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CN113958978A - Knob structure and gas-cooker - Google Patents

Knob structure and gas-cooker Download PDF

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Publication number
CN113958978A
CN113958978A CN202010698481.3A CN202010698481A CN113958978A CN 113958978 A CN113958978 A CN 113958978A CN 202010698481 A CN202010698481 A CN 202010698481A CN 113958978 A CN113958978 A CN 113958978A
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CN
China
Prior art keywords
knob
hole
rotary encoder
valve
cap
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Granted
Application number
CN202010698481.3A
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Chinese (zh)
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CN113958978B (en
Inventor
杨成垒
陈雄
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Haier Intelligent Cooking Appliances Co Ltd
Haier Smart Home Co Ltd
Original Assignee
Qingdao Haier Intelligent Cooking Appliances Co Ltd
Haier Smart Home Co Ltd
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Application filed by Qingdao Haier Intelligent Cooking Appliances Co Ltd, Haier Smart Home Co Ltd filed Critical Qingdao Haier Intelligent Cooking Appliances Co Ltd
Priority to CN202010698481.3A priority Critical patent/CN113958978B/en
Publication of CN113958978A publication Critical patent/CN113958978A/en
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Publication of CN113958978B publication Critical patent/CN113958978B/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24CDOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C7/00Stoves or ranges heated by electric energy
    • F24C7/08Arrangement or mounting of control or safety devices
    • F24C7/082Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Feeding And Controlling Fuel (AREA)

Abstract

本发明公开了一种旋钮结构及燃气灶。该旋钮结构包括第一旋钮和第二旋钮,第一旋钮上设有检测第一旋钮的转动位移的检测装置,第二旋钮插入第一旋钮内、且贯穿第一旋钮,第二旋钮相对第一旋钮可转动。燃气灶上设有进气管,进气管上设若干出气口,部分出气口上设有机械阀,剩余出气口上设电控阀,燃气灶上还设有旋钮结构,控制板与电控阀连接,第二旋钮的旋杆与机械阀的阀杆连接。通过将第一旋钮与第二旋钮组合设置,实现对机械阀以及电控阀的独立控制,使得用户只需在燃气灶的同一个位置上操作旋钮结构即可实现对机械阀以及电控阀的独立控制,提升用户的体验。

Figure 202010698481

The invention discloses a knob structure and a gas stove. The knob structure includes a first knob and a second knob, the first knob is provided with a detection device for detecting the rotational displacement of the first knob, the second knob is inserted into the first knob and penetrates the first knob, and the second knob is opposite to the first knob. The knob can be turned. The gas stove is provided with an air intake pipe, a number of air outlets are arranged on the air inlet pipe, some air outlets are provided with mechanical valves, and the remaining air outlets are provided with electric control valves. , the rotary rod of the second knob is connected with the valve rod of the mechanical valve. By setting the first knob and the second knob in combination, the independent control of the mechanical valve and the electric control valve is realized, so that the user only needs to operate the knob structure at the same position of the gas stove to realize the control of the mechanical valve and the electric control valve. Independent control to enhance user experience.

Figure 202010698481

Description

Knob structure and gas-cooker
Technical Field
The invention belongs to the field of gas cookers, and particularly relates to a knob structure and a gas cooker.
