CN218889826U

CN218889826U - Light cervical collar

Info

Publication number: CN218889826U
Application number: CN202021722504.1U
Authority: CN
Inventors: 王江; 季金凤; 赵凯
Original assignee: Jiangsu Alphay Medical Device Co ltd
Current assignee: Jiangsu Alphay Medical Device Co ltd
Priority date: 2020-08-17
Filing date: 2020-08-17
Publication date: 2023-04-21
Anticipated expiration: 2030-08-17

Abstract

A lightweight neck brace is disclosed wherein the lightweight neck brace includes a head support portion and a support portion, wherein the lightweight neck brace has an adjusted state in which the head support portion can only be adjusted in a direction away from the support portion so that the height position of the supported head cannot be lowered, and a free state in which the head support portion can be adjusted in any direction away from or toward the support portion.

Description

Light cervical collar

Technical Field

The present utility model relates to neck brace assemblies, and more particularly to a lightweight brace.

Background

The neck serves to connect the head to the torso, through which the heavier head is supported. The neck portion can flexibly rotate left and right or up and down, and the neck portion bears pressure generated by the weight of the head portion. If the head is kept in a fixed posture for a long time, a great burden is placed on the neck, for example, people who work on a table for a long time often feel soreness of the neck. More seriously, the head is kept in a bad posture for a long time, for example, a student population, during the development, the head can be excessively close to a book or a desk, so that vision diseases such as myopia and the like occur, and the neck is also subjected to improper pressure.

The neck brace can hold the neck at an angle and distribute the weight of the head to the torso because the neck brace itself for supporting the head is supported to the shoulders, so that the burden on the neck can be reduced. However, current cervical braces are often designed for patients with neck or head diseases requiring rehabilitation, which results in: on one hand, the size is heavy, the head is supported on the shoulder by the heavy size and can not be flexibly rotated, on the other hand, the neck support can not be adjusted, the angle between the head and the neck is kept fixed, and the head is difficult to lower or raise after the neck support is worn by a user, so that the movement of the head is limited, and the rehabilitation and health care effects are achieved. Obviously, the main target group of this type of brace is the neck or the head of a patient already suffering from a disease. This type of brace is difficult to apply when a healthy person wants to protect the neck.

Disclosure of Invention

It is an object of the present utility model to provide a lightweight brace that can be conveniently worn on the neck of a user and in which the relative positions of the user's head and neck can be conveniently adjusted.

It is another object of the present utility model to provide a lightweight brace that is capable of supporting a user's head and having the head angled relative to the neck so that the head and neck relationship of the user can be maintained in the correct posture by the lightweight brace.

It is a further object of the present utility model to provide a lightweight brace that can be used to prevent myopia.

It is another object of the present utility model to provide a lightweight brace, wherein the lightweight brace includes a head support and a support, wherein the head support is supported on the support, wherein the support is capable of being supported on the torso to reduce pressure on the neck caused by head weight.

It is another object of the present utility model to provide a lightweight brace in which the head support portion and the support portion of the lightweight brace form an included angle therebetween, and the size of the included angle can be adjusted to change the head and neck relationship of the user by adjusting the angle of the head with respect to the neck.

It is another object of the present utility model to provide a lightweight neck brace, wherein the head support and the support are maintained in an adjusted state after external force for adjusting the angles of the head support and the support is removed.

It is another object of the present utility model to provide a lightweight cervical brace in which the head support portion of the lightweight cervical brace is capable of supporting the chin and is configured to have a massaging effect to massage the chin.

It is another object of the present utility model to provide a lightweight neck brace in which the head support portion of the lightweight neck brace can be folded, the support portion can be folded, and the head support portion and the support portion can be folded over each other to be received in a smaller size.

According to one aspect of the present utility model there is provided a lightweight brace, wherein the lightweight brace comprises:

a head support, wherein the head support is adapted to be supported on the head;

a support portion, wherein the support portion comprises a first support arm and a second support arm, wherein the first support arm and the second support arm extend outwards from two ends of the head support portion to the first support arm and the second support arm to be connected with each other so as to form a stable triangular support structure, wherein the head support portion can be supported on the support portion, and the support portion is suitable for being supported on the trunk portion; and

And two adjusting parts, wherein the two adjusting parts are positioned at the joint of the head bearing part and the first and second support arms of the support part, and the head bearing part is rotatably connected to the support part by the adjusting parts so that the magnitude of an included angle formed between the head bearing part and the support part is adjustable, wherein the lightweight neck brace has an adjusting state in which the head bearing part can be adjusted only in a direction away from the support part, and a free state in which the head bearing part can be adjusted in a direction away from the support part or in a direction close to the support part.

According to one embodiment of the utility model, the adjusting part comprises an outer rotating member and an inner rotating member, wherein the outer rotating member is mounted on the head supporting part, the inner rotating member is mounted on the supporting part, wherein the inner wall of the outer rotating member surrounds an accommodating space, the inner rotating member is accommodated in the accommodating space, the inner wall of the outer rotating member is protruded to form at least two unidirectional teeth, the inner rotating member is clamped on the outer rotating member, the inner rotating member and the outer rotating member can rotate relatively and rotate unidirectionally, and in the adjusting state, the inner rotating member is limited to rotate unidirectionally relative to the outer rotating member, and in the free state, the inner rotating member can be released to rotate freely relative to the outer rotating member.

According to one embodiment of the utility model, the adjusting part comprises an outer rotating member and an inner rotating member, wherein the outer rotating member is mounted on the supporting part, the inner rotating member is mounted on the head supporting part, wherein the inner wall of the outer rotating member surrounds an accommodating space, the inner rotating member is accommodated in the accommodating space, the inner wall of the outer rotating member is protruded to form at least two unidirectional teeth, the inner rotating member is clamped on the outer rotating member, the inner rotating member and the outer rotating member can rotate relatively and rotate unidirectionally, and in the adjusting state, the inner rotating member is limited to rotate unidirectionally relative to the outer rotating member, and in the free state, the inner rotating member can be released to rotate freely relative to the outer rotating member.

According to one embodiment of the utility model, the inner rotating member comprises a fixed seat and a connecting arm, wherein the connecting arm has a connecting end and a free end, the connecting end of the connecting arm is connected to the fixed seat, the free end of the connecting arm is close to the tooth of the outer rotating member, in the adjusting state, the free end of the connecting arm is clamped to the tooth and can only be unidirectionally separated from one tooth and then clamped to the next tooth, in the free state, the free terminal of the connecting arm is separated from the tooth, so that the outer rotating frame and the inner rotating member can rotate freely.

According to one embodiment of the utility model, the adjustment part further comprises an adjustment member, wherein the inner rotation member is limited to the adjustment member, in the adjustment state the adjustment member limits the inner rotation member to press the connecting arm against the teeth of the outer rotation member, in the free state the adjustment member limits the inner rotation member to keep the connecting arm and the teeth of the outer rotation member spaced apart, the lightweight collar being switchable between the adjustment state and the free state by changing the position of the adjustment member.

