CN115061279B

CN115061279B - Head-mounted display device

Info

Publication number: CN115061279B
Application number: CN202210971643.5A
Authority: CN
Inventors: 杨维坤; 殷奇
Original assignee: Goertek Inc
Current assignee: Goertek Inc
Priority date: 2022-08-15
Filing date: 2022-08-15
Publication date: 2022-10-28
Anticipated expiration: 2042-08-15
Also published as: CN115061279A

Abstract

The invention discloses a head-mounted display device, wherein the head-mounted display device comprises a shell, a face mask, a fixing belt and an adjusting mechanism. The shell is internally provided with a containing cavity; the face mask is attached to the outer wall of the shell and is used for contacting with a human face; adjustment mechanism, at least partial adjustment mechanism locates and holds the intracavity, adjustment mechanism includes fixed subassembly, remove subassembly and elasticity latch, fixed subassembly and fixed band fixed connection, remove subassembly and shell fixed connection, fixed subassembly or removal subassembly are equipped with the rack, the elasticity latch is installed in removal subassembly or fixed subassembly, and elasticity latch and rack cooperation, so that remove the subassembly and remove for fixed subassembly, in order to drive the shell and remove for the fixed band, in order to realize the regulation of the distance between face guard and the people's face. The technical scheme of the invention improves the adjustment precision of the distance between the face mask and the face.

Description

Head-mounted display device

Technical Field

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

Background

Head mounted display device (HMD), i.e. head display. Through various head shows, send optical signal to eyes, can realize different effects such as Virtual Reality (VR), augmented Reality (AR), mixed Reality (MR).

With the development of technology, the application of the head-mounted display device in the life and production of people is more and more extensive. For users using head mounted display devices, there are two consumer groups, one being consumers wearing glasses and the other being consumers not wearing eyes.

In order to realize that same style wears display device, two consumer groups all can use, and present common wear display device structure increases the face of pasting bubble cotton or the bubble cotton of head pasting, also promptly through increasing a detachable plastic spare part for increase the distance between face guard and the people's face, and then give away the space for glasses.

However, the adjustment distance of this method is fixed, and cannot meet the high precision requirements of different adjustment distances of different users.

Disclosure of Invention

The invention mainly aims to provide a head-mounted display device, aiming at improving the adjustment precision of the distance between a face mask and a human face.

To achieve the above object, the present invention provides a head-mounted display device including:

a housing having a receiving cavity formed therein;

the face mask is attached to the outer wall of the shell and is used for being in contact with a human face;

fixing belts; and

adjustment mechanism, at least part adjustment mechanism locates hold the intracavity, adjustment mechanism includes fixed subassembly, removal subassembly and elasticity latch, fixed subassembly with fixed band fixed connection, remove the subassembly with shell fixed connection, fixed subassembly or it is equipped with the rack to remove the subassembly, the elasticity latch install in remove the subassembly or fixed subassembly, just the elasticity latch with the rack cooperation, so that remove the subassembly for fixed subassembly removes, in order to drive the shell for the fixed band removes, in order to realize the regulation of the distance between face guard and the people's face.

Optionally, the elastic latch comprises a fixing portion and an engaging portion which are connected, the fixing assembly comprises a fixing plate, the elastic latch is installed on the fixing plate through the fixing portion, the moving assembly comprises a moving plate, the moving plate is provided with the rack, the engaging portion is engaged with the rack, and the engaging portion and the rack can move relatively under the condition of stress, so that the moving plate moves relative to the fixing plate.

Optionally, the elastic latch is detachably connected with the fixing plate.

Optionally, the elastic latch is mounted at an end of the fixing plate away from the fixing strap.

Optionally, the moving assembly further includes two sliding rails, the two sliding rails are respectively fixed to two opposite sides of the moving plate, and two opposite sides of the fixed plate are respectively located in sliding grooves of the two sliding rails, so that the fixed plate and the sliding rails slide relatively.

Optionally, the distance between the face guard and the face has a first farthest limit position, the fixing assembly further includes a decorative shell, the fixing plate is located inside the decorative shell, the decorative shell includes a decorative upper shell, at least a portion of the decorative upper shell extends into the accommodating cavity, one end of the decorative upper shell, which is far away from the fixing band, is provided with a first stop portion, the slide rail is provided with a slide rail stop portion, and the slide rail stop portion abuts against the first stop portion to lock the first limit position.

