CN205287177U

CN205287177U - Breathing mask

Info

Publication number: CN205287177U
Application number: CN201521138757.3U
Authority: CN
Inventors: 詹谊锋; 庄志
Original assignee: Beijing Delightful Harmony Jia Ye Medical Science And Technology Co Ltd
Current assignee: Beijing Ka Yip Yee medical Polytron Technologies Inc
Priority date: 2015-12-31
Filing date: 2015-12-31
Publication date: 2016-06-08
Anticipated expiration: 2025-12-31

Abstract

The utility model provides a breathing mask, this breathing mask of includes: and a frame. The forehead support frame, it has first connecting portion, but first connecting portion pivot be connected to the frame to make the forehead support frame or deviate from the swing of patient's forehead towards patient's forehead, and adjusting means, its cover is established on first connecting portion to rotatably being connected to the frame, wherein being provided with the protruding portion in lateral wall and the adjusting means's of the first connecting portion of forehead support frame one of them of inside wall, be provided with the regulation oblique orbit on another, the protruding portion is along adjusting the oblique orbit slidable, with the rotation through adjusting means, and the swing of drive forehead support frame. When this breathing mask used, singlehanded rotation regulation member just can make the swing of forehead support frame, and the patient can seek the most comfortable position according to the personal feeling, need not other people help, and it is very convenient that the operation is got up. And the simple structure of this regulative mode, spare part quantity are seldom, therefore manufacturing process is simple, manufacturing cost is lower.

Description

Breathing mask

Technical field

This utility model relates to breathing mask technical field, more particularly to a kind of breathing mask.

Background technology

The main method treating obstructive sleep apnea low-ventilatory syndrome (OSAHS) at present is continuous positive pressure venti lation (CPAP). CPAP typically requires patient's long-time (such as whole night) and wears breathing mask, and therefore the experience of patient is affected very big by wearing comfort. If patient feels that wear comfort is inadequate, it is possible to refusal treatment, or often adjust the position of breathing mask when wearing. Especially in the patient's unconscious touching to breathing mask at night, it is very easy to cause the gas leakage in breathing mask and affects therapeutic effect.

Existing major part breathing mask is equipped with forehead support frame. Forehead support frame is resisted against on the forehead of patient, it is possible to use the support force that forehead provides alleviates the breathing mask constriction to face. But, due to the difference of ethnic group, age and individuality, for different patients, the height of its forehead is different. The forehead 100 that solid line in Fig. 1 and dotted line represent represents the height difference of forehead respectively. Therefore when using face shield, it is necessary to different forehead support height, to ensure most suitable to wear sense, enables the patient to obtain and comfortable wears experience.

At present, regulating forehead support frame and mainly adopt the principle of worm drive relative to the height of forehead, the rotary motion of use knob realizes the flexible of the forehead support pad on forehead support frame, and then adapts to different forehead height. But the amount of parts that this governor motion comprises is more, it is achieved get up more complicated; And requiring higher to manufacturing process, manufacturing cost remains high.

Summary of the invention

The problems such as the structure in order to solve at least in part to exist in existing breathing mask is complicated, manufacturing cost is higher, this utility model provides a kind of breathing mask, comprising: framework;Forehead support frame, described forehead support frame has the first connecting portion, and described first connecting portion is as pivotally connected to described framework so that described forehead support frame can towards patient's forehead or deviate from patient's forehead swing; And adjustment means, described adjustment means is set on described first connecting portion, and it is rotationally attached to described framework, wherein, being provided with protuberance in one of them of the lateral wall of described first connecting portion of described forehead support frame and the medial wall of described adjustment means, another is provided with adjustment oblique orbit, described protuberance is along described adjustment oblique orbit slidably, with the rotation by described adjustment means, described forehead support frame is driven to swing.

Preferably, described adjustment means is detachably connectable to described forehead support frame.

