479results about How to "Reliable strength" patented technology

A water pump for cooling an engine in which an impeller accommodated in a pump housing provided on an engine body is mounted on an end of a rotational shaft rotatably supported on the pump housing for enhancing the reliability of the mounting strength of the impeller while avoiding an increase in cost. A fitting recess for fitting an end of the rotational shaft having an outer circumferential surface which is straight in an axial direction at least in a portion on the impeller side is provided in a central portion of the impeller. A bolt inserted into the central portion of the impeller is threaded in a coaxial direction with the end of the rotational shaft in a state that is fitted in the fitting recess.

A medical multi-chamber container (1) comprising a container body (3) having first and second chambers (10, 11) for storing medicaments, a weak partition seal (20) for portioning the charmers (10, 11) from each other, and an outlet (32) fitted into the container body (3) for allowing the medicaments to be delivered from the second chamber (11), the container body (3) further comprising a weak discharge seal (21) partitioning the second chamber (11) from the outlet (32) and unsealably formed so as to allow the chambers (10, 11) to communicate with each other when used, characterized in that the unsealing strength of the weak discharge seal (21) is less than that of the weak partition seal (20).

A flange assembly, a coupling flange, and its assembling method thereof are disclosed. Stiffening plates (2) are located on the front side of the flange plate (1). Equilibrium contact surfaces (211) are set up on the front end surfaces of stiffening plates. The pressure stress bending moment created by the equilibrium contact surfaces offsets the pulling stress on the steel pipe wall and reduces the hoop stress of the steel pipe. This provides reliable bonding strength and ensures that the tensile rigidity remains unchanged under circulating dynamic load. This coupling flange is especially suitable for the connection of large-scale steel pipes such as the cylindrical pylons of large-scale wind power generators. The coupling flange can save steel consumption, reduce machining difficulty, and thus greatly reduce the manufacturing and assembling costs.

The invention provides a door body with a power-assisted handle, comprising a main body, an end cover, a support, the power-assisted handle and a link mechanism, wherein, the power-assisted handle is arranged on the main body and close to the end cover, the power-assisted handle is coupled on the support through a power-assisted handle shaft and can rotate around the power-assisted handle shaft; the link mechanism penetrates through the thickness direction of the door body, and the link mechanism is connected with a link articulated block on the power-assisted handle to prop against the side of a refrigerator body while the power-assisted handle is pulled; and the link mechanism further comprises a connection part and a link part which are connected together, the connection part is connected with the link articulated block, and the length of the link part can be adjusted. The power-assisted handle and corresponding mechanisms provided by the embodiment of the invention can be completely preinstalled before foaming of the door body without drilling holes on the door body and damaging a door shell and a foaming layer structure, thus achieving simple assembly technology, easy operation, reliable strength, and firmness and durability.

The invention concerns an outer hexagon round screw and a method for production of the screw. The screw cap is formed here essentially in the kind of a Torx head, with an outer hexagon round contour (5) and a flange (4) having a slope (4.1) reaching in the direction of the outer hexagon round contour (5) under an angle (alpha) thereby assuring a force engagement with a tool. The slope (4.1) of the flange (4) follows immediately to the outer hexagon round contour (5) such that the overall height (k) of the head (3) is substantially decreased, wherein at the same time the height (t1) of the outer hexagon round contour (5) assures a reliable force engagement. The production of the flange (4) and of the outer hexagon round contour (5) is performed either by scraping with a scraping tool or by head flattening or upset compressing or compression molding, wherein additionally a socket is formed in the head region. (FIG. 1).

A heat-transporting device includes a working fluid, a vessel, a vapor-phase flow path, and a liquid-phase flow path. The working fluid transports heat using a phase change. The vessel seals in the working fluid. The vapor-phase flow path includes a first mesh member and causes the working fluid in a vapor phase to circulate inside the vessel, the first mesh member including a through-hole larger than a mesh thereof. The liquid-phase flow path causes the working fluid in a liquid phase to circulate inside the vessel.

