A combustion plate mounting structure and its preparation method

Abstract

This invention discloses a combustion plate mounting structure and its preparation method. The mounting structure includes a flame cap and a combustion plate. The flame cap has a central through hole and an annular gas cavity. Bosses are respectively provided on the outer side of the inner annular wall and the inner side of the outer annular wall of the annular gas cavity. A limiting part facing the interior of the annular gas cavity is provided at the upper inner end of the inner annular wall and / or the upper outer outer end of the outer annular wall. The combustion plate is installed inside the annular gas cavity and is secured between the bosses and the limiting part. This combustion plate mounting structure is simple in structure and easy to manufacture. It can achieve upper and lower limiting of the combustion plate, making the installation of the combustion plate more stable and reliable. Furthermore, by first machining a step and then riveting the vertical edge of the step towards the interior of the annular gas cavity to form the limiting part, defects such as cracking after riveting the vertical edge of the step to form the limiting part can be avoided.

Description

Technical Field

[0001] This invention relates to the field of stove technology, and in particular to a combustion plate mounting structure and its preparation method. Background Technology

[0002] Currently, high-end energy-efficient stoves on the market have both internal and external burners. The external burner provides high-heat stir-frying, while the internal burner offers a low-heat function. However, regardless of whether it's an internal or external burner, most stoves consist of an alloy honeycomb plate assembled and fixed together. The fixing process is complex. Taking the internal burner as an example, the alloy honeycomb is typically first inserted into a clamping structure, and then fixed using a spinning process. However, the clamping structure undergoes significant plastic deformation during spinning, making it prone to cracking and other defects. Summary of the Invention

[0003] The present invention aims to at least partially solve one of the problems existing in the prior art. To this end, the present invention proposes a combustion plate mounting structure, which is simple in structure and easy to process. It not only ensures the stable and reliable installation of the combustion plate, but also avoids adverse phenomena such as cracking after the burner cap is spun.

[0004] The present invention also provides a method for preparing a combustion plate mounting structure.

[0005] The combustion plate mounting structure provided above is achieved through the following technical solution:

[0006] A combustion plate mounting structure includes: a flame cap, the flame cap having a central through hole and an annular gas cavity with openings at the upper and lower ends, a boss being provided on the outer side of the inner annular wall and the inner side of the outer annular wall of the annular gas cavity, a step being provided circumferentially on the upper inner end of the inner annular wall and / or the upper outer end of the outer annular wall, the vertical edge of the step being machined and riveted to form a limiting part facing the inside of the annular gas cavity; and a combustion plate, the combustion plate being installed in the annular gas cavity, and the combustion plate being snapped between the boss and the limiting part.

[0007] In some embodiments, the vertical cross-section of the limiting portion is an inclined or arc-shaped surface that extends from bottom to top and faces the interior of the annular air cavity.

[0008] In some embodiments, a clearance hole facing the combustion plate is provided at the connection between the inner ring wall and the inner limiting part, and a clearance hole facing the combustion plate is provided at the connection between the outer ring wall and the outer limiting part.

[0009] In some embodiments, the corners of the combustion plate are arranged to correspond to the openings of the vent holes.

[0010] In some embodiments, the burner cap is further provided with a plurality of transversely arranged air channels, which are located below the combustion plate and penetrate the inner ring wall and the outer ring wall, and the central through hole connects to the air channels.

[0011] In some embodiments, the outer surface of the flame cap is provided with an outwardly extending protrusion, which is located below the air passage and integrally formed with the outer side wall of the flame cap.

[0012] The method for preparing a combustion plate mounting structure provided above is achieved through the following technical solution:

[0013] A method for preparing a combustion plate mounting structure includes the following steps:

[0014] S1: A blank flame cap is cast using metal material, the flame cap having at least a central through hole and an annular air cavity with openings at the top and bottom ends;

[0015] S2: Protrusions are machined on the inner sides of the opposite two side walls of the annular gas cavity, and the protrusions are used to support the pre-formed combustion plate.

[0016] S3: A step is machined at the upper end of the inner side of the inner ring wall and / or the upper end of the outer side of the outer ring wall of the annular air cavity;

[0017] S4: Place the combustion plate from top to bottom inside the annular gas cavity and abut against the protrusion;

[0018] S5: Use an angled hob to machine and rivet along the step and toward the inside of the annular air cavity to form a limiting part for fixing the combustion plate.

[0019] In some embodiments, the height of the vertical side of the step is 1.5 mm, and the thickness of the vertical side is 0.9 mm.

