Filtering type fire-fighting self-rescue respirator

Abstract

The utility model discloses a filtering type fire-fighting self-rescue respirator, and relates to the technical field of fire-fighting equipment. The medical respirator comprises a canister set, a rubber mask, a clamping belt, a protective hood set and a breather valve set, the rubber mask, the protective hood set and the breather valve set are connected with the canister set in a sealed mode, and the clamping belt is connected with the protective hood set in a clamped mode. The respirator is fixed to the face of a wearer under the action of the rubber mask and the clamping belt, generated toxic smoke is filtered through the canister set, clean air is generated for the wearer to breathe, meanwhile, the breathing valve set is used for the wearer to breathe, the protection time of the respirator is long, and the respirator has the multiple protection functions of gas defense, fire prevention, heat radiation prevention, smoke prevention and the like. Meanwhile, the sealing performance is good, the respirator is suitable for various surface shapes of adults, the smoke filtering efficiency is not smaller than 95%, carbon monoxide, toxic smoke and toxic fog can be filtered, and compared with a respirator in the prior art, the protection performance and the smoke filtering performance of the respirator are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to fire fighting equipment technical field, concretely is a filter formula fire fighting self-rescue respirator. BACKGROUND

[0002] The respirator is a kind of self-provided open air respirator, also called gas storage type gas mask, sometimes also called fire mask, is widely used in fire fighting, chemical industry, ship, petroleum, smelting, warehouse, laboratory, mine department, for fireman or rescue personnel in thick smoke, toxic gas, steam or hypoxia etc. Various environments, safe and effective to carry out fire extinguishing, rescue and rescue work;

[0003] However, the fire self-rescue respirator in prior art still has some defects:

[0004] The self-rescue respirator in prior art is when facing toxic smoke generated by fire, the protection type of respirator to toxic smoke is relatively single, the protection time is short, and the smoke filtering efficiency is low. UTILITY MODEL CONTENT

[0005] To solve the above problems, the purpose of the utility model is to provide a filter formula fire fighting self-rescue respirator.

[0006] To solve the above technical problems, the utility model adopts the following technical scheme: a filter formula fire fighting self-rescue respirator, the respirator includes filter can group, rubber face guard, clamping belt, protective head cover group and breathing valve group, the rubber face guard, protective head cover group and breathing valve group are sealedly connected between filter can group, the clamping belt is clamped between protective head cover group;

[0007] The filter can group is composed of medicine jar, upper cover, upper bearing plate, lower bearing plate, dust filter felt, drying agent, catalyst, smoke filter element and sealing plate;

[0008] The protective head cover group is composed of head cover main body, headband, release buckle, lens and neck cover;

[0009] The breathing valve group is composed of valve seat, valve cover and valve sheet.

[0010] Preferably, the protective head cover group is made of reflective material.

[0011] Preferably, the quality of filter can group, rubber face guard, clamping belt, protective head cover group and breathing valve group is less than or equal to 1000g.

[0012] Preferably, the medicine tank and the upper cover are made of 430 stainless steel, the upper bearing plate and the lower bearing plate are made of 08F steel, the dust filter is made of aluminum carbonate fiber, the drying agent is any one of activated carbon and calcium chloride, the catalyst is any one of manganese oxide and copper oxide, the smoke filter element is polypropylene fiber, and the sealing plate is made of rubber.

[0013] Preferably, the head cover body is made of composite aluminum foil cloth and cotton cloth treated by flame retardation, the headband is made of cotton fabric treated by flame retardation, the release buckle sliding buckle shaft and the sliding buckle cylinder slide with each other, the lens is made of any one of polycarbonate transparent sheet and PVC transparent sheet, and the neck cover is made of cotton elastic band.

[0014] Preferably, the clamping belt is made of 430 stainless steel.

[0015] Compared with the prior art, the respirator has the beneficial effects that:

[0016] 1. In the respirator, the rubber face mask and the clamping belt are fixed on the face of a wearer, toxic smoke is filtered by the filter tank group, relatively clean air is provided for the wearer to breathe, the breathing valve group is used for the wearer to breathe, the respirator has a long protection time, and has the functions of anti-toxic, anti-fire, anti-thermal radiation, anti-smoke, and multiple protection, and has good sealing performance and is suitable for various face shapes of adults.

