CN219125373U - Antifouling air guide spare and electron cigarette - Google Patents

Abstract

The utility model discloses an antifouling air guide piece and an electronic cigarette. The utility model relates to an anti-fouling air guide piece, which comprises a guide pipe, wherein the two ends of the guide pipe are respectively set to be an air inlet end and an air outlet end along the axial direction of the guide pipe, a first through hole is arranged along the axial direction, an anti-fouling layer is arranged on the inner wall of the first through hole, the anti-fouling layer is defined to be an air flow channel, the anti-fouling layer is made of hydrophobic or oleophobic materials, the anti-fouling layer comprises protruding parts, the protruding parts are arranged at intervals, and the distance between the adjacent protruding parts is gradually reduced along the direction from the air inlet end to the air outlet end, so that condensate on the inner wall of the air flow channel can move towards the air inlet end when the guide pipe is in a horizontal state. According to the air guide piece, the directional movement of condensate is realized through the anti-fouling layer with the special microstructure, so that the condensate is prevented from being adhered to the inner wall of the airflow channel to cause bacterial breeding, and the safety and the sucking experience of the sucking electronic cigarette are improved.

Description

Antifouling air guide spare and electron cigarette

Technical Field

The utility model relates to the field of electronic cigarettes, in particular to an antifouling air guide piece and an electronic cigarette.

Background

Electronic cigarettes are popular with more and more consumers due to convenient smoking and good taste. In the related art, an electronic cigarette often includes a stem and a cartridge, and an atomization device in the cartridge atomizes tobacco tar and mixes the atomized tobacco tar with an airflow to form smoke with a relatively high temperature, and the smoke is drawn into a mouth of a smoker along an airflow channel. After smoking, a certain amount of smoke is often left in the airflow channel and is not sucked out, so that condensate is formed by condensation on the inner wall of the airflow channel, and the electronic cigarette is usually placed horizontally when not in use, so that the condensate is attached to the inner wall of the airflow channel for a long time, bacteria are easy to breed, and harmful substances are generated.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the antifouling air guide piece, which can realize the directional movement of condensate, prevent bacteria breeding caused by the adhesion of condensate on the inner wall of the air flow channel and is beneficial to improving the safety and the smoking experience of the smoking electronic cigarette.

The utility model further provides the electronic cigarette with the antifouling air guide piece.

An anti-fouling air guide according to an embodiment of the first aspect of the present utility model comprises:

the device comprises a conduit, wherein the two ends of the conduit are respectively provided with an air inlet end and an air outlet end along the axial direction of the conduit, the conduit is provided with a first through hole along the axial direction, the inner wall of the first through hole is provided with an antifouling layer, and the antifouling layer defines an air flow channel;

the anti-fouling layer is made of hydrophobic or oleophobic materials and comprises protruding portions, the protruding portions are arranged at intervals, the distance between every two adjacent protruding portions is gradually reduced along the direction from the air inlet end to the air outlet end, and when the guide pipe is in a horizontal state, condensate on the inner wall of the air flow channel can move towards the air inlet end.

The antifouling air guide piece provided by the embodiment of the utility model has at least the following beneficial effects: the hydrophobic or oleophobic anti-fouling layer enables condensate to form condensate beads on the inner wall of the airflow channel, and condensate cannot infiltrate into the anti-fouling layer. The arrangement of the protruding part enables the condensate bead to be acted by the force towards the direction of the air inlet end, and the condensate bead can move towards the direction of the air inlet end when the air guide piece is horizontally placed.

According to some embodiments of the utility model, the height of the protrusions is 100 nanometers or less.

According to some embodiments of the utility model, the angle between the side walls of adjacent projections is 1 ° to 15 ° along the axial direction of the catheter.

According to some embodiments of the utility model, a maximum spacing between adjacent ones of the lobes is within 2 millimeters along an axial direction of the catheter.

According to some embodiments of the utility model, the side walls on both sides of the boss are arranged perpendicular to the inner wall of the gas flow channel in the radial direction of the duct.

