47results about How to "To achieve the purpose of deicing" patented technology

The invention provides a high voltage transmission line press-bending deicing method and a device, the method comprises the following steps: 1, a running gear hanging over a high voltage transmission line is arranged on two ends of a rack; 2, a liftable ice breaking wheel is arranged on the middle of the rack, and the wheel is arranged below the high voltage transmission line; 3, a press-bending height is set according to the conductor type and the icing layer thickness of the high voltage transmission line; 4, the ice breaking wheel is made to lift and press the high voltage transmission line to bend until the press-bending height in static way; according to the above steps, the icing layer of the high voltage transmission line is removed through the press-bending way. According to the invention, the crisp characteristic of icing layer is utilized, deicing is performed through the static force bending way, the structure is relatively simple, the energy consumption is low, the deicing effect is stable, and the damage of the high voltage transmission line will not happened in deicing process.

The invention discloses a self-heating deicing system of high-tension transmission lines. The self-heating deicing system is characterized in that the system comprises a high-tension transmission cable and a deicing power module; a transmission cable core and a heating cable core are arranged inside the high-tension transmission cable; the heating cable core is connected with two ends of the transmission cable core through pup joint equalizers; the deicing power module adopts an external direct current power source or a power module directly led out from a high-tension transmission line; and the deicing power module is connected with the transmission cable core and the heating cable core inside the high-tension transmission cable and the pup joint equalizers through a change-over switch to form a heating circuit in the high-tension transmission cable. The self-heating deicing system can realize the deicing operation to the high-tension transmission cable in ice coating sections by building the self-heating deicing circuit in the high-tension transmission cable under the condition of uninterruptible power supply; and moreover, the self-heating deicing system can be matched with the existing high-tension transmission power monitoring system to realize the sectionalized and time-shared deicing to ice coating lines in an automation control manner according to the ice coating situation of lines.

The invention belongs to the technical field of high voltage power operation, and especially relates to a deicing mechanism on a single high voltage power line. The deicing mechanism comprises the high voltage power line, a deicing element, a front board, an upward floating Geneva wheel, an initiative flexible Geneva wheel, an electric motor, a rotation Geneva wheel, a downward floating Geneva wheel and a base. The deicing element is mounted on the front board. The high voltage power line penetrates the deicing element. The electric motor drives the deicing element to carry out rotation movement, and therefore, the unfrozen water or ice on the high voltage power line can be thrown away from the high voltage power line, thereby realizing a deicing purpose. Through design of the four Geneva wheels, it can be ensured that the device can operate stably on the high voltage power line. The energy source used by the deicing mechanism is solar energy. The solar energy is stored in charging batteries in sunny days. When bad weather appears, the energy can be supplemented by the charging batteries for a relatively long time, thereby carrying out deicing service. The designed structure provided by the invention is relatively high in integration degree and has certain modular design concepts and certain practical effects.

The invention relates to the technical field of electric power, and discloses a cable deicing device, which comprises a rotating sleeve, wherein a deicing mechanism used for deicing is arranged in the rotating sleeve, a rotating mechanism used for rotating is arranged on the rotating sleeve, the deicing mechanism comprises a deicing sleeve, fixing sleeves, a scraper and an elastic piece, the deicing sleeve is sleeved in the rotating sleeve, the rotating sleeve and the deicing sleeve are coaxially arranged, the fixing sleeves are fixedly installed on the outer wall of the deicing sleeve, transverse grooves are formed in the side walls of the fixing sleeves, the fixing sleeves are evenly distributed on the outer wall of the deicing sleeve, and the transverse grooves penetrate through the two sides of the fixing sleeves. According to the invention, the purpose of deicing is achieved through the deicing mechanism so as to effectively fall off a just-formed ice layer, then the deicing device rotates in a reciprocating mode through the rotating mechanism so as to achieve the purpose of deicing back and forth, and the blades are effectively prevented from being frozen.

