CN113419347B

CN113419347B - Head-mounted adjusting device and head-mounted display equipment

Info

Publication number: CN113419347B
Application number: CN202110606600.2A
Authority: CN
Inventors: 刘娟; 王爱良
Original assignee: Weifang Goertek Electronics Co Ltd
Current assignee: Weifang Goertek Electronics Co Ltd
Priority date: 2021-05-31
Filing date: 2021-05-31
Publication date: 2023-01-24
Anticipated expiration: 2041-05-31
Also published as: CN113419347A

Abstract

The invention discloses a head-mounted adjusting device and a head-mounted display device, wherein the head-mounted adjusting device comprises: the control bin is internally provided with an adjusting cavity; the first binding band at least partially moves in and out of the adjusting cavity and is provided with a rack structure; the worm is arranged in the control bin and meshed with the rack structure; and the motor is arranged in the control bin and used for driving the worm to rotate so as to drive the first bandage to move relative to the adjusting cavity, so that the length of the first bandage extending into or out of the adjusting cavity is changed. The technical scheme of the invention aims to provide the head-mounted adjusting device capable of automatically adjusting the binding band, so that a user can easily and accurately adjust the wearing tightness of the head-mounted display equipment, and the use experience of the user is improved.

Description

Head-mounted adjusting device and head-mounted display equipment

Technical Field

The invention relates to the field of head-mounted display equipment, in particular to a head-mounted adjusting device and head-mounted display equipment.

Background

A head-mounted display device such as a virtual reality head-mounted device, an augmented reality head-mounted device, and a mixed reality head-mounted device generally includes a device main body for presenting image information to a user, and a wearing portion for wearing the device main body on the head of the user.

The wearing portion generally includes bands or side arms extending from both ends of the device body to one side, and the bands or side arms are located on both sides of the head of the user after the head-mounted display device is worn on the head of the user. In view of different head circumferences of different users, in order to adapt to wearing of different users, the length of the strap or the side arm needs to be adjusted so as to adjust the wearing tightness of the head-mounted display device.

At present, the length of a binding band or a side arm of the head-mounted display equipment is required to be manually adjusted, so that the head-mounted display equipment is not beneficial to operation of a user.

Disclosure of Invention

The invention mainly aims to provide a head-mounted adjusting device, and aims to provide a head-mounted adjusting device capable of automatically adjusting a binding band, so that a user can easily and accurately adjust the wearing tightness of a head-mounted display device, and the use experience of the user is improved.

In order to achieve the above object, the present invention provides a head-mounted adjusting device, comprising:

the control bin is internally provided with an adjusting cavity;

the first binding band at least partially moves in and out of the adjusting cavity and is provided with a rack structure;

the worm is arranged in the control bin and meshed with the rack structure; and

the motor is arranged in the control bin and used for driving the worm to rotate so as to drive the first binding band to move relative to the adjusting cavity, and therefore the length of the first binding band extending into or out of the adjusting cavity is changed.

Optionally, the control cabin is further provided with a first transmission gear and a second transmission gear, the first transmission gear coaxially rotates with the output shaft of the motor, the second transmission gear coaxially rotates with the worm, the first transmission gear is meshed with the second transmission gear, and the transmission ratio of the first transmission gear to the second transmission gear is smaller than 1.

Optionally, the head-mounted adjusting device further comprises a pressure acquisition element for acquiring a driving pressure for the worm to pull the rack structure.

Optionally, the pressure acquisition member is a piezoelectric sensing piece, and the piezoelectric sensing piece is sleeved at an end of the worm so as to acquire a component force of the driving pressure in the axial direction of the worm.

Optionally, two bearings are further arranged in the control cabin, mounting shafts are arranged at two ends of the worm, and the mounting shafts are mounted on the bearings;

clamping pieces are sleeved outside the two mounting shafts, the two clamping pieces are matched with the two bearings one by one to limit axial displacement of the worm, and the piezoelectric sensing piece is located between the bearings and the clamping pieces.

Optionally, the head-mounted adjusting device further includes a voice module, the voice module is configured to recognize a voice command, and the motor drives the worm according to the voice command.

