Fire cover, burner and gas cooker containing the same

Abstract

The present invention discloses a fire cover, a burner and a gas cooker including the same. The fire cover includes a accommodating cavity, a plurality of combustion holes and a plurality of blocking members corresponding to the plurality of combustion holes. The blocking members are spaced relative to the combustion holes along the extension direction of the corresponding combustion holes, and the projection along the extension direction of the corresponding combustion holes covers the combustion holes. The edges of the blocking members and the edges of the corresponding combustion holes form a gap for gas to pass through, and the combustion holes are connected to the accommodating cavity through the gap. After the gas enters the interior of the accommodating cavity, it moves rapidly. When passing through the blocking members corresponding to the combustion holes, the flow speed is slowed down, and then it enters the gap and can form a vortex in the gap. The buffering of the vortex makes the gas injection more stable. In addition, the position of the blocking members allows the gas to enter the gap in parallel and form a collision in the gap, so as to better form a vortex, thereby better avoiding the instability of the gas ejected from the combustion holes.

Description

Technical Field

[0001] The present invention relates to the technical field of gas cookers, and in particular to a fire cover, a burner and a gas cooker comprising the same. Background Art

[0002] Gas stoves are commonly used appliances in kitchens. The burner is the combustion part of the gas stove. The size of the flame ejected from the burner is an important factor that determines the user experience.

[0003] The burner is generally provided with a fire cover and a base. The fire cover is placed on the base so that the two together form a closed accommodating chamber. After the gas is ejected from the nozzle, it enters the accommodating chamber through the ejector tube, and then is ejected through the fire hole opened on the fire cover to form a flame to heat the pot. Therefore, the structure of the fire cover affects the injection of gas and the utilization rate of gas.

[0004] Existing fire covers usually set the size of the fire holes to be smaller to avoid the local strength of the fire cover being affected by excessive size. At this time, if the rate at which the gas enters the accommodating cavity is low, the amount of gas ejected from the fire holes will be small, which cannot meet the user's usage needs. However, when the rate at which the gas enters the accommodating cavity is high, the gas will flow faster inside the fire cover, causing the gas ejected from the fire holes to be unstable, which may cause the flame to fluctuate, reducing the user's usage experience. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the defect in the prior art that the gas ejected from the fire hole is unstable when the gas enters the fire cover at a high speed, and to provide a fire cover, a burner and a gas cooker containing the same.

[0006] The present invention solves the above technical problems through the following technical solutions:

[0007] A fire cover comprises a receiving cavity and a plurality of burning fire holes, and is characterized in that:

[0008] The fire cover is further provided with a plurality of blocking members corresponding to the plurality of the combustion holes, the blocking members being spaced relative to the combustion holes along the extension direction of the corresponding combustion holes and covering the combustion holes along the projection of the corresponding combustion holes in the extension direction;

[0009] The edge of the blocking member and the edge corresponding to the combustion fire hole form a gap for the combustion fire hole to pass through, and the combustion fire hole is connected with the accommodating cavity through the gap.

[0010] In this solution, after the gas enters the accommodating cavity, it moves rapidly within the cavity. When it passes through the barrier corresponding to the combustion hole, its flow rate slows down relatively, and it then enters the gap formed by the edge of the barrier and the edge of the corresponding combustion hole. A vortex is formed within the gap, and the vortex acts as a buffer, making the gas ejected from the combustion hole more stable. Furthermore, the barrier is parallel to the combustion hole and covers the combustion hole in the direction in which it extends, allowing the gas to enter the gap in parallel and collide within the gap, further forming a vortex and thus better preventing instability in the gas ejected from the combustion hole.

[0011] Furthermore, the fire cover is also provided with a plurality of connecting parts corresponding to the plurality of the combustion holes, the first end of the connecting part is connected to the edge position corresponding to the combustion hole, and the second end of the connecting part extends toward the interior of the accommodating cavity and is connected to the corresponding blocking part.

