CN111657601A

CN111657601A - Medical antifogging mask

Info

Publication number: CN111657601A
Application number: CN202010656596.6A
Authority: CN
Inventors: 张正男; 韩涵; 周静; 段书霞; 佘开江; 殷苏明; 付迎坤; 韩修恒; 韩伟鹤; 潘洪福; 林建香; 段晓堂; 赵欣; 王蓉; 徐玉茵; 范頔; 闫钧; 高文静; 张丹丹; 陈玮雯
Original assignee: Henan Yadu Industrial Co Ltd
Current assignee: Henan Yadu Industrial Co Ltd
Priority date: 2020-07-09
Filing date: 2020-07-09
Publication date: 2020-09-15
Anticipated expiration: 2040-07-09
Also published as: CN111657601B

Abstract

The medical antifogging mask provided by the invention not only solves the problem that the filter plate can be quickly replaced without removing the mask when the mask needs to be replaced, but also can heat the glasses part to remove water vapor on the glasses under the condition of environmental temperature change, and can play a supporting role for the glasses when in use, thereby preventing the glasses from pressing the nose and causing discomfort due to long-time wearing of the glasses, and the medical antifogging mask is characterized by comprising a mask body, a breathing cavity fixedly connected on the mask body, a filtering device detachably connected at the front end of the breathing cavity and used for filtering air and quickly exhausting, elastic pull ropes respectively fixedly connected at the left end and the right end of the mask body, a glasses bearing device fixedly connected on the breathing cavity and used for supporting and demisting the glasses, and the filter plate can be quickly replaced, and can automatically detect the reverse tightness of the filtering device so as to remind when leakage occurs.

Description

Medical antifogging mask

Technical Field

The invention relates to a mask, in particular to a medical antifogging mask.

Background

The existing mask is generally composed of a mask surface and a hanging belt, when the mask is buckled at the mouth and nose, due to the protruding reason of the nose, the joint of the mask surface, the outline of the nose and the face is not tightly sealed, an air channel is formed, when glasses are worn, the channel directly guides the air exhaled by a user to the positions of glasses lenses, a large amount of water vapor is contained in the air just exhaled by the user, and the glasses can be blurred at the moment.

The doctor needs to be highly concentrated in the operation in-process attention, and the sight is always at the wound of patient, especially about the operation of heart, brain, will cause the medical accident slightly carelessly, causes irreparable injury to the patient, consequently, need design a gauze mask that absolutely laminates with human nose bridge under the condition that the doctor wears glasses and gauze mask simultaneously, and when the doctor operates, especially when operating for a long time because there is the infection risk great and medical staff is inconvenient to get rid of the gauze mask in the operating room environment.

The existing mask has the use time limit, the use time of the common mask is four hours, the situation that the impurities in the sucked air can be completely filtered only by replacing the new mask after the four hours are reached is ensured, the mask is not allowed to be removed in an operation and a high-risk environment, and then the new mask is replaced, and a device which can conveniently replace a filter sheet under the condition that the mask is not removed is needed.

The sound production principle of the whistle is that airflow flows through a narrow gap at a high speed to cause airflow turbulence and produce sound.

Disclosure of Invention

Aiming at the situation, in order to overcome the defects of the prior art, the invention provides the medical antifogging mask, which not only solves the problem that the filter sheet can be quickly replaced without removing the mask when the mask needs to be replaced, meanwhile, the temperature of the glasses can be increased under the condition of changing the environmental temperature to remove the water vapor on the glasses, and can support the glasses when in use, prevent the problem that the glasses press the nose and cause discomfort after being worn for a long time, the technical scheme for solving the problem is that the glasses-free air-filtering hood is characterized by comprising a hood body, a breathing cavity fixedly connected to the hood body, a filtering device which is detachably connected to the front end of the breathing cavity and is used for filtering air and exhausting air rapidly, elastic pull ropes respectively fixedly connected to the left end and the right end of the hood body, and a glasses bearing device which is fixedly connected to the breathing cavity and is used for lifting lenses and demisting the lenses;

