CN109001909B

CN109001909B - Head-mounted equipment

Info

Publication number: CN109001909B
Application number: CN201811148748.0A
Authority: CN
Inventors: 刘俊杰; 李林森; 梁栋
Original assignee: Goertek Techology Co Ltd
Current assignee: Goertek Techology Co Ltd
Priority date: 2018-09-29
Filing date: 2018-09-29
Publication date: 2024-02-02
Anticipated expiration: 2038-09-29
Also published as: CN109001909A

Abstract

The invention discloses a head-mounted device which belongs to the technical field of wearable devices and comprises a binding belt body, a host machine, two support arms with adjustable lengths, and two connecting rods matched with the two support arms respectively, wherein one end of each connecting rod is connected with two ends of the binding belt body in a rotating way, the other end of each connecting rod is connected with one end of the corresponding support arm in a rotating way, and the other end of each support arm is connected with two ends of the host machine respectively, so that the binding belt body can be overturned and folded above or below the host machine. When the head-mounted equipment is stored, only the binding band body is required to be rotated upwards or downwards, and then the binding band body and the connecting rod and the supporting arm are rotated relatively, so that the binding band body can be turned over and folded to the upper part or the lower part of the host machine, and the size is reduced so as to be stored conveniently. When the bandage is used again, the bandage body is only required to be reversely rotated to be unfolded to a use state. And the length of the support arm is adjustable, so that the use requirements of users with different head circumference can be met.

Description

Head-mounted equipment

Technical Field

The invention relates to the technical field of wearable equipment, in particular to head-mounted equipment.

Background

Wearable electronic devices are increasingly appearing in the work and life of people, and head-mounted devices such as VR (virtual reality) and AR (augmented reality) mainly comprise a head-mounted part and a host. The host part is mainly used for realizing functions such as virtual reality or augmented reality, and the head wearing part is used for wearing the host part on the head of a user. The head wear generally comprises two modes of a binding belt type and a head hoop type, and the clamping force of the binding belt type head wear generally adjusts the clamping force of the head wear to the head of a user by adjusting the relative positions of the magic hooks and the magic wool attached on the binding belt; the head band type head wear generally adjusts the head band clamping force of the user by adjusting the rear head-wearing roller. However, for strap-on headsets, when adjusted for different users through the magic hook and the magic wool, the operation is more inconvenient, and the occupation space is larger and the carrying and the packaging are inconvenient.

Disclosure of Invention

In view of the above, the present invention is directed to a headset, which can effectively solve the problems of large space occupation, and inconvenient carrying and packaging.

In order to achieve the above purpose, the present invention provides the following technical solutions:

the utility model provides a head-mounted device, includes bandage body, host computer, two adjustable support arms of relative setting and respectively with two support arm complex two connecting rods, each the one end of connecting rod respectively with the both ends of bandage body rotate to be connected, each the other end of connecting rod respectively with the one end of corresponding support arm rotates to be connected, each the other end of support arm respectively with the both ends of host computer are connected, so that the bandage body can overturn folding to the top or the below of host computer.

Preferably, in the above head-mounted device, the support arm includes a housing and a slide rail slidably mounted in the housing, the slide rail is rotationally connected with the connecting rod, and an elastic member is connected between the slide rail and the housing, so that the elastic member is stretched when the slide rail is pulled out relative to the housing.

Preferably, in the above head-mounted device, the housing is provided with a fixing portion, one end of the elastic member is fixedly connected with the housing, the other end of the elastic member is an elastic belt with a movable end, and the movable end is optionally detachably and fixedly connected with different positions of the fixing portion so as to adjust the pretightening force.

Preferably, in the above head-mounted device, the fixing portion is disposed on an outer wall surface of the housing, the housing has a through hole, and the movable end is penetrated out of the through hole and is detachably and fixedly connected with the fixing portion.

Preferably, in the above head-mounted device, the sliding rail is provided with an elastic band via hole, and the elastic band passes through the elastic band via hole to be stretched when the sliding rail is pulled out relative to the housing.

