CN111929901A

CN111929901A - Double-layer bandage type head-mounted equipment

Info

Publication number: CN111929901A
Application number: CN202010998544.7A
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: 2020-11-13
Anticipated expiration: 2040-09-22
Also published as: CN111929901B

Abstract

The invention belongs to the technical field of electronic products, and particularly relates to double-layer bandage type head-wearing equipment which comprises a host, a first outer bandage, a second outer bandage and a bandage adjusting device, wherein elastic connecting pieces are respectively arranged among the first outer bandage, the second outer bandage and the bandage adjusting device; 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 inner-layer binding belt structure; the first inner bandage and the second inner bandage of the inner bandage structure are respectively inserted into the bandage adjusting device and are in transmission connection with the bandage adjusting device. The double-layer binding-belt type head-wearing equipment has the functions of overturning and adjusting the eye distance, is simple in structure and convenient to adjust, can reduce the weight and the volume of a host, and can prevent the host from falling after overturning.

Description

Double-layer bandage type head-mounted equipment

Technical Field

The invention belongs to the technical field of electronic products, and particularly relates to 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 double-layer bandage type head-wearing equipment which is simple in structure, convenient to adjust, capable of reducing the weight and the volume of a main machine and capable of preventing the main machine from falling down after being turned over.

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 further 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 installed on the main machine and abuts against the inner layer binding belt structure; and the first inner bandage and the second inner bandage of the inner bandage structure are respectively inserted into the bandage adjusting device and are in transmission connection with the bandage adjusting device.

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, the bandage adjusting device comprises a shell enclosing a slideway, a transmission gear rotatably mounted in the slideway, and an adjusting wheel rotatably mounted at the rear side of the shell and coaxially arranged with the transmission gear, wherein an anti-loosening structure is arranged between the adjusting wheel and the shell, and a pressing clutch mechanism is arranged between the adjusting wheel and the transmission gear; the parts of the first inner binding band and the second inner binding band inserted into the slideway are respectively provided with a first transmission gear and a second transmission rack which are meshed with the upper side and the lower side of the transmission gear.

As an improvement, the pressing clutch mechanism comprises a pressing rod, a button fixed on one end of the pressing rod, a pressing rod clutch structure fixed on the other end of the pressing rod, a sliding sleeve sleeved on the pressing rod and fixedly installed in the slideway, and an elastic reset piece arranged between the button and the sliding sleeve, wherein a limiting structure is arranged on the pressing rod, a connecting piece used for being matched with the limiting structure is arranged on the sliding sleeve, and a gear clutch structure matched with the pressing rod clutch structure is arranged on the transmission gear; an axial channel is arranged in the middle of the adjusting wheel, and the button is arranged in the axial channel and can slide along the axial direction.

As an improvement, the connecting piece comprises a mounting rod part mounted on the sliding sleeve, a limiting rod part used for being matched with the limiting structure, and a connecting rod part connected between the mounting rod part and the limiting rod part; the sliding sleeve is correspondingly provided with an inserting hole, and the mounting rod part is inserted in the inserting hole.

As an improvement, the limit structure includes a limit block disposed on the press rod, a clamp groove disposed on one side of the press button, an axial chute disposed on a portion of the press rod, which is away from one side of the press button, of the limit block, a steering groove disposed on one side of the limit block and communicated with the axial chute, and a return chute disposed on the other side of the limit block and communicated with the axial chute, wherein a first guide wall is disposed at a position of the end portion of the steering groove, which is close to the clamp groove, a second guide wall is disposed at a position of the clamp groove, which is corresponding to the clamp groove, a third guide wall is disposed at a position of the return chute, which is close to the end portion of the axial chute, and a bottom of the return chute is higher than a bottom of the axial chute.

As an improvement, the pressure lever clutch structure is a clutch gear, and comprises a cylinder body and a plurality of clutch teeth which are arranged on the outer peripheral side of the cylinder body at intervals along the circumferential direction; the transmission gear is close to be equipped with the axial hole on one side of depression bar, gear separation and reunion structure sets up in the axial hole, include along the circumference interval setting a plurality of spacing on the inside wall of axial hole, every the separation and reunion tooth is kept away from the relative both sides of the one end of depression bar are equipped with separation and reunion tooth direction inclined plane respectively, at every also be equipped with spacing direction inclined plane respectively on the relative both sides of spacing correspondence end.

As an improvement, a groove is arranged on the pressure lever, and the limiting block is arranged in the groove; and a pressure plate structure used for pressing the limiting rod part is arranged on the sliding sleeve.

