阅读说明：本技术 燃气旋塞阀及燃气灶 (Gas plug valve and gas stove ) 是由 任富佳 陈六明 颜运宇 陈涛 柯韬 于 2020-04-28 设计创作，主要内容包括：本发明提供了一种燃气旋塞阀及燃气灶,涉及灶具技术领域。该燃气旋塞阀包括阀体、阀芯和阀杆,阀体内设有阀腔,阀腔的侧部连通有内环通道和外环通道；阀芯转动嵌设于阀腔内,且阀芯内设有通气腔,通气腔的侧壁设有内环通气孔和外环通气孔；通气腔的内壁沿其周向设有环形凸台；阀杆自上向下插接于通气腔,阀杆设有隔挡件,阀杆下压时,隔挡件能够与环形凸台将通气腔隔挡为上腔室和下腔室,上腔室与下腔室可以通过泄压通道连通。该燃气灶包括燃烧器和上述燃气旋塞阀,外环通道与燃烧器的外环喷嘴连通,内环通道与内环喷嘴连通。该燃气旋塞阀点火时能够使燃烧器的内环火稳定点火,且需要使用外环火时的点火时间也较短,用户使用体验较好。(The invention provides a gas plug valve and a gas stove, and relates to the technical field of stoves. The gas plug valve comprises a valve body, a valve core and a valve rod, wherein a valve cavity is arranged in the valve body, and the side part of the valve cavity is communicated with an inner ring channel and an outer ring channel; the valve core is rotatably embedded in the valve cavity, a ventilation cavity is arranged in the valve core, and an inner ring ventilation hole and an outer ring ventilation hole are arranged on the side wall of the ventilation cavity; the inner wall of the ventilation cavity is provided with an annular boss along the circumferential direction; the valve rod is inserted into the ventilation cavity from top to bottom, the valve rod is provided with a blocking piece, when the valve rod is pressed down, the blocking piece can block the ventilation cavity into an upper cavity and a lower cavity through the annular boss, and the upper cavity and the lower cavity can be communicated through the pressure relief channel. The gas stove comprises a burner and the gas plug valve, wherein an outer ring channel is communicated with an outer ring nozzle of the burner, and an inner ring channel is communicated with an inner ring nozzle. This gas plug valve can make the stable ignition of inner ring fire of combustor when igniteing, and the ignition time when needing to use outer ring fire is also shorter, and the user uses and experiences better.)

1. A gas plug valve comprises a valve body (100), a valve core (200) and a valve rod (300), wherein a valve cavity (110) is arranged in the valve body (100), the side part of the valve cavity (110) is communicated with an inner ring channel (120) and an outer ring channel (130) positioned above the inner ring channel (120), and the bottom of the valve cavity (110) is communicated with an air inlet channel (140); the valve core (200) is rotatably embedded in the valve cavity (110), a vent cavity (210) communicated with the air inlet channel (140) is arranged in the valve core (200), and an inner ring vent hole (220) corresponding to the inner ring channel (120) and an outer ring vent hole (230) corresponding to the outer ring channel (130) are arranged on the side wall of the vent cavity (210);

the inner wall of the vent cavity (210) is provided with an annular boss (240) along the circumferential direction, and the annular boss (240) is positioned between the inner ring vent hole (220) and the outer ring vent hole (230); the valve rod (300) is inserted into the vent cavity (210) from top to bottom, the valve rod (300) is provided with a blocking piece, when the valve rod (300) is pressed down, the blocking piece and the annular boss (240) can jointly block the vent cavity (210) into an upper cavity (211) and a lower cavity (212), the vent cavity (210) is further provided with a pressure relief channel, and the upper cavity (211) and the lower cavity (212) can be communicated through the pressure relief channel.

2. The gas plug valve according to claim 1, characterized in that the pressure relief channel comprises a pressure relief hole (250) formed in a side wall of the vent cavity (210), and the pressure relief hole (250) corresponds to the inner ring channel (120);

and/or when the valve rod (300) is pressed downwards, a gap (260) is reserved between the blocking piece and the annular boss (240), and the gap (260) forms the pressure relief channel.

