CN116909032A - Bandage adjustment mechanism and head-mounted display device - Google Patents

Abstract

The application discloses a strap adjusting mechanism and a head-mounted display device. The adjusting assembly comprises an installation carrier and an adjusting knob, the adjusting knob is rotatably arranged on the installation carrier, the adjusting knob rotates along a first direction to drive the two binding bands to be close to each other, and rotates along a second direction opposite to the first direction to drive the two binding bands to be far away from each other; the stop structure is arranged on the mounting carrier and is abutted against the adjusting knob so as to prevent the adjusting knob from rotating along the second direction, and the adjusting knob can also slide along the axial direction of the adjusting knob so as to be separated from the stop structure; the adjusting assembly further comprises a rotating shaft, the rotating shaft is rotatably and slidably arranged on the mounting carrier, the adjusting knob is connected to the rotating shaft, and the rotating shaft is used for driving the two binding bands to be close to and far away from each other. According to the technical scheme, noise generated in the using process of the binding band adjusting mechanism can be avoided.

Description

Bandage adjustment mechanism and head-mounted display device

Technical Field

The application relates to the technical field of head-mounted display equipment, in particular to a binding band adjusting mechanism and head-mounted display equipment applying the same.

Background

Currently, in order to improve the suitability of the head-mounted display device for different users, a strap adjusting mechanism is arranged in more head-mounted display devices so as to perform telescopic adjustment on two straps in the head-mounted display device. The bandage adjusting mechanism comprises a gear, two racks and a ratchet mechanism, wherein the gear can drive the two racks to be close to or far away from each other to realize telescopic adjustment of the two bandages when rotated, and the ratchet mechanism can be used for limiting the gears after rotating in place so that the two bandages are kept in an adjusted state.

However, this type of strap adjustment mechanism finds, during use: when the head-mounted display device is in a wearing state and is pulled, the adjusting knob which drives the gears to rotate is rotated to loosen the two binding bands, and the pawls in the ratchet mechanism are elastically abutted to the ratchet, so that the ratchet can drive elastic deformation of the pawl intervals to collide with the ratchet in the rotating process, and further abnormal sounds of clicking can be generated in the stretching and loosening processes of the two binding bands. That is, the strap adjustment mechanism in this type of head-mounted display device has some noise during use.

Disclosure of Invention

The application mainly aims to provide a binding band adjusting mechanism which is applied to head-mounted display equipment and aims to avoid noise generated in the using process of the binding band adjusting mechanism.

In order to achieve the above object, the strap adjusting mechanism according to the present application includes:

two straps;

the adjusting assembly comprises an installation carrier and an adjusting knob, the adjusting knob is rotatably arranged on the installation carrier, the adjusting knob rotates along a first direction to drive the two binding bands to be close to each other, and rotates along a second direction opposite to the first direction to drive the two binding bands to be far away from each other; and

the stop structure is arranged on the mounting carrier and is abutted against the adjusting knob so as to prevent the adjusting knob from rotating along a second direction, and the adjusting knob can also slide along the axial direction of the adjusting knob so as to be separated from the stop structure;

the adjusting assembly further comprises a rotating shaft, the rotating shaft is rotatably and slidably arranged on the mounting carrier, the adjusting knob is connected to the rotating shaft, and the rotating shaft is used for driving the two binding bands to be close to and far away from each other.

Optionally, the adjusting knob comprises;

the knob body is connected to the rotating shaft; and

the ratchet wheel is connected to the knob body and is coaxially arranged with the knob body;

the stop structure comprises a pawl, one end of the pawl is connected with the mounting carrier, the other end of the pawl is abutted against the ratchet wheel, and the adjusting knob can slide to the ratchet wheel to be separated from the pawl.

Optionally, one end of the pawl away from the ratchet wheel is rotatably arranged on the mounting carrier, and the rotation axis of the pawl and the axis of the ratchet wheel are arranged in parallel;

the stop structure further comprises a first elastic piece, wherein the first elastic piece is arranged between the pawl and the mounting carrier so as to drive the pawl to abut against the ratchet wheel.

Optionally, defining that the pawl has an inward concave cambered surface and an outward convex cambered surface which are arranged back to back in the rotation direction of the pawl, wherein the mounting carrier is provided with a limiting protrusion, and the limiting protrusion is abutted against the inward concave cambered surface;

and/or the number of the stop structures is at least two, and the at least two stop structures are distributed at intervals around the axis of the ratchet wheel;

and/or the ratchet wheel and the stop structure are arranged between the knob body and the mounting carrier.

Optionally, the mounting carrier is provided with a mounting hole, and the rotating shaft is rotatably and slidably arranged in the mounting hole in a penetrating manner;

one end of the adjusting knob is connected to one end of the rotating shaft, and the other end of the rotating shaft is used for driving the two binding bands to be close to and far away from each other.

