CN208058847U - Fire cover, burner and gas cooker - Google Patents

Abstract

The utility model discloses a kind of fire cover, burner and gas cooker, wherein, which includes inner fire cover and external ring fire cover, and the inside of the inner fire cover is formed with inner ring gas chamber, there is the inner fire cover center cavity open upward, the inner ring gas chamber to be located at the periphery of the center cavity；The internal perisporium of the center cavity is equipped with the inner ring fire hole being connected to the inner ring gas chamber；The periphery wall of the inner fire cover is equipped with air inlet, and the inside of the inner fire cover is additionally provided with the air intake passage for being connected to the air inlet and the center cavity.The utility model fire cover can realize the minimum flame combustion of inner ring, and flame that can be internally at ring fire hole by air intake passage provides auxiliary air supplement so that the fuel gas buring at inner ring fire hole is more abundant.

Description

Fire hoods, burners and gas cooktops

technical field

The utility model relates to the technical field of kitchen utensils, in particular to a fire cover, a burner and a gas cooker.

Background technique

The central area of the existing burner is mostly closed, so that the air can only be replenished from the outer peripheral surface of the burner. For the burner with multiple ring fire holes, the inner ring fire holes are often caused by insufficient air supply. Gas burns insufficiently. And in the cooking process, the phenomenon of overflowing the pot often occurs, such as porridge, soup and other overflows flowing out of the pot and dripping to the surface of the burner, causing the overflows to be unable to be discharged voluntarily. If it is not cleaned in time, the fire hole of the burner will be blocked in the long run, which will greatly reduce the firepower of the burner, and even cause the gas to flow back and cause a safety accident.

Utility model content

The main purpose of the utility model is to propose a fire cover, aiming at solving the technical problem of insufficient secondary air replenishment at the fire hole of the inner ring of the existing burner, resulting in insufficient combustion.

In order to achieve the above object, the fire cover proposed by the utility model includes an inner fire cover and an outer ring fire cover, an inner ring gas chamber is formed inside the inner fire cover, and the inner fire cover has a central cavity open upward, The inner ring gas cavity is located at the periphery of the central cavity; the inner peripheral wall of the central cavity is provided with an inner ring fire hole communicating with the inner ring gas cavity; the outer peripheral wall of the inner fire cover is provided with an air inlet, The inside of the inner fire cover is also provided with an air inlet passage connecting the air inlet and the central chamber.

Preferably, there are multiple air inlets, and the multiple air inlets are arranged at intervals along the circumference of the inner fire cover.

Preferably, the central cavity has a bottom wall and a side wall extending upward from the periphery of the bottom wall, and the side wall is configured as a tapered surface tapered from top to bottom.

Preferably, the air inlet passage extends radially from the air inlet and passes through the side wall, and the bottom wall is provided with a guide groove extending radially and communicating with the air inlet passage.

Preferably, the outer peripheral wall of the inner fire cover is provided with several detection fire holes adjacent to the air inlet, and a fire transmission groove connecting the detection fire holes and the inner ring gas chamber is formed in the inner fire cover.

Preferably, a middle-ring gas chamber is formed inside the inner fire cover, and a middle-ring gas chamber is arranged around the periphery of the inner-ring gas chamber, and a middle-ring fire hole communicating with the middle-ring gas chamber is provided on the outer peripheral surface of the inner fire cover.

Preferably, the inner fire cover includes a seat body and an annular upper cover that is detachably covered on the top of the seat body;

The inner peripheral edge of the top surface of the seat body is provided with a plurality of inner ring fire teeth at intervals along the circumferential direction, and any two adjacent inner ring fire teeth and the upper cover are enclosed to form the inner ring fire hole;

The outer peripheral edge of the top surface of the base body is provided with a plurality of middle ring fire teeth at intervals along the circumferential direction, and the middle ring fire hole is formed between any adjacent two of the middle ring fire teeth and the upper cover.

Preferably, the seat body includes an inner disc body, an outer ring body and a connecting pipe, the outer ring body spacer ring is arranged on the periphery of the inner disc body, and the inner ring fire teeth are located on the top surface of the inner disc body, so The middle ring fire tooth is located on the top surface of the outer ring body, one end of the connecting pipe is connected to the inner disc body, and the other end is connected to the outer ring body, and the inner part of the connecting pipe is formed with the wind channel.