According to some embodiments of the utility model, in a radial section of the catheter, a sidewall spacing on both sides of the boss is gradually reduced along a central axis of the catheter to an inner wall direction of the catheter.

According to some embodiments of the utility model, a flange is circumferentially disposed on an inner wall of the first through hole at the air outlet end.

An anti-fouling air guide according to an embodiment of the second aspect of the present utility model includes:

the guide pipe is provided with an air inlet end and an air outlet end along the axial direction of the guide pipe, the guide pipe is provided with an air flow channel along the axial direction, the guide pipe is made of hydrophobic or oleophobic materials, the inner wall of the air flow channel is provided with protruding parts, the protruding parts are arranged at intervals, the distance between the side walls of the protruding parts is gradually reduced along the direction from the air inlet end to the air outlet end, so that condensate on the inner wall of the air flow channel can move towards the air inlet end when the guide pipe is in a horizontal state.

The antifouling air guide piece provided by the embodiment of the utility model has at least the following beneficial effects: the hydrophobic or oleophobic conduit causes condensate to form condensate beads on the inner wall of the airflow channel, and condensate cannot infiltrate into the conduit. The inner wall of the airflow channel is provided with the protruding part, so that the condensate bead is acted by the force towards the direction of the air inlet end, and the condensate bead can move towards the direction of the air inlet end when the air guide piece is horizontally placed.

An anti-fouling air guide according to an embodiment of the third aspect of the present utility model includes:

the guide pipe is provided with a first through hole along the axial direction, a hydrophobic or oleophobic antifouling layer is arranged on the inner wall of the first through hole, the antifouling layer defines an airflow channel, the diameter of the airflow channel gradually decreases along the direction from the air inlet end to the air outlet end, so that condensate on the inner wall of the airflow channel can move towards the air inlet end when the guide pipe is in a horizontal state.

The antifouling air guide piece provided by the embodiment of the utility model has at least the following beneficial effects: the hydrophobic or oleophobic anti-fouling layer enables condensate to form condensate beads on the inner wall of the airflow channel, and condensate cannot infiltrate into the anti-fouling layer. Condensate beads formed on the inner wall of the airflow channel can move towards the air inlet end under the action of gravity.

An anti-fouling air guide according to an embodiment of the fourth aspect of the present utility model includes:

the guide pipe is axially provided with an air inlet end and an air outlet end along the axial direction of the guide pipe, the guide pipe is axially provided with an air flow channel, the guide pipe is made of hydrophobic or oleophobic materials, the diameter of the air flow channel gradually decreases from the air inlet end to the air outlet end, and condensate on the inner wall of the air flow channel can move towards the air inlet end when the guide pipe is in a horizontal state.

The antifouling air guide piece provided by the embodiment of the utility model has at least the following beneficial effects: the hydrophobic or oleophobic conduit causes condensate to form condensate beads on the inner wall of the airflow channel, and condensate cannot infiltrate into the conduit. Condensate beads formed on the inner wall of the airflow channel can move towards the air inlet end under the action of gravity.

An electronic cigarette according to an embodiment of the fifth aspect of the present utility model includes:

the cigarette comprises a cigarette stem, a cigarette holder and a cigarette holder, wherein the cigarette stem defines an atomization cavity, and a heating component is arranged in the atomization cavity to form smoke;

a mouthpiece comprising an anti-fouling air guide member according to any of the embodiments above, the air flow channel of the anti-fouling air guide member being in communication with the atomising chamber so that the smoke in the atomising chamber can be expelled through the air flow channel and the condensate can flow back into the atomising chamber.

The electronic cigarette provided by the embodiment of the utility model has at least the following beneficial effects: according to the electronic cigarette, the condensate is recovered by adopting the air guide piece, so that the possibility that the condensate is adhered to the inner wall of the cigarette holder is reduced, bacteria are prevented from being generated on the inner wall of the cigarette holder, and the sucking taste of consumers is improved.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The utility model is further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a schematic view of an air guide according to an embodiment of the first aspect of the present utility model;

FIG. 2 is an enlarged schematic view of area A in FIG. 1;

FIG. 3 is a schematic illustration of the force exerted by condensate beads on an anti-fouling layer;

FIG. 4 is a schematic cross-sectional view of a protrusion according to an embodiment of the present utility model;

FIG. 5 is a schematic cross-sectional view of a protrusion according to another embodiment of the present utility model;

FIG. 6 is a schematic structural view of an air guide member according to an embodiment of the third aspect of the present utility model;

fig. 7 is a schematic structural diagram of an electronic cigarette according to an embodiment of the fifth aspect of the present utility model.

