Power filtering air supply type respirator

Abstract

The invention discloses a power filtering air supply type respirator which comprises a respirator body, a containing groove is formed in the rear side of the respirator body, a filtering piece is placed in the containing groove, a flow guide shell for sealing the containing groove is detachably connected to the respirator body, an air inlet hole is formed in the flow guide shell, and a cavity is formed in the respirator body. A containing groove is formed in the machine body, a cavity is formed in the machine body, a vent hole communicated with the containing groove is formed in the rear wall of the cavity, an exhaust hole is formed in the front wall of the cavity, a main board, a battery and a fan are arranged in the cavity, the battery supplies power to the main board and the fan, the main board can control starting and stopping of the fan, meanwhile, the main board can control the rotating speed of the fan, and a display control unit is arranged on the machine body. The mainboard is connected with the display control unit and can transmit information to the display control unit for display. According to the device, the filter part can be conveniently replaced, the respiratory protection effect is improved, meanwhile, the wind speed can be adjusted, and the comfort of a wearer is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of respirators, and particularly to a powered air-purifying respirator. Background Art

[0002] A powered air-purifying respirator is a respiratory protection device that actively delivers filtered clean air through a blower and is suitable for high-risk environments.

[0003] Currently, the following problems exist in powered air-purifying respirators:

[0004] 1. The filter element cannot be replaced, and it is impossible to replace the filter element according to different usage environments, resulting in limited application scope of the respirator.

[0005] 2. The blower only has a fixed wind speed and cannot adjust the wind speed according to the needs of the user, resulting in insufficient comfort. Summary of the Invention

[0006] In view of the deficiencies in the prior art, the present invention provides a powered air-purifying respirator. This device can facilitate the replacement of the filter element, improve the respiratory protection effect, and at the same time can adjust the wind speed to enhance the comfort of the wearer.

[0007] A powered air-purifying respirator includes a body. There is a receiving groove at the rear side of the body. A filter element is placed in the receiving groove. A flow guide shell that closes the receiving groove is detachably connected to the body. An air inlet hole is opened on the flow guide shell. There is a cavity inside the body. A ventilation hole communicating with the receiving groove is opened on the rear wall of the cavity. An exhaust hole is opened on the front wall of the cavity. A main board, a battery, and a blower are arranged in the cavity. The battery powers the main board and the blower. The main board can control the start and stop of the blower. At the same time, the main board can control the rotation speed of the blower. A display control unit is arranged on the body. The main board is connected to the display control unit and can transmit information to the display control unit for display.

[0008] Preferably, a flow guide cover is arranged in the cavity of the body. The flow guide cover corresponds to the ventilation hole and the exhaust hole. The blower is arranged inside the flow guide cover.

[0009] Preferably, a gas sensor is arranged in the cavity of the body. The gas sensor is connected to the main board. The gas sensor can detect the gas content at the exhaust hole and send the information to the main board.

[0010] Preferably, an alarm is arranged on the body. The alarm is connected to the main board.

[0011] Preferably, the exhaust hole is connected to the mask inlet pipe.

[0012] Preferably, an air volume sensor is disposed in the cavity of the fuselage. The air volume sensor is connected to the main board, and the air volume sensor can detect the air volume at the exhaust hole and send the information to the main board.

[0013] Preferably, a binding strap is connected to the fuselage.

[0014] Preferably, a plurality of air inlet holes are formed in the bottom wall of the flow guide shell.

[0015] The beneficial effects of the present invention are embodied in:

[0016] In this technical solution, air inlet holes are formed in the flow guide shell, and the dirty gas enters the flow guide shell through the air inlet holes and then enters the filter element. The flow guide shell is used to disperse the local air flow, reduce the air flow resistance, make full use of the filter element, and improve the filtering effect. The detachable design facilitates the replacement of the filter element. Corresponding filter elements can be selected according to particulate matter, toxic gases, acidic gases, inorganic gases, mercury vapor, etc., to improve the respiratory protection effect.

[0017] In this technical solution, a blower is provided, and the main board controls the blower to achieve three-speed wind speed adjustment. The user can adjust the wind speed of the blower according to actual needs, thereby improving the comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. In all the drawings, similar elements or parts are generally denoted by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0019] Figure 1 It is an exploded view of the present invention.

[0020] In the drawings, 1 - flow guide shell, 2 - filter element, 3 - fuselage, 4 - display control unit, 5 - blower, 6 - flow guide cover, 7 - main board, 8 - battery. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The following will describe in detail the embodiments of the technical solutions of the present invention with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention, and thus are only examples and cannot be used to limit the protection scope of the present invention.

[0022] It should be noted that unless otherwise specified, the technical terms or scientific terms used in this application should have the ordinary meaning understood by those skilled in the art to which the present invention belongs.

[0023] Embodiment 1

[0024] As Figure 1As shown in the figure, in this embodiment, a power-filtered air-supplied respirator is provided, which includes a fuselage 3. There is a receiving groove at the rear side of the fuselage 3, and a filter element 2 is placed in the receiving groove. A diversion shell 1 that closes the receiving groove is detachably connected to the fuselage 3. An air inlet hole is opened on the diversion shell 1. There is a cavity inside the fuselage 3. A ventilation hole communicating with the receiving groove is opened on the rear wall of the cavity, and an exhaust hole is opened on the front wall of the cavity. A main board 7, a battery 8 and a fan 5 are arranged in the cavity. The battery 8 supplies power to the main board 7 and the fan 5. The main board 7 can control the start and stop of the fan 5, and at the same time, the main board 7 can control the rotation speed of the fan 5. A display control unit 4 is arranged on the fuselage 3. The main board 7 is connected to the display control unit 4 and can transmit information to the display control unit 4 for display.

