A cable branch box that can be quickly maintained

Abstract

The application discloses a cable branch box capable of being quickly maintained, which comprises a box body, a ventilation box is fixedly arranged on each side of the box body, a first filter screen is arranged in the middle of the ventilation box cavity and separates the ventilation box cavity, a fan assembly is arranged on one side of the ventilation box cavity close to the box body, limiting assemblies are symmetrically arranged on the two side walls in the outer cavity of the ventilation box, a plurality of wind blocking assemblies are arranged between the limiting assemblies from top to bottom, a dust collecting port is formed in the lower end face of the ventilation box, a dust collecting assembly is arranged on the lower end of the dust collecting port, a plurality of air ducts are arranged on the lower end of the dust collecting assembly, a second filter screen is arranged on the lower opening of the box body, a cleaning device is arranged on the lower end of the second filter screen, and an air inlet assembly is arranged on the lower end face of the box body and is in transmission connection with the cleaning device.

Description

Technical Field

[0001] This invention relates to the field of electrical equipment technology, specifically to a cable branch box that can be quickly maintained. Background Technology

[0002] Cable distribution boxes, as core electrical equipment for cable branching, switching, and splicing in power distribution networks, are widely used in urban residential areas, commercial centers, industrial parks, and municipal roads. They play a crucial role in the rational allocation of power resources and ensuring stable power supply to various load points. Their operational stability, safety, and ease of maintenance directly affect the power supply reliability and operation and maintenance efficiency of the power distribution network. With the acceleration of urbanization and the increasing complexity of power grids, the installation environment of cable distribution boxes is becoming more diverse. External factors such as outdoor dust, moisture, and debris, as well as the heat generated by internal electrical components during operation, all place higher demands on the long-term stable operation of distribution boxes.

[0003] In existing technologies, cable distribution boxes typically have ventilation openings or fan assemblies installed on the box to achieve heat dissipation. Air circulation removes heat from the box, preventing aging of internal insulation materials and electrical component failures caused by high temperatures, which could lead to short circuits, tripping, and other power supply accidents. However, this ventilation structure also allows outdoor dust and debris to easily enter the box through the openings. This dust not only adheres to the surfaces of electrical components, affecting their heat dissipation efficiency and insulation performance, but also accumulates on the ventilation filters, causing blockages in the ventilation channels. This further exacerbates the heat dissipation pressure inside the box, and in severe cases, can cause the distribution box to malfunction and shut down, affecting the normal power supply of the power grid. Therefore, frequent maintenance by staff is necessary to ensure the safe operation of the cable distribution box.

[0004] To address the aforementioned ventilation and maintenance issues, existing technologies, such as the high-efficiency heat dissipation cable distribution box described in application number 202511165984.3, automatically clean the cable distribution box when the door is opened during proactive maintenance. However, in daily use, the accumulation of dust and debris affects the heat dissipation of the cable distribution box. Although opening the door allows for cleaning, frequent visits by staff are required to ensure the cable distribution box remains clean at all times. Therefore, existing technologies currently have many problems in practical applications. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the present invention provides a cable branch box that can be quickly maintained, thus solving the technical problems mentioned in the background art.

[0006] The technical solution of this invention is as follows: To achieve the above objectives, the present invention provides the following technical solution: a cable branch box with rapid maintenance, comprising a box body, a ventilation box fixedly installed on both sides of the box body, a first filter screen dividing the ventilation box cavity in the middle, a fan assembly mounted on the side of the ventilation box cavity near the box body, symmetrically arranged limiting components laid on the inner side walls of the outer cavity of the ventilation box, multiple wind-blocking components arranged from top to bottom between the limiting components, a dust collection port opened on the lower end of the ventilation box, a dust collection assembly receiving the lower end of the dust collection port, multiple air ducts arranged at the lower end of the dust collection assembly, an opening provided at the lower end of the box body and a second filter screen installed in the opening, a cleaning device fitted to the second filter screen at the lower end of the second filter screen, and an air inlet assembly drivenly connected to the cleaning device on the lower end of the box body.

[0007] Preferably, the front end of the housing is open and the opening is provided with an openable door panel, the inner cavity of the housing is connected to the ventilation box cavities on both sides, and the two ventilation boxes have air outlets on the end face away from the housing.

