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1002results about How to "Reduced parts count" patented technology

Angular bevel gear mechanism

The invention provides an angular bevel gear mechanism. In the angular bevel gear mechanism, a driving wheel and a driven wheel form a driving pair; axial lines of the driving wheel and the driven wheel are crossed at any angle; the driving wheel is connected with an input shaft; the driven wheel is connected with a rotating shaft of a driven device; the driving is realized under the action of continuous mesh between driving hook levers and driven hook levers; any angle is not equal to 90 degrees; the driving wheel is provided with a plurality of driving hook levers; the driven wheel is provided with a plurality of driven hook levers; the driving hook levers are uniformly distributed on the end surface of a cylinder of the driving wheel; the driven hook levers are uniformly distributed on the circumference of a cylindrical surface of the driven wheel; the driving wheel and the driven wheel form a pair of driving pair; and the driving wheel is driven by a motor to cause the driving hook lever to be meshed with the driven hook levers, so that the driving among any crossed shafts in space can be realized. The invention can greatly simplify the structure of a micro mechanical driving device, reduce the geometric dimensioning and the quality, improve the flexibility for operation, has low construction cost, and is convenient to be applied to the filed of micro electromechanical systems.
Owner:SOUTH CHINA UNIV OF TECH

Structure and manufacturing process of low-cost carbon fiber composite material sky railway train body

The invention discloses a structure and a manufacturing process of a low-cost carbon fiber composite material sky railway train body, and belongs to the technical field of application of composite materials on rail vehicles. The structure comprises a train body side wall, wherein end walls are assembled and connected to the both ends of the train body side wall; a top frame and a bottom frame arecorrespondingly assembled and connected to the inner top surface and the inner bottom surface of the train body side wall, a ceiling is assembled and connected to the outer top surface of the train body side wall, and a bogie mounting hole is formed in the ceiling; the train body side wall and the end walls both comprise reinforced rib frames, inner skins and outer skins, and grids of the reinforcing rib frames are filled with sandwich foam blocks; the ceiling comprises a sandwich panel, an upper skin and a lower skin, and the top frame, the bottom frame, the reinforcing rib frame, the inner skins, the outer skins, the upper skin and the lower skin are all integrally molded from carbon fiber composite materials; and the inner portions of the reinforcing rib frames are filled with sandwichfoam, and the purpose of satisfying the function and structure of the load bearing mode of a suspension-type train body on the premise of light weight of the train body is achieved.
Owner:SOUTHWEST JIAOTONG UNIV

Auto-injector

The invention refers to an auto-injector (1) for administering a dose of a liquid medicament (M), comprising a tubular chassis (2) telescopable in a tubular case (12); a carrier subassembly comprising a tubular carrier (7) slidably arranged relative to the chassis (2) inside the case (12), the carrier (7) adapted to contain a syringe (3) with a hollow injection needle (4), a drive spring (8) and a plunger (9) for forwarding load of the drive spring (8) to a stopper (6) of the syringe (3), wherein the syringe (3) is lockable for joint axial translation with the carrier (7); a control spring (19) arranged around the carrier (7) for translating the carrier (7) in a proximal direction (P) for insertion of the needle (4) through the chassis (2) into an injection site, wherein the control spring (19) is arranged to bias the case (12) against the chassis (2) in a distal direction (D), so as to extend the chassis (2) out of a proximal end (P) of the case (12), wherein an insertion depth of the needle (4) is defined by the carrier (7) abutting the chassis (2) in a predefined position, wherein the case (12) is arranged to release or allow release of the control spring (19) for needle insertion on translation of the case (12) in the proximal direction (P) relative to the chassis (2) against the bias into an advanced position.
Owner:SANOFI AVENTIS DEUT GMBH
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