373results about How to "Flexible position adjustment" patented technology

The invention relates to a three-dimensional point coordinate measuring method and a measuring apparatus thereof. According to the invention, the problems on the flexibility of the system and the measuring speed are solved; therefore, the field measurement and the measurement of points that are not easy to be measured can be allowed, and the manufacturing cost can be reduced. According to the scheme of the method, a camera coordinate system is established; three-dimensional coordinates of marking points are calibrated in a light pen coordinate system, wherein the marking points are fixed on a measuring probe; spatial three-dimensional coordinates of implementation measuring time of a set of fixed marking points on the measuring probe are calculated in the camera coordinate system, and three-dimensional coordinates of the set of fixed marking points on the measuring probe are also calculated in a measuring probe coordinate system; and a logical relation of the two coordinate systems of the implementation measuring time is established; a three-dimensional coordinate of a spherical point of a spherical measuring head is calibrated in the measuring probe coordinate system; based on the above results, when the measuring is carried out, a spherical measuring head in the front of the measuring probe is contacted with a measured point to obtain a measuring point, and a coordinate of the measuring point is calculated. The measuring apparatus comprises supports, cameras, a measuring probe, a matched computer and matched software. The apparatus has two cameras, which are fixed on supports. The spherical measuring head is fixed at the front of a T-shaped rod, and a set of marking points, which are in a T-shaped form, are fixed on the T-shaped rod. According to the invention, the system has good flexibility, and the measuring speed is fast; besides, the measurement of a measuring point that is not easy to be measured is also allowed, and the cost is low.

The invention discloses an extractor hood which comprises a support, a fan cover assembly and a fan assembly. The fan cover assembly is rotationally arranged on the support, a cooking fume cavity is defined in the fan cover assembly and provided with gas flow inlets and a gas flow outlet, and the gas flow inlets penetrate the wall face of the fan cover assembly. The fan assembly is arranged in the cooking fume cavity and provided with air inlets and an air outlet, the air inlets communicate with the gas flow inlets, and the air outlet communicates with the gas flow outlet. When the fan cover assembly rotates, the fan assembly rotates along with the fan cover assembly. According to the extractor hood, the positions of the air inlets and the air outlet of the fan assembly can be flexibly adjusted, and therefore the air inlet direction and the air outlet direction of gas flow can be adjusted according to needs, the cooking fume suction effect of the extractor hood is improved, gas flow discharged from the gas flow outlet is effectively prevented from influencing dining areas or dining persons, and the comfort of the dinning persons is improved.

The invention discloses an anti-corrosion and anti-explosion full-automatic multihead filling packaging line. The anti-corrosion and anti-explosion full-automatic multihead filling packaging line comprises a filling machine capable of conducting filling on bottles, a control system which is provided with a touch screen and adopts a PLC, a stopper sealing machine capable of installing a stopper in each bottle, a stopper installing detection photoelectric sensor, a stopper installing bottle blocking baffle, a stopper installing pneumatic mechanism, an outer cover installing machine capable of installing an outer cover on each bottle, an outer cover installing detection photoelectric sensor, an outer cover installing bottle blocking baffle, an outer cover installing pneumatic mechanism, a cover screwing machine capable of screwing the outer covers, a labeling machine, a labeling detection photoelectric sensor, an automatic inkjet printing machine and an inkjet printing detection photoelectric sensor. A transport mechanism runs through the whole anti-corrosion and anti-explosion full-automatic multihead filling packaging line and is responsible for transport of the bottles.