[0020] In some embodiments, before or after the step is machined, clearance holes are machined at the upper outer side of the inner ring wall and / or the upper inner side of the outer ring wall.

[0021] In some embodiments, before the protrusion is machined out, the outer surface of the flame cap is surface treated first, and then the inner surface of the annular gas cavity is surface treated according to a preset size; or, before the protrusion is machined out, the outer surface of the flame cap is surface treated first, and then the upper inner surface of the annular gas cavity is surface treated according to a preset size, and after the protrusion is machined out, the lower inner surface of the annular gas cavity is surface treated according to a preset size.

[0022] Compared with the prior art, the present invention has at least the following beneficial effects:

[0023] 1. The present invention provides a combustion plate mounting structure, which is simple in structure and easy to process. By first installing the combustion plate in the annular gas cavity, and then processing and riveting the vertical edge of the step to form a limiting part, the combustion plate is limited in the upper and lower positions, making the installation of the combustion plate more stable and reliable.

[0024] 2. By first machining the steps, the deformability and flexibility of the edge of the annular air cavity near the upper opening are increased, thereby avoiding defects such as cracking after the vertical edge of the steps is machined and riveted to form a limiting part. Attached Figure Description

[0025] Figure 1 This is a cross-sectional view of the combustion plate mounting structure in Embodiment 1 of the present invention;

[0026] Figure 2 This is a cross-sectional view of the flame cover in Embodiment 1 of the present invention;

[0027] Figure 3 yes Figure 2 A magnified view of part A in the middle;

[0028] Figure 4 This is a flowchart of the preparation method in Embodiment 2 of the present invention;

[0029] Figure 5 This is a schematic diagram of the structure of the flame cap in step S1 of embodiment 2 of the present invention;

[0030] Figure 6 This is a cross-sectional view of the upper part of the annular air cavity being processed in Embodiment 2 of the present invention;

[0031] Figure 7 This is a cross-sectional view of the lower part of the annular air cavity being processed in Embodiment 2 of the present invention;

[0032] Figure 8 This is a schematic diagram of the structure of the flame cap in step S3 of embodiment 2 of the present invention;

[0033] Figure 9 This is a front view of the flame cover in step S3 of embodiment 2 of the present invention;

[0034] Figure 10 This is a schematic diagram of the structure of the fire cover in step S5 of embodiment 2 of the present invention. Detailed Implementation

[0035] The following embodiments illustrate the present invention, but the present invention is not limited to these embodiments. Modifications to the specific embodiments of the present invention or equivalent substitutions for some technical features, without departing from the spirit of the present invention, should all be covered within the scope of the technical solutions claimed in the present invention.

[0036] Example 1

[0037] like Figures 1 to 3 As shown, this embodiment provides a combustion plate mounting structure, including a burner cap 1 and a combustion plate 2. The burner cap 1 has a central through hole 11 and an annular gas cavity 12 with openings at both the upper and lower ends. The lower end of the annular gas cavity 12 is used to connect to the stove burner head, and the upper end is used to install the combustion plate 2. Bosses 13 are respectively provided on the outer side of the inner annular wall 101 and the inner side of the outer annular wall 102 of the annular gas cavity 12. These bosses 13 support the combustion plate 2 and limit its lower position. A limiting portion 14 extending towards the interior of the annular gas cavity 12 is provided at the upper end of the inner annular wall 101 and / or the outer annular wall 102. This limiting portion 14 prevents the combustion plate 2 from detaching from the annular gas cavity 12 of the burner cap 1 and limits its upper position. In this embodiment, the inner side and outer side of the inner ring wall 101 refer to the inner side and outer side of the inner ring wall 101 in the radial direction. That is, the inner side of the inner ring wall 101 is the side of the inner ring wall 101 facing the central through hole 11, while the outer side of the inner ring wall 101 is the side of the inner ring wall 101 away from the central through hole 11 (i.e., the side of the inner ring wall 101 facing the annular air cavity 12). Similarly, the inner side and outer side of the outer ring wall 102 refer to the inner side and outer side of the outer ring wall 102 in the radial direction.

[0038] Preferably, a step 15 is provided circumferentially on the upper inner side of the inner ring wall 101 and / or the upper outer side of the outer ring wall 102. The step 15 is composed of a transverse edge 152 and a vertical edge (not shown in the figure), wherein the vertical edge of the step 15 forms the edge of the annular gas cavity 12 near the upper opening. The limiting part 14 is formed by riveting the vertical edge of the step 15 toward the inside of the annular gas cavity 12. When installing the combustion plate 2, the combustion plate 2 is first installed from top to bottom in the annular gas cavity 12 and abuts against the boss 13. Then, the vertical edge of the step 15 is riveted to form the limiting part 14, so that the combustion plate 2 is locked between the boss 13 and the limiting part 14, thereby fixing the combustion plate 2.

