3results about How to "Drive effort" patented technology

The utility model belongs to wheelchair technical field discloses a kind of wheelchair manual power drive device and wheelchair, wheelchair manual power drive device includes cross bar, clamping joint, directional swing piece and grip bar, cross bar opposite both ends are equipped with clamping joint, the position of clamping joint along the length direction of cross bar is adjustable, directional swing piece is located in the middle of cross bar, directional swing piece is configured as driving cross bar directional swing around first direction or second direction, grip bar is located in the end of directional swing piece away from cross bar;Wheelchair includes above-mentioned wheelchair manual power drive device, still includes body, wheel and limiting piece, wheel rotation is arranged in body, hand wheel ring is equipped on wheel, the clamping joint of cross bar opposite both ends is all clamped on hand wheel ring, limiting piece is arranged on body, for the swing range of limiting grip bar.This wheelchair manual power drive device, can be conveniently driven wheelchair forward and backward by user, simple structure, convenient operation is laborsaving.

The utility model discloses a magnesium alloy electromagnetic induction heating melting furnace which comprises a supporting base fixed to the ground through bolts, left and right symmetrical installation frames are fixedly installed on the upper surface of the supporting base, a melting furnace shell is rotatably installed between the left and right installation frames, and a sealing upper cover is rotatably installed on the upper surface of the melting furnace shell. A crucible inner container used for melting a magnesium alloy material is fixedly installed in the middle of the interior of the melting furnace shell, an electromagnetic induction coil is attached to and wound around the outer surface of the crucible inner container, and a heat preservation pad is fixedly installed on the outer surface of the crucible inner container. According to the magnesium alloy electromagnetic induction heating melting furnace, the novel structural design is adopted, waste gas generated in the magnesium alloy melting process enters the purification box through the pressure relief pipe, harmful substances in the waste gas are filtered and purified through the filter cotton in the purification box, and therefore the situation that the waste gas is directly discharged to pollute the surrounding environment is avoided.

Comprising a gun body, a driving rod, a piston, a gluing assembly and a self-locking assembly, and the gun body is provided with a glue cavity and a driving cavity. The gluing assembly comprises a driving handle, a driving cylinder, a driven ring, an acting ring, a reset spring and an acting rod. The driving handle is in rolling fit with the arc-shaped face of the actuating rod through the rolling bearing on the connecting shaft, force transmission is optimized, operation is more labor-saving, the force exerting burden of an operator is relieved, long-time operation fatigue is avoided, and the gluing efficiency is remarkably improved. The balls in rolling fit with the driving rod are arranged in the driving cylinder, friction between the balls and the driving rod is reduced, and force burden is further relieved. The gluing assembly of the sealant gun is ingenious and reasonable in design, has obvious advantages compared with a traditional product, and can better meet actual gluing operation requirements.