Buried cable branch box based on smart grid

By introducing a sliding door and rotating rod structure driven by a linear stepper motor into the smart grid cable branch box, combined with a floating plate and waterproof components, the problem of heat dissipation and dehumidification in underground cable branch boxes is solved. This enables ventilation and heat dissipation in sunny weather and waterproofing and cooling in rainy weather, ensuring the normal operation and waterproofing effect of the equipment.

CN122436892APending Publication Date: 2026-07-21JIANGSU SUAN SECURITY TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGSU SUAN SECURITY TECH CO LTD
Filing Date
2026-05-11
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing buried cable distribution boxes based on smart grids cannot effectively perform heat dissipation and dehumidification functions when used underground, resulting in inconvenience.

Method used

A branch box driven by a linear motor was designed. It achieves ventilation, heat dissipation and dehumidification in sunny weather through a sliding door and rotating rod structure, and is tightly sealed and waterproof in rainy weather. A floating plate and waterproof components are set to prevent water ingress in rainy weather and cool down through the heat dissipation box. A roller and protrusion structure cleans the ventilation net to prevent blockage.

Benefits of technology

It achieves effective heat dissipation and dehumidification in sunny weather, prevents water ingress in rainy weather, and ensures the equipment's waterproof and ventilation efficiency through an automatic adjustment structure, preventing the ventilation network from becoming clogged, thus improving the equipment's reliability and efficiency.

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Abstract

The application discloses a buried cable branch box based on a smart power grid and belongs to the technical field of power systems and engineering, which comprises a shell, a cavity one and a cavity two are formed in the shell, a straight step motor is arranged on the inner side of the shell and in the cavity one, and a branch box is arranged on the outer side of the straight step motor. The straight step motor drives the branch box to move upwards in sunny weather, the branch box can move the sliding block upwards by extruding the sliding block, the two groups of rotating rods on the outer side of the fixed rod one respectively drive the two groups of fixed rods two to gradually separate by moving the sliding block upwards, the two groups of sliding doors one are separated by the gradual separation of the two groups of fixed rods two, the ventilation net can ventilate, the effect of heat dissipation and dehumidification of the branch box is achieved, when it is rainy, the straight step motor drives the branch box to move downwards, and the two groups of sliding doors one are tightly attached, so that the waterproof purpose is achieved.
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Description

Technical Field

[0001] This application relates to the field of power systems and engineering technology, and more specifically, to a buried cable branch box based on a smart grid. Background Technology

[0002] Currently, my country is vigorously promoting the application of buried cable distribution boxes based on smart grids. The technological background of buried cable distribution boxes based on smart grids is an inevitable product of the transformation of traditional power grids towards intelligence, reliability, and efficiency. Its development has evolved from meeting basic physical connections to integrating advanced sensing and control functions, aiming to address challenges such as limited urban space, increased power supply reliability requirements, and refined operation and maintenance.

[0003] Because the buried cable distribution boxes based on smart grids currently on the market need to be buried underground for a long time, their heat dissipation and dehumidification functions cannot be effectively utilized underground, making them very inconvenient to use. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a buried cable branch box based on a smart grid, which solves the problems mentioned in the background section.

[0005] To achieve the above objectives, this application provides a buried cable branch box based on a smart grid, including a housing, with a cavity one and a cavity two inside the housing, a linear stepper motor installed inside the housing and inside the cavity one, a branch box installed outside the linear stepper motor, and a sliding door installed on the top of the branch box. Four sets of fixing devices are mounted on the top of the housing. A ventilation net is installed between the four sets of fixing devices. The lower ends of the ventilation net are fixedly connected to the outer shell. A sliding door is slidably connected to the inner side of each of the two sets of outer shells. A linkage block is fixedly connected to the lower side of the sliding door. A baffle is fixedly connected to the inner side of the housing and between the two sets of linkage blocks. A spring is fixedly connected to both sides of the baffle. The two sets of springs are respectively fixedly connected to the inner side of the two sets of linkage blocks. A slider is slidably connected to the inner side of the housing and below the baffle. A fixing rod is fixedly connected to the inner side of the slider. Two sets of rotating rods are rotatably connected to the outer side of the fixing rod. A second fixing rod is fixedly connected to the outer side of each of the two sets of linkage blocks. The two sets of rotating rods are respectively rotatably connected to the outer side of the two sets of fixing rods.

