CN211316173U - Direct-jet burner for household gas stove - Google Patents

Abstract

The utility model discloses a direct-injection burner of a household gas stove, which comprises an injection device, a gas distribution disc component, an outer fire cover and an inner fire cover, wherein the injection device comprises an injection seat, an outer ring injection pipe, an inner ring injection pipe, a nozzle seat and an air door device; the air door device comprises a limiting spring and a rotatable air door adjusting plate, the air door adjusting plate extends out of the outer side of the bottom case of the stove, an upper secondary air channel and a lower secondary air channel for supplementing air are arranged at the inlet of the outer ring injection pipe, and an upper secondary air inlet channel and a lower secondary air inlet channel for supplementing air are arranged at the inlet of the inner ring injection pipe; the nozzle seat is provided with an outer ring nozzle and an inner ring nozzle respectively, the bottom of the nozzle seat is connected with an air inlet pipe, and the air inlet pipe extends in a 7 shape; the utility model discloses an air door regulating plate rotates through spacing spring to be connected in the nozzle holder, need not just can adjust after dismantling fixed cover like traditional air door device.

Description

Direct-jet burner for household gas stove

Technical Field

The utility model relates to a gas-cooker field, in particular to burner is directly spouted to domestic gas-cooker.

Background

The gas stove is popular among every family because of the characteristic of convenient use. In order to adapt to the change of gas pressure and gas components, the existing household gas cooker is generally provided with a wind door device for adjusting the air quantity so as to achieve the purposes of complete combustion and improving the heat efficiency. Meanwhile, with the improvement of living standard of people, the safety consciousness and the nutrition consciousness of people are higher and higher, and the dry-burning prevention device for the gas stove becomes a fashionable and safe choice for many consumers.

However, the direct-injection burner for the household gas stove in the current market generally draws a large hole on the bottom shell to externally arrange the air door device due to the limited requirement of the length of the injection pipe, the design and installation are complicated, the air volume adjustment can be completed after the outer cover is detached, the adjustment is very inconvenient, and the adjustment is not timely enough. From the structure, at present, the dry combustion preventing device is not arranged on the direct-injection combustor, and the existing direct-injection combustor is provided with only one air inlet channel, so that the air quantity is not enough easily, the air and gas are not sufficiently mixed, the combustion is incomplete, excessive CO can be generated, and the life safety and the energy waste are damaged.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to provide a burner is directly spouted to domestic gas-cooker to solve the not enough that exists among the prior art.

In order to solve the technical problem, the utility model discloses a technical scheme does: a direct-injection burner of a household gas stove comprises an injection device, a gas distribution disc assembly, an outer fire cover and an inner fire cover, wherein the outer fire cover and the inner fire cover are arranged on the gas distribution disc assembly; the injection device comprises an injection seat, an outer ring injection pipe, an inner ring injection pipe, a nozzle seat and an air door device; the air door device comprises a limiting spring and a rotatable air door adjusting plate, the air door adjusting plate extends out of the outer side of the bottom case of the stove, an upper secondary air channel and a lower secondary air channel for supplementing air are arranged at the inlet of the outer ring injection pipe, and an upper secondary air inlet channel and a lower secondary air inlet channel for supplementing air are arranged at the inlet of the inner ring injection pipe; the nozzle seat is provided with an outer ring nozzle and an inner ring nozzle respectively, the bottom of the nozzle seat is connected with an air inlet pipe, and the air inlet pipe extends in a shape like a Chinese character '7'.

As an improvement, the air door device is installed on the nozzle seat, be equipped with on the air door regulating plate and draw the income wind gap that the pipe bottom end communicates with is drawn to the outer loop or the inner ring draws, be equipped with on the nozzle seat with go into the corresponding ventilation hole in wind gap, the air door regulating plate is located the ventilation hole and can open or close the ventilation hole when rotating, the ventilation hole with under secondary air passageway secondary air channel intercommunication.

As the improvement, be equipped with the turning handle that accessible external force promoted the air door regulating plate on the air door regulating plate, turning handle stretches out downwards in the cooking utensils drain pan and sets up for the arc.

