CN2527888Y

CN2527888Y - Flame-out safety protection device for gas range

Info

Publication number: CN2527888Y
Application number: CN 01277124
Authority: CN
Inventors: 孙伟宝
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-12-26
Filing date: 2001-12-26
Publication date: 2002-12-25
Anticipated expiration: 2011-12-26

Abstract

Disclosed is a gas range flameout security protecting apparatus, which comprises a gas switch fixedly connected with a shell of a gas cooker; wherein, the gas switch shell contains an electromagnetic valve inside to form an integrated structure. The utility model is characterized in that a corrugated separating sleeve (6) is nested on the outer surface of a valve core (3) of the electromagnetic valve (14) to separate the gas from the valve core (3); one end of the corrugated separating sleeve (6) is fixedly connected with a valve cover (4); the other end of the corrugated separating sleeve (6) is connected with a valve body of the electromagnetic valve (14) through an inner positioning apparatus. The utility model has the advantages that the surface of the valve core (3) of the electromagnetic valve (14) is not easily rusted and fallen off. Thus, the utility model is long in service life and reliable in working.

Description

A kind of gas combustion range flameout safety guard

Technical field

The utility model belongs to the gas kitchen ranges safety device, more particularly, is a kind of gas safety device that can automatically gas supply be cut off under the flame-out situation that runs into when gas kitchen ranges.

Background technology

The gas safety device that existing gas kitchen ranges has been furnished with (No. 92200875.2, Chinese utility model) as shown in Figure 4, this device runs into that grill pan overflows or wind and can cut off gas supply automatically under the situation that causes stopping working at kitchen range, and its general structure is formed by magnetic valve with the burnt gas switch valve two large divisions that it is sealed.But as seen from Fig. 4; combustion gas is that the movement parts spool of direct and magnetic valve is contacted in the burnt gas switch valve; and many moisture content and other harmful element are contained in regular meeting in combustion gas; they cause corrosion, peel off for the working surface of magnetic valve in long-term the use; can cause that action is malfunctioning; influence the dependability and the security of magnetic valve, reduce service life.These factors cause existing in the prior art defective and deficiency.

Summary of the invention

In order to solve the shortcoming that exists in the above-mentioned prior art, the utility model provides a kind of scheme that is with flexible radiation fins seal in the valve core of the electromagnetic valve outside to completely cut off combustion gas and valve core of the electromagnetic valve contacting each other.

Scheme of the present utility model is: a kind of gas combustion range flameout safety guard; it includes one and fixedlys connected installation all-in-one-piece burnt gas switch with the kitchen range shell; housing at described burnt gas switch contains a magnetic valve in it; its housing of this burnt gas switch and described magnetic valve all are oval tubular; both mutual sheathing become as a whole; extend axially layout; described housing is provided with gas inlet and gas outlet; be provided with the tabula layer of a band perforate at described housing inner chamber; described tabula layer is separated into two cavity volumes with the burnt gas switch housing; one is the main chamber that holds magnetic valve; another is the end chamber; with described tabula layer is the boundary, and described air inlet and gas outlet are respectively in its both sides, and air inlet is passed through in combustion gas; perforate and gas outlet form path.In the perforate of described tabula layer, be stamped valve gap, the state that covers that is the elasticity crimping, the gas ignition push button switch is installed on the termination of described housing, in the bacterium bar portion of described snapper switch, be with the compression spring, described compression spring is between the outer face of described push button switch bacterium bar portion and housing, also be provided with a pair of electric contact of often opening at this position, describedly often open the break-make that electric contact forms the current path of pulse fire maker, nearby be provided with the thermocouple of a perception ignition dish temperature at gas-cooker ignition dish.In addition, add cover in the neighboring of spool to reach the purpose of isolation, described seal isolation cover is a radiation fins, two ends at valve core of the electromagnetic valve, fixedly valve gap, an other end Motionless electromagnetic armature, the interior location structure of spool on the termination of magnetic valve cylindrical shell and cylindrical shell constitutes can lead and slide fixing, and the outside of the spool in described between location structure and the valve gap is with a corrugated seal isolation cover, the coaxial again compression spring that is with in the outside of described separation sleeve.

