CN219713348U - Kitchen range - Google Patents

Abstract

The utility model discloses a stove, relates to the technical field of stoves, and aims to solve the problem of uneven mixing of fuel gas and primary air. The kitchen range comprises a base, a distributor, a guide plate, an inner ring fire injection pipe and an outer ring fire injection pipe. Wherein, the base is provided with an inner ring fire air outlet and an outer ring fire air outlet. The inner ring fire injection pipe is arranged at the bottom of the base, one end of the inner ring fire injection pipe is communicated with the inner ring fire air outlet, the outer ring fire injection pipe is arranged at the bottom of the base, and one end of the outer ring fire injection pipe is communicated with the outer ring fire air outlet. The distributor is provided with an inner ring fire gas distribution cavity and an outer ring fire gas distribution cavity, the distributor cover is arranged on the base, the inner ring fire gas distribution cavity is communicated with the inner ring fire gas outlet, and the outer ring fire gas distribution cavity is provided with an inlet communicated with the outer ring fire gas outlet. The guide plate is arranged in the outer ring fire gas distribution cavity, is connected with the inner wall surface of the outer ring fire gas distribution cavity and is positioned above the inlet, and the guide plate is used for guiding the mixed gas of the fuel gas and the primary air so that the mixed gas is further mixed in the outer ring fire gas distribution cavity.

Description

Kitchen range

Technical Field

The utility model relates to the technical field of stoves, in particular to a stove.

Background

The gas is combusted by the kitchen range to generate flame to generate heat for cooking by a user, and the mixed gas of the gas and the primary air required by combustion flows into the distributor from the kitchen range base and is mixed in the distributor. The fuel gas and the primary air flow out of the distributor after being mixed to be ignited to form flame, and the fuel gas and the primary air cannot be fully mixed, so that insufficient combustion of the fuel gas is caused.

Disclosure of Invention

The embodiment of the utility model provides a stove which is used for solving the problem of insufficient combustion of fuel gas caused by insufficient mixing of primary air and the fuel gas.

In order to achieve the above object, the embodiment of the present utility model adopts the following technical scheme:

a kitchen range comprises a base, an inner ring fire injection pipe, an outer ring fire injection pipe, a distributor and a guide plate. Wherein, the base is provided with an inner ring fire air outlet and an outer ring fire air outlet, and the inner ring fire air outlet and the outer ring fire air outlet are arranged at intervals. The distributor is provided with an inner ring fire gas distribution cavity and an outer ring fire gas distribution cavity, and further, the distributor cover is arranged on the base. In this case, the inner ring fire gas distribution chamber is communicated with the inner ring fire gas outlet, the outer ring fire gas distribution chamber is provided with an inlet communicated with the outer ring fire gas outlet, and the outer ring fire gas distribution chamber is communicated with the outer ring fire gas outlet through the inlet.

On the basis, the inner ring fire injection pipe and the outer ring fire injection pipe are arranged at the bottom of the base. Further, one end of the inner ring fire injection pipe is communicated with the inner ring fire air outlet, and one end of the outer ring fire injection pipe is communicated with the outer ring fire air outlet.

Under the condition, when the cooker burns fuel gas to form flame for a user to cook, when the fuel gas flowing at high speed enters the inner annular flame injection pipe, the air at the pipe orifice of the inner annular flame injection pipe, namely primary air, is injected. Thus, the mixed gas of the fuel gas and the primary air flows along the inner ring fire injection pipe, and flows into the inner ring fire gas distribution cavity communicated with the inner ring fire gas outlet formed in the base, the fuel gas and the primary air are mixed in the inner ring fire gas distribution cavity, and the mixed fuel gas flows out of the distributor and is ignited to form inner ring flame.

When the gas is combusted by the kitchen range to form outer ring flame, the gas flowing at high speed enters the outer ring flame injection pipe, the air for injecting the pipe orifice of the outer ring flame injection pipe is taken as primary air to enter the outer ring flame injection pipe together with the gas, the mixed gas of the gas and the primary air flows along the outer ring flame injection pipe and flows into an outer ring flame gas distribution cavity communicated with the outer ring flame gas outlet formed on the base, the gas and the primary air are mixed in the outer ring flame gas distribution cavity, and the mixed gas flows out of the distributor and is ignited to form the outer ring flame.

On the basis, the guide plate is arranged in the outer ring fire gas distribution cavity, the guide plate is connected with the wall surface of the outer ring fire gas distribution cavity, and the guide plate is positioned above the inlet of the outer ring fire gas distribution cavity.

When the stove burns fuel gas to form outer ring flame, the fuel gas flowing at high speed ejects primary air at the pipe orifice of the outer ring flame ejecting pipe, and then the fuel gas and the primary air flow along the outer ring flame ejecting pipe and flow out from the outer ring flame air outlet on the base. In the process that the mixed gas of the fuel gas and the primary air flowing out of the outer ring fire air outlet enters the outer ring fire air distribution cavity through the inlet of the outer ring fire air distribution cavity, the fuel gas and the primary air flow along the inlet and contact the guide plate arranged above the inlet. Under the guiding action of the guide plate, the mixed gas of the fuel gas and the primary air flows along the extending direction of the guide plate, gradually fills the outer ring fire gas distribution cavity, and then flows out of the outer ring fire gas distribution cavity. Instead of flowing out from the outer annular fire gas distribution chamber when the mixed gas of the fuel gas and the primary air is not uniformly distributed in the outer annular fire gas distribution chamber after the fuel gas and the primary air flow into the outer annular fire gas mixing chamber.