3. Gas plug valve according to claim 1 or 2, characterized in that the minimum flow area of the inner ring vent hole (220) is smaller than the minimum flow area of the inner ring channel (120).

4. The gas plug valve according to claim 3, characterized in that the inner ring channel (120) comprises an outer channel (121) and an inner channel (122), the inner channel (122) communicates between the valve chamber (110) and the outer channel (121), the flow area of the inner channel (122) is smaller than the flow area of the outer channel (121);

the inner ring vent hole (220) comprises an outer vent hole (221) and an inner vent hole (222), the inner vent hole (222) is communicated between the vent cavity (210) and the outer vent hole (221), the flow area of the inner vent hole (222) is smaller than that of the outer vent hole (221), and the outer vent hole (221) is matched with the inner channel (122).

5. The gas plug valve according to claim 1, characterized in that the pressure relief channel comprises a pressure relief hole (250) formed in a side wall of the vent cavity (210), and the pressure relief hole (250) corresponds to the inner ring channel (120); the blocking piece comprises a blocking boss (330) arranged along the circumferential direction of the valve rod (300), and the blocking boss (330) is matched with an inner ring hole (241) of the annular boss (240);

or the blocking piece comprises a first sealing ring (340) sleeved on the valve rod (300), and the outer diameter of the first sealing ring (340) is larger than the aperture of the inner hole (241) of the annular boss (240).

6. The gas plug valve according to claim 1 or 2, characterized in that the valve rod (300) is provided with a blocking boss (350) along the circumference thereof, the blocking boss (350) is positioned above the outer ring vent hole (230), and the blocking boss (350) is matched with the vent cavity (210).

7. The gas plug valve according to claim 6, characterized in that the outer side wall of the blocking boss (350) is provided with a first groove along the circumference thereof, and a second sealing ring (351) is embedded in the first groove;

and/or, shutoff boss (350) cover is located valve rod (300), the inside wall of shutoff boss (350) is equipped with the second recess, the embedded third sealing washer (352) that has of second recess.

8. The gas plug valve of claim 7, wherein the valve rod (300) comprises a rotation torsion bar (310) and a top rod (320) fixedly arranged at the bottom of the rotation torsion bar (310), and the blocking piece and the blocking boss (350) are both arranged on the top rod (320); ejector pin (320) activity cover is equipped with clamping ring (360), clamping ring (360) are located shutoff boss (350) top, just revolve the bottom of torsion bar (310) with be equipped with elastic component (370) between clamping ring (360).

9. A gas cooker comprising a burner and a gas plug valve according to any one of claims 1 to 8, wherein the injector of the burner comprises an outer ring nozzle and an inner ring nozzle, an outer ring channel (130) of the gas plug valve is communicated with the outer ring nozzle, and an inner ring channel (120) of the gas plug valve is communicated with the inner ring nozzle.

Technical Field

The invention relates to the technical field of cookers, in particular to a gas plug valve and a gas stove.

Background

The gas stove is widely applied to kitchen cooking, an external gas supply device is generally communicated with a gas plug valve of the gas stove, a user can open an electromagnetic valve of the gas plug valve and start an ignition assembly by pressing down a valve rod of the gas plug valve, the external gas supply device can supply gas into the gas plug valve, and the gas flows out through a fire cover and is ignited by the ignition assembly to spray flame; in addition, the user can adjust the air feed flow through rotatory valve rod, and then realizes the regulation to flame size.

Disclosure of Invention

The invention aims to provide a gas plug valve and a gas stove, and aims to solve the technical problems that internal ring fire is easy to extinguish and the ignition time is long when the gas plug valve is ignited in the prior art.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic structural diagram of a gas plug valve provided in an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of a gas plug valve with a barrier as a barrier boss according to an embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view of another cross-section of a barrier member of a gas plug valve according to an embodiment of the present invention;

FIG. 4 is a schematic cross-sectional view of a gas plug valve with a first sealing ring as a blocking member according to an embodiment of the present invention;

fig. 5 is a schematic cross-sectional view of a gas plug valve according to an embodiment of the present invention, in which a pressure relief channel is formed by a gap between a stopper and an annular boss.

