Quick-inserting ball valve

Abstract

The invention discloses a quick-inserting ball valve which comprises a valve body and a valve element, the valve element is arranged in the valve body and rotationally connected with the valve body, a valve rod is connected to the upper end of the valve element, one end of the valve rod is fixedly connected with the valve element, and the other end of the valve rod penetrates through the valve body and is fixedly connected with a handle. The connecting end of the valve body is in threaded connection with a lock nut, and a circle of conical surface is arranged on the inner wall of the lock nut. A clamping sleeve is of a tubular structure, a plurality of T-shaped openings are evenly distributed in the circumference of the clamping sleeve, the circumferential face of the clamping sleeve is divided into a plurality of arc-shaped clamping faces through the T-shaped openings, an arc-shaped clamping strip is arranged on the inner wall of each arc-shaped clamping face, and a limiting strip is arranged on the outer wall of each arc-shaped clamping face. The arc-shaped clamping faces of the clamping sleeve are inserted into the lock nut, and the limiting strips on the outer walls of the arc-shaped clamping faces abut against the conical face in the lock nut. The conical surface on the inner side of the lock nut is matched with the clamping sleeve to adjust the inner diameter of the clamping sleeve, the inner diameter of the clamping sleeve is changed when a pipeline is inserted and pulled out, the pipeline mounting and dismounting operation is simplified, and the mounting efficiency of the ball valve is improved.

Description

technical field [0001] The invention belongs to the technical field of valves, in particular to a quick-insert ball valve. Background technique [0002] Valves are pipeline accessories used to open and close pipelines, control flow direction, adjust and control the parameters (temperature, pressure and flow) of the conveying medium. There are many types of valves. The commonly used type is ball valve. The opening and closing part (ball) in the ball valve is driven by the valve stem and rotates around the axis of the ball valve to control the on-off in the pipeline. Generally, there are threaded joints at both ends of the valve. After the pipeline is inserted into the joint, it is necessary to transfer the threaded joint and make a rigid connection with the valve to seal and fix the pipeline. When disassembling the pipeline, the threaded joint needs to be Only by unscrewing can the pipeline be removed, and for tightness, threaded joints often require special tools to tighten...

AI Technical Summary

Problems solved by technology

Generally, there are threaded joints at both ends of the valve. After the pipeline is inserted into the joint, it is necessary to transfer the threaded joint and make a rigid connection with the valve to seal and fix the pipeline. When disassembling the pipeline, the threaded joint needs to be Only by unscrewing can the pipeline be removed, and for tightness, threaded joints often require special tools to tighten and unscrew, which makes it very inconvenient to disassemble the pipeline

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