Air door adjusting mechanism and gas stove

Abstract

The utility model belongs to kitchen appliance technical field, specifically disclose a kind of air door adjusting mechanism and gas stove, air door adjusting mechanism includes air door plate, first adjusting plate, second adjusting plate and nozzle, first shaft hole and the N first air hole being set around first shaft hole are equipped on air door plate, second shaft hole and the N second air hole and N first shielding part being set around second shaft hole are equipped on first adjusting plate;Third shaft hole and the N third air hole and N second shielding part being set around third shaft hole are equipped on second adjusting plate;Nozzle is worn in first shaft hole, second shaft hole and third shaft hole, air door plate is fixed opposite with nozzle, first adjusting plate and second adjusting plate can rotate opposite nozzle, first shielding part and second shielding part are used to shield first air hole.The air door adjusting mechanism provided by the utility model is flexible in the adjustment of the ventilation area of first air hole, with sufficient one-time air intake.

Description

Technical Field

[0001] This utility model relates to the field of kitchen appliance technology, and in particular to a damper adjustment mechanism and a gas stove. Background Technology

[0002] The main function of the air damper on a gas stove is to regulate the amount of air entering, control the size and color of the flame, and ensure that the gas is fully combusted to improve efficiency and safety.

[0003] In related technologies, the air damper adjustment mechanism of a gas stove typically includes an air damper plate and an adjusting plate. The air damper adjustment mechanism controls the primary air intake of the gas stove by adjusting the opening of the ventilation holes on the air damper plate, i.e., adjusting the obstruction of the ventilation holes by the adjusting plate. The air damper plate usually has two ventilation holes. To ensure the air damper can be completely closed, the central angle of the ventilation holes is generally set to 90°, and the sum of the central angles of the two ventilation holes is 180°. This results in a relatively small adjustable range for the ventilation hole opening. Especially when the gas stove uses a fully premixed burner, the gas stove does not have a secondary air intake channel. Even with the ventilation hole opening at its maximum, it may not be able to provide sufficient primary air intake, leading to incomplete combustion of gas, increased harmful gases, and harm to the user's health. Utility Model Content

[0004] One of the technical problems solved by this utility model is to provide a damper adjustment mechanism, which is beneficial to increasing the primary air intake volume to solve the problem of insufficient primary air intake volume.

[0005] The above-mentioned technical problems are solved by the following technical solutions:

[0006] A damper regulating mechanism, comprising:

[0007] nozzle;

[0008] A damper plate, wherein the damper plate is provided with a first shaft hole and N first ventilation holes arranged around the first shaft hole, and the nozzle passes through the first shaft hole, wherein N is an integer greater than or equal to 1;

[0009] A first adjusting plate is provided on the first side of the damper plate. The first adjusting plate is provided with a second shaft hole and N second ventilation holes and N first shielding parts arranged around the second shaft hole. The nozzle passes through the second shaft hole.

[0010] The second adjusting plate is located on the second side of the damper plate or on the side of the first adjusting plate away from the damper plate. The second adjusting plate is provided with a third shaft hole and N third ventilation holes and N second shielding parts arranged around the third shaft hole. The nozzle passes through the third shaft hole.

[0011] The damper plate is fixed relative to the nozzle, the first adjusting plate and the second adjusting plate can rotate relative to the nozzle, and the first shielding part and the second shielding part are used to shield the first ventilation hole.

[0012] The damper adjustment mechanism described in this utility model has the following advantages compared with the prior art:

[0013] When the opening of the first ventilation hole is at its maximum and needs to be reduced, the first adjusting plate can be rotated relative to the damper plate to partially block the opening of the first ventilation hole. If the opening of the first ventilation hole meets the primary air intake requirement, the opening of the first ventilation hole can be adjusted without using the second adjusting plate. If the primary air intake provided by the damper adjustment mechanism is still too large when the first blocking area of ​​the first ventilation hole is at its maximum, the second adjusting plate can be rotated relative to the damper plate to partially block the remaining opening of the first ventilation hole that is not blocked by the first blocking part, until the opening of the first ventilation hole meets the primary air intake requirement.

