Head adaptation device and head display equipment

Abstract

The utility model relates to the technical field of head-mounted equipment, in particular to a head adaptation device and head display equipment. The head fitting device comprises a telescopic band; the two or more ropes are connected to the telescopic belt, the ropes extend in the first direction, and the ropes are distributed in the second direction at intervals; the tightening piece is connected with the ropes so as to tighten or loosen the ropes, and the telescopic belt is driven to stretch and deform in the first direction. According to the head adaptive device, the head is uniformly wrapped by the head adaptive device, so that a balanced pressure distribution area can be formed on the head, and the wearing comfort is improved.

Description

Technical Field

[0001] The present application relates to the field of head-mounted devices, and in particular to a head adaptation device and a head display device. Background Art

[0002] With the rise of the concept of the metaverse, head-mounted devices such as virtual reality (VR) / mixed reality (MR) have received more and more attention. Head-mounted devices are generally fixed with headbands, and the headbands are reliably fixed by adjusting the length of the headband. One of the major problems in the popularization of the current blocking industry is the comfort of human wearing. Head wearing is the main factor affecting human wearing comfort. Specifically, due to the different shapes of the back of the head of different people, the existing headbands cannot match different people, resulting in small pressure area on the head, uneven distribution and other uncomfortable wearing problems. Utility Model Content

[0003] The present application provides a head adaptation device and a head display device, aiming to enable the head adaptation device to evenly wrap the head, so that the head can form a balanced pressure distribution area and improve wearing comfort.

[0004] In a first aspect, the present application provides a head adaptation device, which includes: a telescopic belt; two or more ropes connected to the telescopic belt, the ropes extending along a first direction, and the ropes being spaced apart along a second direction; a tightening member, the tightening member connecting the ropes to tighten or loosen the ropes, thereby driving the telescopic belt to telescope and deform along the first direction.

[0005] The head adaptation device provided by the present application includes a telescopic belt, two or more ropes and a tightening member; the rope is connected to the telescopic belt, and the rope extends along a first direction, so that the rope can drive the telescopic belt to telescope and deform along the first direction; the ropes are spaced apart along the second direction to increase the interaction area between the rope and the telescopic belt, reduce the force on a single rope, and prevent the rope from breaking due to excessive force; the tightening member is connected to the ropes to tighten or loosen the ropes to drive the telescopic belt to telescope and deform along the first direction, thereby adjusting the deformation degree of the telescopic belt at different positions, that is, each rope can be tightened or loosened individually as needed, so that different areas of the telescopic belt can adjust the tightness individually as needed, so that the telescopic belt can fit and wrap the head evenly, so that the head can form a uniform pressure distribution area, thereby improving wearing comfort.

[0006] Optionally, along the direction from the middle to the two ends, the width of at least part of the stretch band gradually decreases, that is, the width of the stretch band in the middle position is larger, and the width at the two ends is smaller, so that the stretch band matches the shape of the head, thereby making the stretch band more easily fit the head.

[0007] Optionally, the stretch band includes an outwardly convex arc-shaped edge, the arc-shaped edge extends along the first direction, and the arc-shaped edges are relatively arranged along the second direction, so that the stretch band can form or approximately form a spherical shape after bending, so that the stretch band can better match the shape of the head, so that the stretch band can be wrapped around the head surface as evenly as possible, reducing the unevenness caused by the deformation of the stretch band.

[0008] Optionally, there are three ropes; the curvature of the ropes close to the curved edge is adapted to the curvature of the curved edge to drive the curved edge to expand and contract, and adjust the tightness of the curved edge so that the curved edge can fit and wrap the head evenly, avoiding obvious warping or gaps at the edge of the telescopic band, thereby making full use of the effective wrapping area of ​​the telescopic band and improving wearing comfort.

