Breathing mask with sound insulation function

Abstract

The utility model relates to a breathing mask. The utility model provides a breathing mask with a sound insulation function. Headband assembly mounting parts are arranged on the left side and the right side of a mask main frame, an upper side mounting part is arranged on the upper portion of the mask main frame, the left side and the right side of the upper side mounting part extend upwards to form a left supporting body and a right supporting body, and headband assembly mounting holes are formed in the tops of the left supporting body and the right supporting body, so that a headband assembly is connected with the left side and the right side of the lower portion of the mask main frame; the left side and the right side of the upper portion of the breathing mask are connected, the supporting stability of the breathing mask on the face of a person is better, meanwhile, the fixing stability of the head band assembly is better, and the breathing mask can keep better stability when fixed to the face of the person on the whole. Meanwhile, the head band assembly, the left supporting body and the right supporting body avoid the sight area of the human face, and the sight of the human body cannot be affected.

Description

Technical Field

[0001] The utility model relates to the technical field of breathing masks. Specifically, the utility model relates to a breathing mask that is designed with a better wearing structure and a facial support structure to make the breathing mask more stable during wearing, thereby reducing the generation of noise. Background Art

[0002] A breathing mask is the main device used to assist patients with breathing difficulties in positive pressure ventilation, and is also often used by doctors in clinical operations or treatments to assist patients in breathing or to enable patients to inhale drugs that need to be taken through breathing. It is a very important medical auxiliary device.

[0003] A breathing mask generally includes a swivel tube. One end of the swivel tube is connected to a gas supply device through a ventilation duct, and the other end is connected to a mask support. The other end of the mask support is provided with a buffer pad for contacting the human face.

[0004] The breathing mask provided by the prior art connects the mask support through a headband and fixes the breathing mask on the human head through the headband. However, due to the fact that the design of the mask support of the breathing mask does not fully consider the stability during the wearing of the headband, especially when it needs to be worn for a long time, the breathing mask often moves due to the unstable fixation of the headband, and there is a problem of mismatch in the fitting comfort between the mask buffer pad and the human face, resulting in a relatively large amount of noise. On the one hand, this noise affects the patient's rest and may even affect the patient's mood and the treatment effect. At the same time, the unreasonable structural design of the mask support may also cause the problem that the headband affects the line of sight after wearing, bringing inconvenience to the long-term wearing in life. Summary of the Utility Model

[0005] In view of the problems existing in the design of the mask support in the existing breathing mask, the embodiment of the present application provides a breathing mask with a sound insulation function, which can be worn more stably, so that the mask buffer pad will not move easily after being worn, thereby solving the problem of the wearing stability of the breathing mask and reducing the generation of noise. At the same time, it does not affect the line of sight of the user during wearing, giving the user a better use experience.

[0006] An embodiment of the utility model provides a breathing mask with a sound insulation function, which includes: a main mask frame, the main mask frame is provided with a through mounting hole, a first end of the mounting hole is a mounting part for a rotating head component, and a second end of the mounting hole is provided with a mounting part for a buffer pad component; on both sides of the main mask frame, a left mounting part and a right mounting part are respectively provided, and the left mounting part and the right mounting part are respectively used for mounting a first connecting band and a second connecting band of a headband component; on the top of the main mask frame, an upper mounting part is provided, and the upper mounting part respectively includes a left support body extending to the left side and a right support body extending to the left side, headband mounting parts are respectively arranged on the left support body and the right support body, and the headband mounting parts are respectively connected to a third connecting band and a fourth connecting band of the headband component;

[0007] A rotating head component, the rotating head component includes an elbow pipe main body, the elbow pipe main body includes an elbow pipe first end and an elbow pipe second end arranged at an angle, the inside of the elbow pipe first end and the elbow pipe second end is communicated, the elbow pipe first end is provided with a turning pipe mounting part, the turning pipe mounting part is rotationally connected to the mounting part of the rotating head component on the mask bracket, and the elbow pipe second end is provided with a ventilation duct mounting part for connecting to a ventilation duct;

[0008] A buffer pad component, including a buffer pad bracket, a first end of the buffer pad bracket is connected to the mounting part of the buffer pad component of the main mask frame, and a second end of the buffer pad bracket is provided with a mask buffer pad in contact with the human face;

[0009] A headband component, the headband component includes a soft headband main body, a first connecting band and a second connecting band are arranged at the lower part of the soft headband main body, and a third connecting band and a fourth connecting band are arranged at the upper part of the soft headband main body.