Optionally, the mounting hole has a first aperture and a second aperture disposed in opposition, the first aperture disposed proximate the adjustment knob and the second aperture disposed proximate the strap;

the rotating shaft is provided with a first stop piece and a second stop piece, the first stop piece is abutted against the wall surface of the mounting carrier, which is provided with the first hole, and the second stop piece and the wall surface of the mounting carrier, which is provided with the second hole, are arranged at opposite intervals;

the adjusting assembly further comprises a second elastic piece, and the second elastic piece is arranged between the second stop piece and the wall surface, provided with a second orifice, of the mounting carrier.

Optionally, the second elastic piece is of an annular structure and is sleeved on the rotating shaft;

and/or, the first stop piece and the rotating shaft are arranged in an integrated structure;

and/or the side peripheral surface of the rotating shaft is provided with a mounting groove, and a part of the second stop piece is embedded in the mounting groove;

and/or the adjusting knob is detachably connected to the rotating shaft.

Optionally, one end of the rotation shaft far away from the adjusting knob is connected with a gear, the binding bands are provided with a plurality of meshing teeth, a plurality of meshing teeth in each binding band are sequentially arranged along the sliding direction of the binding bands, and the meshing teeth in the two binding bands are meshed with two opposite sides of the gear.

Optionally, one of the rotating shaft and the gear is provided with a plug-in post, and the other one of the rotating shaft and the gear is provided with a plug-in hole; the inserting holes are arranged in a non-circular mode, and the inserting columns are inserted into the inserting holes in an adaptive mode;

and/or the mounting carrier is provided with a mounting cavity, and the mounting hole is communicated with the mounting cavity; the adjusting knob is connected with the rotating shaft which extends out of the mounting cavity from the mounting hole, and the gear is connected with the rotating shaft which extends into the mounting cavity from the mounting hole; the mounting carrier is also provided with two through holes communicated with the mounting cavity, one end of each binding belt provided with the meshing teeth is arranged in the mounting cavity, and the other end extends out of the mounting cavity from the through holes.

The application also provides head-mounted display equipment comprising the binding band adjusting mechanism.

When the binding band adjusting mechanism disclosed by the technical scheme of the application is applied to the head-mounted display device, the adjusting knob in the adjusting assembly is rotatably and slidably arranged on the mounting carrier through the rotating shaft, so that the two binding bands can be driven to be close to each other by driving the adjusting knob in the adjusting assembly to rotate along the first direction, and the shrinkage of the head-mounted display device is realized. And then when the two binding bands are telescopically adjusted to be matched with the head of a user to wear and loosen the adjusting knob, the adjusting knob can be abutted and limited through the stop structure so as to stop the resetting rotation of the adjusting knob along the second direction. So make adjust knob can be limited in this state after adjusting, and then make two bandage also can keep in the state after adjusting in place thereupon to realized the spacing fastening of two bandage so that the user carries out stable wearing to wear display device. When the two binding bands are required to be stretched to take down the head-mounted display device, the adjusting knob can be driven to slide along the axial direction of the adjusting knob, so that the adjusting knob is separated from the stop structure, the stop structure is released from the abutting limit of the adjusting knob, and the adjusting knob can rotate along the second direction. At this time, the two binding bands can be automatically stretched under the action of the pulling force applied by the head of the user, so that the head-mounted display device is loosened. And, since the adjustment knob and the stopper structure are in a separated state during the releasing of the head-mounted display device. So when making adjust knob in order to loosen two bandages of extension along the in-process of second direction pivoted, the locking structure can not take place contact collision all the time with adjust knob, just can not extend two bandages and relax the in-process and can send the abnormal sound of "click", thereby avoided bandage adjustment mechanism to produce in the use noise.

Drawings

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

FIG. 1 is a schematic view of an embodiment of a strap adjustment mechanism of the present application;

FIG. 2 is a schematic view of another view of the strap adjustment mechanism of FIG. 1;

FIG. 3 is a schematic view of an exploded view of the strap adjustment mechanism of FIG. 1;

FIG. 4 is another schematic view of an exploded construction of the strap adjustment mechanism of FIG. 3;

FIG. 5 is a schematic view of a portion of the strap adjustment mechanism of FIG. 3;

FIG. 6 is an enlarged partial schematic view of FIG. 5A;

FIG. 7 is another schematic view from another perspective of a partial construction of the strap adjustment mechanism of FIG. 5;

FIG. 8 is a schematic cross-sectional view of the strap adjustment mechanism of FIG. 1;

FIG. 9 is a schematic view of a partial exploded view of the strap adjustment mechanism of FIG. 7;

fig. 10 is another schematic view of a partially exploded view of the strap adjustment mechanism of fig. 9.

Reference numerals illustrate:

the achievement of the objects, functional features and advantages of the present application will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present application are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

In the present application, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout is meant to include three side-by-side schemes, for example, "a and/or B", including a scheme, or B scheme, or a scheme that is satisfied by both a and B. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present application.

