CN216478806U - Gear box mechanism and VR/AR bandage adjusting device - Google Patents

Abstract

The utility model discloses a gear box mechanism and a VR/AR bandage adjusting device, wherein the gear box mechanism comprises a gear set, a transmission assembly and a driving piece, the gear set comprises a driving wheel and a driven wheel meshed with the driving wheel, the transmission assembly comprises a transmission shaft connected with the driving wheel, a non-return piece connected with the other end of the transmission shaft and a transmission base connected with the non-return piece; the driving piece is connected with the transmission base, drives the transmission base to rotate, and transmits power to the driving wheel through the non-return piece and the transmission shaft so as to drive the driven wheel to rotate; through the rotary driving piece, through transmission assembly's transmission effect, drive the action wheel and rotate to confirm to rotate from the driving wheel, be provided with non return spare on transmission assembly, after being used for preventing to loosen the driving piece, the action wheel takes place to turn round, and adjustment process is more steady, sets up above-mentioned gear box mechanism on the VR/AR bandage adjusting device, and convenient and fast accurate regulation bandage length more improves user experience.

Description

Gear box mechanism and VR/AR bandage adjusting device

Technical Field

The utility model belongs to the technical field of transmission devices, and particularly relates to a gear box mechanism and a VR/AR bandage adjusting device.

Background

The system is a system simulation system which can create and experience a virtual world, generates a simulation environment by using a computer, is an interactive three-dimensional dynamic view and entity behavior system simulation with multi-source information fusion, and enables a user to be immersed in the environment.

The method is an augmented reality technology, which is a technology for calculating the position and angle of a camera image in real time and adding corresponding images, videos and 3D models, and aims to sleeve a virtual world on a screen in the real world and interact with the virtual world.

And AR technology centers, generally require users to wear related glasses or helmets and other devices, the head circumference of the users is different, and the hardware requirements of VR/AR glasses or helmets and the like are different, therefore, the VR/AR glasses or helmets generally need to be designed into structures with adjustable head circumference.

The bandage adjustment mode of traditional buckle is more troublesome, generally all needs the user to take structures such as glasses or helmet off from the head, adjusts, tries on after adjusting again, repeated adjustment, and whole adjustment process is loaded down with trivial details, and adjusts inefficiency, and the customer feels relatively poor.

Disclosure of Invention

The utility model aims to provide a gear box mechanism and a VR/AR strap adjusting device, and aims to solve the problems that the traditional adjusting structure is complex, the external dimension is large, the strap adjusting accuracy and stability are poor in VR/AR equipment and the like in the prior art.

In order to realize the purpose of the utility model, the utility model adopts the following technical scheme to realize:

in one aspect, the present invention provides a gearbox mechanism comprising:

the gear set comprises a driving wheel and a driven wheel, and the driving wheel and the driven wheel are meshed with each other;

the transmission assembly comprises a transmission shaft connected to the driving wheel, a check piece connected with the other end of the transmission shaft and a transmission base connected with the check piece;

the driving piece, the driving piece with the transmission pedestal connection, the driving piece drives the transmission pedestal rotates, through the non return spare and the transmission shaft transmits power for the action wheel, and then drives from the driving wheel rotation.

In some embodiments of the present application, the power transmission device further comprises a housing, wherein a mounting cavity is formed in the housing, the power transmission assembly is formed in the mounting cavity, and a locking portion is further arranged on the housing and used for locking the power transmission assembly in the mounting cavity.

In some embodiments of the present application, the locking portion is a self-locking plate formed on the side wall of the housing, the end portion of the self-locking plate is formed with a locking block, and a chamfer is formed on the locking block.

In some embodiments of this application, action wheel fixed connection is on the drive disc, the drive disc below is formed with first spread groove, be formed with the second spread groove on the non return spare, the both ends of transmission shaft are located respectively first spread groove with in the second spread groove.

In some embodiments of the present application, both ends of the transmission shaft are formed with a plurality of transmission surfaces contacting sidewalls of the first and second connection grooves;

the driving piece is a turntable, and anti-skid patterns are formed on the side wall of the turntable.

