38results about How to "Avoid the phenomenon of stagnant water" patented technology

The invention relates to a roof drainage device, in particular to an impurity and water separating device special for roof drainage. The impurity and water separating device special for roof drainage is convenient to install and maintain, impurities and water on a roof are separated, the phenomenon that water discharging pipe is blocked is avoided, and troubles in life of people are reduced. The impurity and water separating device special for roof drainage comprises a pipe body, a flow guiding plate, a first bearing seat, a first rotary shaft, a second bearing seat, a first net plate, an impurity discharging pipeline, a clamping unit, a collecting tube, a backflow connector and the like. The pipe body is a hollow cylinder, and the flow guiding plate is obliquely installed on the left side of the top in the pipe body. According to the impurity and water separating device special for roof drainage, the effects that installation and maintenance are convenient, drainage operation can be well conducted on the roof, roof water collecting is avoided, and the troubles in the life of the people are reduced are achieved.

The invention relates to the technical field of power supply equipment and discloses a dustproof and dampproof power distribution cabinet which comprises a power distribution cabinet body, wherein aninstallation plate is fixedly arranged in the power distribution cabinet body, a power distributor is fixedly arranged on the front side of the installation plate, a partition plate arranged on the front side of the installation plate is fixedly arranged on one side of the power distributor, a base is fixedly connected to the bottom end of the power distribution cabinet body, a venting hole is formed in the top of one side of the base, a dampproof layer is arranged at the bottom end of an inner cavity of the base, a servo motor is fixedly arranged at the top end of the inner cavity of the base, and an outer wall of the servo motor is fixedly sleeved in the box body at the top end of the inner cavity of the base. The dustproof dampproof power distribution cabinet is provided with the base,the venting hole, the dampproof layer, the servo motor and a fan, so that air around the base can be circulated; by means of air circulation, moisture near the base can be prevented from increasing; as the moisture near the base is reduced, dehumidifying and dampproof effects are achieved, and the power distribution cabinet is ensured to be prevented from the damp phenomenon.

The invention relates to a water tank control method and device and a sweeping robot, and belongs to the technical field of robots. The water tank control method includes the steps that the type of aground on which the sweeping robot travels is detected; if the ground is a floor, a water tank is controlled to supply water to a flow passage, and water is supplied to a cleaning cloth through a water seeping strip to wipe the floor; if the ground is a carpet, the water tank is controlled to stop water supply, and water remaining in the flow passage is sucked back into the water tank. Whether theground on which the sweeping robot travels is a floor or a carpet can be automatically recognized; when the sweeping robot travels on the floor, the water tank is controlled to supply water to the flow passage, and water is supplied to the cleaning cloth through the water seeping strip; when the sweeping robot travels on the carpet, not only is the water outlet of the water tank closed, but alsoaccumulated water remaining in the flow passage is sucked back into the water tank and water supply to the cleaning cloth is stopped so as to avoid water accumulation on the carpet.

The invention discloses an electromagnetic pressure protection water discharge valve. The valve is connected between a water discharge inlet and a water discharge outlet, and comprises a valve body and a valve, wherein a water discharge passage is formed in the valve body; the valve is movably arranged in the water discharge passage; the valve body is provided with an electromagnetic valve; and the valve is arranged on the electromagnetic valve and is opened and closed through the action of an armature of the electromagnetic valve. Due to the adoption of the electromagnetic valve, the water discharge valve is opened and closed through the action of the electromagnetic valve, so that water is not required to be discharged by squeezing by using the gravity of the water to prevent the phenomenon of water logging due to incapable discharge of a small amount of water when the water is available, and the valve is not required to be sealed through air pressure to overcome the defect of difficulty in sealing of the valve in the presence of insufficient air pressure when the water is not available, and the valve is not influenced by vibration produced during running of a train to prevent water leakage and air leakage phenomena caused by the vibration; and the valve fills the blank in the technology of the pressure protection water discharge valve of a domestic high speed train of China and has great practical value for the domestication of the China high-speed multiple units.

