CN201869814U - Mask - Google Patents

Abstract

The utility model belongs to the field of respiratory protection devices. Its structure includes: a mask body (1), a non-woven fabric cover body (2) and an exhalation valve (3) and other components. The characteristic is that the mask body (1), the non-woven fabric cover body (2) and the exhalation valve (3) and other components are designed to have structural characteristics that can be assembled and disassembled. After the use of the filter mask, only the non-woven fabric cover body (2) needs to be replaced, and the mask body (1) and the exhalation valve (3) and other components can be retained and reused, which is more in line with the environmental protection and economic benefit requirements of consumers.

Description

a mask

technical field

The utility model belongs to the field of respiratory protection devices, in particular to a mask that can be disassembled and assembled at any time.

Background technique

People who work in a highly polluted environment, in order to prevent themselves from inhaling pollutants in the air, most of them need to use a mask with a filter structure. Although there are many types of masks with a filter structure that are generally used today, the following are The structure of the exhalation valve and the main body of the mask can be roughly divided into the following two types:

The first type, the exhalation valve and the main body of the mask are designed as an integral structure, such as the US invention patent US5325892, the main disadvantage of the mask formed by this structure is that the exhalation valve and the main body of the mask are integrally formed, which cannot be repeated Use, in other words, after use, the exhalation valve and the main body of the mask must be discarded, which not only does not meet the environmental performance, but also fails to meet the economic interests of consumers.

The second type, the mask is designed to include components such as an exhalation valve, a filter layer and a mask body, such as the U.S. invention patent US4630604, although in use, the filter layer in the mask formed by this structure is The replaceable filter material, the exhalation valve and the main body of the mask can be retained and reused after use, but its main disadvantage is that the material of the main body of the mask is not non-woven, but made of a material with poor airtightness and softness , such as rubber materials, which have poor adhesion and no sweat-absorbing performance, so they are not comfortable to wear, and the components of the mask are also relatively complicated, resulting in relatively high production costs.

Contents of the invention

The main purpose of the utility model is to provide a mask that is soft and comfortable, has good adhesion, and can be combined with a mask body, a non-woven fabric cover body and an exhalation valve, and can be disassembled and assembled at any time.

A mask, characterized in that:

The masks include:

The mask main body 1 has a through-hole grid 11 that protrudes outward, and has a section of outer-folded main body cover edge 12 on the periphery of the through-hole grid 11. The two ends of the main body cover edge 12 are provided with symmetrical main body through holes. Holes 13, 14, two elastic straps 15, 16 are respectively inserted into the two pairs of main body through holes 13, 14, and there is a main body opening 17 at the central part of the front end of the through hole grid 11;

The non-woven fabric cover body 2 is a non-woven fabric cover surface 21 with the same shape as the mask main body 1 made of non-woven fabric material and has an outwardly protruding space. On the periphery of the non-woven fabric cover surface 21, there is an outer folded cover body cover edge 22. In the non-woven fabric cover There is a cover opening 23 at the central part of the front end of the surface 21;

The exhalation valve 3 includes an exhalation valve front seat 31 , an exhalation valve diaphragm 32 , an exhalation valve middle seat 33 and an exhalation valve rear seat 34 .

The beneficial effects of the utility model are: the mask main body, the non-woven fabric cover body and the exhalation valve and other components are designed with structural characteristics that can be combined and disassembled, so that after the utility model is used, only the non-woven fabric cover body needs to be replaced, and the mask main body and the exhalation valve component can be retained and reused, which meets the needs of environmental protection and the economic interests of consumers. The material of the main body of the mask is designed to be made of breathable and sweat-absorbing non-woven fabric, making it soft and comfortable to wear, and tight Fit is also good.

Description of drawings

Fig. 1 is the three-dimensional exploded view of the utility model;

Fig. 2, 3 are the three-dimensional combination diagrams of the present utility model;

Figures 4 and 5 are enlarged illustrations of the structure of the exhalation valve of the present utility model;

Fig. 6 is the plane sectional view of the utility model;

Figure 7 is an example of implementation when the diaphragm of the exhalation valve of the present invention is opened;

Fig. 8 is an example of implementation when the exhalation valve diaphragm of the present invention is closed.

reference sign

1 mask body

11 Through-hole grid 12 Main cover edge

13, 14 main body through hole

15, 16 Lace 17 Main body opening

2 non-woven fabric covers

21 Cover 22 Cover edge

23 Cover opening

3 exhalation valve

31 exhalation valve front seat

311 protruding seat surface 312 protruding hole seat

313 Front seat through hole 314 Folded flange

315 front inclined wall

32 exhalation valve diaphragm

321 diaphragm through hole

33 middle seat of exhalation valve

330 outer diameter thread 331 front protruding seat surface

332 protruding seat surface 333 protruding seat edge

334 rubber sleeve 335 rear inclined wall

336 pin seat 337 pin

338 Rib 339 Inner Diameter Flange

34 exhalation valve rear seat

341 inner diameter screw hole 342 outer folded seat edge

Detailed ways

In order to further understand the compositional features of the components of the present utility model and the relationship between the various components, with the help of the following drawings, the details are as follows:

Please refer to Figures 1-6, the structure of the present utility model includes: a mask main body 1, a non-woven fabric cover body 2, an exhalation valve 3 and other components.

