CN114647087B

CN114647087B - Forehead support structure and head display equipment

Info

Publication number: CN114647087B
Application number: CN202210257860.8A
Authority: CN
Inventors: 叶光照
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2022-03-14
Filing date: 2022-03-14
Publication date: 2024-11-15
Anticipated expiration: 2042-03-14
Also published as: CN114647087A

Abstract

The present application relates to a forehead support structure and a head-mounted display device, wherein the forehead support structure comprises a shell, a support member, a positioning member and a locking member, wherein the support member is movably connected to the shell, and the angle at which the support member is tilted relative to the shell toward the display side of the head-mounted display device is adjustable, the positioning member is connected to the shell and has a locking portion, the locking member is connected to the shell, the locking member has a holding portion, and the locking member has a locked state and an unlocked state, and when the locking member is in the locked state, the holding portion cooperates with the stopping portion to limit the movement of the support member relative to the shell toward the side facing away from the display side. The forehead support structure and the head-mounted display device of the present application can adaptively hold the forehead of the user by using the support member, and stably lock the position of the support member by using the cooperation between the holding portion and the stopping portion, thereby improving the support stability of the support member, ensuring that the forehead support structure provides stable support force for the head-mounted display device and is not prone to loosening, so as to share the force of the head-mounted display device and improve wearing comfort and user experience.

Description

Forehead supporting structure and head display equipment

Technical Field

The application relates to the technical field of head display equipment, in particular to a forehead support structure and head display equipment.

Background

Virtual Reality (VR) and augmented Reality (Augmented Reality, AR) technologies can bring a user with almost the same visual perception as a real scene, and are a popular research field at present. To enable users to better experience VR and AR technology, VR and AR are typically displayed using head-mounted devices.

The head display device is a wearable device worn on the head of a user, and a display screen for VR or AR display is located in front of eyes of the user after wearing. Corresponding contents are displayed in the display module in the head display device in the areas corresponding to the left eye and the right eye of the user, so that the user can experience the display effect of VR or AR.

The head display equipment is worn in an auxiliary mode by the aid of the lacing, the head display equipment is supported by means of the lacing alone, and the weight born by the lacing is heavier locally, so that the weight of the head display equipment cannot be shared in an overall balanced mode, and people wear the head display equipment uncomfortable.

Disclosure of Invention

The application provides a forehead support structure and a head display device comprising the forehead support structure, which are used for solving the technical problem of how to improve wearing comfort.

In a first aspect, an embodiment of the present application provides a forehead support structure for providing a support force when wearing a head-display device, the forehead support structure including:

A housing;

The support piece is movably connected with the shell, and is inclined towards the display side of the head display device relative to the shell and adjustable in inclination angle;

the positioning piece is connected with the shell and is provided with a clamping part;

The locking piece is in linkage connection with the support piece, the locking piece has a clamping portion, the locking piece has locking state and unlocking state, when the locking piece is in the locking state, the clamping portion with the clamping portion cooperatees in order to restrict the support piece is relative the casing is towards the side of showing the side dorsad, when the locking piece is in the unlocking state, the clamping portion with the clamping portion separation is in order to release the restriction to the support piece.

On the other hand, the embodiment of the application provides a head display device, which comprises a main body structure, a head band and the forehead support structure, wherein the main body structure is connected with the head band, the forehead support structure is connected with the main body structure, and when the head band is worn on the head of a user, the support piece is used for propping against the forehead of the user.

In the embodiment of the application, the forehead support structure comprises the shell, the support, the positioning piece and the locking piece, wherein the inclination angle of the support relative to the shell towards the display side of the head display device is adjustable, so that when a user wears the head display device with the forehead support structure, the user can support against the forehead of the user by using the support to share the stress of the head display device, the wearing comfort level is improved, and meanwhile, the locking piece and the positioning piece can lock the support, so that after the inclination angle of the support relative to the main structure is adjusted, the position of the support can be stably locked, the support stability of the support is improved, the forehead support structure is ensured to provide stable support force for the head display device, the head display device is not easy to loose, and the wearing comfort level and the user experience are improved.

Drawings

In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view showing a wearing state of a head display device according to an embodiment;

FIG. 2 is an exploded view of a head-mounted display device according to an embodiment;

FIG. 3 is an enlarged partial schematic view of a circled portion of the head display device shown in FIG. 2;

FIG. 4 is a schematic side view of a head display device according to an embodiment, showing that a larger gap exists between a support member and a forehead before an inclination angle of the support member is adjusted;

FIG. 5 is a schematic side view of the wearing state of the head display device according to an embodiment, in which the support member abuts against the forehead after the inclination angle of the support member is adjusted;

fig. 6 is a schematic perspective view of a head display device according to another embodiment;

fig. 7 is a schematic perspective view of a head display device according to still another embodiment;

FIG. 8 is a schematic perspective view of a forehead support structure of a head display device according to one embodiment;

FIG. 9 is a partially exploded view of the forehead support structure shown in FIG. 8;

FIG. 10 is a schematic front view of a head-up display device according to an embodiment;

FIG. 11 is a schematic cross-sectional view of the head-mounted display device shown in FIG. 10, taken along line I-I, wherein the locking member is in a locked state;

FIG. 12 is an enlarged schematic view of a portion of the circled structure of FIG. 11;

FIG. 13 is a schematic cross-sectional view of the head display device according to an embodiment when the locking member is in the unlocked state;

FIG. 14 is an enlarged schematic view of a portion of the circled portion of the structure of FIG. 13;

FIG. 15 is a schematic perspective view of a forehead support structure of a head display device according to another embodiment;

FIG. 16 is a schematic perspective view of a forehead support structure of a head display device according to another embodiment;

FIG. 17 is a schematic perspective view of another view of a head-display device according to an embodiment;

Fig. 18 is an exploded structural view of a housing of a main body structure of the head display device of an embodiment;

Fig. 19 is a schematic view showing an installation structure of a display module in the head display device according to an embodiment.