Reference numerals:

conduit 100, inlet end 110, outlet end 120, anti-fouling layer 130, airflow channel 140, boss 150, recess 160, and atomizing chamber 170.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, the meaning of a number is one or more, the meaning of a number is two or more, and greater than, less than, exceeding, etc. are understood to exclude the present number, and the meaning of a number is understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

In the description of the present utility model, the descriptions of the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In the use scene of the electronic cigarette, a smoker can normally place the electronic cigarette horizontally after sucking the electronic cigarette, and at the moment, a certain amount of smoke is often still present in the airflow channel and is not sucked out, so that condensate is formed by condensation on the inner wall of the airflow channel. If the condensate is attached to the inner wall of the airflow channel for a long time, bacteria are easy to breed, harmful substances are generated, and then in the next sucking process, the harmful substances are easy to be sucked into the human body along with smoke, so that adverse effects are caused. The application provides an antifouling air guide (hereinafter referred to as an air guide) which has the characteristics of hydrophobicity or oleophobicity, so that condensate is not easy to adhere to the inner wall of an air flow channel. Furthermore, when the electronic cigarette is in a horizontal state, condensate formed on the inner wall of the airflow channel moves towards the inner direction of the electronic cigarette, so that condensate can be prevented from being remained on the inner wall of the airflow channel, and condensate is prevented from being discharged out of the electronic cigarette when moving towards the inner direction of the electronic cigarette, and other objects in contact with the electronic cigarette are polluted.

The term "horizontal state" as used herein includes both an absolute horizontal state in a conventional sense and an approximate horizontal state, that is, a relative absolute horizontal state may have a certain skew.

In the present application, in order to achieve the above-mentioned effects, the air guide is improved in terms of a macro structure and a micro structure, respectively, the embodiments of the first aspect and the embodiments of the second aspect are improved in terms of a micro scale, and the embodiments of the third aspect and the embodiments of the fourth aspect are improved in terms of a macro scale, which will be described in detail later. Both macroscopic and microscopic improvements enable directional movement of condensate when the air guide is laid flat, and in other embodiments, the macroscopic and microscopic structures of the present application may be combined to achieve better drainage. It should be noted that, in this application, for convenience of understanding, a plurality of microscopic structural diagrams are attached, and the dimensions and proportions thereof do not represent the actual dimensions and actual proportions.

As shown in fig. 1, an embodiment of the first aspect of the present application provides an anti-fouling air guide comprising a conduit 100. Along the axial direction of the catheter 100, two ends of the catheter 100 are respectively provided with an air inlet end 110 and an air outlet end 120, the first through hole is axially arranged on the catheter 100, and smoke flows in from the air inlet end 110 and flows out from the air outlet end 120. An anti-fouling layer 130 is disposed on the inner wall of the first through hole, the anti-fouling layer 130 defines an air outlet channel 140, and condensate is formed on the surface of the anti-fouling layer 130 when high-temperature smoke flows through. The anti-fouling layer 130 is made of a hydrophobic or oleophobic material, and thus the condensate has a large contact angle when in contact with the anti-fouling layer 130 to be coagulated into liquid droplets on the surface of the anti-fouling layer 130.

