CN111929905B

CN111929905B - Upset supporting mechanism and double-deck bandage formula head-mounted apparatus

Info

Publication number: CN111929905B
Application number: CN202010999000.2A
Authority: CN
Inventors: 李登强
Original assignee: Goertek Optical Technology Co Ltd
Current assignee: Goertek Techology Co Ltd
Priority date: 2020-09-22
Filing date: 2020-09-22
Publication date: 2021-01-26
Anticipated expiration: 2040-09-22
Also published as: CN111929905A

Abstract

The invention belongs to the technical field of electronic products, and particularly relates to a turnover supporting mechanism and double-layer bandage type head-wearing equipment. The overturning supporting mechanism comprises a first sliding part, a second sliding part, a first rotating installation part arranged on the first sliding part, a second rotating installation part arranged on one side, far away from the first rotating installation part, of the second sliding part, a locking block arranged between the second sliding part and the first sliding part and rotatably installed on the first sliding part, a limiting structure arranged on the second sliding part, a resetting structure and a touch structure. The double-layer bandage type head-wearing device comprises a host machine, a first outer bandage, a second outer bandage, a bandage adjusting device and a front and back adjusting mechanism, wherein overturning supporting mechanisms are respectively arranged between the inner bandage structure and the first outer bandage and the second outer bandage on the corresponding side. The problem of current head-mounted apparatus's host computer fall easily after the upset is solved, simple structure is convenient for adjust, can reduce the weight and the volume of host computer.

Description

Upset supporting mechanism and double-deck bandage formula head-mounted apparatus

Technical Field

The invention belongs to the technical field of electronic products, and particularly relates to a turnover supporting mechanism and double-layer bandage type head-wearing equipment.

Background

Head-mounted devices (such as virtual reality glasses and the like) increasingly appear in daily life, and in order to be suitable for different users and be convenient for the users to use, the head-mounted devices increasingly have a turning function, an eye distance adjusting function and the like; the turnover function is that the host machine is hinged with a support structure used for fixing the head-mounted equipment on the head of a user, when the user interacts with the outside, the host machine only needs to be turned upwards to avoid shielding eyes, and the whole head-mounted equipment does not need to be taken down from the head of the user; the eye distance adjusting function is mainly realized by changing the distance between the lens and the display screen, namely, the lens barrel is adjusted to be close to or far away from the display screen so as to be suitable for the eye distances of different users.

At present, the upset function, the eye distance regulatory function is adjusted through solitary mechanism, common head-mounted device can not possess the upset function simultaneously, eye distance regulatory function, the head-mounted device who possesses the upset function, the host computer is articulated together with bandeau fixed knot structure, the unable back-and-forth movement of host computer adjusts the eye distance, only can be through adjusting the inside lens cone of host computer in order to realize the eye distance regulation, set up the weight and the volume increase that can lead to the host computer in head-mounted device's host computer inside with adjustment mechanism, there is the risk of falling after the upset.

Disclosure of Invention

The invention aims to provide a turnover support mechanism, and aims to solve the problem that a main machine of existing head-mounted equipment is easy to fall down after being turned over.

The invention discloses an overturning supporting mechanism which comprises a first sliding piece and a second sliding piece, wherein the second sliding piece is slidably arranged on the first sliding piece; still including setting up the second slider with between the first slider and rotate and install locking piece on the first slider, follow the slip direction interval of second slider sets up limit structure and reset structure on the second slider, limit structure sets up and is keeping away from one side of first rotation installation department, and limit structure, reset structure is located same one side department of locking piece still be equipped with on the second slider and be used for promoting locking piece to limit structure department pivoted touching structure.

As an improvement, the second sliding member includes a bottom plate and two side plates respectively disposed at two opposite side edges of the bottom plate along a sliding direction of the second sliding member, one of the side plates is provided with a locking notch, one side of the locking notch close to the first rotating installation portion forms the reset structure, one side of the locking notch far away from the first rotating installation portion and one side plate portion disposed at one side of the locking notch far away from the first rotating installation portion form the limit structure; the corresponding side of the locking block is provided with a first clamping protrusion and a second clamping protrusion at intervals.

