A reusable, split face respirator with a protection system

Abstract

The utility model provides a split smoke mask with protection system and can be reused, belongs to the fire control field, the mask is connected with the protection system through the water cooling pipe, the protection system includes filter jar and backflush air bag, filter jar is sequentially provided with dust collection space, ceramic membrane, filter smoke layer and adsorbent from bottom to top, backflush air bag is arranged in the outer periphery of filter jar, and filter jar and backflush air bag below are connected with air inlet pipe, backflush air bag top is also provided with the communicating part, the communicating part leads to filter jar top, filter jar below is provided with exhaust pipe, and backflush air bag communicating part is communicated with filter jar top, and the valve is arranged on water cooling pipe, air inlet pipe and exhaust pipe, air inlet pipe is connected with air pump, and air pump is provided with automatic cleaning control circuit and automatic cleaning button, can play high temperature resistance, reusable, timely cleaning can prevent poison, dustproof, protects personnel safety evacuation fire scene, saves life.

Description

Technical Field

[0001] This invention relates to a smoke mask, and more particularly to a reusable, split-type smoke mask with a protective system, belonging to the field of fire protection. Background Technology

[0002] At a fire scene, preventing the inhalation of dust and smoke is crucial, especially smoke, as it not only obstructs vision but may also contain toxic gases. Prolonged inhalation of these toxic gases can be fatal. To ensure safe evacuation and the smooth progress of firefighting efforts, effective measures are essential to prevent smoke inhalation. Smoke masks are indispensable, typically referring to filtering fire respirators, also known as smoke masks. These masks are personal protective respiratory devices specifically designed for fire escape, providing protection for the wearer's respiratory organs, eyes, and facial skin during a fire. Lightweight filter canisters or filter elements effectively block smoke, allowing individuals to escape the fire scene quickly and saving lives.

[0003] Figure 3 This is a schematic diagram of a representative existing face mask. The face mask includes an air outlet 31, straps 32, a filter cartridge 33, a breathing mask 34, and a sealing plug 35. The function of the filter cartridge 33 is to purify polluted toxic air. It contains a filter screen and is unusable once clogged; it is a disposable product.

[0004] However, at a fire scene, in addition to smoke, as the fire progresses, there will be damage to buildings, and dust, ashes from burning materials will fill the scene. During the escape process, dust or soot may even adhere to the smoke filter layer, making the smoke mask unable to breathe or reducing its ventilation effect. Existing smoke mask filters generally have the disadvantages of not being able to be washed or reused, and cannot be cleaned during use. This will cause breathing difficulties for escapees and may even have adverse effects on them.

[0005] Therefore, developing a new generation of smoke masks is a major issue in the field of fire protection. Summary of the Invention

[0006] In view of the shortcomings of existing smoke masks, such as poor filtration effect, inability to be washed, and inability to be reused, this invention provides a reusable split smoke mask with a protective system. Its purpose is to be heat resistant, reusable, and washable in time to prevent poisoning and dust, protect personnel from fire scene and save lives.

[0007] The technical solution of the present invention is: a reusable split smoke mask with a protective system, comprising a mask, wherein the mask is connected to a protective system via a water-cooling pipe, the protective system comprising a filter canister and a backflush airbag, wherein the filter canister is provided with a dust collection space, a ceramic membrane, a smoke filter layer and an adsorbent in sequence from bottom to top, the backflush airbag is disposed on the outer periphery of the filter canister, an air inlet pipe is connected to the bottom of the filter canister and the backflush airbag, a connecting part is provided above the backflush airbag leading to the top of the filter canister, an exhaust pipe is provided below the filter canister, the connecting part of the backflush airbag is connected to the top of the filter canister, valves are provided on the water-cooling pipe, the air inlet pipe and the exhaust pipe, an air pump is connected to the air inlet pipe, and an automatic cleaning control circuit and an automatic cleaning button are provided in the air pump; furthermore, the mask comprises a mask body, eye windows, a communication device, a breathing valve and earmuffs;

[0008] Furthermore, an air pump is installed on the air inlet pipe, and the air pump is equipped with a battery. A three-way pipe with one inlet and two outlets is installed on the air inlet pipe after the air pump. The outlet side of the three-way pipe is connected to the filter canister air inlet pipe and the air bladder air inlet pipe, respectively. An air inlet valve and an inflation valve are respectively installed on the filter canister air inlet pipe and the air bladder air inlet pipe. A control circuit board is fixed around the air pump. The control circuit board is connected to the normally open valve, the exhaust valve, the air inlet valve, the inflation valve, the air pump, and the automatic cleaning button. A fire-resistant insulation layer is installed around the control circuit board. Furthermore, an exhaust pipe is also installed below the filter canister. An exhaust valve is installed on the exhaust pipe. The exhaust valve is an automatically opening valve.