[0008] Preferably, the upper end of the first filter screen is fixedly installed in the middle of the top surface of the ventilation box cavity, and the first filter screen is inclined towards the side closer to the box body. The lower end of the first filter screen is fixedly installed behind the dust collection port so that dust falls naturally into the dust collection port. The area of ​​the first filter screen is the same as the cross-sectional area of ​​the inner cavity of the box body and completely separates the ventilation box cavity.

[0009] Preferably, the fan assembly includes a bracket, which is fixedly installed at the connection port between the housing and the ventilation box. An exhaust fan is rotatably mounted in the middle of the bracket, and a drive motor is coaxially connected to the rear end of the exhaust fan. The fan assembly also includes a cover that covers the exhaust fan and is located at the connection port between the housing and the ventilation box. The cover is a filter structure.

[0010] Preferably, the limiting component includes mounting grooves continuously arranged along the length and tilt angle of the first filter on both sides of the ventilation box. Each mounting groove has at least three slots, each slot has a spring, and each spring has a plug inserted into it.

[0011] Preferably, a fixed shaft is connected between the corresponding plugs on both sides of the inner wall of the ventilation box. A first brush head is provided on the inner side of the fixed shaft and attached to the first filter screen. A first connecting rod connected to the windproof assembly is also axially connected to the fixed shaft.

[0012] Preferably, the windbreak assembly includes multiple baffles arranged in a vertical array and parallel to each other. One end of each baffle is provided with a hinged shaft, which is rotatably disposed between the inner walls of both sides of the ventilation box to control the opening and closing of the baffles. Vertically extending connectors are provided in the middle of both sides of the baffles. The other end of the first connecting rod is axially connected to the connector. When the baffles open and close, the first brush head is moved on the surface of the first filter screen. Both sides of one hinged shaft extend to the outer end of the ventilation box. A first protrusion is provided on the extended end of the hinged shaft, which is perpendicular to the hinged shaft. The first protrusion is connected to the air inlet assembly for transmission.

[0013] Preferably, the air intake assembly includes multiple fixing rings disposed on the front and rear sides of the lower end of the housing, with the fixing rings on the front and rear sides corresponding to each other. A rotating shaft is rotatably mounted between the corresponding fixing rings. A downwardly extending baffle is provided on the rotating shaft. Both ends of the two rotating shafts on the left and right sides extend outwards. A second protrusion is provided on the extended end of the rotating shaft and is perpendicular to the rotating shaft. A second connecting rod is axially connected between the second protrusion and the first protrusion. The rotation of the baffle pulls the baffle to close through the second connecting rod. A transmission gear extending upwards in the middle of the rotating shaft has an arc-shaped structure and is connected to the cleaning assembly for transmission.

[0014] Preferably, the cleaning component includes slide rails disposed on the front and rear sides of the lower end of the housing with opposite openings, multiple slide rods are mounted between the slide rails, a second brush head is disposed at the upper end of the slide rod and attached to the bottom of the housing, and a toothed rail is disposed through the middle of the multiple slide rods and meshes with a transmission gear.

[0015] Preferably, the dust collection assembly includes an installation cavity at the lower end of the ventilation box, in which a dust collection box is removably installed. The dust collection box is positioned at the lower end of the dust collection port. The lower end of the installation cavity is also provided with an air duct. The air ducts are rectangular structures with open ends, and the spacing between the air ducts is a tapered structure that decreases in width from the outside to the inside.

[0016] Beneficial effects This invention provides a device for recycling and reusing plastic packaging bags, which has the following beneficial effects: (1) The device actively exhausts air by opening ventilation boxes on both sides of the box and installing active exhaust fans inside the ventilation boxes, thereby increasing the heat dissipation effect of the box. The lower opening of the ventilation box is equipped with a second filter screen to increase the entry channel of external air, forming an air circulation path and improving the heat dissipation efficiency of the box.

