Half dovetail annular groove structure for securing a sealing ring of a roots vacuum pump
By using a semi-dovetail annular groove structure to fix the O-ring in the Roots vacuum pump, the problem of O-rings easily falling off on vertical or downward surfaces is solved, thus achieving the stability and reliability of the sealing ring and improving installation efficiency and sealing effect.
CN224532978UActive Publication Date: 2026-07-21ELIVAC CO LTD +2
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ELIVAC CO LTD
- Filing Date
- 2025-08-22
- Publication Date
- 2026-07-21
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Figure CN224532978U_ABST
Abstract
A half dovetail ring groove structure for fixing a sealing ring of a Roots vacuum pump, which is used for the joint between each component of a Roots vacuum pump, and the mutually jointed surfaces form corresponding joint surfaces respectively; a sealing ring groove is formed on one of the mutually jointed surfaces for placing a sealing ring; thus when the two components are mutually jointed, the sealing effect is achieved through the sealing ring groove and the sealing ring; wherein the sealing ring groove is a half dovetail ring groove; the transverse section of the sealing ring groove is a half dovetail ring.
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