Knob devices and household appliances

Abstract

The present invention provides a knob device and household appliance. The knob device comprises: a knob, the knob is provided with a mounting cavity, and a plurality of guide ribs are provided on the groove wall of the mounting cavity; a driving member, a part of the driving member is located in the mounting cavity, a plurality of guide ribs are arranged at intervals along the circumference of the driving member, and the part of the driving member located in the mounting cavity comprises a plurality of first slide grooves; the knob can move along the first slide groove to switch between an extended position and a retracted position relative to the driving member; wherein, when the knob is in the retracted position, the guide rib is limited to the end of the first slide groove, and when the knob is in the extended position, each guide rib can slide into a first slide groove. The present invention can guide the knob in multiple directions and multiple angles by reasonably setting the structure of the knob device and increasing the matching area and matching angle of the knob and the driving member. Therefore, the situation that the knob is tilted relative to the driving member can be avoided, and the matching size of the knob and the driving member can be guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of knob devices, and in particular to a knob device and a household appliance. Background Art

[0002] In the related art, household appliances include knob devices. If the knob devices are not properly set, the knobs of the knob devices are prone to eccentricity. The eccentric knobs may scratch the peripheral structures of the household appliances, thus affecting the performance of the products. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0004] To this end, a first aspect of the present invention provides a knob device.

[0005] A second aspect of the present invention provides a household appliance.

[0006] In view of this, the first aspect of the present invention proposes a knob device, comprising: a knob, the knob is provided with an installation cavity, and a plurality of guide ribs are provided on the groove wall of the installation cavity; a driving member, a part of the driving member is located in the installation cavity, and the plurality of guide ribs are arranged at intervals along the circumference of the driving member, and the part of the driving member located in the installation cavity includes a plurality of first sliding grooves; the knob can move along the first sliding grooves to switch between an extended position and a retracted position relative to the driving member; wherein, when the knob is in the retracted position, the guide ribs are limited to the ends of the first sliding grooves, and when the knob is in the extended position, each guide rib can slide into a first sliding groove.

[0007] The present invention provides a knob device comprising a knob and a driving member.

[0008] The knob device is used for household electrical appliances. The household electrical appliances include an appliance body, a controller and a switch. The controller and the switch are electrically connected, and the switch is connected to a driving member of the knob device. The appliance body is provided with an opening.

[0009] Specifically, when the home appliance is controlled by the knob device, the knob is pressed to move the knob to the extended position. When the knob is in the extended position, the knob can extend out of the outer surface of the device body through the opening. At this time, the home appliance can be controlled by rotating the knob.

[0010] Specifically, when there is no need for a knob device to control the operation of the household appliance, pressing the knob again causes the knob to move to the retracted position. When the knob is in the retracted position, the knob can be retracted into the device body. The connection between the knob and the device body has a smooth transition, which can ensure the beauty and smoothness of the product appearance.

[0011] This arrangement enables the knob device to retract into the device body when the home appliance is not controlled by the knob device, thereby protecting the knob device and avoiding scratches on the knob, which is beneficial to increasing the service life of the product.

[0012] It is understandable that a plurality of guide ribs are arranged at intervals along the circumference of the driving member, and when the knob is in the extended position, each guide rib can slide into a first slide groove. There are multiple guide ribs and first slide grooves, and each guide rib cooperates with a first slide groove. This arrangement increases the matching area and matching angle of the knob and the driving member, and can guide the knob in multiple directions and multiple angles. Therefore, it is possible to avoid the situation where the knob tilts relative to the driving member, and the matching size of the knob and the driving member can be guaranteed. In this way, when the working parameters of the household appliance are adjusted using the knob, the knob will not rub against the peripheral structure of the device body, and the knob rotation will not get stuck, which can ensure the stability and reliability of the product use and help improve the product performance.

[0013] In addition, when the knob is in the extended position, multiple guide ribs and multiple first sliding grooves cooperate to limit the knob along the circumference of the knob device, that is, the knob cannot rotate relative to the driving member, the knob and the driving member are connected as a whole, the knob can drive the driving member to rotate, and the rotation of the driving member can trigger the switch connected to the driving member.

[0014] It can be understood that when the knob switches from the extended position to the retracted position, the first slide groove and the guide rib cooperate with each other to limit the movement path of the knob relative to the driving member along the axial direction of the knob device, so that the guide rib slides out of the first slide groove and is limited at the end of the first slide groove, thereby limiting the knob in the retracted position.

[0015] Specifically, a limiting portion is provided at the end of the first slide slot, and the knob can move along the first slide slot. When the knob moves to the end of the first slide slot, the knob abuts against the limiting portion at the end of the first slide slot, thereby limiting the knob in the retracted position.

[0016] The knob device according to the present invention may also have the following additional technical features:

[0017] In the above technical solution, further, the portion of the driving member located in the installation cavity also includes a plurality of protrusions, the plurality of protrusions are arranged at intervals around the rotation axis of the knob, and a first sliding groove is enclosed between any two adjacent protrusions.

[0018] In this technical solution, the portion of the driving member located in the installation cavity further includes a plurality of protrusions, which are arranged at intervals around the rotation axis of the knob. Specifically, any two adjacent protrusions enclose a first slide groove, that is, the first slide groove is defined by two adjacent protrusions.

[0019] In this way, when the knob is in the retracted position, the guide ribs of the knob are limited at the ends of the protrusions, and when the knob is in the extended position, each guide rib can bypass the protrusions and slide into a first sliding groove.

[0020] The plurality of protrusions function as guide ribs for limiting the knob in the retracted position, so that the knob is limited in the retracted position. The first slide groove formed between any two adjacent protrusions functions as a guide rib for limiting the knob in the extended position, so as to limit the axial movement path of the knob device, and provide structural support for the knob to drive the driving member to rotate.

[0021] In any of the above technical solutions, further, the driving member also includes: a knob shaft, a part of which is located in the installation cavity, the knob shaft includes a plurality of stop portions and a first inclined surface, and a second slide groove is enclosed between any two adjacent stop portions; a rotor, which is located in the installation cavity, and is slidingly connected to the knob shaft, and the rotor includes a plurality of protrusions and a second inclined surface, and the first slide groove is connected to the second slide groove; wherein the first inclined surface can abut against the second inclined surface to switch the matching position of the rotor and the guide rib.

[0022] In this technical solution, the driving member further includes a knob shaft and a rotor, a portion of the knob shaft is located in the installation cavity, the portion of the knob shaft located in the installation cavity includes a first inclined surface, the rotor is located in the installation cavity, the rotor includes a plurality of protrusions and a second inclined surface, and the portion of the knob shaft located outside the installation cavity is connected to a switch of the household appliance.

[0023] The matching position of the rotor and the guide rib can be switched by pressing the knob. The user presses the knob so that the guide rib is limited to the end of the protrusion of the rotor, or the guide rib bypasses the protrusion and slides into the first slide groove formed by two adjacent protrusions.

[0024] Specifically, the knob shaft includes a first inclined surface, and the rotor includes a second inclined surface. The first inclined surface of the knob shaft can contact the second inclined surface of the rotor. When the external force acts on the knob for the first time, the knob moves along the first slide groove, and when the knob moves to the end of the first slide groove, the second inclined surface cooperates with the first inclined surface to drive the rotor to rotate, so that the guide rib abuts against the end of the first slide groove, and the knob is limited in the retracted position. When the external force acts on the knob for the second time, the second inclined surface cooperates with the first inclined surface to drive the rotor to rotate again, the guide rib passes over the end of the first slide groove and slides into the first slide groove, and the knob switches from the retracted position to the extended position.

[0025] That is, the first inclined surface, the second inclined surface and the protrusion cooperate with each other to drive the rotor to rotate, and the rotation of the rotor can switch the cooperation position of the guide rib and the protrusion.

