CN114945122A - Rotation control device and earphone - Google Patents

Abstract

The application provides a rotation control device and an earphone. The rotary control device comprises a fixing frame, a rotating assembly and a control piece, wherein a circular groove is formed in the fixing frame, and a clamping groove is formed in the peripheral wall of the circular groove. The rotating assembly comprises a rotating piece and an elastic abutting piece, the rotating piece is located in the circular groove and is connected with the fixing frame in a rotating mode, at least three abutting portions are arranged on the outer side of the rotating piece in a protruding mode, the at least three abutting portions are arranged along the circumferential direction of the circular groove, and the abutting portions are in sliding abutting contact with the circumferential wall of the circular groove. The elastic abutting part is connected to the rotating part, the elastic abutting part is elastically clamped in the clamping groove when the rotating part stops rotating, and the elastic abutting part abuts against the peripheral wall of the circular groove when the rotating part rotates. The control part is connected with the rotating part, so that the control part is used for driving the rotating assembly to rotate. Because at least three effort is evenly laid in the outside of rotating the piece, improved the stationarity of rotating the piece when rotatory, experience when helping improving the user and adjusting volume or luminance is felt.

Description

Rotation control device and earphone

Technical Field

The invention relates to the technical field of headsets, in particular to a rotation control device and a headset.

Background

With the development of the headset, various headsets appear in the market, and the requirements of people on the headset are more and more strict, so that the functional requirements of the headset are required to be met while simplification is pursued. The volume of the headset is small, and a complex mechanical structure is difficult to realize, while the gear mechanism has the advantages of small volume, stable transmission and low price, and many headsets on the market also adopt the gear structure to meet the functional requirements. For volume or brightness adjustment of the earphone, a conventional technology adjusts by rotation of a circular gear, for example, patent publication No. CN 213818126U. However, since the outer side of the circular gear is in contact with the outside through only one contact, the circular gear may shake during rotation, which may affect the user's experience during adjustment.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provides a rotation control device with stable transmission and an earphone.

The purpose of the invention is realized by the following technical scheme:

a rotation control device comprising:

the fixing frame is provided with a circular groove, and a clamping groove is formed on the peripheral wall of the circular groove;

the rotating assembly comprises a rotating piece and an elastic abutting piece which are connected, the rotating piece is positioned in the circular groove and is rotationally connected with the fixing frame, at least three abutting parts are convexly arranged on the outer side of the rotating piece, the at least three abutting parts are arranged along the circumferential direction of the circular groove, and each abutting part is in sliding abutting contact with the circumferential wall of the circular groove; the elastic abutting connection piece is elastically clamped in the clamping groove when the rotating piece stops rotating, and the elastic abutting connection piece is connected to the peripheral wall of the circular groove in a sliding mode when the rotating piece rotates; and

and the control part is connected with the rotating part so that the control part is used for driving the rotating assembly to rotate.

In one embodiment, the outer shape of the rotating member is a reuleaux triangle, so that three interference parts are uniformly distributed on the outer side of the rotating member.

In one embodiment, the rotating member further forms a deformation groove, and the deformation groove is arranged corresponding to the elastic abutting member.

In one embodiment, the rotating assembly and the control member are respectively located on two opposite sides of the fixing frame, a position-avoiding hole is formed in the fixing frame, the rotating control device further comprises a fastening member, the fastening member is arranged in the position-avoiding hole in a penetrating mode, one end of the fastening member is connected with the control member, and the other end of the fastening member is abutted to the rotating member.

In one embodiment, the control member is formed with a threaded hole, and an end of the fastening member facing away from the rotating member is located in the threaded hole and is threadedly coupled to the control member.

In one embodiment, a gap exists between one side face of the fixing frame, which faces away from the rotating part, and the control part.

In one embodiment, a protruding abutting portion is arranged on one side, away from the rotating member, of the fixing frame in a protruding mode, the abutting portion is arranged along the circumferential direction of the fixing frame, and the abutting portion abuts against the control member, so that a gap exists between one side face, away from the rotating member, of the fixing frame and the control member.