Optionally, the distance between the face mask and the face of the person has a second limit position which is the closest, the decorative shell further includes a decorative lower shell, one end of the decorative lower shell, which is far away from the fixing band, has a second stop portion, and one end of the moving plate, which faces the fixing band, abuts against the second stop portion to lock the second limit position.

Optionally, the adjusting mechanism further comprises an elastic member, a first hook is arranged at one end, facing the fixing band, of the fixing plate, a second hook is arranged at one end, facing away from the fixing band, of the moving plate, and two ends of the elastic member are respectively installed on the first hook and the second hook.

Optionally, the number of the elastic members is two along the width direction of the adjusting mechanism.

Optionally, one end of the movable plate, which is far away from the fixing band, is provided with a buffer, and when the distance between the face mask and the face is the shortest, one end of the fixing band, which is far away from the fixing plate, abuts against the buffer.

According to one technical scheme, the shell, the face mask, the fixing belt and the adjusting mechanism are arranged in the head-mounted display device, the face mask is attached to the outer wall of the shell, the fixing component in the adjusting mechanism is fixedly connected with the fixing belt, the moving component in the adjusting mechanism is fixedly connected with the shell, meanwhile, one of the fixing component and the moving component is provided with the rack, the other of the fixing component and the moving component is provided with the elastic latch, and the elastic latch is matched with the rack and can move relatively, so that the moving component and the fixing component are driven to move relatively, the shell is driven to move relative to the fixing belt, and the distance between the face mask and a human face is adjusted. Compared with the mode that the distance between the face mask of the head-mounted display device and the face of the user is adjusted by adopting detachable parts in the prior art, on one hand, the adjustment operability of the distance between the face mask and the face of the user is stronger and the adjustment operation is more convenient through the matching of the elastic latch and the rack; on the other hand, the setting of elasticity latch and rack can realize the accurate regulation of the distance between face guard and the people's face, has improved the regulation precision of the distance between face guard and the people's face to different users to the different demands of distance have been satisfied, thereby have improved the application range of wearing display device, have also improved the use travelling comfort of wearing display device. On the other hand, when the distance between the face mask and the face of a person is adjusted to a proper position, the elastic clamping teeth are meshed with the racks, so that relative locking between the racks and the elastic clamping teeth can be achieved, and accordingly the distance between the face mask and the face of the person can be fixed. On the other hand, when the elastic latch and the rack move relatively, the elastic latch has moving sound and blocking feeling, has stronger mechanical property, provides prompt for distance adjustment, and improves the comfort of adjustment operation. On the last hand, the adjustment precision of the distance between the face mask and the face can be adjusted by adjusting the tooth-shaped distance between the elastic clamping teeth and the rack, so that the requirements of different adjustment precisions can be 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 an exploded view of one embodiment of the head mounted display device of FIG. 1;

FIG. 3 is a cross-sectional view of one embodiment of the head mounted display device of FIG. 1;

FIG. 4 is a schematic structural diagram of the head mounted display device of FIG. 1 with the outer shell removed and the upper decorative shell removed;

FIG. 5 is a schematic view of a fitting structure of an embodiment of a fixing plate and an elastic caliper in the head-mounted display device of FIG. 2;

fig. 6 is a schematic structural diagram of an embodiment of a back surface of the decorative upper shell in the head-mounted display device of fig. 2.

The reference numbers indicate:

reference numerals	Name(s)	Reference numerals	Name(s)
				100	Outer casing	410	Movable board
110	Containing cavity	411	Rack bar
				200	Adjusting mechanism	412	Second hook
300	Fixing groupPiece	420	Sliding rail
				310	Fixing plate	421	Sliding chute
311	First hook	422	Slide rail stop part
				320	Decorative shell	500	Elastic latch
321	Decorative upper shell	510	Fixing part
				322	The first stop part	520	Engaging part
323	Decorative lower casing	600	Elastic piece
				324	The second stop part	700	Buffer piece
400	Moving assembly

The implementation, functional features and advantages of the objects 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 all directional indicators (such as up, down, left, right, front, back \8230;) in the embodiments of the present invention are only used to explain the relative positional relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions relating to "first", "second", etc. in the present invention 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 defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, "and/or" in the whole text includes three schemes, taking a and/or B as an example, including a technical scheme, and a technical scheme that a and B meet simultaneously; in addition, technical solutions between the embodiments may be combined with each other, but must be based on the realization of the technical solutions by a person skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

Head mounted display devices (HMDs), i.e. head displays. Through various head shows, send optical signal to eyes, can realize different effects such as Virtual Reality (VR), augmented Reality (AR), mixed Reality (MR).

