Forced pull rod type anti-air pump traveling valve mechanism
The utility model discloses a forced pull rod type anti-air pump traveling valve mechanism which comprises a valve body, an upper valve seat and a lower valve seat, threads are arranged on the inner walls of valve ports at the two ends of the valve body, the upper valve seat is installed at the top...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The utility model discloses a forced pull rod type anti-air pump traveling valve mechanism which comprises a valve body, an upper valve seat and a lower valve seat, threads are arranged on the inner walls of valve ports at the two ends of the valve body, the upper valve seat is installed at the top end of the valve body through the threads, and the lower valve seat is installed at the bottom end of the valve body through the threads. A plunger is movably installed in the valve body, a sealing shaft sleeve is arranged at the top end of the upper valve seat, a sucker rod is movably installed onthe upper valve body through the sealing shaft sleeve, the bottom end of the sucker rod is fixedly connected with the plunger, and a pull rod is fixedly installed in the middle of the bottom of the plunger. A moving valve ball is arranged at the bottom end of the pull rod, and a limiting table is fixedly installed at the top end of the lower valve seat. Through the arrangement of a series of structures, no matter in an up |
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