Base assembly and upper air inlet burner thereof

Abstract

The utility model discloses a base assembly which comprises a base body, a positioning boss extending upwards is fixedly arranged at the center position of the top of the base body, and an air outlet seat extending upwards and located outside the positioning boss is fixedly arranged at the top of the base body. And the nozzle is mounted on the air outlet seat. According to the base assembly, only one positioning structure is arranged, the structure is simpler, dirt is not prone to being hidden, and cleaning is easier. The utility model further provides an upper air inlet burner.

Description

Technical Field

[0001] The utility model relates to the technical field of stoves, in particular to a base assembly and an upper air inlet burner thereof. Background Art

[0002] The existing upper air inlet burner has many positioning structures on the base, which is not simple enough, easy to hide dirt, and difficult to clean. In addition, after the fire cover is installed on the base through the fire distributor, it will shake when pressing the fire cover. Summary of the invention

[0003] The utility model aims to solve at least one of the problems existing in the existing related technologies to a certain extent. To this end, the utility model provides a base assembly with one and only one positioning structure, which is more concise, less likely to hide dirt, and easier to clean. The utility model also provides an upper air inlet burner.

[0004] According to the base assembly provided above, it is implemented through the following technical solution:

[0005] A base assembly comprises: a base body, a positioning boss extending upward is fixedly provided at the center position of the top of the base body, an air outlet seat extending upward and located outside the positioning boss is fixedly provided at the top of the base body; and a nozzle installed on the air outlet seat.

[0006] In some embodiments, the positioning boss is in any one of a single flat shape, a double flat shape, an elliptical shape or a polygonal shape.

[0007] In some embodiments, a hollow hole is provided inside the positioning boss, and the lower end of the hollow hole passes through the top plate of the base body.

[0008] In some embodiments, an outwardly extending mounting platform is fixedly provided on the outer side wall of the base body, and the mounting platform is used to support the liquid tray and to fix the ignition needle assembly.

[0009] In some embodiments, the mounting platform includes a fixed end and a free end connected in a "Z" shape, the free end is integrally formed with the outer side wall of the base body through the fixed end, and a mounting hole is provided on the free end.

[0010] In some embodiments, outwardly extending lugs are fixedly disposed on two opposite outer side walls of the base body, respectively, and / or a downwardly recessed annular step is disposed on the top periphery of the base body.

[0011] According to an upper air inlet burner provided above, it is realized by the following technical scheme: an upper air inlet burner, comprising: a base assembly as described above; and a flame divider, placed on the top of the base body, an ejector tube connected to the nozzle is provided at the bottom of the flame divider, a downwardly extending limit groove is fixedly provided at the position of the bottom of the ejector tube corresponding to the positioning boss, and the limit groove is matched and plugged with the positioning boss.

[0012] In some embodiments, a plurality of legs extending downward and located on two relatively outer sides of the ejector tube are fixedly provided at the bottom of the ignition divider, the bottom of the legs abuts against the top of the base body, and an air intake passage for secondary air to pass through is formed between adjacent legs.

[0013] In some embodiments, an arc-shaped reinforcing rib is provided at the bottom of the ignition divider and is located on two opposite outer sides of the ejector tube, and opposite ends of the arc-shaped reinforcing rib are respectively connected to opposite ends of the ejector tube, and the support foot extending downward is provided at the bottom of the arc-shaped reinforcing rib.

[0014] In some embodiments, a space-avoiding portion is provided at the bottom of the ignition divider at a position corresponding to the gas outlet seat, and the shape of the space-avoiding portion matches the shape of the upper end of the gas outlet seat; and / or a groove that is concave downward and open upward is provided at the top of the ignition divider at a position corresponding to the ejector tube.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects:

[0016] 1. The base assembly of the utility model is provided with a positioning boss and an air outlet seat on the top of the base body. Compared with the existing base, there is only one positioning structure, the structure is simpler, dirt is not easily hidden, and it is easier to clean;

[0017] 2. By arranging a mounting platform extending outward on the outer side wall of the base body, the mounting platform can be used to support the liquid tray and fix the ignition needle assembly, thereby fully improving the utilization rate of the mounting platform;

[0018] 3. By providing a plurality of supporting feet outside the ejector tube at the bottom of the ignition distributor, the bottoms of the plurality of supporting feet are respectively in contact with the top of the base body, which is helpful to keep the ignition distributor stable after installation and prevent shaking when pressing the burner fire cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the base assembly in the embodiment of the utility model;

[0020] Figure 2 This is a schematic structural diagram of an upper air inlet burner in an embodiment of the utility model;

[0021] Figure 3 is a cross-sectional view of an upper air inlet burner in an embodiment of the utility model;

[0022] Figure 4 It is a structural schematic diagram of the fire distributor in the embodiment of the utility model;

[0023] Figure 5 It is a cross-sectional view of the fire distributor in the embodiment of the utility model.

