Knob assembly and electronic equipment

Abstract

The utility model provides a knob assembly and an electronic device, and the knob assembly comprises a screw cap which is provided with a positioning cavity used for accommodating a rotating shaft; and the protective sleeve is assembled in the positioning cavity and used for being arranged on the peripheral side of the rotating shaft in a sleeving mode, and the rotary cover partially extends into the protective sleeve and abuts against the peripheral side of the rotating shaft, so that interference fit between the rotating shaft and the rotary cover is formed. The protective sleeve is arranged between the rotating shaft and the inner peripheral wall of the positioning cavity, so that the protective sleeve can prevent the screw cap from being cracked by the rotating shaft; moreover, the screw cap partially abuts against the peripheral side of the rotating shaft to realize interference assembly between the rotating shaft and the screw cap, so that the screw cap and the rotating shaft are in a local but non-peripheral interference structural design, the phenomenon that the screw cap is cracked due to large stress generated by large magnitude of interference can be avoided, tight contact between the screw cap and the rotating shaft can be guaranteed, and the service life of the screw cap is prolonged. And the phenomenon that the screw cap is easy to fall off is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to electronic equipment technical field especially, relate to a knob assembly and electronic equipment. BACKGROUND

[0002] In electrical equipment, mechanical equipment, electronic equipment and many other fields, knob caps are widely used in various control panels, operation interfaces and the like for adjusting and controlling various parameters and functions of equipment.

[0003] In the related art, the knob cap is assembled on the rotating shaft, and generally, the inner ring of the knob cap is in interference fit with the rotating shaft, wherein, if the interference amount is small, the knob cap is prone to loosening, and if the interference amount is large, the rotating shaft will generate strong stress on the protrusion, causing the knob cap to crack, resulting in defects in the assembly between the knob cap and the rotating shaft. SUMMARY

[0004] The technical problem to be solved by the utility model is to provide a knob assembly and electronic equipment, aiming to solve the problem of defects in the assembly between the knob cap and the rotating shaft in the knob assembly in the related art.

[0005] To solve the above technical problems, the utility model provides a knob assembly in the first aspect, which comprises:

[0006] A rotating cover is provided with a positioning cavity for accommodating a rotating shaft; and,

[0007] A protective sleeve is assembled in the positioning cavity and is used for sleeving the outer circumferential side of the rotating shaft, the rotating cover part extends into the protective sleeve and abuts against the outer circumferential side of the rotating shaft, so as to form interference fit between the rotating shaft and the rotating cover.

[0008] Optionally, the rotating cover comprises:

[0009] A first cover body is provided with a first mounting cavity;

[0010] A second cover body is arranged in the first mounting cavity and is provided with the positioning cavity; and,

[0011] A soft rubber part is arranged on the inner circumferential wall of the positioning cavity, and the soft rubber part passes through the protective sleeve and abuts against the outer circumferential side of the rotating shaft.

[0012] Optionally, the rotating cover comprises:

[0013] A first cover body is provided with a first mounting cavity;

[0014] A second cover body is arranged in the first mounting cavity and is provided with the positioning cavity; and,

[0015] A limiting ring is arranged in the positioning cavity and located in the protective sleeve, and the limiting ring is used for accommodating the rotating shaft, and a soft glue part is arranged on the inner circumferential wall of the limiting ring and abuts against the outer circumferential side of the rotating shaft.

[0016] Optionally, a plurality of first slits are arranged on the limiting ring and are distributed in a circumferential direction, and the plurality of first slits separate the limiting ring into a plurality of limiting parts distributed in the circumferential direction.

[0017] The soft glue part is provided in plurality, and the plurality of soft glue parts are arranged on the plurality of limiting parts.

[0018] Optionally, a gap is formed between the limiting ring and the inner circumferential wall of the second cover body, and the protective sleeve is arranged in the gap.

[0019] Optionally, the protective sleeve has elasticity of expansion or contraction in a radial direction.

[0020] Optionally, the protective sleeve is provided with a second slit, and the second slit penetrates through opposite ends of the protective sleeve.

