107results about How to "Avoid snapping" patented technology

The device (100) comprises a semiconductor material substrate (10) having a first surface and an opposite second surface (1, 2), and a microelectromechanical (MEMS) element (50) provided with fixed electrodes and movable Movable electrodes (52, 51) are located in the cavity (30). One of the electrodes (51, 52) is defined in the substrate (10). The movable electrode (51) is movable toward and from the fixed electrode (52) between a first gap position and a second position. The cavity (30) is opened by a hole (18) in the substrate (10), said hole (18) being exposed on the second surface (2) of the substrate (10). The cavity (30) has a height defined by at least one post (15) in the base plate (10), which substantially surrounds the cavity (15) laterally.

The present invention provides a vehicle drive device which can generate a desired yawing moment when left and right reverse torque control is carried out and control first and second motors to be at any target rotating speed simultaneously. A back-wheel drive device is equipped with a left-wheel drive unit possessing a first motor and a first planetary gear reducer arranged on the transmission paths of the first motor and a left back-wheel; a right-wheel drive unit possessing a second motor and a second planetary gear reducer arranged on the transmission paths of the second motor and a right back-wheel; and a control unit. The first motor is connected with a sun gear of the first planetary gear reducer, and the second motor is connected with a sun gear of the second planetary gear reducer; the left back-wheel is connected on a planetary gear carrier of the first planetary gear reducer, the right back-wheel is connected on a planetary gear carrier of the second planetary gear reducer, and inner gears are connected with each other.

The invention aims at providing a webbing retractor capable of realizing miniaturization of a rotation body. Wherein, a V-shaped gear is connected at a spool in a mode of capability of rotation with the spool, pawls ELF are disposed at the V-shaped gear. When the V-shaped gear rotates in the pulled-out direction and a W paw is relatively displaced with respect to the V-shaped gear, a lock piece limits rotation of the spool in the pulled-out direction. Additionally, via rotation of the V-shaped gear in a retraction direction, an engaging portion of ratchet teeth is engaged with the W pawl, and the pawls limit displacing of the W pawl with respective to the V-shaped gear caused by resulting from rebound of the stopping of the retraction of the webbing. Herein, due to rotation of the V-shaped gear in the pulled-out direction, the engagement of the engaging portion with the W pawl is released as the engaging portion is displaced toward a radial direction inside of the V-shaped gear. Therefore, miniaturization of the V-shaped gear can be realized without disposing of a space for displacement of the engagement portion at the engagement position of the W pawl and the engagement portion toward the radial external side of the V-shaped gear.

The invention provides a water storage device located at a floor drain of a house. The water storage device at the floor drain of the house comprises a limiting sleeve, a connecting pipe, a sealing structure, a first filter structure, a second filter structure and a drainage structure, wherein the second filter structure comprises two water storage sleeves, a positioning rod, a filter sleeve, a second limiting ring, a plurality of first anti-blocking blocks, a plurality of anti-blocking teeth and a plurality of drainage holes, the second limiting ring is clamped with the connecting pipe, the filter sleeve for filtering hair is fixed to the second limiting ring, the multiple first anti-blocking blocks are arranged on the inner surface of the latticed filter sleeve of a hemispherical structure in a staggered mode, and the multiple anti-blocking teeth are linearly distributed on the first anti-blocking blocks; and the drainage structure comprises a plurality of through holes, a third limiting ring, a reset spring, a sliding rod, a sealing plug and a check block. The water storage device at the floor drain of the house has the advantages that a pipeline in a bathroom is automatically sealed conveniently, anti-blocking performance is good, and the hair is convenient to clear.

A tie-down eye (1) for a cargo space of a motor vehicle has an annular loop (3) pivoted on a mount (2) that is formed with a journal part wrapped around a portion of the loop, and the mount and the loop are secured in a frame element (5) fixed in a floor of the cargo space. The loop, which serves for attachment of securing straps, retaining ropes, retaining nets, or similar load-securing elements on or against the cargo surface can pivot between a nonuse position recessed in the frame element and use position projecting upward therefrom. The mount is formed with a cutout (6) in its journal part (4) wrapped around the loop, and a projection (7a, 7b) extending radially from the loop extends through this cutout and bears against an inner peripheral edge (8) of the cutout when in the use position.

The invention discloses an operating mechanism of a vacuum circuit breaker. The operating mechanism comprises an arc extinguishing chamber, one side of the arc extinguishing chamber is provided with astatic contact, a moving contact is arranged on the other side of the arc extinguishing chamber, an arc extinguishing partition plate is arranged at the position, close to the joint of the moving contact and the static contact, of the arc extinguishing chamber, an annular groove used for installing the arc extinguishing partition plate is formed in the arc extinguishing chamber around the perimeter of the arc extinguishing partition plate, and the arc extinguishing partition plate penetrates through the arc extinguishing chamber along the annular groove to be connected with a push plate assembly; the moving contact comprises a contraction part which is arranged at one end close to the static contact, and a wrapping part used for wrapping the contraction part; and the push plate assembly pushes the arc extinguishing partition plate to move towards the joint of the static contact, and the arc extinguishing partition plate pushes the contraction part to contract and move towards the interior of the wrapping part. The push plate assembly drives the arc extinguishing partition plate to move towards the joint of the moving contact and the static contact, thereby separating the moving contact from the static contact through the acting force of the arc extinguishing assembly, and achieving the switching-off effect of the moving contact and the static contact.

