Flue structure capable of preventing cigarette ash from leaking
By introducing a double-layer collection tube and mobile seal in the flue structure, the problem of soot ash pollution during smoking is solved, effective collection of soot ash and environmental protection is achieved, and users' smoking experience is improved.
Patent Information
- Application Number
- CN202421440368.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-21
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-06-21
AI Technical Summary
The soot generated during smoking is prone to environmental pollution, and the prior art is difficult to effectively prevent the leakage and collection of soot.
A flue structure that is leak-proof soot ash is designed, including a housing, a flue and a leak-proof assembly. The leak-proof assembly consists of a double-layer collection tube and a mobile seal. The double-layer collection tube communicates with the outside air through a breathable hole, provides oxygen, and collects the soot in the sealing chamber of the inner collection tube; the mobile seal controls the position of the sealing slide through transmission to realize the opening and sealing of the flue.
It effectively prevents the leakage of soot, maintains the sealing state of the flue, and ensures that the soot and tar are all collected in the soot collection chamber. Users only need to clean the double-layer collection tube, which solves the problem of soot pollution and improves the user experience.
Smart Images

Figure CN223040917U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of smoking devices, in particular to a smoke duct structure which prevents cigarette ash from leaking. Background Art
[0002] Cigarettes are a type of tobacco product. During the smoking process, tobacco burning will produce a large amount of ash. The falling and flying of ash pollutes the environment and becomes one of the pollution sources for home, car and public environmental sanitation. In order to avoid the scattered ash polluting the environment, an ash-proof flue structure is urgently needed to solve the problem that ash easily causes environmental pollution. Utility Model Content
[0003] In view of the deficiencies of the prior art, the utility model proposes a smoke duct structure that prevents smoke ash from leaking, which can solve the problem of collecting smoke ash during the smoking process and prevent environmental pollution caused by smoke ash leakage.
[0004] The technical solution of the utility model is achieved in this way:
[0005] A smoke duct structure for preventing smoke ash from leaking, comprising a shell, a smoke duct formed in the shell, and a leak-proof component for preventing smoke ash from leaking in the smoke duct, the leak-proof component comprising a double-layer collecting pipe and a movable sealing member, and a first opening and a second opening communicating with the smoke duct are formed at the top and the bottom of the shell;
[0006] The double-layer collecting tube comprises an outer collecting tube detachably arranged in the second opening and an inner collecting tube arranged in the outer collecting tube by interference fit, a first air vent for connecting the double-layer collecting tube to the outside air is arranged at the bottom of the outer collecting tube, a second air vent for connecting the double-layer collecting tube to the flue is arranged on the side wall of the inner collecting tube, and the bottom of the inner collecting tube is a ash collecting bin formed by a sealed tube wall;
[0007] The movable seal includes a transmission part and a sealing slide connected to the transmission part. The side wall of the shell is provided with a transmission window for installing the transmission part. The transmission part controls the sealing slide to move between the first opening and the flue through transmission to change the flue to an open state or a sealed state.
[0008] As a preferred embodiment, the transmission part includes a rotating shaft and a shifting gear, wherein the rotating shaft is vertically arranged in the transmission window, and the shifting gear is sleeved on the rotating shaft and extends the latching teeth out of the transmission window.
[0009] As a preferred implementation manner, the sealing slide is connected to the shifting gear and is arranged in a gap between the first opening and the flue.
[0010] As a preferred embodiment, the movable seal further includes a first limiting magnet and a second limiting magnet, both of which are disposed at the bottom of the sealing slide;
[0011] The first limiting magnet adsorbs the sealing slide and limits it directly below the first opening, so as to keep the flue in a sealed state;
[0012] The second limiting magnet adsorbs the sealing slide away from the first opening, so as to keep the flue in an open state.
[0013] As a preferred embodiment, a pull ring for taking out the double-layer collecting pipe from the flue is further disposed at the bottom of the outer collecting pipe.
[0014] As a preferred embodiment, the cross-sectional diameter of the outer collecting pipe is not less than the cross-sectional diameter of the inner collecting pipe.
[0015] As a preferred embodiment, the cross-sectional diameter of the outer collecting pipe is not greater than the cross-sectional diameter of the flue.
[0016] As a preferred embodiment, the arrangement modes of the first ventilation holes and the second ventilation holes include uniform arrangement, array arrangement and irregular arrangement.
[0017] As a preferred embodiment, a heat insulation layer is provided between the outer wall of the housing and the outer wall of the flue, and the heat insulation material of the heat insulation layer includes porous materials, heat-reflecting materials and vacuum materials.
