A head-mounted device

Abstract

The present invention belongs to the field of head-mounted display technology, and more particularly, relates to a head-mounted device comprising a main unit and a head support. Rotating arms are rotatably mounted on opposite sides of the head support, the two arms being arranged parallel to each other and slidably connected to the main unit. Locking structures are provided between the head support and the two arms. Sliding drive mechanisms are rotatably mounted on opposite sides of the head support for driving the main unit to slide along the two arms. The two sliding drive mechanisms are coaxially arranged with the corresponding arms. An upward flip-toggle structure and a downward flip-toggle structure capable of engaging and disengaging are provided between the sliding drive mechanisms and the arms on the same side. When the upward flip-toggle structure is engaged, the downward flip-toggle structure is in a disengaged state, and when the downward flip-toggle structure is engaged, the upward flip-toggle structure is in a disengaged state. Since a gap exists between the face mask and the user's face after the main unit slides away from the user's face, the problem of the face mask rubbing against the user's face when the main unit is flipped is resolved.

Description

Technical Field

[0001] The present invention belongs to the technical field of head-mounted display, and in particular relates to a head-mounted device. Background Art

[0002] With the development of technology, head-mounted devices (AR and VR) are increasingly appearing in our daily lives. While wearing a head-mounted device, we often need to interact with the outside world, such as typing on a keyboard in the office or checking mobile phone messages in daily life. Currently, users can interact with the outside world by flipping the main body of the head-mounted device upwards.

[0003] When wearing a head-mounted device, the face mask installed on the host fits closely to the user's face. When the host is turned over, the face mask will rub against the user's face, causing discomfort when wearing. Summary of the Invention

[0004] The first object of the present invention is to provide a head-mounted device, which aims to solve the problem of the face mask rubbing against the user's face when the host is turned over.

[0005] The present invention discloses a head-mounted device, which includes a main unit and a head support. Rotating arms are rotatably installed at opposite sides of the head support, the two rotating arms are arranged in parallel and are slidably connected to the main unit, and locking structures are respectively provided between the head support and the two rotating arms. Sliding drive mechanisms for driving the main unit to slide along the two rotating arms are rotatably installed at opposite sides of the head support, the two sliding drive mechanisms are coaxially arranged with the rotating arms on corresponding sides, and an upward flip-toggle structure and a downward flip-toggle structure that can be engaged / separated are provided between the sliding drive mechanisms and the rotating arms on the same side. When the upward flip-toggle structure is engaged, the downward flip-toggle structure is in a separated state, and when the downward flip-toggle structure is engaged, the upward flip-toggle structure is in a separated state.

[0006] As an improvement, sliding arms are fixed on both sides of the main unit, and the two sliding arms are slidably connected to the rotating arms on the corresponding sides, and the sliding drive mechanism is arranged between the head support and the sliding arms.

[0007] As an improvement, the sliding drive mechanism includes a cam rotatably mounted on the head support, the cam is coaxially arranged with the rotating arm on the same side, an arc-shaped connecting groove is provided on the cam, the distance between the first end of the connecting groove and the rotating axis of the cam is smaller than the distance between the second end of the connecting groove and the rotating axis of the cam; and also includes a shift rod fixed on the end of the sliding arm away from the main unit, the shift rod being inserted into the connecting groove.

[0008] As an improvement, a guide groove is provided on a side of the sliding arm close to the rotating arm, a sliding block inserted into the guide groove is fixed on the corresponding side of the rotating arm, and the two rotating arms are arranged between the two sliding arms.

[0009] As an improvement, the flip-up toggle structure includes a cam pushing structure arranged on the cam, which is corresponding to a rotating arm pushing structure arranged on the rotating arm, and the cam pushing structure is arranged on a side of the rotating arm pushing structure away from the host.

[0010] As an improvement, the cam pushing structure is an upward-flipping limiting rib arranged on the side of the cam close to the rotating arm, and the upward-flipping limiting rib extends radially along the rotating shaft of the cam; the rotating arm pushing structure is a rotating arm limiting rib arranged on the side of the rotating arm close to the cam, and the rotating arm limiting rib extends radially along the rotating shaft of the rotating arm.

