CN114217439B

CN114217439B - Head-mounted display device

Info

Publication number: CN114217439B
Application number: CN202111446724.5A
Authority: CN
Inventors: 高爱丽; 田凤瑶; 王青
Original assignee: Goertek Optical Technology Co Ltd
Current assignee: Goertek Inc
Priority date: 2021-11-30
Filing date: 2021-11-30
Publication date: 2022-11-22
Anticipated expiration: 2041-11-30
Also published as: CN114217439A

Abstract

The invention discloses a head-mounted display device which comprises a host, a wearing frame, a distance adjusting assembly and an angle adjusting assembly. Wherein the host comprises a host housing having an interior cavity; the two sides of the wearing frame are provided with connecting parts extending into the inner cavity; the distance adjusting assembly is connected with the main case and the connecting part and used for adjusting the distance of the wearing frame moving along the front-back direction relative to the main case; the angle adjusting component is connected with the connecting part and the distance adjusting component so as to be used for adjusting the angle of the wearing frame relative to the main case rotating along the up-down direction. The head-mounted display equipment disclosed by the invention has two functions of distance adjustment and angle adjustment, so that the functions of the head-mounted display are richer, and the use requirements of vast users are met.

Description

Head-mounted display device

Technical Field

The invention relates to the technical field of virtual display equipment, in particular to head-mounted display equipment.

Background

A head-mounted display is a device for displaying images and colors, and generally takes the form of an eyecup or a helmet, in which a main housing having a display screen is brought close to the eyes of a user, and a picture is projected to the eyes of the user at a short distance by adjusting a focal length through an optical path. Such a head-mounted display generally includes a main housing and a wearing frame connected to the main housing for a user to wear on the head. However, most of the wearing frames of the head-mounted display in the current market are not compatible with distance adjustment and angle adjustment functions, so that the function of the head-mounted display is single, and the use of the majority of users is difficult to be considered.

Disclosure of Invention

The invention mainly aims to provide a head-mounted display device, aiming at realizing that the head-mounted display device has two functions of distance adjustment and angle adjustment, so that the head-mounted display has more abundant functions and meets the use requirements of the majority of users.

In order to achieve the above object, the present invention provides a head-mounted display device, which includes a host, a wearing frame, a distance adjusting assembly, and an angle adjusting assembly. Wherein the host comprises a host housing having an interior cavity; the two sides of the wearing frame are provided with connecting parts extending into the inner cavity; the distance adjusting assembly is connected with the main case and the connecting part and used for adjusting the distance of the wearing frame moving along the front-back direction relative to the main case; the angle adjusting component is connected with the connecting part and the distance adjusting component so as to be used for adjusting the angle of the wearing frame relative to the main case rotating along the up-down direction.

Optionally, the distance adjusting assembly comprises a center wheel, an adjusting shaft, a transmission gear and a locking structure. The central wheel comprises a main wheel body arranged on the connecting part and a rack arranged on the main wheel body, and the rack extends along the front-back direction; two ends of the adjusting shaft are respectively provided with a rotating end which is rotatably connected with the main case and a transmission end which extends towards the central wheel; the transmission gear is arranged at the transmission end and is meshed with the rack; the locking structure is arranged on the main machine shell and connected with the adjusting shaft for locking and unlocking the adjusting shaft.

Optionally, an installation part opposite to the connection part is convexly arranged on the inner surface of the main case, and the installation part is provided with an installation cavity for installing the locking structure; the rotating end of the adjusting shaft penetrates out of the mounting cavity to the outer side of the main case to form an adjusting button.

Optionally, the mounting cavity is provided with a mounting opening which is open towards the connecting portion; the locking structure comprises a positioning locking wheel and a locking resetting piece; the positioning lock wheel ring is sleeved on the adjusting shaft and can move along the axial direction of the adjusting shaft with the adjusting shaft, one of the outer periphery of the positioning lock wheel and the periphery of the mounting opening is provided with a locking groove which is communicated along the axial direction of the adjusting shaft, and the other one is provided with a locking bulge matched with the locking groove; the locking reset piece is installed in the installation cavity, one end of the locking reset piece abuts against the positioning locking wheel, and the other end of the locking reset piece abuts against the inner wall surface, facing the installation opening, of the installation cavity.

Optionally, the positioning lock wheel is provided with a channel hole for the rotating end of the adjusting shaft to pass through, and the inner periphery of the channel hole is provided with an assembling groove which penetrates through the adjusting shaft in the axial direction; the periphery of the rotating end is convexly provided with a stop projection, and the stop projection can penetrate through the assembling groove and abut against the side face, back to the locking reset piece, of the positioning lock wheel through rotation.

Optionally, the transmission gear is provided with a transmission hole connected with the rotating end of the adjusting shaft; one of the inner peripheral edge of the transmission hole and the outer peripheral surface of the rotating end is provided with a limiting convex rib extending along the axial direction of the adjusting shaft, and the other one is provided with a limiting slot inserted and matched with the limiting convex rib.