According to one embodiment of the utility model, the connecting arm is elastically connected to the holder.

According to one embodiment of the present utility model, the number of the connecting arms is two, the fixing base has a first end portion and a second end portion, one of the connecting arms is connected to the first end portion and extends toward the second end portion, the other connecting arm is connected to the second end portion and extends toward the first end portion, and the two connecting arms are respectively located on two sides of the fixing base.

According to one embodiment of the utility model, the direction of extension of the free end of the connecting arm from the connecting end coincides with the direction of rotation of the inner rotation member.

According to an embodiment of the present utility model, the adjusting member includes a first limiting wing, a second limiting wing and two limiting grooves, wherein the two connecting arms are respectively and correspondingly limited to one of the limiting grooves, and when the position of the adjusting member is changed, the first limiting wing and the second limiting wing respectively drive the positions of the two connecting arms to change, so that the light collar is changed between the adjusting state and the free state.

According to one embodiment of the utility model, the adjustment member is mounted to the head support, and is moved outwardly when the head support is pulled outwardly, so that the lightweight neck brace changes from the adjustment position to the free position.

According to one embodiment of the present utility model, the adjusting part further includes an adjusting part mounting housing and an elastic connection member, wherein the adjusting part mounting housing forms a mounting space, the adjusting member is located in the mounting space, the elastic connection member is located between the adjusting member and the adjusting part mounting housing, the head supporting part is movably inserted into the adjusting part mounting housing back and forth, when the head supporting part is pulled outward, the adjusting member can be driven by the head supporting part to move outward, and the elastic connection member is pressed, so that the connection arm of the inner rotating member can be released from the outer rotating member to be in the free state, and when the force applied to the head supporting part disappears, the adjusting member is automatically reset under the action of the elastic connection member to be in the adjusting state.

According to one embodiment of the utility model, the lightweight neck brace further comprises a fixing portion, wherein the fixing portion extends between two ends of the head support portion, respectively, to form a wearing channel with adjustable size.

According to one embodiment of the utility model, the head support comprises a first support arm and a second support arm, wherein the first support arm is pivotably connected to the second support arm to be folded towards the second support arm.

According to one embodiment of the utility model, the first support arm of the support section is pivotably connected to the second support arm to be folded towards the second support arm.

Drawings

FIG. 1 is a schematic view of a lightweight brace according to a preferred embodiment of the utility model.

Fig. 2 is an exploded view of the lightweight collar according to the above preferred embodiment of the present utility model.

Fig. 3 is a schematic view of the application of the lightweight collar according to the above preferred embodiment of the present utility model.

Fig. 4 is an adjustment schematic view of the lightweight collar in an adjustment state according to the above preferred embodiment of the present utility model.

Fig. 5 is a schematic view of another application of the lightweight collar according to the above preferred embodiment of the present utility model.

Fig. 6 is a schematic view illustrating the adjustment of the lightweight collar in a free state according to the above preferred embodiment of the present utility model.

Fig. 7 is a schematic view of a variant of the lightweight collar according to the above preferred embodiment of the present utility model.

Fig. 8 is a schematic view of another implementation of the lightweight collar according to the above preferred embodiment of the present utility model.

Detailed Description

The following description is presented to enable one of ordinary skill in the art to make and use the utility model. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art. The basic principles of the utility model defined in the following description may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the utility model.

It will be appreciated by those skilled in the art that in the present disclosure, the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc. refer to an orientation or positional relationship based on that shown in the drawings, which is merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore the above terms should not be construed as limiting the present utility model.

It will be understood that the terms "a" and "an" should be interpreted as referring to "at least one" or "one or more," i.e., in one embodiment, the number of elements may be one, while in another embodiment, the number of elements may be plural, and the term "a" should not be interpreted as limiting the number.

Referring to fig. 1 to 6, a lightweight brace 1 according to a preferred embodiment of the utility model is illustrated.

The lightweight neck brace 1 can support the head and trunk of a user to reduce the pressure of the weight of the head on the neck, and the lightweight neck brace 1 itself can be designed to be lightweight and can be adapted to the needs of the user to be adjusted. The lightweight brace 1 is very convenient to use relative to previous one-piece clumsy braces.

In detail, the lightweight neck brace 1 comprises a head support 10 and a support 20, wherein the head support 10 is adapted to support the head of a user in a desired position, the head support 10 being capable of being supported by the support 20, the support 20 being capable of being supported by the torso of the user, for example being capable of being supported by the chest, shoulders and/or abdomen of the user.

It will be appreciated that the lightweight collar 1 can be applied not only to humans but also to animals, as long as adaptations are made to the head support 10 and the support 20, which modifications remain within the scope of the utility model.

The lightweight collar 1 forms a wearing channel 100 in which a user's neck can be held in the wearing channel 100 while wearing the lightweight collar 1. The wearing channel 100 is sized to be adjustable to accommodate different users. Alternatively, the user's head may be held in the wearing channel 100 while wearing the lightweight collar 1.

Referring to fig. 1 and 2, the support portion 20 includes a first support arm 21 and a second support arm 22, wherein the first support arm 21 and the second support arm 22 extend outwardly from the head support portion 10, respectively, and are connected to each other at one end. In detail, one end of the first support arm 21 is connected to the head supporting part 10, one end of the second support part 20 is connected to the head supporting part 10, and the other end of the first support arm 21 is connected to the other end of the second support part 20. The first support arm 21, the second support arm 22, and the head support 10 of the support part 20 form a stable triangle support structure so as to stably support the head on the trunk.

The support 20 can form an angle with the head support 10, and the angle can be adjustable. The lightweight neck brace 1 further comprises at least one adjusting portion 30, wherein the adjusting portion 30 is disposed at a connection portion between the support portion 20 and the head support portion 10, so that an angle between the support portion 20 and the head support portion 10 can be adjusted by the adjusting portion 30, and the head support portion 10 and the support portion 20 can be kept in the adjusted position. Preferably, in the preferred example of the lightweight neck brace 1 shown in fig. 1 to 6, the lightweight neck brace 1 includes two adjustment portions 30, one of the adjustment portions 30 is provided at the junction of the first support arm 21 and the head support portion 10, and the other adjustment portion 30 is provided at the junction of the second support arm 22 and the head support portion 10.

The head support 10 can be folded toward the support 20 so that the lightweight neck brace 1 can be folded into a smaller size, thus making the lightweight neck brace 1 portable. The head supporter 10 can also be supported at a fixed angle to the support 20, so that the head supporter 10 can support the head at a desired angle.

Further, the lightweight neck brace 1 has a myopia preventing effect. When a user sits in front of a desk or computer, the user's head tends to approach the desk or computer, and for a long time, the user may become nearsighted. The head support 10 and the support 20 of the lightweight neck brace 1 can be adjusted at a certain angle and fixed at a certain angle to prevent the head from approaching a desk or a computer, thereby preventing myopia.