The mask main body 1 is made into a through-hole grid 11 with an outwardly protruding space, and the outer periphery of the through-hole grid 11 is designed and formed with an outwardly folded main body cover edge 12 of a suitable length, and the left and right end surfaces of the main body cover edge 12 On the top, there are symmetrical main body through-holes 13, 14, which can be used for two elastic laces 15, 16 to be inserted into the two pairs of main body through-holes 13, 14, respectively. In addition, a main body opening 17 is formed in the central part of the front end of the through-hole grid 11 protruding outward.

The non-woven fabric cover body 2, it is made with non-woven fabric material and has suitable thickness, and its appearance shape is then made into the cover surface 21 that has the same shape as the mask main body 1 to protrude outwardly. At the periphery of the cover surface 21, the design molding has A section of the outer folded cover body cover edge 22 of a suitable length, and at the center of the front end of the cover surface 21 protruding from the space outwards, a cover with the same size as the main body opening 17 at the front center of the front end of the mask main body 1 through hole grid 11 is formed. Body opening 23, when this non-woven fabric cover body 2 is assembled, its cover surface 21 can be stacked in the through-hole grid 11 of mask main body 1, and the cover body opening 23 of non-woven fabric cover body 2 front-end central parts corresponds to the mask main body 1. The main body opening 17 at the central part of the front end and the cover edge 22 on the non-woven fabric cover body 2 correspond to the main body cover edge 12 on the mask main body 1.

The exhalation valve 3 is composed of an exhalation valve front seat 31, an exhalation valve diaphragm 32, an exhalation valve middle seat 33 and an exhalation valve rear seat 34.

Wherein, the exhalation valve front seat 31 has a protruding seat surface 311 at its front end, a protruding hole seat 312 is formed in the central part of the protruding seat surface 311, and several The front seat through hole 313, and the periphery of the front opening of the protruding seat surface 311, has an outwardly folded flange 314 of appropriate thickness, and there is a front slope with a low front and a high rear between the external folded flange 314 and the protruding seat surface 311. Wall 315 .

The exhalation valve diaphragm 32 is a thin sheet made of rubber material, and a diaphragm through hole 321 is opened in its central part.

The middle seat 33 of the exhalation valve has a front protruding seat surface 331 at its front end and a rear protruding seat surface 332 at its rear end, and these two protruding seat surfaces have the same inner diameter, and have an appropriate thickness between the two. The protruding seat edge 333 is set, and a rubber sleeve 334 is additionally formed on the protruding seat edge 333. Between the protruding seat edge 333 and the front protruding seat surface 331, there is a front high and rear low A rear inclined wall surface 335 is provided. Also, at the central portion of the front protruding seat surface 331, a bolt seat 336 is formed, and the central portion of the bolt seat 336 protrudes with a latch 337, and on the seat side surface of the bolt seat 336, several ribs 338 are distributed. It is connected to the inner diameter edge surface 339 of the front protruding seat surface 33 , and the outer diameter thread 330 is formed on the outer diameter surface of the rear protruding seat surface 332 .

Exhalation valve rear seat 34, which is made to have an inner diameter screw hole 341 that can be screwed with the outer diameter thread 330 of the outer diameter thread 330 of the exhalation valve middle seat 33 thereafter, and the seat surface at the front end of the inner diameter screw hole 341 The outer flap 342 is formed to have an appropriate thickness.