Referring to fig. 1 to 8 in combination, the present application proposes a strap adjustment mechanism 100, which is applied to a head-mounted display device, and the head-mounted display device may be a virtual reality device, an augmented reality device, or the like. In one embodiment of the present application, the strap adjustment mechanism 100 includes two straps 10, an adjustment assembly 30, and a stop structure 50. The adjusting assembly 30 comprises a mounting carrier 31 and an adjusting knob 33, the adjusting knob 33 is rotatably arranged on the mounting carrier 31, the adjusting knob 33 can rotate along a first direction to drive the two binding bands 10 to be close to each other, and can rotate along a second direction opposite to the first direction to drive the two binding bands 10 to be far away from each other; the stop structure 50 is arranged on the mounting carrier 31 and is abutted against the adjusting knob 33 so as to stop the adjusting knob 33 from rotating along the second direction, and the adjusting knob 33 can also slide along the axial direction of the adjusting knob 33 so as to be separated from the stop structure 50; the adjusting assembly 30 further comprises a rotating shaft 35, the rotating shaft 35 is rotatably and slidably arranged on the mounting carrier 31, the adjusting knob 33 is connected to the rotating shaft 35, and the rotating shaft 35 is used for driving the two binding bands 10 to approach and separate from each other.

The strap 10, as the name implies, is a strap that binds the head-mounted display device to the head of the user to achieve a more stable wearing of the head-mounted display device by the user. One end of the strap 10 may be used to connect with a host of the head mounted display device, while the other end may be used to connect with the adjustment assembly 30 to drive the two straps 10 to extend or retract via the adjustment assembly 30.

The adjusting assembly 30 can be provided with a mounting position by the mounting carrier 31 to mount the adjusting knob 33 and other parts in the adjusting assembly 30, thereby facilitating the assembling of the adjusting assembly 30 into a whole for use. The mounting carrier 31 may be a plate structure, a shell structure, a column structure, or the like, and the specific structure and shape of the mounting carrier 31 are not limited in the present application. The adjusting knob 33 may be rotatably disposed on the mounting carrier 31 for a user to rotate, and when the adjusting knob rotates along the first direction, the two straps 10 may be driven to approach each other, so as to retract the two straps 10. When rotating along the second direction, the two binding bands 10 can be driven to be away from each other, so that the two binding bands 10 can be stretched. The adjusting knob 33 may have a cylindrical structure to adapt to the rotation track thereof for convenient rotation. The first direction may be counterclockwise and the second direction may be clockwise; of course, the first direction may be clockwise, and the second direction may be counterclockwise, and the specific form of the first direction and the second direction is not limited in the present application.

The stop structure 50 may be used to provide an abutment stop for rotation of the adjustment knob 33 in the second direction without the adjustment knob 33 rotating in the second direction causing an abutment stop. When the adjusting knob 33 is driven to rotate along the first direction to shrink and adjust the two binding bands 10 into place, the adjusting knob 33 can be abutted and limited by the stop structure 50 to be in a state after being adjusted into place, so that the two binding bands 10 are limited and kept in the state after being adjusted into place, and fastening limitation of the two binding bands 10 after being adjusted into place is realized. The stop structure 50 may be a pawl 51 as described below, or may be a telescopic member that is telescopic in a radial direction of the adjusting knob 33, and the telescopic member may be provided with a guiding surface, so that when the adjusting knob 33 rotates in the first direction, the adjusting knob 33 may press the guiding surface on the telescopic member to expand and contract, and further, the adjusting knob 33 may rotate in the first direction beyond the telescopic member. When the adjusting knob 33 rotates along the second direction, the adjusting knob 33 cannot drive the telescopic member to stretch and retract, and is blocked and limited. Therefore, the present application is not limited to the specific form of the stopper structure 50, and may be used to rotate the abutment blocking adjustment knob 33 in the second direction. In addition, after the adjustment knob 33 is slid in the axial direction of the adjustment knob 33, it can be separated from the stopper structure 50. At this time, the stop structure 50 does not cause the abutment blocking effect to the adjustment knob 33 any more, so that the adjustment knob 33 is in the unlocked state and can be rotated in the second direction.

The rotating shaft 35 may be used to rotatably and slidably locate on the mounting carrier 31, and since the volume of the rotating shaft 35 may be smaller than that of the adjusting knob 33, the adjusting knob 33 is indirectly mounted on the mounting carrier 31 through the rotating shaft 35 having a relatively smaller volume, which is also beneficial to improving the convenience of mounting the adjusting knob 33 on the mounting carrier 31. Further, the driving of the two binding bands 10 by the rotating shaft 35 may be performed by engaging the gear 356 directly or indirectly connected to the rotating shaft 35 with the engaging teeth 11 on the two binding bands 10 as described below, or may be performed by connecting one ends of the two connecting ropes to the two binding bands 10 respectively and connecting the other ends to the rotating shaft 35. That is, the form of driving the two straps 10 by the rotation shaft 35 is not limited in the present application, and the two straps 10 can be driven to approach and separate from each other by the rotation shaft 35 when the adjusting knob 33 is rotated.