[0009] Furthermore, a high-temperature resistant water cup is threadedly connected to the water-cooling pipe, the outlet of the high-temperature resistant water cup is connected to the water-cooling pipe, and a normally open valve is installed on the water-cooling pipe.

[0010] Furthermore, the protective system is equipped with a strap with a buckle, which is fastened around the waist of the person escaping.

[0011] Furthermore, a pressure valve is installed on the connecting part between the upper part of the backflush airbag and the upper part of the filter tank. The opening pressure of the exhaust valve is greater than that of the pressure valve by 0.1 MPa, the pressure of the pressure valve is less than the pressure resistance pressure of the backflush airbag, and the pressure resistance pressure of the backflush airbag is greater than the pressure valve setting pressure by 0.5 MPa or more.

[0012] Furthermore, the mask, air intake pipe, exhaust pipe, water cooling pipe, filter canister, and the ceramic membrane therein are made of high-temperature resistant material.

[0013] A ventilation and backflushing method for a reusable, protective, split-type smoke mask, wherein the water cooling pipe is open and the inlet and outlet valves are closed before use, and the ventilation and backflushing method comprises the following steps:

[0014] 1) In case of fire, put on the mask, fasten it around the waist of the person escaping, and turn on the air pump.

[0015] 2) Gas enters the mask through the air inlet pipe of the filter canister, the filter canister, and the water cooling pipe, providing fresh air for the escapee to breathe;

[0016] 3) If you have difficulty exhaling and need to backflush, press the automatic cleaning button;

[0017] The control circuit controls and implements the following actions:

[0018] (1) Automatically close the normally open valve, open the airbag inflation valve, inflate the backflush airbag, and automatically open the pressure valve when the pressure inside the backflush airbag reaches the pressure set by the pressure valve.

[0019] (2) When the pressure inside the backflush airbag and the filter can reaches the pressure of the exhaust valve, the exhaust valve will open automatically, and the dust or soot in the dust collection space below the filter can will be discharged along the exhaust pipe. After several consecutive times, the dust or soot in the dust collection space below the filter can will be cleaned.

[0020] (3) The air intake valve on the recoil airbag is automatically closed, and the normally open valve on the water cooling pipe is automatically opened for normal use.

[0021] This invention, by connecting a separate protective mask including a filter canister and a backdraft airbag to the face shield, ensures that the air breathed by the escapee is non-toxic and harmless. By placing a backdraft airbag around the filter canister and connecting an air pump and air valve to the air intake pipe, air can be supplied to the face shield by switching the opening and closing of the air intake valve. Alternatively, the backdraft airbag can be inflated by opening the air intake valve and closing the normally open valve. When the pressure in the backdraft airbag reaches a set pressure, a pressure valve is opened to allow gas from the backdraft airbag to enter the filter canister in the opposite direction of the air intake. When the pressure in the filter canister reaches a certain level... The automatic opening of the exhaust valve, under pressure, blows dust or soot from the dust collection space below the filter canister out along the exhaust pipe, ensuring the filter canister is not clogged. Reverse air purging is applied to the filter canister. The use of high-temperature resistant materials in the mask, air inlet pipe, exhaust pipe, water cooling pipe, filter canister, and ceramic membrane ensures usability under high-temperature conditions and facilitates smooth airflow. This smoke mask with a protective system is heat-resistant, reusable, and can be cleaned promptly to prevent poisoning and dust, ensuring safe evacuation from fire scenes and saving lives. Attached Figure Description

[0022] Figure 1 A front view of the present invention.

[0023] Figure 2 A schematic diagram of the bottom structure of the filter tank and the backflush airbag.

[0024] Figure 3 A schematic diagram of a representative existing face mask.

