CN104949165A - Anti-backfire gas stove - Google Patents
Anti-backfire gas stove Download PDFInfo
- Publication number
- CN104949165A CN104949165A CN201510420643.6A CN201510420643A CN104949165A CN 104949165 A CN104949165 A CN 104949165A CN 201510420643 A CN201510420643 A CN 201510420643A CN 104949165 A CN104949165 A CN 104949165A
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- CN
- China
- Prior art keywords
- burner
- blade
- gas
- pressure sensor
- gas stove
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C3/00—Stoves or ranges for gaseous fuels
- F24C3/12—Arrangement or mounting of control or safety devices
- F24C3/126—Arrangement or mounting of control or safety devices on ranges
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C3/00—Stoves or ranges for gaseous fuels
- F24C3/08—Arrangement or mounting of burners
- F24C3/085—Arrangement or mounting of burners on ranges
- F24C3/087—Arrangement or mounting of burners on ranges in baking ovens
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Feeding And Controlling Fuel (AREA)
- Regulation And Control Of Combustion (AREA)
Abstract
The invention relates to an anti-backfire gas stove. The anti-backfire gas stove comprises a nozzle, a furnace end and a burner which are sequentially connected. The anti-backfire gas stove further comprises a switching mechanism which is arranged inside the furnace end and can block and open a gas channel inside the furnace end. When the gas stove is closed, the switching mechanism can block the gas channel inside the furnace end. Due to the fact that the switching mechanism is arranged inside the furnace end, the furnace end is directly connected with the burner, the residual gas volume is greatly lowered, the probability that mixing ratio of gas to air is within the explosion limit is greatly lowered, a small amount of gas remained in the furnace end and the burner can be burned by a flame, the flame cannot be spread towards the furnace end or farther, the continuous flameout noise and even the explosive sound due to the fact that the flame is spread for the long time are avoided, and parts of the gas stove is effectively protected from being damaged.
Description
Technical field
The present invention relates to cooker production technical field, particularly a kind of anti-backfire gas-cooker.
Background technology
Current gas-cooker often can send when closing " bang " a sound, Here it is flame-out noise.Usually with quick-fried sound or noise occur time flame-out, the heat that this burning produces not only can not be utilized, even also likely cause the generation of accident, this is a kind of common phenomenon in tempering, tempering phenomenon all can produce damaging influence to burner and whole gas-cooker, the serious property loss of people that may cause even endangers the life security of people, therefore should avoid the generation of tempering phenomenon as far as possible.
Research finds, tempering is that the mixed gas flow owing to entering burner constantly reduces, and namely air velocity constantly reduces, finally because air velocity is less than flame propagation velocity, flame is by indentation burner combustion, and the mixing ratio of combustion gas and air will produce quick-fried sound within the scope of explosible limit concentration.
As everyone knows, when valve closing, the amount remaining in the combustion gas in burner or pipeline is fewer, the mixing ratio of combustion gas and air is more impossible reaches explosion limit, therefore when valve closing, as long as can ensure to there is as far as possible few combustion gas in burner and pipeline, can eliminate or reduce the generation of tempering phenomenon.
As shown in fig. 1, in current gas-cooker, combustion gas finally sprays burning to burner 06 by main tracheae 01, valve body assembly 02, gas-distributing pipe 03, nozzle 04, burner 05, primary air required for burning is depending nozzle 04 and the mixing of burner 05 injection, sprays burning again after then fully mixing in burner 05 through burner 06.When gas-cooker is closed, valve body assembly cuts off the admission passage of natural gas, but has all retained unburned air mixture in gas-distributing pipe 03, nozzle 04, burner 05 and burner 06, and this just easily occurs tempering phenomenon.
Therefore, when the valve closing of gas-cooker, how to ensure there is as far as possible few combustion gas in burner and pipeline, to eliminate or what reduce tempering phenomenon is the technical problem that those skilled in the art need solution badly.
Summary of the invention
The object of this invention is to provide a kind of anti-backfire gas-cooker, can make to there is as far as possible few combustion gas in burner and pipeline, thus eliminate or reduce the generation of tempering phenomenon.
