41results about How to "Change the voltage" patented technology

The disclosed display includes following components: sealed vacuum cavity composed of cathode glass faceplate, anode glass faceplate, and around glass surrounded frame; anode pole layer on the anode glass faceplate, and phosphor powder layer printed on anode pole layer; control grid in use for controlling electron emission of carbon Nano tube; cathode of carbon Nano tube and VMOS cathode structure printed on cathode glass faceplate; back wall structure and accessory element of getter. VMOS cathode structure is in use for adjusting current value in cathode pole layer, and further for adjusting voltage on cathode of carbon Nano tube in order to guarantee that carbon Nano tube can transmit a mass of electrons uniformly and stably. Advantages are: stable and reliable preparing procedure, simple technique, low cost, and simple structure.

The invention relates to the technical field of power distribution cabinets and particularly relates to a thermal expansion and cold contraction principle-based self-bouncing device for a power distribution cabinet. The device comprises a cabinet door, wherein a magnetic block is fixedly connected to the inner wall of the right side of the cabinet door, a cabinet body is movably connected to the right side of the cabinet door, and a piston groove is formed in the middle of the cabinet body, an inner wall of the piston groove is movably connected with a piston block, a left inner wall of the piston block is fixedly connected with a resistor, and the middle of the piston block is fixedly connected with an electromagnet. According to the self-bouncing device for the power distribution cabinetbased on the principle of thermal expansion and cold contraction, through cooperative use of the air groove and the sliding block, when the temperature in the power distribution cabinet is too high,air in the air groove is thermally expanded, the sliding block moves towards the left side at the moment, the electromagnet is powered off, and the piston block and the cabinet body move towards the left side under the acting force of the sliding block and the spring; and the cabinet door is automatically opened so that the effect of automatically opening the cabinet door during overheating is achieved, heat is timely discharged, and safety of the power distribution cabinet is improved.

The invention discloses a sewage well lid capable of changing hole diameter according to the rainwater flow, and relates to the technical field of well lids. The sewage well lid comprises a foundation; the middle of the foundation is movably connected with a well lid body, the middle of the well lid body is provided with a water storage tank, the middle of the water storage tank is movably connected with a floating block, a dielectric plate is fixedly connected to the middle of the floating block, a water leakage hole penetrating through and extending to the bottom of the well lid body is formed in the bottom of the water storage tank, and electrode plates are fixedly connected to the two sides, close to the water storage tank, of the inner wall of the well lid body. According to the sewage well lid capable of changing the hole diameter according to the rainwater flow, through cooperative use of an electromagnet and a magnetic block, when accumulated water is increased, the magnetism of the electromagnet is gradually increased, due to the fact that the magnetism of the inner side of the magnetic block is opposite to the magnetism of the outer side of the electromagnet, the magneticblock can drive a blocking block to move inwards under the magnetic attraction effect of the electromagnet; therefore, the diameter of a drainage hole is changed along with the accumulated water amount, the drainage amount is effectively changed, and the accumulated water problem is effectively solved.

The invention discloses an adhesive sticker conveying device capable of effectively preventing slipping and relates to the technical field of adhesive stickers. The adhesive sticker conveying device capable of effectively preventing slipping comprises a conveying roller, movable grooves are formed in the top and the bottom of the conveying roller, and first springs are fixedly connected to the positions, close to the outer side of the conveying roller, of the inner walls of the movable grooves. Sliding blocks movably connected with the inner walls of the movable grooves are fixedly connected to the inner sides of the first springs, dielectric plates are fixedly connected to the middles of the sliding blocks, and evenly-distributed balls are movably connected to the outer sides of the sliding blocks. According to the adhesive sticker conveying device capable of effectively preventing slipping, through cooperative use of piston blocks and a rubber ring, when the rotating speed of the conveying roller becomes larger and larger, the piston blocks can also move outwards under the action of magnetic force of electromagnets to extrude gas in a gas groove outwards, so that the rubber ringexpands, and the contact area between the conveying roller and an adhesive sticker is enlarged; and the friction force is effectively increased, so that the effect of effectively preventing slipping is achieved, and the conveying efficiency of the adhesive sticker is effectively improved.

