281results about How to "Reduce storage volume" patented technology

The invention relates to an antenna mechanism, in particular to a modular spatial curved surface folding and unfolding antenna mechanism based on rib mechanisms. The modular spatial curved surface folding and unfolding antenna mechanism aims to solve the problems that an existing unfolding-type parabolic cylinder antenna structure is low in molded surface precision, poor in stability and low in integral rigidity, an umbrella-shaped antenna structure is not suitable for reflecting surface stretch forming, and a truss antenna structure capable of being unfolded only can be unfolded unidirectionally but a parabolic cylinder can not be formed. The modular spatial curved surface folding and unfolding antenna mechanism comprises two speed-controlled motors, two longitudinal connection rib mechanisms, two folding and unfolding connection mechanisms, a plurality of transverse connection rib mechanisms, a plurality of single rib mechanisms, a plurality of single modular folding and unfolding mechanisms, a plurality of tensioning pull ropes and a plurality of modular connection mechanisms. Two transverse outer side supporting frames are arranged between the two longitudinal connection rib mechanisms in parallel and are respectively formed by connecting multiple transverse connection ribs in series, and the two folding and unfolding connection mechanisms, the single modular folding and unfolding mechanisms and the single rib mechanisms are arranged in the supporting frames. The modular spatial curved surface folding and unfolding antenna mechanism is applied to satellites, space stations and space probes.

The invention provides a compressed air energy storage and power generation integrated system based on wind and light complementation. The compressed air energy storage and power generation integrated system comprises a compressed air energy storage system part, a compressed heat storage system part, an expansion machine power generation system part and a solar heat storage system part; the compressed air energy storage system part comprises multiple stages of air compressors and an air storage tank; the compressed heat storage system part comprises cold tanks, hot tanks, first heat exchangers and second heat exchangers; the cold tanks are connected with the hot tanks through the first heat exchangers; and the hot tanks are connected with the cold tanks through the second heat exchangers. The compressed air energy storage and power generation integrated system further comprises a wind power generation system part; the wind power generation system part drives the air compressors to work, compressed air passes through the first heat exchangers, and then is stored in the air storage tank; the compressed air in the air storage tank is heated by the second heat exchangers and then high-temperature and high-pressure air is provided to expansion machines; and the solar heat storage system part provides heat to the air input to the expansion machines. The compressed air energy storage and power generation integrated system can utilize renewable energy sources, off-peak power is used in a peak period, and the functions of energy conservation and emission reduction are exerted.

The present invention provides an electric operational lifting and revolving insulation platform provided with an upright rod. The upper and the lower ends of the upright rod are rotationally connected with an upper anchor ear and a lower anchor ear for enclasping a telegraph pole respectively; the external surface of the upright rod is provided with a rack; the internal side of the insulation platform is connected with an upper sliding bush jacketed on the upright pole and is provided with a worm wheel and worm conjugation; wherein, the worm is a drive shaft and the worm wheel is meshed with the rack; the external end of the insulation platform is hinged with the lower sliding bush jacketed on the upright rod through an insulation sway rod. The present invention with simple structure, safety and reliability bears the insulation platform on the telegraph pole by enclasping without a base, applicable to electric installation and maintenance in fields, mountain areas or narrow places; the present invention can lift the insulation platform by manually swaying or electrically driving the worm wheel meshed with the rack, and rotate the insulation platform around the upright rod by manually swaying the worm wheel connected with the upright rod, thus changing the radial position and facilitating the electric examination and operation of operators.

The invention discloses an expandable mesh parabolic cylinder antenna, and mainly solves problems of large storage volume and low surface precision in the prior art. The expandable mesh parabolic cylinder antenna is composed of an expansion mechanism (1), a mesh surface supporting mechanism (2), flexible cables (3) and a wire mesh (4). The mesh surface supporting mechanism (2) is symmetrically installed on both sides of the expansion mechanism (1). The flexible cables (3) are interlaced on the mesh surface supporting mechanism. The wire mesh (4) is disposed on the flexible cables (3). During folding up, the expansion mechanism is retracted along a straight line; the mesh surface supporting mechanism is folded up and retracted on both sides of the expansion mechanism; and the flexible cables and the wire mesh are retracted in remaining space of the mesh surface supporting mechanism. During expansion, the expansion mechanism is expanded along a straight line; the mesh surface supporting mechanism is stretched towards both sides of the expansion mechanism (1); and the flexible cables tighten and support the wire mesh (4) so as to form a parabolic cylindrical surface. The expandable mesh parabolic cylinder antenna has the advantages of small storage volume and high surface precision, and can be used for searching targets in the air and measuring target azimuths.

