CN202418775U - Electronic control gas valve - Google Patents
Electronic control gas valve Download PDFInfo
- Publication number
- CN202418775U CN202418775U CN2011205757611U CN201120575761U CN202418775U CN 202418775 U CN202418775 U CN 202418775U CN 2011205757611 U CN2011205757611 U CN 2011205757611U CN 201120575761 U CN201120575761 U CN 201120575761U CN 202418775 U CN202418775 U CN 202418775U
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- Prior art keywords
- air outlet
- valve
- spool
- hole
- electric
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Abstract
The utility model discloses an electronic control gas valve, which comprises a valve body and a stepping motor arranged on the valve body, wherein a gas inlet, a gas outlet and a cock hole are arranged on the valve body, a valve core is arranged in the cock hole, and an output shaft of the stepping motor is connected with the valve core by a transmission part in a matching way; and a metal block insulated from the valve body is fixed on the inner periphery of the cock hole, a gap exists between the metal block and the valve core, part of the transmission part penetrates through the valve core to form a contact, and the contact is in contact with the metal block when the valve core rotates to a zero angle or a maximum angle. The metal block is arranged on the inner periphery of the cock hole of the electronic control gas valve, part of the transmission part for connecting the output shaft of the stepping motor and the valve core extends out of the valve core to form the contact, the metal block is in contact with the contact when the valve core rotates to the zero angle or the maximum angle, and an external control system can detect a zero-angle state and a maximum-angle state of the valve core through the electric breakover with the metal block and the output shaft of the stepping motor, thereby eliminating the potential safety hazard.
Description
Technical field
The utility model relates to a kind of gas valve, relates in particular to a kind of electric-controlled gas valve with zero-bit and maximum fire detection.
Background technique
Fuel gas plug valve is the mechanical type stopcock mostly in the market, closes and has virgin lock limit function during the maximum fire state at its firepower.Mechanical manual plug valve is through manually-operable valve rod regulation valve body Throughput, in the valve closing position and fully open position be provided with mechanical position limitation mechanism, the time can judge above-mentioned two kinds of location statuss in operation through feel.Electrically-controlled valve is to rely on step motor drive to regulate Throughput, and human body does not directly contact valve body, and above-mentioned position-limit mechanism control system can't be sensed, and can't detect therefore that firepower is closed and the maximum fire state.
Chinese patent 200620103973.9 discloses a kind of gas control valve of household gas range, is provided with gas-entered passageway, outlet passageway and control chamber in the valve body of this control valve, the sealing of gas-entered passageway one end, and the other end communicates with control chamber, and its sidewall has suction port; Outside the one end pass-out valve body of outlet passageway, the sidewall that the other end is opened on control chamber forms the air outlet; Spool is the hollow round table of end sealing, an end opening, places in the control chamber, and closely cooperates with the control chamber sidewall.The sidewall of spool is along the circumferential corresponding regulating the qi flowing in the channels mouth that has with the position, air outlet, and the closed end of stepper motor and spool is connected.The electric-controlled gas valve of above-mentioned patent and unexposed has corresponding position-limit mechanism, has potential safety hazard.
Summary of the invention
The utility model discloses a kind of electric-controlled gas valve, solved existing electric-controlled gas valve and do not had zero-bit and maximum fire detection, thereby have the problem of potential safety hazard.
A kind of electric-controlled gas valve comprises valve body and is installed in the stepper motor on the valve body that valve body is provided with the faucet hole of inlet hole, air outlet hole and built-in spool, and the output shaft of stepper motor is connected through driving component and spool; Described faucet hole inner peripheral surface is fixed with the slug with valve body insulation, leaves the gap between slug and the spool, and described driving component partly passes spool and constitutes the contact, and described contact contacts with slug during with maximum angle in the valve core rotation zero angle.
Described driving component is the pin of dialling that is vertically fixed on the output shaft of stepper motor; Said spool is provided with the needle tray of dialling that cooperates with said group of pin near an end end of stepper motor; Dial pin one end end and stretch out the described contact of the outer formation of spool, it is one-body molded to be preferably the output shaft of dialling pin and stepper motor.