[0017] (2) The device has an air intake component installed at the lower end of the second filter. When the environment is windy, the wind drives the air through the air duct to further increase the speed and blow the baffle plate to swing in the direction of the wind. First, the baffle plate can prevent the air from blowing directly into the box. The air intake speed is weakened and controlled to make the air circulation more natural and avoid direct blowing to damage the internal components of the cabinet. Second, during the swing of the baffle plate, the cleaning component can also perform autonomous cleaning work through the wind. When the baffle plate swings in the direction of the wind, the transmission gear drives the toothed rail to move in the slide rail and drives the slide rod to clean the dust blocked on the lower end of the second filter. At the same time, the swing of the baffle plate pulls the baffle through the second connecting rod, so that the baffle on the opposite side closes. The baffle on the side of the wind increases the air outlet area and improves the air outlet efficiency. While quickly cooling the internal components, it avoids the direct blowing of air to the box and causing damage to the internal components. Due to the influence of components, and during the closing process of the baffle, the fixed shaft is moved along the laying direction of the mounting groove by the first pull rod, which drives the first brush head on the first pull rod to clean the dust on the first filter screen. Since the ventilation box is facing the fast-flowing air in the opposite direction of the wind, when the wind force is greater than the exhaust fan's exhaust force, the ventilation box is in a negative pressure state. The exhaust fan's wind force is less than the ambient wind force. Due to the negative pressure, the ambient wind force can enter the ventilation box. After the wind force is weakened by the baffle, it enters the ventilation box and blows the dust cleaned by the first brush head along the first filter screen to fall naturally into the dust collection box for autonomous collection. When the staff performs maintenance, they only need to pull out the dust collection box to complete the cleaning, which is simple and convenient. Under normal conditions, the elasticity of the spring will restore the baffle and wind deflector to their normal state. Under normal conditions, the equipment can complete autonomous cleaning and self-protection by relying on the state of the natural environment, making it more convenient to use and reducing the maintenance needs of the staff. Attached Figure Description

[0018] Figure 1 This is a front view of the overall structure of the device of the present invention; Figure 2 for Figure 1 A partial structural diagram of A in the middle; Figure 3 This is a schematic diagram of the internal structure of the housing of the device of the present invention; Figure 4 This is a schematic diagram of the air intake assembly structure of the device of the present invention; Figure 5 This is a cross-sectional view of the ventilation box of the device of the present invention; Figure 6 for Figure 6 A schematic diagram of the partial structure of B in the diagram.

[0019] In the diagram: 1. Housing; 101. Bracket; 102. Exhaust fan; 103. Drive motor; 104. Cover; 105. Second filter; 2. Ventilation box; 201. Air outlet; 202. First filter; 203. Dust collection port; 204. Mounting cavity; 205. Dust collection box; 3. Air duct; 4. Mounting groove; 401. Groove; 5. Spring; 501. Insert; 502. Fixed shaft; 503. First brush head; 6. Baffle; 601. Swing shaft; 602. Connector; 603. First protrusion; 7. First connecting rod; 701. Second connecting rod; 8. Fixing ring; 801. Rotating shaft; 802. Baffle plate; 803. Second protrusion; 804. Transmission gear; 9. Slide rail; 901. Gear rail; 902. Second brush head. Detailed Implementation

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0021] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0022] In the description of this invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "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 limitations on this invention. Example 1:

[0023] As a further technical solution in this embodiment, refer to Figure 1 , 3As shown in Figures 4 and 5, this invention discloses a cable branch box that can be quickly maintained. Specifically, it includes a box body 1, which is a hollow cuboid structure used to accommodate electrical components related to cable branching, transfer, and connection. The front end of the box body 1 is open, and a hinged door panel is connected to the opening. A sealing strip is provided between the door panel and the box body 1 to ensure the airtightness of the box body 1, preventing external dust and moisture from directly entering the box body 1. At the same time, it prevents negative pressure caused by the backflow of air when there is strong wind in the external environment, which would allow air to enter the box body 1 through the gaps and affect the normal operation of electrical components. A ventilation box 2 is fixedly installed on both sides of the box body 1. The inner cavity of the box body 1 and the inner cavities of the two ventilation boxes 2 are interconnected to form a ventilation and heat dissipation channel. An air outlet 201 is opened on the end face of each ventilation box 2 away from the box body 1. A protective net can be added to the air outlet 201 to further prevent external debris from entering the ventilation box 2.

