Rotary control device and earphone

Abstract

The application provides a rotating control device and earphone. The rotating control device comprises a fixing frame, a rotating assembly and a control member. The fixing frame is provided with a circular groove, and the peripheral wall of the circular groove is provided with a clamping groove. The rotating assembly comprises a rotating member and an elastic abutting member. The rotating member is located in the circular groove and is rotationally connected with the fixing frame. The outer side of the rotating member is provided with at least three abutting portions. The at least three abutting portions are arranged along the circumferential direction of the circular groove, and each abutting portion is slidingly abutted to the peripheral wall of the circular groove. The elastic abutting member is connected to the rotating member. The elastic abutting member is elastically clamped in the clamping groove when the rotating member stops rotating. The elastic abutting member is elastically abutted to the peripheral wall of the circular groove when the rotating member rotates. The control member is connected to the rotating member, so that the control member is used to drive the rotating assembly to rotate. Since the at least three forces are uniformly arranged on the outer side of the rotating member, the stability of the rotating member during rotation is improved, which helps to improve the experience of the user when adjusting the volume or brightness.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of headsets, and particularly relates to a rotary control device and a headset. BACKGROUND

[0002] With the development of headsets, various headsets appear on the market, and people's requirements for headsets are becoming more and more strict. People pursue simplicity while meeting the functional requirements. The volume of the headset is small, and it is difficult to realize a complex mechanical structure. The gear mechanism has the advantages of small size, stable transmission and low price. Many headsets on the market also use gear structures to meet their functional requirements. For the volume or brightness adjustment of the headset, the traditional technology adjusts through the rotation of the circular gear, for example, the patent with the publication number CN213818126U. However, since the outer side of the circular gear only contacts the outside through one contact point, the circular gear will shake when rotating, which will affect the user's experience when adjusting. SUMMARY

[0003] The present application aims to overcome the deficiencies in the prior art and provide a rotary control device and a headset with stable transmission.

[0004] The purpose of the present application is achieved by the following technical solutions:

[0005] A rotary control device comprises:

[0006] A fixed frame is formed with a circular groove, and the peripheral wall of the circular groove is formed with a clamping groove;

[0007] A rotating assembly comprises a rotating member and an elastic abutting member connected to each other. The rotating member is located in the circular groove and is rotationally connected to the fixed frame. The outer side of the rotating member is provided with at least three abutting portions. The at least three abutting portions are arranged along the circumferential direction of the circular groove, and each abutting portion is slidingly abutted to the peripheral wall of the circular groove. The elastic abutting member is elastically clamped in the clamping groove when the rotating member stops rotating, and the elastic abutting member is slidingly connected to the peripheral wall of the circular groove when the rotating member rotates; and

[0008] A control member is connected to the rotating member, so that the control member is used to drive the rotating assembly to rotate.

[0009] In one embodiment, the shape of the rotating member is a Lohner triangle, so that the outer side of the rotating member forms three uniformly distributed abutting portions.

[0010] In one embodiment, the rotating member is further formed with a deformation groove, and the deformation groove is correspondingly arranged with the elastic abutting member.

[0011] In one of the embodiments, the rotating assembly and the control member are respectively located at opposite sides of the fixing frame, the fixing frame is formed with a clearance hole, the rotating control device further comprises a fastener, the fastener is arranged through the clearance hole, and one end of the fastener is connected with the control member, and the other end of the fastener is abutted against the rotating member.

[0012] In one of the embodiments, the control member is formed with a threaded hole, and the end of the fastener, which is away from the rotating member, is arranged in the threaded hole and is threadedly connected with the control member.

[0013] In one of the embodiments, a gap exists between the side of the fixing frame, which is away from the rotating member, and the control member.

[0014] In one of the embodiments, the side of the fixing frame, which is away from the rotating member, is provided with an abutting portion, the abutting portion is arranged along the circumference of the fixing frame, and the abutting portion is abutted against the control member, so that a gap exists between the side of the fixing frame, which is away from the rotating member, and the control member.

[0015] In one of the embodiments, the abutting portion is arranged around the fixing frame.

[0016] In one of the embodiments, the surface of the elastic abutting member, which is in contact with the fixing frame, is a circular arc surface.

[0017] An earphone comprising the rotating control device of any one of the above embodiments.