The utility model also proposes a burner, which includes:

Stove;

gas distribution seat, located on the burner head; and

a fire cover, the fire cover is fastened to the top of the gas distribution seat;

Wherein, the fire cover includes an inner fire cover and an outer ring fire cover, and an inner ring gas chamber is formed inside the inner fire cover, and the inner fire cover has an upwardly open central cavity, and the inner ring gas chamber Located on the periphery of the central chamber; the inner peripheral wall of the central chamber is provided with an inner ring fire hole communicating with the inner ring gas chamber; the outer peripheral wall of the inner fire cover is provided with an air inlet, and the inner fire cover An air inlet passage connecting the air inlet and the central cavity is also provided inside.

The utility model also proposes a gas cooker, which includes a burner, and the burner includes:

Stove;

gas distribution seat, located on the burner head; and

a fire cover, the fire cover is fastened to the top of the gas distribution seat;

Wherein, the fire cover includes an inner fire cover and an outer ring fire cover, and an inner ring gas chamber is formed inside the inner fire cover, and the inner fire cover has an upwardly open central cavity, and the inner ring gas chamber Located on the periphery of the central chamber; the inner peripheral wall of the central chamber is provided with an inner ring fire hole communicating with the inner ring gas chamber; the outer peripheral wall of the inner fire cover is provided with an air inlet, and the inner fire cover An air inlet passage connecting the air inlet and the central cavity is also provided inside.

The technical scheme of the utility model sets a central cavity on the inner fire cover, and at the same time sets an inner ring fire hole on the inner peripheral wall of the central cavity. Compared with the traditional inner fire cover, the inner ring fire hole is arranged on the outer peripheral wall. The fire holes in the inner ring are more concentrated in the middle of the inner fire cover, which can achieve extremely small fire combustion. Moreover, the fire outlet of the inner ring fire hole faces the central cavity, so that the flame ejected from the inner ring fire hole is not easily affected by the external environment (such as wind force, overflowing pot, etc.), so that the continuous and stable combustion of the extremely small fire can be maintained. In addition, by setting the air inlet channel, the external air can be transported from the air inlet to the central cavity through the air inlet channel, and then provide oxygen supply for the flame at the inner ring fire hole, so that the combustion of the gas at the inner ring fire hole is more complete.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the present utility model, and those skilled in the art can also obtain other drawings according to the structures shown in these drawings without creative work.

Fig. 1 is the structural representation of an embodiment of the utility model burner;

Fig. 2 is the schematic diagram of the exploded structure of the burner in Fig. 1;

Fig. 3 is the structural representation of an embodiment of the utility model fire cover;

Fig. 4 is a schematic structural view of the inner fire cover in Fig. 3;

Fig. 5 is a structural schematic diagram of another viewing angle of the inner fire cover in Fig. 4;

Fig. 6 is a schematic structural view of the base of the inner fire cover in Fig. 4;

Fig. 7 is a schematic top view of the base in Fig. 6;

Fig. 8 is a schematic cross-sectional structure diagram of the seat body along section A-A in Fig. 7 .

Explanation of reference numbers:

label name label name label name 10 fire cover 15 fire hole detection 184 exosome 1 Inner fire cover 16 Fire Chute 185 Connecting pipe 11 Inner ring gas chamber 17 Central Gas Chamber 1b cover 111 Inner Ring Fire Hole 171 Central Fire Hole 2 outer ring fire cover 12 central lumen 1a Body 100 burner 13 Inlet 181 inner fire teeth 30 Stove 131 Air intake channel 182 Fire Teeth, Central 20 air seat 14 Diversion tank 183 Inner plate 40 thermocouple

The realization of the purpose of the utility model, functional characteristics and advantages will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

It should be noted that if there is a directional indication (such as up, down, left, right, front, back...) in the embodiment of the present utility model, the directional indication is only used to explain the position in a certain posture (as shown in the accompanying drawing). If the relative positional relationship, movement conditions, etc. between the components shown in the figure below are changed, if the specific posture changes, the directional indication will also change accordingly.

In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present utility model, the descriptions of "first", "second", etc. Implying their relative importance or implying the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In addition, the technical solutions of the various embodiments can be combined with each other, but it must be based on the realization of those skilled in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist , also not within the scope of protection required by the utility model.

