Smoke channel structure and electronic cigarette
By designing a U-shaped flue gas channel structure in electronic cigarettes, the intake pipe and the outlet pipe are installed on the same side of the connecting pipe, the problem of the air intake port being easily blocked is solved, and the spatial layout is optimized, achieving convenient use and component layout.
Patent Information
- Application Number
- CN202421749096.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-22
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-07-22
AI Technical Summary
The smoke channel design of existing electronic cigarettes has the problem that the air intake port is easily blocked, and space occupation is not convenient for the optimized layout of other components.
A flue gas passage structure including an intake pipe, a connecting pipe and an outlet pipe is adopted. The intake pipe and the outlet pipe are arranged on the same side of the connecting pipe to form a U-shaped channel, and the intake hole and the outlet hole are located on the same side.
It effectively prevents users from accidentally blocking the air inlet, and at the same time optimizes the spatial layout of the smoke channel, which facilitates the design and installation of other components of electronic cigarettes.
Smart Images
Figure CN223008444U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electronic cigarettes, and particularly relates to a smoke passage structure and an electronic cigarette. Background Art
[0002] In the existing design of electronic cigarettes, a straight tube type or an L-shaped smoke passage structure is generally adopted. Among them, in the design of the straight tube type smoke passage, the air inlet is arranged at the bottom of the electronic cigarette. Although such a layout is simple, it occupies a relatively large space, which is not conducive to the optimal layout and design of other components inside the electronic cigarette. In the design of the L-shaped smoke passage, the air inlet is arranged on the outside of the electronic cigarette, which solves the problem of space occupation to a certain extent. However, when the user holds the electronic cigarette, it is easy to accidentally block the air inlet, affecting the use of the electronic cigarette. Both of these designs have certain limitations and need further optimization and innovation. Summary of the Utility Model
[0003] The main object of the utility model is to propose a smoke passage structure, aiming to solve the problem that the air inlet of the smoke passage of the electronic cigarette is easily blocked and to optimize the layout of the smoke passage.
[0004] To achieve the above object, the smoke passage structure proposed by the utility model includes an intake pipe, a connection pipe, and an outlet pipe. The intake pipe is formed with an air inlet hole and an intake passage. The air inlet hole communicates the intake passage with the external space. The connection pipe is formed with a connection passage. The outlet pipe is formed with an air outlet hole and an outlet passage. The air outlet hole communicates the outlet passage with the external space. The outlet passage is used to accommodate a cigarette stick and heat the cigarette stick. The intake passage, the connection passage, and the outlet passage are connected in sequence. The air inlet hole and the air outlet hole are located on the same side of the connection passage.
[0005] In one embodiment, the intake pipe and the connection pipe are of an integrally formed structure.
[0006] In one embodiment, the smoke passage structure further includes a lower housing. The connection pipe is arranged inside the lower housing. The connection passage includes a connection pipe air inlet hole, a connection section, and a connection pipe air outlet hole.
[0007] The connection pipe air inlet hole communicates the intake passage with the connection section. The connection pipe air outlet hole communicates the connection section with the outlet passage. The connection pipe air inlet hole and the connection pipe air outlet hole are respectively arranged on the top wall of the lower housing. One end of the intake pipe close to the lower housing is connected to the periphery of the connection pipe air inlet hole. One end of the outlet pipe close to the lower housing is connected to the periphery of the connection pipe air outlet hole.
[0008] In one embodiment, the flue gas passage structure further includes an upper housing which forms a cavity. An air outlet hole is formed in the top wall of the cavity, and a first through hole communicating with the external space is formed in the bottom wall of the cavity. The periphery of the first through hole is connected to the top wall of the lower housing;
[0009] The air outlet pipe includes a heating pipe, and the air outlet passage includes a heating passage. The heating pipe forms the heating passage. The heating pipe is accommodated in the cavity. One end of the heating pipe close to the air outlet hole is connected to the periphery of the air outlet hole. The heating passage communicates with the air outlet hole. One end of the heating pipe close to the lower housing is connected to the periphery of the connecting pipe air outlet hole.
