Abstract:
The present invention provides an electronic cigarette including a main rod. The main rod is a hollow barrel structure with an open end. The main rod axially defines a suction hole in a middle of a bottom wall and passing through the bottom wall which is far away from the open end so as to form a nozzle end for smoking the electronic cigarette. The main rod is integrally molded. The electronic cigarette of the present invention can effectively avoid a nozzle cap off problem which always happened in traditional disposable electronic cigarette by disposing the suction hole at one end of the main rod.

Description:
FIELD OF THE INVENTION 
       [0001]    The present invention relates to an electronic cigarette, especially relates to a disposable electronic cigarette including a nozzle cap integrated with a main rod. 
       BACKGROUND OF THE INVENTION 
       [0002]    The existing disposable electronic cigarette outer case is generally composed of three components: a main rod, a nozzle cap and a lamp cap. The nozzle cap and the lamp cap are disposed at the two opposite ends of the main rod respectively. As the main rod and the nozzle cap of the traditional disposable electronic cigarette are disposed as two separate parts, and they are usually fixed by interference connection, it makes not only production and assembly of trouble, but also very easy to fall off when using or even may be inhaled to mouth by mistake. 
       SUMMARY OF THE INVENTION 
       [0003]    The problem of the present invention to be solved is to provide an electronic cigarette with a nozzle end with stable structure, which can effectively avoid a nozzle cap off problem which always happened to the traditional disposable electronic cigarette. 
         [0004]    To achieve the above-mentioned object, the present invention provides an electronic cigarette including a main rod. The main rod is a hollow barrel structure with an open end. The main rod axially defines a suction hole in a middle of a bottom wall and passing through the bottom wall which is far away from the open end so as to form a nozzle end for smoking the electronic cigarette. The main rod is integrally molded. 
         [0005]    In a further embodiment, an inner wall of the suction hole axially extends toward the internal of the main rod to form an air guide post for guiding smoking flow. 
         [0006]    In a further embodiment, the electronic cigarette further comprises an atomization device disposed inside the main rod to atomize liquid smoke, and a battery electrically connected with the atomization device for supplying power to the atomization device. 
         [0007]    In a further embodiment, the atomization device comprises a liquid storage element for storing liquid smoke, an atomizer abutted with the liquid storage element for atomizing liquid smoke, and an atomization seat and an atomization cover which are separately disposed at opposite ends of the liquid storage element for sealing the liquid storage element. 
         [0008]    In a further embodiment, the atomization device is disposed at one side in the main rod and adjacent to the nozzle end, an inner wall of the nozzle end of the main rod radially extends to form a boss for abutting to the atomization cover. 
         [0009]    In a further embodiment, the liquid storage element is fixed between the atomization seat and the atomization cover by a support. 
         [0010]    In a further embodiment, the support is a hollow tube structure and forms an atomization chamber in the middle thereof for guiding airflow and accommodating the atomizer. 
         [0011]    In a further embodiment, the atomizer includes an atomization rod and electric wire wrapping on the atomization rod, the atomization rod is radially disposed and fixed inside the support and two ends of the atomization rod and abuts to the liquid storage element respectively, a sidewall of the support radially defines a latch opening for the atomization rod passing through. 
         [0012]    In a further embodiment, the battery is disposed at one side of the atomization seat away from the liquid storage element, one sidewall of the atomization seat defines a first threading hole and a second threading hole which are used for two ends of the electric wire passing through and connecting to positive and negative of the battery respectively. 
         [0013]    In a further embodiment, the atomization seat and the atomization cover are engaged with each other by interference fit, and middles of the atomization seat and the atomization cover respectively define a first vent and a second vent correspondingly for communicating to the atomizing chamber to guide airflow. 
         [0014]    In a further embodiment, the electronic cigarette further comprises an atomization control unit connected with the battery to control the atomization device powered on or off, the atomization control unit is set between the atomization device and the battery, or set on one side of the battery away from the atomization device. 
         [0015]    In a further embodiment, the atomization control unit includes an atomization control circuit and an atomization control switch connected to the atomization control circuit; the atomization control switch is a capacitive sensor switch, or an airflow sensor switch, or a key switch; the atomization control circuit is integrated within the atomization control switch, or the atomization control unit further includes an atomization control circuit board connected to the battery and the atomization control switch respectively, the atomization control circuit is integrated in the atomization control circuit board. 
         [0016]    In a further embodiment, one side of the battery away from the atomization device disposes a light emitting device to simulate cigarette burning, the light emitting device includes a light-emitting unit connected with the battery, the open end of the main rod disposes a cover to seal the main rod, the whole or at least one end face of the cover is disposed transparent or translucent to let the light emitting unit to emit light out. 
