Stove

Abstract

The utility model discloses a kitchen range. The kitchen range comprises a burner and a pot rack, a plurality of first fire outlet holes are formed in the top of the combustor; the pot rack comprises a pot rack main body and a plurality of supporting legs, the pot rack main body is arranged around the periphery of the burner, the supporting legs are arranged at the bottom of the pot rack, and the supporting legs are arranged around the peripheral side of the pot rack main body at intervals; the inner circumferential side face of the pot rack body comprises a flow guide air inlet face, the flow guide air inlet face extends upwards from the bottom of the pot rack body, the flow guide air inlet face and the burner are arranged in a spaced mode, and a first air inlet channel communicated with the first fire outlet holes is formed between the flow guide air inlet face and the outer circumferential side face of the burner. An air inlet channel does not need to be formed in the pot rack body, so that the sealing integrity of the pot rack body can be guaranteed, and the heat preservation performance of the pot rack body can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of kitchenware, and in particular to a stove. Background Art

[0002] A stove is a common kitchen appliance used in everyday household life. It typically consists of a pot rack and a burner. The pot rack surrounds the burner, supporting the pot, while the burner heats the pot. When the burner is operating, primary air mixed with gas is ejected from the burner's flame holes. This is ignited by an ignition device, creating a flame with the help of secondary air, which heats the pot placed on the pot rack.

[0003] However, in the related art, an air intake channel is usually provided on the pot rack to provide secondary air for the fire hole. The first air intake channel will destroy the sealing integrity of the pot rack and reduce the heat preservation performance of the pot rack. Utility Model Content

[0004] The present application provides a stove that does not require an air intake channel to be provided on the pot rack body, thereby ensuring the sealing integrity of the pot rack body and improving the heat preservation performance of the pot rack body.

[0005] Specifically, a stove comprises: a burner, wherein a plurality of first fire holes are provided on the top of the burner; and a pot stand, comprising a pot stand body and a plurality of supporting legs, wherein the pot stand body is arranged around the outer periphery of the burner, and the supporting legs are arranged at the bottom of the pot stand, and the plurality of supporting legs are arranged at intervals around the circumference of the pot stand body; wherein the inner peripheral side surface of the pot stand body comprises an air guide surface, wherein the air guide surface extends upward from the bottom of the pot stand body and is spaced apart from the burner, and a first air intake channel connected to the first fire holes is formed between the air guide surface and the outer peripheral side surface of the burner.

[0006] In some embodiments of the present application, a fire-prone protrusion is provided on the inner circumferential side of the pot support body. The fire-prone protrusion is located above the burner and spaced apart from the burner. A guide channel is formed between the bottom surface of the fire-prone protrusion and the top surface of the burner. The guide channel connects the first air inlet channel and the first fire outlet. The guide channel can more accurately guide the secondary air space to the first fire outlet, thereby replenishing sufficient secondary air for the flame burning at the first fire outlet, ensuring more complete combustion of the gas, and further improving the thermal efficiency of the burner.

[0007] In some embodiments of the present application, the angle α formed between the bottom surface of the protruding portion near the fire and the air guide surface is 90 degrees ≤ α ≤ 160 degrees. This ensures air supply efficiency at the first fire outlet while preventing the air guide surface from expanding excessively toward the outside of the pot rack body, thereby reducing the volume of the heat-insulating cavity within the pot rack body.

[0008] In some embodiments of the present application, a curved transition surface is provided at the junction of the bottom surface of the protruding portion near the fire and the air inlet guide surface. The bottom surface of the protruding portion near the fire is connected to the air inlet guide surface via the curved transition surface, thereby making the secondary air flow along the air inlet guide surface to the bottom surface of the protruding portion near the fire smoother.