A storage apparatus including a circuit board, a first flash memory, a first golden finger, a control unit, and a supporting component is provided. The circuit board has a first surface and a second surface. The first flash memory is disposed on the circuit board. The first golden finger and the control unit are disposed on an end of the circuit board, in which the first golden finger is disposed on the first surface, and the control unit is disposed on the second surface, and the control unit is substantially on the backside of the first golden finger. The control unit is electrically connected with the first memory and the first golden finger. The supporting component is used for supporting the circuit board.

An improved erosion control system has a field of spines disposed on a support structure. The spines capture landscaping material that is placed on top of the erosion control system, hiding the landscape / erosion control system. The spines are arranged in relation to each other and to the lower support structure such that spaces exist between most of the distal portions of the spines, and the spines are relatively stiff such that the distal ends of the spines stand away from the lower support structure when in a rest position to capture the landscape material.

A headset device comprises a first audio output module, a second audio output module and a head wearing module, wherein the head wearing module is connected to the first audio output module and the second audio output module, and the first audio output module and the second audio output module are respectively positioned on the two sides of the head wearing module. The head wearing module has a use state and a storage state, when the head wearing module is in the use state, a user can comfortably put the second audio output module on the appropriate position, when the head wearing module is in the storage state, the user can straighten the head wearing module, and part of the head wearing module is retracted in the second audio output module, so that the headset device provided by the invention occupies a relatively small storage space.

The invention discloses a liquefied carbon dioxide energy storage system and application thereof. The liquefied carbon dioxide energy storage system adopts carbon dioxide as an energy storage medium,an artificial container can be used more flexibly, the energy density of the system is improved, the system forms a closed loop, and greenhouse gas can be prevented from being released to the environment; and on the other hand, the liquefied carbon dioxide energy storage system can achieve power grid frequency modulation and peak load shifting, and the renewable energy utilization rate is increased. The liquefied carbon dioxide energy storage system comprises a first compressor, a first cooler, a first hot tank, a first cold tank, a second heater, a first expander, a third expander, a cold regenerator, a throttle valve, a first liquid carbon dioxide storage tank, a second cold tank, a third cooler, a third heater, a second hot tank, a fourth heater, a fifth pump, a third cold tank, a second liquid carbon dioxide storage tank, a third hot tank, a separator, a fourth expander and a fourth cooler.

The invention discloses a compressed gas distributed energy source system using rare gases as a working medium. The system regards the demands for heat and cold of a user as a main target, the heat and the cold are supplied through the process heat produced by compressed gas and low temperature cooling capacity caused by gas expansion, and meanwhile a certain electric quantity is output in an auxiliary mode. The system regards the rare gases as the working medium, the difficulty of designing the system is effectively reduced, the cost of an energy storage system is reduced and safety and stability of system operation are guaranteed by utilizing the state changes of a gas state-a super-critical state-the gas state of the rare gases. Meanwhile, the change of the system series is changed by utilizing the switching of a valve, the electricity output quantity of the cold and the heat of the system is controlled, and the cold and heat supply and the demands can be balanced. The system can be used in cooperation with wind energy, solar energy and other renewable energy sources, other pollutants are not produced in the process of operating, and the compressed gas distributed energy source system has good energy-saving and environment-friendly benefits.

The invention relates to a constant-pressure energy storage system using carbon dioxide as working medium. The system still can provide a great deal of power under the condition of requiring no heat supplement by collecting and recycling heat generate by the carbon dioxide in the compressing process. Features such that the carbon dioxide dissolves with lubricating oil allow constant-pressure storage and constant-pressure release of liquid carbon dioxide and supercritical carbon dioxide. According to the feature that the carbon dioxide absorbs heat and releases heat during phase changing, a constant-temperature cold source is used to recycle and utilize part of the heat (cold), and thus, constant temperature of the constant-temperature cold source under the condition of no external heat (cold) supply and the demand of the carbon dioxide for heat (cold) during phase changing are guaranteed. Therefore, the system uses residual electricity or renewable energy sources as energy sources, produces no pollutant during running and is efficient, environment friendly and energy saving.

