CN221098704U

CN221098704U - Air inlet assembly and kitchen range

Info

Publication number: CN221098704U
Application number: CN202322800858.3U
Authority: CN
Inventors: 王孟君; 刘晓明
Original assignee: Zhejiang Supor Kitchen and Bathroom Electrical Appliance Co Ltd
Current assignee: Zhejiang Supor Kitchen and Bathroom Electrical Appliance Co Ltd
Priority date: 2023-10-18
Filing date: 2023-10-18
Publication date: 2024-06-07
Anticipated expiration: 2033-10-18

Abstract

The utility model provides an air inlet assembly and a stove, wherein the air inlet assembly comprises a control valve, an air inlet pipe and a stir-frying nozzle pipe; the control valve is positioned between the air inlet pipe and the quick-frying nozzle pipe to adjust the conduction state of the air inlet pipe and the quick-frying nozzle pipe; the air inlet pipe is provided with a pressure reducing valve, the air inlet pipe is divided into a first pipe section and a second pipe section through the pressure reducing valve, the second pipe section is closer to the pressure reducing valve than the first pipe section, and the pressure reducing valve is switchable between a first state and a second state; when the pressure reducing valve is switched to the first state, the pressure in the second pipe section is smaller than the pressure in the first pipe section; when the pressure reducing valve is switched to the second state, the pressure in the second pipe section is equal to the pressure in the first pipe section. According to the utility model, the quick-frying is realized through the quick-frying nozzle pipe, so that the whole structure of the kitchen range is simple, and the manufacturing cost is low; and the pressure reducing valve is combined, so that the fuel gas flowing out of the quick-frying nozzle pipe can be fully combusted no matter in a rated heat load state or a quick-frying state, and the problem of exceeding of the standard of the smoke emission is avoided.

Description

Air inlet assembly and kitchen range

Technical Field

The utility model relates to the technical field of kitchen ware, in particular to an air inlet assembly and a kitchen range.

Background

The quick-frying is an important cooking mode in Chinese food, in order to realize quick-frying, a quick-frying fire ring is additionally arranged on the basis of an inner fire ring and an outer fire ring on some kitchen ranges, and a quick-frying gas circuit and a quick-frying nozzle are correspondingly arranged, so that the structure of the kitchen range is more complicated, and the required cost is higher; in order to avoid the complex structure of the furnace end, and avoid the increase of cost, the structure of an air inlet assembly is changed, for example, the diameter of a nozzle on the air inlet assembly is increased to meet the stir-frying requirement, but in the mode, under the rated heat load state, the gas sprayed out of a larger nozzle diameter is easy to burn incompletely, so that the problem of exceeding standard of smoke emission is solved.

Disclosure of utility model

In order to at least partially solve the problems existing in the prior art, according to an aspect of the present utility model, an air intake assembly is provided, and the technical scheme is as follows.

An air inlet assembly comprises a control valve, an air inlet pipe and a stir-frying nozzle pipe; the control valve is positioned between the air inlet pipe and the quick-frying nozzle pipe to adjust the conduction state of the air inlet pipe and the quick-frying nozzle pipe; the air inlet pipe is provided with a pressure reducing valve, the air inlet pipe is divided into a first pipe section and a second pipe section through the pressure reducing valve, the second pipe section is closer to the pressure reducing valve than the first pipe section, and the pressure reducing valve is switchable between a first state and a second state; when the pressure reducing valve is switched to the first state, the pressure in the second pipe section is smaller than the pressure in the first pipe section; when the pressure reducing valve is switched to the second state, the pressure in the second pipe section is equal to the pressure in the first pipe section.