[0021] Optionally, the protective sleeve is provided with a notch, and the protective sleeve is recessed inward to form a protruding structure abutting against the outer circumferential side of the rotating shaft, and the protruding structure is arranged between the second slit and the notch.

[0022] Optionally, the protective sleeve comprises:

[0023] a planar section;

[0024] a first arc-shaped section connected to one end of the planar section; and

[0025] a second arc-shaped section connected to the other end of the planar section, and the second slit is arranged between the first arc-shaped section and the second arc-shaped section.

[0026] The utility model discloses a second aspect provides an electronic device, comprising the knob assembly and rotating shaft that any one of the above is described, the knob assembly is assembled on the rotating shaft.

[0027] Compared with the related art, the utility model discloses a knob assembly and electronic device, and beneficial effects are that the protective sleeve is arranged between the rotating shaft and the inner circumferential wall of the positioning cavity, so that the protective sleeve can avoid the spin cover being opened and cracked by the rotating shaft. Moreover, the spin cover part abuts against the outer circumferential side of the rotating shaft to realize interference assembly between the rotating shaft and the spin cover, so that the spin cover and the rotating shaft are partially and not circumferentially interference structure design, which can not only avoid the spin cover being opened and cracked due to too much interference, but also ensure that the spin cover and the rotating shaft are in close contact, avoiding the phenomenon that the spin cover is easy to fall off. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related art, the following will briefly introduce the drawings needed to be used in the embodiments or the related art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0029] Figure 1 is an assembly schematic view of the knob assembly and the rotating shaft provided by the embodiment of the present application;

[0030] Figure 2 is a structural schematic view of the knob assembly provided by an embodiment of the present application;

[0031] Figure 3 is Figure 2 an exploded view;

[0032] Figure 4 is a structural schematic view of the knob assembly provided by another embodiment of the present application;

[0033] Figure 5 is Figure 4 an exploded view;

[0034] Figure 6 is Figure 4 an assembly schematic view of the second cover body, the soft rubber part and the limiting ring in

[0035] Figure 7 is a structural schematic view of the protective sleeve provided by the embodiment of the present application.

[0036] In the drawings, various reference signs represent: 1, a screw cap; 11, a first cover body; 111, a first mounting cavity; 12, a second cover body; 121, a positioning cavity; 13, a soft rubber part; 14, a limiting ring; 141, a first gap; 142, a limiting part; 2, a protective sleeve; 21, a second gap; 22, a protruding structure; 23, a flat section; 24, a first arc section; 25, a second arc section; 26, a notch; 10, a knob assembly; 20, a knob shaft. DETAILED DESCRIPTION

[0037] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0038] In the description of the utility model, it is understood that the directions or positional relations indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential" and "radial" are based on the directions or positional relations shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model in that the indicated devices or elements must have a particular orientation, construction and operation.

[0039] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0040] Embodiment:

[0041] Please refer to Figure 1 The utility model embodiment provides a kind of electronic equipment, including knob assembly 10 and rotating shaft, knob assembly 10 is assembled on rotating shaft, and rotating shaft is rotated by knob assembly 10 drive.

[0042] Please refer to Figures 1 to 7 Knob assembly 10 includes screw cap 1 and protective sleeve 2, screw cap 1 is equipped with the positioning cavity 121 for accommodating rotating shaft;Protective sleeve 2 is assembled in positioning cavity 121 and is used to be set on the outer circumferential side of rotating shaft, and screw cap 1 part is inserted into protective sleeve 2 and is abutted to the outer circumferential side of rotating shaft, to form the interference fit between rotating shaft and screw cap 1.

[0043] Protective sleeve 2 is arranged between rotating shaft and the inner circumferential wall of positioning cavity 121, so that protective sleeve 2 can avoid that screw cap 1 is opened and cracked by rotating shaft;Moreover, screw cap 1 part is abutted to the outer circumferential side of rotating shaft to realize the interference fit between rotating shaft and screw cap 1, so that the structure design of partial interference between screw cap 1 and rotating shaft instead of circumferential interference can not only avoid that screw cap 1 is opened and cracked due to the stress of more interference amount, but also can ensure that the contact between screw cap 1 and rotating shaft is relatively close, to avoid the phenomenon that screw cap 1 is easily dropped.