[0024] In the figure: 1-fire distributor, 111-pressure stabilizing chamber, 112-mixing chamber, 12-injection tube, 13-arc reinforcing rib, 14-groove, 15-fixing hole, 17-avoiding position, 18-limiting groove, 19-support foot; 2-ignition needle assembly; 3-fire cover, 31-mixing chamber, 32-fire hole, 33-connecting part, 34-brim; 4-base assembly, 401-base body, 402-nozzle, 41-positioning boss, 411-hollow hole, 42-mounting platform, 421-mounting hole, 43-gas outlet seat, 44-lug, 441-screw hole, 45-annular step. DETAILED DESCRIPTION

[0025] The following examples illustrate the present invention, but the present invention is not limited by these examples. Modifications to the specific implementation of the present invention or equivalent replacement of some technical features without departing from the spirit of the present invention should be included in the scope of the technical solution claimed for protection in the present invention.

[0026] Example 1

[0027] refer to Figure 1-3 This embodiment provides a base assembly, including a base body 401 and a nozzle 402, wherein a positioning boss 41 extending upward is integrally formed at the center of the top of the base body 401, and the positioning boss 41 is used to quickly position the ignition distributor of the burner. In addition, an air outlet seat 43 extending upward and located outside the positioning boss 41 is integrally formed at the top of the base body 401, and the central axis of the air outlet seat 43 is located on the same plane as the central axis of the positioning boss 41, and a nozzle 402 arranged horizontally or obliquely is arranged on the air outlet seat 43, and the air outlet direction of the nozzle 40 is toward directly above the positioning boss 41.

[0028] It can be seen that the top of the base body 401 of this embodiment has only one positioning boss and one air outlet seat. Compared with the existing base, such as the base disclosed in CN218721473U, the positioning structure is less, the structure of the top of the base body 401 is simpler, dirt is not easy to hide, and it is easier to clean.

[0029] In this embodiment, the positioning boss 41 is in a double flat shape or a waist shape. Of course, the positioning boss 41 can also be set to be in a single flat shape, an ellipse or a polygon to limit the rotation of the burner's ignition device relative to the positioning boss 41. Figure 3 Specifically, a hollow hole 411 is provided inside the positioning boss 41, and the lower end of the hollow hole 411 penetrates downwardly through the top plate of the base body 401 to achieve the effects of saving material, reducing weight, and facilitating demoulding; the upper end of the hollow hole 411 is designed not to penetrate upward through the top of the positioning boss 41, so that the upper end of the positioning boss 41 is closed, making it easier to clean the base body 401. Of course, the upper end of the hollow hole 411 can also be designed to penetrate upward through the top of the positioning boss 41.

[0030] refer to Figure 1-2 An outwardly extending mounting platform 42 is integrally formed on the outer side wall of the base body 401. In this way, by placing the mounting platform 42 externally, the mounting platform 42 can be used to support the liquid tray and to fix the ignition needle assembly, thereby fully improving the utilization rate of the mounting platform, avoiding the ignition needle assembly installation occupying the top space of the base body 401, and ensuring that the structure of the top of the base body 401 is simpler and easier to clean.

[0031] In this embodiment, the mounting platform 42 includes a fixed end and a free end connected in a "Z" shape, wherein the fixed end is higher than the free end, and the free end is integrally formed with the outer wall of the base body 401 through the fixed end, wherein the top of the fixed end is used to support the liquid tray, and a mounting hole 421 is provided on the free end, and the mounting hole 421 is used to fix the ignition needle assembly.

