A firefighting breathing mask with a quick-detachable split structure

Abstract

The utility model relates to the technical field of firefighting equipment, and in particular to a firefighting breathing mask with a quick-detachable split structure, comprising a transparent mask body, a circular assembly through hole being provided at the front end of the transparent mask body, and an internal breathing mask being arranged inside the transparent mask body at the position of the circular assembly through hole. The firefighting breathing mask with a quick-detachable split structure of the utility model adopts a split structure design to separate the transparent mask, the internal breathing mask and the external connecting valve into independent components, thereby reducing the cost of later use; the internal breathing mask and the external connecting valve can be disassembled for cleaning, thereby reducing the difficulty of cleaning and maintenance; the elastic buckle design is adopted, so that the loading and unloading is very convenient and fast; the internal breathing mask and the external connecting valve are mutually clamped and fixed on the transparent mask, and the connection seal is stable.

Description

Technical Field

[0001] The utility model relates to the technical field of fire fighting equipment, in particular to a fire fighting breathing mask with a quick-detachable split structure. Background Art

[0002] Fire breathing masks are a type of respiratory protection device used to help people escape from fires. By wearing it on the face, people can provide certain protection for the wearer's respiratory organs, eyes and facial skin in the event of a fire. Fire masks are mainly composed of masks, air ducts, gas filter tubes or gas filter boxes. The air duct is connected to an external gas tank to provide clean air, which improves the safety of the wearer after long-term use. At present, the wearing mechanism of fire breathing masks is an integrated fixed structure, which is very troublesome for people to clean after use, and once it is partially damaged, it can only be replaced as a whole, which is very wasteful. Utility Model Content

[0003] The technical problem to be solved by the utility model is that the wearing mechanism of the fire breathing mask is an integrated fixed structure at present, which is very troublesome for people to clean after use, and once it is partially damaged, it can only be replaced as a whole, which is very wasteful.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a fire breathing mask with a quick-detachable split structure, comprising a transparent mask body, a circular assembly through hole is opened at the front end of the transparent mask body, an internal breathing mask is arranged inside the transparent mask body at the position of the circular assembly through hole, an external connecting valve matching the internal breathing mask is arranged outside the transparent mask body at the position of the circular assembly through hole, an external assembly frame protruding toward the circular assembly through hole is provided on the side wall of the connecting end of the internal breathing mask, and a detachable internal filter block is installed inside the external assembly frame.

[0005] The outer side surface of the external assembly frame is provided with inner assembly grooves and outer assembly grooves arranged in a circular array.

[0006] The inner side assembly groove has an elastic buckle matched with the circular assembly through hole, and the inner breathing mask is fixedly connected with the transparent mask body by the elastic buckle sleeve on the outer opening position of the circular assembly through hole.

[0007] The connection end opening of the external connection valve is provided with an annular mounting blind hole matching the external assembly frame, and the outer side surface of the external connection valve is provided with an embedded elastic lock buckle. The external connection valve is inserted into the outer assembly groove through the inner limiting end of the embedded elastic lock buckle and is clamped and fixed to the external assembly frame.

[0008] An outer transition groove matching with the elastic buckle is provided on the inner side surface of the annular installation blind hole at the outer opening position.

[0009] An inner side transition groove cooperating with the elastic buckle is provided on the inner side surface of the circular assembly through hole at the outer opening position.

[0010] The beneficial effects of the utility model are:

[0011] (1) The firefighting breathing mask with a quick-detachable split structure of the utility model adopts a split structure design to separate the transparent mask, the internal breathing mask and the external connecting valve into independent components, thereby reducing the subsequent use cost;

[0012] (2) The internal breathing mask and external connecting valve can be disassembled for cleaning, reducing the difficulty of cleaning and maintenance;

[0013] (3) The elastic buckle design makes loading and unloading very convenient and fast;

[0014] (4) The internal breathing mask and the external connecting valve are fixed to the transparent mask by being mutually clamped, and the connection seal is stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0016] Figure 1 It is a structural schematic diagram of the utility model.

[0017] Figure 2 It is a partial schematic diagram of the inner side of the assembly end of the utility model. DETAILED DESCRIPTION

[0018] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0019] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] Figure 1 and Figure 2The firefighting breathing mask with a quick-detachable split structure shown in the figure comprises a transparent mask body 1, a circular assembly through hole 2 is opened at the front end of the transparent mask body 1, an internal breathing mask 3 is arranged inside the transparent mask body 1 at the position of the circular assembly through hole 2, an external connecting valve 4 matching with the internal breathing mask 3 is arranged outside the transparent mask body 1 at the position of the circular assembly through hole 2, an external assembly frame 5 protruding toward the circular assembly through hole 2 is provided on the side wall of the connecting end of the internal breathing mask 3, and a detachable internal filter block 6 is installed inside the external assembly frame 5.

