Inner burner cap, outer-ring burner cap, and cooktop burner

Abstract

An inner burner cap, an outer-ring burner cap, and a cooktop burner. The inner burner cap comprises a cover plate, a cylindrical part, and an external interface arranged at the lower end of the cylindrical part, a radial gas outlet hole and an annular combustion groove are formed in the cylindrical part, and the radial gas outlet hole is communicated with the annular combustion groove. The outer-ring burner cap comprises an annular top plate, an inner-ring wall plate, and an outer-ring wall plate, and the annular top plate, the inner-ring wall plate, and the outer-ring wall plate define an outer-ring gas cavity. An inner annular combustion groove is formed in the inner-ring wall plate, an outer annular combustion groove is formed in the outer-ring wall plate, and the inner annular combustion groove and the outer annular combustion groove are communicated with the outer-ring gas cavity. The gas flow is large, the power is high, and flames are annularly distributed and connected together, thereby effectively preventing generation of flying flames and flame flickering.

Description

Inner fire cover, outer ring fire cover and stove burner Technical Field

[0001] The utility model relates to a stove burner. Background Art

[0002] The current existing technology, Chinese patent 202121054759.X, describes a low heat transfer burner, comprising an outer ring fire cover seat, on which an outer ring fire cover is provided; a central fire cover seat, on which a central fire cover is provided; and an ejector tube assembly for supplying air to the outer ring fire cover seat and the central fire cover seat; the outer ring fire cover seat and the central fire cover seat are assembled to a positioning plate mounted with the ejector tube assembly via a connector assembly, enabling rapid assembly of the burner while reducing heat transfer; the central fire cover and the outer ring fire cover are respectively provided in the central combustion hole and the outer ring combustion hole. Problems exist: flying fire is easily generated, and the flame is shaken by the influence of external wind.

[0003] Utility Model Content

[0004] The purpose of the utility model is to provide an inner fire cover which has the characteristics of high power and preventing flying fire and flame shaking.

[0005] The utility model is implemented as follows: an inner fire cover, which is special in that it includes a cover plate, a circular cylindrical body and an external interface arranged at the lower end of the circular cylindrical body, the circular cylindrical body is provided with radial air outlet holes and annular combustion grooves, and the radial air outlet holes and the annular combustion grooves are connected.

[0006] The special feature of the inner fire cover is that it also includes axial ribs, which are arranged on the inner surface of the circular cylindrical portion, and the radial inner side of the annular combustion groove between two adjacent axial ribs constitutes a radial air outlet.

[0007] The special feature of the inner fire cover is that it also includes radial ribs, which are arranged on the radial inner side of the annular combustion groove, and the gap between two adjacent radial ribs constitutes the radial air outlet.

[0008] The special feature of the inner fire cover is that the diameter of the cylindrical body is smaller than the diameter of the cover plate.

[0009] Another object of the present invention is to provide an outer ring fire cover which has the characteristics of high power and preventing flying fire and flame shaking.

[0010] An outer ring fire cover is special in that it comprises a circular top plate, an inner ring wall plate and an outer ring wall plate, which form an outer ring combustion chamber.

[0011] An inner annular combustion groove is provided on the inner annular wall plate, an outer annular combustion groove is provided on the outer annular wall plate, and the inner annular combustion groove and the outer annular combustion groove are communicated with the outer annular combustion chamber.

[0012] The special feature of the outer ring fire cover is that it also includes a plurality of radial partition plates, and the outer ring gas cavity between two adjacent radial partition plates constitutes a sub-gas cavity, which is respectively connected to the inner ring combustion groove and the outer ring combustion groove.

[0013] The outer ring fire cover is special in that: a plurality of inner radial partitions are provided on the radial outer side of the inner ring combustion groove, and the inner ring combustion groove between two adjacent inner radial partitions constitutes an inner ring air inlet;

[0014] A plurality of outer radial partitions are provided on the radial inner side of the outer annular combustion groove, and the outer annular combustion groove between two adjacent outer radial partitions constitutes an outer annular air inlet.

[0015] A stove burner is special in that it comprises the inner fire cover and the outer ring fire cover as described above.

[0016] The utility model provides an inner fire cover and an outer ring fire cover, with large gas flow and power, and flames distributed in a circular shape and connected together, thereby effectively preventing flying fire and flame shaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] FIG1 is one of the three-dimensional views of the inner fire cover of the present invention.

[0018] FIG2 is a second perspective view of the inner fire cover of the present invention.

[0019] FIG3 is a cross-sectional view of the inner fire cover of the present invention.

