WO2025119009A1 - Headband assembly and mask system - Google Patents

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

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to a Chinese patent application filed with the Chinese 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

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

Background Art

A mask system is a device used to give oxygen to a user or provide positive pressure ventilation support or inhalation therapy. It usually consists of a mask that covers the mouth and nose area, a pipe that connects the mask to an oxygen source or a ventilator, and a headband assembly that positions and fixes the mask in a suitable position on the patient's face. Due to the large differences in heads of different individuals, the headband assembly needs to have good comfort, fit and sufficient adaptability to ensure that the user can achieve conditioning, improvement and treatment functions when wearing the mask system.

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 on 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 a lower wearing firmness and cannot be compatible with the top of the user's head. It can only be used with a mask system with forehead support; and the "crown-shaped" headband assembly is more firm than the "I-shaped" headband assembly, and can be used for mask systems with and without forehead support. However, it requires a large amount of clinical data support for the top of the head to carry out individualized 3D technology construction, and it is extremely difficult to prepare a suitable 3D shape, and the production process is complex and costly.

Overview

In response to the above problems, one of the objects of the present invention is to provide a headband assembly that takes into account the advantages of comfortable and firm wearing, simple and easy manufacturing process, cost savings, and applicability to a wide range of mask types. A second object of the present invention is to provide a mask system.

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

A headband assembly 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 wrap around the back of the human head, and the secondary fixing part is configured to wrap 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.

Since both the main fixing part and the auxiliary fixing part are used to position and fix the mask in the mask system in a relatively comfortable position on the face, it can be ensured that the mask will not loosen or fall off during use, so as to provide good sealing and achieve the function of conditioning, improvement and treatment of the mask system. The main fixing part and the auxiliary fixing part are set from the bottom to the top of the human head. The main fixing part is designed to surround the back of the human head, while the auxiliary fixing part is designed to surround the top of the human head to achieve a 3D wrapping effect on the head.

As one of the preferred solutions, the fixing structure includes a fixed connecting member and an adjustable connecting member that cooperate with each other, the fixed 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.

By setting a fixed connecting piece and an adjustable connecting piece, the size of the fully enclosed structure formed by connecting the two top headbands can be changed, so as to adjust the tightness of the fixed sub-part to adapt to different head sizes.

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

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

As one of the preferred solutions, the angles between the two top headbands and the correspondingly connected fixing straps are 80°-100° respectively.

As one of the preferred solutions, the angles between the two top headbands and the correspondingly connected fixing straps are equal.

In this embodiment, the first top headband and the second top headband can form a symmetrical distribution after being connected, which balances the pressure around the head and avoids excessive pressure or discomfort on specific parts, helping to 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 the head tightly, preventing the headband assembly from shifting or loosening during use, and enhancing the overall performance and wearing experience of the headband assembly.

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 together with the upper headband and the lower headband enclose a variable diameter wrapping cavity.

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 body, better fit and wrapping effects can be achieved, reducing the overall weight and providing users with a more comfortable wearing experience.

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.

In this embodiment, the lower headband 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, so that the two symmetrical sides of the V-shaped lower headband can be tilted and extended downward to the direction close to the neck of the human body, 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, achieving a 3D wrapping effect.

As one of the preferred solutions, the plurality of fixing straps and the two top head straps have planar features.

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.

As one of the preferred solutions, the main fixing part and the auxiliary fixing 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.

The second aspect of the present invention further provides a mask system, which is equipped with the headband assembly provided by the first aspect of the present invention.

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

An embodiment of the present invention proposes a headband assembly, including a main fixing part and a secondary fixing part, wherein the secondary fixing part is connected to the top of the main fixing part, the main fixing part is configured to be wrapped around the back of the human head area, and the secondary fixing part is configured to be wrapped around the top of the human head area; wherein the main fixing part includes: 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 a mask system; the secondary fixing part includes: 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 include: 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.

By adopting the technical solution of the present application, the fixed main part can form a semi-enclosed cavity structure, and 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 initial positioning and fixation of the mask, and 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 a low cost. At the same time, the multi-point adjustable feature better achieves wearing comfort.

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.

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.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solution of the present application, the drawings required for use in the description of the present application will be briefly introduced below. 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 paying any creative labor.