the filtering device comprises a cylindrical shell detachably connected at the front end of a breathing cavity, a horizontally-arranged partition plate which extends out towards the front and divides the cylindrical shell into an upper cavity and a lower cavity is arranged in the cylindrical shell, a plurality of supporting plates are uniformly arranged in the upper cavity along the axis in a divergent manner at intervals, a partition plate is arranged in front of the lower cavity, the partition plate and the lower cavity are separated into an exhaust cavity through the partition plate, sealing elements distributed along the axis are fixedly connected on the front inner surface and the rear inner surface of the exhaust cavity, the sealing elements enable the exhaust cavity to exhaust outwards in a single direction, external air cannot enter the exhaust cavity, a plurality of lower supporting plates which are uniformly arranged at intervals and extend forwards to be flush with the front end surfaces of the supporting plates in the upper cavity are fixedly connected on the front end surface of the partition plate, and a bearing shell for bearing a filter plate is fixedly connected on, transverse sliding connection has the cassette in the bearing housing, be located bearing housing inner left end fixedly connected with limiting plate, the opening has been seted up at the limiting plate middle part, be located bearing housing inner side left end fixedly connected with stretch out right and with the tension spring of fixed connection between the cassette left end, be located bearing housing inner side before the terminal surface fixedly connected with the corresponding interior screw thread ring of cylindrical casing, form the parallel slip space that is used for the sliding connection cassette between interior screw thread ring trailing flank and the bearing housing inner side rear end face, be located bearing housing rear side and set up the intercommunicating pore that just the diameter is less than cylindrical casing diameter in cylindrical casing, be located bearing housing before the terminal surface towards the place ahead and set up the through-hole corresponding with interior screw thread ring, interior screw thread hole threaded connection has the sealing member, a.

Preferably, the filter disc includes the frame of sliding connection just in bearing the weight of the casing, and the through-hole has been seted up respectively at both ends about the frame, and equal fixedly connected with is used for carrying out filterable filter cloth to the air in the through-hole, and the filter cloth is the N95 material.

Preferably, the glasses bear the device and include left branch strut block and right branch strut block of fixed connection in respiratory cavity upper end, be located left branch strut block and right branch strut block right-hand member respectively fixedly connected with vertical axis of rotation, the damping rotation is connected with the rotation piece on the vertical axis of rotation respectively, the rotation piece stretches out the end and stretches out to both ends about respectively, the rotation piece stretches out the end and is the carrier bar, all set up the square groove that link up and transverse arrangement with the top towards the place ahead on each carrier bar, be located the outer latch that a plurality of even interval of fixedly connected with were arranged on each square groove rear end face, the cover is equipped with one end fixed connection pressure spring on the supporting shoe on the carrier bar, the cover is equipped with the piece of lifting of horizontal sliding connection on each carrier bar, a plurality of and outer latch matched with inner latch of fixedly connected with in each lifting piece, it stretches out.

Preferably, the outer surface of the upper end of the cover body is fixedly connected with a power line which is matched with the outer edge of the upper end of the outer surface of the cover body, one end of the power line is connected to the heating sheet, the other end of the power line extends backwards and is connected with a power supply, and the power line is made of an internal power-on deformable plastic material.

Preferably, the backward extending end of the electrifying wire is fixedly connected with one end of the elastic pull rope, and the other end of the elastic pull rope is fixedly connected with the lower end of the rear end face of the cover body corresponding to the upper end position of the corresponding elastic pull rope to form a closed loop.

Preferably, the cover body is made of N95 material, and the power line at the upper end of the cover body plays a supporting role so that the sealing performance is improved on the premise that the cover body is more tightly attached to the facial skin.

Preferably, the breathing cavity is completely covered on the mouth and the nose and is not in contact with the mouth and the nose, and the breathing cavity is made of hard plastic materials.