[0012] In this solution, through this arrangement, the barrier is connected to the combustion fire hole through a connecting piece. The gas enters the gap formed by the edge of the barrier and the edge of the corresponding combustion fire hole, which can form a vortex to buffer the gas. The buffered gas can be ejected through the edge of the gas fire hole that is not connected to the connecting piece, and the injection direction of the gas can be guided according to actual needs.

[0013] Furthermore, the plurality of combustion holes are arranged in an array on the fire cover along the circumferential direction of the fire cover, and the first ends of the plurality of connecting members are connected to the edge positions of the corresponding combustion holes, and are all located on the same side of the combustion holes along the circumferential direction of the fire cover.

[0014] In this solution, through this arrangement, the buffered gas is ejected in one direction in the circumferential direction of the fire cover. After the gas is ejected from the combustion holes to form flames, it can more conveniently ignite adjacent combustion holes.

[0015] Furthermore, the shape of the combustion fire hole is a rectangle, the long sides of the rectangle are all toward the center of the fire cover, and the first ends of the connecting members are all connected to the long side edges of the corresponding combustion fire holes.

[0016] In this scheme, through this setting, the shape of the combustion fire hole is set to a rectangle, and the long sides of the rectangle are all facing the center of the fire cover, so that the arrangement of multiple combustion fire holes on the fire cover is more neat, and the gas ejected from multiple gas fire holes can form a circular flame. At the same time, it can also avoid the multiple combustion fire holes on the fire cover being uneven, which is not conducive to ignition between the fire holes.

[0017] Furthermore, an annular groove is provided on the surface of the fire cover where the plurality of combustion holes are provided, and the annular groove simultaneously passes through the long sides of the plurality of combustion holes.

[0018] In this solution, through this arrangement, after the gas is ejected through the combustion holes, it can be conducted between adjacent combustion holes using the annular groove as a track, which is more conducive to ignition between adjacent combustion holes.

[0019] Furthermore, the outer shape of the barrier element matches the shape of the combustion fire hole, and the second end of the connecting element is connected to the edge side wall of the barrier element.

[0020] In this solution, through this arrangement, the outer shape of the barrier member matches the shape of the combustion hole, and the second end of the connecting member is connected to the edge side wall of the barrier member, so that the barrier member and the relative connecting member form an L-shaped bracket. The L-shaped bracket is arranged at the combustion hole, and the gas can better achieve impact collision after entering through the opening of the gap, so as to further form a vortex to buffer the gas.

[0021] Furthermore, the connecting piece and the corresponding blocking piece are integrally formed.

[0022] In this solution, the connecting piece and the corresponding blocking piece are integrally formed and connected at the corresponding combustion fire hole, so that the structure is more reliable and the processing and assembly are more convenient.

[0023] A burner, characterized in that the burner comprises:

[0024] A base, wherein an outer ring ejector tube is provided on the base;

[0025] The fire cover as described above cooperates with the base to seal the accommodating cavity of the fire cover, and the first end opening of the outer ring ejector tube communicates with the accommodating cavity;

[0026] A support seat is provided with a gas nozzle, the base is fixed on the support seat, and the second end opening of the outer ring ejector tube is directly opposite to the gas nozzle.

[0027] In this solution, through this setting, after the gas nozzle on the support seat sprays the gas, it enters the outer ring ejector tube set on the base, is discharged from the outer ring ejector tube, enters the accommodating cavity of the fire cover, and is then discharged through the combustion fire hole on the fire cover, making the setting of the entire burner more reasonable. The gas directly enters the accommodating cavity of the fire cover through the outer ring ejector tube, thereby improving the utilization rate of the gas.

[0028] Furthermore, two outer ring ejector tubes are provided on the base, the first end openings of the two outer ring ejector tubes are both located at the edge of the accommodating cavity, and the center of the burner is located on the line connecting the first end openings of the two outer ring ejector tubes.

