CN211798352U

CN211798352U - Can switching children respirator that 3M crosses filter pulp connects

Info

Publication number: CN211798352U
Application number: CN202020325229.3U
Authority: CN
Inventors: 李智平; 卢金淼; 王广飞
Original assignee: Childrens Hospital of Fudan University
Current assignee: Childrens Hospital of Fudan University
Priority date: 2020-03-16
Filing date: 2020-03-16
Publication date: 2020-10-30
Anticipated expiration: 2030-03-16

Abstract

The utility model belongs to the gas mask field especially relates to a can switching children gas mask that 3M crosses filter pulp connects, which comprises a frame, the inner wall fixedly connected with goggles of frame, and the inner wall fixedly connected with respiratory mask of frame, the lower extreme of goggles and the upper end fixed connection of respiratory mask, the induction port has been seted up to the upper end inner wall of respiratory mask, and the embedded first check valve that is equipped with of induction port, the upper end intercommunication of frame has the Y venturi tube. Through setting up the switching subassembly, can utilize switching subassembly switching 3M to filter the cotton to promote respirator's protection level, make children's respirator's suitability wider, reduce the cost of deposit equipment, through setting up a plurality of gas outlets of Y venturi tube cooperation, can improve the air flow area, reduce air resistance, when effectively filtering the harmful substance in the air, reduce children's the degree of difficulty of breathing, make children's breathing more light comfortable.

Description

Can switching children respirator that 3M crosses filter pulp connects

Technical Field

The utility model belongs to the respirator field especially relates to a children respirator that 3M of can switching crosses filter pulp joint.

Background

The self-priming filtering type breathing protective apparatus is wide in use, has better performance in the conditions of dust prevention, gas defense, epidemic prevention and the like, and becomes the first choice of people on protective articles.

In prior art, the respirator needs better leakproofness as the protective equipment that protection level is higher, and the protection level of different respirators is different on the one hand, and on the other hand children's size difference is great, and the reserve respirator that is applicable to different sizes children's different grades simultaneously can increase the cost of the equipment of protective equipment.

SUMMERY OF THE UTILITY MODEL

The utility model provides a to foretell problem, provide a children respirator that 3M filter pulp that can switch over connects.

In order to achieve the purpose, the utility model discloses a technical scheme do, the utility model provides a can switching children respirator that 3M crosses filter pulp connects, which comprises a frame, the inner wall fixedly connected with goggles of frame, and the inner wall fixedly connected with respiratory mask of frame, the lower extreme of goggles and the upper end fixed connection of respiratory mask, the induction port has been seted up to the upper end inner wall of respiratory mask, and the embedded first check valve that is equipped with of induction port, the upper end intercommunication of frame has the Y venturi tube, and the upper end intercommunication of Y venturi tube has two switching components, a plurality of gas outlets have been seted up to one side lateral wall of respiratory mask, and all inlay in every gas outlet and be equipped with the second check valve, the lateral wall intercommunication that the respiratory mask is close to the gas outlet has two switching components, the bandage that two symmetries of lateral wall fixedly connected with of respiratory mask set up is kept away from.

Preferably, the switching subassembly includes the connecting pipe, and a plurality of fixture blocks of the lateral wall fixedly connected with of connecting pipe, the lateral wall cover of connecting pipe is equipped with the round cover, and the inner wall of round cover has seted up the spacing groove, the filter core has been placed to the spacing inslot, and filters the setting that core and connecting pipe offset.

Preferably, the lower end of the round sleeve is provided with a yielding groove matched with the clamping block, and the inner side wall of the round sleeve is provided with a sliding groove.

Preferably, the upper surface of the clamping block is fixedly connected with a rubber pad, and the surface of the rubber pad is provided with an anti-skid groove.

Preferably, the frame is close to the lateral wall fixedly connected with flexible shirt rim of bandage, and flexible shirt rim is the silica gel material.

