Multi-channel filter stick for heating cigarettes

Abstract

The utility model belongs to the technical field of novel tobaccos, and particularly relates to a multi-channel filter stick for heating cigarettes, which comprises a filter stick body, and a plurality of groups of spiral channels extending along the length direction of the filter stick body are arranged on the filter stick body. According to the filter stick, the spiral channel is formed in the filter stick, the flowing stroke of smoke in the filter stick body is increased, the temperature of the smoke is effectively reduced, the smoke can make full contact with the filter stick body in the spiral movement process, and therefore harmful substances are effectively adsorbed and filtered.

Description

TECHNICAL FIELD

[0001] The utility model belongs to novel tobacco technical field, concretely relates to a kind of heating cigarette multi-channel filter stick. BACKGROUND

[0002] Heating cigarette is heated by heating appliance to tobacco material, so that it releases smoke and forms aerosol, and the aerosol enters human oral cavity after filter stick. The heating temperature of heating appliance is usually higher than 250 DEG C, and the aerosol formed under this temperature condition usually has high temperature, which will cause obvious scalding feeling when directly entering consumer's oral cavity, affecting user experience.

[0003] In the existing heating cigarette filter stick, the flow direction of smoke is usually straight from the tobacco section to the lip section, and there are problems such as short residence time of smoke in filter, high temperature of smoke and non-obvious adsorption and filtration effect of harmful components. UTILITARY MODEL

[0004] The utility model aims at providing a kind of heating cigarette multi-channel filter stick, to solve the problem of short residence time of smoke in filter in prior art, which leads to high temperature of smoke.

[0005] To achieve the above technical purpose, the utility model adopts the following technical scheme:

[0006] A kind of heating cigarette multi-channel filter stick, including filter stick body, the filter stick body is provided with multiple groups of helical channels extending along the length direction of the filter stick body.

[0007] In the present application, helical channels are provided in the filter stick, which increases the flow distance of smoke in the filter stick body, effectively reduces the temperature of smoke, and the smoke can fully contact the filter stick body during helical motion, thereby effectively filtering harmful substances.

[0008] According to a preferred embodiment, a spoiler channel is provided at the filter stick body axis, one end of the spoiler channel is provided with a cover near the end portion along the airflow direction, the helical channels are arranged around the spoiler channel, and helical channel partition walls are formed between adjacent helical channels.

[0009] In the present application, part of the gas can enter the spoiler channel during the flow of airflow in the helical channel, and then enter other groups of helical channels through the spoiler channel, thereby disturbing the original airflow motion, increasing the contact time of airflow and filter stick body, further reducing the temperature of smoke and improving the filtration effect of harmful substances.

[0010] According to a preferred embodiment, the helical channels are provided with 2-6 groups.

[0011] In the present application, multiple groups of spiral channels are arranged to increase the flow time of the whole smoke in the filter rod body, so as to achieve the effect of temperature reduction.

[0012] According to a preferred embodiment, the cross section formed by the combination of the multiple groups of spiral channels is annular.

[0013] According to a preferred embodiment, the slope of the spiral channel is 30-60 degrees.

[0014] In the present application, the slope of the spiral channel is set to 30-60 degrees, which can increase the flow distance of the airflow while reducing the absorption of aerosol.

[0015] According to a preferred embodiment, the thickness of the spiral channel partition wall is smaller than the thickness of the filter rod body located at the annular outer wall.

[0016] In the present application, by reducing the thickness of the spiral channel partition wall, the volume of the spiral channel is increased, the probability of airflow passing through the spiral channel partition wall is improved, the filtration of aerosol is reduced, and the disturbance efficiency of the airflow is increased.

[0017] According to a preferred embodiment, the thickness of the outer wall of the filter rod body is 0.3-0.8 mm.

[0018] The utility model with the above technical scheme has the following advantages:

[0019] 1. In the present application, spiral channels are arranged in the filter rod to increase the flow distance of the smoke in the filter rod body, effectively reduce the temperature of the smoke, and the smoke can fully contact the filter rod body during spiral movement, thereby effectively adsorbing and filtering harmful substances.

[0020] 2. In the present application, during the flow of the airflow in the spiral channel, part of the gas can enter the turbulence channel, pass through the turbulence channel into other groups of spiral channels, and disturb the original airflow movement, thereby increasing the contact time of the airflow with the filter rod body, further reducing the temperature of the smoke, and improving the filtration effect of harmful substances. BRIEF DESCRIPTION OF DRAWINGS

[0021] The present utility model can be further illustrated by the non-limiting embodiments shown in the drawings;

[0022] Fig. 1 FIG. 1 is a structural schematic view of the whole heating cigarette multi-channel filter rod of the present utility model;

[0023] Fig. 2 FIG. 2 is a sectional view of the heating cigarette multi-channel filter rod of the present utility model in use.

