Types and characteristics of standard parts: standard parts are threaded standard parts, keys, pins and bearings, etc. Common parts include gears, springs, etc. Common standard structures include chamfering, rounding, and keyway. Their structural characteristics are different, but their common feature is that their structural dimensions have been standardized, that is, the codes of the same type of standard parts and their parameters are the same, but the values ​​of the parameters are different. Therefore, you can write program code, give different specifications and size, you can get serialized 2D, 3D part graphics. Analysis of the characteristics of various standard parts: any complex figure is composed of four basic elements: point, line, circle and arc. The basic element can be represented by various parameters, according to the control parameters (variables) and these basic figures. Yuan relationship programming. The model features refer to the topological relationship of the graph, the geometric parameters, and the relationship between these geometric parameters and the graphical structure parameters.
Method characteristics of model establishment:
(1) The sketching features of the part modeling, first draw a two-dimensional sketch, and then form a three-dimensional model by stretching, rotating and scanning.
(2) Placement features of part modeling, refer to the fillet feature, punch feature, chamfer feature, shell feature and draft slope feature in the part.
(3) The reference feature of the part, which refers to the reference plane, reference axis, datum curve, datum point and coordinate system of the part.
The generation of three-dimensional parametric solid graphics, in addition to the basic stereo directly using AutoCAD's basic entity command generation, generally generates a planar shape for the complex shape, and then uses the stretching, rotation method and intersection and difference operation to form the desired shape. For example, in the system, the generation of the thread structure is performed by a method in which the tooth plane is wound by a spiral, and then a difference operation is performed with the cylinder or the cylinder hole. For the generation of 2D views, the 3D parametric solid model is generated by directly calling the functions of AutoCAD.
The utility model discloses a Kitchen Shower head that is convenient to switch the water outlet mode, has a compact structure, and is easy to use and a kitchen faucet using the kitchen shower head. The shower head includes a shower body and a shower head provided with a spray water outlet and a V-shaped water outlet. , The shower head is provided with a water separator, and the water separator is provided with an annular flow channel and an inner flow channel respectively connected to the spray water outlet body and the V-shaped water outlet body, and the lower end of the outer wall of the water separator is upwardly circular A plurality of water inlet holes connected to the annular flow channel are provided, and a first sealing ring is provided on the lower side of the water inlet hole; the water outlet end of the shower body is connected with a converter, and the converter is provided with a communicating In the water diversion cavity at the water outlet end of the shower body, the lower end of the water diversion device is installed in the water diversion cavity and can move up and down, and the upper end of the inner wall of the water diversion cavity is provided with a matching first sealing ring
Kitchen Pull Shower,Kitchen Pull Shower Head,Stainless Steel Shower Head,Rotating Wash Basin Shower
Yuyao Zelin Sanitary Ware Co., Ltd , https://www.zelinshower.com