Movable slip type fishing head for pulling plunger pump valve seat
The invention discloses a movable slip type fishing head for pulling a plunger pump valve seat. The movable slip type fishing head comprises a screw rod and a fishing head, wherein the fishing head comprises two internal thread slips and two semicircular rings, the fishing head is sleeved with a val...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention discloses a movable slip type fishing head for pulling a plunger pump valve seat. The movable slip type fishing head comprises a screw rod and a fishing head, wherein the fishing head comprises two internal thread slips and two semicircular rings, the fishing head is sleeved with a valve body, the lower end of the lead screw is connected between the two internal thread slips in an inserted mode, then the two semicircular rings are contracted inwards to fix the two internal thread slips, and the valve body is connected to the outer portions of the two internal thread slips in a sleeved mode and located below the two semicircular rings. The movable slip type fishing head for pulling the plunger pump valve seat is simple and compact in structure, good in part interchangeability, high in strength, long in service life, fast and convenient to operate, good in actual effect and fast to install.
本发明公开了一种用于柱塞泵凡尔座拔取活动卡瓦式打捞头,包括丝杆、打捞头,所述打捞头包括两个内丝卡瓦与两个半圆环,所述打捞头的外部套接有凡尔体;所述丝杆的下端插接在所述两个内丝卡瓦之间,然后,将两个半圆环向内收缩固定两 |
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