41results about How to "Reduce force requirements" patented technology

A mechanical thrombectomy device system is disclosed that is made from a single piece of biocompatible material, including a proximal flow block portion/feature, and/or, a flow block feature in the device body portion, a guidewire like delivery portion and an expandable, treatment portion. The construction of the device from a single piece allows for a seamless transition from the delivery portion to the treatment portion, thus removing any joints or bonding of the two portions together as separate pieces. This improves the strength of the system as a whole and greatly reduces the possibility of the two parts unintentionally detaching from each other. Likewise, the distal treatment portion is cut from a piece of material the same size as the proximal delivery portion, allowing the device to be compacted to a similar size profile giving it delivery advantages including a lower delivery force required and requiring small access systems, and the treatment portion's surface can be altered to enhance embolus affinity by either coating with a substance or changing the texture by mechanical or chemical means.

The invention relates to a system and a method integrating road surface runoff collection, purification, storage and utilization for plants. A biological planting groove lower than a road surface is used for collecting and processing road surface runoff at an initial stage and formed by stacking a planting soil layer, an infiltration filtering layer, a supporting layer, a water storage layer, an impervious layer and the like from the top to the bottom. The road surface runoff at a later stage is collected in a level observing well separated in the groove through an overflowing groove on the side of the biological planting groove and can be discharged directly through a lateral wall water discharging pipe. The collected road surface runoff at the initial stage is calculated according to an area rainstorm intensity formula and collecting time, and on the basis of the calculated road surface runoff at the initial stage, filling material texture and thickness, soil infiltration capacity, a soil surface distance and an overflow distance are combined to distribute filling materials of the planting soil layer and the water storage layer. Storage water is extracted by an extraction device and utilized for road surface plants. The system and the method are applicable to collection, processing and comprehensive utilization of the road surface runoff which is at the initial stage and has a pollution effect and emergency management of a road environment under the condition of leakage of dangerous goods during transportation.

An electromagnetic operator includes first and second coils wound coaxially An armature partially surrounds the coils for channeling flux during energization of the coils. The armature may be formed of a bent plate and secured to a ferromagnetic support. A control circuit applies energizing signals to the coils during operation. Both coils are energized during an initial phase of operation. One of the coils is subsequently released or de-energized automatically. A timing circuit removes current from the second coil after a variable time period. The time period may be a function of the configuration of the timing circuit, such as an RC time constant, and of the energizing signal.

The invention discloses an embedded compound spinning frame. Two layers of unwinding brackets and four parallel unwinding rollers are arranged on an upright post of a creel; the unwinding rollers positioned on the same side of the unwinding brackets mutually drive and are connected by a vertical driving pair of the unwinding rollers; and at least one unwinding roller in the unwinding rollers on the same side of the unwinding brackets is in driving connection with a front roller of a drawing mechanism through an unwinding roller driving device. When in spinning, two rovings hung on the creel respectively enter a drawing area of the drawing mechanism in parallel through roving horn mouths for drawing; two unwound filaments roll from different unwinding rollers and respectively enter the rear side of a tong port of the front roller of the drawing mechanism through a filament guider; and the two filaments and two drawn rovings are combined on the rear side of the tong port of the same front roller, output and twisted from the front side of the tong port of the front roller and wound on a spinning tube of a spindle. The invention not only can conveniently spin short fibers and other low-grade raw materials, but also has the advantages of abundant yarn type structures, dry resultant slivers and superior filoplume indexes.

The invention discloses a fertilizer turning and throwing machine, which relates to the technical field of agricultural machinery manufacture. The fertilizer turning and throwing machine comprises a gate-type rack and a turning and throwing wheel installed on the gate-type rack by a rocker arm and a hinged shaft, wherein a lift cylinder is installed between the rocker arm and the gate-type rack. The fertilizer turning and throwing machine is characterized in that the hinged shaft is positioned in front of the turning and throwing wheel; the turning and throwing wheel is arranged on the rear part below the gate-type rack and is installed on the rear part of the inner side of the gate-type rack; the hinged position of the lift cylinder and the rocker arm is positioned behind the turning and throwing wheel; a driving motor is sheathed in one end of the turning and throwing wheel; the rear end of the gate-type rack is hinged with a material baffle plate; and an elevation cylinder used for regulating the rotating angle of the material baffle plate is arranged between the gate-type rack and the material baffle plate. Compared with the prior art, the fertilizer turning and throwing machine is characterized in that the turning and throwing wheel of the fertilizer turning and throwing machine is positioned behind the gate-type rack, which is beneficial to backwards turning and throwing the fertilizer, and the splashing distance of the fertilizer can be controlled by regulating the material baffle plate via the elevation cylinder.