Optionally, the head-mounted adjusting device further comprises a control button, and the motor drives the worm according to a button instruction of the control button.

Optionally, the control cabin is further provided with a microphone and/or a loudspeaker.

Optionally, the control cabin includes a first support and a second support that are stacked on each other, and the first support and the second support cooperate to form the adjustment cavity.

Optionally, the worm is arranged on one side of the first support, which is away from the second support, a yielding port is formed in the first support, and the worm penetrates through the yielding port, so that at least the part, which is used for being meshed with the rack structure, of the worm can extend into the adjusting cavity.

Optionally, the head-mounted adjustment device further comprises a second strap fixedly connected to the control cabin.

Optionally, a battery is further disposed in the control cabin, and the motor is electrically connected to the battery.

Optionally, on the wearing side of the head-mounted adjusting device, the control cabin is provided with a cushion pad.

Optionally, the headgear adjustment device records the final state of the first strap as it is adjusted into position and stores it for recall by the user.

The invention further provides head-mounted display equipment which comprises the head-mounted adjusting device.

Optionally, the head-mounted display device further includes a device main body, the device main body is provided with a first main control board, and the motor is electrically connected to the first main control board.

Optionally, the head-mounted adjusting device is provided with a second main control board, and the motor is electrically connected with the second main control board.

According to the technical scheme, the motor can drive the worm to rotate, the worm drives the rack structure meshed with the worm, so that the first binding belt can move relative to the adjusting cavity, the tightness of the head-mounted display device can be changed accordingly, and the tightness of the head-mounted display device can be automatically adjusted through the motor. The invention adopts a motor-driven mode to adjust the tightness of the head-mounted display device, thereby avoiding various defects of manual adjustment. The user can be wearing this head mounted display device starter motor and adjust the elasticity, need not the hand and carries out too much action, and adjusts the elasticity that obtains and also can be rather than head looks adaptation. Therefore, the head-mounted adjusting device can enable a user to easily and accurately adjust the wearing tightness of the head-mounted display equipment, and the use experience of the user is improved.

Drawings

In order to more clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the embodiments or technical solutions of 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 view of a headgear adjustment device according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of one embodiment of the headgear adjustment device of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2;

FIG. 4 is a schematic structural view of an embodiment of a cap of the head-mounted adjustment apparatus of the present invention;

FIG. 5 is an exploded view of one embodiment of a third bracket and cushion of the headgear adjustment device of the present invention;

FIG. 6 is an assembly view of one embodiment of a third bracket and bumper of the headgear adjustment device of the present invention;

FIG. 7 is a schematic view of an embodiment of a second bracket of the headgear adjustment device of the present invention;

FIG. 8 is an assembly view of one embodiment of the second bracket, third bracket and cushion of the headgear adjustment device of the present invention;

FIG. 9 is a schematic structural view of a first embodiment of a headgear adjustment assembly according to the present invention;

FIG. 10 is an exploded view of the drive module of the headgear adjustment device of the present invention;

FIG. 11 is an enlarged view of a portion of the assembled state of the drive module of the headgear adjustment device of the present invention;

fig. 12 is a schematic structural view of the head-mounted adjusting device of the present invention in a non-cap state.

The reference numbers indicate:

reference numerals	Name(s)	Reference numerals	Name (R)
				100	Control cabin	210	First bandage
110	First support	211	Rack structure
				111	Let a mouthful	220	Second bandage
112	Screw post	310	Worm screw
				113	First mounting bracket	311	Mounting shaft
120	Second support	320	Electric machine
				121	Bayonet	330	First transmission gear
130	Third support	340	Second transmission gear
				131	Clamping hook	350	Piezoelectric induction piece
132	Support rib	360	Bearing assembly
				140	Fourth support	370	Clamp spring
150	Storehouse cover	400	Microphone (CN)
				151	Microphone hole	500	Loudspeaker
152	Loudspeaker hole	600	Battery with a battery cell
				153	Second mounting bracket	610	Buffer layer
154	Third mounting bracket	700	Buffer cushion
				800	Second main control board	710	Buffer block
910	Wiring terminal	720	Wrapping cloth
				920	Thin wire

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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, back, 8230; etc.) are involved in the embodiment of the present invention, the directional indications are only used for explaining the relative positional relationship between the components, the motion situation, etc. in a specific posture (as shown in the figure), 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, if appearing throughout the text, "and/or" is meant to include three juxtaposed aspects, taking "a and/or B" as an example, including either the a aspect, or the B aspect, or both the a and B aspects. 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.

