Gas stove

Abstract

The utility model provides a gas stove and relates to the technical field of kitchen equipment. The gas stove comprises an air duct, a table top, a burner and an injection pipe, the air duct is connected with the table top, gas circulates in the air duct and is used for cooling the table top, the air duct comprises an air inlet end and an air outlet end, the air inlet end is communicated with the outside, the air outlet end is communicated with the injection pipe, the burner is communicated with the injection pipe, and the injection pipe comprises an inner ring injection pipe and an outer ring injection pipe. The air outlet end is provided with a first communicating hole communicating with the inner ring injection pipe and a second communicating hole communicating with the outer ring injection pipe. External cold air can be introduced into the air duct, heat generated when the burner heats the table top is taken away through heat exchange between the cold air and the table top, the temperature of the table top is lowered, and then the aging rate of the table top can be lowered. The heated air in the air duct enters the inner ring injection pipe and the outer ring injection pipe to participate in combustion, so that the temperature of the mixed air and fuel gas is increased, the combustion of the combustor is more sufficient, and the combustion efficiency of the combustor is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen equipment, in particular to a gas stove. Background Art

[0002] At present, most gas countertops on the market use glass panels or stainless steel panels. The heat generated by the burner of the gas stove is easily diffused to the countertop, which increases the temperature of the cabinet countertop. The countertop is in extreme use environment for a long time, which is prone to damage, discoloration and other problems, accelerating the aging of the countertop, and also affecting the user experience. In addition, the heat of the burner will also be lost due to diffusion to the countertop, reducing the combustion efficiency of the burner.

[0003] The burner in the gas stove usually uses gas to inject air when working, that is, the gas is ejected from the nozzle under a certain pressure and enters the ejector, and the air is sucked in by the energy of the gas. The gas and air are mixed in the ejector to form a premixed combustible gas, and then the premixed combustible gas flows out and burns to form a flame. The ejector usually includes an inner ring ejector tube and an outer ring ejector tube. The inner ring ejector tube is connected to the inner ring of the burner, and the outer ring ejector tube is connected to the outer ring of the burner. The inner ring ejector tube and the outer ring ejector tube provide combustible gas to the inner ring and the outer ring respectively. However, in the prior art, the air temperature entering the inner ring ejector tube and the outer ring ejector tube is low, and the temperature after the air and gas are mixed is also low. The burner needs more time to fully burn, resulting in low combustion efficiency of the burner, and sometimes incomplete combustion occurs. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a gas stove in order to overcome the defects of the stove table temperature being too high and the burner combustion efficiency being low in the prior art.

[0005] The utility model solves the above technical problems through the following technical solutions:

[0006] The utility model provides a gas stove, which comprises: an air duct, a table, a burner and an ejection pipe;

[0007] The air duct is connected to the table top, and gas flows in the air duct to cool the table top. The air duct includes an air inlet end and an air outlet end, the air inlet end is connected to the outside, and the air outlet end is connected to the ejector pipe;

[0008] The burner is connected to the ejector tube, and the ejector tube includes an inner ring ejector tube and an outer ring ejector tube. The gas outlet end is provided with a first connecting hole connected to the inner ring ejector tube and a second connecting hole connected to the outer ring ejector tube.

[0009] In this solution, the air outlet of the air duct is connected to the ejector tube, the ejector tube ejects gas to generate negative pressure, and the air inlet of the air duct is connected to the outside, so that cold air from the outside can be introduced. The cold air can exchange heat with the tabletop through the flow of the air duct, so as to take away the heat generated by the burner heating the tabletop, reduce the temperature of the tabletop, and thus reduce the aging rate of the tabletop. In addition, the heated air in the air duct enters the inner ring ejector tube and the outer ring ejector tube through the first connecting hole and the second connecting hole respectively to participate in the combustion, which increases the temperature of the mixed air and gas, makes the burner burn more fully, and thus improves the combustion efficiency of the burner.

[0010] Preferably, the air duct is at least arranged at a portion connected to the table top close to the burner.

[0011] In the present solution, the closer the table top is to the burner, the easier it is to be heated by the burner and cause the temperature to rise. By setting the air duct to connect the part of the table top close to the burner, the air duct can more fully absorb the heat of the table top and have a better cooling effect on the table top. At the same time, the temperature of the part of the table top close to the burner is higher, which can also make the air in the air duct and the table top heat exchange faster, and the air temperature in the air duct is higher. The heated air enters the inner ring ejector tube and the outer ring ejector tube through the first connecting hole and the second connecting hole respectively to participate in combustion, thereby increasing the temperature of the mixed air and gas and improving the combustion efficiency of the burner.

