Knob device and gas stove

Abstract

The utility model discloses a knob device and a gas stove, belongs to the technical field of stoves, and is designed for solving the problem that a circuit board is stressed to shift or shake when a timing knob is rotated. The knob device disclosed by the utility model comprises an encoder assembly which comprises a rotating part, a fixed part and a base, the fixed part is arranged on the base, and the rotating part can rotate relative to the fixed part; the plug valve comprises a valve body, and the base is fixedly connected to the valve body; and the timing knob is connected to the rotating part and can drive the rotating part to rotate relative to the fixed part. According to the knob device and the gas stove disclosed by the utility model, the base of the encoder assembly is fixedly connected to the valve body of the plug valve, and the valve body can provide stable support for the encoder assembly, so that the shaking of the fixed part and the base caused by the rotation of the timing knob is avoided, the stability of the overall structure of the encoder assembly is improved, and the measurement precision is high; timing operation is more convenient, and the timing knob does not affect normal use of the firepower adjusting knob.

Description

Technical Field

[0001] The utility model relates to the technical field of stoves, in particular to a knob device and a gas stove. Background Art

[0002] A gas stove is a kitchen appliance that uses natural gas or other flammable gases to generate heat for cooking. The gas stove is equipped with a switch knob, which can continuously burn natural gas or other flammable gases when the knob is turned on. If you forget to turn off the fire, it may cause dry burning in the cooker, which may burn the cooker in serious cases and even cause a fire accident.

[0003] Some existing gas stoves are provided with a connected timing knob and encoder. The parameters of the encoder can be changed by rotating the timing knob. The control device obtains the timing time according to the parameters of the encoder and automatically stops combustion after the timing ends, ensuring safe use.

[0004] The defects of the gas stove include: the encoder is connected to the circuit board, and the circuit board is fixedly connected to the valve body of the control valve. When the timing knob is rotated, force will be applied to the encoder, and this force will act on the circuit board, and the circuit board needs to be supported by the valve body of the control valve. Once there is an error in the connection structure between the encoder and the circuit board, and / or an error in the connection structure between the circuit board and the control valve body, the circuit board may shift or shake, affecting the accuracy of the encoder; in addition, the overall connection relationship is complex and the assembly efficiency is low. Utility Model Content

[0005] The utility model aims to provide a knob device and a gas stove, which solves the problem that a circuit board is subjected to force and thus shifts or shakes when a timing knob is rotated, and the encoder has higher precision.

[0006] To achieve this purpose, on the one hand, the utility model adopts the following technical solutions:

[0007] The knob device comprises: an encoder assembly, comprising a rotating part, a fixed part and a base, wherein the fixed part is arranged on the base, and the rotating part can rotate relative to the fixed part; a plug valve, comprising a valve body, and the base is fixedly connected to the valve body; and a timing knob connected to the rotating part, and the timing knob can drive the rotating part to rotate relative to the fixed part.

[0008] In one of the preferred embodiments, a supporting foot is provided on the base, and the supporting foot abuts against the valve body to leave a gap between the encoder assembly and the stopcock.

[0009] In one of the preferred embodiments, a connecting through hole for the connecting member to pass through is provided in the supporting foot, and an extending direction of the connecting through hole is consistent with an extending direction of the supporting foot.

[0010] In one of the preferred embodiments, the plug valve further comprises a valve stem, and a boss is further provided on the base, wherein a boss through hole is provided in the boss for the valve stem to pass through.

[0011] In one of the preferred embodiments, the rotating portion and the fixing portion are respectively sleeved on the outer circumference of the boss.

[0012] In one of the preferred embodiments, the encoder assembly further includes a PCB board, and the PCB board is fixedly connected to the fixing portion.

[0013] In one of the preferred embodiments, the encoder assembly further includes a cover plate that is buckled with the base, the base is provided with a base groove, the PCB board is arranged in the base groove, and the PCB board is at least partially located between the base and the cover plate.

[0014] In one of the preferred embodiments, the knob device also includes a firepower adjustment knob, the timing knob includes a cylindrical timing knob body and a timing knob bottom surface extending radially inward along the inner wall of the timing knob body, the firepower adjustment knob is inserted into the timing knob body, and a travel distance is left between the bottom end of the firepower adjustment knob and the bottom surface of the timing knob for the firepower adjustment knob to be pressed down.

[0015] In one of the preferred embodiments, a rotating block is provided on the timing knob, a rotating groove is provided on the rotating portion, and the rotating block is inserted into the rotating groove so that the timing knob and the rotating portion can rotate synchronously.

[0016] On the other hand, the utility model adopts the following technical solutions:

[0017] A gas stove comprises a stove panel and the above-mentioned knob device, wherein the stopcock and at least part of the encoder assembly are located below the stove panel, the timing knob is located above the stove panel, and the encoder assembly contacts the timing knob after passing through the stove panel.

