CN203146896U - Gas valve core applicable to two different gas sources - Google Patents
Gas valve core applicable to two different gas sources Download PDFInfo
- Publication number
- CN203146896U CN203146896U CN 201320089742 CN201320089742U CN203146896U CN 203146896 U CN203146896 U CN 203146896U CN 201320089742 CN201320089742 CN 201320089742 CN 201320089742 U CN201320089742 U CN 201320089742U CN 203146896 U CN203146896 U CN 203146896U
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- hole
- valve core
- threaded connection
- small fire
- gas valve
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Abstract
The utility model relates to a gas valve core applicable to two different gas sources. The gas valve core comprises a base body, wherein a ventilating cavity with a downward opening is formed in the lower part of the base body, a connecting cavity with an upward opening is formed in the upper part of the base body, and a big flame hole and a first small flame hole which are communicated with the ventilating cavity are formed in the sidewall of the base body. The gas valve core is characterized in that the ventilating cavity and the connecting cavity are connected through a threaded connection hole formed along the axial direction of the base body, a second small flame hole communicated with the threaded connection hole is formed in the sidewall of the base body and is located above the first small flame hole, an adjusting screw is connected into the threaded connection hole in a threaded manner, and whether the second small flame hole is communicated with the ventilating cavity or not can be controlled by the up-and-down movement of the adjusting screw in the threaded connection hole. According to the gas valve core provided by the utility model, the gas valve core can be adaptable to two different gas sources by only turning the adjusting screw, and the first small flame hole and the second small flame hole are located in the same vertical plane, so that the gas valve core has only two tap positions like the traditional gas valve core, a complicated limiting structure is not required to be arranged, and the structure of a gas valve using the valve core can be simplified.
Description
Technical field
The utility model relates to a kind of fuel gas valve core, relates in particular to the fuel gas plug valve that can adjust different blast tubes according to different sources of the gas.
Background technique
Gas valve in the various combustion gas tools is the manual operating valve of control source of the gas supply.Common gas valve generally comprises the valve body that has gas-entered passageway and outlet passageway, be provided with revolvable spool in the valve body, spool top has spring chamber, the spool bottom is provided with venting cavity, be equipped with the valve rod that can drive the spool rotation on the valve body, the lower end of valve rod holds and makes valve rod keep moving and disengaging is connected the spring of trend with spool, and this spring is positioned at the spring chamber on the spool, has on the venting cavity sidewall of spool in order to be communicated with big fire hole and the small fire hole of gas-entered passageway and outlet passageway.
During use, the outlet passageway end of valve body is connected use with nozzle, the user can be by being arranged on knob on the operation panel and operating valve lever, generally press knob earlier and rotate counterclockwise, can drive spool and rotate counterclockwise, the gas-entered passageway in big fire hole and the valve body on the spool is connected, at this moment, source of the gas can pass through gas-entered passageway, big fire hole, venting cavity and outlet passageway and from the nozzle ejection, use for the combustion gas tool.When turning the intensity of a fire down, the user continues to rotate counterclockwise knob, and the gas-entered passageway in small fire hole and the valve body on the spool is connected, and reduces the circulation passage of source of the gas and reaches the purpose that reduces the intensity of a fire.If the user wants the little intensity of a fire to remap to the maximum intensity of a fire, also, rotary valve key, spool is communicated with gas-entered passageway in the valve body from its small fire hole be converted into its big fire hole and communicate with gas-entered passageway in the valve body.
Nowadays, various energy resources obtains development and use, has changed the single phenomenon of original energy, and as multiple source of the gas, the common application in the combustion gas tool more and more is extensive as liquefied petroleum gas (LPG), rock gas, dimethyl ether etc.Common and deposit and when needing to exchange, its calorific value of different combustion gas has nothing in common with each other when different types of source of the gas, the size because of small fire hole in the gas valve is certain again, so at the high combustion gas of calorific value, the small fire hole of gas valve is less, and the low combustion gas of calorific value, the small fire hole of gas valve is bigger.In energy starved epoch nowadays; often having the thing that the source of the gas of whole residential belt need change in many countries takes place; because the difference of source of the gas can cause the gas flow flux difference that the combustion gas tool is required; thereby an original general gas stopcock at a kind of combustion gas of installing just needs to change; and for above-mentioned technological scheme; just need to change whole fuel gas plug valve and whole kitchen range; this has just greatly increased the change cost; be unfavorable for applying of new source of the gas, be unfavorable for that also the enforcement that source of the gas more changes jobs carries out.