As an improvement, the touch structure comprises a push rod arranged along the sliding direction of the second sliding part, and the push rod is arranged at one side, away from the locking notch, of the rotation installation position of the locking block.

As an improvement, the touch structure further comprises a mounting seat arranged between the two side plates, and the ejector rod is fixedly connected to the mounting seat.

As an improvement, the first sliding part comprises a long-strip-shaped groove body, first baffle plates are arranged on the side edges of the groove opening of the groove body respectively, an interval is reserved between the two first baffle plates, and the second sliding part is slidably mounted in sliding grooves formed by the two first baffle plates and the groove body.

As an improvement, the groove body is provided with an avoiding notch corresponding to the groove wall of the locking notch, and the distance between the rotary installation position of the locking block and the groove wall is smaller than the distance between the rotary installation position of the locking block and the first clamping protrusion.

As an improvement, second baffle plates are respectively arranged on one side edges of the two side plates far away from the bottom plate, a space is reserved between the two second baffle plates, and the distance between the bottom plate and the outer side of the second baffle plate is matched with the distance between the groove bottom of the groove body and the inner side of the first baffle plate; the locking block is arranged between the second baffle plate and the bottom plate.

The second purpose of the invention is to provide a double-layer binding-belt type head-wearing device, which aims to solve the problem that a main machine of the existing head-wearing device is easy to fall down after being turned over, has a simple structure, is convenient to adjust, and can reduce the weight and the volume of the main machine.

The invention discloses double-layer bandage type head-wearing equipment which comprises a host machine, a first outer bandage, a second outer bandage and a bandage adjusting device, wherein the first outer bandage and the second outer bandage are respectively connected to two opposite sides of the host machine; the main machine is provided with a first outer bandage and a second outer bandage, and the first outer bandage and the second outer bandage are arranged in a same plane; the inner layer binding belt structure and the corresponding side are respectively provided with the overturning supporting mechanism between the first outer binding belt and the second outer binding belt, the first rotating installation part is rotatably connected with the inner layer binding belt structure, and the second rotating installation part and the outer binding belt are located at one side of the main machine, far away from the first rotating installation part, and are rotatably connected.

As an improvement, the front-back adjusting mechanism comprises a knob rotatably mounted on the main machine and a supporting piece coaxially arranged with the knob, the supporting piece is in threaded transmission connection with the knob, and one end, close to the inner-layer binding structure, of the supporting piece is fixedly inserted on the inner-layer binding structure.

As an improvement, an arc panel is arranged on one side of the bandage adjusting device close to the main machine, and the bandage adjusting device is rotatably connected with the arc panel.

Due to the adoption of the technical scheme, the turnover supporting mechanism comprises a first sliding piece and a second sliding piece which is slidably mounted on the first sliding piece, wherein a first rotating mounting part is arranged at one end part of the first sliding piece, and a second rotating mounting part is arranged at the end part of one side, far away from the first rotating mounting part, of the second sliding piece; the sliding mechanism comprises a first sliding part, a second sliding part, a first limiting structure and a reset structure, wherein the first sliding part is arranged on the first sliding part, the second sliding part is arranged on the second sliding part, the first limiting structure is arranged on the first sliding part, the second limiting structure is arranged on. The double-layer bandage type head-wearing equipment comprises a main machine, a first outer bandage, a second outer bandage and a bandage adjusting device, wherein the first outer bandage and the second outer bandage are respectively connected to two opposite sides of the main machine; the device also comprises an inner-layer binding belt structure arranged between the first outer binding belt and the second outer binding belt, and a front-back adjusting mechanism arranged between the main machine and the inner-layer binding belt structure and used for adjusting the distance between the main machine and the inner-layer binding belt structure, wherein the front-back adjusting mechanism is arranged on the main machine and is propped against the supporting structure; be equipped with upset supporting mechanism respectively between the outer bandage of the first outer bandage of inlayer bandage structure and corresponding side, second, first rotation installation department rotates with inlayer bandage structure to be connected, and the second rotates the installation department and is located one side department rotation connection that the host computer was kept away from to first rotation installation department with outer bandage. When the head-mounted equipment is installed, the overturning support mechanism is arranged between the host and a support structure for supporting the head-mounted equipment on the head of a user, when the host is overturned upwards, the second sliding piece slides to one side far away from the first rotating installation part along the first sliding piece, the touch structure pushes the locking block to rotate towards the limiting structure, after overturning, the gravity of the host generates force along the direction of the first sliding piece on the second sliding piece, so that the limiting structure is propped against the rotated locking block to form locking, and the host which is overturned upwards can be prevented from falling down; when the host is turned back downwards to the front of the eyes of the user, the host needs to be turned upwards again, the second sliding piece slides to one side far away from the first rotating installation part along the first sliding piece, so that the limiting structure is separated from the locking block, the resetting structure can touch the side surface of the rotated locking block to reset the locking block along with the continuous sliding of the second sliding piece, when the host is turned downwards, the second sliding piece does not touch the locking block when sliding to one side close to the first rotating installation part along the first sliding piece, and the host can be smoothly turned back downwards to the front of the eyes of the user; the turnover support mechanism and the double-layer binding-belt type head-wearing device have the functions of turnover and eye distance adjustment, the problem that a host of the existing head-wearing device is easy to fall down after being turned is solved, the structure is simple, the adjustment is convenient, and the weight and the size of the host can be reduced.