However, the adjustment distance of the method is fixed, which cannot meet the high precision requirements of different adjustment distances of different users, resulting in poor user experience. Meanwhile, the method needs to be controlled through a single part, so that the adjustment operability is poor.

In view of this, the present invention provides a head-mounted display device.

Referring to fig. 1 to 3, in the embodiment of the present invention, the head-mounted display device includes a housing 100, a mask (not shown), a fixing band (not shown), and an adjusting mechanism 200, and the head-mounted display device may be a head-mounted display device such as VR glasses and AR glasses.

The mask comprises a shell 100, a containing cavity 110 formed in the shell, and a mask attached to the outer wall of the shell 100 and used for contacting with a human face. Specifically, the head mounted display device has a housing 100, and the housing 100 includes a front case and a rear case. For convenience of explanation, the side close to the face is defined as the back shell, and the side far from the face is defined as the front shell. Preceding shell and backshell surround and form and hold chamber 110, hold and install structures such as screen, camera lens, circuit board that wear display device in the chamber 110. The face mask is mounted on the shell 100, more specifically, the face mask is attached to the outer wall of the rear shell, the overall shape of the face mask matches the shape of the face of a human body, and the face mask is in contact with the human face when the head-mounted display device is worn.

And the fixing band is connected with the shell 100, and when the head-mounted display device is worn, the fixing band is bound on the head of the human body, so that the mask is fixed on the head of the human body, and a user can conveniently use the head-mounted display device.

The adjusting mechanism 200, at least a part of the adjusting mechanism 200 is disposed in the accommodating cavity 110, the adjusting mechanism 200 includes a fixing component 300, a moving component 400 and an elastic latch 500, the fixing component 300 is fixedly connected to the fixing strap, the moving component 400 is fixedly connected to the housing 100, the fixing component 300 or the moving component 400 is provided with a rack 411, the elastic latch 500 is mounted on the moving component 400 or the fixing component 300, and the elastic latch 500 is matched with the rack 411, so that the moving component 400 moves relative to the fixing component 300, the housing 100 is driven to move relative to the fixing strap, and the distance between the face mask and the face is adjusted.

Specifically, a part of the adjusting mechanism 200 is disposed in the accommodating chamber 110, and another part of the adjusting mechanism 200 extends out of the accommodating chamber 110. The fixed component 300 in the adjusting mechanism 200 is fixedly connected with the fixing belt, and the moving component 400 in the adjusting mechanism 200 is fixedly connected with the housing 100, that is, the housing 100 is connected with the fixing belt through the adjusting mechanism 200, and the housing 100 can move relative to the fixing belt under the adjustment of the adjusting mechanism 200; therefore, the mask attached to the outer wall of the rear shell of the housing 100 moves along with the movement of the housing 100, that is, the mask can move under the adjustment of the adjustment mechanism 200, so as to adjust the distance between the mask and the human face. More specifically, one of the fixed member 300 and the movable member 400 is provided with a rack 411, and the other is provided with a resilient latch 500, wherein the resilient latch 500 is engaged with the rack 411 and relatively moves. So, under the effect of elasticity latch 500 and rack 411, drive and remove subassembly 400 and fixed subassembly 300 relative movement to drive shell 100 and remove for the fixed band, and then realize the regulation of the distance between face guard and the people's face. Simultaneously, the cooperation of elasticity latch 500 and rack 411 can realize accurate relative displacement between the two to improve the accurate nature of relative movement between removal subassembly 400 and the fixed subassembly 300, improve the accurate nature of shell 100 relative fixed removal, and then realize the accurate regulation of the distance between face guard and the people's face. In addition, the adjustment precision of the distance between the face mask and the human face can be adjusted by adjusting the tooth-shaped distance between the elastic latch 500 and the rack 411.