It can be understood that the gas and the primary air are further mixed while gradually filling the outer ring fire gas distribution cavity, so that the gas and the primary air can be fully mixed, and the combustion efficiency of the gas is improved. And after the gas mixture of the fuel gas and the primary air is uniformly distributed in the outer ring fire gas distribution cavity, the stable and uniform gas pressure of the gas mixture of the fuel gas and the primary air flowing out of the outer ring fire gas distribution cavity can be ensured, and the flame combustion is more stable.

From the above, it is known that the mixing degree of the fuel gas and the primary air is improved. The stove provided by the utility model is provided with the guide plate above the inlet of the outer ring fire gas distribution cavity, the guide plate can enable the mixed gas of the fuel gas and the primary air entering the outer ring fire gas distribution cavity through the inlet to flow along the extending direction of the guide plate, so that the outer ring fire gas distribution cavity is uniformly distributed, and in the process that the fuel gas and the primary air are distributed in the outer ring fire gas distribution cavity, the fuel gas and the primary air are fully mixed.

In some embodiments of the utility model, the inlet does not project beyond the boundary of the baffle on the plane in which the baffle lies.

In some embodiments of the utility model, the inlet is provided in the bottom wall surface of the outer ring fire distribution chamber.

In some embodiments of the present utility model, the baffle is provided with a plurality of diversion holes, and the diversion holes are spaced apart.

In some embodiments of the utility model, a primary air cavity is arranged on the base, an opening is arranged above the primary air cavity, the other end of the inner ring fire injection pipe is communicated with the primary air cavity, and the other end of the outer ring fire injection pipe is communicated with the primary air cavity. Based on the above, at least part of the inner annular fire nozzle is positioned in the primary air cavity, the injection direction of the inner annular fire nozzle is aligned with the other end of the inner annular fire injection pipe, at least part of the outer annular fire nozzle is positioned in the primary air cavity, and the injection direction of the outer annular fire nozzle is aligned with the other end of the outer annular fire injection pipe.

In some embodiments of the utility model, a first baffle is arranged on the distributor, the first baffle is positioned above the primary air cavity, and a gap is formed between the first baffle and the base; and the projection of the opening above the primary air cavity on the plane of the first baffle plate does not exceed the boundary of the first baffle plate.

In some embodiments of the present utility model, the upper surface of the base is provided with a second baffle, the second baffle is disposed around the primary air chamber, and a notch is disposed on a side of the second baffle away from the center of the base, and an upper end of the second baffle contacts the first baffle.

In some embodiments of the utility model, the cooktop further includes a divider plate disposed within the primary air cavity, the divider plate dividing the primary air cavity into an inner annular primary air cavity and an outer annular primary air cavity. Based on this, at least part of the inner annular fire nozzle is located within the inner annular primary air chamber and at least part of the outer annular fire nozzle is located within the outer annular primary air chamber.

In some embodiments of the utility model, the distributor comprises an inner ring fire distributor and an outer ring fire distributor, wherein the inner ring fire distributor has an inner ring fire distribution chamber and the outer ring fire distributor has an outer ring fire distribution chamber, and the inner ring fire distributor and the outer ring fire distributor are of split design.

In some embodiments of the utility model, the axis of the inner annular flame injection pipe is at an angle to the axis of the outer annular flame injection pipe. Based thereon, the inner annular fire nozzle includes a first segment and a second segment, the first segment and the second segment being in communication. The extending direction of the first section is the same as that of the outer ring fire nozzle, at least part of the second section is positioned in the inner ring primary air cavity, and the extending direction of the second section is the same as that of the inner ring fire injection pipe.

Drawings

FIG. 1 is a schematic diagram of a stove according to an embodiment of the present utility model;

FIG. 2 is a second schematic diagram of a stove according to an embodiment of the present utility model;

FIG. 3 is a third schematic diagram of a stove according to an embodiment of the present utility model;

FIG. 4 is a schematic diagram of a stove according to an embodiment of the present utility model;

FIG. 5 is a schematic diagram of a stove according to an embodiment of the present utility model;

FIG. 6 is a schematic diagram of a stove according to an embodiment of the present utility model;

FIG. 7 is a schematic diagram of a kitchen range according to an embodiment of the present utility model;

FIG. 8 is a schematic diagram of a stove according to an embodiment of the present utility model;

FIG. 9 is a diagram of a kitchen range according to an embodiment of the present utility model;

FIG. 10 is a schematic view of a kitchen range according to an embodiment of the present utility model;

FIG. 11 is a schematic view of the inner and outer annular flame nozzles according to an embodiment of the present utility model;

FIG. 12 is a schematic diagram of a kitchen range according to an embodiment of the present utility model;

FIG. 13 is a schematic diagram of a kitchen range according to an embodiment of the present utility model;

FIG. 14 is a diagram of a kitchen range according to an embodiment of the present utility model;

FIG. 15 is a schematic view of a distributor according to an embodiment of the present utility model;

fig. 16 is an enlarged view at a in fig. 3.

