Fireproof cigarette based on smoldering cold extinguishing principle

Abstract

The application discloses a fireproof cigarette based on smoldering cold extinguishing principle, which comprises a tobacco part, a filter part arranged at one end of the tobacco part, a cold extinguishing cigarette stopper arranged in the tobacco part and in contact with or connected with the filter part, and the volume of the cold extinguishing cigarette stopper gradually decreases in the direction from the filter part to the tobacco part. In the application, the cold extinguishing cigarette stopper is arranged at one end of the tobacco part close to the filter part, so that when the cigarette is discarded and the human oxygen supply is stopped, the cold extinguishing cigarette stopper can provide additional cooling, so that the space size of the smoldering combustion of the cigarette at the position is lower than the minimum size required for maintaining the combustion, and the combustion surface of the cigarette just enters the area where the cold extinguishing cigarette stopper is arranged and is cooled and extinguished, thereby reducing the risk of fire induced by discarding the cigarette.

Description

Technical Field

[0001] This invention relates to the field of cigarette technology, and in particular to a fireproof cigarette based on the principle of smoldering and cold extinguishing. Background Technology

[0002] In real life, people often discard unburnt cigarette butts directly. However, the structure of a cigarette means that unburnt cigarette butts are still flammable, making them a significant cause of many forest and residential fires. Discarded cigarette butts pose a high fire hazard.

[0003] Therefore, existing technologies still need improvement and development. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a fireproof cigarette based on the principle of smoldering and cold extinguishing, in order to reduce the fire hazard of cigarettes after they are discarded, in view of the above-mentioned defects of the prior art.

[0005] The technical solution adopted by this invention to solve the technical problem is as follows:

[0006] A fire-resistant cigarette based on the principle of smoldering and cold extinguishing, comprising:

[0007] Tobacco Department;

[0008] A filter tip is disposed at one end of the tobacco portion;

[0009] A cold-extinguishing smoke stopper is disposed within the tobacco section and is in contact with or connected to the filter section; the volume of the cold-extinguishing smoke stopper gradually decreases along the direction from the filter section to the tobacco section.

[0010] The fireproof cigarette based on the principle of smoldering and cold extinguishing, wherein the cold extinguishing smoke stopper is made of the same material as the filter.

[0011] The fireproof cigarette based on the principle of smoldering and cold extinguishing, wherein the cold extinguishing smoke stopper and the filter part are integrally formed.

[0012] The fireproof cigarette based on the principle of smoldering and cold extinguishing, wherein the cold extinguishing smoke stopper is a conical cold extinguishing smoke stopper.

[0013] The fireproof cigarette based on the principle of smoldering and cold extinguishing, wherein the cold extinguishing smoke stopper is a convex conical cold extinguishing smoke stopper.

[0014] The fireproof cigarette based on the principle of smoldering and cold extinguishing, wherein the cold extinguishing smoke stopper is a concave conical cold extinguishing smoke stopper.

[0015] The fireproof cigarette based on the principle of smoldering and cold extinguishing, wherein the maximum diameter of the cold extinguishing smoke stopper is equal to the diameter of the filter tip.

[0016] The fireproof cigarette based on the principle of smoldering and cold extinguishing, wherein, along the axial direction of the filter portion, the length of the cold extinguishing smoke stopper is less than the length of the filter portion.

[0017] The fireproof cigarette based on the principle of smoldering and cold extinguishing, wherein, along the axial direction of the filter portion, the length of the cold extinguishing smoke stopper is less than 1 / 3 of the total length of the tobacco portion and the filter portion.

[0018] Beneficial effects: In this application, a cold-extinguishing smoke stopper is added to the end of the tobacco section near the filter section. When the cigarette is discarded and the artificial oxygen supply is stopped, the cold-extinguishing smoke stopper can gradually enhance the heat dissipation of the wall surface through the special structure of the wall surface, and make the space size of the smoldering combustion of the cigarette at that location lower than the minimum size necessary to maintain its combustion. As a result, the burning surface of the cigarette tends to cool and extinguish as soon as it enters the area where the cold-extinguishing smoke stopper is located, thereby reducing the risk of fire caused by discarded cigarettes. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the fireproof cigarette based on the smoldering and cold extinguishing principle described in Embodiment 1 of this application;

[0020] Figure 2 This is a schematic diagram of the structure of the fireproof cigarette based on the smoldering and cold extinguishing principle described in Embodiment 2 of this application;

[0021] Figure 3 This is a schematic diagram of the structure of the fireproof cigarette based on the smoldering and cold extinguishing principle described in Embodiment 3 of this application;

[0022] Figure 4 This is a diagram illustrating the extinguishing principle of the fireproof cigarette based on the smoldering and cold extinguishing principle described in this application;

