Breathing filter with anti-poison structure

Abstract

The utility model discloses a breathing filter with an anti-poison structure, which comprises a filter body, a filter screen is mounted in the filter body, an air filter layer is mounted at the top end of the filter screen, an anti-poison filter box is mounted at the top end of the air filter layer, and filter box openings are arranged at the upper end and the lower end of the anti-poison filter box. And an activated carbon layer is arranged in the anti-poison filter box, a bacteria filter layer is arranged at the top end of the activated carbon layer, and a dust blocking layer is arranged at the top end of the bacteria filter layer. Through the arrangement of the anti-poison filtering structure, during use, gas enters the filter screen in the filter body for primary impurity filtration, then enters the air filter layer for small molecule dust filtration, and then enters the anti-poison filter box through the filter box opening; a dust blocking layer, a bacteria filtering layer and an activated carbon layer in the anti-poison filtering box can filter and adsorb harmful gas, purified air is conveyed out from an air outlet in the top end of a filtering cover, and therefore the anti-poison filtering function is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of filters, in particular to a breathing filter with a poison-proof structure. Background Art

[0002] A breathing filter is a filter material used in respiratory equipment. It can filter out and block bacteria in the patient's respiratory tract, avoid cross-infection of the anesthesia ventilator, and prevent lung infection in the patient.

[0003] In daily use, the respiratory filter is mainly used to filter and block bacteria. However, when patients inhale toxic gases and then use them, they cannot effectively filter the toxic gases, which weakens the effect and function of the respiratory filter. Therefore, we propose a respiratory filter with an anti-toxic structure to improve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a breathing filter with an anti-toxic structure to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a breathing filter with an anti-virus structure, comprising a filter body, a filter screen installed inside the filter body, an air filter layer installed on the top of the filter screen, an anti-virus filter box installed on the top of the air filter layer, filter box ports are provided at the upper and lower ends of the anti-virus filter box, an activated carbon layer is provided inside the anti-virus filter box, a bacteria filter layer is provided on the top of the activated carbon layer, a dust barrier layer is provided on the top of the bacteria filter layer, and support legs are provided at the bottom of the anti-virus filter box.

[0006] Preferably, the filter screen, the air filter layer and the anti-gas filter box are connected in sequence, and the filter screen, the air filter layer and the anti-gas filter box penetrate the interior of the filter body.

[0007] Preferably, the dust-blocking layer, the bacteria-filtering layer and the activated carbon layer penetrate the interior of the filter body, and the filter box port is connected to the dust-blocking layer, the bacteria-filtering layer and the activated carbon layer through the anti-virus filter box.

[0008] Preferably, a filter cover is installed at the external top end of the filter body, an external interface is installed at the top end of the filter cover, a sealing cover is installed at the top end of the filter cover, an air outlet is installed at the top end of the filter cover, a telescopic spring is installed at the bottom of the filter cover, a fixing column is connected to the bottom of the telescopic spring, an internal delivery pipe is installed at the bottom of the filter cover, and a fixing groove is opened at the top end of the anti-gas filter box.

[0009] Preferably, the air outlet is connected to the inner delivery pipe through a filter cover, and the fixing column is connected to the filter cover through a telescopic spring.

[0010] Preferably, the filter cover is threadedly connected to the filter body, so that the inner delivery pipe at the bottom of the filter cover contacts the anti-gas filter box inside the filter body, and the fixing column at the bottom of the filter cover is snap-fitted with the fixing groove at the top of the anti-gas filter box.

[0011] Preferably, an inner tube is provided at the bottom of the filter body, an outer inlet pipe is provided outside the inner tube, an air inlet is installed at the bottom of the inner tube, an air inlet slot is opened inside the air inlet, an anti-slip groove is installed inside the air inlet slot, a connecting strip is connected to the bottom of the outer inlet pipe, a protective cover is connected to the bottom end of the connecting strip, and a clamping ring is provided at the front end of the protective cover.

