Low voltage cable branch box

Abstract

The application belongs to the technical field of cable branch boxes, and specifically relates to a low-voltage cable branch box, which comprises a box body, a cover plate fixedly connected to the top of the box body, a heat dissipation hole formed in the outer wall of the box body, wire through holes formed in the two sides of the box body, two guide pipes fixedly and symmetrically connected to the inner wall of the box body, the two guide pipes being communicated with the two wire through holes respectively, the two guide pipes being obliquely installed, wire outlet pipes fixedly connected to the end portions of the two guide pipes, and a plurality of air blowing grooves annularly arranged on the outer wall of each of the two guide pipes; the cable is in an inclined state through the guidance of the inclined surface in the guide pipe, thereby helping to backflow the rainwater adhered to the surface of the cable, preventing the rainwater from entering the box body, and further blocking the rainwater through the inclined surface of the outer wall of the flow guide ring, and the scraping of the flow guide ring can help to peel off the rainwater adhered to the outer wall of the cable.

Description

Technical Field

[0001] This invention belongs to the technical field of cable branch boxes, specifically a low-voltage cable branch box. Background Technology

[0002] Low-voltage cable distribution boxes are widely used in municipal power distribution, residential power supply, and outdoor road network power distribution systems. They are mainly used for the transfer, branching, and distribution of power supply for cable lines. For small-capacity and concentrated independent electrical loads, cable distribution boxes can realize a power distribution layout with a single incoming line and multiple outgoing lines, effectively simplifying the cable laying structure and improving the regularity and power supply flexibility of low-voltage power distribution lines. They are an indispensable basic power distribution equipment in the end power supply system of low-voltage distribution networks.

[0003] However, during the rainy season, outdoor cables are prone to water accumulation. Traditional branch box inlet sealing structures are simple and have poor sealing reliability, allowing rainwater to easily flow along the cable sheath into the box, causing water to accumulate at the bottom. Furthermore, after the cables are covered with rainwater, short circuits and leakage are likely to occur when connecting circuits. Secondly, traditional branch boxes lack effective moisture drainage and dehumidification structures, and residual moisture inside the box cannot be discharged in time. Under the temperature difference between day and night, condensation and evaporation continue repeatedly, forming a continuous internal circulation of moisture pollution. Long-term moisture erosion will accelerate the aging of components, oxidation and corrosion of terminals, and deterioration of insulation layers, significantly reducing the service life and power supply stability of low-voltage cable branch boxes, and failing to meet the requirements for long-term reliable operation during the outdoor rainy season. Summary of the Invention

[0004] To address the shortcomings of existing technologies and solve the problem of outdoor cables easily accumulating rainwater during the rainy season, traditional branch boxes have simple sealing structures for their inlet holes with poor sealing reliability. Rainwater easily flows along the cable sheath into the box, causing water accumulation at the bottom. Furthermore, cables covered in rainwater are prone to short circuits and leakage when connected to circuits. Secondly, traditional branch boxes lack effective moisture drainage and dehumidification structures, preventing the timely removal of residual moisture. The continuous condensation and evaporation due to diurnal temperature variations create a persistent internal cycle of damp pollution. Long-term moisture erosion accelerates component aging, terminal oxidation and corrosion, and insulation deterioration, significantly reducing the service life and power supply stability of low-voltage cable branch boxes and failing to meet the requirements for long-term reliable operation during the rainy season. Therefore, this invention proposes a low-voltage cable branch box.

[0005] The technical solution adopted by the present invention to solve its technical problem is as follows: A low-voltage cable branch box of the present invention includes a box body, a cover plate fixedly connected to the top of the box body, heat dissipation holes opened on the outer wall of the box body, cable passage holes opened on both sides of the box body, two guide pipes symmetrically fixedly connected to the inner wall of the box body, the two guide pipes communicating with the two cable passage holes respectively, the two guide pipes are both installed at an angle, and cable outlet pipes are fixedly connected to the ends of the two guide pipes. Several air blowing grooves are opened in a circular array on the outer wall of the two guide pipes. Sleeves are fixedly connected to the outer wall of the two guide pipes, and the several air blowing grooves communicate with the sleeves. A fixed pipe is fixedly connected to the inner wall of the two sleeves. Two mounting brackets are symmetrically fixedly connected to the bottom of the fixed pipe. An air pump is fixedly connected between the two mounting brackets. An air extraction pipe is fixedly connected to the input end of the air pump. An air outlet pipe is fixedly connected to the output end of the air pump. The end of the air outlet pipe extends into the interior of the fixed pipe. A dehumidification component is provided at the end of the air extraction pipe.

