CN117872605A - Head-mounted equipment - Google Patents

Abstract

The invention provides a head-mounted device, which comprises a C-shaped shell, a C-shaped pad, at least one first interface and at least one air column. Each first interface is communicated to the inside of the C-shaped shell, each air column is arranged on the surface of the C-shaped pad facing one side of the C-shaped shell, and each air column is arranged opposite to a first interface. The gas column comprises a sleeve and a piston, wherein the sleeve is connected to the first connector through a second connector thread, and the piston is connected to the inside of the sleeve in a sliding mode. When the user wears the head-mounted device, the face of the user is attached to the C-shaped pad, pressure is generated on the C-shaped pad, and after the C-shaped pad is subjected to the pressure, the piston of the partial air column slides towards the direction of the C-shaped shell, so that the air pressure inside the C-shaped shell is increased. So that the air pressure born by the pistons of all the air columns and the pressure born by the pistons and the face of the user are balanced, and the pressure born by each part of the face of the user is equal to the air pressure in the C-shaped shell, and the face of the user is uniformly stressed.

Description

Head-mounted equipment

Technical Field

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

Background

In the prior art, the head-mounted intelligent device is usually a head-mounted virtual reality device, which is also called as virtual reality glasses, including VR glasses and AR glasses, and a realistic virtual world with multiple sensory experiences such as three-dimensional vision, touch sense, smell sense and the like is generated by using a computer simulation technology and a sensing technology, so that a person in the virtual world generates an immersive sense.

VR glasses are characterized by the ability of a person to see a stereoscopic scene because both eyes can see east and west independently, the left and right eyes are spaced apart, and there is a slight difference in the viewing angle of the eyes, which can cause a slight displacement in the scene seen by each eye. The difference between the left eye and the right eye is called parallax, and the human brain skillfully fuses the images of the two eyes to generate a stereoscopic vision effect with a sense of space in the brain.

In the prior art, a head-mounted device typically includes a flexible surface pad that is positioned between the face of the user and the host of the head-mounted device. When the user wears the head-mounted device, the face of the user is attached to the flexible face pad, so that the stress area of the face of the user is increased, and the comfort level of the user is increased. However, the face pad of the head-mounted device is difficult to satisfy users of different head types. When the head of the user is too large, the middle part of the face cushion is less extruded by the head of the user, and the generated elastic force is lower. The two ends of the face cushion are more extruded by the head of the user, and the generated elastic force is larger, so that the pressure applied to the head of the user is uneven, and the comfort level of the user is lower. When the head of the user is too small, the middle part of the face cushion is more extruded by the head of the user, and the generated elastic force is larger. But the both ends of face pad are difficult to receive the extrusion of user's head, so the pressure that user's head received is inhomogeneous, and can influence the fixed effect of head-mounted device to it is not enough that head-mounted device and user's head laminate, lead to light to penetrate near the gap department penetrates into user's eye, influence user's use experience.

Disclosure of Invention

The invention provides a head-mounted device, which aims to solve the technical problem that the head-mounted device cannot be suitable for users with different head types due to insufficient fitting between a flexible surface pad of the existing head-mounted device and the face of the user.

In order to solve the above problems, the present invention provides a head-mounted device including a main body case, a headband, a C-shaped case, two or more air columns, an elastic sleeve, and a C-shaped pad. The two ends of the headband are fixedly connected to the two ends of the host shell respectively; the C-shaped shell is fixedly connected to one side of the main machine shell, which faces the headband; a C-shaped cavity is arranged in the C-shaped shell; the surface of the side, far away from the host shell, of the C-shaped shell is provided with more than two first interfaces, is communicated with the C-shaped cavity and is sequentially arranged on a C-shaped curve; one end of each air column is connected to a first interface in a sealing way, and when the other end of each air column is stressed, the length between the two ends of the air column can be shortened; the elastic sleeve is connected to the surface of the side, far away from the main machine shell, of the C-shaped shell, the C-shaped cushion coats all the air columns and the first interfaces, the C-shaped cushion is arranged between the end face of each air column and the elastic sleeve, and the C-shaped cushion is arranged opposite to all the air columns.

Further, each air column comprises a sleeve, a bottom plate and a piston. The first end of the sleeve is provided with a cavity, the second end of the sleeve is provided with a second interface, and the second end of the sleeve is connected to the first interface in a threaded manner; the bottom plate is arranged in the cavity of the sleeve and is close to the second interface, the edge of the bottom plate is connected to the inner side wall of the sleeve in a sealing way, and micropores are formed in the middle of the bottom plate; the piston is slidably inserted into the cavity of the sleeve, with the edge of the piston abutting the inner sidewall of the sleeve.

