Air inlet structure of air door of gas stove

Abstract

The invention discloses a gas stove air door air inlet structure which comprises an injection pipe and an air door fixing plate connected with the injection pipe, a second ventilation channel capable of adjusting the ventilation quantity is arranged between the air door fixing plate and the injection pipe, and a first ventilation channel for fixing the ventilation quantity is further arranged between the air door fixing plate and the injection pipe. The first ventilation channel is independent of the second ventilation channel. The first ventilation channel is arranged between the air door fixing plate and the injection pipe, a certain amount of air is kept entering, and then the air inflow of the second ventilation channel is further adjusted, so that the situation that a ventilation opening of the second ventilation channel is too large due to the fact that enough air is needed, and consequently noise is generated is avoided.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of gas stoves, and particularly relates to a gas stove air door air inlet structure. BACKGROUND

[0002] With the development of society and the continuous improvement of people's living standards, the performance and use of gas stoves are increasingly concerned by users, and the performance parameters and cooking effects of some gas stoves on the market cannot meet the needs of users.

[0003] Gas combustion requires air, and the sufficient mixing of air and gas enables the gas to burn fully. The existing gas stove air door adjustment structure generally has two schemes of adjustment distance and adjustment area. The scheme of adjustment area generally adopts an air door structure in which two baffle plates provided with fan-shaped holes are relatively rotated to adjust the air door opening degree, the inlet area is changed by using the air door plate matched with the fan-shaped hole, and the primary air intake is controlled. However, the air intake of the structure is small, and the adjustable range depends on the size of the fan-shaped hole. In the adjustment process, the larger the adjustment range is, the less the air intake can be accurately adjusted.

[0004] Therefore, the present application is proposed. SUMMARY

[0005] The technical problem to be solved by the present application is to overcome the shortcomings of the prior art and provide a gas stove air door air inlet structure. A fixed air volume first air passage is arranged between the air door fixed plate and the ejector pipe, and the air intake of the second air passage is further adjusted to avoid noise caused by the air hole being opened too large due to the need for sufficient air.

[0006] To solve the above technical problems, the basic idea of the technical scheme of the present application is as follows: A gas stove air door air inlet structure comprises an ejector pipe and an air door fixed plate connected thereto, a second air passage with adjustable air volume is arranged between the air door fixed plate and the ejector pipe, a first air passage with fixed air volume is further arranged between the air door fixed plate and the ejector pipe, and the first air passage is independent of the second air passage.

[0007] Further, the end of the ejector pipe abuts against the protruding part arranged at intervals on the air door fixed plate, the gap between the ejector pipe and the air door fixed plate forms the first air passage, and the air inlet direction of the first air passage is substantially perpendicular to and does not intersect with the air inlet direction of the second air passage.

[0008] Further, the protruding part of the air door fixed plate comprises a first annular baffle rib, at least one opening is arranged on the first annular baffle rib, and the first air passage is formed by the opening of the first annular baffle rib and the ejector pipe.

[0009] Further, the first annular barrier rib is the outer peripheral wall of the air inlet of the second ventilation channel, and the open end of the first ventilation channel is the end or the extended end of the outer peripheral wall of the air inlet of the second ventilation channel.

[0010] Further, at least one gas passage hole is arranged on the damper fixing plate, the air inlet of the second ventilation channel is arranged at the outer periphery of the gas passage hole, and the air inlets of the first ventilation channels are arranged at the two ends in the vertical direction of the damper fixing plate.

[0011] Further, the gas passage hole comprises an inner fire gas passage hole and an outer fire gas passage hole respectively communicating with the inner fire ejector pipe and the outer fire ejector pipe, the inner fire gas passage hole and the outer fire gas passage hole are symmetrically arranged on the damper fixing plate in the horizontal direction, the air inlets of the second ventilation channels are symmetrically arranged on the two sides of the gas passage hole in the horizontal direction, and the air inlets of the first ventilation channels are arranged at the two ends in the vertical direction of the damper fixing plate.

[0012] Further, the air inlet amount of the first ventilation channel connected with the inner fire ejector pipe is smaller than the air inlet amount of the first ventilation channel connected with the outer fire ejector pipe.

[0013] Further, the air inlets of the first ventilation channels connected with the inner fire ejector pipe are arranged at the upper and lower ends of the damper fixing plate, the air inlet amount of the upper end air inlet is greater than that of the lower end air inlet, two upper end air inlets are arranged by being spaced apart by the first annular barrier rib, and the gap between the ends of the first annular barrier rib symmetrically arranged on the outer peripheral wall of the second ventilation channel is the lower end air inlet.

