Double-ball hard sealing ball valve

Abstract

The invention discloses a double-ball hard sealing ball valve. The double-ball hard sealing ball valve comprises a left ball valve body, a connecting rod, a right ball valve body and a movable valve body. A through hole is formed in the bottom of the left ball valve body, the inner wall of the left side of the left ball valve body is in bearing connection with a metal sleeve, a filter screen is clamped to the outer side of the connecting rod, a rubber rod is fixed to the right side of the connecting rod, and a collecting frame is clamped to the inner side of the bottom of the left ball valve body. A sealing ring is bonded to the right side of the left ball valve body, a spring is arranged in the movable valve body, a fixing rod is welded to the right end of the spring, threaded rods are inthreaded connection with the interior of the outer side of the right ball valve body, and bevel gears are fixed to the right sides of the threaded rods. According to the double-ball hard sealing ballvalve, the collecting frame is installed, impurities brushed off through a brush can fall into the collecting frame, the collecting frame and the bottom of the inner side of the left ball valve bodyform a clamping structure, at the moment, a pull ring is buckled by a hand to pull out a plug fixed to the bottom of the collecting frame, and then the collecting frame can be washed. By means of thestructure, impurities in oil can be thoroughly removed conveniently, and the practicability is improved.

Description

technical field [0001] The invention relates to the technical field of double-ball hard-sealed ball valves, in particular to a double-ball hard-sealed ball valve. Background technique [0002] Among the various types of ball valves, there are two types that are difficult to distinguish, hard-sealed ball valves and soft-sealed ball valves. For hard-sealed ball valves, it refers to the seal between metal and metal. The sealing ball and the seat are both It is made of metal, mainly using the precision machining of the valve seat material to ensure the matching accuracy with the valve core (ball). Generally, there are stainless steel and copper. The hard seal can be high or low according to requirements, and high pressure can be achieved, thus double Ball hard-sealed ball valves play a very important role in the mechanical field; [0003] Although double-ball hard-sealed ball valves and soft-sealed ball valves are suitable, the current double-ball hard-sealed ball valves in the...

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Problems solved by technology

[0008] The object of the present invention is to provide a double-ball hard-sealed ball valve to solve the problem that the left and right sides of the double-ball hard-sealed ball valves on the market are easy to fall off during long-term use, resulting in oil spraying, which seriously affects the follow-up. work, and the double-ball hard-sealed ball valve will produce oil accumulation inside during long-term use, and it is prone to blockage. It needs to be jacked up and replaced, resulting in increased costs and wasted labor. The active valve inside the ball valve is usually designed on the left side. It is very easy to block the oil inlet hole inside the active valve during long-term use, resulting in the problem that the entire double-ball hard-sealed ball valve cannot work.

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