83results about How to "Function as a switch" patented technology

The invention discloses a color photoresist containing fluorescent dye. The color photoresist can be used in a color filter to form a color photoresist layer, wherein the fluorescent dye is dissolved in a solvent of the photoresist, and the fluorescent dye has a certain color and also can absorb ultraviolet light or emit light according to the wavelength of the color to be displayed so as to increase the brightness, and significantly improve the brightness and chromaticity of the color photoresist. The invention also discloses a transflective liquid crystal display device, wherein the color filter of the device contains the color photoresist.

A vacuum system for a supercharger engine is provided, which comprises an engine intake manifold and a vacuum booster connected with a first vacuum tube. The invention is characterized in that: a device for creating the vacuum degree, which comprises an one-way valve and a vacuum tank, is positioned on the pipeline between the engine intake manifold and the vacuum booster. The device can be arranged as a vacuum pump. The system also comprises a vacuum actuator for supercharger and a vacuum actuator control for a secondary air system. Because the vacuum pump is adopted for complementing the air and the vacuum tank stores the gas and is provided with a plurality of one-way valve, the invention is able to assure the flow of vacuum degree in fixed direction, ensure reverse sealing and realize the switching function. in addition, by controlling a plurality of electromagnetic valves and vacuum pump via ECU as well as utilizing the vacuum storage function of the vacuum tank, the engine and the vacuum control system of the invention can work more reliably.

The invention relates to a feedback-type pneumatic-control pressure stress cell culture device and is characterized in that a high-pressure gas storage tank is connected with a three-way pipe (a) through a switch, a pressure relief valve and a connecting pipe; the three-way pipe (a) is communicated with a lower connecting pipe and the connecting pipe respectively; a syringe is connected with a micro pressure pump; the connecting pipe is connected with a three-way pipe (b); the three-way pipe (b) is connected with a pipe, a pressure meter and the upper end of an aseptic filtration device respectively; the lower end of the aseptic filtration device is communicated with a needle; a rubber stopper is arranged on a measuring cylinder type glass container; an upper outer reinforcement plate is arranged on the rubber stopper; a lower outer reinforcement plate is arranged below the measuring cylinder type glass container; the needle passes through the rubber stopper and enters the inside of the measuring cylinder type glass container; and a cell culture dish is arranged at the bottom of the measuring cylinder type glass container. The invention solves the problems that a closed container is difficult to open or close and can not tolerate a higher pressure stress. With the smart combination of the micro pressure pump and the pressure stress cell culture device, the pressure stress cellculture device has a simple structure, is convenient to operate, has a reliable effect and is applied to biological scientific research institutions.

The invention relates to a hair-washing and massaging robot comprising a massaging hand, a connection base, a connecting rod and a control device, wherein one end of the connecting rod is fixedly connected with the massaging hand, and the other end of the connecting rod is fixed on the connection base. An intelligent control system is connected with an alarm, a display screen and a general packet radio service (GPRS) wireless communication module. When hands are not convenient to use, the robot can automatically wash hair, massage the head, facilitate life and achieve high automation control. The vibration of a finger-shaped structure can achieve the massaging function, and rubber fingers do not damage the scalp of people and have an insulating function. An infrared sensor can perform a function of a switch. When the infrared sensor does not detect an obstacle, a sprayer does not response and water is saved. By means of the intelligent control system, automatic warning can be achieved, a water inlet pipe can be controlled, and flow of shampoo can be controlled. By means of the GPRS wireless communication module, nursing staff can carry out remote monitoring and handle dangers at any time once the dangers happen.

The invention discloses a PiNiN structure thyristor laser capable of presenting thyristor electrical characteristics and laser optical characteristics and belongs to the field of semiconductor photoelectron. The laser comprises an N type electrode, an N type substrate, an N type buffer layer, a first N type high doping layer, a first undoped active region, a second N type high doping layer, a second undoped active region, a P type high doping layer, a P type contact layer and a P type electrode which are all sequentially stacked. High doping N layers, high doping P layers and undoped i layers are introduced into the thyristor laser, and the high-power and low-threshold laser optical characteristics can be obtained whole the thyristor electrical characteristics are obtained.

