Outdoor low-voltage cable branch box

Abstract

The application relates to the technical field of cable branch boxes, in particular to an outdoor low-voltage cable branch box, which comprises a cavity base, a box body fixed at the top end of the cavity base and a sealing door rotatably installed on one side of the box body, and through the cooperation of a driving assembly and a dehumidification assembly, a rotating roller can drive a water-absorbing cloth sleeve to closely adhere to the inner wall of the box body and roll, so that the inner wall of the box body is comprehensively wiped, compared with traditional active carbon passive adsorption, the active absorption of condensation is more thorough, and the dehumidification effect is better; meanwhile, when the dehumidification assembly is not used, through the setting of an isolation assembly, hot air generated by a power distribution module can be introduced into the inside of the arc-shaped cover, so that the water-absorbing cloth sleeve can be hot-blow-dried, moisture and mildew of the water-absorbing cloth sleeve during idling can be prevented, the overall structure has high automation, is suitable for outdoor high-humidity environments, can stably guarantee the dryness of the inside of the box body for a long time, can effectively protect the power distribution module from moisture erosion, and can prolong the service life of the branch box and improve the operation safety.

Description

Technical Field

[0001] This invention relates to the field of cable branch box technology, specifically an outdoor low-voltage cable branch box. Background Technology

[0002] Outdoor low-voltage cable distribution boxes are indispensable power distribution nodes in urban power distribution networks. They are widely used in residential areas, industrial parks, and road lighting. Their core function is to branch, transfer, and protect low-voltage cables. Traditional distribution boxes are usually made of metal or non-metal enclosures and contain electrical equipment such as circuit breakers and terminals.

[0003] In outdoor or humid environments, the inner walls of low-voltage cable distribution boxes are prone to condensation due to changes in ambient humidity. For example, in the early morning when the temperature is low, water vapor in the air condenses into water droplets when it encounters the cold walls of the box, or rainwater seeps into the gaps in the box during rainy weather, causing moisture to accumulate inside. If this moisture remains for a long time, it will affect the insulation performance of electrical components such as terminals and busbars inside the box, and may even cause short circuit faults. To solve this problem, some existing cable distribution boxes with moisture-proof functions use activated carbon to dehumidify the inside of the box. Activated carbon, with its porous and loose structure, can passively adsorb water vapor molecules in the air, reduce the humidity inside the box through its own adsorption capacity, thereby reducing the generation of condensation on the inner walls, maintaining a relatively dry environment inside the box, and providing basic moisture protection for electrical components.

[0004] However, this activated carbon adsorption method of moisture prevention has obvious shortcomings in practical outdoor applications. On the one hand, the adsorption capacity of activated carbon has a saturation limit. When the adsorbed water vapor reaches a certain amount, its dehumidification effect will drop significantly. It is necessary for staff to regularly go to the site to replace the activated carbon. The whole process not only consumes a lot of manpower and time, but may also require temporary power outages, which will have a certain impact on the stability of power supply. On the other hand, its dehumidification effect is difficult to meet the needs of high humidity outdoor environments. Activated carbon is a passive adsorption method and can only slowly absorb water vapor in the air. It can hardly remove condensation or thick water film that has already formed on the inner wall of the box, and cannot fundamentally guarantee a dry operating environment for electrical components. Summary of the Invention

[0005] The purpose of this invention is to provide an outdoor low-voltage cable distribution box to solve the problem mentioned in the background art that the dehumidification effect of existing outdoor low-voltage cable distribution boxes is difficult to meet the needs of high humidity outdoor environments. Activated carbon is a passive adsorption material, which can only slowly absorb moisture from the air. It can hardly remove condensation or thick water film that has already formed on the inner wall of the box, and cannot fundamentally guarantee a dry operating environment for electrical components.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an outdoor low-voltage cable branch box, comprising a hollow base, a box body fixed to the top of the hollow base, and a sealing door rotatably installed on one side of the box body. A fixing seat is fixed on the bottom wall of the hollow base, and a power distribution module is fixed on the top of the fixing seat. A rectangular frame is provided inside the edge of the hollow base, and a driving component is provided on one side of the rectangular frame. Arc-shaped covers are fixedly installed on the four side walls of the rectangular frame, and dehumidification components are provided inside the arc-shaped covers. An isolation component is provided on the inner wall of the hollow base near the arc-shaped covers. A liquid collection box is fixedly installed on the top of the box body, and a driving liquid spraying component is provided on one side of the arc-shaped covers. The dehumidification component includes a rotating roller and an absorbent cloth sleeve. The rotating roller is rotatably installed inside one side of the arc-shaped cover, and the absorbent cloth sleeve is fitted and fixed on the outer surface of the rotating roller.

