67results about How to "Improve ice breaking effect" patented technology

The present invention discloses an offshore large-diameter pile foundation with an ice-resistant structure. The offshore large-diameter pile foundation with the ice-resistant structure comprises a plurality of ice-resistant standard parts that are welded in a circle symmetrically and uniformly around the pile foundation made of steel. A primary stiffened plate and upper and lower secondary stiffened plates are arranged through the plurality of ice-resistant standard parts. The plurality of ice-resistant standard parts, the primary stiffened plate, and the upper and lower secondary stiffened plates are connected and fixed to form the ice-resistant structure. The ice-resistant standard parts provided by the present invention are each provided with icebreaking blades, such that concentrated stress is produced on sea ice, and the sea ice thus is easy to break; the icebreaking blades are each in an inwardly recessed arc shape, which is also conducive to breaking sea ice; ice blocking lugs force sea ice to turn over and fall off, and prevent the sea ice from contacting with the pile foundation; moreover, the ice-resistant standard parts are distributed axisymmetrically around the pile foundation, and can resist the effect of sea ice in any direction.

The invention belongs to the field of ice-breaking ships, in particular to an adaptive ice-breaking device for ships. The device comprises a base, a reserve box, a crankshaft, an electric motor, a controller, a conveyor belt, a speed reducer, an electromagnetic clutch, a connecting rod, a slider vibration exciting rod, small and large electromagnets, a return spring, a stop pin, an electric motorcontroller and the like; One end of the crankshaft is connected with the output shaft of the speed reducer through an electromagnetic clutch to transmit torque, and the other end is connected with theconnecting rod through a rotating pair; The slider vibration exciting rod and the connecting rod are connected through a ball hinge, and the slider vibration exciting rod and the slider rail are connected through a ball to realize the guidance and reduce the friction; The slide rail has four arc-shaped grooves, the ball is located in the arc-shaped groove, and the slide rail is fixed on the base.The controller selects the rotational speed of the motor according to the natural frequency fn of the sea ice, so that the frequency f1 of the exciting force exerted by the vibration hammer on the ice is equal to the natural frequency fn of the ice, so as to realize the resonant ice breaking. The invention is based on the resonance principle, and has the advantages of low cost-effectiveness ratio, strong adaptability and high ice breaking efficiency.

The invention relates to a pneumatic impacting type ice crusher. Supporting wheels, an ice removing shovel and an impacting cylinder are arranged at the bottom of a machine frame, wherein exhaust holes are arranged in an impacting cylinder body; an upper end cover and a lower end cover are respectively arranged at two ends of the impacting cylinder body; an air inlet is arranged in the upper end cover, and communicated with the internal chamber of the impacting cylinder body; a powerful magnet under which a piston is arranged is arranged on the internal end face of the upper end cover; a punch connecting rod internally provided with a punch is arranged below the piston through a spring; and the punch connecting rod is sleeved in a guide hole in the lower end cover of the impacting cylinder body. The pneumatic impacting type ice crusher has a good ice crushing effect, and high ice crushing efficiency, and is reliable in work, simple and easy to arrange, and can be quickly and additionally arranged to the current engineering truck; and after being started, the pneumatic impacting type ice crusher can clear a rescuing road within a day and a night at speed of 10 km / h. The pneumatic impacting type ice crusher is practical and reliable, and has the good ice crushing effect and high ice crushing efficiency, and can be relatively suitable for crushing the ice on a pavement at a site with ice damage.

