CN215175047U - Small fire cover and combustor with same - Google Patents

Abstract

The utility model provides a little fire lid and combustor that has this little fire lid. The small fire cover comprises a body, the body comprises a top wall and a side wall, the top wall and the side wall are enclosed to form a gas channel, a plurality of main fire holes and a plurality of flame stabilizing holes are arranged on the side wall in the circumferential direction, the main fire holes and the flame stabilizing holes are distributed up and down, each flame stabilizing hole comprises a first flame stabilizing hole arranged right below each main fire hole, and the main fire holes and the first flame stabilizing holes communicate the gas channel with the outside; the side wall is provided with a first outer side face, a second outer side face and a middle end face, the middle end face is connected between the first outer side face and the second outer side face, the side wall is provided with an annular groove, and the annular groove extends upwards from the middle end face to be communicated with the first flame stabilizing hole. The utility model discloses can effectively play the effect of steady flame, prevent from the flame, can also keep the fire hole unblocked.

Description

Small fire cover and combustor with same

Technical Field

The utility model relates to a domestic gas cooking utensils technical field specifically, relates to a little fire lid and have combustor of this little fire lid.

Background

The gas stove is widely applied as a kitchen utensil, but the problems of small flame leaving, no gas discharging, blockage and the like are frequently seen, the reasons are various, and the gas pressure is large, so that the gas can not be stably combusted due to the fact that the gas discharging speed is too high to cause flame leaving; fire holes are blocked due to improper use or cooking materials, so that the performance of the burner is poor or ignition cannot be performed, and the use of the gas stove is influenced.

Therefore, it is desirable to provide a small fire lid to address as much as possible the problems of flame exit and fire hole plugging.

SUMMERY OF THE UTILITY MODEL

The main object of the utility model is to provide a little fire lid to solve the problem that little fire lid is easy to be from flame and fire hole jam among the prior art.

In order to achieve the purpose, the utility model provides a small fire cover, which comprises a body, the body includes roof and lateral wall, the roof encloses with the lateral wall and closes and form gas passage, lateral wall upwards is provided with a plurality of main flame holes and a plurality of flame stabilizing hole in circumference, main flame hole with the flame stabilizing hole is upper and lower distribution, the flame stabilizing hole includes the first flame stabilizing hole that sets up under corresponding each main flame hole, main flame hole and first flame stabilizing hole will the gas passage with the outside intercommunication; the side wall is provided with a first outer side face, a second outer side face and a middle end face, the middle end face is connected between the first outer side face and the second outer side face, an annular groove is formed in the side wall, and the annular groove extends upwards from the middle end face to be communicated with the first flame stabilizing hole.

According to the small flame cover, on one hand, when the gas passes through the annular groove through the first flame stabilizing hole, a part of the gas flows into the annular groove, so that the effect of shunting and limiting speed is achieved, the flame formed by the flame stabilizing hole is short and powerful, the effect of stabilizing flame is effectively achieved, and the flame is prevented from leaving the flame. On the other hand, even when the first flame stabilizing holes are partially blocked by impurities and the fuel gas cannot be effectively ejected from all the first flame stabilizing holes, because a large amount of fuel gas can be stored in the annular groove, part of the fuel gas stored in the annular groove can flow out from the lower part of the annular groove and is ignited by the first flame stabilizing holes which can be normally combusted, a small flame stabilizing ring is formed, the flame stabilizing ring can effectively heat the blocked first flame stabilizing holes, so that the blocked oil-water mixture can be evaporated and dispersed as soon as possible to keep the flame holes smooth, and a certain flame stabilizing effect can be achieved.

Illustratively, the flame stabilizing holes further comprise a second flame stabilizing hole positioned between two adjacent first flame stabilizing holes, the second flame stabilizing hole is a blind hole, and the second flame stabilizing hole is communicated with the annular groove. Because be provided with the second flame stabilizing hole between two adjacent first flame stabilizing holes, on the one hand, when the gas passes through first flame stabilizing hole and passes through the ring channel, have partly gas flow in the ring channel or flow out from the second flame stabilizing hole, further improved the effect of reposition of redundant personnel speed limit, make the flame that the flame stabilizing hole formed short and powerful to more effectively play the effect of flame stabilizing, prevent from the flame. On the other hand, even when the first flame stabilizing holes at the part blocked by impurities and the gas cannot be effectively ejected from all the first flame stabilizing holes, because a large amount of gas can be stored in the annular groove, one part of the gas stored in the annular groove can flow out and be ignited from the second flame stabilizing holes, and one part of the gas can flow out from the lower part of the annular groove and be ignited by the first flame stabilizing holes which can normally combust, a small flame stabilizing ring is formed, the flame stabilizing ring can effectively heat the blocked first flame stabilizing holes, so that the blocked oil-water mixture can be quickly evaporated and dispersed to keep the flame holes smooth, and a certain flame stabilizing effect can be achieved. Moreover, under the condition that the first flame stabilizing hole is not blocked, the second flame stabilizing hole can ensure that the gas emitted from the annular groove is enough to be ignited, so that the waste caused by gas leakage is avoided, and the use efficiency of the gas is improved.