In the present embodiment, as shown in fig. 1 and 2, the scale in the drawings does not represent a true scale. The anti-fouling layer 130 comprises a microstructure, and the surface of the microstructure is rough, so that the contact area between condensate and the surface of the waterproof layer is reduced, and air is conveniently locked. Specifically, as shown in fig. 2, the anti-fouling layer 130 of the present application includes a protruding portion 150, each protruding portion 150 is disposed at intervals, two adjacent protruding portions 150 define a recessed portion 160, the length directions of the protruding portion 150 and the recessed portion 160 are all parallel to the axial direction of the catheter 100, the protruding portion 150 and the recessed portion 160 are disposed at intervals, and the distance between the adjacent protruding portions 150 is gradually reduced along the air inlet end 110 to the air outlet end 120, and the condensate bead is lifted by the protruding portion 150. Since the condensate bead is approximately spherical, there is a cross section as shown in fig. 3, the condensate bead applies pressure to the boss 150, and the boss 150 also applies a condensate bead reaction force F, the component force of which in the axial direction can drive the condensate bead toward the air inlet end 110 of the air guide. And further, when the duct 100 is in a horizontal state, condensate on the inner wall of the airflow passage 140 can move toward the air inlet end 110.

Based on the above-described embodiments, in the air guide of the present application, the dirt preventing layer 130 cannot be impregnated with the condensate due to the hydrophobicity or oleophobicity of the dirt preventing layer 130 so that the condensate forms a condensate bead on the inner wall of the air flow channel 140. The protrusion 150 is disposed such that the condensate bead is acted upon by a force directed toward the air inlet end 110, such that when the air guide is laid flat, the condensate bead will move toward the air inlet end 110. The air guide piece realizes the directional movement of condensate through the anti-fouling layer 130 with a special microstructure, prevents the condensate from being adhered to the inner wall of the airflow channel 140 to cause bacterial breeding, and is beneficial to improving the safety and the smoking experience of the smoking electronic cigarette.

In some embodiments, a ring of flange is disposed on the inner wall of the air inlet end 110 of the duct 100, when the electronic cigarette is in the upright state (i.e. the air inlet end 110 is on the lower side and the air outlet end 120 is on the upper side), the condensate bead can naturally flow back into the cavity on one side of the air inlet end 110 under the action of gravity, or when the smoking force of the smoker is large, the condensate bead on the inner wall of the air flow channel 140 can move towards the air outlet end 120 under the action of suction force, and the flange can block the condensate bead to prevent escape. When the electronic cigarette is in a flat state (i.e. when the air inlet end 110 and the air outlet end 120 are positioned on the same horizontal plane), the residual smoke in the air flow channel 140 gradually forms condensate beads on the inner wall, and the condensate beads can also move to one side of the air inlet end 110 under the action of the reaction force F exerted by the bulge part 150; when the electronic cigarette is in an inverted state (i.e. the air inlet end 110 is on the upper side and the air outlet end 120 is on the lower side), the condensate beads are blocked by the flange and cannot escape, and when the electronic cigarette is restored to a vertical state or a horizontal state, the condensate beads can be recovered.

In some embodiments, the protrusions 150 are disposed up to 100 nanometers above the depressions 160 in the radial direction of the catheter 100. In other embodiments, the sidewalls of adjacent lobes 150 are angled between 1 and 15 along the axial direction of catheter 100. In other embodiments, the maximum spacing between adjacent lobes is within 2 millimeters along the axial direction of the catheter 100. The anti-fouling layer 130 in the above embodiment has a better effect of driving the condensate bead to move directionally.

In some embodiments, as shown in fig. 4, along a radial cross-section of the catheter 100, the sidewalls on both sides of the boss 150 are disposed perpendicular to the inner wall of the first through-hole. That is, the cross-sectional shape of the boss 150 is similar to a rectangle, and such a structure is easy to process, and may employ, for example: plasma etching, laser engraving and other processing technologies. In other embodiments, as shown in fig. 5, in the radial section of the catheter 100, the sidewall spacing between two sides of the protruding portion 150 is gradually reduced along the direction from the central axis of the catheter 100 to the inner wall of the catheter 100, i.e. the cross-sectional shape of the protruding portion 150 is similar to an inverted trapezoid, and the contact angle between the protruding portion 150 and the condensate bead of this structure is larger, the friction resistance is smaller, and the directional movement effect of the condensate bead is better.

