Cable branch box with three-proofing function

Abstract

The invention discloses a cable branch box with a three-proofing function, and relates to the technical field of cable branch boxes. The cable box comprises a cable box body, two cabinet doors are arranged on the two sides of the front end of the cable box body in a mirror image mode and used for controlling opening and closing of the cable box body, two sets of heat dissipation grooves are formed in the two sides of the rear end of the cable box body, a three-proofing box is fixedly installed at the rear end of the cable box body, and a sun and rain heat dissipation adjusting device is arranged in the three-proofing box. Through the arrangement of the sun and rain heat dissipation adjusting equipment, four connecting plates horizontally move to drive four protection boxes to horizontally move, the four protection boxes horizontally move to drive four electric power heat dissipation equipment to horizontally move, and the four electric power heat dissipation equipment is set to be the maximum value when moving to the surface of a heat dissipation opening; after the four electric power heat dissipation devices are started, heat dissipation support on rainy days is continuously provided for electronic elements in the cable box body through the heat dissipation grooves by continuously attaching to the heat dissipation openings.

Description

Technical Field

[0001] This invention relates to the field of cable branch box technology, specifically to a cable branch box with three-proof functions. Background Technology

[0002] With the development of cable-based power distribution networks, when small-capacity independent loads are concentrated, cable branch boxes can be used to connect multiple branches of the cable, as branch boxes cannot directly operate on each branch. Cable branching is another function. On a long line, multiple small-area cables often lead to cable waste. Therefore, when the cable goes out to the load, a main cable is often used, and then near the load, a cable branch box is used to divide the main cable into several smaller-area cables, which are then connected to the load. This wiring method is widely used in urban power grids for powering streetlights and small users. Cable transfer is another function. On a long line, if the cable length cannot meet the line requirements, cable joints or cable transfer boxes must be used. For short distances, intermediate cable joints are usually used, but for longer lines, based on experience, on cable lines over 1000m, if there are multiple intermediate joints in the cable, cable branch boxes are considered for transfer to ensure safety. Cable distribution boxes are widely used outdoors. With the advancement of technology, cable distribution boxes with switches are becoming increasingly common. Urban cables often use a dual-circuit power supply method, so some people directly refer to distribution boxes with switches as outdoor ring main units. However, most of these ring main units cannot currently achieve distribution network automation. Nevertheless, some manufacturers have launched outdoor ring main units that can achieve distribution network automation, which has blurred the lines between cable distribution boxes and ring main units.

[0003] According to a published specification (Publication No.: CN211239294U), a moisture-proof cable branch box includes a box body. Support legs are fixedly connected to the bottom of the box body. An air inlet is located at the bottom of the box body. A first moisture-proof layer is movably connected to the inner wall of the air inlet. A heating grid is movably connected to one side of the first moisture-proof layer. A protective block is fixedly connected to the inner bottom wall of the box body. A spring is fixedly connected to the top of the protective block. One end of the spring is fixedly connected to an electrostatic chamber. A branching device is movably connected to the inner wall of the electrostatic chamber. This moisture-proof cable branch box achieves moisture protection, solving the problem that general cable branch boxes lack moisture protection. Furthermore, this device not only provides moisture protection but also dehumidifies, better maintaining the dryness inside the cable branch box and reducing a series of problems caused by moisture, thus meeting user needs.