[0012] Preferably, the air duct is arranged at least around the burner.

[0013] In the present solution, the table tops around the burner are heated. By setting the air duct around the burner, the air in the air duct can surround the burner to absorb the heat of the table top, so that the heat absorption is more uniform and the cooling effect on the table top is better. At the same time, the heat exchange between the air in the air duct and the table top can be more complete by surrounding it, so that the air temperature in the air duct is higher. The heated air enters the inner ring ejector tube and the outer ring ejector tube through the first connecting hole and the second connecting hole respectively to participate in combustion, thereby increasing the temperature of the air and gas after mixing, and the combustion efficiency of the burner is also higher.

[0014] Preferably, the air inlet end and the air outlet end are arranged on the same side of the table top, and the air duct is arranged from the air inlet end to at least surround the burner and then reach the air outlet end.

[0015] In the present scheme, the air inlet and outlet ends of the air duct are arranged on the same side of the table top, and the gas first enters the air duct from the air inlet end, then circles around the burner and is discharged from the air outlet end on the same side, thereby increasing the flow path of the air in the air duct. The air duct can more fully absorb the heat of the table top, and has a better cooling effect on the table top. At the same time, the heat exchange between the air in the air duct and the table top is more complete, making the air temperature in the air duct higher. The heated air enters the inner ring ejector tube and the outer ring ejector tube through the first connecting hole and the second connecting hole respectively to participate in combustion, thereby increasing the temperature of the mixed air and gas, and the combustion efficiency of the burner is also higher.

[0016] Preferably, the gas stove further comprises a fan, wherein the fan is arranged at the air inlet end, and an air outlet of the fan faces the air inlet end.

[0017] In this solution, the air outlet of the fan faces the air inlet end of the air duct, so that the cold air is brought into the air duct through the fan, so that the cold air can circulate better in the air duct, and the heat dissipation effect of the air duct is better.

[0018] Preferably, the gas stove further comprises an air duct body, the air duct body is provided with a accommodating cavity having an opening, and the table top at least covers the opening to form the closed air duct.

[0019] In this solution, the table top covers the opening on the air duct body to form a closed air duct, which can prevent air from overflowing from the air duct, so that the gas in the air duct directly contacts the table top. By flowing the gas in the closed air duct, the gas in the channel fully contacts the table top, which better takes away the heat from the table top and has a better cooling effect on the table top.

[0020] Preferably, one of the position of the air duct body close to the ejector pipe and the ejector pipe is provided with a positioning column, and the other is provided with a positioning hole matching the positioning column.

[0021] In the present solution, a positioning column is provided at a position of the air duct body close to the ejector tube and one of the ejector tubes, and a positioning hole matching the positioning column is provided at the other. During the installation process, the positioning column can be inserted into the positioning hole, thereby facilitating the positioning of the air duct body and the ejector tube, making the installation of the air duct body and the ejector tube more accurate, and avoiding displacement of the air duct body and the ejector tube during use.

[0022] Preferably, the gas stove further comprises a chassis;

[0023] The bottom plate and the table top are combined to form a cavity, the air duct body and part of the burner are arranged in the cavity, and the bottom plate is provided with an air inlet hole connecting the cavity and the outside.

[0024] In this solution, by arranging the air duct body and part of the burner in the cavity, the chassis can protect the air duct body and the burner. At the same time, the chassis, the air duct body, the table top and the burner can form a module, which is easier to manufacture and install, and reduces production costs.

[0025] Preferably, a portion of the air duct body close to the air inlet end is recessed toward the outside of the air duct to form a groove.

[0026] In this solution, cold air enters the air duct from the air inlet end of the air duct. The part of the air duct body close to the air inlet end is recessed toward the outside of the air duct to form a groove, thereby expanding the cross-sectional size of the part of the air duct close to the air inlet end. This is more conducive to cold air entering the air duct from the air inlet end, allowing the gas in the air duct to circulate better and having a better cooling effect on the countertop.

[0027] Preferably, the air inlet end is arranged at a region of the table top close to the air inlet hole.

[0028] In this solution, since the gas enters the cavity of the gas stove from the air inlet hole of the chassis, by setting the air inlet end close to the air inlet hole, the gas can more easily enter the interior of the air duct from the air inlet end of the air duct, making the air duct have a better cooling effect on the countertop.

