ELECTRONIC CIGARETTE

An electronic cigarette includes a housing. The housing has an accommodating space therein. A cartridge assembly, a circuit board and a switch are provided in the accommodating space. The electronic cigarette is compact in structure and easy to carry. The electronic cigarette solves the problem that the mouthpiece is easily dirty and unhygienic. The electronic cigarette is provided with a liquid chamber which can be refilled with the liquid. The electronic cigarette is reusable and environmentally friendly. The design of the refilling structure is ingenious and reasonable and is easy for operation.

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Description
BACKGROUND OF THE INVENTION 1. Field of the Invention

The present invention relates to an electronic cigarette, and more particularly to a refillable push-pull electronic cigarette.

2. Description of the Prior Art

An electronic cigarette or e-cigarette is a handheld electronic device simulates the feeling of tobacco smoking. E-cigarettes do not release tar, nicotine and second-hand smoke that are harmful to the human body. Therefore, it can improve the success rate of nicotine replacement therapy to help people stop smoking.

However, most of the electronic cigarettes in the prior art have a complicated structure. The mouthpiece is exposed to the outside and occupies a certain space. The mouthpiece tends to become dirty. As a result, the mouthpiece is unhygienic. The electronic cigarette is large in size, and it is not easy to carry. Most electronic cigarettes cannot be refilled with the liquid, only one-time use, which leads to a waste and is not beneficial for environmental protection. Some electronic cigarettes may have the function of refilling the liquid, but the structure is complicated and is not easy to operate, affecting the user experience.

Accordingly, the inventor of the present invention has devoted himself based on his many years of practical experiences to solve these problems.

SUMMARY OF THE INVENTION

In view of the shortcomings of the prior art, the primary object of the present invention is to provide a refillable push-pull electronic cigarette which is compact in structure and easy to carry. The push-pull electronic cigarette solves the problem that the mouthpiece is easily dirty and unhygienic. The electronic cigarette is provided with a liquid chamber which can be refilled with the liquid. The electronic cigarette is reusable and environmentally friendly. The design of the refilling structure is ingenious and reasonable and is easy for operation.

In order to achieve the aforesaid object, the electronic cigarette of the present invention comprises a housing. The housing has an accommodating space therein. A cartridge assembly, a circuit board and a switch are provided in the accommodating space. The housing is provided with a charging interface. The cartridge assembly, the switch and the charging interface are electrically connected to the circuit board.

The circuit board is mounted in the housing. The cartridge assembly is detachably mounted above the circuit board. A rear cover of the housing is provided with a button assembly which can be moved up and down. The cartridge assembly is linked by the button assembly to move up and down.

The button assembly includes a button and a first link portion. The cartridge assembly includes a second link portion. The first link portion is linked with the second link portion. The button is linked with the switch. When the button is pushed upward, an upper end of the cartridge assembly is exposed out of an upper cover of the housing, and the switch is linked by the button to be turned on. When the button is pushed downward, the second link portion is linked by the first link portion to move downward, the cartridge assembly is hidden in the upper cover, and the switch is linked by the button to be turned off. When the button is pushed inwardly by an external force, the second link portion is released from the first link portion, the cartridge assembly and the button assembly are separated from each other, and the cartridge assembly can be detached from the housing.

The cartridge assembly includes a liquid chamber, a mouthpiece, and a cap detachably mounted on the liquid chamber. The mouthpiece is exposed above the liquid chamber. The liquid chamber is provided with a liquid filling hole. The cap detachably blocks the liquid filling hole.

Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical solution that the push-pull design of the cartridge assembly is realized through the linkage structure of the button and the cartridge assembly, so that the cartridge assembly can be hidden inside, thereby solving the problem that the mouthpiece is easily dirty and unhygienic. The structure is clever and reasonable and more compact and smooth for operation and easy to carry. The liquid chamber is provided with the detachable cap to realize the refilling function of the electronic cigarette. The electronic cigarette is reusable and environmentally friendly. The design of the refilling structure is simple, ingenious and reasonable, and is easy for operation.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view in accordance with an embodiment of the present invention;

FIG. 2 is another perspective view in accordance with the embodiment of the present invention;

FIG. 3 is an exploded view in accordance with the embodiment of the present invention;

FIG. 4 is another exploded view in accordance with the embodiment of the present invention;

FIG. 5 is a further exploded view in accordance with the embodiment of the present invention;

FIG. 6 is a sectional view in accordance with the embodiment of the present invention; and

FIG. 7 is another sectional view in accordance with the embodiment of the present invention.

 DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Embodiments of the present invention will now be described, by way of example only, with reference to the accompanying drawings.