[0006] Preferably, a flow guide ring is fixedly connected to the inner wall of the guide pipe, and the outer wall of the flow guide ring is set as an annular inclined surface.

[0007] Preferably, the dehumidification component includes a hose, which is fixedly installed at the bottom of the air extraction pipe. A sleeve is fixedly connected to the outer wall of the hose, and an air inlet is provided at the bottom of the sleeve. A first grille is fixedly connected to the inner wall of the sleeve, and a sponge pad is fixedly connected to the bottom of the first grille. An adjustment unit is provided on the inner wall of the housing.

[0008] Preferably, the adjustment unit includes a motor, which is fixedly installed at the bottom of the inner wall of the housing. A lead screw is fixedly connected to the output end of the motor. The top of the lead screw is rotatably connected to the cover plate. A slider is connected to the outer wall of the lead screw through a lead screw and nut pair. A guide rail is fixedly connected to the inner wall of the housing. The slider is slidably connected to the guide rail. A connecting frame is fixedly connected to one side of the slider. The connecting frame is fixedly connected to the housing.

[0009] Preferably, the bottom of the fixed pipe is symmetrically and fixedly connected to two heating boxes, and the inner walls of the two heating boxes are fixedly connected with heating wires.

[0010] Preferably, a second grid is slidably connected to the inner wall of the casing and below the sponge pad, a water storage box is fixedly connected to the bottom of the inner wall of the box and below the casing, a first top plate is fixedly connected to the top of the water storage box, and a sealing component is provided inside the water storage box.

[0011] Preferably, the sealing assembly includes two I-shaped frames, which are fixedly installed inside the water storage box. The outer walls of the two I-shaped frames are slidably connected to a partition, which fits against the inner wall of the water storage box. A drain valve is provided on the outer wall of the water storage box, and a linkage unit is provided at the bottom of the casing.

[0012] Preferably, the linkage unit includes a second top plate, which is fixedly installed at the bottom of the box. Springs are fitted on the outer walls of the two I-shaped frames. The bottom of the springs is fixedly connected to the I-shaped frames, and the top of the springs is fixedly connected to the partition. A drainage groove is provided on the inner wall of the box below the partition.

[0013] Preferably, the outer wall of the hose is fitted with a collar, and a counterweight is fixedly connected to the bottom of the collar.

[0014] Preferably, an exhaust hood is fixedly connected to the inner wall of the cover plate, and four electric telescopic rods are fixedly connected to the inner wall of the cover plate. The output ends of the four electric telescopic rods are all fixedly connected to a baffle. The top and bottom of the baffle are both set as symmetrical inclined surfaces. A bracket is fixedly connected to the bottom of the baffle, and a filter plate is fixedly connected to the bottom of the bracket. The filter plate is in contact with the inner wall of the exhaust hood.

[0015] The beneficial effects of this invention are as follows: 1. The low-voltage cable branch box of the present invention guides the cable to be in an inclined state through the inclined surface inside the guide pipe, thereby helping the rainwater adhering to the cable surface to flow back and preventing rainwater from entering the box. Through the set guide ring, the inclined surface of its outer wall can further block the rainwater, and the scraping of the guide ring can help peel off the rainwater adhering to the outer wall of the cable.

[0016] 2. The low-voltage cable branch box of the present invention, by activating the air pump, causes air to be discharged from the end of the air outlet pipe. The air blown from the end of the air outlet pipe enters the fixed pipe and then enters the sleeve along the fixed pipe. The air entering the sleeve enters the guide pipe along several air blowing grooves. Guided by the inclined surface of the outer wall of the guide ring, the air can be blown out at an angle towards the cable hole. After the airflow sweeps, not only is rainwater prevented from entering the box, but it can also better clean the rainwater adhering to the cable surface, preventing rainwater interference during wiring and causing short circuits. Activating the heating wire heats the air flowing from the fixed pipe, which not only removes the moisture in the air and prevents the moisture-laden air from condensing on the cable surface after sweeping the cable, but also the heated air can better dry the rainwater on the cable surface.

