CN111529981B

CN111529981B - Disposable electric air filtering respirator

Info

Publication number: CN111529981B
Application number: CN202010351823.4A
Authority: CN
Inventors: 不公告发明人
Original assignee: Shanghai Yidun Medical Technology Co ltd
Current assignee: Shanghai Yidun Medical Technology Co ltd
Priority date: 2020-04-28
Filing date: 2020-04-28
Publication date: 2022-01-28
Anticipated expiration: 2040-04-28
Also published as: CN111529981A

Abstract

The invention relates to the technical field of medical and health protection, and discloses a disposable electric air filtering respirator, which comprises a filter and a face mask communicated with the filter; an air guide mechanism is arranged in the filter; the air guide mechanism comprises a fan and a storage battery pack electrically connected with the fan, and a noise reduction structure communicated with the mask is installed on the fan. The respirator has the advantages of simple structure, convenience for medical personnel to use, low cost, direct recovery after use, no need of secondary use and reduction of the danger of secondary use of the respirator.

Description

Disposable electric air filtering respirator

Technical Field

The invention relates to the technical field of medical and health protection, in particular to a disposable electric air filtering respirator.

Background

Social industrialization and urbanization progress make the haze comparatively general to and the emergence of the urgent infectious diseases of society, just need take safeguard procedures to the face this moment, facial safeguard procedure mainly goes on with modes such as wearing gauze mask, keeps apart the pollutant of granule more than PM2.5 and the droplet that other people carried the germ through the gauze mask, and at present, keeps apart the best gauze mask product of effect and is N95 type gauze mask.

The N95 type mask can isolate smaller particles, the filtering efficiency of the N95 type mask on particles with the aerodynamic diameter of 0.075 μm +/-0.02 μm reaches over 95%, the aerodynamic diameter of air bacteria and fungal spores changes between 0.7-10 μm, the air bacteria and fungal spores are also in the protection range of the N95 type mask, the N95 type mask is tightly attached to the face and is not easy to leak air from the periphery, however, the N95 type mask is easy to breathe difficultly by a user due to good isolation performance after being worn for a long time, and even can generate dizziness due to oxygen deficiency, and particularly for the old and children with weak physique, the face protection device can protect the face of the user and can breathe smoothly.

Existing face protection devices include breathing masks and ventilators that filter air, such as: ventilators manufactured by honeywell, scott technologies and 3M innovations ltd have common features: the production cost is higher, can't disposable, and breathing machine when secondary use, need disinfect the back and use again, but carries out secondary pollution to the face guard easily when disinfecting, has reduced the security of using the face guard.

Disclosure of Invention

The invention aims to provide a disposable electric air filtering respirator, which is convenient for a user to breathe, reduces the manufacturing cost and achieves the aim of disposable use.

In order to realize the purpose, the invention provides the following technical scheme: a disposable electric air filtering respirator comprises a filter and a mask communicated with the filter; an air guide mechanism is arranged in the filter; the air guide mechanism comprises a fan and a storage battery pack electrically connected with the fan, and a noise reduction structure communicated with the mask is installed on the fan.

The principle and the beneficial effects of the invention are as follows:

(1) in this scheme, filter, face guard, fan, the mechanism of making an uproar all can disposable, on the basis of guaranteeing the breathing machine security, guarantee the leakproofness of breathing machine, can directly carry out recovery processing and destroy easily with this breathing machine after the breathing machine has used, reach the purpose of environmental protection. Meanwhile, the secondary use of the breathing machine after the sterilization can be avoided, and the harm caused by the secondary use of the breathing machine is reduced.

(2) On the basis of ensuring the performance of the fan, the air sucked into the outside through the filter is sent into the mask, so that medical personnel can use the mask, the problem that the existing N95 type mask causes breathing difficulty is solved, the medical personnel can breathe smoothly, and the purpose of isolating viruses is achieved.

(3) The noise that this scheme considered that the fan during operation brought may influence medical staff's normal work or life, falls the noise through falling the structure of making an uproar to the fan.

(4) For medical personnel, the working time in a virus environment is generally longer, power is supplied through the storage battery pack, the working time of the fan is prolonged, and the continuous working of the medical personnel is facilitated.

Further, the noise reduction structure comprises a shell and noise reduction cotton positioned in the shell.

Has the advantages that: adopt the shell to wrap up the cotton of making an uproar that falls, guaranteed that the cotton of making an uproar falls the fan and makes an uproar, also guaranteed simultaneously that the air after filtering enters into the face guard smoothly.

Further, the shell is communicated with an air pipe.