According to the air inlet assembly, through the combination of the quick-frying nozzle pipe and the pressure reducing valve, when the pressure reducing valve is switched to a first state, the pressure in the second pipe section is smaller than the pressure in the first pipe section, so that the fuel gas flowing out of the quick-frying nozzle pipe meets the rated heat load for combustion; when the pressure reducing valve is switched to the second state, the pressure in the second pipe section is equal to the pressure in the first pipe section, so that the fuel gas flowing out of the stir-frying nozzle pipe meets the requirement of stir-frying combustion. Thus, the quick-frying is realized through the quick-frying nozzle pipe, so that the whole structure of the kitchen range is simple, and the manufacturing cost is lower; and the pressure reducing valve is combined, so that the fuel gas flowing out of the quick-frying nozzle pipe can be fully combusted no matter in a rated heat load state or a quick-frying state, and the problem of exceeding of the standard of the smoke emission is avoided.

Illustratively, the inner and outer ring stir-fry nozzle pipes are connected to the control valve, respectively; the inner ring quick-frying nozzle pipe is provided with an inner ring quick-frying nozzle which is arranged at one end far away from the control valve; the outer ring stir-frying nozzle pipe is provided with an outer ring stir-frying nozzle which is arranged at one end far away from the control valve. The setting not only can satisfy the inner ring fire stir-fry demand, but also can satisfy the outer ring fire stir-fry demand.

Illustratively, when natural gas is introduced into the air inlet assembly, the aperture of the inner ring quick-frying nozzle is 0.8-1.2 mm, and the aperture of the outer ring quick-frying nozzle is 1.65-1.9 mm. The aperture of the inner ring stir-frying nozzle is, for example, 0.8mm, 1.0mm, 1.2mm and the like, and the aperture of the outer ring stir-frying nozzle is, for example, 1.65mm, 1.85mm, 1.9mm and the like. By the arrangement, when natural gas is introduced into the kitchen range, quick-frying can be realized.

Illustratively, when the liquefied gas is introduced into the air inlet assembly, the aperture of the inner ring quick-frying nozzle is 0.6-0.85 mm, and the aperture of the outer ring quick-frying nozzle is 1.1-1.3 mm. The aperture of the inner ring stir-frying nozzle is, for example, 0.6mm, 0.75mm, 0.85mm and the like, and the aperture of the outer ring stir-frying nozzle is, for example, 1.1mm, 1.25mm, 1.3mm and the like. By the arrangement, the stove can realize quick-frying when liquefied gas is introduced.

Illustratively, the pressure relief valve is configured to have a pressure relief ratio of 0.65 to 0.85 when the air inlet pipe is used to introduce natural gas. By the arrangement, after the natural gas is depressurized through the depressurization valve, the gas pressure meets the use requirement, so that the gas can be fully combusted when the stir-frying nozzle pipe is sprayed out.

Illustratively, the pressure reducing valve is configured to have a pressure reducing ratio of 0.7 to 0.9 when the air intake pipe is used to introduce liquefied gas. By the arrangement, after the liquefied gas is depressurized through the pressure reducing valve, the gas pressure meets the use requirement, so that the gas can be fully combusted when the stir-frying nozzle pipe is sprayed out.

According to another aspect of the utility model there is also provided a hob comprising a burner and an air intake assembly as described above, the burner being connected to the air intake assembly. Because the air inlet assembly has the beneficial effects, the kitchen range comprising the air inlet assembly has the beneficial effects.

The two burners are exemplified, the air inlet pipe comprises a main air inlet pipe and two air inlet pipes, and the two burners are respectively in one-to-one correspondence with the two air inlet pipes. By the arrangement, the cooking efficiency can be improved, a user can cook on the two burners at the same time, and the cooking time is saved.

Illustratively, the pressure relief valve is disposed on the main intake pipe. So set up, only set up a relief pressure valve and can decompress the gas that lets in two combustors, can both fully burn when making the gas let in two combustors, make the simple structure of cooking utensils, and the cost is reduced.

Illustratively, the pressure reducing valve has an outlet with a bore diameter of 2.0mm to 2.4mm when the main inlet pipe is used for introducing natural gas. The aperture of the outlet is for example 2.1mm, 2.2mm, 2.4mm etc. By this arrangement, the natural gas can be depressurized through the depressurization valve, and sufficient combustion can be achieved when the natural gas flows to both burners.