Background
A gas stove or a kitchen or room with a working table and an embedded kitchen ware usually comprises a gas stove, wherein the gas stove is either arranged in the gas stove or embedded in the working table and is a kitchen ware heated by direct fire with gas fuels such as liquefied petroleum gas, artificial gas, natural gas and the like; the existing gas stove generally comprises a plurality of burners and an air inlet pipe, wherein a plurality of air outlets are arranged on the air inlet pipe, mechanical valves connected with the corresponding burners in series are arranged on part of the air outlets, electric control valves connected with the corresponding burners in series are arranged on the rest of the air outlets, each electric control valve is connected with a first knob for controlling the opening and closing of the electric control valve, each mechanical valve is connected with a second knob for controlling the opening and closing of the mechanical valve, an independent knob and a corresponding valve body are combined to independently control one or more burners, namely the first knob and the electric control valve are combined to independently control one or more burners, the second knob and the mechanical valve are combined to independently control one or more burners, the first knob and the second knob are separately arranged to independently control the corresponding valve bodies, and a user needs to respectively operate the first knob and the second knob at two positions of the gas stove during operation to realize the independent control of the mechanical valves and the electric control valves, the user experience is reduced.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects in the prior art, and provide a knob structure and a gas stove, so that a user can operate the knob structure at the same position of the gas stove to realize independent control of a mechanical valve and an electric control valve, and the purpose of improving the user experience is achieved.
In order to solve the problems, the invention adopts the technical scheme that:
the invention provides a knob structure, which comprises a first knob and a second knob, wherein the first knob is provided with a detection device for detecting the rotation displacement of the first knob, the second knob is inserted into the first knob and penetrates through the first knob, and the second knob can rotate relative to the first knob.
Furthermore, the cap screwing part of the second knob is axially inserted into the cap screwing part of the first knob, the rotating rod of the first knob is axially provided with a first through hole, the rotating rod of the second knob penetrates through the cap screwing part of the first knob and is inserted into the first through hole, and the detection device is arranged on the rotating rod of the first knob.
Furthermore, a groove is formed in the rotary cover of the first knob, a first annular protrusion is arranged at the bottom of the groove, a limiting groove is formed between the outer peripheral wall of the first annular protrusion and the inner peripheral wall of the groove, the rotary rod of the second knob penetrates through the rotary cover of the first knob through the annular protrusion, and the rotary cover part of the second knob is inserted into the limiting groove.
Further, detection device is including being cylindrical rotary encoder, and the swing arm cover of first knob is located and is the outside of cylindrical rotary encoder, and drives and be cylindrical rotary encoder and rotate, is cylindrical rotary encoder and is equipped with the second through-hole coaxial with first through-hole along the axial.
Furthermore, the inner peripheral wall of the rotary rod of the first knob is provided with a circle of second annular bulges which are coaxial with the first through hole, and the columnar rotary encoder part is inserted into the rotary rod of the first knob and is abutted against the second annular bulges.
Further, the knob structure also comprises a control board which is used for receiving the rotary displacement value detected by the rotary encoder and executing corresponding processing operation according to the rotary displacement value.
Furthermore, the control panel is located at one end of the rotary encoder which is far away from the rotary rod of the first knob and is in a cylindrical shape, and a third through hole which is coaxial with the second through hole is formed in the center of the control panel.
Further, the control panel outsourcing is equipped with the shell, and the shell bottom is equipped with the fourth through-hole coaxial with the third through-hole, is cylindrical rotary encoder insert in the shell with control panel rotatable coupling, forms between the inner wall of control panel and shell and carries out spacing space to being cylindrical rotary encoder, is cylindrical rotary encoder at spacing spatial rotation.
Furthermore, be equipped with the annular arch of round third on the periphery wall that is cylindrical rotary encoder, the annular arch of third is located between the inner wall of shell and the control panel.
Further, the radial dimensions of the second through hole, the third through hole and the fourth through hole are the same.
The invention also provides a gas stove, wherein the gas stove is provided with an air inlet pipe, the air inlet pipe is provided with a plurality of air outlets, part of the air outlets are provided with mechanical valves, the rest of the air outlets are provided with electric control valves, the gas stove is also provided with a knob structure provided by the technical scheme, the shell is arranged on the gas stove, the control panel is connected with the electric control valves, and the rotary rod of the second knob is connected with the valve rod of the mechanical valve.
After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects.