[0029] The positive and progressive effects of the utility model are:

[0030] The utility model provides a gas stove, which includes an air duct, a table, a burner and an ejector tube. The air outlet end of the air duct is connected to the ejector tube, and the ejector tube ejects gas to generate negative pressure. The air inlet end of the air duct is connected to the outside, so that cold air from the outside can be introduced. The flow of cold air in the air duct can exchange heat with the table, so that the heat generated by the burner heating the table can be taken away, the temperature of the table can be reduced, and the aging rate of the table can be reduced. In addition, the heated air in the air duct enters the inner ring ejector tube and the outer ring ejector tube through the first connecting hole and the second connecting hole respectively to participate in combustion, which increases the temperature of the air and gas after mixing, makes the burner burn more fully, and thus improves the combustion efficiency of the burner. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the three-dimensional structure of a gas stove according to Embodiment 1 of the present utility model.

[0032] Figure 2 It is a schematic diagram of the three-dimensional structure of the cavity according to Example 1 of the utility model.

[0033] Figure 3 It is a schematic cross-sectional structure diagram of a gas stove according to Embodiment 1 of the present utility model.

[0034] Figure 4It is a schematic diagram of the three-dimensional structure of the air duct according to Example 1 of the utility model.

[0035] Figure 5 It is a schematic diagram of the three-dimensional structure of the ejector tube according to Example 1 of the utility model.

[0036] Figure 6 It is a schematic diagram of the three-dimensional structure of the cavity according to Example 2 of the present utility model.

[0037] Description of reference numerals:

[0038] Gas stove 100

[0039] Air duct 200

[0040] Air duct body 210

[0041] Groove 211

[0042] Inlet end 220

[0043] Gas outlet 230

[0044] Accommodating chamber 240

[0045] First communication hole 231

[0046] The second communication hole 232

[0047] Table 300

[0048] Burner 400

[0049] Ejector tube 500

[0050] Inner ring ejector tube 510

[0051] Outer ring ejector tube 520

[0052] Fan 600

[0053] Positioning column 710

[0054] Positioning hole 720

[0055] Chassis 800

[0056] Cavity 810

[0057] Air Inlet 820 DETAILED DESCRIPTION

[0058] The present invention is further described below by way of embodiments, but the present invention is not limited to the scope of the embodiments.

[0059] Example 1

[0060] like Figure 1-Figure 5As shown, this embodiment provides a gas stove 100, which includes an air duct 200, a table 300, a burner 400, an ejector pipe 500 and a chassis 800. The air duct 200 is connected to the table 300, and gas flows in the air duct 200 to cool the table 300. The air duct 200 includes an air inlet end 220 and an air outlet end 230. The air inlet end 220 is connected to the outside, and the air outlet end 230 is connected to the ejector pipe 500. The burner 400 is connected to the ejector pipe 500, and the ejector pipe 500 includes an inner ring ejector pipe 510 and an outer ring ejector pipe 520. The air outlet end 230 is provided with a first connecting hole 231 connected to the inner ring ejector pipe 510 and a second connecting hole 232 connected to the outer ring ejector pipe 520.

[0061] In this embodiment, the air outlet end 230 of the air duct 200 is connected to the ejector tube 500, which ejects fuel gas to generate negative pressure. The air inlet end 220 of the air duct 200 is connected to the outside world. The flow of cold air in the air duct 200 can exchange heat with the table top 300, thereby taking away the heat generated by the burner 400 heating the table top 300 and reducing the temperature of the table top 300. The heated air enters the inner ring ejector tube 510 through the first connecting hole 231 of the air outlet end 230 of the air duct 200 to participate in combustion, and enters the outer ring ejector tube 520 through the second connecting hole 232 of the air outlet end 230 of the air duct 200 to participate in combustion, thereby improving the combustion efficiency of the burner 400.

[0062] The closer the table top 300 is to the burner 400, the easier it is to be heated by the burner 400 and cause the temperature to rise. The air duct 200 is at least arranged to connect to the portion of the table top 300 close to the burner 400. The air duct 200 can more fully absorb the heat of the table top 300 and have a better cooling effect on the table top 300. At the same time, the temperature of the portion of the table top 300 close to the burner 400 is higher, which can also make the air in the air duct 200 and the table top 300 exchange heat faster. The air temperature in the air duct 200 is higher, and the heated air enters the inner ring ejector tube 510 and the outer ring ejector tube 520 through the first connecting hole 231 and the second connecting hole 232 respectively to participate in combustion, thereby increasing the temperature of the mixed air and gas, and the combustion efficiency of the burner 400 is also higher.