Preferably, in the above head-mounted device, one end of the elastic band is fixedly connected with an inner wall of the housing located inside the sliding rail, and the movable end passes through the elastic band via hole along the inside of the sliding rail, then is folded back along the outside of the sliding rail, passes through the via hole, and is then detachably and fixedly connected with the fixing portion.

Preferably, in the above head-mounted device, the sliding rail includes a plastic layer and a sliding rail metal insert embedded in the plastic layer.

Preferably, in the above head-mounted device, a damping member is provided on a connection surface between the two ends of each connecting rod and the support arm and the strap body, so that the strap body can be folded over and over or under the main unit and locked.

Preferably, in the above head-mounted device, the arm is used for being rotationally connected with the host, and a damping component is disposed on a connection surface of the arm and the host.

Preferably, in the above head-mounted device, a first circular arc-shaped limit groove with an angle being a first preset central angle is formed at one end of the connecting rod connected with the support arm, the sliding rail is provided with a first protrusion matched with the first limit groove, and the support arm can rotate forward and backward relative to the support arm until the first protrusion respectively abuts against two ends of the first limit groove to reach a rotation limit;

the connecting rod with the convex second spacing groove of angle for the second preset central angle is seted up to the one end of bandage body coupling, the bandage body have with second spacing groove complex second arch, the connecting rod can be relative the bandage body forward and backward rotate to the second arch respectively with the both ends in second spacing groove offset and reach the rotation limit.

The head-wearing equipment provided by the invention comprises a bandage body, a host machine, two support arms which are arranged oppositely and two connecting rods which are matched with the two support arms respectively. Wherein, the length of the support arm is adjustable; one end of each connecting rod is respectively connected with two ends of the bandage body in a rotating way, the other end of each connecting rod is respectively connected with one end of a corresponding support arm in a rotating way, and the other end of each support arm is respectively connected with two ends of the host machine, so that the bandage body can be overturned and folded to the upper part or the lower part of the host machine.

When the head-mounted device provided by the invention is used for accommodating the head-mounted device, only the binding band body is required to be rotated upwards or downwards, and the binding band body and the connecting rod and the support arm are rotated relatively, so that the binding band body can be turned over and folded above or below the host machine, and the volume is reduced so as to be convenient for accommodating. When the bandage is used again, the bandage body is only required to be reversely rotated to be unfolded to a use state. And the length of the support arm is adjustable, so that the use requirements of users with different head circumference can be met.

In a preferred embodiment, the support arm includes a housing and a sliding rail slidably mounted in the housing, the sliding rail being rotatably connected to the connecting rod, the sliding rail being capable of sliding in the housing of the support arm, so that when the user wears the support arm, the user first pulls the strap body with external force to move the sliding rail outward and stretch the elastic member, and the space enclosed by the strap body is increased so as to wear the support arm on the head. After the elastic piece is worn on the head, the bandage body is released, and the sliding rail retracts under the elastic action of the elastic piece and drives the bandage body to retract inwards so as to adapt to the head circumference of a user. Simultaneously, the elastic piece can provide elastic buffering, makes the user wear more comfortablely. The product can be conveniently worn or taken down only by pulling the bandage body, the operation is simple and convenient, and the elastic buffer is provided, so that the wearing comfort is improved.

In another preferred embodiment, the shell is provided with a fixing part, one end of the elastic piece is fixedly connected with the shell, the other end of the elastic piece is an elastic belt with a movable end, and the movable end is optionally detachably and fixedly connected with different positions of the fixing part so as to adjust the pretightening force. After the user wears the binding belt on the head, the elastic belt can be tensioned or loosened by adjusting the fixed connection position of the movable end of the elastic belt and the fixed part of the shell, thereby adjust the pretightning force of elastic belt to reach the quick regulation of bandage clamping force size, further satisfy different user's user demand, promote user experience.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of an exploded structure of a headset according to one embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of the slide rail and elastic belt of FIG. 1 engaged;

FIG. 3 is a schematic view of the elastic band of FIG. 1 in a relaxed state;

FIG. 4 is a schematic view of the elastic belt in FIG. 1 in a contracted state;

FIG. 5 is a schematic view of the strap body of FIG. 1 prior to folding;

FIG. 6 is a schematic view of the strap body of FIG. 1 after being folded;

FIG. 7 is a schematic view of the arm of FIG. 1;

FIG. 8 is a schematic view of the sliding rail of FIG. 1;

FIG. 9 is a schematic view of the connecting rod of FIG. 1;

FIG. 10 is a schematic view of the strap metal insert of FIG. 1;

FIG. 11 is a schematic diagram of a part of the host in FIG. 1;

fig. 12 is a schematic diagram of a folding path.

