CN115623374A - Head-mounted display device - Google Patents

Abstract

The embodiment of the application provides a head-mounted display device, head-mounted display device includes casing, bone conduction earphone and elastic support, elastic support set up in the casing, the first end of bone conduction earphone passes through elastic support butt in the casing. Under the condition that bone conduction earphone is in the vocal position, bone conduction earphone's second end is located the outside of casing, and bone conduction earphone's second end is used for being close to wearer's skin, so that the sound production piece realizes the bone conduction sound production, guarantees wear display device's sound production effect.

Description

Head-mounted display device

Technical Field

This application belongs to and wears equipment technical field, specifically, this application relates to a wear display device.

Background

With the continuous improvement of the display effect and the carrying convenience of the user on the display device, more and more head-mounted display devices enter the life of the user.

Taking VR glasses as an example, in order to strengthen the immersive experience of the user in the use process, the VR glasses are provided with loudspeaker units. However, the speaker generally transmits sound through air, and when the sound outlet of the speaker is far away from the ear of the user, the audible volume of the user is small, which may affect the auditory experience of the user; if the volume of the loudspeaker is increased, the volume which can be heard by a user can be increased, but the conversation content is easy to be clearly heard by people nearby in the conversation process, the conversation privacy is poor, the vibration of the loudspeaker can be increased, noise is easy to generate, and the service life of the loudspeaker can be influenced.

Disclosure of Invention

An object of the embodiment of this application is to provide a new technical scheme who wears display device, can solve the poor problem of traditional head-mounted display device sound production effect.

According to a first aspect of embodiments of the present application, there is provided a head-mounted display device including:

a housing;

the bone conduction earphone comprises a bone conduction earphone and an elastic support, wherein the elastic support is arranged in the shell, a first end of the bone conduction earphone is abutted against the shell through the elastic support, and a sound production piece is arranged at a second end of the bone conduction earphone;

wear display device to be in under the condition of display state, bone conduction earphone is in activity to the sound production position under the condition of elastic support deformation, bone conduction earphone's second end is located the outside of casing is used for being close to wearer's skin, so that the sound production piece carries out the bone conduction sound production.

Optionally, the housing includes a first sidewall and a second sidewall that are disposed opposite to each other, and the elastic bracket is disposed between the first sidewall and the second sidewall and abuts the first end of the bone conduction earphone between the first sidewall and the elastic bracket.

Optionally, the elastic support comprises a support body and an elastic member, the elastic member abutting between the support body and the first end of the bone conduction headset.

Optionally, the bracket main body comprises an arc main body and a stop part connected to the edge of the arc main body;

the bone conduction earphone is characterized in that a matching part is arranged at the first end of the bone conduction earphone, the elastic part is abutted between the inner wall of the arc-shaped main body and the matching part, and the stop part is buckled on one side, away from the elastic part, of the matching part.

Optionally, a guide post is arranged on the bracket main body, and the elastic piece is sleeved on the guide post.

Optionally, a plurality of limiting grooves are formed in the inner wall of the first side wall, and limiting columns nested and matched with the limiting grooves are arranged on the first end of the bone conduction earphone in the circumferential direction;

under the condition that the first end of the bone conduction earphone moves towards the direction close to the second side wall, the first end of the bone conduction earphone compresses the elastic piece and enables the limiting column to be separated from the limiting groove, and the bone conduction earphone can rotate to the sounding position along the first end.

Optionally, a plurality of sets of limiting grooves are formed in the inner wall of the first side wall, each set of limiting grooves includes two oppositely-arranged limiting grooves, and two limiting columns are oppositely arranged on the first end of the bone conduction headset in the circumferential direction;

the two limiting columns can be respectively matched with one group of nesting in the plurality of groups of limiting grooves, so that the bone conduction earphone rotates to different sounding positions.

Optionally, a groove is arranged on the inner wall of the second side wall, and the groove has an arc-shaped bottom wall matched with the arc-shaped main body;

the arcuate bottom wall is configured to enable the bone conduction headset to deflect along the first end to the sound emitting position.

Optionally, the groove has two opposite limiting walls, and the arc-shaped main body is limited between the two opposite limiting walls.

Optionally, a limiting protrusion is arranged on the arc-shaped main body, and the limiting protrusion is used for abutting against the inner wall of the second side wall when the bone conduction headset deflects along the first end.

Optionally, the buffer further comprises a buffer member, and the buffer member is clamped between the groove and the arc-shaped main body.