The invention provides a head-mounted adjusting device.

In an embodiment of the present invention, as shown in fig. 1 to 3, the head-mounted adjusting device includes:

a control cabin 100, which is internally provided with an adjusting cavity;

the first binding band 210 at least partially moves in and out of the adjusting cavity, and the first binding band 210 is provided with a rack structure 211;

the worm 310 is arranged on the control cabin 100 and is meshed with the rack structure 211; and

the motor 320 is arranged on the control cabin 100, and the motor 320 is used for driving the worm 310 to rotate so as to drive the first tie strap 210 to move relative to the adjustment cavity, so that the length of the first tie strap 210 extending into or out of the adjustment cavity is changed.

In the head-mounted adjusting device of the present invention, the motor 320 can drive the worm 310 to rotate, and the worm 310 drives the rack structure 211 engaged therewith, so that the first strap 210 can move relative to the adjusting cavity, and the tightness of the head-mounted display device will change accordingly, that is, the motor 320 can automatically adjust the tightness of the head-mounted display device.

It will be appreciated that the tightness of the head mounted display device is related to the length of the first strap 210 extending into or out of the adjustment cavity. The first strap 210 extends from one end of the adjustment cavity, and as the length of the first strap extending into the adjustment cavity increases, the head-mounted display device becomes more and more tight; when first strap 210 is fully extended into the adjustment cavity, increasing the length of first strap 210 extending out of the adjustment cavity will continue to tighten the head mounted display device. The process of undoing the head mounted display device is the reverse of the process described above. That is, the longer the first strap 210 extends into or out of the adjustment cavity, the more secure the head mounted display device is, and the more secure the first strap 210 will be with the portion extending out of the adjustment cavity will be than if the first strap 210 does not extend out of the adjustment cavity.

Without loss of generality, in the present embodiment, the end of the first strap 210 is provided with a plurality of straight grooves arranged along the extending direction of the first strap 210, thereby forming the rack structure 211, and the spiral teeth of the worm 310 are slidably connected with the straight grooves to realize the meshing of the worm 310 and the rack structure 211. When the worm 310 is rotated by the motor 320, the straight groove slides along the extending direction of the spiral teeth, thereby changing the length of the first strap 210 extending into or out of the adjustment cavity.

Without loss of generality, in the embodiment, the motor 320 rotates forward, that is, the length of the first strap 210 extending into or out of the adjustment cavity is increased, so as to fasten the head-mounted display device; the motor 320 is rotated reversely, so that the length of the first strap 210 extending into or out of the adjusting cavity is increased to loosen the head-mounted display device.

In the prior art, the tightness of the head-mounted display equipment is mostly manually adjusted, and the adjusting process is very complicated. When the head-mounted display equipment is worn on the head of a user, the user can feel whether the tightness is proper, and manual adjustment is very inconvenient at the moment; secondly, the user cannot see the manual adjusting device, and the user needs to grope the manual adjusting device and then adjust according to the impression. If the user manually completes the adjustment of the tightness of the head-mounted display device before wearing, much convenience can be brought, however, the tightness obtained by the adjustment is poor in adaptability to the head of the user under the condition of no wearing feeling. Certainly, can feel after this head-mounted display device wears the elasticity, take off it again, adaptability is transferred and is loosened or the tightening, then wears the inspection elasticity again, so, can compromise regulation degree of accuracy and hand load really, nevertheless, adjust too loaded down with trivial details like this, adjust the time and exempt from the overlength.

In the invention, the tightness of the head-mounted display equipment is adjusted by adopting a motor driving mode, thereby avoiding various defects of manual adjustment. The user can be wearing this head mounted display device starter motor 320 and adjust the elasticity, need not the hand and carries out too much action, and the elasticity that obtains of adjusting also can be rather than head looks adaptation. Therefore, the head-mounted adjusting device can enable a user to easily and accurately adjust the wearing tightness of the head-mounted display equipment, and the use experience of the user is improved.