[0018] Compared with the prior art, the present application has at least the following advantages:

[0019] The rotating control device and the earphone described above, since each abutting portion of the rotating member is slidably abutted against the circumferential wall of the circular groove, the circumferential wall of the circular groove plays a role of stabilizing the rotating member, i.e., the fixing frame plays a role of suppressing the shaking of the rotating member, and since the at least three abutting portions of the rotating member are arranged along the circumference of the circular groove, the at least three forces of the fixing frame acting on the rotating member are uniformly arranged on the outside of the rotating member, thereby improving the stability of the rotating member when rotating, and helping to improve the experience of a user when adjusting the volume or brightness. Since the rotating member does not have the tooth groove of the conventional gear, the structure of the rotating member is simple, thereby reducing the processing cost of the rotating control device. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some of the embodiments of the present application, and therefore should not be regarded as a limitation on the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0021] Figure 1 A structural schematic diagram of an earphone according to an embodiment;

[0022] Figure 2 A structural schematic diagram of a rotation control device of the earphone shown in Figure 1

[0023] A sectional view along line A-A of the rotation control device of the earphone shown in Figure 3 Figure 2 A sectional view along line C-C of the rotation control device of the earphone shown in

[0024] Figure 4 A sectional view along line C-C of the rotation control device of the earphone shown in Figure 3

[0025] A structural schematic diagram of another rotation control device of the earphone shown in Figure 5 Figure 1 A sectional view along line C-C of the rotation control device of the earphone shown in

[0026] Figure 6 A sectional view along line C-C of the rotation control device of the earphone shown in Figure 5 DETAILED DESCRIPTION

[0027] For the purposes of promoting an understanding of the principles of the application, reference will now be made to the embodiments illustrated in the drawings. It is expressly understood that the drawings are presented for the purposes of illustration and description only and are not intended as a definition of the limits of the application. As illustrated in the accompanying drawings, the application encompasses a number of embodiments.

[0028] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting. It is also possible that the use of "for example," "may" and "might" herein indicates that one or more implementations of a particular feature covers the specific instance (i.e. that the feature can be implemented to cover the specific instance) and that the feature can also cover other instances (i.e. that the feature can be implemented to cover other instances). It is to be understood that the terms "including", "comprising", "consisting" and "consisting essentially of" to be used herein are open-ended, and also include the more restrictive terms "decomprising" and "exemplary". The terms "and / or" and "at least one of" used herein are to be interpreted as inclusive, i.e. the terminology "at least one of A and / or B" means A or B or both. When used in the context of a list of items, the terminology "at least one of A, B, and / or C" means A or B or C or any combination of these items.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting. The use herein of terms such as "comprise", "comprises", "comprising", "containing", "contains", "contain" or "including" or "includes" is not to be interpreted as excluding additional elements or steps. The use herein of the term "or" is to be interpreted as inclusive, i.e. the term "A or B" means A or B or both. When used in the context of a list of items, the terminology "at least one of A, B, and / or C" means A or B or C or any combination of these items. The use herein of the term "about" is to be interpreted as being near to or approximately 2% of the value of the term it is modifying. Unless otherwise defined, all other terms used herein have the same meaning as they would to a person skilled in the art.

[0030] ​​​This application provides a rotation control device, including a fixed frame, a rotation assembly, and a control component. The fixed frame has a circular groove, and the peripheral wall of the circular groove has a snap-fit ​​groove. The rotation assembly includes a rotating member and an elastic abutment member. The rotating member is located in the circular groove and rotatably connected to the fixed frame. At least three abutment portions protrude from the outer side of the rotating member, and the at least three abutment portions are arranged along the circumference of the circular groove, with each abutment portion sliding against the peripheral wall of the circular groove. The elastic abutment member is connected to the rotating member. When the rotating member stops rotating, the elastic abutment member elastically snaps into the snap-fit ​​groove, and when the rotating member rotates, the elastic abutment member elastically abuts against the peripheral wall of the circular groove. The control component is connected to the rotating member so that the control component can drive the rotation assembly to rotate. This application also provides an earphone, including the above-described rotation control device.

[0031] The aforementioned rotation control device and headphones, because the contact parts of the rotating component slide against the circumferential wall of the circular groove, allow the circumferential wall of the circular groove to stabilize the rotating component, thus enabling the fixing frame to suppress the shaking of the rotating component. Furthermore, because at least three contact parts of the rotating component are arranged along the circumference of the circular groove, at least three forces exerted by the fixing frame on the rotating component are evenly distributed on the outer side of the rotating component, thereby improving the stability of the rotating component during rotation and enhancing the user's experience when adjusting volume or brightness. Since the rotating component lacks the toothed grooves of traditional gears, its structure is simplified, thereby reducing the manufacturing cost of the rotation control device.