[0010] In one embodiment, the flue gas passage structure further includes a first sealing member and a second sealing member. The first sealing member connects one end of the heating pipe close to the air outlet hole to the periphery of the air outlet hole, and the second sealing member connects one end of the heating pipe close to the lower housing to the periphery of the connecting pipe air outlet hole.
[0011] In one embodiment, the air outlet pipe further includes a docking pipe, and the air outlet passage further includes a docking passage. The docking pipe forms the docking passage. The docking passage communicates the connecting pipe air outlet hole with the heating passage;
[0012] A sleeve is provided on the top wall of the lower housing. One end of the docking pipe close to the lower housing is fixedly connected to the periphery of the connecting pipe air outlet hole. The sleeve is sleeved outside the docking pipe and fixedly connected to the top wall of the lower housing;
[0013] A first annular groove is formed by the inner wall of the sleeve, the top wall of the lower housing, and the outer wall of the docking pipe. The second sealing member is partially clamped in the first annular groove and covers one end of the docking pipe away from the lower housing.
[0014] In one embodiment, a clamping groove is formed in the top wall of the cavity. The air outlet hole is formed in the bottom wall of the clamping groove. The first sealing member is clamped in the clamping groove and abuts against the periphery of the air outlet hole.
[0015] In one embodiment, a first installation groove is formed on one side of the first sealing member facing the heating pipe. One end of the heating pipe close to the air outlet hole is clamped in the first installation groove and abuts against the bottom wall of the first installation groove;
[0016] And / or, a second installation groove is formed on one side of the second sealing member facing the heating pipe. One end of the heating pipe close to the lower housing is clamped in the second installation groove and abuts against the bottom wall of the second installation groove.
[0017] In one embodiment, a second through hole is provided in the bottom wall of the lower housing, and the second through hole connects the communication channel with the external space;
[0018] The flue gas passage structure further includes a bottom housing, the bottom housing closes the second through hole and is detachably connected to the lower housing;
[0019] A second annular groove is formed on the periphery of the second through hole, and a third sealing member is provided in the second annular groove; the bottom housing closes the second annular groove and abuts against the third sealing member.
[0020] The present utility model also provides an electronic cigarette, and the electronic cigarette includes the flue gas passage structure described in any one of the above.
[0021] The technical solution of the present utility model is provided with an intake pipe, a communication pipe and an exhaust pipe. The intake pipe is formed with an intake hole and an intake passage. The intake hole communicates the intake passage with the external space. The communication pipe is formed with a communication channel. The exhaust pipe is formed with an exhaust hole and an exhaust passage. The exhaust hole communicates the exhaust passage with the external space. The exhaust passage is used to accommodate a cigarette stick and heat the cigarette stick. The intake passage, the communication channel and the exhaust passage are connected in sequence. The intake hole and the exhaust hole are located on the same side of the communication channel. By arranging the intake pipe and the exhaust pipe on the same side of the communication pipe, the whole flue gas passage structure presents a U shape, and the intake hole and the exhaust hole are located at the same end of the electronic cigarette, which can not only prevent the user from accidentally blocking the intake port, but also optimize the occupied space of the flue gas passage, facilitating the layout design of other components of the electronic cigarette. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.
[0023] Figure 1 It is a schematic structural diagram of an embodiment of the flue gas passage structure provided by the present utility model;
[0024] Figure 2 For Figure 1 The sectional view at A in
[0025] Figure 3 It is an exploded view of an embodiment of the flue gas passage structure provided by the present utility model;
[0026] Figure 4 It is a schematic structural diagram of an embodiment of the lower housing of the flue gas passage structure provided by the present utility model;
[0027] Figure 5 Schematic diagram of another embodiment of the lower housing of the flue gas passage structure provided by the present utility model;
[0028] Figure 6 Installation schematic diagram of an embodiment of the flue gas passage structure provided by the present utility model;
[0029] Figure 7 Schematic diagram of an embodiment of the upper housing of the flue gas passage structure provided by the present utility model.