When the strap adjusting mechanism 100 according to the technical scheme of the application is used, the adjusting knob 33 in the adjusting assembly 30 is rotatably and slidably arranged on the mounting carrier 31 through the rotating shaft 35, so that the two straps 10 can be driven to approach each other by driving the adjusting knob 33 in the adjusting assembly 30 to rotate along the first direction, thereby realizing the shrinkage of the head-mounted display device. After that, when the two straps 10 are telescopically adjusted to fit the head of the user and the adjusting knob 33 is loosened, the adjusting knob 33 can be in abutting limit through the stop structure 50 so as to stop the resetting rotation of the adjusting knob 33 along the second direction. So make adjust knob 33 can be limited in this state after adjusting, and then make two bandage 10 also can keep in the state after adjusting in place thereupon to the spacing fastening of two bandage 10 has been realized so that the user carries out stable wearing to wear display device. When the two straps 10 need to be extended to remove the head-mounted display device, the adjusting knob 33 can be driven to slide along the axial direction of the adjusting knob 33, so that the adjusting knob 33 and the stop structure 50 are separated, and the abutting limit of the adjusting knob 33 by the stop structure 50 is released, so that the adjusting knob 33 can rotate along the second direction. At this time, the two straps 10 are automatically extended by the pulling force applied from the user's head, thereby accomplishing the loosening of the head-mounted display device. Also, since the adjustment knob 33 and the stopper structure 50 are in a separated state during the releasing of the head-mounted display device. This allows the stop structure 50 to always not contact the adjustment knob 33 during rotation of the adjustment knob 33 in the second direction to loosen the two straps 10, i.e., to not rattle during the stretching and loosening of the two straps 10, thereby avoiding noise generated by the strap adjustment mechanism 100 during use.

Referring to fig. 3 and 4 in combination, in an embodiment of the present application, the adjusting knob 33 includes a knob body 331 and a ratchet 332, and the knob body 331 is connected to the rotating shaft 35; the ratchet 332 is connected to the knob body 331 and is coaxially arranged with the knob body 331; the stopper 50 includes a pawl 51, one end of the pawl 51 is connected to the mounting carrier 31, the other end abuts against the ratchet 332, and the adjustment knob 33 is slidable until the ratchet 332 and the pawl 51 are separated.

In this embodiment, the adjusting knob 33 includes the knob body 331 and the ratchet 332, so that the user can conveniently hold the adjusting knob 33 by the knob body 331, thereby facilitating the user to hold the adjusting knob 33. The ratchet 332 may be configured to provide a stop structure 50 for abutment and blocking in the circumferential direction, so that the adjustment knob 33 may be limited by the stop structure 50 for abutment and blocking when rotated to any position in the first direction. In addition, the adjusting knob 33 can also provide the holding position of the user and the abutting position of the stop structure 50 through the knob body 331 and the ratchet 332 respectively, so that the holding operation and the abutting limit of the adjusting knob 33 can be performed on two different components respectively, and the holding operation and the abutting limit cannot be interfered and influenced, and the holding operation of the adjusting knob 33 and the abutting limit of the stop structure 50 can be performed stably and effectively by a user. Of course, it should be noted that, in other embodiments, when the adjusting knob 33 includes only the knob body 331, a plurality of grooves or teeth for limiting the specified structure in an abutting manner may be provided on the side circumferential surface of the knob body 331 along the circumferential direction of the adjusting knob 33. The stop structure 50 is configured to include the pawl 51, so that the pawl 51 preferably imparts a one-way abutment stop to the ratchet 332, i.e., blocks rotation of the adjustment knob 33 in the second direction. Meanwhile, since the structure of the pawl 51 is relatively simple, the structure of the stopper structure 50 can be simplified, so that the convenience in manufacturing the stopper structure 50 can be improved. Wherein the end of the pawl 51 remote from the adjustment knob 33 may be rotatably provided to the mounting carrier 31 as described below. Of course, the end of the pawl 51 remote from the adjustment knob 33 may also be fixedly connected to the mounting carrier 31. At this time, the pawl 51 may have elasticity, so that the adjustment knob 33 may be rotated in the first direction to drive the pawl 51 to be elastically deformed to pull out the pawl 51, thereby enabling the adjustment knob 33 to be rotated in the first direction.

Referring to fig. 3, 5 and 6 in combination, in an embodiment of the present application, an end of the pawl 51 away from the ratchet 332 is rotatably disposed on the mounting carrier 31, and a rotation axis of the pawl 51 and an axis of the ratchet 332 are disposed in parallel; the stop structure 50 further includes a first elastic member 53, where the first elastic member 53 is disposed between the pawl 51 and the mounting carrier 31 to urge the pawl 51 against the ratchet 332.

