一种具有新型阀片的保压阀
By designing irregularly shaped valve plates and using a boss anti-rotation structure, the structural strength, adjustment flexibility, and sealing performance issues of existing pressure-holding valves have been resolved. This has enabled stable operation of the valve plates and asymmetric pressure control under high-frequency impacts and high pressure differentials, thereby improving the safety and reliability of the system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGCHUN CHINAUST AUTOMOBILE PARTS
- Filing Date
- 2025-08-13
- Publication Date
- 2026-07-17
AI Technical Summary
Existing pressure-holding valves have limited valve plate structure strength and deformation resistance, inflexible opening pressure regulation, and easily degraded sealing performance, making it difficult to meet the requirements of high-frequency impact, high pressure difference, and asymmetric pressure control.
The valve adopts an irregularly shaped valve plate design, combined with a boss and groove structure. By adjusting the effective pressure-bearing area on the inner and outer sides of the valve plate, the opening pressure can be independently controlled. The anti-rotation structure of the boss and the rib of the shell improve the stress distribution on the sealing surface.
It improves the mechanical properties and durability of the valve plate, simplifies pressure regulation, enhances sealing performance and system stability, and meets the functional and safety requirements under special working conditions.
Smart Images
Figure CN224515520U_ABST
Abstract
Claims
1. A pressure retaining valve having a new type of valve disc, characterized in that, The pressure-holding valve includes: A threaded body (1) is provided, and a valve core (2) is installed in the cavity of the threaded body (1). The liner (3) is installed in the cavity of the threaded body (1) with a gap; Spring (4), the spring (4) is located inside the liner (3) and sleeved outside the valve core (2); The irregular valve plate (5) is located below the liner (3). The irregular valve plate (5) is interference-fitted on the outside of the valve core (2). The outermost part of the irregular valve plate (5) is provided with a boss (501). It also includes: a housing (6), which is riveted to the threaded body (1).
2. The pressure retaining valve having a new type of valve plate according to claim 1, characterized by, The threaded body (1) includes: Air intake and exhaust passage (101); Vent hole (102) located on the lower right side of the threaded body (1); It also includes two anti-rotation structures (103) with bosses installed on the outer wall of the threaded body (1).
3. The pressure retaining valve having a new type of valve plate according to claim 1, characterized by, The valve core (2) is provided with an air intake and exhaust channel (201) in the middle.
4. The pressure retaining valve having a new type of valve plate according to claim 2, characterized by The housing (6) includes: Two housing channels (601) are distributed on the left and right sides, and a pressure holding valve outer cavity (602) is provided above the housing channels (601). The pressure holding valve cavity (603) is located in the middle of the upper side of the two housing channels (601). Valve plate groove (604) located above the outer cavity (602) of the pressure holding valve; Anti-rotation groove (605) that mates with the two aforementioned anti-rotation structures (103); It also includes: the shell ribs (606) on the left and right sides of the upper end of the inner cavity (603) of the pressure holding valve.
5. The pressure retaining valve having a new type of valve plate according to claim 1, characterized by, The upper part of the threaded body (1) is fitted with a sealing ring (7).
6. The pressure retaining valve having a new type of valve plate according to claim 1, characterized by, The irregular valve plate (5) can be replaced with a circular valve plate (8). When the circular valve plate (8) is used, the housing (6) does not have a valve plate groove (604).