Drawings

FIG. 1 is a schematic front view of an embodiment of the present invention;

FIG. 2 is a schematic perspective view of the roll-over support mechanism according to an embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view of the roll-over support mechanism of an embodiment of the present invention;

FIG. 4 is a structural diagram illustrating a locked state of the roll-over support mechanism according to an embodiment of the present invention;

FIG. 5 is a schematic perspective view of a two-layer taped headgear according to an embodiment of the present invention;

FIG. 6 is a schematic side view of a two-layer bandage-type headgear of an embodiment of the present invention;

FIG. 7 is a schematic structural view of a double-layer bandage type head-wearing device according to an embodiment of the present invention in an inverted state;

FIG. 8 is a schematic cross-sectional view of the fore-aft adjustment mechanism of a double-layered bandage-type headgear of an embodiment of the present invention;

wherein, 11, the first sliding member, 12, the mounting ear, 13, the first rotating mounting member, 14, the locking block, 15a, the first locking protrusion, 15b, the second locking protrusion, 16, the first baffle, 17, the avoiding notch, 21, the second sliding member, 22, the barrel, 23, the second rotating mounting member, 24, the side plate, 25, the locking notch, 26, the second baffle, 27a, the ejector rod, 27b, the mounting seat, 30, the main frame, 31, the first outer bandage, 32, the second outer bandage, 33, the housing, 34, the lens barrel assembly, 35, the mounting sleeve, 40, the bandage adjusting device, 41, the cambered plate, 42, the rotating shaft, 43, the adjusting wheel, 50a, the brim, 50b, the first inner bandage, 50c, the second inner bandage, 51, the limiting groove, 60, the front and back adjusting mechanism, 61, the knob, 611, the mounting shaft, 62, the supporting member, 621, the rod body, 622, the locking head, 63, the mounting block, 631, and the second inner bandage, 51, and (7) installing holes.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It should be noted that if the present invention relates to a directional indication (for example, up, down, front, back, etc.), the directional indication is only used to explain the relative position relationship between the components in a specific posture, and if the specific posture changes, the directional indication changes accordingly; if the description of "first", "second", etc. is referred to in this disclosure, then the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicit identification of the number of technical features indicated.

Figures 1 to 8 are schematic structural views of a turning support mechanism and a double-layer bandage type head-wearing device according to an embodiment of the invention, wherein, fig. 1 shows a front view structure diagram of the turnover supporting mechanism of the embodiment of the invention, fig. 2 shows a three-dimensional structure diagram of the turnover supporting mechanism of the embodiment of the invention, fig. 3 is a schematic sectional structural view showing the roll-over supporting mechanism according to the embodiment of the invention, fig. 4 is a schematic structural view showing a locked state of the roll-over supporting mechanism according to the embodiment of the invention, fig. 5 shows a schematic perspective view of a two-layer bandage-type headgear according to an embodiment of the invention, fig. 6 shows a schematic side view of a two-layer bandage-type headgear according to an embodiment of the invention, figure 7 shows a schematic structural view of a two-layer taping headset according to an embodiment of the invention in an inverted state, figure 8 shows a schematic cross-sectional view of the fore-aft adjustment mechanism of a two-layer bandage-type headgear of an embodiment of the present invention. For the sake of convenience, only the portions related to the embodiments of the present invention are shown in the drawings.