Still further, the head support 10 and the support 20 of the lightweight neck brace 1 are configured to be unidirectionally adjusted. When the lightweight brace 1 is worn on the body of a user, the head support 10 cannot be adjusted toward the support 20 so that the head cannot be lowered, thereby helping to protect the vision of the user. The head support 10 can be adjusted in a direction away from the support 20 to suit different postures and use requirements of the user.

It should be noted that another advantage of the head support 10 and the support 20 being provided with a unidirectional adjustment is that when a head is supported on the head support 10, there is a tendency to move downward, since the head support 10 cannot move toward the support 20, the head support 10 is limited to move only in a direction away from the support 20, thereby reducing the possibility of the head gradually moving downward unknowingly due to insufficient strength of connection of the head support 10 and the support 20.

For the lightweight brace 1, the lightweight brace 1 has an adjusted state and a free state. In the adjusted state, referring to fig. 3 and 4, the head supporter 10 of the lightweight neck brace 1 is unidirectionally adjustable with respect to the support portion 20 and can be fixed in the adjusted state, and the head supporter 10 cannot move toward the support portion 20 so that the head is stably supported to the head supporter 10. In the free state, referring to fig. 5 and 6, the head support 10 of the lightweight neck brace 1 can be adjusted toward the support 20, and also can be adjusted in a direction away from the support 20. That is, the rotation direction of the head support 10 is not limited. The head support 10 may be adjusted to fold over the support 20. It will be appreciated that the provision of the head support 10 and the support 20 in accordance with the present utility model as a one-way adjustment means that the head support 10 of the lightweight brace 1 is only permitted one-way adjustment relative to the support 20 when the lightweight brace 1 is in the adjusted condition.

By adjusting the adjustment portion 30, the lightweight brace 1 can be switched between the adjustment state and the free state. In particular, when no external force is applied to the adjustment portion 30, the lightweight brace 1 is in the adjustment state, and accordingly, when an external force is applied to the adjustment portion 30, the lightweight brace 1 can be switched from the adjustment state to the free state.

In detail, referring to fig. 2, the adjusting part 30 includes an outer rotating member 31 and an inner rotating member 32, wherein the outer rotating member 31 is disposed on the supporting part 20, the inner rotating member 32 is disposed on the head supporting part 10, and the inner rotating member 32 is rotatably connected to the outer rotating member 31. By the rotation of the outer rotary member 31 and the inner rotary member 32, the magnitude of the angle between the support portion 20 and the head support portion 10 is adjusted. Alternatively, the outer rotating member 31 is provided to the head supporting portion 10, and the inner rotating member 32 is provided to the supporting portion 20.

With continued reference to fig. 2, the head supporting part 10 has two ends corresponding to each other, wherein the inner rotating members 32 of the two adjusting parts 30 are respectively provided at each end of the head supporting part 10, the outer rotating members 31 of the two adjusting parts 30 are respectively provided at the end of the first supporting arm 21 and the end of the second supporting arm 22, and wherein each inner rotating member 31 is respectively rotatably connected to each outer rotating member 31, such that each end of the head supporting part 10 is respectively provided at the end of the first supporting arm 21 and the end of the second supporting arm 22 of the supporting part 20 through each adjusting part 30. Further, the outer rotating member 31 is formed with an accommodating space 310, wherein the inner rotating member 32 is located in the accommodating space 310 of the outer rotating member 31. The outer rotating member 31 has an inner wall, wherein at least a portion of the inner wall is recessed to form at least two unidirectional tooth grooves 311, the inner rotating member 32 can be rotated to be engaged with the unidirectional tooth grooves 311 of the outer rotating member 31, and when the outer rotating member 31 or the inner rotating member 32 is applied with a force, the inner rotating member 32 can be unidirectionally disengaged from one unidirectional tooth groove 311 and then engaged with the next unidirectional tooth groove 311.

In more detail, when the lightweight brace 1 is in the adjusted state, the inner rotating member 32 is originally engaged with one of the one-way slots 311 of the outer rotating member 31 so that the head support portion 10 is kept fixed relative to the supporting portion 20. A force is applied to the inner rotary member 32 or the outer rotary member 31 such that the inner rotary member 32 is disengaged from one of the one-way slots 311 and then enters the next one-way slot 311, the head supporter 10 returns to a fixed state with respect to the support 20 and the position of the head supporter 10 with respect to the support 20 has been adjusted. The angle between the head support 10 and the support 20 is enlarged.

The outer rotary member 31 may be implemented as one spline ring, and the one-way spline 311 is formed at the inner wall of the outer rotary member 31. The number of the one-way slots 311 is plural, and the one-way slots 311 are symmetrically arranged.

The inner rotating member 32 is formed with at least one connecting arm 321, wherein the connecting arm 321 can be engaged with the one-way slot 311 of the outer rotating member 31. The number of the connection arms 321 may be two or more. Adjacent connecting arms 321 are kept at a certain interval. In the present embodiment, the two connecting arms 321 are implemented as two, the two connecting arms 321 can be respectively engaged with the one-way slots 311 of the outer rotor 31, and the two connecting arms 321 are implemented as center symmetry.

In detail, the inner rotating member 32 includes a fixing base 322 and the connecting arms 321, wherein two of the connecting arms 321 respectively extend from the fixing base 322, and the fixing base 322 is fixed to the head supporting portion 10. The connecting arm 321 has a connecting end 3211 and a free end 3212 corresponding to the connecting end 3211, wherein the connecting end 3211 of the connecting arm 321 is connected to the fixing base 322, and the free end 3212 of the connecting arm 321 abuts against the unidirectional spline 311 of the outer rotating member 31. Preferably, the connecting end 3211 of the connecting arm 321 integrally extends from the fixing base 322 in a suspended manner, so as to allow the connecting arm 321 to deform toward the fixing base 322 when being stressed and to recover to an initial state when the stress is removed.

The connecting arm 321 is formed with a supporting surface 3213, and the supporting surface 3213 may be formed at the free end 3212 of the connecting arm 321, where the supporting surface 3213 may be abutted against the unidirectional spline 311 of the outer rotating member 31. The supporting surface 3213 may be a slope, and the slope of the supporting surface 3213 may be able to be engaged with the inclined surface of the one-way slot 311 of the outer rotary member 31.

The inner rotating member 32 is mounted to the outer rotating member 31, and the connecting arm 321 is pressed and abutted against the inner wall of the outer rotating member 31. When the inner rotating member 32 and the outer rotating member 31 rotate relatively, the inner rotating member 32 can be rotated to the supporting surface 3213 of the connecting arm 321 and can be engaged with the unidirectional tooth slot 311 of the outer rotating member 31. When the inner rotating member 32 and the outer rotating member 31 further rotate relatively, the inner rotating member 32 can be rotated to allow the supporting surface 3213 of the connecting arm 321 to be engaged with the next one-way slot 311 of the outer rotating member 31.