About the situation of the utility model in implementing, then please refer to shown in Fig. 1-6, as long as the cover face 21 of the non-woven fabric cover body 2 is inserted into the through-hole grid 11 of the mask main body 1 to be stacked earlier when assembling, and Make the cover body opening 23 correspond to the main body opening 17, and the cover body cover edge 22 correspond to the main body cover edge 12, and then place the exhalation valve front seat 31 on the outer end of the main body opening 17 and the cover body opening 23, so that the exhalation valve front seat 31. The inner diameter of the outer folded flange 314 corresponds to the body opening 17 and the cover body opening 23, and then the exhalation valve diaphragm 32, the exhalation valve middle seat 33 and the exhalation valve rear seat 34 are placed on the main body opening 17 and the cover body. The inner edge surface end of the body opening 23, the diaphragm through hole 321 on the central part of the exhalation valve diaphragm 32 can be caught on the pin seat 336 of the exhalation valve middle seat 33, and then the front end of the exhalation valve middle seat 33 is moved forward. The rear inclined wall surface 335 on the front seat 31 of the exhalation valve is inserted into the front end of the exhalation valve front seat 31 and the front inclined wall surface 315 is engaged with the front inclined wall surface 315 between the protruding seat surface 311, and finally the inner diameter screw of the exhalation valve rear seat 34 is used The hole 341 is screwed on the exhalation valve middle seat 33 rear end protruding seat surface 332 outer diameter thread 330, and screwed forward, the exhalation valve 3 can be connected with the mask main body 1 and the non-woven cloth cover body 2 three Those are combined into one, and at any time as long as the exhalation valve rear seat 34 is unscrewed and disassembled, and the embedding surface between the exhalation valve middle seat 33 and the exhalation valve front seat 31 (that is, the rear inclined wall surface 335 is embedded into the front inclined wall surface 315 ), the exhalation valve 3, the mask main body 1 and the non-woven fabric cover body 2 can be quickly disassembled for replacement with a new non-woven fabric cover body 2, and then reassembled and reused. In addition, regarding the use of the exhalation valve 3 of the present invention after it is assembled on the mask main body 1 and the non-woven fabric cover body 2, as shown in Figures 7 and 8, when the user wears it, the exhalation can be exhaled. The valve diaphragm 32 is pushed forward so that air can circulate through the front seat through hole 313 on the exhalation valve front seat 31, and the exhalation valve diaphragm 32 can be sucked back to close when inhaling.

To sum up, the utility model has the above-mentioned excellent characteristics, so that in practical application, it improves the performance that the prior art does not have, and endows it with practicability, which is of great practical value.

Claims (13)

1. A mask, characterized in that: The masks include: The mouth mask main body (1) has a through-hole grid (11) protruding space outwards, and has a section of outer folding main body cover edge (12) on the periphery of the through-hole grid (11), and the main body cover edge (12) Both ends are provided with symmetrical main body through-holes (13), (14), and two elastic straps (15), (16) are inserted into the two pairs of main body through-holes (13), (14) respectively. ), there is a main body opening (17) at the central part of the front end of the through-hole grid (11); The non-woven cover (2) is a non-woven cover (21) made of non-woven material with the same shape as the mask main body (1) protruding outward, and has an outer folded cover on the periphery of the non-woven cover (21). The body cover edge (22) has a cover body opening (23) at the central part of the front end of the non-woven fabric cover (21); The exhalation valve (3) comprises an exhalation valve front seat (31), an exhalation valve diaphragm (32), an exhalation valve middle seat (33) and an exhalation valve rear seat (34). 2. The mask according to claim 1, characterized in that: the front end of the exhalation valve front seat (31) has a protruding seat surface (311), and there is a protruding seat surface (311) in the central part of the protruding seat surface (311). The hole seat (312) is divided with several front seat through holes (313) on the edge end of the protruding seat surface (311). 3. The mouth mask according to claim 1, characterized in that: the front seat (31) of the exhalation valve protrudes from the periphery of the front end opening of the seat surface (311) and has an outwardly folded flange (314). 4. The mouth mask according to claim 1, characterized in that: the front seat (31) of the exhalation valve, the outwardly folded flange (314) on the front end opening position of the protruding seat surface (311) and the protruding seat surface Between (311) there is a front inclined wall surface (315) with a low front and a high rear. 5. The mask according to claim 1, characterized in that: the exhalation valve diaphragm (32) is a thin sheet made of rubber material, and a diaphragm through hole (321) is provided in its central part. 6. mouth mask as claimed in claim 1 is characterized in that: described exhalation valve middle seat (33), its front end has a front protruding seat surface (331), and the rear end has a rear protruding seat surface (331) of the same internal diameter ( 332), with a raised seat edge (333) between the two. 7. The mouth mask according to claim 6, characterized in that: between said protruding seat edge (333) and the front protruding seat surface (331), there is a rear inclined wall surface (335) with a high front and a low rear . 8. The mask according to claim 6, characterized in that: the protruding seat edge (333) is additionally formed with a rubber sleeve (334). 9. The mask according to claim 6, characterized in that: the central portion of the front protruding seat surface (331) has a latch seat (336), and the central portion of the latch seat (336) protrudes with a latch (337). 10. The mouth mask according to claim 9, characterized in that: several ribs (338) are distributed on the seat edge surface of the latch seat (336), connected to the inner diameter edge surface of the front protruding seat surface (331) . 11. The mask according to claim 6, characterized in that: the outer diameter surface of the rear protruding seat surface (332) has an outer diameter thread (330). 12. mouth mask as claimed in claim 1, is characterized in that: described exhalation valve rear seat (34), it is made to have one and can protrude seat surface (332) external diameter thread (332) in exhalation valve middle seat 330) threaded inner diameter tapped hole (341). 13. The mask according to claim 12, characterized in that: an outer folded seat edge (342) is formed on the front seat surface of the inner diameter screw hole (341).

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