Gas nozzle assembly and gas stove

Abstract

The utility model relates to the technical field of household appliances, and particularly discloses a gas nozzle assembly and a gas stove. The fuel gas nozzle assembly comprises a nozzle body and a nozzle seat, the nozzle seat comprises a mounting part, a fuel gas channel is arranged in the mounting part, the nozzle body is connected to the gas outlet end of the fuel gas channel, an air channel is further arranged in the mounting part, and a gas outlet of the air channel is formed in the periphery of the gas outlet end of the fuel gas channel and faces the same side with the gas outlet end of the fuel gas channel. In the gas injection process of the nozzle body, due to the air pressure difference and other reasons, external air is introduced to be mixed with gas for combustion, a spacing distance exists between the air channel and the gas channel, and the air outlet of the air channel and the gas outlet of the nozzle body are located on the same side. And air flowing out of the air outlet of the air channel can be introduced under the action of high-speed circulating fuel gas, so that the amount of the injected air is increased, better mixing of the gas and the fuel gas is facilitated, and the mixing effect of the fuel gas and the air is better facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to domestic appliance technical field, especially relate to a gas nozzle assembly and gas stove. BACKGROUND

[0002] The nozzle of the gas stove is an important component in the prior art, the gas enters the ejector through the nozzle, the gas and air are mixed in the ejector, the mixed gas is introduced into the head of the burner to realize combustion and heat release. In the above process, the mixing of the gas and air by the external air injection directly affects the combustion efficiency. Generally, the more sufficient the mixing of the gas and air, the more sufficient the combustion of the mixed gas, and the more heat released. In the prior art, if a large nozzle is used, the injection capacity is poor, and the combustion effect cannot be improved. If a small nozzle is used, the mixing of the gas and air cannot be realized well, thereby affecting the combustion efficiency. SUMMARY

[0003] The utility model wants to solve the technical problem that the gas and air mixing effect is poor in the prior art, and provides a gas nozzle assembly and gas stove.

[0004] The utility model solves the above technical problem by the following technical scheme:

[0005] A gas nozzle assembly, the gas nozzle assembly comprises a nozzle body and a nozzle seat, the nozzle seat comprises a mounting portion, a gas passage is arranged in the mounting portion, the nozzle body is connected to a gas outlet end of the gas passage, an air passage is further arranged in the mounting portion, and a gas outlet of the air passage is arranged around the gas outlet end of the gas passage and on the same side as the gas outlet end of the gas passage.

[0006] In the present scheme, the nozzle body is arranged in the gas passage, can spray gas outward through the gas outlet, and the external air is introduced for mixing with the gas for combustion in the process of the nozzle body spraying gas due to the pressure difference and other reasons. There is a spacing distance between the air passage and the gas passage, the two passages respectively pass air and gas, and the air and the gas are independent of each other before entering the mixing space at the front end. The gas outlet of the nozzle body and the gas outlet of the air passage are on the same side, so that when the nozzle body sprays gas, the air flowing out of the gas outlet of the air passage can be effectively introduced under the action of the high-speed flowing gas, the amount of the introduced air is increased, which helps the better mixing of the gas and the air, and the flow rate of the gas and the air entering the injection pipe is reduced, which is more conducive to the mixing effect of the gas and the air. After the more oxygen and the gas are fully mixed, the combustion process can be promoted, thereby improving the combustion efficiency and reducing the generation of smoke and harmful gas.

[0007] Preferably, the air inlet of the air channel is located on the side wall of the mounting portion to communicate with the outside, the air outlet is located on the end wall of the mounting portion, and the air channel is configured as a straight air channel.

[0008] In this scheme, the air channel is designed in a straight form, which helps to simplify the air flow path and reduce the bends and obstructions in the air flow process, reducing the complexity of air flow and helping to improve the efficiency of air flow; the air inlet is located on the side wall of the mounting portion to ensure that the outside air can smoothly enter the air channel without unnecessary turns or restrictions. This can increase the amount of air introduced, thereby improving combustion efficiency.

[0009] Preferably, there is an included angle between the axis direction of the air channel and the axis direction of the nozzle body, and the distance from the air outlet to the axis of the nozzle body is less than the distance from the air inlet to the axis direction of the nozzle body.

