Damper adjusting mechanism and gas stove comprising same
By designing a connecting part on the gas stove that connects to the top of the damper plate and extends to the outside of the bottom shell, the problem of difficult damper plate adjustment and burns is solved, achieving safe and convenient damper adjustment and air ejection effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO FOTILE KITCHEN WARE CO LTD
- Filing Date
- 2025-07-16
- Publication Date
- 2026-07-07
AI Technical Summary
The damper of existing gas stoves is difficult to adjust and poses a risk of burns, and users cannot intuitively understand the changes in the damper opening.
Design a damper adjustment mechanism that connects to the top of the damper plate via a connecting part and extends to the outside of the cooktop bottom shell. Users can directly operate the connecting part to rotate the damper plate. An indicator is added to display the damper opening status on the outside of the cooktop bottom shell.
It avoids the risk of burns, improves ease of operation and cooking efficiency, and enhances the air ejection capability and the intuitiveness of damper adjustment.
Smart Images

Figure CN224470282U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of gas equipment, and in particular to a damper adjustment mechanism and a gas stove containing the damper. Background Technology
[0002] In existing designs, the air damper of gas stoves is typically a plate-like structure with legs. Users need to manually move the legs to adjust the degree to which the damper blocks the air inlet of the injector pipe. However, when the gas stove is operating, heat is directly transferred to the air damper. Users risk burns by manually moving the small legs protruding from the bottom surface of the stove. Furthermore, the small legs are obscured from above by the bottom surface, limiting the user's observation when adjusting the air damper and making it difficult to visually determine whether the damper has been widened or narrowed.
[0003] Therefore, how to design a structure that works in conjunction with the damper so that users can generate heat relatively far from the gas stove, and how to allow users to intuitively understand how their adjustment operations will cause changes in the damper opening, has become an urgent problem to be solved in this technical field. Utility Model Content
[0004] The technical problem to be solved by this utility model is to overcome the defect that it is difficult for users to adjust the damper of the stove in the prior art, and to provide a damper adjustment mechanism and a gas stove including the damper.
[0005] The present invention solves the above-mentioned technical problems through the following technical solution:
[0006] An air damper adjustment mechanism includes an air damper plate that rotates to change the degree to which it blocks the air inlet of an ejector tube. The air damper adjustment mechanism further includes a connecting part that is connected to the top of the air damper plate. One end of the connecting part passes through and extends to the outside of the bottom shell of the stove. The connecting part can move along the tangential direction of the top of the air damper plate to drive the air damper plate to rotate.
[0007] This damper adjustment mechanism connects to the damper plate via a connecting part, with one end of the connecting part passing through and extending to the outside of the cooktop's bottom shell. Users can directly operate the connecting part to rotate the damper plate, thereby adjusting the degree to which the damper plate blocks the air inlet of the injector pipe. The connecting part connects to the top of the damper plate and extends to the outside of the cooktop's bottom shell, ensuring that the portion of the connecting part extending to the outside of the cooktop's bottom shell is further from the heat source (damper plate) and has a lower temperature, thus avoiding the risk of burns from accidental contact with high-temperature components.
[0008] At the same time, the connection part is connected to the top of the damper plate, which frees up the space occupied by the small support legs currently used at the bottom of the damper plate, allowing more air from the primary air inlet on the bottom shell of the stove to enter the ejector tube, thereby improving the air ejection capability of the stove using this damper adjustment mechanism.
[0009] Preferably, the damper adjustment mechanism further includes an indicator, which is formed at one end of the connection portion located on the outside of the bottom shell of the stove.
[0010] By adding an indicator and placing it on one end of the outer shell of the cooktop, the current opening status of the air damper can be clearly displayed to the user. With this setting, users do not need to rely on experience or repeated adjustments to judge the air intake volume. They can quickly and accurately adjust the air damper to the appropriate position according to cooking needs, improving operational convenience and cooking efficiency.
[0011] Preferably, the indicator is provided on the side of the stove bottom shell, with a part of the indicator on one side of the plane where the side of the stove bottom shell is located, and the other part of the indicator on the other side of the plane where the side of the stove bottom shell is located.
