Gas cooker fire cover and gas cooker
By introducing protrusions into the fire hole structure of the gas stove fire cover, the gas injection flow rate is reduced, and the flame removal and backfire problems caused by the fire hole structure of the traditional gas stove fire is solved, and a more stable flame and higher combustion heat efficiency are achieved.
Patent Information
- Application Number
- CN202421820090.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-30
- Publication Date
- 2025-06-03
- Estimated Expiration
- 2034-07-30
AI Technical Summary
The fire hole structure of traditional gas stoves leads to a high gas injection flow rate, which is prone to flame removal, poor flame stability, and prone to backfire when the pressure is low.
A gas stove fire cover is designed, and its fire cover body is evenly provided with multiple fire holes in the circumferential direction. The hole wall of the fire hole is provided with a protruding portion to reduce the flow rate when the gas is injected. The channel of the fire hole includes a straight hole section and a threaded hole section in the radial direction, and the threaded hole section includes a protrusion.
By reducing the gas injection flow rate, the flame stability is improved, the combustion is complete and sufficient, the combustion effect is enhanced, the thermal efficiency is improved, and the occurrence of adverse phenomena such as flame removal and tempering is effectively reduced.
Smart Images
Figure CN222937807U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of kitchen appliances, in particular to a burner cap of a gas stove and a gas stove. Background Art
[0002] A gas stove is a commonly used kitchen appliance in daily family life. The burner of an existing gas stove generally includes structures such as a burner base, a divider, and a burner cap. The burner cap generally includes an outer ring burner cap and an inner ring burner cap. A plurality of fire holes are formed in the burner cap for gas to eject to form combustion flames.
[0003] Traditional fire holes generally have a straight hole structure. When the gas ejection flow rate is relatively high, flashback is likely to occur, the flame stability is poor, and even incomplete combustion may be caused. When the pressure is relatively low, flashback is also likely to occur.
[0004] Therefore, it is urgent to design a burner cap of a gas stove and a gas stove to solve the above technical problems. Summary of the Utility Model
[0005] An object of the utility model is to provide a burner cap of a gas stove, which can reduce the flow rate of gas when it ejects from the fire holes and improve the flame stability.
[0006] To achieve the above object, on the one hand, the utility model adopts the following technical solutions:
[0007] A burner cap of a gas stove includes a burner cap body. A plurality of fire holes are uniformly arranged on the burner cap body along the circumferential direction. A raised portion is provided on the pore wall surface of the fire holes, and the raised portion can reduce the flow rate of gas when it ejects from the fire holes.
[0008] As a preferred technical solution of the above burner cap of a gas stove, the pore of the fire hole includes a straight hole section and a threaded hole section along the radial direction of the burner cap body, and the threaded hole section includes the raised portion.
[0009] As a preferred technical solution of the above burner cap of a gas stove, the value range of the ratio of the length of the threaded hole section to the total length of the pore of the fire hole is 0.25 - 1.
[0010] As a preferred technical solution of the above burner cap of a gas stove, along the direction from the inside to the outside in the radial direction, the threaded hole section is located outside the straight hole section.
[0011] As a preferred technical solution of the above burner cap of a gas stove, the pore of the fire hole includes a straight hole section and multiple threaded hole sections along the radial direction of the burner cap body, and the threaded hole section includes the raised portion.
[0012] As a preferred technical solution of the burner cap of the above gas cooker, the duct of the flame hole includes multiple straight hole sections and one threaded hole section along the radial direction of the burner cap body, and the threaded hole section includes the raised portion.
[0013] As a preferred technical solution of the burner cap of the above gas cooker, the duct of the flame hole includes multiple straight hole sections and multiple threaded hole sections along the radial direction of the burner cap body, and the threaded hole section includes the raised portion.
[0014] As a preferred technical solution of the burner cap of the above gas cooker, the length of the threaded hole section is equal to the length of the straight hole section.
[0015] As a preferred technical solution of the burner cap of the above gas cooker, the length of the threaded hole section is not equal to the length of the straight hole section.