[0011] As an improvement, the downward-flipping toggle structure includes a one-way internal gear ring arranged on the rotating arm and coaxially with the rotating axis of the rotating arm, a mounting seat arranged in the one-way internal gear ring and fixedly connected to the rotating axis of the cam, a first pushing structure and a second pushing structure arranged on the mounting seat at intervals, and a pawl rotatably mounted on the mounting seat between the first pushing structure and the second pushing structure, the rotating axis of the pawl being parallel to the rotating axis of the cam and a spacing being provided between the rotating axis of the pawl and the rotating axis of the cam, and the pawl being slidably mounted on the mounting seat along the setting direction of its rotating axis; and also including an elastic member for pushing the pawl to slide toward the side close to the mounting seat, and a third pushing structure arranged on the head support for pushing the pawl to slide toward the side away from the mounting seat.

[0012] As an improvement, the first pushing structure is arranged on a side away from the host, and the second pushing structure is arranged on a side close to the host.

[0013] As an improvement, a recessed area is provided on the mounting seat, a first side wall is provided on the side of the recessed area away from the main unit, and a second side wall is provided on the side of the recessed area close to the main unit, the first side wall forms the first pushing structure, the second side wall forms the second pushing structure, and the pawl is rotatably installed on the bottom surface of the recessed area between the first side wall and the second side wall.

[0014] As an improvement, a mounting shaft is fixed on a side of the mounting seat away from the recessed area, the cam is fixed on the mounting shaft, and the mounting shaft is rotatably mounted on the head support to form the cam and the rotating shaft of the rotating arm.

[0015] As an improvement, the pawl includes a pawl body and a plate body fixedly connected to the end of the pawl body, a right angle is provided between the pawl body and the plate body, a mounting hole is provided at the connection between the pawl body and the plate body, a bolt passing through the mounting hole is fixed on the bottom surface of the recessed area, and the elastic member is sleeved on the rod body portion between the head of the bolt and the pawl.

[0016] As an improvement, connecting plates are respectively provided on opposite sides of the head support, and the rotating arm and the sliding drive mechanism are respectively rotatably mounted on the connecting plates on the corresponding sides.

[0017] Due to the adoption of the above-mentioned technical solution, the head-mounted device of the present invention includes a main unit and a head support, and rotating arms are respectively rotatably installed at opposite sides of the head support. The two rotating arms are arranged in parallel and are slidably connected to the main unit. Locking structures are respectively provided between the head support and the two rotating arms, and sliding drive mechanisms for driving the main unit to slide along the two rotating arms are respectively rotatably installed at opposite sides of the head support. The two sliding drive mechanisms are respectively coaxially arranged with the rotating arms on the corresponding sides, and an upward flip-toggle structure and a downward flip-toggle structure that can be engaged / separated are provided between the sliding drive mechanism and the rotating arms on the same side. When the upward flip-toggle structure is engaged, the downward flip-toggle structure is in a separated state, and when the downward flip-toggle structure is engaged, the upward flip-toggle structure is in a separated state.

[0018] After wearing the head-mounted device, when it is necessary to interact with the outside world, the two sliding drive mechanisms drive the main unit to slide to the side away from the user's face, so that there is a distance between the face-fitting mask on the main unit and the user's face, and then the two sliding drive mechanisms are rotated at the same time to combine the two sliding drive mechanisms with the upward flip-toggle structure between the corresponding side rotating arms. Continuing to rotate the two sliding drive mechanisms can drive the two rotating arms to rotate upward, and the main unit is flipped upward by the upward rotation of the two rotating arms, and the rotating arms are limited to the rotated position by the locking structure. When it is necessary to flip the main unit downward back to the front side of the user's face, the two sliding drive mechanisms are rotated in the opposite direction to combine the upward flip-toggle structure between the two sliding drive mechanisms and the corresponding side rotating arms. The two sliding drive mechanisms are rotated in the opposite direction, and the two rotating arms are driven to rotate downward by continuing to rotate the two sliding drive mechanisms in the opposite direction. The main unit is driven to flip downward back to the front side of the user's face by the downward rotation of the two rotating arms, and the rotating arms are limited to the rotated position by the locking structure. Since there is a gap between the face-fitting mask and the user's face after the main unit slides to the side away from the user's face, the face-fitting mask will not contact the user's face when the main unit is flipped up or down, so that the face-fitting mask will not rub against the user's face when the main unit is flipped over, thereby solving the problem of the face-fitting mask rubbing against the user's face when the main unit is flipped over. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1is a schematic diagram of the three-dimensional structure of a head-mounted device according to an embodiment of the present invention;

