A lifting device with a head cavity in the lifting member shaped to accept a removable lifting head. The head cavity in the lifting devicee.g., the piston of a bottle jackmay be provided with threads, or may have the threads removed. A yoke fitted on the lifting head provides registration, horizontal restraint, or both against a lifted object, component, or surface to prevent sliding off the lifting head while in use. In a smooth-walled-shaft embodiment, a set of risers (spacers, adjusters, trims, or shims) serves to adjust an extension height of the shaft, elevating the lifting head with respect to the piston prior to beginning to lift the hydraulic piston.

Disclosed is a vehicle jack device. The vehicle jack device according to an exemplary embodiment of the present invention includes: a base portion in which an inserting hole into which a hinge shaft is inserted is formed and which is supported on a bottom side; a pair of lower arms of which a first portion is installed in the hinge shaft of the base portion in a rotatable way and in which a reinforcing rib is formed in a lengthwise direction; a pair of upper arms respectively installed in a second portion of the lower arm, and on which a reinforcing rib is formed in a lengthwise direction; a bracket member for fixing a first portion of the upper arm in a rotatable way; and a driver installed between the lower arm and the upper arm and providing a tucking driving force to the lower arm and the upper arm. Herein, multiple reinforcing ribs are formed with different heights in a lengthwise direction of the lower arm and wherein the upper arm, the base portion, the lower arm, the upper arm, and the bracket member are made of a plastic material.

The present disclosure provides a hydraulic lifting support, washing machine and controlling method. The hydraulic lifting support comprises a hydraulic support, a communicating device and a liquid storage device. The hydraulic support comprises a fix section installed at a bottom of a household appliance, a movable adjustment section sleeved with the fix section and axially movable relative to the fix section; an accommodation chamber is arranged between the fix section and the movable adjustment section; at least two hydraulic supports and a liquid storage device are communicated with each other by a communicating device; the hydraulic medium flows between the hydraulic supports along with the pressure changing, and the hydraulic medium drives the movable adjustment section to move axially for leveling under pressure; the hydraulic medium is injected into/sucked from the hydraulic supports through the liquid storage device to control the lifting and lowering adjustment of the hydraulic supports.

A jack assembly includes a jack base and a primary support assembly. The primary support assembly includes a lift arm movably coupled to the jack base such that the jack assembly is movable between a lowered position and a raised position, a primary support member coupled to the lift arm and configured to engage a load when the jack assembly is in the raised position, and a handle configured to enable a user to cause movement of the lift arm. The jack assembly further includes a secondary support assembly. The secondary support assembly includes a secondary base supported by the jack base, a telescoping support movably coupled to the secondary base, and a secondary support member movably coupled to the telescoping support and coupled to the primary support member such that movement of the primary support member toward the raised position causes a corresponding movement in the secondary support member.

The present disclosure relates to a cabin lifter for a material transfer unit comprising at least one hydraulic cylinder supported in a damped manner. The present disclosure is further directed to a corresponding damping bush for damping the hydraulic cylinder and to a material transfer unit comprising a corresponding cabin lifter.

An apparatus for partially supporting a vehicle is provided especially for a vehicle having a very limited area on its underside within which to safely apply an upward force, including vehicles with a small distance between the bottom of the chassis and the ground such as a sports car which allows the user to position a lifting jack at the proper access jack point for lifting a portion of the vehicle, and lifting the jack and vehicle portion upwardly to a desired height. The legs of the jack stand can be temporarily inserted into a support member engaging the vehicle and the jack. The jack stand includes a support member with open ends telescopically connected to a pair of rigid legs that are curved and each of the legs are telescopically attached to supporting bases using locking pins. Once the jack stand is installed, the lifting jack can be removed.

A support assembly comprises a bracket, a blocking member, and a spring. The blocking member is adapted to slidingly move within a through opening of a support member. The blocking member is adapted to be selectively moved from a supporting position to a non-supporting position. The spring is adapted to bias the blocking member towards the non-supporting position. In certain embodiments, the bracket is adapted to retain the blocking member at least partially within the through opening when the bracket is mounted to a hoist. In certain embodiments, the blocking member comprises a handle comprising a pin axially aligned within a compression spring and the bracket comprises a notch adapted to receive the handle.

A supporting collar is for a lift system having a piston rod that is extendable out of a cylinder to raise a load. The supporting collar has a first body portion including a first sidewall segment; a second body portion pivotably coupled to the first body portion by a pivot hinge, the second body portion having a second sidewall segment. The first and second body portions are pivotable relative to each other into an open position in which the piston rod is receivable between the first and second sidewall segments and a closed position in which the piston rod is retained between the first and second sidewall segments. The first and second sidewall segments are configured to support a weight of the load; and a grip actuator configured for a user to pivot the first body portion and the second body portion into the open position