Optionally, the center wheel further includes a mounting shaft, the mounting shaft is protruded from the center of the main wheel body toward the connecting portion of the wearing frame, and is rotationally matched with the connecting portion; the angle adjusting assembly is mounted on the mounting shaft and connected with the connecting part.

Optionally, the connecting part is provided with an assembling disc, and the assembling disc is provided with adjusting teeth extending along the circumferential direction of the assembling disc; the angle adjusting assembly comprises an adjusting disc and an adjusting reset piece; the adjusting disc is arranged on the main wheel body and movably penetrates through the mounting shaft along the axial direction of the mounting shaft, and the adjusting disc is provided with matching teeth meshed with the adjusting teeth; the adjusting and resetting piece is arranged between the adjusting disc and the main wheel body, one end of the adjusting and resetting piece abuts against the adjusting disc, and the other end of the adjusting and resetting piece abuts against the main wheel body.

Optionally, the assembling disc is provided with a stop groove at two ends of the adjusting tooth, and the stop groove is provided with a first blocking wall and a second blocking wall which are opposite to each other along the extending direction of the adjusting tooth; the adjusting disc is provided with a stop rib correspondingly extending into the stop groove, and the stop rib can rotate along with the adjusting disc to move between the first retaining wall and the second retaining wall.

Optionally, the adjusting disc is provided with a guide post extending towards the main wheel body, and the main wheel body is provided with a guide hole for inserting the guide post; the adjusting reset piece is sleeved on the guide post in a sleeved mode, and the adjusting reset piece extends into the guide hole.

According to the technical scheme, the connecting parts extending into the inner cavity of the main case are arranged at the two ends of the wearing frame of the head-mounted display device, the distance adjusting assembly for connecting the main case and the connecting parts and the angle adjusting assembly for connecting the connecting parts and the distance adjusting assembly are arranged, so that the distance of the wearing frame moving along the front-back direction relative to the main case can be adjusted through the distance adjusting assembly, the angle of the wearing frame rotating along the up-down direction relative to the main case can be adjusted through the angle adjusting assembly, the head-mounted display device has two functions of distance adjustment and angle adjustment, the functions of the head-mounted display device are rich, and the use requirements of vast users are met.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a head-mounted display device according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of another perspective view of the head-mounted display device shown in FIG. 2;

FIG. 3 is a schematic diagram of a partial structure of the head mounted display device in FIG. 2;

FIG. 4 is P in FIG. 3 ₁ An enlarged view of (a);

FIG. 5 is a schematic view of the head mounted display device of FIG. 3 from another perspective;

FIG. 6 is P in FIG. 5 ₂ An enlarged view of (a);

FIG. 7 is a rear view of the head mounted display device of FIG. 3;

FIG. 8 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 7;

FIG. 9 is a drawing showing P in FIG. 8 ₃ The locking structure is in a state of locking the adjusting shaft;

FIG. 10 is a schematic view of the locking structure of FIG. 9 after unlocking the adjustment shaft;

FIG. 11 is an exploded view of the head mounted display device of FIG. 3;

FIG. 12 is a schematic diagram of the main chassis in FIG. 11;

FIG. 13 is P in FIG. 12 ₄ Knot of (2)A schematic view;

FIG. 14 is a schematic view of the structure of the wearing frame of FIG. 11;

FIG. 15 is P in FIG. 14 ₅ An enlarged view of (a);

FIG. 16 is an exploded view of the distance adjustment assembly and the angle adjustment assembly of FIG. 11;

FIG. 17 is a schematic view of the construction of the center wheel of FIG. 16;

FIG. 18 is a schematic view of the center wheel of FIG. 17 from another perspective;

FIG. 19 is a schematic view of the adjustment shaft of FIG. 16 prior to assembly with the drive gear and closure;

FIG. 20 is a schematic view of the adjustment shaft of FIG. 19 assembled with the drive gear and closure;

FIG. 21 is a schematic view of the adjustment disk of FIG. 16;

FIG. 22 is a schematic view of the adjustment disk of FIG. 21 from another perspective;

fig. 23 is a schematic structural view of the positioning pin and the shift position spring in fig. 16.

The reference numbers illustrate:

the objects, features and advantages of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.

It should be noted that, if directional indications (such as upper, lower, left, right, front, rear, 8230; \8230;) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components in a specific posture (as shown in the figure), the motion situation, etc., and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1 to 3, the present invention provides an embodiment of a head-mounted display device, which includes a host, a mounting frame 200, a distance adjusting assembly 300, and an angle adjusting assembly 400; wherein the host includes a host housing 100 having an inner cavity; the two sides of the wearing frame 200 are provided with connecting parts 220 extending into the inner cavity; the distance adjusting assembly 300 is connected to the main chassis 100 and the connecting part 220 for adjusting the distance of the wearing frame 200 moving in the front and rear direction with respect to the main chassis 100; the angle adjusting assembly 400 connects the connection part 220 and the distance adjusting assembly 300 for adjusting an angle of the wearing frame 200 rotated in an up-and-down direction with respect to the main chassis 100.

