CN220632791U

CN220632791U - Rescue is supplementary air feeder for respirator

Info

Publication number: CN220632791U
Application number: CN202322246838.6U
Authority: CN
Inventors: 詹耿升; 詹楚炎
Original assignee: Fire Rescue Brigade Of Zhongshan Torch High Technology Industrial Development Zone
Current assignee: Fire Rescue Brigade Of Zhongshan Torch High Technology Industrial Development Zone
Priority date: 2023-08-18
Filing date: 2023-08-18
Publication date: 2024-03-22
Anticipated expiration: 2033-08-18

Abstract

The utility model provides an auxiliary air supply device for a rescue respirator, and relates to the field of rescue equipment. The filter comprises an outer filter cartridge, a filter cartridge and an inner filter cartridge, wherein the filter cartridge is arranged in the outer filter cartridge, the inner filter cartridge is arranged in the filter cartridge, end covers are arranged at two ends of the outer filter cartridge and the inner filter cartridge, a plurality of air inlets are formed in the end covers, and the two ends of the outer filter cartridge are detachably connected with the end covers; a filtering component is arranged between the end cover of the outer filtering cylinder and the end part of the filtering cylinder, an air pipe is detachably connected to the side wall of the inner filtering cylinder, the air pipe penetrates through the filtering cylinder and the side wall of the outer filtering cylinder to extend to the outside, a connecting female head is arranged at the outer end part of the air pipe, and the connecting female head is connected with a male head adapting connection of the air supply valve assembly. According to the device, when the gas cylinder is out of gas, the gas supply valve assembly is connected to supply gas to the mask, harmful substances in the dense smoke are filtered, and then the air is conveyed to the mask; and can dismantle, be convenient for change, wash or maintain inside filtration structure.

Description

Rescue is supplementary air feeder for respirator

Technical Field

The utility model relates to the field of rescue equipment, in particular to an auxiliary air supply device for a rescue respirator.

Background

The air respirator is an open air respirator, and is widely applied to departments such as fire protection, chemical industry, ships, petroleum, smelting, warehouses, laboratories, mines and the like, so that firefighters or rescue workers can safely and effectively extinguish fire and work in various environments such as dense smoke, toxic gas, steam or oxygen deficiency. The rescue air respirator is mainly used for preventing the fire rescue personnel from inhaling toxic gas and smoke harmful to human bodies, suspending harmful pollutants in the air or using in an anoxic environment when carrying out fire fighting or rescue.

The respirator mainly comprises five parts including a gas cylinder assembly, a pressure reducer assembly, a full face mask assembly, a gas supply valve assembly and a back support assembly, and is additionally provided with a tool bag, a storage bag and a device box.

Disclosure of Invention

The utility model aims to provide an auxiliary air supply device for a rescue respirator, which can be used for connecting an air supply valve assembly to supply air to a mask when an air bottle is out of air, filtering harmful substances in dense smoke and then conveying air to the mask; and can dismantle, be convenient for change, wash or maintain inside filtration structure.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a rescue is supplementary air feeder for breathing ware, it includes outer cartridge filter, filter core section of thick bamboo and interior cartridge filter, the filter core section of thick bamboo is located in the outer cartridge filter, interior cartridge filter is located in the filter core section of thick bamboo, outer cartridge filter and the both ends of interior cartridge filter are equipped with the end cover, a plurality of inlet ports have been seted up to the end cover, wherein, the both ends of outer cartridge filter can be dismantled and connect the end cover;

the end cover of outer cartridge filter with be equipped with filter unit between the tip of filter cartridge, interior cartridge filter's lateral wall detachably is connected with the trachea, the trachea passes filter cartridge filter with the lateral wall of outer cartridge filter extends to outside, tracheal outer tip is equipped with connects female head, connect female head and the public head adaptation of connection of air supply valve assembly.

Further, in the utility model, a fan is arranged in the inner filter cylinder.