Reference numerals:

100. A head display device; 10. a main body structure; 11. a housing; 11a, holes; 11b, an empty-avoiding groove; 111. a face shell; 112. a face mask; 112a, a flexible pad; 12. a display module; 12a, a first display module; 12b, a second display module; 12c, a bracket; 121. a lens group; 122. a bracket; 113. a housing; 14. pupil distance adjusting component; 141. a mounting plate; 142. an adjusting gear; 143. a driving member; 20. a headband; 21. a left headband; 22. a right headband; 30. a forehead support structure; 31. a support; 31a, a rotating shaft; 32. a movable seat; 32a, shaft holes; 32b, a slot; 33. a positioning piece; 33a, a locking part; 33b, a chute; 34. a locking member; 341. a clamping part; 342. an elastic part; 35. a connecting rod; 35a, a shaft pin; 351. bending sections; 36. a support base; 36a, a sliding protrusion; 36b, positioning bosses; 36c, inserting blocks; 361. a first arm; 362. a second arm; 363. a connection part; 37. an elastic member; 38. a cushion; 39. extruding a base; 39a, a nip; 40. a power supply; 40a, mounting shell.

Detailed Description

In order that the application may be readily understood, a more complete description of the application will be rendered by reference to the appended drawings. Preferred embodiments of the present application are shown in the drawings. This application 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.

While this application is susceptible of embodiment in different forms, there is shown in the drawings and will herein be described in detail, specific embodiments thereof with the understanding that the present disclosure is to be considered as an exemplification of the principles of the disclosure and is not intended to limit the application to that as illustrated.

Thus, rather than implying that each embodiment of the present application must have the characteristics described, one of the characteristics described in this disclosure will be used to describe one embodiment of the present disclosure. Furthermore, it should be noted that the present application describes a number of features. Although certain features may be combined together to illustrate a possible system design, such features may be used in other combinations not explicitly described. Thus, unless otherwise indicated, the illustrated combinations are not intended to be limiting.

In the embodiment shown in the drawings, indications of orientation (such as up, down, left, right, front and rear) are used to explain the structure and movement of the various elements of the application are not absolute but relative. These descriptions are appropriate when these elements are in the positions shown in the drawings. If the description of the position of these elements changes, the indication of these directions changes accordingly.

In the description of the present application, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

It will be understood that when an element is referred to as being "fixed" or "disposed" on 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.

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments may be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these example embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus a repetitive description thereof will be omitted.

The head display device provided by the embodiment of the application can be applied to a plurality of fields, such as games, films, education, military, medical treatment, enterprises, electronic commerce and the like, and the application field of the head display device is not limited. And, the head display device may be 3D glasses, VR (Virtual Reality) glasses, AR (Augmented Reality) glasses, or the like.

In this embodiment, the head display device is illustrated by taking the head display device as an example, and other embodiments are not described in detail. The head display device can enable the scene seen by the wearer to be virtual pictures and real life integrated.

Referring to fig. 1, the head display device 100 includes a main body structure 10, a headband 20, and a forehead support structure 30. The body structure 10 is connected to the headband 20 and the forehead support structure 30 is connected to the body structure 10. The forehead support structure 30 is configured to rest against the forehead of the user to stably support the head-display device 100 when the headband 20 is worn on the head of the user. Because the weight borne by the headband 20 can be shared by the forehead support structure 30, the headband 20 is prevented from causing transitional compression to the head of the user, and thus the wearing comfort of the user when using the head display device 100 is improved.

As shown in fig. 2, the main structure 10 includes a housing 11 and a display module 12 disposed in the housing 11, where the display module 12 is used for displaying an image or a scene. In this embodiment, the housing 11 serves as a shell of the main body structure 10, and the housing 11 is formed with a housing space to house the display module 12, that is, the display module 12 is disposed in the housing space.

In some embodiments, the forehead support structure 30 may be used as a separate device, and the forehead support structure 30 is configured to connect to the main body structure 10 when needed. The forehead support structure 30 may be detached when it is not needed. Specifically, for the head display device 100 without the forehead support structure 30 in the prior art, the forehead support structure 30 can exert the forehead support effect by assembling the forehead support structure 30 to the main body mechanism 10 of the head display device 100, so that the user does not need to replace the whole head display device 100 to obtain the forehead support by the forehead support structure 30, the use cost is reduced, and the user experience is improved.

It should be noted that the shell 11 may be used as a part of the forehead support structure 30 to accommodate the assembly of the forehead support structure 30.

Specifically, as shown in connection with fig. 2 and 3, the forehead support structure 30 includes a support 31, a movable seat 32, a positioning member 33, and a locking member 34.

The supporting member 31 is movably connected with the housing 11, and the supporting member 31 is inclined towards the display side of the head display device 100 relative to the housing 11 and has an adjustable inclination angle, so as to adapt to the needs of propping against the forehead of the user. It can be appreciated that the display side of the head display device 100 is the side on which the screen is displayed, so that when the user wears the head display device 10, the screen displayed by the head display device 100 can be presented in front of the eyes of the user, and the support 31 inclined toward the display side can be abutted against the forehead of the user, so that the support 31 exerts a good supporting effect, and then the user obtains a good experience.