According to one technical scheme of the invention, the shell 100, the face mask, the fixing belt and the adjusting mechanism 200 are arranged in the head-mounted display device, the face mask is attached to the outer wall of the shell 100, the fixing component 300 in the adjusting mechanism 200 is fixedly connected with the fixing belt, the moving component 400 in the adjusting mechanism 200 is fixedly connected with the shell 100, meanwhile, one of the fixing component 300 and the moving component 400 is provided with the rack 411, the other of the fixing component 300 and the moving component 400 is provided with the elastic latch 500, and the elastic latch 500 is matched with the rack 411 and can move relatively, so that the moving component 400 and the fixing component 300 are driven to move relatively, the shell 100 is driven to move relative to the fixing belt, and the adjustment of the distance between the face mask and a human face is realized. Compared with the mode that the distance between the mask of the head-mounted display device and the human face is adjusted by adopting detachable parts in the prior art, on one hand, the adjustment operability of the distance between the mask and the human face is stronger and the adjustment operation is more convenient through the matching of the elastic latch 500 and the rack 411; on the other hand, the setting of elasticity latch 500 and rack 411 can realize the accurate regulation of the distance between face guard and the people's face, has improved the regulation precision of the distance between face guard and the people's face to different users to the different demands of distance have been satisfied, thereby have improved the application range of wearing display device, have also improved the use travelling comfort of wearing display device. On the other hand, when the distance between the face mask and the face of a person is adjusted to a proper position, the elastic latch 500 is meshed with the rack 411, so that the rack 411 and the elastic latch 500 can be locked relatively, and the distance between the face mask and the face of the person can be fixed. On the other hand, when the elastic latch 500 and the rack 411 move relatively, the movement sound and the click feeling are generated, the mechanical property is stronger, the prompt is provided for the adjustment of the distance, and the comfort of the adjustment operation is improved. On the last hand, the adjustment precision of the distance between the mask and the face can be adjusted by adjusting the tooth-shaped distance between the elastic latch 500 and the rack 411, so that the requirements of different adjustment precisions can be met.

Referring to fig. 3 and 5, further, the elastic latch 500 includes a fixing portion 510 and an engaging portion 520 connected to each other, the fixing assembly 300 includes the fixing plate 310, the elastic latch 500 is mounted on the fixing plate 310 through the fixing portion 510, the moving assembly 400 includes the moving plate 410, a rack 411 is disposed on the moving plate 410, the engaging portion 520 is engaged with the rack 411, and the rack 411 and the engaging portion 520 can move relatively under a force applied thereto, so that the moving plate 410 moves relative to the fixing plate 310.

Specifically, for convenience of description, the moving direction of the moving plate 410 is taken as a longitudinal direction, the thickness direction of the moving plate 410 is taken as a height direction, and the width direction of the moving plate 410 is taken as a width direction. In the aspect of the present invention shown in the drawings, the sectional shape of the elastic latch 500 is similar to a "W" shape, and the elastic latch 500 includes a fixing portion 510 and an engaging portion 520. Along the length direction of the elastic latch 500, both ends of the elastic latch 500 are the fixing portions 510, that is, both ends of the elastic latch 500 are mounted on the fixing plate 310. Thus, the connection stability between the elastic latch 500 and the fixing plate 310 is facilitated, and the movement stability of the elastic latch 500 and the rack 411 during relative movement is also improved. Of course, the fixing portion 510 may be provided only at one end of the elastic latch 500. The engaging portion 520 is disposed at a middle portion of the elastic latch 500 along a length direction thereof, and the engaging portion 520 is bent up and down along a height direction. In the scheme shown in the figure of the invention, the meshing part 520 is provided with two meshing positions, so that the meshing stability between the meshing part 520 and the rack 411 is improved, and compared with the arrangement of a single meshing position, the meshing disengagement or meshing failure caused by the fact that the meshing part 520 and the rack 411 are not in place in the relative movement process or when the relative movement is suspended is avoided, further the relative displacement failure between the moving plate 410 and the fixed plate 310 is avoided, and further the failure of the precision adjustment of the distance between the face mask and the face is avoided. Of course, the engaging portion 520 may be provided with two or more engaging positions, and the two engaging positions are preferably provided in consideration of the stability of the engagement between the elastic latch 500 and the rack 411 and the smoothness of the relative movement.