The extending direction of the connecting arm 321 is set along the inner wall of the outer rotating member 31, or alternatively, the extending direction is set along the rotating directions of the inner rotating member 32 and the outer rotating member 31. When the outer rotating member 31 and the inner rotating member 32 are relatively rotated, since the direction in which the connecting arm 321 is located is along the rotation direction of the outer rotating member 31 and the inner rotating member 32, the acting force exerted on the connecting arm 321 is mainly generated by the pressing effect of the free end 3212 of the connecting arm 321, and the acting force on the connection between the connecting arm 321 and the fixing base 322 is small, thereby being beneficial to reducing the abrasion of the connection between the connecting arm 321 of the inner rotating member 32 and the fixing base 322, and being beneficial to the rotation of the outer rotating member 31 and the inner rotating member 32, and reducing the resistance.

The user can rotate the outer rotating member 31 and the inner rotating member 32 with a small force, and when the inner rotating member 32 is rotated until the supporting surface 3213 of the link arm 321 is aligned with the one-way spline 311 of the outer rotating member 31, the head supporting part 10 can be stably maintained in the adjusted position since the head supporting part 10 and the supporting part 20 cannot be reversely rotated.

In other words, the outer rotating member 31 is mounted to the support portion 20, the inner rotating member 32 is mounted to the head support portion 10, the outer rotating member 31 and the inner rotating member 32 are rotated relatively, and only the head support portion 10 can be rotated in a direction away from the support portion 20, when the lightweight neck brace 1 is in the adjustment state.

Since the supporting surface 3213 of the connecting arm 321 of the inner rotating member 32 is pressed against the one-way spline 311 of the outer rotating member 31, the outer rotating member 31 and the inner rotating member 32 cannot freely rotate clockwise or counterclockwise, and the inner rotating member 32 can only rotate relative to the outer rotating member 31 in the direction of the one-way spline 311. When the inner rotary member 32 is rotated in the direction of the one-way slot 311, the head support 10 is rotated in a direction away from the support 20. When the inner rotor 32 is rotated so that the support surface 3213 of the connecting arm 321 of the inner rotor 32 engages with the one-way spline 311 of the outer rotor 31, the head support 10 is fixed to the support 20, and the head support 10 cannot be rotated in a direction closer to the support 20.

With continued reference to fig. 2, the fixing base 322 has a first end portion 3221 and a second end portion 3222 corresponding to the first end portion 3221, wherein one of the connecting arms 321 is connected to the first end portion 3221 and extends in a suspended manner toward the second end portion 3222, and the other connecting arm 321 is connected to the first end portion 3221 and extends in a suspended manner toward the second end portion 3222. In other words, the free end 3212 of the connecting arm 321 connected to the first end 3221 and the second end 3222 are kept at a certain distance to allow the connecting arm 321 to deform toward the fixing base 322 when receiving pressure, and the free end 3212 of the connecting arm 321 connected to the second end 3211 and the first end 3221 are kept at a certain distance to allow the connecting arm 321 to deform toward the fixing base 322 when receiving pressure.

The distance from the free end 3212 of the connecting arm 321 to the fixing base 322 is variable within a certain range, for example, when the supporting surface 3213 of the connecting arm 321 is pressed against the unidirectional spline 311 formed by the inner wall of the outer rotating member 31 and is disengaged from one unidirectional spline 311, and the distance between the free end 3212 of the connecting arm 321 and the fixing base 322 is changed during the process of being engaged into the next unidirectional spline 311.

When the outer rotating member 31 rotates relative to the inner rotating member 32, the force exerted by the outer rotating member 31 can press the free end 3212 of the connecting arm 321 inward, and the connecting arm 321 has a certain elasticity so as to keep fit with the outer rotating member 31. Since the link arm 321 is arc-shaped and extends in the rotational direction of the outer rotating member 31 and the inner rotating member 32, the link arm 321 is mainly stressed by the free end 3212, thereby reducing the force applied to the link end 3211 of the link arm 321. From the perspective of the connecting arm 321 of the inner rotating member 32, the connecting end 3211 of the connecting arm 321 does not provide excessive resistance during the rotation of the outer rotating member 31 and the inner rotating member 32, thereby facilitating easier rotation of the outer rotating member 31 and the inner rotating member 32 by a user.

Further, for uniformity of force receiving and smoothness of rotation of the outer and inner

rotating members

31 and 32, the two connecting arms 321 are arranged to be center-symmetrical such that force receiving of the free ends 3212 of the two connecting arms 321 is in the same rotation direction when the outer rotating member 31 rotates relative to the inner rotating member 32.

The lightweight collar 1 is controllably convertible between the adjustment state and the free state. The adjustment portion 30 further comprises an adjustment member 33, wherein the adjustment member 33 is operable to allow the lightweight collar 1 to switch between the adjustment state and the free state.

In the adjustment state, the free end 3212 of the connecting arm 321 of the inner rotating member 32 is limited to the adjustment member 33, so that the inner rotating member 32 remains pressed against the outer rotating member 31, so that the inner rotating member 32 and the outer rotating member 31 cannot rotate freely.

In the free state, the adjuster 33 releases the free end 3212 of the link arm 321 of the inner rotator 32 so that the inner rotator 32 can be disengaged from the outer rotator 31, and thus the inner rotator 32 and the outer rotator 31 can be rotated in either clockwise or counterclockwise direction.

In detail, the adjusting member 33 has at least one limiting groove 330, and the connecting arm 321 of the inner rotating member 32 is limited in the limiting groove 330 of the adjusting member 33, so as not to be separated from the outer rotating member 31. In this embodiment, since the number of the connecting arms 321 is two, the number of the limiting grooves 330 may be two.

The connecting arm 321 may be protruded outwards to form a limiting post 3214, and the limiting post 3214 extends in the axial direction. The limiting post 3214 of the connecting arm 321 is limited to the limiting groove 330 of the adjuster 33.

The two limiting posts 3214 of the two connecting arms 321 may be symmetrically arranged, for example, axially symmetrically arranged, and correspondingly, the two limiting grooves 330 of the adjusting member 33 may be axially symmetrically arranged. The two connecting arms 321 may be provided in a centrally symmetrical arrangement.

When the adjusting member 33 is adjusted to drive the free ends 3212 of the connecting arms 321 to move inward to disengage from the unidirectional tooth grooves 311 of the outer rotating member 31, the two limiting grooves 330 can synchronously drive the two limiting posts 3214 to move so that the two connecting arms 321 are synchronously disengaged from the outer rotating member 31, and the lightweight brace 1 is adjusted to the free state.

In more detail, the adjusting member 33 includes a first limiting wing 331 and a second limiting wing 332, wherein the first limiting wing 331 is formed with one limiting groove 330, and the second limiting wing 332 is formed with the other limiting groove 330. The adjusting member 33 further comprises a mounting seat 333, wherein the first limiting wing 331 and the second limiting wing 332 extend to two sides of the mounting seat 333, and the mounting seat 333 is adapted to be mounted on an end portion of the head supporting portion 10.

