CN212016478U

CN212016478U - Portable positive pressure respirator

Info

Publication number: CN212016478U
Application number: CN202020427511.2U
Authority: CN
Inventors: 饶军辉; 鲁子涵
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-30
Filing date: 2020-03-30
Publication date: 2020-11-27
Anticipated expiration: 2030-03-30

Abstract

The utility model belongs to the technical field of protective breathing devices, in particular to a portable positive pressure respirator, which comprises a buffer gas tank, wherein a three-way valve is arranged at the tank opening of the buffer gas tank, and the buffer gas tank is communicated with a first circulation opening of the three-way valve; the inlet of the low-pressure air pump is communicated with the atmosphere, the outlet of the low-pressure air pump is communicated with a second circulation port of the three-way valve through a hose, and an air inlet one-way valve is arranged at the second circulation port; and the air inlet of the fitting mask is communicated with a third flow port of the three-way valve through a hose, a prepressing air outlet one-way valve is arranged at the third flow port, and a prepressing air outlet one-way valve is arranged at the air outlet of the fitting mask. The utility model discloses simple structure, light little convenient, make use cost low, the malleation effect is showing, realizes effective protection to respiratory under the specific harmful environment.

Description

Portable positive pressure respirator

Technical Field

The utility model belongs to the technical field of the protection respiratory device, concretely relates to portable malleation respirator.

Background

Under the external environment with the functions of harmful dust, virus droplets and the like, the protection is usually carried out by adopting N95 or a disposable medical mask, the core of the protection function of the N95 or the disposable medical mask is a melt-blown cloth lining layer with filtration and adsorption functions, and the melt-blown cloth lining layer realizes the blocking and filtration of the harmful dust and the virus droplets by the functions of filtration of superfine winding fibers and electrostatic adsorption. Because the exhaled air contains water vapor, after the melt-blown fabric lining layer works for several hours, the electrostatic adsorption capacity of the melt-blown fabric is damaged due to the moisture action, and the melt-blown fabric cannot continuously and effectively filter and protect harmful dust and droplets with viruses, and only needs to be discarded and replaced frequently. The mask is frequently discarded and replaced in severe epidemic situations and other environments, which not only causes a great deal of waste, but also causes severe environmental pollution. In addition, under the condition that the risk of external harmful environment is relatively high, the periphery of the N95 or disposable medical mask is often not tightly sealed, and in the process of inhaling, external pollutants are likely to enter the respiratory tract along the periphery of the mask due to the action of negative pressure, so that the health of a wearer is damaged.

The existing positive pressure respirator is a high pressure air tank type positive pressure respirator special for industrial and fire fighting, the pressure of an air tank is up to 20-30MPa, the working time is only dozens of minutes, the volume is large, the weight is heavy, the manufacturing cost is high, the use is not safe, and the air tank is inflated and needs to be matched with a special high pressure compressor, so that the respirator is completely not suitable for the common use environment.

If the air pump and the air tank system with higher pressure are directly adopted, a pressure reducing valve needs to be equipped at the same time, and due to the throttling loss effect of the pressure reducing valve, the power required by the air pump and the capacity requirement of the required power supply are higher, so that the portability of the system is influenced, and the continuous working time of the system is shortened.

Disclosure of Invention

In order to solve the problem that exists among the prior art, the utility model aims at providing a portable malleation respirator, simple structure, light convenient, make low in use cost, the malleation effect is showing, realizes effective protection to respiratory under the specific harmful environment.

In order to achieve the above object, the utility model adopts the following technical scheme:

the utility model provides a pair of portable malleation respirator, include:

the buffer gas tank is provided with a three-way valve at a tank opening and communicated with a first circulation opening of the three-way valve;

the inlet of the low-pressure air pump is communicated with the atmosphere, the outlet of the low-pressure air pump is communicated with a second circulation port of the three-way valve through a hose, and an air inlet one-way valve is arranged at the second circulation port;

and the air inlet of the fitting mask is communicated with a third flow port of the three-way valve through a hose, a prepressing air outlet one-way valve is arranged at the third flow port, and a prepressing air outlet one-way valve is arranged at the air outlet of the fitting mask.

Furthermore, the device also comprises a replaceable filter device, wherein the inlet is communicated with the atmosphere, and the outlet is communicated with the inlet of the low-pressure air pump.

Further, a plurality of layers of melt-blown cloth are arranged inside the replaceable filter device.

Further, the buffer air tank further comprises an elastic air bag which is arranged inside the buffer air tank, and the elastic air bag is communicated with the first circulation port of the three-way valve.

Further, the filter also comprises a vent pipe arranged on the side surface of the buffer gas tank, wherein one end of the vent pipe is communicated with the buffer gas tank, and the other end of the vent pipe is communicated with the replaceable filter device.

