CN209137670U - Headgear assemblies and mask system - Google Patents

Abstract

The utility model discloses a kind of headgear assemblies and mask systems, the headgear assemblies are planar structure in tiling unfolded state, and the headgear assemblies include being worn on wearing portion (1) and be connected to the two sides for wearing portion (1) and be used to connect the interconnecting piece (2) of breathing mask on head for be bonded；The portion (1) that wears includes the upper headband (11) with predetermined width for being fitted in overhead and the back band (12) for being fitted in back head and being located at below the upper headband (11), wherein the upper headband (11) is domes of the recess portion towards the back band (12).Headgear assemblies provided by the utility model and mask system make headgear assemblies using the material of planar structure, and manufacture craft is relatively simple, and molding is easy, and saves cost.And the headgear assemblies can fit in head, be worn on it on head securely.

Description

Headgear assemblies and mask system

Technical field

The utility model relates to mask technical fields, more particularly to a kind of headgear assemblies and mask system.

Background technique

Mask system wears face, positions mask system in the relative comfort position of face, to protect by headgear assemblies Card wears the comfort of mask system, and then mask system conditioning, improvement and treatment function is better achieved.Headgear assemblies are to connect The primary clustering of junction cover system and human body head since individual's head differs greatly, therefore needs headgear assemblies to have preferable relax Adaptive, docile property and sufficiently large adaptability.It can be seen that reasonable headgear assemblies structure can make most wearing masks Patient can obtain comfort and the good use state of leakproofness.

It uses more headgear assemblies for " four-point " at present, i.e., is connect by 4 points with mask system, relaxed to realize It is suitable to wear mask system.The headgear assemblies of " four-point " generally use " I-shaped " and " crown-shaped ".

Wherein the headgear assemblies of " I-shaped " are as shown in Figure 1, this kind of headgear assemblies structure is simple, its is each when tiling is placed Component can be put in the same plane, but wearing fastness is low, and fixed position enemy top part is not taken into account, and generally can only It is combined with the mask system of forehead support, it is few to be applicable in mask system type.

The headgear assemblies of " crown-shaped " are as shown in Fig. 2, the more I-shaped headband of this kind of headgear assemblies improves the secured of wearing Property, it is provided with positioning in wearer's overhead, the mask system that both can be used for having forehead support also can be used for no forehead support Mask system, but its general each component of when tiling of this headgear assemblies is placed cannot put (mainly head in the same plane Heading tape part cannot be put in the same plane with coupling part), manufacturing process is complicated, needs a large amount of overhead clinical data It supports, more reasonable structural modeling is difficult to construct.

Utility model content

Wear that fastness is low and " emperor the purpose of this utility model is to overcome " I-shaped " headgear assemblies in the prior art The defects such as the moulding of crown type " headgear assemblies is difficult, operating procedure is more, wear comfort is low.

To achieve the goals above, on the one hand the utility model provides a kind of headgear assemblies, and the headgear assemblies are tiling Unfolded state is planar structure, and the headgear assemblies include being worn on wearing portion and be connected to described on head for being bonded Wear the two sides in portion and the interconnecting piece for connecting breathing mask；

The portion of wearing includes upper headband with predetermined width for being fitted in overhead and for being fitted in head Back band on rear side of portion and below the upper headband, wherein the upper headband is arch knot of the recess portion towards the back band Structure.

Preferably, when the headgear assemblies are worn on head, the upper headband with predetermined width has multiple micro- Surface, the center of curvature on the multiple micro- surface is in the same plane.

Preferably, the predetermined width of the upper headband is 16~36mm.

Preferably, the upper headband is not wide structure.

Preferably, the width at the both ends of the upper headband is greater than the width at the intermediate position of the upper headband.

Preferably, domes radius of curvature on the extending direction from both ends to intermediate position becomes larger.

Preferably, the back band includes first band body and the second band body and the company for being connected to the upper headband both ends Connect the first band body and the described second third band body with body；

The third includes the one end for connecting the separate first band body of the first band body and second band with body Body far from described one end with body third tail band and/or be connected to the middle part and second of the first band body in body Band in the third in portion.

Preferably, the third tail band is the domes being oppositely arranged with the upper headband.

Preferably, the interconnecting piece includes being connected to the side headband of the two sides of the upper headband and being connected to institute State the bottom headband of the two sides of back band.

Preferably, one end far from the upper headband of the side headband of every side and the bottom headband far from described One end of back band connects to form connecting band.