[0012] Preferably, the protective cover is connected to the external inlet pipe through a connecting strip, the snap ring at the front end of the protective cover is snapped with the air inlet groove inside the air inlet, the anti-slip groove runs through the inside of the air inlet groove, and the air inlet is connected to the filter body through the external inlet pipe.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the breathing filter with anti-toxic structure not only realizes the anti-toxic filtering function, realizes the filter material fixing function, but also realizes the anti-falling function;

[0014] (1) By setting up the anti-virus filtering structure, the utility model has the following advantages: when in use, the gas enters the filter screen inside the filter body through the external inlet pipe for preliminary impurity filtration, then enters the air filter layer for small molecule dust filtration, and then enters the interior of the anti-virus filter box through the filter box opening. The dust-blocking layer, bacteria filtration layer and activated carbon layer inside the anti-virus filter box can filter and adsorb harmful gases, allowing the purified air to be transported out from the air outlet at the top of the filter cover, thereby realizing the anti-virus filtering function;

[0015] (2) By setting up the filter material fixing structure, the utility model is beneficial in that: when in use, the filter screen, the air filter layer and the anti-gas filter box are sequentially placed inside the filter body, and then the filter cover is placed on the top of the filter body, so that the inner delivery pipe at the bottom of the filter cover is engaged with the filter box opening at the top of the anti-gas filter box, and the filter cover at the top of the filter body is rotated to insert the fixing column at the bottom of the filter cover into the fixing groove at the top of the anti-gas filter box, so as to fix the anti-gas filter box inside the filter body, thereby realizing the filter material fixing function;

[0016] (3) By providing an anti-falling structure, the utility model has the following advantages: the protective cover is flipped open from the bottom of the outer inlet pipe and the inner pipe, the connecting pipe is inserted into the air inlet slot of the air inlet between the outer inlet pipe and the inner pipe, and the anti-slip groove strip inside the air inlet slot bites the connecting pipe to prevent the connecting pipe from falling off, thereby realizing the anti-falling function. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1This is a front view structural schematic diagram of the utility model;

[0018] Figure 2 It is a schematic diagram of the cross-sectional structure of the filter body of the utility model;

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the anti-gas filter box of the utility model;

[0020] Figure 4 It is a schematic diagram of the cross-sectional structure of the air inlet of the utility model.

[0021] In the figure: 1. air outlet; 2. sealing cover; 3. external interface; 4. filter cover; 5. anti-virus filter box; 6. air filter layer; 7. filter body; 8. external inlet pipe; 9. internal pipe; 10. air inlet; 11. telescopic spring; 12. internal delivery pipe; 13. fixing column; 14. filter net; 15. fixing groove; 16. filter box mouth; 17. dust barrier layer; 18. bacteria filter layer; 19. activated carbon layer; 20. supporting leg; 21. protective cover; 22. clamping ring; 23. connecting strip; 24. air inlet slot; 25. anti-slip groove strip. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example 1: Please refer to Figure 1-4 A respiratory filter with an anti-virus structure comprises a filter body 7, a filter screen 14 is installed inside the filter body 7, an air filter layer 6 is installed on the top of the filter screen 14, an anti-virus filter box 5 is installed on the top of the air filter layer 6, filter box ports 16 are arranged at the upper and lower ends of the anti-virus filter box 5, an activated carbon layer 19 is arranged inside the anti-virus filter box 5, a bacteria filter layer 18 is arranged on the top of the activated carbon layer 19, a dust blocking layer 17 is arranged on the top of the bacteria filter layer 18, and a supporting leg 20 is arranged at the bottom of the anti-virus filter box 5;

[0024] The filter screen 14, the air filter layer 6 and the anti-virus filter box 5 are connected in sequence, the filter screen 14, the air filter layer 6 and the anti-virus filter box 5 penetrate the interior of the filter body 7, the dust blocking layer 17, the bacteria filter layer 18 and the activated carbon layer 19 penetrate the interior of the filter body 7, and the filter box port 16 is connected with the dust blocking layer 17, the bacteria filter layer 18 and the activated carbon layer 19 through the anti-virus filter box 5;

[0025] Specifically, Figure 1 and Figure 3As shown, by setting up an anti-virus filtering structure, when in use, the gas enters the filter mesh 14 inside the filter body 7 through the external inlet pipe 8 for preliminary impurity filtration, then enters the air filter layer 6 for small molecule dust filtration, and then enters the interior of the anti-virus filter box 5 through the filter box port 16. The dust-blocking layer 17, bacterial filter layer 18 and activated carbon layer 19 inside the anti-virus filter box 5 can filter and adsorb harmful gases, and allow the purified air to be transported out from the air outlet 1 at the top of the filter cover 4, thereby realizing the anti-virus filtering function.

