Anti-poison filter cartridge capable of being freely combined and mounted

Abstract

The utility model discloses an anti-poison filter box capable of being freely combined and mounted. The anti-poison filter box comprises a main shell, a filter assembly and a limiting assembly, the main shell is provided with a first end and a second end which are opposite; the outer periphery of the first end and the inner periphery of the second end are provided with matched connecting structures; the filter assemblies are arranged in the main shell, and different filter assemblies in the main shell are used for protecting the same or different harmful gases; the limiting assemblies are fixedly arranged in the main shell and distributed on the side, close to the first end, of the filtering assembly and the side, close to the second end, of the filtering assembly. The anti-poison filter cartridge disclosed by the utility model can be combined in a targeted manner in different use environments, is flexible to use and good in protection effect, and ensures the life safety of a user.

Description

Technical Field

[0001] The utility model relates to the technical field of filtration, in particular to a gas mask filter cartridge that can be freely combined and installed. Background Art

[0002] The filter cartridge is an important component inside a gas mask, and its performance is an important manifestation of the performance of the gas mask. Most of the existing filter cartridges are of a single structure, which are set for one or two gases that need to be protected against. However, the usage environment of the gas mask is often relatively complex, resulting in poor protection effects of the existing gas masks. Summary of the Utility Model

[0003] In view of the above defects or deficiencies in the prior art, it is desirable to provide a gas mask filter cartridge that can be freely combined and installed, which can be combined with filter cartridges as needed in different usage environments, is flexible in use, has good protection effects, and ensures the safety of the user's life.

[0004] A gas mask filter cartridge that can be freely combined and installed provided by the utility model includes a main housing, a filter component, and a limiting component;

[0005] The main housing is cylindrical and has opposite first and second ends; the outer diameter of the first end is smaller than the inner diameter of the second end, and matching connection structures are provided on the outer periphery of the first end and the inner periphery of the second end;

[0006] The filter component is arranged inside the main housing, and the filter components in different main housings are used to protect the same or different harmful gases;

[0007] The limiting component is fixedly arranged inside the main housing and is distributed on one side of the filter component close to the first end and one side close to the second end, and is used to limit and fix the filter component.

[0008] Further, the filter component includes a pre-filter cotton, a post-filter cotton, and a pre-treated activated carbon; the pre-filter cotton is arranged on one side of the main housing close to the first end; the post-filter cotton is arranged on one side of the pre-filter cotton close to the second end; the pre-treated activated carbon is filled between the pre-filter cotton and the post-filter cotton.

[0009] Further, the limiting component includes a front baffle and a rear baffle; the front baffle is fixedly arranged at the first end, and a plurality of first through holes are densely arranged on the front baffle; the rear baffle is fixedly arranged inside the main housing and is located on one side of the filter component close to the second end; a plurality of second through holes are densely arranged on the rear baffle.

[0010] Further, the front baffle is integrally formed with the main housing; an installation groove is arranged inside the main housing, and the rear baffle is fixedly arranged in the installation groove.

[0011] Further, the limiting component includes a front limiting net and a rear limiting net; the front limiting net is fixedly arranged at the first end; the rear limiting net is fixedly arranged inside the main housing and on one side of the filtering component close to the second end.

[0012] Further, the front limiting net is fixed to the first end by welding; the rear limiting net is fixedly arranged in an annular frame, an embedding groove is arranged inside the main housing, and the annular frame is fixedly embedded in the embedding groove.

[0013] Further, the connecting structure includes an external thread arranged on the outer periphery of the first end and an internal thread arranged on the inner periphery of the second end.

[0014] Further, the connecting structure includes 2 - 4 clamping blocks evenly distributed on the outer periphery of the first end and 2 - 4 connecting clamping grooves evenly distributed on the inner periphery of the second end.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] The gas - proof filtering box of the present utility model is provided with a main housing, a filtering component and a limiting component; the limiting component limits and fixes the filtering component inside the main housing, and the filtering components in different main housings are used to protect the same or different harmful gases; connecting structures adapted to each other are arranged at both ends of the main housing, and multiple main housings can be connected end to end in sequence through the connecting structures. This enables the gas - proof filtering box to filter multiple harmful gases in the air simultaneously, and can also extend the service time and filter higher - concentration harmful gases by stacking and installing multiple filtering boxes with the same filtering components, greatly improving the flexibility of the user in actual application scenarios, having a good protection effect, and ensuring the life safety of the user.

