Novel pot supporting assembly

Abstract

The novel pot supporting assembly comprises a base which is of a hollow tubular structure, and the side edge of the base is provided with a curled edge; the at least three groups of connecting assemblies are arranged on the base and are used for connecting the base and the gas stove; the supporting assemblies are arranged on the base, and the length of the supporting assemblies can be adjusted; the fire gathering assembly comprises a fire gathering reflection frame, an upper fire gathering net and a lower fire gathering net, the upper fire gathering net and the lower fire gathering net are arranged on the fire gathering reflection frame in parallel, the fire gathering reflection frame is connected with the base through the supporting assembly, and the position of the fire gathering reflection frame can be changed by adjusting the length of the supporting assembly. And the fire gathering net can be adapted to the stove cores of the gas stoves with different heights. According to the novel pot supporting assembly, through the double-layer staggered fire gathering net structure, flames are guided to gather towards the center of the pot bottom, and directional reflection of radiant heat by the arc-shaped heat reflecting plate at the bottom is matched, so that the effective utilization rate of the flames is improved, and overflow loss of high-temperature airflow is remarkably reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of pot support components, in particular to a novel pot support component. Background Art

[0002] The pot support components of existing household gas stoves generally lack flame-concentrating and heat-insulating design. This allows the flame to be easily disturbed by external airflow and spread outward, preventing a significant amount of heat from reaching the pot bottom. Traditional pot supports are often open metal structures that fail to control the flame's direction, allowing high-temperature airflow to escape around the pot, resulting in significant heat loss. Furthermore, radiant heat from the pot escapes directly downward through the gaps in the support, causing the stovetop to age due to long-term heat exposure, leaving significant room for energy-saving improvements.

[0003] Existing improvements, such as windshields and energy-focusing rings, often suffer from structural flaws. Windshields lack insulation, posing a safety hazard; energy-focusing rings have poor adaptability and are prone to deformation and detachment, making them incompatible with different pots. Furthermore, most pot supports are fixed, making it impossible to adjust flame concentration based on pot shape or form a thermal barrier to prevent heat loss, hindering heat transfer efficiency from exceeding existing technical bottlenecks. Summary of the Invention

[0004] The purpose of the present invention is to provide a new type of pot support assembly to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A novel pot support assembly can be connected to a gas stove, comprising:

[0007] The base is a hollow tubular structure with rolled edges on the sides;

[0008] at least three sets of connection components, which are arranged on the base and used to connect the base and the gas stove;

[0009] At least three sets of support components, which are arranged on the base and have adjustable lengths;

[0010] The fire gathering assembly includes a fire gathering reflector frame and an upper fire gathering net and a lower fire gathering net arranged parallel to the fire gathering reflector frame. The fire gathering reflector frame is connected to the base through the support assembly. The position of the fire gathering reflector frame can be changed by adjusting the length of the support assembly, so that the fire gathering net can adapt to the stove core of the gas stove of different heights.

[0011] Furthermore, the base includes an annular support member, a heat reflection plate arranged on the side of the support member away from the gas stove, and a fire gathering plate connected to the heat reflection plate. The support assembly is arranged on the heat reflection plate, and the side of the support member close to the gas stove is provided with the rolled edge.

[0012] Furthermore, the heat reflection plate is a hollow frustum structure, the diameter of which gradually expands in the direction away from the gas stove and is designed to be integrally formed with the fire gathering plate and the support member.

[0013] Furthermore, the heat reflector plate is provided with through holes connected to the support assembly, and the number of the through holes is not less than three.

[0014] Furthermore, the support member is circumferentially provided with connection holes connected to the connection assembly, and the number of the connection holes is not less than four.

[0015] Furthermore, the connecting assembly includes a connecting bolt passing through the connecting hole, a connecting nut connected to the connecting bolt and in contact with the support member, and a connecting gasket sleeved on the connecting bolt. The connecting bolt is also threadedly connected to an external connecting nut and an internal connecting nut respectively arranged on both sides of the support member.

[0016] Furthermore, the support assembly includes a support bolt passing through the through hole, a support nut arranged at the end of the support bolt, and a height adjustment nut threadedly connected to the support bolt and connected to the fire gathering reflection frame. Adjusting the position of the height adjustment nut on the support bolt can change the position of the fire gathering net.