Further, a gas damping effect is generated when gas passes through the micro-holes; when the piston is moved, the gas damping effect can generate resistance to the piston, the direction of the resistance is opposite to the moving direction of the piston, and the magnitude of the resistance is proportional to the moving speed of the piston; the micropores increase the air pressure balance time, namely, the piston sliding is buffered, and the piston sliding time is prolonged.

Further, the air column further comprises a first sealing ring, wherein the first sealing ring is arranged at the edge of the end part of the second interface and is attached to the edge of the end part of the first interface.

Further, the air column further comprises two annular protruding blocks, each protruding block protrudes out of the inner side wall of the sleeve far away from one end of the second connector, the two annular protruding blocks are arranged at intervals, and an annular groove is formed in the middle of each annular protruding block. The air column further comprises a second sealing ring which is arranged in the annular groove and isolates the inner space of the sleeve from the outside.

Further, the air column further comprises a flexible block, the flexible block is located between the piston and the C-shaped pad, one side of the flexible block is fixedly connected to the C-shaped pad, and the other side of the flexible block is fixedly connected to one end, far away from the sleeve, of the piston.

Further, the air column further comprises a fixing piece, and one end of the fixing piece penetrates through the surface of the flexible block, which faces to one side of the piston, and extends into the flexible block; the other end of the fixing piece penetrates through the surface of the piston, facing one side of the flexible block, and extends into the piston.

Further, the longitudinal section of the C-shaped shell is C-shaped, and the opening of the C-shaped shell is downward; the middle section of C shape casing bottom is equipped with first breach for C shape casing bottom forms two relative tip that set up.

Further, the longitudinal section of the C-shaped pad is C-shaped, and the opening is downward; the middle section of C shape pad bottom is equipped with the second breach, the second breach with first breach sets up relatively.

Further, the C-shaped pad is made of PC material; the elastic sleeve is made of high-density sponge.

An advantage of the present invention is that a head mounted device is provided that includes a C-shaped housing, a C-shaped pad, at least one first interface, and at least one air column. The C-shaped pad is arranged opposite to the C-shaped shell, each first interface is arranged on the surface of the C-shaped shell, facing to one side of the C-shaped pad, each first interface is communicated to the inside of the C-shaped shell, each air column is arranged on the surface of the C-shaped pad, facing to one side of the C-shaped shell, and each air column is arranged opposite to one first interface. The gas column comprises a sleeve, micropores and a piston, wherein the sleeve is connected to the first connector through a second connector thread, the C-shaped shell is communicated with the sleeve through the micropores, and the piston is connected to the inside of the sleeve in a sliding mode. When the user wears the head-mounted device, the face of the user is attached to the C-shaped pad, pressure is generated on the C-shaped pad, and after the C-shaped pad is subjected to the pressure, the piston of part of the air column slides towards the direction of the C-shaped shell. Since the initial air pressure inside the C-shaped housing is the normal atmospheric pressure, the air pressure inside the C-shaped housing increases when the piston of a part of the air column slides toward the direction of the C-shaped housing. These air pressures will act on another portion of the air column that is not under pressure from the user's head, and the piston of these air columns will slide in the direction of the user's head until it conforms to the user's face. And finally, the air pressure born by the pistons of all the air columns is balanced with the pressure born by the faces of the users by the pistons, so that the C-shaped pad is fully attached to the faces of the users, the pressure born by each part of the faces of the users is equal to the air pressure in the C-shaped shell, and the faces of the users are uniformly stressed.

Drawings

Fig. 1 is a schematic diagram of the overall structure of a head-mounted device in the present embodiment;

FIG. 2 is a schematic view showing the overall structure of the C-shaped housing, the air column and the C-shaped pad in the present embodiment;

FIG. 3 is a schematic view showing the overall structure of the C-shaped housing and the first interface in the present embodiment;

FIG. 4 is a schematic diagram showing the overall structure of the air column in the present embodiment;

FIG. 5 is a longitudinal sectional view of the air column in the present embodiment;

fig. 6 is a schematic structural diagram of the head-mounted device in the present embodiment when not under pressure;

fig. 7 is a schematic structural diagram of the head-mounted device in the present embodiment when being subjected to pressure;

FIG. 8 is a longitudinal sectional view of the C-shaped housing and air column in this embodiment;

FIG. 9 is an assembled schematic diagram of a head-mounted device and an interpupillary distance adjustment structure according to an embodiment of the present invention;

FIG. 10 is a schematic diagram of a portion of an interpupillary distance adjustment structure according to an embodiment of the present invention;

FIG. 11 is a schematic diagram of a portion of a pupil distance adjusting structure according to an embodiment of the present invention;

FIG. 12 is a schematic view of the structure of an eyepiece mount plate according to an embodiment of the invention;

FIG. 13 is an exploded view of an interpupillary distance adjustment structure according to an embodiment of the present invention;

fig. 14 is a schematic structural view of a base according to an embodiment of the present invention.