As an improvement, a guide sliding groove is arranged on the corresponding side surface of the pressure lever, and the guide sliding groove extends to the position above the limiting block; the pressing plate structure comprises a mounting plate fixed on the sliding sleeve, a supporting arm connected to the mounting plate and inserted into the sliding sleeve, and a pressing plate connected to one end of the supporting arm inserted into the sliding sleeve, wherein the pressing plate is slidably mounted in the guide sliding groove and arranged corresponding to the limiting rod part.

As a modification, the housing comprises a rear shell and a front shell which are buckled together; a bracket is arranged between the rear shell and the front shell, and the transmission gear is rotatably arranged between the bracket and the front shell; the two elastic connecting pieces connected to the first outer binding band and the second outer binding band are arranged in the slide ways, cover plates fixedly connected with the supports are respectively arranged in the slide ways corresponding to each elastic connecting piece, guide channels are formed between the cover plates and the corresponding support parts, and the two elastic connecting pieces are respectively arranged in the guide channels on the corresponding sides.

By adopting the technical scheme, 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 inner-layer binding belt structure; the first inner bandage and the second inner bandage of the inner bandage structure are respectively inserted into the bandage adjusting device and are in transmission connection with the bandage adjusting device. When the double-layer bandage type head-wearing equipment is worn, the bandage adjusting device adjusts the first inner bandage and the second inner bandage to slide in opposite directions, so that the space between the inner bandage structure and the bandage adjusting device is tightly adjusted, the inner bandage structure and the bandage adjusting device fix the whole double-layer bandage type head-wearing equipment on the head of a user, and because elastic connecting pieces are respectively arranged among the first outer bandage, the second outer bandage and the bandage adjusting device, the front and back adjusting mechanism is pressed against the inner bandage structure through the elasticity of the two elastic connecting pieces; when the eye distance needs to be adjusted, the distance between the main machine and the inner-layer binding band structure is adjusted through the front-back adjusting mechanism, so that the eye distance is adjusted, and the weight and the volume of the main machine are increased due to the fact that an independent adjusting structure does not need to be arranged on the main machine; the host is pulled to one side far away from the inner bandage structure to separate the front-back adjusting mechanism from the inner bandage structure, so that the host can be turned upwards and separated from the eyes of a user, and the whole double-layer bandage type head-mounted equipment can interact with the outside without taking down the whole double-layer bandage type head-mounted equipment from the head of the user; the double-layer binding-belt type head-wearing equipment has the functions of overturning and adjusting the eye distance, is simple in structure and convenient to adjust, can reduce the weight and the volume of a host, and can prevent the host from falling after overturning.

Drawings

FIG. 1 is a schematic perspective view of a two-layer bandage-type headgear of the present invention;

FIG. 2 is a schematic view of an exploded view of the double layer bandage style headgear of the present invention;

FIG. 3 is a schematic perspective view of a strap adjustment mechanism of the double-layered strap headgear of the present invention;

FIG. 4 is a schematic cross-sectional view of a strap adjustment mechanism of the double-layered strap headgear of the present invention;

FIG. 5 is an enlarged schematic view of the structure at A in FIG. 4;

FIG. 6 is a schematic exploded view of the strap adjustment mechanism of the double-layered strap headgear of the present invention;

FIG. 7 is a schematic perspective view of the press clutch mechanism of the double-layer bandage type headgear of the present invention;

FIG. 8 is a schematic cross-sectional view of the press clutch mechanism of the double-layered bandage headgear of the present invention;

FIG. 9 is a schematic cross-sectional view of the sliding sleeve portion of the press clutch mechanism of the double strap headgear of the present invention;

FIG. 10 is an exploded view of the press clutch mechanism of the double strap headgear of the present invention;

FIG. 11 is an enlarged schematic view of FIG. 10 at B;

FIG. 12 is a schematic perspective view of the fore-aft adjustment mechanism of the double-layered bandage headgear of the present invention;

FIG. 13 is a schematic cross-sectional view of the fore-aft adjustment mechanism of the double-layered bandage headgear of the present invention;

wherein, 10, the housing, 11, the rear housing, 12, the front housing, 13, the bracket, 14, the mounting shaft, 15, the mounting cylinder, 16, the ring gear structure, 17, the cover plate, 20, the transmission gear, 21, the limit strip, 30, the adjustment wheel, 31, the pawl structure, 32, the arc plate, 33, the chuck, 34, the ring body, 35, the shifting block, 36, the elastic arm, 37, the pawl, 40, the button, 41, the pressure rod, 411, the guide chute, 42, the clutch gear, 43, the fastener, 44, the limit structure, 45, the limit block, 451, the clamping groove, 46, the axial chute, 47, the steering groove, 471, the first guide wall, 48, the return chute, 481, the second guide wall, 482, the third guide wall, 50, the sliding sleeve, 501, the plug hole, 502, the through groove, 503, the recessed area, 51, the connecting piece, 511, the mounting rod part, 512, the connecting rod part, 513, the limit position, 52, the pressure plate structure, 521, the mounting plate, 522. support arm, 523, clamp plate, 53, elasticity reset piece, 60, the host computer, 61, main body shell, 62, lens cone subassembly, 63, sleeve, 64, installation piece, 641, mounting hole, 70a, first outer bandage, 70b, second outer bandage, 71, elastic connecting piece, 80a, first inner bandage, 80b, second inner bandage, 80c, brim of a hat, 81, first drive rack, 82, second drive rack, 83, socket body, 90, front and back adjustment mechanism, 91, knob, 92, support piece, 921, the body of rod, 922, joint, 93, pivot.

