High-fitting high-protection KN95 mask

Abstract

The utility model provides a high-fitting high-protection KN95 mask which comprises a mask body, ear ropes, a telescopic assembly and a breather valve, the two ear ropes are arranged, and one ends of the two ear ropes are wound on a reel, so that the two ear ropes are pulled outwards at the same time through cooperation of the ear ropes and the telescopic assembly to enable the reel and a mounting column to rotate relatively; when a user wears the mask, the reset coil spring is driven to be stretched or wound, the ear rope can be stretched or shortened, the length of the ear rope can be adjusted, the fitting degree of the inner wall of the mask and the face of the user during wearing is improved, and the problems that the size of the mask cannot be adjusted according to the face shape of the user, the face shape of the user is large, and the user cannot wear the mask for a long time are solved. The problems that in the prior art, the positions behind ears can be tightened by the tensioned ear belts, discomfort is generated, and the mask is not convenient for some users to use are solved, so that the mask can be worn more closely and comfortably, and the protection effect of the mask is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of masks, in particular to a KN95 mask with high adhesion and high protection. BACKGROUND

[0002] The N95 mask is one of nine particle protection masks certified by NIOSH, meets the N95 standard, and the product passing the NIOSH review can be called the N95 mask, and the KN95 mask is a Chinese substitute for the N95 mask, and can have a filtration efficiency of more than 95% for particles with an aerodynamic diameter of 0.075 mu m + / - 0.020 mu m, the existing KN95 mask cannot be adjusted in size according to the face shape of a user when being worn, so that the feeling of users with different face shapes when wearing the mask is greatly different, although the ear band of the mask has a certain tightness, if the face shape of the user is large, the ear band is pulled tight when the mask is worn for a long time, so that the part behind the ear is squeezed, and the use of part of the user is not convenient. CONTENT OF THE UTILITY MODEL

[0003] The utility model aims at solving the above-mentioned problem and provides a KN95 mask with high adhesion and high protection.

[0004] The technical scheme of the application is implemented as follows:

[0005] The application provides a KN95 mask with high adhesion and high protection, which comprises a mask body, ear ropes, a telescopic assembly and a breathing valve, a plurality of through holes are formed in the bottom edge of the mask body, two groups of ear ropes are arranged, the two groups of ear ropes are symmetrically arranged on the two sides of the mask body, the telescopic assembly is arranged on the front side of the mask body and below the breathing valve.

[0006] The telescopic assembly comprises an upper cover body, a containing groove, a reset coil spring, a winding turntable and a lower cover body, the upper cover body is arranged on the top of the containing groove, the lower cover body is arranged on the bottom of the containing groove, a fixed column is arranged on the middle part above the lower cover body, a first rope outlet and a second rope outlet are symmetrically formed in the two sides of the containing groove, a winding shaft is arranged on the winding turntable, an installation column is arranged in the middle part of the winding shaft and located in the middle part of the winding shaft, the installation column is sleeved on the fixed column, so that the winding turntable is installed on the lower cover body, the winding shaft, the installation column and the fixed column are coaxially arranged, one end of the two groups of ear ropes is wound in the winding shaft and the other end is respectively pulled out from the first rope outlet and the second rope outlet, and then the ear ropes are connected with the top edge of the mask body through the through holes in sequence along the S shape, the reset coil spring is installed in the winding shaft, one end of the reset coil spring is inserted and fixed on the installation column, and the other end is fixed on the winding shaft, when the winding shaft and the installation column rotate relative to each other, the reset coil spring is stretched or wound, so that the ear ropes can be elongated or shortened.

[0007] In one embodiment, the breathing valve comprises a valve seat, a valve core and a valve cover buckled on the valve seat, the valve cover is provided with an air inlet hole, a plurality of air passages are arranged on the valve seat in a spaced manner, the side wall of the air passage is provided with an annular protruding portion away from the valve seat, the inner diameter of the annular protruding portion is the same as the outer diameter of the valve core, when the valve cover is buckled on the valve seat, the valve core is located in the annular protruding portion, and the valve core abuts at the opening of the air passage, so that the breathing valve forms a seal.

[0008] In one embodiment, the valve core is a honeycomb activated carbon sheet.

[0009] In one embodiment, the thickness of the valve core is 0.5-1 mm.

[0010] In one embodiment, the depth of the annular protruding portion is higher than the thickness of the valve core.

[0011] In one embodiment, the inner surface of the inner layer of the cover body is provided with a nose bridge strip at the top position.