Optionally, a through hole is formed in the first side wall, a pressing knob is arranged on the bone conduction headset, and the pressing knob extends out of the first side wall from the through hole;

and under the condition that the pressing knob is pressed, the pressing knob drives the first end of the bone conduction headset to move towards the direction close to the second side wall.

Optionally, the circumference of the pressing knob is provided with a texture structure, and the texture structure is used for driving the rotation of the pressing knob, so that the bone conduction earphone is accommodated between the first side wall and the second side wall.

One technical effect of the application lies in: the embodiment of the application provides a head-mounted display device, the head-mounted display device comprises a shell, a bone conduction earphone and an elastic support. Under the condition that bone conduction earphone is in the vocal position, bone conduction earphone's second end is located the outside of casing, and bone conduction earphone's second end is used for being close to wearer's skin, so that the sound production piece realizes the bone conduction sound production, guarantees wear display device's sound production effect.

Other features of the present application and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the application and together with the description, serve to explain the principles of the application.

Fig. 1 is a side view of a head-mounted display device provided in an embodiment of the present application;

fig. 2 is a side view (excluding a housing) of a head-mounted display device provided in an embodiment of the present application;

fig. 3 is a perspective view (excluding a housing) of a head-mounted display device provided in an embodiment of the present application;

fig. 4 is a perspective view of a bone conduction headset of a head-mounted display device according to an embodiment of the present application;

fig. 5 is a perspective view of an elastic support of a head-mounted display device according to an embodiment of the present application;

fig. 6 is a schematic diagram illustrating a bone conduction headset and an elastic support of a head-mounted display device according to an embodiment of the present disclosure;

fig. 7 is a schematic diagram illustrating the engagement of an elastic support and the engagement of a second sidewall of a head-mounted display device according to an embodiment of the present disclosure;

fig. 8 is a schematic view of a bone conduction headset of a head-mounted display device according to an embodiment of the present application when the bone conduction headset rotates;

fig. 9 is a process diagram of a bone conduction headset of a head-mounted display device according to an embodiment of the present application when the bone conduction headset rotates;

fig. 10 is a first schematic diagram illustrating a bone conduction headset of a head mounted display device according to an embodiment of the present application when the bone conduction headset deflects;

fig. 11 is a second schematic diagram of a bone conduction headset of a head mounted display device according to an embodiment of the present application when the bone conduction headset deflects;

fig. 12 is a first schematic diagram of a bone conduction headset of a head mounted display device according to an embodiment of the present application when rotating and deflecting;

fig. 13 is a second schematic diagram of a bone conduction headset of a head mounted display device according to an embodiment of the present application during rotation and deflection;

fig. 14 is an internal schematic view of a bone conduction headset of a head-mounted display device according to an embodiment of the present disclosure when the bone conduction headset is stored;

fig. 15 is a schematic view of a bone conduction headset of a head-mounted display device according to an embodiment of the present application when the bone conduction headset is stored.

Wherein:

1. a housing; 11. a first side wall; 111. a limiting groove; 112. a through hole; 12. a second side wall; 121. A groove; 1211. a limit wall; 2. a bone conduction headset; 21. a sound producing member; 22. a fitting portion; 23. A limiting column; 24. pressing the knob; 3. an elastic support; 31. a stent body; 311. an arc-shaped main body; 312. a stop part; 313. a guide post; 314. a limiting bulge; 32. an elastic member; 4. a buffer member; 5. and (3) wire rods.

Detailed Description

Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses.

Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as exemplary only and not as limiting. Thus, other examples of the exemplary embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be discussed further in subsequent figures.

Referring to fig. 1 to 15, an embodiment of the present application provides a head-mounted display device, including:

casing 1, bone conduction earphone 2 and elastic support 3, elastic support 3 set up in the casing 1, bone conduction earphone 2 has the first end and the second end of keeping away from each other, the first end of bone conduction earphone 2 passes through elastic support 3 butt in the casing 1, the second end of bone conduction earphone 2 is provided with sound production parts 21 such as speaker, bone conduction earphone 2 can realize the sound transmission of wear display device through sound production part 21.

When the first end of the bone conduction earphone 2 is abutted to the inner side of the shell 1 through the elastic support 3, the bone conduction earphone 2 can move relative to the shell 1 through the deformation of the elastic support 3. According to the use requirement (for example, under the condition that the head-mounted display device is in a display state), the bone conduction headset 2 moves to the sounding position under the condition that the elastic support 3 is deformed.

