CN214172227U - Fire cover and combustor with same - Google Patents

Abstract

The utility model provides a fire lid and combustor that has this fire lid. The fire lid includes the body and the cap body, the body includes roof and lateral wall, the roof encloses with the lateral wall and closes formation gas passage, be provided with on the lateral wall and be present, main fire hole and the steady flame hole that distributes down, main fire hole and steady flame hole communicate gas passage and outside, the cap body sets up in the body top, and the circumference of relative body outwards extends in order to cover the body completely in vertical direction, it has a plurality of water conservancy diversion teeth to distribute along the circumferential direction on the cap body, a guiding gutter has between every two adjacent water conservancy diversion teeth, it sets up a main fire hole to correspond under every water conservancy diversion tooth, steady flame hole is including the main steady flame hole that sets up under corresponding every main fire hole. The utility model discloses can make main fire hole and main steady flame hole keep normal burning, avoid main fire hole and main steady flame hole to block up, eliminate because the fire hole blocks up or the fire extinguishes the potential safety hazard that brings, and then can improve the safety in utilization of combustor.

Description

Fire cover and combustor with same

Technical Field

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

Background

In the process of cooking food by using the gas stove, the food is inevitably overflowed, and particularly when porridge or soup is made, the food is overflowed by a little carelessness. The overflowed food residues directly block the fire hole channel to cause ignition failure; or the food residues can be accumulated in the gas cavity due to the fact that the food residues downwards flow into the gas cavity inside the fire cover along the fire hole channel of the fire cover, so that the performance of the burner is poor or the burner cannot be ignited, and the use of the gas stove is influenced.

In order to reduce the probability that the bocca blockked up, current fire lid adopts water receiving recess at top design, though can slow down the bocca through the design of water receiving recess, nevertheless still has following problem: due to the adhesive force of water, when the capacity is exceeded, the water flows down along the wall of the ignition cover so as to block the fire hole.

SUMMERY OF THE UTILITY MODEL

The main object of the utility model is to provide a fire lid to solve the problem that fire lid easily blocks up the fire hole passageway when meetting the excessive pot phenomenon among the prior art.

In order to realize the above-mentioned purpose, the utility model provides a fire lid, including the body and the cap body, the body includes roof and lateral wall, the roof with the lateral wall encloses to close and forms gas passage, be provided with main fire hole and the steady flame hole that is upper and lower distribution on the lateral wall, main fire hole with steady flame hole will gas passage and outside intercommunication, the cap body sets up body top, and relative the circumference of body outwards extends in order to cover completely in vertical direction the body, it has a plurality of water conservancy diversion teeth, every adjacent two to distribute along the circumference direction on the cap body have a guiding gutter between the water conservancy diversion tooth, every correspond under the water conservancy diversion tooth and set up one main fire hole, steady flame hole is including corresponding every the main steady flame hole that sets up under the main fire hole.

Foretell fire lid, because the setting of guiding gutter, and combine the water conservancy diversion tooth that sets up directly over every main flame hole and every main steady flame hole, during the overflow, the overflow flows down along the guiding gutter between two adjacent water conservancy diversion teeth, thereby can protect main flame hole and main steady flame hole, make main flame hole and main steady flame hole keep normal combustion, main flame hole and main steady flame hole jam have been avoided, the potential safety hazard that brings because the flame hole (the general name of main flame hole and steady flame hole) blocks up or the fire extinguishes has been eliminated, and then the safety in utilization of combustor can be improved.

Illustratively, the flame stabilizing holes further comprise a secondary flame stabilizing hole located between two adjacent primary flame stabilizing holes. Because the auxiliary flame stabilizing holes are arranged between two adjacent main flame stabilizing holes, better flame stabilizing and flame connecting effects can be achieved; and when the liquid overflows, the overflow liquid flows downwards along the guide groove between two adjacent guide teeth, the auxiliary flame stabilizing hole is extinguished by the overflow liquid and even blocked, the sacrificial effect is achieved, and the main fire hole and the main flame stabilizing hole are further protected, so that the flame can be kept in normal combustion.

Illustratively, the cap body has a top surface with a water containing cavity recessed toward the top wall. Therefore, when the pan overflowing phenomenon occurs, the liquid dropping on the top surface of the cap body can enter the water containing cavity, and the liquid is prevented from extinguishing fire.

