A terminal safety protection device for distribution network

Abstract

The present invention discloses a terminal safety protection device for a power distribution network, comprising a distribution box, wherein a condensing device is fixedly connected to the top of the distribution box, and a self-locking device is arranged on one side of the distribution box. In the above scheme, when water vapor passes through the inside of a metal condensation plate, condensation occurs on the metal condensation plate, and under the action of the arc surface of the arc groove, the water vapor flows into the inside of a guide groove, and finally enters the inside of a water accumulation groove, and is discharged from a guide pipe, thereby realizing a dehumidification function for the inside of the box body, and then realizing dehumidification for the inside of the box body, avoiding excessive humidity, which affects the service life of electronic components, and at the same time, avoiding excessive humidity, which causes the performance of the insulating material inside the distribution box to decrease, thereby causing short circuit, leakage and other faults. By arranging a locking device and a driving component, the box body is self-locked, and personal injury to outsiders is avoided, which is convenient for improving the automatic dehumidification and heat dissipation effects of the box body, and improving the safety of the box body.

Description

Technical Field

[0001] The present invention relates to the technical field of power distribution network protection, and more specifically, to a terminal safety protection device for a power distribution network. Background Art

[0002] The distribution network is composed of overhead lines, cables, towers, distribution transformers, disconnectors, reactive power compensators and some ancillary facilities, and plays an important role in distributing electric energy in the power grid. The intelligent distribution network system and power automation system are composed of three parts: the master station, the communication system, and the automated monitoring terminal equipment, forming a complete information transmission and processing system to achieve remote management of the distribution network operation. Among them, the distribution box is an important component, and it is equipped with many important electronic components. The safety of electronic components is the key to determine the safety and reliability of power supply.

[0003] Since the electronic components inside the distribution box are more sensitive to temperature and humidity, and the temperature and humidity inside the distribution box directly determine the aging speed of the electronic components and the replacement frequency of equipment parts, especially the humidity of the distribution box, a distribution box with high humidity not only affects the service life of the electronic components, but also easily leads to the degradation of the performance of the insulating materials inside the distribution box, which in turn causes short circuits, leakage and other faults. Summary of the invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a terminal safety protection device for a distribution network, which avoids excessive humidity and affects the service life of electronic components. At the same time, it avoids excessive humidity that causes the performance of insulating materials inside the distribution box to deteriorate, thereby causing short circuits, leakage and other faults, and realizes overheating protection, avoids the internal temperature of the box from being too high, causing aging of components inside the box, and then affecting the service life of components inside the box, and avoids personal injury to outsiders, facilitates improving the automatic dehumidification and heat dissipation effect of the box, and improves the safety of the box, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions: a terminal safety protection device for a distribution network, comprising a distribution box, a condensing device is fixedly connected to the top of the distribution box, and a self-locking device is provided on one side of the distribution box.

[0006] The distribution box includes a box body, a switch door is hingedly installed on one side of the box body, a first vent is fixedly connected to the bottom end of one side of the box body, a first fan assembly is arranged inside the first vent, a temperature and humidity sensor is arranged inside the box body, a top cover is fixedly connected to the top of the box body, third ventilation slots are arranged on both sides of the top cover, and a second vent is arranged at the upper end of the box body away from the first vent.

[0007] The condensing device includes a guide component, a metal condensation plate is fixedly installed on the top of the guide component, the metal condensation plate is fixedly installed at the upper end of the inside of the box, a plurality of arc grooves are opened at the bottom of the metal condensation plate, a first connecting groove is opened inside the metal condensation plate, the first connecting groove is connected with the arc groove, a plurality of semiconductor refrigeration plates are embedded and installed on the top of the metal condensation plate, a plurality of the semiconductor refrigeration plates and the arc grooves are staggeredly arranged inside the metal condensation plate, a fixing frame is fixedly connected to the top of the metal condensation plate, and a second fan assembly is arranged inside the fixing frame.