[0020] Figure 2 is a side structural diagram of the connection structure of a head mounted device according to an embodiment of the present invention;

[0021] Figure 3 is a schematic diagram of the three-dimensional structure of the connection structure of the head mounted device according to an embodiment of the present invention;

[0022] Figure 4 is a schematic diagram of the three-dimensional structure of a mounting base of a head mounted device according to an embodiment of the present invention;

[0023] Figure 5 is a schematic diagram of the side view structure of the head mounted device when adjusting the viewing distance according to an embodiment of the present invention;

[0024] Figure 6 is a side view schematic diagram of the connection structure of the head mounted device when adjusting the viewing distance according to an embodiment of the present invention;

[0025] Figure 7 is a schematic side view of the head mounted device according to an embodiment of the present invention after being flipped over;

[0026] Figure 8 is a schematic structural diagram of the connection structure of the head mounted device after being flipped over according to an embodiment of the present invention;

[0027] Among them, 10, main machine; 11, sliding arm; 12, guide groove; 13, shift rod; 20, head support; 21, connecting plate; 22, bump; 30, rotating arm; 31, one-way inner ring gear; 40, cam; 41, connecting groove; 42, upward limit rib; 50, mounting seat; 51, recessed area; 52, first side wall; 53, second side wall; 54, mounting shaft; 60, pawl; 70, elastic member; 80, spring plunger; 90, bolt. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present 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 only used to explain the present invention and are not intended to limit the present invention.

[0029] It should be noted that if the present invention involves directional indications (such as up, down, front, back, etc.), such directional indications are only used to explain the relative positional relationship between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly; if the present invention involves descriptions of "first", "second", etc., such descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features.

[0030] Figures 1 to 8 : is a schematic structural diagram of a head-mounted device according to an embodiment of the present invention, wherein: Figure 1 shows a schematic diagram of the three-dimensional structure of a head-mounted device according to an embodiment of the present invention, Figure 2 A schematic side view of the connection structure of a head mounted device according to an embodiment of the present invention is shown. Figure 3 A schematic diagram showing a three-dimensional structure of the connection structure of a head mounted device according to an embodiment of the present invention is shown. Figure 4 FIG2 shows a schematic diagram of the three-dimensional structure of the mounting base of the head mounted device according to an embodiment of the present invention. Figure 5 A schematic diagram of the side view structure of the head mounted device when adjusting the viewing distance according to an embodiment of the present invention is shown. Figure 6 A schematic side view of the connection structure of the head mounted device when adjusting the viewing distance according to an embodiment of the present invention is shown. Figure 7 FIG2 shows a schematic diagram of a side view of the head mounted device after flipping over according to an embodiment of the present invention. Figure 8 The figure shows a schematic diagram of the connection structure of the head-mounted device after being turned over according to an embodiment of the present invention. For ease of description, only the parts related to the embodiment of the present invention are shown in the figure.

[0031] When wearing a head-mounted device, the side of the head-mounted device that is closer to the user's face is the back side, and the side that is farther away from the user's face is the front side. Figures 1 to 8 It can be seen that the head-mounted device of the embodiment of the present invention includes a host 10 and a head support 20 for wearing the host 10 on the user's head. Rotating arms 30 are respectively rotatably installed at opposite sides of the head support 20. The two rotating arms 30 are arranged in parallel and are slidably connected to the host 10. Locking structures are respectively provided between the head support 20 and the two rotating arms 30. Two sliding drive mechanisms for driving the host 10 to slide along the two rotating arms 30 are respectively rotatably installed at opposite sides of the head support 20. The two sliding drive mechanisms are respectively coaxially arranged with the rotating arms 30 on the corresponding sides. An upward flip-toggle structure that can be engaged / separated and a downward flip-toggle structure that can be engaged / separated are respectively provided between the two sliding drive mechanisms and the rotating arms 30 on the same side. When the upward flip-toggle structure is engaged, the downward flip-toggle structure is in a separated state. When the downward flip-toggle structure is engaged, the upward flip-toggle structure is in a separated state.