Preferably, described lateral wall and described medial wall are provided with on the sidewall of described adjustment oblique orbit and are additionally provided with fluting, described fluting has the first end and the second end, described first end is connected to described adjustment oblique orbit, and described second end extends to the edge of described sidewall, described protuberance slidably and can depart from described fluting from described second end along described fluting.

Preferably, described fluting is perpendicular to described adjustment oblique orbit.

Preferably, described adjustment oblique orbit is arranged on the described lateral wall of described first connecting portion, and described lateral wall is provided with spacing preiection, and described framework is provided with stopper slot accordingly, described spacing preiection matches with described stopper slot, to limit the swaying direction of described forehead support frame.

Preferably, described spacing preiection is arranged on the both sides of described fluting.

Preferably, described adjustment means being provided with the first draw-in groove, described framework is provided with the second draw-in groove being mutually clamped with described first draw-in groove, described adjustment means is rotationally attached to described framework by described first draw-in groove and described second draw-in groove.

Preferably, described framework has the second connecting portion, described first connecting portion and described second connecting portion cooperatively form ball-and-socket attachment structure, and described forehead support frame and described framework are respectively arranged with the limiting section cooperated, and described limiting section limits the swaying direction of described forehead support frame.

Preferably, described first connecting portion is interception shape, and described first connecting portion is accommodated pivotably in described second connecting portion.

Preferably, the lateral wall of described adjustment means is provided with the multiple teeth arranged around described adjustment means.

Preferably, described framework has gas transmission interface, described adjustment means and described forehead support frame and is connected to described gas transmission interface.

The breathing mask that this utility model provides is by regulating cooperating of oblique orbit and protuberance in adjustment means and forehead support, the rotation of adjustment means is converted to the swing of forehead support, just can regulate the forehead support frame height relative to patient's forehead by rotating adjustment means. During use, the singlehanded adjustment means that rotates just can make forehead support frame swing, and patient can search out the position of the most comfortable according to personal feeling, it is not necessary to other people help, and operate very convenient. And the simple in construction of this regulative mode, amount of parts are little, and therefore manufacturing process is simple, manufacturing cost is relatively low.

Introducing the concept of a series of reduced form in utility model content, this will further describe in detailed description of the invention part. This utility model content part is not meant to the key feature and the essential features that attempt to limit technical scheme required for protection, does not more mean that the protection domain attempting to determine technical scheme required for protection.

Below in conjunction with accompanying drawing, describe advantage of the present utility model and feature in detail.

Accompanying drawing explanation

Drawings below of the present utility model is used for understanding this utility model in this as a part of the present utility model. Shown in the drawings of embodiment of the present utility model and description thereof, it is used for explaining principle of the present utility model. In the accompanying drawings,

Fig. 1 is the schematic diagram of human head profile;

Fig. 2 is the axonometric chart of the breathing mask according to one embodiment of this utility model;

Fig. 3 is the front view of the breathing mask in Fig. 2;

Fig. 4 is the sectional view of the breathing mask cut of the line A-A along Fig. 3;

Fig. 5 is the sectional view of the adjustment means according to one embodiment of this utility model and framework;

Fig. 6 is the exploded view of the forehead support frame according to one embodiment of this utility model and framework;

Fig. 7 is the axonometric chart of the framework according to one embodiment of this utility model;

Fig. 8 is the axonometric chart of the forehead support frame according to one embodiment of this utility model; And

Fig. 9 is the exploded view of the forehead support frame according to one embodiment of this utility model and adjustment means.

Detailed description of the invention

In the following description, it is provided that substantial amounts of details is so as to understand this utility model up hill and dale. But, those skilled in the art it will be seen that, described below exemplarily only illustrates preferred embodiment of the present utility model, and this utility model can be carried out without one or more such details. Additionally, in order to avoid obscuring with this utility model, be not described in detail for technical characteristics more well known in the art.