The invention provides a dish washing machine. Adjustment of a bowl basket in high position and low position is completed through the action among a triggering piece, a regulating sheet and a regulating bracket. The regulating bracket and the bowl basket can move synchronously; the regulating bracket is connected with the triggering piece; the triggering piece achieves the switch effect; the regulating sheet is self-fixed; when the bowl basket is in the high position, the triggering piece abuts against the limiting end of the regulating sheet; when the bowl basket needs to be descended from the high position to the low position, the triggering piece only needs to rotate and the triggering piece is separated from the limiting end at the moment; and the bowl basket is at the relatively highposition, the bowl basket can drive the regulating bracket and the triggering piece under the action of the own gravity to fall at the moment. The limiting end of the regulating sheet is stilled embedded in a sliding groove, the up-and-down movement of the regulating bracket can be maintained stably, and the motion stability of the bowl basket is improved. Meanwhile, the regulating bracket is convenient to manufacture, and the sliding groove is formed in the regulating bracket, so that the effect of stabilizing the regulating sheet can be achieved.

The invention relates to the field of elevators, in particular to an elevator door lock switch. The elevator door lock switch comprises a switch bottom box, a main contact device, a secondary contact device and a circuit system, wherein the secondary contact device is connected with the circuit system; one side of the switch bottom box is provided with a mounting hole, the surface of the switch bottom box is covered by a cover plate, and the switch bottom box is provided with a rotating rod connecting assembly; and the rotating rod connecting assembly comprises a bolt pin and a rotating shaft which are mutually rotationally connected, the bolt pin passes through the mounting hole, the rotating shaft is rotationally arranged on the switch bottom box, the rotating shaft is connected with a telescopic device for recovering the position of the rotating shaft, a metal contact sheet connected with the main contact device and a safety device for protecting the safety are arranged on the boltpin, and the rotating shaft passes through the cover plate and is connected with a rocker arm assembly. The elevator door lock switch has the advantages that: the switch can play a role of a switch of a safety door lock under the conditions of simultaneous mechanical and electric control and simultaneous action, and the switch is safer and more reliable.

The invention relates to the technical field of computer keyboards, and especially relates to a notebook computer keyboard without a bottom board. The notebook computer keyboard without a bottom board is characterized in that the notebook computer keyboard is only composed of an integrated key cap formed by flexible glue and hard pieces, a notebook computer upper cover with a square bracket, a printed circuit film arranged under the integrated key cap, and a notebook computer bottom cover under the film. The integrated key cap formed by the flexible glue and the hard pieces is composed of several adjacent flexible glue key surfaces, the hard pieces pasted on the flexible glue key surfaces, a flexible glue pedestal, a flexible glue support body connecting the flexible glue pedestal with the flexible glue key surfaces, and flexible glue convex elastic switch bodies which extend downwards from the flexible glue key surfaces and penetrate through holes the hard pieces and are connected with the bottom surfaces of the flexible glue key surfaces into one body. The integrated key cap is an integrated key formed by the flexible glue and the hard pieces in the same mold by means of one-step injection molding. The notebook computer keyboard has less parts, and is low in cost and simple to assemble, and is ultrathin and ultralight, and meets today's market demand.

The invention relates to a switch, in particular to a proximity switch. The proximity switch is characterized by consisting of a capacitance bridge detection circuit, a diode bridge rectifier and a switch amplifying circuit which are connected in a matching way, wherein the capacitance bridge detection circuit consists of capacitors C1-C4; the diode bridge rectifier consists of diodes VD1-VD4; the switch amplifying circuit consists of transistors VT1-VT3, a voltage stabilizing diode VD5, a capacitor C5 and a relay K; the input end of the capacitance bridge detection circuit is connected with 220V commercial power, and the output end of the capacitance bridge detection circuit is connected with the input end of the diode bridge rectifier; the output end of the diode bridge rectifier is connected with the switch amplifying circuit; and the two ends of the input end of the diode bridge rectifier are connected with a metal sheet A and a metal sheet B respectively. The proximity switch can be used be applied to burglary prevention alarm, automatic notification, automatic protection and the like, runs stably, is prevented from being interfered easily and performing error actions, and has low production cost.