[0039] As can be seen, the combustion plate mounting structure of this embodiment is simple in structure and easy to process. By first installing the combustion plate 2 in the annular gas cavity 12, and then machining and riveting the vertical edge of the step 15 to form a limiting part 14, the combustion plate 2 is limited at the top and bottom, making the installation of the combustion plate 2 more stable and reliable. In addition, by machining the step 15 first, the deformability and flexibility of the edge of the annular gas cavity 12 near the upper opening are increased, thereby avoiding defects such as cracking after machining and riveting the vertical edge of the step 15 to form the limiting part 14.

[0040] Preferably, in this embodiment, steps 15 are provided circumferentially on the upper inner side of the inner ring wall 101 and the upper outer side of the outer ring wall 102. An inner limiting part 14 is formed by riveting the vertical edge of the inner step 15 toward the inside of the annular air cavity 12, and an outer limiting part 14 is formed by riveting the vertical edge of the outer step 15 toward the inside of the annular air cavity 12. In this way, the upper radial inner and outer sides of the combustion plate 2 are limited by the two limiting parts 14, which helps to further strengthen the installation firmness of the combustion plate 2. At the same time, it can avoid defects such as cracking at the connection of each limiting part 14, and ensure the reliability of each limiting part 14.

[0041] Preferably, the vertical cross-section of the limiting part 14 is an inclined or arc-shaped surface that runs from bottom to top and faces the inside of the annular air cavity 12. In this embodiment, the limiting part 14 is an inclined surface. In this way, the limiting part 14 is designed to be inclined towards the inside of the annular air cavity 12, so that the upper opening of the annular air cavity 12 is narrowed. The structure is simple and easy to process. At the same time, it can prevent the combustion plate 2 from falling out of the annular air cavity 12.

[0042] Furthermore, a clearance hole 16 facing the combustion plate 2 is provided at the connection between the inner ring wall 101 and the inner limiting part 14, and a clearance hole 16 facing the combustion plate 2 is provided at the connection between the outer ring wall 102 and the outer limiting part 14. The openings of the outer clearance hole 16 and the inner clearance hole 16 correspond to the outer and inner corners of the upper end of the combustion plate 2, respectively. In this way, the setting of clearance holes 16 has two advantages: first, it makes the thickness of the connection between the vertical edge of the step 15 and the limiting part 14 thinner, more flexible, and easier to process, and effectively ensures that no defects such as cracking occur at the connection of the limiting part 14 after processing; second, it can prevent the corners of the combustion plate 2 from being squeezed and deformed, thereby improving the overall integrity and aesthetics of the combustion plate 2.

[0043] Furthermore, the burner cap 1 is also provided with several horizontally arranged air channels 17. The air channels 17 are located below the combustion plate 2 and penetrate the inner ring wall 101 and the outer ring wall 102. The central through hole 11 connects to the air channels 17. In this way, by adding air channels 17, secondary air can be supplemented to the radial inner and / or outer sides of the combustion plate 2, so that the combustion of the combustion plate 2 is more stable and more complete.

[0044] In this embodiment, several air channels 17 are evenly arranged along the circumferential direction of the burner cap 1, and the air channels 17 divide the annular air chamber 12 into a lower part 121 and an upper part 122. The lower part 121 of the air channel 17 is located below the air channel 17 and is used to connect to the stove burner head. The upper part 122 of the air channel 17 is located below the air channel 17 and connects to the lower part of the air channel 17. The boss 13, the limiting part 14 and the step 15 are all provided in the upper part 122 of the air channel 17 so that the combustion plate 2 is stably and reliably installed in the upper part 122 of the air channel 17.

[0045] Preferably, the boss 13 is higher than the top surface of the air channel 17, so that when the combustion plate 2 abuts against the boss 13, the top surface of the combustion plate 2 and the air channel 17 have a channel for gas to pass through (not shown in the figure), ensuring that the gas is transmitted upward to the wall and can fill the channel first, and then transmitted upward to the combustion plate 2, ensuring that the gas transmitted to the combustion plate 2 is more evenly distributed and improving the uniformity of the combustion fire distribution.

