Flexible structure of mask assembly and mask assembly

Abstract

The utility model relates to a flexible structure of a mask assembly and the mask assembly, and relates to the technical field of ventilation treatment. The flexible structure of the mask assembly is used for being connected with a mask and a head band of the mask assembly, the flexible structure comprises a main body, and the main body is rotationally connected with the mask, so that the flexible structure can rotate relative to the mask in one of a coronal plane and a horizontal plane in a basic tangent plane of a human body; the main body is provided with a deformable flexible function area, and the flexible function area is constructed to enable the flexible structure to be bent relative to the mask in the other plane of the coronal plane or the horizontal plane through deformation of the flexible function area so as to change the angle between the flexible structure and the mask.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilation treatment, and particularly to a flexible structure of a mask assembly and the mask assembly. Background Art

[0002] Generally, in a mask assembly, a headband is used to fix the mask on the user's face for the user to use. However, the needs of each user are different, and there are individual differences among users. Therefore, it is hoped that the wearing of the mask assembly can be adjusted to meet the wearing needs of different users.

[0003] The existing adjustment method of the mask assembly is generally to set a connecting piece between the mask and the headband for transitional connection, and the angle adjustment deformation between the headband and the mask is realized by the rotation of the connecting piece. In this adjustment method, the rotation of the connecting piece corresponds to multiple different gears. When the connecting piece is rotated to the corresponding gear, the angle between the headband and the mask can be adjusted to the corresponding angle. Therefore, the angle between the headband and the mask can only be adjusted between the specified angles, and the adjustment method is relatively inflexible. Summary of the Utility Model

[0004] The utility model provides a flexible structure of a mask assembly and the mask assembly to solve at least one of the above technical problems.

[0005] According to the first aspect of the utility model, the utility model provides a flexible structure of a mask assembly, and the flexible structure is used to be connected with the mask and the headband of the mask assembly;

[0006] Wherein, the flexible structure includes a main body, and the main body is rotationally connected with the mask, so that the flexible structure can rotate relative to the mask in a plane of the coronal plane or the horizontal plane in the basic section plane of the human body; a deformable flexible functional area is arranged on the main body, and the flexible functional area is configured to be able to bend relative to the mask in the other plane of the coronal plane or the horizontal plane through its deformation, so as to change the angle between the flexible structure and the mask.

[0007] In one embodiment, the flexible structure includes a main body, and the flexible functional area includes a wavy groove structure, and the groove structure is configured to be able to narrow or expand in the coronal plane or the horizontal plane, so that the flexible structure bends relative to the mask in the coronal plane and / or the horizontal plane.

[0008] In one embodiment, the groove structure includes:

[0009] A first groove, which is arranged on the outer surface of the main body and extends in the thickness direction of the main body; and

[0010] A second groove, which is provided on the inner surface of the main body and extends along the thickness direction of the main body;

[0011] Wherein, when the first groove expands and the second groove narrows, the flexible structure bends towards the inner side of the mask in the horizontal plane; when the first groove narrows and the second groove expands, the flexible structure bends towards the outer side of the mask in the horizontal plane.

[0012] In one embodiment, both the first groove and the second groove are provided as one or more. When both the first groove and the second groove are multiple, the multiple first grooves are spaced along the length direction of the main body, and the multiple second grooves are spaced along the length direction of the main body.

[0013] In one embodiment, the first groove and the second groove are alternately arranged in the length direction of the main body or are oppositely arranged in the thickness direction of the main body.

[0014] In one embodiment, the groove structure includes:

[0015] A third groove, which is provided on the upper side of the main body and extends along the width direction of the main body; and

[0016] A fourth groove, which is provided on the lower side of the main body and extends along the width direction of the main body;

[0017] Wherein, when the third groove narrows and the fourth groove expands, the flexible structure bends towards the upper side of the mask in the coronal plane; when the third groove expands and the fourth groove narrows, the flexible structure bends towards the lower side of the mask in the horizontal plane.

[0018] In one embodiment, both the third groove and the fourth groove are provided as one or more. When both the third groove and the fourth groove are multiple, the multiple third grooves are spaced along the length direction of the main body, and the multiple fourth grooves are spaced along the length direction of the main body.