[0030] Explanation of the reference numerals in the drawings:
[0031] 1. Inlet pipe; 1a. Inlet hole; 1b. Inlet passage; 2. Lower housing; 21. Connecting pipe; 21a. Connecting passage; 21a1. Connecting pipe inlet hole; 21a2. Connecting section; 21a3. Connecting pipe outlet hole; 22. Sleeve; 2a. First annular groove; 2b. Second through hole; 2c. Second annular groove; 3. Upper housing; 3a. Cavity; 3b. Card slot; 3c. Outlet hole; 3d. First through hole; 31. Outlet pipe; 31a. Outlet passage; 311. Heating pipe; 311a. Heating passage; 312. Docking pipe; 312a. Docking passage; 4. First sealing member; 4a. First installation groove; 5. Second sealing member; 5a. Second installation groove; 6. Third sealing member; 7. Bottom housing; 8. Concentric rod.
[0032] The realization, functional features and advantages of the purpose of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments
[0033] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0034] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present utility model, the directional indications are only used to explain the relative positional relationship and movement conditions between the components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.
[0035] In addition, if the descriptions such as "first" and "second" are involved in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel scenarios. Taking "A and / or B" as an example, it includes Scenario A, or Scenario B, or the scenario where both A and B are satisfied simultaneously. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement it. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.
[0036] The present utility model provides a flue gas passage structure applicable to electronic cigarette products. In some electronic products, pipeline structure design is required to achieve in-and-out air in the same direction, which is also applicable.
[0037] Please refer to Figures 1 to 3 , in an embodiment of the present utility model, the flue gas passage structure includes an intake pipe 1, a connection pipe 21, and an exhaust pipe 31. The intake pipe 1 is formed with an intake hole 1a and an intake passage 1b. The intake hole 1a communicates the intake passage 1b with the external space. The connection pipe 21 is formed with a connection passage 21a. The exhaust pipe 31 is formed with an exhaust hole 3c and an exhaust passage 31a. The exhaust hole 3c communicates the exhaust passage 31a with the external space. The exhaust passage 31a is used to accommodate a cigarette stick and heat the cigarette stick. The intake passage 1b, the connection passage 21a, and the exhaust passage 31a are connected in sequence. The intake hole 1a and the exhaust hole 3c are located on the same side of the connection passage 21a.
[0038] In this embodiment, the intake pipe 1 and the exhaust pipe 31 are connected to the same side of the connection pipe 21, and a U-shaped pipeline is formed inside the three. Gas enters the U-shaped pipeline from the intake hole 1a, passes through the intake passage 1b, the connection passage 21a, and the exhaust passage 31a in sequence, and then leaves the U-shaped passage from the exhaust hole 3c. Among them, the intake hole 1a and the exhaust hole 3c are located on the same side. When a user holds an electronic cigarette adopting the technical solution of the present utility model, it is not easy to affect the use of the electronic cigarette due to accidentally blocking the intake hole 1a. In addition, the electronic cigarette also includes other components such as a power source, and the electronic cigarette is usually long and strip-shaped for easy holding. Setting the flue gas passage as U-shaped reserves a large amount of space at the lower part, facilitating the layout design of other components of the electronic cigarette.
[0039] In order to enable the flue gas passage structure to maintain its structural shape and performance in a high-temperature environment, the intake pipe 1, the connecting pipe 21, and the outlet pipe 31 are all made of high-temperature resistant materials, such as PEEK (polyether ether ketone), PP (polyimide), and metals. These materials have excellent high-temperature resistance, chemical corrosion resistance, good mechanical strength, and wear resistance, and can be undamaged when the heating element in the outlet pipe 31 operates at a high temperature.