In the air guide of the second embodiment of the present application, the grooves are directly machined on the inner wall of the first through hole by laser engraving or other machining process, and two adjacent grooves define one protruding portion 150, so as to achieve a similar technical effect as in the first embodiment. Specifically, the air guide includes a conduit 100. In the axial direction of the duct 100, the two ends of the duct 100 are respectively provided with an air inlet end 110 and an air outlet end 120, the first through hole is axially arranged on the duct 100, and the smoke flows in from the air inlet end 110 and flows out from the air outlet end 120. The inner wall of the first through hole is provided with micro-scale protrusions 150, the protrusions 150 are arranged at intervals, and the distance between the sidewalls of the protrusions 150 is gradually reduced from the air inlet end 110 to the air outlet end 120, so that condensate on the inner wall of the air flow channel 140 can move towards the air inlet end 110 when the conduit 100 is in a horizontal state. In some embodiments, the conduit 100 is made of a hydrophobic or oleophobic material, so that the conduit 100 can obtain a better hydrophobic or oleophobic effect, and the condensate forms a condensate bead on the inner wall of the airflow channel 140, and moves towards the air inlet end 110 under the driving of the reaction force F applied by the inner wall of the first through hole, or has a tendency to move towards the air inlet end 110, so as to prevent the condensate from adhering to the inner wall of the airflow channel 140 and breeding bacteria.

In the air guide of the embodiment of the third aspect of the present application, the condensate bead is moved toward the air intake end 110 by gravity by the inclination of the contact surface macroscopically. As shown in fig. 6, specifically, two ends of the pipe 100 are respectively set to be an inlet end 110 and an outlet end 120 along the axial direction of the pipe 100, and a first through hole is axially provided in the pipe 100, and smoke flows in from the inlet end 110 and flows out from the outlet end 120. The inner wall of the first through hole is provided with a hydrophobic or oleophobic anti-fouling layer 130, the anti-fouling layer 130 defines an air outlet channel 140, and the diameter of the air outlet channel 140 gradually decreases along the air inlet end 110 to the air outlet end 120, so that when the conduit 100 is in a horizontal state, the inner wall of the air outlet channel 140 has a certain gradient, and condensate beads formed on the inner wall of the air outlet channel 140 move towards the air inlet end 110 under the action of gravity. In fig. 6, the thickness of the anti-fouling layer 130 is gradually increased along the inlet end 110 to the outlet end 120 so that the diameter of the air flow channel 140 is gradually decreased, and in other embodiments, the thickness of the duct 100 may be gradually increased so that the diameter of the air flow channel 140 is gradually decreased.

In the air guide of the fourth aspect of the embodiment of the present application, the condensate bead is moved toward the air intake end 110 by gravity, also by the inclination of the contact surface macroscopically. Specifically, the duct 100 is made of a hydrophobic or oleophobic material, and two ends of the duct 100 are respectively set to be an air inlet end 110 and an air outlet end 120 along the axial direction of the duct 100, and the first through hole is axially formed in the duct 100, so that smoke flows in from the air inlet end 110 and smoke flows out from the air outlet end 120. The first through hole defines an airflow channel 140, and the diameter of the airflow channel 140 gradually decreases from the air inlet end 110 to the air outlet end 120, i.e. the thickness of the conduit 100 gradually increases, so that when the conduit 100 is in a horizontal state, the inner wall of the airflow channel 140 has a certain gradient, and condensate beads formed on the inner wall of the airflow channel 140 move towards the air inlet end 110 under the action of gravity.

The fifth aspect of the present application further provides an electronic cigarette, as shown in fig. 7, where the electronic cigarette includes a tobacco rod and a cigarette holder, the tobacco rod defines an atomization cavity 170, and a heating component is disposed in the atomization cavity 170 to evaporate tobacco tar into high-temperature smoke. The mouthpiece is an anti-fouling air guide member as mentioned in any of the above embodiments, the airflow channel 140 is communicated with the atomization cavity 170, so that the smoke in the atomization cavity 170 can be discharged through the airflow channel 140, and condensate formed on the inner wall of the airflow channel 140 can flow back into the atomization cavity 170. According to the electronic cigarette, the condensate is recovered by adopting the air guide piece, so that the possibility that the condensate is adhered to the inner wall of the cigarette holder is reduced, bacteria are prevented from being generated on the inner wall of the cigarette holder, and the sucking taste of consumers is improved. On the other hand, the electronic cigarette realizes the recovery of condensed tobacco tar, and the condensed tobacco tar is further recovered into the atomizing cavity 170, so that secondary high-temperature evaporation can be performed, and the utilization rate of the tobacco tar is further improved.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model. Furthermore, embodiments of the utility model and features of the embodiments may be combined with each other without conflict.