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

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

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

FIG. 4 is a schematic diagram of the unfolded structure of a headband assembly according to another embodiment of the present application.

Description of reference numerals:
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.

Detailed Description

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

Figures 1 and 2 respectively show the structural schematic diagrams of the "I-shaped" headband assembly and the "crown-shaped" headband assembly in the prior art. Among them, the "I-shaped" headband assembly is connected to the mask in the mask system through four connection points, including two upper headbands and lower headbands arranged nearly in parallel, and the two ends of the upper headband and the lower headband serve as two connection points for connecting with the mask. The middle part of the upper headband and the lower headband is connected as a whole through a longitudinal connecting belt to form a configuration resembling the character "I". It can be seen that during use, the upper headband can be connected to the forehead support part of the mask, and the lower headband is connected to the mouth and nose support part of the mask, but it cannot fix the top of the user's head, and no 3D enveloping effect is formed. The wearing firmness is low, and there are few types of applicable masks, which has great limitations.

The "crown-shaped" headband assembly is connected to the mask in the mask system through four connection points, including two upper and lower headbands that are set nearly parallel. The upper and lower headbands are respectively located on elliptical connecting straps that adapt to the back of the user's head. Since the shape of the elliptical connecting strap can fit on the top of the user's head, it 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 or without forehead support. However, in the process of building a fit with the top of 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 model.

According to the different structures of the mask, the structures of the forehead support part and the mouth and nose support part are also different. Therefore, the forehead support part mentioned in this article can be understood as a part of the mask that is opposite to the user's forehead, and the mouth and nose support part can be understood as another part of the mask that is opposite to the user's mouth and nose.

It can be seen that the existing headband assemblies 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.

In view of this, the present invention aims to provide a headband assembly, as shown in Figures 3 and 4, which respectively show exemplary headband assemblies according to some embodiments of the present application. The headband assembly includes a fixed main part and a fixed sub-part, the fixed sub-part is connected above the fixed main part, the fixed main part is configured to be wrapped around the back of the human head area, and the fixed sub-part is configured to be wrapped around the top of the human head area; wherein the fixed main part 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-part includes: two top headbands arranged side by side, the free ends of the two top headbands are connected by a fixed structure, the plurality of fixing straps include: 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 area of the upper headband and the lower headband.

Specifically, the main fixing part and the auxiliary fixing part are used to position and fix the mask in the mask system in a relatively comfortable position on the face, ensuring that the mask will not loosen or fall off during use, so as to provide good sealing and achieve the function of conditioning, improvement and treatment of the mask system. The main fixing part and the auxiliary fixing part are set from the bottom to the top of the human head. The main fixing part is designed to surround the back of the human head, while the auxiliary fixing part is designed to surround the top of the human head to achieve a 3D wrapping effect on the head.

Specifically, the multiple fixing straps in the fixing main part refer to straps that are partially or completely different in position, structure, shape and size, but have the function of connecting the mask to the human head. At least two fixing straps are connected to each other, which may mean: all ends of one or more fixing straps are connected to the ends or belt bodies of other fixing straps, while all ends or part of the ends of other fixing straps are not connected; it may also mean: part of the ends of one or more fixing straps are connected to the ends or belt bodies of other fixing straps, and the remaining ends are not connected to other fixing straps. Thus, the multiple fixing straps can form a continuous semi-enclosed structure to wrap around the back of the human head area, and fix the mask on the human face with the back of the human head area as a support point.

In this embodiment, each fixing belt has a free end and a connection point 9. The free end may refer to an end of a plurality of connected fixing belts that is not fixed or connected, and corresponds to a fixed end, and a fixed end is a position where a plurality of connected fixing belts are connected. As a specific explanation, if the two ends of a fixing belt are respectively connected to one end of two other fixing belts, then all ends of the fixing belt are fixed ends, one end connected to the two other fixing belts is a fixed end, and the other end is a free end.

Among them, the free end usually has a specific structure or feature. The embodiment of the present invention configures a connection point 9 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, so as to preliminarily fix the mask in the back of the head area of the human body. It should be understood that in this embodiment, the mask system has a fixed 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 fixed 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 this document does not make specific limitations on this.