[0046] Furthermore, a protruding edge 18 extending outward is provided on the outer surface of the burner cap 1. The protruding edge 18 is located below the air passage 17 and is integrally formed with the outer wall of the burner cap 1. In this way, the protruding edge 18 limits the installation of the burner cap 1 when it is connected to the stove burner head, and makes the installation of the burner cap 1 more stable.

[0047] Example 2

[0048] like Figure 4-10 As shown, this embodiment provides a method for preparing a combustion plate mounting structure, which includes the following steps:

[0049] S1: A blank flame cap 1 is cast using metal material. The flame cap 1 has at least a central through hole 11 and an annular air cavity 12 with openings at the top and bottom ends.

[0050] Specifically, using casting equipment, a stainless steel blank flame cap 1 is cast. The flame cap 1 has a central through hole 11 and an annular gas cavity 12 with openings at both the top and bottom. The blank flame cap 1 also has an air channel 17 and a raised edge 18. The air channel 17 divides the annular gas cavity 12 into a lower part 121 and an upper part 122 that are interconnected. Figure 5 As shown. However, the surface of the flame cap 1 is rough and uneven, requiring fine machining to achieve the desired assembly effect.

[0051] S2: Protrusions 13 are machined on the inner sides of the opposite two side walls of the annular gas chamber 12. The protrusions 13 are used to support the pre-formed combustion plate 2.

[0052] Specifically, such as Figure 6 As shown, steps 13 are machined into the inner sides of the opposite side walls of the upper part 122 of the annular gas cavity 12 according to the dimensions (i.e., height H1, inner diameter Φ1, and outer diameter Φ3). Specifically, steps 13 are machined into the upper outer side of the inner annular wall 101 and the upper inner side of the outer annular wall 102. The two steps 13 are used to support the radially inner and radially outer sides of the bottom surface of the combustion plate 2, respectively, and the area between the two steps 13 is the mounting cavity of the combustion plate 2. Of course, before or after machining the bosses 13, the outer surface of the burner cap 1 and the inner surfaces of the upper and lower parts of the annular gas cavity 12 can be precision machined to make the burner cap 1 meet the preset size requirements.

[0053] S3: A step 15 is machined on the upper inner end of the inner ring wall 101 and / or the upper outer end of the outer ring wall 102 of the annular air cavity 12;

[0054] Specifically, such as Figure 8-9 As shown, in this embodiment, steps 15 are machined on the upper inner side of the inner ring wall 101 and the upper outer side of the outer ring wall 102, respectively. Each step 15 consists of a horizontal edge 152 and a vertical edge 151. The vertical edge 151 has a height H2 of 1.5 mm, a thickness of approximately 0.9 mm, and a diameter Φ6. Therefore, by first machining the steps 15, the edge thickness near the upper opening of the annular air cavity 12 is reduced, increasing its flexibility and deformability, thus facilitating subsequent riveting processes.

[0055] More specifically, before or after machining the step 15, clearance holes 16 are machined on the upper outer side of the inner ring wall 101 and the upper inner side of the outer ring wall 102, respectively, to make the subsequent riveting process easier and to ensure that no defects such as cracking occur after riveting.

[0056] S4: Place the combustion plate 2 from top to bottom into the annular gas chamber 12 and abut against the boss 13;

[0057] S5: The beveled hob is used to machine and rivet along the step 15 and toward the inside of the annular gas cavity 12 to form a limiting part 14 for fixing the combustion plate 2.

[0058] Specifically, the bevel hob is mounted on the lathe and the burner cap 1 is clamped. Riveting begins, machining the vertical edge 151 along the step 15 and the clearance hole 16. Riveting proceeds outward from the inner vertical edge 151 (i.e., towards the inside of the annular gas chamber 12), and inward from the outer vertical edge 151, thus securing the inner combustion plate 2. Figure 10 As shown.

[0059] As can be seen, in the preparation method of this embodiment, the burner cap 1 is easy to process. By first processing the boss 13, the step 15, and the clearance hole 16, the combustion plate 2 is installed in the annular gas chamber 12. Finally, the vertical edge 151 of the step 15 is riveted to form a limiting part 14, thereby limiting the upper and lower positions of the combustion plate 2 and making the installation of the combustion plate 2 more stable and reliable. In addition, by processing the step 15 and the clearance hole 16 first, the vertical edge 151 of the step 15 is easier to rivet, and it ensures that no defects such as cracking occur after the vertical edge 151 is riveted to form the limiting part 14. It also ensures that the combustion plate 2 will not be deformed during the riveting process, which helps to improve the overall aesthetics and integrity of the product.