Further, in this embodiment, as shown in fig. 10, the control cabin 100 is further provided with a first transmission gear 330 and a second transmission gear 340, the first transmission gear 330 rotates coaxially with the output shaft of the motor 320, the second transmission gear 340 rotates coaxially with the worm 310, the first transmission gear 330 is meshed with the second transmission gear 340, and a transmission ratio between the first transmission gear 330 and the second transmission gear 340 is smaller than 1. Thus, the rotation speed of the worm 310 can be reduced to improve the adjustment accuracy of the motor 320; the torque applied to the worm 310 can be increased to ensure that the torque output by the motor 320 is transmitted to the worm 310 enough for the worm 310 to drive the first strap 210.

Further, in this embodiment, as shown in fig. 1 and fig. 2, the head-mounted adjusting device further includes a second strap 220, and the second strap 220 is fixedly connected to the control cabin 100. Specifically, one end of the control pod 100 is connected to the second strap 220, while the first strap 210 extends into the adjustment cavity from the other end. In this way, by controlling the lengths of the first strap 210 and the second strap 220, when the user wears the head-mounted display device, the control cabin 100 can be located behind the brain of the user and balanced with the device body on the front side, thereby improving the wearing experience of the user.

Further, in this embodiment, the head-mounted adjusting device further includes a voice module, the voice module is configured to recognize a voice command, and the motor 320 drives the worm 310 according to the voice command. The user can open, close, rotate forwards or rotate backwards through the voice control motor 320 to adjust the tightness of the head-mounted display device, so that the user is further facilitated, and the user experience is improved. Of course, in other embodiments, it is also convenient that the head-mounted adjusting device further includes a control button, and the motor 320 drives the worm 310 according to a button command of the control button.

Further, in this embodiment, as shown in fig. 4, the control cabin 100 is further provided with a microphone 400 and a speaker 500. The microphone 400 is used for inputting a voice command of a user, and the voice module can output voice through the speaker 500 to confirm the voice command or feed back a control result to the user, so as to improve the interactivity of the voice control function. Of course, in other embodiments, the head-mounted adjusting device may be disposed on the device main body instead of the voice module, the microphone or the speaker, and may also implement voice control.

Further, in this embodiment, the head-mounted adjusting device further includes a pressure collecting element, and the pressure collecting element is used for collecting a driving pressure for the worm 310 to pull the rack structure 211. It will be appreciated that the more tight the head mounted display device, the greater the drive pressure required by the worm 310 to pull the rack structure 211, i.e., the drive pressure can reflect the tightness of the head mounted display device. Therefore, the quantitative adjustment of the tightness can be realized through the driving pressure fed back by the pressure acquisition part, so that the adjustment precision of the head-mounted adjusting device is further improved.

Further, in this embodiment, the pressure collecting member is a piezoelectric sensing piece 350, and the piezoelectric sensing piece 350 is sleeved on an end of the worm 310 to collect a component force of the driving pressure in the axial direction of the worm 310. The worm rod, when pulling the toothed structure of the first strap 210, generates a limited deformation, the force of which, along the axial component of the worm 310, pulls the worm 310, i.e. the worm 310 mainly pulls the first strap 210 in the axial direction, so that the component of the driving pressure in the axial direction of the worm 310 reflects the interaction force between the two to the maximum extent. Of course, in other embodiments, the pressure collecting member may also collect the torque of the driving pressure, and the pressure collecting member may also be other pressure sensors.

