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35results about How to "High transmission rate" patented technology

Lever ratchet wheel linkage bicycle

InactiveCN101973355ASolve the alternating movement of up and downResolve connectionWheel based transmissionRider propulsionTurning framesEngineering
The invention discloses a lever ratchet wheel linkage bicycle, comprising a bicycle frame, a front bicycle wheel, a rear bicycle wheel, a rear wheel shaft and a bicycle wheel drive device, wherein, the bicycle wheel drive device comprises a left lever and right lever up-to-down conversion device and a left ratchet wheel and right ratchet wheel drive device, wherein, the left lever and right left up-to-down conversion device comprises a lever, a lever connector, a frame connector, a sun wheel, a planet wheel, a gear ring and a central shaft; and the left ratchet wheel and right ratchet wheel drive device is a friction-type ratchet wheel mechanism comprising a roller, a slope-type one-way clutch, a ratchet wheel hub and a ratchet wheel connector. In the invention, the drive, speed change and the acting force are wholly centralized on the rear wheel shaft to lead the length of the lever to be 3-5 times of a crank mechanism; the lever can be retracted; a seat cushion can be moved front and back; the pedal rotating angle of both feet is changed to form the action of stepless speed regulation; and the speed is changed by a star wheel structure, so as to lead the transmission to be compact and the operation to be reliable. The invention provides a bicycle which is brand new, has simple structure, high transmission rate, long service life, low failure rate, convenient maintenance and comfort and stable riding.
Owner:NANTONG BAOTIAN PACKING MACHINERY

Periodic permanent-magnet focusing system capable of regulating magnetic field and klystron

InactiveCN105551915AFlexible adjustment of the magnetic fieldHigh precision of magnetic field adjustmentKlystronsKlystronElectron injection
The invention provides a periodic permanent-magnet focusing system capable of regulating magnetic field and a klystron. The periodic permanent-magnet focusing system comprises an electromagnetic coil adjustment device and a periodic permanent-magnet focusing device, wherein the electromagnetic coil adjustment device comprises N coils and a support shell, the N coils are arranged in an accommodating cavity of the support shell, and an outer-side coil pole shoe of the electromagnetic coil adjustment device is fixedly connected with one end of the periodic permanent-magnet focusing device. The electromagnetic coil adjustment device is arranged on a transition region of the klystron, so that an incident angle of an electron beam is matched with a periodic permanent-magnet focusing magnetic field, and the defect that the magnetic field of a traditional permanent-magnet focusing system cannot be regulated or is not convenient to regulate is overcome; a current value of the coil can be independently adjusted, the magnetic field is more flexible in regulation, and the regulation accuracy is higher; the klystron is provided with the periodic permanent-magnet focusing system and is high in beam quality; and the electromagnetic coil adjustment device is further arranged at the rear end of the periodic permanent-magnet focusing device, the transmission state of the electron beam can be adjusted, and relatively high electron beam transmission passing rate can be acquired.
Owner:INST OF ELECTRONICS CHINESE ACAD OF SCI

Long reach unamplified optical SONET/SDH card

An assembly, method, and device for high-speed optical format data transmission includes a printed circuit board containing mounting locations for electrical components, optical components, and a heatsink device. A tray may also be mounted on the printed circuit board to route optical fiber to various components. The heatsink is positioned at a predetermined height above the printed circuit board so that it physically contacts the electrical and optical components that require cooling. The printed circuit board may include one or more openings in which one or more of the electrical or optical components that are significantly taller than the other components are embedded. The heatsink may also include one or more openings in which one or more of the taller electrical or optical components are positioned. Additional compliant heat conductive material may be placed between the top of one or more electrical or optical components and the heatsink when the components are not as high as the position of the heatsink. Material may also be removed from the bottom of one or more portions of the heatsink to accommodate one or more of the electrical or optical components that are slightly higher than the position of the heatsink. The layout of the printed circuit board assembly includes positioning the electrical and optical components for receiving data on one section of the printed circuit board, while the electrical and optical components for transmitting data are positioned on another section of the printed circuit board. The electrical and optical components that are sensitive to temperature variation are positioned near the portion of the printed circuit board that receives the greatest amount of cooling.
Owner:CISCO TECH INC

