A head-mounted device

Abstract

The application belongs to the technical field of head-mounted display, and particularly relates to a head-mounted device, which comprises a host, a headband, a mounting rack fixedly connected with the headband, a sliding connection structure arranged between the mounting rack and a shell of the host, and a fastening structure for fixing the mounting rack on the shell, wherein the fastening structure comprises a fastener slidingly mounted on the shell, an elastic expansion piece for combining the fastener with the mounting rack or the sliding connection structure together, and a pushing piece for pushing the fastener and the mounting rack or the sliding connection structure apart. The mounting rack is fixedly connected with the host through the cooperation of the sliding connection structure, the fastening structure and the shell. When the headband is replaced, the fastener and the mounting rack or the sliding connection structure are pushed apart by the pushing piece, so that the mounting rack and the headband can be separated from the host, thereby solving the problem that the headband and the host of the existing head-mounted device are fixedly connected and cannot be detached, and different headbands can be replaced according to needs, which is very convenient to use.

Description

Technical Field

[0001] This invention belongs to the field of head-mounted display technology, and particularly relates to a head-mounted device. Background Technology

[0002] Currently, head-mounted devices are increasingly appearing in people's daily lives. They mainly consist of a main unit for display and a headband that is fixedly connected to the main unit. When worn, the main unit is fixed to the user's head through the headband.

[0003] Common headbands include simple soft straps and headbands. For example, a lightweight and comfortable soft strap is suitable for static movie watching, while a stable and easily adjustable headband is suitable for dynamic games. However, since the headband is fixedly connected to the host, it cannot be replaced according to the customer's preferences and usage scenarios, which seriously affects the user experience. Summary of the Invention

[0004] The purpose of this invention is to provide a head-mounted device that solves the problem that the headband of existing head-mounted devices is fixedly connected to the main unit and cannot be detached, making it very convenient to use.

[0005] This invention discloses a head-mounted device, which includes a main unit and a headband, and further includes a mounting frame fixedly connected to the headband, a sliding connection structure disposed between the mounting frame and the housing of the main unit, and a fastening structure for fixing the mounting frame to the housing. The fastening structure includes a fastener slidably mounted on the housing, an elastic telescopic member for engaging the fastener with the mounting frame or the sliding connection structure, and a pushing member for pushing the fastener away from the mounting frame or the sliding connection structure.

[0006] As an improvement, the mounting bracket includes a long strip plate portion corresponding to the upper part of the housing, a connecting plate portion connected to both ends of the long strip plate portion and extending in the front-back direction, and a sliding connection structure is disposed between the long strip plate portion and the housing and extends in the front-back direction.

[0007] As an improvement, the pusher is a button that is slidably mounted on the upper part of the housing along the sliding connection structure. A mounting bracket clearance groove is provided on the long strip plate corresponding to the button. The fastener is fixedly connected to the button.

[0008] As an improvement, a recessed area adapted to the shape of the elongated plate portion is provided on the housing, and a portion of the housing located at the front side of the recessed area forms a retaining wall. The sliding connection structure is disposed between the elongated plate portion and the bottom of the recessed area. The sliding connection structure includes a sliding structure fixed on the elongated plate portion and a guide structure correspondingly disposed on the bottom of the recessed area.

[0009] As an improvement, the sliding structure includes a first groove and a second groove spaced apart on the elongated plate portion, with the openings of the first groove and the second groove adjacent to each other, forming a sliding groove between the first groove and the second groove; the guide structure includes a cover plate fixed to the bottom of the recessed area, with the two sides of the cover plate extending in the front-rear direction respectively configured as a first sliding strip adapted to the first groove and a second sliding strip adapted to the second groove.

[0010] As an improvement, a groove is provided at the bottom of the recessed area, and the cover plate is fixed on the bottom of the groove; the button is correspondingly located at the groove, and a cover plate clearance groove is provided on the cover plate corresponding to the button; a gap is provided between the first slide bar, the second slide bar and the bottom of the groove.

