43results about How to "Reasonable structure size" patented technology

The invention relates to a fastener type steel pipe scaffold formwork support, which has 5 spans in the vertical direction and 5 spans in the horizontal direction, and is loaded within the range of 5 spans×5 spans; there is no extra span outside the loading area; the height-to-width ratio of the support is 2.71. The height of the erection is 8.15m, the step distance of the pole is 0.9m, the vertical distance between the poles is 0.65m, and the horizontal distance between the poles is 0.6m. The upper part of the bracket is supported by an adjustable bracket Φ48×3.5 double steel pipe as the main beam of the supporting template, the bottom of the adjustable bracket is inserted into the vertical pole of the bracket and fixed, and the upper surface of the adjustable bracket is connected to the upper surface of the longitudinal horizontal rod (3) of the bracket. The distance is 0.55m, the adjustable bracket protrudes 0.32m from the pole, and can be adjusted within the range of 0.32m. The fastener-type steel pipe scaffold formwork bracket of the present invention has a safe and stable structure and is convenient to assemble and disassemble.

The invention discloses a prestress steel strand coil fixing paying-off device. The prestress steel strand coil fixing paying-off device comprises a main frame, a longitudinal connecting rod set, a third vertical supporting rod set and an auxiliary support. The main frame is composed of an upper transversal connecting rod set, a lower transversal connecting rod set, a first vertical supporting rod set, a second vertical supporting rod set, a first connecting rod set and a second connecting rod set. The auxiliary support is formed by connecting the longitudinal connecting rod set, the third vertical supporting rod set and a first transversal connecting rod which is perpendicular to the longitudinal connecting rod set and the third vertical supporting rod set, and the longitudinal connecting rod set, the third vertical supporting rod set and the first transversal connecting rod are located in the same plane. The first transversal connecting rod is provided with a strand clamping and limiting device, and a second transversal connecting rod is provided with a length measuring instrument. Vertical supporting rods of the whole support system are connected with universal wheels. The invention further discloses a manufacturing method of the prestress steel strand coil fixing paying-off device. The prestress steel strand coil fixing paying-off device can guarantee safe and reliable paying-off and has the advantages that the prestress steel strand coil fixing paying-off device can measure the length of the paid-off strand, can be moved and repeatedly used, and has the strand clamping function.

The invention discloses an elliptical internal gear hob for processing large internal gears, which is characterized in that: the tooth shape of the toothed blade (4) is distributed in the direction of the normal line of the circumference, and is a part of an imaginary gear. The center of the pitch circle of the imaginary gear is not on the axis line of the ellipsoidal internal gear hob, and the ellipsoidal internal gear hob is in the shape of an ellipsoid, and the cutting edges of all toothed blades (4) on the circumference of the ellipsoidal internal gear hob are on the An ellipsoid helicoid. With this scheme, the ellipsoidal internal gear hob not only retains the advantages of high machining accuracy, long service life, and good versatility, but also solves the problem that the larger the modulus of the spherical hob, the larger the diameter of the hob, so that it is difficult to manufacture and use. All bring difficulty even can't make or use the problem.

The invention relates to a fastener type formwork bracket for a steel pipe scaffold. The bracket is 10 spans in the longitudinal direction and 6 spans in the transverse direction, and is loaded in the range of 5 spans x 5 spans; the loaded region is 2 spans outside one side in the longitudinal direction, while 3 spans outside the other side; the loaded region is 1 span outside one side in the transverse direction, while the other side is not spanned; and the ratio of the height to the width of the bracket is 1.44. The height of the bracket is 8.15 meters, the step pitch of upright rods is 1.49 meters, the longitudinal pitch of the upright rods is 0.9 meter, the transverse pitch of the upright rods is 0.94 meter, the bracket is built by using phi 48 x 3.5 steel pipes, and joints of the steel pipes are connected by fastening pieces. The upper part of the bracket is provided with phi 48 x 3.5 dual steel pipes which are supported by an adjustable supporting base and are used as main girders for supporting the formwork, the upright rods of the bracket are inserted into the bottom of the adjustable supporting base to fix the adjustable supporting base, the upper surface of the adjustable supporting base is adjusted to 0.5 meter on the upper layer of a topmost transverse pipe of the bracket, and the upright rods extend 0.3 meter out from the adjustable supporting base and are adjusted within the range of 0.3 meter. The fastener type formwork bracket for the steel pipe scaffold has a safe and steady structure and is convenient to build and dismantle.

The invention provides a water electrolysis device in low current for producing hydrogen used as an auxiliary fuel of an engine. The water electrolysis device comprises a set of positive and negative electrode plates arranged in a water electrolyser. The electrode plates with the same polarity are connected by an electrical conductor. The electrode plates with the opposite polarity are separated by an insulator. The positive and negative electrode plates are alternately arranged and connected by positive and negative electrode bars in a penetrating way. The positive and negative electrode bars are connected with electrolysis electric supply. One of the positive and negative electrode plates is the mesh structure and the other electrode plate is plate shaped. The electrical conductor is stainless steel. The insulator is high temperature resistance nylon materials. The water electrolysis device has the beneficial effects that by the unique structure and size design, the electrolysis device can generate hydrogen with 3-15 ampere of electrifying electric current in 1.5 seconds, has low energy consumption, high energy conversion efficiency, simple structure, reasonable design, and low production cost.