[0019] In one embodiment, the third groove and the fourth groove are alternately arranged in the length direction of the main body.

[0020] In one embodiment, when the main body is subjected to a tensile force along its length direction, both the third groove and the fourth groove expand, so that the main body is elongated; when the tensile force disappears, both the third groove and the fourth groove contract, so that the main body returns to its length before being stressed.

[0021] In one embodiment, the depth of the groove structure is 5%-95% of the thickness of the main body, the depth of the groove structure is 5%-95% of the width of the main body, or the depth of the groove structure is less than 50% of the thickness of the main body.

[0022] In one embodiment, a rotating head is provided at the first end of the main body, a threading hole is provided at the second end of the main body, the rotating head is used for rotatably connecting with a rotating joint part on the side of the mask, and the threading hole is used for fixedly connecting with the headband.

[0023] In one embodiment, the rotating head is configured as a circular structure, an arc structure or a fan-shaped structure.

[0024] In one embodiment, a hook-shaped part is provided at the first end of the main body, a threading hole is provided at the second end of the main body, the hook-shaped part is used for snap-connecting with a connecting bracket on the side of the mask, and the threading hole is used for fixedly connecting with the headband.

[0025] In one embodiment, the main body is configured as a structure with a gradually increasing width in the direction from the mask to the headband.

[0026] According to the second aspect of the present invention, the present invention further provides a mask assembly, including the flexible structure of the above mask assembly, and further including a mask and a headband. The mask includes a mask support part and a mask sealing part arranged on the circumference of the mask support part, and the mask support part is connected to the flexible structure.

[0027] Compared with the prior art, the advantages of the present invention are that through the rotation between the main body and the mask, the flexible structure can rotate relative to the mask in the coronal plane (or horizontal plane), and through the deformation of the flexible functional area itself, the flexible structure can bend relative to the mask in the horizontal plane (or coronal plane), so as to realize more flexible and free multi-angle adjustment of the flexible structure, enabling the wearing of the mask assembly to be adjusted according to the individual differences of users and different needs of users, thereby improving the wearing comfort. Since the flexible functional area of the present invention is a deformable flexible functional area, it achieves the purpose of changing the angle between the flexible structure and the mask through its own deformation, so that the angle between the flexible structure and the mask does not rely on gear adjustment, and thus the adjustment method is more flexible and free. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Hereinafter, the present invention will be described in more detail based on embodiments and with reference to the drawings.

[0029] Figure 1 and Figure 2It is a schematic three-dimensional structure diagram of the mask assembly in Embodiment 1 of the present utility model;

[0030] Figure 3 and Figure 4 It is a schematic three-dimensional structure diagram of the flexible structure in Embodiment 1 of the present utility model;

[0031] Figure 5 It is a side view of the mask assembly in Embodiment 1 of the present utility model; showing the state where the flexible structure is not rotated relative to the mask;

[0032] Figure 6 It is a side view of the mask assembly in Embodiment 1 of the present utility model, showing the state where the flexible structure is rotated relative to the mask;

[0033] Figure 7 It is a top view of the mask assembly in Embodiment 1 of the present utility model; showing the state where the flexible structure is not bent relative to the mask;

[0034] Figure 8 It is a top view of the mask assembly in Embodiment 1 of the present utility model, showing the state where the flexible structure is bent relative to the mask;

[0035] Figure 9 and Figure 10 It is a schematic three-dimensional structure diagram of the flexible structure in Embodiment 2 of the present utility model;

[0036] Figure 11 It is a top view of the mask assembly in Embodiment 2 of the present utility model; showing the state where the flexible structure is not bent relative to the mask;

[0037] Figure 12 It is a top view of the mask assembly in Embodiment 2 of the present utility model, showing the state where the flexible structure is bent relative to the mask;

[0038] Figure 13 and Figure 14 It is a schematic three-dimensional structure diagram of the mask assembly in Embodiment 3 of the present utility model;

[0039] Figure 15 It is a top view of the mask assembly in Embodiment 3 of the present utility model; showing the state where the flexible structure is not bent relative to the mask;

[0040] Figure 16 It is a top view of the mask assembly in Embodiment 3 of the present utility model, showing the state where the flexible structure is bent relative to the mask;