Illustratively, the pressure reducing valve has an outlet with a bore diameter of 1.5mm to 1.8mm when the main inlet pipe is used for introducing liquefied gas. The aperture of the outlet is for example 1.6mm, 1.7mm, 1.8mm etc. By this arrangement, the liquefied gas can be depressurized through the depressurization valve, and sufficient combustion can be obtained when the liquefied gas flows to both of the burners.

Illustratively, at least one of the partial inlet pipes is provided with a pressure relief valve. By the arrangement, the gas exhausted by the burner corresponding to the pressure reducing valve can be accurately reduced, so that the gas can be combusted more fully.

Illustratively, the pressure reducing valve has an outlet with a bore diameter of 1.65mm to 1.9mm when the main inlet pipe is used for introducing natural gas. The aperture of the outlet is, for example, 1.65mm, 1.75mm, 1.9mm, etc., so that the natural gas can be adapted to the stir-frying nozzle pipe after being decompressed by the decompression valve, and the natural gas sprayed from the stir-frying nozzle pipe can be combusted more fully.

Illustratively, the pressure reducing valve has an outlet with a bore diameter of 1.1mm to 1.3mm when the main inlet pipe is used for introducing liquefied gas. The aperture of the outlet is, for example, 1.1mm, 1.25mm, 1.3mm, etc., so that the liquefied gas can be adapted to the stir-frying nozzle pipe after being decompressed by the decompression valve, and the liquefied gas sprayed from the stir-frying nozzle pipe can be combusted more fully.

In the summary, a series of concepts in a simplified form are introduced, which will be further described in detail in the detailed description section. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

Advantages and features of the utility model are described in detail below with reference to the accompanying drawings.

Drawings

The following drawings are included to provide an understanding of the utility model and are incorporated in and constitute a part of this specification. Embodiments of the present utility model and their description are shown in the drawings to explain the principles of the utility model. In the drawings of which there are shown,

FIG. 1 is a perspective view of a cooktop of an exemplary embodiment of the present utility model;

FIG. 2 is a top view of the cooktop of FIG. 1;

FIG. 3 is a bottom view of the cooktop of FIG. 1;

fig. 4 is a partial cutaway view of the cooktop of fig. 2.

Wherein the above figures include the following reference numerals:

1. A stove; 10. an air intake assembly; 110. a control valve; 120. an air inlet pipe; 1210. a pressure reducing valve; 1220. a first pipe section; 1230. a second pipe section; 1240. a main air inlet pipe; 1250. a branched air inlet pipe; 130. a stir-frying nozzle pipe; 1310. an inner ring stir-frying nozzle pipe; 1311. an inner ring stir-frying nozzle; 1320. an outer ring quick-frying nozzle pipe; 1321. an outer ring quick-frying nozzle; 1322. a wind hole; 20. a burner.

Detailed Description

In the following description, numerous details are provided to provide a thorough understanding of the utility model. However, it will be understood by those skilled in the art that the following description illustrates preferred embodiments of the utility model by way of example only and that the utility model may be practiced without one or more of these details. Furthermore, some technical features that are known in the art have not been described in detail in order to avoid obscuring the utility model.

In the following description, a detailed structure will be presented for a thorough understanding of embodiments of the present utility model. It will be apparent that embodiments of the utility model may be practiced without limitation to the specific details that are set forth by those skilled in the art. Preferred embodiments of the present utility model are described in detail below, however, the present utility model may have other embodiments in addition to these detailed descriptions.

Embodiments of the present utility model provide an air intake assembly. The air intake assembly may be used in a variety of types of devices, including, but not limited to, cooktops and other devices. An air intake assembly according to an embodiment of the present utility model will be described in detail with reference to the accompanying drawings.