According to an aspect of the present utility model, it is provided that a kind of breathing mask. Fig. 2-4 illustrates the breathing mask 200 according to one embodiment of this utility model from all angles. Although it is understood that for nose cup type breathing mask, principle of the present utility model is described in accompanying drawing, but breathing mask provided herein can also be the breathing mask of oronasal mask type, full shape of face or nasal pillow type etc. As in Figure 2-4, breathing mask 200 includes framework (also referred to as mask body) 210, adjustment means 220 and forehead support frame 230.

Framework 210 is mainly used in supporting on whole breathing mask 200. Framework 210 can be permanently connected or be detachably connected with liner 240. Liner 240 and framework 210 are collectively forming the cavity of nose or the snout holding patient. Liner 240 can also independently form this cavity, and framework 210 can at the external support liner 240 of liner 240 in this embodiment. In use, liner 240, by contacting with the face of patient (include on cheek, the bridge of the nose, face or bottom etc.), is formed and seals, so that this cavity connects with nasal cavity or the mouth and nose chamber of patient. Framework 210 can be made up of rigid material, or can also be made up of flexible material. Liner 240 is preferably made up of flexible material. Rigid material can be plastics, alloy etc., and flexible material can be silica gel, gel, foam, air bag, textile etc. Breathing mask 200 stands in the opposite viewing of patient after being worn by the patient, the shape of framework 210 and liner 240 is not limited to the general triangular shown in figure, it is also possible to for pyriform, trapezoidal etc. Framework 210 and liner 240 also can adopt any other shape that can be suitable with mouth and/or nose shape. Framework 210 has gas transmission interface 211. The gas being available for breathing is provided to the cavity in breathing mask 200 by this gas transmission interface 211. Additionally, framework 210 is also provided with fixed structure 213, it is used for connecting fixation kit (not shown).Fixation kit is for being fixed on breathing mask 200 appropriate location of patient facial region, it is possible to be existing various headband. Headband can have the structure being connected with framework 210, such as button, bandage with VELCRO.

Forehead support frame 230 is resisted against on the forehead of patient in use, in order to breathing mask 200 is more securely and comfortably fixed on the face of patient. Forehead support frame 230 is as pivotally connected to framework 210 so that forehead support frame 230 can towards patient's forehead or deviate from patient's forehead swing. Exemplarily, forehead support frame 230 is pivotable with pivot O-O for axle. In this nose cup type breathing mask, (namely swingably) forehead support frame 230 is preferably pivotally connected to gas transmission interface 211, and adjustment means 220 is also rotationally attached to gas transmission interface 211, so that the structure of breathing mask is compacter. But for the breathing mask (such as full-face mask or oral nose mask etc.) that volume is bigger, forehead support frame 230 is likely to be separately positioned on framework 210 with gas transmission interface 211. Pivot O-O should extend along the left and right directions of human body. Forehead support frame 230 is when pivot O-O pivots (pivoting along the direction shown in the arrow N in Fig. 4), it is possible to adjust the height of forehead support frame 230 relative to forehead. Connection between forehead support frame 230 and framework 210 can be can not sectional type or disassembled. Forehead support frame 230 has the first connecting portion 231. Forehead support frame 230 is connected to framework 210 by this first connecting portion 231. First connecting portion 231 has the gas channel connected with gas transmission interface 211, to allow gas to pass through gas transmission interface 211. Forehead support frame 230 also includes linking arm 234 and forehead support pad 232. Linking arm 234 extends near forehead from the first connecting portion 231 approximately along the bridge of the nose. Soft forehead support pad 232 is arranged on the end of the close forehead of linking arm 234, for being resisted against the forehead of patient. The height regulating forehead support frame 230 is actually the height adjusting forehead support pad 232 relative to forehead.

