CN2443741Y

CN2443741Y - Improved gas mask

Info

Publication number: CN2443741Y
Application number: CN 00250969
Authority: CN
Inventors: 何天禄
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-08-28
Filing date: 2000-08-28
Publication date: 2001-08-22
Anticipated expiration: 2010-08-28

Abstract

The utility model relates to an improved gas mask which comprises a front and a rear cover bodies, and two battery holders, wherein an opening of the rear cover body is backward, and the apical margin of the front side of the rear cover body is provided with an air intake which downward extends a guide passage. The bottom edge of the front side of the rear cover body is provided with an air outlet with a non-return membrane, and both sides of the bottom of the rear cover body are respectively provided with battery holders which are provided with batteries to provide power supply to a motor for driving a fan. The lower part of the front end of the rear cover body is provided with a front cover body, and a filtering body is arranged in a fixing seat of the front cover body. A second filtering body is screwed by a cover body in front of the filtering body, and the inner surface of the fixing seat is provided with a through hole for arranging the motor fan. The airflow adsorbed by the fan enters the guide passage through the filtering body and the second filtering body.

Description

Improved breathing mask

The utility model is relevant a kind of breathing mask, refers to a kind of second filtering bodies that is provided with before filtering bodies especially, with larger particles materials such as obstruct dust, and the littler breathing mask of structure length.

As shown in Figure 5, it is the breathing mask that is applied to spray medicine on the existing agricultural, it has a helmet (not shown) and and wears respirator 81 on nose, face for the user, this respirator 81 links an end of an air hose 82, the other end of this air hose 82 then is connected to a filter 8, have filtering bodies and pressure fan (all not showing among the figure) in this filter 8, pressure fan by filter 8 sucks air, and sucks clean and refrigerant air to respirator 81 for the user through filtering bodies, air hose 82.But still there is following shortcoming in this kind breathing mask on reality is used:

One, use inconvenience:

The filter 8 of this kind breathing mask is to wear in waist, so must by air hose 82 can direct air to respirator 81, but waist is longer to the distance of nose, face, and the activity of head for the convenience of the users and health, air hose 82 again must be more longer, can hinder user's activity when narrow space is worked again, particularly when spraying insecticide, the user must carry sprayer, therefore, extremely inconvenient in the use.

Two, the pressure loss of air hose is big:

Because this air hose 82 is sinuate state, the mobile build-up of pressure loss for air makes that also the efficient of pressure fan is not high, and not only its air-supply effect is had a greatly reduced quality, and also causes the waste of the energy.

Three, equipment is heavy:

It is various to commonly use assembly, as previously mentioned, comprise assemblies such as the helmet, respirator 81, air hose 82 and filter 8, very heavy, and the known air hose 82 of this kind is very long, and the bigger pressure fan of a power of therefore must arranging in pairs or groups just can be sent the air of enough pressure, so, the battery (not shown) that normally cooperates a rechargeable type, but this kind battery is very heavy, more increases the inconvenience of using.

Commonly use shortcomings such as the breathing mask equipment pressure loss heavy, that use inconvenience, air hose is big in order to improve, the dealer produces the another kind of breathing mask shown in Fig. 6 and 7 figure, it is to be provided with motor 91 and fan 92 in preceding cover body 9, with direct attraction air, and the harmful substance in body 93 filtered airs after filtration, directly delivering to rear cover body 94 again breathes for the user, can not cause motor 91 power losses, to increase the utilization benefit of motor 91, fan 92, and can directly wear in face, can not hinder other position activity of health.But this kind breathing mask is when reality is used; owing to use field boundary institute different, be example with the carpenter master worker, regular meeting produces wood chip and wooden dust in its workplace; these materials produce the filtering bodies made from activated carbon 93 easily and block; and lost its due function, so the consumer often considers for health, and must change filtering bodies 93 often; but; filtering bodies 93 is to make with the higher activated carbon of cost, thus the cost height, so plant necessity that breathing mask still has improvement.

In addition, the non-return film 95 that this kind is located at rear cover body 94 bottoms is in order to exhale conveniently, be horizontally disposed with and be, because its periphery has suitable width, so, can make the length lengthening of rear cover body 94, and therefore the battery 97 in this battery tray 96 also can make whole breathing mask length increase, when wearing use also for being horizontally disposed with, filtering bodies 93 is increased apart from the moment of user face, and more feel heavy; Must not reduce battery 97 numbers if it is increased then, but this electric weight deficiency can be made again, and battery 97 must be changed often, pretty troublesome in the use.

Main purpose of the present utility model is, provide a kind of improved breathing mask for solving the above problems, lid on the preceding cover body can screw the flange of second filtering bodies before filtering bodies, and intercept the material of larger particles such as dust by second filtering bodies, so that filtering bodies is difficult for getting clogged, to increase service life, reach the minimizing expense.

Of the present utility model time a purpose is that providing a kind of can take off second filtering bodies or combination, to be suitable for the improved breathing mask of different fields of employment.