Be that the Chinese utility model patent " a kind of fuel gas plug valve " of ZL200920191607.7 (notification number is CN201487275U) has disclosed a kind of gas valve that is suitable for two kinds of different sources of the gas as a patent No., but it needs three rotation switching positions could realize regulating, so it must could guarantee to switch accurately by rotary position limiting structure between complicated spool and the valve body, processing cost height, and inconvenient operation.
Summary of the invention
Technical problem to be solved in the utility model is to provide two of a kind of need to rotate the fuel gas valve core that is suitable for two kinds of different sources of the gas of switching position at above-mentioned prior art present situation, and it has advantage simple in structure, that switching is easy to adjust, cost is low.
The utility model solves the problems of the technologies described above the technological scheme that adopts: a kind of fuel gas valve core that is suitable for two kinds of different sources of the gas, comprise matrix, the bottom of matrix is provided with downward opening venting cavity, the top of matrix is provided with the connection chamber that opening connects for valve rod up, has the big fire hole and first small fire hole that are communicated with venting cavity on the sidewall of matrix; It is characterized in that: connect by the threaded connection hole along base shaft to setting between described venting cavity and the connection chamber, have second small fire hole that communicates with described threaded connection hole on the sidewall of described matrix, this second small fire hole is positioned at the top of first small fire hole, described threaded connection hole internal thread is connected with adjusting screw, and adjusting screw moving up and down in threaded connection hole can be controlled described second small fire hole and whether be communicated with venting cavity.
The top of above-mentioned threaded connection hole is tapped hole portion, the bottom of threaded connection hole is unthreaded hole portion, described second small fire hole is communicated with unthreaded hole portion, described adjusting screw has head, annular slot part, screw section and polished rod portion from top to bottom successively, sheathed inner circle wall with connection chamber forms the hermetic seal seal ring on the described annular slot part, described screw section is threaded with tapped hole portion, and described polished rod portion can form shutoff with the unthreaded hole portion of threaded connection hole.Seal ring is set can guarantees that combustion gas can not enter connection chamber, guarantee to use safety, cooperating of unthreaded hole portion and polished rod portion in addition, can allow the better shutoff main thread attachment hole that moves down of adjusting screw, guarantee that second small fire hole is not communicated with venting cavity.
As improvement, be cone match between the periphery of above-mentioned polished rod portion and the unthreaded hole portion inner circle wall of threaded connection hole.
Above-mentioned first small fire hole and second small fire hole are shoulder hole.Because the outside of small fire hole is macropore portion, area be convenient to greatly with valve body on suction port overlap, and the aperture portion of shoulder hole can guarantee to have only a small amount of combustion gas by small fire hole, effectively plays and regulates little fire action.
Have the slot that two axial settings and opening insert for valve rod on the side face of above-mentioned connection chamber up.
The outer circumferential face of above-mentioned venting cavity is the conical surface.Make to form better sealing between the periphery wall of spool and the valve interior wall, prevent that the gap of container between spool and valve body inner bore wall from penetrating into the venting cavity.
Compared with prior art, advantage of the present utility model is: when the bigger combustion gas of logical calorific value, only need screw adjusting screw, make adjusting screw block second small fire hole, have only first small fire hole to work, Throughput is less; When the bigger combustion gas of logical calorific value, then unscrew adjusting screw, allow second small fire hole be communicated with venting cavity, first small fire hole and second small fire hole all are communicated with venting cavity, and Throughput is big; This spool only need just can be fit to two kinds of different sources of the gas by rotating adjusting screw in sum, and first small fire hole and second small fire hole be positioned at same vertical plane, have only two gears so the spool of itself and traditional gas valve is the same, need not complicated limit structure is set, can simplify the gas valve structure of using this spool.