[0010] The breathing mask with a sound insulation function provided by the embodiment of the present application improves the main mask frame, is provided with support bodies extending to the upper parts of the left and right sides respectively, forming a left support body and a right support body. The left and right support bodies extend from the upper part of the mouth and nose of the human face to the upper part of the side face of the human face. At the same time, left and right mounting parts at the lower part are provided for connecting and fixing the first connecting band and the second connecting band of the headband component, and the left and right support bodies are provided with the third connecting band and the fourth connecting band of the headband component for connecting and fixing. Thus, on the one hand, the left and right support bodies provide better support stability of the breathing mask on the human face, and at the same time, they also provide better fixing stability of the headband component in the up, down, left and right directions. Overall, when the breathing mask is fixed on the human face, it can maintain better stability. At the same time, the headband component and the left and right support bodies also avoid the line-of-sight area of the human face and will not affect the human line of sight.

[0011] Preferably, the cushion mask includes a soft cushion of a first hardness material and a cushion of a second hardness material. The cushion of the second hardness material connects the cushion bracket and the soft cushion of the first hardness material. A cushion groove is provided between the soft cushion of the first hardness material and the cushion of the second hardness material, and the first hardness value is less than the second hardness value. The soft cushion of the first hardness material includes a nose pad portion that fits the nose, a lower pad portion that fits the chin or the upper lip, and a left pad portion and a right pad portion that are symmetrically arranged on the left and right sides and connect the nose pad portion and the lower pad portion respectively. The nose pad portion, the left pad portion, the lower pad portion, and the right pad portion enclose a breathing cavity for accommodating the nostrils or the mouth and nose of the human body. The cushion groove includes a first groove and a second groove. The first groove is provided to connect the nose pad portion and the cushion of the second hardness material, and the second groove connects the lower pad portion and the cushion of the second hardness material. A groove connecting portion that is smoothly connected to the surface of the mask cushion is provided between the first groove and the second groove. By providing a soft cushion of a first hardness material that fits the human face on the cushion bracket, the texture of the cushion material is soft, so that the wearer feels more comfortable. A cushion of a second hardness material is provided between the soft cushion of the first hardness material and the cushion bracket. Its hardness is greater than that of the soft cushion of the first hardness material and it has better elasticity. When wearing the breathing mask, by squeezing the cushion of the second hardness material, it can produce a certain elastic deformation. At the same time, by providing the first groove and the second groove respectively above and below, users with different face shapes can better adapt to the cushion and fit the human face better. At the same time, the elastic pressure can provide a certain squeezing force to achieve a better sealing effect, reduce the generation of noise, reduce the discomfort brought to the user during the use of the breathing mask, and improve the auxiliary treatment effect.

[0012] Preferably, the main body of the soft headband is a hollow annular band. A third connecting band extends from the upper left side of the annular band, and a magic fastener is provided at the free end of the third connecting band. A fourth connecting band extends from the upper right side of the annular band, and a magic fastener is provided at the free end of the fourth connecting band. A neck covering portion extends from the lower part of the annular band. A first connecting band extends from the left side of the neck covering portion, and a magic fastener is provided at the free end of the first connecting band. A second connecting band extends from the right side of the neck covering portion, and a magic fastener is provided at the free end of the second connecting band. By improving the structure of the main body of the soft headband, the hollow annular band of the main body of the soft headband can be well adapted to the back of the human head. The four connecting bands provided in the front are installed and fixed in the up, down, left, and right directions on the main frame of the mask, providing better comfort and stability as a whole.

[0013] Preferably, each of the left and right support bodies includes a first connecting section and a second connecting section, wherein the first connecting section is fixedly connected to the upper mounting portion and is provided with a slide rail. The first end of the second connecting section is disposed within the slide rail and slides along and is fixed to the slide rail. The second end of the second connecting section is a free end, and a headband mounting hole is provided at the end thereof. By configuring the left and right support bodies to be adjustable in length, the support bodies can be adjusted according to the shape and size of the face, thereby achieving a better fit with the face and improving the stability of the respiratory mask when worn.