The invention discloses a power distribution network line deicing device with an ice crushing mechanism in the technical field of power distribution network line operation and maintenance. The power distribution network line deicing device comprises a mounting plate; the mounting plate is sequentially provided with a stabilizer, an ice crushing mechanism, two ice removing mechanisms which are mounted oppositely, a deicing mechanism and a stabilizer from right to left; a cable penetrates through the stabilizers, the ice crushing mechanism, the ice removing mechanisms and the deicing mechanism;and the stabilizers are arranged on the left side and the right side of the top end of the mounting plate. A stabilizer bottom plate is fixedly welded at the bottom ends of the stabilizers; the stabilizer bottom plate is fixedly connected with the top end of the mounting plate through bolts; a deicing mechanism bottom plate is fixedly welded at the bottom end of the deicing mechanism; and the bottom plate of the deicing mechanism is fixedly connected with the top end of the mounting plate by bolts. The deicing device is simple in structure, reasonable in design, capable of automatically cleaning ice covering a cable, capable of deicing through the multiple deicing mechanisms, high in deicing effect and efficiency, convenient to use, long in service life and safe in work.

The invention belongs to the technical field of high voltage power operation, and especially relates to an anti-icing device employed on high voltage power lines. The device comprises a first walk performing mechanism, a first connection mechanism, an energy harvesting mechanism, a second connection mechanism, a second walk performing mechanism and a charging battery. The first walk performing mechanism and the second walk performing mechanism are arranged on the high voltage power lines and can move actively. The two walk performing mechanisms are connected with the energy harvesting mechanism by the connection mechanisms. The energy harvesting mechanism can harvest wind-driven swing energy of the high voltage power lines and convert the energy into electric quantity in the charging battery. The device designed by the invention is applicable to operation on the fixed segments of the high voltage power lines between telegraph poles. The designed walk performing mechanisms and the energy harvesting mechanism are modular design and can be combined freely according to the number of the high voltage power lines, and the use is convenient. Moreover, according to the device, the high voltage power lines can be spaced. The device has relatively high practicability.

The invention discloses a pull-type high voltage cable deicing hammer and relates to a cable deicing device. One end of a sheave shaft of a front sheave (21) and one end of a sheave shaft of a rear sheave (1) are connected to one sides of the upper ends of two board bodies of a board shaped like an inverted right-angled h, one end of a hammer handle (15) is connected with one side of the board body at the lower end of the board through a hammer handle positioning shaft, a spring positioning rod (19) is fixed on the front corner of the board, the two ends of a spring (17) are connected with the middle of the spring positioning rod and the hammer handle respectively, the other end of the hammer handle is provided with a hammer body (13), semicircular grooves (14) are formed in the upper face of the hammer body at intervals, and the upper end of a hauling cable (23) is connected with the middle of the hammer handle. The pull-type high voltage cable deicing hammer walks on a high voltage cable through the front sheave and the rear sheave, a person under a pole pulls the hauling cable with a hand to remove ice on the high voltage cable, and the purpose of rapid deicing is achieved.

The invention relates to the field of deicing machinery, in particular to an application shovel wheel of a deicing device. The application shovel wheel comprises a driving device, a frame wheel and a plurality of ice hammers. The driving device is connected with the frame wheel and can drive the frame wheel to rotate; the multiple ice hammers are uniformly arranged in the peripheral direction of the frame wheel around the axis of the frame wheel; the ice hammers comprise connecting handles and hammerheads; one end of each connecting handle is rotationally connected with the frame wheel; the other ends of the connecting handles are fixedly connected with the hammerheads; tips are arranged at two ends of each hammerhead; the middles of the hammerheads are connected with the connecting handles. The application shovel wheel has the advantages that perpendicular impact on road surfaces and damage to the road surfaces can be prevented, the purpose of deicing the road surfaces can be achieved, and the safety of the road surfaces can be effectively guaranteed.

