Headband assembly and mask system

Abstract

A headband assembly and a mask system. The headband assembly comprises a fixing main part and a fixing auxiliary part. The fixing auxiliary part is connected to an upper portion of the fixing main part. The fixing main part is configured to wrap around a back head area of a human body. The fixing auxiliary part is configured to wrap around an upper head area of the human body. The fixing main part comprises a plurality of fixing bands. At least two of the plurality of fixing bands are connected to each other. A connecting point (9) is arranged at a free end of each fixing band. The connection point (9) is used for being assembled on the mask system. The fixing auxiliary part comprises two top headbands, which are arranged side by side at intervals. Free ends of the two top headbands are connected by means of a fixing structure. The plurality of fixing bands comprise an upper headband (3), a middle connecting band, and a lower headband (4). Two end portions of the middle connecting band are connected to middle regions of the upper headband (3) and the lower headband (4), respectively. Therefore, the advantages of comfortable and firm wearing, a simple and feasible manufacturing process, saving costs, being applicable in a wide range of mask types, and the like can be achieved simultaneously.

Description

Headband assembly and mask system

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application filed with the China Patent Office on December 7, 2023, with application number 202311675657.3 and titled “A headband assembly and mask system”, the entire contents of which are incorporated by reference into this application. Technical Field

[0003] The present application relates to the technical field of ventilation therapy, and in particular to a headband assembly and a mask system. Background Art

[0004] A mask system is a device used to administer oxygen, provide positive pressure ventilation, or inhalation therapy. It typically consists of a mask that covers the mouth and nose, tubing that connects the mask to an oxygen source or ventilator, and a headband assembly that positions and secures the mask in place on the patient's face. Due to significant differences in individual heads, the headband assembly must be comfortable, well-fitted, and adaptable enough to ensure that the mask system can provide the desired conditioning, improvement, and therapeutic effects when worn by the user.

[0005] The current headband assembly is generally a "four-point" type, that is, it is connected to the mask in the mask system through four connection points to fix the mask to the patient's face. The "four-point" headband assembly is mainly divided into an "I-shaped" headband assembly and a "crown-shaped" headband assembly. Among them, the "I-shaped" headband assembly has lower wearing stability and cannot be compatible with and fixed to the top of the user's head. It can only be used with a mask system with forehead support. The "crown-shaped" headband assembly is more secure than the "I-shaped" headband assembly and can be used with or without forehead support. However, it requires a large amount of clinical data support for the top of the head to carry out personalized 3D technology construction. The difficulty of preparing a suitable 3D shape is extremely high, and the production process is complex and costly.

[0006] Overview

[0007] In response to the above problems, one of the purposes of the present invention is to provide a headband assembly that is comfortable and firm to wear, has a simple and easy manufacturing process, saves costs, and is applicable to a wide range of mask types. The second purpose of the present invention is to provide a mask system.

[0008] The first aspect of the present invention provides a headband assembly, the technical solution adopted is:

[0009] A headband assembly includes a main fixing portion and a secondary fixing portion, wherein the secondary fixing portion is connected to the upper portion of the main fixing portion, the main fixing portion is configured to wrap around the back of the human head, and the secondary fixing portion is configured to wrap around the top of the human head; wherein,

[0010] The fixed main part includes:

[0011] a plurality of fixing straps, at least two of the fixing straps being connected to each other, and a connection point being provided at a free end of each fixing strap for assembly to a mask system;

[0012] The fixed sub-part comprises:

[0013] Two top headbands are spaced apart and arranged side by side, wherein the free ends of the two top headbands are connected by a fixing structure;

[0014] Wherein, the plurality of fixing belts include:

[0015] An upper headband, an intermediate connecting band and a lower headband, wherein two ends of the intermediate connecting band are respectively connected to the middle areas of the upper headband and the lower headband.

[0016] Since both the main and auxiliary fixing parts are used to position and secure the mask in a relatively comfortable position on the face, they ensure that the mask does not loosen or fall off during use, providing a good seal and achieving the conditioning, improvement, and treatment functions of the mask system. The main and auxiliary fixing parts are arranged from the bottom to the top of the human head. The main fixing part is designed to wrap around the back of the head, while the auxiliary fixing part is designed to wrap around the top of the head to achieve a 3D wrapping effect on the head.

[0017] As one of the preferred solutions, the fixing structure includes a fixed connector and an adjustable connector that cooperate with each other, the fixed connector is provided on one of the two top headbands, and the adjustable connector is provided on the other of the two top headbands.

[0018] By providing a fixed connector and an adjustable connector, the size of the fully enclosed structure formed by the connection of the two top headbands can be changed, so as to adjust the tightness of the fixed sub-part to adapt to different head sizes.

[0019] As one of the preferred solutions, the two top headbands have different lengths of straps, and the fixed connector is provided on the top headband with the shorter strap.

[0020] As one of the preferred solutions, the fixed connecting member includes a buckle, and the adjustable connecting member includes a Velcro.

[0021] As one of the preferred solutions, the angles between the two top headbands and the corresponding fixed straps are 80°-100° respectively.