Reference numerals:

100-cooking utensils;

1-a base; 10-a primary air chamber; 101-dividing plates; 1011-inner ring primary air chamber; 1012-an outer ring primary air chamber; 1000-mounting slots; 11-an inner ring fire air outlet; 12-an outer ring fire air outlet; 13-a mixing chamber;

2-an igniter; 21-an inner ring fire gas-dividing cavity; 211-inner ring fire distributor; 2110-inner ring fire holes 22-outer ring fire gas distribution cavities; 220-inlet; 221-an outer ring fire distributor; 2210-outer ring fire hole; 23-a first baffle; 24-a second baffle;

31-an inner ring fire injection pipe; 32-an outer ring fire injection pipe;

4-a deflector; 40-diversion holes;

41-inner annular fire nozzle; 411-first segment; 412-a second section; 42-outer annular fire nozzle.

Detailed Description

Embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

In the description of the present utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As used herein, "about," "approximately" or "approximately" includes the stated values as well as average values within an acceptable deviation range of the particular values as determined by one of ordinary skill in the art in view of the measurement in question and the errors associated with the measurement of the particular quantity (i.e., limitations of the measurement system).

The kitchen range is a household appliance commonly used in a household kitchen, and generally comprises a shell, an injection pipe, a base and a distributor covered on the base. The shell is provided with a mounting cavity for mounting other parts such as the injection pipe, the base, the distributor and the like. Common stoves include an embedded gas stove and an upper air inlet gas stove. The primary air required by the embedded gas stove when burning gas is provided by air below the cooking bench, so that the burning working condition of the embedded gas stove can be affected by the primary air deficiency caused by insufficient air inlet of the cabinet. When the embedded gas cooker is used, a ventilation opening is required to be reserved for a user's cabinet, and some users do not reserve the ventilation opening for the cabinet during decoration, or use for a long time, the situation that the ventilation opening is blocked occurs, primary air is insufficient, the combustion state of the cooker is affected, and therefore carbon monoxide is increased and yellow flame is generated.

Compared with the embedded gas stove, the upper air inlet type gas stove has the advantages that primary air and secondary air required by combustion of the upper air inlet type gas stove are provided by air above a cooking bench, so that a ventilation opening is not required to be reserved on a cabinet, and further the condition that the ventilation opening is blocked is avoided. However, in order to achieve the upper air intake, the nozzle of the stove needs to be arranged on the side of the upper surface of the stove, which increases the volume of the stove, and in order to reduce the volume of the stove, the base design of the upper air intake type stove is generally compact, and the volume of the gas passage in the base is generally sacrificed to achieve the purpose of reducing the volume of the base. In this case, the fuel gas is injected into the injection pipe from the nozzle, further enters the base, flows into the distributor communicated with the base, and flows out from the distributor to be ignited to form flame. In the process, the volume of the gas passage in the base is reduced, so that the gas and the primary air are not fully mixed and enter the distributor, and the flow rate attenuation of the gas is reduced due to the reduced volume of the gas passage in the base, so that the gas flows into the distributor at a higher flow rate, and a part of the gas is flushed out of the distributor in advance to be ignited to form flame under the condition that the gas is not uniformly distributed in the distributor, and the phenomenon of nonuniform flame combustion can occur.

The present utility model provides a cooker to enhance the mixing degree of gas and primary air, and as shown in fig. 1, the cooker 100 mainly includes a base 1 and a distributor 2. As shown in fig. 2, the base 1 is provided with an inner ring fire air outlet 11 and an outer ring fire air outlet 12, and the inner ring fire air outlet 11 and the outer ring fire air outlet 12 are arranged at intervals. As further shown in fig. 3 (fig. 3 is a sectional view taken along the broken line A-A in fig. 1), the distributor 2 has an inner annular fire-distributing chamber 21 and an outer annular fire-distributing chamber 22, and further, the distributor 2 is covered on the base 1. In this case, the inner ring fire gas-dividing chamber 21 communicates with the inner ring fire gas outlet, the outer ring fire gas-dividing chamber 22 is provided with an inlet 220 communicating with the outer ring fire gas outlet 12, and the outer ring fire gas-dividing chamber 22 communicates with the outer ring fire gas outlet 12 through the inlet 220.

On this basis, as shown in fig. 4, the stove 100 further comprises an inner ring fire injection pipe 31 and an outer ring fire injection pipe 32 which are arranged at the bottom of the base 1. As further shown in fig. 5, one end of the inner ring fire injection pipe 31 is communicated with the inner ring fire air outlet 11, and one end of the outer ring fire injection pipe is communicated with the outer ring fire air outlet 12 (see fig. 3).