When the distance between the face mask and the face of a person is adjusted, the shell 100 is pulled, and the shell 100 drives the moving plate 410 fixedly connected with the shell to move, so that the rack 411 on the moving plate 410 moves relative to the elastic latch 500 on the fixed plate 310, and the moving of the moving plate 410 and the fixed plate 310 is realized, so that the moving of the shell 100 relative to the fixed belt is realized, and the distance between the face mask and the face of the person is adjusted. When the mask is adjusted to a proper position, the rack 411 and the elastic latch 500 can be locked relatively by meshing the rack 411 and the elastic latch 500, so that the distance between the mask and the face can be fixed.

Of course, the rack 411 may be disposed on the fixed plate 310, and the elastic latch 500 may be mounted on the moving plate 410, so that the fixed plate 310 and the moving plate 410 may move relative to each other by the cooperation of the rack 411 and the elastic latch 500.

With reference to fig. 5, the elastic latch 500 is detachably connected to the fixing plate 310. Specifically, the fixing portion 510 of the resilient latch 500 may be provided with fixing holes, and the fixing plate 310 is also provided with fixing holes, and bolts pass through the fixing portion 510 and the fixing holes of the fixing plate 310, thereby mounting the resilient latch 500 on the fixing plate 310. Alternatively, the elastic latch 500 and the fixing plate 310 may be fixed by a snap-fit method or the like. The detachable connection of the elastic latch 500 and the fixing plate 310 facilitates the replacement of the elastic latch 500 when a fault occurs.

With reference to fig. 3 and fig. 5, further, the elastic latch 500 is installed at an end of the fixing plate 310 away from the fixing strap. Specifically, in the embodiment of the present invention, the elastic latch 500 is installed on the fixed plate 310, and the moving plate 410 is provided with a rack 411 along its length direction, so that the rack 411 has the longest length range. The elastic latch 500 is installed at an end of the fixed plate 310 away from the fixed band, so that when the distance between the mask and the human face is located at the closest distance, the elastic latch 500 is engaged with the rack 411 at an end of the moving plate 410 away from the fixed band. When the distance between the face mask and the human face is farthest, the elastic latch 500 is meshed with the rack 411 at one end of the moving plate 410 close to the fixing belt. Like this, the adjustment range of the distance between face guard and the people's face is the whole length scope of rack 411, compares in locating fixed plate 310 along its length direction's one end with elasticity latch 500 for the distance adjustment range between face guard and the people's face is the biggest, thereby has improved wear display device's application scope. Of course, a part of the moving plate 410 may be provided with a rack 411, and the middle of the fixing plate 310 is provided with an elastic latch 500, so that the distance between the mask and the human face can be accurately adjusted.

Referring to fig. 4, further, the moving assembly 400 further includes two sliding rails 420, the two sliding rails 420 are respectively fixed on two opposite sides of the moving plate 410, and two opposite sides of the fixed plate 310 are respectively located in the sliding slots 421 of the two sliding rails 420, so that the fixed plate 310 and the sliding rails 420 slide relatively. Specifically, the two sliding rails 420 are respectively disposed at two ends of the moving plate 410 along the width direction thereof, and the sliding rails 420 are formed with sliding grooves 421 along the height direction. Both ends of the fixing plate 310 in the width direction thereof are respectively fixed in the sliding slots 421, so that the fixing plate 310 and the sliding rails 420 slide relatively. In one embodiment, the sliding rail 420 may be made of POM (polyoxymethylene) material, which has self-lubrication to facilitate the relative sliding between the fixing plate 310 and the sliding groove 421. The movable plate 410 is made of metal, and the movable plate 410 and the two slide rails 420 are molded together by an insert injection molding process, so that the structural rigidity and the strength of the two slide rails 420 are improved.

Referring to fig. 2, fig. 4 and fig. 6, further, the distance between the face mask and the human face has a first limit position which is farthest away, the fixing assembly 300 further includes a decorative shell 320, the fixing plate 310 is located inside the decorative shell 320, the decorative shell 320 includes a decorative upper shell 321, at least a portion of the decorative upper shell 321 extends into the accommodating cavity 110, one end of the decorative upper shell 321, which is far away from the fixing band, is provided with a first stop portion 322, the sliding rail 420 is provided with a sliding rail stop portion 422, and the sliding rail stop portion 422 abuts against the first stop portion 322 to lock the first limit position.