In one embodiment, the abutting portion is disposed around the fixing frame.

In one embodiment, a surface of the elastic abutting part contacting the fixed frame is a circular arc surface.

An earphone comprising the rotation control device of any one of the above embodiments.

Compared with the prior art, the invention has at least the following advantages:

foretell rotation control device and earphone, because each conflict portion of rotating the piece slides and contradicts in the perisporium of circular recess, make the perisporium of circular recess play the effect of stably rotating the piece, even make the mount play and restrain the effect that rotates the piece and rock, again because the circumference setting of circular recess is followed to at least three conflict portion of rotating the piece, make the mount act on the at least three effort of rotating the piece and evenly lay in the outside of rotating the piece, and then improved the stationarity of rotating the piece when rotatory, the experience sense when helping improving user regulation volume or luminance is felt. Because the rotating part is not provided with the tooth grooves of the traditional gear, the structure of the rotating part is simple, and the processing cost of the rotation control device is further reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of an earphone according to an embodiment;

fig. 2 is a schematic structural diagram of a rotation control device of the earphone shown in fig. 1;

fig. 3 is a sectional view taken along line a-a of the rotation control device of the headset shown in fig. 2;

fig. 4 is an enlarged schematic view of a rotation control device B of the earphone shown in fig. 3;

fig. 5 is another schematic structural diagram of a rotation control device of the earphone shown in fig. 1;

fig. 6 is a sectional view taken along line C-C of the rotation control device of the earphone shown in fig. 5.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, 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 invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The application provides a rotation control device, including mount, rotating assembly and control, the mount is formed with the circular recess, and the perisporium of circular recess is formed with the joint groove. The rotating assembly comprises a rotating piece and an elastic abutting piece, the rotating piece is located in the circular groove and is rotationally connected with the fixing frame, at least three abutting portions are convexly arranged on the outer side of the rotating piece, the at least three abutting portions are arranged along the circumferential direction of the circular groove, and each abutting portion is in sliding abutting contact with the circumferential wall of the circular groove. The elastic abutting part is connected to the rotating part, the elastic abutting part is elastically clamped in the clamping groove when the rotating part stops rotating, and the elastic abutting part abuts against the peripheral wall of the circular groove when the rotating part rotates. The control part is connected with the rotating part, so that the control part is used for driving the rotating assembly to rotate. The application also provides an earphone which comprises the rotary control device.

Foretell rotation control device and earphone, because each conflict portion of rotating the piece slides and contradicts in the perisporium of circular recess, make the perisporium of circular recess play the effect of stably rotating the piece, even make the mount play and restrain the effect that rotates the piece and rock, again because the circumference setting of circular recess is followed to at least three conflict portion of rotating the piece, make the mount act on the at least three effort of rotating the piece and evenly lay in the outside of rotating the piece, and then improved the stationarity of rotating the piece when rotatory, the experience sense when helping improving user regulation volume or luminance is felt. Because the rotating part does not have the tooth grooves of the traditional gear, the structure of the rotating part is simple, and the processing cost of the rotation control device is further reduced.

In order to better understand the technical scheme and the beneficial effects of the present application, the following detailed description is further provided in conjunction with specific embodiments:

as shown in fig. 1 and 2, an embodiment of the earphone 10 includes a rotation control device 10a, the rotation control device 10a includes a fixing frame 100, a rotating assembly 300 and a control member 500, the fixing frame 100 is formed with a circular groove 101, and a circumferential wall of the circular groove 101 is formed with a clamping groove 102. The rotating assembly 300 includes a rotating member 310 and an elastic abutting 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 abutting portions 310a are protruded from an outer side of the rotating member 310, the at least three abutting portions 310a are disposed along a circumferential direction of the circular groove 101, and each abutting portion 310a slidably abuts against a circumferential wall of the circular groove 101. The elastic abutting member 320 is connected to the rotating member 310, the elastic abutting member 320 is elastically engaged with the engaging groove 102 when the rotating member 310 stops rotating, and the elastic abutting member 320 elastically abuts against the peripheral wall of the circular groove 101 when the rotating member 310 rotates. The control member 500 is connected to the rotation member 310 such that the control member 500 is used to drive the rotation member 300 to rotate.