[0021] Installation principle: insert the internal breathing mask 3 from the inside of the transparent mask body 1, then extend the external assembly frame 5 from the circular assembly through hole 2, insert the detachable internal filter block 6 into the external assembly frame 5, and then sleeve and fix the external connecting valve 4 on the outside of the external assembly frame 5.

[0022] The detachable internal filter block 6 is composed of a gas filter layer made of a catalyst and impregnated activated carbon and a smoke filter layer made of ultrafine fiber material in the prior art.

[0023] In order to facilitate installation, the outer surface of the external assembly frame 4 is provided with inner assembly grooves 7 and outer assembly grooves 8 arranged in a circular array.

[0024] In order to cooperate with elastic fixation, the inner assembly groove 7 has an elastic buckle 9 that matches the circular assembly through hole 2. The internal breathing mask 3 is sleeved on the outer opening position of the circular assembly through hole 2 through the elastic buckle 9 and fixedly connected with the transparent mask body 1.

[0025] In order to facilitate assembly, the connection end opening of the external connecting valve 4 has an annular mounting blind hole 10 that matches the external assembly frame 4, and an embedded elastic lock buckle 11 is provided on the outer surface of the external connecting valve 4. The external connecting valve 4 is inserted into the outer assembly groove 8 through the inner limiting end of the embedded elastic lock buckle 11 and is clamped and fixed to the external assembly frame 5.

[0026] A flexible sealing layer is installed on the outer side of the embedded elastic lock buckle 11, so that the outer side surface of the embedded elastic lock buckle 11 can be protected.

[0027] In order to limit the installation angle of the internal breathing mask 3 and improve the installation stability, an outer transition groove 12 cooperating with the elastic buckle 9 is opened on the inner side surface of the annular installation blind hole 10 at the outer opening position.

[0028] In order to improve the fit of the assembly surface, an inner transition groove 13 cooperating with the elastic buckle 9 is provided on the inner side surface of the circular assembly through hole 2 at the outer opening position.

[0029] The inner transition groove 13 cooperates with the outer transition groove 12 to respectively accommodate the elastic buckle 9, which can improve the fit between the external connection valve 4 and the transparent mask body 1, and can also fix the installation angle of the internal breathing mask 3 and the external connection valve 4.

[0030] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A firefighting breathing mask with a quick-detachable split structure, comprising a transparent mask body (1), characterized in that: The transparent mask body (1) is provided with a circular assembly through hole (2) at the front end, an internal breathing mask (3) is arranged inside the transparent mask body (1) at the position of the circular assembly through hole (2), an external connection valve (4) matching with the internal breathing mask (3) is arranged outside the transparent mask body (1) at the position of the circular assembly through hole (2), an external assembly frame (5) protruding toward the circular assembly through hole (2) is provided on the side wall of the connection end of the internal breathing mask (3), and a detachable internal filter block (6) is installed inside the external assembly frame (5).

2. The firefighting breathing mask with a quick-detachable split structure according to claim 1 is characterized in that: The outer surface of the external assembly frame (5) is provided with inner assembly grooves (7) and outer assembly grooves (8) arranged in a circular array.

3. The firefighting breathing mask with a quick-detachable split structure according to claim 2 is characterized in that: The inner side assembly groove (7) has an elastic buckle (9) inside that matches the circular assembly through hole (2), and the inner breathing mask (3) is sleeved on the outer opening position of the circular assembly through hole (2) through the elastic buckle (9) to be fixedly engaged with the transparent mask body (1).

4. The firefighting breathing mask with a quick-detachable split structure according to claim 3 is characterized by: The connection end opening of the external connection valve (4) is provided with an annular mounting blind hole (10) which matches the external assembly frame (5); an embedded elastic lock buckle (11) is provided on the outer side surface of the external connection valve (4); the external connection valve (4) is inserted into the outer assembly groove (8) through the inner limiting end of the embedded elastic lock buckle (11) to be clamped and fixed to the external assembly frame (5).

5. The firefighting breathing mask with a quick-detachable split structure according to claim 4 is characterized in that: An outer transition groove (12) matching with the elastic buckle (9) is provided on the inner side surface of the annular mounting blind hole (10) at the outer opening position.

6. The firefighting breathing mask with a quick-detachable split structure according to claim 5 is characterized in that: An inner side transition groove (13) matching with the elastic buckle (9) is provided on the inner side surface of the circular assembly through hole (2) at the outer opening position.

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