A purpose more of the present utility model is, a kind of variation by structure is provided, and can reduce the moment of front end, the improved breathing mask of the comfort of wearing with increase.

The purpose of this utility model is realized by following technical scheme.

A kind of improved breathing mask, include cover body, it is characterized in that, described cover body comprises forward and backward cover body again, this rear cover body has backward an opening, the outside of this opening is arranged with the sealing gasket of a ring-type, and the sealing pad is to form with the soft rubber manufacturing, and the front side apical margin of this rear cover body has an air inlet, this air inlet also extends one downwards and leads the way, in addition, the front side root edge of this rear cover body has the air outlet of an oblique setting, and the front side portion of this air outlet is provided with a non-return film; Should preceding cover body be the place, front end below that is fixedly arranged on rear cover body, its front end has the holder of a circle, be provided with the filtering bodies that the activated carbon of a circle is made in this holder, this filtering bodies is that the lid with an annular is fixed at holder, this lid front end has a kink, in addition, the front side of this filtering bodies is provided with one second filtering bodies in addition, this second filtering bodies is to have one with not fine cloth or the folding filter course that forms of fiber-like filter paper, the front end of this filter course has a protecting cover, the rear end of this filter course then has the flange of an annular, and this flange just can be sticked in the flange inner of this lid; In addition, this holder inner face has a through hole, is provided with a fan in this through hole, and this fan is the motor that is incorporated in the bearing, and the air-flow that this fan produced then is conducting in the leading the way of this rear cover body; Be provided with two battery trays, it is bottom two sides of being located at rear cover body respectively, have one between this two battery tray for the exhaust outlet of discharging smoothly by rear cover body air outlet air, this two battery tray has an accommodation space that caves in relatively respectively, can place at least one battery in this accommodation space, the opening part of this accommodation space is provided with an enclosing cover; Be provided with a bearing between this two battery trays root edge, be provided with a main shaft in this bearing and extend forward, and link to each other with motor by battery, and this bearing bottom and be provided with a cradle and for the power turn-on of battery or the switch of closing.

The purpose of this utility model can also further realize by following technical measures.

Aforesaid improved breathing mask, wherein left and right two sides of this rear cover body have an ear respectively, and this two ear links a belt.

Aforesaid improved breathing mask, wherein the air outlet inclined plane direction of this rear cover body is towards the back upper place.

Aforesaid improved breathing mask, wherein this battery is the battery of available charger recharge; And can insert a plug in this cradle, this plug is to be connected to a charger.

The utility model can make filtering bodies be difficult for getting clogged, and to increase service life, reaches the minimizing expense, and increases user's comfort.

For further understanding technology contents of the present utility model, characteristics and effect, exemplify following preferred embodiment now, and conjunction with figs. is described in detail as follows:

Fig. 1 is a combination schematic perspective view of the present utility model.

Fig. 2 is an exploded perspective schematic diagram of the present utility model.

Fig. 3 is the cutaway view of III-III shown in Figure 1.

Fig. 4 is the user mode schematic diagram of the utility model when the user is air-breathing.

Fig. 5 is a user mode schematic diagram of commonly using breathing mask.

Fig. 6 is the user mode schematic diagram of another kind of breathing mask.

Fig. 7 is the user mode cutaway view of breathing mask shown in Figure 6.

See also Fig. 1 to Fig. 4, the utility model includes: a rear cover body 1, this rear cover body 1 has backward an opening 11, the outside of this opening 11 is arranged with the sealing gasket 12 of a ring-type, and sealing pad 1 is to form with the soft rubber manufacturing, and the front side apical margin of this rear cover body 1 has an air inlet 13, this air inlet 13 extends one downwards and leads the way 131, in addition, the front side root edge of this rear cover body 1 has the air outlet 14 that an oblique and inclined plane is provided with towards the back upper place, and the front side portion of this air outlet 14 is provided with a non-return film 15; Moreover left and right two sides of this rear cover body 1 have an ear 16 respectively, and this two ear 16 is in order to link a belt 17.Two battery trays 2, it is bottom two sides of being located at rear cover body 1 respectively, has one between this two battery tray 2 for the exhaust outlet 22 of being discharged smoothly by rear cover body 1 air outlet 14 air.In addition, this two battery tray 2 has an accommodation space 23 that caves in relatively respectively, can place two general batteries 24 commonly used in this accommodation space 23, and the opening part of this accommodation space 23 is provided with an enclosing cover 25; Moreover, be provided with a bearing 26 between these two battery trays, 2 root edges, be provided with a main shaft extends is forward provided power supply by battery 24 motor 27 in this bearing 26, and these bearing 26 bottoms are provided with a cradle 28 and for the power turn-on of battery 24 or the switch 29 of closing, and this cradle 28 inserts charging for the plug 71 of a charger 7.