[0009] In some embodiments of the present application, the first fire outlet is located on a side of the fire protrusion away from the pot support body, and the projection of the fire protrusion on the burner is connected to or spaced apart from the first fire outlet. This allows the fire protrusion to avoid the first fire outlet and not be directly above or block the first fire outlet, thereby preventing the flame ejected from the first fire outlet from being blocked by the fire protrusion and also preventing the fire protrusion from being burned by the flame.

[0010] In some embodiments of the present application, the radial distance between the first fire hole and the fire protrusion along the pot support body is d1, where 0≤d1≤10 mm. This prevents the distance between the fire protrusion and the first fire hole from being too large, which may result in the diversion channel being unable to accurately replenish the secondary space to the first fire hole.

[0011] In some embodiments of the present application, a vertical distance between the top surface of the burner and the bottom surface of the protrusion near the fire is d2, 0<d2≤10 mm, to prevent the top surface of the burner and the bottom surface of the protrusion near the fire from being too large, thereby preventing the combustion temperature of the flame from being reduced.

[0012] In some embodiments of the present application, the burner includes an inner ring fire cover; and an outer ring fire cover disposed around and spaced apart from the inner ring fire cover, with a second air inlet passage formed between the outer ring fire cover and communicating with the first fire hole, the first fire hole being disposed at the top of the outer ring fire cover. The first fire hole is supplied with secondary air through the first and second air inlet passages, further ensuring sufficient combustion of the gas at the first fire hole.

[0013] In some embodiments of the present application, the pot support body includes an upper plate and a lower plate located below the upper plate. The lower plate is connected to the upper plate and forms an insulating cavity with the upper plate. The insulating cavity can provide insulation and prevent heat from dissipating from the combustion space, thereby reducing heat loss in the burner and further improving the thermal efficiency of the burner.

[0014] In some embodiments of the present application, the heat-insulating cavity is a closed, sealed cavity. Since there is no need to provide an air inlet channel on the pot support body, the sealing integrity of the pot support body can be ensured, thereby making the heat-insulating cavity a closed, sealed cavity, further enhancing the heat-insulating function of the heat-insulating cavity and further reducing heat loss from the burner.

[0015] The beneficial effects of the present application are as follows: when the burner is burning, a mixed gas containing gas and primary air is ejected from the first fire outlet and ignited by the ignition device, and the oxygen in the combustion space is consumed to generate negative pressure, so that the air outside the pot rack body can be sucked into the first air inlet channel from the bottom of the pot rack body, and accurately flows to the first fire outlet through the first air inlet channel, thereby replenishing secondary air for the flame burning at the first fire outlet, making the gas burn more completely, thereby improving the thermal efficiency of the burner; in addition, the first air inlet channel is formed on the outside of the pot rack body, so that there is no need to open an additional air inlet channel on the pot rack body, thereby ensuring the sealing integrity of the pot rack body, improving the thermal insulation performance of the pot rack body, and further improving the heat exchange efficiency and the thermal efficiency of the burner. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the following briefly introduces the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without any creative work.

[0017] Figure 1 This is a schematic structural diagram of a stove in one embodiment of the present application from a first viewing angle;

[0018] Figure 2 This is a schematic structural diagram of a stove in an embodiment of the present application from a second viewing angle;

[0019] Figure 3 This is a partial structural diagram of a stove in one embodiment of the present application;

[0020] Figure 4 for Figure 3 A magnified schematic diagram of point A in the middle;

[0021] Figure 5 This is a schematic diagram of the exploded components of a stove in one embodiment of the present application.

[0022] Reference numerals:

[0023] 10. Burner; 11. Inner ring fire cover; 111. Second fire outlet; 12. Outer ring fire cover; 121. First fire outlet; 13. Second air inlet channel; 20. Pot stand; 21. Pot stand body; 211. Air guide surface; 22. Support legs; 23. Fire convex portion; 24. Upper plate; 25. Lower plate; 26. Middle partition; 27. Insulation cavity; 28. Arc-shaped transition surface; 31. First air inlet channel; 32. Air guide channel; 40. Support plate. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of this application more clearly understood, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0025] The present application provides a stove to solve the problem in the related art that an air intake channel for providing secondary air to the fire hole is usually set on the pot rack, and the first air intake channel will destroy the sealing integrity of the pot rack and reduce the heat preservation performance of the pot rack.