[0041] Figure 17 and Figure 18 It is a schematic three-dimensional structure diagram of the mask assembly in Embodiment 4 of the present utility model;

[0042] Figure 19 and Figure 20 is a schematic three - dimensional structure diagram of the flexible structure in Embodiment 4 of the present utility model;

[0043] Figure 21 is a side view of the mask assembly in Embodiment 4 of the present utility model; showing the state where the flexible structure has not rotated relative to the mask;

[0044] Figure 22 is a side view of the mask assembly in Embodiment 4 of the present utility model, showing the state where the flexible structure has rotated relative to the mask;

[0045] Figure 23 is a top view of the mask assembly in Embodiment 4 of the present utility model;

[0046] Figure 24 is Figure 23 an enlarged view at B;

[0047] Figure 25 is Figure 21 an enlarged view at A;

[0048] Figure 26 is a schematic diagram corresponding to the α - plane and β - plane in each embodiment of the present utility model and the anatomical basic section of the human body;

[0049] Reference numerals:

[0050] 1, mask; 2, flexible structure; 3, headband; 31, headband fastener;

[0051] 11, mask support part; 12, mask sealing part; 13, rotating joint part; 14, connecting bracket; 15, exhaust hole;

[0052] 21, main body; 22, flexible functional area;

[0053] 211, rotating head; 212, hook - shaped part; 213, string - passing hole;

[0054] 221, first groove; 222, second groove; 223, third groove; 224, fourth groove;

[0055] 225, outer surface; 226, inner surface; 227, upper side; 228, lower side. Detailed implementation manners

[0056] The present utility model will be further described below in conjunction with the accompanying drawings.

[0057] The present utility model provides a flexible structure 2 for a face mask assembly. The face mask assembly generally may include a face mask 1 and a headband 3. The flexible structure 2 is respectively connected to the face mask 1 and the headband 3, so as to fix the face mask 1 on the user's face. Generally, one flexible structure 2 may be respectively arranged on both sides of the face mask 1, and the flexible structures 2 on both sides of the face mask 1 are respectively connected to both ends of the headband 3.

[0058] The flexible structure 2 can be made of a rigid material, such as polypropylene (PP) or polycarbonate (PC), etc., so as to improve the overall rigidity of the face mask and avoid deformation of the face mask 1 under the action of continuous stress.

[0059] The flexible structure 2 is configured to be able to rotate or bend relative to the face mask 1 in at least two planes to change the angle between the flexible structure 2 and the face mask 1. Among them, the at least two planes include the coronal plane (please refer to Figure 26 and Figure 5 and Figure 6 the α plane shown) and the horizontal plane (please refer to Figure 26 and Figure 7 and Figure 8 the β plane shown) corresponding to the human body's basic cut planes when the face mask assembly is worn, so as to realize the multi-angle adjustment of the flexible structure 2, enabling the wearing of the face mask assembly to be adjusted according to the individual differences of the user and the different needs of the user, thereby improving the wearing comfort.

[0060] The rotation of the flexible structure 2 relative to the face mask 1 can be realized, for example, through the rotational connection between the flexible structure 2 and the face mask 1; the bending of the flexible structure 2 relative to the face mask 1 can be realized, for example, through the deformable flexible functional area 22 on the flexible structure 2. The deformable flexible functional area 22 can make the flexible structure 2 bend relative to the face mask in the coronal plane or the horizontal plane through its own deformation. Therefore, the angle adjustment between the flexible structure 2 and the face mask 1 can be more flexible and free, and can be adjusted accordingly according to the user's preference or usage requirements. In addition, the deformable flexible functional area 22 can also make the flexible structure 2 stretch or contract relative to the face mask in the coronal plane or the horizontal plane through its own deformation, so as to adapt to users with different head circumferences.

