Filter cartridge capable of prolonging poison filtering time of filter material

Abstract

The utility model discloses a filter cartridge and filter equipment for prolonging filter material filter time, and relates to the technical field of air filtration, the filter cartridge comprises a filter cartridge, the filter cartridge is composed of a filter shell, a lower filter disc, an upper filter disc and a filter cover, the filter shell and the filter cover are connected through glue, the upper filter disc is arranged in a cavity formed by the filter shell and the filter cover, and the lower filter disc is arranged in the cavity. The lower filter disc positioned in the accommodating cavity is arranged between the upper filter disc and the filter cover, and a filter material for adsorbing poison gas is laid between the upper filter disc and the lower filter disc. The application has the effects that each part of the used filter material is uniformly filtered, the service life of the filter material is prolonged, toxic and harmful gases are effectively adsorbed, and the use amount of the filter material can be increased and the service life of the filter material can be prolonged on the premise of meeting the breathing resistance and weight.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of air filtration, in particular to a filter box capable of prolonging the toxic gas filtering time of filter material. BACKGROUND

[0002] In a harmful gas or vapor, particulate matter (such as toxic smoke, toxic fog) and other harmful respiratory system environment, the respiratory system relying on the wearer's autonomous breathing to overcome the resistance of the component has great harm and risk.

[0003] The existing filter box has the problem of short service life of filter material, especially when dealing with high-concentration harmful gas, the filter material will soon reach saturation state, resulting in sharp decline of filtering effect, and the filter material of the filter box is not fully used, only the hole corresponding to the inhalation valve and the surrounding area of the filter material are fully used, and the filter poison and filter smoke performance is easily lost. CONTENT OF THE UTILITY MODEL

[0004] In order to improve the problem that the filter material of the existing filter box is not fully used, the filter poison and filter smoke performance is affected, and the filter material adsorption cannot be effectively and fully utilized, the application provides a filter box capable of prolonging the toxic gas filtering time of filter material.

[0005] The filter box capable of prolonging the toxic gas filtering time of filter material provided by the application adopts the following technical scheme:

[0006] The filter box capable of prolonging the toxic gas filtering time of filter material comprises a filter box composed of a filter shell, a lower filter sheet, an upper filter sheet and a filter cover, the filter shell and the filter cover are connected by adhesive, the upper filter sheet is arranged in a cavity formed by the filter shell and the filter cover, the lower filter sheet is arranged between the upper filter sheet and the filter cover in the cavity, and the space formed by the upper filter sheet and the lower filter sheet is paved with filter material for adsorbing toxic gas.

[0007] When toxic and harmful gas passes through the filter box, the filter material paved between the upper filter sheet and the lower filter sheet filters the air, the cavity formed by the filter cover and the filter shell can place sufficient filter material, the use amount of filter material is increased, and the toxic and harmful gas can be uniformly filtered during use, so that the use time of the filter material is prolonged.

[0008] Optionally, the shape and size of the upper filter sheet and the lower filter sheet are the same, and the shape and size of the cavity are the same as those of the upper filter sheet / lower filter sheet.

[0009] By adopting the above technical scheme, the size and specification of the upper filter sheet and the lower filter sheet are consistent, so that the filter material, which is activated carbon, can be placed between the two filter sheets, and the activated carbon can filter and absorb toxic gas when the air flows.

[0010] Optionally, the filter cover is in a grid structure.

[0011] By adopting the technical scheme, the grid-shaped structure improves the air circulation.

[0012] Optionally, the filter shell is further provided with a filter material support rib, and a gap is formed between the filter material support rib and the filter shell.

[0013] By adopting the technical scheme, the gap formed facilitates the uniform circulation of air during breathing, so that the filter area is not so concentrated, and the filter time is prolonged.

[0014] Optionally, the filter shell is provided with a through hole, and a spiral buckle structure is arranged in the through hole, and the locking spiral buckle structure is used to lock the filter shell and the wearing mask.

[0015] By adopting the technical scheme, the spiral buckle structure realizes the fixation of the filter shell and the mask, and the rubber gasket is sleeved on the mask to realize sealing fixation, thereby improving the sealing property between the filter shell and the wearing mask.

[0016] Optionally, the spiral buckle structure comprises a spiral buckle and a support beam, and the support beam is arranged in the through groove, and the spiral buckle is fixed on the support beam.

[0017] By adopting the technical scheme, one side of the support beam abuts against the lower filter sheet, and the other side is fixed with the spiral buckle, the mask is formed with a spiral assembly opening matched with the spiral buckle, and after the spiral buckle and the spiral assembly opening are buckled and screwed, the filter shell and the mask are fixed.

[0018] Optionally, the spiral buckle is provided with three, and each spiral buckle is arc-shaped.