The invention provides an engine air inlet ice removing system. The engine air inlet ice removing system comprises a filtering cover allowing air to enter an air inlet of an engine; the inherent frequency of the filtering cover is greater than or equal to the vibration frequency of the engine during idling of the engine, and is less than or equal to 150% of the vibration frequency of the engine atthe 100% rotating speed of the engine. The engine air inlet ice removing system is provided the filtering cover allowing the air to enter the air inlet of the engine; the inherent frequency of the filtering cover is greater than or equal to the vibration frequency of the engine during idling of the engine, and is less than or equal to 150% of the vibration frequency of the engine at the 100% rotating speed of the engine. When the filtering cover is icy, the filtering cover resonates with the engine, the amplitude of the filtering cover increases during resonating, so that an ice layer on thefiltering is vibrated to fall off to achieve the purpose of ice removing, and gross efficiency of the engine is not decreased.

The invention provides a piezoelectric patch excitation and Lamb wave combined shear stress deicing mode-based optimal selection method, which comprises the following steps of: selecting a piezoelectric patch as a driver, analyzing the influence of the excitation frequency of the piezoelectric patch on shear stress between ice layer interfaces of an input aluminum plate, and selecting a Lamb wavedeicing mode to be selected and a frequency response curve of strain on the upper surface of the aluminum plate; and finally, piezoelectric patch excitation and Lamb wave combined shear stress deicingmode optimization is completed. Under the condition of given power, the maximum deicing shear stress possibly obtained under the given power is excited, so that the adhesion shear stress between iceand a substrate is overcome, and finally the deicing purpose is achieved. The deicing device has the advantages of low power consumption, low cost, light weight, high reliability and the like, has a wide application prospect, and is particularly suitable for deicing aircraft wing parts.

The invention discloses an unmanned aerial vehicle and a wing deicing device thereof. The wing deicing device comprises a deicing sleeve, at least one nitrogen cylinder and a reversing valve, the deicing sleeve sleeves the tail part of a wing, the nitrogen cylinder is communicated with the deicing sleeve through a gas delivery pipe, the reversing valve is arranged on the gas delivery pipe, and the reversing valve is provided with an exhaust port. When the reversing valve is located at a first position, the nitrogen cylinder is communicated with the deicing sleeve, nitrogen is continuously filled into the deicing sleeve through the nitrogen cylinder, an ice layer at the tail of the wing is removed through the nitrogen, and the deicing purpose is achieved; and when the reversing valve is located at a second position, the nitrogen cylinder is disconnected from the deicing sleeve, the deicing sleeve is communicated with the exhaust port, and nitrogen in the deicing sleeve is exhausted from the exhaust port, so that the nitrogen is prevented from influencing flying of the wings. The deicing sleeve is alternately inflated and deflated through the reversing valve, the tail of the wing is deiced according to needs, it is avoided that an ice layer on the tail of the wing influences safe flight of the wing, and the flight safety is improved.

The invention relates to microwave-absorbing wind power blade coating as well as a preparation method and application thereof. The microwave-absorbing wind power blade coating comprises the following components in parts by weight: 70-99.9 parts of traditional blade coating and 0.1-30 parts of a carbon series microwave absorbing material. The preparation method of the microwave-absorbing wind power blade coating comprises the following steps: uniformly mixing 70-99.9 parts of the traditional blade coating and 0.1-30 parts of a carbon series microwave absorbing material; coating the obtained mixture onto a blade by adopting the traditional coating method. Compared with the prior art, the microwave absorbing wind power blade coating has anti-icing and deicing effects and can effectively reduce radar reflection.

A road surface deicing device is characterized by comprising a deicing blade 1, a damping spring2, a locating rod 3, a connecting rod 4, a crankshaft connecting rod 5, a power device 6 and a support 7. The deicing blade 1 is connected with the connecting rod 4 together through the locating rod 3 and the damping spring 2. The crankshaft connecting rod 5 is connected with the power device 6. Due to the fact that ice has the feature of being easy to break, a crankshaft drives the deicing blade to move up and down, and therefore the deicing purpose is achieved.