The invention relates to an automobile seat chair slide rail with an improved structure, and belongs to the technical field of automobile fittings. The automobile seat chair slide rail comprises a lower guide rail, an upper guide rail and a locking device, wherein the upper guide rail is in sliding fit with the lower guide rail by ball brackets, the upper guide rail is provided with lock claw grooves which are respectively in an inclined cut shape, a reinforcing bracket is additionally arranged under an upper mounting surface, the upper guide rail and the lower guide rail are respectively provided with a circular arc-shaped raceway accommodating cavity, large steel balls and small steel balls of the ball brackets roll on the circular arc-shaped raceway accommodating cavities, the insides of one pair of folding edges of the lower guide rail are provided with lock row teeth, the locking device comprises a lock block, a wrench, a connecting pin, a pull spring, a fixed block, a rotary shaft, a press spring, a wrench spring and a connecting pipe, the lock block is provided with lock claws which are matched with the lock claw grooves and the locked row teeth, the lock block is fixedly arranged on the wrench, and the wrench is arranged between the upper guide rail and the lower guide rail. The automobile seat chair slide rail has the advantages that the locking strength is high, the synchronism is high, the self-locking is avoided, the clearance is small, the sliding uniformity is high, the shaking clearance of the wrench is small, and the abnormal noise in sliding is avoided; and meanwhile, the processing and the manufacturing are convenient, the production cost is low, and the application range is wide.

A building system and method. A construction method and system is disclosed. The system includes panel members composed of foamed cement containing perlite as the only material aggregate. Each lightweight cement body is encased around its perimeter edges by a rigid frame preferably fabricated from steel C-channel or beams. Once cured, a plurality of such panels vertically disposed, arranged upon building footings, and inter-connected to serve as structure walls. The use of a special foamed cementitious mix containing expanded perlite provides lightweight panels of reliable strength and durability yet excellent thermal and sound insulation. The frames of abutting panels may be joined by welding. Reinforced concrete footings according to this disclosure are provided with a special channel running longitudinally there-along. An exposed anchor bar runs along the inside of the longitudinal channel. The wall panels have reinforcing conduits extending top to bottom in the panel frame. Tie rods situated in the conduit interiors extend beyond the conduit ends. The upper end of each tie rod is adjustably engaged with the end of the corresponding conduit, while the tie rod lower end is connected to the anchor rod on the footing. With the tie rod attached to the footing's anchor rod, the controlled tightening of the engagement of the tie rod and conduit upper ends pulls the tie rod into tension to secure the panel to the footing.

A reliable and superior joining strength in entire joining parts of resin molded bodies including tilting portions is obtained by devising a shape and a size of each protrusion for welding provided in the joining parts of the resin molded bodies. In a structure of joining resin molded bodies according to the present invention, upper and lower half bodies 10 and 20 are joined with each other by means of a vibration welding method while the upper and lower half bodies 10 and 20 are being pressurized in a state in which joining parts thereof are butted into each other in a substantially entire area of the joining parts. The joining parts of the respective half bodies have vertical portions 11 and 13 and vertical portions 21 and 23 respectively vertical to a pressurizing direction and tilting portions 12 and 22 tilting relative to the pressurizing direction, and protrusions for welding 11E to 13E or 21E to 23E are provided in at least the joining part of one of the half bodies. Further, referring to a butting area of the protrusions in a butted state, the butting area in the vertical portions is set to be narrower than the butting area in the tilting portions.

In an electric power steering apparatus, in which an auxiliary steering torque is generated by an electric motor according a steering torque impressed upon a steering wheel transmitted to a rack shaft of a steering mechanism via a power transmission mechanism. The power transmission mechanism has a small diameter external gear, and an outer circumferential face thereof acts as a drive side pulley, a driven side pulley driven by the internal-external gear and a ball screw mechanism driven by the driven side pulley so as to move the rack shaft. A circular support body is concentrically provided at the external gear and an annular support body, which supports the circular support body, is concentrically provided at the internal-external gear so as to be inscribed with the circular support body.

An invert mechanism for moving parisons between a pre-forming station and a finishing forming station of a glass forming machine is disclosed. The mechanism is disposed above a cover plate of a frame of the glass forming machine. An electric motor is disposed with its horizontal longitudinal axis above the cover plate. A driven shaft of the electric motor is connected to a horizontal invert shaft by means of a transmission. Between the driven shaft of the electric motor and the transmission a planetary gear is connected.

