Flow guide structure, furnace end assembly and gas stove

Abstract

The utility model provides a flow guide structure, a burner assembly and a gas stove, and relates to the technical field of kitchen appliances, the flow guide structure comprises a first annular side wall and a second annular side wall; the first annular side wall is arranged on the outer side of the second annular side wall in a sleeving mode, and ribs are connected between the first annular side wall and the second annular side wall. A rib is connected between the first annular side wall and the second annular side wall and can fully divide and disturb airflow at the air outlet of the flow guide structure, so that gas and air are fully mixed, the gas is fully combusted, waste gas is reduced, and heat efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen appliances, in particular to a flow guide structure, a burner assembly and a gas stove. Background Art

[0002] A gas stove is a kitchen appliance that uses gas fuel for direct heating and is a commonly used kitchen appliance.

[0003] When the gas stove is in operation, the burner is in direct contact with the burner. To prevent damage to the mating surface between the burner and the burner, a guide piece is provided on the burner to mate with the burner.

[0004] The existing guide piece has a sleeve-shaped structure, and the gas and air at the outlet of the guide piece are not fully mixed, which will lead to incomplete combustion of the gas and a large amount of exhaust gas. Utility Model Content

[0005] The purpose of the utility model is to provide a flow guide structure to solve the technical problem of insufficient mixing of gas and air at the outlet of the flow guide in the prior art.

[0006] The flow guide structure provided by the utility model includes a first annular side wall and a second annular side wall;

[0007] The first annular side wall is sleeved on the outside of the second annular side wall, and a rib is connected between the first annular side wall and the second annular side wall.

[0008] Furthermore, there are multiple ribs, and the multiple ribs are arranged at intervals along the circumference of the first annular side wall.

[0009] Furthermore, the ribs are arranged in a spiral shape around the axis of the second annular side wall.

[0010] Furthermore, along the axial direction of the second annular side wall, the top end of the second annular side wall protrudes from the top end of the first annular side wall, and the bottom end of the second annular side wall protrudes from the bottom end of the first annular side wall.

[0011] Furthermore, along the axial direction of the second annular side wall, the diameter of the second annular side wall gradually decreases from the bottom end to the top end.

[0012] Furthermore, the first annular side wall includes a first annular portion, a connecting portion, and a second annular portion connected in sequence, the first annular portion is arranged above the second annular portion, and a diameter of the first annular portion is smaller than a diameter of the second annular portion.

[0013] The purpose of the present invention is also to provide a burner head assembly, comprising a burner head body and a flow guide structure provided by the present invention;

[0014] The burner body comprises a first cavity and a second cavity which are independent of each other, wherein the first cavity is sleeved on the outside of the second cavity;

[0015] The bottom end of the first annular side wall is connected to the top end of the first cavity, and the bottom end of the second annular side wall is connected to the top end of the second cavity.

[0016] Furthermore, the melting point of the burner body is lower than the melting point of the guide structure.

[0017] Furthermore, the flow guide structure is embedded in the furnace head body as a whole.

[0018] The present invention also aims to provide a gas stove, including the flow guide structure provided by the present invention or the burner head assembly provided by the present invention.

[0019] The present invention provides a flow-guiding structure comprising a first annular sidewall and a second annular sidewall; the first annular sidewall is sleeved outside the second annular sidewall, and ribs are connected between the first and second annular sidewalls. The ribs connect the first and second annular sidewalls, and can fully divide and disrupt the airflow at the outlet of the flow-guiding structure, allowing for thorough mixing of gas and air, ensuring complete combustion of the gas, reducing waste gas generation, and improving thermal efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 This is a schematic structural diagram of the diversion structure provided by an embodiment of the present utility model;

[0022] Figure 2 This is a structural diagram of a burner head assembly provided by an embodiment of the present utility model;

[0023] Figure 3 It is a cross-sectional view of a burner head assembly provided by an embodiment of the present utility model;

[0024] Figure 4 This is a diagram showing the burner head assembly in use according to an embodiment of the present invention;

[0025] Figure 5 It is a structural schematic diagram of a gas stove provided by an embodiment of the utility model.

[0026] Icons: 1-flow guide structure; 11-first annular side wall; 111-first annular portion; 112-connecting portion; 113-second annular portion; 12-second annular side wall; 13-rib; 14-burner mating surface; 2-burner body; 21-first cavity; 22-second cavity; 23-electrode needle mounting hole; 24-thermocouple mounting hole; 3-burner; 31-copper seat; 32-outer ring copper cover; 33-inner ring copper core; 4-electrode needle. DETAILED DESCRIPTION

[0027] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0028] The present invention provides a flow guiding structure, a burner head assembly and a gas stove. A plurality of embodiments are given below to describe the flow guiding structure, the burner head assembly and the gas stove provided by the present invention in detail.

