184results about How to "Adjust the height arbitrarily" patented technology

The invention discloses an oil-gas integrated lifting seat rod which is composed of a central shaft, an inner shaft, a valve switch, a gas inlet rod, a gas rod plug and a movable shaft. Two oil cavities and two communicated gas cavities are formed in the seat rod, the oil cavities are closed or connected along with closing or opening of the valve switch, and lifting of the seat rod is controlled through flowing of liquid in the two oil cavities, so that the height of the seat rod can be located freely. Mutual adjustment of oil and gas is adopted to achieve the lifting function, the height can be freely adjusted according to needs of users, and the oil-gas integrated lifting seat rod is not prone to damage and convenient to adjust.

The invention relates to the field of refrigerator equipment, in particular to a refrigerator of which a shelf can be adjusted in height. The refrigerator comprises a door, guide rails, a plurality of adjusting grooves, the shelf and limiting grooves in the shelf, wherein the guide rails are vertically formed on the door, and the adjusting grooves are formed in the guide rails. The shelf is assembled on the guide rails through the limiting grooves and can move up and down. The shelf is provided with guide parts, limiting blocks and resetting devices. The resetting devices drive the limiting blocks to enter the adjusting grooves along the guide parts so that the shelf can be supported at any height. Manipulation pieces are further arranged in the shelf. The manipulation pieces and the limiting blocks mutually push tightly through slopes to be in mutual linkage. The limiting blocks can be controlled to recede out of the adjusting grooves by controlling the manipulation pieces by hand so that the shelf can be moved to a new height at will. According to the refrigerator, the height of the shelf can be quickly adjusted without taking out the shelf, so that the problem that a traditional refrigerator door shelf is inconvenient to operate is solved. Besides, the refrigerator is simple in structure and convenient to operate.

The invention discloses a vehicle-mounted portable tire auxiliary carrying device. The vehicle-mounted portable tire auxiliary carrying device comprises a base, a lifting adjusting mechanism, an uppersupporting plate and a working platform; the lifting adjusting mechanism is hinged to the base and hinged to the upper supporting plate, the working platform is installed on the upper supporting plate, and a stabilizing device on the base can drive the supporting plate to make contact with the ground. Therefore, the vehicle-mounted portable tire auxiliary carrying device can be stably supported on the ground when tires are loaded or unloaded, the vehicle-mounted portable tire auxiliary carrying device is kept stable, an adjusting lead screw in the lifting adjusting mechanism can adjust the height of the upper supporting plate, and therefore the height of the working platform is adjusted, and a first fixator, a second fixator and a grasping device on the working platform are matched with one another; the tires can be fixed from the periphery of the outer surfaces of the tires, in addition, the tires are clamped; clamping and fixing of the tires with different sizes and different flatness ratios can be achieved, meanwhile, the vehicle-mounted portable tire auxiliary carrying device is more stable in the carrying process, the tires are prevented from falling off from the working platform, and it can be guaranteed that the process is stable and the tires do not suddenly slide off when the tires are unloaded.