The invention discloses a switch gear of a small-sized electronic product. The switch gear comprises a battery box, a battery and a toggle button, wherein the battery is arranged in the battery box; a fixed conductive sheet and an elastic element are arranged at one side which is close to a battery cathode; the fixed conductive sheet is connected with the battery cathode through the elastic element and the fixed conductive sheet is an output end of a power supply cathode; a notch is arranged at one side of the battery box, which is close to a battery anode; a movable conductive sheet is arranged outside the battery box and one end of the movable conductive sheet is a fixed end and is used as an output end of a power supply anode; the other end of the movable conductive sheet is a movable end and is provided with a convex contact; the front part of the toggle button is provided with a clamping groove or is wedge-shaped; by toggling the movable conductive sheet by the toggle button, the convex contact on the movable conductive sheet is connected or disconnected with the battery anode through the notch on the battery box. The switch gear of the small-sized electronic product, provided by the invention, has the advantages of saving a power supply switch of the electronic product, reducing use quantity of elements, reducing manufacturing flows, reducing manufacturing cost, and assuring that the battery is not consumed when the electronic product is not used.

The invention discloses a control circuit based on prolonging service lives of multiple electrochemical sensors. The control circuit comprises four transistors and four metal oxide semiconductor (MOS) switches. Five power supplies are arranged in the circuit; a power supply SVCC is supplied by a power supply circuit; a power supply SVCC-1, a power supply SVCC-2, a power supply SVCC-3 and a power supply SVCC-4 are used for providing voltage for the sensors and are connected onto four power wires of four sensors; base electrodes of the transistors are respectively connected onto four general input / output (I / O) ports of a microprogrammed control unit (MCU) through resistors; collector electrodes of the transistors are connected to second pins or fourth pins of the MOS switches SI9947DY; the emitting electrodes of the transistors are grounded; third pins of the MOS switches are connected onto the power supply SVCC; fifth pins and sixth pins or seventh pins and eighth pins of the MOS switches are connected to power ports of the sensors; and the power supply SVCC-1, the power supply SVCC-2, the power supply SVCC-3 and the power supply SVCC-4 are connected onto the respective power wires of the four sensors. The control circuit disclosed by the invention is simple in structure; the sensors are controlled by utilizing the general purpose input / output (GPIO) ports of the MCU to power up all the sensors periodically, therefore, the goal of prolonging the service lives of the electrochemical sensors is achieved.

A vacuum system for a supercharger engine is provided, which comprises an engine intake manifold and a vacuum booster connected with a first vacuum tube. The invention is characterized in that: a device for creating the vacuum degree, which comprises an one-way valve and a vacuum tank, is positioned on the pipeline between the engine intake manifold and the vacuum booster. The device can be arranged as a vacuum pump. The system also comprises a vacuum actuator for supercharger and a vacuum actuator control for a secondary air system. Because the vacuum pump is adopted for complementing the air and the vacuum tank stores the gas and is provided with a plurality of one-way valve, the invention is able to assure the flow of vacuum degree in fixed direction, ensure reverse sealing and realizethe switching function. in addition, by controlling a plurality of electromagnetic valves and vacuum pump via ECU as well as utilizing the vacuum storage function of the vacuum tank, the engine and the vacuum control system of the invention can work more reliably.