Referring to fig. 1-3 in combination, an intake assembly 10 of one embodiment of the present utility model may include a control valve 110, an intake pipe 120, and a pop-tip nozzle pipe 130. Control valve 110 may be located between intake pipe 120 and pop-tip nozzle pipe 130 to adjust the conduction state of intake pipe 120 and pop-tip nozzle pipe 130. The air intake pipe 120 may be provided with a pressure reducing valve 1210, and the air intake pipe 120 may be divided into a first pipe section 1220 and a second pipe section 1230 by the pressure reducing valve 1210, the second pipe section 1230 being closer to the pressure reducing valve 1210 than the first pipe section 1220, the pressure reducing valve 1210 being switchable between a first state and a second state. Wherein, when the relief valve 1210 is switched to the first state, the pressure in the second pipe segment 1230 may be less than the pressure in the first pipe segment 1220. When the relief valve 1210 switches to the second state, the pressure within the second tube segment 1230 may be equal to the pressure within the first tube segment 1220. It should be appreciated that the pop-up nozzle tube 130 has a nozzle opening that is larger than the nozzle opening of a conventional nozzle tube so that the gas ejected from the nozzle opening can meet the pop-up combustion demand.

In the air inlet assembly 10, through the combination of the stir-frying nozzle pipe 130 and the pressure reducing valve 1210, when the pressure reducing valve 1210 is switched to the first state, the pressure in the second pipe section 1230 is smaller than the pressure in the first pipe section 1220, so that the fuel gas flowing out of the stir-frying nozzle pipe 130 (specifically, the nozzle opening of the stir-frying nozzle pipe 130) meets the rated heat load combustion; when the pressure reducing valve 1210 is switched to the second state, the pressure in the second pipe section 1230 is equal to the pressure in the first pipe section 1220, so that the gas flowing out of the stir-frying nozzle pipe 130 (specifically, from the nozzle opening of the stir-frying nozzle pipe 130) satisfies the stir-frying combustion. Thus, the quick-frying is realized through the quick-frying nozzle pipe 130, so that the whole structure of the kitchen range 1 is simple, and the manufacturing cost is low; and the pressure reducing valve 1210 is combined, so that the gas flowing out of the stir-frying nozzle pipe 130 can be fully combusted no matter in a rated heat load state or in a stir-frying state, and the problem of exceeding of the standard of the smoke emission is avoided.

Specifically, when the stove 1 is provided with the stir-frying nozzle pipe 130, the nozzle opening of the stir-frying nozzle pipe 130 is larger than that of the conventional nozzle pipe, so that the gas flow flowing out of the nozzle opening of the stir-frying nozzle pipe 130 is larger. When the pressure reducing valve 1210 is switched to the first state, the gas flows from the first pipe section 1220 to the second pipe section 1230 after being reduced in pressure by the pressure reducing valve 1210, and the aperture of the inlet of the pressure reducing valve 1210 is larger than the aperture of the outlet of the pressure reducing valve 1210, so that the flow rate and the gas pressure of the gas are reduced after the gas passes through the pressure reducing valve 1210, and the gas flowing out from the nozzle opening of the stir-frying nozzle pipe 130 can be fully combusted in the rated heat load combustion state. When the pressure reducing valve 1210 is switched to the second state, the pressure reducing valve 1210 is not activated, the fuel gas directly flows from the first pipe section 1220 to the second pipe section 1230, and the gas flow and the pressure are not changed, that is, the pressure in the second pipe section 1230 is equal to the pressure in the first pipe section 1220, so that the fuel gas flowing out from the nozzle opening of the stir-frying nozzle pipe 130 is fully combusted in the stir-frying state, thereby meeting the stir-frying requirement.