[0016] Another object of the present invention is to provide a gas cooker with high combustion thermal efficiency.
[0017] To achieve this purpose, the present invention also adopts the following technical solutions:
[0018] A gas cooker includes the burner cap of the above gas cooker.
[0019] The burner cap of the gas cooker disclosed by the present invention includes a burner cap body. A plurality of flame holes are evenly arranged on the burner cap body along the circumferential direction. A raised portion is provided on the duct wall surface of the flame hole. The raised portion can reduce the flow rate of the gas when it sprays out of the flame hole, thereby improving the flame stability, ensuring complete and sufficient combustion, enhancing the combustion effect, improving the thermal efficiency. At the same time, it can effectively reduce the occurrence of adverse phenomena such as flame lift and flashback, thereby improving the stability of the burner cap of the gas cooker during use.
[0020] The gas cooker disclosed by the present invention includes the burner cap of the above gas cooker, and the combustion thermal efficiency of this gas cooker is high. Description of the Drawings
[0021] Figure 1 is a schematic structural view of the burner cap of the gas cooker provided by the specific embodiment of the present invention;
[0022] Figure 2 is a top view of the burner cap of the gas cooker provided by the specific embodiment of the present invention;
[0023] Figure 3 is a cross-sectional view of the burner cap of the gas cooker provided by the specific embodiment of the present invention.
[0024] In the figure:
[0025] 1. Burner cap body; 11. Flame hole; 111. Straight hole section; 112. Threaded hole section. Specific Embodiments
[0026] In order to make the above objects, features, and advantages of the present utility model more apparent and understandable, the following provides a detailed description of the specific embodiments of the present utility model in conjunction with the accompanying drawings. Many specific details are set forth in the following description to facilitate a full understanding of the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.
[0027] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model.
[0028] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.
[0029] In the present utility model, unless otherwise clearly specified and defined, the terms "installed", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0030] In the present utility model, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply indicates that the horizontal height of the first feature is less than that of the second feature.
[0031] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation.
[0032] Embodiment 1
[0033] This embodiment provides a burner cap for a gas stove, as Figures 1 to 3 shown. The burner cap for the gas stove includes a burner cap body 1. A plurality of fire holes 11 are uniformly arranged on the burner cap body 1 along the circumferential direction. A raised portion is provided on the pore wall surface of the fire hole 11. The raised portion can reduce the flow rate of the gas when it sprays out of the fire hole 11, thereby improving the flame stability, ensuring complete and sufficient combustion, enhancing the combustion effect, improving the thermal efficiency. At the same time, it can effectively reduce the occurrence of adverse phenomena such as flame lift and flashback, thereby improving the stability of the burner cap for the gas stove during use.
[0034] As Figure 3 shown, the pore of the fire hole 11 includes a straight hole section 111 and a threaded hole section 112 along the radial direction of the burner cap body 1. The threaded hole section 112 includes a raised portion, that is, the threaded hole section 112 includes a continuous concave portion and a raised portion. The raised portion has the ability to break the boundary layer of the gas flow, increasing the flow resistance of the gas flow, thereby forming a slowing effect on the gas flow rate, that is, the raised portion can slow down the gas flow rate, and then form a stable gas flow when the gas flow sprays out of the fire hole 11. At the same time, it can also effectively reduce the occurrence of adverse phenomena such as flame lift and flashback.
[0035] In this embodiment, part or all of the passage of the flame hole 11 has a threaded wall surface. Specifically, the value range of the ratio of the length of the threaded hole section 112 to the total length of the passage of the flame hole 11 is 0.25 - 1. That is, the length of the threaded hole section 112 accounts for 1 / 3 of the total length of the passage of the entire flame hole 11. Of course, the proportion it occupies can also be designed as 1 / 2, 1 / 4, etc., or the entire passage of the flame hole 11 can be designed as the threaded hole section 112.