Another aspect according to the present utility model, also provides a kind of mask system, and the mask system includes breathing mask And according to headgear assemblies as described above, the breathing mask connects with the interconnecting piece of the headgear assemblies two sides respectively It connects.

Headgear assemblies provided by the utility model and mask system, the domed knot that headgear assemblies pass through setting predetermined width The upper headband of structure, even if so that the headgear assemblies still are able to make the headband group on the basis of tiled state is planar structure The upper headband of part is bonded completely with the crown, excessively tightens the crown, another part upper headband and head without part upper headband occurs The phenomenon that top is detached from；

The headgear assemblies of I-shaped headband compared with the prior art, the utility model can take into account consolidating for overhead It is fixed, improve fastness when patient wears；And crown-shaped headband compared with the existing technology, the headgear assemblies of the utility model exist Tiled state be planar structure on the basis of, can be realized and be bonded with the complete of the crown, in the comparable feelings of the technical effect of realization Under condition, the headgear assemblies manufacturing process of the utility model is relatively easy, and greatly reduces production cost.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of " I-shaped " headgear assemblies in the prior art；

Fig. 2 is the structural schematic diagram of " crown-shaped " headgear assemblies in the prior art；

Fig. 3 is the structural schematic diagram according to headgear assemblies in an embodiment of the utility model；

Fig. 4 is the structural schematic diagram for the upper headband for showing headgear assemblies (upper headband is wide structure)；

Fig. 5 is the structural schematic diagram for showing the upper headband in headgear assemblies (upper headband is the structure that broadens)；

Fig. 6 is the structural schematic diagram for showing connecting portion in headgear assemblies shown in Fig. 3；

Fig. 7 is the structural schematic diagram according to headgear assemblies in another embodiment of the utility model；

Fig. 8 is the structural schematic diagram for showing connecting portion in headgear assemblies shown in Fig. 7；

Fig. 9 is the structural schematic diagram according to headgear assemblies in a further embodiment of the utility model；

Figure 10 is the structural schematic diagram according to headgear assemblies in the another embodiment of the utility model；

Figure 11 is the structural schematic diagram according to headgear assemblies in the another embodiment of the utility model；

Figure 12 is the structural schematic diagram according to headgear assemblies in the another embodiment of the utility model；

Figure 13 is structural schematic diagram (head-type component according to headgear assemblies in the another embodiment of the utility model For two point form connection type)；

Figure 14 is structural schematic diagram (head-type component according to headgear assemblies in the another embodiment of the utility model For two point form connection type)；

Figure 15 is the structural schematic diagram that headgear assemblies provided by the utility model are worn on head；

Figure 16 is the enlarged schematic partial view of the structure in Figure 15.

Description of symbols

1- wears portion；11- upper headband；111- lengthening part；The back 12- band；121- first band body；122- second is with body； 123- third band body；1231- third tail band；Band in 1232- third；2- interconnecting piece；The side 21- headband；211- first position； 212- second position；The bottom 22- headband.

Specific embodiment

Specific embodiment of the present utility model is described in detail below in conjunction with attached drawing.It should be understood that herein Described specific embodiment is only used for describing and explaining the present invention, and is not intended to limit the utility model.

It should be noted that in the absence of conflict, the spy in embodiment and embodiment in the utility model Sign can be combined with each other.

In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width Degree ", " thickness ", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", etc. instructions orientation or positional relationship To be based on the orientation or positional relationship shown in the drawings, it is merely for convenience of describing the present invention and simplifying the description, without referring to Show or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot manage Solution is limitations of the present invention.In addition, " inside and outside " refers to the inside and outside of the profile relative to each component itself.

In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or Implicitly include at least one this feature.

The utility model provides a kind of headgear assemblies, as shown in figure 3, the headgear assemblies are planar junction in tiling unfolded state Structure, the headgear assemblies include for being fitted in wearing portion 1 and be connected to two sides and the use for wearing portion 1 on head In the interconnecting piece 2 of connection breathing mask.The headgear assemblies wear portion 1 include upper headband 11 for being fitted in overhead and For being fitted in back head and being located at the back band 12 of 11 lower section of the upper headband, the back band 12 respectively with the top Both ends with 11 connect, wherein the upper headband 11 is domes of the recess portion towards the back band 12.

