Headgear with telescoping structure and headphones

Abstract

The application provides a head-mounted telescopic structure and a head-mounted earphone. The head-mounted telescopic structure comprises a first support, an intermediate head-mounted mechanism and a second support connected in sequence. The first support comprises a first support body and a first sliding engagement member connected with each other. The second support comprises a second support body and a second sliding engagement member connected with each other. The intermediate head-mounted mechanism comprises an intermediate housing, a movable pressure applying driving member, a sliding limiting push block and a rotating engagement member. The movable pressure applying driving member is elastically connected to the intermediate housing. The sliding limiting push block is elastically connected to the intermediate housing. The movable pressure applying driving member elastically abuts against the rotating engagement member. The rotating engagement member is rotationally arranged on the intermediate housing. The rotating engagement member is used for rotating relative to the intermediate housing when the sliding limiting push block is away from the rotating engagement member. The rotating engagement member is engaged with the first sliding engagement member and the second sliding engagement member respectively, so as to drive the first support body and the second support body to move relative to the intermediate housing.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of earphones, in particular to a head-mounted telescopic structure and a head-mounted earphone. BACKGROUND

[0002] An earphone is a transducer that can receive electrical signals from a media player or receiver and convert them into sound using a speaker close to the ear. It is an essential accessory for portable electronic devices such as mobile phones, MP3 players, and radios. Headphones are a type of earphone. A traditional head-mounted earphone typically includes a head-mounted structure that holds the head and an earphone connected to the head-mounted structure. The head-mounted structure is usually designed as a single unit, meaning it cannot be moved. The head-mounted structure relies on steel sheets or head-mounted plastic to generate holding force, allowing it to be held on the head. However, this design is not very adaptable to different head shapes.

[0003] To solve the above problems, a head-mounted earphone is provided in Chinese Patent No. CN201711396187.1, which includes two ear shells and a head-mounted assembly connected between the two ear shells. The head-mounted assembly includes a head-mounted part and sliding parts connected to the ends of the head-mounted part. The end of the head-mounted part is provided with a sliding groove, and the sliding groove is provided with a grinding sheet that can slide from one side of the sliding groove to the other side. The grinding sheet is provided with two sliding channels with the same sliding direction as the sliding direction of the sliding part, and a meshing structure is arranged between the two sliding channels. The end of the sliding part is provided with a gear that can mesh with the meshing structure through a spring arm structure. The ends of the two sliding channels are provided with an arc-shaped guide wall. The first positioning structure is arranged on the two sliding channels, and the second positioning structure is arranged on the spring arm structure.

[0004] Although the head-mounted earphone disclosed in the above patent has a sliding rail structure, the sliding rail structure design of this patent is relatively simple. When facing different head shapes, the sliding rail structure needs to be manually pulled, which is not convenient for adjusting the holding force. At the same time, the sliding rail structure is designed on both sides, and the middle position of the head-mounted structure cannot be adjusted, so the head-mounted earphone cannot quickly adjust the appropriate holding position.

[0005] Therefore, there is an urgent need for a head-mounted earphone that can adapt to different people, adjust the holding force conveniently, and quickly adjust the holding position. SUMMARY

[0006] The purpose of the present application is to overcome the shortcomings of the prior art and provide a head-mounted telescopic structure and a head-mounted earphone that have high adaptability, are convenient to adjust the holding force, and can quickly adjust the holding position.

[0007] The purpose of the present application is achieved through the following technical solutions:

[0008] A head-mounted telescopic structure comprises:

[0009] A first support, an intermediate head-mounted mechanism and a second support are connected in sequence, the first support comprises a first support body and a first sliding engagement member connected with each other, the second support comprises a second support body and a second sliding engagement member connected with each other, and the first sliding engagement member is arranged opposite to the second sliding engagement member.

[0010] The intermediate head-mounted mechanism comprises an intermediate housing, an elastic pressure driving member, a sliding limiting push block and a rotating engagement member, the elastic pressure driving member is elastically connected to the intermediate housing in rotation, the sliding limiting push block is elastically connected to the intermediate housing in sliding, the elastic pressure driving member is used to drive the sliding limiting push block to slide relative to the intermediate housing when the elastic pressure driving member rotates to a predetermined angle range, the elastic pressure driving member elastically abuts against the rotating engagement member, the rotating engagement member is arranged on the intermediate housing in rotation, and the rotating engagement member is used to rotate relative to the intermediate housing when the sliding limiting push block leaves the rotating engagement member; the rotating engagement member is engaged with the first sliding engagement member and the second sliding engagement member respectively to drive the first support body and the second support body to move relative to the intermediate housing.