The invention discloses an aerofoil leading edge deicing device for an unmanned aerial vehicle, which comprises a servo steering engine, a pushing mechanism and an ice pushing strip, wherein the pushing mechanism pushes the ice pushing strip under the drive of the servo steering engine; the ice pushing strip is protruded out of the skin surface of an aerofoil of the unmanned aerial vehicle after being jacked up for carrying out deicing work; the pushing mechanism comprises a steering engine rocking arm and a steering engine connecting rod; the steering engine rocking arm is fixed on an outputshaft of the servo steering engine and can do circular motion by adopting the output shaft as a circle center; one end of the steering engine connecting rod is connected to the steering engine rocking arm, and the other end is connected with the ice pushing strip; and the steering engine rocking arm, the steering engine connecting rod and the ice pushing strip form a crank rocker mechanism, and the steering engine connecting rod drives the ice pushing strip for realizing jacking up and retracting motions. The aerofoil leading edge deicing device for an unmanned aerial vehicle has simple structure, low cost, safety, reliability, convenient operation and recycling.

The invention discloses a water film cavitation and deicing fluid combined anti-icing fairing. The anti-icing fairing involves a fairing skin, a heating part, a cavitation bubble generation layer, a deicing fluid flow channel cover, a deicing fluid nozzle and a disc assembly; the heating part is positioned on the inner side of the fairing skin; the cavitation bubble generation layer is positionedon the outer side of the fairing skin; the deicing fluid flow channel cover is located on the inner side of the heating part and is provided with a deicing fluid flow channel cavity; the deicing fluidnozzle is connected with the deicing fluid channel cover, an outlet of the deicing fluid nozzle penetrates through the fairing skin, and the deicing fluid sprayed out of the deicing fluid nozzle canform the cavitation bubble generation layer on the outer side of the fairing skin; and the periphery of the disc assembly is connected with the fairing skin, the heating part and the deicing fluid channel cover so as to form a cavity for storing the deicing fluid. According to the water film cavitation and deicing fluid combined anti-icing fairing, the heated deicing fluid and the released hydraulic cavitation energy are applied to the fairing anti-icing technology, and therefore the heat energy of the deicing fluid, the heat energy released by the hydraulic cavitation and the impact vibrationenergy can be comprehensively utilized to achieve the anti-icing purpose of the fairing.

The invention relates to the technical field of mobile communication cables, and discloses an intelligent manufacturing mobile communication cable deicing device which comprises a device body, a cablebody is arranged in the device body, a device inner cavity is fixedly installed in the device body, and a heater is fixedly installed in the device body. A driving block is fixedly installed in the device body, a driving rod is fixedly connected to the outer side of the driving block, and a salt outlet spray head is fixedly installed on the outer side of the bearing shaft block. According to theintelligent manufacturing mobile communication cable deicing device, a driving device in the device body is started, a driving block immediately drives a driving rod to rotate, a bearing shaft block connected to the top end of a rod body of the driving rod immediately rotates, then a salt outlet spray head connected to the outer side of the bearing shaft block is driven to synchronously rotate, and then the salt outlet spray head spreads industrial salt; and the industrial salt is uniformly sprayed to the surface of the cable body to melt ice slag, and meanwhile, the cable body is prevented from icing again due to low temperature.

In order to overcome the defects existing in a conventional deicing technique for airplanes, the invention provides a peelable thin-film type deicing method for the airplanes. The peelable thin-film type deicing method comprises the following step of pasting and covering a layer or layers of thin films which can be peeled due to reduced viscidity after being electrically heated, at positions wherein icing is easy to occur on a shell of an airplane, wherein the thin films along with icing on the thin films can be peeled together, so that the effect of deicing is achieved. The thin films are designed into being spliced, an impression or a cutting line, which is easy to tear, can also be arranged on a large thin film, and viscose of which the viscidity is easy to reduce after being heated is selected as glue for pasting and covering the thin films. Electric heating layers are arranged between the thin films and an airplane body and between the thin films, and are electrically connected with a heating power supply. When a temperature sensor or an inductor induces that ice is formed on the airplane, the heating power supply is switched on, the heating layers are uniformly heated, and the heated heating layers conduct heat to the glue of the thin films, so that the viscidity of the glue is reduced, and the thin films are torn along grid lines and are peeled off along with icing layers on the thin films; and therefore, the purpose of deicing for the airplanes is achieved.