The invention discloses an automatic feeding device for a four-column hydraulic column system, which comprises a power driving part, an electric control part and a mechanical execution part, wherein the power driving part is in driving connection with the mechanical execution part by a pipe, and the electric control part is in electric signal connection with the pipe by a wire. The device has simple structure and convenient operation, fully lowers labor intensity of workers, ensures life safety of the workers, saves raw materials, fully improves production efficiency and enterprise efficiency and has extremely strong practicability and popularization value.

The invention discloses a stop motion animation shooting teaching device which comprises a rotating ring frame, a rotating shaft, a sliding mechanism, a connecting handle and a sliding rod. One end of the rotating shaft is fixedly installed on a ceiling, the rotating ring frame is pivoted to the bottom of the rotating shaft, a plurality of keels are fixedly installed in the rotating ring frame around a center line, a notch is formed in the rotating ring frame around the axis, the sliding mechanism is arranged in the notch in a sliding fit mode, a first fixing piece is pivoted to the bottom of a fixing block, one end of the connecting handle is hinged to the bottom of the first fixing piece, a second fixing piece is hinged to the bottom of the connecting handle, a bottom plate is pivoted to the bottom of the second fixing piece, the sliding rod is fixedly installed at the bottom of the bottom plate, a sliding rod sliding block is arranged on the sliding rod in a sliding fit mode, and a camera fixing mechanism is fixedly installed on one side of the sliding rod sliding block. According to the device, a rack is meshed with a rack gear, a first threaded rod and a second threaded rod are driven through rotation of a belt to tighten the hinged position, the connecting handle cannot move, and therefore the purpose of stability is achieved.

The invention relates to dust removal and heat dissipation type navigation equipment for an automobile. The equipment comprises a main body, a display screen and a fixing clamp, wherein the main bodyis in a cuboid shape; the display screen is arranged on one side of the main body; the fixing clamp is arranged on the other side of the main body; a navigation system is arranged in the main body; aheat dissipation mechanism and a dust removal mechanism are arranged in the main body; the heat dissipation mechanism comprises a moving plate, four moving assemblies and at least two sealing rods; each moving assembly comprises a fixed pipe, a heat conduction disc, a moving disc, a connecting wire, a fixed pulley, a mounting hole and a reset unit; and the dust removal mechanism comprises a nozzle, a ventilation pipe, a through hole and an auxiliary assembly; and the ventilation pipe is parallel to the sealing rods. The equipment achieves the heat dissipation function through the heat dissipation mechanism, and achieves the dust removal function through the dust removal mechanism.

An anti-toppling control switch comprises an angle control box, an upper conducting ring, a lower conducting ring and a conducting ball, wherein the angle control box is used for controlling an inclination angle and comprises an upper shell and a lower shell, a containing cavity is formed by the upper shell and the lower shell together, and the lower shell comprises a ring-shaped sloped sidewall; the upper conducting ring is arranged on the inner wall of the upper shell and close to an upper opening; the upper conducting ring is provided with an upper externally connected conducting electrode used for being electrically connected with a conducting wire; the lower conducting ring is arranged on the sloped sidewall of the lower shell and close to a lower opening, the lower conducting ring and the upper conducting ring are arranged oppositely in a spaced mode, and the lower conducting ring is provided with a lower externally connected conducting electrode used for being electrically connected with the conducting wire; the conducting ball is contained in the containing cavity and can roll in the lower shell, and the conducting ball can roll to a position between the upper conducting ring and the lower conducting ring along the sloped sidewall and makes the upper conducting ring and the lower conducting ring be electrically connected. The anti-toppling control switch can play a toppling warning switching role and is suitable for a lamp. The invention further provides an anti-toppling warning device and the movable lamp provided with the anti-toppling warning device.