Preferably, the sealing element is of a double-layer structure and comprises a first upper one-way piece fixedly connected to the rear end face of the isolation plate, the extending end of the first upper one-way piece extends backwards and outwards, a first lower one-way piece fixedly connected to the rear side face of the inner surface of the cylindrical shell, corresponding to the first upper one-way piece, and tightly attached to the extending end of the first lower one-way piece, a second upper one-way piece fixedly connected to the rear end face of the isolation plate and located on the outer circumference of the first upper one-way piece, the extending end of the second upper one-way piece extends backwards and outwards, a second lower one-way piece fixedly connected to the rear side face of the inner surface of the cylindrical shell, corresponding to the second upper one-way piece, and tightly attached to the extending end of the second lower one-way piece.

Preferably, the upper end of the rear end face of the cover body is provided with a sponge strip which is transversely arranged.

The invention has the beneficial effects that: 1. the filter can be replaced under the condition that the mask is not taken off, so that the replacement process is safer;

2. the filter disc is convenient to replace when in use, and the replacement of the filter disc can be realized only by a knob sealing piece;

3. the filter can be recycled for many times, and can be recycled only by replacing the filter disc after being used;

4, the air in the mouth part is rapidly discharged to the outside and downwards through the filtering device, so that the exhaled air with water vapor can be effectively prevented from contacting the glasses, and the fog is generated;

5. the fog on the glasses is removed only by heating the heating plate for a short time, and the fog is prevented from condensing.

Drawings

FIG. 1 is an overall schematic view of the present invention.

FIG. 2 is a partially enlarged view of the area A of the overall schematic diagram of the present invention.

FIG. 3 is a partial enlarged view of the area B of the overall schematic of the present invention.

FIG. 4 is a second perspective view of the present invention.

FIG. 5 is a schematic view of a filtration apparatus of the present invention.

Fig. 6 is a top view of the filter assembly of the present invention.

Fig. 7 is a cross-sectional view of a filter device of the present invention.

Fig. 8 is a second perspective view of a filter assembly according to the present invention in cross-section.

Fig. 9 is a third perspective view of a filter assembly according to the present invention in cross-section.

Fig. 10 is a fourth perspective view of a filter assembly according to the present invention.

Fig. 11 is a schematic view of the glasses carrying device of the present invention.

Figure 12 is a cross-sectional view of the eyeglass carrier of the present invention.

Fig. 13 is a second perspective view of the eyeglass carrier of the present invention in cross-section.

FIG. 14 is a schematic view of a filter of the present invention.

Reference numerals

1. The mask body, 2, a breathing cavity, 3, an elastic pull rope, 4, a cylindrical shell, 5, an upper cavity, 6, a lower cavity, 7, a partition plate, 8, a support plate, 9, a partition plate, 10, an exhaust cavity, 11, a sealing piece, 12, a lower support plate, 13, a bearing shell, 14, a filter sheet, 15, a limiting plate, 16, a tension spring, 17, an internal thread ring, 18, a thread cover, 19, a vent hole, 20, a frame, 21, a filter cloth, 22, a left support block, 23, a right support block, 24, a vertical rotating shaft, 25, a rotating member, 26, a bearing rod, 27, a square groove, 28, an external latch, 29, a pressure spring, 30, a lifting block, 31, an internal latch, 32, a heating sheet, 33, a power line, 34, a power supply, 35, a first upper one-way sheet, 36, a first lower one-way sheet, 37, a second upper one-way sheet, 38, and a second lower one-way sheet, 39.

Detailed Description

The following description of the embodiments of the present invention will be made in detail with reference to the accompanying drawings 1 to 14.