[0017] 3. In the low-voltage cable branch box of the present invention, when air is drawn from the end of the air extraction pipe, air is introduced through the air inlet at the bottom of the box via a flexible hose. The sponge pad can absorb the moisture in the gas, thereby facilitating the treatment of moisture inside the box. At the same time, the motor controls the up and down movement of the box, which facilitates the extraction of moisture from different layers inside the box, resulting in better moisture treatment and avoiding continuous internal circulation of damp pollution caused by moisture evaporation and condensation.

[0018] 4. In the low-voltage cable branch box of the present invention, when the box moves downward and approaches the water storage box, the first top plate pushes the second grid to squeeze the sponge pad, which can squeeze out the water absorbed in the sponge pad, so that the sponge pad can be recycled. The water squeezed out of the sponge pad is collected by the water storage box to avoid affecting the circuit inside the box. The second top plate pushes the partition to move downward, and the water squeezed out of the sponge pad falls on the partition and flows along the drainage channel to the bottom of the partition. After the box moves upward, the partition moves back to the top of the drainage channel, thereby blocking the water accumulated in the water storage box and preventing the evaporation of water from increasing the humidity inside the box. Attached Figure Description

[0019] The invention will now be further described with reference to the accompanying drawings.

[0020] Figure 1 This is a perspective view of the box body and baffle of the present invention in use; Figure 2 This is a perspective view of the housing and the through hole of the present invention in use; Figure 3 This is a cross-sectional view of the lead screw of the present invention used in conjunction with an air pump; Figure 4 This is a cross-sectional view of the guide pipe and sleeve used in conjunction with the present invention; Figure 5 This is an exploded view of the slider and sleeve of the present invention in use; Figure 6 This is an exploded view of the partition and water storage box used in conjunction with the present invention; Figure 7 This is an exploded view of the guide pipe and sleeve used in conjunction with the present invention; Figure 8 This is an exploded view of the sleeve and water storage box used in conjunction with the present invention; Figure 9 This is an exploded view of the exhaust hood and baffle used in conjunction with the present invention; Figure 10 This is the present invention. Figure 3 Enlarged view of point A in the middle; Figure 11 This is the present invention. Figure 4 Enlarged view of point B in the middle.

[0021] In the diagram: 1. Housing; 2. Cover plate; 3. Ventilation holes; 4. Cable routing holes; 5. Guide pipe; 6. Outlet pipe; 7. Air blowing channel; 8. Sleeve; 9. Fixing pipe; 10. Mounting bracket; 11. Air pump; 12. Suction pipe; 13. Outlet pipe; 14. Guide ring; 15. Hose; 16. Sleeve box; 17. Air inlet; 18. Sponge pad; 19. Motor; 20. Lead screw; 21. Slider; 22. Guide... 23. Rail; 24. Connecting frame; 25. Heating box; 26. Heating wire; 27. First grid; 28. Second grid; 29. ​​Water storage box; 20. First top plate; 30. I-beam frame; 31. Partition plate; 32. Drain valve; 33. Second top plate; 34. Drainage channel; 35. Spring; 36. Collar; 37. Counterweight; 38. Exhaust hood; 39. Electric telescopic rod; 40. Baffle; 41. Support; 42. Filter plate. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0023] like Figures 1 to 11 As shown, the present invention provides a technical solution: a low-voltage cable branch box, including a box body 1, a cover plate 2 fixedly connected to the top of the box body 1, heat dissipation holes 3 on the outer wall of the box body 1, and cable passage holes 4 on both sides of the box body 1. Two guide pipes 5 are symmetrically fixedly connected to the inner wall of the box body 1, and the two guide pipes 5 communicate with the two cable passage holes 4 respectively. Both guide pipes 5 are installed at an angle, and cable outlet pipes 6 are fixedly connected to the ends of both guide pipes 5. Several air blowing grooves 7 are arranged in a circular array on the outer wall of both guide pipes 5, and sleeves are fixedly connected to the outer wall of both guide pipes 5. The cylinder 8 and several air-blowing slots 7 are all connected to the sleeve 8. The inner walls of the two sleeves 8 are fixedly connected to a fixed pipe 9. The bottom of the fixed pipe 9 is symmetrically fixedly connected to two mounting brackets 10. An air pump 11 is fixedly connected between the two mounting brackets 10. The input end of the air pump 11 is fixedly connected to an air extraction pipe 12. The output end of the air pump 11 is fixedly connected to an air outlet pipe 13. The end of the air outlet pipe 13 extends into the interior of the fixed pipe 9. A dehumidification component is provided at the end of the air extraction pipe 12. The inner wall of the guide pipe 5 is fixedly connected to a guide ring 14. The outer wall of the guide ring 14 is set as an annular inclined surface.

