1096results about How to "Quick reset" patented technology

A switching power supply control-circuit according to the present invention uses bleeding resistors to charge a start-up capacitor and discharge an EMI filter. No extra discharge device is needed to accelerate the discharge of the input capacitor, since the start-up capacitor is charged up by the AC input source. A latch circuit of the power supply can be quickly reset after the AC input source is shut off. After the control-circuit begins to operate, the auxiliary winding of the transformer will power the control-circuit. To further reduce power consumption, the auxiliary winding generates a bias voltage to enable line-voltage detection. This allows the power supply to perform line-voltage detection and startup, without having to connect resistors or transistors to the input capacitor.

A device and method for diagnosing shorts and fault conditions in electrical circuits such as heating, ventilation, and air conditioning (HVAC) control circuits. The device includes a positive temperature coefficient (PTC) member to protect the electrical circuit from overcurrent conditions during diagnosis. The device also includes a light emitting diode (LED) and resistor electrically connected in parallel across the PTC member. An overcurrent condition causes the resistance of the PTC member to rise dramatically, creating a potential difference across the PTC member and lighting the LED. The invention also includes a method for locating a short in an HVAC control circuit using the short locating device.

The invention relates to a paper perforating device, in particular to a paper perforating device for an accounting teaching and aims at solving the technical problems to provide the paper perforating device for the accounting teaching with small amount of labor, high working efficiency and no liability in damaging paper. For solving the technical problems, the invention provides the paper perforating device for the accounting teaching. The paper perforating device for the accounting teaching comprises a bottom plate, an electric wire winding wheel, a first stay wire, a pressure plate, a wood collection frame, a guide wheel, a left bracket, guide plates, an oscillating rod, a top plate, a first slide rail, a mobile frame, a first sliding block, pressure rods, a first spring, a wedge-shaped block, a contact rolling wheel, a stop dog, a lifting rod, a perforating drill, a sliding sleeve, a mobile rod, a connecting frame and the like; and the top of the bottom plate is sequentially provided with the left bracket from left to right. According to the paper perforating device for the accounting teaching, the effects of small amount of labor, high working efficiency and no liability in damaging paper are reached; and as the perforating drill can carry out rapid perforation on the paper, the perforating time can be reduced, the working efficiency can be improved, and the treating time can be increased.

The invention discloses a dust environment simulator and a calibration method for a dust concentration measuring instrument by using the same. The dust environment simulator comprises a dust generation unit, a simulation chamber and a test support, wherein the simulation chamber comprises a cylindrical mixing section, a concentrating section with a convergent lower end, a diffusing section with a flared lower end and a cylindrical test section, the sections are communicated from top to bottom, the bottom of the test section is provided with an air outlet, a dust outlet of the dust generation unit is communicated with the mixing section, the test support is installed in the test section, at least two disposition stations are arranged in a same horizontal plane on the test support, the test section is provided with an openable and closable observation door, and an air inlet is communicated with a air feeding fan or the air outlet is connected with an air exhausting fan. The dust environment simulator utilizes the vertically arranged simulation chamber for mixing, concentration and diffusion of dust and air-flow, enables dust to be uniformly distributed in the test section in the manner of free falling, allows difference of concentration of dust located at a same horizontal position in the test section to be reduced and is capable of increasing the calibration accuracy of a dust concentration tester.

A particle-counting apparatus is described, which reduces a resulting width of pulses when a charge pulse is received from a particle detector, thereby reducing pile-up problems with pulses. Pulse shortening is obtained by resetting the pulse shortly after it exceeds its peak level at the apparatus output. The apparatus includes a charge-sensitive amplifier and a shaper which generates an output for subsequent discrimination circuits. A reset generator monitors the shaper output and generates a reset signal to the shaper when a peak has been detected.

The invention discloses an electromagnetic arresting device for deck landing or landing of an aircraft and relates to an electromagnetic arresting system. The problems that an existing landing assisting and arresting system is large in weight and size, complicated in structure, low in reliability and the like are solved. The device comprises two rotary electromagnetic arresters of the same structure, and an arresting cable. Each rotary electromagnetic arrester comprises a rotary motor, a rotary eddy current retarder brake, an arresting cable drum and a motor driven controller, wherein the rotary motor, the rotary eddy current retarder brake and the arresting cable drum share one rotary shaft. The two rotary electromagnetic arresters are arranged symmetric with an aircraft landing runway as the center, and the two ends of the arresting cable are wound on the two arresting cable drums correspondingly. The electromagnetic arresting device adapts to deck landing or landing of a carrier aircraft.

An electromagnetic actuator in one embodiment includes characteristics of very fast actuation, shock invariant design, and compact size. The actuator may be controlled via a small low voltage power source such as a battery and simple switching logic. Such characteristics are ideally suited for incorporating the actuator into the firing mechanism of a firearm, which are subjected to drop tests to confirm the firearm will not discharge in the absence of trigger pull. Very fast snap-like action is attained by balancing the magnetic forces of two opposing permanent magnets around a stationary yoke and rotating member to create three circulating magnetic flux circuits. A central electromagnet coil on the yoke amplifies the magnetic flux of one side of the rotating member or the other depending on the power source actuation polarity, thereby creating two possible snap-like actuation positions. The actuator is usable in firing mechanism release or blocking applications.

A solenoid-operated valve actuating controller actuates a solenoid-operated valve by energizing an actuating coil of the solenoid-operated valve in a rated mode, enough to move a movable member in the actuating coil, during a first period. Further, the actuating coil is energized in a power saving mode, during a second period after the first period. The solenoid-operated valve actuating controller has a timer circuit for setting the first period, an oscillating circuit for energizing the actuating coil in the power saving mode during the second period, and a control circuit for stopping an oscillating operation of the oscillating circuit during the first period based on an output signal from the timer circuit, and for energizing the actuating coil in the rated mode.

