CN113332624A

CN113332624A - Intelligent breathing filtering device

Info

Publication number: CN113332624A
Application number: CN202110769552.9A
Authority: CN
Inventors: 韩利娜; 张静
Original assignee: First Affiliated Hospital of Henan University of Science and Technology
Current assignee: First Affiliated Hospital of Henan University of Science and Technology
Priority date: 2021-07-07
Filing date: 2021-07-07
Publication date: 2021-09-03
Anticipated expiration: 2041-07-07
Also published as: CN113332624B

Abstract

The invention discloses an intelligent breathing filtering device, and belongs to the technical field of medical protective equipment. This filter equipment is breathed to intelligence includes: the mask is tightly attached to the face of a user and is provided with an air inlet and an air outlet; the air purification mechanism is communicated with the air inlet of the mask; the exhaust mechanism comprises a valve seat, an annular pressure sensor, a valve core, a valve plug, a vent pipe and a valve cover, wherein the valve seat is connected to the exhaust port of the mask, the valve seat is provided with a step through hole, the valve core is provided with a tapered hole, the vent pipe is provided with a special-shaped hole, a gap is reserved between the special-shaped hole and the side wall of the valve plug, and a spring is further arranged in the special-shaped hole; and the controller is internally provided with a preset pressure value, and when the real-time pressure value is higher than the preset pressure value. The intelligent breathing filter device not only can provide clean air for a user, but also can ensure the air pressure inside and outside the mask to be consistent through active air supply, so that the user does not feel hard when inhaling, and the user can be ensured to breathe smoothly.

Description

Intelligent breathing filtering device

Technical Field

The invention relates to the technical field of medical protective equipment, in particular to an intelligent breathing filtering device.

Background

Nowadays, people pay more and more attention to the problem of environmental pollution, the problem of air pollution is very severe in many large and medium-sized cities in China, and the proportion of the weather of haze rises year by year. Therefore, people often wear the mask to filter air when going out daily, thereby ensuring that the sucked air is clean.

The existing breathing filter device can not supply air to the inside of the mask actively in time when the amount of air in the mask is reduced when a user inhales, and can lead the user to feel hard when inhaling, thereby causing the user to breathe unsmoothly.

Disclosure of Invention

The invention aims to overcome the problems in the prior art, and provides an intelligent breathing filter device which not only can provide clean air for a user, but also can ensure the air pressure inside and outside a mask to be consistent through active air supply, so that the user does not feel hard when inhaling, and the user can be ensured to breathe smoothly.

The invention provides an intelligent breathing filtering device, which comprises:

the mask is tightly attached to the face of a user and is provided with an air inlet and an air outlet;

the air purification mechanism is communicated with the air inlet of the mask;

the exhaust mechanism comprises a valve seat, an annular pressure sensor, a valve core, a valve plug, a vent pipe and a valve cover, wherein the valve seat is connected at the exhaust port of a mask, the valve seat is provided with a step through hole, the small hole end of the step through hole is communicated with the exhaust port of the mask, one end of the annular pressure sensor is connected on the step surface in the step through hole, the annular pressure sensor is used for detecting the pressure applied by the valve core in real time, the outer wall of the valve core is in sliding connection with the large hole end of the step through hole, one end of the valve core is in tight contact with the other end of the annular pressure sensor, the valve core is provided with a tapered hole, the tapered hole is communicated with the step through hole, one end of the valve plug is in sealing connection with the side wall of the tapered hole, one end of the vent pipe is fixedly connected with the valve seat, the vent pipe is provided with a special-shaped hole, the side wall of the valve plug is in sliding connection with the special-shaped hole, a gap is left between the side wall of the special-shaped hole and the side wall of the valve plug is communicated with the tapered hole, the valve cover is fixedly connected with the other end of the vent pipe, the valve cover is provided with a vent hole, the vent hole is communicated with the special-shaped hole, a spring is further arranged in the special-shaped hole, one end of the spring abuts against the inner wall of the valve cover, and the other end of the spring abuts against one end, away from the conical hole, of the valve plug;

the controller, with air purification mechanism and annular pressure sensor electricity are all connected, predetermine the pressure value in the controller, and the real-time pressure value signal that annular pressure sensor detected is collected to the controller to do the contrast with real-time pressure value and predetermine the pressure value signal, when real-time pressure value is higher than predetermine the pressure value, controller control air purification mechanism air feed, the controller electricity is connected with power supply unit.