Illustratively, the annular groove has an outer groove face remote from the second outer side face, the outer groove face and the first outer side face having a first wall thickness S1 therebetween, S1 being 0.5mm to 3 mm. So, can make things convenient for ring channel processing, also can guarantee that the effectual outflow of gas is ignited.

Illustratively, the depth of the second flame stabilizing hole is h, and S1 is less than or equal to h less than or equal to S1+3 mm. So, the second steady flame hole can communicate with each other with the ring channel, can avoid the too dark gas of depth again and can not effectual outflow by the problem of igniting.

Illustratively, the annular groove has a width W, W being 1mm to 3 mm. So, the ring channel can effectual storage gas, also can avoid the too big problem that influences little fire lid life of width of ring channel.

Illustratively, the annular grooves have a depth H, which is 1mm to 3 mm. So, the ring channel can effectual storage gas, also can avoid the too dark gas of the degree of depth of ring channel can not effectual outflow by the problem of igniting.

Illustratively, the main fire hole and the first flame stabilizing hole have a second wall thickness S2, S2 is 0.8mm-2 mm. So, can avoid second wall thickness S2 undersize, lead to main burner port and steady flame hole processing difficulty, the problem of breaking easily between main burner port and the first steady flame hole, also can avoid second wall thickness S2 to lead to the unable effectual problem of stabilizing main burner port flame of steady flame hole.

Illustratively, the centerline of the primary fire hole lies in a reference horizontal plane. Thus, the main fire hole is a horizontal through hole, so that the probability of blockage can be reduced.

Illustratively, the centerline of the first flame stabilizing hole or/and the centerline of the second flame stabilizing hole are parallel to the centerline of the main flame hole. So, first steady flame hole is horizontal through-hole to can reduce the probability of blockking up, the second steady flame hole is the level setting, also can reduce the probability of blockking up.

Illustratively, the body has a top surface with an inclined connection face therebetween, the inclined connection face sloping outwardly and downwardly from the top surface toward the first outer side face. Therefore, when the pan overflowing phenomenon occurs, the liquid can smoothly flow downwards through the inclined connecting surface.

According to another aspect of the present invention, there is also provided a burner comprising any one of the small fire covers as described above. Since the above-mentioned small fire cover has the above-mentioned advantageous effects, the burner provided with the above-mentioned small fire cover also has the above-mentioned advantageous effects.

The advantages and features of the present invention are described in detail below with reference to the accompanying drawings.

Drawings

The following drawings of the present invention are used herein as part of the present invention for understanding the present invention. There are shown in the drawings, embodiments and descriptions thereof, which are used to explain the principles of the invention. In the drawings, there is shown in the drawings,

fig. 1 is a perspective view of a small fire lid according to an exemplary embodiment of the present invention;

FIG. 2 is a front view of the small fire lid of FIG. 1;

FIG. 3 is a cross-sectional view A-A of FIG. 2;

fig. 4 is a sectional view taken along line B-B in fig. 3.

Wherein the figures include the following reference numerals:

10-main body

101-top surface

102-inclined connecting surface

11-roof wall

12-side wall

121-first outer side

122-second outside flank

123-middle end face

13-gas channel

14-main fire hole

15-flame stabilizing hole

151-first flame stabilizing hole

152-second flame stabilizing hole

16-ring groove

161-outer trough surface

Detailed Description

In the following description, numerous details are provided to provide a thorough understanding of the present invention. One skilled in the art, however, will understand that the following description illustrates only a preferred embodiment of the invention and that the invention may be practiced without one or more of these details. In addition, some technical features that are well known in the art are not described in detail in order to avoid obscuring the present invention.