[0044] Protective sleeve 2 has radial expansion or contraction elasticity, which is beneficial to prevent rotating shaft from opening and cracking screw cap 1.

[0045] Please refer to Figure 7In some embodiments, the protective sleeve 2 is provided with a second slit 21 penetrating through opposite ends of the protective sleeve 2, so that the protective sleeve 2 has elasticity of radial expansion or contraction. According to actual needs, the protective sleeve 2 can be a steel ring.

[0046] It should be noted that, in other embodiments, the protective sleeve 2 can be made of an elastic material.

[0047] In the embodiments of the utility model, the rotary cap 1 can abut against only a part of the outer circumferential side of the rotating shaft, or multiple parts can abut against the outer circumferential side of the rotating shaft respectively; the rotary cap 1 can extend into the protective sleeve 2 through the protective sleeve 2, or can be directly partially arranged in the protective sleeve 2.

[0048] Please refer to Figure 2 and Figure 3 In some embodiments, the rotary cap 1 comprises a first cap body 11, a second cap body 12 and a soft rubber part 13, the first cap body 11 is provided with a first mounting cavity 111; the second cap body 12 is arranged in the first mounting cavity 111 and is provided with a positioning cavity 121; the soft rubber part 13 is arranged on the inner circumferential wall of the positioning cavity 121, the soft rubber part 13 penetrates through the protective sleeve 2 and abuts against the outer circumferential side of the rotating shaft, so that the rotating shaft and the rotary cap 1 are in interference fit. Wherein, the protective sleeve 2 is matched with the rotating shaft, and the rotating shaft is located in the protective sleeve 2; the soft rubber part 13 is arranged protruding relative to the surface of the inner circumferential wall of the positioning cavity 121, and the soft rubber part 13 extends into the protective sleeve 2 through the second slit 21 on the protective sleeve 2 and abuts against the outer circumferential side of the rotating shaft, so that the rotating shaft and the rotary cap 1 are in interference fit.

[0049] Please refer to Figure 4 , Figure 5 and Figure 6 In some embodiments, the rotary cap 1 comprises a first cap body 11, a second cap body 12 and a limiting ring 14, the first cap body 11 is provided with a first mounting cavity 111; the second cap body 12 is arranged in the first mounting cavity 111 and is provided with a positioning cavity 121; the limiting ring 14 is arranged in the positioning cavity 121 and is located in the protective sleeve 2, the limiting ring 14 is used for accommodating the rotating shaft, a soft rubber part 13 is arranged on the inner circumferential wall of the limiting ring 14, and the soft rubber part 13 abuts against the outer circumferential side of the rotating shaft, so that the rotating shaft and the rotary cap 1 are in interference fit. Wherein, the protective sleeve 2 is arranged on the outer side of the limiting ring 14, so that the protective sleeve 2 can block the limiting ring 14 from being opened and cracked by the rotating shaft.

[0050] Please refer to Figure 5 and Figure 6The limiting ring 14 is provided with a plurality of first slits 141 distributed along the circumference, and the plurality of first slits 141 separates the limiting ring 14 into a plurality of limiting portions 142 distributed along the circumference; the plurality of soft glue portions 13 are provided, and the plurality of soft glue portions 13 are arranged on the plurality of limiting portions 142, so that the plurality of soft glue portions 13 abut on the outer circumferential side of the rotating shaft, which can improve the interference amount and ensure the assembly tightness between the rotating cap 1 and the rotating shaft.

[0051] The number of the first slits 141 and the number of the soft glue portions 13 are set according to actual needs, for example, the first slits 141 can be provided with two, three, four, etc., and the soft glue portions 13 can be provided with two, three, four, etc. Among them, in one specific example, the first slits 141 are provided with two, and the two first slits 141 separate the limiting ring 14 into two limiting portions 142, one of which is provided with one soft glue portion 13, and the other of which is provided with three soft glue portions 13, and the four soft glue portions 13 are distributed equidistantly along the circumference.