The invention relates to an electroencephalogram cap and a method for establishing a three-dimensional head-shaped electroencephalogram and a brain oxygen distribution map. The electroencephalogram cap comprises a cap body and a control circuit, wherein the cap body is formed by two ear part supporting bodies, a top supporting rod, a front part supporting rod and a back part supporting rod; two ends of the top, front and back part supporting rods are respectively arranged on the two ear part supporting bodies; the top, front and back part supporting rods span places over the head, in front of the head and behind the head from left to right; the top supporting rod is in a cross-connection with N electrode fixing rods; the electrode fixing rods, the front part supporting rods and the back part supporting rods are all equipped with brain electrodes; and the brain electrodes are connected with the control circuit. The method for establishing electroencephalogram and the brain oxygen distribution map forms a scalp surface three-dimensional model according to the electroencephalogram cap and position parameters of the scalp surface, and then obtains an electroencephalogram and a brain oxygen distribution map matched with a practical head shape. The electroencephalogram cap is convenient to use and can accurately collect signals and has strong anti-interference capability; and the electroencephalogram and the brain oxygen distribution map achieved according to the method has great authenticity.

The invention discloses a wireless charging control method for vehicles. The wireless charging control method comprises the following steps: (1) detecting whether a vehicle capable of being charged ison the spot, wherein the vehicle can be a hybrid vehicle or a battery-only electric vehicle; (2) determining whether the vehicle on the spot needs to be charged; (3) adjusting the position of a charging device to adapt to the vehicle and starting wireless charging; (4) stopping charging after completing the charging. The wireless charging control method for the vehicles of the invention relies ona wireless charging system, and is easy to implement, practical and convenient.

The invention relates to a printing machine, in particular to a multiple color press unit type gravure press which overcomes the defects of each assembly structure in the traditional gravure press. The gravure press comprises a board gravure press drying box, a direct pressing type on-off pressure material storing mechanism, a gravure press automatic transversal template adjusting mechanism, a reversing gear box, a scraper trolley and a horizontal swinging roller mechanism. On the whole, through the series technical improvement on each assembly of the multiple color press unit type gravure press, the invention has more reasonable design for the whole machine, enhances the production efficiency, saves the materials, more importantly, enhances the printing quality and improves the product quality.

The invention discloses a fixed-coil micro mechanical magnetic vibration energy collector basing on upconversion in the field of new energy technology. The collector comprises a vibration pickup station with low frequency, a resonance station with high frequency, a spacer and an induction coil; the vibration pickup station with low frequency comprises a coping, an upper-layer flat spring and a start-oscillation permanent magnet and / or a soft magnet. The upper-layer flat spring is fixed at the edge of the groove at the coping, the upper-layer flat spring comprises an upper-layer central platform and the surrounded upper-layer cantilever beam, the start-oscillation permanent magnet and / or the soft magnet are fixed on the upper-layer central platform; the resonance station with high frequency comprises frames, a lower-layer flat spring and a resonance permanent magnet, the lower-layer flat spring is fixed on the frames, the lower-layer flat spring comprises a lower-layer central platform and the surrounded lower-layer cantilever beam, and the resonance permanent magnet is fixed at the lower-layer central platform; the spacer is located between the resonance station with high frequency and the induction coil; the winding of the induction coil is fixed at the insulated underlay which is fixed under the spacer without movement. The conversion rate of the invention is high, and manufacture of batches and integration can be realized.

The invention discloses a wireless charging system of automobiles. The wireless charging system comprises a supporting platform arranged in a dent part (1) and a transmitting coil (14) arranged on thesupporting platform, wherein the supporting platform comprises a bottom-layer mobile platform (2), an upper-layer mobile platform (16) and a lifting mechanism connecting the bottom-layer mobile platform and the upper-layer mobile platform; a longitudinal translating mechanism is arranged on the bottom-layer mobile platform; a transverse translating mechanism is arranged on the upper-layer mobileplatform. The wireless charging system of the automobiles, disclosed by the invention, is simple in framework and easy to implement and is practical and convenient.