Further, in this embodiment, as shown in fig. 10, two bearings 360 are further disposed in the control cabin 100, two ends of the worm 310 are both provided with mounting shafts 311, and the mounting shafts 311 are mounted on the bearings 360; clamping pieces are sleeved outside the two mounting shafts 311, the two clamping pieces are matched with the two bearings 360 one by one to limit the axial displacement of the worm 310, and the piezoelectric sensing piece 350 is located between the bearings 360 and the clamping pieces. Without loss of generality, in the embodiment, the second transmission gear 340 is disposed outside the bearing 360 as one of the fastening members, the fastening member at the other end of the bearing 360 is a snap spring 370 clamped outside the mounting shaft 311, the two fastening members are disposed at opposite ends of the worm 310, and the bearing 360 is disposed therebetween, so as to cooperate with each other to limit the axial displacement of the worm 310; as shown in fig. 11, the piezoelectric sensing piece 350 is installed between the clamp spring 370 and the bearing 360, and when the scroll rod pulls the first strap 210, the reaction force applied to the worm 310 presses the pulling clamp spring 370 toward the bearing 360, so that the component of the driving pressure in the axial direction of the worm 310 can be collected by the piezoelectric sensing piece 350. Of course, in other embodiments, the outer circumference of the mounting shaft 311 may be protruded with two bosses, the two bosses are engaged with the two bearings 360 one by one to limit the axial displacement of the worm 310, the piezoelectric sensing piece 350 is located between the bearings 360 and the bosses, and the component of the driving pressure in the axial direction of the worm 310 may also be collected.

Further, in this embodiment, the motor 320 is turned off when the driving pressure reaches a guard pressure. The protection pressure should be set in consideration of the maximum tolerance tightness of the human body to prevent the first strap 210 and the second strap 220 from tightening the head of the human body too much to cause damage to the health of the user.

Further, in this embodiment, when the first strap 210 is adjusted into position, the headgear adjustment device records the final state of the first strap 210 and stores it for recall by the user. Optionally, the wear adjustment device further stores tolerance pressure values of people with different head circumferences, and when the user wears the head-mounted display for the first time, the tolerance pressure values can be adjusted to gradually control the motor 320 to rotate forward, so that the driving pressure collected by the piezoelectric sensing piece 350 reaches different tolerance pressure values one by one, and the user is asked one by one whether to continue fastening until the tightness suitable for the user is adjusted. If do not accord with user's adaptation pressure in wearing the tolerance pressure value of adjusting device storage, can find a more close tolerance pressure value earlier, make the elasticity of wearing display device approach the adaptation elasticity earlier, finely tune to adaptation pressure again, adjust to the adaptation elasticity with wearing display device, and simultaneously, wear the drive pressure and the storage of display device this moment of record, can directly call this drive pressure when using the user follow-up to wear, control motor 320 operates, can directly adjust to the adaptation elasticity, and needn't adjust gradually again.

Further, in this embodiment, as shown in fig. 3, the control cabin 100 includes a first bracket 110 and a second bracket 120 that are stacked, and the first bracket 110 and the second bracket 120 cooperate to form the adjustment cavity. In this manner, access to first strap 210 and securement of second strap 220 may be facilitated. Without loss of generality, in the present embodiment, the first bracket 110 and the second bracket 120 are connected by screw locking.

Further, in this embodiment, as shown in fig. 3 and fig. 9, the worm 310 is disposed on a side of the first bracket 110 away from the second bracket 120, the first bracket 110 is provided with a position-giving opening 111, and the worm 310 is disposed through the position-giving opening 111, so that at least a portion of the worm 310, which is used for being engaged with the rack structure 211, can extend into the adjusting cavity. Thus, the space of the adjustment cavity does not need to be too large, and only the first strap 210 needs to be accommodated, the first strap 210 can stably move therein, and the worm 310 can stably engage with the rack structure 211 only by extending a part of the spiral teeth into the adjustment cavity. Of course, in other embodiments, the worm 310 may be disposed in the adjusting cavity, and a buckle may be additionally disposed in the adjusting cavity to stabilize the movement of the first strap 210.

Further, in this embodiment, as shown in fig. 3 and 12, a battery 600 is further disposed in the control cabin, and the motor 320 is electrically connected to the battery 600. Without loss of generality, in this embodiment, two first mounting brackets 113 are respectively disposed on two sides of the position-giving opening 111 on one side of the first bracket 110 away from the second bracket 120, and a fastening structure is disposed on the first mounting brackets 113 for fastening the battery 600. And the battery 600 is separately located and lets position mouthful 111 both sides, can make wear adjusting device's weight distribution more even to further promote user's wearing comfort level. To ensure the safety of the battery 600, a buffer layer 610 is further provided on the top of the battery 600, and the buffer layer 610 may be an adhesive buffer collodion.