[0029] In this solution, through this arrangement, the gas enters the accommodating cavity from both ends through the two outer ring ejector tubes, so that the gas can form a collision impact in the accommodating cavity, and can enter the gap from different directions to further form a collision impact, ultimately making the gas ejected from the combustion fire hole more stable.

[0030] A gas cooker is characterized in that it comprises the burner as described above.

[0031] In this solution, by applying the burner as described above to the gas cooker, the defect of unstable gas ejected from the combustion fire hole when the gas enters the fire cover at a high speed can be effectively solved.

[0032] The positive progress effect of the present invention is:

[0033] After entering the containment chamber, the gas moves rapidly within it. When passing through the barrier corresponding to the combustion hole, its flow slows down considerably, and the gas then enters the gap formed by the edge of the barrier and the edge of the corresponding combustion hole. A vortex is formed within the gap, creating a buffering effect that stabilizes the gas ejected from the combustion hole. Furthermore, the barrier is parallel to the combustion hole and covers it in the direction of its extension, allowing the gas to enter the gap parallel to the gas and collide with it within the gap, further forming a vortex and thus preventing instability in the gas ejected from the combustion hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 Schematic diagram of the overall structure of a burner in one embodiment of the present invention.

[0035] Figure 2 Schematic diagram of the structure of a support base in one embodiment of the present invention.

[0036] Figure 3 Schematic diagram of the structure of the base in one embodiment of the present invention (1).

[0037] Figure 4 Schematic diagram of the structure of the base in one embodiment of the present invention (II).

[0038] Figure 5 Schematic diagram of the structure of the fire cover in one embodiment of the present invention.

[0039] Figure 6 Schematic diagram of the cross-sectional structure of a fire cover in one embodiment of the present invention.

[0040] Figure 7 Schematic diagram of the structure of the fire hole cover in one embodiment of the present invention.

[0041] Figure 8 for Figure 7 A partial schematic diagram of point A.

[0042] Figure 9 Schematic diagram of the structure of the fire cover body in one embodiment of the present invention.

[0043] Description of reference numerals:

[0044] Burner 10

[0045] Support seat 100

[0046] Gas nozzle 110

[0047] Base 200

[0048] Outer ring ejector tube 210

[0049] Gas import 211

[0050] Gas outlet 212

[0051] Fire Cover 300

[0052] Accommodating chamber 310

[0053] Burning fire hole 320

[0054] Gap 321

[0055] Barrier 330

[0056] Connector 340

[0057] Annular groove 350

[0058] Fire cover body 360

[0059] Fire hole cover 370 DETAILED DESCRIPTION

[0060] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0061] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "circumferential", "radial", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0062] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0063] like Figure 1 As shown, this embodiment provides a burner 10, which mainly includes three parts, namely a support base 100, a base 200 and a fire cover 300. Figure 2 As shown, the support base 100 can be placed inside a gas cooker. Three gas nozzles 110 are provided on the top surface of the support base 100. Two of the gas nozzles 110 are located at the same peripheral edge of the support base 100, and the other gas nozzle 110 is radially larger on the support base 100. Gas is ejected through these gas nozzles 110 and enters the interior of the base 200. The specific structure of the support base 100 is prior art and will not be described in detail here.

[0064] Combined with Figure 3 and Figure 4 As shown, the base 200 is fixed on the support base 100, and two outer ring ejector tubes 210 are arranged inside the base 200. The two outer ring ejector tubes 210 respectively have a gas inlet 211 and a gas outlet 212, wherein the two gas inlets 211 are both located at the bottom of the base 200 and face the two gas nozzles 110 arranged on the same periphery on the support base 100, and the two gas outlets 212 are both located at the top of the base 200, so that the gas ejected from the gas nozzle 110 can enter the interior of the outer ring ejector tube 210 through the gas inlet 211, and then be discharged from the gas outlet 212 into the interior of the base 200.

