CN216456582U

CN216456582U - Rear air inlet long channel type filter cotton cover

Info

Publication number: CN216456582U
Application number: CN202122717713.8U
Authority: CN
Inventors: 牟健
Original assignee: Qingdao Jimeikang Protective Goods Co ltd
Current assignee: Qingdao Jimeikang Protective Goods Co ltd
Priority date: 2021-11-08
Filing date: 2021-11-08
Publication date: 2022-05-10
Anticipated expiration: 2031-11-08

Abstract

The utility model relates to the technical field of dust masks, and discloses a long-channel filter cotton cover capable of allowing air to enter from behind, which comprises a bearing seat detachably connected with two sides of a dust mask, wherein filter cotton is arranged in a placing groove arranged on the outer side of the bearing seat, a filter cotton fixing cover main body used for fixing the filter cotton on the bearing seat is arranged on the outer side of the bearing seat, the filter cotton fixing cover main body comprises a connecting cover and a sealing cover, the connecting cover is arranged on the outer side of the bearing seat, the sealing cover is arranged on the outer side of the connecting cover, an air suction port corresponding to the position of the filter cotton is arranged in the middle of the connecting cover, an air inlet is arranged on one side of the air suction port on the connecting cover, and an air inlet channel is arranged between the connecting cover and the sealing cover. The service life of the filter cotton is prolonged, the filter cotton is of a symmetrical structure, the left side and the right side do not need to be distinguished during installation, the filter cotton is convenient to install, and the production cost is reduced.

Description

Rear air inlet long channel type filter cotton cover

Technical Field

The utility model relates to the technical field of dust masks, in particular to a rear air inlet long-channel type filter cotton cover.

Background

The dust mask is an individual protection article for preventing or reducing dust in air from entering human respiratory organs so as to protect life safety.

The dust mask mainly comprises a mask, filter cotton and a filter cotton fixing cover, and dust in the air is filtered through the filter cotton. The air inlet of the filter cotton fixing cover which is generally used in the market at present is arranged in the middle of the outer side. Therefore, the consumable filter cotton is easily exposed in pollutants, the service life of the filter cotton is greatly reduced, and a large amount of social resources are wasted and consumed. To this end, we provide a rear inlet long channel filter cover.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In order to overcome the defects in the prior art, the utility model provides a rear air inlet long-channel type filter cotton cover, which solves the problems in the background art.

(II) technical scheme

In order to achieve the purpose, the utility model provides the following technical scheme: long passageway formula cotton filter lid admits air after, including dismantling the seat of accepting of connection in the dust mask both sides, accept to install the filter cotton in the standing groove that the seat outside was established, the outside of accepting the seat is equipped with and is used for fixing the filter cotton fixed cover main part on accepting the seat, the filter cotton fixed cover main part is including connecting lid and closing cap, the connecting cap is installed in accepting the seat outside, the closing cap is installed in the outside of connecting the lid, the induction port that corresponds with the filter cotton position is seted up to the centre of connecting the lid, it has seted up the air inlet to lie in induction port one side position on the connecting cap, be provided with inlet channel between connecting cap and the closing cap.

Preferably, the filter cotton has three layers, namely a dust holding layer, a dust holding layer and melt-blown cloth from outside to inside in sequence.

Preferably, the connecting cover is detachably connected to the bearing seat through a clamping block I arranged on the inner wall.

Preferably, the edge of the inner wall of the closed cover is fixedly connected with a second clamping block, and a mounting hole clamped with the second clamping block is formed in the corresponding position of the edge of the outer side of the connected cover.

Preferably, the filter cotton fixing cover main body is of a long strip box body structure.

Preferably, the filter cotton fixing cover main body is of a symmetrical structure.

Preferably, the air inlet is positioned at the rear inner side of the filter cotton fixing cover main body, and the air inlet channel are arranged in an L shape.

(III) advantageous effects

The utility model provides a rear air inlet long-channel type filter cotton cover, which has the following beneficial effects:

1. the utility model adopts a channel type air inlet path mode to prolong the contact path of pollutants and the filter cotton, after the pollutants enter the cover, the pollutants start to contact with the filter cotton from the position close to the air inlet, along with the continuous movement of the pollutants along the air inlet path, the amount of the pollutants is gradually less, the position of the filter cotton far away from the air inlet is difficult to block, the service life of the filter cotton can be prolonged by 3-6 times, and the filter cotton is used together with 2 left and right filter dust cottons, which is equal to double air inlet amount, so that the service time can be effectively prolonged, and the air permeability can be ensured;

2. compared with the structure of a coarse filter layer (filtering large particles), a dust holding layer (filtering medium particles) and a melt-blown layer (filtering small particles) adopted by the traditional filter cotton, the main structure of the filter cotton is improved as follows: the dust containing layer, the dust containing layer and the melt-blown cloth are used for replacing a coarse filter layer of the previous filter cotton with the dust containing layer, and a longer air inlet channel of the cover with the special-shaped structure is used as rough filtration under the action of the coarse filter layer, so that the purpose of filtering large-particle pollutants is achieved by utilizing a simple physical distance remote mode and a simple mode that dust particles face downwards due to gravity, the position of the filter cotton far away from an air inlet can be prevented from being polluted for a long time, the filtering effect is improved, meanwhile, compared with the common filter cotton, the service life is prolonged by about 10 times, and the purpose of using the filter cotton for a longer time is achieved;