[0032] To better understand the technical solution and beneficial effects of this application, the following detailed description is provided in conjunction with specific embodiments:

[0033] like Figure 1 and Figure 2 As shown, in one embodiment, the earphone 10 includes a rotation control device 10a. The rotation control device 10a includes a fixing frame 100, a rotation assembly 300, and a control member 500. The fixing frame 100 has a circular groove 101, and the peripheral wall of the circular groove 101 has a snap-fit ​​groove 102. The rotation assembly 300 includes a rotating member 310 and an elastic abutment member 320. The rotating member 310 is located in the circular groove 101 and is rotatably connected to the fixing frame 100. At least three abutment portions 310a are protruding from the outer side of the rotating member 310. The at least three abutment portions 310a are arranged along the circumference of the circular groove 101, and each abutment portion 310a slides against the peripheral wall of the circular groove 101. The elastic abutment member 320 is connected to the rotating member 310. When the rotating member 310 stops rotating, the elastic abutment member 320 is elastically snapped into the snap-fit ​​groove 102. When the rotating member 310 rotates, the elastic abutment member 320 elastically abuts against the peripheral wall of the circular groove 101. The control element 500 is connected to the rotating element 310 so that the control element 500 can drive the rotating assembly 300 to rotate.

[0034] like Figures 1 to 3As shown, in this embodiment, the rotating member 310 is connected to a rotary encoder or potentiometer so that the rotating member 310 rotates synchronously with the rotary encoder or potentiometer, thereby adjusting the volume or brightness of the headphones 10 through the rotation of the rotating member 310. When adjusting the volume or brightness of the headphones 10, the control member 500 is rotated so that the rotating member 310 and the rotary encoder or potentiometer rotate synchronously. At this time, each contact part 310a slides against the peripheral wall of the circular groove 101, and the elastic contact member 320 slides along the peripheral wall of the circular groove 101. When the elastic contact member 320 is aligned with the locking groove 102, the elastic contact member 320 elastically recovers and locks into the locking groove 102. The sound and vibration generated when the elastic contact member 320 contacts the groove wall of the locking groove 102 provide a prompt that the rotating member 310 has rotated to the correct position, that is, a prompt that the volume or brightness has been adjusted to the correct position. It should be noted that the control principle of the rotary encoder and potentiometer for the circuit is conventional technology and will not be described in detail here.

[0035] The aforementioned earphone 10 and rotation control device 10a, because each contact portion 310a of the rotating member 310 slides against the peripheral wall of the circular groove 101, allows the peripheral wall of the circular groove 101 to stabilize the rotating member 310, thus enabling the fixing frame 100 to suppress the shaking of the rotating member 310. Furthermore, because at least three contact portions 310a of the rotating member 310 are arranged circumferentially along the circular groove 101, the at least three forces exerted by the fixing frame 100 on the rotating member 310 are evenly distributed on the outer side of the rotating member 310, thereby improving the stability of the rotating member 310 during rotation and enhancing the user's experience when adjusting volume or brightness. Since the rotating member 310 lacks the toothed grooves of a traditional gear, its structure is simple, thereby reducing the manufacturing cost of the rotation control device 10a.

[0036] like Figure 2 As shown, in one embodiment, the rotating member 310 is shaped like a Reuleaux triangle, so that three evenly distributed contact portions 310a are formed on the outer side of the rotating member 310. In this embodiment, the rotating member 310 is shaped like a Reuleaux triangle, the center of the rotating member 310 is the center of rotation, and the three vertices of the rotating member 310 are all contact portions 310a, so that three evenly distributed contact portions 310a are formed on the outer side of the rotating member 310. When the rotating member 310 rotates, the movement trajectories of the three contact portions 310a of the rotating member 310 are all the same, and the three contact portions 310a of the rotating member 310 slide along the peripheral wall of the circular groove 101. Since the movement trajectories of the three contact portions 310a of the rotating member 310 are all the same, the force on the three contact portions 310a remains constant when sliding along the peripheral wall of the circular groove 101, thereby improving the stability of the rotating member 310 during rotation and helping to improve the user's experience when adjusting volume or brightness.

[0037] likeFigure 2 As shown, in one embodiment, the elastic abutting member 320 is a plastic structure, so that the elastic abutting member 320 has elasticity. As shown, Figure 5 As shown, in another embodiment, the elastic abutting member 320 is a metal spring, so that the elastic abutting member 320 has elasticity, and the fatigue strength of the elastic abutting member 320 is improved, so that the abutting force between the elastic abutting member 320 and the circumferential wall of the circular groove 101 is stable, that is, the control member 500 is stable, which helps to improve the experience of the user when adjusting the volume or brightness.