For solving the problems of the technologies described above, anti-backfire gas-cooker provided by the invention, comprise the nozzle, burner and the burner that connect successively, also comprise in this anti-backfire gas-cooker and being arranged in described burner, and can the switching mechanism of blast tube in shutoff and open described burner.
Preferably, described switching mechanism comprises:
Along the radial arrangement of described burner, and the support fixing with described burner is taken out;
First blade hinged with described back shaft and the second blade, be configured for the plugging plate of the blast tube in burner described in shutoff after described first blade and the second mounted blade; Blast tube when described first blade and the laminating of the second blade in completely open described burner;
The drive rod that can move axially along described burner;
One end and described drive rod hinged, the other end is with the first connecting rod of described first vane hinge;
One end and described drive rod hinged, the second connecting rod of the other end and described second vane hinge.
Preferably, described first blade and described second blade are about described bolster symmetry, and described first connecting rod and described second connecting rod pass through same jointed shaft and described drive rod is hinged.
Preferably, also comprise the drive motors that output shaft is positioned at described burner, the output shaft of described motor is provided with driven wheel, described drive rod is the tooth bar with described driven wheel engaged transmission.
Preferably, also comprise:
Be arranged on the runner in the rotating shaft of gas stove valve assembly;
Be arranged in gas stove valve assembly, and can with the pressure sensor of described rotatable wheel contacts, when described gas stove valve assembly is opened, described runner and described pressure sensor depart from; When described gas stove valve assembly is closed, described runner and described pressure sensor contacts;
Controller, when described pressure sensor is in not subjected to pressure state, described controller controls described electric machine rotation, and makes described drive rod drive described first blade and described second blade laminating; When described pressure sensor is in pressured state, described controller controls described motor counter-rotation, and makes described drive rod drive described first blade and described second mounted blade.
Preferably, also comprise:
Be arranged on the runner in the rotating shaft of gas stove valve assembly;
Be arranged in gas stove valve assembly, and can with the pressure sensor of described rotatable wheel contacts, when described gas stove valve assembly is opened, described runner and described pressure sensor contacts; When described gas stove valve assembly is closed, described runner and described pressure sensor depart from;
Controller, when described pressure sensor is in pressured state, described controller controls described electric machine rotation, and makes described drive rod drive described first blade and described second blade laminating; When described pressure sensor is in not subjected to pressure state, described controller controls described motor counter-rotation, and makes described drive rod drive described first blade and described second mounted blade.
Preferably, described burner comprises the first half be connected with described burner, and with described nozzle be connected latter half of, and described first half is connected with described latter half of bolt.
Preferably, described burner comprises the multiple sub-burner be arranged side by side, and is provided with described switching mechanism in sub-burner described in any one.
As can be seen from the above technical solutions, in anti-backfire gas-cooker disclosed in the present invention, setting up in the blast tube in burner can the switching mechanism of blast tube in shutoff and open burner.
When closing gas-cooker, the blast tube in this switching mechanism shutoff burner can be made simultaneously, because this switching mechanism is arranged in burner, and burner and burner are directly connected, this greatly reduces with regard to making the gas quantity remained, the probability that the mixing ratio of combustion gas and air is in explosion limit reduces greatly, flame can only by the small part fuel gas buring stayed in burner and burner totally, and direction propagation in burner or farther can not be continued, avoid the flame-out noise even explosive sound continued occurred because the flame propagation time is long, the parts of available protecting gas-cooker are without prejudice.
Accompanying drawing explanation
Fig. 1 is the part-structure schematic diagram of gas-cooker in prior art;
Fig. 2 is the view of the switching mechanism disclosed in the embodiment of the present invention when shutoff burner;
Fig. 3 is the view of switching mechanism when open burner disclosed in the embodiment of the present invention;
Fig. 4 is the part exploded perspective view of anti-backfire gas-cooker disclosed in the embodiment of the present invention;
Fig. 5 is the structural representation of valve body assembly disclosed in the embodiment of the present invention;
Fig. 6 is the structural representation of runner disclosed in the embodiment of the present invention.
