Upper-air-inlet double-injection-pipe stove burner

Abstract

An upper air inlet double-injection-pipe stove burner comprises a furnace end, a flow dividing base, an ignition needle and an induction needle, a center air outlet base and an outer ring air outlet base support a circular base plate, a nozzle is opposite to a center injection pipe and an outer ring injection pipe, the center injection pipe is located between limiting plates, and the limiting plates and arc-shaped plates are located on the two sides of the outer ring injection pipe respectively. The upper supporting plate is matched with the radial supporting plate in a supporting mode, and the ignition needle and the induction needle are fixed to the circular base plate and correspond to the axial secondary air channel. The furnace end is provided with two limiting plates and an arc limiting plate, positioning grooves are formed between the limiting plates and between the limiting plates and the arc limiting plate to be matched with the center injection pipe and the outer ring injection pipe, rotation is prevented, and recognition and assembly are convenient.

Description

Technical Field

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

[0002] In the current prior art, Chinese Patent No. 202322089666.6, an upward air inlet burner for a cooking stove, includes a burner head, a burner seat, an inner fire cover and an outer ring fire cover. The burner head includes a seat plate, a nozzle seat, an outer ring air inlet seat, a front lower support seat, a rear support clamp seat, a side lower support seat, an inner nozzle seat and an inner air inlet seat, an ignition needle hole, and an induction needle hole. The burner seat includes an inner fire cover seat, an outer ring gas groove, a rear air guide cavity, an outer ejector tube, an inner ejector tube, a secondary air passage, a front upper support seat, a rear tongue and a side upper support seat. The outer ejector tube intersects with the front upper support seat, and a front tongue is provided on the front upper support seat; the rear tongues are arranged on both sides of the rear air guide cavity; the end of the inner ejector tube intersects with the end wall plate of the side upper support seat; the front lower support seat supports the front upper support seat, the front tongue is fitted into the front card slot, the rear air guide cavity is fitted into the middle rear card slot, and the rear card is fitted into the rear left card slot and the rear right card slot; the side lower support seat supports the side upper support seat, and the end of the inner ejector tube is fitted into the side card slot. The problem is that the structure for preventing rotation is complex. Summary of the Utility Model

[0003] The purpose of the utility model is to provide an upward air inlet double ejector tube burner for a cooking stove, which has the characteristics of simple structure for preventing rotation, convenient identification and convenient assembly.

[0004] The utility model is realized as follows: an upward air inlet double ejector tube burner for a cooking stove, which is characterized in that it includes a burner head, a flow dividing seat, an ignition needle and an induction needle.

[0005] The burner head includes a circular seat plate, two limiting plates, an arc-shaped plate and a radial support plate, an ignition needle hole, an induction needle hole, a central radial plate, a central air inlet seat and a central air outlet seat, an outer radial plate, an outer ring air inlet seat and an outer ring air outlet seat. The central radial plate and the outer radial plate are perpendicular; nozzle mounting holes with horizontal axes are provided on the central air outlet seat and the outer ring air outlet seat; the ignition needle hole and the induction needle hole are located on both sides of the diameter line where the outer radial plate is located.

[0006] The flow dividing seat includes a central fire cover seat, an outer ring gas groove, a premixing chamber, radial rib plates, an upper support plate, a central ejector tube and an outer ring ejector tube. The radial rib plates are arranged between the central fire cover seat and the outer ring gas groove in the front-back or left-right direction and form an axial secondary air passage. The central ejector tube is connected to a radial rib plate in the front-back direction and communicates with the central fire cover seat. The outer ring ejector tube intersects with the radial rib plates in the left-right direction and the central fire cover seat and communicates with the premixing chamber. The premixing chamber communicates with the outer ring gas groove.

[0007] The central air outlet base and the outer ring air outlet base support the circular seat plate, and the nozzles are respectively opposite to the central ejector pipe and the outer ring ejector pipe. The central ejector pipe is located between the limiting plates, and the limiting plates and the arc-shaped plate are respectively located on both sides of the outer ring ejector pipe. The upper support plate and the radial support plate are in supporting cooperation. The ignition needle and the induction needle are fixed to the circular seat plate and are respectively opposite to the axial secondary air channels.

[0008] For the above-mentioned upward air inlet double ejector pipe cooker burner, its special feature lies in that: the ignition needle and the induction needle are respectively opposite to the axial secondary air channels in the second quadrant and the third quadrant.

[0009] For the above-mentioned upward air inlet double ejector pipe cooker burner, its special feature lies in that: the premixing chamber is arc-shaped, and a flow dividing protrusion is provided on the outer ring wall plate of the premixing chamber, and the flow dividing protrusion is opposite to the axis of the outer ring ejector pipe.