[0032] After wearing the head-mounted device, when it is necessary to interact with the outside world, the two sliding drive mechanisms drive the main unit 10 to slide to the side away from the user's face, so that there is a distance between the face-contact mask on the main unit 10 and the user's face, and then the two sliding drive mechanisms are rotated at the same time, so that the two sliding drive mechanisms and the upward flip-toggle structure between the corresponding side rotating arms 30 are combined together, and the two sliding drive mechanisms are continued to rotate to drive the two rotating arms 30 to rotate upward, and the main unit 10 is flipped upward by the upward rotation of the two rotating arms 30, and the rotating arms 30 are limited to the rotated position by the locking structure. When it is necessary to flip the main unit 10 downward back to the front side of the user's face, the two sliding drive mechanisms are rotated in the opposite direction to separate the upward flip-toggle structure between the two sliding drive mechanisms and the corresponding side rotating arms 30. The two sliding drive mechanisms are combined with the downward flipping and toggling structure between the corresponding side rotating arms 30, and the two sliding drive mechanisms are rotated in the opposite direction. Continuing to rotate the two sliding drive mechanisms in the opposite direction can drive the two rotating arms 30 to rotate downward, and the main unit 10 is driven to flip downward back to the front side of the user's face by the downward rotation of the two rotating arms 30, and the rotating arms 30 are limited to the rotated position by the locking structure. Since there is a gap between the face mask and the user's face after the main unit 10 slides to the side away from the user's face, the face mask will not contact the user's face when the main unit 10 flips up or down, avoiding the face mask rubbing against the user's face when the main unit 10 flips over. The head-mounted device according to the embodiment of the present invention solves the problem of the face mask rubbing against the user's face when the main unit is flipped over.

[0033] Specifically, since the upward flip toggle structure can be engaged / separated and the downward flip toggle structure can be engaged / separated, when the upward flip toggle structure and the downward flip toggle structure are in a separated state, the two sliding drive mechanisms can drive the host 10 to slide along the two rotating arms 30, thereby adjusting the distance between the host 10 and the user's face and realizing visual distance adjustment.

[0034] In an embodiment of the present invention, in order to facilitate the sliding connection between the rotating arm 30 and the main unit 10, sliding arms 11 are fixed on both sides of the main unit 10, and the two sliding arms 11 are respectively slidably connected to the rotating arms 30 on the corresponding sides, and the sliding drive mechanism is arranged between the head support 20 and the sliding arms 11.

[0035] Depend on Figure 1 、 Figure 5 and Figure 7 As can be seen, the sliding drive mechanism includes a cam 40 rotatably mounted on the head support 20. This cam 40 is coaxially arranged with the rotating arm 30 on the same side. An arc-shaped connecting slot 41 is provided on the cam 40. The distance between the first end of the connecting slot 41 and the rotating axis of the cam 40 is smaller than the distance between the second end of the connecting slot 41 and the rotating axis of the cam 40. The mechanism also includes a lever 13 fixed to the end of the sliding arm 11 away from the main unit 10 and inserted into the connecting slot 41. Specifically, the connecting slot 41 is an elongated hole that extends through the entire cam 40 in the thickness direction.

[0036] In other embodiments, the sliding drive mechanism may also be configured as a slide rail and slider assembly, wherein one end of the slide rail of the slide rail and slider assembly is rotatably mounted on the head support 20, and the rotation axis of the slide rail is coaxially arranged with the rotation axis of the rotating arm 30. The end of the slide arm 11 away from the host 10 is fixedly connected to the slider of the slide rail and slider assembly. During use, the position of the host 10 can be adjusted by pushing or pulling the slide rail of the slider assembly to slide.

