New energy photovoltaic distribution box
By designing auxiliary fire extinguishing modules, trigger modules and power outage modules in the photovoltaic distribution box, the difficulty and electric spark problems of traditional photovoltaic distribution boxes during fires are solved, and efficient internal fire extinguishing and safe fire treatment are achieved.
Patent Information
- Application Number
- CN202510461980.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-14
- Publication Date
- 2025-07-01
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Traditional photovoltaic distribution boxes have problems with short circuit ignition, overheating ignition and DC arcing when facing fires, and the box door is difficult to open quickly, which increases the difficulty and time cost of extinguishing fires.
A new energy photovoltaic distribution box was designed, equipped with auxiliary fire extinguishing modules and trigger modules. The auxiliary fire extinguishing module realizes internal fire extinguishing through pipes and nozzles, and the trigger module connects the pipe head and fire glass balls to automatically activate the fire extinguishing system; at the same time, the power-off module actively turns off the main power supply to prevent electric sparks from occurring in the fire.
It realizes that the fire extinguishing system is automatically activated when the internal fire of the distribution box is on, improving the fire extinguishing efficiency; at the same time, through the role of the power-off module, fire losses are reduced and the safety of external fire extinguishing personnel is ensured.
Smart Images
Figure CN120237541A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of distribution boxes, and in particular to a new energy photovoltaic distribution box. Background Art
[0002] In the photovoltaic power generation system, the photovoltaic distribution box, as a key component, undertakes important responsibilities such as electrical isolation, system installation and maintenance convenience, and safety protection. When the photovoltaic system has faults such as overcurrent and short circuit, it can automatically cut off the circuit, which plays a vital role in the stable operation of the entire photovoltaic system.
[0003] However, there are many problems that need to be solved in traditional photovoltaic distribution boxes. In the actual operation process, affected by various factors, traditional photovoltaic distribution boxes are bound to have short circuit fires and overheating fires. For example, the quality control defects of photovoltaic manufacturers may lead to unqualified welding quality between the busbars and the terminals inside the junction box, resulting in virtual connection and then heat and fire; the junction box is poorly sealed, allowing rain and moisture to enter, reducing the insulation strength, causing internal short circuits and burning fires; the internal wire card process of the junction box is not firmly crimped or virtual, and long-term operation will also cause heat and burning fires. At the same time, the DC arc problem is more prominent in photovoltaic power stations. When a DC arc is generated, the temperature at the cable contact point rises sharply, which may reach a high temperature of 3000-7000℃, which will not only carbonize the surrounding devices, but also easily cause fires. According to research, 40% of fires in photovoltaic power stations are caused by DC arc problems. In addition, when the photovoltaic panel is in operation, if its surface is covered and blocked by debris such as bird droppings, mud, leaves or severe dust, a hot spot effect will be formed, which may eventually cause a fire as the temperature rises.
[0004] What is more serious is that when a fire actually occurs, traditional photovoltaic distribution boxes are usually in a locked state, and the box door is difficult to open quickly in an emergency. This makes it difficult for the fire extinguishing materials sprayed from the fire extinguisher to effectively spray into the distribution box, greatly increasing the difficulty and time cost of fire fighting. In addition, after a fire occurs, the electronic devices inside the traditional photovoltaic distribution box are difficult to respond in time and will continue to pass through, generating sparks. These sparks will continue to ignite the electronic devices, causing them to continue to burn, further increasing the losses caused by the fire.
[0005] In summary, the existing traditional photovoltaic distribution boxes have obvious deficiencies in dealing with fire risks. A new technical solution is urgently needed to solve the above problems in order to improve the safety and reliability of photovoltaic distribution boxes and reduce the hazards and losses caused by fire. Summary of the invention
[0006] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a new energy photovoltaic distribution box to solve the above problems.
[0007] To achieve the above object, the present invention adopts the following technical solutions: A new energy photovoltaic distribution box, including a distribution box body, a box door is hinged in front of the distribution box body, a slope is fixedly connected to the upper surface of the distribution box body, a box door lock is arranged in front of the box door, heat dissipation openings are opened on the outer surface of the distribution box body, an auxiliary fire extinguishing module is arranged on the inner side wall of the distribution box body, a trigger module is fixedly connected to the inner top wall of the distribution box body, and a power-off module is arranged on the inner side wall of the distribution box body.