[0026] Specifically, if Figure 1 and Figure 2 As shown, the stove includes a burner 10 and a pot rack 20. A plurality of first fire holes 121 are provided on the top of the burner 10. The pot rack 20 includes a pot rack body 21 and a plurality of supporting legs 22. The pot rack body 21 is arranged around the periphery of the burner 10, and the supporting legs 22 are arranged at the bottom of the pot rack 20. The plurality of supporting legs 22 are arranged at intervals around the periphery of the pot rack body 21.

[0027] It is understood that the plurality of first ignition holes 121 can be spaced apart along the circumference of the burner 10. A gas passageway communicating with the first ignition holes 121 is formed within the burner 10. Combustible gas is ejected from the first ignition holes 121 of the burner 10 and ignited by an ignition device to produce a flame. The pot support body 21 is an annular structure with a central through hole at its center. The pot support body 21 can be circular, but can also be square or other shapes depending on actual needs. The central through hole can also be circular, square, or other shaped. When the pot stand 20 is in use, the supporting legs 22 of the pot stand 20 are in contact with a placement surface such as a tabletop, and separate the pot stand body 21 from the placement surface. The burner 10 is placed at the central through hole of the pot stand body 21, and the pot stand body 21 is arranged around the outer periphery of the burner 10. The pot is placed on the pot support legs of the pot stand 20. The burner 10, the pot stand 20 and the pot form a combustion space. The flame generated by the burner 10 passes through the central through hole to heat the pot. The annular pot stand body 21 can isolate the flame generated by the burner 10 from the external environment, reducing the impact of the external low-temperature airflow on the flame and the loss of combustion heat. At the same time, it can allow the high-temperature flue gas to stay in the combustion space for a longer time, so that the high-temperature flue gas has enough time to fully exchange heat with the bottom surface of the pot, thereby improving the heat exchange efficiency and the overall thermal efficiency of the burner 10.

[0028] More specifically, if Figure 3 and Figure 4As shown, in the present application, the inner circumferential side surface of the pot support body 21 includes an air inlet guide surface 211. The air inlet guide surface 211 extends upward from the bottom of the pot support body 21 and is spaced apart from the burner 10. A first air inlet passage 31, which is connected to the first fire hole 121, is formed between the air inlet guide surface 211 and the outer circumferential side surface of the burner 10. It will be understood that when the burner 10 is burning, a mixture of gas and primary air is ejected from the first fire hole 121 and ignited by the ignition device. The oxygen in the combustion space is consumed, generating a negative pressure. This allows air outside the pot support body 21 to be drawn into the first air inlet passage 31 from the bottom of the pot support body 21. The air then flows precisely through the first air inlet passage 31 to the first fire hole 121, thereby replenishing the flame burning at the first fire hole 121 with secondary air, ensuring more complete combustion of the gas and thereby improving the thermal efficiency of the burner 10.

[0029] In addition, the first air inlet channel 31 is formed on the outside of the pot support body 21, so that there is no need to open an additional air inlet channel on the pot support body 21, thereby ensuring the sealing integrity of the pot support body 21, improving the thermal insulation performance of the pot support body 21, and further improving the heat exchange efficiency and the thermal efficiency of the burner 10.

[0030] In one embodiment, the first air inlet channel 31 extends along the circumference of the burner 10, so that the space in all directions of the pot rack body 21 can flow to the first air inlet holes through the first air inlet channel 31, and the multiple first air inlet holes are usually arranged at intervals along the circumference of the burner 10, which can ensure that the first air inlet channel 31 can provide secondary air to the multiple first air inlet holes.