[0024] As a further technical solution in this embodiment, refer to Figure 3 As shown, a first filter 202 is provided in the middle of the ventilation box 2 cavity. The first filter 202 is used to filter the air entering the ventilation box 2 and prevent dust and debris from entering the box 1. The upper end of the first filter 202 is fixedly installed in the middle of the top surface of the inner cavity of the ventilation box 2. The first filter 202 is inclined towards the side closer to the box 1. The lower end of the first filter 202 is fixedly installed behind the dust collection port 203. This inclined installation can utilize gravity and the blowing of dust when the air enters the ventilation box 2 due to negative pressure, so that the filtered dust naturally slides into the dust collection port 203 for subsequent collection. The area of ​​the first filter 202 is the same as the cross-sectional area of ​​the inner cavity of the box 1, and completely divides the ventilation box 2 cavity into an inner cavity closer to the box 1 and an outer cavity farther away from the box 1, ensuring that all air entering the ventilation box 2 must be filtered by the first filter 202 to ensure the filtration effect.

[0025] A fan assembly is mounted on the inner side of the ventilation box 2, near the box body 1. The fan assembly includes a bracket 101, which is fixedly installed at the communication port between the box body 1 and the ventilation box 2. The bracket 101 has a rectangular frame structure. An exhaust fan 102 is rotatably mounted on the middle of the bracket 101 via a bearing. The rear end of the exhaust fan 102 is coaxially connected to a drive motor 103 via a coupling. The drive motor 103 is fixed to the inner wall of the ventilation box 2 via the bracket 101. After the drive motor 103 is started, it can drive the exhaust fan 102 to rotate at high speed, realizing active ventilation. The fan assembly also includes a cover 104 covering the exhaust fan 102. The cover 104 is fixedly installed at the communication port between the box body 1 and the ventilation box 2. The cover 104 is a filter structure, which can perform secondary filtration on the air entering the box body 1, further improving the filtration effect, while preventing components from being drawn into the exhaust fan 102 during operation, ensuring the stable operation of the fan assembly.

[0026] As a further technical solution in this embodiment, refer to Figure 5 , 6 As shown, limiting components are laid on the two side walls of the outer cavity of the ventilation box 2. The limiting components on both sides are symmetrically arranged. The limiting components include mounting grooves 4 continuously arranged on the two side walls of the ventilation box 2 along the length and tilt angle of the first filter screen 202. Each mounting groove 4 is provided with at least three slots 401. The slots 401 are elongated and aligned with the tilt direction of the first filter screen 202. A spring 5 is fixedly installed in each slot 401. A plug 501 is inserted into each spring 5. A gasket integral with the plug 501 is provided between the contact end of the plug 501 and the top of the spring 5. The gasket is used to limit the plug 501 and increase the contact area of ​​the plug 501 when the spring 5 is pressed down in the working state. The plug 501 can slide along the length of the slot 401. The elastic force of the spring 5 can reset the plug 501, ensuring that the plug 501 maintains its initial position when no external force is applied.

[0027] A fixed shaft 502 is connected between corresponding inserts 501 on both sides of the inner wall of the ventilation box 2. The fixed shaft 502 is parallel to the inclination direction of the first filter screen 202. A first brush head 503 is fixedly installed on the inner side of the fixed shaft 502, that is, on the side closer to the first filter screen 202. The bristles of the first brush head 503 are in close contact with the surface of the first filter screen 202 to ensure effective cleaning of dust on the surface of the first filter screen 202. A first connecting rod 7 is also axially connected to the fixed shaft 502. The other end of the first connecting rod 7 is axially connected to the wind deflector assembly to realize the linkage between the fixed shaft 502 and the wind deflector assembly.