The invention provides an ice-breaking and wave-eliminating composite device for an offshore wind power pile-type foundation. The ice-breaking and wave-eliminating composite device is installed on a vertical steel pipe pile, and an upper annular plate and a lower annular plate are arranged on the outer wall of the steel pipe pile in the circumferential direction. The ice-breaking and wave-eliminating composite device comprises an ice-breaking cone, a plurality of ice-breaking blades and a sleeve, the ice-breaking cone is in an annular shape, a plurality of wave-eliminating holes are formed inthe ice-breaking blades , all the ice-breaking blades are vertically fixed to the ice-breaking cone at intervals, the ice-breaking cone sleeves the outer wall of the sleeve, the sleeve sleeves the outer side of the steel pipe pile, and is located between the upper annular plate and the lower annular plate and slidably connected with the steel pipe pile; a plurality of first telescopic springs arearranged at the top of the sleeve in the circumferential direction, and a plurality of second telescopic springs are arranged at the bottom of the sleeve in the circumferential direction. The ice-breaking and wave-eliminating composite device has the beneficial effects that the structure is simple, the cone volume is small, the vertical height is less than the difference between the average high tide level and the average low tide level in the sea area where the device is located, the self-adaption change with the tide level can be achieved, and the ice load during the ice period and the waveload during the ice-free period are effectively reduced.

The invention discloses a hand-push double-tooth multifunctional ice breaking machine. The machine comprises a trolley, a hot melting module, an ice breaking module, a collecting module, a transportation module and a crushing module. The hot melting module, the ice breaking module, the collecting module, the transportation module and the crushing module work cooperatively to form the multifunctional ice breaking machine. Road ice breaking, ice block collecting, ice breaking and cleaning are integrated. The invention discloses a double-tooth ice breaking wheel. Sharp teeth and an impact gear are used for ice breaking alternately, point-plane combination is achieved, and the ice breaking efficiency is greatly improved. According to the machine, compacted ice and snow of a road can be treatedin a large range, an ice layer of a certain area can be broken in pertinence, and accumulated snow is removed. Meanwhile, the machine is suitable for the road environment, communities and the like and also applicable to solving the problems about snow accumulation and ice accumulation, and the travel safety of people is guaranteed.

The invention relates to a small-sized icebreaking and oxygen increasing boat which comprises a left boat body (1) and a right boat body (2) and is characterized in that a mounting seat (9) is vertically and fixedly arranged at the front end of a boat deck (3); the upper end of the mounting seat (9) is hinged with the middle section of a big arm (7) by a rotating shaft (8); the front end of the big arm (7) is provided with a roller (11); the outer periphery of the roller (11) is uniformly provided with icebreaking teeth (13); the tail end of the big arm (7) is connected with one end of a movable rod (17) by a big arm connecting shaft (15); the other end of the movable rod (17) is hinged with one end of a connecting rod (20) by a hinged shaft (16); the other end of the connecting rod (20) is arranged at the top end of a support frame (10) by a support frame connecting shaft (19). The small-sized icebreaking and oxygen increasing boat has a compact structure, is convenient to operate, is low in cost and has a large once icebreaking area and a large once icebreaking thickness; after icebreaking, a large area and a large volume of floating ice cannot be generated; the rapid and efficient icebreaking operation can be realized; the small-sized icebreaking and oxygen increasing boat has a wide market prospect.

Disclosed is a novel ultrasonic wave deicing device. The novel ultrasonic wave deicing device is provided with a pair of ultrasonic generators (2) which are oppositely arranged and installed on a slide rail 1 (1), and another ultrasonic generator (4) for surveillance and an ultrasonic signal receiver (5) which are installed on another slide rail 2 (3). During the concrete use process of the novel ultrasonic wave deicing device, the ultrasonic generator (4) for the surveillance can transmit ultrasonic waves to the surface of a road and the surface of a plane. The ultrasonic signal receiver (5) uses a computer to analyze the thickness of an ice layer after the ultrasonic signal receiver (5) receives a reflected signal. The pair of the ultrasonic generators (2) located on the slide rail 1 (1) can adjust angles and transmitting power according to the thickness of the ice layer. Accordingly, the ultrasonic waves can be conveniently focused on a suitable position, and then the ice layer is crushed.

