Double-filtering cigarette holder

Abstract

The utility model discloses a double filtration cigarette holder, which relates to the field of cigarette holder filters, comprises a shell in which a filtration flow channel is arranged, and is characterized in that a filtration component and a catalysis component are sequentially arranged in the filtration flow channel, the filtration component is used for physically filtering smoke passing through the filtration flow channel, and the catalysis component is used for catalyzing the smoke passing through the filtration flow channel. According to the double-filtration cigarette holder, by means of cooperation of the filtration assembly and the catalysis assembly, double filtration of the smoke entering the filtration flow channel is achieved, physical filtration and chemical catalysis of the smoke are achieved, and then the content of harmful substances in the smoke is reduced; and the removal capability of the filter cigarette holder on harmful substances in smoke is effectively improved.

Description

Technical Field

[0001] This utility model relates to the technical field of cigarette holder filters, and more specifically, to a dual-filter cigarette holder. Background Technology

[0002] Filter cigarette holders can remove a large number of harmful substances from the mainstream smoke of cigarettes, reduce the tar content of cigarettes, and benefit human health.

[0003] In the existing technology, the filter mouthpiece adopts a combination of a rigid hollow transparent shell and a filter element. The filter cotton is installed in the hollow transparent shell. After smoking a certain amount, it can be directly removed and replaced with a new filter element for direct use. The filter part of the mouthpiece can generally be pulled out freely. It can be used again after wiping or washing with water, and can be cleaned and used multiple times.

[0004] The above solution uses a single filter cartridge, which only filters the cigarette butt through one stage. This has limited ability to remove harmful substances from the smoke, and thus still poses a significant risk to human health.

[0005] In conclusion, how to improve the ability of cigarette filters to remove harmful substances from cigarette smoke is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0006] In view of this, the purpose of this utility model is to provide a dual-filter cigarette holder that effectively improves the ability of the filter cigarette holder to remove harmful substances in the smoke and reduces the content of harmful substances in the smoke.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A dual-filter cigarette holder includes a housing with a filter channel inside. A filter component and a catalytic component are sequentially arranged in the filter channel. The filter component is used to physically filter the flue gas passing through the filter channel, and the catalytic component is used to chemically catalyze the flue gas passing through the filter channel.

[0009] Preferably, the filter assembly includes a filter element inserted into one end of the filter channel, and the filter element has a plurality of pore structures extending through it along the flue gas flow direction of the filter channel.

[0010] Preferably, the filter element is acetate fiber cotton.

[0011] Preferably, a mounting groove for mounting cigarettes is formed between the side of the filter element near the end of the housing and the inner wall of the filter channel.

[0012] Preferably, the catalytic assembly includes a mounting component inserted into the other end of the filter channel, wherein the mounting component has several non-interconnected catalytic channels extending through it along the flue gas flow direction of the filter channel, and the inner wall of each catalytic channel is coated with a catalyst.

[0013] Preferably, the catalytic channel is a helical channel.

[0014] Preferably, the catalytic channel is a straight channel.

[0015] Preferably, the housing is provided with a concentration adjustment structure, which is used to adjust the concentration of flue gas in the filter channel.

[0016] Preferably, the concentration adjustment structure includes a first vent on the housing and a second vent on the filter assembly or the catalyst assembly and in communication with the filter channel. The second vent can rotate with the filter assembly or the catalyst assembly so that the second vent is arranged coaxially or offset from the first vent.

[0017] Preferably, a spacer ring is provided in the filter channel, and the spacer ring is disposed on the filter assembly and the catalyst assembly, so that the filter assembly and the catalyst assembly are arranged at intervals in the filter channel.

[0018] The present invention provides a dual-filter cigarette holder, including a housing, a filter channel inside the housing, and a filter component and a catalytic component arranged sequentially inside the filter channel. The filter component is used to physically filter the flue gas passing through the filter channel, and the catalytic component is used to chemically catalyze the flue gas passing through the filter channel.