[0008] Preferably, the auxiliary fire extinguishing module includes a pipe, a connecting inner pipe is fixedly connected to the upper end of the pipe, a nozzle is fixedly connected to the outer surface of the pipe, and a check valve flap is rotatably connected to the inner side wall of one end of the connecting inner pipe through a rotating shaft.
[0009] Preferably, the trigger module includes a trigger module mounting bracket and a telescopic connecting pipe head. A slider is slidably connected to the inner side wall of the trigger module mounting bracket. An installation groove is opened at one end of the slider. A fire-fighting glass ball is clamped to the inner side wall of the installation groove. A spring is arranged between the inner side wall of the trigger module mounting bracket and the slider. A first rotating shaft is fixedly connected to the upper surface of the slider. The telescopic connecting pipe head is sleeved on one end of the connecting inner pipe. A flared opening is opened on the lower surface of the telescopic connecting pipe head. A protective plate is arranged on the outer surface of the telescopic connecting pipe head.
[0010] Preferably, the power-off module includes a guide post. The inner bottom wall on the right side of the guide post is fixedly connected to the distribution box body. A first sliding block is fixedly connected to the outer surface of the guide post. A shift lever is fixedly connected to the outer surface of the first sliding block. A rotating rod is rotatably connected to the inner bottom wall on the left side of the distribution box body. A spiral groove is opened on the outer surface of the rotating rod. A second sliding block is movably connected to the outer surface of the rotating rod. A wire reel is fixedly connected to the upper end of the rotating rod. A steel wire rope is wound around the inner side wall of the wire reel.
[0011] Preferably, four pipes are provided and are symmetrically arranged with each other. A plurality of nozzles are provided and are evenly distributed in a rectangular array.
[0012] Preferably, one end of the fire glass ball abuts against the inner wall of the trigger module mounting bracket, one end of the spring abuts against one end of the slider, the outer surface of the distribution box body is provided with a groove adapted to the outer surface of the protective plate, the upper surface of the telescopic connecting pipe head is fixedly connected to the second rotating shaft, the outer surface of the second rotating shaft is rotatably connected to the first connecting rod, one end of the first connecting rod is rotatably connected to the outer surface of the first rotating shaft, the outer surface of the first rotating shaft is rotatably connected to the second connecting rod, the middle part of the second connecting rod is rotatably connected to the upper surface of the middle part of the connecting inner tube through the third rotating shaft, one end of the second connecting rod is rotatably connected to the third connecting rod, the telescopic connecting pipe head is provided with two and are symmetrically arranged, one end of the third connecting rod is rotatably connected to the outer surface of the second rotating shaft on the upper surface of the left telescopic connecting pipe head.
[0013] Preferably, one end of the lever is fixedly connected to the outer surface of the second sliding block, the inner wall of the second sliding block is fixedly connected with a slider adapted to the spiral groove, and one end of the wire rope is fixedly connected to the outer surface of the first rotating shaft.
[0014] The beneficial effects of the present invention are:
[0015] 1. The present invention cooperates with the auxiliary fire extinguishing module and the trigger module. In actual use, the auxiliary fire extinguishing module is composed of a pipeline, a connecting inner pipe, a nozzle and a one-way valve plate. The pipeline is symmetrically distributed and the nozzles are arranged in a rectangular array; the trigger module includes a trigger module mounting frame, a slider, a fire glass ball, a spring and a telescopic connecting pipe head. When the distribution box is on fire, the trigger module is activated to extend the telescopic connecting pipe head from the inside of the distribution box. The outside world can aim the fire extinguisher at the bell mouth, and the fire extinguishing material enters the pipeline through the telescopic connecting pipe head and the connecting inner pipe in turn, and then is sprayed from the nozzle to the internal electronic devices, so as to realize internal fire extinguishing when the box door cannot be opened, improve the fire extinguishing efficiency, and extinguish the fire when the box door is closed, thereby ensuring the safety of the outside fire extinguishing personnel.