The first embodiment adopts the technical scheme that the glasses frame is characterized by comprising a frame body 1, a breathing cavity 2 fixedly connected to the frame body 1, a filtering device which is detachably connected to the front end of the breathing cavity 2 and is used for filtering air and exhausting air rapidly, elastic pull ropes 3 fixedly connected to the left end and the right end of the frame body 1 respectively, and a glasses bearing device fixedly connected to the breathing cavity 2 and used for lifting and demisting lenses;

the filtering device comprises a cylindrical shell 4 detachably connected at the front end of a breathing cavity 2, a horizontally arranged partition plate 7 which extends towards the front and divides the cylindrical shell 4 into an upper cavity 5 and a lower cavity 6 is arranged in the cylindrical shell 4, a plurality of support plates 8 are uniformly arranged in the upper cavity 5 along the axis at intervals in a divergent manner, a partition plate 9 is arranged in front of the lower cavity 6, the partition plate 9 and the lower cavity 6 are separated into an exhaust cavity 10 through the partition plate 7, sealing parts 11 which are distributed along the axis are fixedly connected on the front inner surface and the rear inner surface of the exhaust cavity 10, the sealing parts 11 enable the exhaust cavity 10 to exhaust outwards in a single direction, external air cannot enter the exhaust cavity 10, a plurality of lower support plates 12 which are uniformly arranged at intervals and extend forwards to be flush with the front end surfaces of the support plates 8 in the upper cavity 5 are fixedly connected on the front end surface of the cylindrical shell 4, and a bearing shell 13 which is used for bearing a filter plate 14 is fixedly, a filter 14 is transversely connected in a sliding manner in the bearing shell 13, a limiting plate 15 is fixedly connected at the left end in the bearing shell 13, the middle part of the limiting plate 15 is provided with an opening, a tension spring 16 which extends rightwards and is fixedly connected with the left end of the filter 14 is fixedly connected at the left end of the inner side surface of the bearing shell 13, an internal thread ring 17 corresponding to the cylindrical shell 4 is fixedly connected at the front end surface of the bearing shell 13 in the bearing shell 13, a parallel sliding space for slidably connecting the filter 14 is formed between the rear side surface of the internal thread ring 17 and the rear end surface of the inner side surface of the bearing shell 13, a communication hole which is communicated with the cylindrical shell 4 and has the diameter smaller than the diameter of the cylindrical shell 4 is arranged at the rear side surface of the bearing shell 13, a through hole which is corresponding to the internal thread, a plurality of vent holes 19 are formed in the front end surface of the sealing member 11.

When the mask is used, the elastic pull rope 3 at one end is hung behind one ear, the breathing cavity 2 corresponds to the mouth-nose part of the face, the other elastic pull rope 3 is stretched and wound behind the other ear, the hand is loosened, the mask body 1 is deformed under the action of the two elastic pull ropes 3 and is attached to the face, the breathing cavity 2 completely covers the mouth-nose corresponding position, the position of the glasses bearing device is adjusted, the glasses bearing device corresponds to the glasses position and plays a role in lifting the glasses, the position of the breathing cavity 2 is adjusted, the mask is comfortable to wear, the filter 14 positioned in the bearing shell 13 in the normal state of the mask when the mask is worn is positioned at the right end, the tension spring 16 connected between the left end of the bearing shell 13 and the left end of the filter 14 is in a stretching state, and the threaded cover 18 connected with the internal thread ring 17 is in a compression state of the filter 14, simultaneously the screw thread cover 18 plays the positioning action to the cassette 14, when breathing after wearing the gauze mask, the gas that the mouth nose expired when exhaling passes through breathing chamber 2 and outwards moves, then enter into cylindrical housing 4, atmospheric pressure in cylindrical housing 4 can rise, the atmospheric pressure that rises can be discharged from two parts, partly enters into the cover body 1 through breathing chamber 2 and the space of facial contact, then through the space in the cover body 1 or through the cassette 14 discharge cover body 1 outside, another part outwards discharges under the effect of two sealing member 11 effects through the sealing member 11 that lie in the exhaust chamber 10 that bears the weight of the casing 13 one-way outside switch on.

During inhalation, the sealing member 11 in the air exhaust chamber 10 in the bearing housing 13 has a one-way conduction function, so that outside air cannot enter the air exhaust chamber 10, the action of inhalation inside the breathing chamber 2 causes the air pressure inside the breathing chamber 2 to become negative pressure, and outside air is supposed to enter from the outside and only enters the breathing chamber 2 for breathing after being filtered by the filter sheet 14 from the filter sheet 14, but not enters the breathing chamber 2 from the outside through the one-way conduction sealing member 11.