[0026] In addition, the knob shaft includes a plurality of stoppers, and a second slide groove is enclosed between any two adjacent stoppers, and the first slide groove is connected to the second slide groove, and the guide rib is slidably connected to the first slide groove and the second slide groove. When the knob is in the extended position, the plurality of guide ribs cooperate with the plurality of first slide grooves and the plurality of second slide grooves to limit the knob along the circumference of the knob device, that is, the knob cannot rotate relative to the knob shaft and the rotor, the knob, the knob shaft and the rotor are connected as a whole, the knob can drive the knob shaft and the rotor to rotate, and the rotation of the knob shaft can trigger the switch connected to the driving member.

[0027] It can be understood that the stopper cooperates with the protrusion of the rotor, and the stopper has the function of limiting the rotor along the axial direction of the knob device.

[0028] In any of the above technical solutions, further, the knob shaft also includes a recessed groove, and a plurality of stoppers are located on the circumferential side of the recessed groove; a portion of the rotor extends into the recessed groove and can slide relative to the recessed groove; wherein each stopper is arranged corresponding to a protrusion.

[0029] In this technical solution, by reasonably setting the matching structure of the knob shaft and the rotor, the knob shaft also includes a sunken groove, a part of the rotor extends into the sunken groove and can slide relative to the sunken groove, and the sunken groove cooperates with the rotor to limit the rotor along the axial and radial directions of the knob device to ensure the movement path of the rotor relative to the knob shaft. This setting can ensure that the rotor can rotate relative to the knob shaft and ensure the matching size of the rotor and the knob shaft, providing a stable and reliable structural support for the knob to effectively control the operation of the household appliance.

[0030] Furthermore, a plurality of stoppers of the knob shaft are located on the peripheral side of the sink groove, and each stopper is arranged corresponding to a protrusion. That is, the stopper cooperates with the protrusion of the rotor, and the stopper has the function of limiting the rotor along the axial direction of the knob device. Moreover, this arrangement increases the matching area and matching angle between the knob shaft and the rotor, can limit the rotor in multiple directions and multiple angles, can ensure the movement path of the rotor, can avoid the situation where the rotor tilts relative to the knob shaft, and can ensure the matching size of the knob and the driving member. In this way, when the working parameters of the household appliance are adjusted by using the knob, the knob will not rub against the peripheral structure of the device body, and the knob rotation will not get stuck, which can ensure the stability and reliability of the product use and help improve the product performance.

[0031] In any of the above technical solutions, further, the groove wall of the installation cavity includes a stop wall, and the stop wall is used to limit the extension length of the driving member relative to the knob.

[0032] In this technical solution, by reasonably setting the structure of the knob, the groove wall of the knob installation cavity includes a stop wall, and the stop wall is used to limit the extension length of the driving member relative to the knob. In this way, when the knob is in the extended position, the extension length of the knob relative to the device body can be guaranteed, and the situation that the knob is separated from the driving member can be avoided, providing reliable structural support for the effective operation of the knob device.

[0033] In any of the above technical solutions, further, the knob device also includes: a first elastic part, located on the circumferential side of the knob shaft, the first end of the first elastic part is arranged corresponding to the stop wall, and the second end of the first elastic part is arranged corresponding to the stop part.

[0034] In this technical solution, the knob device also includes a first elastic part, and defines a matching structure of the first elastic part, the knob and the driving member. Specifically, the first elastic part is located on the circumferential side of the knob shaft, the first end of the first elastic part is arranged corresponding to the stop wall, and the second end of the first elastic part is arranged corresponding to the stop part.

[0035] It can be understood that when the knob is in the retracted position, the distance between the stop wall and the stop portion along the axial direction of the knob device decreases, and the first elastic portion is compressed; when the knob is in the extended position, the distance between the stop wall and the stop portion along the axial direction of the knob device increases, and the first elastic portion is reset. The first elastic portion has the function of driving the driver to reset, so as to ensure the matching size of the knob and the driver.

[0036] Specifically, the first elastic part includes a spring or a torsion spring.

[0037] In any of the above technical solutions, further, a portion of the outer peripheral wall of the knob shaft is recessed to form a limiting area, and at least a portion of the limiting area extends out of the installation cavity.

[0038] In this technical solution, by reasonably setting the structure of the knob shaft, a part of the outer peripheral wall of the knob shaft is recessed to form a limiting area, at least a part of the limiting area extends out of the mounting cavity, the knob shaft is connected to other components of the household appliance, and the limiting area has the purpose of limiting the rotation of the knob shaft relative to other components along the circumference of the knob device, thereby meeting the use requirements of the knob shaft to drive other components to work.

[0039] In any of the above technical solutions, further, the knob device also includes: a second elastic part, located in the installation cavity, a first end of the second elastic part is connected to the groove wall of the installation cavity, and a second end of the second elastic part is connected to the driving member.

[0040] In this technical solution, the knob device also includes a second elastic part, the second elastic part has a first end and a second end, the first end of the second elastic part is connected to the groove wall of the installation cavity, and the second end of the second elastic part is connected to the driving member.

[0041] It can be understood that when the knob is in the retracted position, the height of the space for accommodating the second elastic part along the axial direction of the knob device is reduced, and the second elastic part is compressed; when the knob is in the extended position, the height of the space for accommodating the second elastic part along the axial direction of the knob device is increased, and the second elastic part is reset. The second elastic part has the function of driving the driver to reset, so as to ensure the matching size of the knob and the driver.

[0042] In any of the above technical solutions, further, the groove wall of the mounting cavity is provided with a convex portion, and the first end of the second elastic portion is connected to the convex portion; the driving member is provided with an avoidance groove, and the second end of the second elastic portion is connected to the groove wall of the avoidance groove; wherein, when the knob is in the retracted position, a portion of the convex portion can extend into the avoidance groove.

[0043] In this technical solution, by reasonably setting the matching structure of the installation cavity, the driving member and the second elastic part, the groove wall of the installation cavity is provided with a convex part, the driving member is provided with an avoidance groove, the first end of the second elastic part is connected to the convex part, and the second end of the second elastic part is connected to the groove wall of the avoidance groove. The convex part can increase the contact area between the second elastic part and the cavity wall of the installation cavity, which is conducive to ensuring the stability and reliability of the installation of the second elastic part.

[0044] In addition, when the knob is in the retracted position, a part of the convex portion can extend into the avoidance groove, and the convex portion cooperates with the avoidance groove to achieve the purpose of limiting the motion trajectory of the driving member. And this arrangement can reduce the overall size of the knob device when the knob is in the retracted position.

[0045] In any of the above technical solutions, further, the mounting cavity and the protrusion are formed integrally.

[0046] In this technical solution, the mounting cavity and the convex part are formed in one piece. This structural arrangement simplifies the molding process of the mounting cavity and the convex part because the assembly process of the mounting cavity and the convex part is omitted, which is conducive to improving the processing efficiency of the product. In addition, the mounting cavity and the convex part are formed in one piece to ensure the dimensional accuracy of the product.

[0047] In any of the above technical solutions, further, the second elastic part includes a spring or a torsion spring.

[0048] In any of the above technical solutions, further, the knob includes: a knob body; a sleeve, a part of which extends into the knob body and is connected to the knob body, the sleeve is provided with an installation channel, and the installation channel and the inner surface of the knob body enclose an installation cavity; wherein a guide rib is provided in the installation channel.

[0049] In this technical solution, the knob includes a knob body and a sleeve, a portion of the sleeve extends into the knob body, and the sleeve is provided with a mounting channel, and the mounting channel and the inner surface of the knob body enclose a mounting cavity. In other words, the knob body and the sleeve enclose a mounting cavity. It can be understood that the mounting channel defines the side wall of the mounting cavity, and the inner surface of the knob body defines the bottom wall of the mounting cavity. This arrangement is conducive to simplifying the assembly process of the knob device and improving the assembly efficiency of the knob device.

[0050] Since the part of the sleeve located in the knob body is connected to the knob body, that is, the sleeve and the knob body are assembled as a whole, then when the knob body is rotated, the knob body drives the sleeve to rotate, and the rotation of the sleeve drives the driving member to rotate.

[0051] In any of the above technical solutions, further, a friction portion is formed on the outer surface of the knob body.