[0007] Furthermore, the drive assembly includes a guide rod, a drive motor, and a reciprocating lead screw. The guide rod is longitudinally fixedly installed inside one side of the corner of the cavity base. The drive motor is fixedly installed on one side of the bottom wall of the cavity base. The reciprocating lead screw is threaded through and installed inside one side of the rectangular frame. The output end of the drive motor is coaxially fixed with one end of the reciprocating lead screw. The rectangular frame is slidably installed on the outside of one side of the guide rod on the side away from the reciprocating lead screw.

[0008] Furthermore, a mixing tank is fixedly installed on the side of the rectangular frame near the arc-shaped cover, and an inverted cone-shaped guide cover is fixedly installed through the top of the mixing tank. The top of the guide cover is fixedly connected through the bottom of the arc-shaped cover, and an abutting scraper is fixedly installed on the inner wall of one side of the bottom of the arc-shaped cover. One side of the abutting scraper is in contact with and adheres to one side of the absorbent cloth cover.

[0009] Furthermore, the isolation assembly includes an isolation cover and a vent pipe. The isolation cover is fixedly installed on one inner wall of the cavity base. The opening end of the isolation cover corresponds to the opening end of the arc-shaped cover. The vent pipe is fixedly installed inside one end of the isolation cover. The input end of the vent pipe is located on the side close to the power distribution module. The side of the isolation cover away from the vent pipe has a discharge hole.

[0010] Furthermore, a limiting cavity is formed inside the isolation cover on the side near the top of the arc-shaped cover. A sliding plate is slidably engaged inside the limiting cavity. Several abutting springs are fixedly installed between one side of the sliding plate and one side of the inner wall of the limiting cavity. An arc-shaped abutting block is fixedly installed on the side of the sliding plate near the arc-shaped cover.

[0011] Furthermore, the driving spray assembly includes a gear, a rotating disk, and a nozzle tube. The gear is fixedly installed outside one end of the rotating roller. The rotating disk is located outside one side of the gear. The nozzle tube is fixedly installed outside the top side of the arc-shaped cover near the inner wall of the housing. A ratchet is engaged on one side of the gear.

[0012] Furthermore, a rotating shaft is fixedly installed through the middle of the ratchet, one end of the rotating shaft is rotatably installed on the outside of one side of the arc-shaped cover, the middle of the rotating disk is fixedly installed on the outside of one end of the rotating shaft, a positioning post is fixedly installed on the outer edge of the rotating disk away from the rotating shaft, a movable frame is slidably installed through the outside of the positioning post, an auxiliary rod is longitudinally fixed at the middle of the top of the movable frame, an auxiliary frame is slidably installed through the top of the auxiliary rod, and one side of the auxiliary frame is fixedly installed on the outside of one side of the arc-shaped cover.

[0013] Furthermore, a piston rod is longitudinally fixedly installed at the bottom center of the movable frame, and a liquid collecting cylinder is slidably and sealingly installed through the outside of the piston rod. A positioning frame is fixedly installed on one side of the liquid collecting cylinder, and one end of the positioning frame is fixedly installed on the outside of one side of the arc-shaped cover. A one-way liquid inlet valve pipe and a one-way liquid outlet valve pipe are fixedly installed through the bottom of the liquid collecting cylinder.

[0014] Furthermore, the input end of the one-way liquid inlet valve pipe is fixed inside the bottom side of the mixing tank, the output end of the one-way liquid outlet valve pipe is fixed inside the nozzle pipe, and several atomizing nozzles are fixed at equal intervals on the side of the nozzle pipe near the inner wall of the tank.