As shown in fig. 1 to 3, in the present embodiment, the rotation member 310 is used to connect with a rotary encoder or a potentiometer, so that the rotation member 310 rotates synchronously with the rotary encoder or the potentiometer, and the adjustment of the sound volume or brightness of the earphone 10 is realized by the rotation of the rotation member 310. When the volume or brightness of the earphone 10 is adjusted, the control member 500 is rotated to make the rotating member 310 and the rotary encoder or the potentiometer rotate synchronously, at this time, each abutting portion 310a abuts against the peripheral wall of the circular groove 101 in a sliding manner, and at the same time, the elastic abutting member 320 slides along the peripheral wall of the circular groove 101, when the elastic abutting member 320 is aligned with the clamping groove 102, the elastic abutting member 320 elastically recovers and is clamped into the clamping groove 102, and the elastic abutting member 320 makes sound and vibration when contacting with the groove wall of the clamping groove 102, so as to give a prompt that the rotating member 310 rotates to the position, that is, a prompt that the volume or brightness is adjusted to the position. It should be noted that the control principle of the rotary encoder and the potentiometer on the circuit belongs to the conventional technology, and is not described herein.

In the above-mentioned earphone 10 and the rotation control device 10a, because each abutting portion 310a of the rotation member 310 abuts against the circumferential wall of the circular groove 101 in a sliding manner, the circumferential wall of the circular groove 101 plays a role in stabilizing the rotation member 310, i.e. the fixing frame 100 plays a role in suppressing the rotation member 310 from shaking, and because at least three abutting portions 310a of the rotation member 310 are arranged along the circumferential direction of the circular groove 101, at least three acting forces acting on the rotation member 310 by the fixing frame 100 are uniformly distributed outside the rotation member 310, thereby improving the stability of the rotation member 310 during rotation, and facilitating the improvement of the experience of the user in adjusting the volume or the brightness. Since the rotation member 310 does not have the tooth grooves of the conventional gears, the structure of the rotation member 310 is simple, and thus the manufacturing cost of the rotation control apparatus 10a is reduced.

As shown in fig. 2, in one embodiment, the rotating member 310 has a shape of a reuleaux triangle, so that three interference parts 310a are uniformly distributed on the outer side of the rotating member 310. In the embodiment, the external shape of the rotating member 310 is a reuleaux triangle, the central part of the rotating member 310 is a rotation center, and all three vertexes of the rotating member 310 are all the interference parts 310a, so that three interference parts 310a are formed on the outer side of the rotating member 310. When the rotation member 310 rotates, the three interference portions 310a of the rotation member 310 all have the same motion track, and the three interference portions 310a of the rotation member 310 all slide along the peripheral wall of the circular groove 101. Because the movement tracks of the three interference parts 310a of the rotating part 310 are the same, the acting force applied to the three interference parts 310a when the three interference parts slide along the peripheral wall of the circular groove 101 is always kept unchanged, so that the stability of the rotating part 310 during rotation is improved, and the experience of a user in adjusting the volume or the brightness is improved.

As shown in fig. 2, in one embodiment, the elastic supporting member 320 is a plastic structure, so that the elastic supporting member 320 has elasticity. As shown in fig. 5, in another embodiment, the elastic abutting member 320 is a metal elastic sheet, so that the elastic abutting member 320 has elasticity, and the fatigue strength of the elastic abutting member 320 is increased, so that the abutting force between the elastic abutting member 320 and the circumferential wall of the circular groove 101 is kept stable, that is, the control member 500 is kept stable, which is helpful for improving the experience of the user when adjusting the volume or brightness.