Wherein, 1 is back shaft, and 2 is the first blade, and 3 is the second blade, and 4 is drive rod, and 5 is first connecting rod, 6 is second connecting rod, and 7 is driven wheel, and 8 is burner, and 9 is motor lines, and 10 is drive motors, 11 is sealing ring, and 12 is bolt, and 13 is rotating shaft, and 14 is runner, and 15 is pressure sensor.
Detailed description of the invention
Core of the present invention is to provide a kind of tempering gas range, can make to there is as far as possible few combustion gas in burner and pipeline, thus eliminates or reduce the generation of tempering phenomenon.
In order to make those skilled in the art person understand the present invention program better, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Please refer to Fig. 2 and Fig. 3, Fig. 2 is the view of the switching mechanism disclosed in the embodiment of the present invention when shutoff burner, and Fig. 3 is the view of switching device when open burner disclosed in the embodiment of the present invention.
In the anti-backfire gas-cooker that the embodiment of the present invention provides, comprise the nozzle, burner 8 and the burner that connect successively, in addition, also comprise the switching mechanism be arranged in burner 8, this switching mechanism can shutoff and the blast tube in open burner 8.
When closing gas-cooker, the blast tube in this switching mechanism shutoff burner 8 can be made simultaneously, because this switching mechanism is arranged in burner 8, and burner 8 and burner are directly connected, this greatly reduces with regard to making the gas quantity remained, the probability that the mixing ratio of combustion gas and air is in explosion limit reduces greatly, flame can only by the small part fuel gas buring stayed in burner 8 and burner totally, and direction propagation in burner 8 or farther can not be continued, avoid the flame-out noise even explosive sound continued occurred because the flame propagation time is long, the parts of available protecting gas-cooker are without prejudice.
Certainly, those skilled in the art it is easily understood that, when closing gas-cooker, can also first close the switching mechanism be arranged in burner 8, make the blast tube in switching mechanism shutoff burner 8, and then close the valve assembly of gas-cooker, this kind of using method can avoid the generation of the tempering phenomenon when gas-cooker is closed equally.
As shown in Figures 1 and 2, disclose a kind of specific implementation form of switching mechanism in the embodiment of the present invention, in this embodiment, switching mechanism specifically comprises:
Back shaft 1, back shaft 1 is fixed with burner 8 after installing, and along the radial arrangement of burner 8;
First blade 2 and the second blade 3, first blade 2 and the second blade 3 all hinged with back shaft 1, and the first blade 2 and the second blade 3 are separately positioned on the both sides of back shaft 1, when the first blade 2 and the second blade 3 launch (angle namely between two blades is 180 °), the first blade 2 and the second blade 3 are configured for the plugging plate of the blast tube in shutoff burner 8; When the first blade 2 and the second blade 3 fit (angle namely between two blades is 0 °) completely, the opening completely of the blast tube in burner 8.When the angle of the first blade 2 and the second blade 3 is between 0 ° and 180 °, the shutoff can carrying out in various degree to the blast tube in burner 8;
Can along the drive rod 4 moved axially of burner 8;
First connecting rod 5, one end of first connecting rod 5 and the end of drive rod 4 hinged, the other end and the first blade 2 hinged;
Second connecting rod 6, one end of second connecting rod 6 and the end of drive rod 4 hinged, the other end and the second blade 3 hinged.
The axially-movable of drive rod 4 will be passed to the first blade 2 and the second blade 3, first blade 2 and the second blade 3 by first connecting rod 5 and second connecting rod 6 and rotate around back shaft 1, thus realize shutoff and the opening of the blast tube in burner 8.
Be understandable that, first blade 2 and the second blade 3 can be symmetrical arranged and also can be asymmetric setting, in order to the convenience on producing and designing, the first blade 2 in the present embodiment and the second blade 3 are about back shaft 1 symmetry, and first connecting rod 5 and second connecting rod 6 pass through same jointed shaft and drive rod 4 is hinged.
Not hard to imagine, drive rod 4 can stretch out the outside of burner 8 when designing, and for this construction of switch of user's manual operation, but needs to ensure to have strict movable sealing between drive rod 4 and burner 8.For gas-cooker, this kind of obvious production cost of mode and technical difficulty higher, simultaneously also convenient not for user; The present embodiment optimizes the technical scheme provided in above-described embodiment further for this reason, anti-backfire gas-cooker disclosed in the present embodiment also comprises the drive motors 10 that output shaft is positioned at burner 8, as as shown in Fig. 2 to Fig. 4, and the output shaft of drive motors 10 is also provided with driven wheel 7, and drive rod 4 is the tooth bar with driven wheel 7 engaged transmission.