The invention discloses an ice breaking snow sweeper, which comprises a sweeper body and a hydraulic oil cylinder on the sweeper body, wherein the driving end of the hydraulic oil cylinder is fixedlyprovided with an overhauling sealing cover; the overhauling sealing cover is fixedly provided with a cylinder body; the cylinder body is a hollow structure of which the two ends communicate; a pistonand a guide clapboard are fixedly installed in the cylinder; the piston is provided with an ice breaking mechanism, wherein the ice breaking mechanism comprises an installation casing pipe, wherein the installation casing pipe is in threaded connection to the piston, and a hollow ice breaking cone is installed in the installation casing pipe; a reset structure is arranged between the guide clapboard and the installation casing pipe; one end, which faces the overhauling sealing cover, of the cylinder body is provided with a high-pressure air inlet pipe through a high-pressure air inlet nozzle;and the high-pressure air inlet pipe is provided with an air inlet solenoid valve. The ice breaking snow sweeper has the advantages that an airflow ejected by high-pressure air performs an ice layer melting function, melting is intensive so as to be convenient in splitting an ice layer and convenient in subsequently carrying out an ice breaking operation by an ice breaking rod and an ice breakingshovel.

The invention provides a green energy-saving tail icebreaking type three-purpose tugboat which comprises a tugboat body and a propeller arranged on the tugboat body, wherein an icebreaking part is arranged on a stern of the tugboat body; the icebreaking part is used for resisting against an ice layer and breaking the ice layer; the propeller can drive the tugboat body to advance towards the stern direction; the propeller is arranged on the stern of the tugboat body; the propeller is arranged as a full-rotating contra-rotating paddle propeller; a bulbous bow is arranged on a prow of the tugboat body. Under the condition of an icing water surface, the propeller can be utilized to drive the tugboat body to advance towards the stern direction and the icebreaking part is utilized to break the icing layer, so that the green energy-saving tail icebreaking type three-purpose tugboat can be used as an icebreaking boat. Under the condition of ice-free water surface, the propeller can be utilized to drive the tugboat body to advance towards the prow direction and the bulbous bow and the contra-rotating paddles all have obvious energy-saving effects and are capable of effectively reducing the energy consumption, so that the green energy-saving tail icebreaking type three-purpose tugboat can be used as a normal tugboat, the usage rate of the green energy-saving tail icebreaking type three-purpose tugboat can be greatly increased and the use cost can be reduced.

An ice removing mechanism of an ice removing robot for an overhead cable is controlled by a controller of the ice removing robot for the overhead cable to work and comprises a mechanism body, a pair of striking units and an adjusting mechanism, wherein the mechanism body is arranged at the front end of the robot; a thread transmitting mechanism and a pair of crescent dual flank gears are arranged in an inner chamber of the mechanism body; a longitudinal double-thread screw rod is controlled by a swing motor to rotate; teeth of outer cambered surfaces of the pair of crescent dual flank gears are respectively occluded with corresponding sections on the thread transmitting mechanism; one group of rotary striking hammers are arranged in each striking unit and are fixedly arranged on wheel discs rotating along with the linkage of a motor output shaft; the adjusting mechanism is used for adjusting the heights of the striking hammers and comprises a bracket with teeth; one end of the bracket is fixedly connected with the wheel disc of each striking unit; another external tooth with a tooth end is occluded with the teeth of inner cambered surfaces of the crescent dual flank gears; the bracket rotates clockwise or anticlockwise around a pivot on the mechanism body along with the rotation of the crescent dual flank gears; and each motor is controlled by the controller. The ice removing mechanism is simple in structure and favorable in ice removing effect.

A freezing preventing device of an air sprayer comprises a plurality of first sprayers and a plurality of second sprayers. The first sprayers and the second sprayers are installed on main pipe. First sprayer ports and second sprayer ports are opposite or arranged in a back-to-back mode. A draught fan is connected with the main pipe through an air supply pipe. The main pipe is provided with a floating barrel. Electricity is supplied to the draught fan through a clean energy and commercial power combined power supply device. When the axis of the main pipe is horizontally arranged, the horizontal planes of inlets of the first sprayers and the horizontal planes of inlets of the second sprayers are located on the horizontal plane where the axis of the main pipe is located and above the horizontal plane where the axis of the main pipe is located. The angle formed between the axes of the first sprayers and the horizontal planes of the inlets of the first sprayers ranges from -45 degrees to 45 degrees, and one side of each second sprayer is the same. The non-frozen area can be formed on the upstream side of a gate and other hydraulic structures in the northern area, and equipment is convenient to maintain.