[0008] In a preferred embodiment, the guide assembly includes a bottom plate, a plurality of guide grooves are opened on the top of the bottom plate, a plurality of second connecting grooves are opened inside the bottom plate, a water accumulation groove is fixedly connected to the middle of the bottom plate, and a guide pipe is fixedly connected to one side of the water accumulation groove.

[0009] In a preferred embodiment, the guide groove has a trapezoidal shape, the guide groove is connected to the water accumulation groove, the guide groove is inclined, and one end of the guide groove close to the water accumulation groove is lower than the other end, the bottom plate is fixedly installed on the bottom of the metal condensation plate, the second connecting groove corresponds to the position of the first connecting groove, and the guide groove is located at the bottom of both sides of the arc groove.

[0010] In a preferred embodiment, the self-locking device includes a locking device, a drive assembly and a switch fan, the switch fan is rotatably installed inside the second vent, and the drive assembly is movably installed on one side of the switch fan.

[0011] In a preferred embodiment, the driving assembly includes a support frame, a rotating motor is fixedly connected to the top of the support frame, a driving gear is fixedly connected to the bottom of the rotating motor, the driving gear is rotatably installed on the bottom of the support frame, a connecting rod is slidably installed on the bottom of the support frame, one side of the connecting rod is fixedly connected to a first fixed rack, one side of the first fixed rack is meshed with the outer surface of the driving gear, one side of one end of the connecting rod is fixedly connected to a movable block, and both ends of one side of the movable block are fixedly connected to clamping blocks.

[0012] In a preferred embodiment, the locking device includes a support frame and a movable groove, the movable groove is opened at one end of the side of the box body away from the switch door, a through hole is opened at one end of the interior of the box body close to the movable groove, a pressing plate is movably sleeved on the top of the movable groove, a pressing block is fixedly connected to the bottom of the pressing plate, a card slot is opened on one side of the pressing block, the pressing block is movably sleeved in the interior of the movable groove, a pressing spring is fixedly connected to the bottom of the pressing block, the pressing spring is movably sleeved on the bottom of the movable groove, and the bottom of the pressing spring is fixedly connected to the bottom of the movable groove.

[0013] In a preferred embodiment, the movable block is movably sleeved on the bottom of the lock body, the locking block is inserted into the inside of the locking slot, and the support frame is fixedly mounted on one side of the box body.

[0014] In a preferred embodiment, the switch fan includes a plurality of limit blocks, the limit blocks are fixedly mounted on one side of the interior of the box body, a moving rod is movably sleeved inside the limit blocks, the moving rod is slidably mounted on one side of the inner wall of the box body, one end of the moving rod is fixedly connected to one end of a connecting rod, one side of the moving rod is fixedly connected to a second fixed rack, the direction of the second fixed rack is opposite to that of the connecting rod, and a transmission gear is meshed and mounted on the side of the second fixed rack.

[0015] In a preferred embodiment, a rotating shaft is fixedly connected to the interior of the transmission gear, a fan blade is fixedly sleeved on the outer surface of the rotating shaft, and the rotating shaft and the fan blade are rotatably installed inside the second vent.

[0016] Technical effects and advantages of the present invention:

[0017] 1. In the present invention, air passes through the first vent, takes away the water vapor inside the box, and is discharged from the second connecting groove and the first connecting groove, so that the semiconductor refrigeration plate cools the metal condensation plate. When the water vapor passes through the inside of the metal condensation plate, it condenses with the metal condensation plate, and under the action of the arc surface of the arc groove, it flows into the inside of the guide groove, and finally enters the inside of the water storage groove and is discharged from the guide pipe, thereby realizing the dehumidification function of the inside of the box, and then dehumidifying the inside of the box, avoiding excessive humidity, affecting the service life of electronic components, and at the same time, avoiding excessive humidity causing the performance of the insulating material inside the distribution box to decrease, thereby causing short circuit, leakage and other faults.