Furthermore, the elastic abutting member 320 includes a metal elastic portion 321 and a flexible portion 322, the metal elastic portion 321 is connected to the rotating member 310, and the flexible portion 322 is wrapped on the metal elastic portion 321, so that the metal elastic portion 321 is in flexible abutment with the peripheral wall of the circular groove 101 through the flexible portion 322, the metal elastic portion 321 is prevented from wearing the peripheral wall of the circular groove 101, the tightness of abutment of the elastic abutting member 320 with the fixing frame 100 is further ensured, and the stability of the rotating member and the control member 500 during rotation is improved.

As shown in fig. 2 and 5, in one embodiment, the rotating member 310 further forms a deformation groove 311, and the deformation groove 311 is disposed corresponding to the elastic abutting member 320. In the embodiment, when the elastic abutting member 320 moves out of the engaging groove 102, the elastic abutting member 320 deforms toward the deformation groove 311, so that the length of the elastic abutting member 320 extending out of the rotating member 310 is reduced, and the elastic abutting member 320 can abut against the peripheral wall of the circular groove 101, thereby preventing the elastic abutting member 320 from obstructing the rotation of the rotating member 310 and ensuring that the rotating member 310 completes the rotation.

As shown in fig. 3, in one embodiment, the rotating assembly 300 and the control member 500 are respectively located at two opposite sides of the fixing frame 100, the fixing frame 100 is formed with a clearance hole 103, the rotating control device 10a further includes a fastening member 700, the fastening member 700 is inserted through the clearance hole 103, one end of the fastening member 700 is connected with the control member 500, and the other end of the fastening member 700 abuts against the rotating member 310. In the embodiment, the fastening member 700 is disposed through the avoiding hole 103, and two ends of the fastening member 700 are respectively connected to the control member 500 and the rotating member 310, so that the control member 500 and the rotating member 310 are respectively rotatably connected to two opposite sides of the fixing frame 100, and the displacement of the control member 500 and the rotating member 310 is avoided.

As shown in fig. 3, in one embodiment, the control member 500 is formed with a threaded hole 501, and an end of the fastener 700 facing away from the rotation member 310 is located in the threaded hole 501 and is threadedly coupled with the control member 500, so as to improve convenience of coupling the fastener 700 with the control member 500 and convenience of separating the fastener 700 from the control member 500. In the present embodiment, the fastener 700 is a threaded fastener 700, such as a screw, bolt, or other threaded fastener 700 known in the art.

As shown in fig. 5 and 6, in one embodiment, the number of the fastening members 700, the two avoiding holes 103, and the two threaded holes 501 is two, the two fastening members 700, the two avoiding holes 103, and the two threaded holes 501 are arranged in a one-to-one correspondence, each fastening member 700 is inserted into the corresponding avoiding hole 103, one end of each fastening member 700 abuts against the fixing frame 100, and the other end of each fastening member 700 is located in the corresponding threaded hole 501 and is in threaded connection with the control member 500. In this embodiment, the two fastening members 700 connect the control member 500 and the rotating member 310, widen the supporting point of the rotating member 310, shorten the distance between each abutting portion 310a and the supporting point, suppress the shaking of the rotating member 310 when rotating, contribute to improving the stability of the rotating member 310 when rotating, and further contribute to improving the experience of the user when adjusting.

It can be understood that, a gap is formed between the fastening member 700 and the threaded hole 501, so that the fastening member 700 and the control member 500 are relatively easy to move, and as the number of times of rotation of the control member 500 and the rotation member 310 increases, the relative displacement between the fastening member 700 and the control member 500 increases, so that the connection tightness between the control member 500 and the rotation member 310 decreases, and further, the control member 500 and the rotation member 310 are relatively easy to shake when rotating, which greatly affects the experience of a user when rotating the control device 10a when adjusting. Therefore, as shown in fig. 4, in one embodiment, the rotation control device 10a further includes an elastic layer 900, the elastic layer 900 is coated on the fastening member 700, and the elastic layer 900 is respectively elastically abutted to the side wall of the fastening member 700 and the hole wall of the threaded hole 501, so that the elastic layer 900 blocks the gap between the fastening member 700 and the control member 500, thereby effectively inhibiting the relative displacement between the fastening member 700 and the control member 500, avoiding the problem of shaking of the rotation control device 10a after multiple adjustments, and effectively improving the experience of the user when adjusting the rotation control device 10 a. In this embodiment, the elastic layer 900 may be a silicone layer, a rubber layer, or other elastic structure.

