CONCRETE MIXER Russian patent published in 2017 - IPC B28C5/00 

FIELD: building.

SUBSTANCE: invention is intended for expansion of technological capabilities of the concrete mixer, comprising a housing in the form of elements interconnected with each other to form a polyhedral outer and inner surfaces, the body is made of three rectangular strips, alternately bent in opposite directions at the angle of 140° along notches, made at the angle of 60° to each other and to the longitudinal edges of the strips to form along the strips equilateral triangles alternately arranged in opposite directions, and rectangular strips are connected to one another along the longitudinal edges at the angle of 70° with the formation along the internal perimeter of the body three screw broken surfaces and three screw broken grooves of the mainstream for concrete or mortar components and mixing water tempering and their move in the direction from loading to unloading and also two screw broken surfaces of two screw grooves of opposite directions for concrete or mortar components and mixing water moving in the direction from the discharge to the load while on the outside perimeter of the housing three screw broken lines of the mainstream with an S pitch and two screw broken lines in the opposite direction with a pitch 0.25 S, at the cusp of which the convergence of the six sides of the said equilateral triangles is located, wherein the coil spring with flat section and the device for changing the pitch of turns by stretching or compressing it is mounted along the entire length of the housing with the possibility to move concrete or mortar components and mixing water tempering in the direction from the discharge to loading.

EFFECT: invention relates to the device for concrete mixtures preparation.

15 dwg