CN216824541U

CN216824541U - Filter element

Info

Publication number: CN216824541U
Application number: CN202220223588.7U
Authority: CN
Inventors: 刘迅; 刘伟; 夏志卿; 邓钢
Original assignee: Chengdu Shennongtang Industry Co ltd
Current assignee: Chengdu Shennongtang Industry Co ltd
Priority date: 2022-01-26
Filing date: 2022-01-26
Publication date: 2022-06-28
Anticipated expiration: 2032-01-26

Abstract

The utility model belongs to the technical field of respiratory protection and air purification, concretely relates to filter element. The technical scheme is as follows: the utility model provides a filter element, includes the support, filters piece and dustcoat be provided with a plurality of air vents on support and the dustcoat respectively, it forms the filtering surface and makes and form confined filtration cavity in the support to filter the piece cup joint on the support, be provided with on the support with filter the induction port of cavity intercommunication, the dustcoat cup joints and filters the piece periphery. The utility model provides a can reduce suction resistance's filter element.

Description

Filter element

Technical Field

The utility model belongs to the technical field of respiratory protection and air purification, concretely relates to filter element.

Background

At present, the respiratory protection products such as labor protection masks, daily protection masks, medical protection masks, gas masks and the like have large respiratory resistance of filter elements, so that the breathing is suffocated and the products cannot be worn for a long time, the whole-course labor protection cannot be realized, and various diseases such as pneumoconiosis and the like are caused.

In addition, most mask filter materials are directly exposed outside at present, and the functions of water resistance, fire resistance, scratch resistance and the like are not strong, so that the service life is short, and a plurality of masks cannot be provided with filter elements or are inconvenient to replace the filter elements, and the use cost is high.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems existing in the prior art, the present invention provides a filter element capable of reducing the suction resistance.

The utility model discloses the technical scheme who adopts does:

the utility model provides a filter element, includes the support, filters piece and dustcoat be provided with a plurality of air vents on support and the dustcoat respectively, it forms the filtering surface and makes and form confined filtration cavity in the support to filter the piece cup joint on the support, be provided with on the support with filter the induction port of cavity intercommunication, the dustcoat cup joints and filters the piece periphery.

The utility model discloses a filter the piece cover and establish on the support, and filter and be bag form, compare in the slice filter piece of traditional respirator, the utility model discloses a filter the area greatly increased that admits air to the resistance of breathing in has been reduced. Under the condition of small air suction resistance, the user can not feel suffocating after wearing the mask for a long time, thereby being used for whole-course protection of labor.

As the utility model discloses a preferred scheme, be provided with sealed arch on the support, the border of filtering the piece compresses tightly between sealed arch and dustcoat. The sealing bulge can play a role in sealing, and the situation that unfiltered air enters the filtering cavity in the bracket from the gap between the bracket and the filtering piece is avoided. When the filter piece is sleeved on the support and the outer cover is sleeved on the filter piece, the edge of the filter piece can be tightly pressed by the sealing bulge and the outer cover, so that the support, the filter piece and the outer cover are prevented from being loosened relatively.

As the utility model discloses a preferred scheme, it is one end open-ended bag form to filter the piece, it is sealed through the sealed protruding cooperation clamp of dustcoat on with the support to filter the open end border of piece, just it covers all air vents on the support completely to filter the piece. All air passing through the vent holes on the bracket passes through the filter piece, so that the condition that unfiltered air passes through the vent holes on the bracket and enters the air suction port is avoided, and effective filtration is ensured.

As the utility model discloses an optimal scheme, filter and can dismantle between the support and be connected, can conveniently change filtering the piece to corresponding reduction use cost.

As the utility model discloses an optimal scheme, be provided with the buckle groove on the support, be provided with buckle spare on the dustcoat, during dustcoat and leg joint, buckle spare and buckle groove lock. The buckle piece and the buckle groove are conveniently tripped and clamped, so that the outer cover and the support are more convenient to disassemble and assemble, and the filtering piece is convenient to replace.

As the utility model discloses an optimal scheme, be provided with the boss on the support, the buckle groove sets up on the boss. The boss is arranged on the support, so that the buckling groove can be arranged at a position which can be reached by the buckling piece on the outer cover, and the outer cover and the support can be conveniently disassembled and assembled.

As the utility model discloses an optimized scheme, the both sides of support all are provided with the buckle groove, and the both sides of dustcoat all are provided with buckle spare, the buckle groove lock of buckle spare and homonymy. The both sides of dustcoat all are connected through the buckle groove on buckle spare and the support to the support is connected more reliably with the dustcoat.