In this case, when the stove 100 burns fuel gas to form flame for cooking by a user, the fuel gas flowing at high speed enters the inner ring fire injection pipe 31 to inject air at the pipe orifice of the inner ring fire injection pipe 31, namely primary air. In this way, the mixed gas of the fuel gas and the primary air flows along the inner annular fire injection pipe 31, flows into the inner annular fire gas distribution cavity 21 communicated with the inner annular fire gas outlet 11 formed on the base 1, mixes the fuel gas and the primary air in the inner annular fire gas distribution cavity 21, and flows out of the distributor 2 and is ignited to form an inner annular flame.

When the stove 100 burns fuel gas to form outer ring flame, when the fuel gas flowing at high speed enters the outer ring flame injection pipe 32, air which injects the mouth of the outer ring flame injection pipe 32 is taken as primary air to enter the outer ring flame injection pipe 32 together with the fuel gas, mixed gas of the fuel gas and the primary air flows along the outer ring flame injection pipe 32 and flows into the outer ring flame gas distribution cavity 22 communicated with the outer ring flame gas outlet 12 formed on the base 1, the fuel gas and the primary air are mixed in the outer ring flame gas distribution cavity 22, and the mixed fuel gas flows out of the distributor 2 and is ignited to form the outer ring flame.

In this case, in order to achieve the above-mentioned improvement of the mixing degree of the fuel gas and the primary air, as shown in fig. 6, the stove 100 provided by the present utility model further includes a deflector 4, and the deflector 4 is disposed in the outer ring fire gas-dividing chamber 22. The baffle 4 is connected to the wall of the outer annular fire-splitting chamber 22 and the baffle 4 is located above the inlet 220 of the outer annular fire-splitting chamber 22.

In this way, when the stove 100 burns fuel gas to form an outer ring flame, the fuel gas flowing at a high speed injects primary air at the pipe orifice of the outer ring flame injection pipe 32, and then the fuel gas and the primary air flow along the outer ring flame injection pipe 32 and flow out from the outer ring flame air outlet 12 on the base 1. In the process that the mixed gas of the fuel gas and the primary air flowing out from the outer ring fire air outlet 12 enters the outer ring fire air distribution chamber 22 through the inlet 220 of the outer ring fire air distribution chamber 22, the fuel gas and the primary air flow along the inlet 220 and contact the baffle 4 disposed above the inlet 220. Under the guiding action of the guide plate 4, the mixed gas of the fuel gas and the primary air flows along the extending direction of the guide plate 4, gradually fills the outer ring fire gas-dividing cavity 22, and then flows out of the outer ring fire gas-dividing cavity 22. Rather than flowing out of the outer annular flame-splitting chamber 22 in the event that the outer annular flame-splitting chamber 22 is not uniformly covered with the mixed gas of the gas and the primary air after the gas and the primary air flow into the outer annular flame-mixing chamber 22.

It will be appreciated that while the gas and primary air gradually fills the outer ring fire gas distribution chamber 22, the gas and primary air will be further mixed, thereby ensuring that the gas and primary air can be sufficiently mixed and improving the combustion efficiency of the gas. And after the gas mixture of the fuel gas and the primary air is uniformly distributed in the outer ring fire gas distribution cavity 22, the pressure of the gas mixture of the fuel gas and the primary air flowing out of the outer ring fire gas distribution cavity 22 can be ensured to be stable and uniform, and the flame is more stable in combustion. In addition, the guide plate 4 plays a role in guiding, and has a certain blocking or buffering effect on the mixed gas of the fuel gas and the primary air, so that the flow speed of the mixed gas of the fuel gas and the primary air is slowed down, the mixed gas of the fuel gas and the primary air flows out of the distributor 2 more stably and is ignited to form flame, and the phenomenon that the mixed gas of the fuel gas and the primary air has too fast flow speed, uneven air and uneven flame combustion caused by the too fast flow speed is avoided.

From the above, it is known that the mixing degree of the fuel gas and the primary air is improved. The stove 100 provided by the utility model is provided with the guide plate 4 above the inlet 220 of the outer ring fire gas distribution cavity 22, and the guide plate 4 can enable the mixed gas of the fuel gas and the primary air entering the outer ring fire gas distribution cavity 22 through the inlet 220 to flow along the extending direction of the guide plate 4, so that the outer ring fire gas distribution cavity 22 is uniformly distributed, and in the process that the fuel gas and the primary air are distributed in the outer ring fire gas distribution cavity 22, the fuel gas and the primary air are fully mixed.

Next, the structure and arrangement of the above-mentioned baffle 4 will be further described, as shown in fig. 7 (the dotted line in fig. 7 is a contour line of the projection of the inlet 220 on the baffle 4), and the projection of the inlet 220 of the above-mentioned outer ring fire-dividing chamber 22 on the plane of the baffle 4 does not exceed the boundary of the baffle 4, that is, the baffle 4 can cover the opening range of the inlet 220.

In this way, it is ensured that the mixed gas of the gas and the primary air does not flow out of the outer ring flame-dividing chamber 22 directly without contacting the baffle plate 4 in the process of entering the outer ring flame-dividing chamber 22 through the inlet 220. Ensuring that the gas and primary air flow out of the outer annular flame-splitting chamber 22 after being thoroughly mixed in the outer annular flame-splitting chamber 22.

