CN203146893U - Gas valve capable of continuously adjusting gas quantity - Google Patents
Gas valve capable of continuously adjusting gas quantity Download PDFInfo
- Publication number
- CN203146893U CN203146893U CN 201320089778 CN201320089778U CN203146893U CN 203146893 U CN203146893 U CN 203146893U CN 201320089778 CN201320089778 CN 201320089778 CN 201320089778 U CN201320089778 U CN 201320089778U CN 203146893 U CN203146893 U CN 203146893U
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- gas
- valve
- spool
- valve rod
- guide groove
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Abstract
The utility model relates to a gas valve capable of continuously adjusting gas quantity. The gas valve comprises a valve body provided with a gas inlet channel and a gas outlet channel, wherein the valve body is internally provided with a rotatable valve core, a ventilating chamber opened downward is arranged on the lower part of the valve core, and a big fire hole is arranged on the side wall of the ventilating chamber of the valve core. A valve rod which can drive the valve core to rotate is arranged by passing through the valve body. The gas valve is characterized in that a spiral groove shaped gas guide groove is moulded on the peripheral wall of the valve core. The opening part at the tail end of the gas guide groove is communicated with the big fire hole, so that when the valve core in the rotating process of adjusting the gas quantity, the gas guide groove is always communicated with the ventilating chamber through the big fire hole, and no neutral position exists in the whole process. The spiral groove shaped valve core is designed, so that when the valve core in the rotating process of adjusting the gas quantity, the flow change (transitional process from big fire to small fire) is linear (look like a straight line), so that the big and small fires are stable to adjust in the adjusting process, and the gas valve is not easy to cut off.
Description
Technical field
The utility model relates to a kind of gas valve for the combustion gas tool, relates in particular to a kind ofly can regulate the gas valve of tolerance continuously.
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.
Be a kind of gas valve the Chinese utility model patent " fuel gas plug valve " of ZL201020181562.8 (notification number is CN201672087U) has disclosed as a patent No..
Existing this gas valve, big fire hole and small fire hole on its spool perisporium arranged along the circle spacing, distance at interval is relevant with knob revolvable angular dimension of institute in regulating intensity of a fire size process, just because fire hole and small fire hole arranged along the circle spacing greatly, no matter spool is clockwise or is rotated counterclockwise, be adjusted to little fire from big fire, or be adjusted to big fire from little fire a neutral position is all arranged, this neutral position is the spool perisporium between big fire hole and the small fire hole, because the design deficiency of existing spool., prior art is not linear change when flow comes out in the valve core rotation process, particularly in big fire to the transition stage of little fire, that changes in flow rate is not is linear, descend than row, might present as Fig. 6 described unbalanced, non-linear characteristics.The actual user feel to be to use the time firepower size variation in the large and small fire handoff procedure, become big suddenly, perhaps do not change, diminish suddenly again when fiery to little.Exist in the large and small fire adjustment process and regulate instability, easily the defective of stopping working brings many inconvenience for actual use.Thereby existing fuel gas plug valve needs further improvement.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of gas valve of tolerance of can regulating continuously at above-mentioned prior art present situation, and this gas valve guarantees have combustion gas to pass through all the time in the large and small fire adjustment process.
The utility model solves the problems of the technologies described above the technological scheme that adopts: a kind ofly can regulate the gas valve of tolerance continuously, comprise the valve body with gas-entered passageway and outlet passageway, be provided with revolvable spool in the valve body, the spool bottom is provided with opening venting cavity down, has on the venting cavity sidewall of spool in order to be communicated with the big fire hole of gas-entered passageway and outlet passageway; Be equipped with the valve rod that can drive 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 the moving down of valve rod understood be connected and can drive spool with spool and rotated; It is characterized in that: form the gas guide groove of groove shape in the shape of a spiral on the described spool periphery wall, the opening portion of gas guide groove tail end is communicated with big fire hole.
Above-mentioned gas guide groove is along the circumference setting that is inclined upwardly slightly gradually.This gas guide groove set-up mode makes the trend that is increase gradually or reduces at the contact ratio that rotates gas guide groove and gas-entered passageway when spool, and the variation of tolerance is the trend that gradual slow changes, and guarantees that the adjusting of gas valve is more steady rationally.