As can be seen from fig. 1, 2, 3 and 4, in the embodiment of the present invention, the roll-over support mechanism includes a first sliding member 11, a second sliding member 21 slidably mounted on the first sliding member 11, a first rotation mounting portion is provided at one end of the first sliding member 11, and a second rotation mounting portion is provided at an end of the second sliding member 21 on a side away from the first rotation mounting portion; the sliding mechanism further comprises a locking block 14 which is arranged between the second sliding part 21 and the first sliding part 11 and is rotatably installed on the first sliding part 11, a limiting structure and a resetting structure which are arranged on the second sliding part 21 at intervals along the sliding direction of the second sliding part 21, the limiting structure is arranged on one side far away from the first rotating installation part, the limiting structure and the resetting structure are located on the same side of the locking block 14, and a touch structure which is used for pushing the locking block 14 to rotate towards the limiting structure is further arranged on the second sliding part 21.

When the head-mounted equipment is installed, the overturning support mechanism is arranged between the host and the support structure for supporting the head-mounted equipment on the head of a user, when the host is overturned upwards, the second sliding part 21 slides to one side far away from the first rotating installation part along the first sliding part 11, the locking block 14 is pushed to rotate towards the limiting structure by the touch structure, after overturning, the gravity of the host generates force along the direction of the first sliding part 11 on the second sliding part 21, so that the limiting structure is pressed against the rotated locking block 14 to form locking, as shown in fig. 4, the host which is overturned upwards can be prevented from falling down. When turning back user's eye the place ahead downwards with the host computer, need continue upwards turning back the host computer once more, second slider 21 slides to the one side of keeping away from first rotation installation department along first slider 11, make limit structure and locking piece 14 separation, reset structure can touch locking piece 14 on the side of locking piece 14 after the rotation along with the continuation of second slider 21 slides, during the host computer of turning back downwards, second slider 21 just can not touch locking piece 14 when sliding to the one side that is close to first rotation installation department along first slider 11, can be smooth turn back user's eye the place ahead downwards with the host computer.

In the embodiment of the present invention, the second sliding member 21 includes a bottom plate, and two side plates 24 respectively disposed at two opposite sides of the bottom plate and arranged along the sliding direction of the second sliding member 21, wherein a locking notch 25 is disposed on one side plate 24, a reset structure is formed at a side of the locking notch 25 close to the first rotation mounting portion, and a limit structure is formed at a side of the locking notch 25 far from the first rotation mounting portion and a side plate 24 portion of the side plate 24 far from the first rotation mounting portion; a first locking protrusion 15a and a second locking protrusion 15b are provided at intervals on the corresponding sides of the locking block 14. After the main frame is turned upwards, the first locking projection 15a on the locking block 14 is locked to the side of the locking notch 25 far away from the first rotating installation part, and the second locking projection 15b on the locking block 14 is pressed against the side plate 24 part of the side plate 24 far away from the first rotating installation part, so as to form locking, as shown in fig. 4.

In order to facilitate the touching structure to push the locking block 14 to rotate towards the limiting structure, the touching structure includes a push rod 27a arranged along the sliding direction of the second sliding member 21, the push rod 27a is arranged at one side of the rotation installation position of the locking block 14, which is far away from the locking notch 25, and the push rod 27a can push the locking block 14 to rotate towards the locking notch 25 when touching the locking block 14. Specifically, for the convenience of installation, the touch structure further comprises an installation seat 27b, the top rod 27a is fixedly connected to the installation seat 27b, the installation seat 27b is fixedly installed between the two side plates 24, and generally, the installation seat 27b and the top rod 27a are of an integrated structure, so that the installation and installation are convenient.