[0018] 2. In the present invention, when air enters the interior of the box through the first connecting groove and the second connecting groove, the air passes through the metal condensation plate and the semiconductor refrigeration plate for heat exchange to become cold air, thereby lowering the temperature inside the box, achieving internal cooling of the box, and realizing overheating protection, thereby preventing the internal temperature of the box from being too high, causing aging of components inside the box, and thus affecting the service life of the components inside the box.

[0019] 3. The present invention realizes self-locking of the box by setting a locking device and a driving component. Outsiders cannot open the door during the dehumidification or heat dissipation process of the box, making the box safer and avoiding personal injury to outsiders. It is convenient to improve the automatic dehumidification and heat dissipation effect of the box and improve the safety of the box. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 It is a schematic diagram of the cross-sectional structure of the condensing device of the present invention.

[0022] Figure 3 It is a schematic diagram of the structure of the flow guide component of the present invention.

[0023] Figure 4 It is a schematic structural diagram of the self-locking device of the present invention.

[0024] Figure 5 It is a schematic diagram of the structure of the driving component of the present invention.

[0025] Figure 6 It is a schematic diagram of the structure of the locking device of the present invention.

[0026] Figure 7 It is a schematic diagram of the structure of the switch fan part of the present invention.

[0027] The accompanying drawings are marked as follows: 1, distribution box; 2, self-locking device; 3, condensing device; 11, box body; 12, switch door; 13, first vent; 14, second vent; 15, top cover; 16, third vent slot; 17, temperature and humidity sensor; 21, locking device; 22, driving assembly; 23, switch fan; 211, lock body; 212, movable slot; 213, through hole; 214, pressing plate; 215, pressing block; 216, card slot; 217, pressing spring; 221, support frame; 222, rotating motor; 223, driving gear; 2 24. Connecting rod; 225. First fixed rack; 226. Movable block; 227. Block; 231. Limit block; 232. Moving rod; 233. Second fixed rack; 234. Fan blade; 235. Rotating shaft; 236. Transmission gear; 31. Guide assembly; 32. Metal condensation plate; 33. First connecting groove; 34. Arc groove; 35. Semiconductor cooling plate; 36. Fixed frame; 37. Second fan assembly; 311. Bottom plate; 312. Guide groove; 313. Second connecting groove; 314. Water accumulation groove; 315. Guide pipe. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] First embodiment

[0030] As attached Figure 1-3This is an embodiment of the present invention. The temperature and humidity of the box 11 are sensed by the temperature and humidity sensor 17. When the humidity of the box 11 is high, the first fan assembly inside the first ventilation port 13 is started, so that air passes through the first ventilation port 13, takes away the water vapor inside the box 11, and is discharged from the second connecting groove 313 and the first connecting groove 33, so that the semiconductor refrigeration plate 35 cools the metal condensation plate 32. When the water vapor passes through the inside of the metal condensation plate 32, it condenses with the metal condensation plate 32, and under the action of the arc surface of the arc groove 34, it flows into the inside of the guide groove 312, and finally enters the inside of the water accumulation groove 314, and is discharged from the guide pipe 315, thereby realizing the dehumidification function of the inside of the box 11, and then dehumidifying the inside of the box 11 to avoid excessive humidity.

[0031] A terminal safety protection device for a distribution network comprises a distribution box 1, a condensing device 3 is fixedly connected to the top of the distribution box 1, and a self-locking device 2 is arranged on one side of the distribution box 1.

[0032] The distribution box 1 includes a box body 11, a switch door 12 is hingedly installed on one side of the box body 11, a first vent 13 is fixedly connected to the bottom end of one side of the box body 11, a first fan assembly is arranged inside the first vent 13, a temperature and humidity sensor 17 is arranged inside the box body 11, a top cover 15 is fixedly connected to the top of the box body 11, third ventilation slots 16 are arranged on both sides of the top cover 15, and a second vent 14 is arranged at the upper end of the box body 11 away from the first vent 13.