1. Through combining first knob and second knob setting, realize the independent control to mechanical valve and automatically controlled valve for the user only needs to operate the knob structure on the same position of gas-cooker and can realize the independent control to mechanical valve and automatically controlled valve, promotes user's experience.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 is a schematic structural view of a gas range provided by an embodiment of the present invention;
fig. 2 is a schematic structural view of a knob structure in a gas range provided by an embodiment of the invention;
FIG. 3 is a front view of a schematic diagram of a first knob in the knob structure provided by the embodiment of the invention;
FIG. 4 is a rear view of a schematic diagram of a first knob of the knob structure provided by an embodiment of the invention;
FIG. 5 is a schematic structural diagram of a second knob in the knob structure provided by the embodiment of the invention;
FIG. 6 is a schematic structural diagram of a housing in a knob structure according to an embodiment of the present invention;
fig. 7 is a cross-sectional view of a schematic structural diagram of a housing in a knob structure according to an embodiment of the present invention.
Icon: 1-a stove shell; 2-knob structure; 21-a first knob; 211 — a screw cap of the first knob; 212 — a lever of the first knob; 213-a groove; 214-a first annular projection; 215-a limit groove; 216-a second annular projection; 217-first via; 22-a second knob; 221-a screw cap of a second knob; 222-a turn bar of a second knob; 3, an air inlet pipe; 31-a mechanical valve; 311-valve stem of mechanical valve; 4-a detection device; 41-a cylindrical rotary encoder; 42-a third annular projection; 5-control panel; 6-a housing; 61-a spacing space; 7-a burner; 8-through holes.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Examples
As shown in fig. 1 and 2, the present invention provides a gas stove, wherein a gas inlet pipe 33 and a knob structure 2 are arranged on the gas stove, a mechanical valve 31 and an electric control valve are arranged on the gas inlet pipe 33, the knob structure 2 includes a first knob 21 and a second knob 22, the first knob 21 is provided with a detection device 4 for detecting the rotational displacement of the first knob 21, the detection device 4 is connected with the electric control valve, the second knob is inserted into the first knob 21 along the axial direction and connected with a valve rod 311 of the mechanical valve, and the second knob 22 can rotate relative to the first knob 21.
In the embodiment of the invention, the gas stove comprises a stove shell 1, an air inlet pipe 33, burners 7 and a knob structure 2 are arranged on the stove shell 1, a plurality of air outlets are arranged on the air inlet pipe 3, a mechanical valve 31 communicated with one or more burners 7 is arranged on part of the air outlets, an electric control valve communicated with one or more burners 7 is arranged on part of the air outlets, the knob structure 2 comprises a first knob 21 and a second knob 22 which are arranged on the stove shell 1, a detection device 4 for detecting the rotation displacement of the first knob 21 is arranged on the first knob 21, the detection device 4 is connected with the electric control valve, the detection device 4 rotates along with the first knob 21 and detects the rotation displacement of the first knob 21, the gas stove controls the electric control valve to be opened or closed through the signal of the rotation displacement to realize the ignition, the regulation of the vitality and the fire extinguishing corresponding to the burners 7, the second knob 22 is inserted into the first knob 21 along the axial direction and connected with a valve rod 311 of the mechanical valve, the second knob 22 can rotate relative to the first knob 21, namely the first knob 21 does not rotate when the second knob 22 rotates, the valve rod 311 driving the mechanical valve rotates, the mechanical valve 31 is controlled to be opened or closed, the adjustment and fire extinguishing of the ignition fire power of the corresponding combustor 7 are realized, the mechanical valve 31 and the electric control valve are independently controlled by combining the first knob 21 and the second knob 22, the corresponding combustor 7 is controlled, the user can independently control the mechanical valve 31 and the electric control valve only by operating the knob structure on the same position of the gas stove during operation, and the user experience is improved.
