941results about How to "Guaranteed parallel" patented technology

The invention discloses a device for positioning a container in the port. The device is characterized in that two laser length meters comprising a first laser length meter and a second laser length meter are fixedly connected to a horizontal surface of a carrier; the two laser length meters are arranged in parallel in the same direction; a gap is formed between optical axes of the two laser length meters; the two laser length meters synchronously and continuously emit laser pulse trains, and when the laser pulse trains reach a container truck, distances between the laser length meters and laser irradiation points on the container truck are obtained; an angle relation of a connection line and a location line between the laser irradiation points on the container truck is calculated by a data processing unit; the minimum length of the vertical line from the laser irradiation points of the first laser length meter and the second laser length meter to the location line is calculated; and a display screen displays the minimum distance between the container truck and the location line, and also displays driving instructions of forward / back driving, left / right turning or stopping of the container truck. The device realizes container truck positioning by a starting process. The invention also discloses a method for positioning a container in the port.

A regulatable supporter is composed of top plate, top seat, ball hinge, screw piles, locking nuts, base of screw pile, locking screw and base, and can be regulated vertically and horizontally in stepless mode. Its advantages are less compression and high precision.

The invention discloses an automatic detecting device of screw rod straightness and applications thereof, and belongs to the field of automatic straightness detecting devices. The automatic detecting device of screw rod straightness comprises a base platform, a laser displacement sensor, a moving measuring platform, a measuring platform control system and a to-be-measured screw rod rotary system, wherein the laser displacement sensor is installed on the moving measuring platform and is connected with an industrial computer through a data transmission line; the measuring platform moving control system comprises a first moving guide rail, a second moving guide rail, a rolling ball screw rod, a first coupling, a first servo motor and a first servo controller. According to the invention, straightness of a screw rod with spiral groove characteristics can be detected automatically, and the automatic detecting device has the advantages of rapid detection process, accurate results and low product detection cost.

The invention discloses a parallel adjustment system of emission and receiving light paths of laser radar and a method. The system comprises a laser fixedly arranged on the tube of a receiving telescope and having the direction of the emission light parallel to the optical axis direction of the telescope, and a connection mirror, a total reflection mirror and an angle reflector consisting of a pair of right-angle prisms arranged in front of the tube of the receiving telescope, which are arranged in the optical path in front of the laser. The laser beam emitted from the angle reflector enters the tube of the receiving telescope and focuses on a combined focal plane of the primary mirror and the secondary mirror of receiving telescope. The focusi laser spot forms an image on a CCD after turning the direction through a 90-DEG turning mirror, and the clear laser spot image can be viewed on a monitor. The parallelism of the optical paths can be determined and adjusted according to the shape of the laser spot. The invention has the advantages of simple structure and higher accuracy, and has been successfully applied in developed laser radar system.

The invention discloses a microelectrode array device and a special device for cell manipulation and electrophysiological signal detection. The microelectrode array device consists of a chip unit, a printed circuit board and a bottomless cultivation cavity, wherein the chip unit is arranged on the printed circuit board by pressure welding and is embedded into the cultivation cavity; the cultivation cavity is in seal connection with the printed circuit board; the chip unit comprises a substrate, a lower metal layer, an insulation layer, an upper metal layer and a passivation layer in turn frombottom to top; the lower metal layer is provided with at least one measuring electrode and a contact conductor and a bonding pad corresponding to the measuring electrode; the upper metal layer is provided with at least four positioning electrodes and contact conductors and bonding pads corresponding to the positioning electrodes; each of all measuring electrodes and positioning electrodes of the chip unit is led out by a separate contact conductor; one contact conductor is connected with one bonding pad; and each electrode can be applied with a signal or be detected independently.