Has the advantages that: the connecting pipe can make the face mask far away from the fan, further reducing the influence of the noise of the fan on medical staff.

Further, a sealing structure is arranged between the shell and the fan.

Has the advantages that: the gap between the noise reduction structure and the fan is sealed through the sealing mechanism, so that the transmission of noise generated by the fan is reduced on the one hand, the air tightness is ensured on the other hand, and the phenomenon that external unfiltered air enters the face mask through the gap between the noise reduction structure and the fan is avoided.

And the controller is electrically connected with the fan, the sensor acquires air pressure information in the mask, and the controller acquires the air pressure information to control the working power of the fan.

Has the advantages that: wind pressure within several masks is too high or too low for the user to use, for example: the volume of old man and child's breathing air is few, leads to the wind pressure too big easily, and adult and the people that is in operating condition breathe a volume greatly, lead to the wind pressure undersize easily. The sensor acquires the wind pressure information in the face guard to the sensor sends wind pressure information to the controller, and the controller can control the fan and change power, if the wind pressure is too big, fan power reduces, if the wind pressure undersize, fan power increases.

Furthermore, the storage battery pack comprises a plurality of storage batteries, a switch control module is electrically connected between the storage battery pack and the fan, and the switch control module controls the opening and closing of the fan.

Has the advantages that: the on-off control module is used for controlling the on-off of the fan, the electric quantity of the storage battery pack is guaranteed through the storage batteries, and therefore the working time of the fan is guaranteed to be long enough.

Furthermore, the storage battery pack is electrically connected with a detection module, and the detection module detects the electric storage capacity of the storage battery pack.

Has the advantages that: if the fan is out of work, the medical staff is easy to breathe difficultly in the mask, the electric quantity of the storage battery pack is detected through the detection module, and the problem that the storage battery pack is not enough to be lightened is solved.

Further, the detection module comprises a plurality of LED lamps.

Has the advantages that: after the detection module detects the electric quantity of the storage battery pack, the electric quantity can be displayed through the LED lamp, so that the condition that medical personnel visually observe the electric quantity of the storage battery pack is avoided.

Further, the face mask comprises a visual plate and a cushion layer, and the cushion layer is fixedly connected with the visual plate.

Has the advantages that: through bed course and medical personnel's facial contact, more laminating can hinder outside not by in the filterable air admission face guard, improves the sealing performance of face guard. The viewing plate is made of glass or other transparent material to facilitate medical personnel to view the exterior of the mask.

Further, a fixing ring is installed on the visual plate.

Has the advantages that: the fixing rope is arranged on the fixing ring, and the mask can be conveniently fixed on the head or other parts of medical personnel through the fixing rope, so that the use stability of the mask is ensured.

Drawings

FIG. 1 is an isometric view of a disposable electric air filtration ventilator according to a first embodiment of the present invention;

FIG. 2 is a front view of a disposable electric air filtration ventilator in accordance with one embodiment of the present invention;

FIG. 3 is a side view of a disposable electric air filtration respirator filter in accordance with one embodiment of the present invention;

FIG. 4 is a sectional view taken along line F-F of FIG. 2;

FIG. 5 is a schematic view of a disposable electric air filtration ventilator according to a second embodiment of the present invention;

fig. 6 is a schematic diagram of a noise reduction structure in the third embodiment of the present invention.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the noise reduction mask comprises a mask 1, a cushion layer 11, a visible plate 12, a fixing ring 13, an air pipe 2, a noise reduction structure 3, a shell 31, noise reduction cotton 32, a sealing ring 4, a filter plate 5, a machine shell 61, a fan 62, a control switch 71, a PCB (printed circuit board) 72, an LED (light emitting diode) lamp 73, a storage battery 8, an air outlet pipe 33, sound absorption cotton 34, a first sound absorption plate 35, a flow guide channel 36, a fixing plate 37, a vertical hole 38, a through hole 39, a flow guide plate 40, an air hole 41, a return pipe 42 and a one-way valve 43.

The first embodiment is as follows:

referring to fig. 1, 2 and 3, a disposable electric air filtering respirator comprises a filter and an air guide structure arranged in the filter, as shown in fig. 4, the filter is a filter plate 5, the filter plate 5 meets the N95 standard, and the longitudinal section of the filter plate 5 is rectangular in the embodiment.