Claims (11)

1. An anti-fouling air guide member comprising:

the device comprises a conduit, wherein the two ends of the conduit are respectively provided with an air inlet end and an air outlet end along the axial direction of the conduit, the conduit is provided with a first through hole along the axial direction, the inner wall of the first through hole is provided with an antifouling layer, and the antifouling layer defines an air flow channel;

the anti-fouling layer is made of hydrophobic or oleophobic materials and comprises protruding portions, the protruding portions are arranged at intervals, the distance between every two adjacent protruding portions is gradually reduced along the direction from the air inlet end to the air outlet end, and when the guide pipe is in a horizontal state, condensate on the inner wall of the air flow channel can move towards the air inlet end.

2. The anti-fouling air guide of claim 1, wherein the height of the protrusions is 100 nanometers or less.

3. An anti-fouling air guide according to claim 1, wherein the angle between the side walls of adjacent projections is 1 ° to 15 ° in the axial direction of the duct.

4. The anti-fouling air guide of claim 1, wherein a maximum spacing between adjacent ones of the bosses is within 2 millimeters in an axial direction of the duct.

5. The anti-fouling air guide of claim 1, wherein the side walls on both sides of the boss are disposed perpendicular to the inner wall of the air flow channel in the radial direction of the duct.

6. The anti-fouling air guide of claim 1, wherein in a radial cross section of the guide tube, a sidewall pitch on both sides of the boss is gradually reduced along a central axis of the guide tube to an inner wall direction of the guide tube.

7. The anti-fouling air guide of claim 1, wherein a flange is circumferentially disposed on an inner wall of the first through hole at the air outlet end.

8. An anti-fouling air guide member comprising:

the guide pipe is provided with an air inlet end and an air outlet end along the axial direction of the guide pipe, the guide pipe is provided with an air flow channel along the axial direction, the guide pipe is made of hydrophobic or oleophobic materials, the inner wall of the air flow channel is provided with protruding parts, the protruding parts are arranged at intervals, the distance between the side walls of the protruding parts is gradually reduced along the direction from the air inlet end to the air outlet end, so that condensate on the inner wall of the air flow channel can move towards the air inlet end when the guide pipe is in a horizontal state.

9. An anti-fouling air guide member comprising:

the guide pipe is provided with a first through hole along the axial direction, a hydrophobic or oleophobic antifouling layer is arranged on the inner wall of the first through hole, the antifouling layer defines an airflow channel, the diameter of the airflow channel gradually decreases along the direction from the air inlet end to the air outlet end, so that condensate on the inner wall of the airflow channel can move towards the air inlet end when the guide pipe is in a horizontal state.

10. An anti-fouling air guide member comprising:

the guide pipe is axially provided with an air inlet end and an air outlet end along the axial direction of the guide pipe, the guide pipe is axially provided with an air flow channel, the guide pipe is made of hydrophobic or oleophobic materials, the diameter of the air flow channel gradually decreases from the air inlet end to the air outlet end, and condensate on the inner wall of the air flow channel can move towards the air inlet end when the guide pipe is in a horizontal state.

11. Electronic cigarette, its characterized in that includes:

the cigarette comprises a cigarette stem, a cigarette holder and a cigarette holder, wherein the cigarette stem defines an atomization cavity, and a heating component is arranged in the atomization cavity to form smoke;

a mouthpiece comprising an anti-fouling air guide element as claimed in any of claims 1 to 10, the air flow passage of the anti-fouling air guide element being in communication with the atomising chamber so that the smoke in the atomising chamber can be expelled through the air flow passage and the condensate can flow back into the atomising chamber.

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