[0018] The base of the encoder assembly of the knob device disclosed by the utility model is fixedly connected to the valve body of the plug valve. The valve body can provide stable support for the encoder assembly to avoid shaking of the fixed part and the base due to the rotation of the timing knob, thereby improving the stability of the overall structure of the encoder assembly and achieving high measurement accuracy.

[0019] The gas stove disclosed by the utility model comprises the above-mentioned knob device, and the timing operation is more convenient. The timing knob will not affect the normal use of the fire power adjustment knob, and the use experience is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1It is a partial cross-sectional view of a gas stove provided by a specific embodiment of the utility model;

[0021] Figure 2 It is a structural schematic diagram of a knob device provided in a specific embodiment of the utility model;

[0022] Figure 3 It is an exploded view of the knob device provided in a specific embodiment of the utility model;

[0023] Figure 4 It is a structural schematic diagram of an encoder assembly provided in a specific embodiment of the utility model;

[0024] Figure 5 It is an exploded view of an encoder assembly provided in a specific embodiment of the utility model;

[0025] Figure 6 It is a structural schematic diagram of a base provided by a specific embodiment of the utility model;

[0026] Figure 7 It is a structural schematic diagram of a plug valve provided in a specific embodiment of the utility model;

[0027] Figure 8 It is a structural schematic diagram of a timing knob provided in a specific implementation manner of the utility model.

[0028] In the figure:

[0029] 1. Encoder assembly; 2. Plug valve; 3. Timing knob; 4. Gap; 5. Fire power adjustment knob; 6. Cooker panel; 11. Rotating part; 12. Fixed part; 13. Base; 14. PCB board; 15. Cover plate; 21. Valve body; 22. Valve stem; 23. Ignition switch; 24. Gear adjustment device; 31. Timing knob body; 32. Timing knob bottom surface; 33. Rotating dial block; 111. Rotating groove; 131. Support foot; 132. Connecting through hole; 133. Boss; 134. Boss through hole; 135. Base groove; 136. Connector. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model. Therefore, the utility model is not limited by the specific implementation methods disclosed below.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0033] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0035] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0036] This embodiment discloses a knob device and a gas stove including the knob device. Figures 1 to 3 As shown, the gas stove further includes a stove panel 6; the knob device includes an encoder assembly 1, a plug valve 2, a timing knob 3 and a fire power adjustment knob 5, the plug valve 2 and at least part of the encoder assembly 1 are located below the stove panel 6, the timing knob 3 is located above the stove panel 6, and the encoder assembly 1 and the timing knob 3 are both located between the plug valve 2 and the timing knob 3. A through hole (not shown) is provided on the stove panel 6, and the top end of the encoder assembly 1 contacts the timing knob 3 after passing through the stove panel 6.

[0037] like Figure 4 and Figure 5 As shown, the encoder assembly 1 includes a rotating part 11, a fixed part 12, a base 13 and a PCB board 14. The fixed part 12 is arranged on the base 13, the rotating part 11 can rotate relative to the fixed part 12, and the PCB board 14 is fixedly connected to the fixed part 12 by welding or the like. Figure 1 and Figure 5 As shown, the timing knob 3 is connected to the rotating part 11 , and the timing knob 3 can drive the rotating part 11 to rotate relative to the fixed part 12 .

[0038] like Figure 1 and Figure 7 As shown, the plug valve 2 includes a valve body 21 and a valve stem 22, and the valve stem 22 can rotate relative to the valve body 21. The top end of the valve stem 22 passes through the stove panel 6 from bottom to top, and the fire power adjustment knob 5 is installed on the top end of the valve stem 22.

[0039] The fixed part 12 is fixedly connected to the base 13 or the fixed part 12 and the base 13 are integrally formed, and the base 13 of the encoder assembly 1 is fixedly connected to the valve body 21. When the user rotates the timing knob 3, the rotating part 11 rotates synchronously with the timing knob 3, and the force on the rotating part 11 is transmitted to the fixed part 12 and the base 13. The valve body 21 provides stable support for the fixed part 12 and the base 13, avoiding the shaking of the fixed part 12 and the base 13 due to the rotation of the timing knob 3, thereby improving the stability of the overall structure of the encoder assembly 1 and achieving high precision.

[0040] The method of using the knob device is as follows: press down and rotate the fire power adjustment knob 5 counterclockwise, the fire power adjustment knob 5 turns on the ignition switch 23 through the valve stem 22, the plug valve 2 and the solenoid valve (not shown) are opened at the same time, and the gas stove is ignited successfully. Rotate the timing knob 3, the timing knob 3 drives the rotating part 11 to rotate synchronously, the PCB board 14 outputs different position signals to the control device of the gas stove, the control device converts the timing program according to the position signal, and displays the specific time of the timing on the display board, completing the timing operation.