Please refer to FIG. 1 to FIG. 7. The electronic cigarette in accordance with an embodiment of the present invention comprises a housing. The housing includes an upper cover 10, a lower cover 20, a front cover 30, and a rear cover 40. The upper cover 10, the lower cover 20, the front cover 30 and the rear cover 40 are connected to form an accommodating space therein. A cartridge assembly 50, a circuit board 60 and a switch are provided in the accommodating space. The rear cover 40 is provided with a charging interface 90. Preferably, the charging interface 90 is a USB interface. The cartridge assembly 50, the switch and the charging interface 90 are all electrically connected to the circuit board 60. The circuit board 60 is mounted on the lower cover 20. The cartridge assembly 50 is detachably mounted above the circuit board 60. The upper portion of the rear cover 40 and the upper cover 10 are adapted to cover the cartridge assembly 50. The front cover 30 is provided with a button assembly 70 which can be moved up and down. The button assembly 70 includes a button 71. The button assembly 70 is linked with the cartridge assembly 50. The upper cover 10 has a stroke guide groove 11 for the button 71 to move up and down. The button 71 has a button main body 73 which is fitted in the stroke guide groove 11. The rear cover 40 has an opening 41 for mounting the button assembly 70. The button assembly 70 is mounted in the opening 41.

The button assembly 70 includes a button 71 and a first link portion 72. The cartridge assembly 50 includes a second link portion 51. The first link portion 72 is linked with the second link portion 51. The button 71 is linked with the switch. When the button 71 is pushed upward, (In this embodiment, the upper cover 10 is provided with a limit portion. The upper end of the button 71 is pushed to the limit portion, and the cartridge assembly 50 exposes about two thirds thereof outside the upper cover 10.) The first link portion 72 drives the second link portion 51 to move upward. The upper end of the cartridge assembly 50 is exposed above the upper cover 10. The switch is linked by the button 71 to be turned on. At this moment, the cartridge assembly 50 is exposed so as to facilitate the smoking action. When the button 71 is pushed downward, the second link portion 51 is linked by the first link portion 72 to move downward. The cartridge assembly 50 is hidden in the upper cover 10. The switch is linked by the button 71 to be turned off. When the button 71 is pushed inwardly by an external force, the cartridge assembly 50 and the button assembly 70 are separated from each other. The cartridge assembly 50 can be detached from the housing for subsequent refilling operations. The cartridge assembly 50 further includes a liquid chamber 52, a mouthpiece 53, and a cap 54 detachably mounted on the liquid chamber 52. The mouthpiece 53 is exposed above the liquid chamber 52. The liquid chamber 52 is provided with a liquid filling hole 55. The cap 54 detachably blocks the liquid filling hole 55. When the cartridge assembly 50 is removed, an external force may be applied to the cap 54 to pull up the cap 54 to a certain distance, and then the cap 54 is rotated until the cap 54 is detached from the liquid chamber 52. At this time, the liquid filling hole 55 is exposed for the liquid chamber 52 to be refilled with the liquid.

The push-pull design of the button 71 is linked with the cartridge assembly 50 to achieve the hidden design of the cartridge assembly 50. The overall structure is ingenious and reasonable. The structure is more compact and easy to carry. The cartridge assembly 50 is detachably provided with the liquid chamber 52 and the cap 54 to realize the refilling function of the electronic cigarette. Meanwhile, the tightness between the cap 54 and the liquid chamber 52 is good to prevent the liquid from leaking. The disassembly and replacement are easy and convenient.

A support assembly 80 is provided below the cartridge assembly 50. The support assembly 80 movably abuts against the lower end of the cartridge assembly 50. The bottom of the support assembly 80 abuts against the front cover 30. The support assembly 80 is connected with the button 71 of the button assembly 70. When the button 71 is pushed upward, the support assembly 80 is linked to move upward. When the button 71 is pushed downward, the support assembly 80 is linked to move downward.

The button 71 has a first positioning portion 711 extending outwardly from a lower end thereof. Correspondingly, the support assembly 80 has a second positioning portion 81. The first positioning portion 711 is fitted on the second positioning portion 81. The first positioning portion 711 has a positioning protrusion 712. Correspondingly, the second positioning portion 81 has a positioning recess 82. The positioning protrusion 712 is fitted under the positioning recess 82.

The first link portion 72 extends outwardly from one side of the button 71. The outer sidewall of the liquid chamber 52 is recessed to form the second link portion 51. The first link portion 72 is fitted in the second link portion 51. The first link portion 72 is symmetrically provided with positioning buckles 721. Correspondingly, the second link portion 51 is provided with positioning slots 511. The positioning buckles 721 are fitted in the positioning slots 511.