[0016] 2. The present invention cooperates with the trigger module and the power-off module. In actual use, the trigger module and the power-off module work together. The power-off module is composed of a guide column, a first sliding block, a lever, a rotating rod, a spiral groove, a second sliding block, a wire drum and a wire rope. The distribution box is set above the main switch lever. When a fire occurs inside and the temperature rises, the fire glass ball explodes at high temperature. After the trigger module is triggered, transmission occurs, driving related components to descend, and then the main switch lever is toggled to promptly and actively shut down the main power supply to prevent the generation of more electronic sparks, thereby effectively reducing fire losses. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a three-dimensional structural schematic diagram of the present invention in a closed state;
[0018] Figure 2 It is a schematic diagram of the structure of the state after triggering of the present invention;
[0019] Figure 3 This is a schematic structural diagram of the interior of the distribution box body of the present invention;
[0020] Figure 4 This is a three-dimensional schematic structural diagram of the trigger module of the present invention;
[0021] Figure 5 This is a schematic structural diagram of the auxiliary fire extinguishing module of the present invention;
[0022] Figure 6 This is a schematic structural diagram of the telescopic connecting pipe head of the present invention;
[0023] Figure 7 This is a schematic structural diagram of the power-off module of the present invention.
[0024] In the drawings: 1, distribution box body; 2, box door; 3, slope; 4, box door lock; 5, heat dissipation port; 6, pipeline; 7, nozzle; 8, connecting inner pipe; 9, check valve disc; 10, trigger module mounting bracket; 11, slider; 12, mounting groove; 13, fire glass ball; 14, spring; 15, first rotating shaft; 16, telescopic connecting pipe head; 17, bell mouth; 18, protection plate; 19, second rotating shaft; 20, first connecting rod; 21, third rotating shaft; 22, second connecting rod; 23, third connecting rod; 24, guide post; 25, first sliding block; 26, lever; 27, rotating rod; 28, spiral groove; 29, second sliding block; 30, wire reel; 31, steel wire rope. Specific embodiments
[0025] The following will refer to the accompanying drawings of the specification to describe the embodiments of the present invention in detail. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.
[0026] Embodiment:
[0027] Please refer to Figures 1 to 6 , a new energy photovoltaic distribution box, including a distribution box body 1, a box door 2 is hinged to the front of the distribution box body 1, a slope 3 is fixedly connected to the upper surface of the distribution box body 1, a box door lock 4 is arranged on the front of the box door 2, a heat dissipation port 5 is opened on the outer surface of the distribution box body 1, an auxiliary fire extinguishing module is arranged on the inner side wall of the distribution box body 1, a trigger module is fixedly connected to the inner top wall of the distribution box body 1, and a power-off module is arranged on the inner side wall of the distribution box body 1.
[0028] The auxiliary fire extinguishing module includes a pipeline 6. The upper end of the pipeline 6 is fixedly connected with a connecting inner pipe 8. The outer surface of the pipeline 6 is fixedly connected with a nozzle 7. The inner side wall of one end of the connecting inner pipe 8 is rotatably connected with a check valve vane 9 through a rotating shaft. There are four pipelines 6 which are symmetrically arranged. There are several nozzles 7 which are evenly distributed in a rectangular array.
