CN202160695U

CN202160695U - Dustproof mask

Info

Publication number: CN202160695U
Application number: CN2011202397775U
Authority: CN
Inventors: 江宝生; 何忠仁
Original assignee: NINGBO SHENGYURUI MEDICAL APPLIANCES CO Ltd
Current assignee: NINGBO SHENGYURUI MEDICAL APPLIANCES CO Ltd
Priority date: 2011-07-08
Filing date: 2011-07-08
Publication date: 2012-03-14
Anticipated expiration: 2021-07-08

Abstract

The utility model relates to a protective appliance, which is used for preventing or reducing dust in air entering respiratory organs of a human body. A dustproof mask comprises a face cup and an annular face cover; one end of the face cup is butted with one end of the annular face cover; an air filtering device is arranged at the other end of the face cup; the other end of the annular face cover is adhered to the face at the periphery of the mouth and the nose of a user; and a nose adhering part, an adhering part of the joint of the cheekbone and the maxilla, a maxilla adhering part, a mouth corner adhering part and an inferior maxilla adhering part are arranged on the other end of the annular mask from the top down in sequence. The dustproof mask is comfortable, has a good dustproof effect and solves the problem of poor comfortableness in use of the existing dustproof mask with a good filtering effect.

Description

Anti-dust respirator

Technical field

The utility model relates to the keeping device that prevents or reduce dust entering human body respiration organ in the air, relates in particular to a kind of anti-dust respirator.

Background technology

In order to prevent or reduce the respiratory apparatus of airborne dustproof entering human body, especially in the environment of air purity difference, people are through wearing mouth mask or dust mask is protected.

Common mouth mask commonly used is for to be made into mask body with the multilayer gauze; Edge at mask body is provided with frenulum, and mask body covers on user's the nose and mouth during use, and frenulum ties up on the ear mask body is fixed; But mostly this kind mouth mask is disposable; Utilize rate variance, the mask main body edge is poor with facial sealing effectiveness, the poor filtration effect of mask body, so the anti-dust performance of mouth mask is poor.

At Chinese patent number is ZL012691143; Name is called in the patent documentation of " health and epidemic prevention anti-dust respirator " and discloses a kind of mouth mask; This mouth mask comprises cover body and the frenulum that is arranged on the cover body both sides; Be provided with the mouth pad that is made with cotton yarn in the inner central section position of cover body, the periphery of mouthful pad is made with silica gel, and the middle part of mouthful pad is filled with activated carbon.Through mouthful pad being set in the middle of the cover body and filling activated carbon, the filter effect of mask improves, but the cover body edge fail to improve with facial sealing, so the dustproof effect of mouth mask is still not good enough.

For the cover body that makes mouth mask can fit in face, the mouth mask that has is through built-in iron plate or iron wire at the edge of cover body, during use; Utilize the flexible of iron plate or iron wire; Make iron plate or iron wire flexural deformation and be fitted on user's the nose, this kind mode can only locally change cover body and facial applying effect, and the whole structure of applying is still not good; And through after curved the scratching repeatedly, the applying effect can further deterioration.

At Chinese patent number is ZL032440804; Name is called in the patent documentation of " removable sealed air cushion mouth mask " and discloses a kind of mouth mask; This mouth mask comprises air cushion and cover body; The both sides of cover body are provided with ear and ventilating part, and ventilating part is provided with passage, and passage is provided with the cavernous body that matches.During use through cushion seals be fitted in nose and mouth around, gas filters the back through cavernous body and gets into the inner and person's of the being used suction of cover body.Mouth mask in this patent all has tangible progress than above-mentioned various mouth masks on the strainability of cover body and cover body and facial sealing, so filter effect has tangible lifting.But it is not enough below the mouth mask in this patent also has: when sealing, in case when the air cushion breakage occurring and causing gas to leak, then sealing can almost completely be lost, so poor reliability with the form of air cushion; The shape of air cushion does not design to face's structure of human body, arrive the cover body edge and all fit together with face, then has only through increasing air cushion to be pressed in the power on the face; Air cushion can both be deformed to everywhere be fitted on the face, certainly will cause facial suffered extruding force weight to differ so everywhere, cause the user that sense of discomfort is arranged; When wearing for a long time; Redness can appear in stressed heavy position, as in the summer of sweltering heat, when serious even inflammation can occur.

The utility model content

That the utility model provides is a kind of not only comfortable, dustproof effect but also good anti-dust respirator, the problem of comfortableness difference during existing use of anti-dust respirator that has solved existing good filtration effect.