[0031] like Figure 1 、 Figure 3 and Figure 4 As shown, in some embodiments of the present application, a fire-prone protrusion 23 is provided on the inner circumferential side of the pot support body 21. The fire-prone protrusion 23 is located above the burner 10 and spaced apart from the burner 10. A guide channel 32 is formed between the bottom surface of the fire-prone protrusion 23 and the top surface of the burner 10. The guide channel 32 connects the first air inlet channel 31 and the first fire outlet 121. It can be understood that, see Figure 4 As shown, Figure 4 The direction indicated by the middle dotted arrow is the flow direction of the secondary air. After the secondary air flows into the first air inlet channel 31 from the bottom of the pot rack body 21, the secondary air continues to flow upward to the near-fire protrusion 23 and is blocked by the near-fire protrusion 23. It can then be guided to the first fire hole 121 by the guide channel 32. The guide channel 32 can guide the secondary space to the first fire hole 121 more accurately, thereby replenishing sufficient secondary air for the flame burning at the first fire hole 121, making the combustion of the gas more complete, and further improving the thermal efficiency of the burner 10.

[0032] In one embodiment, the near-fire protrusion 23 extends along the circumference of the burner 10 , so that the guide channel 32 can extend along the circumference of the burner 10 , ensuring that the guide channel 32 can provide secondary air to the multiple first air inlet holes.

[0033] In one embodiment, the angle α formed between the bottom surface of the protrusion near the fire 23 and the air guide surface 211 is 90 degrees ≤ α ≤ 160 degrees. It is understood that when α is less than 90 degrees, α is too small, and the angle formed between the bottom surface of the protrusion near the fire 23 and the air guide surface 211 is acute, resulting in an unsmooth flow of secondary air along the air guide surface 211 to the bottom surface of the protrusion near the fire 23, thereby reducing the secondary air flow rate and, in turn, the air supply efficiency at the first fire outlet 121. When α is greater than 160 degrees, α is too large, causing the air guide surface 211 to expand excessively toward the outside of the pot support body 21, thereby reducing the volume of the insulation cavity 27 within the pot support body 21 and affecting the thermal insulation performance of the pot support body 21. α can be 90 degrees, 100 degrees, 120 degrees, 160 degrees, or other degrees.

[0034] In one embodiment, the bottom surface of the fire-prone protrusion 23 can be parallel to the horizontal plane, or extend downwardly and obliquely toward the first fire hole 121 , so that the secondary air in the first air inlet channel 31 can be more accurately guided to the first fire hole 121 .

[0035] In one embodiment, a curved transition surface 28 is provided at the junction of the bottom surface of the protrusion near the fire 23 and the air inlet guide surface 211. The curved transition surface 28 connects the bottom surface of the protrusion near the fire 23 to the air inlet guide surface 211, thereby making the transition between the bottom surface of the protrusion near the fire 23 and the air inlet guide surface 211 smoother and allowing the secondary air to flow along the air inlet guide surface 211 to the bottom surface of the protrusion near the fire 23 more smoothly. The curved transition surface 28 may be a concave curved surface.

[0036] Continue to see Figure 3 and Figure 4 As shown, in some embodiments of the present application, the first fire hole 121 is located on the side of the fire-proximal protrusion 23 away from the pot rack body 21, and the projection of the fire-proximal protrusion 23 on the burner 10 is connected with or spaced apart from the first fire hole 121, so that the fire-proximal protrusion 23 avoids the first fire hole 121, and the fire-proximal protrusion 23 will not be located directly above the first fire hole 121 and block the first fire hole 121, thereby preventing the flame ejected from the first fire hole 121 from being blocked by the fire-proximal protrusion 23, and also preventing the fire-proximal protrusion 23 from being burned by the flame.