The invention relates to the technical field of power equipment and specifically relates to an energy-saving rainproof power distribution cabinet. The cabinet comprises a cabinet body, and a central processor disposed in the cabinet body. The top cover of the cabinet body is provided with a rotating table, and the rotating table is provided with an accommodation groove. The interior of the accommodation groove is provided with a central telescoping device, and the top of the central telescoping device is hinged to a solar panel. The solar panel falls to be placed in the accommodation groove, and a side edge of the accommodation groove is provided with a side telescoping device. The upper end of the side telescoping device slidingly cooperates with the upper end of the solar panel, and therotating table is provided with a luminosity sensor and a wind power sensor; the solar panel is connected with a storage battery in the cabinet, and the storage battery is electrically connected withthe rotating table, the central telescoping device, the side telescoping device, the luminosity sensor and the wind power sensor. According to the technical scheme of the invention, the cabinet savesenergy, is high in reliability, is good in safety, and is durable.

The invention relates to a seal ring on a cover plate component, the cover plate component, an upper cover component and an electric appliance. The seal ring comprises an installation part and a sealing part which are integrally connected, the longitudinal cross-section of the installation part is shaped like an upside-down L, the installation part is installed on one side face of the cover platecomponent in a sealed mode, and the sealing part extends out of one side face of the cover plate component in the direction deviating from the cover plate component; when the cover plate component isbuckled on a cooking ware, the sealing part abuts against the edge of an opening of the cooing ware, and an elastic structure used for lowering the extrusion deformation stress of the sealing part isarranged on the side face, located outside the cooking ware, of the sealing part. Accordingly, the sealing part is arranged to be of a V-shaped structure, stiffener is arranged on the inner side of the bending part of the V-shaped structure, the elastic structure is arranged on the stiffener, the rigidity of the seal ring is enhanced, the extrusion deformation stress of the seal ring is lowered, and the seal ring is likely to recover after being extruded.

The invention discloses an assembly type bridge pier column structure, and the structure comprises a pier body assembly, a pier cap assembly and a pier abutment assembly, wherein the pier body assembly is installed above the pier abutment assembly, the pier cap assembly is installed above the pier body assembly, and fixed plates are installed on the outer side of the joint of the pier abutment assembly and the pier body assembly. The fixed plates are connected with the abutment assembly through nuts, and the fixed plates are connected through bolts. The invention relates to the technical fieldof bridge pier studs, in particular to a bridge pier stud supporting structure which supports pier caps through cooperation of pier body assemblies, enables supporting points of a bridge body to be located on the two sides of the bridge body, guarantees uniform stress on the two sides of the bridge body, avoids overturning of the bridge body, eliminates potential safety hazards of a single-columnpier stud and improves safety performance of the bridge pier stud. And the first pier body and the second pier body are connected through the connecting rod and the reed hoop, so the fixing stabilityof the first pier body and the second pier body is improved.

The invention provides a viaduct partition and water drainage combined device and a use method. The viaduct partition and water drainage combined device comprises a viaduct deck; a trapezoidal sectiongroove is formed in the middle position of the viaduct deck; the trapezoidal section groove is provided with a left inclined surface on the left side and is provided with a right inclined surface onthe right side; the width of the bottom plane of the trapezoidal section groove is smaller than that of a top opening of the trapezoidal section groove; the left inclined surface is connected with a left arc deck; the right inclined surface is connected with a right arc deck; a group of water drainage holes is formed in the bottom plane; water drainage pipes are inserted in the water drainage holes; four fixing rods with included angles of 90 degrees are welded around the circumferences of the water drainage pipes; the fixing rods are connected with front hooks and rear hooks; and the fixing rods, the front hooks and the rear hooks are all buried in the viaduct deck. The viaduct partition and water drainage combined device is used for partition and water drainage of viaducts

The invention discloses an intelligent lifting drying laundry rack. The laundry rack is characterized by comprising a support, clothes airing poles, rotating shafts, a lifting mechanism, a dryer and adrain pipe, the clothes airing poles are arranged on the two sides of the upper end of the support, provided with clamping grooves and connected with the support through the rotating shafts, a base is arranged at the bottom of the support, the lifting mechanism controls the laundry rack to rise and fall, and the dryer is installed on a wall and dries clothes on the clothes airing poles. By meansof the technical scheme, the laundry rack is simple in structure, convenient to use and small in occupied space, water accumulation on the ground is avoided in the clothes airing process, and convenience is brought to life of people.

A ceiling fan is used for solving the problem that accumulated water in an existing ceiling fan cannot be drained. The ceiling fan comprises: a stator which is provided with a winding assembly and a shaft rod; a rotor rotatably combined with the periphery of the shaft rod; a base combined with the stator; a drainage structure arranged on the base, wherein the drainage structure is provided with aninclined part and a drainage hole, and the drainage hole is communicated with the lowest position of the inclined part; and the plurality of fan blades arranged on the rotor.