The invention discloses a water film cavitation and deicing liquid combined anti-deicing fairing, which comprises a fairing skin; a heating part, which is located inside the fairing skin; and a cavitation bubble generation layer, which is located in the fairing skin The outer side of the deicing fluid channel cover, which is located on the inner side of the heating part, has a deicing fluid channel cavity; the deicing fluid nozzle is connected with the deicing fluid channel cover, and the outlet of the deicing fluid nozzle passes through the rectifier Cowl skin, the deicing fluid sprayed from the deicing fluid nozzle can form a cavitation bubble generation layer on the outer side of the cowling skin; the disc-shaped part, whose peripheral edge is connected to the cowling skin, the heating part and the deicing fluid flow Road cover to form a cavity for storing de-icing fluid. The invention releases the heated deicing fluid and hydraulic cavitation energy and applies it to the anti-icing technology of the fairing, and comprehensively utilizes the heat energy of the deicing fluid, the thermal energy released by the hydraulic cavitation and the impact vibration energy to achieve the anti-icing purpose of the fairing.

The invention discloses a wing deicing device and a wing including the deicing device. The device is installed inside the wing and includes a base body, a magnetic vibrator, an elastic membrane, a wing skin and screws; the magnetic vibration The vibrator is composed of a coil frame, a vibrator shell, a magnetostrictive rod, an actuator rod, a coil and a disc spring; the base body is fixed inside the wing, and the magnetic vibrator is installed between the skin and the base body through the coil frame perpendicular to the base body to form a In the inner cavity of the vibrator shell, a coil skeleton and a magnetostrictive rod are installed inside the vibrator shell, and the coil is wound outside the coil skeleton. The shell of the vibrator is connected by screws, and the skin of the wing is also connected with the shell of the vibrator by screws. The invention utilizes the continuous deformation produced by the supermagnetic material in the changing magnetic field to clear the ice accumulation on the wing, has high efficiency, less energy consumption, and does not destroy the aerodynamic shape of the wing or damage the skin of the wing.

The invention belongs to the technical field of high-voltage operations and in particular to a wire-drawing power generation anti-icer for a high-voltage wire. The wire-drawing power generation anti-icer for the high-voltage wire comprises a first walk executing mechanism, a first connecting mechanism, an energy collecting mechanism, a second connecting mechanism, a second walk executing mechanism and a charging battery, wherein the first walk executing mechanism and the second walk executing mechanism can move actively on the high voltage wire; the two walk executing mechanisms are connected to the energy collecting mechanism through the connecting mechanisms. The energy collecting mechanism can collect fan pendulum energy of the high voltage wire and then converts the fan pendulum energy into the electric quantity in the charging battery. The equipment designed by the invention is suitable for operations on fixed high voltage wires among electric poles. The designed walk executing mechanism and the energy collecting mechanism are of modular designs and can be freely combined according to the quantity of the high voltage wires, so that the anti-icer is quite convenient; in addition, the anti-icer also plays a spacing role on the high voltage wires and has relatively high practicality.

The invention discloses a deicing device for a power transmission line. The deicing device comprises a main frame body. The main frame body comprises a first longitudinal beam, a second longitudinal beam and a third longitudinal beam. The first longitudinal beam and the second longitudinal beam are respectively provided with hook units. Each hook unit comprises a first hook assembly and a second hook assembly, wherein the first hook assembly and the second hook assembly can slide back and forth along the first longitudinal beam. The first hook assembly and the second hook assembly are opposite to each other. A power unit is arranged between the first longitudinal beam and the second longitudinal beam, and between the second longitudinal beam and the third longitudinal beam, respectively. The power unit can drive a third roller to walk along the power transmission line. A U-shaped fixing frame is arranged on the second longitudinal beam. A tensioning unit is arranged on the U-shaped fixing frame. The power transmission line can be bent at the fourth roller of the tensioning unit through the tensioning unit. According to the device, the characteristics that the ice is brittle and hard can be utilized. An ice layer on the surface of the power transmission line is broken through the local bending of the power transmission line. Therefore, the insulation layer of the power transmission line is prevented from being damaged.

