212results about How to "Quick action" patented technology

The invention discloses a pipe end hoop welding and fixing device for an automobile pipe, and belongs to the field of automobile pipe end machining equipment. The device comprises a worktable, a pipe head positioning plate and clamps, wherein the pipe head positioning plate and the clamps are fixed to the worktable. The pipe head positioning plate is provided with a pipe limiting groove and a hoop limiting groove. The clamps comprise a hoop clamp, a lateral pushing pipe clamp and an annular hoop pipe clamp, wherein the hoop clamp can press a hoop arranged outside the automobile pipe in a sleeving mode to the interior of the hoop limiting groove; the lateral pushing pipe clamp is used for pushing the automobile pipe to the interior of the automobile pipe limiting groove to be pressed; the annular hoop clamp is used for clamping and positioning the automobile pipe. The positions of the three clamps are adjustable. The automobile pipe limiting groove and the hoop limiting groove form a step type annular groove. By means of the pipe end hoop welding and fixing device, the pipe end of the automobile pipe and the hoop can be precisely positioned, the pipe end and the hoop can not deviate in the machining process, clamping marks can not be generated on the automobile pipe, and the automobile pipe can not be damaged.

The invention discloses an intelligent robot with stamping and carrying functions. The intelligent robot comprises a base and a rear cover housing which is arranged above the base, wherein a mechanical arm is horizontally arranged on one side of the rear cover housing; a swing arm motion mechanism for driving the mechanical arm to axially rotate up and down is arranged in the base; a turning motion mechanism for driving the mechanical arm to axially rotate left and right and a vertical motion mechanism for driving the mechanism arm to move up and down are arranged in the rear cover housing; a horizontal moving mechanism is arranged on the mechanical arm; a rotary motion mechanism is fixedly connected with a telescopic screw nut of the horizontal moving mechanism; a rotary bracket driven by the rotary motion mechanism to rotate is connected with the rotary motion mechanism; and mechanical clamping equipment is arranged on the rotary bracket. The intelligent robot with the stamping and carrying functions can perform five-degree-of-freedom motion, is quick in action and convenient to operate, can not only reduce the labor intensity and improve the production efficiency, but also can greatly reduce the occurrence probability of industrial injury after replacing manual work, and is safe and reliable.

The invention discloses a sleep awakening system and a method, wherein the system comprises a sign parameter collecting module collecting sign parameter of human body; a time judging module judging whether the current time is the REM judging time; a REM judging module obtaining the sign parameter and judging whether human body is in REM stage according to the sign parameter while the time judging module judges the current time as the REM judging time; an awakening module awakening human body after pre-awakening time while the REM judging module judges the human body in the REM stage , urging human body to the REM stage in the pre-awakening time while the REM judging module judges the human body not in the REM stage and awakening human body after pre-awakening time; the REM judging time and the pre-awakening time in include from the REM judging time to the awakening time. The system and the method can awaken human body in REM stage.

The invention relates to a special purpose machine tool for mounting a piston copper bush. The machine tool comprises a lathe bed and a pre-positioning mechanism, wherein the pre-positioning mechanism is arranged in the middle of the lathe bed and slides along a longitudinal slide rail. A clamping mechanism is arranged above the pre-positioning mechanism, an angular positioning mechanism is arranged on one side of the longitudinal slide rail at the back of the lathe bed, and two sets of mechanisms which are used for mounting the piston copper bush by the machine tool are symmetrically arranged on both sides of the longitudinal slide rail in front of the lathe bed, wherein the two sets of the mechanisms which are used for mounting the piston copper bush by the machine tool can slide along a transverse slide rail. An electrical control system for controlling operations of various mechanisms is further arranged. The machine tool provided in the invention is applied in a technical field of manufacture of internal combustion engine components. The special purpose machine tool for mounting the piston copper bush provided in the invention has the following advantages of convenient adjusting and fast motion during use, and is capable of rapid installation of the copper bush. With the machine tool, precision of the mounting position of the copper bush is guaranteed. With installation of the piston copper bush by using the machine tool, yield can be improved by 50%, and efficiency of the machine tool is 3-5 times the efficiency of handwork or utilization of auxiliary tools to assistantly mounting the piston copper bush.