[0052] In this technical solution, a friction portion is formed on the outer surface of the knob body, which is convenient for the user to hold, can increase the friction between the user's hand and the knob body, and is more conducive to rotating the knob body.

[0053] Specifically, the friction part is in the shape of a ring, which is more convenient for users to hold. The friction part is formed with a plurality of convex and concave structures.

[0054] In any of the above technical solutions, further, the sleeve and the knob body are detachably connected.

[0055] In this technical solution, the shaft sleeve and the knob body can be detachably connected, such as screw connection, riveting, magnetic connection, plug connection, etc. This arrangement ensures the reliability of the connection between the shaft sleeve and the knob body, facilitates the cleaning and maintenance of the shaft sleeve and the knob body, and reduces the possibility of bacterial growth.

[0056] That is, the shaft sleeve can be separated from the knob body or assembled together according to actual use needs. This arrangement simplifies the assembly structure of the knob device, simplifies the disassembly and assembly process, reduces the difficulty of disassembly and assembly of the knob device, and is conducive to the cleaning, subsequent repair and maintenance of the knob device.

[0057] A second aspect of the present invention provides a household appliance, comprising: a knob device according to any technical solution in the first aspect.

[0058] The knob device provided by the present invention includes the knob device of any technical solution in the first aspect, and therefore has all the beneficial effects of the above-mentioned knob devices, which will not be described one by one here.

[0059] In the above technical solution, further, the household appliance also includes: an equipment body, the equipment body includes an opening, and the knob device is arranged in the equipment body; a controller is arranged in the equipment body; a switch is arranged in the equipment body, and the controller and the driving member are connected through the switch; wherein, when the knob is in the extended position, the knob body of the knob extends out of the outer surface of the equipment body through the opening, and when the knob is in the retracted position, the connection between the knob body and the equipment body has a smooth transition.

[0060] In the technical solution, the household appliance further comprises an appliance body, a controller and a switch. The electric controller is electrically connected to the switch, and the switch is connected to the driving member of the knob device. The appliance body is provided with an opening.

[0061] Specifically, when the operation of a household appliance is controlled by a knob device, the knob is pressed to move the knob to an extended position. When the knob is in the extended position, the knob body of the knob can extend out of the outer surface of the device body through the opening. At this time, the operation of the household appliance can be controlled by rotating the knob body.

[0062] Specifically, when the home appliance is controlled without a knob device, pressing the knob again causes the knob to move to the retracted position. When the knob is in the retracted position, the knob can be retracted into the device body. The connection between the knob body and the device body has a smooth transition, which can ensure the beauty and smoothness of the product appearance.

[0063] This arrangement enables the knob device to retract into the device body when the home appliance is not controlled by the knob device, thereby protecting the knob device and avoiding scratches on the knob, which is beneficial to increasing the service life of the product.

[0064] It is understandable that a plurality of guide ribs are arranged at intervals along the circumference of the driving member, and when the knob is in the extended position, each guide rib can slide into a first slide groove. There are multiple guide ribs and first slide grooves, and each guide rib cooperates with a first slide groove. This arrangement increases the matching area and matching angle of the knob and the driving member, and can guide the knob in multiple directions and multiple angles. Therefore, it is possible to avoid the situation where the knob tilts relative to the driving member, and the matching size of the knob and the driving member can be guaranteed. In this way, when the working parameters of the household appliance are adjusted using the knob, the knob will not rub against the peripheral structure of the device body, and the knob rotation will not get stuck, which can ensure the stability and reliability of the product use and help improve the product performance.

[0065] In addition, when the knob is in the extended position, multiple guide ribs and multiple first sliding grooves cooperate to limit the knob along the circumference of the knob device, that is, the knob cannot rotate relative to the driving member, the knob and the driving member are connected as a whole, the knob can drive the driving member to rotate, and the rotation of the driving member can trigger the switch connected to the driving member.

[0066] It can be understood that when the knob switches from the extended position to the retracted position, the first slide groove and the guide rib cooperate with each other to limit the movement path of the knob relative to the driving member along the axial direction of the knob device, so that the guide rib slides out of the first slide groove and is limited at the end of the first slide groove, thereby limiting the knob in the retracted position.

[0067] Specifically, a limiting portion is provided at the end of the first slide slot, and the knob can move along the first slide slot. When the knob moves to the end of the first slide slot, the knob abuts against the limiting portion at the end of the first slide slot, thereby limiting the knob in the retracted position.

[0068] Specifically, household appliances include: rice cookers, microwave ovens, washing machines, air conditioners, etc., which are not listed here one by one.

[0069] Additional aspects and advantages of the present invention will become apparent from the following description or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0070] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0071] Figure 1 A schematic structural diagram of a knob device according to an embodiment of the present invention is shown;

[0072] Figure 2 A cross-sectional view showing a knob of a knob device according to an embodiment of the present invention when the knob is in an extended position;

[0073] Figure 3 A cross-sectional view showing a knob of a knob device according to an embodiment of the present invention when the knob is in a retracted position;

[0074] Figure 4 A schematic diagram showing the structure of a knob shaft according to an embodiment of the present invention is shown;

[0075] Figure 5 A schematic diagram showing the structure of a rotor according to an embodiment of the present invention is shown;

[0076] Figure 6 A schematic structural diagram of a shaft sleeve according to an embodiment of the present invention is shown.

[0077] in, Figures 1 to 6 The corresponding relationship between the reference numerals and component names in the figure is:

[0078] 100 knob device, 110 knob, 112 mounting cavity, 114 guide rib, 116 stop wall, 118 convex portion, 120 knob body, 122 bushing, 124 mounting channel, 126 friction portion, 130 driving member, 132 first slide groove, 134 protrusion, 136 knob shaft, 138 stop portion, 140 first inclined surface, 142 second slide groove, 144 rotor, 146 second inclined surface, 148 sinking groove, 150 limiting area, 152 avoidance groove, 160 first elastic portion, 170 second elastic portion. DETAILED DESCRIPTION

[0079] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0080] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0081] Refer to the following Figures 1 to 6 The knob device 100 and the home appliance according to some embodiments of the present invention are described.

[0082] Embodiment 1:

[0083] like Figure 1 , Figure 2 , Figure 3 and Figure 6 As shown, an embodiment of the first aspect of the present invention provides a knob device 100 , which includes a knob 110 and a driving member 130 .

[0084] The knob 110 is provided with a mounting cavity 112 , and a plurality of guide ribs 114 are provided on the groove wall of the mounting cavity 112 .

[0085] A portion of the driving member 130 is located in the installation cavity 112 , and a plurality of guide ribs 114 are arranged at intervals along the circumference of the driving member 130 . The portion of the driving member 130 located in the installation cavity 112 includes a plurality of first sliding grooves 132 .

[0086] The knob 110 can move along the first slide slot 132 to switch between an extended position and a retracted position relative to the driving member 130 .

[0087] When the knob 110 is in the retracted position, the guide ribs 114 are limited at the ends of the first sliding grooves 132 , and when the knob 110 is in the extended position, each guide rib 114 can slide into one of the first sliding grooves 132 .

[0088] In detail, the knob device 100 includes a knob 110 and a driving member 130 .

[0089] The knob device 100 is used in a household appliance, which includes an appliance body, a controller and a switch. The controller and the switch are electrically connected, and the switch is connected to a driving member 130 of the knob device 100. The appliance body is provided with an opening.

[0090] Specifically, when the operation of the household appliance is controlled by the knob device 100, the knob 110 is pressed to move the knob 110 to the extended position. When the knob 110 is in the extended position, the knob 110 can extend out of the outer surface of the device body through the opening. At this time, the operation of the household appliance can be controlled by rotating the knob 110.

[0091] Specifically, when the knob device 100 is not needed to control the operation of the household appliance, the knob 110 is pressed again to move the knob 110 to the retracted position. When the knob 110 is in the retracted position, the knob 110 can be retracted to the device body. The connection between the knob 110 and the device body has a smooth transition, which can ensure the beauty and smoothness of the product appearance.