[0023] Figure 5 This is a partial structural diagram of the fireproof cigarette based on the smoldering and cold extinguishing principle described in this application during normal combustion;

[0024] Figure 6 This is a partial structural diagram of the fireproof cigarettes that are discarded in advance based on the principle of smoldering and cold extinguishing, as described in this application. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this invention clearer and more explicit, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0026] This invention provides a fireproof cigarette based on the principle of smoldering and cold extinguishing, such as... Figure 1 , Figure 2 and Figure 3As shown, the fireproof cigarette based on the principle of smoldering and cold extinguishing includes a tobacco part 1, a filter part 2, and a cold extinguishing smoke stopper 3; the filter part 2 is disposed at one end of the tobacco part 1; the cold extinguishing smoke stopper 3 is disposed inside the tobacco part 1 and is in contact with or connected to the filter part 2.

[0027] Specifically, the filter tip 2 is coaxially arranged with the tobacco part 1, and the filter tip 2 is located at one end of the axial direction of the tobacco part 1; the cold-extinguishing smoke stopper 3 is located inside the tobacco part 1 and at one end of the tobacco part 1 near the filter tip 2. The cold-extinguishing smoke stopper 3 is in contact with or connected to the filter tip 2, thereby connecting the cold-extinguishing smoke stopper 3 and the filter tip 2 to each other.

[0028] The cold-extinguishing smoke stopper 3 described in this application is connected to the filter part 2, extending the length of the cold-extinguishing smoke stopper section. This reduces the amount of tobacco in the tobacco part 1 when the cigarette burns to the cold-extinguishing smoke stopper 3, thus reducing the total heat generated during combustion. Furthermore, the special structure of the wall surface gradually enhances heat dissipation. Ultimately, when there is no artificial oxygen supply, as the cigarette burns, the heat generated on the smoldering front of the cigarette cannot overcome the heat dissipation from the environment, and the smoldering will be extinguished, increasing the probability that the cigarette will be extinguished when it is discarded (no longer subject to artificial oxygen supply).

[0029] Because the combustion of cigarettes is essentially smoldering (slow, flameless combustion), and the spread of smoldering requires fuel to exceed a certain size (i.e., the smoldering extinguishing size). When the fuel size at the location of the smoldering is too small, combustion can be maintained by increasing oxygen supply (i.e., the act of smoking). The smoldering extinguishing size of a cigarette decreases with increasing oxygen supply and increases with increasing cooling intensity of the cigarette wall; therefore, during normal smoking, the act of smoking increases the oxygen supply for combustion, reducing the extinguishing size; when the cigarette is discarded, there is no longer any artificial oxygen supply. Figure 4 As shown in the diagram, area A represents the burnt-out zone, area B represents the smoldering front, and area C represents the unburned zone. As the smoldering front of the tobacco section 1 gradually approaches the cold-extinguishing smoke stopper 3, the actual amount of tobacco that can be burned decreases, resulting in a reduction in the total heat generated by the cigarette system. Simultaneously, the cooling-avoidance reaction of the cold-extinguishing smoke stopper 3 gradually intensifies, increasing the total heat dissipation of the cigarette system (e.g., ...). Figure 4 As shown by the middle arrow, the arrow indicates the direction of heat dissipation of the smoldering front towards the environment outside the cigarette and the direction of heat dissipation of the smoldering front towards the cold-extinguishing smoke stopper 3. When the total heat generated cannot overcome the total heat dissipation, the combustion of the cigarette is extinguished by cold-extinguishing.

[0030] Based on this, the present application adds the cold-extinguishing smoke stopper 3 to one end of the tobacco part 1 near the filter part 2, so that when the cigarette is discarded and the artificial oxygen supply is stopped, the cold-extinguishing smoke stopper 3 can provide additional cooling, thereby increasing the size of the cold-extinguishing device. This causes the burning surface of the cigarette to tend to cool and extinguish as soon as it enters the area where the cold-extinguishing smoke stopper 3 is located, thereby reducing the risk of fire caused by discarded cigarettes.

[0031] Furthermore, the volume of the cold-extinguishing smoke stopper 3 described in this application gradually decreases along the direction from the filter portion 2 to the tobacco portion 1, so that although the tobacco component gradually decreases in the axial direction from the tobacco portion 1 to the filter portion 2, it still exists. Therefore, even if the tobacco content around the cold-extinguishing smoke stopper 3 gradually decreases, as long as there is artificial oxygen supply, there will still be tobacco near the filter portion 2, which can maintain the combustion of the cigarette, make the cigarette burn as completely as possible, avoid the cigarette extinguishing prematurely during normal smoking, and ensure that the cigarette will not automatically extinguish during normal smoking. The cigarette will only automatically extinguish when the unburned cigarette is discarded in advance.