[0065] Combine Figure 5 、 Figure 7 and Figure 9As shown, the fire cover 300 is composed of a fire cover body 360 and a fire hole cover 370. The material of the fire hole cover 370 is sheet metal. The fire hole cover 370 is fixed on the top of the fire cover body 360. The fire hole cover 370 is provided with a number of combustion fire holes 320. After the fire cover body 360 and the fire hole cover 370 cooperate to form the fire cover 300, a ring-shaped accommodating cavity 310 is formed inside the fire cover 300. In this embodiment, the fire cover 300 is assembled by the fire cover body 360 and the fire hole cover 370, which is more convenient in processing and assembly. Of course, in other embodiments, the fire cover 300 can also be manufactured in one piece. Figure 6 As shown, after the fire cover 300 is fully assembled, it covers the base 200. The periphery of the fire cover body 360 cooperates with the periphery of the base 200, and the lower sidewall of the fire hole cover 370 abuts against the base 200, so that the base 200 seals the accommodating cavity 310 of the fire cover 300. After entering the interior of the base 200, the gas flows within the sealed accommodating cavity 310 and is discharged through the multiple combustion holes 320 formed in the fire hole cover 370, thereby heating the pot on the fire hole cover 370.

[0066] like Figure 7 and Figure 8 As shown, the fire hole cover 370 is further provided with a plurality of blocking members 330 corresponding to the plurality of combustion holes 320. The blocking members 330 are spaced relative to the combustion holes 320 along the extension direction of the corresponding combustion holes 320, and their projections along the extension direction of the corresponding combustion holes 320 cover the combustion holes 320. The edges of the blocking members 330 and the edges of the corresponding combustion holes 320 form gaps 321 for gas to pass through. The combustion holes 320 communicate with the accommodating cavity 310 through the gaps 321. It should be noted that the extension direction of the combustion holes 320 is the same as the thickness extension direction of the fire hole cover 370.

[0067] With this arrangement, after the gas enters the accommodating chamber 310, it will move rapidly within the accommodating chamber 310. When passing through the barrier 330 corresponding to the combustion hole 320, the flow rate will be relatively slowed down. It then enters the gap 321 formed by the edge of the barrier 330 and the edge of the corresponding combustion hole 320, and a vortex can be formed within the gap 321. The buffering effect of the vortex makes the gas ejected from the combustion hole 320 more stable. In addition, the barrier 330 is parallel to the combustion hole 320 and can cover the combustion hole 320 in the direction in which the combustion hole 320 extends. This allows the gas to enter the gap 321 in parallel and form a collision within the gap 321, better forming a vortex, thereby better preventing the instability of the gas ejected from the combustion hole 320.

[0068] Further, such as Figure 7 and Figure 8As shown, the fire hole cover 370 is also provided with a plurality of connecting members 340 corresponding to the plurality of combustion holes 320. The first ends of the connecting members 340 are connected to the edges of the corresponding combustion holes 320, and the second ends of the connecting members 340 extend into the interior of the accommodating cavity 310 and connect to the corresponding blocking members 330. That is, the blocking members 330 are disposed within the accommodating cavity 310, and each blocking member 330 is connected to the fire hole cover 370 via the connecting member 340. With this arrangement, gas enters the gap 321 formed by the edge of the blocking member 330 and the edge of the corresponding combustion hole 320, which can better form a vortex to buffer the gas. The buffered gas can then be ejected through the edge of the gas hole not connected to the connecting member 340, thereby guiding the gas injection direction according to actual needs. However, in other embodiments, the barrier 330 can also be fixed inside the accommodating cavity 310 by other means. For example, each barrier 330 can be connected and fixed to the fire cover body 360, as long as the edge of the barrier 330 can be surrounded by the edge of the combustion fire hole 320 to form a gap 321 to facilitate the formation of a vortex after the gas enters.

