Electronic cigarette

Abstract

The application discloses an electronic cigarette, which comprises an atomization cabin, an atomization core, an inner sleeve, an air inlet assembly and an air outlet assembly. The atomization cabin is provided with a containing cavity and an opening communicating with the containing cavity; the atomization core is located in the containing cavity and communicates with the opening; the inner sleeve is provided with an inner cavity, the atomization core is at least partially located in the inner cavity, and a gap is formed between the outer wall surface of the atomization core located in the inner cavity and the inner wall surface of the inner cavity; the air inlet assembly and the air outlet assembly can both communicate the outer world with the inner cavity. In the application, the inner sleeve is arranged on the atomization core, and the air inlet assembly and the air outlet assembly communicating with the outer world are arranged on the inner sleeve, so that the atomization core can be cooled by the air from the outer world, and thus the temperature of the smoke reaching the mouth of a user is moderate, and the mouth of the user is prevented from being dry. Meanwhile, the air convection can also blow the part of the electronic cigarette held by the user, the hands of the user are prevented from sweating, and the experience of the user is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic cigarettes, and particularly relates to an inner sleeve for an electronic cigarette atomizer. BACKGROUND

[0002] An electronic cigarette is used by heating a heating wire to generate smoke from tobacco oil in an atomizer, and the generated smoke is used by a user. Since a high temperature is required to heat the tobacco oil, the generated smoke has a high temperature, which easily causes the mouth of the user to dry. On the other hand, the high temperature of the smoke easily causes the surface of the electronic cigarette to have a high temperature, which easily causes the hand of the user holding the electronic cigarette to sweat, and reduces the experience of the user. SUMMARY

[0003] An object of the present application is to provide a new technical solution of an electronic cigarette to solve the above problems, so that the temperature of the smoke reaching the mouth of the user is moderate, and the mouth of the user is prevented from drying. At the same time, due to the convection of air, the part of the hand holding the electronic cigarette can be blown, the hand of the user is prevented from sweating, and the experience of the user is improved.

[0004] According to a first aspect of the present application, an electronic cigarette is provided, which comprises an atomization cabin, an atomizer, an inner sleeve, an air inlet assembly and an air outlet assembly. The atomization cabin has a containing cavity and an opening communicating with the containing cavity. The atomizer is located in the containing cavity and communicates with the opening. The inner sleeve is located in the containing cavity, and the inner sleeve has an inner cavity. The atomizer is at least partially located in the inner cavity, and a gap is formed between the outer wall surface of the atomizer located in the inner cavity and the inner wall surface of the inner cavity. The air inlet assembly penetrates the side wall of the atomization cabin and the side wall of the inner cavity, so that external air can enter the inner cavity through the air inlet assembly. The air outlet assembly penetrates the side wall of the atomization cabin and the side wall of the inner cavity, so that the air in the inner cavity can overflow to the outside through the air outlet assembly.

[0005] In an embodiment, the air inlet assembly comprises an air inlet pipe, a flow guide pipe and a fan. The air inlet pipe is fixedly connected to the atomization cabin and the inner sleeve. One end of the air inlet pipe communicates with the outside, and the other end of the air inlet pipe communicates with the inner cavity. The flow guide pipe and the fan are located in the air inlet pipe. The flow guide pipe has a tapered structure. The side of the flow guide pipe with a larger opening faces the outside, and the side of the flow guide pipe with a smaller opening communicates with the air inlet of the fan. The air outlet of the fan communicates with the inner cavity.

[0006] In an embodiment, the air inlet assembly further comprises a purification assembly; the purification assembly comprises a circular tube and a filter; the circular tube is located in the air inlet pipe and fixedly connected with the air inlet pipe; the filter is embedded in the circular tube; one end of the circular tube is in communication with the outside world, and the other end of the circular tube is in communication with the larger opening end of the flow guide pipe.

[0007] In an embodiment, the purification assembly further comprises a filter screen, which is fixedly arranged at one end of the circular tube close to the flow guide pipe.

[0008] In an embodiment, the purification assembly further comprises two blocking strips, which are uniformly distributed on the outer peripheral wall of the circular tube and fixedly connected with the outer peripheral wall of the circular tube; one end of each of the two blocking strips is flush with one end of the circular tube close to the outside world, and the other end of each of the two blocking strips extends along the axial direction of the circular tube.

[0009] In an embodiment, the air inlet assembly further comprises a fixing rod, one end of the fixing rod is fixedly connected with one end of the circular tube, and the other end of the fixing rod is fixedly connected with the fan.