As an improvement, the household gas stove direct-injection burner further comprises an anti-dry-combustion device, the anti-dry-combustion device comprises an anti-dry-combustion probe, an anti-dry-combustion support and a locking screw, the anti-dry-combustion probe is installed on the anti-dry-combustion support, and the anti-dry-combustion support is installed on the injection seat through the locking screw.

As an improvement, a plurality of circumferentially arranged outer ring combustion holes are arranged on the outer fire cover, a plurality of circumferentially arranged inner ring combustion holes are arranged on the inner fire cover, and an outer ring cavity communicated with the outer fire cover and an inner ring cavity communicated with the inner fire cover are arranged in the gas distribution plate assembly; the outlet of the outer ring injection pipe is communicated with the outer ring cavity, and the outlet of the inner ring injection pipe is communicated with the inner ring cavity.

As the improvement, the outer loop nozzle draws with the outer loop and penetrates the coaxial setting of pipe, the inner ring nozzle draws with the inner ring and penetrates the coaxial setting of pipe, the outer wall bottom that outer loop draws the pipe and the inner ring draws the pipe all is the loudspeaker form, go up secondary air passageway and locate on the outer wall that the outer loop draws the pipe loudspeaker form, go up secondary air passageway and locate on the outer wall that the inner ring draws the pipe loudspeaker form.

As an improvement, spring grooves used for installing positioning limiting springs are respectively formed in the peripheries of the nozzle seat corresponding to the outer ring nozzle and the inner ring nozzle, and the spring grooves are located on the inner sides of the ventilation holes.

As an improvement, an outer ring air inlet is formed in the position, corresponding to the outer ring cavity, of the bottom of the air distribution disc assembly, and is communicated with the outer ring cavity, an inner ring air inlet is formed in the position, corresponding to the inner ring cavity, of the bottom of the air distribution disc assembly, and is communicated with the inner ring cavity.

As an improvement, a shunting seat used for sealing and isolating the outer ring cavity and the inner ring cavity is further arranged in the shunting plate assembly, and a guide plate used for guiding the gas to flow is arranged at the position, close to the outer ring gas inlet, of the shunting seat.

As an improvement, an air guide inclined plane is arranged in the outer ring cavity, and the air guide inclined plane inclines downwards towards one side of the outer ring cavity where the outer ring air inlet is located along one side of the outer ring cavity where the inner ring air inlet is located.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses an air door regulating plate rotates through spacing spring to be connected in the nozzle holder, make the air door regulating plate that is located ventilation hole top steerable ventilation hole when rotating close or open, or reduce and enlarge the size in ventilation hole, thereby adjust the size that gets into the wind-force in ventilation hole, need not just can adjust after dismantling fixed cover like traditional air door device, it is convenient to adjust, moreover, the steam generator is simple in structure, low cost, and go up secondary air channel, lower secondary air channel, go up secondary air channel and lower secondary air channel's setting can make gas and air mixing more even, prevent that the insufficient condition of burning from appearing. Furthermore, the utility model discloses an intake pipe setting is "7" font and extends, has solved the direct burner's of spouting intake pipe exerted drawback among the prior art, effectively protects the intake pipe.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is an exploded view of fig. 1.

Fig. 3 is a schematic structural view of the top view angle of the present invention.

Fig. 4 is a schematic sectional view taken along line a-a of fig. 3.

Fig. 5 is a schematic sectional view taken along line B-B in fig. 3.

Fig. 6 is an exploded view of the damper device according to the present invention.

Fig. 7 is a schematic view of the position structure of the utility model after being installed on the bottom case of the kitchen range.

Fig. 8 is a schematic perspective view of the injection device of the present invention.