[0012] In one embodiment, the outer side of the ear rope is movably provided with an ear support.

[0013] The advantages or beneficial effects of the above technical solutions at least include:

[0014] The KN95 mask with high adhesion and high protection provided by the application has the following advantages: the two ends of the two groups of ear ropes are respectively wound on the spools of the telescopic assembly, so that the spools and the mounting columns are relatively rotated by simultaneously pulling the two groups of ear ropes outward through the cooperation of the ear ropes and the telescopic assembly, the return coil spring is stretched or wound, the ear ropes can be elongated or shortened, the length of the ear ropes can be adjusted, the needs of users with different face shapes for the mask are met, the mask is more adhesively worn on the face of the user, gaps are prevented, the protection effect is improved, the mask is convenient to carry, the ear ropes are not easily damaged, the service life of the ear ropes is prolonged, the experience of the user is further improved, and the practicality of the mask is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] The accompanying drawings illustrate exemplary embodiments of the application and together with the description, explain the principles of the application. These drawings are included to provide a further understanding of the application and are incorporated into and constitute a part of this specification.

[0016] Figure 1 The front view structural schematic diagram of the embodiment of the application is shown;

[0017] Figure 2 The structural schematic diagram of one viewing angle of the embodiment of the application is shown;

[0018] Figure 3 The embodiment of the application is shown Figure 1An enlarged schematic view at A in the middle;

[0019] Figure 4 A structure schematic view of the telescopic assembly in the embodiment of the application is shown;

[0020] Figure 5 A structure schematic view of the telescopic assembly in the embodiment of the application is shown;

[0021] Figure 6 A structure schematic view of the breathing valve in the embodiment of the application is shown;

[0022] Reference signs: 1, cover body; 11, through hole; 12, nose bridge strip;

[0023] 2, ear rope; 21, ear support;

[0024] 3, telescopic assembly; 31, upper cover body; 32, accommodating groove; 321, first rope outlet; 322, second rope outlet; 33, reset coil spring; 34, winding turntable; 341, winding shaft; 342, mounting column; 35, lower cover body; 351, fixing column;

[0025] 4, breathing valve; 41, valve seat; 411, air passage; 412, annular protruding part; 42, valve core; 43, valve cover; 431, air inlet hole. DETAILED DESCRIPTION

[0026] Embodiments of the present application will be described in more detail by referring to the attached drawings. Although certain embodiments of the present application are shown in the drawings, it is understood that the present application can be implemented in various forms and should not be interpreted as being limited to the embodiments set forth herein, but rather these embodiments are provided for more thorough and complete understanding of the present application. It should be understood that the drawings and embodiments of the present application are for illustrative purposes only and are not intended to limit the scope of the present application.

[0027] It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0028] It should be understood that the term "comprising" and variations thereof as used in the present application are open and inclusive, i.e., "comprising but not limited to". The term "based on" is "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". Related definitions of other terms will be given in the following description. It should be noted that the "first", "second", etc. concepts mentioned in the present application are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0029] It should be noted that the modification of "one", "a number of" mentioned in the present application is illustrative but not restrictive, and those skilled in the art should understand that unless otherwise explicitly indicated in the context, it should be understood as "one or more".

[0030] The names of the messages or information exchanged between the devices in the embodiments of the present application are only for illustrative purposes, and are not intended to limit the scope of the messages or information.

[0031] Referring to Figures 1-6 A high-fitting and high-protection KN95 mask, comprising a mask body 1, ear ropes 2, an extension assembly 3 and a breathing valve 4, a plurality of through holes 11 are formed in the bottom edge of the mask body 1, two groups of ear ropes 2 are provided, and the two groups of ear ropes 2 are symmetrically arranged on the two sides of the mask body 1, the extension assembly 3 is arranged on the front middle part of the mask body 1 and below the breathing valve 4;