[0010] In an embodiment, the air inlet assembly further comprises a rotary knob switch, which is arranged at one end of the circular tube close to the outside world and used for controlling the communication between the circular tube and the outside world.

[0011] In an embodiment, the air outlet assembly comprises an air outlet pipe and a sealing plug; the air outlet pipe is fixedly connected with the atomization cabin and the inner sleeve, one end of the air outlet pipe is in communication with the inner cavity, and the other end of the air outlet pipe is in communication with the outside world; the sealing plug is detachably fixed at one end of the air outlet pipe close to the outside world.

[0012] In an embodiment, the air outlet pipe assembly further comprises a flexible connecting piece; one end of the connecting piece is fixedly connected with the outer wall of the atomization cabin, and the other end of the connecting piece is fixedly connected with the sealing plug.

[0013] In an embodiment, the electronic cigarette further comprises a refilling device; the atomization core is provided with an inner frame; the refilling device comprises a refilling pipe; one end of the refilling pipe extends into the inner frame, the other end of the refilling pipe is in communication with the outside world, and the distance between the end of the refilling pipe in communication with the outside world and the bottom wall of the atomization cabin is greater than the distance between the end of the refilling pipe extending into the inner frame and the bottom wall.

[0014] In an embodiment, the refilling device further comprises two bearing seats, a transmission rod and a guide piece; the two bearing seats are respectively fixedly arranged at the two ends of the refilling pipe; the transmission rod is connected with the two bearing seats, and the transmission rod is rotatable; the guide piece is helically arranged on the transmission rod.

[0015] In an embodiment, the feeding device further comprises a control rod, which is fixed to the transmission rod near the outer end, and the control rod can drive the transmission rod to rotate.

[0016] In an embodiment, the feeding device further comprises a sealing plug, which is detachably fixed to the feeding pipe near the outer end.

[0017] The electronic cigarette provided in the application comprises an atomization cabin, an atomization core, an inner sleeve, an air inlet assembly and an air outlet assembly. The atomization cabin has a containing cavity and an opening communicating with the containing cavity; the atomization core is located in the containing cavity and communicates with the opening; the inner sleeve is located in the containing cavity, the inner sleeve has an inner cavity, the atomization core is at least partially located in the inner cavity, and there is a gap between the outer wall surface of the atomization core located in the inner cavity and the inner wall surface of the inner cavity; the air inlet assembly penetrates the side wall of the atomization cabin and the side wall of the inner cavity, so that external air can enter the inner cavity through the air inlet assembly; and the air outlet assembly penetrates the side wall of the atomization cabin and the side wall of the inner cavity, so that the air in the inner cavity can overflow to the outside through the air outlet assembly.

[0018] In the application, the inner sleeve is arranged on the atomization core, and the air inlet assembly and the air outlet assembly communicating with the outside are arranged on the inner sleeve, so that the atomization core can be cooled by external air, and thus the temperature of the smoke reaching the mouth of the user can be moderate, and the mouth of the user can be prevented from drying. At the same time, the part holding the electronic cigarette can be blown by the convection of air, the hands of the user can be prevented from sweating, and the experience of the user can be improved.

[0019] Other features and advantages of the application will become apparent from the following detailed description of exemplary embodiments thereof, taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0020] The accompanying drawings incorporated in and forming a part of the specification, illustrate embodiments of the application and, together with the description, serve to explain the principles of the application.

[0021] Figure 1 The electronic cigarette atomization cabin overall structure provided in the embodiment of the application is shown in the figure.

[0022] Figure 2 The electronic cigarette air inlet assembly structure provided in the embodiment of the application is shown in the figure.

[0023] Figure 3 The electronic cigarette air outlet assembly structure provided in the embodiment of the application is shown in the figure.

[0024] Figure 4 The electronic cigarette feeding assembly structure provided in the embodiment of the application is shown in the figure.

[0025] The following are marked in the figure: 100 - atomization cabin; 110 - containing cavity; 200 - atomization core; 210 - inner frame; 300 - inner sleeve; 310 - inner cavity; 400 - air inlet assembly; 410 - air inlet pipe; 420 - flow guide pipe; 430 - fan; 440 - purification assembly; 441 - circular pipe; 442 - filter sheet; 443 - filter screen; 444 - connecting ring; 445 - blocking strip; 450 - fixing rod; 460 - knob switch; 500 - air outlet assembly; 510 - air outlet pipe; 520 - sealing plug; 530 - connecting piece; 600 - feeding device; 610 - feeding pipe; 620 - bearing seat; 630 - transmission rod; 640 - guide sheet; 650 - control rod; 660 - sealing plug; 700 - incense bead. DETAILED DESCRIPTION

[0026] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of the components and steps set forth in the examples, the numerical expressions, and the numerical values are not limiting to the scope of the present application unless otherwise specifically stated.