[0025] Labeling Explanation: 10-Face mask, 11-Water cooling pipe, 12-High temperature resistant water cup, 13-Normally open valve, 14-Connecting part, 15-Pressure valve, 16-Filter canister, 17-Wearing strap, 18-Lock, 19-Backdraft airbag, 20a-Dust collection space, 20b-Ceramic membrane, 20c-Smoke filter layer, 20d-Absorbent, 21-Exhaust pipe, 22-Inlet pipe, 22a-Filter canister inlet pipe, 22b-Airbag inlet pipe, 23-Air pump, 24-Exhaust valve, 25-Inlet valve, 26-Inflation valve, 27-Eye window, 28-Earm cover, 29-Breathing valve, 31-Exhaust cylinder, 32-Strap, 33-Filter box, 34-Breathing mask, 35-Sealing plug. Detailed Implementation

[0026] The specific technical solutions of the present invention will be described in detail below with reference to the accompanying drawings.

[0027] The technical solution of this invention is: a reusable, split-type smoke mask with a protective system. Figure 1 This is a front structural diagram of the present invention. Figure 2 A schematic diagram of the bottom structure of the filter canister 16 and the backflush airbag 19 is shown, including a face mask 10. The face mask 10 is connected to a protective system via a water-cooling pipe 11. The protective system includes the filter canister 16 and the backflush airbag 19. The filter canister 16 is provided with a dust collection space 20a, a ceramic membrane 20b, a smoke filter layer 20c, and an adsorbent 20d from bottom to top. The backflush airbag 19 is located on the outer periphery of the filter canister 16. An air inlet pipe 22 is connected to the bottom of the filter canister 16 and the backflush airbag 19. A connecting part 14 is also provided above the backflush airbag 19, leading to the top of the filter canister 16. An exhaust pipe 21 is provided below the filter canister 16. The connecting part 14 of the backflush airbag 19 is connected to the top of the filter canister 16. Valves are provided on the water-cooling pipe 11, the air inlet pipe 22, and the exhaust pipe 21. An air pump 23 is connected to the air inlet pipe 22. An automatic cleaning control circuit and an automatic cleaning button are provided inside the air pump 23.

[0028] The mask 10 includes a mask body, eye windows 27, earmuffs 28, breathing valves 29, and a communication device.

[0029] In this embodiment, the ceramic membrane 20b is a high-temperature resistant product, the smoke filter layer 20c contains activated carbon, and the adsorbent 20d uses a chemical adsorbent. The technology and materials used are all existing and are fire-resistant. Additionally, the air inlet pipe 22 and exhaust pipe 21 are also made of fire-resistant materials. Besides being fire-resistant, the water-cooling pipe 11 primarily cools the gas to prevent inhalation of high-temperature gases that could damage the trachea and lungs.

[0030] The mouth and nose section of the mask shell forms an air outlet. The outlet of the air outlet is connected to the external space through an exhalation valve that flips outward during exhalation. The inhaled gas is transported into the internal space of the mask by an air pump. The inhaled gas is filtered by a ceramic membrane 20b to remove smoke and dust, and activated carbon and adsorbent 20d to remove harmful components, which can prevent smoke from damaging the lungs and other respiratory systems.

[0031] An air pump 23 is installed on the air inlet pipe 22. The air pump 23 is equipped with a battery. A three-way pipe with one inlet and two outlets is installed on the air inlet pipe 22 after the air pump 23. The outlet of the three-way pipe is connected to the filter canister air inlet pipe 22a and the airbag air inlet pipe 22b respectively. An air inlet valve 25 and an inflation valve 26 are respectively installed on the filter canister air inlet pipe 22a and the airbag air inlet pipe 22b. A control circuit board is fixed around the air pump. The control circuit board is connected to the normally open valve 13, the pressure valve 15, the exhaust valve 24, the air inlet valve 25, the inflation valve 26, the air pump 23, and the automatic cleaning button. The control circuit is surrounded by a fire-resistant insulation layer.

[0032] An exhaust pipe 21 is provided below the filter tank 16, and an exhaust valve 24 is provided on the exhaust pipe 21. The exhaust valve 24 is an automatically opening valve.

[0033] A high-temperature resistant water cup 12 is threadedly connected to the water cooling pipe 11. The outlet of the high-temperature resistant water cup 12 is connected to the water cooling pipe 11. A normally open valve 13 is installed on the water cooling pipe 11.