[0014] The first and second shielding parts can shield different portions of the first ventilation hole, which helps to increase the central angle of the first ventilation hole. This allows the sum of the central angles of all the first ventilation holes to be designed to be greater than 180°. This ensures that when the damper adjustment mechanism is at its maximum opening, the first ventilation hole has a large primary air intake, promoting complete combustion of the gas, reducing the generation of harmful gases, and protecting user health. Furthermore, designing the sum of the central angles of all the first ventilation holes to be greater than 180° allows for a wider adjustment range of the ventilation area, making the adjustment of the ventilation area more flexible and improving applicability.

[0015] In one embodiment, the second adjusting plate is disposed on the side of the first adjusting plate away from the damper plate. One of the first adjusting plate and the second adjusting plate is provided with a first limiting protrusion, and the other is provided with a plurality of first slots spaced apart along the circumference of the nozzle. The first limiting protrusion can be selectively engaged with one of the first slots.

[0016] In one embodiment, the first adjusting plate includes a first plate body and a first lever radially protruding from the outer periphery of the first plate body, and the first plate body is provided with a second ventilation hole and a first limiting protrusion.

[0017] The second adjusting plate includes a second plate body and a second lever radially protruding from the outer periphery of the second plate body. The second plate body is provided with the third ventilation hole and the first slot.

[0018] In one embodiment, the damper plate is provided with a first stop portion. When the first lever and the second lever both abut against the first stop portion, the projections of the first blocking portion and the second blocking portion along the axial direction of the nozzle coincide with each other and the blocking area of ​​the first ventilation hole is minimized. The first limiting protrusion engages with the first slot at the end.

[0019] And / or, the damper plate is provided with a second stop portion. When the first limiting protrusion engages with the first slot at the head end, and the second lever abuts against the second stop portion, the first blocking portion and the second blocking portion cover the first ventilation hole to the maximum extent.

[0020] In one embodiment, along the radial direction of the nozzle, all of the first slots correspond to a second shield.

[0021] In one embodiment, one of the first adjusting plate and the damper plate is provided with a second limiting protrusion, and the other is provided with a plurality of second slots spaced apart circumferentially along the nozzle. The second slots and the first slots are spaced apart radially along the nozzle, and the second limiting protrusion can be selectively engaged with one of the second slots.

[0022] In one embodiment, the first adjusting plate includes a first plate body and a first lever disposed on the outer periphery of the first plate body. The first plate body is provided with a second ventilation hole, and the first lever is provided with a second limiting protrusion.

[0023] In one embodiment, the damper adjustment mechanism further includes an elastic element sleeved on the nozzle, the elastic element being configured to provide a force that presses the damper plate, the first adjustment plate, and the second adjustment plate together.

[0024] In one embodiment, the central angles of the first ventilation hole, the second ventilation hole, and the third ventilation hole are all set to α, and are 180°. <N·α≤240°。

[0025] In one embodiment, N≥2, N first ventilation holes are arranged at equal intervals around the first shaft hole, N second ventilation holes are arranged at equal intervals around the second shaft hole, and N third ventilation holes are arranged at equal intervals around the third shaft hole, and a first shielding portion is formed between two adjacent second ventilation holes, and a second shielding portion is formed between two adjacent third ventilation holes.

[0026] In one embodiment, N=2, and the central angles of the first ventilation hole, the second ventilation hole, and the third ventilation hole are all set to 120°.

[0027] In one embodiment, at least a portion of the first shielding portion is projected along the axial direction of the nozzle outside the first vent, and / or at least a portion of the second shielding portion is projected along the axial direction of the nozzle onto the first shielding portion.

[0028] The second technical problem solved by this utility model is to provide a gas stove that can help increase the primary air intake volume to solve the problem of insufficient primary air intake volume of the damper adjustment mechanism.

[0029] The above-mentioned technical problems are solved by the following technical solutions:

[0030] A gas stove includes a stove body and an air damper adjustment mechanism as described in any of the above claims, wherein the air damper adjustment mechanism is connected to the stove body.

