Burner and burner

Abstract

The utility model provides a furnace end and a combustor. The furnace end comprises a supporting frame, an injection pipe and a fixing piece with a penetrating hole. The supporting frame is provided with a first face and a second face, the first face and the second face are oppositely arranged, and a positioning hole is formed in the supporting frame and penetrates from the first face to the second face. A positioning step is formed on the outer wall of the injection pipe, the injection pipe is divided into a first pipe section and a second pipe section through the positioning step, the first pipe section penetrates through the positioning hole and the penetrating hole, and the positioning step abuts against the second face; the fixing piece is provided with a welding face and an exposed face opposite to the welding face, the penetrating hole penetrates from the exposed face to the welding face, the exposed face forms a welding ring on the periphery of the penetrating hole, the welding ring is welded to the outer wall of the first pipe section, and the welding face is welded to the first face. According to the utility model, not only is the welding operation convenient, but also the stable fixation of the injection pipe is realized, and the problem that the combustion efficiency of the combustor is influenced by the shaking of the injection pipe in use is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchenware, in particular to a stove head and a burner. Background Art

[0002] The burner head is generally made of cast iron or aluminum alloy. After a period of oil corrosion or prolonged high temperature, the burner can easily rust or deform. Therefore, in the existing burner heads, structural parts such as the ejector tube, the flame distributor seat and the flame distributor seat bracket are mostly made of stainless steel. The flame distributor seat is supported on the flame distributor seat bracket, and the outer wall of the ejector tube forms a positioning step. The flame distributor seat bracket is supported on the positioning step and is welded to each other to achieve connection and fixation. In this connection and fixation method, since the positioning step is located below the flame distributor seat bracket, the flame distributor seat bracket will affect the welding operation line of sight, resulting in very inconvenient welding operation. Utility Model Content

[0003] In order to at least partially solve the problems existing in the prior art, according to one aspect of the utility model, a burner head is provided, and the technical solution is as follows.

[0004] The furnace head includes a support frame, an ejector tube and a fixing member with a through hole; the support frame has a first surface and a second surface, the first surface and the second surface are arranged opposite to each other, a positioning hole is arranged on the support frame, and the positioning hole runs through the first surface to the second surface; a positioning step is formed on the outer wall of the ejector tube, and the ejector tube is divided into a first pipe section and a second pipe section by the positioning step, the first pipe section passes through the positioning hole and the through hole, and the positioning step abuts against the second surface; the fixing member has a welding surface and an exposed surface opposite to the welding surface, the through hole runs through from the exposed surface to the welding surface, a welding ring is formed on the exposed surface at the periphery of the through hole, the welding ring is welded to the outer wall of the first pipe section, and the welding surface is welded to the first surface.

[0005] In the burner head of the utility model, the fixing part is welded to the first surface of the support frame through the welding surface, and is welded to the outer wall of the first pipe section of the ejector tube through the welding ring, thereby avoiding the support frame affecting the sight line of the welding operation and facilitating the welding operation. Moreover, through this fixing method, the ejector tube is stably fixed in the direction along the central axis and in the circumferential direction of the ejector tube, thereby avoiding the ejector tube from shaking during use, which affects the combustion efficiency of the burner.

[0006] Exemplarily, the ejector tube includes an inner ring ejector tube and an outer ring ejector tube, a connecting frame is arranged between the inner ring ejector tube and the outer ring ejector tube, and the inner ring ejector tube and the outer ring ejector tube are respectively welded to the connecting frame to form an integral body. Such arrangement makes the relative position of the inner ring ejector tube and the outer ring ejector tube fixed, and the welding connection method is simple, and no other matching connectors are required, which saves costs.

[0007] Exemplarily, the positioning step includes an inner ring positioning step provided on the outer wall of the inner ring ejector tube, the positioning hole includes an inner ring positioning hole, the second surface is formed with an inner ring connecting portion around the inner ring positioning hole, the inner ring ejector tube is divided into an inner ring first tube section and an inner ring second tube section through the inner ring positioning step, the inner ring first tube section passes through the inner ring positioning hole, and the inner ring connecting portion is supported on the inner ring positioning step. In this arrangement, the inner ring connecting portion is supported on the inner ring positioning step, so that the inner ring positioning step limits the inner ring ejector tube, thereby avoiding the problem that the inner ring ejector tube is unstable after passing through the inner ring positioning hole, thereby increasing the difficulty of assembly.

