A wheel changing assembly for safely changing a wheel of a vehicle includes a jack that comprises a first housing. A first power module, a first microprocessor, a pump and a lift are coupled to and positioned in the first housing. The first microprocessor is operationally coupled to the first power module. The pump is operationally coupled to the first microprocessor. The lift is fluidically coupled to the pump. A plate is coupled to a second end of the lift. A plurality of wheels is coupled to a bottom of the first housing. A camera, a plurality of lights and a locator, which are coupled to and positioned in the plate, are operationally coupled to the first microprocessor. The camera is configured to image an underside of the vehicle during placement of the jack. The locator is configured to signal proper positioning of the jack relative to the frame of the vehicle.

Disclosed is an improved garbage disposal jack for use in the installation and removal of sink mounted garbage disposals. The improved garbage disposal jack allows for rotation of the garbage disposal unit while maintaining the height during the installation or removal process.

Disclosed is an improved garbage disposal jack for use in the installation and removal of sink mounted garbage disposals. The improved garbage disposal jack allows for rotation of the garbage disposal unit while maintaining the height during the installation or removal process.

A wheel changing assembly for safely changing a wheel of a vehicle includes a jack that comprises a first housing. A first power module, a first microprocessor, a pump and a lift are coupled to and positioned in the first housing. The first microprocessor is operationally coupled to the first power module. The pump is operationally coupled to the first microprocessor. The lift is fluidically coupled to the pump. A plate is coupled to a second end of the lift. A plurality of wheels is coupled to a bottom of the first housing. A camera, a plurality of lights and a locator, which are coupled to and positioned in the plate, are operationally coupled to the first microprocessor. The camera is configured to image an underside of the vehicle during placement of the jack. The locator is configured to signal proper positioning of the jack relative to the frame of the vehicle.

A hydraulic jack capable of quickly lifting a load includes a frame (1) mounted with a lifting arm (2), a long connecting rod, a tray (4), a bracket and a hydraulic oil pump (3) for driving the lifting arm (2), and further includes a large pump (11) and a small pump (12) for supplying high pressure oil to the hydraulic oil pump (3). An inner cavity of the large pump (1) and a small pump core are axially connected to a hand press (8) respectively. The inner cavity of the large pump (11) is in communication with a first pressure regulation mechanism (9), and the inner cavity of the small pump (12) is in communication with a second pressure regulation mechanism (10). The first pressure regulation mechanism (9) comprise a first upper valve body (90) mounted on a lower valve body (33) , a first oil outlet (91) of a communicating oil compartment (32) provided on a side wall thereof, and a first oil inlet (92) provided at a bottom thereof, the first oil inlet (92) being in communication with the inner cavity of the large of the large pump (11). A central hole of the first upper valve body (90) is sequentially provided from bottom to top with a first lower steel ball (93) capable of blocking the first oil inlet (92), a first ball valve base (94), a first pressure spring (95), a first valve core (96) and a first valve rod (97), the first pressure spring (95) being disposed between the first ball valve base (94) and the first valve core (96). The second pressure regulation mechanism (10) and the first pressure regulation mechanism (9) have the same structure.

A hydraulic jack capable of quickly lifting a load includes a frame (1) mounted with a lifting arm (2), a long connecting rod, a tray (4), a bracket and a hydraulic oil pump (3) for driving the lifting arm (2), and further includes a large pump (11) and a small pump (12) for supplying high pressure oil to the hydraulic oil pump (3). An inner cavity of the large pump (1) and a small pump core are axially connected to a hand press (8) respectively. The inner cavity of the large pump (11) is in communication with a first pressure regulation mechanism (9), and the inner cavity of the small pump (12) is in communication with a second pressure regulation mechanism (10). The first pressure regulation mechanism (9) comprise a first upper valve body (90) mounted on a lower valve body (33) , a first oil outlet (91) of a communicating oil compartment (32) provided on a side wall thereof, and a first oil inlet (92) provided at a bottom thereof, the first oil inlet (92) being in communication with the inner cavity of the large of the large pump (11). A central hole of the first upper valve body (90) is sequentially provided from bottom to top with a first lower steel ball (93) capable of blocking the first oil inlet (92), a first ball valve base (94), a first pressure spring (95), a first valve core (96) and a first valve rod (97), the first pressure spring (95) being disposed between the first ball valve base (94) and the first valve core (96). The second pressure regulation mechanism (10) and the first pressure regulation mechanism (9) have the same structure.

The present invention relates to a bottle jack comprising a main body and a shaft that expands or contracts, further comprising: a passage space communicating a hydraulically operated circuit with an unloading circuit through which the controlled outlet of hydraulic fluid from the hydraulically operated circuit and subsequent lowering of the shaft occur; a closure element elastically pushed towards the passage space to prevent the outlet of hydraulic fluid therethrough; a ram assembly elastically pushed in the longitudinal backward movement direction (B) with a force greater than the force with which the closure element is elastically pushed against the passage space; and a telescopic lever assembly which can be lowered by a user to operate the hydraulically operated system.

The present invention relates to a bottle jack comprising a main body and a shaft that expands or contracts, further comprising: a passage space communicating a hydraulically operated circuit with an unloading circuit through which the controlled outlet of hydraulic fluid from the hydraulically operated circuit and subsequent lowering of the shaft occur; a closure element elastically pushed towards the passage space to prevent the outlet of hydraulic fluid therethrough; a ram assembly elastically pushed in the longitudinal backward movement direction (B) with a force greater than the force with which the closure element is elastically pushed against the passage space; and a telescopic lever assembly which can be lowered by a user to operate the hydraulically operated system.

A jacking device for lifting and supporting earthmoving equipment or vehicles, the jacking device including: a base; a jacking leg mounted to the base, the jacking leg for lifting a load to an elevated position; a top plate mounted to the jacking leg, the top plate for engaging the load; and, a support member mounted directly or indirectly to the base, wherein the support member is positionable to engage the top plate and thereby provide additional support to the load in the elevated position.

A jacking device for lifting and supporting earthmoving equipment or vehicles, the jacking device including: a base; a jacking leg mounted to the base, the jacking leg for lifting a load to an elevated position; a top plate mounted to the jacking leg, the top plate for engaging the load; and, a support member mounted directly or indirectly to the base, wherein the support member is positionable to engage the top plate and thereby provide additional support to the load in the elevated position.