[0037] Typically, a guide groove 12 is provided on the side of the slide arm 11 near the pivot arm 30. A slider (not shown) is fixed to the corresponding side of the pivot arm 30 and inserted into the guide groove 12. The two pivot arms 30 are disposed between the two slide arms 11, facilitating the assembly of the main unit 10 and the head support 20 via the two slide arms 11, the two pivot arms 30, and the two sliding drive mechanisms. Of course, a sliding connection can also be achieved using a slide rail and slider assembly.

[0038] In this embodiment of the present invention, the upward flipping mechanism includes a cam push structure provided on the cam 40, which corresponds to the rotating arm push structure provided on the rotating arm 30. The cam push structure is provided on the side of the rotating arm push structure away from the main unit 10. When the cam 40 is rotated, the cam push structure rotates synchronously with the cam 40. As the cam push structure rotates toward the rotating arm push structure, the rotating cam 40 can push the main unit 10 to slide, thereby achieving viewing distance adjustment. After the cam push structure and the rotating arm push structure are in contact, the thrust applied to the rotating arm push structure can push the rotating arm 30 to rotate, thereby achieving upward flipping of the main unit 10.

[0039] Specifically, the cam pushing structure is an upward-flipping limiting rib 42 arranged on the side of the cam 40 close to the rotating arm 30, and the upward-flipping limiting rib 42 extends radially along the rotating axis of the cam 40; the rotating arm pushing structure is a rotating arm limiting rib arranged on the side of the rotating arm 30 close to the cam 40, and the rotating arm limiting rib extends radially along the rotating axis of the rotating arm 30.

[0040] Typically, the upward-turning limiting rib 42 and the cam 40 are connected to form an integral structure.

[0041] In other embodiments, the flip-up toggle structure can also be configured as follows, including a connecting rod fixed to the cam 40 and parallel to the rotation axis of the cam 40, and an arc-shaped slide groove provided on the rotating arm 30, wherein the arc-shaped slide groove is coaxial with the rotation axis of the cam 40 and the rotation axis of the rotating arm 30, and the connecting rod is inserted into the arc-shaped slide groove. When the cam 40 is rotated, the connecting rod rotates synchronously with the cam 40 and can slide along the arc-shaped slide groove. When the connecting rod is at a position between the two ends of the arc-shaped slide groove, when the two cams 40 on both sides are rotated simultaneously, the main unit 10 can be pushed to slide, thereby achieving line of sight adjustment. When the connecting rod slides to the end of the arc-shaped slide groove close to the main unit 10, the cam 40 is continued to be rotated, and the rotating arm 30 can be rotated by the connecting rod, thereby achieving flipping of the main unit 10.

[0042] In the embodiment of the present invention, Figure 2 、 Figure 3 and Figure 4 It can be seen that the downward flipping and toggling structure includes a one-way inner gear ring 31 arranged on the rotating arm 30 and coaxially with the rotating axis of the rotating arm 30, a mounting base 50 arranged in the one-way inner gear ring 31 and fixedly connected to the rotating axis of the cam 40, a first pushing structure and a second pushing structure arranged at intervals on the mounting base, and a pawl 60 rotatably installed on the mounting base 50 between the first pushing structure and the second pushing structure, the rotating axis of the pawl 60 is parallel to the rotating axis of the cam 40 and a spacing is provided between the rotating axis of the pawl 60 and the rotating axis of the cam 40, and the pawl 60 is slidably installed on the mounting base 50 along the setting direction of its rotating axis; it also includes an elastic member 70 for pushing the pawl 60 to slide toward the side close to the mounting base 50, and a third pushing structure arranged on the head support 20 for pushing the pawl 60 to slide toward the side away from the mounting base 50.

[0043] Specifically, the first pushing structure is arranged on a side away from the host 10 , and the second pushing structure is arranged on a side close to the host 10 .

