CN2539543Y

CN2539543Y - Self-breathing helmet filtering dust-proof gas-proof mouthpiece

Info

Publication number: CN2539543Y
Application number: CN 02228839
Authority: CN
Inventors: 张仲祥
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-03-28
Filing date: 2002-03-28
Publication date: 2003-03-12
Anticipated expiration: 2012-03-28

Abstract

The utility model relates to a respirator, which has dustproof, gas defence and a self-absorbing helmet to filter, comprising an oronasal and mouth respirator (1) and a helmet (2). The utility model is characterized in that: an inner cap (3) is positioned in the helmet (2), a cavity is arranged between the inner cap (3) and the helmet (2), a filter layer (5) is positioned inside the cavity and separates the cavity into an inner cavity (6) and an outer cavity (7), the oronasal and mouth respirator (1) is communicated with the inner cavity by a windpipe (13), the outer cavity (7) is communicated with an air inlet hole (14) in the helmet (2), and the filter layer (5) is shaped as a three-dimensional wave. The utility model has the advantages of greatly lowering the absorbing resistance because the area of the three-dimensional wave filter layer is larger than that of the flat paved filter layer, increasing the filter fiber density and improving the dust resistance efficiency of the filter layer due to the absorbing resistance is lowered, particularly improving the dustproof efficiency for the breathing dust which is smaller than 5 micrometer and is highly pathogeneic, and realizing the dustproof and pneumopathy prevention.

Description

A kind of self-priming skullcap filtering type antidusting and anti-poisoning mask

Technical field

The utility model relates in people's dust work, especially the mouth mask that uses in the higher operating environment of dust concentration, particularly self-priming skullcap filtering type antidusting and anti-poisoning mask.

Technical background

In dust work, need to wear antidusting and anti-poisoning mask, to avoid people to suck airborne harmful dust and graininess poisonous substance, using more dustproof or anti-poison respirator at present is that self-absorbing filtering type relatively simple for structure prevents dust, anti-poison respirator, this mouth mask is by oronasal mask, outlet valve, inlet valve, filter cartridge is formed, because outlet valve, inlet valve, filter cartridge all concentrates on the oronasal mask, so the volume of whole mouth mask is big, weight is also heavier, influence work, obstruct the view, and owing to be subjected to the restriction of size, the area of the filter course of this mouth mask is less, and inspiratory resistance is big, and service time is long more, inspiratory resistance is big more, when dust concentration is higher in the environment, can causes filter course to stop up and lose efficacy.

" self-priming skullcap filtering type antidusting and anti-poisoning mask " (Chinese patent 89107447.3) of inventor's invention, it is made up of oronasal mask and skullcap, be provided with interior cap in the skullcap, form cavity between interior cap and the skullcap, filter course is arranged in the cavity, filter course is separated into inner chamber and exocoel with cavity, and oronasal mask is communicated with inner chamber by wireway, and exocoel is communicated with air inlet on the skullcap.This patent of invention will be prevented dust, the filter course of anti-poison respirator is tiled in the skullcap, to increase the area of filter course, reduce inspiratory resistance, receive effect preferably, but the resistance filter effect to the very strong respirable dust below 5 microns of small dust, particularly pathogenicity also needs further to improve.

Summary of the invention

Technical problem to be solved in the utility model is: provide a kind of inspiratory resistance little, and the resistance of respirable dust is filtered the self-priming skullcap filtering type antidusting and anti-poisoning mask of better effects if.

The utility model solves the problems of the technologies described above the technical scheme that is adopted: it is made up of oronasal mask and skullcap, be provided with cap in the skullcap, form cavity between interior cap and the skullcap, be provided with filter course in the cavity, filter course is separated into inner chamber and exocoel with cavity, oronasal mask is communicated with inner chamber by wireway, and exocoel is communicated with air admission hole on the skullcap, and filter course is three-dimensional waveform.

Because the area of three-dimensional corrugated filter course is more much bigger than the area of the filter course of tiling, greatly reduce inspiratory resistance, and because inspiratory resistance reduces, can be under the low prerequisite of inspiratory resistance, strengthen the fibre density of filter course, further improve the dust collection efficiency of filter course, particularly improve dust collection efficiency, reach the purpose of prevention pneumoconiosis the very strong respirable dust below 5 microns of pathogenicity.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment 1

Fig. 2 is the utility model embodiment 1 skullcap phantom

Fig. 3 is the cutaway view at the utility model embodiment 1 mine lamp frame place

Fig. 4 is the structural representation of shunting outlet valve on the utility model embodiment 1 oronasal mask

Fig. 5 is the structural representation of the utility model embodiment 2

1 is oronasal mask among the figure, and 2 is skullcap, and 3 is interior cap, 4 is support, and 5 is filter course, and 6 is inner chamber, 7 is exocoel, and 8 is the mine lamp frame, and 9 is inner core, 10 is urceolus, and 11 is the shunting outlet valve, and 12 is inlet valve, 13 is wireway, and 14 is the skullcap air admission hole, and 15 is passage, 16 is protective face mask, and 17 is steam vent.

Specific embodiments

The utility model embodiment 1 as shown in Figure 1, 2, it is made up of oronasal mask 1 and skullcap 2, be provided with cap 3 in the skullcap 2, form cavity between interior cap 3 and the skullcap 2, be provided with filter course 5 in the cavity, filter course 5 is separated into inner chamber 6 and exocoel 7 with cavity, and oronasal mask 1 is communicated with inner chamber 6 by wireway 13, and exocoel 7 is communicated with air admission hole 14 on the skullcap 2.Be provided with support 4 in the cavity, filter course 5 supports and forms three-dimensional waveform (wrinkle) by support 4.Distance between skullcap 2 and the interior cap 3 is that the skullcap top is big, and shade portion is little, and is corresponding, support 4 in the cavity is at the height at place, skullcap top, and low at the shade place is to strengthen the volume of inner chamber 6 and exocoel 7, inner chamber 6 is deposit gas 500ml approximately, plays buffering and reduces the inspiratory resistance effect.