In this embodiment, the end of the pawl 51 far away from the ratchet 332 is rotatably connected with the mounting carrier 31, so that the adjusting knob 33 can directly abut against and drive the pawl 51 to rotate to shift the pawl 51 in the rotating process of the first direction, so that the adjusting knob 33 passes over the pawl 51. Therefore, the pawl 51 does not need to be elastically deformed to be pulled out, so that the pawl 51 can be prepared by adopting a material with relatively high strength. At this time, the pawl 51 may have a certain strength, so that it is advantageous to improve the stability of the rotation limit of the pawl 51 in the second direction of the adjustment knob 33. The first elastic member 53 is provided, so that the pawl 51 can be automatically and effectively reset after being pulled out by the adjusting knob 33 rotating along the first direction, so that the pawl 51 can be effectively abutted and limited after the adjusting knob 33 rotates in place along the first direction. The first elastic member 53 may be a spring, or may be a spring plate, which is not limited to a specific structural form of the first elastic member 53, and may be used to drive the pawl 51 to limit after being pulled out by the adjusting knob 33 that rotates along the first direction. Of course, when the first elastic member 53 is not provided on the stopper 50, the pawl 51 may be rotatably disposed above the ratchet 332, so that the pawl 51 may be reset by gravity of itself after being pulled out by the adjusting knob 33 rotated in the first direction.

Referring to fig. 5 and fig. 6 in combination, in an embodiment of the present application, the pawl 51 is defined to have a concave arc surface 511 and a convex arc surface 513 opposite to each other in a rotation direction of the pawl 51, and the mounting carrier 31 is provided with a limiting protrusion 311, where the limiting protrusion 311 abuts against the concave arc surface 511.

In this embodiment, by providing the limiting protrusion 311 on the mounting carrier 31, the pawl 51 can only return to the initial state without excessive return even under the action of the large elastic force of the first elastic member 53, so that the following pawl 51 and the pawl 51 of the adjusting knob 33 can perform accurate and effective abutting engagement. The limiting protrusion 311 may be a cylindrical structure, a plate structure, or a block structure, and the specific structural form and shape of the limiting protrusion 311 are not limited in the present application.

Referring to fig. 3, 5 and 6, in an embodiment of the present application, the number of the stop structures 50 is at least two, and the at least two stop structures 50 are spaced around the axis of the ratchet 332.

In the present embodiment, the number of the stop structures 50 is set to at least two, so that the adjustment knob 33 can be abutted and limited by the at least two stop structures 50, which is beneficial to improving the stability of limiting the adjustment knob 33 and improving the stability of limiting the two straps 10 after telescopic adjustment in place, so that the user can wear the head-mounted display device stably. The number of the stop structures 50 may be two or more. Of course, in other embodiments, the number of stop structures 50 may be set to one.

Referring to fig. 3 and 4 in combination, in one embodiment of the present application, the ratchet 332 and the stop structure 50 are disposed between the knob body 331 and the mounting carrier 31.

In the present embodiment, the ratchet 332 and the stop structure 50 are disposed between the knob body 331 and the mounting carrier 31, so that the ratchet 332 and the stop structure 50 can be hidden, thereby facilitating the improvement of the isolation protection of the part of the structure to reduce the possibility of damage to the part by foreign objects. Meanwhile, the attractive appearance of the head-mounted display device can be improved by the arrangement, so that the competitiveness of subsequent products in the market is improved. Of course, it should be noted that, in other embodiments, the ratchet 332 is disposed on a side of the knob body 331 facing away from the mounting carrier 31, and the stop structure 50 is also disposed on a side of the side peripheral surface of the knob body 331, and the specific positions of the ratchet 332 and the stop structure 50 are not limited in the present application.

Referring to fig. 3 and 4 in combination with fig. 7 to 10, in an embodiment of the present application, the mounting carrier 31 is provided with a mounting hole 312, and the rotation shaft 35 is rotatably and slidably disposed through the mounting hole 312; one end of the adjusting knob 33 is connected to one end of the rotating shaft 35, and the other end of the rotating shaft 35 is used for driving the two binding bands 10 to approach and separate from each other.

In this embodiment, mounting holes 312 are provided in the mounting carrier 31 to provide mounting locations to facilitate slidable and rotatable mounting of the adjustment knob 33. Moreover, since the structure of the mounting hole 312 is relatively simple, the convenience of processing and molding the mounting carrier 31 can also be improved. The rotation shaft 35 is provided such that the band 10 and the adjusting knob 33 can be disposed at opposite ends of the mounting hole 312, respectively, so as to improve the compactness of the distribution of the adjusting knob 33 and the band 10 on the mounting carrier 31.

Referring to fig. 7-10 in combination, in one embodiment of the application, the mounting hole 312 has a first aperture 313 and a second aperture 314 disposed in opposition, the first aperture 313 being disposed proximate to the adjustment knob 33 and the second aperture 314 being disposed proximate to the strap 10; the rotation shaft 35 is provided with a first stopper 351 and a second stopper 353, the first stopper 351 is abutted against the wall surface of the mounting carrier 31 provided with the first orifice 313, and the second stopper 353 and the wall surface of the mounting carrier 31 provided with the second orifice 314 are arranged at opposite intervals; the adjustment assembly 30 further comprises a second elastic member 37, the second elastic member 37 being arranged between the second stop 353 and the wall of the mounting carrier 31 provided with the second aperture 314.