[0018] Compared with the prior art, the present utility model has the following advantages:
[0019] The present utility model seals the flue where cigarettes are burned through the double-layer collecting pipe and the movable seal disposed in the flue, preventing the soot generated by cigarette burning from leaking out and polluting the external environment. The double-layer collecting pipe can connect the flue with the external air, and can continuously provide oxygen for cigarette burning. At the same time, the double-layer design can effectively retain all the soot and even tar generated by cigarette burning in the soot collection bin. When the user cleans, only the double-layer collecting pipe needs to be taken out for cleaning, solving the problem that the soot generated by smoking is easy to cause pollution and improving the smoking experience of the user. Description of the Drawings
[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0021] Figure 1 External structure schematic diagram of a flue structure for preventing ash leakage in the present invention;
[0022] Figure 2 For Figure 1 Internal structure schematic diagram;
[0023] Figure 3 For Figure 2 Enlarged schematic diagram at position A in
[0024] Figure 4 For Figure 2 Enlarged schematic diagram at position B in
[0025] Figure 5 For Figure 1 Internal structure schematic diagram from another perspective;
[0026] Figure 6 For Figure 5 Internal structure schematic diagram of removing part of the movable seal in
[0027] Figure 7 Structure schematic diagram of a double-layer collection pipe in a flue structure for preventing ash leakage in the present invention;
[0028] Figure 8 Structure schematic diagram of an inner-layer collection pipe in a flue structure for preventing ash leakage in the present invention;
[0029] Figure 9 Structure schematic diagram of an outer-layer collection pipe in a flue structure for preventing ash leakage in the present invention.
[0030] Reference numerals in the drawings:
[0031] 1 - Housing, 11 - Transmission window;
[0032] 2 - Flue, 21 - First opening, 22 - Second opening;
[0033] 3 - Heat insulation layer;
[0034] 4 - Double-layer collection pipe, 41 - Outer-layer collection pipe, 411 - First ventilation hole, 42 - Inner-layer collection pipe, 421 - Second ventilation hole, 422 - Ash collection bin;
[0035] 5-movable sealing member, 51-transmission part, 511-rotating shaft, 512-shifting gear, 52-sealing sliding plate, 53-first limiting magnet, 54-second limiting magnet. DETAILED DESCRIPTION
[0036] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0037] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present utility model. In addition, the terms "first", "second", "third", "fourth", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0039] See also Figures 1 to 9 The utility model discloses a smoke ash leakage-proof flue structure, comprising a shell 1, a smoke duct 2 formed in the shell 1, and a leak-proof component for preventing smoke ash leakage in the smoke duct 2, wherein the leak-proof component comprises a double-layer collecting pipe 4 and a movable sealing member 5, and the top and bottom of the shell 1 are both provided with a first opening 21 and a second opening 22 connected to the smoke duct 2;
[0040] The double-layer collecting tube 4 comprises an outer collecting tube 41 detachably arranged in the second opening 22 and an inner collecting tube 42 arranged in the outer collecting tube 41 by interference fit, the bottom of the outer collecting tube 41 is provided with a first air vent 411 for connecting the double-layer collecting tube 4 to the outside air, the side wall of the inner collecting tube 42 is provided with a second air vent 421 for connecting the double-layer collecting tube 4 to the flue 2, and the bottom of the inner collecting tube 42 is a smoke ash collecting bin 422 formed by a sealed tube wall;
[0041] The movable seal 5 includes a transmission part 51 and a sealing slide 52 connected to the transmission part 51. The side wall of the shell 1 is provided with a transmission window 11 for installing the transmission part 51. The transmission part 51 controls the sealing slide 52 to move between the first opening 21 and the flue 2 through transmission, so that the flue 2 changes to an open state or a sealed state.
[0042] As a preferred embodiment, the transmission part 51 includes a rotating shaft 511 and a shifting gear 512 . The rotating shaft 511 is vertically arranged in the transmission window 11 . The shifting gear 512 is sleeved on the rotating shaft 511 and extends the latching teeth out of the transmission window 11 .
[0043] As a preferred implementation, the sealing slide 52 is connected to the shifting gear 512 and is disposed in the gap between the first opening 21 and the flue 2 .
[0044] As a preferred embodiment, the movable seal 5 further includes a first limiting magnet 53 and a second limiting magnet 54, and the first limiting magnet 53 and the second limiting magnet 54 are both arranged at the bottom of the sealing slide 52;
[0045] The first limiting magnet 53 attracts the sealing slide 52 to be located directly below the first opening 21, so that the flue 2 remains sealed.
[0046] The second limiting magnet 54 attracts the sealing slide 52 away from the first opening 21 to keep the flue 2 open.
[0047] As a preferred embodiment, a pull ring for taking out the double-layer collecting tube 4 from the flue 2 is further provided at the bottom of the outer collecting tube 41 .
[0048] As a preferred implementation, the cross-sectional diameter of the outer collecting tube 41 is not less than the cross-sectional diameter of the inner collecting tube 42 .
[0049] As a preferred implementation, the cross-sectional diameter of the outer collecting pipe 41 is not greater than the cross-sectional diameter of the flue 2 .
[0050] As a preferred embodiment, the arrangement modes of the first ventilation holes 411 and the second ventilation holes 421 include uniform arrangement, array arrangement and irregular arrangement.
[0051] As a preferred embodiment, a heat insulation layer 3 is provided between the outer wall of the housing 1 and the outer wall of the flue 2, and the heat insulation material of the heat insulation layer 3 includes porous materials, heat reflection materials and vacuum materials.