Further, in the present embodiment, as shown in fig. 2 and 3, the control cabin 100 is provided with a cushion 700 on the wearing side of the head-mounted adjusting device. As such, when the user wears the head-mounted display device, the cushion 700 can be located between the head and the second stand 120, and the wearing comfort of the user can be further improved.

Without loss of generality, in the embodiment, as shown in fig. 5 and 6, the cushion pad 700 is disposed on the third bracket 130, specifically, the cushion pad 700 includes a cushion block 710 and a wrapping cloth 720 sleeved outside the cushion pad 700, and an edge of the wrapping cloth 720 is an elastic rope loop capable of being hooped on the third bracket 130 to enable the cushion pad 700 and the third bracket 130 to be stably connected. Optionally, the buffer block 710 may be made of sponge or pearl wool, and the wrapping cloth 720 may be made of sponge or rubber.

As shown in fig. 5 to 8, a hook 131 is disposed on one side of the third bracket 130 close to the second bracket 120, and a corresponding bayonet 121 is disposed on the second bracket 120, and the two are connected by a snap connection; the third support 130 is still equipped with brace rod 132 in the one side that is close to the second support 120, and this brace rod 132 and the surface cooperation of second support 120, and the cooperation height of brace rod 132 is higher than the cooperation height of trip 131, and the suitable locking of the block of being convenient for, in addition, so set up also is favorable to the quick detach of third support 130, and the reason lies in, the bulk rigidity that the muscle supported will be than the large face contact lowly, and is more laborsaving when unpacing apart.

Further, as shown in fig. 10 and 12, the control cabin 100 further includes a fourth bracket 140 for mounting a driving module, and it is understood that, in the present embodiment, the driving module includes a motor 320, a worm 310, a first transmission gear 330, a second transmission gear 340, a bearing 360, and the like. The fourth bracket 140 is fixedly connected to the first bracket 110 by a screw locking manner, specifically, as shown in fig. 9, a plurality of screw posts 112 are annularly arranged around the abdicating opening 111 for screw connection of the fourth bracket 140, so that a space can be provided between the first bracket 110 and the fourth bracket 140 for accommodating the driving module.

Further, as shown in fig. 10 and 12, a second main control board 800 is disposed on a side of the fourth bracket 140 away from the first bracket 110, and the second main control board 800 has a battery 600 interface, a piezoelectric sensing piece 350 interface and a motor 320 interface for electrically connecting the battery 600, the piezoelectric sensing piece 350 and the motor 320, respectively.

As shown in fig. 4, the control cabin 100 further has a cabin cover 150 covering the first bracket 110, the cabin cover 150 is provided with a microphone hole 151 and a speaker hole 152, and a second mounting bracket 153 surrounding the microphone hole 151 is arranged inside the cabin cover 150 for mounting the microphone 400; the inner side of the cabinet cover 150 is provided with a third mounting bracket 154 surrounding the speaker hole 152 for mounting the speaker 500.

The present invention further provides a head-mounted display device, which includes a device main body and a head-mounted adjusting apparatus, and the specific structure of the head-mounted adjusting apparatus refers to the foregoing embodiments.

The device main body is provided with a first main control board, and the motor 320 is electrically connected with the first main control board; or, the head-mounted adjusting device is provided with a second main control board 800, and the motor 320 is electrically connected with the second main control board 800. That is, whether to set up the main control board on wearing adjusting device can be selected in a flexible way. If the head-mounted adjusting device is not provided with the main control board, the first main control board can be used for controlling the motor and receiving the pressure value fed back by the pressure acquisition part; if the head-mounted adjusting device is provided with the second main control board 800, the electrical components of the head-mounted adjusting device can be directly controlled by the second main control board 800, at this time, the second main control board 800 can be borrowed from the device main body, and the main control board is not separately provided.

In addition, the setting mode of the main control board can be referred to for the setting of the battery on the equipment main body and the head-mounted adjusting device.