[0031] The gas stove described in this utility model has the following advantages compared with the prior art:

[0032] The gas stove features an adjustable damper mechanism that allows for a wide range of adjustment in the primary air intake, enhancing its versatility. Furthermore, when the first vent is at its maximum opening, the stove receives a large volume of primary air intake, ensuring complete combustion of the gas, reducing the generation of harmful gases, and protecting user health. Attached Figure Description

[0033] Figure 1 A partial structural diagram of the damper adjustment mechanism provided by this utility model when the opening of the first ventilation hole is at its maximum. Figure 1 ;

[0034] Figure 2 A partial structural diagram of the damper adjustment mechanism provided by this utility model when the opening of the first ventilation hole is at its maximum. Figure 2 ;

[0035] Figure 3 A schematic diagram of the damper adjustment mechanism provided by this utility model;

[0036] Figure 4 A schematic diagram of the structure of the first adjusting plate provided by this utility model;

[0037] Figure 5 This is a schematic diagram of the structure of the second adjusting plate provided by this utility model;

[0038] Figure 6 A schematic diagram of the structure of the damper plate provided by this utility model;

[0039] Figure 7 A partial structural diagram of the damper adjustment mechanism provided by this utility model when the damper is half-open. Figure 1 ;

[0040] Figure 8 A partial structural diagram of the damper adjustment mechanism provided by this utility model when the damper is half-open. Figure 2 ;

[0041] Figure 9 A partial structural diagram of the damper adjustment mechanism provided by this utility model when the opening of the first ventilation hole is at its minimum. Figure 1 ;

[0042] Figure 10 A partial structural diagram of the damper adjustment mechanism provided by this utility model when the opening of the first ventilation hole is at its minimum. Figure 2 .

[0043] Label Explanation:

[0044] 100. Damper plate; 101. Fixing plate; 110. First shaft hole; 120. First ventilation hole; 130. First stop; 140. Second stop; 150. Second slot;

[0045] 200. First adjusting plate; 210. First plate body; 211. Second shaft hole; 212. Second ventilation hole; 213. First shielding part; 214. First limiting protrusion; 215. Opening groove; 220. First lever; 221. Second limiting protrusion;

[0046] 300. Second adjusting plate; 310. Second plate body; 311. Third shaft hole; 312. Third ventilation hole; 313. Second shielding part; 314. First slot; 320. Second lever;

[0047] 400. Nozzle;

[0048] 500, Valve seat; 510, Connecting pipe;

[0049] 600. Elastic components. Detailed Implementation

[0050] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0051] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0052] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0053] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0054] Reference Figures 1 to 10 As shown, this embodiment provides a damper adjustment mechanism, which includes a damper plate 100, a first adjustment plate 200, a second adjustment plate 300, and a nozzle 400. The damper plate 100, the first adjustment plate 200, and the second adjustment plate 300 are all fitted onto the nozzle 400.

[0055] The damper plate 100 has a first shaft hole 110 and N first ventilation holes 120 arranged around the first shaft hole 110, where N is an integer greater than or equal to 1. A first adjusting plate 200 is located on the first side of the damper plate 100, and has a second shaft hole 211 and N second ventilation holes 212 and N first shielding portions 213 arranged around the second shaft hole 211. A second adjusting plate 300 is located on the second side of the damper plate 100 or on the side of the first adjusting plate 200 away from the damper plate 100, and has a third shaft hole 311 and N third ventilation holes 312 and N second shielding portions 313 arranged around the third shaft hole 311. A nozzle 400 passes through the first shaft hole 110, the second shaft hole 211, and the third shaft hole 311.

[0056] It is understandable that the damper plate 100 is fixed relative to the nozzle 400, the first adjusting plate 200 and the second adjusting plate 300 can rotate relative to the nozzle 400, and the first blocking part 213 and the second blocking part 313 are used to block the first ventilation hole 120.

[0057] For example, the first ventilation hole 120, the second ventilation hole 212 and the third ventilation hole 312 correspond one-to-one.

[0058] For example, when the first ventilation hole 120, the second ventilation hole 212, and the third ventilation hole 312 coincide along the axial direction of the nozzle 400 and are interconnected, the opening of the first ventilation hole 120 is at its maximum. In other words, the opening of the first ventilation hole 120 is at its maximum when neither the first blocking part 213 nor the second blocking part 313 blocks it. It can be understood that when the opening of the first ventilation hole 120 is at its maximum, the ventilation area of ​​the first ventilation hole 120 is at its maximum, and the primary air intake volume is at its maximum.

[0059] For example, when the first blocking part 213 and the second blocking part 313 are misaligned and the blocking area of ​​the first ventilation hole 120 is maximized, the opening of the first ventilation hole 120 is minimized. In some embodiments, when the total blocking area of ​​the first blocking part 213 and the second blocking part 313 on the first ventilation hole 120 is maximized, the opening of the first ventilation hole can be zero. It is understood that when the opening of the first ventilation hole 120 is minimized, the ventilation area of ​​the first ventilation hole 120 is minimized, and the primary air intake volume is minimized.