The first limiting wing 331 is connected to the second limiting wing 332 and the mounting seat 333 is disposed at one side of the first limiting wing 331 and the second limiting wing 332. The user can operate the head support 10, for example, pull the head support 10 outwards, so as to drive the adjusting member 33 to move, thereby releasing the supporting surface 3213 of the connecting arm 321 of the inner rotating member 32 from the one-way slot 311 of the outer rotating member 31.

The limiting groove 330 is configured to incline, when the adjusting member 33 is driven by the head supporting portion 10 to move, the limiting groove 330 of the adjusting member 33 moves, thereby restraining the limiting post 3214 from moving inwards, and further making the free end 3212 of the connecting arm 321 approach inwards, so that the supporting surface 3213 of the connecting arm 321 is separated from the unidirectional tooth groove 311 of the outer rotating member 31.

The extending direction of the limiting groove 330 and the movable direction of the adjusting member 33 may be inclined. The adjusting member 33 has a first position and a second position, when the adjusting member 33 is located at the first position, the connecting arm 321 of the inner rotating member 32 is limited by the adjusting member 33 to keep pressing against the outer rotating member 31, and when the adjusting member 33 is located at the second position, the connecting arm 321 of the inner rotating member 32 is pressed toward a direction away from the outer rotating member 31, so that the inner rotating member 32 is released. When the adjuster 33 moves from the first position to the second position, the inclined limit groove 330 maintains the limit for the connecting arm 321 and pulls the free end 3212 of the connecting arm 321 away from the one-way spline 311 of the outer rotator 31.

It will be appreciated that the adjustment member 33 is arranged to be limited, the adjustment member 33 being movable from the first position to the second position or vice versa, but being difficult to extend in other directions.

In more detail, when the limiting posts 3214 of the connecting arm 321 of the inner rotating member 32 are respectively located at the same ends of the two limiting grooves 330, the distance between the two limiting posts 3214 is a first distance, when the limiting posts 3214 of the connecting arm 321 of the inner rotating member 32 are limited at the other ends of the two limiting grooves 330, the distance between the two limiting posts 3214 is a second distance, and the first distance is greater than the second distance, so that when the limiting posts 3214 are respectively limited at two ends of the limiting grooves 330, the relative positions of the two limiting posts 3214 are changed, thereby changing the position of the connecting arm 321, and the lightweight neck brace 1 can be changed between the free state and the adjusted state.

When the two limiting posts 3214 are mutually closed, the two connecting arms 321 are closed towards the fixed seat, so that the two connecting arms are far away from the unidirectional tooth grooves 311 of the outer rotating member 31, the supporting surface of the connecting arms 321 is released from the unidirectional tooth grooves 311, and the light-weight neck brace 1 is in the free state.

When the two limiting posts 3214 are far away from each other, the two connecting arms 321 are close to each other toward the outer rotating member 31, so that the supporting surface 3213 approaches the unidirectional tooth slot 311 of the outer rotating member 31 until being abutted against the unidirectional tooth slot 311, and the light-weight neck brace 1 is in the adjustment state.

The adjusting member 33 is located at one side of the inner rotating member 32, the limiting post 3214 is located in an axial direction, and the state of the light-weight neck brace 1 can be adjusted by changing the relative positions of the adjusting member 33 and the inner rotating member 32.

Further, the two limiting grooves 330 may be provided in an "eight" shape, that is, the distance between the two limiting grooves 330 is gradually increased from one end to the other end.

Further, the adjusting part 30 may further include an elastic connection member 34, wherein the adjusting member 33 is mounted to the head supporting part 10 and is elastically supported to the elastic connection member 34.

The elastic connection member 34 is located in the movable direction of the adjustment member 33. When the adjustment member 33 is moved from the first position to the second position, the elastic connection member 34 is further pressed. When the adjusting member 33 moves from the second position to the first position, the pressing force applied to the elastic connecting member 34 is reduced as compared with the previous pressing force.

By means of the elastic connection 34, the adjusting member 33 can be elastically supported at the first position. The adjustment member 33 is capable of being adjusted to the second position when a user applies a force to the head support 10 to pull the head support 10 outwardly. When the user releases his hand, the adjusting member 33 can be automatically reset to the first position by the elastic connecting member 34.

In more detail, the adjusting portion 30 further includes an adjusting portion mounting housing 35, wherein the adjusting portion mounting housing 35 forms a mounting space 350, wherein the adjusting member 33 is received in the mounting space 350 of the adjusting portion mounting housing 35 of the head supporting portion 10, and the end portion of the head supporting portion 10 is movably inserted into the adjusting portion mounting housing 35. The fixing base 322 of the inner rotary member 32 is fixedly mounted to the adjustment portion mounting housing 35, so as to be connected to the head support portion 10 via the adjustment portion mounting housing 35. The adjuster 33 is located between the inner rotor 32 and the adjuster mounting housing 35.

The adjuster 33 is mounted to the adjuster mounting case 35 and to the head support 10. The adjustment member 33 can be moved synchronously by the head support 10.

The elastic connecting member 34 has a first connecting end 341 and a second connecting end 342 corresponding to the first connecting end 341, wherein the first connecting end 341 of the elastic connecting member 34 is abutted against the mounting seat 333 of the adjusting member 33 or connected to the mounting seat 333 of the adjusting member 33. The second connecting end 342 of the elastic connecting member 34 is adapted to be abutted against the adjustment portion mounting housing 35 of the head support portion 10. That is, the elastic connection member 34 is located between the head support 10 adjustment portion mounting housing 35 and the adjustment member 33. Since the head support 10 can move the elastic connection member 34 together, for example, outwardly, the distance between the adjustment member 33 and the adjustment portion mounting housing 35 of the head support 10 is shortened in this process, and thus the elastic connection member 34 is pressed, the pressed elastic connection member 34 can naturally be extended to restore the adjustment member 33 when the head support 10 is no longer moved outwardly with the adjustment member 33.

Notably, the reset adjustment member 33 may in turn bring the head support 10 back into reset.

It will be appreciated that in the present embodiment, the inner rotary member 32 is mounted to the head support 10, and the adjusting member 33 is disposed to be interlocked with the head support 10. According to another embodiment of the utility model, the inner rotating member 32 may be mounted on the support portion 20, and the adjusting member 33 may be configured to be interlocked with the support portion 20, so that the adjustment state and the free state may be switched by pulling the support portion 20.

For the adjustment member 33, the head support 10 is formed with a guide groove 101, wherein the mount 333 of the adjustment member 33 is mounted to the guide groove 101 and can move back and forth along the guide groove 101. The guide groove 101 can guide the movement direction of the adjusting member 33 so that the inner rotating member 32 can be released when the adjusting member 33 moves outward to the second position, and the inner rotating member 32 can be pressed against the outer rotating member 31 again when the adjusting member 33 moves inward to the first position.