For a household gas range, a burner of the household gas range generally has a large flame cover (also called an outer ring flame cover) and a small flame cover (also called a center flame cover) to form at least two rings of flames, thereby providing a plurality of flame modes when used by a user. Accordingly, the burner further comprises a large flame distributor and a small flame distributor, and a large flame venturi and a small flame venturi. The small fire distributor is arranged at the center of the large fire distributor. The big fire cover and the small fire cover are respectively covered on the big fire distributor and the small fire distributor, and the big fire cover is positioned at the periphery of the small fire cover. The big fire venturi and the small fire venturi are respectively connected to the big fire distributor and the small fire distributor. The big fire distributor, the big fire cover and the big fire venturi form a big fire gas mixing chamber. The small fire distributor, the small fire cover and the small fire venturi form a small fire gas mixing chamber.

The small fire cover according to an embodiment of the present invention will be described with reference to fig. 1 to 4.

The small flame cover comprises a body 10, the body 10 comprises a top wall 11 and a side wall 12, the top wall 11 and the side wall 12 are enclosed to form a gas channel 13, the side wall 12 is circumferentially provided with a plurality of main flame holes 14 and a plurality of flame stabilizing holes 15, the main flame holes 14 and the flame stabilizing holes 15 are distributed up and down, the main flame holes 14 are located on the same circumference to form a circle, the flame stabilizing holes 15 comprise first flame stabilizing holes 151 arranged right below each main flame hole 14 and second flame stabilizing holes 152 located between two adjacent first flame stabilizing holes 151, and the main flame holes 14 and the first flame stabilizing holes 151 communicate the gas channel 13 with the outside. The side wall 12 has a first outer side surface 121, a second outer side surface 122 and a middle end surface 123, the middle end surface 123 is connected between the first outer side surface 121 and the second outer side surface 122 to make the small fire cover have a hat brim shape as a whole, and the side wall 12 is provided with an annular groove 16, and the annular groove 16 extends upwards (for example, vertically upwards) from the middle end surface 123 to be communicated with the first flame stabilizing hole 151 and the second flame stabilizing hole 152. It should be understood that, since the gas channel 13 is communicated with the outside, the main flame hole 14 and the first flame stabilizing hole 151 both extend from the first outer side 121 to the inner side of the side wall 12, that is, the main flame hole 14 is a through hole, and the first flame stabilizing hole 151 is a through hole. The second flame stabilizing holes 152 do not need to penetrate the first outer side surface 121 and extend to the inner side surface of the side wall 12, that is, the second flame stabilizing holes 152 are blind holes. It should be noted that reference herein to "outer side" and "inner side" is made with respect to a small fire lid covering the small fire distributor, with the exposed surface being the outer side and the hidden surface being the "inner side" after the small fire lid is covered on the distributor.

On one hand, when the gas passes through the annular groove 16 through the first flame stabilizing holes 151, a part of the gas flows into the annular groove 16 or flows out from the second flame stabilizing holes 152, so that the flow dividing and speed limiting effects are achieved, the flame formed by the flame stabilizing holes 15 is short and powerful, the flame stabilizing effect is effectively achieved, and the flame is prevented from leaving. On the other hand, even when the first flame stabilizing holes 151 are partially blocked by impurities and the gas cannot be effectively ejected from all the first flame stabilizing holes 151, because a large amount of gas is stored in the annular groove 16, a part of the gas stored in the annular groove 16 can flow out from the second flame stabilizing holes 152 to be ignited, and a part of the gas can flow out from the lower part of the annular groove 16 and be ignited by the first flame stabilizing holes 151 which can be normally combusted, so that a small flame stabilizing ring is formed, the flame stabilizing ring can effectively heat the blocked first flame stabilizing holes 151, so that the blocked oil-water mixture can be evaporated and dispersed as soon as possible to keep the flame holes unblocked, and a certain flame stabilizing effect can be achieved. Moreover, under the condition that the first flame stabilizing holes 151 are not blocked, the second flame stabilizing holes 152 can ensure that the gas emitted from the annular groove 16 is enough to be ignited, so that waste caused by gas leakage is avoided, and the use efficiency of the gas is improved.