The figures are marked as follows:

the main machine 1, the top binding belt 2, the O-shaped sealing ring 3, the support arm main shell 4, the sliding rail 5, the elastic belt 6, the support arm shell 7, the machine tooth screw 8, the metal gasket 9, the elastic metal gasket 10, the connecting rod 11 and the binding belt body 12;

the elastic band through hole 13, the sliding rail metal insert 14, the first limit groove 15, the first bulge 16, the second limit groove 17, the second bulge 18, the third limit groove 19, the third bulge 20 and the binding band metal insert 21;

the first preset central angle alpha, the second preset central angle beta, the bandage body rotation path A and the connecting rod rotation path B.

Detailed Description

The embodiment of the invention discloses a head-mounted device which can meet the wearing requirements of different users and is convenient to store.

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1, fig. 1 is a schematic exploded view of a strap according to an embodiment of the present invention.

In one implementation, the present invention provides a headgear including a strap body 12, a main unit 1, two arms disposed opposite to each other, and a link 11 connected to the two arms, respectively.

The length of the support arm can be adjusted, and the specific support arm can comprise a telescopic structure for adjusting the length, or can also be slidably provided with a sliding rail for adjusting the length.

The two connecting rods are respectively matched with the two support arms, one ends of the two connecting rods 11 are respectively connected with the two ends of the binding belt body 12 in a rotating way, the other ends of the two connecting rods 11 are respectively connected with one ends of the corresponding support arms in a rotating way, and the other ends of the support arms are respectively connected with the two ends of the host machine 1. That is, one end of the band body 12 is rotatably connected to one end of a link 11, the other end of the link 11 is rotatably connected to one end of a support arm, and the other end of the support arm is connected to one end of the main unit 1. The other end of the binding band body 12 is rotationally connected with the other connecting rod 11, the other end of the connecting rod 11 is rotationally connected with one end of the other support arm, and the other end of the support arm is connected with the other end of the host machine 1.

The length of the link 11 may be set as needed, and is not particularly limited herein. Preferably, the length of the connecting rod 11 is such that the main band body 12 can be turned over to be located above the main unit 1 and the inner side wall is attached to the front wall of the main unit 1.

When the head-mounted device provided by the invention is used for accommodating the head-mounted device, only the bandage body 12 is required to be rotated upwards or downwards, and the bandage body 12 and the connecting rod 11 and the support arm are rotated relatively, so that the bandage body 12 can be turned over and folded above or below the host computer 1, and the volume is reduced so as to be convenient for accommodating. When the bandage is used again, the bandage body 12 is only required to be reversely rotated to be unfolded to a use state. And the length of the support arm is adjustable, so that the use requirements of users with different head circumference can be met.

Further, the arm comprises a housing and a slide rail 5 slidably mounted in the housing. That is, the strap body 12 is connected to the main unit 1 by a bracket, and the connection relationship between the arm and the main unit 1 is not particularly limited herein. The sliding rail 5 is slidably mounted in the housing, specifically, a sliding groove is formed in the housing, the sliding rail 5 is mounted in the sliding groove to move along the sliding groove, and in order to prevent the sliding rail 5 from falling out of the housing, a blocking portion for preventing the sliding rail 5 from falling out is arranged on the housing, specifically, at the end of the sliding groove. The stroke of the sliding rail 5 can be specifically set according to the needs, and the preferable setting is 50mm-60mm, so that the requirements of users with different head circumferences can be met.

