一种结构紧凑型单向节流阀
By introducing a dual protection design of connecting pipe and connector in the one-way throttle valve, as well as the use of a return spring, the leakage problem caused by the sealing surface being susceptible to fluid erosion is solved, and a one-way throttle valve design with good sealing performance and easy maintenance is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENYANG NUODEL AUTOMATION TECH CO LTD
- Filing Date
- 2025-07-22
- Publication Date
- 2026-07-17
AI Technical Summary
The sealing surface of a one-way throttle valve is easily eroded by fluid, and leaks after long-term use. It has poor sealing performance and is inconvenient to replace the sealing surface, so it cannot be used to cut off the medium.
A compact one-way throttle valve was designed, comprising a valve body, a one-way valve core, a safety component, and a throttle groove. Through the dual protection of the connecting pipe and the connector, combined with the design of the return spring, the fluid flows in one direction, and the connector and return spring can be disassembled and replaced when needed to maintain the sealing.
It effectively prevents fluid leakage, ensures sealing, extends valve body service life, facilitates the replacement of vulnerable parts, and improves the reliability of valve body use.
Smart Images
Figure CN224516047U_ABST
Abstract
Claims
1. A compact one-way throttling valve comprising: Valve body (001); Its characteristic is that it also includes: Valve chamber A (002) is located on one side of valve body (001); One-way valve core (003), wherein the one-way valve core (003) is disposed inside the valve body (001); Safety component (004) is located at the bottom of one-way valve core (003). The safety component (004) is used in conjunction with one-way valve core (003) to ensure that the fluid can only flow in one direction, prevent backflow, and enable the valve body (001) to be used safely. The safety component (004) includes a connecting pipe (401), and a connector (402) is fitted inside the bottom end of the connecting pipe (401).
2. The compact one-way restrictor valve of claim 1, wherein: The valve chamber A (002) is connected to the side of the valve chamber B (210). A throttling groove (220) is provided between the valve chamber A (002) and the valve chamber B (210). A throttling valve core (230) is slidably connected inside the throttling groove (220).
3. The compact one-way restrictor valve of claim 2, wherein: The bottom diameter of the throttle valve core (230) decreases gradually. A fixing ring (240) is fixedly connected to the outer wall of the throttle valve core (230). The outer wall of the fixing ring (240) is in contact with the inner wall of the throttle groove (220).
4. The compact one-way restrictor valve of claim 1, wherein: The one-way valve core (003) is spherical, and a return spring (310) is provided at the bottom end of the one-way valve core (003). The return spring (310) is located on the outside of the valve body (001) and inside the connector (402). The top end of the connector (402) extends into the valve body (001).
5. The compact one-way restrictor valve of claim 1, wherein: The connecting pipe (401) is detachably connected to the valve body (001) by screws. The connecting pipe (401) is internally threaded with a fixing pipe (320). The fixing pipe (320) is fixedly connected to the valve body (001). The inner wall of the fixing pipe (320) is in contact with the outer wall of the connector (402).
6. The compact one-way restrictor valve of claim 3, wherein: The bottom outer wall of the fixing ring (240) is inclined, and positioning blocks (250) are provided on both sides above the fixing ring (240). The inclination angle of the positioning blocks (250) is adapted to the inclination angle of the fixing ring (240).
7. A compact one-way restrictor valve according to claim 6, wherein: The rear ends of the two positioning blocks (250) are fixedly connected with positioning rods (251), and the rear ends of the positioning rods (251) are provided with buffer springs (252). The positioning rods (251) are slidably connected to the valve body (001).
8. The compact one-way restrictor valve of claim 7, wherein: The top end of the throttle valve core (230) is slidably connected to an adjusting ring (253), which has the same shape as the fixed ring (240).