Gas cooker
By setting a plurality of first recesses on the fire cover of the gas stove and setting a fire hole at intervals therein, the problem of backfiring of the fire tank during high-power heating is solved, and higher heating power and safety are achieved.
Patent Information
- Application Number
- CN202311161796.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-09-08
- Publication Date
- 2025-03-11
AI Technical Summary
The fire tank is prone to backfire when heated at high power, which poses high safety hazards.
A gas stove is designed, with a plurality of first recesses arranged above the fire cover, and fire holes are arranged at intervals in the recesses. The recesses are connected to the gas chamber to form a bar flame to increase the heating power. At the same time, since the maximum cross-sectional length of the fire hole is small, it is difficult to form a severe tempering phenomenon.
It improves the heating power and safety of gas stoves and reduces the risk of backfire.
Smart Images
Figure CN119594432A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of gas cookers, and in particular to a gas cooker. Background Art
[0002] In order to increase the flame burning power of the stove, a fire groove structure is invented. The fire groove structure can increase the flame burning area, which improves the combustion power of the stove and makes the pot heated more evenly and cooks faster.
[0003] However, the fire groove is opened at the top of the fire cover and is in a long strip shape. When the gas supply is insufficient or the fire is turned off, it is very easy to backfire, causing the flame at the fire cover to spread inward along the fire groove, posing a high safety hazard.
[0004] Therefore, a new stove is needed. Summary of the invention
[0005] The present application provides a gas cooker for solving the flashback risk caused by the fire groove when heating the cookware with high power and high efficiency.
[0006] The present application provides a gas cooker, comprising a shell and a burner, wherein the shell has a containing space, and the burner is at least partially arranged in the containing space of the shell; the burner comprises a base, a flame divider and a fire cover, wherein the base is used to connect a gas supply pipeline, the flame divider is arranged on the base, the flame divider has a gas cavity connected to the gas supply pipeline, the fire cover is arranged above the flame divider, a plurality of first recessed portions are arranged at intervals on the top surface of the fire cover, and the first recessed portions extend radially along the fire cover; wherein a plurality of fire holes are arranged at intervals in the first recessed portions, and the fire holes are connected to the gas cavity.
[0007] The first concave portion is arranged above the fire cover in the present application, and the fire holes are arranged in the first concave portion at intervals, so that the gas flows out through the fire holes and fills the first concave portion, forming a strip-shaped flame, thereby improving the heating power of the gas cooker. At the same time, the gas outflow adopts the form of a fire hole. When the gas is insufficient or the fire is turned off, it is difficult to form a severe flashback phenomenon due to the small maximum length of the cross section of the fire hole, thereby improving the safety of the gas cooker.
[0008] In some embodiments of the present application, the fire hole is arranged on the bottom surface of the first recessed portion.
[0009] When the fire hole is arranged on the bottom surface of the first recessed portion, the extension direction of the fire hole is upward, which is convenient for the processing of the fire hole. At the same time, the gas can spread directly upward when flowing out without being blocked by the side wall of the first recessed portion, thereby improving the flow smoothness of the gas and the stability of the flame combustion.
[0010] In some embodiments of the present application, the plurality of fire holes are distributed at intervals along the radial direction of the fire cover.
[0011] In the radial direction of the fire cover, the fire holes are distributed more evenly, so that the flame distribution in the first recessed portion can be more even, and the gas cooker can heat the pot more evenly in the radial direction.
[0012] In some embodiments of the present application, the width of the first recessed portion is between 0.8 mm and 3 mm. When the width of the first recessed portion is within this range, the sawing process of the first recessed portion can be facilitated, and the first recessed portions can be more reasonably distributed in the circumferential direction of the fire cover, so that the gas burns more completely and the heating efficiency is higher.
[0013] In some embodiments of the present application, the fire cover also includes a second recessed portion, which is arranged on the bottom surface of the fire cover and extends along the circumference of the fire cover; the second recessed portion is connected to the first recessed portion, and the connection point between the second recessed portion and the first recessed portion is a fire hole.
[0014] The second recessed portion at the bottom of the fire cover is connected to the first recessed portion on the top surface of the fire cover, so that a fire hole is formed on the fire cover. When processing the fire cover, the second recessed portion and the first recessed portion can be directly cut out by an annular saw blade and a circular saw blade, thereby making the processing of the fire hole more convenient.
[0015] In some embodiments of the present application, a plurality of second recessed portions are provided, the plurality of second recessed portions are coaxially arranged, and the plurality of second recessed portions are spaced apart and distributed along the radial direction of the fire cover.
[0016] When multiple second recessed portions are coaxially arranged and connected to multiple first recessed portions, a mesh-shaped distribution of fire holes can be formed on the fire cover, thereby making the flame distribution more uniform. When the gas stove heats the pot, the pot can be heated more evenly and the heating effect can be better.
[0017] In some embodiments of the present application, the width of the second recessed portion is between 0.8 mm and 3.5 mm.