[0011] As an improvement, the fastener is a baffle that is fixedly connected to the button, extending from the cavity enclosed by the housing into the groove; the distance between the front side of the baffle and the retaining wall is equal to the distance between the rear side of the sliding structure and the front side of the elongated plate.

[0012] As an improvement, two baffles are provided at intervals, one of which is located between the first slide bar and the bottom of the groove, and the other baffle is located between the second slide bar and the bottom of the groove.

[0013] As an improvement, a limiting structure capable of engaging / disengaging is provided between the housing and the button, an elastic telescopic member for engaging the limiting structure after the button is pressed, and a pushing structure for pushing the limiting structure to disengage is provided on the housing or the elongated plate.

[0014] As an improvement, the pushing structure is disposed on the elongated plate portion; the limiting structure includes a connector that is slidably installed inside the cavity enclosed by the housing along the setting direction of the sliding connection structure, and a limiting groove correspondingly disposed on the button, wherein the connector can extend through the retaining wall to the outside of the housing.

[0015] As an improvement, the pushing structure is a push plate fixed at the front side of the long strip plate, and a through hole is provided on the baffle wall corresponding to the push plate, which communicates with the cavity enclosed by the housing. An extension arm extending to the through hole is provided on the plug-in.

[0016] As an improvement, two push plates are spaced apart on the long strip section, with the two push plates respectively located on both sides of the button, and extension arms are respectively provided on the connector corresponding to the two push plates.

[0017] As an improvement, the headband includes a left support leg and a right support leg respectively mounted on the two connecting plates.

[0018] As an improvement, the headband also includes an arc-shaped bracket installed between the left support leg and the right support leg, a tension adjustment mechanism corresponding to the arc-shaped bracket, and a ring-shaped headband formed between the arc-shaped bracket and the tension adjustment mechanism.

[0019] As an improvement, a left mounting hole is provided on the left support leg, and a right mounting hole is provided on the right support leg. Insertion plates are respectively provided on the outer sides of both ends of the arc-shaped bracket, which are inserted into the left mounting hole and the right mounting hole. The two insertion plates are rotatably connected to the arc-shaped bracket, and the rotating shaft structures of the two insertion plates are coaxially arranged.

[0020] As an improvement, the headband includes a top strap and left and right straps respectively fixedly connected to the two connecting plate portions; a first buckle is fixed to the end of the left strap away from the corresponding connecting plate portion, and a second buckle is fixed to the end of the right strap away from the corresponding connecting plate portion. The left strap passes through the second buckle, and the right strap passes through the first buckle. A loop is formed at the rear end of the top strap, encircling the overlapping portion between the left and right straps. A connecting buckle is correspondingly provided on the elongated plate portion, and the front end of the top strap passes through the connecting buckle. A Velcro structure is provided between the front end of the top strap and the strap surface of the top strap.

[0021] As an improvement, the headband includes a left strap body, a right strap body, and a tension adjustment mechanism connected between the left strap body and the right strap body, respectively fixedly connected to the two connecting plates.

[0022] By adopting the above technical solution, the head-mounted device of the present invention includes a main unit and a headband, and further includes a mounting frame fixedly connected to the headband, a sliding connection structure disposed between the mounting frame and the housing of the main unit, and a fastening structure for fixing the mounting frame to the housing. The fastening structure includes a fastener slidably mounted on the housing, an elastic telescopic member for engaging the fastener with the mounting frame or the sliding connection structure, and a pushing member for separating the fastener from the mounting frame or the sliding connection structure. The headband is fixedly connected to the mounting frame, and the mounting frame is fixedly connected to the main unit through the cooperation of the sliding connection structure, the fastening structure, and the housing, thereby fixing the headband to the main unit. When the headband needs to be replaced, the pushing member pushes the fastener to separate from the mounting frame or the sliding connection structure, allowing the mounting frame and the headband to be separated from the main unit for replacement with different headbands. The head-mounted device of the present invention solves the problem of the non-removable fixed connection between the headband and the main unit in existing head-mounted devices, enabling the replacement of different headbands as needed, making it very convenient to use. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the head-mounted device according to an embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the front view structure of the head-mounted device according to an embodiment of the present invention;