In some embodiments of this application, the transmission base bottom is formed with the connecting axle, be formed with on the driving piece with the constant head tank that the connecting axle cross sectional shape suited, the shell bottom is formed with the through-hole, the connecting axle passes the through-hole is connected in the constant head tank of driving piece.

In some embodiments of the present application, a plurality of check rods are formed in the circumferential direction of the check member, one end of each check rod is fixed to the check member, the other end of each check rod is a free end, and a movable groove is formed between each check rod and the check member;

the surface of the transmission base is provided with a plurality of driving blocks along the circumferential direction, and the driving blocks correspond to the check rods one to one.

In some embodiments of the present application, the drive disk further comprises a support sleeve, the support sleeve is located in the shell and used for assisting in supporting the drive disk, an internal gear is formed on the support sleeve, and the free end of the check rod is positioned on the internal gear;

when the driving block drives the check piece to rotate, the check rod rotates along the inner gear; after the rotation is stopped, the non-return piece is prevented from rotating under the contact action of the non-return rod and the inner gear; when the driving block rotates reversely, the driving block pushes the check rod towards the direction of the movable groove along with the reverse rotation, and the free end of the check rod is separated from the internal gear to realize the reverse rotation.

In some embodiments of the present application, the support sleeve is positioned between the bottom of the support sleeve and the bottom surface of the housing; and/or the presence of a gas in the gas,

the side wall of the supporting sleeve and the side wall of the shell; and/or the presence of a gas in the atmosphere,

and a sealing ring is arranged between the top of the support sleeve and the driving disc.

In another aspect, the utility model also provides a VR/AR strap adjustment apparatus comprising a strap and any one of the gear box mechanisms described above.

Compared with the prior art, the utility model has the advantages and positive effects that:

the gear box mechanism that this application relates through the rotatory driving piece, through transmission assembly's transmission effect, drives the action wheel and rotates to confirm to rotate from the driving wheel, be provided with the non return spare on transmission assembly for after preventing to loosen the driving piece, the action wheel takes place to turn round, and the process of control and adjustment is more steady.

Set up this gear box structure on VR/AR bandage adjusting device, bandage end connection is from the driving wheel, under the condition of needs adjustment bandage elasticity, user rotary driving spare can be in order to realize the rotation from the driving wheel, the elasticity of accurate stable regulation bandage, the user adjustment is convenient, need not to take off VR/AR equipment from the beginning and can accomplish the adjustment process, adjustment back bandage length more is favorable to the adaptation user, improve and use the impression, the comfort is stronger.

Other features and advantages of the present invention will become more apparent from the following detailed description of the utility model when taken in conjunction with the accompanying drawings.

Drawings

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

FIG. 1 is a schematic view of a mounting arrangement for one embodiment of a gearbox mechanism as set forth in the present disclosure;

FIG. 2 is a top view of one embodiment of the proposed gearbox mechanism;

FIG. 3 is a cross-sectional view A-A of FIG. 2;

FIG. 4 is an exploded view of one embodiment of the proposed gearbox mechanism;

FIG. 5 is a schematic view of the drive member construction;

FIG. 6 is a schematic view of a self-locking tab;

FIG. 7 is a schematic structural diagram of a driving wheel and a driving disk according to an embodiment of the present invention;

FIG. 8 is a schematic view of a drive shaft configuration;

FIG. 9 is a schematic view of the transmission base structure;

FIG. 10 is a schematic view of a check construction;

FIG. 11 is a schematic view of a support sleeve construction;

FIG. 12 is a schematic view of the check rod and internal gear position;

in the figure, the position of the upper end of the main shaft,

100. a gear set;

110. a driving wheel; 111. a driving disk; 112. a first connecting groove; 113. positioning strip

120. A driven wheel; 121. an adjustment shaft;

200. a transmission assembly;

210. a drive shaft; 211. a driving surface; 212. a fixing hole;

220. a check member; 221. a check rod; 222. a movable groove; 223. a second connecting groove; 234. a second drive face;

230. a transmission base; 231. a drive block; 232. a connecting shaft; 233. cutting grooves in a transmission manner; 234. a first drive face;

300. a drive member; 310. positioning a groove; 320. anti-skid patterns;

400. a support sleeve; 410. an internal gear;

500. a housing; 510. a self-locking plate; 511. a locking block;

600. and (5) sealing rings.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, 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 application.