[0015] Furthermore, a connecting pipe is fixedly installed through the top of the mixing tank, a guide pipe is fixedly installed inside the liquid collection box near the bottom end of the connecting pipe, and a press valve is fixedly installed inside one side of the guide pipe.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. Through the coordinated operation of the drive component and the dehumidification component, the rotating roller can drive the absorbent cloth sleeve to roll tightly against the inner wall of the box, thereby thoroughly wiping away condensation on the inner wall of the box. Compared with the passive adsorption of traditional activated carbon, the active absorption of condensation is more thorough and the dehumidification effect is better, meeting the needs of outdoor high humidity environment. At the same time, the water absorbed by the absorbent cloth sleeve can be squeezed and drained for preservation, realizing the recycling of condensation. There is no need for frequent manual replacement of moisture-absorbing consumables, which greatly reduces the workload of operation and maintenance. In addition, when the dehumidification component is not in use, the hot air generated by the power distribution module can be introduced into the interior of the arc-shaped cover through the setting of the isolation component, which can dry the absorbent cloth sleeve with hot air blowing, preventing it from getting damp and moldy when idle. The overall structure has a high degree of automation, is suitable for outdoor high humidity environment, can ensure the dryness of the box interior for a long time, effectively protect the power distribution module from moisture corrosion, and improve the service life and operational safety of the branch box.

[0018] 2. When the drive component lowers and resets the dehumidification component, it drives the spray component to operate, smoothly delivering the pre-mixed liquid in the mixing tank to the atomizing nozzle. The liquid then evenly covers the inner wall of the chamber. The hydrophobic layer formed by the spray significantly reduces the hydrophilicity of the inner wall of the chamber, making it difficult for water vapor in the environment to adhere to and condense on the wall surface. This inhibits the regeneration of condensation from the source, avoiding the limitation of traditional dehumidification methods that can only deal with existing condensation and cannot prevent the formation of new condensation. It constructs a dual moisture-proof system of active dehumidification and passive protection. On the other hand, this structure does not require additional power to drive it. It can be triggered by the reset movement of the dehumidification component, which reduces additional energy consumption and achieves seamless connection between dehumidification and protection actions. It avoids the tediousness and untimeliness of manual spraying. At the same time, the condensation water in the mixed liquid comes from the water recovered by the dehumidification component, realizing resource recycling and eliminating the need for additional liquid replenishment. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the overall cross-sectional three-dimensional structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the overall top sectional structure of the present invention;

[0022] Figure 4 This is a partial cross-sectional three-dimensional structural schematic diagram of the drive motor and reciprocating lead screw of the present invention;

[0023] Figure 5 This is a partial cross-sectional three-dimensional structural diagram of the rotating roller and absorbent cloth sleeve of the present invention;

[0024] Figure 6 This is a side view of the rotating roller and absorbent cloth sleeve of the present invention.

[0025] Figure 7 This is a partial cross-sectional perspective view of the mixing tank and guide cover of the present invention.

[0026] Figure 8 This is a three-dimensional structural diagram of the rotating roller and gear of the present invention;

[0027] Figure 9 This is a three-dimensional structural diagram of the ratchet and rotating shaft of the present invention;

[0028] Figure 10 for Figure 8 Enlarged structural diagram at point A in the middle;

[0029] Figure 11 for Figure 8 Enlarged structural diagram at point B;

[0030] Figure 12 This is a schematic diagram demonstrating the alignment of the connecting pipe and the conductive pipe of the present invention;

[0031] Figure 13 This is a schematic diagram demonstrating how the nozzle tube of the present invention sprays a hydrophobic mixture onto the inner wall of the box.

[0032] The components represented by each mark in the attached diagram are listed below: 1. Cavity base; 2. Box body; 3. Sealing door; 4. Fixing seat; 5. Power distribution module; 6. Rectangular frame; 7. Guide rod; 8. Drive motor; 9. Reciprocating screw; 10. Mixing tank; 11. Arc-shaped cover; 12. Guide cover; 13. Rotating roller; 14. Absorbent cloth cover; 15. Abutment scraper; 16. Isolation cover; 17. Limiting cavity; 18. Sliding plate; 19. Arc-shaped abutment block; 20. Abutment spring. 21. Spring; 22. Gear; 23. Ratchet; 24. Shaft; 25. Rotating disk; 26. Positioning pin; 27. Moving frame; 28. Auxiliary rod; 29. ​​Auxiliary frame; 30. Positioning frame; 31. Liquid collection cylinder; 32. Piston rod; 33. One-way liquid inlet valve pipe; 34. One-way liquid outlet valve pipe; 35. Atomizing nozzle; 36. Connecting pipe; 37. Liquid collection box; 38. Conducting pipe; 39. Press valve; 40. Air guide pipe; 41. Discharge hole. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Example 1: Please refer to Figure 1 - Figure 7An outdoor low-voltage cable branch box includes a hollow base 1, a box body 2 fixed to the top of the hollow base 1, and a sealing door 3 rotatably installed on one side of the box body 2. A fixing seat 4 is fixed on the bottom wall of the hollow base 1, and a power distribution module 5 is fixed on the top of the fixing seat 4. A rectangular frame 6 is provided inside the edge of the hollow base 1. A driving component is provided on one side of the rectangular frame 6. An arc-shaped cover 11 is fixedly installed on the outside of the four side walls of the rectangular frame 6. A dehumidification component is provided inside the arc-shaped cover 11. An isolation component is provided on the inner wall of the side of the hollow base 1 closest to the arc-shaped cover 11. The dehumidification component includes a rotating roller 13 and a water-absorbing cloth sleeve 14. The rotating roller 13 is rotatably installed inside one side of the arc-shaped cover 11, and the water-absorbing cloth sleeve 14 is sleeved and fixed on the outer surface of the rotating roller 13.