[0017] Furthermore, the support bolt is sleeved with an outer support gasket and an inner support gasket which are respectively arranged on both sides of the heat reflection plate, and an outer support nut and an inner support nut are also threadedly connected thereto. The outer support nut is arranged between the support nut and the outer support gasket, and the inner support nut is arranged between the inner support gasket and the height adjustment nut.

[0018] Furthermore, the fire gathering assembly also includes a connecting plate sleeved on the support bolt, and the end of the connecting plate away from the support bolt is connected to the fire gathering reflection frame which is narrow at the bottom and wide at the top, and the diameter of the upper fire gathering net is larger than the diameter of the lower fire gathering net.

[0019] Furthermore, at least three support frames are provided on the fire-gathering reflection frame, and the ends thereof away from the fire-gathering reflection frame extend toward the stove core. The height of the extension portion decreases gradually from the outside to the inside, and a grate is provided on the support frame.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] This new pot support assembly uses a double-layer staggered fire-gathering net structure to guide the flame to the center of the pot bottom. Combined with the directional reflection of radiant heat by the curved heat reflector at the bottom, it improves the effective utilization rate of the flame and significantly reduces the overflow loss of high-temperature airflow. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1It is a schematic diagram of the front structure of the present invention;

[0023] Figure 2 For the present invention Figure 1 A in the figure shows the enlarged structural diagram;

[0024] Figure 3 Schematic diagram of the bottom structure of the present invention;

[0025] Figure 4 For the present invention Figure 3 Schematic diagram of the enlarged structure at B in the middle;

[0026] Figure 5 For the present invention Figure 3 Schematic diagram of the enlarged structure at C in the middle;

[0027] Figure 6 It is a structural schematic diagram of the base of the present invention;

[0028] Figure 7 It is a structural schematic diagram of the fire-gathering reflection frame of the present invention.

[0029] In the figure: 1. Base; 11. Support; 12. Heat reflector; 13. Fire gathering plate; 14. Connecting hole; 2. Connecting assembly; 21. Connecting nut; 22. External connecting nut; 23. Connecting gasket; 24. Connecting bolt; 25. Internal connecting nut; 3. Support assembly; 31. Support nut; 32. External supporting nut; 33. External supporting gasket; 34. Support bolt; 35. Internal supporting nut; 36. Internal supporting gasket; 37. Heightening nut; 4. Fire gathering assembly; 41. Connecting plate; 42. Fire gathering reflector frame; 43. Upper fire gathering net; 44. Lower fire gathering net; 45. Support frame; 46. Grate. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] See also Figure 1 and Figure 6 As shown, the present invention provides a technical solution: a new type of pot support assembly, which is arranged on a gas stove and includes:

[0032] The base 1 is a hollow tubular structure with a curled edge on the side. The curved curled edge facilitates placement on the stovetop of the gas stove.

[0033] At least three sets of connection components 2, which are arranged on the base 1 and used to connect the base 1 and the gas stove;

[0034] At least three sets of support components 3, which are arranged on the base 1 and have adjustable lengths;

[0035] The fire gathering assembly 4 includes a fire gathering reflector frame 42 and upper and lower fire gathering nets 43 and 44 arranged parallel to the fire gathering reflector frame 42. The fire gathering reflector frame 42 is connected to the base 1 via a support assembly 3. Adjusting the length of the support assembly 3 can change the position of the fire gathering reflector frame 42, allowing the fire gathering net to adapt to the stove cores of gas stoves of different heights. The connecting assembly 2 secures the novel pot support assembly to the gas stove. By changing the height of the support assembly 3, the fire gathering net is moved up and down, moving it closer to or away from the stove core, thereby adapting to different stove core flames. This helps guide the flame to the bottom of the pot, ensuring that the flame of pots of different diameters covers the pot bottom, avoiding heat offset and waste caused by different pot shapes.