Illustratively, the cap body forms a cavity side wall around the water containing cavity, and the cavity side wall is provided with a water drainage hole which is communicated with the water containing cavity and the outside. Therefore, when the pan overflowing phenomenon occurs and enough liquid exists in the water containing cavity, the liquid can be discharged through the water discharging hole.

Illustratively, the center of the drain hole and the center of one of the main fire holes are located in the same vertical plane. Therefore, when the phenomenon of pot overflow occurs and enough liquid exists in the water containing cavity, the liquid can flow out downwards along the flow guide groove through the drain hole, the main flame stabilizing hole and part of the auxiliary flame stabilizing holes corresponding to the position right below the drain hole are sacrificed, and flames of other flame holes can be combusted normally.

Illustratively, an included angle alpha is formed between the central line of the drainage hole and the horizontal plane, and alpha is 0-60 degrees. Alpha is 0 degrees, 15 degrees, 30 degrees, 45 degrees, 60 degrees and the like, so that the drain hole can play a good drainage role, the problem that drainage is not smooth due to too small angle can be avoided, and the problem that the drain hole is directly communicated with the main fire hole due to too large angle can be avoided.

Illustratively, the maximum aperture of the drain hole forms a width W of the drain hole, the maximum width of the diversion trench is L, the maximum thickness of the diversion tooth is M, and W is M + 2L. Therefore, when the phenomenon of pot overflow occurs and enough liquid exists in the water containing cavity, the liquid can flow out downwards along the flow guide groove through the drain hole, the main flame stabilizing hole and the two auxiliary flame stabilizing holes which correspond to the positions right below the drain hole are sacrificed, and flames of other flame holes can be combusted normally.

Illustratively, the diameter of the main fire hole is D, and M is larger than or equal to D. Therefore, the protective effect of the guide teeth on the main fire holes below the guide teeth can be guaranteed.

Illustratively, the main fire hole is provided with a fire outlet arranged on the outer side surface of the side wall, the flow guide teeth are provided with lower surfaces, a distance P is reserved between the top of the fire outlet and the lower surfaces, and the distance P is 0.5-1 mm. P is for example 0.5mm, 0.8mm and 1mm etc. so, can guarantee that main fire hole goes out the fire and can not receive the influence because of the water conservancy diversion tooth setting.

Exemplarily, the tooth height h of the flow guide tooth is 2.7 mm-2.9 mm. The tooth height of water conservancy diversion tooth is 2.7mm, 2.8mm, 2.9mm etc. for example, so, can guarantee that main fire hole goes out fire and can not receive the influence because of water conservancy diversion tooth sets up.

According to another aspect of the present invention, there is also provided a burner comprising any one of the fire covers as described above. Since the above fire cover has the above advantageous effects, the burner provided with the above fire cover also has the above 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 block diagram of a fire cover according to an exemplary embodiment of the present invention;

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

FIG. 3 is a side view of the fire lid of FIG. 1;

FIG. 4 is a top view of the fire lid of FIG. 1;

fig. 5 is a sectional view showing an internal structure of the fire cover of fig. 1.

Wherein the figures include the following reference numerals:

10-main body

11-roof wall

12-side wall

13-gas channel

14-main fire hole

141-fire outlet

15-flame stabilizing hole

151-main flame stabilizing hole

152-auxiliary flame stabilizing hole

20-cap body

201-top surface

202-Chamber side wall

203-bottom surface

21-flow guiding tooth

2101 tooth tip

211-lower surface

22-diversion trench

23-water containing cavity

24-drainage hole

241 water inlet

242-outlet opening

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 fire cover of the utility model can be the small fire cover or the big fire cover.

A fire cover according to an embodiment of the present invention will be described with reference to fig. 1 to 5.