[0014] Preferably, hook guide structures are provided on both the left and right sides of the mask main frame. The hook guide structures are wide and gradually narrow relative to the mounting portion fixing holes, which are used to install the rotating rods on the left and right mounting portions, respectively. The provision of the hook guide structures can facilitate the insertion of the rotating rods into the mounting portion fixing holes.

[0015] Preferably, both the left and right mounting portions include a mounting portion body, a fixed end of a rotating rod being provided on one side of the mounting portion body, a free end being provided at the other end of the mounting portion body opposite the fixed end, a headband mounting hole being provided at the free end, and a headband guide groove being provided at the other side of the mounting portion body opposite the rotating rod, the headband guide groove guiding the headband mounting hole. Similarly, the provision of the headband guide groove facilitates the insertion and securing of the headband.

[0016] Preferably, the adapter portion of the elbow swivel body is provided with a tapered exhaust hole, with a sound insulation cotton installation slot located above the tapered exhaust hole. The sound insulation cotton is also provided and secured in the sound insulation cotton installation slot via a sound insulation cotton cover. The tapered exhaust hole is used to discharge exhaled air from the respiratory mask, while the sound insulation cotton is provided to reduce the noise generated by exhalation.

[0017] Preferably, the first hardness material soft cushion and the second hardness material cushion are both made of silicone. Using silicone materials of different hardness to form the first hardness material soft cushion and the second hardness material cushion allows them to be integrally formed, resulting in better connection and integrity, simplifying the manufacturing process and simplifying the installation process, thereby improving production efficiency.

[0018] Preferably, the swivel assembly further includes a spherical connector comprising a spherical body, and first and second parallel connecting ends disposed at opposite ends of the spherical body, the first connecting end being connected to the first end of the elbow swivel tube. The spherical connector allows for rotation within the spherical receiving hole, achieving flexible rotation and enabling the swivel assembly to be adjusted as needed for better connection to the gas supply equipment.

[0019] The above summary is only for the purpose of the specification and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present utility model will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the accompanying drawings required for use in the embodiments or the description of the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0021] Figure 1 Schematic diagram of the overall structure of a breathing mask with sound insulation function provided by an embodiment of the present utility model;

[0022] Figure 2 Schematic diagram of the explosion effect structure of a breathing mask with sound insulation function provided by an embodiment of the present utility model;

[0023] Figure 3 Schematic diagram of the mask buffer pad structure in a breathing mask with sound insulation function provided by an embodiment of the present utility model.

[0024] In the figure: 1, main mask frame; 11, first end of the mounting hole; 12, second end of the mounting hole; 13, left mounting part; 14, right mounting part; 15, upper mounting part; 16, left support body; 161, first connecting section; 162, second connecting section; 17, right support body; 18, headband mounting part; 191, hook guiding structure; 192, fixing hole of the mounting part; 2, elbow pipe main body; 21, first end of the elbow pipe; 22, second end of the elbow pipe; 23, spherical connector; 24, conical exhaust hole; 25, sound insulation cotton; 26, sound insulation cotton cover; 3, buffer pad assembly; 31, buffer pad bracket; 32, soft buffer pad of the first hardness material; 321, nose pad part; 322, lower pad part; 323, left pad part; 324, right pad part; 33, buffer pad groove; 331, first groove; 332, second groove; 333, groove connecting part; 33, buffer pad groove; 331, first groove; 332, second groove; 333, groove connecting part; 34, buffer pad of the second hardness material; 4, headband main body; 41, first connecting band; 42, second connecting band; 43, third connecting band; 44, fourth connecting band; 45, neck covering part; 5, ventilation duct. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] In the following text, only some exemplary embodiments are briefly described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present utility model. Therefore, the accompanying drawings and the description are considered to be exemplary in nature rather than restrictive.