[0011] In one of the embodiments, the first support body and the second support body are connected to the intermediate housing in sliding.

[0012] In one of the embodiments, the sliding limiting push block comprises a first elastic element, two ends of the first elastic element abut against the sliding limiting push block and the intermediate housing respectively.

[0013] When the sliding limiting push block leaves the rotating engagement member to compress the first elastic element, the first support body slides relative to the intermediate housing.

[0014] When the first support body slides relative to the intermediate housing, the first sliding engagement member drives the rotating engagement member to rotate, the rotating engagement member drives the second sliding engagement member to slide to drive the second support body to slide relative to the intermediate housing.

[0015] In one of the embodiments, the first support body further comprises a second elastic element, the second elastic element is compressed and abuts between the intermediate housing and the first support body, and the second elastic element is used to stretch and drive the first support body to slide relative to the intermediate housing when the sliding limiting push block leaves the rotating engagement member to compress the first elastic element.

[0016] In one of the embodiments, the sliding limiting push block further comprises a sliding part and a limiting part connected with each other, the sliding part is elastically connected with the second elastic element, the sliding part is in abutment with the movable pressure applying driving member, and the limiting part is movably connected with the rotary engaging member.

[0017] In one of the embodiments, the rotary engaging member comprises a first rotary engaging part and a second rotary engaging part connected with each other, the first rotary engaging part is engaged with the first sliding engaging member and the second sliding engaging member respectively, and the second rotary engaging part is movably connected with the limiting part.

[0018] In one of the embodiments, the first sliding engaging member and the second sliding engaging member are both rack engaging structures, and the first sliding engaging member and the second sliding engaging member are formed with an accommodation gap, and the movable pressure applying driving member and the rotary engaging member are both arranged in the accommodation gap.

[0019] In one of the embodiments, the movable pressure applying driving member comprises a movable pressure applying driving member body and a third elastic element connected with each other, the movable pressure applying driving member body is rotatably connected with the intermediate housing, and the third elastic element is elastically connected with the rotary engaging member and the intermediate housing respectively.

[0020] In one of the embodiments, the movable pressure applying driving member is provided with a first inclined abutment surface, the sliding limiting push block is provided with a second inclined abutment surface, the first inclined abutment surface and the second inclined abutment surface are correspondingly arranged to drive the sliding limiting push block to slide horizontally when the movable pressure applying driving member is pressed down.

[0021] A headphone comprises a first ear pad, a second ear pad and the head-mounted telescopic structure of any one of the above embodiments, the first ear pad is connected with the first support, and the second ear pad is connected with the second support.

[0022] Compared with the prior art, the present application has at least the following advantages:

[0023] The head-mounted telescopic structure described above, the first support body is connected with the first sliding engagement piece, the second support body is connected with the second sliding engagement piece, the rotary engagement piece is engaged with the first sliding engagement piece and the second sliding engagement piece respectively, when the movable pressure applying driving piece is pressed down, the end of the movable pressure applying driving piece adjacent to the sliding limiting push block slides forward, when sliding to the preset position, that is, when the movable pressure applying driving piece rotates to the predetermined angle interval relative to the intermediate shell, the sliding limiting push block moves away from the rotary engagement piece and abuts against the first support body, the movable pressure applying driving piece continues to be pressed down to make the sliding limiting push block push the first support body to slide, because the first sliding engagement piece is engaged with the rotary engagement piece, so that the rotary engagement piece rotates and drives the second sliding engagement piece to slide relative to the intermediate shell, so that the first support body and the second support body slide synchronously. Specifically, the first support body is pushed to slide by the sliding limiting push block, the second support body is driven to slide by the rotary engagement piece, and the first support body and the second support body realize synchronous sliding, which can quickly adjust the clamping position and has high convenience in adjusting the clamping force, and has higher adaptability to people with different head shapes. BRIEF DESCRIPTION OF DRAWINGS

[0024] 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 embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0025] Figure 1 It is an structural schematic diagram of the head-mounted telescopic structure of an embodiment;

[0026] Figure 2 It is Figure 1 It is another structural schematic diagram of the head-mounted telescopic structure shown;

[0027] Figure 3 It is Figure 1 It is still another structural schematic diagram of the head-mounted telescopic structure shown;

[0028] Figure 4 It is Figure 3 It is a partial enlarged schematic diagram of the head-mounted telescopic structure shown at A;

[0029] Figure 5 It is Figure 1 It is still another structural schematic diagram of the head-mounted telescopic structure shown;

[0030] Figure 6 It is Figure 5 It is a partial enlarged schematic diagram of the head-mounted telescopic structure shown at B;

[0031] Figure 7 It isFigure 1 The diagram shows a cross-sectional view of the telescopic headgear structure.