Preferably, a sealing rubber ring is further arranged between the valve core and the annular pressure sensor, the outer side wall of the sealing rubber ring is connected with the inner wall of the large hole end of the valve seat in a sealing mode, one end of the sealing rubber ring is in close contact with the annular pressure sensor, and the other end of the sealing rubber ring is in close contact with the valve core.

Preferably, the valve core is provided with a plurality of rings of annular teeth at one end in close contact with the sealing rubber ring, and each ring of annular teeth is in close contact with the end face of the sealing rubber ring.

Preferably, the valve cover is provided with an internal thread, the outer wall of the vent pipe is provided with an external thread matched with the internal thread, and the internal thread is in threaded connection with the external thread.

Preferably, the air purification mechanism comprises an air pump, a filter and an air bag, an air inlet end of the air pump is communicated with the atmosphere, an air outlet end of the air pump is communicated with the filter, the filter is communicated with an air inlet end of the air bag, an air outlet end of the air bag is communicated with an electromagnetic throttle valve, the electromagnetic throttle valve is communicated with an air inlet of the mask, and the air pump and the electromagnetic throttle valve are both electrically connected with the controller.

Preferably, the air pump, the filter, the air bag, the electromagnetic throttle valve, the controller and the power supply device are all arranged in the shell.

Preferably, the shell is further connected with a waistband.

Compared with the prior art, the invention has the beneficial effects that: the intelligent breathing filter device not only can provide clean air for a user, but also can ensure the air pressure inside and outside the mask to be consistent through active air supply, so that the user does not feel hard when inhaling, and the user can be ensured to breathe smoothly. Through set up the sealing rubber circle between case and annular pressure sensor, through sealing rubber circle and the big pore end inner wall sealing connection of disk seat and case in close contact with to prevent that unpurified gas from leaking into in the face guard from the gap of case and the big pore end inner wall of disk seat. Because the sealing rubber circle is located between case and the annular pressure sensor, consequently guarantee that the dynamics that the case applied on the annular pressure sensor is even to promote the accuracy that the annular pressure sensor detected. Through setting up many rings of annular teeth, increased the area of contact of case and sealing rubber circle to increase exhaust mechanism's gas tightness, can effectively prevent exhaust mechanism gas leakage. By screwing the valve cover, the elastic force applied to the valve plug by the spring is adjusted, and the leakage of the exhaust mechanism caused by the insufficient sealing performance of the valve plug and the conical hole of the valve core due to the insufficient elastic force of the spring is prevented. Can carry out effective filtration to the air through setting up air pump, filter and gasbag to when needs carry out the air feed, in time carry out the air feed in to the face guard. Through setting up the casing to all locate air pump, filter, gasbag, electromagnetism choke valve, controller and power supply unit in the casing, thereby hoisting device's wholeness, the person of facilitating the use carries. Through setting up the waistband, utilize the waistband to connect the casing at user's waist to the person of facilitating the use carries and uses.

Drawings

FIG. 1 is a schematic view of the construction of a mask according to the present invention;

FIG. 2 is a front view of the mask of the present invention;

FIG. 3 is a cross-sectional view of the A-A plane of the present invention;

FIG. 4 is an enlarged view of a portion of the ring gear of the present invention;

fig. 5 is a schematic structural view of the purification mechanism of the present invention.

Description of reference numerals:

101. the air pump comprises a mask, 102, a valve seat, 103, an annular pressure sensor, 104, a valve core, 105, a valve plug, 106, a vent pipe, 107, a valve cover, 108, a step through hole, 109, a tapered hole, 110, a special-shaped hole, 111, a vent hole, 112, a spring, 2, a sealing rubber ring, 3, annular teeth, 401, an air pump, 402, a filter, 403, an air bag, 404, an electromagnetic throttle valve and 5, and a shell.