[0019] By adopting the technical scheme, the three spiral buckles are fixed on the support beam, the adjacent spiral buckles are spaced apart by 120°, and the arc shape improves the locking property of the filter shell and the mask.

[0020] Optionally, the filter cover is further provided with a transverse reinforcing rib and a longitudinal reinforcing rib, and the transverse reinforcing rib and the longitudinal reinforcing rib are fixed on the filter cover in a cross interlaced manner.

[0021] By adopting the technical scheme, the two reinforcing ribs arranged longitudinally and transversely on the filter cover improve the firmness of the overall structure.

[0022] In summary, the present application has at least one of the following beneficial technical effects:

[0023] 1. The toxic and harmful gas passes through the filter material laid between the upper filter sheet and the lower filter sheet, is effectively adsorbed, is uniformly filtered at each place of the filter material during use, and the use time of the filter material is prolonged.

[0024] 2. The filter shell and the filter cover form a cavity, which increases the use of filter material under the premise of meeting the respiratory resistance and weight, and guarantees the performance of filtering toxic smoke. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0026] Figure 1 It is a structural schematic diagram of the filter shell shown in the present application.

[0027] Figure 2 It is an exploded view of the filter box shown in the present application.

[0028] Figure 3 It is a structural schematic diagram of another perspective view of the filter shell shown in the present application.

[0029] Figure 4 It is a structural schematic diagram of the filter cover shown in the present application.

[0030] Reference signs: 1, filter box; 11, filter shell; 12, lower filter sheet; 13, filter cover; 14, upper filter sheet; 2, filter material support rib; 3, spiral buckle structure; 31, spiral buckle; 32, support beam; 41, transverse reinforcing rib; 42, longitudinal reinforcing rib. DETAILED DESCRIPTION

[0031] The following will be described in detail with reference to the accompanying drawings. Figure 1 to the accompanying drawings Figure 4 The present application will be further described in detail.

[0032] The embodiment of the present application discloses a filter box for prolonging the toxic filtering time of filter material.

[0033] Referring to FIG. 1, Figure 2 As shown in the figure, it comprises a filter box 1, which is composed of a filter shell 11, a lower filter sheet 12, an upper filter sheet 14 and a filter cover 13. The height ratio between the filter shell 11 and the filter cover 13 is 2:1. The filter shell 11 and the filter cover 13 are fastened by high-strength adhesive. The upper filter sheet 14 is arranged in the cavity formed by the filter shell 11 and the filter cover 13. The lower filter sheet 12 in the cavity is arranged between the upper filter sheet 14 and the filter cover 13. The filter material for adsorbing toxic gas is laid between the upper filter sheet 14 and the lower filter sheet 12. In the embodiment, activated carbon is used as the adsorbent to filter the toxic or harmful gas passing through the upper filter sheet 14 and the lower filter sheet 12. The filter cover 13 is in a grid structure, which facilitates the flowability when filtering air.

[0034] Referring to FIG. 2, Figure 2As shown, the shape of the upper filter 14 and the lower filter 12 is the same, the shape of the cavity is the same as the upper filter 14 / lower filter 12, the upper filter 14 and the lower filter 12 are both air-permeable materials for gas flow, and the upper filter 14 and the lower filter 12 play a separating role in the cavity, so that the filter material can be placed between the upper filter 14 and the lower filter 12, and the filter poison area is formed in the cavity, and the toxic or harmful gas is prolonged in the filtering time when flowing through.

[0035] Referring to Figure 3 As shown, the filter shell 11 is also provided with a filter material support rib 2, and a gap is formed between the filter material support rib 2 and the filter shell 11, which is convenient for air to flow uniformly when breathing, so that the filter poison area is not so concentrated, the filter poison is uniform, the filter poison time is prolonged, the filter material support rib 2 on the filter shell 11 is laid on the upper filter 14, the upper filter 14 is uniformly laid on the filter material, the filter material is laid on the lower filter 12, and the lower filter 12 is combined with the filter cover 13. High-strength glue is coated on the four peripheral edges of the filter cover 13 and the filter shell 11 in advance, the filter cover 13 and the filter shell 11 are tightly fastened by mutual folding, and the filter box 1 is assembled.