[0018] The second recessed portion is arranged on the bottom surface of the fire cover and a fire hole is formed at the intersection of the second recessed portion and the first recessed portion. At this time, the second recessed portion adopts the above-mentioned width dimension, so that the width of the second recessed portion can be close to or slightly larger than the width of the first recessed portion, thereby making the shape of the fire hole more regular and the maximum cross-sectional dimension of the fire hole smaller, thereby avoiding backfire.
[0019] In some embodiments of the present application, the fire cover includes an inner ring fire cover and an outer ring fire cover, and the outer ring fire cover is sleeved outside the inner ring fire cover; the first recessed portion and the fire hole are arranged on at least one of the outer ring fire cover and the inner ring fire cover.
[0020] The fire cover is configured as an outer ring fire cover and an inner ring fire cover, so that the fire cover as a whole has a higher heating power. At least one of the outer ring fire cover and the inner ring fire cover adopts the above-mentioned first recessed portion and fire hole structure, so that at least one of the outer ring fire cover and the inner ring fire cover can have a more uniform heating effect on the cookware.
[0021] In some embodiments of the present application, the angle between the top surface of the fire cover and the horizontal plane is 0° to 45°, and the middle part of the fire cover protrudes upward to improve the gas combustion rate of the gas cooker.
[0022] There is an angle between the top surface of the fire cover and the horizontal plane and the middle part of the top surface of the fire cover bulges upward. This method can make the fire cover have more first recessed parts and when the strip-shaped flame is burned in the first recessed part, the outer flame of the flame is in contact with the air over a larger area, so that the gas burns more completely, thereby reducing the amount of CO in the gas combustion products and further improving the safety of the gas stove.
[0023] A gas cooker comprises a shell and a burner, wherein the shell has a accommodating space, and the burner is at least partially arranged in the accommodating space of the shell, and the burner comprises a base, a flame divider and a fire cover; the base is used to connect a gas supply pipeline, the flame divider is arranged on the base, and the flame divider has a gas cavity connected to the gas supply pipeline, and the fire cover is arranged above the flame divider, and a plurality of first recessed portions are arranged at intervals on the top surface of the fire cover, and the first recessed portions extend in the radial direction of the fire cover; a plurality of second recessed portions are arranged at intervals on the bottom surface of the fire cover, and the second recessed portions extend in the circumferential direction of the fire cover; wherein the first recessed portions are connected to the second recessed portions.
[0024] In the present application, the top surface of the fire cover is provided with a first recessed portion, the bottom surface is provided with a second recessed portion, and the first recessed portion and the second recessed portion are connected, so that the first recessed portion is connected with the gas cavity through the connection with the second recessed portion, and then the gas can be replenished into the first recessed portion through the partially connected hole for combustion. When the gas is insufficient or the fire is turned off, it is difficult to form a severe flashback phenomenon due to the small maximum length of the cross section of the hole, thereby improving the safety of the gas cooker. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] The accompanying drawings are used to provide a further understanding of the technical solution of the present invention and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the technical solution of the present invention and do not constitute a limitation on the technical solution of the present invention.
[0026] Figure 1 Schematic diagram of an existing fire cover provided for this application.
[0027] Figure 2 This is one of the schematic diagrams of the gas cooker provided in the embodiment of the present application.
[0028] Figure 3A schematic diagram of a burner provided in an embodiment of the present application.
[0029] Figure 4 One of the schematic diagrams of the fire cover provided in the embodiment of the present application.
[0030] Figure 5 A top view of a fire cover provided in an embodiment of the present application.
[0031] Figure 6 This is one of the cross-sectional schematic diagrams of the fire cover provided in the embodiment of the present application.
[0032] Figure 7 This is the second cross-sectional schematic diagram of the fire cover provided in the embodiment of the present application.
[0033] Figure 8 This is one of the partial schematic diagrams of the fire cover provided in the embodiment of the present application.
[0034] Fig. 9 This is the second partial schematic diagram of the fire cover provided in the embodiment of the present application.
[0035] Fig.10 This is the third partial schematic diagram of the fire cover provided in the embodiment of the present application.
[0036] Fig.11 One of the bottom views of the fire cover provided in the embodiment of the present application.
[0037] Fig.12 This is the third cross-sectional schematic diagram of the fire cover provided in the embodiment of the present application.
[0038] Fig.13 This is the fourth partial schematic diagram of the fire cover provided in the embodiment of the present application.
[0039] Fig.14 The second bottom view of the fire cover provided in the embodiment of the present application.
[0040] Fig.15 This is a third bottom view of the fire cover provided in the embodiment of the present application.
[0041] Fig.16 This is the second schematic diagram of the fire cover provided in the embodiment of the present application.
[0042] Fig.17 This is the third schematic diagram of the fire cover provided in the embodiment of the present application.
[0043] Fig.18 This is the fourth schematic diagram of the fire cover provided in the embodiment of the present application.
[0044] Fig.19 This is the fourth cross-sectional schematic diagram of the fire cover provided in the embodiment of the present application.