The movable seat 32 is connected with the supporting member 31 in a linkage manner, so that when the supporting member 31 moves relative to the main body structure 10, the movable seat 32 moves together, and accordingly, when the movement of the movable seat 32 is limited, the movement of the supporting member 31 relative to the main body structure 10 is also limited.

The positioning member 33 is connected to the housing 11, and the positioning member 33 has a locking portion 33a. The locking member 34 is connected with the movable seat 32 to be connected with the supporting member 31 through the movable seat 32. Of course, in other embodiments, the movable seat 32 may be omitted, and the locking member 34 is coupled to the supporting member 31.

The locking member 34 has a locking portion 341, the locking member 34 has a locked state and an unlocked state, and when the locking member 34 is in the locked state, the locking portion 341 cooperates with the locking portion 33a to limit the support member 31 to move toward a side opposite to the display side relative to the housing 11, so that the support member 31 can stably abut against the forehead of the user, so as to provide stable support for the head display device 100.

As can be appreciated, when the locking member 34 is in the unlocked state, the latching portion 341 is separated from the latching portion 33a to release the restriction on the supporting member 31, so that the supporting member 31 can freely move relative to the main body structure 10 to adjust the inclination angle.

It should be noted that, since the head display device 100 is displayed by emitting light toward the eyes of the user when worn, the display side of the head display device 100 is then displayed by emitting light toward the user, that is, the head display device 100 is displayed by emitting light toward the back when worn. As shown in connection with fig. 4 and 5, backward means to face the rear side of the user when the head-mounted display device 100 is worn, and the inclination angle means an inclination angle with respect to the horizontal plane. For convenience of understanding, taking the head display device 100 as an example when worn and used, in a horizontal posture of the main body structure 10, an included angle α between the support member 31 and the horizontal plane is an inclination angle of the support member 31 relative to the main body structure 10. As shown in fig. 4 and 5, the inclination angle of the supporting member 31 relative to the main body structure 10 is adjustable, so that the supporting member 31 can be adjusted to a position fitting with the forehead of the user, and the supporting stability and comfort level are improved.

It should be noted that the forehead support structure 30 may be fixedly connected to the headband 20 to connect with the body structure 10 along with the headband 20.

In the embodiment in which the forehead support structure 30 is a separate component, the forehead support structure 30 may be detachably connected to the headband 20 or the main body structure 10, specifically, the forehead support structure 30 is detachably connected to the headband 20, so that when the headband 20 is used to wear the forehead display device 100 in the prior art, the forehead support structure 30 may be properly assembled to the headband 20 of the forehead display device 100 to improve wearing comfort, and in this way, a user does not have to replace the entire forehead display device 100 to obtain the forehead support of the forehead support structure 30, thereby reducing use cost and improving user experience.

The support 31 is rotatably connected to the housing 11. In some embodiments, the support 31 is coupled to the hole 11a of the housing 11 by a rotation shaft 31 a. In other embodiments, the support 31 may be rotatably connected to the housing 11 by a hinge, and the rotational connection structure between the support 31 and the housing 11 is not limited herein.

The positioning piece 33 is fixed in the shell 11, the shell 11 is provided with a clearance groove 11b, the forehead support structure 30 comprises a connecting rod 35, the connecting rod 35 movably penetrates through the clearance groove 11b, and the connecting rod 35 links the support piece 31 with the locking piece 34. For example, in the embodiment in which the locking member 34 is connected with the movable seat 32, the link 35 may be a way to link the support 31 with the locking member 34 by linking the movable seat 32 with the support 31. Specifically, one end of the connecting rod 35 is hinged to the movable seat 32, and the other end is hinged to the supporting member 31, so that when the supporting member 31 moves relative to the main body structure 10, the supporting member 31 can drive the movable seat 32 to move relative to the positioning member 33 via the connecting rod 35. Specifically, both ends of the link 35 are hinged to the movable seat 32 and the support 31 through shaft pins 35a, respectively. Taking the movable seat 32 as an example, the movable seat 32 is provided with a shaft hole 32a, so that the connecting rod 35 is connected with the movable seat 32 by the cooperation of the shaft pin 35a and the shaft hole 32 a.

In other embodiments, both ends of the link 35 may be hinged to the support 31 and the locking member 34, respectively, and the linkage connection between the support 31 and the locking member 34 can be achieved as well. It follows that the movable seat 32 may be omitted in terms of achieving a ganged connection of the support 31 with the locking element 34. Of course, in embodiments where the locking member 34 is coupled to the movable mount 32, the locking member 34 may be formed as an integral structure with the movable mount 32. The link 35 may be straight. In other embodiments, as shown in fig. 6, the connecting rod 35 has a bending section 351, and the connection position between the supporting member 31 and the housing 11 corresponds to the bending section 351, so that the portion of the connecting rod 35 exposed out of the housing 11 can be prevented from being too abrupt as much as possible, and the overall aesthetic feeling of the head display device 100 is improved. The bending section 351 may be V-shaped or U-shaped, or W-shaped, and is not limited herein.