In the figure: the device comprises an injection device 1, an outer fire cover 3 of a gas distribution plate component 2, an inner fire cover 4, an anti-dry burning device 5, a through hole 8, a kitchen range bottom shell 9, an injection seat 10, an outer ring injection pipe 11, an inner ring injection pipe 12, a nozzle seat 13, an air door device 14, an air inlet pipe 15, an ignition needle 16, a thermocouple 17, a connecting support 19, an outer ring cavity 20, an inner ring cavity 21, an outer ring air inlet 22, an inner ring air inlet 23, a flow distribution seat 24, an outer ring combustion hole 30, an inner ring combustion hole 40, an anti-dry burning probe 51, an anti-dry burning support 52, an arc-shaped groove 90, an upper secondary air channel 111, a lower secondary air channel 112, an upper secondary air inlet channel 121, a lower secondary air inlet channel 122, an outer ring nozzle 131, an inner ring nozzle 132, a vent hole 133, a spring groove 134, a limiting spring 141, an air door adjusting plate 142, an air inlet.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, a household gas stove direct-injection burner comprises an injection device 1, a gas distribution disc assembly 2, an outer fire cover 3 and an inner fire cover 4, wherein the outer fire cover 3 and the inner fire cover 4 are installed on the gas distribution disc assembly 2, the gas distribution disc assembly 2 is installed on the injection device 1, an outer ring combustion hole 30 is formed in the outer fire cover 3 in a plurality of circumferential direction, an inner ring combustion hole 40 is formed in the inner fire cover 4 in a plurality of circumferential direction, and an outer ring cavity 20 communicated with the outer fire cover 3 and an inner ring cavity 21 communicated with the inner fire cover 4 are formed in the gas distribution disc assembly 2. Specifically, an outer ring air inlet 22 is arranged at a position, corresponding to the outer ring cavity 20, of the bottom of the air distribution disc assembly 2, the outer ring air inlet 22 is communicated with the outer ring cavity 20, an inner ring air inlet 23 is arranged at a position, corresponding to the inner ring cavity 21, of the bottom of the air distribution disc assembly 2, and the inner ring air inlet 23 is communicated with the inner ring cavity 21. In addition, in order to separate the outer annular cavity 20 from the inner annular cavity 21, a flow dividing seat 24 for closing and isolating the outer annular cavity 20 and the inner annular cavity 21 is further arranged in the gas distribution disc assembly 2, and the flow dividing seat 24 has an effect of uniformly distributing gas. The position department that reposition of redundant personnel seat 24 is close to outer loop air inlet 22 is equipped with guide plate 240 that is used for the direction gas to flow, and guide plate 240 plays the effect of intensive mixing gas and air equally, effectively improves the utility model discloses a combustion efficiency.

Further, an air guide inclined plane 200 is arranged in the outer ring cavity 20, the air guide inclined plane 200 inclines downwards along one side of the outer ring cavity 20 where the inner ring air inlet 23 is located to one side of the outer ring cavity 20 where the outer ring air inlet 22 is located, after mixed gas of air and fuel gas enters the outer ring cavity 20 from the outer ring air inlet 22, the mixed gas can be guided by the air guide inclined plane 200 from bottom to top to uniformly fill the outer ring cavity 20, so that the gas transmission effect of the outer ring cavity 20 is more uniform, and then the sufficient combustion of the outer fire cover 3 is ensured.

As shown in fig. 2, 4, 6, 7 and 8, the injection device 1 includes an injection seat 10, an outer ring injection pipe 11, an inner ring injection pipe 12, a nozzle seat 13 and an air door device 14, the outer ring injection pipe 11 and the inner ring injection pipe 12 are respectively installed on the injection seat 10, an outlet of the outer ring injection pipe 11 is communicated with an outer ring cavity 20, and an outlet of the inner ring injection pipe 12 is communicated with an inner ring cavity 21. The outer ring draws and penetrates pipe 11 and the inner ring and draw independent setting of penetrating pipe 12 can carry out individual time limit for a project for outer fire lid 3, interior fire lid 4 respectively, and the air feed tolerance is bigger, makes the whole combustion power of this combustor bigger. In this embodiment, the injection seat 10 is further provided with necessary accessories required by the burner, such as a thermocouple 17 and an ignition needle 16, which will be understood by those skilled in the art. Meanwhile, in order to facilitate the installation of the burner on the bottom case 9 of the cooker, in the embodiment, the nozzle holder 13 is provided with a connecting bracket 19 for connecting the bottom case 9 of the cooker, and the connecting bracket 19 is fixed in a designated position in the bottom case 9 of the cooker by means of screw connection, so that the burner can be quickly and accurately positioned and installed in the bottom case 9 of the cooker, and of course, the connecting bracket 19 may also be fixed in the bottom case 9 of the cooker by welding or other connecting means, which should not be limited thereto, and it should be understood by those skilled in the art.