Specifically, the main chassis 100 of the main body has an inner cavity opened toward the rear for mounting a display device, a control device, and the like. The wearing frame 200 includes a wearing part 210 for wearing on the head of the user, and connection parts 220 provided at both sides of the wearing part 210 and connected to the wearing part 210, the connection parts 220 protruding into the inner cavity of the main chassis 100 through an opening at the rear end of the inner cavity. The shape of the wearing portion 210 can be designed to be a ring shape or a helmet shape or other shape structure, which is not limited herein, and only needs to be worn and fixed on the head by the user.

Each connecting portion 220 is correspondingly provided with a group of distance adjusting assemblies 300 and angle adjusting assemblies 400, that is, the two groups of distance adjusting assemblies 300 and angle adjusting assemblies 400 are respectively arranged at the left and right sides of the wearing frame 200, so that the transverse space of the whole machine equipment can be utilized to the maximum extent, and the occupation of the longitudinal space is reduced. In addition, the connection part 220, the corresponding distance adjustment assembly 300 and the corresponding angle adjustment assembly 400 are all hidden in the main chassis 100 and are not exposed outside the main chassis 100, so that the appearance integrity of the whole equipment is not easily damaged, and the outer surface of the whole equipment is tidier.

Due to the fact that the head sizes and the visual distances of eyes of different users are different, the distance of the wearing frame 200 moving along the front-back direction relative to the main case 100 needs to be adjusted, or the angle of the wearing frame 200 rotating along the up-down direction relative to the main case 100 needs to be adjusted, so that the user can clearly watch the picture projected by the host image user after wearing the head-mounted display device. When the user uses the head-mounted display device, the adjustable wearing frame 200 moves forward or backward relative to the main housing 100 by adjusting the distance adjusting assembly 300, so that the distance between the wearing frame 200 and the display screen of the main housing can be shortened or lengthened, and the distance between the eyes of the user and the display screen can be adjusted. It should be noted that, the front-back direction refers to a direction in which the user eyes face the display screen, and a direction in which the user eyes face the display screen is a front direction, and a direction in which the user eyes face the display screen is a rear direction when the user wears the head-mounted display device normally. When the user uses the head-mounted display device, the angle of the wearing frame 200 rotating upwards or downwards relative to the main chassis 100 can be adjusted by the angle adjusting assembly 400, so that the angle of the display screen of the main chassis relative to the horizontal plane can be increased or decreased to adapt to different application scenes.

According to the technical scheme, the connecting parts 220 extending into the inner cavity of the main case 100 are arranged at the two ends of the wearing frame 200 of the head-mounted display device, the distance adjusting component 300 connecting the main case 100 and the connecting parts 220 and the angle adjusting component 400 connecting the connecting parts 220 and the distance adjusting component 300 are configured, so that the distance of the wearing frame 200 moving along the front-back direction relative to the main case 100 can be adjusted through the distance adjusting component 300, the angle of the wearing frame 200 rotating along the up-down direction relative to the main case 100 can be adjusted through the angle adjusting component 400, the head-mounted display device has two functions of distance adjustment and angle adjustment, the functions of the head-mounted display device are richer, and the use requirements of a large number of users are met.

In addition, the distance adjusting assembly 300 and the angle adjusting assembly 400 on the two connecting parts 220 are respectively arranged at the left side and the right side of the wearing frame 200, so that the transverse space of the whole machine equipment can be utilized to the maximum extent, the occupation of the longitudinal space is reduced, and the internal structure stacking of the host machine is facilitated. In addition, the connecting portion 220, the corresponding distance adjusting assembly 300 and the corresponding angle adjusting assembly 400 are all hidden in the main chassis 100 and are not exposed outside the main chassis 100, so that the appearance integrity of the whole equipment is not easily damaged, and the outer surface of the whole equipment is tidier.

Referring to fig. 3, 5, 11 and 16, in one embodiment, the distance adjusting assembly 300 includes a center wheel 310, an adjusting shaft 320, a transmission gear 330 and a locking structure 340. The central wheel 310 comprises a main wheel body 311 arranged on the connecting part 220, and a rack 313 arranged on the main wheel body 311, wherein the rack 313 extends along the front-back direction; both ends of the adjusting shaft 320 form a rotation end 321 rotatably connected to the main chassis 100 and a transmission end 322 extending toward the center wheel 310, respectively; the driving gear 330 is arranged at the driving end 322 and is meshed with the rack 313; the locking structure 340 is mounted on the main chassis 100 and connected to the adjusting shaft 320 to lock and unlock the adjusting shaft 320.