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

More specifically, the two top headbands are connected to a fixing band that is closest to the top headband among the multiple fixing bands in the fixing main part, so that the fixing sub-part is located above the fixing main part. The two top headbands are arranged side by side, which can be understood as both being connected to the same side of the corresponding fixing bands, and there is a distance between the two. 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 is a constant width or a gradient width, and the top headband with a gradient width can be a width that gradually increases or decreases from close to the corresponding fixing band to the outside direction.

Wherein, the two ends of the middle 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 are upper and lower split structures, and the middle part is integrally formed by the middle connecting band. Wherein, the distance between the upper headband 3 and the lower headband 4 is equal to the vertical belt length of the middle connecting band. In some embodiments, the middle connecting band can be vertical, that is, the distance between the upper headband 3 and the upper headband 4 is the belt length of the middle connecting band. In some embodiments, the middle 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 length of the middle connecting band.

In this embodiment, the upper headband 3 and the lower headband 4 are respectively located at different heights of the back of the human head, evenly distributing the weight of the head, reducing the pressure of the headband on the head, and improving the wearing comfort. When wearing or taking off the headband, the upper headband 3 and the lower headband 4 can be adjusted respectively to adjust the length and tightness of the headband to suit different users and different head structures, and at the same time, it is more convenient to put on and take off the headband without being interfered by the user's hairstyle or ears.

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.

In some embodiments, the two top headbands are connected by a fixed structure so that both ends of the two top headbands are in a connected state, thereby forming a fully enclosed structure that fits the top area of the human head in a wrapped manner. For a mask system without forehead support, after the fixed main part is initially fixed, the fixed auxiliary part increases the wrapping of the top and the head to enhance the fixation of the mask. Thus, the two parts wrap specific areas of the head respectively to form a 3D wrapping effect, which is suitable for both mask systems with forehead support and mask systems without forehead support, and is firm and comfortable to wear.

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

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 protrusions, depressions or changes. The planar fixing strap 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.

Thus, the overall planar fixed main part and the fixed auxiliary part cooperate to form a 3D wrapping effect, and can fit the human head well. It can be understood that compared with the 3D crown headband, the planar shape is easier to design, mold making and implement the production process. In some embodiments, conventional simple splicing, molding and connection processes can be used to make the planar headband assembly, which reduces the cost of raw materials and does not require complex molds and production equipment. The production process is simple and easy, the material utilization rate is high, and the total expenditure cost is greatly reduced.

In some embodiments, the fixed structure includes a fixed connector 7 and an adjustable connector 8 that cooperate with each other. 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 that provides the adjustable connector 8 with adjustable size connection. The relative position between the fixed connector 7 and the corresponding headband assembly remains unchanged, and the adjustable connector 8 is installed on the other top headband. The relative position between the fixed connector 7 and the corresponding headband assembly can be changed, so that the size of the fully enclosed structure formed by the connection of the two top headbands can be changed to adjust the tightness of the fixed secondary part to adapt to different head sizes. It is worth mentioning that the connection point 9 of the fixed belt can be the same as the structure of the adjustable connector 8 of the top headband, and cooperate with the fixed point on the mask, and the fixed point on the mask can adopt the structure of the fixed connector 7 of the present application to adjust the tightness of the fixed main part to adapt to different head sizes. Therefore, the multi-point adjustable feature better realizes the comfort of wearing.

In some embodiments, the fixed connector 7 may be a hook, buckle, button, buckle, etc., fixed to the corresponding top headband. In some embodiments, the adjustable connector 8 may be a retractable strap, a stretchable elastic strap, or a strap with adjustment holes that cooperates with the fixed connector 7, and the user may fix the adjustable connector 8 at different positions or holes on the fixed connector 7, thereby achieving personalized adjustment of the headband. In some examples extending from this embodiment, one of the top headbands itself may serve as an adjustable connector 8, that is, the top headband has an adjustable length or stretchable property, and the top headband is fixed to another top headband with a fixed connector 7. In some embodiments, the adjustable connector 8 may 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 fixed strap may be the same as that of the top headband, and both are retractable and elastic.