The invention relates to the technical field of plastic recovery, and discloses a waste plastic crushing and compressing recovery device based on a sprocket driving principle. The device comprises a shell, wherein a support frame is fixedly welded to the outer portion of the shell, the top of the shell is fixedly connected with a feeding hopper, the inside of the shell is fixedly connected with acutting wheel bearing, the interior of the cutting wheel bearing is movably connected with a first cutting wheel shaft and a second cutting wheel shaft, the outer portions of the first cutting wheel shaft and the second cutting wheel shaft are fixedly connected with a first cutting wheel and a second cutting wheel respectively, the outer portion of the first cutting wheel shaft is fixedly connected with a first transmission wheel, through cooperation between the first cutting wheel and the second cutting wheel, the effect of primarily waste plastic crushing is achieved, the storage transportation space of bottles is reduced, the storage transportation cost is reduced, residual liquid in the bottles can be discharged, the space occupied by the liquid is reduced, the pollution of the liquidis avoided, the storage transportation cost is reduced, and the recovery degradation cost is recycled.

The invention provides an inflating device for operation in a shoal environment. The inflating device comprises an air cushion body, an inflating pipe, an inflating and deflating machine and an inflating valve cap. The air cushion body consists of an upper rectangular air cushion outer layer, a lower rectangular air cushion outer layer and reinforcing sheets adhered between the upper and lower rectangular air cushion outer layers which are identical in shape. The air cushion body is adhered and partitioned into a plurality of air chambers which are identical in shape and arrayed closely by the reinforcing sheets, and each two adjacent air chambers are communicated. An inflating valve is optionally arranged on one of the two outmost air chambers in the array direction of the multiple air chambers. The inflating and deflating machine is connected with the inflating valve through the inflating pipe and used for inflating the air chambers or pumping air from the air chamber through the connected inflating pipe. After inflating / deflating of the air cushion body is completed, the inflating valve cap is mounted on the inflating valve to seal the air chamber. The inflating device is capable of floating on a shoal, changeable in length according to practical needs, high in air tightness and pressure bearing capacity and convenient to maintain.

The invention relates to an anti-viral device embedded in anti-viral software and an anti-viral method for anti-virus by using the anti-viral device. The anti-viral device in the anti-viral software comprises an anti-viral characteristic loading device, a source code compiling device and a native code execution device, wherein the anti-viral characteristic loading device is arranged in an anti-viral software engine and used for loading encrypted and compressed source code characteristics and transferring a result to the source code compiling device; the source code compiling device is arranged in the anti-viral software engine and used for compiling, discovering and clearing away the source code characteristics of virus and generating a native code which can be recognized by an instruction architecture; and the native code execution device is arranged in the anti-viral software engine and used for executing the native code generated by the source code compiling device and associating the native code and a functional function in the anti-viral software engine so as to control and execute the native code generated by the source code compiling device. The device allows antivirus software to use a storage characteristic with smaller size and can execute by higher efficiency.

A clean and efficient gas fire extinguishing agent composition comprises, with the molar volume as the benchmark, 5%-15% of 2-bromine-3,3,3-trifluoropropene (BTP) and 95%-85% of a hydrofluoroalkane fire extinguishing agent or an inert gas fire extinguishing agent. The hydrofluoroalkane fire extinguishing agent comprises one or more of heptafluoropropane, pentafluoroethane, trifluoromethane and 1,1,2,2,3,3,4-heptafluorocyclopentane. The inert gas fire extinguishing agent comprises one or more of nitrogen and carbon dioxide. By the adoption of the gas fire extinguishing agent composition, the fire extinguishing concentration of inert gas can be increased, the storage capacity is reduced, the global warming potential of hydrofluoroalkane is lowered, the environment is improved, the fire extinguishing effect is enhanced, the property is stable, no precipitation is generated after long-time storage, the raw materials are obtained easily, and the production cost is low.

The invention relates to a multi-functional dustbin. The multi-functional dustbin comprises a cylinder 1, a connecting block, a rotating shaft, a fixing block, a label 1, a handle, a sewage purifier, a feeding pipe, a plurality of cutting knives and a stirring shaft, wherein an aspirating plate is fixedly connected with a device main body through a connecting plate, and the purifier is fixedly arranged on the rear end surface of the aspirating plate; a hollow plate is fixedly arranged in the device main body, and the hollow plate is located at the left end of a partition board; an electric motor is fixedly arranged on the upper end surface of the hollow plate, the stirring shaft is mounted at the upper end of a main shaft of the electric motor, and the plurality of cutting knives are symmetrically fixedly arranged at the left and right ends of the stirring shaft; an air pump is mounted in the hollow plate; a press rod is mounted at the right end of a cylinder 2, and a compressing plate is fixedly arranged at the right end of the press rod; and the sewage purifier is fixedly arranged in the device main body, and the sewage purifier is located at the right end of the partition board. The multi-functional dustbin can sort garbage, store garbage and carry out purifying treatment on the garbage and can be easily moved.