[0006] Preferably, the corresponding surfaces of the two sets of sliding doors are respectively provided with waterproof structures, and the corresponding surface of the left sliding door is set as a convex structure, and the corresponding surface of the right sliding door is set as a concave structure, and the convex structure and the concave structure can fit tightly together.

[0007] Preferably, each of the corresponding surfaces of the two sets of linkage blocks has an opening, and the two sets of springs are respectively fixedly connected to the inner side of the two sets of openings, and the length and height of the baffle are the same as the openings of the linkage blocks.

[0008] Preferably, the height of the slider is greater than the diameter of the rotating rod, and both the outer side of the housing and the branch box are provided with openings II for the cable to enter, and multiple sets of openings II are on a straight line.

[0009] Preferably, a water inlet is provided on the outer side of the housing and above the second cavity; a sliding door is slidably connected to the inner side of the housing and below the water inlet; two sets of rectangular blocks are fixedly connected above the second sliding door; a baffle is fixedly connected to the inner side of the housing and outside the second sliding door; a pressing block is fixedly connected to the lower side of the second sliding door and inside the second baffle; a sliding rod is slidably connected to the inner side of the pressing block; the sliding rod is fixedly connected to the inner side of the housing; a spring is fixedly connected between the pressing block and the housing and outside the sliding rod; a support plate is fixedly connected to the inner side of the housing and inside the second cavity; and the baffle... A compression rod is slidably connected to the outer side of cavity 2 and the side near the support plate. A limit plate is fixedly connected to the outer side of the compression rod and above the support plate. A float plate is slidably connected to the inner side of the housing and below the compression rod. A rectangular opening is provided between cavity 1 and cavity 2 and on the inner side of the housing. A waterproof component is installed on the inner side of the housing and outside the rectangular opening. A heat dissipation box is installed below the branch box. A water outlet pipe is installed on the inner side of the heat dissipation box. A water pump is installed on the inner side of the housing and outside the water outlet pipe. A water outlet is provided above the water outlet pipe on the outer side of the housing. The water outlet pipe is connected to the water outlet.

[0010] Preferably, the waterproof component includes two sets of waterproof grooves, two sets of waterproof inserts, and a rectangular interface. The two sets of waterproof grooves are fixedly connected to the inner side of the housing and inside the cavity. A valve is slidably connected between the two sets of waterproof grooves and outside the rectangular opening. An extension plate is fixedly connected to the outer side of the valve. Two sets of springs are fixedly connected between the lower part of the extension plate and the housing. The two sets of waterproof inserts are assembled on the outer side of the heat sink and on the side near the valve. The rectangular interface is assembled on the outer side of the heat sink and between the two sets of waterproof inserts.

[0011] Preferably, two sets of grooves are provided on the inner side of the shell and above the second cavity, and the two sets of grooves are respectively provided above the two sets of rectangular blocks, and the specifications of the two sets of grooves are the same as the specifications of the rectangular blocks.

[0012] Preferably, a fixing block is fixedly connected above each of the two sets of sliding doors. A circular slide plate is slidably connected to the inner side of the fixing block. A roller is rotatably connected to the lower side of the circular slide plate. A connecting plate is fixedly connected to the outer side of the circular slide plate. A sliding plate is fixedly connected to the outer side of the connecting plate. Two sets of guide rods are fixedly connected to the inner side of the sliding plate. Both sets of guide rods are fixedly connected to the outer side of the fixing block. A spring is fixedly connected between the sliding plate and the fixing block and to the outer side of the two sets of guide rods. Multiple sets of protrusions are fixedly connected to the inner side of the housing and between the two sets of fixing blocks.

[0013] Preferably, the upper part of both sets of sliding plates and the contact area with the ventilation mesh are both provided with brushes, and multiple sets of protrusions are evenly distributed on the inner side of the shell, and the multiple sets of protrusions are all set with a flat round structure.