[0009] Optionally, the two sides of the telescopic belt along the thickness direction are respectively a first side and a second side, and the telescopic belt includes more than two first telescopic parts; the first telescopic parts are curved structures protruding toward the first side, and the first telescopic parts are arranged along the first direction, and the ropes are sequentially passed through the first telescopic parts. On the one hand, the ropes pass through the first telescopic parts to support them and prevent them from being deformed such as tilting or collapsing; on the other hand, the first telescopic parts can slide along the ropes, so that the deformation degree of each first telescopic part can be evenly distributed.

[0010] Optionally, a side of the first telescopic portion facing the second side is a recessed side, and the telescopic band includes a first limiting portion; the first limiting portion is arranged on the recessed side, and the two ends of the first limiting portion along the first direction are respectively connected to or integrally formed with the first telescopic portion, thereby limiting the curvature or span range of the curved structure, preventing the first telescopic portion from being deformed too much, resulting in the first telescopic portion being difficult to restore its shape.

[0011] Optionally, a gap is provided between adjacent first telescopic parts, and the telescopic belt includes a second telescopic part; the second telescopic part is a curved surface structure protruding toward the second side, and the second telescopic part is provided in the gap, and two adjacent first telescopic parts are connected to each other or formed in one piece through the second telescopic part. When the telescopic belt is telescopically deformed, the span of the curved surface structure of the second telescopic part changes, and the second telescopic part is provided to increase the range of telescopic deformation, so that the telescopic belt can more easily match the user's head.

[0012] Optionally, the retractable belt is provided with a flexible pressure sensor, which extends along the second direction and is used to detect the surface pressure of the retractable belt. By providing the flexible pressure sensor, it is possible to automatically identify whether a certain position of the retractable belt fits the head, and then adjust the tightening degree of the rope corresponding to the position; the flexible pressure sensor extends along the second direction, so that the flexible pressure sensor can simultaneously detect the surface pressure of multiple ropes, and can also detect the surface pressure change trend between two adjacent ropes, so as to more reasonably and efficiently adjust the tightening degree of the rope.

[0013] Optionally, connecting belts are respectively provided at both ends of the telescopic belt, the connecting belts are connected to or integrally formed with the ends of the telescopic belt, and extend in a direction away from the telescopic belt, and the tightening member is provided on the connecting belts. By providing the connecting belts, the telescopic belt is conveniently and stably connected to the host, thereby improving the stability of the connection and preventing the connection between the telescopic belt and the host from becoming loose or falling off during use; the tightening member is provided on the connecting belt, so that the tightening member and the head adapter form a whole, thereby improving the convenience of using the head adapter, and can also provide reliable support and fixing for the tightening member, preventing the tightening member from becoming loose or falling off during use, affecting the tightening degree of the rope.

[0014] Optionally, the connecting belt and the retractable belt are an integrated structure made of cloth. Made of cloth, the retractable belt and the connecting belt have high flexibility, good air permeability and moisture absorption, thereby improving wearing comfort; the integrated structure can not only improve the surface continuity of the head adapter, thereby improving the comfort and appearance of the head adapter, but also increase the overall strength of the head adapter and reduce the risk of breakage of the head adapter.

[0015] Optionally, at least one of the connecting belts is provided with an electrical connector, the tightening member is electrically connected to the electrical connector, and the electrical connector is used to connect to the host. The tightening member can be connected to the host, and the host provides power and signals for the tightening member to operate, so there is no need to set up a separate power supply and controller in the head adapter device, thereby simplifying the structure of the head adapter device.

[0016] A second aspect of the present application provides a head display device, which includes a host and any one of the head adaptation devices provided in the present application, wherein the host is connected to both ends of the head adaptation device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the head adapter provided by this application;

[0018] Figure 2 This is a schematic diagram of the first structure of the head adapter provided by the present application;

[0019] Figure 3 for Figure 2 A schematic diagram of a top view structure;

[0020] Figure 4 A schematic cross-sectional structure diagram of a telescopic belt provided in an embodiment of the present application;

[0021] Figure 5 Another schematic cross-sectional structure diagram of the telescopic belt provided in an embodiment of the present application;