More specifically, the fixed connector 7 includes a buckle, and the adjustable connector 8 includes a Velcro. In this embodiment, the buckle can be a Japanese-shaped adjustment buckle, which is composed of a buckle strap with two holes and a buckle ring with a fixed column. One of the holes is configured to allow one of the top headbands to pass through and thus be fixed to the top headband, while the other hole can be passed through by the other top headband. Wherein, the other top headband is provided with a Velcro, and the Velcro can be horizontally spliced with a soft suede layer and a rough hook layer, and when the suede layer and the hook layer are in contact, the hook surface can hook the suede. In some embodiments, the suede layer and the hook layer can be arranged on the same surface of the corresponding top headband, and are in different areas along the length direction of the top headband. When the end of the top headband with the suede layer or the hook layer passes through the other hole of the buckle, the end of the top headband is folded back and contacts with its own hook layer or suede layer, so that the two top headbands are connected around to form a fully enclosed structure.

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, and 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 provided 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, and 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 can have a gap with the end of the top headband.

In this way, through the buckles and Velcro that work together, 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.

As a specific explanation of this embodiment, the lengths of the two top headbands are different, and the fixed connector 7 is provided on the top headband with the shorter length. Specifically, the different lengths of the two top headbands can be understood as the different distances of the top headbands extending outward from the connection with the fixing belt. In the case where the length of the first top headband 1 of the two top headbands is greater than the length of the second top headband 2, the first top headband 1 and the second top headband 2 are both provided on the belt of the corresponding fixing belt. 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.

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, but not on the same side.

In a preferred embodiment, the first top headband 1 and the second top headband 2 are symmetrically arranged relative to the center line of the corresponding fixing band, that is, they are located on the left and right sides of the corresponding fixing band respectively. The Velcro is located on the first top headband 1, and the buckle is located on the second top headband 2, so that the first top headband 1 with a longer body length has a longer folding range after passing through the eye of the buckle, and by selecting the contact position between the hook surface layer and the velvet layer, a more precise fixation and adaptability to the needs of different head sizes can be achieved; and the second top headband 2 with a shorter body length can be convenient for users to not shake or swing during the positioning process, so as to quickly and smoothly pass the first headband assembly through the eye of the buckle.

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, the head assembly can be convenient for users who are accustomed to using their left hand 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.

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, which 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.

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.

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 needs.

In another embodiment, the angle 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 an acute angle, an obtuse angle, or a right angle. 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.

Among them, the corresponding fixing belt in the connection between the top headband and the corresponding fixing belt is the upper headband 3 of 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 center line of the upper headband 3, and the distances from the middle connecting belt are equal, that is, 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.

In this embodiment, the angle refers to the inner angle between the top headband and the corresponding fixing strap, and the inner side can be understood as the side close to the central area of the back of the human head. The acute angle of the top headband means that the first top headband 1 and/or the second top headband 2 extend inwardly from the connection with the fixing strap to the outside, which can form a more compact structure; the obtuse angle of the top headband means that the first top headband 1 and/or the second top headband 2 extend outwardly from the connection with the fixing strap to the outside, which can form a looser structure; the right angle of the top headband means that the first top headband 1 and/or the second top headband 2 extend vertically outwardly from the connection with the fixing strap, and are perpendicular to the corresponding fixing strap.

In some embodiments, the angle between the first top headband 1 and the corresponding fixing strap may 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 may be the same as the angle between the second top headband 2 and the corresponding fixing strap.

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 both are acute angles. 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.

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

The plurality of fixing belts include:

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 which are relatively inclinedly arranged, so as to enclose together with the upper headband 3 and the lower headband 4 to form a variable diameter wrapping cavity.

Specifically, from top to bottom, there are the upper headband 3, the middle connecting band and the lower headband 4, wherein 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 surround to form a semi-enclosed cavity structure for wrapping the back of the human head area, while the upper headband 3 and the two connected top headbands can surround to form a fully enclosed structure for wrapping the top of the human head area. In some embodiments, the upper headband 3 is a horizontally extending straight strip, which can be attached to the mask along the same height direction of the human head, has the characteristics of stable positioning, and is convenient for the two top headbands to be connected to the belt body of 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.

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 inclined 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 outwardly from the lower headband 4 to the upper headband 3, and the inclination angle is the same, 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 body, which can achieve better fitting and wrapping effects, reduce the overall weight, and provide users with a more comfortable wearing experience.