[0038] Further, the elastic abutting member 320 includes a metal elastic part 321 connected to the rotating member 310 and a flexible part 322 covering the metal elastic part 321, so that the metal elastic part 321 is flexibly abutted to the circumferential wall of the circular groove 101 through the flexible part 322, which inhibits the metal elastic part 321 from wearing the circumferential wall of the circular groove 101, thereby ensuring the tightness of the abutment between the elastic abutting member 320 and the fixed frame 100, and improving the stability of the rotating member and the control member 500 when rotating.

[0039] As shown, Figure 2 and Figure 5 As shown, in one embodiment, the rotating member 310 is further formed with a deformation groove 311 corresponding to the elastic abutting member 320. In this embodiment, when the elastic abutting member 320 is moved out of the clamping groove 102, the elastic abutting member 320 is deformed towards the deformation groove 311, so that the length of the elastic abutting member 320 extending out of the rotating member 310 is reduced, thereby enabling the elastic abutting member 320 to abut to the circumferential wall of the circular groove 101, avoiding the elastic abutting member 320 from hindering the rotation of the rotating member 310, and ensuring the completion of the rotation of the rotating member 310.

[0040] As shown, Figure 3 As shown, in one embodiment, the rotating assembly 300 and the control member 500 are respectively located on opposite sides of the fixed frame 100, the fixed frame 100 is formed with an avoiding hole 103, and the rotating control device 10a further includes a fastener 700, the fastener 700 is arranged through the avoiding hole 103, one end of the fastener 700 is connected to the control member 500, and the other end of the fastener 700 is abutted to the rotating member 310. In this embodiment, since the fastener 700 is arranged through the avoiding hole 103, and the two ends of the fastener 700 are respectively connected to the control member 500 and the rotating member 310, the control member 500 and the rotating member 310 are respectively rotatably connected to the opposite sides of the fixed frame 100, and the displacement of the control member 500 and the rotating member 310 is avoided.

[0041] As shown, Figure 3As shown in the drawings, in one of the embodiments, the control member 500 is formed with a threaded hole 501, and the fastener 700 is located in the threaded hole 501 and is screwed with the control member 500, so as to improve the convenience of connecting the fastener 700 with the control member 500 and the convenience of separating the fastener 700 from the control member 500. In the embodiment, the fastener 700 is a threaded fastener 700, such as a screw, a bolt or other existing threaded fastener 700.

[0042] As shown in the drawings, Figure 5 and Figure 6 As shown in the drawings, in one of the embodiments, the number of the fasteners 700, the relief holes 103 and the threaded holes 501 is two, and the two fasteners 700, the two relief holes 103 and the two threaded holes 501 are arranged one by one, each fastener 700 is arranged in the corresponding relief hole 103, one end of each fastener 700 abuts against the fixed frame 100, and the other end of each fastener 700 is located in the corresponding threaded hole 501 and is screwed with the control member 500. In the embodiment, the two fasteners 700 connect the control member 500 and the rotating member 310, widen the support point of the rotating member 310, shorten the distance between each abutting portion 310a and the support point, and inhibit the shaking of the rotating member 310 during rotation, which helps to improve the stability of the rotating member 310 during rotation and further helps to improve the experience of the user during adjustment.

[0043] It can be understood that there is a gap between the fastener 700 and the threaded hole 501, so that the fastener 700 and the control member 500 are relatively easy to move, and with the increase of the rotation times of the control member 500 and the rotating member 310, the relative displacement of the fastener 700 and the control member 500 will increase, so that the connection tightness of the control member 500 and the rotating member 310 decreases, and further the control member 500 and the rotating member 310 are relatively easy to shake during rotation, which greatly affects the experience of the user when rotating the rotary control device 10a during adjustment. Therefore, as shown in the drawings, Figure 4 As shown in the drawings, in one of the embodiments, the rotary control device 10a further comprises an elastic layer 900, the elastic layer 900 is wrapped on the fastener 700, and the elastic layer 900 is elastically abutted against the side wall of the fastener 700 and the hole wall of the threaded hole 501, so that the elastic layer 900 blocks the gap between the fastener 700 and the control member 500, effectively inhibits the relative displacement of the fastener 700 and the control member 500, avoids the shaking problem of the rotary control device 10a after multiple adjustments, and effectively improves the experience of the user when adjusting the rotary control device 10a. In the embodiment, the elastic layer 900 can be a silica gel layer, a rubber layer or other existing elastic structure.

