Gas nozzle structure, burner assembly and cooking stove

Abstract

The present invention discloses a gas nozzle structure, a burner assembly, and a cooking stove. The gas nozzle structure includes a nozzle body, the nozzle body includes a nozzle, an air passage is provided inside the nozzle, the first end of the nozzle is provided with a conical side surface that is recessed toward the middle of the nozzle with the air passage as the center, the conical side surface is provided with multiple gas outlet grooves, and the gas outlet grooves pass through the air passage and the outer side of the nozzle; an air guide portion is provided at the first end of the nozzle, and a conical portion that protrudes away from the middle of the air guide portion is provided on the side of the conical side surface of the air guide portion facing the conical side surface, and the conical side surface of the conical portion is in contact with the conical side surface. The burner assembly disclosed in the present invention includes the above-mentioned gas nozzle structure. The cooking stove provided by the present invention includes the above-mentioned burner assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of kitchen appliances, and in particular to a gas nozzle structure, a burner assembly and a cooking stove. Background Art

[0002] To improve burner combustion efficiency, existing technologies typically ensure sufficient primary and secondary air to prevent incomplete combustion. However, within the confined space of the gas supply pipe, even with sufficient air supply, it is difficult to ensure adequate mixing with the gas, which in turn affects combustion efficiency.

[0003] Therefore, a gas nozzle structure is urgently needed to solve the above problems. Summary of the Invention

[0004] The present invention aims to solve at least one of the problems existing in the existing related technologies to a certain extent. To this end, the present invention proposes a gas nozzle structure that can improve the mixing effect between gas and air and improve combustion efficiency.

[0005] The above purpose is achieved through the following technical solutions:

[0006] A gas nozzle structure, comprising:

[0007] A nozzle body, the nozzle body including a nozzle, an air passage being provided inside the nozzle, a first end of the nozzle being provided with a conical side surface concave toward the middle of the nozzle with the air passage as the center, the conical side surface being provided with a plurality of air outlet grooves, the air outlet grooves being provided through the air passage and the outer side of the nozzle;

[0008] The air guide portion is arranged at the first end of the nozzle, and a cone portion protruding away from the middle of the air guide portion is provided on the side of the air guide portion facing the side of the truncated cone, and the conical side surface of the cone portion is in contact with the side surface of the truncated cone.

[0009] Optionally, an angle a is formed between the air outlet groove and a plane on which the circumferential side of the truncated cone side surface is located, where 0<a<90°.

[0010] Optionally, the angle a is 45°.

[0011] Optionally, the distance between two adjacent air outlet grooves is the same.

[0012] Optionally, the nozzle is detachably connected to the air guide portion.

[0013] Optionally, one of a first buckle and a hook is provided on the side surface of the first end of the nozzle, and the other of the first buckle and the hook is provided on the side surface of the air guide portion close to the nozzle, and the hook is buckled with the first buckle.

[0014] Optionally, it also includes a damper assembly and a limiting component, the nozzle is provided with an external connecting thread, the external connecting thread is provided on the nozzle at a position close to the side of the truncated cone, the gas nozzle structure is threadedly connected to the burner body of the cooking stove through the external connecting thread, the limiting component is provided on the nozzle and is located on the side of the connecting thread away from the side of the truncated cone, the damper assembly is installed on the nozzle through the limiting component, the limiting component can limit the damper assembly to move relative to the nozzle in a direction away from the side of the truncated cone, and can limit the damper assembly to rotate relative to the nozzle.

[0015] Optionally, the limiting component includes a first limiting member and a second limiting member, the damper assembly includes a damper fixing plate and a damper adjustment plate detachably connected to the damper fixing plate, a first mounting hole is provided in the middle of the damper fixing plate, a card slot is provided on the inner side wall of the first mounting hole, a second mounting hole is provided in the middle of the damper adjustment plate, the nozzle passes through the first mounting hole and the second mounting hole, the first limiting member is provided on the outer peripheral side of the nozzle and abuts against the side of the damper fixing plate away from the side of the cone, for limiting the damper assembly from sliding relative to the nozzle in a direction away from the side of the cone, and the second limiting member is provided on the outer peripheral side of the nozzle and extends into the card slot, for limiting the damper fixing plate from rotating relative to the nozzle.

[0016] Optionally, a second buckle is provided on the peripheral side of the damper adjustment plate, and the second buckle can be engaged with the peripheral side of the damper fixing plate to connect the damper adjustment plate and the damper fixing plate.