In order to facilitate the rotating installation of the second sliding part 21, a cylinder body 22 is arranged on one side of the bottom plate, which is far away from the two side plates 24, the opening end of the cylinder body 22 is communicated with the area enclosed by the bottom plate and the two side plates 24, and a connecting hole is arranged on the bottom of the cylinder body 22; the second rotational mounting member 23 is inserted into the cylindrical body 22 from the cylindrical opening end and is passed out from a coupling hole in the cylindrical bottom, and typically, the second rotational mounting member 23 is a bolt.

In the embodiment of the present invention, the first sliding member 11 includes a long-strip-shaped groove body, the first baffle plates 16 are respectively disposed on the side edges of the groove opening of the groove body, a gap is left between the two first baffle plates 16, and the second sliding member 21 is slidably mounted in a sliding groove formed by the two first baffle plates 16 and the groove body.

Because the thickness of the groove wall of the groove body and the thickness of the side plate of the second sliding part 21 are thinner, in order to ensure that the first clamping protrusion 15a is firmly clamped to one side of the locking notch 25 far away from the first rotating installation part to form a locking part, the groove wall of the groove body corresponding to the locking notch 25 is provided with an avoiding notch 17, the distance between the rotating installation part of the locking block 14 and the groove wall of the groove body is smaller than the distance between the rotating installation part of the locking block 14 and the first clamping protrusion 15a, so that the first clamping protrusion 15a can penetrate out of the avoiding notch 17 when being clamped to one side of the locking notch 25 far away from the first rotating installation part, and the first clamping protrusion 15a can be firmly clamped to one side of the locking notch 25 far away from the first rotating installation part.

This first rotation installation department is the installation ear 12 of connection on the tank bottom of cell body, passes installation ear 12 through first rotation installed part 13 and realizes rotating the installation, and usually, first rotation installed part 13 is the bolt.

Usually, a second baffle 26 is respectively arranged on one side of the two side plates 24 of the second sliding part 21 far away from the bottom plate, a space is left between the two second baffles 26, and the distance between the bottom plate of the second sliding part 21 and the outer side of the second baffle 26 is matched with the distance between the groove bottom of the groove body and the inner side of the first baffle 16; the locking block 14 is disposed between the second stop 26 and the base plate. So that the second slider 21 can be stably slid along the first slider 11.

As can be seen from fig. 5, 6, 7 and 8, in the embodiment of the present invention, a double-layered bandaging headset is further provided, where one side of the double-layered bandaging headset close to the head of the user is defined as inner, and the other side far from the head of the user is defined as outer, the double-layered bandaging headset comprises a main body 30, a first outer bandage 31 and a second outer bandage 32 respectively connected to two opposite sides of the main body 30, and a bandage adjusting device 40, elastic connectors are respectively provided between the first outer bandage 31 and the second outer bandage 32, and the double-layered bandaging headset further comprises an inner-layered bandaging structure provided between the main body 30 and the inner-layered bandaging structure for adjusting the distance therebetween, and a front-back adjusting mechanism 60 provided between the main body 30 and the inner-layered bandaging structure, and the front-back adjusting mechanism 60 is mounted on the main body 30 and is against the inner-layered bandaging structure; the overturning support mechanism is respectively arranged between the inner-layer binding belt structure and the first outer binding belt 31 and the second outer binding belt 32 on the corresponding side, a first rotating installation part of the overturning support mechanism is rotatably connected with the inner-layer binding belt structure, and a second rotating installation part is rotatably connected with the outer binding belt on one side of the first rotating installation part, which is far away from the main machine 30; the first and second

inner straps

50b and 50c of the inner layer strap configuration are inserted into the strap adjusting means 40 and drivingly connected to the strap adjusting means 40, respectively. Specifically, the first outer band 31 and the second outer band 32 are made of hard materials and have rigidity; the first inner strap 50b and the second inner strap 50c are made of a flexible material and have flexibility.