[0034] The protective system is equipped with a strap 17, with buckles 18 at both ends of the strap 17 and a length adjustment buckle in the middle. The strap 17 is fastened around the waist of the person escaping.

[0035] A pressure valve 15 is provided on the connecting part 14 above the backflush airbag 19 and above the filter tank 16. The opening pressure of the exhaust valve 24 is greater than 0.1 MPa of the pressure valve 15. The pressure of the pressure valve 15 is less than the pressure resistance of the backflush airbag 19. The pressure resistance of the backflush airbag 19 is greater than 0.5 MPa of the set pressure of the pressure valve 15.

[0036] The face mask 10, air inlet pipe 22, exhaust pipe 21, water cooling pipe 11, filter canister 16, and the ceramic membrane 20b therein are made of high temperature resistant material.

[0037] Normally open valve 13, pressure valve, air pump 15, exhaust valve 24, air inlet valve 25, and air filling valve 26 are all electromagnetic control valves.

[0038] A ventilation and backflushing method for a reusable smoke mask 10 with a protective system, using the aforementioned reusable smoke mask 10 with a protective system, wherein before use, the water cooling pipe 11 is in the open state, and the air inlet valve 25 and the exhaust valve 24 are in the closed state, the steps of the ventilation and backflushing method are as follows:

[0039] 1) In case of fire, the general puts on the face mask 10, and the belt 17 is fastened to the waist of the person escaping through the buckle 18. The power switch of the air pump 23 is turned on.

[0040] 2) The gas enters the mask 10 through the air inlet pipe 22 of the filter canister 16, the filter canister 16, and the water cooling pipe 11, providing fresh air for the escapee to breathe.

[0041] 3) When backflush is needed due to difficulty exhaling, press the automatic cleaning button; the control circuit will then perform the following actions:

[0042] (1) Automatically close the normally open valve 13, open the airbag inflation valve, inflate the back airbag 19, and automatically open the pressure valve 15 when the pressure inside the back airbag 19 reaches the pressure set by the pressure valve 15.

[0043] (2) When the pressure in the backflush airbag 19 and the filter canister 16 reaches the pressure of the exhaust valve 24, the exhaust valve 24 opens automatically, and the dust or soot in the dust collection space 20a below the filter canister 16 is discharged along the exhaust pipe 21. After several consecutive times, the dust or soot in the dust collection space 20a below the filter canister 16 is cleaned.

[0044] (3) Automatically close the air intake valve 25 on the recoil airbag 19 and automatically open the normally open valve 13 on the water cooling pipe 11 to enter normal use.

[0045] This invention, by connecting a split protective mask including a filter canister 16 and a backdraft airbag 19 to the mask 10, ensures that the breathing air of the escapee is non-toxic and harmless. By setting the backdraft airbag 19 around the filter canister 16 and connecting an air pump 23 and an air intake valve 25 to the air intake pipe 22, air can be supplied to the mask 10 by switching the opening and closing of the air intake valve 25. Alternatively, air can be supplied to the backdraft airbag 19 by opening the air intake valve 25 and closing the normally open valve 13. The pressure in the backdraft airbag 19 can be increased to a set pressure. The pressure valve 15 is opened to allow the gas in the backflush airbag 19 to enter the filter canister 16 in the opposite direction of the air intake. When the pressure in the filter canister 16 reaches a certain level, the exhaust valve 24 is automatically opened. Under the pressure, the dust or soot in the dust collection space 20a below the filter canister 16 is blown out along the exhaust pipe 21, ensuring that the filter canister 16 is not blocked. The filter canister 16 is purged by reverse air blowing. The mask 10, air intake pipe 22, exhaust pipe 21, water cooling pipe 11, filter canister 16 and ceramic membrane 20b are made of high-temperature resistant materials, which can ensure use under high-temperature conditions and facilitate smooth airflow. By using this smoke mask 10 with a protective system, it can withstand high temperatures, be reused, and be cleaned in time to prevent poisoning and dust, protect personnel from evacuation from the fire scene and save lives.

