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[CN 201710312516.3] Oil filter for press and working method thereof
[CN 201710312516.3] An Oil Filter for Press and Its Working Method Title: An Oil Filter for Press and Its Working Method Application Number: CN 201710312516.3 Applicant: Tongxiang Kaisheng Precision Machinery Co., Ltd. Application Date: 2017-5-5 Patent Type: Invention Application The present invention relates to an oil filter for press and its working method, belonging to the field of machinery. It includes a nozzle, an oil cup, a protective cover, a body, an oil suction pipe, a one-way valve and a throttle valve. The body is provided with an airway, and the airway is provided with a fixed tongue valve assembly. The fixed tongue valve assembly includes a tongue valve. The tongue valve includes an upper part of the tongue valve and a lower part of the tongue valve. The upper part of the tongue valve and the lower part of the tongue valve are rotatably connected, the concave groove includes concave groove side wall and arc-shaped concave groove. The concave groove side wall is located on the left side of the arc-shaped concave groove. The edge of the concave groove side wall is connected with the edge of the arc-shaped concave groove. The upper part of the tongue-shaped valve is rod-shaped. The shape of the arc-shaped concave groove is the arc of a perfect circle. The edge of the concave groove side wall points to the center of the arc-shaped concave groove, the radius of curvature of the arc-shaped concave groove is equal to the length of the upper part of the tongue-shaped valve.
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