[0032] Figure 8 for Figure 7 A magnified view of the head-mounted telescopic structure at point C;

[0033] Figure 9 for Figure 1 Another schematic diagram of the telescopic headgear structure shown. Detailed Implementation

[0034] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0035] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0036] 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 invention pertains. 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. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0037] The application provides a head-mounted telescopic structure, which comprises a first support, an intermediate head-mounted mechanism and a second support connected in sequence, the first support comprises a first support body and a first sliding engagement piece connected with each other, the second support comprises a second support body and a second sliding engagement piece connected with each other, and the first sliding engagement piece is arranged opposite to the second sliding engagement piece; the intermediate head-mounted mechanism comprises an intermediate shell, a movable pressure applying driving piece, a sliding limiting push block and a rotating engagement piece, the movable pressure applying driving piece is elastically connected to the intermediate shell in a rotating mode, the sliding limiting push block is elastically connected to the intermediate shell in a sliding mode, the movable pressure applying driving piece is used to drive the sliding limiting push block to slide relative to the intermediate shell when the movable pressure applying driving piece is rotated to a predetermined angle range, the movable pressure applying driving piece is elastically abutted against the rotating engagement piece, the rotating engagement piece is arranged on the intermediate shell in a rotating mode, and the rotating engagement piece is used to rotate relative to the intermediate shell when the sliding limiting push block is away from the rotating engagement piece; and the rotating engagement piece is engaged with the first sliding engagement piece and the second sliding engagement piece respectively, so as to drive the first support body and the second support body to move relative to the intermediate shell.

[0038] In the head-mounted telescopic structure, the first support body is connected with the first sliding engagement piece, the second support body is connected with the second sliding engagement piece, the rotating engagement piece is engaged with the first sliding engagement piece and the second sliding engagement piece respectively, when the movable pressure applying driving piece is pressed down, one end of the movable pressure applying driving piece adjacent to the sliding limiting push block slides forward, when the sliding limiting push block slides to a preset position, the sliding limiting push block is away from the rotating engagement piece and abuts against the first support body when the movable pressure applying driving piece is rotated to a predetermined angle range relative to the intermediate shell, the movable pressure applying driving piece is continuously pressed down to make the sliding limiting push block slide the first support body, the rotating engagement piece is rotated and drives the second sliding engagement piece to slide relative to the intermediate shell due to the engagement between the first sliding engagement piece and the rotating engagement piece, and the first support body and the second support body are synchronously slid. Specifically, the first support body is slid by the sliding limiting push block, the second support body is slid by the rotating of the rotating engagement piece, the first support body and the second support body are synchronously slid, the clamping position can be quickly adjusted, the convenience of adjusting the clamping force is high, and the adaptability to people with different head shapes is higher.

[0039] In order to better understand the technical scheme and beneficial effects of the application, the application is further described in detail below in combination with specific embodiments.

[0040] As Figures 1 to 6As shown, the telescopic head structure 10 of one embodiment includes a first support 100, an intermediate head mechanism 200 and a second support 300. The first support 100 includes a first support body 110 and a first sliding engagement member 120 connected with each other. The second support 300 includes a second support body 310 and a second sliding engagement member 320 connected with each other. The first sliding engagement member 120 is arranged opposite to the second sliding engagement member 320. When the first sliding engagement member 120 slides, the first support 100 slides. When the second sliding engagement member 320 slides, the second support body 310 slides. Further, the intermediate head mechanism 200 includes an intermediate housing 210, a movable pressure applying driving member 220, a sliding limiting push block 230 and a rotating engagement member 240. The movable pressure applying driving member 220 is elastically rotationally connected to the intermediate housing 210. The sliding limiting push block 230 is elastically slidably connected to the intermediate housing 210. The movable pressure applying driving member 220 is configured to drive the sliding limiting push block 230 to slide relative to the intermediate housing 210 when the movable pressure applying driving member 220 rotates relative to the intermediate housing 210 to a predetermined angle range. The predetermined angle range is an angle range in which one end of the movable pressure applying driving member 220 is in contact with the intermediate housing 210.