In one embodiment of the present utility model, referring to fig. 2-4 in combination, the pop nozzle tube 130 may have an inner ring pop nozzle tube 1310 and an outer ring pop nozzle tube 1320, and the inner ring pop nozzle tube 1310 and the outer ring pop nozzle tube 1320 may be connected to the control valve 110, respectively. Inner ring stir-fry nozzle tube 1310 has an inner ring stir-fry nozzle 1311, inner ring stir-fry nozzle 1311 being disposed at an end remote from control valve 110; the outer ring quick-fry nozzle tube 1320 has an outer ring quick-fry nozzle 1321, the outer ring quick-fry nozzle 1321 being disposed at an end remote from the control valve 110. The setting not only can satisfy the inner ring fire stir-fry demand, but also can satisfy the outer ring fire stir-fry demand. In order that the fuel gas in both the inner ring and outer ring stir-fry nozzle pipes 1310, 1320 can be fully combusted, the distance between the inner ring stir-fry nozzle 1311 and the control valve 110 is longer than the distance between the outer ring stir-fry nozzle 1321 and the control valve 110, and certainly, the situation that the distance between the inner ring stir-fry nozzle 1311 and the control valve 110 is shorter than the distance between the outer ring stir-fry nozzle 1321 and the control valve 110 is not excluded. Wherein, the outer ring stir-frying nozzle pipe 1320 may have a wind hole 1322, and the gas mixes with the air entering at the wind hole 1322 when being ejected at the outer ring stir-frying nozzle pipe 1320, so that the gas can be fully combusted.

In one embodiment of the present utility model, referring to fig. 1 and 4, the cross-sectional areas of the inner ring of pop nozzles 1311 and the outer ring of pop nozzles 1321 may be circular in shape. When natural gas is introduced into the air inlet assembly 10, the aperture of the inner ring stir-frying nozzle 1311 can be 0.8-1.2 mm, and the aperture of the outer ring stir-frying nozzle 1321 can be 1.65-1.9 mm. When the aperture of the inner ring stir-frying nozzle 1311 is 0.9mm, the inner ring stir-frying effect is optimal. The aperture of the inner ring stir-frying nozzle 1311 may also be, for example, 0.8mm, 1.0mm, 1.2mm, or the like. When the aperture of the outer ring stir-frying nozzle 1321 is 1.75mm, the outer ring stir-frying effect is optimal. The aperture of the outer ring of pop-up nozzles 1321 may also be, for example, 1.65mm, 1.85mm, 1.9mm, etc. By the arrangement, when natural gas is introduced into the kitchen range 1, quick-frying can be realized. Of course, the cross-sectional areas of inner ring stir-fry nozzle 1311 and outer ring stir-fry nozzle 1321 may have other shapes, such as rectangular, triangular, and the like.

In one embodiment of the present utility model, referring again to fig. 1 and 4, the cross-sectional areas of inner ring flash nozzle 1311 and outer ring flash nozzle 1321 may be circular in shape. When the liquefied gas is introduced into the air inlet assembly 10, the aperture of the inner ring stir-frying nozzle 1311 can be 0.6 mm-0.85 mm, and the aperture of the outer ring stir-frying nozzle 1321 can be 1.1 mm-1.3 mm. When the aperture of the inner ring stir-frying nozzle 1311 is 0.7mm, the inner ring stir-frying effect is optimal. The aperture of inner ring flash nozzle 1311 may be, for example, 0.6mm, 0.75mm, 0.85mm, etc. When the aperture of the outer ring stir-frying nozzle 1321 is 1.2mm, the outer ring stir-frying effect is optimal. The aperture of the outer ring of pop-up nozzles 1321 may be, for example, 1.1mm, 1.25mm, 1.3mm, etc. By the arrangement, the stove 1 can realize quick-frying when liquefied gas is introduced. Of course, the cross-sectional areas of inner ring stir-fry nozzle 1311 and outer ring stir-fry nozzle 1321 may have other shapes, such as rectangular, triangular, and the like.