[0063] When the burner 400 is in use, the table 300 around the burner 400 is heated, and the air duct 200 is at least arranged around the burner 400. The air in the air duct 200 can absorb the heat of the table 300 around the burner 400, and the heat absorption is more uniform, which has a better cooling effect on the table 300. At the same time, the heat exchange between the air in the air duct 200 and the table 300 can be more sufficient by surrounding it, so that the air temperature in the air duct 200 is higher. The heated air enters the inner ring ejector pipe 510 and the outer ring ejector pipe 520 through the first connecting hole 231 and the second connecting hole 232 respectively to participate in the combustion, thereby increasing the temperature of the air and gas after mixing, and the combustion efficiency of the burner 400 is also higher. In this embodiment, the air duct 200 is annular, and in other embodiments, it can be square or irregular, and other shapes of the air duct 200 that are considered appropriate by those skilled in the art can also be selected.

[0064] It should be noted that, in the present embodiment, the air duct 200 is only arranged around the burner 400. In other embodiments, the arrangement position of the air duct 200 can be adjusted according to actual needs, and the specific arrangement of the air duct 200 is not limited herein.

[0065] The air inlet end 220 and the air outlet end 230 are disposed on the same side of the table 300 , and the air duct 200 is disposed from the air inlet end 220 to at least surround the burner 400 and then reaches the air outlet end 230 . By arranging the air inlet end 220 and the air outlet end 230 of the air duct 200 on the same side of the table 300, the gas first enters the air duct 200 from the air inlet end 220, and then flows around the burner 400 and is discharged from the air outlet end 230 on the same side, thereby increasing the flow path of the air in the air duct 200. The air duct 200 can absorb the heat of the table 300 more fully, and the cooling effect on the table 300 is better. At the same time, the heat exchange between the air in the air duct 200 and the table 300 is more sufficient, so that the air temperature in the air duct 200 is higher. The heated air enters the inner ring ejector tube 510 and the outer ring ejector tube 520 through the first connecting hole 231 and the second connecting hole 232 respectively to participate in combustion, thereby increasing the temperature of the mixed air and gas, and the combustion efficiency of the burner 400 is also higher. In this embodiment, the air inlet 220 and the air outlet 230 are located on one side of the burner 400 close to the center of the gas stove 100. In other embodiments, other positions of the air inlet 220 and the air outlet 230 that are considered appropriate by those skilled in the art may also be selected. In this embodiment, the air duct 200 is around the burner 400. In other embodiments, the air duct 200 may be arranged to be around the burner 400 for more than one cycle, or other arrangements of the air duct 200 that are considered appropriate by those skilled in the art may also be selected.

[0066] The gas stove 100 further includes a fan 600, which is disposed at the air inlet end 220, and the air outlet of the fan 600 faces the air inlet end 220, so that the cold air is brought into the air duct 200 by the fan 600, so that the cold air can flow better in the air duct 200, and the heat dissipation effect of the air duct 200 is better. In this embodiment, the air outlet of the fan 600 is arranged forwardly toward the air inlet end 220, and in other embodiments, the air outlet of the fan 600 can also be arranged obliquely toward the air inlet end 220.

[0067] The gas stove 100 also includes an air duct body 210, which is provided with a receiving cavity 240 with an opening. The table top 300 covers the opening to form a closed air duct 200, which can prevent air from overflowing from the air duct 200. The gas flows in the receiving cavity 240, so that the gas in the air duct 200 directly contacts the table top 300. Through the flow of gas in the closed air duct 200, the gas in the channel fully contacts the table top 300, so as to better take away the heat of the table top 300 and have a better cooling effect on the table top 300.

[0068] In this embodiment, in order to form a closed air duct 200, the air duct body 210 and the table top 300 can be connected by welding, so that if one of the air duct body 210 and the table top 300 is damaged, only the damaged air duct body 210 or the table top 300 needs to be replaced for normal use, thereby reducing the cost of use. In other embodiments, the air duct body 210 and the table top 300 can be connected by gluing and sealing with a sealing strip. The connection method of the air duct body 210 and the table top 300 that is considered appropriate by those skilled in the art can be selected according to actual needs.

[0069] The chassis 800 and the table 300 enclose a cavity 810, the air duct body 210 and part of the burner 400 are arranged in the cavity 810, and the chassis 800 is provided with an air inlet 820 connecting the cavity 810 and the outside. In this embodiment, by arranging the air duct body 210 and part of the burner 400 in the cavity 810, the chassis 800 can protect the air duct body 210 and the burner 400. At the same time, the chassis 800, the air duct body 210, the table 300 and the burner 400 can form a module, which is more convenient for production and installation, and reduces production costs. In this embodiment, the air inlet 820 is a grille structure composed of a plurality of strip holes. In other embodiments, other air inlet 820 structures that are considered appropriate by those skilled in the art can also be selected.