[0045] Fig. 20This is a second schematic diagram of the gas cooker provided in the embodiment of the present application.
[0046] Figure markings: 01-fire cover; 02-fire groove; 1-shell; 11-accommodating space; 2-burner; 21-base; 22-fire distributor; 221-gas chamber; 23-fire cover; 231-first recessed portion; 232-fire hole; 233-second recessed portion; 234-inner ring fire cover; 235-outer ring fire cover. DETAILED DESCRIPTION
[0047] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0048] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0049] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.
[0050] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances. In addition, when describing a pipeline, the "connected" and "connection" used in this application have the meaning of conduction. The specific meaning needs to be understood in conjunction with the context.
[0051] In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.
[0052] Please refer to Figure 1 In order to improve the flame combustion power of the stove, a fire groove 02 structure appears on the fire cover 01 of the gas stove. The fire groove 02 structure can increase the flame combustion area, improve the combustion power of the stove, and make the pot heated more evenly and cook faster.
[0053] However, the fire groove 02 is formed on the top of the fire cover 01, and is in a long strip shape and extends radially along the fire cover 01. When the gas supply is insufficient or the fire is turned off, due to the long length of the fire groove 01, a linear low-pressure area is easily formed in the center of the fire groove 02, causing the flame to flow back into the fire cover 01, thereby causing a flashback phenomenon, causing the flame at the fire cover 01 to spread inward along the fire groove 02 and ignite the gas in the gas cooker in the reverse direction, which poses a high safety hazard.
[0054] Please refer to Figure 2 To this end, the present application provides a new gas cooker, including a shell 1 and a burner 2.
[0055] The housing 1 has a receiving space 11 inside, and a through hole is provided on the table top of the housing 1 (i.e., the table top of the cooker), and the burner 2 is at least partially arranged in the housing 1. Part of the burner 2 can pass through the through hole and extend outside the housing 1, and the part extending outside the housing 1 is used to burn flames to heat the cookware; it can also be arranged at the through hole so that the flame of the burner 2 is located outside the housing 1.
[0056] Please refer to Figure 3 The burner 2 includes a base 21 , a flame distributor 22 and a flame cover 23 .
[0057] The base 21 is disposed in the receiving space 11 (such as Figure 2 The base 21 is used to connect to the air supply pipeline, and a delivery channel (not shown in the figure) connected to the air supply pipeline is provided in the base 21.
[0058] The ignition distributor 22 is disposed on the base 21. The ignition distributor 22 can be disposed at the through hole. The ignition distributor 22 has a gas chamber 221 ( Figure 3 Not shown, please refer to Figure 7 ), and the gas chamber 221 is connected to the gas supply pipeline through a delivery channel, so that gas can be temporarily stored in the gas chamber 221 when the gas cooker is in use.
[0059] The fire cover 23 is arranged above the fire distributor 22 .
[0060] A plurality of first recessed portions 231 are arranged at intervals on the top surface of the fire cover 23 , and the first recessed portions 231 extend in the radial direction of the fire cover 23 .
[0061] Please refer to Figure 4 , wherein a plurality of fire holes 232 are arranged at intervals in the first recessed portion 231 , and the fire holes 232 are connected to the gas chamber 221 .
[0062] A first recessed portion 231 is arranged above the fire cover 23 in the present application, and fire holes 232 are arranged at intervals in the first recessed portion 231, so that the gas flows out through the fire holes 232 and fills the first recessed portion 231. Since the first recessed portion is strip-shaped, the area of the flame burning at the fire cover 23 can be increased, thereby improving the heating power of the gas stove.
[0063] At the same time, when the gas is insufficient or the fire is turned off, since the maximum length of the cross section of the fire hole 232 is relatively small, it is difficult to form a severe backfire phenomenon, thereby improving the safety of the gas stove.
[0064] In some examples, the first recessed portion 231 extends in a radial direction of the fire cover 23 , and the first recessed portion 231 is in communication with the gas chamber 221 through the fire hole 232 .
[0065] Please continue to refer to Figure 4 For example, the fire cover 23 can be circular, annular or quasi-circular (quasi-circular means that when looking downward in the vertical direction, most of the area of the fire cover 23 is circular, and a small part of the area may have other processing structures). In this case, the radial direction refers to the diameter direction passing through the axis of the fire cover 23.
[0066] Please refer to Figure 5 , or, or it can also be an ellipse or a square. At this time, looking downward along the vertical direction, the centroid of the fire cover 23 points to the edge direction of the fire cover 23 or the opposite direction of this direction, which refers to the radial direction.
[0067] The extension direction of the first recessed portion 231 may coincide with the above-mentioned radial direction, or may have a certain deviation from the radial direction, so that a certain angle is generated between the extension direction of the first extension portion and the radial direction of the fire cover 23 .
[0068] In some examples, the plurality of first recessed portions 231 may be identical.
