Stove burner

Abstract

A stove burner comprises a furnace end, an inner annular fire cover, an outer annular fire cover, an ignition needle and an induction needle, and the furnace end comprises a circular base plate, a central annular gas groove, a central axial gas channel, an ignition needle mounting hole, an induction needle mounting hole, a central injection pipe, an outer annular gas groove, an axial gas channel and an outer injection pipe. A pair of radial gas grooves and arc-shaped grooves communicated with the radial gas grooves are formed in an outer ring wall plate of the central annular gas groove; a top plate of the inner annular fire cover is in an inverted cone frustum shape and provided with combustion holes, and two sets of pressure relief ignition holes are formed in the outer annular wall plate. The central annular fuel gas groove is inserted into the inner annular fire cover, the group of pressure relief ignition holes are opposite to the radial gas groove and the arc-shaped groove, and the ignition needle and the induction needle respectively correspond to the group of pressure relief ignition holes. A radial gas groove and an arc-shaped groove are formed in the central annular gas groove and correspond to a pressure relief ignition needle on the inner annular fire cover, so that the pressure of a cavity is reduced, the success rate during ignition is high, and detonation can be prevented; when fire is turned off, flash burning can be prevented.

Description

Technical Field

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

[0002] The current state of the art, according to Chinese Patent No. 202110110402.7, relates to a stove burner and a gas stove. The gas stove includes a stove burner, a burner head, and an outer ring fire cover and a center fire cover connected thereto. The burner head is provided with a first gas channel and a second gas channel. The outer ring fire cover is provided with an outer ring hole group connected to the first gas channel. The outer ring hole group includes a plurality of outer ring air outlet holes, which are evenly spaced and spirally arranged along the circumference of the outer ring fire cover. The center fire cover is located inside the ring formed by the outer ring fire covers. An annular groove for air entry is provided between the center fire cover and the outer ring fire cover. The center fire cover is provided with a first hole group connected to the second gas channel. The first hole group includes a plurality of first air outlet holes, which are evenly spaced and spirally arranged along the circumference of the center fire cover. Problems exist: the engagement of the center fire cover with the second gas channel results in high internal gas pressure, making deflagration prone during ignition and resulting in a low ignition success rate; and flashover occurs when the flame is turned off. Utility Model Content

[0003] The purpose of the utility model is to provide a stove burner which has the characteristics of high ignition success rate and elimination of explosion hidden dangers.

[0004] The utility model is realized as follows: a stove burner, which is special in that it includes a burner head, an inner annular fire cover, an outer annular fire cover, an ignition needle and an induction needle,

[0005] The burner head includes a circular base plate, a central annular gas groove, a central axial gas channel, an ignition pin mounting hole, an induction pin mounting hole, a central ejector pipe, an outer ring gas groove, an axial gas channel and an outer ejector pipe. The central axial gas channel is connected to the circular base plate and the bottom plate of the central annular gas groove. A pair of radial gas grooves and arc-shaped grooves connected thereto are provided on the outer ring wall of the central annular gas groove.

[0006] The inner annular fire cover is hollow with a lower opening, the top plate is in the shape of an inverted frustum, and the outer ring wall is provided with two groups of pressure relief ignition holes;

[0007] The central annular gas groove is inserted into the inner annular fire cover, a group of pressure relief ignition holes are opposite to the radial gas groove and the arc groove, and the ignition needle and the induction needle respectively correspond to the group of pressure relief ignition holes.

[0008] Preferably, the group of pressure relief ignition holes is composed of at least two radial circular holes, and the radial circular holes are opposite to the radial air groove and the arc-shaped groove.

[0009] Preferably, an ignition hole is further provided on the inner annular fire cover, the ignition hole comprises a radial portion provided on the top plate and an axial portion provided on the outer annular wall plate, and the axial portion extends between two adjacent pressure relief ignition holes.

[0010] Preferably, the pair of radial air grooves and the arc-shaped grooves connected thereto are on a diameter line in a left-right direction.

[0011] Preferably, the central axial airway is arc-shaped and is located at the front.

[0012] The utility model relates to a stove burner. Radial gas grooves and arc-shaped grooves are provided on a central annular gas groove and correspond to a pressure relief ignition pin on an inner annular fire cover, thereby reducing the pressure of the cavity, achieving a high success rate in ignition and preventing deflagration; and preventing flashover when the fire is turned off. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a cross-sectional view of the present utility model.

[0014] Figure 2 yes Figure 1 A-A view of.

[0015] Figure 3 It is a three-dimensional sectional view of the present utility model.

[0016] Figure 4 This is one of the three-dimensional exploded views of the present invention.

[0017] Figure 5 This is the second three-dimensional exploded view of the present invention.

[0018] Figure 6 This is the third exploded view of the present invention.

[0019] Figure 7 It is a three-dimensional cross-sectional view of the burner head of the present invention. DETAILED DESCRIPTION

[0020] 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.

[0021] 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.

[0022] like Figure 1 、 Figure 2 As shown, a stove burner includes a burner head 1, an inner ring fire cover 2, an outer ring fire cover 3, an ignition needle (not shown in the figure) and an induction needle.