In an embodiment, for example, when the wearer uses the head-mounted display device, the wearer may manually apply pressure to the bone conduction headset 2, compress the elastic support 3 through the bone conduction headset 2 to enable the bone conduction headset 2 to be in a movable state, and then move the bone conduction headset 2 to a sound-emitting position by rotating or deflecting. Bone conduction earphone 2 is in under the condition of vocal position, the second end of bone conduction earphone 2 is located the outside of casing 1, and the second end of bone conduction earphone 2 is used for being close to wearer's skin, so that bone conduction sound production is realized to sound production piece 21, guarantees wear display device's sound production effect.

Specifically, the first end of bone conduction earphone 2 passes through 3 butt of elastic support in during in the casing 1, can form interference fit between elastic support 3 and bone conduction earphone 2 and the casing 1, behind the skin that the second end of bone conduction earphone 2 is close to the wearer, can be so that the second end of bone conduction earphone 2 passes through the skin butt to the skeleton of wearer, realize the bone conduction sound production of bone conduction earphone 2, improved when wearing display device's sound producing effect, avoided bone conduction earphone 2's sound leakage.

In addition, the head-mounted display device of the present application may be an XR device, that is, an imaging display device such as AR (augmented reality), VR (virtual reality), or MR (mixed reality); and the sounding part 21 can be connected to the main board in the housing 1 through the wire 5, so as to realize the sound-electricity conversion of the bone conduction earphone 2.

Optionally, referring to fig. 1, the housing 1 includes a first side wall 11 and a second side wall 12 which are oppositely disposed, the elastic support 3 is disposed between the first side wall 11 and the second side wall 12, and the first end of the bone conduction headset 2 is abutted between the first side wall 11 and the elastic support 3.

Specifically, the first side wall 11 and the second side wall 12 may be fastened to each other, snapped to each other, or detachably connected to each other by screws. A receiving cavity is formed between the first side wall 11 and the second side wall 12, and the first end of the bone conduction headset 2 and the elastic bracket 3 are located in the receiving cavity, so that the bone conduction headset 2 and the elastic bracket 3 can be conveniently detached and installed.

When the first end of the bone conduction earphone 2 abuts between the first side wall 11 and the elastic support 3, one side of the elastic support 3 may abut against the bone conduction earphone 2, and the other side of the elastic support 3 abuts against the inner wall of the second side wall 12, that is, the first end of the bone conduction earphone 2 and the elastic support 3 are clamped by the first side wall 11 and the second side wall 12, so that the stability of the activity of the bone conduction earphone 2 is ensured on the basis of forming protection for the bone conduction earphone 2 and the elastic support 3.

Optionally, referring to fig. 1 to 3, the elastic support 3 includes a support main body 31 and an elastic member 32, and the elastic member 32 abuts between the support main body 31 and the first end of the bone conduction headset 2.

Specifically, when the elastic member 32 abuts between the holder main body 31 and the first end of the bone conduction earphone 2, the elastic member 32 may respectively abut against the holder main body 31 and the first end of the bone conduction earphone 2 in a compressed state when the bone conduction earphone 2 is fixed at the sound emitting position, so as to ensure the stability of the setting of the bone conduction earphone 2.

And under the condition that bone conduction earphone 2 need move about to the sound production position, can make bone conduction earphone 2 be in movable state after 2 compression elastic component 32 of bone conduction earphone, then move about bone conduction earphone 2 to the sound production position through the mode of rotating or deflecting, so that sound production piece 21 realizes the bone conduction sound production, guarantees wear display device's sound production effect.

Alternatively, referring to fig. 4 and 5, the holder main body 31 includes an arc-shaped main body 311 and a stopper 312 connected to an edge of the arc-shaped main body 311;

the first end of the bone conduction earphone 2 is provided with a matching part 22, the elastic element 32 abuts between the inner wall of the arc-shaped main body 311 and the matching part 22, and the stop part 312 is buckled on one side of the matching part 22 far away from the elastic element 32.

Specifically, the stop portion 312 may be disposed at two ends of the arc-shaped main body 311 and both bent inward, the matching portion 22 is located at the first end of the bone conduction earphone 2 and is close to the second sidewall 12, when the elastic element 32 abuts between the inner wall of the arc-shaped main body 311 and the matching portion 22, the matching portion 22 may include an annular blocking wall located at the circumferential side thereof, so that the stop portion 312 is buckled at one side of the annular blocking wall far from the elastic element 32, that is, the elastic support 3 and the bone conduction earphone 2 may be tightly matched through the matching of the elastic element 32 and the stop portion 312, and the connection stability between the elastic support 3 and the bone conduction earphone 2 is ensured on the basis of facilitating the bone conduction earphone 2 to compress the elastic element 32.