[0033] Through the second ventilation opening 14 , when the temperature and humidity inside the distribution box 1 are at normal levels, the second ventilation opening 14 is in an open state, thereby facilitating ventilation inside the box body 11 and dissipating heat inside the box body 11 .

[0034] The condensing device 3 includes a guide component 31, a metal condensing plate 32 is fixedly installed on the top of the guide component 31, the metal condensing plate 32 is fixedly installed at the upper end of the box body 11, a plurality of arc grooves 34 are provided at the bottom of the metal condensing plate 32, a first connecting groove 33 is provided inside the metal condensing plate 32, the first connecting groove 33 is connected to the arc groove 34, a plurality of semiconductor cooling plates 35 are embedded and installed on the top of the metal condensing plate 32, the plurality of semiconductor cooling plates 35 and the arc grooves 34 are staggered inside the metal condensing plate 32, a fixing frame 36 is fixedly connected to the top of the metal condensing plate 32, and a second fan assembly 37 is arranged inside the fixing frame 36.

[0035] The metal condensation plate 32 is cooled by using the semiconductor refrigeration sheet 35. When the hot water vapor passes through the first connecting groove 33 and the metal condensation plate 32, it condenses into beads at the bottom of the metal condensation plate 32 and, under the influence of gravity, slides down from the bottom of the arc groove 34 and drips into the interior of the guide groove 312, thereby achieving a dehumidification effect.

[0036] Among them, the guide assembly 31 includes a bottom plate 311, a plurality of guide grooves 312 are opened on the top of the bottom plate 311, a plurality of second connecting grooves 313 are opened inside the bottom plate 311, a water accumulation groove 314 is fixedly connected to the middle of the bottom plate 311, and a guide pipe 315 is fixedly connected to one side of the water accumulation groove 314.

[0037] Among them, the guide groove 312 has a trapezoidal shape, the guide groove 312 is connected with the water accumulation groove 314, the guide groove 312 is inclined, and one end of the guide groove 312 close to the water accumulation groove 314 is lower than the other end, the bottom plate 311 is fixedly installed on the bottom of the metal condensation plate 32, the second connecting groove 313 corresponds to the position of the first connecting groove 33, and the guide groove 312 is located at the bottom of both sides of the arc groove 34.

[0038] The guide groove 312 is located at the bottom of the side of the arc groove 34, so that the condensed beads can slide through the arc surface of the arc groove 34 and enter the interior of the guide groove 312, and through the inclined bottom of the guide groove 312, the condensed beads can slide into the interior of the water accumulation groove 314, thereby facilitating discharge.

[0039] Second embodiment

[0040] As attached Figure 1-3 As an embodiment of the present invention, in order to facilitate the heat dissipation inside the box body 11, a second fan assembly 37 is arranged on the top of the metal condensation plate 32. When the temperature and humidity sensor 17 senses that the temperature inside the box body 11 is too high, the second fan assembly 37 is started, allowing air to enter through the third ventilation slot 16 and be discharged from the first ventilation port 13. When the air enters the interior of the box body 11 from the second connecting slot 313 through the first connecting slot 33, the air passes through the metal condensation plate 32 and exchanges heat through the semiconductor refrigeration plate 35 to become cold air, thereby reducing the temperature inside the box body 11, achieving internal cooling of the box body 11, and realizing overheating protection, thereby preventing the internal temperature of the box body 11 from being too high, causing aging of components inside the box body 11, and further affecting the service life of the components inside the box body 11.

[0041] Third embodiment

[0042] As attached Figure 4-7 This is an embodiment of the present invention. In order to improve the automatic dehumidification and heat dissipation effect of the box 11, and because the box 11 will generate a higher voltage when working, in order to improve the safety of the box 11, a locking device 21 and a drive component 22 are provided to achieve self-locking of the box 11. During the dehumidification or heat dissipation process of the box 11, outsiders cannot open the switch door 12, making the box 11 safer and avoiding personal injury to outsiders.