As a preferable aspect of the present invention, the vent hole in the housing is inclined with respect to the surface of the housing. When the vent hole on the outer cover is obliquely arranged, the inclined surface of the vent hole can prevent water or block foreign matters and can prevent the foreign matters from being scratched. The inclined vent holes do not affect the air passage. Thus, the air vent on the outer cover of the utility model can play the role of protecting the filtering material.

In a preferred embodiment of the present invention, the air vent in the housing is inclined toward a side close to the air inlet in the outward-inward direction. The vent hole on the outer cover inclines towards one side close to the air suction port, so that the external air enters the outer cover towards the direction close to the face of a human body, and the smoothness of the vent hole is ensured.

As the preferred scheme of the utility model, be provided with the wearing hole that is used for connecting the fag end on the dustcoat. The design has the wearing hole on the dustcoat, and the fag end of being convenient for passes the fixed filter of wearing hole, can dress each position of health with this filter.

The utility model has the advantages that:

1. the utility model discloses a filter the piece cover and establish on the support, and filter and be bag form, compare in the slice filter piece of traditional respirator, the utility model discloses a filter the area greatly increased that admits air to the resistance of breathing in has been reduced. Under the condition of small air suction resistance, the user can not feel suffocating after wearing the mask for a long time, thereby being used for whole-course protection of labor.

2. The utility model discloses a can dismantle the connection between support, the filtration piece and the dustcoat, can change the filtration piece to corresponding reduction use cost.

3. The air vent on the outer cover inclines, and the inclined surface of the air vent can prevent water or block foreign matters and can prevent the filtering piece from being wiped and hung, so that the filtering piece is prevented from being directly exposed outside.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figures, 1-stent; 2-a filter element; 3-a housing; 4-air suction port; 5-a snap groove; 6-sealing the bulge; 7-a fastener; 8-wearing holes; 9-boss.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

As shown in figure 1, a filter element, including support 1, filter piece 2 and dustcoat 3 be provided with a plurality of air vents on support 1 and the dustcoat 3 respectively, filter piece 2 cup joints and forms the filtering surface and make and form confined filtration cavity in the support 1 on the support 1, be provided with on the support 1 with filter the induction port 4 of cavity intercommunication, dustcoat 3 cup joints and connects in the periphery of filter piece 2, and the clean air after filtering flows out from induction port 4 and connects air duct, face guard confession people and inhale.

The utility model discloses a filter 2 covers and establish on support 1, and filter 2 and be bag form, compare in the slice of traditional respirator and filter 2, the utility model discloses a filter 2's the area greatly increased that admits air to the resistance of breathing in has been reduced. Under the condition of small air suction resistance, the user can not feel suffocating after wearing the mask for a long time, thereby being used for whole-course protection of labor.

In order to ensure reliable sealing between the support 1 and the filter member 2, a sealing protrusion 6 is provided on the support 1, the edge of the filter member 2 is compressed between the sealing protrusion 6 and the outer cover 3, specifically, the edge of the opening end of the filter member 2 is clamped and sealed by the outer cover 3 and the sealing protrusion 6 on the support 1, and the filter member 2 completely covers all the vent holes on the support 1. The sealing projection 6 serves as a seal to prevent unfiltered air from entering the filter chamber in the holder through the gap between the holder 1 and the filter element 2. When the filter element 2 is sleeved on the bracket 1 and the outer cover 3 is sleeved on the filter element 2, the edge of the filter element 2 can be tightly pressed by the sealing bulge 6 and the outer cover 3, so that the bracket 1, the filter element 2 and the outer cover 3 are prevented from being loosened relatively.

It should be noted that all the ventilation holes in the bracket 1 are located in the space enclosed by the sealing protrusion 6 and the filter element 2. All air passing through the vent holes in the bracket 1 passes through the filter element 2, so that the situation that unfiltered air passes through the vent holes in the bracket 1 and enters the air suction port 4 is avoided, and effective filtration is ensured.

The filtering piece 2 can select filtering layers with different functions and thicknesses, can be used for filtering particles such as dust, smoke, fog, microorganisms and the like, and can also be used for filtering toxic and harmful substances.

The filtering piece 2 is detachably connected with the bracket 1. Support 1 can be dismantled with filtering piece 2 and be connected, can conveniently change filtering piece 2. Specifically, because filter 2 cover establishes on support 1, and compress tightly by sealed protruding 6, buckle 7 block on buckle groove 5 and the dustcoat 3 on support 1, then support 1, filter 2 and the dustcoat 3 between for can dismantle the connection. The filtering piece 2 can be taken down from the bracket 1, so that the filtering piece 2 is convenient to replace, and the use cost is correspondingly reduced.