Optionally, referring to fig. 5, the bracket body 31 is provided with a guide post 313, and the elastic member 32 may be sleeved on the guide post 313. Specifically, the inner wall of the arc-shaped main body 311 may be provided with a guide post 313, and the cross section of the guide post 313 may be a frame structure such as a cross or a m shape. When the elastic member 32 such as a spring is sleeved on the cross-shaped guide post 313, a clear guide can be provided for the deformation of the elastic member 32, and the elastic member 32 is prevented from deviating during the deformation; on the other hand, the weight of the guide column 313 can be reduced through the arrangement of the cross shape, and the light weight of the head-mounted display device is guaranteed.

Optionally, referring to fig. 6, 8 and 9, a plurality of limiting grooves 111 are formed on the inner wall of the first side wall 11, and a limiting column 23 nested in the limiting grooves 111 is circumferentially arranged at the first end of the bone conduction earphone 2;

when the first end of the bone conduction earphone 2 moves to a direction close to the second sidewall 12, the first end of the bone conduction earphone 2 compresses the elastic member 32 and makes the stopper post 23 escape from the stopper groove 111, and the bone conduction earphone 2 can rotate along the first end to the sound emitting position.

Specifically, referring to fig. 9a to 9b, when the bone conduction earphone 2 needs to be rotated to the sounding position, a force F may be applied to the first end of the bone conduction earphone 2, so that the first end of the bone conduction earphone 2 moves toward the second side wall 12, at this time, the first end of the bone conduction earphone 2 compresses the elastic element 32 and makes the limiting column 23 escape from the limiting groove 111, that is, at this time, the bone conduction earphone 2 may move in the X direction as shown in fig. 8; referring to fig. 9b to 9c, the wearer may manually pull the bone conduction headset 2 in the X direction, so that the bone conduction headset 2 rotates in the arrow direction of fig. 9c, that is, the bone conduction headset 2 may rotate to the sound emitting position along the first end.

Referring to fig. 9c to 9d, when the bone conduction earphone 2 rotates to the sounding position, the wearer may release the acting force applied to the bone conduction earphone 2, and at this time, the first end of the bone conduction earphone 2 may be pushed to move in the direction away from the second sidewall 12 by the elastic restoring force generated when the elastic element 32 is compressed, that is, the first end of the bone conduction earphone 2 may move in the direction shown by the arrow in fig. 9d, so that the limiting post 23 is embedded and matched with the limiting groove 111, and the stability of the bone conduction earphone 2 in the sounding position is ensured while the bone conduction earphone 2 is restored.

More importantly, through the rotation of bone conduction headset 2 along first end, can make the position of sound production piece 21 and the facial form of wearer carry out the adaptation regulation to make sound production piece 21 be close to the skin of wearer as far as possible, reduce the noise vibration of bone conduction headset 2, still strengthened the privacy of wearer when using the wear display device.

The rotation direction of the bone conduction earphone 2 may be clockwise or counterclockwise, which is not limited in the embodiment of the present application.

In one embodiment, referring to fig. 6, a plurality of sets of the limiting grooves 111 are disposed on the inner wall of the first side wall 11, each set of the limiting grooves 111 includes two opposite limiting grooves 111, and two opposite limiting posts 23 are disposed on the first end of the bone conduction headset 2 in the circumferential direction;

the two limiting columns 23 can be respectively nested and matched with one group of the limiting grooves 111, so that the bone conduction headset 2 can rotate to different sounding positions.

For example, the inner wall of the first side wall 11 is provided with three sets of limiting grooves 111 spaced in sequence, so that the different sets of limiting grooves 111 can be matched with the limiting posts 23 when the bone conduction earphone 2 rotates along the first end, that is, three different sounding positions can be obtained when the bone conduction earphone 2 rotates to three different angles, so as to improve the flexibility of the sounding part 21 in the position.

Alternatively, referring to fig. 7, 10 and 11, the inner wall of the second side wall 12 is provided with a groove 121, and the groove 121 has an arc-shaped bottom wall matched with the arc-shaped main body 311;

the arcuate bottom wall is configured to enable the bone conduction headset 2 to deflect along the first end to the sound emitting position.