[0024] The installation of cables inside the branch box using the above technical solution is existing technology and will not be elaborated upon in this technical solution. The structure within this technical solution does not affect the cable installation. When installing cables inside the box 1, the cables are inserted through the through hole 4 and guided by the guide pipe 5 into the outlet pipe 6. At this time, the inclined surface inside the guide pipe 5 guides the cables to be in an inclined state, thereby helping rainwater adhering to the cable surface to flow back and preventing rainwater from entering the box 1. The inclined surface of the outer wall of the guide ring 14 further blocks rainwater, and the scraping of the guide ring 14 helps to peel off the water. Rainwater adhering to the outer wall of the cable is removed by starting the air pump 11, which allows air to enter the end of the suction pipe 12 and exit the end of the exhaust pipe 13. The air blown out from the end of the exhaust pipe 13 enters the fixed pipe 9 and then enters the sleeve 8. The air entering the sleeve 8 enters the guide pipe 5 along several air blowing grooves 7. Guided by the inclined surface of the outer wall of the guide ring 14, the air can be blown out at an angle towards the through hole 4. After being swept by the airflow, not only is it prevented from entering the box 1, but it can also better clean the rainwater adhering to the surface of the cable, preventing short circuits caused by rainwater interference during wiring.

[0025] Specifically, the dehumidification component includes a hose 15, which is fixedly installed at the bottom of the exhaust pipe 12. A sleeve 16 is fixedly connected to the outer wall of the hose 15. An air inlet 17 is provided at the bottom of the sleeve 16. A first grille 26 is fixedly connected to the inner wall of the sleeve 16. A sponge pad 18 is fixedly connected to the bottom of the first grille 26. An adjustment unit is provided on the inner wall of the housing 1. The adjustment unit includes a motor 19, which is fixedly installed at the bottom of the inner wall of the housing 1. A lead screw 20 is fixedly connected to the output end of the motor 19. The top of the lead screw 20 is rotatably connected to the cover plate 2. A slider 21 is connected to the outer wall of the lead screw 20 through a lead screw nut pair. A guide rail 22 is fixedly connected to the inner wall of the housing 1. The slider 21 is slidably connected to the guide rail 22. A connecting frame 23 is fixedly connected to one side of the slider 21. The connecting frame 23 is fixedly connected to the sleeve 16.

[0026] With the above technical solution, when the end of the extraction pipe 12 is evacuated, the air inlet 17 at the bottom of the casing 16 is evacuated through the set hose 15. After the gas enters the casing 16 through the air inlet 17, the sponge pad 18 can absorb the moisture in the gas, which facilitates the treatment of moisture inside the box 1. At the same time, the motor 19 is started, which drives the lead screw 20 to rotate, controls the slider 21 to move up and down, drives the connecting frame 23 to move up and down, and makes the casing 16 move up and down. This facilitates the extraction of moisture from different layers inside the box 1, resulting in better moisture treatment and avoiding continuous internal circulation of damp pollution caused by moisture evaporation and condensation.

[0027] Specifically, the bottom of the fixed pipe 9 is symmetrically connected to two heating boxes 24, and the inner walls of the two heating boxes 24 are fixedly connected with heating wires 25.

[0028] By using the above technical solution, the heating wire 25 is activated to heat the gas flowing from the fixed pipe 9 (the heating temperature of the hot gas is 40-60 degrees Celsius, which will not accelerate the aging of the cable sheath). This not only removes the moisture in the gas and prevents the moisture-laden gas from condensing on the cable surface after blowing on the cable, but also allows the heated gas to better dry the rainwater on the cable surface.

[0029] Specifically, a second grille 27 is slidably connected to the inner wall of the sleeve 16 and below the sponge pad 18, a water storage box 28 is fixedly connected to the bottom of the inner wall of the box 1 and below the sleeve 16, a first top plate 29 is fixedly connected to the top of the water storage box 28, and a sealing component is provided inside the water storage box 28.