Location structure includes the cylindrical guide cylinder of a central zone in so-called, at the end face of electromagnetic valve body, does not exceed the guide cylinder bead of described electromagnetic valve body.The fixedlying connected of the interior location structure of described corrugated seal isolation cover and described magnetic valve be by spring-leaf retainer and magnetic valve housing end face amplexiform mutually that clamping realizes, the outer rotating edge of described separation sleeve is sandwiched between described spring-leaf retainer and the described end face.Described corrugated flexible sealing separation sleeve and described valve gap fixedly connected be by described separation sleeve one end ring with realize the cooperating fixedly of second neck of described spool.Described valve gap is fixedly to realize by the chimeric of first neck with described spool, described armature is to be installed on the spool by the 3rd neck with described spool, described the 3rd neck is installed on the spool, and described the 3rd neck is to be mutually combined by a frustum and a removable lining plectane to form.Its end bead opposite with interior location structure of described electromagnetic valve body has prominent ring in the circle, fastens mutually with indent ring on the magnetic valve substrate to form a fixed connection.

The utility model has the advantages that: because spool and the lead hole face that amplexiforms each other can not influenced by the moisture content in the combustion gas or harmful assorted gas, be difficult for getting rusty or peeling off, the service life of burnt gas switch valve and functional reliability improve greatly comparatively speaking.Secondly it is applicable to the dimensions that is installed in current national standard burnt gas switch.

Description of drawings

Fig. 1 is the whole cut-away view of the utility model embodiment;

Fig. 2 is the valve core of the electromagnetic valve of Fig. 1 embodiment and the decomposing state figure of electromagnetic valve body;

Fig. 3 is the stereogram of the ripple separation sleeve of Fig. 1 embodiment;

Fig. 4 is the comparison diagram of reflection prior art.

The specific embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

From Fig. 1 as seen, burnt gas switch 1 of the present utility model is one and fixedlys connected of being integral with kitchen range shell (not shown) and include burnt gas switch housing 2, be inclusive in the described housing 2 the total adult that mutual sheathing forms.After this total adult internal combustion air cock housing 2 and electromagnetic valve body 10 are nestable mutually, prolong and extend axially.Described burnt gas switch housing 2 is provided with gas inlet 23 and gas outlet 33, the chamber is provided with the tabula layer 19 of a band perforate within it, and described tabula layer 19 is separated into two chambers that can communicate and can be cut off with the chamber of described burnt gas switch housing 2.One is the main chamber that holds magnetic valve, and another is the end chamber 36 that is positioned at burnt gas switch housing 2 one ends.With described tabula layer 19 is the boundary, and described air inlet 23 is positioned on the sidewall of described main chamber, and described gas outlet then is positioned on the sidewall of described end chamber.

On the termination of described burnt gas switch housing 2, be provided with a push button switch 17, described snapper switch is bacterium shape, its bizet 37 is in the outside of housing 2, its bar portion 39 is inserted on the end face 40 of described housing 2 by pilot hole, be with one in the described bar portion 39 and press and turn round stage clip 38, described pressing turned round stage clip 38 and is on the position between described bizet 37 medial surfaces and described housing 2 end faces 40 outsides.Be provided with one in addition and often open electric contact 41 on this position, it is used for controlling the work of electronic impulse fire maker.Nearby be provided with the thermocouple 15 of a perception ignition dish temperature at gas-cooker ignition dish 16, when described thermocouple 15 perceives ignition dish 16 when being in the burner and posing, the electromotive force of its generation can make the mutual adhesive of soft iron of electricity 11 with the solenoid 13 of magnetic valve, this moment, the burnt gas switch valve was in the state that makes fuel gas path unimpeded, and kitchen range are in the burner and pose.And after the fire of ignition dish 16 is extinguished, because the ignition dish turns cold, thermocouple does not just have electromotive force to produce, like this, just do not have electric current to pass through in the solenoid 13, lose electromagnetic attraction between the iron core 12 of solenoid and the armature 11, under the elastic force effect of valve core spring 7, valve gap 4 is towards the direction motion of valve-off, till the perforate 34 that covers on the described tabula layer 19.At this moment, gas supply is in the state of being cut off.