The invention relates to an energy-saving vibration sieve, which comprises a sieve body, a support device and a vibration exciter, wherein the support device is used for supporting the sieve body, the vibration exciter is used for driving the sieve body to move relative to the support device, the sieve body is assembled on the support device along the horizontal direction in a guide moving way, the vibration exciter is provided with a vibration exciter output end used for outputting the horizontal displacement, an elastic device is arranged between the vibration exciter output end and the sieve body, in addition, the vibration exciter output end and the sieve body are in transmission connection through the elastic device, and the elastic device has the deformation direction consistent to the guide moving direction of the sieve body. During the work process, the vibration exciter moves in the horizontal direction, the sieve body and materials do not need to generate vertical movement through driving, and the working by overcoming the gravity is not needed. In addition, the elastic device realizes the buffer effect during the starting, the acting force requirements during the starting can be reduced, the energy can be stored in the operation, and the energy loss when the sieve body moves to the maximum stroke can be reduced, so the integral energy utilization rate is improved, and the energy consumption is reduced.

A limb protector for protecting a limb of a wearer from contact with water or other contaminant has a tubular member made from ultrathin plastic film. The ultrathin film enables the material around the opening to form a watertight seal around the limb without forming a venous tourniquet.

The invention relates to a hollow guide rail for guiding the running direction of an elevator. The hollow guide rail comprises a hollow guide rail body formed by integrally bending/rolling, a lift carand a counterweight are installed on the hollow guide rail body, and a counterweight running guide groove and a lift car running guide face which correspond to and are matched with a counterweight guide shoe on the counterweight and a lift car guide shoe on the lift car respectively in position are formed on the hollow guide rail body. The lift car and the counterweight are guided at the same time through the hollow guide rail, the lift car moves up and down through the lift car guide shoe under the guide effect of the lift car running guide face, the counterweight moves up and down through the counterweight guide shoe under the guide effect of the counterweight running guide groove, and the movement direction of the lift car is opposite to the movement direction of the counterweight. According to the hollow guide rail for guiding the running direction of the elevator, the elevator area utilization rate is increased, the vertical mounting times of a lift car guide rail and a counterweight guide rail on site are reduced, the vibration problem of the lift car in the running period caused by inconsistent guiding perpendicularity is avoided, the complexity of mounting the lift car andthe counterweight guide rail on site is reduced, and the operation stability of the lift car is improved.

A steering column assembly for a vehicle, comprises a shroud comprising an axially movable upper portion and an axially fixed lower portion, which move telescopically to provide adjustment for reach of the steering column assembly, a steering shaft supported by the shroud, a pivot which connects a part of the lower portion to a fixed part of the vehicle, a clamp mechanism which releasably fixes the upper and lower portions and the shroud in position relative to a further fixed part of the vehicle. A sprung support assembly is secured to a fixed part of the vehicle and includes an axle that passes underneath the upper portion of the shroud and a cylindrical roller that surrounds a part of the axle and has an outer surface that engages the underside of the shroud and an inner surface that bears on the axle, the sprung support at least partially supports the weight of the shroud when the clamp mechanism is released, and the cylindrical roller rotating around the axle as the shroud is adjusted for reach.

The invention discloses an intelligent numerical control machine tool clamping mechanism which comprises a liquid pool, a multi-axis posture adjusting arm, a multi-angle laser posture position measuring device and a controller. The liquid pool is filled with electrorheological fluid, and electrodes are oppositely arranged on the inner walls of the two sides of the liquid pool; an external circuit applies a strong electric field to the electrorheological fluid through the electrodes; the multi-axis posture adjusting arm grabs and fixes a workpiece from the bottom of the workpiece to be machined and adjusts the posture of the workpiece. According to the clamping mechanism, liquid-solid conversion is achieved through the characteristics of electrorheological fluid, so that the clamping mechanism is suitable for clamping different special-shaped workpieces, full-wrapping clamping is adopted, the clamping force is stable, and the special-shaped workpieces are not prone to being damaged; according to the clamping mechanism, the multi-axis posture adjusting arm is combined with the multiple sets of laser position detectors, the posture of the special-shaped workpiece is flexibly and accurately adjusted, posture adjustment and clamping can be rapidly and automatically achieved in combination with the characteristics of electrorheological fluid, and therefore the machining efficiency of the workpiece is improved.

The invention relates to a gas injector for injecting gas, in particular directly into a combustion chamber of an internal combustion engine. The gas injector comprises: an electromagnetic actuator (2) having an armature (20), an inner pole (21) and a coil (22); at least two outwardly open valve needles (31, 32, 33), each of which releases and closes a flow opening of the gas path on the valve seat (90); a reset device (10), which is provided for resetting the valve needle (31, 32, 33) into its initial position.