Anti-leakage straight pipe flange ball valve

Abstract

The invention discloses an anti-leakage straight pipe flange ball valve. The anti-leakage straight pipe flange ball valve comprises a valve body, wherein the two ends of the valve body are provided with an inflow port and an outflow port respectively; a flow passage is between the inflow port and the outflow port in a communicating mode; a valve cavity is arranged in the middle of the flow passage; a valve ball for opening and closing is arranged in the valve cavity; a valve rod is integrally arranged at the top end of the valve ball; the valve rod is fixedly connected with a connecting body;and the connecting body is detachably connected with a handle. According to the anti-leakage straight pipe flange ball valve, liquid in the flow passage can circulate or be blocked through the valve ball, and meanwhile, a leakage-proof effect can be achieved; the dismounting of the valve rod and the handle can be realized through the arrangement of the connecting body, and the handle is convenientto replace; and due to the arrangement of a sealing gasket, the sealing performance is improved, and the leakage prevention effect is further improved.

Description

technical field [0001] The invention relates to the technical field of ball valves, in particular to an anti-leakage straight pipe flanged ball valve. Background technique [0002] The ball valve is a valve with a ball as the opening and closing part. The opening and closing part with a through hole is driven by the valve stem and rotates around the axis of the ball valve to realize the adjustment and control of the fluid. In my country, ball valves are widely used in petroleum refining, long-distance pipelines, chemical industry, papermaking, pharmaceuticals, water conservancy, electric power, municipal, steel and other industries, and occupy a pivotal position in the national economy. It has the action of rotating 90 degrees. The cock body is a sphere with a circular through hole or channel passing through its axis. [0003] Although the existing ball valve can prevent liquid leakage, it needs to turn the handle frequently to control the opening and closing of the valve, ...

AI Technical Summary

Problems solved by technology

[0004] Chinese patent document announcement number: CN209245440U discloses a leak-proof straight pipe flanged ball valve, including a limit collar, a gasket, a guide rod, a wedge one, a wedge two, a cavity, a support rod, a receiving groove, and a positioning pin And the positioning groove, the limit collar is set on the upper side of the valve sleeve, the sealing gasket is installed in the storage groove, the guide rod is fixed in the middle of the left end face of the sealing gasket, and the left end of the guide rod extends into the cavity, so The first wedge is welded on the left end surface of the guide rod, the second wedge is welded on the upper end surface of the support rod, the cavity is set on the left side of the limit collar, and the support rod is installed on the left end surface of the valve sleeve side, the receiving groove is set on the left side of the inner peripheral surface of the limit collar, the positioning pin is welded on the front side of the lower end of the limit collar, and the positioning groove is set on the front side of the upper end of the valve sleeve; the document given Integral handle and valve stem, no disassembly effect, thus increasing replacement cost

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