Notably, according to one embodiment of the utility model, the adjustment member 33 is configured to be electrically driven such that, upon user operation, the adjustment member 33 is automatically movable between the first and second positions, for example, a user may press a button to move the lightweight collar 1 between the adjustment and free states.

Further, the head support 10 includes a first support arm 11 and a second support arm 12, wherein the first support arm 11 is rotatably connected to the first support arm 21 of the support 20 by one of the adjustment portions 30, and the second support arm 12 is rotatably connected to the second support arm 22 of the support 20 by the other adjustment portion 30. The first support arm 11 is pivotally connected to the second support arm 12. The first support arm 21 is pivotally connected to the second support arm 22. The first support arm 11 is shown in fig. 1 to 6, which is not shown in the drawings, and can be folded towards the second support arm 12, as is shown in fig. 7.

When the head supporter 10 is folded toward the support 20, the first support arm 11 can be folded toward the second support arm 12, and at the same time, the first support arm 21 can be folded toward the second support arm 22, so that the entire lightweight brace 1 can be accommodated to a smaller size.

It is noted that the first support arm 21 and the second support arm 22 form an angle therebetween and the angle can be fixed in an adjusted position, and the first support arm 11 and the second support arm 12 form an angle therebetween and the angle can be fixed in an adjusted position, so that the lightweight brace 1 can be adapted to users of different sizes, for example, users having different head sizes.

Further, as shown in fig. 1 to 6, the lightweight neck brace 1 includes a fixing portion 40, wherein the fixing portion 40 is disposed on the head support portion 10 to assist in fixing the head support portion 10. In this embodiment, the head support 10 is supported at a chin of the head, and the head support 10 does not completely surround the head, or leaves a part of the space for the user to wear. The fixing portion 40 is provided to the head support portion 10 and can extend between both end portions of the head support portion 10 spaced apart by a certain distance, thereby fixing the head support portion 10 to the head. The head support 10 and the fixing portion 40 can form together a wearing channel 100 with adjustable size, so that the lightweight neck brace 1 can adapt to users with different head sizes.

The fixing portion 40 may be, but is not limited to, a fixing portion 40 implemented as a strap, a band with velcro, or a string, etc.

The fixing portion 40 may be accommodated in the adjusting portion 30, and the fixing portion 40 may be pulled out from the adjusting portion 30 when the fixing portion 40 needs to be used.

Further, the lightweight neck brace 1 includes a functional portion 50, wherein the functional portion 50 is provided on the head support portion 10, and the functional portion 50 is capable of fitting to and supporting the chin of the user when the head support portion 10 is supported on the chin of the user. The functional part 50 may perform a massage function on the chin, and the functional part 50 may be provided with protrusions or particles to perform a massage function. The functional part 50 may also be configured to be vibratable, and an associated power fitting may be mounted within the head support 10.

The functional part 50 may be provided to have elasticity to allow fine adjustment of the head position of the user. For example, when the head weight of the user is large, the functional part 50 is deformed greatly, and when the head weight of the user is small, the functional part 50 is deformed slightly. The functional part 50 may be implemented in the form of plastic, sponge, cloth bag filled with particulate matter, or the like.

Referring to fig. 8, another embodiment of the lightweight collar 1 according to the present utility model is shown. The difference between this embodiment and the embodiment illustrated in fig. 1 to 6 is mainly that the adjustment part 30, in this embodiment the adjustment part 30 is implemented as a torsion spring, which is connected to the head rest 10 and the support part 20, respectively.

The head supporting portion 10 is supported by the supporting portion 20 through the adjusting portion 30, and the torsion spring has two extending arms that are opened, and the included angle between the two extending arms cannot be continuously reduced within a certain angle range under the self-elasticity. When the user wears the light-weight neck brace 1, the head support portion 10 and the supporting portion 20 apply forces to the adjusting portion 30, for example, the gravity of the head, so that the included angle between the two extending arms of the torsion spring is reduced, and once the two extending arms of the torsion spring are reduced to a certain range, the user cannot move the head downward, that is, the user cannot lower the head.

When the user wants to adjust the lightweight collar 1, the user can only adjust the lightweight collar 1 upwards so that both of the extension arms of the torsion spring can be stretched. That is, the head support portion 10 of the lightweight neck brace 1 can be unidirectionally adjusted with respect to the support portion 20, and can be unidirectionally adjusted toward a direction away from the support portion 20.

According to another aspect of the present utility model, there is provided a method of adjusting the lightweight collar 1, wherein the method of adjusting comprises the steps of:

The head support 10 and the support 20 of the lightweight neck brace 1 are shifted between the adjustment state and the free state by the outer rotating member 31 and the inner rotating member 32 of the adjustment portion 30 of the lightweight neck brace 1, wherein the head support 10 and the support 20 of the lightweight neck brace 1 are rotatably connected by the adjustment portion 30, the head support 10 is adapted to support the head and is supported by the support 20, the support 20 is adapted to be supported by the torso, the head support 20 of the lightweight neck brace 1 is rotatable in a direction away from the support 20 and is not rotatable in a direction close to the support 20 when the inner rotating member 32 is disengaged from the outer rotating member 31, and the head support 20 is rotatable in any direction away from the support 20 when the inner rotating member 32 is engaged with the outer rotating member 31, the lightweight neck brace 1 is in the adjustment state.

According to one embodiment of the utility model, in the above method, the position of the inner rotating member 32 is controlled by the adjusting member 33, and the lightweight neck brace 1 can be changed from the adjusted state to the free state by pulling the adjusting member 33.

According to one embodiment of the utility model, in the above method, the position of the inner rotating member 32 is controlled by the adjusting member 33, and when the adjusting member 33 is released, the lightweight neck brace 1 is automatically changed from the free state to the adjusted state.

According to one embodiment of the present utility model, in the above method, the head is massaged by the head support 10.

According to one embodiment of the utility model, in the above method, the angle formed by the first support arm 11 and the second support arm 12 of the head support 10 is changed to accommodate heads of different sizes.

According to one embodiment of the present utility model, the connecting arm 321 of the inner rotating member 32 is controlled by the adjusting member 33, in the adjusted state, the connecting arm 321 is controlled to press-fit the one-way tooth grooves 311 of the outer rotating member 31 to enable one-way relative rotation of the outer rotating member 31 and the inner rotating member 32, and in the free state, the connecting arm 321 is controlled to disengage from the one-way tooth grooves 311 of the outer rotating member 31 to enable free rotation of the outer rotating member 31 and the inner rotating member 32.

According to one embodiment of the utility model, the inner rotating member 32 is controlled by changing the position of the adjusting member 33, when the adjusting member 33 is in the first position, in the adjusted state, and when the adjusting member 33 is moved to the second position, the connecting arm 321 of the inner rotating member 32 is brought to disengage from the outer rotating member 31, thereby being in the free state.

According to one embodiment of the present utility model, the adjustment member 33 is controlled by pulling the head support 10 to control the inner rotating member 32, and when the head support 10 is pulled outward, the adjustment member 33 is driven to the first position, and in the adjustment state, when the force applied to the adjustment member 33 by the head support 10 is reduced or eliminated, the adjustment member 33 can be reset to the first position.