It should be noted that, for some gas stoves, the mechanical valve 31 is provided on the air outlet of the air inlet pipe 3, or the electric control valve is provided on the air outlet of the air inlet pipe 33, in order to expand the use range of the knob structure 2, the first knob 21 and the second knob 22 are both used for controlling the mechanical valve 31, and the first knob 21 and the second knob 22 are combined, or the first knob 21 and the second knob 22 are both used for controlling the electric control valve, and the first knob 21 and the second knob 22 are combined, and the detecting device 4 is provided thereon.
As shown in fig. 2 and 5, in the embodiment of the present invention, the cap 221 of the second knob is partially inserted into the cap 211 of the first knob, the rod 212 of the first knob is axially provided with a first through hole 217, the rod 222 of the second knob is inserted into the first through hole 217 through the cap 211 of the first knob, and the detecting device 4 is provided on the rod 212 of the first knob.
In an embodiment of the present invention, the first knob 21 includes a cap 211 of the first knob, and a lever 212 of the first knob axially disposed on the cap 211 of the first knob, and the second knob includes a cap 221 of the second knob, and a lever 222 of the second knob axially disposed on the cap 221 of the second knob, and the first knob 21 and the second knob 22 are combined as follows: the cover 221 of the second knob is partially inserted into the cover 211 of the first knob, because the rotating rod 212 of the first knob is axially provided with the first through hole 217, the rotating rod 222 of the second knob axially penetrates through the cover 221 of the second knob and is inserted into the first through hole 217, the rotating rod 222 of the second knob can be exposed out of the rotating rod 212 of the first knob or not exposed, if not, the valve rod 311 of the mechanical valve can be inserted into the rotating rod 212 of the first knob, and the cover 221 of the second knob is rotated to drive the rotating rod 222 of the second knob to rotate in the rotating rod 212 of the first knob, so as to drive the valve rod 311 of the mechanical valve to rotate, but the cover 211 of the first knob and the rotating rod 212 of the first knob do not rotate, so that the detection device 4 on the rotating rod 212 provided with the first knob does not rotate;
preferably, the cap 211 of the first knob, the lever 212 of the first knob, the cap 221 of the second knob, the lever 222 of the second knob, and the first through hole 217 are coaxial, so as to avoid affecting the state of the first knob when the second knob rotates;
the screw cap 221 of the second rotary knob is partially inserted into the screw cap 211 of the first rotary knob, that is, the screw cap 221 of the second rotary knob is partially exposed out of the screw cap 211 of the first rotary knob, so that the user can operate and rotate the screw cap 221 of the second rotary knob; an operation groove matched with fingers of a human body is formed in the rotary cover 221 of the second knob, and the fingers of a user are placed in the operation groove when the user operates the rotary cover, so that the user can apply force conveniently.
As shown in fig. 3, in the embodiment of the present invention, a groove is formed on the cap 211 of the first knob, a first annular protrusion 214 is disposed at the bottom of the groove, a limiting groove 215 is formed between the outer peripheral wall of the first annular protrusion 214 and the inner peripheral wall of the groove, the rotating rod 222 of the second knob penetrates through the cap 211 of the first knob through the annular protrusion, and the cap portion of the second knob is inserted into the limiting groove 215.
In the embodiment of the present invention, the way that the screw cap 221 of the second knob is partially inserted into the screw cap 211 of the first knob is as follows: a groove is formed in the rotary cover 211 of the first rotary knob, and the rotary cover 221 of the second rotary knob is inserted into the groove and can rotate in the groove relative to the rotary cover 211 of the first rotary knob; in order to further increase the inserting strength of the cap 221 of the second knob in the groove and ensure the combination strength between the cap 211 of the first knob and the cap 221 of the second knob, then, a circle of first annular protrusion 214 is arranged at the bottom of the groove, a limit groove 215 is formed between the outer peripheral wall of the first annular protrusion 214 and the inner peripheral wall of the groove, the cap 221 of the second knob is partially inserted into the limit groove 215, and the limit groove 215 has a limit effect on the cap 221 of the second knob, so that a user can relatively firmly rotate the second knob; the knob cover of the first knob is provided with a through hole at a position corresponding to the through hole of the first annular protrusion 214, and the rotating rod 222 of the second knob penetrates the knob cover of the first knob through the two through holes and is inserted into the first through hole 217, preferably, the first annular protrusion 214 and the first through hole 217 are coaxial.