Specifically, the main wheel body 311 of the center wheel 310 is provided with a receiving groove 316 (as shown in fig. 17) at a side thereof facing away from the connecting portion 220, the rotating end 322 of the adjusting shaft 320 at least partially extends into and is received in the receiving groove 316 (as shown in fig. 8 and 9), and the diameter of the rotating end 322 is smaller than the inner diameter of the receiving groove 316. The center wheel 310 further includes a rack bracket 312 (shown in fig. 18) provided on the main wheel body 311, the rack bracket 312 having two connection beams connected to the main wheel body 311; the rack 313 is disposed on the rack bracket 312 and located at the front side of the receiving groove 316, and both ends of the rack 313 are connected to the two connecting beams of the rack bracket 312. A driving gear 330 installed on the adjusting shaft 320 is engaged with the rack gear 313.

Referring to fig. 10, when the distance adjusting assembly 300 is used to adjust the distance, the locking structure 340 is firstly unlocked from the adjusting shaft 320, so that the adjusting shaft 320 recovers the rotation function, and then the adjusting shaft 320 is rotated, and the adjusting shaft 320 drives the transmission gear 330 to rotate; at this time, the central wheel 310 and the wearing frame 200 are kept relatively stationary, so that the transmission gear 330 drives the rack 313 of the central wheel 310 to move forward and backward, and further the central wheel 310 and the wearing frame 200 move forward and backward integrally with respect to the main chassis 100, thereby realizing distance adjustment. After the distance adjustment is finished, the locking structure 340 is used to lock the adjusting shaft 320 so as to limit the rotation of the adjusting shaft 320, and thus the wearing frame 200 is fixed at the position after the distance adjustment, so that the user can normally wear the head-mounted display device.

Referring to fig. 6 to 9, further, the inner surface of the main housing 100 is convexly provided with a mounting portion 110 opposite to the connecting portion 220, the mounting portion 110 is provided with a mounting cavity 111 for mounting the locking structure 340; the rotation end 321 of the adjustment shaft 320 is extended out of the main chassis 100 through the mounting cavity 111 to form an adjustment button 323.

Specifically, the adjusting button 323 of the adjusting shaft 320 is exposed outside the main housing 100, and after the locking structure 340 unlocks the adjusting shaft 320, the adjusting shaft 320 can be driven to rotate by rotating the adjusting button 323, thereby adjusting the distance. It is understood that the distance adjusting assemblies 300 on the two connecting portions 220 may be provided with the adjusting button 323 on the adjusting shaft 320 of only one of the distance adjusting assemblies 300, or the adjusting shafts 320 of both distance adjusting assemblies 300 may be provided with the adjusting button 323. In the present embodiment, only one of the adjusting shafts 320 of the distance adjusting assembly 300 is provided with the adjusting button 323, so that the user can adjust the distance only by one adjusting button 323 without adjusting two adjusting buttons 323 at the same time; and the number of the adjusting buttons 323 is reduced, so that the influence of the adjusting buttons 323 on the appearance integrity of the head-mounted display device can be correspondingly reduced.

Referring to fig. 12 to 16, the locking structure 340 may have various structural designs for the locking structure 340. In the present embodiment, the mounting cavity 111 is provided with a mounting opening 112 that opens toward the connection portion 220; the locking structure 340 comprises a positioning locking wheel 341 and a locking resetting piece 342; wherein, the positioning lock wheel 341 is sleeved on the adjusting shaft 320 and can move along the axial direction with the adjusting shaft 320, one of the outer periphery of the positioning lock wheel 341 and the periphery of the mounting opening 112 is provided with a locking groove 113 running through along the axial direction of the adjusting shaft 320, and the other is provided with a locking projection 341c matched with the locking groove 113; the locking reset piece 342 is installed in the installation cavity 111, one end of the locking reset piece 342 abuts against the positioning lock wheel 341, and the other end abuts against the inner wall surface of the installation cavity 111 facing the installation opening 112 (as shown in fig. 8 and 9).

Referring to fig. 9, 19 and 20, in particular, the positioning lock wheel 341 is provided with a passage hole 341a, and the positioning lock wheel 341 is sleeved on the adjusting shaft 320 through the passage hole 341 a. A locking protrusion 341c is provided on the outer circumferential surface of the positioning lock wheel 341, and a locking groove 113 (shown in fig. 13) is provided on the inner circumferential edge of the mounting opening 112. When the locking structure 340 is at the initial position, the positioning lock wheel 341 is located at the mounting opening 112, and the locking protrusion 341c on the positioning lock wheel 341 correspondingly matches with the locking groove 113 of the mounting opening 112, so that the positioning lock wheel 341 cannot rotate, and therefore the adjusting shaft 320 sleeved on the fixed adjusting shaft 341 cannot rotate, and thus the adjusting shaft 320 is locked, and the distance cannot be adjusted by using the adjusting shaft 320.