[0028] As a further technical solution in this embodiment, refer to Figure 5As shown, multiple wind-blocking components are arranged from top to bottom among the limiting components. Each wind-blocking component includes multiple baffles 6 arranged in a vertical array and parallel to each other. The number of baffles 6 is reasonably set according to the height of the ventilation box 2, preferably three. A swing shaft 601 is fixedly installed at one end of each baffle 6. The swing shaft 601 is rotatably installed between the inner walls of both sides of the ventilation box 2. The rotation of the swing shaft 601 can control the opening and closing of the baffle 6, thereby adjusting the air intake area of ​​the ventilation box 2. Vertically extending connecting members 602 are integrally formed in the middle of both sides of the baffle 6. The other end of the first connecting rod 7 is connected to the connecting rod 602. The connector 602 is axially connected. When the baffle 6 opens and closes around the hinged shaft 601, it will pull the fixed shaft 502 along the laying direction of the mounting groove 4 through the first connecting rod 7, thereby driving the first brush head 503 to slide on the surface of the first filter screen 202 to clean the first filter screen 202. Both sides of one of the hinged shafts 601 extend to the outer end of the ventilation box 2. The extended end of the hinged shaft 601 is integrally formed with a first protrusion 603 that is perpendicular to the hinged shaft 601. The first protrusion 603 is used to drive the air intake component to realize the coordinated work of the baffle component and the air intake component.

[0029] As a further technical solution in this embodiment, refer to Figure 5 As shown, the lower end face of the ventilation box 2 has a dust collection port 203, which is connected to the outer cavity of the ventilation box 2. A dust collection assembly is mounted at the lower end of the dust collection port 203. The dust collection assembly includes a mounting cavity 204 located at the lower end of the ventilation box 2, which is connected to the dust collection port 203. A dust collection box 205 is removably mounted inside the mounting cavity 204. The upper end of the dust collection box 205 is open, and the opening faces the dust collection port 203, for receiving dust from the first filter 202. The dust that falls off extends from the front end of the dust collection box 205 to the outside of the ventilation box 2, and the front end of the dust collection box 205 is provided with a handle, which makes it easy for staff to pull out the dust collection box 205 for cleaning; multiple air ducts 3 are also fixedly installed at the lower end of the mounting cavity 204. The air ducts 3 are all rectangular structures with open ends, and the spacing inside the air ducts 3 is a tapered structure that decreases in width from the outside to the inside. This tapered structure can increase the flow rate of outside air when it passes through the air ducts 3, which is convenient for driving the air intake components to work.

[0030] As a further technical solution in this embodiment, refer to Figure 4 As shown, the lower end of the housing 1 has an opening, and a second filter 105 is installed at the opening. The second filter 105 is used to filter the air entering from the lower end of the housing 1, further preventing dust from entering the interior of the housing 1. A cleaning device is provided at the lower end of the second filter 105. The cleaning device is fitted to the second filter 105 and is used to clean the dust on the lower surface of the second filter 105 to prevent the second filter 105 from becoming clogged. An air inlet assembly is also provided on the lower surface of the housing 1. The air inlet assembly is connected to the cleaning device and is used to drive the cleaning device to work.

[0031] As a further technical solution in this embodiment, refer to Figure 4 As shown, the air intake assembly includes multiple fixing rings 8 arranged on the front and rear sides of the lower end of the housing 1. The fixing rings 8 on the front and rear sides are arranged one-to-one, and a rotating shaft 801 is rotatably mounted between the corresponding fixing rings 8 via bearings. A downwardly extending wind deflector 802 is integrally formed on the rotating shaft 801. The wind deflector 802 is arranged perpendicular to the rotating shaft 801 and can rotate around the rotating shaft 801 under the action of wind force. Both ends of the two rotating shafts 801 on the left and right sides extend to the outside of the fixing rings 8. The extended ends of the rotating shafts 801 are integrally formed with the fixing rings 801. A second protrusion 803 is arranged perpendicularly to the first protrusion 603. A second connecting rod 701 is connected to the second protrusion 803 and the first protrusion 603 through a bearing shaft. When the baffle 802 rotates around the rotating shaft 801, it will pull the first protrusion 603 to rotate through the second connecting rod 701, thereby driving the swing shaft 601 to rotate, realizing the opening and closing of the baffle 6. A transmission gear 804 extends upward from the middle of the rotating shaft 801. The transmission gear 804 has an arc-shaped structure and is connected to the cleaning component for driving the cleaning component to work.