The mode that is pivotally connected between forehead support frame 230 and framework 210 can be multiple. In a preferred embodiment, framework 210 has the second connecting portion 215 that the first connecting portion 231 with forehead support frame 230 is connected. First connecting portion 231 and the second connecting portion 215 cooperatively form ball-and-socket attachment structure. In a preferred embodiment, the first connecting portion 231 is in interception shape, and the first connecting portion 231 is accommodated pivotably in the second connecting portion 215. Intercepting ball and refer to that two parallel planes of use remove spherical segment, the part between two parallel planes is for intercepting ball. It is of course also possible in turn, the second connecting portion 215 is designed to accommodate that the structure in the first connecting portion 231. But, optimal way compared to diagram, the design that second connecting portion 215 is contained in the first connecting portion 231 can there is problems in that the second connecting portion 215 of inside is designed to longer possibly, reserve enough pivot spaces to the first outside connecting portion 231, and the first connecting portion 231 is also without the space made full use of in cavity, so can cause that the profile of whole breathing mask 200 is relatively big, reduce the comfort level worn. Between first connecting portion 231 and the second connecting portion 215, sphere can adopt interference connected mode, with the air-tightness that both guarantees connect.

When ball-and-socket connects, in order to limit the swaying direction of forehead support frame 230, for instance make forehead support frame 230 be pivoted with pivot O-O for axle, forehead support frame 230 and be respectively arranged with the limiting section cooperated on framework 210.Referring to illustrating Fig. 7 of framework 210 and illustrating Fig. 8 of forehead support frame 230, the limiting section 233 on forehead support frame 230 is spacing preiection, and the limiting section 217 on framework 210 is stopper slot. Spacing preiection 233 is corresponding with the position of stopper slot 217. When forehead support frame 230 pivots, spacing preiection 237 slides along stopper slot 217. Limiting section can also adopt other modes various, such as spacing preiection and the stopper slot location swap on forehead support frame 230 and framework 210, or the plane (plane can be perpendicular to pivot O-O) that setting is mutually matched or is mutually matched on forehead support frame 230 and framework 210 etc. By limiting section, although adopting ball-and-socket to be connected between forehead support frame 230 with framework 210, but only there is the degree of freedom in forehead altitude mixture control direction. But, as hereinafter described, the lateral wall of the first connecting portion 231 of forehead support frame 230 or the medial wall of adjustment means 220 are additionally provided with along respective circumferentially extending adjustment oblique orbit, therefore, adopting the plane that is mutually matched to limit forehead support frame 230 only with pivot O-O for when pivotally turning, design difficulty can be increased, but this utility model is not precluded from this setup. Spacing preiection 233 and the fit system of stopper slot 217 can make the structure of limiting section relatively easy.

Except above-mentioned ball-and-socket attachment structure, forehead support frame 230 can also adopt hinge etc. to be as pivotally connected to framework 210. Exemplarily, hinge can be arranged on the outer surface of framework 210, and forehead support frame 230 is hingedly connected to framework 210 by this. But compared to above-mentioned optimal way, this hinged complicated structure, not easily removable and washable, and make the overall appearance out-of-flatness of breathing mask 200.

Breathing mask 200 can also include winding pipe assembly 250. Winding pipe assembly 250 is communicated to gas transmission interface. Pressure support device (such as respirator) is connected with winding pipe assembly 250 by air delivering pipeline (not shown), in order to the gas inputting suitable pressure enters the cavity of breathing mask 200, and then enters the air flue of patient. The gas of supply patient can be any suitable breathing gas that prior art is known. Winding pipe assembly 250 can be various winding pipe assemblies commonly used in the art. Air delivering pipeline can be commonly used in the art corrugated flexible hose. For the optimal way in Fig. 2-4, forehead support frame 230 is connected to gas transmission interface 211, and adjustment means 220 can also be connected to gas transmission interface 211. First connecting portion 231 of forehead support frame 230 is provided with and allows the gas gas channel by gas transmission interface 211. Winding pipe assembly 250 can be connected to the first connecting portion 231 of forehead support frame 230, and connects with the gas channel of the first connecting portion 231. Being contained in the enforcement in the first connecting portion 231 at the second connecting portion 215 and be hinged in the embodiment of framework 210 at forehead support frame 230, winding pipe assembly 250 can be directly connected to gas transmission interface 211.

