CN207978943U - multi-stage filter cigarette holder - Google Patents

Abstract

The utility model discloses a multistage filter cigarette holder, include: a sleeve pipe, wherein a cigarette inserting hole for inserting a cigarette is arranged on the sleeve pipe; the head end of the multi-stage filtering component is connected with the sleeve, and the mouthpiece is connected with the tail end of the filtering component; multistage filtering component includes first filtering component, and this first filtering component includes chimney filter and at least one first filter core, this first filter core set up in the chimney filter, form inclosed smoke chamber between the outer peripheral face of this first filter core and the inner wall of chimney filter, be provided with on this first filter core with the flue of advancing and the play flue of smoke chamber intercommunication, just advance the flue and include at least one orifice. The multi-stage filter cigarette holder provided by the utility model has stable and reliable filtering effect; moreover, the cleaning is very convenient; in addition, this first filtering component adopts the throttle mode to realize tar and flue gas separation, compares in adopting filtration modes such as sponge to have simple structure, beneficial effect with low costs.

Description

multi-stage filter cigarette holder

technical field

The utility model relates to the technical field of cigarette holders, in particular to a multi-stage filter cigarette holder.

Background technique

Contain a large amount of toxic substances such as tar, nicotine in the cigarette, and the effect of the sponge filter tip filter toxic substance that cigarette self has is very limited, therefore, long-term smoking will seriously damage the health of the smoker. However, for smokers who have long-term smoking habits, it is difficult to quit smoking completely. Therefore, some smoking mouthpieces that can filter tobacco drugs have emerged as the times require.

At present, the common cigarette holders on the market are generally divided into two types: single-stage filter and disposable. The specific contents are as follows:

1. Single-stage filter cigarette holder. Single-stage filtration is to filter cigarette smoke once. The existing problems are as follows: single-stage filtration of tar, nicotine and other harmful substances in filter cigarettes is insufficient. Affect the quality of life of smokers, such as yellow teeth, heavy body "smoke" and other hidden dangers; if tar, nicotine and other harmful substances directly enter the human body, it will increase the health risks of smokers, such as causing respiratory diseases, lung cancer, etc.

2. Disposable cigarette holder. That is, disposable products, usually used as gifts, take up space and are inconvenient to store and carry; the flue gas filtration is not sufficient, the filtering effect is not as good as that of single-stage filtration, and wastes resources at the same time. Not very practical.

Practice has proved that the above two methods are feasible, but they are not perfect, and there are problems such as poor filtering effect in actual use, and there is no good solution so far.

Contents of the invention

Aiming at the current state of the art above, the technical problem to be solved by this utility model is to provide a multi-stage filter cigarette holder with stable and reliable filtering effect, reduce the content of tar and nicotine in filter cigarettes, and purify the harmful substances in filter cigarette smoke. Impurities, reduce the irritation of smoke to the smoker's respiratory tract.

In order to solve the above-mentioned technical problems, a multi-stage filter cigarette holder provided by the utility model includes: a sleeve, on which a cigarette hole for inserting a cigarette is arranged; a multi-stage filter assembly, the multi-stage filter assembly The head end is connected with the sleeve pipe, and the mouthpiece is connected with the tail end of the filter assembly; the multi-stage filter assembly includes a first filter assembly, which includes a filter tube and at least one first filter assembly A filter element, the first filter element is arranged in the filter tube, an airtight smoke chamber is formed between the outer peripheral surface of the first filter element and the inner wall of the filter tube, and an inlet communicating with the smoke chamber is arranged on the first filter element A flue and a flue outlet, and the inlet flue includes at least one throttling hole.

In one of the embodiments, the flue inlet further includes a first blind hole extending axially along the first filter element, the orifice extends radially along the first filter element, and the orifice One end communicates with the first blind hole, and the other end communicates with the smoke chamber.

In one embodiment, there are multiple throttle holes, and the multiple throttle holes are evenly distributed along the circumferential direction of the first filter element.

In one of the embodiments, the outer peripheral surface of the first filter element corresponding to the smoke chamber is a stepped surface.

In one of the embodiments, the outer peripheral surface of the first filter element corresponding to the smoke chamber includes a first step surface, a second step surface and a third step sequentially connected from the head end to the tail end of the multi-stage filter assembly surface, the outer diameter of the first stepped surface is greater than the outer diameter of the third stepped surface, and the second stepped surface is a slope.

In one of the embodiments, the flue outlet includes a second blind hole extending axially along the first filter element and a through hole arranged radially along the first filter element, one end of the through hole is connected to the second blind hole The two blind holes communicate with each other, and the other end communicates with the smoke chamber.

