CN105935472A - Auxiliary air supply gas mask - Google Patents

Abstract

An auxiliary air supply gas mask, which uses a fan to pump air in for filtering and purifying, so as to reduce the resistance of a gas filter box, avoid body discomfort caused by unsmooth breathing and achieve better gas protection effect, therefore, the structure of the invention is more reasonable; the fan pumps air in and then enters the face mask through the channel to circulate, so that negative pressure cannot be formed in the face mask, and therefore, outside toxic gas cannot enter the face mask from the position where the edge of the face mask is attached to the face to influence the filtering effect; in addition, because the mask is internally provided with the inspiration one-way valve and the expiration one-way valve which are opposite in opening direction, the mask can completely inhale the purified air during inspiration, and the expired lung gas is more completely exhausted during expiration, thereby reducing the lung gas remained in the mask and ensuring that a wearer can inhale the purified air for a long time, therefore, the mask has more reasonable structure and better gas defense effect, and can better ensure the quality of the breathing air of the wearer.

Description

Auxiliary air supply gas mask

technical field

The invention relates to an auxiliary air supply gas mask.

Background technique

At present, the filtering gas masks for civil and industrial use on the market rely on people's own breathing to inhale air through the filter box to purify it and then enter the human body. Because the resistance of this filtering gas mask is too large, it takes a long time It takes a lot of effort to inhale, which makes people's breathing difficult and easily causes physical discomfort. Secondly, when people breathe, a negative pressure is generated in the cavity of the gas mask, and the toxic gas outside will enter from the place where the edge of the mask fits the face. In the mask, the anti-virus effect is not good, and there will be too much residual gas trapped in the nasal cavity of the mask when exhaling carbon dioxide, which has an impact on people's health. Therefore, the applicant has improved the gas masks in the current market.

Contents of the invention

The purpose of the present invention is to overcome the deficiencies of the prior art and provide an auxiliary air-supply gas mask with more reasonable structure, better anti-virus effect and smooth breathing when worn.

In order to solve the above-mentioned technical problems, the present invention adopts the following technical solutions:

An auxiliary air-supply gas mask, comprising a poison filter box connected in sequence, a connector and a mask, the connector includes an outer ring integrally formed in the outer ring to separate the outer ring into a connecting part of the filter box and a mask The interlayer of the connection part; the connection part of the filter box is threadedly connected with the filter box, and a passage is provided on the interlayer; a fan and an inhalation one-way valve covered on the passage opening are arranged in the passage ; The passage is provided with a sleeve inlet which is sleeved together with the air inlet of the mask at the end of the connecting part of the mask; the suction one-way valve can open the passage when the fan is working; An exhalation port is provided on the exhalation port, and an exhalation one-way valve is arranged on the exhalation port, and its opening direction is just opposite to that of the inhalation one-way valve; the fan is driven by a power supply device to work.

In the improved solution to the above-mentioned auxiliary air-supply gas mask, the fan is arranged in the passage at the end of the connection part of the cartridge; the inhalation check valve is arranged on the surface of the passage at the end of the connection part of the mask superior.

In an improved solution to the above gas mask with auxiliary air supply, the power supply device is built in the connector, which includes a power supply battery and a fan switch.

In the improved solution to the above gas mask with auxiliary air supply, the power supply device is placed outside the mask, and is connected by wires to supply power to the fan inside the mask; the power supply device includes a power supply battery and a fan switch.

Compared with the prior art, the present invention has the beneficial effects: because it uses a fan to suck in the air to filter and purify it, thus reducing the resistance of the poisonous filter box, so that people don't have to suck it hard, and there will be no breathing problems. The physical discomfort caused by smooth and smooth, and achieve better anti-virus protection effect, so the structure of the present invention is more reasonable; at the same time, because the air is sucked in by the fan and then enters the mask to circulate through the channel, so in the mask. No negative pressure will be formed, so the toxic gas outside is not easy to enter the mask from the place where the edge of the mask fits the face and affect the filtering effect; One-way valve, so that the purified air can be fully inhaled when inhaling, and the exhaled lung air can be more completely discharged when exhaling, thereby reducing the remaining lung air in the mask to ensure that the wearer wears the mask Purified air can be inhaled for a long time. Therefore, the structure of the present invention is more reasonable, the anti-virus effect is better, and the quality of the breathing air of the wearer can be better guaranteed.

Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

【Description of drawings】

Fig. 1 is a three-dimensional schematic diagram of the present invention;

Fig. 2 is a three-dimensional schematic diagram II of the present invention;

Fig. 3 is an assembly schematic diagram 1 of the present invention;

Fig. 4 is the assembly diagram II of the present invention;

Fig. 5 is a structural schematic diagram of the connector of the present invention;

Figure 6 is a schematic diagram of the assembly of the connector of the present invention;

Fig. 7 is a three-dimensional schematic diagram 1 of the mask of the present invention;

Fig. 8 is a perspective view II of the mask of the present invention;

Fig. 9 is a schematic diagram between the power supply device of the present invention and the fan when it is external.

【detailed description】

An auxiliary air-supply gas mask, as shown in Figures 1 to 8, includes a gas filter box 1, a connector 2 and a mask 3 connected in sequence, the connector 2 includes an outer ring 21 integrally formed in the outer ring 21 for use To separate the outer ring 21 into the compartment 22 of the canister connection part 211 and the mask connection part 212; 23; In the passage 23, a fan 4 and an inhalation check valve 5 covering the mouth of the passage 23 are provided; the passage 23 is provided with an air inlet with the face mask 3 at the end that is located at the face mask connecting portion 212 31 socketed together with the sleeve inlet 231; the suction check valve 5 can get through the channel 23 when the fan 4 is working; the fan 4 is driven by the power supply device 6; as shown in Figures 7 and 8, in Described mask 3 is provided with exhalation port 32, is provided with exhalation one-way valve 7 on described exhalation port 32, and its opening direction is just opposite with this inhalation one-way valve 5, wears the use of gas mask like this Or when inhaling, the inhalation one-way valve 5 is opened, and the exhalation one-way valve 7 is closed; and when exhaling, the opposite is true.