The sliding rail 5 is rotationally connected with the connecting rod 11, and an elastic piece is connected between the sliding rail 5 and the shell, so that the elastic piece is stretched when the sliding rail 5 is pulled out relative to the shell. The elastic restoring force that the elastic component was stretched to produce can provide elasticity cushioning effect when wearing on the one hand to promote user's wearing comfort level, on the other hand when the user takes off the bandage, bandage body 12 can be followed slide rail 5 and pulled back initial position voluntarily under the restoring force effect of elastic component, so as to accomodate. The pre-tightening force of the specific elastic member can be set according to needs, and is not particularly limited herein.

Specifically, when the bandage body 12 is pulled, the slide rail 5 can be pulled to move outwards through the connecting rod 11, and when the external force is released, the slide rail 5 retracts under the action of the elastic body and can also drive the bandage body 12 to retract through the connecting rod 11. And then the user pulls the bandage body 12 outwards and drives the slide rail 5 to move outwards, thereby realizing the increase of the space surrounded by the bandage body 12 so as to adapt to the user with larger head circumference. Specifically, the support arms at two ends of the bandage body 12 all comprise the slide rails 5, and when the bandage body 12 is pulled by external force, the slide rails 5 at two ends move outwards simultaneously, so that the circumference adjustment is more effectively performed. Of course, the support arm at one end of the main unit 1 may be provided with the slide rail 5 to adjust the circumference, and the other end may not be provided with the slide rail.

When the user wears, the external force pulls the bandage body 12 at first to enable the sliding rail 5 to move outwards, and stretches the elastic piece, so that the space enclosed by the bandage body 12 is increased, and the user can wear the bandage on the head conveniently. After the head is worn, the external force releases the bandage body 12, and the sliding rail 5 retracts under the elastic action of the elastic piece and drives the bandage body 12 to retract inwards so as to adapt to the head circumference of a user. Simultaneously, the elastic piece can provide elastic buffering, makes the user wear more comfortablely. In conclusion, the binding band of the head-mounted device provided by the invention can be used for conveniently wearing or taking down products, has elastic buffering and improves wearing comfort.

Specifically, the shell is provided with a fixing part, one end of the elastic piece is fixedly connected with the shell, the other end of the elastic piece is an elastic belt 6 of a movable end, and the movable end is optionally detachably and fixedly connected with different positions of the fixing part so as to adjust the pretightening force. That is, the elastic piece is the elastic band 6, the both ends of elastic band 6 are respectively with casing fixed connection, and wherein at least one end is the loose end, the loose end optional with the detachable fixed connection of the different positions of fixed part, or the detachable fixed connection of the different positions of loose end optional with the fixed part, and then the user wears the bandage behind the head, can be through the fixed connection position of the fixed part of adjusting the loose end of elastic band 6 and casing, with taut or loosen elastic band 6, thereby adjust the pretightning force of elastic band 6, with the quick regulation that reaches bandage clamping force size, further satisfy different user's user demand, promote user experience. The fixed part can be the magic wool specifically, then the expansion end of elastic belt 6 corresponds to have the magic to collude, colludes the laminating position with the magic wool through the adjustment magic and in order to adjust the pretightning force of elastic belt 6, perhaps the fixed part also can be the magic to collude, then the expansion end of corresponding elastic belt 6 has the magic wool. The continuous adjustment of the movable end and the fixed position of the shell can be realized through the cooperation of the hook and the hook, so that the adjustment of the pretightening force is more diversified.

The fixing part can also comprise a plurality of buckles according to the requirement, the movable part is correspondingly provided with a clamping head, and the clamping head is optionally connected with different buckles to adjust the pretightening force of the elastic belt 6. Or the movable part is provided with a plurality of chucks, the fixed part is a buckle, and the buckle is optionally connected with different chucks to adjust the pretightening force of the elastic belt 6. The structure of the particular clasp and chuck is not specifically limited herein, with reference to the prior art.

Further, the fixed part is arranged on the outer wall surface of the shell, the shell is provided with a through hole, and the movable end penetrates out of the through hole and is detachably and fixedly connected with the fixed part. Through setting up fixed part in the outer wall surface of casing to the adjustment when being convenient for the user to wear, the operation is more convenient. Specifically, the housing includes a main arm housing 4 and a housing arm 7, which are detachably and fixedly connected to facilitate the installation of the slide rail 5. The main shell is internally provided with a chute, and the slide rail 5 is slidably arranged in the chute. The outer wall surface of the shell is provided with a fixing part, which can be particularly magic wool.

