A power unit for a hydraulic floor jack is provided having a unitary forged steel manifold engaged with a ram assembly, the ram assembly and manifold being selected from materials and finishes that when interacting with a cylinder bearing, exhibits a longer performance life.

A power unit for a hydraulic floor jack is provided having a unitary forged steel manifold engaged with a ram assembly, the ram assembly and manifold being selected from materials and finishes that when interacting with a cylinder bearing, exhibits a longer performance life.

A pressing-pulling device, a polymer anti-seepage wall static pressure vibration composite slotting equipment and a using method include: a pressing-pulling bracket, wherein slotting oil cylinders are symmetrically and vertically mounted on the pressing-pulling bracket, and a piston rod of each of the slotting oil cylinders faces downwardly, a bottom end of the piston rod is connected to a connecting plate, and a through-hole is provided in a middle of the connecting plate; a continuous lifting mechanism is installed in a middle of the pressing-pulling bracket, and a slotting rod is vertically inserted into the continuous lifting mechanism; a lifting ring is installed at a top end of the slotting rod; a bottom end of the slotting rod extends downwardly through the through-hole to connect to a slotting cutter; a locking device is fixed on the connecting plate near the through-hole for fixing the slotting rod.

A pressing-pulling device, a polymer anti-seepage wall static pressure vibration composite slotting equipment and a using method include: a pressing-pulling bracket, wherein slotting oil cylinders are symmetrically and vertically mounted on the pressing-pulling bracket, and a piston rod of each of the slotting oil cylinders faces downwardly; a bottom end of the piston rod is connected to a connecting plate, and a through-hole is provided in a middle of the connecting plate; a continuous lifting mechanism is installed in a middle of the pressing-pulling bracket, and a slotting rod is vertically inserted into the continuous lifting mechanism; a lifting ring is installed at a top end of the slotting rod; a bottom end of the slotting rod extends downwardly through the through-hole to connect to a slotting cutter; a locking device is fixed on the connecting plate near the through-hole for fixing the slotting rod.

A pressing-pulling device, a polymer anti-seepage wall static pressure vibration composite slotting equipment and a using method include: a pressing-pulling bracket, wherein slotting oil cylinders are symmetrically and vertically mounted on the pressing-pulling bracket, and a piston rod of each of the slotting oil cylinders faces downwardly; a bottom end of the piston rod is connected to a connecting plate, and a through-hole is provided in a middle of the connecting plate; a continuous lifting mechanism is installed in a middle of the pressing-pulling bracket, and a slotting rod is vertically inserted into the continuous lifting mechanism; a lifting ring is installed at a top end of the slotting rod; a bottom end of the slotting rod extends downwardly through the through-hole to connect to a slotting cutter; a locking device is fixed on the connecting plate near the through-hole for fixing the slotting rod.

A vertical lifting system for use in farming machines and tools that is formed by a wheel set support arm (01) connected to an articulation support (02) using the pin (04), the articulation support (02) being connected to the wheel hub (05), which is in turn connected to the wheel rim (06). To move the assembly, a hydraulic actuator (07) is connected by the pin (08) to the wheel set support arm (01) and to the articulation support (02) by the pin (09). The height adjustment is provided by the actuator (07), and the mechanism, once actuated, travels around the inside of the wheel rim (06), remaining inside same, and protected in both height adjustment positions of the tool.

The invention discloses a small automatic tire changing machine, which comprises an upper casing, wherein an installation cavity is provided in the upper casing, and a detachable sleeve disc oil tank is arranged in the installation cavity. There are bumps on the wall. The invention has simple structure, convenient maintenance, and convenient use. The device can be used in emergency situations, and it can automatically disassemble and assemble the tires of the vehicle, which greatly simplifies the tire change process and improves the vehicle. In addition to the disadvantages of laborious disassembly and removal of hub screws compared with traditional tire replacement tools, the device does not require laborious disassembly of the hub screws, so that female users can easily change tires by themselves. The device is small in size, stable and safe in work. Can be put in the car to go with the car for emergency needs.

The invention discloses a small automatic tire changing machine, which comprises an upper casing, wherein an installation cavity is provided in the upper casing, and a detachable sleeve disc oil tank is arranged in the installation cavity. There are bumps on the wall. The invention has simple structure, convenient maintenance, and convenient use. The device can be used in emergency situations, and it can automatically disassemble and assemble the tires of the vehicle, which greatly simplifies the tire change process and improves the vehicle. In addition to the disadvantages of laborious disassembly and removal of hub screws compared with traditional tire replacement tools, the device does not require laborious disassembly of the hub screws, so that female users can easily change tires by themselves. The device is small in size, stable and safe in work. Can be put in the car to go with the car for emergency needs.

A method and apparatus for transporting heavy machinery, equipment or other heavy loads from one location to another, whereby the apparatus may be constructed as a walking machine including a plurality of lifting assemblies operative to lift the load above the supporting surface and then move the load relative to the supporting surface by transporting the load via rollers or tracks in the walking machines. In one example, the lifting assemblies are provided with separate longitudinal and lateral drive mechanisms independently operative for translating the load in either or both longitudinal and lateral directions.

A method and apparatus for transporting heavy machinery, equipment or other heavy loads from one location to another, whereby the apparatus may be constructed as a walking machine including a plurality of lifting assemblies operative to lift the load above the supporting surface and then move the load relative to the supporting surface by transporting the load via rollers or tracks in the walking machines. In one example, the lifting assemblies are provided with separate longitudinal and lateral drive mechanisms independently operative for translating the load in either or both longitudinal and lateral directions.