[0032] like Figure 5 As shown in the diagram, A1 represents the burnout zone, B1 represents the combustion reaction surface, and C1 represents the unburned zone. The arrows indicate the heat dissipation directions from the combustion reaction surface towards the external environment of the cigarette and the cold-extinguishing smoke stopper 3, respectively. It can be seen that during normal smoking, due to the presence of artificial oxygen supply, the unburned zone is very small, allowing the cigarette to burn as completely as possible. Figure 6 As shown in the figure, A2 represents the burnout zone, B2 represents the combustion reaction surface, and C2 represents the unburned zone. The arrows indicate the heat dissipation directions of the combustion reaction surface towards the external environment of the cigarette and the cold-extinguishing smoke stopper 3, respectively. It can be seen that when an unburned cigarette is discarded in advance, due to the cessation of artificial oxygen supply, compared with normal smoking: the burnout zone area is smaller, the combustion reaction surface is closer to the smaller end of the cold-extinguishing smoke stopper 3, the unburned zone area is larger, and the cigarette can automatically extinguish itself earlier.

[0033] In one embodiment of this application, the cold-extinguishing smoke stopper 3 and the filter part 2 are made of the same material, so that there is no need to add additional fire-retardant materials for cigarette paper and tobacco, and the fire protection requirements can be met simply through appropriate design; at the same time, since no new ingredients are added, the cigarette designed in this way will not change the original smoking taste of cigarettes; it also avoids the increase in cigarette manufacturing costs, and the requirements can be met simply by designing a special shape for the filter, and the manufacturing process is simple.

[0034] In one embodiment of this application, the cold-extinguishing smoke stopper and the filter part are integrally formed; that is, the cold-extinguishing smoke stopper and the filter part are an integral structure, and a part of the integral structure extends into the tobacco part.

[0035] Example 1 in this application

[0036] like Figure 1 As shown, the cold-extinguishing smoke stopper 3 is a conical cold-extinguishing smoke stopper, that is, the diameter of the end of the cold-extinguishing smoke stopper 3 near the filter part 2 is large, and the diameter of the end of the cold-extinguishing smoke stopper 3 away from the filter part 2 is small. In addition, along the axial direction of the fireproof cigarette based on the smoldering cold-extinguishing principle, the following conditions are simultaneously met: the cross-section of the cold-extinguishing smoke stopper 3 is an isosceles triangle, and the connecting surface of the cold-extinguishing smoke stopper 3 and the tobacco part 1 is a plane. This ensures that the volume of the cold-extinguishing smoke stopper 3 gradually decreases from the direction near the filter part 2 to the direction away from the filter part 2, and also facilitates the processing of the cold-extinguishing smoke stopper 3 within the tobacco part 1, thus reducing the processing technology of the cold-extinguishing smoke stopper 3.

[0037] Example 2 in this application

[0038] like Figure 2 As shown, the cold-extinguishing smoke stopper 3 is a convex conical cold-extinguishing smoke stopper, that is, the diameter of the end of the cold-extinguishing smoke stopper 3 near the filter part 2 is large, and the diameter of the cold-extinguishing smoke stopper 3 away from the filter part 2 is small. In addition, along the axial direction of the fireproof cigarette based on the smoldering cold-extinguishing principle, the following are simultaneously satisfied: the cross-section of the cold-extinguishing smoke stopper 3 is an axisymmetric figure symmetrical about the central axis, and the connecting surface of the cold-extinguishing smoke stopper 3 and the tobacco part 1 is a convex arc surface structure.

[0039] Compared to Embodiment 1 in this application, the structure of the cold-extinguishing smoke stopper 3 in this embodiment makes the volume of the tobacco portion 1 decrease rapidly when the cigarette burns close to the area of ​​the cold-extinguishing smoke stopper 3, and the space available for the cigarette to burn will shrink rapidly, so that the speed at which the cigarette automatically extinguishes when the unburned cigarette is discarded in advance is further improved.

[0040] Example 3 of this application

[0041] like Figure 3 As shown, the cold-extinguishing smoke stopper 3 is a concave conical cold-extinguishing smoke stopper, that is, the diameter of the end of the cold-extinguishing smoke stopper 3 near the filter part 2 is large, and the diameter of the cold-extinguishing smoke stopper 3 away from the filter part 2 is small. In addition, along the axial direction of the fireproof cigarette based on the smoldering cold-extinguishing principle, the following are simultaneously satisfied: the cross section of the cold-extinguishing smoke stopper 3 is an axisymmetric figure symmetrical about the central axis, and the connecting surface of the cold-extinguishing smoke stopper 3 and the tobacco part 1 is a concave arc surface structure.