[0032] refer to Figure 1 A plurality of lugs 44 extending outward are formed integrally on two opposite outer side walls of the base body 401, and a screw hole 441 is provided on each lug 44, so that the liquid tray can be reliably supported and fixed by the lug 44. In addition, a downwardly recessed annular step 45 is provided on the top periphery of the base body 401, and the annular step 45 is used to reliably support the liquid tray. In this embodiment, the annular step 45 is flush with the top of the lug 44 and the top of the fixed end of the mounting platform 42, respectively.

[0033] Example 2

[0034] refer to Figure 2-5The present embodiment provides an upper air inlet burner, comprising a base assembly and a igniter 1 as described in the embodiment 1, wherein the igniter 1 is placed on the top of the base body 401, and the igniter 1 has a pressure stabilizing chamber 111 and a mixing chamber 112, the pressure stabilizing chamber 111 and the mixing chamber are connected end to end and communicated, and an inclined ejector tube 12 is integrally formed at the bottom of the igniter 1. Of course, the ejector tube can also be designed to be arranged horizontally, and the opposite ends of the ejector tube 12 are respectively connected to the nozzle 402 of the base assembly 1 and the pressure stabilizing chamber 111. A downward extending limiting groove 18 is integrally formed at the position corresponding to the positioning boss 41 at the bottom of the ejector tube 12, and the shape of the limiting groove 18 corresponds to the shape of the positioning boss 41, and the limiting groove 18 is matched and plugged with the positioning boss 41, so that the igniter 1 can be quickly positioned, and it is ensured that the igniter 1 cannot rotate relative to the positioning boss 41.

[0035] In this embodiment, four legs 19 extending downward and located on the two opposite outer sides of the ejector tube 12 are integrally formed at the bottom of the fire divider 1. Each leg 19 is arc-shaped, and the bottom of each leg 19 abuts against the top of the base body 401. This is conducive to keeping the fire divider 1 stable after installation and preventing shaking when pressing the fire cover of the burner. An air intake channel (not shown in the figure) for secondary air to pass through is formed between adjacent legs 19, so as to supply the burner with secondary air required for combustion. Specifically, an arc-shaped reinforcing rib 13 located on the two opposite outer sides of the ejector tube 12 is integrally formed at the bottom of the fire divider 1. The opposite ends of the arc-shaped reinforcing rib 13 are respectively connected to the opposite ends of the ejector tube 12. Legs 19 extending downward are integrally formed at the opposite ends of the bottom of each arc-shaped reinforcing rib. This is conducive to strengthening the overall strength of the fire divider 1 and facilitating the setting of the legs 19.

[0036] refer to Figure 3-4 At the bottom of the ignition divider 1, a position corresponding to the entrance of the ejector tube 12 is provided with an avoidance position 17. The shape of the avoidance position 17 matches the shape of the upper end of the gas outlet seat 43. The avoidance position 17 is used to reserve installation space for the gas outlet seat 43 to avoid interference when the ignition divider 1 is installed. At the top of the ignition divider 1, a position corresponding to the ejector tube 12 is provided with a groove 14 that is concave downward and open upward. In this embodiment, the bottom surface of the groove 14 is arranged with one end close to the pressure stabilizing chamber 111 being high and the other end being low, and the groove 14 passes through the central axis of the ignition divider 1. In this way, it is convenient to save materials and ensure the consistency of the tube wall thickness of the ejector tube 12, and it is convenient to process and demould the ejector tube 12. In addition, two fixing holes 15 located on the opposite outer sides of the groove 14 and the ejector tube 12 are provided on the ignition divider 1 for fixing the fire cover of the burner.

[0037] refer to Figure 2-3In this embodiment, the fire divider 1 is in the shape of a truncated cone with a large lower end and a small upper end. In this way, the smaller surface on the top of the fire divider 1 is used to install the fire cover 3, which is beneficial to reducing the diameter of the fire cover, so that the flame is gathered at the bottom of the pot, and the heating efficiency is improved; and the orthographic projection of the larger surface at the bottom of the fire divider 1 is used to cover the air outlet seat 43 on the base body 401 and the screws installed in the screw holes 441, which is beneficial to prevent the soup overflowing from the pot from flowing into the nozzle 402 to block the nozzle hole and corrode the screw.

