Air door adjusting device, burner assembly and gas stove

Abstract

The utility model provides an air door adjusting device, burner assembly and gas stove, the air door adjusting device includes: an air door sheet, the air door sheet is arranged at the inlet of the burner injection pipe, the air door sheet includes a frustum portion, the frustum portion is at least partially located inside the inlet of the injection pipe, so that an annular gap is formed between the frustum portion and the inlet of the injection pipe; and the adjusting group is in transmission connection with the air flap and is used for driving the air flap to move along the axis so as to adjust the size of the annular gap. The air door adjusting device provided by the embodiment of the utility model is more uniform in air intake.

Description

Technical Field

[0001] The utility model relates to the technical field of gas stoves, in particular to an air door regulating device, a burner assembly and a gas stove. Background Art

[0002] The primary air regulation of a gas stove is an important factor in determining the degree of gas combustion. The primary air regulation scheme for a gas stove is generally to set two air flaps with holes at the inlet of the burner ejector pipe. By rotating one of the air flaps, the corresponding areas of the holes on the two air flaps are changed, thereby changing the area of ​​the primary air intake duct and achieving the purpose of regulating the primary air intake.

[0003] The air intake passage for the induced air generated by the air flap of the existing solution is in the form of a local hole, which results in a reduced and uneven amount of induced air and insufficient mixing with the fuel gas, thus causing combustion problems such as high combustion smoke and low thermal efficiency. Utility Model Content

[0004] The embodiments of the utility model provide a damper adjustment device, a burner assembly and a gas stove to at least solve some of the above technical problems existing in the prior art.

[0005] In a first aspect, an embodiment of the utility model provides a damper adjustment device, comprising:

[0006] An air flap is arranged at the inlet of the ejector tube of the burner, the air flap comprises a frustum portion, the frustum portion is at least partially located inside the inlet of the ejector tube, so that an annular gap is formed between the frustum portion and the inlet of the ejector tube;

[0007] The adjusting component is drivingly connected to the air flap and is used for driving the air flap to move along the axis so as to adjust the size of the annular gap.

[0008] In an optional embodiment, a nozzle assembly is further included, and the nozzle assembly includes:

[0009] Mounting seat;

[0010] a nozzle, the nozzle being mounted on the mounting seat;

[0011] The nozzle is provided with an external thread, the air flap is provided with an internal thread hole, the air flap is threadedly connected to the nozzle, and the adjustment assembly drives the air flap to rotate relative to the nozzle so as to move along the axis.

[0012] In an optional embodiment, the air flap further includes a gear portion, and the gear portion is relatively far away from the inlet of the ejector tube relative to the frustum portion;

[0013] The adjustment component comprises:

[0014] A driving gear meshed with the gear portion to drive the air flap to rotate relative to the nozzle, wherein the axis of the driving gear is parallel to the axis of the gear portion;

[0015] A transmission member connected to the driving gear;

[0016] The adjusting knob is connected to the transmission member so as to drive the driving gear through the transmission member.

[0017] In an optional embodiment, the transmission member includes a flexible shaft, one end of which is connected to the driving gear, and the other end of which is connected to the adjusting knob.

[0018] In an optional embodiment, the rotation axis of the adjusting knob is not colinear with the rotation axis of the driving gear.

[0019] In an optional embodiment, the rotation axis of the adjusting knob is perpendicular to the rotation axis of the driving gear.

[0020] In a second aspect, an embodiment of the utility model provides a burner assembly, including a burner and a damper adjustment device according to an embodiment of the utility model.

[0021] In an optional embodiment, the inlet end of the ejector tube includes a cylindrical section and a variable diameter section, the inner cavity of the cylindrical section is cylindrical, the frustum portion is at least partially located inside the cylindrical section, the variable diameter section is connected to the end of the cylindrical section away from the air flap, and the inner diameter of the variable diameter section gradually decreases in the direction away from the cylindrical section.

[0022] In a third aspect, an embodiment of the utility model provides a gas stove, comprising a body and a burner assembly according to an embodiment of the utility model, wherein the adjustment assembly is arranged on the body.

[0023] In an optional embodiment, the body includes a panel and a bottom shell, and the adjustment component is arranged on the bottom shell.