[0012] By placing the two parts of the indicator on opposite sides of the plane where the bottom shell of the stove is located, it is easier for users to observe the extension length of the indicator on the outer side of the bottom shell of the stove, and thus determine the current opening state of the damper.
[0013] Preferably, the indicator part is provided with a cutout, and the two sides of the cutout extend at an angle.
[0014] As the connecting part moves the indicator part, the size and direction of the hollowed-out angled opening change dynamically. Users can observe the changes in the hollowed-out shape to perceive the increase or decrease of the damper opening in real time, which is more dynamic and intuitive than static indicator scales.
[0015] Preferably, the opening of the included angle is arranged parallel to the horizontal component of the connecting portion that moves along the top tangent direction of the damper plate.
[0016] When the connecting part moves along the top tangent of the damper plate, its horizontal component directly corresponds to the change in damper opening. By aligning the angled opening of the cutout parallel to this horizontal component, a direct mapping between the visual direction and the operating direction can be achieved. When the user pushes the connecting part to one side, the cutout moves synchronously towards that side, creating consistency between the operating direction and the angled opening of the cutout. This aligns with intuitive ergonomic operating habits and reduces cognitive bias during adjustments.
[0017] Preferably, the connecting portion includes a first segment and a second segment. One end of the first segment is connected to the top of the damper plate and extends horizontally along the tangent direction of the top of the damper plate. The second segment is connected to the other end of the first segment and is arranged perpendicular to the first segment. The second segment passes through and extends to the outside of the bottom shell of the stove.
[0018] Designing the connection section as a segmented design of the first and second sections is more conducive to avoiding the original structure of the gas stove, making the internal design space of the gas stove more compact. Furthermore, setting the first section to extend horizontally and the second section to be perpendicular to the first section reduces the manufacturing difficulty of the connection section.
[0019] Preferably, the top of the damper plate is provided with a protrusion, and the connecting part is connected to the protrusion.
[0020] By setting a protrusion on the damper plate to cooperate with the connection part, the original structure of the damper plate, such as the thin-walled material, can be avoided by drilling or cutting, while also preserving the original hydrodynamic properties of the damper plate and avoiding the impact on the uniformity of airflow after cutting the damper plate.
[0021] Preferably, the protrusion is disposed on the support leg of the damper plate.
[0022] The molding mold for the conventional support leg has been put into production. The protrusion can be set directly using the original conventional support leg design on the damper plate, without the need to open a new mold, which greatly saves design and manufacturing costs.
[0023] Preferably, the damper plate and the connecting part are connected by a pin and pin hole structure.
[0024] After the pin is inserted into the pin hole, the limiting part can be axially fixed immediately, which can realize the rapid positioning and locking of the damper plate and the connecting part, improve the assembly efficiency, and the pin and pin hole structure is a simple mechanical fit with relatively low processing or use costs.
[0025] This utility model also provides a gas stove, which includes the damper adjustment mechanism as described above, and the bottom shell of the stove is provided with a notch that matches the end of the connecting part located on the outside of the bottom shell of the stove.
[0026] The positive and progressive effects of this utility model are as follows:
[0027] This damper adjustment mechanism connects to the damper plate via a connecting part, with one end of the connecting part passing through and extending to the outside of the cooktop's bottom shell. Users can directly operate the connecting part to rotate the damper plate, thereby adjusting the degree to which the damper plate blocks the air inlet of the injector pipe. The connecting part connects to the top of the damper plate and extends to the outside of the cooktop's bottom shell, ensuring that the portion of the connecting part extending to the outside of the cooktop's bottom shell is further away from the heat source and at a lower temperature, thus avoiding the risk of burns from accidental contact with hot components.
[0028] At the same time, the connection part is connected to the top of the damper plate, which frees up the space occupied by the small support legs currently used at the bottom of the damper plate, allowing more air from the primary air inlet on the bottom shell of the stove to enter the ejector tube, thereby improving the air ejection capability of the stove using this damper adjustment mechanism. Attached Figure Description
[0029] Figure 1 This is a cross-sectional view of a gas stove according to an embodiment of the present invention.
