CN211794453U

CN211794453U - Concave anti-splash protective mask

Info

Publication number: CN211794453U
Application number: CN202020244841.8U
Authority: CN
Inventors: 邵玺; 王强; 王增辉; 张路; 郭国红; 李轶颖; 李照森; 李勇
Original assignee: Henan Tuoren Beisite Medical Devices Co ltd
Current assignee: Henan Tuoren Beisite Medical Devices Co ltd
Priority date: 2020-03-03
Filing date: 2020-03-03
Publication date: 2020-10-30
Anticipated expiration: 2030-03-03

Abstract

The utility model discloses a splash's protective facial mask is prevented to interior concave type, including housing and fixed band, the housing is including being drum form setting and both ends open-ended drum form, being cylinder and both ends open-ended connecting piece, the bottom fixedly connected with gasbag of drum form, and the bottom fixed connection of connecting piece is on the top of drum form, and the top detachably of connecting piece is connected with filtration system. The filtering system also comprises an inward-sunken splash-proof cover, and an elastic clamping hole is fixedly connected to the splash-proof cover. The utility model increases the area of the filtering membrane through the arrangement of the drum-shaped piece, reduces the ventilation resistance of the filtering membrane and ensures enough air for users; by arranging the splash-proof cover to be of an inward concave type, liquid secretion and the like splashed on the splash-proof cover can be converged, the liquid secretion and the like are prevented from being diffused all around, and the risk of infection is reduced.

Description

Concave anti-splash protective mask

Technical Field

The utility model relates to a medical protective articles field especially relates to a protective facial mask of splash is prevented to interior concave type.

Background

At present, the novel coronavirus suddenly appears large-scale well-spraying outbreak in areas such as Wuhan in Hubei, the virus mainly takes respiratory droplets and close contact as transmission ways, people must wear the mask in order to reduce the risk of infection, the demand of the mask is increased sharply, and the situation of mask shortage appears. The medical staff must expose themselves to the virus environment for the care of the patient, the secretion, blood and the like of the patient can be splashed on the mask of the medical staff in the process of the care of the patient, the mask must be replaced in time for reducing the risk of infection, but the medical staff wearing protective clothing, goggles and other equipment has complicated mask replacement and can expose the face, which undoubtedly increases the risk of infection; meanwhile, the current situation of the shortage of the masks is aggravated by replacing the masks, and even a plurality of hospitals do not have replaceable masks at all. In addition, the mask worn by medical staff at present is not tight in sealing, and can bring facial pressure injury after being worn for a long time.

Disclosure of Invention

An object of the utility model is to provide a protective facial mask that splash is prevented to indent type solves above-mentioned medical staff and changes the problem that the gauze mask difficulty and change gauze mask aggravation gauze mask are in short supply.

The utility model discloses the technical scheme who takes does: the utility model provides a splash's protective facial mask is prevented to interior concave type, includes housing and fixed band, and the housing is including being drum-shaped setting and both ends open-ended drum form, being cylinder and both ends open-ended connecting piece, the bottom fixedly connected with gasbag of drum form, the bottom fixed connection of connecting piece is on the top of drum form, and the top detachably of connecting piece is connected with filtration system.

Preferably, filtration system includes the lid, and a plurality of through-hole that is used for the air admission is seted up at the top of lid, and fixed connection has the filtration membrane that the level set up in the lid, the rotatory buckle of fixedly connected with on the lateral wall of lid, the corresponding card post of fixedly connected with and rotatory buckle on the lateral wall of connecting piece.

Preferably, the filtration system further comprises an inward-concave anti-splash cover, wherein elastic clamping holes which are symmetrically arranged are fixedly connected to the anti-splash cover and are matched with the rotary buckle.

Preferably, the edge of the cover body is fixedly connected with an annular clamping strip along the circumferential direction, the bottom of the cover body is also fixedly connected with an annular limiting strip along the circumferential direction, the limiting strip and the clamping strip are arranged at intervals, and the limiting strip is positioned on the inner side of the clamping strip; and a sealing ring is arranged between the limiting strip and the clamping strip, and the sealing ring is in interference fit with the limiting strip and the clamping strip.

Preferably, the through holes are distributed in a radial shape, and the top of the filter membrane and the bottom of the cover body are welded into a whole.

Preferably, the clamping strip is symmetrically provided with openings, and the rotary buckle is positioned on the side wall of the cover body above the openings; the longitudinal section of the rotary buckle is a rectangle with an opening at one end, and the longitudinal section of the clamping column is also a rectangle.