[0026] It should be noted that terms such as "first", "second", "symmetric", "array", etc. are only used for the purpose of differentiating descriptions and position descriptions, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "symmetric", etc. may explicitly or implicitly include one or more of such features; similarly, when there is no numerical limitation on certain features in the form of words such as "two", "three", etc., it should be noted that such features also belong to explicitly or implicitly including one or more feature quantities;

[0027] In the present utility model, unless otherwise clearly specified and defined, terms such as "installation", "connection", "fixation", etc. should be understood in a broad sense; for example, it can be a fixed connection, a detachable connection, or an integral molding; it can be a mechanical connection, a direct connection, a welding connection, or an indirect connection through an intermediate medium, and can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood in combination with the specific situation of the description of the accompanying drawings.

[0028] The embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

[0029] The inventor of this application has studied the problem of unstable mask wearing during the use of the breathing mask provided by the prior art, and proposed a breathing mask that can prevent the breathing mask from easily moving relative to the mouth, nose and face of the wearer during wearing, thereby reducing the noise problem caused by the loose fit due to the movement of the breathing mask and having a better sound insulation effect.

[0030] Such as Figure 1 、 Figure 2 、 Figure 3As shown in the figure, the breathing mask with sound insulation function provided by the present utility model includes: a mask main frame 1, the mask main frame 1 is provided with a through mounting hole, the first end 11 of the mounting hole is a rotating head component mounting part, and the second end 12 of the mounting hole is provided with a buffer pad component mounting part. On the one hand, the mounting hole provides the connection between the mask main frame and other structures, and on the other hand, it also provides a ventilation pipe for the mask buffer pad to communicate with the air supply device through the ventilation pipe. On both sides of the mask main frame, a left mounting part 13 and a right mounting part 14 are respectively provided, and the left mounting part 13 and the right mounting part 14 are respectively used to mount the first connecting band 41 and the second connecting band 42 of the headband component; on the top of the mask main frame 1, an upper mounting part 15 is provided, and the upper mounting part 15 respectively includes a left support body 16 extending to the left and a right support body 17 extending to the left. Headband mounting parts 18 are respectively provided on the left support body 16 and the right support body 17, and the headband mounting parts 18 are respectively connected to the third connecting band 43 and the fourth connecting band 44 of the headband component. In a preferred embodiment provided by the present application, the left support body 16 and the right support body 17 are made of a material with a certain hardness and can deform under a certain acting force and can maintain its deformation effect, that is, it can deform after applying a medium acting force, and can maintain its deformation effect under the action of removing the external force until a new acting force is applied. The medium acting force in the present application specifically refers to a force that enables the user to push it to the required position, but not too small a force, otherwise it is easy to change during the left and right rotation after wearing, so that the worn breathing mask cannot maintain stability. A reference standard is a force of 10 kg to 20 kg for bench press.

[0031] Among them, in a preferred embodiment provided by the present application, both the left support body 16 and the right support body 17 include a first connecting section 161 and a second connecting section 162. The first connecting section 161 is fixedly connected to the upper mounting part 15. The first connecting section is provided with a slide rail. The first end of the second connecting section 162 is arranged in the slide rail and slides along the slide rail and is fixed on the slide rail. The second end of the second connecting section 162 is a free end, and a headband mounting hole 18 is provided at its end. Among them, the first connecting section and the second connecting section can also be connected by other structures. The purpose is to adjust the overall length of the left support body 16 or the right support body 17 by setting the second connecting section to be movable relative to the first connecting end. By setting the left and right support bodies to be adjustable in length, the support bodies can be adjusted according to the shape and size of the human face, so as to better adapt to the human face and improve the wearing stability of the breathing mask.

[0032] The swivel assembly includes an elbow swivel tube body 2, the elbow swivel tube body 21 includes an elbow swivel tube first end 21 and an elbow swivel tube second end 22 set at an angle, the elbow swivel tube first end 21 and the elbow swivel tube second end 22 are internally connected, the elbow swivel tube first end 21 is provided with a turning tube mounting portion, the turning tube mounting portion is rotatably connected to the swivel assembly mounting portion on the mask bracket, and the swivel elbow second end is provided with a ventilation duct mounting portion for connecting to the ventilation duct 5.