[0014] The advantages of this application are: (1) This application sets up a sliding door and a rotating rod so that in sunny weather, the linear motor drives the branch box to move upward, so that the branch box can move the slider upward by squeezing the slider. As the slider moves upward, the two sets of rotating rods on the outside of the fixed rod 1 drive the two sets of fixed rods 2 to gradually separate. As the two sets of fixed rods 2 gradually separate, the two sets of sliding doors 1 separate, so that the ventilation net can be ventilated, thereby achieving the effect of heat dissipation and dehumidification of the branch box. When it rains, the linear motor drives the branch box to move downward, so that the two sets of sliding doors 1 fit tightly together, thereby achieving the purpose of waterproofing.

[0015] (2) By setting up a float and waterproof components, rainwater enters the cavity two through the inlet when it rains. As the water level below the cavity two gradually rises, the float moves upward. The upward movement of the float causes the squeezing rod to move upward, thereby squeezing the squeezing block and causing the sliding door two to block the inlet, thus stopping the water from entering. Through the waterproof components, when the heat dissipation box below the branch box moves downward to the rectangular opening, the water in the cavity two can enter the heat dissipation box to achieve the effect of cooling the branch box. Through the water outlet pipe, the water in the heat dissipation box can be discharged.

[0016] (3) By setting rollers and protrusions, the sliding door moves and drives the circular slide plate to move. The rollers under the circular slide plate can press against multiple sets of protrusions. When the rollers pass through a set of protrusions, they move towards the sliding plate. The circular slide plate drives the connecting plate and the sliding plate to move. When the rollers pass through a set of protrusions, the sliding plate returns to its original position through two sets of springs. The reciprocating movement of the sliding plate achieves the purpose of cleaning the ventilation net to prevent the ventilation net from being blocked and reducing the ventilation efficiency. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application. In the drawings: Figure 1 This is an overall appearance and structural diagram of the present invention; Figure 2 This is an overall external and internal structural diagram of the present invention; Figure 3 This is a structural diagram of the internal part of the cavity of the present invention; Figure 4 This is a diagram of the internal structure of the cavity 2 of the present invention; Figure 5 This is a structural diagram of the upper part of the sliding door of the present invention; Figure 6 This is a partial structural diagram of the waterproof component of the present invention; Figure 7 This is a partial structural diagram of the waterproof component of the present invention; Figure 8 This is a top view of the overall appearance and internal structure of the present invention; Figure 9 This is a structural diagram of the upper part of the sliding door of the present invention.

[0018] In the above image, 100. Shell; 200. Cavity 1; 300. Cavity 2; 400. Stepper motor; 500. Branch box; 600. Sliding door; 101. Fixing device; 102. Ventilation net; 103. Outer shell; 104. Sliding door 1; 105. Linkage block; 106. Baffle 1; 107. Spring 1; 108. Slider; 109. Fixed rod 1; 110. Rotating rod; 111. Fixed rod 2; 201. Inlet; 202. Sliding door 2; 203. Rectangular block; 204. Baffle 2; 205. Extrusion block; 206. Sliding rod; 207. Spring 2; 2 08. Support plate; 209. Extrusion rod; 210. Limiting plate; 211. Float plate; 212. Rectangular opening; 213. Heat sink; 214. Waterproof component; 215. Water outlet pipe; 216. Water pump; 217. Water outlet; 301. Valve; 302. Waterproof groove; 303. Extension plate; 304. Spring three; 305. Rectangular interface; 306. Waterproof insert plate; 401. Fixing block; 402. Circular sliding plate; 403. Roller; 404. Connecting plate; 405. Sliding plate; 406. Guide rod; 407. Spring four; 408. Protrusion. Detailed Implementation

[0019] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of the present application. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative effort should fall within the scope of protection of the present application.