Detailed Description

Detailed description of the preferred embodimentsthe following detailed description of the present invention will be made with reference to the accompanying drawings 1-5, although it should be understood that the scope of the present invention is not limited to the specific embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Example 1:

as shown in fig. 1 to 3, the present invention provides an intelligent respiratory filtration apparatus, comprising: the face mask comprises a face mask 101, an air purification mechanism, an exhaust mechanism and a controller, wherein the face mask 101 is tightly attached to the face of a user, and the face mask 101 is provided with an air inlet and an air outlet; the air purification mechanism is communicated with the air inlet of the mask 101; the exhaust mechanism comprises a valve seat 102, an annular pressure sensor 103, a valve core 104, a valve plug 105, a vent pipe 106 and a valve cover 107, the valve seat 102 is connected with an exhaust port of a mask 101, the valve seat 102 is provided with a step through hole 108, a small hole end of the step through hole 108 is communicated with an exhaust port of the mask 101, one end of the annular pressure sensor 103 is connected with a step surface in the step through hole 108, the annular pressure sensor 103 is used for detecting the pressure applied by the valve core 104 in real time, the outer wall of the valve core 104 is in sliding connection with a large hole end of the step through hole 108, one end of the valve core 104 is in close contact with the other end of the annular pressure sensor 103, the valve core 104 is provided with a tapered hole 109, the tapered hole 109 is communicated with the step through hole 108, one end of the valve plug 105 is in sealing connection with the side wall of the tapered hole 109, one end of the vent pipe 106 is fixedly connected with the valve seat 102, the vent pipe 106 is provided with a special-shaped hole 110, and the side wall of the valve plug 105 is in sliding connection with the special-shaped hole 110, a gap is reserved between the special-shaped hole 110 and the side wall of the valve plug 105, the special-shaped hole 110 is communicated with the tapered hole 109, the valve cover 107 is fixedly connected with the other end of the vent pipe 106, the valve cover 107 is provided with a vent hole 111, the vent hole 111 is communicated with the special-shaped hole 110, a spring 112 is further arranged in the special-shaped hole 110, one end of the spring 112 abuts against the inner wall of the valve cover 107, and the other end of the spring 112 abuts against one end, far away from the tapered hole 109, of the valve plug 105; the controller with air purification mechanism and annular pressure sensor 103 are all connected electrically, predetermine the pressure value in the controller, and the real-time pressure value signal that annular pressure sensor 103 detected is collected to the controller to do the contrast with real-time pressure value and predetermine the pressure value signal, when the real-time pressure value is higher than predetermine the pressure value, controller control air purification mechanism air feed, the controller electricity is connected with power supply unit.

The working principle of example 1 is now briefly described:

after the user wears the mask 101, the user's mouth and nose are wrapped by the mask 101, and when the user exhausts: the air pressure in the mask 101 is increased, the air enters the step hole of the valve seat 102 through the air outlet of the mask 101, the air pressure pushes the valve plug 105 to move in the direction away from the valve plug 104 in the special-shaped hole 110 of the vent pipe 106, the spring 112 is in a compressed state, the valve plug 105 is separated from the tapered hole 109 of the valve plug 104, and the air is exhausted out of the mask 101 through the tapered hole 109 and the gap between the special-shaped hole 110 and the valve plug 105 by the vent hole 111 of the valve cover 107; when the user inhales: the air pressure in the face mask 101 is reduced, the spring 112 returns, the elastic force of the spring 112 pushes the valve plug 105 to extrude the tapered hole 109, the valve plug 105 is in close contact with the tapered hole 109, thereby ensuring the air tightness of the face mask 101, when the air pressure is continuously reduced, the air pressure pushes the valve plug 105 to move towards the direction close to the valve core 104, the valve plug 105 pushes the valve core 104 to move towards the annular pressure sensor 103, the valve core 104 extrudes the annular pressure sensor 103, the annular pressure sensor 103 is used for detecting the pressure applied by the valve core 104 in real time, the controller collects the real-time pressure value signal detected by the annular pressure sensor 103 and compares the real-time pressure value with the preset pressure value signal, the preset pressure value in the controller is the pressure borne by the annular pressure sensor 103 when the difference between the air pressure inside and outside the face mask 101 is zero, when the real-time pressure value is higher than the preset pressure value, the controller controls the air purification mechanism to supply air, the controller introduces clean air into the face mask 101, the air is introduced into the face mask 101, the air pressure in the face mask 101 is recovered, when the air pressure inside and outside the face mask 101 is consistent, the real-time pressure detected by the pressure sensor is equal to the preset pressure, the controller controls the air purification mechanism to stop air supply, and therefore when a user inhales, the air pressure in the face mask 101 is consistent with the external air pressure.

The intelligent breathing filter device not only can provide clean air for a user, but also can ensure the air pressure inside and outside the face mask 101 to be consistent through active air supply, so that the user does not feel hard when inhaling, and the user can be ensured to breathe smoothly.

Example 2:

on the basis of embodiment 1, in order to increase the airtightness of the exhaust mechanism and improve the detection accuracy of the annular pressure sensor 103.