The invention discloses a drone with extending drone arms. The drone with the extending drone arms comprises a drone frame, a main drone arm, an auxiliary drone arm, a screw and a screw driving unit,wherein one end of the main drone arm is fixed to the drone arm and provided in a nested mode with the auxiliary drone arm and the screw, the screw driving unit is fixed onto the drone frame, one endof the screw if connected with the screw driving unit, the other end of the screw is threadedly connected with the auxiliary drone arm, the inner wall of the main drone arm is provided with a guide unit, and the screw driving unit is used for driving the screw to rotate to drive the auxiliary drone arm to extend and retract along the guide unit; the auxiliary drone arm bears rotors of the drone. The drone with the extending drone arms also comprises a landing frame, a connecting rod and a steering engine, wherein the steering engine is fixed at the bottom of the drone frame, one end of the connecting rod is connected with the rotating shaft of the steering engine, the connecting rod is fixedly provided with the landing frame, and the steering engine drives the connecting rod to rotate around the rotating shaft and further drives the landing frame to fold and unfold. The drone with the extending drone arms has the technical advantages of being simple in structure, flexible in flight, adjustable in attitude and table in flight.

The invention discloses a microwave radar induction and infrared induction control system, which comprises a microwave radar sensor, a pyroelectric infrared sensor and a central controller, wherein the microwave radar sensor is used for detecting the position and moving speed of an object, and an infrared induction switch is used for sensing an infrared ray with a specific wavelength to detect whether a person enters a sensing area, and the central controller executes instructions according to the signal output of the microwave radar sensor and the pyroelectric infrared sensor. The control system can simultaneously sense whether the human body enters a detected area through the microwave radar sensor and the pyroelectric infrared sensor. Through double judgment, the human body can be moreeffectively identified, the effect of accurate detection can be achieved, and the operation of the load can be controlled; when applied in the intelligent fan, the control system can realize the automatic start of the fan and follow the movement of the human body, a good effect of human body blowing and cooling can be achieved, and the requirements of intelligent life can be met. The intelligent fan provided by the invention is provided with a remote controller, which can facilitate the operation of the remote control fan and is more convenient to use.

The invention provides a self-microemulsion composition which comprises one kind or multiple kinds of materials in oleanolic acid, water-insoluble oleanolic acid and difficultly water-soluble oleanolic acid derivant. The self-microemulsion composition also comprises an oil phase, a surface active agent and a cosurfactant, and the self-microemulsion composition does not contain water. The invention overcomes the defect that the solubility of the oleanolic acid in water is very low, provides the self-microemulsion composition capable of being diluted into the microemulsion with the nanometer level grain diameters by water or water solution, and also provides the microemulsion which obviously improves the dispersivity and the solubility of the oleanolic acid, the water-insoluble oleanolic acid and the difficultly water-soluble oleanolic acid derivant in water, so the bioavailability is improved, the half-life and the blood circulation time of the oleanolic acid can be prolonged, in addition, the microemulsion can be targeted to the tumor because of the nanometer grain diameter of the microemulsion, the curative effect of the medicine can be improved, the medicine toxin can be reduced, and in addition, filtration and sterilization can be realized, and the needle applicability of the injection can be improved. The invention also provides preparation methods of the self-microemulsion composition and the microemulsion.

The invention discloses a smoke diffusion device for power batteries. The smoke diffusion device comprises a battery box and battery devices mounted in the battery box, wherein each battery device comprises a housing for fire resistance and heat insulation, a battery cover in close contact with the upper end of the housing and a battery body mounted in the housing. The smoke diffusion device is simple in structure, and as a plurality of power batteries are orderly combined, the storage size of the battery box can be reduced, and the space utilization ratio is improved; when the power batteriesare subject to thermal runaway, automatic opening and closing of smoke outlets can be realized by bar magnets, smoke plates with magnetoconductivity and the battery covers, and heat generated by thermal runaway can be immediately discharged from a smoke channel, so that the smoke discharge speed is improved; meanwhile, owing to arrangement of closed cavities, expansion of thermal runaway can be effectively controlled, smoke is prevented from corroding battery electrodes, connecting sheets and the like, high temperature, smoke and the like are prevented from damaging the power batteries, accordingly, normal operation of other power batteries is guaranteed, the service life of the power batteries is effectively prolonged, and the use cost is lowered.