The top of above-mentioned spool is provided with opening spring chamber up, and this spring chamber and described venting cavity are blocked each other, and described spring is positioned at spring chamber.Spring chamber is set provides suitable installation position to spring, spring can not depart from, and guaranteeing provides elastic force upwards to valve rod.
Has the protruding attachment post of side on the lower end side face of above-mentioned valve rod, have the slot that axial setting and opening insert for attachment post on the side face of described spring chamber up, under valve rod is in raised state, described attachment post is positioned at the top of slot, under the state that valve rod moves down, described attachment post is positioned at slot.This valve rod realizes that with valve core structure the clutch between valve rod and the spool is connected, and after valve rod moved, attachment post broke away from slot, rotation valve rod just can not drive the spool rotation, and after valve rod moved down, attachment post inserted in the slot, rotation valve rod, attachment post just can promote slot and then drive the spool rotation.
Above-mentioned valve body is formed by connecting by screw by last valve casing and following valve casing, and described gas-entered passageway and outlet passageway are arranged on down on the valve casing, and described valve rod is located on the valve casing.This valve body structure is convenient to spool and valve rod are assemblied in the valve body.
Compared with prior art, advantage of the present utility model is: form spiral gas guide groove on the spool periphery wall in this gas valve, the opening portion of gas guide groove tail end is communicated with big fire hole, work as spool like this in the rotary course of regulating tolerance, gas guide groove is communicated with venting cavity by big fire hole all the time, there is not neutral gear in the whole process, adopt the spool of spiral chute design, make that working as spool changes in flow rate (transitional processes from big fire to little fire) in the rotary course of regulating tolerance is (the looking like straight line) that is linear change, therefore regulate stable, difficult flame-out in the large and small fire adjustment process.
Description of drawings
Fig. 1 is the utility model embodiment's perspective view;
Fig. 2 is the utility model embodiment's sectional view;
Fig. 3 is the utility model embodiment's three-dimensional exploded view;
Fig. 4 is the perspective view of spool among the utility model embodiment;
Fig. 5 is the linear table of comparisons of the valve body flow of gas valve among the utility model embodiment;
Fig. 6 is the linear table of comparisons of the valve body flow of existing gas valve.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
Shown in Fig. 1～4, be a preferred embodiment of the present utility model
A kind ofly can regulate the gas valve of tolerance continuously, comprise the valve body 1 with gas-entered passageway 121 and outlet passageway 122, valve body 1 is formed by connecting by screw by last valve casing 11 and following valve casing 12, and gas-entered passageway 121 and outlet passageway 122 are arranged on down on the valve casing 12.Be provided with revolvable spool 3 in the valve body 1, spool 3 bottoms are provided with opening venting cavity 31 down, and the outer circumferential face of venting cavity 31 is the conical surface, and the top of spool 3 is provided with opening spring chamber 34 up, and spring chamber 34 is blocked each other with venting cavity 31.
Be equipped with the valve rod 2 that can drive spool 3 rotations on the last valve casing 11 in the valve body 1, the lower end of valve rod 2 holds and makes valve rod 2 keep moving and disengaging is connected the spring 4 of trend with spool 3, spring 4 is positioned at spring chamber 34, and the moving down can be with spool 3 be connected and can drive spool 3 of valve rod 2 rotated.
Has the protruding attachment post of side 21 on the lower end side face of valve rod 2, have the slot 35 that axial setting and opening insert for attachment post 21 on the side face of spring chamber 3 up, be under the raised state at valve rod 2, attachment post 21 is positioned at the top of slot 35, under the state that valve rod 2 moves down, attachment post 21 is positioned at slot 35.