[0029] Example 1

[0030] The flow guiding structure 1 provided in this embodiment is as follows: Figures 1 to 5 As shown, it includes a first annular side wall 11 and a second annular side wall 12 ; the first annular side wall 11 is sleeved on the outside of the second annular side wall 12 , and a rib 13 is connected between the first annular side wall 11 and the second annular side wall 12 .

[0031] A rib 13 is connected between the first annular side wall 11 and the second annular side wall 12. The rib 13 can fully divide and disrupt the airflow at the air outlet of the guide structure 1, so that the gas and air are fully mixed, the gas is fully burned, the exhaust gas is reduced, and the thermal efficiency is improved.

[0032] The ribs 13 are fixedly connected between the first annular side wall 11 and the second annular side wall 12, thereby fixing the relative position of the first annular side wall 11 and the second annular side wall 12, improving the concentricity of the first annular side wall 11 and the second annular side wall 12, avoiding the risk of eccentricity causing leaks, flashbacks, etc. after assembly of the burner 3, and improving the production qualification rate of the flow guide structure 1. In addition, it is convenient to check and ensure the concentricity and relative height of the first annular side wall 11 and the second annular side wall 12, and reduce the amount of post-processing of the first annular side wall 11 and the second annular side wall 12.

[0033] The number of the rib 13 may be one or more.

[0034] Furthermore, there are multiple ribs 13 , and the multiple ribs 13 are arranged at intervals along the circumferential direction of the first annular side wall 11 .

[0035] The plurality of ribs 13 are arranged at intervals along the circumference of the first annular side wall 11 , and can fully divide and disrupt the airflow at multiple locations at the air outlet of the flow guide structure 1 , so as to better mix the gas with the air.

[0036] The plurality of ribs 13 may be evenly spaced along the circumference of the first annular side wall 11 , so that the fire holes in different areas of the burner 3 can discharge gas evenly, while improving the mixing effect of gas and air.

[0037] The outer contour of the rib 13 can be a flat plate or an arc-shaped plate, such as a fan blade. The rib 13 can extend in a straight line or in a curved line.

[0038] Furthermore, the ribs 13 are spirally arranged around the axis of the second annular side wall 12 .

[0039] The ribs 13 are fan-shaped and spirally arranged around the axis of the second annular side wall 12 , which can better divide and disrupt the airflow at the air outlet of the guide structure 1 , so that the gas and air are mixed more fully.

[0040] Furthermore, along the axial direction of the second annular side wall 12 , the top end of the second annular side wall 12 protrudes from the top end of the first annular side wall 11 , and the bottom end of the second annular side wall 12 protrudes from the bottom end of the first annular side wall 11 .

[0041] In this embodiment, the first annular side wall 11 and the second annular side wall 12 are coaxially arranged. When the axial directions of the first annular side wall 11 and the second annular side wall 12 are arranged in the vertical direction, the top end of the second annular side wall 12 protrudes from the top end of the first annular side wall 11, so that the top end of the second annular side wall 12 is located above the top end of the first annular side wall 11, which facilitates the top surface of the second annular side wall 12 and the top surface of the first annular side wall 11 to cooperate with the burner 3; the bottom end of the second annular side wall 12 protrudes from the bottom end of the first annular side wall 11, so that the bottom end of the second annular side wall 12 is located below the bottom end of the first annular side wall 11, which facilitates the second annular side wall 12 to extend into the burner body 2 for assembly.

[0042] Furthermore, along the axial direction of the second annular side wall 12 , the diameter of the second annular side wall 12 gradually decreases from the bottom end to the top end.

[0043] The outer contour of the second annular side wall 12 is tapered, which facilitates gas flow toward the top outlet of the second annular side wall 12 .

[0044] Furthermore, the first annular sidewall 11 includes a first annular portion 111 , a connecting portion 112 and a second annular portion 113 connected in sequence. The first annular portion 111 is arranged above the second annular portion 113 , and the diameter of the first annular portion 111 is smaller than the diameter of the second annular portion 113 .

[0045] When the guide structure 1 is installed on the burner body 2, the connecting portion 112 contacts the top surface of the first cavity 21, thereby axially positioning the installation of the guide structure 1; the second annular portion 113 contacts the outer surface of the first cavity 21, thereby radially positioning the installation of the guide structure 1.

[0046] The furnace head body 2 is further provided with an electrode needle mounting hole 23 for mounting the electrode needle 4 and a thermocouple mounting hole 24 for mounting the thermocouple.

[0047] Example 2

[0048] The burner head assembly provided by the present invention includes a burner head body 2 and a guide structure 1 provided in Example 1; the burner head body 2 includes a first cavity 21 and a second cavity 22 that are independent of each other, and the first cavity 21 is arranged on the outside of the second cavity 22; the bottom end of the first annular side wall 11 is connected to the top of the first cavity 21, and the bottom end of the second annular side wall 12 is connected to the top of the second cavity 22.