[0025] Figure 3 It is along Figure 2 Schematic diagram of the cross-sectional structure along line AA;

[0026] Figure 4 It is along Figure 2 Schematic diagram of the cross-sectional structure of the middle BB line;

[0027] Figure 5 It is along Figure 2 Schematic diagram of the cross-sectional structure of the middle CC line;

[0028] Figure 6 This is a side view of the head-mounted device according to an embodiment of the present invention;

[0029] Figure 7 It is along Figure 6 Schematic diagram of the cross-sectional structure of the middle DD line;

[0030] Figure 8 This is a three-dimensional structural diagram of the main unit of the head-mounted device according to an embodiment of the present invention;

[0031] Figure 9 This is a three-dimensional structural schematic diagram of the headband of the head-mounted device according to an embodiment of the present invention;

[0032] Figure 10 This is a three-dimensional structural schematic diagram of the headband of the head-mounted device according to an embodiment of the present invention;

[0033] Figure 11 This is a three-dimensional structural schematic diagram of the headband of the head-mounted device according to a third embodiment of the present invention;

[0034] Figure 12 This is a three-dimensional structural schematic diagram of the headband of the head-mounted device according to a fourth embodiment of the present invention;

[0035] Among them, 11. Shell; 12. Recessed area; 121. Retaining wall; 13. Through hole; 14. Insertion hole; 15. Cover plate; 151. First slide bar; 152. Second slide bar; 16. Groove; 21. Left support leg; 22. Right support leg; 23. Left mounting hole; 24. Right mounting hole; 31. Long strip plate; 32. Connecting plate; 33. Mounting bracket clearance groove; 34. First groove; 35. Second groove; 36. Insertion rod; 37. Push plate; 38. Connecting buckle; 41. Button; 411. Button body; 412. Rod body; 42. Baffle; 43. Elastic telescopic component; 44. Mounting plate; 441. Ring sleeve; 45. Limiting groove; 46. Cylinder body; 47. Limiting component; 48. Guide rod; 50. Arc-shaped bracket; 51. Insert plate; 60. Tension adjustment mechanism; 61. Rotary wheel; 71. Left strap; 72. Right strap; 73. First buckle; 74. Second buckle; 75. Top strap; 81. Left belt body; 82. Right belt body; 91. Insert component; 92. Elastic telescopic component; 93. Mounting shaft; 94. Extension arm. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0037] Figures 1 to 12 This is a schematic diagram of the structure of a head-mounted device according to an embodiment of the present invention, wherein, Figure 1 A three-dimensional structural schematic diagram of the head-mounted device of the present invention is shown. Figure 2 A front view structural schematic diagram of a head-mounted device according to an embodiment of the present invention is shown. Figure 3 It shows along Figure 2 Schematic diagram of the cross-sectional structure along line AA. Figure 4 It shows along Figure 2 Schematic diagram of the cross-sectional structure of the middle BB line. Figure 5 It shows along Figure 2 Schematic diagram of the cross-sectional structure of the CC line. Figure 6 A side view of the head-mounted device according to an embodiment of the present invention is shown. Figure 7 It shows along Figure 6 Schematic diagram of the cross-sectional structure of the middle DD line. Figure 8A three-dimensional structural schematic diagram of the main unit of the head-mounted device according to an embodiment of the present invention is shown. Figure 9 A three-dimensional structural schematic diagram of the headband of the head-mounted device according to an embodiment of the present invention is shown. Figure 10 A three-dimensional structural schematic diagram of a second embodiment of the headband of the head-mounted device according to an embodiment of the present invention is shown. Figure 11 A three-dimensional structural schematic diagram of a third embodiment of the headband of the head-mounted device according to an embodiment of the present invention is shown. Figure 12 A perspective structural schematic diagram of a fourth embodiment of the headband of the head-mounted device according to an embodiment of the present invention is shown. For ease of description, only the parts related to the embodiments of the present invention are shown in the figure.