The fire lid includes a body 10 and a cap body 20. The body 10 comprises a top wall 11 and a side wall 12, the top wall 11 and the side wall 12 enclose to form a gas channel 13, a main fire hole 14 and a flame stabilizing hole 15 which are distributed up and down are arranged on the side wall 12, and the gas channel 13 is communicated with the outside through the main fire hole 14 and the flame stabilizing hole 15. The main fire holes 14 are, for example, a plurality of, and the plurality of main fire holes 14 are located on the same circumference to form a circle; the flame stabilizing holes 15 are, for example, a plurality of holes, and the plurality of flame stabilizing holes 15 are located on the same circumference to form a circle. The cap body 20 is disposed above the body 10 and extends outward relative to the circumference of the body 10 to completely cover the body 10 in the vertical direction, a plurality of guide teeth 21 are distributed on the cap body 20 along the circumferential direction, a guide groove 22 is formed between every two adjacent guide teeth 21, it should be understood that the cap body 20 has a top surface 201 and a bottom surface 203, the guide teeth 21 extend from the top surface 201 to the bottom surface 203, and the guide groove 22 also penetrates from the top surface 201 to the bottom surface 203, so that the cap body 20 forms a brim in the shape of an outer ring gear. A main flame hole 14 is correspondingly arranged right below each flow guide tooth 21, and the flame stabilizing holes 15 comprise main flame stabilizing holes 151 correspondingly arranged right below each main flame hole 14.

Above-mentioned fire lid, because the setting of guiding gutter 22, and combine the water conservancy diversion tooth 21 that sets up directly over every main burner orifice 14 and every main flame stabilizing hole 151, during the overflow, the overflow flows down along the guiding gutter 22 between two adjacent water conservancy diversion teeth 21, thereby can protect main burner orifice 14 and main flame stabilizing hole 151, make main burner orifice 14 and main flame stabilizing hole 151 keep normal combustion, avoided main burner orifice 14 and main flame stabilizing hole 151 to block up, eliminated because the burner orifice blocks up or the fire extinguishes the potential safety hazard that brings, and then can improve the safety in utilization of combustor.

Referring again to fig. 1 and 3 in combination, the flame stabilizing holes 15 further include a secondary flame stabilizing hole 152 between two adjacent primary flame stabilizing holes 151. Because the auxiliary flame stabilizing holes 152 are arranged between two adjacent main flame stabilizing holes 151, better flame stabilizing and connecting effects can be achieved; in addition, during the liquid overflowing process, the overflowing liquid flows downwards along the guide groove 22 between two adjacent guide teeth 21, the auxiliary flame stabilizing hole 152 is extinguished by the overflowing liquid, even blocked, and plays a sacrificial role, so that the main flame hole 14 and the main flame stabilizing hole 151 are further protected, and the flame is kept burning normally.

As an exemplary embodiment, the top surface 201 has a water containing cavity 23 recessed toward the top wall 11. Therefore, when the pot overflowing phenomenon occurs, liquid dropping on the top surface 201 of the cap body can enter the water containing cavity 23, and the liquid is prevented from extinguishing fire.

Further, the cap body 20 forms a chamber sidewall 202 around the water containing chamber 23, and the chamber sidewall 202 has a water discharge hole 24 communicating the water containing chamber 23 with the outside, so that when a pot overflow phenomenon occurs and there is enough liquid in the water containing chamber 23, the liquid can be discharged through the water discharge hole 24. Preferably, the center of the water discharge hole 24 and the center of one of the main flame holes 14 are located in the same vertical plane, so that when a pan overflow phenomenon occurs and there is enough liquid in the water containing cavity, the liquid can flow out downwards along the guiding groove 22 through the water discharge hole 14, and the flames of the other flame holes can be burned normally by sacrificing one of the main flame holes 14, one of the main flame holes 151 and a part of the auxiliary flame holes 152 which are located right below the water discharge hole 24.

In the embodiment of the present invention, an included angle α is formed between the central line of the drain hole 24 and the horizontal plane, and α is 0 to 60 °. α is, for example, 0 °, 15 °, 30 °, 45 °, 60 °, etc., preferably 30 °, so that the drain hole 24 can perform a good drainage function, and can avoid the problem of poor drainage due to an excessively small angle and the problem of direct communication between the drain hole 24 and the main fire hole 14 due to an excessively large angle. It should be appreciated that, as shown in FIG. 5, the center line of the drain hole 24 is inclined downwardly from the inlet 241 toward the outlet 242 for the purpose of draining water outwardly.

