41results about How to "Does not affect passability" patented technology

The invention belongs to the technical field of vehicle-borne radars, and particularly relates to a high-mobility large-scale radar vehicle. The radar vehicle comprises an assembling platform and an electronic equipment cabin, wherein leveling supporting legs are arranged on the lower plate surface of the assembling platform; a fixed antenna and a folded antenna are arranged at the electronic equipment cabin; the folded antenna is driven by a hydraulic driving assembly, so that two position conditions of withdrawing and unfolding are generated along a vertical surface; when the folded antenna is under a withdrawing condition, the antenna plate surface of the folded antenna is vertically arranged, when the folded antenna is under an unfolding condition, the antenna plate surface of the folded antenna is horizontally arranged, and the antenna plate surface of the folded antenna and the antenna plate surface of the fixed antenna are in the same plane; and the radar vehicle also comprises a servo control system and an electric generating system. According to the high-mobility large-scale radar vehicle disclosed by the invention, the situation that the width and the height are not exceeded during the transporting of radar antennas can be guaranteed, functions of quick erecting and quick removing of an antenna array surface can also be realized, and finally, the high mobility of the ground vehicle-borne radar is guaranteed.

The invention relates to a fast clamping positioner and belongs to the technical field of automobile mechanical machining and assembling. The fast clamping positioner comprises a machine frame and a workpiece fixing rack arranged on the machine frame. An upper sliding rack mechanism and a lower sliding rack mechanism perpendicular to the upper sliding rack mechanism are arranged on the machine frame. The upper sliding rack mechanism and the lower sliding rack mechanism are arranged in a spaced mode. Clamping rod mechanisms which are capable of getting close to or getting away from each other in the horizontal direction are fixed to the two ends of the lower sliding rack mechanism correspondingly. Lifter clamping mechanisms which are capable of getting close to or getting away from each other in the horizontal direction are fixed to the two ends of the upper sliding rack mechanism correspondingly. A sensing assembly is arranged on the upper sliding rack mechanism. According to the fast clamping positioner, the structure is reasonable, operation is convenient, precise positioning of workpieces can be achieved, the labor cost is reduced, the production efficiency of enterprises is improved, and automatic efficient operation is guaranteed.

The invention discloses a parking assisting device and a method. The method utilizes the auxiliary parking device. The parking assisting device comprises a support arm, the support arm is arranged at the rear end of the bottom of a vehicle body in a pivotal connection mode, the length of the support arm is larger than the distance from the bottom of the vehicle body to the ground, and a roller is arranged at the other end of the support arm; in one state, the support arm is retracted at the bottom of the vehicle body; and in another state, the support arm is rotated to be in a state of standing at the bottom of the vehicle body under the driving action of a driving mechanism, rear wheel tires are arranged in a suspending mode, and the rear end of the vehicle body is subjected to lateral displacement under the action of the roller. The parking assisting device and the method have the advantages that the implementation cost is low, the operation is convenient, the operation can be achieved through manual control or wireless remote control by drivers, the parking assisting device and the method are safe and convenient, the requirement for size of parking space is greatly reduced, and a vehicle can be accurately parked in space which is half meter larger than the vehicle length.

The invention discloses a large freight vehicle tail anti-impact device which comprises a front face impact board. An oblique board is arranged at the upper end of the front face impact board. A height adjusting mechanism fixed to the tail end of a vehicle girder is arranged on the inner side of the oblique board. A connecting frame is arranged on the inner wall face of the front face impact board. A limiting buffering mechanism located on the two sides of the tail of the vehicle girder is hinged to the two ends of the connecting frame and located on the inner side of the height adjusting mechanism. The limiting buffering mechanism comprises two bases fixed to the vehicle girder. A horizontal guide rod is arranged between the two bases and sleeved with a horizontal sliding seat. The horizontal sliding seat is hinged to the connecting frame. A buffer spring is further arranged on the side face of the horizontal sliding seat, wherein the horizontal guide rod is sleeved with the buffer spring. The large freight vehicle tail anti-impact device has the beneficial effects that the safety protection performance can be improved.