Above technical problem solves through following technical proposal: a kind of anti-dust respirator; Comprise face cup and annular face shield; One end of said cup and an end of said annular face shield are docking together; The other end of said cup is provided with gas-filtering device; The other end of said annular face shield is arranged to fit with user's mouth and perirhinal face, and the other end of said annular face shield is disposed with nose sticking part, cheekbone maxilla junction sticking part, maxilla sticking part, corners of the mouth sticking part and mandibular sticking part from the top down." nose sticking part " be meant annular face shield be used for laterally stride across user's bridge of the nose bone and along bridge of the nose bone to the part that extends below on the nose that is fitted in the user; " cheekbone maxilla junction sticking part " be meant annular face shield be used for begin along user's cheekbone maxilla junction to the left and right both sides from said nose sticking part termination and extend the part on the facial left and right sides that is fitted in the user; " maxilla sticking part " be meant annular face shield be used for begin the part on the right ends that extends below the upper lip that is fitted in the user on the maxilla from said cheekbone maxilla junction sticking part clearing end; " mandibular sticking part " is meant the part that is used between user's chin and lower lip and along user's the mouth left and right sides, up being fitted in user's face of annular face shield, and " corners of the mouth sticking part " is meant the part that is used for extending and being fitted in along user's the corners of the mouth user's facial corners of the mouth place of annular face shield.During use through frenulum or other parts with on the novel face that is fixed on the user of this use; The zone that a end away from the face cup of annular face shield is fitted on user's the face and makes nose and mouth all be positioned at annular face shield to be surrounded; Form the cavity of a sealing between face cup, annular face shield and the face; Air can only be through this cavity of the turnover of the gas-filtering device on the face cup; The annular face shield is designed to be connected in sequence by nose sticking part, cheekbone maxilla junction sticking part, maxilla sticking part, corners of the mouth sticking part and mandibular sticking part with a facial end of fitting; Corresponding sticking part is fitted on the facial corresponding position so that annular face shield and face are complementary the stressed basically identical that respectively goes, the purpose of the comfortableness when reaching the improvement use.

As preferably; Said annular face shield is the ring channel structures that end face protruding to the direction away from said cup away from the end face of an end of said cup, the other end caves in to the direction away from said cup, and said cup is connected on the lateral wall of said annular face shield.Ring surface is covered with counts ring channel structures, can keep annular face shield and face that bigger contact-making surface is arranged, and deadweight simultaneously is lighter, good springiness; Just can make the novel face cup that is fixed on of this use from the then less power of heavy and light, thus the comfortableness when this kind version of annular face shield can be used further optimized, good springiness, annular face shield can adapt to the otherness of the face of Different Individual better.

As preferably; The outer surface of the diapire of said annular face shield and the outer surface of madial wall all are protruding arcwall face, and the bending radius of the cross section of the outer surface of the madial wall of said nose sticking part is greater than the bending radius of the cross section of the outer surface of the madial wall of said mandibular sticking part.Arcwall face makes when annular face shield is fitted in face not can tingle, further improves the comfortableness when using; Fat deposit on the nose usually can be thinner than the fat deposit at position between chin and the lower lip; And nose is than smooth more in addition between chin and the lower lip; So " bending radius of the cross section of the outer surface of the madial wall of said nose sticking part is greater than the bending radius of the cross section of the outer surface of the madial wall of said mandibular sticking part " can make the nose sticking part be fitted on the nose better; The mandibular sticking part is fitted on the face between chin and the lower lip better, and comfortableness is improved.

As preferably; The bending radius of the cross section of the outer surface of the diapire of said nose sticking part is less than the bending radius of the cross section of the outer surface of the diapire of said mandibular sticking part, and the arc length of the cross section of the outer surface of the diapire of said nose sticking part is less than the arc length of the cross section of the outer surface of the diapire of said mandibular sticking part.Be complementary with the characteristics of human body of corresponding position, improve the comfortableness when using.

As preferably, the end face away from said cup one end of said nose sticking part tilts towards said cup.Be complementary with the characteristics of human body of corresponding position, improve the comfortableness when using.

As preferably, said corners of the mouth sticking part from the distance of said cup greater than the distance of said nose sticking part from said cup, said corners of the mouth sticking part from the distance of said cup greater than the distance of said mandibular sticking part from said cup.After the corners of the mouth of human body leaned on than the position between nose and chin and the lower lip more, each position that this kind design can make annular face shield was complementary with the corresponding position of face better, and the comfortableness when annular face shield is fitted in face is better.

As preferably, the rearward end of said cup overlap joint also is fixed on the leading section of said annular face shield.Improve the bonding strength between annular face shield and the face cup.