[0020] FIG. 4 is an AA view of FIG. 3 .

[0021] FIG5 is a cross-sectional view of another embodiment of the inner fire cover of the present invention.

[0022] FIG6 is a perspective view of the outer ring fire cover of the present invention.

[0023] FIG7 is a cross-sectional view of the outer ring fire cover of the present invention.

[0024] FIG8 is a BB view of FIG7.

[0025] FIG9 is a cross-sectional view of another embodiment of the outer ring fire cover of the present invention.

[0026] FIG10 is a top view of the burner of the present invention.

[0027] FIG11 is a view taken along line C-C in FIG10 .

[0028] FIG12 is a DD view of FIG10.

[0029] FIG. 13 is a view taken along line EE of FIG. 10 .

[0030] FIG14 is one of the three-dimensional exploded views of the burner of the present invention.

[0031] FIG15 is a second exploded perspective view of the burner of the present invention. DETAILED DESCRIPTION

[0032] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0033] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0034] Example 1

[0035] As shown in Figures 1, 2, and 3, an inner fire cover 1 includes a cover plate 11, a circular cylindrical portion 12, and an outer interface 13 provided at the lower end of the cylindrical portion 12. The cylindrical portion 12 is provided with radial air outlets 131 and an annular combustion groove 132. The radial air outlets 131 and the annular combustion groove 132 are connected. With this structure, the combustion gas in the annular combustion groove 132 is connected together, effectively preventing flying fire and flame swaying.

[0036] As shown in FIG4 , it also includes axial ribs 14 , four of which are evenly distributed along the circumference, and more than five axial ribs can also be provided; the axial ribs 14 are provided on the inner surface of the circular cylindrical portion 12 , and the radial inner side of the annular combustion groove 132 between two adjacent axial ribs 14 constitutes a radial air outlet.

[0037] As shown in FIG. 5 , this embodiment can also be implemented as follows: the embodiment further includes radial ribs 15 , and the radial ribs 15 are provided with an annular combustion groove 132 on the radial inner side, and the annular combustion groove 132 between two adjacent radial ribs 14 constitutes the radial air outlet 131 .

[0038] The diameter of the cylindrical body portion 12 is smaller than the diameter of the cover plate 11 .

[0039] Example 2

[0040] As shown in Figures 6, 7 and 8, an outer ring fire cover 2 includes a circular top plate 21, an inner ring wall plate 22 and an outer ring wall plate 23. The circular top plate 21, the inner ring wall plate 22 and the outer ring wall plate 23 constitute an outer ring gas chamber 24.

[0041] An inner annular combustion groove 221 is provided on the inner annular wall plate 22 , and an outer annular combustion groove 231 is provided on the outer annular wall plate 23 . The inner annular combustion groove 221 and the outer annular combustion groove 231 are in communication with the outer annular combustion chamber 24 .

[0042] As shown in Figures 6 and 8, it also includes several radial partition plates 25, the two ends of which are respectively connected to the inner ring wall plate 22 and the outer ring wall plate 23. The outer ring combustion chamber 24 between two adjacent radial partition plates 25 constitutes a sub-combustion chamber 251, and the sub-combustion chamber 251 is respectively connected to the inner annular combustion groove 221 and the outer annular combustion groove 231.

[0043] As shown in FIG9 , this embodiment can also be implemented as follows: a plurality of inner radial baffles 222 are provided on the radially outer side of the inner annular combustion groove 221 , and the inner annular combustion groove 221 between two adjacent inner radial baffles 222 constitutes an inner annular air inlet hole;

[0044] A plurality of outer radial partitions 232 are provided on the radial inner side of the outer annular combustion groove 231 , and the outer annular combustion groove 231 between two adjacent outer radial partitions 232 constitutes an outer annular air inlet.

[0045] Example 3

[0046] As shown in Figures 10 and 11, a top-inlet stove burner includes a burner head 3, a fire distributor seat 4, the inner fire cover 1 as described above, and the outer ring fire cover 2 as described above.

[0047] The burner 3 includes a base plate 31, a nozzle base 321 and an air intake base 322 provided at the front end of the base plate, a lower front support base 33 with a front opening and an upper opening, a rear support base 34, an ignition pinhole 351, and a sensing pinhole 352. The nozzle base 321 and the air intake base 322 are in a vertical straight line, and the air intake base 322 is provided with an air intake interface 3221. The rear wall plate of the front lower support base 33 is provided with a front slot 331 with an upper opening, and the rear support base 34 is provided with a middle rear slot 341, a rear left slot 342, and a rear right slot 343. The rear left slot 342 has an upper opening and a left opening, and the rear right slot 343 has an upper opening and a right opening, respectively.