[0026] Embodiment 2: A filter cover 4 is installed at the external top of the filter body 7, an external interface 3 is installed at the top of the filter cover 4, a sealing cover 2 is installed at the top of the filter cover 4, an air outlet 1 is installed at the top of the filter cover 4, a telescopic spring 11 is installed at the bottom of the filter cover 4, a fixing column 13 is connected to the bottom of the telescopic spring 11, an inner delivery pipe 12 is installed at the bottom of the filter cover 4, and a fixing groove 15 is opened at the top of the anti-gas filter box 5;

[0027] The air outlet 1 is connected to the inner delivery pipe 12 through the filter cover 4, the fixing column 13 is connected to the filter cover 4 through the telescopic spring 11, the filter cover 4 is threadedly connected to the filter body 7, so that the inner delivery pipe 12 at the bottom of the filter cover 4 is in contact with the anti-gas filter box 5 inside the filter body 7, and the fixing column 13 at the bottom of the filter cover 4 is clamped with the fixing groove 15 at the top of the anti-gas filter box 5;

[0028] Specifically, Figure 1 and Figure 2 As shown, by setting the filter material fixing structure, when in use, the filter screen 14, the air filter layer 6 and the anti-gas filter box 5 are sequentially placed into the interior of the filter body 7, and then the filter cover 4 covers the top of the filter body 7, so that the internal delivery pipe 12 at the bottom of the filter cover 4 is engaged with the filter box opening 16 at the top of the anti-gas filter box 5, and the filter cover 4 at the top of the filter body 7 is rotated to insert the fixing column 13 at the bottom of the filter cover 4 into the fixing groove 15 at the top of the anti-gas filter box 5, and the anti-gas filter box 5 inside the filter body 7 is fixed, thereby realizing the filter material fixing function.

[0029] Embodiment 3: An inner pipe 9 is provided at the bottom of the filter body 7, an outer inlet pipe 8 is provided outside the inner pipe 9, an air inlet 10 is installed at the bottom of the inner pipe 9, an air inlet slot 24 is provided inside the air inlet 10, an anti-slip groove 25 is installed inside the air inlet slot 24, a connecting strip 23 is connected to the bottom of the outer inlet pipe 8, a protective cover 21 is connected to the bottom end of the connecting strip 23, and a clamping ring 22 is provided at the front end of the protective cover 21;

[0030] The protective cover 21 is connected to the outer inlet pipe 8 through the connecting strip 23, the clamping ring 22 at the front end of the protective cover 21 is clamped with the air inlet slot 24 inside the air inlet 10, the anti-slip groove strip 25 runs through the inside of the air inlet slot 24, and the air inlet 10 is connected to the filter body 7 through the outer inlet pipe 8;

[0031] Specifically, Figure 1 and Figure 4 As shown, by setting an anti-falling structure, the protective cover 21 is flipped open from the bottom of the outer inlet pipe 8 and the inner pipe 9, and the connecting pipe is inserted into the air inlet groove 24 of the air inlet port 10 between the outer inlet pipe 8 and the inner pipe 9, so that the anti-slip groove 25 inside the air inlet groove 24 bites the connecting pipe to prevent the connecting pipe from falling off, thereby realizing the anti-falling function.

[0032] Working principle: When using the utility model, firstly, the filter screen 14, the air filter layer 6 and the anti-gas filter box 5 are sequentially placed in the interior of the filter body 7, and then the filter cover 4 covers the top of the filter body 7, so that the inner delivery pipe 12 at the bottom of the filter cover 4 contacts the filter box opening 16 at the top of the anti-gas filter box 5, and then the filter cover 4 at the top of the filter body 7 is rotated to allow the fixing column 13 at the bottom of the filter cover 4 to be inserted into the fixing groove 15 at the top of the anti-gas filter box 5, and the anti-gas filter box 5 inside the filter body 7 is fixed, and then the protective cover 21 at the bottom of the inner pipe 9 at the bottom of the filter body 7 is flipped open from the bottom of the inner pipe 9, The inside of the air inlet 10 between the connecting pipe and the external inlet pipe 8 and the internal pipe 9 is brought into contact with the air inlet slot 24, and the anti-slip groove strip 25 inside the air inlet slot 24 bites the connecting pipe. Finally, the gas enters the filter mesh 14 inside the filter body 7 through the external inlet pipe 8 for preliminary impurity filtration, and then enters the air filter layer 6 for small molecule dust filtration, and then enters the interior of the anti-virus filter box 5 through the filter box port 16. The dust-blocking layer 17, bacterial filtration layer 18 and activated carbon layer 19 inside the anti-virus filter box 5 can filter and adsorb harmful gases, so that the purified air is delivered out from the air outlet 1 at the top of the filter cover 4.