The invention discloses a supercharger air inlet connecting pipe and an engine, and belongs to the technical field of automobiles. The supercharger air inlet connecting pipe comprises a first passagefor air circulation and a second passage, a first inlet for air inflow and a first outlet for air outflow are formed in the first passage, the first outlet is connected with a supercharger air inlet,and the inner diameter of the first outlet is the same as that of the turbocharger air inlet; and the second passage is used for the exhaust gas circulation in a crankcase, the second passage communicates with the supercharger, the second passage and the first passage are arranged at intervals, and an inclination angle alpha is arranged between the wall surface, close to the first passage, of thesecond passage and the horizontal direction, a third passage for the circulation of cooling water in the engine is arranged on the peripheral wall of the second passage, and the third passage is usedfor the peripheral wall walling of the second passage. The supercharger air inlet connecting pipe has the advantages of avoiding icing in the turbocharger air inlet connecting pipe, and has the characteristics of simple structure.

The invention relates to the technical field of water permeable bricks, in particular to a water permeable brick and a preparation method thereof. The water permeable brick comprises a base layer, a waterproof brick body frame is arranged on the base layer, the waterproof brick body frame is a five-face dense waterproof rectangular frame with an opening in the upper end, and an inwards-inclined inclined face is arranged at the upper end of the waterproof brick body frame; an inner cavity of the waterproof brick body frame forms a filling cavity, and a filling layer formed by pouring a water permeable filling material is arranged in the filling cavity; two horizontally-arranged communicating pipes are arranged between the waterproof brick body frame and the base layer, the communicating pipes are vertically arranged and communicate with each other, the upper ends of the communicating pipes penetrate through the bottom of the waterproof brick body frame and extend into the filling layer,and a plurality of overflow holes are formed in the tops of the communicating pipes at intervals along the axis. Rainwater and surface runoff are collected to avoid waterlogging, meanwhile, in hot days after rain, the stored water is evaporated, the pavement temperature is reduced, and therefore pavement sensible heat emission is reduced, and the urban heat island effect is reduced.

The invention relates to a waterproof structure, in particular to a waterproof structure for the roof of a building. The waterproof structure for the roof of the building comprises a roof deck, and further comprises overhanging type waterproof eaves erected on the upper periphery of the roof deck toward the ground, wherein the waterproof eaves are connected with the roof deck in the same plane together; a connected stereoscopic wall skirting is further arranged at the edge part of the waterproof eaves; a drainage ditch is arranged on the waterproof eaves circumferentially. By virtue of the overhanging waterproof eaves, the waterproof structure can avoid the drainage phenomenon that water on the existing flat roof shall be discharge downwards along the outer facade of the building. The water accumulated on the roof deck is introduced to the drainage ditch, so that through the separately designed drainage system to drain the water, the roof ponding phenomenon is avoided.

The invention relates to a seal ring on a cover plate component, the cover plate component, an upper cover component and an electric appliance. The seal ring comprises an installation part and a sealing part which are integrally connected, the longitudinal cross-section of the installation part is shaped like an upside-down L, the installation part is installed on one side face of the cover platecomponent in a sealed mode, and the sealing part extends out of one side face of the cover plate component in the direction deviating from the cover plate component; the sealing part is of a V-shapedstructure, and the end with the opening is integrally connected with the installation part; when the cover plate component is buckled on a cooking ware, the bent end of the sealing part abuts againstthe edge of an opening of the cooing ware; the opening of the sealing part of the V-shaped structure faces the outer side of the seal ring. Accordingly, by arranging the sealing part to be of the V-shaped structure, when the cover plate component is buckled on the cooking ware, extrusion deformation stress of the sealing part of the seal ring is lowered, that is to say, the seal ring is likely todeform, and the sealing effect is better; the opening of the sealing part of the V-shaped structure faces the outer side of the seal ring, and the sealing part is more likely to recover when the sealing part is not extruded.