The invention relates to an assembled reinforced-concrete framework beam-column joint adopting transverse bolt connection. The joint comprises a hidden corbel arranged on a beam of a precast column, wherein hidden corbel bolt holes are transversely reserved in the hidden corbel; a notched groove matched with the hidden corbel is formed in the front/rear side face of an end-part connection part of a precast beam and is formed in a manner that the precast beam is notched towards one side of the precast beam from the vertical axis of the precast beam, the notched groove and the hidden corbel are the same in cross-section shape, and precast beam bolt holes are transversely reserved in corresponding positions of the bottom of the notched groove; and the transverse width of the hidden corbel is half that of the precast beam, the hidden corbel is embedded in the notched groove of the precast beam along the transverse direction, bolt cushion plates are arranged at the front and rear sides of an assembly which is formed after the hidden corbel is embedded in the notched groove of the precast beam, and bolts transversely penetrate through the bolt cushion plates, the hidden corbel bolt holes and the precast beam bolt holes so as to carry out fixing. A corresponding construction method comprises the steps of precasting, mounting and filling mortar in gaps. The joint and the corresponding construction method have the advantages that the internal force transmission between the precast beam and the precast column is clear, the joint is reliable in connection, the construction operation is simple, and the construction progress is accelerated.

An improved utensil such as a knife is produced by forming integrally with the blade or other working part a tang which ultimately constitutes a substantial portion of the knife-handle including the outer hand-engaged surface of the handle, and providing the tang with an attached cover which constitutes the remainder of the utensil handle.

A rotor of a rotating electric machine includes a field core having a cylindrical boss portion, and a plurality of claw-shaped magnetic pole portions that are arranged on the outer side of the boss portion and form poles of alternately different polarities in the circumferential direction, a field winding that is wound around the outer periphery of the boss portion and generates a magnetomotive force by energization, a permanent magnet disposed between the circumferentially adjacent claw-shaped magnetic pole portions so as to have its easy axis of magnetization oriented in the circumferential direction and have its polarity coincide with the polarity of the claw-shaped magnetic pole portions which alternately appears by excitation, and a magnetic flux short circuit member having a short circuit portion that magnetically connects the claw-shaped magnetic pole portions circumferentially arranged to have different polarities.

The invention discloses a frame laminate material and application thereof in preparing a membrane electrode with a sealed frame core component. The frame laminate material has a structure of laminating a support membrane, a first adhesion layer, a frame membrane, a second adhesion layer and a protection membrane in turn. During preparing the membrane electrode with the sealed frame core component, the frame laminate is punched according to a certain rule before the preparation of an anode sealed frame and a cathode sealed frame is finished; and in the preparation process, the thickness and intensity of the frame laminate layer are enhanced in the presence of the support membrane. Therefore, the frame laminate has better processing feasibility and dimension stability; the prepared sealed frame has higher contraposition precision; and the preparation process is more easy to control. After the preparation of the sealed frame is finished, the support membrane is stripped. A catalyst layer is coated on an active region of a polymer ion exchange membrane before or after the preparation of the sealed frame so as to prepare the core component with the sealed frame; and then the core component with the sealed frame is compounded with an anode gas diffusion layer and a cathode gas diffusion layer to prepare the membrane electrode respectively.

In some embodiments, the present invention provides an independently tightening collet surrounding each socket for each of a plurality of corresponding high-electrical-power prongs, wherein the collet is loosened for normal (low-insertion-force) insertion and withdrawal of the plug from the outlet. Once the plug is inserted, the collet is tightened, providing a high-contact force to lower the contact resistance and to help keep the plug from coming unplugged. In some embodiments, the plug is not “locked”, in that a tension force pulling on the plug will overcome the contact force at a point before the plug or outlet is damaged, and the plug is allowed to come unplugged. In some embodiments, engaging the collet will also provide a wiping or sliding motion between the prong and socket for each connection, thus wiping at least some dirt or corrosion away and providing a lower-resistance better electrical contact.