The invention discloses a system and a method for controlling a robot, relates to the field of robots, and solves a technical problem that a robot is easily deviated when working on a slope in the prior art. The system for controlling the robot comprises a master control module, a running mechanism and a direction collection module, wherein the direction collection module is connected with the master control module and used for collecting direction information of the robot. The direction collection module comprises a magnetic field induction sensor for collecting earth magnetic field data, and a gravitational acceleration sensor for collecting gravitational acceleration data. The master control module obtains the direction information of the robot through the earth magnetic field data of the magnetic field induction sensor and the gravitational acceleration data of the gravitational acceleration sensor, and controls the robot for stably moving in a line through the running mechanism. The invention can be applied to movement control of robots.

The invention relates to a robot positioning grabbing method and system based on laser visual guidance. The robot positioning grabbing method comprises the steps that three non-collinear distance measuring instruments are used for measuring the distance of a target object, and the normal vector of a plane where the target object is located is determined; the posture of a visual sensor is adjustedaccording to the normal vector; two-dimensional image information of the target object is captured through the visual sensor; and the posture of the target object is determined according to the two-dimensional image information, and grabbing of the target object is achieved. The system comprises a positioning grabbing arm, a PLC and an upper computer. The PLC is sealed in the positioning grabbingarm and connected with the upper computer, the positioning grabbing arm is provided with a visual sensor which is connected with the PLC, and the plane where the visual sensor is located is provided with the three non-collinear distance measuring instruments. Compared with the prior art, the robot positioning grabbing method and system based on laser visual guidance have the beneficial effects that the calculation amount is small, the precision is high, and the grabbing speed is high.

The invention discloses a washer feeding device which is applied to a feeding device used for conveying metal washers. The washer feeding device comprises a machine frame and a working table, wherein a feeding mechanism and an obtaining mechanical arm are installed on the working table, a first machining station is arranged on the machine frame, a pressure head which can adsorb a washer is arranged on the first machining station, and the obtaining mechanical arm is arranged below the feeding mechanism. According to the washer feeding device, the obtaining mechanical arm is moved to the first machining station through the feeding mechanism; due to the fact that the pressure head is arranged on the first machining station, the washer can be adsorbed and grabbed, the surface of the washer is parallel to the horizontal plane, preparation is made for the next process, assembling quality is guaranteed, delay caused by workers is reduced due to the mechanical operation, and production efficiency is improved.

The invention relates to a device and method for detecting light-screen parameters of light-screen targets. At present, a method for measuring the distance between two light-screen surfaces is low in measuring precision, the two light screen surfaces are not strictly parallel, high-precision measurement on a shot flying speed cannot be realized, and a light-screen target and a laser target in use need regular detection on the flatness of the screen surfaces and the parallelism and the distance between the two screen surfaces. The detecting device for detecting the light-screen parameters of the light-screen targets is characterized by comprising a datum plane assembly and a distance-measuring datum plane assembly, wherein the distance-measuring datum plane assembly comprises a second laser plane projector, a second plane normal laser projector and a high-precision laser distance measurer, which are arranged on a second precise platform; the datum plane assembly and the distance-measuring datum plane assembly are oppositely arranged in parallel at equal height. The detecting device and the detecting method disclosed by the invention can be used for overcoming the defects that the measurement for the distance between two targets has large errors, that the light-screen surface parallelism cannot be ensured, and the like.

The invention discloses a 3D laser and 2D imaging synchronous scanning device and a scanning method thereof. A laser receiving and sending matrix is installed on a 3D laser radar, the point laser receiving and sending matrix and a line scanning imaging sensor are installed on the same rotatable platform in parallel, the height of the point laser receiving and sending matrix and the line scanning imaging sensor is the same, the positions are close or connected, the rotatable platform can drive the point laser receiving and sending matrix and the line scanning imaging sensor to synchronously rotate, the synchronous scanning device further comprises a control device, the control device comprises a synchronous clock module, the synchronous clock module is connected to the 3D laser radar and the line scanning imaging sensor signal, the control device can synchronously send the signal to the 3D laser radar and the line scanning imaging sensor through a synchronous clock module, so that the 3D laser radar and the line scanning imaging sensor can synchronously scan, and therefore the obtained data has synchronism and facilitates the fusion of radar laser scanning data and line scanning image data.