Referring to fig. 4 and 9, when the distance adjustment assembly 300 is used to adjust the distance, the adjustment shaft 320 is pulled outward along the axial direction by the hand-held adjustment button 323 (see F in fig. 9) ₁ Direction) so that the adjusting shaft 320 drives the positioning lock wheel 341 to synchronously move along the axial direction thereof; as shown in fig. 10, until the adjustment shaft 320 moves the positioning lock wheel 341 into the installation cavity 111, the positioning lock wheel 341 is separated from the locking groove 113 of the installation opening 112, thereby unlocking the adjustment shaft 320, so that the adjustment shaft 320 resumes the rotation function. At this time, the adjustment shaft 320 is rotated by the adjustment button 323 (F in FIG. 10) ₂ Direction), the distance adjustment can be achieved, see the above description in detail, inThis is not described in detail. It should be noted that, during the process of unlocking or locking the adjusting shaft 320, the adjusting shaft 320 moves along the axial direction, however, the transmission gear 330 is always meshed with the rack 313 of the central wheel 310, so as to ensure that the rack 313 of the central wheel 310 is driven by the transmission gear 330 to move back and forth after the adjusting shaft 320 is unlocked. It is also worth mentioning that after the user wears the head-mounted display device and unlocks the adjusting shaft 320, the user can push the wearing frame 200 by the forehead, so that the wearing frame 200 moves relative to the main chassis 100 to adaptively adjust the pitch separation.

During the distance adjustment, the positioning lock wheel 341 presses the locking reset piece 342, so that the locking reset piece 342 is compressed to accumulate elastic potential energy. When the distance adjustment is finished, the pulling force on the axial direction of the shaft of the adjustment button 323 is released, and the locking reset piece 342 releases the accumulated elastic potential energy to push the positioning lock wheel 341 towards the mounting opening 112, so as to drive the positioning lock wheel 341 to move back to the mounting opening 112 (i.e. the initial position), so that the locking protrusion 341c on the positioning lock wheel 341 is matched with the locking groove 113 on the periphery of the mounting opening 112, and the adjustment shaft 320 can be locked.

It can be understood that a plurality of locking protrusions 341c may be disposed on the positioning lock wheel 341, and the locking protrusions 341c are arranged along the circumference of the positioning lock wheel 341; correspondingly, the mounting opening 112 is also correspondingly provided with a plurality of locking grooves 113 for respectively matching with the plurality of locking protrusions 341c in a one-to-one correspondence manner. The larger the number of the locking protrusions 341c is, the smaller the distance between two adjacent locking protrusions 341c is, and thus the more detailed the adjustment of the rotation angle of the adjustment shaft 320 is, so that the distance adjustment device can also achieve fine distance adjustment.

Here, the positioning and locking wheel 341 is optionally designed as a gear, so that a plurality of tooth grooves are formed on the outer circumference of the positioning and locking wheel 341, and a locking protrusion 341c is formed between each adjacent two of the tooth grooves; correspondingly, the inner periphery of the mounting opening 112 is also designed as a tooth structure, and each tooth groove of the tooth structure forms a locking groove 113. Due to the design, the rotating adjusting angle of the adjusting shaft 320 can be more detailed, so that the distance adjusting device can realize micro-distance adjustment; moreover, the matching firmness of the locking protrusion 341c of the positioning locking wheel 341 and the locking groove 113 of the mounting opening 112 can be improved, so that the strength of the locking adjusting shaft 320 is enhanced, and the slipping is reduced.

Referring to fig. 9, 19 and 20, further, in order to ensure that the positioning locking wheel 341 and the adjusting shaft 320 can move along the axial direction thereof, the positioning locking wheel 341 is provided with a passage hole 341a for the rotating end 321 of the adjusting shaft 320 to pass through, and the inner periphery of the passage hole 341a is provided with an assembling groove 341b penetrating along the axial direction of the adjusting shaft 320; the outer circumference of the rotating end 321 is convexly provided with a stopping protrusion 32a, and the stopping protrusion 32a can pass through the assembling groove 341b and abut against the side surface of the positioning lock wheel 341 opposite to the locking reset piece 342 through rotation.

When assembling the adjusting shaft 320 and the positioning and locking wheel 341, inserting the passage hole 341a of the positioning and locking wheel 341 to align with the rotation end 321 of the adjusting shaft 320, and aligning the fitting groove 341b on the periphery of the passage hole 341a of the positioning and locking wheel 341 and the stopping protrusion 32a on the rotation end 321 so that the stopping protrusion 32a can pass through the fitting groove 341b; until the stopping projection 32a can pass through the fitting groove 341b, the positioning and locking wheel 341 is rotated by a certain angle (for example, 45 °) so that the fitting groove 341b on the positioning and locking wheel 341 is misaligned with the stopping projection 32a, and thus the stopping projection 32a is brought into contact with the side of the positioning and locking wheel 341 facing away from the locking and resetting member 342. That is, the latch wheel 341 is defined between the stopper projection 32a and the latch restoring member 342.