[0014] Further, the air inlets of the first ventilation channels connected with the outer fire ejector pipe are arranged at the upper and lower ends of the damper fixing plate, and the ends of the air inlets of the first ventilation channels are the ends of the outer peripheral wall of the second ventilation channel.

[0015] Further, the first ventilation channel air inlet at the upper side of the damper fixing plate is fixedly provided with an anti-backfire plate.

[0016] After the above technical scheme is adopted, the present application has the following beneficial effects compared with the prior art: 1. The first ventilation channel is arranged between the damper fixing plate and the ejector pipe in the present application, so that a certain fixed air inlet amount of primary air is ensured, the air inlet amount of the second ventilation channel is further adjusted, the adjustment range is reduced, and the adjustment range is not excessively large due to the air inlet amount, and noise is generated.

[0017] 2. The air inlets of the plurality of first ventilation channels formed by the openings of the first annular barrier rib and the ejector pipe in communication can control a certain air inlet amount and avoid noise generated in the ventilation process due to the excessively large single air inlet.

[0018] 3、The present application sets the anti-backfire plate on the upper end of the first ventilation channel, avoids the internal backfire from burning the glass panel and causing the panel to break, and prevents the airflow from directly impacting the air inlet of the first ventilation channel, causing excessive air replenishment.

[0019] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0020] The accompanying drawings are part of the present application and serve to provide a further understanding of the present application, the schematic embodiments of the present application and the description thereof serve to explain the present application, but do not constitute an improper limitation on the present application. Obviously, the accompanying drawings in the following description are only some embodiments, and other drawings can be obtained by those skilled in the art without creative labor. In the drawings: Fig. 1 is a schematic view of the furnace head of the present application; Fig. 2 is a schematic view of the fixed damper plate of the present application; Fig. 3 is a sectional view of the furnace head of the present application.

[0021] In the drawings: 1, damper fixing plate; 2, opening; 3, first ventilation port; 4, second ventilation port; 5, inner fire gas through hole; 51, outer fire gas through hole; 6, drainage rib; 7, first annular rib; 8, mounting hole; 9, ejector pipe; 91, inner fire ejector pipe; 92, outer fire ejector pipe.

[0022] It should be noted that these drawings and written descriptions are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments will be clearly and completely described below with reference to the drawings of the embodiments of the present application. The following embodiments are used to illustrate the present application, but not to limit the scope of the present application.

[0024] In the description of the present application, it should be noted that the terms “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “inner”, “outer” and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0025] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0026] As shown in Figs. 1 to 3 The gas stove air inlet structure of the present application comprises an ejector pipe 9, a damper fixing plate 1 fixedly connected with the ejector pipe 9, a second air passage with adjustable air volume provided between the damper fixing plate 1 and the ejector pipe 9, and a first air passage with fixed air volume provided between the damper fixing plate 1 and the ejector pipe 9. The first air passage is arranged to increase the first air inlet volume, and the air inlet volume through the second air passage is adjusted by adjusting the damper blade, thereby avoiding excessive air inlet volume through the second air passage due to adjustment of the damper blade only, which causes large noise.

[0027] Specifically, a second air port 4 is formed in the damper fixing plate 1, the second air port 4 is in communication with the ejector pipe 9 to form a second air passage, the second air port 4 is provided with a damper blade on one side in the axial direction for adjusting the air inlet volume through the second air passage, the damper fixing plate 1 extends in the axial direction and has a first annular blocking rib 7, the first annular blocking rib 7 is provided with a plurality of openings 2, the openings 2 are in communication with the ejector pipe 9 to form a first air passage, and the air inlet of the first air passage is a first air port 3.

[0028] In a further embodiment, the damper fixing plate 1 is symmetrically provided with an inner fire gas passage hole 51 and an outer fire gas passage hole 52, the inner fire gas passage hole 51 is in communication with an inner fire ejector pipe 91, the outer fire gas passage hole 52 is in communication with an outer fire ejector pipe 92, a part of the first air port 3 is in communication with the inner fire gas passage hole 51, and another part of the first air port 3 is in communication with the outer fire gas passage hole 52, a plurality of second air ports 4 with the same size are circumferentially arranged on both sides of the inner fire gas passage hole 51 and the outer fire gas passage hole 52, the damper fixing plate 1 is provided with a damper blade coaxial with the inner fire gas passage hole 51 and rotatable on the outer side of the axis, the outer fire gas passage hole 52 is also coaxially provided with a rotatable damper blade on the outer side of the axis, and the damper blade adjusts the air volume by rotating to block the second air port 4.