The invention relates to anti-freezing water sprinkling equipment which comprises a main body, a water tank and four wheels and further comprises a water sprinkling mechanism and two anti-freezing mechanisms. The water sprinkling mechanism comprises a water sprinkling box, two driving assemblies and a plurality of nozzles. Each anti-freezing mechanism comprises a heating pipe, a power rod, a rack, two connecting blocks, two stirring assemblies, two third bearings and a plurality of heat conduction fins. According to the anti-freezing water spraying equipment, through the water spraying mechanism, the water spraying amount of a nozzle can be adjusted according to the vehicle speed, and the phenomenon that water is accumulated on the ground due to the too low vehicle speed is avoided; uneven watering caused by a too fast vehicle speed is also avoided; and through the anti-freezing mechanism, the purpose of heating clean water is achieved, the temperature of the clean water is increased, meanwhile, the clean water in the water tank is stirred, the clean water is in a flowing state, the anti-freezing purpose is achieved through two different forms, the anti-freezing effect is improved, the probability of a freezing phenomenon is reduced, and the influence on the watering work is avoided.

The invention relates to a seal ring on a cover plate component, the cover plate component, an upper cover component and an electric appliance. The seal ring comprises an installation part and a sealing part which are integrally connected, the longitudinal cross-section of the installation part is shaped like an upside-down L, the installation part is installed on one side face of the cover platecomponent in a sealed mode, and the sealing part extends out of one side face of the cover plate component in the direction deviating from the cover plate component; when the cover plate component isbuckled on a cooking ware, the sealing part abuts against the edge of an opening of the cooing ware, and stiffener is arranged on the side, located outside the cooking ware, of the sealing part. Accordingly, by arranging the attaching part of the seal ring and the edge of the opening of the cooking ware is arranged to be of the V-shaped structure, the stiffener is arranged on the inner side of thebending part of the V-shaped structure, and the rigidity of the whole body of the V-shaped structure is enhanced; when the cover plate component is buckled on the cooking ware, the seal ring is not likely to deform after being extruded, the sealing effect is better.

The invention discloses a multifunctional ground cleaning vehicle. The multifunctional ground cleaning vehicle comprises a vehicle body shell, a sewage tank, a water storage tank, a sweeping system and a water spraying system, wherein the sewage tank and the water storage tank are both arranged on the vehicle body shell, and the sweeping system and the water spraying system are both arranged below the vehicle body shell. The sweeping system comprises a box shell, a brush roller, a rubbish collecting box and a bottom shell. The box shell is arranged below the vehicle body shell and is provided with a hollow inner cavity, and an opening communicated with the hollow inner cavity is further formed in the bottom side of the box shell. The brush roller is arranged in the hollow inner cavity of the box shell in a rotating mode, and can move up and down relative to the vehicle body shell to be positioned together with the box shell. The rubbish collecting box is detachably connected to the box shell and is provided with a collecting opening, and a plurality of water filtering holes are further formed in the bottom side of the rubbish collecting box. The bottom shell is connected to the outside of the bottom side of the rubbish collecting box in a sealed mode, and the inside of the bottom shell is further communicated with the inside of the sewage tank. The ground cleaning vehicle enables watering, sweeping, rubbish collecting and sewage collecting to be effectively combined into a whole, and the overall cleaning work is simple and effective.

The invention relates to the related technical field of municipal engineering, and discloses an emergency anti-blocking drainage device applied to municipal inland inundation, the emergency anti-blocking drainage device comprises a cylinder body, the outer side of the cylinder body is fixedly provided with a mounting frame, the inner wall of the cylinder body is fixedly provided with a water filtering cover plate, and the inner wall of the cylinder body is provided with an inner cylinder fixedly installed through a connecting rod. According to the invention, the outer side of the surface of the cylinder body is provided with the dirt separation rod, so that water flow can be ejected out through the dirt separation rod in a rainfall process, garbage is firstly filtered through the dirt separation rod when flowing to the water filtering cover plate along with the water flow, and the phenomenon that the water filtering cover plate is directly blocked by the garbage to cause water accumulation is avoided; and after rainfall is finished, the sewage is automatically collected into the barrel body through the sewage isolating rod, so that the use of the water filtering cover plate is not influenced, and meanwhile, the garbage is remained near the barrel body and is convenient to clean, and finally, the purposes of pre-filtering the garbage to prevent blockage and conveniently cleaning the garbage are achieved.