It should be noted that, directional terminology involved by this utility model, for instance "front", "rear", " on ", D score, "left", "right", " outward ", " interior ", " far ", " closely " etc. be relative to wear this breathing mask 200 and the upright patient of head. For Fig. 3-4 putting position, liner 240 is in the near-end of patient relative to winding pipe assembly 250, and winding pipe assembly 250 is in the far-end of patient relative to liner 240.

The adjustment means 220 being used for regulating the height of forehead support pad will be described in detail below. Adjustment means 220 is rotationally attached to framework 210. In a preferred embodiment, as it is shown in figure 5, be provided with the first draw-in groove 223 in adjustment means 220, being provided with the second draw-in groove 219 on framework 210, the first draw-in groove 223 and the second draw-in groove 219 can be mutually clamped. Adjustment means 220 is rotationally attached to framework 210 by the first draw-in groove 223 and the second draw-in groove 219. By the rotation relative to the second draw-in groove 219 of first draw-in groove 223, make adjustment means 220 can rotate relative to framework 210. Exemplarily, at least one in the first draw-in groove 223 and the second draw-in groove 219 ringwise so that one in the first draw-in groove 223 and the second draw-in groove 219 can be rotatable relative to another. Be connected in the embodiment of gas transmission interface 211 in adjustment means 220, the first draw-in groove 223 and/or the second draw-in groove 219 can circumferentially extending along gas transmission interface 211 so that adjustment means 220 can rotate around gas transmission interface 211. At least one in first draw-in groove 223 and the second draw-in groove 219 can be the cannelure of the circumferentially continuous setting of at least one in edge. Adjustment means 220 and framework 210 can also adopt other fit systems to realize both rotating against, such as, in adjustment means 220 and framework 210 one can arrange circular orbit, another in adjustment means 220 and gas transmission interface 211 can be arranged along this circular orbit slidably any auxiliary section, for instance protuberance, hook part or tooth etc.

Adjustment means 220 also can be set on the first connecting portion 231 of forehead support frame 230. The lateral wall of such first connecting portion 231 is at least part of with the medial wall of adjustment means 220 relative. One of them of the medial wall of the lateral wall of this first connecting portion 231 and this adjustment means 220 can be provided with protuberance, another is provided with adjustment oblique orbit. In one embodiment, protuberance is arranged in adjustment means 220, and adjustment oblique orbit is arranged on forehead support frame 230. In another embodiment, it is possible in turn, protuberance is arranged on forehead support frame 230, and adjustment oblique orbit is arranged in adjustment means 220. In adjustment forehead support frame is relative to the height of forehead, the principle of both set-up modes is essentially identical, therefore, only one of which set-up mode is described in detail below in conjunction with accompanying drawing. And those skilled in the art it will be seen that another kind of set-up mode according to being described below.