[0008] Exemplarily, the fixing member includes an inner ring fixing member having an inner ring through hole, the exposed surface having a first exposed end face arranged on the inner ring fixing member, a first welding ring formed on the first exposed end face at the periphery of the inner ring through hole, and the first welding ring is welded to the outer wall of the first pipe section of the inner ring; the welding surface has a first welding end face arranged on the inner ring fixing member, the first surface has an inner ring welding portion formed around the inner ring positioning hole, and the first welding end face is welded to the inner ring welding portion. Through this fixing method, the inner ring ejector tube is fixed in the direction along the central axis and the circumferential direction of the inner ring ejector tube, avoiding the problem that the inner ring ejector tube shakes during use and affects the combustion efficiency of the burner, and the inner ring fixing member is located above the support frame, avoiding the problem that the support frame affects the sight of the welding operation and causes inconvenience in the welding operation.

[0009] Exemplarily, the inner ring fixing member has a thickness D1, and the thickness D1 is 2 mm to 4 mm. When the thickness of the inner ring fixing member is within this range, the connection firmness between the inner ring fixing member and the inner ring ejector tube can be ensured, and the space above the inner ring fixing member can be saved.

[0010] Exemplarily, the positioning step includes an outer ring positioning step provided on the outer wall of the outer ring ejector tube, the positioning hole includes an outer ring positioning hole, the second surface is formed with an outer ring connecting portion around the outer ring positioning hole, the outer ring ejector tube is divided into an outer ring first tube section and an outer ring second tube section through the outer ring positioning step, the outer ring first tube section passes through the outer ring positioning hole, and the outer ring connecting portion is supported on the outer ring positioning step. The outer ring connecting portion is supported on the outer ring positioning step, so that the outer ring positioning step limits the outer ring ejector tube, thereby avoiding the problem that the outer ring ejector tube is unstable after passing through the outer ring positioning hole, thereby increasing the difficulty of assembly.

[0011] Exemplarily, the fixing member includes an outer ring fixing member having an outer ring through hole, the exposed surface having a second exposed end face arranged on the outer ring fixing member, a second welding ring is formed on the second exposed end face at the periphery of the outer ring through hole, and the second welding ring is welded to the outer wall of the first pipe section of the outer ring; the welding surface has a second welding end face arranged on the outer ring fixing member, the first surface has an outer ring welding portion formed around the outer ring positioning hole, and the second welding end face is welded to the outer ring welding portion. Through this fixing method, the outer ring ejector tube is fixed in the direction along the central axis and the circumferential direction of the outer ring ejector tube, avoiding the problem that the outer ring ejector tube shakes during use and affects the combustion efficiency of the burner, and the outer ring fixing member is located above the support frame, avoiding the problem that the support frame affects the sight of the welding operation and causes inconvenience in the welding operation.

[0012] Exemplarily, the outer ring fixing member has a thickness D2, and the thickness D2 is 2 mm to 4 mm. When the thickness of the outer ring fixing member is within this range, the connection firmness between the outer ring fixing member and the outer ring ejector tube can be ensured, and the space above the outer ring fixing member can be saved.

[0013] Exemplarily, the connecting frame has a first welding portion and a second welding portion, at least a portion of the second pipe segment of the inner ring is welded to the first welding portion, and at least a portion of the second pipe segment of the outer ring is welded to the second welding portion. In this way, the inner ring ejector tube and the outer ring ejector tube can be fixed together through the connecting frame, so that the inner ring ejector tube and the outer ring ejector tube are more firmly connected to the support frame, thereby facilitating the improvement of the assembly efficiency of the entire burner.

[0014] Exemplarily, the first pipe section of the outer ring includes a first semicircular side wall, a second semicircular side wall, a first straight side wall and a second straight side wall which are arranged opposite to each other, the first straight side wall is connected between one end of the first semicircular side wall and one end of the second semicircular side wall, and the second straight side wall is connected between the other end of the first semicircular side wall and the other end of the second semicircular side wall. In this way, without increasing the size of the fire-distributing seat, the cross-sectional area of ​​the air outlet connected to the air inlet of the outer ring first pipe section and the fire-distributing seat is increased, thereby increasing the gas flux and achieving a better combustion effect of the burner.

