4results about How to "Enough safe distance" patented technology

An online slip ring grinding device and its method of use include a brush holder with a detachable grinding body adjustment device. The grinding body adjustment device includes a sliding sleeve insert connected to a support tube arm, which in turn connects to a brush box. The brush box contains a grinding body and a first spring, with the grinding body cooperating with the first spring. A brake rod is located within the support tube arm, its middle section connected to the support tube arm via a second fixing pin. One end of the brake rod has a grinding body braking protrusion for braking the grinding body, and the other end has a trigger protrusion that cooperates with a cam. The cam is mounted on an operating rod, with a handle at the end of the operating rod. A second spring is located on the brake rod for resetting the brake rod. This invention enables grinding of slip rings without shutting down the equipment, ensuring a sufficient safe distance between the operator and the slip ring device, thus enhancing operator safety.

The application relates to the technical field of lead frames, and discloses a pre-electroplated lead frame and a preparation method thereof, which comprises an integrated card frame, a plurality of lead frame bodies are fixedly connected in the integrated card frame, a plurality of bending support pieces are arranged, a circular buckling piece is arranged on the integrated card frame and corresponds to the bending support pieces, the bending support pieces are connected with the circular buckling pieces, the bending support pieces rotate along the center points of the circular buckling pieces, the top end and the bottom end of the bending support pieces are support end faces, the lead frame bodies are supported by the bending support pieces when the surfaces of the lead frame bodies are treated, the integrated card frame is taken, a plurality of integrated card frames can be stacked by the bending support pieces, and the two bending support pieces corresponding in the vertical direction can abut against each other, and the technical scheme can solve the problem that the lead frame before resistance operation is inconvenient to take and place when the surface of the lead frame is treated.

The utility model provides a kind of test paper bag, including bag body, it contains positive paper face and back paper face;Sealing inner tongue is connected to the upper end of back paper face, and inner tongue crease line is formed;Sealing outer tongue is connected to the upper end of positive paper face, and outer tongue crease line is formed.Inner tongue crease line is located below outer tongue crease line, both are parallel and arranged in upper and lower interval, form safety buffer interval.The vertical width of sealing inner tongue is greater than the interval, ensure secondary sealing coverage.Sealing outer tongue is equipped with folding angle close to outer tongue crease line, for guiding tool accurate cutting outer tongue crease line.The utility model improves opening security, secondary sealing reliability and operation convenience.

The utility model provides a floating type normal-pressure hydrogen storage photovoltaic power generation system, and the system comprises a normal-pressure hydrogen bag which is disposed on an idle water surface below or beside a photovoltaic cell panel. The hydrogen production machine is communicated with the normal-pressure hydrogen bag and the hydrogen fuel power generation device through a hydrogen pipeline, and photovoltaic electric energy is gathered and concentrated through a photovoltaic wire, so that the electric energy is converted into hydrogen for normal-pressure storage. According to the invention, the continuity and stability of power supply can be ensured, and a new low-cost technical path can be provided for replacing thermal power by photovoltaic power generation.