Abstract: A clamping device with a linking member, the linking member is pivotally connected with a first and a second slide member, the slide members can be extended outwards and contracted inwards; wherein when deviation angles of two guide slits of the linking member are sharp angles, the first and the second slide members are at their initiate positions, and when deviation angles of two guide slits are obtuse angles, the first and the second slide members are at their extending positions.

Abstract: A suction disc unit, especially a suction disc unit that can be adsorbed on a smooth surface to support a hung article, it comprises a pressing lid, a suction disc, a link and a pressing rod; wherein the pressing rod at least has a first eccentric protruding portion and a second eccentric protruding portion; when the pressing lid is pulled up to make abutment of the suction disc against the smooth surface by pushing of the pressing rod, the air in the gap between the suction disc and the smooth surface is removed as much as it can; when the pressing rod is pressed down, the pressing lid abuts against the periphery of the suction disc, and the central portion of the suction disc is pulled up tight, the air pressure in the gap is much lower than that of the atmosphere to thereby induce a strong suction force, and thereby to increase the bearing strength of the suction disc unit.

Abstract: A suction disc unit, especially a suction disc unit that can be adsorbed on a smooth surface to support a hung article, it comprises a pressing lid, a suction disc, a link and a pressing rod; wherein the pressing rod at least has a first eccentric protruding portion and a second eccentric protruding portion; when the pressing lid is pulled up to make abutment of the suction disc against the smooth surface by pushing of the pressing rod, the air in the gap between the suction disc and the smooth surface is removed as much as it can; when the pressing rod is pressed down, the pressing lid abuts against the periphery of the suction disc, and the central portion of the suction disc is pulled up tight, the air pressure in the gap is much lower than that of the atmosphere to thereby induce a strong suction force, and thereby to increase the bearing strength of the suction disc unit.

Abstract: The flashlight has on its lamp holder a movable member able to move into the lamp holder, the movable member is fixedly provided with an electric conductive strip; and has a restorable spring to normally push the movable member out of the lamp holder that is normally kept in a position to render the electric conductive strip to contact with the contact point of the circuit board. When the flashlight is turned on, a light source is created by electric connecting of a light emitting element effected by an electric conductive strip. When the flashlight is laid upside down with the lamp holder facing downwards to be not in use for a moment, by the weight of the flashlight, the movable member is moved into the lamp holder to release the electric conductive strip from contact with the contact point of the circuit board, hence the light emitting member is electrically broken, and a function of saving electric energy can be obtained.