Said spool is provided with the groove that the output shaft that supplies said stepper motor stretches near an end end of stepper motor, is provided with stage clip between groove floor and the output shaft, stage clip is set can guarantees that spool and faucet hole are sealed and matched.
Comprise respectively first lead and second lead that the output shaft with slug and said stepper motor conducts, be convenient to electric-controlled gas valve and external control system connection, second lead can be to be connected with the stepper motor shell.
Described valve body is provided with the through hole that is communicated with faucet hole; The through hole outboard end seals with insulation cover plate; The insulation cover plate inner side surface is provided with the insulating bush that cooperates with slug, and insulating bush is isolated slug and valve body, and the screw of slug through passing insulation cover plate is in insulating bush.
Comprise respectively first lead and second lead that conduct with slug and said output shaft, described first lead is connected with said screw, is convenient to the assembling of lead.
Comprise being installed in the solenoid valve that is communicated with the inlet hole inlet end on the valve body, double blowout protection is provided to solenoid valve.
Described spool is provided with at least one group of air outlet along the bore inequality of same circumferencial direction setting; The corresponding setting of same air outlet hole on this group air outlet and valve body; The bore of the air outlet that the bore in this group air outlet is maximum is not more than the aperture of corresponding air outlet hole, has changed tradition through changing air outlet and the regulating the qi flowing in the channels of air outlet hole area of overlap, directly through air outlet hole being aimed at the air outlet of different bores; Realize regulating the qi flowing in the channels, more accurate.
Described air outlet hole comprises outer shroud air outlet hole and interior ring air outlet hole, spool be provided with two groups respectively with outer shroud air outlet hole and the corresponding air outlet of interior ring air outlet hole.
The faucet hole inner peripheral surface of the utility model electric-controlled gas valve is provided with slug; And the driving component that connects stepper motor output shaft and spool partly stretches out spool formation contact; When valve core rotation zero angle and maximum angular, slug contacts with the contact, and external control system conducts through realization and slug and stepper motor output shaft; Can detect the zero angle and the maximum angular position state of spool, eliminate potential safety hazard.
Description of drawings
Fig. 1 is the structural representation of the utility model electric-controlled gas valve;
Fig. 2 is the sectional drawing of electric-controlled gas valve shown in Figure 1;
Fig. 3 (a) is the A-A sectional drawing of electric-controlled gas valve shown in Figure 1 when the valve core rotation zero angle;
Fig. 3 (b) is the A-A sectional drawing of electric-controlled gas valve shown in Figure 1 when the valve core rotation maximum angular;
Fig. 4 is the structural representation of spool in the utility model electric-controlled gas valve;
Fig. 5 is the sectional drawing of spool shown in Figure 4.
Fig. 6 is that the inside and outside ring gas circuit changes schematic representation in the utility model electric-controlled gas valve core rotation process; (a) be 0 ° of valve core rotation; (b) be 55 ° of valve core rotation; (c) be 100 ° of valve core rotation; (d) be 145 ° of valve core rotation; (e) be 190 ° of valve core rotation; (f) be 235 ° of valve core rotation; (g) be 295 ° of valve core rotation.
Embodiment
As shown in the figure; A kind of electric-controlled gas valve; Comprise valve body 1 and the stepper motor 2 and solenoid valve 3 that are installed on the valve body 1; Valve body 1 is provided with inlet hole 100, outer shroud air outlet hole 101, interior ring air outlet hole 102 and faucet hole 103, and solenoid valve 3 is communicated with inlet hole 100, and the spool 4 that is sealed and matched with it is arranged in the faucet hole 103.
Spool 4 is a hollow structure, and bottom end opening is communicated with in inlet hole 100, and wall is provided with two groups of air outlets, and arrange along same circumferencial directions all air outlets in every group of air outlet, and the bore inequality, preferably along the circumferential direction increases gradually or reduces; Wherein air outlet group 401 is corresponding with outer shroud air outlet hole 101; Totally 3 air outlets, air outlet group 402 is corresponding with interior ring air outlet hole 102, totally 6 air outlets; Each two of the air outlets of large, medium and small bore; Shown in Fig. 6 (a)～(g), this structure gas control valve has 6 grades of firepower, is respectively: in outer do not have for a short time, interior China and foreign countries do not have, interiorly do not have outward greatly, in little outer little, the interior China and foreign countries and interior big outer big.