The invention provides a brightness regulating circuit, which is used for synchronously regulating the brightness of a first light-emitting component and a second light-emitting component, and comprises a power supply voltage source connected with a pulse generator, wherein the pulse generator is used for outputting a modulation wave which comprises a wave crest and a wave trough; a variable resistor is arranged in the pulse generator, and the size of the variable resistor changes in the same direction of the width of wave crest; the pulse generator is connected with a base electrode of a triode; a collector electrode of the triode is connected with the power supply voltage source; an emitter of the triode is grounded; the collector electrode of the triode acquires an out-phasing modulation wave; the pulse generator is also connected with one end of a first integral circuit, while the other end of the first integral circuit is connected with an anode of the first light-emitting component; and the collector electrode of the triode is connected with one end of a second integral circuit, while the other end of the second integral circuit is connected with an anode of the second light-emitting component. Through the regulation of the variable resistor, the brightness of different light-emitting components can reach balance.

The invention relates to a stall protection device for concrete stirring equipment, and relates to the technical field of concrete. The stall protection device for the concrete stirring equipment comprises a shell, wherein a fixed seat is fixedly connected to the bottom of the shell; a circular ring is arranged in the middle of the fixed seat; uniformly distributed rotating blocks are movably connected to the inner wall of the circular ring; electromagnets are fixedly connected to the inner walls of the rotating blocks; damping holes are formed in the inner walls of the rotating blocks; stirring rods penetrating through the fixed seat are fixedly connected to the inner sides of the rotating blocks; and two symmetrical sliding grooves are formed in the inner wall of each stirring rod. According to the stall protection device for the concrete mixing equipment, through cooperative use of the electromagnets and the rotating blocks, when the rotating speed of the stirring device is too high, the electromagnets are in a power-on state at the moment, the viscosity of magnetorheological fluid in the circular ring is increased at the moment, and the magnetorheological fluid in the damping holes is difficult to flow at the moment, so that the rotating speed of the rotating blocks is effectively reduced, the rotating speed of the stirring rods is further reduced, stable stirring of the stirring device is guaranteed, and the uniform mixing degree of concrete is improved.

The invention relates to the technical field of chemical pipelines, and discloses a flange for a leakage-proof chemical pipeline. The flange comprises a first flange plate and a second flange plate, wherein a first sliding groove is formed in the inner wall of the first flange plate, a sliding block is connected to the inner wall of the first sliding groove in a sliding mode, a sliding rod is fixedly connected to the front surface of the sliding block, a magnetic block is fixedly connected to the inner wall of the sliding rod, a spring is fixedly connected to the top of the sliding rod, an electromagnet is fixedly connected to the top of the spring, a clamping plate is fixedly connected to the bottom of the first flange plate, and a dielectric plate is fixedly connected to the inner wall of the clamping plate. According to the flange for the leakage-proof chemical pipeline, the voltage in a circuit is changed through the dielectric plate, a positive plate and a negative plate, so that the working state of a piezoresistor is changed; and the sliding rod is pushed to move through repulsive force formed between the electromagnet and the magnetic block, and the sliding rod is embedded with a first clamping groove, so that the effect of preventing leakage caused by looseness of the flange plates is achieved.

The invention discloses a control device for automatically controlling water storage of an irrigation device, and relates to the technical field of irrigation. The control device involves a water tank, a water groove is formed in the top of the water tank, a floating block is movably connected with the middle of the water groove, a first magnetic block is fixedly connected with the middle of the floating block, a liquid cavity is formed in the inner wall of the bottom of the water tank, a spring is fixedly connected with the top of the liquid cavity, a piston block is fixedly connected with the bottom of the spring, a second magnetic block is fixedly connected with the middle of the piston block, and a magnetism isolating plate is fixedly connected with the inner wall, close to the outer side of the second magnetic block, of the piston block. According to the control device for automatically controlling water storage of the irrigation device, through cooperative use of the first magnetic block and the second magnetic block, when the water amount in the water tank is insufficient, the piston block moves downwards under the mutual repulsion effect of the first magnetic block and thesecond magnetic block, water in the water tank is supplemented in time, it is guaranteed that the water tank is always in a full state, the practicability of the irrigation device is improved, and theirrigation efficiency of the irrigation device is greatly guaranteed.