[0052] The working principle of the present utility model is as follows: when smoking is required, the transmission part 51 is toggled to move the sealing slide 52 to change the flue 2 in a sealed state to an open state. A cigarette is inserted into the flue 2 from the first opening 21 and is limited by the elastic rubber ring 3 to prevent the cigarette from loosening. Further, when the cigarette burns in the flue, the ash falling from the position of the cigarette butt will fall into and be retained in the ash collection bin 422, and the oxygen required for the cigarette to burn will enter the flue 2 from the outside in sequence through the first ventilation holes 411 and the second ventilation holes 421. After the smoking action is completed, the transmission part 51 is toggled to move the sealing slide 52 to change the flue 2 to a sealed state to prevent the ash from leaking out from the first opening 21. After the user pulls the pull ring at the bottom of the housing 1 to take out the double-layer collection tube 4 for cleaning and then reinstalls the double-layer collection tube 4 into the flue, the ash will always remain in the flue 2 throughout the process, avoiding pollution to the external environment, and being convenient to clean, which can improve the user experience.
[0053] The present utility model seals the flue for cigarette burning through the double-layer collection tube and the movable seal arranged in the flue to prevent the ash generated by cigarette burning from leaking out and polluting the external environment. The double-layer collection tube can connect the flue with the external air, and can continuously provide oxygen for cigarette burning. At the same time, the double-layer design can effectively retain all the ash and even tar generated by cigarette burning in the ash collection bin. When cleaning, the user only needs to take out the double-layer collection tube for cleaning, solving the problem that the ash generated by smoking is easy to cause pollution and being able to improve the smoking experience of the user.
[0054] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.
Claims
1. A smoke ash leakage-proof flue structure, characterized in that: The invention comprises a shell (1), a flue (2) formed in the shell (1), and a leak-proof component for preventing ash from leaking out of the flue (2), the leak-proof component comprising a double-layer collecting pipe (4) and a movable sealing member (5), and the top and bottom of the shell (1) are both provided with a first opening (21) and a second opening (22) connected to the flue (2); The double-layer collecting tube (4) comprises an outer collecting tube (41) detachably arranged in the second opening (22) and an inner collecting tube (42) arranged in the outer collecting tube (41) by interference fit, the bottom of the outer collecting tube (41) is provided with a first air vent (411) for connecting the double-layer collecting tube (4) to the outside air, the side wall of the inner collecting tube (42) is provided with a second air vent (421) for connecting the double-layer collecting tube (4) to the flue (2), and the bottom of the inner collecting tube (42) is a soot collecting bin (422) formed by a sealed tube wall; The movable sealing member (5) comprises a transmission part (51) and a sealing slide (52) connected to the transmission part (51); a transmission window (11) for mounting the transmission part (51) is provided on a side wall of the housing (1); the transmission part (51) controls the sealing slide (52) to move between the first opening (21) and the flue (2) through transmission, so that the flue (2) changes to an open state or a sealed state.
2. The smoke duct structure for preventing ash leakage according to claim 1, characterized in that: The transmission part (51) comprises a rotating shaft (511) and a shifting gear (512). The rotating shaft (511) is vertically arranged in the transmission window (11), and the shifting gear (512) is sleeved on the rotating shaft (511) and extends the latching teeth out of the transmission window (11).
3. The smoke duct structure for preventing ash leakage according to claim 2, characterized in that: The sealing slide (52) is connected to the shifting gear (512) and is arranged in the gap between the first opening (21) and the flue (2).
4. The smoke duct structure for preventing ash leakage according to claim 1, characterized in that: The movable sealing element (5) further comprises a first limiting magnet (53) and a second limiting magnet (54), wherein the first limiting magnet (53) and the second limiting magnet (54) are both arranged at the bottom of the sealing slide (52); The first limiting magnet (53) absorbs the sealing slide (52) and limits the position to be just below the first opening (21), so that the flue (2) remains in a sealed state; The second limiting magnet (54) attracts the sealing slide (52) away from the first opening (21), so that the flue (2) remains in an open state.
5. The smoke duct structure for preventing ash leakage according to claim 1, characterized in that: The bottom of the outer collecting tube (41) is also provided with a pull ring for taking out the double-layer collecting tube (4) from the flue (2).
6. The smoke duct structure for preventing ash leakage according to claim 1, characterized in that: The cross-sectional diameter of the outer collecting tube (41) is not less than the cross-sectional diameter of the inner collecting tube (42).
7. The smoke duct structure for preventing ash leakage according to claim 1, characterized in that: The cross-sectional diameter of the outer collecting pipe (41) is not greater than the cross-sectional diameter of the flue (2).
8. The smoke duct structure for preventing ash leakage according to claim 1, characterized in that: The arrangement of the first air holes (411) and the second air holes (421) includes uniform arrangement, array arrangement and irregular arrangement.
9. The smoke duct structure for preventing ash leakage according to claim 1, characterized in that: A heat insulating layer (3) is provided between the outer wall of the shell (1) and the outer wall of the flue (2), and the heat insulating material of the heat insulating layer (3) comprises a porous material, a heat reflecting material and a vacuum material.