[0004] The aforementioned application makes it difficult to provide heat dissipation support for the electronic components inside the cable box in rainy weather, and it is difficult to freely switch between waterproof, moisture-proof and heat dissipation functions in sunny and rainy weather. As a result, the electronic components of the cable box have developed safety hazards during actual use, leading to frequent maintenance of the cable box, which needs to be improved. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a cable branch box with three-proof functions, solving the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a cable distribution box with three-proof functions, comprising a cable box body, two cabinet doors mirror-imaged on both sides of the front end of the cable box body for controlling the opening and closing of the cable box body, two sets of heat dissipation slots on both sides of the rear end of the cable box body, a three-proof box fixedly installed at the rear end of the cable box body, and a weather-resistant heat dissipation regulating device inside the three-proof box; the weather-resistant heat dissipation regulating device includes two sets of heat dissipation vents mirror-imaged on both sides of the cable box body for dissipating heat from the inside of the cable box body during sunny weather, a motor fixedly installed on the top of the inner wall of the three-proof box, a bidirectional threaded rod fixedly connected to the end of the output shaft of the motor, two internal threaded sleeves symmetrically threaded on the circumference of the bidirectional threaded rod, both of the two internal threaded sleeves slidingly connected along the inner side of the three-proof box to limit the displacement of the displacement internal threaded sleeves, and two... An adjusting rod is symmetrically fixedly connected to each side of the internal threaded sleeve. Two sets of control plates are slidably connected to the inner side of the cable box body. Four convex hollow blocks are fixedly connected to the opposite surfaces of the two sets of control plates. One end of each of the four convex hollow blocks is rotatably connected to a contact shaft. A force-bearing block and a sensing rod are fixedly installed on the circumferential surface of each of the four contact shafts. A connecting plate is fixedly connected to the inner side of each of the four convex hollow blocks. A protective box is fixedly installed at the lower end of each of the four connecting plates. A notch is opened on the side of each of the four protective boxes near the sensing rod. A set of power cooling devices is provided on the inner side of each of the four protective boxes for cooling the inside of the cable box body during rain. A piezoelectric relay is provided at the end of each of the four sets of power cooling devices near the notch. The four piezoelectric relays are communicatively connected to the four power cooling devices.

[0007] According to the above technical solution, a return spring is fixedly installed at both the upper and lower ends of the back surface of the two sets of control boards. The four return springs are arranged in pairs, with one end of each pair fixedly connected to the upper and lower ends of the inner side of the three-proof box. A fixed shaft is fixedly installed at one end of each of the four abutment shafts, and the circumferential ends of the four fixed shafts penetrate the sides of the four convex hollow blocks. A return torsion spring is fixedly sleeved on the circumferential surface of each of the four fixed shafts, and one end of each of the four return torsion springs is fixedly connected to an abutment shaft. In sunny conditions, the four force-bearing blocks lose their compressive force, and under the elastic action of the return springs, drive the two control boards to reset and slide, opening the two sets of heat dissipation vents. Under the torsion of the four return torsion springs, the four abutment shafts are forced to reset and rotate. The reset and rotation of the four abutment shafts drive the four sensing rods to reset and rotate. The pressure sensing ends of the four piezoelectric relays are no longer under pressure, thus shutting off the power cooling equipment and restoring the sunny cooling state.

[0008] According to the above technical solution, the four force-bearing blocks are arranged symmetrically in pairs on the displacement trajectory of the adjusting rod, and the pressure sensing ends of the four piezoelectric relays are located at the rotation radii of the four sensing rods. This design ensures that the force-bearing blocks are stably compressed during the rotation of the adjusting rod; and that the pressure sensing ends of the piezoelectric relays are stably compressed during the rotation of the sensing rods to activate the power cooling device.

[0009] According to the above technical solution, each of the four protective boxes is equipped with a set of electrical protection devices. Each electrical protection device includes a sliding plate, the rear end of which is welded to the front side of the protective box. A dustproof plate is slidably connected to the front sliding groove of the sliding plate via a slider. Two ventilation openings are provided at the lower center of the front end of the sliding plate. A lifting rod is fixedly connected to the front end of the circumference of the contact shaft. A limit rod passes through the top of the inner threaded limiting sleeve, and one end of the limit rod is fixedly connected to the top of the inner wall of the control board. The design of the electrical protection devices provides dust protection for the power cooling equipment in sunny conditions, preventing dust from entering the power cooling equipment through the ventilation openings and extending its service life.

[0010] According to the above technical solution, the two ventilation openings are initially covered by dustproof plates, and the front corner of the sliding plate is located on the displacement trajectory of the lifting rod. This design provides stable dust protection in sunny conditions.