The invention provides an acidic oxidation potential water generator and a control circuit thereof. By arranging a current control circuit is arranged, the level of the current control circuit can beadjusted by means of a microprocessor, the voltage of an anode and a cathode of an electrolytic cell can be changed, and the value of pH / ORP / ACC can be further changed, so that the purpose of enablingindexes to be adjustable is achieved; by arranging an electromagnetic driving circuit, all components in a preparation process can be controlled in a unified way, the potential water, which is in accordance with national standards, is prepared by using the preparation process under the more precise control, the pollution is reduced, and the benefit of preparing the potential water is improved; the whole device can enable the preparation process of the potential water to be intelligently controlled, thus achieving the aim of unified control, reducing the pollution and improving the preparationefficiency; in addition, the acidic oxidation potential water generator can change the value of pH / ORP / ACC by adjusting the voltage and current of the anode and cathode of the electrolytic cell, thusachieving the aim of enabling the indexes to be adjustable.

The invention relates to the technical field of plastic feeding devices, in particular to an efficient anti-slip plastic conveying device. The efficient anti-slip plastic conveying device comprises aconveying roller, a movable groove is formed in the middle of the conveying roller, a spring is fixedly connected to the inner wall of the movable groove, a sliding block is fixedly connected to the right side of the spring, and a dielectric plate is fixedly connected to the middle of the sliding block. A positive plate is fixedly connected to the position, close to the bottom of the sliding block, of the inner wall of the conveying roller, a negative plate is fixedly connected to the position, close to the top of the sliding block, of the inner wall of the conveying roller, and a resistor isfixedly connected to the inner wall of the conveying roller. According to the efficient anti-slip plastic conveying device, through cooperative use of an electromagnet and a piston block, when the conveying roller slips, the conveying roller rotates at an overspeed, the electromagnet is in an electrified state, the viscosity of magnetorheological fluid on the inner side of a rotating groove and the inner side of a circular groove is increased, the moving difficulty of the piston block is increased, and the rotating speed of the conveying roller is effectively reduced; and therefore, stall of the conveying roller is prevented, and the possibility of slipping is effectively reduced.

The invention discloses a high performance voltage controllable electrical power supply comprising a housing, an upper cover, multiple plugging sockets and multiple insulating installing discs. Each plugging socket is rotatably clamped with each annular slide slot with a circular opening by an annular slide block. Each plugging socket is provided with two left-and-right symmetrical plugging jacks.A fire wire insulating plastic sleeve and a zero wire insulating plastic sleeve are fixedly plugged into each plugging socket through two plugging jacks. A fire wire conductive sleeve and a zero wireconductive sleeve are connected on the bottom end surfaces of the fire wire insulating plastic sleeve and the zero wire insulating plastic sleeve. Multiple resistors are vertically arranged on the top end surfaces of multiple insulating installing discs. A first conductive copper sheet and a second conductive copper sheet are horizontally arranged on the front and rear sides of the bottom end surface of the inner cavity of the housing through an insulating plastic support rod respectively. Normal use of the electrical power supplies of different power can be protected from being overloaded orunder-voltage to the circuit by changing the input voltage of the electrical appliance.

The invention discloses a multi-shape clamping device for aluminum-plastic equipment and relates to the technical field of aluminum-plastic equipment. The multi-shape clamping device for the aluminum-plastic equipment comprises a clamping plate, an electromagnet is fixedly connected to the inner wall of the clamping plate, a clamping groove is formed in the inner wall of the clamping plate, and aspring is fixedly connected to the position, close to the right side of the electromagnet, of the inner wall of the clamping plate; and the right side of the spring is fixedly connected with a pistonblock, the left side of the piston block is fixedly connected with a magnetic block, the middle of the piston block is fixedly connected with a dielectric plate, and the right side of the piston blockis fixedly connected with electric conduction blocks. According to the multi-shape clamping device for the aluminum-plastic equipment, through cooperative use of the clamping groove and a rubber film, when a clamp clamps objects in different shapes, the rubber film can change according to the shapes of aluminum-plastic materials, electrorheological fluid in the clamping groove is extruded, and when the electrorheological fluid is extruded to a certain degree, the electrorheological fluid can become into a solid state under the electrification effect, the clamped shapes are effectively fixed,and therefore the effect of being capable of clamping multiple shapes is achieved, the production cost is saved, and the production efficiency is effectively improved.

