A rubber liner for a valve cage of a sucker rod pump
By using a rubber-lined valve cover in the oil pump, the problem of easy damage to the surface of the floating valve ball is solved, thus protecting the floating valve ball and improving the efficiency of the oil pump.
CN224315148UActive Publication Date: 2026-06-02TIELING DONGSHENG PETROLEUM MASCH CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIELING DONGSHENG PETROLEUM MASCH CO LTD
- Filing Date
- 2025-06-26
- Publication Date
- 2026-06-02
AI Technical Summary
Technical Problem
The metal valve cover of the existing oil pump makes the surface of the traveling valve ball easily damaged by impact, affecting the sealing effect and reducing working efficiency.
Method used
The valve cover is lined with rubber, so that the moving valve ball only contacts the rubber during its up and down movement, avoiding direct contact with the metal ball cage. The rubber is designed with different inner diameters at the top and bottom to enhance protection.
Benefits of technology
This improves the protective effect of the traveling valve ball, keeps it in good condition, extends the service life of the oil pump, and increases its working efficiency.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN224315148U_ABST
Abstract
The utility model discloses a kind of rubber inner lining valve covers of oil-well pump, it is related to valve cover technical field, solve the technical problem that the ball cage of existing ball cage is metal piece, movable valve ball reciprocates up and down in ball cage, repeatedly impact, movable valve ball surface is easily injured, seriously affect sealing effect, to greatly reduce the working efficiency of oil-well pump, including valve cover, the ball cage is equipped in the valve cover, the ball cage is inlayed with rubber, movable valve ball is movably installed in the valve cover, movable valve ball is between ball cage and located in rubber, valve seat is equipped in the valve cover and located below movable valve ball, the utility model is inlayed rubber on the metal ball cage in the valve cover, movable valve ball can only contact rubber in reciprocating motion up and down, avoid direct contact with ball cage, so movable valve ball can not be damaged, can keep good state for a long time, greatly improve the working efficiency and service life of oil-well pump.
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