When the filtering part of the filter 14 needs to be replaced when the use reaches the time limit, the thread cover 18 is turned anticlockwise to enable the rear end of the thread cover 18 to lose the pressing effect on the filter 14, the filter 14 moves leftwards under the action of the tension spring 16, the thread cover 18 is turned clockwise again to enable the thread cover 18 to restore the pressing effect on the filter 14, the difference is that the pressing part of the thread cover 18 is the unused part of the filter 14, then air can pass through the replaced part during breathing, the filter 14 is replaced when the mask is not taken down, because the cylindrical shell 4 and the breathing cavity 2 are detachably connected, the repeated recycling can be realized only by replacing different filter 14 or different cylindrical shells 4 after the use is finished, and the exhaled air is discharged outwards from the lower end of the cylindrical shell 4 and downwards so that the gas with water vapor can not contact with glasses, thereby avoiding fogging of the glasses.

In the second embodiment, on the basis of the first embodiment, the filter sheet 14 includes a frame 20 slidably connected in the bearing housing 13, through holes are respectively formed at the left and right ends of the frame 20, filter cloths 21 for filtering air are fixedly connected in the through holes, and the filter cloths 21 are made of N95.

In the use of this embodiment, the frame 20 supports and positions the filter cloth 21, and the frame 20 is made of hard material, and can not deform when sliding left and right, and the diameter of the through hole formed on the frame 20 is larger than the diameter of the screw thread cover 18 connected to the through hole, and the outer circumference of the filter cloth 21 is sealed when the screw thread cover 18 presses the screw thread cover 18, so that the air can only pass through the filter cloth 21 in the space inside the screw thread cover 18 after being filtered.

In the third embodiment, on the basis of the first embodiment, the glasses carrying device includes a left supporting block 22 and a right supporting block 23 fixedly connected to the upper end of the breathing cavity 2, vertical rotating shafts 24 are respectively and fixedly connected to the right ends of the left supporting block 22 and the right supporting block 23, rotating members 25 are respectively and rotatably connected to the vertical rotating shafts 24 in a damping manner, the extending ends of the rotating members 25 respectively extend to the left and right ends, the extending ends of the rotating members 25 are bearing rods 26, each bearing rod 26 is provided with a square groove 27 which is through towards the front and above and is transversely arranged, the upper end of the rear end surface of each square groove 27 is fixedly connected with a plurality of outer snap teeth 28 which are uniformly and alternately arranged, the bearing rod 26 is sleeved with a pressure spring 29, one end of which is fixedly connected to the supporting block, each bearing rod 26 is sleeved with a supporting block 30 which is transversely slidably connected, a plurality of inner snap teeth 31 which are, the front and back sides of the extending end of each lifting block 30 are respectively and fixedly connected with a heating sheet 32.

In the use of the embodiment, the glasses carrying device plays a role in supporting glasses in normal use, firstly, the glasses carrying device rotates ninety degrees anticlockwise to enable the inner latch 31 in the lifting block 30 on the carrying rod 26 to be separated from the matching with the outer latch 28, the inner latch 31 can slide along the square groove 27 after rotating ninety degrees anticlockwise, the elastic force of the pressure spring 29 is needed to be overcome when the lifting block 30 slides, the elastic force of the pressure spring 29 is not needed when the lifting block 30 moves outwards, the lifting block 30 rotates ninety degrees in the opposite direction after the lifting block 30 moves to a proper position to enable the inner latch 31 in the lifting block 30 to be matched with the outer latch 28 at a corresponding position, the elastic force of the pressure spring 29 plays a role in pushing and positioning the lifting block 30, and the heating piece 32 on the lifting block 30 is started when the external air is higher than the temperature of the glasses lenses, the temperature of the glasses is increased under the action of the heating sheet 32, so that condensed water cannot be generated on the lenses, or the temperature of the glasses is increased when condensed mist exists on the glasses, so that the condensed mist on the glasses is evaporated to complete the defogging effect.