[0017] Another aspect of the present invention provides a burner head assembly, comprising a burner head body and the above-mentioned gas nozzle structure, wherein the gas nozzle structure is connected to the burner head body.

[0018] In another aspect, the present invention provides a cooking stove comprising the burner assembly described above.

[0019] Compared with the prior art, the present invention has at least the following beneficial effects:

[0020] The gas nozzle structure provided by the present invention is used in a burner assembly to supply gas to the burner assembly. The gas nozzle structure includes a nozzle body and a gas guide portion. The nozzle body includes a nozzle, an air passage disposed within the nozzle, and a first end of the nozzle having a conical side surface recessed toward the center of the nozzle, centered about the air passage. The conical side surface is provided with a plurality of gas outlet grooves, which extend through the air passage and the outer side of the nozzle. The gas guide portion is disposed at the first end of the nozzle, and a conical portion is disposed on the side of the gas guide portion facing the conical side surface, which protrudes toward the center away from the gas guide portion. The conical side surface of the conical portion abuts against the conical side surface, thereby blocking the openings of the gas outlet grooves on the conical side surface. This allows the gas to flow only along the gas outlet grooves and ultimately out the side of the nozzle. When the gas in the air passage reaches the conical portion, it is dispersed by the conical portion, then enters the gas outlet grooves and then out the side of the nozzle. The dispersed gas is effectively mixed with air, thereby improving the combustion efficiency of the burner assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic diagram of the three-dimensional structure of a gas nozzle structure provided by a specific embodiment of the present invention;

[0022] Figure 2 yes Figure 1 The main view;

[0023] Figure 3 yes Figure 1 Exploded view of

[0024] Figure 4 yes Figure 1 Right view;

[0025] Figure 5 yes Figure 4 Cross-section at the middle CC;

[0026] Figure 6 1 is a schematic diagram of the three-dimensional structure of a nozzle of a gas nozzle structure provided by a specific embodiment of the present invention;

[0027] Figure 7 yes Figure 6 The main view;

[0028] Figure 8 A schematic diagram of the three-dimensional structure of the gas guide portion of the nozzle of the gas nozzle structure provided by a specific embodiment of the present invention;

[0029] Figure 9 yes Figure 6 Right view;

[0030] Figure 10 is a schematic diagram of the three-dimensional structure of a nozzle of a gas nozzle structure provided by another specific embodiment of the present invention;

[0031] Figure 11 yes Figure 10 The main view;

[0032] Figure 12 yes Figure 10 Right view of .

[0033] In the picture:

[0034] 1. Nozzle body; 10. Air channel; 11. Nozzle; 12. Cone side; 121. Air outlet groove; 13. First buckle; 14. External connection thread;

[0035] 2. Damper assembly; 21. Damper fixing plate; 211. First mounting hole; 2111. Card slot; 22. Damper adjustment plate; 221. Second mounting hole; 222. Second buckle; 223. Handle;

[0036] 3. Air guide portion; 31. Cone portion; 32. Hook;

[0037] 4. First position-limiting member; 41. Second position-limiting member. DETAILED DESCRIPTION

[0038] The following examples illustrate the present invention, but the present invention is not limited to these examples. Modifications to the specific embodiments of the present invention or equivalent replacements of some technical features without departing from the spirit of the present invention should be included in the scope of the technical solution claimed in the present invention.

[0039] Please refer to Figures 1-11 The present invention provides a gas nozzle structure for use in a burner assembly to provide fuel gas for the burner assembly. The gas nozzle structure includes a nozzle body 1 and a gas guide 3. The nozzle body 1 includes a nozzle 11, an air passage 10 being provided inside the nozzle 11, a first end of the nozzle 11 being provided with a conical side surface 12 which is concave toward the middle of the nozzle 11 with the air passage 10 as the center, a plurality of gas outlet grooves 121 being provided on the conical side surface 12, and the gas outlet grooves 121 being provided through the air passage 10 and the outer side of the nozzle 11. The gas guide 3 is provided at the first end of the nozzle 11, and a conical body portion which is convex toward the middle of the gas guide 3 and away from the gas guide 3 is provided on the side of the conical side surface 12. The conical side surface of the conical body portion is in contact with the conical side surface 12, so that the opening of the gas outlet groove 121 on the conical side surface 12 is blocked, thereby allowing the gas to flow only along the gas outlet groove 121 and finally flow out from the peripheral side of the nozzle 11. When the gas in the gas passage 10 reaches the cone portion 31, it is dispersed by the cone portion, and then enters the gas outlet grooves 121 respectively, and then flows out from the peripheral side of the nozzle 11. The dispersed gas will be well mixed with the air, thereby improving the combustion efficiency of the burner assembly.