[0069] Please continue to refer to Figure 5 For example, the plurality of first recessed portions 231 are spaced apart around the axis direction of the fire cover 23. The spacing between two adjacent first recessed portions 231 may be equal, that is, the angles between the extension directions of the two adjacent first recessed portions 231 may be equal, and the distribution of the first recessed portions 231 on the fire cover 23 is more uniform.
[0070] Alternatively, a positioning area may be provided on the fire cover 23, and the positioning area may be used to make the installation between the fire cover 23 and the flame distributor 22 more stable. Meanwhile, a coupler and an igniter for assisting flame combustion may be provided at the positioning area.
[0071] At this time, the plurality of first recessed portions 231 may be spaced apart around the axial direction of the fire cover 23 and may avoid the positioning area, or the first recessed portions 231 may be avoided in the positioning area so that the positioning area can play a due role in positioning and installation.
[0072] In some examples, the first recessed portion 231 may be a groove; the cross-section of the groove may be U-shaped or may be other shapes; the groove wall edge of the groove may be rounded or chamfered.
[0073] In some examples, the first recessed portion 231 may pass through the top surface of the fire cover 23 , or the first recessed portion 231 may be only provided on the top surface of the fire cover 23 without passing through the outer edge of the top surface of the fire cover 23 .
[0074] In some examples, the number of the first recessed portions 231 may be 20 to 120.
[0075] In some examples, the depth of the first recessed portion 231 may be between 0.1 and 0.6 of the thickness of the fire cover 23 .
[0076] In some examples, the number of the fire holes 232 in the first recessed portion 231 may be 3 to 12.
[0077] According to different sizes of the fire cover 23 , the number of the fire holes 232 in each first recessed portion 231 may also be different.
[0078] Please refer to Figure 6 On this basis, the fire hole 232 is arranged on the bottom surface of the first recessed portion 231 .
[0079] When the fire hole 232 is arranged on the bottom surface of the first recessed portion 231, the extension direction of the fire hole 232 is upward, which is convenient for the processing of the fire hole 232. At the same time, the gas can spread directly upward when flowing out without being blocked by the side wall of the first recessed portion 231, thereby improving the flow smoothness of the gas and the stability of the flame combustion.
[0080] Please continue to refer to Figure 6 In some examples, the extension direction of the fire hole 232 may be a vertical direction.
[0081] The vertical direction may be vertically upward or vertically downward (the vertical direction here refers to the direction perpendicular to the surface of the gas cooker 1 ).
[0082] Since the bottom surface of the fire cover 23 cooperates with the fire distributor 22, the top surface of the fire cover 23 is part of the display surface when the burner 2 is placed normally. Therefore, when opening the fire hole 232, it is usually opened from top to bottom in the vertical direction. At the same time, the top surface of the fire cover 23 needs to be subsequently processed to make the fire cover 23 look more beautiful.
[0083] Please refer to Figure 7 In some other examples, the extension direction of the fire hole 232 can form an angle with the vertical direction. In this case, the fire hole 232 can also be connected to the gas cavity 221, so that the gas in the gas cavity 221 overflows into the first recessed portion 231 through the fire hole 232.
[0084] Exemplarily, the angle between the extension direction of the fire hole 232 and the vertical direction may be 30°. In this case, the fire hole 232 may be provided on any side wall of the first recessed portion 231 or on the bottom wall of the recessed portion.
[0085] Alternatively, the extension direction of the fire hole 232 can be perpendicular to the vertical direction. In this case, the fire hole 232 can only be set on the side wall of the first recessed portion 231. At the same time, the bottom of the area where the first recessed portion 231 of the fire cover 23 is located should be shelled so that the fire hole 232 passes through the side wall of the first recessed portion 231 and is directly connected to the gas chamber 221.
[0086] Please refer to Figure 8 On this basis, a plurality of fire holes 232 are distributed at intervals along the radial direction of the fire cover 23 so that the fire holes 232 are evenly distributed along the radial direction of the fire cover 23 .
[0087] In the radial direction of the fire cover 23 , the fire holes 232 are distributed more evenly, so that the flame distribution in the first recessed portion 231 is more even, and the gas cooker heats the cooker more evenly in the radial direction.
[0088] Please continue to refer to Figure 8 In some examples, the uniform distribution of the fire holes 232 along the radial direction of the fire cover 23 should be understood as equal spacing between adjacent fire holes 232 (i.e. Figure 8 The spacing a is equal).
[0089] The fire hole 232 may also be located in the middle of the bottom surface of the first recessed portion 231 so that the gas filled in the first recessed portion 231 is more uniform.
[0090] In some examples, the first recessed portion 231 may pass through the outer edge of the top surface of the fire cover 23. At this time, the distance between the outermost fire hole 232 located at the first recessed portion 231 and the outer annular surface of the fire cover 23 may be equal to the distance between two adjacent fire holes 232 in the first recessed portion 231.