[0044] It is understandable that during the process of screwing the fastener 700 into the threaded hole 501, the fastener 700 should stop screwing in when the resistance encountered during rotation reaches a predetermined value to avoid stripping of the fastener 700's threads. However, in order to ensure that the elastic layer 900 completely seals the gap between the fastener 700 and the control component 500, the elastic layer 900 covers the fastener 700 with a relatively large thickness. This results in that during the process of screwing the fastener 700 into the threaded hole 501, some of the elastic layer 900 on the fastener 700 that has already entered the threaded hole 501 is squeezed onto the fastener 700 that has not yet entered the threaded hole 501. This makes the elastic layer 900 on the fastener 700 that enters the threaded hole 501 thicker. Thus, as the screwing depth of the fastener 700 increases, the elastic resistance of the elastic layer 900 on the fastener 700 becomes increasingly greater. In order to ensure that the rotating component 310 is tightly connected to the control component 500 via the fastener 700, and to ensure that the control component 500 and the rotating component 310 rotate synchronously, even if the resistance encountered by the fastener 700 reaches a predetermined value, the fastener 700 needs to be screwed in continuously. This makes at least one of the fastener 700 and the control component 500 more prone to stripping, which in turn makes the connection stability between the fastener 700 and the control component 500 poor. When the control component 500 rotates a certain number of times, the stripped thread will break, causing the connection between the fastener 700 and the control component 500 to loosen. This makes the control component 500 and the rotating component 310 more prone to shaking when rotating, which is not conducive to improving the user's experience when adjusting the rotation control device 10a.

[0045] To avoid the problem of slipping teeth, such as Figure 4 As shown, in one embodiment, a chamfer 5011 for discharging adhesive is formed at the entrance of the threaded hole 501 to increase the size of the entrance of the threaded hole 501. In this embodiment, because the entrance size of the threaded hole 501 is larger, when the fastener 700 is screwed into the threaded hole 501, part of the elastic layer 900 on the fastener 700 will be squeezed to the chamfer 5011 to reduce the resistance of the elastic layer 900 to the fastener 700 and avoid the problem of stripping caused by the elastic layer 900. As the adhesive layer of the chamfer 5011 increases, part of the elastic layer 900 will be discharged out of the threaded hole 501 through the chamfer 5011 to reduce the resistance of the elastic layer 900 to the fastener 700 and avoid the problem of stripping caused by the elastic layer 900.

[0046] However, because the threaded hole 501 has a chamfer 5011 at the entrance, the number of thread turns in the threaded hole 501 is reduced, which in turn reduces the connection strength between the fastener 700 and the control component 500. The control component 500 and the rotating component 310 are more prone to shaking, which is not conducive to improving the user's experience when adjusting the rotation control device 10a.

[0047] Therefore, as Figure 4 As shown, in one embodiment, the rotation control device 10a further includes a snap-fit ​​member 200. A receiving hole 701 is formed at the end of the fastener 700 along its axial direction, and an annular limiting groove 702 is formed on the inner wall of the receiving hole 701 along the circumferential direction of the fastener 700. The snap-fit ​​member 200 is located within the threaded hole 501 and connected to the control member 500. A portion of the snap-fit ​​member 200 is located within the receiving hole 701, and the snap-fit ​​portion 220 of the snap-fit ​​member 200 is snapped into the annular limiting groove 702. In this embodiment, when the snap-fit ​​member 200 enters the receiving hole 701, it abuts against the hole wall of the receiving hole 701. When the snap-fit ​​member 200 enters the receiving hole 701 to a certain depth, the snap-fit ​​portion 220 of the snap-fit ​​member 200 aligns with the annular limiting groove 702 and enters the annular limiting groove 702, so that the snap-fit ​​portion 220 of the snap-fit ​​member 200 is snapped into the annular limiting groove 702, thereby improving the connection strength between the control member 500 and the fastener 700 and effectively suppressing the shaking problem of the control member 500 and the rotating member 310 during rotation. Furthermore, when the snap-fit ​​part 220 of the snap-fit ​​part 200 snaps into the annular limiting groove 702, it will collide with the groove wall of the annular limiting groove 702 and produce a sound. This sound can prompt the user to tighten the fastener 700 into place, so that the user can stop rotating the fastener 700 in time, avoiding the problem of over-tightening the fastener 700, thereby avoiding the stripping of the thread, thus suppressing the problem of loosening of the connection between the fastener 700 and the control part 500, and suppressing the problem of the control part 500 and the rotating part 310 being prone to shaking when rotating, which is beneficial to improving the user's experience when adjusting the rotation control device 10a.