[0038] It should be noted that if the present invention involves directional indications, such as up, down, front, back, left, right, etc., then the directional indications are only used to explain the relative positional relationship between the components in a specific posture. If the specific posture changes, the directional indications will also change accordingly. If the present invention involves descriptions such as "first", "second", etc., then the descriptions such as "first", "second", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly indicating the number of technical features indicated.

[0039] When wearing a head-mounted device, the side of the device closer to the user's head is defined as the rear, and the side farther from the user's head is defined as the front. Figures 1 to 12 It is known that the head-mounted device includes a main unit, a headband for fixing the main unit to the front of the user's face, a mounting frame fixedly connected to the headband, a sliding connection structure disposed between the mounting frame and the housing 11 of the main unit, and a fastening structure for fixing the mounting frame to the housing 11. The fastening structure includes a fastener slidably mounted on the housing 11, an elastic telescopic member 43 for engaging the fastener with the mounting frame or the sliding connection structure, and a pusher for pushing the fastener away from the mounting frame or the sliding connection structure.

[0040] The headband is fixedly connected to the mounting frame. The mounting frame is fixedly connected to the main unit through the cooperation of the sliding connection structure, the fastening structure and the housing 11, thereby fixing the headband to the main unit. When the headband needs to be replaced, the fastener is pushed by the pusher to separate it from the mounting frame or the sliding connection structure. The mounting frame and the headband can be separated from the main unit along the direction of the sliding connection structure so that different headbands can be replaced. The headwear device of this embodiment solves the problem that the headband of the existing headwear device is fixedly connected to the main unit and cannot be disassembled. Different headbands can be replaced as needed, which is very convenient to use.

[0041] In this embodiment of the invention, the mounting bracket includes a long strip plate portion 31 disposed at the upper part of the housing 11, a connecting plate portion 32 respectively connected to both ends of the long strip plate portion 31 and extending in the front-back direction, and a sliding connection structure disposed between the long strip plate portion 31 and the housing 11 and extending in the front-back direction.

[0042] Depend on Figure 3 , Figure 4 , Figure 5 and Figure 7 It can be seen that the pusher is a button 41 that is vertically slidably mounted on the upper part of the housing 11 along the sliding connection structure. A mounting bracket clearance groove 33 is provided on the long strip plate 31 corresponding to the button 41. The fastener is fixedly connected to the button 41.

[0043] Specifically, a cylindrical body 46 is fixed inside the cavity enclosed by the housing 11 at the corresponding position of the button 41. One end of the cylindrical body 46 is open at the end corresponding to the housing 11, and the other end away from the housing 11 is closed. The button 41 includes a button body 411 extending to the outside of the housing 11 and a rod 412 fixedly connected to the button body 411. The rod 412 passes through the housing 11 and is inserted into the cylindrical body 46. Inside the cavity enclosed by the housing 11, a limiting member 47 is provided, which passes through the closed end of the cylindrical body 46 and is fixedly connected to the rod 412. An elastic telescopic member 43 is sleeved on the rod 412 between the button body 411 and the closed end of the cylindrical body 46. Typically, the limiting member 47 is a bolt, with the head of the bolt forming a limit. The limiting member 47 can also be a flat-headed pin, with the flat head of the flat-headed pin forming a limit. The elastic telescopic member 43 is a spring or an elastic sleeve.

[0044] In some other embodiments, the key body 411 may be disposed on the outside of the housing 11, a limiting member may be fixed on the end of the key 41 rod 412 inserted into the cavity formed by the housing 11, and the elastic telescopic member 43 may be sleeved on the part of the rod 412 between the key body 411 and the housing 11.