Further, the slide rail 5 is provided with an elastic band via hole 13, and the elastic band 6 passes through the elastic band via hole 13 to be stretched when the slide rail 5 is pulled out relative to the housing. That is, both ends of the elastic belt 6 are fixedly connected with the housing, the middle of the elastic belt 6 passes through the elastic belt through hole 13 of the sliding rail 5, and when the sliding rail 5 moves outwards, the elastic belt 6 is stretched to provide elastic restoring force. The structure is simple, and the elastic belt 6 integrally deforms when the sliding rail 5 moves, so that stable restoring force can be provided. The slide rail 5 is reliably connected with the elastic belt 6, and the regulation failure of the binding belt caused by disconnection of the slide rail and the elastic belt is not easy to occur. A specific elastic strap via 13 may be provided in the center of the slide rail 5. According to the requirement, the middle part of the elastic belt 6 can be fixedly connected with the sliding rail 5, for example, through screw connection and the like, and the elastic piece can be stretched when the sliding rail 5 moves outwards.

In order to exert the optimal performance of the elastic belt 6, one end of the elastic belt 6 is fixedly connected with the inner wall of the shell positioned at the inner side of the sliding rail 5, the movable end extends forwards along the inner side of the sliding rail 5 to pass through the elastic belt through hole 13, then backwards folds back along the outer side of the sliding rail 5 and is fixedly connected with the fixing part in a detachable mode after penetrating out of the through hole. That is, when the elastic belt 6 passes through the elastic belt through hole 13 in a U shape and the sliding rail 5 moves, the two ends of the elastic belt 6 are directly dragged to synchronously stretch, and when the bandage body 12 is released, the elastic belt 6 retracts to more stably pull back the sliding rail 5. Preferably, the movable end of the elastic belt 6 passes through the elastic belt through hole 13, is folded back along the outer side of the sliding rail 5 and is penetrated out of the through hole, and is connected with the fixing part along the outer wall surface of the shell, so that the elastic belt 6 is S-shaped, and the pretightening force of the elastic belt 6 is regulated by a user and the sliding rail 5 and the elastic belt 6 act more stably.

Referring to fig. 5 and 6, in fig. 5, the movable end of the elastic belt 6 is connected to the left side of the fixed portion, and the elastic belt 6 is under slight tension, and the tension applied to the elastic belt 6 when the slide rail 5 slides rightward by the distance L increases. In fig. 6, the movable end of the elastic belt 6 is connected to the right side of the fixed portion, and at this time, the pretightening force of the elastic belt 6 is greater than that of the elastic belt 6 in fig. 5, and the tensile force applied to the elastic belt 6 increases more when the slide rail 5 slides rightward by the same distance L. Furthermore, different users can correspondingly adjust the position of the movable end according to the needs to adjust the pretightening force of the elastic band 6, so as to achieve the aim of adjusting the wearing clamping force.

In the above embodiments, the sliding rail 5 includes a plastic layer and a sliding rail metal insert 14 embedded in the plastic layer. The plastic layer has good durability, and the metal insert can provide enough strength, so that the composite structure can combine the advantages of the two. In order to reduce the weight of the whole equipment, the slide rail metal insert 14 is preferably provided with weight reducing holes, and the shape and number of the weight reducing holes can be set correspondingly according to the strength requirement, and are not particularly limited herein.

On the basis of the above embodiments, damping components are arranged on the connecting surfaces of the two ends of each connecting rod 11 and the supporting arm and the bandage body 12 respectively, so that the bandage body 12 can be turned over and folded above or below the host machine 1 and locked. Through damping part's setting for when bandage body 12 overturns, the rotation of bandage body 12 relative connecting rod 11 and the rotation of connecting rod 11 relative support arm all need overcome damping part's damping force, and then can lock the bandage body 12 relative connecting rod 11 and the relative support arm of connecting rod 11 respectively in the optional position of rotation stroke, thereby be convenient for adjust the angle of bandage body 12 in order to accomodate. In the case that the support arm is provided with the slide rail 5, both ends of each link 11 are respectively rotatably connected with the slide rail 5, and a damping member is provided on the connection surface.

