CN210861101U

CN210861101U - Burner fire cover for gas stove

Info

Publication number: CN210861101U
Application number: CN201920717483.5U
Authority: CN
Inventors: 张波
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2019-05-19
Filing date: 2019-05-19
Publication date: 2020-06-26
Anticipated expiration: 2029-05-19

Abstract

The utility model relates to a combustor fire lid for gas-cooker, including fire lid body, this fire lid body has the gas mixing chamber, its characterized in that: the upper surface of the cyclic annular roof of fire lid body is formed with the biography firebox from outer rama to interior rama to the radial inward extension of center of fire lid body, and the outside opening of biography firebox is in outer rama, and the inboard opening of biography firebox is located on the interior rama, and open the bottom of biography firebox has the intercommunication the through-hole of air mixing chamber, wherein at least one through-hole are adapted with the bolster, and the bolster is including the gas inlet end with mixed gas chamber phase fluid intercommunication and the gas outlet end with biography firebox phase fluid intercommunication, and the bore that goes into the gas inlet end is less than the bore of gas outlet end compares with prior art, the utility model has the advantages of pass firebox for hiding the hidden fire groove structure in fire lid body, to the suitability reinforcing of aperture air door, also can guarantee to pass the fire performance under the great condition of air door aperture promptly.

Description

Burner fire cover for gas stove

Technical Field

The utility model relates to a burner of a gas cooker, in particular to a burner fire cover of a gas cooker.

Background

At present, most of traditional burner fire covers sold in the market are milled through a groove, namely a fire ignition groove is milled through the top of the fire cover body, and the burner fire cover is easy to deform due to the fact that the fire cover body is disconnected at the fire ignition groove, so that the fire ignition effect is influenced. For example, a similar fire transfer structure is disclosed in "gas furnace head with fire transfer device and flameout protection function" of chinese utility model patent No. 201220464214.0 (publication No. CN202813375U), wherein the outer ring flame ring is provided with a plurality of outer ring flame holes, and the outer ring flame right is further provided with an outer ring flame transfer device, the outer ring flame transfer device is composed of a boss arranged on the inner side wall of the outer ring flame ring, an outer ring flame transfer hole and an outer ring flame transfer groove arranged on the boss and the outer ring flame ring, the outer ring flame transfer hole is communicated with the outer ring flame transfer groove, the outer ring flame transfer hole and the outer ring flame transfer groove are communicated with one outer ring flame hole, thereby realizing rapid flame transfer; the fire transfer groove of the fire transfer structure is open, the fire transfer groove is linear, namely the fire transfer groove is exposed on the surface of the outer ring fire cover, the design of the design has a benefit that the supply of secondary air in the fire transfer groove is sufficient, the open fire transfer groove can ensure the supply of the secondary air during the flame combustion in the fire transfer groove, the flame combustion and the fire transfer are facilitated, the fire transfer is rapid, but the open fire transfer groove easily causes the blockage of the fire transfer groove, therefore, Chinese utility model patent ZL201420344358.1 (No. CN203980285U) discloses a hidden fire transfer channel without a pilot groove in the hidden burner fire cover, the fire transfer channel is provided with a plurality of fire transfer holes, the hidden fire transfer groove still has high requirements on the air door of a stove, after the air amount is large, the excessive air amount can cause the overlarge air flow rate, thereby causing the flame leaving or the fire escaping during the combustion, therefore, for the fire-transfer characteristics of the flame-stabilizing hidden fire-transfer groove, further improvement of the fire-transfer performance of the hidden fire-transfer groove is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a combustor fire cover for gas-cooker that can improve the stability of passing a fire of hidden biography fire structure is provided.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: this a combustor fire lid for gas-cooker, including the fire lid body, this fire lid body is including cyclic annular roof, from the vertical or slope downwardly extending's of the inboard edge of this cyclic annular roof inner wall and from the vertical or slope downwardly extending's of the outside edge of this cyclic annular roof outer ring wall, cyclic annular roof, inner ring wall and outer ring wall enclose jointly and become to mix the gas chamber, its characterized in that: the upper surface of the annular top wall of the fire cap body extends radially inwards from the outer annular wall to the inner annular wall towards the center of the fire cap body to form a fire transfer chamber, the outer side of the fire transfer chamber is opened on the outer annular wall, the inner side of the fire transfer chamber is opened on the inner annular wall, the bottom of the fire transfer chamber is provided with through holes communicated with the gas mixing cavity, at least one through hole is provided with a buffer piece in a matching mode, the buffer piece comprises an air inlet end and an air outlet end, the air inlet end is in fluid communication with the gas mixing cavity, and the caliber of the air inlet end is smaller than that of the air outlet end.