[0020] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be used interchangeably where appropriate for the purposes of describing embodiments of this application herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0021] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0022] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0023] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0024] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0025] Example 1, see Figures 1-3 This embodiment provides a buried cable branch box based on a smart grid, including a housing 100. The housing 100 has a cavity 200 and a cavity 300 inside. A linear stepper motor 400 is installed inside the housing 100 and inside the cavity 200. A branch box 500 is installed outside the linear stepper motor 400. A sliding door 600 is installed on the top of the branch box 500. Four sets of fixing devices 101 are mounted on the top of the housing 100. A ventilation net 102 is installed between the four sets of fixing devices 101. Both ends of the ventilation net 102 are fixedly connected to a housing 103. Sliding doors 104 are slidably connected to the inner sides of both sets of housings 103. Waterproof structures are provided on the corresponding surfaces of the two sets of sliding doors 104. The corresponding surface of the left sliding door 104 is convex, and the corresponding surface of the right sliding door 104 is concave, allowing the convex and concave structures to fit tightly together. A linkage block 105 is fixedly connected below the sliding door 104. A baffle 106 is fixedly connected to the inner side of the housing 100 between the two sets of linkage blocks 105. Springs 107 are fixedly connected to both sides of the baffle 106. Openings are provided on the corresponding surfaces of the two sets of linkage blocks 105. Two sets of springs 107 are fixedly connected to the inner sides of two sets of openings 1, and the length and height of the baffle 106 are the same as the openings 1 opened by the linkage block 105. Two sets of springs 107 are fixedly connected to the inner sides of two sets of linkage blocks 105. A slider 108 is slidably connected to the inner side of the housing 100 and below the baffle 106. A fixed rod 109 is fixedly connected to the inner side of the slider 108. Two sets of rotating rods 110 are rotatably connected to the outer side of the fixed rod 109. The height of the slider 108 is greater than the diameter of the rotating rod 110. Openings 2 for cable entry are opened on the outer sides of both the housing 100 and the branch box 500. Multiple sets of openings 2 are on a straight line. Fixed rods 211 are fixedly connected to the outer sides of both sets of linkage blocks 105. Two sets of rotating rods 110 are rotatably connected to the outer sides of the two sets of fixed rods 211. This application, by setting up sliding door 104 and rotating rod 110, allows the linear motor 400 to drive the branch box 500 upward in sunny weather. This allows the branch box 500 to move upward by pressing the slider 108. The upward movement of the slider 108 causes the two sets of rotating rods 110 on the outside of the fixed rod 109 to gradually separate the two sets of fixed rods 111. The gradual separation of the two sets of fixed rods 111 separates the two sets of sliding door 104, allowing the ventilation net 102 to ventilate, thus achieving the effect of heat dissipation and dehumidification of the branch box 500. In rainy weather, the linear motor 400 drives the branch box 500 downward, causing the two sets of sliding door 104 to fit tightly together, thus achieving waterproofing.

[0026] In practical use, the above-mentioned equipment is equipped with a linear stepper motor 400 inside the housing 100 and within the cavity 200, allowing the linear stepper motor 400 to move up and down inside the housing 100. A branch box 500 is installed outside the linear stepper motor 400, allowing the branch box 500 to move as the linear stepper motor 400 moves. A sliding door 600 is installed above the branch box 500, allowing ventilation while facilitating inspection of its interior by personnel. Four sets of fixing devices 101 are installed above the housing 100, and a ventilation net 102 is installed between the four sets of fixing devices 101, allowing ventilation inside the housing 100 while facilitating inspection by personnel. The ventilation mesh 102 is disassembled to facilitate internal inspection of the housing 100. Housings 103 are fixedly connected to both lower ends of the ventilation mesh 102, and sliding doors 104 are slidably connected to the inner sides of both sets of housings 103, allowing the two sets of sliding doors 104 to slide within their respective sets. A linkage block 105 is fixedly connected below the sliding door 104, causing it to move when the linkage block 105 moves. A slider 108 is slidably connected to the inner side of the housing 100 and below the baffle 106, and a fixing rod 109 is fixedly connected to the inner side of the slider 108, causing it to move when the slider 108 moves. A rotating connection is made to the outer side of the fixing rod 109. Two sets of rotating rods 110 are connected to two sets of fixed rods 111 on the outer sides of the two sets of linkage blocks 105, and the two sets of fixed rods 111 are rotatably connected to the inner sides of the two sets of rotating rods 110. In sunny weather, the linear motor 400 drives the branch box 500 to move upward, causing the branch box 500 to press the slider 108. The slider 108 then drives the fixed rod 109 to move upward. The upward movement of the fixed rod 109 causes the two sets of rotating rods 110 to gradually separate the two sets of linkage blocks 105, thus separating the two sets of sliding doors 104. This achieves the purpose of ventilation net 102 ventilating the interior of the housing 100. A baffle 106 is fixedly connected to the inner side of the housing 100 and between the two sets of linkage blocks 105. Springs 107 are fixedly connected to both sides of the baffle 106, and the two sets of springs 107 are respectively fixedly connected to the inner side of the two sets of linkage blocks 105. When it rains, the linear motor 400 drives the branch box 500 to move downward, so that the branch box 500 stops pressing the slider 108. The two sets of sliding doors 104 can be re-merged by the force of the springs 107 to achieve a waterproof effect. By setting waterproof structures on the corresponding surfaces of the two sets of sliding doors 104, and setting the corresponding surface of the left sliding door 104 as a convex structure and the corresponding surface of the right sliding door 104 as a concave structure, and the convex structure and the concave structure can fit tightly together, the waterproof effect of the two sets of sliding doors 104 when merged is better.

