CN222238587U - A powered air supply device for fire fighting - Google Patents

Abstract

The utility model relates to the technical field of fire protection, in particular to a power air supply device for fire protection, wherein ventilating ducts are arranged in an outer protective shell of a helmet and are uniformly distributed, therefore, after the fan starts working and supplying air, the whole helmet can be fully covered by the air through the ventilating duct, and the air is uniformly supplied to users through the buffer layer, so that the effects of cooling and ventilation are achieved. The helmet provided by the utility model can uniformly supply air to users only by connecting the air supply pipe, reduces the use of the hose and is convenient to use.

Description

Power air supply device for fire protection

Technical Field

The utility model relates to the technical field of fire protection, in particular to a power air supply device for fire protection.

Background

Because the fire control process is high temperature, the firefighter needs to use appurtenance to cool down, so can increase air supply arrangement for firefighter's helmet among the prior art. In the prior art, most of air supply devices are connected with a helmet through hoses, in order to enable all directions of the helmet to be ventilated, a plurality of hoses are used for supplying air, as in the protective clothing air supply device disclosed in patent CN202311341759.1, a plurality of hoses are connected to the non-ground-passing part of the helmet, so that the purpose is mainly to ventilate users from different angles, but the hoses are easily pulled out when the protective clothing air supply device is used, and the protective clothing air supply device is inconvenient to assemble due to too many structures and inconvenient to wear, so that the protective clothing air supply device is inconvenient for actual operation of firefighters.

Disclosure of Invention

The utility model provides a power air supply device for fire protection aiming at the problems of the prior art, wherein an air channel is arranged in a helmet, and air is supplied by a user through an air supply hole position of a buffer layer, and uniform air supply of the user is realized through the air channel, so that the helmet is externally connected with a hose, and the external structure of the helmet is simpler.

The power air supply device for fire protection comprises a head protection device and an air supply device, wherein the air supply device comprises a fan and an air supply shell, the fan is assembled on the air supply shell, the air supply shell is provided with a mounting belt, the head protection device comprises a helmet and a face mask, the face mask is arranged on the helmet, the helmet comprises an outer protection shell and a buffer layer, the outer protection shell and the buffer layer are sequentially arranged from outside to inside, a plurality of air channels are arranged in the outer protection shell, the air channels are uniformly distributed in the outer protection shell, a plurality of through holes are formed in the air channels, a plurality of air supply holes are uniformly formed in the buffer layer, the air supply holes are communicated with the through holes, an air inlet is formed in the outer protection shell, the air inlet is communicated with the air channels, an air outlet is formed in the air supply shell, and an air supply pipe is connected between the air outlet and the air inlet.

Preferably, the outer protective shell is further provided with a cavity layer between the buffer layers, and the cavity layer is communicated with the through holes and the air supply holes.

Preferably, the fans are provided in plurality, and the fans are detachably assembled on the air supply shell.

Preferably, the air supply shell comprises a shell and a base, the base is fixed on the shell, a first guide rail is arranged on the base, a second guide rail is arranged on the fan, the second guide rail is used for being in sliding connection with the first guide rail, and the radial sections of the first guide rail and the second guide rail are L-shaped.

Preferably, the shell comprises an outer cover and filter screens arranged at two ends of the outer cover.

Preferably, the blast pipe is provided with an air quantity adjusting valve.

Preferably, a sprayer is arranged in the air supply shell, and the sprayer is used for generating mist to cool a user.

The utility model has the beneficial effects that:

The ventilation channels are arranged in the outer protective shell of the helmet, and the ventilation channels are uniformly distributed, so that after the fan starts working and supplying air, the whole helmet can be fully covered with the air through the ventilation channels, and then the buffer layer uniformly supplies air to users, thereby achieving the effects of cooling and ventilation. The helmet provided by the utility model can uniformly supply air to users only by connecting the air supply pipe, reduces the use of the hose and is convenient to use.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the head restraint of the present utility model;

FIG. 3 is a schematic diagram of a buffer layer according to the present utility model;

FIG. 4 is a partial cross-sectional view of the helmet of the present utility model;

fig. 5 is a schematic structural view of the air duct of the outer protective case according to the present utility model;

Fig. 6 is a schematic view of the structure of the through hole of the ventilation duct of the present utility model;

FIG. 7 is a schematic diagram of a blower according to the present utility model;

FIG. 8 is a schematic view of the structure of the first rail of the present utility model;

FIG. 9 is a schematic view of the structure of the fan and base of the present utility model.