The air guide structure comprises a fan 62, a casing 61 and a battery pack 8 (not shown in the figure), wherein the fan 62 in the embodiment has the following types: 4028 fan, fan 62 is fixed in the casing 61 by bolts, the casing 61 is connected with the filter plate 5, the fan 62 is connected with the noise reduction structure 3, the noise reduction structure 3 comprises noise reduction cotton 32 and the casing 31, the noise reduction cotton 32 is bonded in the casing 31. In order to improve the sealing performance of the fan 62, a sealing ring 4 is sleeved between the casing 31 and the casing 61, wherein the sealing ring 4 is made of rubber in the embodiment. The fan 62 is electrically connected to the battery packs 8 through electrical leads, the battery packs 8 are 3 or 4, preferably 4 in the present embodiment, and each battery pack 8 is composed of 8 dry cell batteries. The parallel connection of the battery packs 8 can provide 12V voltage to drive the fan 62 to work, and a control power switch (not shown in the figure) is electrically connected between the battery packs 8 and the fan 62.

The housing 31 is communicated with the air pipe 2, the air pipe 2 is fixed on the housing 31 through bolts, and a sealing ring 4 (not shown in the figure) is also arranged between the housing 31 and the air pipe 2. Trachea 2 intercommunication has face guard 1, face guard 1 includes visual board 12 and bed course 11 in this embodiment, visual board 12 is made by glass material or transparent plastic material, the lower part bolted fixation of visual board 12 has the breather valve, the breather valve is the check valve, the gas of medical staff's exhalation flows out 1 outsides to the face guard through the check valve, the upper portion bolted fixation of visual board 12 has solid fixed ring 13, gu fixed ring 13 goes up the cover and is equipped with fixed rope, fixed rope is made by elastic material, bed course 11 is made by flexible material, bed course 11 bolt fastening is in visual board 12. Of course, in this embodiment, the air pipe 2 may not be used for communication, and only the noise reduction structure 3 needs to be fixedly mounted on the visible plate 12 by bolts, so as to avoid the air pipe 2 from breaking.

The specific implementation process is as follows:

first, the mask 1 is worn on the face of the medical staff by the fitting of the fixing string and the fixing ring 13, and the cushion layer 11 is fitted to the face of the medical staff so that the mask 1 is sealed.

Secondly, the control power switch is turned on, the storage battery pack 8 supplies power to the fan 62, the fan 62 overcomes the resistance of the filter plate 5 and sucks air into the shell 61, the air is filtered by the filter plate 5 and then sent into the shell 61, then the air is sent into the air pipe 2 through the shell 31 and finally reaches the face mask 1, and the air exhaled by medical staff is discharged from the breather valve.

At fan 62 during operation, fan 62 can produce certain noise, reduce the noise that fan 62 produced through falling the cotton 32 of making an uproar, and then avoid the influence that fan 62 noise produced medical staff, and fan 62 and fall and be provided with the sealing washer 4 of sealed clearance between the two between the structure 3 of making an uproar, it is sealed through sealing washer 4, avoided the noise to transmit away from the clearance between fan 62 and the structure 3 of making an uproar, further improve the noise reduction effect, reached sealed effect simultaneously.

Finally, the cost of the structure is between 120 and 150 yuan, and compared with other breathing machines, the cost is lower, and the disposable electric air filtering breathing machine in the scheme can be directly recycled after being used in a high-virus-pollution environment, so that secondary use is not needed, and further the harm caused by secondary use is avoided. Compared with the traditional breathing machine, the breathing machine in the embodiment has the advantages of lower cost and high disposable safety.

Example two:

the difference between the second embodiment and the first embodiment is that, as shown in fig. 5, the storage battery 8 is electrically connected to a PCB 72, the PCB 72 is electrically connected to a switch control module, the switch control module in this embodiment is a control switch 71, the PCB 72 is electrically connected to a detection module, the detection module is an IC chip, and the IC chip is electrically connected to a plurality of LED lamps 73.

The fan 62 is electrically connected with a controller, the controller in this embodiment is a single chip microcomputer, the controller is electrically connected with a sensor located in the visual panel 12, the model of the sensor in this embodiment is: a BOSCH BMP280 air pressure sensor.

The specific implementation process is as follows:

the sensor acquires the wind pressure information in the face mask 1, the sensor transmits the wind pressure information to the controller, the controller acquires the wind pressure information and judges the wind pressure information, and if the wind pressure is too small, the controller controls the working power of the fan 62 to be increased, so that the air intake of the face mask 1 is increased; if the wind pressure is too large, the controller controls the working power of the fan 62 to be reduced, so that the air intake in the face mask 1 is reduced.

Through the wind pressure detection in the face guard 1, the air quantity in the face guard 1 can be avoided being too much or too little so as to adapt to different working states of medical staff, and the medical staff are more comfortable.

