Knob control device and electrical equipment

Abstract

The embodiment of the utility model discloses a knob control device and electrical equipment, and relates to the technical field of knobs. The knob control device comprises a control panel, a first gear, a second gear and a potentiometer, and the potentiometer comprises a control column; the potentiometer is arranged on the control panel; the second gear is connected with a control column of the potentiometer; the second gear is meshed with the first gear; wherein the second gear is synchronously driven to rotate by rotating the first gear, and the control column is synchronously driven to rotate when the second gear rotates, so that the gear switching of the potentiometer is realized. Therefore, according to the embodiment of the utility model, the second gear is meshed with the first gear to realize rotation transmission, and the transmission reliability between the first gear and the second gear is high, so that the conditions of rotation slip, rotation clearance and the like in the transmission process are effectively avoided, and the rotation control precision is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to knob technical field especially, it relates to a knob control device and electric equipment. BACKGROUND

[0002] Electric appliance, for example, electric heater, electric fan etc., usually use knob to control.

[0003] By rotating the knob, the control of different gears can be realized, for example, the fan can realize the wind volume of different gears. It can be seen that the reliability of knob rotation control plays a crucial role in realizing accurate control.

[0004] However, the rotation control precision of the existing knob is not high, and it is easy to appear slippage, rotation virtual position and the like, thereby leading to inaccurate knob control. INVENTION CONTENTS

[0005] The technical problem to be solved by the utility model embodiment is how to improve the control precision of the knob.

[0006] In order to solve the above problem, first, the utility model embodiment proposes a knob control device, the knob control device includes control board, first gear, second gear and potentiometer, the potentiometer includes control column;The potentiometer is located on the control board;The second gear is connected with the control column of the potentiometer;The second gear is engaged with the first gear;Wherein, by rotating the first gear synchronous drive the second gear rotates, the second gear rotates synchronous drive the control column rotates, realizes the gear switching of the potentiometer.

[0007] Further technical solutions are that the front surface of the first gear is provided with an upwardly protruding rotation protrusion.

[0008] Further technical solutions are that the control board is provided with a support column, and the support column is supported at the bottom of the first gear.

[0009] Further technical solutions are that the bottom of the first gear is provided with a first limiting groove body, the first limiting groove body is opened in the rotation protrusion, the support column is embedded in the first limiting groove body, and the first gear can rotate around the support column.

[0010] Further technical solutions are that the knob control device further includes a bracket body, and the bracket body includes a limiting hole;The first gear is arranged on the upper side of the bracket body, and the support column passes through the limiting hole and is embedded in the first limiting groove body.

[0011] Further, a further technical solution is that the support body is provided with an upwardly protruding fitting part at the outer periphery of the limiting hole; the bottom of the first gear is provided with a second limiting groove body at the outer periphery of the first limiting groove body, and the fitting part is fitted in the second limiting groove body.

[0012] Further, a further technical solution is that the lower side of the support body is provided with a plurality of uniformly distributed supporting legs; the supporting legs are detachably connected with the control plate.

[0013] Further, a further technical solution is that the end of each supporting leg is provided with a clamping hook, the control plate is provided with a plurality of clamping openings, the number of the clamping openings is the same as that of the supporting legs; the clamping hooks of the supporting legs are respectively fitted in the clamping openings.

[0014] Further, a further technical solution is that the second gear is provided with a center hole, the center hole is provided with a limiting block, the end of the control column is provided with a notched groove, the control column is inserted into the center hole, and the limiting block is fitted in the notched groove; wherein the relative rotation between the control column and the second gear is limited by the limiting block and the notched groove.

[0015] In a second aspect, the utility model discloses a kind of electric appliances, and the electric appliances include the knob control device as described in the first aspect.

[0016] Compared with prior art, the technical effects that can be achieved by the utility model embodiment include:

[0017] In the utility model embodiment, the knob control device includes control plate, first gear, second gear and potentiometer, and the potentiometer includes control column; the potentiometer is arranged on the control plate; the second gear is connected with the control column of the potentiometer; the second gear is engaged with the first gear; wherein the first gear is rotated to drive the second gear to rotate synchronously, the control column is driven to rotate synchronously when the second gear rotates, and the gear position switching of the potentiometer is realized. It can be seen that the utility model embodiment realizes rotation transmission by the engagement of the second gear and the first gear, and the transmission reliability between the first gear and the second gear is high, so that rotation slip and rotation virtual position and other conditions in the transmission process are effectively avoided, and the precision of rotation control is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] The drawings incorporated into the specification and forming part of the specification, show embodiments consistent with the utility model, and together with the specification, are used to explain the principle of the utility model.