Specifically, the distance between the face mask and the face of the person is set to the farthest position, which is defined as the first extreme position. The fixing assembly 300 further includes a decorative case 320, an inner space is formed in the decorative case 320, and the fixing plate 310 is located in the inner space. The arrangement of the decorative shell 320 improves the overall structural strength of the fixing assembly 300, and also improves the aesthetic property of the fixing assembly 300, and improves the overall aesthetic property of the head-mounted display device. The decorative cover 320 includes a decorative cover 321, and at least a portion of the decorative cover 321 extends into the receiving cavity 110. Along the height direction of the adjusting mechanism 200, the upper part of the decorative upper shell 321 extending into the accommodating cavity 110 is the outer shell 100, and the lower part is the fixing plate 310. The decorative upper shell 321 is provided with a first stop portion 322 at an end away from the fixing band, and the slide rail 420 is provided with a slide rail stop portion 422 at an end facing the fixing band. When the rack 411 and the elastic latch 500 move to the first limit position, the slide rail stop 422 abuts against the first stop 322 to lock the first limit position. Thus, the fit between the slide rail stop 422 and the first stop 322 can prevent the failure of the fit between the movable plate 410 and the fixed plate 310 caused by the moving plate 410 being pulled out when the housing 100 is pulled forward when the distance between the face mask and the face of a person is adjusted. Of course, the slide rail stop 422 may also be disposed in the middle of the slide rail 420, that is, the adjustment range of the distance between the face mask and the face may be adjusted by adjusting the position of the slide rail stop 422 on the slide rail 420.

Referring to fig. 2 and 3, further, the distance between the face mask and the human face has the nearest second limit position, the decorative shell 320 further includes a decorative lower shell 323, one end of the decorative lower shell 323 away from the fixing band has a second stop portion 324, and the moving plate 410 abuts against the second stop portion 324 toward one end of the fixing band to lock the second limit position. Specifically, the distance between the face mask and the face of the person is set to the nearest position, which is defined as the second extreme position. The decorative shell 320 further includes a decorative lower shell 323, and an end of the decorative lower shell 323 away from the fixing band is provided with a second stop portion 324, when the rack 411 and the elastic latch 500 relatively move to the second limit position, the second stop portion 324 abuts against an end of the moving plate 410 facing the fixing band to lock the second limit position. In one embodiment, the moving plate 410 is provided with a screw at an end facing the fixing strap, and the second stop portion 324 is an edge of the decorative lower case 323. When the distance between the face mask and the face of the person is in the second extreme position, the edge of the decorative lower shell 323 abuts against the screw.

Referring to fig. 4, further, the adjusting mechanism 200 further includes an elastic member 600, a first hook 311 is disposed at one end of the fixing plate 310 facing the fixing band, a second hook 412 is disposed at one end of the moving plate 410 away from the fixing band, and two ends of the elastic member 600 are respectively mounted on the first hook 311 and the second hook 412. Specifically, to improve the stability of the relative movement between the fixed plate 310 and the moving plate 410, the adjustment mechanism 200 further includes an elastic member 600. The fixing plate 310 is provided with a first hook 311 at one end facing the fixing band along the length direction thereof, the moving plate 410 is provided with a second hook 412 at one end far away from the fixing band along the length direction thereof, and a certain distance is provided between the first hook 311 and the second hook 412. The two ends of the elastic member 600 along the length direction thereof are respectively installed at the first hook 311 and the second hook 412, so that the micro displacement during the relative movement of the fixed plate 310 and the moving plate 410 is avoided by adjusting the elastic member 600, and the stability of the relative movement between the fixed plate 310 and the moving plate 410 is improved. In one embodiment, the elastic member 600 is a tension spring, and pull rings at two ends of the tension spring are respectively sleeved on the first hook 311 and the second hook 412. Of course, the elastic member 600 may be an elastic band or the like.