In one embodiment of the present utility model, referring to FIG. 2, when the air intake pipe 120 is used for introducing natural gas, the pressure reducing valve 1210 is configured to have a pressure reducing ratio of 0.65-0.85. For example, the natural gas has a rated gas pressure of 2Kpa, and the natural gas is depressurized by the depressurization valve 1210 to a gas pressure of 1.3Kpa to 1.7Kpa. When the pressure of the natural gas after depressurization is 1.5Kpa, the effect of sufficiently burning the natural gas can be optimized, and the gas pressure of the natural gas after depressurization can be, for example, 1.3Kpa, 1.4Kpa, 1.7Kpa, or the like. By this arrangement, the natural gas can be depressurized by the depressurization valve 1210, and the gas pressure can meet the use requirement, so that the gas can be fully combusted when the stir-frying nozzle pipe 130 is ejected.

In one embodiment of the present utility model, referring again to fig. 2, when the intake pipe 120 is used to introduce liquefied gas, the pressure reducing valve 1210 is configured to have a pressure reducing ratio of 0.7 to 0.9. For example, the rated gas pressure of the liquefied gas is 2.8Kpa, and the gas pressure of the liquefied gas may be reduced to 2.0Kpa to 2.5Kpa after the liquefied gas is reduced by the pressure reducing valve 1210. When the pressure of the liquefied gas after depressurization is 2.3Kpa, the effect of sufficiently burning the liquefied gas can be optimized, and the gas pressure of the liquefied gas after depressurization can be, for example, 2.0Kpa, 2.1Kpa, 2.5Kpa, or the like. By this arrangement, after the liquefied gas is depressurized by the depressurization valve 1210, the gas pressure satisfies the use requirement, so that the gas can be fully combusted when the stir-frying nozzle pipe 130 is ejected.

According to another aspect of the present utility model, referring to fig. 1, there is also provided a cooking appliance 1, which cooking appliance 1 may comprise a burner 20 and an air intake assembly 10 as described above, the burner 20 being connected to the air intake assembly 10. Since the air intake assembly has the above-described advantageous effects, the cooking appliance 1 including the air intake assembly 10 necessarily has the above-described advantageous effects.

In one embodiment of the present utility model, referring to fig. 2, the number of the burners 20 may be two, the intake pipe 120 may include a main intake pipe 1240 and two sub-intake pipes 1250, and the two burners 20 may be in one-to-one correspondence with the two sub-intake pipes 1250, respectively. By this arrangement, the cooking efficiency can be improved, and the user can cook on both burners 20 at the same time, thereby saving cooking time. The number of the burners 20 may be one or more, and there is a one-to-one correspondence of the divided inlet pipes 1250 regardless of the number of the burners 20.

In one embodiment of the present utility model, referring again to FIG. 2, a pressure relief valve 1210 is provided on the main intake pipe 1240. By the arrangement, only one pressure reducing valve 1210 is arranged, so that the gas flowing into the two burners 20 can be reduced in pressure, and the gas can be fully combusted when flowing into the two burners 20, so that the stove 1 is simple in structure and low in cost.

Specifically, when the user opens the pressure reducing valve 1210, both burners 20 can realize quick-frying at the same time, and when the user closes the pressure reducing valve 1210, the fuel gas introduced into both burners 20 can be fully combusted.

In one embodiment of the present utility model, referring again to fig. 2, the pressure reducing valve 1210 may have an outlet (outlet not shown), which may be circular, and the aperture of the outlet may be 2.0mm to 2.4mm when the main inlet pipe 1240 is used to introduce natural gas. The effect of depressurizing the natural gas is optimal when the aperture of the outlet is 2.0 mm. The aperture of the outlet may be, for example, 2.1mm, 2.2mm, 2.4mm, etc. So configured, the natural gas may be depressurized through the depressurization valve 1210 and fully combusted as it flows to both burners 20. Wherein the outlet may be of other shapes as well.

