Mask filter element
By using folded HEPA filter paper, activated carbon cotton, and a sealing ring design in the dust mask filter cartridge, the problem of short filter cartridge lifespan is solved, achieving more efficient filtration and odor removal, and improving the wearer's work efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-23
- Publication Date
- 2026-03-31
AI Technical Summary
The filter cartridges of existing dust masks deteriorate in filtration efficiency within a short period of time, requiring frequent replacement and affecting the wearer's work efficiency.
It uses folded HEPA filter paper, combined with activated carbon cotton and a sealing ring design, and is fixed by ultrasonic welding to increase the filtration area and improve the sealing performance.
It extends the lifespan of the filter cartridge, improves the filtration effect, reduces the frequency of replacement, enhances work efficiency, and effectively removes odors and harmful substances from the air.
Smart Images
Figure CN224056486U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of dust mask, specifically to a mask filter core. BACKGROUND
[0002] The dust mask is used for protecting the respiratory organs of human, preventing the toxic gas and dust and other toxic and harmful substances from threatening the health of human, and the dust mask is basically composed of a mask main body and a filter core, which is fixed on the mask main body for convenient replacement and cleaning.
[0003] In the filter core on the market, the filter material is mostly cake type plane filter cotton or filter paper, and such filter cotton needs to be replaced in a short time, otherwise the impurities in the air will adhere to the filter cotton, and the filter area of the filter cotton becomes smaller and smaller, further reducing the filtering effect of the filter cotton, so that the filter assembly needs to be replaced, further affecting the work efficiency of the wearer. SUMMARY
[0004] To solve the above problems, that is, to prolong the use time of the filter assembly and increase the filtering effect, the utility model provides a mask filter core, which comprises a shell, a ventilation opening is arranged at the bottom of the shell, a filter paper matched with the shell is arranged in the shell, the filter paper is arranged in a folded shape, a top cover is arranged on one side of the shell away from the ventilation opening, and a ventilation opening is arranged on the top cover corresponding to the ventilation opening.
[0005] By adopting the above technical scheme, the filter paper is arranged in a folded shape, so that the filter area of the filter paper is increased, and the filtering effect is better.
[0006] The utility model further provides that the filter paper wrinkle part is provided with a fixing clamp.
[0007] By adopting the above technical scheme, the filter paper will not deviate during use, and the filtering effect is not affected.
[0008] The utility model further provides that the shell is circular, the filter paper is fixed in a sealing ring, the sealing ring is made of flexible material, and the sealing ring is arranged in the shell.
[0009] By adopting the above technical scheme, the filter paper is arranged in the sealing ring made of flexible material, and the sealing property is improved when the sealing ring is arranged in the cavity, so that the air can only pass through the filter paper and enter the respiratory organs of the wearer, and the filtering effect is improved.
[0010] The utility model further provides that activated carbon cotton is arranged between the filter paper and the top cover.
[0011] By adopting the above technical scheme, the filtering effect can be improved, and further, the peculiar smell in the air can be removed.
[0012] The utility model discloses further provide for: the connection between the casing with top cover is sealed and fixed with ultrasonic welding.
[0013] By adopting the above technical scheme, the sealing effect can be improved.
[0014] The utility model discloses beneficial effect is:
[0015] 1, set up the filter paper to the folding shape, can make the filter paper's filter area increase, and then make the time of filtration increase, and can reduce the time of wearer to replace the filter assembly, further improved work efficiency.
[0016] 2, install activated carbon cotton, can further increase the filtering effect, make its filter the impurity and toxic gas in the air, and can remove the peculiar smell inhaled air. DETAILED DESCRIPTION
[0017] Figure 1 The utility model discloses a perspective view.
[0018] Figure 2 The utility model discloses a bottom view.
[0019] Figure 3 The utility model discloses an explosion view.
[0020] Figure 4 The utility model discloses a perspective view of the filter assembly.
[0021] Figure 5 The utility model discloses a sectional view of the filter assembly.
[0022] Reference Signs: 1, casing;11, vent;2, top cover;21, air inlet;3, filter assembly;31, filter paper;32, fixed clip;33, sealing ring;34, activated carbon cotton;341, activated carbon soft cotton;342, activated carbon hard cotton. DETAILED DESCRIPTION
[0023] The preferred embodiments of the utility model will be described below with reference to the drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the utility model, and are not intended to limit the protection scope of the utility model.