[0061] It should be noted that, as Figure 26 shown, the human body's basic cut planes described in this article are: (1) the sagittal plane, which is a vertical cut plane made along the anteroposterior diameter of the body and divides the human body into left and right halves, perpendicular to the frontal plane and the horizontal plane; (2) the coronal plane (i.e., the α plane described in this article), which is a vertical cut plane made along the left and right diameters of the body and divides the human body into front and back parts, perpendicular to the sagittal plane and the horizontal plane; (3) the horizontal plane (i.e., the β plane described in this article), which is a horizontal cut plane parallel to the ground for an upright human body and divides the human body into upper and lower parts. The horizontal plane is perpendicular to the coronal plane and the frontal plane.Example 1

[0062] As Figure 1 and Figure 2 shown, the flexible structure 2 includes a main body 21. As Figure 3 and Figure 4 shown, the main body 21 is configured as a plate-like structure extending in the direction from the face mask 1 to the headband 3, and in the direction from the face mask 1 to the headband 3, its width gradually increases.

[0063] In this Embodiment 1, the main body 21 is configured as a buckle main body. As Figure 3 shown, the first end of the main body 21 is used for rotatably connecting with the face mask 1, so that the flexible structure 2 can rotate relative to the face mask 1 within the coronal plane (α plane) of the face mask 1. Specifically, a rotating head 211 is provided at the first end of the main body 21, and the rotating head 211 is configured as a circular structure, an arc-shaped structure or a fan-shaped structure. A rotating engagement portion 13 (which can be a hole or other structure, for example) is correspondingly provided on the side portion of the face mask 1, and the rotating head 211 is rotatably connected with the rotating engagement portion 13. As Figure 5 shown, through the rotating head 211, the flexible structure 2 can be rotated relative to the face mask 1 within the α plane. As Figure 6 shown, the state after the flexible structure 2 rotates (rotates clockwise) relative to the face mask 1 within the α plane is shown. Therefore, the flexible structure 2 and the headband can be changed from the state Figure 5 shown, which is substantially on the same horizontal line as the face mask 1 within the α plane, to the state Figure 6 shown, which has a certain included angle with the face mask 1 within the α plane.

[0064] Conceivably, the rotating head 211 can also be connected to the rotating engagement portion 13 of the face mask 1 by magnetic attraction. When it is necessary to adjust the angle of the flexible structure 2 relative to the face mask 1, the rotating head 211 can be detached from the face mask 1 and reconnected after the angle is changed.

[0065] Please continue to refer to Figure 3 and Figure 4 , a flexible functional area 22 is provided on the main body 21. The flexible functional area 22 includes a wavy groove structure. The wavy groove structure is conducive to its deformation under an external force. For example, the groove structure is configured to be able to narrow or expand, so that the flexible structure 2 bends relative to the face mask 1 within the horizontal plane (β plane) of the face mask 1.

[0066] Specifically, the groove structure includes a first groove 221 and a second groove 222. The first groove 221 is provided on the outer surface 225 of the main body 21 (please refer to Figure 3 and Figure 4 ) and extends in the thickness direction of the main body 21. The second groove 222 is provided on the inner surface 226 of the main body 21 (please refer to Figure 3 andFigure 4 ) on and extends along the thickness direction of the main body 21.

[0067] Wherein, when the first groove 221 expands and the second groove 222 narrows, the flexible structure 2 bends towards the inner side of the mask 1 in the horizontal plane (β plane) of the mask 1; when the first groove 221 narrows and the second groove 222 expands, the flexible structure 2 bends towards the outer side of the mask 1 in the horizontal plane (β plane) of the mask 1.

[0068] As Figure 7 shown, the state when the flexible structure 2 is not bent in the horizontal plane (β plane) of the mask assembly is shown. As Figure 8 shown, when the flexible structure 2 is subjected to a force towards the inner side of the mask 1 (which is manifested as the action of tightening the headband 3 in actual application), the flexible structure 2 will bend towards the inner side of the mask 1 in the horizontal plane (β plane) (visually presenting the effect that the flexible structure 2 rotates counterclockwise relative to the mask 1). At this time, the first groove 221 narrows and the second groove 222 expands, and the overall performance is that the flexible structure 2 bends towards the inner side of the mask 1, thereby realizing the multi-angle adjustment of the flexible structure 2 in the β plane.