Furthermore, the through hole also comprises a first through hole positioned on the inner side of the ejector, an included angle α between the central line of the first through hole and the central line of the fire transfer chamber is an acute angle, and an included angle between the central line of the first through hole and the central line of the fire transfer chamber is an acute angle.

Because pass the fire room and hide in the internal anti-clogging performance that can improve the ignition hole of fire lid, nevertheless must solve simultaneously and pass the air quantity of fire room and reduce the insufficient problem of burning that brings, for this reason, the inboard opening top-down of passing the fire room inwards slopes gradually, first through-hole orientation pass the inboard opening of fire room. The design of the inner side opening of the fire transfer chamber with inclination can strengthen the suction effect on the outside air and improve the air supply speed; and first through-hole can supply the gas to the internal side opening towards inboard opening to improve the gas in passing the combustion gas concentration of the internal side opening of firehouse, stabilize the burning in passing the firehouse, in order to improve and pass the fire performance, in addition, this pass the inboard opening of firehouse more can adapt to the play fire form that has the inclination radian in the inner ring flame for the slope design, thereby ensure that the fire can pass to passing the firehouse from the inner ring.

In order to ensure that the fire in the fire transfer chamber can be smoothly transferred to the fire cover body, the fire cover body is provided with a fire transfer groove which is communicated with the outer side opening along the circumferential direction on the outer ring wall.

In order to ensure that the fire transfer groove has sufficient gas to ensure that the fire transfer chamber can transfer from the inner ring to the outer ring, preferably, the outer ring wall is further provided with an auxiliary gas replenishing hole which is adjacent to the fire transfer chamber and is independent of the fire transfer chamber, and the auxiliary gas replenishing hole is communicated with the fire transfer groove.

Furthermore, the inner circumferential surface of the outer ring wall of the fire cover body is provided with an inner step, the air inlet end of the auxiliary air supply hole is positioned on the first step surface above the inner step, and the air outlet end of the auxiliary air supply hole is intersected with the fire transfer groove.

In order to accelerate the primary air and the fuel gas in the gas mixing chamber to flow into the auxiliary gas supplementing hole more quickly, the auxiliary gas supplementing hole gradually inclines upwards from the air inlet end to the air outlet end from inside to outside.

In order to also accelerate the primary air and the fuel gas in the gas mixing chamber to flow into the auxiliary gas supplementing hole more quickly, the first step surface above the inner step is gradually inclined upwards from outside to inside.

Furthermore, the outer ring wall of the fire cover body is provided with at least two fire outlets communicated with the gas mixing cavity along the circumferential direction below the fire transmission groove.

Furthermore, the inner step also comprises a second step surface positioned below the inner step, and the gas inlet end of the fire outlet hole is positioned on the second step surface.

In order to stabilize the flame and produce the fire hole, the outer annular wall of the fire cover body is also provided with at least two flame stabilizing holes communicated with the gas mixing cavity at the part which is positioned in the same circumference direction with the fire transmission groove, and the inlet end of each flame stabilizing hole is also positioned on the first step surface above the inner step.