[0017] 2. In the respirator, the smoke filtering efficiency is not less than 95%, and carbon monoxide, toxic smoke and toxic mist can be filtered, and compared with the respirator in the prior art, the protection performance and the smoke filtering performance of the respirator are improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0019] Figure 1 It is a whole structure schematic view of the filter type fire-fighting self-rescue respirator.

[0020] Figure 2 It is a structure schematic view of the filter tank group.

[0021] Figure 3 It is a structure schematic view of the upper cover.

[0022] Figure 4 This is a schematic diagram of the structure of the dust filter felt of this utility model.

[0023] Figure 5 This is a schematic diagram of the structure of the smoke filter element of this utility model.

[0024] Figure 6 This is a schematic diagram of the structure of the protective headgear assembly of this utility model.

[0025] Figure 7 This is a schematic diagram of the sliding shaft and sliding cylinder of the release buckle of this utility model.

[0026] Figure 8 This is a schematic diagram of the neck brace of this utility model.

[0027] Figure 9 This is a schematic diagram of the structure of the breathing valve assembly of this utility model.

[0028] In the diagram: 1. Filter canister assembly; 2. Rubber face mask; 3. Clamping strap; 4. Protective headgear assembly; 5. Breathing valve assembly; 11. Medicine canister; 12. Top cover; 13. Upper support plate; 14. Lower support plate; 15. Dust filter felt; 16. Desiccant; 17. Catalyst; 18. Smoke filter element; 19. Sealing plate; 41. Headgear body; 42. Head strap; 43. Release buckle; 44. Lens; 45. Neck glove; 51. Valve seat; 52. Valve cover; 53. Valve plate. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Example: Figures 1-9 As shown, this utility model provides a filtering fire self-rescue respirator. The respirator includes a filter canister assembly 1, a rubber mask 2, a strap 3, a protective headgear assembly 4, and a breathing valve assembly 5. The rubber mask 2, the protective headgear assembly 4, and the breathing valve assembly 5 are sealed to the filter canister assembly 1. The rubber mask 2 covers the mouth, nose, and chin. The rubber mask 2 is a rubber product that is suitable for adults and conforms to the shape of the human face. The rubber mask 2 has a Shore hardness of 51 to 65 degrees, a smooth, beautiful, and clean surface, and is free from pores, cracks, deformation, defects, burrs, etc., and has no unpleasant odor. The strap 3 is snapped into the protective headgear assembly 4. The strap 3 is made of 430 stainless steel. The protective headgear assembly 4 is made of reflective material. The mass of the filter canister assembly 1, rubber mask 2, strap 3, protective headgear assembly 4, and breathing valve assembly 5 is ≤1000g.

[0031] The filter canister group 1 is composed of a medicine canister 11, an upper cover 12, an upper supporting plate 13, a lower supporting plate 14, a dust filter felt 15, a drying agent 16, a catalyst 17, a smoke filter element 18 and a sealing plate 19. The medicine canister 11 and the upper cover 12 are made of 430 stainless steel. The inner diameter of the medicine canister 11 is 92, positive 0.2 mm, and the height is 45 mm. The outer diameter of the upper cover 12 is 92, negative 0.2 mm. The upper supporting plate 13 and the lower supporting plate 14 are made of 08F steel. The outer diameter of the upper supporting plate 13 is 90, positive 0.1 mm, and the height is 8 mm. The outer diameter of the lower supporting plate 14 is 90, positive 0.1 mm, and the height is 5 mm. The dust filter felt 15 is made of aluminum carbonate fiber felt. The outer diameter of the dust filter felt 15 is 84.5 mm, and the thickness is 0.3 mm. The drying agent 16 is any one of activated carbon and calcium chloride. The outer diameter of the drying agent 16 is 2.5 mm, and the length is 3-4 mm. The catalyst 17 is any one of manganese oxide and copper oxide. The outer diameter of the catalyst 17 is 0.8-1 mm, and the length is 3-4 mm. The smoke filter element 18 is polypropylene fiber. The outer diameter of the smoke filter element 18 is 82.2 mm, and the height is 11.5 mm. The sealing plate 19 is made of rubber. By setting the drying agent 16 and the catalyst 17, the time weighted average value of carbon monoxide transmission concentration in any single 5 min process within the rated protection time is not greater than 200 ml / cubic, the filtering efficiency of the product to smoke is not less than 95%, the protection time for removing carbon monoxide smoke and other harmful gases is greater than 30 min, the inhalation temperature is lower than 65℃, and the inhalation resistance is lower than 800 pa.