[0045] In this embodiment of the invention, a recessed area 12 adapted to the shape of the elongated plate portion 31 is provided on the housing 11. A portion of the housing 11 located on the front side of the recessed area 12 forms a baffle 121, and a sliding connection structure is provided between the elongated plate portion 31 and the bottom of the recessed area 12; Figure 4 , Figure 7 , Figure 8 and Figure 9 It can be seen that the sliding connection structure includes a sliding structure fixed on the long strip plate 31 and a guide structure correspondingly provided on the bottom of the recessed area 12.

[0046] Specifically, the sliding structure includes a first groove 34 and a second groove 35 spaced apart on the elongated plate portion 31. The opening of the first groove 34 and the opening of the second groove 35 are adjacent to each other, forming a sliding groove between the first groove 34 and the second groove 35. The guide structure includes a cover plate 15 fixed to the bottom of the recessed area 12. The two sides of the cover plate 15 extending in the front-back direction are respectively configured as a first slide bar 151 adapted to the first groove 34 and a second slide bar 152 adapted to the second groove 35.

[0047] Typically, a groove 16 is provided at the bottom of the recessed area 12, and the cover plate 15 is fixed on the bottom of the groove 16; the button 41 is correspondingly provided at the groove 16, and a cover plate clearance groove is provided on the cover plate 15 corresponding to the button 41, and a gap is provided between the first slide bar 151, the second slide bar 152 and the bottom of the groove 16.

[0048] To facilitate installation, a plug-in rod 36 extending in the front-rear direction is provided on the front side of the long strip plate 31 corresponding to the two connecting plate sections 32, and a plug-in hole 14 is provided on the housing 11 corresponding to the two plug-in rods 36, which can play a guiding and auxiliary connection role.

[0049] Depend on Figure 4 It can be seen that the fastener is a baffle 42 fixedly connected to the button 41, extending from the cavity enclosed by the housing 11 into the recessed area 12; the distance between the front side of the baffle 42 and the retaining wall 121 is equal to the distance between the rear side of the sliding structure and the front side of the elongated plate portion 31. After the headband is installed, the sliding structure and the guide structure are slidably connected together, and the baffle 42 is located on the side of the sliding structure away from the retaining wall 121, so that the mounting bracket and the main unit can be fixedly connected by the limiting effect of the retaining wall 121 and the baffle 42.

[0050] Typically, there are two baffles 42 spaced apart. One baffle 42 is located between the first slide bar 151 and the bottom of the groove 16, and the other baffle 42 is located between the second slide bar 152 and the bottom of the groove 16.

[0051] Depend on Figure 7 As can be seen, in order to facilitate installation, mounting plates 44 are respectively provided between the two baffles 42 and the button 41. Typically, guide rods 48 are provided on opposite sides of the rod body 412 and fixed to the key body 411 of the button 41. A ring 441 is provided on the mounting plate 44 and fitted on the guide rod 48. The ring 441 is slidably connected to the housing 11, which can make the installation of the baffles 42 more convenient, and can also play a guiding role when the button 41 is pressed to prevent the button 41 from deflecting.

[0052] In this embodiment of the invention, a limiting structure capable of joining / separating is provided between the housing 11 and the button 41, and an elastic telescopic member 92 is provided for joining the limiting structure together after the button 41 is pressed. A pushing structure for pushing the limiting structure to separate is provided on the housing 11 or the long strip plate 31.

[0053] Depend on Figure 3 , Figure 4 and Figure 5 It is known that the pushing structure is set on the long strip plate 31; the limiting structure includes a plug 91 that is slidably installed inside the cavity enclosed by the housing 11 along the setting direction of the sliding connection structure, and a limiting groove 45 correspondingly set on the button 41. The plug 91 can extend through the baffle 121 to the outside of the housing 11, specifically, it extends into the recessed area 12. After the button 41 is pressed, the limiting groove 45 on the button 41 is aligned with the plug 91. Under the elastic force of the elastic telescopic member 92, the plug 91 is inserted into the limiting groove 45, which can keep the button 41 in the pressed state; at the same time as the button 41 is pressed, the baffle 42 retracts into the cavity enclosed by the housing 11 along with the button 41, so that the headband can be separated from the main unit along the direction of the sliding connection structure. Since the baffle 42 retracts into the cavity enclosed by the housing 11, it will not hinder the installation of the newly replaced headband, and the installation is very convenient.