The labels in the figures are as follows:

1 a main machine shell, 2 a head belt, 3 a C-shaped shell, 4 an air column, 5 a C-shaped pad, 6 an elastic sleeve,

31 first interface, 32C-shaped cavity, 41 sleeve, 42 second interface, 43 bottom plate, 44 piston, 45 first seal ring, 46 annular bump, 47 second seal ring, 48 flexible block, 49 fixture,

110 pupil distance adjusting structure, 111 eyepiece mount plate, 112 telescopic device, 113 scissors structure, 114 first shaft pin, 115 second shaft pin, 116 third shaft pin, 117 fourth shaft pin, 118 fifth shaft pin, 119PTFE pad, 120 substrate, 121 eyepiece through hole, 411 air column cavity, 431 micropore,

1111 gap, 1112 first through hole, 1113 first bar hole, 1121 base, 1122 telescopic motor, 1123 telescopic rod, 1124 movable end, 1125 second through hole, 1126 second bar hole, 1127 engagement ring,

1131 first prong, 1132 second prong, 1133 first end, 1134 second end.

Detailed Description

The following description of the preferred embodiments of the present invention, with reference to the accompanying drawings, is provided to illustrate that the invention may be practiced, and these embodiments will fully describe the technical contents of the present invention to those skilled in the art so that the technical contents of the present invention may be more clearly and conveniently understood. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the drawings, like structural elements are referred to by like reference numerals and like structural or functional elements are referred to by like reference numerals throughout. Directional terms, such as upper, lower, front, rear, left, right, inner, outer, upper surface, lower surface, side, top surface, bottom, front end, rear end, etc., are used in the drawings for the purpose of illustrating and explaining the present invention, and are not used to limit the scope of the present invention.

In the drawings, like structural elements are denoted by like reference numerals. When some element is described as being "on" another element, the element may be directly on the other element; there may also be an intermediate member that is placed on the intermediate member and the intermediate member is placed on another member. When an element is referred to as being "mounted to" or "connected to" another element, it can be directly "mounted to" or "connected to" the other element or be indirectly "mounted to" or "connected to" the other element via an intervening element.

As shown in fig. 1, an embodiment of the present invention provides a head-mounted device, in this embodiment, a VR device, and the head-mounted device includes a host housing 1. When a user experiences the head-mounted device, the user needs to wear the head-mounted device and then wear the head-mounted device. The head-mounted device of the present embodiment further includes a headband 2, and both ends of the headband 2 are fixedly connected to both ends of the main body housing 1, respectively. The headband 2 is capable of applying pressure to the head of a user so that the friction of the head-mounted device with the user's head can balance the weight of the head-mounted device itself. Therefore, the head-mounted device can be stably fixed on the head of the user, and the user can experience the head-mounted device well. The head-mounted device in this embodiment includes a pair of eyepiece through holes for mounting the head-mounted device eyepiece, and the eyepiece through holes are provided on the surface of the main body case 1 facing the headband 2. The interior of the main body casing 1 of the head-mounted device further comprises a display screen, which is arranged opposite to the eyepiece. The eyepiece can transmit light rays emitted by the head-mounted device display screen to eyes of a user. The left eye picture and the right eye picture are continuously and alternately displayed on the screen, synchronously matched with the ocular lens and added with the physiological characteristics of human eye persistence of vision, so that a stereoscopic 3D image can be seen.

As shown in fig. 1, 2 and 3, when the user wears the head-mounted device in this embodiment, the head-mounted device in this embodiment is different from the head-mounted device in the related art in that the head-mounted device in this embodiment includes a C-shaped housing 3, a C-shaped pad 5, a plurality of first interfaces 31 and a plurality of air columns 4, instead of the flexible face pad in the related art head-mounted device. The C-shaped shell 3 is fixedly connected to one side of the main machine shell 1 facing the headband 2, the C-shaped shell 3 is annular, and a C-shaped cavity 32 is formed in the C-shaped shell 3. The middle section of the bottom of the C-shaped shell 3 is provided with a notch, so that two opposite end parts are formed at the bottom of the C-shaped shell 3. The C-shaped shell 3 is attached to the edge of the main machine shell 1, and eyes of a user are opposite to the display equipment in the main machine shell 1 through a cavity in the middle of the C-shaped shell 3. At the same time, the chin of the user will pass through the notch in the middle section of the bottom of the C-shaped housing 3, so that the initial shape of the C-shaped housing 3 can be adapted to the head of the user as much as possible. There is a certain space inside the C-shaped housing 3, and a certain air is provided inside the space, and when the head-mounted device is not used, the internal air pressure of the C-shaped housing 3 is standard atmospheric pressure.