[0040] In one embodiment, if Figures 9-11As shown, the angle a between the gas outlet groove 121 and the circumference of the cone side surface 12 is 90°. In this case, after the gas flows out from the circumference of the nozzle 11, it can only mix with the air under the action of air pressure, and the mixing effect is not optimal.

[0041] To improve the mixing effect between air pressure and air, in another embodiment, as Figures 1-8 As shown, optionally, there is an angle a between the gas outlet groove 121 and the plane where the peripheral side of the truncated cone side surface 12 is located, and the angle a is 45 degrees. In this case, the gas will rotate around the peripheral side of the nozzle 11 after flowing out from the peripheral side of the nozzle 11 (the gas rotates along the peripheral side of the nozzle 11). Figure 8 The gas flows in the direction indicated by the arrow B), thereby driving the air flow and improving the mixing effect of the gas and air.

[0042] In other embodiments, the angle a may also take other values within the range of 0<a<90°. The smaller the angle a, the more pronounced the effect of the gas rotating around the circumference of the nozzle 11 after flowing out of the circumference of the nozzle 11, thereby enhancing the mixing effect of the gas and air. Those skilled in the art may select different values of the angle a according to actual needs.

[0043] Optionally, the distances between two adjacent gas outlet grooves 121 are the same to improve the uniformity of the gas.

[0044] Optionally, the nozzle 11 and the air guide portion 3 are detachably connected to facilitate separate manufacturing of the nozzle 11 and the air guide portion 3 .

[0045] Optionally, one of the first clip 13 and the hook 32 is provided on the side of the first end of the nozzle 11, and the other of the first clip 13 and the hook 32 is provided on the side of the air guide part 3 close to the nozzle 11, and the hook 32 is buckled with the first clip 13, thereby realizing a detachable connection between the nozzle 11 and the air guide part 3.

[0046] Optionally, it also includes a damper assembly 2 and a limiting component. The nozzle 11 is provided with an external connecting thread 14, and the external connecting thread 14 is arranged at a position close to the truncated cone side 12 of the nozzle 11. The gas nozzle structure is threadedly connected to the burner body of the cooking stove through the external connecting thread 14. The limiting component is arranged on the nozzle 11 and is located on the side of the connecting thread away from the truncated cone side 12. The damper assembly 2 is installed on the nozzle 11 through the limiting component. The limiting component can limit the movement of the damper assembly 2 relative to the nozzle 11 in a direction away from the truncated cone side 12, and can limit the rotation of the damper assembly 2 relative to the nozzle 11. When the nozzle 11 is threadedly connected to the burner body through the external connecting thread 14, it can cooperate with the limiting component to fix the damper assembly 2 on the nozzle 11, which solves the problem in the prior art of using a spring to compress the damper assembly 2, the spring's strength decreases in a high temperature environment, and its service life is reduced, thereby affecting the stability of the gas nozzle structure.

[0047] Optionally, the limiting component includes a first limiting member 4 and a second limiting member 41, the damper assembly 2 includes a damper fixing plate 21 and a damper adjustment plate 22 detachably connected to the damper fixing plate 21, a first mounting hole 211 is opened in the middle of the damper fixing plate 21, a card slot 2111 is opened on the inner side wall of the first mounting hole 211, a second mounting hole 221 is opened in the middle of the damper adjustment plate 22, the nozzle 11 passes through the first mounting hole 211 and the second mounting hole 221, the first limiting member 4 is arranged on the outer peripheral side of the nozzle 11 and abuts against the side of the damper fixing plate 21 away from the conical side surface 12, for limiting the damper assembly 2 from sliding relative to the nozzle 11 in the direction away from the conical side surface 12, the second limiting member 41 is arranged on the outer peripheral side of the nozzle 11 and extends into the card slot 2111, for limiting the damper fixing plate 21 from rotating relative to the nozzle 11.

[0048] Optionally, a second buckle 222 is provided on the circumference of the damper adjustment plate 22. The second buckle 222 can be engaged with the circumference of the damper fixing plate 21 to connect the damper adjustment plate 22 and the damper fixing plate 21. After the damper adjustment plate 22 is adjusted to a preset position relative to the damper fixing plate 21, the damper adjustment plate 22 can be fixed to the fixing plate via the second buckle 222.

