Abstract: A power structure of a hydraulic tool contains a base including an outer thread section, a first passage, a second passage, a first hole, a second hole, and a first groove; a first connecting unit including a first tap, a first adapter, a first joint, and a first check nut; a second connecting unit including a second tap, a second adapter, a second joint, and a second check nut; a cylindrical tube including a receiving space, first external screws, first internal screws, and second internal screws; a first spindle including a first path and a second groove; a second spindle including a second path, two orifices, second external screws, third internal screws, and a third groove; a retaining loop; a fitting loop; a plug; a paw unit.

Abstract: A power structure of a hydraulic tool contains a base including an outer thread section, a first passage, a second passage, a first hole, a second hole, and a first groove; a first connecting unit including a first tap, a first adapter, a first joint, and a first check nut; a second connecting unit including a second tap, a second adapter, a second joint, and a second check nut; a cylindrical tube including a receiving space, first external screws, first internal screws, and second internal screws; a first spindle including a first path and a second groove; a second spindle including a second path, two orifices, second external screws, third internal screws, and a third groove; a retaining loop; a fitting loop; a plug; a paw unit.

Abstract: A hydraulic tool for assembling and disassembling components, such as gears, bearings, etc. of a shaft, is capable of performing an external-pulling or an internal-pulling operation as desired for an object to be assembled or disassembled. The hydraulic tool includes an oil pressure assembly having a hand-operated pump, an oil storage member, a control valve, an oil pressure tank, a set of external pulling type clamping jaws, internal pulling type clamping jaws, and a bolt for assembling purpose. The hydraulic tool has high mobility and portability, is capable of performing assembling or disassembling operations at any angle and position, and is considerably enhanced in applicability.

Abstract: A puller device comprises a support set disposed on one end of a base for moving the puller device vertically and connected with a cylinder, a hydraulic pump mounted on one end of the cylinder; an adjusting assembly fixed on the action end of the support set for adjustably tilting the pulling assembly and including a fixed member secured proximate to the lower end thereof and pivotally coupled with a movable member attached on the upper end of the adjusting assembly, and first and second fastening parts extendedly arranged on the fixed and movable members respectively for inserting through a micro-adjusting post so as to adjustably move the pulling assembly vertically; a pulling assembly assembled on one end of the adjusting assembly for dissembling the large-size workpiece and including a cylinder disposed on one end thereof for driving a hook set to expand or retract to pull the workpiece.

Abstract: A hydraulic tool for assembling and disassembling components, such as gear, bearing and etc, of a shaft, is capable of performing external-pulling or internal pulling operation as desired for an object to be assembled or disassembled. The hydraulic tool comprises an oil pressure assembly consisted of a hand-operated pump, an oil storage member, a control valve, an oil pressure tank, a set of external pulling type clamping jaws, internal pulling type clamping jaws, and a bolt for assembling purpose. The hydraulic tool has high mobility, portability and is capable of perforation assembling or disassembling operation at any angle and position, and is considerably enhanced in applicability.

Abstract: An electronic device includes a main housing with a plurality of electronic components contained therein, and a remote controller configured for controlling the electronic components contained in the main housing. A receptacle is formed in the main housing and a charging unit is disposed in the main housing. The remote controller is detachably docked in the receptacle and configured for being charged by the charging unit when the remote controller is installed in the receptacle.