The invention discloses a sluice gate capable of clearing pollution and preventing freezing and manufacturing and using methods of the sluice gate. Thesluice gate comprises a machine body, a sliding groove, a supporting rod, a fixing clamping block, a floating block and an anti-freezing mechanism, the machine body is internally provided with a drainage groove, a water outlet is formed in the drainage groove, a water outlet valve is arranged on the upper part of the water outlet, the upper part of the water outlet valve is connected with a bottom groove, the bottom groove is connected with thedrainage groove through a bottom water outlet valve, the sliding groove is formed in the upper part of one side of the bottom groove, a sluice gate body is arranged on one side of the sliding groove,installed on the upper part of the bottom groove, a flood discharging sliding groove is formed in the outer wall of one side of the sluice gate body, and a flood discharging sluice gate is embedded inthe flood discharging sliding groove. According to the water sluice gate capable of clearing floating objects on the water surface and preventing freezing, the drainage groove is installed, after thewater sluice gate is lowered, water inside the sliding groove flows to the bottom groove, the water outlet valve is opened, the water of the bottom groove can be discharged out of the water outlet onthe drainage groove, in this way, the interiors of the sliding groove and the bottom groove cannot have accumulated water, and freezing can be well prevented.

A safe deicing device for roads and bridges Includes a brine tank, a Hydraulic cylinder, a first electric heating wire, a water Pump and motors, A material inlet is arrange on that brine tank, a transverse plate is fixedly connected to the front side wall of the brine tank, the hydraulic cylinder is fixedly connected to the bottom of the free end of the cross plate, A sleeve is connected to the end of the piston rod of the hydraulic cylinder, A first electric heating wire is arranged in the sleeve, The water pump is fixedly arranged on the front side wall of the brine tank, the water inlet pipe of the water pump extends into the brine tank through the brine tank, the water outlet pipe of the water pump is provided with a spray head facing the ground, the motor is fixedly arranged on the outer wall of the brine tank, the output shaft of the motor extends into the brine tank through the brine tank, and the lower end of the output shaft is provided with a stirring part. The safe deicing device for roads and bridges solves the technical problems that the existing deicing device is destructive to the pavement and the deicing speed is slow; the deicing effect of the safe deicing devicefor roads and bridges is high, and the operation is simple.

A freezing preventing device with water sprayers comprises a plurality of first sprayers and a plurality of second sprayers. The first sprayers and the second sprayers are installed on a main pipe. First sprayer ports and second sprayer ports are opposite or are arranged in a back-to-back mode. An immersible pump is connected with the main pipe through a water supply pipe. The main pipe is provided with a floating barrel. Electricity is supplied to the immersible pump through a clean energy and commercial power combined power supply device. The axis of the main pipe is horizontally arranged, and the horizontal planes of inlets of the first sprayers and the horizontal planes of inlets of the second sprayers are located on and above the horizontal plane where the axis of the main pipe is located. The angle formed between the axes of the first sprayers and the horizontal planes of the inlets of the first sprayers ranges from -45 degrees to 45 degrees, and the second sprayers are the same on one side. The non-frozen area can be formed on the upstream side of a gate and other hydraulic structures in the northern area, and equipment is convenient to maintain.

The invention provides a light deicing shovel convenient to use. The light deicing shovel convenient to use comprises a handle, a shovel handle, a shovel head and an ice breaking gear. The upper end of the shovel handle is connected with the handle, and the lower end of the shovel handle is connected with the shovel head. The ice breaking gear is located on the rear side of the shovel head and at the lower end of the shovel handle. Multiple small holes are distributed in the side, connected with the shovel handle, of the shovel head. The free end of the shovel head is serrated. The light deicing shovel convenient to use has the better ice breaking ability, the structure is simple, and use is convenient; time and labor are saved, and people remove ice conveniently; and certain economical efficiency is achieved.

The invention relates to a modularized icebreaking device with small vibration. The modularized icebreaking device comprises an icebreaking action module, the icebreaking action module is arranged ona carrier through an elastic suspension device, and the icebreaking action module can move in the vertical direction relative to the carrier; and the icebreaking action module comprises a cylinder body and a piston, the piston can conduct up-down reciprocating motion in the cylinder body, and at least the upper portion of the cylinder body is provided with a first elastic part. In the working process, the impact of the icebreaking action module to the carrier is small, and vibration of the icebreaking action module is also small.