The reference numerals in fig. 1 to 9 include:

The air quantity adjusting device comprises a 1-fan, a 2-shell, a 3-base, a 4-helmet, a 5-mask, a 6-outer protective shell, a 7-buffer layer, an 8-air duct, a 9-through hole, a 10-air supply hole, an 11-air inlet, a 12-air outlet, a 13-air supply pipe, a 14-cavity layer, a 15-first guide rail, a 16-second guide rail, a 17-filter screen and an 18-air quantity adjusting valve.

Detailed Description

The utility model will be further described with reference to examples and drawings, to which reference is made, but which are not intended to limit the scope of the utility model. The present utility model will be described in detail below with reference to the accompanying drawings.

The power air supply device for fire protection, as shown in fig. 1 to 9, comprises a head protection device and an air supply device, wherein the air supply device comprises a fan 1 and an air supply shell, the fan 1 is assembled on the air supply shell, an installation belt (not shown in the drawing) is arranged on the air supply shell, the head protection device comprises a helmet 4 and a face mask 5, the face mask 5 is arranged on the helmet 4, the helmet 4 comprises an outer protection shell 6 and a buffer layer 7 which are sequentially arranged from outside to inside, a plurality of air ducts 8 are arranged in the outer protection shell 6, the air ducts 8 are uniformly distributed in the outer protection shell 6, a plurality of through holes 9 are formed in the air ducts 8, a plurality of air supply holes 10 are uniformly formed in the buffer layer 7, the air supply holes 10 are communicated with the through holes 9, an air inlet 11 is formed in the outer protection shell 6, the air inlet 11 is communicated with the air ducts 8, an air outlet 12 is formed in the air supply shell, and an air supply pipe 13 is connected between the air outlet 12 and the air inlet 11. Wherein, fan 1 is prior art, drives the flabellum through the motor and rotates the change that drives the air current, realizes supplying air. In addition, the air supply device of the embodiment is further provided with a power source, such as a rechargeable battery, for supplying power to the structure requiring power, such as the fan 1, which is the prior art.

Specifically, as shown in fig. 1, the air supply device supplies air to the helmet 4 through the air supply pipe 13, as shown in fig. 5 and 6, the air channels 8 in the helmet 4 are uniformly distributed, the air inlets 11 of the outer protecting shell 6 are communicated with the air channels 8, and flow to each position of the outer protecting shell 6 through the air channels 8, and the air channels 8 can be in a circular shape as shown in fig. 5 or in a radial structure extending outwards from the air inlets 11 of the outer protecting shell 6, so long as the outer protecting shell 6 can be uniformly distributed. Further, a cavity layer 14 is further disposed between the outer protective shell 6 and the buffer layer 7 in this embodiment, as shown in fig. 4, the air in the air duct 8 flows to the cavity layer 14 through the through holes 9, so that the cavity layer 14 is full of air flow, and therefore, the air flows to the buffer layer 7 through the cavity layer 14, and then is sent to the head of a user through the air supply hole 10 of the buffer layer 7, and because the cavity layer 14 is full of air, the air sent out by the buffer layer 7 is also full of air, the purpose of uniformly supplying air to the user is achieved, and a plurality of hoses are not required to be connected to the helmet 4, so that the structure of the helmet 4 in this embodiment is simpler, and the situation that the hoses fall down in the use process is reduced.