[0036] When the threaded hole section 112 occupies part of the passage of the flame hole 11, in the direction from the inside to the outside along the radial direction, the threaded hole section 112 is located outside the straight hole section 111. Setting the threaded hole section 112 on the outlet side of the flame hole 11 can better achieve the deceleration effect on the gas flow and better prevent flame lift and flashback compared with setting the threaded hole section 112 on the inlet side of the flame hole 11.
[0037] Several specific embodiments are given below.
[0038] The burner cap of the gas cooker includes a burner cap body 1. A plurality of flame holes 11 are uniformly arranged along the circumferential direction of the burner cap body 1. The passage of the flame hole 11 includes a straight hole section 111 and a threaded hole section 112 along the radial direction of the burner cap body 1. In the direction from the inside to the outside along the radial direction, the threaded hole section 112 is located outside the straight hole section 111, and the length of the threaded hole section 112 accounts for 1 / 3 of the total length of the passage of the entire flame hole 11.
[0039] The burner cap of the gas cooker includes a burner cap body 1. A plurality of flame holes 11 are uniformly arranged along the circumferential direction of the burner cap body 1. The passage of the flame hole 11 includes a straight hole section 111 and a threaded hole section 112 along the radial direction of the burner cap body 1. In the direction from the inside to the outside along the radial direction, the threaded hole section 112 is located outside the straight hole section 111, and the length of the threaded hole section 112 accounts for 1 / 2 of the total length of the passage of the entire flame hole 11.
[0040] The burner cap of the gas cooker includes a burner cap body 1. A plurality of flame holes 11 are uniformly arranged along the circumferential direction of the burner cap body 1. The passage of the flame hole 11 is entirely set as the threaded hole section 112 along the radial direction of the burner cap body 1.
[0041] This embodiment also provides a gas cooker, which includes the burner cap of the gas cooker described above. Since this gas cooker includes the burner cap of the gas cooker described above, accordingly, the technical advantages and effects that this gas cooker can achieve also include the technical advantages and effects that the burner cap of the gas cooker can achieve, which will not be elaborated here.
[0042] Embodiment Two
[0043] This embodiment provides a burner cap of a gas cooker. The structure of the burner cap of the gas cooker is substantially the same as the structure of the burner cap of the gas cooker in Embodiment One above, except that:
[0044] The passage of the flame hole 11 includes multiple straight hole segments 111 and / or multiple threaded hole segments 112 along the radial direction of the burner cap body 1.
[0045] In one case: the passage of the flame hole 11 includes one straight hole segment 111 and multiple threaded hole segments 112 along the radial direction of the burner cap body 1, and the threaded hole segment 112 includes a convex portion.
[0046] In another case: the passage of the flame hole 11 includes multiple straight hole segments 111 and one threaded hole segment 112 along the radial direction of the burner cap body 1, and the threaded hole segment 112 includes a convex portion.
[0047] In still another case: the passage of the flame hole 11 includes multiple straight hole segments 111 and multiple threaded hole segments 112 along the radial direction of the burner cap body 1, and the threaded hole segment 112 includes a convex portion.
[0048] The convex portion has the ability to break the boundary layer of the gas flow, increasing the flow resistance of the gas flow, thereby forming a slowing effect on the gas flow velocity, that is, the convex portion can slow down the gas flow velocity, and then form a stable gas flow when the gas flow ejects from the flame hole 11, and at the same time can effectively reduce the occurrence of adverse phenomena such as flashback and backfire.
[0049] The lengths of each threaded hole segment 112 and each straight hole segment 111 can be equal or unequal, and can be designed according to the actual situation.
[0050] The positions of the threaded hole segment 112 and the straight hole segment 111 in the passage of the flame hole 11, that is, the arrangement manner, are not limited, as long as they can achieve the same flame stabilization effect.
[0051] Several specific embodiments are given below.
[0052] The burner cap of the gas cooker includes a burner cap body 1. A plurality of flame holes 11 are uniformly arranged along the circumferential direction of the burner cap body 1. The passage of the flame hole 11 is sequentially provided with a threaded hole segment 112, a straight hole segment 111, and a threaded hole segment 112 from the inside to the outside along the radial direction of the burner cap body 1, and the length of the threaded hole segment 112 is equal to the length of the straight hole segment 111.