Because the first inner bandage 50b and the second inner bandage 50c of the inner bandage structure are respectively inserted into the bandage adjusting device 40 and are in transmission connection with the bandage adjusting device 40, when the double-layer bandage type head-wearing equipment is worn, the bandage adjusting device 40 adjusts the first inner bandage 50b and the second inner bandage 50c to slide oppositely, so that the space between the inner bandage structure and the bandage adjusting device 40 is tightly adjusted, and the inner bandage structure and the bandage adjusting device 40 fix the whole double-layer bandage type head-wearing equipment on the head of a user; since the first and second

outer straps

31 and 32 are respectively connected to opposite sides of the main body 30 and elastic connectors are respectively provided between the first and second

outer straps

31 and 32 and the strap adjusting unit 40, the front and rear adjusting mechanism 60 is pressed against the inner strap structure by the elastic force of the two elastic connectors provided corresponding to the first and second

outer straps

31 and 32. When the eye distance needs to be adjusted, the distance between the main machine 30 and the inner-layer binding structure is adjusted through the front-back adjusting mechanism 60, so that the eye distance is adjusted, and the weight and the volume of the main machine 30 are increased due to the fact that an independent adjusting structure is not required to be arranged on the main machine 30; the main machine 30 is pulled to one side far away from the inner bandage structure, so that the front-back adjusting mechanism 60 is separated from the inner bandage structure, the main machine 30 can be turned upwards and separated from the eyes of a user, and the turning supporting mechanisms are respectively arranged between the inner bandage structure and the first outer bandage 31 and the second outer bandage 32 on the corresponding side, so that the main machine 30 can be supported above the eyes of the user, the main machine 30 turned upwards can be prevented from falling down, and the whole double-layer bandage type head-mounted equipment can be interacted with the outside without taking down the whole double-layer bandage type head-mounted equipment from the head of the user; the double-layer bandage type head-wearing device disclosed by the embodiment of the invention has the functions of overturning and adjusting the eye distance, solves the problem that the host of the existing head-wearing device is easy to fall down after overturning, has a simple structure, is convenient to adjust, and can reduce the weight and the volume of the host 30.

In the embodiment of the present invention, the front-back adjustment mechanism 60 includes a knob 61 rotatably mounted on the main body 30, and a support member 62 coaxially disposed with the knob 61, the support member 62 is in threaded transmission connection with the knob 61, one end of the support member 62 close to the inner strap structure is fixedly inserted into the inner strap structure, specifically, the support member 62 is fixedly inserted into the visor 50a of the inner strap structure, and the support member 62 and the visor 50a cannot rotate axially after being fixedly inserted into each other. When the knob 61 is rotated, the knob 61 and the support 62 rotate relatively, but the support 62 is fixedly inserted on the brim 50a of the inner bandage structure and cannot rotate relatively to the inner bandage structure, so that when the knob 61 is rotated, the support 62 can move towards the direction close to the knob 61 or move towards the direction far away from the knob 61, thereby changing the distance between the main machine 30 and the inner bandage structure and realizing the eye distance adjustment; specifically, the knob 61 is rotated to move the support 62 in a direction away from the knob 61, the distance between the main unit 30 and the inner-layer binding structure is increased by pushing the support 62, so that the eye distance is increased, the distance between the main unit 30 and the inner-layer binding structure is increased, the two elastic connecting pieces are further stretched, the knob 61 is rotated reversely to move the support 62 in a direction close to the knob 61, the length of the support 62 part between the main unit 30 and the inner-layer binding structure is gradually reduced, the distance between the main unit 30 and the inner-layer binding structure is also gradually reduced under the pulling force of the two elastic connecting pieces, so that the eye distance is reduced, and the main unit 30 does not need to be provided with a separate adjusting structure to increase the weight and the volume of the main unit 30. The main body 30 is pulled to one side far away from the inner bandage structure, so that one end of the support piece 62, which is pressed against the inner bandage structure, is separated from the inner bandage structure, the main body 30 can be separated from the eyes of a user after being turned upwards, and the whole double-layer bandage type head-mounted equipment can be interacted with the outside without taking down the whole double-layer bandage type head-mounted equipment from the head of the user.

The support member 62 comprises a rod 621, and a clamping head 622 arranged at one end of the rod 621 close to the inner binding structure; the inner-layer binding structure is provided with a limiting groove 51 corresponding to the clamping head 622, and after the clamping head 622 is clamped in the limiting groove 51, the rod body 621 cannot rotate along the axial direction thereof, and generally, the limiting groove 51 may be formed by a retaining wall protruding out of the inner-layer binding structure or a recess arranged on the inner-layer binding structure.