Preferably, the end part of the rotary buckle far away from the cover body is arranged in an inclined manner and inclines towards the direction far away from the cover body, and the end of the clamping column far away from the opening of the rotary buckle is provided with a guide inclined plane used for guiding and inclining.

Preferably, the bottom of the drum-shaped piece is fixedly connected with a bonding table, and the air bag and the bonding table are bonded into a whole; one side of the laminating table, which is far away from the air bag, is fixedly connected with a one-way valve used for inflating the air bag, and the one-way valve is communicated with the air bag; the gasbag includes the bridge of the nose laminating portion of laminating mutually with the bridge of the nose, with the face laminating portion that just the symmetry set up of laminating mutually of face, bridge of the nose laminating portion is located the upper end of gasbag, the laminating portion of face is located the lower half of gasbag, the laminating portion of face is equipped with the bellying.

Preferably, the filtering membrane comprises a first filtering layer, a second filtering layer, a third filtering layer, a fourth filtering layer and a fifth filtering layer which are sequentially attached from outside to inside, and the five filtering layers are prepared by pressing the edges of the filtering layers by adopting an ultrasonic welding technology; the first filter layer and the fifth filter layer are both made of non-woven fabrics, the second filter layer and the third filter layer are both made of melt-blown fabrics, and the fourth filter layer is made of electrostatic cotton; or the first filter layer and the fifth filter layer are both made of non-woven fabrics, the second filter layer and the fourth filter layer are both made of electrostatic cotton, and the third filter layer is made of melt-blown fabrics.

Adopt above-mentioned technical scheme, the utility model has the advantages of it is following: the utility model increases the area of the filtering membrane through the arrangement of the drum-shaped piece, reduces the ventilation resistance of the filtering membrane and ensures enough air for users; the splashing prevention cover is arranged to be inwards concave, so that liquid secretion and the like splashed on the splashing prevention cover can be converged, the splashing prevention cover is prevented from being diffused to the periphery, and the risk of infection is reduced; meanwhile, the anti-splash cover is only needed to be replaced after being polluted, so that the using amount of the mask is reduced. Through the change to the lid, also reduced the use amount of gauze mask, further alleviated the nervous situation of gauze mask when the epidemic situation suddenly breaks out.

The air bag is tightly attached to the face of a user, the sealing performance is good, pollutants such as bacteria and viruses in the air are prevented from entering the nasal cavity or the oral cavity of medical staff from a gap between the mask and the face, and the situation that the face is crushed by the air bag when the mask is worn for a long time is also avoided.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a cross-sectional view of FIG. 1;

fig. 3 is a schematic structural view of the cover body of the present invention;

FIG. 4 is a schematic structural view of the splash cover of the present invention;

FIG. 5 is a schematic view of the connection structure of the cover, the housing and the splash-proof cover of the present invention;

FIG. 6 is a schematic view of the structure of the air bag of the present invention;

fig. 7 is a schematic structural view of the filtration membrane of the present invention.

Detailed Description

The utility model provides a splash's protective facial mask is prevented to interior concave type, includes housing 1 and fixed band (not drawn in the figure), and housing 1 is including being drum-shaped setting and both ends open-ended drum form 2, being cylinder and both ends open-ended connecting piece 3, and the bottom fixedly connected with gasbag 18 of drum form 2, the bottom fixed connection of connecting piece 3 is on the top of drum form 2, and the top detachably of connecting piece 3 is connected with filtration system. Filtration system includes lid 4, and a plurality of through-hole 5 that is used for the air admission is offered at the top of lid 4, and through-hole 5 is radial distribution, and lid 4 internal fixation is connected with the filtration membrane 6 of level setting, and filtration membrane 6 top is as an organic whole with the bottom welding of lid 4. The drum-shaped piece 2 enlarges the area of the filtering membrane 6, reduces the ventilation resistance, ensures that enough air enters the mouth mask, and improves the smoothness of breathing.