[0022] Figure 6 for Figure 5 A partial enlarged view of the middle A;

[0023] Figure 7 A schematic diagram of another cross-sectional structure of the telescopic belt provided in an embodiment of the present application;

[0024] Figure 8 for Figure 7 A partial enlarged view of point B in the middle;

[0025] Fig. 9 A second structural schematic diagram of the head adapter provided in an embodiment of the present application;

[0026] Fig.10 A third structural schematic diagram of the head adapter provided in an embodiment of the present application;

[0027] Fig.11 for Fig.10 A partial enlarged view of point C in the middle;

[0028] Fig.12 A fourth structural schematic diagram of the head adapter device provided in an embodiment of the present application;

[0029] Fig.13 for Fig.12 Schematic diagram of the explosion structure;

[0030] Fig.14 A schematic diagram of a workflow of a head adaptation device provided in an embodiment of the present application.

[0031] Reference numerals:

[0032] 01-Host;

[0033] 02-Head adapter;

[0034] 1- Telescopic belt;

[0035] 1a-first side;

[0036] 1b - second side;

[0037] 1A-first flexible layer;

[0038] 1B-second flexible layer;

[0039] 1C-channel;

[0040] 11- curved edge;

[0041] 12- first telescopic portion;

[0042] 13- first limiting portion;

[0043] 14- second telescopic portion;

[0044] 15- second limiting portion;

[0045] 2-Rope;

[0046] 3-Tightening parts;

[0047] 4-Connecting belt;

[0048] 5-locking assembly;

[0049] 51-housing;

[0050] 511-through hole;

[0051] 52-elastic buckle;

[0052] 6-Electrical connector;

[0053] 7-Flexible pressure sensor;

[0054] 8-Surface layer. DETAILED DESCRIPTION

[0055] like Figure 1 As shown, an embodiment of the present application provides a head display device, which can be worn on the user's head and transmit images to the user's eyes. The head display device includes a host 01 and a head adapter 02. The host 01 is connected to both ends of the head adapter 02, so that the host 01 and the head adapter 02 form a closed ring structure, so that the head display device can surround the user's head and increase the wearing stability. The host 01 can be an augmented reality (AR) device, a virtual reality (VR) effect device, or a mixed reality (MR) device, etc., as long as it can transmit real images or virtual images to the user's eyes.

[0056] like Figure 2 and Figure 3As shown, the head adaptation device 02 includes a retractable belt 1, a rope 2 and a tightening member 3. The retractable belt 1 is made of cloth, so that the retractable belt 1 has high flexibility, good air permeability and hygroscopicity, thereby improving the comfort of wearing. Of course, the retractable belt 1 can also be made of a single-layer or multi-layer flexible sheet of other materials. The rope 2 is made of fishing line, that is, the rope 2 is a single-strand nylon line, which has good softness, is smooth and not easy to tangle, and is not easy to break, and has high impact resistance. Of course, the rope 2 can also be made of other appropriate silk threads such as cotton thread. The tightening member 3 can be any device that can manually or automatically retract and release the line. For example, the tightening member 3 can include a micro motor and a reel connected to each other.

[0057] The telescopic belt 1 can be telescopically deformed along the first direction X. The rope 2 is connected to the telescopic belt 1, and the rope 2 extends along the first direction X, that is, the extension direction of the rope 2 is consistent with the extension direction of the telescopic belt 1. The tightening member 3 is arranged at the end of the telescopic belt 1, and the tightening member 3 can be fixedly connected to the telescopic belt 1, and can also be connected to the host 01, as long as the tightening member 3 can be fixed. The tightening member 3 is connected to the rope 2 to tighten or loosen the rope 2, and the rope 2 drives the telescopic belt 1 to be telescopically deformed along the first direction X, thereby adjusting the tightness of the telescopic belt 1.

[0058] Specifically, two ends of the rope 2 are a free end and a tightening end, respectively, and the free end and the tightening end are arranged along the first direction X.

