CN216777769U

CN216777769U - Fire control respirator of convenient regulation bore

Info

Publication number: CN216777769U
Application number: CN202123314443.2U
Authority: CN
Inventors: 杨伟路
Original assignee: Nanjing Branch Of Mosaic Safety Equipment Co ltd
Current assignee: Nanjing Branch Of Mosaic Safety Equipment Co ltd
Priority date: 2021-12-27
Filing date: 2021-12-27
Publication date: 2022-06-21
Anticipated expiration: 2031-12-27

Abstract

The utility model discloses a fire-fighting respirator with a conveniently-adjusted caliber, which comprises an oxygen bottle and a protective mask, wherein a connecting pipe is fixedly connected to the air outlet end of the oxygen bottle, one end of the connecting pipe is fixedly connected with the air inlet end of the protective mask, an exhaust valve is fixedly arranged at the center of the protective mask, adjusting knobs are rotatably connected to two sides of the protective mask, a suction nozzle is fixedly arranged in the protective mask and fixedly connected with the connecting pipe, grooves are formed in two sides of the protective mask, and extrusion blocks are embedded in the two grooves. According to the utility model, the rotation of the adjusting knob drives the rotation of the threaded rod, the rotation of the threaded rod drives the movement of the limiting slide block, the movement of the limiting slide block drives the movement of the extrusion block, the two sides of the connecting pipe are extruded through the movement of the extrusion block, and the outlet caliber of the connecting pipe is adjusted through the extrusion of the connecting pipe, so that the breathing rate of fire fighters is adapted conveniently, and the use comfort of the fire fighters is improved.

Description

Fire control respirator of convenient regulation bore

Technical Field

The utility model relates to a fire-fighting respirator, in particular to a fire-fighting respirator with a caliber convenient to adjust, and belongs to the technical field of fire-fighting equipment.

Background

The fire-fighting respirators are also called air respirators and fire-fighting air respirators. The fire-fighting respirator is a positive pressure air respirator, is a self-sufficient open air respirator, is widely applied to departments such as fire fighting, chemical engineering, ships, petroleum, smelting, warehouses, laboratories, mines and the like, and is used for firemen or rescue personnel to safely and effectively extinguish fire, rescue and rescue work in various environments such as dense smoke, toxic gas, steam or oxygen deficiency and the like.

Present fire control respirator is unable size of adjusting suction nozzle department bore at the in-process that uses, influences fire fighter's travelling comfort in the use, and current discharge valve's filterability effect is relatively poor in addition, uses bacterium and smog in the air to get into the inside of protection casing easily for a long time, influences fire fighter's use, consequently needs design a convenient fire control respirator who adjusts the bore.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a fire-fighting respirator with an aperture convenient to adjust, and aims to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the oxygen cylinder is fixedly connected with a connecting pipe at the air outlet end of the oxygen cylinder, one end of the connecting pipe is fixedly connected with the air inlet end of the protective mask, an exhaust valve is fixedly installed at the center of the protective mask, adjusting knobs are rotatably connected to both sides of the protective mask, a suction nozzle is fixedly arranged inside the protective mask and fixedly connected with the connecting pipe, grooves are respectively formed in both sides of the protective mask, extrusion blocks are respectively embedded in the two grooves, one ends of the two extrusion blocks are in contact connection with both sides of the connecting pipe, limiting sliding grooves are respectively formed in the bottoms of the two grooves, limiting sliding blocks are respectively and slidably connected inside the two limiting sliding grooves, the bottoms of the two limiting sliding blocks are fixedly connected with the corners corresponding to the bottoms of the extrusion blocks, and threaded rods are respectively and rotatably connected inside the two limiting sliding grooves, the threaded rod is in threaded connection with the middle of the limiting sliding block, and one end of the threaded rod penetrates through the limiting sliding groove to be fixedly connected with the center of the adjusting knob.

As a preferred technical scheme of the utility model, the exhaust valve consists of a fixing ring, filter cotton, a one-way breathable film, an activated carbon adsorption block and a microporous filter block, the fixing ring is sleeved with the protective face mask, a fixing mechanism is arranged between the fixing ring and the protective face mask, and the filter cotton, the activated carbon adsorption block, the microporous filter block and the one-way breathable film are respectively embedded in the fixing ring.

As a preferred technical scheme, the fixing mechanism comprises two rotating rods and two convex blocks, limiting holes are formed in two sides of the outer wall of the fixing ring, a rectangular cavity is formed in the joint of the fixing ring and the protective mask, the rotating rods are rotatably connected inside the rectangular cavity, the convex blocks are fixedly arranged at one ends of the rotating rods, and the convex blocks are connected with the limiting holes in an embedded mode.

According to a preferable technical scheme of the utility model, eye protection glasses are fixedly arranged at the top of the front side of the protective mask, and a sealing strip is fixedly attached to the joint of the eye protection glasses and the protective mask.

As a preferable technical scheme of the utility model, elastic bands are fixedly connected to two sides of the protective mask.