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.

Fig. 1 to 13 are schematic structural views of a double-layer bandage-type head-wearing device of the present invention, wherein fig. 1 shows a schematic perspective structural view of the double-layer bandage-type head-wearing device of the present invention, fig. 2 shows a schematic exploded structural view of the double-layer bandage-type head-wearing device of the present invention, fig. 3 shows a schematic perspective structural view of a strap adjustment device of the double-layer bandage-type head-wearing device of the present invention, fig. 4 shows a schematic sectional structural view of the strap adjustment device of the double-layer bandage-type head-wearing device of the present invention, fig. 5 shows an enlarged structural view at a in fig. 4, fig. 6 shows a schematic exploded structural view of the strap adjustment device of the double-layer bandage-type head-wearing device of the present invention, fig. 7 shows a schematic perspective structural view of a press clutch mechanism of the double-layer bandage-type head-wearing device of the present invention, fig. 8 shows a schematic sectional, fig. 9 is a schematic sectional structural view showing a sliding sleeve portion of a pressing clutch mechanism of a double-layer bandage type head-wearing device of the present invention, fig. 10 is a schematic exploded structural view showing the pressing clutch mechanism of the double-layer bandage type head-wearing device of the present invention, fig. 11 is an enlarged structural view at B of fig. 10, fig. 12 is a schematic perspective structural view showing a front-rear adjustment mechanism of the double-layer bandage type head-wearing device of the present invention, and fig. 13 is a schematic sectional structural view showing the front-rear adjustment mechanism of the double-layer bandage type head-wearing device of the present invention. For the sake of convenience, only the parts relevant to the present invention are shown in the drawings.

When the head-mounted device is worn, one side of the head-mounted device close to the head of a user is defined as inner side, and the other side of the head-mounted device far away from the head of the user is defined as outer side. As can be seen from fig. 1 to 13, the double-layer bandage type headgear includes a main body 60, first and second

outer bandages

70a and 70b respectively connected to opposite sides of the main body 60, and bandage adjusting devices, and elastic connectors 71 are respectively provided between the first and second

outer bandages

70a and 70b and the bandage adjusting devices; the main machine 60 further comprises an inner layer binding belt structure arranged between the first outer binding belt 70a and the second outer binding belt 70b, and a front-back adjusting mechanism 90 arranged between the main machine 60 and the inner layer binding belt structure and used for adjusting the distance between the main machine 60 and the inner layer binding belt structure, wherein the front-back adjusting mechanism 90 is installed on the main machine 60 and is abutted against the inner layer binding belt structure; the first inner bandage 80a and the second inner bandage 80b of the inner bandage structure are respectively inserted into the bandage adjusting device and are in transmission connection with the bandage adjusting device, specifically, the inner bandage structure further comprises a brim 80c arranged corresponding to the host 60, the first inner bandage 80a and the second inner bandage 80b are respectively arranged on two opposite sides of the brim 80c, the first inner bandage 80a and the second inner bandage 80b can be in an integrated structure with the brim 80c and can also be in a split structure, and the front and back adjusting mechanism 90 abuts against the inner bandage structure. Specifically, the first and second

outer straps

70a, 70b are made of a hard material and have rigidity; the first and second

inner straps

80a and 80b are made of a flexible material and have flexibility.

Because the first inner bandage 80a and the second inner bandage 80b of the inner bandage structure are respectively inserted into the bandage adjusting device and are in transmission connection with the bandage adjusting device, when the double-layer bandage type head-wearing equipment is worn, the bandage adjusting device adjusts the first inner bandage 80a and the second inner bandage 80b to slide oppositely, so that the space between the inner bandage structure and the bandage adjusting device is tightly adjusted, and the inner bandage structure and the bandage adjusting device fix the whole double-layer bandage type head-wearing equipment on the head of a user; since the first and second

outer straps

70a and 70b are respectively connected to opposite sides of the main body 60, and the elastic connection members 71 are respectively provided between the first and second