[0092] This arrangement enables the knob device 100 to retract into the device body when the knob device 100 is no longer needed to control the operation of the home appliance, thereby protecting the knob device 100 and avoiding scratches on the knob 110, which is beneficial to increasing the service life of the product.

[0093] It is understandable that a plurality of guide ribs 114 are arranged at intervals along the circumference of the driving member 130, and when the knob 110 is in the extended position, each guide rib 114 can slide into a first slide groove 132. The number of guide ribs 114 and first slide grooves 132 is multiple, and each guide rib 114 cooperates with a first slide groove 132. This arrangement increases the matching area and matching angle of the knob 110 and the driving member 130, and can guide the knob 110 in multiple directions and multiple angles. Therefore, it is possible to avoid the situation where the knob 110 is tilted relative to the driving member 130, and the matching size of the knob 110 and the driving member 130 can be guaranteed. In this way, when the knob 110 is used to adjust the working parameters of the household appliance, the knob 110 will not rub against the peripheral structure of the device body, and the knob 110 will not be stuck when rotating, which can ensure the stability and reliability of the product, and is conducive to improving the performance of the product.

[0094] In addition, when the knob 110 is in the extended position, the multiple guide ribs 114 and the multiple first slide grooves 132 cooperate to limit the knob 110 along the circumference of the knob device 100, that is, the knob 110 cannot rotate relative to the driving member 130, the knob 110 and the driving member 130 are connected as a whole, the knob 110 can drive the driving member 130 to rotate, and the rotation of the driving member 130 can trigger the switch connected to the driving member 130.

[0095] It can be understood that when the knob 110 switches from the extended position to the retracted position, the first slide groove 132 and the guide rib 114 cooperate with each other to limit the movement path of the knob 110 relative to the driving member 130 along the axial direction of the knob device 100, so that the guide rib 114 slides out of the first slide groove 132 and is limited at the end of the first slide groove 132, thereby limiting the knob 110 in the retracted position.

[0096] Specifically, a limiting portion is provided at the end of the first slide groove 132, and the knob 110 can move along the first slide groove 132. When the knob 110 moves to the end of the first slide groove 132, the knob 110 abuts against the limiting portion at the end of the first slide groove 132, thereby limiting the knob 110 in the retracted position.

[0097] Embodiment 2:

[0098] like Figure 1 , Figure 2 , Figure 3 and Figure 6 As shown, based on the embodiment 1, the embodiment 2 provides a knob device 100 , which includes a knob 110 and a driving member 130 .

[0099] The knob 110 is provided with a mounting cavity 112 , and a plurality of guide ribs 114 are provided on the groove wall of the mounting cavity 112 .

[0100] A portion of the driving member 130 is located in the installation cavity 112 , and a plurality of guide ribs 114 are arranged at intervals along the circumference of the driving member 130 . The portion of the driving member 130 located in the installation cavity 112 includes a plurality of first sliding grooves 132 .

[0101] The knob 110 can move along the first slide slot 132 to switch between an extended position and a retracted position relative to the driving member 130 .

[0102] When the knob 110 is in the retracted position, the guide ribs 114 are limited at the ends of the first sliding grooves 132 , and when the knob 110 is in the extended position, each guide rib 114 can slide into one of the first sliding grooves 132 .

[0103] Furthermore, if Figure 2 , Figure 3 and Figure 5As shown, the portion of the driving member 130 located in the installation cavity 112 further includes a plurality of protrusions 134 . The plurality of protrusions 134 are arranged at intervals around the rotation axis of the knob 110 , and a first sliding groove 132 is enclosed between any two adjacent protrusions 134 .

[0104] In detail, the portion of the driving member 130 located in the installation cavity 112 further includes a plurality of protrusions 134, which are arranged at intervals around the rotation axis of the knob 110. Specifically, any two adjacent protrusions 134 enclose a first sliding groove 132, that is, the first sliding groove 132 is defined by two adjacent protrusions 134.

[0105] In this way, when the knob 110 is in the retracted position, the guide ribs 114 of the knob 110 are limited at the ends of the protrusions 134 , and when the knob 110 is in the extended position, each guide rib 114 can bypass the protrusions 134 and slide into a first sliding groove 132 .

[0106] The plurality of protrusions 134 have the function of limiting the guide rib 114 of the knob 110 in the retracted position, so that the knob 110 is limited in the retracted position. The first slide groove 132 formed between any two adjacent protrusions 134 has the function of limiting the guide rib 114 in the extended position, so as to limit the axial movement path of the knob 110 in the knob device 100, and provide structural support for the knob 110 to drive the driving member 130 to rotate.

[0107] Embodiment 3:

[0108] like Figure 1 , Figure 2 , Figure 3 and Figure 6 As shown, based on the embodiment 2, the embodiment 3 provides a knob device 100 , which includes a knob 110 and a driving member 130 .

[0109] The knob 110 is provided with a mounting cavity 112 , and a plurality of guide ribs 114 are provided on the groove wall of the mounting cavity 112 .

[0110] A portion of the driving member 130 is located in the installation cavity 112 , and a plurality of guide ribs 114 are arranged at intervals along the circumference of the driving member 130 . The portion of the driving member 130 located in the installation cavity 112 includes a plurality of first sliding grooves 132 .

[0111] The knob 110 can move along the first slide slot 132 to switch between an extended position and a retracted position relative to the driving member 130 .

[0112] When the knob 110 is in the retracted position, the guide ribs 114 are limited at the ends of the first sliding grooves 132 , and when the knob 110 is in the extended position, each guide rib 114 can slide into one of the first sliding grooves 132 .

[0113] The portion of the driving member 130 located in the installation cavity 112 further includes a plurality of protrusions 134 . The plurality of protrusions 134 are arranged at intervals around the rotation axis of the knob 110 , and a first sliding groove 132 is enclosed between any two adjacent protrusions 134 .

[0114] Furthermore, if Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the driving member 130 further includes a knob shaft 136 and a rotor 144 .

[0115] A portion of the knob shaft 136 is located in the mounting cavity 112 . The knob shaft 136 includes a plurality of stoppers 138 and a first inclined surface 140 . Any two adjacent stoppers 138 enclose a second sliding groove 142 .

[0116] The rotor 144 is located in the installation cavity 112 . The rotor 144 is slidably connected to the knob shaft 136 . The rotor 144 includes a plurality of protrusions 134 and a second inclined surface 146 . The first sliding groove 132 is connected to the second sliding groove 142 .

[0117] The first inclined surface 140 can abut against the second inclined surface 146 to switch the matching position of the rotor 144 and the guide rib 114 .

[0118] In detail, the driving member 130 further includes a knob shaft 136 and a rotor 144. A portion of the knob shaft 136 is located in the mounting cavity 112. The portion of the knob shaft 136 located in the mounting cavity 112 includes a first inclined surface 140. The rotor 144 is located in the mounting cavity 112. The rotor 144 includes a plurality of protrusions 134 and a second inclined surface 146. The portion of the knob shaft 136 located outside the mounting cavity 112 is connected to a switch of the home appliance.

[0119] The matching position of the rotor 144 and the guide rib 114 can be switched by pressing the knob 110. The user presses the knob 110 so that the guide rib 114 is limited to the end of the protrusion 134 of the rotor 144, or the guide rib 114 bypasses the protrusion 134 and slides into the first slide groove 132 formed by two adjacent protrusions 134.

[0120] Specifically, the knob shaft 136 includes a first inclined surface 140, and the rotor 144 includes a second inclined surface 146. The first inclined surface 140 of the knob shaft 136 can contact the second inclined surface 146 of the rotor 144. When the external force acts on the knob 110 for the first time, the knob 110 moves along the first slide groove 132. When the knob 110 moves to the end of the first slide groove 132, the second inclined surface 146 cooperates with the first inclined surface 140 to drive the rotor 144 to rotate, so that the guide rib 114 abuts against the end of the first slide groove 132, and the knob 110 is limited in the retracted position. When the external force acts on the knob 110 for the second time, the second inclined surface 146 cooperates with the first inclined surface 140 to drive the rotor 144 to rotate again, the guide rib 114 passes over the end of the first slide groove 132 and slides into the first slide groove 132, and the knob 110 switches from the retracted position to the extended position.