The invention relates to a full-automatic bag making and filling and sealing machine of a bag tail filling non-PVC (polyvinyl chloride) membrane transfusion soft bag, which belongs to the technical field of pharmacy packing machine. The full-automatic bag making and filling and sealing machine comprises a machine body which consists of a frame component (3), wherein a distribution box (1) is arranged at one side of the machine body, and a bag making machine and a filling and sealing machine are arranged on the upper part of the machine body. The machine is characterized in that a bag body transfer mechanism (12) is arranged between the bag making machine and the filling and sealing machine, a connector supply mechanism (17) and a preheating mechanism (6) are arranged at one side of the bag making machine, the bag making machine is provided with a made bag annular conveying component (8), the made bag annular conveying component is provided with a connector fixture, the filling and sealing machine is provided with an annular conveying belt, and the annular conveying belt is provided with a bag fixture (19). According to the invention, full-automatic production of the tail filling non-PVC membrane transfusion soft bag is realized through improving the bag, the working principle is simple, the structure is reliable, the operation is stable, the failure rate is low, the occupied space is small, and according to the characteristics of the soft bag, the production cost can be obviously reduced. The action of the machine is fast, and the production efficiency is high.

The invention relates to a quake-proof cradle for infants, comprising a cuboid external frame, an inner layer bed body, an arc-shaped protective cover, a rotating square frame, a triggering device and a transmission device. The cuboid external frame is welded into a cuboid framework by stainless steel tubes and the upper surface thereof is provided with a movable bearing beam capable of opening and closing; the central parts of the frameworks at the symmetrical surfaces of the cuboid external frame are fixedly provided with the bearing beams; two opposite sides of the rotating square frame are arranged on the bearing beams of the cuboid external frame through the bearings; two opposite sides of the inner layer bed body are arranged on the rotating square frame through the bearing; the mounting connection lines of the bearings on the bearing beams and the bearings on the rotating square frame are intersected vertically; the transmission device is arranged below the inner layer bed body; the wireless signals of a vibrating sensor can start a transmission system for closing the arc-shaped protective cover immediately; and the vibrating sensor in the triggering device is arranged at the bottom of the cuboid external frame. The quake-proof cradle for infants uses the self stable inertial system and the arc-shaped protective cover which is fast pop-out for temporarily and directionally protecting the infants from the earthquake disasters.

The invention discloses a hybrid high voltage direct current power transmission system suitable for wind power delivery. At the transmitting end of the power transmission system, a three-phase unlimited voltage source is connected with a conversion station of a rectification side, the conversion station of the rectification side comprises a conversion transformer and a modular multilevel converter(MMC) of a half-bridge MMC sub-module. The MMC of the conversion station of the rectification side is connected with a bipolar direct current line. The bipolar direct current line is connected with ahybrid high voltage direct current circuit breaker in series. The bipolar direct current line is connected with a conversion station of an inverter side. The conversion station of the inverter side comprises a conversion transformer and a line commutated converter (LCC). The conversion station of the inverter side is connected with a receiving end alternating current system. The receiving end alternating current system adopts a three-phase unlimited grid. The system can prevent the impact of alternating current bus overvoltage caused by direct current block on wind power accessing, and can solve the fault of the direct current side automatically.

Multiple anti-corrosive controllable expansion extrusion soil anchor, including anchorage segment, free-tensioned segment, outer anchor, grouting pipe, at least one power transmission member and more than one loading plates, the anchorage segment includes controllable expansion extrusion soil apparatus for geotechnical engineering use, which includes upper sleeve components, lower sleeve components and expansion extrusion barrel which is filled of cement-based slurry or cement-based slurry containing expansion agent inside. The construction method of the multiple anti-corrosive controllable expansion extrusion soil anchor includes inject the cement-based slurry or cement-based slurry containing expansion agent into the expansion extrusion barrel of deep anchor hole. The objective is to provide a multiple anti-corrosive controllable expansion extrusion soil anchor and construction method which is suitable for complicated, flaccidity, corrosivity stratum, being capable of repressing anchorage slurry loss and controlling expansion size of anchorage segment, high bearing capacity, good durability, low cost.