[0041] Further, the movable pressure applying driving member 220 is elastically in contact with the rotating engagement member 240. The rotating engagement member 240 is rotationally arranged in the intermediate housing 210. The rotating engagement member 240 is configured to rotate relative to the intermediate housing 210 when the sliding limiting push block 230 is away from the rotating engagement member 240, i.e. the sliding limiting push block 230 is away from the rotating engagement member 240 under the pushing of the movable pressure applying driving member 220. The rotating engagement member 240 is engaged with the first sliding engagement member 120 and the second sliding engagement member 320, respectively, to drive the first support body 110 and the second support body 310 to move relative to the intermediate housing 210, i.e. the first support body 110 slides under the dragging of the sliding limiting push block 230, the first sliding engagement member 120 drives the rotating engagement member 240 to rotate, and then drives the second sliding engagement member 320 to slide, and then drives the second support body 310 to slide.

[0042] In the embodiment, the active pressing driving member 220 is elastically rotationally connected to the intermediate shell 210, and the sliding limiting push block 230 abuts against the active pressing driving member 220. When the head-mounted telescopic structure 10 is adjusted to a clamping position, a finger presses and presses down the active pressing driving member 220, so that the active pressing driving member 220 is pressed down. When the active pressing driving member 220 is pressed down to a preset position, that is, when one end of the active pressing driving member 220 is rotated to a preset angle interval relative to the intermediate shell 210, the active pressing driving member 220 drives the sliding limiting push block 230 to move away from the rotary engaging member 240 and drives the sliding limiting push block 230 to slide the first support 100 body. Since the first support 100 body is connected with the first sliding engaging member 120, the first sliding engaging member 120 is also slid. Since the first sliding engaging member 120 is engaged with the rotary engaging member 240, the first sliding engaging member 120 drives the rotary engaging member 240 to rotate.

[0043] Further, since the second sliding engaging member 320 is engaged with the rotary engaging member 240, the rotary engaging member 240 is rotated under the drive of the first sliding engaging member 120, so that the rotary engaging member 240 drives the second sliding engaging member 320 to slide relative to the intermediate shell 210. Since the second sliding engaging member 320 is connected with the second support body 310, the second sliding engaging member 320 drives the second support body 310 to slide. In this way, the synchronous sliding function of the first support body 110 and the second support body 310 is realized.

[0044] Further, when the first support body 110 and the second support body 310 are synchronously slid to a suitable position, the finger is released at this time. Since the active pressing driving member 220 is elastically connected to the intermediate shell 210, the active pressing driving member 220 is reset under the elastic drive after the finger is released. Since the sliding limiting push block 230 abuts against the active pressing driving member 220, the sliding limiting push block 230 also starts to reset in the process that the active pressing driving member 220 is reset. When the active pressing driving member 220 is reset to the initial position, the sliding limiting push block 230 is also reset to the initial position. At this time, the sliding limiting push block 230 is clamped with the rotary engaging member 240, so that the rotary engaging member 240 stops rotating. Since the rotary engaging member 240 is engaged with the first sliding engaging member 120 and the second sliding engaging member 320 respectively, the rotary engaging member 240 stops rotating, so that the first sliding engaging member 120 and the second sliding engaging member 320 stop sliding. Since the first sliding engaging member 120 is connected with the first support body 110, and the second sliding engaging member 320 is connected with the second support body 310, the first support body 110 and the second support body 310 stop sliding, that is, the adjustment is completed.

[0045] The telescopic structure 10 is connected with the first sliding engagement member 120 and the second sliding engagement member 320, and the rotating engagement member 240 is engaged with the first sliding engagement member 120 and the second sliding engagement member 320. When the movable pressing driving member 220 is pressed downward, the movable pressing driving member 220 slides forward adjacent to one end of the sliding limiting push block. When the sliding limiting push block 230 slides to a preset position, that is, when the movable pressing driving member 220 rotates to a predetermined angle interval relative to the intermediate shell 210, the sliding limiting push block 230 is separated from the rotating engagement member 240 and abuts against the first support body 110. The movable pressing driving member 220 is continuously pressed downward to make the sliding limiting push block 230 push the first support body 110 to slide. Since the first sliding engagement member 120 is engaged with the rotating engagement member 240, the rotating engagement member 240 rotates and drives the second sliding engagement member 320 to slide relative to the intermediate shell 210, so that the first support body 110 and the second support body 310 slide synchronously. Specifically, the first support body 110 is pushed to slide by the sliding limiting push block 230, the second support body 310 is driven to slide by the rotating engagement member 240, and the first support body 110 and the second support body 310 slide synchronously, which can quickly adjust the clamping position and has high convenience in adjusting the clamping force, and has higher adaptability to people with different head shapes.

