Cigarette holder filtering device

Abstract

The utility model provides a cigarette holder filtering device which comprises a cigarette holder, a cigarette holder, a catalytic decomposition bin and a catalytic assembly. One end of the cigarette holder is provided with a connector, the other end is connected with the cigarette holder, and a filter cavity is formed at the connection position; the catalytic decomposition bin is arranged in the filtering cavity, and the catalytic assembly is arranged in the catalytic decomposition bin; the connector, the catalytic decomposition bin and the cigarette holder are sequentially communicated. The length of the catalytic decomposition bin in the smoke outlet direction is larger than or equal to 20 mm; according to the utility model, smoke generated by combustion of cigarette products can be filtered, so that harmful parts in the smoke are removed, and the harmless parts are reserved for a user to smoke; moreover, the length of the catalytic decomposition bin in the smoke outlet direction is larger than or equal to 20 mm, the flowing time of the smoke in the catalytic decomposition bin is long, and the smoke can make contact with the inner surface of the catalytic decomposition bin and the catalytic assembly for a long time, so that harmful parts in the smoke can be catalyzed as much as possible and consumed as soon as possible.

Description

Technical Field

[0001] The utility model relates to the technical field of smoking utensil products, in particular to a cigarette holder filter device. Background Art

[0002] When cigarette products are burned, they produce smoke, which contains harmful substances. When users inhale the smoke, they will inhale these harmful substances into the mouth and other respiratory tracts. In the long run, it will endanger the health of the user's respiratory system. For the sake of the user's health, it is necessary to separate the harmful substances from the harmless substances in the smoke and decompose the harmless substances for the user to inhale. Based on this, the present application designs a device that can filter the smoke generated by the burning of cigarette products. Utility Model Content

[0003] In order to overcome at least one of the defects of the above-mentioned prior art, the utility model provides a cigarette holder filter device. The interface of the utility model can be connected to a cigarette product, and the catalytic decomposition chamber and the catalytic component in the filter cavity can simultaneously filter and catalyze the smoke generated by the combustion of the cigarette product to remove harmful parts in the smoke and retain harmless parts for users to inhale; moreover, the length of the catalytic decomposition chamber along the smoke outlet direction is greater than or equal to 20 mm, so that the smoke can be kept inside for a long time to flow, and the smoke can contact the inner surface of the catalytic decomposition chamber and the catalytic component for a long time, so that the harmful substances in the smoke are fully catalyzed and filtered.

[0004] The technical solution adopted by the utility model to solve the problem is:

[0005] A cigarette holder filter device is proposed, comprising a cigarette holder, a cigarette holder, a catalytic decomposition chamber and a catalytic component; one end of the cigarette holder is provided with an interface, the other end is connected to the cigarette holder, and a filter cavity is formed at the connection position; the catalytic decomposition chamber is arranged inside the filter cavity, and the catalytic component is arranged inside the catalytic decomposition chamber; the interface, the catalytic decomposition chamber and the cigarette holder are connected in sequence; and the length of the catalytic decomposition chamber along the smoke outlet direction is greater than or equal to 20 mm.

[0006] Furthermore, the length of the catalytic decomposition chamber along the smoke outlet direction is 30 mm-40 mm.

[0007] Furthermore, the catalytic decomposition chamber has a first opening corresponding to the interface, and has a second opening corresponding to the cigarette holder; the average inner diameter of the catalytic decomposition chamber is greater than the inner diameter of the second opening.

[0008] Furthermore, the catalytic component and / or the catalytic decomposition chamber is made of alloy copper.

[0009] Furthermore, a necking is formed at a position of the interface communicating with the filter cavity, and an inner diameter of the necking is less than or equal to 5 mm.

[0010] Furthermore, the length of the constricted opening along the smoke outlet direction of the interface is greater than or equal to 3 mm, and the inner diameter of the constricted opening gradually decreases along the smoke outlet direction of the interface.

[0011] Furthermore, the interface is in a multi-step shape.

[0012] Furthermore, the cigarette holder is detachably connected to the cigarette holder.

[0013] Further, the catalytic assembly includes a spring component, and the spring component is spirally arranged along the direction of smoke flow; or, the catalytic assembly includes a plurality of catalytic components, and the catalytic components are arranged along the direction of smoke flow.