[0033] In a preferred embodiment provided by the present application, the rotor assembly also includes a spherical connector 23, which includes a spherical body, and a first connecting end and a second connecting end arranged in parallel at both ends of the spherical body. That is, the spherical connector provided by the present application is designed as a whole in a spherical shape, and the first connecting end and the second connecting end arranged in parallel are connected to form a gas transmission channel. The first connecting end is connected to the first end of the elbow rotating pipe; the first end 11 of the mounting hole is provided with a spherical receiving hole for accommodating the spherical connector, and the second connecting end of the spherical body is accommodated in the spherical receiving hole. By providing a spherical connector, it can be rotated in the spherical receiving hole, thereby achieving the purpose of flexible rotation, so that the rotor assembly can be adjusted as needed to better connect to the gas supply equipment.

[0034] The connecting portion of the elbow swivel body 2 is equipped with a conical exhaust hole 24. A sound insulation cotton installation slot is located above the conical exhaust hole 24. The sound insulation cotton 25 is secured in the installation slot via a sound insulation cotton cover 26. The conical exhaust hole is used to discharge exhaled air from the breathing mask, while the sound insulation cotton reduces the noise generated by exhalation. The exhaust hole also provides a gas inlet, allowing breathing air to be provided in the event of an air supply failure, preventing suffocation.

[0035] The cushion assembly 3 includes a cushion bracket 31, a first end of which is connected to the cushion assembly mounting portion of the mask main frame, and a second end of which is provided with a mask cushion that contacts the human face.

[0036] The preferred embodiment of the present application provides a cushion assembly 3, in which the first end of the cushion bracket 31 is connected to the cushion assembly mounting portion of the mask bracket 1, and further includes a soft cushion 32 of a first hardness material and a cushion 34 of a second hardness material that contacts the human face, the cushion 34 of the second hardness material connects the cushion bracket 31 and the soft cushion 32 of the first hardness material, a cushion groove 33 is provided between the soft cushion 32 of the first hardness material and the cushion 34 of the second hardness material, and the first hardness value is less than the second hardness value.

[0037] The soft buffer pad 32 made of the first hardness material includes a nose pad portion 321 that fits the nose, a lower pad portion 322 that fits the chin or the upper lip, and a left pad portion 323 and a right pad portion 324 that are symmetrically arranged on the left and right sides and connect the nose pad portion and the lower pad portion respectively. The nose pad portion 321, the left pad portion 323, the lower pad portion 322, and the right pad portion 324 enclose a breathing cavity for accommodating the nostrils or the mouth and nose of the human body. The buffer pad groove 33 includes a first groove 331 and a second groove 332. The first groove 331 is arranged to connect the nose pad portion 321 and the buffer pad 34 made of the second hardness material, and the second groove 332 connects the lower pad portion 322 and the buffer pad 34 made of the second hardness material. A groove connection portion 333 that is flatly connected to the surface of the mask buffer pad is arranged between the first groove 331 and the second groove 332. Since the upper and lower parts deform more and the left and right sides deform less during the wearing process of the breathing mask, through the improvement of the groove shape, it can better adapt to the pressure received by the breathing mask during the wearing process and achieve a better fitting effect. In the preferred embodiment provided in this application, both the soft buffer pad 32 made of the first hardness material and the buffer pad made of the second hardness material are made of silica gel. That is, two silica gel materials with different hardnesses are used to make the buffer pad, which can be integrally formed by one mold. Although the two silica gels have different hardnesses, they are both silica gel materials, and the joint between them can be well fused together, so that they can be integrally formed, having a better connection effect and integrity, which can simplify the manufacturing process and the installation process and improve production efficiency.

[0038] A headband assembly, the headband assembly includes a soft headband main body, and a first connection band 41 and a second connection band 42 are arranged at the lower part of the soft headband main body, and a third connection band 43 and a fourth connection band 44 are arranged at the upper part of the soft headband main body.

