The present invention provides a double parallelogram vertical lifting device comprising a linkage mechanism and a pushing device. The linkage mechanism comprises a first shaft seat, a second shaft seat, a third shaft seat, an upper support unit movably coupled to the first shaft seat and the second shaft seat on both ends, and a lower support unit movably coupled to the second shaft seat and the third shaft seat on both ends. The upper support unit is provided with a first gear, and the lower support unit is provided with a second gear that meshes with the first gear. The pushing device has one end set on the upper support unit and the other end set on the lower support unit. The invention utilizes the interaction of the first gear and the second gear to generate a reaction force, which enables the lower support unit to cooperate with the upper support unit to move up and down synchronously, and achieves the effect of simple structure and large load capacity.

The present invention provides a double parallelogram vertical lifting device comprising a linkage mechanism and a pushing device. The linkage mechanism comprises a first shaft seat, a second shaft seat, a third shaft seat, an upper support unit movably coupled to the first shaft seat and the second shaft seat on both ends, and a lower support unit movably coupled to the second shaft seat and the third shaft seat on both ends. The upper support unit is provided with a first gear, and the lower support unit is provided with a second gear that meshes with the first gear. The pushing device has one end set on the upper support unit and the other end set on the lower support unit. The invention utilizes the interaction of the first gear and the second gear to generate a reaction force, which enables the lower support unit to cooperate with the upper support unit to move up and down synchronously, and achieves the effect of simple structure and large load capacity.

An expandable car jack including a base with a first base extension member and a second extension member rotatably, removably, and directly coupled to one another, the first and second base extension members operably configured to rotate with respect to one another to define a planar lower support surface forming an x-shape or a substantially perpendicular configuration. The expandable car jack may also include a plurality of hinged members supported by the base, wherein the plurality of hinged members define a lifting surface and are coupled together with a screw, the screw operably configured to rotate, expand and contract a width separating the plurality of hinged members, and place the lifting surface at a plurality of raised height positions.

An expandable car jack including a base with a first base extension member and a second extension member rotatably, removably, and directly coupled to one another, the first and second base extension members operably configured to rotate with respect to one another to define a planar lower support surface forming an x-shape or a substantially perpendicular configuration. The expandable car jack may also include a plurality of hinged members supported by the base, wherein the plurality of hinged members define a lifting surface and are coupled together with a screw, the screw operably configured to rotate, expand and contract a width separating the plurality of hinged members, and place the lifting surface at a plurality of raised height positions.

An apparatus for aligning tubes of a heat exchanger includes a generally planar body having an insertion end and an actuator end, a first driving member received by the body and extending between the insertion end and the actuator end, the first driving member being movable axially with respect to the body, and a first biasing member operatively connected to the first driving member. The first driving member is actuatable to move the first biasing member between a clearance position in which the first driving member lays generally flat within respect to the body, and an extended position in which the first biasing member extends generally perpendicular from the body.

An upstart motorcycle jack system that lifts a motorcycle from laying on its side to an upright position includes a scissor jack, a foot, a fulcrum pin, a mounting adaptor, and a motorcycle lift bracket. The motorcycle lift bracket is integrated onto the motorcycle. The foot is hingedly connected to a base pad of the scissor jack. The scissor jack pivotably mounts to the motorcycle lift bracket through the mounting adaptor and the fulcrum pin to initiate the lifting process. The mechanical leverage for the lifting process is provided by the scissor jack to lift the dead weight of the motorcycle pass a 45-degree angle. The scissor jack also transfers some of the motorcycle weight to the foot when the base pad starts to tilt toward the motorcycle. Once the scissor jack is fully extended, a rider can easily push the motorcycle back into the upright position.

An upstart motorcycle jack system that lifts a motorcycle from laying on its side to an upright position includes a scissor jack, a foot, a fulcrum pin, a mounting adaptor, and a motorcycle lift bracket. The motorcycle lift bracket is integrated onto the motorcycle. The foot is hingedly connected to a base pad of the scissor jack. The scissor jack pivotably mounts to the motorcycle lift bracket through the mounting adaptor and the fulcrum pin to initiate the lifting process. The mechanical leverage for the lifting process is provided by the scissor jack to lift the dead weight of the motorcycle pass a 45-degree angle. The scissor jack also transfers some of the motorcycle weight to the foot when the base pad starts to tilt toward the motorcycle. Once the scissor jack is fully extended, a rider can easily push the motorcycle back into the upright position.

A stabilized jack assembly is a device utilized to elevate and stabilize a vehicle. The device eliminates the need for the user to venture beneath the vehicle before the vehicle is stabilized. The device includes a planar base that provides stability for the device on a flat surface. A scissor lift assembly is utilized to elevate and lower a mounting head that is placed into contact with the vehicle. A threaded spindle is axially engaged through the scissor lift assembly and is rotated in order to elevate and lower the mounting head. A plurality of support struts is utilized to stabilize the device once the vehicle is elevated. The plurality of support struts is removably engaged into a plurality of strut braces on the planar base. The plurality of support struts is able to automatically engage the plurality of strut braces when the vehicle has been sufficiently elevated.

A stabilized jack assembly is a device utilized to elevate and stabilize a vehicle. The device eliminates the need for the user to venture beneath the vehicle before the vehicle is stabilized. The device includes a planar base that provides stability for the device on a flat surface. A scissor lift assembly is utilized to elevate and lower a mounting head that is placed into contact with the vehicle. A threaded spindle is axially engaged through the scissor lift assembly and is rotated in order to elevate and lower the mounting head. A plurality of support struts is utilized to stabilize the device once the vehicle is elevated. The plurality of support struts is removably engaged into a plurality of strut braces on the planar base. The plurality of support struts is able to automatically engage the plurality of strut braces when the vehicle has been sufficiently elevated.

An apparatus for plumbing a transmission or distribution pole comprising: multiple pole brackets connected with an adjustable ratchet strap; multiple scissor jacks with each having a jack mount; at least one power drill or hand crank to adjust the scissor jack; whereby the pole can be efficiently adjusted into the proper plumb or leveled position.