Claims

1. A reusable, split face, smoke hood with a protection system, comprising a face shield, characterized in that: The mask is connected to a protective system via a water-cooling pipe. The protective system includes a filter canister and a backwash airbag. The filter canister has, from bottom to top, a dust collection space, a ceramic membrane, a smoke filter layer, and an adsorbent. The backwash airbag is located on the outer periphery of the filter canister. An air inlet pipe is connected to the bottom of the filter canister and the backwash airbag. A connecting part is also provided above the backwash airbag, leading to the top of the filter canister. An exhaust pipe is provided below the filter canister. The connecting part of the backwash airbag is connected to the top of the filter canister. Valves are provided on the water-cooling pipe, the air inlet pipe, and the exhaust pipe. An air pump is connected to the air inlet pipe. The air pump contains an automatic cleaning control circuit and an automatic cleaning button.

2. A reusable, split face smoke mask with a protection system according to claim 1, characterized in that: The mask includes a mask body, eye windows, a communication device, a breathing valve, and earmuffs.

3. A reusable, split face smoke mask with a protection system according to claim 1, wherein: An air pump is installed on the air inlet pipe, and the air pump is equipped with a battery. A three-way pipe with one inlet and two outlets is installed on the air inlet pipe after the air pump. The outlet side of the three-way pipe is connected to the filter canister air inlet pipe and the air bladder air inlet pipe respectively. An air inlet valve and an inflation valve are respectively installed on the filter canister air inlet pipe and the air bladder air inlet pipe. The air pump is equipped with a rechargeable battery. A control circuit board is fixed around the air pump. The control circuit board is connected to the normally open valve, pressure valve, exhaust valve, air inlet valve, inflation valve, air pump, and automatic cleaning button. A fire-resistant insulation layer is installed around the control circuit board.

4. The reusable, split face smoke mask with a protection system of claim 1, wherein: An exhaust pipe is also provided below the filter tank, and an exhaust valve is provided on the exhaust pipe. The exhaust valve is an automatically opening valve.

5. The reusable, split face smoke mask with a protection system of claim 1, wherein: A high-temperature resistant water cup is threaded onto the water-cooling pipe, and the outlet of the high-temperature resistant water cup is connected to the water-cooling pipe. A normally open valve is installed on the water-cooling pipe.

6. A reusable split smoke mask with a protective system according to claim 1, characterized in that: The protective system is equipped with a strap with a buckle, which is fastened around the waist of the person escaping.

7. A reusable split smoke mask with a protective system according to claim 1, characterized in that: A pressure valve is installed on the connecting part between the upper part of the backflush airbag and the upper part of the filter tank. The opening pressure of the exhaust valve is 0.1 MPa greater than that of the pressure valve. The pressure of the pressure valve is less than the pressure resistance pressure of the backflush airbag. The pressure resistance pressure of the backflush airbag is more than 0.5 MPa greater than the set pressure of the pressure valve.

8. A reusable split smoke mask with a protective system according to claim 1, characterized in that: The mask, air intake pipe, exhaust pipe, water cooling pipe, filter canister, and the ceramic membrane therein are made of high-temperature resistant material.

9. A ventilation and backflushing method for a reusable, protective, split-type smoke mask, comprising the reusable, protective, smoke mask according to any one of claims 1-5, wherein the water cooling pipe is open and the inlet valve and exhaust valve are closed before use, and the ventilation and backflushing method comprises the following steps: 1) In case of fire, put on the mask, fasten it around the waist of the person escaping, and turn on the air pump. 2) Gas enters the mask through the air inlet pipe of the filter canister, the filter canister, and the water cooling pipe, providing fresh air for the escapee to breathe; 3) When backflush is needed due to difficulty exhaling, press the automatic cleaning button; the control circuit will then perform the following actions: (1) Automatically close the normally open valve, open the airbag inflation valve, inflate the backflush airbag, and automatically open the pressure valve when the pressure inside the backflush airbag reaches the pressure set by the pressure valve. (2) When the pressure inside the backflush airbag and the filter can reaches the pressure of the exhaust valve, the exhaust valve will open automatically, and the dust or soot in the dust collection space below the filter can will be discharged along the exhaust pipe. After several consecutive times, the dust or soot in the dust collection space below the filter can will be cleaned. (3) The air intake valve on the recoil airbag is automatically closed, and the normally open valve on the water cooling pipe is automatically opened for normal use.

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