The invention provides a well-qualified clamping device which presses, with high operational efficiency, a clamping tube in one operation in a manner of preventing the tube from transverse deviation, avoids deviation at the time of engagement between a locking projecting portion and a locking groove portion, and improves rate of finished products and shortens finishing period by reducing cost of moulds so as to realize reduction of the cost. In the clamping device of the invention, inner sides of an upper end (11) and a bottom (12) include a first projecting portion (21) and a second projecting portion that are opposite to each other, and also includes a downwards-extending pressing portion (23) nearby, a front end (24) of the pressing portion (23) is formed with square or quadrate projections (23a), (23b) in a crotched manner. Further, the bottom (12) in an extending direction of the pressing portion (23) includes a incision portion (17).

The invention relates to the technical field of double-screw extruders, and discloses a double-screw extruder for cable material production, which comprises a workbench. According to the double-screw extruder for cable material production, through the arrangement of a crushing box, when the double-screw extruder is used, two servo motors are started to rotate in opposite directions, output shafts of the servo motors rotate to drive a movable shaft, a roller and a cutter device to rotate along with the servo motors, at the moment, feeding is conducted through a feeding pipe, plastic particles fall into the crushing box through the feeding pipe, and then the plastic particles are crushed; and through rotary clamping of the cutter device, a cutter cuts up all plastic particles, the cut-up plastic particles naturally fall into a double-screw extruder body below and are shaped through the double-screw extruder body, a cleaning brush cleans the plastic particles adhering to the cutter device on the side face, and at the moment, a limiting ring plays a limiting role, so that the plastic particles are completely cut up through the cutter device, cleanness of the cutter device is guaranteed, the cutter device is prevented from being clamped, use is easy, and operation is more convenient.

The invention provides an anti-beating method based on a generator controller of an aircraft power supply system. A working voltage 28V of the generator controller and a generator rotating speed valueare collected by hardware, whether the controller is normally powered off is judged in software, if the controller is not normally powered off, a fault symbol and a fault code are set, and the powersupply system is prohibited from generating power and importing the power into a grid during the next power-on, thereby effectively solving the problem of beating of a main contactor caused by the power supply instability in the prior art and improving the safety and reliability of the power supply system.

The invention discloses a vertical shaft impact crusher. The vertical shaft impact crusher comprises a crusher body, a base, a stirring mechanism, a first crushing mechanism and a second crushing mechanism, the base is fixedly installed at the lower end of the crusher body, a partition plate is fixedly installed at the position, close to the middle, in the base, a supporting seat is installed at the upper end of the partition plate, the stirring mechanism is installed at the position, close to the middle, of the upper end of the supporting seat, first supporting plates are slidably connected to the two sides of the stirring mechanism, third supporting plates are connected to the positions, close to the lower portions, of the interiors of the first supporting plates, and second supporting plates are fixedly installed on the sides, close to the stirring mechanism, of the first supporting plates. According to all aspects disclosed by the invention, the problem that the crushing effect is poor due to the influence of centrifugal force when the materials are thrown out of an impeller can be solved, and the problem that the crushing effect of the materials is poor due to the fact that the materials of different specifications are subjected to the same impact force because the materials of different specifications are not screened can be solved.

The invention relates to the field of optical fiber installation limiting devices, in particular to a big data optical fiber wire installation limiting device which comprises a fixing structure, a telescopic structure, a first angle adjusting structure, a guiding structure, a driving structure and a second angle adjusting structure. The arrangement of the telescopic structure facilitates the adjustment of the supporting height of an optical fiber wire, enables the supporting range of the optical fiber wire to be larger, and reduces the requirements for the installation position of a telegraphpole; through the arrangement of the driving structure, limiting of the telescopic structure can be done conveniently, and the telescopic structure is more stable after height adjustment; and one endof the telescopic structure used for adjusting the supporting distance is fixed to the second angle adjusting structure, the angle between the telescopic structure and the fixing structure can be conveniently adjusted through the second angle adjusting structure, the supporting angle of the optical fiber wire in the vertical direction can be conveniently adjusted to be changed, and the supportingrange of the optical fiber wire is larger; and meanwhile, the optical fiber wire with different angles can be conveniently supported and guided, and the operation flexibility of optical fiber wire fixing is improved.