In order to prevent the influence of the overflowing liquid on the outer side opening, the fire outlet and the flame stabilizing hole of the fire transfer chamber of the fire cover, the outer edge of the outer ring wall of the fire cover body extends outwards to form a waterproof brim which shields the upper parts of the outer side opening, the fire outlet and the flame stabilizing hole of the fire transfer chamber.

Compared with the prior art, the utility model has the advantages of pass the fire room and cover this internal hidden biography fire groove structure at the fire for hiding, can open the air door big like this, make the primary air volume increase while speed grow that gets into through-hole and biography fire room, thereby can be more with the secondary air entrainment get into the room of passing fire, and simultaneously, one of them through-hole adaptation has the bolster, this bolster can make the gas, can get into the room of passing fire more slowly behind the primary air mixing becomes the gas mixture, the velocity of flow has been reduced, the steady flame performance has been improved, avoid passing the fire room because of the gas, the too fast flame that leads to the fact of primary air outlet velocity is from the flame or takes off the fire and guarantee the flame burning in the room of passing fire promptly, can effectively prevent the jam of hot water again, the suitability reinforcing to the air door aperture simultaneously, also can guarantee to pass the fire performance under the great condition of air.

Drawings

FIG. 1 is a schematic view of a burner fire cover in an embodiment of the invention;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is an angled cross-sectional view of FIG. 1;

FIG. 4 is a cross-sectional view at another angle from FIG. 1;

fig. 5 is a cross-sectional view of the buffer member of fig. 1, but omitted.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in FIGS. 1 to 5, the preferred embodiment of the present invention is shown. The burner fire cover for the gas stove in the embodiment comprises a fire cover body 1, wherein the fire cover body 1 comprises an annular top wall 11, an inner annular wall 12 vertically or obliquely extending downwards from the inner side edge of the annular top wall 11 and an outer annular wall 13 vertically or obliquely extending downwards from the outer side edge of the annular top wall 11, the inner annular wall 12 and the outer annular wall 13 jointly enclose a gas mixing cavity 14, a fire transfer chamber 2 is formed by radially and inwards extending from the outer annular wall 13 to the inner annular wall 12 on the upper surface of the annular top wall 11 of the fire cover body 1 towards the center of the fire cover body 1, an outer opening 21 of the fire transfer chamber 2 is formed on the outer annular wall 13, an inner opening 22 of the fire transfer chamber 2 is positioned above the inner annular wall 12, a through hole 23 communicated with the gas mixing cavity 14 is formed at the bottom of the fire transfer chamber 2, a buffer piece 3 is adapted to at least one through hole 23, and the buffer piece 3 comprises an air inlet end 31 in fluid communication with the gas mixing cavity 14 and an outlet end in fluid communication 32, the aperture of the air inlet end 31 is smaller than the aperture of the air outlet end 32. Pass fire room 2 and cover the hidden fire groove structure that passes of body 1 for hiding at the fire, can open the air door big like this, make the primary air volume increase of getting into through-hole 23 and passing fire room 2 speed grow simultaneously, thereby can be more with secondary air entrainment entering pass fire room 2, and simultaneously, one of them through-hole 23 adaptation has bolster 3, this bolster 3 can make the gas, can get into in passing fire room 2 more slowly behind the primary air mixing becomes the gas mixture, the velocity of flow has been reduced, the steady flame performance has been improved, avoid passing fire room 2 because of the gas, the too fast flame that leads to the fact of primary air outlet velocity is from the flame or takes off the fire and guarantee the flame burning in passing fire room 2 promptly, can effectively prevent the jam of hot water again, the suitability reinforcing to the air door aperture simultaneously, can guarantee to pass the fire performance under the great condition of aperture promptly also.