[0014] Furthermore, a diverter plate is provided inside the cigarette holder at a position where the filter cavity is connected to the interface.

[0015] The utility model proposes a cigarette holder filter device, which has the following beneficial effects compared with the prior art:

[0016] One end of the cigarette holder is provided with an interface, and the other end is connected to the cigarette holder, and a filter cavity is formed at the connection position, the catalytic decomposition chamber is arranged inside the filter cavity, the catalytic component is arranged inside the catalytic decomposition chamber, the interface, the catalytic decomposition chamber and the cigarette holder are connected in sequence, and the length of the catalytic decomposition chamber along the smoke outlet direction is greater than or equal to 20mm; the interface of the utility model can be connected to a cigarette product, and the catalytic decomposition chamber and the catalytic component in the filter cavity can simultaneously filter and catalyze the smoke generated by the combustion of the cigarette product to remove harmful parts in the smoke and retain harmless parts for users to inhale; moreover, the length of the catalytic decomposition chamber along the smoke outlet direction is greater than or equal to 20mm, the smoke can be kept inside for a long time to flow, and the smoke can contact the inner surface of the catalytic decomposition chamber and the catalytic component for a long time, so that the harmful substances in the smoke are fully catalyzed and filtered. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a cigarette holder filter device according to an embodiment of the utility model;

[0018] Figure 2 for Figure 1 An internal cross-sectional view of a cigarette holder filter device shown in ;

[0019] Figure 3 It is a cross-sectional schematic diagram of the exploded components of the cigarette holder filter device of another embodiment of the utility model;

[0020] Figure 4 for Figure 3 An internal cross-sectional view of a cigarette holder filter device shown in ;

[0021] Figure 5 An internal cross-sectional view of a plurality of catalytic components selected for the catalytic assembly of the utility model;

[0022] The meanings of the reference numerals are as follows:

[0023] 1. Cigarette holder; 2. Cigarette mouthpiece; 3. Catalytic component; 4. Interface; 5. Filter chamber; 6. Narrow opening; 7. Catalytic decomposition chamber; 8. First opening; 9. Second opening; 10. Spring component; 11. Catalytic component; 12. Diverter plate; 13. Filter body; 14. Interface body; 15. Sealing component; 16. Connecting wire. DETAILED DESCRIPTION

[0024] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0025] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0027] like Figure 1-Figure 5 As shown in , the embodiment of the utility model proposes a cigarette holder filter device, including a cigarette holder 1, a cigarette holder 2, a catalytic decomposition chamber 7 and a catalytic component 3; one end of the cigarette holder 1 is provided with an interface 4, and the other end is connected to the cigarette holder 2, and a filter cavity 5 is formed at the connection position; the catalytic decomposition chamber 7 is arranged inside the filter cavity 5, and the catalytic component 3 is arranged inside the catalytic decomposition chamber 7; the interface 4, the catalytic decomposition chamber 7 (filter cavity 5) and the cigarette holder 2 are connected in sequence; and the length of the catalytic decomposition chamber 7 along the smoke outlet direction is greater than or equal to 20mm. A constriction 6 is formed at the position where the interface 4 is connected to the filter cavity 5, and the inner diameter b of the constriction 6 is less than or equal to 5mm.

[0028] Based on the above technical solution, the interface 4 of the utility model can be connected to a cigarette product, and the catalytic decomposition chamber 7 and the catalytic component 3 in the filter cavity 5 can simultaneously filter and catalyze the smoke generated by the burning of the cigarette product to remove harmful parts in the smoke and retain harmless parts for users to inhale; moreover, the length of the catalytic decomposition chamber 7 along the smoke outlet direction is greater than or equal to 20 mm, so that the smoke can be retained inside for a long time to flow, and the smoke can be in contact with the inner surface of the catalytic decomposition chamber 7 and the catalytic component 3 for a long time, so that the harmful substances in the smoke are fully catalyzed and filtered.

[0029] In order to improve the filtering effect, a multi-stage filtering structure can be arranged in the filtering cavity 5 . In some embodiments, the cigarette holder filtering device includes a catalytic decomposition chamber 7 .