As shown in fig. 1 and 4, a sealing rubber ring 2 is further disposed between the valve core 104 and the annular pressure sensor 103, an outer side wall of the sealing rubber ring 2 is connected with an inner wall of a large hole end of the valve seat 102 in a sealing manner, one end of the sealing rubber ring 2 is in close contact with the annular pressure sensor 103, and the other end of the sealing rubber ring 2 is in close contact with the valve core 104.

By arranging the sealing rubber ring 2 between the valve core 104 and the annular pressure sensor 103, when a user inhales, and at the beginning, under the action of air pressure, the valve core 104 presses the sealing rubber ring 2, and the sealing rubber ring 2 is in sealing connection with the inner wall of the large hole end of the valve seat 102 and the valve core 104 is in close contact with each other, so that unpurified gas is prevented from leaking into the mask 101 from a gap between the valve core 104 and the inner wall of the large hole end of the valve seat 102. Furthermore, because the sealing rubber ring 2 is arranged between the valve core 104 and the annular pressure sensor 103, the valve core 104 indirectly extrudes the annular pressure sensor 103 through the sealing rubber ring 2, so that the force exerted on the annular pressure sensor 103 by the valve core 104 is ensured to be uniform, and the detection accuracy of the annular pressure sensor 103 is improved.

Example 3:

in addition to example 2, in order to further increase the airtightness of the exhaust mechanism, the exhaust mechanism was prevented from leaking gas.

As shown in fig. 1 and 4, a plurality of rings of annular teeth 3 are arranged at one end of the valve core 104, which is in close contact with the sealing rubber ring 2, and each ring of annular teeth 3 is in close contact with the end face of the sealing rubber ring 2.

When a user inhales, initially, under the action of air pressure, the valve core 104 presses the sealing rubber ring 2, and the multiple circles of annular teeth 3 on the end face of the valve core 104 are embedded into the sealing rubber ring 2. Through setting up many rings of annular tooth 3, increased the area of contact of case 104 and sealing rubber circle 2 to increase exhaust mechanism's gas tightness, can effectively prevent exhaust mechanism gas leakage.

Example 4:

in addition to embodiment 1, in order to adjust the elastic force applied by the spring 112 to the valve plug 105, the leakage of the exhaust mechanism due to insufficient sealing performance between the valve plug 105 and the tapered hole 109 of the valve body 104 caused by insufficient elastic force of the spring 112 is prevented.

As shown in fig. 1, the valve cover 107 is provided with an internal thread, and the outer wall of the vent pipe 106 is provided with an external thread matching with the internal thread, and the internal thread is in threaded connection with the external thread.

By screwing the bonnet 107, under the action of the screw thread, the distance between the bonnet 107 and the valve plug 105 is changed, so that the precompression amount of the spring 112 is changed, the elastic force applied to the valve plug 105 by the spring 112 is adjusted, and the leakage of the exhaust mechanism caused by the insufficient sealing performance of the valve plug 105 and the tapered hole 109 of the valve core 104 due to the insufficient elastic force of the spring 112 is prevented.

Example 5:

in addition to embodiment 1, air is supplied into the mask 101 in time when air supply is necessary for effective filtering and purification of air.

As shown in fig. 5, the air purification mechanism includes an air pump 401, a filter 402 and an air bag 403, an air inlet end of the air pump 401 is communicated with the atmosphere, an air outlet end of the air pump 401 is communicated with the filter 402, the filter 402 is communicated with an air inlet end of the air bag 403, an air outlet end of the air bag 403 is communicated with an electromagnetic throttle valve 404, the electromagnetic throttle valve 404 is communicated with an air inlet of the mask 101, and the air pump 401 and the electromagnetic throttle valve 404 are both electrically connected with the controller.

The air pump 401 pumps air, the air is filtered by the filter 402 and enters the air bag 403 to be stored, and the controller controls the electromagnetic throttle valve 404 to operate, thereby controlling the on-off of air to the mask 101. The air can be effectively filtered and purified by arranging the air pump 401, the filter 402 and the air bag 403, and when air supply is needed, the air can be supplied into the face mask 101 in time.

As a preferable scheme, as shown in fig. 5, the air pump device further comprises a housing 5, and the air pump 401, the filter 402, the air bag 403, the electromagnetic throttle valve 404 and the controller are all arranged in the housing 5. By arranging the casing 5 and arranging the air pump 401, the filter 402, the air bag 403, the electromagnetic throttle valve 404, the controller and the power supply device in the casing 5, the integrity of the device is improved, and the device is convenient for a user to carry.