[0054] Specifically, a mounting shaft 93 extending along the direction of the sliding connection structure is fixed inside the cavity enclosed by the housing 11. The plug-in 91 is slidably mounted on the mounting shaft 93. The elastic telescopic member 92 is fitted on the mounting shaft 93 between the plug-in 91 and the corresponding side of the housing 11. Typically, the elastic telescopic member 92 is a spring or an elastic sleeve.

[0055] To facilitate the sliding of the connector 91, the pushing structure is a push plate 37 fixed to the front side of the long strip plate 31. A through hole 13 is provided on the baffle 121 corresponding to the push plate 37, communicating with the cavity enclosed by the housing 11. An extension arm 94 extending to the through hole 13 is provided on the connector 91. When a new headband is installed, the push plate 37 passes through the through hole 13 and contacts the extension arm 94. The extension arm 94 pushes the connector 91 to separate from the limiting groove 45. Under the elastic force of the elastic telescopic member 43, the button 41 resets and drives the baffle 42 to extend to the outside of the housing 11 and insert into the recessed area 12, realizing the fixed connection between the mounting bracket and the main unit.

[0056] Typically, a push plate 37 is provided on each side of the mounting bracket clearance groove 33, with the two push plates 37 located on opposite sides of the button 41; an extension arm 94 is provided on the connector 91 corresponding to each of the two push plates 37. The corresponding through hole 13 is set as an elongated hole, through which the connector 91 extends into the recessed area 12. When installing the headband, the two push plates 37 respectively pass through the elongated hole and contact the corresponding extension arm 94, which can make the sliding of the connector 91 more stable.

[0057] In an embodiment of the present invention, Figures 1 to 9 The structure of a first embodiment of the headband is shown. The headband includes a left support leg 21 and a right support leg 22 respectively mounted on two connecting plate portions 32 of the mounting frame. When wearing the headband, the headband is worn by clamping between the left support leg 21 and the right support leg 22, supporting the left support leg 21 with the user's left ear, and supporting the right support leg 22 with the user's right ear.

[0058] Specifically, the left support leg 21 and the right support leg 22 are fixedly connected or hinged to the connecting plate part 32 on the corresponding side, respectively.

[0059] In an embodiment of the present invention, Figure 10 The structure of a second embodiment of the headband is shown, which is substantially the same as the first embodiment, except that:

[0060] The headband also includes an arc-shaped bracket 50 installed between the left support leg 21 and the right support leg 22, and a tension adjustment mechanism 60 corresponding to the arc-shaped bracket 50, forming a ring-shaped headband between the arc-shaped bracket 50 and the tension adjustment mechanism 60.

[0061] Specifically, the tension adjustment mechanism 60 includes an arc-shaped outer shell, a gear rotatably mounted in the cavity enclosed by the outer shell, and a rotating wheel 61 rotatably mounted on the outer shell for driving the gear to rotate. A left rack and a right rack, which are inserted into the cavity enclosed by the outer shell, are respectively fixed at both ends of the arc-shaped bracket 50. The left rack and the right rack mesh with the upper and lower sides of the gear respectively. A one-way locking structure that can be engaged / disengaged is provided between the rotating wheel 61 and the outer shell. The one-way locking structure is a known technology, and its specific structure will not be described in detail here.

[0062] For ease of installation, a left mounting hole 23 is provided on the left support leg 21, and a right mounting hole 24 is provided on the right support leg 22. Insertion plates 51 are provided on the outer sides of both ends of the arc-shaped bracket 50, which are inserted into the left mounting hole 23 and the right mounting hole 24 respectively. The two insertion plates 51 are rotatably connected to the arc-shaped bracket 50, and the rotating shaft structure of the two insertion plates 51 is coaxially arranged.