A thermo-decoupling expandable truss system applicable to a space planar antenna comprises a thermo-decoupling rectangular frame and an expandable truss. A thermo-decoupling function of bottom frame connectors can be used for releasing in-plane degrees of freedom of the planar antenna to keep a mounting foundation of the expandable truss unchanged under high and low temperature conditions, and in-orbit reliable expansion into a stable truss supporting system can be guaranteed. The expandable truss is contracted in a launching stage to bear load in the launching stage and can be expanded reliably to provide sufficient expansion rigidity and precision for the planar antenna after injection. The technical defect of failure in keeping profile accuracy of an existing antenna supporting structure in space severe temperature field is overcome, the system is available for thermo-decoupling with the antenna to release thermal stress, and the requirement of the antenna on a high-accuracy high-rigidity expandable supporting structure can be met.

The invention discloses a draw frame for cotton yarn production and processing. The frame comprises a support base, the top end of an outer wall of one side of the support base is fixed to a hinge block by a bolt, a side wall of the hinge block is hinged to a groove seat, one side of an inner wall of the groove seat is in threaded connection with a threaded rod, one end, penetrating through the groove seat, of the threaded rod is fixed to a rotating disc through a bolt, a universal joint is hinged to one end of the threaded rod, a scissor telescopic frame is movably connected to one end, awayfrom the threaded rod, of the universal joint, a vertical slot is formed in the inner wall of one side of the groove seat, one end of the scissor telescopic frame is slidably connected to the verticalslot, the top end of the scissor telescopic frame is movably connected with sliding blocks arranged equidistantly, and the sliding blocks are slidably connected with the inner wall of the groove seat. The frame is convenient to fold, reduces the storage volume, is convenient to carry, can press a cotton yarn limit position, and conveniently adjusts the length of the scissor telescopic adjustmentframe, thereby adjusting the gap between adjacent two guiding rollers, the adjustment is convenient, and the operation is simple.

The invention relates to the technical field of power transmission line maintenance operation, in particular to a bypass operation maintenance method suitable for lifting of a cable along with a hoisting platform in complex terrains. The bypass operation maintenance method is characterized in that a maneuvering team consisting of two crawler-type lifting working platforms and a crawler-type cablewinding and unwinding device is adopted to complete bypass operation, a hot-line worker and a bypass cable synchronously go up to a tower at one time, and replacement of a disconnecting switch is completed by means of auxiliary lifting appliances on the working platforms. Compared with the prior art, the bypass operation maintenance method has the beneficial effects that 1) the crawler-type three-vehicle maneuvering team is strong in maneuverability and is more suitable for the bypass operation of farmland cultivated land or other complex terrain environments; 2), the hot-line worker and the bypass cable can synchronously go up to the tower without going up to and going down from the tower for many times, so that the labor intensity is low, and the work efficiency is higher; 3), field workrequirements are met, large-scale equipment such as a cable laying vehicle can be replaced to complete bypass work, so that the flexibility is improved; and 4), extra cranes are not needed to be additionally arranged, so that resources are saved.

Provided is a vehicle-mounted folding wind driven generator. The vehicle-mounted folding wind driven generator comprises a wind driven generator support, a jack post, upper telescopic supporting rods, lower telescopic supporting rods, blades, a generator body, wherein the jack post is vertically installed on the wind driven generator support, the upper telescopic supporting rods are horizontally connected to the upper end of the jack post, the lower telescopic supporting rods are horizontally connected to the lower end of the jack post, the upper end and the lower end of each blade are connected to the outer end of each upper telescopic supporting rod and the outer end of each lower telescopic supporting rod respectively, and the generator body is installed on the upper portion of the jack post. The vehicle-mounted folding wind driven generator has the advantages that due to the fact that the total weight is smaller than 20kg, carrying is convenient; due to the fact that the vehicle-mounted folding wind driven generator is detachable, the vehicle-mounted folding wind driven generator is small in storage size; the maximum charging power can be 500W when the wind speed is 10m / s, and the needed power can be adjusted through stretch and contraction of the supporting rods.