Preferably, the lateral wall fixedly connected with silica gel pad that the respiratory mask is close to the bandage, and the lateral wall parcel that the respiratory mask was kept away from to the silica gel pad has the cloth pad.

Compared with the prior art, the utility model has the advantages and positive effects that,

1. the utility model discloses, through setting up the switching subassembly, can utilize switching subassembly switching 3M to cross the filter pulp to promote respirator's protection level, make children respirator's suitability wider, reduce storage equipment's cost, through setting up a plurality of gas outlets of Y venturi tube cooperation, can improve the air flow area, reduce the air resistance, when effectively filtering harmful substance in the air, reduce children's the degree of difficulty of breathing, make children's breathing more light comfortable.

2. The utility model discloses, can improve the frictional force of fixture block through setting up the rubber pad, guarantee that circle cover or 3M filter pulp can not drop, guarantee children's gas mask's validity, can improve children's gas mask's leakproofness through setting up flexible shirt rim, avoid poisonous and harmful other by the gap department entering children's gas mask of frame and children's cheek in, through setting up the first check valve of silica gel pad cooperation, can avoid expired air to upwards spill over, avoid goggles to haze influence children's sight.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic perspective view of a child respirator capable of adapting to a 3M filter cotton joint provided in embodiment 1;

FIG. 2 is a schematic sectional view of a child respirator capable of adapting to a 3M filter cotton joint according to embodiment 1;

FIG. 3 is a schematic structural diagram of the transfer assembly in FIG. 1 according to embodiment 1;

fig. 4 is a schematic cross-sectional view of the round sleeve in fig. 3 provided in example 1.

In the above figures, 1, frame; 2. goggles; 3. a respiratory mask; 4. an air suction port; 5. a first check valve; 6. a Y-shaped tube; 7. a switching component; 8. an air outlet; 9. a second one-way valve; 10. binding bands; 11. a flexible skirt; 12. a silica gel pad; 71. a connecting pipe; 72. a clamping block; 73. a round sleeve; 74. a limiting groove; 75. a filter element; 76. a yielding groove; 77. a chute; 78. and (7) a rubber pad.

Detailed Description

In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the present invention is not limited to the limitations of the specific embodiments of the present disclosure.