The invention relates to the technical field of train swing bolster machining, and discloses a train swing bolster clamping device facilitating positioning. A base is included and comprises a cross beam and two end seats, the two end seats are fixedly welded to the two ends of the top of the cross beam correspondingly, guide holes are formed in the two end seats correspondingly, and movable seatsare arranged in the guide holes. A sliding block is arranged on the inner wall of each guide hole, a sliding groove matched with each sliding block is formed in the side face of the corresponding movable seat, and a position adjusting device is arranged at the bottom of one end of each movable seat. According to the train swing bolster clamping device easy to position, the two ends of a swing bolster are placed on two L-shaped pressing plates, then air cylinders are started to drive movable pressing plates to rotate so that the swing bolster can be pressed and positioned, a motor is started todrive a worm to rotate, then a worm wheel and a rotating shaft are driven to rotate, and the swing bolster can be driven to rotate to a proper angle; and compared with the prior art, using is more convenient, applicability is higher, the machining efficiency is improved, and manpower is saved.

The invention discloses a main oil pressure electromagnetic valve maintenance tool and a using method thereof. The main oil pressure electromagnetic valve maintenance tool comprises a valve fixing base A, a valve fixing base B, a quick release sleeve, an expansion shaft, a necking sleeve and a core rod, wherein the valve fixing base A and the valve fixing base B are used for fixing a main oil pressure electromagnetic valve, the quick release sleeve is used for fixing the valve fixing base A and the valve fixing base B, the expansion shaft is used for expanding an opening of a shell of the main oil pressure electromagnetic valve, the necking sleeve is used for tightening the opening of the shell of the main oil pressure electromagnetic valve, and the core rod is used for ejecting out an internal component of the main oil pressure electromagnetic valve. A valve fixing groove A is formed inside the valve fixing base A. A valve fixing groove B is formed inside the valve fixing base. A guiding hole is formed in the center of the upper portion of the buckled structure of the valve fixing base A and the valve fixing base B. An annular clamping boss is arranged at the bottom of the inner side face of the quick release sleeve. An extending shaft is arranged at the lower portion of the expansion shaft. An annular heightening table is arranged at the upper position of the inner side of the necking sleeve. A compressing die opening is formed inside the necking sleeve. A flaring groove is formed in the lower portion of the necking sleeve. An ejector shaft is arranged on the lower end face of the core rod. The main oil pressure electromagnetic valve maintenance tool has the advantages of being simple in structure and convenient to use.

The invention discloses an intelligent logistics conveyor for flexible dynamic centralized reorganization and storage of a warehouse. The conveyor comprises a stand plate column block, a lifting hooklug base, a sucker slide measuring frame groove, an auxiliary bonding frame, a fork frame support plate, a clamping buckle power arm and a moving wheel; through cooperation of the sucker slide measuring frame groove and the fork frame support plate, forklift robots with the same sizes form consistent size wrapping degrees of hoisting goods to place and unload in cell shelves; a cross scanning armis matched for slide scanning to achieve the effect of checking the package sizes in a lens ratio; an integrated plate manually programs motion programs beforehand to prevent the work collision and tofill the loophole of insufficient system size collection; and then, the hoisting of the whole frame forms clamping of a lifting extension degree through staggered stretching of the auxiliary bondingframe in a backup plate groove, so that the base damping force stability is guaranteed, the goods hoisting protectiveness is improved, the shaking is prevented, and a flexible dynamic centralized reorganization and storage system for intelligent logistics conveying is optimized.

The invention discloses an arc extinguishing device of a vacuum circuit breaker. The arc extinguishing device comprises an arc extinguishing chamber, one side of the arc extinguishing chamber is provided with a static contact through a static conducting rod, the other side of the arc extinguishing chamber is provided with a moving contact through a moving conducting rod, and a corrugated sleeve issleeved on the moving conducting rod in the arc extinguishing chamber; and an arc extinguishing assembly is arranged in the arc extinguishing chamber and close to the joint of the moving contact andthe static contact. The arc extinguishing assembly comprises a guide ring groove formed in the arc extinguishing chamber; the guide ring groove is arranged around the perimeter of the arc extinguishing chamber; a partition plate is mounted in the guide ring groove; a pushing assembly is arranged in the guide ring groove; and the pushing assembly is in transmission connection with the moving conducting rod. The arc extinguishing assembly arranged between the moving contact and the static contact provides an arc extinguishing effect for opening of the moving contact and the static contact so asto solve the technical problems that in the prior art, since a vacuum circuit breaker mainly depends on a vacuum arc extinguishing chamber for arc extinguishing, the arc extinguishing speed is low, and the contacts are prone to damage.

The invention belongs to the field of fluid valves. A Tesla valve convenient to clean comprises a main body (1), a scraper blade (2), a cover plate (3) and a handle (4), wherein the scraper blade (2)is mounted in a first groove (1-1); the side wall of the scraper blade (2) is completely matched with the side wall of a groove cavity of the first groove (1-1) to form movable seal; the scraper blade(2) can move up and down in the first groove (1-1); a connecting column (2-1) of the scraper blade (2) penetrates through a connecting hole (3-1) of the cover plate (3); and the tail end of the connecting column (2-1) of the scraper blade (2) is fixedly connected with the handle (4). A fluid control system adopts the Tesla valve convenient to clean as a one-way valve. A chemical device adopts theTesla valve convenient to clean as a one-way valve for controlling the flow direction of fluid in the device. The Tesla valve convenient to clean is convenient to operate, reduces the maintenance time, reduces the damage probability, saves the manpower, and provides a new technical thought.