[0019] The dual-filter cigarette holder provided in this application, through the cooperation of the filter component and the catalytic component, achieves dual filtration of the flue gas entering the filter channel, realizing both physical filtration and chemical catalysis of the flue gas, thereby reducing the content of harmful substances and effectively improving the filter cigarette holder's ability to remove harmful substances from the flue gas. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of the dual-filter mouthpiece in this embodiment;

[0022] Figure 2 This is a schematic diagram of the spiral channel used in the dual-filter cigarette holder in this embodiment;

[0023] Figure 3 This is an exploded view of the spiral channel used in the dual-filter cigarette holder in this embodiment;

[0024] Figure 4 This is a schematic diagram of the catalytic component using a spiral channel in this embodiment;

[0025] Figure 5 This is a schematic diagram of the overall design of the dual-filter cigarette holder using a straight channel in this embodiment;

[0026] Figure 6 This is an exploded view of the dual-filter cigarette holder using a straight channel in this embodiment;

[0027] Figure 7 This is a schematic diagram of the integrated cigarette holder with a spiral channel in this embodiment.

[0028] Figure 8 This is a perspective view of the split installation structure of the cigarette using a spiral channel in this embodiment;

[0029] Figure 9 This is a schematic diagram of the integrated cigarette holder with a straight channel in this embodiment.

[0030] Figure 10 This is a perspective view of the separate installation structure of the cigarette stick using a straight channel in this embodiment.

[0031] Figures 1-10 In the accompanying drawings, the reference numerals include:

[0032] 1. Shell;

[0033] 2. Filter tank; 21. Filter element;

[0034] 3. Catalytic converter tank; 32. Catalytic converter assembly; 321. Mounting components; 322. Catalytic converter channel;

[0035] 4. First pore; 5. Second pore; 6. Spacer ring. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar words used in this utility model do not indicate any order, quantity, or importance. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly. An embodiment of this application discloses a dual-filter cigarette holder.

[0038] The core of this invention is to provide a dual-filter cigarette holder.

[0039] Please refer to Figures 1 to 10 .

[0040] The dual-filter cigarette holder provided by this utility model includes a housing 1, a filter channel is provided inside the housing 1, and a filter component and a catalytic component 32 are arranged sequentially in the filter channel. The filter component is used to physically filter the flue gas passing through the filter channel, and the catalytic component 32 is used to chemically catalyze the flue gas passing through the filter channel.

[0041] Specifically, traditional cigarette filter mouthpieces mostly use a combination of a rigid, hollow, transparent shell and a single filter element. While this design facilitates filter replacement and cleaning, its effectiveness in removing harmful substances from smoke is limited due to the single-stage filtration. These harmful substances, such as tar, nicotine, and other harmful substances, may still pose a threat to the smoker's health even after a single filtration. The dual-filter cigarette filter mouthpiece provided in this application introduces a dual mechanism for removing harmful substances through a filter component and a catalytic component 32. It not only utilizes physical filter materials to perform preliminary physical filtration of smoke, removing most particulate matter and harmful substances, but also further utilizes the catalytic materials in the catalytic component to chemically decompose the remaining harmful gases. This dual-filtration design greatly enhances the removal capacity of harmful substances in smoke, thereby more effectively reducing the harm of cigarettes to the human body. Furthermore, users can regularly clean or replace the filter component and catalytic component 32 to maintain the cleanliness and hygiene of the mouthpiece's interior, avoiding problems such as bacterial growth and clogging.

[0042] The aforementioned dual-filter cigarette holder, through the cooperation of the filter component and the catalytic component 32, achieves dual filtration of the flue gas entering the filter channel, realizing both physical filtration and chemical catalysis of the flue gas, thereby reducing the content of harmful substances and effectively improving the cigarette holder's ability to remove harmful substances from the flue gas.

[0043] The dual-filter cigarette holder provided by this utility model will be described in more detail below with reference to the accompanying drawings and specific embodiments.