The C-shaped pad 5 is arranged on one side of the C-shaped shell 3 far away from the main machine shell 1, and the C-shaped pad 5 is arranged opposite to the C-shaped shell 3. The C-shaped pad 5 is annular, and a notch is formed in the middle of the bottom of the C-shaped pad 5, so that two opposite end parts are formed at the bottom of the C-shaped pad 5. The chin of the user will pass through the notch in the middle of the bottom of the C-pad 5 so that the initial shape of the C-pad 5 will fit as well as possible to the user's head. The C-shaped pad 5 has certain elasticity, when the user wears the head-mounted device, the face of the user is buffered by the C-shaped pad 5, and the comfort level of the face of the user is improved, so that the use experience of the user is improved.

Each first interface 31 is arranged on the surface of the C-shaped shell 3 facing the C-shaped pad 5, the first interface 31 is specifically a cylindrical pipeline with a short length, and threads are arranged on the inner surface of the pipeline, so that other interfaces are convenient to be connected with the first interface 31. Each first port 31 communicates to the inside of the C-shaped housing 3, the C-shaped housing 3 itself being hermetically arranged, it being necessary to ensure that a plurality of first ports 31 are the only channels of the C-shaped housing 3 that can communicate with other components.

As shown in fig. 1, 3, 4, 5, 6, 7 and 8, each air column 4 is disposed on a surface of the C-shaped pad 5 facing the side of the C-shaped housing 3, and each air column 4 is disposed opposite to a first interface 31. The air column 4 comprises a sleeve 41, wherein the sleeve 41 is a main body part of the air column 4, the sleeve 41 is specifically a cylindrical part, and an air column cavity 411 is arranged inside the sleeve 41. The end of the sleeve 41 facing the first interface 31 is provided with a second interface 42, the second interface 42 being embodied as a cylindrical pipe of relatively short length, the outer surface of which pipe is provided with threads, the sleeve 41 being screwed to the first interface 31 via the second interface 42. The air column 4 further comprises a bottom plate 43, the edge of the bottom plate 43 is connected to the inner side wall of the sleeve 41 in a sealing way, and the middle part of the bottom plate is provided with micro holes 431. The micro holes 431 are provided in the middle of the sleeve 41 on the side toward the first port 31 such that the C-shaped housing 3 and the sleeve 41 communicate with each other through the micro holes 431. A gas damping effect is generated when gas passes through the micro holes 431; when the piston 44 is moved, the gas damping effect will create a resistance force on the piston in a direction opposite to the direction of movement of the piston 44, the magnitude of the resistance force being proportional to the speed of movement of the piston 44. The micro holes 431 allow a hysteresis in the exchange of air inside the C-shaped housing 3 with air inside the sleeve 41, prolonging the air pressure balancing process inside the C-shaped housing 3. The resistance provided by the gas damping effect is calculated as follows:

wherein,resistance provided for the gas damping effect; p is the gas pressure within the C-shaped cavity 32; a is the cross-sectional area of the piston 44; c is the mechanical damping coefficient of the micro-pores 431, which is related to the shape and pore size of the micro-pores 431; v is the speed at which the piston 44 moves.

The air column 4 further comprises a piston 44, the piston 44 is arranged at the end of the sleeve 41 far from the first interface 31, the piston 44 is fixedly connected to the surface of the C-shaped pad 5 facing the side of the C-shaped housing 3, and the piston 44 is slidingly connected to the inside of the sleeve 41. When the piston 44 of any one or more of the air columns 4 slides in the direction of the C-shaped housing 3, the volume of the closed space formed by the C-shaped housing 3 and the plurality of sleeves 41 becomes smaller, and the volume of the air therein is unchanged, the air pressure in the closed space formed by the C-shaped housing 3 and the plurality of sleeves 41 increases, and the air pressure acts on the air column 4 in which the other part of the piston 44 is not displaced, and the piston 44 of the air column 4 slides in the direction away from the C-shaped housing 3, and the volume of the closed space formed by the C-shaped housing 3 and the plurality of sleeves 41 increases, and the air pressure in the closed space formed by the C-shaped housing 3 and the plurality of sleeves 41 decreases again to return to the standard atmospheric pressure. The action of the micro holes 431 increases the time for air pressure balance, i.e., it serves as a buffer for the sliding of the piston 44, so that a certain time is required for the sliding of any piston 44.

The air column 4 further comprises a first sealing ring 45, and the first sealing ring 45 is arranged at the edge of the end part of the second interface 42 and is attached to the edge of the end part of the first interface 31. The first sealing ring 45 ensures that the joint of the first interface 31 and the second interface 42 is in a sealing state, so that air in the sealed space formed by the C-shaped shell 3 and the plurality of sleeves 41 is prevented from flowing out of a gap at the joint of the first interface 31 and the second interface 42, and the tightness of the device is improved.