[0024] The utility model provides a kind of mask filter core, including shell 1, shell 1 is set to circular, circular cavity is equipped in shell 1, the bottom of cavity is provided with air vent 11, air vent 11 is meshed and is set, air circulation can be conveniently, circular rubber material's sealing ring 33 is installed in cavity, rubber material's sealing ring 33 can be well with cavity inner wall, to make filter core sealing better, sealing ring 33 is fixedly installed with filter paper 31, filter paper 31 is selected as HEPA filter paper, filter paper 31 is set to folded shape, can make the area of filter paper 31 increase, to make the area of filtered air increase, use time is longer, further reduce the time of replacing filter assembly 3, can filter the dust and other harmful gases in air to the greatest extent, to improve work efficiency.
[0025] The top angle of the filter paper 31 is installed with six groups of fixed clamps 32, and three groups of fixed clamps 32 are installed on the upper and lower surfaces of the filter paper 31. The fixed clamps 32 are clamped in the middle and both sides of the filter paper 31, and the clamping teeth on the fixed clamps 32 correspond to the top angle of the filter paper 31 for clamping and are fixed with glue. The fixed clamps 32 are made of plastic material, and each group of fixed clamps 32 is fixed to the sealing ring 33 to support the bent part of the filter paper 31 to form a folded shape, prevent the filter paper 31 from rebounding to form a flat shape, and further prevent the filter paper 31 from shifting to affect the filtering effect of the filter paper 31.
[0026] The top cover 2 is fixedly installed on one end of the shell 1 away from the air vent 11, and the connection between the shell 1 and the top cover 2 is fixed and filled with ultrasonic welding, so that the sealing effect of the filter core is better. The top cover 2 is provided with an air inlet 21 corresponding to the air vent on the side away from the shell 1. The filter paper 31 and the top cover 2 are further provided with activated carbon cotton 34, which is made of activated carbon soft cotton 341 and activated carbon hard cotton 342. The activated carbon soft cotton 341 and the activated carbon hard cotton 342 are circular sheets with the same size as the sealing ring 33, which can increase the filtering effect of the filter paper 31 and remove odors in the air passing through the filter paper 31.
[0027] Working principle: when air passes through the air vent 11 and reaches the filter paper 31, the folded filter paper 31 increases the filtering area and prolongs the service life, which can filter the dust and other harmful gases in the air to the greatest extent. The filtered air passes through the activated carbon soft cotton 341 and the activated carbon hard cotton 342 for further filtration and removal of odors in the filtered air, and then enters the respiratory system of the wearer.
[0028] In summary, the filter paper 31 is set to a folded shape, which can increase the filtering area of the filter paper 31, thereby increasing the filtering time and reducing the time for the wearer to replace the filter assembly 3, further improving the work efficiency.
[0029] The active carbon cotton 34 is installed, and the filtering effect can be further increased, so that impurities and toxic gases in the air are filtered out, and odors in inhaled air are removed.
[0030] Although the present application has been described with reference to the preferred embodiments, various modifications and substitutions can be made to the present application without departing from the scope of the present application, and equivalent components can be substituted for the components thereof, and in particular, the technical features mentioned in each embodiment can be combined in any manner, provided that there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
[0031] In the description of the present application, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and other terms indicating direction or positional relationship are based on the direction or positional relationship shown in the drawings, which is merely for the convenience of description, and does not indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are for descriptive purposes only and cannot be understood as indicating or implying relative importance.
[0032] In addition, it should be further pointed out that, in the description of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0033] The term "includes" or any other similar term is intended to cover non-exclusive inclusion, so that a process, article or device / apparatus including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent to the process, article or device / apparatus.
[0034] So far, the technical solutions of the present application have been described in combination with the preferred embodiments shown in the drawings, but those skilled in the art can easily understand that the protection scope of the present application is obviously not limited to these specific embodiments. Without deviating from the principles of the present application, those skilled in the art can make equivalent changes or substitutions to related technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present application.
Claims
1. A mask filter cartridge comprising a housing (1) provided with a ventilation opening (11) in the bottom, characterized in that: The shell (1) is internally provided with a filter paper (31) matched with the shell (1), the filter paper (31) is folded, the shell (1) is provided with a top cover (2) on the side away from the air vent (11), and the top cover (2) is provided with an air exchange opening (21) corresponding to the air vent (11).
2. The mask filter cartridge of claim 1, wherein: A fixing clamp (32) is fixedly arranged at the folded top corner of the filter paper (31) to maintain the folded state of the filter paper (31).
3. The mask filter cartridge of claim 1, wherein: The shell (1) is circular, the filter paper (31) is fixedly arranged in a sealing ring (33), the sealing ring (33) is made of flexible material, and the sealing ring (33) is arranged in the shell (1).
4. The mask filter cartridge of claim 1, wherein: Activated carbon cotton (34) is arranged between the filter paper (31) and the top cover (2).
5. The mask filter cartridge of claim 1, wherein: The connection between the shell (1) and the top cover (2) is sealed and fixed by ultrasonic welding.