In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.

The terms "first", "second" and "first" 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 one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically coupled, may be directly coupled, or may be indirectly coupled through an intermediary. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the utility model. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.

As shown in fig. 1 to 4, the gear box mechanism of the present embodiment includes a gear set 100, a transmission assembly 200 and a driving member 300.

The gear set 100 comprises a driving wheel 110 and a driven wheel 120, the driving wheel 110 and the driven wheel 120 are meshed with each other, and the driving wheel 110 rotates to drive the driven wheel 120 to rotate;

the transmission assembly 200 comprises a transmission shaft 210, a check member 220 and a transmission base 230, wherein one end of the transmission shaft 210 is connected with the driving wheel 110, the other end of the transmission shaft is connected with the check member 220, the check member 220 is connected to the transmission base 230, and when the transmission base 230 rotates, the check member 220 is driven to rotate, so that the driving wheel 110 is driven to rotate through the connection effect of the transmission shaft 210;

the driving member 300 is connected below the transmission base 230, the driving member 300 provides power for the rotation of the transmission base 230, and the user rotates the driving member 300 to drive the transmission base 230 to rotate, so as to transmit power to the driving wheel 110 through the stopping member 220 and the transmission shaft 210.

The transmission assembly 200 is arranged in the shell 500, the shell 500 plays a role in protection and support, an installation cavity is formed in the shell 500, the transmission assembly 200 is formed in the installation cavity, and a locking part is further formed on the shell 500 and used for locking the transmission assembly 200 in the installation cavity to prevent the transmission assembly 200 from being separated.

As shown in fig. 5, the driving member 300 is a turntable, and the side wall of the turntable is formed with an anti-slip pattern 320, and the anti-slip pattern 320 can increase the friction force between the user and the contact surface of the driving member 300, so that the operator can rotate the driving member 300 conveniently.

As shown in fig. 6, specifically, the locking portion is a plurality of self-locking pieces 510 formed on the side wall of the housing 500, the plurality of self-locking pieces 510 are uniformly distributed at the top end of the side wall of the housing 500, a locking block 511 is formed at the end of the self-locking piece 510 close to the opening of the housing 500, and the locking block 511 protrudes from the inner wall of the housing 500 and faces the central line direction of the housing 500.

The locking block 511 is provided with a chamfer, the self-locking plate 510 deflects towards the outer circumference direction due to the effect of the chamfer in the installation process of the transmission assembly 200, and after the transmission assembly 200 is completely installed, the self-locking plate 510 returns inwards under the elastic action of the self-locking plate, and at the moment, the locking block 511 is pressed on the top of the transmission device to lock the transmission assembly 200 in the installation cavity.

As shown in fig. 7, in order to facilitate the connection between the driving wheel 110 and the transmission shaft 210, the lower portion of the driving wheel 110 is fixedly connected to the driving disk 111, and the driving disk 111 is fixedly connected to the driving wheel 110, and the synchronous rotation is achieved.

The two ends of the transmission shaft 210 are respectively connected with the driving disc 111 and the check piece 220, a first connecting groove 112 is formed below the driving disc 111, a second connecting groove 223 is formed on the check piece 220, and the two ends of the transmission shaft 210 are respectively located in the first connecting groove 112 and the second connecting groove 223.

As shown in fig. 8, in order to realize the transmission function of the transmission shaft 210, a plurality of transmission surfaces 211 are formed at both ends of the transmission shaft 210, and corresponding to the transmission surfaces 211 at both ends of the transmission shaft 210, mounting surfaces are formed on the inner walls of the first connection groove 112 and the second connection groove 223, and are in contact connection with the transmission surfaces 211, and under the mutual contact action of the mounting surfaces and the transmission surfaces 211, the check member 220 drives the transmission shaft 210 and the driving disk 111 to rotate synchronously.