[0044] In one specific embodiment, the housing 1 can be a transparent housing, which can effectively observe the flow of flue gas in the filter channel and the usage of the filter components and catalyst components 32, thereby determining whether replacement is necessary.

[0045] Based on any of the above embodiments, refer to Figures 1 to 6 The filter assembly includes a filter element 21 inserted into one end of the filter channel, and the filter element 21 has several pore structures that extend through it along the flue gas flow direction of the filter channel.

[0046] Specifically, a filter groove 2 is provided on one side of the housing 1, and a filter element 21 is inserted into the filter groove 2. As the core part of the filter assembly, the filter element 21 is designed with full consideration of the flow characteristics and filtration efficiency of the flue gas. The filter element 21 can be made of a filter material with small pores, such as activated carbon, ceramics, fiber composite materials, or other materials with high-efficiency adsorption and filtration performance. Along the flue gas flow direction, several pore structures are formed through the filter element 21. After the flue gas enters, harmful particulate matter is effectively trapped inside the filter material due to inertial collision effect, diffusion effect, interception effect, and gravitational settling effect. These pore structures not only provide a smooth channel for the flue gas, but more importantly, they can increase the contact area between the flue gas and the filter element 21, thereby improving the filtration efficiency.

[0047] It should be noted that activated carbon particles can be incorporated into filter element 21. Activated carbon has a huge surface area and rich pore structure, which can greatly enhance adsorption capacity. When harmful substances pass through the activated carbon layer, they will be adsorbed on the surface or inside the pores of the activated carbon, thereby reducing the content of particulate harmful substances inhaled by the human body and thus improving the filtration effect.

[0048] Furthermore, filter element 21 is preferably made of cellulose acetate fiber. As a high-performance filter material, cellulose acetate fiber has fine and tightly packed fibers that can form an effective filter layer, effectively intercepting tiny particles and harmful substances in smoke, such as tar and nicotine. At the same time, cellulose acetate fiber also has good air permeability and moisture absorption, allowing smoke to pass smoothly while reducing the dryness of the smoke and improving the smoking experience. In addition, cellulose acetate fiber also has excellent heat resistance and chemical stability. During smoking, the high temperature of the smoke will not cause significant damage to the cellulose acetate fiber, allowing it to maintain stable filtration performance for a long time. Moreover, cellulose acetate fiber is also highly resistant to chemical substances and does not easily react with harmful substances in the smoke, thus ensuring the purity and safety of the filtration.

[0049] Based on any of the above embodiments, refer to Figures 1 to 6 A mounting groove for installing cigarettes is formed between the side of the filter element 21 near the end of the housing 1 and the inner wall of the filter channel.

[0050] Specifically, the length of the filter groove 2 is greater than the length of the filter element 21. When the filter element 21 is completely filled, there is still some space in the filter groove 2, which serves as the installation groove. The size of the filter groove 2 matches the circumference of the cigarette, making it easy for the cigarette to be inserted into the filter groove 2 and fixed well by friction. Obviously, although this application provides an independent cigarette mouthpiece, the filter groove 2 can also be made into the form of a cigarette filter rod. The integrated cigarette design during cigarette making eliminates the need for installation, making it more convenient. (Refer to...) Figures 7 to 10 .

[0051] In one specific embodiment provided in this application, reference is made to Figures 1 to 6 The catalytic component 32 includes a mounting component 321 inserted into the other end of the filter channel. Several non-interconnected catalytic channels 322 are opened through the mounting component 321 along the flue gas flow direction of the filter channel. The inner wall of each catalytic channel is coated with a catalyst.