The length of the link 35 may be sufficient to accommodate the rotation of the support 31 at a certain angle relative to the main structure 10. In some embodiments, when the locking member 34 is in the unlocked state, the supporting member 31 can move in a range of 100 ° to 160 ° backward inclined angle with respect to the main structure 10, that is, the value of the included angle α between the supporting member 31 and the horizontal plane is 100 ° to 160 ° when the main structure 10 is in the horizontal posture. By the engagement of the locking member 34 with the locking portion 33a of the positioning member 33, the supporting member 31 can be locked at any angle within the inclination angle range with respect to the main body structure 10, for example, the supporting member 31 is inclined at 100 °, 110 °, 120 °, 130 °, 140 °, 150 ° or 160 ° rearward with respect to the main body structure 10.

As shown in fig. 7, the housing 11 is connected with a cover 113, and the cover 113 is used to cover the connection position of the link 35 or the supporting member 31 and the housing 11, so as to avoid the link 35 from being exposed and being too abrupt, thereby maintaining the overall aesthetic appearance of the head display device 100 by using the cover 113. When the support 31 rotates relative to the housing 11, the link 35 is able to move within the space enclosed by the casing 113, so as not to interfere with the link 35 to accommodate the movement of the support 31 relative to the main structure 10.

The cover 113 may be connected to the housing 11 by a detachable connection such as a snap connection or a screw connection, or the cover 113 may be integrally formed with the housing 11.

As shown in fig. 6 and 7, the head display device 100 includes a power source 40, the display module 12 is mounted to one end of the head band 20, and the power source 40 is located at the other end of the head band 20. For convenience of explanation, hereinafter, when the head display device 100 is worn on the head of a user, the front-facing end of the headband 20 is referred to as a front end, and accordingly, the rear-facing end of the headband 20 is referred to as a rear end. In this embodiment, the display module 12 is opposite to the eyes of the user when the head-mounted device 100 is worn on the head of the user, so that the user obtains a visual experience through the image or scene displayed by the display module 12. Thus, the display module 12 can be mounted on the front end of the headband 20, and the power source 40 is located on the rear end of the headband 20 and is disposed opposite to the display module 12. The power source 40 may be a battery. The power supply 40 and the display module 12 are respectively arranged at two ends of the head band 20, so that the weight of the head band 20 can be balanced relatively, and the weight of the head display device 100 of the embodiment can be uniformly distributed around the top of the head when the head display device is worn and used, so that the forehead and the nose bridge are prevented from being pressed intensively, the wearing comfort is further improved, and the experience of a user is improved.

The power source 40 may be disposed in the mounting case 40a, and the mounting case 40a may be connected to the headband 20 by a snap connection or a connection such as a screw or a strap. The surface of the mounting case 40a for contact with the user may be provided with a silica gel pad or foam, thereby improving wearing comfort.

With continued reference to fig. 6 and 7, the headband 20 includes a left headband 21 and a right headband 22, both ends of the left headband 21 are respectively connected to the left side of the main body structure 10 and the left side of the mounting case 40a, and both ends of the right headband 22 are respectively connected to the left side of the main body structure 10 and the right side of the mounting case 40 a. In the present application, the left and right sides respectively refer to the left side of the main body structure 10 corresponds to the left side of the head and the right side of the main body structure 10 corresponds to the right side of the head when the head display device 100 is worn on the head of the user.

In some embodiments, the left headband 21 and the right headband 22 are integrally connected, i.e., the headband 20 comprises one headband. The structure of the headband 20 is not limited herein.

An FPC or cable may be provided inside the headband 20 to connect the power source 40 located in the mounting case 40a with the display module 12 located in the main body structure 10 for transmitting electric signals and power.

There are a number of possible embodiments of the locking member 34 that switch between the locked and unlocked states.

For example, in some embodiments, the latch 34 is electrically operable to switch between the two states. Taking the iron core of the electromagnet as an example, the locking piece 34 is arranged on the iron core, when the electromagnet is electrified, the locking piece 34 moves in a telescopic way along with the iron core, so that the locking state and the unlocking state are switched. For another example, the forehead support structure 30 is provided with corresponding structural components to accommodate the need to switch between the two other states of the latch 34.

The forehead support structure 30 is further described below by way of example only.

As shown in connection with fig. 8 and 9, the forehead support structure 30 includes a support base 36 and an elastic member 37. The supporting seat 36 is slidably connected with the positioning piece 33, and the movable seat 32 and the supporting seat 36 are relatively limited in the first direction, so that when the supporting piece 31 moves relative to the main body structure 10, the supporting seat 36 slides relative to the positioning piece 33 under the driving of the movable seat 32.

The movable seat 32 is movable relative to the support seat 36 along a second direction, which intersects the first direction. Preferably, the first direction and the second direction are perpendicular, and it will be understood that, as shown in connection with fig. 1 and 2, the first direction may be a front-rear direction when the head display device 100 is worn on the head of the user, and the second direction may be an up-down direction when the head display device 100 is worn on the head of the user.

When the movable seat 32 moves along the second direction relative to the supporting seat 36, the movable seat 32 drives the locking member 34 to switch between the locking state and the unlocking state, and the elastic member 37 is used for driving the movable seat 32 to move in a resetting manner relative to the supporting seat 36 until the locking member 34 is matched with the locking portion 33 a.

In the above embodiment, the movable seat 32 may be pressed to make the movable seat 32 drive the locking member 34 to separate from the positioning member 33, so as to place the locking member 34 in the unlocked state, and at this time, the supporting member 31 may be operated to move relative to the main body structure 10 to adjust the inclination angle of the supporting member 31. When the position of the supporting member 31 relative to the main body structure 10 needs to be locked again to limit the supporting member 31 to move towards the front side relative to the main body structure 10, the elastic member 37 can drive the movable seat 32 to reset relative to the supporting seat 36 only by releasing the pressing force acting on the movable seat 32.

