640results about How to "Simple and reliable structure" patented technology

A reciprocating electric razor head includes a fixed blade and a fixed blade support for supporting and fixing the fixed blade. The fixed blade is provided with hair entrance holes for body hair to enter, and an inner side of the fixed blade is provided with a movable blade capable of moving backward and forward in a reciprocating manner relative to the fixed blade to cut off the body hair inside the hair entrance holes, such that the fixed blade obtains a very flat cutting working face contacting the movable blade without the need for additional precision machining.

A downhole flow pulsing device comprises a housing connected in series with a drill string and a valve with a rotating portion in the housing arranged to vary an area of a flow passage through the housing. A fluid actuated positive displacement motor drives rotation of the valve. A drive link permits the rotating portion of the valve to be optionally coupled directly to the motor of the drill string. The valve includes radially oriented rotating ports intermittently communicating with surrounding fixed ports and a bypass channel. Axial displacement of the rotating ports relative to the fixed ports and bypass channel permits amplitude of the downstream fluid pulses to be adjusted. The valve includes a number of circumferentially spaced ports which differs from a prescribed number of pressure fluctuations in the fluid for each full rotation of the rotor of the drill motor.

The invention relates to photovoltaic solar power systems and more specifically to solar photovoltaic systems which include concentrators of solar radiation. The invention includes application of single curvature and compound-curvature concentrators. A supporting member with an installed photovoltaic cell serves as an element in a heat sink unit and, at the same time, as a detail of a tracking mechanism. It allows to construct a cheap and reliable photovoltaic solar power system.

A human body implant structure includes: a support anchor which is embedded into a bone body; a support base which is placed on and fixed to an upper portion of the support anchor; and a lost-part compensation part which is mounted on an upper portion of the support base, wherein the support anchor and the support base are configured to be detachably fitted to each other by way of the taper fitting structure where the support anchor and the support base are brought into close contact with each other, and a stepped portion which is formed of an upper surface of the support anchor is formed on a boundary between a female threaded hole which is vertically formed in the support base and a vertical hole formed in the upper surface of the support anchor.

A bipolar zero-gap electrolytic cell comprising an anode comprising an anode substrate constituted of a titanium expanded metal or titanium metal net of 25 to 70% opening ratio, which anode after coating the substrate with a catalyst has a surface of 5 to 50 μm unevenness difference maximum and has a thickness of 0.7 to 2.0 mm. In this electrolytic cell, the possibility of breakage of ion exchange membrane is low, and the anolyte and catholyte have a concentration distribution falling within given range. With this electrolytic cell, stable electrolysis can be performed for a prolonged period of time with less variation of cell internal pressure.

The invention provides a double disc gate valve where the discs are movable in a casing by a disc manipulation structure which can change an orientation of at least one of the valve discs relative to the centre plane away from an initial orientation by movement of an outer disc carrier relative to an inner disc carrier. The relative movement between the disc carriers is initiated automatically during opening and closing of the valve. The change in orientation facilitates sealing between the discs and valve seats by a gradually established contact between the discs and the seats and the required opening and closing force may therefore be reduced.

A compact, thinned and water-tightened combined switch, is structured by a single switch comprising a front sheet having a domed projection which can be reversed to the back side and is provided at the back side with an electrode, an electric circuit body having an electric contact to contact with the electrode and a domed convex portion provided in the vicinity of the center of the domed projection. In operation process, firstly the projection is reversed and an electrode provided near the periphery of the convex portion contacts with the electric contact on the electric circuit body and secondly an electrode provided in the vicinity of the center of the domed convex portion contacts with the electric contact on the electric circuit body.

An impulse-type underground supercharged jet drilling method and device is provided. The impulse-type underground supercharged jet drilling method uses up and down vibrations of a drill string or weight on bit variation during the drilling process, so that an upper joint connected to the drill string drives a housing and a supercharging cylinder block to move up and down relative to a supercharging piston, while the supercharging piston, a high pressure line, and a drive shaft disposed outside the high pressure line make a reciprocally retractable movement relative to the housing. As a result, some working fluid entering the supercharging cylinder block is intermittently supercharged, and discharged from a high pressure fluid passage disposed in the supercharging piston and the high pressure line. The present disclosure can effectively perform an underground supercharging to parts of the drilling fluid, thus improving the rock breaking efficiency and the drilling speed.