It will be appreciated that during the process of driving fastener 700 into threaded bore 501, continued driving of fastener 700 is typically stopped when the resistance experienced by fastener 700 during rotation reaches a predetermined value, to avoid a situation of a slip in fastener 700. However, in order to ensure that the elastic layer 900 completely blocks the gap between the fastener 700 and the control member 500, the thickness of the elastic layer 900 covering the fastener 700 is large, so that during the process of screwing the fastener 700 into the threaded hole 501, part of the elastic layer 900 on the fastener 700 which enters the threaded hole 501 is pressed onto the fastener 700 which does not enter the threaded hole 501, and the thickness of the elastic layer 900 on the fastener 700 which enters the threaded hole 501 is large, so that the elastic resistance of the fastener 700 to the elastic layer 900 is larger and larger as the screwing depth of the fastener 700 is increased. In order to tightly connect the rotating member 310 to the control member 500 through the fastening member 700 so as to enable the control member 500 and the rotating member 310 to rotate synchronously, even if the resistance applied to the fastening member 700 reaches a predetermined value, the fastening member 700 needs to be screwed in continuously, which results in a situation that at least one of the fastening member 700 and the control member 500 is prone to have a thread slip, and thus the connection stability between the fastening member 700 and the control member 500 is poor, when the control member 500 rotates a certain number of times, the thread of the thread slip will break, so that the connection between the fastening member 700 and the control member 500 is loose, and thus the control member 500 and the rotating member 310 are prone to have a shaking problem when rotating, which is not beneficial to improving the experience of a user when adjusting the rotating control device 10 a.

To avoid the problem of thread slipping, in one embodiment, as shown in fig. 4, a glue ejection chamfer 5011 is formed at the entrance of the threaded hole 501 to increase the size of the entrance of the threaded hole 501. In the present embodiment, due to the larger size of the entrance of the threaded hole 501, when the fastener 700 is screwed into the threaded hole 501, the elastic layer 900 on the fastener 700 screwed into the threaded hole 501 will be partially pressed to the glue discharging chamfer 5011 to reduce the resistance of the elastic layer 900 to the fastener 700, and avoid the problem of the elastic layer 900 causing the thread slipping. Along with the increase of the glue layer of the glue discharging chamfer 5011, part of the elastic layer 900 is discharged out of the threaded hole 501 through the glue discharging chamfer 5011, so that the resistance of the elastic layer 900 to the fastener 700 is reduced, and the problem of tooth slipping caused by the elastic layer 900 is avoided.

However, since the glue discharging chamfer 5011 is formed at the inlet of the threaded hole 501, the number of turns of the threaded hole 501 is reduced, and further the connection strength between the fastening member 700 and the control member 500 is correspondingly reduced, the control member 500 and the rotating member 310 are prone to shaking, which is not beneficial to improving the experience of the user in adjusting the rotating control device 10 a.