[0024] An embodiment of the present invention has the following advantages or beneficial effects:

[0025] The damper adjustment device of the embodiment of the utility model includes a damper plate arranged at the inlet of the ejector tube of the burner and an adjustment component that is transmission-connected to the damper plate, the damper plate includes a frustum portion, the frustum portion is at least partially located inside the inlet of the ejector tube, so that an annular gap is formed between the frustum portion and the inlet of the ejector tube; the adjustment component is used to drive the damper plate to move along the axis to adjust the size of the annular gap. An annular gap is formed between the frustum portion of the damper plate and the inlet of the ejector tube, so that air can enter the ejector tube along the annular gap, the air intake is more uniform, the primary air mixing effect is improved, and the air can be guided to increase the ejected gas volume and reduce the energy loss during collision, so as to be more conducive to the mixing of air and fuel gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.

[0027] Figure 1 is a schematic diagram of a structure of a damper adjustment device according to an exemplary embodiment Figure 1 ;

[0028] Figure 2 is a schematic diagram of a cross-sectional structure of a damper adjustment device according to an exemplary embodiment Figure 1 ;

[0029] Figure 3 is a schematic diagram of a cross-sectional structure of a damper adjustment device according to an exemplary embodiment Figure 2 .

[0030] Among them, the figure numbers are explained as follows: 10-air flap, 11-conical part, 12-gear part, 20-adjusting assembly, 21-gear, 22-transmission member, 23-adjusting knob, 24-knob seat, 30-burner, 31-injection tube, 311-cylindrical section, 312-reducing section, 4-nozzle assembly, 41-mounting seat, 42-nozzle, 50-annular gap. DETAILED DESCRIPTION

[0031] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present invention will be comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their detailed description will be omitted.

[0032] The terms "a", "an", "the", "" are used to indicate the presence of one or more elements / components / etc.; the terms "including" and "having" are used to express an open-ended inclusive meaning and mean that additional elements / components / etc. may be present in addition to the listed elements / components / etc.

[0033] The embodiment of the utility model provides a damper adjustment device, including a damper 10 and an adjustment assembly 20. The damper 10 is arranged at the entrance of the ejector tube 31 of the burner 30. The damper 10 includes a frustum 11. The frustum 11 is at least partially located inside the entrance of the ejector tube 31, so that an annular gap 50 is formed between the frustum 11 and the entrance of the ejector tube 31. The air enters the ejector tube 31 along the annular gap 50, and the entrance of the ejector tube 31 forms air intake all around, so that the air intake is more uniform, and the air mixing effect is improved. In addition, the surface of the frustum 11 can guide the air, increase the ejected gas volume, and reduce the energy loss during collision, so as to be more conducive to the mixing of air and gas.

[0034] The adjusting assembly 20 is connected to the air flap 10 in a transmission manner, and is used to drive the air flap 10 to move along the axis to adjust the size of the annular gap 50. The air flap 10 is moved along the axis by the adjusting assembly 20. When the air flap 10 moves away from the inlet of the ejection tube 31, the annular gap 50 increases, and the air intake volume can be increased. When the air flap 10 moves toward the inlet of the ejection tube 31, the annular gap 50 decreases, and the air intake volume can be reduced.

[0035] In some embodiments, the damper adjustment assembly 20 also includes a nozzle assembly 4, which includes: a mounting seat 41 and a nozzle 42, and the nozzle 42 is mounted on the mounting seat 41; the mounting seat 41 can be connected to the body of the gas stove, and the nozzle 42 mounted on the mounting seat 41 is opposite to the inlet of the ejector tube 31 to spray the gas into the ejector tube 31.

[0036] The nozzle 42 has an external thread, the air flap 10 has an internal thread hole, the air flap 10 is threadedly connected to the nozzle 42, and the adjustment component 20 drives the air flap 10 to rotate relative to the nozzle 42 to move along the axis. The air flap 10 and the nozzle 42 are threadedly matched, and when the air flap 10 rotates relative to the nozzle 42, the air flap 10 moves along the axial direction of the nozzle 42 under the action of the thread. The air flap 10 is arranged on the nozzle 42, so that the air flap 10 and the nozzle 42 can be arranged concentrically, and no additional components are required to arrange the air flap 10, which simplifies the structure and saves materials.