As shown in fig. 1, 2, 3, 4, 5, 6 and 8, the damper device 14 includes a limiting spring 141 and a rotatable damper adjusting plate 142, a rotating handle 62 capable of pushing the damper adjusting plate 142 by an external force is disposed on the damper adjusting plate 142, the rotating handle 62 extends downward from the cooker bottom case 9 and is disposed in an arc shape, and the rotating handle 62 is disposed at an end of the damper adjusting plate 142. In actual production, in order to increase the rigidity of the damper adjustment plate 142 and the swing handle 62, the swing handle 62 and the damper adjustment plate 142 are integrally provided. Correspondingly, the kitchen range bottom shell 9 is provided with an arc-shaped groove 90 which is matched with the rotating handle 62 and extends downwards and rotates, so that a user can conveniently adjust the air door adjusting plate 142 from the kitchen range bottom shell 9. In order to further improve the combustion efficiency and enable the gas and the air to be fully mixed, an upper secondary air channel 111 and a lower secondary air channel 112 for supplementing air are arranged at the inlet of the outer ring ejector pipe 11, an upper secondary air channel 121 and a lower secondary air channel 122 for supplementing air are arranged at the inlet of the inner ring ejector pipe 12, the upper secondary air channel 111, the lower secondary air channel 112, the upper secondary air channel 121 and the lower secondary air channel 122 are respectively communicated with the outside, so that the corresponding ejector pipe has a bidirectional secondary air channel, during the combustion process of the outer fire cover 3 or the inner fire cover 4, the upper part of the outer fire cover 3 or the inner fire cover 4 forms negative pressure, so that the upper secondary air channel 111 and the upper secondary air channel 121 can convey air from top to bottom, and the lower secondary air channel 112 and the lower secondary air channel 122 can convey air from bottom to top, further improve the supplement of air and ensure the full combustion of fuel gas. In this technical scheme, the outer wall bottom that outer loop draws and penetrates pipe 11 and inner ring and draw and penetrate pipe 12 all is the loudspeaker form, is convenient for the mixture of gas and air, go up secondary air passageway 111 and go up secondary air inlet channel 121 and locate respectively on the outer wall that corresponds the loudspeaker form that draws the pipe. In addition, the air door adjusting plate 142 is provided with an air inlet 143 communicated with the bottom end of the outer ring injection pipe 11 or the inner ring injection pipe 12, and the air inlet 143 can meet the requirement of conveying air to the outer ring injection pipe 11 and the inner ring injection pipe 12, so that the mixing inside the outer ring injection pipe 11 and the inner ring injection pipe 12 is met, and the sufficient combustion is ensured. The nozzle holder 13 is provided with a vent hole 133 corresponding to the air inlet 143, the damper adjusting plate 142 is positioned on the air inlet 143 and can open or close the air inlet 143 when rotating, and the air inlet 143 is communicated with the lower secondary air passage 112. Specifically, the periphery that corresponds outer ring nozzle 131, inner ring nozzle 132 on the nozzle holder 13 is equipped with the spring groove 134 that is used for fixing a position the installation of spacing spring 141 respectively, spring groove 134 is located the inboard of ventilation hole 133, spacing spring 141 and the air door regulating plate 142 butt that corresponds for air door regulating plate 142 can rotate in vertical direction, has practiced thrift the utility model discloses an installation space is convenient for assemble with cooking utensils drain pan 9. The damper adjustment plate 142 is rotated relative to the ventilation hole 133 by pushing the rotation handle 62, so that the air inlet 143 above the ventilation hole 133 can control the closing or opening of the ventilation hole 133 or reduce or enlarge the size of the ventilation hole 133, thereby achieving the effect of adjusting the amount of wind entering the ventilation hole 133.