When the distance adjustment assembly 300 is assembled and the distance is to be adjusted, the hand-held adjustment button 323 pulls the adjustment shaft 320 outward in the axial direction thereof (see F in FIG. 9) ₁ Direction), the adjusting shaft 320 pushes the positioning lock wheel 341 toward the installation cavity 111 through the stopping protrusion 32a, so as to ensure that the positioning lock wheel 341 and the adjusting shaft 320 move along the axial direction thereof, and also ensure that the positioning lock wheel 341 can move into the installation cavity 111, thereby unlocking the adjusting shaft 320. It is understood that the stop protrusion 32a is not necessary, and the positioning lock wheel 341 can be driven to move in the same direction by the friction force between the surface of the adjusting shaft 320 and the positioning lock wheel 341.

Of course, the structure of the locking structure 340 is not limited to the above-described embodiment. In other embodiments, the locking structure 340 may also be a locking screw. Specifically, for example, a lug with a through hole is disposed on the outer circumferential surface of the adjusting shaft 320, and the mounting portion 110 of the main chassis 100 is provided with a plurality of screw holes spaced along the circumference of the adjusting shaft 320; when the adjusting shaft 320 rotates to the lug corresponding to any one of the screw holes, the locking screw is used to pass through the lug and the corresponding screw hole, so as to connect and fix the adjusting shaft 320 and the mounting part 110, thereby limiting the adjusting shaft 320 to rotate continuously, further fixing the wearing frame 200 at the corresponding position, and completing the distance adjustment. When the distance needs to be adjusted again, the locking screw is pulled out, so that the adjusting shaft 320 can be unlocked, and the adjusting shaft 320 recovers the rotating function to adjust the distance.

Referring to fig. 6, 19 and 20, in an embodiment, the transmission gear 330 is provided with a transmission hole 331 connected to the rotation end 321 of the adjustment shaft 320; one of the inner circumference of the transmission hole 331 and the outer circumference of the rotating end 321 is provided with a limit rib 32b extending along the axial direction of the adjusting shaft 320, and the other one is provided with a limit slot 332 inserted and matched with the limit rib 32 b.

Specifically, the adjusting shaft 320 has a limiting rib 32b on the outer peripheral surface of the rotating end 321, and the transmission gear 330 has a limiting slot 332 on the inner peripheral edge of the transmission hole 331. When the distance adjusting assembly 300 is used for adjusting the distance, when the adjusting shaft 320 is pulled outwards along the axial direction by the hand-held adjusting button 323 to unlock the adjusting shaft 320, the limit convex rib 32b on the adjusting shaft 320 is kept inserted into the limit slot 332 and slides along the limit slot 332, so that the transmission gear 330 on the adjusting shaft 320 does not move along the axial direction of the adjusting shaft 320 but is kept meshed with the rack 313 in the process of unlocking the adjusting shaft 320, and after the adjusting shaft 320 is unlocked, the transmission gear 330 can drive the rack 313 to move to adjust the distance.

Referring to fig. 9, 16 and 17, based on any of the above embodiments, the center wheel 310 further includes a mounting shaft 314, the mounting shaft 314 protrudes from the center of the wheel body toward the connecting portion 220 of the wearing frame 200, and is rotatably engaged with the connecting portion 220; the angle adjusting assembly 400 is mounted on the mounting shaft 314 and connected to the connecting portion 220. When adjusting the distance, the center wheel 310 is limited by the angle adjusting assembly 400, so that the center wheel 310 and the wearing frame 200 are kept relatively stationary, and thus the center wheel 310 and the wearing frame 200 can be integrally moved in the front-back direction by the adjusting shaft 320. When the angle is adjusted, the angle adjusting assembly 400 is adjusted, so that the wearing frame 200 and the central wheel 310 rotate relatively, thereby achieving the angle adjustment.

Referring to fig. 5, 6 and 9, in an embodiment, a side surface of the connecting portion 220 is provided with an assembling plate 230, and the assembling plate 230 is provided with an adjusting tooth 231 (as shown in fig. 14 and 15); the angle adjustment assembly 400 includes an adjustment plate 410 and an adjustment reset 420; wherein, the adjusting disk 410 is mounted on the main wheel body 311 and movably penetrates the mounting shaft 314 along the axial direction of the mounting shaft 314, and the adjusting disk 410 is provided with a matching tooth 411 engaged with the adjusting tooth 231; the adjusting and resetting member 420 is arranged between the adjusting disk 410 and the main wheel body 311, one end of the adjusting and resetting member 420 abuts against the adjusting disk 410, and the other end abuts against the main wheel body 311.

Specifically, the connecting portion 220 includes a horizontal plate body 221 connected to the wearing portion 210, and a vertical plate body 222 extending downward from one end of the horizontal plate body 221 away from the other connecting portion 220; a mounting plate 230 is projected from a plate surface of the vertical plate body 222 facing the mounting portion 110, and an adjustment tooth 231 extending in a circumferential direction of the mounting plate 230 is provided on a plate surface of the mounting plate 230. The adjustment teeth 231 may be curved or extend annularly, and may be designed according to the desired adjustment angle range. The vertical plate body 222 is also provided with a mounting hole 201 penetrating through the mounting plate 230; the mounting shaft 314 of the center wheel 310 passes through the mounting hole 201 and is rotatably connected with the connecting part 220; a positioning pin 350 is inserted into the end of the mounting shaft 314, an anti-slip pattern 351 (as shown in fig. 23) is arranged at the end of the positioning pin 350 inserted into the mounting shaft 314, and a shift spring 360 is inserted into the end of the positioning pin 350 located outside the mounting shaft 314 for fixing. Specifically, one end of the positioning pin 350, which is located outside the mounting shaft 314, is provided with a positioning groove 351, the gear spring 360 is provided with a notch 361, and the gear spring 360 is inserted into the positioning groove 351 of the positioning pin 350 through the notch 361.