[0011] According to the above technical solution, each of the two sets of control boards is equipped with a set of brushing and dust removal devices. Each brushing and dust removal device includes a central shaft, with its two ends rotatably connected to the top of the inner wall of the control board. A brush sleeve is fixedly fitted onto the circumferential surface of the central shaft. A guide tube is arrayed through the upper end of the circumferential surface of the brush sleeve. A water flow chamber is opened at the upper end of the interior of the central shaft. A bristle assembly is fixedly connected to the circumferential surface of the brush sleeve. A threaded rod is fixedly connected to the bottom of the inner wall of the water flow chamber. The upper end of the threaded rod is rotatably connected to the top of the inner wall of the control board. An inner threaded limiting sleeve is threaded onto the circumferential surface of the threaded rod. The inner threaded limiting sleeve is slidably connected to the water flow chamber along the inner wall. The design of the brushing and dust removal devices mainly aims to allow the cleaning liquid flowing from the guide tubes to adhere to the rotating bristle assembly, thereby better cleaning the heat dissipation vents and removing dust generated on sunny days.

[0012] According to the above technical solution, the heat dissipation groove is located at the rotation radius of the bristle assembly, and one end of the guide pipe is connected to the water flow chamber, while the other end is connected to the outside of the brush cleaning sleeve. A stable flow channel provides a stable delivery of the cleaning fluid.

[0013] According to the above technical solution, the size of the inner screw limiting sleeve matches the diameter of the water flow chamber and is located below the guide pipe. The top of the three-proof box is provided with a water inlet that extends into the interior of the water flow chamber.

[0014] This invention provides a cable branch box with three-proof functions. It has the following beneficial effects: (1) The present invention uses the setting of the rain and sunshine heat dissipation adjustment device to make the four connecting plates horizontally displace and drive the four protective boxes to horizontally displace. The horizontal displacement of the four protective boxes drives the four power heat dissipation devices to horizontally displace. The maximum value is set when the four power heat dissipation devices are moved to the surface of the heat dissipation port. After the four power heat dissipation devices are started, they continuously fit the heat dissipation port and continuously provide rain and sunshine heat dissipation support for the electronic components inside the cable box body through the heat dissipation groove.

[0015] (2) By setting up a rain and sunshine heat dissipation adjustment device, the present invention makes one end of the four force blocks subject to extrusion pressure. Part of the kinetic energy is converted into horizontal energy under the restriction of the control plate sliding along the inner side of the three-proof box. The kinetic energy drives the four convex hollow blocks to make horizontal displacement. The horizontal displacement of the four convex hollow blocks drives the two control plates to move in opposite directions. The two control plates move in opposite directions to the heat dissipation port and stick to it, controlling the entry and exit of rainwater and blocking the inflow of rainwater, thereby realizing the function of rain protection in rainy weather.

[0016] (3) By setting up electrical protection equipment, the present invention enables four power heat dissipation devices to stably deliver air volume through the corresponding ventilation openings in rainy weather. During the reset rotation of the four contact shafts, the four lifting rods are driven to reset and rotate. The reset rotation of the four lifting rods causes the four dustproof plates to lose their support force. Under the restriction of the four sliding plates, the four dustproof plates move vertically downward, thereby closing the ventilation openings, providing dust protection for the power heat dissipation devices, and extending their service life.

[0017] (4) The present invention, through the setting of the brush cleaning dust removal equipment, enables the two brush sleeves to rotate linearly and drive the two central shafts to rotate. The rotation of the two central shafts drives the two threaded rods to rotate. The rotation of the two threaded rods drives the inner threaded limiting sleeve to move vertically upward under the limiting effect of the water flow chamber. The inner threaded limiting sleeve moves vertically upward inside the water flow chamber and pushes out the cleaning liquid stored inside the water flow chamber to the guide pipe. The liquid flows out through the guide pipe and adheres to the rotating brush bristles, so as to better clean the heat dissipation port and clean the dust generated on sunny days. Attached Figure Description