[0041] The timing operation obtains different time values ​​in the control device through different rotation angles of the timing knob 3. After the timing operation is completed, the control device starts countdown. When the countdown reaches zero, it is determined that the time preset by the user has been reached, and the gas stove needs to be turned off and the combustion stopped. The specific method for the control device to stop the combustion is not limited, and any method in the prior art that can automatically stop the combustion of the gas stove is available. For example, the control device controls the plug valve 2 and the solenoid valve to automatically close, thereby interrupting the gas supply and stopping the combustion.

[0042] In this embodiment, the control device can be a centralized or distributed controller. For example, the controller can be a single single-chip microcomputer or a distributed plurality of single-chip microcomputers. The control program can be run in the single-chip microcomputer to control the stopcock 2 and the solenoid valve to realize their functions.

[0043] The specific structure of the base 13 and the valve body 21 is not limited, as long as the encoder assembly 1 and the plug valve 2 can be stably connected. Figure 2 , Figure 3 and Figure 6 As shown, a support foot 131 is provided on the base 13. The support foot 131 has a certain height. When installed, the support foot 131 abuts against the valve body 21, and a gap 4 can be formed between the bottom surface of the encoder assembly 1 and the top surface of the plug valve 2. Figure 2 and Figure 7 As shown, the gap 4 is mainly used to leave installation space for the ignition switch 23 and the gear adjustment device 24 to avoid malfunction of the ignition switch 23 and the gear adjustment device 24 due to collision with the encoder assembly 1, thereby improving safety in use.

[0044] The specific number of the support legs 131 provided on the base 13 is not limited and can be specifically provided according to the area and shape of the base 13. In this embodiment, four support legs 131 are provided on the base 13, and the four support legs 131 are substantially symmetrically provided relative to the center of the base 13, so that the force is more evenly applied.

[0045] The specific connection method between the support foot 131 and the valve body 21 is not limited. In this embodiment, a connecting through hole 132 is opened in the support foot 131, and the extension direction of the connecting through hole 132 is consistent with the extension direction of the support foot 131. The connecting member 136 passes through the connecting through hole 132 from top to bottom, and then passes through the connecting hole (not shown) on the valve body 21 to achieve the connection between the support foot 131 and the valve body 21.

[0046] On the basis of the above structure, the encoder assembly 1 further includes a cover plate 15 that is buckled with the base 13. A base groove 135 is provided on the base 13, and the PCB board 14 is arranged in the base groove 135. The PCB board 14 is at least partially located between the base 13 and the cover plate 15. After assembly, the position of the PCB board 14 is more stable and the failure rate is low.

[0047] The specific shape of the cover plate 15 is not limited, as long as it can be buckled on the base 13 and can stably press the PCB board 14. In order to leave installation space for the thicker protrusion (not shown) on the PCB board 14, an avoidance notch (not shown) is opened on the cover plate 15. Similarly, a protrusion (not shown) is formed on the outer surface of the rotating part 11, and a notch (not shown) or a hole (not shown) with an avoidance function is opened on the cover plate 15. The overall structure is more reasonable, the space utilization rate is improved, and it is conducive to the miniaturization design of the knob device.

[0048] On the basis of the above structure, a boss 133 is provided at the central position of the base 13. A boss through hole 134 is provided in the boss 133 for the valve stem 22 to pass through. The valve stem 22 and the boss through hole 134 are matched with each other in a clearance manner, and the up and down movement of the valve stem 22 is not affected. The boss through hole 134 can guide and limit the valve stem 22, so that the valve stem 22 does not have space to swing significantly in the radial direction, improve the situation where the valve stem 22 shakes a lot, and improve the refinement of the product; accordingly, the radial shaking of the firepower adjustment knob 5 can be reduced, and the user experience is better.

[0049] The rotating part 11 and the fixing part 12 are both cylindrical and are respectively sleeved on the outer circumference of the boss 133. The boss 133 can also guide and limit the rotating part 11 and the fixing part 12, preventing the rotating part 11 and the fixing part 12 from moving in the radial direction.

[0050] like Figure 8 As shown, the timing knob 3 includes a timing knob body 31 and a timing knob bottom surface 32. The timing knob body 31 is cylindrical, and the annular timing knob bottom surface 32 extends radially inward along the inner wall of the timing knob body 31. Figure 1 and Figure 8As shown, after installation, the bottom end of the fire power adjustment knob 5 is inserted into the cylinder of the timing knob body 31. When the fire power adjustment knob 5 moves up and down, the timing knob body 31 can guide the fire power adjustment knob 5 to prevent the fire power adjustment knob 5 from moving radially or swinging greatly. The outer diameter of the fire power adjustment knob 5 and the inner diameter of the knob body 31 are clearance-matched, and the resistance of the fire power adjustment knob 5 to press down the ignition operation is small, which is more labor-saving to use.