In the long-term use process of the fan 62, the electric quantity of the battery pack 8 gradually decreases, even the electric quantity of the battery pack 8 is insufficient, the fan 62 cannot work, and at this time, the battery pack 8 needs to be replaced. The detection module acquires the electric quantity information of the storage battery pack 8 and displays the electric quantity information through the LED lamps 73, and if the electric quantity of the storage battery pack 8 is sufficient, all the LED lamps 73 are turned on; when the amount of electricity in the battery pack 8 gradually decreases, the number of the LED lamps 73 turned on decreases. Through the above manner, medical staff can judge the electric quantity of the storage battery pack 8 through the number of the LED lamps 73, and can replace the storage battery pack 8 in time.

Example three:

the third embodiment is different from the first embodiment in that, as shown in fig. 6, the noise reduction structure 3 includes a housing 31, a left end of the housing 31 is open, and a right end of the housing 31 is communicated with an air outlet pipe 33; the left end of the housing 31 is connected to the fan by a bolt.

Be provided with the one-level on shell 31's the inner wall and fall the layer of making an uproar, the one-level falls the layer of making an uproar including inhaling cotton 34 and first abatvoix 35, and inhales cotton 34 and first abatvoix 35 and set gradually to shell 31 inner wall direction by shell 31 outer wall, inhales the inner wall bonding of sound cotton 34 and shell 31, first abatvoix 35 with inhale the bonding of sound cotton 34, and the both ends of first abatvoix 35 are passed through the bolt fastening and are on shell 31's inner wall. The first acoustic board 35 is symmetrically provided with a flow guide structure along the center line of the housing 31 for guiding the gas to the primary noise reduction layer, the flow guide structure is a flow guide channel 36 formed in the first acoustic board 35, and the flow guide channel 36 is wavy.

Still include with the communicating second grade of water conservancy diversion structure and fall the layer of making an uproar, the second grade falls the layer of making an uproar and includes fixed plate 37 and fall the cotton 32 of making an uproar, and fixed plate 37 passes through the bolt fastening on first abatvoix 35, falls the cotton 32 of making an uproar and bonds on the right side wall of fixed plate 37. A vertical hole 38 is vertically formed in the fixed plate 37, and the vertical hole 38 is communicated with the right end of the flow guide channel 36; the right side wall of the fixing plate 37 is provided with a plurality of through holes 39 communicated with the vertical holes 38, and the through holes 39 are arranged towards the direction of the noise reduction cotton 32. Two guide plates 40 are fixed on the right side wall of the fixing plate 37 through bolts, the guide plates 40 are connected with the first sound absorbing plate 35 through bolts, and the two guide plates 40 are symmetrically arranged with the transverse center line of the fixing plate 37; the air guide plate 40 is provided with a plurality of air holes 41. The guide plate 40, the fixing plate 37 and the first sound-absorbing plate 35 form a triangular structure, and the stability of the whole structure can be improved according to the stability of the triangle.

The first sound absorption plate 35 is provided with a return pipe 42, the left end of the return pipe 42 is communicated with the flow guide channel 36, the right end of the return pipe 42 is positioned between the noise reduction cotton 32 and the flow guide plate 40, and the return pipe 42 is fixedly connected with a one-way valve 43 for one-way gas flow to the flow guide channel 36.

The specific implementation process is as follows:

wrapping the left end of the shell 31 with a fan, and connecting the shell 31 with the fan through a bolt; the outlet pipe 33 is communicated with the breathing mask 1.

The fan is started, the fan generates air flow, the fan works to generate noise, and the air is spread as a noise medium. In gaseous entering shell 31, reentrant water conservancy diversion passageway 36, noise reduction treatment is carried out to the noise through inhaling sound cotton 34 and first abatvoix 35 to, because water conservancy diversion passageway 36 is wavy, it is long when having prolonged gaseous flow, and then has strengthened the noise reduction effect.

The gas enters the vertical hole 38 through the flow guide channel 36, then passes through the through hole 39 from the vertical hole 38 to act on the noise reduction cotton 32, and noise is reduced again through the noise reduction cotton 32; and, the intensity of the noise is also weakened by the gas in the flow paths of the vertical holes 38 and the through holes 39.