Therefore, as shown in fig. 4, in one embodiment, the rotation control device 10a further includes a clip 200, a receiving hole 701 is formed at an end of the fastening member 700 along an axial direction of the fastening member 700, and an annular limiting groove 702 is formed on an inner wall of the receiving hole 701 along a circumferential direction of the fastening member 700. The clamping member 200 is located in the threaded hole 501 and connected to the control member 500, a portion of the clamping member 200 is located in the receiving hole 701, and the clamping portion 220 of the clamping member 200 is clamped in the annular limiting groove 702. In the embodiment, the clamping member 200 abuts against the wall of the receiving hole 701 when entering the receiving hole 701, and when the clamping member 200 enters the receiving hole 701 by a certain depth, the clamping portion 220 of the clamping member 200 is aligned with the annular limiting groove 702 and enters the annular limiting groove 702, so that the clamping portion 220 of the clamping member 200 is clamped in the annular limiting groove 702, the connection strength between the control member 500 and the fastening member 700 is improved, and the shaking problem of the control member 500 and the rotating member 310 during rotation is effectively suppressed. Moreover, when the clamping portion 220 of the clamping member 200 is clamped into the annular limiting groove 702, the clamping portion collides with the groove wall of the annular limiting groove 702 to generate a sound, the sound can prompt the user that the fastening member 700 is screwed in place, so that the user can stop rotating the fastening member 700 in time, the problem that the fastening member 700 is over-screwed is avoided, the generation of sliding teeth is avoided, the problem that the fastening member 700 is connected with the control member 500 to be loose is further suppressed, the problem that the control member 500 and the rotating member 310 are prone to shaking when rotating is further suppressed, and the experience of the user in adjusting the rotating control device 10a is improved.

As shown in fig. 4, further, the clamping member 200 includes a connecting portion 210 and a clamping portion 220, the connecting portion 210 is located in the threaded hole 501 and is connected to the control member 500, the clamping portion 220 is located in the threaded hole 501, a first end of the clamping portion 220 is connected to the connecting portion 210, an included angle is formed between the clamping portion 220 and the connecting portion 210, and the clamping portion 220 is clamped in the annular limiting groove 702. In this embodiment, when the clip portion 220 enters the receiving hole 701, the second end of the clip portion 220 is close to the connecting portion 210 due to being abutted, that is, an included angle between the clip portion 220 and the connecting portion 210 is reduced when the clip portion 220 enters the receiving hole 701. When the second end of the engaging portion 220 is aligned with the annular limiting groove 702, the engaging portion 220 is elastically restored, so that the second end of the engaging portion 220 is limited in the annular limiting groove 702.

It can be understood that, since the clip 200 is clipped in the annular limiting groove 702 of the fastener 700, the user cannot press the clip portion 220 to separate the clip portion 220 from the limitation of the annular limiting groove 702, and thus the user cannot separate the clip 200 from the fastener 700. When maintaining rotary control device 10a, fastener 700 needs to be dismantled, in case fastener 700 has been dismantled, joint spare 200 will be separated by force with fastener 700, this will lead to joint spare 200 to damage, and then lead to unable the connection effect of playing after the follow-up tightening of joint spare 200 fastener 700, and then make control piece 500 and rotation piece 310 the problem that rocks appears more easily when rotatory, be unfavorable for improving the experience sense when the user adjusts rotary control device 10 a.

In order to make the clip 200 function continuously, as shown in fig. 4, a sliding-out groove 703 is further formed in the receiving hole 701 along the axial direction of the fastening member 700, and the sliding-out groove 703 extends to the openings of the annular limiting groove 702 and the receiving hole 701, respectively. Furthermore, the clip 200 further includes a limiting portion 230, the connecting portion 210 is disposed through the control member 500 and rotatably connected to the control member 500, so that the clip 200 is rotatably connected to the control member 500, the limiting portion 230 is connected to the connecting portion 210, and the limiting portion 230 abuts against a side of the control member 500 away from the rotating member 310, so that the user can rotate the limiting portion 230. In the embodiment, the clamping portion 220 of the clamping member 200 is aligned with the sliding-out groove 703 when the clamping member 200 rotates to a predetermined angle, so as to prevent the groove wall of the annular limiting groove 702 from limiting the movement of the clamping portion 220, and further, the clamping member 200 can be pulled out of the annular limiting groove 702 and the receiving hole 701, that is, the clamping member 200 can be pulled out of the fastening member 700, thereby avoiding the problem that the clamping member 200 is damaged when the fastening member 700 is disassembled. When the fastening member 700 is connected to the clip member 200, if the clip portion 220 is not aligned with the annular limiting groove 702, i.e. the clip portion 220 is not clipped in the annular limiting groove 702, the limiting portion 230 is rotated to align the clip portion 220 with the annular limiting groove 702, so that the clip portion 220 is clipped in the annular limiting groove 702.