The edge of lid 4 has seted up opening 8 along its annular card strip 7 of circumference fixedly connected with on the card strip 7 symmetrically, the rotatory buckle 9 of fixedly connected with on the lateral wall of opening 8 top lid 4, fixedly connected with and the corresponding card post 10 of rotatory buckle 9 on the lateral wall of connecting piece 3. The cover body 4 is clamped on the housing 1 through the arrangement of the rotary buckle 9 and the clamping column 10, and the cover body 4 can be separated from the housing 1 through rotating the cover body 4 when the cover body 4 needs to be replaced. The form of the rotary buckle 9 can have various implementation forms, and the implementation forms are all within the protection scope of the patent; in this embodiment, the longitudinal section of the rotary buckle 9 is rectangular with an opening 8 at one end, and the longitudinal section of the clamping column 10 is also rectangular. In order to facilitate the installation and the disassembly, the end part of the rotary buckle 9 far away from the cover 4 is arranged in an inclined manner and inclines towards the direction far away from the cover 4, the end of the clamping column 10 far away from the opening of the rotary buckle 9 is provided with a guide inclined plane 11 for guiding and inclining, the guide inclined plane 11 enables the clamping column 10 to be a rectangle with a unfilled corner, and the arrangement has the function of guiding and is convenient for the assembly between the clamping column 10 and the rotary buckle 9. When in use, the cover body 4 is rotated, and the clamping column 10 is clamped in the rotating buckle 9, so that the cover body 4 is installed; when the cover 4 needs to be replaced, the cover 4 can be removed by rotating the cover 4 reversely.

The bottom of the cover body 4 is also fixedly connected with an annular limiting strip 12 along the circumferential direction, the limiting strip 12 and the clamping strip 7 are arranged at intervals, and the limiting strip 12 is positioned on the inner side of the clamping strip 7; install sealing washer 13 between spacing strip 12 and card strip 7, sealing washer 13 and spacing strip 12, card strip 7 interference fit to prevent that the air from reaching housing 1 from the lateral wall department of lid 4 not filtering membrane 6, ensured the filter effect.

The filtering system further comprises an inward-concave anti-splash cover 14 for shielding the cover body 4, elastic clamping holes 16 which are symmetrically arranged are fixedly connected to the anti-splash cover 14, the elastic clamping holes 16 can be located at the bottom or on the side wall of the anti-splash cover 14, and the elastic clamping holes 16 are sleeved on the outer wall of the rotary buckle 9. Compared with the flat-type splash cover 14, the inwardly-concave splash cover 14 can collect liquid secretion and the like splashed on the splash cover 14, so that the liquid secretion and the like are prevented from being diffused all around, and the risk of infection is reduced. And the elastic card hole 16 is arranged to facilitate the installation and the disassembly of the anti-splash cover 14, so that the anti-splash cover 14 can be replaced in time when being polluted, when the anti-splash cover 14 is polluted by secretion of a patient, a user only needs to replace the anti-splash cover 14, and the anti-splash cover can be operated in any occasions, thereby reducing the frequency of replacing the mask of the user, reducing the using amount of the mask of the user, and reducing the probability of exposing the face of the user in the process of replacing the mask.

The bottom of the drum-shaped part 2 is fixedly connected with a joint platform 17, and the air bag 18 and the joint platform 17 are bonded into a whole; one side of the attaching table 17, which is far away from the air bag 18, is fixedly connected with a one-way valve 19 for inflating the air bag 18, and the one-way valve 19 is communicated with the air bag 18; the air bag 18 comprises a nose bridge attaching portion 20 attached to the nose bridge, face attaching portions 21 attached to the face and symmetrically arranged, the nose bridge attaching portion 20 is located at the upper end of the air bag 18, the face attaching portion 21 is located at the lower half portion of the air bag 18, and the face attaching portion 21 is provided with a protruding portion 22. Due to the arrangement, the air bag 18 is tightly attached to the face, the sealing performance is good, and pollutants such as bacteria and viruses in the air are prevented from entering the nasal cavity or the oral cavity of medical staff from a gap between the mask and the face. By filling the air bag 18 with air, the air bag 18 can be well attached to the face, the comfort level of the air bag 18 is improved, and the face of medical staff is not indented.

The filtering membrane 6 comprises a first filtering layer 23, a second filtering layer 24, a third filtering layer 25, a fourth filtering layer 26 and a fifth filtering layer 27 which are sequentially attached from outside to inside, and the five filtering layers are prepared by laminating the edges of the filtering layers by adopting an ultrasonic welding technology; the first filter layer 23 and the fifth filter layer 27 are both made of nonwoven fabric, the second filter layer 24 and the third filter layer 25 are both made of melt-blown fabric, and the fourth filter layer 26 is made of electrostatic cotton; alternatively, the first filter layer 23 and the fifth filter layer 27 are both composed of nonwoven fabric, the second filter layer 24 and the fourth filter layer 26 are both composed of electrostatic cotton, and the third filter layer 25 is composed of meltblown fabric. Five layers of filter layers are formed by adopting ultrasonic welding technology pressing at the edges of the filter layers, so that the sealing performance of the filter membrane 6 is ensured, the air entering the filter membrane 6 is prevented from leaking from the side wall, and the air is prevented from entering the filter membrane 6 from the side wall of the filter membrane 6 to influence the filtering effect.

