ELECTRONIC PILOT VALVE FOR FIRMLY FASTENING AN ELECTRONIC VALVE BLOCK OR A SERIES OF ELECTRONIC VALVE BLOCKS TO A MANIFOLD BLOCK

摘要

PURPOSE: An electronic pilot valve is provided to restrict the washer from being loosened, deformed or displaced from the washer engagement groove with elastic repulsive force by contacting the engagement portion of the washer to the side wall of the washer engagement groove and tightening the screw. CONSTITUTION: An electronic valve block(10) is placed in the upper part of a manifold block(16), and a bearing surface(15) is formed near a screw accommodating recess(13) in the upper part of the electronic valve block. A washer engagement groove(20) is formed in the bearing surface, and an engagement portion(25) inside a washer(24) inclined inward and mounted in a screw(11) is contacted to the side wall of the washer engagement groove. The electronic valve block is securely fastened to the manifold block by using the screw. The washer engagement groove is formed in the outer periphery of the bearing surface, and the engagement portion of the washer is combined with the inclined portion of the washer engagement groove.