[0059] The free end is fixedly connected to the telescopic belt 1, so that the free end can drive the telescopic belt 1 to telescope and deform along the first direction X. The free end can be fixedly connected to the end of the telescopic belt 1, so that the rope 2 can drive the entire telescopic belt 1 to telescope and deform along the first direction X. The free end can also be fixedly connected to the middle of the telescopic belt 1, so that the rope 2 can drive a part of the telescopic belt 1 to telescope and deform along the first direction X. In the embodiments of the present application, only the example of the free end being fixed to the end of the telescopic belt 1 is described in detail.

[0060] The tightening end is connected to the tightening member 3. In this embodiment, the tightening end is fixed inside the tightening member 3 (not shown in the figure). As the tightening member 3 tightens or loosens the rope 2, the free end can approach or move away from the tightening end, thereby adjusting the tightness of the telescopic belt 1. When the tightening member 3 tightens the rope 2, the free end approaches the tightening end under the traction of the tightening member 3, and the telescopic belt 1 shortens and increases the tightening degree. When the tightening member 3 loosens the rope 2, the restraining effect of the free end on the telescopic belt 1 is reduced, and the telescopic belt 1 stretches under the action of its own tension or external force to reduce the tightening degree.

[0061] The rope 2 extends along the first direction X, which means that the rope 2 as a whole has a tendency to extend along the first direction X, and any section of the rope 2 has a component extending along the first direction X. Specifically, any section of the rope 2 can extend in a direction parallel to the first direction X, or in a direction inclined to the first direction X. Any telescopic section can be set in a straight line form, a broken line form, a curved line form, or an arc form, and the rope 2 as a whole can be set in a straight line form, a broken line form, a curved line form, or an arc form, and any one or more segmented combinations thereof.

[0062] Furthermore, the number of ropes 2 is more than two (greater than or equal to two), and each rope 2 is spaced apart along the second direction Y, which refers to the width direction of the stretch belt 1, so as to increase the interaction area between the ropes 2 and the stretch belt 1, reduce the force on a single rope 2, and prevent the rope 2 from being broken due to excessive force. The tightening member 3 connects each rope 2 to tighten or loosen each rope 2, driving the stretch belt 1 to stretch and deform along the first direction X, that is, each rope 2 can be tightened or loosened individually as needed, so that different areas of the stretch belt 1 can adjust the tightness individually as needed, so that the stretch belt 1 can evenly fit and wrap the head (for example, the back of the head), so that the head can form a uniform pressure distribution area, thereby improving wearing comfort.

[0063] Specifically, the tightening member 3 is arranged in one-to-one correspondence with the rope 2, that is, each rope 2 is connected to a tightening member 3. On the one hand, it can ensure that each rope 2 is individually tightened or loosened as needed. On the other hand, it can improve the overall fault resistance of the device. For example, when one of the tightening members 3 fails, it will only affect the rope 2 connected to the tightening member 3, and will not affect the normal adjustment of other ropes 2. It can be understood that at least two ropes 2 can also be connected to the same tightening member 3, and each rope 2 can be individually tightened or loosened by an algorithm program or the like.

[0064] Furthermore, along the direction from the middle to the two ends, the width of at least part of the retractable band 1 gradually decreases, that is, the width of the middle position of the retractable band 1 is larger, and the width of the two ends is smaller, so that the retractable band 1 matches the shape of the head, so that the retractable band 1 can fit the head more easily. In addition, by increasing the width of the middle position, the contact area between the retractable band 1 and the head can be increased to prevent the retractable band 1 from sliding along the head during wearing. By reducing the width of the two ends, the connection between the retractable band 1 and the host 01 can be facilitated.

[0065] Furthermore, the stretch band 1 includes an outwardly convex arc edge 11, the arc edge 11 extends along the first direction X, and the arc edge 11 is relatively arranged along the second direction Y, so that the stretch band 1 can form or approximately form a spherical shape after bending, so that the stretch band 1 can better match the head shape, so that the stretch band 1 can be wrapped around the head surface as evenly as possible, reducing the unevenness caused by the deformation of the stretch band 1. In addition, the arc edge 11 can form a smooth and flat edge curve, prevent the edge of the stretch band 1 from being torn or damaged, and can also improve the overall appearance performance of the stretch band 1.