Further, the nozzle holder 13 is provided with the outer ring nozzle 131 and the inner ring nozzle 132 respectively, and the independent nozzles can realize independent gas mixing and gas supply, so that the outer fire cover 3 and the inner fire cover 4 can be combusted more sufficiently, and the fire power adjusting effect is better. Outer loop nozzle 131 draws with the outer loop and penetrates the coaxial setting of pipe 11, inner ring nozzle 132 draws with the inner ring and penetrates the coaxial setting of pipe 12, the outer loop draws the outer wall bottom that pipe 11 and inner ring draw and penetrate pipe 12 and all is the loudspeaker form, go up secondary air passageway 111 and locate on the outer wall that the outer loop draws the pipe 11 loudspeaker form, go up secondary air passageway 121 and locate on the outer wall that the inner ring draws the pipe 12 loudspeaker form, improve the efficiency of assembly and the effect of directly spouting. The bottom of nozzle holder 13 is connected with intake pipe 15, intake pipe 15 is "7" font and extends, has solved the exposed drawback of the intake pipe of the burner that directly spouts among the prior art, effectively protects intake pipe 15.

Further, the household gas stove direct-injection burner further comprises an anti-dry-burning device 5, the anti-dry-burning device 5 comprises an anti-dry-burning probe 51, an anti-dry-burning support 52 and a locking screw, the anti-dry-burning probe 51 is installed on the anti-dry-burning support 52, and the anti-dry-burning support 52 is installed on the injection seat 10 through the locking screw. In order to facilitate the contact between the dry-burning prevention probe 51 and the bottom of the cooker, the gas distribution disc assembly 2, the outer fire cover 3, the inner fire cover 4 and the flow distribution seat 24 are provided with through coaxial through holes 8, and the dry-burning prevention probe 51 is matched with and penetrates through the through holes 8 to be in contact with the bottom of the cooker, so that dry burning is avoided.

To sum up, the utility model discloses an air door regulating plate 142 rotates through spacing spring 141 and connects in nozzle holder 13, make the air door regulating plate 142 that is located ventilation hole 133 top when rotating steerable ventilation hole 133 close or open, or reduce and enlarge the size of ventilation hole 133, thereby adjust the size of the wind-force that gets into ventilation hole 133, need not just can adjust after will dismantling fixed cover like traditional air door device, it is convenient to adjust, moreover, the steam generator is simple in structure, and is with low costs, and go up secondary air channel 111, lower secondary air channel 112, go up secondary air channel 121 and secondary air channel 122's setting can make gas and air mixing more even down, prevent that the insufficient condition of burning from appearing.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims (10)

1. The utility model provides a burner is directly spouted to domestic gas-cooker which characterized in that: the fire-extinguishing fire;

the injection device (1) comprises an injection seat (10), an outer ring injection pipe (11), an inner ring injection pipe (12), a nozzle seat (13) and an air damper device (14);

the air door device (14) comprises a limiting spring (141) and a rotatable air door adjusting plate (142), the air door adjusting plate (142) extends out of the outer side of the kitchen range bottom shell (9), an upper secondary air channel (111) and a lower secondary air channel (112) for supplementing air are arranged at the inlet of the outer ring ejector pipe (11), and an upper secondary air channel (121) and a lower secondary air channel (122) for supplementing air are arranged at the inlet of the inner ring ejector pipe (12);

the nozzle seat (13) is provided with an outer ring nozzle (131) and an inner ring nozzle (132) respectively, the bottom of the nozzle seat (13) is connected with an air inlet pipe (15), and the air inlet pipe (15) extends in a 7 shape.