As shown in fig. 3, in an embodiment of the present invention, the maximum diameter of the drainage hole 24 forms a width W of the drainage hole, the maximum width of the diversion trench 22 is L, the maximum thickness of the diversion tooth 21 is M, and W is M + 2L. Therefore, when the pan overflow phenomenon occurs and the amount of liquid in the water containing cavity is enough, the liquid can flow out downwards along the flow guide groove 22 through the drainage hole 24, and the flames of other flame holes can be combusted normally by sacrificing one main flame hole 14, one main flame stabilizing hole 151 and two auxiliary flame stabilizing holes 152 which are corresponding to the drainage hole 24.

Referring to fig. 3 and 5, the main fire hole 14 is a through hole, the diameter of the main fire hole 14 is D, and M ≧ D. Thus, the protective effect of the guide teeth 21 on the main fire holes 14 below can be ensured. In one embodiment, D is 2.4mm and the maximum thickness M of the teeth 21 is 2.6 mm.

Referring to fig. 3 again, the main fire hole 14 has a fire outlet 141 disposed on the outer side surface of the side wall 12, the guide teeth 21 have a lower surface 211, and a distance P between the top of the fire outlet 141 and the lower surface 211 is 0.5mm to 1 mm. P is, for example, 0.5mm, 0.8mm, 1mm, etc., preferably 0.8 mm. Thus, the fire of the main fire hole 14 can be ensured not to be influenced by the arrangement of the diversion teeth 21. It should be noted that reference herein to the "outer side" is with respect to the fire lid covering the distributor, and the exposed surface of the fire lid covering the distributor is the outer side.

Furthermore, the tooth height h of the guide teeth 21 is 2.7 mm-2.9 mm. The tooth height h of the guide teeth is, for example, 2.7mm, 2.8mm, 2.9mm, etc., preferably 2.8 mm. Thus, the fire of the main fire hole 14 can be ensured not to be influenced by the arrangement of the diversion teeth 21. It should be understood that the guide teeth 21 extend outwardly in the height direction from the circumference of the body 10, as shown in fig. 2, the tooth height h of the guide teeth 21 actually refers to the distance between the tooth tip 2101 of the guide teeth 21 and the outer side surface of the side wall 12.

According to another aspect of the present invention, there is also provided a burner having any one of the fire covers as described above. 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 "upper", "lower", "vertical", "horizontal" and "top", "bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are 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 interpreted 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 fire lid, includes the body and the cap body, the body includes roof and lateral wall, the roof with the lateral wall encloses to close and forms gas passage, be provided with main fire hole and the steady flame hole that is upper and lower distribution on the lateral wall, main fire hole with steady flame hole will gas passage and outside intercommunication, the cap body sets up body top, and relative the circumference of body outwards extends in order to cover completely in vertical direction the body, its characterized in that, it has a plurality of water conservancy diversion teeth to distribute along the circumferential direction on the cap body, every adjacent two a guiding gutter has between the water conservancy diversion tooth, every correspond under the water conservancy diversion tooth and set up one main fire hole, steady flame hole is including corresponding every main fire hole that sets up under the main fire hole.

2. The fire cover according to claim 1, wherein the flame stabilizing holes further comprise a secondary flame stabilizing hole between adjacent two of the primary flame stabilizing holes.

3. The fire lid of claim 1, wherein the cap body has a top surface with a water receiving chamber recessed toward the top wall.

4. The fire cover according to claim 3, wherein the cap body forms a chamber sidewall around the water containing chamber, and the chamber sidewall has a water discharge hole communicating the water containing chamber with the outside.

5. The fire cover of claim 4, wherein the center of said drain hole is located in the same vertical plane as the center of one of said main fire holes.

6. The fire cover according to claim 5, wherein the center line of the drainage hole has an angle α with the horizontal plane, α being 0 ° to 60 °.

7. The fire cover according to claim 5, wherein the maximum diameter of the drain hole forms a width W of the drain hole, the maximum width of the guide groove is L, the maximum thickness of the guide tooth is M, and W is M + 2L.

8. The fire cover of claim 7, wherein the diameter of the main fire hole is D, and M ≧ D.

9. The fire cover according to claim 1, wherein the main fire hole has a fire outlet provided on an outer side surface of the side wall, the deflector tooth has a lower surface, and a distance P between a top of the fire outlet and the lower surface is 0.5mm to 1 mm.

10. The fire cover according to any one of claims 1 to 9, wherein the teeth height h of the flow guide teeth is 2.7mm to 2.9 mm.

11. A burner comprising a fire cover as claimed in any one of claims 1 to 10.

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