Furthermore, the support 1 is provided with a boss 9, the two sides of the boss 9 are provided with the buckling grooves 5, the outer cover 3 is provided with two buckling pieces 7, and when the outer cover 3 is connected with the support 1, the buckling pieces 7 are buckled with the buckling grooves 5 on the same side. Convenient dropout and block between buckle spare 7 and the buckle groove 5 to the dismouting of dustcoat 3 and support 1 is more convenient, is convenient for change filtering piece 2. Both sides of the outer cover 3 are connected with the clamping groove 5 on the support 1 through the clamping piece 7, so that the support 1 is more reliably connected with the outer cover 3. Of course, as a person skilled in the art will also appreciate, a design is also conceivable in which the latch 7 is provided on the holder 1 and the latch groove 5 is provided on the housing 3.

The outer cover 3 is provided with a plurality of vent holes. When air is sucked, external air is introduced through the air vent hole, so that the air can smoothly enter the filter member 2 to be filtered. The ventilation holes in the housing 3 are inclined with respect to the surface of the housing 3. When the vent holes on the outer cover 3 are obliquely arranged, the inclined surfaces of the vent holes can prevent water or foreign matters and can prevent the foreign matters from being scratched. The inclined vent holes do not affect the air passage. Thus, the air vent on the outer cover 3 of the utility model can play the role of protecting the filtering material.

The ventilation holes in the housing 3 are inclined toward the side near the suction port 4 in the outward-inward direction. The vent hole on the outer cover 3 inclines towards one side close to the air suction port 4, so that the external air enters the outer cover 3 towards the direction close to the face of a human body, and the smoothness of the vent hole is ensured.

The outer cover 3 is provided with a wearing hole 8 for connecting a rope belt. The design has wearing hole 8 on the dustcoat 3, and the fag end of being convenient for passes wearing hole 8 and fixes filtering piece 2, can dress each position of health with this filtering piece 2.

The support 1 is provided with vent holes, and the vent holes in the support 1 are positioned in the coverage range of the filter piece 2. The support 1 is provided with a vent hole to ensure that the air filtered by the filter element 2 can smoothly pass through the support 1 and is inhaled by a user from the air suction port 4.

The present invention is not limited to the above-mentioned optional embodiments, and any other products in various forms can be obtained by anyone under the teaching of the present invention, and any changes in the shape or structure thereof, all the technical solutions falling within the scope of the present invention, are within the protection scope of the present invention.

Claims

1. The utility model provides a filter element, its characterized in that includes support (1), filters piece (2) and dustcoat (3) be provided with a plurality of air vents on support (1) and dustcoat (3) respectively, it forms filtering surface and makes and form confined filtration cavity in support (1) to filter piece (2) cup joint on support (1), be provided with on support (1) and filter induction port (4) that the cavity communicates, dustcoat (3) cup joint and are filtering piece (2) periphery.

2. A filter element according to claim 1, characterised in that the holder (1) is provided with a sealing bead (6), and that the edge of the filter element (2) is pressed between the sealing bead (6) and the housing (3).

3. A filter element according to claim 2, wherein the filter element (2) is in the form of a bag open at one end, the open end edge of the filter element (2) is clamped and sealed by the housing (3) in cooperation with the sealing protrusion (6) of the holder (1), and the filter element (2) completely covers all the ventilation holes of the holder (1).

4. A filter element according to claim 1, wherein the filter element (2) is detachably connected to the support (1).

5. A filter element according to claim 1, wherein the bracket (1) is provided with a snap groove (5), the cover (3) is provided with a snap member (7), and the snap member (7) is snapped into the snap groove (5) when the cover (3) is connected to the bracket (1).

6. A filter element according to claim 5, characterised in that the bracket (1) is provided with a boss (9), and the snap groove (5) is provided on the boss (9).

7. A filter element according to claim 5, wherein both sides of the bracket (1) are provided with snap grooves (5), both sides of the housing (3) are provided with snap members (7), and the snap members (7) are snapped into the snap grooves (5) on the same side.

8. A filter element according to claim 1, characterised in that the ventilation holes in the housing (3) are inclined with respect to the surface of the housing (3).

9. A filter element according to claim 1, characterised in that the ventilation openings in the housing (3) are inclined to the side adjacent to the suction opening (4) in the outer to inner direction.

10. A filter element according to any one of claims 1-9, characterised in that the housing (3) is provided with a wearing hole (8) for attaching a string.