Outer ring fire cover and combustor

Abstract

The utility model discloses an outer ring fire cover and a combustor, and relates to the technical field of cooking utensils. The outer ring fire cover comprises a fire cover body and a lower bottom plate, the fire cover body is integrally formed and is of an annular structure with the open lower end, the fire cover body comprises an annular top wall, the inner side edge of the annular top wall extends downwards to form an inner ring wall, and the outer side edge of the annular top wall extends downwards to form an outer ring wall; the outer ring wall is provided with a first annular seam and a second annular seam which extend in the circumferential direction of the outer ring fire cover, and therefore the manufacturing process and the internal structure of the outer ring fire cover with the annular seam fire outlet are simplified. The lower bottom plate is contained in the burner cap body, and the lower bottom plate and the burner cap body jointly define a gas mixing cavity, so that the outer ring burner cap is more convenient to assemble.

Description

Technical Field

[0001] The utility model relates to the technical field of stoves, in particular to an outer ring fire cover and a burner. Background Art

[0002] The existing annular seam type outer ring fire cover mostly adopts a combination of multiple structures to form the annular seam of the outer ring fire cover, and the overall structure is relatively complex. Each component used to form the annular seam needs to be produced separately and then assembled, the manufacturing process is complicated, the assembly process requirements are high, and more costs and manpower are consumed. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the defects of the prior art that the internal structure of the outer ring fire cover with annular gap fire is complicated, the manufacturing process is complicated, and the assembly process requires high requirements, and provide an outer ring fire cover and a burner.

[0004] The utility model solves the above technical problems through the following technical solutions:

[0005] The utility model provides an outer ring fire cover, which comprises a fire cover body and a lower bottom plate;

[0006] The fire cover body is an integrally formed annular structure with an open lower end, and the fire cover body includes an annular top wall, the inner edge of the annular top wall extends downward to form an inner annular wall, and the outer edge of the annular top wall extends downward to form an outer annular wall, and the outer annular wall is provided with a first annular slit and a second annular slit extending along the circumference of the outer ring fire cover, and the second annular slit is provided below the first annular slit;

[0007] The lower bottom plate is accommodated in the interior of the fire cover body and connected to the fire cover body, and a gas mixing cavity is formed between the lower bottom plate and the fire cover body. The lower bottom plate is provided with a plurality of air inlet holes, and both ends of the air inlet holes penetrate the lower bottom plate;

[0008] One end of the first annular slit and the second annular slit is communicated with the gas mixing chamber, and the other end of the first annular slit and the second annular slit is communicated with the external space of the fire cover body.

[0009] In this solution, the fire cover body of the outer ring fire cover is integrally formed to form the first annular seam and the second annular seam, which simplifies the manufacturing process and internal structure of the outer ring fire cover with fire coming out of the annular seam, reduces the difficulty of assembling the outer ring fire cover, and reduces the production cost. The lower bottom plate is accommodated inside the fire cover body and together with the fire cover body, forms a gas mixing chamber to accommodate the gas used for the combustion of the outer ring fire cover, thereby ensuring the stability of the flame of the outer ring fire cover.

[0010] Preferably, the fire cover body further comprises a plurality of spacers, the lower end of the annular top wall extends toward the interior of the fire cover body to form the spacers, the plurality of spacers are arranged at intervals along the circumference of the outer ring fire cover, and the gap between two adjacent spacers forms a fire transfer groove connecting the gas mixing chamber and the external space;

[0011] The outer annular wall further includes a spacer extending along the circumference of the outer annular fire cover, the spacer is located between the first annular slit and the second annular slit, and the spacer block connects the spacer and the annular top wall to form the first annular slit.

[0012] In this solution, the spacer blocks serve to connect the spacer portion and the annular top wall to form a first annular gap.

[0013] Preferably, the spacer block further comprises a connecting portion, a connecting hole is provided at the bottom of the connecting portion, and the connecting hole is connected to the lower base plate via a fastener.

[0014] In this solution, the connection hole of the connection part is used to insert a fastener, so that the lower base plate is connected to the fire cover body through the fastener, thereby ensuring a stable connection between the lower base plate and the fire cover body.

[0015] Preferably, the lower base plate is provided with a concave hole, the concave hole cooperates with the connecting hole, and the fastener passes through the concave hole and is connected with the connecting hole.

[0016] In this solution, the fastener penetrates the recessed hole and connects with the connecting hole, thereby connecting the lower base plate to the spacer of the fire cover body.