[0032] As a further technical solution in this embodiment, refer to Figure 4 As shown, the cleaning assembly includes slide rails 9 arranged on the front and rear sides of the lower end of the housing 1 with opposite openings. The slide rails 9 are fixed to the lower end face of the housing 1. Multiple slide rods are mounted between the slide rails 9. The two ends of the slide rods are slidably embedded in the slide rails 9 and can move back and forth along the slide rails 9. A second brush head 902 is fixed to the upper end of the slide rod by bolts. The bristles of the second brush head 902 are in close contact with the lower end face of the second filter screen 105 to ensure effective cleaning of dust on the lower end face of the second filter screen 105. A toothed rail 901 is arranged through the middle of the multiple slide rods. The toothed rail 901 is integrally formed with the slide rod. The toothed rail 901 is meshed with the transmission gear 804. When the transmission gear 804 rotates, it will drive the toothed rail 901 to move along the slide rail 9, thereby driving the slide rods and the second brush head 902 to move, thereby cleaning the second filter screen 105. Example 2:

[0033] refer to Figure 3Under normal operating conditions, the drive motor 103 starts, driving the exhaust fan 102 to rotate at high speed. The exhaust fan 102 draws the hot air inside the housing 1 to the inner cavity of the ventilation box 2, and then exhausts it through the outer cavity of the ventilation box 2 and the air outlet 201. Outside air enters the housing 1 after being filtered by the second filter 105 at the lower end of the housing 1, and is then replenished by the exhaust fan 102, forming a complete air circulation path, effectively removing the heat generated by the electrical components inside the housing 1 and improving heat dissipation efficiency. At this time, the elastic force of the spring 5 keeps the plug 501, fixed shaft 502, first connecting rod 7, baffle 6 and wind baffle 802 in their initial positions. The baffle 6 is in the open state to ensure smooth ventilation. The first brush head 503 is in contact with the first filter 202 but does not move, and the second brush head 902 is in contact with the second filter 105 but does not move.

[0034] When in a windy environment, the external wind acts on the air duct 3. Due to the conical structure of the air duct 3, the air velocity increases as it passes through it. The high-speed airflow causes the wind deflector 802 to swing in the downwind direction. As the wind deflector 802 swings, it drives the rotating shaft 801 to rotate around the fixed ring 8. On one hand, when the rotating shaft 801 rotates, the transmission gear 804 on it rotates synchronously. The transmission gear 804 drives the meshing gear rail 901 to move back and forth along the slide rail 9. The gear rail 901 drives the slide rod to move, and the slide rod drives the second brush head 902 to slide on the lower end face of the second filter screen 105, cleaning the dust clogging the lower end face of the second filter screen 105 and preventing the second filter from being blocked. The blockage of mesh 105 affects air intake; on the other hand, when the rotating shaft 801 rotates, the second protrusion 803 at its extended end rotates synchronously. The second protrusion 803 pulls the first protrusion 603 to rotate through the second connecting rod 701. The first protrusion 603 drives the swing shaft 601 to rotate, which in turn drives the baffle 6 to close around the swing shaft 601. After the baffle 6 of the ventilation box 2 on the windward side is closed, it can prevent high-speed airflow from blowing directly into the box 1, preventing impact and damage to the electrical components inside the box 1. The baffle 6 on the windward side is fully open, increasing the ventilation area, making the airflow faster, and simultaneously improving the heat dissipation inside the box 1.

[0035] Simultaneously, when the baffle 6 is closed, the first connecting rod 7 pulls the fixed shaft 502 to move along the laying direction of the mounting groove 4. The fixed shaft 502 drives the first brush head 503 to slide on the surface of the first filter screen 202 to clean the dust accumulated on the surface of the first filter screen 202. Since the ventilation box 2 is facing the fast-flowing air in the opposite direction of the wind, when the wind force is greater than the exhaust force of the exhaust fan 102, the outer cavity of the ventilation box 2 is in a negative pressure state. The high-speed airflow is weakened by the closed baffle 6 and enters the outer cavity of the ventilation box 2, blowing away the dust cleaned by the first brush head 503. Under the combined action of gravity and airflow, the dust naturally slides down the inclined first filter screen 202 to the dust collection port 203, and then falls into the dust collection box 205 to complete autonomous collection.

