36results about How to "Size can be large or small" patented technology

The invention discloses a display platform for campus education. The display platform comprises a protective cover and a fixed base, wherein the protective cover comprises a protective warning tape and a plurality of arc-shaped plates with the same structure; the protective warning tape sequentially penetrates through the center of each arc-shaped plate and forms a cylindrical structure together with all the arc-shaped plates; walking wheels are fixed at the bottom ends of the arc-shaped plates; the fixed base is placed on the inner bottom end surface of the protective cover; the fixed base iscomposed of a fixed base I and a fixed base II; fixed grooves are annularly formed in the side wall of the fixed base II in the radial direction of the fixed base II at equal intervals; telescopic mechanisms are arranged in the fixed grooves; the telescopic mechanisms are in one-to-one correspondence with the arc-shaped plates; adjusting rods are annularly hinged to the upper end surface of the fixed base II at equal intervals; fixed blocks are fixed at the same heights of the inner walls of the upper ends of the arc-shaped plates; and the other ends of the adjusting rods are hinged to the corresponding fixed blocks. The display platform can be automatically folded or unfolded; and the unfolded display platform can automatically form a protective wall, so that the effect of protecting thedisplay platform is achieved.

The invention discloses an intelligent flexible production line for sheet metal processing and a method for using the same. It includes a conveying track on which two or more of the following modules are arranged: a shearing module, a laser cutting module, Slotting module, punching module, and hemming module; the above-mentioned modules can be added or subtracted according to different processes, and can be arranged in different relative positions according to different processes; the above-mentioned modules are all equipped with useful A feeding module for pulling plates; several pulling modules are arranged on the conveying track for pulling the plates and positioning the plates on the designated area of ​​the conveying track; also includes an identification module and a control assembly; through the control The assembly is used to control the time nodes and distances at which the pulling module and the feeding module clamp the plate and move.

The invention discloses a display platform for campus education. The display platform comprises a protective cover and a fixed base, wherein the protective cover comprises a protective warning tape and a plurality of arc-shaped plates with the same structure; the protective warning tape sequentially penetrates through the center of each arc-shaped plate and forms a cylindrical structure together with all the arc-shaped plates; walking wheels are fixed at the bottom ends of the arc-shaped plates; the fixed base is placed on the inner bottom end surface of the protective cover; the fixed base iscomposed of a fixed base I and a fixed base II; fixed grooves are annularly formed in the side wall of the fixed base II in the radial direction of the fixed base II at equal intervals; telescopic mechanisms are arranged in the fixed grooves; the telescopic mechanisms are in one-to-one correspondence with the arc-shaped plates; adjusting rods are annularly hinged to the upper end surface of the fixed base II at equal intervals; fixed blocks are fixed at the same heights of the inner walls of the upper ends of the arc-shaped plates; and the other ends of the adjusting rods are hinged to the corresponding fixed blocks. The display platform can be automatically folded or unfolded; and the unfolded display platform can automatically form a protective wall, so that the effect of protecting thedisplay platform is achieved.

The present invention relates to a combined character-piecing board. It is formed from base board and character points. On the plane of said base board there are several crisscrossed projected lines and / or recessed lines which can divide the plane into several checks, every check is made into the form of square, in every check there is a projected pin and / or inserting hole which can be detachably connected with character point. It has several character points, every character point is a block material with regular shape, and its material colour is different from that of base board. The character point has inserting hole and / or projected pin which are correspondent to the pin and / or hole in the check of base board. Said invention also provides its application method and range.