2. The direct injection burner of a household gas cooker according to claim 1, characterized in that: air door device (14) are installed on nozzle holder (13), be equipped with on air door regulating plate (142) draw penetrate tub (11) or inner ring draw penetrate income wind gap (143) that pipe (12) bottom is linked together with the outer ring, be equipped with on nozzle holder (13) with go into corresponding ventilation hole (133) in wind gap (143), air door regulating plate (142) are located ventilation hole (133) and can open or close ventilation hole (133) when rotating, ventilation hole (133) and secondary air channel (112)/lower secondary air inlet channel (122) intercommunication.

3. The direct injection burner of a household gas cooker according to claim 1, characterized in that: the air door adjusting plate (142) is provided with a rotating handle (144) capable of pushing the air door adjusting plate (142) through external force, and the rotating handle (144) extends downwards out of the kitchen range bottom shell (9) and is arranged in an arc shape.

4. The direct injection burner of a household gas cooker according to claim 1, 2 or 3, characterized in that: the household gas stove direct-injection burner further comprises an anti-dry-burning device (5), the anti-dry-burning device (5) comprises an anti-dry-burning probe (51), an anti-dry-burning support (52) and a locking screw, the anti-dry-burning probe (51) is installed on the anti-dry-burning support (52), and the anti-dry-burning support (52) is installed on the injection seat (10) through the locking screw.

5. The direct injection burner of a household gas cooker according to claim 1, characterized in that: a plurality of circumferentially arranged outer ring combustion holes (30) are formed in the outer fire cover (3), a plurality of circumferentially arranged inner ring combustion holes (40) are formed in the inner fire cover (4), and an outer ring cavity (20) communicated with the outer fire cover (3) and an inner ring cavity (21) communicated with the inner fire cover (4) are formed in the gas distribution disc assembly (2); the outlet of the outer ring ejector pipe (11) is communicated with the outer ring cavity (20), and the outlet of the inner ring ejector pipe (12) is communicated with the inner ring cavity (21).

6. The direct injection burner of a household gas cooker according to claim 1, characterized in that: outer loop nozzle (131) draw with the outer loop and penetrate pipe (11) coaxial setting, inner ring nozzle (132) draw with the inner ring and penetrate pipe (12) coaxial setting, the outer loop draws and penetrates pipe (11) and inner ring and penetrate the outer wall bottom of pipe (12) and all be the loudspeaker form, go up secondary air passageway (111) and locate on the outer wall that outer loop draws penetrated pipe (11) loudspeaker form, go up secondary air passageway (121) and locate on the outer wall that inner ring draws and penetrates pipe (12) loudspeaker form.

7. The direct injection burner of a household gas cooker according to claim 6, characterized in that: spring grooves (134) used for installing positioning limiting springs (141) are respectively formed in the peripheries of the nozzle seat (13) corresponding to the outer ring nozzle (131) and the inner ring nozzle (132), and the spring grooves (134) are located on the inner sides of the vent holes (133).

8. The direct injection burner of a household gas cooker according to claim 5, characterized in that: the gas distribution disc assembly is characterized in that an outer ring gas inlet (22) is arranged at the position, corresponding to the outer ring cavity (20), of the bottom of the gas distribution disc assembly (2), the outer ring gas inlet (22) is communicated with the outer ring cavity (20), an inner ring gas inlet (23) is arranged at the position, corresponding to the inner ring cavity (21), of the bottom of the gas distribution disc assembly (2), and the inner ring gas inlet (23) is communicated with the inner ring cavity (21).

9. The direct injection burner of a household gas cooker according to claim 8, characterized in that: still be equipped with reposition of redundant personnel seat (24) that are used for sealing and keep apart outer ring chamber (20), inner ring chamber (21) in minute disk subassembly (2), reposition of redundant personnel seat (24) are close to outer ring air inlet (22) position department is equipped with guide plate (240) that are used for the direction gas to flow.

10. The direct injection burner of a household gas cooker according to claim 8, characterized in that: an air guide inclined plane (200) is arranged in the outer ring cavity (20), and the air guide inclined plane (200) inclines downwards along one side of the outer ring cavity (20) where the inner ring air inlet (23) is located to one side of the outer ring cavity (20) where the outer ring air inlet (22) is located.

Images