Specifically, when the arc-shaped main body 311 is in abutting fit with the arc-shaped bottom wall of the groove 121, the arc-shaped main body 311 can be deflected along the arc direction of the arc-shaped bottom wall. For example, the wearer can manually pull the bone conduction headset 2 in the Y direction of fig. 10, so that the bone conduction headset 2 deflects in the direction of the arrow of fig. 11.

More importantly, the bone conduction headset 2 can be connected to two sides of the housing 1, when the head-mounted display device is worn, the bone conduction headset 2 can be arranged on two sides of the head of the wearer, and the deflection of the bone conduction headset 2 can change the distance of the sounding part 21 in the direction perpendicular to the head of the wearer, so that the bone conduction of sound transmission between the bone conduction headset 2 and different wearers is facilitated.

In addition, referring to fig. 12 and 13, by the cooperation between the bone conduction earphone 2 and the elastic support 3, the bone conduction earphone 2 can have the rotation in the X direction in fig. 8 and the deflection in the Y direction in fig. 10 at the same time, that is, the bone conduction earphone 2 can move in multiple directions as shown in fig. 12, and the flexibility of the movement of the bone conduction earphone 2 is improved.

Alternatively, referring to fig. 7, the groove 121 has two opposite limiting walls 1211, and the arc-shaped body 311 is limited between the two opposite limiting walls 1211.

Specifically, when the bone conduction earphone 2 compresses the elastic support 3 and makes the bone conduction earphone 2 in a movable state, in order to avoid the bone conduction earphone 2 from driving the elastic support 3 to rotate during the activity, the arc-shaped main body 311 can be clamped by the two limiting walls 1211, so that the stability of the elastic support 3 is ensured.

Optionally, referring to fig. 5, a limiting protrusion 314 is disposed on the arc-shaped body 311, and the limiting protrusion 314 is configured to abut against an inner wall of the second sidewall 12 when the bone conduction earphone 2 deflects along the first end.

Specifically, when the arc main body 311 deflects along the radian direction of the arc bottom wall, in order to avoid the arc main body 311 from toppling over when the deflection angle is too large, the arc main body 311 can be abutted against the inner wall of the second side wall 12 through the limiting protrusion 314 when the deflection angle of the arc main body 311 is large, so as to ensure the deflection stability of the arc main body 311.

The deflection angle of the arc-shaped main body 311 can be set according to the height of the limiting protrusion 314, so as to flexibly limit the maximum deflection angle of the bone conduction earphone 2 along the first end, and avoid the damage to the head-mounted display device caused by excessive deflection.

Optionally, referring to fig. 1 and 2, the head-mounted display device further includes a buffer 4, and the buffer 4 is sandwiched between the groove 121 and the arc-shaped body 311. The buffer member 4 may be specifically made of materials with buffering and damping properties, such as silicon rubber or plastics, so as to ensure stability of the arc main body 311 when deflecting along the radian direction of the arc bottom wall.

Optionally, referring to fig. 8, a through hole 112 is formed in the first side wall 11, a pressing knob 24 is formed on the bone conduction earphone 2, and the pressing knob 24 protrudes from the through hole 112 out of the first side wall 11;

when the pressing knob 24 is pressed, the pressing knob 24 drives the first end of the bone conduction earphone 2 to move toward the second sidewall 12.

Specifically, the pressing knob 24 may be disposed at a side of the first end of the bone conduction headset 2 away from the fitting part 22. When the pressing knob 24 extends out of the first sidewall 11 from the through hole 112, that is, the pressing knob 24 can be directly exposed from the housing 1 of the head-mounted display device, so that the wearer can drive the first end of the bone conduction headset 2 to move towards the direction close to the second sidewall 12 by pressing the pressing knob 24, thereby realizing the flexible rotation of the bone conduction headset 2.

Optionally, referring to fig. 3, 14 and 15, a circumferential direction of the pressing knob 24 is provided with a texture for driving the pressing knob 24 to rotate, so that the bone conduction earphone 2 is received between the first side wall 11 and the second side wall 12.

Specifically, the circumferential texture of the pressing knob 24 may be a stripe-shaped texture or a wave-shaped texture to increase the friction when the wearer rotates the pressing knob 24. When the head-mounted display device is not used, for example, when the head-mounted display device does not need to generate sound, the bone conduction headset 2 may be accommodated in the housing 1, specifically, the bone conduction headset 2 may be rotated by 90 ° after the push knob 24 is pressed, so that the bone conduction headset 2 is accommodated between the first side wall 11 and the second side wall 12, thereby enhancing the portability of the head-mounted display device.

Although some specific embodiments of the present application have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present application. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the present application. The scope of the application is defined by the appended claims.