[0022] As one of the preferred solutions, the angles between the two top headbands and the corresponding fixed straps are equal.

[0023] In this embodiment, the first top headband and the second top headband can be connected to form a symmetrical distribution, which balances the pressure around the head, avoids excessive pressure or discomfort on specific parts, and helps provide a more comfortable wearing experience. The sharp-angle design reduces the gap between the headband assembly and the head, ensuring that the headband assembly fits tightly to the head, preventing the headband assembly from shifting or loosening during use, and enhancing the overall performance and wearing experience of the headband assembly.

[0024] As one of the preferred solutions, the middle connecting band includes a left headband and a right headband that are relatively inclined, and the left headband and the right headband are together with the upper headband and the lower headband to form a variable diameter wrapping cavity.

[0025] The variable-diameter wrapping cavity can be understood to have different inner diameters or diameters in the height direction. As the area of ​​the wrapping cavity changes from top to bottom to adapt to the curve and shape changes of the back of the human head, it can achieve better fit and wrapping effects, reduce the overall weight, and provide users with a more comfortable wearing experience.

[0026] As one of the preferred solutions, the lower headband is bent toward the neck area of ​​the human body to form an arc-shaped opening, and the angle of the arc-shaped opening is an obtuse angle.

[0027] In this embodiment, the lower headband is bent at its center, forming an inverted V-shaped structure with its opening facing the neck. The angle of the opening is obtuse, allowing the two symmetrical sides of the V-shaped lower headband to tilt downward and extend close to the neck. This allows the lower headband to pass behind the ears when assembled with the mask, taking into account the neck area and achieving a 3D wrapping effect.

[0028] As one of the preferred solutions, the plurality of fixing straps and the two top head straps have a planar feature.

[0029] As one of the preferred solutions, the two top headbands are connected to the upper headband, and the distances between the two top headbands and the middle connecting band are equal.

[0030] As one of the preferred solutions, the main fixing portion and the auxiliary fixing portion are integrally formed by any one of seaming, hinged connection, crimping, ultrasonic welding and high-frequency connection; and / or

[0031] At least two of the plurality of fixing belts are connected and formed into one piece by any one of seaming, hinged connection, crimping, ultrasonic welding and high-frequency connection.

[0032] The second aspect of the present invention further provides a mask system equipped with the headband assembly provided by the first aspect of the present invention.

[0033] Compared with the prior art, this application has the following advantages:

[0034] An embodiment of the present invention proposes a headband assembly, comprising a fixing main part and a fixing sub-part, wherein the fixing sub-part is connected above the fixing main part, the fixing main part is configured to wrap around the back of the human head area, and the fixing sub-part is configured to wrap around the top of the human head area; wherein, the fixing main part comprises: a plurality of fixing straps, at least two of the plurality of fixing straps are connected, and a connection point is provided at the free end of each of the fixing straps; the connection point is used to be assembled to the mask system; the fixing sub-part comprises: two top headbands arranged side by side at intervals, the free ends of the two top headbands are connected by a fixing structure, wherein the plurality of fixing straps comprise: an upper headband, an intermediate connecting strap and a lower headband, and the two ends of the intermediate connecting strap are respectively connected to the middle areas of the upper headband and the lower headband.

[0035] By adopting the technical solution of the present application, the fixed main part can form a semi-enclosed cavity structure. When the fixed main part is assembled with the mask in the mask system, it is wrapped around the back of the human head area to achieve preliminary positioning and fixation of the mask. The two top headbands in the fixed sub-part can be connected to form a fully enclosed structure, which is wrapped around the top of the human head area. Therefore, after the mask is initially fixed, the wrapping of the top and the head is increased by the fixed sub-part to achieve enhanced fixation of the mask. No 3D technical support is required. The combination of the two can form a 3D wrapping effect, which is flexibly applicable to mask systems with and without forehead support, and better achieves head wrapping, simplicity of manufacturing, and a wide range of applications at low cost. At the same time, the multi-point adjustable feature better achieves wearing comfort.

[0036] The mask system proposed in the embodiment of the present invention has the above-mentioned headband assembly already having the above-mentioned technical effects. Therefore, the mask system having the headband assembly should also have similar technical effects, so they will not be described in detail here.

[0037] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below.

[0038] BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solution of the present application, the following is a brief introduction to the drawings required for the description of the present application. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0040] FIG1 is a schematic structural diagram of an “I-shaped” headband assembly in the prior art;

[0041] FIG2 is a schematic structural diagram of a “crown-shaped” headband assembly in the prior art;

[0042] FIG3 is a schematic diagram of the unfolded structure of the headband assembly according to an embodiment of the present application;

[0043] FIG4 is a schematic diagram of the unfolded structure of a headband assembly according to another embodiment of the present application.

[0044] Explanation of the accompanying drawings: 1. First top headband; 2. Second top headband; 3. Upper headband; 4. Lower headband; 5. Left headband; 6. Right headband; 7. Fixed connector; 8. Adjustable connector; 9. Connection point.