Embodiment 1, as shown in fig. 1-4, the utility model provides a children gas mask capable of switching 3M filter cotton joint, which comprises a frame 1, wherein a flexible skirt 11 is fixedly connected to a side wall of the frame 1 near a binding band 10, the flexible skirt 11 is made of silica gel, the frame 1 can be more attached to the skin of a child by arranging the flexible skirt 11, so as to achieve the sealing effect, thereby preventing toxic and harmful substances in the outside air from entering the breathing mask 3 from a gap between the frame 1 and the facial skin of the child, goggles 2 are fixedly connected to an inner wall of the frame 1, the eyes of the child can be protected by arranging the goggles 2, so as to prevent the fragile eyes from being damaged by the toxic and harmful substances in the outside air, a breathing mask 3 is fixedly connected to the inner wall of the frame 1, the breathing mask 3 is shaped like a mask, and the breathing mask 3 is made of plastic, the protective mask has good sealing performance, the lower end of the goggles 2 is fixedly connected with the upper end of the breathing mask 3, the lower end of the goggles 2 is bonded with the breathing mask 3 through sealant, external unfiltered air is prevented from directly entering the frame 1 through a gap between the goggles 2 and the breathing mask 3, the side wall of the breathing mask 3 close to the bandage 10 is fixedly connected with the silica gel pad 12, the side wall of the silica gel pad 12 far away from the breathing mask 3 is wrapped with the cloth pad, the comfort of the silica gel pad 12 can be improved through the arrangement of the cloth pad, the phenomenon that children feel uncomfortable due to the fact that sweat is bonded on the silica gel pad 12 is avoided, the fitting of the breathing mask 3 and the cheeks of the children can be guaranteed through the arrangement of the silica gel pad 12, the inner wall of the upper end of the breathing mask 3 is provided with the air inlet 4, the first one-way valve 5 is embedded in the air inlet 4 and used for limiting the air inlet, and prevent the breathing mask 3 from discharging upwards through the air suction port 4, the upper end of the frame 1 is communicated with a Y-shaped pipe 6, because the lung capacity of the child is small and the air resistance needs to be reduced, the Y-shaped pipe 6 is matched with the air outlet 8 to provide a plurality of air outlet and air suction paths, so the difficulty of breathing is reduced, on the other hand, because the child body size is small, the excessive adapter components 7 are difficult to be additionally arranged on the face, the interference of the sight of the child after the 3M filter cotton joint is switched is avoided, and the discomfort of the child is caused, therefore, the adapter 7 for air suction filtration is arranged above the mask through the Y-shaped pipe 6, the upper end of the Y-shaped pipe 6 is communicated with two adapter components 7, each adapter component 7 comprises a connecting pipe 71, the outer side wall of the connecting pipe 71 is fixedly connected with a plurality of clamping blocks 72, the sizes of the connecting pipe 71 and the clamping blocks 72, and the surface of the rubber pad 78 is provided with an anti-skid groove, the side wall of the connecting pipe 71 is sleeved with a round sleeve 73, and the inner wall of the round sleeve 73 is provided with a limit groove 74, a filter element 75 is arranged in the limit groove 74, the filter element 75 is abutted against the connecting pipe 71, the lower end of the round sleeve 73 is provided with a abdicating groove 76 matched with the fixture block 72, the inner side wall of the round sleeve 73 is provided with a chute 77, the side wall of one side of the respiratory mask 3 is provided with a plurality of air outlets 8, and a second one-way valve 9 is embedded in each air outlet 8, and by arranging the second one-way valve 9, can limit air to be discharged from the air outlet 8, two switching components 7 are communicated with the side wall of the air outlet 8 of the respirator 3 close to the air outlet 8, a moisture absorption pad is arranged in the switching component 7 communicated with the air outlet 8, used for absorbing moisture in the exhaled breath and improving comfort, and two symmetrically arranged binding bands 10 are fixedly connected to the side wall of the frame 1 far away from the breathing mask 3.

The specific arrangement and function of the child respirator capable of being connected with the 3M filter cotton joint will be described in detail below.

When the breathing protective mask is used, the flexible skirt edge 11 is firstly attached to the face of a child, then the binding bands 10 are hung on two ears of the child, so that the breathing protective mask is worn on the face of the child, when the child breathes in, the external air enters the Y-shaped pipe 6 through the switching component 7 and enters the breathing mask 3 along the air suction port 4, the second one-way valve 9 is in a closed state and can be used for limiting the air from entering the breathing mask 3 through the switching component 7 of the air outlet 8, the phenomenon that the air with lower oxygen content exhaled by the child flows back into the breathing mask 3 can be avoided, the breathing quality of the child is improved, the external air enters the breathing mask 3 after being filtered through the switching component 7 communicated with the Y-shaped pipe 6, the influence of toxic and harmful substances in the external air on the child can be effectively avoided, when the child exhales, the first one-way valve 5 can limit the air exhaled by the child, the inner wall of the goggles 2 is prevented from forming fog, meanwhile, children can be prevented from repeatedly inhaling air with low oxygen content exhaled by the children, on the other hand, the air outlet 8 is also communicated with the switching assembly 7 with the filter element 75, the influence of the air exhaled by the children suffering from infectious diseases on nursing personnel can be avoided, and the switching assembly has a good protection effect on the children and the nursing personnel, on the other hand, the round sleeve 73 can be detached, so that the round sleeve 73 on the adapter assembly 7 communicated with the air outlet 8 can be detached when bidirectional filtration is not needed, and the second one-way valve 9 is arranged, so that the children can be ensured to always inhale the filtered air;