In the embodiment in which the movable seat 32 is connected to the supporting member 31 in a linkage manner through the connecting rod 35, by pressing one end of the connecting rod 35, which is close to the movable seat 32, the movable seat 32 can drive the locking member 34 to move along the second direction, so that the locking member 34 is separated from the locking portion 33a, and the locking effect on the movable seat 32 is released, at this time, the user can operate the supporting member 31 to move back and forth relative to the main body structure 10, and adjust the inclination angle of the supporting member 31 relative to the main body structure 10.

The positioning piece 33 is provided with a sliding groove 33b, the supporting seat 36 is provided with a sliding protrusion 36a, and the sliding protrusion 36a is in sliding fit with the sliding groove 33b, so that sliding connection between the supporting seat 36 and the positioning piece 33 is realized. The positions of the sliding groove 33b and the sliding protrusion 36a may be interchanged, that is, the sliding groove 33b may be disposed on the supporting seat 36, and correspondingly, the sliding protrusion 36a is disposed on the positioning member 33.

It should be noted that, the sliding groove 33b and the sliding protrusion 36a extend along the first direction, and the sliding engagement of the supporting seat 36 and the positioning member 33 enables the supporting seat 36 to slide along the first direction relative to the positioning member 33, but not move along the second direction relative to the positioning member 33, so that the supporting seat 36 is used to provide a stable supporting force to the movable seat 32 via the elastic member 37, so that the locking member 34 is in the locked state. When the movable seat 32 receives a pressing force, the movable seat 32 presses the elastic member 37 and drives the locking member 34 to separate from the locking portion 33a.

With continued reference to fig. 8 and 9, the support base 36 has a first arm 361 and a second arm 362 connected to each other, and the two sides of the movable base 32 are respectively provided with a positioning member 33, where the first arm 361 is slidably engaged with the positioning member 33 on one side, and the second arm 362 is slidably engaged with the positioning member 33 on the other side.

The support base 36 has a connection portion 363, and the connection portion 363 is connected between the first arm 361 and the second arm 362, so that the support base 36 has a U-shape or an arch shape. One end of the elastic member 37 abuts against the connection portion 363, and the other end abuts against the movable seat 32, so that the movable seat 32 has a tendency to move in a direction away from the connection portion 363, and then the movable seat 32 can be reset, and the locking member 34 is placed in the locking state again.

Further, the elastic member 37 includes a spring, the connection portion 363 is provided with a positioning boss 36b, and an end portion of the spring is sleeved on the positioning boss 36b, thereby improving installation stability of the spring by using the positioning boss 36 b.

In other embodiments, the elastic member 37 may also have other structures with elastic deformation capability, for example, the elastic member 37 is an elastic sheet, an elastic rod or an elastic pad, and the type of the elastic member 37 is not limited herein, so long as the type of the elastic member 37 can adapt to the requirement of the restoring movement of the movable seat 32 relative to the supporting seat 36, so that the locking member 34 is in the locking state. The engagement between the locking member 34 and the locking portion 33a is stable and reliable due to the elastic force of the elastic member 37.

It should be noted that, the elastic member 37 provides stable tension between the movable seat 32 and the supporting seat 36, so that the movable seat 32 and the supporting seat 36 have relative stability, and are not easy to loose.

As shown in fig. 10 to 14, the movable base 32 is provided with a slot 32b, the supporting base 36 is provided with an insert 36c, and the insert 36c is movably inserted into the slot 32b along the second direction. By the cooperation of the insert block 36c and the slot 32b, the movable seat 32 and the supporting seat 36 are limited in the first direction, and the movable seat 32 can move relative to the supporting seat 36 in the second direction. It will be appreciated that the movable seat 32 is capable of elastically floating in the second direction with respect to the support seat 36 under the action of the elastic member 37.

The positions of the slot 32b and the insert 36c may be interchanged, that is, the slot 32b may be disposed on the support base 36, and the insert 36c may be disposed on the movable base 32, which may also be adapted to the movement requirement of the movable base 32 relative to the support base 36 by movably inserting the insert 36c into the slot 32b in the second direction. In this embodiment, when the locking member 34 needs to be placed in the unlocked state, only one end of the connecting rod 35 near the movable seat 32 needs to be pressed, so that the movable seat 32 moves relative to the supporting seat 36 and presses the elastic member 37, and finally the locking member 34 moves along with the movable seat 32 to be separated from the locking portion 33a of the positioning member 33, at this time, the movement of the movable seat 32 relative to the positioning member 33 is no longer constrained by the locking member 34, and then the supporting member 31 can swing relative to the housing 11, so as to adjust the inclination angle of the supporting member 31.

Referring again to fig. 3, the locking portion 33a includes a plurality of latches extending along the length direction of the positioning member 33 and used for limiting the locking member 34 to different positions relative to the positioning member 33.

The locking member 34 includes an elastic portion 342 connected to the holding portion 341, and the elastic force of the elastic portion 342 makes the holding portion 341 cooperate with the locking portion 33a, so that the locking member 34 is in a locked state. When the elastic portion 342 is compressed, the retaining portion 341 is separated from the retaining portion 33a, so that the locking member 34 is switched from the locked state to the unlocked state, and at this time, the locking member 34 can move relative to the positioning member 33 to adapt to the adjustment of the inclination angle of the supporting member 31.