[0060] When the opening of the first ventilation hole 120 is at its maximum and needs to be reduced, the first adjusting plate 200 can be rotated relative to the damper plate 100 to allow the first blocking part 213 to block part of the first ventilation hole 120. If the opening of the first ventilation hole 120 meets the primary air intake requirement, the opening of the first ventilation hole 120 can be adjusted without using the second adjusting plate 300. If the blocking area of ​​the first blocking part 213 on the first ventilation hole 120 is at its maximum, and the primary air intake provided by the damper adjustment mechanism is still too large, the second adjusting plate 300 can be rotated relative to the damper plate 100 to allow the second blocking part 313 to block the remaining part of the first ventilation hole 120 that is not blocked by the first blocking part 213, until the opening of the first ventilation hole 120 meets the primary air intake requirement.

[0061] It can be understood that the first shielding portion 213 and the second shielding portion 313 can shield different parts of the first ventilation holes 120, which is beneficial to increasing the central angle of the first ventilation holes 120, so that the sum of the central angles of all the first ventilation holes 120 can be designed to be greater than 180°, so that when the damper adjustment mechanism has the maximum opening degree of the first ventilation holes 120, the first ventilation holes 120 can have a relatively large primary air intake volume, so that gas can be fully combusted, the generation of harmful gases is reduced, and user health is ensured. Moreover, designing the sum of the central angles of all the first ventilation holes 120 to be greater than 180° allows the ventilation area of the first ventilation holes 120 to have a relatively large adjustment range, the adjustment of the ventilation area of the first ventilation holes 120 is more flexible, and the applicability is improved.

[0062] In some embodiments, the central angles of the first ventilation hole 120, the second ventilation hole 212 and the third ventilation hole 312 are all set as α, and 180°<N·α≤240°, which increases the primary air intake volume while enabling the damper plate 100, the first adjustment plate 200 and the second adjustment plate 300 to have good structural strength. Wherein, N·α is the sum of the central angles of all the first ventilation holes 120.

[0063] When N≥2, the N first ventilation holes 120 are arranged at equal intervals around the first shaft hole 110, the N second ventilation holes 212 are arranged at equal intervals around the second shaft hole 211, the N third ventilation holes 312 are arranged at equal intervals around the third shaft hole 311, the first shielding portion 213 is formed between two adjacent second ventilation holes 212, and the second shielding portion 313 is formed between two adjacent third ventilation holes 312. It can be understood that the first shielding portions 213, the second shielding portions 313 and the first ventilation holes 120 are in one-to-one correspondence, and the first shielding portions 213 and the second shielding portions 313 are configured to adjust the opening degree of the corresponding first ventilation holes 120, which facilitates the opening degree adjustment of the first ventilation holes 120.

[0064] In a feasible embodiment, N=2, and the central angles of the first ventilation hole 120, the second ventilation hole 212 and the third ventilation hole 312 are all set to 120°. It can be understood that the central angles of the first shielding portion 213 and the second shielding portion 313 are both set to 60°, which ensures that the ventilation area of the first ventilation holes 120 has a large adjustment range, and when the ventilation area of the first ventilation holes 120 is maximum, a large primary air intake volume is obtained, meanwhile, both the first shielding portion 213 and the second shielding portion 313 have relatively large dimensions, which is beneficial to improving the structural strength of the first adjustment plate 200 and the second adjustment plate 300.

[0065] For example, the first ventilation hole 120, the second ventilation hole 212 and the third ventilation hole 312 may be in the shape of a sector ring and have equal dimensions.

[0066] For example, the first blocking part 213 and the second blocking part 313 can be configured as a fan-shaped ring with equal size.

[0067] For example, the inner radii of the first shielding portion 213 and the second shielding portion 313 are both equal to the inner radius of the first ventilation hole 120, and the outer radii of the first shielding portion 213 and the second shielding portion 313 are both equal to the outer radius of the first ventilation hole 120.

[0068] It is understood that the damper adjustment mechanism also includes a valve seat 500, on which a connecting pipe 510 is provided, and a nozzle 400 is located at the end of the connecting pipe 510. The valve seat 500 is prior art and is not the focus of this application, so it will not be described in detail here.