Although the above description has been given of the embodiment in which the flame stabilizing holes 15 include the first flame stabilizing holes 151 disposed right below each main flame hole 14 and the second flame stabilizing holes 152 disposed between two adjacent first flame stabilizing holes 151, in the embodiment not shown, the flame stabilizing holes 15 may include only the first flame stabilizing holes 151 disposed right below each main flame hole 14, that is, the second flame stabilizing holes 152 are not included, and in this embodiment, when the gas passes through the annular groove 16 through the first flame stabilizing holes 151, a part of the gas may flow into the annular groove 16, which may serve as a flow dividing speed limiting function, so that the flame formed by the flame stabilizing holes may be short and powerful, thereby effectively functioning as a flame stabilizing function and preventing flame-out. On the other hand, even when the first flame stabilizing holes 151 are partially blocked by impurities and the gas cannot be effectively ejected from all the first flame stabilizing holes 151, because a large amount of gas is stored in the annular groove 16, a part of the gas stored in the annular groove 16 flows out from the lower part of the annular groove 16 and is ignited by the first flame stabilizing holes 151 which can be normally combusted, a small flame stabilizing ring is formed, and the flame stabilizing ring can effectively heat the blocked first flame stabilizing holes 151, so that the blocked oil-water mixture can be evaporated and dispersed as soon as possible to keep the flame holes unblocked, and a certain flame stabilizing effect can be achieved.

Referring again to fig. 4, the annular groove 16 has an outer groove surface 161 away from the second outer side surface 122, a first wall thickness S1 is provided between the outer groove surface 161 and the first outer side surface 122, S1 is 0.5mm to 3mm, S1 is, for example, 0.5mm, 1mm, 1.5mm, 2mm, 2.5mm, 3mm, etc., if S1 is less than 0.5mm, the annular groove 16 is not easily machined, and if S1 is greater than 3mm, the fuel gas stored in the annular groove 16 is not easily flowed out. Therefore, the S1 is 0.5mm-3mm, which not only facilitates the processing of the annular groove 16, but also ensures that the fuel gas effectively flows out and is ignited.

Further, referring to FIG. 3 and FIG. 4, the depth of the second flame stabilizing holes 152 is h, S1 ≦ h ≦ S1+3 mm. Thus, the second flame stabilizing holes 152 can be communicated with the annular groove 16, and the problem that the gas cannot effectively flow out and be ignited due to too deep depth can be avoided.

Further, the width of the annular groove 16 is W, W is 1mm to 3mm, W is, for example, 1mm, 2mm, 3mm, etc., and if W is less than 1mm, it is unable to effectively store the fuel gas; if W is more than 3mm, the structural strength of the small fire cover is influenced, and therefore the service life is influenced. Therefore, W is 1mm-3mm, the annular groove 16 can effectively store fuel gas, and the problem that the service life of the small fire cover is influenced by the overlarge width of the annular groove 16 can be avoided.

Further, the depth of the annular groove 16 is H, which is 1mm to 3 mm. H is 1mm, 2mm, 3mm and the like, and if the H is less than 1mm, the fuel gas cannot be effectively stored; if H is greater than 3mm, the path of the gas flowing out from the lower part of the annular groove 16 is too long, and the gas cannot effectively flow out and is ignited. Therefore, H is 1mm-3mm, the annular groove 16 can effectively store fuel gas and avoid the problem that the fuel gas cannot effectively flow out and be ignited due to the too deep depth of the annular groove 16.

Further, the main flame holes 14 and the first flame stabilizing holes 151 have a second wall thickness S2, S2 is 0.8mm-2mm, and S2 is, for example, 0.8mm, 1.2mm, 1.6mm, 2mm, etc., it should be understood that since the first flame stabilizing holes 151 and the second flame stabilizing holes 152 are located on the same circumference, the wall thickness between the main flame holes 14 and the second flame stabilizing holes 152 is also S2. Based on the setting of 0.8mm-2mm in S2, the problems that the main flame hole 14 and the flame stabilizing holes (the first flame stabilizing hole 151 and the second flame stabilizing hole 152 are collectively called) are difficult to process due to the fact that the second wall thickness S2 is too small, the main flame hole 14 and the first flame stabilizing hole 151 are easy to break through, and the problem that the flame of the main flame hole 14 cannot be effectively stabilized due to the fact that the flame stabilizing holes cannot be formed due to the second wall thickness S2 can be avoided.

As an exemplary embodiment, the centerline of the main fire hole 14 is located in a reference horizontal plane. In this manner, the main fire holes 14 are horizontal through holes, thereby reducing the probability of being blocked.