[0043] As attached Figure 4-5As shown, the self-locking device 2 includes a locking device 21 , a driving assembly 22 and a switch fan 23 . The switch fan 23 is rotatably installed inside the second vent 14 , and the driving assembly 22 is movably installed on one side of the switch fan 23 .

[0044] Among them, the driving component 22 includes a support frame 221, the top of the support frame 221 is fixedly connected to a rotating motor 222, the bottom of the rotating motor 222 is fixedly connected to a driving gear 223, the driving gear 223 is rotatably installed at the bottom of the support frame 221, and a connecting rod 224 is slidably installed at the bottom of the support frame 221, one side of the connecting rod 224 is fixedly connected to a first fixed rack 225, one side of the first fixed rack 225 is meshed with the outer surface of the driving gear 223, one side of one end of the connecting rod 224 is fixedly connected to a movable block 226, and both ends of one side of the movable block 226 are fixedly connected to a clamping block 227.

[0045] As attached Figure 6 As shown, the locking device 21 includes a support frame 221 and a movable groove 212. The movable groove 212 is opened at one end of the side of the box body 11 away from the switch door 12. A through hole 213 is opened at one end of the interior of the box body 11 close to the movable groove 212. A pressing plate 214 is movably sleeved on the top of the movable groove 212, and a pressing block 215 is fixedly connected to the bottom of the pressing plate 214. A card slot 216 is opened on one side of the pressing block 215. The pressing block 215 is movably sleeved in the interior of the movable groove 212, and a pressing spring 217 is fixedly connected to the bottom of the movable groove 212. The pressing spring 217 is movably sleeved on the bottom of the movable groove 212, and the bottom of the pressing spring 217 is fixedly connected to the bottom of the movable groove 212.

[0046] The movable block 226 is movably sleeved on the bottom of the lock body 211 , the locking block 227 is inserted into the inside of the locking slot 216 , and the support frame 221 is fixedly installed on one side of the box body 11 .

[0047] When the box body 11 is in the dehumidification or cooling mode, the rotating motor 222 controls the driving gear 223 to rotate, so that the connecting rod 224 pushes the movable block 226 to move to one side of the pressing block 215, so that the card block 227 is engaged in the inside of the card slot 216. At this time, when an outsider wants to use the key to open the lock body 211 by pressing the pressing plate 214, because the card block 227 is engaged in the inside of the card slot 216, the pressing plate 214 cannot be pressed down, and the pressing plate 214 will not drop, and the through hole 213 cannot be opened.

[0048] As attached Figure 7As shown, the switch fan 23 includes a plurality of limit blocks 231, the limit blocks 231 are fixedly mounted on one side of the inside of the box body 11, a moving rod 232 is movably sleeved inside the limit blocks 231, the moving rod 232 is slidably mounted on one side of the inner wall of the box body 11, one end of the moving rod 232 is fixedly connected to one end of the connecting rod 224, one side of the moving rod 232 is fixedly connected to a second fixed rack 233, the direction of the second fixed rack 233 is opposite to that of the connecting rod 224, and a transmission gear 236 is meshed and mounted on the side of the second fixed rack 233.

[0049] The interior of the transmission gear 236 is fixedly connected with a rotating shaft 235 , the outer surface of the rotating shaft 235 is fixedly sleeved with a fan blade 234 , and the rotating shaft 235 and the fan blade 234 are rotatably installed inside the second vent 14 .

[0050] In order to improve the dehumidification and heat dissipation effects of the box 11, when the box 11 is dissipating heat or dehumidifying, the rotating motor 222 controls the movement of the connecting rod 224, which will pull the moving rod 232 to move, so that the second fixed rack 233 moves, and through transmission, the transmission gear 236 rotates, and the rotating shaft 235 drives the fan blades 234 to rotate, so that the second vent 14 is in a closed state, thereby facilitating the connection between the first vent 13 and the third ventilation slot 16.