[0025] The specific working principle is as follows: The dirty gas enters the diversion shell 1 through the air inlet hole, then passes through the filter element 2 for filtration, and then enters the cavity through the ventilation hole. It is transported by the power provided by the fan 5, discharged from the exhaust hole, and then transported into the mask to achieve gas filtration.

[0026] In this embodiment, an air inlet hole is opened on the diversion shell 1. The dirty gas enters the diversion shell 1 through the air inlet hole and then enters the filter element 2. The diversion shell 1 is used to disperse the local airflow, reduce the airflow resistance, make full use of the filter element 2, and improve the filtration effect. The detachable design facilitates the replacement of the filter element 2. Corresponding filter elements 2 can be selected according to particulate matter, toxic gases, acidic gases, inorganic gases, mercury vapor, etc. to improve the respiratory protection effect.

[0027] In this embodiment, a fan 5 is provided. The main board 3 controls the fan 5 to achieve three-speed wind speed adjustment. Users can adjust the wind speed of the fan 5 according to actual needs, thereby improving the comfort level.

[0028] In this embodiment, a diversion cover 6 is arranged in the cavity of the fuselage 3. The diversion cover 6 corresponds to the ventilation hole and the exhaust hole, and the fan 5 is arranged inside the diversion cover 6. In this embodiment, the diversion cover 6 is provided and used in cooperation with the fan 5. The diversion cover 6 is designed in the form of a volute to improve the working efficiency of the fan 5 and extend the standby time.

[0029] In this embodiment, a toxic gas sensor is arranged in the cavity of the fuselage 3. The toxic gas sensor is connected to the main board 7. The toxic gas sensor can detect the toxic gas content at the exhaust hole and send the information to the main board 7.

[0030] In this embodiment, an alarm is arranged on the fuselage 3. The alarm is connected to the main board 7.

[0031] In this embodiment, an air volume sensor is arranged in the cavity of the fuselage 3. The air volume sensor is connected to the main board 7. The air volume sensor can detect the air volume at the exhaust hole and send the information to the main board 7.

[0032] In this embodiment, a gas sensor is provided. The gas sensor can detect the gas content and send the information to the main board 7. When the gas content exceeds the standard, the main board 7 controls the display control unit 4 to display the value, and at the same time controls the alarm to give an alarm to prompt the user that the gas exceeds the standard and replace the filter element 2 in time.

[0033] In this embodiment, an air volume sensor is provided to detect the discharged air volume. In the case of the corresponding wind speed, insufficient air volume means that the filter element 2 is severely blocked. The main board 7 controls the display control unit 4 to display the value, and at the same time controls the alarm to give an alarm to prompt the user of the blockage and replace the filter element 2 in time.

[0034] In this embodiment, the exhaust hole is connected to the mask intake pipe. In this embodiment, the exhaust hole is connected to the mask intake pipe to supply gas to the mask.

[0035] In this embodiment, a binding strap is connected to the fuselage 3. In this embodiment, a binding strap is provided for fixing on the user's waist.

[0036] In this embodiment, a plurality of air inlet holes are opened on the bottom wall of the diversion shell 1. In this embodiment, a plurality of air inlet holes are opened on the bottom wall of the diversion shell 1 to achieve the effect of air flow dispersion.

[0037] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and the description of the present invention.

Claims

1. A power-filtered air-supplied respirator, characterized in that, It includes a fuselage (3). There is a receiving groove at the rear side of the fuselage (3). A filter element (2) is placed in the receiving groove. A diversion shell (1) that closes the receiving groove is detachably connected to the fuselage (3). An air inlet hole is opened on the diversion shell (1). There is a cavity inside the fuselage (3). A ventilation hole communicating with the receiving groove is opened on the rear wall of the cavity. An exhaust hole is opened on the front wall of the cavity. A main board (7), a battery (8) and a blower (5) are arranged in the cavity. The battery (8) supplies power to the main board (7) and the blower (5). The main board (7) can control the start and stop of the blower (5). At the same time, the main board (7) can control the rotation speed of the blower (5). A display control unit (4) is arranged on the fuselage (3). The main board (7) is connected to the display control unit (4) and can transmit information to the display control unit (4) for display.

2. The powered air-purifying respirator according to claim 1, characterized in that, A diversion cover (6) is arranged in the cavity of the fuselage (3). The diversion cover (6) corresponds to the ventilation hole and the exhaust hole. The blower (5) is arranged in the diversion cover (6).

3. The powered filtering air-supplying respirator according to claim 1, characterized in that, A poisonous gas sensor is arranged in the cavity of the fuselage (3). The poisonous gas sensor is connected to the main board (7). The poisonous gas sensor can detect the poisonous gas content at the exhaust hole and send the information to the main board (7).

4. The powered air-purifying respirator according to claim 1, characterized in that, An alarm is arranged on the fuselage (3). The alarm is connected to the main board (7).

5. The powered air-purifying respirator according to claim 1, wherein, The exhaust hole is connected to the mask intake pipe.

6. The powered air-purifying respirator according to claim 1, characterized in that, An air volume sensor is arranged in the cavity of the fuselage (3). The air volume sensor is connected to the main board (7). The air volume sensor can detect the air volume at the exhaust hole and send the information to the main board (7).

7. The powered air-purifying respirator according to claim 1, characterized in that, A binding strap is connected to the fuselage (3).

8. The powered air-purifying respirator according to claim 1, wherein, Several air inlet holes are opened on the bottom wall of the diversion shell (1).

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