[0015] Another aspect of the utility model provides a burner including a fire cover and the burner head as described above, wherein the fire cover is arranged on the burner head. Such arrangement improves the combustion efficiency of the burner, and the burner includes the burner head as described above, so it has the beneficial effects of the burner head as described above, which will not be described one by one here.

[0016] A series of simplified concepts are introduced in the utility model content, which will be further described in detail in the detailed implementation section. The utility model content section does not mean to attempt to define the key features and essential technical features of the technical solution claimed for protection, nor does it mean to attempt to determine the scope of protection of the technical solution claimed for protection.

[0017] The advantages and features of the present invention are described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following drawings of the present invention are used as part of the present invention for understanding the present invention. The drawings show the implementation of the present invention and its description, and are used to explain the principle of the present invention. In the drawings,

[0019] Figure 1 A three-dimensional diagram of a burner without a flame distributor seat according to an exemplary embodiment of the present invention;

[0020] Figure 2 for Figure 1 The exploded view of the burner shown is without the fire distributor;

[0021] Figure 3 for Figure 1 A stereoscopic view of the ejector tube and the connecting frame shown;

[0022] Figure 4 for Figure 3 A top view of

[0023] Figure 5 for Figure 1 A perspective view of the support frame shown (seen from one angle);

[0024] Figure 6 for Figure 1 A perspective view of the support frame shown (seen from another angle);

[0025] Figure 7 for Figure 2 A front view of the inner ring fixing shown;

[0026] Figure 8 for Figure 7 AA section view in;

[0027] Fig. 9 for Figure 2 A front view of the outer ring fixing shown;

[0028] Fig.10 for Fig. 9 BB section view in.

[0029] The above drawings include the following reference numerals:

[0030] 110, ejector tube; 111, positioning step; 1111, inner ring positioning step; 1112, outer ring positioning step; 112, first pipe section; 1121, inner ring first pipe section; 1122, outer ring first pipe section; 1123, first semicircular side wall; 1124, second semicircular side wall; 1125, first straight side wall; 1126, second straight side wall; 113, second pipe section; 1131, inner ring second pipe section; 1132, outer ring second pipe section; 114, inner ring ejector tube; 1141, inner ring bell mouth; 115, outer ring ejector tube; 1151, outer ring bell mouth; 120, support frame; 121, first surface; 1211, inner ring welding part; 1212, outer ring welding part; 122, second surface; 1221, inner ring Connecting part; 1222, outer ring connecting part; 123, positioning hole; 1231, inner ring positioning hole; 1232, outer ring positioning hole; 130, fixing part; 131, through hole; 1311, inner ring through hole; 1312, outer ring through hole; 132, welding surface; 1321, first welding end surface; 1322, second welding end surface; 133, exposed surface; 1331, first exposed end surface; 1332, second exposed end surface; 134, welding ring; 1341, first welding ring; 1342, second welding ring; 135, inner ring fixing part; 136, outer ring fixing part; 140, connecting frame; 141, first welding part; 142, second welding part; 150, damper; 151, inner ring damper; 152, outer ring damper. DETAILED DESCRIPTION

[0031] In the following description, a large number of details are provided so that the present invention can be thoroughly understood. However, it will be appreciated by those skilled in the art that the following description only illustrates preferred embodiments of the present invention, and the present invention can be implemented without one or more of such details. In addition, in order to avoid confusion with the present invention, some technical features known in the art are not described in detail.

[0032] In order to thoroughly understand the implementation of the utility model, a detailed structure will be presented in the following description. Obviously, the implementation of the utility model is not limited to the specific details familiar to those skilled in the art. The preferred implementation of the utility model is described in detail below, but in addition to these detailed descriptions, the utility model can also have other implementations.

[0033] The embodiment of the utility model provides a burner. The burner can be used in the field of kitchenware, including but not limited to. The burner provided by the utility model can be used in a burner. The burner according to the embodiment of the utility model will be described in detail below in conjunction with the accompanying drawings.