The invention discloses intelligent traffic indication equipment. The equipment comprises a storage box body, a lifting executing device and a main frame body; the main frame body is internally provided with a lifting sliding groove and an accommodating groove communicated with the exterior, an inclined frame body is installed in the lifting sliding groove in a sliding and matched mode, a threadedhole with an opening facing downwards is formed in the center of the inclined frame body, a threaded rod is installed in the threaded hole in a thread matched mode, and the bottom of the threaded rodpenetrates through the main frame body and extends downwards and is connected with a driving motor in a power matched mode. The intelligent traffic indication equipment is simple in overall structure, safe and reliable during running and convenient to use, the efficiency of absorbing and converting solar energy is greatly improved, the use of the mains supply is reduced, the running operation ofthe whole equipment is convenient, the adjustment operation for lowering the main frame body makes the equipment more convenient to convey and carry, the adjustment operation for lifting the main frame body enables drivers of vehicles at the rear row to see a signal indicator light clearly and conveniently, and the occurrence of traffic accidents can be effectively reduced.

The invention discloses an annular multi-stage sedimentation tank for sewage treatment. The annular multi-stage sedimentation tank comprises an annular outer wall, a center column, five settling tanks, a sewage discharge channel gathering device and a sludge guide pipe; the center column is located in the center of the annular outer wall; the five settling ponds are formed in the annular outer wall, distributed around the central column and separated by five partition plates; the sewage discharge channel gathering device is of a spherical structure and is embedded in the bottom of the centralcolumn and the partition plates; the upper half part of the sewage discharge channel collection device is separated by the partition plates and is respectively exposed in the sedimentation tanks, a collection channel and five branch channels are arranged in the sewage discharge channel collection device, one end of each branch channel is provided with a sewage inlet, and the sewage inlets of the branch channels respectively correspond to the sedimentation tanks, so that sludge at the bottom of the tank can be guided into the collection channel; the sludge guide pipe is provided with a sewage pump, and one end of the sludge guide pipe is connected with the collecting channel. According to the invention, sludge at the bottoms of the five settling tanks can be cleaned at the same time as longas the sewage pump on the sludge guide pipe is started, so that the operation is quite convenient.

The invention discloses a branch crushing machine. The branch crushing machine comprises a frame and a machine body arranged in the frame, wherein the machine body moves up and down along the frame to realize the switching between a storage state and a working state; a lifting mechanism used for assisting the machine body to move up and down is arranged between the frame and the machine body; and the frame is provided with a locking mechanism for locking the machine body when the machine body upward moves to enter the working state. The machine body and the frame are connected through the lifting mechanism, so a user can arrange the machine body into the frame during storage, and the storage volume is small; during use, the user lifts the machine body to a position above the frame, and ensures that the frame and the machine body are in a locking state under the action of the locking mechanism, and the operation is simple; meanwhile, the user can lift the machine body to the working position above the frame without effort, the machine body easily slowly falls back to the frame during storage, and the collision and external damage are avoided; in addition, the noise pollution is greatly reduced by encapsulating the frame by a collection box and a sealing cover, and the advantage of silence of the branch crushing machine is reflected.

The invention discloses a novel intelligent traffic indicating device. The indicating device comprises a storage box body, a lifting executing device and a main frame body. The main frame body is provided with a lifting chute and a containing groove communicated with the outside. An oblique frame body is installed in the lifting chute in sliding fit, the center of the oblique frame body is provided with a threaded hole opening downwards, a threaded rod is installed in the threaded hole in thread fit, the bottom of the threaded rod passes through the main frame body and extends downwards, and the bottom of the threaded rod is connected with a driving motor in power fit. The indicating device is simple in integral structure, safe and reliable in operation and convenient to use, thereby greatly improving solar energy absorption conversion efficiency and reducing use of the mains. Further, the whole device is simple and convenient to operate and use, and more convenient to transport and carry by lowering the main frame body. Vehicles in the rear row can see traffic lights clearly when the main frame body is raised, so that traffic accidents can be effectively reduced.

An extensible handle formed from an L-shaped tubular member having a generally arcuate elbow. The extensible handle is coupled to a wheeled cart with a clamping assembly. The clamping assembly includes first and second individual clamping members disposed in a side-by-side relationship at opposing ends of the main body. The first clamping member includes a first aperture formed from opposing hemispherical walls of the main body and is dimensioned to axially receive the L-shaped tubular member therethrough. The second clamping member includes a second aperture formed by a pair of split opposing walls of the main body and is dimensioned to axially receive a longitudinal section of a cart member therethrough. The first and second clamping members are configured to compressively engage longitudinal sections of tubular members passing through their respective apertures by reduction in cross-sectional areas of the apertures