Lightweight furnace end assembly structure

Abstract

The utility model relates to the technical field of combustors, in particular to a light-weight furnace end assembly structure which comprises an upper cover, a middle cover and a lower cover, an outer ring upper splicing groove and an inner ring upper splicing groove are formed in the upper cover, and an outer ring lower splicing groove and an inner ring lower splicing groove are formed in the lower cover. The lower cover is provided with a concave position, the projection of the concave position in the vertical direction covers the inner ring lower splicing groove, and the projection of the concave position and the projection of the outer ring lower splicing groove in the vertical direction are not overlapped. The middle cover is composed of an inner ring middle splicing groove and an extending edge, the middle cover is matched with the concave position, and the middle cover is installed in the concave position. The middle cover is composed of the inner ring middle splicing groove and the extending edge, the concave position is arranged on the lower cover, the projection of the concave position in the vertical direction covers the inner ring lower splicing groove, the projection of the concave position and the projection of the outer ring lower splicing groove in the vertical direction are not overlapped, the middle cover is matched with the concave position and installed in the concave position, a traditional furnace end assembly structure is changed, and the furnace end assembly structure is simple in structure and convenient to use. And the structure of the middle cover is simplified, so that the burner is light.

Description

Technical Field

[0001] The utility model relates to the technical field of burners, in particular to a lightweight burner head assembly structure. Background Art

[0002] The patent with publication number CN212108387U discloses a burner, a burner and a cooking device, wherein the burner includes a burner body, and the burner body includes an upper stamping sheet, an intermediate stamping sheet and a lower stamping sheet which are sequentially spliced ​​vertically, the upper stamping sheet is formed with an outer tube upper splicing groove, an inner tube upper splicing groove and a base upper splicing groove which are concave upwards, the intermediate stamping sheet is formed with an outer tube middle splicing groove and an inner tube middle splicing groove which are concave in opposite directions, and a lower stamping sheet which is concave in opposite directions. The middle splicing groove of the base is recessed upward, and the lower stamping sheet is formed with a downwardly recessed outer tube lower splicing groove and an inner tube lower splicing groove; wherein the outer tube upper splicing groove, the outer tube middle splicing groove and the outer tube lower splicing groove are aligned and spliced ​​into the outer ejector tube, the inner tube upper splicing groove, the inner tube middle splicing groove and the inner tube lower splicing groove are aligned and spliced ​​into the inner ejector tube, and the base upper splicing groove and the base middle splicing groove are aligned and spliced ​​into the annular base.

[0003] The burner head body of the above technology is formed by stacking and assembling an upper stamping sheet, a middle stamping sheet and a lower stamping sheet, and the middle stamping sheet is provided with an outer tube middle splicing groove, an inner tube middle splicing groove and a base middle splicing groove. The structure of the middle stamping sheet is relatively complex, which makes the burner head heavier as a whole. There is room for improvement in the structure of the middle stamping sheet and the assembly structure of the burner head. Utility Model Content

[0004] In order to solve the above technical problems, the purpose of the utility model is to provide a lightweight furnace head assembly structure.

[0005] The technical solution adopted by the utility model to solve the problem is:

[0006] A lightweight stove head assembly structure comprises an upper cover, a middle cover and a lower cover, wherein the upper cover is provided with an outer ring upper splicing groove and an inner ring upper splicing groove, and the lower cover is provided with an outer ring lower splicing groove and an inner ring lower splicing groove; the lower cover is provided with a recess, the projection of the recess in the vertical direction covers the inner ring lower splicing groove, and the projections of the recess and the outer ring lower splicing groove in the vertical direction do not overlap; the middle cover is composed of an inner ring middle splicing groove and an extended edge, the middle cover is adapted to the recess, and the middle cover is installed in the recess.

[0007] As a further improvement of the above technical solution, the projection of the recess in the vertical direction covers the front end of the lower splicing groove of the inner ring, and the length of the middle splicing groove of the inner ring is smaller than the length of the lower splicing groove of the inner ring.