[0066] In one embodiment, there are two ropes 2, and the two ropes 2 are respectively arranged near the arc edge 11, and the curvature of the two ropes 2 is adapted to the curvature of the arc edge 11, so as to drive the arc edge 11 to stretch and deform, and adjust the tightness of the arc edge 11, so that the arc edge 11 can evenly fit and wrap the head, avoiding obvious warping or gaps at the edge of the elastic band 1, so as to make full use of the effective wrapping area of ​​the elastic band 1 and improve wearing comfort. It can be understood that at least one rope 2 can be further arranged between the two ropes 2.

[0067] In another embodiment, there are three ropes 2, one rope 2 is arranged near each arc edge 11, and one rope 2 is arranged between two arc edges 11. By adding ropes 2 in the middle position, the overall length of the telescopic belt 1 can be adjusted intuitively and conveniently, so that the annular structure formed by the telescopic belt 1 and the host 01 matches the head size, and the pre-fixation of the telescopic belt 1 is achieved. It can also make the middle position of the telescopic belt 1 better fit and wrap the head, avoiding the generation of virtual joints or cavities in the middle position of the telescopic belt 1, thereby making full use of the effective wrapping area of ​​the telescopic belt 1 and improving wearing comfort. It can be understood that at least one rope 2 can be further arranged between the ropes 2 at the edge and the ropes 2 in the middle.

[0068] like Figure 4-Figure 8 As shown, at least a portion of the rope 2 is inserted into the rope belt 2, so that the stretch belt 1 can slide relatively along the rope 2, thereby adjusting the tightness of the stretch belt 1 by the tightening degree of the rope 2. When the rope 2 is tightened, the free end of the rope 2 drives the end of the stretch belt 1 to move inward, thereby shortening the length of the stretch belt 1. When the rope 2 is loosened, the stretch belt 1 moves outward under the action of its own tension or external force, thereby extending the stretch belt 1.

[0069] In one embodiment, reference Figure 4The telescopic belt 1 is arranged in a double-layer structure, and at least a part of the rope 2 is inserted into the interlayer between the double-layer structure. When the length of the telescopic belt 1 is shortened, the surface of the telescopic belt 1 can freely produce wrinkles and other deformations. Specifically, the telescopic belt 1 may include a first flexible layer 1A and a second flexible layer 1B arranged in a stacked manner, and the first flexible layer 1A and the second flexible layer 1B may be connected to each other by appropriate means such as bonding or sewing. A channel 1C for inserting the rope 2 is provided between the first flexible layer 1A and the second flexible layer 1B. The rope 2 is inserted into the channel 1C and can slide relative to the channel 1C. The free end of the rope 2 is fixed to the end of the channel 1C.

[0070] In another embodiment, reference Figure 5-Figure 8 The two sides of the stretchable belt 1 along the thickness direction are respectively a first side 1a and a second side 1b, and the stretchable belt 1 includes a first stretchable portion 12. The first stretchable portion 12 is a curved surface structure convex to the first side 1a, and the side of the curved surface structure facing the first side 1a is a convex side, and the side facing the second side 1b is a concave side, and the curved surface structure has a span along the first direction X. When the stretchable belt 1 is stretched and deformed, the span of the curved surface structure of the first stretchable portion 12 changes. The first stretchable portion 12 is provided to guide the stretching deformation of the stretchable belt 1, so that the stretchable belt 1 can produce as regular a deformation as possible, thereby improving the uniformity of the overall stretchable belt 1, and also improving the uniformity of the pressure distribution.