[0069] On the contrary, when the flexible structure 2 is subjected to a force towards the outer side of the mask 1 (which is manifested as the action of loosening the headband 3 in actual application), the flexible structure 2 will bend towards the outer side of the mask 1 in the horizontal plane (β plane) (visually presenting the effect that the flexible structure 2 rotates clockwise relative to the mask 1). At this time, the first groove 221 expands and the second groove 222 narrows, and the overall performance is that the flexible structure 2 bends towards the outer side of the mask 1.

[0070] Please continue to refer to Figure 3 and Figure 4 , both the first groove 221 and the second groove 222 are provided as one or more. Wherein, when both the first groove 221 and the second groove 222 are multiple, the multiple first grooves 221 are arranged at intervals along the length direction of the main body 21 (i.e., the direction from the mask 1 to the headband 3), and the distance between the multiple first grooves 221 can be set to be the same; similarly, the multiple second grooves 222 are arranged at intervals along the length direction of the main body 21.

[0071] It can be understood that, in order to avoid stress concentration when the flexible structure 2 bends, the walls forming the first groove 221 are all transitioned by rounded corners; similarly, the walls forming the second groove 222 are all transitioned by rounded corners.

[0072] As Figure 3As shown, the first groove 221 and the second groove 222 are staggered in the length direction of the main body 21. That is to say, at the position where the first groove 221 is provided on the outer surface 225 of the main body 21, the second groove 222 is not provided at the corresponding position of the inner surface 226. Similarly, at the position where the second groove 222 is provided on the inner surface 226 of the main body 21, the first groove 221 is not provided at the corresponding position of the outer surface 225. Therefore, in the length direction of the main body 21, the first groove 221 and the second groove 222 are alternately arranged and staggered from each other.

[0073] The depth of the first groove 221 can be 5% - 95% of the thickness of the main body 21; similarly, the depth of the second groove 222 can be 5% - 95% of the thickness of the main body 21. Preferably, the depth of the first groove 221 is the same as the depth of the second groove 222 to ensure that the force conditions are roughly the same when the flexible structure 2 bends towards the inner and outer sides of the mask 1.

[0074] As Figure 3 and Figure 4 shown, a threading hole 213 is provided at the second end of the main body 21, and the threading hole 213 is used for fixedly connecting with the headband 3. Please combine Figure 1 and Figure 2 , at the end of the headband 3, there is a headband fastener 31, which can be a magic tape or a magnetic buckle, etc. After passing the end of the headband 3 through the threading hole 213 and folding it back, the end of the headband 3 can be attached to itself, thereby fixedly connecting with the flexible structure 2.

[0075] Conceivably, a fastening portion is also provided at the second end of the main body 21, and it can be connected with the end of the headband 3 by fastening.

[0076] The forming method of the flexible structure 2 can be, for example, injection molding, cutting or 3D printing and other forming methods.

[0077] Example 2

[0078] As Figures 9 - 12 shown, on the basis of the above-mentioned Embodiment 1, a variant is provided.

[0079] Specifically, the difference between this Embodiment 2 and the above-mentioned Embodiment 1 is that the first groove 221 and the second groove 222 are oppositely arranged in the thickness direction of the main body 21, as Figure 9 and Figure 10As shown. That is to say, at the position where the first groove 221 is provided on the outer surface 225 of the main body 21, the second groove 222 is also provided at the corresponding position of the inner surface 226. Similarly, at the position where the second groove 222 is provided on the inner surface 226 of the main body 21, the first groove 221 is also provided at the corresponding position of the outer surface 225. Therefore, overall, the first groove 221 and the corresponding second groove 222 are aligned with each other.

[0080] Correspondingly, the depths of the first groove 221 and the second groove 222 should be less than 50% of the thickness of the main body 21 to prevent the two first grooves 221 and the second groove 222 from communicating.

[0081] As Figure 11 shown, the state of the flexible structure 2 when not bent in the horizontal plane (β plane) of the mask assembly is shown. As Figure 12 shown, when the flexible structure 2 is subjected to a force towards the inside of the mask 1 (which is manifested as the action of tightening the headband 3 in actual application), the flexible structure 2 will bend towards the inside of the mask 1 in the horizontal plane (β plane) (visually presenting the effect that the flexible structure 2 rotates counterclockwise relative to the mask 1). At this time, the first groove 221 narrows and the second groove 222 expands, and overall it shows that the flexible structure 2 bends towards the inside of the mask 1.

