An easily adjustable anti-backflow check valve and its operating method
A check valve and anti-backflow technology, which is applied in the field of backflow check valves and anti-backflow check valves, can solve the problems of large resistance, check valves without a pressure adjustment structure, and laborious installation and operation of check valves. Achieve the effects of increasing the scope of application, convenient adjustment and operation, and avoiding leakage
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[0035] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0036] Such as Figure 1-8 As shown, an anti-backflow check valve that is easy to adjust includes a sealing valve body 10, a lifting piston 21, a support card seat 7 spliced with a snap ring 42 and a sealing shaft 8, and the outer surface of the front end of the sealing valve body 10 is fixedly installed with a rotating The connecting pipe 11, and the sealing valve body 10 is connected through the connecting pipe 1 through the rotating connecting pipe 11. The outer surfaces of b...
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