Preferably, a waist belt is further connected to the housing 5. By arranging the waist belt, the shell 5 is connected to the waist of the user by the waist belt, thereby being convenient for the user to carry and use.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An intelligent respiratory filtration device, comprising:

the face mask (101) is tightly attached to the face of a user, and the face mask (101) is provided with an air inlet and an air outlet;

an air purification mechanism in communication with an air inlet of the face mask (101);

exhaust mechanism, including valve seat (102), annular pressure sensor (103), case (104), valve plug (105), breather pipe (106) and valve gap (107), valve seat (102) are connected in face guard (101) gas vent department, and valve seat (102) are equipped with step through-hole (108), the aperture end of step through-hole (108) communicates with the gas vent of face guard (101), annular pressure sensor (103) one end is connected on the step face in step through-hole (108), and annular pressure sensor (103) are used for the pressure that real-time detection case (104) applyed, case (104) outer wall and the big pore end sliding connection of step through-hole (108), case (104) one end and annular pressure sensor (103) other end in close contact with, case (104) are equipped with bell mouth (109), bell mouth (109) with step through-hole (108) intercommunication, one end of the valve plug (105) is hermetically connected with the side wall of the tapered hole (109), one end of the vent pipe (106) is fixedly connected with the valve seat (102), the vent pipe (106) is provided with a special-shaped hole (110), the side wall of the valve plug (105) is slidably connected with the special-shaped hole (110), a gap is reserved between the special-shaped hole (110) and the side wall of the valve plug (105), the special-shaped hole (110) is communicated with the tapered hole (109), the valve cover (107) is fixedly connected with the other end of the vent pipe (106), the valve cover (107) is provided with a vent hole (111), the vent hole (111) is communicated with the special-shaped hole (110), a spring (112) is further arranged in the special-shaped hole (110), one end of the spring (112) is abutted to the inner wall of the valve cover (107), and the other end of the spring (112) is abutted to one end, far away from the tapered hole (109), of the valve plug (105);

the controller, with air purification mechanism and annular pressure sensor (103) are all connected electrically, predetermine the pressure value in the controller, and the real-time pressure value signal that annular pressure sensor (103) detected is collected to the controller to do the contrast with real-time pressure value and with predetermine the pressure value signal, when real-time pressure value is higher than predetermine the pressure value, controller control air purification mechanism air feed, the controller electricity is connected with power supply unit.

2. The intelligent breathing filtration device according to claim 1, wherein a sealing rubber ring (2) is further disposed between the valve core (104) and the annular pressure sensor (103), an outer side wall of the sealing rubber ring (2) is connected with an inner wall of a large hole end of the valve seat (102) in a sealing manner, one end of the sealing rubber ring (2) is in tight contact with the annular pressure sensor (103), and the other end of the sealing rubber ring (2) is in tight contact with the valve core (104).

3. The intelligent breathing filter device according to claim 2, wherein the valve core (104) is provided with a plurality of rings of annular teeth (3) at one end in close contact with the sealing rubber ring (2), and each ring of annular teeth (3) is in close contact with the end face of the sealing rubber ring (2).

4. The intelligent respiratory filtration device as claimed in claim 1, wherein the valve cover (107) is provided with an internal thread, the outer wall of the vent pipe (106) is provided with an external thread matching with the internal thread, and the internal thread is in threaded connection with the external thread.

5. The intelligent respiratory filtration device according to claim 1, wherein the air purification mechanism comprises an air pump (401), a filter (402) and an air bag (403), an air inlet end of the air pump (401) is communicated with the atmosphere, an air outlet end of the air pump (401) is communicated with the filter (402), the filter (402) is communicated with an air inlet end of the air bag (403), an electromagnetic throttle valve (404) is communicated with an air outlet end of the air bag (403), the electromagnetic throttle valve (404) is communicated with an air inlet of the face mask (101), and the air pump (401) and the electromagnetic throttle valve (404) are both electrically connected with the controller.

6. The intelligent respiratory filtration device according to claim 5, further comprising a housing (5), wherein the air pump (401), the filter (402), the air bag (403), the electromagnetic throttle valve (404), the controller and the power supply device are all disposed in the housing (5).

7. An intelligent respiratory filtration device as claimed in claim 6 wherein a belt is also attached to the housing (5).