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

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 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 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 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.

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 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 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.