[0035] The drive assembly includes a guide rod 7, a drive motor 8, and a reciprocating screw 9. The guide rod 7 is longitudinally fixed inside one side of the corner of the cavity base 1. The drive motor 8 is fixedly installed on one side of the bottom wall of the cavity base 1. The reciprocating screw 9 is threaded through and installed inside one side of the rectangular frame 6. The output end of the drive motor 8 is coaxially fixed with one end of the reciprocating screw 9. The rectangular frame 6 is slidably installed on one side of the guide rod 7 outside the side away from the reciprocating screw 9.

[0036] A mixing tank 10 is fixedly installed on the side of the rectangular frame 6 near the arc-shaped cover 11. An inverted cone-shaped guide cover 12 is fixedly installed through the top of the mixing tank 10. The top of the guide cover 12 is fixedly connected through the bottom of the arc-shaped cover 11. An abutting scraper 15 is fixedly installed on the inner wall of one side of the bottom of the arc-shaped cover 11. One side of the abutting scraper 15 is in contact with one side of the absorbent cloth cover 14.

[0037] The isolation assembly includes an isolation cover 16 and a vent pipe 40. The isolation cover 16 is fixedly installed on the inner wall of one side of the cavity base 1. The opening end of the isolation cover 16 corresponds to the opening end of the arc-shaped cover 11. The vent pipe 40 is fixedly installed inside one end of the isolation cover 16. The input end of the vent pipe 40 is located on the side close to the power distribution module 5. The side of the isolation cover 16 away from the vent pipe 40 has a discharge hole 41.

[0038] A limiting cavity 17 is opened inside the isolation cover 16 near the top of the arc-shaped cover 11. A sliding plate 18 is slidably engaged inside the limiting cavity 17. Several abutting springs 20 are fixedly installed between one side of the sliding plate 18 and one side of the inner wall of the limiting cavity 17. An arc-shaped abutting block 19 is fixedly installed on the side of the sliding plate 18 near the arc-shaped cover 11.

[0039] In this embodiment, when the outdoor low-voltage cable branch box is in use, a humidity sensor is pre-installed inside the box 2. This sensor is used to monitor the humidity inside the box 2 in real time to determine whether the dehumidification function needs to be activated. The box 2, which is fixed to the top of the cavity base 1, provides a protective shell for the entire device. The fixing seat 4 on the bottom wall of the cavity base 1 is used to support and fix the power distribution module 5. As a core power distribution component in the prior art, the power distribution module 5 continuously performs power transfer and distribution functions during equipment operation. The sealing door 3, which is rotatably installed on one side of the box 2, facilitates subsequent maintenance personnel to inspect and repair the internal components.

[0040] In the initial state, if the humidity inside the housing 2 does not exceed the standard (no obvious condensation, and the moisture is within the safe range), the equipment is in the isolation protection mode. At this time, the isolation component on the inner wall of the cavity base 1 near the arc-shaped cover 11 is in working condition: the opening end of the isolation cover 16 corresponds to the opening end of the arc-shaped cover 11 fixed on the outside of the side wall of the rectangular frame 6. In the limiting cavity 17 inside the top side of the isolation cover 16, the sliding plate 18 slides towards the arc-shaped cover 11 under the elastic force of several abutment springs 20, thereby driving the arc-shaped abutment block 19 fixed on one side of the sliding plate 18 to tightly abut against the outer side wall of the arc-shaped cover 11, so as to achieve a sealed connection between the opening end of the arc-shaped cover 11 and the opening end of the isolation cover 16.