It can be understood that, because the sliding groove 703 is inside the fastener 700, the user can't see whether the clamping portion 220 is aligned with the sliding groove 703 when pulling out the clamping member 200 from the fastener 700, and only try to pull out the clamping member 200 to determine whether the clamping portion 220 is aligned with the sliding groove 703, which causes the clamping member 200 to be deformed many times, which is more likely to cause the elastic recovery capability of the clamping member 200 to decrease, and further causes the abutting force of the clamping member 200 clamped in the annular limiting groove 702 to decrease, i.e. causes the connection strength of the clamping member 200 and the fastener 700 to decrease, and further causes the control member 500 and the rotating member 310 to be more likely to shake when rotating, and is not beneficial to improving the experience of the user when adjusting the rotation control device 10 a. As shown in fig. 4, further, there is a depth difference between the sliding-out groove 703 and the annular limiting groove 702, that is, the depth of the sliding-out groove 703 is inconsistent with the depth of the annular limiting groove 702, so 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 changes, and further the reaction force received by the clamping portion 220 changes, and further the clamping member 200 vibrates and/or makes a sound, so as to prompt the clamping portion 220 to be aligned successfully with the sliding-out groove 703, at this time, the user can directly extract the clamping member 200, the number of times of deformation of the clamping member 200 is reduced, and the connection strength between the clamping member 200 and the fastening member 700 is favorably ensured.

It can be understood that different users have different adjustment force requirements, that is, the most comfortable adjustment force for different users is different, however, the conventional clamping manner of the clamping member 200 and the fastening member 700 will result in the tightness of the connection between the fastening member 700 and the control member 500 being unadjustable, so that the user cannot adjust the adjustment force individually, which is not beneficial to improving the adaptability of the rotating control device 10 a. For this reason, as shown in fig. 4, in one embodiment, the rotation control device 10a further includes an elastic washer 400, the elastic washer 400 is sleeved on the connecting portion 210, and two opposite sides of the elastic washer 400 are elastically abutted to the limiting portion 230 and one 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 to rotate the control member 500. The number of the annular limiting grooves 702 is plural, the plural annular limiting grooves 702 are arranged at intervals along the axial direction of the fastener 700, the sliding 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 may be a silicone washer, a rubber washer, or other existing elastic washers 400. Because the plurality of annular limiting grooves 702 are arranged along the axial direction of the fastening member 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 then the elastic washer 400 has different elastic forces when the clamping portion 220 is clamped in different annular limiting grooves 702. And the force required for rotating the control member 500 is influenced by the elastic force of the elastic washer 400, so that the adjusting force of the control member 500 can be adjusted to meet the requirements of different users on the adjusting force.

As shown in fig. 3, in one embodiment, a gap exists between a side of the fixing frame 100 facing away from the rotating element 310 and the control element 500, so as to reduce a contact area between the fixing frame 100 and the control element 500, thereby reducing resistance of the fixing frame 100 to the control element 500, and helping to improve smoothness of the control element 500 during rotation.

As shown in fig. 3, further, an abutting portion 110 is convexly disposed on a side of the fixing frame 100 away from the rotating member 310, the abutting portion 110 is disposed along a circumferential direction of the fixing frame 100, and the abutting portion 110 abuts against the control member 500, so that a gap exists between a side of the fixing frame 100 away from the rotating member 310 and the control member 500. Furthermore, the abutting portion 110 is disposed around the fixing frame 100, so that the force applied to the control member 500 of the abutting portion 110 is more uniform, and the stability of the control member 500 and the rotating member 310 during rotation is further improved.