when the 3M filter cotton joint needs to be switched to improve the protection grade under special conditions, the round sleeve 73 is firstly rotated to enable the fixture block 72 to slide to the position matched with the abdicating groove 76, then the round sleeve 73 is moved towards the direction far away from the connecting pipe 71, the filter core 75 and the round sleeve 73 can be taken down and taken down together, the problem that the filter core 75 and the 3M filter cotton joint repeatedly filter air to cause difficulty in breathing of children is avoided, then the 3M filter cotton joint is buckled on the connecting pipe 71 and rotated, so that the purpose of switching the 3M filter cotton joint to the connecting pipe 71 to improve the protection grade is achieved, the gas mask can be used for multiple purposes, only one gas mask suitable for the body size of children needs to be accompanied, the purpose of improving the protection grade of the gas mask can be achieved by switching the 3M filter cotton joint when special conditions are met, and the gas masks with different protection grades are not needed, effectively reduce the cost of the equipment of the protective appliance and have larger and wider applicability.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may use the above-mentioned technical contents to change or modify the equivalent embodiments into equivalent variations to apply to other fields, but all those persons do not depart from the technical contents of the present invention, and any simple modification, equivalent variation and modification made to the above embodiments according to the technical matters of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. The child gas mask capable of being switched to a 3M filter cotton joint comprises a frame (1) and is characterized in that goggles (2) are fixedly connected to the inner wall of the frame (1), breathing masks (3) are fixedly connected to the inner wall of the frame (1), the lower ends of the goggles (2) are fixedly connected to the upper ends of the breathing masks (3), air suction ports (4) are formed in the inner walls of the upper ends of the breathing masks (3), first one-way valves (5) are embedded in the air suction ports (4), Y-shaped pipes (6) are communicated with the upper ends of the frame (1), two switching assemblies (7) are communicated with the upper ends of the Y-shaped pipes (6), a plurality of air outlets (8) are formed in the side wall of one side of each breathing mask (3), second one-way valves (9) are embedded in each air outlet (8), and two switching assemblies (7) are communicated with the side wall, close to the air outlets (8), of each breathing mask (, the side wall of the frame (1) far away from the respirator (3) is fixedly connected with two symmetrically arranged binding bands (10).

2. The respirator for children capable of being switched over a 3M filter cotton joint as claimed in claim 1, wherein the switching assembly (7) comprises a connecting pipe (71), a plurality of clamping blocks (72) are fixedly connected to the outer side wall of the connecting pipe (71), a round sleeve (73) is sleeved on the side wall of the connecting pipe (71), a limiting groove (74) is formed in the inner wall of the round sleeve (73), a filter element (75) is placed in the limiting groove (74), and the filter element (75) is abutted to the connecting pipe (71).

3. The respirator for children capable of being connected with a 3M filter cotton joint as claimed in claim 2, wherein the lower end of the round sleeve (73) is provided with an abdicating groove (76) matched with the clamping block (72), and the inner side wall of the round sleeve (73) is provided with a sliding groove (77).

4. The respirator for children capable of adapting to a 3M filter cotton joint as claimed in claim 2, wherein a rubber pad (78) is fixedly connected to the upper surface of the block (72), and an anti-slip groove is formed on the surface of the rubber pad (78).

5. The respirator for children capable of being connected with a 3M filter cotton joint as claimed in claim 1, wherein a flexible skirt (11) is fixedly connected to the side wall of the frame (1) close to the binding band (10), and the flexible skirt (11) is made of silica gel.

6. The respirator for children capable of adapting to the 3M filter cotton joint as claimed in claim 1, wherein a silica gel pad (12) is fixedly connected to the side wall of the respirator (3) close to the binding band (10), and a cloth pad is wrapped on the side wall of the silica gel pad (12) far away from the respirator (3).