[0018] Figure 1 This is a three-dimensional appearance diagram of the entire invention; Figure 2 This is a three-dimensional enlarged schematic diagram of the back of the cable box body of the present invention; Figure 3 This is a three-dimensional cross-sectional view of the overall cable box body of the present invention; Figure 4 This is a three-dimensional enlarged schematic diagram of the overall three-proof box of the present invention; Figure 5 This is a three-dimensional enlarged schematic diagram of the overall convex hollow block of the present invention; Figure 6 This is a three-dimensional enlarged schematic diagram of the overall protective box of the present invention; Figure 7 This is a three-dimensional magnified schematic diagram of the interior of the overall protective box of the present invention; Figure 8 This is a three-dimensional enlarged schematic diagram of the overall brushing and dust removal equipment of the present invention; Figure 9 This is a three-dimensional cross-sectional side view of the central axis of the entire invention; Figure 10 This is a three-dimensional cross-sectional side view of the overall limiting rod of the present invention.

[0019] In the diagram: 1. Cable box body; 2. Cabinet door; 3. Three-proof box; 4. Weather-resistant heat dissipation and regulation equipment; 41. Heat dissipation vent; 42. Motor; 43. Bidirectional threaded rod; 44. Internal threaded sleeve; 45. Adjusting rod; 46. Control panel; 47. Convex hollow block; 48. Contact shaft; 49. Force-bearing block; 410. Sensing rod; 411. Protective box; 412. Notch; 413. Power heat dissipation equipment; 414. Piezoelectric relay; 415. 416. Return spring; 417. Fixed shaft; 418. Return torsion spring; 419. Connecting plate; 5. Electrical protection equipment; 51. Slide plate; 52. Dustproof plate; 53. Ventilation opening; 54. Lifting rod; 6. Brush dust removal equipment; 61. Central shaft; 62. Brush sleeve; 63. Guide pipe; 64. Water flow chamber; 65. Brush bristle assembly; 66. Threaded rod; 67. Internal thread limiting sleeve; 68. Water inlet; 69. Limiting rod; 7. Heat dissipation groove. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0021] Please see Figure 1-9One embodiment of the present invention is as follows: a cable branch box with three-proof function, including a cable box body 1, two cabinet doors 2 mirror-imagely arranged on both sides of the front end of the cable box body 1 for controlling the opening and closing of the cable box body 1, two sets of heat dissipation slots 7 on both sides of the rear end of the cable box body 1, a three-proof box 3 fixedly installed at the rear end of the cable box body 1, and a weather-cooling and heat-regulating device 4 installed inside the three-proof box 3; the weather-cooling and heat-regulating device 4 includes two sets of heat dissipation vents 41 mirror-imagely opened on both sides of the cable box body 1 for dissipating heat inside the cable box body 1 in sunny weather, a motor 42 fixedly installed on the top of the inner wall of the three-proof box 3, a bidirectional threaded rod 43 fixedly connected to the end of the output shaft of the motor 42, two internal threaded sleeves 44 symmetrically threaded on the circumference of the bidirectional threaded rod 43, both internal threaded sleeves 44 slidingly connected along the inner side of the three-proof box 3 to limit the displacement of the displacement internal threaded sleeves 44, and an adjustment device symmetrically fixedly connected to each side of the two internal threaded sleeves 44. The cable box body 1 has two control panels 46 slidably connected to the inner side of the section rod 45. Four convex hollow blocks 47 are fixedly connected to the opposite surfaces of the two control panels 46. One end of each of the four convex hollow blocks 47 is rotatably connected to a contact shaft 48. A force-bearing block 49 and a sensing rod 410 are fixedly installed on the circumference of each of the four contact shafts 48. A connecting plate 418 is fixedly connected to the inner side of each of the four convex hollow blocks 47. A protective box 411 is fixedly installed at the lower end of each of the four connecting plates 418. A notch 412 is opened on the side of each of the four protective boxes 411 near the sensing rod 410. A set of power cooling devices 413 is provided on the inner side of each of the four protective boxes 411 for cooling the inside of the cable box body 1 during rain. A piezoelectric relay 414 is provided at the end of each of the four sets of power cooling devices 413 near the notch 412. The four piezoelectric relays 414 are connected to the four power cooling devices 413 in communication. A reset spring 415 is fixedly installed at both the upper and lower ends of the back surface of the two sets of control panels 46. The four reset springs 415 are in pairs. One end of each set of reset springs 415 is fixedly connected to the upper and lower ends of the inner side of the three-proof box 3. One end of each of the four abutment shafts 48 is fixedly installed with a fixed shaft 416. The ends of the circumferential surfaces of the four fixed shafts 416 penetrate the sides of the four convex hollow blocks 47. A reset torsion spring 417 is fixedly sleeved on the circumferential surface of the four fixed shafts 416. One end of each of the four reset torsion springs 417 is fixedly connected to an abutment shaft 48. In sunny conditions, the four force blocks 49 lose their compressive force and, under the elastic action of the return spring 415, drive the two control boards 46 to reset and slide open the two sets of heat dissipation vents 41. Under the torque of the four return torsion springs 417, the four abutment shafts 48 are forced to reset and rotate. The reset and rotation of the four abutment shafts 48 drives the four sensing rods 410 to reset and rotate. The pressure sensing ends of the four piezoelectric relays 414 are no longer under pressure, thus shutting down the power cooling equipment 413 and restoring the sunny cooling state.Four force-bearing blocks 49 are arranged symmetrically in pairs on the displacement trajectory of the adjusting rod 45. The pressure sensing ends of four piezoelectric relays 414 are located on the rotation radii of the four sensing rods 410. This design ensures that the force-bearing blocks 49 are stably compressed during the rotation of the adjusting rod 45; and that the pressure sensing ends of the piezoelectric relays 414 are stably compressed during the rotation of the sensing rods 410, activating the power cooling device 413. Each of the four protective boxes 411 contains a set of electrical protection devices 5. Each electrical protection device 5 includes a sliding plate 51, the rear end of which is welded to the front side of the protective box 411. A dustproof plate 52 is slidably connected to the front groove of the sliding plate 51 via a slider. Two ventilation openings 53 are located at the lower center of the front end of the sliding plate 51. A lifting rod 54 is fixedly connected to the front end of the circumference of the contact shaft 48. The electrical protection devices 5 are designed to provide dust protection for the power cooling device 413 in sunny conditions, preventing dust from entering the power cooling device 413 through the ventilation openings 41 and extending its service life. The two vents 53 are initially covered by dustproof plates 52, and the front corner of the sliding plate 51 is located on the displacement trajectory of the lifting rod 54. This design provides stable dust protection in sunny conditions.