The invention relates to a multiple blade type non-blocking pump and an impeller thereof. The multiple blade type non-blocking pump comprises a pump body, the impellers, a pump shaft and a driving motor. The pump body is characterized in that an inlet of the pump is designed into a large inlet, the impellers are placed on one side of the interior of a pump cavity, and the width of a portion of the cavity, which does not contain the impellers, is 0.15-0.20 of the outer diameter of each impeller. The impeller comprises a wheel body, a wheel shaft at the center of the wheel body, and a blade and a subsidiary blade on the wheel body. The impeller is set in a half open multiple blade type, only comprises a rear cover plate (2) and does not comprise front cover plate. The impellers of the multiple blade type non-blocking pump are different from impellers of a common non-blocking pump, wherein the number of the impellers of the common non-blocking pump is small, and inlet and outlet placement angles of the impellers of the common non-blocking pump are all 90 degrees, and inlet and outlet placement angles of the impellers of the multiple blade type non-blocking pump are all less than 90 degrees, and furthermore the inlet diameter Dj of each impeller of the multiple blade type non-blocking pump is small. According to the multiple blade type non-blocking pump and the impeller thereof, not only is impact loss on inlet areas of the impellers reduced, but also the effective work area of the impellers for mediums is increased, and furthermore vortex loss on the inlet areas of the impellers is reduced, and therefore efficiency and head coefficients are increased. The size of the inlet of the multiple blade type non-blocking pump is about 1.2 times of the size of an inlet of the common non-blocking pump, and accordingly the size of the portion of the cavity, which does not contain the impellers, is as small as possible on the premise of not influencing passage capacity, not only are the efficiency and the head coefficients increased, but also a majority of long fiber and large particle solid bodies can directly enter a spiral case not through the impellers, and furthermore twine-resistant and non-blocking performances of the multiple blade type non-blocking pump are good.

The invention discloses an electric telescopic side pedal of an automobile. The electric telescopic side pedal comprises a pedal body, the pedal body is connected with a stretching support, the stretching support is connected with an output shaft of a speed reducer, an input shaft of the speed reducer is connected with an output shaft of a transmission motor, and the speed reducer is a reduction gear box. When the automobile door of any side of the automobile is opened, the telescopic side pedal is stretched from a contraction state, and when the automobile doors on the two sides are both closed, the telescopic side pedal is changed into the contraction state from a stretching state. When the side pedal recognizes signals generated when the automobile doors are closed and opened, the transmission motor drives the stretching support through the gear box to achieve the function of unfolding and folding the pedal. The side pedal is stretched out and drawn back intelligently and has an anti-pinch function, and passengers can get on and off the automobile conveniently. When the pedal is not used, the pedal is contracted to be attached to the lower portion of an automobile chassis, the trafficability characteristic is not influenced, and the automobile chassis can be protected. The electric telescopic side pedal is simple in structure and reasonable in design, the passengers can get on and off the automobile conveniently, and the automobile chassis can be protected.

The invention belongs to the technical field of new energy, and particularly relates to a weather-resistant intelligent lane-changing connection system for a photovoltaic panel cleaning robot. The system comprises a three-point suspension rail structure unit and an intelligent lane-changing connection unit which are not on the same straight line; an electromagnet attraction unit and a power supplysignal docking unit are arranged between the intelligent lane-changing connection unit and a cleaning unit, and an electromagnetic pin lock positioning unit and a signal feedback unit are arranged between the intelligent lane-changing connection unit and a photovoltaic panel. The system has the advantages of being stable in structure, and high in weather resistance and practicability.

The invention provides an automatic inflating wheel changing excavator and a wheel changing method thereof. The automatic inflating wheel changing excavator comprises an excavator body, four caterpillar band moving mechanisms, a wheel type moving mechanism, a power connecting mechanism, an auxiliary supporting device and a control system. The caterpillar band moving mechanisms are arranged at thebottom of the excavator body and are connected to a hydraulic cylinder I; a walking wheel, a bending track, a bevel gear I and an automatic detecting and air supplementing device are arranged on the wheel type moving mechanism; the bending track is fixed below the excavator body; the walking wheel is movably connected to the bending track in a sleeving mode and is connected to a hydraulic cylinderII; the power connecting mechanism is connected to an engine of the excavator and is provided with a rhombic bidirectional bevel gear; the rhombic bidirectional bevel gear is connected to the caterpillar band moving mechanisms and corresponds to the bevel gear I; and the auxiliary supporting device is arranged at the bottom of the excavator body. The automatic inflating wheel changing excavator is skillful in design and unique and practical in wheel changing form. The tire pressure is kept normal, and the automatic inflating wheel changing excavator can be flexibly applied to excavator equipment.

The invention relates to a full-automatic barrier-free passing device capable of being used for a bus. The device comprises a mounting base, a combined sliding rail mechanism, a retracting and releasing mechanism, a lifting mechanism and a connecting plate assembly, wherein the mounting base is fixedly connected with a bus chassis; the left and right sets of combined sliding rail mechanisms are symmetrically arranged on two sides of the mounting base; the two sets of folding and unfolding mechanisms and the two sets of combined sliding rail mechanisms are connected and correspondingly arranged; the lifting mechanism is arranged on the inner side of the retracting mechanism; a connecting plate assembly is arranged above the lifting mechanism; the mounting base is fixed to a chassis of a rear door of a bus, the direct-current motor serves as a working power source, the ground serves as a main stress point when the device works, passengers are sent into and sent out of the bus through thelifting mechanism and the connecting plate assembly, and therefore the process of assisting the passengers in getting on and getting off the bus is completed, and full-automatic barrier-free passingis achieved.