[0039] In a preferred embodiment of the headband assembly, the soft headband main body is a hollow annular band. The third connection band 43 extends from the upper left side of the annular band, and a magic fastener is arranged at the free end of the third connection band 43. The fourth connection band 44 extends from the upper right side of the annular band, and a magic fastener is arranged at the free end of the fourth connection band 44. The neck covering portion 45 extends from the lower part of the annular band. The first connection band 41 extends from the left side of the neck covering portion 45, and a magic fastener is arranged at the free end of the first connection band 41. The second connection band 42 extends from the right side of the neck covering portion, and a magic fastener is arranged at the free end of the second connection band 42. By providing two headband mounting structures on each of the upper, lower, left, and right sides, and through the structural design of the headband assembly, the annular band of the headband assembly can fit the back of the human head, the neck covering portion 45 has a large area of contact with the neck, and at the same time, four connection bands connect the main frame of the mask from four aspects, which can provide a more stable and balanced wearing effect, making the breathing mask more stable after being worn and reducing the problem of the breathing mask fitting the human face caused by movement.

[0040] The breathing mask with sound insulation function provided by the embodiment of the present application, when worn, first puts the mouth and nose of the human face into the cavity formed by the soft cushion of the first hardness material. Then, connect the first connecting band in the headband assembly to the left mounting part, the second connecting band to the right mounting part, the third connecting band to the left support body, and the fourth connecting band to the right support body, and adjust its tightness through Velcro. During the adjustment process, the soft cushion of the first hardness material can provide a comfortable face-fitting experience. The hardness of the cushion of the second hardness material is greater than that of the soft cushion of the first hardness material, and it has better elasticity and can undergo elastic deformation during extrusion. This elastic deformation can provide an extrusion force that presses the breathing mask against the human face, making the soft cushion of the first hardness material fit tightly against the human face, with little or no air leakage between them and no noise generated. Moreover, for the breathing mask with sound insulation function provided by the present application, its structure makes the breathing mask very stable after being fixed and not prone to movement during the movement of the user, greatly reducing the situation where the mask cushion does not fit tightly against the face, reducing the probability of generating noise, and improving the user's wearing experience.

[0041] As Figure 1 、 Figure 2 shown, in a further preferred embodiment provided by the embodiment of the present application, hook guiding structures 191 are provided on both the left and right sides of the main mask frame. The hook guiding structure gradually narrows from a wide opening to the mounting part fixing holes 192, and the mounting part fixing holes 192 are respectively used for installing the rotating rods on the left mounting part and the right mounting part. By providing the hook guiding structure, it is convenient to guide the rotating rod to be inserted into the mounting part fixing hole. At the same time, both the left mounting part and the right mounting part include a mounting part main body. The side where the rotating rod is provided on the mounting part main body is the fixed end, and the other end opposite to the fixed end of the mounting part main body is the free end. A headband mounting hole is provided at the free end, and a headband guiding groove is provided on the other side of the mounting part main body opposite to the side where the rotating rod is provided. The headband guiding groove guides the headband mounting hole. Similarly, by providing the headband guiding groove, it is convenient for the headband to pass through and be fixed, and at the same time, it can make the headband fit better with the mounting part main body.

[0042] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of various changes or substitutions, and these should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A breathing mask with a sound insulation function, characterized in that, Comprising: The main mask frame is provided with a through mounting hole. The first end of the mounting hole is a swivel assembly mounting portion, and the second end of the mounting hole is provided with a buffer pad assembly mounting portion. On both sides of the main mask frame, there are respectively a left mounting portion and a right mounting portion, which are respectively used to mount the first connecting strap and the second connecting strap of the headband assembly. At the top of the main mask frame, there is an upper mounting portion, which respectively includes a left support body extending to the left and a right support body extending to the right. Headband mounting portions are respectively provided on the left support body and the right support body, and the headband mounting portions are respectively connected to the third connecting strap and the fourth connecting strap of the headband assembly. The swivel assembly includes an elbow tube main body, which includes an elbow tube first end and an elbow tube second end arranged at an angle. The inside of the elbow tube first end and the elbow tube second end is communicated. The elbow tube first end is provided with a turning tube mounting portion, and the turning tube mounting portion is rotatably connected to the swivel assembly mounting portion on the main mask frame. The elbow tube second end is provided with a ventilation duct mounting portion for connecting with a ventilation duct. The buffer pad assembly includes a buffer pad bracket. The first end of the buffer pad bracket is connected to the buffer pad assembly mounting portion of the main mask frame, and the second end of the buffer pad bracket is provided with a mask buffer pad that contacts the human face. The headband assembly includes a soft headband main body. The lower part of the soft headband main body is provided with a first connecting strap and a second connecting strap, and the upper part of the soft headband main body is provided with a third connecting strap and a fourth connecting strap.