The present invention discloses a sunshade umbrella capable of adjusting umbrella surface angle, including an upright rod and an upright rod handle which moves up and down along the upright rod, wherein one end of the upright rod is connected with umbrella base, the other end of the upright rod is hinged with the connecting rod, the other end of the connecting rod is hinged with a circumferential fixed hanger rod, the hanger rod is hinged with the upright rod handle, an umbrella surface angle adjusting device is mounted on one end of the hanger rod, an executing device that takes the circumferential movement around the hanger rod is mounted on the other end of the hanger rod, and the executing device is connected with an upper umbrella plate. This umbrella has the following advantages: increased overall firmness of the sunshade umbrella, simple structure, and is convenient to operate.

The invention discloses a small leakage detection system for a liquid pipeline and relates to the technical fields of tests not included in other classes, acoustic wave measurement and pipeline systems. On the premise of not changing technological processes of current pipelines, a leakage detection ball is sent out by a pipe cleaner ball sending device and flows along with a medium in the pipeline; meanwhile, acoustic signals inside the pipeline and state information of the leakage detection ball are acquired, stored and tagged with time labels; after the leakage detection ball is collected back from a ball collecting bucket, the small leakage detection system is connected with an upper computer, so that the acoustic information stored in the pipeline and the state information of the leakage detection ball are obtained; the obtained acoustic information is directly displayed in an oscillograph on the upper computer; except a ball sending bucket and the ball collecting bucket, if an acoustic amplitude is higher than that of noise in the pipeline, the corresponding time is judged to be the leakage point and recorded; according to the recorded time of the leakage point, the state information of the leakage detection ball is subjected to quadratic integral so as to obtain displacement of the leakage detection ball relative to the ball sending bucket, namely the leakage position. The small leakage detection system for the liquid pipeline can detect small and even tiny leakages and is high in sensitivity.

An oceanic wave energy utilization system includes a floating energy collection device (1), an energy transfer device (2) and an energy conversion device (4). The floating energy collection device is connected to the energy conversion device via the energy transfer device. The floating energy collection device is made up of a hull-shaped float and a float limitation device. Vertical energy collection plates (101) are arranged at the underside of the float, while the energy transfer device is made up of a fixed seat and an energy transfer rod, said fixed seat being fixed at shore-side or at the seabed and movably connected to the energy transfer rod. The energy transfer rod is movably connected to the floating energy collection device and to the energy conversion device.

An oil-saving boosting unit able to recover the braked kinetic energy for car features that the additional mechanical structure and simple hydraulic system are additionally installed to the output axle of speed variator or drive axle. When the car is braking, its inertia can drive oil pump to become the pressure energy of fluid and store it in energy accumulator. When the car is driven or accelerated, the energy is released via the same mechanism. An enclosed leather bag type oil tank and a simple hydraulic system are used.

A hinge construction for a wing mirror unit for a motor vehicle is proposed that comprises a first hinge part for mounting on the motor vehicle and a second hinge part, pivotably connected therewith via a shaft. The second hinge part supports a mirror frame of the wing mirror unit, wherein the shaft is connected with one hinge part and wherein the other hinge part is arranged pivotably about the shaft. The mirror frame has a location guide that corresponds with a location rib of a power fold module that is inserted into the frame.

The invention relates to an internal combustion engine and a valve drive unit thereof. The internal combustion engine comprises a plurality of cylinders. At least one cam shaft is rotatably supported in order to operate ventilating valves of the cylinders of a cylinder set, and one sliding cam allowing axial sliding is arranged on the cam shaft corresponding to each cylinder. A common actuator (7) is provided for all the sliding cams (2a, 2b, 2c) so that the sliding cams (2a, 2b, 2c) supported on the cam shaft (1) in an axially slidable manner can slide axially.

The invention relates to a functional chair taking ergonomics as basis and in particular relates to an ergonomics-based functional chair for old people, which is suitable for most people and are particularly suitable for old people. The ergonomics-based functional chair mainly comprises a chair back, a chair seat and a base, which are mounted in sequence, and further comprises hoisting elbow guarding mechanisms, a clamping and supporting mechanism and a control device; the chair back sleeves a chair back framework through an outer sleeve layer to form an external outline; the main body of the outer sleeve layer is of an inward-concave arc-shaped structure, and the inner part of the outer sleeve layer mainly comprises a back massaging device, a head massaging device and a chair back adjusting device; the chair seat is mainly composed of a leg massaging device and a stretchable and foldable adjusting device; the hoisting elbow guarding mechanisms are arranged at the left and right sides of the chair seat; the clamping and supporting mechanism is arranged on the hoisting elbow guarding mechanism at the right side of the chair seat. The ergonomics-based functional chair provided by the invention integrates a comfortable chair and a massaging chair and is particularly suitable for old people or people with disabilities to use, so as to ensure that people can safely and conveniently take a seat on and stand up from the chair, and a massaging function is soft and comfortable.