[0034] Combined with reference Figure 1 and Figure 2, the furnace head may include a support frame 120, an ejector tube 110 and a fixing member 130 having a through hole 131. The support frame 120 may have a first surface 121 and a second surface 122. The first surface 121 and the second surface 122 may be arranged opposite to each other. A positioning hole 123 may be arranged on the support frame 120. The positioning hole 123 may pass through from the first surface 121 to the second surface 122. A positioning step 111 may be formed on the outer wall of the ejector tube 110. The ejector tube 110 may be divided into a first pipe section 112 and a second pipe section 113 by the positioning step 111. The first pipe section 112 may pass through the positioning hole 123 and the through hole 131, and the positioning step 111 may abut against the second surface 122. During assembly, the first pipe section 112 passes through the positioning hole 123 from the second surface 122 toward the first surface 121. The fixing member 130 may have a welding surface 132 and an exposed surface 133 opposite to the welding surface 132. The perforation hole 131 may penetrate from the exposed surface 133 to the welding surface 132. The exposed surface 133 may form a welding ring 134 at the periphery of the perforation hole 131. The welding ring 134 may be welded to the outer wall of the first pipe section 112. In order to reduce the impact on the outer wall of the ejector tube 110 during welding, the welding ring 134 may be spot welded to the outer wall of the first pipe section 112. The welding surface 132 may be welded to the first surface 121. The fixing member 130 may be a sheet-shaped member, so that the cost can be reduced.

[0035] In the burner head of the utility model, the fixing part 130 is welded to the first surface 121 of the support frame 120 through the welding surface 132, and is welded to the outer wall of the first pipe section 112 of the ejector tube 110 through the welding ring 134, thereby avoiding the support frame 120 affecting the sight line of the welding operation, facilitating the welding operation, and through this fixing method, the ejector tube 110 is stably fixed in the direction along the central axis and in the circumferential direction of the ejector tube 110, avoiding the ejector tube 110 from shaking during use, thereby affecting the combustion efficiency of the burner.

[0036] In one embodiment of the present utility model, Figure 1 and Figure 3 , the ejector tube 110 may include an inner ring ejector tube 114 and an outer ring ejector tube 115. A connecting frame 140 may be provided between the inner ring ejector tube 114 and the outer ring ejector tube 115. The inner ring ejector tube 114 and the outer ring ejector tube 115 may be welded to the connecting frame 140 to form a whole. With such an arrangement, the relative positions of the inner ring ejector tube 114 and the outer ring ejector tube 115 can be fixed, and the welding connection method is simple, without the need for other matching connectors, thus saving costs. Of course, the connecting frame 140 may also be engaged with the inner ring ejector tube 114 and the outer ring ejector tube 115 respectively, and this connection method is simple, without the need for other matching connectors, thus saving costs.

[0037] In one embodiment of the present utility model, Figure 1 Hezhi Figure 3 , the inner ring ejector tube 114 and the outer ring ejector tube 115 can be arranged in parallel. The inner ring ejector tube 114 can have an inner ring bell mouth 1141. The outer ring ejector tube 115 can have an outer ring bell mouth 1151. The shape of the inner ring bell mouth 1141 and the shape of the outer ring bell mouth 1151 can both be circular, so as to reduce the loss of airflow. Of course, both can also have other shapes. The burner head also includes a damper 150. The damper 150 can be divided into an inner ring damper 151 and an outer ring damper 152. The inner ring damper 151 can be covered at the inner ring bell mouth 1141. The outer ring damper 152 is covered at the outer ring bell mouth 1151. In this way, the user can adjust the inner ring damper 151 and the outer ring damper 152 to control the size of the air intake (oxygen content) to change the combustion condition of the burner.

[0038] In one embodiment of the present utility model, Figure 2 , Figure 3 and Figure 6 , the positioning step 111 may include an inner ring positioning step 1111 provided on the outer wall of the inner ring ejector tube 114. The positioning hole 123 may include an inner ring positioning hole 1231. The second surface 122 may be formed with an inner ring connecting portion 1221 around the inner ring positioning hole 1231. The inner ring ejector tube 114 may be divided into an inner ring first pipe section 1121 and an inner ring second pipe section 1131 by the inner ring positioning step 1111. The inner ring first pipe section 1121 may pass through the inner ring positioning hole 1231, and the inner ring connecting portion 1221 may be supported on the inner ring positioning step 1111. During assembly, the inner ring first pipe section 1121 passes through the inner ring positioning hole 1231 from the second surface 122 toward the first surface 121. In order to ensure that the inner ring first pipe section 1121 can pass through the inner ring positioning hole 1231, the shapes of the inner ring first pipe section 1121 and the inner ring positioning hole 1231 may be similar. With such arrangement, the inner ring connecting portion 1221 is supported on the inner ring positioning step 1111, so that the inner ring positioning step 1111 limits the inner ring ejector tube 114, thereby avoiding the problem of the inner ring ejector tube 114 being unstable after passing through the inner ring positioning hole 1231, thereby increasing the difficulty of assembly.