[0036] When maintenance is required, there is no need to disassemble the other structures of the housing 1 or ventilation box 2. Simply pull out the dust collection box 205 by the handle, clean the dust inside the dust collection box 205, and then insert the dust collection box 205 back into the mounting cavity 204. The operation is simple and convenient, enabling quick maintenance. When the wind disappears, the elastic force of the spring 5 pushes the plug 501 to reset along the mounting groove 4. The plug 501 drives the fixed shaft 502 to reset. The fixed shaft 502 pulls the baffle 6 to reset and open through the first connecting rod 7. At the same time, the fixed shaft 502 drives the first brush head 503 to reset. While the fixed shaft 502 is resetting, the second protrusion 803 is pulled to reset through the second connecting rod 701. The second protrusion 803 drives the rotating shaft 801 to reset. The rotating shaft 801 drives the wind baffle 802 and the transmission gear 804 to reset. The transmission gear 804 drives the gear rail 901 and the slide bar to reset. The second brush head 902 also resets, and the equipment returns to normal working condition.

[0037] When in a headwind state, the baffle 6 not only closes to block the direct wind from damaging the housing 1, but also drives the first brush head 503 to clean, achieving a step-by-step linkage action. Furthermore, even when stationary, the baffle 802 can effectively block the rapid flow of air and the direct blowing of air onto the second filter 105, preventing a large amount of dust from entering and reducing maintenance needs. In addition, during daily use, the equipment needs to perform cleaning operations under specific weather conditions, rather than continuous and uninterrupted cleaning. This also avoids wear and tear and lifespan reduction caused by the equipment automatically cleaning before dust accumulates excessively. Under normal weather conditions, the equipment performs normal self-heating. Under specific weather conditions, the equipment performs self-cleaning and self-protection. In windy weather, the swing of the baffle 802, driven by the wind and supported by the spring 5, repeatedly swings and performs linkage cleaning, thereby achieving the purpose of deep cleaning. This completes one cycle of self-cleaning. The staff only needs to replace and clean the dust collection box 205 regularly within specific maintenance periods to complete the maintenance work of the equipment in terms of heat dissipation and dust removal. Depending on the usage scenario, cleaning and maintenance are generally only required once every 6 months. However, since the time span is relatively long and there are many internal and external winds, this structure is designed with a cone-shaped channel inside the box that can amplify the natural wind force entering the box. Therefore, under natural conditions, as long as there is occasional suitable external wind blowing in within the time range, cleaning can be achieved once, which can meet the cleaning and maintenance needs.

[0038] The foregoing has shown and described the basic principles and main features of the present invention and its advantages. It will be apparent to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects. The scope of the present invention is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all changes falling within the meaning and scope of the equivalents of the claims be included within the present invention, and no reference numerals in the claims should be regarded as limiting the scope of the claims.

[0039] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A cable branch box with quick maintenance, comprising a box body (1), wherein a ventilation box (2) is fixedly installed on both sides of the box body (1), characterized in that: The ventilation box (2) is provided with a first filter (202) in the middle of the cavity, which divides the cavity of the ventilation box (2). A fan assembly is mounted on the side of the ventilation box (2) near the box (1). The two side walls of the outer cavity of the ventilation box (2) are covered with symmetrically arranged limiting components. Multiple wind-blocking components are arranged between the limiting components from top to bottom. A dust collection port (203) is opened on the lower end of the ventilation box (2). A dust collection component is provided at the lower end of the dust collection port (203). Multiple air ducts (3) are provided at the lower end of the dust collection component. The box (1) is opened at the lower end and a second filter (105) is installed at the opening. A cleaning device is provided at the lower end of the second filter (105) and is fitted with the second filter (105). An air inlet assembly that is connected to the cleaning device is also provided on the lower end of the box (1).

2. The cable branch box with rapid maintenance according to claim 1, characterized in that: The front end of the box (1) is open and the opening is provided with an openable door panel. The inner cavity of the box (1) is connected to the cavity of the ventilation boxes (2) on both sides. The two ventilation boxes (2) have an air outlet (201) on the end face away from the box (1).

3. The cable branch box with rapid maintenance according to claim 1, characterized in that: The upper end of the first filter (202) is fixedly installed in the middle of the top surface of the inner cavity of the ventilation box (2). The first filter (202) is inclined towards the side closer to the box body (1). The lower end of the first filter (202) is fixedly installed behind the dust collection port (203) so that dust can fall naturally into the dust collection port (203). The area of ​​the first filter (202) is the same as the cross-sectional area of ​​the inner cavity of the box body (1) and completely separates the cavity of the ventilation box (2).