Lever reciprocating driving mechanism and bicycle comprising same

The invention discloses a lever reciprocating driving mechanism and a bicycle comprising the same. The lever reciprocating driving mechanism comprises a lever reciprocating driving device, a driving rod vertically-crossing motion device and a speed changing device. The driving rod vertically-crossing motion device comprises a left driving rod, a right driving rod, a mandrel, a positive and negative rotating wheel, a reversing wheel, a reversing wheel shaft, a stay cord moving back and forth, a reversing wheel fixing plate and a rear wheel shaft. The left driving rod and the positive and negative rotating wheel are respectively fixed at two ends of the mandrel, the mandrel is installed in the rear wheel shaft, the mandrel is installed in the rear wheel shaft, bearings are installed on inner circles at two ends of the rear wheel shaft, and the mandrel, the left driving rod and the positive and negative rotating wheel rotate freely in the rear wheel shaft. The right driving rod is movably connected with the rear wheel shaft, the reversing wheel is movably connected with the reversing wheel shaft, two ends of the reversing wheel shaft are respectively fixed with the reversing wheel fixing plate and a frame connection body, the stay cord moving back and forth is wound on the reversing wheel, two ends of the stay cord are fixed with the positive and negative rotating wheel and the right driving rod, and the reversing wheel fixing plate is fixedly connected with the reversing wheel shaft and movably connected with the mandrel respectively. The lever reciprocating driving mechanism and the bicycle are simple in structure, high in transmission efficiency and convenient to maintain.
Owner:胡章地

Lever ratchet wheel linkage bicycle

The invention discloses a lever ratchet wheel linkage bicycle, comprising a bicycle frame, a front bicycle wheel, a rear bicycle wheel, a rear wheel shaft and a bicycle wheel drive device, wherein, the bicycle wheel drive device comprises a left lever and right lever up-to-down conversion device and a left ratchet wheel and right ratchet wheel drive device, wherein, the left lever and right left up-to-down conversion device comprises a lever, a lever connector, a frame connector, a sun wheel, a planet wheel, a gear ring and a central shaft; and the left ratchet wheel and right ratchet wheel drive device is a friction-type ratchet wheel mechanism comprising a roller, a slope-type one-way clutch, a ratchet wheel hub and a ratchet wheel connector. In the invention, the drive, speed change and the acting force are wholly centralized on the rear wheel shaft to lead the length of the lever to be 3-5 times of a crank mechanism; the lever can be retracted; a seat cushion can be moved front and back; the pedal rotating angle of both feet is changed to form the action of stepless speed regulation; and the speed is changed by a star wheel structure, so as to lead the transmission to be compact and the operation to be reliable. The invention provides a bicycle which is brand new, has simple structure, high transmission rate, long service life, low failure rate, convenient maintenance and comfort and stable riding.
Owner:NANTONG BAOTIAN PACKING MACHINERY

Lever reciprocating drive mechanism and bicycle including same

The invention discloses a lever reciprocating driving mechanism and a bicycle comprising the same. The lever reciprocating driving mechanism comprises a lever reciprocating driving device, a driving rod vertically-crossing motion device and a speed changing device. The driving rod vertically-crossing motion device comprises a left driving rod, a right driving rod, a mandrel, a positive and negative rotating wheel, a reversing wheel, a reversing wheel shaft, a stay cord moving back and forth, a reversing wheel fixing plate and a rear wheel shaft. The left driving rod and the positive and negative rotating wheel are respectively fixed at two ends of the mandrel, the mandrel is installed in the rear wheel shaft, the mandrel is installed in the rear wheel shaft, bearings are installed on inner circles at two ends of the rear wheel shaft, and the mandrel, the left driving rod and the positive and negative rotating wheel rotate freely in the rear wheel shaft. The right driving rod is movably connected with the rear wheel shaft, the reversing wheel is movably connected with the reversing wheel shaft, two ends of the reversing wheel shaft are respectively fixed with the reversing wheel fixing plate and a frame connection body, the stay cord moving back and forth is wound on the reversing wheel, two ends of the stay cord are fixed with the positive and negative rotating wheel and the right driving rod, and the reversing wheel fixing plate is fixedly connected with the reversing wheel shaft and movably connected with the mandrel respectively. The lever reciprocating driving mechanism and the bicycle are simple in structure, high in transmission efficiency and convenient to maintain.
Owner:胡章地
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