As shown in fig. 1 and fig. 7 to fig. 9, the blower 1 of the present embodiment is provided with a plurality of fans, the air volume is adjusted by the working data of the blower 1, in addition, an air volume adjusting valve 18 can be further installed on the air supply pipe 13, and the air volume is adjusted by the air volume adjusting valve 18, so as to meet the requirements of different situations, and the air volume adjusting valve 18 in the present embodiment is the prior art. The air supply shell of this embodiment includes casing 2 and base 3, base 3 is fixed in casing 2, first guide rail 15 has been installed to base 3, fan 1 has installed second guide rail 16, second guide rail 16 is used for with first guide rail 15 sliding connection, the radial cross-section of first guide rail 15 and second guide rail 16 is the L shape.

Specifically, during installation, the filter screen 17 is removed, the fan 1 is inserted into the air supply housing from the position where the filter screen 17 is installed, as shown in fig. 8 and 9, the second guide rail 16 of the fan 1 is slidably connected with the first guide rail 15 of the base 3, so that the fans 1 are slid to corresponding positions, the fan 1 is not easy to separate from the housing 2 under the cooperation of the first guide rail 15 and the second guide rail 16, the filter screen 17 is installed, the installation mode of the filter screen 17 and the assembly mode of the base 3 and the housing 2 are all the prior art, for example, the assembly is performed through a clamping hook and a clamping connection mode, or the assembly is performed through screws, and the embodiment is not limited. Further, since large dust is easy to be contained in the fire-fighting process, the filter screen 17 is provided, so that dirt such as dust in the wind can be prevented, the situation that dust flows into the helmet 4 along with the wind can be reduced, and the influence on users can be reduced.

Further, a sprayer (not shown in the drawings) is installed in the air supply housing, and the sprayer is used for generating mist to cool a user. Specifically, the sprayer is used for generating water mist, for example, in the fire extinguishing process, the water mist generated by the sprayer can cool down a user. The sprayer is of the prior art and can be installed in the air supply housing in the same way as the fan 1.

While the utility model has been described with reference to the preferred embodiments, it will be understood by those skilled in the art that the present utility model is not limited thereto, and that the utility model is not limited thereto, but is intended to be limited thereto, when the technical content disclosed above is utilized to make a little change or modification into equivalent embodiments of equivalent changes, but the technical content of the utility model is not deviated from, any simple modification, equivalent changes and modification of the above embodiments are all within the scope of the technical solution of the utility model.

Claims (7)

1. A power air supply device for fire protection is characterized by comprising a head protection device and an air supply device, wherein the air supply device comprises a fan and an air supply shell, the fan is assembled on the air supply shell, an installation belt is arranged on the air supply shell, the head protection device comprises a helmet and a face mask, the face mask is arranged on the helmet, the helmet comprises an outer protection shell and a buffer layer, the outer protection shell is sequentially arranged from outside to inside, a plurality of air channels are arranged in the outer protection shell, the air channels are uniformly distributed in the outer protection shell, a plurality of through holes are formed in the air channels, a plurality of air supply holes are uniformly formed in the buffer layer, the air supply holes are communicated with the through holes, an air inlet is formed in the outer protection shell, the air inlet is communicated with the air channels, an air outlet is formed in the air supply shell, and an air supply pipe is connected between the air outlet and the air inlet.

2. The powered air supply apparatus of claim 1, wherein a cavity layer is further disposed between the outer protective shell and the buffer layer, and the cavity layer is communicated with the through hole and the air supply hole.

3. The device for fire protection as set forth in claim 1, wherein a plurality of fans are provided, and the fans are detachably mounted on the air supply housing.

4. A powered air supply apparatus for fire protection as defined in claim 3 wherein said air supply housing includes a housing and a base, said base being secured to said housing, said base having a first guide rail, said blower having a second guide rail for sliding connection with said first guide rail, said first and second guide rails each having an L-shaped radial cross-section.

5. The apparatus of claim 4, wherein the housing includes an outer cover and screens disposed at both ends of the outer cover.

6. The power air supply device for fire protection according to claim 1, wherein the air supply pipe is provided with an air quantity adjusting valve.

7. The powered air supply apparatus of claim 1 wherein said housing is provided with a sprayer for generating mist for cooling a user.