Our company obtained a patent of An electro-hydraulic control valve under water for drilling On July 16, 2021

Patent Number: ZL 2020 2 2939052.9

Abstract:  

The utility model relates to a electro-hydraulic control valve under water for drilling, including a body,  the top of the body is provided with a connecting seat, and the surface of the connecting seat is connected with a coil , the surface of the body is provided with an anti-stuck mechanism, and the interior of the anti-card mechanism comprises two shells, the two sides of the shell are provided with a connecting plate respectively, and the top thread of the connecting plate is connected with a hand screw bolt, the hand screw bolt is threaded through the connecting plate and is connected with a nut, and the nut is connected with the bottom end of the connecting plate, the shell is connected internally with two arc-shaped plates, and the surface of the arc plate is fixedly connected with a plurality of support rods. In the utility model, the movable connection is between the ball bearing connected through the shell surface and the connecting rod,  when the shell is in contact with the ground, it can be moved by the rotation of the ball to facilitate the movement of the shell, so as to prevent the shell and its indirectly connected body from being stuck on the ground, resulting in its inability to be taken out and affecting its overhaul or maintenance.