Further, the backpack comprises a backpack body with straps, and the attaching face mask, the replaceable filtering device, the buffer air tank and the low-pressure air pump are all placed in the backpack body.

Furthermore, the wrist guard also comprises a wrist guard and a control panel fixed on the wrist guard, and the control panel is electrically connected with the low-pressure air pump.

Further, the backpack comprises a power supply arranged in the backpack, and the power supply supplies power to the low-voltage air pump and the control panel.

Compared with the prior art, the utility model has the advantages of it is following:

the utility model discloses portable malleation respirator, including buffering gas pitcher, the low pressure air pump, laminating face guard and removable filter equipment, use the low pressure air pump to replace original high pressure air pump, and high-pressure compressor and relief pressure valve have been saved, malleation respirator after the improvement, moreover, the steam generator is simple in structure, it is light convenient, practice thrift the electric energy, the security is high, it is low to make use cost, the malleation effect is showing, effective filtration has been realized, prevent the harmful dust of external environment, take the effect of virus droplet etc., realize effective protection to respiratory under the specific harmful environment, can produce good social and economic benefits.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.

FIG. 1 is a schematic structural view of a portable positive pressure respirator according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a portable positive pressure respirator according to an embodiment of the present invention.

The reference numbers in the figures denote: 1. the air conditioner comprises a buffer air tank, 2 parts of a three-way valve, 201 parts of a first vent, 202 parts of a second vent, 203 parts of a third vent, 3 parts of a low-pressure air pump, 4 parts of an air inlet one-way valve, 5 parts of a joint mask, 6 parts of a pre-pressing air outlet one-way valve, 7 parts of a pre-pressing expiration one-way valve, 8 parts of a hose, 9 parts of a replaceable filter device, 10 parts of an elastic air bag, 11 parts of a vent pipe, 12 parts of a shoulder strap, 13 parts of a backpack, 14 parts of a wrist guard, 15 parts of a.

Detailed Description

In order to make the technical solutions in the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments.

Example one

As shown in fig. 1, the portable positive pressure respirator of the present embodiment includes a buffer gas tank 1, a low pressure gas pump 3, a fitting face mask 5, an elastic gas bag 10 and a replaceable filter device 9; the utility model is characterized in that a three-way valve 2 is arranged at the filler of a buffer gas tank 1, an elastic airbag 10 is arranged inside the buffer gas tank 1, the elastic airbag 10 is communicated with a first circulation port 201 of the three-way valve 2, a vent pipe 11 is arranged on the side surface of the buffer gas tank 1, one end of the vent pipe 11 is communicated with the buffer gas tank 1, the other end is communicated with a replaceable filter device 9, the inlet of the replaceable filter device 9 is communicated with the atmosphere, the outlet is communicated with the inlet of a low-pressure air pump 3, the outlet of the low-pressure air pump 3 is communicated with a second circulation port 202 of the three-way valve 2 through a hose 8, an air inlet one-way valve 4 is arranged at the second circulation port 202, a fitting mask 5 can be worn on the face of a user, the user exhales and inhales clean air through the fitting, a prepressing air outlet one-way valve 6 is arranged at the third flow port 203, and a prepressing expiration one-way valve 7 is arranged at the air outlet. The low-pressure air pump 3 has small flow and low pressure.

Preferably, a plurality of layers of melt-blown cloth are arranged inside the replaceable filter device 9 and are used for filtering and blocking harmful dust and virus-carrying droplets in the air.

In addition to the above structure, the positive pressure respirator further comprises a backpack 13 which is provided with a strap 12, when the respirator is used, the replaceable filtering device 9, the buffer gas tank 1 and the low-pressure gas pump 3 are all placed inside the backpack 13, the attaching face mask 5 is worn on the face of a user, when the respirator is not used, the attaching face mask 5 and other devices are put in the backpack 13 together, and the backpack 13 is carried up and is convenient to carry. In addition, a through hole is provided in backpack 13 for communicating replaceable filter 9 with the atmosphere. This malleation respirator still includes wrist band 14 and installs control panel 15 on wrist band 14, and control panel 15 is connected with 3 electricity of low pressure air pump, and the both ends of wrist band 14 have the magic subsides to fix wrist band 14 on user's wrist, convenient dismantlement fixes control panel 15 on wrist band 14, and convenient to use person operates control panel 15 interface, thereby controls opening of low pressure air pump 3 and stops. The positive pressure respirator also includes a power supply 16 disposed within the backpack 13, the power supply 16 providing power to the low pressure air pump 3 and the control panel 15.

The working principle is as follows:

in the expiration process, the pre-compaction of buffer tank 1 export check valve 6 of giving vent to anger is closed, and low pressure air pump 3 starts, and the filtration that the outside air was through removable filter equipment 9 becomes clean air, and clean air is gone into the elasticity gasbag 10 cavity in buffer tank 1 by the pump through the check valve 4 that admits air, and clean air is stored in the elasticity gasbag 10 cavity in buffer tank 1, exhales through the 7 exhalations of pre-compaction expiration check valve 7 of laminating face guard 5 upper band.