[0032] The extension assembly 3 comprises an upper cover body 31, a containing groove 32, a reset coil spring 33, a winding disc 34 and a lower cover body 35, the upper cover body 31 is arranged on the top of the containing groove 32, the lower cover body 35 is arranged on the bottom of the containing groove 32, a fixing column 351 is arranged on the middle part above the lower cover body 35, first and second rope outlets 321 and 322 are symmetrically formed on the two sides of the containing groove 32, a winding shaft 341 is arranged on the winding disc 34, an installation column 342 is arranged in the middle part of the winding shaft 341, the winding disc 34 is arranged on the lower cover body 35 by sleeving the installation column 342 on the fixing column 351, the winding shaft 341, the installation column 342 and the fixing column 351 are coaxially arranged to form a further effective positioning cooperation, one end of the two groups of ear ropes 2 is wound in the winding shaft 341 and the other end is respectively pulled out from the first and second rope outlets 321 and 322, and then is sequentially arranged through the through holes 11 and connected with the top edges of the mask body 1, the reset coil spring 33 is arranged in the winding shaft 341, one end of the reset coil spring 33 is inserted and fixed on the installation column 342, and the other end is fixed on the winding shaft 341, when one end of the ear rope 2 is stretched, the winding shaft 341 and the installation column 342 are driven to rotate, at this time, the reset coil spring 33 is also stretched to generate elastic force, when it is needed to shorten the ear rope 2, one end of the ear rope 2 is pulled again under the action of the elastic force, the winding shaft 341 is reversely rotated until the reset coil spring 33 is reset, at this time, the ear rope 2 is wound on the winding shaft 341 again, the operation is simple and convenient, and the requirements of different users are met, when the winding shaft 341 and the installation column 342 rotate relatively, the reset coil spring 33 is stretched or wound, so that the ear rope 2 can be elongated or shortened, the length of the ear rope 2 can be quickly adjusted, and it is convenient for people with different face sizes to wear, and the fitting degree between the mask and the user during wearing is improved;

[0033] The breathing valve 4 comprises a valve seat 41, a valve core 42 and a valve cover 43 buckled on the valve seat 41, so that the valve cover 43 can be disassembled or mounted on the valve seat 41. When the valve core 42 is dirty or aged, the valve cover 43 can be opened to replace the valve core 42, so as to ensure the cleanliness of the breathing valve 4. The valve cover 43 is provided with an air inlet hole 431, and the valve seat 41 is annularly provided with a plurality of air passages 411 distributed at intervals. The side wall of the air passage 411 away from the valve seat 41 is provided with an annular protruding portion 412, the inner diameter of the annular protruding portion 412 is the same as the outer diameter of the valve core 42, the valve core 42 is a honeycomb activated carbon sheet with a thickness of 0.5mm-1mm, which is used for adsorbing some odor gas, reducing the inhalation amount of odor gas and improving the filtering effect. It can not only ensure the effectiveness of air pollution isolation during inhalation, but also ensure the portability of the breathing valve 4, effectively reduce the production cost of the breathing valve 4, the depth of the annular protruding portion 412 is higher than the thickness of the valve core 42, so as to play a protection role on the valve core 42, ensure the matching relationship between the valve core 42 and the annular protruding portion 412, and ensure the cleanliness of the valve core 42, so as to achieve the blocking effect. When the valve cover 43 is buckled on the valve seat 41, the valve core 42 is located in the annular protruding portion 412, and the valve core 42 abuts against the opening of the air passage 411, so that the breathing valve 4 forms a seal.

[0034] Based on the above structure, due to the arrangement of the telescopic assembly 3 structure, one end of the two groups of ear ropes 2 is respectively wound in the reel 341 and the other end is respectively drawn out from the first rope outlet 321 and the second rope outlet 322, and then connected with the top edge of the cover body 1 after passing through the through hole 11 in sequence, and the reset coil spring 33 is installed in the reel 341. Therefore, by simultaneously pulling the two groups of ear ropes 2 outward, the reel 341 and the mounting column 342 are relatively rotated, driving the reset coil spring 33 to be stretched or wound. When one end of the ear rope 2 is stretched, the reel 341 and the mounting column 342 are driven to rotate, at this time, the reset coil spring 33 is also stretched, generating elastic force. When it is needed to wind the ear rope 2, the reel 341 is reversely rotated until reset under the action of the elastic force, at this time, the ear rope 2 is wound on the reel 341 again, and the ear rope 2 can be elongated or shortened, realizing the length adjustment of the ear rope 2, so that the length of the ear rope 2 can be adapted to the user, improving the fit degree, preventing the gap, improving the protection function, shortening the ear rope 2, facilitating the user to store, carrying conveniently when going out, being neat and beautiful, and having better use effect, prolonging the service life of the ear rope 2, and improving the practicality of the mask;

[0035] Further, since the depth of the annular protruding portion 412 of the valve seat 41 is higher than the thickness of the valve core 42, by abutting the valve core 42 in the annular protruding portion 412, the valve core 42 is abutted at the opening of the air passage 411, the breathing valve 4 forms a seal, the side wall in the annular protruding portion 412 plays a dustproof role for the valve core 42, thereby ensuring the cleanliness of the valve core 42, and ensuring the tightness of the valve core 42 and the valve seat 41 when worn, further improving the air tightness of the breathing valve 4 as a whole, effectively isolating the pollutants in the external air from entering the mask, improving the protection effect, and further effectively adsorbing odors through the activated carbon material of the valve core 42, ensuring the breathing effect when worn, improving the protection function, and increasing the practicality of the mask.