In the fourth embodiment, on the basis of the third embodiment, the outer surface of the upper end of the cover 1 is fixedly connected with an electrifying wire 33 which is matched with the outer edge of the upper end of the outer surface of the cover 1, one end of the electrifying wire 33 is connected to the heating sheet 32, the other end of the heating sheet extends backwards and is connected with a power supply 34, and the electrifying wire 33 is made of a deformable plastic material which is internally electrified.

This embodiment is when using, circular telegram line 33 can not only play the effect of circular telegram when using and also can play the effect of laminating more to the face simultaneously, and owing to be located the air purification device in 2 the place ahead of respiratory cavity even all adopt light material to make its weight also can be greater than the pulling force that elasticity pulled the rope, and only pull the rope through elasticity and hang and make elasticity pulled the rope and be elongated on the ear, and the plastic deformation through circular telegram line 33 makes circular telegram line 33 hang and plays the supporting role on the ear, can prevent effectively that respiratory cavity 2 from breaking away from the oronasal part and make sealed effect not good.

In the fifth embodiment, on the basis of the fourth embodiment, the backward extending end of the electrifying wire 33 is fixedly connected with one end of the elastic pulling rope, and the other end of the elastic pulling rope is fixedly connected with the lower end of the back end face of the cover body 1 corresponding to the upper end position of the corresponding elastic pulling rope to form a closed loop.

When the mask is used, the elastic pull rope plays a role in tensioning when being hung on ears, so that the mask body 1 after being worn is always attached to the face.

Sixth, on the basis of the third embodiment, the cover 1 is made of N95, and the power line 33 located at the upper end of the cover 1 plays a supporting role so as to improve the sealing performance on the premise that the cover 1 is closer to the facial skin.

In use, this example is one of 9 NIOSH certified particulate prevention masks, model N95. "N" means particles not suitable for oiliness; "95" means that under the detection conditions specified by the NIOSH standard, the filtration efficiency reaches 95%, the electrified wire 33 is bent to conform to the shape of the face of an individual when the mask is worn, and a gap is not easily formed between the mask body 1 and the face during wearing, so that the sealing effect is better.

Seventh, on the basis of the first embodiment, the breathing cavity 2 completely covers the mouth and nose without contacting with the mouth and nose, and the breathing cavity 2 is made of hard plastic.

This embodiment is when using, and respiratory cavity 2 is for not making with the hard material that the contact of mouth and nose was arranged, can effectively play the supporting role to air filter and to the bearing effect of glasses load-bearing device, can not oppress mouth nose position with power simultaneously, but with all positions that the cover body 1 and face contacted of power dispersion for the lifting surface area increase and the unit area atress reduces.

Eighth embodiment, on the basis of the first embodiment, the sealing member 11 is a double-layer structure, and includes a first upper one-way piece 35 fixedly connected to the rear end surface of the partition plate 9, an extended end of the first upper one-way piece 35 is extended backward and outward, a first lower one-way piece 36 fixedly connected to the rear side surface of the inner surface of the cylindrical shell 4, corresponding to the first upper one-way piece 35, and tightly attached between the extended ends, a second upper one-way piece 37 fixedly connected to the rear end surface of the partition plate 9 and located at the outer circumference of the first upper one-way piece 35, an extended end of the second upper one-way piece 37 is extended backward and outward, a second lower one-way piece 38 fixedly connected to the rear side surface of the inner surface of the cylindrical shell 4, corresponding to the second upper one-way piece 37, and tightly attached between the extended ends, and an isolation space is formed between the first one-.