[0071] Furthermore, the number of the first telescopic parts 12 is more than two, and the first telescopic parts 12 are arranged along the first direction X, and the ropes 2 are sequentially passed through the first telescopic parts 12. On the one hand, the ropes 2 pass through the first telescopic parts 12 to support them and prevent the first telescopic parts 12 from being deformed, such as tilting or collapsing. On the other hand, the first telescopic parts 12 can slide along the ropes 2, so that the deformation degree of each first telescopic part 12 can be evenly distributed.

[0072] Specifically, the first telescopic parts 12 can be closely arranged (refer to Figure 5 and Figure 6 ), that is, there is no gap between two adjacent first telescopic parts 12 to increase the support strength of the first telescopic parts 12 and prevent the first telescopic parts 12 from tilting or collapsing. The first telescopic parts 12 can be arranged at intervals (refer to Figure 7 and Figure 8 ), that is, a gap is provided between two adjacent first telescopic parts 12 so that the first telescopic parts 12 maintain high flexibility and increase wearing comfort.

[0073] Furthermore, the telescopic band 1 includes a first limiting portion 13, which is arranged on the recessed side of the first telescopic portion 12, and the two ends of the first limiting portion 13 along the first direction X are respectively connected to or integrally formed with the first telescopic portion 12, thereby limiting the span range of the curved structure and preventing the first telescopic portion 12 from being deformed too much (for example, the first telescopic portion 12 is fully stretched to form a plane), which makes it difficult to restore the shape of the first telescopic portion 12.

[0074] Furthermore, a gap is provided between two adjacent first telescopic parts 12, and the telescopic belt 1 includes a second limiting part 15, which is provided in the gap. The two adjacent first telescopic parts 12 are interconnected or integrally formed through the second limiting part 15, which can not only play a connecting role between the adjacent first telescopic parts 12, so that the first telescopic parts 12 and the second limiting part 15 form an interconnected whole, but also can limit the telescopic range of the first telescopic part 12.

[0075] Furthermore, a gap is provided between two adjacent first telescopic parts 12, and the telescopic belt 1 further includes a second telescopic part 14. The second telescopic part 14 is a curved surface structure convex toward the second side 1b, the side of the curved surface structure facing the second side 1b is a convex side, and the side facing the first side 1a is a concave side, and the curved surface structure has a span along the first direction X. The second telescopic part 14 is arranged in the gap, and the two adjacent first telescopic parts 12 are interconnected or integrally formed through the second telescopic part 14, so that the first telescopic part 12 and the second telescopic part 14 form a continuous wavy structure. When the telescopic belt 1 is telescopically deformed, the span of the curved surface structure of the second telescopic part 14 changes. By providing the second telescopic part 14, the range of telescopic deformation is increased, so that the telescopic belt 1 can be more easily matched with the user's head.

[0076] Furthermore, the retractable belt 1 is provided with a flexible pressure sensor 7, which is used to detect the surface pressure of the retractable belt 1, so as to automatically identify whether a certain position of the retractable belt 1 is in contact with the head, and then adjust the tightening degree of the rope 2 corresponding to the position. The flexible pressure sensor extends along the second direction Y, so that the flexible pressure sensor 7 can simultaneously detect the surface pressure of multiple ropes 2, and can also detect the surface pressure change trend between two adjacent ropes 2, so as to more reasonably and efficiently adjust the tightening degree of the rope 2. The flexible pressure sensor 7 and the tightening member 3 are interconnected through a processor, which can be a processor provided by the head adapter 02 itself, or a processor provided inside the host 01.

[0077] Furthermore, the first side 1a of the telescopic band 1 is the side of the telescopic band 1 facing the head, and the second side 1b is the side of the telescopic band 1 away from the head. The flexible pressure sensor 7 is arranged on the recessed side of the first telescopic portion 12, which can not only make the flexible pressure sensor 7 as close to the head as possible to improve the accuracy of the flexible pressure sensor 7, but also form a protection for the flexible pressure sensor 7 to prevent the flexible pressure sensor 7 from directly contacting the head and causing the flexible pressure sensor 7 to wear or fall off.