[0051] The bottom end of the power adjustment knob 5 is not in close contact with the bottom surface 32 of the timing knob, but a gap (not shown) is left. Along the moving direction of the power adjustment knob 5, the value of the gap is greater than the travel distance of the power adjustment knob 5 when it is pressed down for ignition, so as to avoid affecting the ignition of the gas stove and the opening of the valve for gas discharge, making the ignition operation more labor-saving and providing a good user experience.

[0052] On the basis of the above structure, a rotating block 33 is provided on the timing knob 3, and a rotating groove 111 is provided on the rotating part 11. The rotating block 33 is inserted into the rotating groove 111, so that the timing knob 3 and the rotating part 11 can rotate synchronously. The rotating block 33 is preferably provided on the inner wall surface of the annular timing knob bottom surface 32, and the rotating block 33 extends toward the center of the timing knob 3.

[0053] The specific shape of the rotating groove 111 is not limited. In this embodiment, the rotating groove 111 is a groove structure with an upper end open and a bottom end closed. The bottom end of the rotating groove 111 can prevent the timing knob 3 from being too low after installation, thereby preventing the timing knob 3 from abutting against the cooker panel 6 (such as Figure 1 As shown in the figure, the timing knob 3 is prevented from contacting with the cooker panel 6 to cause friction between the two, and rotating the timing knob 3 is more labor-saving and has a good user experience.

[0054] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, but may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A knob device, characterized in that: include: An encoder assembly (1) comprises a rotating part (11), a fixed part (12) and a base (13), wherein the fixed part (12) is arranged on the base (13), and the rotating part (11) is rotatable relative to the fixed part (12); A plug valve (2) comprising a valve body (21), the base (13) being fixedly connected to the valve body (21); and A timing knob (3) is connected to the rotating part (11), and the timing knob (3) can drive the rotating part (11) to rotate relative to the fixed part (12).

2. The knob device according to claim 1, characterized in that: The base (13) is provided with a supporting foot (131), and the supporting foot (131) abuts against the valve body (21) so that a gap (4) is left between the encoder assembly (1) and the plug valve (2).

3. The knob device according to claim 2, characterized in that: A connecting through hole (132) for the connecting member (136) to pass through is provided in the supporting foot (131), and the extending direction of the connecting through hole (132) is consistent with the extending direction of the supporting foot (131).

4. The knob device according to claim 1, characterized in that: The plug valve (2) further comprises a valve stem (22), and a boss (133) is further provided on the base (13), wherein a boss through hole (134) is provided in the boss (133) for the valve stem (22) to pass through.

5. The knob device according to claim 4, characterized in that: The rotating portion (11) and the fixing portion (12) are respectively sleeved on the outer circumference of the boss (133).

6. The knob device according to claim 1, characterized in that: The encoder assembly (1) further comprises a PCB board (14), wherein the PCB board (14) is fixedly connected to the fixing portion (12).

7. The knob device according to claim 6, characterized in that: The encoder assembly (1) further comprises a cover plate (15) which is buckled with the base (13); a base groove (135) is provided on the base (13); the PCB board (14) is arranged in the base groove (135); and the PCB board (14) is at least partially located between the base (13) and the cover plate (15).

8. The knob device according to any one of claims 1 to 7, characterized in that: The knob device further comprises a power regulating knob (5); the timing knob (3) comprises a cylindrical timing knob body (31) and a timing knob bottom surface (32) extending radially inwardly along the inner wall of the timing knob body (31); the power regulating knob (5) is inserted into the timing knob body (31); and a travel distance for the power regulating knob (5) to be pressed downward is reserved between the bottom end of the power regulating knob (5) and the timing knob bottom surface (32).

9. The knob device according to any one of claims 1 to 7, characterized in that: The timing knob (3) is provided with a rotating block (33), the rotating portion (11) is provided with a rotating groove (111), and the rotating block (33) is inserted into the rotating groove (111) so that the timing knob (3) and the rotating portion (11) can rotate synchronously.

10. A gas stove, comprising a stove panel (6), characterized in that: It also comprises a knob device as claimed in any one of claims 1 to 9, wherein the stopcock (2) and at least part of the encoder assembly (1) are located below the stove panel (6), the timing knob (3) is located above the stove panel (6), and the encoder assembly (1) contacts the timing knob (3) after passing through the stove panel (6).

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