[0121] That is, the first inclined surface 140 , the second inclined surface 146 and the protrusion 134 cooperate to drive the rotor 144 to rotate, and the rotation of the rotor 144 can switch the matching position of the guide rib 114 and the protrusion 134 .

[0122] In addition, the knob shaft 136 includes a plurality of stoppers 138, and a second slide groove 142 is enclosed between any two adjacent stoppers 138, and the first slide groove 132 is communicated with the second slide groove 142, and the guide rib 114 is slidably connected with the first slide groove 132 and the second slide groove 142. When the knob 110 is in the extended position, the plurality of guide ribs 114 cooperate with the plurality of first slide grooves 132 and the plurality of second slide grooves 142 to limit the knob 110 along the circumferential direction of the knob device 100, that is, the knob 110 cannot rotate relative to the knob shaft 136 and the rotor 144, and the knob 110, the knob shaft 136 and the rotor 144 are connected as a whole, and the knob 110 can drive the knob shaft 136 and the rotor 144 to rotate, and the rotation of the knob shaft 136 can trigger the switch connected to the driving member 130.

[0123] It can be understood that the stopper 138 cooperates with the protrusion 134 of the rotor 144 , and the stopper 138 has the function of limiting the rotor 144 along the axial direction of the knob device 100 .

[0124] Furthermore, if Figure 2 and Figure 3 As shown, the knob shaft 136 further includes a recessed groove 148 , and a plurality of stoppers 138 are located on a peripheral side of the recessed groove 148 .

[0125] A portion of the rotor 144 extends into the sink 148 and is able to slide relative to the sink 148 .

[0126] Each stopper 138 is disposed corresponding to a protrusion 134 .

[0127] Among them, by reasonably setting the matching structure of the knob shaft 136 and the rotor 144, the knob shaft 136 also includes a sink 148, a part of the rotor 144 extends into the sink 148, and can slide relative to the sink 148, and the sink 148 cooperates with the rotor 144 to play the role of limiting the rotor 144 along the axial and radial directions of the knob device 100, so as to ensure the movement path of the rotor 144 relative to the knob shaft 136. This setting can ensure that the rotor 144 can rotate relative to the knob shaft 136, and can also ensure the matching size of the rotor 144 and the knob shaft 136, providing a stable and reliable structural support for the knob 110 to effectively control the operation of the household appliance.

[0128] Furthermore, the multiple stoppers 138 of the knob shaft 136 are located on the peripheral side of the sink 148, and each stopper 138 is arranged corresponding to a protrusion 134. That is, the stopper 138 cooperates with the protrusion 134 of the rotor 144, and the stopper 138 has the function of limiting the rotor 144 along the axial direction of the knob device 100. Moreover, this arrangement increases the matching area and matching angle between the knob shaft 136 and the rotor 144, and can limit the rotor 144 in multiple directions and multiple angles, can ensure the movement path of the rotor 144, can avoid the rotor 144 from tilting relative to the knob shaft 136, and can ensure the matching size of the knob 110 and the driving member 130. In this way, when the knob 110 is used to adjust the working parameters of the household appliance, the knob 110 will not rub against the peripheral structure of the device body, and the knob 110 will not be stuck when rotating, which can ensure the stability and reliability of the product use, and is conducive to improving the product performance.

[0129] Embodiment 4:

[0130] like Figure 1 , Figure 2 , Figure 3 and Figure 6 As shown, based on the third embodiment, the fourth embodiment provides a knob device 100 , which includes a knob 110 and a driving member 130 .

[0131] The knob 110 is provided with a mounting cavity 112 , and a plurality of guide ribs 114 are provided on the groove wall of the mounting cavity 112 .

[0132] A portion of the driving member 130 is located in the installation cavity 112 , and a plurality of guide ribs 114 are arranged at intervals along the circumference of the driving member 130 . The portion of the driving member 130 located in the installation cavity 112 includes a plurality of first sliding grooves 132 .

[0133] The knob 110 can move along the first slide slot 132 to switch between an extended position and a retracted position relative to the driving member 130 .

[0134] When the knob 110 is in the retracted position, the guide ribs 114 are limited at the ends of the first sliding grooves 132 , and when the knob 110 is in the extended position, each guide rib 114 can slide into one of the first sliding grooves 132 .

[0135] The portion of the driving member 130 located in the installation cavity 112 further includes a plurality of protrusions 134 . The plurality of protrusions 134 are arranged at intervals around the rotation axis of the knob 110 , and a first sliding groove 132 is enclosed between any two adjacent protrusions 134 .

[0136] The driving member 130 further includes a knob shaft 136 and a rotor 144 .

[0137] A portion of the knob shaft 136 is located in the mounting cavity 112 . The knob shaft 136 includes a plurality of stoppers 138 and a first inclined surface 140 . Any two adjacent stoppers 138 enclose a second sliding groove 142 .

[0138] The rotor 144 is located in the installation cavity 112 . The rotor 144 is slidably connected to the knob shaft 136 . The rotor 144 includes a plurality of protrusions 134 and a second inclined surface 146 . The first sliding groove 132 is connected to the second sliding groove 142 .

[0139] The first inclined surface 140 can abut against the second inclined surface 146 to switch the matching position of the rotor 144 and the guide rib 114 .

[0140] Furthermore, if Figure 2 and Figure 3 As shown, the groove wall of the mounting cavity 112 includes a stop wall 116 , and the stop wall 116 is used to limit the protruding length of the driving member 130 relative to the knob 110 .

[0141] In detail, by reasonably setting the structure of the knob 110, the groove wall of the installation cavity 112 of the knob 110 includes a stop wall 116, and the stop wall 116 is used to limit the extension length of the driving member 130 relative to the knob 110. In this way, when the knob 110 is in the extended position, the extension length of the knob 110 relative to the device body can be guaranteed, and the situation that the knob 110 is separated from the driving member 130 can be avoided, providing reliable structural support for the effective operation of the knob device 100.

[0142] Furthermore, if Figure 2 and Figure 3 As shown, the knob device 100 further includes a first elastic portion 160 .

[0143] The first elastic portion 160 is located on the circumferential side of the knob shaft 136 , a first end of the first elastic portion 160 is disposed corresponding to the stop wall 116 , and a second end of the first elastic portion 160 is disposed corresponding to the stop portion 138 .

[0144] Among them, the knob device 100 also includes a first elastic part 160, and defines the matching structure of the first elastic part 160, the knob 110 and the driving member 130. Specifically, the first elastic part 160 is located on the circumferential side of the knob shaft 136, the first end of the first elastic part 160 is arranged corresponding to the stop wall 116, and the second end of the first elastic part 160 is arranged corresponding to the stop part 138.

[0145] It is understandable that when the knob 110 is in the retracted position, the distance between the stop wall 116 and the stop portion 138 along the axial direction of the knob device 100 is reduced, and the first elastic portion 160 is compressed; when the knob 110 is in the extended position, the distance between the stop wall 116 and the stop portion 138 along the axial direction of the knob device 100 is increased, and the first elastic portion 160 is reset. The first elastic portion 160 has the function of driving the driver 130 to reset, so as to ensure the matching size of the knob 110 and the driver 130.

[0146] Specifically, the first elastic portion 160 includes a spring or a torsion spring.

[0147] Embodiment 5:

[0148] like Figure 1 , Figure 2 , Figure 3 and Figure 6 As shown, based on Example 3 or Example 4, Example 5 provides a knob device 100 , which includes a knob 110 and a driving member 130 .

[0149] The knob 110 is provided with a mounting cavity 112 , and a plurality of guide ribs 114 are provided on the groove wall of the mounting cavity 112 .

[0150] A portion of the driving member 130 is located in the installation cavity 112 , and a plurality of guide ribs 114 are arranged at intervals along the circumference of the driving member 130 . The portion of the driving member 130 located in the installation cavity 112 includes a plurality of first sliding grooves 132 .

