Patent ID: 11952248
Assignee: WALTON.K.K INTERNATIONAL BUSINESS GROUP, INC.
Field: Handling (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. A hydraulic jack, comprising:
a hydraulic cylinder storing hydraulic fluid inside;
a piston installed in the hydraulic cylinder that is raised up from the hydraulic cylinder by a pressure of the hydraulic fluid stored in the hydraulic cylinder, wherein the piston is used to lift up a heavyweight; and wherein the piston has a through hole on a body thereof, the through hole has a determined diameter and is perpendicular to the piston; and
a bracket mounted on a top of an exterior wall of the hydraulic cylinder, wherein the bracket is mounted on the top of the exterior wall of the hydraulic cylinder by a fastening device, and comprises two parallel supporting plates surrounding the piston, each of which has a through hole, and wherein when in use, the through holes of the supporting plates are aligned with the through hole of the piston after the piston is raised up.