[0037] In some embodiments, the air flap 10 further includes a gear portion 12, which is located away from the inlet of the ejector tube 31 relative to the cone portion 11. The air flap 10 is provided with the gear portion 12 so that the adjustment assembly 20 drives the air flap 10 to move through the gear 21.

[0038] The adjustment assembly 20 includes a driving gear 21, a transmission member 22, and an adjustment knob 23. The driving gear 21 is meshed with the gear portion 12 to drive the air flap 10 to rotate relative to the nozzle 42. The axis of the driving gear 21 is parallel to the axis of the gear portion 12. The driving gear 21 is meshed with the gear portion 12. When the driving gear 21 rotates, the air flap 10 is driven to rotate. When the air flap 10 rotates relative to the nozzle 42, the air flap 10 moves axially relative to the nozzle 42 under the action of the thread, thereby adjusting the size of the annular gap 50. When the air flap 10 moves axially relative to the nozzle 42, the air flap 10 also moves axially relative to the driving gear 21. The transmission member 22 is connected to the driving gear 21; the adjustment knob 23 is connected to the transmission member 22 to drive the driving gear 21 through the transmission member 22. The user can adjust the movement of the air flap 10 by operating the adjustment knob 23. When the user rotates the adjusting knob 23 , the transmission member 22 transmits the torque to the driving gear 21 . The driving gear 21 rotates under the drive of the transmission member 22 , thereby driving the air flap 10 to rotate.

[0039] The driving gear 21 may be arranged on the mounting seat 41, or may be arranged on a gear 21 seat alone. The mounting seat 41 and / or the gear 21 seat may be connected to the burner 30, or may be connected to the body of the gas stove. The mounting seat 41 and / or the gear 21 seat may be an integrated structure with the body, or may be a separate structure. The mounting seat 41 and / or the gear 21 seat may be connected to the body by welding, screws, etc.

[0040] The adjusting knob 23 may be directly or indirectly arranged on the fuselage. For example, the adjusting knob 23 may be arranged on a knob seat 24, and the knob seat 24 is connected to the fuselage. The adjusting knob 23 may also be directly arranged on the fuselage, for example, it may be arranged at the bottom of the fuselage.

[0041] In some embodiments, the transmission member 22 includes a flexible shaft, one end of which is connected to the driving gear 21, and the other end is connected to the adjusting knob 23. The flexible shaft can be freely bent for transmission, and can connect two axes with different axes or two axes with relative motion to transmit rotational motion and torque. The use of a flexible shaft can flexibly transmit rotational motion and torque to any position.

[0042] In some embodiments, the rotation axis of the adjusting knob 23 is not colinear with the rotation axis of the driving gear 21. The rotation axis of the adjusting knob 23 and the rotation axis of the driving gear 21 may be parallel, or non-parallel. When the rotation axis of the adjusting knob 23 and the rotation axis of the driving gear 21 are non-parallel, they may be crossed or non-parallel.

[0043] In some embodiments, the rotation axis of the adjusting knob 23 is perpendicular to the rotation axis of the driving gear 21. The rotation axis of the adjusting knob 23 and the rotation axis of the driving gear 21 may be perpendicular to each other in different planes or in the same plane.

[0044] The embodiment of the utility model provides a burner assembly, which includes a burner 30 and a damper adjustment device according to the embodiment of the utility model.

[0045] In some embodiments, the inlet end of the ejector tube 31 includes a cylindrical section 311 and a diameter-reducing section 312, the inner cavity of the cylindrical section 311 is cylindrical, the frustum portion 11 is at least partially located inside the cylindrical section 311, the diameter-reducing section 312 is connected to the end of the cylindrical section 311 away from the air flap 10, and the inner diameter of the diameter-reducing section 312 gradually decreases in a direction away from the cylindrical section 311. By changing the inner diameter of the diameter-reducing section 312, the airflow velocity can be changed to introduce air into the burner 30.

[0046] In some embodiments, the inlet end of the ejector tube 31 includes a diameter-reducing section 312 , and the frustum portion 11 is at least partially located in the diameter-reducing section 312 . The inner diameter of the diameter-reducing section 312 gradually decreases in a direction away from the cylindrical section 311 .