[0048] like Figure 4 As shown, the snap-fit ​​component 200 further includes a connecting portion 210 and a snap-fit ​​portion 220. The connecting portion 210 is located within the threaded hole 501 and connected to the control component 500. The snap-fit ​​portion 220 is located within the threaded hole 501. The first end of the snap-fit ​​portion 220 is connected to the connecting portion 210, and the snap-fit ​​portion 220 forms an angle with the connecting portion 210. The snap-fit ​​portion 220 is snapped into the annular limiting groove 702. In this embodiment, when the snap-fit ​​portion 220 enters the receiving hole 701, the second end of the snap-fit ​​portion 220 is abutted and moves closer to the connecting portion 210, that is, the angle between the snap-fit ​​portion 220 and the connecting portion 210 decreases when the snap-fit ​​portion 220 enters the receiving hole 701. When the second end of the snap-fit ​​portion 220 is aligned with the annular limiting groove 702, the snap-fit ​​portion 220 elastically recovers, so that the second end of the snap-fit ​​portion 220 is limited within the annular limiting groove 702.

[0049] It can be understood that, since the clamping piece 200 is clamped in the annular limiting groove 702 of the fastener 700, the user cannot press the clamping part 220 to make the clamping part 220 disengage from the limitation of the annular limiting groove 702, thereby the user cannot separate the clamping piece 200 from the fastener 700. When the rotary control device 10a is maintained, the fastener 700 needs to be disassembled, and once the fastener 700 is disassembled, the clamping piece 200 and the fastener 700 will be forcibly separated, which will cause the clamping piece 200 to be damaged, thereby causing the clamping piece 200 to lose the connection function after the subsequent tightening of the fastener 700, and thereby causing the control piece 500 and the rotating piece 310 to be more prone to shaking during rotation, which is not conducive to improving the user's experience when adjusting the rotary control device 10a.

[0050] In order to enable the clamping piece 200 to continuously function, as shown in Figure 4 Further, the accommodation hole 701 is formed with a sliding-out groove 703 along the axial direction of the fastener 700, and the sliding-out groove 703 extends to the opening of the annular limiting groove 702 and the accommodation hole 701, respectively. Further, the clamping piece 200 further comprises a limiting part 230, the connecting part 210 is arranged in the control piece 500 and is rotationally connected with the control piece 500, so that the clamping piece 200 is rotationally connected with the control piece 500, the limiting part 230 is connected with the connecting part 210, and the limiting part 230 abuts against the side of the control piece 500 away from the rotating piece 310, so that the user can rotate the limiting part 230. In this embodiment, the clamping part 220 of the clamping piece 200 is aligned with the sliding-out groove 703 when the clamping piece 200 is rotated to a predetermined angle, so as to avoid the slot wall of the annular limiting groove 702 limiting the movement of the clamping part 220, thereby enabling the clamping piece 200 to be pulled out of the annular limiting groove 702 and the accommodation hole 701, i.e. enabling the clamping piece 200 to be pulled out of the fastener 700, thereby avoiding the problem of the clamping piece 200 being damaged when the fastener 700 is disassembled. When the fastener 700 is connected with the clamping piece 200, if the clamping part 220 is not aligned with the annular limiting groove 702, i.e. the clamping part 220 is not clamped in the annular limiting groove 702, rotate the limiting part 230 to align the clamping part 220 with the annular limiting groove 702, thereby enabling the clamping part 220 to be clamped in the annular limiting groove 702.

[0051] It can be understood that, since the sliding-out groove 703 is inside the fastener 700, the user cannot see whether the clamping portion 220 is aligned with the sliding-out groove 703 when pulling out the clamping piece 200 from the fastener 700, and only by repeatedly trying to pull out the clamping piece 200 can the user determine whether the clamping portion 220 is aligned with the sliding-out groove 703, which will cause the clamping piece 200 to be deformed more times, more easily cause the elastic recovery ability of the clamping piece 200 to decrease, and then cause the clamping force of the clamping piece 200 clamped in the annular limiting groove 702 to decrease, that is, cause the connection strength of the clamping piece 200 and the fastener 700 to decrease, and then cause the control piece 500 and the rotating piece 310 to more easily shake when rotating, which is not conducive to improving the user's experience when adjusting the rotary control device 10a. As shown in Figure 4 Further, the sliding-out groove 703 and the annular limiting groove 702 have a depth difference, that is, the depth of the sliding-out groove 703 is inconsistent with the depth of the annular limiting groove 702, so that when the clamping portion 220 moves from the annular limiting groove 702 to the sliding-out groove 703, the included angle between the clamping portion 220 and the connecting portion 210 will change, and then the reaction force acting on the clamping portion 220 will change, and then the clamping piece 200 will vibrate and / or make a sound to prompt that the clamping portion 220 is successfully aligned with the sliding-out groove 703. At this time, the user can directly pull out the clamping piece 200, reducing the number of deformations of the clamping piece 200, which helps to ensure the connection strength of the clamping piece 200 and the fastener 700.