[0030] With the above technical solution, when the control slider 21 moves downward, it drives the sleeve 16 to move downward. When the sleeve 16 approaches the water storage box 28, the first top plate 29 of the top of the water storage box 28 passes through the air inlet 17 and inserts into the sleeve 16, pushing the second grille 27 to move upward in the sleeve 16. Through the squeezing of the second grille 27 and the first grille 26, the water in the sponge pad 18 can be squeezed out. The water squeezed out from the sponge pad 18 falls into the water storage box 28 along the air inlet 17 for collection, avoiding the impact on the circuit in the box 1.

[0031] Specifically, the sealing assembly includes two I-beams 30, which are fixedly installed inside the water storage box 28. The outer walls of the two I-beams 30 are slidably connected to a partition 31, which fits against the inner wall of the water storage box 28. A drain valve 32 is provided on the outer wall of the water storage box 28. A linkage unit is provided at the bottom of the sleeve box 16. The linkage unit includes a second top plate 33, which is fixedly installed at the bottom of the sleeve box 16. Springs 35 (made of corrosion-resistant and rust-proof material) are fitted on the outer walls of the two I-beams 30. The bottom of the springs 35 is fixedly connected to the I-beams 30, and the top of the springs 35 is fixedly connected to the partition 31. A drain groove 34 is provided on the inner wall of the sleeve box 16 below the partition 31.

[0032] Through the above technical solution, when the sleeve box 16 moves downward, it drives the second top plate 33 to move downward. When the first top plate 29 pushes the second grille 27 to squeeze the sponge pad 18, the second top plate 33 pushes the partition 31 downward, so that the partition 31 moves to the drainage groove 34. At this time, the water squeezed out of the sponge pad 18 falls on the partition 31 and flows along the drainage groove 34 to the bottom of the partition 31. While the partition 31 moves downward, it presses the spring 35. When the control slider 21 moves upward, it loses the pressure of the second top plate 33. Under the action of the spring 35, the partition 31 moves to the top of the drainage groove 34, thereby blocking the water stored in the water storage box 28 and preventing the evaporation of water from increasing the humidity in the box 1. When regularly maintaining the cable branch box, the water stored in the water storage box 28 can be removed through the drain valve 32.

[0033] Specifically, a collar 36 is fitted on the outer wall of the hose 15, and a counterweight 37 is fixedly connected to the bottom of the collar 36.

[0034] With the above technical solution, the counterweight block 37 limits the weight of the hose 15. When the sleeve 16 moves up and down, the collar 36 slides outside the hose 15. Under the traction of the counterweight block 37, the hose 15 remains stable, preventing the hose 15 from twisting arbitrarily and accidentally touching the circuit connection.

[0035] Specifically, an exhaust hood 38 is fixedly connected to the inner wall of the cover plate 2, and four electric telescopic rods 39 are fixedly connected to the inner wall of the cover plate 2. The output ends of the four electric telescopic rods 39 are all fixedly connected to a baffle 40. The top and bottom of the baffle 40 are both set as symmetrical slopes. A bracket 41 is fixedly connected to the bottom of the baffle 40, and a filter plate 42 is fixedly connected to the bottom of the bracket 41. The filter plate 42 fits against the inner wall of the exhaust hood 38.

[0036] Through the above technical solution, in rainy season conditions, the baffle 40 is moved downward by the electric telescopic rod 39 to fit against the top of the exhaust hood 38, preventing rainwater from seeping into the box 1. In hot weather conditions, the baffle 40 is moved upward by the electric telescopic rod 39 to keep the top of the exhaust hood 38 open, facilitating the upward discharge of hot air from the box 1 and accelerating the heat dissipation of the box 1. In addition, the filter plate 42 can prevent dust from entering the box 1.