         [0017]    In a further embodiment, the cover and the main rod are engaged with each other by interference fit. 
         [0018]    In a further embodiment, an outer surface of the main rod has a sticker. 
         [0019]    The advantage of the present invention are: By setting the integration of the main rod, and defining suction holes on the bottom wall of one end of the main rod, it achieves an effective solution to resolve smoking nozzle cap off problems when using traditional disposable electronic cigarette, simple structure, and easier to use. 
         [0020]    Embodiments of the present invention will be further described in detail in the following drawings. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0021]      FIG. 1  is a schematic structure diagram of an electronic cigarette embodiment of the present invention. 
           [0022]      FIG. 2  is a schematic cross-sectional structure diagram of an electronic cigarette embodiment of the present invention. 
           [0023]      FIG. 3  is an exploded view of an electronic cigarette embodiment of the present invention. 
           [0024]      FIG. 4  is a cutaway view of the main rod of an electronic cigarette embodiment of the present invention. 
       
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
       [0025]    Referring to the  FIGS. 1-4 , an embodiment of the present invention provides a disposable electronic cigarette, including a main rod  101 . Referring to  FIG. 4 , the main rod  101  is a hollow barrel structure with an open end. A middle of a bottom wall of the main rod  101  away from the open end axially defines a suction hole  11  passing through the bottom wall so as to form a nozzle end  202  for smoking the electronic cigarette. An inner wall of the suction hole  11  axially extends toward the internal of the main rod  101  to form an air guide post  12  for guiding smoking flow. 
         [0026]    In the embodiment of the present invention, the main rod  101  can be made of metal, plastic, paper, wood and other materials, and is preferably set to like a true cigarette with circular cross-section shape of a barrel structure to strengthen the simulation of the electronic cigarette. Of course, the main rod  101  may also be disposed as polygonal in cross-section or other combinations of the barrel-shaped structure depending on design requirements to enrich the exterior styles of the electronic cigarette. 
         [0027]    Referring to the  FIGS. 1-3 , the open end  201  of the main rod has a cover  102 , and the cover  102  is fixed on the end of the main rod  101  to coordinate with the main rod  101  to seal the electronic cigarette. 
         [0028]    Referring to  FIG. 2  to  FIG. 3 , the main rod  101  disposes an atomization device  20  and a battery  30  inside thereof. The atomization device  20  is used for atomizing liquid into smoke for users smoking, and the battery  30  is electrically connected with the atomization device  20  to provide power for the atomization device  20 . 
         [0029]    The atomization device  20  includes a liquid storage element  21 , an atomizer  22 , an atomization seat  23  and an atomization cover  24 . 
         [0030]    The atomization device  20  is disposed adjacent to the nozzle end  202  of the main rod  101 . The inner wall of the nozzle end  202  of the main rod  101  radially extends to form a boss  13  for abutting the atomization cover  24 . 
         [0031]    The liquid storage element  21  can absorb and store liquid and is used to absorb and store liquid smoke to facilitate the liquid smoke atomization by the atomizer  22 . In the embodiment, the liquid storage element  21  can be made from materials capable of absorbing and storing liquid such as glass fiber, nonwoven fabric, wood pulp fiber, chemical fiber, polyvinyl alcohol, high-temperature resistance cotton, chemical fiber cotton, mixed cotton, absorbent cotton, nickel foam and other materials. 
         [0032]    In the embodiment, the liquid storage element  21  is disposed as a hollow tube structure to match with the main rod  101 , and coaxially disposed with the main rod  101 . 
         [0033]    Referring to the  FIG. 2 , in the embodiment, the liquid storage element  21  is fixed between the atomization seat  23  and the atomization cover  24  by a support tube  25 . The support tube  25  forms an atomization chamber  251  for guiding airflow and accommodating the atomizer  22  in the center thereof. 
         [0034]    The atomizer  22  is used to atomize the liquid smoke to smoke. In the embodiment, the atomizer  22  is composed of an electric wire  221  and an atomization rod  222 . The electric wire  221  wraps on the atomization rod  222 , and the atomization rod  222  is supported and fixed inside the liquid storage element  21  to absorb liquid smoke from the liquid storage element  21  to supply to the electric wire  221  for heating and atomizing the liquid smoke. In the embodiment, the atomization rod  222  is disposed as cylindrical and it can be made of fiberglass of other high temperature resistance fiber materials capable of absorbing liquid. 