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0021] Fig. 1 This is a schematic diagram of the structure of a knob control device according to an embodiment of the present invention;

[0022] Fig. 2 An exploded view of a knob control device according to an embodiment of this utility model;

[0023] Fig. 3 This is a schematic diagram of the structure of the second gear of a knob control device according to an embodiment of the present invention;

[0024] Fig. 4 This is a schematic diagram of the structure of a potentiometer for a knob control device according to an embodiment of the present invention;

[0025] Fig. 5 This is a schematic diagram of the structure of the first gear of a knob control device proposed in an embodiment of the present invention.

[0026] Reference Signs

[0027] Control board 10, first gear 20, second gear 30, potentiometer 40, bracket body 50, support column 11, bayonet 12, rotating protrusion 21, first limiting groove 22, second limiting groove 23, center hole 31, limiting block 311, control column 41, notch groove 411, limiting hole 51, fitting part 52, support leg 53, hook 531, fitting opening 54. Detailed Implementation

[0028] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Similar component reference numerals in the drawings represent similar components. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0029] It should be understood that the terms "comprise" and "include" as used in the specification and the appended claims indicate the presence of the described features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0030] It should also be understood that the terms used in the present utility model embodiment specification are only for the purpose of describing specific embodiments and are not intended to limit the present utility model embodiments. As used in the present utility model embodiment specification and the appended claims, the singular forms "a", "an" and "the" are intended to include the plural forms unless the context clearly indicates otherwise.

[0031] Referring to Figs. 1-5 The present utility model embodiment proposes a knob control device, which is accurate in rotation control and can effectively avoid rotation slip and rotation false position, greatly improving the accuracy of rotation control. In order to achieve the above technical purpose, the knob control device comprises a control panel 10, a first gear 20, a second gear 30 and a potentiometer 40, and the specific structure is introduced as follows:

[0032] The potentiometer 40 comprises a control column 41; by rotating the control column 41, the point of the potentiometer 40 can be changed, so as to switch to different gears.

[0033] The potentiometer 40 is arranged on the control panel 10; specifically, it can be fixed by welding or other fixed connection methods, which are not limited in the present utility model.

[0034] The second gear 30 is connected with the control column 41 of the potentiometer 40; when the second gear 30 rotates, it synchronously drives the control column 41 of the potentiometer 40 to rotate, thereby realizing the control of the potentiometer 40.

[0035] The second gear 30 is engaged with the first gear 20; wherein the first gear 20 is rotated to synchronously drive the second gear 30 to rotate, and the second gear 30 is rotated to synchronously drive the control column 41 to rotate, thereby realizing the gear switching of the potentiometer 40.

[0036] Specifically, the diameter of the first gear 20 is greater than that of the second gear 30, so that when the first gear 20 is rotated, it can be more labor-saving, and the user can easily rotate the second gear 30 through the first gear 20, greatly improving the user experience. In the present utility model, the control of the potentiometer 40 is realized by gear transmission, and since the transmission between gears is highly reliable, rotation slip and rotation false position and the like are effectively avoided, greatly improving the accuracy of rotation control.

[0037] In the embodiment of the utility model, knob control device includes control board 10, first gear 20, second gear 30 and potentiometer 40, the potentiometer 40 includes control column 41, the potentiometer 40 is located on the control board 10, the second gear 30 is connected with the control column 41 of potentiometer 40, the second gear 30 is engaged with first gear 20, wherein by rotating the first gear 20 synchronous drive the second gear 30 rotates, the second gear 30 rotates synchronous drive control column 41 rotates, realizes the gear switching of potentiometer 40. Visible, the utility model discloses an embodiment by the second gear 30 with the first gear 20 engagement to realize rotation transmission, because the transmission reliability between first gear 20 and second gear 30 is high, thereby effectively avoid the rotation slip and rotation virtual position etc. in transmission process, greatly improve the precision of rotation control.