[0022] During use, the cable box body 1 needs to be protected against moisture, dust, and heat during long-term use. In sunny weather, the stable heat dissipation channel formed by the heat dissipation groove 7 and heat dissipation vent 41 inside the cable box body 1 can ensure the heat dissipation function of the cable box body 1 under sunny conditions, avoiding tripping accidents of electronic components due to high temperature. In rainy weather, the heat dissipation vent 41 is connected to the outdoors. In order to prevent rainwater from flowing into the cable box body 1 from the heat dissipation vent 41 and flowing through the heat dissipation groove 7, causing internal short circuits of electronic components, the motor 42 can be started to drive the bidirectional threaded rod 43 to rotate. The rotation of the bidirectional threaded rod 43 drives the two internal threaded sleeves 44 to restrain the three-proof box 3. The two internal threaded sleeves 44 move horizontally towards each other, which in turn drives the two adjusting rods 45 to move horizontally towards each other. The four adjusting rods 45 move horizontally towards each other, which press one end of the four force blocks 49 respectively. The one end of the four force blocks 49 is subjected to the compressive force. Part of the kinetic energy is converted into horizontal energy under the limiting effect of the control plate 46 sliding along the inner side of the three-proof box 3. The kinetic energy drives the four convex hollow blocks 47 to move horizontally. The horizontal displacement of the four convex hollow blocks 47 drives the two control plates 46 to move in opposite directions. The two control plates 46 move in opposite directions to the heat dissipation port 41 and stick to it, controlling the entry and exit of rainwater and blocking the inflow of rainwater, thereby realizing the function of rain protection in rainy weather. Simultaneously, one end of each of the four force-bearing blocks 49 is subjected to compressive force, while the remaining kinetic energy is converted into rotational kinetic energy under the constraint of the contact shaft 48, which passes through and is rotatably connected to the convex hollow block 47. This rotation drives the four force-bearing blocks 49 to rotate, which in turn drives the four contact shafts 48. The rotation of the four contact shafts 48 drives the four sensing rods 410 to rotate, which in turn compresses the pressure sensing ends of the four piezoelectric relays 414, thereby triggering the sensing program of the four piezoelectric relays 414 and activating the power cooling device 413. Meanwhile, a portion of the kinetic energy is limited by the control plate 46 sliding along the inner side of the three-proof box 3. When the energy generated by the process is converted into horizontal kinetic energy, it drives the four convex hollow blocks 47 to move horizontally. The horizontal displacement of the four convex hollow blocks 47 drives the four connecting plates 418 to move horizontally. The horizontal displacement of the four connecting plates 418 drives the four protective boxes 411 to move horizontally. The horizontal displacement of the four protective boxes 411 drives the four power heat dissipation devices 413 to move horizontally. The displacement of the four power heat dissipation devices 413 to the surface of the heat dissipation port 41 is set to the maximum value, so that after the four power heat dissipation devices 413 are started, they continuously fit against the heat dissipation port 41 and continuously provide heat dissipation support for the electronic components inside the cable box body 1 through the heat dissipation groove 7.