[0010] For the above-mentioned upward air inlet double ejector pipe cooker burner, its special feature lies in that: the flow dividing protrusion is wave-shaped and the intersection with the outer ring wall plate is rounded.

[0011] For the above-mentioned upward air inlet double ejector pipe cooker burner, its special feature lies in that: the central ejector pipe and the outer ring ejector pipe intersect.

[0012] For the above-mentioned upward air inlet double ejector pipe cooker burner, its special feature lies in that: the circular seat plate is provided with a head and extends to the central radial plate and the outer ring radial plate.

[0013] For the upward air inlet double ejector pipe cooker burner of the present utility model, the burner head is provided with two limiting plates and an arc-shaped limiting plate. The space between the limiting plates and between the limiting plate and the arc-shaped limiting plate forms positioning grooves to cooperate with the central ejector pipe and the outer ring ejector pipe, preventing rotation, facilitating identification, and convenient for assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is the top view of the present utility model.

[0015] Figure 2 is Figure 1 the A - A view of

[0016] Figure 3 is Figure 1 the B - B view of

[0017] Figure 4 is one of the three-dimensional exploded views of the present utility model.

[0018] Figure 5 is the second three-dimensional exploded view of the present utility model.

[0019] Figure 6 is the three-dimensional view of the present utility model. DETAILED DESCRIPTION OF THE INVENTION

[0020] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model.

[0021] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0022] As Figure 1 shown, an upward air inlet double ejector tube cooker burner includes a burner head 1, a flow dividing seat 2, an ignition needle 3, an induction needle (not shown in the figure), a central fire cap, and an outer ring fire cap.

[0023] The burner head 1 includes a circular seat plate 11, two limiting plates 121, an arc-shaped plate 122, a radial support plate 123, an ignition needle hole 131, an induction needle hole 132, a central radial plate 141, a central air inlet seat 142, and a central air outlet seat 143, an outer radial plate 151, an outer ring air inlet seat 152, and an outer ring air outlet seat 153. The central radial plate 141 and the outer radial plate 151 are perpendicular; the central air outlet seat 143 and the outer ring air outlet seat 153 are provided with nozzle mounting holes with a horizontal axis, and nozzles are provided on the nozzle mounting holes; the ignition needle hole 131 and the induction needle hole 132 are located on both sides of one end of the diameter line where the outer radial plate 151 is located; the central radial plate 141 is in the front-rear direction, and the outer radial plate 151 is in the left-right direction; the central air inlet seat 142 and the central air outlet seat 143 are respectively located on the upper surface and the lower surface of the central radial plate 141 and are communicated; the outer ring air inlet seat 152 and the outer ring air outlet seat 153 are respectively located on the upper surface and the lower surface of the outer radial plate and are communicated.

[0024] The flow dividing seat 2 includes a central fire cap seat 21, an outer ring gas groove 22, a premixing chamber 23, a radial rib plate 24, an upper support plate 25, a central ejector tube 26, and an outer ring ejector tube 27. The radial rib plate 24 is arranged between the central fire cap seat 21 and the outer ring gas groove 22 in the front-rear or left-right direction and forms an axial secondary air passage 241, as Figure 1As shown in the figure, axial secondary air channels 241 are respectively arranged in the first quadrant, the second quadrant, the third quadrant and the fourth quadrant; the central injection tube 26 is connected to a radial rib plate 24 in the front-back direction and communicates with the central burner base 21, that is, the central injection tube 26 is fixed to the radial rib plate 24 in the negative Y-axis direction; the outer ring injection tube 27 intersects with the radial rib plates 24 in the left-right direction and the central burner base 21 and communicates with the premixing chamber 23, and the premixing chamber 23 communicates with the outer ring gas groove 22; the outer ring injection tube 27 is arranged along the X-axis and is fixed to two radial rib plates 24 on the X-axis, and the premixing chamber is arranged at the negative direction end of the X-axis; As Figure 4 shown, two limiting plates 121 are located in the third quadrant of the XY plane, the arc-shaped plate 122 intersects with the X-axis and both ends are located in the first quadrant and the fourth quadrant;

[0025] The central air outlet seat 143 and the outer ring air outlet seat 153 support the circular seat plate 11 and the nozzles are respectively opposite to the central injection tube 26 and the outer ring injection tube 27. The central injection tube 26 is located between the two limiting plates 121. The limiting plates 121 and the arc-shaped plate 122 are respectively located on both sides of the outer ring injection tube 27. The upper support plate 25 and the radial support plate 123 are in supporting cooperation. The ignition needle 3 and the induction needle are fixed to the circular seat plate 11 and respectively correspond to the axial secondary air channels. The ignition needle 3 and the induction needle respectively correspond to the axial secondary air channels in the second quadrant and the third quadrant.