outer straps

70a and 70b and the strap adjusting means, the support member 92 of the front and rear adjusting mechanism 90 is pressed against the visor 80c of the inner strap structure by the elastic force of the two elastic connection members 71 provided corresponding to the first and second

outer straps

70a and 70 b. When the eye distance needs to be adjusted, the distance between the main machine 60 and the inner-layer binding structure is adjusted through the front-back adjusting mechanism 90, so that the eye distance is adjusted, and the main machine 60 does not need to be provided with a separate adjusting structure, so that the weight and the volume of the main machine 60 are increased. The main machine 60 is pulled to one side far away from the inner bandage structure to separate the front-back adjusting mechanism 90 from the inner bandage structure, so that the main machine 60 can be turned upwards and separated from the eyes of a user, 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 binding-belt type head-wearing device disclosed by the embodiment of the invention has the functions of overturning and adjusting the eye distance, is simple in structure and convenient to adjust, can reduce the weight and the volume of the main machine 60, and can prevent the main machine 20 from falling down after overturning.

In the embodiment of the present invention, as can be seen from fig. 2, 3, 4, 5 and 6, the strap adjusting device comprises a housing 10 enclosing a slideway, a transmission gear 20 rotatably mounted in the slideway, an adjusting wheel 30 rotatably mounted at the rear side of the housing 10 and coaxially arranged with the transmission gear 20, a locking structure is arranged between the adjusting wheel 30 and the housing 10, and a pressing clutch mechanism is arranged between the adjusting wheel 30 and the transmission gear 20; the first and

second transmission racks

81 and 82 are respectively provided on the portions of the first and second

inner straps

80a and 80b inserted into the slide ways, and the first and

second transmission racks

81 and 82 are respectively engaged with the upper and lower sides of the transmission gear 20. The pressing clutch mechanism is pressed down to be connected with the adjusting wheel 30 and the transmission gear 20, the transmission gear 20 is driven to rotate by rotating the adjusting wheel 30, the first inner bandage 80a and the second inner bandage 80b can be driven to slide oppositely by the first transmission rack 81 and the second transmission rack 82 which are meshed with the transmission gear 20, the first inner bandage 80a and the second inner bandage 80b and the bandage adjusting device are tightened, and the whole double-layer bandage type head-wearing equipment can be fixed on the head of a user through a connected structure formed by an inner layer bandage structure and the bandage adjusting device; the pressing clutch mechanism is pressed again to be separated from the transmission gear 20, the transmission gear 20 can rotate freely, the first inner bandage 80a and the second inner bandage 80b can slide out to the outer side of the slideway by directly pulling the bandage adjusting device, and therefore the whole double-layer bandage type head-wearing equipment can be directly taken down from the head of a user.

Specifically, the anti-loose structure comprises an annular gear structure 16 which is arranged on the shell 10 and is coaxial with the adjusting wheel 30, and a pawl structure 31 which is used for fixing the adjusting wheel 30 and is coaxial with the adjusting wheel 30, wherein the pawl structure 31 comprises a ring body 34 and a plurality of shifting blocks 35 which are arranged along the circumferential direction of the ring body 34 at intervals, each limiting plate 23 is connected with an elastic arm 36 which extends along the circumferential direction, and the pawl 37 is correspondingly arranged on one end of each elastic arm 36 which is far away from the limiting plate 23 and is meshed with the annular gear structure 16. When the adjusting wheel 30 rotates, the pawl structure 31 and the adjusting wheel 30 rotate, and the adjusting wheel 30 can only rotate in one direction but not rotate in the opposite direction through the limiting effect between the pawl 37 and the inner gear ring structure 16, so that the first inner bandage 80a and the second inner bandage 80b can be prevented from loosening after being tightened.

In order to facilitate the rotation connection of the adjusting wheel 30 and the shell 10, at least two arc-shaped plates 32 are arranged on one side of the adjusting wheel 30 close to the shell 10 at intervals along the circumferential direction, clamping heads 33 are respectively arranged on one side of each arc-shaped plate 32 far away from the adjusting wheel 30, and the at least two arc-shaped plates 32 are positioned on the same circumference; the rotatable connection to the housing 10 can be realized by forming a ring structure from at least two arc-shaped plates 32, and the adjustment wheel 30 can be connected to the housing 10 by means of a clamping head 33.