Further, in the utility model, the side wall of the inner filter cylinder is provided with a connecting hole, the connecting hole is provided with an internal thread, one end of the air pipe is provided with a connector, the connector is provided with an external thread, and the internal thread is matched with the external thread.

Further, in the utility model, an elastic annular card is arranged in the filter element barrel, the elastic annular card comprises a fixed ring and a plurality of elastic pieces, the elastic pieces are annularly fixed on the inner wall of the fixed ring to form a circular mounting hole, and the circular mounting hole is matched with the diameter of the inner filter barrel.

Further, in the utility model, the filter assembly comprises a first filter piece and a second filter piece which are sequentially arranged adjacently from outside to inside, wherein the first filter piece and the second filter piece are round and are respectively clamped on the inner wall of the outer filter cylinder.

Further, the first filter element comprises a gauze particle bag which is evenly divided into a plurality of small bags.

Further, the second filter element comprises a gauze layer, and a miniature film water bag is embedded in the gauze layer.

The utility model has at least the following advantages or beneficial effects:

the utility model sets up the air feeder that is formed by outer cartridge filter, filter assembly, filter cartridge and inner cartridge filter, carry on the first filtration through the inlet port of the outer cartridge filter, stop substances such as large granule impurity outside, carry on the second filtration through the filter assembly, filter and adsorb poisonous smog, carry on the third filtration through the filter cartridge, filter the surplus harmful substance in smog, carry on the fourth filtration through the inner cartridge filter, and collect the gas, convey the gas to the face mask and supply air at last through the air pipe and supply the valve assembly, through setting up the outer end of the air pipe as the connection female head that is fit with the connection male head of the air supply valve assembly, when the gas bottle does not have the gas, can pull out the connection male head of the air supply valve assembly and gas bottle directly, connect it with the connection female head of the device, and then supply air after filtering the ambient air.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic view of a partial sectional structure of an auxiliary air supply device for a rescue ventilator according to an embodiment of the present application;

fig. 2 is a schematic structural view of a fan inside a filter cartridge provided in an embodiment of the present application;

FIG. 3 is a schematic structural view of a filter assembly according to an embodiment of the present disclosure;

fig. 4 is a front view of a second filter provided in an embodiment of the present application.

Icon: 100-outer filter cartridge, 200-filter cartridge, 210-elastic annular card, 211-fixed ring, 212-elastic piece, 300-inner filter cartridge, 310-fan, 400-end cap, 410-inlet port, 500-air pipe, 510-connection female, 600-filter assembly, 610-first filter piece, 620-second filter piece, 621-gauze bag.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples

Referring to fig. 1 to 4, a schematic structural diagram of an auxiliary air supply device for a rescue breathing apparatus according to an embodiment of the present utility model is shown;

the embodiment provides an auxiliary air supply device for a rescue respirator, which comprises an outer filter cartridge 100, a filter cartridge 200 and an inner filter cartridge 300, wherein the filter cartridge 200 is arranged in the outer filter cartridge 100, the inner filter cartridge 300 is arranged in the filter cartridge 200, end covers 400 are arranged at two ends of the outer filter cartridge 100 and the inner filter cartridge 300, a plurality of air inlets 410 are formed in the end covers 400, and the two ends of the outer filter cartridge 100 are detachably connected with the end covers 400;

a filter assembly 600 is arranged between the end cover 400 of the outer filter cartridge 100 and the end part of the filter cartridge 200, an air pipe 500 is detachably connected to the side wall of the inner filter cartridge 300, the air pipe 500 extends to the outside through the filter cartridge 200 and the side wall of the outer filter cartridge 100, a connecting female head 510 is arranged at the outer end part of the air pipe 500, and the connecting female head 510 is connected with a connecting male head of the air supply valve assembly in an adapting way.

Next, a rescue ventilator auxiliary air supply device according to the present exemplary embodiment will be further described.