[0030] The material of the catalytic component 3 and / or the catalytic decomposition chamber 7 is alloy copper. Optionally, the alloy copper can be an alloy composed of copper and one or more other elements, or a nano alloy composed of nano particles of copper and other materials. Specifically, the alloy copper material is used to catalyze alkanes, alkenes, benzene series, aldehydes, acids and polycyclic aromatic hydrocarbons, etc., to filter out alkanes, alkenes, benzene series, aldehydes, acids and polycyclic aromatic hydrocarbons in the flue gas, thereby reducing the content of substances such as tar, nicotine and nitrosamines in the flue gas, and then filtering out harmful components in the flue gas.

[0031] When smoke enters the filter chamber 5, the smoke will come into contact with the surface of the catalyst component 3 and the catalytic decomposition chamber 7, so that the catalyst component 3 or the catalytic decomposition chamber 7 made of alloy copper will undergo a catalytic reaction with alkanes, alkenes, benzene series, aldehydes, acids and polycyclic aromatic hydrocarbons, thereby filtering out substances such as alkanes, alkenes, benzene series, aldehydes, acids and polycyclic aromatic hydrocarbons in the smoke, thereby effectively reducing the content of harmful components such as tar, nicotine and nitrosamines in the smoke.

[0032] In addition, the material of the catalytic component 3 or the catalytic decomposition chamber 7 can also be nano copper or platinum-palladium alloy, etc.

[0033] The catalytic decomposition chamber 7 has a first opening 8 corresponding to the constriction 6, and has a second opening 9 corresponding to the mouthpiece 2. The first opening 8 is communicated with the smoke outlet - the constriction 6 of the interface 4, and the second opening 9 is communicated with the smoke inlet of the mouthpiece 2. The catalytic component 3 is spirally arranged in the catalytic decomposition chamber 7 along the direction of smoke flow. The smoke enters the catalytic decomposition chamber 7 through the interface 4 and the first opening 8. The smoke diffused in the catalytic decomposition chamber 7 can contact the catalytic component 3 and the inner surface of the catalytic decomposition chamber 7, and filtering and catalytic reaction occur. The catalytic component 3 is spirally arranged along the direction of smoke flow, which can increase the contact area between the smoke and the catalytic component 3. Under the double catalytic action of the catalytic component 3 and the catalytic decomposition chamber 7, the filtering effect of components such as alkanes, alkenes, benzene series, aldehydes, acids and polycyclic aromatic hydrocarbons in the smoke is improved, thereby reducing the content of harmful substances such as tar, nicotine and nitrosamines in the smoke.

[0034] In some embodiments, in order to allow the smoke to be fully catalytically reacted in the catalytic decomposition chamber 7, the length of the catalytic decomposition chamber 7 along the smoke outlet direction is greater than or equal to 20 mm. In some embodiments, the length of the catalytic decomposition chamber is 30 mm-40 mm. Here, the smoke will flow longer inside the catalytic decomposition chamber 7, and the time it contacts the inner surface of the catalytic decomposition chamber 7 will be longer, so that the harmful parts in the smoke will be catalytically reacted.

[0035] Optionally, the filter chamber 5 , the catalytic decomposition chamber 7 and the catalytic assembly 3 share the same axis, so that smoke enters the filter chamber 5 and diffuses, and the smoke can better contact the catalytic decomposition chamber 7 and the filter chamber 5 evenly.

[0036] Furthermore, the average inner diameter of the catalytic decomposition chamber 7 is larger than the inner diameter of the second opening 9, that is, the inner diameter of the first opening 8 is larger than the inner diameter of the second opening 9, and the catalytic decomposition chamber 7 receives the smoke input from the interface 4 through the first opening 8 with a larger inner diameter, and at the same time, the catalytic decomposition chamber 7 transports the smoke to the mouthpiece 2 through the second opening 9 with a smaller inner diameter, that is, the difference in inner diameter between the first opening 8 and the second opening 9 is utilized to make it easier for the smoke to enter the catalytic decomposition chamber 7, and at the same time, the rate at which the smoke flows out of the catalytic decomposition chamber 7 is slowed down, so that the smoke has more catalytic reaction time with the catalytic component 3 and the catalytic decomposition chamber 9, thereby improving the catalytic effect and further reducing the filtering of harmful components in the smoke.