[0023] When the weather clears up, the motor 42 is restarted to activate the bidirectional threaded rod 43 for reset rotation, which in turn drives the two internal threaded sleeves 44 to reset horizontal displacement. The reset horizontal displacement of the two internal threaded sleeves 44 drives the four adjusting rods 45 to reset horizontal displacement. The reset horizontal displacement of the four adjusting rods 45 causes the four force blocks 49 to lose their compressive force. Under the elastic action of the reset spring 415, the four force blocks 49 drive the two control boards 46 to reset and slide open the two sets of heat dissipation vents 41. The reset sliding of the two control boards 46 drives the four convex hollow blocks 47 to reset and slide. The reset sliding of the four convex hollow blocks 47 opens the heat dissipation vents 41. At this time, under the torque of the four reset torsion springs 417, the four abutment shafts 48 are forced to reset and rotate. The reset rotation of the four abutment shafts 48 drives the four sensing rods 410 to reset and rotate. The four piezoelectric relays When the pressure sensing end of device 414 is no longer under pressure, the power cooling device 413 is shut down, restoring the cooling state in sunny weather. During the rotation of the four contact shafts 48, the four lifting rods 54 are driven to rotate. The rotation of the four lifting rods 54 causes the four dustproof plates 52 to move vertically upward under the restriction of the four sliding plates 51, thereby opening the vents 53. This allows the four power cooling devices 413 to stably deliver airflow through the corresponding vents 53 in rainy weather. During the reset rotation of the four contact shafts 48, the four lifting rods 54 are driven to reset rotation. The reset rotation of the four lifting rods 54 causes the four dustproof plates 52 to lose their support. The four dustproof plates 52 move vertically downward under the restriction of the four sliding plates 51, thereby closing the vents 53, providing dust protection for the power cooling devices 413, and extending their service life.

