Spirally mounted filter

Abstract

The invention discloses a spirally mounted filter which comprises a filter shell and a base connected with the filter shell. A filter element is disposed in a cavity of the filter shell, an oil outlet is arranged in the center of the base and is a cylindrical hole with internal threads, an annular boss is further outwardly arranged on an opening of the oil outlet, an annular cylinder corresponding to the cylindrical hole is further arranged in the center of a lower end cover of the filter element, and is provided with external threads matched with the internal threads of the cylindrical hole, a threaded groove is arranged on the periphery of the base and is connected with a threaded connecting plate of the filter shell, and through holes are uniformly arranged on a disc surface of the base. The cylinder is connected with the oil outlet in a threaded manner, the spirally mounted filter is convenient to install and detach and low in manufacturing cost, and is energy-saving and environment-friendly, and reliability and convenience in assembly of a product are improved.

Description

Technical field [0001] The invention relates to the technical field of filters, in particular to a spirally mounted filter. Background technique [0002] At present, the main components of the internal structure of the filters produced by the domestic filter industry are composed of filter elements, support springs, and gaskets. The support springs compress the filter elements, and the gaskets are sealed with the threaded cover. The structure and assembly process It is very mature, but in the actual assembly process, the inverted spring and the gasket caused by the assembly deviation of the support spring and the gasket block the oil outlet and the waste products are about 2% in China and 4% in foreign countries. Manual assembly is still commonly used in assembly at home and abroad. The proficiency of workers is directly related to the rejection rate of the product. The general approach is to strengthen the technical training of workers, but the failure phenomenon still canno...

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Problems solved by technology

[0002] At present, the filter produced by the domestic filter industry, the main parts of the internal structure are composed of a filter element, a support spring, and a gasket. The support spring compresses the filter element, and the gasket is sealed with the threaded cover plate. It is very mature, but in the actual assembly process, the waste products caused by the back spring and the gasket blocking the oil outlet caused by the assembly deviation of the support spring and the gasket account for about 2% in China and about 4% in foreign countries. Assembly Domestic and foreign generally use manual assembly. The proficiency of workers is directly related to the reject rate of products. The general practice is to strengthen technical training for workers, but it still cannot prevent the occurrence of this failure phenomenon.

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