[0063] In an embodiment of the present invention, Figure 11The structure of a third embodiment of the headband is shown. The headband includes a top strap 75 and left straps 71 and right straps 72, which are respectively fixedly connected to two connecting plate portions 32 of the mounting bracket. A first buckle 73 is fixed to the end of the left strap 71 away from the corresponding connecting plate portion 32, and a second buckle 74 is fixed to the end of the right strap 72 away from the corresponding connecting plate portion 32. The left strap 71 passes through the second buckle 74, and the right strap 72 passes through the first buckle 73. A [missing information - likely a design element] is formed at the rear end of the top strap 75. The loop strap is arranged in a loop on the intersecting part between the left strap 71 and the right strap 72. A corresponding connecting buckle 38 is provided on the long strip plate 31. The front end of the top strap 75 passes through the connecting buckle 38. A Velcro structure is provided between the front end of the top strap 75 and the strap surface of the top strap 75. The tightness between the left strap 71 and the right strap 72 can be adjusted by sliding the first buckle 73 and the second buckle 74. The tightness of the top strap 75 can be adjusted by adjusting the position of the front end of the top strap 75.

[0064] Specifically, the connecting buckle 38 is an elongated through hole provided on the long strip plate portion 31. Of course, the connecting buckle 38 can also be set as a rectangular ring fixed to the long strip plate portion 31.

[0065] Typically, the top strap 75, left strap 71, and right strap 72 can be made of woven straps, soft plastic straps, etc.

[0066] In an embodiment of the present invention, Figure 12 The structure of a fourth embodiment of the headband is shown. The headband includes a left strap body 81 and a right strap body 82, which are respectively fixedly connected to two connecting plate portions 32 of the mounting bracket, and a tension adjustment mechanism 60 connected between the left strap body 81 and the right strap body 82.

[0067] Specifically, the tension adjustment mechanism 60 includes an arc-shaped outer shell, a gear rotatably mounted within the cavity enclosed by the outer shell, and a rotating wheel 61 rotatably mounted on the outer shell for driving the gear to rotate. A left rack is provided at the end of the left belt body 81 and inserted into the cavity enclosed by the outer shell, and a right rack is provided at the end of the right belt body 82 and inserted into the cavity enclosed by the outer shell. The left and right racks mesh with the upper and lower sides of the gear, respectively. A one-way locking structure that can be engaged / disengaged is provided between the rotating wheel 61 and the outer shell. This one-way locking structure is a known technology, and its specific structure will not be described in detail here.

[0068] The above description is merely some embodiments of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A head-mounted device, comprising a main unit and a headband, characterized in that, It also includes a mounting bracket fixedly connected to the headband, a sliding connection structure disposed between the mounting bracket and the housing of the main unit, and a fastening structure for fixing the mounting bracket to the housing. The fastening structure includes a fastener slidably mounted on the housing, an elastic telescopic member for engaging the fastener with the mounting bracket or the sliding connection structure, and a pushing member for separating the fastener from the mounting bracket or the sliding connection structure. The mounting bracket includes a long strip plate portion corresponding to the upper part of the housing, and connecting plate portions respectively connected to both ends of the long strip plate portion and extending in the front-rear direction. The sliding connection structure is disposed... The elongated plate extends between the elongated plate and the housing in the front-rear direction; the pusher is a button that is slidably mounted on the upper part of the housing along the vertical direction of the sliding connection structure; a mounting bracket clearance groove is provided on the elongated plate corresponding to the button; the fastener is fixedly connected to the button; a recessed area adapted to the shape of the elongated plate is provided on the housing; a portion of the housing located on the front side of the recessed area forms a retaining wall; the sliding connection structure is disposed between the elongated plate and the bottom of the recessed area; the sliding connection structure includes a sliding structure fixed on the elongated plate and a guide structure correspondingly disposed on the bottom of the recessed area. A limiting structure capable of engagement / disengagement is provided between the housing and the button, and an elastic telescopic member for engaging the limiting structure after the button is pressed. A pushing structure for pushing the limiting structure apart is provided on the housing or the elongated plate portion, and the pushing structure is disposed on the elongated plate portion. The limiting structure includes a connector slidably installed inside the cavity enclosed by the housing along the setting direction of the sliding connection structure, and a limiting groove correspondingly disposed on the button. The connector can extend through the baffle wall to the outside of the housing. The pushing structure is a push plate fixed at the front side of the elongated plate portion. A through hole communicating with the cavity enclosed by the housing is provided on the baffle wall corresponding to the push plate. An extension arm extending to the through hole is provided on the connector.

