1615results about How to "Quick close" patented technology

A partial stroke testing system for online testing of emergency shut-off valve, said system is designed for implementation on an emergency shut-off valve with a main solenoid with manual reset, main solenoid valve, quick exhaust valve and a pneumatic actuator connected to a source of pressurized air supply for opening and closing the said emergency shut-off valve and the said shut-off valve normally movable between a fully open and fully closed position. The system also include control means programmed into the plant emergency shutdown system controller for initiating electrical signal for initiating a test and for enhancing the bleed rate from the said pneumatic actuator in the event of a emergency trip signal. Test means for testing the said emergency shut-off valve without fully closing the emergency shut-off valve in response to signal from the said control means is included in the system. The said test means, controlled by the said control means, include a second solenoid and a second solenoid valve for bleeding off pressurized air to thereby move the said emergency shut-off valve from full opened position to partially closed position. Means for limiting the movement of said emergency shut-off valve to a partially closed position because of the bleeding of pressurized air is included in the system. The system also includes an isolation valve for isolating the said test means for maintenance purpose.

Microneedle device is provided, which include microneedles that can be easily inserted into skin and dissolve or swell in skin. The microneedle devices comprise a substrate and cone-shaped or pyramid-shaped microneedles for skin insertion set on the substrate. The microneedles for skin insertion contain over 50 weight percent of one or multiple biomaterials chosen from chitosan, collagen, gelatin, hyaluronic acid, and they are fabricated from the materials that can dissolve or swell in the body.

An outdoor umbrella that closes automatically in high wind is disclosed. The wind causes the main support post of the umbrella to flex from the vertical dislodging a plunger from its weight bearing mounting on a rigid rod. The plunger is attached to an actuator rod extending upward within the support post. When the plunger is displaced the actuator rod is caused to move downward thereby activating a releasing ratchet which frees a shaft to rotate and the cable which holds the canopy to unwind. A hydraulic cylinder attached to one of the canopy ribs presses on the rib to close the canopy and maintain the canopy in closed orientation. As the canopy closes a reset mechanism is activated which resets the plunger onto the rigid rod. Once closed the canopy will remain closed until raised by manually rewinding the cable onto the shaft using a hand crank attached to the end of the shaft. A second ratchet assembly incorporated into the hand crank prevents the hand crank from spinning when the umbrella closes.

The present invention provides a method of opening picture browser windows and comprises that: a command of zooming in a thumbnail is accepted; the thumbnail is used for pointing to picture document which is stored in a memory; a picture browser window is opened by a dynamic gradual changing mode; the picture browser window is used for displaying the picture of the picture document which the thumbnail points to. The present invention also provides a method of closing the picture browser window which comprises that: a command of zooming out the picture browser window is accepted; the picture browser window is closed by the mode of the dynamic gradual changing on the thumbnail. The invention also provides a device for opening and closing the picture browser window. The invention adopts a dynamic gradual changing effect to open and close the picture browser window and has the advantages of smooth operation and good visual effect and improves the use feeling of users.

The invention provides a fast vacuum circuit breaker being fast in movement and strong in reliability and used for protecting a high-power power electronic converter. The fast vacuum circuit breaker comprises a circuit break contact finger part, a contact part and a permanent magnet operation mechanism part, wherein the circuit break contact finger part comprises a conducting bar, a buffer spring, a contact finger base, a slide bar and a spring contact finger; the contact part comprises a fixed contact, a moving contact and a vacuum arc extinguish chamber; the permanent magnet operation mechanism part comprises an insulating draw bar, a moving rod, a switching-on repulsion coil arranged at the upper part of the draw bar, a fixed repulsion coil, a tripping repulsion coil, an electromagnet and a tripping spring. In addition, for the switching-on repulsion coil, the fixed repulsion coil and the tripping repulsion coil as well as the supply circuit of the electromagnet, a device allowing hand power generation can be arranged.

