3results about How to "Avoid overturning" patented technology

This utility model belongs to the field of butterfly valves, specifically a triple-eccentric metal hard-to-hard seal butterfly valve, including a valve body, a valve seat fixed to the inner wall of the valve body; a valve cover provided on the valve seat; a valve stem that is rotatably connected through the valve body; a valve plate connected to the surface of the valve stem inside the valve body via a flat key; a flat keyway provided on the surface of the valve stem outside the valve body; by setting the sealing surface of the valve plate as an inclined disc structure, the friction between the valve plate and the valve seat can be reduced to the greatest extent, thereby achieving metal-to-metal sealing of the device, reducing friction between metals, and reducing the torque required for valve stem rotation. It can also be used to transport media such as liquids, gases, steam, pulp, powders, and particles. Finally, through the cooperation of the abutment plate and the baffle, the rotation angle of the valve plate can be forcibly limited to prevent over-rotation.

This utility model relates to the field of card printing technology, specifically disclosing a printing drying device for paper card production. The device includes a drying box with a hollow structure, and further comprises drying fans, electric heating plates, drying rack assemblies, and a drive assembly. At least three drying fans are arranged evenly at intervals on the top of the drying box. At least three pairs of electric heating plates are provided, with each pair corresponding to both sides of a drying fan. Multiple drying rack assemblies are provided, each including a drying frame, a handle installed at the front end of the drying frame, and a support component installed within the drying frame. In this utility model, the upper and lower drying nets in the support component are arranged in layers. The upper drying net restricts the movement of the cards, minimizing the risk of card flipping and thus ensuring effective card drying.

The utility model relates to building construction technical field, concretely is a kind of building construction lifting device, including base, self-locking universal wheel, support frame and adjusting device, self-locking universal wheel is fixedly connected with the bottom surface of base, support frame is fixedly connected with the top surface of base, adjusting device is set on the surface of base, adjusting device includes double-shaft motor, double-shaft motor is fixedly installed on the surface of base, the output end of double-shaft motor is fixedly connected with winding wheel, the surface of winding wheel is provided with steel cable, the surface of support frame is fixedly connected with pulley, steel cable and the surface of pulley are slidably connected, one end of steel cable is fixedly connected with lifting plate by passing pulley, the surface of lifting plate is provided with T slot, T slot is slidably connected with T block on the surface.The utility model, by setting adjusting device, different sizes and shapes of material can be stably clamped, avoid lifting process material shake even fall and lead to safety accident, effectively improve the applicability of equipment for this.