[0039] In one embodiment of the present utility model, Figures 1 to 8, the fixing member 130 may include an inner ring fixing member 135 having an inner ring through hole 1311. The exposed surface 133 may have a first exposed end face 1331 disposed on the inner ring fixing member 135. A first welding ring 1341 may be formed on the first exposed end face 1331 at the periphery of the inner ring through hole 1311. The first welding ring 1341 may be welded to the outer wall of the inner ring first pipe section 1121. In order to reduce the impact on the outer wall of the inner ring ejector tube 114 during welding, the first welding ring 1341 may be spot welded to the outer wall of the inner ring first pipe section 1121. The welding surface 132 may have a first welding end face 1321 disposed on the inner ring fixing member 135. The first surface 121 may be formed with an inner ring welding portion 1211 around the inner ring positioning hole 1231. The first welding end face 1321 may be welded to the inner ring welding portion 1211. By this fixing method, the inner ring ejector tube 114 is fixed along the central axis direction and the circumferential direction of the inner ring ejector tube 114, avoiding the problem that the inner ring ejector tube 114 shakes during use and affects the combustion efficiency of the burner, and the inner ring fixing member 135 is located above the support frame 120, avoiding the problem that the support frame 120 affects the welding operation line of sight and causes inconvenience in welding operation. The inner ring fixing member 135 can be a sheet-shaped member, which can reduce costs.

[0040] In one embodiment of the present utility model, Figure 3 and Figure 8 The inner ring fixing member 135 may have a thickness D1, and the thickness D1 may be 2 mm to 4 mm. For example, the thickness D1 may be 2 mm, 3 mm, 4 mm, etc. When the thickness of the inner ring fixing member 135 is within this range, the connection firmness between the inner ring fixing member 135 and the inner ring ejector tube 114 can be ensured, and the space above the inner ring fixing member 135 can be saved.

[0041] In one embodiment of the present utility model, again in conjunction with reference to Figure 2 , Figure 3 and Figure 6, the positioning step 111 may include an outer ring positioning step 1112 provided on the outer wall of the outer ring ejector tube 115. The positioning hole 123 may include an outer ring positioning hole 1232. The second surface 122 may be formed with an outer ring connecting portion 1222 around the outer ring positioning hole 1232. The outer ring ejector tube 115 may be divided into an outer ring first pipe section 1122 and an outer ring second pipe section 1132 by the outer ring positioning step 1112. The outer ring first pipe section 1122 may pass through the outer ring positioning hole 1232, and the outer ring connecting portion 1222 may be supported on the outer ring positioning step 1112. During assembly, the outer ring first pipe section 1122 passes through the outer ring positioning hole 1232 from the second surface 122 toward the first surface 121. In order to ensure that the outer ring first pipe section 1122 can pass through the outer ring positioning hole 1232, the shapes of the outer ring first pipe section 1122 and the outer ring positioning hole 1232 may be similar. The outer ring connecting portion 1222 is supported on the outer ring positioning step 1112 so that the outer ring positioning step 1112 limits the outer ring ejector tube 115, thereby avoiding the problem of the outer ring ejector tube 115 being unstable after passing through the outer ring positioning hole 1232, thereby increasing the difficulty of assembly.