When the air-breathing respirator is used, each one-way sheet is made of flexible materials, the two matched one-way sheets are tightly attached to each other when the air-breathing respirator is used, air located in the air moves outwards under the action of the first upper one-way sheet 35 and the first lower one-way sheet 36 when the air-breathing respirator is used, the air enters the space between the first one-way sheet and the second one-way sheet and then continues to move outwards, the air passes through the space between the second upper one-way sheet 37 and the second lower one-way sheet 38 and then is discharged outwards, negative pressure is formed in the space formed by the first upper one-way sheet 35 and the first lower one-way sheet 36 when the air-breathing respirator is used, the air located in the space formed between the first one-way sheet and the second one-way sheet presses the two first one-way sheets, but the air volume is better because each one-way sheet extends outwards and the tail end of each one-way sheet is in contact, the air moving from the outside can extrude the two one-way sheets, the sealing effect is better, and the air volume is Can enter into the space that first one-way piece constitutes, the air in the space of outside simultaneously wants to enter into the one-way effect that switches on that needs the one-way piece of customer service second to constitute in the isolation space, thereby make outside air can not enter into the breathing chamber 2 under dual function, simultaneously owing to outwards switch on and stretch out the end between two one-way pieces and contact through the one-way piece when exhausting, if the condition that has gas leakage can lead to the air current disorder of inhaling and make sound when breathing in, can follow the sound production and assist the judgement whether gas leakage, in time change when having gas leakage.

Ninth, on the basis of the first embodiment, the upper end of the rear end surface of the cover body 1 is provided with a sponge strip 39 which is transversely arranged.

This embodiment is when using, the sponge strip 39 of the transversal arrangement who is equipped with on the cover body 1 rear end face can further seal the space of cover body 1 inside when using, and want to carry out the filtration that gas circulation needs pass through sponge strip 39 through the space that cover body 1 and facial contact position formed, thereby make the filter effect better, the filtration that simultaneously can make through sponge strip 39 can make the vapor in the air that passes through adsorb on sponge strip 39, make not contain moisture in the expired air, thereby make the air that leaks from cover body 1 and facial contact position even contact glasses can not condense into the water smoke yet.

Claims

1. The medical antifogging mask is characterized by comprising a mask body (1), a breathing cavity (2) fixedly connected to the mask body (1), a filtering device which is detachably connected to the front end of the breathing cavity (2) and is used for filtering air and exhausting air rapidly, elastic pull ropes (3) fixedly connected to the left end and the right end of the mask body (1) respectively, and a glasses bearing device fixedly connected to the breathing cavity (2) and used for lifting lenses and demisting the lenses;

filter equipment is including dismantling cylindrical shell (4) of connection at breathing cavity (2) front end, cylindrical shell (4) inside is equipped with and stretches out and divide into cylindrical shell (4) division board (7) that the level of cavity (5) and cavity (6) down arranged towards the place ahead, it has a plurality of backup pads (8) to be the even interval arrangement of form of dispersing along the axis in cavity (5) to go up, cavity (6) the place ahead is equipped with division board (9) down, it is exhaust chamber (10) to keep apart through division board (7) between division board (9) and the cavity (6) down, equal fixedly connected with along axis distribution's sealing member (11) on two internal surfaces around exhaust chamber (10), sealing member (11) make exhaust chamber (10) one-way outside exhaust and outside air can not enter into inside exhaust chamber (10), fixedly connected with on division board (9) preceding terminal surface a plurality of even interval arrangements and stretch out forward with backup pad (8) in last cavity (5) between the preceding terminal surface between before the terminal surface Parallel lower supporting plate (12), fixedly connected with bears casing (13) that is used for bearing filter disc (14) on the terminal surface before cylindrical housing (4), transverse sliding connection has filter disc (14) in bearing casing (13), left end fixedly connected with limiting plate (15) in being located bearing casing (13), the opening has been seted up at limiting plate (15) middle part, be located bearing casing (13) medial surface left end fixedly connected with stretch out right and with filter disc (14) left end between fixed connection's extension spring (16), be located bearing casing (13) on the terminal surface before bearing casing (13) fixedly connected with and cylindrical housing (4) corresponding internal thread ring (17), form the parallel sliding space that is used for sliding connection filter disc (14) between internal thread ring (17) trailing flank and the bearing casing (13) medial surface rear end face, be located bearing casing (13) on the trailing flank seted up the UNICOM to cylindrical housing (4) in and the diameter be less than cylindrical housing (13: (13) 4) The diameter communication hole is positioned on the front end surface of the bearing shell (13) and is provided with a through hole facing forwards, the through hole corresponds to the internal thread ring (17), the internal thread hole is in threaded connection with a thread cover (18), and the front end surface of the thread cover (18) is provided with a plurality of air holes (19).