On this basis, as shown in fig. 8, under the condition that the flow guiding effect of the flow guiding plate 4 is not affected, a plurality of flow dividing holes 40 are formed in the flow guiding plate 4, and the plurality of flow dividing holes 40 are arranged at intervals.

In this case, the mixed gas of the fuel gas and the primary air flows out from the outer ring fire air outlet 12 of the base 1, and part of the mixed gas formed by the fuel gas and the primary air flows into the space above the deflector 4 through the plurality of diversion holes 40 formed in the deflector 4 in the process of entering the outer ring fire air distribution chamber 22 along the inlet 220. In this way the first and second components,

in the process of diffusing the mixed gas in the outer ring fire gas distribution cavity 22, the mixed gas formed by the fuel gas and the primary air cannot flow to the space above the guide plate 4 due to the existence of the guide plate 4, or the mixed gas formed by the fuel gas and the primary air cannot flow into the space above the guide plate 4 due to the incapability of timely flowing into the space above the guide plate 4 by the guide plate 4, so that the mixed gas can be ensured to be fully distributed in time. In order to ensure that the mixed gas formed by the fuel gas and the primary air can be uniformly and timely distributed at each position of the outer ring fire gas distribution cavity 22 in the process of diffusing in the outer ring fire gas distribution cavity 22, and further ensure that the mixed gas formed by the fuel gas and the primary air can flow out of the outer ring fire gas distribution cavity 22 more uniformly, flows out of the distributor 2 and is ignited to form uniform flame.

In some embodiments of the present utility model, the plurality of diversion holes 40 may be circular holes (see fig. 8) arranged at intervals, and the circular holes may be formed by a simple process and easy to process.

In other embodiments of the present utility model, as shown in fig. 9, the plurality of diversion holes 40 may be oval holes at intervals, or rectangular holes at intervals. Under the flow guiding effect of the flow guiding plate 4 is not affected, the aperture of the flow dividing hole 40 can be increased to a certain extent by the oval or rectangular holes, so that the mixed gas formed by the fuel gas and the primary air can flow to the space above the flow guiding plate 4 more smoothly. In still other embodiments of the present utility model, the diversion aperture 40 may also be a rectangular aperture disposed crosswise.

The number and the opening manner of the above-mentioned diversion holes 40 are not limited in the present utility model, so long as it is capable of ensuring that at least a part of the mixed gas formed by the fuel gas and the primary air flows to the space above the diversion plate 4 through the diversion holes 40 without affecting the diversion effect of the diversion plate 4.

In some embodiments of the present utility model, the deflector 4 and the distributor 2 may be fixedly connected by welding, or may be integrally formed by casting, that is, the deflector 4 and the wall surface of the outer ring fire gas distribution chamber 22 are fixedly connected. The design can simplify the assembly process of the kitchen range 100, and further improve the production efficiency to a certain extent.

In other embodiments of the present utility model, the deflector 4 and the distributor 2 may be separately designed, that is, the deflector 4 and the wall surface of the outer ring fire-distributing chamber 22 are detachably connected. The design enables a user to detach the guide plate 4, so that the user can conveniently clean the inside of the distributor 2.

As shown in fig. 10, the inlet 220 of the outer ring flame-dividing chamber 22 is provided on the bottom wall surface of the outer ring flame-dividing chamber 22.

Because the openings of the inner ring fire air outlet 11 and the outer ring fire air outlet 12 on the base 1 are opened in the vertical direction, based on this, in the case that the inlet 220 of the outer ring fire air distribution chamber 22 is provided on the bottom wall surface of the outer ring fire air distribution chamber 22, the mixed gas of the fuel gas and the primary air flows out from the outer ring fire air outlet 12 and flows toward the inlet 220, and in the process that the inlet 220 is provided on the bottom wall surface of the outer ring fire air distribution chamber 22, the mixed gas of the fuel gas and the primary air can smoothly flow toward the deflector 4 along the inlet 220. The inlet 220 is arranged on the bottom wall surface of the outer ring fire gas distribution cavity 22, so that the flow rate of the fuel gas and the primary air is ensured not to be excessively lost before the fuel gas and the primary air enter the outer ring fire gas mixture cavity 22, and further, the mixed gas of the fuel gas and the primary air is ensured to have enough kinetic energy to flow along the guide plate 4 into the outer ring fire gas distribution cavity 22 when contacting the guide plate 4, and the mixed gas is uniformly distributed in the outer ring fire gas distribution cavity 22.

Next, the structure of the base 1 of the stove 100 provided by the present utility model will be described, and as shown in fig. 2, a primary air chamber 10 is provided on the base 1, and an opening is provided above the primary air chamber 10. In this case, the other end of the inner annular flame injection pipe 31 (not shown in fig. 2) communicates with the primary air chamber 10, and the other end of the outer annular flame injection pipe 32 (not shown in fig. 2) also communicates with the primary air chamber 10. The other end of the inner ring fire injection pipe 31 is the end of the inner ring fire injection pipe 31 away from the inner ring fire air outlet 11, and the other end of the outer ring fire injection pipe 32 is the end of the outer ring fire injection pipe 32 away from the outer ring fire air outlet 12.