Shown in Fig. 2～4, have on venting cavity 31 sidewalls of spool in order to be communicated with the big fire hole 32 of gas-entered passageway 121 and outlet passageway 122, form the gas guide groove 33 of groove shape in the shape of a spiral on spool 3 periphery walls, gas guide groove 33 is along the circumference setting that is inclined upwardly slightly gradually, the opening portion of these gas guide groove 33 tail ends is communicated with big fire hole 32, at big fire hole 32 and gas-entered passageway 121 under the state of conducting, the Throughput maximum, in adjustment process, source of the gas is through gas-entered passageway 121, gas guide groove 33, big fire hole 32 and venting cavity 31 backs are from outlet passageway 122 ejections, tolerance reduces gradually, under the state of blocking with gas guide groove 33 and gas-entered passageway 121 in big 32 whiles of fire hole, Throughput is zero.
The user can be by being arranged on knob on the operation panel and operating valve lever 2, generally press knob earlier and rotate counterclockwise, after valve rod 2 moves down, attachment post 21 inserts in the slot 35, and rotation valve rod 2, attachment post 21 just can promote slot 35 and then drive spool 2 to be rotated counterclockwise, gas-entered passageway 121 in big fire hole 32 and the valve body on the spool 3 is connected, at this moment, source of the gas, uses for the combustion gas tool from outlet passageway 122 ejections through gas-entered passageway 121, big fire hole 32 and venting cavity 31 backs.When turning the intensity of a fire down, the user continues to rotate counterclockwise knob, big fire hole 32 in the spool 2 is misplaced gradually with gas-entered passageway 121, and gas guide groove 33 overlaps with gas-entered passageway 121 gradually, source of the gas sprays from outlet passageway 122 through gas-entered passageway 121, gas guide groove 33, big fire hole 32 and venting cavity 31 backs, tolerance reduces gradually, under big fire hole 32 and 121 blocking-up while of gas-entered passageway gas guide groove 33 and state that gas-entered passageway 121 is communicated with, and the Throughput minimum; When closing fire, be rotated further valve rod 2, under the state of blocking with gas guide groove 33 and gas-entered passageway 121 in big 32 whiles of fire hole, Throughput is zero, and valve rod 3 moves under the effect of spring 4, and attachment post 21 breaks away from slot 35.If the user wants the little intensity of a fire to remap to the maximum intensity of a fire, also, rotary valve key 3, gas guide groove 33 misplaces gradually with gas-entered passageway 121, simultaneously big fire hole 32 overlaps with gas-entered passageway 121 gradually, at big fire hole 32 and gas-entered passageway 121 under the state of conducting, the Throughput maximum.
Spool is in the rotary course of regulating tolerance, gas guide groove is communicated with venting cavity by big fire hole all the time, there is not neutral gear in the whole process, adopt the spool of spiral chute design, make that working as spool changes in flow rate (transitional processes from big fire to little fire) in the rotary course of regulating tolerance is (the looking like straight line) that is linear change, as shown in Figure 6.
Claims (5)
1. can regulate the gas valve of tolerance continuously for one kind, the valve body (1) that comprises have gas-entered passageway (121) and outlet passageway (122), be provided with revolvable spool (3) in the valve body (1), spool (3) bottom is provided with opening venting cavity (31) down, has on the venting cavity of spool (31) sidewall in order to be communicated with the big fire hole (32) of gas-entered passageway (121) and outlet passageway (122); Be equipped with the valve rod (2) that can drive spool (3) rotation on the valve body (1), the lower end of valve rod (2) holds to make and moves in valve rod (2) maintenance and disengaging is connected the spring (4) of trend with spool (3), and the moving down can be connected with spool (3) and can drive spool (3) of valve rod (2) rotated; It is characterized in that: form the gas guide groove of groove shape (33) in the shape of a spiral on described spool (3) periphery wall, the opening portion of this gas guide groove (33) tail end is communicated with big fire hole (32).
2. according to claim 1ly can regulate the gas valve of tolerance continuously, it is characterized in that: described gas guide groove (33) is along the circumference setting that is inclined upwardly slightly gradually.
3. according to claim 1ly can regulate the gas valve of tolerance continuously, it is characterized in that: the top of described spool (3) is provided with opening spring chamber (34) up, this spring chamber (34) is blocked each other with described venting cavity (31), and described spring (4) is positioned at spring chamber (34).
