A central nozzle safety protection structure for an upper air inlet burner

Abstract

The present invention discloses a central nozzle safety protection structure of an upper air inlet burner, comprising a furnace base, an inner air supply channel and an outer air supply channel are provided at the bottom of the furnace base, a central air inlet nozzle connected to the inner air supply channel and an outer air inlet nozzle connected to the outer air supply channel are provided at the top of the furnace base, a central nozzle is mounted on the central air inlet nozzle, a guardrail is provided at the periphery of the central air inlet nozzle, the guardrail is integrated with the furnace base, the horizontal height of the guardrail is higher than the horizontal height of the central nozzle, and a plurality of opening slots are provided on the guardrail. The present invention has the advantages of simple structure, safety, reliability and convenient cleaning.

Description

Technical Field

[0001] The invention relates to the technical field of gas stoves, and in particular to a central nozzle safety protection structure of an upper air inlet burner. Background Art

[0002] A gas stove is a kitchen appliance that uses liquefied petroleum gas, artificial coal gas, natural gas and other gas fuels for direct fire heating. Its core component is a burner, such as a new type of gas stove burner disclosed in Chinese patent application number CN201521032573.9, which includes a stove base; the stove base has an inner cavity, and the bottom of the inner cavity is provided with a plurality of air inlet holes connected to an air supply channel, the air inlet holes include a first air inlet hole located at the center of the bottom of the inner cavity, and a plurality of second air inlet holes evenly arranged around the first air inlet hole, a first air outlet channel is provided on the top of the stove base opposite to the first air inlet hole, and a plurality of second air outlet channels are provided opposite to the second air inlet holes, and a ventilation channel leading to the center is formed between the second air outlet channels on the upper surface of the stove base; the burner Plate; the combustion plate is arranged on the stove base, and has a plurality of concentric annular grooves; and a fire distribution cover; including a first fire distribution cover covered on the first air outlet channel, and a plurality of second fire distribution covers covered on each annular groove, and the sides of the first fire distribution cover and the second fire distribution cover are provided with fire outlet holes; although this structure solves the problems of low combustion efficiency, weak and uneven fire output existing in the gas stove burner, but in actual use, since there are no protective measures for the air inlet, it is easy to touch the air inlet. When cleaning, sewage or impurities can easily enter the air inlet, affecting the normal operation of the burner, and seriously clogging the gas nozzle, and it is easy to cause the connection between the gas nozzle and the air inlet to loosen, causing gas leakage, which is very dangerous. Summary of the invention

[0003] The purpose of the present invention is to address the defects and shortcomings of the prior art and provide a central nozzle safety protection structure for an upper air inlet burner, which has the advantages of simple structure, safety, reliability and easy cleaning.

[0004] The above technical objectives of the present invention are achieved through the following technical solutions: a central nozzle safety protection structure of an upper air inlet burner, comprising a furnace base, an inner air supply channel and an outer air supply channel are provided at the bottom of the furnace base, a central air inlet nozzle connected to the inner air supply channel and an outer air inlet nozzle connected to the outer air supply channel are provided at the top of the furnace base, a central nozzle is installed on the central air inlet nozzle, a guardrail is provided around the periphery of the central air inlet nozzle, the guardrail is integrated with the furnace base, the horizontal height of the guardrail is higher than the horizontal height of the central nozzle, and a plurality of open grooves are provided on the guardrail.

[0005] Furthermore, an installation step is provided on the upper edge of the guardrail to facilitate the installation of the furnace base.

[0006] Furthermore, a guide ring surface is provided between the guardrail and the central air inlet nozzle, and the guide ring surface is a conical surface, so that the liquid can flow out more easily, thereby improving safety.

[0007] Furthermore, a plurality of the opening slots are provided with slots on their side walls, and the guardrails are provided with filter nets corresponding to the opening slots one by one. The filter nets are respectively engaged with the slots to block larger impurities and prevent the central nozzle from being blocked.

[0008] Furthermore, two outer air inlet nozzles are provided, and outer nozzles are installed on the two outer air inlet nozzles. The air outlet directions of the outer nozzles are arranged parallel to the horizontal line, so that sewage or impurities are not easy to enter the outer nozzles, thereby improving safety.