The invention discloses a multi-terminal flexible DC power line DC line protection method based on voltage pole waves. According to the method, voltage response characteristics of a fault line and a non-fault line at the line boundary during the DC line fault are analyzed, a wavelet transform tool is utilized to extract the transient voltage pole wave characteristic quantity, and internal and external fault identification criteria based on voltage pole wave amplitude characteristics are constructed; for lightning stroke interference, lightning stroke identification criteria for a voltage polewave high and low frequency energy ratio are established; according to the voltage pole wave amplitude relationship of the two-pole line, fault pole identification criteria are constructed. Compared with other protection principles, the method is advantaged in that the motion speed is relatively fast, influence of lightning stroke disturbance is avoided, anti-transition resistance capability is relatively strong, and sensitivity is high.

The automatic hydraulic premade box beam inner formwork system has the inner mold hinging with a pair of up corner mold and a lower corner mold, oil tank slanting upward connected between the top mold and the up corner mold, oil tank slanting downward connected between the top corner mold and the lower corner mold, bracket barricaded along the box beam at the center of the cavity bottom surrounded by inner molds supporting up steel track that has translation cart along it with the cart composed of walking wheel, frame, supporting base beam fastened on the frame, frame of the cart extending outside of the inner mold plate with hydraulic pump station and operation platform. It is simple, steel consumption effective, low in cost, improving inner space 25% than the traditional one.

The invention discloses a pilot protection method of a high-voltage direct current transmission line based on S transformation. The pilot protection method comprises: collecting voltage and current of a protection element connected with positive and negative electrodes of the direct current transmission line, and filtering the voltage and the current; extracting voltage and current mutation data within a set time after a fault, and carrying out S transformation on the mutation data to obtain a complex time-frequency S matrix of voltage and current signals; calculating S transformation phase angles of the voltage and current mutations at each sampling point and a mean of the phase angle difference thereof; establishing a protection criterion of the direct current transmission line, and identifying faults inside and outside the sample space based on the S transformation phase angles of the voltage and current mutations according to the protection criterion; if the fault is a fault inside the sample space, comparing the transient energy of S transformation zero frequency bands of the voltage mutations of the positive and negative electrodes via a rectifying side protection device to judge a fault pole. The pilot protection method disclosed by the invention does not need to synchronize data on both ends of the direct current transmission line and only requires an inversion side to transmit a fault direction identification result to the rectifying side.

The invention discloses a method utilizing independent component analysis and S transformation to detect photovoltaic system fault arcs under system process coupling conditions. According to the method, based on a photovoltaic system output current signal, a current independent main source signal is acquired through independent component analysis, after Fourier transformation of the signal, variance processing on the frequency information is carried out to acquire a first characteristic quantity, the current is processed through S transformation, and a second characteristic quantity is acquired through time and high frequency component integration of an acquired time frequency matrix. After comparing the characteristic quantity value with a corresponding set threshold, a weight coefficient is utilized to realize weighing of output determination results of the two characteristic quantity values on a decision layer, and real-time detection on the photovoltaic system fault arcs is accomplished. The method is advantaged in that through dynamic threshold comparison and weight coefficient weighing of the two decision results, essential difference of the photovoltaic system fault arcs generated in a system process can be obviously mined, the photovoltaic system fault arcs under the system process coupling conditions can be rapidly and accurately cut off, and safe and stable operation capability of the photovoltaic system is improved.