[0046] As shown in Figure 5 In one embodiment, the first support body 110 and the second support body 310 are connected relative to the intermediate shell 210. It can be understood that the first support body 110 is connected with the first sliding engagement member 120, and the second support body 310 is connected with the second sliding engagement member 320. The first support body 110 slides under the pushing of the sliding limiting push block 230, that is, the first support body 110 is connected relative to the intermediate shell 210. Further, the first sliding engagement member 120 drives the rotating engagement member 240 to rotate, and the rotating engagement member 240 drives the second sliding engagement member 320 to slide, so that the second support body 310 slides, that is, the second support body 310 is connected relative to the intermediate shell 210.

[0047] As shown in Figure 3 and Figure 4As shown, in one embodiment, the sliding limiting push block 230 comprises a first elastic element 231, two ends of the first elastic element 231 abut against the sliding limiting push block 230 and the intermediate shell 210 respectively, when the sliding limiting push block 230 is away from the rotating engaging member 240 to compress the first elastic element 230, the first support body 110 slides relative to the intermediate shell 210; it can be understood that when the movable pressure driving member 220 is pressed down, the sliding limiting push block 230 is forced to slide in the horizontal direction and compress the second elastic element 231, when the sliding limiting push block 230 slides to the corresponding position, the sliding limiting push block 230 is away from the rotating engaging member 240, that is, the sliding limiting push block 230 is not clamped with the rotating engaging member 240, the first support body 110 is forced to slide.

[0048] When the first support body slides relative to the intermediate shell, the first sliding engaging member drives the rotating engaging member to rotate, the rotating engaging member drives the second sliding engaging member to slide, to drive the second support body to slide relative to the intermediate shell. It can be understood that since the first support body 110 is connected with the first sliding engaging member 120, the first support body 110 sliding drives the first sliding engaging member 120 to slide, since the first sliding engaging member 120 and the second sliding engaging member 320 are engaged with the rotating engaging member 240, the first sliding engaging member 120 sliding drives the rotating engaging member 240 to rotate, so that the rotating engaging member 240 drives the second sliding engaging member 320 to slide, and since the second sliding engaging member 320 is connected with the second support body 310, that is, the second sliding engaging member 320 sliding drives the second support body 310 to slide relative to the intermediate shell 210. In this embodiment, the first elastic element 231 is a spiral spring or an elastic rubber sleeve.

[0049] As Figures 3 to 5As shown in the drawings, in one of the embodiments, the first support body 110 further comprises a second elastic element 111 compressed between the intermediate housing 210 and the first support body 110, and the second elastic element 111 is used to stretch and drive the first support body 110 to slide relative to the intermediate housing 210 when the first elastic element is compressed by the sliding limiting push block 230 moving away from the rotating engaging member 240. It can be understood that the second elastic element 111 is in contact between the intermediate housing 210 and the second support body, and the initial state of the second elastic element 111 is in a compressed state. When the sliding limiting push block 230 is horizontally slid under the pushing of the movable pressure driving member 220, the sliding limiting push block 230 moves away from the rotating engaging member 240 when it reaches the corresponding position, at this time, the rotating engaging member 240 is no longer clamped with the sliding limiting push block 230, and the intermediate housing 210 is fixed, at this time, the compressed second elastic element 111 will generate a elastic force on the first support body 110, so that the first support body 110 is forced to slide. Specifically, when the rotating engaging member 240 is not clamped with the sliding limiting push block 230, the second elastic element 111 is stretched, and since one end of the second elastic element 111 is in contact with the intermediate housing 210, the intermediate housing 210 cannot move, so that the second elastic element 111 generates an elastic force on the first support body 110, and the first support body 110 slides. In this embodiment, the second elastic element 111 is a spiral spring or an elastic rubber sleeve.

[0050] As shown in the drawings, Figure 8 and Figure 9 In one of the embodiments, the sliding limiting push block 230 further comprises a sliding part 233 and a limiting part 232 connected with each other, the sliding part 233 is elastically connected with the first elastic element 231, and the sliding part 233 is in contact with the movable pressure driving member 220, and the limiting part 232 is movably connected with the rotating engaging member 240.

[0051] In this embodiment, when the movable pressure driving member 220 is pressed, the sliding part 233 slides under the driving of the movable pressure driving member 220, and when the sliding part 233 reaches the corresponding position, the limiting part 232 moves away from the rotating engaging member 240, at this time, the sliding part 233 continues to slide and pushes the first support body 110 to slide, since the first support body 110 is connected with the first sliding engaging member 120, the first support body 110 slides at the same time, and the first sliding engaging member 120 slides at the same time, and the first sliding engaging member 120 is engaged with the rotating engaging member 240, since the limiting part 232 moves away from the rotating engaging member 240, the first sliding engaging member 120 slides at the same time, and the rotating engaging member 240 rotates.