[0010] In this scheme, when there is an included angle between the axis direction of the air channel and the axis direction of the nozzle body, the air can be effectively guided to the surroundings of the nozzle, and the design of the included angle makes the positioning of the air channel and the nozzle more accurate, which helps the air and gas to mix better and improves the combustion efficiency. When the distance from the air outlet to the axis of the nozzle body is less than the distance from the air inlet, the air can be closer to the nozzle body, providing a more direct and concentrated flow path, which helps the gas and air to mix sufficiently before combustion, ensuring more complete and efficient combustion.

[0011] Preferably, the air channel is provided in multiple, and the multiple air channels are circumferentially spaced around the gas channel.

[0012] In this scheme, by providing multiple air channels and spacing them circumferentially along the mounting portion, a uniform air flow can be formed around the entire nozzle body, increasing the air entrainment while forming a stable airflow environment. The stable airflow environment helps to maintain uniform mixing of gas and air, thereby achieving more effective mixing. By more effectively mixing gas and air, combustion efficiency can be improved and harmful gas emissions from incomplete combustion can be reduced. This helps to reduce the environmental impact of gas stoves and promotes the use of clean energy and environmental protection.

[0013] Preferably, the gas nozzle assembly further comprises a joint for introducing gas, and the gas inlet end of the gas channel is connected to the joint.

[0014] In this scheme, gas is introduced through the joint and then discharged from the nozzle body at one end after passing through the gas channel. The flow of gas is uninterrupted, and the gas flows directly into the nozzle body, avoiding waste.

[0015] Preferably, along the axis direction of the gas channel, the inner diameter of the gas channel gradually decreases and the size of the end towards the nozzle body is smaller than the size of the end towards the joint.

[0016] In the scheme, the gradually reduced size of the gas passage can make the gas flowing into the nozzle body be pressurized, thereby increasing the gas flow speed and improving the ejecting effect.

[0017] Preferably, a nozzle passage is formed in the nozzle body, a joint passage is formed in the joint, and the nozzle passage, the joint passage and the gas passage jointly form a gas passage for the gas to pass through, and the inner walls of the gas passage are all smooth surfaces.

[0018] In the scheme, the nozzle passage, the joint passage and the gas passage jointly form a gas passage for the gas to pass through, which helps to optimize the flow of the gas, and the smooth surfaces of the inner walls of the passages can reduce the frictional resistance and turbulence when the gas flows, thereby reducing energy loss and improving the transmission efficiency of the gas.

[0019] Preferably, the nozzle assembly further comprises a damper blade, and the mounting portion further comprises a first outer diameter section and a second outer diameter section; the first outer diameter section and the second outer diameter section are arranged in sequence along the axis direction of the gas passage, the outer diameter of the first outer diameter section is smaller than the outer diameter of the second outer diameter section, the nozzle body is connected to the first outer diameter section, and the damper blade is sleeved outside the second outer diameter section.

[0020] In the scheme, the different sizes of the first outer diameter section and the second outer diameter section form a stepped structure when they are connected, which is conducive to installation and the introduction of side air, and the different positions of the damper blade can change the spacing distance between the damper blade and the ejector pipe, thereby adjusting the amount of air injected, and the damper blade sleeved outside the second outer diameter section can be flexibly adjusted in position as needed.

[0021] Preferably, the damper blade is threadedly connected to the first outer diameter section, the nozzle assembly further comprises an elastic member, the elastic member is sleeved on the second outer diameter section, and one end of the elastic member abuts against the damper blade to apply a force to the damper blade towards the first outer diameter section.

[0022] In the scheme, the threaded connection makes the position adjustment of the damper blade more convenient, and the abutment of the elastic member against the damper blade and the provision of elasticity to the damper blade can effectively limit the movement of the damper blade and avoid displacement of the damper blade under the action of external forces such as pressure.

[0023] A gas stove comprises the gas nozzle assembly described above.

[0024] In the scheme, the gas stove equipped with the above-mentioned gas nozzle assembly can achieve higher combustion efficiency, stable flame, energy saving and emission reduction, and improvement of user experience, thereby providing a more high-quality cooking experience and an environmentally friendly and energy-saving gas stove option.

