CN211273237U - A firefighter's fresh air helmet - Google Patents

Abstract

The utility model discloses a firefighter's new trend helmet, including helmet and air respirator, the helmet includes the helmet body, rotatory face guard and support, and is equipped with the strengthening rib at the top outer wall middle part of the helmet body, rotatory face guard passes through the hinge fastening in the one end outer wall both sides of the helmet body, the support passes through the bolt fastening on one side outer wall of keeping away from the rotatory face guard of the helmet body, air respirator is including wearing face guard, air duct and breathing box, and the outer wall an organic whole of wearing the face guard is connected with the trachea connector, the air duct is pegged graft on the inner wall of trachea connector. The utility model discloses filter smoke and dust and partial toxic gas in the air of fire scene, in carrying fire fighter's protective mask with filtering back pure air, form a local pressure-fired environment in the protective mask, prevent that the outside from containing in smoke and dust and toxic gas enter into the face guard, breathe and provide the protection with the eye to the fire fighter, the helmet body is semi-open environment, can not produce great influence to fire fighter's language exchange.

Description

A firefighter's fresh air helmet

technical field

The utility model relates to the technical field of fire fighting helmets, in particular to a fresh air helmet for firefighters.

Background technique

After a fire, a large amount of smoke and toxic and harmful gases are produced due to the combustion. If firefighters do not implement protection, these toxic smoke and dust will enter the body through the nose and mouth, which will cause damage to the firefighter's respiratory system. , At the same time, toxic and harmful gases will also cause damage to the eyes of firefighters.

Air respirator is suitable for firefighters to use in toxic or harmful gas environment, harmful substances such as smoke and dust, and oxygen deficiency, etc., and can provide effective respiratory protection for firefighters. However, at present, most of the air respirators are used in relatively harsh environments, such as entering the fire scene, and are rarely used in general fire fighting. At the same time, wearing an air respirator also has short air supply time (about 30min), inconvenient observation and communication, and heavy weight (about 10kg) that affects movement.

Wearing a mask is one of the effective measures to protect these smoke and dust, but one of the disadvantages is that firefighters have to fight fire fighting on the fire site, which is a high-intensity physical exercise, and the breathing rate and breathing intensity need to be accelerated, and wearing The breathing resistance generated by masks will make firefighters feel more uncomfortable; secondly, wearing masks will have a greater impact on the language communication between firefighters, which is not conducive to fire field communication and combat. From the actual situation, firefighters also use fewer masks on the fire scene.

Utility model content

The purpose of the utility model is to propose a fresh air helmet for firefighters in order to solve the shortcomings in the prior art.

In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

A fresh air helmet for firefighters, including a helmet and an air breathing apparatus, the helmet includes a helmet body, a rotating face shield and a bracket, and the middle part of the top outer wall of the helmet body is provided with a reinforcing rib, and the rotating face shield is fixed on the helmet body through a hinge. One end of the outer wall on both sides, the bracket is fixed on the outer wall of the helmet body away from the rotating mask by bolts, the air respirator includes a wearing mask, an air duct and a breathing box, and the outer wall of the wearing mask is integrally connected with a trachea connector , the trachea is inserted on the inner wall of the trachea connector, and the other end of the trachea is connected with a breathing box, the breathing box includes a casing, an outer cover, a filter and a fan, and the outer cover is clamped on the casing. On the outer wall, the filter is clamped on the inner wall on the opposite side of the outer cover and the casing, and the fan is arranged at the connection between the casing and the air duct.

Preferably, the inner wall of the bottom end of the casing is provided with a battery compartment, and the outer wall of the bottom end of the battery compartment is clamped with a compartment cover.

Preferably, a USB charging port and an adjustment button are provided on one outer wall of the case, and a power indicator light is provided on the top outer wall of the case.

Preferably, an air outlet is opened at the connection between the wearing mask and the trachea connector, and the inner wall of the air outlet is provided with a filter cotton yarn.

Preferably, the fan includes a motor, a fan blade frame and a fan blade, the motor is fixed on the inner wall of the fan blade frame, and the fan blade is fixed on the output shaft of the motor.