[0052] As shown in the drawings, Figure 8 and Figure 9As shown, in one embodiment, the rotating engaging member 240 comprises a first rotating engaging part 241 and a second rotating engaging part 242 connected together, the first rotating engaging part 241 is engaged with the first sliding engaging member 120 and the second sliding engaging member 320 respectively, and the second rotating engaging part 242 is movably connected with the limiting part 232.

[0053] In the embodiment, the first rotating engaging part 241 and the second rotating engaging part 242 are integrally formed, i.e. the first rotating engaging part 241 and the second rotating engaging part 242 rotate synchronously or are static synchronously. It can be understood that the first rotating engaging part 241 is above the second rotating engaging part 242, the first rotating engaging part 241 is engaged with the first sliding engaging member 120 and the second sliding engaging member 320 respectively, and the limiting part 232 of the sliding limiting push block 230 is clamped with the second rotating engaging part 232 when static, when the finger presses the movable pressure driving member 220 to press down, the limiting part 232 slides to the corresponding position, the limiting part 232 is no longer clamped with the first rotating engaging part 241, at this time, the sliding limiting push block 230 continues to slide and drives the first support body 110 to slide, the first support body 110 drives the first sliding engaging member 120 to slide, because the first sliding engaging member 120 is engaged with the first rotating engaging part 241, the first sliding engaging member 120 drives the first rotating engaging part 241 to rotate while sliding, the first rotating engaging part 241 drives the second sliding engaging member 320 to slide, so as to realize the synchronous sliding of the first support body 110 and the second support body 310.

[0054] Further, when the first support body 110 and the second support body 310 slide to the appropriate position, at this time, the finger is released, because the movable pressure driving member 220 is elastically abutted with the rotating engaging member 240, the movable pressure driving member 220 is reset under the elastic driving, and further the sliding limiting push block 230 is also reset, when the movable pressure driving member 220 returns to the initial position, the limiting part 232 of the sliding limiting push block 230 is clamped with the second rotating engaging part 242, at this time, the second rotating engaging part 242 stops rotating, and the first rotating engaging part 241 also stops rotating, and further the first support body 110 and the second support body 310 stop sliding, i.e. the adjustment of the clamping position of the head-mounted telescopic structure 10 is completed.

[0055] Of course, in other embodiments, the first rotating engaging part 241 can also be movably connected with the limiting part 232 of the sliding limiting push block 230, and the second rotating engaging part 242 is engaged with the first sliding engaging member 120 and the second sliding engaging member 320 respectively, so as to realize the synchronous sliding of the first support body 110 and the second support body 310.

[0056] As shown in FIG. 1, the head-mounted telescopic structure 10 comprises a first support body 110, a second support body 310, a first sliding engaging member 120, a second sliding engaging member 320, a movable pressure driving member 220, a sliding limiting push block 230, and a rotating engaging member 240. Figure 5 and Figure 6As shown, in one of the embodiments, the first sliding engagement member 120 and the second sliding engagement member 320 are both rack engagement structures, and the first sliding engagement member 120 and the second sliding engagement member 320 are formed with a receiving gap 120a, and the movable pressing driving member 220 and the rotating engagement member 240 are both arranged in the receiving gap 120a. It can be understood that the first sliding engagement member 120 and the second sliding engagement member 320 are arranged in a spaced manner to form the receiving gap 120a, and the rotating engagement member 240 is engaged with the first sliding engagement member 120 and the second sliding engagement member 320 respectively. The movable pressing driving member 220 is pressed to drive the sliding limiting push block 230 to slide, so that the sliding limiting push block 230 is away from the rotating engagement member 240, and the first support body 110 is slid under the elastic force of the second elastic element 111, the first support body 110 is slid to drive the rotating engagement member 240 to rotate, and the rotating engagement member 240 is rotated to drive the second support body 310 to slide, so as to realize the synchronous sliding of the first support body 110 and the second support body 310.

[0057] In the embodiment, the first sliding engagement member 120 and the second sliding engagement member 320 are both rack engagement structures, so that the first sliding engagement member 120 and the second sliding engagement member 320 are engaged with the rotating engagement member 240. Of course, the first sliding engagement member 120 and the second sliding engagement member 320 can also be other engagement structures, for example, the first sliding engagement member 120 and the second sliding engagement member 320 are both gear engagement structures, which can also realize the above-mentioned effect.