[0091] In some other examples, the first recessed portion 231 is only opened on the top surface of the fire cover 23. In this case, the first recessed portion 231 does not penetrate the edge of the top surface of the fire cover 23. In this case, the fire holes 232 located at both ends of the first recessed portion 231 can be fitted with the inner end surface of the first recessed portion 231, or a certain gap can be retained.
[0092] Alternatively, the distance between the fire hole 232 located at the end surface of the first recessed portion 231 and the end surface of the first recessed portion 231 may be close to or equal to the distance between two adjacent fire holes 232 in the first recessed portion 231 .
[0093] In some examples, the distribution direction of the plurality of fire holes 232 in the same first recessed portion 231 should be the same as the extension direction of the first recessed portion 231 .
[0094] Exemplarily, when the extension direction of the first recessed portion 231 is parallel to the radial direction of the fire cover 23 , the multiple fire holes 232 in the first recessed portion 231 should be distributed along the extension direction of the first recessed portion 231 , that is, distributed along the radial direction of the fire cover 23 .
[0095] Alternatively, when there is an angle between the extension direction of the first recessed portion 231 and the radial direction of the fire cover 23, the multiple fire holes 232 in the first recessed portion 231 should be distributed along the extension direction of the first recessed portion 231. At this time, there is also an angle between the distribution direction of the multiple fire holes 232 and the radial direction of the fire cover 23.
[0096] Please continue to refer to Figure 8 On this basis, the width of the first recessed portion 231 is
[0097] 0.8mm~3mm (the width of the first concave portion 231 is Figure 8 When the width of the first recessed portion 231 is within this range, the sawing process of the first recessed portion 231 can be facilitated, and the first recessed portions 231 can be more reasonably distributed in the circumferential direction of the fire cover 23, so that the gas burns more completely and the heating efficiency is higher.
[0098] In some examples, along the extension direction of the first recessed portion 231 , the width of the first recessed portion 231 may be the same everywhere.
[0099] Please continue to refer to Figure 8 For example, when the width of the first recessed portion 231 is equal everywhere, the width of the first recessed portion 231 can be between 0.8 mm and 3 mm. According to the size of the fire cover 23, the width of the first recessed portion 231 can be selected as one of 0.8 mm, 1.2 mm, 1.5 mm, 2.0 mm, 2.5 mm, and 3.0 mm; preferably 1.5 mm.
[0100] At the same time, when the width of the first recessed portion 231 increases, the opening area of the fire hole 232 in the first recessed portion 231 should also increase accordingly, so that the combustion power of the first recessed portion 231 can be higher; when the size of the fire cover 23 is inconvenient, the number of the first recessed portions 231 is reduced accordingly, so that the number of the first recessed portions 231 and the width of the first recessed portions 231 are matched to cover the top surface of the fire cover 23.
[0101] Please refer to Fig. 9 In some other examples, along the extension direction of the first recessed portion 231 , from the center of the fire cover 23 to the edge direction, the width of the first recessed portion 231 may also gradually increase.
[0102] Please continue to refer to Fig. 9 For example, when the width of the first recessed portion 231 gradually increases from the center of the fire cover 23 to the edge, the width of the first recessed portion 231 near the center of the fire cover 23, i.e., the narrowest width of the first recessed portion 231 (e.g. Fig. 9 b1, b1 is the narrowest width of the first recessed portion 231) can be selected as 0.8mm, 1.2mm, 1.5mm, and the width of the first recessed portion 231 near the edge of the fire cover 23, that is, the widest width of the first recessed portion 231 (such as Fig. 9 b2 (b2 is the widest width of the first recessed portion 231 ) can be selected as one of 1.5 mm, 2.0 mm, 2.5 mm, and 3.0 mm, and the narrowest width of the first recessed portion 231 is smaller than the widest width of the first recessed portion 231 .
[0103] Please continue to refer to Fig. 9 At this time, the area between the narrowest width of the first recessed portion 231 and the widest width of the first recessed portion 231 can be linearly changed, that is, the inner side surface of the first recessed portion 231 is set to be a whole inclined surface.
[0104] Please refer to Fig.10 Alternatively, a nonlinear change, such as a segmented change, may be used to set the inner side surface of the first recessed portion 231 to a multi-stage stepped surface.
[0105] In some examples, the first recessed portion 231 can be processed by a saw blade. When the first recessed portion 231 is produced by sawing with a saw blade, the production difficulty of the first recessed portion 231 can be reduced, and the production efficiency of the fire cover 23 can be improved.
[0106] Alternatively, the first recessed portion 231 may be processed by a milling cutter. When the first recessed portion 231 is processed by a milling cutter, the inner wall and the bottom wall of the first recessed portion 231 will be smoother, and the product quality will be higher.
[0107] In some other examples, the first recessed portion 231 may also be cast.
[0108] Alternatively, the first recessed portion 231 may also be manufactured by additive processing, such as by arranging radial ribs at intervals on the upper surface of the fire cover 23 so that the first recessed portion 231 is formed between adjacent ribs.