[0042] In one embodiment of the present utility model, Figures 1 to 6 , Figure 8 , Fig. 9 , the fixing member 130 may include an outer ring fixing member 136 having an outer ring through hole 1312. The exposed surface 133 may have a second exposed end face 1332 disposed on the outer ring fixing member 136. A second welding ring 1342 is formed on the second exposed end face 1332 at the periphery of the outer ring through hole 1312. The second welding ring 1342 and the outer wall of the outer ring first pipe section 1122 may be welded. In order to reduce the impact on the outer wall of the outer ring ejector tube 115 during welding, the second welding ring 1342 may be spot welded to the outer wall of the outer ring first pipe section 1122. The welding surface 132 may have a second welding end face 1322 disposed on the outer ring fixing member 136. The first surface 121 may be formed with an outer ring welding portion 1212 around the outer ring positioning hole 1232. The second welding end face 1322 and the outer ring welding portion 1212 may be welded. Through this fixing method, the outer ring ejector tube 115 is fixed along the central axis direction and the circumferential direction of the outer ring ejector tube 115, avoiding the problem that the outer ring ejector tube 115 shakes during use and affects the combustion efficiency of the burner, and the outer ring fixing member 136 is located above the support frame 120, avoiding the problem that the support frame 120 affects the welding operation line of sight and causes inconvenience in welding operation. The outer ring fixing member 136 can be a sheet-shaped member, which can reduce costs.

[0043] In one embodiment of the present utility model, Figure 3 and Fig.10The outer ring fixing member 136 may have a thickness D2, and the thickness D2 may be 2 mm to 4 mm. For example, the thickness D2 may be 2 mm, 3 mm, 4 mm, etc. When the thickness of the outer ring fixing member 136 is within this range, the connection firmness of the outer ring fixing member 136 to the outer ring ejector tube 115 can be ensured, and the space above the outer ring fixing member 136 can be saved.

[0044] In one embodiment of the present invention, refer to Figure 4 , the connecting frame 140 may have a first welding portion 141 and a second welding portion 142. At least a portion of the inner ring second pipe segment 1131 may be welded to the first welding portion 141. At least a portion of the outer ring second pipe segment 1132 may be welded to the second welding portion 142. In this way, the inner ring ejector tube 114 and the outer ring ejector tube 115 may be fixed together through the connecting frame 140, so that the inner ring ejector tube 114 and the outer ring ejector tube 115 are respectively connected to the support frame 120 more firmly, which is convenient for improving the assembly efficiency of the entire burner.

[0045] In one embodiment of the present utility model, refer again to Figure 4 , the outer ring first pipe section 1122 may include a first semicircular side wall 1123, a second semicircular side wall 1124, a first straight side wall 1125 and a second straight side wall 1126 that are relatively arranged. The first straight side wall 1125 may be connected between one end of the first semicircular side wall 1123 and one end of the second semicircular side wall 1124. The second straight side wall 1126 may be connected between the other end of the first semicircular side wall 1123 and the other end of the second semicircular side wall 1124. In this way, the shape of the outer ring first pipe section 1122 may be a runway shape. The burner head also includes a fire distribution seat (not shown in the figure), and the fire distribution seat may be placed on the support frame 120. In this way, without increasing the size of the fire distribution seat, the cross-sectional area of ​​the air outlet connected to the air inlet of the outer ring first pipe section 1122 and the fire distribution seat is increased, thereby increasing the gas flux and making the combustion effect of the burner better.

[0046] Another aspect of the utility model provides a burner, which may include a fire cover and the burner head as described above. The fire cover may be arranged on the burner head. Such arrangement improves the combustion efficiency of the burner. The burner includes the burner head as described above, and thus has the beneficial effects of the burner head as described above, which will not be described one by one here.

[0047] In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "front", "back", "up", "down", "left", "right", "lateral", "vertical", "vertical", "horizontal", "top", "bottom", etc. are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present invention; the directional words "inside" and "outside" refer to the inside and outside relative to the contours of each component itself.

[0048] For ease of description, regional relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the regional positional relationship between one or more components or features shown in the figure and other components or features. It should be understood that regional relative terms include not only the orientation of the components as described in the figure, but also different orientations in use or operation. For example, if the components in the accompanying drawings are inverted as a whole, the components "above other components or features" or "above other components or features" will include the situation where the components are "below other components or structures" or "below other components or structures". Therefore, the exemplary term "above" may include both "above" and "below". In addition, these components or features may also be positioned at other different angles (e.g., rotated 90 degrees or other angles), and this article is intended to include all of these situations.

[0049] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, parts, components and / or combinations thereof.