[0045] Detailed description

[0046] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0047] Figures 1 and 2 are schematic structural diagrams of an "I-shaped" headband assembly and a "crown-shaped" headband assembly in the prior art, respectively. The "I-shaped" headband assembly is connected to the mask in the mask system via four connection points, including two upper and lower headbands arranged nearly parallel to each other. The two ends of the upper and lower headbands serve as two connection points for connecting to the mask. The middle portions of the upper and lower headbands are connected as a whole via a longitudinal connecting strap, forming a configuration resembling the Chinese character "I". It can be seen that during use, the upper headband can be connected to the forehead support portion of the mask, while the lower headband is connected to the nose and mouth support portion of the mask. However, the headband cannot secure the top of the user's head, does not form a 3D wraparound effect, is not securely worn, and is applicable to only a limited number of mask types, resulting in significant limitations.

[0048] The "crown-shaped" headband assembly is connected to the mask in the mask system through four connection points, including two upper and lower headbands set in parallel. The upper and lower headbands are respectively located on elliptical connecting straps that adapt to the back of the user's head. Due to the shape of the elliptical connecting strap, it can fit on the top of the user's head, which improves the wearing firmness compared to the "I-shaped" headband assembly. A positioning is set on the top of the wearer's head. It can generally be used for mask systems with forehead support, and can also be used for mask systems without forehead support. However, in the process of building a fit with the user's head, due to its special curvature shape design, a large amount of clinical data on the top of the head is required for 3D technology construction. The production process is complicated, time-consuming and costly. In addition, for users with certain special head shapes or sizes, it is extremely difficult to build a more reasonable 3D shape.

[0049] The forehead support and mouth and nose support vary depending on the mask's construction. Therefore, the forehead support referred to herein can be understood as the portion of the mask that faces the user's forehead, and the mouth and nose support can be understood as the portion of the mask that faces the user's mouth and nose.

[0050] It can be seen that the existing headband assembly cannot take into account many aspects such as a wide range of applicable masks, simple and easy manufacturing process, high wearing firmness, and high applicability to individual differences. When it comes to the user side, the user's wearing experience still has a lot of room for improvement.

[0051] In view of this, the present invention aims to provide a headband assembly, as shown in Figures 3 and 4, which respectively illustrate exemplary headband assemblies according to some embodiments of the present application. The headband assembly includes a fixed main portion and a fixed sub-portion, wherein the fixed sub-portion is connected above the fixed main portion, the fixed main portion is configured to wrap around the back of the human head, and the fixed sub-portion is configured to wrap around the top of the human head; wherein the fixed main portion includes: a plurality of fixing straps, at least two of the plurality of fixing straps are connected, and a connection point 9 is provided at the free end of each fixing strap; the connection point 9 is used to be assembled to the mask system; the fixed sub-portion includes: two top headbands arranged side by side at intervals, the free ends of the two top headbands being connected by a fixing structure, the plurality of fixing straps including: an upper headband, an intermediate connecting strap, and a lower headband, the two ends of the intermediate connecting strap being respectively connected to the middle areas of the upper headband and the lower headband.

[0052] Specifically, the main fixing portion and the auxiliary fixing portion are used to position and secure the mask in a relatively comfortable position on the face, ensuring that the mask does not loosen or fall off during use, thereby providing a good seal and achieving the conditioning, improvement, and treatment functions of the mask system. The main fixing portion and the auxiliary fixing portion are arranged from the bottom to the top of the human head. The main fixing portion is designed to wrap around the back of the human head, while the auxiliary fixing portion is designed to wrap around the top of the human head to achieve a 3D wrapping effect on the head.

[0053] Specifically, the multiple fixing straps in the main fixing portion are straps that may differ in position, structure, shape, and size, either partially or entirely, but function to connect the mask to the person's head. At least two fixing straps are interconnected, which can mean that one or more fixing straps have all their ends connected to the ends or straps of other fixing straps, while all or some of the other fixing straps remain unconnected. Alternatively, one or more fixing straps may have some of their ends connected to the ends or straps of other fixing straps, while the remaining ends remain unconnected to the other fixing straps. This allows the multiple fixing straps to form a continuous semi-enclosed structure that wraps around the back of the head, securing the mask to the face using the back of the head as a support point.

[0054] In this embodiment, each fixing strap has a free end and a connection point 9. The free end refers to the end of the multiple connected fixing straps that is not fixed or connected. It corresponds to the fixed end, which is the point where the multiple connected fixing straps are connected. Specifically, if the two ends of a fixing strap are connected to one end of two other fixing straps, then all ends of the fixing strap are fixed ends. The end where the two other fixing straps are connected is the fixed end, and the other end is the free end.

[0055] Among them, the free end usually has a specific structure or feature. In the embodiment of the present invention, a connection point 9 is configured on the free end, which can be adjusted, connected or fixed with other components (such as a mask) to adapt to the patient's head shape and size, thereby preliminarily fixing the mask to the back of the head area of ​​the human body. It should be understood that in this embodiment, the mask system has a fixing point that cooperates with the connection point 9, and the two are in a one-to-one correspondence. In some embodiments, the connection point 9 on the fixed main part can be assembled with the fixing point on the mask system in an insert-type, buckle-type, hook-type or other type of assembly method, which may depend on the design of the mask system and is not specifically limited herein.