The invention discloses a power saving method for communication engineering, which includes steps of device installation, signal connection, electrical connection, voltage processing and the like. Compared with the prior art, in the present invention, a pulse width modulator is arranged between the power supply module and the processor, and the pulse width modulator can adjust the power-on frequency, which can change the voltage carried by the circuit, and can save electricity. By connecting the signal acquisition module with the signal amplifying module, the collected signals can be processed and intensity amplified, so as to avoid loss in the transmission process and affect the reception of information, and the required internal voltage can be controlled artificially. The method of the present invention is simple , easy to operate, good power saving effect.

The invention discloses an easy-to-replace support frame for graphene spinning, and relates to the technical field of graphene spinning. The easy-to-replace support frame for graphene spinning comprises a fixed frame, wherein a hydraulic groove is formed in the middle of the fixed frame, and a piston rod is movably connected to the left side of the hydraulic groove; a dielectric plate is fixedly connected to the middle of the piston rod, and the inner side of the piston rod is fixedly connected with a spring I fixedly connected with the inner top wall of the fixed frame; and the inner wall ofthe fixed frame is fixedly connected with a positive plate close to the outer side of the hydraulic groove. According to the easy-to-replace support frame for graphene spinning, through cooperative use of a movable frame and a clamping block, the movable frame is in an extending state, and the clamping block is connected with a positioning groove in a clamped mode, so that movement of the movableframe is effectively limited; when a winding roller needs to be replaced, the clamping block retracts into a rotating shaft, and at the moment, the movable frame can rotate and retract into a retracting groove; at the moment, the winding roller can fall off from one side of an automatic frame; and thus, the effect of easy replacement is achieved, the replacement time is effectively saved, and theworking efficiency is improved.

The invention discloses a separating type transformer capable of transforming three phases into single phase. The transformer comprises a primary assembly and a secondary assembly, wherein the primary assembly comprises a primary annular iron core and a primary three-phase symmetric winding; a groove is axially formed in the inner side of the primary annular iron core; the primary three-phase symmetric winding which is connected with a three-phase AC power supply is embedded into the groove; a primary cavity is formed in the primary assembly; the secondary assembly comprises a secondary iron core, and a secondary winding which coils the secondary iron core; the secondary assembly is positioned into the primary cavity; each phase of the three-phase AC power supply can be used for supplying power to the primary three-phase symmetric winding, and a rotating magnetic field can be formed in the primary cavity; the rotating magnetic fields are treated as mediums to uniformly absorb and collect the energy of the three phases of the power supply and then induce the energy of the three phases to the secondary winding; in addition, the primary assembly and the secondary assembly are electrically separated during the transforming process. The separating type transformer capable of transforming the three phases into the single phase has the phase transforming, voltage transforming and frequency varying functions, so that the transformer has a wide application prospect.

The invention provides a control system for a multi-functional drinking water station. The control system provided by the invention has the beneficial effects that through arranging a first current control circuit and a second current control circuit, the levels of the current control circuits can be regulated by a second microprocessor and a third microprocessor, so that the voltage magnitude ofeach of a cathode and an anode of an electrolytic cell is changed, further the value of pH / ORP / ACC is changed, therefore, the index adjustment purpose is achieved; through arranging a first electromagnetic drive circuit and a second electromagnetic drive circuit, all the components in a preparation process can be controlled in a unified manner, so that the preparation process can be used for preparing potential water in accordance with the national standard under more precise control, the pollution is reduced, and the beneficial effects of preparing the potential water are improved; the wholedevice can ensure that the preparation process of the potential water is under intelligent control, so that the unified control purpose is achieved, the pollution is reduced, and the preparation efficiency is improved; the value of pH / ORP / ACC can be changed through regulating the voltage and current magnitudes of the cathode and the anode of the electrolytic cell, so that the index adjustment purpose is achieved.