3. the air inlets are arranged at two sides of the ears, the direction is opposite to the direction of the ears, and in the same polluted environment, when workers face pollutants, the two sides of the ears are areas with relatively lowest pollutant concentration, so that the inhaled pollutants can be effectively reduced;

4. the utility model has a symmetrical structure, the left side and the right side do not need to be distinguished during installation, the air inlets are always positioned at the two sides of the ears, the installation is convenient, and the production cost is reduced.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic view of the backside structure of the present invention;

FIG. 3 is a schematic view of the closure of the present invention;

FIG. 4 is a schematic view of the structure of the connecting cover of the present invention;

FIG. 5 is a cross-sectional view of the filter mounting cap body of the present invention mounted on a direct mount;

fig. 6 is a schematic structural view of the filter cotton of the present invention.

In the figure: 1. a filter cotton fixing cover main body; 2. a connecting cover; 3. a closure cap; 4. an air inlet; 5. an air suction port; 6. a first clamping block; 7. a second clamping block; 8. mounting holes; 9. a bearing seat; 10. filtering cotton; 11. an intake passage.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 6, the present invention provides a technical solution: the long channel type filter cotton cover of air intake after, including connecting to the bearing seat 9 of the both sides of the dust mask removably, install the filter cotton 10 in the standing groove set up outside the bearing seat 9, there is fixed cover body 1 of filter cotton used for fixing the filter cotton 10 on bearing seat 9 outside the bearing seat 9, the fixed cover body 1 of filter cotton includes connecting cover 2 and closing cap 3, the connecting cover 2 is installed outside the bearing seat 9, the closing cap 3 is installed outside the connecting cover 2, there is air intake 5 corresponding to position of filter cotton 10 in the middle of the connecting cover 2, locate at one side position of air intake 5 and offer the air inlet 4 on the connecting cover 2, there is air intake channel 11 between closing cap 3 and the connecting cover 2, during use, the fixed cover body 1 of filter cotton is installed on bearing seat 9 horizontally, the air inlet 4 of the inboard fixed cover body 1 of filter cotton is located in the both sides of people's ear at this moment, the direction is the opposite, when a worker wears the dust mask to work, when meeting oncoming pollutants, the larger-particle pollutants are blocked by the safety helmet and only fall to the side edge of the filter cotton fixing cover main body 1 and cannot directly enter the air inlet 4, meanwhile, the worker sees the instinctive withdrawal of the pollutants, so that in the same polluted environment, the two sides of the ears are the positions farthest away from the pollutants and are also the areas with the relatively lowest pollutant concentration, so that the inhaled pollutants can be effectively reduced, when the worker breathes, the pollutants enter the air inlet channel 11 from the air inlet 4, the air inlet channel 11 is longer, the contact path between the pollutants and the filter cotton 10 is increased, the pollutants start to contact with the filter cotton 10 from the position close to the air inlet 4, the pollutants continue to move along the air inlet channel 11, the quantity of the pollutants is gradually less, and the position of the filter cotton 10 far away from the air inlet 4 is difficult to be blocked, the service life of the filter cotton 10 is prolonged, and the left and right 2 pieces of dust filter cotton are used together to equal double air inflow, so that the service time can be effectively prolonged, and the air permeability of the filter cotton 10 can be ensured; the opening size design of air inlet 4, it is basically the same with the air intake efficiency and the resistance of admitting air of current respirator to verify through the experiment, more can highlight the advantage of this product.

Furthermore, the filter cotton 10 has three layers, and is a dust containing layer, a dust containing layer and melt-blown cloth in sequence from outside to inside, compared with a traditional coarse filter layer for filtering large particles, a dust containing layer for filtering medium particles and a melt-blown layer for filtering small particles, the double-layer dust containing layer is adopted, the filtering effect of the filter cotton 10 is effectively improved, and meanwhile, the channel type air inlet path structure of the product is combined, so that the service life of the filter cotton 10 in the product is prolonged by about 10 times compared with that of the common filter cotton 10, the service life of the filter cotton 10 is greatly prolonged, the filter cotton 10 does not need to be frequently replaced, and the use cost is saved.

Furthermore, connect lid 2 and can dismantle through the fixture block 6 that establishes on the inner wall and connect on accepting seat 9, make the fixed lid main part 1 of filter pulp can follow and accept the convenient dismantlement of seat 9 and get off, conveniently change filter pulp 10 through buckle structure.

Further, the inner wall edge of the sealing cover 3 is fixedly connected with the second clamping block 7, the corresponding position of the outer edge of the connecting cover 2 is provided with the mounting hole 8 clamped with the second clamping block 7, the sealing cover 3 can be detached through the second clamping block 7 and the mounting hole 8, and the inside of the device is conveniently cleaned.