[0024] Please see Figure 1-10 Based on the above embodiments, in another embodiment of the present invention, a set of brushing and dust removal devices 6 are respectively provided inside the two sets of control plates 46. The brushing and dust removal device 6 includes a central shaft 61, the two ends of the central shaft 61 are rotatably connected to the top of the inner wall of the control plate 46, the circumferential surface of the central shaft 61 is fixedly fitted with a brush sleeve 62, the upper end of the circumferential surface of the brush sleeve 62 is arrayed with a guide tube 63, the upper end of the interior of the central shaft 61 is provided with a water flow chamber 64, the circumferential surface of the brush sleeve 62 is fixedly connected with a bristle group 65, the bottom of the inner wall of the water flow chamber 64 is fixedly connected with a threaded rod 66, the upper end of the threaded rod 66 is rotatably connected to the top of the inner wall of the control plate 46, the circumferential surface of the threaded rod 66 is threadedly fitted with an inner threaded limiting sleeve 67, the inner threaded limiting sleeve 67 is slidably connected to the water flow chamber 64 along the inner wall, the top of the inner threaded limiting sleeve 67 is penetrated by a limiting rod 69, one end of the limiting rod 69 is fixedly connected to the top of the inner wall of the control plate 46. The design of the brushing and dust removal device 6 mainly involves the cleaning fluid flowing from the guide pipe 63 adhering to the rotating bristle assembly 65, thus better cleaning the heat dissipation vent 41 and removing dust generated on sunny days. The heat dissipation groove 7 is located at the rotation radius of the bristle assembly 65. One end of the guide pipe 63 connects to the water flow chamber 64, and the other end connects to the outside of the brushing sleeve 62. The stable flow channel provides a stable transmission of the cleaning fluid. The size of the inner thread limiting sleeve 67 matches the diameter of the water flow chamber 64 and is located below the guide pipe 63. The top of the three-proof box 3 has a water inlet 68 that extends into the interior of the water flow chamber 64.

[0025] In use, when the two control boards 46 move horizontally in opposite directions, they drive the two brush sleeves 62 to move horizontally in opposite directions. When the two brush sleeves 62 move horizontally in opposite directions, the brush bristle group 65 arrayed on the circumferential surface of the two brush sleeves 62 is subjected to the friction force of the rear side of the cable box body 1, which converts the horizontal displacement of the two brush sleeves 62 into a linear rotational displacement. The linear rotational displacement of the two brush sleeves 62 drives the two central shafts 61 to rotate. The rotation of the two central shafts 61 drives the two threaded rods 66 to rotate. The rotation of the two threaded rods 66 drives the inner threaded limiting sleeve 67 to move vertically upward under the limiting action of sliding with the limiting rod 68. The inner threaded limiting sleeve 67 moves vertically upward inside the water flow chamber 64, pushing out the cleaning liquid stored inside the water flow chamber 64 to the guide pipe 63, and then flows out through the guide pipe 63 to adhere to the rotating brush bristle group 65, so as to better brush the heat dissipation port 41 and clean the dust generated on sunny days.

[0026] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A cable branch box with three-proof functions, comprising a cable box body (1), characterized in that: Two cabinet doors (2) are mirrored on both sides of the front end of the cable box body (1) for controlling the opening and closing of the cable box body (1). Two sets of heat dissipation slots (7) are opened on both sides of the rear end of the cable box body (1). A three-proof box (3) is fixedly installed at the rear end of the cable box body (1). A rain and shine heat dissipation adjustment device (4) is installed inside the three-proof box (3). The heat dissipation and regulation device (4) includes two sets of heat dissipation vents (41) mirrored on both sides of the cable box body (1) for heat dissipation inside the cable box body (1) during sunny weather. A motor (42) is fixedly installed on the top of the inner wall of the three-proof box (3). A bidirectional threaded rod (43) is fixedly connected to the end of the output shaft of the motor (42). Two internal threaded sleeves (44) are symmetrically threaded on the circumference of the bidirectional threaded rod (43). The two internal threaded sleeves (44) are slidably connected along the inner side of the three-proof box (3) to limit the displacement of the internal threaded sleeves (44). An adjusting rod (45) is symmetrically fixedly connected to each side of the two internal threaded sleeves (44). Two sets of control plates (46) are slidably connected to the inner side of the cable box body (1). Four convex hollow blocks (47) are fixedly connected to the opposite surfaces of the two sets of control plates (46). 7) One end of each of the four contact shafts (48) is connected to a contact shaft (48) through and rotated. A force block (49) and a sensing rod (410) are fixedly installed on the circumferential surface of each of the four contact shafts (48). A connecting plate (418) is fixedly connected to the inner side of each of the four convex hollow blocks (47). A protective box (411) is fixedly installed at the lower end of each of the four connecting plates (418). A notch (412) is opened on the side of each of the four protective boxes (411) near the sensing rod (410). A set of power heat dissipation equipment (413) is provided on the inner side of each of the four protective boxes (411) for dissipating heat inside the cable box body (1) during rain. A piezoelectric relay (414) is provided at the end of each of the four sets of power heat dissipation equipment (413) near the notch (412). The four piezoelectric relays (414) are connected to the four power heat dissipation equipment (413) in communication.