Further, at least part of the latch teeth of the latch portion 33a are ratchet teeth, and when the latch portion 341 is engaged with the ratchet teeth, the ratchet teeth unidirectionally restrict the latch portion 341 from moving toward a side facing away from the display side of the head display device 100 (i.e., a front side of the head display device 100) with respect to the positioning member 33.

For convenience of explanation, hereinafter, a side on which the display side of the head display device 100 is located is referred to as a rear side, and a side facing away from the display side of the head display device 100 is referred to as a front side.

In some embodiments, all of the teeth of the latch portion 33a are ratchet teeth, such that the latch portion 341 has a sufficiently large unidirectional movement stroke with respect to the positioning member 33. It should be noted that unidirectional restriction means that restriction is performed in only one direction. In particular, in the present embodiment, since the clamping portion 341 is elastically matched with the ratchet under the driving of the elastic portion 342, when the clamping portion 341 is matched with the ratchet, the user can move the supporting member 31 to the rear side of the main body structure 10, but under the limitation of the ratchet to the clamping portion 341, the user cannot move the supporting member 31 to the front side of the main body structure 10, so as to be beneficial to the stable contact between the supporting member 31 and the forehead of the user, and provide stable support for the head display device 100.

When wearing the head display device 100, a user can wear the head band 20 to the head, and then bend the supporting piece 31 towards the rear side so that the supporting piece 31 is propped against the forehead, and the adjustment is convenient. When the support 31 needs to be swung toward the front side, the catching portion 341 only needs to be disengaged from the ratchet. For the locking member 34 to switch from the locked state to the unlocked state, reference may be made to the foregoing embodiment of the forehead support structure 30 including the support base 36 and the elastic member 37, which is not described herein.

It should be noted here that, in addition to the solution described above for the embodiment in which the forehead support structure 30 includes the support base 36 and the elastic member 37, in the embodiment in which the locking member 34 includes the elastic portion 342, the locking member 34 may be switched between the locked state and the unlocked state by pressing the locking member 34.

For example, as shown in connection with fig. 15, in some embodiments, the forehead support structure 30 includes a pressing seat 39, where the pressing seat 39 is movably disposed on the positioning member 33, such as the pressing seat 39 is slidably connected to the positioning member 33, or the pressing seat 39 is movably sleeved on the positioning member 33. The structure of the sliding connection between the pressing seat 39 and the positioning member 33 can refer to the structure of the sliding connection between the supporting seat 36 and the positioning member 33, which is not described herein.

In this embodiment, the pressing seat 39 is used to press the elastic portion 342 to move the clamping portion 341 away from the latch, and the pressing seat 39 can move away from the locking member 34 along the positioning member 33 to release the elastic portion 342. In this embodiment, the elastic portion 342 is pressed by the pressing seat 39, so that the clamping portion 341 leaves the latch, that is, the locking member 34 is in an unlocked state, at this time, the movable seat 32 can move freely, and then the supporting member 31 connected with the movable seat 32 in a linkage manner can adjust the inclination angle relative to the main body structure 10, so as to adapt to the forehead of the user. After the inclination angle of the supporting member 31 relative to the main body structure 10 is adjusted, the position of the supporting member 31 relative to the main body structure 10 can be locked only by switching the locking member 34 from the unlocking state to the locking state, so that the supporting member 31 and the forehead are used for stably supporting the head display device 100, and wearing comfort is improved. In the process of switching the locking member 34 from the unlocked state to the locked state, the elastic portion 342 can drive the clamping portion 341 to cooperate with the latch teeth only by moving the pressing seat 39 away from the locking member 34 relative to the positioning member 33 to release the pressing of the elastic portion 342 by the pressing seat 39, so that the locking member 34 is in the locked state.

It should be noted that the pressing seat 39 may be driven by the driving assembly to move relative to the positioning member 33. The driving assembly for moving the pressing seat 39 relative to the positioning member 33 may be a motor-screw structure, and specifically, the driving assembly includes a motor and a screw, and the screw is linked with an output shaft of the motor and is used for driving the pressing seat 39 to move relative to the positioning member 33. Thus, when the pressing seat 39 is required to move relative to the positioning piece 33 to switch the locking piece 34 between the locking state and the unlocking state, the motor is only required to be started to enable the screw transmission pressing seat 39 to move relative to the positioning piece 33. In other embodiments, the driving assembly may also be a motor-gear structure, specifically, the driving assembly includes a motor and a gear, an output shaft of the motor is connected with the gear, the extrusion seat 39 is provided with a rack meshed with the gear, and the rack may be integrally formed on the extrusion seat 39, or may be connected with the extrusion seat 39 by welding, screw connection, glue bonding or the like. When the motor drives the gear to rotate, the gear moves the pressing seat 39 relative to the positioning member 33 by engaging the transmission rack. The structure of the driving assembly is not limited herein, as long as the driving assembly can drive the pressing seat 39 to move relative to the positioning member 33, so that the pressing seat 39 selectively presses or releases the elastic portion 342 of the locking member 34, and the locking member 34 can be switched between the locked state and the unlocked state.

For convenience of description, a position where the pressing seat 39 presses the elastic portion 342 is referred to as a first position, and a position where the pressing seat 39 releases the pressing of the elastic portion 342 is referred to as a second position, in the above embodiment, the driving assembly is configured to drive the pressing seat 39 to move between the first position and the second position relative to the positioning member 33, so that the pressing seat 39 selectively presses or releases the elastic portion 342 of the locking member 34.