[0037] During use, in rainy season conditions, the baffle 40 is moved downwards by the electric telescopic rod 39 to fit against the top of the exhaust hood 38, preventing rainwater from seeping into the housing 1. In hot weather conditions, the baffle 40 is moved upwards by the electric telescopic rod 39 to allow the top of the exhaust hood 38 to be unobstructed, facilitating the upward discharge of hot air from the housing 1 and accelerating heat dissipation. The filter plate 42 prevents dust from entering the housing 1. When installing cables inside the housing 1, the cables are inserted through the through hole 4 and guided by the guide pipe 5 into the outlet pipe 6. The inclined surface inside the guide pipe 5 guides the cable at an angle, helping to reverse the flow of rainwater adhering to the cable surface and preventing rainwater from entering the housing 1. The guide ring 14 is designed with an outer slope that can further block rainwater. The scraping of the guide ring 14 can also help peel off the rainwater adhering to the outer wall of the cable. By starting the air pump 11, air enters the end of the air extraction pipe 12 and exits the end of the air outlet pipe 13. The air blown out from the end of the air outlet pipe 13 enters the fixed pipe 9 and enters the sleeve 8 along the fixed pipe 9. The air entering the sleeve 8 enters the guide pipe 5 along several air blowing grooves 7. Guided by the outer slope of the guide ring 14, the air can be blown out at an angle towards the wire hole 4. After the airflow sweeps, not only is it prevented from entering the box 1, but it can also better clean the rainwater adhering to the cable surface, preventing rainwater interference during wiring and causing short circuits. When air is drawn from the end of the extraction pipe 12, air is introduced through the flexible hose 15 to the air inlet 17 at the bottom of the casing 16. After the gas enters the casing 16 through the air inlet 17, the sponge pad 18 can absorb the moisture in the gas, thus facilitating the treatment of moisture inside the box 1. At the same time, the motor 19 is started, which drives the lead screw 20 to rotate, controls the slider 21 to move up and down, drives the connecting frame 23 to move up and down, and causes the casing 16 to move up and down. This facilitates the extraction of moisture from different layers inside the box 1, resulting in better moisture treatment and preventing the evaporation and condensation of moisture from forming a continuous internal circulation of dampness. To prevent contamination, the counterweight 37 limits the movement of the hose 15. As the housing 16 moves up and down, the collar 36 slides outside the hose 15, maintaining its stability under the traction of the counterweight 37. This prevents the hose 15 from twisting arbitrarily and accidentally contacting the circuit connection. The heating wire 25 is activated to heat the gas flowing from the fixed pipe 9. This not only removes moisture from the gas, preventing condensation on the cable surface after the gas blows through it, but also allows the heated gas to better dry rainwater on the cable surface. When the control slider 21 moves downwards, it moves the housing 16 downwards. When the housing 16 approaches... When the water storage box 28 is in operation, the first top plate 29 of the top of the water storage box 28 passes through the air inlet 17 and inserts into the sleeve 16, pushing the second grille 27 to move upward within the sleeve 16. Through the compression of the second grille 27 and the first grille 26, water in the sponge pad 18 can be squeezed out. The water squeezed out from the sponge pad 18 falls into the water storage box 28 along the air inlet 17 for collection, avoiding any impact on the circuitry inside the box 1. When the sleeve 16 moves downward, it drives the second top plate 33 to move downward. When the first top plate 29 pushes the second grille 27 to compress the sponge pad 18, the second top plate 33 pushes the partition 31 downward. The partition 31 is moved to the drain trough 34. At this time, the water squeezed out of the sponge pad 18 falls onto the partition 31 and flows along the drain trough 34 to the bottom of the partition 31. As the partition 31 moves downward, the spring 35 is compressed. When the control slider 21 moves upward, the compression of the second top plate 33 is lost. Under the action of the spring 35, the partition 31 moves to the top of the drain trough 34, thereby blocking the water stored in the water storage box 28 and preventing the evaporation of water from increasing the humidity in the box 1. When the cable branch box is regularly maintained, the water stored in the water storage box 28 can be removed through the drain valve 32.

[0038] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0039] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not 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 limiting the scope of protection of this invention.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A low-voltage cable branch box, characterized in that, The enclosure includes a housing (1), with a cover plate (2) fixedly connected to the top of the housing (1). The outer wall of the housing (1) has ventilation holes (3), and both sides of the housing (1) have through holes (4). Two guide pipes (5) are symmetrically fixedly connected to the inner wall of the housing (1). The two guide pipes (5) are respectively connected to the two through holes (4). Both guide pipes (5) are installed at an angle, and the ends of both guide pipes (5) are fixedly connected to outlet pipes (6). The outer walls of both guide pipes (5) are arranged in a ring array with several air-blowing grooves (7). The outer walls of both guide pipes (5) have... Each wall is fixedly connected to a sleeve (8), and several air blowing grooves (7) are connected to the sleeve (8). The inner walls of two sleeves (8) are fixedly connected to a fixed pipe (9). The bottom of the fixed pipe (9) is symmetrically fixedly connected to two mounting brackets (10). An air pump (11) is fixedly connected between the two mounting brackets (10). The input end of the air pump (11) is fixedly connected to an air extraction pipe (12). The output end of the air pump (11) is fixedly connected to an air outlet pipe (13). The end of the air outlet pipe (13) extends into the interior of the fixed pipe (9). The end of the air extraction pipe (12) is provided with a dehumidification component.