Further, two elastic members 600 are provided at intervals in the width direction of the adjustment mechanism 200. Specifically, in order to further improve the stability of the relative movement between the fixed plate 310 and the moving plate 410, the first hook 311 and the second hook 412 are disposed on two opposite sides of the moving slot along the width direction of the adjusting mechanism 200, that is, the adjusting mechanism 200 is provided with two elastic members 600. Therefore, the stability of the relative movement of the fixed plate 310 and the movable plate 410, that is, the stability of the distance adjusting process between the face mask and the human face, is further improved, and the adjusting deviation and the adjusting displacement are avoided.

Referring to fig. 3 and 4, further, a buffer 700 is disposed at an end of the moving plate 410 away from the fixing strap, and when the distance between the face mask and the human face is the shortest, an end of the fixing plate 310 away from the fixing strap abuts against the buffer 700. Specifically, along the length direction of the adjusting mechanism 200, a buffer 700 is disposed at an end of the moving plate 410 away from the fixing strap, and in an embodiment, the buffer 700 is disposed around the outer periphery of the second hook 412. Therefore, when the distance between the mask and the human face is the shortest, under the action of the tensile force of the elastic element 600, the fixed plate 310 abuts against the buffer element 700 at the periphery of the second hook 412 of the movable plate 410, so that noise and noise generated by direct abutting contact of the fixed plate 310 and the movable plate 410 are avoided, and the use comfort of the head-mounted display device is improved. In an embodiment, the buffer 700 is a noise reduction silicone, but the buffer 700 may also be rubber.

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

Claims

1. A head-mounted display device, comprising:

a housing having a receiving cavity formed therein;

fixing belts; and

the adjusting mechanism is arranged in the accommodating cavity, at least part of the adjusting mechanism comprises a fixed component, a movable component and an elastic latch, the fixed component is fixedly connected with the fixing belt, the movable component is fixedly connected with the shell, the fixed component or the movable component is provided with a rack, the elastic latch is arranged on the movable component or the fixed component and matched with the rack, so that the movable component moves relative to the fixed component to drive the shell to move relative to the fixing belt, and the adjustment of the distance between the face mask and the face is realized;

the fixed component comprises a fixed plate, the elastic clamping teeth are mounted on the fixed plate, the movable component comprises a movable plate, the rack is arranged on the movable plate, the movable component further comprises two slide rails, the two slide rails are respectively fixed on two opposite sides of the movable plate, the two opposite sides of the fixed plate are respectively located in sliding grooves of the two slide rails, so that the fixed plate and the slide rails slide relatively, the distance between the face mask and the face of a person is provided with a first farthest limit position, the fixed component further comprises a decorative shell, the fixed plate is located in the decorative shell, the decorative shell comprises a decorative upper shell, at least part of the decorative upper shell extends into the accommodating cavity, one end, far away from the fixed belt, of the decorative upper shell is provided with a first stop portion, the slide rails are provided with slide rail stop portions, and the slide rail stop portions are abutted to each other to lock the first limit position.

2. The head-mounted display device of claim 1, wherein the elastic latch comprises a fixed portion and an engaging portion connected to each other, the elastic latch is mounted to the fixed plate through the fixed portion, the engaging portion is engaged with the rack and is capable of moving relative to the rack under a force, so that the moving plate moves relative to the fixed plate.

3. The head-mounted display device of claim 1, wherein the resilient latch is removably coupled to the fixed plate.

4. The head-mounted display device of claim 1, wherein the elastic latch is mounted at an end of the fixing plate away from the fixing strap.

5. The head-mounted display device of claim 1, wherein the distance between the face mask and the human face has a second limit position which is closest to the face, the decorative shell further comprises a decorative lower shell, one end of the decorative lower shell, which is far away from the fixing band, has a second stop portion, and the moving plate abuts against the second stop portion towards one end of the fixing band to lock the second limit position.

6. The head-mounted display device according to any one of claims 1 to 5, wherein the adjusting mechanism further comprises an elastic member, a first hook is disposed at an end of the fixing plate facing the fixing band, a second hook is disposed at an end of the moving plate away from the fixing band, and two ends of the elastic member are respectively mounted on the first hook and the second hook.

7. The head-mounted display device according to claim 6, wherein the elastic member is provided in two at intervals in a width direction of the adjustment mechanism.

8. The head-mounted display device according to any one of claims 1 to 5, wherein a buffer is provided at an end of the moving plate away from the fixing strap, and when the face shield is closest to a human face, an end of the fixing plate away from the fixing strap abuts against the buffer.