[0038] Further, in some embodiments, for example in the embodiment, the front of the first gear 20 is provided with an upwardly protruding rotating lug 21. The shape of the rotating lug 21 can be cylindrical, the rotating lug 21 can be integrally formed with the first gear 20, and the rotating lug 21 is located at the center of the first gear 20, so that no deviation occurs during rotation. The rotating lug 21 facilitates the user to rotate the first gear 20, thereby improving the convenience of user operation.

[0039] Further, in some embodiments, for example in the embodiment, the control board 10 is provided with a support column 11, and the support column 11 is supported at the bottom of the first gear 20. The first gear 20 can be supported by the support column 11 to achieve the limiting and fixing of the first gear 20.

[0040] Specifically, the bottom of the first gear 20 is provided with a first limiting groove 22, the first limiting groove 22 is opened in the rotating lug 21, the support column 11 is embedded in the first limiting groove 22, and the first gear 20 can rotate around the support column 11.

[0041] By embedding the support column 11 in the first limiting groove 22, the limiting and fixing of the first gear 20 can be achieved. The first limiting groove 22 is opened in the rotating lug 21 and located in the central region of the first gear 20. The first limiting groove 22 can be circular.

[0042] Further, in some embodiments, for example in the embodiment, the knob control device further comprises a bracket body 50, the bracket body 50 comprises a limiting hole 51, the first gear 20 is arranged on the upper side of the bracket body 50, and the support column 11 is embedded in the first limiting groove 22 through the limiting hole 51.

[0043] The support body 50 is located between the control panel 10 and the first gear 20, and is used to further support the first gear 20. A limiting hole 51 is located at the center of the support body 50, and is used for the support column 11 to pass through.

[0044] Further, in some embodiments, such as the present embodiment, the support body 50 is provided with an upwardly protruding fitting part 52 at the outer periphery of the limiting hole 51; the bottom of the first gear 20 is provided with a second limiting groove 23 located at the outer periphery of the first limiting groove body 22, and the fitting part 52 is embedded in the second limiting groove 23.

[0045] Specifically, the fitting part 52 is used to further limit and fix the first gear 20. The second limiting groove 23 is opened in the area outside the rotating protrusion 21, and is located at the outer periphery of the first limiting groove body 22 and is arranged in space with the first limiting groove body 22. The fitting part 52 is embedded in the second limiting groove 23, and the teeth of the first gear 20 are located at the outer periphery of the fitting part 52.

[0046] Further, in some embodiments, such as the present embodiment, the lower side of the support body 50 is provided with a plurality of evenly distributed supporting legs 53; and each of the plurality of supporting legs 53 is detachably connected with the control panel 10.

[0047] Specifically, the plurality of supporting legs 53 can be detachably connected with the control panel 10 through a buckle structure, and the present embodiment is not specifically limited in this regard. The plurality of supporting legs 53 are used to reliably and stably support the support body 50 on the control panel 10.

[0048] Further, in some embodiments, such as the present embodiment, the end of each supporting leg 53 is provided with a clasp 531, and the control panel 10 is provided with a plurality of clamping openings 12, the number of the clamping openings 12 being the same as the number of the supporting legs 53; and the clasp 531 of each of the plurality of supporting legs 53 is embedded in the plurality of clamping openings 12, respectively.

[0049] Specifically, the number of the supporting legs 53 is three, and they are arranged in an equilateral triangle, thereby greatly improving the stability of the fixation. The number of the clamping openings 12 is also three, and the distribution manner is the same as that of the supporting legs 53. The clasp 531 of each of the three supporting legs 53 is detachably embedded in the three clamping openings 12, respectively, thereby realizing reliable and stable support of the support body 50.

[0050] Further, the second gear 30 is provided with a center hole 31, a limiting block 311 is arranged in the center hole 31, an end of the control column 41 is provided with a notch groove 411, the control column 41 is inserted into the center hole 31, and the limiting block 311 is embedded in the notch groove 411; wherein the relative rotation between the control column 41 and the second gear 30 is limited by the limiting block 311 and the notch groove 411.

