A slideway type rolling ball check valve

Abstract

A slide type rolling ball check valve, the cover is fixedly connected to the top of the water pipe through a fastening device, the fastening device includes a support column, a group of support columns is fixedly connected to the top of the water pipe in the form of a ring, and the middle part of each support column is slidably connected There is a pressure rod, the end of the pressure rod close to the cover is provided with a first slope, the upper end of the cover is provided with a second slope corresponding to the first slope, the first slope is in contact with the second slope and has the same slope, the upper side of the pressure rod A helical groove is provided, and a driving spring is helically connected in the helical groove, and one end of the driving spring is fixedly connected with a driving gear, and the driving gear is rotatably connected with the support column. The present invention drives the spring to rotate, and under the action of the spiral groove, the pressure rod moves and passes through the dislocation between the first slope and the second slope to compress the cover, and the movable parts are far away from the contact surface between the water pipe and the cover, which can effectively prevent Water seepage causes corrosion of fastening parts and affects the disassembly of the cover.

Description

technical field [0001] The invention relates to the technical field of rolling ball check valves, in particular to a slideway type rolling ball check valve. Background technique [0002] Slideway rolling ball check valve is a kind of valve, which can be used in cold water, hot water, industrial water and domestic sewage pipe network, etc. Under the action of the medium or medium pressure, it can roll up and down on the integral slideway in the valve body to open or close the valve. The existing slideway ball check valve is in a single form and does not have the function of cutting off the water flow. , so that the water cannot be cut off quickly when it flows, and it is not easy to disassemble easily when it is damaged, and it is inconvenient to clean and replace the rolling ball, which wastes water resources, manpower and time, and is not conducive to people's use. [0003] In the prior art, for example, a Chinese patent with the patent application number of 201821273587.3...

AI Technical Summary

Problems solved by technology

[0005] In order to make up for the deficiencies of the prior art, a slideway type ball check valve proposed by the present invention can solve the technical problems that the check valve in the prior art is easy to rust and inconvenient for maintenance.

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