The invention discloses an automatic switching-on device of a circuit breaker. The automatic switching-on device comprises a shell as well as a transmission mechanism and an electronic control mechanism arranged in the shell, wherein transmission mechanism comprises a positive and negative rotation motor, a transmission central shaft, a transmission gear and a driving gear which is used for driving the circuit breaker and is linked with a handle, a first transmission piece is arranged on the transmission central shaft in a free rotation manner, a second transmission piece fixedly linked with the transmission central shaft is arranged on the transmission central shaft and below the first transmission piece, a linkage check block is arranged on one side of the second transmission piece, relative to the anticlockwise rotation direction of the first transmission piece to form the matching structure that the first transmission piece and the second transmission piece are linked in the anticlockwise direction and are independent in the clockwise direction; and the electronic control mechanism controls the positive rotation, the negative rotation and stopping of the positive and negative rotation motor, realizes the rotation switching on of the driving gear, and then is separated from the positive and negative rotation motor. The automatic switching-on device has the advantages that the automatic switching on is realized, the normal separating of the circuit breaker can not be affected, the safety is good and the like.

The presented valve (1) is based on two axially adjustable sleeve-shaped valve seat rings (14, 36) that are associated with locking arrangements in the form of annular armature plates (22, 35) and associate holding coils (24, 36). The valve closure member (39) can be variably adjusted via a position adjustment drive. Said valve closure member has a double function. On the one hand, it acts to move the valve seat rings (14, 26) into locking position and, on the other hand, it acts to control the gas flow.

There is disclosed a sanitary tampon including an absorber including: an absorbent layer made of an absorbent fibrous material; and a hydrophobic liquid-permeable layer covering the absorbent layer. The absorber is formed firstly into a flat shape and then into a column shape. The absorbent layer forming the flat absorber is formed with a plurality of small recesses which open in the surface of the absorbent layer and extend into the absorbent layer.

A moulding device for the production of containers in thermoplastic material, by blowing or blow-drawing, including a mould with two mould halves mutually mobile and provided with a locking device with two lock elements extending over the total height of the respective mould halves and provided with a number of projecting fingers in catches spaced at intervals, one lock element being fixed on one mould half and the other lock element sliding on the other mould half under the action of an actuator device.

A camera module 1 of the present invention includes a moving magnet type mechanical shutter 2 and a lens unit 3 (lens drive section) for driving a lens by electromagnetic force. A magnetic field for driving the lens is set so that a light path is closed by a shutter fin while a magnetic field leaked from the lens unit 3 is acting on a drive mechanism of the mechanical shutter 2. With the configuration, the leak magnetic field leaked from the lens unit 3 causes the light path to be closed at a faster speed by the shutter fin of the mechanical shutter 2. Accordingly, generation of a smear can be prevented by the camera module including the lens drive section and the moving magnet type mechanical shutter, which are driven by the electromagnetic force.

The invention relates to an intelligent lamp control method and device. The method comprises that present state information of a terminal is obtained; whether the terminal is in a preset state is determined according to the present state information; when the terminal is in the preset time, whether present time is in a preset time period is monitored; and when the present time is in the preset time period, a control instruction is sent to an intelligent lamp and used to control the work state of the intelligent lamp. According to the technical scheme of the invention, the intelligent lamp can be rapidly automatically switched on or off by monitoring the state and time of the terminal, and convenience is provided for users.

An exemplary device and method for providing electric service are disclosed. The exemplary device may provide construction power during the construction of a facility and permanent power at the facility thereafter. The electric service device, when energized at a construction site, is operable to provide construction power through an electrical outlet at the device during construction of the facility and to provide metered or unmetered permanent power at the facility thereafter.

A turbine shroud segment attachment with a casing (1) and several shroud segments (2) arranged in the casing (1), wherein the individual shroud segments (2) are located in the casing (1) with a circumferential clearance (3) between the individual shroud segments (2), in that the clearance (3) is reduced to zero at a given temperature difference between the casing (1) and the shroud segments (2), and in that the shroud segments (2) are retained on the casing (1) by way of an elastically deformable locating arrangement.