The invention provides an optimal pavement deicing machine. The machine includes a base plate with rolling wheels, a diesel engine arranged on the base plate, a handle bar arranged on the end portionof the base plate, left and right supporting bases arranged on the base plate, a transmission shaft arranged between the left supporting base and the right supporting base, a linking rod mechanism andan ice cutter; the two ends of the transmission shaft are provided with a left flywheel and a right flywheel respectively, the left flywheel and the right flywheel are provided with a left triangularrack and a right triangular rack respectively, the left triangular rack is fixedly provided with a first belt pulley, the output end of the diesel engine is provided with a second belt pulley, and abelt is installed between the first belt pulley and the second belt pulley; a protrusion is arranged on the right triangular rack and hinged to one end of the linking rod mechanism, the ice cutter ishinged to the other end of the linking rod mechanism, and the upper end of the ice cutter is communicated with a tail gas spraying port of the diesel engine through a soft exhaust pipe. The optimal pavement deicing machine is compact in structure and capable of effectively utilizing the temperature of waste gas of the diesel engine to soften an ice surface and bake the pavement where ice is removed, the efficiency of deicing work is improved, and energy sources are saved, so that the optimal pavement deicing machine has a wide application prospect.

The invention belongs to the technical field of high voltage power operation, and especially relates to an anti-icing device employed on high voltage power lines. The device comprises a first walk performing mechanism, a first connection mechanism, an energy harvesting mechanism, a second connection mechanism, a second walk performing mechanism and a charging battery. The first walk performing mechanism and the second walk performing mechanism are arranged on the high voltage power lines and can move actively. The two walk performing mechanisms are connected with the energy harvesting mechanism by the connection mechanisms. The energy harvesting mechanism can harvest wind-driven swing energy of the high voltage power lines and convert the energy into electric quantity in the charging battery. The device designed by the invention is applicable to operation on the fixed segments of the high voltage power lines between telegraph poles. The designed walk performing mechanisms and the energy harvesting mechanism are modular design and can be combined freely according to the number of the high voltage power lines, and the use is convenient. Moreover, according to the device, the high voltage power lines can be spaced. The device has relatively high practicability.

The invention discloses an aerofoil leading edge deicing device for an unmanned aerial vehicle, which comprises a servo steering engine, a pushing mechanism and an ice pushing strip, wherein the pushing mechanism pushes the ice pushing strip under the drive of the servo steering engine; the ice pushing strip is protruded out of the skin surface of an aerofoil of the unmanned aerial vehicle after being jacked up for carrying out deicing work; the pushing mechanism comprises a steering engine rocking arm and a steering engine connecting rod; the steering engine rocking arm is fixed on an output shaft of the servo steering engine and can do circular motion by adopting the output shaft as a circle center; one end of the steering engine connecting rod is connected to the steering engine rocking arm, and the other end is connected with the ice pushing strip; and the steering engine rocking arm, the steering engine connecting rod and the ice pushing strip form a crank rocker mechanism, and the steering engine connecting rod drives the ice pushing strip for realizing jacking up and retracting motions. The aerofoil leading edge deicing device for an unmanned aerial vehicle has simple structure, low cost, safety, reliability, convenient operation and recycling.

The invention relates to the technical field of power cables, and discloses a cable deicing device capable of improving the deicing effect. Rotary bearing, the upper part of the rotating bearing is movably connected with a connecting bush, the upper part of the connecting bush is movably connected with a movable block, the outer side of the vibrating ring is connected with a vibrating rod, and the opposite side of the threaded rod is provided with a salt outlet. The outer side of the salt outlet is movably connected with a salt outlet pipeline, the inner side of the salt outlet pipeline is movably connected with a salt bin, and a buffer spring is lapped under the salt bin. The cable deicing equipment that can improve the deicing effect, by starting the built-in driving device, the threaded rod starts to rotate, and the movable block threaded on it starts to move under the rotation of the threaded rod, driving the deicing clips connected below it The interface card catches the cable, and scrapes off the ice residue on the cable through the deicing blade provided on the deicing clamp.