[0051] The working principle of the present invention is as follows: the temperature and humidity of the box body 11 are sensed by the temperature and humidity sensor 17. When the humidity of the box body 11 is high, the first fan assembly inside the first ventilation port 13 is started, so that air passes through the first ventilation port 13, takes away the water vapor inside the box body 11, and is discharged from the second connecting groove 313 and the first connecting groove 33, so that the semiconductor refrigeration plate 35 cools the metal condensation plate 32. When the water vapor passes through the inside of the metal condensation plate 32, it condenses with the metal condensation plate 32, and under the action of the arc surface of the arc groove 34, it flows into the inside of the guide groove 312, and finally enters the inside of the water accumulation groove 314, and is discharged from the guide pipe 315, thereby realizing the dehumidification function of the inside of the box body 11, and then dehumidifying the inside of the box body 11 to avoid excessive humidity.

[0052] When the temperature and humidity sensor 17 senses that the temperature inside the box 11 is too high, the second fan assembly 37 starts, allowing air to enter through the third ventilation slot 16 and be discharged from the first vent 13. When the air enters the interior of the box 11 from the second connecting slot 313 through the first connecting slot 33, the air passes through the metal condensation plate 32 and exchanges heat through the semiconductor refrigeration plate 35 to become cold air, thereby reducing the temperature inside the box 11 and achieving internal cooling of the box 11.

[0053] When the box body 11 is in the dehumidification or heat dissipation mode, the rotating motor 222 will control the driving gear 223 to rotate, so that the connecting rod 224 pushes the movable block 226 to move to one side of the pressing block 215, so that the card block 227 is locked in the inside of the card slot 216. At this time, when an outsider wants to use the key to open the lock body 211 by pressing the pressing plate 214, because the card block 227 is locked in the inside of the card slot 216, the pressing plate 214 cannot be pressed down, and the pressing plate 214 will not be lowered, and the through hole 213 cannot be opened. At the same time, in the process of the rotating motor 222 controlling the movement of the connecting rod 224, the moving rod 232 will be pulled to move, so that the second fixed rack 233 moves, and through transmission, the transmission gear 236 rotates, and the rotating shaft 235 drives the fan blade 234 to rotate, so that the second vent 14 is in a closed state, thereby facilitating the connection between the first vent 13 and the third vent slot 16.