[0029] The triggering module includes a triggering module mounting frame 10 and a telescopic connecting pipe head 16. A slider 11 is slidably connected to the inner side wall of the triggering module mounting frame 10. An installation groove 12 is opened at one end of the slider 11. A fire fighting glass ball 13 is clamped to the inner side wall of the installation groove 12. A spring 14 is arranged between the inner side wall of the triggering module mounting frame 10 and the slider 11. A first rotating shaft 15 is fixedly connected to the upper surface of the slider 11. The telescopic connecting pipe head 16 is sleeved on one end of the connecting inner pipe 8. A flared opening 17 is opened on the lower surface of the telescopic connecting pipe head 16. A protective plate 18 is arranged on the outer surface of the telescopic connecting pipe head 16. One end of the fire fighting glass ball 13 abuts against the inner side wall of the triggering module mounting frame 10. One end of the spring 14 abuts against one end of the slider 11. A groove adapted to the outer surface of the protective plate 18 is opened on the outer surface of the distribution box body 1. A second rotating shaft 19 is fixedly connected to the upper surface of the telescopic connecting pipe head 16. A first connecting rod 20 is rotatably connected to the outer surface of the second rotating shaft 19. One end of the first connecting rod 20 is rotatably connected to the outer surface of the first rotating shaft 15. A second connecting rod 22 is rotatably connected to the outer surface of the first rotating shaft 15. The middle of the second connecting rod 22 is rotatably connected to the upper surface of the middle part of the connecting inner pipe 8 through a third rotating shaft 21. One end of the second connecting rod 22 is rotatably connected to a third connecting rod 23. There are two telescopic connecting pipe heads 16 which are symmetrically arranged. One end of the third connecting rod 23 is rotatably connected to the outer surface of the second rotating shaft 19 on the upper surface of the left telescopic connecting pipe head 16.
[0030] Working principle: When a fire breaks out inside the distribution box and the temperature rises to reach the operating temperature of the fire fighting glass ball 13, the fire fighting glass ball 13 explodes. At this time, under the elastic force of the spring 14, the slider 11 slides inside the triggering module mounting frame 10, driving the first rotating shaft 15 to move. The movement of the first rotating shaft 15 causes the connected first connecting rod 20, second connecting rod 22 and third connecting rod 23 to rotate. Due to the transmission of these connecting rods, the telescopic connecting pipe head 16 sleeved on one end of the connecting inner pipe 8 extends out from inside the distribution box body 1, and the protective plate 18 on its outer surface disengages from the groove on the outer surface of the distribution box body 1. External personnel can aim a fire extinguisher at the flared opening 17 on the lower surface of the telescopic connecting pipe head 16 to spray fire extinguishing materials. The fire extinguishing materials sequentially pass through the telescopic connecting pipe head 16, the connecting inner pipe 8 and enter the pipeline 6. The check valve vane 9 is opened under the pressure of the fire extinguishing materials, so that the fire extinguishing materials are sprayed from the nozzles 7 evenly distributed in a rectangular array on the outer surface of the pipeline 6 towards the electronic devices inside the distribution box to achieve the fire extinguishing operation.
[0031] Please refer to Figures 1 to 7, the triggering module includes a triggering module mounting bracket 10 and a telescopic connecting pipe head 16. A slider 11 is slidably connected to the inner side wall of the triggering module mounting bracket 10. An installation groove 12 is formed at one end of the slider 11. A fire glass ball 13 is clamped to the inner side wall of the installation groove 12. A spring 14 is arranged between the inner side wall of the triggering module mounting bracket 10 and the slider 11. A first rotating shaft 15 is fixedly connected to the upper surface of the slider 11. The telescopic connecting pipe head 16 is sleeved on one end of the connecting inner pipe 8. A flared opening 17 is formed on the lower surface of the telescopic connecting pipe head 16. A protective plate 18 is arranged on the outer surface of the telescopic connecting pipe head 16. One end of the fire glass ball 13 abuts against the inner side wall of the triggering module mounting bracket 10. One end of the spring 14 abuts against one end of the slider 11. A groove adapted to the outer surface of the protective plate 18 is formed on the outer surface of the distribution box body 1. A second rotating shaft 19 is fixedly connected to the upper surface of the telescopic connecting pipe head 16. A first connecting rod 20 is rotatably connected to the outer surface of the second rotating shaft 19. One end of the first connecting rod 20 is rotatably connected to the outer surface of the first rotating shaft 15. A second connecting rod 22 is rotatably connected to the outer surface of the first rotating shaft 15. The middle part of the second connecting rod 22 is rotatably connected to the upper surface of the middle part of the connecting inner pipe 8 through a third rotating shaft 21. One end of the second connecting rod 22 is rotatably connected to a third connecting rod 23. There are two telescopic connecting pipe heads 16 and they are symmetrically arranged. One end of the third connecting rod 23 is rotatably connected to the outer surface of the second rotating shaft 19 on the upper surface of the left telescopic connecting pipe head 16.