[0151] The knob 110 can move along the first slide slot 132 to switch between an extended position and a retracted position relative to the driving member 130 .

[0152] When the knob 110 is in the retracted position, the guide ribs 114 are limited at the ends of the first sliding grooves 132 , and when the knob 110 is in the extended position, each guide rib 114 can slide into one of the first sliding grooves 132 .

[0153] The portion of the driving member 130 located in the installation cavity 112 further includes a plurality of protrusions 134 . The plurality of protrusions 134 are arranged at intervals around the rotation axis of the knob 110 , and a first sliding groove 132 is enclosed between any two adjacent protrusions 134 .

[0154] The driving member 130 further includes a knob shaft 136 and a rotor 144 .

[0155] A portion of the knob shaft 136 is located in the mounting cavity 112 . The knob shaft 136 includes a plurality of stoppers 138 and a first inclined surface 140 . Any two adjacent stoppers 138 enclose a second sliding groove 142 .

[0156] The rotor 144 is located in the installation cavity 112 . The rotor 144 is slidably connected to the knob shaft 136 . The rotor 144 includes a plurality of protrusions 134 and a second inclined surface 146 . The first sliding groove 132 is connected to the second sliding groove 142 .

[0157] The first inclined surface 140 can abut against the second inclined surface 146 to switch the matching position of the rotor 144 and the guide rib 114 .

[0158] Furthermore, if Figure 4 As shown, a portion of the outer peripheral wall of the knob shaft 136 is recessed to form a limiting area 150 , and at least a portion of the limiting area 150 extends out of the mounting cavity 112 .

[0159] In detail, by reasonably setting the structure of the knob shaft 136, a portion of the outer peripheral wall of the knob shaft 136 is recessed to form a limiting area 150, and at least a portion of the limiting area 150 extends out of the mounting cavity 112. The knob shaft 136 is connected to other components of the household appliance. The limiting area 150 has the purpose of limiting the rotation of the knob shaft 136 relative to other components along the circumference of the knob device 100, and can meet the use requirements of the knob shaft 136 to drive other components to work.

[0160] Embodiment 6:

[0161] like Figure 1 , Figure 2 , Figure 3 and Figure 6 As shown, based on any of the above embodiments, Embodiment 6 provides a knob device 100 , which includes a knob 110 and a driving member 130 .

[0162] The knob 110 is provided with a mounting cavity 112 , and a plurality of guide ribs 114 are provided on the groove wall of the mounting cavity 112 .

[0163] A portion of the driving member 130 is located in the installation cavity 112 , and a plurality of guide ribs 114 are arranged at intervals along the circumference of the driving member 130 . The portion of the driving member 130 located in the installation cavity 112 includes a plurality of first sliding grooves 132 .

[0164] The knob 110 can move along the first slide slot 132 to switch between an extended position and a retracted position relative to the driving member 130 .

[0165] When the knob 110 is in the retracted position, the guide ribs 114 are limited at the ends of the first sliding grooves 132 , and when the knob 110 is in the extended position, each guide rib 114 can slide into one of the first sliding grooves 132 .

[0166] Furthermore, if Figure 2 and Figure 3 As shown, the knob device 100 further includes a second elastic portion 170 .

[0167] The second elastic portion 170 is located in the installation cavity 112 , a first end of the second elastic portion 170 is connected to a groove wall of the installation cavity 112 , and a second end of the second elastic portion 170 is connected to the driving member 130 .

[0168] In detail, the knob device 100 further includes a second elastic portion 170 having a first end and a second end. The first end of the second elastic portion 170 is connected to the groove wall of the installation cavity 112 , and the second end of the second elastic portion 170 is connected to the driving member 130 .

[0169] It is understandable that when the knob 110 is in the retracted position, the height of the space for accommodating the second elastic part 170 along the axial direction of the knob device 100 is reduced, and the second elastic part 170 is compressed; when the knob 110 is in the extended position, the height of the space for accommodating the second elastic part 170 along the axial direction of the knob device 100 is increased, and the second elastic part 170 is reset. The second elastic part 170 has the function of driving the driver 130 to reset, so as to ensure the matching size of the knob 110 and the driver 130.

[0170] Embodiment 7:

[0171] like Figure 1 , Figure 2 , Figure 3 and Figure 6 As shown, based on Example 6, Example 7 provides a knob device 100 , which includes a knob 110 and a driving member 130 .

[0172] The knob 110 is provided with a mounting cavity 112 , and a plurality of guide ribs 114 are provided on the groove wall of the mounting cavity 112 .

[0173] A portion of the driving member 130 is located in the installation cavity 112 , and a plurality of guide ribs 114 are arranged at intervals along the circumference of the driving member 130 . The portion of the driving member 130 located in the installation cavity 112 includes a plurality of first sliding grooves 132 .

[0174] The knob 110 can move along the first slide slot 132 to switch between an extended position and a retracted position relative to the driving member 130 .

[0175] When the knob 110 is in the retracted position, the guide ribs 114 are limited at the ends of the first sliding grooves 132 , and when the knob 110 is in the extended position, each guide rib 114 can slide into one of the first sliding grooves 132 .

[0176] The knob device 100 further includes a second elastic portion 170 .

[0177] The second elastic portion 170 is located in the installation cavity 112 , a first end of the second elastic portion 170 is connected to a groove wall of the installation cavity 112 , and a second end of the second elastic portion 170 is connected to the driving member 130 .

[0178] Furthermore, if Figure 2 and Figure 3 As shown, a groove wall of the installation cavity 112 is provided with a protrusion 118 , and a first end of the second elastic portion 170 is connected to the protrusion 118 .

[0179] The driving member 130 defines an escape groove 152 , and the second end of the second elastic portion 170 is connected to a groove wall of the escape groove 152 .

[0180] When the knob 110 is in the retracted position, a portion of the protrusion 118 can extend into the avoidance groove 152 .

[0181] In detail, by reasonably setting the matching structure of the installation cavity 112, the driving member 130 and the second elastic part 170, the groove wall of the installation cavity 112 is provided with a convex part 118, the driving member 130 is provided with an avoidance groove 152, the first end of the second elastic part 170 is connected to the convex part 118, and the second end of the second elastic part 170 is connected to the groove wall of the avoidance groove 152. The convex part 118 can increase the contact area between the second elastic part 170 and the cavity wall of the installation cavity 112, which is conducive to ensuring the stability and reliability of the installation of the second elastic part 170.

[0182] In addition, when the knob 110 is in the retracted position, a portion of the protrusion 118 can extend into the avoidance groove 152, and the protrusion 118 cooperates with the avoidance groove 152 to achieve the purpose of limiting the movement trajectory of the driving member 130. This arrangement can also reduce the overall size of the knob device 100 when the knob 110 is in the retracted position.

[0183] Furthermore, the mounting cavity 112 and the protrusion 118 are integrally formed.

[0184] The mounting cavity 112 and the convex portion 118 are formed in one piece. This structure simplifies the molding process of the mounting cavity 112 and the convex portion 118 because the assembly process of the mounting cavity 112 and the convex portion 118 is omitted, which is beneficial to improving the processing efficiency of the product. In addition, the mounting cavity 112 and the convex portion 118 are formed in one piece to ensure the dimensional accuracy of the product.

[0185] Specifically, the second elastic portion 170 includes a spring or a torsion spring.

[0186] Embodiment 8:

[0187] like Figure 1 , Figure 2 , Figure 3 and Figure 6 As shown, based on any of the above embodiments, Embodiment 8 provides a knob device 100 , which includes a knob 110 and a driving member 130 .

[0188] The knob 110 is provided with a mounting cavity 112 , and a plurality of guide ribs 114 are provided on the groove wall of the mounting cavity 112 .

[0189] A portion of the driving member 130 is located in the installation cavity 112 , and a plurality of guide ribs 114 are arranged at intervals along the circumference of the driving member 130 . The portion of the driving member 130 located in the installation cavity 112 includes a plurality of first sliding grooves 132 .

[0190] The knob 110 can move along the first slide slot 132 to switch between an extended position and a retracted position relative to the driving member 130 .