[0058] As shown, Figures 7 to 9 In one of the embodiments, the movable pressing driving member 220 comprises a movable pressing driving member body 221 and a third elastic element 222 connected with each other, the movable pressing driving member body 221 is rotationally connected with the intermediate shell 210, and the third elastic element 222 is elastically connected with the rotating engagement member 240 and the intermediate shell 210 respectively, so that the movable pressing driving member 220 is reset when the finger is away.

[0059] It can be understood that the third elastic element 222 is a spring. When the finger presses the movable pressure driving member body 221 downward, the spring is in a compressed state. The movable pressure driving member body 221 pushes the sliding limiting push block 230 to slide, so that the first support body 110 and the second support body 310 slide synchronously, thereby adjusting the clamping position of the head-mounted telescopic structure 10. When the finger is away from the movable pressure driving member body 221, the spring starts to stretch, so that the movable pressure driving member body 221 starts to reset, thereby making the sliding limiting push block 230 reset. When the spring is fully stretched, the movable pressure driving member body 221 returns to the initial position, and the sliding limiting push block 230 also returns to the initial position, that is, the limiting part 232 of the sliding limiting push block 230 is clamped with the rotary engaging part 240, so that the rotary engaging part 240 stops rotating, thereby making the first support body 110 and the second support body 310 stop sliding.

[0060] In the embodiment, the center axis of the third elastic element 222 and the rotation center of the rotary engaging part 240 are located on the same straight line, that is, the third elastic element 222 is located directly above the rotary engaging part 240, that is, the third elastic element 222 is also located in the accommodation gap 221a. In this way, the structure of the head-mounted telescopic structure 10 is more compact, and the space utilization rate is higher. In the embodiment, the third elastic element 222 is a spiral spring or an elastic rubber sleeve.

[0061] In one of the embodiments, the movable pressure driving member is provided with a first inclined abutting surface 221a, and the sliding limiting push block 230 is provided with a second inclined abutting surface 233a. The first inclined abutting surface 221a and the second inclined abutting surface 233a are correspondingly arranged, so that the movable pressure driving member 220 drives the sliding limiting push block 230 to slide horizontally when it is pressed downward. It can be understood that when the movable pressure driving member 220 is pressed downward, the movable pressure driving member 200 will generate an inclined downward thrust on the sliding limiting push block 230. The first inclined surface 221a and the second inclined surface 233a cooperate to reduce the force in the vertical direction on the sliding limiting push block 230, thereby reducing the frictional force on the sliding limiting push block 230, and thereby making the sliding limiting push block 230 more easily slide in the horizontal direction.

[0062] The application also provides a headset, which comprises a first ear cover, a second ear cover and the headset telescopic structure 10 of any of the above embodiments, the first ear cover is connected with the first support 100, and the second ear cover is connected with the second support 300. It can be understood that when the first ear cover and the second ear cover are respectively placed on both ears, the movable pressure driving piece 220 located in the middle headset mechanism 200 is pressed at this time, the movable pressure driving piece 220 drives the sliding limiting push block 230 to slide and leave the rotating engagement piece 240, the sliding limiting push block 230 abuts against the first support body 110 after sliding, thereby driving the first support body 110 to slide, the first support body 110 drives the rotating engagement piece 240 to rotate, the rotating engagement piece 240 drives the second support body 310 to slide, so that the first support body 110 and the second support body 310 slide synchronously, and then the first ear cover connected with the first support body 110 and the second ear cover connected with the second support body 310 clamp the ears of a person. When the clamping force is moderate, the movable pressure driving piece 220 is released, so that the movable pressure driving piece 220 and the sliding limiting push block 230 are reset, the sliding limiting push block 230 returns to the initial position and is clamped with the rotating engagement piece 240, so that the rotating engagement piece 240 stops rotating, and then the first support body 110 and the second support body 310 stop sliding, that is, the clamping force adjustment operation is completed, the function of quickly adjusting the clamping position is realized, and the operation of adjusting the clamping position is relatively convenient.

[0063] Compared with the prior art, the application has at least the following advantages:

[0064] The headset telescopic structure, the first support body is connected with the first sliding engagement piece, the second support body is connected with the second sliding engagement piece, the rotating engagement piece is engaged with the first sliding engagement piece and the second sliding engagement piece respectively, when the movable pressure driving piece is pressed down, one end of the movable pressure driving piece adjacent to the limiting sliding push block slides forward, when sliding to a preset position, that is, the movable pressure driving piece rotates to a predetermined angle interval relative to the middle shell, the limiting sliding push block leaves the rotating engagement piece and abuts against the first support body, the movable pressure driving piece continues to be pressed down, so that the limiting sliding push block drives the first support body to slide, because the first sliding engagement piece is engaged with the rotating engagement piece, so that the rotating engagement piece rotates and drives the second sliding engagement piece to slide relative to the middle shell, so that the first support body and the second support body slide synchronously. Specifically, the first support body is driven to slide by the limiting sliding push block, the second support body is driven to slide by the rotating engagement piece, the first support body and the second support body slide synchronously, the clamping position can be quickly adjusted, the convenience of adjusting the clamping force is higher, and the adaptability to different head shapes of people is higher.