2. The sound-insulating breathing mask according to claim 1, characterized in that: The mask buffer pad includes a soft buffer pad of a first hardness material and a soft buffer pad of a second hardness material. The soft buffer pad of the second hardness material connects the buffer pad bracket and the soft buffer pad of the first hardness material. A buffer pad groove is arranged between the soft buffer pad of the first hardness material and the soft buffer pad of the second hardness material, and the first hardness value of the soft buffer pad of the first hardness material is less than the second hardness value of the soft buffer pad of the second hardness material.

3. The sound-insulating breathing mask according to claim 2, wherein The soft buffer pad of the first hardness material includes a nose pad portion that fits the nose, a lower pad portion that fits the chin or the upper lip, and a left pad portion and a right pad portion that are symmetrically arranged on the left and right sides and are respectively connected to the nose pad portion and the lower pad portion. The nose pad portion, the left pad portion, the lower pad portion, and the right pad portion enclose a breathing cavity for accommodating the human nostril portion or the mouth and nose portion. The buffer pad groove includes a first groove and a second groove. The first groove is arranged to connect the nose pad portion and the soft buffer pad of the second hardness material, and the second groove connects the lower pad portion and the soft buffer pad of the second hardness material. A groove connecting portion that is smoothly connected to the surface of the mask buffer pad is arranged between the first groove and the second groove.

4. The sound-insulating breathing mask according to any one of claims 1 to 3, characterized in that, The soft headband main body is a hollow annular belt, and a third connecting belt extends from the upper left side of the annular belt, and a magic buckle is provided at the free end of the third connecting belt; a fourth connecting belt extends from the upper right side of the annular belt, and a magic buckle is provided at the free end of the fourth connecting belt; a neck covering part extends from the lower part of the annular belt, and a first connecting belt extends from the left side of the neck covering part, and a magic buckle is provided at the free end of the first connecting belt; a second connecting belt extends from the right side of the neck covering part, and a magic buckle is provided at the free end of the second connecting belt.

5. The sound-insulating breathing mask according to claim 4, characterized in that, The left support body and the right support body each include a first connecting section and a second connecting section, the first connecting section is fixedly connected to the upper mounting portion, the first connecting section is provided with a slide rail, the first end of the second connecting section is provided in the slide rail and slides along and is fixed on the slide rail, the second end of the second connecting section is a free end, and a headband mounting hole is provided at its end.

6. The sound-insulating breathing mask according to claim 5, characterized in that, Hook guide structures are provided on both sides of the left and right sides of the mask main frame. The hook guide structures are gradually narrowed from a wide opening to a mounting portion fixing hole. The mounting portion fixing holes are used to install the rotating rods on the left mounting portion and the right mounting portion respectively.

7. The sound-insulating breathing mask according to claim 6, characterized in that, The left mounting part and the right mounting part both include a mounting part body, a fixed end of a rotating rod is provided on one side of the mounting part body, the other end of the mounting part body opposite to the fixed end is set as a free end, the free end is provided with a headband mounting hole, and a headband guide groove is provided on the other side of the mounting part body opposite to the rotating rod, and the headband guide groove guides the headband mounting hole.

8. The sound-insulating breathing mask according to claim 1, wherein The connecting portion of the elbow transfer pipe body is provided with a conical exhaust hole, and a sound insulation cotton installation groove is provided on the upper part of the conical exhaust hole. The sound insulation cotton is also included, and the sound insulation cotton is fixed in the sound insulation cotton installation groove through a sound insulation cotton cover.

9. The sound-insulating breathing mask according to any one of claims 2 to 3, characterized in that, The first hardness material soft buffer pad and the second hardness material buffer pad are both made of silicone.

10. The sound-insulating breathing mask according to claim 8, characterized in that, The swivel assembly further includes a spherical connector, which includes a spherical body and a first connecting end and a second connecting end arranged in parallel at both ends of the spherical body, wherein the first connecting end is connected to the first end of the elbow swivel pipe.

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