[0041] Meanwhile, a fixed air duct 40 runs through one end of the isolation cover 16, with its input end located near the power distribution module 5. During operation, the power distribution module 5 naturally generates heat, and the hot air generated by this heat enters the isolation cover 16 through the air duct 40 and then enters the arc-shaped cover 11 through the sealed opening. This continuously blows hot air to dry the rotating roller 13 inside the arc-shaped cover 11 and the absorbent cloth sleeve 14 fixed to the outer surface of the rotating roller 13, preventing the absorbent cloth sleeve 14 from becoming damp and moldy due to residual moisture inside the box 2 when idle. Excess hot air inside the arc-shaped cover 11 is discharged through the exhaust hole 41 on the side of the isolation cover 16 away from the air duct 40, forming a hot air circulation to ensure that the dehumidification components are always in a dry state, achieving the effect of isolation and protection.

[0042] It should also be noted that when the humidity sensor inside the housing 2 detects excessive humidity, such as condensation on the inner wall or excessive moisture in the air, it will automatically trigger the dehumidification mode. The specific process is as follows: the drive motor 8 fixed on one side of the bottom wall of the cavity base 1 starts working, and the drive motor 8 drives the reciprocating screw 9 to rotate synchronously. Since the rectangular frame 6, on the side away from the reciprocating screw 9, is internally slidably mounted on the outside of the guide rod 7, which is longitudinally fixed at the corner of the cavity base 1, the guide rod 7 provides longitudinal guidance for the rectangular frame 6. The rotation of the reciprocating screw 9 is converted into the rectangular frame 6 moving along the guide rod 7. As the guide rod 7 moves longitudinally, the rectangular frame 6 moves, causing the arc-shaped covers 11 fixed to its four side walls to move synchronously. The rotating rollers 13 inside the arc-shaped covers 11 then move closer to the inner wall of the box 2, ultimately causing the absorbent cloth sleeves 14, which are fitted onto the outer surface of the rotating rollers 13, to tightly adhere to the inner wall of the box 2. As the rectangular frame 6 continues to move, the rotating rollers 13 maintain their rotation under the frictional force generated by slight contact with the inner wall of the box 2, thereby causing the absorbent cloth sleeves 14 to roll along the inner wall of the box 2. The absorbent cloth sleeves 14 effectively absorb condensation on the inner wall of the box 2. Compared to the passive adsorption of traditional activated carbon, the active absorption of condensation is more thorough and has a better dehumidification effect, meeting the needs of high-humidity outdoor environments. During the rotation of the rotating roller 13, the contact scraper 15 fixed on one side of the inner wall of the bottom of the arc-shaped cover 11 always contacts and adheres to one side of the absorbent cloth sleeve 14. As the absorbent cloth sleeve 14 rotates, the contact scraper 15 squeezes out the water absorbed by the absorbent cloth sleeve 14. The squeezed water falls into the inverted cone-shaped guide cover 12 that runs through and is fixed between the bottom of the arc-shaped cover 11 and the mixing tank 10. With the guidance of the guide cover 12, the water is further absorbed... The condensate is collected inside the mixing tank 10 fixed on the side of the rectangular frame 6 near the arc-shaped cover 11, realizing the recycling of condensate. This eliminates the need for frequent manual replacement of moisture-absorbing consumables, greatly reducing the workload of operation and maintenance, and thus completing the dehumidification operation inside the box 2. When the humidity sensor detects that the humidity inside the box 2 has dropped to a safe range, the drive motor 8 drives the reciprocating screw 9 to rotate in the opposite direction. The rectangular frame 6 resets along the guide rod 7, and the arc-shaped cover 11, rotating roller 13, and absorbent cloth cover 14 return to their initial positions with the rectangular frame 6. The equipment switches back to the isolation protection mode and waits for the next dehumidification trigger.

[0043] Example 2: Please refer to Figure 8 - Figure 13 This embodiment further illustrates Example 1: a liquid collection box 37 is fixedly installed on the top of the box 2, and a driving liquid spraying assembly is provided on one side of the arc-shaped cover 11.

[0044] The driving spray assembly includes a gear 21, a rotating disk 24, and a nozzle tube 34. The gear 21 is fixedly installed outside one end of the rotating roller 13. The rotating disk 24 is located outside one side of the gear 21. The nozzle tube 34 is fixedly installed outside the top side of the arc-shaped cover 11 near the inner wall of the housing 2. A ratchet 22 is meshed on one side of the gear 21.