2. A low-voltage cable branch box according to claim 1, characterized in that, The inner wall of the guide pipe (5) is fixedly connected to a flow guide ring (14), and the outer wall of the flow guide ring (14) is set as an annular inclined surface.

3. A low-voltage cable branch box according to claim 2, characterized in that, The dehumidification assembly includes a hose (15), which is fixedly installed at the bottom of the air extraction pipe (12). A sleeve (16) is fixedly connected to the outer wall of the hose (15). An air inlet (17) is provided at the bottom of the sleeve (16). A first grille (26) is fixedly connected to the inner wall of the sleeve (16). A sponge pad (18) is fixedly connected to the bottom of the first grille (26). An adjustment unit is provided on the inner wall of the housing (1).

4. A low-voltage cable branch box according to claim 3, characterized in that, The adjustment unit includes a motor (19), which is fixedly installed at the bottom of the inner wall of the housing (1). The output end of the motor (19) is fixedly connected to a lead screw (20). The top of the lead screw (20) is rotatably connected to the cover plate (2). The outer wall of the lead screw (20) is connected to a slider (21) through a lead screw nut pair. The inner wall of the housing (1) is fixedly connected to a guide rail (22). The slider (21) is slidably connected to the guide rail (22). A connecting frame (23) is fixedly connected to one side of the slider (21). The connecting frame (23) is fixedly connected to the sleeve (16).

5. A low-voltage cable branch box according to claim 4, characterized in that, The bottom of the fixed pipe (9) is symmetrically and fixedly connected to two heating boxes (24), and heating wires (25) are fixedly connected to the inner walls of the two heating boxes (24).

6. A low-voltage cable branch box according to claim 5, characterized in that, A second grille (27) is slidably connected to the inner wall of the sleeve (16) and below the sponge pad (18). A water storage box (28) is fixedly connected to the bottom of the inner wall of the box (1) and below the sleeve (16). A first top plate (29) is fixedly connected to the top of the water storage box (28). A sealing component is provided inside the water storage box (28).

7. A low-voltage cable branch box according to claim 6, characterized in that, The sealing assembly includes two I-beams (30), which are fixedly installed inside the water storage box (28). The outer walls of the two I-beams (30) are slidably connected to a partition (31), which fits against the inner wall of the water storage box (28). A drain valve (32) is provided on the outer wall of the water storage box (28). A linkage unit is provided at the bottom of the sleeve box (16).

8. A low-voltage cable branch box according to claim 7, characterized in that, The linkage unit includes a second top plate (33), which is fixedly installed at the bottom of the sleeve box (16). The outer walls of the two I-shaped frames (30) are fitted with springs (35). The bottom of the springs (35) is fixedly connected to the I-shaped frames (30), and the top of the springs (35) is fixedly connected to the partition (31). The inner wall of the sleeve box (16) and below the partition (31) is provided with a drainage groove (34).

9. A low-voltage cable branch box according to claim 8, characterized in that, The outer wall of the hose (15) is fitted with a collar (36), and a counterweight (37) is fixedly connected to the bottom of the collar (36).

10. A low-voltage cable branch box according to claim 9, characterized in that, An exhaust hood (38) is fixedly connected to the inner wall of the cover plate (2). Four electric telescopic rods (39) are fixedly connected to the inner wall of the cover plate (2). The output ends of the four electric telescopic rods (39) are fixedly connected to a baffle (40). The top and bottom of the baffle (40) are both set as symmetrical inclined surfaces. A bracket (41) is fixedly connected to the bottom of the baffle (40). A filter plate (42) is fixedly connected to the bottom of the bracket (41). The filter plate (42) fits against the inner wall of the exhaust hood (38).

Images