In one of the embodiments, the filter tube is made of transparent material.

In one of the embodiments, the multi-stage filter cigarette holder includes more than two first filter elements, two adjacent first filter elements are connected by threads, and an annular ring is provided on the outer peripheral surface of the first filter element The installation groove of the installation groove is equipped with a sealing ring.

In one of the embodiments, the filter assembly further includes a second filter assembly, and the second filter assembly is disposed between the sleeve and the first filter assembly.

In one embodiment, the second filter assembly includes a second filter element made of microporous and breathable ceramics, activated carbon fibers or nanofibers.

In the multi-stage filter cigarette holder provided by the utility model, since the first filter assembly includes a filter tube and at least one first filter core, an airtight smoke chamber is formed between the outer peripheral surface of the first filter core and the inner wall of the filter tube. A smoke inlet for connecting the smoke chamber with the smoke inlet of the filter tube and a smoke outlet for connecting the smoke chamber with the smoke outlet of the filter tube are provided, and the inlet The flue includes at least one orifice. When the flue gas enters through the orifice from the smoke inlet of the filter tube, the speed of the flue gas will increase, and the temperature will decrease at the same time, resulting in a condensation effect, and the cooled tar will be adsorbed on the wall of the smoke chamber, so that the tar and smoke Gas separation, the filtering effect is stable and reliable; moreover, when cleaning, only the first filter element needs to be taken out to clean the tar on the surface of the first filter element, and the cleaning is very convenient; in addition, the first filter element is realized by throttling The separation of tar and flue gas has the beneficial effects of simple structure and low cost compared with filtering methods such as sponges.

The beneficial effects of the additional technical features of the utility model will be described in the specific implementation mode of this specification.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the multi-stage filter cigarette holder in the utility model embodiment;

Fig. 2 is a schematic cross-sectional structure diagram of a multi-stage filter cigarette holder in an embodiment of the present invention;

Fig. 3 is a schematic diagram of the decomposition structure of the multi-stage filter cigarette holder in the embodiment of the present invention;

Fig. 4 is a schematic cross-sectional structural view of the first filter assembly of the multi-stage filter cigarette holder in the embodiment of the present invention;

Fig. 5 is a schematic cross-sectional structure diagram of a secondary first filter element in an embodiment of the present invention;

Fig. 6 is a schematic diagram of the three-dimensional structure of the secondary first filter element in the embodiment of the present invention;

7 is a schematic cross-sectional structural view of a second filter tube of a second filter assembly in an embodiment of the present invention;

Fig. 8 is a schematic cross-sectional structural view of the second filter element of the second filter assembly in the embodiment of the present invention.

Explanation of reference signs: 1, sleeve; 1a, cigarette hole; 2, mouthpiece; 3, filter tube; 4, first-level filter element; 5, second-level first filter element; 51, annular groove; 52, second 1 blind hole; 53, throttling hole; 54, second blind hole; 55, through hole; 56, first step surface; 57, second step surface; 58, third step surface; 59, installation groove; 6, Three-stage first filter element; 7, sealing ring; 8, second filter element; 9, gasket; 10, smoke chamber.

Detailed ways

The utility model is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments. It should be noted that, in the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.

As shown in Figures 1-3, the multi-stage filter cigarette holder in one of the embodiments of the utility model includes a sleeve 1, a multi-stage filter assembly and a mouthpiece 2, and the sleeve 1 is connected to the head end of the multi-stage filter assembly To connect, the sleeve 1 is provided with a cigarette insertion hole 1a for inserting cigarettes, and the cigarette insertion hole 1a is used to support filter cigarettes. The cigarette insertion hole 1a in this embodiment is a stepped hole, the large hole at the front of the stepped hole is used to support the thick smoke, and the small hole at the rear of the stepped hole supports the fine smoke, so as to avoid frequent replacement of the casing 1 .

2, 4-6, the multistage filter assembly includes a first filter assembly, the first filter assembly includes a filter tube 3 and a first filter element, the filter tube 3 is a hollow tubular structure, and the rear end of the filter tube 3 An external thread is provided, and the front end of the mouthpiece 2 is provided with an internal thread matched with the external thread, and the rear end of the filter tube 3 is connected to the front end of the mouthpiece 2 through threads.