[0049] The bottom end of the first annular sidewall 11 is fixedly connected to the top of the first cavity 21, and the cavity formed between the first annular sidewall 11 and the second annular sidewall 12 is in communication with the first cavity 21. The bottom end of the second annular sidewall 12 is fixedly connected to the top of the second cavity 22, and the cavity formed inside the second annular sidewall 12 is in communication with the second cavity 22. The top surface of the second annular sidewall 12 and the top surface of the first annular sidewall 11 are used to mate with the burner 3, and the top surface of the second annular sidewall 12 and the top surface of the first annular sidewall 11 serve as the burner mating surface 14.

[0050] A rib 13 is connected between the first annular side wall 11 and the second annular side wall 12. The rib 13 can fully divide and disrupt the airflow at the air outlet of the guide structure 1, so that the gas and air are fully mixed, the gas is fully burned, the exhaust gas is reduced, and the thermal efficiency is improved.

[0051] The air outlet of the air guide structure 1 is located at the top opening of the first annular side wall 11 and the top opening of the second annular side wall 12 .

[0052] Furthermore, the melting point of the burner body 2 is lower than the melting point of the flow guide structure 1 .

[0053] Since the flow-guiding structure 1 is used to contact the burner 3 , in order to prevent the burner mating surface 14 from being damaged, the melting point of the flow-guiding structure 1 is higher than the melting point of the burner body 2 .

[0054] In this embodiment, the guide structure 1 is made of copper, and the burner body 2 is made of aluminum.

[0055] The flow guide structure 1 and the burner body 2 can be fixed together by bonding or welding.

[0056] Furthermore, the flow guide structure 1 and the furnace head body 2 are embedded as one body.

[0057] After the guide structure 1 is positioned in the die-casting mold of the burner head body 2, it is embedded with the burner head body 2 through processes such as liquid injection and die-casting. The guide structure 1 and the burner head body 2 are stably and accurately connected as one, and the operation is relatively simple.

[0058] Example 3

[0059] The gas stove provided in this embodiment includes the flow guide structure 1 provided in Example 1 or the burner assembly provided in Example 2. Ribs 13 are connected between the first annular sidewall 11 and the second annular sidewall 12. Ribs 13 can fully divide and disrupt the airflow at the outlet of the flow guide structure 1, allowing for thorough mixing of gas and air, ensuring complete combustion of the gas, reducing waste gas generation, and improving thermal efficiency.

[0060] The gas stove further comprises a burner 3, which comprises a copper base 31, an outer copper cover 32 and an inner copper core 33. The top surface of the second annular side wall 12 is in contact with the burner 3.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A flow guide structure, characterized in that: It comprises a first annular side wall (11) and a second annular side wall (12); The first annular side wall (11) is sleeved on the outside of the second annular side wall (12), and a rib (13) is connected between the first annular side wall (11) and the second annular side wall (12).

2. The flow guide structure according to claim 1, characterized in that: There are a plurality of ribs (13), and the plurality of ribs (13) are arranged at intervals along the circumference of the first annular side wall (11).

3. The flow guide structure according to claim 1, characterized in that: The ribs (13) are arranged in a spiral shape around the axis of the second annular side wall (12).

4. The flow guide structure according to claim 1, characterized in that: Along the axial direction of the second annular side wall (12), the top end of the second annular side wall (12) protrudes from the top end of the first annular side wall (11), and the bottom end of the second annular side wall (12) protrudes from the bottom end of the first annular side wall (11).

5. The flow guide structure according to claim 1, characterized in that: Along the axial direction of the second annular side wall (12), the diameter of the second annular side wall (12) gradually decreases from the bottom end to the top end.

6. The flow guide structure according to claim 1, characterized in that: The first annular side wall (11) comprises a first annular portion (111), a connecting portion (112) and a second annular portion (113) connected in sequence, the first annular portion (111) is arranged above the second annular portion (113), and the diameter of the first annular portion (111) is smaller than the diameter of the second annular portion (113).

7. A burner head assembly, characterized in that: It comprises a burner body (2) and a flow guide structure (1) according to any one of claims 1 to 6; The burner body (2) comprises a first cavity (21) and a second cavity (22) which are independent of each other, and the first cavity (21) is sleeved on the outside of the second cavity (22); The bottom end of the first annular side wall (11) is connected to the top end of the first cavity (21), and the bottom end of the second annular side wall (12) is connected to the top end of the second cavity (22).

8. The burner head assembly according to claim 7, characterized in that The melting point of the burner body (2) is lower than the melting point of the flow-guiding structure (1).

9. The burner head assembly according to claim 7, wherein: The flow guide structure (1) and the burner body (2) are embedded as one body.

10. A gas stove, characterized in that: The invention comprises the guide structure (1) according to any one of claims 1 to 6 or the burner assembly according to any one of claims 7 to 9.

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