The invention provides an intelligent concealed ice breaking skidding resisting system of an expressway. The structure of the intelligent concealed ice breaking skidding resisting system is as follows: an elastic layer (2) and an electric heating belt layer (2) are paved between an abrasion layer (1) of a pavement and a foundation roadbed layer (4); an intelligent pavement sensor (10) is embedded on the abrasion layer (1) of the pavement; a solar cell subassembly (5), a controller (6), a storage battery (7) and a booster inverter (8) are interconnected in sequence to form a solar energy storage device at the roadside; and a PLC (Programmable Logic Controller) controller (9) at the roadside is connected with the intelligent pavement sensor (10), the booster inverter (8) and the electric heating belt layer (3). The system provided by the invention is good in effect of ice removing, has no influence to the traffic, and is energy-saving and environment-friendly.

The invention provides a labor-saving ice-breaking device for fishing in winter. A handle is welded to the right side of the top end of a rod column, a grasp ring is adhered to the outer wall of the top end of the rod column, an upper ice edge is welded to the top end of the right side of the rod column, a top edge is integrally arranged on the top of the upper ice edge, a side edge is integrallyarranged on the right side of the upper ice edge, a cone body is welded to the bottom end of the upper ice edge, a lower ice edge is welded to the middle of the right side of the rod column, accommodating rooms are embedded into the front and back sides of the bottom end of the rod column, a floating pad is movably connected to the top end of each accommodating room through a rotary shaft, an inflating room is embedded onto the back side of the floating pad, an inflating port is embedded into the top end of the back side of the inflating room, movable rooms are embedded onto the left and rightsides of the bottom end of the rod column, a plywood is movably connected to the middle of each movable room through a movable shaft, a pull rod is welded to the bottom end of the plywood, a bottom cone is welded to the bottom end of the rod column through a connecting rod, and a buffer spring is embedded into the middle of the connecting rod. The whole device is stable in structure, convenient to use and operate, quick in ice-breaking speed, small in cracks of ice-broken ice faces and labor- and time-saving.

The invention discloses an unfreezer for unfreezing of fruits and vegetables. The unfreezer includes a rack, an unfreezing groove, a transmission net belt and a power source driving the transmission net belt to move. The unfreezing groove is mounted on the rack, and is internally provided with a partition board that divides the unfreezing groove into a first groove body and a second groove body, and the upper end of the partition board is lower than the upper end face of the unfreezing groove. The discharge end of the transmission net belt is located above the first groove body. The unfreezer is also provided with an air outlet equipped drying device, and the air outlet is communicated with the first groove body through a pipeline. The unfreezer can completely remove ice blocks on the surfaces of fruits and vegetables.

The invention discloses a preparation method of a sheet-shaped rubber antiskid belt for a tire, raw rubber is prepared by combining common raw rubber, methyl phenyl vinyl silicone rubber and brominated isobutylene-p-methylstyrene rubber, so that not only can the mechanical property, the tearing property and the aging property of the rubber antiskid belt be met, but also the glass transition temperature and the brittle temperature of the rubber material can be reduced; and the use temperature of the rubber material can reach-120 DEG C, and the gripping force is also greatly improved. A vulcanization system selects an effective vulcanization system and a peroxide vulcanization system, so that the content of intramolecular combined sulfur is low, the glass-transition temperature of the rubber material is low, and the cold resistance of the rubber material is improved. In a filling system, gas-phase white carbon black is selected to replace part of carbon black, so that the ice surface gripping power and the tearing property of the rubber material can be remarkably improved. An anti-aging system is selected from a pollution-free novel anti-aging agent. And low-molecular-weight high-vinyl 1, 2-polybutadiene resin (liquid) is used as a peroxide assistant cross-linking agent, so that the low-temperature performance of the rubber material is better.