The invention discloses a high-voltage direct-current power transmission line non-unit protection method based on S transformation. Amplitude-frequency characteristic analysis on boundaries formed by smoothing reactors and direct-current filters at two ends of a high-voltage direct-current power transmission line shows that high / low frequency components of line-mode voltage component traveling wave signals can be attenuated to different extents when passing through boundaries of direct-current lines. The method comprises the following steps: accurately extracting specific frequency band components through S transformation, building protection judgment basis, and proposing an internal / external zone fault recognition method based on ratio differences of high / low frequency components in S transformation; comparing transient state energy sums of S transformation at different frequency bands in lightning stroke interference, lightning stroke faults and ordinary short circuit faults, and building S transformation energy ratio judgment basis for recognizing lightning stroke interference; and extracting S transformation zero frequency band transient state energy of transient state energy of voltage of two poles, and building ratio judgment basis, thereby accurately recognizing fault poles.

The inventive embodiment discloses a control system of a nuclear power generating unit and an automatic diagnostic method and a subsystem thereof. The method comprises the following steps that the equipment and / or system information of the nuclear power generating unit is obtained; the equipment and / or system information is calculated through a preset diagnosis logical formula to obtain the function state diagnosis result of the equipment and / or system; in accordance with the function state diagnosis result of the equipment and / or system, the operator needs to adopt corresponding operation measure aiming to the function state; the corresponding operation measure aiming to the function state adopted by the operator is displayed on a display device. The inventive embodiment is able to provide the operator with the function state diagnosis result of the equipment and / or system quickly and accurately, and is able to guide the operator to adopt the corresponding measure.

The invention relates to rotating arm type sorting equipment. The rotating arm type sorting equipment comprises a gear motor driving device, a rotating positioning control device, a rotating arm and a pushing device. According to the rotating arm type sorting equipment, objects to be sorted are conveyed to the position of a pushing plate of the pushing device through a conveying line; the sorting equipment is started; the driving device drives the rotating arm to rotate; the rotating arm rotates to drive the pushing device to perform circular motion and to be in contact with the objects; the pushing device pushes the objects and pushes the objects away from the conveying line to a sorting opening at a specified position; the rotating arm rotates for half a circle, stops moving, and waits for being sorted and pushed next time.

The invention relates to a safety protection air cushion of a lift, with reasonable structural design and fast motion, which solves problems existing when the existing lift is out of control and a safety device against falling is in failure and comprises a damping device assembled at the bottom of the car of the lift and a monitoring control circuit of a single chip thereof; technical points thereof comprises the following steps: the damping device adopts an air cushion with a gas generator and is fixed at the center-of-gravity position of the bottom of the car in a hiding mode; a speed sensor and a transmitting and receiving machine of a position sensor in the monitoring control circuit of the single chip are assembled at the top and the bottom of the car respectively and connected with a single chip circuit in series; the transmitting and receiving machine is connected with a relay in a gas generator circuit in series and a reflector of the position sensor is assembled at the setting position of a car rail at the opposite side of the transmitting and receiving machine; the air cushion can form landing buffering automatically at the instance of landing of the car when the lift is out of control, thus playing the role of protecting personal safety and reducing property loss.

The invention discloses an FTU-based distributed type feed line automation system allowable fault processing method and is suitable for a feed line network which needs to operate in an open- / closed-loop state and which comprises multiple power supplies, multiple branches and multiple breakers. The system is composed of feeder terminal units (FTUs), which are connected to all breakers of various feed lines, and a communication network. According to the method, fault location and isolation are performed through sending allowable signals between adjacent terminals. When a network topology or an operation mode is changed, the system only needs to change configuration of local terminals and then continue to operate. When communication is interrupted, the expanded fault location and the expanded isolation are achieved through expanded communication. So the feed line automation method by utilizing the adjacent FTU to send the allowable information improves reliability of feed line automation protection, and has better performance compared with an existing distributed type feed line automation scheme.

