16results about How to "Avoid support" patented technology

The utility model discloses a strip storage tray based on a shifting fork mechanism. The strip storage tray comprises a base provided with a storage channel and a plurality of sets of shifting fork tools arranged on the two sides of the storage channel respectively. Each group of shifting fork tools comprises a plurality of shifting fork pieces which are distributed at equal intervals in the vertical direction; each shifting fork piece can rotate in the direction close to or away from the storage channel. The lowermost shifting fork piece in each set of shifting fork tools is located in the storage channel. Wherein the shifting fork pieces located in the storage channel are used for supporting strip materials, and each shifting fork piece located in the storage channel is in contact with the strip materials, then rotates and drives the adjacent shifting fork pieces above to enter the storage channel. The technical problem that materials are easily scratched when the storage tray is pulled, taken and placed is solved, and the technical effect that the materials are prevented from being scratched during storage and taking is achieved.

The utility model relates to the technical field of air valves, in particular to a double-shaft type air valve which comprises a shell, the shell is hollow, a mounting seat is fixedly arranged on the inner side of the shell, a first rotating shaft and a second rotating shaft are rotatably arranged on the mounting seat, the second rotating shaft and the first rotating shaft are arranged in parallel, and the first rotating shaft is fixedly connected with a first valve plate; the second rotating shaft is fixedly connected with a second valve plate, the first valve plate and the second valve plate are both located on the inner side of the shell, and the second valve plate and the first valve plate are arranged side by side; by arranging the first rotating shaft and the second rotating shaft, the first rotating shaft and the second rotating shaft are fixedly connected with the first valve plate and the second valve plate correspondingly, the connection stability and reliability are enhanced, the problems of poor stability and insufficient supporting force caused by traditional single-shaft connection of double valve plates are solved, and the risk of shaft breakage under high wind pressure is reduced.

The utility model discloses a 3D printer adjustable platform relates to adjustable platform technical field. The 3D printer adjustable platform, including the bottom plate, is fixedly connected with the positioning pin on the bottom plate, is fixedly connected with the support seat on the bottom plate, is rotatably connected with the lead screw on the support seat, is threadedly connected with the nut on the lead screw, is provided with the platform on the nut, is equipped with the positioning hole on the platform, is equipped with the sliding slot on the platform, is slidably connected with the sliding plate on the sliding slot, is fixedly installed with second motor on the platform, is fixedly connected with the push rod of second motor output, and first motor, lead screw and nut realize automatic lifting, and the adjustment precision is high, and need not manual intervention, and the positioning hole is limited horizontal deviation with the cooperation of the positioning pin, further guarantees the perpendicularity, improves the adjustment efficiency, and the sliding plate can be accurately adjusted through second motor, and is suitable for small size, special-shaped, super-wide model, avoids the platform idle or the support deficiency, and improves the platform utilization.