With continued reference to FIG. 2, the cooktop 100 provided by the present utility model further includes an inner annular flame nozzle 41 and an outer annular flame nozzle 42. Wherein, at least part of the inner annular fire nozzle 41 is positioned in the primary air cavity 10, the injection direction of the inner annular fire nozzle 41 is aligned with the other end of the inner annular fire injection pipe 31, at least part of the outer annular fire nozzle 42 is positioned in the primary air cavity 10, and the injection direction of the outer annular fire nozzle 42 is aligned with the other end of the outer annular fire injection pipe 32.

Thus, when the inner ring flame nozzle 41 injects the fuel gas into the inner ring flame injection pipe 31, the fuel gas is injected into the inner ring flame injection pipe 31 from the portion of the inner ring flame nozzle 41 located in the primary air chamber 10, and during the injection, the fuel gas flowing at high speed injects the primary air near the orifice of the inner ring flame injection pipe 31. When the outer annular fire nozzle 42 sprays fuel gas into the outer annular fire injection pipe 32, the fuel gas is sprayed into the outer annular fire injection pipe 32 from the part of the outer annular fire nozzle 42 located in the primary air cavity 10, and in the process of spraying the fuel gas through the outer annular fire nozzle 42, the fuel gas flowing at high speed is used for injecting primary air near the pipe orifice of the outer annular fire injection pipe 32. Further, the opening formed above the primary air chamber 10 can ensure that air is continuously replenished into the primary air chamber 10 to ensure that the primary air is sufficient.

As can be seen from the above, the base 1 is provided with the primary air chamber 10, so that the inner ring fire injection pipe 31 and the outer ring fire injection pipe 32 complete injection of primary air in the space above the base 1 when injecting fuel gas, and further the stove 100 can realize upper air intake.

As can be seen from the above description, the base 1 of the stove 100 provided by the present utility model is provided with the primary air chamber 10, so that the inner ring fire injection pipe 31 and the outer ring fire injection pipe 32 can inject air in the primary air chamber as primary air when injecting fuel gas, and then the stove 100 can realize upper air intake.

In some embodiments of the present utility model, as shown in fig. 4, the axis direction of the inner ring fire injection pipe 31 and the axis direction of the outer ring fire injection pipe 32 form an included angle. On this basis, as shown in fig. 11, the inner ring fire nozzle 41 includes a first section 411 and a second section 412, and the first section 411 and the second section 412 communicate. Wherein, the extending direction of the first section 411 is the same as the extending direction of the outer ring fire nozzle 42, at least part of the second section 412 is located in the inner ring primary air cavity 1011, and the extending direction of the second section 412 is the same as the axial direction of the inner ring fire injection pipe 31.

Based on this, while ensuring that the inner ring flame nozzle 41 and the outer ring flame nozzle 42 can inject the fuel gas into the corresponding inner ring flame injection pipe 31 and outer ring flame injection pipe 32, the extending direction of the second section 412 of the inner ring flame nozzle 41 is the same as the axial direction of the outer ring flame nozzle 42. Referring to fig. 11, the second section 412 of the inner annular fire nozzle 41 extends in the same direction as the axial direction of the outer annular fire nozzle 42, i.e., the second section 412 of the inner annular fire nozzle 41 is parallel to the outer annular fire nozzle 42.

In this way, when the air supply pipeline is connected with the inner annular fire nozzle 41 and the outer annular fire nozzle 42, the air supply pipeline can be reduced in bending or avoid crossing, the parallel arrangement of the air supply pipeline is beneficial to the development of the work such as the arrangement and the installation of the gas air supply pipeline, and the parallel arrangement of the second section 412 of the inner annular fire nozzle 41 and the outer annular fire nozzle 42 plays a role in simplifying the pipeline design.

On this basis, as shown in fig. 12, the cooking appliance 100 further includes a partition plate 101, and the partition plate 101 is disposed in the primary air chamber 10. The partition plate 101 is used to partition the primary air chamber 1011 into an inner annular primary air chamber 1011 and an outer annular primary air chamber 1012, the inner annular primary air chamber 1011 and the outer annular primary air chamber 1012 being relatively independent from each other. Based on this, at least part of the inner annular flame nozzle 41 is located within the inner annular primary air chamber 1011 and at least part of the outer annular flame nozzle 42 is located within the outer annular primary air chamber 1012.

In this way, in the process of injecting fuel gas, the fuel gas injected by the inner annular fire nozzle 41 and the outer annular fire nozzle 42 can inject air in the inner annular primary air cavity 1012, and the fuel gas injected by the outer annular fire nozzle 42 can inject air in the outer annular primary air cavity 1012, so that interference between the inner annular fire nozzle 41 and the outer annular fire nozzle 42 is reduced or eliminated.