The invention relates to a marine haulage device and an emergency release method thereof, which belong to the technical field of marine machines. An upper roller clutch (3) is mounted on the output shaft of an upper roller-driving motor (5), a lower roller clutch (4) is mounted on the output shaft of a lower roller-driving motor (6), the output ends of the upper roller clutch (3) and the lower roller clutch (4) are respectively and fixedly connected with small gears (1), the control end of the upper roller clutch (3) is connected with an upper roller clutch controller (54), and the control end of the lower roller clutch (4) is connected with a lower roller clutch controller (64). The upper roller clutch (3) and the lower roller clutch (4) can be synchronously disengaged to carry out emergency release. The transmission torque of the clutches is low, action is quick, sensitivity is high, the clutches can be quickly engaged and disengaged, operation is flexible and reliable, and thereby the invention can fully meet the requirement of International and domestic emergency release action standards.

The invention relates to a yarn feeding control method of a circular-weft knitting machine. The yarn feeding control method of the circular-weft knitting machine is characterized in that the method includes the following steps that 1, yarn feeding machines of the circular-weft knitting machine are all provided with control chips and numbered, all control chips are connected with a host through a network formed by CAN communication buses, and each yarn feeding machine includes a machine body, a yarn transporting wheel and a clutch brake, wherein the yarn transporting wheel is arranged on the machine body, and the clutch brake is arranged in the machine body and used for controlling the yarn transporting wheel; 2, when yarn needs to be fed discontinuously, the host sends a motion command to the yarn feeding machine with a corresponding number in advance, after receiving the motion command, the yarn feeding machine with the corresponding number immediately draws the clutch brake, a clutch plate is drawn, brake coils obtain power at the same time, a brake pad is loosened, a brake is in a non-braking state, and the yarn feeding machine synchronously rotates to feed yarn; meanwhile, the brake coils of the yarn feeding machine corresponding to yarn which is temporarily out of service lose power, the clutch plate is separated, the yarn feeding machine loses rotary power, the brake coils lose power and draw the brake pad at the same time, the brake is in a braking state, and the yarn feeding machine stops feeding the yarn.

The invention discloses a self-adaptive controlled safe seat in a back row of an automobile and a control method. A seat body can rotate forwards and backwards around a rotating shaft; the lower part of each seat frame is arranged in a corresponding sliding groove and can move forwards in the corresponding sliding groove; an electromagnetic valve is mounted at the side part of each of the sliding grooves; an iron core of each of the electromagnetic valves can extend into a hole in the side surface of the corresponding seat frame to prevent the seat frame from moving forwards; a fixing plate which is not in contact with the sliding grooves is fixedly connected between the rear part of the left side seat frame and the rear part of the right side seat frame; the middle part of the fixing plate is fixedly connected with explosion cylinders in front-back arrangement; the front ends of the explosion cylinders are hinged to the lower end of a pull rod through a cylinder push rod; the upper end of the pull rod is hinged to the bottom surface of the rear part of the seat body, and the pull rod is a telescopic rod with expansion and contraction quantity; the front part of the bottom surface of the seat is hinged to the upper end of a top rod through a front part pin seat; and the lower end of the top rod is hinged to a bottom plate pin seat through the bottom plate pin seat. When the safe seat is under an initial condition, the top rod tilts from a rear upper part to a front lower part; and when being subjected to tensile force exceeding a predetermined intensity, the top rod can be broken, and a protecting condition can be automatically shifted according to the changes of the acceleration of the automobile.

The invention relates to a digitized intelligent long-distance remote-control water injection valve. The water injection valve comprise a control valve and a flowmeter which are connected in series with a water pipe, wherein the control valve is an electric flow regulating valve, the flowmeter is an electromagnetic type flowmeter, and the water injection valve also comprises a PID (piping and instruments diagram) controller and a telecommunication system; a data output end of the electromagnetic type flowmeter is connected with an input end of the PID controller, a control output end of the PID controller is connected with the electric flow regulating valve, and a wireless remote connection is established between the other interface of the PID controller and a control management centre through the telecommunication system; and the PID controller is connected with a display and an operating key. The water injection valve provided by the invention integrates the electric flow regulating valve, the electromagnetic type flow meter, the PID controller and the telecommunication system into a whole, can carry out remote data transmission and networked combination control, non-manpower automatic control water and report data entry are realized, the operating efficiency is improved, and errors caused by manual operation are avoided; and the water injection valve can be directly changed and handled on an original pipeline design and is convenient and rapid to install.