As shown in Figure 3, skullcap air admission hole 14 is arranged on mine lamp frame 8 places on the skullcap 2, and skullcap air admission hole 14 is downward, reduces big dust particle and enters exocoel 7 and waterproof action in the skullcap 1 to play.

The direction of arrow is air-flow direction among Fig. 1,3.

As shown in Figure 4, oronasal mask 1 is provided with shunting outlet valve 11, one end of shunting outlet valve 11 is connected with oronasal mask 1, shunting outlet valve 11 is made up of two inside and

outside tube

9,10 and steam vents 17 that are nested together, evenly have between 15, two tubes of 4

passages

9,10 and can rotate mutually in the corresponding position respectively on two cylindrical shells.When two

tubes

9,10 rotate to two passage 15 mutual dislocation on the tube mutually, passage 15 is not communicated with, the passage 15 of shunting outlet valve 11 is closed, at this moment, the air of people's inspiration is by the inlet valve 12 inlet port nose cups 1 on the filter course 5 on the skullcap 2, wireway 13, the oronasal mask 1, and the air that the people breathes out is discharged by the steam vent on the shunting outlet valve 11 17.When the passage 15 that rotates to the correspondence on it mutually when two

tubes

9,10 was interconnected, the passage 15 of shunting outlet valve 11 was opened, and at this moment, the people breathes by the passage on the shunting outlet valve 11 15 and speaks.The passage 15 of shunting outlet valve 11 must be closed when entering dust work.

The operation principle of the utility model embodiment 1 is: air enters exocoel 7 between filter course 5 and the skullcap 2 from the skullcap air admission hole 14 of mine lamp frame 8, enter inner chamber 6 through filter course 5, air in the inner chamber 6 enters respiratory tract by the inlet valve 12 on wireway 13 and the oronasal mask 1, is discharged by shunting outlet valve 11 by the air that the people breathes out.

The utility model embodiment 2 as shown in Figure 5 adds protective face mask 16 on the skullcap 2, the direction of arrow is air-flow direction among the figure.

Following table be the utility model skullcap filtering type anti-dust respirator and other three kinds of anti-dust respirators combine at anthracite mine put, the measure of merit result of fully-mechanized mining working:

	Dust collection efficiency (%)
	Dust collection efficiency (%)				＜2	＞2	＞5	＞10
	This anti-dust respirator	89.64	99.23	100	＜2	＞2	＞5	＞10	100
Blast type helmet mouth mask	This anti-dust respirator	89.64	99.23	100	87.43	96.12	95.4	96.48	100
Blast type helmet mouth mask	301 anti-dust respirators	80.56	93.32	96.13	87.43	96.12	95.4	96.48	96.75
Non-woven fabrics gauze mask	301 anti-dust respirators	80.56	93.32	96.13	51.27	89.20	90.81	90.98	96.75

In the table＜2 expressions are less than 2 microns dust, the dust that＞2 expressions are 2 microns to 5 microns, the dust that＞5 expressions are 5 microns to 10 microns, the dust of＞10 expressions more than 10 microns.

Filter course of the present utility model can be made by superfine fibre.

Filter course of the present utility model after the specific aim drug-treated, can utilize the comprehensive function of its physics and chemistry, can eliminate the relevant occupational poisoning that the graininess poisonous substance causes, and cotton grower, the orchard worker pesticide poisoning that pesticide causes of spraying insecticide.

The utility model is applicable to miner, sandhog, drifter, founding founder, Ship Building and Repairing worker, nozzleman etc., is used to prevent diseases such as silicosis, coal-worker's pnuemoconiosis, foundry worker pneumoconiosis; Install protective face mask on skullcap additional, the welder that can power uses, diseases such as prevention electric welder pneumoconiosis.

Claims

1, a kind of self-priming skullcap filtering type antidusting and anti-poisoning mask, it is made up of oronasal mask (1) and skullcap (2), be provided with cap (3) in the skullcap (2), form cavity between interior cap (3) and the skullcap (2), be provided with filter course (5) in the cavity, filter course (5) is separated into inner chamber (6) and exocoel (7) with cavity, and oronasal mask (1) is communicated with inner chamber (6) by wireway (13), exocoel (7) is communicated with air admission hole (14) on the skullcap (2), it is characterized in that: filter course (5) is three-dimensional waveform.

2, mouth mask as claimed in claim 1 is characterized in that: be provided with support (4) in the cavity, filter course (5) is supported by support (4).

3, mouth mask as claimed in claim 1 or 2 is characterized in that: the distance between skullcap (2) and the interior cap (3) is that the skullcap top is big, and shade portion is little.

4, mouth mask as claimed in claim 1 or 2 is characterized in that: air admission hole (14) is arranged on the skullcap (2) behind the mine lamp frame (8), and Open Side Down for air admission hole (14).

5, mouth mask as claimed in claim 1 or 2, it is characterized in that: oronasal mask (1) is provided with shunting outlet valve (11), shunting outlet valve (11) is made up of two inside and outside tube (9,10) and steam vents (17) that are nested together, have passage (15) on two tubes (9,10) respectively in the corresponding position, can rotate mutually between two tubes (9,10).