The first filter core is arranged in the inner hole of the filter tube 3, and an airtight smoke chamber 10 is formed between the outer peripheral surface of the first filter core and the inner wall of the filter tube 3. The smoke chamber 10 communicates with the smoke inlet of the filter pipe 3 and the smoke outlet for connecting the smoke chamber 10 with the smoke outlet of the filter pipe 3, and the smoke inlet At least one orifice 53 is included.

There is at least one first filter element, and in order to increase the filtering effect, multiple first filter elements connected in series may be used. As shown in Figures 2 and 4, in this embodiment, three first filter elements are used, from the head end to the tail end of the multi-stage filter assembly are respectively a first-level first filter element 4, a second-level first filter element 5 and a third-level first filter element. A filter element6. The structures of the first-stage first filter element 4 , the second-stage first filter element 5 , and the third-stage first filter element 6 are substantially the same, and the structure of the first filter element will be described below taking the second-stage first filter element 5 as an example.

As shown in Figures 5 and 6, an annular groove 51 is arranged on the outer peripheral surface of the middle part of the second stage first filter element 5. An airtight smoke chamber 10 is formed between the inner walls of 3 . A flue inlet and a flue outlet communicating with the smoke chamber 10 are provided on the second-stage first filter element 5 , and the flue inlet includes at least one throttle hole 53 . When the flue gas enters through the orifice 53 from the smoke inlet of the filter tube 3, the speed of the flue gas will increase, and at the same time, the temperature will decrease, resulting in a condensation effect, and the cooled tar will be adsorbed on the wall of the smoke chamber 10, so that The tar is separated from the flue gas.

In this embodiment, the flue inlet includes a first shaft extending axially along the two-stage first filter element 5 arranged on the end of the two-stage first filter element 5 close to the head end side of the multi-stage filter assembly. Blind hole 52 , the throttle hole 53 extends radially along the second-stage first filter element 5 , and one end of the throttle hole 53 communicates with the first blind hole 52 , and the other end communicates with the smoke chamber 10 connected. In order to increase the filtering effect, there are multiple throttle holes 53 , and the multiple throttle holes 53 are evenly distributed along the circumferential direction of the second-stage first filter element 5 .

In one embodiment, the outer peripheral surface of the secondary first filter element 5 corresponding to the smoke chamber 10 is a stepped surface, which can increase the contact area with the smoke and improve the filtering effect. Preferably, the outer peripheral surface of the two-stage first filter element 5 corresponding to the smoke chamber 10 includes a first stepped surface 56 and a second stepped surface 57 sequentially connected from the head end to the tail end of the multi-stage filter assembly. And the third stepped surface 58, the outer diameter of the first stepped surface 56 is larger than the outer diameter of the third stepped surface 58, and the second stepped surface 57 is a slope, so that the contact area is larger and the separation effect of tar and smoke is better .

The flue outlet includes a second blind hole 54 extending axially along the second-stage first filter element 5 , which is arranged on the end of the second-stage first filter element 5 close to the rear end of the multi-stage filter assembly And a through hole 55 arranged radially along the secondary first filter element 5 , one end of the through hole 55 communicates with the second blind hole 54 , and the other end communicates with the smoke chamber 10 .

The front end of the second-stage first filter element 5 is provided with an external thread, and the rear end of the first-stage first filter element 4 is provided with an internal thread that matches the external thread. The rear end of a filter element 4 is threaded. The rear end of the second-stage first filter element 5 is provided with an internal thread, and the front end of the third-stage first filter element 6 is provided with an external thread that cooperates with the internal thread. The front end of the first filter element 4 is screwed. In this way, the three first filter elements are connected in series to form a three-stage filter.

An annular installation groove 58 is provided on the outer peripheral surfaces of the first-stage first filter element 4 , the second-stage first filter element 5 and the third-stage first filter element 6 , and a sealing ring 7 is installed in the installation groove 58 . The sealing ring 7 slides in the inner hole of the filter tube 3, and the outer side of the sealing ring 7 is in close contact with the inner hole of the filter tube 3, forming three independent smoke chambers 10 in the inner hole of the filter tube 3, which is convenient for independent filtering of smoke. Since the outer side of the sealing ring 7 is connected with the inner hole of the filter tube 3 at a high level, the friction force between the first filter element and the inner hole of the filter tube 3 is reduced, which facilitates the disassembly and cleaning of the subsequent filter element. The sealing ring 7 can wipe off the tar remaining on the surface of the inner hole of the filter tube 3 to keep the filter tube 3 clean.

The filter tube 3 in this embodiment is made of transparent material, the smoker can see the tar in the smoke chamber 10 through the filter tube 3, so as to remind the smoker to smoke less.