The through hole 23 further comprises a first through hole 24 positioned on the inner side of the injector, an included angle α between the center line of the first through hole 24 and the center line of the fire transfer chamber 2 is an acute angle, and the included angle between the first through hole 24 and the center line of the fire transfer chamber 2 is an acute angle, so that the design can improve the uniformity of the whole gas in the fire transfer chamber 2 and stabilize the combustion in the fire transfer chamber 2 to improve the fire transfer performance, because the fire transfer chamber 2 is hidden in the fire cover body 1, the anti-blocking performance of the ignition hole can be improved, but the problem of insufficient combustion caused by the reduction of the air quantity in the fire transfer chamber 2 can be solved, therefore, the inner opening 22 of the fire transfer chamber 2 is gradually inclined inwards from top to bottom, the first through hole 24 faces the inner opening 22 of the fire transfer chamber 2, the inner opening 22 of the fire transfer chamber 2 is provided with an inclination design capable of strengthening the suction effect on the outside air, the air supply speed is improved, the first through hole 24 faces the inner opening 22, so that the gas concentration of the gas in the inner opening 22 of the fire transfer chamber 2 can be improved, the combustion in order to adapt to the outer fire transfer chamber 2, the outer fire transfer chamber 2 is provided with an arc, the fire transfer chamber 2, the arc-supporting groove 131, and the inner opening 2, and the fire transfer chamber 2, and the inner opening 2 can be provided with the fire transfer chamber 2, so that the fire transfer chamber 2, and the fire transfer chamber 2.

In order to ensure that the fire transfer grooves 131 have sufficient gas to ensure that the fire transfer chamber 2 can transfer from the inner ring to the outer ring, it is preferable that the outer ring wall 13 is further opened with auxiliary gas replenishing holes 132 adjacent to the fire transfer chamber 2 and independent from the fire transfer chamber 2, the auxiliary gas replenishing holes 132 being communicated with the fire transfer grooves 131. Correspondingly, the inner circumferential surface of the outer circumferential wall 13 of the fire lid body 1 has an inner step 133, the air inlet end 1321 of the auxiliary air supplement hole 132 is located on the first step surface 1331 above the inner step 133, and the air outlet end 1322 of the auxiliary air supplement hole 132 intersects with the fire transfer groove 131. In order to accelerate the flow of the primary air and the gas in the gas mixing chamber into the auxiliary air replenishing holes 132 more rapidly, the auxiliary air replenishing holes 132 are gradually inclined upward from the inside to the outside from the air inlet end 1321 to the air outlet end 1322. Also in order to achieve faster inflow of the primary air and the gas in the gas mixing chamber into the auxiliary ventilating hole 132, the first step surface 1331 above the inner step 133 is gradually inclined upward from the outside to the inside. The outer ring wall 13 of the fire lid body 1 of this embodiment is further provided with at least two fire outlets 134 communicating with the air mixing chamber 14 along the circumferential direction under the fire transmitting groove 131. The inner step 133 further includes a second step surface 1332 located below the inner step 133, and the gas inlet end of the fire outlet 134 is located on the second step surface 1332. In order to stabilize the flame outlet 134, at least two flame stabilizing holes 135 communicated with the air mixing chamber 14 are further formed in the portion of the outer annular wall 13 of the fire cover body 1, which is in the same circumferential direction as the fire transmission groove 131, and the inlet end 1351 of each flame stabilizing hole 135 is also located on the first step surface 1331 above the inner step 133. Finally, in order to prevent the external opening 21, the fire hole 134 and the flame stabilizing hole 135 of the fire transfer chamber 2 of the fire cover from being affected by the spilled liquid, the outer edge of the outer ring wall 13 of the fire cover body 1 is extended outwards to form a waterproof brim 136 which shields the external opening 21, the fire hole 134 and the flame stabilizing hole 135 of the fire transfer chamber 2.