2. The head-mounted device according to claim 1, characterized in that, The sliding structure includes a first groove and a second groove spaced apart on the elongated plate portion. The openings of the first groove and the second groove are adjacent to each other, forming a sliding groove between the first groove and the second groove. The guiding structure includes a cover plate fixed to the bottom of the recessed area. The two sides of the cover plate extending in the front-back direction are respectively configured as a first sliding strip adapted to the first groove and a second sliding strip adapted to the second groove.

3. The head-mounted device according to claim 2, characterized in that, A groove is provided at the bottom of the recessed area, and the cover plate is fixed on the bottom of the groove; the button is correspondingly disposed in the groove, and a cover plate clearance groove is provided on the cover plate corresponding to the button; a gap is provided between the first slide bar, the second slide bar and the bottom of the groove.

4. The head-mounted device according to claim 3, characterized in that, The fastener is a baffle that is fixedly connected to the button, extending from the cavity enclosed by the housing into the groove; the distance between the front side of the baffle and the retaining wall is equal to the distance between the rear side of the sliding structure and the front side of the elongated plate.

5. The head-mounted device according to claim 4, characterized in that, Two baffles are provided at intervals, one of which is located between the first slide bar and the bottom of the groove, and the other baffle is located between the second slide bar and the bottom of the groove.

6. The head-mounted device according to claim 1, characterized in that, Two push plates are spaced apart on the long strip section, and the two push plates are respectively located on both sides of the button. An extension arm is provided on the connector corresponding to the two push plates.

7. The head-mounted device according to any one of claims 1 to 6, characterized in that, The headband includes a left support leg and a right support leg respectively mounted on the two connecting plates.

8. The head-mounted device according to claim 7, characterized in that, The headband also includes an arc-shaped bracket installed between the left support leg and the right support leg, and a tension adjustment mechanism corresponding to the arc-shaped bracket, forming a ring-shaped headband between the arc-shaped bracket and the tension adjustment mechanism.

9. The head-mounted device according to claim 8, characterized in that, The left support leg has a left mounting hole, and the right support leg has a right mounting hole. The outer sides of both ends of the arc-shaped bracket are respectively provided with plug-in plates that are inserted into the left mounting hole and the right mounting hole. The two plug-in plates are rotatably connected to the arc-shaped bracket, and the rotating shaft structures of the two plug-in plates are coaxially arranged.

10. The head-mounted device according to any one of claims 1 to 6, characterized in that, The headband includes a top strap and left and right straps that are fixedly connected to the two connecting plates respectively. A first buckle is fixed to the end of the left strap away from the corresponding connecting plate, and a second buckle is fixed to the end of the right strap away from the corresponding connecting plate. The left strap passes through the second buckle, and the right strap passes through the first buckle. A loop is formed at the rear end of the top strap, which is wrapped around the overlapping portion between the left and right straps. A connecting buckle is provided on the elongated plate, and the front end of the top strap passes through the connecting buckle. A Velcro structure is provided between the front end of the top strap and the strap surface of the top strap.

11. The head-mounted device according to any one of claims 1 to 6, characterized in that, The headband includes a left strap body, a right strap body, and a tension adjustment mechanism connected between the left strap body and the right strap body, respectively fixedly connected to the two connecting plates.

Images