[0037] Furthermore, the radial distance between the first fire hole 121 and the fire protrusion 23 along the pot rack body 21 is d1, 0≤d1≤10 mm. It can be understood that when d1 is less than 0, part of the fire protrusion 23 will be located directly above the first fire hole 121 and block the first fire hole 121; when d1 is equal to 0, the projection of the fire protrusion 23 on the burner 10 is connected to the first fire hole 121; when d1 is greater than 0, the projection of the fire protrusion 23 on the burner 10 is spaced from the first fire hole 121, which can prevent the flame ejected from the first fire hole 121 from being blocked by the fire protrusion 23; when d1 is greater than 10, the distance between the fire protrusion 23 and the first fire hole 121 is too large, and the guide channel 32 cannot accurately supplement the secondary space to the first fire hole 121.

[0038] Furthermore, 0 ≤ d1 ≤ 6 mm ensures that the distance between the protrusion 23 near the fire and the first fire hole 121 is not too large, thereby ensuring that the diversion channel 32 can accurately replenish the secondary space to the first fire hole 121, thereby ensuring that the gas burns fully, improving thermal efficiency and reducing smoke. Here, d1 can be 0, 1 mm, 3 mm, 5 mm, 6 mm, or other values.

[0039] In some embodiments, the vertical distance between the top surface of the burner 10 and the bottom surface of the protrusion 23 near the fire is d2, 0<d2≤10 mm. It can be understood that the greater the distance between the top surface of the burner 10 and the bottom surface of the protrusion 23 near the fire, the larger the cross-section of the guide channel 32, the more secondary air is added to the flame of the first fire hole 121 through the guide channel 32, and the more complete the gas combustion. However, when the secondary air flows, it will also take away the heat generated by the flame combustion. When d2 is greater than 10 mm, the distance between the top surface of the burner 10 and the bottom surface of the protrusion 23 near the fire is too large, the amount of secondary air added is too much, and the air that is not consumed will take away a large amount of heat generated by the flame combustion, which will cause the combustion temperature of the flame to decrease, thereby reducing the thermal efficiency of the burner 10.

[0040] Furthermore, 0<d2≤7 mm, which prevents the top surface of the burner 10 from being too far away from the bottom surface of the protrusion 23. d2 can be 0, 1 mm, 3 mm, 5 mm, 7 mm or other values.

[0041] like Figures 3 to 5As shown, in some embodiments of the present application, the burner 10 includes an inner ring fire cover 11 and an outer ring fire cover 12. The outer ring fire cover 12 is arranged around the circumference of the inner ring fire cover 11 and is spaced apart from the inner ring fire cover 11. A second air inlet channel 13 connected to a first fire hole 121 is formed between the outer ring fire cover 12 and the inner ring fire cover 11. The first fire hole 121 is provided at the top of the outer ring fire cover 12. It is understandable that the secondary air is supplied to the first fire hole 121 through the two air supply channels, the first air inlet channel 31 and the second air inlet channel 13, which can further ensure that the gas at the first fire hole 121 is fully burned.

[0042] In one embodiment, a plurality of second fire holes 111 are provided on the outer periphery of the inner ring fire cover 11, and the plurality of second fire holes 111 are arranged at intervals along the circumference of the inner ring fire cover 11. The gas channel inside the burner 10 is also connected to the second fire holes 111. Combustible gas can also be ejected from the second fire holes 111 and ignited by the ignition device to generate flames, thereby further improving the thermal efficiency of the burner 10. At the same time, secondary air can be supplemented to the second fire holes 111 through the second air inlet channel 13 to ensure that the gas in the second fire holes 111 can be fully burned.

[0043] like Figures 3 to 5 As shown, in some embodiments of the present application, the pot rack body 21 includes an upper plate 24 and a lower plate 25. The lower plate 25 is located below the upper plate 24. The lower plate 25 is connected to the upper plate 24 and is enclosed with the upper plate 24 to form an insulating cavity 27. The insulating cavity 27 can play a role in heat insulation. The insulating cavity 27 can prevent the heat in the combustion space from dissipating outward, thereby reducing the heat energy loss of the burner 10 and further improving the thermal efficiency of the burner 10.