In the embodiment of the present invention, as can be seen from fig. 7, 8, 9, 10 and 11, the pressing clutch mechanism includes a pressing rod 41, a button 40 fixed on one end of the pressing rod 41, a pressing rod clutch structure fixed on the other end of the pressing rod 41, a sliding sleeve 50 sleeved on the pressing rod 41, and an elastic reset member 53 disposed between the button 40 and the sliding sleeve 50, a limit structure 44 is disposed on the pressing rod 41, a connecting member 51 for cooperating with the limit structure 44 is disposed on the sliding sleeve 50, and a gear clutch structure cooperating with the pressing rod clutch structure is disposed on the transmission gear 20; an axial channel is provided at the middle of the adjustment wheel 30, the button 40 is slidably mounted in the axial channel and cannot rotate relative to the adjustment wheel 30, the sliding sleeve 50 is fixedly mounted in a slide defined by the housing 10, and generally, platforms are provided at opposite sides of the axial channel, and the button 40 is configured to be matched with the platform, so as to prevent the relative rotation between the button 40 and the adjustment wheel 30.

Specifically, the connecting member 51 includes a mounting rod portion 511 mounted on the sliding sleeve 50, a limiting rod portion 513 for cooperating with the limiting structure 44, and a rod portion 512 connected between the mounting rod portion 511 and the limiting rod portion 513. Usually, the mounting rod portion 511, the link portion 512, and the limiting rod portion 513 are formed by bending a metal rod, the sliding sleeve 50 is correspondingly provided with an insertion hole 501, and the mounting rod portion 511 is inserted into the insertion hole 501.

The limiting structure 44 comprises a limiting block 45 arranged on the pressing rod 41, a clamping groove 451 arranged on one side of the limiting block 45 close to the button 40, an axial sliding groove 46 arranged on the part of the pressing rod 41 on one side of the limiting block 45 far away from the button 40, a steering groove 47 arranged at one side edge of the limiting block 45 and communicated with the axial sliding groove 46, and a return sliding groove 48 arranged at the other side edge of the limiting block 45 and communicated with the axial sliding groove 46, a first guide wall 471 for guiding the limiting rod part 513 into the clamping groove 451 is arranged at the end part of the steering groove 47 close to the clamping groove 451, a second guide wall 481 for guiding the limiting rod part 513 out of the clamping groove 451 and into the return chute 48 is correspondingly arranged at the clamping groove 451, a third guide wall 482 for preventing the stopper rod portion 513 from sliding back into the slot 451 is provided at an end of the return chute 48 near the slot 451, the groove base of the return link 48 at the end close to the axial link 46 is higher than the groove base of the axial link 46.

When the button 40 is in a pressed state, the pressure rod clutch structure and the gear clutch structure are combined together, the limiting rod part 513 is clamped in the clamping groove 451, the adjusting wheel 30 is rotated, the transmission gear 20 can be driven to rotate through the pressing clutch mechanism, the first inner binding band 80a and the second inner binding band 80b can be driven to slide in opposite directions through the first transmission rack 81 and the second transmission rack 82 which are meshed with the transmission gear 20, the inner binding band structure and the binding band adjusting device can be tightened, the anti-loosening structure is arranged between the adjusting wheel 30 and the shell 10, the rotation can be prevented after the tightening, the anti-loosening effect can be achieved, and the double-layer binding band type head-wearing equipment can be firmly worn on the head of a user; when the double-layer bandage type head-wearing device needs to be loosened or taken down from the head of a user, the press button 40 can be pressed to enable the press rod clutch structure to be separated from the gear clutch structure, the limiting rod part 513 is located in the axial sliding groove 46, the transmission gear 20 can rotate freely, the first inner bandage 80a and the second inner bandage 80b can slide out to the outer side of the sliding way by directly pulling the bandage adjusting device, and therefore the whole double-layer bandage type head-wearing device can be taken down from the head of the user directly.

For easy understanding, the operation of the limiting rod 513 when the button 40 is pressed is described as follows with reference to fig. 9, 10 and 11:

when the button 40 is pressed, the pressing rod 41 moves axially close to the transmission gear 20, the limit rod part 513 slides relatively along the axial sliding groove 46 and slides into the steering groove 47, then slides relatively along the steering groove 47 and slides over the first guide wall 471, the button 40 is released, under the action of the elastic reset piece 53, the pressing rod 41 moves axially away from the transmission gear 20, under the guiding and limiting action of the first guide wall 471, the limit rod part 513 slides into the clamping groove 451, at the moment, the button 40 is in a pressed state, because the sliding sleeve 50 is fixedly arranged in a sliding way enclosed by the shell 10, and the installation rod part 511 of the connecting piece 51 is arranged on the sliding sleeve 50, the pressing rod clutch structure arranged at the end part of the pressing rod 41 can be combined with the gear clutch structure arranged on the transmission gear 20 through the limiting action of the sliding sleeve 50 and the connecting piece 51, and the adjusting wheel 30 can drive the transmission gear 20 to rotate, the first transmission rack 81 and the second transmission rack 82 which are meshed with the transmission gear 20 can drive the first inner bandage 80a and the second inner bandage 80b to slide oppositely, so that the inner bandage structure and the bandage adjusting device can be tightened; when the button 40 is pressed again, the pressing rod 41 generates axial movement close to the transmission gear 20 again, the limiting rod part 513 limited in the clamping groove 451 is separated from the clamping groove 451 under the guiding action of the second guide wall 481 and slides into the return sliding groove 48 along the second guide wall 481, because the third guide wall 482 used for preventing the limiting rod part 513 from sliding back into the clamping groove 451 is correspondingly arranged at the end part of the return sliding groove 48, when the button 40 is loosened, under the elastic force action of the elastic resetting piece 53, the pressing rod 41 generates axial movement in the direction away from the transmission gear 20, the limiting rod part 513 generates relative sliding along the return sliding groove 48 until sliding into the axial sliding groove 46, the pressing rod clutch structure at the end part of the pressing rod 41 is separated from the gear clutch structure on the transmission gear 20, the transmission gear 20 can rotate freely, and the first inner binding band 80a and the second inner binding band 80b slide out towards the outer side by directly pulling the binding band adjusting device, this allows the entire double-strapped headset to be removed directly from the user's head.