As preferably, the faying surface of said cup and said annular face shield is provided with convexity and the pit that complements one another, and said pit covers on the said convexity.When receiving the pulling force of subtend between annular face shield and the face cup; Protruding and pit can play the effect of clasp joint, and the bonding strength between annular face shield and the face cup is good, is difficult between the two breaking away from; Can not produce to split in the junction and the phenomenon that causes anti-dust performance to descend of leaking gas produces, better reliability.

As preferably, the lap-joint of said cup and said annular face shield is provided with the overlap joint step that overlaps that complements one another.Improve the flatness of the outer surface of the utility model.

As preferably, said gas-filtering device comprises that an end opening one end is provided with the removable filter layer that the framework of air-vent, lid were established and were fixed in the frame lid that is provided with air-vent on the openend of framework and be positioned at said framework.During use, air filters through filter course, plays dustproof effect; Cooperate framework filter course to be fixed filter course difficult drop-off, good reliability through the frame lid; Filter course is dismountable; So filter course can be pulled down and change, and makes the utility model other parts except that filter course to reuse, reduce use cost.

The utlity model has following advantage, during use, air can only pass through the filter turnover, so anti-dust performance is good; The end that annular face shield is connected with user's face is designed to be connected in sequence by nose sticking part, cheekbone maxilla junction sticking part, maxilla sticking part, corners of the mouth sticking part and mandibular sticking part, has improved the comfortableness when using.

Description of drawings

Fig. 1 is the structural representation of the split state of the utility model;

Fig. 2 has made the sketch map of transparent processing for the backsight of Fig. 1 and to filter;

Fig. 3 is A-A cross-sectional schematic of Fig. 2;

Fig. 4 is the enlarged diagram at the C place of Fig. 3;

Fig. 5 is the enlarged diagram at the B place of Fig. 3;

Fig. 6 is user mode of the utility model and the sketch map of having made transparent processing.

Among the figure: face cup 1, the second overlap joint step 11, convexity 12, annular face shield 2, nose sticking part 21; The cross section 211 of the outer surface of the madial wall of nose sticking part, the rear end face 212 of nose sticking part, the cross section 213 of the outer surface of the diapire of nose sticking part, cheekbone maxilla junction sticking part 22, maxilla sticking part 23; Corners of the mouth sticking part 24, mandibular sticking part 25, the cross section 251 of the outer surface of the madial wall of mandibular sticking part, the cross section 252 of the outer surface of the diapire of mandibular sticking part, the lateral wall 26 of annular face shield; The first overlap joint step 261, the outer surface 27 of the diapire of annular face shield, the outer surface 28 of the madial wall of annular outer cover, gas-filtering device 3, framework 31; Frame air-vent 311, frame screw thread 312, frame lid 32, frame cap air-vent 321, frenulum is installed ear 322; Frame cap screw thread 323, tubular body 324, end wall 325, shirt rim 326, filter course 33; Welding is with 4, and framework and frame cover formed space 5, frenulum 6, nose 71, cheekbone 72; Maxilla 73, upper lip 74, chin 75, lower lip 76, the corners of the mouth 77.

The specific embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Referring to Fig. 1, a kind of anti-dust respirator comprises face cup 1 and annular face shield 2; The rear end of face cup 1 is the rim of a cup place end of face cup, and the front end of annular face shield 2 is docked on the rear end of face cup 1, and the front end of face cup 1 is provided with gas-filtering device 3; Gas-filtering device 3 comprises framework 31, frame lid 32 and filter course 33, and the front end of framework 31 is an opening, and the rear end of framework 31 is that the bottom surface is provided with a plurality of frame air-vents 311; Frame air-vent 311 is a square opening, the inside of frame air-vent 311 connected surface cups 1 and the inside of framework 31, and frame lid 32 comprises tubular body 324 and end wall 325; End wall 325 is provided with frame cap air-vent 321, on the edge of end wall 325, is provided with the shirt rim 326 that is looped around tubular body 324 outsides, and frame cap air-vent 321 is a circular port; Frame cap air-vent 321 is communicated with the inside of tubular body 324, and frame cap air-vent 321 is littler than frame air-vent 311, and the density of frame cap air-vent 321 is bigger than the density of frame air-vent 311; Smaller or equal to 1 square centimeter, the two area sum is more or less the same the cross-sectional area sum of frame cap air-vent 321 with the difference of the cross-sectional area sum of frame air-vent 311, and is little to the circulation influence of air turnover; Unobstructed during turnover gas, the diapire of framework 31 is designed to the version of grid hole, and is good to the support effect of filter course 33; Filter course 33 not yielding with the contact-making surface framework diapire, frame cap air-vent 321 is designed to small and dense version, can play the effect of filter just to air; Filter course 33 can directly not expose in air, before air gets into framework 31, the especially oarse-grained dust adhesion of part dust is arranged on frame lid 32; To prolong the service life of filter course 33, the dust on the frame lid 32 regularly washes and gets final product, and the front end face of end wall 325 is protruding forward spherical crown surface; It is good to be designed to the spherical crown surface security; Specious, on the left and right sides of the outer surface of shirt rim, respectively be provided with a frenulum ear 322 is installed, on the left and right sides of the inside surface of side wall of framework 31, respectively be provided with the frame screw thread 312 of a convexity; On the left and right sides of the outer surface of the sidewall of tubular body 324, respectively be provided with the frame cap screw thread 323 of a convexity; Cooperate frame cap screw thread 323 that frame lid 32 is fixed on the framework 31 through frame screw thread 312, for the connection that two threads engaged realize frame cover and frame body to be set, be provided with more than two also passable in the present embodiment; The bar number more than two and be evenly distributed on framework and the sidewall of frame lid on, then can keep better the frame lid reposefully lid be located on the framework; Annular face shield 2 adopts the silica gel quadric injection moulds to form, and is soft, comfortable, air-tightness is good; Face cup 1 adopts polycarbonate injection moulded to form, and is pellucidity, light weight, high temperature resistant.Not yielding.