[0037] In addition, a constriction 6 is formed at the position of the interface 4 that is connected to the filter chamber 5, and the inner diameter b of the constriction 6 is less than or equal to 5 mm. This can slow down the rate at which smoke enters the filter chamber 5, that is, slow down the rate at which smoke flows in the filter chamber 5, so that the smoke has enough time to contact the catalytic component 3 in the filter chamber 5, so that the harmful parts in the smoke can be fully catalyzed and consumed as soon as possible.

[0038] The user's habit of smoking cigarettes can be compared to the action of "sighing" in daily life. When "sighing", the resentment, anger, etc. accumulated in the human body will be discharged from the body, thereby relaxing the body and keeping awake; the present application decomposes the smoke produced by the burning of cigarette products, filters out harmful substances in the smoke, and retains harmless substances for users to inhale. Users inhale and exhale smoke containing only harmless substances, and it will not affect the taste and relaxing effect.

[0039] In some embodiments, the length of the constriction 6 along the smoke outlet direction of the interface 4 is greater than or equal to 3 mm. Preferably, the length of the constriction 6 along the smoke outlet direction exceeds 10 mm, which greatly slows down the rate at which smoke enters the filter chamber 5; and, along the smoke outlet direction of the interface 4, the inner diameter of the constriction 6 gradually becomes smaller. The smaller the inner diameter, the smaller the rate at which smoke enters the filter chamber 5, and the smaller the rate at which smoke flows inside the filter chamber 5. The longer the contact time between the smoke and the catalytic component 3 will be, and the more harmful parts in the smoke will be catalyzed.

[0040] At present, some brands of cigarette products on the market have different diameters of cigarette butts. In order to adapt to cigarette butts of different diameters, the interface 4 is in a multi-step shape, which is convenient for users to enjoy different brands of cigarette products.

[0041] In some embodiments, the shape of the interface 4 is three-step, and its inner diameter at the first step position is greater than 3 mm and less than 7 mm, and then the inner diameter at the second step position and the inner diameter at the third step position gradually increase. Preferably, the inner diameter a at the third step position is greater than or equal to 7 mm.

[0042] Generally, the shape of the existing cigarette holder filter structure is columnar, cylindrical or wide flat columnar. The shape of the cigarette holder filter device of the utility model can also be cylindrical or wide flat columnar. In order to facilitate users to carry, generally, the cigarette holder filter device is in the shape of a slender column. On this basis, in order to facilitate users to play with it, it is necessary to add some curvature to the appearance of the cigarette holder 1 and the cigarette holder 2 of the cigarette holder filter device. It can be observed from the main viewing angle of the interface 4 that at least part of the outer contour of the figure formed by the cigarette holder 1 is an arc, which conforms to the ergonomic structure of the hand, and the user will not hurt the hand when playing with the cigarette holder filter device for a long time. Furthermore, when observed from the main viewing angle of the interface 4, the outer contour of the figure formed by the cigarette holder 1 includes a circle and an ellipse. When blow-molding the cigarette holder 1, the cylindrical cigarette holder is preferably blow-molded successfully, and the product yield is high. In addition, the material of the cigarette holder 1 can be selected from BMC material. BMC (Bulk Molding Compounds) is a thermosetting plastic, the full name of which is bulk molding compound, also known as DMC (Dough Molding Compounds). Compounds), BMC is mainly composed of unsaturated polyester resin, glass fiber, quartz powder, talcum powder and other fillers, as well as various additives. BMC has excellent electrical properties, mechanical properties, heat resistance, chemical corrosion resistance and no odor, and is suitable for various molding processes. The material properties of BMC are used to manufacture the cigarette holder 1, and no shrinkage will occur during injection molding, ensuring that the appearance of the cigarette holder 1 is good-looking, which can improve the yield of manufacturing the cigarette holder and effectively shorten the manufacturing cycle of the cigarette holder filter device. The surface of the manufactured cigarette holder 1 is very smooth, and impurities such as grease on the surface can be cleaned arbitrarily after use.

[0043] In some embodiments, the diameter c of the cigarette holder 1 can be 10mm, the inner diameter a of the interface 4 at the third step position is about 7mm, the inner diameter at the first step position is about 5mm, and the inner diameter b at the constricted position is 3mm. The inner diameter of the filter cavity 5 inside the cigarette holder 1 is about 7mm, which is equivalent to the inner diameter of the interface 4 at the third step position, and the inner diameter d of the smoke outlet channel inside the cigarette holder 2 is about 3mm. In this way, when the user inhales into the cigarette holder 2, the width of the path of the smoke flow is first 7mm, and then gradually decreases to 3mm, which can slow down the flow rate of the smoke. After that, the path width increases to 7mm, that is, it enters the filter cavity 5. In the initial entry stage, the smoke flow rate is slow, but it can diffuse. The smoke can contact the catalytic component 3 inside the filter cavity for a long time and over a large area. The harmful substances contained in it are completely catalyzed by the catalytic component 3, leaving the harmless part, and then enter the smoke outlet channel of the cigarette holder 2.