This invention discloses a method for processing bipartite spindle eccentric axis of a small eccentricity and several eccentric centers, which comprise the following steps: a, making shaft blank, making all excircle of A benchmark meeting the required size, wherein the benchmark excircle of An is en, processing craft frame in the end of the axle; b, making excircle adjusting jacket whose eccentricity is e; c, setting the excircle adjusting jacket on craft frame, adjusting the eccentricity e; using the excircle adjusting jacket to drive the eccentric axis to rotate, turning the eccentric excircle of A1 benchmark to meet the required size; d, processing the benchmark excircle of A2íóA3 as the step c, adjusting the needed eccentric; e, removing the craft frame.

The invention provides a mounting clamp of an ultrasonic sensor. The mounting clamp comprises a mounting plate, positioning blocks which are arranged at the central line positions of the two ends of the mounting plate, bracket rails which are respectively arranged on four symmetrical mounting plate rails of the mounting plate, buckles which are respectively arranged on slide ways of the bracket rails and can adjust the height, a scale slide strip with two ends which are respectively fixed on the buckles, and a sensor bracket which is arranged on the scale slide strip and is used for mounting the ultrasonic sensor. The mounting clamp of the ultrasonic sensor disclosed by the invention is simple in structure and convenient to use; an ultrasonic sensor probe can be effectively mounted according to straight pipe sections with different apertures and accurate positions of clamping the ultrasonic sensor probe on the straight pipe sections can be guaranteed; and a mounting distance between the sensors can be visually read and the mounting distance between the sensors can also be adjusted according to requirements.

The invention discloses a test method and a detection device to detect the pressure received by the gudgeon journals on both ends of a sink roll, which detects the pressure received by the gudgeon journals on both ends of the sink roll through detection of the vibration signals on the left and right edge parts of a band steel. The steps to detect the pressure is to apply tensile force on the band steel to keep the band steel tensioned; to apply external force on the band steel to excite vibration of the band steel; to measure the vibration signal of the band steel with the device; lowpass filtration of the vibration signal in the step C and to analyze the frequency spectrum of the vibration signal in the step C to get the vibration frequency; to calculate the difference of the tension on both sides of the band steel according to the functional relationship of the tension of the band steel and the vibration frequency; to calculate the difference of the pressure received by the gudgeon journals on both ends of the sink roll according to the functional relationship of the pressure received by the gudgeon journals on both ends and the difference of the tension on both sides of the band steel. By adopting the method and the device, the pressure can be detected simply, conveniently and accurately; the pressure received by gudgeon journals on both ends of the sink roll can be detected quickly; the sink roll is ensured to be parallel with a top roller by adjusting the parallelism of the sink roll and the top roller according to the detection result so as to prevent the gudgeon journals of the sink roll from being abraded and seized, and even the shaft from being broken.

The invention discloses an air sac type jack comprising an upper top plate, a lower bottom plate, a rubber air sac and flanges; the lower bottom plate is connected with an external high-pressure air source through an air inlet pipe; two ends of the rubber air sac are respectively connected with the upper top plate and the lower bottom plate in a sealing way through the two flanges, and therefore, a sealed sac cavity is formed inside the rubber air sac; an air outlet is formed in the sac cavity; an air inlet passage is formed in the lower bottom plate; the air outlet communicates with the air inlet pipe through the air inlet passage; and the lower bottom plate is provided with a balance limiting device. The air inlet passage is arranged inside the lower bottom plate, so that the problem that the pressure bearing capacity is reduced because an air inlet device is arranged on the rubber air sac to result in nonuniform stress of the rubber air sac can be avoided. Therefore, the load which can be borne by the air sac type jack is large, and explosion hazards caused by rubber air sac perforation is not easily caused.