According to an embodiment of the present utility model, the supporting portion 20 is pulled to control the adjusting member 33 to control the rotating member 32, when the supporting portion 20 is pulled outwards, the adjusting member 33 is driven to the first position, and in the adjusting state, when the force applied to the adjusting member 33 by the supporting portion 20 is weakened or lost, the adjusting member 33 can be reset to the first position.

According to one embodiment of the present utility model, the adjusting member 33 located at the first position can be automatically reset to the second position, and can drive the head support 10 to be reset.

It will be appreciated by persons skilled in the art that the embodiments of the utility model described above and shown in the drawings are by way of example only and are not limiting. The objects of the present utility model have been fully and effectively achieved. The functional and structural principles of the present utility model have been shown and described in the examples and embodiments of the utility model may be modified or practiced without departing from the principles described.

Claims

1. A lightweight neck brace adapted to support a head on a torso, comprising:

a head support, wherein the head support is adapted to support the head;

A support portion, wherein the support portion is connected to the head support portion, the support portion being adapted to be supported on the torso, so as to support the head support portion on the torso by the support portion; and

at least one adjusting part, wherein the adjusting part is positioned at the joint of the head bearing part and the supporting part, and by means of the adjusting part, the head bearing part is connected to the supporting part in a folding way towards the supporting part so that the size of an included angle between the head bearing part and the supporting part can be adjusted, wherein the light neck brace has an adjusting state, and in the adjusting state, the head bearing part is allowed to be unidirectionally adjusted towards a direction away from the supporting part.

2. The lightweight brace of claim 1, wherein the lightweight brace has a free state in which the head support is allowed to adjust in either one of a direction away from the support and a direction toward the support, the lightweight brace being operable to transition between the adjusted state and the free state.

3. The lightweight brace of claim 1, wherein the adjustment portion comprises an outer swivel member and an inner swivel member, wherein the outer swivel member is mounted to the head support portion, the inner swivel member is mounted to the support portion, wherein an inner wall of the outer swivel member surrounds an accommodation space, the inner swivel member is accommodated in the accommodation space, wherein the inner wall of the outer swivel member is recessed to form at least two unidirectional tooth slots, the inner swivel member comprises at least one connecting arm and a fixing base, wherein the connecting arm integrally extends outwardly from the fixing base to allow the connecting arm to deform upon being stressed and recover upon being released from pressure, wherein the connecting arm is formed with a support surface and the support surface is capable of being pressed against the unidirectional tooth slots of the outer swivel member to lock the outer swivel member and the inner swivel member, and in the adjustment state the connecting arm is pressed and selectively pressed against one of the unidirectional tooth slots of the outer swivel member to enable the passive swivel member to be restrained only in one direction.

4. The lightweight brace of claim 2, wherein the adjustment portion comprises an outer swivel member and an inner swivel member, wherein the outer swivel member is mounted to the head support portion, the inner swivel member is mounted to the support portion, wherein an inner wall of the outer swivel member surrounds a receiving space, the inner swivel member is received in the receiving space, wherein the inner wall of the outer swivel member is recessed to form at least two unidirectional tooth slots, the inner swivel member comprises at least one connecting arm and a fixed seat, wherein the connecting arm integrally extends outwardly from the fixed seat to allow the connecting arm to deform upon application of force and to recover upon withdrawal of pressure, wherein the connecting arm is formed with a support surface and the support surface is capable of being pressed against the unidirectional tooth slots of the outer swivel member to lock the outer swivel member and the inner swivel member, in the adjustment state, the connecting arm is pressed and selectively pressed against one of the unidirectional tooth slots of the outer swivel member to enable the swivel member to be released from the outer swivel member in a free state only.

5. The lightweight brace of claim 1, wherein the adjustment portion comprises an outer swivel member and an inner swivel member, wherein the outer swivel member is mounted to the support portion, the inner swivel member is mounted to the head support portion, wherein an inner wall of the outer swivel member surrounds an accommodation space, the inner swivel member is accommodated in the accommodation space, wherein the inner wall of the outer swivel member is recessed to form at least two unidirectional tooth slots, the inner swivel member comprises at least one connecting arm and a fixing base, wherein the connecting arm extends integrally and outwardly from the fixing base to allow the connecting arm to deform upon being stressed and recover upon being released of pressure, wherein the connecting arm is formed with a support surface and the support surface is capable of being pressed against the unidirectional tooth slots of the outer swivel member to lock the outer swivel member and the inner swivel member, in the adjustment state the connecting arm is pressed and selectively pressed against one of the unidirectional tooth slots of the outer swivel member to enable the passive swivel member to be restrained only in one direction.

6. The lightweight brace of claim 2, wherein the adjustment portion comprises an outer swivel member and an inner swivel member, wherein the outer swivel member is mounted to the support portion, the inner swivel member is mounted to the head support portion, wherein an inner wall of the outer swivel member surrounds a receiving space, the inner swivel member is received in the receiving space, wherein the inner wall of the outer swivel member is recessed to form at least two unidirectional tooth slots, the inner swivel member comprises at least one connecting arm and a fixed seat, wherein the connecting arm integrally extends outwardly from the fixed seat to allow the connecting arm to deform upon being forced and recover upon being released of pressure, wherein the connecting arm is formed with a support surface and the support surface is capable of being pressed against the unidirectional tooth slots of the outer swivel member to lock the outer swivel member and the inner swivel member, in the adjustment state, the connecting arm is pressed and selectively pressed against one of the unidirectional tooth slots of the outer swivel member to enable the swivel member to be released of the outer swivel member relative to the free swivel member.

7. The lightweight brace of claim 4 or 6, wherein the number of the connection arms of the inner swivel is two and is centrally symmetrically arranged to the fixing base.

8. The lightweight brace of claim 4 or 6, wherein the adjustment portion further comprises an adjustment member having at least one limiting slot, wherein the connecting arm of the inner swivel member is formed with a limiting post extending to the limiting slot of the adjustment member to limit the inner swivel member by the adjustment member, in the adjustment state the limiting post presses the support surface of the connecting arm against the one-way slot to limit the one-way rotation of the outer swivel member and the inner swivel member, in the free state the limiting post limits the connecting arm to form a space between the support surface and the one-way slot, the lightweight brace being convertible between the adjustment state and the free state by adjusting the adjustment member.

9. The lightweight neck brace according to claim 7, wherein each of the connection arms of the inner swivel member forms a limit post, wherein the adjustment portion further comprises an adjustment member forming two symmetrically arranged limit grooves, a distance between the two limit grooves being set to be gradually increased from one end to the other end, the limit post of the connection arm being limited to the limit groove of the adjustment member, a distance between the two limit posts being narrowed by the two limit grooves of the adjustment member when the adjustment member moves relative to the inner swivel member and the limit post moves from a maximum end to a minimum end of the distance between the two limit grooves of the adjustment member, the connection arm being brought toward the fixing seat and away from the one-way tooth groove of the outer swivel member, whereby the lightweight neck brace changes from the adjustment state toward the free state.