[0069] In one feasible implementation, at least a portion of the projection of the first blocking portion 213 along the axial direction of the nozzle 400 is located outside the first ventilation hole 120, so that the first blocking portion 213 can form a good blocking effect on the first ventilation hole 120, which is beneficial to improving the stability of the primary air intake. Exemplarily, at least one of the two boundary lines of the first blocking portion 213 is projected along the axial direction of the nozzle 400 outside the first ventilation hole 120.

[0070] In one feasible implementation, at least a portion of the projection of the second blocking portion 313 along the axial direction of the nozzle 400 lies on the first blocking portion 213, so that there is no gap extending along the axial direction of the nozzle 400 between the first blocking portion 213 and the second blocking portion 313. This allows the first blocking portion 213 and the second blocking portion 313 to form a good blocking effect on the first ventilation hole 120, which is beneficial to improving the stability of the primary air intake. It is understood that the projection of one of the two boundary lines of the second blocking portion 313 along the axial direction of the nozzle 400 lies on the first blocking portion 213, or the two boundary lines of the first blocking portion 213 and the two boundary lines of the second blocking portion 313 correspond and coincide one-to-one.

[0071] In this embodiment, reference is made to Figure 3 As shown, the damper adjustment mechanism also includes an elastic element 600 sleeved on the nozzle 400. The elastic element 600 is configured to provide a force that tightly abuts the damper plate 100, the first adjustment plate 200, and the second adjustment plate 300, that is, the damper plate 100, the first adjustment plate 200, and the second adjustment plate 300 can be pressed together by the elastic element 600 so that the first shielding part 213 and the second shielding part 313 form a good shielding of the first ventilation hole 120.

[0072] For example, the elastic element 600 can be a spring.

[0073] In this embodiment, reference is made to Figure 4As shown, the first adjusting plate 200 may include a first plate body 210 and a first lever 220 radially protruding from the outer periphery of the first plate body 210. A second ventilation hole 212 is provided on the first plate body 210. It can be understood that the user can adjust the angle of the first plate body 210 through the first lever 220, thereby adjusting the opening of the first ventilation hole 120, which is convenient for operation.

[0074] In this embodiment, reference is made to Figure 5 As shown, the second adjusting plate 300 may include a second plate body 310 and a second lever 320 radially protruding from the outer periphery of the second plate body 310. A third ventilation hole 312 is provided on the second plate body 310. It can be understood that the user can adjust the angle of the second plate body 310 through the second lever 320, thereby adjusting the opening of the first ventilation hole 120, which is convenient for operation.

[0075] In some embodiments, such as Figure 4 and Figure 5 As shown, the second adjusting plate 300 is located on the side of the first adjusting plate 200 away from the damper plate 100. One of the first adjusting plate 200 and the second adjusting plate 300 has a first limiting protrusion 214, and the other has multiple first slots 314 spaced circumferentially along the nozzle 400. The first limiting protrusion 214 can selectively engage with one of the first slots 314. It can be understood that when the opening of the first ventilation hole 120 needs to be adjusted via the first adjusting plate 200, the first adjusting plate 200 can drive the second adjusting plate 300 to rotate together with it due to the engaging action of the first limiting protrusion 214 and the first slot 314.

[0076] For example, when the opening of the first ventilation hole 120 needs to be adjusted using the second adjusting plate 300, the user can first press the second lever 320 along the axial direction of the nozzle 400 to disengage the first limiting protrusion 214 from the current first slot 314, and then rotate the second plate body 310 to the target angle using the second lever 320 so that the first limiting protrusion 214 is aligned with the first slot 314 corresponding to the target angle. Finally, release the second lever 320, and under the action of the elastic member 600, the first limiting protrusion 214 is engaged in the first slot 314 corresponding to the target angle, and the second plate body 310 is in contact with the first plate body 210, which facilitates positioning the adjustment angle of the second adjusting plate 300.

[0077] For example, a first limiting protrusion 214 is provided on the first adjusting plate 200, and a first slot 314 is provided on the second adjusting plate 300. For instance, the first limiting protrusion 214 is provided on the first plate body 210, and the first slot 314 is provided on the periphery of the second plate body 310, which helps to improve the structural compactness of the first adjusting plate 200 and the second adjusting plate 300.