[0044] Furthermore, for the convenience of processing, the cigarette holder 1 and the cigarette holder 2 can be manufactured separately, and then assembled after manufacturing. For the convenience of assembly and subsequent cleaning and maintenance, the cigarette holder 1 and the cigarette holder 2 can be detachably connected, and the detachable connection methods include threaded connection, snap connection, magnetic connection, etc.

[0045] For the convenience of processing, the cigarette holder 1 is split into two parts. In some embodiments, the cigarette holder 1 includes a filter body 13 and an interface body 14. One end of the filter body 13 is connected to the cigarette holder 2, and a filter cavity 5 is formed at the connection position. The other end of the filter body 13 is connected to the interface body 14, and a sealing component 15 is provided at the connection position to prevent smoke from escaping from the connection position. Generally, the filter body 13 and the interface body 14 are detachably connected, and the detachable connection method includes a threaded connection, a snap connection, etc. In other embodiments, the filter body 13 can be an integral structure with the cigarette holder 2 for easy processing together.

[0046] Furthermore, in order to match the appearance of the cigarette holder 1, the surface of the cigarette holder 2 needs to be smooth. When the cigarette holder 2 is assembled with the cigarette holder 1, the appearance can give the user a unified and coordinated feeling. If the surface of the cigarette holder 2 is rough, it will give the user a very abrupt feeling. The utility model can apply some glossy materials on the surface of the cigarette holder 2, or the material of the cigarette holder 2 is metal. Generally, the surface of the metal material is very smooth and can be directly manufactured into the cigarette holder 2. This can avoid applying glossy materials on the surface of the cigarette holder 2 and shorten the product construction period.

[0047] Generally, when smoke flows in the filter chamber 5, it is necessary to ensure that there is a sufficiently large contact area between the smoke and the catalytic component 3 so that the catalytic component 3 can filter out harmful substances in the smoke to the maximum extent. At the same time, it is necessary to ensure that the catalytic component 3 does not hinder the flow of smoke.

[0048] In the filter chamber 5, the catalytic component 3 is arranged in a spiral shape along the direction of smoke flow. For example, in some embodiments, the catalytic component 3 includes a spring component 10, which is arranged in a spiral shape along the direction of smoke flow. The spring component 10 is located inside the filter chamber 5, and its two ends are respectively abutted against the inner walls of the cigarette holder 1 and the cigarette holder 2. The spiral direction of the spring component 10 is consistent with the direction of smoke flow and will not hinder the flow of smoke. At the same time, the contact area between the spring component 10 and the smoke is large enough; in other embodiments, the catalytic component 3 includes a plurality of catalytic components 11, which are arranged in the direction of smoke flow, and the catalytic components 11 are located inside the filter chamber 5. There are gaps between the catalytic components 11 and there are gaps between the catalytic components 11 and the inner wall of the cigarette holder 1, and these catalytic components 11 can be arranged side by side along the direction of smoke flow.

[0049] When the smoke passes through the spring component 10 or the catalytic component 11, it will contact the surface of the spring component 10 or the catalytic component 11, and the harmful substances in the smoke will be filtered out, leaving the harmless part, which will enter the mouthpiece for the user to inhale.

[0050] The catalytic components 11 of the present invention can be individual entities, which can be loaded into the filter cavity 5. In addition, considering the actual size of the mouthpiece 2 and to avoid the catalytic components 11 from clogging the mouthpiece 2 and the filter cavity 5, the outer diameter of the catalytic components 11 is 3 mm-10 mm.

[0051] In addition, in order to ensure that harmful substances in smoke can be fully decomposed and filtered, the number of the catalytic components 11 of the utility model can be 5 or more.

[0052] In order to facilitate the arrangement of the catalytic components 11 along the direction of smoke flow, the utility model adopts the method of stringing the catalytic components 11 together through a connecting line 16 .