[0036] Preferably, Figure 7 As shown, the mesh openings of the upper fire gathering net 43 and the lower fire gathering net 44 are arranged in an interlaced manner. In this embodiment, the upper fire gathering net 43 and the lower fire gathering net 44 are wound around the fire gathering reflection frame 42 to form multiple mesh openings in the upper and lower layers. This staggered mesh opening design conforms to the flow intensification principle. When the gas-air mixture flows through the double-layer staggered mesh openings, it can produce the dual effects of the Coanda effect and the Venturi effect. In many experiments, it was found that the offset angle of the upper mesh opening is preferably 15°-25°, so that the flame produces a spiral upward trajectory. The diameter of the lower mesh opening should be reduced by 10%-15% compared to the upper layer to form a pressure gradient difference. The mesh interlacing rate (non-overlapping area ratio) is controlled in the range of 55%-65% to achieve the best flame rectification effect. It should be noted that this technical solution does not specifically limit the size and number of the upper and lower mesh openings. As long as the same function can be achieved, the user can set it according to actual needs.

[0037] Preferably, the base 1 includes an annular support member 11, a heat reflector 12 arranged on the side of the support member 11 away from the gas stove, and a fire gathering plate 13 connected to the heat reflector 12. The support assembly 3 is arranged on the heat reflector 12, and the side of the support member 11 close to the gas stove is provided with a curling edge.

[0038] Preferably, the heat reflector 12 is a hollow frustum, with its diameter gradually increasing as it moves away from the gas stove. It is integrally formed with the fire collecting plate 13 and the support 11. The support 11 encloses the stove core, and the curved heat reflector 12 guides the flame inward, thereby increasing the flame's effective utilization rate and significantly reducing the loss of high-temperature airflow.

[0039] Preferably, the heat reflector 12 is provided with through holes connected to the support assembly 3 , and the number of the through holes is not less than three.

[0040] Preferably, the support member 11 is circumferentially provided with connection holes 14 for connecting with the connection assembly 2 , and the number of the connection holes 14 is not less than four.

[0041] Preferably, Figure 4 As shown, the connecting assembly 2 includes a connecting bolt 24 passing through the connecting hole 14, a connecting nut 21 connected to the connecting bolt 24 and in contact with the support member 11, and a connecting washer 23 sleeved on the connecting bolt 24. The connecting bolt 24 is also threadedly connected to an outer connecting nut 22 and an inner connecting nut 25 respectively arranged on both sides of the support member 11. In this embodiment, as shown in FIG. Figure 3 As shown, the support member 11 is evenly provided with a plurality of long strip-shaped connecting holes 14 in the circumferential direction. The connecting bolts 24 pass through the connecting holes 14 and abut against the outside of the stove. The connecting bolts 24 can slide circumferentially in the connecting holes 14, and stoves of various shapes can be used. It is only necessary to adjust the position of the connecting bolts 24 in the connecting holes 14 to tighten the stove to the inside of the new pot support assembly. It has stronger applicability and does not require the modification of existing round stoves or square stoves, thus saving resources.

[0042] Preferably, Figure 5 As shown, the support assembly 3 includes a support bolt 34 connected to the heat reflector 12, a support nut 31 disposed at the end of the support bolt, and a height adjustment nut 37 threadedly connected to the support bolt 34 and connected to the fire focusing reflector frame 42. Adjusting the position of the height adjustment nut 37 on the support bolt 34 changes the position of the fire focusing net. The height adjustment nut 37 drives the fire focusing reflector frame 42 up and down, allowing the user to adjust it according to actual needs, thereby achieving a better heating effect and saving energy.

[0043] Preferably, Figure 1 and Figure 2 As shown, the support bolt 34 is sleeved with an outer support gasket 33 and an inner support gasket 36 which are respectively arranged on both sides of the heat reflection plate 12, and is also threadedly connected with an outer support nut 32 and an inner support nut 35. The outer support nut 32 is arranged between the support nut 31 and the outer support gasket 33, and the inner support nut 35 is arranged between the inner support gasket 36 and the height adjustment nut 37.