The air column 4 further comprises two annular protruding blocks 46, each annular protruding block 46 protrudes out of the inner side wall of one end of the sleeve 41 far away from the second connector 42, the two annular protruding blocks 46 are arranged at intervals, and an annular groove is formed in the middle of each annular protruding block 46. When the piston 44 slides in a direction away from the C-shaped housing 3, in order to prevent the piston 44 from sliding out of the sleeve 41 and falling off from the sleeve 41, an edge of one end of the piston 44 facing the C-shaped housing 3 protrudes a part around and is fitted to an inner side wall of the sleeve 41. When the piston 44 slides away from the C-shaped housing 3, these protruding portions will be engaged by the annular projection 46, the annular projection 46 acting as a stop. The air column 4 further comprises a second sealing ring 47, the second sealing ring 47 is arranged in the annular groove, the joint of the sleeve 41 and the piston 44 is guaranteed to be in a sealing state, air in the airtight space formed by the C-shaped shell 3 and the plurality of sleeves 41 is prevented from flowing out of a gap at the joint of the sleeve 41 and the piston 44, and the tightness of the device is improved.

The air column 4 further comprises a flexible block 48, the flexible block 48 being located between the piston 44 and the C-pad 5, one side of the flexible block 48 being fixedly connected to the C-pad 5, the other side of the flexible block 48 being fixedly connected to the end of the piston 44 remote from the sleeve 41. The air column 4 further includes a fixing member 49, and one end of the fixing member 49 penetrates through the surface of the flexible block 48 facing the piston 44 and extends into the flexible block 48. The other end of the fixing member 49 penetrates the surface of the piston 44 facing the flexible block 48, and extends into the piston 44. The fixing member 49 fixedly connects the flexible block 48 with the piston 44, preventing the flexible block 48 and the piston 44 from being separated from each other. Because the piston 44 is made of a relatively hard material, a flexible block 48 is further added between the face of the user and the piston 44 in the head-mounted device of the present embodiment to serve as a buffer, so as to improve the comfort of the face of the user and the use experience of the user.

The head-mounted device further comprises an elastic sleeve 6, the elastic sleeve 6 being embodied as a flexible sleeve-like member. The elastic sleeve 6 is sleeved on the surface of the C-shaped pad 5, which is far away from the side of the C-shaped shell 3, and the edge of the elastic sleeve 6, which faces the side of the C-shaped shell 3, is fixedly connected with the edge of the C-shaped shell 3. On the one hand, the air column 4 and the first interface 31 are prevented from being exposed outside the head-mounted device, and the beauty of the head-mounted device is affected. The elastic sleeve 6 is a flexible piece, has certain elasticity and provides a buffering effect for the face of the user again.

As shown in fig. 9-10, the present invention provides a pupil distance adjusting structure 110, which includes two eyepiece mounting plates 111 arranged in parallel, a telescopic device 112 and two or four scissor structures 113, in this embodiment, the pupil distance adjusting structure 110 includes four scissor structures 113, the ends of each two scissor structures 113 are hinged together, each two scissor structures 113 are arranged opposite to the other two scissor structures 113, and each scissor structure 113 can move synchronously, so as to ensure the stability of the structure of the scissor structure 113.

A gap 1111 is formed between the two eyepiece mount plates 111; telescoping device 112 is disposed within gap 1111, telescoping device 112 comprising a telescoping rod 1123, telescoping rod 1123 comprising a movable end 1124; each scissor structure 113 includes a first prong 1131 and a second prong 1132, with a middle portion of the first prong 1131 hinged to a middle portion of the second prong 1132; the first end 1133 of the first prong 1131 of each scissors structure 113 is hinged to the upper end of an eyepiece mounting plate 111, and the second end 1134 of the first prong 1131 is hinged to the movable end 1124 of the telescoping rod 1123; the first end 1133 of the second prong 1132 of one prong structure 113 is hinged to the edge of the eyepiece mounting plate 111, the second end 1134 of the second prong 1132 is hinged to the second prong 1132 of the other prong structure 113, and when the movable end 1124 of the telescopic rod 1123 pushes the second end 1134 of the first prong 1131, the prong structure 113 pushes the eyepiece mounting plate 111 at both ends of the prong structure 113, so that pupil adjustment is realized.

In this embodiment, the first fork 1131 and the second fork 1132 of the scissors structure 113 are made of polymer materials, which is light in weight and has good reliability.

As shown in fig. 12, the tip end of each eyepiece mounting plate 111 at the edge toward one end of the other eyepiece mounting plate 111 is provided with a first through hole 1112; a first bar-shaped hole 1113 is provided at an edge of each eyepiece mounting plate 111 toward one end of the other eyepiece mounting plate 111; the extending direction of the first stripe hole 1113 is parallel to the middle line of the gap 1111; the first through hole 1112 is located on a straight line on which the central axis of the first bar-shaped hole 1113 is located.