[0069] Further, such as Figure 5 、 Figure 6 and Figure 7 As shown, multiple combustion holes 320 are arranged in an array on the fire hole cover 370 along the circumference of the fire hole cover 370. The first ends of the multiple connecting members 340 are connected to the edges of the corresponding combustion holes 320 and are all located on the same side of the combustion holes 320 along the circumference of the fire hole cover 370. This arrangement allows the buffered gas to be ejected in a single direction along the circumference of the fire hole cover 370. Once the gas is ejected from the combustion holes 320 and forms flames, it can more easily ignite adjacent combustion holes 320. Furthermore, this arrangement allows the multiple combustion holes 320 to be larger in size and spaced further apart without having to worry about the combustion holes 320 being too large and causing reduced strength at the combustion holes 320.

[0070] To ensure more convenient and stable ignition of adjacent combustion holes 320, in this embodiment, the combustion holes 320 are rectangular in shape, with the long sides of the rectangles oriented toward the center of the fire hole cover 370. The first ends of the connectors 340 are connected to the long edge of the corresponding combustion holes 320. This arrangement allows the multiple combustion holes 320 to be more neatly arranged on the fire hole cover 370, allowing gas to be ejected from the multiple gas holes to form a circular flame. This also prevents the multiple combustion holes 320 from being unevenly spaced on the fire hole cover 370, which could hinder ignition between the holes.

[0071] In addition, if Figure 7As shown, an annular groove 350 is also provided on the outer surface of the combustion fire hole 320 provided on the fire hole cover 370. The annular groove 350 simultaneously passes through the long sides of multiple combustion fire holes 320. Through this arrangement, after the gas is ejected through the combustion fire hole 320, it can be conducted between adjacent combustion fire holes 320 with the annular groove 350 as a track, which is more conducive to ignition between adjacent combustion fire holes 320.

[0072] Further, such as Figure 5 、 Figure 7 and Figure 8 As shown, in this embodiment, the outer shape of the barrier 330 and the shape of the combustion hole 320 are both rectangular, so that the barrier 330 can match the corresponding combustion hole 320, and the second end of the connecting member 340 is directly connected to the edge side wall of the barrier 330. Through this arrangement, when the outer shape of the barrier 330 matches the shape of the combustion hole 320, the second end of the connecting member 340 is connected to the edge side wall of the barrier 330, so that the barrier 330 and the corresponding connecting member 340 form an L-shaped bracket. The L-shaped bracket is set at one side edge of the combustion hole 320. After the gas enters through the opening of the gap 321, it can better achieve impact and collision, further forming a vortex to buffer the combustion.

[0073] In addition, the fire hole cover 370 in this embodiment is made of sheet metal. Because sheet metal is relatively thin, during manufacturing, the connector 340 and the corresponding barrier 330 can be integrally formed, or directly formed on the fire hole cover 370 through bending or stamping, etc., so that the connector 340, barrier 330, and fire hole cover 370 are all integrally formed, making the overall structure of the fire hole cover 370 more secure and easier to manufacture and assemble. When the fire hole cover 370 is made of sheet metal, the distance between the combustion holes 320 can be increased to avoid a reduction in the strength of the fire hole cover 370. When the distance between the combustion holes 320 is increased, the above arrangement can also achieve stable injection of gas from the combustion holes 320 and ignition between the combustion holes 320.

[0074] As shown above, the burner 10 in this embodiment includes a support base 100, a base 200 and a fire cover 300, wherein the fire cover 300 is the fire cover 300 described above, and the fire cover 300 can cooperate with the base 200 to close the accommodating cavity 310 of the fire cover 300. The gas inlet 211 of the outer ring ejector tube 210 is arranged toward the gas nozzle 110 of the support base 100, and the gas outlet 212 of the outer ring ejector tube 210 is connected to the accommodating cavity 310. This arrangement makes the structural layout of the entire burner 10 more reasonable, and the gas directly enters the accommodating cavity 310 of the fire cover 300 through the outer ring ejector tube 210, thereby improving the utilization rate of the gas.