[0060] like Figure 5-7As shown, preferably, in step S2, before machining the boss 13, the outer surface of the blank flame cap 1 can be surface treated first, that is, the outer side of the outer ring wall 102 of the flame cap 1 can be precision machined to achieve the required outer diameter; then the inner surfaces of the upper and lower parts of the annular air cavity 12 are surface treated according to the preset dimensions (i.e. Φ2 and Φ4-5), so as to ensure that the dimensions of the annular air cavity 12 meet the requirements.

[0061] Of course, before machining the boss 13, the outer surface of the blank flame cap 1 can be surface treated first, and then the inner surface of the upper part 122 of the annular air cavity 12 can be surface treated according to the preset size (i.e. Φ2); and after machining the boss 13, the inner surface of the lower part 121 of the annular air cavity 12 can be surface treated according to the preset size (i.e. Φ4-5). In this way, by precision machining the flame cap 1 three times, it is easier to process and manufacture.

[0062] The above descriptions are merely some embodiments of the present invention. Those skilled in the art can make various modifications and improvements without departing from the inventive concept of the present invention, and these all fall within the scope of protection of the present invention.

Claims

1. A combustion plate mounting structure, characterized in that, include: The flame cap (1) has a central through hole (11) and an annular air cavity (12) with openings at the top and bottom. The annular air cavity (12) has protrusions (13) on the outer side of the inner annular wall (101) and the inner side of the outer annular wall (102). The upper inner end of the inner annular wall (101) and / or the upper outer end of the outer annular wall (102) are provided with steps (15) in the circumferential direction. The vertical edge of the step (15) is machined and riveted to form a limiting part (14) facing the inside of the annular air cavity (12). Combustion plate (2), the combustion plate (2) is installed in the annular gas chamber (12), and the combustion plate (2) is locked between the boss (13) and the limiting part (14); The limiting part (14) has a vertical cross-section that is an inclined or arc-shaped surface that runs from bottom to top and toward the interior of the annular air cavity (12); An air-avoiding hole (16) facing the combustion plate (2) is provided at the connection between the inner ring wall (101) and the inner limiting part (14), and an air-avoiding hole (16) facing the combustion plate (2) is provided at the connection between the outer ring wall (102) and the outer limiting part (14). The burner cap (1) is also provided with several horizontally arranged air channels (17). The air channels (17) are located below the combustion plate (2) and penetrate the inner ring wall (101) and the outer ring wall (102). The central through hole (11) connects to the air channels (17).

2. The combustion plate mounting structure according to claim 1, characterized in that, The corner of the combustion plate (2) corresponds to the opening arrangement of the vent hole (16).

3. The combustion plate mounting structure according to claim 1, characterized in that, The outer surface of the flame cap (1) is provided with an outwardly extending protruding edge (18), which is located below the air channel (17) and integrally formed with the outer side wall of the flame cap (1).

4. A method for preparing a combustion plate mounting structure, characterized in that, Includes the following steps: S1: A blank flame cap (1) is cast using metal material, the flame cap (1) having at least a central through hole (11) and an annular air cavity (12) with openings at the top and bottom ends; S2: Protrusions (13) are machined on the inner sides of the opposite side walls of the annular gas cavity (12), and the protrusions (13) are used to support the pre-formed combustion plate (2); S3: A step (15) is machined into the upper inner end of the inner ring wall (101) and / or the upper outer end of the outer ring wall (102) of the annular air cavity (12); S4: Place the combustion plate (2) from top to bottom into the annular gas cavity (12) and abut against the boss (13); S5: The beveled hob is used to machine and rivet along the step (15) and toward the inside of the annular air cavity (12) to form a limiting part (14) for fixing the combustion plate (2).

5. The preparation method according to claim 4, characterized in that, The vertical edge (151) of the step (15) has a height of 1.5 mm and a thickness of 0.9 mm.

6. The preparation method according to claim 4 or 5, characterized in that, Before or after the step (15) is machined, a clearance hole (16) is machined at the upper outer side of the inner ring wall (101) and / or the upper inner side of the outer ring wall (102).

7. The preparation method according to claim 4, characterized in that, Before the protruding boss (13) is installed, the outer surface of the fire cover (1) is surface treated, and then the inner surface of the annular air cavity (12) is surface treated according to the preset size. Alternatively, before the protruding boss (13) is installed, the outer surface of the fire cover (1) is surface treated, and then the inner surface of the upper part (122) of the annular air cavity (12) is surface treated according to the preset size. After the protruding boss (13) is installed, the inner surface of the lower part (121) of the annular air cavity (12) is surface treated according to the preset size.

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