In one embodiment of the present utility model, referring again to fig. 2, the pressure reducing valve 1210 may have an outlet, which may be circular, and the aperture of the outlet may be 1.5mm to 1.8mm when the main intake pipe 1240 is used to introduce liquefied gas. The effect of depressurizing the liquefied gas is optimal when the aperture of the outlet is 1.5 mm. The aperture of the outlet may be, for example, 1.6mm, 1.7mm, 1.8mm, etc. So configured, the liquefied gas may be depressurized through the depressurization valve 1210, and may be fully combusted as the liquefied gas flows to both of the burners 20. Wherein the outlet may be of other shapes as well.

In one embodiment of the present utility model, referring to fig. 2 and 3 in combination, at least one of the partial inlet pipes 1250 is provided with a pressure reducing valve 1210. By doing so, the gas discharged from the burner 20 corresponding to the pressure reducing valve 1210 can be more precisely reduced in pressure, so that the gas combustion is more sufficient.

Specifically, a pressure reducing valve 1210 may be provided on one of the branch air inlet pipes 1250, when the pressure reducing valve 1210 is opened by a user, the burner 20 corresponding to the pressure reducing valve 1210 may perform quick-frying, and when the pressure reducing valve 1210 is closed by the user, the fuel gas introduced into the burner 20 through the pressure reducing valve 1210 may be fully combusted, or one pressure reducing valve 1210 may be provided on each of the branch air inlet pipes 1250.

When the pressure reducing valve 1210 is disposed on the gas dividing and feeding pipe 1250, the pressure reducing valve 1210 may also have an outlet, the outlet may be circular, and the aperture of the outlet is 1.65 mm-1.9 mm when the main gas feeding pipe 1240 is used for feeding natural gas. The effect of depressurizing the natural gas is optimal when the aperture of the outlet is 1.8 mm. The aperture of the outlet may be, for example, 1.65mm, 1.75mm, 1.9mm, etc., so that natural gas can be adapted to the stir-frying nozzle pipe 130 after being depressurized by the depressurization valve 1210, and thus the natural gas sprayed from the stir-frying nozzle pipe 130 can be combusted more sufficiently. Wherein the outlet may be of other shapes as well.

When the pressure reducing valve 1210 is provided on the gas dividing pipe 1250, the pressure reducing valve 1210 may also have an outlet, the outlet may be circular, and the aperture of the outlet is 1.1mm to 1.3mm when the main gas inlet pipe 1240 is used for introducing liquefied gas. The effect of depressurizing the liquefied gas is optimal when the aperture of the outlet is 1.2 mm. The aperture of the outlet may be, for example, 1.1mm, 1.25mm, 1.3mm, etc., so that the liquefied gas is depressurized by the pressure-reducing valve 1210 and then is adapted to the stir-frying nozzle pipe 130, so that the liquefied gas ejected from the stir-frying nozzle pipe 130 can be combusted more sufficiently. Wherein the outlet may be of other shapes as well.

In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front", "rear", "upper", "lower", "left", "right", "transverse", "vertical", "horizontal", and "top", "bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely for convenience of describing the present utility model and simplifying the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, without limiting the scope of protection of the present utility model; the orientation terms "inner" and "outer" refer to the inner and outer relative to the outline of the components themselves.

For ease of description, regional relative terms, such as "over … …," "over … …," "on the upper surface of … …," "over," and the like, may be used herein to describe regional positional relationships of one or more components or features to other components or features shown in the figures. It will be understood that the relative terms of regions include not only the orientation of the components illustrated in the figures, but also different orientations in use or operation. For example, if the element in the figures is turned over entirely, elements "over" or "on" other elements or features would then be included in cases where the element is "under" or "beneath" the other elements or features. Thus, the exemplary term "above … …" may include both orientations "above … …" and "below … …". Moreover, these components or features may also be positioned at other different angles (e.g., rotated 90 degrees or other angles), and all such cases are intended to be encompassed herein.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, components, assemblies, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the application described herein may be implemented in sequences other than those illustrated or otherwise described herein.