[0045] A rotating shaft 23 is fixedly installed through the middle of the ratchet 22. One end of the rotating shaft 23 is rotatably installed on the outside of one side of the arc-shaped cover 11. The middle of the rotating disk 24 is fixedly installed on the outside of one end of the rotating shaft 23. A positioning post 25 is fixedly installed on the outer edge of the rotating disk 24 away from the rotating shaft 23. A movable frame 26 is slidably installed through the outside of the positioning post 25. An auxiliary rod 27 is longitudinally fixed at the middle of the top of the movable frame 26. An auxiliary frame 28 is slidably installed through the top of the auxiliary rod 27. One side of the auxiliary frame 28 is fixedly installed on the outside of one side of the arc-shaped cover 11.

[0046] A piston rod 31 is longitudinally fixedly installed at the bottom center of the movable frame 26. A liquid collecting cylinder 30 is slidably and sealed through the outside of the piston rod 31. A positioning frame 29 is fixedly installed on one side of the liquid collecting cylinder 30. One end of the positioning frame 29 is fixedly installed on the outside of one side of the arc-shaped cover 11. A one-way liquid inlet valve pipe 32 and a one-way liquid outlet valve pipe 33 are fixedly installed through the bottom of the liquid collecting cylinder 30.

[0047] The input end of the one-way liquid inlet valve pipe 32 is fixed inside the bottom side of the mixing tank 10, and the output end of the one-way liquid outlet valve pipe 33 is fixed inside the side of the nozzle pipe 34. Several atomizing nozzles 35 are fixed at equal intervals on the side of the nozzle pipe 34 near the inner wall of the box 2.

[0048] A connecting pipe 36 is fixedly installed through the top of the mixing tank 10. A guide pipe 38 is fixedly installed through the bottom side of the liquid collection box 37 near the connecting pipe 36. A press valve 39 is fixedly installed through one side of the guide pipe 38.

[0049] In this embodiment, the second embodiment of the outdoor low-voltage cable branch box is based on the dehumidification function of the first embodiment, and further adds a liquid spray protection mechanism. The specific working process needs to be carried out in conjunction with the reset stage after dehumidification and the liquid injection and spraying actions. The liquid collection box 37 fixed at the top of the box 2 is used to pre-store hydrophobic emulsion.

[0050] When the dehumidification process in Example 1 is completed, that is, when the humidity sensor detects that the humidity inside the box 2 has dropped to a safe range, the rectangular frame 6 is lifted into place by the drive component. The mixing tank 10 fixed on the side of the rectangular frame 6 near the arc-shaped cover 11, and the connecting pipe 36 fixed through its top will be lifted with the rectangular frame 6 and precisely aligned with the guide pipe 38 fixed through the bottom side of the liquid collection box 37 at the top of the box 2. After alignment, the press valve 39 fixed through the inside of the guide pipe 38 will automatically open, and the hydrophobic emulsion stored in the liquid collection box 37 will flow into the connecting pipe 36 through the guide pipe 38 and finally be injected into the mixing tank 10. At this time, the condensate water squeezed and recovered in Example 1 has been collected in the mixing tank 10. The hydrophobic emulsion and the condensate water are naturally mixed in the mixing tank 10 to form a hydrophobic mixture that can be sprayed. It can be evenly dispersed without additional stirring, which is ready for subsequent spraying.