As can be seen from fig. 7 and 10, the pressure lever clutch structure is a clutch gear 42, which includes a cylindrical body and a plurality of clutch teeth disposed on the outer peripheral side of the cylindrical body at intervals in the circumferential direction, the clutch gear 42 is fixed to the end of the pressure lever 41 by a fastening member 43, and the fastening member 43 is typically a screw.

Correspondingly, as can be seen from fig. 5, an axial hole is formed in one side of the transmission gear 20 close to the pressure rod 41, the gear clutch structure is arranged in the axial hole and comprises a plurality of limiting strips 21 arranged on the inner side wall of the axial hole at intervals along the circumferential direction, and when the clutch gear 42 is combined with the transmission gear 20, each clutch tooth is respectively inserted between a group of two adjacent limiting strips 21.

In order to prevent the clutch teeth of the clutch gear 42 from being unable to be inserted, the opposite two sides of one end of each clutch tooth far away from the pressure rod 41 are respectively provided with a clutch tooth guide inclined plane, so that one end of each clutch tooth far away from the pressure rod 41 forms a tip shape; limiting strip guide inclined planes are also respectively arranged on the two opposite sides of the corresponding end of each limiting strip 21, so that the end part of each limiting strip 21 is in a tip shape.

As can be seen from fig. 7, 8, 9, 10 and 11, in order to facilitate the arrangement of the limiting structure 44 and ensure the connection and disconnection between the limiting rod 513 and the limiting structure 44, a groove is formed on the pressing rod 41, and the limiting block 45 is arranged in the groove; a pressing plate structure 52 for pressing the limit rod part 513 inside the limit structure 44 is installed on the sliding sleeve 50.

Specifically, a guide chute 411 is arranged on the corresponding side surface of the pressure lever 41, and the guide chute 411 extends to the upper part of the limiting block 45; the pressing plate structure 52 includes a mounting plate 521 fixed on the sliding sleeve 50, a supporting arm 522 connected to the mounting plate 521 and inserted into the sliding sleeve 50, and a pressing plate 523 connected to the supporting arm 522, wherein the pressing plate 523 is slidably mounted in the guiding sliding slot 411 and disposed corresponding to the limiting rod 513. Usually, a recessed area 503 is provided on the outer peripheral side of the slide sleeve 50, a through groove 502 communicating with the inside of the slide sleeve 50 is provided on the slide sleeve 50, the mounting plate 521 is locked in the recessed area 503, the support arm 522 and the pressing plate 523 are inserted into the slide sleeve 50 through the through groove 502, and the through groove 502 and the recessed area 503 are also communicated for the convenience of installation.

In the embodiment of the present invention, the housing 10 includes a rear shell 11 and a front shell 12 that are fastened together, and for convenience of installation, a bracket 13 is disposed between the rear shell 11 and the front shell 12; the transmission gear 20 is rotatably installed between the bracket 13 and the front case 12.

Specifically, a mounting shaft 14 is arranged on one side, close to the front shell 12, of the support 13, a mounting cylinder 15 is arranged on one side, close to the support 13, of the front shell 12, an axial hole of the transmission gear 20 is sleeved on the mounting shaft 14, one side, close to the front shell 12, of the transmission gear 20 is inserted into the mounting cylinder 15, an axial through hole is formed in the mounting shaft 14, the pressing rod 41 penetrates through the axial through hole and is inserted into the axial hole of the transmission gear 20, the pressing rod clutch structure is arranged in the axial hole of the transmission gear 20, and the plurality of limiting strips 21 in the axial hole of the transmission gear 20 are arranged on one side; the portion of the first inner strap 80a inserted into the slide and the portion of the second inner strap 80b inserted into the slide are disposed between the bracket 13 and the front case 12.