The adjusting disk 410 is installed on one side of the center wheel 310 facing the connecting portion 220, the adjusting disk 410 is provided with a through hole 414, and the adjusting disk 410 is arranged on the mounting shaft 314 through the through hole 414 and meshed with the adjusting teeth 231 on the assembling disk 230. The adjusting plate 410 can extend and contract along the axial direction of the mounting shaft 314 under the elastic action of the adjusting reset piece 420, so that the assembling plate 230 on the connecting part 220 can rotate relative to the adjusting plate 410 to realize angle adjustment.

As shown in fig. 5 and 6, it is assumed herein that adjacent two tooth grooves of the adjusting teeth 231 are a front tooth groove and a rear tooth groove, respectively, and a convex portion formed between the front tooth groove and the rear tooth groove is a first convex portion for convenience of explanation; one of the convex portions of the fitting tooth 411 is a second convex portion. Initially, the second convex portion of the fitting tooth 411 is engaged with the front tooth groove of the regulating tooth 231. When the angle adjusting assembly 400 is used for adjusting an angle, the wearing frame 200 is manually grasped, so that the wearing frame 200 rotates around the mounting shaft 314 relative to the main chassis 100, at this time, the second convex part of the mating tooth 411 moves out of the front tooth socket of the adjusting tooth 231 and moves towards the rear tooth socket, in the process, the second convex part of the mating tooth 411 spans over the first convex part, and when the second convex part spans over the first convex part, the adjusting disc 410 slightly moves towards the direction close to the main wheel body 311 along the axial direction of the mounting shaft 314 under the action of the first convex part, so as to press the adjusting reset piece 420, and the adjusting reset piece 420 accumulates elastic potential energy; until the second convex part of the fitting tooth 411 passes the first convex part, the adjusting and restoring member 420 releases the elastic potential energy to drive the adjusting disc 410 to displace towards the direction of the connecting part 220 along the axial direction of the mounting shaft 314, and then the second convex part of the adjusting fitting tooth 411 is clamped into the rear tooth groove, so that the adjusting disc 410 and the assembling disc 230 are meshed and fixed, and the wearing frame 200 can be rotated for an angle. If the angle needs to be adjusted continuously, the wearing frame 200 can be rotated continuously in the same manner.

As shown in fig. 6, 14, 15 and 21, in one embodiment, the adjustment teeth 231 of the mounting plate 230 are arc-shaped. The assembling disc 230 is provided with a stop groove 232 at two ends of the adjusting tooth 231, and the stop groove 232 is provided with a first blocking wall 232a and a second blocking wall 232b which are opposite to each other along the extending direction of the adjusting tooth 231; the adjusting plate 410 is provided with a stop rib 412 correspondingly extending into the stop groove 232, and the stop rib 412 can move between the first blocking wall 232a and the second blocking wall 232b along with the rotation of the adjusting plate 410, so as to limit the rotation and adjustment angle of the wearing frame 200 within a certain angle range.

Specifically, the adjusting disk 410 is provided with two stop ribs 412, and the two stop ribs 412 extend along the radial direction of the adjusting disk 410; the two stop ribs 412 respectively extend into the two stop grooves 232 of the mounting plate 230. If the wearing frame 200 rotates upward to adjust the upward-facing angle thereof, at this time, the stop rib 412 rotates synchronously in the corresponding stop groove 232, until the stop rib 412 contacts with the first stop wall 232a of the stop groove 232, the stop rib 412 is blocked by the first stop wall 232a and cannot rotate continuously, and further the wearing frame 200 is restricted from rotating upward, at this time, the wearing frame 200 is adjusted to the maximum upward-facing angle. On the contrary, if the wearing frame 200 is rotated downward to adjust the downward depression angle, at this time, the stop rib 412 is synchronously rotated in the corresponding stop groove 232, until the stop rib 412 contacts with the second stop wall 232b of the stop groove 232, the stop rib 412 is stopped by the second stop wall 232b and cannot rotate continuously, and further the wearing frame 200 is limited to continue to rotate downward, at this time, the wearing frame 200 is adjusted to the maximum downward depression angle.