[0051] After the liquid mixing is completed, the drive assembly begins to lower and reset the rectangular frame 6. The drive motor 8 on one side of the bottom wall of the cavity base 1 rotates in the opposite direction, driving the reciprocating screw 9 to rotate in the opposite direction. The rectangular frame 6 descends steadily along the guide rod 7, simultaneously driving the arc-shaped cover 11, the rotating roller 13, and the absorbent cloth sleeve 14 to descend to their initial positions. During the descent, the rotating roller 13 maintains its rotation under the slight contact friction with the inner wall of the housing 2. The gear 21, which is fixed through one end of the roller 13, rotates synchronously. Since a ratchet 22 is meshed on one side of the gear 21, the rotation of the gear 21... This will drive the ratchet 22 to rotate (when the rotating roller 13 is performing upward wiping, the gear 21 will not drive the ratchet 22 to rotate), which in turn drives the rotating shaft 23, which is fixed through the middle of the ratchet 22, to rotate synchronously. When the rotating shaft 23 rotates, the rotating disk 24, which is fixed to the outside of one end, will rotate accordingly. The positioning post 25, which is fixed at the outer edge of the rotating disk 24 away from the rotating shaft 23, will move along the circumferential trajectory of the rotating disk 24. The movable frame 26, which is slidably installed laterally through the positioning post 25, will reciprocate under the drive of the positioning post 25. When the movable frame 26 reciprocates, the longitudinal section of its bottom middle part... The fixed piston rod 31 slides through the liquid collecting cylinder 30, and the fixed one-way inlet valve pipe 32 and one-way outlet valve pipe 33 at the bottom of the liquid collecting cylinder 30 work together to control the liquid flow direction: when the piston rod 31 is pulled outward, the one-way inlet valve pipe 32 opens, and the hydrophobic mixture in the mixing tank 10 is drawn into the liquid collecting cylinder 30; when the piston rod 31 is pushed inward, the one-way outlet valve pipe 33 opens, and the mixture in the liquid collecting cylinder 30 is forced into the nozzle pipe 34. After the hydrophobic mixture enters the nozzle pipe 34, it will be evenly atomized and sprayed onto the area that has just been wiped by the atomizing nozzle 35. A dense hydrophobic layer is formed on the inner wall of the box 2. This hydrophobic layer can significantly reduce the hydrophilicity of the inner wall of the box 2, making it difficult for water vapor in the subsequent environment to adhere to and condense on the wall surface. This inhibits the regeneration of condensation from the source and avoids the limitation of traditional dehumidification that only treats existing condensation and cannot prevent new condensation. At the same time, the condensate water in the mixed liquid comes from the water recovered from the previous dehumidification, realizing resource recycling without the need for additional liquid replenishment. Moreover, the entire spraying process is triggered by the downward reset of the rectangular frame 6, without the need for additional drive components, reducing energy consumption while achieving a seamless connection between dehumidification and protection.

[0052] It should also be noted that when the rotating disk 24 rotates, the positioning post 25 on its edge will drive the externally mounted moving frame 26 to make a complete reciprocating motion along the guide of the auxiliary frame 28. The piston rod 31 at the bottom of the moving frame 26 will then pass through the sliding seal collection cylinder 30 once, drawing a mixture from the mixing tank 10 through the one-way inlet valve pipe 32, and pressing it into the nozzle pipe 34 through the one-way outlet valve pipe 33. Finally, the atomizing nozzle 35 on the side of the nozzle pipe 34 closest to the inner wall of the box 2 will complete a spray. This linkage relationship, in which the rotating roller 13 rotates once and drives the spraying assembly to complete a spray, naturally forms a gap between two sprays, avoiding excessive consumption of the mixture caused by continuous spraying. After the spraying is completed, the rectangular frame 6 continues to drive the arc-shaped cover 11 and the rotating roller 13 to descend synchronously by a certain distance. At this time, the atomized mixture sprayed from the atomizing nozzle 35 will slowly flow downward due to its own gravity and the hydrophobicity of the inner wall of the box 2. This flowing mixture will fill Figure 13 The key areas marked with dashed boxes feature an intermittent spraying design that matches the spray volume of each application to the required hydrophobic layer thickness on the inner wall of the housing 2. This allows for on-demand supply without additional flow control, further reducing the ineffective consumption of the mixed solution and balancing hydrophobic protection with resource conservation.

[0053] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0054] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An outdoor low-voltage cable branch box, comprising a hollow base (1), a box body (2) fixed to the top of the hollow base (1), and a sealing door (3) rotatably mounted on one side of the box body (2), characterized in that: A fixing seat (4) is fixed on the bottom wall of the cavity base (1), and a power distribution module (5) is fixed on the top of the fixing seat (4). A rectangular frame (6) is set inside the edge of the cavity base (1). A driving component is set on one side of the rectangular frame (6). An arc-shaped cover (11) is fixedly installed on the four side walls of the rectangular frame (6). A dehumidification component is set inside the arc-shaped cover (11). An isolation component is set on the inner wall of the cavity base (1) near the arc-shaped cover (11). A liquid collection box (37) is fixedly installed on the top of the box (2). A driving spray component is set on one side of the arc-shaped cover (11). The dehumidification assembly includes a rotating roller (13) and an absorbent cloth sleeve (14). The rotating roller (13) is rotatably installed inside one side of the arc-shaped cover (11), and the absorbent cloth sleeve (14) is fitted and fixed on the outer surface of the rotating roller (13). The drive assembly includes a guide rod (7), a drive motor (8), and a reciprocating screw (9). The guide rod (7) is longitudinally fixed inside one side of the corner of the cavity base (1). The drive motor (8) is fixedly installed on one side of the bottom wall of the cavity base (1). The reciprocating screw (9) is threaded inside one side of the rectangular frame (6). The output end of the drive motor (8) is coaxially fixed with one end of the reciprocating screw (9). The rectangular frame (6) is slidably installed on the outside of one side of the guide rod (7) on the side away from the reciprocating screw (9). A mixing tank (10) is fixedly installed on the side of the rectangular frame (6) near the arc-shaped cover (11). A conical guide cover (12) is fixedly installed through the top of the mixing tank (10). The top of the guide cover (12) is fixedly connected through the bottom of the arc-shaped cover (11). An abutting scraper (15) is fixedly installed on the inner wall of one side of the bottom of the arc-shaped cover (11). One side of the abutting scraper (15) is in contact with one side of the absorbent cloth cover (14).