The invention relates to the field of textile, in particular to an underground drainage and ventilation device for textile. By means of the underground drainage and ventilation device for textile, drainage of a textile workshop can be achieved while foul air in the workshop can also be sucked into a pipe, and the ground in the workshop maintains neat while air quality in the workshop can also be guaranteed. The underground drainage and ventilation device structurally comprises a main pipe; the lower surface of one side of the main pipe is provided with a sewer pipe, and the sewer pipe is communicated with the main pipe; the other end of the sewer pipe is communicated with a sewage pool; the middle segment of the sewer pipe is provided with an odor-resistant bent pipe, and the odor-resistant bent pipe is of an S-shaped structure; the end, close to the sewage pool, of the sewer pipe is provided with a sewage pump; the end face of one side of the main pipe is provided with a ventilation pipe, an opening of the ventilation pipe is higher than the sewage surface, one end of the ventilation pipe is communicated with the main pipe, and the other end of the ventilation pipe communicated with the sewage pool. The underground drainage and ventilation device for textile is convenient and efficient to use, low in use cost and suitable for drainage and ventilation of the textile workshop.

The invention protects a double grouting nozzle device with a self opening and closing function, and is the double high-pressure grouting nozzle device with an automatic opening and closing cover plate. The double grouting nozzle device with the self opening and closing function comprises a drill body and a piston body, a piston rod and pull rods are assembled in a cavity of the piston body, the pull rods comprises two groups of pull rods, the two groups of pull rods are respectively and symmetrically distributed on the upper and lower ends of the piston rod, and the two groups of pull rods respectively penetrate through second locating sleeves arranged on the periphery of the tail parts of the pull rods and are connected with the cover plate though set screws. The double grouting nozzle device with the self opening and closing function can be built in a drill pipe body, the cover plate is in a sealing state during an off working state and covers nozzles, and blockage and damage of a drilling rig caused by inpouring of outside stratum pressure grout into the nozzles and a drill pipe can be effectively avoided; during a working state, a piston is forced to retreat by the grout withhigh pressure and compressed air, the pull rods and the cover plate are driven to move through linkage, the cover plate is opened instantaneously, and then the grout is erupted from the nozzles.

The invention relates to a high-strength escape pipe convenient to socket and fix. The high-strength escape pipe is characterized by comprising a plurality of unit pipe bodies which are in socket connection end to end, wherein each unit pipe body comprises an inner pipe body and an outer pipe body; each inner pipe body comprises a pipe body section, a socket head section and a plug section; the pipe wall of each pipe body section is of a hollow structure; each hollow structure is filled with foam; each pipe body section is coaxially sleeved with the corresponding outer pipe body; the space between the pipe body section of each outer pipe body and the pipe body section of the corresponding inner pipe body is also filled with foam; a plurality of connecting pieces are connected to the socket parts of the connected unit pipe bodies; each connecting piece comprises an arc-shaped gasket, a through connecting pipe and a connecting bolt; each through connecting pipe is coaxially inserted into the socket part of the corresponding unit pipe body; each arc-shaped gasket is attached to the outer surface of the socket head section at the socket part; and each connecting bolt penetrates through the corresponding arc-shaped gasket and is in threaded engagement connection with the corresponding through connecting pipe. The high-strength escape pipe is light in weight, good in compressive property and high in socket stability.

The invention provides a two-phase flow pattern sensor based on a friction nano power generation principle. The sensor comprises a base, a top cover, a push rod and a circuit board, wherein the top cover is fixed at the upper part of the base, and a circuit cabin is formed between the base and the top cover; a metal sheet is arranged on the bottom surface of the top cover; the push rod penetratesthrough the base and can move vertically; the lower end of the push rod is connected with a struck board, and the upper end of the push rod extends into the circuit cabin and is connected with a friction board; the friction board is opposite to the bottom surface of the top cover, and a friction material layer is arranged on the upper surface of the friction board; the circuit board is connected with the metal sheet and the friction material layer; the struck board is used for receiving impact of bubble flow in gas-liquid two-phase flow, so that the friction board moves upwards to make contactwith the bottom surface of the top cover, the friction material layer and the metal sheet are subjected to triboelectrification to generate potential difference signals, and the circuit board monitors the potential difference signals and determines the pattern of the gas-liquid two-phase flow according to the potential difference signals. The sensor has the beneficial effects that based on the principle of a friction nano generator, the flow pattern is measured by measurement of electrical signals, and self-powering can be achieved.