[0052] It can be understood that different users have different adjustment forces, that is, there are differences in the most comfortable adjustment forces of different users, however, the conventional clamping manner of the clamping piece 200 and the fastener 700 will cause the connection tightness of the fastener 700 and the control piece 500 to be unadjustable, and then the user cannot make personalized adjustment of the adjustment force, which is not conducive to improving the adaptability of the rotary control device 10a. Therefore, as shown in Figure 4As shown, in one of the embodiments, the rotary control device 10a further comprises an elastic washer 400 sleeved on the connecting portion 210, and the opposite sides of the elastic washer 400 are in elastic abutment with the limiting portion 230 and the side of the control member 500 away from the rotating member 310 respectively, so that the elastic force of the elastic washer 400 affects the force required for rotating the control member 500. The number of the annular limiting grooves 702 is multiple, and the multiple annular limiting grooves 702 are arranged along the axial direction of the fastener 700, the slide-out groove 703 extends to each annular limiting groove 702, and the clamping portion 220 of the clamping member 200 is clamped in one of the annular limiting grooves 702. In this embodiment, the elastic washer 400 can be a silica gel washer, a rubber washer or other existing elastic washers 400. Since the multiple annular limiting grooves 702 are arranged along the axial direction of the fastener 700, the compression amount of the elastic washer 400 is different when the clamping portion 220 is clamped in different annular limiting grooves 702, and thus the elastic washer 400 has different elastic forces when the clamping portion 220 is clamped in different annular limiting grooves 702. Since the elastic force of the elastic washer 400 affects the force required for rotating the control member 500, the adjusting force of the control member 500 can be adjusted to meet the needs of different users for the adjusting force.

[0053] As shown in the Figure 3 embodiment, the side of the fixed frame 100 away from the rotating member 310 has a gap with the control member 500, so as to reduce the contact area between the fixed frame 100 and the control member 500, and thus reduce the resistance of the fixed frame 100 to the control member 500, which helps to improve the smoothness of the rotation of the control member 500.

[0054] As shown in the Figure 3 embodiment, further, the side of the fixed frame 100 away from the rotating member 310 is provided with an abutting portion 110 arranged along the circumferential direction of the fixed frame 100, and the abutting portion 110 abuts against the control member 500, so that the side of the fixed frame 100 away from the rotating member 310 has a gap with the control member 500. Still further, the abutting portion 110 is arranged around the fixed frame 100, so that the abutting portion 110 controls the force of the control member 500 to be more uniform, and thus improves the stability of the control member 500 and the rotating member 310 during rotation.

[0055] As shown in the Figure 2As shown, in one of the embodiments, the surface of the elastic abutting piece 320 in contact with the fixed frame 100 is a circular arc surface, that is, the elastic abutting piece 320 is provided with a circular arc surface, the circular arc surface is in contact with the groove wall of the clamping groove 102 when the rotating piece 310 stops rotating, and the circular arc surface is in sliding connection with the groove wall of the circular groove 101 when the rotating piece 310 rotates. In this embodiment, since the surface of the elastic abutting piece 320 in contact with the fixed frame 100 is a circular arc surface, when the elastic abutting piece 320 is clamped into or moved out of the clamping groove 102, the force acting on the elastic abutting piece 320 gradually changes, so that the impact on the elastic abutting piece 320 is smaller, which is beneficial to improve the stability of the rotating piece 310 and the control piece 500, and helps to improve the experience of the user when adjusting the volume or brightness.

[0056] Compared with the prior art, the present application has at least the following advantages:

[0057] The rotating control device 10a described above, since the each abutting part 310a of the rotating piece 310 is in sliding abutment with the peripheral wall of the circular groove 101, the peripheral wall of the circular groove 101 plays a role in stabilizing the rotating piece 310, that is, the fixed frame 100 plays a role in suppressing the shaking of the rotating piece 310, and since the at least three abutting parts 310a of the rotating piece 310 are arranged along the circumferential direction of the circular groove 101, the at least three forces acting on the rotating piece 310 by the fixed frame 100 are uniformly distributed on the outside of the rotating piece 310, thereby improving the stability of the rotating piece 310 when rotating, and helping to improve the experience of the user when adjusting the volume or brightness. Since the rotating piece 310 does not have the tooth groove of the conventional gear, the structure of the rotating piece 310 is simple, thereby reducing the processing cost of the rotating control device 10a.