[0040] When using the electronic cigarette, insert the cigarette stick into the air outlet passage 31a through the air outlet 3c. At this time, after the heating element is powered on to heat the cigarette stick, after starting to be powered on, the heating tube 311 generates a high temperature above 230 °C to heat the cigarette stick to produce smoke, but the cigarette stick does not burn. When a person smokes through the mouth, the smoke generated by the cigarette stick can be inhaled. The heating element can adopt a metal heating sheet or heating tube, a ceramic heating sheet, a silicon carbide heating element, etc.
[0041] In the present utility model, by arranging the intake pipe 1 and the outlet pipe 31 on the same side of the connecting pipe 21, the entire flue gas passage structure presents a U shape, and the intake hole 1a and the air outlet 3c are located on the same side of the electronic cigarette, which can not only prevent the user from accidentally blocking the intake hole 1a, but also optimize the occupied space of the flue gas passage and facilitate the layout design of other components of the electronic cigarette.
[0042] Specifically, please refer to Figure 2 In an embodiment of the present utility model, the intake pipe 1 and the connecting pipe 21 are of an integrally formed structure. The intake pipe 1 and the connecting pipe 21 are made of heat-resistant plastics such as PEEK or PP through an injection molding integral forming process, or through 3D printing integral forming. In this way, the connection and airtightness between the intake pipe 1 and the connecting pipe 21 are strengthened, and the installation process is simplified.
[0043] Furthermore, please refer to Figure 2 and Figure 3 In an embodiment of the present utility model, the flue gas passage structure further includes a lower housing 2. The connecting pipe 21 is arranged inside the lower housing 2. The connecting passage 21a includes a connecting pipe intake hole 21a1, a connecting section 21a2, and a connecting pipe outlet hole 21a3. The connecting pipe intake hole 21a1 communicates with the intake passage 1b and the connecting section 21a2, and the connecting pipe outlet hole 21a3 communicates with the connecting section 21a2 and the air outlet passage 31a. The connecting pipe intake hole 21a1 and the connecting pipe outlet hole 21a3 are respectively arranged on the top wall of the lower housing 2. One end of the intake pipe 1 close to the lower housing 2 is connected to the periphery of the connecting pipe intake hole 21a1, and one end of the outlet pipe 31 close to the lower housing 2 is connected to the periphery of the connecting pipe outlet hole 21a3.
[0044] In this embodiment, the connection pipe 21 is integrally formed with the lower housing 2 or the connection pipe 21 penetrates through the lower housing 2. The connection pipe air inlet hole 21a1 and the connection pipe air outlet hole 21a3 are arranged on the outer top wall of the lower housing 2. The bottom end of the intake pipe 1 is connected to the outer top wall of the lower housing 2 on the periphery of the connection pipe air inlet hole 21a1, and the bottom end of the outlet pipe 31 is connected to the outer top wall of the lower housing 2 on the periphery of the connection pipe air outlet hole 21a3. The intake channel 1b, the connection channel 21a, and the outlet channel 31a are communicated in sequence. The shape of the lower housing 2 can be designed according to the shape of the installation space inside the electronic cigarette so as to be applied to the electronic cigarette.
[0045] Further, please refer to Figure 2 , Figure 3 and Figure 7 , in an embodiment of the present utility model, the flue gas channel structure further includes an upper housing 3. The upper housing 3 forms a cavity 3a. The top wall of the cavity 3a forms the air outlet hole 3c. The bottom wall of the cavity 3a forms a first through hole 3d communicating with the external space. The periphery of the first through hole 3d is connected to the top wall of the lower housing 2. The outlet pipe 31 includes a heating pipe 311. The outlet channel 31a includes a heating channel 311a. The heating pipe 311 forms the heating channel 311a. The heating pipe 311 is accommodated in the cavity 3a. One end of the heating pipe 311 close to the air outlet hole 3c is connected to the periphery of the air outlet hole 3c. The heating channel 311a is communicated with the air outlet hole 3c. One end of the heating pipe 311 close to the lower housing 2 is connected to the periphery of the connection pipe air outlet hole 21a3.