[0032] The power-off module includes a guide post 24. The distribution box body 1 is fixedly connected to the inner bottom wall on the right side of the guide post 24. A first sliding block 25 is fixedly connected to the outer surface of the guide post 24. A lever 26 is fixedly connected to the outer surface of the first sliding block 25. A rotating rod 27 is rotatably connected to the inner bottom wall on the left side of the distribution box body 1. A spiral groove 28 is formed on the outer surface of the rotating rod 27. A second sliding block 29 is movably connected to the outer surface of the rotating rod 27. A wire reel 30 is fixedly connected to the upper end of the rotating rod 27. A steel wire rope 31 is wound around the inner side wall of the wire reel 30. One end of the lever 26 is fixedly connected to the outer surface of the second sliding block 29. A slider 11 adapted to the spiral groove 28 is fixedly connected to the inner side wall of the second sliding block 29. One end of the steel wire rope 31 is fixedly connected to the outer surface of the first rotating shaft 15.
[0033] Working principle: When a fire breaks out inside the distribution box and the temperature rises, causing the fire-fighting glass ball 13 to burst, the slider 11 moves downward under the action of the spring 14, driving the first rotating shaft 15 to descend. When the first rotating shaft 15 descends, the steel wire rope 31 wound around the wire reel 30 is pulled. Since the wire reel 30 is fixed to the upper end of the rotating rod 27, the rotating rod 27 rotates accordingly. The spiral groove 28 on the outer surface of the rotating rod 27 cooperates with the slider 11 on the inner side wall of the second sliding block 29, causing the second sliding block 29 to move along the direction of the guide post 24 on the rotating rod 27. When the second sliding block 29 moves, the lever 26 fixedly connected to it moves accordingly. If the distribution box is arranged above the main switch operating lever, the main switch operating lever will be toggled during the movement of the lever 26, closing the main switch and timely cutting off the total power supply to prevent the electronic devices from continuing to conduct electricity and generating electric sparks during the fire, thereby reducing the fire loss.
[0034] In summary, when the overall device is in use: when a fire breaks out inside the distribution box, the temperature will rise rapidly. At this time, the fire-fighting glass ball 13 installed in the trigger module will burst after sensing the high temperature. After the fire-fighting glass ball 13 bursts, the spring 14 ejects the slider 11, pushing the slider 11 to slide in the trigger module mounting bracket 10. The sliding of the slider 11 drives the upper first rotating shaft 15 to move. The first rotating shaft 15 is also connected to many connecting rods. When these connecting rods move, the telescopic connecting pipe head 16 is pushed out of the distribution box. In this way, people outside can use a fire extinguisher to spray the fire extinguishing agent at the bell mouth 17 below the telescopic connecting pipe head 16. The fire extinguishing agent enters the pipeline 6 along the connecting inner pipe 8 and is then sprayed into the distribution box from the nozzle 7 on the pipeline 6 to extinguish the fire. At the same time, the movement of the first rotating shaft 15 will also pull the steel wire rope 31. The steel wire rope 31 is wound around the wire reel 30 on the rotating rod 27. After the rotating rod 27 rotates, the second sliding block 29 will move on the spiral groove 28 of the rotating rod 27. The second sliding block 29 is also connected to the lever 26, and the lever 26 will toggle the operating lever of the main switch, closing the main switch, cutting off the power supply, avoiding the generation of more electric sparks, and reducing the fire loss.
[0035] It should be noted that in the description of the present invention, the terms indicating directions or position relationships such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or position relationships shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.
[0036] In addition, it should be noted that in the description of the present invention, unless otherwise clearly defined and limited, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0037] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.