2. The medical antifog mask of claim 1, wherein the filter (14) comprises a frame (20) slidably connected in the bearing shell (13), through holes are respectively formed at the left end and the right end of the frame (20), filter cloths (21) used for filtering air are fixedly connected in the through holes, and the filter cloths (21) are made of N95.

3. The medical antifogging mask according to claim 1, wherein the glasses carrying device comprises a left supporting block (22) and a right supporting block (23) fixedly connected to the upper end of the breathing cavity (2), a vertical rotating shaft (24) is fixedly connected to the right ends of the left supporting block (22) and the right supporting block (23), a rotating member (25) is rotatably connected to the vertical rotating shaft (24) in a damping manner, respectively, the extending end of the rotating member (25) extends to the left end and the right end, the extending end of the rotating member (25) is a carrying rod (26), each carrying rod (26) is provided with a square groove (27) which is through from the front to the top and is transversely arranged, a plurality of outer latches (28) are fixedly connected to the upper end of the rear end face of each square groove (27) at regular intervals, and a pressure spring (29) with one end fixedly connected to the supporting block is sleeved on, each bearing rod (26) is sleeved with a lifting block (30) which is connected in a transverse sliding mode, a plurality of inner clamping teeth (31) which are matched with the outer clamping teeth (28) are fixedly connected in each lifting block (30), and heating pieces (32) are fixedly connected to the front side face and the rear side face of the extending end of each lifting block (30) respectively.

4. The medical antifogging mask according to claim 3, wherein an electrifying wire (33) is fixedly connected to the outer surface of the upper end of the outer surface of the mask body (1) and is matched with the outer edge of the upper end of the outer surface of the mask body (1), one end of the electrifying wire (33) is connected to the heating sheet (32), the other end of the electrifying wire extends backwards and is connected to the power supply (34), and the electrifying wire (33) is made of a deformable plastic material with electricity supplied inside.

5. The medical antifog mask according to claim 4, wherein the rearward extending end of the energizing wire (33) is fixedly connected with one end of the elastic pulling rope, and the other end of the elastic pulling rope is fixedly connected with the lower end of the rear end face of the mask body (1) corresponding to the upper end position of the corresponding elastic pulling rope to form a closed loop.

6. The medical antifogging mask of claim 3, wherein the mask body (1) is made of N95 material, and the live wire (33) at the upper end of the mask body (1) plays a supporting role to improve the sealing performance on the premise that the mask body (1) is closer to the facial skin.

7. The medical antifog mask according to claim 1, wherein the breathing cavity (2) is shaped to completely cover the mouth and nose without contacting with the mouth and nose, and the breathing cavity (2) is made of rigid plastic.

8. The medical anti-fog mask according to claim 1, wherein the sealing member (11) has a double-layered structure including a first upper one-way piece (35) fixedly attached to the rear end surface of the partition plate (9), a first lower one-way piece (36) fixedly attached to the rear side surface of the inner surface of the cylindrical shell (4) corresponding to the first upper one-way piece (35) and closely attached between the protruding ends, a second upper one-way piece (37) fixedly attached to the rear end surface of the partition plate (9) and located at the outer circumference of the first upper one-way piece (35), a second upper one-way piece (37) fixedly attached to the rear side surface of the inner surface of the cylindrical shell (4) corresponding to the second upper one-way piece (37) and closely attached between the protruding ends, an isolation space is formed between the first unidirectional sheet and the second unidirectional sheet.

9. The medical antifogging mask according to claim 1, characterized in that the upper end of the back end face of the mask body (1) is provided with a sponge strip (39) arranged transversely.