The utility model proposes a fire cover 10 which is used for a burner 100 . Please refer to FIG. 1 and FIG. 2 , specifically, the burner 100 includes a burner head 30 , a gas distribution seat 20 and a fire cover 10 , the gas distribution seat 20 is arranged on the burner head 30 , and the fire cover 10 is fastened to the gas distribution seat 20 bottom. The external gas pipeline communicates with the injection pipe of the burner head 30 , and the gas is delivered to the internal gas chamber of the fire cover 10 through the injection pipe and the gas distribution seat 20 in sequence.

In this utility model embodiment, as shown in Figure 3 to Figure 6, the fire cover 10 includes an inner fire cover 1 and an outer ring fire cover 2, an inner ring gas chamber 11 is formed inside the inner fire cover 1, and the inner fire cover 1 1 has a central cavity 12 open upward, the inner ring gas chamber 11 is located at the periphery of the central cavity 12; the inner peripheral wall of the central cavity 12 is provided with an inner ring fire hole 111 communicating with the inner ring gas chamber 11; An air inlet 13 is provided on the outer peripheral wall, and an air inlet passage 131 connecting the air inlet 13 and the central cavity 12 is provided inside the inner fire cover 1 .

In this embodiment, the inner fire cover 1 has a central cavity 12 open upward, wherein the central cavity 12 can extend in the up and down direction to penetrate the top surface and the bottom surface of the inner fire cover 1, or can be formed from the inner fire cover. The top surface of 1 is sunken downwards and formed. The inner ring fire hole 111 is set on the inner peripheral wall of the center cavity 12 and communicates with the inner ring gas cavity 11, so that the gas in the inner ring gas cavity 11 can be ignited at the inner ring fire hole 111 and the flame can be ejected towards the direction of the center cavity 12 , so that the inner ring flame is more concentrated in the middle of the inner fire cover 1, which can realize the inner ring extremely small fire combustion, and can effectively avoid the influence of the external environment (such as wind, dripping water, dripping oil, etc.), making the inner ring extremely small flame Can burn more stably. The shape of the inner ring fire hole 111 may be circular, square, triangular or other special-shaped holes, etc., and is not specifically limited here. The outer peripheral wall of the inner fire cover 1 is provided with an air inlet 13, and the air inlet passage 131 communicates with the air inlet 13 and the central chamber 12, and the external air can enter the central chamber 12 from the air inlet 13 through the air inlet passage 131, and then the inner ring fire hole 111 The flame at the place provides oxygen supply, so that the combustion gas at the inner ring fire hole 111 is more fully. The outer ring fire cover 2 and the spacer ring are arranged on the periphery of the inner fire cover 1 , and an air intake gap communicated with the air inlet 13 is formed between the outer ring fire cover 2 and the inner fire cover 1 .

The technical scheme of the utility model is provided with a central cavity 12 on the inner fire cover 1, and an inner ring fire hole 111 is set on the inner peripheral wall of the center cavity 12 at the same time. wall, the inner ring fire holes 111 in this technical solution are more concentrated in the middle of the inner fire cover 1, which can realize extremely small fire combustion. Moreover, the fire outlet of the inner ring fire hole 111 faces the central cavity 12, so that the flame ejected from the inner ring fire hole 111 is not easily affected by the external environment (such as wind force, overflowing pot, etc.), so that the continuous stability of the extremely small fire can be maintained. burning. In addition, by setting the air inlet channel 131, the external air can be transported from the air inlet 13 to the central cavity 12 through the air inlet channel 131, and then provide oxygen supply for the flame at the inner ring fire hole 111, so that the gas at the inner ring fire hole 111 Combustion is more complete.

Further, there are multiple air inlets 13 , and the multiple air inlets 13 are arranged at intervals along the circumference of the inner fire cover 1 . In this embodiment, by setting a plurality of air inlets 13, correspondingly, a plurality of air inlet passages 131 corresponding to the air inlets 13 are formed inside the inner fire cover 1, so as to ensure that the air supply at the inner ring fire hole 111 is more efficient. full. Preferably, a plurality of air inlets 13 are spaced and evenly arranged along the circumference of the inner fire cover 1 , so that the secondary air inside the central cavity 12 is distributed more evenly.

Further, please refer to FIG. 8 , the central cavity 12 has a bottom wall and a side wall extending upward from the periphery of the bottom wall, and the side wall is set in a tapered surface that tapers from top to bottom. In this embodiment, the central cavity 12 has a bottom wall and a side wall. If a pot overflow occurs during cooking, overflows (such as water and oil, etc.) The surface stays for a long time, and the inner ring fire hole 111 is blocked. Preferably, the inner peripheral wall of the central cavity 12 is set on a tapered surface that tapers from top to bottom, which can play a good role in guiding the overflow, so that the overflow can quickly drop into the central cavity 12, thereby effectively Prevent spillage from clogging the inner ring fire holes 111.

Furthermore, the air inlet passage 131 extends radially from the air inlet 13 and penetrates through the sidewall, and the bottom wall is provided with a guide groove 14 extending radially and communicating with the air inlet passage 131 . In this embodiment, the air inlet passage 131 is designed to extend radially, which is simple in structure and easy to form. For example, the cylindrical air inlet passage 131 can be directly punched out by a punching and drilling forming process. The bottom wall is provided with a diversion groove 14 communicating with the air inlet passage 131, so that overflows (such as water, oil, etc.) accumulated in the central chamber 12 can be discharged through the air inlet passage 131 under the diversion action of the diversion groove 14 This facilitates timely cleanup of spills.

Further, in order to facilitate the spillage to be smoothly discharged through the air inlet passage 131, the air inlet passage 131 extends radially and obliquely upward from the air inlet 13 to communicate with the guide groove 14. In this embodiment, the air inlet channel 131 extends obliquely downward from the guide groove 14 to the air inlet 13 , so that the overflow can be smoothly discharged through the air inlet channel 131 under the action of gravity. Of course, in other embodiments, the bottom surface of the air inlet channel 131 and the bottom surface of the guide groove 14 may also be flat and smoothly connected. In actual processing, the air inlet channel 131 and the diversion groove 14 can be integrally formed by using the punching and drilling process, which is simple in process and convenient for processing.

Further, please refer to Fig. 6 and Fig. 8, the outer peripheral wall of the inner fire cover 1 is provided with a plurality of detection fire holes 15 adjacent to the air inlet 13, and a connection between the detection fire holes 15 and the inner ring gas chamber 11 is formed in the inner fire cover 1. Fire transmission tank 16. In this embodiment, the outer peripheral wall of the inner fire cover 1 is provided with a detection fire hole 15 , and the detection fire hole 15 communicates with the inner ring gas chamber 11 through the fire transmission groove 16 . The thermocouple 40 of the burner 100 is arranged on the outside of the inner fire cover 1, and is arranged near the detection fire hole 15, to detect the temperature at the detection fire hole 15, thereby controlling the switch of the gas valve.

Specifically, the gas flows from the inner ring gas chamber 11 to the detection fire hole 15 through the fire transmission groove 16, and is ignited at the detection fire hole 15 to generate a flame. If the temperature is higher, it is judged that the gas cooker is burning normally, so the gas valve is controlled to open; and when the flame at the detection fire hole 15 is extinguished, the temperature measured by the thermocouple 40 is lower, so it is judged that the gas cooker stops working, so the gas valve is controlled Close to avoid gas leakage. The aperture of the detection fire hole 15 is generally small, and generally there are multiple detection fire holes 15, and the multiple detection fire holes 15 are arranged in a matrix.

When the gas cooker is turned to a small fire, that is, when the gas is concentrated in the inner ring fire hole 111 and burns alone, only a small amount of gas flows out of the detection fire hole 15, and the flame at the detection fire hole 15 is small and is easy to be blown by the wind Therefore, in order to prevent the misjudgment phenomenon of the thermocouple 40, the flame generated by the inner ring fire hole 111 can be transferred to the detection fire hole 15 by setting the fire transmission groove 16, and the gas at the detection fire hole 15 is quickly ignited to ensure Detect the normal combustion of the fire hole 15, thereby avoiding misjudgment. Thereby ensure the continuous and stable combustion of the very small fire at the inner ring fire hole 111 place. At the same time, the detection fire hole 15 is arranged adjacent to the air inlet 13. Since the air inlet passage 131 extends from the air inlet 13 and communicates with the central cavity 12, the flame of the inner ring fire hole 111 can also be transmitted from the air inlet passage 131 to the air inlet 13. , and then ignite the gas at the detection fire hole 15 places, so that the air inlet channel 131 can also play a certain role of fire transmission at the same time, further ensuring the normal combustion of the detection fire hole 15 places gas.

Further, the inside of the inner fire cover 1 is also formed with a middle ring gas chamber 17 which is arranged around the outer periphery of the inner ring gas chamber 11 . In this embodiment, the inner fire cover 1 is provided with an inner ring fire hole 111 and a middle ring fire hole 171, so that the inner ring fire and the middle ring fire of the burner 100 can be realized through a single inner fire cover 1, and then combined with The combination of the outer ring fire cover 2 can realize the three-ring fire of the burner 100, so that the burner 100 has a wide range of firepower adjustment, which can well meet the user's needs for slow cooking or stir frying.

Further, the inner fire cover 1 includes a seat body 1a and an annular upper cover 1b detachably covering the top of the seat body 1a; the inner peripheral edge of the top surface of the seat body 1a is provided with a plurality of inner ring fire teeth 181 at intervals along the circumferential direction, Any adjacent two inner ring fire teeth 181 and the upper cover 1b are surrounded to form an inner ring fire hole 111; the outer peripheral edge of the top surface of the seat body 1a is provided with a plurality of middle ring fire teeth 182 at intervals along the circumferential direction, and any two adjacent middle ring The middle ring fire hole 171 is enclosed between the fire tooth 182 and the upper cover 1b.

In this embodiment, the inner fire cover 1 is composed of two parts, the base body 1a and the upper cover 1b. When molding, the base body 1a and the upper cover 1b can be formed separately, and then the two can be assembled together. The manufacturing and processing difficulty of the inner fire cover 1 is reduced, and the production cost can be effectively reduced. The upper cover 1b can be detachably covered on the base body 1a. For example, the upper cover 1b and the base body 1a can be fixed by inserting or clamping. The upper cover 1b is arranged in a ring shape and has an inner hole, the top surface of the seat body 1a corresponding to the inner hole of the upper cover 1b is recessed downward to form a central cavity 12, and the upper cover 1b and the seat body 1a are surrounded to form There are inner ring gas chambers 11 and middle ring gas chambers 17 arranged at independent intervals.

Both the inner ring fire hole 111 and the middle ring fire hole 171 are surrounded by two parts. Specifically, a number of strip-shaped holes can be formed on the inner peripheral edge of the inner fire cover 1 by die-casting, and two adjacent shaped holes are formed. Inner ring fire tooth 181; Similarly, by die-casting, the outer peripheral edge of inner fire cover 1 forms a number of strip-shaped holes, and the middle ring fire tooth 182 is formed between adjacent two shaped holes, and the manufacturing process is simple.

In the traditional process, the inner fire cover 1 is usually an integrally formed casting, and the fire outlet hole is usually a circular hole formed by punching and drilling. In this way, after long-term use, foreign matter accumulates at the fire outlet hole, which makes the fire outlet hole very easy to block. And it is also extremely inconvenient to clean up after the fire hole is blocked, thereby affecting the normal use of the burner 100. In this embodiment, the inner ring fire hole 111 is formed by surrounding two adjacent inner ring fire teeth 181 and the upper cover 1b, and the middle ring fire hole 171 is formed by surrounding two adjacent middle ring fire teeth 182 and the upper cover 1b, so that the inner The fire outlets of the ring fire hole 111 and the middle ring fire hole 171 are roughly rectangular in shape. The user can regularly remove the upper cover 1b to clean the foreign matter in the inner ring fire hole 111 and the middle ring fire hole 171, thereby effectively solving the problem that the inner ring fire hole 111 and the middle ring fire hole 171 are easily blocked.

Further, please refer to FIG. 8 , the seat body 1a includes an inner disc body 183, an outer ring body 184 and a connecting pipe 185, the outer ring body 184 is arranged on the outer periphery of the inner disc body 183, and the inner ring fire tooth 181 is located on the top of the inner disc body 183 On the surface, the middle ring fire tooth 182 is located on the top surface of the outer ring body 184, one end of the connecting pipe 185 is connected with the inner disk body 183, and the other end is connected with the outer ring body 184, and the inside of the connecting pipe 185 is formed with an air inlet passage 131.