[0024] The main element symbols are explained as follows:

[0025] 10. Filter rod body; 11. Spiral channel; 12. turbulent flow channel; 13. Cover; 14. Spiral channel dividing wall;

[0026] 20. Filter tip. DETAILED DESCRIPTION

[0027] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that similar or identical parts in the drawings or in the specification are numbered the same. Implementations not shown or described in the drawings are forms known to those skilled in the art. In addition, directional terms such as "upper," "lower," "top," "bottom," "left," "right," "front," and "back" mentioned in the embodiments are merely references to the directions in the drawings and are not intended to limit the scope of protection of the present invention.

[0028] like Figs. 1-2 As shown, the present invention discloses a multi-channel filter plug for heated cigarettes, comprising a filter plug body 10. The filter plug body 10 is provided with multiple sets of spiral channels 11 extending along the length of the filter plug body 10. The spiral channels 11 increase the distance smoke flows within the filter plug body 10, thereby reducing the temperature of the smoke and effectively filtering out harmful substances in the smoke.

[0029] Optionally, a turbulence channel 12 is provided at the axis of the filter rod body 10. A cover 13 is provided near the end of the turbulence channel 12 at one end along the airflow direction. The spiral channel 11 surrounds the circumference of the turbulence channel 12. A spiral channel dividing wall 14 is formed between adjacent spiral channels 11. The spiral channel dividing wall 14 can isolate two adjacent spiral channels 11. During the flow of air in the spiral channel 11, part of the gas can enter the turbulence channel 12, while part of the gas can pass through the spiral channel dividing wall 14 and move to other spiral channels, and part of the gas can enter the spiral channel 11 from the circumference of the filter rod body 10, thereby disturbing the airflow moving along the spiral channel 11, increasing the contact time between the airflow and the filter rod body 10, further reducing the temperature of the smoke and improving the filtering effect of harmful substances.

[0030] In the present application, three groups of spiral channels 11 are provided. In actual application, the spiral channels 11 can also be provided in 2 to 6 groups. The cross-section formed by the combination of all the spiral channels 11 is annular. In the present application, in order to increase the space occupied by the spiral channels 11, the spiral channels are not provided as circular channels. For ease of understanding, it can be considered that in the present application, the filter rod body 10 is located in a hollow circular ring between the side wall and the flow-disturbing channel 12, and a plurality of spiral blades are provided, and the spiral channels 11 are surrounded by adjacent blades. The spiral blades here are the spiral channel dividing walls in the present application.

[0031] In the present application, the slope of the spiral channel 11 is preferably 30-60 degrees. In the present application, by setting the slope of the spiral channel 11 to 30-60 degrees, the flow path of the airflow can be increased while reducing the absorption of aerosol.

[0032] The thickness of the spiral channel partition wall is the thickness of the outer wall of the filter rod body 10. In the present application, by reducing the thickness of the spiral channel partition wall, the area and number of the ventilation cross section of the spiral channel 11 are increased, the probability of airflow passing through the spiral channel partition wall is increased, the filtration of aerosol is reduced, and the disturbance efficiency of the airflow is increased.

[0033] In the present application, the thickness of the outer wall of the filter rod body 10 is preferably 0.3-0.8 mm.

[0034] The above has introduced in detail the heating cigarette multi-channel filter rod provided by the present application. The description of the specific embodiments is only used to help understand the method of the present application and its core idea. It should be pointed out that for ordinary skilled persons in the technical field, without departing from the principle of the present application, the present application can be improved and modified in several ways, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A multi-channel filter rod for heating cigarettes, characterized in that: The invention comprises a filter rod body (10), wherein the filter rod body (10) is provided with a plurality of spiral channels (11) extending along the length direction of the filter rod body (10); a flow disturbance channel (12) is provided at the axis of the filter rod body (10); a cover (13) is provided near the end of one end of the flow disturbance channel (12) along the airflow direction; the spiral channels (11) are arranged around the circumference of the flow disturbance channel (12), and spiral channel partition walls (14) are formed between adjacent spiral channels (11).

2. The multi-channel filter rod for heated cigarettes according to claim 1, characterized in that: The spiral channels (11) are provided in 2 to 6 groups.

3. The multi-channel filter rod for heated cigarettes according to claim 1, characterized in that: The cross section formed by the combination of the multiple groups of spiral channels (11) is annular.

4. The multi-channel filter rod for heated cigarettes according to claim 1, characterized in that: The slope of the spiral channel (11) is 30 to 60 degrees.

5. The multi-channel filter rod for heated cigarettes according to claim 3, characterized in that: The thickness of the spiral channel dividing wall is smaller than the thickness of the outer wall of the filter rod body (10).

6. The multi-channel filter rod for heated cigarettes according to claim 5, characterized in that: The thickness of the outer wall of the filter rod body (10) is 0.3-0.8 mm.

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