[0017] It should be understood that the content described in the utility model content part is not intended to limit the key or important features of the embodiments of the present utility model, nor is it used to limit the scope of the present utility model. Other features of the present utility model will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] By reading the detailed description of the non - restrictive embodiments with reference to the following drawings, other features, purposes and advantages of the present utility model will become more obvious:

[0019] Figure 1 It is a schematic top - view structure diagram of the gas - proof filtering box;

[0020] Figure 2 It is a schematic bottom - view structure diagram of the gas - proof filtering box;

[0021] Figure 3 It is a schematic cross - sectional structure diagram of the gas - proof filtering box.

[0022] Reference numerals in the figure: 1, main housing; 2, filter assembly; 3, limiting assembly; 4, connection structure;

[0023] 11, first end; 12, second end; 13, mounting groove;

[0024] 21, pre-filter cotton; 22, post-filter cotton; 23, pre-treatment activated carbon;

[0025] 31, front baffle; 32, rear baffle; 33, first through hole; 34, second through hole;

[0026] 41, external thread; 42, internal thread. Detailed implementation manners

[0027] The present utility model will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related utility model, rather than limiting the utility model. In addition, it should be noted that, for the convenience of description, only the parts related to the utility model are shown in the drawings.

[0028] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other. The present utility model will be described in detail below with reference to the drawings and embodiments.

[0029] Please refer to Figures 1 to 3 , an embodiment of the present utility model provides a gas mask filter cartridge that can be freely assembled and installed, including a main housing 1, a filter assembly 2, and a limiting assembly 3;

[0030] The main housing 1 is cylindrical and has opposite first end 11 and second end 12; the outer diameter of the first end 11 is smaller than the inner diameter of the second end 12, and a mating connection structure 4 is provided on the outer periphery of the first end 11 and the inner periphery of the second end 12;

[0031] The filter assembly 2 is disposed inside the main housing 1, and the filter assemblies 2 in different main housings 1 are used to protect the same or different harmful gases;

[0032] The limiting assembly 3 is fixedly disposed inside the main housing 1 and is distributed on one side of the filter assembly 2 close to the first end 11 and on one side close to the second end 12, and is used to limit and fix the filter assembly 2.

[0033] In this embodiment, when the gas protection filter cartridge is in use, one filter cartridge can be used alone, or multiple gas protection filter cartridges can be connected end to end in sequence through the connecting structure 4 to form a stacked structure for use. This enables the gas protection filter cartridge to filter multiple harmful gases in the air simultaneously, or the service life can be extended and higher-concentration harmful gases can be filtered by stacking and installing multiple filter cartridges containing the same filter component 2, greatly improving the flexibility of the user in actual application scenarios, with good protection effect and ensuring the life safety of the user.

[0034] In a preferred embodiment, as Figure 3 shown, the filter component 2 includes a pre-filter cotton 21, a post-filter cotton 22, and a pre-treated activated carbon 23; the pre-filter cotton 21 is arranged on one side of the main housing 1 close to the first end 11; the post-filter cotton 22 is arranged on the side of the pre-filter cotton 21 close to the second end 12; the pre-treated activated carbon 23 is filled between the pre-filter cotton 21 and the post-filter cotton 22.

[0035] In this embodiment, the pre-treated activated carbon 23 that can cope with different harmful gases is used in the filter cartridge, and the pre-treated activated carbon 23 can effectively adsorb different harmful gases according to different pre-treatment methods. For different use environments, the filter cartridge can be stacked and installed through the connecting structure 4 to achieve the best protection effect and ensure the life safety of the user.

[0036] In a preferred embodiment, as Figures 1 to 3 shown, the limiting component 3 includes a front baffle 31 and a rear baffle 32; the front baffle 31 is fixedly arranged at the first end 11, and a plurality of first through holes 33 are densely arranged on the front baffle 31; the rear baffle 32 is fixedly arranged inside the main housing 1, on the side of the filter component 2 close to the second end 12; a plurality of second through holes 34 are densely arranged on the rear baffle 32.

[0037] In this embodiment, the front baffle 31 limits the front side of the filter component 2, and the rear baffle 32 limits the rear side of the filter component 2, thereby fixing the filter component 2 inside the main housing 1 with firm limiting and fixation. The gas passes through the filter component 2 through the first through holes 33 and the second through holes 34, and after removing harmful gases, it is supplied for the user to breathe.

[0038] In a preferred embodiment, as Figure 3 shown, the front baffle 31 and the main housing 1 are integrally formed with high structural strength; an installation groove 13 is arranged inside the main housing 1, and the rear baffle 32 is fixedly arranged in the installation groove 13, which is convenient for the assembly of the filter cartridge.

[0039] In a preferred embodiment, the limiting component 3 includes a front limiting net and a rear limiting net; the front limiting net is fixedly arranged at the first end; the rear limiting net is fixedly arranged inside the main housing 1 and is located on the side of the filtering component 2 close to the second end 12. This embodiment provides another structure of the limiting component 3. The filtering component 2 is limited and fixed by the front limiting net and the rear limiting net, with firm fixation and good air permeability effect.