[0044] In the initial state, if Figure 2 、 Figure 3As shown, the pawl 60 corresponds to the third pushing structure. Under the limitation of the third pushing structure, the pawl 60 is located on the side away from the mounting seat 50, and the pawl 60 is in a separated state from the one-way inner gear ring 31, and a gap is provided between the first pushing structure and the pawl 60; when the cam 40 is rotated, the mounting seat 50 rotates synchronously, and the first pushing structure rotates toward the side close to the pawl 60. When the first pushing structure does not contact the pawl 60, when the cam 40 is rotated, the cam 40 drives the main unit 10 to slide through the connecting groove 41, the shift rod 13 and the sliding arm 11 to achieve sight distance adjustment; continue to rotate the cam 40, and the upward flip-up toggle structure between the cam 40 and the rotating arm 30 can drive the rotating arm 30 to rotate, so that the main unit 10 flips up. While the main unit 10 flips up, the first pushing structure continues to rotate toward the side close to the pawl 60 until the first pushing structure contacts the pawl 60 and pushes the pawl 60 to rotate. After the pawl 60 rotates, it disengages from the third pushing structure. Figure 5 and Figure 6 As shown, under the elastic force of the elastic member 70, the pawl 60 slides toward the side close to the mounting seat 50 and is stuck between two adjacent single teeth of the one-way inner gear ring 31; the cam 40 is continuously rotated, and the arm 30, the mounting seat 50 and the pawl 60 rotate synchronously with it until the main body 10 is flipped up to the top, as shown in FIG. Figure 7 and Figure 8 When the main unit 10 needs to be flipped downward to the front side of the user's face, the cam 40 is rotated in the opposite direction, and the upward flip-toggle structure between the cam 40 and the rotating arm 30 is separated. At the same time, the second pushing structure rotates toward the side close to the pawl 60. Since there is a gap between the rotating shaft of the pawl 60 and the rotating shaft of the cam 40, and the pawl 60 is stuck between two adjacent single teeth of the one-way inner gear ring 31, the second pushing structure, the pawl 60 and the one-way inner gear ring 31 can cooperate to push the rotating arm 30 to rotate downward, driving the main unit 10 to flip downward. When the main unit 10 is flipped downward to the front side of the user's face, the cam 40 is continued to be rotated, and the pawl 60 continues to rotate and rotates to the third pushing structure. Under the limitation of the third pushing structure, the pawl 60 slides toward the side away from the mounting seat 50, and the pawl 60 is separated from the one-way inner gear ring 31. The rotating arm 30 no longer rotates downward, and the rotating arm 30 is limited to the position where it has rotated to by the locking structure.

[0045] Depend on Figure 4 It can be seen that a recessed area 51 is provided on the mounting seat 50, a first side wall 52 is provided on the side of the recessed area 51 away from the main unit 10, and a second side wall 53 is provided on the side of the recessed area 51 close to the main unit 10. The first side wall 52 forms a first pushing structure, and the second side wall 53 forms a second pushing structure. The pawl 60 is rotatably installed on the bottom surface of the recessed area 51 between the first side wall 52 and the second side wall 53.

[0046] To facilitate installation, a mounting shaft 54 ​​is fixed on the side of the mounting seat 50 away from the recessed area 51, and the cam 40 is fixed on the mounting shaft 54. Specifically, a circular groove is provided on one side surface of the rotating arm 30, and the one-way inner gear ring 31 is arranged on the inner side wall of the circular groove. A circular mounting plate is provided on the other side surface of the rotating arm 30 corresponding to the circular groove, and a through hole connected to the circular groove is provided on the circular mounting plate. The mounting shaft 54 ​​passes through the through hole. The mounting shaft 54 ​​is rotatably installed on the head support 20 to form the rotating axis of the rotating arm 30 and the cam 40. Usually, a accommodating hole adapted to the circular mounting plate is provided on the head support 20. The circular mounting plate is rotatably installed at the accommodating hole, which facilitates the rotatable installation of the rotating arm 30 and can make the rotation of the rotating arm 30 more stable.

[0047] Depend on Figure 2 、 Figure 3 、 Figure 6 and Figure 8 As can be seen, the pawl 60 includes a pawl body 61 and a plate body 62 fixedly connected to the end of the pawl body 61, with a right angle formed between the pawl body 61 and the plate body 62. Accordingly, the third pushing structure is provided on the protrusion 22. The side of the protrusion 22 closer to the main unit 10 is provided with an inclined surface, which can serve as a guide. The interaction between the protrusion 22 and the plate body 62 can push the pawl 60 to slide away from the mounting base 50.