[0026] With such a structure, during assembly, the central injection tube and the central air outlet seat, and the outer ring injection tube and the outer ring air outlet seat correspond to each other, and then the shunt seat can be moved downward, which is convenient for assembly.

[0027] As a further improvement of the present invention: the ignition needle 3 and the induction needle respectively correspond to the axial secondary air channels in the second quadrant and the third quadrant.

[0028] As a further improvement of the present invention: the premixing chamber 23 is arc-shaped, and a shunt protrusion 231 is provided on the outer wall plate of the premixing chamber 23, and the shunt protrusion 231 is opposite to the axis of the outer ring injection tube 27. With the setting of the shunt protrusion 231, the gas-air mixture entering the premixing chamber 23 and the mixture flowing in the clockwise and counterclockwise directions are basically the same, preventing the generation of eddy currents.

[0029] As a further improvement of the present invention: the shunt protrusion 231 is in a wave crest shape and is rounded at the intersection with the outer wall plate of the premixing chamber 23.

[0030] As a further improvement of the present invention: the central injection tube 26 and the outer ring injection tube 27 intersect, that is to say, they are in a T-shaped distribution.

[0031] As a further improvement of the present utility model: a head 111 is provided on the circular seat plate 11 and extends to the central radial plate 141 and the outer radial plate 151; two limiting plates 121, an arc-shaped plate 122, a radial support plate 123, an ignition needle hole 131 and an induction needle hole 132 are provided on the head 111;

[0032] The head 111, the central air outlet seat and the outer ring air outlet seat extend out of the bottom shell through the through holes on the liquid receiving tray of the cooker.

[0033] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A stove burner with double ejector tubes and upper air inlet, characterized in that: Including burner head, diverter seat, ignition needle and induction needle, The furnace head includes a circular base plate, two limit plates, an arc-shaped plate and a radial support plate, an ignition pinhole, an induction pinhole, a central radial plate, a central air inlet seat and a central air outlet seat, an outer radial plate, an outer ring air inlet seat and an outer ring air outlet seat, wherein the central radial plate and the outer radial plate are perpendicular to each other; the central air outlet seat and the outer ring air outlet seat are provided with nozzle mounting holes with horizontal axes; the ignition pinhole and the induction pinhole are located on both sides of the diameter line where the outer radial plate is located; The splitter seat includes a central fire cover seat, an outer ring gas groove, a premixing chamber, a radial rib plate, an upper support plate, a central ejector pipe and an outer ring ejector pipe. The radial rib plate is arranged between the central fire cover seat and the outer ring gas groove in a front-to-back or left-to-right direction and forms an axial secondary air passage. The central ejector pipe is connected to a radial rib plate in the front-to-back direction and communicated with the central fire cover seat. The outer ring ejector pipe intersects with the radial rib plate and the central fire cover seat in the left-to-right direction and communicates with the premixing chamber. The premixing chamber is communicated with the outer ring gas groove. The central air outlet seat and the outer ring air outlet seat support the circular seat plate and the nozzles are opposite to the central ejector tube and the outer ring ejector tube respectively. The central ejector tube is located between the limit plates. The limit plates and the arc plates are respectively located on both sides of the outer ring ejector tube. The upper support plate is supported and cooperated with the radial support plate. The ignition needle and the induction needle are fixed to the circular seat plate and correspond to the axial secondary air channels respectively.

2. The top-inlet double-ejector stove burner according to claim 1, characterized in that: The ignition needle and the sensing needle are opposite to the axial secondary air passages in the second quadrant and the third quadrant respectively.

3. The top-inlet double-ejector stove burner according to claim 1, characterized in that: The premixing chamber is in an arc shape, and a flow diversion protrusion is arranged on the outer ring wall plate of the premixing chamber, and the flow diversion protrusion is opposite to the axis of the outer ring ejector tube.

4. The top-inlet double-ejector stove burner according to claim 3, characterized in that: The diversion protrusion is in a wave crest shape and has a rounded corner at the intersection with the outer ring wall plate.

5. The top-inlet double-ejector stove burner according to claim 1, characterized in that: The central ejector tube and the outer ring ejector tube intersect.

6. The upper air inlet double ejector stove burner according to claim 1, 2, 3, 4 or 5, characterized in that: The circular seat plate is provided with a head and extends onto the central radial plate and the outer ring radial plate.

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