The present utility model has been illustrated by the above-described embodiments, but it should be understood that the above-described embodiments are for purposes of illustration and description only and are not intended to limit the utility model to the embodiments described. In addition, it will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that many variations and modifications are possible in light of the teachings of the utility model, which variations and modifications are within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. An air inlet assembly is characterized by comprising a control valve, an air inlet pipe and a stir-frying nozzle pipe;

The control valve is positioned between the air inlet pipe and the quick-frying nozzle pipe so as to adjust the conduction state of the air inlet pipe and the quick-frying nozzle pipe;

The air inlet pipe is provided with a pressure reducing valve, the air inlet pipe is divided into a first pipe section and a second pipe section through the pressure reducing valve, the second pipe section is closer to the pressure reducing valve than the first pipe section, and the pressure reducing valve is switchable between a first state and a second state;

When the pressure reducing valve is switched to the first state, the pressure in the second pipe section is smaller than the pressure in the first pipe section; when the pressure reducing valve is switched to the second state, the pressure in the second pipe section is equal to the pressure in the first pipe section.

2. The air intake assembly of claim 1, wherein the pop nozzle tube has an inner ring pop nozzle tube and an outer ring pop nozzle tube, the inner ring pop nozzle tube and the outer ring pop nozzle tube being connected to the control valve, respectively;

The inner ring stir-frying nozzle pipe is provided with an inner ring stir-frying nozzle, and the inner ring stir-frying nozzle is arranged at one end far away from the control valve;

the outer ring stir-frying nozzle pipe is provided with an outer ring stir-frying nozzle, and the outer ring stir-frying nozzle is arranged at one end far away from the control valve.

3. The air inlet assembly according to claim 2, wherein the aperture of the inner ring stir-frying nozzle is 0.8-1.2 mm and the aperture of the outer ring stir-frying nozzle is 1.65-1.9 mm when the air inlet pipe is used for introducing natural gas.

4. The air inlet assembly according to claim 2, wherein the air inlet pipe is used for introducing liquefied gas, the aperture of the inner ring stir-frying nozzle is 0.6 mm-0.85 mm, and the aperture of the outer ring stir-frying nozzle is 1.1 mm-1.3 mm.

5. The air intake assembly of claim 1, wherein the pressure relief valve is configured to have a pressure relief ratio of 0.65-0.85 when the air intake pipe is used to intake natural gas.

6. The intake assembly of claim 1, wherein the pressure relief valve is configured to have a pressure relief ratio of 0.7 to 0.9 when the intake pipe is used to introduce liquefied gas.

7. A cooktop comprising a burner and an air intake assembly according to any of claims 1-6, the burner being connected to the air intake assembly.

8. The cooking appliance according to claim 7, wherein the number of the burners is two, the air inlet pipe comprises a main air inlet pipe and two branch air inlet pipes, and the two burners are respectively in one-to-one correspondence with the two branch air inlet pipes.

9. The cooktop of claim 8, wherein the pressure relief valve is disposed on the main air inlet pipe.

10. The cooking appliance according to claim 9, wherein the pressure reducing valve is provided with an outlet, and the aperture of the outlet is 2.0 mm-2.4 mm when the main air inlet pipe is used for introducing natural gas.

11. The cooking appliance according to claim 9, wherein the pressure reducing valve is provided with an outlet, and the aperture of the outlet is 1.5 mm-1.8 mm when the main air inlet pipe is used for introducing liquefied gas.

12. The cooktop of claim 8, wherein the pressure relief valve is provided on at least one of the partial inlets.

13. The cooking appliance according to claim 12, wherein the pressure reducing valve has an outlet, and the aperture of the outlet is 1.65 mm-1.9 mm when the main air inlet pipe is used for introducing natural gas.

14. The cooking appliance according to claim 12, wherein the pressure reducing valve has an outlet, and the aperture of the outlet is 1.1mm to 1.3mm when the main air inlet pipe is used for introducing liquefied gas.