[0044] Preferably, the fire gathering assembly 4 further comprises a connecting piece 41 sleeved on the support bolt 34. The end of the connecting piece 41 away from the support bolt 34 is connected to a fire gathering reflector frame 42 that is narrow at the bottom and wide at the top. The diameter of the upper fire gathering net 43 is larger than the diameter of the lower fire gathering net 44. In this embodiment, the fire gathering reflector frame 42 is an annular structure, the diameter of which decreases gradually from the upper fire gathering net 43 to the lower fire gathering net 44, and its height is 1.5-2.5 cm. The upper and lower edges of the fire gathering reflector frame 42 are shaped like the battlements of the Great Wall, and the upper and lower layers contain a total of 20-50 battlements. The two layers of fire gathering net are grid-shaped and cross-connected, and two layers of nickel wire (heating wire, that is, the upper fire gathering net 43 to the lower fire gathering net 44) are hung to stabilize the flame and evenly distribute it on the bottom of the pot, thereby increasing thermal efficiency.

[0045] Preferably, at least three support frames 45 are provided on the side of the fire-gathering reflector frame 42 away from the fire-gathering net. The ends of these support frames 45, away from the fire-gathering reflector frame 42, extend toward the stove core, with the height of the extensions gradually decreasing from the outside to the inside. Grates 46 are provided on the support frames 45. The support frames 45, which are higher on the outside and lower on the inside, prevent the pot bottom from slipping and can accommodate different pot bottoms, providing a stable support and preventing the pot from slipping. The grates 46 provided on the support frames 45 are suitable for small pots, effectively preventing small milk pots from slipping while also not compressing the fire-gathering net, resulting in a better heating effect.

[0046] In this embodiment, support member 11 is a hollow cylindrical structure, 2 cm high and 18 cm in diameter. It is sleeved onto the outside of the gas stove core to support the entire device. The bottom edge of support member 11 is curled inward to enhance tension. The material is 5-8 mm thick and 1.5-2.5 cm high, with the curled edge contacting the gas stove.

[0047] The arc-shaped heat reflector 12 is set on the top of the support 11, which can absorb the heat of the gas stove and reflect the heat upward, maximizing the use of heat. The diameter of the heat reflector 12 is 24-28 cm. The top of the heat reflector 12 is connected to a fire gathering plate 13. The fire gathering plate 13 is used to gather the flame generated by the gas stove to prevent the flame from deviating outward. The diameter of the fire gathering plate 13 is 24-28 cm. The support 11 is provided with a connection hole 14 for connecting to the connection component 2. The connection hole 14 is used to fix the connection component 2. The number of the connection holes 14 is 6-12. Three of the connection holes 14 are connected to the connection component 2 and fixed to the base of the stove, so that the device and the stove are integrated. The remaining connection holes 14 are used to correspond to the air inlet on the stove head, which has the effect of ventilation and combustion. The connection hole 14 is arranged to be opened around the support member 11. The connection hole 14 is a waist-shaped hole. The width of the connection hole 14 matches the connecting bolt 24. A threaded hole for connecting to the support assembly 3 is opened on the heat reflection plate 12. The size of the threaded hole matches the size of the support bolt 34. There are four of them. The support assembly 3 lifts the fire gathering assembly 4 above the stove core, which has a better heat insulation effect, can effectively reduce the temperature of the stove surface, and extend the service life of the gas stove.

[0048] After the connecting bolt 24 passes through the base 1, the gas stove and the base 1 are firmly fixed together. A connecting nut 21 is provided at the outer end of the connecting bolt 24. The connecting nut 21 is used to facilitate the operation of the connecting bolt 24. A connecting gasket 23 is sleeved on the connecting bolt 24. The number of connecting gaskets 23 in each group is at least two, and the connecting assembly 2 has at least three groups. The main function of the connecting gasket 23 in contact with the side wall of the support 11 is to stabilize the connection between the connecting assembly 2 and the base 1. The connecting bolt 24 is also threaded with an outer connecting nut 22 and an inner connecting nut 25. The outer connecting nut 22 and the inner connecting nut 25 are used to fix the connecting bolt 24 on the connecting hole 14, making the overall connection more stable. Figure 3 and Figure 4 As shown, the order from inside to outside is that the inner side of the outer connecting nut 22 is adhered to the connecting gasket 23, the inner side of the connecting gasket 23 is adhered to the support member 11, the inner side of the support member 11 is also adhered to the connecting gasket 23, and the inner side of the connecting gasket 23 is adhered to the inner side of the inner connecting nut 25. The outer connecting nut 22 is arranged on the outside of the base 1, and the inner connecting nut 25 is arranged inside the base 1. The outer connecting nut 22 and the inner connecting nut 25 together squeeze the support member 11, thereby fixing the connecting bolt 24.

