Valve capable of being automatically switched off at overhigh flow velocity

Abstract

The invention relates to the technical field of valves, and discloses a valve capable of being automatically switched off at an overhigh flow velocity. The valve comprises a shell, a pipeline, a convex block, a pressure-bearing assembly, a valve assembly and a reset rod, wherein the top end of the shell is fixedly connected with the pipeline, the left side of the inner wall of the shell is fixedlyconnected with the pressure-bearing assembly, the right side of the inner wall of the shell is fixedly connected with the valve assembly, the bottom end of the inner wall of the shell is slidably connected with the reset rod, and the right side of the top end of the pipeline is fixedly connected with the convex block. When the flow velocity of the pipeline is too high, an arc-shaped plate moves downwards, the arc-shaped plate drives a bearing rod to move, the bearing rod drives a bearing to operate, the bearing drives a bearing sleeve to operate, the bearing sleeve drives a circular plate tooperate, and when the circular plate rotates, the circular plate drives a weight to rotate, the weight drives a connecting rod to rotate, the connecting rod drives a first rolling ball to rotate, thefirst rolling ball drives the left end of a lever to move downwards, the lever drives a second rolling ball to operate, and the second rolling ball drives a baffle to move, so that the baffle blocks the pipeline and cuts off the flow of the pipeline.

Description

technical field [0001] The invention relates to the technical field of valves, in particular to a valve that automatically closes when the flow rate is too fast. Background technique [0002] A valve is a control component in a fluid delivery system, a device used to open and close pipeline passages or adjust the medium in a pipeline. A valve is an extremely widely used mechanical device. It is widely used in industry, commerce, agriculture and residents. It is used in daily life. When the pipeline transports the medium for a long distance, the flow rate and pressure of the medium will change due to the different changes in the diameter of the pipeline, and this change is uncontrollable. For example, in the daily use of natural gas Occasionally, the flame will be too large, which is caused by a sudden increase in the flow rate inside the pipeline. Although this situation does not affect normal use, it has a great potential safety hazard. Therefore, we propose an automatic sh...

AI Technical Summary

Problems solved by technology

[0002] A valve is a control component in a fluid delivery system. It is a device used to open and close pipeline passages or adjust the medium in a pipeline. A valve is an extremely widely used mechanical device. It is used in industry, commerce, agriculture and residents It is used in daily life. When the pipeline transports the medium for a long distance, the flow rate and pressure of the medium will change due to the different changes in the diameter of the pipeline, and this change is uncontrollable. For example, in the daily use of natural gas Occasionally, the phenomenon of excessive flame will occur, which is caused by the sudden increase of the flow velocity inside the pipeline. Although this situation does not affect normal use, it has a great potential safety hazard. Therefore, we propose an automatic shut-off valve

Images