CN2475296Y

CN2475296Y - Bidirectional filter tip for cigarette

Info

Publication number: CN2475296Y
Application number: CN 00263495
Authority: CN
Inventors: 苏晓武
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-12-26
Filing date: 2000-12-26
Publication date: 2002-02-06
Anticipated expiration: 2010-12-26

Abstract

The utility model belongs to health care articles. The bidirectional filtering cigarette filter tip comprises a suction mouth, a shell, a cigarette inserting tube three parts. Two filter rods and two valve plates are disposed in the shell. When users smoke with the bidirectional filtering cigarette filter tip, two valve plates simultaneously move to reversely switch the status(open/close), the smoke flow is guided, two filter rods can respectively filter the inhalantion and exhalantion smoke. Then, the smoke formed by the smoked cigarette are discharged into air through secondary filtration of two filter rods, compared with once-filtration smoke, the residual harmful substance is less, from the point of health care, the utility model can reduce the damage-level of passive smokers; can also reduce the damage-level of active smokers, because the active smoker is also a passive smoker at the same time.

Description

Bi-directional filtered cigarette filter is chewed

The utility model belongs to health care product.

The utility model relates to a kind of cigarette filter to be chewed, and it has bi-directional filtered function.

Smoking is public hazards, not only do oneself great harm (active smoker), and victimize (involuntary smoker).Ban on opium-smoking and the opium trade is advocated in the whole world.But for various reasons, it is smokeless fully to ban on opium-smoking and the opium trade from promotion, also has one not short period.In period, be necessary to take the remedial measure of transition nature at this section.In many remedial measures, it is common a kind of that filter is chewed.But present cigarette filter both domestic and external is chewed, and all adopts unidirectional filter type, only the smoke filtration that the smoker is sucked.And filter stick commonly used at present should not improve filter efficiency with the method that increases length (volume), density, because the increase of length (volume), density causes resistance to increase, causes extraction difficult.

The purpose of this utility model provides a kind of bi-directional filtered cigarette filter and chews, it disposes two filter sticks, respectively to the flue gas of smoker's suction and the smoke filtration of smoker's exhalation, reduce the harmful substance in the discharging flue gas as much as possible, thereby reduce involuntary smoker's extent of injury, also can reduce active smoker's extent of injury-because the active smoker also is an involuntary smoker simultaneously.

Structure such as accompanying drawing are looked, the filter of bi-directional filtered cigarette chew by suction chew 1, housing 3, cigarette patch pipe 8 three big parts and form mutual grafting.Plastic products.Configuration valve block 4, filter stick 7, filter stick 11, valve block 13, plug 15 in the housing 3.When the smoker chewed smoking with bi-directional filtered cigarette filter, valve block 13 moved and closed vent hole 12 to passage 12; Valve block 4 deviates from passage 6 and moves and open passage 6; The flue gas that cigarette burning forms is chewed hole 2 and is entered the oral cavity by passage 9, filter stick 7, passage 6, passage 5, suction.When the smoker chewed the exhalation flue gas with bi-directional filtered cigarette filter, valve block 4 moved and closed vent hole 6 to passage 6; Valve block 13 deviates from passage 12 and moves and open passage 12; The flue gas of breathing out in the oral cavity is chewed hole 2, air channel 10, filter stick 11, passage 12, passage 14, passage 16 by suction and is entered in the air.

As above-mentioned, the filter efficiency of supposing a filter stick is ζ, and so, in the flue gas of two filter stick secondary filters, the ratio of residue harmful substance is (1-ζ) 2.Obviously, compare with the flue gas that once filters, the residue harmful substance still less.

Claims

1, a kind of cigarette filter with bi-directional filtered function is chewed, and it is characterized in that: inhale chew, housing, cigarette patch the Guan Sanda parts and peg graft mutually, the valve block of two filter sticks of configuration and two unidirectional unlatchings in the housing.