The medial wall of adjustment means 220 is provided with protuberance 221, sees Fig. 5 and 9. The lateral wall of the first connecting portion 231 is provided with adjustment oblique orbit 235, see Fig. 6,8 and 9. Regulate oblique orbit 235 around the first connecting portion 231. Regulate oblique orbit 235 generally in annular. Protuberance 221 is along regulating oblique orbit 235 slidably. Exemplarily, protuberance 221 can be the bulb of the medial wall protruding from adjustment means 220. Bulb may be housed in adjustment oblique orbit 235, to slide along adjustment oblique orbit 235. Protuberance 221 can also have other structures, as long as can slide along regulating oblique orbit 235. Regulate oblique orbit 235 to tilt relative to reference plane. Reference plane mentioned in this article are be parallel to the perpendicular of pivot O-O, and these reference plane are an imaginary plane, are not shown in the figure, but are appreciated that these reference plane are be perpendicular to the perpendicular of paper with reference to Fig. 4.When patient wears this breathing mask, reference plane are parallel to the face of patient. Referring to Fig. 6, along the circumferential direction of the first connecting portion 231, this adjustment oblique orbit 235 gradually changes relative to the height h of the near-end of the first connecting portion 231. So, when adjustment means 220 rotates, protuberance 221 can slide into the various location regulating oblique orbit 235, drives forehead support frame 230 to swing (namely swinging along the direction shown in arrow N), and then regulates the forehead support frame 230 height relative to forehead. Patient helps without other people, and the singlehanded adjustment means 220 that rotates just can search out the position of the most comfortable according to personal feeling, operates very convenient. Regulate oblique orbit 235 to design according to the height adjustment range required for forehead support frame 230 relative to the slope of reference plane. As can be seen here, adjustment means 220 realizes the altitude mixture control of forehead support frame 230 by designing cleverly, and simply, therefore its simple in construction, manufacturing process can save cost.

Preferably, adjustment means 220 is detachably connectable to forehead support frame 230. Forehead support frame 230 and framework 210 can also adopt dismountable connected mode. Breathing mask needs often to clean, and can disassemble out between all parts that breathing mask comprises, for helpful cleaning. In preferred embodiment of the present utility model, the lateral wall of the first connecting portion 231 and the medial wall of adjustment means 220 is provided with regulate oblique orbit sidewall on fluting is set. To illustrate embodiment, referring to Fig. 9, the lateral wall of the first connecting portion 231 of forehead support frame 230 is provided with adjustment oblique orbit 235 and fluting 237. Fluting 237 has the first end and the second end. First end of fluting 237 is connected to regulate oblique orbit 235. Second end of fluting 237 extends to the edge of this lateral wall. Connect with fluting 237 owing to regulating oblique orbit 235, therefore protuberance 221 can be slid into regulating in oblique orbit 235 along fluting 237, or depart from fluting 237 from the second end of fluting 237, and then adjustment means 220 is disassembled from forehead bracing frame 230. By slotting 237, adjustment means 220 can be disassembled out with forehead support frame 230 easily, as long as and protuberance 221 is directed at fluting 237 when installing, it is then slid into adjustment oblique orbit 235. The embodiment that adjustment oblique orbit is arranged in adjustment means 220 is similar to the above embodiments, is about to fluting and is arranged on the medial wall of adjustment means 220 and is connected to regulate oblique orbit, for sake of simplicity, repeat no more herein.

Alternatively, in the illustrated embodiment, fluting 237 is vertical with regulating oblique orbit 235. But, fluting 237 can also be without being perpendicular to adjustment oblique orbit 235. Fluting 237 can be angled with adjustment oblique orbit 235. Although compared to fluting 237 with regulate the vertical embodiments of oblique orbit 235, arrange with slotting 237 out of plumb and structure can be made somewhat more complex, but off plumb arrange also can reduce protuberance 221 undesirably fall off slot 237 probability.

It is further preferred that the limiting section mentioned above spacing preiection that can include being arranged on the lateral wall of the first connecting portion 231 and stopper slot on framework 210 is set accordingly. Fit system for spacing preiection and stopper slot has been described in above, repeats no more here. It is noted that regulating oblique orbit 235 with in the embodiment on the lateral wall of 237 the first connecting portions 231 being arranged on forehead support frame 230 of slotting, spacing preiection 233 is preferably provided in the both sides of fluting 237, as Fig. 8-9 preferably illustrates.Consider the comfortableness worn, being designed to of breathing mask is more and smaller and more exquisite, limited wall thickness for the first connecting portion 231, the both sides that spacing preiection 233 is arranged on fluting 237 can increase the degree of depth of fluting 237, in the installation and removal process of the forehead support frame 230 of adjustment means 220, being easier to make protuberance 221 be directed at fluting 237, therefore installation and removal are got up convenient, quick.