4. according to claim 3ly can regulate the gas valve of tolerance continuously, it is characterized in that: have the protruding attachment post of side (21) on the lower end side face of described valve rod (2), have the slot (35) that axial setting and opening supply attachment post (21) to insert on the side face of described spring chamber (3) up, be under the raised state at valve rod (2), described attachment post (21) is positioned at the top of slot (35), under the state that valve rod (2) moves down, described attachment post (21) is positioned at slot (35).
5. describedly can regulate the gas valve of tolerance continuously according to arbitrary in the claim 1～4, it is characterized in that: described valve body (1) is formed by connecting by screw by last valve casing (11) and following valve casing (12), described gas-entered passageway (121) and outlet passageway (122) are arranged on down on the valve casing (12), and described valve rod (2) is located on the valve casing (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320089778 CN203146893U (en) | 2013-02-27 | 2013-02-27 | Gas valve capable of continuously adjusting gas quantity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320089778 CN203146893U (en) | 2013-02-27 | 2013-02-27 | Gas valve capable of continuously adjusting gas quantity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203146893U true CN203146893U (en) | 2013-08-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320089778 Expired - Lifetime CN203146893U (en) | 2013-02-27 | 2013-02-27 | Gas valve capable of continuously adjusting gas quantity |
Country Status (1)
| Country | Link |
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| CN (1) | CN203146893U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103423480A (en) * | 2013-08-30 | 2013-12-04 | 宁波万安股份有限公司 | Linear-flow-rate cock gas valve |
| CN105157206A (en) * | 2015-08-21 | 2015-12-16 | 谢启标 | Self-power-generation gas water heater capable of carrying out linear regulation |
| CN105715818A (en) * | 2016-03-15 | 2016-06-29 | 宁波来特燃气具有限公司 | Gas valve capable of realizing synchronous change of inner ring fire and outer ring fire |
| CN107296210A (en) * | 2017-05-18 | 2017-10-27 | 浙江帝恒实业有限公司 | A kind of automatic popcorn machine |
| CN114352772A (en) * | 2022-01-11 | 2022-04-15 | 中山市鑫顺利科技有限公司 | Gas regulating valve |
| WO2023091100A1 (en) * | 2021-11-22 | 2023-05-25 | Turaş Gaz Armatürleri̇ San. Ve Ti̇c. A.Ş. | An improved conical element for gas passage in multi-stage gas taps |
-
2013
- 2013-02-27 CN CN 201320089778 patent/CN203146893U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103423480A (en) * | 2013-08-30 | 2013-12-04 | 宁波万安股份有限公司 | Linear-flow-rate cock gas valve |
| CN103423480B (en) * | 2013-08-30 | 2015-11-25 | 宁波万安股份有限公司 | A kind of linear flow cock gas valve |
| CN105157206A (en) * | 2015-08-21 | 2015-12-16 | 谢启标 | Self-power-generation gas water heater capable of carrying out linear regulation |
| CN105715818A (en) * | 2016-03-15 | 2016-06-29 | 宁波来特燃气具有限公司 | Gas valve capable of realizing synchronous change of inner ring fire and outer ring fire |
| CN105715818B (en) * | 2016-03-15 | 2018-02-02 | 宁波来特燃气具有限公司 | Outer ring fire and the gas valve that interior ring fire synchronously changes can be achieved |
| CN107296210A (en) * | 2017-05-18 | 2017-10-27 | 浙江帝恒实业有限公司 | A kind of automatic popcorn machine |
| WO2023091100A1 (en) * | 2021-11-22 | 2023-05-25 | Turaş Gaz Armatürleri̇ San. Ve Ti̇c. A.Ş. | An improved conical element for gas passage in multi-stage gas taps |
| CN114352772A (en) * | 2022-01-11 | 2022-04-15 | 中山市鑫顺利科技有限公司 | Gas regulating valve |
| CN114352772B (en) * | 2022-01-11 | 2023-11-21 | 中山市鑫顺利科技有限公司 | Gas regulating valve |
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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 |
Granted publication date: 20130821 |
|
| CX01 | Expiry of patent term |