Referring to Fig. 2, annular face shield 2 left-right symmetric, the rear end of annular face shield 2 is disposed with nose sticking part 21, cheekbone maxilla junction sticking part 22, maxilla sticking part 23, corners of the mouth sticking part 24 and mandibular sticking part 25 from the top down.

Referring to Fig. 3; Annular face shield 2 is the ring channel structures that rear end face is protruding backward, front end face caves in backward; Face cup 1 is connected on the lateral wall 26 of annular face shield of ring channel structures; The outer surface 27 of the diapire of annular face shield is protruding arcwall face; The outer surface 28 of the madial wall of annular outer cover is protruding arcwall face; The rear end face 212 of nose sticking part tilts towards face cup 1, and corners of the mouth sticking part 24 leaves the distance of face cup greater than the distance of nose sticking part 21 from the face cup, and corners of the mouth sticking part 24 leaves the distance of face cup greater than mandibular sticking part 25 from the distance of face cup; The bending radius of the cross section 211 of the outer surface of the madial wall of nose sticking part is greater than the bending radius of the cross section 251 of the outer surface of the madial wall of mandibular sticking part; The bending radius of the cross section 213 of the outer surface of the diapire of nose sticking part is less than the bending radius of the cross section 252 of the outer surface of the diapire of mandibular sticking part, and the arc length of the cross section 213 of the outer surface of the diapire of nose sticking part is less than the arc length of the cross section 252 of the outer surface of the diapire of mandibular sticking part, and filter course 33 is built in the tubular body 324; The side surface of filter course 33 fits tightly on the inner surface of tubular body 324, and all air could pass in and out in the face cup 1 after must filtering through filter course 33.

Referring to Fig. 4; The inner surface of the rear end of face cup 1 is provided with the second overlap joint step 11; The second overlap joint step 11 is provided with protruding 12; The outer surface of the front end of the lateral wall 26 of annular face shield is provided with the first overlap joint step, 261, the first overlap joint steps 261 and is provided with the pit that matches with protruding 12, and the pit cover is buckled on protruding 12; The width of the first overlap joint step 261 equates with the width of the second overlap joint step 11; The first overlap joint step 261 and the second overlap joint step 11 overlap fully overlappingly, and the faying surface of the first overlap joint step 261 and the second overlap joint step 11 bonds together through the method for heat fused, and the distance of the outer surface of the lateral wall 26 of the annular face shield of the first overlap joint step, 261 distances equals the thickness of the second overlap joint step 11; The second overlap joint step 11 equals the thickness of the first overlap joint step 161 apart from the distance of the inner surface of face cup 11, and the benefit that designs like this is: the surfaces externally and internally good planeness of the junction of ring-type face shield and face cup 1; On the surfaces externally and internally of the junction of lateral wall of annular face shield 26 and face cup 1, all be provided with groove;, annular face shield 2 carries out reinforcement of weld along this groove again after bonding together with face cup 1 the two heat fusing; Thereby on the surfaces externally and internally of the junction of annular face shield 2 and face cup 1, form welding and be with 4; Make that the connection between annular face shield 2 and the face cup 1 is firm more in addition, to prolong the service life of the utility model.