The gas passes through the noise reduction cotton 32 to continue flowing, and a part of the gas moves towards the direction of the return pipe 42 under the guiding action of the guide plate 40, so that the gas enters the flow guide channel 36 again through the return pipe 42, the flow path of the gas is further prolonged, namely, the noise reduction process is repeated, noise is reduced again through the sound absorption cotton 34, the first sound absorption plate 35 and the noise reduction cotton 32, and the noise reduction effect is enhanced; the other part of the gas flows towards the gas outlet pipe 33 through the gas hole 41; the gas after multiple noise reduction treatment enters the breathing mask 1 through the air outlet pipe 33 so as to be breathed by a user, and the noise is greatly reduced. In addition, the cost of the scheme is controlled to be between 50 and 100 yuan, and compared with other noise reduction equipment, the scheme is lower in cost and higher in practicability; the scheme can be used as a disposable product in a high virus pollution environment, and after the disposable product is used, the disposable product can be directly disassembled and recycled without using secondary, so that the harm caused by secondary utilization is avoided.

The above is only a preferred embodiment of the invention, and it should be noted that, for those skilled in the art, it is possible to make several changes and modifications without departing from the inventive concept, and these should also be considered as the protection scope of the invention, which will not affect the effect of the implementation of the invention and the practicability of the patent. The techniques, shapes, and structural parts, which are omitted from the description of the present invention, are all known techniques.

Claims

1. A disposable electric air filtering respirator is characterized by comprising a filter and a mask communicated with the filter; an air guide mechanism is arranged in the filter; the air guide mechanism comprises a fan and a storage battery pack electrically connected with the fan, a noise reduction structure communicated with the mask is mounted on the fan, and the noise reduction structure comprises a shell and noise reduction cotton positioned in the shell;

the shell is communicated with an air pipe, the mask comprises a visual plate and a cushion layer, the cushion layer is fixedly connected with the visual plate, the air pipe is fixedly connected with the visual plate of the mask, the respirator is covered on the back of the face, and the air pipe is close to the mouth of a human body; the air pipe is in a broken line shape, and one section of the air pipe connected with the visual plate is inclined upwards;

the left end of the shell of the noise reduction structure is provided with an opening, and the right end of the shell is communicated with an air outlet pipe; the left end of the shell is connected with the air guide mechanism through a bolt;

the inner wall of the shell is provided with a primary noise reduction layer, the primary noise reduction layer comprises sound absorption cotton and a first sound absorption plate, the sound absorption cotton and the first sound absorption plate are sequentially arranged from the outer wall of the shell to the direction of the inner wall of the shell, the sound absorption cotton is bonded with the inner wall of the shell, the first sound absorption plate is bonded with the sound absorption cotton, and two ends of the first sound absorption plate are fixed on the inner wall of the shell through bolts; the first sound absorption plate is symmetrically provided with a flow guide structure used for guiding gas to the primary noise reduction layer along the center line of the shell, and the flow guide structure is a flow guide channel arranged on the first sound absorption plate;

the second-level noise reduction layer comprises a fixing plate, the fixing plate is fixed on the first sound absorption plate through bolts, and noise reduction cotton is bonded on the right side wall of the fixing plate; a vertical hole is vertically formed in the fixed plate and communicated with the right end of the flow guide channel; a plurality of through holes communicated with the vertical holes are formed in the right side wall of the fixing plate, and the through holes are arranged towards the direction of the noise reduction cotton; two guide plates are fixed on the right side wall of the fixing plate through bolts, the guide plates are connected with the first sound absorption plate through bolts, and the two guide plates are symmetrically arranged on the transverse center line of the fixing plate; the guide plate is provided with a plurality of air holes; a triangular structure is formed by the guide plate, the fixing plate and the first sound-absorbing plate;

the first sound absorption plate is provided with a return pipe, the left end of the return pipe is communicated with the flow guide channel, the right end of the return pipe is positioned between the noise reduction cotton and the flow guide plate, and the return pipe is fixedly connected with a one-way valve used for gas to flow to the flow guide channel.

2. The disposable electric air filtration ventilator of claim 1, wherein: and a sealing structure is arranged between the shell and the fan.

3. The disposable electric air filtration ventilator of claim 2, wherein: the air pressure control device is characterized by further comprising a sensor and a controller, wherein the controller is electrically connected with the fan, the sensor acquires air pressure information in the face shield, and the controller acquires the air pressure information to control the working power of the fan.

4. The disposable electric air filtration ventilator of claim 1, wherein: the storage battery pack comprises a plurality of storage batteries, a switch control module is electrically connected between the storage battery pack and the fan, and the switch control module controls the opening and closing of the fan.

5. The disposable electric air filtration ventilator of claim 4 wherein: the storage battery pack is electrically connected with a detection module, and the detection module detects the electric storage capacity of the storage battery pack.

6. The disposable electric air filtration ventilator of claim 5 wherein: the detection module comprises a plurality of LED lamps.

7. The disposable electric air filtration ventilator of claim 1, wherein: the visual plate is provided with a fixing ring.