[0027] The following description of at least one example embodiment is merely illustrative in nature and is in no way limiting to the scope of the application or its applications or uses.

[0028] Techniques, methods, and devices known to those of ordinary skill in the relevant art can not be discussed in detail herein, but should be considered as part of the specification, where appropriate.

[0029] In all of the examples shown and discussed herein, any specific values should be interpreted as merely illustrative and not as a limitation. Thus, other examples of the exemplary embodiments can have different values.

[0030] As Figure 1 and Figure 2As shown in the embodiment of this application, the electronic cigarette includes an atomizing chamber 100, an atomizing core 200, an inner sleeve 300, an air inlet assembly 400, and an exhaust assembly 500. The atomizing chamber 100 has a receiving cavity 110 and an opening communicating with the receiving cavity 110. The atomizing core 200 is located in the receiving cavity 110 and communicates with the opening. The inner sleeve 300 is located in the receiving cavity 110 and has an inner cavity 310, with the atomizing core 200 at least partially located in the inner cavity 310. The atomizing core 200 located in the inner cavity 310 has a gap between its outer wall and the inner wall of the inner cavity 310; the air inlet assembly 400 penetrates the side wall of the atomizing chamber 100 and the side wall of the inner cavity 310, so that outside air can enter the inner cavity 310 through the air inlet assembly 400; the exhaust assembly 500 penetrates the side wall of the atomizing chamber 100 and the side wall of the inner cavity 310, so that air in the inner cavity 310 can overflow to the outside through the exhaust assembly 500.

[0031] In this embodiment, an inner sleeve 300 is provided at the atomizing core 200, and there is a gap between the outer wall of the atomizing core 200 and the side wall of the inner cavity 310. The inner sleeve 300 is provided with an air inlet component 400 communicating with the outside, so outside air can enter the inner cavity 310 through the air inlet component 400. Furthermore, since there is a gap between the outer wall of the atomizing core 200 and the side wall of the inner cavity 310, the air entering the inner cavity 310 can circulate around the outer wall of the atomizing core 200 within the inner cavity 310. An exhaust component 500 is also provided between the inner sleeve 300 and the outside, so that the air in the inner cavity 310 can be exhausted to the outside. In this way, air convection can be formed in the inner cavity 310, continuously cooling the atomizing core 200, thereby ensuring that the temperature of the vapor reaching the user's mouth is moderate and preventing the user's mouth from drying out. At the same time, due to the air convection, the part of the hand holding the electronic cigarette can also be ventilated, preventing the user's hands from sweating and improving the user's experience.

[0032] Those skilled in the art will understand that, in order to ensure the effect of air convection, in this embodiment, the air inlet assembly 400 and the air outlet assembly 500 can be arranged on opposite sides of the inner cavity 310, and the distance between the air inlet assembly 400 and the bottom wall of the inner cavity 310 is greater than the distance between the air outlet assembly 500 and the bottom wall of the inner cavity 310. In other words, in the length direction of the electronic cigarette ( Figure 1 In the vertical direction, the positions of the air inlet component 400 and the air outlet component 500 are staggered, and the air inlet component 400 is higher than the air outlet component 500. As a result, the air entering through the air inlet component 400 has a longer path through the surface of the cotton core before being discharged from the air outlet component 500. The contact area between the air and the cotton core is increased, which can better remove heat and cool down the air.

[0033] In one embodiment, the air inlet assembly 400 comprises an air inlet pipe 410, a flow guide pipe 420 and a fan 430; the air inlet pipe 410 is fixedly connected to the atomization cabin 100 and the inner sleeve 300, and one end of the air inlet pipe 410 is in communication with the outside world and the other end is in communication with the inner cavity 310; the flow guide pipe 420 and the fan 430 are located in the air inlet pipe 410; the flow guide pipe 420 is a conical structure, the side with a larger opening of the flow guide pipe 420 faces the outside world, the side with a smaller opening of the flow guide pipe 420 is in communication with the air inlet of the fan 430, and the air outlet of the fan 430 is in communication with the inner cavity 310.

