一种不易偏移的球阀及阀座
By introducing a pressure relief buffer cylinder and piston structure into the ball valve, the water pressure is regulated and the sealing performance is enhanced, thus solving the problem of ball valve leakage under high water pressure and achieving a high-precision sealing effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO HAISHU JIACHENG HARDWARE TOOLS CO LTD
- Filing Date
- 2025-07-22
- Publication Date
- 2026-07-17
AI Technical Summary
Existing ball valves are difficult to seal completely under high water pressure, resulting in water leakage and failing to meet the requirements of high-precision applications.
A ball valve structure including an opening and closing ball, a pressure relief buffer cylinder, and a pressure component was designed. By setting a pressure relief buffer cylinder and a piston on the water inlet pipe, the water pressure is regulated by the compression action of the spring, and the sealing performance between the opening and closing ball and the sealing valve seat is enhanced by the pressure component.
It effectively reduces peak water pressure, enhances the sealing performance between the opening/closing ball and the sealing seat, prevents water leakage, and meets the requirements for high-precision use.
Smart Images
Figure CN224516003U_ABST
Abstract
Claims
1. A ball valve and valve seat that is not easy to deviate, comprising an opening and closing ball body (2); characterized in that: It also includes a pressure relief buffer cylinder (5) and a pressure assembly. An installation valve body (1) is provided on the outside of the opening and closing ball (2). The opening and closing ball (2) is rotatably connected to the installation valve body (1). A sealing valve seat (3) is provided at the connection between the installation valve body (1) and the opening and closing ball (2). A pressure assembly is provided above the opening and closing ball (2). An inlet pipe (101) for water inlet is provided on one side of the installation valve body (1). A drain pipe (102) for water outlet is provided on the side of the installation valve body (1) away from the inlet pipe (101). A pressure relief buffer cylinder (5) is provided above the inlet pipe (101). A piston (501) is provided inside the pressure relief buffer cylinder (5). The piston (501) is slidably sealed to the inner wall of the pressure relief buffer cylinder (5). A first spring (502) is provided above the piston (501).
2. A ball valve and valve seat according to claim 1, wherein: The opening and closing ball (2) is hemispherical, and the sealing valve seat (3) is set obliquely upward and closely attached to the flow port of the opening and closing ball (2). The sealing valve seat (3) is made of elastic waterproof material.
3. A ball valve and valve seat which is not easily deflected according to claim 1, characterized in that: The pressure assembly includes a cam (201) and a push rod (103). The cam (201) is located above the opening and closing ball (2). A guide groove (202) is provided on the side wall of the cam (201). A push rod (103) is provided at the connection between the valve body (1) and the cam (201). A drive turntable (4) is located above the cam (201).
4. A ball valve and valve seat according to claim 3, wherein: The guide groove (202) is at an angle of 90 degrees in the plane perpendicular to the axis of the opening and closing ball (2), and the guide groove (202) extends a certain distance in the direction of the axis of the opening and closing ball (2).
5. A ball valve and valve seat according to claim 1, wherein: A movable block (504) is provided on the inner side of the piston (501). The diameter of the movable block (504) is the same as the inner diameter of the piston (501), and the diameter of the pressure relief pipe (503) is the same as the inner diameter of the piston (501).
6. A ball valve and valve seat which is not easily misaligned according to claim 5, characterized in that: The bottom of the movable block (504) is provided with a limit plate (505), and guide rods (507) are provided on both sides of the limit plate (505). The guide rods (507) are slidably connected to the piston (501), and a second spring (506) is provided on the outside of the guide rods (507).
7. A ball valve and valve seat according to claim 1, wherein: The pressure relief pipe (503) has a water flow groove (508) on the side wall of the part located inside the pressure relief buffer cylinder (5).