The invention discloses edible oil conveying equipment capable of effectively preventing a pipeline from falling off, and relates to the technical field of edible oil equipment. The edible oil conveying equipment capable of effectively preventing the pipeline from falling off comprises an oil conveying pipe, wherein an electromagnet is fixedly connected to the inner wall of the bottom of the leftside of the oil conveying pipe, a liquid groove is formed in the top of the oil conveying pipe, a spring I is fixedly connected to the bottom of the liquid groove, a piston block is fixedly connectedto the top of the spring I, a magnetic block is fixedly connected to the bottom of the piston block, a dielectric plate is fixedly connected to the middle of the piston block, and a conductive block is fixedly connected to the top of the piston block. According to the edible oil conveying equipment capable of effectively preventing the pipeline from falling off, a rubber film and the piston blockare used in a matched mode, and when the pressure in the pipeline is too large, the piston block can move upwards under the magnetic repulsion action of the electromagnet and the magnetic block, electrorheological fluid is extruded upwards, so that the rubber film is expanded and attached to the inner side of the conveying pipeline, the contact area is increased, the friction force is increased, and stable use of the conveying pipeline is effectively guaranteed.

A fixture with a protection function for smartphone detection relates to the technical field of smartphone manufacturing machinery and comprises a fixing table, a fixing groove is formed in the top of the fixing table, a rubber film is fixedly connected to the top of the fixing table, a first spring is fixedly connected to the inner bottom wall of the fixing table, and a piston block is fixedly connected to the top of the first spring. An electromagnet is fixedly connected to the inner wall of the top of the piston block, a dielectric plate is fixedly connected to the inner wall of the piston block, a positive plate is fixedly connected with the inner side of the left side of the fixing table, and a negative plate is fixedly connected to the inner wall of the right side of the fixing table. According to the fixture with a protection function for smartphone detection, through cooperative use of the rubber film and the electromagnet, when a smartphone is placed on the rubber film, the rubber film can be sunken under the action of gravity of the smartphone, and when a touch screen of the smartphone is detected, magnetorheological fluid is powered on, so that the smartphone has a buffer effect, the smartphone is effectively protected against damage caused by continuous pressing to influence the accurate result of the detection result.

The invention discloses a separating type transformer capable of transforming three phases into single phase. The transformer comprises a primary assembly and a secondary assembly, wherein the primary assembly comprises a primary annular iron core and a primary three-phase symmetric winding; a groove is axially formed in the inner side of the primary annular iron core; the primary three-phase symmetric winding which is connected with a three-phase AC power supply is embedded into the groove; a primary cavity is formed in the primary assembly; the secondary assembly comprises a secondary iron core, and a secondary winding which coils the secondary iron core; the secondary assembly is positioned into the primary cavity; each phase of the three-phase AC power supply can be used for supplying power to the primary three-phase symmetric winding, and a rotating magnetic field can be formed in the primary cavity; the rotating magnetic fields are treated as mediums to uniformly absorb and collect the energy of the three phases of the power supply and then induce the energy of the three phases to the secondary winding; in addition, the primary assembly and the secondary assembly are electrically separated during the transforming process. The separating type transformer capable of transforming the three phases into the single phase has the phase transforming, voltage transforming and frequency varying functions, so that the transformer has a wide application prospect.

An anti-misstepping device for a pedal bar of a freight vehicle, relating to the technical field of freight transportation. An anti-misstepping device for a pedal bar of a freight vehicle includes a rotating rod. The inner wall is fixedly connected with a spring, the left side of the spring is fixedly connected with a slider, the inner wall of the slider is fixedly connected with a dielectric plate, the inner wall of the top of the rotating rod and close to the top of the movable groove is fixedly connected with a positive plate, and the inner wall of the top of the rotating rod is close to The bottom of the movable tank is fixedly connected with a negative plate. The anti-misstepping device for the pedal rod of the freight vehicle is used in conjunction with the electromagnet and the magneto-rheological fluid, and the electromagnet is in the energized state. It is difficult to move under the action of magnetorheological fluid. When the pedal is stepped on, the electromagnet will be powered off at this time, and the viscosity of the magnetorheological fluid will decrease. At this time, the connecting rod will shrink into the piston groove, and the throttle lever will automatically return to its original position. Effectively prevent the accelerator pedal from being stepped on by mistake, and improve the safety of the truck.