In some embodiments of the present utility model, the partition plate 101 may be fixedly disposed in the primary air chamber 10, or may be detachably disposed in the primary air chamber 10. When the partition plate 101 is fixedly disposed in the primary air chamber 10, the partition plate 101 and the base 1 may be fixedly connected by welding.

And when the partition plate 101 is detachably provided in the primary air chamber 10, the base 1 and the partition plate 101 are separately formed. In this case, as shown in fig. 13, a mounting groove 1000 may be formed in the primary air chamber 10, and the mounting groove 1000 is formed between the inner ring fire nozzle 41 and the outer ring fire nozzle 42. In this way, the partition plate 101 can be placed in the installation groove 1000, which in turn partitions the primary air chamber 10 into the inner annular primary air chamber 1011 and the outer annular primary air chamber 1012. And when the kitchen range 100 is cleaned, the partition plate 101 can be taken out, so that a user can clean the primary air cavity 10 conveniently.

On this basis, as shown in fig. 14, the distributor 2 is provided with a first baffle plate 23, the first baffle plate 23 is located above the primary air chamber 10, and a gap is provided between the first baffle plate 23 and the base 1 (see fig. 3). The first baffle 23 serves to block the primary air chamber 10 from above the opening.

In this way, in the process of injecting the fuel gas into the inner annular fire nozzle 41 and the outer annular fire nozzle 42, the phenomenon that the fuel gas flows out from the opening above the primary air cavity 10 can be avoided, and then the fuel gas remained in the primary air cavity 10 can be avoided when the inner annular fire burns, so that the use safety of the stove 100 is ensured.

In addition, referring to fig. 3, the projection of the opening above the primary air chamber 10 on the plane of the first baffle 23 does not exceed the boundary of the first baffle 23, so that the first baffle 23 can effectively shield the opening above the primary air chamber 10, so as to avoid the phenomenon that fuel gas flows out from the opening above the primary air chamber 10.

On the basis of this, the upper surface of the base 1 is provided with a second baffle 24 (see fig. 12). The second barrier 24 is disposed around the primary air chamber 10, and the upper end of the second barrier 24 is also in contact with the first barrier 23. In addition, a side of the second shutter 24 remote from the center of the base 1 is provided with a notch (see fig. 14).

In this way, on the basis of the first baffle plate 23 arranged on the distributor 2, the second baffle plate 24 is arranged on the upper surface of the base 1, and the first baffle plate 23 and the second baffle plate 24 seal one side of the primary air chamber 10 close to the center of the base 1 so as to avoid the gas in the primary air chamber 10 from escaping from the primary air chamber 10. Meanwhile, as the second baffle 24 is provided with a notch on one side far away from the center of the base 1, the air in the primary air cavity 10 can be ensured to be supplemented, and enough air can be ensured to be ejected into the ejection pipe by fuel gas.

As shown in FIG. 15, in some embodiments of the utility model, the distributor 2 of the cooktop 100 encloses an inner ring fire distributor 211 and an outer ring fire distributor 221, with the inner ring fire distributor 211 and the outer ring fire distributor being of split design. Wherein the inner ring fire distributor 211 has an inner ring fire distribution chamber 21 and the outer ring fire distributor 221 has an outer ring fire distribution chamber 22.

On this basis, an inner ring fire hole 2110 is formed in the inner ring fire distributor 211, the inner ring fire hole 2110 is formed around one end of the inner ring fire distributor 211, which is far away from the base 1, further, an outer ring fire hole 2210 is formed in the outer ring fire distributor 221, and the outer ring fire hole 2210 is formed around one side of the outer ring fire distributor 221, which is far away from the inner ring fire distributor 211.

In this case, the mixed gas formed by the gas and the primary air is introduced from the base 1 into the distributor 2 communicating with the base 1, specifically, the mixed gas is introduced into the inner ring fire distributor 211 and the outer ring fire distributor 221, respectively. Further, the mixed gas flows out from the inner ring flame holes 2110 of the inner ring flame distributor 211 and the outer ring flame holes 2210 of the outer ring flame distributor 221, and is ignited to form flames.

From the above, the inner ring fire distributor 211 and the outer ring fire distributor 221 are separately designed, so that the user can clean the inner ring fire distributor 211 and the outer ring fire distributor 221 independently. For example, when the fire holes of the inner ring fire distributor 211 are blocked, only the inner ring fire distributor 211 need be removed, without removing the entire distributor 2.

In some embodiments of the present utility model, referring to fig. 1 to 4, the base 1 further has a mixing chamber 13, and the mixing chamber 13 is disposed at a side of the lower surface of the base 1. And the air mixing chamber 13 is disposed in the axial direction of the outer ring fire injection pipe 32, further referring to fig. 16 (fig. 16 is an enlarged view of a in fig. 3), the air mixing chamber 13 is communicated with one end of the outer ring fire injection pipe 32, and the air mixing chamber 13 is also communicated with the inlet 220 of the outer ring fire air distribution chamber 22 through the outer ring fire air outlet 12.