In some embodiments of the present application, a plurality of positioning bars 113 are further disposed in the first connecting groove 112 and the second connecting groove 223, and the positioning bars 113 may assist in positioning two ends of the transmission shaft 210, which is beneficial to mounting and fixing the transmission shaft 210.

Fixing holes 212 are further formed in both end surfaces of the transmission shaft 210, and after both ends of the transmission shaft 210 are coupled into the first coupling groove 112 and the second coupling groove 223, the transmission shaft 210 is further fixed between the driving disk 111 and the check member 220 by a fastening member such as a fastening screw, thereby achieving further coupling and fixing.

As shown in fig. 9, the driving member 300 is connected to the transmission base 230 through a connecting shaft 232, the connecting shaft 232 is formed at the bottom of the transmission base 230, the sectional shape of the connecting shaft 232 is non-circular, or a transmission slot 233 is formed on the cylindrical connecting shaft 232 to achieve the purpose of transmission, a positioning groove 310 adapted to the sectional shape of the connecting shaft 232 is formed on the driving member 300, and when a user operates the driving member 300 to rotate, the transmission base 230 synchronously rotates under the transmission action of the connecting shaft 232.

The driving member 300 is located outside the housing 500, the other end of the connecting shaft 232 extends outside the housing 500, a through hole is formed at the bottom of the housing 500, and the connecting shaft 232 passes through the through hole and is connected in the positioning groove 310 of the driving member 300.

As shown in fig. 10, the check 220 is used to prevent the rotational motion of the driving wheel 110 after the rotation is completed, and specifically, a plurality of check rods 221 are formed in the circumferential direction of the check 220, and the check rods 221 are arranged along the circumferential direction of the check 220 and are oriented uniformly; check rod 221 has one end fixed to check member 220 and the other end being a free end, a movable groove 222 is formed between check rod 221 and check member 220, and the free ends of check rod 221 are oriented in the same direction and are all arranged clockwise or counterclockwise, so that the check directions of check member 220 are the same.

The check 220 is mounted on the transmission base 230, and is placed on the top surface of the transmission base 230, a plurality of driving blocks 231 are formed on the surface of the transmission base 230 along the circumferential direction, the check 220 is placed in the region formed by the plurality of driving blocks 231, the driving blocks 231 correspond to the check rods 221 one by one, and the driving blocks 231 are respectively in contact connection with the outer sides of the check rods 221 of the check 220.

In other embodiments of the present application, as shown in fig. 11, a supporting sleeve 400 is disposed outside the transmission assembly 200, the supporting sleeve 400 is also mounted in the housing shell for assisting in supporting the driving disk 111, the lower surface of the driving disk 111 is connected in the supporting sleeve 400 in a contact manner, in order to realize the positioning of the driving disk 111 and prevent the driving disk 111 from shifting during the later rotation process, a positioning ring is formed at the bottom of the driving disk 111, corresponding to the size of the positioning ring, a revolving groove is formed on the top surface of the supporting sleeve 400, and the positioning ring of the driving disk 111 is located in the revolving groove to limit the driving disk 111.

As shown in fig. 12, the supporting sleeve 400 is formed with an internal gear 410, the free end of the check rod 221 is positioned on the internal gear 410, the driving block 231 is formed with a first driving surface 234, the corresponding check 220 is formed with a second driving surface 234, and in the installed state, the first driving surface 234 is in contact connection with the second driving surface 234.

When the driving block 231 drives the check member 220 to rotate, the check rod 221 rotates along the inner gear 410; since the free end of the check rod 221 has a certain amount of elasticity, during the rotation process, the free end of the check rod 221 is deflected to the direction of the movable groove 222 by a certain angle, and can move along the surface of the inner gear 410 in sequence.

After stopping the rotation, the check 220 is prevented from being rotated back by the contact between the check rod 221 and the inner gear 410.

When the driving block 231 rotates in the reverse direction, the driving block 231 pushes the check rod 221 toward the movable groove 222 as the reverse rotation proceeds, and as the reverse rotation proceeds, the free end of the check rod 221 escapes from the internal gear 410, and the driving block 231 compresses the free end of the check rod 221 into the movable groove 222, thereby achieving the reverse rotation.