In other embodiments, the squeeze seat 39 may be moved relative to the retainer 33 by manual adjustment. For example, the pressing seat 39 is connected with an adjusting rod or an adjusting knob, which is movably disposed through the housing 11 of the main body structure 10, and the pressing seat 39 is moved relative to the positioning member 33 by the adjusting rod or the adjusting knob to press the elastic portion 342 or separate from the elastic portion 342. Specifically, taking an example that the adjusting rod realizes that the extrusion seat 39 moves relative to the positioning piece 33, the adjusting rod is movably arranged through the shell 11, one end of the adjusting rod is connected with the extrusion seat 39, and the other end of the adjusting rod is exposed out of the shell 11, so that the extrusion seat 39 is conveniently moved and operated by the adjusting rod.

In the embodiment in which the locking member 34 includes the elastic portion 342, the pressing seat 39 may have another shape. For example, as shown in fig. 16, the pressing seat 39 is movably disposed on the link 35 and is used for pressing or releasing the elastic portion 342, and when the pressing seat 39 presses the elastic portion 342, the retaining portion 341 is separated from the retaining portion 33a. In this way, by the movement of the pressing seat 39 along the link 35 to a proper position, the pressing seat 39 presses the elastic portion 342, and then the locking piece 34 is switched from the locked state to the unlocked state. Accordingly, when the locking member 34 needs to be put in the locked state again, the pressing seat 39 is only required to be moved along the connecting rod 35, so that the pressing seat 39 releases the pressing of the elastic portion 342, and the clamping portion 341 can be matched with the locking portion 33a by using the elastic force of the elastic portion 342.

As shown in fig. 16, the pressing seat 39 may be movably sleeved on the connecting rod 35. In other embodiments, the pressing seat 39 may also be slidably engaged with the link 35. The installation position and structure of the pressing seat 39 are not limited herein, and the elastic portion 342 of the lock member 34 may be pressed or released so as to be movable.

The structure of the pressing seat 39 has various possibilities, as long as the elastic portion 342 of the locking member 34 can be pressed and the pressing of the elastic portion 342 can be released as the pressing seat 39 moves away from the locking member 34. For example, the pressing seat 39 is formed with a nip 39a for sandwiching the lock piece 34 to press the elastic portion 342. When the pressing seat 39 moves to make the clamping opening 39a opposite to the elastic portion 342, the clamping opening 39a presses the elastic portion 342 to make the clamping portion 341 separate from the latch, and then the locking member 34 is in the unlocked state. When the pressing seat 39 moves to make the clip 39a separate from the elastic portion 342, the elastic portion 342 returns to deform due to the absence of the clip 39a, so that the elastic portion 342 drives the clamping portion 341 to cooperate with the latch, and the locking member 34 is in the locking state.

As shown in connection with fig. 17, in some embodiments, the rear side of the support 31 is provided with a cushion 38 so that the support 31 is abutted against the forehead of the user through the cushion 38 when the head display device 100 is worn, the cushion 38 may reduce discomfort to improve comfort.

As shown in fig. 18, the housing 11 includes a face case 111 and a face mask 112 connected to the face case 111, and the display module 12 is mounted in a space surrounded by the face mask 112 and the face case 111.

The rear side of the mask 112 is provided with a flexible pad 112a of foam, silica gel, etc., so that when the head display device 100 is worn, the side of the mask 112 facing the user has a better skin-contacting feel, and wearing comfort is improved. The flexible pad 112a may be attached to the mask 112 using velcro, magnetic, glue, or snaps. It should be noted that, when the foam is adopted to make the flexible pad 112a, the foam may be filled with a flexible material capable of being compressed and rebounded, so as to better adapt to the curved surface of the face of the user and improve the wearing comfort.

The number of the display modules 12 may be one or more, and the number of the display modules 12 may be designed according to different needs, and the number of the display modules 12 is not limited herein.

The structure of the head display device 100 will be further described with reference to the case where the main body structure 10 is provided with the display modules 12 corresponding to the left and right eyes.

As shown in fig. 19, for convenience of explanation, when the head display apparatus 100 is worn and used, the display module 12 corresponding to the left eye is referred to as a first display module 12a, and the display module 12 corresponding to the right eye is referred to as a second display module 12b.

A pupil distance adjusting component 14 is disposed between the first display module 12a and the second display module 12b, and the pupil distance adjusting component 14 can be used for adjusting the distance between the first display module 12a and the second display module 12b so as to adapt to the pupil distance of a user, so that the use effect is improved.

The pupil distance adjustment assembly 14 includes a mounting plate 141, an adjustment gear 142, and a driver 143. The mounting plate 141 is connected to the housing 11, the first display module 12a and the second display module 12b are slidably connected to the mounting plate 141, and racks 12c meshed with the adjusting gears 142 are respectively provided, and the driving member 143 is used for driving the adjusting gears 142 to rotate, so that the adjusting gears 142 mesh with the driving racks 12c to move, and the first display module 12a and the second display module 12b are close to each other or far away from each other, so as to adapt to the interpupillary distance of a user. The driving member 143 may be a motor or a micro motor, and is not limited herein.

The first display module 12a and the second display module 12b each include a display screen (not shown), a lens group 121, and a bracket 122, the display screen and the lens group 121 are each connected to the bracket 122, and the bracket 122 is slidably connected to the mounting plate 141. The rack 12c may be integrally formed with the bracket 122, or may be connected to the bracket 122 by welding, snap connection, screw connection, or the like.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be regarded as the scope of the present application.