A manual knife sharpener has an angle control structure. The structure includes a guide member with a guide surface forming an angle with the grinding surface of the grinding component. When the blade is inserted between the grinding surface and the guide surface, the blade pushes against the guide surface, causing the guide surface to move in a direction perpendicular to the guide surface, so that the movement is lateral movement in a plane, and the guide does not rotate. Or twisted. In this way, no matter how far the guide is moved, the angle between the guide surface and the grinding surface remains unchanged.

The invention discloses an adjustable decorative moulding for a glass curtain wall. The adjustable decorative moulding comprises an arc-shaped pressing plate, an arc-shaped connection plate and a decorative moulding plate. The arc-shaped pressing plate is fixed to an aluminum keel and pressed on the front face of the seam joint of a hollow glass plate. The arc-shaped connection plate is connected to the arc-shaped pressing plate. The arc-shaped pressing plate and the arc-shaped connection plate are connected in a tooth-type meshing mode. The decorative moulding plate is connected with the arc-shaped connection plate. The arc-shaped pressing plate and the arc-shaped connection plate are fixedly connected through a fastening bolt. According to the adjustable decorative moulding for the glass curtain wall, the decorative moulding plate is connected with the arc-shaped pressing plate through the arc-shaped connection plate, the arc-shaped connection plate and the arc-shaped pressing plate are connected in the tooth-type meshing mode, and rotation by any angle can be conducted, so that the angle between the decorative moulding plate and the arc-shaped pressing plate can be adjusted according to the inclined angle of the curtain wall outer fade, it is guaranteed that the decorative moulding of the curtain wall is kept parallel to the horizontal plane, the facade effect is guaranteed, the sunshading and energy-saving requirements and the like are met.

The invention provides a three-dimensional foot type and sole pressure integrated measuring instrument. The three-dimensional foot type and sole pressure integrated measuring instrument comprises a measuring table, a data line, a power line and a computer, wherein the measuring table comprises an objective table, 3D true feeling camera sets, a sole pressure measuring plate, an indicator lamp stripand a master control circuit board, wherein the 3D true feeling camera sets are symmetrically mounted on the objective table to acquire three-dimensional foot type data; the sole pressure measuring plate is embedded in the center of the objective table to acquire sole pressure distribution data; the computer receives data acquired by the measuring table through the data line, data are subjected to treatment such as storage, editing, computing and visualization by integrated testing analyzing software mounted on the computer, and visualized display and application outputting of three-dimensional foot type and sole pressure distribution data are realized. By the three-dimensional foot type and sole pressure integrated measuring instrument, foot morphology and kinematic mechanical parametersof a user are synchronously measured and are analyzed in a fused manner, meanwhile, self-calibration can be implemented, measurement is facilitated, and parameters are abundant.

The invention relates to a device to analyze an infrared thermal picture of a person under test. Currently, infrared thermal pictures can not be treated automatically after being inputted into a computer; the pictures that are provided can not fully reflect or predict the functional changes of the organs of the person under test; and the creativity of certain imaging technology leads to external or internal trauma to the patient. The device makes use of the picture of the person under test, inputs the picture into the computer, converts the picture into digital temperature picture, analyzes the converted digital temperature picture through an analyzing program, and compares the analysis result with the data bank of the computer to get the health state of the person under test. The method can detect diseases at early stage before the appearance of the symptoms, provides a plurality of set of data and information through thermal picture scanning, and gives a full estimation to the health state of the person under test. A converted three-dimensional hotspot picture or energy picture is direct and convenient to analyze and diagnose. The device changes the motion mode of an infrared video camera, and adopting the motion mode of directly moving up and down, the device avoids the occasion of false contour of the picture during the scanning process.