[0017] Preferably, the spacer is provided with a plurality of fire holes, one end of the fire hole is communicated with the gas mixing chamber, and the other end of the fire hole is communicated with the external space of the fire cover body;

[0018] The second annular slit is provided with a plurality of flame stabilizing holes along the circumferential direction, one end of the flame stabilizing hole is communicated with the gas mixing chamber, and the other end of the flame stabilizing hole is communicated with the external space of the fire cover body.

[0019] In this solution, the fire holes on the spacer block are used to generate flames and play a role in transferring fire in the first annular seam, and the flame stabilizing holes in the second annular seam play a better flame stabilizing role for the outer ring fire cover.

[0020] Preferably, an ignition channel is provided on the fire cover body, and the ignition channel extends radially along the outer ring fire cover. Both ends of the ignition channel are connected, one end of the ignition channel is connected to the first annular seam, and the other end of the ignition channel is connected to the radial inner side of the fire cover body.

[0021] In this solution, by providing an ignition channel, the fire of the inner ring fire cover can be transferred to the first annular gap to achieve combustion of the outer ring fire cover.

[0022] Preferably, a first limiting portion is provided on the inner wall surface of the outer annular wall, and the inner wall of the outer annular wall extends toward the interior of the fire cover body to form the first limiting portion; a second limiting portion is provided on the inner wall surface of the inner annular wall, and the inner wall of the inner annular wall extends toward the interior of the fire cover body to form the second limiting portion;

[0023] The upper surface of the lower bottom plate abuts against the lower surface of the first limiting portion and the lower surface of the second limiting portion at two ends in the radial direction of the outer ring fire cover, respectively.

[0024] In this solution, the first limiting portion and the second limiting portion can define the installation positions of the lower base plate and the fire cover body, thereby making the assembly of the lower base plate and the fire cover body more convenient.

[0025] Preferably, the outer annular wall extends downward to form a first supporting portion, and the first supporting portion is inclined from top to bottom toward the radial outer side of the outer annular wall.

[0026] In this solution, the first support portion is inclined from top to bottom toward the radially outer side of the outer ring wall. During the assembly of the fire cover, the lower base plate can be more conveniently installed on the fire cover body so that the lower base plate is accommodated inside the fire cover body.

[0027] Preferably, the outer ring fire cover further includes a plurality of second support portions, the lower end surface of the inner ring wall extends downward to form the second support portions, and the plurality of second support portions are arranged at intervals along the circumference of the outer ring fire cover.

[0028] In this solution, multiple second support parts are arranged at intervals along the circumference of the outer ring fire cover. The gaps between the multiple second support parts can facilitate air to flow into the bottom of the lower base plate, and then flow into the mixing chamber from the bottom of the lower base plate to ensure sufficient combustion.

[0029] The utility model also provides a burner, which comprises the above-mentioned outer ring fire cover.

[0030] The positive and progressive effects of the utility model are:

[0031] The utility model provides an outer ring fire cover and a burner, which include a fire cover body and a lower bottom plate. The fire cover body is an integrally formed annular structure with an open lower end. The fire cover body includes an annular top wall, the inner edge of the annular top wall extends downward to form an inner annular wall, and the outer edge of the annular top wall extends downward to form an outer annular wall. The outer annular wall is provided with a first annular slit and a second annular slit extending along the circumference of the outer ring fire cover, thereby simplifying the manufacturing process and internal structure of the outer ring fire cover with annular slit fire output; the lower bottom plate is accommodated in the interior of the fire cover body and together with the fire cover body, forms a gas mixing chamber, thereby making the assembly of the outer ring fire cover more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic structural diagram of an outer ring fire cover according to an embodiment of the utility model.

[0033] Figure 2 It is a schematic diagram of the bottom structure of the outer ring fire cover according to an embodiment of the utility model.

[0034] Figure 3 It is a top view of an outer ring fire cover according to an embodiment of the utility model.

[0035] Figure 4 For along Figure 3 Schematic diagram of the cross-sectional structure taken along line AA in FIG.

[0036] Figure 5 For along Figure 3 Schematic diagram of the cross-sectional structure taken along line BB in FIG.

[0037] Figure 6 It is a schematic structural diagram of a fire cover body according to an embodiment of the utility model.

[0038] Figure 7 It is a structural schematic diagram of a lower base plate according to an embodiment of the utility model.