As shown in fig. 9, 18 and 22, the adjusting plate 410 is further provided with a guide post 413 extending toward the main wheel body 311, and the main wheel body 311 is provided with a guide hole 315 into which the guide post 413 is inserted; the adjusting and resetting member 420 is sleeved on the guide post 413. Specifically, the adjusting and returning member 420 is a spring, the spring is at least partially embedded in the guiding hole 315, one end of the spring abuts against the bottom of the guiding hole 315, and the other end of the spring abuts against the adjusting plate 410. Through the limitation of the guide post 413, the adjusting disk 410 can be stably installed on the center wheel, and the adjusting reset piece 420 can stably stretch and contract along the axial direction of the installation shaft 314, so that the adjusting disk 410 can be stably driven to stretch and contract back and forth.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A head-mounted display device, the head-mounted display device comprising:

a host including a host housing having an interior cavity;

the two sides of the wearing frame are provided with connecting parts extending into the inner cavity;

the distance adjusting assembly is connected with the main case and the connecting part and used for adjusting the distance of the wearing frame moving along the front-back direction relative to the main case; and

the angle adjusting assembly is connected with the connecting part and the distance adjusting assembly and is used for adjusting the angle of the wearing frame rotating along the vertical direction relative to the main case;

the connecting part is provided with an assembling disc, and the assembling disc is provided with adjusting teeth extending along the circumferential direction of the assembling disc; the angle adjusting assembly comprises an adjusting disc, the adjusting disc is mounted on the distance adjusting assembly and movably penetrates through the distance adjusting assembly along the axial direction of the adjusting disc, and the adjusting disc is provided with matching teeth meshed with the adjusting teeth;

the assembling disc is provided with stop grooves positioned at two ends of the adjusting teeth, and each stop groove is provided with a first blocking wall and a second blocking wall which are opposite to each other along the extending direction of the adjusting teeth; the adjusting disc is provided with a stop rib correspondingly extending into the stop groove, and the stop rib can rotate along with the adjusting disc to move between the first retaining wall and the second retaining wall.

2. The head-mounted display device of claim 1, wherein the distance adjustment assembly comprises:

the central wheel comprises a main wheel body arranged on the connecting part and a rack arranged on the main wheel body, and the rack extends along the front-back direction;

the two ends of the adjusting shaft form a rotating end which is rotatably connected with the main case and a transmission end which extends towards the central wheel respectively;

the transmission gear is arranged at the transmission end and meshed with the rack; and

the locking structure is arranged on the main machine shell and connected with the adjusting shaft to lock and unlock the adjusting shaft.

3. The head-mounted display device of claim 2, wherein the inner surface of the main casing is protruded with a mounting portion opposite to the connecting portion, the mounting portion is provided with a mounting cavity for mounting the locking structure; the rotating end of the adjusting shaft penetrates out of the mounting cavity to the outer side of the main case to form an adjusting button.

4. The head-mounted display device according to claim 3, wherein the mounting cavity is provided with a mounting opening that opens toward the connection portion; the locking structure includes:

the positioning lock wheel is sleeved on the adjusting shaft in a sleeving manner and can move with the adjusting shaft along the axial direction of the adjusting shaft, one of the outer periphery of the positioning lock wheel and the periphery of the mounting opening is provided with a locking groove which is communicated along the axial direction of the adjusting shaft, and the other one is provided with a locking bulge matched with the locking groove; and

the locking reset piece is installed in the installation cavity, one end of the locking reset piece abuts against the positioning locking wheel, and the other end of the locking reset piece abuts against the inner wall surface, facing the installation opening, of the installation cavity.

5. The head-mounted display device according to claim 4, wherein the positioning lock wheel is provided with a passage hole through which the rotating end of the adjustment shaft passes, and an inner peripheral edge of the passage hole is provided with a fitting groove penetrating in an axial direction of the adjustment shaft; the periphery of the rotating end is convexly provided with a stopping bulge, and the stopping bulge can penetrate through the assembling groove and is abutted against the side face, back to the locking reset piece, of the positioning lock wheel through rotation.

6. The head-mounted display device according to any one of claims 2 to 5, wherein the transmission gear is provided with a transmission hole connected with the rotation end of the adjustment shaft; one of the inner peripheral edge of the transmission hole and the outer peripheral surface of the rotating end is provided with a limiting convex rib extending along the axial direction of the adjusting shaft, and the other one is provided with a limiting slot inserted and matched with the limiting convex rib.

7. The head-mounted display device of any one of claims 2 to 5, wherein the center wheel further comprises a mounting shaft protruding from the center of the main wheel body toward the connecting portion of the wearing frame and rotatably engaged with the connecting portion; the angle adjusting assembly is mounted on the mounting shaft and connected with the connecting part.

8. The head-mounted display device of claim 7, wherein the angle adjustment assembly further comprises an adjustment reset member disposed between the adjustment plate and the main wheel body, one end of the adjustment reset member abutting against the adjustment plate, and the other end abutting against the main wheel body.

9. The head-mounted display device of claim 8, wherein the adjustment disk is provided with guide posts extending toward the main wheel body, the main wheel body being provided with guide holes into which the guide posts are inserted; the adjusting reset piece is sleeved on the guide post in a sleeved mode, and the adjusting reset piece extends into the guide hole.