In the present embodiment, the sliding of the rotation shaft 35 on the mounting carrier 31 can be restrained by providing the first stopper 351 and the second stopper 353 so that the rotation shaft 35 can be stably mounted on the mounting carrier 31 without being detached from the mounting hole 312. And the second elastic member 37 is provided so as to be elastically deformable. And further, when the adjustment knob 33 is not slid in a direction away from the mounting carrier 31, the adjustment knob 33 can be stably in an initial state. The second elastic member 37 may then be compressed when the adjustment knob 33 is driven to slide in a direction away from the mounting carrier 31 to separate the adjustment knob 33 and the stopper structure 50, thereby achieving slidable movement of the adjustment knob 33 in the axial direction thereof. After the adjusting knob 33 is released, the adjusting knob 33 can be automatically reset under the elastic force of the second elastic member 37. That is, the first stopper 351, the second stopper 353, and the second elastic member 37 are provided so that the adjusting knob 33 can slide along the axial direction thereof, can be stably in an initial state of not sliding, and can be automatically reset after sliding. The first stop member 351 may be an annular structure, an unsealed annular structure, a block structure, or a column structure, and the second stop member 353 may be an annular structure, an unsealed annular structure, a block structure, or a column structure, and the specific structural forms and shapes of the first stop member 351 and the second stop member 353 are not limited in the present application. The second elastic member 37 may be a silicone member, or may be a spring or a leaf spring, which is not limited by the structure of the second elastic member 37.

Referring to fig. 7 to 9, in an embodiment of the application, the second elastic member 37 has a ring structure and is sleeved on the rotating shaft 35.

In the present embodiment, the second elastic member 37 is provided in a ring-shaped structure so that it can be directly fitted over the rotation shaft 35, thereby contributing to improvement of convenience in installation thereof. Meanwhile, the second elastic member 37 may also be guided by the rotation shaft 35 at this time so as to accurately apply elastic force only along the axial direction of the rotation shaft 35, so as to improve the accuracy and stability of the sliding of the rotation shaft 35 and the adjustment knob 33.

In an embodiment of the present application, the first stopper 351 and the rotation shaft 35 are provided in a unitary structure.

In the present embodiment, the first stopper 351 and the rotation shaft 35 are provided as an integral structure, and the connection strength between the two can be enhanced, so that the first stopper 351 performs stable abutment limitation. Meanwhile, the two parts can be integrally formed, so that the subsequent connection assembly of the two parts is omitted.

Referring to fig. 8 and 9 in combination, in an embodiment of the present application, a mounting groove 355 is formed on a side circumferential surface of the rotation shaft 35, and a portion of the second stopper 353 is embedded in the mounting groove 355.

In the present embodiment, the second stopper 353 and the rotation shaft 35 are arranged to be mounted in a clamping manner, so that the rotation shaft 35 can be mounted in the mounting hole 312 through one end far away from the first stopper 351, and then the second stopper 353 is mounted on the rotation shaft 35 in a clamping manner, thereby being beneficial to improving the convenience of assembling the strap adjusting mechanism 100. Meanwhile, the clamping installation is simpler, so that the installation of the second stop piece 353 can be simplified, and the convenience in assembling the strap adjusting mechanism 100 is further improved. Wherein, the mounting groove 355 can be circumferentially arranged along the rotation shaft 35 to improve the convenience of arrangement thereof and facilitate the second stopper 353 to be mounted in any clamping manner in the circumferential direction of the rotation shaft 35. The second stop member 353 may be a snap spring, so that the two ends of the second stop member may be directly sleeved with the snap spring for installation, and then the second stop member may be stably sleeved on the rotating shaft 35 under the action of the elastic force, thereby being beneficial to improving the stability of installation. Meanwhile, the clamp spring is usually a standard part, so that the second stop 353 is conveniently obtained in the market.

Referring to fig. 8, in an embodiment of the present application, the adjusting knob 33 is detachably connected to the rotating shaft 35.

In the present embodiment, the adjustment knob 33 and the rotation shaft 35 are provided in detachable connection so that only a damaged one of the adjustment knob 33 or the rotation shaft 35 can be replaced when the damage occurs. So that the whole is prevented from being replaced, thereby being beneficial to reducing the replacement cost. Wherein, adjust knob 33 and axis of rotation 35 can pass through screw connection, and screw connection has simple reliable advantage to when guaranteeing adjust knob 33 and axis of rotation 35 connection's stability, can simplify the connection structure of both and improve the convenience to both dismouting. In which a screw may pass through the rotation shaft 35 and be inserted into the knob body 331 of the adjustment knob 33 in order to secure the aesthetic appearance of the head-mounted display device. The adjustment knob 33 and the rotation shaft 35 may be connected by a snap connection or a magnetic connection. Alternatively, in some embodiments, the adjustment knob 33 and the rotation shaft 35 may be coupled by adhesive.

