CN2807026Y - Fire return protector for gas range - Google Patents
Fire return protector for gas range Download PDFInfo
- Publication number
- CN2807026Y CN2807026Y CN 200520051326 CN200520051326U CN2807026Y CN 2807026 Y CN2807026 Y CN 2807026Y CN 200520051326 CN200520051326 CN 200520051326 CN 200520051326 U CN200520051326 U CN 200520051326U CN 2807026 Y CN2807026 Y CN 2807026Y
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- backfire
- ranges
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- model
- tempering
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Abstract
The utility model relates to a backfire protector for gas ranges. The utility model is characterized in that a backfire temperature control switch is additionally arranged and is connected in series between a thermocouple and an electromagnetic valve of the backfire protector of a gas range; the backfire temperature control switch is fixedly arranged on a baffle plate which is fixedly arranged on the end part of a jet leading pipe. The utility model has the advantages of simple structure, easy installation, safe use and reliable backfire protection action. The utility model can reliable protect the use safety of ranges, ranges can not be damaged by backfire, the utility model effectively avoids the crack of a glass panel of ranges and the scorch of a stainless steel panel and effectively prevents the burning and the damage of other parts of ranges caused by backfire simultaneously. The utility model is suitable to be arranged and used in gas ranges which need flameout protection and backfire protection simultaneously. The utility model is suitable for ranges with flameout protectors especially.
Description
Affiliated technical field
The utility model relates to a kind of stove of gaseous fuel or the safety device of kitchen range, particularly a kind of gas range flashback protection device.
Background technology
Gas-cooker in use; because a variety of causes; tempering phenomenon appears in Shi Changhui; cause the temperature of stove body to raise; can generation produce the face glass explosion because of the rising of range panel temperature is excessive; stainless steel faceplate burns black, and kitchen range interior section parts burn out, and operator's hand also may be scalded because of contact high temperature range panel.Chinese patent application number: 01215786.4 and 01215786.4 discloses the technical scheme of two tempering protective devices respectively; all being based on increases thermocouple and the corresponding electronic control circuit of gathering the tempering signal; induction tunnel leans on entrance point inner face gas transmission tube chamber and the thermocouple of gathering the tempering signal all installs into; thereby structure seems complicated; be not easy to make; there is Yin Gaowen in the cost height and unreliable factor that electronic circuit control was lost efficacy.The open gas range flashback protection device of Chinese patent application number: 200420004073.X increases a thermocouple of gathering the tempering signal too; also be installed on induction tunnel near mouthful gas transmission tube chamber of end inner face; it is complicated that structure also shows; and use the comparison of two thermocouple signals of telecommunication and offset, cause electromagnet not worked.Because numerous factors all may produce two thermocouple electromotive force and differ in size, and are difficult to cancel out each other, the line solenoid valve loop current is non-vanishing, and magnetic valve can not reset, and causes protective device to lose efficacy.
Summary of the invention
The purpose of this utility model provides a kind of gas kitchen ranges can in time close source of the gas when tempering takes place, stop tempering, simple in structure, service-strong tempering protective device.Promptly on the basis of the flame-out protection device of former kitchen range, install a tempering attemperating unit additional, substitute electric signal with mechanically actuated and relatively control at the line place of former thermocouple and magnetic valve.
The utility model is to be realized by following technical scheme: the magnetic valve of the flame-out protection device of gas kitchen ranges connects thermocouple through the lead electricity; the tempering temperature detect switch (TDS) through lead and lead respectively electricity connect thermocouple and magnetic valve; the tempering temperature detect switch (TDS) is packed in the baffle plate place, and baffle plate is packed in the induction tunnel end.The structure of tempering temperature detect switch (TDS) is in case top the bimetal leaf cover plate to be housed, inner chamber is equipped with stem stem, the side of housing is equipped with two lug plates that disconnect mutually respectively, the brace of a side is connected with shell fragment therein, shell fragment has the contact at the correspondence position with the opposite side brace, and shell fragment abuts against the stem stem lower end.