[0109] Please refer to Fig.11On this basis, the fire cover 23 further includes a second recessed portion 233 , which is disposed on the bottom surface of the fire cover 23 and extends along the circumference of the fire cover 23 .
[0110] Please refer to Fig.12 The second recessed portion 233 is connected to the first recessed portion 231 , and the connecting point between the second recessed portion 233 and the first recessed portion 231 is a fire hole 232 .
[0111] The second recessed portion 233 at the bottom of the fire cover 23 is connected to the first recessed portion 231 on the top surface of the fire cover 23, so that a fire hole 232 is formed on the fire cover 23. When processing the fire cover 23, the second recessed portion 233 and the first recessed portion 231 can be directly cut out by an annular saw blade and a circular saw blade, thereby making the processing of the fire hole 232 more convenient.
[0112] In some examples, the second extension portion extends along the circumference of the fire cover 23, that is, forms an annular groove. The second extension portion can be connected to multiple first extension portions, and a fire hole 232 is formed at the connection with each first extension portion.
[0113] Please refer to Fig.13 , wherein, since the fire hole 232 is formed by the intersection of the first extension portion and the second extension portion, the fire hole 232 is a quadrilateral or a quasi-quasilateral (two sides of the quasi-quasi-quasilateral are arc-shaped, namely, the two arc-shaped sides of the second extension portion).
[0114] In some other examples, the second extension portion may not be a full circular ring, that is, it may have a gap or be formed by splicing multiple arc rings. In this case, the second extension portion can also be connected to each first extension portion to form a fire hole 232.
[0115] In some examples, the second recessed portion 233 can be cut by a saw blade. The second recessed portion 233 cut by a saw blade can meet the use requirements of the fire cover 23, and the processing is convenient and efficient.
[0116] In some examples, the second recessed portion 233 may be formed by a milling machine. When the second recessed portion 233 has a relatively low depth, it may be formed by a milling machine.
[0117] Please refer to Fig.14 On this basis, a plurality of second recessed portions 233 are provided, and the plurality of second recessed portions 233 are coaxially arranged, and the plurality of second recessed portions 233 are distributed at intervals along the radial direction of the fire cover 23, so that a mesh-distributed fire hole 232 is formed between the plurality of second recessed portions 233 and the plurality of first recessed portions 231.
[0118] When multiple second recesses 233 are coaxially arranged and connected to multiple first recesses 231, a mesh-shaped fire hole 232 can be formed on the fire cover 23, thereby making the flame distribution more uniform. When the gas stove heats the cookware, the cookware can be heated more evenly and the heating effect can be better.
[0119] In some examples, along the extension direction of the first extension portion, the intervals between the plurality of second recessed portions 233 may be equal.
[0120] In some examples, the spacing between adjacent second extensions may gradually increase in the direction from the center of the bottom surface of the fire cover 23 to the edge of the fire cover 23. At this time, the flame near the edge has a larger gap during combustion, and the fire holes 232 near the inner side can add more oxygen through the gap between adjacent first recessed portions 231 during combustion, so that the gas burns more completely.
[0121] In some other examples, the distance between adjacent second extensions may be gradually reduced in the direction from the center of the bottom surface of the fire cover 23 to the edge of the fire cover 23, so that the fire holes 232 near the edge of the fire cover 23 are more dense, the flame combustion power is higher, and the flame here is close to the external air, which can be supplemented with more air, thereby improving the power of the gas cooker.
[0122] In some examples, the widths of the plurality of second recessed portions 233 may be the same, or partially the same, or the width of each second recessed portion 233 may be different.
[0123] Please refer to Fig.15 On this basis, the width of the second recessed portion 233 is between 0.8 mm and 3.5 mm (eg Fig.15 (as shown in c).
[0124] The second recessed portion 233 is arranged on the bottom surface of the fire cover 23 and a fire hole 232 is formed at the intersection of the second recessed portion 233 and the first recessed portion 231. At this time, the second recessed portion 233 adopts the above-mentioned width dimension, which can make the width of the second recessed portion 233 close to or slightly larger than the width of the first recessed portion 231, thereby making the shape of the fire hole 232 more regular and the maximum cross-sectional dimension of the fire hole 232 smaller to avoid backfire.
[0125] In some examples, the width of the second recessed portion 233 should match the width of the first recessed portion 231 , such that the size of the second recessed portion 233 is slightly larger than the size of the first recessed portion 231 .
[0126] Exemplarily, when the width of the first recessed portion 231 along the extension direction of the first recessed portion 231 is the same everywhere, and the width of the first recessed portion 231 is 1.5 mm, the width of all the second recessed portions 233 may be the same, and may be 2.0 mm.
[0127] Alternatively, when the width of the first recessed portion 231 gradually increases along the extension direction of the first recessed portion 231, the widths of all the second recessed portions 233 may also be unequal, and the widths gradually increase along the center-to-edge direction of the fire cover 23. At this time, the width of the second recessed portion 233 may be selected as 0.8mm, 1.0mm, 1.5mm, 2.0mm, 2.5mm, 3.0mm, 3.5mm, or other values between 0.8mm and 3.5mm.
