一种单通道燃气阀
By designing a single-channel gas valve with a limiting structure, the problem of valve core displacement under high-pressure gas was solved, enabling the gas valve to operate normally under high-pressure gas and ensuring the safety and reliability of the gas valve.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 吕成群
- Filing Date
- 2025-07-30
- Publication Date
- 2026-07-17
AI Technical Summary
The valve core of existing gas valves is prone to displacement under high-pressure gas, causing the gas valve to malfunction.
Design a single-channel gas valve with a movable valve component using a limit structure to ensure that it does not accidentally shift under high-pressure gas. The valve core drives the movable valve component to rotate, controlling the opening and closing of the gas inlet and outlet channels.
The design of the movable valve component with a limiting structure under high pressure ensures that no accidental displacement occurs. This solves the problems of existing technologies, demonstrates the effectiveness of the technical means, and ensures the normal operation of the gas valve under high pressure.
Smart Images
Figure CN224516005U_ABST
Abstract
Claims
1. A single-channel gas valve comprising a valve body (1) provided with an air inlet portion (11) and an air outlet portion (12), and a switching cavity (13) provided in the valve body (1) at a position corresponding to the air inlet portion (11) and the air outlet portion (12), characterized in that, The transition cavity (13) is provided with an air inlet (131) and an air outlet (132) respectively between the air inlet (11) and the air outlet (12). The transition cavity (13) is provided with a movable valve (2). The movable valve (2) is provided with a normally open hole (21) and a switching hole (22). The normally open hole (21) and the switching hole (22) are connected through the interior of the movable valve (2). A limiting structure is provided between the transition cavity (13) and the movable valve (2) to limit the axial movement of the movable valve (2) along the air inlet (131). The normally open hole (21) and the air inlet (131) are aligned axially. The outer side of the movable valve (2) is tightly fitted with the air outlet (132). The movable valve (2) is connected to a valve core (3). The valve core (3) can drive the movable valve (2) to rotate around the central axis of the normally open hole (21) so that the switching hole (22) is aligned with or offset from the air outlet (132). Alternatively, the normally open hole (21) and the air outlet (132) are aligned axially, the outer side of the movable valve (2) is tightly fitted with the air inlet (131), and the valve core (3) drives the movable valve (2) to rotate around the central axis of the normally open hole (21) so that the switching hole (22) is aligned with or offset from the air inlet (131).
2. The single-pass gas valve of claim 1, wherein: The movable valve (2) is spherical, and the shape of the transition cavity (13) matches the shape of the movable valve ball. The movable valve (2) is connected and fitted in the transition cavity (13) to form a limiting structure.
3. The single-pass gas valve of claim 2, wherein: The normally open hole (21) and the air inlet (131) are aligned axially. A sealing gasket (41) is provided between the outer side of the movable valve (2) and the air outlet (132). The sealing gasket (41) is tightly fitted with the movable valve (2) and the air outlet (132) respectively.
4. The single-pass gas valve of claim 2, wherein: The valve core (3) is located on the side of the movable valve (2) facing away from the normally open hole (21). The valve core (3) is provided with a number of connecting feet (31) at one end near the movable valve (2). The connecting feet (31) are distributed circumferentially. The movable valve (2) is provided with connecting recesses (23) corresponding to the connecting feet (31). The connecting feet (31) and the connecting recesses (23) are inserted and matched. The valve core (3) drives the movable valve (2) to rotate around the central axis of the normally open hole (21) by its own rotation.
5. The single-pass gas valve of claim 2, wherein: The air inlet (131) is connected to a solenoid valve (5) that can control its opening or closing. A push rod (6) is movably connected to the inner side of the valve core (3). The movable valve (2) is provided with a hollow groove (24) corresponding to the push rod (6). The normally open hole (21) is located on the lower side of the hollow groove (24). The push rod (6) can pass through the hollow groove (24) from top to bottom, penetrate the movable valve (2) and the air inlet (131), and abut against the solenoid valve (5) to open the air inlet (131).
6. The single-pass gas valve of claim 5, wherein: A sealing ring (42) is provided between the outer side of the push rod (6) and the valve core (3). The sealing ring (42) is tightly fitted with the valve core (3), and the push rod (6) can slide against the sealing ring (42) and fit tightly with each other.
7. The single-pass gas valve of claim 5, wherein: The upper end of the ejector rod (6) is connected to a valve rotating shaft (7). The upper end of the valve rotating shaft (7) extends outward in the direction of the outside of the valve body (1). The lower end of the valve rotating shaft (7) is provided with a shaft connecting portion (71). The shaft connecting portion (71) is in the shape of a flat block. The shaft connecting portion (71) is provided with a connecting notch (711) corresponding to the ejector rod (6). The valve core (3) is provided with a connecting groove (32) corresponding to the shaft connecting portion (71). The valve rotating shaft (7) can push the ejector rod (6) downward through the connecting notch (711). The valve rotating shaft (7) can带动 the valve core (3) to make a self-rotating movement by the cooperation of the shaft connecting portion (71) and the connecting groove (32).
8. The single-pass gas valve of claim 7, wherein: The ejector rod (6) and / or the valve rotating shaft (7) is connected with a return spring (8) for resetting the ejector rod (6) or the valve rotating shaft (7) upward.
9. The single-pass gas valve of claim 7, wherein: The valve body (1) is connected with a piezoelectric component (9) that can generate voltage when the valve rotating shaft (7) is pressed downward. The piezoelectric component (9) is electrically connected to a spark plug.
10. A single-pass gas valve according to any one of claims 1-9, characterized in that: The air inlet portion (11) and the air outlet portion (12) are respectively arranged on the front and back sides of the valve body (1). One side of the valve body (1) corresponding to the air outlet hole (132) is provided with an external connection portion (14). The inner side of the external connection portion (14) is provided with an air delivery channel (141) with continuous turning. The air outlet portion (12) is communicated with the air outlet hole (132) through the air delivery channel (141).