The invention discloses a protection starting auxiliary method for pilot current differential protection. A judgment condition is added on the basis of an existing current differential protection criterion condition when a high-resistance fault occurs, a current auxiliary starting criterion condition is further added, the influence of a PT broken line on a voltage auxiliary starting criterion and the influence of a CT broken line on a current auxiliary starting criterion are comprehensively considered, the refuse operation of a traditional high-resistance auxiliary starting component caused by insensitivity of voltage characteristic quantity is eliminated, higher reliability is achieved, and the fault can be enabled to be reliably removed by differential protection when a high-resistance grounding fault occurs in a high-voltage circuit of a power system.

The invention relates to a rapid tool changing mechanical arm with an electric drive pusher, belonging to the technical field of numerical control machine tool changing machine. The mechanical arm comprises a pedestal (13), a first linear guide rail pair (4), a first slide seat (2), a second linear guide rail pair (1), a second slide seat (10), a first electric drive pusher (5) arranged on the pedestal and with a displacement output terminal connected with a first slide seat and a second electric drive pusher (3) arranged on the first slide seat and with the displacement output terminal connected with the second slide seat. The second slide seat (10) is also provided with a swing arm support (11) and a third electric drive pusher (14), the swing arm support is provided with a swing arm (9), the tail end of the swing arm is provided with a tool-catching disk (6), the tool-catching disk (6) is connected with the output shaft of an electrical machine (7), a swing joint of the swing arm is provided with a gear (12), and the displacement output terminal of the third electric pusher is connected with a gear rack (8) matched with the gear. The invention features simple structure, high reliability, rapid and easily controlled motion.

The invention discloses a traffic officer open-air working platform which comprises a base, a bottom pillar, a support pillar and a monitoring device, wherein the monitoring device is placed at the upper end of the support pillar, the middle part of the support pillar is provided with a sun shade, and the lower end of the support pillar is attached to the upper end face of the bottom pillar; the bottom pillar is arranged above the base, and both the base and the bottom pillar are cylindrical; the left side wall and the right side wall of the base and bottom pillar are provided with arc blind doors, when the blind doors are closed, the blind doors form a hollow cylinder together with the main body of the base and the main body of the bottom pillar, both the base and the bottom pillar are hollow, and the base is communicated with the bottom pillar; and a power supply system is arranged in the base, an air conditioner is arranged in the base, a main power supply and a digital video recorder are placed on the air conditioner, a water dispenser and a sundry cabinet are placed on the right side of the air conditioner, and a microwave oven is placed on the sundry cabinet. The platform is applied to districts with complex public security, districts with traffic jam and hub districts, and can realize the functions of quick consultation, alarm receiving, alarm dispatching and the like.

Production of various Aeromonas hydrophila protective antigen monovalent and multivalent vitelline antibody and its usage in prevention of aquatic animal diseases are disclosed. It utilizes minor-protective antibody to make immune irritant composite egged hen and produce vitelline antibody product. It's safe, efficient, fast, has no harm and residue. It has more output, better immune-system development and functions of nutrients-added, disease-prevention and health-care.

The invention provides a longitudinal stripping machine for wires and cables, and belongs to the technical field of electrical equipment. The longitudinal stripping machine comprises a bracket, wherein a fixing cylinder is arranged on the bracket; a gap is formed in the fixing cylinder along the axial direction; slideways are formed in two sides of the gap; a cutting device is also arranged on the fixing cylinder and is connected to the fixing cylinder in a sliding manner; the cutting device comprises a hand shank; a pressure plate is arranged at the end part of the hand shank; a cutting knife is arranged in the middle of the edge of the pressure plate; the pressure plate is located in the fixing cylinder; two support rods are arranged in the middle of the hand shank; the bottom end of each support rod is connected with a slide block; each slide block moves in each slideway; multiple groups of fixing elements are arranged on the fixing cylinder; two fixing elements form a group; and the fixing elements are symmetrically arranged at two sides of the fixing cylinder. The longitudinal stripping machine is simple in structure, convenient to use, good in stability, high in safety, rapid in action, good in stripping effect, free of a manual operation, high in work efficiency and long in service lifetime; to-be-processed wires and cables are firmly fixed by the fixing elements; and automation is achieved.