[0046] In this embodiment, the periphery of the first through hole 3d abuts against the top wall of the lower housing 2. The outer side wall of the upper housing 3 is provided with screw holes, and the lower housing 2 is provided with matching through holes. In this embodiment, screws are further provided to pass through the through holes of the lower housing 2 and be screwed into the screw holes on the outer side wall of the upper housing 3 to realize the connection and fixation of the upper housing 3 and the lower housing 2. In addition, the upper and lower housings 2 can also be fixed by means of snap connection and the like. The heating pipe 311 is accommodated in the space surrounded by the upper and lower housings 2 and is connected to the peripheries of the air outlet hole 3c and the connection pipe air outlet hole 21a3, so that the connection pipe air outlet hole 21a3, the heating channel 311a, and the air outlet hole 3c are communicated in sequence. In this way, the upper and lower housings 2 isolate the heating pipe 311 from external parts, avoiding the contact and heat damage of other components of the electronic cigarette with the heating pipe 311. And when a cigarette is inserted for heating, the heat generated by the heating pipe 311 is not easily dissipated to the surroundings and is concentrated for heating the cigarette, improving the utilization rate of thermal energy. And the upper and lower housings 2 respectively abut tightly against the heating pipe 311, which is beneficial to improving the sealing performance of the flue gas channel structure.
[0047] Further, please refer to Figures 2 to 3, in an embodiment of the present utility model, the flue gas passage structure further includes a first seal 4 and a second seal 5. The first seal 4 connects one end of the heating tube 311 close to the air outlet 3c to the periphery of the air outlet 3c, and the second seal 5 connects one end of the heating tube 311 close to the lower housing 2 to the periphery of the connecting pipe air outlet 21a3. In this embodiment, the first seal 4 and the second seal 5 are sealing rubber rings made of high-temperature resistant materials, including but not limited to medical silicone or food silicone, etc., and high-temperature resistant sealing glue can also be used.
[0048] Further, please refer to Figures 2 to 4 , in an embodiment of the present utility model, the air outlet pipe 31 further includes a docking pipe 312, and the air outlet passage 31a further includes a docking passage 312a. The docking pipe 312 forms the docking passage 312a. The docking passage 312a communicates the connecting pipe air outlet 21a3 with the heating passage 311a. A sleeve 22 is provided on the top wall of the lower housing. One end of the docking pipe 312 close to the lower housing 2 is fixedly connected to the periphery of the connecting pipe air outlet 21a3. The sleeve 22 is sleeved outside the docking pipe 312 and fixedly connected to the top wall of the lower housing 2. A first annular groove 2a is formed by the inner wall of the sleeve 22, the top wall of the lower housing 2, and the outer wall of the docking pipe 312. The second seal 5 is partially clamped in the first annular groove 2a and covers one end of the docking pipe 312 away from the lower housing 2.
[0049] In this embodiment, the shape of the docking pipe 312 matches that of the heating tube 311. The docking pipe 312 surrounds the periphery of the connecting pipe air outlet 21a3 and the bottom end of the docking pipe 312 is connected to the top wall of the lower housing 2. The docking pipe 312 forms a docking passage 312a. The docking passage 312a communicates the connecting pipe air outlet 21a3 with the heating passage 311a. A sleeve 22 is sleeved outside the docking pipe 312. The inner wall of the sleeve 22 is spaced from the outer wall of the docking pipe 312. The bottom end of the sleeve 22 is connected to the top wall of the lower housing 2. The docking pipe 312 and the sleeve 22 are integrally formed with the lower housing 2 or connected and fixed to the lower housing 2 by means of hot melting, etc. Thus, the first annular groove 2a is formed by the inner wall of the sleeve 22, the top wall of the lower housing 2, and the outer wall of the docking pipe 312.