[0056] Therefore, it can be understood that the main fixing portion in the headband assembly of the present invention can be used independently of the secondary fixing portion, and can be applicable to a mask system with a forehead support.

[0057] More specifically, the two top headbands are connected to the closest top headband among the multiple fixing straps in the main fixing portion, such that the secondary fixing portion is located above the main fixing portion. The two top headbands being arranged side by side can be understood as being connected to the same side of the corresponding fixing straps, with a distance between them. In some embodiments, the lengths of the two top headbands can be the same or different. In some embodiments, the widths of the two top headbands can be the same or different. In some embodiments, the width of at least one top headband can be uniform or have a gradient width, and a top headband with a gradient width can have a width that gradually increases or decreases from near the corresponding fixing strap toward the outside.

[0058] The two ends of the intermediate connecting band are respectively connected to the middle area of ​​the upper headband 3 and the lower headband 4, which can be understood as the upper headband 3 and the lower headband 4 being a split structure, wherein the middle part is integrally formed by the intermediate connecting band. The distance between the upper headband 3 and the lower headband 4 is equal to the vertical length of the belt body of the intermediate connecting band. In some embodiments, the intermediate connecting band can be vertical, that is, the distance between the upper headband 3 and the upper headband 4 is the length of the belt body of the intermediate connecting band. In some embodiments, the intermediate connecting band can be inclined, that is, the distance between the upper headband 3 and the lower headband 4 is the vertical length of the belt body of the intermediate connecting band.

[0059] In this embodiment, the upper headband 3 and the lower headband 4 are positioned at different heights at the back of the head, evenly distributing the weight of the head, reducing pressure on the headband, and improving wearing comfort. When donning or removing the headband, the upper headband 3 and the lower headband 4 can be adjusted separately to adjust the length and tightness of the headband to suit different users and different head structures. This also makes it easier to put on and take off the headband without being interfered with by the user's hairstyle or ears.

[0060] Specifically, in the upper and lower split structure, the shapes and structures of the upper headband 3 and the lower headband 4 can be set respectively while maintaining the balance of the head. For example, the upper headband 3 can be a horizontal band structure, so that it can smoothly extend along the outer edge contour of the upper end part of the back of the human head area, and the lower headband 4 can be an arc-shaped band structure, so that it can extend along the lower end part of the back of the human head area toward the neck area of ​​the human body, thereby improving the diversity and selectivity of the headband.

[0061] In some embodiments, the two top headbands are connected via a fixed structure, ensuring that both ends of the top headbands are connected, thereby forming a fully enclosed structure that wraps around the top of the head. For mask systems without forehead support, after the main fixed portion provides initial fixation, the secondary fixed portion provides increased wrapping around the top of the head, further securing the mask. These two components thus wrap around specific areas of the head, creating a 3D wrapping effect. This is suitable for both mask systems with and without forehead support, and provides a secure and comfortable fit.

[0062] Therefore, when facing the user side, there is no need to collect a large amount of user head data. The head characteristics of different users can be taken into account. It is comfortable and firm to wear, and can prevent the mask from moving or loosening, thereby improving the protective effect or treatment effect. It can also meet different medical scenarios or user needs, improving the user's wearing experience. Compared with the 3D crown headband, it is simpler to make and has a lower cost, providing more options for users with sleep and / or respiratory diseases, as well as the platform side.

[0063] In some embodiments, the multiple fixing straps in the fixing main part and the two top headbands in the fixing sub-part all have planar features. The planar features can be understood as the fixing straps and the top headband being planar as a whole, such as made of a strip of fabric, rubber, polymer, plastic or leather, etc., which are relatively flat in the horizontal direction without complex curves or three-dimensional sense. In addition, the thickness of the headband assembly is relatively uniform and evenly distributed in the entire height direction without protruding bumps, depressions or changes. The planar fixing straps and the planar top headband enable the headband assembly to provide a uniform contact surface when contacting the user's head, reducing the concentration of local pressure and making the headband more stable and comfortable to wear.

[0064] Thus, the overall planar fixed main part and the fixed auxiliary part work together to form a 3D wrapping effect, and can fit the human head well. It can be understood that compared to 3D crown headbands, flat-shaped ones are easier to design, mold making, and implement production processes. In some embodiments, conventional simple splicing, molding, and connection processes can be used to produce flat-shaped headband components, reducing raw material costs and eliminating the need for complex molds and production equipment. The production process is simple and easy, the material utilization rate is high, and the total expenditure cost is significantly reduced.

[0065] In some embodiments, the fixed structure includes a cooperating fixed connector 7 and an adjustable connector 8. The fixed connector 7 is provided on one of the two top headbands, and the adjustable connector 8 is provided on the other top headband. In this embodiment, the fixed connector 7 can be understood as a fixed support point for the adjustable connector 8 to adjust its size. The relative position between the fixed connector 7 and the corresponding headband assembly remains unchanged, while the adjustable connector 8 is installed on the other top headband, and its relative position with the corresponding headband assembly can be changed, thereby adjusting the size of the fully enclosed structure formed by the two top headbands to adjust the tightness of the secondary fixed portion to accommodate different head sizes. It is worth noting that the connection point 9 of the fixed strap can be the same as the adjustable connector 8 of the top headband, cooperating with the fixed point on the mask. The fixed point on the mask can also adopt the same structure as the fixed connector 7 of the present application to adjust the tightness of the main fixed portion to accommodate different head sizes. This multi-point adjustability feature improves wearing comfort.