[0025] The positive progress effect of the utility model lies in:

[0026] The nozzle body is located inside the gas passage and can inject gas outward through the gas outlet. During the gas injection process, external air is introduced due to factors such as gas pressure difference to mix with the gas and then burn. There is a gap between the air passage and the gas passage, and the two passages are used for air and gas respectively. They are independent of each other before entering the mixing space at the front end. The air outlet of the air passage and the gas outlet of the nozzle body are on the same side. Therefore, when the nozzle body injects gas, the high-speed gas flow can effectively introduce air flowing out of the air outlet of the air passage, increasing the amount of air injected and helping the gas and gas to mix better. At this time, the flow rate of gas and air entering the ejector tube is reduced, which is more conducive to the mixing effect of gas and air. After more oxygen is fully mixed with the gas, it can promote a more complete combustion process, thereby improving combustion efficiency and reducing the generation of smoke and harmful gases. Attached Figure Description

[0027] Figure 1 This is a three-dimensional structural schematic diagram of a gas nozzle assembly according to an embodiment of the present invention;

[0028] Figure 2 This is a top view of a gas nozzle assembly according to an embodiment of the present invention;

[0029] Figure 3 This is a front view of a gas nozzle assembly according to an embodiment of the present invention.

[0030] Figure 4 For along Figure 3 A schematic diagram of the cross-sectional structure of the gas nozzle assembly as shown by line AA;

[0031] Figure 5 This is a three-dimensional structural diagram of a burner according to an embodiment of the present invention.

[0032] Explanation of reference numerals in the attached figures:

[0033] 100 Gas Nozzle Assembly

[0034] 110 Nozzle Body

[0035] 120 Nozzle Seat

[0036] 1201 fixing hole

[0037] 121 Installation Department

[0038] 1211 Gas Channel

[0039] 1212 air passage

[0040] 1213 Exhaust end

[0041] 1214 air outlet

[0042] 1215 air intake

[0043] 1216 First outer diameter section

[0044] 1217 Second outer diameter section

[0045] 122 connector

[0046] 123 Air damper plate

[0047] 124 elastic element

[0048] 200 burner

[0049] 210 inner ring ejector tube

[0050] 220 outer ring ejector tube Detailed Implementation

[0051] The present invention will be described more clearly and completely below with reference to the accompanying drawings, using a preferred embodiment.

[0052] like Figures 1-5 As shown, this embodiment provides a gas nozzle assembly 100, which includes a nozzle body 110 and a nozzle seat 120. The nozzle seat 120 includes a mounting portion 121, in which a gas passage 1211 is provided. The nozzle body 110 is connected to the gas outlet 1213 of the gas passage 1211. An air passage 1212 is also provided in the mounting portion 121. The air outlet 1214 of the air passage 1212 is located around the gas outlet 1213 of the gas passage 1211 and faces the same side as the gas outlet 1213 of the gas passage 1211.

[0053] In this embodiment, the nozzle body 110 is disposed within the gas passage 1211 and can inject gas outward through the gas outlet. During the gas injection process, external air is introduced into the nozzle body 110 due to pressure difference and other reasons to mix with the gas and then burn. There is a gap between the air passage 1212 and the gas passage 1211. The two passages are respectively circulated by air and gas. They are independent of each other before entering the mixing space at the front end. The air outlet 1214 of the air passage 1212 and the gas outlet of the nozzle body 110 are on the same side. Therefore, when the nozzle body 110 injects gas, the air flowing out of the air outlet 1214 of the air passage 1212 can be effectively introduced under the action of the high-speed gas flow, which increases the amount of air injected and helps the gas and gas mix better. At this time, the flow rate of gas and air entering the ejector tube is reduced, which is more conducive to the mixing effect of gas and air. After more oxygen is fully mixed with the gas, it can promote a more complete combustion process, thereby improving combustion efficiency and reducing the generation of smoke and harmful gases.

[0054] likeFigure 4 As shown, the air inlet 1215 of the air passage 1212 is located on the side wall of the mounting portion 121 for communication with the outside, and the air outlet 1214 is located on the end wall of the mounting portion 121. The air passage 1212 is configured as a straight air passage. The straight design of the air passage 1212 helps simplify the airflow path, reduces bends and obstructions in the airflow process, lowers the complexity of the airflow, and helps improve the efficiency of the airflow. Alternatively, the air passage 1212 may also have a certain degree of curvature.