[0032] The protective head cover group 4 is composed of a head cover body 41, a headband 42, a release buckle 43, a lens 44 and a neck cover 45. The head cover body 41 is made of composite aluminum foil cloth and cotton cloth treated by flame retardation. The headband 42 is made of cotton fabric belt treated by flame retardation. The release buckle 43 is composed of a sliding buckle shaft and a sliding buckle cylinder. The lens 44 is made of any one of polycarbonate transparent sheet and PVC transparent sheet. The thickness of the lens 44 is 0.4 mm, the length is 205 mm, the width is 110 mm, and the light transmittance is greater than or equal to 85%. The neck cover 45 is made of cotton elastic belt.

[0033] The breathing valve group 5 is composed of a valve seat 51, a valve cover 52 and a valve plate 53.

[0034] Working principle: When a fire occurs, toxic smoke is generated. The rubber face mask 2 is worn on the face of the wearer. The breathing device is fixed on the face of the wearer by the clasp 3, and is used for the wearer to escape when a fire occurs.

[0035] The generated toxic smoke is filtered by the filter canister group 1 to produce relatively clean air for human respiration. At the same time, the breathing valve group 5 is used for the wearer to breathe. During the wearing process, the inhalation resistance is not greater than 800 pa, and the exhalation resistance is not greater than 300 pa.

[0036] It will be apparent to those skilled in the art that various modifications and variations can be made to the present application without departing from the spirit or scope of the application. Thus, it is intended that the present application cover modifications and variations of this application provided they come within the scope of the appended claims and their equivalents.

Claims

1. A filtering-type, self-contained breathing apparatus for fire fighting, characterized in that, The respirator comprises a filter canister group (1), a rubber face mask (2), a clasp (3), a protective head cover group (4) and a breathing valve group (5), the rubber face mask (2), the protective head cover group (4) and the breathing valve group (5) are sealingly connected with the filter canister group (1), and the clasp (3) is clasp-connected with the protective head cover group (4); The filter canister group (1) is composed of a medicine canister (11), an upper cover (12), an upper supporting plate (13), a lower supporting plate (14), a dust filter felt (15), a drying agent (16), a catalyst (17), a smoke filter element (18) and a sealing plate (19); The protective head cover group (4) is composed of a head cover main body (41), a head band (42), a release buckle (43), a lens (44) and a neck cover (45); The breathing valve group (5) is composed of a valve seat (51), a valve cover (52) and a valve sheet (53).

2. A filtering, self-contained breathing apparatus for fire fighting as defined in claim 1, characterized in that The protective head cover group (4) is made of a light-reflecting material.

3. A filtering, self-contained breathing apparatus for fire fighting as defined in claim 1, wherein The mass of the filter canister group (1), the rubber face mask (2), the clasp (3), the protective head cover group (4) and the breathing valve group (5) is less than or equal to 1000g.

4. The filtering, self-contained breathing apparatus for fire fighters of claim 1 wherein, The medicine canister (11) and the upper cover (12) are made of 430 stainless steel, the upper supporting plate (13) and the lower supporting plate (14) are made of 08F steel, the dust filter felt (15) is made of aluminum carbonate fiber felt, the drying agent (16) is any one of activated carbon and calcium chloride, the catalyst (17) is any one of manganese oxide and copper oxide, the smoke filter element (18) is polypropylene fiber, and the sealing plate (19) is made of rubber.

5. The filtering, self-contained breathing apparatus for fire fighters of claim 1 wherein, The head cover main body (41) is made of composite aluminum foil cloth and cotton cloth after flame-retardant treatment, the head band (42) is made of cotton fabric after flame-retardant treatment, the release buckle (43) is slidably connected with a buckle shaft and a buckle cylinder, the lens (44) is made of any one of polycarbonate transparent sheet and PVC transparent sheet, and the neck cover (45) is made of cotton elastic band.

6. A filtering type of fire service self-rescue respirator according to claim 1, wherein The clasp (3) is made of 430 stainless steel.

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