CN2851737Y - Gas valve assembly of water heater - Google Patents
Gas valve assembly of water heater Download PDFInfo
- Publication number
- CN2851737Y CN2851737Y CN 200520035585 CN200520035585U CN2851737Y CN 2851737 Y CN2851737 Y CN 2851737Y CN 200520035585 CN200520035585 CN 200520035585 CN 200520035585 U CN200520035585 U CN 200520035585U CN 2851737 Y CN2851737 Y CN 2851737Y
- Authority
- CN
- China
- Prior art keywords
- valve
- gas
- air valve
- valve plug
- valve body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Feeding And Controlling Fuel (AREA)
- Lift Valve (AREA)
Abstract
The utility model discloses a gas valve assembly for a water heater. One end of the gas valve body (1) is provided with a gas regulating rod (3), and the other end of the gas valve body (1) is provided with a gas inlet (a); the side surface of the gas valve body (1) is provided with a differential pressure valve (2), and a valve plug is arranged in the gas valve body (1); the lower end of the valve plug (4) contacts a push rod (5), and the upper end of the push rod (5) contacts a top cover (7) of a gas valve by the valve plug (4) and a spring (6);. an end head (b) at the lower end of the valve plug (4) is composed of a section of cylindrical surface (c) and two sections of conical surfaces (d, e), and the total length of the cylindrical surface and the two sections of conical surfaces at the end is five to six millimetres. In the utility model, because the length of effective working part of the valve plug is five to six millimeters, and the shape of the working part is composed of the section of cylindrical surface and the two sections of conical surfaces, the gas supply quantity of the valve can be changed along with the displacement valve plug by the push of the push rod of the gas valve, and the gas flow quantity is a variable quantity having a definite slope (the increase is from small quantity to large quantity).
Description
Technical field
The utility model relates to water heater, especially a kind of water heater air valve assembly.
Background technique
At present, the effective active length of valve plug in the used water heater air valve of the quick formula water heater of the combustion gas assembly is shorter, and its effect can only be played as the valve of combustion gas switching and use; Has certain slope variation gas flow and can not provide.
Summary of the invention
The purpose of this utility model provides a kind of water heater air valve assembly that the gas flow of certain slope variable can be provided.
In order to achieve the above object, the utility model adopts following technological scheme: a kind of water heater air valve assembly, comprise air valve body, one end of air valve body is provided with the combustion gas adjustable lever, the other end of air valve body has suction port, side at air valve body is equipped with pressure difference valve, valve plug is installed in air valve body, the lower end of valve plug contacts with push rod, the upper end of push rod contacts with the air valve top cover by valve plug, spring, the termination, lower end of valve plug is that one section cylndrical surface and two sections conical surfaces constitute, and the total length of this end cylndrical surface and two sections conical surfaces is 5-6mm.
This programme is because effective working portion of valve plug has the 5-6 millimeters long, and working portion be shaped as one section cylndrical surface and two sections conical surfaces are formed; Therefore, the gas supply amount of this valve can promote the displacement of valve plug along with the air valve push rod, and gas flow is a variable (becoming big gradually by little) with certain slope.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the outline drawing of valve plug 4 in the utility model.
Embodiment
The structure of the utility model water heater air valve assembly is seen Fig. 1, shown in Figure 2: an end of air valve body 1 is provided with combustion gas adjustable lever 3, the other end of air valve body 1 has suction port a, in the side of air valve body 1 pressure difference valve 2 is installed, valve plug 4 is installed in air valve body 1, the lower end of valve plug 4 contacts with push rod 5, the upper end of push rod 5 contacts with air valve top cover 7 by valve plug 4, spring 6, termination, the lower end b of valve plug 4 is that one section cylndrical surface c and two sections conical surface d, e constitute, and the total length of this end cylndrical surface and two sections conical surfaces is 5-6mm.8 expression set screws, 9 expression sealing gaskets.
Working principle of the present utility model: when original state, valve plug 4 is closed the valve port of air valve body under the active force of spring 6; When starting working, at first pressure difference valve 2 is opened, and connects gas circuit; Under the effect of push rod, air valve push rod 5 upwards promotes valve plug 4 and opens air valve gradually in the water valve assembly; Because effective working portion of valve plug 4 has the 5-6 millimeters long, and working portion be shaped as one section cylndrical surface and two sections conical surfaces are formed; Therefore, the gas supply amount of this valve can promote the displacement of valve plug along with the air valve push rod, and gas flow is a variable (becoming big gradually by little) with certain slope.When preparing power cut-off, under the working pressure effect of air valve body spring, spring promotes valve plug and closes gas check valve (gas flow is by diminishing greatly gradually) gradually, and gas flow is the variable with certain slope equally.Therefore, this water heater air valve assembly has the gas flow that certain slope variable is provided, and is mainly used in the quick formula water heater of combustion gas.
Claims (1)
1, a kind of water heater air valve assembly, comprise air valve body (1), one end of air valve body (1) is provided with combustion gas adjustable lever (3), the other end of air valve body (1) has suction port (a), in the side of air valve body (1) pressure difference valve (2) is installed, valve plug (4) is installed in air valve body (1), the lower end of valve plug (4) contacts with push rod (5), the upper end of push rod (5) is by valve plug (4), spring (6) contacts with air valve top cover (7), it is characterized in that: the termination, lower end (b) of valve plug (4) is one section cylndrical surface (c) and two sections conical surface (d, e) constitute, the total length of this end cylndrical surface and two sections conical surfaces is 5-6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520035585 CN2851737Y (en) | 2005-09-27 | 2005-09-27 | Gas valve assembly of water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520035585 CN2851737Y (en) | 2005-09-27 | 2005-09-27 | Gas valve assembly of water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2851737Y true CN2851737Y (en) | 2006-12-27 |
Family
ID=37585694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520035585 Expired - Fee Related CN2851737Y (en) | 2005-09-27 | 2005-09-27 | Gas valve assembly of water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2851737Y (en) |
-
2005
- 2005-09-27 CN CN 200520035585 patent/CN2851737Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061227 Termination date: 20100927 |