The invention relates to the technical field of agricultural machinery, in particular to an agricultural planting fertilizing device which comprises a bottom frame, a drilling machine mounted at the upper end of the bottom frame and capable of sliding in the height direction of the bottom frame in a guiding mode, and water storage tanks mounted on the two sides of the bottom frame. The water storage tanks are used for storing liquid fertilizer, and the piston rods are arranged at the ends, facing the drill bits, of the water storage tanks and move up and down in the height direction of the water storage tanks. A scraping block at the lower end of the ground drilling machine is intermittently contacted with an abutting block when the ground drilling machine starts to drill holes, the ground drilling machine continuously moves downwards, a piston rod continuously moves downwards by utilizing friction force between the scraping block and the abutting block, and when the piston rod moves downwards, a piston plate connected with the piston rod can press the liquid level in a water storage tank downwards, so that the liquid level in the water storage tank is pressed downwards; and the water is sprayed on the two sides of the drill bit through the water spraying pipe, so that the ground soil is gradually fertilized while the ground is wetted.

The access control gate machine comprises a base, an air suction channel, an indicator lamp, an alarm lamp, a rain shelter, a lighting lamp, a second motor and a battery pack, a drainage channel is formed in the base, and a first machine box and a second machine box are fixed to the upper end face of the base; grooves are formed in the front end face of the first case and the front end face of the second case, the rain shelter is fixed to the base, a support is fixed to one side of the upper end face of the rain shelter, and a bearing table is fixed to the other side of the upper end face of the rain shelter through bolts. According to the access control gate machine with the temperature detection function, before people pass through the device, the infrared thermometer can detect the body temperature so as to judge whether the body temperature of the people is abnormal or not, when the body temperature of the people is abnormal, the gate is forbidden to be opened, the blocking effect is conveniently achieved, meanwhile, the alarm lamp is turned on, and the prompting effect is conveniently achieved; and the angle of the infrared thermometer can be adjusted before the infrared thermometer is installed.

The invention provides a floor drain type drainage device for an aluminum alloy ship. The device comprises a floor drain base plate having the bottom with a circular water falling box. With a cleaningmechanism, when water in the circular water falling box flows into a sewer pipe, a water wheel begins to rotate under the action of impact force of water and a second bevel gear at the rear end of adriving mechanism is driven to rotate; and then a transmission mechanism is driven to rotate, so that the cleaning mechanism rotates at the upper part of a filter screen; with the brush of the cleaning mechanism, hair distributed on the upper end surface of the filter screen is brought into a rectangular groove; meanwhile, a hair scraping column is matched and hair attached to the brush of the cleaning mechanism is removed and the removed hair falls into the rectangular groove, so that most space of the upper end face of the filter screen is not full of hair. Therefore, the drainage efficiencyof the floor drain type drainage device is improved, and a phenomenon that a large amount of water is accumulated on the ground of a bathroom when people wash hair is effectively avoided.

The invention discloses an automatic clothes hanger folding device, characterized by comprising a support, clothes airing bars, rotating shafts, clamping grooves, a base, a water storage groove, and a drain pipe. Two sides of the upper end of the support are provided with the clothes airing bars. The clothes airing bars are provided with the clamping grooves. The clothes airing bars and the support are connected through the rotating shafts. The bottom of the support is provided with the base. The central position of the base is provided with the water storage groove. The front end of the water storage groove is provided with the drain pipe. Using the above scheme, the device is simple in structure and convenient in use, and does not take space. The device prevents phenomenon that hydrops exists on ground in a clothes airing process, and provides convenience for life of people.

The invention discloses a plant water collecting device utilizing rainwater gravity pollution discharge for urban planning and a using method. The plant water collecting device comprises a main body,a floor drain, a water outlet device, a water storage device and an adjusting frame, wherein a second filter screen is arranged in the main body; a bottom plate is arranged below the second filter screen; a water outlet pipe is arranged below the second filter screen; an adjusting block is arranged in a sliding block; a connecting block is arranged above the outer end of a telescopic plate; the floor drain is arranged above the interior of the body; a first filter screen is arranged below a partition plate; a mounting groove is formed outside a mounting block; and waterproof glue is arranged on the outer side of the telescopic plate. According to the plant water collecting device utilizing rainwater gravity pollution discharge for urban planning and the using method, the mounting groove and the mounting block are arranged, and the filter screens can be quickly disassembled and assembled under the cooperative use of the mounting groove and the mounting block, so that the phenomenon thatthe filter screens cannot be treated when the filter screens are blocked can be prevented, and the portability of the device is improved.