[0070] The air inlet end 220 is arranged in an area of ​​the table top 300 close to the air inlet hole 820. Since the gas enters the cavity 810 of the gas stove 100 from the air inlet hole 820 of the bottom plate 800, by arranging the air inlet end 220 close to the air inlet hole 820, the gas can more easily enter the interior of the air duct 200 from the air inlet end 220 of the air duct 200, so that the air duct 200 has a better cooling effect on the table top 300.

[0071] In the present embodiment, a positioning post 710 is provided on the ejector tube 500, and a positioning hole 720 matching the positioning post 710 is provided at a position of the air duct body 210 near the ejector tube 500. During the installation process, the positioning post 710 can be inserted into the positioning hole 720, thereby facilitating the positioning of the air duct body 210 and the ejector tube 500, making the installation of the air duct body 210 and the ejector tube 500 more accurate, and also avoiding the displacement of the air duct body and the ejector tube 500 during use. In other embodiments, a positioning post 710 can also be provided at a position of the air duct body 210 near the ejector tube 500, and a positioning hole 720 matching the positioning post 710 can be provided on the ejector tube 500. Those skilled in the art can also select other suitable positioning structures of the ejector tube 500 and the air duct body 210.

[0072] Example 2

[0073] The structure of this embodiment is basically the same as that of Embodiment 1, and the same structure will not be described in detail. The difference is that:

[0074] like Figure 6 As shown, in the present embodiment, the air duct 200 is square, and the air duct 200 is arranged at the portion connected to the table top 300 close to the burner 400, and the air duct 200 is arranged on one side of the burner 400 close to the center of the gas stove 100. In other embodiments, other positions of the air duct 200 deemed appropriate by other technicians in this field can also be selected as needed.

[0075] This embodiment does not include the fan 600 , the air inlet end 220 of the air duct 200 is directly connected to the air inlet hole 820 on the chassis 800 , and the ejector pipe 500 ejects the gas to generate negative pressure, thereby introducing cold air into the air duct 200 .

[0076] In this embodiment, the portion of the air duct body 210 near the air inlet end 220 is recessed toward the outside of the air duct 200 to form a groove 211. Cold air enters the air duct 200 from the air inlet end 220 of the air duct 200. By recessing the portion of the air duct body 210 near the air inlet end 220 toward the outside of the air duct 200 to form the groove 211, the cross-sectional size of the portion of the air duct 200 near the air inlet end 220 can be enlarged, which is more conducive to cold air entering the air duct from the air inlet end 220, so that the gas in the air duct 200 can circulate better, and the cooling effect on the table 300 is better.

[0077] 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.

[0078] 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. A gas stove, characterized in that: It includes: air duct, table, burner and ejector pipe; The air duct is connected to the table top, and gas flows in the air duct to cool the table top. The air duct includes an air inlet end and an air outlet end, the air inlet end is connected to the outside, and the air outlet end is connected to the ejector pipe; The burner is connected to the ejector tube, and the ejector tube includes an inner ring ejector tube and an outer ring ejector tube. The gas outlet end is provided with a first connecting hole connected to the inner ring ejector tube and a second connecting hole connected to the outer ring ejector tube.

2. The gas stove according to claim 1, characterized in that: The air duct is at least arranged at a portion connected to the table top close to the burner.

3. The gas stove according to claim 2, characterized in that: The air duct is at least arranged around the burner.

4. The gas stove according to claim 3, characterized in that: The air inlet end and the air outlet end are arranged on the same side of the table top, and the air duct is arranged from the air inlet end to at least surround the burner and then reaches the air outlet end.

5. The gas stove according to claim 1, characterized in that: The gas stove further comprises a fan, which is arranged at the air inlet end, and an air outlet of the fan faces the air inlet end.

6. The gas stove according to claim 1, characterized in that: The gas stove further comprises an air duct body, on which a receiving cavity with an opening is provided, and the table top at least covers the opening to form the closed air duct.

7. The gas stove according to claim 6, characterized in that: The position of the air duct body close to the ejection pipe and the ejection pipe are provided with a positioning column, and the other is provided with a positioning hole matching the positioning column.

8. The gas stove according to claim 6, characterized in that: The gas stove also includes a chassis; The bottom plate and the table top are combined to form a cavity, the air duct body and part of the burner are arranged in the cavity, and the bottom plate is provided with an air inlet hole connecting the cavity and the outside.

9. The gas stove according to claim 8, characterized in that: A portion of the air duct body close to the air inlet end is recessed toward the outside of the air duct to form a groove.

10. The gas stove according to claim 9, characterized in that: The air inlet end is arranged at a region of the table surface close to the air inlet hole.

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