Claims
1. A new energy photovoltaic distribution box, comprising a distribution box body (1), a box door (2) hingedly connected to the front of the distribution box body (1), a slope (3) fixedly connected to the upper surface of the distribution box body (1), a box door lock (4) arranged in front of the box door (2), a heat dissipation port (5) opened on the outer surface of the distribution box body (1), an auxiliary fire extinguishing module arranged on the inner side wall of the distribution box body (1), a trigger module fixedly connected to the inner top wall of the distribution box body (1), and a power-off module arranged on the inner side wall of the distribution box body (1).
2. A new energy photovoltaic distribution box according to claim 1, characterized in that: The auxiliary fire extinguishing module comprises a pipe (6), the upper end of the pipe (6) is fixedly connected to a connecting inner pipe (8), the outer surface of the pipe (6) is fixedly connected to a nozzle (7), and the inner side wall of one end of the connecting inner pipe (8) is rotatably connected to a one-way valve plate (9) via a rotating shaft.
3. A new energy photovoltaic distribution box according to claim 1, characterized in that: The trigger module comprises a trigger module mounting frame (10) and a telescopic connecting pipe head (16); the inner side wall of the trigger module mounting frame (10) is slidably connected to a slider (11); one end of the slider (11) is provided with a mounting groove (12); the inner side wall of the mounting groove (12) is clamped with a fire glass ball (13); a spring (14) is provided between the inner side wall of the trigger module mounting frame (10) and the slider (11); the upper surface of the slider (11) is fixedly connected to a first rotating shaft (15); the telescopic connecting pipe head (16) is sleeved on one end of the connecting inner pipe (8); the lower surface of the telescopic connecting pipe head (16) is provided with a bell mouth (17); and the outer surface of the telescopic connecting pipe head (16) is provided with a protective plate (18).
4. A new energy photovoltaic distribution box according to claim 1, characterized in that: The power-off module comprises a guide column (24), the inner bottom wall on the right side of the guide column (24) is fixedly connected to a distribution box body (1), the outer surface of the guide column (24) is fixedly connected to a first sliding block (25), the outer surface of the first sliding block (25) is fixedly connected to a lever (26), the inner bottom wall on the left side of the distribution box body (1) is rotatably connected to a rotating rod (27), a spiral groove (28) is provided on the outer surface of the rotating rod (27), a second sliding block (29) is movably connected to the outer surface of the rotating rod (27), the upper end of the rotating rod (27) is fixedly connected to a wire drum (30), and a steel wire rope (31) is wound around the inner side wall of the wire drum (30).
5. A new energy photovoltaic distribution box according to claim 2, characterized in that: The pipelines (6) are provided in four numbers and are arranged symmetrically with each other, and the nozzles (7) are provided in a plurality and are evenly distributed in a rectangular array.
6. A new energy photovoltaic distribution box according to claim 3, characterized in that: One end of the fire glass ball (13) abuts against the inner wall of the trigger module mounting frame (10), one end of the spring (14) abuts against one end of the slider (11), the outer surface of the distribution box body (1) is provided with a groove adapted to the outer surface of the protective plate (18), the upper surface of the telescopic connecting pipe head (16) is fixedly connected to the second rotating shaft (19), the outer surface of the second rotating shaft (19) is rotatably connected to the first connecting rod (20), one end of the first connecting rod (20) is connected to the outer surface of the first rotating shaft (15), and the second rotating shaft (19) is rotatably connected to the first rotating shaft (15). The first rotating shaft (15) is rotatably connected to the outer surface of the second connecting rod (22), the middle part of the second connecting rod (22) is rotatably connected to the upper surface of the middle part of the connecting inner tube (8) through the third rotating shaft (21), one end of the second connecting rod (22) is rotatably connected to the third connecting rod (23), the telescopic connecting pipe head (16) is provided with two and symmetrically arranged, one end of the third connecting rod (23) is rotatably connected to the outer surface of the second rotating shaft (19) on the upper surface of the left telescopic connecting pipe head (16).
7. A new energy photovoltaic distribution box according to claim 4, characterized in that: One end of the lever (26) is fixedly connected to the outer surface of the second sliding block (29), the inner side wall of the second sliding block (29) is fixedly connected to a sliding block adapted to the spiral groove (28), and one end of the steel wire rope (31) is fixedly connected to the outer surface of the first rotating shaft (15).