[0030] Figure 2 This is a perspective view (a) of a gas stove according to an embodiment of the present invention.
[0031] Figure 3 This is a perspective view (II) of a gas stove according to an embodiment of the present invention.
[0032] Figure 4 This is a perspective view (iii) of a gas stove according to an embodiment of the present invention.
[0033] Figure 5 This is a perspective view (four) of a gas stove according to an embodiment of the present invention.
[0034] Figure 6 This is a perspective view (V) of a gas stove according to an embodiment of the present utility model.
[0035] Figure 7 This is a perspective view of a damper adjustment mechanism according to an embodiment of the present invention.
[0036] Figure 8 This is a perspective view of the connecting part and the indicating part according to an embodiment of the present utility model.
[0037] Explanation of reference numerals in the attached figures:
[0038] 1000 gas stoves
[0039] Damper adjustment mechanism 1
[0040] 10 damper plates
[0041] Top 11
[0042] Protrusion 12
[0043] Connecting part 30
[0044] Paragraph 1, 31
[0045] Paragraph 2, 32
[0046] Instruction section 40
[0047] Hollow out 41
[0048] ejector tube 2
[0049] Air inlet 21
[0050] Stove bottom shell 5
[0051] outer 50
[0052] Side view 51
[0053] Bottom 52
[0054] Gap 53
[0055] 60 pins
[0056] 70 pin hole
[0057] Top tangent direction A
[0058] included angle θ Detailed Implementation
[0059] The present invention will be described more clearly and completely below with reference to the accompanying drawings, using a preferred embodiment.
[0060] Example 1
[0061] like Figures 1-8 As shown, this utility model provides a damper adjustment mechanism 1, which includes a damper plate 10. The damper plate 10 rotates and changes the degree to which it blocks the air inlet 21 of the ejector tube 2. The damper adjustment mechanism 1 also includes a connecting part 30, which is connected to the top of the damper plate 10. One end of the connecting part 30 passes through and extends to the outer side 50 of the stove bottom shell 5. In this embodiment, the connecting part 30 is specifically composed of a first segment 31 and a second segment 32. The first segment 31 is horizontally arranged along the top tangent direction A of the damper plate 10. The second segment 32 is connected to the end of the first segment 31 away from the damper plate 10 and is arranged perpendicular to the first segment 31. The second segment 32 passes through the bottom surface 52 of the stove bottom shell 5. The connecting part 30 can move along the top tangent direction A of the damper plate 10 to drive the damper plate 10 to rotate.
[0062] The connecting part 30 connects to the top 11 of the damper plate 10, and one end of the connecting part 30 passes through and extends to the outside of the bottom shell 5 of the stove. The user can directly operate the connecting part 30 to rotate the damper plate 10, thereby adjusting the degree to which the damper plate 10 blocks the air inlet 21 of the injector pipe 2. The connecting part 30 is located outside the gas stove 1000, away from the high-temperature working area of the gas stove 1000. Based on this design of the connecting part 30, the user does not need to approach the high-temperature flame area when adjusting the damper plate 10, avoiding the risk of burns due to accidental contact with high-temperature components. In this embodiment, the connecting part 30 moves horizontally along the top tangent direction A of the damper plate 10. In other embodiments, the movement trajectory of the connecting part 30 can be adjusted according to its specific design shape. This part falls within the scope of existing technology in this field and will not be elaborated further here.
[0063] like Figures 1-8 As shown, in this embodiment, the damper adjustment mechanism 1 also includes an indicator 40, which is formed at one end of the connecting part 30 located on the outside of the stove bottom shell 5.
[0064] By adding an indicator 40 and placing it on one end of the outer side of the cooktop base 5, the current opening state of the air damper 10 can be intuitively displayed to the user. With this setting, the user does not need to rely on experience or repeated adjustments to judge the air intake volume. According to cooking needs, the user can quickly and accurately adjust the air damper 10 to the appropriate position by operating the connecting part 30 while observing the changes in the positional relationship between the indicator 40 and the cooktop base 5, thus improving operational convenience and cooking efficiency.