[0034] In the embodiment, the fan 430 is arranged to actively extract air from the outside world, so as to form air convection in the inner cavity 310, thereby further ensuring the cooling effect of the air in the inner cavity 310 on the atomization core 200. Those skilled in the art can understand that the interface of the fan 430 is small, so the end with a larger diameter of the flow guide pipe 420 is arranged to face the outside world, and the end with a smaller diameter of the flow guide pipe 420 is connected to the fan 430, thereby facilitating the fan 430 to extract air from the outside world. In addition, the flow guide pipe 420 is a conical structure, and the end with a larger diameter faces the outside world. After the air enters the flow guide pipe from the end with a larger diameter, the flow rate of the air increases as the diameter of the flow guide pipe decreases, thereby enabling the fan to quickly send the air into the inner cavity.

[0035] In one embodiment, the air inlet assembly 400 further comprises a purification assembly 440; the purification assembly 440 comprises a circular pipe 441 and a filter sheet 442; the circular pipe 441 is located in the air inlet pipe 410 and is fixedly connected to the air inlet pipe 410; the filter sheet 442 is embedded in the circular pipe 441; one end of the circular pipe 441 is in communication with the outside world, and the other end of the circular pipe 441 is in communication with the side with a larger opening of the flow guide pipe 420. Those skilled in the art can understand that the side with a larger opening of the flow guide pipe 420 can be sealingly connected to the circular pipe 441, thereby improving the efficiency of the fan 430 in extracting air. In the embodiment, the filter sheet 442 is arranged in the circular pipe 441 to filter dust in the air entering the fan 430, thereby ensuring the cleanliness of the air. Those skilled in the art can also understand that the atomization core 200 is also provided with micropores to facilitate air entering the atomization core 200 to react with the tobacco tar in the atomization core 200, thereby generating smoke for a user to use. In the embodiment, the filter sheet is arranged to make the air entering the atomization core 200 clean and clean, thereby reducing impurities in the smoke generated in the atomization core 200 and improving the experience of the user. In the embodiment, the filter sheet 442 can be filter cotton.

[0036] In an embodiment, the purification assembly 440 further comprises a filter screen 443 fixedly arranged at one end of the circular tube 441 close to the flow guide pipe 420. In the embodiment, the filter screen 443 is arranged to prevent large particles from entering the fan 430 and damaging the fan 430. For example, particles generated by the breaking of the filter sheet 442 in the circular tube 441. It can be understood by those skilled in the art that a connecting ring 444 is further arranged between the filter screen 443 and the wall of the circular tube 441, the connecting ring 444 is fixed to the inner wall of the circular tube 441, and the filter screen 443 is fixed to the connecting ring 444, so that the filter screen 443 is conveniently installed. In the embodiment, the flow guide pipe 420 is further connected to the circular tube 441 through the connecting ring 444, and specifically, the flow guide pipe 420 is fixedly connected to the side of the connecting ring close to the flow guide pipe 420.

[0037] In an embodiment, the purification assembly 440 further comprises two position-limiting strips 445, which are uniformly distributed on the outer circumferential wall of the circular tube 441 and fixedly connected to the outer circumferential wall of the circular tube 441. One end of each of the two position-limiting strips 445 is flush with one end of the circular tube 441 close to the outside, and the other end extends along the axial direction of the circular tube 441. In the embodiment, the position-limiting strips 445 are arranged to prevent the circular tube 441 from moving or rotating in the air inlet pipe 410. It can be understood by those skilled in the art that the position-limiting strips 445 are elastic. When the position-limiting strips 445 are arranged between the circular tube 441 and the air inlet pipe 410, the position-limiting strips 445 are elastically deformed under pressure, so that the position-limiting strips 445 apply pressure to the circular tube 441 and the air inlet pipe 410, thereby increasing the frictional force of the relative movement between the circular tube 441 and the air inlet pipe 410, and preventing the circular tube 441 from rotating or moving in the air inlet pipe 410.

[0038] In an embodiment, the air inlet assembly 400 further comprises a fixing rod 450, one end of the fixing rod 450 is fixedly connected to one end of the circular tube 441 close to the flow guide pipe, and the other end of the fixing rod 450 is fixedly connected to the fan 430. In this way, the fan 430 and the circular tube 441 are integrated, so that when the air inlet assembly 400 needs to be replaced, the air inlet pipe 410 cannot be easily disassembled, and therefore the air inlet assembly 400 can be partially replaced. The filter core, the filter screen 443, the flow guide pipe 420, and the fan 430 connected to the circular tube 441 can be taken out as a whole, so that the whole air inlet assembly 400 can be replaced. In this way, the electronic cigarette is conveniently maintained.