[0082] Conversely, when the flexible structure 2 is subjected to a force towards the outside of the mask 1 (which is manifested as the action of loosening the headband 3 in actual application), the flexible structure 2 will bend towards the outside of the mask 1 in the horizontal plane (β plane) (visually presenting the effect that the flexible structure 2 rotates clockwise relative to the mask 1). At this time, the first groove 221 expands and the second groove 222 narrows, and overall it shows that the flexible structure 2 bends towards the outside of the mask 1. Therefore, multi-angle adjustment of the flexible structure 2 in the β plane can be achieved.

[0083] The similarities between the second embodiment and the above-mentioned first embodiment will not be elaborated here.

[0084] Example 3

[0085] As Figures 13 - 16 shown, on the basis of the above-mentioned second embodiment, a variant is provided.

[0086] Specifically, the difference between the third embodiment and the above-mentioned second embodiment is that the main body 21 is configured as a bone beam arm main body. The difference between the bone beam arm main body and the buckle main body is that the bone beam arm main body is longer, so that a larger range between the mask 1 and the end of the headband 3 is covered by the bone beam arm main body with adjustable angle, making its adjustment method more flexible.

[0087] The similarities between the third embodiment and the above-mentioned second embodiment will not be elaborated here.

[0088] In addition, as can be seen from Figure 15 and Figure 16 , the first groove 221 and the second groove 222 in the third embodiment adopt the same construction method as those in the second embodiment above. Understandably, the first groove 221 and the second groove 222 in the third embodiment can also adopt the same construction method as those in the first embodiment above.

[0089] Example 4

[0090] As Figures 17 - 25 shown, on the basis of the above-mentioned first embodiment, a variant is provided.

[0091] Specifically, the difference between the third embodiment and the second embodiment above lies in the connection method between the main body 21 and the mask 1 and the construction method of the groove structure.

[0092] More specifically, as Figure 19 and 20 shown, the groove structure includes a third groove 223 and a fourth groove 224. The third groove 223 is provided on the upper side 227 of the main body 21 and extends along the width direction of the main body 21. The fourth groove 224 is provided on the lower side 228 of the main body 21 and extends along the width direction of the main body 21.

[0093] As Figure 19 and Figure 20 shown, both the third groove 223 and the fourth groove 224 are provided as one or more. When both the third groove 223 and the fourth groove 224 are multiple, the multiple third grooves 223 are arranged at intervals along the length direction of the main body 21, and the multiple fourth grooves 224 are arranged at intervals along the length direction of the main body 21.

[0094] Wherein, when the third groove 223 is constructed to be narrowed and the fourth groove 224 is constructed to be expanded, the flexible structure 2 bends upward relative to the mask 1 in the coronal plane (α plane) of the mask 1; when the third groove 223 is expanded and the fourth groove 224 is narrowed, the flexible structure 2 bends downward relative to the mask 1 in the coronal plane (α plane) of the mask 1.

[0095] As Figure 21 and Figure 22 shown, when a downward force is applied to the main body 21, the multiple groups of fourth grooves 224 on the lower side will be correspondingly narrowed, and at the same time, the multiple third grooves 223 on the upper side will be correspondingly expanded, so that the flexible structure 2 bends downward relative to the mask 1 (visually presenting the effect that the flexible structure 2 rotates clockwise relative to the mask 1).

[0096] Conversely, when the main body 21 is subjected to an upward force, multiple groups of fourth grooves 224 on the lower side will expand correspondingly, while multiple third grooves 223 on the upper side will narrow correspondingly, causing the flexible structure 2 to bend upward toward the mask 1 (visually presenting the effect that the flexible structure 2 rotates counterclockwise relative to the mask 1).

[0097] The third grooves 223 and the fourth grooves 224 are arranged staggeredly in the length direction of the main body 21.

[0098] The depth of the third groove 223 can be 5%-95% of the width of the main body 21; similarly, the depth of the fourth groove 224 can be 5%-95% of the width of the main body 21. Preferably, the depth of the third groove 223 is the same as the depth of the fourth groove 224 to ensure that the force-bearing conditions are roughly the same when the flexible structure 2 bends toward the inner and outer sides of the mask 1.