As shown in fig. 2, in one embodiment, the surface of the elastic abutting member 320 contacting the fixing frame 100 is a circular arc surface, that is, the elastic abutting member 320 is provided with a circular arc surface, the circular arc surface contacts with the groove wall of the engaging groove 102 when the rotating member 310 stops rotating, and the circular arc surface is slidably connected with the groove wall of the circular groove 101 when the rotating member 310 rotates. In this embodiment, since the surface of the elastic abutting member 320 contacting the fixing frame 100 is an arc surface, when the elastic abutting member 320 is clamped into or moved out of the clamping groove 102, the acting force applied to the elastic abutting member 320 gradually changes, so that the impact applied to the elastic abutting member 320 is small, which is beneficial to improving the stability of the rotating member 310 and the control member 500, and is beneficial to improving the experience of the user in adjusting the volume or the brightness.

Compared with the prior art, the invention has at least the following advantages:

in the above-mentioned rotation control apparatus 10a, because each abutting portion 310a of the rotating member 310 abuts against the peripheral wall of the circular groove 101 in a sliding manner, the peripheral wall of the circular groove 101 plays a role in stabilizing the rotating member 310, i.e. the fixing frame 100 plays a role in suppressing the rotating member 310 from shaking, and because at least three abutting portions 310a of the rotating member 310 are arranged along the circumferential direction of the circular groove 101, at least three acting forces acting on the rotating member 310 by the fixing frame 100 are uniformly distributed outside the rotating member 310, thereby improving the stability of the rotating member 310 during rotation, and facilitating improvement of experience when a user adjusts volume or brightness. Since the rotation member 310 does not have the tooth grooves of the conventional gears, the structure of the rotation member 310 is simple, and thus the manufacturing cost of the rotation control apparatus 10a is reduced.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A rotation control device, comprising:

the fixing frame is provided with a circular groove, and a clamping groove is formed on the peripheral wall of the circular groove;

the rotating assembly comprises a rotating piece and an elastic abutting piece which are connected, the rotating piece is positioned in the circular groove and is rotationally connected with the fixing frame, at least three abutting parts are convexly arranged on the outer side of the rotating piece, the at least three abutting parts are arranged along the circumferential direction of the circular groove, and each abutting part is in sliding abutting contact with the circumferential wall of the circular groove; the elastic abutting-connection piece is elastically clamped in the clamping groove when the rotating piece stops rotating, and the elastic abutting-connection piece is connected to the peripheral wall of the circular groove in a sliding mode when the rotating piece rotates; and

and the control part is connected with the rotating part so that the control part is used for driving the rotating assembly to rotate.

2. The rotating control device of claim 1, wherein the rotating member has a shape of a reuleaux triangle so that three interference portions are formed on the outer side of the rotating member and are uniformly distributed.

3. The rotating control device according to claim 1, wherein the rotating member is further formed with a deformation groove provided in correspondence with the elastic abutment member.

4. The rotating control device according to claim 1, wherein the rotating assembly and the control member are respectively located at two opposite sides of the fixing frame, a position-avoiding hole is formed in the fixing frame, the rotating control device further comprises a fastening member, the fastening member is arranged in the position-avoiding hole in a penetrating manner, one end of the fastening member is connected with the control member, and the other end of the fastening member is abutted to the rotating member.

5. The rotating control device of claim 4, wherein the control member is formed with a threaded bore, and an end of the fastener facing away from the rotating member is positioned within the threaded bore and threadedly coupled to the control member.

6. The rotating control device of claim 4, wherein a gap exists between a side of the fixing frame facing away from the rotating member and the control member.

7. The rotating control device of claim 6, wherein an abutting portion is protruded from a side of the fixing frame away from the rotating member, the abutting portion is disposed along a circumferential direction of the fixing frame, and the abutting portion abuts against the control member, so that a gap exists between a side of the fixing frame away from the rotating member and the control member.

8. The rotating control device of claim 7, wherein the abutment is disposed around the mount.

9. The rotation control device according to claim 1, wherein a surface of the elastic abutting member contacting the fixing frame is a circular arc surface.

10. A headset characterized by comprising a rotation control device according to any one of claims 1 to 9.

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