[0052] Please refer to Figure 4 and Figure 5 , the limiting ring 14 has a gap with the inner circumferential wall of the second cover body 12, and the protective sleeve 2 is arranged in the gap, so that the protective sleeve 2 is arranged on the outer side of the limiting ring 14, which is convenient for installation and disassembly.

[0053] Please refer to Figure 7 , the protective sleeve 2 is provided with a notch 26, and the protective sleeve 2 is recessed inward to form a protruding structure 22 abutting on the outer circumferential side of the rotating shaft, and the protruding structure 22 is arranged between the second slit 21 and the notch 26. The notch 26 is arranged to facilitate the bending forming of the protruding structure 22. Moreover, the protective sleeve 2 has elasticity, which is convenient for disassembly and improves the service life and reliability.

[0054] Please refer to Figure 7 , the protective sleeve 2 includes a flat section 23, a first arc section 24 and a second arc section 25, the first arc section 24 is connected to one end of the flat section 23; the second arc section 25 is connected to the other end of the flat section 23, and the second slit 21 is arranged between the first arc section 24 and the second arc section 25, thereby improving the elasticity of the protective sleeve 2. Moreover, the outer circumferential side surface of the rotating shaft is provided with a flat area, and the flat area on the rotating shaft cooperates with the flat section 23, and the arc section cooperates with the arc area on the rotating shaft, which is conducive to preventing the protective sleeve 2 from rotating relative to the rotating shaft.

[0055] According to actual needs, the first arc section 24 and the second arc section 25 away from the one end of the flat section 23 are provided with a notch 26 and a protruding structure 22, and the flat section 23 is arranged opposite to the second slit 21.

[0056] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A knob assembly, characterized by The application relates to a rotating knob assembly. The rotating knob assembly comprises: a rotating cap provided with a positioning cavity for accommodating a rotating shaft; a protective sleeve assembled in the positioning cavity and sleeved on the outer circumferential side of the rotating shaft, the rotating cap partially extends into the protective sleeve and abuts against the outer circumferential side of the rotating shaft to form an interference fit between the rotating shaft and the rotating cap.

2. The knob assembly of claim 1, wherein, The rotating cap comprises: a first cap body provided with a first mounting cavity; a second cap body arranged in the first mounting cavity and provided with the positioning cavity; and a soft rubber part arranged on the inner circumferential wall of the positioning cavity, the soft rubber part penetrates through the protective sleeve and abuts against the outer circumferential side of the rotating shaft.

3. The knob assembly of claim 1, wherein, The rotating cap comprises: a first cap body provided with a first mounting cavity; a second cap body arranged in the first mounting cavity and provided with the positioning cavity; and a limiting ring arranged in the positioning cavity and located in the protective sleeve, the limiting ring is used for accommodating the rotating shaft, a soft rubber part is arranged on the inner circumferential wall of the limiting ring and abuts against the outer circumferential side of the rotating shaft.

4. The knob assembly of claim 3, wherein, The limiting ring is provided with a plurality of first slits which are distributed in a circumferential direction, the first slits divide the limiting ring into a plurality of limiting parts which are distributed in a circumferential direction; the soft rubber part is provided with a plurality of soft rubber parts which are arranged on the limiting parts.

5. The knob assembly of claim 3, wherein, The limiting ring and the inner circumferential wall of the second cap body have a gap, and the protective sleeve is arranged in the gap.

6. The knob assembly of claim 1, wherein, The protective sleeve has elasticity in radial expansion or contraction.

7. The knob assembly of claim 6, wherein, The protective sleeve is provided with a second slit which penetrates through opposite ends of the protective sleeve.

8. The knob assembly of claim 7, wherein, The protective sleeve is provided with a notch, and the protective sleeve is inwardly recessed to form a protruding structure which abuts against the outer circumferential side of the rotating shaft, the protruding structure is arranged between the second slit and the notch.

9. The knob assembly of claim 7, wherein, The protective sleeve comprises: a flat section; a first arc-shaped section connected to one end of the flat section; and a second arc-shaped section connected to the other end of the flat section, and the second slit is arranged between the first arc-shaped section and the second arc-shaped section.

10. An electronic device, comprising: The application also relates to a rotating knob assembly and a rotating shaft, the rotating knob assembly is assembled on the rotating shaft.

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