2. A cable branch box with three-proof function according to claim 1, characterized in that: A reset spring (415) is fixedly installed at both the upper and lower ends of the back surface of the two sets of control panels (46). The four reset springs (415) are in pairs. One end of each set of reset springs (415) is fixedly connected to the upper and lower ends of the inner side of the three-proof box (3). One end of each of the four abutment shafts (48) is fixedly installed with a fixed shaft (416). The ends of the circumferential surfaces of the four fixed shafts (416) penetrate the sides of the four convex hollow blocks (47). A reset torsion spring (417) is fixedly sleeved on the circumferential surface of the four fixed shafts (416). One end of each of the four reset torsion springs (417) is fixedly connected to an abutment shaft (48).

3. A cable branch box with three-proof function according to claim 2, characterized in that: The four force-bearing blocks (49) are arranged in pairs and symmetrically on the displacement trajectory of the adjusting rod (45). The pressure sensing ends of the four piezoelectric relays (414) are located on the rotation radius of the four sensing rods (410).

4. A cable branch box with three-proof function according to claim 3, characterized in that: Each of the four protective boxes (411) is equipped with a set of electrical protection devices (5). The electrical protection devices (5) include a slide plate (51). The rear end of the slide plate (51) is welded to the front side of the protective box (411). A dustproof plate (52) is slidably connected to the front slide of the slide plate (51) by a slider. Two ventilation holes (53) are opened at the lower part of the front center area of ​​the slide plate (51). A lifting rod (54) is fixedly connected to the front end of the circumference of the contact shaft (48).

5. A cable branch box with three-proof function according to claim 4, characterized in that: The two ventilation openings (53) are initially covered by dustproof plates (52), and the front corner of the slide plate (51) is located on the displacement trajectory of the lifting rod (54).

6. A cable branch box with three-proof function according to claim 5, characterized in that: Each of the two sets of control panels (46) is equipped with a set of brushing and dust removal devices (6). Each brushing and dust removal device (6) includes a central shaft (61). The two ends of the central shaft (61) are rotatably connected to the top of the inner wall of the control panel (46) and the top of the inner wall, respectively. A brushing sleeve (62) is fixedly fitted on the circumferential surface of the central shaft (61). A guide tube (63) is arrayed through the upper end of the circumferential surface of the brushing sleeve (62). A water flow chamber (64) is opened at the upper end of the interior of the central shaft (61). The circumferential surface of the brushing sleeve (62) is... A brush bristle assembly (65) is fixedly connected to the surface. A threaded rod (66) is fixedly connected to the bottom of the inner wall of the water flow chamber (64). The upper end of the threaded rod (66) is rotatably connected to the top of the inner wall of the control plate (46). An inner threaded limiting sleeve (67) is threaded on the circumferential surface of the threaded rod (66). The inner threaded limiting sleeve (67) is slidably connected to the water flow chamber (64) along the inner wall. A limiting rod (69) passes through the top of the inner threaded limiting sleeve (67). One end of the limiting rod (69) is fixedly connected to the top of the inner wall of the control plate (46).

7. A cable branch box with three-proof function according to claim 6, characterized in that: The heat dissipation groove (7) is located on the rotation radius of the bristle group (65), and one end of the guide pipe (63) is connected to the water flow chamber (64), and the other end is connected to the outside of the brush washing sleeve (62).

8. A cable branch box with three-proof function according to claim 7, characterized in that: The size of the inner screw limiting sleeve (67) matches the diameter of the water flow chamber (64) and is located below the guide pipe (63). The top of the three-proof box (3) is provided with a water inlet (68) that extends into the interior of the water flow chamber (64).

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