[0048] Specifically, a mounting hole is provided at the connection between the pawl body 61 and the plate body 62, and a bolt 90 passing through the mounting hole is fixed on the bottom surface of the recessed area 51. The elastic member 70 is a spring sleeved on the rod part between the head of the bolt 90 and the pawl 60. Of course, it can also be a sleeve made of elastic material.

[0049] In other embodiments, the downward flipping toggle structure may also be configured as follows, including a downward flipping limiting rib provided on the side of the cam 40, the downward flipping limiting rib extending radially along the rotation axis of the cam 40; and a corresponding rotating arm limiting rib provided on the rotating arm 30, the rotating arm limiting rib extending radially along the rotation axis of the rotating arm 30, the downward flipping limiting rib being provided on the side of the rotating arm limiting rib close to the main body 10. It should be noted that the rotating arm limiting rib of the downward flipping toggle structure and the rotating arm limiting rib of the upward flipping toggle structure are of the same structure, or rotating arm limiting ribs may be provided on the corresponding downward flipping toggle structure and the corresponding upward flipping toggle structure respectively.

[0050] In an embodiment of the present invention, the outer peripheral side of the rotating arm 30 away from the main unit 10 is set to a circular shape, and the locking structure includes a spring plunger 80 fixed on the head support 20, and two positioning grooves spaced apart on the outer peripheral side of the rotating arm 30 away from the main unit 10. One positioning groove is located at the midline position of the rotating arm 30, and is used to limit the main unit 10 to the front side of the user's face. The other positioning groove is located on the upper side of the midline, and is used to limit the main unit 10 to the flipped-up position.

[0051] In some other embodiments, the outer peripheral side of the rotating arm 30 away from the main unit 10 is set to a circular shape, and a plurality of positioning grooves are sequentially provided on the outer peripheral side of the rotating arm 30 away from the main unit 10. A ridge is provided on the head support 20 for locking into one of the positioning grooves, which can also achieve locking.

[0052] In an embodiment of the present invention, in order to facilitate installation, connecting plates 21 are respectively provided on opposite sides of the head support 20, and the rotating arm 30 and the sliding drive mechanism are respectively rotatably installed on the connecting plates 21 on the corresponding sides, and the rotating arm 30 and the sliding drive mechanism are respectively provided on opposite sides of the connecting plate 21, and the rotating arm 30 is installed on the connecting plate 21 by clamping the cam 40 and the mounting seat 50. Of course, a bearing can also be provided between the circular mounting plate and the accommodating hole to enhance the rotational mounting performance.

[0053] Specifically, the head support 20 includes an arc-shaped hoop body and a tension adjustment mechanism arranged between the two ends of the hoop body. The tension adjustment mechanism includes a shell, a gear rotatably installed in the cavity surrounded by the shell, an adjustment wheel installed on the shell for driving the gear to rotate, and a locking structure arranged between the adjustment wheel and the shell. A first rack and a second rack are respectively provided on the two ends of the hoop body. The first rack and the second rack are respectively inserted into the cavity surrounded by the shell and mesh with the gear for transmission; two connecting plates 21 are respectively fixed on the hoop body.

[0054] In some other embodiments, an elastic band may be provided between the two ends of the hoop body, or a flexible band and Velcro may be provided to adjust the tightness.

[0055] The specific structure of the head support 20 is well known in the art and will not be described in detail here.

[0056] The above descriptions are merely some embodiments of the present invention and are 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 in the scope of protection of the present invention.