It can be understood that the variable diameter wrapping cavity is usually located in the middle area of the entire headband assembly, and the distance between one free end of the upper headband 3 and/or the lower headband 4 and the central axis of the variable diameter wrapping cavity and the distance between the other free end and the central axis can be selected within a relatively large range. Preferably, the two free ends of the upper headband 3 and/or the lower headband 4 are symmetrical relative to the central axis of the variable diameter wrapping cavity, with an aesthetically pleasing appearance and easy adjustment.

In some embodiments, the lengths of the upper headband 3 and the lower headband 4 can be the same or different, and the length of the middle connecting band can 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 can 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 is the same width or a gradient width; and at least one of the gradient widths can be a width that gradually increases or decreases from bottom to top.

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 direction of the human body. The angle of the opening should be an obtuse angle, so that the two symmetrical sides of the V-shaped lower headband 4 can be tilted and extended downward to the direction close to the human neck, so that when assembled with the mask, it can bypass the back of the ear and take into account the neck area of the human body to achieve a 3D wrapping effect.

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

Specifically, as mentioned above, each fixing strap and top headband has a free end and a fixed end, and the fixed end is between multiple connected fixing straps, and the corresponding position where the 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 to form a fixed end in a variety of ways; the right headband 6, the left headband 5 and the lower headband 4 can be connected to form a fixed end in a variety of ways. The above multiple connection methods have different characteristics and applicable scopes. The most suitable 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.

It should be noted that the seaming may be sewing the edges or contact parts of two connecting parts (hereinafter both the upper headband 3 and the first top headband 1 are taken as examples) together. For example, the end of the first top headband 1 is sewn to the right part of the upper headband 3, and their edges are sewn to form a continuous headband structure;

The hinge connection may 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;

The crimping may be to press the contact surfaces of the upper headband 3 and the first top headband 1 tightly together, using pressure and friction to create a connection to form a firmly fixed end;

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;

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

Of course, the upper headband 3 and the first top headband 1 can also be connected and formed according to other connection processes, and 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 only used to illustrate the functions and principles of different connection methods. In practical applications, you can flexibly choose.

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 and fitted on 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 and fitted on 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 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.

Another aspect of the present invention is to provide a mask system, wherein the headband assembly as described above is configured.

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.

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 or similar parts between the various embodiments can be referenced to each other.

It should also be noted that, in this article, the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, relational terms such as "first" and "second" are only 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 "include" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or terminal device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or terminal device.

The headband assembly and mask system provided by the present application are described in detail above. The principle and implementation method of the present application are described in this article using specific examples. The description of the above embodiments is only used to help understand the present application, and the content of this specification should not be understood as limiting the present application. At the same time, for those skilled in the art, according to the present application, there will be different forms of changes in the specific implementation methods and application scopes. It is not necessary and impossible to list all the implementation methods here, and the obvious changes or modifications derived therefrom are still within the protection scope of the present application.

Claims (12)

A headband assembly, comprising 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 be wrapped around the back of the human head, and the secondary fixing portion 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. A headband assembly according to claim 1, wherein the fixing structure comprises a fixing connector and an adjustable connector that cooperate with each other, the fixing connector is arranged on one of the two top headbands, and the adjustable connector is arranged on the other of the two top headbands. A headband assembly according to claim 2, wherein the lengths of the two top headbands are different, and the fixed connecting member is provided on the top headband with the shorter length. A headband assembly according to claim 2 or 3, wherein the fixed connecting member comprises a buckle, and the adjustable connecting member comprises a Velcro. A headband assembly according to any one of claims 1-4, wherein the angles between the two top headbands and the correspondingly connected fixing straps are 80°-100° respectively. 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. A headband assembly according to any one of claims 1-6, wherein the middle connecting band comprises a left headband and a right headband that are relatively inclined, and the left headband and the right headband together with the upper headband and the lower headband enclose a variable diameter wrapping cavity. A headband assembly according to any one of claims 1-7, 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. A headband assembly according to any one of claims 1-8, wherein the plurality of fixing straps and the two top headbands have planar features. 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. A headband assembly according to any one of claims 1 to 10, wherein 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 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. A mask system, wherein the headband assembly according to any one of claims 1 to 11 is configured.