[0066] In some embodiments, the fixed connector 7 can be a hook, buckle, button, buckle, etc., which is fixed to the corresponding top headband. In some embodiments, the adjustable connector 8 can be a retractable strap, a stretchable elastic strap, or a strap with adjustment holes that cooperates with the fixed connector 7. The user can fix the adjustable connector 8 to different positions or holes on the fixed connector 7 to achieve personalized adjustment of the headband. In some examples extended from this embodiment, one of the top headbands itself can serve as an adjustable connector 8, that is, the top headband has adjustable length or stretchability, and the top headband is fixed to another top headband with a fixed connector 7. In some embodiments, the adjustable connector 8 can be a Velcro that cooperates with the fixed connector 7, and the Velcro is attached to the corresponding top headband. It is worth mentioning that the material of each fixing strap can be the same as that of the top headband, and both are retractable and elastic.

[0067] More specifically, the fixed connector 7 comprises a buckle, and the adjustable connector 8 comprises a Velcro. In this embodiment, the buckle can be a Japanese-style adjustable buckle, consisting of a buckle strap with two eyelets and a buckle ring with a fixing post. One eyelet is configured to allow one of the top headbands to pass through, thereby securing it to the other, while the other eyelet allows the other top headband to pass through. The other top headband is provided with a Velcro, which can be composed of a soft suede layer and a rough hook layer joined horizontally. When the suede layer and the hook layer come into contact, the hook surface can hook onto the suede surface. In some embodiments, the suede layer and the hook layer can be provided on the same surface of the corresponding top headband, but in different regions along the length of the top headband. When the end of the top headband with the suede layer or the hook layer passes through the other eyelet of the buckle, the end of the top headband folds back and comes into contact with its own hook layer or suede layer, thereby enclosing and connecting the two top headbands to form a fully enclosed structure.

[0068] In some embodiments, the hook layer is closer to the end of the top headband relative to the suede layer, and the area of ​​the hook layer is smaller than that of the suede layer. The size of the fully enclosed structure can be adjusted by pulling the end of the top headband and selecting the length of the fold; in some embodiments, the Velcro composed of the hook layer and the suede layer is both attached to the surface of the top headband facing away from the human head; in some embodiments, a plurality of suede layers arranged at intervals can be set along the length direction of the band body of the top headband, and the area of ​​each suede layer can be smaller than, slightly larger than, or equal to the area of ​​the hook layer. The size of the fully enclosed structure can be adjusted by selecting the hook layer to contact the suede layer at different positions; in some embodiments, the hook layer may have a gap with the end of the top headband.

[0069] In this way, through the cooperation of the buckles and Velcro, the two top headbands can be firmly wrapped around the head area, and the folded length of the top headband with Velcro can be adjusted as needed to achieve a personalized wearing experience, to provide better comfort, adaptability and adjustability, and to ensure that the headband plays an enhanced fixation role during use.

[0070] To explain this embodiment in detail, the two top headbands have different lengths, and the fixed connector 7 is located on the shorter top headband. Specifically, the different lengths of the two top headbands can be understood as the different distances the top headbands extend outward from their connection with the fixed straps. If the length of the first top headband 1 is greater than the length of the second top headband 2, both the first and second top headbands 1 and 2 are located on the corresponding fixed straps. In some embodiments, the distance between the first top headband 1 and the adjacent free end of the fixing strap may be less than or equal to the distance between the second top headband 2 and the adjacent free end of the fixing strap; in some embodiments, the distance between the first top headband 1 and the adjacent free end of the fixing strap may be greater than the distance between the second top headband 2 and the adjacent free end of the fixing strap; in some embodiments, the free end of the first top headband 1 is provided with a buckle, and the free end of the second top headband 2 is provided with a Velcro; in some embodiments, the free end of the first top headband 1 is provided with a Velcro, and the free end of the second top headband 2 is provided with a buckle.

[0071] It can be understood that the distance between the first top headband 1 and the second top headband 2 should be such that when the fixing strap is assembled to the mask, the first top headband 1 and the second top headband 2 can be located on the left and right sides of the human head respectively, rather than on the same side.

[0072] In a preferred embodiment, the first top headband 1 and the second top headband 2 are symmetrically arranged relative to the centerline of the corresponding fixing straps, that is, located on the left and right sides of the corresponding fixing straps, respectively. The Velcro fastener is located on the first top headband 1, while the buckle is located on the second top headband 2. This allows the first top headband 1, which has a longer strap length, to have a longer fold-back range after passing through the buckle eyelet. By selecting the contact position between the hook layer and the velvet layer, a more precise fixation and adaptation to different head sizes can be achieved. The second top headband 2, which has a shorter strap length, is less likely to shake or swing during the positioning process, allowing the first headband assembly to be quickly and smoothly passed through the buckle eyelet.