In a preferred embodiment of the present invention, an air-permeable strap is fixed to a surface of the oxygen cylinder.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the fire-fighting respirator with the conveniently-adjusted caliber, the threaded rod is driven to rotate through rotation of the adjusting knob, the limiting slide block is driven to move through rotation of the threaded rod, the extrusion block is driven to move through movement of the limiting slide block, two sides of the connecting pipe are extruded through movement of the extrusion block, the outlet caliber of the connecting pipe is adjusted through extrusion of the connecting pipe, the fire-fighting respirator is convenient to adapt to the breathing rate of a fire fighter, and the use comfort of the fire fighter is improved.

2. According to the fire-fighting respirator with the conveniently-adjusted caliber, the exhaust valve is arranged on the front face of the protective face mask, the filter cotton, the activated carbon adsorption block, the microporous filter block and the one-way breathable film are arranged in the exhaust valve, so that the exhaled gas can be conveniently filtered, bacteria and smoke can be effectively prevented from entering the protective face mask to influence the breathing of fire fighters, meanwhile, the exhaust valve and the protective face mask are embedded through the lug and the limiting hole, the lug is controlled to rotate through the rotating rod, the exhaust valve is convenient to install and detach, and therefore the filter cotton, the activated carbon adsorption block and the microporous filter block can be conveniently replaced.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the internal structure of the face shield of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2;

fig. 4 is a schematic view of the internal structure of the exhaust valve of the present invention.

In the figure: 1. an oxygen cylinder; 2. a connecting pipe; 3. a protective mask; 4. eye protection glasses; 5. elastic bands; 6. adjusting a knob; 7. an exhaust valve; 701. a fixing ring; 702. filtering cotton; 703. a unidirectional breathable film; 704. an activated carbon adsorption block; 705. a microporous filter block; 8. a rotating rod; 9. a suction nozzle; 10. a groove; 11. extruding the block; 12. a limiting chute; 13. a threaded rod; 14. a limiting slide block; 15. a rectangular cavity; 16. a bump; 17. and a limiting hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the utility model provides a technical solution of a fire fighting respirator with conveniently adjustable caliber:

according to the figure 1-4, comprises an oxygen bottle 1 and a protective mask 3, the air outlet end of the oxygen bottle 1 is fixedly connected with a connecting pipe 2, one end of the connecting pipe 2 is fixedly connected with the air inlet end of the protective mask 3, the center of the protective mask 3 is fixedly provided with an exhaust valve 7, both sides of the protective mask 3 are rotatably connected with adjusting knobs 6, the interior of the protective mask 3 is fixedly provided with a suction nozzle 9, the suction nozzle 9 is fixedly connected with the connecting pipe 2, both sides of the protective mask 3 are provided with grooves 10, extrusion blocks 11 are embedded in the two grooves 10, one end of each extrusion block 11 is in contact connection with both sides of the connecting pipe 2, the bottom ends of the two grooves 10 are provided with limiting chutes 12, the interior of the two limiting chutes 12 is slidably connected with limiting slide blocks 14, the bottom ends of the two limiting slide blocks 14 are fixedly connected with the corners corresponding to the bottom ends of the extrusion blocks 11, the interior of the two limiting chutes 12 are rotatably connected with threaded rods 13, threaded rod 13 and limit slider 14's middle part threaded connection, limit chute 12 and adjust knob 6 center department fixed connection are passed to the one end of threaded rod 13, rotation through adjust knob 6 drives the rotation of threaded rod 13, the removal of rotating through threaded rod 13 and driving limit slider 14, the removal through limit slider 14 drives the removal of extrusion piece 11, the removal through extrusion piece 11 extrudees the both sides of connecting pipe 2, export bore through the extrusion adjusting connection pipe 2 to connecting pipe 2, be convenient for adapt to fire fighter's respiratory rate, improve the travelling comfort that fire fighter used.

According to the fig. 1, 3 and 4, the exhaust valve 7 is composed of a fixing ring 701, a filter cotton 702, a one-way permeable membrane 703, an activated carbon adsorption block 704 and a microporous filter block 705, the fixing ring 701 is sleeved with the protective face mask 3, a fixing mechanism is arranged between the fixing ring 701 and the protective face mask 3, the filter cotton 702, the activated carbon adsorption block 704, the microporous filter block 705 and the one-way permeable membrane 703 are respectively embedded in the fixing ring 701, the fixing mechanism comprises two rotating rods 8 and two lugs 16, both sides of the outer wall of the fixing ring 701 are respectively provided with a limiting hole 17, a rectangular cavity 15 is arranged at the joint of the fixing ring 701 and the protective face mask 3, the rotating rods 8 are rotatably connected in the rectangular cavity 15, one end of the rotating rod 8 is fixedly provided with the lug 16, the lug 16 is embedded with the limiting hole 17, and by the one-way permeable membrane 703, the activated carbon adsorption block 704 and the microporous filter block 705 which are arranged in the exhaust valve 7, effectively block bacteria and smoke on the outer wall.