In order to facilitate the support 62 and the knob 61 to perform the screw thread transmission, a mounting shaft 611 coaxially arranged with the knob 61 is fixedly installed on the knob 61, and the rod body 621 is in screw thread transmission connection with the mounting shaft 611; specifically, an axial threaded hole is formed in one end of the rod 621, which is away from the clamping head 622, an axial hole is formed in the mounting shaft 611, a threaded rod (not shown in the figure) in threaded transmission connection with the threaded hole is fixedly mounted in the axial hole, and generally, the axial threaded hole and the threaded rod are respectively rectangular threads or trapezoidal threads, so that transmission is facilitated. Of course, an external thread may be disposed on an end of the rod 621 away from the clamping head 622, and an internal thread adapted to the external thread may be disposed on an inner sidewall of the axial hole, so that the rod 621 is in threaded transmission connection with the axial hole of the mounting shaft 611.

In order to facilitate the knob 61 to be rotatably mounted on the main body 30, the main body 30 includes a housing 33, and a lens barrel assembly 34 fixedly mounted in a cavity defined by the housing 33, an elongated hole is provided at a middle position of an upper side wall of the housing 33, a mounting block 63 is provided at a side of the elongated hole close to the inner layer binding structure, the knob 61 is rotatably mounted between the mounting block 63 and the lens barrel assembly 34, and a portion of the knob 61 extends to an outer side of the housing 33 through the elongated hole, and the mounting block 63 may be fixedly mounted with the lens barrel assembly 34 or with the housing 33. Specifically, the lens barrel unit 34 is provided with a mounting sleeve 35 corresponding to the mounting shaft 611, the mounting block 63 is provided with a mounting hole 631 corresponding to the mounting shaft 611, and both ends of the mounting shaft 611 are rotatably mounted in the mounting sleeve 35 and the mounting hole 631, respectively.

Specifically, the inner bandage structure further includes a visor 50a disposed at a position corresponding to the main unit 30, the first inner bandage 50b and the second inner bandage 50c are respectively connected to opposite sides of the visor 50a, and the limiting groove 51 is disposed on the visor 50 a.

In the embodiment of the present invention, as can be seen from fig. 5, 6 and 7, in order to facilitate the upward turning of the main body 30, an arc panel 41 is disposed on one side of the band adjusting device 40 close to the main body 30, and the band adjusting device 40 is rotatably connected to the arc panel 41, specifically, rotating shafts 42 are respectively disposed at two sides of the arc panel 41 and at two ends of the corresponding band adjusting device 40, although a rotating shaft along the horizontal direction may be disposed between the band adjusting device 40 and the arc panel 41, and the band adjusting device 40 and the arc panel 41 can also be rotatably connected. When the main body 30 is turned upwards, the strap adjusting device 40 and the cambered plate 41 rotate to a certain degree, and the wearing is not affected.

Specifically, the binding belt adjusting device 40 comprises a shell body which is enclosed into a slide way, a transmission gear which is rotatably installed in the slide way, an adjusting wheel 43 which is rotatably installed at the rear side of the shell body and is used for driving the transmission gear to rotate, and an anti-loosening structure is arranged between the adjusting wheel 43 and the shell body; the parts of the first inner bandage 50b and the second inner bandage 50c inserted into the slide ways are respectively provided with a first transmission rack and a second transmission rack which are meshed with the upper side and the lower side of the transmission gear. The anti-loosening structure comprises an inner gear ring structure which is arranged on the shell and is coaxial with the adjusting wheel 43, and a pawl structure which is used for fixing the adjusting wheel 43 and is coaxial with the adjusting wheel 43, wherein the adjusting wheel 43 can only rotate in one direction but not rotate in the opposite direction through the limiting function between the pawl and the inner gear ring structure, and the anti-loosening structure can prevent loosening after the first inner binding band 50b and the second inner binding band 50c are tightened. The band adjusting device 40 can adjust the tightness between the inner band structure and the band adjusting device 40, and there are many implementation manners in the prior art, which are not described herein again.

In the embodiment of the invention, the shell comprises a rear shell and a front shell which are buckled together, and a bracket is arranged between the rear shell and the front shell for the convenience of installation; the transmission gear is rotatably arranged between the bracket and the front shell.