As shown in fig. 6, in the embodiment of the present invention, the detecting device 4 includes a cylindrical rotary encoder 41, the rotating rod 212 of the first knob is sleeved outside the cylindrical rotary encoder 41 and drives the cylindrical rotary encoder 41 to rotate, and the cylindrical rotary encoder 41 is axially provided with a second through hole coaxial with the first through hole 217.
In the embodiment of the present invention, the detecting device 4 includes a cylindrical rotary encoder 41, the cylindrical rotary encoder 41 is inserted into the rotating rod 212 of the first knob through the first through hole 217, the insertion can enable the cylindrical rotary encoder 41 to rotate along with the rotating rod 212 of the first knob, the cylindrical rotary encoder 41 is provided with a second through hole coaxial with the first through hole 217, the valve rod 311 of the mechanical valve is connected with the rotating rod 222 of the second knob through the first through hole 217 and the second through hole, it should be noted that the connection manner between the valve rod 311 of the mechanical valve and the rotating rod 222 of the second knob is an insertion connection manner, the valve rod 311 of the mechanical valve can rotate along with the rotating rod 222 of the second knob, in addition, the rotating rod of the first knob can also be sleeved inside the cylindrical rotary encoder and drives the cylindrical rotary encoder to rotate, and the connection manner between the rotating rod of the first knob and the rotary encoder is only required to enable the rotating rod of the first knob to drive the rotary encoder to rotate.
The on-off of the burner controlled by the electric control valve is not influenced by the on-off of the burner controlled by the mechanical valve 31; for example, the first knob 21 is pressed and rotated counterclockwise, the first knob 21 rotates to drive the columnar rotary encoder 41 to rotate, so that the columnar rotary encoder 41 sends a rotation displacement signal to the control board 5, the control board 5 receives the signal and controls the electric control valve to open, and the ignition of at least one ring of gas passages is realized by matching with the pulse igniter; the first knob 21 is pressed and rotated clockwise, the first knob 21 rotates to drive the columnar rotary encoder 41 to rotate, the columnar rotary encoder 41 sends a rotation displacement signal to the control panel 5, and the control panel 5 controls the electric control valve to be closed, so that fire of at least one ring of gas passage is closed; after the ignition is successful, the first knob 21 is rotated, the first knob rotates to drive the columnar rotary encoder 41 to rotate, the columnar rotary encoder 41 sends a rotation displacement signal to the control panel 5, the control panel 5 controls the electric control valve to adjust the gas output so as to control the firepower of the burner 7, and the electric control valve is not shown in the figure; similarly, the second knob 22 is pressed and rotated to ignite or shut off the burner 7, and the mechanical valve 31 is adjusted to adjust the fire power of the burner 7.
As shown in fig. 4, in the embodiment of the present invention, a circle of second annular protrusions 216 coaxial with the second through hole is disposed on the inner peripheral wall of the rotating rod 212 of the first knob, and the columnar rotary encoder 41 is partially inserted into the rotating rod 212 of the first knob to abut against the second annular protrusions 216.
In the embodiment of the present invention, a circle of second annular protrusions 216 is disposed on the inner peripheral wall of the rotating rod 212 of the first knob, the second annular protrusions 216 are coaxial with the first through holes 217, the columnar rotary encoder 41 is inserted into the rotating rod 212 of the first knob, and is abutted against the second annular protrusions 216 in the rotating rod 212 of the first knob, the presence of the second annular protrusions 216 increases the contact area between the columnar rotary encoder 41 and the rotating rod 212 of the first knob, and improves the insertion strength between the columnar rotary encoder 41 and the rotating rod 212 of the first knob;
the second annular protrusion 216 is provided with a through hole, and the rotating rod 222 of the second knob penetrates through the rotating rod 212 of the first knob and then is inserted into the first through hole 217 through the through hole of the second annular protrusion 216.