[0039] Figure 8 It is a structural schematic diagram of a burner according to an embodiment of the utility model.

[0040] Description of reference numerals:

[0041] Outer ring fire cover 1

[0042] Fire cover body 2

[0043] Annular top wall 21

[0044] Outer ring wall 22

[0045] The first limiting portion 221

[0046] Spacer 222

[0047] Inner ring wall 23

[0048] The second limiting portion 231

[0049] First annular seam 24

[0050] Fire hole 241

[0051] Fire Transmission Slot 242

[0052] Second annular seam 25

[0053] Flame stabilizing hole 251

[0054] Spacer 26

[0055] Connection part 261

[0056] Connection hole 262

[0057] The first support portion 271

[0058] The second support portion 272

[0059] Lower base plate 3

[0060] Air Inlet 31

[0061] Concave hole 32

[0062] Fastener 33

[0063] Mixing chamber 4

[0064] Fire channel 5

[0065] Inner ring fire cover 9

[0066] Burner 10 DETAILED DESCRIPTION

[0067] The present invention is further described below by way of embodiments, but the present invention is not limited to the scope of the embodiments.

[0068] like Figure 1-Figure 3 and Figure 8 As shown, the utility model provides a burner 10, including an outer ring fire cover 1, the outer ring fire cover 1 includes a fire cover body 2 and a lower bottom plate 3, the fire cover body 2 is an integrally formed annular structure with an open lower end, the lower bottom plate 3 is accommodated inside the fire cover body 2 and connected to the fire cover body 2, and a mixing chamber 4 is enclosed between the lower bottom plate 3 and the fire cover body 2.

[0069] Specifically, Figure 1 As shown, the fire cover body 2 includes an annular top wall 21, an inner annular wall 23 and an outer annular wall 22. The inner edge of the annular top wall 21 extends downward to form the inner annular wall 23, and the outer edge of the annular top wall 21 extends downward to form the outer annular wall 22. The outer annular wall 22 is provided with a first annular slit 24 and a second annular slit 25 extending along the circumference of the outer ring fire cover 1. The second annular slit 25 is provided below the first annular slit 24, and the lower bottom plate 3 is located below the second annular slit 25. One end of the first annular slit 24 and the second annular slit 25 is connected to the gas mixing chamber 4, and the other end of the first annular slit 24 and the second annular slit 25 is connected to the external space of the fire cover body 2, so that the gas in the gas mixing chamber 4 can flow out to the external space of the outer ring fire cover 1 for combustion.

[0070] In this embodiment, the fire cover body 2 of the outer ring fire cover 1 is integrally formed to form the first annular seam 24 and the second annular seam 25, without the need to form the annular seam through a combination of multiple parts, thereby simplifying the manufacturing process and internal structure of the outer ring fire cover 1 with annular seam fire, reducing the difficulty of assembling the outer ring fire cover 1, and reducing the production cost. The lower base plate 3 is accommodated in the interior of the fire cover body 2 and together with the fire cover body 2, forms a gas mixing chamber 4 to accommodate the gas used for the combustion of the outer ring fire cover 1 and ensure the stability of the flame of the outer ring fire cover 1.

[0071] like Figure 7 As shown, the lower bottom plate 3 is provided with a plurality of air inlet holes 31, and both ends of the air inlet holes 31 penetrate the lower bottom plate 3, so that the gas below the lower bottom plate 3 can flow into the gas mixing chamber 4 through the air inlet holes 31. In this embodiment, the air inlet holes 31 are strip-shaped. In other alternative embodiments, other shapes of air inlet holes 31 that are considered appropriate by those skilled in the art can also be selected. By setting the strip-shaped air inlet holes 31, the flow rate of the gas flowing from the lower bottom plate 3 into the gas mixing chamber 4 can be slowed down, so that the combustion of the gas is more stable, which plays a role in stabilizing the flame.

[0072] like Figure 6 The fire cover body 2 is shown as a perspective from bottom to top, showing the internal structure of the fire cover body 2. The fire cover body 2 also includes a plurality of spacer blocks 26. The lower end of the annular top wall 21 extends toward the interior of the fire cover body 2 to form the spacer blocks 26. The plurality of spacer blocks 26 are arranged at intervals along the circumference of the outer ring fire cover 1. The gap between two adjacent spacer blocks 26 forms a fire transfer groove 242 that connects the mixing chamber 4 and the external space.