Cover body 3 before one, it is the place, front end below that is fixedly arranged on rear cover body 1, the holder 31 that the front end of cover body 3 has a circle before being somebody's turn to do, be provided with the filtering bodies 4 of a circle in this holder 31, this filtering bodies 4 is normally made with activated carbon, this filtering bodies 4 is that the lid 32 with an annular is fixed at holder 31, and this lid front end has a kink 321.In addition, the front side of this filtering bodies 4 is provided with one second filtering bodies 5 in addition, this second filtering bodies 5 is to have one with not fine cloth or the folding filter course 51 that forms of fiber-like filter paper, the front end of this filter course 51 has a protecting cover 52, the rear end of this filter course 51 then has the flange 53 of an annular, and this flange 53 just can be sticked in kink 321 inboards of this lid 32; Aforementioned in addition these holder 31 inner faces have a through hole 33, are provided with a fan 34 in this through hole 33, and this fan 34 is the motors 27 that are incorporated in the bearing 26, and the air-flow that produced of this fan 34 then is conducting to leading the way in 131 of this rear cover body 1.

See also Fig. 3, Fig. 4, during use, in the accommodation space 23 of this two battery tray 2, insert two upright batteries 24 respectively, and in holder 31 and lid 32, insert new filtering bodies 4, if in user 6 the working environment such as woodenware factory or flour factory, because these workplaces often have more dust, and dust is to block to live filtering bodies 4 easily, before so 6 of users can place filtering bodies 4 with second filtering bodies 5, and screw lid 32, make this kink 321 clamp the flange 53 of this second filtering bodies 5, again the utility model is worn nose and face place, make sealing gasket 12 be close to face 63 in user 6, it is produced reveals, and belt 17 is walked around head 64 fasten, open switch 29 power supplys again, this motor 27 gets final product entry into service, and drive fan 35 attracts air, air is through the filtration of second filtering bodies 5 and filtering bodies 4, and forming does not have impurity, the fresh air of poisonous substance, these fresh airs flow in the rear cover body 1 and breathe for user 6.

From the above, volume of the present utility model is very little, can directly wear in face 63, does not have the unnecessary some effects health or the activity at other position, and light many, to reach the existing original function of breathing mask.In addition, it should be noted that: the filter course 51 of this second filtering bodies 5 is to make with more cheap not fine cloth or fiber-like filter paper, it has and has air permeability and good and good dust barrier simultaneously concurrently, therefore dust can be intercepted in use in outside, the situation that this filtering bodies 4 can not be got clogged, increasing this filtering bodies 4 than the service life in the workplace of tool dust, and can reduce expense.

In addition, in the workplace that does not have dust, this second filtering bodies 5 can be taken off, to reach all spendable demand of different users.

In addition, the air outlet 14 and the non-return film 15 of this rear cover body 1 are an oblique setting, so can reduce the front and back length of this rear cover body 1; And the battery tray 2 of this two side also is one vertically to be provided with, and therefore also can reduce the length of the utility model integral body, and by the dwindling of length, and reduces the moment length of front end filtering bodies 4, makes the user not heavier when wearing, and comforts.

Claims

1. an improved breathing mask includes cover body, it is characterized in that, described cover body comprises forward and backward cover body again,

This rear cover body has backward an opening, the outside of this opening is arranged with the sealing gasket of a ring-type, the sealing pad is to form with the soft rubber manufacturing, the front side apical margin of this rear cover body has an air inlet, this air inlet also extends one downwards and leads the way, in addition, the front side root edge of this rear cover body has the air outlet of an oblique setting, and the front side portion of this air outlet is provided with a non-return film;

Should preceding cover body be the place, front end below that is fixedly arranged on rear cover body, its front end has the holder of a circle, be provided with the filtering bodies that the activated carbon of a circle is made in this holder, this filtering bodies is that the lid with an annular is fixed at holder, this lid front end has a kink, in addition, the front side of this filtering bodies is provided with one second filtering bodies in addition, this second filtering bodies is to have one with not fine cloth or the folding filter course that forms of fiber-like filter paper, the front end of this filter course has a protecting cover, the rear end of this filter course then has the flange of an annular, and this flange just can be sticked in the flange inner of this lid; In addition, this holder inner face has a through hole, is provided with a fan in this through hole, and this fan is the motor that is incorporated in the bearing, and the air-flow that this fan produced then is conducting in the leading the way of this rear cover body;

Be provided with two battery trays, it is bottom two sides of being located at rear cover body respectively, have one between this two battery tray for the exhaust outlet of discharging smoothly by rear cover body air outlet air, this two battery tray has an accommodation space that caves in relatively respectively, can place at least one battery in this accommodation space, the opening part of this accommodation space is provided with an enclosing cover; Be provided with a bearing between this two battery trays root edge, be provided with a main shaft in this bearing and extend forward, and link to each other with motor by battery, and this bearing bottom and be provided with a cradle and for the power turn-on of battery or the switch of closing.

2. improved breathing mask according to claim 1 is characterized in that, left and right two sides of described rear cover body have an ear respectively, and this two ear links a belt.

3. improved breathing mask according to claim 1 is characterized in that, the air outlet inclined plane direction of described rear cover body is towards the back upper place.

4. improved breathing mask according to claim 1 is characterized in that, described battery is the battery of available charger recharge; And can insert a plug in this cradle, this plug is to be connected to a charger.