[0008] As a further improvement of the above technical solution, the lower splicing groove of the inner ring is recessed downward, the middle splicing groove of the inner ring and the upper splicing groove of the inner ring are both recessed upward, and the inner side wall of the upper splicing groove of the inner ring is fitted with the outer side wall of the middle splicing groove of the inner ring; a clamping ring is provided on the outer side wall of the middle splicing groove of the inner ring, and a clamping groove is provided on the inner side wall of the upper splicing groove of the inner ring, and the clamping ring is clamped in the clamping groove.

[0009] As a further improvement of the above technical solution, the middle cover is fixedly connected in the recess by spot welding.

[0010] The beneficial effects of the utility model are as follows: the middle cover of the utility model is composed of the middle splicing groove of the inner ring and the extended edge. A recess is provided on the lower cover, and the projection of the recess in the vertical direction covers the lower splicing groove of the inner ring. The projections of the recess and the lower splicing groove of the outer ring in the vertical direction do not overlap. The middle cover is adapted to the recess and installed in the recess, which changes the traditional furnace head assembly structure, simplifies the structure of the middle cover, and makes the furnace head lightweight. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The utility model is further explained below in conjunction with the accompanying drawings and specific implementation methods.

[0012] Figure 1 It is a schematic diagram of the structure decomposition of the utility model;

[0013] Figure 2 This is a schematic diagram of the assembly structure of the middle cover and the lower cover of the utility model;

[0014] Figure 3 This is a top view of the overall structure of the utility model;

[0015] Figure 4 for Figure 3 Sectional view at CC;

[0016] Figure 5 for Figure 3 Sectional view at DD in the middle;

[0017] Figure 6 for Figure 5 A schematic diagram of the structure enlargement at the center A;

[0018] In the figure: 1-upper cover, 11-upper splicing groove of outer ring, 12-upper splicing groove of inner ring, 121-clamping groove, 2-middle cover, 21-middle splicing groove of inner ring, 211-clamping ring, 22-extended edge, 3-lower cover, 31-lower splicing groove of outer ring, 32-lower splicing groove of inner ring, 33-recess, 4-hollow inner sleeve, 5-hollow outer sleeve, 61-first inner ring airway, 62-second inner ring airway, 71-first outer ring airway, 72-second outer ring airway. DETAILED DESCRIPTION

[0019] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0020] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0021] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0022] Reference Figures 1 to 6 , a lightweight furnace head assembly structure, comprising an upper cover 1, a middle cover 2 and a lower cover 3, wherein the upper cover 1, the middle cover 2 and the lower cover 3 are all stamping parts, the upper cover 1 is integrally provided with an outer ring upper splicing groove 11 and an inner ring upper splicing groove 12 which are concave upwards, and the lower cover 3 is integrally provided with an outer ring lower splicing groove 31 and an inner ring lower splicing groove 32 which are concave downwards; the lower cover 3 is provided with a concave position 33 which is lower than the upper end surface of the lower cover 3, the projection of the concave position 33 in the vertical direction covers the inner ring lower splicing groove 32, and the projection of the concave position 33 and the outer ring lower splicing groove 31 in the vertical direction do not overlap; the middle cover 2 is composed of an inner ring middle splicing groove 21 and an extended edge 22; the middle cover 2 is adapted to the concave position 33, the middle cover 2 is installed in the concave position 33, and the upper end surface of the extended edge 22 is flush with the upper end surface of the lower cover 3. During assembly, the middle cover 2 is first covered on the concave position 33, and then the upper cover 1 is covered on the lower cover 3. The middle cover 2 of the utility model reduces the portion covered on the lower joint groove 31 of the outer ring, thereby simplifying the structure of the middle cover 2. By setting the concave position 33 on the lower cover 3, the middle cover 2 cooperates with the concave position 33, and optimizes the assembly structure between the middle cover 2 and the lower cover 3, making the stove head lightweight.