[0042] Compared to Embodiment 1 in this application, the structure of the cold-extinguishing smoke stopper 3 in this embodiment reduces the rate at which the volume of the tobacco portion 1 shrinks when the cigarette burns close to the area of ​​the cold-extinguishing smoke stopper 3, and reduces the rate at which the space available for cigarette combustion shrinks, thus slowing down the rate at which the cigarette automatically extinguishes when an unburned cigarette is discarded prematurely.

[0043] In one embodiment of this application, the maximum diameter of the cold-extinguishing smoke stopper 3 is equal to the diameter of the filter part 2, that is, there is no tobacco material (the size of the tobacco material is 0) at the junction of the cold-extinguishing smoke stopper 3 and the filter part 2. This ensures that when the cigarette is discarded in advance, it will be extinguished before it burns to the filter part 2, so as to achieve the purpose of reducing the risk of fire caused by discarded cigarettes in this application.

[0044] It should be noted that the length of the cold-extinguishing smoke stopper 3 described in this application must meet the following requirements: it should be able to produce the effect of early cold-extinguishing, but have as little adverse effect on normal smoking as possible.

[0045] In one embodiment of this application, the length of the cold-extinguishing smoke stopper 3 along the axial direction of the filter portion 2 is less than the length of the filter portion 2, so as to reduce the volume occupied by the cold-extinguishing smoke stopper 3 on the cigarette, thereby reducing the adverse effects of the cold-extinguishing smoke stopper 3 on normal smoking.

[0046] In another embodiment of this application, along the axial direction of the filter portion 2, the length of the cold-extinguishing smoke stopper 3 is less than 1 / 3 of the total length of the tobacco portion 1 and the filter portion 2, so as to reduce the volume occupied by the cold-extinguishing smoke stopper 3 on the cigarette, thereby reducing the adverse effects of the cold-extinguishing smoke stopper 3 on normal smoking.

[0047] In another embodiment of this application, the included angle formed by the small diameter end of the cold-extinguishing smoke stopper 3 is in the range of 15° to 150°, so as to reduce the volume of the cigarette occupied by the cold-extinguishing smoke stopper 3, thereby reducing the adverse effect of the cold-extinguishing smoke stopper 3 on normal smoking.

[0048] In summary, this invention provides a fireproof cigarette based on the principle of smoldering and extinguishing, comprising: a tobacco section; a filter section disposed at one end of the tobacco section; and a extinguishing device disposed within the tobacco section and in contact with or connected to the filter section; the volume of the extinguishing device gradually decreases along the direction from the filter section to the tobacco section. In this application, the extinguishing device is added to the end of the tobacco section near the filter section, so that when the cigarette is discarded and artificial oxygen supply is stopped, the extinguishing device can gradually enhance heat dissipation through a special structure on its wall, and reduce the space for smoldering combustion of the cigarette to be lower than the minimum size necessary to maintain combustion. This causes the burning surface of the cigarette to cool and extinguish as soon as it enters the area of ​​the extinguishing device, thereby reducing the risk of fire caused by discarded cigarettes.

[0049] It should be understood that the application of the present invention is not limited to the examples above. Those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A fire-resistant cigarette based on the principle of smoldering and cold extinguishing, characterized in that, It includes: Tobacco Department; A filter tip is disposed at one end of the tobacco portion; A cold-extinguishing smoke stopper is disposed within the tobacco section and contacts or is connected to the filter section; the volume of the cold-extinguishing smoke stopper gradually decreases along the direction from the filter section to the tobacco section; The cold-extinguishing smoke stopper is conical, convex conical, or concave conical, and the maximum diameter of the cold-extinguishing smoke stopper is equal to the diameter of the filter tip.

2. The fire-resistant cigarette based on the smoldering and cold-extinguishing principle according to claim 1, characterized in that, The cold-extinguishing smoke stopper is made of the same material as the filter tip.

3. The fireproof cigarette based on the smoldering and cold-extinguishing principle according to claim 1, characterized in that, The cold-extinguishing smoke stopper and the filter part are integrally formed.

4. The fireproof cigarette based on the smoldering and cold-extinguishing principle according to claim 1, characterized in that, Along the axial direction of the filter tip, the length of the cold-extinguishing smoke stopper is less than the length of the filter tip.

5. The fireproof cigarette based on the smoldering and cold-extinguishing principle according to claim 1, characterized in that, Along the axial direction of the filter portion, the length of the cold-extinguishing smoke stopper is less than 1 / 3 of the total length of the tobacco portion and the filter portion.

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