The invention discloses an evaporator with an absorption type core filled with carbon fibers or materials with high water absorbability. The evaporator comprises an evaporator outer tube, an ammonia tube, a carbon fiber or high-water-absorbability material layer and a pure helium tube, the carbon fiber or high-water-absorbability material layer is arranged in the inner wall of the evaporator outer tube, and the liquid ammonia tube and the pure helium tube are disposed in the evaporator outer tube. The materials with high water absorbability are cotton fabrics or polyvinyl alcohol fibers. Compared with the prior art, the evaporator has the advantages that 1), liquid ammonia can be prevented from quickly flowing in the tube, and flow rate can be controlled; and 2), the carbon fibers can absorb and store the liquid before the liquid is evaporated, evaporation density is improved, lower temperature level can be obtained, higher heat transfer temperature difference in a box can be obtained, refrigerating capacity is utilized more effectively, accordingly, efficiency is enhanced, and energy consumption is saved.

The invention discloses a flow control switch which comprises a fluid valve. The fluid valve at least comprises a valve body and a valve seat, wherein the valve seat is arranged in the valve body; the valve body is provided with two connectors used for communicating with fluid pipelines, the valve seat is fixed in the valve body and is arranged between the two connectors in the valve body, the valve seat is provided with a fluid through hole. The flow control switch is characterized in that a driving diaphragm capsule with a closed cavity is fixed on the valve body, an elastic element I is arranged on the diaphragm capsule and can drive a diaphragm on the diaphragm capsule to rise and fall according to the change of pressure inside the diaphragm capsule so as to open or close the fluid valve, and the elastic element I and the fluid through-hole on the valve seat are arranged face to face. According to the invention, the driving diaphragm capsule is arranged and can drive the diaphragmto rise and fall because of the pressure change (or pressure change in the diaphragm capsule caused by the temperature change), thus driving a valve plug to press or separate from the valve seat to complete on / off operation. The flow control switch has a simple structure, action reliability, small volume and low cost.

The invention relates to a nozzle structure used in an internal-combustion motor tail gas treatment device. The nozzle structure provided by the invention comprises a nozzle and a nozzle flow guider, wherein the tail end of the nozzle is provided with the nozzle flow guider. The nozzle structure provided by the invention has the advantages that the tail gas of an engine or other foreign matters can be prevented from entering the nozzle, also obstruction matters in the nozzle or the outlet of the nozzle can be removed, and also the spraying is ensured to be more reliable.

The invention discloses a viaduct guardrail rotary cleaning machine and a manufacturing and using method thereof. The viaduct guardrail rotary cleaning machine comprises a main body, a first water guide pipe, a control valve, an adjusting plate, a motor, a sprayer, rollers and a supporting block, wherein a bottom plate is arranged at the bottom of the main body, the first water guide pipe is connected with the upper portion of a water tank, the right side of the first water guide pipe is connected with a water pump, and the sprayer is arranged on one side of the adjusting plate; the rollers are arranged at the bottom of the main body, a first clamping groove is formed in the left side of each roller, a telescopic rod is arranged in a support, and a first fixing hole is formed in one side of the telescopic rod; a second fixing hole is formed below the first fixing hole, and the supporting block is connected with the bottom of the telescopic rod. According to the cleaning machine used for viaduct guardrail cleaning and capable of conveniently adjusting the spraying angle and the using method thereof, the control valve is arranged, and the water flow inside the water pump can be controlled; the function of a switch can be achieved by increasing the pressure so that the water flow can be conveniently controlled; after the water pump is connected with the sprayer, a bridge can be conveniently cleaned.

The invention relates to a subway automatic ticket vending machine. The subway automatic ticket vending machine comprises a cabinet, a payment device and a PLC (Programmable Logic Controller) respectively mounted on the cabinet and electrically connected to each other, and further comprises a first inclined rail, a guide rod, a sleeve, a first air cylinder, a second air cylinder and a push plate.Cross section of the first inclined rail is circular and the lower end opening edge of the first inclined rail has a vertical guide hole; the guide rod pass through and is slidably connected to the vertical guide hole; diameter of the sleeve is equal to a sum of length of the guide rod and the diameter of the first inclined rail; an end opening of the sleeve is disposed opposite to a lower end opening of the inclined rail and an edge top of the end opening is connected to a top of the guide rod; a first push rod of the first air cylinder is vertically upward disposed; the second air cylinder is horizontally fixed to the first push rod and the second push rod of the second air cylinder towards the the other end opening of the sleeve; the push plate is vertically fixed to the second push rodand the push plate is located in cylindrical cavity of the sleeve; the first air cylinder and the second air cylinder are electrically connected to the PLC.