In some embodiments of the present application, the end caps 400 are disposed at two ends of the outer filter cartridge 100 and the inner filter cartridge 300, the end caps 400 are provided with a plurality of air inlet holes 410, the diameter of each air inlet hole 410 is 0.03-0.8cm, large particulate matters in dense smoke can be filtered, the outer filter cartridge 100 supports and fixes the filter cartridge 200 and the inner filter cartridge 300, and primary filtration is performed, at least one end of the outer filter cartridge 100 is detachably connected with the end caps 400, specifically, the end caps 400 at least one end of the outer filter cartridge 100 are in threaded connection or are clamped, so that the disassembly is convenient, the end caps 400 can be removed, the filter cartridge 200 or the inner filter cartridge 300 inside the outer filter cartridge can be taken out, and the filter cartridge can be replaced, maintained or cleaned independently, so that the filter cartridge is replaced integrally after damage is avoided, and the cost can be saved. The filter assembly 600 is disposed between the end cap 400 of the outer filter cartridge 100 and the end of the filter cartridge 200, and after the smoke preliminarily filtered by the outer filter cartridge 100 enters the filter assembly, the smoke can be filtered by the second layer through the filter assembly 600, so that the harmful and toxic substances in the smoke are filtered and adsorbed, and the filtering effect is improved. The filter cartridge 200 may be a filter cartridge of an air filter in the prior art, and filters air entering the filter cartridge 200 to purify the air; the inner filter cartridge 300 is disposed in the filter cartridge barrel 200, the sidewall of the inner filter cartridge 300 is detachably connected with an air pipe 500, the air pipe 500 extends to the outside through the filter cartridge barrel 200 and the sidewall of the outer filter cartridge 100, a connection female head 510 is disposed at the outer end of the air pipe 500, the connection female head 510 is connected with a connection male head of the air supply valve assembly in an adapting manner, the inner filter cartridge 300 finally filters the air and then collects the air, and the air is conveyed to the air supply valve assembly through the air pipe 500 and then conveyed to the mask through the air supply valve.

It should be noted that, in the prior art, one end of the air supply valve assembly is connected with the mask, the other end is connected with the male head, and is spliced with the air bottle, and the outer end of the air tube 500 is set to be connected with the female head 510 adapted to the male head, so that when the air bottle is out of air, the air supply valve assembly can be quickly separated from the air bottle, and then is quickly connected with the air tube 500, and air supply can be continuously performed.

As a preferred embodiment, the sidewall of the inner filter cartridge 300 is provided with a connection hole, the connection hole is provided with an internal thread, one end of the air pipe 500 is provided with a connector, the connector is provided with an external thread, and the internal thread is adapted to the external thread. Through with trachea 500 and interior cartridge filter 300 threaded connection, the interior cartridge filter 300 of convenient to detach, when interior cartridge filter 300 is changed or maintained to needs, directly follow outer cartridge filter 100 outside rotatory trachea 500, with its and interior cartridge filter 300 separation, unscrew the end cover 400 of outer cartridge filter 100, alright take out interior cartridge filter 300 after taking out filter module 600.

In some embodiments of the present application, a fan 310 is disposed in the inner filter cartridge 300, the fan 310 may be externally connected to a control button, and the control button may be disposed on an outer wall of the outer filter cartridge 100, so as to facilitate operation; or, the fan 310 may be connected to an elastic trigger switch through a wire, and the elastic trigger switch may be disposed in the connection female head 510 of the air pipe 500, so that the fan 310 may be triggered to operate when the connection male head is plugged with the connection female head 510. Through setting up fan 310, can make inside the cartridge filter 300 form negative pressure, adsorb outside gas fast and get into inside, improve the efficiency of gas filtration purification and air feed.