The invention discloses a data processing method and device, and a body building robot. The data processing method comprises steps of calculating heat consumption of a user within a predetermined time interval based on user motion data; predicting the heat consumption and the corresponding weight change of the user in a further predetermined time interval according to the heat consumption and the weight change of the user in the predetermined time interval; according to the obtained heat consumption of the user and the obtained weight change of the user, and the heat consumption and the weight change of the user obtained by prediction, determining whether the user completes the expected body building plane; and according to the determination result, correcting the assigned heat consumption of the user and the assigned weight change of the user in the predetermined time interval in the expected body building plane. The disclosed data processing method can timely adjust the body building plan of the user according to the obtained motion data of the user, so as to ensure the successful completion of the original body building plan.

The invention discloses a parallel four-linkage carrying device. The parallel four-linkage carrying device is composed of parallelogram hinge mechanisms, a drive force supply device, a power system, a cargo transmission mechanism and a cargo loading platform, wherein four linkages are connected end to end by virtue of short shaft linking, the first linkage and the fourth linkage are connected end to end by a public long shaft, and the first linkage and the fourth linkage are integrally and fixedly connected with the public long shaft to enable the two groups of parallelogram hinge mechanisms to form an integer; the public long shaft is driven by the power system to carry out swinging rotation to enable the two groups of parallelogram hinge mechanisms to synchronously act, thus realizing that the second linkage always keeps a horizontal state and lifts back and forth between a high position and a low position; the drive force supply device is installed between the second linkage and the fourth linkage, thus saving energy consumption; the cargo loading platform is installed on the second linkage; the cargo transmission mechanism is located on the public long shaft, and between the two groups of parallelogram hinge mechanisms.

The invention relates to a cannon pitching radius measuring method, and belongs to the technical field of measurement. An indirect measuring method is employed, and the cannon pitching radius measuring method relates to measurement of cannon size data and parameters needed for calculating the deviation angle that the gun bore line deviates the shooting plane. The artillery pitching radius measuring method comprises specific operations that a cannon to be tested travels into an assigned detection area; a cross curve is accurately pasted on the end face of the gun muzzle; a theodolite is erected right ahead the cannon; a steering gear box of the cannon is rotated until one side surface of the gun barrel can be observed in the theodolite; a total station is erected at one side, of the gun barrel, having marks; the pitching angle is in a range from 15 DEG to 20 DEG; and the pitching radius is obtained according to the measuring result. The cannon pitching radius measuring method provides parameters for cannon size data and deviation angle calculation. The measurement precision of the cannon pitching radius measuring method satisfies the usage requirement, and the cannon pitching radius measuring method can be operated conveniently.

The invention discloses a multi-line planetary traction and transmission type speed reducing bearing. An inner ring, an outer ring and rolling bodies of the speed reducing bearing form a planetary traction and transmission gear train jointly and serve as a sun gear, an outer ring and a planetary gear of the planetary traction and transmission gear train correspondingly. According to the planetary traction and transmission type speed reducing bearing, radial supporting of a shaft is achieved by means of the positive pressure between the contact surfaces of the inner ring, the rolling bodies and the outer ring, and movement and power are transmitted by means of the friction force between the contact surfaces of the inner ring, the rolling bodies and the outer ring. The speed reducing bearing integrates the speed reducing function and the bearing function, and at least two lines of rolling bodies are arranged in the axial direction. An intermediate planetary carrier is arranged between every two adjacent lines of rolling bodies, wherein wheel shafts of the two adjacent lines of rolling bodies are connected through the intermediate planetary carrier. The rolling bodies in every two adjacent lines are evenly arranged in a staggered mode in the circumferential direction. According to the speed reducing bearing, the multiple lines of rolling bodies rotate, so that the contact between the rolling bodies, the inner ring and the outer ring is uniform in the circumferential direction and the axial direction, an inner ring shaft can be well supported, and the contact stress of the rolling bodies in the working process can be reduced; meanwhile, the torsional rigidity of a shaft system of the rolling bodies is high so that the torsional deviation of the shaft system of the rolling bodies can be effectively reduced in the transmission process, the situation that a speed reducer is disturbed or gets stuck during the transmission work can be effectively avoided, and the transmission quality and efficiency are improved.