[0050] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0051] The utility model has been described through the above embodiments, but it should be understood that the above embodiments are only for the purpose of example and description, and are not intended to limit the utility model to the scope of the described embodiments. In addition, it can be understood by those skilled in the art that the utility model is not limited to the above embodiments, and more variations and modifications can be made according to the teachings of the utility model, and these variations and modifications all fall within the scope of protection claimed by the utility model. The protection scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A burner head, characterized in that: It includes a support frame, an ejector tube and a fixing member with a through hole; The support frame has a first surface and a second surface, the first surface is arranged opposite to the second surface, and a positioning hole is arranged on the support frame, and the positioning hole passes through from the first surface to the second surface; A positioning step is formed on the outer wall of the ejector tube, and the ejector tube is divided into a first tube section and a second tube section by the positioning step, the first tube section passes through the positioning hole and the penetration hole, and the positioning step abuts against the second surface; The fixing part has a welding surface and an exposed surface opposite to the welding surface, the penetration hole passes through the exposed surface to the welding surface, the exposed surface forms a welding ring around the penetration hole, the welding ring is welded to the outer wall of the first pipe section, and the welding surface is welded to the first surface.

2. The burner head according to claim 1, characterized in that: The ejector tube comprises an inner ring ejector tube and an outer ring ejector tube, a connecting frame is arranged between the inner ring ejector tube and the outer ring ejector tube, and the inner ring ejector tube and the outer ring ejector tube are respectively welded to the connecting frame to form an integral body.

3. The burner head according to claim 2, characterized in that: The positioning step includes an inner ring positioning step arranged on the outer wall of the inner ring ejector tube, the positioning hole includes an inner ring positioning hole, the second surface is formed with an inner ring connecting portion around the inner ring positioning hole, the inner ring ejector tube is divided into an inner ring first pipe section and an inner ring second pipe section through the inner ring positioning step, the inner ring first pipe section passes through the inner ring positioning hole, and the inner ring connecting portion is supported on the inner ring positioning step.

4. The burner head according to claim 3, characterized in that: The fixing part includes an inner ring fixing part having an inner ring through hole, the exposed surface includes a first exposed end face arranged on the inner ring fixing part, a first welding ring is formed on the first exposed end face at the periphery of the inner ring through hole, and the first welding ring is welded to the outer wall of the first pipe section of the inner ring; the welding surface includes a first welding end face arranged on the inner ring fixing part, the first surface forms an inner ring welding portion around the inner ring positioning hole, and the first welding end face is welded to the inner ring welding portion.

5. The burner head according to claim 4, characterized in that: The inner ring fixing member has a thickness D1, and the thickness D1 is 2 mm to 4 mm.

6. The burner head according to claim 3, characterized in that: The positioning step includes an outer ring positioning step arranged on the outer wall of the outer ring ejector tube, the positioning hole includes an outer ring positioning hole, the second surface forms an outer ring connecting portion around the outer ring positioning hole, the outer ring ejector tube is divided into an outer ring first pipe section and an outer ring second pipe section through the outer ring positioning step, the outer ring first pipe section passes through the outer ring positioning hole, and the outer ring connecting portion is supported on the outer ring positioning step.

7. The burner head according to claim 6, characterized in that: The fixing part includes an outer ring fixing part having an outer ring through hole, the exposed surface has a second exposed end face arranged on the outer ring fixing part, a second welding ring is formed on the second exposed end face at the periphery of the outer ring through hole, and the second welding ring is welded to the outer wall of the first pipe section of the outer ring; the welding surface has a second welding end face arranged on the outer ring fixing part, the first surface forms an outer ring welding part around the outer ring positioning hole, and the second welding end face is welded to the outer ring welding part.

8. The burner head according to claim 7, characterized in that: The outer ring fixing member has a thickness D2, and the thickness D2 is 2 mm to 4 mm.

9. The burner head according to claim 6, characterized in that: The connecting frame has a first welding portion and a second welding portion, at least a portion of the second pipe segment of the inner ring is welded to the first welding portion, and at least a portion of the second pipe segment of the outer ring is welded to the second welding portion.

10. The burner head according to claim 6, characterized in that: The first pipe section of the outer ring includes a first semicircular side wall, a second semicircular side wall, a first straight side wall and a second straight side wall which are arranged opposite to each other, wherein the first straight side wall is connected between one end of the first semicircular side wall and one end of the second semicircular side wall, and the second straight side wall is connected between the other end of the first semicircular side wall and the other end of the second semicircular side wall.

11. A burner, characterized in that: The utility model comprises a fire cover and a burner head as claimed in any one of claims 1 to 10, wherein the fire cover is arranged on the burner head.

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