[0029] Specifically, the damper fixing plate 1 is in a plate structure, part of which is a closed panel, and part of which is provided with a through hole in communication with the ejector pipe 9. Two mounting holes 8 are provided in the middle part of the damper fixing plate 1 in the vertical direction. The inner fire gas passage 51 and the outer fire gas passage 52 are symmetrically arranged on both sides of the mounting hole 8 in the middle of the damper fixing plate 1. The second air vent 4 is in the form of a fan-shaped hole and is circumferentially distributed at the outer periphery of the gas passage 5. The inner fire gas passage 51 and the outer fire gas passage 52 are respectively rotatably provided with a damper blade on the outer side in the axial direction. The adjustable range can completely block the second air vent 4, so that the air intake amount from the second air vent 4 is zero. Also, the second air vent 4 can be completely opened, so that the air intake amount from the second air vent 4 is maximum.

[0030] In further embodiments, a plurality of blocking ribs extend in the axial direction on the damper fixing plate 1. The blocking ribs further include a drainage blocking rib 6. The drainage blocking rib 6 connects the first annular blocking rib 7 and the inner fire gas passage 5 or the outer fire gas passage 51, respectively. The drainage blocking rib 6 is arranged on both sides of the second air vent 4. The opening 2 and the ejector pipe 9 are in communication to form the first air vent 3.

[0031] Specifically, the first annular blocking rib 7 and the second air vent 4 are coaxially arranged and are arranged on one side of the outer periphery of the second air vent 4. In a preferred embodiment, the first annular blocking rib 7 partially constitutes the outer peripheral wall of the second air vent 4. A second annular blocking rib 71 extends in the axial direction at the gas passage 5. The second annular blocking rib 71 is arranged on one side of the outer periphery of the gas passage 5 and on one side of the inner periphery of the second air vent 4. In a preferred embodiment, the second annular blocking rib 71 constitutes the outer peripheral wall of the gas passage 5 and constitutes the inner peripheral wall of the second air vent 4. The first annular blocking rib 7 and the second annular blocking rib 71 are connected by a plurality of drainage blocking ribs 6. The plurality of drainage blocking ribs 6 are respectively arranged on both sides of the second air vent 4. Preferably, the drainage blocking rib 6 is arranged on the outer side wall of the second air vent 4. A plurality of openings 2 are provided on the first annular blocking rib 7. The openings are arranged at the closed panel of the damper fixing plate 1 and are not in communication with the second air vent 4. After the first annular blocking rib 7 is arranged in close contact with the ejector pipe 9, the openings 2 of the ejector pipe 9 form the first air vent 3. Through the first air vent 3, a certain amount of air is always introduced into the gas stove, reducing the adjustment angle of the primary air intake. This can avoid excessive noise during the mixing process of the primary air intake and the gas due to the excessive adjustment angle of the damper blade, and can effectively reduce the noise.

[0032] In a further embodiment, the air intake of the first ventilation channel connected to the inner fire ejector tube 91 is less than the air intake of the first ventilation channel connected to the outer fire ejector tube 92, the opening 2 of the first annular baffle 7 that is attached to the inner fire ejector tube 91 is less than the opening 2 of the first annular baffle 7 that is attached to the outer fire ejector tube 92, and the damper fixing plate 1 is provided with a fixing hole for fixing the backfire prevention plate at one end near the glass panel.

[0033] Specifically, the first annular baffle 7, which is fitted to the internal fire ejector tube 91, has three openings 2. The openings 2 are respectively located on both sides of the second ventilation opening 4, with two located above the second ventilation opening 4 and one located below the second ventilation opening 4. The two upper openings 2 are spaced apart, with one end of the opening 2 located at the end of the outer peripheral wall of the second ventilation opening 4 and the other end located at the end of the first annular baffle 7 located between the two openings 2. The end of the opening located below the second ventilation opening 4 is the end of the first annular baffle 7 that extends circumferentially along the outer peripheral wall of the second ventilation opening 4, which is symmetrically arranged. The first annular baffle 7, which is attached to the external flame injector 92, has two openings 2. The ends of the two openings 2 are the ends of the outer peripheral walls of the second vent 4, which are symmetrically arranged on the same side. The opening angle of the two openings 2 is 90°. The air damper fixing plate 1 has two fixing holes for fixing the anti-backfire plate at one end near the glass panel. That is, the first annular baffle 7, which is attached to the internal flame injector 91, has a fixing hole at the upper end, and the first annular baffle 7, which is attached to the external flame injector 92, has a fixing hole at the upper end. The fixing holes are fixed on the closed panel of the air damper fixing plate 1. By opening multiple openings 2 on the first annular baffle 7, a certain amount of gas can be introduced into the gas stove, while avoiding noise caused by an excessively large single opening during the gas supply. Furthermore, the anti-backfire plate fixedly installed above the openings 2 prevents backfire inside the burner from burning the glass panel and causing it to break. At the same time, it prevents the airflow inside the stove from impacting the first vent 3 and causing excessive primary air supply.