[0054] Finally, a few points should be explained: the drawings of the embodiments disclosed in the present invention only involve structures related to the embodiments disclosed in the present invention, and other structures can refer to the usual design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A terminal safety protection device for a distribution network, comprising a distribution box (1), characterized in that: A condensing device (3) is fixedly connected to the top of the distribution box (1), and a self-locking device (2) is provided on one side of the distribution box (1); The distribution box (1) comprises a box body (11), a switch door (12) is hingedly mounted on one side of the box body (11), a first vent (13) is fixedly connected to the bottom end of one side of the box body (11), a first fan assembly is arranged inside the first vent (13), a temperature and humidity sensor (17) is arranged inside the box body (11), a top cover (15) is fixedly connected to the top of the box body (11), third ventilation slots (16) are arranged on both sides of the top cover (15), and a second vent (14) is arranged at the upper end of the box body (11) away from the first vent (13); The condensing device (3) comprises a flow guide component (31), a metal condensing plate (32) is fixedly mounted on the top of the flow guide component (31), the metal condensing plate (32) is fixedly mounted at the upper end inside the box body (11), a plurality of arc-shaped grooves (34) are provided at the bottom of the metal condensing plate (32), a first connecting groove (33) is provided inside the metal condensing plate (32), the first connecting groove (33) is connected to the arc-shaped groove (34), a plurality of semiconductor cooling plates (35) are embedded and mounted on the top of the metal condensing plate (32), the plurality of semiconductor cooling plates (35) and the arc-shaped grooves (34) are staggeredly arranged inside the metal condensing plate (32), a fixing frame (36) is fixedly connected to the top of the metal condensing plate (32), and a second fan component (37) is arranged inside the fixing frame (36); The self-locking device (2) comprises a locking device (21), a driving assembly (22) and a switch fan (23); the switch fan (23) is rotatably mounted inside the second vent (14); and the driving assembly (22) is movably mounted on one side of the switch fan (23); The driving assembly (22) comprises a support frame (221), the top of the support frame (221) is fixedly connected to a rotating motor (222), the bottom of the rotating motor (222) is fixedly connected to a driving gear (223), the driving gear (223) is rotatably mounted on the bottom of the support frame (221), a connecting rod (224) is slidably mounted on the bottom of the support frame (221), one side of the connecting rod (224) is fixedly connected to a first fixed rack (225), one side of the first fixed rack (225) is meshed with an outer surface of the driving gear (223), one side of one end of the connecting rod (224) is fixedly connected to a movable block (226), and both ends of one side of the movable block (226) are fixedly connected to clamping blocks (227); The locking device (21) comprises a support frame (221) and a movable groove (212); the movable groove (212) is provided at one end of the side of the box body (11) away from the switch door (12); a through hole (213) is provided inside the box body (11) at one end close to the movable groove (212); a pressing plate (214) is movably sleeved on the top of the movable groove (212); a pressing block (215) is fixedly connected to the bottom of the pressing plate (214); a clamping groove (216) is provided on one side of the pressing block (215); the pressing block (215) is movably sleeved inside the movable groove (212); a pressing spring (217) is fixedly connected to the bottom of the pressing block (215); the pressing spring (217) is movably sleeved on the bottom of the movable groove (212); and the bottom of the pressing spring (217) is fixedly connected to the bottom of the movable groove (212); The movable block (226) is movably sleeved on the bottom of the lock body (211), the clamping block (227) is inserted into the inside of the clamping slot (216), and the support frame (221) is fixedly mounted on one side of the box body (11); The switch fan (23) comprises a plurality of limit blocks (231), wherein the limit blocks (231) are fixedly mounted on one side of the interior of the box body (11), wherein a moving rod (232) is movably sleeved inside the limit blocks (231), wherein the moving rod (232) is slidably mounted on one side of the inner wall of the box body (11), wherein one end of the moving rod (232) is fixedly connected to one end of a connecting rod (224), wherein one side of the moving rod (232) is fixedly connected to a second fixed rack (233), wherein the direction of the second fixed rack (233) is opposite to that of the connecting rod (224), and a transmission gear (236) is meshingly mounted on the side edge of the second fixed rack (233); The interior of the transmission gear (236) is fixedly connected to a rotating shaft (235), the outer surface of the rotating shaft (235) is fixedly sleeved with a fan blade (234), and the rotating shaft (235) and the fan blade (234) are rotatably mounted inside the second vent (14).

2. A terminal safety protection device for a distribution network according to claim 1, characterized in that: The flow guide assembly (31) comprises a bottom plate (311), a plurality of flow guide grooves (312) are provided on the top of the bottom plate (311), a plurality of second communication grooves (313) are provided inside the bottom plate (311), a water accumulation groove (314) is fixedly connected to the middle of the bottom plate (311), and a flow guide pipe (315) is fixedly connected to one side of the water accumulation groove (314).

3. A terminal safety protection device for a distribution network according to claim 2, characterized in that: The guide groove (312) has a trapezoidal shape, the guide groove (312) is connected to the water sump (314), the guide groove (312) is inclined, and one end of the guide groove (312) close to the water sump (314) is lower than the other end, the bottom plate (311) is fixedly mounted on the bottom of the metal condensation plate (32), the second connecting groove (313) corresponds to the position of the first connecting groove (33), and the guide groove (312) is located at the bottom of both sides of the arc groove (34).

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