In addition, in this embodiment, buffer springs 83 are symmetrically provided above the support assembly 80. Correspondingly, the bottom end of the liquid chamber 52 is symmetrically provided with positioning posts 56. The positioning posts 56 are fitted on the corresponding buffer springs 83. The support assembly 80 is symmetrically provided with positioning pillars 84, correspondingly, the bottom end of the liquid chamber 52 is symmetrically provided with positioning holes 57. The positioning pillars 84 are fitted in the corresponding positioning holes 57. A positioning hole 84 is symmetrically disposed on the support assembly 80. Correspondingly, a positioning hole 57 is provided symmetrically at a bottom end of the liquid chamber 52. The positioning hole 84 fits into the corresponding positioning hole 57.

Although particular embodiments of the present invention have been described in detail for purposes of illustration, various modifications and enhancements may be made without departing from the spirit and scope of the present invention. Accordingly, the present invention is not to be limited except as by the appended claims.

Claims

1. An electronic cigarette, comprising a housing, the housing having an accommodating space therein, a cartridge assembly, a circuit board and a switch being provided in the accommodating space; a rear cover of the housing being provided with a charging interface, the cartridge assembly, the switch and the charging interface being electrically connected to the circuit board;

the circuit board being mounted in the housing, the cartridge assembly being detachably mounted above the circuit board; the housing being provided with a button assembly which can be moved up and down, the cartridge assembly being linked by the button assembly to move up and down;
the button assembly including a button and a first link portion, the cartridge assembly including a second link portion, the first link portion being linked with the second link portion, the button being linked with the switch;
wherein when the button is pushed upward, an upper end of the cartridge assembly is exposed out of an upper cover of the housing, the switch is linked by the button to be turned on; when the button is pushed downward, the second link portion is linked by the first link portion to move downward, the cartridge assembly is hidden in the upper cover, the switch is linked by the button to be turned off; when the button is pushed inwardly by an external force, the second link portion is released from the first link portion, the cartridge assembly and the button assembly are separated from each other, the cartridge assembly can be detached from the housing;
the cartridge assembly including a liquid chamber, a mouthpiece and a cap detachably mounted on the liquid chamber, the mouthpiece being exposed above the liquid chamber, the liquid chamber being provided with a liquid filling hole, the cap detachably blocking the liquid filling hole.

2. The electronic cigarette as claimed in claim 1, wherein a support assembly is provided below the cartridge assembly, the support assembly movably abuts against a lower end of the cartridge assembly, the support assembly is mounted on the housing; the support assembly is linked with the button of the button assembly; when the button is pushed upward, the support assembly is linked by the button to move upward; when the button is pushed downward, the support assembly is linked by the button to move downward.

3. The electronic cigarette as claimed in claim 2, wherein the button has a first positioning portion extending outwardly from a lower end thereof, the support assembly has a second positioning portion, and the first positioning portion is fitted on the second positioning portion.

4. The electronic cigarette as claimed in claim 3, wherein the first positioning portion has a positioning protrusion, the second positioning portion has a positioning recess, and the positioning protrusion is fitted under the positioning recess.

5. The electronic cigarette as claimed in claim 1, wherein the first link portion extends outwardly from one side of the button, an outer sidewall of the liquid chamber is recessed to form the second link portion, and the first link portion is fitted in the second link portion.

6. The electronic cigarette as claimed in claim 5, wherein the first link portion is symmetrically provided with positioning buckles, the second link portion is provided with positioning slots, and the positioning buckles are fitted in the positioning slots.

7. The electronic cigarette as claimed in claim 1, wherein the housing has a stroke guide groove for the button to move up and down, the button has a button main body, the button main body is fitted in the stroke guide groove, the housing has an opening for mounting the button assembly, and the button assembly is installed in the opening.

8. The electronic cigarette as claimed in claim 2, wherein buffer springs are symmetrically provided above the support assembly, a bottom end of the liquid chamber is symmetrically provided with positioning posts, the positioning posts are fitted on the corresponding buffer springs; the support assembly is symmetrically provided with positioning pillars, the bottom end of the liquid chamber is symmetrically provided with positioning holes, and the positioning pillars are fitted in the corresponding positioning holes.

Patent History
Publication number: 20190191764
Type: Application
Filed: Apr 26, 2018
Publication Date: Jun 27, 2019
Inventor: Yusi Lin (Shenzhen City)
Application Number: 15/964,039
Classifications
International Classification: A24F 47/00 (20060101);