4. The cable branch box with rapid maintenance according to claim 1, characterized in that: The fan assembly includes a bracket (101) which is fixedly installed at the communication port between the housing (1) and the ventilation box (2). An exhaust fan (102) is rotatably mounted in the middle of the bracket (101). A drive motor (103) is coaxially connected to the rear end of the exhaust fan (102). The fan assembly also includes a cover (104) which is covered outside the exhaust fan (102) and located at the port between the housing (1) and the ventilation box (2). The cover (104) is a filter structure.

5. A cable branch box with rapid maintenance according to claim 1, characterized in that: The limiting component includes mounting grooves (4) continuously arranged along the length and tilt angle of the first filter (202) on both sides of the ventilation box (2). Each mounting groove (4) is provided with at least three slots (401), and each slot (401) is provided with a spring (5). Each spring (5) is provided with a plug (501).

6. A cable branch box with rapid maintenance according to claim 5, characterized in that: A fixed shaft (502) is also connected between the corresponding plugs (501) on both sides of the inner wall of the ventilation box (2). A first brush head (503) is provided on the inner side of the fixed shaft (502) and attached to the first filter screen (202). A first connecting rod (7) connected to the windproof assembly is also axially connected on the fixed shaft (502).

7. A cable branch box with rapid maintenance according to claim 6, characterized in that: The windbreak assembly includes multiple baffles (6) arranged in a top-to-bottom array and parallel to each other. One end of the baffle (6) is provided with a hinged shaft (601). The hinged shaft (601) is rotatably arranged between the inner walls of both sides of the ventilation box (2) to control the opening and closing of the baffle (6). Vertically extending connectors (602) are provided in the middle of both sides of the baffle (6). The other end of the first connecting rod (7) is axially connected to the connector (602). When the baffle (6) opens and closes, it controls the first brush head (503) to move on the surface of the first filter screen (202). Both sides of the hinged shaft (601) extend to the outer end of the ventilation box (2). A first protrusion (603) is provided on the extended end of the hinged shaft (601) and is perpendicular to the hinged shaft (601). The first protrusion (603) is connected to the air intake assembly through the transmission.

8. A cable branch box with rapid maintenance according to claim 7, characterized in that: The air intake assembly includes multiple fixing rings (8) arranged on the front and rear sides of the lower end of the housing (1). The fixing rings (8) on the front and rear sides are arranged correspondingly. A rotating shaft (801) is rotatably installed between the corresponding fixing rings (8). A downwardly extending baffle (802) is provided on the rotating shaft (801). Both ends of the two rotating shafts (801) on the left and right sides are extended. A second protrusion (803) is arranged perpendicular to the rotating shaft (801) on the extended end of the rotating shaft (801). A second connecting rod (701) is axially connected between the second protrusion (803) and the first protrusion (603). The baffle (802) rotates and pulls the baffle (6) to close through the second connecting rod (701). A transmission gear (804) extends upward in the middle of the rotating shaft (801). The transmission gear (804) has an arc structure and is connected to the cleaning assembly.

9. A cable branch box with rapid maintenance according to claim 8, characterized in that: The cleaning component includes slide rails (9) arranged on the front and rear sides of the lower end of the housing (1) with their openings facing each other. Multiple slide rods are mounted between the slide rails (9). A second brush head (902) is mounted on the upper end of the slide rod and attached to the bottom of the housing (1). A toothed rail (901) is arranged through the middle of the multiple slide rods. The toothed rail (901) is meshed with a transmission gear (804).

10. A cable branch box with rapid maintenance according to claim 1, characterized in that: The dust collection assembly includes an installation cavity (204) at the lower end of the ventilation box (2), in which a dust collection box (205) is removably installed. The dust collection box (205) is located at the lower end of the dust collection port (203). The lower end of the installation cavity (204) is also provided with an air duct (3). The air ducts (3) are all rectangular structures with open ends. The spacing inside the air ducts (3) is a tapered structure that decreases in width from the outside to the inside.

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