The invention provides a thin film transistor and a manufacturing method thereof, a display panel and a display device. The thin film transistor comprises a first grid electrode, a source electrode and a drain electrode, which are arranged on a substrate and on the same layer, wherein a first gap is formed between the source electrode and the first grid electrode, and a second gap is formed between the drain electrode and the first grid electrode; a grid insulation layer covered on the first grid electrode; and a semiconductor layer covered on the source electrode, the grid insulation layer and the drain electrode and filling the first gap and the second gap. Therefore, the technological process of the bigrid thin film transistor is simplified, and product yield rate is improved.

The invention relates to the technical field of rail traffic, and discloses a gantry crane rail clamping device which is characterized in that a clamping block is movably sleeved with a sliding groove, a hydraulic control cavity communicated with a machine body is formed in the position, between a hydraulic cavity and a hydraulic hole, in the machine body, and a sliding block is movably sleeved with the hydraulic control cavity; a sleeve is fixedly installed at the position, close to the air guide hole, of the inner side of the hydraulic cavity, a one-way valve is fixedly installed in the air guide hole, an adjusting column is movably connected into the sleeve in a sleeved mode, a limiting groove is formed in the adjusting column in a cross shape, and a sliding rod is movably connected into the limiting groove in a sleeved mode. The stability and power-off self-locking of the rail clamping device are achieved through the arrangement of bottom rolling wheels, a sliding block and an electromagnet, meanwhile, a sleeve is arranged in a hydraulic cavity and connected with an adjusting column in a sleeving mode, and a limiting groove is formed in the adjusting column and connected with a sliding rod in a sleeving mode, so that it can be guaranteed that the rail clamping device still keeps stable due to friction influence in the working process.

The invention relates to the technical field of cleaning supplies, and provides a multifunctional movement toothbrush. The multifunctional movement toothbrush comprises a brush head plate, and one ormore movement brush heads are arranged on the upper side of the brush head plate and connected with the brush head plate through connection assemblies; each movement brush head comprises an elastic movement arm, ordinary bristles and trunk bristles are arranged on the movement arm, and the tops of the trunk bristles have an adsorption effect. By the adoption of the multifunctional movement toothbrush with a good cleaning effect, the bristles can move in multiple directions among brushed objects during brushing, so that the number of the movement directions of the brush heads relative to the brushed objects is increased, and brushing structures of the brushing heads are improved; the bristles include the ordinary bristles, the trunk bristles, short bristles, siphon bristles and sawtooth bristles and can have functions of jumping, transforming, non-electric lasting power, a suction disc and siphoning, and thus the multifunctional movement toothbrush has an effect of cleaning teeth comprehensively in multiple directions and accordingly has a good cleaning effect.

An infrared sensor reading circuit disclosed by the present invention comprises a first transistor, a second transistor, a sensor, an integrating capacitor and a hysteresis comparator. The source of the first transistor is connected with a power supply, the drain of the first transistor is connected with the first end of the sensor, and the grid of the first transistor is connected with the outputend of the hysteresis comparator. The source electrode of the second transistor is grounded, the drain electrode of the second transistor is connected with the first end of the sensor, and the grid electrode of the second transistor is connected with the output end of the hysteresis comparator. The second end of the sensor is respectively connected with the first end of the integrating capacitorand the input end of the hysteresis comparator, the first end of the integrating capacitor is connected with the input end of the hysteresis comparator, and the second end of the integrating capacitoris grounded. The first transistor and the second transistor play a switching role, the resistance is far less than that of the sensor, only the sensor consumes energy, and the energy utilization rateof the sensor is close to 100%, so that the energy utilization rate is improved. The invention further provides the infrared focal plane array with the above advantages.