[0055] The air inlet 1215 is located on the side wall of the mounting portion 121, ensuring that outside air can smoothly enter the air passage 1212 without any unnecessary bends or restrictions. This increases the air intake, thereby improving combustion efficiency. Alternatively, the air inlet can also be located on the wall surface opposite to the end arm where the air outlet 1214 is located, as long as it allows air to enter from around the mounting portion 121.

[0056] like Figures 2-4 As shown, there is an angle between the axial direction of the air passage 1212 and the axial direction of the nozzle body 110. The tilt of the air passage 1212 relative to the nozzle body 110 can be adjusted by adjusting the size of the angle. While keeping both the air passage 1212 and the nozzle body 110 facing the injector, adjusting the angle between them can adjust the amount of air injected per unit time during gas injection. Furthermore, the distance from the outlet 1214 to the axial direction of the nozzle body 110 is less than the distance from the inlet 1215 to the axial direction of the nozzle body 110. When there is an angle between the axial direction of the air passage 1212 and the axial direction of the nozzle body 110, air can be effectively guided to the vicinity of the nozzle. The angle design makes the positioning of the air passage 1212 and the nozzle more precise, which helps to better mix air and gas and improve combustion efficiency. When the distance between the outlet 1214 and the axis of the nozzle body 110 is less than the distance between the inlet 1215 and the outlet, the air can get closer to the nozzle body 110, providing a more direct and concentrated flow path, which helps the gas and air to mix fully before combustion, ensuring more complete and efficient combustion.

[0057] In this embodiment, multiple air channels 1212 are provided, which are circumferentially spaced around the gas channel 1211. This allows for uniform airflow around the entire nozzle body 110, increasing the air entrainment volume while creating a stable airflow environment. This stable airflow environment helps maintain a uniform mixture of gas and air, resulting in more efficient mixing. By mixing gas and air more effectively, combustion efficiency can be improved and harmful gas emissions from incomplete combustion can be reduced. This helps reduce the environmental impact of the gas stove, promoting the use of clean energy and environmental protection.

[0058] like Figure 4 As shown, the gas nozzle assembly 100 also includes a connector 122 for introducing gas. The gas inlet end of the gas passage 1211 is connected to the connector 122. Gas is introduced through the connector 122 and then sprayed out from the nozzle body 110 at one end after passing through the gas passage 1211. The gas flow is uninterrupted, and the gas flows directly into the nozzle body 110, avoiding waste.

[0059] like Figure 4 As shown, along the axial direction of the gas passage 1211, the inner diameter of the gas passage 1211 gradually decreases, and the size of the end facing the nozzle body 110 is smaller than the size of the end facing the connector 122. The gradually decreasing size of the gas passage 1211 allows the gas flowing into the nozzle body 110 to be pressurized, thereby increasing the gas flow velocity and thus improving the ejection effect.

[0060] In this embodiment, a nozzle channel is formed within the nozzle body 110, and a connector channel is formed within the connector 122. The nozzle channel, connector channel, and gas channel 1211 together form a gas channel for gas to pass through. The inner walls of the gas channels are all smooth surfaces, which helps to optimize gas flow. The smooth surface of the channel inner wall can reduce frictional resistance and turbulence during gas flow, thereby reducing energy loss and improving gas transmission efficiency. Here, "smooth surface" refers to an inner wall without steps or sharp edges that would obstruct the smooth transmission of air. The dimensions of the nozzle channel and the connector channel at the junction with the gas channel are consistent with the gas channel to avoid such uneven parts.

[0061] like Figures 1-4 As shown, the nozzle assembly also includes a damper 123, and the mounting portion 121 includes a first outer diameter section 1216 and a second outer diameter section 1217. Along the axial direction of the gas passage 1211, the first outer diameter section 1216 and the second outer diameter section 1217 are arranged sequentially. The outer diameter of the first outer diameter section 1216 is smaller than the outer diameter of the second outer diameter section 1217. The nozzle body 110 is connected to the first outer diameter section 1216, and the damper 123 is fitted onto the outside of the second outer diameter section 1217. The difference in size between the first outer diameter section 1216 and the second outer diameter section 1217 creates a stepped structure at their connection, which facilitates installation and the introduction of side air. The position of the damper 123 can change the distance between it and the ejector tube, thereby adjusting the amount of air ejected. The damper 123 fitted onto the outside of the second outer diameter section 1217 can be flexibly adjusted in position as needed.