[0073] The spacer 26 also includes a connecting portion 261, and a connecting hole 262 is provided at the bottom of the connecting portion 261. The connecting hole 262 is connected to the lower bottom plate 3 through a fastener 33 to ensure a stable connection between the lower bottom plate and the fire cover body. The lower bottom plate 3 is provided with a concave hole 32, and the concave hole 32 cooperates with the connecting hole 262. The fastener 33 penetrates the concave hole 32 and connects with the connecting hole 262, thereby connecting the lower bottom plate 3 to the fire cover body 2. Figure 5 As shown, in this embodiment, the fastener 33 is a bolt, which passes through the concave hole 32 of the lower base plate 3 from bottom to top and is inserted into the connecting hole 262 of the connecting portion 261, thereby connecting the lower base plate 3 to the fire cover body 2. In other alternative embodiments, other connection methods of the lower base plate 3 and the fire cover body 2 that are considered appropriate by those skilled in the art may also be selected.

[0074] like Figure 4 As shown, the outer ring wall 22 further includes a spacer 222 extending along the circumference of the outer ring fire cover 1, the spacer 222 is located between the first annular slit 24 and the second annular slit 25, and the spacer 26 connects the spacer 222 and the annular top wall 21 to form the first annular slit 24. The spacer 26 is provided to connect the spacer 222 and the annular top wall 21 to form the first annular slit 24.

[0075] The partition block 26 is also provided with a plurality of fire holes 241, one end of which is in communication with the gas mixing chamber 4, and the other end of which is in communication with the external space of the fire cover body 2. The fire holes 241 on the partition block 26 are used to generate flames and play a role in transferring fire in the first annular gap 24. The fire transfer grooves 242 between adjacent partition blocks 26 can emit fire in an annular shape, and the fire holes 241 and the fire transfer grooves 242 together form the fire output of the first annular gap 24. The second annular gap 25 is provided with a plurality of flame stabilizing holes 251 along the circumferential direction, one end of which is in communication with the gas mixing chamber 4, and the other end of which is in communication with the external space of the fire cover body 2. The flame stabilizing holes 251 of the second annular gap 25 play a better flame stabilizing role on the outer ring fire cover 1.

[0076] like Figure 5 As shown, a first limiting portion 221 is provided on the inner wall surface of the outer ring wall 22, and the inner wall of the outer ring wall 22 extends toward the inside of the fire cover body 2 to form the first limiting portion 221; a second limiting portion 231 is provided on the inner wall surface of the inner ring wall 23, and the inner wall of the inner ring wall 23 extends toward the inside of the fire cover body 2 to form the second limiting portion 231. The upper surface of the lower base plate 3 is respectively abutted against the lower surface of the first limiting portion 221 and the lower surface of the second limiting portion 231 at both ends in the radial direction of the outer ring fire cover 1. The first limiting portion 221 and the second limiting portion 231 can limit the installation position of the lower base plate 3 and the fire cover body 2, thereby making the assembly of the lower base plate 3 and the fire cover body 2 more convenient.

[0077] like Figure 4 As shown, the outer annular wall 22 extends downward to form a first support portion 271, and the first support portion 271 is inclined from top to bottom toward the radially outer side of the outer annular wall 22. By setting it to be inclined toward the outer side, during the assembly process of the fire cover, the lower base plate 3 can be more conveniently installed on the fire cover body 2, so that the lower base plate 3 is accommodated inside the fire cover body 2.

[0078] The outer ring fire cover 1 also includes a plurality of second support portions 272. The lower end surface of the inner ring wall 23 extends downward to form the second support portion 272. The plurality of second support portions 272 are arranged at intervals along the circumference of the outer ring fire cover 1. The gaps between the plurality of second support portions 272 can be used for gas to flow in, so that air can flow into the bottom of the lower base plate 3, and then flow into the mixing chamber 4 from the bottom of the lower base plate 3, and then flow out of the mixing chamber 4 for combustion.

[0079] The fire cover body 2 is provided with an ignition channel 5, which extends radially along the outer ring fire cover 1, and both ends of the ignition channel 5 are connected, one end of the ignition channel 5 is connected to the first annular slit 24, and the other end of the ignition channel 5 is connected to the radial inner side of the fire cover body 2. By providing the ignition channel 5, the fire of the inner ring fire cover 9 can be transferred to the first annular slit 24, so that the outer ring fire cover 1 can be burned.