As shown in fig. 11 and 13, the interpupillary distance adjustment structure 110 further includes a first shaft pin 114 and a second shaft pin 115.

The first shaft pin 114 is inserted into the first through hole 1112; the first end 1133 of the first tab 1131 of the at least one scissors structure 113 is rotatable about the first pivot pin 114; the second shaft pin 115 is slidably inserted into the first bar hole 1113; the first end 1133 of the second tab 1132 of the at least one scissor structure 113 is rotatable about the second pivot 115.

As also shown in fig. 11, telescoping device 112 includes a bar-shaped base 1121 and a telescoping motor 1122.

The strip-shaped base 1121 is arranged on the middle branching line of the gap 1111 and extends in the direction of the middle branching line; telescoping motor 1122 is fixed to one end of base 1121; the telescopic motor 1122 includes a telescopic rod 1123, the movable end 1124 of the telescopic rod 1123 can move in the middle branching direction of the gap 1111, the bottom surface of the base 1121 is fixed to the middle of the base plate 120 and located between the two eyepiece through holes 121, and when the scissors structure 113 is extended or shortened, the base 1121 is fixed, so as to ensure the stability of the structure of the interpupillary distance adjusting structure 110.

In this embodiment, the telescopic motor 1122 is electrically connected to a host (not shown), the host (not shown) controls pushing or pulling the telescopic rod 1123 by the telescopic motor 1122, a screw (not shown) is connected to a power output shaft (not shown) of the telescopic motor 1122, a nut (not shown) is connected to the bottom of the telescopic rod 1123, and the rotation of the power output shaft (not shown) of the telescopic motor 1122 is converted into the linear motion of the telescopic rod 1123 by pushing the nut (not shown) through the rotation of the screw (not shown), and the pushing and pulling of the telescopic rod 1123 is completed by the clockwise rotation and the counterclockwise rotation of the power output shaft (not shown).

As shown in fig. 14, a second through hole 1125 is formed at one end of the base 1121 away from the telescopic motor 1122; a second bar-shaped hole 1126 is arranged on the base 1121 between the second through hole 1125 and the telescopic motor 1122; the second strip-shaped hole 1126 extends in a direction parallel to the bisecting line of the gap 1111.

As shown in fig. 11 and 13, the interpupillary distance adjustment structure 110 further includes a third shaft pin 116 and a fourth shaft pin 117.

The third shaft pin 116 is inserted into the second through hole 1125; the second end 1134 of the second tab 1132 of the at least one scissor structure 113 is rotatable about the third pivot pin 116; the fourth shaft pin 117 is slidably inserted into the second bar-shaped hole 1126; the second end 1134 of the first tab 1131 of the at least one scissors structure 113 is rotatable about the fourth pivot pin 117.

As shown in fig. 11 and 13, the movable end 1124 of the telescopic rod 1123 is provided with a connection ring 1127, the connection ring 1127 is sleeved on the surface of the fourth shaft pin 117, the telescopic rod 1123 pushes and pulls the fourth shaft pin 117, the included angle between the first fork piece 1131 and the second fork piece 1132 of the scissors structure 113 is changed, and then the length of the scissors structure 113 is changed, so as to realize pupil distance adjustment.

The interpupillary distance adjustment structure 110 further includes a fifth shaft pin 118, where the fifth shaft pin 118 passes through a middle portion of the first tab 1131 and a middle portion of the second tab 1132 of the one or two scissors structures 113, and the second tab 1132 is rotatably connected to the first tab 1131 through the fifth shaft pin 118, so that an included angle between the first tab 1131 and the second tab 1132 can be changed.

In this embodiment, the two ends of the first shaft pin 114, the second shaft pin 115, the third shaft pin 116, the fourth shaft pin 117 and the fifth shaft pin 118 are respectively provided with a PTFE gasket 119, and the end and the middle of each of the first fork 1131 and the second fork 1132 are respectively disposed between the PTFE gaskets 119 at the two ends of the shaft pins, so as to ensure the stability of the structure of the pupil distance adjusting structure 110.