A ceiling fan is used for solving the problem that accumulated water in an existing ceiling fan cannot be drained. The ceiling fan comprises: a stator which is provided with a winding assembly and a shaft rod; a rotor rotatably combined with the periphery of the shaft rod; a base combined with the stator; a drainage structure arranged on the base, wherein the drainage structure is provided with aninclined part and a drainage hole, and the drainage hole is communicated with the lowest position of the inclined part; and the plurality of fan blades arranged on the rotor.

The invention relates to a roof drainage device, in particular to an impurity and water separating device special for roof drainage. The impurity and water separating device special for roof drainage is convenient to install and maintain, impurities and water on a roof are separated, the phenomenon that water discharging pipe is blocked is avoided, and troubles in life of people are reduced. The impurity and water separating device special for roof drainage comprises a pipe body, a flow guiding plate, a first bearing seat, a first rotary shaft, a second bearing seat, a first net plate, an impurity discharging pipeline, a clamping unit, a collecting tube, a backflow connector and the like. The pipe body is a hollow cylinder, and the flow guiding plate is obliquely installed on the left side of the top in the pipe body. According to the impurity and water separating device special for roof drainage, the effects that installation and maintenance are convenient, drainage operation can be well conducted on the roof, roof water collecting is avoided, and the troubles in the life of the people are reduced are achieved.

The invention discloses an electromagnetic pressure protection water discharge valve used for high-speed multiple units. The valve is connected between a water discharge inlet and a water discharge outlet, and comprises a valve body and a valve, wherein a water discharge passage is formed in the valve body; the valve is movably arranged in the water discharge passage; the valve body is provided with an electromagnetic valve; and the valve is arranged on the electromagnetic valve and is opened and closed through the action of an armature of the electromagnetic valve. Due to the adoption of the electromagnetic valve, the water discharge valve is opened and closed through the action of the electromagnetic valve, so that water is not required to be discharged by squeezing by using the gravity of the water to prevent the phenomenon of water logging due to incapable discharge of a small amount of water when the water is available, and the valve is not required to be sealed through air pressure to overcome the defect of difficulty in sealing of the valve in the presence of insufficient air pressure when the water is not available, and the valve is not influenced by vibration produced during running of a train to prevent water leakage and air leakage phenomena caused by the vibration; and the valve fills the blank in the technology of the pressure protection water discharge valve of a domestic high speed train of China and has great practical value for the domestication of the China high-speed multiple units.

The invention relates to a seal ring on a cover plate component, the cover plate component, an upper cover component and an electric appliance. The seal ring comprises an installation part and a sealing part which are integrally connected, the longitudinal cross-section of the installation part is shaped like an upside-down L, the installation part is installed on one side face of the cover platecomponent in a sealed mode, and the sealing part extends out of one side face of the cover plate component in the direction deviating from the cover plate component; when the cover plate component isbuckled on a cooking ware, the sealing part abuts against the edge of an opening of the cooing ware, the side face, located in the cooking ware, of the sealing part is the water diversion cambered surface, and the end, far away from the cover plate component, of the water diversion cambered surface is located under or on the outer side of the end close to the cover plate component. Accordingly, when the arranged sealing part abuts against the edge of the opening of the cooking ware, the side face, located in the cooking ware, of the sealing part is the water diversion cambered surface, condensate water can slip down from the seal ring, the seal ring keeps an anhydrous state, and the phenomenon that in the cooking process, due to the fact that steam condenses, water is accumulated in the cover plate component can be avoided; soup or rice grains splashed on the water diversion cambered surface are convenient to clean away.

The invention discloses an electric power cabinet convenient for discharging accumulated water, the electric power cabinet comprises a drainage base and a cabinet body, the cabinet body is slidably connected in the drainage base, a mounting plate is fixedly mounted on the inner wall of the cabinet body, a transverse shaft is transversely and rotatably connected to the side wall in the cabinet body, and two second helical gears are symmetrically and fixedly connected to the transverse shaft. The lower end of each second bevel gear is connected with a first bevel gear in a meshed mode, a rotating shaft is fixedly installed in the center of the lower end of each first bevel gear, the lower end of each rotating shaft is rotatably connected to the side wall of the bottom end in the cabinet body, and two first sealing cavities are symmetrically formed in the side wall of the bottom end in the cabinet body. According to the invention, the drying degree in the cabinet body is improved, the phenomenon of water accumulation in the cabinet body is avoided, the short circuit phenomenon of the circuit wiring board in the cabinet body is further avoided, the influence on the power utilization communication of residents in a community is avoided, and the service life of the cabinet body is prolonged.