[0047] The burner 30 may include two ejector tubes 31, each ejector tube 31 being provided with a damper adjustment device. The nozzles 42 may share the same mounting seat 41. The middle portion of the mounting seat 41 may be connected to the middle of one end of the inlet of the two ejector tubes 31.

[0048] The embodiment of the utility model provides a gas stove, which comprises a body and a burner assembly of the embodiment of the utility model, and an adjustment assembly 20 is arranged on the body.

[0049] In some embodiments, the body includes a panel and a bottom shell, and the adjustment component 20 is disposed on the bottom shell.

[0050] The gas stove of the embodiment of the utility model comprises an integrated stove.

[0051] In the embodiments of the present invention, the term "multiple" refers to two or more than two, unless otherwise clearly defined. The terms "installation", "connection", "fixation" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to the specific circumstances.

[0052] In the description of the embodiments of the present invention, it is necessary to understand that the terms "upper" and "lower" etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the embodiments of the present invention.

[0053] In the description of this specification, the description of the terms "one embodiment", "a preferred embodiment", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0054] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A damper adjustment device, characterized in that: include: A damper (10) is arranged at the entrance of an ejector tube (31) of a burner (30), the damper (10) comprising a frustum portion (11), the frustum portion (11) being at least partially located inside the entrance of the ejector tube (31), so that an annular gap (50) is formed between the frustum portion (11) and the entrance of the ejector tube (31); An adjustment component (20) is drivingly connected to the air flap (10) and is used to drive the air flap (10) to move along an axis to adjust the size of the annular gap (50).

2. The damper adjustment device according to claim 1, characterized in that: Also included is a nozzle assembly (4), the nozzle assembly (4) comprising: Mounting seat (41); A nozzle (42), the nozzle (42) being mounted on the mounting seat (41); The nozzle (42) has an external thread, the air flap (10) has an internal thread hole, the air flap (10) is threadedly connected to the nozzle (42), and the adjustment component (20) drives the air flap (10) to rotate relative to the nozzle (42) to move along the axis.

3. The damper adjustment device according to claim 2, characterized in that: The air flap (10) further comprises a gear portion (12), wherein the gear portion (12) is located away from the inlet of the ejector tube (31) relative to the cone portion (11); The adjustment component (20) comprises: a driving gear (21) meshing with the gear portion (12) to drive the air flap (10) to rotate relative to the nozzle (42), wherein the axis of the driving gear (21) is parallel to the axis of the gear portion (12); A transmission member (22) connected to the driving gear (21); The adjusting knob (23) is connected to the transmission member (22) so as to drive the driving gear (21) through the transmission member (22).

4. The damper adjustment device according to claim 3, characterized in that: The transmission member (22) comprises a flexible shaft, one end of which is connected to the driving gear (21), and the other end of which is connected to the adjusting knob (23).

5. The damper adjustment device according to claim 4, characterized in that: The rotation axis of the adjusting knob (23) is not colinear with the rotation axis of the driving gear (21).

6. The damper adjustment device according to claim 5, characterized in that: The rotation axis of the adjusting knob (23) is perpendicular to the rotation axis of the driving gear (21).

7. A burner assembly, characterized in that: It comprises a burner (30) and the air door adjustment device according to any one of claims 1 to 6.

8. The burner assembly according to claim 7, characterized in that The inlet end of the ejector tube (31) comprises a cylindrical section (311) and a diameter-reducing section (312); the inner cavity of the cylindrical section (311) is cylindrical; the frustum portion (11) is at least partially located inside the cylindrical section (311); the diameter-reducing section (312) is connected to an end of the cylindrical section (311) away from the air flap (10); and the inner diameter of the diameter-reducing section (312) gradually decreases in a direction away from the cylindrical section (311).

9. A gas stove, comprising a body, characterized in that: It also comprises the burner assembly according to any one of claims 7 to 8, wherein the adjustment assembly (20) is arranged on the fuselage.

10. The gas stove according to claim 9, characterized in that: The body comprises a panel and a bottom shell, and the adjustment component (20) is arranged on the bottom shell.

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