The invention discloses mechanical equipment manufacturing drilling equipment for machining metals. The mechanical equipment manufacturing drilling equipment for machining the metals comprises a baseplate. Two symmetrically-arranged vertical columns are fixedly connected to the upper end of the baseplate. The same machining table is fixedly connected to the upper ends of the two vertical columns. Two symmetrically-arranged fixing rods are fixedly connected to the upper end of the machining table. The same installing frame is fixedly connected to the upper ends of the two fixing rods. A drilling mechanism is arranged in the installing frame. A placement plate is fixedly connected to the upper end of the machining table. An installing groove is formed inside the machining table. A fixing mechanism is arranged in the installing groove. A protective mechanism is arranged at the upper end of the machining table. The mechanical equipment manufacturing drilling equipment for machining the metals can have a great fixing effect on both metal plates and metal pipes; then stability in the drilling process is guaranteed; moreover, equipment applicability is improved; and in addition, flying scraps generated in the drilling process can be blocked through a protective cover, and safety when drilling is conducted by the equipment is guaranteed.

The invention provides a lifting rolling platform for straighteners, which comprises a body, a pneumatic cylinder, a flange, a support beam, a positioning sleeve, a pressure head, a main oil cylinder, a support, a guiding rail, a guiding rod, a I-steel gasket, a rotating operating arm, an operating button box, rotating transmitting lines, a block and a foot switch. The bottom of the pneumatic cylinder is fixed onto the bottom of the body and the upper end of the pneumatic cylinder is fixedly connected with the support. The lower end of the flange is contacted with the support and the upper end of the flange supports the support beam. The positioning sleeve is fixed onto the body above the support beam and the support beam and the guiding rod is nested in the positioning sleeve. The steel I gasket is fixed on the body face above the support beam and the guiding rail is nested in the steel I gasket. The lifting rolling platform for the straighteners is capable of enhancing loading capability, pressing a product at multi-station, is flexible in position adjusting, and wide in application.

The invention relates to a moving coil micromechanical electromagnetic vibration energy collector based on upconversion belonging to the new energy technical field composed of an upper vibration pick-up platform, a shim and a lower vibration pick-up platform. The upper vibration pick-up platform comprises a head cover, an upper flat spring and a permanent magnet, the flat spring arranged on the pit edge of the head cover comprises an upper central platform with the permanent magnet on and upper cantilever beams around the central platform; the lower vibration pick-up platform comprises a base, a lower flat spring, an insulation, a micro-coil winding and a soft magnetic armature, the lower flat spring arranged on the pit edge of the base comprises a lower central platform and lower cantilever beams around the central platform, the insulation with micro-coil winding on covers the lower central platform, the soft magnetic armature is arranged in the central and / or inferior and / or peripheral of the micro-coil winding, the permanent magnet and micro-coil winding move along a straight line up and down relative to the head cover and base and / or inclination swing. The energy collector of the invention has advantages of high conversion efficiency and good frequency adaptability, is easy to realize batch production.

The invention discloses a multi-point pressurizing type hydraulic die forging method. The method comprises the steps of S1, adjusting the position and travel of each feeding pressing head to make ensure the feeding pressing head is at each corresponding hot spot position of a component and the travel of each feeding head is more than the density compact compression amount of the corresponding hot spot position; S2, pouring molten liquid under a temperature exceeding the temperature of liquid phase line of alloy into a die cavity or a pressing cavity which communicates with the die cavity; S2, fast closing the die, and applying a locking force to lock the die; S4, pressurizing the molten alloy to enable flowing and filling in the whole die cavity; S5, sequentially or synchronously applying a force to each hot spot position of the component and the pressing cavity to enable the molten alloy at the hot spot position to be fast solidified and subjected to rheological feeding until completely solidifying; S6, releasing all pressures, opening the die and removing the component. With the adoption of the method, the problem of liquid forging of large complex component can be effectively solved; the method has the advantages of being small in investment, free of shrinkage defect in the component, stable in product quality, and wide in applicable scope.