In the inspiration process, the low-pressure air pump 3 is started, the air inlet check valve 4 and the pre-pressing air outlet check valve 6 are opened, the pre-pressing expiration check valve 7 is closed, the outside air is filtered by the replaceable filtering device 9 to become clean air, the clean air is pumped into the attaching face mask 5 to be inhaled by a user, and the clean air stored in the elastic air bag 10 cavity plays a role in supplementing air inflow.

Set up breather pipe 11 in buffer gas jar 1 side in this example, clean air constantly saves in elastic airbag 10 cavity, along with the air quantity constantly increases, elastic airbag 10 expands gradually, and buffer gas jar 1 need carry out the pressure release through breather pipe 11.

The replaceable filter device 9 does not contact the moist air generated in the breathing process, so that the filter layer melt-blown cloth can be continuously used for a long time, and can be reused after being cleaned, thereby reducing a large amount of waste of the melt-blown cloth and pollution to the environment.

A prepressing expiration check valve 7 attached to the air outlet of the mask 5 ensures the positive pressure effect in the expiration process; the pre-compaction of 1 export of buffer tank is given vent to anger check valve 6, guarantees the malleation effect of the process of breathing in, the utility model discloses expiration, the process of breathing in all keep the malleation effect to external environment, realize effective protection to respiratory under the specific harmful environment.

Example two

The contents of this embodiment are substantially the same as those of the first embodiment, and the same parts are not described again, except that:

as shown in fig. 2, the buffer gas tank 1 is of a fully closed structure, the buffer gas tank 1 is communicated with the first circulation port 201 of the three-way valve 2, the buffer gas tank 1 is not provided with the vent pipe 11 and is not communicated with the atmosphere, the elastic airbag 10 is not arranged inside the buffer gas tank 1, the positive pressure breathing effect can be realized theoretically, and the volume of the buffer gas tank 1 can be slightly smaller. However, since the function of storing clean air when the elastic air bag 10 exhales and supplementing the air inflow when the air bag inhales is cancelled, the air flow rate and the energy consumption of the low-pressure air pump 3 need to be doubled, and the continuous working time is reduced to half of the working time of the low-pressure air pump 3 in the first embodiment under the condition that the capacity of the power supply 16 is fixed.

The working principle is as follows:

in the expiration process, the prepressing air outlet one-way valve 6 at the outlet of the buffer air tank 1 is closed, and the expired air is exhaled through the prepressing expiration one-way valve 7 on the upper belt of the fitting mask 5. In the process of breathing in, low pressure air pump 3 starts, and the check valve 6 is given vent to anger to admit air 4 and the pre-compaction and is opened, and the check valve 7 is closed in the pre-compaction expiration, and the filtration that the external air passes through removable filter equipment 9 becomes clean air, and clean air is gone into laminating face guard 5 by the pump, supplies the user to inhale, and buffering gas pitcher 1 has the effect of buffering air current at this in-process.

The utility model is suitable for an external environment of harmful dust, the effect such as take virus droplet, and other suitable specific external environment.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of the terms "a" or "an" and the like in the description and in the claims of this application do not necessarily denote a limitation of quantity. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

Finally, it is to be noted that: the above description is only the preferred embodiment of the present invention, which is only used to illustrate the technical solution of the present invention, and is not used to limit the protection scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention is included in the protection scope of the present invention.

Claims

1. A portable positive pressure respirator, comprising:

2. The portable positive pressure respirator of claim 1, further comprising a replaceable filter device, the inlet communicating with the atmosphere and the outlet communicating with the inlet of the low pressure air pump.

3. The portable positive pressure respirator of claim 2, wherein the replaceable filter device has multiple layers of meltblown disposed therein.

4. The portable positive pressure respirator of claim 2, further comprising an elastic bladder mounted inside the buffer tank, the elastic bladder being in communication with the first flow port of the three-way valve.

5. The portable positive pressure respirator of claim 4, further comprising a vent pipe disposed on the side of the buffer tank, wherein one end of the vent pipe is communicated with the buffer tank, and the other end of the vent pipe is communicated with the replaceable filter device.

6. The portable positive pressure respirator of claim 2 or 5, further comprising a backpack having a harness, the conformable face mask, the replaceable filter device, the buffer tank, and the low pressure air pump all being placed inside the backpack.

7. The portable positive pressure respirator of claim 6, further comprising a cuff and a control panel secured to the cuff, the control panel being electrically connected to the low pressure air pump.

8. The portable positive pressure respirator of claim 7, further comprising a power source disposed within the backpack, the power source powering the low pressure air pump and the control panel.