Referring to fig. 2, 7 and 8 in combination, in an embodiment of the present application, a gear 356 is connected to an end of the rotation shaft 35 away from the adjusting knob 33, the binding bands 10 are provided with a plurality of engaging teeth 11, the plurality of engaging teeth 11 in each binding band 10 are sequentially arranged along the sliding direction of the binding band 10, and the engaging teeth 11 in the two binding bands 10 are engaged on opposite sides of the gear 356.

In this embodiment, the gear 356 is disposed on the rotation shaft 35, and the engaging teeth 11 are disposed on the binding band 10, so that the two can perform stable engagement transmission, thereby being beneficial to improving the stability of the driving of the binding band 10.

Referring to fig. 8 and 9 in combination, in one embodiment of the present application, one of the rotation shaft 35 and the gear 356 is provided with a plug post 357, and the other is provided with a plug hole 359; the insertion holes 359 are arranged in a non-circular shape, and the insertion posts 357 are fittingly inserted into the insertion holes 359.

In this embodiment, the rotation shaft 35 and the gear 356 are configured to be inserted, so that the connection between them is relatively simple, thereby being beneficial to further improving the convenience of assembling the strap adjusting mechanism 100, and the insertion hole 359 is configured to be non-circular, that is, the insertion hole 359 may be square, triangular or elliptical, as long as the insertion hole is not circular, and the shape of the insertion post 357 is the same as the shape of the insertion hole 359, so as to prevent the two from rotating relatively, and further realize effective driving of the rotation shaft 35 on the gear 356. In order to facilitate the above-described arrangement of the screw for connecting both the rotation shaft 35 and the adjustment knob 33, a plug hole 359 may be provided on the rotation shaft 35 so that the screw may be provided in the plug hole 359 to be inserted into the knob body 331 of the adjustment knob 33 through the rotation shaft 35. Of course, it should be noted that the present application is not limited thereto, and in other embodiments, the rotation shaft 35 and the gear 356 may be connected by a snap, a magnetic connection, a screw connection, an adhesive connection, or the like.

Referring to fig. 2, 3 and 8, in an embodiment of the present application, the mounting carrier 31 is provided with a mounting cavity 315, and the mounting hole 312 is communicated with the mounting cavity 315; the adjusting knob 33 is connected to the rotating shaft 35 extending out of the mounting cavity 315 from the mounting hole 312, and the gear 356 is connected to the rotating shaft 35 extending into the mounting cavity 315 from the mounting hole 312; the mounting carrier 31 is further provided with two through holes 316 communicated with the mounting cavity 315, and one end of each binding belt 10 provided with the engagement teeth 11 is arranged in the mounting cavity 315, and the other end extends out of the mounting cavity 315 from the through holes 316.

In this embodiment, by the installation cavity 315, the end of the binding band 10 provided with the engaged teeth, the end of the rotating shaft 35 provided with the gear 356, and the partial structures such as the gear 356 may be disposed in the installation cavity 315, so that the isolation protection effect on the partial structures is improved. In addition, the attractive appearance of the head-mounted display device can be improved, so that the competitiveness of subsequent products in the market can be improved.

In one embodiment of the present application, the strap adjustment mechanism 100 may be used as follows: when it is desired to retract the strap 10 in order to wear the head mounted display device, the adjustment knob 33 may be actuated to rotate in a first direction. At this time, the adjusting knob 33 may drive the rotation shaft 35 to rotate, and further drive the gear 356 to rotate along the first direction, and the two binding bands 10 may be driven to approach each other to achieve shrinkage by the gear 356. After the strap 10 is shrunk and adjusted in place, the adjusting knob 33 is blocked from rotating along the second direction under the abutting limit of the stop structure 50, so that the limiting of the state of the adjusting knob 33 after rotating and adjusting along the first direction is realized, and further, the limiting fastening of the strap 10 after shrinking and adjusting in place is realized. When it is then necessary to extend both straps 10 to remove the head mounted display device, the adjustment knob 33 may be actuated to slide in a direction away from the mounting carrier 31, allowing the adjustment knob 33 and stop structure 50 to separate. At this time, the abutment limit of the adjusting knob 33 by the stop structure 50 is released, so that the adjusting knob 33 can be rotated in the second direction, and further the two straps 10 can move away from each other under the action of the pulling force applied by the head of the user, thereby realizing the automatic loosening and extending of the two straps 10, so as to take down the head-mounted display device.

The application also provides a head-mounted display device, which comprises a binding band adjusting mechanism 100, wherein the specific structure of the binding band adjusting mechanism 100 refers to the embodiment, and as the head-mounted display device adopts all the technical schemes of all the embodiments, the head-mounted display device at least has all the beneficial effects brought by the technical schemes of the embodiments, and the detailed description is omitted. The head-mounted display device may be a virtual reality device, or may be an augmented reality device.