In this way, the mixed gas formed by the fuel gas and the primary air flows out of the outer ring flame injection pipe 32 and then enters the mixed gas chamber 13 of the base 1. And the gas mixing chamber 13 is disposed in the axial direction of the outer ring fire injection pipe 32, so that when the mixed gas formed by the gas and the primary air flows along the outer ring fire injection pipe 32 and flows out of the outer ring fire injection pipe 32, the mixed gas formed by the gas and the primary air is first introduced into the gas mixing chamber 13, and when the mixed gas collides with the inner side wall of the gas mixing chamber, the gas and the primary air can be further mixed.

From the above, it is understood that the mixed gas formed by the fuel gas and the primary air can be further mixed in the above-described mixed gas chamber 13. Further, the gas and the primary air mixed in the gas mixing chamber 13 enter the outer ring fire gas-dividing chamber 22 through the outer ring fire gas outlet 12 formed on the base 1 and the inlet 220 of the outer ring fire gas-dividing chamber 22 communicated with the outer ring fire gas outlet 12. Under the guiding action of the guide plate 4, the mixed gas formed by the fuel gas and the primary air is diffused into the outer ring fire gas distribution cavity along the extending direction of the guide plate 4 and is fully distributed in the whole outer ring fire gas mixing cavity 22, so that the mixed gas formed by the fully mixed fuel gas and the primary air flows out and is ignited to form flame for cooking by a user.

In the description of the present specification, a particular feature, structure, material, or characteristic may be combined in any suitable manner in one or more embodiments or examples.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims (10)

1. A cooktop, characterized in that it comprises:

the base is provided with an inner ring fire air outlet and an outer ring fire air outlet, and the inner ring fire air outlet and the outer ring fire air outlet are arranged at intervals;

the inner ring fire injection pipe is arranged at the bottom of the base, and one end of the inner ring fire injection pipe is communicated with the inner ring fire air outlet;

the outer ring fire injection pipe is arranged at the bottom of the base, and one end of the outer ring fire injection pipe is communicated with the outer ring fire air outlet;

the fire distributor is provided with an inner ring fire gas distribution cavity and an outer ring fire gas distribution cavity, the inner ring fire gas distribution cavity is communicated with the inner ring fire gas outlet, and the outer ring fire gas distribution cavity is provided with an inlet communicated with the outer ring fire gas outlet;

the outer ring fire gas distribution cavity is internally provided with a guide plate, and the guide plate is connected with the wall surface of the outer ring fire gas distribution cavity and is positioned above the inlet.

2. The cooktop of claim 1, wherein the projection of the inlet onto the plane of the baffle does not exceed the boundary of the baffle.

3. The cooking appliance according to claim 2, wherein the inlet is provided in a bottom wall surface of the outer ring fire gas distribution chamber.

4. A cooking appliance according to claim 2, wherein,

the guide plate is provided with a plurality of diversion holes, and the diversion holes are arranged at intervals.

5. A cooking appliance according to any one of claims 1 to 4, characterized in that,

the base is provided with a primary air cavity, an opening is arranged above the primary air cavity, the other end of the inner ring fire injection pipe is communicated with the primary air cavity, and the other end of the outer ring fire injection pipe is communicated with the primary air cavity;

the inner annular fire nozzle is at least partially positioned in the primary air cavity, and the injection direction of the inner annular fire nozzle is aligned with the other end of the inner annular fire injection pipe;

and the outer ring fire nozzle is at least partially positioned in the primary air cavity, and the injection direction of the outer ring fire nozzle is aligned with the other end of the outer ring fire injection pipe.

6. A cooking appliance as claimed in claim 5, characterized in that,

the fire distributor is provided with a first baffle plate which is positioned above the primary air cavity and is provided with a gap with the base; and the projection of the opening above the primary air cavity on the plane of the first baffle plate does not exceed the boundary of the first baffle plate.

7. The cooking appliance according to claim 6, wherein a second baffle is arranged on the upper surface of the base, the second baffle is arranged around the primary air cavity, a notch is arranged on one side, away from the center of the base, of the second baffle, and the upper end of the second baffle is in contact with the first baffle.

8. A cooking appliance as claimed in claim 5, characterized in that,

the kitchen range further comprises a separation plate which is arranged in the primary air cavity and separates the primary air cavity into an inner ring primary air cavity and an outer ring primary air cavity;

at least part of the inner ring fire nozzle is positioned in the inner ring primary air cavity;

at least part of the outer ring fire nozzle is positioned in the outer ring primary air cavity.

9. A cooking appliance according to claim 1, wherein,

the distributor includes:

an inner ring fire distributor having the inner ring fire distribution chamber;

the outer ring fire distributor is provided with the outer ring fire gas distribution cavity, and the inner ring fire distributor and the outer ring fire distributor are in split design.

10. A cooking appliance as claimed in claim 8, characterized in that,

the axis direction of the inner annular fire injection pipe and the axis direction of the outer annular fire injection pipe form an included angle;

the inner annular fire nozzle comprises a first section and a second section, the extending direction of the first section is the same as that of the outer annular fire nozzle, at least part of the second section is positioned in the inner annular primary air cavity, and the extending direction of the second section is the same as that of the inner annular fire injection pipe in the axial direction; the first section and the second section are in communication.