[0065] The above embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on 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, several modifications and improvements can be made, which are within the scope of protection of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A telescopic headgear structure, comprising a first support, a middle headgear mechanism, and a second support connected in sequence, characterized in that, The first bracket includes a first bracket body and a first sliding engagement member connected to each other, and the second bracket includes a second bracket body and a second sliding engagement member connected to each other, wherein the first sliding engagement member and the second sliding engagement member are disposed opposite to each other; The intermediate head-mounted mechanism includes an intermediate housing, a movable pressure-applying drive, a sliding limit push block, and a rotary engagement component. The movable pressure-applying drive is elastically rotatably connected to the intermediate housing, and the sliding limit push block is elastically slidably connected to the intermediate housing. The movable pressure-applying drive is used to drive the sliding limit push block to slide relative to the intermediate housing when it rotates to a predetermined angle range. The movable pressure-applying drive is elastically abutting against the rotary engagement component. One end of the rotary engagement component is rotatably disposed on the intermediate housing, and the rotary engagement component is used to rotate relative to the intermediate housing when the sliding limit push block leaves the rotary engagement component. The rotating engagement member engages with the first sliding engagement member and the second sliding engagement member respectively to drive the first support body and the second support body to move relative to the intermediate shell, so that the first support body slides under the drag of the sliding limit push block, and the first sliding engagement member drives the rotating engagement member to rotate. When one end of the active pressure driving component rotates relative to the intermediate housing to a preset angle range, the active pressure driving component drives the sliding limit push block to disengage from the rotating engagement component and drives the sliding limit push block to push the first bracket body to slide. The sliding limit push block includes a first elastic element, and the two ends of the first elastic element abut against the sliding limit push block and the intermediate shell respectively; When the sliding limit push block disengages from the rotating engagement member to compress the first elastic element, the first bracket body slides relative to the intermediate housing. When the first support body slides relative to the intermediate housing, the first sliding engagement member drives the rotating engagement member to rotate, and the rotating engagement member drives the second sliding engagement member to slide, thereby driving the second support body to slide relative to the intermediate housing; The first support body further includes a second elastic element, which is compressed and abuts against the intermediate housing and the first support body. The second elastic element is used to extend and drive the first support body to slide relative to the intermediate housing when the sliding limit push block disengages from the rotating engagement member to compress the first elastic element. The sliding limit push block also includes a sliding part and a limiting part connected to each other. The sliding part is elastically connected to the second elastic element, the sliding part abuts against the movable pressure driving member, and the limiting part is movably connected to the rotating engagement member.

2. The head-mounted telescopic structure according to claim 1, characterized in that, The first support body and the second support body are slidably connected relative to the intermediate shell.

3. The head-mounted telescopic structure according to claim 1, characterized in that, The rotating engagement member includes a first rotating engagement portion and a second rotating engagement portion connected to each other. The first rotating engagement portion engages with the first sliding engagement member and the second sliding engagement member respectively, and the second rotating engagement portion is movably connected to the limiting portion.

4. The head-mounted telescopic structure according to claim 1, characterized in that, Both the first sliding engagement member and the second sliding engagement member are rack and pinion engagement structures, and the first sliding engagement member and the second sliding engagement member form a receiving gap. The movable pressure driving member and the rotating engagement member are both inserted through the receiving gap.

5. The head-mounted telescopic structure according to claim 1, characterized in that, The movable pressure driving component includes a movable pressure driving component body and a third elastic element connected together. The movable pressure driving component body is rotatably connected to the intermediate housing, and the third elastic element is elastically connected to the rotating engagement component and the intermediate housing respectively.

6. The head-mounted telescopic structure according to claim 1, characterized in that, The movable pressure driving component has a first inclined abutment surface, and the sliding limit push block has a second inclined abutment surface. The first inclined abutment surface and the second inclined abutment surface are respectively arranged so that when the movable pressure driving component presses down, it drives the sliding limit push block to slide horizontally.

7. A headset, comprising a first ear cup, a second ear cup, and a headband telescopic structure as described in any one of claims 1 to 6, wherein the first ear cup is connected to a first support, and the second ear cup is connected to a second support.

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