[0027] Example 2, see Figures 2-8In this embodiment, based on Embodiment 1, a water inlet 201 is provided on the outer side of the housing 100 and above the cavity 300. A sliding door 202 is slidably connected to the inner side of the housing 100 and below the water inlet 201. Two sets of rectangular blocks 203 are fixedly connected above the sliding door 202. Two sets of grooves are provided on the inner side of the housing 100 and above the cavity 300, with each set of grooves located above the two sets of rectangular blocks 203. The specifications of both sets of grooves are the same as those of the rectangular blocks 203. A baffle 204 is fixedly connected to the inner side of the housing 100 and outside the sliding door 202. A pressing block 205 is fixedly connected to the inner side of the baffle 204 below. A sliding rod 206 is slidably connected to the inner side of the pressing block 205. The sliding rod 206 is fixedly connected to the inner side of the housing 100. A spring 207 is fixedly connected between the pressing block 205 and the housing 100 and to the outer side of the sliding rod 206. A support plate 208 is fixedly connected to the inner side of the housing 100 and inside the cavity 300. A pressing rod 209 is slidably connected to the outer side of the baffle 204 and near the support plate 208. A limit plate 210 is fixedly connected to the outer side of the pressing rod 209 and above the support plate 208. A spring 207 is fixedly connected to the inner side of the housing 100 and inside the cavity 300. A float plate 211 is slidably connected below the rod 209. A rectangular opening 212 is provided between cavity one 200 and cavity two 300, and inside the housing 100. A waterproof component 214 is assembled inside the housing 100, outside the rectangular opening 212. The waterproof component 214 includes two sets of waterproof grooves 302, two sets of waterproof inserts 306, and a rectangular interface 305. The two sets of waterproof grooves 302 are fixedly connected inside the housing 100 and inside cavity one 200. A valve 301 is slidably connected between the two sets of waterproof grooves 302, outside the rectangular opening 212. An extension plate 303 is fixedly connected to the outside of the valve 301. Two sets of springs 304 are fixedly connected between the lower part of the extension plate 303 and the housing 100. Two sets of waterproof inserts 306 are mounted on the outside of the heat dissipation box 213 and on the side near the valve 301. A rectangular interface 305 is mounted on the outside of the heat dissipation box 213 and between the two sets of waterproof inserts 306. The heat dissipation box 213 is mounted below the branch box 500. A water outlet pipe 215 is mounted on the inside of the heat dissipation box 213. A water pump 216 is mounted on the inside of the housing 100 and outside the water outlet pipe 215. A water outlet 217 is opened above the water outlet pipe 215 on the outside of the housing 100. The water outlet pipe 215 is connected to the water outlet 217.This application, by setting up a float plate 211 and a waterproof component 214, allows rainwater to enter the cavity 300 through the inlet 201 during rainy weather. As the water level below the cavity 300 gradually rises, the float plate 211 moves upward. This upward movement of the float plate 211 causes the squeezing rod 209 to move upward, thereby squeezing the squeezing block 205 and causing the sliding door 202 to block the inlet 201, stopping the water from entering the inlet 201. Through the waterproof component 214, the heat dissipation box 213 below the branch box 500 moves downward to the rectangular opening 212, allowing water in the cavity 300 to enter the heat dissipation box 213, thus achieving a cooling effect on the branch box 500. The water in the heat dissipation box 213 can then be discharged through the outlet pipe 215.