The invention relates to a handheld point-of-care testing (POCT) flow type gene analysis system. The system comprises a thermal gradient microreactor, a smart phone wide field fluorescence imaging device, a microfluid driver, an electronic control system, a power supply assembly and a light avoiding shell, wherein the thermal gradient microreactor is used for amplifying a sample, and a fluorescence detection area is formed on the upper surface of the thermal gradient microreactor; the smart phone wide field fluorescence imaging device is used for exciting the sample to generate fluorescent light and recording a fluorescence image; the microfluid driver is used for quantitatively extracting the sample into the thermal gradient microreactor; the electronic control system is respectively connected with the thermal gradient microreactor, the smart phone wide field fluorescence imaging device, the microfluid driver and the power supply assembly; the light avoiding shell comprises a heat insulation bottom plate; the thermal gradient microreactor, the microfluid driver, the power supply assembly and the electronic control system are arranged on the heat insulation bottom plate; the smart phone wide field fluorescence imaging device is arranged right above the thermal gradient microreactor. The handheld POCT flow type gene analysis system is simple in structure, small in volume, and convenient to operate, can be used in the field, is capable of enabling the detection process / results to be directly seen, is capable of realizing high-speed, high-sensitivity, diverse and real-time nucleic acid detection, and belongs to the technical field of in vitro molecular diagnosis.

The invention provides a Point Merge route structure-based approaching track dynamic optimization method in a busy terminal area. The method comprises steps of setting two inner side sequence arcs and two outer side sequence arcs in the terminal area and vertically classifying all aircrafts entering the inner side sequence arcs or the outer side sequence arcs according to different wake flow types; landing the aircrafts in the inner side sequence arcs and the outer side sequence arcs on two adjacent and parallel runways R after the aircrafts pass a converge position point; setting a sliding window with a fixed time length and a moving interval, determining the time length and the moving interval of the sliding window according to flight time of the aircrafts in the terminal area; and then, using an intelligent algorithm to optimize time for entering the terminal area for aircrafts of which parts of or full tracks are in the sliding window, the turning moments of the aircrafts on the sequence arcs and the flight speeds of the aircrafts. The beneficial effects are that positions of the approaching aircrafts can be adjusted more flexibly and an optimal sequence strategy can be achieved.

The invention relates to the technical field of tunnel engineering, and particularly relates to a test device and a test method for testing the waterproof performance of pipe segment joint sealing gaskets. The test device of the invention includes a sleeve with openings at both ends, and sealing covers installed at the two ends of the sleeve. The sleeve includes a plurality of sleeve blocks, and the sleeve blocks are spliced into an overall sleeve structure. Sealing gaskets are installed on the sleeve blocks on the two sides of a joint, and sealing gaskets are also arranged in the positions ofthe sleeve where the sealing covers are installed. The test device can simulate the actual condition that there are various types of joints after pipe segment splicing in actual projects. The experimental data of the waterproof performance of sealing gaskets is consistent with reality. Reliable reference and data support are provided for the construction of actual projects. The construction quality and the waterproof safety are ensured.

The invention relates to an intelligent air flotation device for sewage treatment which is convenient for collecting scum, including a sewage tank, an air flotation machine, a filter plate, an annular plate and three moving mechanisms. The mechanism includes a floating block, a notch, an opening, a vertical bar and a limit assembly. The moving mechanism includes a translation assembly and a lifting assembly. The lifting assembly includes a first motor, a first drive shaft, a wire reel, and a suspension wire. The intelligent air flotation device, which is convenient for collecting scum, realizes through the closing mechanism that after the filter plate is separated from the liquid surface, the floating blocks block the openings and notches, so that the scum can stop on the filter plate and realize solid-liquid separation. When separating, the filter plate moves upward, so that the equipment can treat different sewage volumes. Not only that, the three moving mechanisms drive the filter plate to lift and move, and control the inclination of the filter plate, so that the scum can flow from the opening on the ring plate. It can be dropped anywhere, which is convenient for people to collect, thus improving the practicability of the device.