2. The outdoor low-voltage cable branch box according to claim 1, characterized in that: The isolation assembly includes an isolation cover (16) and a vent pipe (40). The isolation cover (16) is fixedly installed on the inner wall of one side of the cavity base (1). The opening end of the isolation cover (16) corresponds to the opening end of the arc-shaped cover (11). The vent pipe (40) is fixedly installed inside one end of the isolation cover (16). The input end of the vent pipe (40) is located on the side close to the power distribution module (5). The side of the isolation cover (16) away from the vent pipe (40) has a discharge hole (41).

3. An outdoor low-voltage cable branch box according to claim 2, characterized in that: The isolation cover (16) has a limiting cavity (17) inside the side near the top of the arc-shaped cover (11). A sliding plate (18) is slidably engaged inside the limiting cavity (17). Several abutting springs (20) are fixedly installed between one side of the sliding plate (18) and one side of the inner wall of the limiting cavity (17). An arc-shaped abutting block (19) is fixedly installed on the side of the sliding plate (18) near the arc-shaped cover (11).

4. An outdoor low-voltage cable branch box according to claim 1, characterized in that: The driving spray assembly includes a gear (21), a rotating disk (24), and a nozzle tube (34). The gear (21) is fixedly installed outside one end of the rotating roller (13). The rotating disk (24) is located outside one side of the gear (21). The nozzle tube (34) is fixedly installed outside the top side of the arc-shaped cover (11) near the inner wall of the housing (2). A ratchet (22) is meshed on one side of the gear (21).

5. An outdoor low-voltage cable branch box according to claim 4, characterized in that: A rotating shaft (23) is fixedly installed through the middle of the ratchet (22). One end of the rotating shaft (23) is rotatably installed on the outside of one side of the arc-shaped cover (11). The middle of the rotating disk (24) is fixedly installed on the outside of one end of the rotating shaft (23). A positioning post (25) is fixedly installed on the outer edge of the rotating disk (24) away from the rotating shaft (23). A movable frame (26) is slidably installed through the outside of the positioning post (25). An auxiliary rod (27) is longitudinally fixed at the middle of the top of the movable frame (26). An auxiliary frame (28) is slidably installed through the top of the auxiliary rod (27). One side of the auxiliary frame (28) is fixedly installed on the outside of one side of the arc-shaped cover (11).

6. An outdoor low-voltage cable branch box according to claim 5, characterized in that: A piston rod (31) is longitudinally fixedly installed at the middle of the bottom end of the movable frame (26). A liquid collecting cylinder (30) is slidably and sealed through the outside of the piston rod (31). A positioning frame (29) is fixedly installed on one side of the liquid collecting cylinder (30). One end of the positioning frame (29) is fixedly installed on the outside of one side of the arc-shaped cover (11). A one-way liquid inlet valve pipe (32) and a one-way liquid outlet valve pipe (33) are fixedly installed through the bottom end of the liquid collecting cylinder (30).

7. An outdoor low-voltage cable branch box according to claim 6, characterized in that: The input end of the one-way liquid inlet valve pipe (32) is fixed inside the bottom side of the mixing tank (10), and the output end of the one-way liquid outlet valve pipe (33) is fixed inside the side of the nozzle pipe (34). Several atomizing nozzles (35) are fixed at equal intervals on the side of the nozzle pipe (34) near the inner wall of the box (2).

8. An outdoor low-voltage cable branch box according to claim 1, characterized in that: A connecting pipe (36) is fixedly installed through the top of the mixing tank (10), and a guide pipe (38) is fixedly installed through the bottom side of the liquid collection box (37) near the connecting pipe (36). A press valve (39) is fixedly installed through one side of the guide pipe (38).

Images