[0028] In practical use, the above-mentioned equipment features an inlet 201 on the outside of the housing 100 and above the cavity 300, allowing rainwater to enter the cavity 300 during rainy weather. A sliding door 202 is slidably connected to the inside of the housing 100 and below the inlet 201. A baffle 204 is fixedly connected to the inside of the housing 100 and outside the sliding door 202. A pressing block 205 is fixedly connected below the sliding door 202 and inside the baffle 204, causing the sliding door 202 to move when the pressing block 205 moves. A support plate 208 is fixedly connected to the inside of the housing 100 and inside the cavity 300. A pressing rod is slidably connected to the outside of the baffle 204 and near the support plate 208. 209, and a limiting plate 210 is fixedly connected to the outside of the extrusion rod 209 and above the support plate 208. When the extrusion rod 209 moves upward, it extrudes the extrusion block 205, causing the extrusion block 205 to move towards the cavity 1 200, so that the sliding door 202 blocks the water inlet 201, stopping the water from entering the cavity 2 300. When the extrusion rod 209 moves downward, the limiting plate 210 can limit the downward movement distance of the extrusion rod 209. Two sets of rectangular blocks 203 are fixedly connected above the sliding door 202, and two sets of grooves are opened on the inner side of the housing 100 and above the cavity 2 300. The two sets of grooves are respectively opened above the two sets of rectangular blocks 203, and the specifications of the two sets of grooves are the same as the specifications of the rectangular blocks 203. Similarly, to improve the waterproofing effect of sliding door 202 when blocking water inlet 201, a sliding rod 206 is slidably connected to the inside of the squeezing block 205, and the sliding rod 206 is fixedly connected to the inside of the housing 100. A spring 207 is fixedly connected between the squeezing block 205 and the housing 100, and to the outside of the sliding rod 206. When the squeezing rod 209 moves downward, sliding door 202 can return to its original position via spring 207, reopening the water inlet 201 to allow water to enter. A float 211 is slidably connected to the inside of the housing 100, below the squeezing rod 209, causing the water level below cavity 300 to gradually rise, moving the float 211 upward and pushing the squeezing rod 209. A rectangular opening 212 is made between cavity one 200 and cavity two 300 and inside the housing 100. Two sets of waterproof grooves 302 are fixedly connected to the inside of the housing 100 and inside cavity one 200. A valve 301 is slidably connected between the two sets of waterproof grooves 302 and outside the rectangular opening 212. When the valve 301 moves downward to the corresponding position, water in cavity two 300 can flow out from the rectangular opening 212. An extension plate 303 is fixedly connected to the outside of the valve 301, so that the extension plate 303 moves when the valve 301 moves. A heat dissipation box 213 is installed below the branch box 500, and two sets of waterproof insert plates 306 are installed on the outside of the heat dissipation box 213 and on the side near the valve 301.The rectangular interface 305 is mounted on the outside of the heat sink 213 and between the two sets of waterproof inserts 306. When the branch box 500 moves downward, it moves the heat sink 213, the rectangular interface 305, and the waterproof inserts 306 together. When the heat sink 213 moves downward to the horizontal position of the rectangular opening 212, the two sets of waterproof inserts 306 insert into the two sets of waterproof grooves 302. At the same time, the rectangular interface 305 squeezes the valve 301 and moves downward until the rectangular interface 305 coincides with the rectangular opening 212, allowing water in the cavity 200 to enter the heat sink 213. This achieves the purpose of cooling the branch box 500 during rainy weather. Two sets of springs 304 are fixedly connected between the extension plate 303 and the housing 100. When the heat sink 213 moves upward, the valve 301 can return to its original position via the two sets of springs 304, thereby re-blocking the rectangular opening 212. A water outlet pipe 215 is installed inside the heat sink 213, and a water pump 216 is installed inside the housing 100 and outside the water outlet pipe 215. An outlet 217 is provided above the water outlet pipe 215 on the outside of the housing 100, and the water outlet pipe 215 is connected to the outlet 217, allowing water in the heat sink 213 to be discharged through the water outlet pipe 215.