In some embodiments of the present application, an elastic ring-shaped card 210 is disposed inside the filter cartridge 200, the elastic ring-shaped card 210 includes a fixing ring 211 and a plurality of elastic pieces 212, and the plurality of elastic pieces 212 are fixed on an inner wall of the fixing ring 211 in a ring shape to form a circular mounting hole, and the circular mounting hole is adapted to a diameter of the inner filter cartridge 300. Through setting up elasticity annular card 210, be fixed in the inside fixed position of filter core section of thick bamboo 200 with interior cartridge filter 300 to make it be located the middle part, can collect the air-purifying better, be convenient for the trachea 500 pass outside cartridge filter 100 and filter core section of thick bamboo 200 after accurate with interior cartridge filter 300 be connected, can also make interior cartridge filter 300 keep stable in filter core section of thick bamboo 200 inside, avoid it to take place the striking damage in the rescue walking in-process, and be convenient for the dismouting, directly pull out during the dismantlement can, during the installation directly push in the circular mounting hole can.

In some embodiments of the present application, the filter assembly 600 includes a first filter member 610 and a second filter member 620 that are sequentially disposed adjacent to each other from outside to inside, where the first filter member 610 and the second filter member 620 are both circular and are respectively fastened to the inner wall of the outer filter cartridge 100, and the first filter member 610 and the second filter member 620 are convenient to be assembled and disassembled in a fastening manner, so that after the device is used, the filtering effect of the first filter member 610 and the second filter member 620 is poor, and the first filter member 610 and the second filter member 620 can be independently replaced.

In a preferred embodiment, the first filter member 610 includes a gauze layer with a micro film water bag embedded therein. Through setting up miniature film water bag in the gauze layer, when needs use the device, can be from the outside of gauze layer with miniature film water bag hold between the fingers the back of exploding, wet gauze, water has higher adsorption efficiency than active carbon, and wet gauze can adsorb poisonous smog. When rescue workers take larger rescue tasks, the gauze layer can be soaked for standby in the process.

As a preferred embodiment, the second filter 620 includes a yarn granule bag 621, and the yarn granule bag 621 is uniformly divided into a plurality of small bags to prevent the yarn granule from piling up. A tortuous air channel is formed among the yarn particles, air flows in a tortuous way in the yarn particle layer, and air is filtered by capillary tubes in the tortuous channel, so that a good filtering effect is achieved.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The auxiliary air supply device for the rescue respirator is characterized by comprising an outer filter cartridge, a filter cartridge and an inner filter cartridge, wherein the filter cartridge is arranged in the outer filter cartridge, the inner filter cartridge is arranged in the filter cartridge, end covers are arranged at two ends of the outer filter cartridge and the inner filter cartridge, a plurality of air inlets are formed in the end covers, and the two ends of the outer filter cartridge are detachably connected with the end covers;

2. The rescue ventilator auxiliary air supply device according to claim 1, wherein a fan is provided in the inner filter cartridge.

3. The rescue breathing equipment auxiliary air supply device according to claim 1, wherein the side wall of the inner filter cartridge is provided with a connecting hole, the connecting hole is provided with an internal thread, one end of the air pipe is provided with a connector, the connector is provided with an external thread, and the internal thread is matched with the external thread.

4. The rescue breathing equipment auxiliary air supply device according to claim 1, wherein an elastic annular card is arranged in the filter element cylinder, the elastic annular card comprises a fixing ring and a plurality of elastic pieces, the plurality of elastic pieces are fixed on the inner wall of the fixing ring in an annular mode to form a circular mounting hole, and the circular mounting hole is matched with the diameter of the inner filter cylinder.

5. The rescue ventilator auxiliary air supply device according to claim 1, wherein the filter assembly comprises a first filter and a second filter which are sequentially arranged adjacently from outside to inside, and the first filter and the second filter are circular and are respectively clamped on the inner wall of the outer filter cylinder.

6. The rescue breathing equipment auxiliary air supply device according to claim 5 wherein the first filter element comprises a gauze layer embedded with a micro film water bag.

7. The rescue ventilator auxiliary air supply device as defined in claim 5 wherein the second filter element comprises a gauze bag which is evenly divided into a plurality of small bags.