Specifically, two elastic connecting members connected to the first and second

outer straps

31 and 32 are provided in the elastic band in the slide, and since the strap adjusting device 40 is generally formed in an arc shape to be adapted to the head of the user, in order to facilitate contraction of the elastic band, cover plates fixedly connected to the brackets are provided in the slide at positions corresponding to each elastic connecting member, respectively, and guide channels are formed between the bracket portions corresponding to the cover plates, and the elastic connecting members are provided in the corresponding guide channels.

The above description is only exemplary of the present invention and should not be taken as limiting the invention, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A turnover supporting mechanism comprises a first sliding part and a second sliding part which is slidably mounted on the first sliding part, and is characterized in that a first rotating mounting part is arranged at one end part of the first sliding part, and a second rotating mounting part is arranged at the end part of one side, far away from the first rotating mounting part, of the second sliding part; the first sliding part is arranged on the first sliding part, the second sliding part is arranged on the second sliding part, the first sliding part and the second sliding part are arranged on the first sliding part, the first sliding part and the second sliding part are arranged on the second sliding part, and the first sliding part and the second sliding part are arranged on the first sliding part and;

the second sliding part comprises a bottom plate and two side plates which are respectively arranged at two opposite side edges of the bottom plate and arranged along the sliding direction of the second sliding part, a locking notch is arranged on one side plate, the locking notch is close to one side of the first rotating installation part to form the reset structure, one side of the locking notch, which is far away from the first rotating installation part, and the side plate part, which is arranged at one side of the locking notch, which is far away from the first rotating installation part, form the limit structure; the corresponding side of the locking block is provided with a first clamping protrusion and a second clamping protrusion at intervals.

2. The tilt support mechanism of claim 1, wherein the contact structure comprises a push rod disposed along a sliding direction of the second slider, the push rod being disposed at a side of the rotational mounting of the lock block away from the lock notch.

3. The tilt support mechanism of claim 2, wherein the touch structure further comprises a mounting base disposed between the two side plates, and the top bar is fixedly connected to the mounting base.

4. The turnover support mechanism according to any one of claims 1 to 3, wherein the first sliding member includes a slot body in an elongated shape, first baffle plates are respectively disposed on the side edges of the slot body, a gap is left between the two first baffle plates, and the second sliding member is slidably mounted in a sliding groove formed by the two first baffle plates and the slot body.

5. The overturning support mechanism according to claim 4, wherein an avoiding notch is formed in a groove wall of the groove body corresponding to the locking notch, and a distance between a rotating installation position of the locking block and the groove wall is smaller than a distance between the rotating installation position of the locking block and the first clamping protrusion.

6. The overturning support mechanism according to claim 4, wherein second baffle plates are respectively arranged on one side edges of the two side plates far away from the bottom plate, a space is reserved between the two second baffle plates, and the distance between the bottom plate and the outer side of the second baffle plate is matched with the distance between the groove bottom of the groove body and the inner side of the first baffle plate; the locking block is arranged between the second baffle plate and the bottom plate.

7. A double-layer bandage type head-wearing device comprises a main machine, a first outer bandage, a second outer bandage and a bandage adjusting device, wherein the first outer bandage and the second outer bandage are respectively connected to two opposite sides of the main machine; the main machine is provided with a first outer bandage and a second outer bandage, and the first outer bandage and the second outer bandage are arranged in a same plane; the turning support mechanism as claimed in any one of claims 1 to 6 is provided between the inner-layer binding structure and the first and second outer binding bands on the corresponding side, the first rotary mounting portion is rotatably connected to the inner-layer binding structure, and the second rotary mounting portion is rotatably connected to the outer binding band at a side of the first rotary mounting portion away from the main frame.

8. The double-layer bandage type head-wearing equipment as claimed in claim 7, wherein said front-back adjusting mechanism comprises a knob rotatably mounted on said main frame, and a supporting member coaxially disposed with said knob, said supporting member being in threaded transmission connection with said knob, and one end of said supporting member near said inner bandage structure being inserted and fixed on said inner bandage structure.

9. The double-layered bandage type headgear of claim 7 wherein an arcuate plate is provided on a side of the strap adjusting means adjacent to the main body, the strap adjusting means being rotatably connected to the arcuate plate.