[0039] In one embodiment, the air inlet assembly 400 further comprises a knob switch 460, which is arranged on the circular tube 441 near the end close to the outside world, and is used to control the communication between the circular tube 441 and the outside world. In the embodiment of the present application, when the electronic cigarette is not used, the knob switch 460 can be closed to avoid impurities in the air entering the circular tube 441, thereby reducing the service life of the filter sheet 442. When the electronic cigarette needs to be used, the knob switch 460 is only needed to be opened to make the circular tube 441 communicate with the outside world, and the operation is simple.

[0040] As shown in Figure 1 and Figure 3 In one embodiment, the air outlet assembly 500 comprises an air outlet tube 510 and a sealing plug 520; the air outlet tube 510 is fixedly connected to the atomization cabin 100 and the inner sleeve 300, one end of the air outlet tube 510 communicates with the inner cavity 310, and the other end of the air outlet tube 510 communicates with the outside world; and the sealing plug 520 is detachably fixed on the end of the air outlet tube 510 close to the outside world. In the embodiment, the sealing plug 520 is arranged on the air outlet tube, and when the electronic cigarette is not used, the sealing plug 520 can be used to close the air outlet tube 510 to avoid the outside air entering the inner cavity 310 through the air outlet tube 510, thereby affecting the purity of the tobacco tar in the atomization core 200.

[0041] In one embodiment, the air outlet tube 510 assembly further comprises a flexible connecting piece 530; one end of the connecting piece 530 is fixedly connected to the outer wall of the atomization cabin 100, and the other end of the connecting piece 530 is fixedly connected to the sealing plug 520. In this way, when the sealing plug 520 is taken out, the sealing plug 520 can be prevented from falling off, and the sealing plug 520 can be used to seal the air inlet tube 410 at any time when the electronic cigarette is not used.

[0042] As shown in Figure 1 and Figure 4 In one embodiment, the electronic cigarette further comprises a refilling device 600; the atomization core 200 is provided with an inner frame 210; the refilling device 600 comprises a refilling tube 610; one end of the refilling tube 610 extends into the inner frame 210, the other end of the refilling tube 610 communicates with the outside world, and the distance between the end of the refilling tube 610 communicating with the outside world and the bottom wall of the atomization cabin 100 is greater than the distance between the end of the refilling tube 610 extending into the inner frame 210 and the bottom wall. The purpose of such an arrangement is to use the gravity of the incense beads 700 to add the incense beads 700 into the inner frame 210 through the refilling tube 610.

[0043] It is obvious that the inner frame 210 can be provided with a fine mesh, the mesh hole of which is smaller than the diameter of the incense beads 700, so as to prevent the incense beads 700 in the inner frame 210 from falling out of the mesh hole.

[0044] In the embodiment, the inner frame 210 is provided with a feeding pipe 610, so that the user can add the incense beads 700 into the inner frame 210 through the feeding pipe 610. It is obvious that the user can add incense beads 700 with different fragrances into the inner frame 210 according to personal preference, and the embodiment does not make specific requirements.

[0045] In one embodiment, the feeding device 600 further comprises two bearing seats 620, a transmission rod 630 and a guide piece 640. The two bearing seats 620 are respectively fixed on the two ends of the feeding pipe 610. The transmission rod 630 is connected to the two bearing seats 620, and the transmission rod 630 can rotate. The guide piece 640 is spirally arranged on the transmission rod 630. The transmission shaft and the guide piece 640 can prevent the incense beads 700 from directly falling into the inner frame 210 and breaking. On the other hand, more incense beads 700 can be placed in the feeding pipe at one time, and when the incense beads 700 are needed, the transmission rod 630 is rotated to make the incense beads 700 fall into the inner frame 210 along the guide piece 640, achieving the purpose of multiple storage and single use, so as to improve the experience of the user.

[0046] In one embodiment, the feeding device 600 further comprises a control rod 650, which is fixed to one end of the transmission rod 630 close to the outside, and the control rod 650 can drive the transmission rod 630 to rotate. The control rod 650 can facilitate the rotation of the transmission rod 630.