[0099] In addition, since the width of the main body 21 is a variable width, the statement that the depth of the third groove 223 can be 5%-95% of the width of the main body 21 means that the depth of the third groove 223 is 5%-95% of the width of the part of the main body 21 where it is located.

[0100] Furthermore, the third grooves 223 and the fourth grooves 224 are configured such that when the main body 21 is subjected to a tensile force along its length direction, both the third grooves 223 and the fourth grooves 224 expand, causing the main body 21 to be stretched; when the tensile force disappears, both the third grooves 223 and the fourth grooves 224 contract, causing the main body 21 to return to its length before being stressed.

[0101] As Figure 25 shown, when the main body 21 is subjected to a tensile force from the headband 3 direction (i.e., the force in the F1 direction), both the third grooves 223 and the fourth grooves 224 will be stressed and expand, specifically manifested as the main body 21 undergoing elastic deformation and being stretched; when the tensile force from the headband 3 direction disappears, the elastic potential energy stored in the main body 21 will exert a force on the flexible functional area 22 in the F2 direction, causing the length of the main body 21 to return to its length before being stressed. Therefore, this solution can be used as a supplementary adjustment for the elastic adjustment of the headband 3.

[0102] Furthermore, as Figure 23 and Figure 24 shown, a hook portion 212 is provided at the first end of the main body 21, which can be a semi-cylindrical structure for snap-fitting connection with the connection bracket 14 on the side of the mask 1. And the hook portion 212 and the connection bracket 14 can form a rotational connection, that is, the hook portion 212 can rotate around the connection bracket 14. Therefore, the flexible structure 2 can rotate relative to the mask 1 in the horizontal plane (β plane) through the hook portion 212, thereby realizing multi-angle adjustment of the flexible structure 2 in the β plane.

[0103] Example 5

[0104] The present utility model further provides a face mask assembly, which includes the flexible structure 2 described in the above embodiments 1-5, and further includes a face mask 1 and a headband 3. The face mask 1 includes a face mask support portion 11 and a face mask sealing portion 12 provided on the circumference of the face mask support portion 11. The face mask support portion 11 and the flexible structure 2 can be connected in various ways described above.

[0105] The face mask sealing portion 12 fits on the user's face to ensure a sealed space is formed between it and the user's face. In addition, reference can be made to Figure 1 、 Figure 13 and Figure 17 , and a plurality of exhaust holes are further provided on the face mask support portion 11 for discharging the gas exhaled by the user to the outside of the face mask 1.

[0106] The headband 3 can use a suitable headband in the prior art. The end of the headband 3 can be provided with a headband fastener 31, which can be a magic tape or a magnetic button, etc. After passing the end of the headband 3 through the threading hole 213 and folding it back, the end of the headband 3 can be attached to the headband 3 itself, so as to be fixedly connected to the flexible structure 2.

[0107] It should be noted that the "outer side" described in the present utility model refers to the side away from the user's face, the "inner side" refers to the side close to the user's face, the "upper side" or "above" refers to the side close to the user's head top, and the "lower side" or "below" refers to the side away from the user's head top. The above terms indicating directions in the present utility model are only used to clearly illustrate the solutions herein in combination with the drawings, and should not limit the protection scope of the present utility model.

[0108] Although the present utility model has been described with reference to the preferred embodiments, various improvements can be made to it and components therein can be replaced with equivalents without departing from the scope of the present utility model. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way. The present utility model is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A flexible structure of a mask assembly, characterized in that: The flexible structure is used to connect to the mask and headband of the mask assembly; Wherein, the flexible structure includes a main body, which is rotatably connected to the mask so that the flexible structure can rotate relative to the mask in one of the coronal plane and the horizontal plane in the basic cross-section of the human body; a deformable flexible functional area is provided on the main body, and the flexible functional area is constructed to be able to bend the flexible structure relative to the mask in the other plane of the coronal plane or the horizontal plane through its deformation to change the angle between the flexible structure and the mask.