[0065] like Figures 1-8 As shown, in this embodiment, the indicator 40 is provided corresponding to the side 51 of the stove bottom shell 5. A part of the indicator 40 is on one side of the plane where the side 51 of the stove bottom shell 5 is located, and the other part of the indicator 40 is on the other side of the plane where the side 51 of the stove bottom shell 5 is located.
[0066] By placing the two parts of the indicator 40 on the two sides of the plane of the side 51 of the stove bottom shell 5, it is easier for the user to observe the extension length of the indicator 40 on the side 51 of the stove bottom shell 5, and thus determine the current opening state of the damper plate 10.
[0067] like Figures 1-8 As shown, in this example, the indicator part 40 is provided with a right-angled triangle-shaped cutout 41, and the two sides of the cutout 41 extend in the direction of the included angle θ.
[0068] When the connecting part 30 moves the indicating part 40, the size and direction of the opening formed by the extension directions of the two sides of the hollow 41 will change dynamically. Users can observe the changes in the shape of the hollow 41 and perceive the increase or decrease of the damper opening in real time, which is more dynamic and intuitive than static indicator scales. In this embodiment, the hollow is a right-angled triangle. In other embodiments, the hollow can also be designed as an irregular triangle, trapezoid, or other shapes where the extension directions of the two sides form an angle, as long as the positional difference of the connecting part 30 is visible during adjustment. The specific shape used is within the scope of existing technology in this field and will not be elaborated here.
[0069] like Figures 1-8 As shown, in this embodiment, the opening direction of the included angle θ is set parallel to the horizontal component of the connecting part 30 moving along the top tangential direction A of the damper plate 10.
[0070] When the connecting part 30 moves along the top tangent direction A of the damper plate 10, its horizontal component direction directly corresponds to the change in damper opening. At this time, aligning the included angle θ of the cutout 41 with this horizontal component allows for a direct mapping between the visual direction and the operating direction. When the user pushes the connecting part 30 to one side, the cutout 41 moves synchronously to that side, creating consistency between the operating direction and the included angle θ of the cutout 41, conforming to intuitive ergonomic operating habits and reducing cognitive bias during adjustment.
[0071] like Figures 1-8 As shown, in this embodiment, the connecting part 30 includes a first section 31 and a second section 32. One end of the first section 31 is connected to the top 11 of the damper plate 10 and extends horizontally along the top tangent direction A of the damper plate 10. The second section 32 is connected to the other end of the first section 31 and is set perpendicular to the first section 31. The second section 32 passes through and extends to the outside of the bottom shell 5 of the stove.
[0072] Setting the connecting part 30 as a segmented design of the first segment 31 and the second segment 32 is more conducive to avoiding the original structure of the gas stove 1000, making the internal design space of the gas stove 1000 more compact. Furthermore, setting the first segment 31 as a horizontal extension and the second segment 32 as perpendicular to the first segment 31 reduces the manufacturing difficulty of the connecting part 30.
[0073] like Figures 1-8 As shown, a protrusion 12 is provided on the top 11 of the damper plate 10, and the connecting part 30 is connected to the protrusion 12.
[0074] By providing a protrusion 12 on the damper plate 10 that cooperates with the connecting part 30, the original structure of the thin-walled material such as the damper plate 10 can be avoided by drilling or cutting, and the original hydrodynamic properties of the damper plate 10 are preserved, thus avoiding the impact on the uniformity of airflow after cutting the damper plate 10.
[0075] like Figures 1-8 As shown, in this embodiment, the protrusion 12 of the damper adjustment mechanism 1 is provided on the support leg (not shown in the figure) of the damper plate 10.
[0076] The mold for the conventional support leg has been put into production. The protrusion 12 is set directly using the original conventional support leg design on the damper plate 10, without the need to open a new mold, which greatly saves design and manufacturing costs.
[0077] like Figures 1-8 As shown, in this embodiment, the damper plate 10 and the connecting part 30 are connected by a pin 60 and a pin hole 70.