A pusher for circuit board processing relates to the technical field of circuit board processing and comprises a pushing head, the inner wall of the pushing head is provided with a feeding cavity, the inner top wall of the pushing head is fixedly connected with a first spring, the bottom of the first spring is fixedly connected with a top block, the middle of the top block is fixedly connected with a magnetic block, the inner wall of the pushing head is fixedly connected with a first friction ring, a tooth block is movably connected with the inner wall, close to the outer side of the first friction ring, of the pushing head, a second friction ring is fixedly connected with the inner wall of the tooth block, an air groove is formed in the bottom of the pushing head, and a second spring is fixedly connected with the inner top wall of the air groove. According to the pusher for circuit board processing, through cooperative use of an ejector block and an electromagnet, when the pushing head is blocked, the electromagnet is in a power-on state, and the ejector block can extend downwards under the magnetic attraction action of the electromagnet and a magnetic block to extrude out solid raw materials in the pushing head, so that the effect of automatic cleaning is achieved, time is saved, and the production efficiency is effectively improved.

The invention relates to a light emitting diode driving circuit with adjustable output current, which comprises a pulse-width modulation control chip, an input unit and an output unit, wherein a PWM-D (Pulse Width Modulation-Digital) pin of the pulse-width modulation control chip is electrically connected with a pulse-width modulation signal, a slide end of a slide theostat arranged in the input unit is electrically connected with an LIN-D (Linear-Digital) pin of the pulse-width modulation control chip, a source electrode of N groove reinforcing type MOSFETs (Metal-Oxide -Semiconductor Field Effect Transistors) arranged in the output unit is electrically connected with an ISEN pin of the pulse-width modulation control chip through a second resistor, a drain electrode is electrically connected with one end of an inductor and a positive electrode of a fast diode, a first capacitor is electrically connected between the other end of the inductor and the negative electrode of the fast diode, and both ends of the first capacitor are output ends of the light emitting diode driving circuit and are electrically connected with a light emitting diode module for driving the light emitting diode module.

The invention discloses a limited bipolar circuit and method, and belongs to the technical field of power electronics. A PWM device SG3525, a phase inverter, an NAND gate and a double-D trigger are utilized to output a limited bipolar soft switching circuit driving signal with adjustable frequency, wherein the SG3525 generates a driving pulse width with an adjustable width; meanwhile, the pulse signal is utilized and combined with a pulse signal of a fourth pin of the SG3525, and finally, a driving signal with a fixed pulse width is output by the double-D trigger through level conversion and logic operation of the inverter and the NAND gate; and the equivalent resistance to the ground of the sixth pin of the SG3525 is indirectly controlled through an external level, so that the frequency of the driving pulse can be changed. The control method can be applied to any soft switching circuit needing to use a limited bipolar control mode, so that the application field is extremely wide.

The invention provides highway engineering supervision quality inspection equipment which comprises a friction inspection box, a measurement box is arranged at the bottom of the friction inspection box, and a first transverse plate, a second transverse plate, a third transverse plate and a fourth transverse plate are sequentially fixed to the right surface of the interior of the friction inspection box from top to bottom. A first stop block, a second stop block and a third stop block are fixed to the lower surfaces of the left portions of the first transverse plate, the second transverse plateand the third transverse plate correspondingly, and the right ends of the first stop block, the second stop block and the third stop block make contact with the top ends of the left surfaces of a first spring end plate, a second spring end plate and a third spring end plate correspondingly. A red lamp strip, a yellow lamp strip and a green lamp strip are respectively arranged on the right sides of the first spring end plate, the second spring end plate and the third spring end plate. According to the technical scheme, the technical problems that in the prior art, the capability of checking the friction coefficient grade of the road is not achieved, and measurement, automatic sampling and the like of the slope of the road cannot be achieved are effectively solved, and application and popularization are facilitated.

The utility model relates to the technical field of household ornaments, in particular to an anti-misplug plug and socket for household ornaments, which comprises a plug, an insertion rod fixedly connected to the bottom of the plug, a resistor fixedly connected to the inner wall of the top of the insertion rod, and a negative plate fixedly connected to the inner wall of the right side of the insertion rod. A positive plate is fixedly connected to the inner wall of the left side of the insertion rod, a spring is fixedly connected to the inner bottom wall of the insertion rod, a sliding block isfixedly connected to the top of the spring, a dielectric plate is fixedly connected to the middle of the sliding block, and a protruding block is fixedly connected to the outer side of the insertionrod. According to the mis-unplugging prevention plug and socket for the home decoration, through the cooperative use of the rotor and the stator, when the plug is suddenly unplugged outwards, the electromagnet on the inner wall of the rotor is in an electrified state, so that magnetic powder forms a magnetic chain between the rotor and the stator, the rotation of the rotor is blocked, and the rotation of the rotating block is further limited; therefore, the effect of effectively preventing the plug from being pulled out mistakenly is achieved, and the stability of the plug is improved.