The invention discloses a mechanical behavior device for simulating a cigarette ash dropping process by a person, which is characterized by comprising a cigarette clamping mechanism, a cigarette lighting device located right in front of the cigarette clamping mechanism, a cigarette striking device located at one side of the cigarette clamping mechanism and an optical sensing device located at the other side of the cigarette clamping mechanism. The device of the invention has the advantages that through researching on the mechanical behavior when a person drops the cigarette ash, high consistency between the mechanical behavior when a mechanical device drops the cigarette ash and the actual mechanical behavior can be ensured; and the optical sensing device monitors the surface temperature of a burning cone during a cigarette smoking process, the cigarette end dropping phenomenon is recorded in real time through temperature detection, and automation and intelligence of the striking device are improved.

The invention discloses an operation table for cutting a hardware pipe fitting. The table comprises a supporting platform, wherein the supporting platform is provided with a bracket and a lifting frame, the bracket is provided with a mounting plate, the mounting plate is provided with a rotating air cylinder, a rotating disc and fixed guide rails, the rotating air cylinder is connected with the rotating disc, and the fixed guide rails are distributed around the center of the rotating disc; the fixed guide rails are slidably connected with guide blocks, wherein the portion between each guide block and the rotating disc is connected with a corresponding transmission rod, each transmission rod is connected with the eccentric position of the rotating disc, and the fixed guide rails are provided with arc-shaped clamping plates; the center of the rotating disc is provided with a fixed rod, wherein one end of the fixed rod is provided with a positioning disc, elastic seats are distributed around the positioning disc, and each elastic seat is provided with a corresponding arc-shaped pressing plate; and the lifting frame is close to the positioning disc, wherein the top end of the lifting frame is provided with an arc-shaped supporting plate. The operation table for the cutting hardware pipe fitting has the advantages of being novel in structure, suitable for cutting operation of hardware pipe fittings of different pipe diameters, wide in applicable range, and stable and reliable in placement, and accordingly cutting quality can be improved.

The invention discloses a tray-free variable-diameter multi-connecting rod winding system. The system comprises a tray-free variable-diameter multi-connecting rod winding method and a tray-free variable-diameter multi-connecting rod winding device. The tray-free variable-diameter multi-connecting rod winding method includes the following step of (1) inputting spool data and winding data into a computer and setting the wire head starting position to return to zero. The tray-free variable-diameter multi-connecting rod winding device includes a machine table, a drive assembly and a winding assembly; the drive assembly and the winding assembly are both arranged on the machine table, and the winding assembly is in transmission connection with the drive assembly; and the winding assembly includes a winding spindle, a winding baffle and at least two reducing assemblies. According to the tray-free variable-diameter multi-connecting rod winding system, a wire feeding tension mechanism in the winding assembly is arranged to achieve automatic adjustment of the wire feeding position and keep the winding tension to be conveniently controlled; reducing mechanisms are arranged, so that coil innerdiameters are flexibly adjusted; and load bearing components are arranged, so that the coil stability is increased, ring unloading is facilitated, and the winding system has the high practicability.

The invention discloses a glass cutting machine which comprises a cutting plate; a slide rail is fixedly arranged on the cutting plate; clamping devices are symmetrically and movably arranged on the slide rail; an operating panel is arranged above glass; a guide rod is symmetrically provided with guide grooves; a fixing device comprises a buffer block; the buffer block is provided with a buffer groove; a limited block is fixedly connected with the buffer block; and an extruding plate is fixedly connected to one end, far from the buffer groove, of an extruding block, and is connected onto the limited block through an extruding spring. According to the glass cutting machine, the built-in clamping devices can ensure that the glass cannot deflect in the cutting process, a cutting knife can perform cutting according to the preset route in a guiding structure, so that the influence on the cutting precision caused by human errors is avoided, the positions of the glass and the cutting knife and the distance between the glass and the cutting knife are relatively fixed, mutual deflection is avoided, the cutting precision is improved, the action force of the cutting knife to the glass is uniform, and glass breakage due to non-uniform stress is avoided.