[0191] When the knob 110 is in the retracted position, the guide ribs 114 are limited at the ends of the first sliding grooves 132 , and when the knob 110 is in the extended position, each guide rib 114 can slide into one of the first sliding grooves 132 .

[0192] Furthermore, if Figure 2 and Figure 3 As shown, the knob 110 includes a knob body 120 and a sleeve 122 .

[0193] A portion of the shaft sleeve 122 extends into the knob body 120 and is connected to the knob body 120 . The shaft sleeve 122 is provided with a mounting channel 124 . The mounting channel 124 and the inner surface of the knob body 120 enclose a mounting cavity 112 .

[0194] A guide rib 114 is disposed in the installation channel 124 .

[0195] In detail, the knob 110 includes a knob body 120 and a sleeve 122, a portion of the sleeve 122 extends into the knob body 120, and the sleeve 122 is provided with a mounting channel 124, and the mounting channel 124 and the inner surface of the knob body 120 enclose a mounting cavity 112. In other words, the knob body 120 and the sleeve 122 enclose the mounting cavity 112. It can be understood that the mounting channel 124 defines the side wall of the mounting cavity 112, and the inner surface of the knob body 120 defines the bottom wall of the mounting cavity 112. This arrangement is conducive to simplifying the assembly process of the knob device 100 and improving the assembly efficiency of the knob device 100.

[0196] Since the portion of the sleeve 122 located inside the knob body 120 is connected to the knob body 120 , that is, the sleeve 122 and the knob body 120 are assembled as a whole, when the knob body 120 is rotated, the knob body 120 drives the sleeve 122 to rotate, and the rotation of the sleeve 122 drives the driving member 130 to rotate.

[0197] Furthermore, if Figure 1 As shown, a friction portion 126 is formed on the outer surface of the knob body 120 .

[0198] Among them, a friction part 126 is formed on the outer surface of the knob body 120 to facilitate the user's grip, increase the friction between the user's hand and the knob body 120, and facilitate the rotation of the knob body 120.

[0199] Specifically, the friction part 126 is in the shape of a ring, which is more convenient for the user to hold. The friction part 126 is formed with a plurality of convex and concave structures.

[0200] Furthermore, the shaft sleeve 122 and the knob body 120 are detachably connected.

[0201] The shaft sleeve 122 and the knob body 120 can be detachably connected, such as screwing, riveting, magnetic connection, plug connection, etc. This arrangement ensures the reliability of the connection between the shaft sleeve 122 and the knob body 120, facilitates the cleaning and maintenance of the shaft sleeve 122 and the knob body 120, and reduces the possibility of bacterial growth.

[0202] That is, the shaft sleeve 122 can be separated from the knob body 120 according to actual use needs, or the shaft sleeve 122 can be assembled with the knob body 120. This arrangement simplifies the assembly structure of the knob device 100, simplifies the disassembly and assembly process, reduces the difficulty of disassembly and assembly of the knob device 100, and facilitates the cleaning, subsequent repair and maintenance of the knob device 100.

[0203] Embodiment 9:

[0204] like Figure 1 , Figure 2 , Figure 3 and Figure 6 As shown, an embodiment of the second aspect of the present invention provides a household appliance, including: a knob device 100 of any embodiment of the first aspect.

[0205] The knob device 100 of the present invention includes the knob device 100 of any embodiment in the first aspect, and therefore has all the beneficial effects of the above-mentioned knob device 100, which will not be described one by one here.

[0206] Furthermore, the household appliance also includes an appliance body, a controller and a switch.

[0207] The device body comprises an opening, and the knob device 100 is arranged on the device body.

[0208] The controller is arranged in the device body.

[0209] The switch is disposed in the device body, and the controller and the driving member 130 are connected via the switch.

[0210] When the knob 110 is in the extended position, the knob body 120 of the knob 110 extends out of the outer surface of the device body through the opening, and when the knob 110 is in the retracted position, the connection between the knob body 120 and the device body has a smooth transition.

[0211] The household appliance further comprises an appliance body, a controller and a switch. The electric controller and the switch are electrically connected, and the switch is connected to the driving member 130 of the knob device 100. The appliance body is provided with an opening.

[0212] Specifically, when the operation of the household appliance is controlled by the knob device 100, the knob 110 is pressed to move the knob 110 to the extended position. When the knob 110 is in the extended position, the knob body 120 of the knob 110 can extend out of the outer surface of the device body through the opening. At this time, the operation of the household appliance can be controlled by rotating the knob body 120.

[0213] Specifically, when the knob device 100 is not needed to control the operation of the household appliance, the knob 110 is pressed again to move the knob 110 to the retracted position. When the knob 110 is in the retracted position, the knob 110 can be retracted to the device body, and the connection between the knob body 120 and the device body has a smooth transition, which can ensure the beauty and smoothness of the product appearance.

[0214] This arrangement enables the knob device 100 to retract into the device body when the knob device 100 is no longer needed to control the operation of the home appliance, thereby protecting the knob device 100 and avoiding scratches on the knob 110, which is beneficial to increasing the service life of the product.

[0215] It is understandable that a plurality of guide ribs 114 are arranged at intervals along the circumference of the driving member 130, and when the knob 110 is in the extended position, each guide rib 114 can slide into a first slide groove 132. The number of guide ribs 114 and first slide grooves 132 is multiple, and each guide rib 114 cooperates with a first slide groove 132. This arrangement increases the matching area and matching angle of the knob 110 and the driving member 130, and can guide the knob 110 in multiple directions and multiple angles. Therefore, it is possible to avoid the situation where the knob 110 is tilted relative to the driving member 130, and the matching size of the knob 110 and the driving member 130 can be guaranteed. In this way, when the knob 110 is used to adjust the working parameters of the household appliance, the knob 110 will not rub against the peripheral structure of the device body, and the knob 110 will not be stuck when rotating, which can ensure the stability and reliability of the product, and is conducive to improving the performance of the product.

[0216] In addition, when the knob 110 is in the extended position, the multiple guide ribs 114 and the multiple first slide grooves 132 cooperate to limit the knob 110 along the circumference of the knob device 100, that is, the knob 110 cannot rotate relative to the driving member 130, the knob 110 and the driving member 130 are connected as a whole, the knob 110 can drive the driving member 130 to rotate, and the rotation of the driving member 130 can trigger the switch connected to the driving member 130.

[0217] It can be understood that when the knob 110 switches from the extended position to the retracted position, the first slide groove 132 and the guide rib 114 cooperate with each other to limit the movement path of the knob 110 relative to the driving member 130 along the axial direction of the knob device 100, so that the guide rib 114 slides out of the first slide groove 132 and is limited at the end of the first slide groove 132, thereby limiting the knob 110 in the retracted position.

[0218] Specifically, a limiting portion is provided at the end of the first slide groove 132, and the knob 110 can move along the first slide groove 132. When the knob 110 moves to the end of the first slide groove 132, the knob 110 abuts against the limiting portion at the end of the first slide groove 132, thereby limiting the knob 110 in the retracted position.

[0219] Specifically, household electrical appliances include: rice cookers, microwave ovens, washing machines, air conditioners, etc., which are not listed here one by one.

[0220] Embodiment 10:

[0221] The knob device 100 includes a knob shaft 136 , a sleeve 122 , a first elastic portion 160 , a second elastic portion 170 , a rotor 144 and a knob body 120 .

[0222] A guide rib 114 is disposed inside the shaft sleeve 122 .

[0223] The knob shaft 136 is provided with a second slide groove 142, and the rotor 144 is provided with a first slide groove 132, and the first slide groove 132 is connected with the second slide groove 142. When the knob 110 is in the retracted position, the guide ribs 114 are limited at the ends of the first slide groove 132, and when the knob 110 is in the extended position, each guide rib 114 can slide into one first slide groove 132 and one second slide groove 142.