[0078] In this embodiment, after the pin 60 is inserted into the pin hole 70, the limiting part can be immediately axially fixed, enabling rapid positioning and locking of the damper plate 10 and the connecting part 30, improving assembly efficiency. Furthermore, the structure of the pin 60 and the pin hole 70, as a simple mechanical fit, has relatively low processing or usage costs. Of course, in other embodiments, the connecting part 30 and the damper plate 10 can also be connected using other conventional mechanical components. This part falls within the scope of existing technology and will not be elaborated upon here.
[0079] This utility model also provides a gas stove 1000, which includes the damper adjustment mechanism 1 as described above, and the bottom shell 5 of the stove is provided with a notch 53 that matches the end of the connecting part 30 located on the outside of the bottom shell 5 of the stove.
[0080] By providing a gas stove 1000 with an air damper adjustment mechanism 1, wherein the connecting part 30 is connected to the top 11 of the air damper plate 10, and one end of the connecting part 30 passes through and extends to the outside of the stove bottom shell 5, the user can directly operate the connecting part 30 to rotate the air damper plate 10, thereby adjusting the degree to which the air damper plate 10 blocks the air inlet 21 of the injector tube 2. The operating part 30 is located outside the gas stove 1000, away from the high-temperature working area of the gas stove 1000. Based on this setting of the connecting part 30, the user does not need to approach the high-temperature flame area when adjusting the air damper plate 10, avoiding the risk of burns caused by accidental contact with high-temperature components. At the same time, by adding an indicator part 40 and placing it at one end of the outside of the stove bottom shell 5, the current opening state of the air damper plate 10 can be intuitively displayed to the user. With this setup, users do not need to rely on experience or repeated adjustments to judge the air intake volume. According to cooking needs, users can quickly and accurately adjust the damper plate 10 to the appropriate position by operating the connecting part 30 while observing the changes in the positional relationship between the indicator 40 and the bottom shell 5 of the stove. This improves the convenience of operation and cooking efficiency.
[0081] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.
Claims
1. A damper adjustment mechanism, comprising a damper plate that rotates to change the degree to which it blocks the air inlet of an ejector tube, characterized in that, The damper adjustment mechanism further includes a connecting part, which is connected to the top of the damper plate. One end of the connecting part passes through and extends to the outside of the bottom shell of the stove. The connecting part can move along the top tangent direction of the damper plate to drive the damper plate to rotate.
2. The damper adjustment mechanism as described in claim 1, characterized in that, The damper adjustment mechanism also includes an indicator, which is formed at one end of the connection portion located on the outside of the bottom shell of the stove.
3. The damper adjustment mechanism as described in claim 2, characterized in that, The indicator is provided on the side of the stove bottom shell, with one part of the indicator on one side of the plane where the side of the stove bottom shell is located, and the other part of the indicator on the other side of the plane where the side of the stove bottom shell is located.
4. The damper adjustment mechanism as described in claim 2, characterized in that, The indicator part has a cutout, and the two sides of the cutout extend at an angle.
5. The damper adjustment mechanism as described in claim 4, characterized in that, The opening of the included angle is parallel to the horizontal component of the connecting portion that moves along the top tangent direction of the damper plate.
6. The damper adjustment mechanism as described in claim 1, characterized in that, The connecting part includes a first section and a second section. One end of the first section is connected to the top of the damper plate and extends horizontally along the tangent direction of the top of the damper plate. The second section is connected to the other end of the first section and is arranged perpendicular to the first section. The second section passes through and extends to the outside of the bottom shell of the stove.
7. The damper adjustment mechanism as described in claim 1, characterized in that, The top of the damper plate is provided with a protrusion, and the connecting part is connected to the protrusion.
8. The damper adjustment mechanism as described in claim 7, characterized in that, The protrusion is provided on the support leg of the damper plate.
9. The damper adjustment mechanism as described in claim 1, characterized in that, The damper plate and the connecting part are connected by a pin and pin hole structure.
10. A gas stove, characterized in that, It includes the damper adjustment mechanism as described in any one of claims 1-9, wherein the bottom shell of the stove is provided with a notch that matches the end of the connecting part located on the outside of the bottom shell of the stove.