The invention discloses a horizontal joint four-axis robot, and relates to the technical field of robot equipment. The horizontal joint four-axis robot comprises a base, a vertical frame is fixedly arranged on the base, a lifting module is arranged on the vertical frame, and a fixing frame is arranged on the lifting module; the lifting module is used for driving the fixing frame to move up and down, the lower portion of the fixing frame is connected with a hollow large arm through a first joint piece, and the big arm is driven through a first power device to rotate by taking the first joint piece as the axis; the lower portion of the big arm is connected with a hollow small arm through a second joint piece, and the small arm is driven through a second power device to rotate by taking the second joint piece as the axis; and a tool frame driven through a third power device to rotate is arranged below the small arm, the tool frame is provided with a tool jig, and the first power device and the second power device are arranged on the fixing frame. According to the horizontal joint four-axis robot, a stepping type feeding and connecting table is arranged, so that the phenomenon that residues are generated due to working for a long time is avoided, the advancing distance of materials can be freely controlled, sampling is more convenient, the working efficiency is improved, and the fatigue degree of the personnel is reduced.

The invention provides a suction disc device with an ejection structure. The suction disc device comprises a base, a suction disc mechanism, an ejection mechanism, a hoisting mechanism and a limiting mechanism, wherein the ejection mechanism is fixedly connected to the suction disc mechanism; the hoisting mechanism drives the suction disc mechanism to do vertical movement; the limiting mechanism has a limiting effect on a route of the hoisting mechanism; the suction disc mechanism comprises a suction disc and a quick plug connector; a first through hole is formed in the end of the suction disc; the first through hole is communicated with the quick plug connector; a second through hole is further formed in the suction disc; the ejection mechanism comprises a push rod, an air cylinder seat and an ejection air cylinder; the ejection air cylinder and the suction disc are fixed on the air cylinder seat; the push rod is fixedly connected to a piston rod of the ejection air cylinder; and the push rod is located in the second through hole. When the suction disc device with the ejection structure, provided by the invention, is used for sucking, thin-sheet type objects are not bent and deformed; and influences of static electricity, friction and the like can also be overcome when the objects are put down and the objects can easily fall into an effective appointed region.

The invention relates to the technical field of battery production, and in particular relates to a method for producing soft pack batteries based on a measurable battery internal temperature device. The method for producing soft pack batteries based on the measurable battery internal temperature device takes a test component and a main battery body as a basic device, and is characterized by comprising the following steps of: assembling the test component by encapsulating a thermistor with a double-circuit board, carrying out a path test, and then carrying out surface insulation treatment and drying treatment; assembling a battery core package by encapsulating the test component with a double-core, or inserting the test component into a single core package, then baking, and carrying out a short-circuit test; and combining the core packages and then entering a shell, carrying out top side sealing according to the thickness of a bare battery core, then carrying out hot and cold pressure, testing temperature data numbers, namely, correspondingly leading to a number obtained after a lead is matched with the thermistor, and carrying out data linearized processing. The method provided by the invention has the advantages that the vertical and horizontal positions of the whole test component in the core package can be flexibly adjusted, and the temperature of positive and negative plates at different depths inside the battery can be flexibly tested according to needs.

The invention discloses a vertical gesture adjusting mechanism for vertical assembling of a large-diameter thin-wall part cylinder in the technical field of automatic assembling. The vertical gesture adjusting mechanism comprises a perpendicular moving part, a gesture adjusting supporting platform movably arranged on the perpendicular moving part and a base part fixedly arranged at the tail end of the perpendicular moving part. The periphery of the gesture adjusting supporting platform is in contact with the inner wall of the cylinder, a butt joint cylinder moves in the perpendicular direction and the space position and gesture of the butt joint cylinder are accurately adjusted through the gesture adjusting supporting platform. According to the vertical gesture adjusting mechanism for vertical assembling of the large-diameter thin-wall part cylinder, a perpendicular driving motor and a guide rail are used for driving a fixed platform of the gesture adjusting supporting platform so as to adjust the position of the whole gesture adjusting supporting platform in the perpendicular direction. A plurality of supporting parts which are arranged on a movable platform of the gesture adjusting supporting platform in the radial direction of the platform are used for supporting the cylinder. Position and gesture adjustment is conducted on the cylinder through a gesture adjusting mechanism of the gesture adjusting supporting platform and under the perpendicular driving of a perpendicular motor. The vertical gesture adjusting mechanism has the advantages of being compact in space arrangement, large in working range, flexible in gesture adjustment, simple in control manner and high in assembling precision and efficiency, and multiple segments of cylinders can be assembled continuously.