Claims

1. A head-mounted device, comprising a host and a head support, characterized in that: Rotating arms are rotatably mounted on opposite sides of the head support, the two rotating arms are arranged in parallel and are slidably connected to the main unit, locking structures are respectively provided between the head support and the two rotating arms, and sliding drive mechanisms for driving the main unit to slide along the two rotating arms are rotatably mounted on opposite sides of the head support, the two sliding drive mechanisms are respectively coaxially arranged with the rotating arms on the corresponding sides, and an upward flip-toggle structure and a downward flip-toggle structure that can be engaged / disengaged are provided between the sliding drive mechanisms and the rotating arms on the same side, when the upward flip-toggle structure is engaged, the downward flip-toggle structure is in a separated state, and when the downward flip-toggle structure is engaged, the upward flip-toggle structure is in a separated state; Slide arms are fixed on both sides of the main unit, and the two slide arms are slidably connected to the rotating arms on the corresponding sides. The sliding drive mechanism is arranged between the head support and the slide arms. The sliding drive mechanism includes a cam rotatably mounted on the head support, and the cam is coaxially arranged with the rotating arm on the same side. An arc-shaped connecting groove is provided on the cam, and the distance between the first end of the connecting groove and the rotating shaft of the cam is smaller than the distance between the second end of the connecting groove and the rotating shaft of the cam. The cam also includes a shift rod fixed on the end of the slide arm away from the main unit, and the shift rod is inserted into the connecting groove.

2. The head-mounted device according to claim 1, wherein: A guide groove is provided on one side of the sliding arm close to the rotating arm, a sliding block inserted into the guide groove is fixed on the corresponding side of the rotating arm, and the two rotating arms are arranged between the two sliding arms.

3. The head-mounted device according to claim 1, wherein: The flip-up toggle structure includes a cam pushing structure arranged on the cam, and a corresponding rotating arm pushing structure arranged on the rotating arm. The cam pushing structure is arranged on a side of the rotating arm pushing structure away from the host.

4. The head-mounted device according to claim 3, wherein: The cam pushing structure is an upward-flipping limiting rib arranged on the side of the cam close to the rotating arm, and the upward-flipping limiting rib extends radially along the rotating shaft of the cam; the rotating arm pushing structure is a rotating arm limiting rib arranged on the side of the rotating arm close to the cam, and the rotating arm limiting rib extends radially along the rotating shaft of the rotating arm.

5. The head-mounted device according to claim 3, wherein: The downward flipping and toggling structure includes a one-way inner gear ring arranged on the rotating arm and coaxially arranged with the rotating axis of the rotating arm, a mounting seat arranged in the one-way inner gear ring and fixedly connected to the rotating axis of the cam, a first pushing structure and a second pushing structure arranged at intervals on the mounting seat, and a pawl rotatably mounted on the mounting seat between the first pushing structure and the second pushing structure, the rotating axis of the pawl is parallel to the rotating axis of the cam and a spacing is provided between the rotating axis of the pawl and the rotating axis of the cam, and the pawl is slidably mounted on the mounting seat along the setting direction of its rotating axis; it also includes an elastic member for pushing the pawl to slide toward the side close to the mounting seat, and a third pushing structure arranged on the head support for pushing the pawl to slide toward the side away from the mounting seat.

6. The head-mounted device according to claim 5, wherein: The first pushing structure is arranged on a side away from the host, and the second pushing structure is arranged on a side close to the host.

7. The head-mounted device according to claim 6, wherein: A recessed area is provided on the mounting seat, a first side wall is provided on the side of the recessed area away from the main unit, and a second side wall is provided on the side of the recessed area close to the main unit. The first side wall forms the first pushing structure, and the second side wall forms the second pushing structure. The pawl is rotatably mounted on the bottom surface of the recessed area between the first side wall and the second side wall.

8. The head-mounted device according to claim 7, wherein: A mounting shaft is fixed on a side of the mounting seat away from the recessed area, the cam is fixed on the mounting shaft, and the mounting shaft is rotatably mounted on the head support to form the cam and the rotating shaft of the rotating arm.

9. The head-mounted device according to claim 7, wherein: The pawl includes a pawl body and a plate body fixedly connected to the end of the pawl body, a right angle is provided between the pawl body and the plate body, a mounting hole is provided at the connection between the pawl body and the plate body, a bolt passing through the mounting hole is fixed on the bottom surface of the recessed area, and the elastic member is sleeved on the rod body portion between the head of the bolt and the pawl.

10. The head mounted device according to any one of claims 1 to 9, wherein: Connecting plates are respectively provided on opposite sides of the head support, and the rotating arm and the sliding drive mechanism are respectively rotatably mounted on the connecting plates on the corresponding sides.

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