The invention mainly utilizes the advantages of the shooting measurement and laser ranging technology: high precision, simpleness and quickness to measure the relative pose change between two rigid bodies. The relative pose change measuring method based on eye-to-eye shooting measurement and laser ranging utilizes fixedly-connected cameras and laser range finders to form measuring units, wherein the two measuring units are respectively arranged on the respective rigid bodies, and can shoot the relative pose change between the rigid bodies through a mutual eye-to-eye shooting mode. The measuring method utilizes the mutual shooting mode of the measuring units to form a closed loop for the relative pose change measurement, so that the measurement precision for the relative pose change between the two rigid bodies can be effectively improved. The measuring method has no need for knowing about the coordinates of fixedly-connected markers in advance, and can resolve the relative deflection directly through the increment for image coordinates of two and more than two marker points, so that the measuring method is simple and efficient. The measuring method can be used for real-time measurement of the relative pose change between the rigid bodies, and has important theoretical research significance and is wide in the application prospect.

The invention relates to an automatic sorting device for cigarette boxes lack of cartons in cigarette logistics. The invention relates to the technical field of cigarette logistics delivery in tobacco industry. In particular, the device is used for sorting the cigarette boxes lack of cartons in the delivery process of cigarettes in the cigarette enterprises and is suitable for removing or dividing the cigarette boxes lack of cartons in the high-speed delivery and sorting process, and a bar code scanner does not scan the bar codes on the cigarette boxes lack of cartons. A carton-lacking detection instrument is mounted upstream a logistics delivery belt; a door frame bracket is mounted at downstream the logistics delivery belt; an electromagnetic valve is mounted on the door frame bracket; the bar code scanner is mounted at the upper part of the door frame bracket and opposite to the bar code of the cigarette box; a bar code information shielding mechanism is arranged between the cigarette box and the bar code scanner; a driving mechanism of the bar code information shielding mechanism is connected with the electromagnetic valve; and a driving signal input end of the electromagnetic valve is connected with a signal output end of the carton-lacking detection instrument. The device has the characteristics of simple structure, convenience for mounting and debugging, high sensitivity in information shielding, scanning, and opening, accurate sorting of the cigarette boxes lack of cartons and the like.

The invention relates to a center-of-mass measuring tool of an engine, belonging to the technical field of measurement of the engine. The invention is characterized in that the center-of-mass measuring tool comprises a flat plate, a bracket with two rollers which are connected by a shaft, a tooling lifting hook and a weighing tensioner, wherein the bracket with two rollers is positioned on the flat plate and is used for bearing a center-of-mass machine part to be measured; and the other side of the center-of-mass machine part to be measured is provided with the tooling lifting hook which is connected with the weighing tensioner. The center-of-mass measuring tool has the advantages of having simple structure and low fault rate, saving cost, labor and measuring time, being economical and practical and having accurate measurement and easy popularization.

The invention provides a light source automatic tracking type solar collecting device. The light source automatic tracking type solar collecting device can automatically track a sun light source, a solar cell panel can be irradiated by sun light vertically and continuously, and therefore the light energy conversion efficiency is improved. The light source automatic tracking type solar collecting device comprises a base, a solar cell panel base is movably connected to the base through a horizontal steering device and a dip angle pitching device, the solar cell panel is flatly laid on the solar cell panel base, a horizontal steering collecting pipe and a dip angle pitching collecting pipe which are perpendicular to the solar cell panel are arranged on one side of the solar cell panel base, and photoelectric sensors are arranged in the horizontal steering collecting pipe and the dip angle pitching collecting pipe. A control device is further included. The invention further provides a control method of the device.