Headgear assemblies provided by the utility model, the upper headband of the domed structure by the way that predetermined width is arranged, so that should Even if headgear assemblies still are able to make the upper headband of the headgear assemblies and head on the basis of the unfolded state that tiles is planar structure The phenomenon that top fitting completely excessively tightens the crown without part upper headband occurs, and another part upper headband and the crown are detached from；Phase Than in the I-shaped headband of the prior art, the headgear assemblies of the utility model can take into account the fixation of overhead, patient is improved Fastness when wearing；And crown-shaped headband compared with the existing technology, the headgear assemblies of the utility model are in tiled state On the basis of planar structure, it can be realized and be bonded with the complete of the crown, in the comparable situation of technical effect of realization, this is practical Novel headgear assemblies manufacturing process is relatively easy, and greatly reduces production cost.

When the headgear assemblies are worn on head, the upper headband 11 with predetermined width has multiple micro- surfaces, The center of curvature on the multiple micro- surface is in the same plane.Micro- surface depicted herein, which refers to, is worn on head in headgear assemblies When, headgear assemblies are by certain force, when upper headband 11 is bonded overhead, the fitting overhead of upper headband 11 Surface is formed by multiple micro- surfaces.

In the same plane, above-mentioned plane is to be formed after headgear assemblies wearing is stablized to the center of curvature on multiple micro- surfaces Stablize central plane, which is virtual plane, it is to be appreciated that since the wearing of different people is relaxed when wearing Suitable point is different, so its stable central plane is different after different people wears upper headband component, each point in the upper headband 11 The center of curvature is located on the stable central plane (that is, upper headband 11 is the multiple with multiple micro- surfaces as described above The center of curvature on micro- surface is in the same plane).

The predetermined width of upper headband 11 can be by when the headgear assemblies be worn on head, the song on micro- surface of upper headband 11 The relationship of the radius of curvature of rate radius and overhead obtains.Specifically, the position that overhead and upper headband 11 fit has the One micro- surface, the radius of curvature on first micro- surface are the first radius；Have corresponding with first micro- surface the in upper headband 11 The radius of curvature on two micro- surfaces, second micro- surface is the second radius, when first micro- surface and the second grade micro-surface structure, area are more next When more consistent, the ideal value of the second radius can be obtained, so that it is also possible that upper headband 11 is pasted to the greatest extent with overhead It closes.In this case, the center of curvature on first micro- surface and second micro- surface is all at same plane (i.e. stable central plane) On.

Specifically, as shown in Figure 15 and Figure 16, the overhead of upper headband and wearer fit, and are with the A point of overhead Example, A point nearby constitute micro- surface of a microcosmic small Δ S, and the radius of curvature and A point that R is micro- surface of Δ S are to Δ S Micro- surface the center of curvature distance.Analogize in this way, the position that overhead is bonded with upper headband 11 is with multiple Δ S's Micro- surface, micro- surface composition overhead of these Δs S.Upper headband 11 has A ' point corresponding with A point, and A ' point nearby constitutes one Micro- surface of a microcosmic small Δ S ', r be Δ S ' micro- surface radius of curvature and A ' point to micro- surface of Δ S ' song The distance at rate center.Micro- surface of multiple Δ S ' is capable of forming the surface of upper headband 11 being bonded with overhead.

When the space structure of the space structure of the plane of Δ S ' and Δ S plane is substantially equal to identical, what is formed is upper Headband 11 can be bonded overhead very much when in use.When the space structure of Δ S ' is substantially equal to the space structure of Δ S, obtain To the relationship of r and R are as follows:

R=kR+m；

Wherein k is parameter, and related to the design structure of headband, anchor point, material property, m is offset.

The material of usual headgear assemblies has certain elasticity, and the space structure of the space structure and Δ S that allow Δ S ' exists There is deviation in setting range, obtain the deviation range Δ r of r, if width when upper headband tiled state at A ' is d, obtains:

D=k ' Δ r cos θ+m '；

Wherein, k ' is corrected parameter, and angle of the θ between Δ r and d, m ' is correction value.

By the width value of available one optimal upper headband 11 of above-mentioned formula, so as to guarantee upper headband and the crown The phenomenon that fitting completely will not occur part upper headband and excessively tighten the crown, and another part upper headband and the crown are detached from；To make The stability for obtaining entire headgear assemblies is good.