The present invention has simple in structure, and is easy for installation, safe and reliable, tempering protection reliable in action.Producing the induction tunnel excessive temperature when utilizing the kitchen range tempering raises; heat is conducted to the bimetal leaf cover plate of baffle plate and tempering temperature detect switch (TDS); cover plate produces distortion and the stem stem that promotes control valve moves down; contact and lug plate are disengaged; cut off the electric current of flame-out protection device, make the magnetic valve outage, magnetic valve recovers former normal condition; cut off the control valve combustion gas and flow into, stop tempering.Owing to be mechanical action, it is very reliable to cut off the source of the gas action during tempering.Energy reliable protection kitchen range are safe in utilization, and kitchen range can be because of tempering be damaged, and it is black effectively to avoid blast of kitchen range face glass and stainless steel faceplate to burn.Also effectively prevent to cause the scaling loss of other parts of kitchen range simultaneously, needing simultaneously to be suitable for the gas kitchen ranges safe handling of blowout protection and tempering protection, be particularly suitable for having the kitchen range use of flame-out protection device because of tempering.
Description of drawings
Fig. 1 gas range flashback protection device structural representation
Fig. 2 tempering temperature detect switch (TDS) structural representation
The specific embodiment
This gas range flashback protection device (see figure 1): be in the flame-out protection device of former gas-cooker, to install a tempering temperature detect switch (TDS) 8 and baffle plate 9 additional; have the gas-cooker of blowout protection and tempering protection only to have only one to be used for thermocouple 7 and magnetic valve 2 that blowout protection is gathered signal simultaneously, promptly tempering temperature detect switch (TDS) 8 is equipped with in the electricity series connection between thermocouple 7 and magnetic valve 2.
The structure (see figure 2) of tempering temperature detect switch (TDS) 8: be disc bimetallic cover plate 15 to be housed at housing 27 tops, inner chamber is equipped with stem stem 26, the side of housing 27 is equipped with two lug plate 24 and the lug plates 25 that disconnect mutually respectively, wherein the lug plate 24 of a side is connected with shell fragment 21, corresponding to the position of lug plate 24 contact 20 is arranged at shell fragment 21, shell fragment 21 leans in stem stem 26 lower ends.At this moment, lug plate 24 and lug plate 25 electrically contact through the contact 20 of shell fragment 21.Because lead 22 two ends are electrically connected connecting line 24 and thermocouple 7 respectively, lead 23 two ends are electrically connected lug plate 25 and magnetic valve 2 respectively, this moment from thermocouple 7 through lead 22, brace 24, shell fragment 21, contact 20, lug plate 25 and lead 23 electricity connect magnetic valve 2, and electric line is connected.Stem stem 26 upper ends lean disc bimetal leaf cover plate 15 because of the elastic force effect that spring 21 upwards pushes up.
Tempering temperature detect switch (TDS) 8 is packed in baffle plate 9 places.The upper end bimetal leaf cover plate 15 of tempering temperature detect switch (TDS) 8 is near baffle plate 9.Baffle plate 9 is packed in duration and degree of heating induction tunnel 5 inlet end of gas-cooker.The main effect of baffle plate 9 is to make the tempering temperature detect switch (TDS) be installed in the relevant position that as far as possible produces the tempering burning near induction tunnel 5, so that the high temperature signal when gathering tempering, another effect is to intercept that back fire flame may directly be burnt and the bimetal leaf cover plate 15 of tempering temperature detect switch (TDS) 8, and bimetal leaf is not damaged.Utilize the disc bimetal leaf cover plate 15 of the heat of high temperature of baffle plate 9 conduction tempering generations to tempering temperature detect switch (TDS) 8.When not producing tempering, be electric connection between thermocouple 7 and the magnetic valve 2.