[0073] In an optional embodiment, please refer to Figure 3 again. The first top headband 1 is located on the left side of the corresponding fixing strap, and the free end of the first top headband 1 is provided with a Velcro. The second top headband 2 is located on the right side of the same fixing strap, and the free end of the second top headband 2 is provided with a buckle. This head assembly can be convenient for left-handed users to use. They can grasp the first top headband 1 with Velcro with their left hand and fix the second top headband 2 with the buckle with their right hand, insert the first top headband 1 into the eyelet of the buckle and fold it back until the hook layer is in contact with its own suede layer.

[0074] In another optional embodiment, please refer to Figure 4 again. The first top headband 1 is located on the right side of the corresponding fixing strap, and the free end of the first top headband 1 is provided with a Velcro. The second top headband 2 is located on the left side of the same fixing strap, and the free end of the second top headband 2 is provided with a buckle. This can be convenient for right-handed users to use. They can grasp the first top headband 1 with Velcro with their right hand and fix the second top headband 2 with the buckle with their left hand, insert the first top headband 1 into the eyelet of the buckle and fold it back until the hook layer is in contact with its own suede layer.

[0075] In this way, the headband assembly can meet the usage habits of different users, making the connection process more convenient and in line with individual preferences.

[0076] Of course, when the length of the first top headband 1 is smaller than the length of the second top headband 2, the above-mentioned various settings are also available. This method has a variety of combined deformation types and can meet users' various headband styling requirements.

[0077] In yet another embodiment, the angles formed between the first top headband 1 and / or the second top headband 2 of the two top headbands and the corresponding fixed straps can be acute, obtuse, or right. Preferably, the angles formed between the two top headbands and the corresponding fixed straps are 80°-100°. In some embodiments, the angles formed between the two top headbands and the corresponding fixed straps are equal.

[0078] The corresponding fixing strap in the connection between the top headband and the corresponding fixing strap is the upper headband 3 in this embodiment. That is, the angle between the two top headbands and the upper headband 3 is 80°-100°. In a preferred embodiment, the first top headband 1 and the second top headband 2 are symmetrically arranged relative to the centerline of the upper headband 3 and are equidistant from the intermediate connecting strap. In other words, the distance between the first top headband 1 and the left headband 5 can be equal to the distance between the second top headband 2 and the right headband 6.

[0079] In this embodiment, the angle refers to the inner angle between the top headband and the corresponding fixing strap, where the inner side can be understood as the side close to the central area of ​​the back of the human head. An acute angle of the top headband means that the first top headband 1 and / or the second top headband 2 extend inwardly and obliquely from their connection with the fixing strap, thereby forming a relatively compact structure. An obtuse angle of the top headband means that the first top headband 1 and / or the second top headband 2 extend outwardly and obliquely from their connection with the fixing strap, thereby forming a relatively loose structure. A right angle of the top headband means that the first top headband 1 and / or the second top headband 2 extend vertically outwardly from their connection with the fixing strap, perpendicular to the corresponding fixing strap.

[0080] In some embodiments, the angle between the first top headband 1 and the corresponding fixing strap can be different from the angle between the second top headband 2 and the corresponding fixing strap; in some embodiments, the angle between the first top headband 1 and the corresponding fixing strap can be the same as the angle between the second top headband 2 and the corresponding fixing strap.

[0081] In a preferred embodiment, the angle between the first top headband 1 and the corresponding fixing strap is the same as the angle between the second top headband 2 and the corresponding fixing strap, and is an acute angle. Under this embodiment, the first top headband 1 and the second top headband 2 can be connected to form a symmetrical distribution, and the pressure around the head is balanced, avoiding excessive pressure or discomfort on specific parts, which helps to provide a more comfortable wearing experience. The acute-angle design reduces the gap between the headband assembly and the head, ensuring that the headband assembly fits tightly to the head, preventing the headband assembly from shifting or loosening during use, and enhancing the overall performance and wearing experience of the headband assembly.

[0082] This embodiment is used to illustrate the specific structure of multiple fixing belts in the fixing main part.

[0083] The plurality of fixing straps include:

[0084] An upper headband 3, an intermediate connecting band and a lower headband 4, wherein the two ends of the intermediate connecting band are respectively connected to the middle areas of the upper headband 3 and the lower headband 4; wherein the intermediate connecting band includes a left headband 5 and a right headband 6 that are relatively inclined, so as to enclose together with the upper headband 3 and the lower headband 4 to form a variable-diameter wrapping cavity.

[0085] Specifically, from top to bottom, there are the upper headband 3, the middle connecting band, and the lower headband 4. The upper headband 3 is configured to connect the middle connecting band and the top headband, and the middle connecting band is configured to connect the upper headband 3 and the lower headband 4. The upper headband 3, the middle connecting band, and the lower headband 4 can form a semi-enclosed cavity structure to wrap the back of the human head, while the upper headband 3 and the two connected top headbands can form a fully enclosed structure to wrap the top of the human head. In some embodiments, the upper headband 3 is a horizontally extending straight strip that can be attached to the mask at the same height of the human head. It has the characteristic of stable positioning, which facilitates the connection of the two top headbands to the upper headband 3. In some embodiments, the lower headband 4 can be arranged parallel to the upper headband 3 or at a certain angle.