[0053] The burner cap of the gas cooker includes a burner cap body 1. A plurality of flame holes 11 are uniformly arranged along the circumferential direction of the burner cap body 1. The passage of the flame hole 11 is sequentially provided with a straight hole segment 111, a threaded hole segment 112, and a straight hole segment 111 from the inside to the outside along the radial direction of the burner cap body 1, and the length of the threaded hole segment 112 is equal to the length of the straight hole segment 111.
[0054] The burner cap of a gas stove includes a burner cap body 1. A plurality of fire holes 11 are evenly arranged along the circumferential direction of the burner cap body 1. The hole channels of the fire holes 11 are successively provided with a straight hole section 111, a threaded hole section 112, a straight hole section 111, and a threaded hole section 112 from the inside to the outside along the radial direction of the burner cap body 1. The length of the threaded hole section 112 is equal to the length of the straight hole section 111.
[0055] The burner cap of a gas stove includes a burner cap body 1. A plurality of fire holes 11 are evenly arranged along the circumferential direction of the burner cap body 1. The hole channels of the fire holes 11 are successively provided with a straight hole section 111, a threaded hole section 112, a straight hole section 111, and a threaded hole section 112 from the inside to the outside along the radial direction of the burner cap body 1. The length of the threaded hole section 112 is greater than the length of the straight hole section 111.
[0056] Note that the above is only the preferred embodiment of the present invention and the technical principles applied. Those skilled in the art will understand that the present invention is not limited to the specific embodiments here. Various obvious changes, re-adjustments, and substitutions can be made by those skilled in the art without departing from the protection scope of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments. Without departing from the concept of the present invention, it can also include more other equivalent embodiments, and the scope of the present invention is determined by the scope of the appended claims.
Claims
1. A gas stove fire cover, characterized in that: The fire cover body (1) comprises a fire cover body (1), wherein a plurality of fire holes (11) are evenly arranged along the circumferential direction, and a protrusion is arranged on the hole wall surface of the fire hole (11), wherein the protrusion can reduce the flow velocity of the gas when it sprays out of the fire hole (11).
2. The gas stove fire cover according to claim 1, characterized in that: The hole channel of the fire hole (11) comprises a straight hole section (111) and a threaded hole section (112) along the radial direction of the fire cover body (1), and the threaded hole section (112) comprises the protruding portion.
3. The gas stove fire cover according to claim 2, characterized in that: The ratio of the length of the threaded hole section (112) to the total length of the hole of the fire hole (11) is in the range of 0.25-1.
4. The gas cooker fire cover according to claim 2 or 3, characterized in that: In the radial direction from inside to outside, the threaded hole section (112) is located outside the straight hole section (111).
5. The gas stove fire cover according to claim 1, characterized in that: The hole channel of the fire hole (11) comprises a straight hole section (111) and a plurality of threaded hole sections (112) along the radial direction of the fire cover body (1), and the threaded hole section (112) comprises the protruding portion.
6. The gas stove fire cover according to claim 1, characterized in that: The hole channel of the fire hole (11) comprises a plurality of straight hole sections (111) and a threaded hole section (112) along the radial direction of the fire cover body (1), and the threaded hole section (112) comprises the protruding portion.
7. The gas stove fire cover according to claim 1, characterized in that: The hole channel of the fire hole (11) comprises a plurality of straight hole sections (111) and a plurality of threaded hole sections (112) along the radial direction of the fire cover body (1), and the threaded hole section (112) comprises the protruding portion.
8. The gas cooker fire cover according to any one of claims 5 to 7, characterized in that: The length of the threaded hole section (112) is equal to the length of the straight hole section (111).
9. The gas cooker fire cover according to any one of claims 5 to 7, characterized in that: The length of the threaded hole section (112) is not equal to the length of the straight hole section (111).
10. A gas cooker, characterized in that: It comprises a gas cooker fire cover as described in any one of claims 1 to 9.