[0023] In a preferred embodiment, the projection of the concave position 33 in the vertical direction covers the front end of the inner ring lower splicing groove 32, and the length of the inner ring middle splicing groove 21 is smaller than the length of the inner ring lower splicing groove 32. The structure of the middle cover 2 is further simplified, making the furnace head lightweight.

[0024] In a preferred embodiment, the inner ring lower splicing groove 32 is concave downward, the inner ring middle splicing groove 21 and the inner ring upper splicing groove 12 are both concave upward, and the inner side wall of the inner ring upper splicing groove 12 fits with the outer side wall of the inner ring middle splicing groove 21; Figure 6 As shown, a clamping ring 211 is provided on the outer side wall of the inner ring middle splicing groove 21, and a clamping groove 121 is provided on the inner side wall of the inner ring upper splicing groove 12, and the clamping ring 211 is clamped in the clamping groove 121. By providing the clamping ring 211 and the clamping groove 121, the stability of the burner head assembly structure is improved.

[0025] In a preferred embodiment, the middle cover 2 is fixedly connected in the recess 33 by spot welding.

[0026] Specifically, in some embodiments, the outer ring upper splicing groove 11 and the outer ring lower splicing groove 31 are spliced ​​to form a first outer ring air duct 71; the inner ring lower splicing groove 32, the inner ring middle splicing groove 21 and the inner ring upper splicing groove 12 are spliced ​​to form a first inner ring air duct 61; the first outer ring air duct 71 and the first inner ring air duct 61 are isolated from each other; the front end of the first inner ring air duct 61 is connected with a hollow inner sleeve 4, the hollow inner sleeve 4 extends upward, and the middle part of the hollow inner sleeve 4 has a second inner ring air duct 62, the first inner ring air duct 61 and the second inner ring air duct 62 form a complete inner ring air duct; a hollow outer sleeve 5 is integrally provided on the upper cover 1, the hollow outer sleeve 5 is sleeved on the outer periphery of the hollow inner sleeve 4, there is a gap between the hollow outer sleeve 5 and the hollow inner sleeve 4 and forms a second outer ring air duct 72, the first outer ring air duct 71 is connected with the second outer ring air duct 72 and forms a complete outer ring air duct.

[0027] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention specification and drawings under the utility model concept, or directly or indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A lightweight furnace head assembly structure, comprising an upper cover (1), a middle cover (2) and a lower cover (3), wherein the upper cover (1) is provided with an outer ring upper splicing groove (11) and an inner ring upper splicing groove (12), and the lower cover (3) is provided with an outer ring lower splicing groove (31) and an inner ring lower splicing groove (32); Features: The lower cover (3) is provided with a concave position (33), the projection of the concave position (33) in the vertical direction covers the lower splicing groove (32) of the inner ring, and the projection of the concave position (33) and the lower splicing groove (31) of the outer ring in the vertical direction do not overlap; The middle cover (2) is composed of an inner ring middle splicing groove (21) and an extended edge (22); the middle cover (2) is adapted to the recess (33); and the middle cover (2) is installed in the recess (33).

2. A lightweight burner head assembly structure according to claim 1, characterized in that: The projection of the concave position (33) in the vertical direction covers the front end of the inner ring lower splicing groove (32), and the length of the inner ring middle splicing groove (21) is smaller than the length of the inner ring lower splicing groove (32).

3. A lightweight burner head assembly structure as claimed in claim 2, characterized in that: The inner ring lower splicing groove (32) is concave downward, the inner ring middle splicing groove (21) and the inner ring upper splicing groove (12) are both concave upward, and the inner side wall of the inner ring upper splicing groove (12) is in contact with the outer side wall of the inner ring middle splicing groove (21); A snap ring (211) is provided on the outer side wall of the inner ring middle splicing groove (21), and a snap groove (121) is provided on the inner side wall of the inner ring upper splicing groove (12), and the snap ring (211) is snapped into the snap groove (121).

4. A lightweight furnace head assembly structure as claimed in claim 3, characterized in that: The middle cover (2) is fixedly connected in the recess (33) by spot welding.

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