Spool 2 top closure, closed end is fluted 400, and the output shaft 201 of stepper motor 2 stretches in the groove 400, and output shaft 201 is provided with integrated with it group of pin 202, and spool 4 closed ends are provided with dials needle tray 403, dials needle tray 403 and crosses with groove 400.Between groove 400 bottom surfaces and the output shaft 201 stage clip 5 is arranged, guarantee that spool 4 and faucet hole 103 are sealed and matched.
The faucet hole inner peripheral surface at spool 4 closed ends place has through hole; The through hole outboard end is with insulation cover plate 6 sealings; There is insulating bush 601 insulation cover plate 6 inboards; Be provided with slug 602 in the insulating bush 601, slug 602 is fixed in the insulating bush 601 through the screw 603 that passes insulation cover plate 601, and insulating bush is isolated slug and valve body 1 insulation; Slug 602 omits to the chamber central protuberance, and leaves a little gap between the spool 4.Dial pin 202 1 ends and stretch out that spool 4 is outer to constitute contacts 203, as shown in Figure 3, contact 203 contacts with slug 602 during with maximum angular in the valve core rotation zero angle.
Easy to connect for gas valve and external control system, can lead 701 be fixedly connected with screw 603, lead 702 is connected with the shell of stepper motor 2, conducts with slug 602 and output shaft 201 respectively as long as can realize lead 701,702.Therefore also above-mentioned lead can be set, only when installing, connect.
As shown in Figure 6; Air outlet caliber size on the spool 4 of above-mentioned gas valve is different; It regulates air inflow through the inlet end of the air outlet of different bores being aimed at air outlet hole, because the air outlet bore of same group of air outlet medium caliber maximum is not more than the aperture of corresponding air outlet hole, the therefore final gas quantity that flows out this air outlet hole is determined by the air outlet bore of aiming at; Because the air outlet bore is fixed, therefore every grade gas output is also fixed.Because stepper motor by pulsed drive work, can't reach the purpose of accurate adjusting through traditional regulating the qi flowing in the channels mode, and can realize through the utility model structure.
The working principle of above-mentioned electric-controlled gas valve is following:
During stepper motor 2 work, it drives spool 4 rotations through dialling pin 202, in spool 4 rotation processes; The air outlet of the different bores on the sidewall is aimed at the air outlet hole on the valve body 1, thereby realizes the adjusting of tolerance, when zero degree and maximum angle; Contact 203 touches slug 602; Control mechanism can detect circuit turn-on through lead, shown in Fig. 6 (a) and 6 (g), thereby can judge that gas valve is in the perhaps maximum fire state of closing.Solenoid valve 3 provides another heavy blowout protection in addition, even stepper motor 2 work are invalid, also can realize closing solenoid valve.
Claims (10)
1. an electric-controlled gas valve comprises valve body and is installed in the stepper motor on the valve body, and valve body is provided with the faucet hole of inlet hole, air outlet hole and built-in spool, and the output shaft of stepper motor is connected through driving component and spool; It is characterized in that; Described faucet hole inner peripheral surface is fixed with the slug with the valve body insulation; Leave the gap between slug and the spool, described driving component partly passes spool and constitutes the contact, and described contact contacts with slug during with maximum angle in the valve core rotation zero angle.
2. electric-controlled gas valve as claimed in claim 1; It is characterized in that; Described driving component is the pin of dialling that is vertically fixed on the output shaft of stepper motor; Said spool is provided with the needle tray of dialling that cooperates with said group of pin near an end end of stepper motor, dials pin one end end and stretches out the described contact of the outer formation of spool.
3. electric-controlled gas valve as claimed in claim 2 is characterized in that, the output shaft of the described group of pin and stepper motor is one-body molded.
4. electric-controlled gas valve as claimed in claim 2 is characterized in that, said spool is provided with the groove that the output shaft that supplies said stepper motor stretches near an end end of stepper motor, is provided with stage clip between groove floor and the output shaft.