The present invention provides an optimal method based on piezoelectric sheet excitation and Lamb wave combined shear stress deicing mode, selects piezoelectric sheet as the driver, and analyzes the impact of piezoelectric sheet excitation frequency on the shear stress between the input aluminum plate-ice layer interface Influence, combined with the frequency response curve of the selected modal of Lamb wave deicing and the strain on the surface of the aluminum plate, finally complete the optimization of the combined shear stress deicing mode of piezoelectric plate excitation and Lamb wave; the present invention aims to give In the case of constant power, the maximum deicing shear stress that may be obtained under the given power is stimulated to overcome the adhesive shear stress between the ice and the substrate, and finally achieve the purpose of deicing; the present invention has low power consumption, low cost It has the advantages of low weight, light weight and high reliability, and has broad application prospects, especially for deicing aircraft wing components.

The invention discloses a power wire and cable deicer. The power wire and cable deicer includes a cable; the cable is provided with a first machine body and a second machine body; the first machine body is correspondingly connected with the second machine body through a first connection shaft; each of the first machine body and the second machine body is provided with a semi-circular deicing groove; a row of connecting ice blades corresponding to a corresponding deicing groove is arranged in the deicing groove; two ends of each connecting ice blade are respectively connected with two deicing blade disc which are corresponding to each other; the deicing blade discs are semicircular and are corresponding to the cable; and in the rotation process of driving wheels, the deicing blade discs can be driven to rotate in a reciprocating manner in the deicing grooves, so that ice blocks on the cable can be cut and rubbed in the reciprocating rotation process of the deicing blade discs, and therefore, deicing can be realized, and cable fracture caused by the accumulation of a large number of ice blocks on the cable can be prevented.

The invention belongs to the technical field of display devices and particularly relates to an environment-friendly display stand for electric vehicle selling. The display stand comprises a base, wherein a supporting column is fixedly connected to the middle of the base; an umbrella is fixedly connected to an upper end of the supporting column; a motor is mounted in the base; an output shaft of the motor is fixedly connected with a gear; the outer side of the supporting column is sleeved with a combination sleeve; a gear ring is fixedly connected to the outer side of the combination sleeve, and the gear ring is meshed with the gear; an end, extending out of the base, of the combination sleeve is fixedly connected with a scraping rod; a brush is fixedly connected to the lower side of the scraping rod and tightly attached to an upper surface of the base. Before an electric vehicle is placed, a motor can be started to drive a gear to rotate, then the gear drives a combination sleeve to rotate through a gear ring, a scraping rod does circular motion on the upper surface of a base, then friction is generated between a brush and the base, an ice layer is removed, and a problem that when the electric vehicle is placed on the base, a worker or the electric vehicle slips is avoided; and unnecessary loss is reduced.

The invention provides an engine air inlet ice removing system. The engine air inlet ice removing system comprises a filtering cover allowing air to enter an air inlet of an engine; the inherent frequency of the filtering cover is greater than or equal to the vibration frequency of the engine during idling of the engine, and is less than or equal to 150% of the vibration frequency of the engine atthe 100% rotating speed of the engine. The engine air inlet ice removing system is provided the filtering cover allowing the air to enter the air inlet of the engine; the inherent frequency of the filtering cover is greater than or equal to the vibration frequency of the engine during idling of the engine, and is less than or equal to 150% of the vibration frequency of the engine at the 100% rotating speed of the engine. When the filtering cover is icy, the filtering cover resonates with the engine, the amplitude of the filtering cover increases during resonating, so that an ice layer on thefiltering is vibrated to fall off to achieve the purpose of ice removing, and gross efficiency of the engine is not decreased.