The invention discloses a support for ultrasonic flaw detection, wherein the support for ultrasonic flaw detection comprises an installation frame; the installation frame is internally provided with a sliding rail; the sliding rail is movably connected with a sliding block; the sliding block is movably connected with a plurality of elastic rods; the plurality of elastic rods are connected with a flaw detection device; the sliding block is provided with a driving motor; the driving motor is connected with the elastic rods; the installation frame is provided with the driving motor; the driving motor is connected with a driving rod; and the driving rod is connected with the sliding block. Through the mode, the support for ultrasonic flaw detection provided by the invention can flexibly regulate the position of the flaw detection trolley, is stable in structure, and is convenient to use.

The invention relates to a device for testing the performance of a semiconductor chip. The device comprises a bottom plate, an adjusting assembly, a probe assembly and a carrying disk, wherein the adjusting assembly and the carrying disk are arranged on a left side and a right side of the bottom plate respectively; the adjusting assembly comprises a rapid adjusting frame, a fine tuning adjusting frame, a mechanical arm and an angle shaft; the probe assembly comprises a limiting sleeve, an adjusting sleeve and a tungsten filament probe; the limiting sleeve is detachably connected with the angleshaft; the limiting sleeve is provided with a blind hole; the adjusting sleeve is arranged on the tungsten filament probe in a sleeve manner; the adjusting sleeve is inserted into the blind hole; thetungsten filament probe passes through the limiting sleeve; and a needle head of the tungsten filament probe is positioned below the limiting sleeve. In the device for testing the performance of thesemiconductor chip, a tungsten filament is taken as the probe, so that a large amount of repeated testing can be carried out, and a metal layer of the chip is protected. The extension lengths and distance of two tungsten filament probes can be controlled optionally, and minimum 50[mu]m-grade chip PAD testing can be realized. The device has the advantages of realization of a rapid testing function,easiness in operation, low cost and high operation efficiency.

The invention discloses an ultrasonic detector based design method for a water-logging probe water-spray coupling device. The method provided by the invnetion comprises the following steps of: step (1), measuring basic parameters of an ultrasonic probe including diameters and lengths of the front end, the middle end and the back end of a probe and frequency for emitting ultrasonic waves; step (2), determining parameters of a water inlet guide pipe, a fixing cover, a water mixing cavity shell, a flow guide ring, a water mixing cavity cover, the ultrasonic probe, a transition pipeline, a first pipeline, a second pipeline, a third pipeline and a fourth pipeline according to the basic parameters of the ultrasonic probe; and step (3), determining connecting and matching methods of the water inlet guide pipe, the fixing cover, the water mixing cavity shell, the flow guide ring, the water mixing cavity cover, the ultrasonic probe, the transition pipeline, the first pipeline, the second pipeline, the third pipeline and the fourth pipeline; establishing a three-dimensional model of a nozzle by a solidworks software and exporting a design paper. According to the invention, the method has the advantages of stable layer flow structure, simple nozzle, stable ultrasonic probe, economic and environmental-friendly performances.

The invention discloses a multifunctional file holder, belongs to the technical field of office supplies and overcome the defect that common file holders are inconvenient to use in the prior art. The multifunctional file holder structurally comprises a frame. Vertical partitions are arranged in the frame. A retaining board is arranged in the front of the frame. The multifunctional file holder is characterized in that a sliding bar is arranged on the retaining board, a slide button capable of sliding to and fro on the sliding bar is arranged at the front end of each partition, and a storage cell is fixed on the outer wall of the frame. The multifunctional file holder is simple in structure, convenient to use and convenient and practical, and the position of the partitions is flexible to regulate.