As shown in fig. 7, in the embodiment of the present invention, the knob structure further includes a control board 5 for receiving the rotational displacement value detected by the cylindrical rotary encoder, and executing a corresponding processing operation according to the rotational displacement value, wherein the control board 5 is disposed on the gas stove and connected to the electric control valve.
In the embodiment of the present invention, the control board 5 is connected to the electric control valve and the columnar rotary encoder 41, respectively, the columnar rotary encoder 41 detects the rotational displacement of the first knob 21 and sends a rotational displacement signal to the control board 5, and the control board 5 receives the rotational displacement signal and controls the opening or closing of the electric control valve according to the rotational displacement signal.
Specifically, the control plate 5 is located at one end of the cylindrical rotary encoder 41 far away from the rotating rod 212 of the first knob, and a third through hole coaxial with the second through hole is formed in the center of the control plate 5; the center of the control plate 5 is provided with a third through hole which is coaxial with the second through hole, and a valve rod 311 of the mechanical valve is connected with the rotary rod 222 of the second knob through the third through hole, the second through hole and the first through hole 217.
As shown in fig. 6 and 7, in the embodiment of the present invention, the control plate 5 is externally wrapped with the housing 6, the bottom of the housing 6 is provided with a fourth through hole coaxial with the third through hole, the columnar rotary encoder 41 is inserted into the housing 6 and rotatably connected to the control plate 5, and a limit space 61 for clamping the columnar rotary encoder 41 is formed between the control plate 5 and the inner wall of the housing 6.
In the embodiment of the invention, the outer shell 6 is wrapped on the periphery of the control panel 5, and the outer shell 6 plays a role in protecting the control panel 5, so that the sensitivity of the control panel 5 is prevented from being reduced due to the external environment;
a fourth through hole is formed in the bottom of the shell and is coaxial with the third through hole, and a valve rod 311 of the mechanical valve is connected with a rotary rod 222 of the second knob through the fourth through hole, the third through hole and the second through hole and the first through hole 217;
the control board is arranged at the bottom of the shell, a limiting space 61 for limiting the columnar rotary encoder is formed between the control board and the inner wall of the shell, the columnar rotary encoder 41 rotates in the limiting space 61, the limiting space 61 limits the rotation of the columnar rotary encoder 41, and the inaccurate control of the electric control valve due to the deviation of the columnar rotary encoder 41 during the rotation is prevented;
the mode that the shell 6 is arranged on the gas stove is as follows: the shell 6 is fixed on the mechanical valve through fixing structures such as screws and can also be fixed on the back of a panel of the stove through the fixing structures; the mode that the control panel 5 is arranged on the shell 6 is as follows: the control panel 5 and the shell 6 are fixed on the inner wall of the shell by adopting structures such as screws and the like; the columnar rotary encoder 41 is rotatably connected with the control plate 5, and the control plate 5 does not rotate along with the rotation of the columnar rotary encoder 41;
specifically, a circle of third annular protrusions 42 is provided on the outer peripheral wall of the columnar rotary encoder 41, and the third annular protrusions 42 are clamped between the inner wall of the housing 6 and the control board 5; the inner wall of the housing above the control plate 5 is stepped, and a third annular protrusion 42 is sandwiched between the stepped inner wall of the housing and the control plate 5.
In the embodiment of the invention, the radial sizes of the second through hole, the third through hole and the fourth through hole are the same.