Further, the support arm is rotatably connected with the host machine 1, and a damping component is arranged on the connection surface of the support arm and the host machine 1. When the strap body 12 is turned over, the strap body 12 rotates relative to the connecting rod 11, the connecting rod 11 rotates relative to the sliding rail 5, and the support arm rotates relative to the main unit 1, so that the head-mounted device can be folded to a minimum storage state. And the damping component is arranged on the connection surface of the support arm and the host machine 1, and the rotation of the support arm and the host machine 1 needs to overcome the damping force of the damping component, so that the support arm can be locked at any position of the rotation stroke relative to the host machine 1. In the case of an arm comprising a housing and a slide rail 5, the housing of the arm is rotatably connected to the main machine 1.

Among the damping members, the damping members between the two ends of the connecting rod 11 and the arm and the band body 12 may be metal gaskets 9 and elastic metal gaskets 10, and the damping members between the arm and the main machine 1 may be O-shaped sealing rings 3. Specifically, the metal pad 9 and the elastic metal washer 10 can be locked to the link 11 by the machine screw 8, and the elastic metal washer 10 is in a pressed state to provide a constant retarding force when the link 11 rotates. The O-ring 3 is compressed after the arm is assembled with the host 1 to provide a retarding force when the arm rotates relative to the host 1.

Further, a first limit groove 15 is formed at one end, connected with the support arm, of the connecting rod 11, the first limit groove 15 is in a circular arc shape with an angle being a first preset central angle alpha, the support arm is provided with a first protrusion 16 matched with the first limit groove 15, and the connecting rod 11 can rotate forward and backward relative to the support arm until the first protrusion 16 is respectively propped against two ends of the first limit groove 15 to reach a rotation limit. The specific first preset central angle α may be 100 degrees. The first protrusion 16 of the support arm can rotate in the first limiting groove 15, and the forward and reverse rotation reaches the rotation limit when the forward and reverse rotation reaches the abutment of the two ends of the first limiting groove 15 respectively, namely when the first preset central angle alpha is 100 degrees, the rotation angle of the first protrusion 16 of the support arm in the first limiting groove 15 is 100 degrees. In the case of an arm comprising a slide rail, the first protrusion 16 is arranged on the slide rail 5. In the case of a slide rail 5 having a slide rail metal insert 14, the first projection 16 is disposed on the slide rail metal insert 14.

Further, a second limiting groove 17 is formed at one end of the connecting rod 11 connected with the bandage body 12, the second limiting groove 17 is in a circular arc shape with an angle being a second preset central angle β, the bandage body 12 is provided with a second protrusion 18 matched with the second limiting groove 17, and the connecting rod 11 can rotate forward and backward relative to the bandage body 12 until the second protrusions 18 respectively abut against two ends of the second limiting groove 17 to reach a rotation limit. The specific second preset central angle β may be 80 degrees. The first protrusion 16 of the strap body 12 can rotate in the second limiting groove 17, and the forward and reverse rotation reaches the rotation limit when the first protrusion and the reverse rotation abut against the two ends of the second limiting groove 17 respectively, that is, when the second preset central angle β is 80 degrees, the angle at which the second protrusion 18 of the strap body 12 can rotate in the second limiting groove 17 is 80 degrees. Preferably, the strap body 12 includes a plastic part and a strap metal insert 21 embedded in the plastic part, and the second protrusion 18 is disposed on the strap metal insert 21.

The end of the arm connected with the host 1 is provided with a third bulge 20 matched with a third limit groove 19 of the host 1 according to the requirement, the third limit groove 19 is in a circular arc shape with a third preset central angle, the support arm can rotate forward and backward relative to the host 1 until the third protrusions 20 respectively abut against the two ends of the third limiting groove 19 to reach the rotation limit. Specifically, the third preset central angle is 30 degrees, that is, the rotatable angle of the third protrusion 20 in the third limiting groove 19 is ±15 degrees. It should be noted that, the first preset central angle α, the second preset central angle β, and the third preset central angle may be set according to the length of the connecting rod 11, the size of the strap body 12, and the like, and the starting position and the limiting position of each rotation range defined by the limiting groove and the protrusion may also be set correspondingly according to the wearing and storage requirements, which is not limited herein. Preferably, the initial positions of the connecting rod 11 and the strap body 12 are positions corresponding to normal wearing.