[0053] Due to the existence of the connecting line 16, the relative distance between two adjacent catalytic components 11 is limited, and it is difficult for the two adjacent catalytic components 11 to be arranged in the same position. In addition, due to the stress between the connecting line 16 and the catalytic components 11, the catalytic components 11 are somewhat entangled with each other, so that the catalytic components 11 can be arranged along the direction of smoke flow, and it is very rare that two catalytic components 11 are arranged in the same position at the same time, which also avoids the congestion of the filter chamber.

[0054] The shapes of the catalytic components 11 include spherical, columnar, conical, ellipsoidal, annular and spindle. Preferably, the shape of the catalytic components 11 is spherical. The gaps between the spherical catalytic components 11 are relatively large, which can ensure smooth flow of smoke and avoid congestion.

[0055] The inner diameter of the constriction 6 of the interface 4 connected to the filter chamber 5 is relatively small. When the smoke leaves the interface 4 and enters the filter chamber 5, the smoke is difficult to diffuse evenly, but directly contacts part of the catalytic component 3. This will result in the rest of the catalytic component 3 not being contacted with the smoke. The part of the catalytic component 3 that was previously in contact with the smoke has limited effect in decomposing and filtering harmful substances due to the large amount of smoke, and there is a possibility that harmful substances are mixed in the smoke and inhaled by the user.

[0056] Therefore, it is necessary to divert the smoke entering the filter chamber 5. A diverter plate 12 is provided inside the cigarette holder 1 and at the position where the filter chamber 5 is connected to the interface 4. The diverter plate 12 can divert the smoke entering the filter chamber 5 from the interface 4 so that it can be evenly diffused before contacting the catalytic component 3, thereby ensuring that the smoke can fully contact the catalytic component 3 and the harmful substances can be fully decomposed and filtered.

[0057] The technical means disclosed in the solution of the utility model are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical solutions composed of any combination of the above technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications are also regarded as the protection scope of the utility model.

Claims

1. A cigarette holder filter device, It is characterized in that It includes a cigarette holder, a cigarette holder, a catalytic decomposition chamber and a catalytic component; One end of the cigarette holder is provided with an interface, and the other end is connected to the cigarette holder, and a filter cavity is formed at the connection position; The catalytic decomposition chamber is arranged inside the filter cavity, and the catalytic component is arranged inside the catalytic decomposition chamber; The interface, the catalytic decomposition chamber and the cigarette holder are connected in sequence; Furthermore, the length of the catalytic decomposition chamber along the smoke outlet direction is greater than or equal to 20 mm.

2. The cigarette holder filter device according to claim 1, It is characterized in that The length of the catalytic decomposition chamber along the smoke outlet direction is 30 mm-40 mm.

3. The cigarette holder filter device according to claim 1, It is characterized in that The catalytic decomposition chamber has a first opening corresponding to the interface, and has a second opening corresponding to the mouthpiece; the average inner diameter of the catalytic decomposition chamber is greater than the inner diameter of the second opening.

4. The cigarette holder filter device according to claim 1, It is characterized in that The catalytic component and / or the catalytic decomposition chamber are made of alloy copper.

5. The cigarette holder filter device according to claim 1, It is characterized in that A constriction is formed at a position of the interface communicating with the filter cavity, and the inner diameter of the constriction is less than or equal to 5 mm.

6. The cigarette holder filter device according to claim 5, It is characterized in that The length of the constricted opening along the smoke outlet direction of the interface is greater than or equal to 3 mm, and the inner diameter of the constricted opening gradually decreases along the smoke outlet direction of the interface.

7. The cigarette holder filter device according to claim 1, It is characterized in that The interface is in a multi-step shape.

8. The cigarette holder filter device according to claim 1, It is characterized in that The cigarette holder is detachably connected to the cigarette holder.

9. The cigarette holder filter device according to claim 1, It is characterized in that The catalytic assembly includes a spring component, and the spring component is spirally arranged along the direction of smoke flow; Alternatively, the catalytic assembly includes a plurality of catalytic components, and the catalytic components are arranged along the direction of smoke flow.

10. The cigarette holder filter device according to claim 1, It is characterized in that A diverter plate is arranged inside the cigarette holder at a position where the filter cavity is connected to the interface.

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