Icon: 100-a valve body; 110-a valve cavity; 120-inner ring channel; 121-outer channel; 122-an inner channel; 123-a communication channel; 130-outer ring channel; 140-an intake passage; 200-a valve core; 210-a vent lumen; 211-an upper chamber; 212-a lower chamber; 220-inner ring vent; 221-outer vent; 222-an internal vent; 230-outer ring vent; 240-annular boss; 241-ring inner holes; 250-pressure relief holes; 260-gap; 300-a valve stem; 310-torsion bar rotation; 320-a mandril; 330-blocking boss; 340-a first sealing ring; 350-plugging the boss; 351-a second seal ring; 352-third sealing ring; 360-compression ring; 370-an elastic member; 380-check ring; 400-micro switch.

The embodiment provides a gas plug valve which comprises a valve body, a valve core and a valve rod, wherein a valve cavity is arranged in the valve body, the side part of the valve cavity is communicated with an inner ring channel and an outer ring channel positioned above the inner ring channel, and the bottom of the valve cavity is communicated with an air inlet channel; the valve core is rotatably embedded in the valve cavity, a vent cavity communicated with the air inlet channel is arranged in the valve core, and an inner ring vent hole corresponding to the inner ring channel and an outer ring vent hole corresponding to the outer ring channel are arranged on the side wall of the vent cavity;

the inner wall of the ventilation cavity is provided with an annular boss along the circumferential direction of the ventilation cavity, and the annular boss is positioned between the inner ring ventilation hole and the outer ring ventilation hole; the valve rod is inserted into the vent cavity from top to bottom, the valve rod is provided with a blocking piece, when the valve rod is pressed down, the blocking piece and the annular boss can jointly block the vent cavity into an upper cavity and a lower cavity, the vent cavity is further provided with a pressure relief channel, and the upper cavity can be communicated with the lower cavity through the pressure relief channel.

In an alternative embodiment, the pressure relief channel comprises a pressure relief hole formed in a sidewall of the vent cavity, and the pressure relief hole corresponds to the inner annular channel;

and/or when the valve rod is pressed downwards, a gap is reserved between the blocking piece and the annular boss, and the gap forms the pressure relief channel.

In an alternative embodiment, the minimum flow area of the inner ring vent is less than the minimum flow area of the inner ring channel.

In an alternative embodiment, the inner ring passage comprises an outer passage and an inner passage, the inner passage communicates between the valve chamber and the outer passage, and the flow area of the inner passage is smaller than that of the outer passage;

the inner ring vent holes comprise outer vent holes and inner vent holes, the inner vent holes are communicated between the vent cavity and the outer vent holes, the flow area of the inner vent holes is smaller than that of the outer vent holes, and the outer vent holes are matched with the inner channel.

In an alternative embodiment, the pressure relief channel comprises a pressure relief hole formed in a sidewall of the vent cavity, and the pressure relief hole corresponds to the inner annular channel; the blocking piece comprises a blocking boss arranged along the circumferential direction of the valve rod, and the blocking boss is matched with an inner hole of the annular boss;

or the blocking piece comprises a first sealing ring sleeved on the valve rod, and the outer diameter of the first sealing ring is larger than the aperture of the ring inner hole of the annular boss.

In an alternative embodiment, the valve rod is provided with a blocking boss along the circumferential direction thereof, the blocking boss is positioned above the outer ring vent hole, and the blocking boss is matched with the vent cavity.

In an optional embodiment, a first groove is formed in the outer side wall of the blocking boss along the circumferential direction of the blocking boss, and a second sealing ring is embedded in the first groove;

and/or, the shutoff boss cover is located the valve rod, the inside wall of shutoff boss is equipped with the second recess, the second recess is embedded to have the third sealing washer.

In an optional embodiment, the valve rod comprises a rotation torsion bar and an ejector rod fixedly arranged at the bottom of the rotation torsion bar, and the barrier member and the plugging boss are both arranged on the ejector rod; the ejector pin activity cover is equipped with the clamping ring, the clamping ring is located shutoff boss top, just the bottom of revolving the torsion bar with be equipped with the elastic component between the clamping ring.