Preferably, the predetermined width of the upper headband 11 is 16~36mm.When the width value of upper headband 11 is smaller It is good with the compactness of overhead, but stability is poor, and headband is easy relaxation；When width value is larger, its stability is good, but pastes It is right poor, reduce the comfort level of wearer.As needed, upper headband can be determined according to the width d at obtained each point 11 bandwidth, for example, obtained width average value can be obtained into wide top bandwidth, it can also be according to the variation of width Design the upper headband of Curvature varying, it is to be understood that in order to preferably realize upper headband and wearer's overhead be bonded and It is firm, it can also further accurately calculate to obtain the width of upper headband by more detailed calculus or other algorithms.

The width value of upper headband 11 can specifically determine according to the property of different elastic materials of production upper headband 11, thus Realize a variety of plane imperial crown headband designs.In addition, can design upper headband 11 according to property of material etc. is wide shoestring (as shown in Figure 4) or not wide shoestring (as shown in Fig. 5).Design upper headband 11 is not wide structure, can be optimized The service performance of plane headband.

Preferably, the width at the both ends of the upper headband 11 is greater than the width at the intermediate position of the upper headband 11.It is intermediate The width at position is slightly smaller, and when can more prevent upper headband stress, a part of upper headband is excessively tight, the feelings of another part warpage Condition, so that the whole compactness of upper headband is higher；And the width at upper headband both ends is slightly wider greatly, can guarantee the bigger of fitting Fitting area, improve the stability of headgear assemblies.

Preferably, the domes of upper headband 11 radius of curvature on the extending direction from both ends to intermediate position gradually becomes Greatly, enable upper headband 11 more to meet head feature, improve the compactness of upper headband, to enhance the stabilization of headgear assemblies Property.

The characteristics such as width, the radius of curvature at each position of upper headband 11 can according to material property, head feature etc. into The specific design of row, is bonded it preferably with head.

It will also be appreciated that upper headband 11 can be the material splicing of same elasticity or reduce, be stamped to form, top The material that band is also possible to different elasticity is spliced.

In the headgear assemblies, in addition to upper headband 11 fits in overhead, it is also necessary to back band 12 fits in back head, this It is secured that sample enables to the headgear assemblies to wear when interconnecting piece is pulled along the portion 1 of wearing.Wherein, the structure type of back band 12 Can there are many.

In some embodiments, as shown in Fig. 3, Fig. 7 and Fig. 9-Figure 12 and Figure 14, back band 12 with 11 groups of upper headband At unremovably closed loop configuration.User wear when interconnecting piece need to only be connect with headgear assemblies, reduce when after Headband and/or upper headband are between being detachably connected or both for the operating procedure of user when being detachably connected, and are eliminated Existing for the junction low problem of user's wear comfort.

Specifically, as shown in Fig. 3 and Figure 12, the back band 12 includes be connected to 11 both ends of upper headband the The one third band body 123 with body 121 and second with body 122 and the connection first band body 121 and described second with body 122.

In some embodiments, the third includes connect the first band body 121 separate described first with body 123 The third tail band 1231 of one end with body 121 and described second one end far from the first band body 121 with body 122.It is preferred that Ground, the third tail band 1231 are the domes being oppositely arranged with upper headband 11, wherein described be oppositely arranged refers to upper headband The side of the domes indent of the side and third tail band 1231 of 11 domes indent is arranged toward each other.

In another embodiment, as shown in figure 14, third band body 123 can also include being connected to the first band body Band 1232 in the third at 121 middle part and the second middle part with body 122.

Wherein, in the embodiment as shown in Fig. 3, Fig. 7 and Fig. 9-Figure 12, the first band body 121 and described second One end far from the upper headband 11 with body 122 tilts toward each other to be bonded together.The moulding of back band 12 facilitates structure At round and smooth headband and brain contact interface, and structure wide at the top and narrow at the bottom helps so that wearing is stablized.

It is highly preferred that the first band body 121 and described second with the angle formed between body 122 is 20 °~70 °.

Certainly, first band body 121 and the second band body 122 are according to specific design can there are many variations, as in such as Figure 13 institute In the embodiment shown, first band body 121 and second forms the arc shape structure that middle part extends out with body 122.And in such as Figure 14 institute In the embodiment shown, first band body 121 and the second middle part with body 122 are close to each other, and both ends are away from each other, in this way, in Portion is suitable for connecting band 1232 in third.

In the headgear assemblies, the interconnecting piece 2 includes 21 He of side headband for being connected to the two sides of the upper headband 11 It is connected to the bottom headband 22 of the two sides of the back band 12.