[0009] Furthermore, the furnace base is provided with an inner air inlet communicated with the inner air supply channel and an outer air inlet communicated with the outer air supply channel.

[0010] Furthermore, a plurality of supporting feet are provided at the bottom of the furnace base, and a plurality of the supporting feet are provided with connecting ears for easy installation.

[0011] Furthermore, an ignition needle mounting seat and a thermocouple mounting seat are provided on the furnace seat. The ignition needle mounting seat is used to install the ignition needle, and the thermocouple mounting seat is used to install the thermocouple, thereby improving safety.

[0012] The beneficial effects of the present invention are as follows: first, by providing a guardrail on the periphery of the central air inlet nozzle, the horizontal height of the guardrail is higher than the horizontal height of the central nozzle, so that the central nozzle is difficult to touch, avoiding the problem of easy loosening in the prior art, and blocking impurities or sewage, solving the problem that the central nozzle may be blocked, making the stove base safer and more reliable when in use; the guardrail is integrated with the stove base to avoid the possibility of the guardrail being disassembled, improve safety, and make the manufacture of the guardrail more convenient and quick; third, by providing a plurality of open grooves on the guardrail, when sewage splashes into it, the open grooves can allow the sewage to flow out smoothly, making cleaning more convenient, and also facilitating the entry of air, allowing the gas and air to be fully mixed to ensure combustion efficiency; generally speaking, the present invention has the advantages of simple structure, safety and reliability, and easy cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is an exploded schematic diagram of the present invention.

[0014] Figure 2 yes Figure 1 A magnified schematic diagram of center A.

[0015] Figure 3 It is an axial schematic diagram of the present invention.

[0016] Figure 4 It is an axial schematic diagram of the present invention in another direction.

[0017] Figure 5 It is a cutaway schematic diagram of the present invention.

[0018] As shown in the figure: 1-furnace base; 10-inner air supply channel; 11-outer air supply channel; 12-center air inlet nozzle; 13-outer air inlet nozzle; 14-guide annulus; 15-inner air inlet; 16-outer air inlet; 17-support foot; 171-connecting ear; 18-ignition needle mounting seat; 19-thermocouple mounting seat; 2-center nozzle; 3-guardrail; 31-opening slot; 311-card slot; 4-filter screen; 5-outer nozzle. DETAILED DESCRIPTION

[0019] In order to more intuitively and completely understand the technical solution of the present invention, a non-limiting feature description is now provided in conjunction with the accompanying drawings of the present invention as follows:

[0020] like Figures 1 to 5 As shown, a central nozzle safety protection structure of an upper air inlet burner includes a furnace base 1, an inner air supply channel 10 and an outer air supply channel 11 are provided at the bottom of the furnace base 1, a central air inlet nozzle 12 connected to the inner air supply channel 10 and an outer air inlet nozzle 13 connected to the outer air supply channel 11 are provided at the top of the furnace base 1, a central nozzle 2 is installed on the central air inlet nozzle 12, a guardrail 3 is provided on the periphery of the central air inlet nozzle 12, the guardrail 3 is integrated with the furnace base 1, the horizontal height of the guardrail 3 is higher than the horizontal height of the central nozzle 2, and a plurality of opening grooves 31 are provided on the guardrail 3.

[0021] An installation step 32 is provided on the upper edge of the guardrail 3, which makes the installation of the stove base 1 more convenient and also makes the guardrail 3 better match with the combustion plate. A relatively sealed space is formed in the guardrail 3, so that the barrier effect is better.

[0022] A guide ring surface 14 is provided between the guardrail 3 and the central air inlet nozzle 12. The guide ring surface 14 is a conical surface. Specifically, the guide ring surface 14 is a conical surface with a high middle and low surroundings. It plays a guiding role on the incoming sewage, allowing the sewage to flow out faster, avoiding the deposition of impurities, and making cleaning more convenient.

[0023] Preferably, the guardrail 3 is an annular structure, and the opening grooves 31 are evenly arranged on the guardrail 3 to allow air to enter better and allow the gas to burn fully.