[0034] In a further embodiment, the second annular baffle 71 and the first annular baffle 7 of the opening 2 of the damper fixing plate 1 are connected to each other by a flow-guiding baffle 6. The first annular baffle 7 is fitted to the ejector tube. An installation hole 8 is provided between the inner fire gas passage hole 5 and the outer fire gas passage hole 51. The ejector tube 9 is fixedly connected to the damper fixing plate 2 by passing a fixing bolt through the installation hole 8.

[0035] In a further embodiment, a backfire prevention plate is provided on one side of the first vent 3. The backfire prevention plate is placed over the notch to prevent backfire inside the burner from burning onto the glass panel and causing the panel to break. At the same time, it prevents the airflow inside the stove from directly impacting the first vent 3, which would cause excessive primary air supply, affect the mixing of gas and air, and lead to incomplete combustion.

[0036] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. The implementation schemes in the above embodiments can also be further combined or replaced. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A gas stove air intake structure, comprising: An ejector tube and a damper fixing plate connected thereto, wherein a second ventilation channel with adjustable ventilation volume is provided between the damper fixing plate and the ejector tube, characterized in that: A first ventilation channel with a fixed ventilation volume is also provided between the damper fixing plate and the ejector tube, and the first ventilation channel is independent of the second ventilation channel.

2. The gas stove air intake structure according to claim 1, characterized in that: The end of the ejector tube abuts against the protruding portion spaced apart on the damper fixing plate. The gap between the ejector tube and the damper fixing plate forms a first ventilation channel. The air intake direction of the first ventilation channel is basically perpendicular to and does not intersect with the air intake direction of the second ventilation channel.

3. The gas stove air intake structure according to claim 2, characterized in that: The protruding portion of the damper fixing plate includes a first annular baffle, the first annular baffle having at least one opening, and the first ventilation channel being formed by the ejector tube and the opening of the first annular baffle.

4. The gas stove air intake structure according to claim 3, characterized in that: The first annular baffle is the outer peripheral wall of the air inlet of the second ventilation channel, and the opening end of the first ventilation channel is the end of the outer peripheral wall of the air inlet of the second ventilation channel or its extended end.

5. A gas stove air intake structure according to any one of claims 2-4, characterized in that: The damper fixing plate is provided with at least one gas passage hole, the air inlet of the second ventilation channel is located on the outer periphery of the gas passage hole, and the air inlet of the first ventilation channel is located at both ends of the damper fixing plate in the vertical direction.

6. The gas stove air intake structure according to claim 5, characterized in that: The gas passage includes an internal fire gas passage and an external fire gas passage that are respectively connected to the internal fire ejector pipe and the external fire ejector pipe. The internal fire gas passage and the external fire gas passage are symmetrically arranged on the damper fixing plate in the horizontal direction. The air inlet of the second ventilation channel is symmetrically arranged on both sides of the gas passage in the horizontal direction. The first ventilation opening is arranged at both ends of the damper fixing plate in the vertical direction.

7. The gas stove air intake structure according to claim 6, characterized in that: The air intake volume of the first ventilation channel connected to the inner fire ejector is less than the air intake volume of the first ventilation channel connected to the outer fire ejector.

8. The gas stove air intake structure according to claim 7, characterized in that: The first ventilation channel connected to the internal fire ejector tube has multiple air inlets, which are distributed at the upper and lower ends of the damper fixing plate. The air volume of the upper air inlet is greater than that of the lower air inlet. There are two upper air inlets, which are spaced apart by the first annular baffle. The lower air inlets are the gap between the ends of the first annular baffles that extend circumferentially along the outer wall of the two second ventilation channels.

9. The gas stove air intake structure according to claim 7, characterized in that: The first ventilation channel connected to the external fire ejector has two air inlets, which are symmetrically distributed at the upper and lower ends of the damper fixing plate. The end of the air inlet of the first ventilation channel is the end of the outer peripheral wall of the second ventilation channel.

10. A gas stove air intake structure according to any one of claims 6-9, characterized in that: A backfire prevention plate is fixedly installed at the air inlet of the first ventilation channel on the upper side of the damper fixing plate.

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