[0029] Example 3, see Figures 8-9In this embodiment, based on Embodiment 1, a fixing block 401 is fixedly connected to the top of each of the two sets of sliding doors 104. A circular slide plate 402 is slidably connected to the inner side of the fixing block 401. A roller 403 is rotatably connected to the bottom of the circular slide plate 402. A connecting plate 404 is fixedly connected to the outer side of the circular slide plate 402. A sliding plate 405 is fixedly connected to the outer side of the connecting plate 404. Two sets of guide rods 406 are fixedly connected to the inner side of the sliding plate 405. Both sets of guide rods 406 are fixedly connected to the inner side of the sliding plate 405. A spring 407 is fixedly connected to the outside of the fixed block 401, between the sliding plate 405 and the fixed block 401 and on the outside of the two sets of guide rods 406. Multiple sets of protrusions 408 are fixedly connected to the inside of the housing 100 and between the two sets of fixed blocks 401. The upper part of the two sets of sliding plates 405 and the contact point with the ventilation net 102 are both set as brushes. The multiple sets of protrusions 408 are evenly distributed on the inside of the housing 100 and are all set as flat round structures. This application, by setting rollers 403 and protrusions 408, causes the circular slide plate 402 to move when the sliding door 104 moves. The rollers 403 under the circular slide plate 402 can press against multiple sets of protrusions 408. When the rollers 403 pass a set of protrusions 408, they move towards the sliding plate 405. The movement of the rollers 403 towards the sliding plate 405 causes the circular slide plate 402 to move the connecting plate 404 and the sliding plate 405 at the same time. When the rollers 403 pass a set of protrusions 408, the sliding plate 405 returns to its original position by two sets of springs 407. The reciprocating movement of the sliding plate 405 achieves the purpose of cleaning the ventilation net 102, thereby preventing the ventilation net 102 from becoming clogged and reducing ventilation efficiency.

[0030] In practical use, the above-mentioned equipment is constructed as follows: Fixed blocks 401 are fixedly connected above both sets of sliding doors 104, causing the fixed blocks 401 to move when the sliding doors 104 move. A circular sliding plate 402 is slidably connected to the inner side of the fixed blocks 401, and a roller 403 is rotatably connected below the circular sliding plate 402, causing the fixed blocks 401 to move together with the circular sliding plate 402 and the roller 403. A connecting plate 404 is fixedly connected to the outer side of the circular sliding plate 402, causing the connecting plate 402 to move when it moves. A sliding plate 405 is fixedly connected to the outer side of the connecting plate 404, causing the sliding plate 405 to move when the connecting plate 404 moves. Multiple sets of protrusions 408 are fixedly connected to the inner side of the housing 100 between the two sets of fixed blocks 401, allowing the rollers 401 to move. 3. During the process of passing through a set of protrusions 408, the roller 403 moves towards the sliding plate 405. Two sets of guide rods 406 are fixedly connected to the inner side of the sliding plate 405. The two sets of guide rods 406 are fixedly connected to the outer side of the fixing block 401. Springs 407 are fixedly connected between the sliding plate 405 and the fixing block 401 and to the outer side of the two sets of guide rods 406. When the roller 403 has completely passed through a set of protrusions 408, the sliding plate 405 can return to its original position through the two sets of springs 407, so as to achieve the purpose of the sliding plate 405 moving back and forth. By setting the upper part of the two sets of sliding plates 405 and the contact point with the ventilation net 102 as brushes, the sliding plate 405 cleans the ventilation net 102 when it moves, so as to prevent the ventilation net 102 from being blocked and thus reducing the ventilation efficiency.

[0031] 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 buried cable branch box based on a smart grid, comprising a housing, characterized in that, The housing has two cavities inside. A linear stepper motor is installed inside the housing and inside the first cavity. A branch box is installed outside the linear stepper motor. A sliding door is installed above the branch box. Four sets of fixing devices are mounted on the top of the housing. A ventilation net is installed between the four sets of fixing devices. The lower ends of the ventilation net are fixedly connected to the outer shell. A sliding door is slidably connected to the inner side of each of the two sets of outer shells. A linkage block is fixedly connected to the lower side of the sliding door. A baffle is fixedly connected to the inner side of the housing and between the two sets of linkage blocks. A spring is fixedly connected to both sides of the baffle. The two sets of springs are respectively fixedly connected to the inner side of the two sets of linkage blocks. A slider is slidably connected to the inner side of the housing and below the baffle. A fixing rod is fixedly connected to the inner side of the slider. Two sets of rotating rods are rotatably connected to the outer side of the fixing rod. A second fixing rod is fixedly connected to the outer side of each of the two sets of linkage blocks. The two sets of rotating rods are respectively rotatably connected to the outer side of the two sets of fixing rods.