Preferably, the middle parts of the outer walls on both sides of the filter are provided with buckles, and the filter is clipped on the inner wall of the outer cover through the buckles.

Preferably, the outer edge of the bottom end of the helmet body is integrally connected with a reinforced hat brim, and the side of the reinforced hat brim close to the air respirator is provided with a pipe hole, and the outer wall of the air duct is inserted on the inner wall of the pipe hole .

Preferably, the bottom of the reinforced brim is provided with a pipe routing groove, and the air ducts are arranged along the pipe routing groove, and the outer wall of one side of the air duct close to the rotating mask is provided with air holes.

The beneficial effects of the present utility model are:

1. This fresh air helmet filters out the smoke and dust and some toxic gases in the air of the fire field through the filter, and transports the filtered pure air into the firefighter's protective mask to ensure that the air the firefighters breathe is pure and will not be harmful to the body. ;

2. The fresh air helmet transports pure air into the protective mask through a fan, forming a local micro-positive pressure environment in the protective mask. In the mask part, the air duct is provided with air holes, and the gas in the air holes forms an air curtain at the mask to prevent external It contains smoke and toxic gases entering the mask to provide protection for firefighters' breathing and eyes. The system is a semi-open environment, which will not have a great impact on the language communication of firefighters.

Description of drawings

Fig. 1 is the helmet structure schematic diagram of a kind of firefighter's fresh air helmet proposed by the utility model;

Fig. 2 is a disassembled view of the air breathing apparatus of a firefighter's fresh air helmet proposed by the utility model.

In the picture: 1 helmet body, 2 reinforcing ribs, 3 rotating mask, 4 wearing mask, 5 air guide tube, 6 tracheal tube connector, 7 reinforced hat brim, 8 air respirator, 9 air outlet, 10 pipe hole, 11 adjustment button, 12 USB charging ports, 13 battery compartments, 14 chassis, 15 blades, 16 covers, 17 filters.

Detailed ways

The technical solution of the present patent will be described in further detail below in conjunction with specific embodiments.

Embodiments of the present patent are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present patent, but should not be construed as a limitation on the present patent.

In the description of this patent, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", The orientation or positional relationship indicated by "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present patent and simplifying the description, rather than indicating or implying The device or element referred to must have, be constructed, and operate in a particular orientation and is not to be construed as a limitation of this patent.

In the description of this patent, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected", "connected" and "arranged" should be understood in a broad sense. , it can also be detachably connected and set, or integrally connected and set. For those of ordinary skill in the art, the specific meanings of the above terms in this patent can be understood according to specific situations.

1-2, a firefighter's fresh air helmet, including a helmet and an air respirator 8, the helmet includes a helmet body 1, a rotating face shield 3 and a bracket, and the middle of the top outer wall of the helmet body 1 is provided with a reinforcing rib 2, and the rotating face shield 3 is fixed on both sides of one end outer wall of the helmet body 1 by hinges, the bracket is fixed on the outer wall of the helmet body 1 away from the rotating face mask 3 by bolts, and the air respirator 8 includes a wearing mask 4, an air duct 5 and a breathing box, and The outer wall of the wearing mask 4 is integrally connected with the trachea connector 6, the airway tube 5 is inserted on the inner wall of the trachea connector 6, and the other end of the airway tube 5 is connected with the breathing box, and the breathing box includes a machine box 14, an outer cover 16, The filter 17 and the fan, and the outer cover 16 is clamped on the outer wall of the casing 14, the filter 17 is clamped on the inner wall of the opposite side of the outer casing 16 and the casing 14, and the fan is provided at the connection between the casing 14 and the air duct 5 The bottom inner wall of the case 14 is provided with a battery compartment 13, and the bottom outer wall of the battery compartment 13 is clamped with a compartment cover, the outer wall of one side of the case 14 is provided with a USB charging port 12 and an adjustment button 11, and the case The top outer wall of 14 is provided with a power indicator light, an air outlet 9 is provided at the junction of the wearing mask 4 and the trachea connector 6, and the inner wall of the air outlet 9 is provided with a filter cotton yarn, and the fan includes a motor, a fan blade frame and a fan blade 15, And the motor is fixed on the inner wall of the fan blade frame, the fan blade 15 is fixed on the output shaft of the motor, the middle of the outer walls on both sides of the filter 17 is provided with buckles, and the filter 17 is clipped on the inner wall of the outer cover 16 through the buckles. Above, the outer edge of the bottom end of the helmet body 1 is integrally connected with a reinforced brim 7, and the side of the reinforced brim 7 close to the air respirator 8 is provided with a pipe hole 10, and the outer wall of the air duct 5 is inserted into the pipe hole 10. On the inner wall, the bottom of the reinforced brim 7 is provided with a pipe groove, and the air pipe 5 is arranged along the pipe groove.