Claims (13)

1. A head-mounted display device, comprising:

a housing (1);

the bone conduction earphone comprises a bone conduction earphone (2) and an elastic support (3), wherein the elastic support (3) is arranged in a shell (1), a first end of the bone conduction earphone (2) is abutted to the shell (1) through the elastic support (3), and a sounding part (21) is arranged at a second end of the bone conduction earphone (2);

wear display device to be in under the condition of display state, bone conduction earphone (2) are in move about to the sound production position under the condition of elastic support (3) deformation, the second end of bone conduction earphone (2) is located the outside of casing (1) and is used for being close to wearer's skin, so that sound production piece (21) carry out the bone conduction sound production.

2. The head mounted display device according to claim 1, wherein the housing (1) comprises a first sidewall (11) and a second sidewall (12) arranged oppositely, the elastic support (3) is arranged between the first sidewall (11) and the second sidewall (12), and the first end of the bone conduction headset (2) is abutted between the first sidewall (11) and the elastic support (3).

3. Head mounted display device according to claim 2, characterized in that the elastic support (3) comprises a support body (31) and an elastic member (32), the elastic member (32) abutting between the support body (31) and the first end of the bone conduction headset (2).

4. The head-mounted display device according to claim 3, wherein the stand main body (31) comprises an arc-shaped main body (311) and a stopper portion (312) connected to an edge of the arc-shaped main body (311);

the bone conduction headset is characterized in that a matching part (22) is arranged at the first end of the bone conduction headset (2), the elastic part (32) abuts between the inner wall of the arc-shaped main body (311) and the matching part (22), and the stop part (312) is buckled on one side, away from the elastic part (32), of the matching part (22).

5. The head-mounted display device according to claim 3, wherein the bracket main body (31) is provided with a guide post (313), and the elastic member (32) is sleeved on the guide post (313).

6. The head-mounted display device according to claim 4, wherein a plurality of limiting grooves (111) are formed in the inner wall of the first side wall (11), and a limiting column (23) nested in the limiting grooves (111) is arranged at the first end of the bone conduction earphone (2) in the circumferential direction;

under the condition that the first end of the bone conduction headset (2) moves towards the direction close to the second side wall (12), the first end of the bone conduction headset (2) compresses the elastic piece (32) and enables the limiting column (23) to be pulled out of the limiting groove (111), and the bone conduction headset (2) can rotate along the first end to the sounding position.

7. The head-mounted display device according to claim 6, wherein a plurality of sets of the limiting grooves (111) are arranged on the inner wall of the first side wall (11), each set of the limiting grooves (111) comprises two oppositely-arranged limiting grooves (111), and two limiting columns (23) are arranged on the first end of the bone conduction earphone (2) in a circumferential direction;

the two limiting columns (23) can be respectively matched with one group of the limiting grooves (111) in a nested mode, so that the bone conduction headset (2) can rotate to different sounding positions.

8. The head-mounted display device according to claim 4, wherein the inner wall of the second sidewall (12) is provided with a groove (121), the groove (121) having an arc-shaped bottom wall cooperating with the arc-shaped body (311);

the arcuate bottom wall is configured to enable the bone conduction headset (2) to deflect along the first end to the sound emitting position.

9. The head-mounted display device according to claim 8, wherein the groove (121) has two opposite limiting walls (1211), and the arc-shaped body (311) is limited between the two opposite limiting walls (1211).

10. The head-mounted display device according to claim 8, wherein the arc-shaped body (311) is provided with a limiting protrusion (314), and the limiting protrusion (314) is used for abutting against the inner wall of the second side wall (12) when the bone conduction headset (2) deflects along the first end.

11. The head mounted display device according to claim 8, further comprising a buffer member (4), wherein the buffer member (4) is sandwiched between the groove (121) and the arc-shaped body (311).

12. The head mounted display device according to claim 2, wherein a through hole (112) is provided on the first side wall (11), a pressing knob (24) is provided on the bone conduction headset (2), and the pressing knob (24) protrudes from the through hole (112) out of the first side wall (11);

under the condition that the pressing knob (24) is pressed, the pressing knob (24) drives the first end of the bone conduction earphone (2) to move towards the direction close to the second side wall (12).

13. The head-mounted display device according to claim 12, wherein a circumferential direction of the pressing knob (24) is provided with a texture, and the texture is used for driving the pressing knob (24) to rotate, so that the bone conduction earphone (2) is accommodated between the first side wall (11) and the second side wall (12).

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