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2748 results about "Work period" patented technology

Work Period. a part of production time during which workers operate directly on an object of labor in order to produce a finished product of labor. A work period does not include interruptions in the labor process or the time during which an object of labor is acted upon by natural forces without human participation, for example,...

Electric pressure cooker

The invention provides an electric pressure cooker, comprising an outer cooker, an inner cooker, a heating device, an elastic cell, a sealing device, a safety device and a control circuit which controls the pressure cooker to work. Besides, the invention also comprises a capacitance sensor, wherein the capacitance sensor comprises a first polar plate and a second polar plate, the heating dish is dislocated by the pressure to drive the first polar plate to move corresponding to the second polar plate, the signal of the capacitance change value is generated by changing the distance between the two polar plates, then the signal is inputted to the control circuit to detect and dispose, thus controlling the electric pressure cooker to work. The invention achieves the real-time detection and control of the pressure. As the pressure is continuous and adjustable, different pressure or working time can be chosen according to the condition of different food during the process of cooking. The capacitance value extra generated due to the capacitance sensor being disturbed by the temperature and the electromagnetic is counteracted by the compensating capacitance greatly. The signal quantity is effectively enlarged by the lever device, thus improving the detecting accuracy and the sensibility of the capacitance sensor.
Owner:JOYOUNG CO LTD

Modified electric pressure cooker

The invention provides an improved pressure cooker, comprising an outer cooker, an inner cooker, a heating device, a sealing device, a safety device and a control circuit which controls the pressure cooker to work, the cooker bottom of the outer cooker is an elastic plate. Besides, the invention also comprises a capacitance sensor, wherein the capacitance sensor comprises a first polar plate and a second polar plate, the cooker bottom of the outer cooker is elastically deformed by the pressure to generate displacement, thus driving the first polar plate to move corresponding to the second polar plate and changing the distance between the two polar plates, then the signal of the capacitance change value is generated and inputted to the control circuit to detect and dispose, thus controlling the electric pressure cooker to work. The invention achieves the real-time detection and control of the pressure. As the pressure is continuous and adjustable, different pressure or working time can be chose according to the condition of different food during the process of cooking. The capacitance value extra generated due to the capacitance sensor being disturbed by the temperature and the electromagnetic is counteracted by the compensating capacitance greatly. The signal quantity is effectively enlarged by the lever device, thus improving the detecting accuracy and the sensibility of the capacitance sensor.
Owner:JOYOUNG CO LTD

Electric pressure cooker

The invention provides an electric pressure cooker, comprising an outer cooker, an inner cooker, a heating device, an elastic cell, a sealing device, a safety device and a control circuit which controls the pressure cooker to work. Besides, the invention also comprises a capacitance sensor, wherein the capacitance sensor comprises a first polar plate and a second polar plate, the heating dish is dislocated by the pressure to drive the first polar plate to move corresponding to the second polar plate, the signal of the capacitance change value is generated by changing the distance between the two polar plates, then the signal is inputted to the control circuit to detect and dispose, thus controlling the electric pressure cooker to work. The invention achieves the real-time detection and control of the pressure. As the pressure is continuous and adjustable, different pressure or working time can be chosen according to the condition of different food during the process of cooking. The capacitance value extra generated due to the capacitance sensor being disturbed by the temperature and the electromagnetic is counteracted by the compensating capacitance greatly. The signal quantity is effectively enlarged by the lever device, thus improving the detecting accuracy and the sensibility of the capacitance sensor.
Owner:JOYOUNG CO LTD

Method for judging life of air purifier filter screen

The invention discloses a method for judging the life of an air purifier filter screen, wherein the method comprises the following steps: determining the dust containing capacity M of the selected purifier filter screen through tests, determining the initial filtration efficiency eta0 of the filter screen and the filtration efficiency eta1 of the filter screen when the service life is ended, determining the purifier running air volume Q, assuming an actual working time, and reminding a user to replace or clean the filter screen. In the premise without addition of extra cost, according to easily acquired data including the purifier running air volume Q, the filter screen filtration efficiency, the working time and the like, and through a reasonable operation mode, the user can be accurately reminded to replace the filter screen, so as to prevent the user from untimely replacing the filter screen so as to prevent waste, or prevent the user from replacing the filter screen too late so as to prevent from causing bad effect or even causing secondary pollution; even the filter screen works in different seasons, different regions and different pollutant concentrations, the replacement time of the filter screen also can be reasonably prompted to ensure the reasonable use of the filter screen and not to cause waste.
Owner:FOSHAN CITY FOREST PURIFICATION TECH CO LTD

Five-axis cement-soil mixing pile device and construction method

The invention relates to a five-axis cement-soil mixing pile device and a construction method. The device comprises a walking-type and crawler-type host machine, a winding machine, a guide rod, a steel wire rope, a slurry inlet, a power head, a speed change box, a speed reducer, drill stems, a middle support frame, a lower support frame, drill stems with wings, hoops, a multifunctional drill head, a slurry spraying opening and a background cement slurry mixing system, wherein the winding machine and the guide rod are fixed on the host machine; the power head is connected with a pulley on the top of the guide rod through the steel wire rope; the steel wire rope drives the power head to rise and fall in a vertical direction; the power head is connected with five drill stems sequentially through the speed change box and the speed reducer; the middle support frame is arranged on the middle parts of the five drill stems, and the lower support frame is arranged on the lower parts of the five drill stems; the drill stems with wings are connected to the lower ends of the drill stems; the hoops are arranged on the drill stems with the wings; the lower ends of the drill stems with the wings are connected with the multifunctional drill head; and the slurry spraying opening is formed in the multifunctional drill head. Compared with the prior art, the five-axis cement-soil mixing pile device has the advantages of guaranteeing the safety and the quality, reducing the cost, shortening the work period and the like along with no noise, no vibration and high efficiency.
Owner:SHANGHAI CHENGDI CONSTR