[0058] The above-described embodiments only express several embodiments of the present application, which are described in a more specific and detailed manner, but should not be understood as limiting the scope of the patent. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of protection of the present application. Therefore, the scope of protection of the present application patent should be subject to the appended claims.

Claims

1. A rotation control device, characterized in that, include: The fixing frame has a circular groove, and the peripheral wall of the circular groove has a snap-fit ​​groove. A rotating assembly includes a rotating member and an elastic abutment member connected together. The rotating member is located within the circular groove and rotatably connected to the fixed frame. At least three abutment portions protrude from the outer side of the rotating member, and the at least three abutment portions are arranged along the circumference of the circular groove, with each abutment portion slidingly abutting against the circumferential wall of the circular groove. The elastic abutment member is elastically engaged in the engaging groove when the rotating member stops rotating, and the elastic abutment member is slidably connected to the circumferential wall of the circular groove when the rotating member rotates. as well as A control element, connected to the rotating element, is used to drive the rotating assembly to rotate. The rotating component and the control component are located on opposite sides of the fixed frame. The fixed frame has a clearance hole. The rotating control device also includes a fastener. The fastener passes through the clearance hole, and one end of the fastener is connected to the control component, while the other end of the fastener abuts against the rotating component. The control component has a threaded hole, and the end of the fastener opposite to the rotating component is located in the threaded hole and is threadedly connected to the control component. The rotation control device further includes an elastic layer, which covers the fastener and elastically abuts against the side wall of the fastener and the wall of the threaded hole, respectively. A chamfer for discharging adhesive is formed at the entrance of the threaded hole; The rotation control device further includes a snap-fit ​​component. The end of the fastener has a receiving hole formed along the axial direction of the fastener, and the inner wall of the receiving hole has an annular limiting groove formed along the circumferential direction of the fastener. The snap-fit ​​component is located in the threaded hole and connected to the control component, and a portion of the snap-fit ​​component is located in the receiving hole. The snap-fit ​​component includes a connecting part and a snap-fit ​​part. The connecting part is located inside the threaded hole and connected to the control component. The snap-fit ​​part is located inside the threaded hole. The first end of the snap-fit ​​part is connected to the connecting part, and the snap-fit ​​part forms an angle with the connecting part. The snap-fit ​​part is snapped into the annular limiting groove. The receiving hole is formed with a sliding groove along the axial direction of the fastener, and the sliding groove extends to the annular limiting groove and the opening of the receiving hole respectively. The snap-fit ​​component further includes a limiting part, the connecting part passes through the control component and is rotatably connected to the control component, so that the snap-fit ​​component is rotatably connected to the control component, the limiting part is connected to the connecting part, and the limiting part abuts against the side of the control component opposite to the rotating component. The rotation control device further includes an elastic washer, which is sleeved on the connecting part, and the two opposite sides of the elastic washer elastically abut against the limiting part and the side of the control member away from the rotating part, respectively; there are multiple annular limiting grooves, which are spaced apart along the axial direction of the fastener, and the sliding groove extends to each of the annular limiting grooves, and the snap-fit ​​part of the snap-fit ​​member snaps into one of the annular limiting grooves.

2. The rotation control device according to claim 1, characterized in that, The rotating component is shaped like a Reuleaux triangle, so that three evenly distributed contact portions are formed on the outer side of the rotating component.

3. The rotation control device according to claim 1, characterized in that, The rotating component also has a deformation groove, which is correspondingly provided with the elastic abutment component.

4. The rotation control device according to claim 1, characterized in that, There is a gap between the side of the fixed frame facing away from the rotating component and the control component.

5. The rotation control device according to claim 4, characterized in that, The fixed frame has a protruding abutment on the side opposite to the rotating member. The abutment is arranged along the circumference of the fixed frame and abuts against the control member, so that there is a gap between the side of the fixed frame opposite to the rotating member and the control member.

6. The rotation control device according to claim 5, characterized in that, The abutment portion is arranged around the fixing frame.

7. The rotation control device according to claim 1, characterized in that, The surface of the elastic abutment that contacts the fixing frame is an arc surface.

8. An earphone, characterized in that, Includes the rotation control device according to any one of claims 1 to 7.

Images