[0052] Specifically, the catalytic assembly 32 consists of a mounting component 321 and catalytic channels 322. The mounting component 321, acting as a support structure, is inserted into the catalytic groove 3 at the other end of the filter channel, forming a sequential arrangement with the filter element 21 to jointly complete the dual filtration and purification of the flue gas. The mounting component 321 can be made of high-temperature and corrosion-resistant materials, such as stainless steel or special alloys, to ensure structural stability and catalytic performance durability during long-term use. Its shape design conforms to the principles of fluid mechanics to reduce flow resistance when flue gas passes through, while ensuring that the flue gas can be evenly distributed into each catalytic channel 322. The catalytic channels 322 are opened through the mounting component 321 along the flue gas flow direction, forming several small, non-interconnected channels. The inner wall of each catalytic channel 322 is uniformly coated with a layer of catalyst. The design of these channels not only increases the contact area between the flue gas and the catalyst but also promotes turbulent flow of the flue gas within the channels, thereby improving the efficiency of the catalytic reaction. These catalysts can be noble metal catalysts (such as platinum and palladium), rare earth element catalysts, or other highly efficient catalytic materials. They can catalytically decompose harmful gases in flue gas at appropriate temperatures, such as converting carbon monoxide into carbon dioxide and reducing nitrogen oxides into nitrogen.

[0053] The flue gas, initially filtered by filter element 21, continues to flow into catalytic module 32. The flue gas is evenly distributed into each catalytic channel 322. Under the action of the catalyst, harmful gases in the flue gas undergo a chemical catalytic reaction, being converted into harmless or low-toxic substances. Simultaneously, due to the special design of the catalytic channel 322, the flue gas forms turbulence within the channel, further promoting the catalytic reaction. Finally, the catalytically purified flue gas flows out from the outlet of catalytic module 32, providing users with a healthier and safer smoking experience.

[0054] Based on any of the above embodiments, refer to Figures 2 to 4 Catalytic channel 322 is a helical channel.

[0055] Specifically, compared to other channels, the spiral channel can be set as long as possible within a limited space, thereby increasing the reaction time of flue gas with the catalyst in the catalytic channel 322, and effectively increasing the contact area between flue gas and catalyst to ensure sufficient chemical reaction and reduce the content of harmful gaseous substances as much as possible.

[0056] Based on any of the above embodiments, refer to Figure 5 and Figure 6 Catalytic channel 322 is a straight channel.

[0057] Specifically, compared to the spiral channel mentioned above, although the straight channel is not as long as the spiral channel, the straight channel can make full use of the space of the mounting component 321 to open multiple catalytic channels 322. As many catalytic channels 322 as possible can better promote the reaction between flue gas and catalyst. Setting multiple catalytic channels 322 can obtain a larger inner surface area, which can effectively increase the contact area between flue gas and catalyst to ensure sufficient chemical reaction and reduce the content of harmful gaseous substances as much as possible.

[0058] Based on any of the above embodiments, refer to Figures 1 to 6 The housing 1 is provided with a concentration adjustment structure, which is used to adjust the concentration of flue gas in the filter channel.

[0059] Specifically, the concentration adjustment structure allows outside air to be introduced into the filter channel and mixed with the flue gas inside, thereby reducing the concentration of flue gas in the filter channel and effectively diluting the flue gas. This can effectively reduce the respiratory tract irritation caused by flue gas, such as coughing, and is beneficial to human respiratory health.

[0060] Based on any of the above embodiments, the concentration adjustment structure includes a first vent 4 opened on the housing 1 and a second vent 5 disposed on the filter assembly or catalytic assembly 32 and connected to the filter channel. The second vent 5 can rotate with the filter assembly or catalytic assembly 32 so that the second vent 5 is arranged coaxially or misaligned with the first vent 4.