[0086] Among them, the two ends of the left headband 5 and the right headband 6 are respectively connected to the upper headband 3 and the lower headband 4 to form a variable diameter wrapping cavity. The left headband 5 and the right headband 6 are relatively tilted and have a distance, that is, the two have a certain angle or slope in the horizontal direction, and the inclination directions of the two are close to each other. The variable diameter wrapping cavity can be understood to have different inner diameters or diameters in the height direction, as the area of ​​the wrapping cavity changes from top to bottom. In some embodiments, the variable diameter wrapping cavity is an inverted trapezoid, that is, the left headband 5 and the right headband 6 extend outward from the lower headband 4 to the upper headband 3 at the same inclination angle, so that the area of ​​the wrapping cavity gradually increases from bottom to top to adapt to the curve and shape changes of the back of the human head, which can achieve better fitting and wrapping effects, reduce the overall weight, and provide users with a more comfortable wearing experience.

[0087] It will be appreciated that the variable diameter wrap cavity is typically located in the middle of the entire headband assembly, and the distance between one free end of the upper headband 3 and / or lower headband 4 and the central axis of the variable diameter wrap cavity, as well as the distance between the other free end and the same central axis, can be selected within a wide range. Preferably, the free ends of the upper headband 3 and / or lower headband 4 are symmetrical relative to the central axis of the variable diameter wrap cavity, resulting in an aesthetically pleasing appearance and ease of adjustment.

[0088] In some embodiments, the lengths of the upper headband 3 and the lower headband 4 may be the same or different, and the length of the middle connecting band may be smaller than any one of them; in some embodiments, the widths of the upper headband 3, the middle connecting band and the lower headband 4 may be the same or different; in some embodiments, the width of at least one of the upper headband 3, the middle connecting band and the lower headband 4 may be the same width or a gradient width; and at least one of the gradient widths may be a width that gradually increases or decreases from bottom to top.

[0089] In a preferred embodiment, the lower headband 4 is arranged non-parallel to the upper headband 3. Specifically, the upper headband 3 can be arranged horizontally, while the lower headband 4 is bent toward the neck area of ​​the human body to form an arc-shaped opening, and the angle of the arc-shaped opening is an obtuse angle. In this embodiment, the lower headband 4 is bent at its central area to form an inverted V-shaped structure with the opening facing the neck of the human body. The angle of the opening should be an obtuse angle to facilitate the two symmetrical sides of the V-shaped lower headband 4 to tilt downward and extend close to the direction of the human neck, so that when assembled with the mask, it can go around the back of the ear and take into account the neck area of ​​the human body to achieve a 3D wrapping effect.

[0090] In another embodiment, the fixing main part and the fixing auxiliary part are connected as one piece by any one of stitching, hinging, crimping, ultrasonic welding and high-frequency connection, and / or at least two of the multiple fixing straps are connected as one piece by any one of stitching, hinging, crimping, ultrasonic welding and high-frequency connection.

[0091] Specifically, as mentioned above, each fixing strap and top headband has a free end and a fixed end. The fixed end is between multiple connected fixing straps, and the position where the corresponding fixing strap is connected to the top headband. The first top headband 1 and the second top headband 2 can be connected to the upper headband 3 in a variety of ways to form a fixed end; the first top headband 1 or the second top headband 2 can be connected to the fixed connector 7 in a variety of ways to form a fixed end; the right headband 6, the left headband 5 and the upper headband 3 can be connected together in a variety of ways to form a fixed end; the right headband 6, the left headband 5 and the lower headband 4 can be connected together in a variety of ways to form a fixed end. The above multiple connection methods have different characteristics and applicable scopes. The most appropriate connection method can be selected according to the specific materials, design requirements and manufacturing processes. In this embodiment, the connection method of each fixed end can be partially the same or completely the same, or completely different.

[0092] It should be noted that sewing can be done by sewing together the edges or contact portions of two connecting components (hereinafter, the upper headband 3 and the first top headband 1 are used as examples). For example, the end of the first top headband 1 is sewn to the right portion of the upper headband 3 to form a continuous headband structure by sewing their edges.

[0093] The hinge connection can be achieved by installing hinges on the upper headband 3 and the first top headband 1 so that they can rotate or swing relative to each other;

[0094] Pressing can be done by pressing the contact surfaces of the upper headband 3 and the first top headband 1 tightly together, creating a connection by using pressure and friction to form a firmly fixed end;

[0095] Ultrasonic welding can utilize the heat energy generated by ultrasonic vibration to heat and fuse the contact surfaces of the upper headband 3 and the first top headband 1 together to form a strong fixed end;

[0096] The high-frequency connection can utilize the heat energy generated by the high-frequency electromagnetic field to heat the contact surfaces of the upper headband 3 and the first top headband 1 and fuse them together to form a solid fixed end.