Although in the above-described embodiments, adjustment means 220 all ringwise, but the shape of adjustment means 220 is not limited to this, it can for can be rotationally attached to the variously-shaped of blowing mouth 211. Such as, the lateral wall of adjustment means 220 can be the shape such as prism, terrace with edge, and medial wall can generally become cylindrical, as long as being capable of its function. The lateral wall of adjustment means 220 can be provided with the multiple teeth arranged around adjustment means 220, make it rotate to facilitate finger to stir adjustment means 220.

This utility model is illustrated already by above-described embodiment, but it is to be understood that, above-described embodiment is only intended to citing and descriptive purpose, and is not intended to be limited in described scope of embodiments this utility model. In addition it will be understood by those skilled in the art that; this utility model is not limited to above-described embodiment; more kinds of variants and modifications can also be made, within these variants and modifications all fall within this utility model scope required for protection according to instruction of the present utility model. Protection domain of the present utility model is defined by the appended claims and equivalent scope thereof.

Claims

1. a breathing mask, it is characterised in that described breathing mask includes:

Framework;

Forehead support frame, described forehead support frame has the first connecting portion, and described first connecting portion is as pivotally connected to described framework so that described forehead support frame can towards patient's forehead or deviate from patient's forehead swing; And

Adjustment means, described adjustment means is set on described first connecting portion, and is rotationally attached to described framework,

Wherein, one of them of the lateral wall of described first connecting portion of described forehead support frame and the medial wall of described adjustment means is provided with protuberance, another is provided with adjustment oblique orbit, described protuberance is along described adjustment oblique orbit slidably, with the rotation by described adjustment means, described forehead support frame is driven to swing.

2. breathing mask as claimed in claim 1, it is characterised in that described adjustment means is detachably connectable to described forehead support frame.

3. breathing mask as claimed in claim 2, it is characterized in that, described lateral wall and described medial wall are provided with on the sidewall of described adjustment oblique orbit and are additionally provided with fluting, described fluting has the first end and the second end, described first end is connected to described adjustment oblique orbit, and described second end extends to the edge of described sidewall, described protuberance slidably and can depart from described fluting from described second end along described fluting.

4. breathing mask as claimed in claim 3, it is characterised in that described fluting is perpendicular to described adjustment oblique orbit.

5. breathing mask as claimed in claim 3, it is characterized in that, described adjustment oblique orbit is arranged on the described lateral wall of described first connecting portion, described lateral wall is provided with spacing preiection, described framework is provided with stopper slot accordingly, described spacing preiection matches with described stopper slot, to limit the swaying direction of described forehead support frame.

6. breathing mask as claimed in claim 5, it is characterised in that described spacing preiection is arranged on the both sides of described fluting.

7. breathing mask as claimed in claim 1, it is characterized in that, described adjustment means is provided with the first draw-in groove, being provided with the second draw-in groove being mutually clamped with described first draw-in groove on described framework, described adjustment means is rotationally attached to described framework by described first draw-in groove and described second draw-in groove.

8. breathing mask as claimed in claim 1, it is characterized in that, described framework has the second connecting portion, described first connecting portion and described second connecting portion cooperatively form ball-and-socket attachment structure, being respectively arranged with the limiting section cooperated on described forehead support frame and described framework, described limiting section limits the swaying direction of described forehead support frame.

9. breathing mask as claimed in claim 8, it is characterised in that described first connecting portion is interception shape, and described first connecting portion is accommodated pivotably in described second connecting portion.

10. breathing mask as claimed in claim 1, it is characterised in that be provided with the multiple teeth arranged around described adjustment means on the lateral wall of described adjustment means.

11. breathing mask as claimed in claim 1, it is characterised in that described framework has gas transmission interface, described adjustment means and described forehead support frame and is connected to described gas transmission interface.