Alternatively, as shown in fig. 1, 2 and 9, the first bracket 110 and the second bracket 120 are provided with connection terminals 910, the second strap 220 is provided with thin wires 920, the connection terminals 910 on the first bracket 110 can be used for connecting the main board and the battery 600, the connection terminals 910 on the second bracket 120 are used for connecting the thin wires 920, and the other ends of the thin wires 920 are connected with the device body, so that the head-mounted adjustment device can borrow components of the device body. Without loss of generality, the first bracket 110 and the second bracket 120 embedded with the connection terminals 910, or the second strap 220 embedded with the thin wires 920 may be produced by means of insert molding. Of course, in other embodiments, when the requirement of water resistance is not considered, the connection terminal 910 may not be provided, and the first bracket 110 and the second bracket 120 only need to reserve the wire passing gap.

Of course, in other embodiments, it may also be that the device main body and the head-mounted adjustment device are both provided with independent main control boards, and the main control boards between the two may be in communication connection in an electrical connection or wireless connection manner, so that the second bracket does not need to be provided with a connection terminal, the second strap does not need to be embedded with a thin wire, and the device main body and the head-mounted adjustment device may be shipped separately.

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 adjustment device, comprising:

the control bin is internally provided with an adjusting cavity;

the worm is arranged in the control bin and meshed with the rack structure; and

the motor is arranged in the control bin and used for driving the worm to rotate so as to drive the first bandage to move relative to the adjusting cavity, so that the length of the first bandage extending into or out of the adjusting cavity is changed;

the head-mounted adjusting device further comprises a pressure acquisition piece, and the pressure acquisition piece is used for acquiring the driving pressure for the worm to pull the rack structure;

the control bin is further provided with a first transmission gear and a second transmission gear, the first transmission gear coaxially rotates with an output shaft of the motor, the second transmission gear coaxially rotates with the worm, the first transmission gear is meshed with the second transmission gear, and the transmission ratio of the first transmission gear to the second transmission gear is smaller than 1;

the pressure acquisition piece is a piezoelectric induction sheet which is sleeved at the end part of the worm so as to acquire the component force of the driving pressure in the axial direction of the worm;

two bearings are further arranged in the control bin, mounting shafts are arranged at two ends of the worm, and the mounting shafts are mounted on the bearings;

clamping pieces are sleeved outside the two mounting shafts, the two clamping pieces are matched with the two bearings one by one to limit axial displacement of the worm, and the piezoelectric sensing piece is located between the bearings and the clamping pieces;

the second transmission gear is arranged on the outer side of the bearing and used as one of the clamping pieces, the other clamping piece is a clamp spring clamped outside the mounting shaft, the second transmission gear and the clamp spring are respectively arranged at two opposite ends of the worm, and the bearing is arranged between the second transmission gear and the clamp spring so as to limit the axial displacement of the worm.

2. The headgear adjustment device of claim 1, further comprising a voice module for recognizing a voice command, the motor driving the worm according to the voice command;

and/or the head-wearing adjusting device further comprises a control key, and the motor drives the worm according to a key instruction of the control key.

3. A headgear adjustment device according to claim 2, wherein the control pod is further provided with a microphone and/or a speaker.

4. The headgear adjustment device of claim 1, wherein the control pod includes a first support and a second support disposed one above the other, the first support and the second support cooperating to form the adjustment chamber.

5. The headgear adjustment device according to claim 4, wherein the worm is disposed on a side of the first bracket facing away from the second bracket, the first bracket is provided with a relief opening, and the worm is disposed through the relief opening, so that at least a portion of the worm for engaging with the rack structure can extend into the adjustment cavity.

6. The headgear adjustment device of claim 1, further comprising a second strap, the second strap fixedly connected to the control pod.

7. The headgear adjustment device of claim 1, wherein a battery is also disposed within the control compartment, the motor being electrically connected to the battery;

and/or the wearing side of the head-wearing adjusting device is provided with a cushion pad.

8. The headgear adjustment device of any one of claims 1-7, wherein when the first strap is adjusted into position, the headgear adjustment device records the final state of the first strap and stores for recall by a user.

9. A head-mounted display device comprising the head-mounted adjustment apparatus according to any one of claims 1 to 8.

10. The head-mounted display device of claim 9, wherein the head-mounted display device further comprises a device body provided with a first main control board, the motor being electrically connected to the first main control board;

or, wear adjusting device and be equipped with the second main control board, the motor with second main control board electric connection.