[0078] For example, the shape of the first limiting protrusion 214 includes, but is not limited to, a rectangular plate or an arc plate.

[0079] In one feasible implementation, such as Figure 5 As shown, along the radial direction of the nozzle 400, all the first slots 314 correspond to a second blocking part 313, which helps to improve the structural strength of the first adjusting plate 200 and reduce the structural size of the first adjusting plate 200.

[0080] For example, the shape of the first slot 314 can be set to U-shape.

[0081] In one feasible implementation, the first plate body 210 is provided with an opening groove 215, and the first limiting protrusion 214 can be formed by extending and bending the groove wall of the opening groove 215.

[0082] In some embodiments, such as Figure 1 , Figure 2 and Figure 6 As shown, the damper plate 100 is provided with a first stop portion 130. When both the first lever 220 and the second lever 320 abut against the first stop portion 130, the projections of the first blocking portion 213 and the second blocking portion 313 along the axial direction of the nozzle 400 coincide and the blocking area of ​​the first ventilation hole 120 is minimized. For example, the projections of the first blocking portion 213 and the second blocking portion 313 along the axial direction of the nozzle 400 are both located outside the first ventilation hole 120. When both the first lever 220 and the second lever 320 abut against the first stop portion 130, the first limiting protrusion 214 engages with the first slot 314 at its end. In this embodiment, when it is necessary to adjust the opening of the first ventilation hole 120 to its maximum, the first lever 220 and the second lever 320 can be quickly rotated to the angle abutting against the first stop portion 130. That is, the setting of the first stop portion 130 helps to shorten the time required to adjust the opening of the first ventilation hole 120 to its maximum.

[0083] For example, the first stop portion 130 may be formed by bending an extension of the periphery of the damper plate 100.

[0084] In some embodiments, such as Figures 6 to 10 As shown, the damper plate 100 is provided with a second stop portion 140. When the first limiting protrusion 214 engages with the first slot 314 at the head end, and the second lever 320 abuts against the second stop portion 140, the first blocking portion 213 and the second blocking portion 313 cover the first ventilation hole 120 to the maximum extent, and the opening of the first ventilation hole 120 is at its minimum. That is, the setting of the second stop portion 140 is beneficial to shorten the time to adjust the opening of the first ventilation hole 120 to the minimum.

[0085] For example, the second stop portion 140 may be formed by bending the periphery of the damper plate 100.

[0086] In some embodiments, such as Figure 1 and Figure 6 As shown, the damper plate 100 includes at least one fixed plate portion 101. Each fixed plate portion 101 is provided with a first shaft hole 110 and a first ventilation hole 120. The first adjusting plate 200, the second adjusting plate 300, the nozzle 400, and the fixed plate portion 101 are arranged in a one-to-one correspondence. It can be understood that the damper plate 100 can be divided into multiple models and types according to the number of fixed plates, thereby improving the applicability of the damper adjustment mechanism.

[0087] For example, two fixing plate portions 101 are arranged side by side, one of which is provided with a first stop portion 130 and the other is provided with a second stop portion 140.

[0088] In some embodiments, such as Figure 4 and Figure 6 As shown, one of the first adjusting plate 200 and the damper plate 100 is provided with a second limiting protrusion 221, and the other is provided with a plurality of second slots 150 spaced apart along the circumference of the nozzle 400. The second limiting protrusion 221 can be selected to engage with one of the second slots 150.

[0089] For example, when the opening of the first ventilation hole 120 needs to be adjusted using the first adjusting plate 200, the user can first press the first lever 220 along the axial direction of the nozzle 400 to disengage the second limiting protrusion 221 from the current second slot 150, and then rotate the first plate body 210 to the target angle using the first lever 220 so that the second limiting protrusion 221 is aligned with the second slot 150 corresponding to the target angle. Finally, the first lever 220 is released, and under the action of the elastic member 600, the second limiting protrusion 221 is engaged in the second slot 150 corresponding to the target angle, and the first plate body 210 is in contact with the damper plate 100, which facilitates the positioning of the adjustment angle of the first adjusting plate 200.

[0090] In one feasible implementation, the first slot 314 and the second slot 150 are arranged radially apart along the nozzle 400 to prevent the first limiting protrusion 214 and the second limiting protrusion 221 from interfering with each other in position, and to facilitate the forming of the first adjusting plate 200.