[0061] Specifically, the first vent 4 is formed on the housing 1, and the second vent 5 can be formed on the filter assembly or the catalyst assembly 32. In the example shown in this application, it is formed on the mounting member 321. During the rotation of the mounting member 321, the second vent 5 can also rotate with the mounting member 321, resulting in two arrangement forms for the second vent 5 and the first vent 4 (i.e., coaxial arrangement and staggered arrangement). In the coaxial arrangement, the first vent 4 and the second vent 5 completely overlap, and the air flow rate entering the filter channel from the outside is the largest. Based on this, by adjusting the position of the second vent 5, the overlapping area of ​​the second vent 5 and the first vent 4 is gradually adjusted, thereby adjusting the air flow rate entering the filter channel from the outside. Similarly, the first vent 4 can also be blocked by touching it with a finger, thereby adjusting the amount of air entering.

[0062] In this embodiment, it should be noted that a partition ring 6 is provided in the filter channel. The partition ring 6 is provided in the filter assembly and the catalyst assembly 32 so that the filter assembly and the catalyst assembly 32 are arranged at intervals in the filter channel.

[0063] Specifically, a hollow annular spacer 6 is fixedly provided in the middle of the housing 1 to separate the filter tank 2 and the catalyst tank 3. The spacer 6 has a good blocking and fixing effect, which makes it easy for the filter element 21 to be inserted into the designated position. At the same time, it can fix and limit the installation part 321, which facilitates the replacement of parts and plays a good fixing and limiting role.

[0064] Optionally, the housing 1, spacer ring 6, filter element 21, and mounting component 321 can all be made of transparent material, allowing users to easily observe the flow of flue gas inside the flue and the condition of the filter element 21 and catalytic component 32. Without disassembling the components, the degree of yellowing of the filter element 21 and catalytic component 32 can be directly observed to determine whether replacement is necessary. Furthermore, the transparent design also allows people to visually observe the flow rate and concentration of flue gas.

[0065] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0066] The present invention provides a detailed description of a dual-filter cigarette holder. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The descriptions of these embodiments are merely for the purpose of helping to understand the method and core ideas of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the present invention.

Claims

1. A double filter tip, comprising a housing (1) in which a filter flow channel is formed, characterized in that, The filter flow channel is sequentially provided with a filter assembly and a catalytic assembly (32), the filter assembly is used for physically filtering flue gas passing through the filter flow channel, and the catalytic assembly (32) is used for chemically catalyzing the flue gas passing through the filter flow channel. The catalytic assembly (32) comprises a mounting member (321) inserted into the other end of the filter flow channel, a plurality of catalytic channels (322) not communicated with each other are formed through the mounting member (321) in the flue gas flow direction of the filter flow channel, and an inner wall of each catalytic channel is coated with a catalyst.

2. A dual filter tip according to claim 1, characterised in that, The filter assembly comprises a filter core (21) inserted into one end of the filter flow channel, and a plurality of pore structures are formed through the filter core (21) in the flue gas flow direction of the filter flow channel.

3. A dual filter tip according to claim 2, characterised in that, The filter core (21) is acetate fiber cotton.

4. A dual filter tip according to claim 2, wherein An installation groove for installing a cigarette is formed between one side of the filter core (21) close to the end of the shell (1) and the inner wall of the filter flow channel.

5. A dual filter tip according to claim 1, wherein The catalytic channel (322) is a spiral channel.

6. A dual filter tip according to claim 1, wherein The catalytic channel (322) is a radial channel.

7. A dual filter tip according to any one of claims 1 to 6, wherein, The shell (1) is provided with a concentration adjusting structure for adjusting the concentration of flue gas in the filter flow channel.

8. A dual filter tip according to claim 7, characterised in that, The concentration adjusting structure comprises a first air hole (4) formed in the shell (1) and a second air hole (5) arranged on the filter assembly or the catalytic assembly (32) and communicated with the filter flow channel, and the second air hole (5) can rotate with the filter assembly or the catalytic assembly (32) to coaxially arrange or misarrange the second air hole (5) and the first air hole (4).

9. A dual filter tip according to any one of claims 1 to 6, wherein, The filter flow channel is provided with a partition ring (6), and the partition ring (6) is arranged between the filter assembly and the catalytic assembly (32) to space the filter assembly and the catalytic assembly (32) in the filter flow channel.

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