The present invention relates to an stormproof billboard and control method thereof, which includes a column, a billboard stent, a rotating element, a motor, an electromagnetic brake, an anemoscope, a trigger switch, and an electric control assembly, wherein the control element respectively connects with the electromagnetic brake, the motor and the trigger switch, the electric control assembly controls the work of the motor and the electromagnetic brake by the wind speed signal measured by the anemoscope and the signal of the trigger switch. By using above structure, the invention can change the windward section of the stormproof billboard by the wind speed and the wind direction, such that effectively reduces the wind load, makes the stormproof billboard more secure in use. The invention is easy to control and secure to use, makes the advertisement have a good effect, it is worth to use the stormproof billboard.

A height adjustable apparatus for supporting a golf tee includes an outer sleeve configured for ground penetration defining an open top into which an inner sleeve is slidably received. The inner sleeve defines an open top for receiving a golf tee therein. The inner and outer sleeves include complementary fasteners such that the inner sleeve may be maintained at a selectable longitudinal configuration relative to the outer sleeve and slidable moved between retracted and extended configurations, whereby to adjust the height of the golf tee. A spring is positioned in the outer sleeve for urging the inner sleeve in an upward direction although the fasteners resist such movement. A cam assembly releases the inner sleeve to be reset to the extended configuration once it has been fully retracted.

The invention relates to the technical field of automobile spare parts and discloses a disc brake for an automobile braking system. The disc brake comprises a brake disc, the front face of the brake disc is fixedly provided with a wheel flange, the front face of the wheel flange is fixedly provided with a dust cover, and the front face of the wheel flange is fixedly provided with four hub bolts located on the periphery of the dust cover. According to the disc brake for the automobile braking system, a resetting device is movably connected between a first braking friction piece and a second braking friction piece in a sleeved manner, one end of a third nut is connected with a guide pin in a threaded manner, one end of the guide pin is fixedly connected with a gasket in a sleeved manner, theside face of the gasket is movably connected with a first spring in a sleeved manner, the other end of the first spring is fixedly connected with a sliding block, and the sliding block is movably connected outside the guide pin in a sleeved manner. By means of the disc brake, after braking is finished, the first braking friction piece can reset rapidly, the situation that the first braking friction piece continuously rubs with the brake disc to cause abrasion and lower the service life is prevented, therefore the problem that the friction pieces cannot reset rapidly is solved, the service life is prolonged, and the safety of an automobile is improved.

Repeater circuit with high performance repeater mode and normal repeater mode, wherein high performance repeater mode has fast reset capability, is provided and described. In one embodiment, switches are set to a first switch position to operate the repeater circuit in the high performance repeater mode. In another embodiment, switches are set to a second switch position to operate the repeater circuit in the normal repeater mode.

The invention relates to a precise resetting system of humanoid robot initial position, comprising a control command transmitting module, an upper-layer command communication module, a reset controller module, a reset actuator module, a lower-layer data communication module and an angle acquisition module, wherein a reset control command transmitted by the control command transmitting module is transmitted to the CPU of the reset controller module via the upper-layer command communication module; the CPU starts resetting, and the lower-layer data communication module controls the angle acquisition module to detect the angels of a position inclination angle sensor and a gyroscope installed on the joint and the body of the humanoid robot; after the angles are compared with the angle preset in the CPU, the error value is transmitted to the reset actuator module via the upper-layer command communication module to control the motor to reset; then, the reset controller module detects reset error angle and transmits to an upper-layer real time computer via the upper-layer command communication module to finish one-time resetting. The invention can ensure that the humanoid robot can quickly and stably restore to the same accurate initial position at any time.

The invention provides an overhead high tension transmission line tensile wire clamp drainage crab bolt fastener. The fastener comprises a driving motor and a transmission case, wherein the transmission case comprises a transmission mechanism connected with the driving motor for transmitting torque, a butt joint mechanism used for aligning and cooperating with a bolt, and a buffer mechanism used for partially pressing a nut. According to the invention, the requirement for a work arm is quite low, the operation is simple and convenient, the fastener can be applied to a fastening tensile wire clamp drainage crab bolt and can also fasten bolts of other hardware fittings, what is needed is only to replace an internal hexagonal sleeve according to the models of the bolts, the mounting and dismounting of the internal hexagonal sleeve are convenient, and the practical value is quite high.

The invention discloses a fabricated steel structure integrated environment-friendly building and a mounting method thereof, and belongs to the technical field of fabricated steel structure integrated environment-friendly buildings. The fabricated steel structure integrated environment-friendly building comprises a bottom plate, a steel structure house body is fixedly connected to the top of the bottom plate, a roof is fixedly connected to the top of the steel structure house body, and first flow guide grooves are fixedly connected to the left side and the right side of the bottom of the roof correspondingly. When impurities block a filter plate, rainwater is accumulated at the top of the filter plate, the filter plate moves downwards through the rainwater, the filter plate acts on a push plate, thus a scraper plate automatically cleans the top of the filter plate, the impurities at the top of the filter plate are discharged into a material collecting plate, and manual participation is not needed; and when the filter plate is blocked, the filter plate is automatically cleaned, it is guaranteed that the filter plate can filter the rainwater all the time, and the situation that the rainwater cannot be collected due to the fact that the filter plate is not cleared in time is avoided.