The invention discloses a circuit board testing tool which comprises an L-shaped pedestal and a lower die plate. The lower die plate is provided with a positioning groove, and the bottom of the positioning groove is provided with a first probe group that is connected with detection points at the lower surface of the circuit board. An upper die plate is also included, the upper die plate is provided with a second probe group that is connected with detection points at the upper surface of the circuit board, a connecting rod and guide rods, and a vertical plate is provided with a handle which can drive the connecting rod to move up and down and guiding blocks which are in up-and-down sliding cooperation with the guide rod. During detection, the circuit board is placed in the positioning groove, the positioning groove can ensure that the detection points at the detection points at the lower surface of the circuit board are correctly connected with the upper ends of first probe group, the handle pushes the upper die plate to move downwardly, the second probe group on the upper die plate is correctly connected with the detection points at the upper surface of the circuit board, the detection points of the circuit board are rapidly and accurately connected with a circuit board detector via the tool, and the circuit board detection speed is greatly improved.

The invention relates to a stapler with a bookbinding scale. A left scale and a right scale are symmetrically arranged at long edge positions of two sides of the base of an existing stapler; when not in use at ordinary times, the left and right scales rotate to be stored in the left and right sides of the base; and when in use, the left scale rotates out for 90 degrees towards the left front along a rotating shaft, the right scale rotates out for 90 degrees towards the right front along the rotating shaft, the bookbinding scale of which the length is more than the width of the base is formed by the left and right scales together, the bookbinding scale slides back and forth on the base under the driving of a sliding block, bookbinding line calibrated scales printed on the base can provide accurate bookbinding line distances for a bookbinder, a left baffle plate on the left scale and a right baffle plate on the right scale can be used for blocking and aligning paper and also can ensure that the side edge of a paper bookbinding line is parallel to stapling nails, a left calibrated scale on the left scale can provide an accurate distance from the center point of each stapling nail to the upper edge of the paper for the bookbinder, and a right calibrated scale on the right scale can provide the accurate distance from the center point of each stapling nail to the lower edge of the paper for the bookbinder. By adopting the stapler disclosed by the invention, the problems that the existing stapler is lack of effective reference in bookbinding so as to cause that two or more stapling nails are not in the same bookbinding line, are not parallel to the bookbinding edges, and do not have equal distances, and the distances from the stapling nails to the upper and lower edges of a page cannot meet the bookbinding requirements can be solved.

The invention discloses a low clearance tunnel rigid overhead line system cantilever supporting device. The device comprises a supporting base (1) fixedly mounted on a tunnel wall, wherein the supporting base (1) is movably connected with a support frame (2); the support frame (2) is arranged slantly along a tunnel vault; the end of the support frame (2) is connected with an insulating part (3); the insulating part (3) is connected with an adjusting support (4); a suspension clamp (5) capable of moving on the adjusting support (4) for adjusting is arranged on the adjusting support (4). The support frame is slantly arranged along the tunnel vault, so that the whole set of device is arch-shaped, the mounting space of a low clearance tunnel can be met, the device also can reach or even be higher than the function of the conventional cantilever supporting device, the structure is simple, and the mounting technology is simplified.

The invention discloses a one-dimensional nanometer electrode material, and a preparation method and an application thereof. The one-dimensional nanometer electrode material comprises a silicon slice substrate, and a silicon nanowire array which stands on the silicon slice substrate, and also comprises silicon dioxide films and silicon nitride films; the silicon dioxide films are respectively coated at two ends of the surface of the silicon slice substrate; the silicon nitride films are deposited on the surfaces of corresponding silicon nitride films; the surface of the silicon slice substrate, which is not covered by the silicon dioxide films, forms the silicon nanowire array in an etching manner; and the total thicknesses of the silicon dioxide films and the silicon nitride films are 0.5-10 microns. An ionization structure built by the preparation method is low in ionization breakdown voltage in air, and is suitable for use of a daily portable apparatus.