Working principle: The fresh air helmet inhales the air of the fire field through the fan, filters out the smoke and dust and some toxic gases in the air of the fire field through the filter 17, and transports the filtered pure air to the firefighters wearing masks 4, and the pure air is transported through the fan In the wearing mask 4, a local micro-positive pressure environment is formed in the wearing mask 4 to prevent the external smoke and toxic gases from entering the mask, and provide protection for firefighters' breathing and eyes. The rotating mask 3 of the helmet body 1 is a half. The open environment will not have a great impact on the language communication of firefighters.

The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. Equivalent replacement or modification of the new technical solution and its utility model concept shall be included within the protection scope of the present utility model.

Claims (8)

1. The utility model provides a firefighter's new trend helmet, includes helmet and air respirator (8), its characterized in that, the helmet includes the helmet body (1), rotatory face guard (3) and support, and is equipped with strengthening rib (2) at the top outer wall middle part of the helmet body (1), rotatory face guard (3) pass through the hinge fastening in the one end outer wall both sides of the helmet body (1), the support passes through the bolt fastening on one side outer wall of keeping away from rotatory face guard (3) of the helmet body (1), air respirator (8) are including wearing face guard (4), air duct (5) and breathing box, and the outer wall body coupling who wears face guard (4) has trachea connector (6), air duct (5) are pegged graft on the inner wall of trachea connector (6), and the other end of air duct (5) is connected with breathing box, breathing box includes machine box (14), outer cover (16), Filter (17) and fan, and dustcoat (16) joint is on the outer wall of machine box (14), filter (17) joint is on dustcoat (16) and the relative one side inner wall of machine box (14), the fan is established in the junction of machine box (14) and air duct (5).

2. A fresh air helmet for firefighters according to claim 1, wherein a battery compartment (13) is provided on the inner wall of the bottom end of the case (14), and a compartment cover is fastened to the outer wall of the bottom end of the battery compartment (13).

3. A firefighter's fresh air helmet according to claim 1, wherein a USB charging port (12) and an adjusting button (11) are provided on one side of the outer wall of the case (14), and a power indicator lamp is provided on the top outer wall of the case (14).

4. A fresh air helmet for firefighters according to claim 1, wherein the junction of the wearing mask (4) and the air pipe connector (6) is provided with an air outlet (9), and the inner wall of the air outlet (9) is provided with filter cotton yarn.

5. A firefighter's fresh air helmet as claimed in claim 1, wherein the blower includes a motor, a fan blade carrier and fan blades (15), and the motor is fixed to an inner wall of the fan blade carrier, and the fan blades (15) are fixed to an output shaft of the motor.

6. A firefighter's fresh air helmet according to claim 1, wherein the filter (17) is provided with a snap at the middle of the outer wall of each side, and the filter (17) is snapped on the inner wall of the outer cover (16) by the snap.

7. A fresh air helmet for firefighters according to claim 1, wherein a reinforcing visor (7) is integrally connected to the outer edge of the bottom end of the helmet body (1), a pipe passing hole (10) is formed in one side of the reinforcing visor (7) close to the air respirator (8), and the outer wall of the air duct (5) is inserted into the inner wall of the pipe passing hole (10).

8. A firefighter's fresh air helmet according to claim 7, wherein the bottom of the reinforcing visor (7) is provided with a duct, and air ducts (5) are arranged along the duct, and air holes are formed in the outer wall of one side of the air duct (5) close to the rotary face mask (3).

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