[0038] Specifically, the upper air inlet burner further includes an ignition needle assembly 2 and a fire cover 3, wherein the fire cover 3 is disposed on the top of the ignition distributor 1 and is detachably connected to the ignition distributor 1, and an air mixing chamber 31 is formed between the fire cover 3 and the ignition distributor 1, and the air mixing chamber 31 is respectively connected to the pressure stabilizing chamber and the mixing chamber, and a plurality of fire holes 32 are arranged at intervals on the peripheral wall of the fire cover 3, and the fire holes 32 are connected to the air mixing chamber 31. The ignition needle assembly 2 is disposed outside the ignition distributor 1 and the fire cover 3, and the lower end of the ignition needle assembly 5 is detachably mounted on the free end of the mounting platform 42.

[0039] Specifically, two connecting parts 33 extending downward and located in the gas mixing chamber 31 are fixedly provided on the top of the fire cover 3. The two connecting parts 33 are arranged one by one with the two fixing holes 15 of the igniter 1. When installed, the two connecting parts 33 are respectively against the top of the igniter 1, and fasteners (such as screws) are used to pass through the fixing holes 15 from bottom to top and then fastened to the connecting parts 33, so that the fire cover 3 and the igniter 1 can be detachably connected as a whole to form a burner head. In addition, a convex brim 34 is integrally formed on the upper end of the outer wall of the fire cover 3. The brim 34 is used to protect the discharge part of the ignition needle assembly 2 and prevent the soup after overflowing from falling into the discharge part of the ignition assembly and affecting the ignition performance.

[0040] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A base assembly, characterized in that: include: A base body (401), a positioning boss (41) extending upward is fixedly provided at the center position of the top of the base body (401), and an air outlet seat (43) extending upward and located outside the positioning boss (41) is fixedly provided at the top of the base body (401); and The nozzle (402) is installed on the air outlet seat (43).

2. A base assembly according to claim 1, characterized in that: The positioning boss (41) is in any one of a single flat shape, a double flat shape, an ellipse or a polygon.

3. A base assembly according to claim 1 or 2, characterized in that: A hollow hole (411) is provided inside the positioning boss (41), and the lower end of the hollow hole (411) passes through the top plate of the base body (401).

4. A base assembly according to claim 1, characterized in that: An outwardly extending mounting platform (42) is fixedly provided on the outer side wall of the base body (401); the mounting platform (42) is used to support the liquid storage tray and to fix the ignition needle assembly.

5. A base assembly according to claim 4, characterized in that: The mounting platform (42) comprises a fixed end and a free end connected in a "Z" shape, the free end is integrally formed with the outer side wall of the base body (401) through the fixed end, and a mounting hole (421) is provided on the free end.

6. A base assembly according to claim 1 or 4, characterized in that: Lugs (44) extending outwards are respectively fixedly provided on two opposite outer side walls of the base body (401), and / or an annular step (45) recessed downwards is provided on the top periphery of the base body (401).

7. An upward air inlet burner, characterized in that: include: A base assembly as described in any one of claims 1 to 6; as well as The ignition divider (1) is placed on the top of the base body (401), and an ejector tube (12) connected to the nozzle (402) is provided at the bottom of the ignition divider (1), and a downwardly extending limiting groove (18) is fixedly provided at the position of the bottom of the ejector tube (12) corresponding to the positioning boss (41), and the limiting groove (18) is matched and plugged with the positioning boss (41).

8. The upward air inlet burner according to claim 7, characterized in that: A plurality of legs (19) extending downward and located on two relatively outer sides of the ejector tube (12) are fixedly provided at the bottom of the ignition divider (1), the bottom of the legs (19) abuts against the top of the base body (401), and an air intake passage for secondary air to pass through is formed between adjacent legs (19).

9. The upward air inlet burner according to claim 8, characterized in that: The bottom of the ignition distributor (1) is provided with an arc-shaped reinforcing rib (13) located on two opposite outer sides of the ejector tube (12), the opposite ends of the arc-shaped reinforcing rib (13) are respectively connected to the opposite ends of the ejector tube (12), and the supporting foot (19) extending downward is provided at the bottom of the arc-shaped reinforcing rib (13).

10. The upward air inlet burner according to claim 7, characterized in that: A space-avoiding portion (17) is provided at a position on the bottom of the ignition divider (1) corresponding to the gas outlet seat (43), and the shape of the space-avoiding portion (17) matches the shape of the upper end of the gas outlet seat (43); and / or a groove (14) that is concave downward and open upward is provided at a position on the top of the ignition divider (1) corresponding to the ejector tube (12).

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