[0224] When the knob device 100 is working, the first inclined surface 140 on the knob shaft 136 cooperates with the second inclined surface 146 on the rotor 144. The second slide groove 142 on the knob shaft 136, the first slide groove 132 on the rotor 144 and the guide rib 114 on the sleeve 122 cooperate. When the knob 110 is switched from the extended position to the retracted position, when the guide rib 114 reaches the end of the first slide groove 132, the first inclined surface 140 and the second inclined surface 146 cooperate to drive the rotor 144 to rotate a certain angle, so that the guide rib 114 is limited to the end of the first slide groove 132. When the knob 110 is switched from the retracted position to the extended position, the rotor 144 rotates a certain angle again due to the action of the first inclined surface 140, so as to slide into the first slide groove 132.

[0225] This arrangement solves the eccentricity problem of the knob 110 in the related art and avoids the knob 110 from scratching the surrounding structure.

[0226] In detail, the knob device 100 includes a knob 110 and a driving member 130 .

[0227] The knob device 100 is used in a household appliance, which includes an appliance body, a controller and a switch. The controller and the switch are electrically connected, and the switch is connected to a driving member 130 of the knob device 100. The appliance body is provided with an opening.

[0228] Specifically, when the operation of the household appliance is controlled by the knob device 100, the knob 110 is pressed to move the knob 110 to the extended position. When the knob 110 is in the extended position, the knob 110 can extend out of the outer surface of the device body through the opening. At this time, the operation of the household appliance can be controlled by rotating the knob 110.

[0229] Specifically, when the knob device 100 is not needed to control the operation of the household appliance, the knob 110 is pressed again to move the knob 110 to the retracted position. When the knob 110 is in the retracted position, the knob 110 can be retracted to the device body. The connection between the knob 110 and the device body has a smooth transition, which can ensure the beauty and smoothness of the product appearance.

[0230] This arrangement enables the knob device 100 to retract into the device body when the knob device 100 is no longer needed to control the operation of the home appliance, thereby protecting the knob device 100 and avoiding scratches on the knob 110, which is beneficial to increasing the service life of the product.

[0231] It is understandable that a plurality of guide ribs 114 are arranged at intervals along the circumference of the driving member 130, and when the knob 110 is in the extended position, each guide rib 114 can slide into a first slide groove 132. The number of guide ribs 114 and first slide grooves 132 is multiple, and each guide rib 114 cooperates with a first slide groove 132. This arrangement increases the matching area and matching angle of the knob 110 and the driving member 130, and can guide the knob 110 in multiple directions and multiple angles. Therefore, it is possible to avoid the situation where the knob 110 is tilted relative to the driving member 130, and the matching size of the knob 110 and the driving member 130 can be guaranteed. In this way, when the knob 110 is used to adjust the working parameters of the household appliance, the knob 110 will not rub against the peripheral structure of the device body, and the knob 110 will not be stuck when rotating, which can ensure the stability and reliability of the product, and is conducive to improving the performance of the product.

[0232] In addition, when the knob 110 is in the extended position, the plurality of guide ribs 114 and the plurality of first slide grooves 132 cooperate to limit the knob 110 along the circumferential direction of the knob device 100, that is, the knob 110 cannot rotate relative to the driving member 130, the knob 110 and the driving member 130 are connected as a whole, the knob 110 can drive the driving member 130 to rotate, and the rotation of the driving member 130 can trigger the switch connected to the driving member 130. It can be understood that when the knob 110 switches from the extended position to the retracted position, the first slide groove 132 and the guide rib 114 cooperate with each other to limit the movement path of the knob 110 relative to the driving member 130 along the axial direction of the knob device 100, so that the guide rib 114 slides out of the first slide groove 132 and is limited at the end of the first slide groove 132, thereby limiting the knob 110 in the retracted position.

[0233] Specifically, a limiting portion is provided at the end of the first slide groove 132, and the knob 110 can move along the first slide groove 132. When the knob 110 moves to the end of the first slide groove 132, the knob 110 abuts against the limiting portion at the end of the first slide groove 132, thereby limiting the knob 110 in the retracted position.

[0234] In the present invention, the term "plurality" refers to two or more than two, unless otherwise clearly defined. The terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0235] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0236] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A knob device, characterized in that: include: A knob, wherein the knob is provided with a mounting cavity, and a plurality of guide ribs are provided on a groove wall of the mounting cavity; A driving member, a portion of which is located in the installation cavity, the plurality of guide ribs are arranged at intervals along the circumference of the driving member, and the portion of the driving member located in the installation cavity includes a plurality of first sliding grooves; The knob is movable along the first slide slot to switch between an extended position and a retracted position relative to the driving member; Wherein, when the knob is in the retracted position, the guide rib is limited at the end of the first sliding groove, and when the knob is in the extended position, each guide rib can slide into one of the first sliding grooves.

2. The knob device according to claim 1, characterized in that: The portion of the driving member located in the installation cavity further includes a plurality of protrusions, which are arranged at intervals around the rotation axis of the knob, and any two adjacent protrusions enclose a first sliding groove.

3. The knob device according to claim 2, characterized in that: The driving member also includes: A knob shaft, a portion of which is located in the mounting cavity, the knob shaft comprising a plurality of stoppers and a first inclined surface, and a second sliding groove is enclosed between any two adjacent stoppers; A rotor is located in the installation cavity, the rotor is slidably connected with the knob shaft, the rotor includes the plurality of protrusions and the second inclined surface, and the first slide groove is connected with the second slide groove; The first inclined surface can abut against the second inclined surface to switch the matching position of the rotor and the guide rib.

4. The knob device according to claim 3, characterized in that: The knob shaft further comprises a recessed groove, and the plurality of stoppers are located on the peripheral side of the recessed groove; A portion of the rotor extends into the sink and is able to slide relative to the sink; Wherein, each of the stop portions is arranged corresponding to one of the protrusions.

5. The knob device according to claim 3, characterized in that: The groove wall of the installation cavity includes a stop wall, and the stop wall is used to limit the extension length of the driving member relative to the knob.

6. The knob device according to claim 5, characterized in that: Also includes: The first elastic part is located on the circumferential side of the knob shaft, the first end of the first elastic part is arranged corresponding to the stop wall, and the second end of the first elastic part is arranged corresponding to the stop part.

7. The knob device according to claim 3, characterized in that: A portion of the outer peripheral wall of the knob shaft is recessed to form a limiting area, and at least a portion of the limiting area extends out of the installation cavity.

8. The knob device according to any one of claims 1 to 7, characterized in that: Also includes: The second elastic part is located in the installation cavity, the first end of the second elastic part is connected to the groove wall of the installation cavity, and the second end of the second elastic part is connected to the driving member.

9. The knob device according to claim 8, characterized in that: The groove wall of the installation cavity is provided with a convex portion, and the first end of the second elastic portion is connected to the convex portion; The driving member is provided with an avoidance groove, and the second end of the second elastic portion is connected to the groove wall of the avoidance groove; Wherein, when the knob is in the retracted position, a portion of the protrusion can extend into the avoidance groove.

10. The knob device according to claim 9, characterized in that: The mounting cavity and the convex portion are formed integrally; The second elastic part includes a spring or a torsion spring.

11. The knob device according to any one of claims 1 to 7, characterized in that: The knob comprises: Knob body; A shaft sleeve, a part of which extends into the knob body and is connected to the knob body, the shaft sleeve is provided with a mounting channel, and the mounting channel and the inner surface of the knob body enclose the mounting cavity; Wherein, the guide rib is provided in the installation channel.

12. The knob device according to claim 11, characterized in that: A friction portion is formed on the outer surface of the knob body.

13. The knob device according to claim 11, characterized in that: The shaft sleeve is detachably connected to the knob body.

14. A household appliance, characterized in that: include: The knob device according to any one of claims 1 to 13.

15. The household appliance according to claim 14, characterized in that: Also includes: A device body, the device body comprising an opening, the knob device being arranged on the device body; A controller, disposed in the device body; A switch, disposed in the device body, through which the controller and the driving member are connected; Wherein, when the knob is in the extended position, the knob body of the knob extends out of the outer surface of the device body through the opening, and when the knob is in the retracted position, the connection between the knob body and the device body has a smooth transition.

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