[0049] Optionally, a handle 223 is further provided on the outer side of the damper adjustment plate 22 to facilitate adjustment of the position of the damper adjustment plate 22 relative to the damper fixing plate 21 .

[0050] Another aspect of the present invention provides a burner head assembly, comprising a burner head body and the above-mentioned gas nozzle structure, wherein the gas nozzle structure is connected to the burner head body.

[0051] In another aspect, the present invention provides a cooking stove comprising the burner assembly described above.

[0052] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, which all fall within the scope of protection of the present invention.

Claims

1. A gas nozzle structure, characterized in that: include: A nozzle body (1), the nozzle body (1) comprising a nozzle (11), an air passage (10) being provided in the nozzle (11), a first end of the nozzle (11) being provided with a truncated cone side surface (12) which is concave toward the middle of the nozzle (11) with the air passage (10) as the center, a plurality of air outlet grooves (121) being provided on the truncated cone side surface (12), the air outlet grooves (121) being provided through the air passage (10) and the outer side of the nozzle (11); An air guide portion (3) is provided at the first end of the nozzle (11); a cone portion (31) protruding away from the middle of the air guide portion (3) is provided on the side of the air guide portion (3) facing the truncated cone side (12); the conical side of the cone portion (31) is in contact with the truncated cone side (12); an angle a is formed between the air outlet groove (121) and the plane where the circumferential side of the truncated cone side (12) is located, 0<a<90°; and the distances between two adjacent air outlet grooves (121) are the same.

2. The gas nozzle structure according to claim 1, characterized in that: The angle a is 45°.

3. The gas nozzle structure according to claim 1, characterized in that: The nozzle (11) is detachably connected to the air guide portion (3).

4. The gas nozzle structure according to claim 3, characterized in that: One of a first buckle (13) and a hook (32) is provided on the side surface of the first end of the nozzle (11), and the other of the first buckle (13) and the hook (32) is provided on the side surface of the air guide portion (3) close to the nozzle (11), and the hook (32) is buckled with the first buckle (13).

5. The gas nozzle structure according to any one of claims 1 to 4, characterized in that: The invention also includes an air damper assembly (2) and a limiting component. The nozzle (11) is provided with an external connecting thread (14). The external connecting thread (14) is provided at a position of the nozzle (11) close to the truncated cone side (12). The gas nozzle structure is threadedly connected to the burner body of the cooking stove through the external connecting thread (14). The limiting component is provided on the nozzle (11) and is located on a side of the external connecting thread (14) away from the truncated cone side (12). The air damper assembly (2) is installed on the nozzle (11) through the limiting component. The limiting component can limit the air damper assembly (2) from moving relative to the nozzle (11) in a direction away from the truncated cone side (12) and can limit the air damper assembly (2) from rotating relative to the nozzle (11).

6. The gas nozzle structure according to claim 5, characterized in that: The limiting component comprises a first limiting component (4) and a second limiting component (41); the damper assembly (2) comprises a damper fixing plate (21) and a damper adjustment plate (22) detachably connected to the damper fixing plate (21); a first mounting hole (211) is provided in the middle of the damper fixing plate (21); a slot (2111) is provided on the inner side wall of the first mounting hole (211); a second mounting hole (221) is provided in the middle of the damper adjustment plate (22); the nozzle (11) passes through the first mounting hole (211); ) and the second mounting hole (221) are provided, the first limiting member (4) is provided on the outer peripheral side of the nozzle (11) and abuts against the side of the damper fixing plate (21) away from the truncated cone side (12), and is used to limit the damper assembly (2) from sliding relative to the nozzle (11) in a direction away from the truncated cone side (12), and the second limiting member (41) is provided on the outer peripheral side of the nozzle (11) and extends into the card slot (2111), and is used to limit the damper fixing plate (21) from rotating relative to the nozzle (11).

7. The gas nozzle structure according to claim 6, characterized in that: A second buckle (222) is provided on the peripheral side of the damper adjustment plate (22), and the second buckle (222) can be engaged with the peripheral side of the damper fixing plate (21) to connect the damper adjustment plate (22) and the damper fixing plate (21).

8. A cooking stove, characterized in that: It comprises a burner head assembly, and the burner head assembly comprises the gas nozzle structure according to any one of claims 1-7.

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