Claims

1. The utility model provides a combustor fire lid for gas-cooker, including fire lid body (1), this fire lid body (1) is including cyclic annular roof (11), from the inboard marginal vertical or slope downwardly extending's of this cyclic annular roof (11) inner ring wall (12) and from the outside marginal vertical or slope downwardly extending's of this cyclic annular roof (11) outer ring wall (13), cyclic annular roof (11), inner ring wall (12) and outer ring wall (13) enclose jointly and enclose into and have thoughtlessly gas chamber (14), its characterized in that: the fire cap comprises a fire cap body (1), wherein a fire transfer chamber (2) is formed by radially and inwardly extending the upper surface of an annular top wall (11) of the fire cap body (1) from an outer annular wall (13) to an inner annular wall (12) towards the center of the fire cap body (1), an outer opening (21) of the fire transfer chamber (2) is formed in the outer annular wall (13), an inner opening (22) of the fire transfer chamber (2) is located on the inner annular wall (12), a through hole (23) communicated with a gas mixing cavity (14) is formed in the bottom of the fire transfer chamber (2), at least one through hole (23) is matched with a buffer piece (3), the buffer piece (3) comprises a gas inlet end (31) and a gas outlet end (32), the gas inlet end (31) is in fluid communication with the gas mixing cavity (14), and the caliber of the gas outlet end (32) is smaller than that of the gas outlet end (31).

2. Burner fire cover for gas cookers according to claim 1, characterized in that the through hole (23) further comprises a first through hole (24) inside the injector, the angle α between the center line of the first through hole (24) and the center line of the flame-conducting chamber (2) being an acute angle.

3. Burner fire cover for gas cookers according to claim 2, characterized in that: the inner side opening (22) of the fire transfer chamber (2) is gradually inclined inwards from top to bottom, and the first through hole (24) faces the inner side opening (22) of the fire transfer chamber (2).

4. Burner fire cover for gas cookers according to claim 3, characterized in that: the fire cover body (1) is provided with a fire transmission groove (131) communicated with the outer opening (21) along the circumferential direction on the outer ring wall (13).

5. Burner fire cover for gas cookers according to claim 4, characterized in that: the outer ring wall (13) is also provided with an auxiliary air supplement hole (132) which is adjacent to the fire transmission chamber (2) and is independent of the fire transmission chamber (2), and the auxiliary air supplement hole (132) is communicated with the fire transmission groove (131).

6. Burner fire cover for gas cookers according to claim 5, characterized in that: the inner peripheral surface of the outer ring wall (13) of the fire cover body (1) is provided with an inner step (133), the air inlet end (1321) of the auxiliary air supplementing hole (132) is positioned on a first step surface (1331) above the inner step (133), and the air outlet end (1322) of the auxiliary air supplementing hole (132) is intersected with the fire transfer groove (131).

7. Burner fire cover for gas cookers according to claim 6, characterized in that: the auxiliary air supply hole (132) is gradually inclined upwards from the air inlet end (1321) to the air outlet end (1322) from inside to outside.

8. Burner fire cover for gas cookers according to claim 7, characterized in that: the first step surface (1331) above the inner step (133) is gradually inclined upward from the outside to the inside.

9. Burner fire cover for gas cookers according to claim 8, characterized in that: the outer ring wall (13) of the fire cover body (1) is provided with at least two fire outlets (134) communicated with the gas mixing cavity (14) along the circumferential direction below the fire transmission groove (131).

10. Burner fire cover for gas cookers according to claim 9, characterized in that: the inner step (133) further comprises a second step surface (1332) positioned below the inner step (133), and the gas inlet end of the fire outlet hole (134) is positioned on the second step surface (1332).

11. Burner fire cover for gas cookers according to claim 9 or 10, characterized in that: the outer ring wall (13) of the fire cover body (1) is also provided with at least two flame stabilizing holes (135) communicated with the gas mixing cavity (14) at the part which is in the same circumferential direction with the fire transmission groove (131), and the inlet end (1351) of each flame stabilizing hole (135) is also positioned on the first step surface (1331) above the inner step (133).

12. Burner fire cover for gas cookers according to claim 11, characterized in that: the outer edge of the outer ring wall (13) of the fire cover body (1) extends outwards to form a waterproof brim (136) which is shielded above the outer side opening (21), the fire outlet (134) and the flame stabilizing hole (135) of the fire transfer chamber (2).