A threshold-free civil defense door of a doorway comprises door leaves, a doorframe, a lock and a hinge. A sealing beam and a sealing beam lifting mechanism are arranged under each door leaf, and each sealing beam is a turning type sealing beam and comprises a hinge base fixedly connected onto the back surface of the corresponding door leaf, a rocker hinged to the hinge base, a turning beam fixedly connected onto the rocker, a ground sealing member fixed on the turning beam and matched with the ground and a door leaf sealing member fixed on the turning beam and matched with the corresponding door leaf. Each sealing beam lifting mechanism comprises a reversed-L-shaped vertical connection rod, a crank, a shaft base, a bearing, a sealing beam lifting mechanism transmission shaft, a reversing speed changer and a sealing beam lifting handle. The threshold-free civil defense door of the doorway facilitates passing in ordinary time due to the fact that no above-ground threshold is arranged, can be closed in place fast in war so as to achieve functions of protection and closeness, is suitable for protection and closeness of the doorway of civil defense staff and vehicles and has the advantages of being reasonable in structure, convenient to use, easy to operate, flexible to open and close, economic and practical and convenient to maintain.

An automatic concentration adjusting and controlling early warning method for underground gas extraction pipelines includes (1) integrally assembling a signal acquisition unit with an actuating unit and mounting the signal acquisition unit and the actuating unit onto a gas extraction pipeline; (2) operating the actuating unit and determining the longest negative pressure lag time between pipeline gas concentration and extraction negative pressure and the highest pipeline gas concentration; (3) setting early warning gas concentration and early warning negative pressure lag time according to the obtained longest negative pressure lag time and the obtained highest pipeline gas concentration; (4) acquiring a current gas concentration value and a current negative pressure value in real time; promoting that the highest pipeline gas concentration is mistaken if the current gas concentration value is higher than the highest pipeline gas concentration, and actuating the step (2) again; keeping opening of an electric valve unchanged if the current gas concentration value is smaller than the highest pipeline gas concentration but larger than a set early warning gas concentration value; and alarming if the current gas concentration value is smaller than the set early warning gas concentration value, simultaneously searching the best extraction negative pressure, and then continuing extracting gas under the condition of the best extraction negative pressure; and (5) periodically repeating the step (2), the step (3) and the step (4) after a system runs normally.

A fuel injection apparatus having a fuel injector fed by a high-pressure fuel source and having an injection valve with injection nozzles associated with coaxial inner and outer nozzle needles can be actuated in a pressure-dependent manner to open and close various injection cross sections at the injection nozzles. A pressure surface of the outer nozzle needle is associated with a closing chamber. To actuate the outer nozzle needle, a first on/off valve can connect the closing chamber to a low-pressure/return system. The inner nozzle needle has a control piston whose pressure surface protrudes into a second control chamber, and a second on/off valve is can connect the control chamber to the low-pressure/return system so that when the second on/off valve is actuated, the pressure is relieved in the second control chamber. This permits a separate actuation of the outer nozzle needle and inner nozzle needle.

A fuel injection system for internal combustion engines with a fuel injector that can be supplied from a high-pressure fuel source has an injection valve, with injection nozzles pointing toward the combustion chamber, and coaxial inner and outer nozzle needles assigned to the injection nozzles are triggerable as a function of pressure to open and close various injection cross sections at the injection nozzles. Each of the nozzle needless is assigned a respective damping piston, and the damping pistons are movable relative to one another and act on a damping chamber which can be made to communicate with a low-pressure return system via an outlet throttle. In addition to the damping chamber, a closing chamber is provided, to which an end face of the outer nozzle needle is exposed in the closing direction. The closing chamber can be made to communicate with the low-pressure return system as well, via a closing chamber throttle; the outlet throttle has a greater throttling action than the closing chamber throttle, so that the pressure in the closing chamber drops first, and only after a delay does the pressure in the damping chamber drop as well.