In the embodiment of the present invention, two elastic connecting members 71 connected to the first and second

outer straps

70a and 70b are disposed on the elastic band in the slideway enclosed by the housing 10, and since the strap adjusting device is generally disposed in an arc shape to adapt to the head of a user, in order to facilitate the contraction of the elastic band, a cover plate 17 fixedly connected to the bracket 13 is disposed in the slideway enclosed by the housing 10 corresponding to each elastic connecting member 71, a guide channel is formed between the cover plate 17 and the corresponding bracket 13, and the elastic connecting members 71 are disposed in the corresponding guide channels.

In the embodiment of the present invention, as shown in fig. 1, 2, 12 and 13, the front-back adjusting mechanism 90 includes a knob 91 rotatably mounted on the main body 60, and a supporting member 92 coaxially disposed with the knob 91, wherein the supporting member 92 is in threaded transmission connection with the knob 91, and one end of the supporting member 92 close to the inner strap structure is fixed to the inner strap structure, specifically, to the visor 80c of the inner strap structure. The knob 91 of the front and rear adjusting mechanism 90 is rotated, the knob 91 and the supporting member 92 are relatively rotated, but the supporting member 92 is inserted and fixed on the visor 80c of the inner bandage structure and cannot relatively rotate relative to the visor 80c of the inner bandage structure, so that the supporting member 92 can move towards the direction close to the knob 91 or move towards the direction far away from the knob 91 when the knob 91 is rotated, and the distance between the main machine 60 and the inner bandage structure is changed. Specifically, the knob 91 is rotated to move the support 92 away from the knob 91, and the distance between the main unit 60 and the inner-layer binding structure is increased by pushing the support 92, so that the two elastic connecting pieces 71 are further stretched while the eye distance is increased and the distance between the main unit 60 and the inner-layer binding structure is increased; the knob 91 is rotated reversely to move the supporting member 92 to a direction close to the knob 91, the length of the supporting member 92 between the main unit 60 and the inner layer binding structure is gradually reduced, and the distance between the main unit 60 and the inner layer binding structure is also gradually reduced under the pulling force of the two elastic connecting pieces 71, so that the eye distance is reduced.

As can be seen in fig. 12 and 13, the supporting member 92 includes a lever 921, and a snap 922 provided on an end of the lever 921 near the visor 80 c; the brim 80c is provided with a slot 83 corresponding to the snap 922, after the snap 922 is snapped into the slot 83, the rod 921 cannot rotate along the axial direction, and usually, the slot 83 may be surrounded by a retaining wall protruding from the brim 80c or formed by a recess formed in the brim 80 c.

In order to facilitate the threaded transmission between the support member 92 and the knob 91, a rotating shaft 93 is fixedly mounted on the knob 91 and is coaxial with the knob, and the rod body 921 is in threaded transmission connection with the rotating shaft 93; specifically, an axial threaded hole is formed in one end of the rod body 921, which is far away from the clamping connector 922, an axial hole is formed in the rotating shaft 93, a threaded rod (not shown in the figure) in threaded transmission connection with the threaded hole is fixedly installed 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 provided on an end of the rod 921 away from the clamping head 922, an internal thread adapted to the external thread may be provided on an inner side wall of the axial hole, and the rod 921 is in threaded transmission connection with the axial hole of the rotating shaft 93.

In order to facilitate the knob 91 to be rotatably mounted on the main body 60, the main body 60 includes a housing 61, and a lens barrel assembly 62 fixedly mounted in a cavity defined by the housing 61, an elongated hole is provided at a middle position of an upper side wall of the housing 61, a mounting block 64 is provided at a side of the elongated hole close to the visor 80c, the knob 91 is rotatably mounted between the mounting block 64 and the lens barrel assembly 62, and a portion of the knob 91 extends to an outer side of the housing 61 through the elongated hole, and the mounting block 64 may be fixedly mounted with the lens barrel assembly 62 or fixedly mounted with the housing 61. Specifically, the barrel assembly 62 is provided with a sleeve 63 corresponding to the rotating shaft 93, the mounting block 64 is provided with a mounting hole 641 corresponding to the rotating shaft 93, and two end portions of the rotating shaft 93 are rotatably mounted in the sleeve 63 and the mounting hole 641, respectively.

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 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 further 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 installed on the main machine and abuts against the inner layer binding belt structure; and the first inner bandage and the second inner bandage of the inner bandage structure are respectively inserted into the bandage adjusting device and are in transmission connection with the bandage adjusting device.