Wherein, the side headband 21 of two sides is connected to the tie point of upper headband 11 and back band 12, i.e. three is connected to Together, upper headband 11, side headband 21, back band 12 along round and smooth headband and brain contact interface at connection, is constituted, in head Portion two sides have determined two anchor points, and it is stronger that this anchor point facilitates mask system wearing.

In technical solution provided by the utility model, the two sides of the side headband 21 and back band 12 of 11 two sides of upper headband Bottom headband 22 can be respectively arranged to the connection structure connecting with breathing mask (not shown), i.e. " four-point " connection side Formula (is connect by four points of connection with breathing mask).

In " four-point " connection type, it is preferable that the side headband 21 and bottom headband 22 are mutually flat in unfolded state Row, as shown in Figure 3 and Figure 7.Certainly, side headband 21 and bottom headband 22 not parallel (side headband and bottom head in such as Figure 11 be may also set up Band 12 tilts toward each other, and side headband and bottom headband 12 are separate toward each other in Figure 12), according to the design in the portion of wearing 1 or its Its concrete condition opposite side headband 21 and bottom headband 22, which specifically adjust, can make side headband 21 and bottom headband 22 exhale in connection Head can be more fitted in when inhaling mask.

In addition, may also be arranged on the every side for wearing portion 1, side headband 21 and the separate of bottom headband 22 wear portion 1 One end is connected to each other to form connecting band, as shown in Figure 13 and Figure 14, setting and the breathing mask in the end being connected to each other The connection structure (embodiment as shown in Figure 13 and Figure 14) of connection, i.e. " two point form " connection type (pass through two tie points It is connect with breathing mask).This two point form headband can be by the overhead of user, so that wearing firm；The fitting of back band The stickiness and stability on the portion of wearing and head are further improved in the bilateral symmetry of the back side of head.

It can also be seen that the headgear assemblies are symmetrical structure from structure shown in Figure 13 and Figure 14, it can will wear The upper and lower part in portion 1, which reverses, is worn, without differentiating up and down, so that wearing more convenient.

Herein it should be noted that, it will be understood by those skilled in the art that the portion 1 that wears of headgear assemblies can be with root According to needing to do various other deformations, to meet consumer to a variety of moulding demands of headband, no longer describe one by one herein.

For convenience of the manufacture planar headgear assemblies, it is preferable that the upper headband 11, the back band 12, the side Headband 21 and the bottom headband 22 can be linked together by splicing.The headgear assemblies can be cut into each plane Then components are spliced (such as splicing by modes such as suture, welding or crimping).In this way, material can be saved, and drop Low manufacture difficulty.

Preferably, as shown in figure 3, in every side in the portion of wearing 1, upper headband 11 and back band 12 splice respectively in the side On the opposite both sides of the edge of the side headband 22.

It is further specifically, as shown in Figure 3 and Figure 6, the first position 211 of side headband 21 spliced with upper headband 11 and institute The second position 212 spliced with the back band 12 for stating side headband 21 is provided parallel to structure.That is first position 211 and second Position 212 is parallel to each other, and when subjected to tension, what stress point was located at side headband 21 is located at first position 211 and the to side headband 21 Position between two positions 212, which can fit in head in favor of headgear assemblies in stress, and finely tune Effect is good, will not tilt at certain positions when side headband 21 is affected stress.In addition, in order to reinforce connecting, it can be in upper headband The 11 position setting lengthening part 111 being connect with side headband 21, to increase the length that upper headband 11 is connect with side headband 21, thus So that connection is stronger.

Alternatively, as shown in Fig. 7 or Fig. 8, the 211 opposite side head of first position of the side headband 21 spliced with upper headband 11 The second position 212 spliced with back band 12 with 21 is formed slopely as oblique angle structure.Correspondingly, upper headband 11 with side headband The end of 21 connections is set as the oblique angle structure cooperated with the oblique angle structure.When side headband 21 is affected in this way, the oblique angle structure Sharp corner be stress point, the connecting method is it is also possible that headgear assemblies can fit in head in stress.

The splicing of bottom headband 22 and back band 12 can be as shown in figure 3, the bottom headband 22 of two sides be spelled by whole shoestring It connects the lower end in back band 12 and is extended to form respectively to two sides.

Specifically, as shown in figure 3, the end of the first band body 121 of back band 12 and the second separate upper headband 11 with body 122 Intermediate position of the portion after being engaged with each other with whole shoestring is spliced to form the bottom headband 22 positioned at two sides.It can also be such as Fig. 9 Shown, the first band body 121 of back band 12 and the second band body 122 are connect with shoestring respectively, the separate back band 12 of shoestring The part of extension is respectively formed bottom headband 22.