[0036] Referring to Figure 1 As shown, the filter shell 11 is provided with a through hole, and the through hole is fixed with a spiral buckle structure 3, the locking spiral buckle structure 3 is used to lock the filter shell 11 and the face mask, the spiral buckle structure 3 is centrally symmetrically arranged, the spiral buckle structure 3 is composed of a spiral buckle 31 and a support beam 32, the support beam 32 is arranged in the through groove, the spiral buckle 31 is fixed on the support beam 32, the spiral buckle 31 is provided with three, the support beam 32 is also provided with three, and the end of each support beam 32 is gathered at a center point, the angle between adjacent support beams 32 is 120°, the interval between adjacent spiral buckles 31 is 120 degrees, and each spiral buckle 31 is arc-shaped. When the user wears the face mask, the face mask is fixed on the user's face by the elastic band or the plastic band, the spiral buckle 31 is used as a connecting part and a fastening part of the face mask, and a rubber pad is also sleeved on the face mask. A fitting opening matched with the spiral buckle 31 is formed on the face mask. During use, the filter shell 11 is manually twisted, the spiral buckle 31 in the through groove is tightly fastened with the face mask, so as to improve the firmness between the filter shell 11 and the face mask.

[0037] Referring to Figure 4 As shown, the filter cover 13 is also provided with a transverse reinforcing rib 41 and a longitudinal reinforcing rib 42, the transverse reinforcing rib 41 and the longitudinal reinforcing rib 42 are fixed on the filter cover 13 in a cross shape, the transverse reinforcing rib 41 and the longitudinal reinforcing rib 42 are each provided with two, and are fixed on the grid structure of the filter shell 11, so as to improve the structural firmness of the filter shell 11.

[0038] The implementation principle of the filter box 1 for prolonging the filter time of filter material is as follows: when the user is in a toxic and harmful gas environment, the mask is worn on the head, both sides of the mask are provided with assembly openings, and the assembly openings are fastened with the screw buckle structure 3 on the filter box 1, air enters the cavity of the filter shell 11 and the filter cover 13, and when the air passes through the filter material between the upper filter piece 14 and the lower filter piece 12, the toxic and harmful gas is uniformly absorbed and filtered, the use amount of the filter material between the upper filter piece 14 and the lower filter piece 12 is increased, and after the air flows through the upper filter piece 14 and the lower filter piece 12, the air is effectively and fully contacted with the filter material for filtering, the performance of filtering toxic and harmful gas is ensured, meanwhile, the filter material supporting rib 2 generates a gap between the filter shell 11, air is uniformly circulated when breathing, the filtering area is not so concentrated, the toxic gas is uniformly filtered, and the filtering time is prolonged.

[0039] Unless otherwise defined, technical terms or scientific terms used in the present application shall have the usual meaning understood by a person with ordinary skill in the art to which the present application pertains. The terms "first", "second", "third" and the like used in the specification and claims of the present application do not represent any order, number or importance, but are only used to distinguish different components. The terms "one" or "a" and the like do not represent a quantity limitation, but represent the existence of at least one. The terms "including", "containing" and the like mean that the elements or objects appearing before "including" or "containing" cover the elements or objects listed after "including" or "containing" and their equivalents, and do not exclude other elements or objects. The terms "upper", "lower", "left", "right" and the like are only used to represent relative positional relationships, and when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0040] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape, principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A filter box for extending the filtration time of filter media, characterized in that: The filter box (1) is composed of a filter shell (11), a lower filter sheet (12), an upper filter sheet (14) and a filter cover (13), the filter shell (11) and the filter cover (13) are connected by adhesive, the upper filter sheet (14) is arranged in the cavity formed by the filter shell (11) and the filter cover (13), the lower filter sheet (12) is arranged between the upper filter sheet (14) and the filter cover (13) in the cavity, and filter material for adsorbing toxic gas is arranged between the upper filter sheet (14) and the lower filter sheet (12).

2. The filter cartridge of claim 1, wherein: The upper filter sheet (14) and the lower filter sheet (12) have the same shape and size, and the cavity has the same shape and size as the upper filter sheet (14) and the lower filter sheet (12).

3. The filter cartridge of claim 1, wherein: The filter cover (13) has a grid structure.

4. The filter cartridge of claim 1, wherein: The filter shell (11) is further provided with a filter material supporting rib (2), and a gap is formed between the filter material supporting rib (2) and the filter shell (11).

5. The filter cartridge of claim 1, wherein: A through hole is formed in the filter shell (11), a spiral buckle structure (3) is arranged in the through hole, and the spiral buckle structure (3) is used for locking the filter shell (11) and the face mask.

6. The filter cartridge of claim 5, wherein: The spiral buckle structure (3) comprises a spiral buckle (31) and a supporting beam (32), the supporting beam (32) is arranged in the through groove, and the spiral buckle (31) is fixed on the supporting beam (32).

7. The filter cartridge of claim 6, wherein: The spiral buckle (31) is provided with three, each spiral buckle (31) is arc-shaped.

8. The filter cartridge of claim 2, wherein: The filter cover (13) is further provided with a transverse reinforcing rib (41) and a longitudinal reinforcing rib (42), the transverse reinforcing rib (41) and the longitudinal reinforcing rib (42) are fixed on the filter cover (13) in a cross shape.

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