In other embodiments, in order to reduce contact and collision between different parts during rotation and reduce the volume of rotation during operation, a sealing ring 600 is disposed between the bottom of the support sleeve 400 and the bottom surface of the housing 500 and/or between the side wall of the support sleeve 400 and the side wall of the housing 500 and/or between the top of the support sleeve 400 and the driving disk 111.

Further, a connecting hole is further formed in the shaft end of the connecting shaft 232 of the transmission base 230, an internal thread or a hot-melt nut is arranged in the connecting hole, after the transmission base 230 and the driving member 300 are connected and positioned in the positioning groove 310 through the connecting shaft 232, fasteners such as fastening screws penetrate through the bottom of the driving member 300 and are connected into the connecting hole of the transmission shaft 210, and the transmission base 230 and the driving member 300 are fixed.

The application has still provided a VR/AR bandage adjusting device, and it includes above-mentioned gear box mechanism and connects the bandage in this gear box mechanism, and the bandage is used for adjusting the elasticity of VR/AR equipment at the user's head, and the bandage can adopt unilateral regulation also can adopt bilateral regulation, and the regulation end setting of bandage is on this gear box mechanism follows regulating spindle 121 of driving wheel 120, regulating spindle 121 and follow synchronous rotation between the wheel 120.

When the gear box mechanism is adjusted in a single-side mode, the driven wheel 120 is arranged on the gear box mechanism, the other end of the binding belt is fixed, the adjusting end of the binding belt rotates along with the adjusting shaft 121 along with the rotation of the driven wheel 120, and the binding belt is wound on or released from the adjusting shaft 121.

During bilateral adjustment, two driven wheels 120 are matched with the driving wheel 110 on the gear box mechanism, two ends of the binding band are respectively fixed on one adjusting shaft 121, the driving wheel 110 rotates, and two ends of the binding band respectively extend or shorten along with the respective adjusting shaft 121, so that bilateral synchronous adjustment is realized.

The specific working mode is as follows:

the two ends of the transmission shaft 210 are respectively connected into the first connecting groove 112 of the driving disc 111 and the second connecting groove 223 of the check member 220, the two ends are further fixed through fastening screws, the driving disc 111 and the check member 220 are fixedly connected, the check member 220 is placed in an installation space formed by the driving block 231 on the transmission base 230, the first driving surface 234 on the driving block 231 is in contact connection with the second driving surface 234 on the check member 220, the connecting shaft 232 at the tail end of the transmission base 230 passes through a through hole at the bottom of the housing 500 and then is connected with the driving member 300, and the connecting shaft is further fixedly connected through fastening screws.

The positioning ring below the driving disk 111 is positioned in the rotary groove of the support sleeve 400 to provide support and limit for the movement of the driving disk 111, the driven wheel 120 is connected with the driving wheel 110 in a matching way, and the binding belt is fixed on the adjusting shaft 121 of the driven wheel 120.

Together with the support sleeve 400 and the driving assembly 200, are pressed into the housing 500, and the self-locking tab 510 and the locking block 511 lock them in the housing 500.

When the tightness of the strap needs to be adjusted, the direction shown in fig. 12 is taken as an example for explanation:

in the tightening process of the binding band, the driving element 300 is rotated clockwise, the first driving surface 234 on the driving block 231 drives the second driving surface 234 on the check element 220 to drive the check element 220 to rotate clockwise, and at this time, due to the elasticity of the check rod 221, the free end of the check rod deflects inwards towards the circle center, and is separated from the internal gear 410 to move clockwise along the internal gear 410.

The check member 220 rotates to drive the driving disc 111 and the driving wheel 110 to rotate under the action of the transmission shaft 210, so as to drive the driven wheel 120 to rotate along the same adjusting direction, and the binding bands are wound on the adjusting shaft 121 to tighten the binding bands.