Certainly, bottom headband 22 may be set to be two parts, the two parts back band 12 two sides and respectively with bottom head Lower end with 22 connects (as shown in Figure 10 and Figure 11).

Certainly, it is not limited to splicing construction as described above herein, above-mentioned splicing construction is to enable headgear assemblies It is preferably bonded the preferred embodiment in head.

It should also be understood that the headgear assemblies can be constituted by way of splicing, but can also be integrally formed, that is, adopt It is integrally cut with planar materials or is integrally formed otherwise, but connecting method is more saved with respect to integrated molding mode Material, and manufacturing process is simpler, saves cost and production efficiency can be improved.Alternatively, it is also possible to be adopted by the way that buckle is arranged It is connected with the mode of clamping and (buckle is respectively set in the first band body 121 of the back band 12 in such as Figure 13 and the second band body 122 3, it is connected together by buckle 3.

Another aspect according to the present utility model also provides a kind of mask system, the mask system include breathing mask with And headgear assemblies as described above, the breathing mask are connect with the interconnecting piece 2 of the headgear assemblies two sides respectively.

The mask system uses headgear assemblies as described above, can to wear securely, and can reduce cost of manufacture, Improve producing efficiency.

Preferred embodiments of the present invention, still, the utility model and unlimited are described in detail in conjunction with attached drawing above In this.In the range of the technology design of the utility model, a variety of simple variants can be carried out to the technical solution of the utility model, It is combined in any suitable manner including each particular technique feature.In order to avoid unnecessary repetition, the utility model To various combinations of possible ways, no further explanation will be given.But these simple variants and combination equally should be considered as the utility model institute Disclosure belongs to the protection scope of the utility model.

Claims (11)

1. a kind of headgear assemblies, which is characterized in that the headgear assemblies are planar structure, the headband group in tiling unfolded state Part includes being worn on wearing portion (1) and be connected to the two sides for wearing portion (1) and for connecting on head for being bonded The interconnecting piece (2) of breathing mask；

The portion (1) that wears includes upper headband (11) with predetermined width for being fitted in overhead and for being fitted in Back head and the back band (12) being located at below the upper headband (11), wherein the upper headband (11) is recess portion described in The domes of back band (12).

2. headgear assemblies according to claim 1, which is characterized in that when the headgear assemblies are worn on head, have The upper headband (11) of predetermined width has multiple micro- surfaces, and the center of curvature on the multiple micro- surface is in the same plane.

3. headgear assemblies according to claim 1, which is characterized in that the predetermined width of the upper headband (11) is 16 ~36mm.

4. headgear assemblies according to claim 3, which is characterized in that the upper headband (11) is not wide structure.

5. headgear assemblies according to claim 4, which is characterized in that the width at the both ends of the upper headband (11) is greater than institute State the width at the intermediate position of upper headband.

6. headgear assemblies according to claim 1, which is characterized in that the domes are from both ends to intermediate position Radius of curvature becomes larger on extending direction.

7. headgear assemblies according to any one of claims 1 to 6, which is characterized in that the back band (12) includes connecting respectively Be connected to the upper headband (11) both ends first band body (121) and the second band body (122) and the connection first band body (121) and Described second third band body (123) with body (122)；

The third includes connecting one end far from the first band body (121) of the first band body (121) and described with body The third tail band (1231) of second one end far from the first band body (121) with body (122) and/or it is connected to described first Band (1232) in the third at the middle part with body (121) and the second middle part with body (122).

8. headgear assemblies according to claim 7, which is characterized in that the third tail band is sets opposite with the upper headband The domes set.

9. headgear assemblies described in any one of -6 according to claim 1, which is characterized in that the interconnecting piece (2) includes point It is not connected to the side headband (21) of the two sides of the upper headband (11) and is connected to the bottom of the two sides of the back band (12) Headband (22).

10. headgear assemblies according to claim 9, which is characterized in that the side headband (21) of every side it is separate One end of the upper headband (11) connects to form connecting band with one end far from the back band (12) of the bottom headband (22).

11. a kind of mask system, which is characterized in that the mask system includes breathing mask and according to claim 1 in -10 Headgear assemblies described in any one, the breathing mask are connect with the interconnecting piece (2) of the headgear assemblies two sides respectively.