[0078] like Figure 9-13 As shown, connecting belts 4 are respectively provided at both ends of the telescopic belt 1. The connecting belts 4 are connected to or integrally formed with the ends of the telescopic belt 1 and extend in a direction away from the telescopic belt 1. The connecting belts 4 are sheet-like structures that are not easily deformed by telescopic deformation. That is, the connecting belts 4 are not easily deformed by telescopic deformation relative to the telescopic belt 1. By providing the connecting belts 4, the telescopic belt 1 is conveniently and stably connected to the host 01, thereby improving the stability of the connection and preventing the connection between the telescopic belt 1 and the host 01 from loosening or falling off during use.

[0079] Furthermore, the connecting band 4 and the retractable band 1 are an integral structure made of cloth, which can not only improve the surface continuity of the head adaptation device 02, thereby improving the comfort and appearance of the head adaptation device 02, but also increase the overall strength of the head adaptation device 02 and reduce the risk of breakage of the head adaptation device 02.

[0080] Further, the tightening member 3 is arranged on the connecting belt 4 (refer to Fig. 9 ), for example, the tightening member 3 can be fixed to the connecting belt 4 by any appropriate method such as bonding, snapping or sewing. On the one hand, the tightening member 3 and the head adapting device 02 form a whole, thereby improving the convenience of using the head adapting device 02. On the other hand, since the connecting belt 4 has a high stability in its own structure, it can provide reliable support and fixation for the tightening member 3, preventing the tightening member 3 from loosening or falling off during use, thereby affecting the tightening degree of the rope 2.

[0081] Furthermore, the connecting belt 4 may be provided with a locking assembly 5 (refer to Fig.10 and Fig.11 ), the connection belt 4 and the host 01 are locked and unlocked by the locking component 5, the connection is reliable and easy to operate, and the convenience of using the head adaptation device 02 is improved. The locking component 5 includes a shell 51, an elastic buckle 52 and an unlocking piece. A through hole 511 is provided in the center of the shell 51, and the through hole 511 can form a plug-in fit with the host 01. A part of the elastic buckle 52 passes through the shell 51 and extends into the through hole 511, thereby realizing the mutual locking of the connection belt 4 and the host 01. The unlocking piece is connected to the elastic buckle 52, a part of the unlocking piece extends out of the shell 51, and the unlocking piece drives the elastic buckle 52 to retract into the shell 51, thereby realizing the unlocking of the connection belt 4 and the host 01.

[0082] Furthermore, at least one connecting strip 4 is provided with an electrical connector 6 (refer to Fig.11 ), the electrical connector 6 can adopt a magnetic PIN, etc., and the electrical connector 6 is used to connect to the host 01. The above-mentioned tightening member 3 can be electrically connected to the electrical connector 6, so that the tightening member 3 can be interconnected with the host 01, and the host 01 provides power and signals for the action of the tightening member 3. There is no need to set a separate power supply and controller in the head adaptation device 02, which simplifies the structure of the head adaptation device 02. The above-mentioned flexible pressure sensor 7 can be electrically connected to the electrical connector 6, so that the flexible pressure sensor 7 can be interconnected with the processor inside the host 01, and there is no need to set a separate processor in the head adaptation device 02, which simplifies the structure of the head adaptation device 02. Among them, the tightening member 3 and the electrical connector 6, as well as the flexible pressure sensor 7 and the electrical connector 6, can be connected to each other by flexible cables or flexible printed circuit boards (Flexible Printed Circuit, FPC for short).

[0083] Furthermore, the electrical connector 6 can be integrated with the locking assembly 5, which can improve the overall compactness and the convenience of operation. For example, the electrical connector 6 is arranged in the housing 51, and the contact end of the electrical connector 6 passes through the housing 51 and extends into the through hole 511. When the locking assembly 5 and the host 01 are locked with each other, the electrical connector 6 is connected to the circuit of the host 01.