Household electricity intelligent management system

The invention provides a household electricity intelligent management system. A sensor is used for monitoring the indoor personnel situation, the temperature, the humidity, light brightness and the like in a real-time mode. According to the acquisition of data like the temperature, whether relevant electric appliances are turned on or not is determined, and the temperature value when the relevant electric appliances run is determined. A working period of each electric appliance can also be set, before each relevant electric appliance is turned on, whether the current time is located in the working period of each electric appliance or not is preferentially judged, and if the current time is not in the working period, the electric appliances can not be turned on. According to the corresponding relation between the set electricity prices and periods, and the corresponding relation between the electricity consumption and the electricity prices, after the electricity consumption of each electric appliance is obtained, the total electricity consumption and the electricity consumption in each period are calculated, whether the total electricity consumption exceeds the preset value or not is judged, if the total electricity consumption exceeds the preset value, a prompt is sent to a user through an alarm module, the user is informed of the current electric consumption and the electric charge situation, and some electric appliances are turned off according to the preset electricity consumption weight of the electric appliances. The household electricity intelligent management system can effectively manage the household electric appliances and save electric energy when used.
Owner:STATE GRID CORP OF CHINA +3

Determination method of network side harmonic current of high-voltage direct current power transmission system

The invention discloses a determination method of network side harmonic current of a high-voltage direct current power transmission system. The determination method comprises the following steps: if the harmonic current voltage at a direct current power transmission line inlet is zero, decoupling and equalizing a rectifying side and an inverting side into a plurality of independent six-pulse moving bridge units; dividing a work period of the six-pulse moving bridge units into six phase converting sections and six non-phase converting sections; calculating a phase converting overlapping angle of each phase converting section; equalizing a current converter into a harmonic current voltage source containing internal resistance; calculating the direct current side harmonic current according to the concrete forms of a smoothing reactor and a direct current filter; obtaining valve side harmonic current according to an equivalent circuit of the current converter; and converting the valve side harmonic current to a network side according to a connecting structure of a transformer to obtain the network side harmonic current. The invention considers background harmonic current and other nonideal factors, and can quickly and accurately obtain the harmonic current at the network side of a converter transformer, accelerate the period for designing an alternating current filter in the high-voltage direct current power transmission engineering and improve the design quality and the design efficiency.
Owner:ZHEJIANG UNIV

Full-automatic horizontal surface grinding machine mechanical arm

The invention discloses a full-automatic horizontal surface grinding machine mechanical arm which comprises a machine table and a product containing table. An automatic detection device, a turning device, a cleaning device and a grabbing mechanical arm body are arranged on the machine table. The product containing table and the machine table are arranged side by side. The automatic detection device, the turning device, the cleaning device and the grabbing mechanical arm body are all installed on the machine table, and an automatic grinding machine device is connected with the machine table. By means of the automatic detection device, the turning device, the cleaning device, the grabbing mechanical arm body and the automatic grinding machine device, saw blades are fed, discharged, detected, cleaned and ground in a full-automatic mode, full-automatic operation of the whole process is achieved, and labor cost of an enterprise is greatly reduced; by means of accurate numerical control operation, cost is reduced, the yield is improved, and the production loss rate is reduced; production efficiency is improved, and working time is shortened; by means of full-automatic production, guarantees can be provided for workers on the aspects of mechanical contusion, tiny dust and exhaust gas inhalation and metal dirty water corrosion to human bodies.
Owner:GUANGZHOU HENGWEI ELECTROMECHANICAL EQUIP CO LTD

Novel practical remotely-controlled fishing biomimetic robotic fish

The invention discloses a video-supporting remotely-controlled fishing biomimetic robotic fish with dual joints to which the power is supplied by coordinately swinging dual tail fins in an opening and closing way and coordinately swinging dual pectoral fins. The biomimetic robotic fish has the characteristics of high speed, flexible turning, high water resistance, high stability, support of fishing, long working time and support of video. The key technology of the biomimetic robotic fish is that: a gear shaft handle is used for pushing a U-shaped shaft arm actuating device, so that the swinging of the tail fins and the dual pectoral fins has the characteristics of continuousness, rapidness, stableness, high efficiency, strong force and the like; a bolt is used for driving a gear arm running device by rotating, so that fish body steering, closing of a fish mouth and receiving and releasing of a fish net can be realized, and rapidness, accuracy and firmness are realized; a dual-layer circular tube nipple joint is sleeved on an anti-water-seepage and inner cavity anti-water-seepage alarm device of a dual-layer rubber tube, so that a mechanism in the abdomen of the fish is ensured; an air pump and an air bag are combined skillfully and applied flexibility, so that the head of robotic fish rises upwards during floating and extends downwards during sinking, a biomimetic function is realized, and the flexibility and diving speed can be increased; and video and the remote control are integrated, so that the function of fishing real fishes with a biomimetic fish is realized.
Owner:张世广
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