[0050] Using a high-temperature resistant sealing rubber ring as the seal and setting it at the connection between the heating tube 311 and the upper and lower housings 2. Since the sealing rubber ring has a certain elasticity and the electronic cigarette is often picked up and placed during daily use, in order to prevent the sealing ring from shifting with the lower housing 2 when the electronic cigarette is vibrated or its position is flipped, the sealing ring is set in the first annular groove 2a to fix the sealing ring, and the sealing ring partially covers the top of the docking pipe 312. At the same time, the installation and positioning of the sealing ring are also facilitated by setting the first annular groove 2a.
[0051] Further, to prevent the sealing ring from shifting relative to the upper housing 3 when the electronic cigarette is vibrated or flipped, please refer to Figures 2 to 4 , in an embodiment of the present invention, a clamping groove 3b is formed on the top wall of the cavity 3a, and an air outlet hole 3c is formed on the bottom wall of the clamping groove 3b. The first sealing member 4 is clamped in the clamping groove 3b and abuts against the periphery of the air outlet hole 3c.
[0052] Furthermore, please refer to FIG. Figures 2 to 4 , in an embodiment of the present invention, a first installation groove 4a is formed on one side of the first sealing member 4 facing the heating tube 311. One end of the heating tube 311 close to the air outlet hole 3c is clamped in the first installation groove 4a and abuts against the bottom wall of the first installation groove 4a, and / or a second installation groove 5a is formed on one side of the second sealing member 5 facing the heating tube 311. One end of the heating tube 311 close to the lower housing 2 is clamped in the second installation groove 5a and abuts against the bottom wall of the second installation groove 5a.
[0053] In this embodiment, the first sealing member 4 is clamped in the clamping groove 3b, the top end of the heating tube 311 is clamped in the first installation groove 4a, the second sealing member 5 is clamped in the first annular groove 2a, and the bottom end of the heating tube 311 is clamped in the second installation groove 5a, so as to realize the installation and fixation of the heating tube 311 in the cavity 3a. In this way, the sealing member abuts against the end of the heating tube 311 and wraps part of the end of the heating tube 311, strengthening the airtightness between the heating tube 311 and the sealing member and facilitating installation.
[0054] Particularly, please refer to Figure 3 and Figure 6, in an embodiment of the present utility model, in combination with the solutions of the above embodiments, the flue gas passage structure of this embodiment includes an intake pipe 1, a connection pipe 21, a lower housing 2, a butt joint pipe 312, a sleeve 22, an upper housing 3, a heating pipe 311, a first sealing rubber ring, and a second sealing rubber ring; the intake pipe 1 is formed with an intake hole 1a and an intake passage 1b, the connection pipe 21 is formed with a connection passage 21a and a connection pipe outlet hole 21a3, the intake pipe 1, the connection pipe 21, the lower housing 2, the butt joint pipe 312, and the sleeve 22 are integrally injection-molded with heat-resistant plastic, and the connection pipe outlet hole 21a3 is arranged on the top wall of the lower housing 2; the butt joint pipe 312 is arranged around the connection pipe outlet hole 21a3, the sleeve 22 is arranged around the butt joint pipe 312, the outer wall of the butt joint pipe 312, the inner wall of the sleeve 22, and the top wall of the lower housing 2 form a first annular groove 2a, and the first sealing rubber ring is clamped in the annular groove and forms a second installation groove 5a; the upper housing 3 is formed with a cavity 3a, the inner top wall of the cavity 3a is formed with a clamping groove 3b, the bottom wall of the clamping groove 3b is formed with an outlet hole 3c, and the second sealing rubber ring is clamped in the clamping groove 3b and forms a first installation groove 4a; the top end of the heating pipe 311 is clamped in the first installation groove 4a, the bottom end of the heating pipe 311 is clamped in the second installation groove 5a, the intake hole 1a, the intake passage 1b, the connection passage 21a, the connection pipe outlet hole 21a3, the butt joint passage 312a, the heating passage 311a, and the outlet hole 3c are sequentially communicated to form a U-shaped flue gas passage; the outer wall of the upper housing 3 and the outer wall of the lower housing 2 are connected by screws and are mutually pressed tightly. In this way, the upper housing 3, the first sealing rubber ring, the heating pipe 311, the second sealing rubber ring, and the lower housing 2 are sequentially pressed tightly to achieve the sealing of the flue gas passage.