[0040] In a preferred embodiment, the front limiting net is fixedly welded to the first end 11 with firm connection; the rear limiting net is fixedly arranged inside the annular frame. An embedding groove is arranged inside the main housing 1, and the annular frame is fixedly embedded in the embedding groove, which is convenient for the assembly of the filter box.

[0041] In a preferred embodiment, as Figure 2 and Figure 3 shown, the connecting structure 4 includes an external thread 41 arranged on the outer periphery of the first end 11 and an internal thread 42 arranged on the inner periphery of the second end 12, which is convenient for installation and has firm connection.

[0042] In a preferred embodiment, the connecting structure 4 includes 2 - 4 clamping blocks evenly distributed on the outer periphery of the first end 11 and 2 - 4 connecting clamping grooves evenly distributed on the inner periphery of the second end 12. This embodiment provides another structure of the connecting structure 4. The connecting clamping groove is composed of an opening along the radial direction of the main housing 1 and a clamping groove section along the circumferential direction of the main housing 1. After the clamping block is aligned with the opening and inserted, the main housing 1 is rotated and the clamping block slides into the clamping groove section to complete the connection, which is convenient for installation and has firm connection.

[0043] In the description of this specification, terms such as "connection", "installation", "fixation", etc. should all be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.

[0044] In the description of this specification, the description of terms such as "one embodiment", "some embodiments", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0045] The above are only the preferred embodiments of this application and are not used to limit this application. For those skilled in the art, various changes and modifications can be made to this application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included within the protection scope of this application.

Claims

1. A freely assembled and installed anti-virus filter box, characterized in that: It comprises a main housing (1), a filter assembly (2) and a limit assembly (3); The main housing (1) is cylindrical and has a first end (11) and a second end (12) opposite to each other; the outer diameter of the first end (11) is smaller than the inner diameter of the second end (12); and the outer periphery of the first end (11) and the inner periphery of the second end (12) are provided with matching connection structures (4); The filter assembly (2) is arranged in the main housing (1), and the filter assemblies (2) in different main housings (1) are used to protect against the same or different harmful gases; The limiting assembly (3) is fixedly arranged in the main housing (1), and is distributed on a side of the filter assembly (2) close to the first end (11) and a side close to the second end (12), and is used to limit and fix the filter assembly (2).

2. The freely combinable and installable anti-gas filter box according to claim 1, characterized in that: The filter assembly (2) comprises a front filter cotton (21), a rear filter cotton (22) and pre-treatment activated carbon (23); the front filter cotton (21) is arranged on a side of the main housing (1) close to the first end (11); the rear filter cotton (22) is arranged on a side of the front filter cotton (21) close to the second end (12); and the pre-treatment activated carbon (23) is filled between the front filter cotton (21) and the rear filter cotton (22).

3. The freely combinable and installable anti-gas filter box according to claim 1, characterized in that: The limit assembly (3) comprises a front baffle (31) and a rear baffle (32); the front baffle (31) is fixedly arranged at the first end (11), and is densely covered with first through holes (33); the rear baffle (32) is fixedly arranged in the main housing (1), and is located on a side of the filter assembly (2) close to the second end (12); and the rear baffle (32) is densely covered with second through holes (34).

4. The freely combinable and installable anti-gas filter box according to claim 3 is characterized in that: The front baffle plate (31) is integrally formed with the main shell (1); a mounting groove (13) is provided in the main shell (1), and the rear baffle plate (32) is fixedly disposed in the mounting groove (13).

5. The freely combinable and installable anti-gas filter box according to claim 1, characterized in that: The limiting assembly (3) comprises a front limiting net and a rear limiting net; the front limiting net is fixedly arranged at the first end (11); the rear limiting net is fixedly arranged in the main shell (1) and is located on a side of the filter assembly (2) close to the second end (12).

6. The freely combinable and installable anti-gas filter box according to claim 5, characterized in that: The front limiting net is welded and fixed to the first end (11); the rear limiting net is fixedly arranged in the annular frame, and an embedding groove is arranged in the main shell (1), and the annular frame is fixedly embedded in the embedding groove.

7. The freely combinable and installable anti-gas filter box according to claim 1, characterized in that: The connection structure (4) comprises an external thread (41) arranged on the outer periphery of the first end (11) and an internal thread (42) arranged on the inner periphery of the second end (12).

8. The freely combinable and installable anti-gas filter box according to claim 1, characterized in that: The connection structure (4) comprises 2-4 card blocks evenly distributed on the outer periphery of the first end (11) and 2-4 connection card slots evenly distributed on the inner periphery of the second end (12).

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