2. The double-layer bandage type head-wearing equipment as claimed in claim 1, wherein the front-back adjusting mechanism comprises a knob rotatably mounted on the main machine, and a supporting member coaxially arranged with the knob, the supporting member is in threaded transmission connection with the knob, and one end of the supporting member close to the inner bandage structure is fixedly inserted on the inner bandage structure.

3. The double-layer bandage type head-wearing equipment according to claim 1, wherein the bandage adjusting device comprises a shell enclosing a slideway, a transmission gear rotatably mounted in the slideway, an adjusting wheel rotatably mounted at the rear side of the shell and coaxially arranged with the transmission gear, a locking structure is arranged between the adjusting wheel and the shell, and a pressing clutch mechanism is arranged between the adjusting wheel and the transmission gear; the parts of the first inner binding band and the second inner binding band inserted into the slideway are respectively provided with a first transmission gear and a second transmission rack which are meshed with the upper side and the lower side of the transmission gear.

4. The double-layer bandage type head-wearing equipment according to claim 3, wherein the pressing clutch mechanism comprises a pressing rod, a button fixed on one end of the pressing rod, a pressing rod clutch structure fixed on the other end of the pressing rod, a sliding sleeve sleeved on the pressing rod and fixedly installed in the slideway, and an elastic reset piece arranged between the button and the sliding sleeve, a limit structure is arranged on the pressing rod, a connecting piece matched with the limit structure is arranged on the sliding sleeve, and a gear clutch structure matched with the pressing rod clutch structure is arranged on the transmission gear; an axial channel is arranged in the middle of the adjusting wheel, and the button is arranged in the axial channel and can slide along the axial direction.

5. The double-layer bandage type head-wearing equipment as claimed in claim 4, wherein the connecting piece comprises a mounting rod part mounted on the sliding sleeve, a limiting rod part used for being matched with the limiting structure, and a connecting rod part connected between the mounting rod part and the limiting rod part; the sliding sleeve is correspondingly provided with an inserting hole, and the mounting rod part is inserted in the inserting hole.

6. The double-layer bandage type head-wearing device as claimed in claim 5, wherein the limiting structure comprises a limiting block disposed on the pressing rod, a clamping groove disposed on one side of the limiting block close to the button, an axial sliding groove disposed on a portion of the pressing rod on one side of the limiting block away from the button, a steering groove disposed at one side of the limiting block and communicated with the axial sliding groove, and a return sliding groove disposed at the other side of the limiting block and communicated with the axial sliding groove, wherein a first guide wall is disposed at an end portion of the steering groove close to the clamping groove, a second guide wall is correspondingly disposed at the clamping groove, a third guide wall is disposed at an end portion of the return sliding groove close to the clamping groove, and a groove bottom of the return sliding groove at the end portion close to the axial sliding groove is higher than a groove bottom of the axial sliding groove.

7. The double-layer bandage type head-wearing equipment according to claim 4, wherein the pressure rod clutch structure is a clutch gear, and comprises a cylinder body, and a plurality of clutch teeth which are arranged on the outer peripheral side of the cylinder body at intervals along the circumferential direction; the transmission gear is close to be equipped with the axial hole on one side of depression bar, gear separation and reunion structure sets up in the axial hole, include along the circumference interval setting a plurality of spacing on the inside wall of axial hole, every the separation and reunion tooth is kept away from the relative both sides of the one end of depression bar are equipped with separation and reunion tooth direction inclined plane respectively, at every also be equipped with spacing direction inclined plane respectively on the relative both sides of spacing correspondence end.

8. The double-layer bandage type headgear of claim 6 wherein a groove is provided on the compression bar and the stop block is provided in the groove; and a pressure plate structure used for pressing the limiting rod part is arranged on the sliding sleeve.

9. The double-layer bandage type headgear of claim 8 wherein a guide runner is provided on a corresponding side of the compression bar, the guide runner extending above the stop block; the pressing plate structure comprises a mounting plate fixed on the sliding sleeve, a supporting arm connected to the mounting plate and inserted into the sliding sleeve, and a pressing plate connected to one end of the supporting arm inserted into the sliding sleeve, wherein the pressing plate is slidably mounted in the guide sliding groove and corresponds to the limiting rod part.

10. A double layer bandage headgear as claimed in any one of claims 1 to 9 wherein the shell comprises a rear shell, a front shell which are snap-fitted together; a bracket is arranged between the rear shell and the front shell, and the transmission gear is rotatably arranged between the bracket and the front shell; the two elastic connecting pieces connected to the first outer binding band and the second outer binding band are arranged in the slide ways, cover plates fixedly connected with the supports are respectively arranged in the slide ways corresponding to each elastic connecting piece, guide channels are formed between the cover plates and the corresponding support parts, and the two elastic connecting pieces are respectively arranged in the guide channels on the corresponding sides.