2. The buried cable branch box based on a smart grid according to claim 1, characterized in that, The corresponding surfaces of the two sets of sliding doors are respectively provided with waterproof structures, and the corresponding surface of the left sliding door is set as a convex structure, and the corresponding surface of the right sliding door is set as a concave structure, and the convex structure and the concave structure can fit tightly together.

3. A buried cable branch box based on a smart grid according to claim 1, characterized in that, Each of the two sets of linkage blocks has an opening on its corresponding surface, and two sets of springs are fixedly connected to the inside of the two sets of openings. The length and height of the baffle are the same as the openings of the linkage blocks.

4. A buried cable branch box based on a smart grid according to claim 1, characterized in that, The height of the slider is greater than the diameter of the rotating rod, and both the outer side of the housing and the branch box are provided with openings 2 for the cable to enter, and multiple sets of openings 2 are on a straight line.

5. A buried cable branch box based on a smart grid according to claim 1, characterized in that, A water inlet is provided on the outer side of the housing and above the second cavity. A sliding door is slidably connected to the inner side of the housing and below the water inlet. Two sets of rectangular blocks are fixedly connected above the second sliding door. A baffle is fixedly connected to the inner side of the housing and outside the second sliding door. A pressing block is fixedly connected to the lower part of the second sliding door and inside the second baffle. A sliding rod is slidably connected to the inner side of the pressing block. The sliding rod is fixedly connected to the inner side of the housing. A spring is fixedly connected between the pressing block and the housing and outside the sliding rod. A support plate is fixedly connected to the inner side of the housing and inside the second cavity. A compression rod is slidably connected to the outer side of the housing and near the support plate. A limit plate is fixedly connected to the outer side of the compression rod and above the support plate. A float plate is slidably connected to the inner side of the housing and below the compression rod. A rectangular opening is formed between cavity one and cavity two and on the inner side of the housing. A waterproof component is installed on the inner side of the housing and outside the rectangular opening. A heat dissipation box is installed below the branch box. A water outlet pipe is installed on the inner side of the heat dissipation box. A water pump is installed on the inner side of the housing and outside the water outlet pipe. A water outlet is formed above the water outlet pipe on the outer side of the housing. The water outlet pipe is connected to the water outlet.

6. A buried cable branch box based on a smart grid according to claim 5, characterized in that, The waterproof component includes two sets of waterproof grooves, two sets of waterproof inserts, and a rectangular interface. The two sets of waterproof grooves are fixedly connected to the inner side of the housing and inside the cavity. A valve is slidably connected between the two sets of waterproof grooves and outside the rectangular opening. An extension plate is fixedly connected to the outer side of the valve. Two sets of springs are fixedly connected between the lower part of the extension plate and the housing. The two sets of waterproof inserts are assembled on the outer side of the heat sink and on the side near the valve. The rectangular interface is assembled on the outer side of the heat sink and between the two sets of waterproof inserts.

7. A buried cable branch box based on a smart grid according to claim 5, characterized in that, Two sets of grooves are provided on the inner side of the shell and above the second cavity. The two sets of grooves are respectively provided above the two sets of rectangular blocks, and the specifications of the two sets of grooves are the same as those of the rectangular blocks.

8. A buried cable branch box based on a smart grid according to claim 1, characterized in that, Both sets of sliding doors are fixedly connected to a fixed block above each of them. A circular slide plate is slidably connected to the inner side of the fixed block. A roller is rotatably connected to the bottom of the circular slide plate. A connecting plate is fixedly connected to the outer side of the circular slide plate. A sliding plate is fixedly connected to the outer side of the connecting plate. Two sets of guide rods are fixedly connected to the inner side of the sliding plate. Both sets of guide rods are fixedly connected to the outer side of the fixed block. A spring is fixedly connected between the sliding plate and the fixed block and to the outer side of the two sets of guide rods. Multiple sets of protrusions are fixedly connected to the inner side of the housing and between the two sets of fixed blocks.

9. A buried cable branch box based on a smart grid according to claim 8, characterized in that, Both sets of sliding plates have brushes attached to the ventilator at their upper surfaces, and multiple sets of protrusions are evenly distributed on the inner side of the housing, with each set of protrusions having a flat, round structure.