As shown in fig. 1 to 14, when the user needs to wear the head-mounted device, the head-mounted device needs to be sleeved on the head of the user, the face of the user is attached to the C-shaped pad 5, pressure is generated on the C-shaped pad 5, and after the C-shaped pad 5 is subjected to pressure, the piston 44 of the partial air column 4 slides towards the direction of the C-shaped housing 3. The volume of the closed space formed by the C-shaped housing 3 and the plurality of sleeves 41 becomes smaller, and the volume of the air therein is unchanged, so that the air pressure in the closed space formed by the C-shaped housing 3 and the plurality of sleeves 41 increases, and the air pressure acts on the other air column 4 which is not subjected to the head pressure of the user, and the piston 44 of the air column 4 slides in a direction away from the C-shaped housing 3, so that the volume of the closed space formed by the C-shaped housing 3 and the plurality of sleeves 41 increases, and the air pressure in the closed space formed by the C-shaped housing 3 and the plurality of sleeves 41 decreases again because the volume of the air therein is unchanged. This process is continued until all the pistons 44 of the air column 4 are brought into contact with the face of the user through the C-shaped pad 5 and generate an interaction force on the face of the user, and the pressure from the C-shaped pad 5 applied to the face of the user is equal to the air pressure in the closed space formed by the C-shaped housing 3 and the plurality of sleeves 41 through the interaction of the forces. At this time, the C-shaped pad 5 is fully attached to the face of the user, and the face of the user is stressed uniformly, so that the comfort level of the user is improved, and the use experience of the user is enhanced.

When the user wears the head-mounted device according to this embodiment on his/her head, if the interpupillary distance needs to be adjusted, an extension signal of the interpupillary distance adjusting structure 110 is transmitted to the host, and the included angle between the first fork piece 1131 and the second fork piece 1132 of the scissors structure 113 becomes smaller, and at this time, the host controls the telescopic motor 1122 to push the telescopic rod 1123 upwards, the fourth shaft pin 117 at the joint of the second ends 1134 of the two first fork pieces 1131 of the scissors structure 113 moves from the lower end to the upper end of the second bar-shaped hole 1126, and the first end 1133 of the second fork piece 1132 of the scissors structure 113 moves from the lower end to the upper end of the first bar-shaped hole 1113 synchronously in the first bar-shaped hole 1113, so that the scissors structure 113 extends, and the distance between the two eyepieces is increased.

When the pupil distance adjusting structure 110 is shortened, the host controls the telescopic motor 1122 to pull the telescopic rod 1123 downwards, the fourth shaft pin 117 at the joint of the second ends 1134 of the two first fork pieces 1131 of the scissor structure 113 moves from the upper end to the lower end of the second bar hole 1126, the first ends 1133 of the second fork pieces 1132 of the scissor structure 113 synchronously move from the upper end to the lower end of the first bar hole 1113 in the first bar hole 1113, so that the scissor structure 113 is shortened, the distance between the two eyepieces is shortened, and pupil distance adjustment is further realized.

The embodiments of the present invention are an improvement over the prior art in that prior art head-mounted devices are typically provided with a gas filled bladder, and when a user wears such a head-mounted device, the user's head is able to exert pressure on the bladder, causing gas to be displaced within the bladder, to conform to the user's head, and thereby function similarly to the head-mounted device of the embodiments of the present invention. However, the air bag structure has the disadvantage that the deformation is constrained by the surface material itself, i.e. the length of the deformation of the air bag is much smaller than the active length of the air column-piston structure. For example, if the balloon structure is intended to achieve a similar effect as the balloon-piston structure of the present embodiment, the balloon must not be too thin first, or else the user's head will indirectly abut against the rigid shell behind the balloon. Secondly, the surface material of the air bag needs to have enough flexibility and toughness, namely the air bag needs to ensure that the surface material of the air bag needs to have enough ductility under the action of internal air pressure, and the bundling force of the surface material after the surface material is expanded cannot be too large, so that the air bag can generate enough deformation. Finally, the technical effects which the air bag cannot achieve are as follows. First, in combination with the above, the airbag is intended to adequately conform to the head of the user, and the thickness and volume thereof must be greater than those of the air column-piston structure of the embodiment of the present invention. Second, the surface material of the airbag is difficult to recover after long-time deformation and needs to be replaced periodically. Third, the air bag cannot realize the air damping effect in this embodiment, and the shock absorbing effect is poor when the user moves.

An advantage of this embodiment is that a headset is provided that includes a C-shaped housing, a C-shaped pad, at least one first interface, and at least one air column. The C-shaped pad is arranged opposite to the C-shaped shell, each first interface is arranged on the surface of the C-shaped shell, facing to one side of the C-shaped pad, each first interface is communicated to the inside of the C-shaped shell, each air column is arranged on the surface of the C-shaped pad, facing to one side of the C-shaped shell, and each air column is arranged opposite to one first interface. The gas column comprises a sleeve, micropores and a piston, wherein the sleeve is connected to the first connector through a second connector thread, the C-shaped shell is communicated with the sleeve through the micropores, and the piston is connected to the inside of the sleeve in a sliding mode. When the user wears the head-mounted device, the face of the user is attached to the C-shaped pad, pressure is generated on the C-shaped pad, and after the C-shaped pad is subjected to the pressure, the piston of part of the air column slides towards the direction of the C-shaped shell. Since the initial air pressure inside the C-shaped housing is the normal atmospheric pressure, the air pressure inside the C-shaped housing increases when the piston of a part of the air column slides toward the direction of the C-shaped housing. These air pressures will act on another portion of the air column that is not under pressure from the user's head, and the piston of these air columns will slide in the direction of the user's head until it conforms to the user's face. And finally, the air pressure born by the pistons of all the air columns is balanced with the pressure born by the faces of the users by the pistons, so that the C-shaped pad is fully attached to the faces of the users, the pressure born by each part of the faces of the users is equal to the air pressure in the C-shaped shell, and the faces of the users are uniformly stressed.