The above examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.

Claims

1. A forehead support structure for providing support force when wearing a head-display device, the forehead support structure comprising:

The shell is provided with an empty-avoiding groove;

The locking piece is in linkage connection with the supporting piece and is provided with a clamping part, the locking piece is provided with a locking state and an unlocking state, when the locking piece is in the locking state, the clamping part is matched with the clamping part and only limits the supporting piece to move towards one side opposite to the display side relative to the shell, and when the locking piece is in the unlocking state, the clamping part is separated from the clamping part so as to release the limitation of the supporting piece; the locking part comprises a plurality of clamping teeth, the clamping teeth extend along the length direction of the positioning piece and are used for limiting the clamping part to different positions relative to the positioning piece, the locking piece comprises an elastic part, the elastic part is connected with the clamping part, the elastic force of the elastic part enables the clamping part to be matched with the locking part, when the elastic part is compressed, the clamping part is separated from the clamping part, at least part of the clamping teeth of the clamping part are ratchets, and when the clamping part is matched with the ratchets, the ratchets unidirectionally limit the clamping part to move relative to the positioning piece towards the side opposite to the display side;

The connecting rod is movably arranged in the clearance groove in a penetrating mode, two ends of the connecting rod are hinged to the supporting piece and the locking piece respectively, the supporting piece is connected with the locking piece in a linkage mode, and when the supporting piece moves towards the display side, the connecting rod drives the locking piece to move so that the clamping portion is matched with different clamping teeth.

2. The forehead support structure according to claim 1, comprising a support seat, a movable seat and an elastic member, wherein the support seat is slidably connected with the positioning member, the movable seat is connected with the locking member, the movable seat and the support seat are relatively limited in a first direction, when the support member moves relative to the housing, the support seat slides relative to the positioning member under the drive of the movable seat, the movable seat can move relative to the support seat in a second direction intersecting the first direction, and when the movable seat moves relative to the support seat in the second direction, the movable seat drives the locking member to switch between the locked state and the unlocked state, and the elastic member is used for driving the movable seat to move relative to the support seat in a reset manner until the locking portion is matched with the locking portion.

3. The forehead support structure of claim 2, wherein the first direction is perpendicular to the second direction.

4. The forehead support structure according to claim 2, wherein the support base has a first arm and a second arm that are connected, the positioning members are disposed on both sides of the movable base, the first arm is slidably engaged with one of the positioning members, and the second arm is slidably engaged with the other positioning member.

5. The forehead support structure according to claim 2, wherein one of the support base and the positioning member is provided with a sliding slot, and the other is provided with a sliding protrusion that slidably engages the sliding slot.

6. The forehead support structure according to claim 2 or 5, wherein one of the movable seat and the support seat is provided with a slot, and the other is provided with an insert, and the insert is movably inserted into the slot along the second direction.

7. The forehead support structure according to claim 1, wherein the forehead support structure includes a pressing seat movably disposed in the positioning member and configured to press the elastic portion, the pressing seat being movable away from the locking member along the positioning member to release the elastic portion.

8. The forehead support structure according to claim 7, wherein the forehead support structure includes a drive assembly that is configured to drive the pressing seat to move relative to the positioning member such that the pressing seat presses or releases the elastic portion.

9. The forehead support structure according to claim 8, wherein the drive assembly includes a motor and a screw coupled to an output shaft of the motor, the screw configured to drive the compression seat to move relative to the positioning member.

10. The forehead support structure according to claim 8, wherein the drive assembly includes a motor and a gear, an output shaft of the motor is connected to the gear, the compression mount is provided with a rack that meshes with the gear, and when the motor drives the gear to rotate, the gear drives the rack through meshing so that the compression mount moves relative to the positioning member.

11. The forehead support structure according to claim 7, wherein the squeeze seat is connected with an adjustment lever or knob that is movably threaded through the housing.

12. The forehead support structure according to claim 7, wherein the pressing seat is formed with a nip for clamping the lock to press the elastic portion.

13. The forehead support structure according to claim 2, wherein the locking member is an integral structural member with both the movable seat.

14. The forehead support structure according to claim 13, wherein the link is in a straight bar shape or the link has a bending section, and the connection position of the support member and the housing corresponds to the bending section.

15. The forehead support structure according to claim 13 or 14, wherein the forehead support structure includes a cover coupled to a housing, the cover is configured to cover the connection location of the link or the support member to the housing, and the link is configured to move within a space enclosed by the cover when the support member rotates relative to the housing.

16. The forehead support structure according to claim 13, wherein the locking member includes an elastic portion, the elastic portion is connected to the locking portion, the elastic force of the elastic portion causes the locking portion to cooperate with the locking portion, the forehead support structure includes a pressing seat movably disposed on the connecting rod and configured to press or release the elastic portion, and the locking portion is separated from the locking portion when the pressing seat presses the elastic portion.

17. A head display device comprising a main body structure, a headband, and a forehead support structure according to any one of claims 1-16, wherein the main body structure is connected to the headband, the forehead support structure is connected to the main body structure, and the support is configured to abut against the forehead of a user when the headband is worn on the head of the user.

18. The head display device of claim 17, wherein the housing encloses a receiving space, and the main structure includes a display module disposed in the receiving space, the display module being configured to display an image or scene.

19. The head display device of claim 17, comprising a power source, the body structure being mounted to one end of the headband, the power source being located at the other end of the headband.