Description of drawings
Fig. 1 is the utility model embodiment's perspective view one;
Fig. 2 is the utility model embodiment's perspective view two;
Fig. 3 is the utility model embodiment's sectional view (the second small fire hole sealed condition);
Fig. 4 is the utility model embodiment's sectional view (the second small fire hole open mode);
Fig. 5 is the utility model embodiment's three-dimensional exploded view;
Fig. 6 is the sectional view of matrix among the utility model embodiment.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
Shown in Fig. 1～6, be a preferred embodiment of the present utility model.
A kind of fuel gas valve core that is suitable for two kinds of different sources of the gas comprises matrix 1, and the bottom of matrix 1 is provided with downward opening venting cavity 2, and the outer circumferential face of venting cavity 2 is the conical surface.The top of matrix 1 is provided with the connection chamber 3 that opening connects for valve rod up, has the slot 31 that two axial settings and opening insert for valve rod on the side face of connection chamber 3 up.Connection chamber 3 be positioned at venting cavity 2 directly over, having the big fire hole 8 and first small fire hole, 4, the first small fire holes 4 that are communicated with venting cavity 2 on the sidewall of matrix 1 is shoulder hole.
Connect by the threaded connection hole 5 that axially arranges along matrix 1 between venting cavity 2 and the connection chamber 3, the top of threaded connection hole 5 is tapped hole portion 51, and the bottom of threaded connection hole 5 is unthreaded hole portion 52.
Having second small fire hole, 6, the second small fire holes 6 that communicate with unthreaded hole portion 52 in the threaded connection hole 5 on the sidewall of matrix 1 is shoulder hole, and second small fire hole 6 is positioned at the top of first small fire hole 4, and is in the same vertical plane.
Threaded connection hole 5 internal threads are connected with adjusting screw 7, and adjusting screw 7 moving up and down in threaded connection hole 5 can be controlled described second small fire hole 6 and whether be communicated with venting cavity 2.Adjusting screw 7 has head 71, annular slot part 72, screw section 73 and polished rod portion 74 from top to bottom successively, sheathed inner circle wall with connection chamber 3 forms hermetic seal seal ring 9 on the annular slot part 72, screw section 73 is threaded with tapped hole portion 5, and polished rod portion 74 can form shutoff with the unthreaded hole portion 52 of threaded connection hole.Be cone match between unthreaded hole portion 52 inner circle walls of the periphery of polished rod portion 74 and threaded connection hole.
When the bigger combustion gas of logical calorific value, only need screw adjusting screw 7, make the polished rod portion 74 of adjusting screw 7 block the outlet end of the unthreaded hole portion 52 of threaded connection hole, second small fire hole 6 and venting cavity 2 blocking-up have only first small fire hole 4 to work, and Throughput is less; When the bigger combustion gas of logical calorific value, then unscrew adjusting screw 7, unthreaded hole portion 52, the second small fire holes 6 that make the polished rod portion 74 of adjusting screw 7 upwards break away from threaded connection hole are communicated with venting cavity 2 by unthreaded hole portion 52, this moment, first small fire hole 4 and second small fire hole 6 all were communicated with venting cavity 2, and Throughput is big.This spool only need just can be fit to two kinds of different sources of the gas by rotating adjusting screw, and first small fire hole and second small fire hole be positioned at same vertical plane, have only two gears so the spool of itself and traditional gas valve is the same, need not complicated limit structure is set, can simplify the gas valve structure of using this spool.
Claims (6)
1. fuel gas valve core that is suitable for two kinds of different sources of the gas, comprise matrix (1), the bottom of matrix (1) is provided with downward opening venting cavity (2), the top of matrix (1) is provided with the connection chamber (3) that opening connects for valve rod up, has the big fire hole (8) and first small fire hole (4) that are communicated with venting cavity (2) on the sidewall of matrix (1); It is characterized in that: connect by the threaded connection hole (5) that axially arranges along matrix (1) between described venting cavity (2) and the connection chamber (3), have second small fire hole (6) that communicates with described threaded connection hole (5) on the sidewall of described matrix (1), this second small fire hole (6) is positioned at the top of first small fire hole (4), described threaded connection hole (5) internal thread is connected with adjusting screw (7), and adjusting screw (7) moving up and down in threaded connection hole (5) can be controlled described second small fire hole (6) and whether be communicated with venting cavity (2).