The foregoing describes in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be made in accordance with the concepts of the invention by one of ordinary skill in the art without undue burden. Therefore, all technical solutions which can be obtained by logic analysis, reasoning or limited experiments based on the prior art by the person skilled in the art according to the inventive concept shall be within the scope of protection defined by the claims.

Claims (10)

1. A head-mounted device, comprising:

a main body case;

the two ends of the headband are fixedly connected to the two ends of the host shell respectively;

a C-shaped housing fixedly connected to a side of the main housing facing the headband; a C-shaped cavity is arranged in the C-shaped shell;

the first ends of the air columns are connected to the surface of one side, far away from the main machine shell, of the C-shaped shell in a sealing way, and the air columns are sequentially arranged on a C-shaped curve; each air column is internally provided with an air column cavity which is communicated with the C-shaped cavity; when the second end of at least one air column is stressed, the length between the two ends of the air column can be shortened, and the lengths between the two ends of other unstressed air columns are lengthened;

an elastic sleeve connected to the surface of the C-shaped shell far from the main shell, wherein the C-shaped cushion layer covers all the air columns, and

the C-shaped pad is arranged between the end face of the air column and the elastic sleeve, and the C-shaped pad is arranged opposite to all the air columns.

2. The head-mounted device of claim 1,

the surface of the C-shaped shell far away from one side of the host shell is provided with more than two first interfaces which are communicated to the C-shaped cavity and are sequentially arranged on a C-shaped curve.

3. The head-mounted device of claim 1,

each of the gas columns comprises:

the first end of the sleeve is provided with the air column cavity, the second end of the sleeve is provided with a second interface, and the sleeve is connected to the first interface through threads;

the bottom plate is arranged in the cavity of the sleeve and is close to the second interface, the edge of the bottom plate is connected to the inner side wall of the sleeve in a sealing way, and micropores are formed in the middle of the bottom plate; and

and the piston is slidably inserted into the cavity of the sleeve, and the edge of the piston is abutted to the inner side wall of the sleeve.

4. The head-mounted device of claim 3,

a gas damping effect is generated when gas passes through the micropores; when the piston is moved, the gas damping effect can generate resistance to the piston, the direction of the resistance is opposite to the moving direction of the piston, and the magnitude of the resistance is proportional to the moving speed of the piston; the micropores increase the air pressure balance time, namely, the piston sliding is buffered, and the piston sliding time is prolonged.

5. The head-mounted device of claim 3,

the gas column further comprises:

the first sealing ring is arranged at the edge of the end part of the second interface and is attached to the edge of the end part of the first interface.

6. The head-mounted device of claim 3,

the gas column further comprises:

two annular convex blocks, each of which protrudes out of the inner side wall of one end of the sleeve, which is far away from the second connector, the two annular convex blocks are arranged at intervals, and an annular groove is formed in the middle of each of the two annular convex blocks; and

the second sealing ring is arranged in the annular groove and isolates the inner space of the sleeve from the outside.

7. The head-mounted device of claim 3,

the gas column further comprises:

the flexible block is positioned between the piston and the C-shaped pad, one side of the flexible block is fixedly connected to the C-shaped pad, and the other side of the flexible block is fixedly connected to one end, far away from the sleeve, of the piston.

8. The head-mounted device of claim 7,

the gas column further comprises:

one end of the fixing piece penetrates through the surface of the flexible block, which faces one side of the piston, and extends into the flexible block; the other end of the fixing piece penetrates through the surface of the piston, facing one side of the flexible block, and extends into the piston.

9. The head-mounted device of claim 1,

the longitudinal section of the C-shaped shell is C-shaped, and the opening of the C-shaped shell is downward;

the middle section of the bottom of the C-shaped shell is provided with a first notch, so that two opposite end parts are formed at the bottom of the C-shaped shell;

the longitudinal section of the C-shaped pad is C-shaped, and the opening of the C-shaped pad faces downwards;

the middle section of C shape pad bottom is equipped with the second breach, with the relative setting of C shape casing's first breach.

10. The head-mounted device of claim 1,

the C-shaped pad is made of PC material;

the elastic sleeve is made of high-density sponge.