[0023] The burner head 1 includes a circular base plate 10, a central annular gas groove 11, a central axial gas channel 12, an ignition needle mounting hole 131, a fire needle mounting hole 132, a central ejector pipe 14, an outer ring gas groove 15, an axial gas channel 16 and an outer ejector pipe 17. The central axial gas channel 12 is connected to the circular base plate 10 and the central annular gas groove 11. The gap between the central annular gas groove 11 and the circular base plate constitutes an inner radial secondary air channel. A pair of radial gas grooves 111 and a circular arc connected thereto are provided on the outer ring wall of the central annular gas groove 11. shaped groove 112, the arc-shaped groove 112 is provided on the outer surface of the outer ring wall plate, the radial gas groove 111 intersects and is connected with one end of the arc-shaped groove; the central ejector pipe 14, the central premixing chamber 141, the central axial gas channel 12 and the central annular gas groove 11 are connected in sequence; the axial gas channel 16 is connected to the circular base plate and the outer ring gas groove 15, and the gap between the bottom plate of the outer ring gas groove 15 and the circular base plate 10 is the outer radial secondary gas air channel; the outer ejector pipe 17, the outer premixing chamber 171, the axial gas channel 16 and the outer ring gas groove 15 are connected in sequence;

[0024] The inner annular fire cover 2 is hollow and annular with a lower opening, the top plate 21 is in the shape of an inverted frustum and provided with a combustion hole, and the outer ring wall is provided with two sets of pressure relief ignition holes 22. With this design, liquid overflowing from the pot falls on the top plate 21, then enters the axial hole 23 of the inner annular fire cover 2, then enters the axial hole of the central annular gas groove 11, and finally falls on the circular base plate 10. Since the outer ring wall of the inner annular fire cover 2 is cylindrical, and the pressure relief ignition holes 22 are radially arranged with their axes parallel to the horizontal plane, liquid is prevented from entering the pressure relief ignition holes 22 and clogging them, ensuring smooth ignition.

[0025] The central annular gas groove 11 is inserted into the inner annular fire cover 2. A set of pressure relief ignition holes 22 are opposite the radial gas grooves 111 and the arc-shaped grooves 112. The ignition needle and the sensing needle correspond to the set of pressure relief ignition holes 22. The set of pressure relief ignition holes 22 cooperates with the radial gas grooves 111 and the arc-shaped grooves 112 to reduce the pressure in the inner cavity, preventing deflagration and flashover when the flame is turned off.

[0026] As a further improvement of the present invention, the group of pressure relief ignition holes 22 is composed of at least two radial circular holes 221 , and the radial circular holes 221 are opposite to the radial gas groove 111 and the arc-shaped groove 112 .

[0027] The inner annular fire cover 2 is also provided with an ignition hole, which includes a radial portion 241 provided on the top plate and an axial portion 242 provided on the outer ring wall plate, the axial portion extending between two adjacent pressure relief ignition holes. With such a structure, rapid ignition is achieved.

[0028] The pair of radial air grooves 111 and the arc-shaped grooves 112 communicating therewith are on a diameter line in the left-right direction.

[0029] like Figure 7 As shown, the central axial airway 12 is arc-shaped and is located at the front.

[0030] 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. A stove burner, characterized in that: It includes a burner head, an inner ring fire cover, an outer ring fire cover, an ignition needle and an induction needle. The burner head includes a circular base plate, a central annular gas groove, a central axial gas channel, an ignition needle mounting hole, an induction needle mounting hole, a central ejector pipe, an outer ring gas groove, an axial gas channel and an outer ejector pipe. The central axial gas channel is connected to the circular base plate and the bottom plate of the central annular gas groove. A pair of radial gas grooves and arc-shaped grooves connected thereto are provided on the outer ring wall plate of the central annular gas groove. The inner ring fire cover is hollow and circular with a lower opening, the top plate is in the shape of an inverted frustum and is provided with a combustion hole, and the outer ring wall plate is provided with two groups of pressure relief ignition holes; The central annular gas groove is inserted into the inner annular fire cover, a group of pressure relief ignition holes are opposite to the radial gas groove and the arc groove, and the ignition needle and the induction needle correspond to the group of pressure relief ignition holes respectively.

2. A stove burner according to claim 1, characterized in that: The group of pressure relief ignition holes is composed of at least two radial circular holes, and the radial circular holes are opposite to the radial air grooves and the arc-shaped grooves.

3. A stove burner according to claim 1, characterized in that: The inner annular fire cover is also provided with an ignition hole, which comprises a radial portion arranged on the top plate and an axial portion arranged on the outer annular wall plate, and the axial portion extends between two adjacent pressure relief ignition holes.

4. A stove burner according to claim 1, characterized in that: The pair of radial air grooves and the arc-shaped grooves connected thereto are on a diameter line in a left-right direction.

5. A stove burner according to claim 1, 2, 3 or 4, characterized in that: The central axial airway is arc-shaped and is arranged at the front.

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