Features of special tools for railway brake valve assembly

A special tool for assembling a railway brake valve, characterized in that it comprises a vertically arranged valve barrel and a top rod matched with the valve barrel. The valve barrel is a cylinder and the inner wall of the cylinder is provided with a sandwich core. The groove is matched with the outer edge of the valve, the number of valve barrels is two, and the top ends of the two valve barrels are jointly connected to a support seat, and the top surface of the support seat is provided with two through holes corresponding to the centers of the two valve barrels one-to-one , The number of the ejector rods is two, and the lower end of the ejector rod is inserted into the corresponding valve cylinder through the through hole. The upper ends of the two ejector rods are provided with a connecting plate. The length of each ejector rod is different, and the ejector rod extending into the longer-length valve barrel is longer than the other ejector rod. 2. The special tool for railway brake valve assembly according to claim 1, wherein the maximum capacity of the two valve barrels is 10 sandwich valves arranged vertically. 3. The special tool for assembling railway brake valves according to claim 1, characterized in that: the lower end of the ejector rod is provided with a disc that cooperates with the inner wall of the valve barrel. 4. The special tool for railway brake valve assembly according to claim 1, characterized in that: the two sides of the connecting plate are connected with two vertical support rods by bolt pairs, and the upper section of the vertical support rod is a screw rod. A circular support piece is provided to the lower end of the support rod. 5. The special tool for assembling railway brake valves according to claim 1, wherein a lifting ring is provided on the outer edge of the upper surface of the support seat. 6. The special tool for railway brake valve assembly according to claim 1, wherein the outer circumference of one of the ejector rods is provided with a scale line arranged from bottom to top. 7. The special tool for railway brake valve assembly according to claim 1, characterized in that: a transition mark block is provided at the upper end of one of the ejector rods and the connecting plate.

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