10. The lightweight neck brace according to claim 8, wherein the adjustment portion further comprises an adjustment portion mounting housing and an elastic connection member, wherein the adjustment portion mounting housing forms a mounting space, the adjustment member is located in the mounting space, the elastic connection member is located between the adjustment member and the adjustment portion mounting housing, the head support portion is movably inserted into the adjustment portion mounting housing back and forth, the adjustment member is capable of being moved outward by the head support portion when the head support portion is pulled outward, and the elastic connection member is pressed, whereby the connection arm of the inner rotation member is capable of being released from the outer rotation member to be in the free state, and the adjustment member is automatically reset to be in the adjustment state by the elastic connection member when the force applied to the head support portion is lost.

11. The lightweight neck brace according to claim 9, wherein the adjustment portion further comprises an adjustment portion mounting housing and an elastic connection member, wherein the adjustment portion mounting housing forms a mounting space, the adjustment member is located in the mounting space, the elastic connection member is located between the adjustment member and the adjustment portion mounting housing, the head support portion is movably inserted into the adjustment portion mounting housing back and forth, the adjustment member is capable of being moved outward by the head support portion when the head support portion is pulled outward, and the elastic connection member is pressed, whereby the connection arm of the inner rotation member is capable of being released from the outer rotation member to be in the free state, and the adjustment member is automatically reset to be in the adjustment state by the elastic connection member when the force applied to the head support portion is lost.

12. The lightweight brace according to any of claims 1-6, wherein the lightweight brace further comprises a length adjustable securing portion, wherein the securing portion extends between two ends of the head support portion, respectively, to form a size adjustable wearing channel.

13. The lightweight collar according to any one of claims 1 to 6, wherein the lightweight collar further comprises a functional portion, wherein the functional portion is provided to the head support portion and has elasticity for adjusting the relative positions of the head support portion and the head.

14. The lightweight neck brace according to any of claims 1 to 6, wherein said head support comprises a first support arm and a second support arm, wherein said first support arm is pivotally connected to said second support arm to be folded towards said second support arm.

15. The lightweight brace according to any of claims 1 to 6, wherein the support comprises a first support arm and a second support arm, wherein the first support arm and the second support arm extend outwardly from opposite ends of the head support to the first support arm and the second support arm being interconnected to enable a stable triangular support structure, wherein the number of adjustment portions is two, two adjustment portions being located at the junction of the head support and the first support arm and the second support arm of the support, respectively, wherein the first support arm of the support is pivotally connected to the second support arm to be folded towards the second support arm.

16. The lightweight brace of claim 1, wherein the lightweight brace has a free state in which the head support is allowed to adjust in either one of a direction away from the support and a direction toward the support, the lightweight brace being operable to shift between the adjusted state and the free state, wherein the adjustment portion comprises an outer swivel member and an inner swivel member, wherein the outer swivel member is mounted to the head support, the inner swivel member is mounted to the support, or the outer swivel member is mounted to the support, the inner swivel member is mounted to the head support, wherein an inner wall of the outer swivel member surrounds a receiving space formed therein, the inner wall of the outer swivel member is recessed to form at least two unidirectional tooth sockets, the inner swivel member comprises at least one connecting arm and a fixed seat, wherein the connecting arm integrally extends from the hanging tooth socket outwardly to allow the swivel arm to rotate in the hanging tooth socket and to selectively deform in the free state relative to the outer swivel member, the outer swivel member is allowed to rotate in the free state, the inner swivel member is allowed to rotate in the one-way, the inner swivel member is received in the receiving space, the inner wall of the outer swivel member is recessed to form at least two unidirectional tooth sockets, the inner swivel member comprises at least one connecting arm and a fixed seat, wherein the connecting arm integrally extends outwardly from the hanging tooth socket, the outer swivel arm is allowed to extend outwardly, and the arm is allowed to rotate in the one-way, and the one-way arm is allowed to rotate in the free state, and the swivel member is allowed to rotate in the state, and the swivel member is allowed to rotate is allowed to change, and is allowed to rotate in a state, and the swivel member is stressed, and can is only and is allowed and is stressed. The connecting arms of the inner rotating member being released from the one-way tooth spaces of the outer rotating member such that the rotating direction of the inner rotating member and the outer rotating member is free, wherein the connecting arms have a connecting end and a free end, the connecting ends of the connecting arms being connected to the fixing base, wherein the number of the connecting arms of the inner rotating member is two and arranged centrally symmetrically to the fixing base, wherein each of the connecting arms of the inner rotating member forms a limit post, wherein the adjusting part further comprises an adjusting member forming two symmetrically arranged limit grooves, the distance between the two limit grooves is set to gradually increase from one end to the other end, the limit posts of the connecting arms are located in the limit grooves of the adjusting member, the distance between the two limit posts of the adjusting member being restricted from the mounting part to the mounting part when the adjusting member moves relative to the inner rotating member and the limit posts move from the maximum end of the limit groove toward the minimum distance, the two limit posts being located between the two limit posts toward the mounting part, the adjusting member being located toward the mounting part, the adjusting member being further restricted from the mounting part, the distance between the two limit posts being located toward the adjusting member, the mounting part being further restricted from the mounting part, the adjusting member being moved toward the mounting part, the mounting part being restricted from the mounting part being moved toward the head part, the mounting part being further restricted from the mounting part being moved toward the head part, and the head part being restricted from the mounting part being moved toward the mounting part, when the head support part is pulled outwards, the adjusting piece can be driven by the head support part to move outwards, meanwhile, the elastic connecting piece is extruded, so that the connecting arm of the inner rotating piece can be released from the outer rotating piece to be in the free state, when the acting force applied to the head support part is eliminated, the adjusting piece is automatically reset under the action of the elastic connecting piece to be in the adjusting state, wherein the fixing seat is provided with a first end part and a second end part, one connecting arm is connected to the first end part and extends towards the second end part, the other connecting arm is connected to the second end part and extends towards the first end part, the two connecting arms are respectively positioned at two sides of the fixing seat, wherein the direction of extension of the free end of the connecting arm to the connecting end is identical to the direction of rotation of the inner rotating member, wherein the connecting arm is arcuate, wherein the adjusting member is one side of the inner rotating member, wherein the adjusting member comprises a first limit wing and a second limit wing and has two limit grooves, wherein the two connecting arms are respectively limited in one limit groove correspondingly, when the position of the adjusting member is changed, the first limit wing and the second limit wing respectively drive the position of the two connecting arms to change so that the lightweight neck brace is changed between the adjusting state and the free state, wherein the lightweight neck brace further comprises a functional part, wherein the functional part is arranged on the head supporting part and has elasticity for adjusting the relative positions of the head supporting part and the head, the functional part is provided in a granular form to play a massage role.