[0047] In one embodiment, the feeding device 600 further comprises a sealing plug 660, which is detachably fixed to one end of the feeding pipe close to the outside. The sealing plug 660 has the purposes of preventing external air from entering the atomizing core 200 and preventing the incense beads 700 in the feeding pipe 610 from falling out. It is obvious that the control rod 650 can be a folding or telescopic rod. When the control rod 650 is needed for control, the control rod 650 can be extended to the feeding pipe, facilitating rotation; when it is not needed, the control rod 650 can be retracted into the feeding pipe, facilitating the sealing of the sealing plug 660.

[0048] While certain embodiments of the application have been described by way of example, it should be appreciated that those skilled in the art can certainly make modifications to the described embodiments without departing from the scope and spirit of the application. The scope of the application is defined in the accompanying claims.

Claims

1. An electronic cigarette, characterized in that, Includes atomizing chamber, atomizing core, inner sleeve, air intake assembly, and air exhaust assembly; The atomizing chamber has a receiving cavity and an opening communicating with the receiving cavity; The atomizing core is located in the receiving cavity; The inner sleeve is located in the receiving cavity, the inner sleeve has an inner cavity, the atomizing core is at least partially located in the inner cavity, and there is a gap between the outer wall surface of the atomizing core located in the inner cavity and the inner wall surface of the inner cavity; The air intake assembly penetrates the side wall of the atomizing chamber and the side wall of the inner cavity, so that outside air can enter the inner cavity through the air intake assembly; The exhaust assembly penetrates the side wall of the atomizing chamber and the side wall of the inner cavity, so that the air in the inner cavity can escape to the outside through the exhaust assembly. The air intake assembly includes an air intake duct, a guide duct, and a fan; The air inlet pipe is fixedly connected to the atomizing chamber and the inner sleeve, with one end of the air inlet pipe communicating with the outside and the other end communicating with the inner cavity; Both the guide pipe and the fan are located inside the air inlet pipe; The guide pipe has a tapered structure, with the side of the guide pipe with a larger opening facing outwards, the side of the guide pipe with a smaller opening connected to the air inlet of the fan, and the air outlet of the fan connected to the inner cavity. The air intake assembly also includes a purification assembly; The purification component includes a cylindrical tube and a filter element; The circular tube is located in the air inlet pipe and is fixedly connected to the air inlet pipe; The filter element is embedded in the circular tube; One end of the circular tube is connected to the outside, and the other end of the circular tube is connected to the end of the guide tube with the larger opening. The electronic cigarette also includes a feeding device; The atomizing core is provided with an inner frame; The feeding device includes a feeding pipe; One end of the feeding tube extends into the inner frame, and the other end of the feeding tube communicates with the outside. The distance between the end of the feeding tube that communicates with the outside and the bottom wall of the atomizing chamber is greater than the distance between the end of the feeding tube that extends into the inner frame and the bottom wall. The feeding device also includes two bearing seats, a transmission rod, and a guide plate; The two bearing seats are respectively fixedly installed at both ends of the feeding pipe; The transmission rod is connected to the two bearing seats and is rotatable. The guide plate is spirally disposed on the transmission rod; The feeding device also includes a control lever, which is fixed to the end of the transmission rod near the outside and can drive the transmission rod to rotate. The control lever is a folding or telescopic thin rod. When the control lever is needed for operation, it is extended out of the feeding tube; when it is not needed, it is retracted into the feeding tube.

2. The electronic cigarette according to claim 1, characterized in that, The purification component also includes a filter screen, which is fixedly disposed at one end of the circular tube near the guide tube.

3. The electronic cigarette according to claim 1, characterized in that, The purification component also includes two blocking strips, which are evenly distributed on the outer peripheral wall of the circular tube and fixedly connected to the outer peripheral wall of the circular tube. One end of each blocking strip is flush with the end of the circular tube closest to the outside, and the other end extends along the axial direction of the circular tube.

4. The electronic cigarette according to claim 1, characterized in that, The air inlet assembly also includes a fixing rod, one end of which is fixedly connected to the end of the circular tube near the guide pipe, and the other end of which is fixedly connected to the fan.

5. The electronic cigarette according to claim 1, characterized in that, The exhaust assembly includes an exhaust pipe and a sealing plug; The air outlet pipe is fixedly connected to the atomizing chamber and the inner sleeve, with one end of the air outlet pipe communicating with the inner cavity and the other end of the air outlet pipe communicating with the outside. The sealing plug is detachably fixed to the end of the air outlet pipe closest to the outside.

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