[0128] In some other examples, when the size of the fire cover 23 is too large, the second recessed portion 233 may also adopt other data.
[0129] In some examples, the depth of the first recess 231 can be between 0.2 and 0.9 of the thickness of the fire cover 23, and the depth of the second recess 233 can be between 0.2 and 0.9 of the thickness of the fire cover 23, and the sum of the processing depth of the first recess 231 and the processing depth of the second recess 233 should be greater than the thickness of the fire cover 23, so that the fire hole 232 can be directly formed during the processing, reducing additional processing technology.
[0130] Please refer to Fig.16 On this basis, the fire cover 23 includes an inner ring fire cover 234 and an outer ring fire cover 235, and the outer ring fire cover 235 is sleeved outside the inner ring fire cover 234; the first recessed portion 231 and the fire hole 232 are arranged on at least one of the outer ring fire cover 235 and the inner ring fire cover 234.
[0131] The fire cover 23 is configured as an outer ring fire cover 235 and an inner ring fire cover 234, so that the fire cover 23 as a whole has a higher heating power. At least one of the outer ring fire cover 235 and the inner ring fire cover 234 adopts the above-mentioned structure of the first recessed portion 231 and the fire hole 232, so that at least one of the outer ring fire cover 235 and the inner ring fire cover 234 can achieve a more uniform heating effect on the cookware.
[0132] In some examples, the outer ring fire cover 235 should be annular, and the inner ring fire cover 234 can be annular or circular. An air intake gap can be set between the inner ring fire cover 234 and the outer ring fire cover 235. The air intake gap can be connected to the air outside the burner 2 through the flame divider 22 or the base 21 to supplement the air for the flame of the gas combustion.
[0133] In some examples, the fire hole 232 and the first recessed portion 231 may be disposed on the outer ring fire cover 235 .
[0134] Alternatively, the fire hole 232 and the first recessed portion 231 may be disposed on the inner ring fire cover 234 .
[0135] Please continue to refer to Fig.15 and Fig.16 Alternatively, the fire hole 232 and the first recessed portion 231 may be provided on both the inner ring fire cover 234 and the outer ring fire cover 235 at the same time.
[0136] In some examples, the fire holes 232 on the inner ring fire cover 234 and the outer ring fire cover 235 should both be connected to the gas chamber 221 .
[0137] There are two flame distributors 22 , which provide fuel gas to the inner ring fire cover 234 and the outer ring fire cover 235 respectively.
[0138] Meanwhile, separate delivery channels may also be provided in the base 21 to deliver gas to the two ignition distributors 22 respectively.
[0139] In some examples, the sizes of the fire holes 232 on the inner ring fire cover 234 and the outer ring fire cover 235 may be the same or different.
[0140] Please refer to Fig.17 On this basis, the angle between the top surface of the fire cover 23 and the horizontal plane is 0° to 45° (such as Fig.17 The middle part of the fire cover 23 protrudes upward to improve the gas combustion rate of the gas cooker.
[0141] There is an angle between the top surface of the fire cover 23 and the horizontal plane, and the middle part of the top surface of the fire cover 23 bulges upward. This method can make the fire cover 23 have more first recessed parts 231, and when the strip-shaped flame is burned at the first recessed part 231, the outer flame of the flame is in contact with the air over a larger area, so that the gas burns more completely, thereby reducing the amount of CO in the gas combustion products and further improving the safety of the gas stove.
[0142] Please refer to Fig.18 In some examples, the top surface of the fire cover 23 may be a horizontal surface, in which case the middle of the fire cover 23 is flush with the edge of the fire cover 23 and has no protruding portion. Fig.18 e1) and the horizontal plane ( Fig.18 The angle between e2) shown in FIG is 0°.
[0143] In some examples, the angle between the top surface of the fire cover 23 and the horizontal plane can be 5°. At this time, the fire cover 23 is slightly inclined, the top surface of the fire cover 23 is a cone, and the middle part of the fire cover 23 bulges upward. At this time, the inclination angle can enhance the amount of air added during gas combustion, so that the gas combustion is relatively complete.
[0144] In some examples, the angle between the top surface of the fire cover 23 and the horizontal plane can also be any one of 10°, 20°, 30°, and 45°, all of which can further supplement the air in the gas and make the gas burn more completely.
[0145] Please refer to Fig.19 In some other examples, the angle between the top surface of the fire cover 23 and the horizontal plane can be -5° (inclined in the direction opposite to the above direction, such as Fig.19 As shown in d1, the middle part of the fire cover 23 is sunken downwards, so that the flame of the fire cover 23 can heat the pot more concentratedly.