As shown in FIGS. 1-3 , the filter assembly further includes a second filter assembly, which is arranged between the sleeve 1 and the first filter assembly. As shown in Figures 7 and 8, the second filter assembly includes a second filter element 8, which is made of microporous and breathable ceramics, activated carbon fibers or nanofibers. In this embodiment, the front end of the first-stage filter element 4 is located outside the filter tube 3, the first blind hole 52 of the first-stage first filter element 4 is provided with an internal thread, and the rear end of the casing 1 is provided with a The external thread matched with the internal thread, the front end of the first filter element 4 is threadedly connected with the rear end of the casing 1 to form a filter cavity, and the second filter element 8 is installed in the filter cavity. A gasket 9 is provided between the second filter element 8 and the casing 1 for sealing the flue gas.

The mouthpiece 2 is connected with the tail end of the filter assembly, and is used for biting with the mouth. The mouthpiece 2 is made of black food-grade plastic injection molding, non-toxic, heat-stable, and has a mild and comfortable taste.

The working principle of the multi-stage filter cigarette holder in the present embodiment is as follows:

The flue gas passes through the second filter element 8 first, and the flue gas is filtered in the first stage. Then through the first filter assembly, the first filter assembly filters the flue gas three times again. Experimental results show that: using the multi-stage filter cigarette holder of the present utility model, the filtration of tar in filter-tip cigarettes reaches 95% of the total tar content of a single filter-tip cigarette, and the filtration efficiency is 2 times that of a single-stage cigarette holder; and, the multi-stage filter cigarette The components of the filter cigarette holder are produced in modules, which is convenient and quick to assemble and easy to industrialize.

The above-mentioned embodiments only express several implementation modes of the present utility model, and the description thereof is relatively specific and detailed, but it should not be construed as limiting the patent scope of the present utility model. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the utility model, and these all belong to the protection scope of the utility model.

Claims (10)

1. a kind of multistage filtering cigarette holder, including：

Casing is provided with the tobacco insert hole for inserted into cigarette on the casing；

The head end of multistage filtering component, the multistage filtering component is connect with described sleeve pipe, and

Bite, the bite are connect with the tail end of the filter assemblies；

It is characterized in that, the multistage filtering component includes the first filter assemblies, which includes chimney filter and at least One the first filter core, first filter core are set in the chimney filter, shape between the peripheral surface of first filter core and the inner wall of chimney filter At closed smoke-box, it is provided with the flue being connected to the smoke-box on first filter core and goes out flue, and the flue Including at least one throttle orifice.

2. multistage filtering cigarette holder according to claim 1, which is characterized in that the flue further includes along first filter The first axially extending blind hole of core, the throttle orifice are radially extended along first filter core, and one end of the throttle orifice and institute The connection of the first blind hole is stated, the other end is connected to the smoke-box.

3. multistage filtering cigarette holder according to claim 2, which is characterized in that the throttle orifice is multiple, multiple sections Discharge orifice is uniformly distributed along the circumferencial direction of first filter core.

4. multistage filtering cigarette holder according to claim 2, which is characterized in that first filter core corresponding to the smoke-box Peripheral surface be step surface.

5. multistage filtering cigarette holder according to claim 4, which is characterized in that first filter core corresponding to the smoke-box Peripheral surface include from the head end of multistage filtering component to the sequentially connected First terrace of tail end, second step face and third platform Terrace, the outer diameter of the First terrace are more than the outer diameter of the third step surface, which is inclined-plane.

6. multistage filtering cigarette holder according to claim 2, which is characterized in that it is described go out flue include along first filter core The second axially extending blind hole and the through-hole being radially arranged along first filter core, one end of the through-hole connect with second blind hole Logical, the other end is connected to the smoke-box.

7. multistage filtering cigarette holder according to claim 1, which is characterized in that the chimney filter is made of transparent material.

8. multistage filtering cigarette holder according to claim 1, which is characterized in that including more than two first filter cores, Two neighboring first filter core is connected through a screw thread, and the mounting groove of annular is provided on the peripheral surface of first filter core, Sealing ring is housed in the mounting groove.

9. multistage filtering cigarette holder as claimed in any of claims 1 to 8, which is characterized in that the filter assemblies are also Including the second filter assemblies, which is set between described sleeve pipe and first filter assemblies.

10. multistage filtering cigarette holder according to claim 9, which is characterized in that second filter assemblies include the second filter Core, second filter core are made of micro-porous permeable ceramics, activated carbon fibre or nanofiber.