[0049] The support assembly 3 includes a support bolt 34 connected to the base 1. The height of the support bolt 34 should be higher than the height of the base 1 to ensure that sufficient oxygen can enter the gas stove. One end of the support bolt 34 is connected to a support nut 31. The support nut 31 is used to facilitate the operation of the support bolt 34. The support bolt 34 passes through the threaded hole and is connected to the heat reflector 12. An outer support gasket 33 and an inner support gasket 36 are sleeved on the support bolt 34. The outer support gasket 33 and the inner support gasket 36 are used to strengthen the connection between the support assembly 3 and the base 1. It is also used to fix the support bolt 34 with an external support nut 32 and an internal support nut 35. The support bolt 34 is also threaded with an external support nut 32, an internal support nut 35 and a height adjustment nut 37, wherein the height adjustment nut 37 is used to support the fire gathering component 4. When the fire gathering component 4 is sleeved on the support bolt 34, the height adjustment nut 37 is used to support the fire gathering component 4. The height adjustment nut 37 adjusts the height of the fire gathering component 4 by rotating on the support bolt 34 to adjust the height position. The connecting component 2 and the supporting component 3 are at least three groups.

[0050] The fire gathering component 4 is provided on the base 1 by the support component 3. The support component 3 is used to adjust the position of the fire gathering component 4. The height adjustment nut 37 is used to support the fire gathering component 4. The fire gathering component 4 includes a connecting piece 41 sleeved on the support bolt 34. The number of the connecting pieces 41 and the support component 3 is the same, both of which are at least three. The other end of the connecting piece 41 is connected to a fire gathering reflection frame 42 that is narrow at the bottom and wide at the top. This design of narrow at the bottom and wide at the top is used to enhance the fire gathering effect of the fire gathering reflection frame 42. The fire gathering reflection frame 42 is provided with an upper fire gathering net 43 and a lower fire gathering net 44. The double-layer fire-gathering net is wrapped around the upper and lower surfaces of the fire-gathering reflecting frame 42 in a folded manner. This design allows the flame to first heat the upper fire-gathering net 43 and the lower fire-gathering net 44 to achieve the effect of gathering fire. The upper fire-gathering net 43 and the lower fire-gathering net 44 are made of nickel wire, and then the bottom of the pot is heated. At least three support frames 45 are also provided on the fire-gathering reflecting frame 42. The support frames 45 are used to support the pot and the grate 46. The support frames 45 are provided with grate 46. The grate 46 is used when a container smaller than the size of the support frame 45 needs to be burned, so as to enhance the practicality of the device.

[0051] When using the new pot support assembly, first, attach the support member 11 of the base 1 to the outside of the gas stove. Then, insert the connecting bolt 24 in the connecting assembly 2 through the connecting hole 14 of the base 1 and press it against the gas stove. Use the connecting nut 21 to operate the connecting bolt 24, and use the connecting gasket 23, outer connecting nut 22, and inner connecting nut 25 to firmly secure the base 1 to the gas stove. Next, insert the supporting bolt 34 through the threaded hole of the heat reflector 12. Use the outer supporting gasket 33, inner supporting gasket 36, outer supporting nut 32, and inner supporting nut 35 to firmly connect the supporting assembly 3 to the base 1. After installation, the height of the fire focusing assembly 4 can be precisely adjusted by rotating the height adjustment nut 37 on the supporting bolt 34. The connecting piece 41 of the fire focusing assembly 4 is inserted into the supporting bolt 34, which drives the fire focusing reflector frame 42, which is narrow at the bottom and wide at the top, to adjust to the appropriate height. During use, the flame generated by the gas stove is first heated and gathered by the upper fire gathering net 43 and the lower fire gathering net 44 on the fire gathering reflection frame 42 to prevent the flame from deviating outward and improve heat concentration; the heat reflection plate 12 absorbs the heat from the gas stove and reflects it upward, and together with the fire gathering plate 13, maximizes heat utilization; the support frame 45 can directly support the pot. When using a container smaller than the size of the support frame 45, the grate 46 is placed to enhance the practicality of the device. The various components work closely together to achieve efficient and stable pot support and fire gathering heating functions.