The rotary motion of the output shaft of drive motors 10 is converted into the rectilinear motion of drive rod 4 by tooth bar, thus drives the first blade 2 and the second blade 3 to move.Control the motion forward or backward that drive motors 10 forward or reverse can realize drive rod 4.
Be described above a kind of specific implementation form of switching mechanism, it will be appreciated by persons skilled in the art that can the switching mechanism of shutoff burner multiple in addition, such as venetian blind type switch, realizes the opening and closing of burner by the rotation of shutter.Due to the extensive use of venetian blind type switch, as the shutter control cock at air-conditioner air outlet place, the shutter control cock etc. at vehicle air conditioning outlet place, therefore no longer repeats venetian blind type switch in the present embodiment.
Please refer to Fig. 5 and Fig. 6, in order to optimize the technical scheme in above-described embodiment further, also comprising in the present embodiment:
Be arranged on the runner 14 in the rotating shaft 13 of gas stove valve assembly;
Be arranged in gas stove valve assembly, and the pressure sensor 15 that can contact with runner 14, when gas stove valve assembly is opened, runner 14 and pressure sensor 15 depart from; When gas stove valve assembly is closed, runner 14 contacts with pressure sensor 15, and when runner 14 departs from pressure sensor 15, pressure sensor 15 is in not subjected to pressure state, and when runner 14 contacts with pressure sensor 15, pressure sensor 15 is in pressured state;
Controller, when pressure sensor 15 is in not subjected to pressure state, controller controls drive motors 10 and rotates, and makes drive rod 4 drive described first blade 2 and described second blade 3 to fit (namely the angle of the first blade and the second blade is 0 °); When pressure sensor 15 is in pressured state, controller controls drive motors 10 counter-rotation, and makes drive rod 4 drive described first blade 2 and described second blade 3 to launch (namely the angle of the first blade and the second blade is 180 °).
Visible, in the present embodiment, the switching mechanism in burner 8 achieves the interlock with gas stove valve assembly, namely when gas-cooker is closed, switching mechanism can cut out rapidly the blast tube in burner 8, and when gas-cooker is opened, switching mechanism also can open rapidly the blast tube in burner 8.This not only simplifies the operating process of user, achieve the automatic control of switching mechanism, but also further increase the effect that gas-cooker prevents tempering.
Certainly, also can be designed as: when gas stove valve assembly is opened, runner 14 contacts with pressure sensor 15, when gas stove valve assembly is closed, runner 14 and pressure sensor 15 depart from; Accordingly, when pressure sensor 15 is in pressured state, controller controls drive motors 10 and rotates, and makes drive rod 4 drive described first blade 2 and described second blade 3 to fit; When pressure sensor 15 is in not subjected to pressure state, controller controls drive motors 10 counter-rotation, and makes drive rod 4 drive the first blade 2 and the second blade 3 to launch.
As shown in Figure 4, burner 8 disclosed in the present embodiment comprises the first half be connected with burner, and with nozzle be connected latter half of, and first half is connected by bolt 12 with latter half of, in order to ensure first half and latter half of between sealing effectiveness, first half and latter half of between be also provided with sealing ring 11.
Burner 8 comprises the multiple sub-burner be arranged side by side, and as in Fig. 2 to Fig. 4, specifically comprises two sub-burners, and is provided with switching mechanism disclosed in above-described embodiment in every sub-burner.
Above anti-backfire gas-cooker provided by the present invention is described in detail.Apply specific case herein to set forth principle of the present invention and embodiment, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improve and modify and also fall in the protection domain of the claims in the present invention.
Claims (8)
1. an anti-backfire gas-cooker, comprise the nozzle, burner (8) and the burner that connect successively, it is characterized in that, also comprise and being arranged in described burner (8), and can the switching mechanism of blast tube in shutoff and open described burner (8).