[0055] When installing the flue gas passage structure of this embodiment, first insert the concentric rod 8 into the butt joint passage 312a to achieve positioning and guiding effects on subsequent components. Secondly, put the second sealing rubber ring on the top end of the concentric rod 8 and slide it downward into the first annular groove 2a. Then, put the heating pipe 311 on the top end of the concentric rod 8 and slide it downward into the second installation groove 5a. Next, put the first sealing rubber ring on the top end of the concentric rod 8 and slide it downward until it abuts against the heating pipe 311. Then, put the upper housing 3 on the top end of the concentric rod 8 through the outlet hole 3c and slide it downward until the bottom wall of the clamping groove 3b abuts against the first sealing rubber ring and the bottom end of the upper housing 3 abuts against the top wall of the lower housing 2. Finally, connect and fix the upper and lower housings 2 with screws. It should be noted that before installation, the two ends of the heating pipe 311 and the silica gel should be pre-pressed, and the pre-pressing amount is 15% - 25% to ensure stable sealing.
[0056] Further, please refer to Figures 4 to 5, in an embodiment of the present utility model, a second through hole 2b is provided on the bottom wall of the lower housing 2. The second through hole 2b connects the communication channel 21a with the external space. The flue gas channel structure further includes a bottom housing 7. The bottom housing 7 closes the second through hole 2b and is detachably connected to the lower housing 2. A second annular groove 2c is formed on the periphery of the second through hole 2b. A third sealing member 6 is provided in the second annular groove 2c. The bottom housing 7 closes the second annular groove 2c and abuts against the third sealing member 6.
[0057] In this embodiment, the bottom housing 7 and the lower housing 2 are connected by screws or snap connections. Thus, when foreign objects accidentally enter the flue gas channel, the bottom housing 7 can be disassembled, and the foreign objects can be cleared out through the second through hole 2b, which is convenient for the repair and maintenance of the flue gas channel structure. The second annular groove 2c is provided on the periphery of the second through hole 2b. The third sealing member 6 is limited in the second annular groove 2c. The bottom housing 7 closes the second annular groove 2c and abuts against the third sealing member 6, strengthening the airtightness of the connection between the bottom housing 7 and the lower housing 2.
[0058] The present utility model further proposes an electronic cigarette, which includes the flue gas channel structure described in any one of the above. In an embodiment, the flue gas channel structure is provided at the top of the electronic cigarette. The space of the electronic cigarette housing below the flue gas channel houses components such as a battery and a circuit board. Thus, the layout of the components of the electronic cigarette is flexible, the adjustable space is large, and when using this electronic cigarette, it is not easy to accidentally block the air inlet of the flue gas channel structure, which is convenient for use.
[0059] The above is only an exemplary embodiment of the present utility model, and does not limit the patent scope of the present utility model. Any equivalent structural transformation made under the technical concept of the present utility model by using the content of the specification and drawings of the present utility model, or directly / indirectly applied to other related technical fields, is included in the patent protection scope of the present utility model.
Claims
1. A smoke channel structure, characterized in that: include: An air intake pipe, wherein the air intake pipe is formed with an air intake hole and an air intake channel, and the air intake hole communicates with the air intake channel and an external space; A communication pipe, wherein the communication pipe is formed with a communication channel; An air outlet pipe, wherein the air outlet pipe is formed with an air outlet hole and an air outlet channel, the air outlet hole connects the air outlet channel and an external space, and the air outlet channel is used to accommodate cigarettes and heat the cigarettes; The air inlet channel, the communication channel and the air outlet channel are connected in sequence, and the air inlet hole and the air outlet hole are located on the same side of the communication channel.