[0033] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A breathing filter with an anti-toxic structure, comprising a filter body (7), characterized in that: A filter screen (14) is installed inside the filter body (7), an air filter layer (6) is installed on the top of the filter screen (14), an anti-virus filter box (5) is installed on the top of the air filter layer (6), filter box ports (16) are provided at the upper and lower ends of the anti-virus filter box (5), an activated carbon layer (19) is provided inside the anti-virus filter box (5), a bacterial filter layer (18) is provided on the top of the activated carbon layer (19), a dust blocking layer (17) is provided on the top of the bacterial filter layer (18), and a supporting leg (20) is provided at the bottom of the anti-virus filter box (5).

2. The breathing filter with anti-toxic structure according to claim 1, characterized in that: The filter net (14), the air filter layer (6) and the anti-gas filter box (5) are connected in sequence, and the filter net (14), the air filter layer (6) and the anti-gas filter box (5) penetrate the interior of the filter body (7).

3. The breathing filter with anti-toxic structure according to claim 1, characterized in that: The dust-blocking layer (17), the bacterial filtering layer (18) and the activated carbon layer (19) penetrate the interior of the filter body (7), and the filter box port (16) is connected to the dust-blocking layer (17), the bacterial filtering layer (18) and the activated carbon layer (19) through the anti-virus filter box (5).

4. The breathing filter with anti-toxic structure according to claim 1, characterized in that: A filter cover (4) is installed at the external top end of the filter body (7), an external interface (3) is installed at the top end of the filter cover (4), a sealing cover (2) is installed at the top end of the filter cover (4), an air outlet (1) is installed at the top end of the filter cover (4), a telescopic spring (11) is installed at the bottom end of the filter cover (4), a fixing column (13) is connected to the bottom end of the telescopic spring (11), an internal conveying pipe (12) is installed at the bottom end of the filter cover (4), and a fixing groove (15) is provided at the top end of the anti-gas filter box (5).

5. The breathing filter with anti-poison structure according to claim 4, characterized in that: The air outlet (1) is connected to the inner delivery pipe (12) via the filter cover (4), and the fixed column (13) is connected to the filter cover (4) via a telescopic spring (11).

6. The breathing filter with anti-toxic structure according to claim 4, characterized in that: The filter cover (4) is threadedly connected to the filter body (7), so that the inner delivery pipe (12) at the bottom of the filter cover (4) contacts the anti-gas filter box (5) inside the filter body (7), and the fixing column (13) at the bottom of the filter cover (4) is snap-fitted with the fixing groove (15) at the top of the anti-gas filter box (5).

7. The breathing filter with anti-toxic structure according to claim 1, characterized in that: An inner pipe (9) is arranged at the bottom of the filter body (7), an outer inlet pipe (8) is arranged outside the inner pipe (9), an air inlet (10) is installed at the bottom of the inner pipe (9), an air inlet slot (24) is opened inside the air inlet (10), an anti-slip groove (25) is installed inside the air inlet slot (24), a connecting strip (23) is connected to the bottom of the outer inlet pipe (8), a protective cover (21) is connected to the bottom end of the connecting strip (23), and a clamping ring (22) is arranged at the front end of the protective cover (21).

8. The breathing filter with anti-toxic structure according to claim 7, characterized in that: The protective cover (21) is connected to the external inlet pipe (8) via a connecting strip (23); the clamping ring (22) at the front end of the protective cover (21) is clamped to the air inlet slot (24) inside the air inlet (10); the anti-slip slot (25) passes through the inside of the air inlet slot (24); and the air inlet (10) is connected to the filter body (7) via the external inlet pipe (8).

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