The invention relates to an EGP front protection structure for a hazardous chemical substance transport vehicle and the hazardous chemical substance transport vehicle, and belongs to the technical field of automobile silencers. The EGP front protection structure comprises a front protection support, which gradually inclines and extends backwards from top to bottom, and comprises two side plates that are bilaterally symmetrical and arranged at intervals; an upper cross beam and a lower cross beam, which are fixedly connected between the two side plates; a protection plate, which is located between the upper cross beam and the lower cross beam and fixedly connected with the two side plates; and an EGP support, which is detachably connected with the upper cross beam and comprises a quadrilateral steel support formed by bending a steel plate material. A plurality of nuts are arranged on the side, close to the upper cross beam, of the quadrilateral steel support, and a plurality of mounting holes are formed in the side, away from the upper cross beam, of the quadrilateral steel support. The front protection support is arranged to be of the structure gradually inclining and extending backwards from top to bottom, the approach angle of the whole vehicle is not affected while the installation requirement of the front protection support and the EGP assembly is met, and the passing performance of the whole vehicle is not affected while protection is provided for the EGP assembly.

The invention relates to the field of stereo parking garages, in particular to a mechanical stereo garage. The mechanical stereo garage comprises guide rails, a portal frame and a parking device, wherein the portal frame comprises sliding beams which are parallel to the guide rails and located above the guide rails; and the parking device is used for transferring a vehicle carrying platen to the portal frame and comprises a first moving assembly, a second moving assembly, a main stand column, a lifting base and a connecting frame, the first moving assembly can move along the guide rails, the second moving assembly can move along the sliding beams, the connecting frame is connected with the first moving assembly and the second moving assembly, the main stand column is rotatably arranged onthe first moving assembly, and the lifting base can ascend and descend along the main stand column. The mechanical stereo garage is reasonable in structural arrangement, is stressed uniformly and hasno eccentric load, the first moving assembly and the second moving assembly are not easily derailed, operation is stable, safety and stability are realized in the parking process and under the stop and start conditions, the overall stability of the garage is good, and the garage does not occupy floor space.

The invention discloses a hydraulic lifting device, which comprises an agricultural machine frame, guide tubes, guide rods, a beam, an oil cylinder, a mounting frame and pin shafts. The hydraulic lifting device is characterized in that the guide rods are arranged at the two ends of one side of the agricultural machine frame, and extend into the guide tubes, wherein the top ends of the guide tubes are connected through the beam; the oil cylinder connected through the pin shafts is arranged between the beam and the agricultural machine frame; the mounting frame is arranged on the left sides of the guide tubes. The hydraulic lifting device has the beneficial effects that the hydraulic lifting device can automatically ascend and descend, is raised when not being used, is lowered when being used, and can be upgraded for direct use.

The invention discloses a forage throwing mechanism. The forage throwing mechanism comprises a vertical throwing part and an arc-shaped throwing part which are connected in sequence; the arc-shaped throwing part comprises a central sleeve, an arc-shaped spraying barrel and a spraying barrel cap which are connected in sequence; the arc-shaped spraying barrel comprises a basic spraying barrel and a lengthened spraying barrel, one end of the basic spraying barrel is installed at the upper end of the central sleeve in a hinged mode, and the lengthened spraying barrel is connected with the other end of the basic spraying barrel in a hinged mode; the end, close to the lengthened spraying barrel, of the basic spraying barrel is a passing opening, a forage guide plate is arranged at the passing opening, and when the forage throwing mechanism throws forage to the accompanying vehicle, the forage guide plate does not block the passing opening; when the forage throwing mechanism throws the forage to the forage bin, the forage guide plate blocks the passing opening. The working modes of the forage guide plate are convenient to switch, and after the lengthened spraying barrel is additionally arranged on the arc-shaped throwing part, the good effect that hay can be selectively sprayed to a forage bin or an accompanying truck can be achieved.

The invention relates to the field of automobile electric pedals, and discloses a two-step electric side pedal device for an automobile. The device comprises first-step pedal panel end covers, a first-step pedal panel, a swing arm shifting fork fixing piece, a driving motor assembly, a driving arm, a rocker arm, a swing arm shifting fork, a pin shaft, a bushing, a second-step pedal panel, a limiting piece A and a limiting piece B, wherein the first-step pedal panel end covers are installed at the left end and the right end of the first-step pedal panel respectively, the swing arm shifting fork fixing piece, the driving motor assembly, the driving arm, the rocker arm, the swing arm shifting fork, the pin shaft and the bushing are all located in a cavity of the first-step pedal panel, the driving motor assembly is in transmission connection with the swing arm shifting fork through the driving arm and the rocker arm, and the second-step pedal panel is fixedly connected with the swing arm shifting fork through the pin shaft and the bushing. The device is high in structural strength, meets the requirement of large vehicles for high chassis performance, and effectively prevents the driving motor assembly from being collided and damaged by external factors.