side of which is rotatably connected to the top of the connecting rod, and the other side of which is connected to the first pulley; The first slide rail is slidably connected to the first pulley and is fixedly installed at the bottom of the box.

3. A waterproof electrical box according to claim 2, characterized in that: The sliding assembly also includes: A second slide rail, an L-shaped structure, is arranged parallel to the first slide rail and is fixedly installed at the bottom of the box; A second pulley connected to the outer side of the connecting rod and slidably connected to the second slide rail; The length of the connecting rod is greater than the distance between the cover plate and the fixing frame.

4. A waterproof electrical box according to claim 1, characterized in that: The lifting assembly comprises: A support shell, the top of which is plugged into the bottom of the support column, and the bottom of which is fixedly connected to the base; Second turn; A transmission shaft, one end of which is fixedly connected to the second handle and rotatably connected to the inner wall of the supporting shell; A second gear, sleeved on the outer circumference of the transmission shaft and fixedly connected to the transmission shaft; The third gear is meshed with the second gear and is rotatably connected to the inner wall of the supporting shell.

5. A waterproof electrical box according to claim 4, characterized in that: The support column is provided with a guide groove along the axial direction, and the guide groove is meshed with the third gear; The inner wall of the supporting shell is provided with a limiting groove.

6. A waterproof electrical box according to claim 5, characterized in that: The lifting assembly also includes: A clamping wheel, sleeved on the outer circumference of the transmission shaft and fixedly connected to the transmission shaft; A rotating rod, rotatably connected to the inner wall of the supporting shell; A shift block connected to one end of the rotating rod and capable of resisting the clamping wheel; The limiting rod is connected to the shifting block and can be embedded in the limiting groove.

7. A waterproof electrical box according to claim 6, characterized in that: The waterproof electrical box also includes a screwing assembly, which includes: Bracket; A clamping portion, mounted on the bracket, for clamping the second handlebar or the support column; A hand wheel is mounted on the bracket.

8. A waterproof electrical box according to claim 7, characterized in that: The bracket is a plurality of telescopic rods connected at the ends; Alternatively, the bracket is a rectangular frame, guide rails are provided on both sides of the rectangular frame, and the clamping portion is slidably connected to the guide rails.

9. A waterproof electrical box according to any one of claims 1 to 8, characterized in that: The waterproof ventilation component comprises: The inner shell has a fourth air hole at the front end; An outer shell is sleeved on the outer periphery of the inner shell, fixedly connected to the inner shell, and communicated with the inner shell through a fourth air hole; A first baffle, located inside the inner shell, with a first air hole formed on its edge; A second partition plate is located inside the inner shell and has a second air hole in the middle; The third partition is located inside the inner shell, and a third air hole is formed on its edge.

10. A waterproof electrical box according to any one of claims 1 to 8, characterized in that: The waterproof ventilation component comprises: a first cavity; a second cavity, connected to the first cavity; An air path, one end of which is connected to the second cavity and spirally wound around the outer circumference of the first cavity and the second cavity; A first gas distribution plate is disposed in the first cavity and has a first vent opening at its edge; The second gas distribution plate is disposed in the second cavity and has a second vent at its edge.

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