Preferably, the end part of one end of the connecting rod 11, which is rotationally connected with the bandage body 12, is in a circular arc shape, and the shape of the corresponding end part of the bandage body 12 is consistent with that of the circular arc shape, that is, the relative rotation part of the bandage body 12 and the sliding rail 5 is designed into the circular arc shape with the same rotation track of the bandage body 12, so that when the bandage body 12 and the sliding rail 5 relatively rotate, the relative rotation part of the bandage body 12 and the sliding rail 5 is ensured to be connected smoothly without a break difference.

The headgear preferably includes a top strap 2 connected at one end to the middle of the rear end of the strap body 12 and at the other end to the top of the main unit 1, as required.

In this specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different manner from other embodiments, so that identical and similar parts of each embodiment are mutually referred to.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The head-mounted device is characterized by comprising a bandage body (12), a host machine (1), two support arms with adjustable lengths and two connecting rods (11) which are oppositely arranged and are matched with the two support arms respectively, wherein one end of each connecting rod (11) is respectively and rotatably connected with two ends of the bandage body (12), the other end of each connecting rod (11) is respectively and rotatably connected with one end of the corresponding support arm, and the other end of each support arm is respectively connected with two ends of the host machine (1) so that the bandage body (12) can be overturned and folded above or below the host machine (1);

the support arm comprises a shell and a sliding rail (5) which is slidably arranged in the shell, the sliding rail (5) is rotationally connected with the connecting rod (11), and an elastic piece is connected between the sliding rail (5) and the shell so as to stretch the elastic piece when the sliding rail (5) is pulled out relative to the shell;

the shell is provided with a fixing part, one end of the elastic piece is fixedly connected with the shell, the other end of the elastic piece is an elastic belt (6) with a movable end, and the movable end is optionally detachably and fixedly connected with different positions of the fixing part so as to adjust the pretightening force;

the fixing part is arranged on the outer wall surface of the shell, the shell is provided with a through hole, and the movable end penetrates out of the through hole and is detachably and fixedly connected with the fixing part;

elastic band through holes (13) are formed in the sliding rail (5), and the elastic band (6) penetrates through the elastic band through holes (13) to be stretched when the sliding rail (5) is pulled out relative to the shell.

2. The head-mounted device according to claim 1, wherein one end of the elastic band (6) is fixedly connected with the inner wall of the shell located at the inner side of the sliding rail (5), and the movable end passes through the elastic band through hole (13) along the inner side of the sliding rail (5), is folded back along the outer side of the sliding rail (5) and is detachably and fixedly connected with the fixing part after passing out of the through hole.

3. The head set according to claim 1, wherein the slide rail (5) comprises a plastic layer and a slide rail metal insert (14) embedded in the plastic layer.

4. A head-mounted device according to any one of claims 1-3, wherein damping means are provided on the connection surfaces of the two ends of each connecting rod (11) with the arm and the strap body (12), respectively, so that the strap body (12) can be folded upside down or downside the main unit (1) and locked.

5. The head-mounted device according to claim 4, characterized in that the arm is rotatably connected to the main unit (1), and that a damping member is provided on the connection surface of the arm and the main unit (1).

6. The head-mounted device according to claim 4, wherein a first limit groove (15) with an arc shape and a first preset central angle is formed in one end, connected with the support arm, of the connecting rod (11), the support arm is provided with a first bulge (16) matched with the first limit groove (15), and the connecting rod (11) can rotate forwards and backwards relative to the support arm until the first bulge (16) respectively props against two ends of the first limit groove (15) to reach a rotation limit;

the connecting rod (11) with arc second spacing groove (17) of angle for second default central angle are seted up to the one end that bandage body (12) is connected, bandage body (12) have with second spacing groove (17) complex second arch (18), connecting rod (11) can be relative bandage body (12) forward and backward rotate extremely second arch (18) respectively with the both ends of second spacing groove (17) offset and reach the rotation limit.