5. electric-controlled gas valve as claimed in claim 1 is characterized in that, comprises respectively first lead and second lead that the output shaft with slug and said stepper motor conducts.
6. like claim 1 or 5 described electric-controlled gas valves; It is characterized in that; Described valve body is provided with the through hole that is communicated with faucet hole, and the through hole outboard end seals with insulation cover plate, and the insulation cover plate inner side surface is provided with the insulating bush that cooperates with slug; Insulating bush is isolated slug and valve body, and the screw of slug through passing insulation cover plate is in insulating bush.
7. electric-controlled gas valve as claimed in claim 6 is characterized in that, comprises respectively first lead and second lead that conduct with slug and said output shaft, and described first lead is connected with said screw.
8. electric-controlled gas valve as claimed in claim 1 is characterized in that, comprises being installed in the solenoid valve that is communicated with the inlet end of inlet hole on the valve body.
9. electric-controlled gas valve as claimed in claim 1; It is characterized in that; Described spool is provided with at least one group of air outlet along the bore inequality of same circumferencial direction setting; The corresponding setting of same air outlet hole on this group air outlet and valve body, the bore of the air outlet of the bore maximum in this group air outlet is not more than the aperture of corresponding air outlet hole.
10. electric-controlled gas valve as claimed in claim 9 is characterized in that, described air outlet hole comprises outer shroud air outlet hole and interior ring air outlet hole, spool be provided with two groups respectively with outer shroud air outlet hole and the corresponding air outlet of interior ring air outlet hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205757611U CN202418775U (en) | 2011-12-31 | 2011-12-31 | Electronic control gas valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205757611U CN202418775U (en) | 2011-12-31 | 2011-12-31 | Electronic control gas valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202418775U true CN202418775U (en) | 2012-09-05 |
Family
ID=46743542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205757611U Expired - Lifetime CN202418775U (en) | 2011-12-31 | 2011-12-31 | Electronic control gas valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202418775U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106523775A (en) * | 2016-11-24 | 2017-03-22 | 浙江星月实业有限公司 | Electrically-controlled gas valve |
| CN109630688A (en) * | 2018-12-26 | 2019-04-16 | 佛山市顺德区美的洗涤电器制造有限公司 | A kind of gas valve and gas utensil |
| CN109695746A (en) * | 2018-12-26 | 2019-04-30 | 佛山市顺德区美的洗涤电器制造有限公司 | A kind of gas valve and gas utensil |
| CN109695743A (en) * | 2018-12-26 | 2019-04-30 | 佛山市顺德区美的洗涤电器制造有限公司 | A kind of gas valve and gas utensil |
| CN114278777A (en) * | 2021-11-12 | 2022-04-05 | 浙江新涛电子科技有限公司 | Gas valve and control method |
-
2011
- 2011-12-31 CN CN2011205757611U patent/CN202418775U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106523775A (en) * | 2016-11-24 | 2017-03-22 | 浙江星月实业有限公司 | Electrically-controlled gas valve |
| CN109630688A (en) * | 2018-12-26 | 2019-04-16 | 佛山市顺德区美的洗涤电器制造有限公司 | A kind of gas valve and gas utensil |
| CN109695746A (en) * | 2018-12-26 | 2019-04-30 | 佛山市顺德区美的洗涤电器制造有限公司 | A kind of gas valve and gas utensil |
| CN109695743A (en) * | 2018-12-26 | 2019-04-30 | 佛山市顺德区美的洗涤电器制造有限公司 | A kind of gas valve and gas utensil |
| CN114278777A (en) * | 2021-11-12 | 2022-04-05 | 浙江新涛电子科技有限公司 | Gas valve and control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 312500 Xinchang County, Zhejiang Province, Tao Road, No. 68, No. Patentee after: Zhejiang Xin Tao Zhi Polytron Technologies Inc Address before: The new Tao road 312500 County of Xinchang province Shaoxing City, Zhejiang province high tech Development Zone No. 68 Patentee before: Zhejiang Xintao Electronic Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120905 |