[0091] For example, a second limiting protrusion 221 is provided on the first adjusting plate 200, and a second slot 150 is provided on the periphery of the damper plate 100. For example, providing a second limiting protrusion 221 on the first lever 220 helps to improve the structural compactness of the first adjusting plate 200 and reduce the size of the first plate body 210. For example, the second limiting protrusion 221 is formed by extending and bending one side of the first lever 220.

[0092] For example, the shape of the second limiting protrusion 221 includes, but is not limited to, a rectangular plate or an arc plate.

[0093] For example, the shape of the second slot 150 can be set to U-shape.

[0094] In this embodiment, as shown Figure 1 and Figure 2 Taking the first ventilation hole 120 as an example, which has the largest opening and needs to be adjusted to its smallest opening, the specific adjustment process of the opening of the first ventilation hole 120 of the damper adjustment mechanism is as follows:

[0095] First, press the first lever 220 along the axial direction of the nozzle 400 to disengage the second limiting protrusion 221 from the second slot 150 at the beginning end; then rotate the first plate body 210 using the first lever 220 until the second limiting protrusion 221 is aligned with the second slot 150 at the end. During this process, the second adjusting plate 300 rotates at the same angle as the first adjusting plate 200; finally, release the second lever 320. Under the action of the elastic element 600, the second limiting protrusion 221 engages with the second slot 150 at the end, and the first plate body 210 is in contact with the damper plate 100. At this time, if... Figure 7 and Figure 8 As shown, the damper of the damper adjustment mechanism is half-open. The second slot 150 at the end faces the same direction as the first slot 314 at the end, and the second slot 150 at the beginning faces the same direction as the first slot 314 at the beginning.

[0096] 2. Press the second lever 320 along the axial direction of the nozzle 400 to disengage the first limiting protrusion 214 from the first slot 314 at the end; then rotate the second plate body 310 using the second lever 320 until the first limiting protrusion 214 is aligned with the first slot 314 at the beginning; finally, release the first lever 220, and under the action of the elastic element 600, the first limiting protrusion 214 engages with the first slot 314 at the beginning, and the second plate body 310 is in contact with the first plate body 210. At this time, as... Figure 9 and Figure 10 As shown, the opening of the first ventilation hole 120 of the damper adjustment mechanism is at its minimum.

[0097] This embodiment also provides a gas stove, which includes a stove body (not shown) and an air damper adjustment mechanism provided in any of the above embodiments, the air damper adjustment mechanism being connected to the stove body. The connection method between the air damper adjustment mechanism and the stove body can refer to existing technology, and is not the focus of this application, so it will not be elaborated further here.

[0098] In this embodiment, the gas stove, through the aforementioned damper adjustment mechanism, can achieve all the beneficial effects of the damper adjustment mechanism, enabling a large adjustment range for the primary air intake supplied to the stove body, thus improving its applicability; and when the opening of the first ventilation hole 120 is at its maximum, the stove body can obtain a large primary air intake supply, ensuring complete combustion of gas in the stove body, reducing the generation of harmful gases, and protecting the health of users.

[0099] In the specific implementation of the above embodiments, the technical features can be combined in any non-contradictory way. For the sake of brevity, not all possible combinations of the above technical features are described. However, as long as the combination of these technical features is not contradictory, it should be considered to be within the scope of this specification.

[0100] The specific embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A damper adjustment mechanism, characterized by, include: Nozzle (400); A damper plate (100) is provided with a first shaft hole (110) and N first ventilation holes (120) arranged around the first shaft hole (110). The nozzle (400) passes through the first shaft hole (110), where N is an integer greater than or equal to 1. A first adjusting plate (200) is provided on the first side of the damper plate (100). The first adjusting plate (200) is provided with a second shaft hole (211) and N second ventilation holes (212) and N first shielding parts (213) arranged around the second shaft hole (211). The nozzle (400) passes through the second shaft hole (211). The second adjusting plate (300) is provided on the second side of the damper plate (100) or on the side of the first adjusting plate (200) away from the damper plate (100). The second adjusting plate (300) is provided with a third shaft hole (311) and N third ventilation holes (312) and N second shielding parts (313) arranged around the third shaft hole (311). The nozzle (400) passes through the third shaft hole (311). The damper plate (100) is fixed relative to the nozzle (400), the first adjusting plate (200) and the second adjusting plate (300) can rotate relative to the nozzle (400), and the first shielding part (213) and the second shielding part (313) are used to shield the first ventilation hole (120).

