Air flow through control valve
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- 阜宁优越机械有限公司
- Publication Date
- 2017-01-04
- Estimated Expiration
- Not applicable · inactive patent
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Abstract
Description
Technical field
[0001] The invention relates to an airflow penetrating control valve of a pneumatic diaphragm pump. Background technique
[0002] Through searching, the applicant found a pneumatic diaphragm pump (patent number: 2012101329572) applied by the applicant Anhui Lechang Pneumatic Fluid Equipment Technology Co., Ltd., which discloses a product similar to the oxygenator of the present invention, which uses air source to generate The air pressure is used as power to drive the left and right reciprocating movement of the diaphragm; it sleeves the spool shaft (equivalent to the control shaft of the present invention) in the central spool. Both ends of the central spool are provided with step cavities, and the end spools The inner end surface is provided with a secondary annular step; the structure of the center valve core and the end valve core is complicated, which increases the production cost. Summary of the invention
[0003] The technical problem to be solved by the pr...