The invention provides an ice breaking device which is suitable for manual ice breaking after a large area of water surface is frozen. The ice breaking device comprises a delivery system, a scattering system and an ice breaking element system. The delivery system comprises a rocket engine and an underwater movable parent projectile body. The scattering system comprises an extension pipe and scattering reagents. The ice breaking element system comprises independent sub projectile bodies which are symmetrically embedded in the two sides of a parent projectile shell of the underwater movable parent projectile body. The delivery system can move in the water under ice to be away from an initial operation area and scatter the ice breaking element system in the direction parallel to the ice surface under the action of the scattering system after reaching a determined area and conduct explosion for ice breaking. The ice breaking element system generates pushing force through the structure of the ice breaking element system to move in the water at random to explode to increase the ice breaking area. According to the ice breaking device, the parent and sub projectile scattering principle is adopted, and the ice breaking device is away from the initial operation area, and is simple in structure, easy to operate, high in safety, large in breaking area, obvious in ice breaking effect, and low in environment pollution, and lowers production difficulty and cost.

The invention discloses an under-ice fixed-depth ice breaking bullet capable of being thrown automatically and based on a drone. The bullet comprises a bullet body, a floater, an inner end cover, an outer end cover, an explosion timer arranged in the inner end cover and a water-proof plug arranged on the outer end cover. A floater chamber matched with the floater is arranged on a lateral wall of the bullet body, the floater is arranged in the floating chamber to form a cylindrical whole body with the bullet body and fixed by a water-soluble ribbon, and the floater is connected with the bullet body through two fixed-depth ropes. Outer threads are arranged on a port of the bullet body, a flange is arranged at the open end of the inner end cover, the inner end cover is arranged at the port position of the bullet body, the outer end cover is in threaded connection with the port of the bullet body, and a sealing rubber ring is arranged between the flange of the inner end cover and the outer end cover. The bullet has the advantages of being small in size, light in weight, novel in design, simple in throwing, adjustable in delay, safe, reliable, large in explosive force, good in ice breaking effect and capable of conducting continuous throwing operation.

The invention discloses an icebreaking device with a simple structure. The icebreaking device mainly comprises a bracket body (4), a mounting plate or a mounting frame (2), a sliding shaft (3), a longitudinal cutting knife and obstacle crossing device (1), icebreaking knives (9-14), a special longitudinal cutting knife or a longitudinal cutting knife (15) connected with the icebreaking knives, a positioning nut or a positioning ring (6) and a spring (7), and is characterized in that the icebreaking knives (9-14) in the icebreaking device are mounted under the mounting plate or the mounting frame (2), which is connected with the lower part of the sliding shaft (3) or a cambered elastic steel plate (17) in the icebreaking device; and the lower part of the bracket body (4) of the icebreaking device is vertically or obliquely mounted on ground. After being manufactured according to the structure, the icebreaking device is simple in structure and good in icebreaking effect, therefore the icebreaking device is really a relatively good icebreaking device.

The invention discloses laser and ultrasonic dual-mode tunnel deicing equipment and a using method thereof, and particularly relates to the field of tunnel deicing. A base is included. An azimuth torque motor is fixedly mounted in a supporting column; a supine torque motor is fixedly mounted at an outer end of a bearing seat; an emitting cylinder is welded to one side of a supporting rod; a laserdevice body is fixedly arranged in the emitting cylinder; a light beam collimator is arranged on one side of the laser device body in the emitting cylinder; and a calibration mechanism is arranged above the base; the calibration mechanism comprises an orientation calibration mechanism and a supine calibration mechanism, output ends of a first camera and a second camera are electrically connectedwith an image signal amplification circuit, the image signal amplification circuit is electrically connected with an image analysis and comparison unit, and a microcontroller and an error analysis unit are fixedly arranged in the supporting column. Accuracy of a heating position of the laser can be ensured.