[0044] Furthermore, the insulation cavity 27 is a closed sealed cavity. In the present application, since there is no need to set an air intake channel on the pot rack body 21, the sealing integrity of the pot rack body 21 can be guaranteed, so that the insulation cavity 27 can be made into a closed sealed cavity, which can further enhance the insulation function of the insulation cavity 27, thereby further reducing the heat energy loss of the burner 10.

[0045] It should be noted that, in some embodiments, the pot rack body 21 may only include a two-layer plate structure of an upper plate 24 and a lower plate 25; in other embodiments, the pot rack body 21 may further include a middle partition 26, which is located in the heat insulation cavity 27 and is connected to the upper plate 24 and / or the lower plate 25, and divides the heat insulation cavity 27 into a first cavity and a second cavity, which can further improve the heat insulation performance of the pot rack body 21.

[0046] In one embodiment, the stove further includes a support plate 40, which is located at the bottom of the support leg 22 and connected to the support leg 22. The support plate 40 is arranged opposite to the bottom surface of the pot rack body 21. The support plate 40 can increase the support area of ​​the stove, making the stove more stable.

[0047] In the description of the present application, 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", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0048] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A stove, characterized in that: include: A burner, wherein a plurality of first fire outlet holes are provided on the top of the burner; as well as, A pot stand, comprising a pot stand body and a plurality of support legs, wherein the pot stand body is arranged around the periphery of the burner, the support legs are arranged at the bottom of the pot stand, and the plurality of support legs are arranged at intervals around the periphery of the pot stand body; The inner peripheral side surface of the pot support body includes an air guide surface, which extends upward from the bottom of the pot support body and is spaced apart from the burner. A first air guide surface and an outer peripheral side surface of the burner form a first air intake channel connected to the first fire outlet.

2. The cooker according to claim 1, characterized in that: A fire-prone convex portion is provided on the inner peripheral side surface of the pot support body, and the fire-prone convex portion is located above the burner and spaced apart from the burner. A guide channel is formed between the bottom surface of the fire-prone convex portion and the top surface of the burner, and the guide channel connects the first air inlet channel and the first fire outlet.

3. The cooker according to claim 2, characterized in that: The included angle formed by the bottom surface of the near-fire convex portion and the guide air inlet surface is α, and 90 degrees ≤ α ≤ 160 degrees.

4. The cooker according to claim 2, characterized in that: An arcuate transition surface is provided at the connection between the bottom surface of the protrusion near the fire and the flow-guiding air-inlet surface, and the bottom surface of the protrusion near the fire is connected to the flow-guiding air-inlet surface through the arcuate transition surface.

5. The cooker according to claim 2, characterized in that: The first fire outlet is located on a side of the fire-proximal protrusion away from the pot support body, and a projection of the fire-proximal protrusion on the burner is connected to or spaced apart from the first fire outlet.

6. The cooker according to claim 5, characterized in that: The distance between the first fire outlet and the fire-proximal protrusion along the radial direction of the pot support body is d1, 0≤d1≤10 mm.

7. The cooker according to claim 2, characterized in that: The vertical distance between the top surface of the burner and the bottom surface of the protrusion near the fire is d2, 0<d2≤10 mm.

8. The cooker according to claim 1, characterized in that: The burner comprises: Inner ring fire cover; An outer ring fire cover is arranged around the circumference of the inner ring fire cover and is separated from the inner ring fire cover. A second air inlet channel connected to the first fire outlet is formed between the outer ring fire cover and the inner ring fire cover. The first fire outlet is arranged at the top of the outer ring fire cover.

9. The cooker according to claim 1, characterized in that: The pot support body comprises: upper plate; The lower plate is located below the upper plate, is connected to the upper plate, and is enclosed with the upper plate to form a heat-insulating cavity.

10. The cooker according to claim 9, characterized in that: The heat-insulating cavity is a closed and sealed cavity.

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