After stopping the rotation of the driving member 300, the driving block 231 stops acting on the check member 220, and at this time, the check member 220 is restored to the internal teeth of the corresponding internal gear 410, thereby effectively preventing the brake wheel from rotating.

When the strap needs to be loosened, the driving element 300 is rotated reversely, as shown in fig. 12, at this time, the driving element 300 rotates counterclockwise, at this time, the first driving surface 234 moves in a direction away from the second driving surface 234, at this time, the driving block 231 presses the check rod 221 in a direction toward the movable groove 222, the free end of the check rod 221 is pulled out from the internal gear 410, at this time, the anti-rotation function of the check rod 221 is cancelled, the driving element 300 rotates freely, the driving wheel 110 rotates in a reverse direction, and therefore the adjusting rod is driven to rotate reversely, and the strap is released.

The technical scheme that this application relates adjusts the accuracy, and the user need not to take off VR AR equipment and carry out the bandage and adjust, can realize adjusting in real time under the condition of wearing, and is better to the adaptability of head, adjusts convenient and simple structure reliable, adjusts stably, and user experience is good.

In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The above embodiments are only specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention, and therefore, the scope of the present invention shall be subject to the claims.

Claims (10)

1. A gear box mechanism is characterized in that,

the gear set comprises a driving wheel and a driven wheel, and the driving wheel and the driven wheel are meshed with each other;

the transmission assembly comprises a transmission shaft connected to the driving wheel, a check piece connected with the other end of the transmission shaft and a transmission base connected with the check piece;

the driving piece, the driving piece with the transmission pedestal connection, the driving piece drives the transmission pedestal rotates, through the non return spare and the transmission shaft transmits power for the action wheel, and then drives from the driving wheel rotation.

2. A gearbox mechanism according to claim 1,

the transmission assembly is characterized by further comprising a shell, a mounting cavity is formed in the shell, the transmission assembly is formed in the mounting cavity, and a locking portion is further arranged on the shell and used for locking the transmission assembly in the mounting cavity.

3. A gearbox mechanism according to claim 2,

the locking portion is formed on the self-locking plate on the side wall of the shell, a locking block is formed at the end of the self-locking plate, and a diagonal plane is formed on the locking block.

4. A gearbox mechanism according to claim 2,

the driving wheel is fixedly connected to the driving disc, a first connecting groove is formed below the driving disc, a second connecting groove is formed in the check piece, and two ends of the transmission shaft are located in the first connecting groove and the second connecting groove respectively.

5. A gearbox mechanism according to claim 4,

a plurality of transmission surfaces are formed at two ends of the transmission shaft, and the transmission surfaces are contacted with the side walls of the first connecting groove and the second connecting groove;

the driving piece is a turntable, and anti-skidding patterns are formed on the side wall of the turntable.

6. A gearbox mechanism according to claim 2,

the bottom of the transmission base is provided with a connecting shaft, the driving part is provided with a positioning groove matched with the cross section of the connecting shaft in shape, the bottom of the shell is provided with a through hole, and the connecting shaft penetrates through the through hole to be connected in the positioning groove of the driving part.

7. A gearbox mechanism according to claim 4,

a plurality of check rods are formed in the circumferential direction of the check piece, one end of each check rod is fixed on the check piece, the other end of each check rod is a free end, and a movable groove is formed between each check rod and the corresponding check piece;

the surface of the transmission base is provided with a plurality of driving blocks along the circumferential direction, and the driving blocks correspond to the check rods one to one.

8. A gearbox mechanism according to claim 7,

the support sleeve is positioned in the shell and used for assisting in supporting the driving disc, an internal gear is formed on the support sleeve, and the free end of the check rod is positioned on the internal gear.

9. A gearbox mechanism according to claim 8,

the bottom of the support sleeve is arranged between the bottom of the shell and the bottom surface of the shell; and/or the presence of a gas in the gas,

the side wall of the supporting sleeve and the side wall of the shell; and/or the presence of a gas in the gas,

and a sealing ring is arranged between the top of the support sleeve and the driving disc.

10. A VR/AR strap adjustment arrangement comprising a strap and a gear box mechanism as claimed in any one of claims 1 to 9.

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