[0084] Furthermore, the surface of the connecting belt 4 may be provided with a surface layer 7 (refer to Fig.12 and Fig.13 ), the surface layer 7 can be fixed to the surface of the connecting belt 4 by any appropriate means such as bonding or sewing, and the above-mentioned tightening member 3 and components such as cables are clamped between the surface layer 7 and the connecting belt 4. By setting the surface layer 7, it is possible to provide protection for the electronic components of the head adapter 02 and form a soft and smooth surface to improve the wearing comfort.

[0085] like Fig.13 As shown, the workflow of a head adaptation device 02 provided in an embodiment of the present application can be referred to as follows: S1. The user wears it. S2. The flexible pressure sensor 7 detects the surface pressure of the retractable belt 1 and transmits the data to the host 01 for analysis. The data includes but is not limited to the pressure condition at position one (corresponding to the first rope 2), the pressure condition at position two (corresponding to the second rope 2) and the pressure condition at position three (corresponding to the third rope 2). S3. The host 01 processes the data and outputs an adjustment signal to the tightening member 3. S4. The tightening member 3 adjusts each rope 2 to tighten according to the adjustment signal. S5. Until the flexible pressure sensor 7 reaches the predetermined pressure, the head wrapping is completed.

Claims

1. A head fitting device, characterized in that: The head fitting device comprises: Retractable straps; Two or more ropes are connected to the retractable belt, the ropes extend along a first direction, and the ropes are spaced apart along a second direction; The tightening member is connected to each of the ropes to tighten or loosen each of the ropes to drive the telescopic belt to stretch and deform along the first direction.

2. The head fitting device according to claim 1, characterized in that: Along the direction from the middle to the two ends, the width of at least part of the telescopic band gradually decreases.

3. The head fitting device according to claim 1, characterized in that: The telescopic band includes an outwardly convex arcuate edge, the arcuate edge extends along the first direction, and the arcuate edges are arranged opposite to each other along the second direction.

4. The head fitting device according to claim 3, characterized in that: There are three ropes; the curvature of the ropes close to the arc-shaped edge is adapted to the curvature of the arc-shaped edge.

5. The head fitting device according to claim 1, characterized in that: The two sides of the stretchable belt along the thickness direction are respectively a first side and a second side, and the stretchable belt includes more than two first stretchable parts; The first telescopic portion is a curved structure convex toward the first side, each of the first telescopic portions is arranged along the first direction, and the rope is sequentially passed through each of the first telescopic portions.

6. The head fitting device according to claim 5, characterized in that: A side of the first telescopic portion facing the second side is a concave side, and the telescopic band includes a first limiting portion; The first limiting portion is arranged on the recessed side, and two ends of the first limiting portion along the first direction are respectively connected to or integrally formed with the first telescopic portion.

7. The head fitting device according to claim 5, characterized in that: There is a gap between adjacent first telescopic parts, and the telescopic belt includes a second telescopic part; The second telescopic portion is a curved structure protruding toward the second side. The second telescopic portion is disposed in the gap. Two adjacent first telescopic portions are connected to each other or formed in one piece via the second telescopic portion.

8. The head fitting device according to any one of claims 1 to 7, characterized in that: The telescopic belt is provided with a flexible pressure sensor, the flexible pressure sensor extends along the second direction, and the flexible pressure sensor is used to detect the surface pressure of the telescopic belt.

9. The head fitting device according to any one of claims 1 to 7, characterized in that: Connecting belts are respectively provided at both ends of the telescopic belt. The connecting belts are connected to or integrally formed with the ends of the telescopic belt and extend in a direction away from the telescopic belt. The tightening member is arranged on the connecting belts.

10. The head fitting device according to claim 9, characterized in that: The connecting belt and the retractable belt are an integrated structure made of cloth.

11. The head fitting device according to claim 9, characterized in that: At least one of the connecting belts is provided with an electrical connector, the tightening member is electrically connected to the electrical connector, and the electrical connector is used to connect to the host.

12. A head mounted display device, characterized in that: It comprises a host and the head adapting device according to any one of claims 1 to 11, wherein the host is connected to two ends of the head adapting device.

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