Referring to Fig. 5, framework 31 is structure as a whole with face cup 1, and inside, the distal process that an end of body 31 is positioned at the face cup goes out the outside with face cup 1, and the benefit that designs like this is: it is little to take up room, and is convenient to deposit; Center of gravity is less near, required when the wearing power of annular face shield, and it is better not only to wear convenience but also comfortableness; Tubular body 324 is positioned at the inside of framework 31; The rear end face of shirt rim 326 is connected on the front end face of framework 31; The equal and opposite in direction of the size of shirt rim 326 and framework 31, like this design get well for, foreign matters such as dust can not enter into framework and frame and cover in the formed space 5; Frame lid 32 causes blocking between frame lid 32 and the framework 31, so also can be unlocked when not opening for a long time like a cork.

Referring to Fig. 6; During use; Cooperating frenulum that ear 322 is installed through frenulum 6 is fixed on the utility model on user's the face; The rear end of annular face shield and user's mouth and perirhinal face fit; Be specially: nose sticking part 21 laterally stride across user's bridge of the nose bone and along bridge of the nose bone to extending below on the nose 71 that is fitted in the user; Cheekbone maxilla junction sticking part 22 terminations from nose sticking part 21 begin to be fitted on user's the facial left and right sides along the junction both sides extension to the left and right of user's cheekbone 72 and maxilla 73; Maxilla sticking part 23 begins on the maxilla 73 on the right ends that extends below the upper lip 74 that is fitted in the user from the clearing end of cheekbone maxilla junction sticking part 22; Mandibular sticking part 25 up is fitted in user's face between user's chin 75 and lower lip 76 and along user's the mouth left and right sides, corners of the mouth sticking part 24 extends and be fitted in user's facial corners of the mouth place along user's the corners of the mouth 77; Air can only advance to be in the facial enclosure space that is surrounded of annular face shield 2, face cup 1 and user through gas-filtering device 3.

Claims

1. anti-dust respirator; Comprise face cup and annular face shield; It is characterized in that an end of said cup and an end of said annular face shield are docking together, the other end of said cup is provided with gas-filtering device; The other end of said annular face shield is arranged to fit with user's mouth and perirhinal face, and the other end of said annular face shield is disposed with nose sticking part, cheekbone maxilla junction sticking part, maxilla sticking part, corners of the mouth sticking part and mandibular sticking part from the top down.

2. anti-dust respirator according to claim 1; It is characterized in that; Said annular face shield is the ring channel structures that end face protruding to the direction away from said cup away from the end face of an end of said cup, the other end caves in to the direction away from said cup, and said cup is connected on the lateral wall of said annular face shield.

3. anti-dust respirator according to claim 2; It is characterized in that; The outer surface of the diapire of said annular face shield and the outer surface of madial wall all are protruding arcwall face, and the bending radius of the cross section of the outer surface of the madial wall of said nose sticking part is greater than the bending radius of the cross section of the outer surface of the madial wall of said mandibular sticking part.

4. anti-dust respirator according to claim 3; It is characterized in that; The bending radius of the cross section of the outer surface of the diapire of said nose sticking part is less than the bending radius of the cross section of the outer surface of the diapire of said mandibular sticking part, and the arc length of the cross section of the outer surface of the diapire of said nose sticking part is less than the arc length of the cross section of the outer surface of the diapire of said mandibular sticking part.

5. according to claim 1 or 2 or 3 or 4 described anti-dust respirators, it is characterized in that the end face away from said cup one end of said nose sticking part tilts towards said cup.

6. according to claim 1 or 2 or 3 or 4 described anti-dust respirators; It is characterized in that; Said corners of the mouth sticking part leaves the distance of said cup greater than the distance of said nose sticking part from said cup, and said corners of the mouth sticking part leaves the distance of said cup greater than said mandibular sticking part from the distance of said cup.

7. according to claim 1 or 2 or 3 or 4 described anti-dust respirators, it is characterized in that the rearward end overlap joint of said cup also is fixed on the leading section of said annular face shield.

8. anti-dust respirator according to claim 7 is characterized in that, the faying surface of said cup and said annular face shield is provided with convexity and the pit that complements one another, and said pit covers on the said convexity.

9. anti-dust respirator according to claim 7 is characterized in that, the lap-joint of said cup and said annular face shield is provided with the overlap joint step that overlaps that complements one another.

10. according to claim 1 or 2 or 3 or 4 described anti-dust respirators; It is characterized in that said gas-filtering device comprises that an end opening one end is provided with the removable filter layer that the framework of air-vent, lid were established and were fixed in the frame lid that is provided with air-vent on the openend of framework and be positioned at said framework.