[0075] Further, such as Figure 3 and Figure 4 As shown, there are two outer ring ejector tubes 210 on the base 200. The gas outlets 212 of the two outer ring ejector tubes 210 are both located at the edge of the accommodating cavity 310, and the center of the burner 10 is located on the line connecting the two gas outlets 212. This arrangement allows the gas to enter the accommodating cavity 310 through the gas outlets 212 of the two outer ring ejector tubes 210, respectively. This allows the gas to collide with each other within the accommodating cavity 310 and enter the gap 321 from different directions, further creating collisions and impacts. Ultimately, the gas ejected from the combustion fire hole 320 is more stable.

[0076] In addition, this embodiment also discloses a gas cooker including the burner 10 as described above, which can effectively solve the defect that the gas ejected from the combustion fire hole 320 is unstable when the gas enters the fire cover 300 at a high rate.

[0077] Although specific embodiments of the present invention have been described above, those skilled in the art will appreciate that these are merely illustrative and that the scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, and such changes and modifications are intended to fall within the scope of the present invention.

Claims

1. A fire cover comprising a receiving cavity and a plurality of burning fire holes, characterized in that: The fire cover is further provided with a plurality of blocking members corresponding to the plurality of the combustion holes, the blocking members being spaced relative to the combustion holes along the extension direction of the corresponding combustion holes and covering the combustion holes along the projection of the corresponding combustion holes in the extension direction; The edge of the blocking member and the edge corresponding to the combustion fire hole form a gap for the combustion fire hole to pass through, and the combustion fire hole is connected with the accommodating cavity through the gap.

2. The fire cover according to claim 1, wherein: The fire cover is also provided with a plurality of connecting members corresponding to the plurality of combustion holes, wherein the first end of the connecting member is connected to the edge position corresponding to the combustion hole, and the second end of the connecting member extends toward the interior of the accommodating cavity and is connected to the corresponding blocking member.

3. The fire cover according to claim 2, characterized in that The plurality of combustion holes are arranged in an array on the fire cover along the circumferential direction of the fire cover, and the first ends of the plurality of connecting members are connected to the edge positions of the corresponding combustion holes, and are all located on the same side of the combustion holes along the circumferential direction of the fire cover.

4. The fire cover according to claim 3, characterized in that The combustion fire hole is in the shape of a rectangle, the long sides of the rectangle are all toward the center of the fire cover, and the first ends of the connecting members are all connected to the edge positions of the long sides corresponding to the combustion fire holes.

5. The fire cover according to claim 4, characterized in that An annular groove is also provided on the surface of the fire cover where the plurality of combustion holes are arranged, and the annular groove simultaneously passes through the long sides of the plurality of combustion holes.

6. The fire cover according to claim 2, wherein: The outer shape of the barrier element matches the shape of the combustion fire hole, and the second end of the connecting element is connected to the edge side wall of the barrier element.

7. The fire cover according to claim 6, characterized in that The connecting piece and the corresponding blocking piece are integrally formed.

8. A burner, characterized in that: The burner includes: A base, wherein an outer ring ejector tube is provided on the base; The fire cover according to any one of claims 1 to 7, wherein the fire cover and the base cooperate with each other to enclose the accommodating cavity of the fire cover, and the first end opening of the outer ring ejector tube communicates with the accommodating cavity; A support seat is provided with a gas nozzle, the base is fixed on the support seat, and the second end opening of the outer ring ejector tube is directly opposite to the gas nozzle.

9. The burner according to claim 8, characterized in that Two outer ring ejector tubes are provided on the base, the first end openings of the two outer ring ejector tubes are both located at the edge of the accommodating cavity, and the center of the burner is located on the line connecting the first end openings of the two outer ring ejector tubes.

10. A gas cooker, characterized in that: The gas cooker comprises the burner according to any one of claims 8 to 9.

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