2. The smoke channel structure according to claim 1, characterized in that: The air intake pipe and the communication pipe are an integrally formed structure.
3. The smoke channel structure according to claim 1, characterized in that: The smoke channel structure further includes a lower shell, the communication pipe is arranged in the lower shell, and the communication channel includes a communication pipe air inlet, a communication section and a communication pipe air outlet; The connecting pipe air inlet hole connects the air inlet channel and the connecting section, the connecting pipe air outlet hole connects the connecting section and the air outlet channel, the connecting pipe air inlet hole and the connecting pipe air outlet hole are respectively arranged on the top wall of the lower shell body, one end of the air inlet pipe close to the lower shell body is connected to the periphery of the connecting pipe air inlet hole, and one end of the air outlet pipe close to the lower shell body is connected to the periphery of the connecting pipe air outlet hole.
4. The smoke channel structure according to claim 3, characterized in that: The smoke channel structure further includes an upper shell, the upper shell is formed with a cavity, the top wall of the cavity is formed with the air outlet, the bottom wall of the cavity is formed with a first through hole communicating with the external space, and the periphery of the first through hole is connected to the top wall of the lower shell; The air outlet pipe includes a heating pipe, the air outlet channel includes a heating channel, the heating pipe is formed with the heating channel, the heating pipe is accommodated in the cavity, one end of the heating pipe close to the air outlet is connected to the periphery of the air outlet, the heating channel is communicated with the air outlet, and one end of the heating pipe close to the lower shell is connected to the periphery of the air outlet of the communication pipe.
5. The smoke channel structure according to claim 4, characterized in that: The smoke channel structure also includes a first seal and a second seal, the first seal connecting one end of the heating tube close to the air outlet and the periphery of the air outlet, and the second seal connecting one end of the heating tube close to the lower shell and the periphery of the air outlet of the communication pipe.
6. The smoke channel structure according to claim 5, characterized in that: The air outlet pipe further includes a butt joint pipe, and the air outlet channel further includes a butt joint channel. The butt joint pipe is formed with the butt joint channel, and the butt joint channel connects the air outlet hole of the communication pipe with the heating channel; The top wall of the lower shell is provided with a sleeve, one end of the butt joint tube close to the lower shell is fixedly connected to the periphery of the air outlet of the communication pipe, and the sleeve is sleeved outside the butt joint tube and fixedly connected to the top wall of the lower shell; A first annular groove is formed on the inner wall of the sleeve, the top wall of the lower shell and the outer wall of the butt joint tube. The second sealing member is partially disposed in the first annular groove and covers an end of the butt joint tube away from the lower shell.
7. The smoke channel structure according to claim 5, characterized in that: A slot is formed on the top wall of the cavity, the air outlet is formed on the bottom wall of the slot, and the first sealing member is disposed in the slot and abuts against the periphery of the air outlet.
8. The smoke channel structure according to claim 5, characterized in that: A first mounting groove is formed on a side of the first sealing member facing the heating tube, and an end of the heating tube close to the air outlet is clamped in the first mounting groove and abuts against a bottom wall of the first mounting groove; And / or, a second mounting groove is formed on a side of the second sealing member facing the heating pipe, and one end of the heating pipe close to the lower shell is clamped in the second mounting groove and abuts against the bottom wall of the second mounting groove.
9. The smoke channel structure according to claim 3, characterized in that: The bottom wall of the lower shell is provided with a second through hole, and the second through hole communicates with the communication channel and the external space; The smoke channel structure further comprises a bottom shell, which closes the second through hole and is detachably connected to the lower shell; A second annular groove is formed on the periphery of the second through hole, and a third sealing member is disposed in the second annular groove; the bottom shell body closes the second annular groove and abuts against the third sealing member.
10. An electronic cigarette, characterized in that: The electronic cigarette comprises the smoke channel structure as claimed in any one of claims 1 to 9.