[0097] Of course, the upper headband 3 and the first top headband 1 can also be connected and formed using other connection processes. The specific connection process and method may vary depending on the material or shape of the upper headband 3 and the first top headband 1. The above examples are merely to illustrate the functions and principles of different connection methods. In actual applications, you can flexibly choose.

[0098] To sum up, the fixed main part can form a semi-enclosed structure. When the fixed main part is assembled with the mask in the mask system, it is wrapped around the back of the human head to achieve preliminary positioning and fixation of the mask. The two top headbands in the fixed sub-part can be connected to form a fully enclosed structure, which is wrapped around the top of the human head. Therefore, after the mask is initially fixed, the wrapping of the top and the head is increased by the fixed sub-part to achieve enhanced fixation of the mask. No 3D technical support is required. The combination of the two can form a 3D wrapping effect, which is flexibly applicable to mask systems with and without forehead support, and better achieves head wrapping, simplicity of manufacturing, and a wide range of applications at a low cost. At the same time, the multi-point adjustable feature better achieves wearing comfort. This method has a variety of combined deformation types, which meets the user's various headband styling requirements and provides a better head fixation solution in the field of ventilation therapy.

[0099] Another aspect of the present invention is to provide a mask system, in which the headband assembly as described above is configured.

[0100] As for the above-mentioned mask system embodiment, since it is basically similar to the headband assembly embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the headband assembly embodiment.

[0101] It should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referenced to each other.

[0102] It should also be noted that, in this article, the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "inside", "outside", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, relational terms such as "first" and "second" are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations, nor can they be understood as indicating or implying relative importance. Moreover, the term "comprises" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or terminal device that includes a series of elements includes not only those elements, but also includes other elements that are not explicitly listed, or also includes elements that are inherent to such process, method, article or terminal device.

[0103] The headband assembly and mask system provided by the present application have been described in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is intended only to facilitate understanding of the present application, and the contents of this specification should not be construed as limiting the present application. Furthermore, those skilled in the art will appreciate that various modifications may be made to the specific implementation methods and scope of application based on the present application. It is not necessary and impossible to exhaustively enumerate all implementation methods here, and any obvious variations or modifications derived therefrom remain within the scope of protection of the present application.

Claims

1. A headband assembly, wherein: It comprises a main fixing part and a secondary fixing part, wherein the secondary fixing part is connected to the upper part of the main fixing part, the main fixing part is configured to be wrapped around the back of the human head, and the secondary fixing part is configured to be wrapped around the top of the human head; wherein, The fixed main part comprises: A plurality of fixing straps, at least two of the plurality of fixing straps are connected, and a free end of each fixing strap is provided with a connection point, and the connection point is used to be assembled to the mask system; The fixed sub-unit comprises: Two top headbands are arranged side by side and spaced apart, and the free ends of the two top headbands are connected by a fixing structure; Wherein, the plurality of fixing belts include: An upper headband, a middle connecting band and a lower headband, wherein two ends of the middle connecting band are respectively connected to the middle areas of the upper headband and the lower headband.

2. A headband assembly according to claim 1, wherein: The fixing structure includes a fixing connecting member and an adjustable connecting member which cooperate with each other. The fixing connecting member is arranged on one of the two top headbands, and the adjustable connecting member is arranged on the other of the two top headbands.

3. A headband assembly according to claim 2, wherein: The lengths of the straps of the two top headbands are different, and the fixed connecting piece is arranged on the top headband with the shorter strap.

4. A headband assembly according to claim 2 or 3, wherein: The fixed connecting member includes a buckle, and the adjustable connecting member includes a Velcro.

5. A headband assembly according to any one of claims 1 to 4, wherein: in, The angles between the two top headbands and the correspondingly connected fixing straps are 80°-100° respectively.

6. A headband assembly according to any one of claims 1 to 5, wherein: The angles between the two top headbands and the correspondingly connected fixing straps are equal.

7. A headband assembly according to any one of claims 1 to 6, wherein: The middle connecting band comprises a left headband and a right headband which are arranged relatively obliquely, and the left headband and the right headband are enclosed together with the upper headband and the lower headband to form a variable diameter wrapping cavity.

8. A headband assembly according to any one of claims 1 to 7, wherein: The lower headband is bent toward the neck area of ​​the human body to form an arc-shaped opening, and the angle of the arc-shaped opening is an obtuse angle.

9. A headband assembly according to any one of claims 1 to 8, wherein: The plurality of fixing straps and the two top head straps have planar features.

10. A headband assembly according to any one of claims 1 to 9, wherein: The two top headbands are connected to the upper headband, and the distances between the two top headbands and the middle connecting band are equal.

11. A headband assembly according to any one of claims 1 to 10, wherein: The fixing main part and the fixing auxiliary part are integrally formed by any one of seaming, hinged connection, crimping, ultrasonic welding and high-frequency connection; and / or At least two of the plurality of fixing belts are connected and formed into one piece by any one of seaming, hinged connection, crimping, ultrasonic welding and high-frequency connection.

12. A mask system, wherein: A headband assembly as claimed in any one of claims 1 to 11 is provided.

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