2. The flexible structure of the mask assembly according to claim 1, characterized in that: A flexible functional area is provided on the main body, and the flexible functional area includes a wavy groove structure, and the groove structure is constructed to be able to narrow or expand in the coronal plane or the horizontal plane, so that the flexible structure bends relative to the mask in the coronal plane and / or the horizontal plane.

3. The flexible structure of the mask assembly according to claim 2, characterized in that: The groove structure comprises: A first groove is provided on the outer surface of the main body and extends in the thickness direction of the main body; and a second groove, which is arranged on the inner side surface of the main body and extends along the thickness direction of the main body; Wherein, the first groove and the second groove are constructed so that when the first groove expands and the second groove narrows, the flexible structure bends toward the inner side of the mask in the horizontal plane; when the first groove narrows and the second groove expands, the flexible structure bends toward the outer side of the mask in the horizontal plane.

4. The flexible structure of the mask assembly according to claim 3, characterized in that: The first groove and the second groove are both set to one or more. When the first groove and the second groove are both multiple, the multiple first grooves are spaced apart along the length direction of the main body, and the multiple second grooves are spaced apart along the length direction of the main body.

5. The flexible structure of the mask assembly according to claim 3 or 4, characterized in that: The first grooves and the second grooves are staggered in the length direction of the main body or are oppositely arranged in the thickness direction of the main body.

6. The flexible structure of the mask assembly according to claim 2, characterized in that: The groove structure comprises: a third groove disposed on an upper side of the main body and extending in a width direction of the main body; and a fourth groove, which is disposed on the lower side of the main body and extends along the width direction of the main body; Wherein, the third groove and the fourth groove are constructed so that when the third groove is narrowed and the fourth groove is expanded, the flexible structure bends toward the top of the mask in the coronal plane; when the third groove is expanded and the fourth groove is narrowed, the flexible structure bends toward the bottom of the mask in the horizontal plane.

7. The flexible structure of the mask assembly according to claim 6, characterized in that: The third groove and the fourth groove are both set to one or more. When the third groove and the fourth groove are both multiple, the multiple third grooves are spaced apart along the length direction of the main body, and the multiple fourth grooves are spaced apart along the length direction of the main body.

8. The flexible structure of the mask assembly according to claim 6, characterized in that: The third groove and the fourth groove are alternately arranged in the length direction of the main body.

9. The flexible structure of the mask assembly according to claim 6, characterized in that: The third groove and the fourth groove are configured such that when the main body is subjected to a pulling force along its length direction, the third groove and the fourth groove both expand so that the main body is elongated; when the pulling force disappears, the third groove and the fourth groove both contract so that the main body returns to its length before the force is applied.

10. The flexible structure of the mask assembly according to claim 2, characterized in that: The depth of the groove structure is 5%-95% of the thickness of the main body, the depth of the groove structure is 5%-95% of the width of the main body, or the depth of the groove structure is less than 50% of the thickness of the main body.

11. The flexible structure of the mask assembly according to claim 1 or 2, characterized in that: A rotating head is provided at the first end of the main body, and a rope threading hole is provided at the second end of the main body. The rotating head is used to be rotatably connected to the rotating joint part of the side of the mask, and the rope threading hole is used to be fixedly connected to the headband.

12. The flexible structure of the mask assembly according to claim 11, characterized in that: The rotating head is constructed in a circular structure, an arc structure or a fan-shaped structure.

13. The flexible structure of the mask assembly according to any one of claims 1 to 4, characterized in that: The first end of the main body is provided with a hook-shaped portion, and the second end of the main body is provided with a rope threading hole. The hook-shaped portion is used to be engaged with the connecting bracket on the side of the mask, and the rope threading hole is used to be fixedly connected to the headband.

14. The flexible structure of the mask assembly according to any one of claims 1 to 4, characterized in that: The main body is configured as a structure with a width gradually increasing along a direction from the mask to the headband.

15. The flexible structure of the mask assembly according to any one of claims 1 to 4, characterized in that: The flexible structure is made of hard material.

16. A mask assembly, characterized in that: A flexible structure comprising the mask assembly of any one of claims 1-15, further comprising a mask and a headband, wherein the mask comprises a mask support portion and a mask sealing portion arranged in a circumferential direction of the mask support portion, and the mask support portion is connected to the flexible structure.

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