In the embodiment of the invention, the radial sizes of the second through hole, the third through hole and the fourth through hole are equal, so that the second through hole, the third through hole and the fourth through hole are communicated to form a through hole 8 with the radial size kept unchanged along the axial direction, and the through hole 8 realizes the connection between the valve rod 311 of the mechanical valve and the rotary rod of the second knob.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. A knob structure is characterized by comprising a first knob and a second knob, wherein a detection device for detecting the rotation displacement of the first knob is arranged on the first knob, the second knob is inserted into the first knob and penetrates through the first knob, and the second knob can rotate relative to the first knob.
2. The knob structure according to claim 1, wherein the cap portion of the second knob is axially inserted into the cap of the first knob, the shaft of the first knob is axially provided with a first through hole, the shaft of the second knob is inserted into the first through hole through the cap of the first knob, and the detecting device is provided on the shaft of the first knob.
3. The knob structure according to claim 2, wherein the cap of the first knob is formed with a recess, the bottom of the recess is formed with a first annular protrusion, a spacing recess is formed between an outer peripheral wall of the first annular protrusion and an inner peripheral wall of the recess, the rotating shaft of the second knob penetrates the cap of the first knob through the first annular protrusion, and the second rotating cap is partially inserted into the spacing recess.
4. The knob structure according to claim 2 or 3, wherein the detecting device comprises a cylindrical rotary encoder, the rotating rod of the first knob is sleeved outside the cylindrical rotary encoder and drives the cylindrical rotary encoder to rotate, and the cylindrical rotary encoder is axially provided with a second through hole coaxial with the first through hole.
5. The knob structure according to claim 4, wherein the inner peripheral wall of the rotating rod of the first knob is provided with a circle of second annular protrusions coaxial with the first through hole, and the columnar rotary encoder is partially inserted into the rotating rod of the first knob to abut against the second annular protrusions.
6. The knob structure according to claim 4, further comprising a control board for receiving the rotational displacement value detected by the rotary encoder in the shape of a cylinder and performing a corresponding processing operation according to the rotational displacement value.
7. The rotary knob structure according to claim 6, wherein the control plate is provided at an end of the rotary encoder having a cylindrical shape, which is remote from the rotary lever of the first rotary knob, and a third through hole is provided at a center of the control plate, which is coaxial with the second through hole.
8. The knob structure according to claim 7, wherein the control plate is surrounded by a housing, a fourth through hole coaxial with the third through hole is provided at the bottom of the housing, the columnar rotary encoder is inserted into the housing and rotatably connected to the control plate, and a spacing space for spacing the columnar rotary encoder is formed between the control plate and the inner wall of the housing;
preferably, the radial dimensions of the second through hole, the third through hole and the fourth through hole are the same.
9. The knob structure according to claim 8, wherein a ring of third annular protrusions is formed on an outer peripheral wall of the cylindrical rotary encoder, and the third annular protrusions are located between an inner wall of the housing and the control plate.
10. A gas range, there are air intakes on the gas range, there are several air outlets on the air intake, there are mechanical valves on some air outlets, set up the electric control valve on the remaining air outlet, characterized by that, also there are knob structures as in any claim 1-9 on the gas range, the outer casing is located on the gas range, the control panel is connected with electric control valve, the rotary lever of the second knob is connected with valve stem of the mechanical valve.
CN202010698481.3A 2020-07-20 2020-07-20 Knob structure and gas stove Active CN113958978B (en)

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Application Number Priority Date Filing Date Title
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CN113958978A true CN113958978A (en) 2022-01-21
CN113958978B CN113958978B (en) 2025-04-04

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Citations (8)

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CN209991498U (en) * 2019-03-11 2020-01-24 青岛海尔智慧厨房电器有限公司 Gas stove
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US5607611A (en) * 1993-12-31 1997-03-04 Samsung Electronics Co., Ltd. Operating switch of microwave oven and control circuit thereof
CN101825913A (en) * 2008-10-07 2010-09-08 Itt制造企业公司 Snap-on push button, rotary magnetic encoder knob assembly
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