According to the illustration of fig. 1 and 2, the front top of the protective mask 3 is fixedly provided with eye protection glasses 4, the connection part of the eye protection glasses 4 and the protective mask 3 is fixedly attached with a sealing strip, the sealing property of the connection part is ensured, the two sides of the protective mask 3 are fixedly connected with elastic bands 5, the surface of the oxygen cylinder 1 is fixedly provided with air permeable straps, and the straps of the fire fighter are comfortable.

When the fire-fighting respirator convenient for adjusting the caliber is used, firstly, the oxygen bottle 1 is manually carried behind the body, the protective mask 3 is manually worn on the face through the elastic band 5, when the caliber of an oxygen inlet needs to be adjusted, the adjusting knob 6 is manually rotated, the threaded rod 13 is driven to rotate through the rotation of the adjusting knob 6, the limit slide block 14 is driven to move through the rotation of the threaded rod 13, the extrusion block 11 is driven to move through the movement of the limit slide block 14, the caliber of the connecting pipe 2 is adjusted through the extrusion of the extrusion block 11 on the two sides of the connecting pipe 2, the breathing rate of a fire fighter is conveniently adapted, the comfort of the fire fighter is improved, the fire fighter exhausts through the exhaust valve 7 during exhalation, and meanwhile, the filter cotton 702 and the activated carbon adsorption block 704 which are arranged in the exhaust valve 7 are used for absorbing air, The microporous filter block 705 and the one-way breathable film 703 effectively obstruct outside bacteria and smoke, and the influence of the outside smoke on the breathing of firefighters is avoided.

In the description of the present invention, it is to be understood that the indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings and are only for convenience in describing the present invention and simplifying the description, but are not intended to indicate or imply that the indicated devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present invention.

In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly attached, detachably attached, or integrated; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The fire-fighting respirator with the caliber convenient to adjust comprises an oxygen bottle (1) and a protective mask (3) and is characterized in that a connecting pipe (2) is fixedly connected to the air outlet end of the oxygen bottle (1), one end of the connecting pipe (2) is fixedly connected with the air inlet end of the protective mask (3), an exhaust valve (7) is fixedly installed at the center of the protective mask (3), adjusting knobs (6) are rotatably connected to the two sides of the protective mask (3), a suction nozzle (9) is fixedly arranged inside the protective mask (3), the suction nozzle (9) is fixedly connected with the connecting pipe (2), grooves (10) are formed in the two sides of the protective mask (3), extrusion blocks (11) are embedded in the two grooves (10), one end of each extrusion block (11) is in contact connection with the two sides of the connecting pipe (2), a limiting sliding groove (12) is formed in the bottom end of each groove (10), two equal sliding connection in inside of spacing spout (12) has spacing slider (14), two the bottom of spacing slider (14) and the edge fixed connection who corresponds extrusion piece (11) bottom, two the inside of spacing spout (12) is all rotated and is connected with threaded rod (13), threaded rod (13) and the middle part threaded connection of spacing slider (14), the one end of threaded rod (13) is passed spacing spout (12) and is located fixed connection with the center of adjust knob (6).

2. A fire fighting respirator with an adjustable caliber as claimed in claim 1, wherein: discharge valve (7) comprise solid fixed ring (701), filter pulp (702), one-way ventilated membrane (703), active carbon adsorption piece (704) and microporous filter piece (705), gu fixed ring (701) establishes with protective face mask (3) cover and is connected, just gu be provided with fixed establishment between fixed ring (701) and protective face mask (3), gu the inside of fixed ring (701) is inlayed respectively and is equipped with filter pulp (702), active carbon adsorption piece (704), microporous filter piece (705) and one-way ventilated membrane (703).

3. A fire fighting respirator with an adjustable caliber as claimed in claim 2, wherein: fixed establishment includes two bull sticks (8) and two lug (16), spacing hole (17) have all been seted up to the both sides of the outer wall of solid fixed ring (701), gu fixed ring (701) has seted up rectangular cavity (15) with protective face mask (3) junction, the inside rotation in rectangular cavity (15) is connected with bull stick (8), the one end of bull stick (8) is fixed and is equipped with lug (16), lug (16) are inlayed with spacing hole (17) and are established and be connected.

4. A fire fighting respirator with an adjustable caliber as claimed in claim 1, wherein: the safety helmet is characterized in that eye protection glasses (4) are fixedly arranged at the top of the front side of the protective face mask (3), and sealing strips are fixedly attached to the joints of the eye protection glasses (4) and the protective face mask (3).

5. A fire fighting respirator with an adjustable caliber as claimed in claim 1, wherein: elastic bands (5) are fixedly connected to two sides of the protective face mask (3).

6. A fire fighting respirator with an adjustable caliber as claimed in claim 1, wherein: the surface of the oxygen bottle (1) is fixedly provided with a breathable brace.