[0146] A gas cooker comprises a shell 1 and a burner 2, wherein the burner 2 is arranged in the shell 1, and comprises a base 21, an ignition divider 22 and a fire cover 23; the base 21 is used to connect a gas supply pipeline, the ignition divider 22 is arranged on the base 21, and the ignition divider 22 has a gas cavity 221 connected to the gas supply pipeline, the fire cover 23 is arranged above the ignition divider 22, a plurality of first recessed portions 231 are arranged at intervals on the top surface of the fire cover 23, and the first recessed portions 231 extend in the radial direction of the fire cover 23; a plurality of second recessed portions 233 are arranged at intervals on the bottom surface of the fire cover 23, and the second recessed portions 233 extend in the circumferential direction of the fire cover 23; wherein the first recessed portions 231 and the second recessed portions 233 are connected to each other.
[0147] In the present application, the top surface of the fire cover 23 is provided with a first recessed portion 231, and the bottom surface is provided with a second recessed portion 233, and the first recessed portion 231 and the second recessed portion 233 are connected, so that the first recessed portion 231 is connected with the gas chamber 221 through the connection with the second recessed portion 233, and then the gas can be replenished into the first recessed portion 231 through the partially connected holes for combustion. When the gas is insufficient or the fire is turned off, it is difficult to form a severe backfire phenomenon due to the small maximum length of the cross section of the hole, thereby improving the safety of the gas cooker.
[0148] In some examples, the angle between the first recessed portion 231 and the second recessed portion 233 may be 90°, or other angles, such as 70° or 85°, which may also allow the first recessed portion 231 and the second recessed portion 233 to be connected to each other, so that gas overflows from the connection point.
[0149] In some examples, the first recess 231 and the second recess 233 are interconnected to allow the fire cover 23 to release gas therefrom, which eliminates the need for drilling holes in the fire cover 23 in traditional processes, facilitates the processing and production of the fire cover 23, reduces production costs, and speeds up production.
[0150] Please refer to Fig. 20 In some examples, a plurality of burners 2 may be provided in a gas cooker, such as two burners 2 may be installed in a housing 1 .
[0151] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.
[0152] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.
Claims
1. A gas cooker, characterized in that: include: A housing having a storage space therein; A burner, wherein the burner is at least partially disposed in the accommodating space of the shell, and the burner comprises: A base, the base being used to connect to a gas supply pipeline; A flame distributor, the flame distributor is arranged on the base, and the flame distributor has a gas chamber connected to the gas supply pipeline; A fire cover, the fire cover is arranged above the fire distributor, a plurality of first recessed parts are arranged at intervals on the top surface of the fire cover, and the first recessed parts extend in the radial direction of the fire cover; Wherein, a plurality of fire holes are arranged at intervals in the first recessed portion, and the fire holes are communicated with the gas cavity.
2. A gas cooker according to claim 1, characterized in that: The fire hole is arranged on the bottom surface of the first recessed portion.
3. The gas cooker according to claim 1, characterized in that: The plurality of fire holes are distributed at intervals along the radial direction of the fire cover.
4. The gas cooker according to claim 1, characterized in that: The width of the first recessed portion is between 0.8 mm and 3 mm.
5. The gas cooker according to claim 1, characterized in that: The fire cover further comprises a second recessed portion, which is arranged on the bottom surface of the fire cover and extends along the circumference of the fire cover; The second recessed portion is communicated with the first recessed portion, and the connection point between the second recessed portion and the first recessed portion is the fire hole.
6. A gas cooker according to claim 5, characterized in that: A plurality of the second recessed portions are provided, the plurality of the second recessed portions are coaxially arranged, and the plurality of the second recessed portions are spaced apart and distributed along the radial direction of the fire cover.
7. The gas cooker according to claim 5, characterized in that: The width of the second recessed portion is between 0.8 mm and 3.5 mm.
8. A gas cooker according to any one of claims 1 to 7, characterized in that: The fire cover comprises an inner ring fire cover and an outer ring fire cover, wherein the outer ring fire cover is sleeved outside the inner ring fire cover; The first recessed portion and the fire hole are arranged on at least one of the outer ring fire cover and the inner ring fire cover.
9. A gas cooker according to any one of claims 1 to 7, characterized in that: The angle between the top surface of the fire cover and the horizontal plane is 0° to 45°, and the middle part of the fire cover protrudes upward to improve the gas combustion rate of the gas cooker.
10. A gas cooker, characterized in that: include: A housing having a storage space therein; A burner, wherein the burner is at least partially disposed in the accommodating space of the shell, and the burner comprises: A base, the base being used to connect to a gas supply pipeline; A flame distributor, the flame distributor is arranged on the base, and the flame distributor has a gas chamber connected to the gas supply pipeline; A fire cover, the fire cover is arranged above the fire distributor, a plurality of first recessed parts are arranged at intervals on the top surface of the fire cover, and the first recessed parts extend in the radial direction of the fire cover; A plurality of second recessed portions are arranged at intervals on the bottom surface of the fire cover, the second recessed portions are communicated with the gas chamber, and the second recessed portions extend along the circumference of the fire cover; Wherein, the first recessed portion and the second recessed portion are communicated with each other.