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[CN 201821140676.0] Composite hydraulic cylinder structure for hydraulic press
[CN 201821140676.0] Title of a composite hydraulic cylinder structure for hydraulic press: Application number of a composite hydraulic cylinder structure for hydraulic press: CN 201821140676.0 Applicant: Wenzhou Oukai Machinery Co., Ltd. Application Date: 2018-7-19 Patent Type: Utility Model The utility model discloses a composite hydraulic cylinder structure for hydraulic press, including a cylinder body, a cylinder head and a piston rod, the cylinder head is fixedly installed at the upper end of the cylinder body, and the piston rod is movably installed in the cylinder body, the lower part of the cylinder body is provided with a first oil inlet to conduct with the cylinder body. The middle part of the cylinder body is screwed with a nut, the lower end outer circle is provided with a mounting flange, and the lower end inner circle of the cylinder body is provided with a cylinder port guide sleeve. The cylinder head is provided with a second oil inlet, a third oil inlet, an oil passage, and a cylinder head cavity, the upper part of the piston rod is matched with the plunger with a plunger cavity. A guide sleeve is installed at the opening of the plunger cavity to seal, guide and support the plunger. The upper outer circle of the piston rod is fastened with a piston ring through the first and second parallel caps. The outer circle of the lower end of the piston rod is screwed with a connecting ring, and a number of connecting bolts are installed on the connecting ring; the lower end of the piston rod is also provided with an ejector assembly.
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