The invention provides a shifting-type stepless limit guardrail opening and closing structure. The guardrail opening and closing structure comprises a hollow fixed sleeve which is provided with a guardrail installation insertion hole penetrating through the top and the bottom of the hollow fixed sleeve; a fixed seat is arranged at the outer side of the hollow fixed sleeve, a linear sliding slot extending to two ends is formed in the side face of the fixed seat, an extension line of the linear sliding slot penetrates through the hollow fixed sleeve, a sliding block is arranged in the linear sliding slot in a matched mode, and a clamping plate is arranged at the end, close to the hollow fixed sleeve, of the sliding block; and an opening is formed in the position, corresponding to the clamping plate, on the side wall of the hollow fixed sleeve, and the clamping plate moves in a straight line along with the sliding block to stretch into or retreat from the hollow fixed sleeve through the opening. According to the opening and closing structure, the clamping plate is made to slide leftwards to block the lower end of the opening of a guardrail frame, and the whole guardrail frame cannot be lifted up and then cannot rotate; and reversely, the clamping plate is made to slide rightwards to move away from the top of the lower end of the opening of the guardrail frame, then the guardrail frame can be lifted up and rotate, and the opening and closing functions through guardrail rotation are achieved.

The invention discloses a simple flow control switch. The flow control switch consists of a valve body, a valve seat and an elastomer, wherein two joints which are connected with an inlet and an outlet of a fluid are formed in the valve body; the valve seat is fixed in the valve body and is positioned between the two joints of the valve body; and the elastomer is fixed on the valve body and can open or seal the valve seat according to the undulatory motion of pressure change in the valve body. The flow control switch has the elastomer which can be retracted by the change of the pressure in a flow channel, so that the elastomer (or a valve core) and the valve seat are pressed tightly or separated from each other to play a role of opening / closing. The flow control switch has a simple structure, is small in size and low in cost, and acts reliably.

A manufacture method of a TFT (thin-film transistor) substrate comprises: providing a metal substrate, and forming a gate insulating layer on the metal substrate to obtain a first primary structure; depositing on the first primary structure to obtain graphene that includes a first graphene layer and a second graphene layer which are connected, wherein the second graphene layer and part of the first graphene layer form double graphene layers to serves as an active layer, and the double graphene layers are positioned on the gate insulating layer; forming an organic insulating layer on graphene;forming a bottom gate on the organic insulating layer to obtain a second primary structure; flipping the second primary structure so that the bottom gate is positioned as a lowermost layer and the metal substrate as an uppermost layer; etching the metal substrate to form a source, a top gate and a drain, wherein the source and the drain are connected with the first graphene layer, and contact resistance between the source and drain and the double graphene layers is decreased. The invention also provides a TFT substrate.

The invention relates to a subway automatic ticket vending machine. The subway automatic ticket vending machine comprises a cabinet, a payment device and a PLC (Programmable Logic Controller) respectively mounted on the cabinet and electrically connected to each other, and further comprises a first inclined rail, a guide rod, a sleeve, a first air cylinder, a second air cylinder and a push plate.Cross section of the first inclined rail is circular and the lower end opening edge of the first inclined rail has a vertical guide hole; the guide rod pass through and is slidably connected to the vertical guide hole; diameter of the sleeve is equal to a sum of length of the guide rod and the diameter of the first inclined rail; an end opening of the sleeve is disposed opposite to a lower end opening of the inclined rail and an edge top of the end opening is connected to a top of the guide rod; a first push rod of the first air cylinder is vertically upward disposed; the second air cylinder is horizontally fixed to the first push rod and the second push rod of the second air cylinder towards the the other end opening of the sleeve; the push plate is vertically fixed to the second push rodand the push plate is located in cylindrical cavity of the sleeve; the first air cylinder and the second air cylinder are electrically connected to the PLC.