The course of work (see figure 1) of tempering protective device: tempering temperature detect switch (TDS) 8 is packed in induction tunnel 5 ends through baffle plate 9; tempering temperature detect switch (TDS) 8 is respectively through shell fragment 21; brace 24 and lead 22 electricity connect thermocouple 7 and lug plate 25; lead 23 electricity connect magnetic valve 2 and do not produce tempering; when the cooking stove burning is in normal condition; the contact 20 of shell fragment 21 leans brace 25; 2 circuit are connected from thermocouple 7 to magnetic valve; when the flap 10 that presses the button 16 compression springs 18 and back down control valve 1 is opened hole 17; the combustion gas that the electric spark of igniter generation is simultaneously lighted burner for gas stove, the fire hole of little fire lid 6 fire burns.The sensible heat portion of thermocouple 7 is heated, and the temperature difference appears in two contacts, produces thermocurrent, and the electric current that produces up to thermocouple 7 can encourage the iron core 12 of electromagnet and armature 11 to keep attracting state, and release button 16 again, the work of combustion gas tool normal combustion.To be combustion gas enter valve insertion from the air admission hole 13 of control valve 1 to the fuel gas flow situation of this moment, flow to nozzle 4 through opened hole 17 through tube connector 3, sprays in induction tunnel 5 chambeies, and gas-flow to little fire lid 6 is flowed out by fire hole and lighted.Abnormal conditions in use appear as gas kitchen ranges; cause tempering temperature detect switch (TDS) 8 to be heated as tempering; back fire flame is in the inner chamber burning of nozzle 4 and induction tunnel 5; induction tunnel 5 produces higher temperature; this heat of high temperature by baffle plate 9 be passed to baffle plate 9 near 15 temperature distortions of disc bimetal leaf; stem stem 26 is moved on the top downwards; stem stem 26 pushes up shell fragment 21 downwards; contact 20 and brace 24 and brace 26 are disengaged; magnetic valve 2 outages, the iron core 12 of armature 11 and electromagnet 14 breaks away from disconnection, under the elastic force effect of spring 19; flap 10 closed blind holes 17; cut off fuel gas path, nozzle 4 no combustion gas ejections, tempering is extinguished automatically; play overtemperature prote, particularly tempering protective effect.
After the tempering factor was got rid of, burner can reactivate.
Claims (2)
1, gas range flashback protection device; the magnetic valve of the flame-out protection device of gas kitchen ranges connects thermocouple through the lead electricity; it is characterized in that tempering temperature detect switch (TDS) (8) through lead (22) and lead (23) respectively electricity connect thermocouple (7) and magnetic valve (2); tempering temperature detect switch (TDS) (8) is packed in baffle plate (9) and locates, and baffle plate (9) is packed in induction tunnel (5) end.
2, according to the described gas range flashback protection device of claim 1; the structure that it is characterized in that tempering temperature detect switch (TDS) (8) is at housing (27) top bimetal leaf cover plate (15) to be housed; inner chamber is equipped with stem stem (26); the side of housing (27) is equipped with two lug plate (24) and (25) that disconnect mutually respectively; wherein the lug plate of a side (24) is connected with shell fragment (21); shell fragment (21) has contact (20) at the correspondence position with the lug plate (25) of opposite side, and shell fragment (21) abuts against stem stem (26) lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520051326 CN2807026Y (en) | 2005-07-06 | 2005-07-06 | Fire return protector for gas range |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520051326 CN2807026Y (en) | 2005-07-06 | 2005-07-06 | Fire return protector for gas range |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2807026Y true CN2807026Y (en) | 2006-08-16 |
Family
ID=36921326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520051326 Expired - Lifetime CN2807026Y (en) | 2005-07-06 | 2005-07-06 | Fire return protector for gas range |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2807026Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110345521A (en) * | 2019-07-31 | 2019-10-18 | 华帝股份有限公司 | Temperature sensor for dry-burning-proof gas stove and gas stove |
-
2005
- 2005-07-06 CN CN 200520051326 patent/CN2807026Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110345521A (en) * | 2019-07-31 | 2019-10-18 | 华帝股份有限公司 | Temperature sensor for dry-burning-proof gas stove and gas stove |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: XUNDA TECHNOLOGY GROUP CO. Free format text: FORMER OWNER: XUNDA GROUP CO., LTD., HUNAN PROV. Effective date: 20080328 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080328 Address after: Hunan province Xiangtan city Schindler Technology Park, Yuetang District postcode: 411102 Patentee after: Xunda Science & Technology Group Co., Ltd. Address before: Hunan province Xiangtan city Schindler Technology Park, Yuetang District postcode: 411102 Patentee before: Xunda Group Co., Ltd., Hu'nan Prov. |
|
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20090318 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |