CN221076467U - Upper air inlet burner - Google Patents

Abstract

The utility model discloses an upper air inlet burner, which comprises a base, a fire cover seat, an air distribution plate and an outer ring fire cover, wherein the fire cover seat is arranged on the base; the top surface of the base is fixed with a nozzle seat, the top surface of the nozzle seat is fixed with a first nozzle, the first nozzle is positioned above the base, and the base is provided with an air inlet communicated with the first nozzle; the fire cover seat is arranged on the top surface of the base; the air distribution plate is fixed on the inner side of the fire cover seat, an outer ring injection channel and an outer ring mixing groove are formed by encircling the air distribution plate and the fire cover seat, the outer ring fire cover is arranged on the outer ring mixing groove, the outer ring injection channel is communicated with the outer ring mixing groove, and the first nozzle faces the outer ring injection channel; the bottom surface of the fire cover seat is provided with an opening penetrating through the fire cover seat, the nozzle seat penetrates through the opening, the two sides of the nozzle seat are provided with supporting blocks, and the two supporting blocks are abutted against the bottom surface of the fire cover seat; the top surface of base is provided with the boss, and the bottom surface of fire lid seat is provided with the lug that corresponds with the boss, and the lug is kept flat on the boss. The utility model can make the fire cover seat stably placed on the base.

Description

Upper air inlet burner

Technical Field

The utility model relates to the technical field of gas stoves, in particular to a burner with upper air inlet.

Background

Currently, the upper air inlet burner is more and more widely applied to related products such as gas cookers, integrated cooking centers and the like. The upper air inlet burner generally comprises a base, an air distribution disc assembly and a fire cover, wherein the base is fixedly provided with a nozzle, the air distribution disc assembly and the fire cover are convenient to clean, the parts are not locked and fixed, but are in a similar stacked state, so that the upper air inlet burner is easier to split, and a similar burner is disclosed in Chinese utility model with publication number of CN 217653848U. Similar to the patent document, the existing upper air intake burner has no good supporting structure between the fire cover seat and the base, so that the fire cover seat is easy to shake, which can affect the subsequent use of the burner.

Disclosure of utility model

The utility model provides an upper air inlet burner which can enable a fire cover seat to be stably placed on a base.

In order to solve the problems, the utility model adopts the following technical scheme:

The embodiment of the utility model provides an upper air inlet burner, which comprises a base, a fire cover seat, an air distribution disc and an outer ring fire cover; the top surface of the base is fixed with a nozzle seat, a first nozzle is fixed on the nozzle seat, the first nozzle is positioned above the base, and an air inlet communicated with the first nozzle is arranged on the base; the fire cover seat is arranged on the top surface of the base; the air distribution plate is fixed on the inner side of the fire cover seat, and the air distribution plate and the fire cover seat are enclosed to form an outer ring injection channel; the gas distribution plate and the fire cover seat are also enclosed to form an outer ring mixing groove, the outer ring fire cover is arranged on the outer ring mixing groove, the outer ring injection channel is communicated with the outer ring mixing groove, and the first nozzle is arranged towards the outer ring injection channel; the bottom surface of the fire cover seat is provided with an opening penetrating through the fire cover seat, the nozzle seat penetrates through the opening, the two sides of the nozzle seat are provided with supporting blocks, and the two supporting blocks are abutted against the bottom surface of the fire cover seat; the top surface of the base is provided with a boss, the bottom surface of the fire cover seat is provided with a bump corresponding to the boss, and the bump is horizontally arranged on the boss; on the top surface of the base, the boss and the two supporting blocks are distributed in a triangle shape.

In some embodiments, the top surface of the base is further provided with a positioning hole, and the bottom surface of the fire cover base is further provided with a positioning piece matched with the positioning hole, and the positioning piece is inserted into the positioning hole.

In some embodiments, the upper air inlet burner further comprises an inner ring fire cover positioned on the inner side of the outer ring fire cover, and a second nozzle is further fixed on the nozzle seat and positioned above the base; the gas distribution plate and the fire cover seat are also enclosed to form an inner ring injection channel; the top surface of divide the gas tray is provided with inner ring mixing tank, inner ring fire lid is established on the inner ring mixing tank, inner ring draws the passageway and mixes the groove intercommunication with the inner ring, the second nozzle is towards the inner ring and draws the passageway arrangement.

In some embodiments, the injection direction of the first nozzle is parallel to the injection direction of the second nozzle, and the extension direction of the outer ring injection channel is parallel to the extension direction of the inner ring injection channel.

In some embodiments, the air inlet is provided with one and the air inlet is also in communication with the second nozzle.

In some embodiments, the first nozzles and the outer ring injection channels are both provided with two, the two outer ring injection channels are respectively located at two sides of the inner ring injection channel, and the two first nozzles are respectively arranged towards the two outer ring injection channels.

In some embodiments, the air inlets are provided in two, the two air inlets being in communication with the first nozzle and the second nozzle, respectively.

In some embodiments, the first nozzles and the outer ring injection channels are two, the two outer ring injection channels are respectively positioned at two sides of the inner ring injection channel, and the two first nozzles are respectively arranged towards the two outer ring injection channels; the two first nozzles are communicated with one air inlet, and the second nozzles are communicated with the other air inlet.

In some embodiments, the fire cover seat comprises an outer ring body which is positioned at the periphery and protrudes upwards, the gas distribution disc is arranged at the inner side of the outer ring body, and the outer ring mixing groove is formed between the gas distribution disc and the outer ring body; the periphery of divide the gas dish is provided with a plurality of installation pieces, the bottom surface of installation piece is provided with the mounting hole, the bottom surface of fire lid seat is provided with a plurality of perforation that run through the fire lid seat, perforation and mounting hole butt joint one by one, wear to be equipped with the connecting piece in the perforation, the upper end of connecting piece is fixed in the mounting hole.

In some embodiments, the gas distribution plate comprises an inner ring body which is arranged at the top of the gas distribution plate and protrudes upwards, the inner ring mixing groove is arranged on the inner side of the inner ring body, and the bottom wall of the inner ring mixing groove is provided with a gas passing hole communicated with the inner ring injection channel.

The utility model has at least the following beneficial effects: according to the utility model, the supporting blocks are arranged on both sides of the nozzle seat, both the supporting blocks are abutted against the bottom surface of the fire cover seat, the top surface of the base is provided with the boss, the bottom surface of the fire cover seat is provided with the convex block corresponding to the boss, the convex block is horizontally arranged on the boss, the boss and the two supporting blocks are distributed in a triangle shape on the top surface of the base to form a three-point supporting structure, and the fire cover seat is not easy to shake on the top surface of the base, so that the fire cover seat is stably placed on the base.

Drawings

Fig. 1 is a schematic structural view of embodiment 1;

FIG. 2 is a schematic cross-sectional view of example 1;

FIG. 3 is an exploded view of example 1;

FIG. 4 is an exploded view of embodiment 1 at another perspective;

fig. 5 is a schematic structural view of embodiment 2;

FIG. 6 is a schematic cross-sectional view of example 2;

FIG. 7 is an exploded view of example 2;

fig. 8 is a schematic structural view of embodiment 3;

FIG. 9 is a schematic cross-sectional view of example 3;

FIG. 10 is an exploded view of example 3;

Fig. 11 is a schematic structural view of embodiment 4;

FIG. 12 is a schematic cross-sectional view of example 4;

FIG. 13 is an exploded view of example 4;

fig. 14 is a schematic structural view of embodiment 5;

FIG. 15 is a schematic cross-sectional view of example 5;

fig. 16 is an exploded view of example 5.

Wherein, the reference numerals are as follows:

a base 100, a positioning hole 110 and a boss 120;

Fire cover base 200, positioning piece 210, protruding block 220, opening 230, perforation 240, outer ring 250 and connecting piece 260;

A gas distribution plate 300, a cover cap 310, a mounting block 320, an inner ring body 330 and a gas passing hole 340;

An outer ring fire cover 400, an outer ring fire hole 410;

The nozzle holder 500, the supporting block 501, the first nozzle 510, the second nozzle 520, the air inlet 530;

An outer ring injection passage 610, an inner ring injection passage 620;

An outer ring mixing tank 710, an inner ring mixing tank 720;

An inner ring fire cover 800, and an inner ring fire hole 810.

Detailed Description

The following description is provided with reference to the accompanying drawings to assist in a comprehensive understanding of various embodiments of the utility model as defined in the claims and their equivalents. The description includes various specific details to aid in understanding, but these details should be regarded as merely exemplary. Accordingly, those skilled in the art will recognize that various changes and modifications of the various embodiments described herein can be made without departing from the scope and spirit of the utility model.

In the description of the present utility model, references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, only for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

It will be understood that when an element (e.g., a first element) is "connected" to another element (e.g., a second element), the element can be directly connected to the other element or there can be intervening elements (e.g., a third element) between the element and the other element.

Example 1:

Embodiments of the present utility model provide an upper air intake burner, as shown in fig. 1 to 4, comprising a base 100, a fire cover base 200, an air distribution plate 300, and an outer ring fire cover 400. The nozzle holder 500 is fixed to the base 100, and a first nozzle 510 is fixed to the nozzle holder 500, and the first nozzle 510 is located above the base 100, thereby forming an upper air intake structure. The base 100 is provided with an air inlet 530 communicating with the first nozzle 510, and the air inlet 530 may be connected to an external gas line to supply gas to the first nozzle 510. The fire cover base 200 is placed on the top surface of the base 100, so that the fire cover base 200 is conveniently detached from the base 100 and is convenient to clean. The gas distribution plate 300 is fixed on the inner side of the fire cover seat 200, and the gas distribution plate 300 and the fire cover seat 200 are enclosed to form an outer ring injection channel 610. The gas separation disc 300 and the fire cover seat 200 are also enclosed to form an outer ring mixing groove 710, the outer ring fire cover 400 is arranged on the outer ring mixing groove 710 in a covering manner to cover the outer ring mixing groove 710, the outer ring fire cover 400 is provided with an outer ring fire hole 410 communicated with the outer ring mixing groove 710, the outlet end of the outer ring injection channel 610 is communicated with the outer ring mixing groove 710, and the first nozzle 510 is arranged towards the inlet end of the outer ring injection channel 610, so that the first nozzle 510 can inject fuel gas into the outer ring injection channel 610, and outside air enters the outer ring injection channel 610 along with the fuel gas under the action of air flow, so that the fuel gas and the air are mixed in the outer ring mixing groove 710, and finally the fuel gas and the air are sprayed out from the outer ring fire hole 410 to form outer ring flame.

The bottom surface of the fire cover base 200 is provided with an opening 230 penetrating the fire cover base 200, and the nozzle base 500 penetrates the opening 230. The opening 230 may be forward of the inlet end of the injection passage such that after the nozzle holder 500 passes through the opening 230, the nozzle on the nozzle holder 500 may inject fuel gas toward the injection passage. The two sides of the nozzle seat 500 are provided with supporting blocks 501, and the two supporting blocks 501 are abutted against the bottom surface of the fire cover seat 200 to support the fire cover seat 200. The top surface of the base 100 is provided with a boss 120, the bottom surface of the fire cover base 200 is provided with a bump 220, the bump 220 corresponds to the boss 120, specifically, the position of the bump 220 can correspond to the position of the boss 120, both the bottom surface of the bump 220 and the bottom surface of the boss 120 can be provided with planes, and the bump 220 is horizontally placed on the boss 120. On the top surface of the base 100, the boss 120 and the two supporting blocks 501 are distributed in a triangle shape, that is, the boss 120 and the two supporting blocks 501 may be respectively located at three vertex positions of the triangle. Therefore, a three-point support structure is formed for the fire cover base 200, and the fire cover base 200 is not easy to shake on the top surface of the base 100, so that the fire cover base 200 is stably placed on the base 100. Because the fire cover seat 200 is placed on the base 100, after the fire cover seat 200 is removed, the nozzle can be exposed, so that the nozzle can be conveniently replaced to solve the problems of aging and damage of the nozzle after long-term use, and the specification and/or the type of the nozzle can be changed by replacing the nozzle so as to adapt to different gas requirements.

In this embodiment, the top surface of the base 100 is further provided with a positioning hole 110, the bottom surface of the fire cover base 200 is further provided with a positioning member 210, the positioning member 210 is adapted to the positioning hole 110, and specifically, the position, size and shape of the positioning member 210 can be respectively adapted to the position, size and shape of the positioning hole 110. When the fire cover base 200 is placed on the top surface of the base 100, the positioning member 210 is inserted into the positioning hole 110, and the positioning member 210 can limit the fire cover base 200 to move laterally on the top surface of the base 100, so that the fire cover base 200 can be placed on the base 100 more stably.

The nozzle seat 500, the positioning hole 110 and the boss 120 may be sequentially distributed in the same direction, so as to promote the limiting and supporting effects on the fire cover seat 200. Specifically, the distribution directions of the nozzle seat 500, the positioning hole 110 and the boss 120 may pass through the central axis of the fire cover seat 200, which provides a more uniform supporting force to the fire cover seat 200, and further improves the stability of the fire cover seat 200 placed on the base 100.

The gas distribution plate 300 further includes a cover 310 covering over the opening 230 to separate the outer ring mixing tank 710 from the opening 230 by the cover 310, avoiding gas leakage in the outer ring mixing tank 710.

In this embodiment, the base 100 is provided with an air inlet channel extending to the nozzle holder 500, one end of the air inlet channel forms an air inlet 530, and the other end is communicated with the first nozzle 510. The nozzle holder 500 may be integrally connected with the base 100 to facilitate manufacturing and molding, and the first nozzle 510 may be fixed to a side of the nozzle holder 500.

In this embodiment, the fire cover base 200 includes an outer ring body 250 disposed at the outer periphery thereof and protruding upward, and the gas distribution plate 300 is disposed at the inner side of the outer ring body 250, and an outer ring mixing groove 710 is formed between the gas distribution plate 300 and the outer ring body 250. The peripheral surface of the gas distribution plate 300 is provided with a plurality of mounting blocks 320, the bottom surface of the mounting blocks 320 is provided with mounting holes, the bottom surface of the fire cover seat 200 is provided with a plurality of through holes 240 penetrating through the fire cover seat 200, the through holes 240 are in one-to-one butt joint with the mounting holes, connecting pieces 260 are penetrated in the through holes 240, and the upper ends of the connecting pieces 260 are fixed in the mounting holes so as to fix the gas distribution plate 300 on the fire cover seat 200 through the connecting pieces 260.

Wherein, the connecting piece 260 can be a screw, the mounting hole is a threaded hole, the screw can be fixed in the threaded hole by screwing the screw, the operation is easier, the gas distribution plate 300 and the fire cover seat 200 are conveniently assembled together, and the gas distribution plate 300 and the fire cover seat 200 are also conveniently disassembled.

Example 2:

Embodiments of the present utility model provide an upper air intake burner, as shown in fig. 5-7, comprising a base 100, a fire cover seat 200, an air distribution plate 300, an outer annular fire cover 400, and an inner annular fire cover 800. The nozzle holder 500 is fixed to the base 100, and a first nozzle 510 and a second nozzle 520 are fixed to the nozzle holder 500, and the first nozzle 510 and the second nozzle 520 are located above the base 100, thereby forming an upper air intake structure. The base 100 is provided with an air inlet 530, and the air inlet 530 communicates with both the first nozzle 510 and the second nozzle 520. The gas inlet 530 may be connected to an external gas line to supply gas to the first nozzle 510 and the second nozzle 520. The fire cover base 200 is placed on the top surface of the base 100, so that the fire cover base 200 is conveniently detached from the base 100 and is convenient to clean. The gas separation disc 300 is fixed on the inner side of the fire cover seat 200, and the gas separation disc 300 and the fire cover seat 200 are enclosed to form an outer ring injection channel 610 and an inner ring injection channel 620, and the outer ring injection channel 610 and the inner ring injection channel 620 are independent from each other. The gas separation disc 300 and the fire cover seat 200 are also enclosed to form an outer ring mixing groove 710, the outer ring fire cover 400 is arranged on the outer ring mixing groove 710 in a covering manner, the outer ring fire cover 400 is provided with an outer ring fire hole 410 communicated with the outer ring mixing groove 710, the outlet end of the outer ring injection channel 610 is communicated with the outer ring mixing groove 710, and the first nozzle 510 is arranged towards the inlet end of the outer ring injection channel 610. In this way, the first nozzle 510 can spray the fuel gas to the outer ring injection channel 610, and the external air enters the outer ring injection channel 610 along with the fuel gas under the action of the air flow, so that the fuel gas and the air are mixed in the outer ring mixing tank 710, and finally sprayed out from the outer ring flame holes 410 to form the outer ring flame. The top surface of the gas distribution plate 300 is provided with an inner ring mixing groove 720, an inner ring fire cover 800 is arranged on the inner ring mixing groove 720 in a covering manner, the inner ring fire cover 800 is provided with an inner ring fire hole 810 communicated with the inner ring mixing groove 720, the outlet end of the inner ring injection channel 620 is communicated with the inner ring mixing groove 720, and the second nozzle 520 is arranged towards the inlet end of the inner ring injection channel 620. In this way, the second nozzle 520 can inject the fuel gas into the inner ring injection channel 620, and the external air enters the inner ring injection channel 620 along with the fuel gas under the action of the air flow, so as to mix the fuel gas and the air in the inner ring mixing tank 720, and finally, the fuel gas and the air are sprayed out from the inner ring flame holes 810, so as to form an inner ring flame.

The bottom surface of the fire cover base 200 is provided with an opening 230 penetrating the fire cover base 200, and the nozzle base 500 penetrates the opening 230. The opening 230 may be forward of the inlet end of the injection passage such that after the nozzle holder 500 passes through the opening 230, the nozzle on the nozzle holder 500 may inject fuel gas toward the injection passage. The two sides of the nozzle seat 500 are provided with supporting blocks 501, and the two supporting blocks 501 are abutted against the bottom surface of the fire cover seat 200 to support the fire cover seat 200. The top surface of the base 100 is provided with a boss 120, the bottom surface of the fire cover base 200 is provided with a bump 220, the bump 220 corresponds to the boss 120, specifically, the position of the bump 220 can correspond to the position of the boss 120, both the bottom surface of the bump 220 and the bottom surface of the boss 120 can be provided with planes, and the bump 220 is horizontally placed on the boss 120. On the top surface of the base 100, the boss 120 and the two supporting blocks 501 are distributed in a triangle shape, that is, the boss 120 and the two supporting blocks 501 may be respectively located at three vertex positions of the triangle. Therefore, a three-point support structure is formed for the fire cover base 200, and the fire cover base 200 is not easy to shake on the top surface of the base 100, so that the fire cover base 200 is stably placed on the base 100. Because the fire cover seat 200 is placed on the base 100, after the fire cover seat 200 is removed, the nozzle can be exposed, so that the nozzle can be conveniently replaced to solve the problems of aging and damage of the nozzle after long-term use, and the specification and/or the type of the nozzle can be changed by replacing the nozzle so as to adapt to different gas requirements. Meanwhile, the embodiment forms a structural design of air inlet of one path and air separation of outer ring flame and inner ring flame respectively, so that the arrangement of air inlet pipelines can be reduced, and the manufacturing cost is reduced.

In this embodiment, the top surface of the base 100 is further provided with a positioning hole 110, the bottom surface of the fire cover base 200 is further provided with a positioning member 210, the positioning member 210 is adapted to the positioning hole 110, and specifically, the position, size and shape of the positioning member 210 can be respectively adapted to the position, size and shape of the positioning hole 110. When the fire cover base 200 is placed on the top surface of the base 100, the positioning member 210 is inserted into the positioning hole 110, and the positioning member 210 can limit the fire cover base 200 to move laterally on the top surface of the base 100, so that the fire cover base 200 can be placed on the base 100 more stably.

The nozzle seat 500, the positioning hole 110 and the boss 120 may be sequentially distributed in the same direction, so as to promote the limiting and supporting effects on the fire cover seat 200. Specifically, the distribution directions of the nozzle seat 500, the positioning hole 110 and the boss 120 may pass through the central axis of the fire cover seat 200, which provides a more uniform supporting force to the fire cover seat 200, and further improves the stability of the fire cover seat 200 placed on the base 100.

The gas distribution plate 300 further includes a cover 310 covering over the opening 230 to separate the outer ring mixing tank 710 from the opening 230 by the cover 310, avoiding gas leakage in the outer ring mixing tank 710.

In this embodiment, the base 100 is provided with an air inlet channel extending to the nozzle holder 500, one end of the air inlet channel forms an air inlet 530, and the other end forms two branches, which are respectively communicated with the first nozzle 510 and the second nozzle 520. The nozzle holder 500 may be integrally connected with the base 100 to facilitate manufacturing and molding.

The first nozzle 510 and the second nozzle 520 may be fixed to sides of the nozzle holder 500.

In the present embodiment, the injection direction of the first nozzle 510 and the injection direction of the second nozzle 520 are parallel, which can enable the first nozzle 510 and the second nozzle 520 to be close to each other, reduce the volume of the nozzle holder 500, and simplify the arrangement of the intake pipe. The extending direction of the outer ring injection channel 610 is parallel to the extending direction of the inner ring injection channel 620, so as to avoid interference between the outer ring injection channel 610 and the inner ring injection channel 620, and facilitate arrangement of the outer ring mixing tank 710 and the inner ring mixing tank 720. Meanwhile, the volume of the burner can be reduced as a whole, and the manufacturing cost is reduced.

In this embodiment, the fire cover base 200 includes an outer ring body 250 disposed at the outer periphery thereof and protruding upward, and the gas distribution plate 300 is disposed at the inner side of the outer ring body 250, and an outer ring mixing groove 710 is formed between the gas distribution plate 300 and the outer ring body 250. The peripheral surface of the gas distribution plate 300 is provided with a plurality of mounting blocks 320, the bottom surface of the mounting blocks 320 is provided with mounting holes, the bottom surface of the fire cover seat 200 is provided with a plurality of through holes 240 penetrating through the fire cover seat 200, the through holes 240 are in one-to-one butt joint with the mounting holes, connecting pieces 260 are penetrated in the through holes 240, and the upper ends of the connecting pieces 260 are fixed in the mounting holes so as to fix the gas distribution plate 300 on the fire cover seat 200 through the connecting pieces 260.

Wherein, the connecting piece 260 can be a screw, the mounting hole is a threaded hole, the screw can be fixed in the threaded hole by screwing the screw, the operation is easier, the gas distribution plate 300 and the fire cover seat 200 are conveniently assembled together, and the gas distribution plate 300 and the fire cover seat 200 are also conveniently disassembled.

In this embodiment, the gas distribution plate 300 includes an inner ring body 330 protruding upward from the top thereof, and an inner ring mixing groove 720 is located inside the inner ring body 330, and an inner ring fire cover 800 may cover the inner ring body 330 to cover the inner ring mixing groove 720. The bottom wall of the inner ring mixing tank 720 is provided with an air passing hole 340 communicated with the inner ring injection channel 620, and air in the inner ring injection channel 620 enters the inner ring mixing tank 720 through the air passing hole 340.

Example 3:

An embodiment of the present utility model provides an upper air intake burner, as shown in fig. 8 to 10, comprising a base 100, a fire cover seat 200, an air distribution plate 300, an outer annular fire cover 400 and an inner annular fire cover 800. The nozzle holder 500 is fixed on the base 100, and two first nozzles 510 and one second nozzle 520 are fixed on the nozzle holder 500, and the first nozzles 510 and the second nozzles 520 are located above the base 100, so that an upper air intake structure can be formed. The base 100 is provided with an air inlet 530, and the air inlet 530 communicates with both the two first nozzles 510 and the second nozzle 520. The gas inlet 530 may be connected to an external gas line to supply gas to the two first nozzles 510 and the second nozzle 520. The fire cover base 200 is placed on the top surface of the base 100, so that the fire cover base 200 is conveniently detached from the base 100 and is convenient to clean. The gas separation disc 300 is fixed on the inner side of the fire cover seat 200, and the gas separation disc 300 and the fire cover seat 200 are enclosed to form two outer ring injection channels 610 and an inner ring injection channel 620, the two outer ring injection channels 610 and the inner ring injection channel 620 are independent from each other, and the two outer ring injection channels 610 are respectively positioned on two sides of the inner ring injection channel 620. The gas separation disc 300 and the fire cover seat 200 are also enclosed to form an outer ring mixing groove 710, the outer ring fire cover 400 is arranged on the outer ring mixing groove 710 in a covering manner to cover the outer ring mixing groove 710, the outer ring fire cover 400 is provided with outer ring fire holes 410 communicated with the outer ring mixing groove 710, the outlet ends of the two outer ring injection channels 610 are communicated with the outer ring mixing groove 710, and the two first nozzles 510 are respectively arranged towards the inlet ends of the two outer ring injection channels 610. In this way, the first nozzle 510 can spray the fuel gas to the outer ring injection channel 610, and the external air enters the outer ring injection channel 610 along with the fuel gas under the action of the air flow, so that the fuel gas and the air are mixed in the outer ring mixing tank 710, and finally sprayed out from the outer ring flame holes 410 to form the outer ring flame. The top surface of the gas distribution plate 300 is provided with an inner ring mixing groove 720, an inner ring fire cover 800 is arranged on the inner ring mixing groove 720 in a covering manner, the inner ring fire cover 800 is provided with an inner ring fire hole 810 communicated with the inner ring mixing groove 720, the outlet end of the inner ring injection channel 620 is communicated with the inner ring mixing groove 720, and the second nozzle 520 is arranged towards the inlet end of the inner ring injection channel 620. In this way, the second nozzle 520 can inject the fuel gas into the inner ring injection channel 620, and the external air enters the inner ring injection channel 620 along with the fuel gas under the action of the air flow, so as to mix the fuel gas and the air in the inner ring mixing tank 720, and finally, the fuel gas and the air are sprayed out from the inner ring flame holes 810, so as to form an inner ring flame.

The bottom surface of the fire cover base 200 is provided with an opening 230 penetrating the fire cover base 200, and the nozzle base 500 penetrates the opening 230. The opening 230 may be forward of the inlet end of the injection passage such that after the nozzle holder 500 passes through the opening 230, the nozzle on the nozzle holder 500 may inject fuel gas toward the injection passage. The two sides of the nozzle seat 500 are provided with supporting blocks 501, and the two supporting blocks 501 are abutted against the bottom surface of the fire cover seat 200 to support the fire cover seat 200. The top surface of the base 100 is provided with a boss 120, the bottom surface of the fire cover base 200 is provided with a bump 220, the bump 220 corresponds to the boss 120, specifically, the position of the bump 220 can correspond to the position of the boss 120, both the bottom surface of the bump 220 and the bottom surface of the boss 120 can be provided with planes, and the bump 220 is horizontally placed on the boss 120. On the top surface of the base 100, the boss 120 and the two supporting blocks 501 are distributed in a triangle shape, that is, the boss 120 and the two supporting blocks 501 may be respectively located at three vertex positions of the triangle. Therefore, a three-point support structure is formed for the fire cover base 200, and the fire cover base 200 is not easy to shake on the top surface of the base 100, so that the fire cover base 200 is stably placed on the base 100. Because the fire cover seat 200 is placed on the base 100, after the fire cover seat 200 is removed, the nozzle can be exposed, so that the nozzle can be conveniently replaced to solve the problems of aging and damage of the nozzle after long-term use, and the specification and/or the type of the nozzle can be changed by replacing the nozzle so as to adapt to different gas requirements. The embodiment forms a structural design of air inlet of one path and air separation of outer ring flame and inner ring flame respectively, so that the arrangement of air inlet pipelines can be reduced, and the manufacturing cost is reduced. Meanwhile, two first nozzles 510 and two outer ring injection passages 610 are provided, and the gas can relatively uniformly enter the outer ring mixing tank 710, so that the gas and air can be uniformly mixed in the outer ring mixing tank 710,

In this embodiment, the top surface of the base 100 is further provided with a positioning hole 110, the bottom surface of the fire cover base 200 is further provided with a positioning member 210, the positioning member 210 is adapted to the positioning hole 110, and specifically, the position, size and shape of the positioning member 210 can be respectively adapted to the position, size and shape of the positioning hole 110. When the fire cover base 200 is placed on the top surface of the base 100, the positioning member 210 is inserted into the positioning hole 110, and the positioning member 210 can limit the fire cover base 200 to move laterally on the top surface of the base 100, so that the fire cover base 200 can be placed on the base 100 more stably.

The nozzle seat 500, the positioning hole 110 and the boss 120 may be sequentially distributed in the same direction, so as to promote the limiting and supporting effects on the fire cover seat 200. Specifically, the distribution directions of the nozzle seat 500, the positioning hole 110 and the boss 120 may pass through the central axis of the fire cover seat 200, which provides a more uniform supporting force to the fire cover seat 200, and further improves the stability of the fire cover seat 200 placed on the base 100.

The gas distribution plate 300 further includes a cover 310 covering over the opening 230 to separate the outer ring mixing tank 710 from the opening 230 by the cover 310, avoiding gas leakage in the outer ring mixing tank 710.

In this embodiment, an air inlet channel extending to the nozzle seat 500 is disposed on the base 100, one end of the air inlet channel forms an air inlet 530, and the other end forms three branches, wherein two branches are respectively communicated with two first nozzles 510, and the remaining branch is communicated with the second nozzle 520. The nozzle holder 500 may be integrally connected with the base 100 to facilitate manufacturing and molding. The first nozzle 510 and the second nozzle 520 may be fixed to sides of the nozzle holder 500.

In the present embodiment, the injection direction of the first nozzle 510 and the injection direction of the second nozzle 520 are parallel, which can enable the first nozzle 510 and the second nozzle 520 to be close to each other, reduce the volume of the nozzle holder 500, and simplify the arrangement of the intake pipe. The extending direction of the outer ring injection channel 610 is parallel to the extending direction of the inner ring injection channel 620, so as to avoid interference between the outer ring injection channel 610 and the inner ring injection channel 620, and facilitate arrangement of the outer ring mixing tank 710 and the inner ring mixing tank 720. Meanwhile, the volume of the burner can be reduced as a whole, and the manufacturing cost is reduced.

In this embodiment, the fire cover base 200 includes an outer ring body 250 disposed at the outer periphery thereof and protruding upward, and the gas distribution plate 300 is disposed at the inner side of the outer ring body 250, and an outer ring mixing groove 710 is formed between the gas distribution plate 300 and the outer ring body 250. The peripheral surface of the gas distribution plate 300 is provided with a plurality of mounting blocks 320, the bottom surface of the mounting blocks 320 is provided with mounting holes, the bottom surface of the fire cover seat 200 is provided with a plurality of through holes 240 penetrating through the fire cover seat 200, the through holes 240 are in one-to-one butt joint with the mounting holes, connecting pieces 260 are penetrated in the through holes 240, and the upper ends of the connecting pieces 260 are fixed in the mounting holes so as to fix the gas distribution plate 300 on the fire cover seat 200 through the connecting pieces 260.

Wherein, the connecting piece 260 can be a screw, the mounting hole is a threaded hole, the screw can be fixed in the threaded hole by screwing the screw, the operation is easier, the gas distribution plate 300 and the fire cover seat 200 are conveniently assembled together, and the gas distribution plate 300 and the fire cover seat 200 are also conveniently disassembled.

In this embodiment, the gas distribution plate 300 includes an inner ring body 330 protruding upward from the top thereof, and an inner ring mixing groove 720 is located inside the inner ring body 330, and an inner ring fire cover 800 may cover the inner ring body 330 to cover the inner ring mixing groove 720. The bottom wall of the inner ring mixing tank 720 is provided with an air passing hole 340 communicated with the inner ring injection channel 620, and air in the inner ring injection channel 620 enters the inner ring mixing tank 720 through the air passing hole 340.

Example 4:

An embodiment of the present utility model provides an upper air intake burner, as shown in fig. 11-13, comprising a base 100, a fire cover seat 200, an air distribution plate 300, an outer annular fire cover 400 and an inner annular fire cover 800. The nozzle holder 500 is fixed to the base 100, and a first nozzle 510 and a second nozzle 520 are fixed to the nozzle holder 500, and the first nozzle 510 and the second nozzle 520 are located above the base 100, thereby forming an upper air intake structure. The base 100 is provided with two air inlets 530, and the two air inlets 530 are respectively communicated with the first nozzle 510 and the second nozzle 520. The gas inlet 530 may be connected to an external gas line to supply gas to the first nozzle 510 and the second nozzle 520. The fire cover base 200 is placed on the top surface of the base 100, so that the fire cover base 200 is conveniently detached from the base 100 and is convenient to clean. The gas separation disc 300 is fixed on the inner side of the fire cover seat 200, and the gas separation disc 300 and the fire cover seat 200 are enclosed to form an outer ring injection channel 610 and an inner ring injection channel 620, and the outer ring injection channel 610 and the inner ring injection channel 620 are independent from each other. The gas separation disc 300 and the fire cover seat 200 are also enclosed to form an outer ring mixing groove 710, the outer ring fire cover 400 is arranged on the outer ring mixing groove 710 in a covering manner, the outer ring fire cover 400 is provided with an outer ring fire hole 410 communicated with the outer ring mixing groove 710, the outlet end of the outer ring injection channel 610 is communicated with the outer ring mixing groove 710, and the first nozzle 510 is arranged towards the inlet end of the outer ring injection channel 610. In this way, the first nozzle 510 can spray the fuel gas to the outer ring injection channel 610, and the external air enters the outer ring injection channel 610 along with the fuel gas under the action of the air flow, so that the fuel gas and the air are mixed in the outer ring mixing tank 710, and finally sprayed out from the outer ring flame holes 410 to form the outer ring flame. The top surface of the gas distribution plate 300 is provided with an inner ring mixing groove 720, an inner ring fire cover 800 is arranged on the inner ring mixing groove 720 in a covering manner, the inner ring fire cover 800 is provided with an inner ring fire hole 810 communicated with the inner ring mixing groove 720, the outlet end of the inner ring injection channel 620 is communicated with the inner ring mixing groove 720, and the second nozzle 520 is arranged towards the inlet end of the inner ring injection channel 620. In this way, the second nozzle 520 can inject the fuel gas into the inner ring injection channel 620, and the external air enters the inner ring injection channel 620 along with the fuel gas under the action of the air flow, so as to mix the fuel gas and the air in the inner ring mixing tank 720, and finally, the fuel gas and the air are sprayed out from the inner ring flame holes 810, so as to form an inner ring flame.

The bottom surface of the fire cover base 200 is provided with an opening 230 penetrating the fire cover base 200, and the nozzle base 500 penetrates the opening 230. The opening 230 may be forward of the inlet end of the injection passage such that after the nozzle holder 500 passes through the opening 230, the nozzle on the nozzle holder 500 may inject fuel gas toward the injection passage. The two sides of the nozzle seat 500 are provided with supporting blocks 501, and the two supporting blocks 501 are abutted against the bottom surface of the fire cover seat 200 to support the fire cover seat 200. The top surface of the base 100 is provided with a boss 120, the bottom surface of the fire cover base 200 is provided with a bump 220, the bump 220 corresponds to the boss 120, specifically, the position of the bump 220 can correspond to the position of the boss 120, both the bottom surface of the bump 220 and the bottom surface of the boss 120 can be provided with planes, and the bump 220 is horizontally placed on the boss 120. On the top surface of the base 100, the boss 120 and the two supporting blocks 501 are distributed in a triangle shape, that is, the boss 120 and the two supporting blocks 501 may be respectively located at three vertex positions of the triangle. Therefore, a three-point support structure is formed for the fire cover base 200, and the fire cover base 200 is not easy to shake on the top surface of the base 100, so that the fire cover base 200 is stably placed on the base 100. Because the fire cover seat 200 is placed on the base 100, after the fire cover seat 200 is removed, the nozzle can be exposed, so that the nozzle can be conveniently replaced to solve the problems of aging and damage of the nozzle after long-term use, and the specification and/or the type of the nozzle can be changed by replacing the nozzle so as to adapt to different gas requirements. The embodiment is provided with two independent air inlet channels and supplies air to the outer ring flame and the inner ring flame respectively, so that the outer ring flame and the inner ring flame can be ensured to have enough fuel gas supply, and the outer ring flame and the inner ring flame are ensured to be kept stable.

In this embodiment, the top surface of the base 100 is further provided with a positioning hole 110, the bottom surface of the fire cover base 200 is further provided with a positioning member 210, the positioning member 210 is adapted to the positioning hole 110, and specifically, the position, size and shape of the positioning member 210 can be respectively adapted to the position, size and shape of the positioning hole 110. When the fire cover base 200 is placed on the top surface of the base 100, the positioning member 210 is inserted into the positioning hole 110, and the positioning member 210 can limit the fire cover base 200 to move laterally on the top surface of the base 100, so that the fire cover base 200 can be placed on the base 100 more stably.

The nozzle seat 500, the positioning hole 110 and the boss 120 may be sequentially distributed in the same direction, so as to promote the limiting and supporting effects on the fire cover seat 200. Specifically, the distribution directions of the nozzle seat 500, the positioning hole 110 and the boss 120 may pass through the central axis of the fire cover seat 200, which provides a more uniform supporting force to the fire cover seat 200, and further improves the stability of the fire cover seat 200 placed on the base 100.

The gas distribution plate 300 further includes a cover 310 covering over the opening 230 to separate the outer ring mixing tank 710 from the opening 230 by the cover 310, avoiding gas leakage in the outer ring mixing tank 710.

In this embodiment, two air intake passages extending to the nozzle seat 500 are disposed on the base 100, the two air intake passages are independent of each other, one ends of the two air intake passages respectively form two air inlets 530, and the other ends of the two air intake passages respectively communicate with the first nozzle 510 and the second nozzle 520. The nozzle holder 500 may be integrally connected with the base 100 to facilitate manufacturing and molding. The first nozzle 510 and the second nozzle 520 may be fixed to sides of the nozzle holder 500.

In the present embodiment, the injection direction of the first nozzle 510 and the injection direction of the second nozzle 520 are parallel, which can enable the first nozzle 510 and the second nozzle 520 to be close to each other, reduce the volume of the nozzle holder 500, and simplify the arrangement of the intake pipe. The extending direction of the outer ring injection channel 610 is parallel to the extending direction of the inner ring injection channel 620, so as to avoid interference between the outer ring injection channel 610 and the inner ring injection channel 620, and facilitate arrangement of the outer ring mixing tank 710 and the inner ring mixing tank 720. Meanwhile, the volume of the burner can be reduced as a whole, and the manufacturing cost is reduced.

In this embodiment, the fire cover base 200 includes an outer ring body 250 disposed at the outer periphery thereof and protruding upward, and the gas distribution plate 300 is disposed at the inner side of the outer ring body 250, and an outer ring mixing groove 710 is formed between the gas distribution plate 300 and the outer ring body 250. The peripheral surface of the gas distribution plate 300 is provided with a plurality of mounting blocks 320, the bottom surface of the mounting blocks 320 is provided with mounting holes, the bottom surface of the fire cover seat 200 is provided with a plurality of through holes 240 penetrating through the fire cover seat 200, the through holes 240 are in one-to-one butt joint with the mounting holes, connecting pieces 260 are penetrated in the through holes 240, and the upper ends of the connecting pieces 260 are fixed in the mounting holes so as to fix the gas distribution plate 300 on the fire cover seat 200 through the connecting pieces 260.

Wherein, the connecting piece 260 can be a screw, the mounting hole is a threaded hole, the screw can be fixed in the threaded hole by screwing the screw, the operation is easier, the gas distribution plate 300 and the fire cover seat 200 are conveniently assembled together, and the gas distribution plate 300 and the fire cover seat 200 are also conveniently disassembled.

In this embodiment, the gas distribution plate 300 includes an inner ring body 330 protruding upward from the top thereof, and an inner ring mixing groove 720 is located inside the inner ring body 330, and an inner ring fire cover 800 may cover the inner ring body 330 to cover the inner ring mixing groove 720. The bottom wall of the inner ring mixing tank 720 is provided with an air passing hole 340 communicated with the inner ring injection channel 620, and air in the inner ring injection channel 620 enters the inner ring mixing tank 720 through the air passing hole 340.

Example 5:

An embodiment of the present utility model provides an upper air intake burner, as shown in fig. 14 to 16, comprising a base 100, a fire cover seat 200, an air distribution plate 300, an outer annular fire cover 400 and an inner annular fire cover 800. The nozzle holder 500 is fixed on the base 100, and two first nozzles 510 and one second nozzle 520 are fixed on the nozzle holder 500, and the first nozzles 510 and the second nozzles 520 are located above the base 100, so that an upper air intake structure can be formed. The base 100 is provided with two air inlets 530, wherein one air inlet 530 communicates with two first nozzles 510, and the other air inlet 530 communicates with a second nozzle 520. Both of the gas inlets 530 may be connected to an external gas line to supply gas to both of the first and second nozzles 510 and 520. The fire cover base 200 is placed on the top surface of the base 100, so that the fire cover base 200 is conveniently detached from the base 100 and is convenient to clean. The gas separation disc 300 is fixed on the inner side of the fire cover seat 200, and the gas separation disc 300 and the fire cover seat 200 are enclosed to form two outer ring injection channels 610 and an inner ring injection channel 620, the two outer ring injection channels 610 and the inner ring injection channel 620 are independent from each other, and the two outer ring injection channels 610 are respectively positioned on two sides of the inner ring injection channel 620. The gas separation disc 300 and the fire cover seat 200 are also enclosed to form an outer ring mixing groove 710, the outer ring fire cover 400 is arranged on the outer ring mixing groove 710 in a covering manner to cover the outer ring mixing groove 710, the outer ring fire cover 400 is provided with outer ring fire holes 410 communicated with the outer ring mixing groove 710, the outlet ends of the two outer ring injection channels 610 are communicated with the outer ring mixing groove 710, and the two first nozzles 510 are respectively arranged towards the inlet ends of the two outer ring injection channels 610. In this way, the first nozzle 510 can spray the fuel gas to the outer ring injection channel 610, and the external air enters the outer ring injection channel 610 along with the fuel gas under the action of the air flow, so that the fuel gas and the air are mixed in the outer ring mixing tank 710, and finally sprayed out from the outer ring flame holes 410 to form the outer ring flame. The top surface of the gas distribution plate 300 is provided with an inner ring mixing groove 720, an inner ring fire cover 800 is arranged on the inner ring mixing groove 720 in a covering manner, the inner ring fire cover 800 is provided with an inner ring fire hole 810 communicated with the inner ring mixing groove 720, the outlet end of the inner ring injection channel 620 is communicated with the inner ring mixing groove 720, and the second nozzle 520 is arranged towards the inlet end of the inner ring injection channel 620. In this way, the second nozzle 520 can inject the fuel gas into the inner ring injection channel 620, and the external air enters the inner ring injection channel 620 along with the fuel gas under the action of the air flow, so as to mix the fuel gas and the air in the inner ring mixing tank 720, and finally, the fuel gas and the air are sprayed out from the inner ring flame holes 810, so as to form an inner ring flame.

The bottom surface of the fire cover base 200 is provided with an opening 230 penetrating the fire cover base 200, and the nozzle base 500 penetrates the opening 230. The opening 230 may be forward of the inlet end of the injection passage such that after the nozzle holder 500 passes through the opening 230, the nozzle on the nozzle holder 500 may inject fuel gas toward the injection passage. The two sides of the nozzle seat 500 are provided with supporting blocks 501, and the two supporting blocks 501 are abutted against the bottom surface of the fire cover seat 200 to support the fire cover seat 200. The top surface of the base 100 is provided with a boss 120, the bottom surface of the fire cover base 200 is provided with a bump 220, the bump 220 corresponds to the boss 120, specifically, the position of the bump 220 can correspond to the position of the boss 120, both the bottom surface of the bump 220 and the bottom surface of the boss 120 can be provided with planes, and the bump 220 is horizontally placed on the boss 120. On the top surface of the base 100, the boss 120 and the two supporting blocks 501 are distributed in a triangle shape, that is, the boss 120 and the two supporting blocks 501 may be respectively located at three vertex positions of the triangle. Therefore, a three-point support structure is formed for the fire cover base 200, and the fire cover base 200 is not easy to shake on the top surface of the base 100, so that the fire cover base 200 is stably placed on the base 100. Because the fire cover seat 200 is placed on the base 100, after the fire cover seat 200 is removed, the nozzle can be exposed, so that the nozzle can be conveniently replaced to solve the problems of aging and damage of the nozzle after long-term use, and the specification and/or the type of the nozzle can be changed by replacing the nozzle so as to adapt to different gas requirements. The embodiment is provided with two independent air inlet channels and supplies air to the outer ring flame and the inner ring flame respectively, so that the outer ring flame and the inner ring flame can be ensured to have enough fuel gas supply, and the outer ring flame and the inner ring flame are ensured to be kept stable. Meanwhile, two first nozzles 510 and two outer ring injection passages 610 are provided, and the gas can relatively uniformly enter the outer ring mixing tank 710, so that the gas and the air can be uniformly mixed in the outer ring mixing tank 710.

In this embodiment, the top surface of the base 100 is further provided with a positioning hole 110, the bottom surface of the fire cover base 200 is further provided with a positioning member 210, the positioning member 210 is adapted to the positioning hole 110, and specifically, the position, size and shape of the positioning member 210 can be respectively adapted to the position, size and shape of the positioning hole 110. When the fire cover base 200 is placed on the top surface of the base 100, the positioning member 210 is inserted into the positioning hole 110, and the positioning member 210 can limit the fire cover base 200 to move laterally on the top surface of the base 100, so that the fire cover base 200 can be placed on the base 100 more stably.

The nozzle seat 500, the positioning hole 110 and the boss 120 may be sequentially distributed in the same direction, so as to promote the limiting and supporting effects on the fire cover seat 200. Specifically, the distribution directions of the nozzle seat 500, the positioning hole 110 and the boss 120 may pass through the central axis of the fire cover seat 200, which provides a more uniform supporting force to the fire cover seat 200, and further improves the stability of the fire cover seat 200 placed on the base 100.

The gas distribution plate 300 further includes a cover 310 covering over the opening 230 to separate the outer ring mixing tank 710 from the opening 230 by the cover 310, avoiding gas leakage in the outer ring mixing tank 710.

In this embodiment, two air intake passages extending to the nozzle seat 500 are disposed on the base 100, the two air intake passages are independent of each other, one end of each air intake passage forms two air inlets 530, the other end of one air intake passage forms two branches, the two branches are respectively communicated with the two first nozzles 510, and the other end of the other air intake passage is communicated with the second nozzle 520. The nozzle holder 500 may be integrally connected with the base 100 to facilitate manufacturing and molding. The first nozzle 510 and the second nozzle 520 may be fixed to sides of the nozzle holder 500.

In the present embodiment, the injection direction of the first nozzle 510 and the injection direction of the second nozzle 520 are parallel, which can enable the first nozzle 510 and the second nozzle 520 to be close to each other, reduce the volume of the nozzle holder 500, and simplify the arrangement of the intake pipe. The extending direction of the outer ring injection channel 610 is parallel to the extending direction of the inner ring injection channel 620, so as to avoid interference between the outer ring injection channel 610 and the inner ring injection channel 620, and facilitate arrangement of the outer ring mixing tank 710 and the inner ring mixing tank 720. Meanwhile, the volume of the burner can be reduced as a whole, and the manufacturing cost is reduced.

In this embodiment, the fire cover base 200 includes an outer ring body 250 disposed at the outer periphery thereof and protruding upward, and the gas distribution plate 300 is disposed at the inner side of the outer ring body 250, and an outer ring mixing groove 710 is formed between the gas distribution plate 300 and the outer ring body 250. The peripheral surface of the gas distribution plate 300 is provided with a plurality of mounting blocks 320, the bottom surface of the mounting blocks 320 is provided with mounting holes, the bottom surface of the fire cover seat 200 is provided with a plurality of through holes 240 penetrating through the fire cover seat 200, the through holes 240 are in one-to-one butt joint with the mounting holes, connecting pieces 260 are penetrated in the through holes 240, and the upper ends of the connecting pieces 260 are fixed in the mounting holes so as to fix the gas distribution plate 300 on the fire cover seat 200 through the connecting pieces 260.

Wherein, the connecting piece 260 can be a screw, the mounting hole is a threaded hole, the screw can be fixed in the threaded hole by screwing the screw, the operation is easier, the gas distribution plate 300 and the fire cover seat 200 are conveniently assembled together, and the gas distribution plate 300 and the fire cover seat 200 are also conveniently disassembled.

In this embodiment, the gas distribution plate 300 includes an inner ring body 330 protruding upward from the top thereof, and an inner ring mixing groove 720 is located inside the inner ring body 330, and an inner ring fire cover 800 may cover the inner ring body 330 to cover the inner ring mixing groove 720. The bottom wall of the inner ring mixing tank 720 is provided with an air passing hole 340 communicated with the inner ring injection channel 620, and air in the inner ring injection channel 620 enters the inner ring mixing tank 720 through the air passing hole 340.

The terms and words used in the above description and claims are not limited to literal meanings but are only used by the applicant to enable a clear and consistent understanding of the utility model. Accordingly, it will be apparent to those skilled in the art that the foregoing description of the various embodiments of the utility model has been provided for illustration only and not for the purpose of limiting the utility model as defined by the appended claims and their equivalents.

Claims (10)

1. The utility model provides a combustor of upper air inlet which characterized in that: comprises a base, a fire cover seat, an air distribution disc and an outer ring fire cover; the top surface of the base is fixed with a nozzle seat, a first nozzle is fixed on the nozzle seat, the first nozzle is positioned above the base, and an air inlet communicated with the first nozzle is arranged on the base; the fire cover seat is arranged on the top surface of the base; the air distribution plate is fixed on the inner side of the fire cover seat, and the air distribution plate and the fire cover seat are enclosed to form an outer ring injection channel; the gas distribution plate and the fire cover seat are also enclosed to form an outer ring mixing groove, the outer ring fire cover is arranged on the outer ring mixing groove, the outer ring injection channel is communicated with the outer ring mixing groove, and the first nozzle is arranged towards the outer ring injection channel; the bottom surface of the fire cover seat is provided with an opening penetrating through the fire cover seat, the nozzle seat penetrates through the opening, the two sides of the nozzle seat are provided with supporting blocks, and the two supporting blocks are abutted against the bottom surface of the fire cover seat; the top surface of the base is provided with a boss, the bottom surface of the fire cover seat is provided with a bump corresponding to the boss, and the bump is horizontally arranged on the boss; on the top surface of the base, the boss and the two supporting blocks are distributed in a triangle shape.

2. The upper air intake burner of claim 1, wherein: the top surface of base still is provided with the locating hole, the bottom surface of fire lid seat still is provided with the setting element with locating hole looks adaptation, the setting element inserts in the locating hole.

3. The upper air intake burner of claim 1, wherein: the upper air inlet burner further comprises an inner ring fire cover positioned at the inner side of the outer ring fire cover, a second nozzle is further fixed on the nozzle seat, and the second nozzle is positioned above the base; the gas distribution plate and the fire cover seat are also enclosed to form an inner ring injection channel; the top surface of divide the gas tray is provided with inner ring mixing tank, inner ring fire lid is established on the inner ring mixing tank, inner ring draws the passageway and mixes the groove intercommunication with the inner ring, the second nozzle is towards the inner ring and draws the passageway arrangement.

4. A top-entry burner according to claim 3, wherein: the injection direction of the first nozzle is parallel to the injection direction of the second nozzle, and the extension direction of the outer ring injection channel is parallel to the extension direction of the inner ring injection channel.

5. A top-entry burner according to claim 3, wherein: the air inlet is provided with one, and the air inlet is also communicated with the second nozzle.

6. The upper air intake burner of claim 5, wherein: the two outer ring injection channels are respectively positioned at two sides of the inner ring injection channel, and the two first nozzles are respectively arranged towards the two outer ring injection channels.

7. A top-entry burner according to claim 3, wherein: the two air inlets are respectively communicated with the first nozzle and the second nozzle.

8. The upper air intake burner of claim 7, wherein: the two outer ring injection channels are respectively positioned at two sides of the inner ring injection channel, and the two first nozzles are respectively arranged towards the two outer ring injection channels; the two first nozzles are communicated with one air inlet, and the second nozzles are communicated with the other air inlet.

9. The upper air intake burner of any one of claims 1-8, wherein: the fire cover seat comprises an outer ring body which is positioned at the periphery and protrudes upwards, the gas distribution disc is arranged at the inner side of the outer ring body, and the outer ring mixing groove is formed between the gas distribution disc and the outer ring body; the periphery of divide the gas dish is provided with a plurality of installation pieces, the bottom surface of installation piece is provided with the mounting hole, the bottom surface of fire lid seat is provided with a plurality of perforation that run through the fire lid seat, perforation and mounting hole butt joint one by one, wear to be equipped with the connecting piece in the perforation, the upper end of connecting piece is fixed in the mounting hole.

10. The upper air intake burner of any one of claims 3-8, wherein: the gas distribution plate comprises an inner ring body which is arranged at the top of the gas distribution plate and protrudes upwards, the inner ring mixing groove is arranged on the inner side of the inner ring body, and the bottom wall of the inner ring mixing groove is provided with a gas passing hole communicated with the inner ring injection channel.