[0048] The igniter seat 4 includes an inner fire cover seat 41, an outer ring gas groove 42, a rear air guide cavity 43, an ejector pipe 44, two radial gas channels 45 arranged in the left and right directions, four axial secondary air channels 46, a front upper support seat 47 with a front opening and a lower opening, and a rear latch 48. The air inlet end of the ejector pipe 44 intersects with the front upper support seat 47, and the front upper support seat 47 is provided with a front latch 441; the rear latch 48 is provided on both sides of the rear air guide cavity 43; the ejector pipe 44, the rear air guide cavity 43, and the outer ring gas groove 42 are connected in sequence, and the radial gas channel 45 connects the inner fire cover seat 41 and the outer ring gas groove 42; the gas enters the ejector pipe 44 through the nozzle of the nozzle seat 321, enters the outer ring gas groove 42 through the rear air guide cavity 43, and the gas flows in the outer ring gas groove 42 in the clockwise and counterclockwise directions; at the same time, the gas enters the inner fire cover seat 41 through the radial gas channel 45;

[0049] The front lower support seat 33 supports the front upper support seat 47. The front latch 441 engages with the front slot 331. The rear air guide cavity 43 engages with the middle rear slot 341 on the rear support seat 34. One rear latch 48 engages with the rear left slot 342, and the other rear latch 48 engages with the rear right slot 343. The ignition pinhole 351 and the sensing pinhole 352 each correspond to an axial secondary air passage. This structure prevents the igniter seat 4 from moving forward, backward, and left and right relative to the burner 3. The air inlet end of the ejector tube 44 and the nozzle seat 321 are located in the front cavity formed by the front lower support seat 33 and the front upper support seat 47, preventing wind interference.

[0050] As a further improvement of this embodiment, two support column seats 311 are provided on the base plate 31, and two support columns 49 are provided on the ignition distributor seat 4. The support column seats 311 support and cooperate with the support columns 49 to prevent the ignition distributor seat 4 from shaking left and right relative to the burner head 3.

[0051] The inner fire cover of Example 1 and the outer ring fire cover of Example 2 are used in Chinese patent 202121054759.X, a low heat transfer burner, to replace its central fire cover and outer ring fire cover.

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

Claims

1. An inner fire cover, characterized in that: It comprises a cover plate, a circular cylinder part and an external interface arranged at the lower end of the circular cylinder part. The circular cylinder part is provided with radial air outlet holes and an annular combustion groove, and the radial air outlet holes and the annular combustion groove are communicated.

2. An inner fire cover according to claim 1, characterized in that: It also includes axial ribs, which are arranged on the inner surface of the circular cylinder portion, and the radial inner side of the annular combustion groove between two adjacent axial ribs forms a radial air outlet.

3. The inner fire cover according to claim 1, characterized in that: The invention also includes radial ribs, which are provided on the radial inner side of the annular combustion grooves, and the annular combustion grooves between two adjacent radial ribs constitute the radial air outlet holes.

4. An inner fire cover according to claim 1, 2 or 3, characterized in that: The diameter of the cylindrical body portion is smaller than the diameter of the cover plate.

5. An outer ring fire cover, characterized in that: It includes a circular ring top plate, an inner ring wall plate and an outer ring wall plate, which form an outer ring combustion chamber. An inner ring wall plate is provided with an inner ring combustion groove, and an outer ring combustion groove is provided with an outer ring wall plate. The inner ring combustion groove and the outer ring combustion groove are communicated with the outer ring fuel gas cavity.

6. The outer ring fire cover according to claim 5, characterized in that: It also includes a plurality of radial partition plates, and the outer ring combustion chamber between two adjacent radial partition plates constitutes a sub-combustion chamber, and the sub-combustion chamber is respectively connected to the inner ring combustion groove and the outer ring combustion groove.

7. The outer ring fire cover according to claim 5, characterized in that: A plurality of inner radial baffles are provided on the radial outer side of the inner annular combustion groove, and the inner annular combustion groove between two adjacent inner radial baffles constitutes an inner annular air inlet hole; A plurality of outer radial partitions are arranged on the radial inner side of the outer annular combustion groove, and the outer annular combustion groove between two adjacent outer radial partitions constitutes an outer annular air inlet hole.

8. A stove burner, characterized in that: It comprises the inner fire cover as described in any one of claims 1-4 and the outer ring fire cover as described in any one of claims 5-7.

Images