[0036] In one embodiment, referring to Figure 1 , the inner surface of the mask body 1 is provided with a nose bridge 12 at the top position, which can be fitted and shaped according to different face shapes, prevent glasses from forming water vapor, and have better comfort, and play a fixing role.

[0037] In one embodiment, referring to Figure 1 and Figure 2 , the outer side of the ear rope 2 is movably provided with an ear support 21, which can increase the stress area of the back of the ear, reduce the stress pressure of the back of the ear, and change the position of the ear support 21 through the activity, adapt to the user according to the length of the ear rope 2, and solve the pain of the back of the ear.

[0038] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0039] Those skilled in the art should understand that the above embodiments are only for clearly illustrating the present application, and are not intended to limit the scope of the present application. Based on the above disclosure, other changes or modifications can also be made by those skilled in the art, and these changes or modifications are still within the scope of the present application.

Claims

1. A high-fitting and high-protective KN95 mask, characterized in that: The utility model provides a kind of earphone, including cover (1), ear cord (2), telescopic component (3) and breathing valve (4), the bottom edge of the cover (1) is equipped with multiple through holes (11), the ear cord (2) is provided with two groups, two groups of ear cord (2) are respectively symmetrically arranged in the two sides of the cover (1), the telescopic component (3) is arranged in the front middle part of the cover (1) and is located below the breathing valve (4); The telescopic component (3) includes upper cover (31), containing groove (32), reset coil spring (33), winding carousel (34) and lower cover (35), the upper cover (31) is covered in the top of the containing groove (32), the lower cover (35) is clamped in the bottom of the containing groove (32), the middle part above the lower cover (35) is provided with fixed column (351), the two sides of the containing groove (32) are symmetrically provided with first rope outlet (321) and second rope outlet (322), the winding carousel (34) is provided with reel (341), the winding carousel (34) is provided with mounting column (342) and is located in the middle part of the reel (341), by the mounting column (342) is sleeved on the fixed column (351), the winding carousel (34) is installed on the lower cover (35), the reel (341), the mounting column (342) and the fixed column (351) are coaxially arranged, one end of two groups of ear cord (2) is respectively wound in the reel (341) and the other end is respectively from the first rope outlet (321) and the second rope outlet (322) and is sequentially arranged through the through hole (11) and is connected with the top edge of the cover (1) two corners, the reset coil spring (33) is installed in the reel (341), one end of the reset coil spring (33) is inserted and fixed on the mounting column (342), the other end is fixed on the reel (341), when the reel (341) and the mounting column (342) rotate relatively, the reset coil spring (33) is stretched or wound, so that the ear cord (2) can be lengthened or shortened.

2. The high fit and high protection KN95 mask according to claim 1, wherein: The breathing valve (4) includes valve seat (41), valve core (42) and valve cover (43) buckled on the valve seat (41), the valve cover (43) is provided with air inlet hole (431), the valve seat (41) is provided with a plurality of interval distribution air passages (411), the sidewall of the air passage (411) is provided with annular protruding portion (412) away from the valve seat (41), the inner diameter of the annular protruding portion (412) is same with the outer diameter of the valve core (42), when the valve cover (43) is buckled on the valve seat (41), the valve core (42) is located in the annular protruding portion (412), the valve core (42) is abutted on the opening of the air passage (411), so that the breathing valve (4) forms seal.

3. The high fit and high protection KN95 mask according to claim 2, wherein: The valve core (42) is honeycomb activated carbon sheet.

4. The high fit and high protection KN95 mask of claim 2, wherein: The thickness of the valve core (42) is 0.5mm-1mm.

5. The high fit and high protection KN95 mask as claimed in claim 2, wherein: The depth of the annular protruding portion (412) is higher than the thickness of the valve core (42).

6. The high fit and high protection KN95 mask of claim 1, wherein: The inner layer surface of the cover body (1) is provided with a nose bridge strip (12) at the top position.

7. The high fit and high protection KN95 mask as claimed in claim 1, wherein: The outer side of the ear rope (2) is movably provided with an ear support (21).

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