Further, the filter cotton fixing cover main body 1 is provided with a long strip-shaped box body structure, the filter cotton fixing cover main body 1 is designed into a rectangular filter poison box cover box shape, the air inlet channel 11 can be prolonged, and the service life of the filter cotton 10 is prolonged.

Furthermore, the symmetrical structure of the filter cotton fixing cover main body 1 is adopted, the filter cotton fixing cover main body 1 is set to be symmetrical along a central line, the filter cotton fixing cover main body 1 is not left or right in installation, no matter how the filter cotton fixing cover main body is installed, the air inlet 4 is always positioned on two sides of an ear, a user does not need to distinguish the left filter cotton fixing cover main body from the right filter cotton fixing cover main body 1, the use is more convenient, only one set of mold is needed during production, and the production cost is reduced.

Furthermore, the air inlet 4 is positioned at the rear inner side of the filter cotton fixing cover main body 1, the air inlet 4 and the air inlet channel 11 are arranged in an L shape, and the air inlet 4 is arranged at the rear inner side of the filter cotton fixing cover 1 main body, so that the pollution concentration at the position of the air inlet 4 in the same environment is lowest, the absorbed pollutants are reduced, and the service life of the filter cotton 10 is prolonged; set 130 degrees through the direction of admitting air with air inlet 4 and inlet channel 11's circulation of air direction, the air admission volume and the air intake rate of air inlet 4 at this moment are in the best, have reduced the inspiratory capacity of pollutant in the very big degree, and more comfortable when the user uses this respirator simultaneously, facilitates the use.

In conclusion, the working process of the utility model is as follows: when in use, the filter cotton 10 is placed in the placing groove of the bearing seat 9, the filter cotton fixing cover main body 1 is installed on the bearing seat 9, the dustproof mask is worn, the air inlets 4 on the inner side of the filter cotton fixing cover main body 1 are positioned on two sides of ears of a person, the direction is opposite to the direction of the ears, when a worker wears the dustproof mask to work, when meeting oncoming pollutants, larger-particle pollutants are blocked by the safety helmet in the falling process and only fall to the side edge of the filter cotton fixing cover main body 1 and cannot directly enter the air inlets 4, meanwhile, the worker sees the intrinsic withdrawal of the pollutants, so that in the same polluted environment, the two sides of the ears are the positions farthest away from the pollutants and are the areas with the relatively lowest pollutant concentration, thereby effectively reducing the sucked pollutants, when the worker breathes, the pollutants enter the air inlet channel 11 from the air inlets 4, intake passage 11 is longer, the contact path of pollutant and filter pulp 10 has been increased, the pollutant begins to contact with filter pulp 10 from the position that is close to air inlet 4, along with the pollutant continues to remove along intake passage 11, the volume of pollutant is less gradually, filter pulp 10 is kept away from the position of air inlet 4 and is hardly blocked like this, filter pulp 10's life has been prolonged, make filter pulp 10 in this product compare life increase about 10 times with ordinary, filter pulp 10's life has been promoted greatly, need not often change filter pulp 10, use cost is saved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Long passageway formula cotton filter lid admits air after, including dismantling the seat (9) of accepting of connection in dust mask both sides, its characterized in that: install filter pulp (10) in the standing groove that accepts seat (9) outside and establish, the outside of accepting seat (9) is equipped with and is used for fixing filter pulp (10) filter pulp fixed cover main part (1) on accepting seat (9), filter pulp fixed cover main part (1) is including connecting lid (2) and closing cap (3), connect lid (2) and install in accepting seat (9) outside, the outside at connecting lid (2) is installed in closing cap (3), induction port (5) that correspond with filter pulp (10) position are seted up to the centre of connecting lid (2), lie in induction port (5) one side position on connecting lid (2) and seted up air inlet (4), be provided with inlet channel (11) between connecting lid (2) and closing cap (3).

2. The rear air intake long channel filter cover of claim 1, wherein: the filter cotton (10) has three layers, namely a dust containing layer, a dust containing layer and melt-blown cloth from outside to inside in sequence.

3. The rear air intake long channel filter cover of claim 1, wherein: the connecting cover (2) is detachably connected to the bearing seat (9) through a first clamping block (6) arranged on the inner wall.

4. The rear air intake long channel filter cover of claim 1, wherein: the inner wall edge of the closed cover (3) is fixedly connected with a second clamping block (7), and a mounting hole (8) clamped with the second clamping block (7) is formed in the corresponding position of the outer edge of the connecting cover (2).

5. The rear air intake long channel filter cover of claim 1, wherein: the filter cotton fixing cover main body (1) is provided with a long strip-shaped box body structure.

6. The rear air intake long channel filter cover of claim 1, wherein: the filter cotton fixing cover main body (1) is of a symmetrical structure.

7. The rear air intake long channel filter cover of claim 1, wherein: the air inlet (4) is positioned at the rear inner side of the filter cotton fixing cover main body (1), and the air inlet (4) and the air inlet channel (11) are arranged in an L shape.