2. the fuel gas valve core that is suitable for two kinds of different sources of the gas according to claim 1, it is characterized in that: the top of described threaded connection hole (5) is tapped hole portion (51), the bottom of threaded connection hole (5) is unthreaded hole portion (52), described second small fire hole (5) is communicated with unthreaded hole portion (52), described adjusting screw (7) has head (71) from top to bottom successively, annular slot part (72), screw section (73) and polished rod portion (74), described annular slot part (72) is gone up sheathed inner circle wall with connection chamber (3) and is formed hermetic seal seal ring (9), described screw section (73) is threaded with tapped hole portion (5), and described polished rod portion (74) can form shutoff with the unthreaded hole portion (52) of threaded connection hole.
3. the fuel gas valve core that is suitable for two kinds of different sources of the gas according to claim 2 is characterized in that: be cone match between unthreaded hole portion (52) inner circle wall of the periphery of described polished rod portion (74) and threaded connection hole.
4. the fuel gas valve core that is suitable for two kinds of different sources of the gas according to claim 1, it is characterized in that: described first small fire hole (4) and second small fire hole (6) are shoulder hole.
5. the fuel gas valve core that is suitable for two kinds of different sources of the gas according to claim 1 is characterized in that: have the slot (31) that two axial settings and opening insert for valve rod on the side face of described connection chamber (3) up.
6. the fuel gas valve core that is suitable for two kinds of different sources of the gas according to claim 1, it is characterized in that: the outer circumferential face of described venting cavity (2) is the conical surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320089742 CN203146896U (en) | 2013-02-27 | 2013-02-27 | Gas valve core applicable to two different gas sources |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320089742 CN203146896U (en) | 2013-02-27 | 2013-02-27 | Gas valve core applicable to two different gas sources |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203146896U true CN203146896U (en) | 2013-08-21 |
Family
ID=48974420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320089742 Expired - Lifetime CN203146896U (en) | 2013-02-27 | 2013-02-27 | Gas valve core applicable to two different gas sources |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203146896U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104676035A (en) * | 2015-03-03 | 2015-06-03 | 虞上海 | Gas valve suitable for different gas sources |
| CN104930220A (en) * | 2015-06-29 | 2015-09-23 | 重庆磐达机械有限公司 | Dual gas source fuel gas conversion valve apparatus |
| CN107101017A (en) * | 2017-05-31 | 2017-08-29 | 宁波朝阳家用燃气具有限公司 | Double spray gas valves |
| WO2017197547A1 (en) * | 2016-05-17 | 2017-11-23 | 李雪波 | Universal dual-gas valve used for facilitating the switching and adjustment of two fuel gases |
| CN110259976A (en) * | 2019-06-24 | 2019-09-20 | 华帝股份有限公司 | Valve body structure that greasy dirt blockked up prevents |
| TWI812998B (en) * | 2019-03-26 | 2023-08-21 | 日商太平洋工業股份有限公司 | Valve |
-
2013
- 2013-02-27 CN CN 201320089742 patent/CN203146896U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104676035A (en) * | 2015-03-03 | 2015-06-03 | 虞上海 | Gas valve suitable for different gas sources |
| CN104676035B (en) * | 2015-03-03 | 2017-01-18 | 虞上海 | Gas valve suitable for different gas sources |
| CN104930220A (en) * | 2015-06-29 | 2015-09-23 | 重庆磐达机械有限公司 | Dual gas source fuel gas conversion valve apparatus |
| WO2017197547A1 (en) * | 2016-05-17 | 2017-11-23 | 李雪波 | Universal dual-gas valve used for facilitating the switching and adjustment of two fuel gases |
| CN107101017A (en) * | 2017-05-31 | 2017-08-29 | 宁波朝阳家用燃气具有限公司 | Double spray gas valves |
| TWI812998B (en) * | 2019-03-26 | 2023-08-21 | 日商太平洋工業股份有限公司 | Valve |
| CN110259976A (en) * | 2019-06-24 | 2019-09-20 | 华帝股份有限公司 | Valve body structure that greasy dirt blockked up prevents |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130821 |