2. anti-backfire gas-cooker according to claim 1, is characterized in that, described switching mechanism comprises:
Along the radial arrangement of described burner (8), and the back shaft (1) fixing with described burner (8);
First blade (2) hinged with described back shaft (1) and the second blade (3), be configured for the plugging plate of the blast tube in burner described in shutoff (8) after described first blade (2) and the second blade (3) launch; Blast tube when described first blade (2) and the second blade (3) laminating in completely open described burner (8);
The drive rod (4) that can move axially along described burner (8);
One end and described drive rod (4) hinged, the other end and the hinged first connecting rod (5) of described first blade (2);
One end and described drive rod (4) hinged, the other end and the hinged second connecting rod (6) of described second blade (3).
3. anti-backfire gas-cooker according to claim 2, it is characterized in that, described first blade (2) and described second blade (3) are symmetrical about described bolster (1), and described first connecting rod (5) and described second connecting rod (6) by same jointed shaft and described drive rod (4) hinged.
4. anti-backfire gas-cooker according to claim 3, it is characterized in that, also comprise the drive motors (10) that output shaft is positioned at described burner (8), the output shaft of described drive motors (10) is provided with driven wheel (7), described drive rod (4) is the tooth bar with described driven wheel (7) engaged transmission.
5. anti-backfire gas-cooker according to claim 4, is characterized in that, also comprise:
Be arranged on the runner (14) in the rotating shaft (13) of gas stove valve assembly;
Be arranged in gas stove valve assembly, and the pressure sensor (15) that can contact with described runner (14), when described gas stove valve assembly is opened, described runner (14) and described pressure sensor (15) depart from; When described gas stove valve assembly is closed, described runner (14) contacts with described pressure sensor (15);
Controller, when described pressure sensor (15) is in not subjected to pressure state, described controller controls described drive motors (10) and rotates, and makes described drive rod (4) drive described first blade (2) and described second blade (3) laminating; When described pressure sensor (15) is in pressured state, described controller controls described drive motors (10) counter-rotation, and makes described drive rod (4) drive described first blade (2) and described second blade (3) to launch.
6. anti-backfire gas-cooker according to claim 4, is characterized in that, also comprise:
Be arranged on the runner (14) in the rotating shaft (13) of gas stove valve assembly;
Be arranged in gas stove valve assembly, and the pressure sensor (15) that can contact with described runner (14), when described gas stove valve assembly is opened, described runner (14) contacts with described pressure sensor (15); When described gas stove valve assembly is closed, described runner (14) and described pressure sensor (15) depart from;
Controller, when described pressure sensor (15) is in pressured state, described controller controls described drive motors (10) and rotates, and makes described drive rod (4) drive described first blade (2) and described second blade (3) laminating; When described pressure sensor (15) is in not subjected to pressure state, described controller controls described drive motors (10) counter-rotation, and makes described drive rod (4) drive described first blade (2) and described second blade (3) to launch.
7. anti-backfire gas-cooker according to claim 1, is characterized in that, described burner (8) comprises the first half be connected with described burner, and with described nozzle be connected latter half of, and described first half is connected with described latter half of bolt.
8. the anti-backfire gas-cooker according to claim 1-7 any one, is characterized in that, described burner (8) comprises the multiple sub-burner be arranged side by side, and is provided with described switching mechanism in sub-burner described in any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510420643.6A CN104949165B (en) | 2015-07-16 | 2015-07-16 | A kind of anti-backfire gas-cooker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510420643.6A CN104949165B (en) | 2015-07-16 | 2015-07-16 | A kind of anti-backfire gas-cooker |
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| Publication Number | Publication Date |
|---|---|
| CN104949165A true CN104949165A (en) | 2015-09-30 |
| CN104949165B CN104949165B (en) | 2018-10-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510420643.6A Active CN104949165B (en) | 2015-07-16 | 2015-07-16 | A kind of anti-backfire gas-cooker |
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| CN102913973A (en) * | 2012-10-30 | 2013-02-06 | 宁波方太厨具有限公司 | Range hood outlet housing capable of assisting in quickly opening valve plates |
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| Publication number | Publication date |
|---|---|
| CN104949165B (en) | 2018-10-19 |
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