In this embodiment, the power supply device 6 is built into the connector. As shown in Figures 3 to 6, the power supply device 6 includes a power supply battery 61 and a fan switch 62. When charging, you can use USB or DC interface to charge.

Of course, the power supply device 6 can also be placed outside the mask, as shown in Figure 9, it includes a power supply battery 61 and a fan switch 62, which is equivalent to the battery and the switch being placed outside, and then connected to the fan in the mask by wires. Power supply can reduce the weight of the gas mask on the one hand like this, and it is safer to use on the other hand; the power supply battery can be rechargeable battery or dry battery etc., when using rechargeable battery, can adopt interfaces such as USB to charge. The electrical connection between the fan switch 62 and the fan 4 is generally a plug-in connection for easy storage and safe use, such as a DC interface or a USB interface.

When assembling the embodiment of the present invention, the connector 2 must first be assembled: install the fan 4 in the channel 23 of the connector, and install the suction check valve 5 on the surface of the other end of the channel 23, and then install the power supply in the connector. device 6, and the fan 4 and the power supply device 6 wires are connected; next, the exhalation check valve 7 is mounted on the mask; then, the poison cartridge 1 is screwed into the cartridge connection part 211 , and then the air inlet 31 of the mask 3 is placed outside the sleeve inlet 231 of the passage 23, so that the assembly of the gas mask is completed. When using the present invention, wear a mask, operate the power supply device 6 to allow the fan 4 to be energized, and when the fan draws in the wind, it will first be filtered and purified by the canister and enter into the canister connection 211, and the filtered and purified air After the gas comes in from the passage 23, the inhalation check valve 5 is opened, so that it can enter the face shield 3 for the user to inhale.

As can be seen from the above, the present invention uses the fan 4 to suck in the air to filter and purify it, so that there is no need to rely on people to suck it, and there will be no physical discomfort caused by unsmooth breathing, so breathing is smooth when wearing it; and At the same time, since the air is sucked in by the fan and then circulated into the mask through the channel, there will be no negative pressure in the mask, so the toxic gas outside will not easily enter the mask from the place where the edge of the mask fits the face. And influence anti-virus effect; In addition, owing to be provided with the suction one-way valve 5 and the exhalation one-way valve 7 that opening direction is opposite in the mask, just can inhale purified air completely when inhaling like this, exhale one-way valve when inhaling The one-way valve is closed; when exhaling, the exhaled lung air is more completely discharged, and the inhalation one-way valve is closed when exhaling, thereby reducing the remaining lung air in the mask to ensure long-term inhalation by the wearer. Purified air. Therefore, the structure of the present invention is more reasonable, the anti-virus effect is better, and the quality of the breathing air of the wearer can be better guaranteed.

In this embodiment, the fan 4 is arranged in the channel 23 at the end of the connection part 211 of the filter box, that is, close to the side of the filter box, so as to facilitate the removal of air from the purification pores of the filter box. The inhalation one-way valve 5 is arranged on the channel surface at the end of the mask connecting portion 212 .

In this embodiment, the suction one-way valve 5 is installed on the end surface of the channel through the grid-shaped valve seat 24 .

Preferably, the face mask connecting portion 212 is provided with hanging ears 25 for tying the mask rope, and then the elastic lanyard is put on, so that the gas mask can be put on through the lanyard when wearing.

In summary, the above are only preferred embodiments of the present invention, and are not intended to limit the implementation scope of the present invention. That is, all equivalent changes and modifications made according to the content of the patent scope of the present invention shall belong to the technical scope of the present invention.

Claims (4)

1. an auxiliary air-supply canister respirator, it is characterized in that, including filter poison box (1) being sequentially connected with, adapter (2) and face shield (3), described adapter (2) includes that this outer shroud (21) is separated into the malicious box connecting portion (211) of filter and the interlayer (22) of face shield connecting portion (212) by outer shroud (21), one-body molded being used in outer shroud (21)；Described filter poison box connecting portion (211) threadeds with filter poison box (1), is provided with passage (23) on described interlayer (22)；The breather cheek valve (5) be provided with fan (4) in described passage (23), covering on this passage (23) mouth；Described passage (23) is provided with the set entrance (231) that the air inlet (31) with face shield (3) connects together in that one end being positioned at this face shield connecting portion (212)；Described breather cheek valve (5) can get through this passage (23) when this fan (4) works；Being provided with exhalation vents (32) on described face shield (3), be provided with expiratory one-way valve (7) on described exhalation vents (32), its opening direction is just contrary with this breather cheek valve (5)；Described fan (4) is driven work by electric supply installation (6).

Auxiliary air-supply canister respirator the most according to claim 1, it is characterised in that this passage (23) that described fan (4) is provided at filtering poison box connecting portion (211) that one end is interior；Described breather cheek valve (5) is provided on the channel surface of this face shield connecting portion (212) that one end.

Auxiliary air-supply canister respirator the most according to claim 1 and 2, it is characterised in that described electric supply installation (6) is built in adapter (2), and it includes supplying cell (61) and fan swicth (62).

Auxiliary air-supply canister respirator the most according to claim 1 and 2, it is characterised in that described electric supply installation (6) is external outside mask, is connected by electric wire and powers to the fan in face shield；Described electric supply installation (6) includes supplying cell (61) and fan swicth (62).