The inventin provides a plated piston rod assembly polishing processing device which comprises loading and unloading caching stations, a ground track robot, cylindrical grinding machines, grinding machine caching stations and a detection platform. The two loading and unloading caching stations are distributed on the front side of the ground track robot; workpiece trays are arranged on the loadingand unloading caching stations; multiple V-shaped support blocks are arranged on the workpiece trays and can position piston rod assemblies; a ground track of the ground track robot is arranged alongthe left-and-right direction; a manipulator can move along the ground track; the two cylindrical grinding machines are located on the back side of the ground track robot; the two grinding machine caching stations are located on the front sides of the two cylindrical grinding machines; a first workpiece support frame and a second workpiece support frame are arranged on the grinding machine cachingstations; the detection platform is located between the two loading and unloading caching stations; a detection scanner is arranged on the detection platform and can be used for detecting faults of the surfaces of the piston rod assemblies; the detection scanner is connected with a controller; and the controller is connected with the ground track robot. The plated piston rod assembly polishing processing device provided by the invention has high processing efficiency.

The invention relates to an automatic material box loading device and belongs to the technical field of material box transporting devices. The device comprises an enclosing plate formed by mounting four rectangular plates end to end. The internal area of the enclosing plate is partitioned into a feeding position, a guide position and a positioning position from right to left in sequence. The device further comprises a bottom plate mounted at the bottom of the enclosing plate, a check mechanism used for supporting a material box, a push rod mechanism used for pushing the material box from the feeding position to the positioning position, and a guide positioning mechanism used for guiding, positioning and discharging the material box. By arranging the push rod mechanism and the guide positioning mechanism, the material box is stably conveyed to the positioning position, meanwhile, the material box can be discharged after being positioned, the whole process of guiding, positioning and discharging can be completed through a power portion only, the requirement for the precision of the power portion is lower, the time for adjusting multiple power for mutual cooperation after mounting iscompleted is saved, power is simplified, and the equipment cost is lowered.

Provided is a method by which contact holes can be formed without using a vacuum device. In this method, mask pillars 40 are formed by exposing and developing resist films at positions corresponding to contact hole forming areas on a source region 16 and a drain region 18 of a polycrystalline silicon film 14 and a gate electrode 34. Then an insulating layer 42 is formed by applying a liquid insulating material to the whole surface of a glass substrate 10 excluding the mask pillars 40. Thereafter, second contact holes 44 and first contact holes 28 are formed through the insulating layer 42 and a gate insulating film 26 by ashing the mask pillars 40.

The invention relates to a self-running apparatus of a pier-crossing suspension bracket. The self-running apparatus comprises self-running dollies and a suspension bracket that is suspended by the self-running dollies by steel wire ropes. The self-running dollies are provided with self-driven systems; the self-driven systems include rollers arranged at the bottoms of the self-running dollies and drive motors arranged inside the self-running dollies; and the drive motors are connected with the rollers by transmission mechanisms. The suspension bracket is suspended by at least two self-running dollies by using the steel wire ropes. The self-running dollies are provided with frame bodies and a plurality of stretchable telescopic arms arranged at the tops of the frame bodies; the front ends of the telescopic arms extend out of one sides of the frame bodies; fault detection sensors and automatic telescopic control apparatuses are arranged at the telescopic arms; and hooking parts are arranged at the front ends of the telescopic arms and the suspension bracket is suspended at the hooking parts by steel wire ropes. Besides, winding engines are arranged inside the frame bodies and control the suspension bracket to move up and down by the steel wire ropes. The self-running apparatus has the following beneficial effects: the structure is simple; the manufacturing cost is low; consumed time for pier crossing or pole crossing is short; the construction efficiency is improved; and the applicability and flexibility are high.