When the mask is used, the clamping column 10 is arranged on the rotary buckle 9 by the rotary cover body 4, the clamping hole 16 of the anti-splash cover 14 is sleeved on the rotary buckle 9 according to requirements, the air bag is inflated by an injector and the like through the one-way valve, the mask is fixed on the head of a user through the fixing band, and the mask is finely adjusted according to the face of the user; air enters from the side wall of the splash-proof cover 14 and sequentially passes through the through hole 5 and the filtering membrane 6 to reach the housing 1; during use, the splash cover 14 or the cover body 4 can be replaced.

The above embodiments are not intended to limit the shape, material, structure, etc. of the present invention in any form, and all of the technical matters of the present invention belong to the protection scope of the present invention to any simple modification, equivalent change and modification of the above embodiments.

Claims

1. The utility model provides a splash's protective facial mask is prevented to interior concave type, includes housing and fixed band, its characterized in that: the housing is including being drum-shaped setting and both ends open-ended drum form piece, being cylinder and both ends open-ended connecting piece, the bottom fixedly connected with gasbag of drum form piece, the bottom fixed connection of connecting piece is on the top of drum form piece, and the top detachably of connecting piece is connected with filtration system.

2. The concave-inward splash-proof protective mask according to claim 1, wherein: filtration system includes the lid, and a plurality of through-hole that is used for the air admission is seted up at the top of lid, and fixed connection has the filtration membrane that the level set up in the lid, the rotatory buckle of fixedly connected with on the lateral wall of lid, the corresponding card post of fixedly connected with and rotatory buckle on the lateral wall of connecting piece.

3. The concave-inward splash-proof protective mask according to claim 2, wherein: the filtering system further comprises an inward-concave anti-splashing cover, elastic clamping holes which are symmetrically arranged are fixedly connected to the anti-splashing cover, and the elastic clamping holes are matched with the rotating buckles.

4. The concave-inward splash-proof protective mask according to claim 3, wherein: the edge of the cover body is fixedly connected with an annular clamping strip along the circumferential direction of the cover body, the bottom of the cover body is also fixedly connected with an annular limiting strip along the circumferential direction of the cover body, the limiting strip and the clamping strip are arranged at intervals, and the limiting strip is positioned on the inner side of the clamping strip; and a sealing ring is arranged between the limiting strip and the clamping strip, and the sealing ring is in interference fit with the limiting strip and the clamping strip.

5. The concave-inward splash-proof protective mask according to claim 2, wherein: the through holes are radially distributed, and the top of the filtering membrane and the bottom of the cover body are welded into a whole.

6. The concave anti-splash respirator of claim 5, wherein: the clamping strips are symmetrically provided with openings, and the rotary buckles are positioned on the side wall of the cover body above the openings; the longitudinal section of the rotary buckle is a rectangle with an opening at one end, and the longitudinal section of the clamping column is also a rectangle.

7. The concave anti-splash respirator of claim 6, wherein: the tip that the lid was kept away from to rotatory buckle is the slope form and sets up and its slope to the direction of keeping away from the lid, keeps away from rotatory buckle open-ended one end on the card post and is equipped with a direction inclined plane that is used for the direction and the slope sets up.

8. The splash-proof protective mask as claimed in claim 1, wherein: the bottom of the drum-shaped piece is fixedly connected with a laminating table, and the air bag and the laminating table are bonded into a whole; one side of the laminating table, which is far away from the air bag, is fixedly connected with a one-way valve used for inflating the air bag, and the one-way valve is communicated with the air bag; the gasbag includes the bridge of the nose laminating portion of laminating mutually with the bridge of the nose, with the face laminating portion that just the symmetry set up of laminating mutually of face, bridge of the nose laminating portion is located the upper end of gasbag, the laminating portion of face is located the lower half of gasbag, the laminating portion of face is equipped with the bellying.

9. The splash-proof protective mask as claimed in claim 2, wherein: the filtering membrane comprises a first filtering layer, a second filtering layer, a third filtering layer, a fourth filtering layer and a fifth filtering layer which are sequentially attached from outside to inside, wherein the five filtering layers are prepared by pressing the edges of the filtering layers by adopting an ultrasonic welding technology; the first filter layer and the fifth filter layer are both made of non-woven fabrics, the second filter layer and the third filter layer are both made of melt-blown fabrics, and the fourth filter layer is made of electrostatic cotton; or the first filter layer and the fifth filter layer are both made of non-woven fabrics, the second filter layer and the fourth filter layer are both made of electrostatic cotton, and the third filter layer is made of melt-blown fabrics.