In this embodiment, the outer ring body 184 and the inner disc body 183 are arranged at intervals to form the middle ring gas chamber 17, the inner ring fire tooth 181 is located on the side of the top surface of the inner disc body 183 close to the central cavity 12, and the outer peripheral edge of the inner disc body 183 An annular baffle is provided, and an inner ring gas chamber 11 is formed between the annular baffle and the inner ring fire teeth 181 . On the one hand, the connecting pipe 185 is used to connect the inner disc body 183 and the outer ring body 184 into one body, which plays a role of connection and fixation; at the same time, the inside of the connecting pipe 185 can form an air inlet duct to supplement the secondary air to the central cavity 12 . The overall structural design of the inner fire cover 1 is ingenious, and the multiple functions of the inner fire cover 1 are realized in a limited space, and the overall structure is compact.

The utility model also proposes a gas cooker. The gas cooker includes a burner 100. The burner 100 includes a burner 30, a gas distribution seat 20 and a fire cover 10. The specific structure of the fire cover 10 refers to the above-mentioned embodiment. The gas cooker adopts all the technical solutions of all the above-mentioned embodiments, and therefore at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, and will not repeat them one by one here.

The above is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. Under the inventive concept of the utility model, the equivalent structural transformation made by using the specification of the utility model and the contents of the accompanying drawings, or Direct/indirect application in other related technical fields is included in the patent protection scope of the present utility model.

Claims (10)

1. the inside of a kind of fire cover, including inner fire cover and external ring fire cover, the inner fire cover is formed with inner ring gas chamber, feature exists In there is the inner fire cover center cavity open upward, the inner ring gas chamber to be located at the periphery of the center cavity；The center The internal perisporium of chamber is equipped with the inner ring fire hole being connected to the inner ring gas chamber；The periphery wall of the inner fire cover is equipped with air inlet, institute The inside for stating inner fire cover is additionally provided with the air intake passage for being connected to the air inlet and the center cavity.

2. fire cover as described in claim 1, which is characterized in that the air inlet has multiple, and multiple air inlets are described in The circumferentially-spaced arrangement of inner fire cover.

3. fire cover as described in claim 1, which is characterized in that the center cavity have bottom wall and from the periphery of the bottom wall to The side wall of upper extension, the side wall is in taper surface setting tapered from up to down.

4. fire cover as claimed in claim 3, which is characterized in that the air intake passage is radially extended from the air inlet and passed through The side wall is worn, the bottom wall is equipped with the diversion trench for radially extending and being connected to the air intake passage.

5. fire cover as claimed in claim 3, which is characterized in that the periphery wall of the inner fire cover is equipped with adjacent to the air inlet Several detection fire holes are formed with the biography fire slot for being connected to the detection fire hole and the inner ring gas chamber in the inner fire cover.

6. the fire cover as described in claim 1 to 5 any one, which is characterized in that the inside of the inner fire cover is also formed with ring Middle ring gas chamber set on the inner ring gas chamber periphery, the peripheral surface of the inner fire cover is equipped with to be connected to the middle ring gas chamber Middle ring fire hole.

7. fire cover as claimed in claim 6, which is characterized in that the inner fire cover includes pedestal and detachable cover together in the seat The upper cover of annular at the top of body；

The inner peripheral of the pedestal top surface is circumferentially spaced to be equipped with multiple interior ring fire teeth, interior ring fire tooth and institute described in arbitrary neighborhood two It states and is enclosed the inner ring fire hole between upper cover；

The outer peripheral edge of the pedestal top surface is circumferentially spaced to be equipped with multiple middle ring fire teeth, middle ring fire tooth and institute described in arbitrary neighborhood two It states and is enclosed the middle ring fire hole between upper cover.

8. fire cover as claimed in claim 7, which is characterized in that the pedestal includes inner tray, outer ring body and connecting tube, described Outer ring body spacer ring is set to the periphery of the inner tray, and the interior ring fire tooth position is in the top surface of the inner tray, the middle ring fire Tooth position connects in the top surface of the outer ring body, one end of the connecting tube with the inner tray, the other end and the outer ring body phase It connects, the inside of the connecting tube is formed with the air intake passage.

9. a kind of burner, which is characterized in that including：

Burner；

Gas separating seat is set on the burner；And

Fire cover as described in claim 1 to 8 any one, top of the lid for fire cover together in the gas separating seat.

10. a kind of gas cooker, which is characterized in that including burner as claimed in claim 9.