The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the scope of the application, and all equivalent structural changes made by the description of the present application and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the application.

Claims (10)

1. A strap adjustment mechanism for use with a head mounted display device, comprising:

two straps;

the adjusting assembly comprises an installation carrier and an adjusting knob, the adjusting knob is rotatably arranged on the installation carrier, the adjusting knob rotates along a first direction to drive the two binding bands to be close to each other, and rotates along a second direction opposite to the first direction to drive the two binding bands to be far away from each other; and

the stop structure is arranged on the mounting carrier and is abutted against the adjusting knob so as to prevent the adjusting knob from rotating along a second direction, and the adjusting knob can also slide along the axial direction of the adjusting knob so as to be separated from the stop structure;

the adjusting assembly further comprises a rotating shaft, the rotating shaft is rotatably and slidably arranged on the mounting carrier, the adjusting knob is connected to the rotating shaft, and the rotating shaft is used for driving the two binding bands to be close to and far away from each other.

2. The strap adjustment mechanism of claim 1, wherein the adjustment knob comprises;

the knob body is connected to the rotating shaft; and

the ratchet wheel is connected to the knob body and is coaxially arranged with the knob body;

the stop structure comprises a pawl, one end of the pawl is connected with the mounting carrier, the other end of the pawl is abutted against the ratchet wheel, and the adjusting knob can slide to the ratchet wheel to be separated from the pawl.

3. The strap adjustment mechanism of claim 2 wherein an end of the pawl remote from the ratchet wheel is rotatably disposed on the mounting carrier, the pawl axis of rotation and the ratchet wheel axis being disposed in parallel;

the stop structure further comprises a first elastic piece, wherein the first elastic piece is arranged between the pawl and the mounting carrier so as to drive the pawl to abut against the ratchet wheel.

4. A strap adjustment mechanism according to claim 3, wherein the pawl is defined as having a concave cambered surface and a convex cambered surface disposed opposite to each other in a rotational direction of the pawl, the mounting carrier being provided with a limit projection which abuts against the concave cambered surface;

and/or the number of the stop structures is at least two, and the at least two stop structures are distributed at intervals around the axis of the ratchet wheel;

and/or the ratchet wheel and the stop structure are arranged between the knob body and the mounting carrier.

5. The strap adjustment mechanism according to any one of claims 1 to 4 wherein the mounting carrier is provided with a mounting hole through which the rotating shaft is rotatably and slidably passed;

one end of the adjusting knob is connected to one end of the rotating shaft, and the other end of the rotating shaft is used for driving the two binding bands to be close to and far away from each other.

6. The strap adjustment mechanism of claim 5, wherein the mounting hole has oppositely disposed first and second apertures, the first aperture being disposed adjacent the adjustment knob and the second aperture being disposed adjacent the strap;

the rotating shaft is provided with a first stop piece and a second stop piece, the first stop piece is abutted against the wall surface of the mounting carrier, which is provided with the first hole, and the second stop piece and the wall surface of the mounting carrier, which is provided with the second hole, are arranged at opposite intervals;

the adjusting assembly further comprises a second elastic piece, and the second elastic piece is arranged between the second stop piece and the wall surface, provided with a second orifice, of the mounting carrier.

7. The strap adjustment mechanism of claim 6 wherein said second resilient member is of annular configuration and is sleeved on said rotatable shaft;

and/or, the first stop piece and the rotating shaft are arranged in an integrated structure;

and/or the side peripheral surface of the rotating shaft is provided with a mounting groove, and a part of the second stop piece is embedded in the mounting groove;

and/or the adjusting knob is detachably connected to the rotating shaft.

8. The strap adjustment mechanism of claim 5 wherein a gear is connected to an end of the rotating shaft remote from the adjustment knob, the strap being provided with a plurality of engagement teeth, the plurality of engagement teeth in each strap being disposed in sequence along a sliding direction of the strap, the engagement teeth in both straps engaging opposite sides of the gear.

9. The strap adjustment mechanism of claim 8 wherein one of said rotatable shaft and said gear is provided with a peg and the other of said rotatable shaft and said gear is provided with a peg hole; the inserting holes are arranged in a non-circular mode, and the inserting columns are inserted into the inserting holes in an adaptive mode;

and/or the mounting carrier is provided with a mounting cavity, and the mounting hole is communicated with the mounting cavity; the adjusting knob is connected with the rotating shaft which extends out of the mounting cavity from the mounting hole, and the gear is connected with the rotating shaft which extends into the mounting cavity from the mounting hole; the mounting carrier is also provided with two through holes communicated with the mounting cavity, one end of each binding belt provided with the meshing teeth is arranged in the mounting cavity, and the other end extends out of the mounting cavity from the through holes.

10. A head-mounted display device comprising the strap adjustment mechanism of any one of claims 1 to 9.