Provided is a chocking device, including a frame, a plate, and a stop. The frame has an uppermost surface and a lowermost surface. The plate has a substantially planar contact surface and includes an operating region. The plate is movable between a first position, wherein the contact surface is arranged substantially coextensively with the uppermost surface, and a second position, wherein the contact surface is arranged between the uppermost and lowermost surfaces. The stop is coupled to the frame and has an operating portion arranged in direct contact with the operating region. The stop is rotatable such that movement of the plate from the first position to the second position rotates the stop from a first stop position to a second stop position. The operating region is arranged nearer to the uppermost surface than is the operating portion when the stop is in the first and the second stop positions.

Provided is a chocking device, including a frame, a plate, and a stop. The frame has an uppermost surface and a lowermost surface. The plate has a substantially planar contact surface and includes an operating region. The plate is movable between a first position, wherein the contact surface is arranged substantially coextensively with the uppermost surface, and a second position, wherein the contact surface is arranged between the uppermost and lowermost surfaces. The stop is coupled to the frame and has an operating portion arranged in direct contact with the operating region. The stop is rotatable such that movement of the plate from the first position to the second position rotates the stop from a first stop position to a second stop position. The operating region is arranged nearer to the uppermost surface than is the operating portion when the stop is in the first and the second stop positions.

Disclosed herein is a wheel shield apparatus that includes a pair of elongated parallel tube members in perpendicular engagement with a pair of short parallel tube members, at least one removable side of the wheel shield apparatus is operable to be temporarily opened or removed such that the wheel shield apparatus may be placed around a wheel of a neurosurgical microscope or some other type of heavy wheeled machinery and the removable side may be placed in a closed position such that the wheel shield surrounds the wheel. Each of the pair of elongated parallel tube members and/or each of the pair of short parallel tube members comprises a cavity configured to receive a ballast material to provide sufficient weight to ensure that the wheel shield apparatus contacts the floor such that cables along the floor are pushed out of the way by the wheel shield apparatus and prevented from being run over while the machinery is being transported.

Disclosed herein is a wheel shield apparatus that includes a pair of elongated parallel tube members in perpendicular engagement with a pair of short parallel tube members, at least one removable side of the wheel shield apparatus is operable to be temporarily opened or removed such that the wheel shield apparatus may be placed around a wheel of a neurosurgical microscope or some other type of heavy wheeled machinery and the removable side may be placed in a closed position such that the wheel shield surrounds the wheel. Each of the pair of elongated parallel tube members and/or each of the pair of short parallel tube members comprises a cavity configured to receive a ballast material to provide sufficient weight to ensure that the wheel shield apparatus contacts the floor such that cables along the floor are pushed out of the way by the wheel shield apparatus and prevented from being run over while the machinery is being transported.

The present utility model discloses a tire fastening device, comprising a support seat, wherein an end portion of the support seat is slidably connected to a moving rod, a collar is sleeved and mounted on an outer surface of the moving rod, a fastening plate is welded and fixed on both a lower surface of the collar and a side surface of the support seat, a fixing plate is welded and fixed at one end inside the support seat, a screw rod is rotatably connected to a bearing via the fixing plate inside the support seat, and a second torsion gear is welded and fixed at one side of the fixing plate at an end portion of the screw rod; by designing the screw rod inside the support seat, and designing the first connecting plate and the moving head at the end of the moving rod, it is possible to move the moving head on the outer surface of the screw rod when the support seat and the fastening plate are closed on one side of the tire when the screw rod situ, and the moving rod is moved on the end of the support seat by the first connecting plate when the moving head moves.

A positive pressure chock system has a first arm with a first wheel chock and a second arm with a second wheel chock. The first wheel chock is attached at a bottom end of the first arm and the second wheel chock is positioned at a bottom end of the second arm. The first arm and the second arm are attached at a hinge point such that the first wheel chock and the second wheel chock are movable between an open position where the first wheel chock and the second wheel chock move away from each other and a closed position in which the first wheel chock is biased towards the second wheel chock.

A positive pressure chock system has a first arm with a first wheel chock and a second arm with a second wheel chock. The first wheel chock is attached at a bottom end of the first arm and the second wheel chock is positioned at a bottom end of the second arm. The first arm and the second arm are attached at a hinge point such that the first wheel chock and the second wheel chock are movable between an open position where the first wheel chock and the second wheel chock move away from each other and a closed position in which the first wheel chock is biased towards the second wheel chock.

An improved coupler for a tongue on a towed vehicle that attaches to a tow hook mounted on a towing vehicle to either pull the towed vehicle over a road or to pull the towed vehicle located on an elevated surface. The coupler includes an elongated tongue tube attached to the end of the tongue attached to the towed vehicle. Upper and lower rings are axially aligned and mounted or attached to the front surface of the tongue tube. The rings are spaced apart on the tongue tube to allow the towing vehicle to pull or push the towed vehicle over the same roadway or an elevated surface. Brackets are used between the tongue tube and the trailer tongue to prevent compression, collapse, and fore to aft or aft to fore movements. An adjustable jack is attached to the side of the tongue tube. An optional lid is provided over the top opening of the tongue tube that covers a storage compartment inside the tongue tube. An optional chock holder plate and a pair of compatible chocks may be placed inside the storage compartment.

The wheel chock includes a locking mechanism that can be held in a locked state when properly positioned on a base plate. The locking mechanism includes a positioning unit having at least one tooth provided to engage a side of a corresponding one of the blocking elements in a latched engagement when the positioning unit is in the fully locked position. The locking mechanism also includes first means for moving the positioning unit from the unlocked position towards the fully locked position, and second means for selectively holding the positioning unit in the fully locked position.

The wheel chock includes a locking mechanism that can be held in a locked state when properly positioned on a base plate. The locking mechanism includes a positioning unit having at least one tooth provided to engage a side of a corresponding one of the blocking elements in a latched engagement when the positioning unit is in the fully locked position. The locking mechanism also includes first means for moving the positioning unit from the unlocked position towards the fully locked position, and second means for selectively holding the positioning unit in the fully locked position.