[0080] In the description of the present invention, it is necessary to understand that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. indicate the orientation or positional relationship of the device or component in normal use, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operate in a specific orientation at any time, and therefore cannot be understood as a limitation on the present invention in this regard.

[0081] Although the specific implementations of the utility model are described above, those skilled in the art should understand that this is only an example, and the protection scope of the utility model is defined by the attached claims. Those skilled in the art can make various changes or modifications to these implementations without departing from the principle and essence of the utility model, but these changes and modifications fall within the protection scope of the utility model.

Claims

1. An outer ring fire cover, characterized in that: It includes a fire cover body and a lower base plate; The fire cover body is an integrally formed annular structure with an open lower end, and the fire cover body includes an annular top wall, the inner edge of the annular top wall extends downward to form an inner annular wall, and the outer edge of the annular top wall extends downward to form an outer annular wall, and the outer annular wall is provided with a first annular slit and a second annular slit extending along the circumference of the outer ring fire cover, and the second annular slit is provided below the first annular slit; The lower bottom plate is accommodated in the interior of the fire cover body and connected to the fire cover body, and a gas mixing cavity is formed between the lower bottom plate and the fire cover body. The lower bottom plate is provided with a plurality of air inlet holes, and both ends of the air inlet holes penetrate the lower bottom plate; One end of the first annular slit and the second annular slit is communicated with the gas mixing chamber, and the other end of the first annular slit and the second annular slit is communicated with the external space of the fire cover body.

2. The outer ring fire cover according to claim 1, characterized in that: The fire cover body also includes a plurality of spacers, the lower end of the annular top wall extends toward the interior of the fire cover body to form the spacers, the plurality of spacers are arranged at intervals along the circumference of the outer ring fire cover, and the gap between two adjacent spacers forms a fire transfer groove connecting the gas mixing chamber and the external space; The outer annular wall further includes a spacer extending along the circumference of the outer annular fire cover, the spacer is located between the first annular slit and the second annular slit, and the spacer block connects the spacer and the annular top wall to form the first annular slit.

3. The outer ring fire cover according to claim 2, characterized in that: The spacer block also includes a connecting portion, a connecting hole is provided at the bottom of the connecting portion, and the connecting hole is connected to the lower base plate through a fastener.

4. The outer ring fire cover according to claim 3, characterized in that: The lower bottom plate is provided with a concave hole, the concave hole cooperates with the connecting hole, and the fastener passes through the concave hole and is connected with the connecting hole.

5. The outer ring fire cover according to claim 4, characterized in that: The partition block is provided with a plurality of fire holes, one end of the fire hole is communicated with the gas mixing chamber, and the other end of the fire hole is communicated with the external space of the fire cover body; The second annular slit is provided with a plurality of flame stabilizing holes along the circumferential direction, one end of the flame stabilizing hole is communicated with the gas mixing chamber, and the other end of the flame stabilizing hole is communicated with the external space of the fire cover body.

6. The outer ring fire cover according to claim 5, characterized in that: The fire cover body is provided with an ignition channel, which extends radially along the outer ring fire cover. Both ends of the ignition channel are connected, one end of the ignition channel is connected to the first annular seam, and the other end of the ignition channel is connected to the radial inner side of the fire cover body.

7. The outer ring fire cover according to claim 1, characterized in that: A first limiting portion is provided on the inner wall surface of the outer annular wall, and the inner wall of the outer annular wall extends toward the interior of the fire cover body to form the first limiting portion; a second limiting portion is provided on the inner wall surface of the inner annular wall, and the inner wall of the inner annular wall extends toward the interior of the fire cover body to form the second limiting portion; The upper surface of the lower bottom plate abuts against the lower surface of the first limiting portion and the lower surface of the second limiting portion at two ends in the radial direction of the outer ring fire cover, respectively.

8. The outer ring fire cover according to claim 1, characterized in that: The outer annular wall extends downward to form a first supporting portion, and the first supporting portion is inclined from top to bottom toward the radial outer side of the outer annular wall.

9. The outer ring fire cover according to claim 7, characterized in that: The outer ring fire cover also includes a plurality of second support portions. The lower end surface of the inner ring wall extends downward to form the second support portions. The plurality of second support portions are arranged at intervals along the circumference of the outer ring fire cover.

10. A burner, characterized in that: It comprises the outer ring fire cover as described in any one of claims 1-9.

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