2. The damper adjustment mechanism according to claim 1, characterized in that, The second adjusting plate (300) is located on the side of the first adjusting plate (200) away from the damper plate (100). One of the first adjusting plate (200) and the second adjusting plate (300) is provided with a first limiting protrusion (214), and the other is provided with a plurality of first slots (314) spaced apart along the circumference of the nozzle (400). The first limiting protrusion (214) can be selectively engaged with one of the first slots (314).

3. The damper adjustment mechanism according to claim 2, characterized in that, The first adjusting plate (200) includes a first plate body (210) and a first lever (220) radially protruding from the outer periphery of the first plate body (210). The first plate body (210) is provided with a second ventilation hole (212) and a first limiting protrusion (214). The second adjustment plate (300) includes a second plate body (310) and a second lever (320) radially protruding from the outer periphery of the second plate body (310). The second plate body (310) is provided with the third ventilation hole (312) and the first slot (314).

4. The damper adjustment mechanism according to claim 3, characterized in that, The damper plate (100) is provided with a first stop (130). When the first lever (220) and the second lever (320) both abut against the first stop (130), the projections of the first shielding part (213) and the second shielding part (313) along the axial direction of the nozzle (400) coincide with each other and the shielding area of ​​the first ventilation hole (120) is the smallest. The first limiting protrusion (214) is engaged with the first slot (314) at the end. And / or, the damper plate (100) is provided with a second stop (140). When the first limiting protrusion (214) engages with the first slot (314) at the first end, and the second lever (320) abuts against the second stop (140), the first blocking part (213) and the second blocking part (313) cover the first ventilation hole (120) to the maximum extent.

5. The damper adjustment mechanism according to claim 2, characterized in that, Along the radial direction of the nozzle (400), all of the first slots (314) correspond to a second shield (313).

6. The damper adjustment mechanism according to claim 2, characterized in that, One of the first adjusting plate (200) and the damper plate (100) is provided with a second limiting protrusion (221), and the other is provided with a plurality of second slots (150) spaced apart circumferentially along the nozzle (400). The second slots (150) and the first slots (314) are spaced apart radially along the nozzle (400). The second limiting protrusion (221) can be selectively engaged with one of the second slots (150).

7. The damper adjusting mechanism according to claim 6, characterized in that, The first adjustment plate (200) includes a first plate body (210) and a first lever (220) disposed on the outer periphery of the first plate body (210). The first plate body (210) is provided with a second ventilation hole (212), and the first lever (220) is provided with a second limiting protrusion (221).

8. The damper adjustment mechanism according to claim 1, characterized in that, The damper adjustment mechanism further includes an elastic element (600) sleeved on the nozzle (400), the elastic element (600) being configured to provide a force that causes the damper plate (100), the first adjustment plate (200) and the second adjustment plate (300) to press against each other.

9. The damper adjusting mechanism according to any one of claims 1-8, characterized in that, The central angles of the first ventilation hole (120), the second ventilation hole (212), and the third ventilation hole (312) are all set to α, and are 180°. <N·α≤240°。 10. The damper adjusting mechanism according to claim 9, characterized in that, N≥2, N first ventilation holes (120) are arranged at equal intervals around the first shaft hole (110), N second ventilation holes (212) are arranged at equal intervals around the second shaft hole (211), and N third ventilation holes (312) are arranged at equal intervals around the third shaft hole (311). A first shielding part (213) is formed between two adjacent second ventilation holes (212), and a second shielding part (313) is formed between two adjacent third ventilation holes (312).

11. The damper adjusting mechanism according to claim 10, characterized in that, N=2, and the central angles of the first ventilation hole (120), the second ventilation hole (212) and the third ventilation hole (312) are all set to 120°.

12. The damper adjusting mechanism according to any one of claims 1-8, characterized in that, The first shielding portion (213) is projected at least partially along the axial direction of the nozzle (400) outside the first vent (120), and / or the second shielding portion (313) is projected at least partially along the axial direction of the nozzle (400) onto the first shielding portion (213).

13. A gas stove, characterized in that, It includes a cooktop and a damper adjustment mechanism as described in any one of claims 1-12, wherein the damper adjustment mechanism is connected to the cooktop.

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