As an exemplary embodiment, the center line of the first flame stabilizing hole 151 is parallel to the center line of the main fire hole 14, and the center line of the second flame stabilizing hole 152 is also parallel to the center line of the main fire hole 14. In this way, the first flame stabilizing holes 151 are horizontal through holes, so that the probability of being blocked can be reduced, and the second flame stabilizing holes 152 are horizontal, so that the probability of being blocked can also be reduced.

As an exemplary embodiment, as shown in fig. 4, the body 10 has a top surface 101, the top surface 101 may extend from the top wall 11 to the side wall 12, the top surface 101 and the first outer side 121 have an inclined connecting surface 102 therebetween, and the inclined connecting surface 102 is inclined outward and downward from the top surface 101 toward the first outer side 121. Thus, when the pan overflow phenomenon occurs, the liquid can smoothly flow downwards through the inclined connecting surface 102.

According to another aspect of the present invention, there is also provided a burner having any one of the above-mentioned small fire covers. Besides, the burner also comprises a venturi, a distributor and the like. The venturi and the distributor may have various structures, present or possible in the future, which do not constitute a limitation of the scope of protection of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "up", "down", and "horizontal" etc. is usually based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the scope of the present invention; the terms "inner" and "outer" refer to the interior and exterior relative to the contours of the components themselves.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe the spatial relationship of one or more components or features shown in the figures to other components or features. It is to be understood that the spatially relative terms are intended to encompass not only the orientation of the component as depicted in the figures, but also different orientations of the component in use or operation. For example, if an element in the drawings is turned over in its entirety, the articles "over" or "on" other elements or features will include the articles "under" or "beneath" the other elements or features. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". Further, these components or features may also be positioned at various other angles (e.g., rotated 90 degrees or other angles), all of which are intended to be encompassed herein.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, elements, components, and/or combinations thereof, unless the context clearly indicates otherwise.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

The present invention has been described in terms of the above embodiments, but it is to be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the invention to the described embodiments. Furthermore, it will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that many more modifications and variations are possible in light of the teaching of the present invention and are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (11)

1. The utility model provides a little fire lid, includes the body, the body includes roof and lateral wall, the roof with the lateral wall encloses to close and forms gas passage, lateral wall circumference is last to be provided with a plurality of main flame holes and a plurality of steady flame holes, main flame hole with steady flame hole is upper and lower distribution, steady flame hole is including corresponding every the first steady flame hole that sets up under the main flame hole, main flame hole with first steady flame hole will gas passage and outside intercommunication, a serial communication port, the lateral wall has first lateral surface, second lateral surface and middle terminal surface, middle terminal surface is connected first lateral surface with between the second lateral surface, just the ring channel has been seted up on the lateral wall, the ring channel is followed middle terminal surface upwards extend to with first steady flame hole communicates with each other.

2. The small fire cover according to claim 1, wherein the flame stabilizing holes further comprise a second flame stabilizing hole located between two adjacent first flame stabilizing holes, the second flame stabilizing hole is a blind hole, and the second flame stabilizing hole is communicated with the annular groove.

3. The small fire lid as claimed in claim 2, wherein the annular groove has an outer groove face remote from the second outer side face, the outer groove face and the first outer side face having a first wall thickness S1, S1 of 0.5mm-3 mm.

4. The small fire cover according to claim 3, wherein the depth of the second flame stabilizing holes is h, S1 ≦ h ≦ S1+3 mm.

5. The small fire lid according to claim 2, wherein the annular groove has a width W of 1mm to 3 mm.

6. The small fire cover according to claim 2, wherein the depth of the annular groove is H, which is 1mm to 3 mm.

7. The small fire lid as claimed in claim 2, wherein the main fire hole and the first flame stabilizing hole have a second wall thickness S2, S2 is 0.8mm-2 mm.

8. The small fire cover according to any one of claims 2 to 7, wherein the center line of the main fire hole is located in a reference horizontal plane.

9. The small fire cover according to claim 8, wherein the centerline of the first flame stabilizing hole or/and the centerline of the second flame stabilizing hole are parallel to the centerline of the main fire hole.

10. The small fire lid as set forth in claim 1 wherein said body has a top surface with an inclined attachment surface between said top surface and said first outer side surface, said inclined attachment surface sloping outwardly and downwardly from said top surface toward said first outer side surface.

11. A burner comprising a small fire lid according to any one of claims 1 to 10.

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