In order to protect spool 3, itself and combustion gas are isolated, the utility model adds cover in spool 3 outsides, is a kind of telescopic radiation fins.Described valve core of the electromagnetic valve 3 is cylindricality, the neck that has three sections diameters to differ on it.The two ends of described spool 3, one fixes with described valve gap 4, and the armature 11 of other end and described magnetic valve fixes.

Claims

1. gas combustion range flameout safety guard; it includes one and fixedlys connected installation all-in-one-piece burnt gas switch (1) with the kitchen range shell; housing (2) at described burnt gas switch contains a magnetic valve in it; its housing of described burnt gas switch (2) all is oval tubular with described magnetic valve (14); both mutual sheathing become as a whole; extend axially layout; described housing (2) is provided with gas inlet (23) and gas outlet (33); be provided with the tabula layer (19) of a band perforate at described housing (2) inner chamber; described tabula layer (19) is separated into two cavity volumes with burnt gas switch housing (2); one is the main chamber (35) that holds magnetic valve (14); another is an end chamber (36); with described tabula layer (19) is the boundary; described air inlet (23) and gas outlet (33) are respectively in its both sides, and combustion gas is by air inlet (23); perforate (34) and gas outlet (33) form path.In described tabula layer (19) perforate (34), be stamped valve gap (4), the state that covers that is the elasticity crimping, gas ignition push button switch (17) is installed on the termination of described housing (2), in the bacterium bar portion (37) of described snapper switch (17), be with compression spring (38), described compression spring (38) is between the outer face (40) of described push button switch bacterium bar portion (39) and housing (2), also be provided with a pair of electric contact (41) of often opening at this position, the described break-make of often opening the current path of electric contact (41) formation pulse fire maker (28), nearby be provided with the thermocouple (15) of a perception ignition dish temperature at gas-cooker ignition dish (16), it is characterized in that: add cover to reach the purpose of isolation in the neighboring of spool (3), described seal isolation cover is a radiation fins, the two ends of described valve core of the electromagnetic valve (3), a fixing valve gap (4), other end Motionless electromagnetic armature (11), the location structure of the described cylindrical shell of spool (3) (10) of the above constitutes can lead and slide fixing in the termination of magnetic valve cylindrical shell, the outside of the spool (3) between described location structure and described valve gap (4) is with a corrugated seal isolation cover (6), the coaxial again compression spring (7) that is with in the outside of described separation sleeve (6).

2. gas combustion range flameout safety guard according to claim 1; it is characterized in that: described location structure includes the cylindrical guide cylinder of a central zone (42), and the end face (43) of electromagnetic valve body (10) does not exceed the cylinder bead of described electromagnetic valve body (10).

3. gas combustion range flameout safety guard according to claim 1; it is characterized in that: described corrugated seal isolation cover (6) is to clamp with amplexiforming mutually of magnetic valve housing end face (43) by spring-leaf retainer (8) to realize that the outer rotating edge of described separation sleeve (32) is sandwiched between described spring-leaf retainer (8) and the described end face (43) with the fixedlying connected of interior location structure of described magnetic valve (26).

4. gas combustion range flameout safety guard according to claim 1 is characterized in that: described corrugated flexible sealing separation sleeve (6) and described valve gap (4) fixedly connected be by described separation sleeve (6) one ends ring (31) with realize the cooperating fixedly of second neck (20) of described spool (3).

5. gas combustion range flameout safety guard according to claim 1 is characterized in that: described valve gap (4) be by with chimeric fixedly realization of first neck (44) of described spool (3).

6. gas combustion range flameout safety guard according to claim 1; it is characterized in that: described armature (11) is to be installed on the spool (3) by the 3rd neck with described spool (3); described the 3rd neck is installed on the spool (3), and described the 3rd neck (45) is to be mutually combined by a frustum (45) and a removable lining plectane (46) to form.

7. gas combustion range flameout safety guard according to claim 1; it is characterized in that: its end bead opposite with interior location structure of the electromagnetic valve body (10) of described magnetic valve (26) has prominent ring (47) in the circle, forms a fixed connection with mutual fastening of the indent ring (49) on magnetic valve (14) substrate (48).