The invention relates to the technical field of electric power, in particular to a magnetorheological fluid-based electric power anti-misplug socket which comprises a socket, a hydraulic groove is formed in the bottom of the socket, a spring is fixedly connected to the top of the middle of the hydraulic groove, and a piston block is fixedly connected to the bottom of the spring. A dielectric plateis fixedly connected to the middle of the piston block, a first iron block is fixedly connected to the top of the piston block, sliding blocks are movably connected to the two sides of the hydraulicgroove, and damping holes which are evenly distributed are formed in the bottoms of the sliding blocks. According to the magnetorheological fluid-based electric power anti-misplug socket, through thecooperative use of an electromagnet I and an iron block II, when a plug is completely inserted into the socket, the magnetism of the electromagnet is increased to the maximum extent, so that an iron block I and an electromagnet I attract each other, the connection strength between the plug and the socket is improved, the effect of preventing the plug from being pulled out by mistake is effectivelyachieved, and the working stability of power equipment is improved.

The invention discloses a drying mechanism used after wheat grain washing, which relates to the technical field of agricultural production equipment and comprises a plug. An iron block is fixedly connected to the inner wall of the plug, a socket is inserted into the bottom of the plug, a piston groove is formed in the middle of the socket, a piston block is movably connected to the inner wall of the piston groove, through holes which are uniformly distributed are formed in the inner wall of the piston block, an electromagnet is fixedly connected to the middle of the piston block, guide columns are fixedly connected to the top and the bottom of the piston block, and resistors are fixedly connected to the inner walls of the guide columns. According to the drying mechanism used after wheat grain washing, through cooperative use of an electromagnet and an iron block, after a plug and a socket are connected in an inserted mode, the electromagnet is powered on, the electromagnet generates magnetism, and the iron block enables the plug and the socket to be firmly fixed together under the magnetic adsorption effect of the electromagnet, so that the effect of preventing the plug from falling off is achieved, and the stability of the plug is improved; the stable operation of the drying equipment is ensured, and the drying efficiency is improved.

The invention relates to the technical field of outdoor equipment, in particular to a new energy self-generating alpenstock with characteristics of buffering and low abrasion. The alpenstock comprisesa rod body, a piston cavity is formed in the inner wall of the rod body, a piston block is movably connected to the inner wall of the piston cavity, and an electromagnet is fixedly connected to the inner wall of the piston block. A movable hole is formed in the inner wall, close to the inner side of the electromagnet, of the piston block, and a telescopic rod movably connected with the inner wallof the rod body is fixedly connected to the bottom of the piston block. According to the new energy self-generating alpenstock with characteristics of buffering and low abrasion, a rotating block anda magnetic plate are used in cooperation, when the alpenstock is extruded downwards, the sliding plate can move upwards under the action of pressure, the rotating block is driven to rotate through aninserting rod and a protruding block, a closed coil rotates between the magnetic plates, magnetic induction lines are continuously cut, so that currents are generated; and the currents are stored, sothat the self-generating effect is achieved, the potential energy generated in the use process of the alpenstock is effectively utilized, and the practicability of the alpenstock is improved.

A method for manufacturing a GaAs-based two-dimensional electron gas plasma oscillation terahertz detector includes: manufacturing four photoetching mask plates with bowtie antennas; making an epitaxial wafer on a GaAs substrate; coating a SiO2 film on the surface of the epitaxial wafer by means of evaporation; making patterns on the SiO2 film; making patterns on a second GaAs layer; etching; making patterns on the exposed second GaAs layer and the SiO2 film; evaporating Au / Ge / Ni metal, and stripping to form a source and a drain; annealing; transferring patterns of the fourth photoetching mask plate to a third AlGaAs layer with an epitaxial wafer exposed by means of photoetching; evaporating Ti / Au metal on the surface of the epitaxial wafer, and stripping to form a gate electrode on the third AlGaAs layer; leading a lead from the electrode to finish preparation. Frequency resonance range can be affected by bias voltage changes, and accordingly response gains of different frequencies can be regulated, and adjustability in response frequency is realized.