[0062] In this embodiment, the damper plate 123 is threadedly connected to the first outer diameter section 1216. The nozzle assembly also includes an elastic element 124, which is sleeved on the second outer diameter section 1217. One end of the elastic element 124 abuts against the damper plate 123 to apply a force toward the first outer diameter section 1216 to the damper plate 123. The damper plate 123 is provided with an internal thread, and the first outer diameter section 1216 is provided with an external thread. The threaded connection between the two makes the position adjustment of the damper plate 123 more convenient. The elastic element 124 abuts against the damper plate 123 and provides elastic force to effectively limit the movement of the damper plate 123 and prevent it from displacing under the action of external forces such as pressure.

[0063] In other alternative embodiments, the damper plate 123 and the first outer diameter section 1216 can also be connected by a snap-fit ​​method for easy quick assembly and disassembly.

[0064] This embodiment also provides a gas stove, such as Figures 2-5 As shown, the gas stove includes the gas nozzle assembly 100 as described above. The gas stove also includes a burner 200, an inner ring ejector tube 210, and an outer ring ejector tube 220. Two mounting portions 121 of the nozzle seat 120 assembly are correspondingly arranged with the inner ring ejector tube 210 and the outer ring ejector tube 220. A gap exists between the nozzle body 110 and the ejector tubes, and the damper plate 123 and the front end face of the ejector tubes form an air inlet channel. The portion of the burner 200 facing the nozzle seat 120 has two connecting holes, and the nozzle seat 120 has corresponding fixing holes 1201 for bolting the nozzle assembly and the burner 200. In other alternative embodiments, the connection can be achieved through other means, such as snap-fit ​​or clamp connection.

[0065] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship of the device or component during normal use. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation at any time, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model in this respect.

[0066] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A gas nozzle assembly, characterized by, The gas nozzle assembly comprises a nozzle body and a nozzle seat, the nozzle seat comprises a mounting portion, a gas passage is arranged in the mounting portion, the nozzle body is connected to a gas outlet end of the gas passage, an air passage is also arranged in the mounting portion, and a gas outlet of the air passage is arranged around the gas outlet end of the gas passage and on the same side as the gas outlet end of the gas passage.

2. The gas nozzle assembly of claim 1, wherein, The gas inlet of the air passage is arranged on a side wall of the mounting portion to communicate with the outside, the gas outlet is arranged on an end wall of the mounting portion, and the air passage is configured as a straight air passage.

3. The gas nozzle assembly of claim 2, wherein, The air passage has an angle with the axis direction of the nozzle body, and the distance between the gas outlet and the axis of the nozzle body is smaller than the distance between the gas inlet and the axis of the nozzle body.

4. The gas nozzle assembly of claim 1, wherein, The air passage is arranged in multiple, and the multiple air passages are arranged circumferentially around the gas passage.

5. The gas nozzle assembly of claim 4, wherein, The gas nozzle assembly further comprises a joint for gas inlet, and the gas inlet end of the gas passage is connected to the joint.

6. The gas nozzle assembly of claim 5, wherein, In the axis direction of the gas passage, the inner diameter of the gas passage is tapered, and the size of the end of the nozzle body is smaller than the size of the end towards the joint.

7. The gas nozzle assembly of claim 5, wherein, A nozzle passage is formed in the nozzle body, a joint passage is formed in the joint, the nozzle passage, the joint passage and the gas passage jointly form a gas passage for gas passing, and the inner wall of the gas passage is a smooth surface.

8. The gas nozzle assembly of claim 1, wherein, The nozzle assembly further comprises a damper blade, and the mounting portion further comprises a first outer diameter section and a second outer diameter section; in the axis direction of the gas passage, the first outer diameter section and the second outer diameter section are arranged in sequence, the outer diameter of the first outer diameter section is smaller than the outer diameter of the second outer diameter section, the nozzle body is connected to the first outer diameter section, and the damper blade is sleeved on the outside of the second outer diameter section.

9. The gas jet assembly of claim 8, wherein, The damper blade is threadedly connected to the first outer diameter section, the nozzle assembly further comprises an elastic member, the elastic member is sleeved on the second outer diameter section, and one end of the elastic member abuts against the damper blade to apply a force to the damper blade towards the first outer diameter section.

10. A gas hob, characterized in that The gas stove comprises the gas nozzle assembly according to any one of claims 1-9.

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