[0024] A plurality of opening slots 31 are provided with slots 311 on their side walls, and filter nets 4 corresponding to the opening slots 31 are provided on the guardrail 3. The filter nets 4 are respectively engaged with the slots 311. Specifically, six opening slots 31 are provided, and a filter net 4 is engaged in each opening slot 31.

[0025] There are two outer air inlet nozzles 13 , and outer nozzles 5 are installed on the two outer air inlet nozzles 13 . The air outlet directions of the outer nozzles 5 are parallel to the horizontal line.

[0026] Preferably, the central nozzle 2 and the outer nozzle 5 are both made of copper, and the nozzle outlets are both throttling holes, so that the gas can be ejected at a high speed.

[0027] The furnace base 1 is provided with an inner air inlet 15 communicating with the inner air supply channel 10 and an outer air inlet 16 communicating with the outer air supply channel 11 .

[0028] A plurality of supporting legs 17 are provided at the bottom of the furnace base 1 , and a connecting ear 171 is provided on each of the supporting legs 17 .

[0029] An ignition needle mounting seat 18 and a thermocouple mounting seat 19 are provided on the furnace base 1. The ignition needle mounting seat 18 is used to install the ignition needle, and the thermocouple mounting seat 19 is used to install the thermocouple. Preferably, the ignition needle mounting seat 18 and the thermocouple mounting seat 19 are both conical, which plays a positioning role in the installation of the combustion disk and makes the installation more convenient.

[0030] The above description is only a preferred embodiment of the present invention, so all equivalent changes or modifications made according to the structure, characteristics and principles described in the scope of the patent application of the present invention are included in the scope of the patent application of the present invention.

Claims

1. A central nozzle safety protection structure of an upper air inlet burner, comprising a furnace base (1), wherein the bottom of the furnace base (1) is provided with an inner air supply channel (10) and an outer air supply channel (11), and the top of the furnace base (1) is provided with a central air inlet nozzle (12) connected to the inner air supply channel (10) and an outer air inlet nozzle (13) connected to the outer air supply channel (11), characterized in that: A central nozzle (2) is mounted on the central air inlet nozzle (12); a guardrail (3) is disposed on the periphery of the central air inlet nozzle (12); the guardrail (3) is integrated with the furnace base (1); the horizontal height of the guardrail (3) is higher than the horizontal height of the central nozzle (2); and a plurality of opening grooves (31) are formed on the guardrail (3); A guide annular surface (14) is provided between the guardrail (3) and the central air inlet nozzle (12), and the guide annular surface (14) is a conical surface that is high in the middle and low around. A plurality of the opening slots (31) are provided with a clamping slot (311) on the side walls, and a filter screen (4) corresponding to each of the opening slots (31) is provided on the guardrail (3).

2. A central nozzle safety protection structure for an upper air inlet burner according to claim 1, characterized in that: An installation step (32) is provided on the upper edge of the guardrail (3).

3. A central nozzle safety protection structure for an upper air inlet burner according to claim 2, characterized in that: The filter screens (4) are respectively engaged with the engagement slots (311).

4. The central nozzle safety protection structure of the upper air inlet burner according to claim 1 is characterized in that: Two outer layer air inlet nozzles (13) are provided, and outer layer nozzles (5) are installed on the two outer layer air inlet nozzles (13). The air outlet directions of the outer layer nozzles (5) are arranged parallel to the horizontal line.

5. The central nozzle safety protection structure of the upper air inlet burner according to claim 1 is characterized in that: The furnace base (1) is provided with an inner air inlet (15) communicating with the inner air supply channel (10) and an outer air inlet (16) communicating with the outer air supply channel (11).

6. A central nozzle safety protection structure for an upper air inlet burner according to claim 5, characterized in that: A plurality of supporting feet (17) are provided at the bottom of the furnace base (1), and a connection ear (171) is provided on each of the plurality of supporting feet (17).

7. A central nozzle safety protection structure for an upper air inlet burner according to claim 6, characterized in that: An ignition needle mounting seat (18) and a thermocouple mounting seat (19) are provided on the furnace seat (1); the ignition needle mounting seat (18) is used to mount an ignition needle, and the thermocouple mounting seat (19) is used to mount a thermocouple.

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