[0051] Specifically, the center hole 31 is arranged at the central region of the second gear 30, so that the rotation process will not be deviated. When the control column 41 is inserted into the center hole 31, the mutual limiting and embedding between the limiting block 311 and the notch groove 411 can effectively avoid the mutual rotation between the control column 41 and the second gear 30, thereby greatly improving the reliability of rotation.

[0052] Further, the second gear 30 is arranged at the lower side of the support body 50, the bottom surface of the support body 50 is provided with an embedding hole 54, a part of the second gear 30 is embedded in the embedding hole 54 and is engaged with the first gear 20.

[0053] The utility model discloses an electric appliance, the electric appliance includes the knob control device provided by any one of the above embodiments.

[0054] The electric appliance can be a common household appliance such as an electric fan or an electric heater, and the utility model does not specifically limit this.

[0055] In the above embodiments, the description of each embodiment has its own focus, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0056] In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like is the orientation or position relationship shown based on the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0057] In addition, the terms "first", "second", "third", etc. are used herein only to describe various circumstances, and should not be construed as indicating or implying relative importance or an indicated number of the technical features. Therefore, the features defined as "first", "second", etc. can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more than two, unless otherwise specifically limited.

[0058] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be connected, or it can be detachable, or it can be integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or it can be the communication or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0059] In the present application, unless otherwise specifically defined and limited, the first feature "on" or "under" the second feature can include the direct contact of the first and second features, or the indirect contact of the first and second features through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes the first feature directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes the first feature directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0060] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" 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 application. In the present application, the illustrative description of the above terms should not be understood as necessarily referring 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. In addition, those skilled in the art can combine and combine different embodiments or examples described in the present application.

[0061] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, these modifications and variations of the present application are within the scope of the claims of the present application and its equivalent technologies, and the present application also intends to include these modifications and variations.

[0062] The above describes the specific implementation manner of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can easily think of various equivalent modifications or replacements within the technical range disclosed by the present application, and these modifications or replacements should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A knob control device, characterized in that, The device includes a control board, a first gear, a second gear, and a potentiometer, the potentiometer including a control post; the potentiometer is mounted on the control board; the second gear is connected to the control post of the potentiometer; the second gear meshes with the first gear; wherein, by rotating the first gear, the second gear is synchronously driven to rotate, and the second gear, when rotating, synchronously drives the control post to rotate, thereby realizing the switching of the potentiometer's gear positions.

2. The knob control device according to claim 1, characterized in that, The front of the first gear is provided with an upwardly protruding rotating protrusion.

3. The knob control device according to claim 2, characterized in that, The control panel is provided with a support column, which is supported on the bottom of the first gear.

4. The knob control device according to claim 3, characterized in that, The bottom of the first gear is provided with a first limiting groove, which is opened in the rotating protrusion. The support column is embedded in the first limiting groove, and the first gear can rotate around the support column.

5. The knob control device according to claim 4, characterized in that, The knob control device also includes a bracket body, which includes a limiting hole; the first gear is located on the upper side of the bracket body, and the support column passes through the limiting hole and is embedded in the first limiting groove.

6. The knob control device according to claim 5, characterized in that, The bracket body has an upwardly protruding fitting part on the outer periphery of the limiting hole; the bottom of the first gear has a second limiting groove body located on the outer periphery of the first limiting groove body, and the fitting part is fitted into the second limiting groove body.

7. The knob control device according to claim 5, characterized in that, The lower side of the support body is provided with multiple evenly distributed support legs; each of the support legs is detachably connected to the control board.

8. The knob control device according to claim 7, characterized in that, Each of the legs is provided with a hook at its end, and the control board is provided with multiple slots, the number of which is the same as the number of legs; the hooks of the multiple legs are respectively embedded in the multiple slots.

9. The knob control device according to claim 1, characterized in that, The second gear has a central hole, and a limiting block is provided in the central hole. The end of the control column has a notch, the control column is inserted into the central hole, and the limiting block is embedded in the notch; wherein, the relative rotation between the control column and the second gear is restricted by the limiting block and the notch.

10. An electrical appliance, characterized in that, The electrical equipment includes a rotary control device as described in any one of claims 1-9.

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