The invention discloses a snow removing and ice breaking integrated machine in the technical field of engineering machinery. The snow removing and ice breaking integrated machine comprises a vehicle frame, and further comprises two pairs of wheels installed at the front end and the rear end of the vehicle frame correspondingly, a vehicle-mounted hydraulic system, a vehicle-mounted controller usedfor controlling the vehicle-mounted hydraulic system, a snow sweeping mechanism capable of sweeping accumulated snow on the ground, a bottom moving seat capable of horizontally and slidably being installed on the bottom side of the vehicle frame and sliding in the front and back direction of the vehicle frame, and a telescopic oil cylinder installed on the vehicle frame and used for driving the bottom moving seat to slide front and back, an ice breaking mechanism capable of breaking ice blocks on the ground is installed on the bottom moving seat, and a heat spraying system used for spraying heat towards the ground is further installed on the bottom moving seat. The snow removing and ice breaking integrated machine has the good ice breaking effect, and an ice layer and an accumulated snow layer are molten in the ice breaking process.

The invention discloses municipal road hard snow shoveling equipment which comprises a snow shoveling vehicle body, a fixing plate is fixed to the front end of the snow shoveling vehicle body, a mounting rod is rotatably connected to the front end of the fixing plate, a mounting plate is fixedly connected to the front end of the mounting rod, and a first oil cylinder is rotatably mounted on the fixing plate. A piston end of the first oil cylinder is rotationally connected to the mounting rod, a fixing rod located below the mounting rod is fixed to the front end of the fixing plate, a snow shoveling bucket is rotationally mounted at the front end of the fixing rod, a second oil cylinder is rotationally mounted on the fixing rod, and the piston end of the second oil cylinder is rotationallyconnected to the snow shoveling bucket. A snow sweeping mechanism is arranged on the front side of the lower portion of the mounting plate, an ice breaking mechanism is arranged on the rear side of the lower portion of the mounting plate, and a fixing frame is fixedly connected to the upper portion of the mounting plate. Snow sweeping, ice breaking and snow shoveling operation can be conducted onthe road surface, the ice breaking effect is good, and the road snow shoveling efficiency is greatly improved.

The invention discloses an unmanned aerial vehicle for the low temperature environment and a protecting device, and belongs to the field of unmanned aerial vehicles. According to the unmanned aerial vehicle and the protecting device, an unmanned aerial vehicle body is included, a main control plate is connected to the upper end of the unmanned aerial vehicle body, two supports symmetrical to eachother are fixedly connected to the lower end of the unmanned aerial vehicle body, anti-sliding sleeves sleeve the outer ends of the supports, two symmetrical ejecting grooves are formed in the lower ends of the supports, the two ejecting grooves are correspondingly located on the two sides of the anti-sliding sleeves, ejecting fixing devices are arranged at the inner ends of the ejecting grooves,the ejecting fixing devices comprise ejecting devices, the ejecting devices are fixedly connected with the inner top ends of the ejecting grooves, locating stabs are fixedly connected to the lower ends of the ejecting devices, the locating stabs are located on the inner sides of the ejecting grooves, and optical fiber sensors are mounted at the lower ends of the supports. The effect of ice breaking by using the unmanned aerial vehicle can be achieved, labor work quantity is decreased, the working efficiency is improved, ice breaking in a fixed-point mode can be achieved, and thus ice in any position of a fishpond can be broken easily.

A direct type cold start ice breaking system for a hydrogen loop of a fuel cell comprises: a fuel cell stack comprising an air side and a hydrogen side; an air supply subsystem; and a hydrogen supply subsystem. A tee joint and a fourth switch valve are arranged on a pipeline between an air compressor and an intercooler, and a one-way valve is arranged on a pipeline between the gas-water separator and a hydrogen inlet on the hydrogen side. The tee joint is connected with a pipeline between the gas-water separator and the one-way valve or a pipeline between the gas-water separator and the hydrogen circulating pump through a third switch valve, hot air discharged by the air compressor enters the gas-water separator and the hydrogen circulating pump through the tee joint and the third switch valve, and ice breaking is carried out on the hot air in the gas-water separator and the hydrogen circulating pump. The hydrogen circulating pump can be rapidly filled with hot air, the frozen part of the rotor can be rapidly subjected to ice breaking and melting, the consumed time is short, the ice breaking effect is good, the hydrogen circulating pump can be rapidly started to work normally, and normal operation of the whole fuel cell system is guaranteed.