An adjustable levelling pad includes a first component provided with first screw threads, a second component provided with second screw threads cooperating with the first screw threads of the first component and a third component having a bearing surface cooperating with the first component. The thread entrance angle of the second screw threads of the second component is less than 35°.

Various embodiments illustrated herein disclose a leveling foot tool which comprises a first base and a threaded rod. The threaded rod comprises a cavity to insert a screw nut and bolt assembly. A socket driver is installed over the screw nut and bolt assembly. The leveling foot tool is mounted on a drill. The first base of the leveling foot tool has one or more holes through which one or more screw nut and bolt assemblies are threaded . A leveling foot, which is to be installed comprises a second base and a threaded rod. The second base of the leveling foot comprises one or more holes to receive the one or more screw assemblies of the leveling foot tool. Using the rotational and the translational motion of the drill, the threaded rod of the leveling foot is drilled into a threaded hole of a leg of a machine.

Various embodiments illustrated herein disclose a leveling foot tool which comprises a first base and a threaded rod. The threaded rod comprises a cavity to insert a screw nut and bolt assembly. A socket driver is installed over the screw nut and bolt assembly. The leveling foot tool is mounted on a drill. The first base of the leveling foot tool has one or more holes through which one or more screw nut and bolt assemblies are threaded . A leveling foot, which is to be installed comprises a second base and a threaded rod. The second base of the leveling foot comprises one or more holes to receive the one or more screw assemblies of the leveling foot tool. Using the rotational and the translational motion of the drill, the threaded rod of the leveling foot is drilled into a threaded hole of a leg of a machine.

Disclosed is a system for leveling an object, e.g., cabinet, bathroom divider, using a system that is contained in a box that is splitable into two symmetrical halves. Each half has a clutch operated vertically-adjustable support member with a threaded upper end. Extension members of various lengths can be used to accommodate the need for different supporting heights. Regardless of whether an extension member is used or not, a clutch release allows the support to be raised to approximately the right height on each side underneath the object, and then a thumb-screw operated system allows for fine tuning. The system can be used to support and level heavy objects by a single worker.

Disclosed is a system for leveling an object, e.g., cabinet, bathroom divider, using a system that is contained in a box that is splitable into two symmetrical halves. Each half has a clutch operated vertically-adjustable support member with a threaded upper end. Extension members of various lengths can be used to accommodate the need for different supporting heights. Regardless of whether an extension member is used or not, a clutch release allows the support to be raised to approximately the right height on each side underneath the object, and then a thumb-screw operated system allows for fine tuning. The system can be used to support and level heavy objects by a single worker.

A device for host structures having an elongated section, for attaching, leveling, stabilizing and protecting such host structures. The device includes: (a) a support pad having a top, a bottom and at least one side wall, and at least one groove on its top, adapted to receive an elongated section of the host structure, and having a plurality of anchor-receiving orifice; and (b) at least one triple action anchor, being inverted U-shaped and adapted to be inserted into opposing anchor-receiving orifices, and being adopted to straddle the elongated section, with sufficient length to extend through said orifices and into ground to anchor said support pad and said elongated section. Secondary stackable support pads increase the thickness of the device for steep slope leveling.

A device for host structures having an elongated section, for attaching, leveling, stabilizing and protecting such host structures. The device includes: (a) a support pad having a top, a bottom and at least one side wall, and at least one groove on its top, adapted to receive an elongated section of the host structure, and having a plurality of anchor-receiving orifice; and (b) at least one triple action anchor, being inverted U-shaped and adapted to be inserted into opposing anchor-receiving orifices, and being adopted to straddle the elongated section, with sufficient length to extend through said orifices and into ground to anchor said support pad and said elongated section. Secondary stackable support pads increase the thickness of the device for steep slope leveling.

The present disclosure provides an adjustment bracket and a projector, and relates to the technical field of projection devices. The adjustment bracket includes: an adjustment roller; an adjustment foot; and an adjustment foot gear. An adjustment gear is fixed to the adjustment roller, the adjustment gear is engaged with the adjustment foot gear, internal threads are provided at a center position of the adjustment foot gear, an outer wall of the adjustment foot is provided with external threads, and the adjustment foot is connected to the adjustment foot gear by the internal threads and the external threads. A pitch angle or height of an electronic device such as a projector can be adjusted by a combination of a gear transmission and threads, and a structure thereof is simple and an operation thereof is convenient.

The present disclosure provides an adjustment bracket and a projector, and relates to the technical field of projection devices. The adjustment bracket includes: an adjustment roller; an adjustment foot; and an adjustment foot gear. An adjustment gear is fixed to the adjustment roller, the adjustment gear is engaged with the adjustment foot gear, internal threads are provided at a center position of the adjustment foot gear, an outer wall of the adjustment foot is provided with external threads, and the adjustment foot is connected to the adjustment foot gear by the internal threads and the external threads. A pitch angle or height of an electronic device such as a projector can be adjusted by a combination of a gear transmission and threads, and a structure thereof is simple and an operation thereof is convenient.

An apparatus for adjusting a width of a rail mechanism is disclosed. The rail mechanism includes a fixed rail and a movable rail parallel with each other. The apparatus for adjusting the width includes: a base configured to be provided thereon with the fixed rail; a first guide rail provided on the base and configured to be installed with the movable rail, the movable rail being movable towards or away from the fixed rail along an axial direction of the first guide rail; a moving distance acquiring module configured to acquire a moving distance required for the movable rail to move from an initial position to a working position; and a driving assembly detachably connected with the movable rail and configured to drive the movable rail to move from the initial position to the working position based on the moving distance.