[0052] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A new type of pot support assembly, which can be connected to a gas stove, characterized in that: include: A base (1) having a hollow tubular structure and having curled edges on the sides; At least three groups of connection components (2), which are arranged on the base (1) and used to connect the base (1) and the gas stove; At least three groups of support components (3), which are arranged on the base (1) and have adjustable lengths; A fire gathering assembly (4) comprises a fire gathering net, wherein the fire gathering net is connected to the base (1) via the support assembly (3). The position of the fire gathering net can be changed by adjusting the length of the support assembly (3), so that the fire gathering net can be adapted to the stove cores of gas stoves of different heights.

2. A novel pot support assembly according to claim 1, characterized in that: The base (1) comprises an annular support member (11), a heat reflection plate (12) arranged on a side of the support member (11) away from the gas stove, and a fire gathering plate (13) connected to the heat reflection plate (12); the support assembly (3) is arranged on the heat reflection plate (12); and the side of the support member (11) close to the gas stove is provided with the curling edge.

3. A novel pot support assembly according to claim 2, characterized in that: The heat reflection plate (12) is a hollow frustum structure, the diameter of which gradually expands in a direction away from the gas stove and is integrally formed with the fire gathering plate (13) and the support member (11).

4. A novel pot support assembly according to claim 2 or 3, characterized in that: The heat reflection plate (12) is provided with through holes connected to the support assembly (3), and the number of the through holes is not less than three.

5. The novel pot support assembly according to claim 4, characterized in that: The support member (11) is circumferentially provided with connection holes (14) connected to the connection assembly (2), and the number of the connection holes (14) is not less than four.

6. The novel pot support assembly according to claim 5, characterized in that: The connecting assembly (2) comprises a connecting bolt (24) passing through the connecting hole (14), a connecting nut (21) connected to the connecting bolt (24) and in contact with the support member (11), and a connecting gasket (23) sleeved on the connecting bolt (24); the connecting bolt (24) is also threadedly connected to an outer connecting nut (22) and an inner connecting nut (25) respectively arranged on two sides of the support member (11).

7. The novel pot support assembly according to claim 4, characterized in that: The support assembly (3) includes a support bolt (34) passing through the through hole, a support nut (31) arranged at the end of the support bolt (34), and a height adjustment nut (37) threadedly connected to the support bolt (34) and connected to the fire gathering reflection frame (42). The position of the height adjustment nut (37) on the support bolt (34) can be adjusted to change the position of the fire gathering net.

8. The novel pot support assembly according to claim 7, characterized in that: The support bolt (34) is sleeved with an outer support gasket (33) and an inner support gasket (36) respectively arranged on both sides of the heat reflector (12), and is also threadedly connected with an outer support nut (32) and an inner support nut (35). The outer support nut (32) is arranged between the support nut (31) and the outer support gasket (33), and the inner support nut (35) is arranged between the inner support gasket (36) and the height adjustment nut (37).

9. The novel pot support assembly according to claim 7, characterized in that: The fire gathering assembly (4) further comprises a fire gathering reflection frame (42) connected to the fire gathering net, and a connecting piece (41) sleeved on the supporting bolt (34); the end of the connecting piece (41) away from the supporting bolt (34) is connected to the fire gathering reflection frame (42) which is narrow at the bottom and wide at the top; the fire gathering net comprises an upper fire gathering net (43) and a lower fire gathering net (44) arranged in parallel; the diameter of the upper fire gathering net (43) is larger than the diameter of the lower fire gathering net (44).

10. The novel pot support assembly according to claim 9, characterized in that: At least three support frames (45) are provided on the fire-gathering reflection frame (42), and the ends thereof away from the fire-gathering reflection frame (42) extend toward the stove core, and the height of the extension portion decreases gradually from the outside to the inside. The support frames (45) are provided with grates (46).

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