         [0035]    In the embodiment, the atomization rod  222  is radially disposed inside the support tube  25 . The sidewall of the support tube  25  defines a latch opening  252  radially running through the sidewall. Two ends of the atomization rod  222  extend outside from the support tube  25  through the latch opening  252  and abut to the inner wall of the liquid storage element  21  to absorb the liquid smoke from the liquid storage element  21  for heating and atomizing by the electric wire  221 . Specifically, to avoid the atomization rod  222  axially moving inside the support tube  25 , a positioning tube can be disposed at the external of the support tube  25  and at the top or below of the atomization rod  222 . 
         [0036]    Due to high temperature when the electric wire  221  heating and atomizing liquid smoke, in order to enhance the life and heat resistance of the liquid storage element  21 , in the embodiment, a heat insulating component made of high temperature resistance and capable of liquid absorbing materials can be set between the liquid storage element  21  and the support tube  25  to enhance the protection of the liquid storage element  21 . 
         [0037]    In the embodiment, both the atomization seat  23  and the atomization cover  24  are made of rubber materials such as silicone capable of elastic deforming, and the outer contour of the atomization seat  23  and the atomization cover  24  are adapted with the inner contour of the main rod  101  and preferably engage with the main rod  101  by interference fit. Both the atomization seat  23  and the atomization cover  24  use outer wall tensioner to be fixed inside the main rod  101  to sealingly fix the liquid storage element  21  in the main rod  101 . Referring to the  FIG. 2 , in the central of the atomization seat  23  and the atomization cover  24  defines a first vent  231  and a second vent  241  correspondingly for communicating with the atomizing chamber  251  to guide airflow. 
         [0038]    Refer to  FIG. 2 , in the embodiment, the battery  30  is disposed at one side of the atomization seat  23  away from the liquid storage element  21 , and is fixed inside the main rod  101  by a support  31 . The sidewall of the atomization seat  23  defines a first threading hole  232  and the second threading hole  233  which are used for the two ends of the electric wire  221  passing through. The two ends of the electric wire  221  pass through the first threading hole  232  and the second threading hole  233  respectively and then electrically connected with the battery  30 . 
         [0039]    Referring to the  FIG. 2  and  FIG. 3 , the main rod  101  also includes an atomization control unit. The atomization control unit is electrically connected with the battery  30  and the atomization device  20  to control the atomization device  20  powered on or off. The atomization control unit is disposed between the atomization device  20  and the battery  30 , or disposed on one side of the battery  30  away from the atomization device  20 . 
         [0040]    In the embodiment, the atomization control unit is preferably disposed on the side of the battery  30  away from the atomization device  20 . The atomization control unit includes an atomization control circuit and an atomization control switch connecting with the atomization control circuit. 
         [0041]    In the embodiment, the atomization control switch is preferably disposed as a sensor switch  41 , and the sensor switch  41  is fixed in the main rod  101  by a switch holder  42 . Specifically in the embodiment, the sensor switch  41  is a capacitive sensor switch. When users using the electronic cigarette smoking, the capacitive sensor switch sensors the capacitance change after inhalation flow then control the atomization control circuit to supply power to make the electronic cigarette going to work. As an embodiment, the sensor switch  41  may also be disposed as airflow sensor switch, it means that when users inhaling by the nozzle end of the main rod  101 , a chamber of the electronic cigarette produces negative pressure to make the airflow sensor switch generate pulse signals to control the atomization control circuit to supply power. 
         [0042]    Since the manufacturing of the sensor switch  41  is in precision, and generally disposes a specialized controller inside. In the embodiment, the atomization control circuit can be directly integrated on the controller in the sensor switch  41 . As an embodiment, the atomization control circuit can also be integrated on an atomization control circuit board which is disposed independently out of the sensor switch  41  and electrically connected with the sensor switch  41  and the battery  30  respectively. 
         [0043]    As an embodiment, the atomization control switch can also be disposed as traditional key switch. The key switch is electrically connected with the battery  30  by a key switch board to operate the atomization control circuit via the key controlling, and then achieves the circuit of the atomization device  20  connected and disconnected. 
         [0044]    In the embodiment, the open end  201  of the main rod  101  disposes a light emitting device. The light emitting device is used as work light for the electronic cigarette, and includes a light-emitting unit which is electrically connected with the battery  30 . In the embodiment, the light-emitting unit is disposed as a red light emitting lamp. When users smoke the electronic cigarette, red aperture similar to cigarette combustion appears at one end away from the nozzle end of the electronic cigarette to improve the reality of the visual look and feel for smokers. In order to let the light from light emitting unit send out, the whole or at least one end face of the cover  102  is disposed transparent or translucent. In the embodiment, the cover  102  is wholly made of transparent plastic materials. 
         [0045]    To further improve the simulation of the electronic cigarette  100  and strengthen hand feeling, the outer surface of the main rod  101  disposes a sticker  103 . A side surface of the sticker  103  facing outside can be printed patterns same or similar to real appearance of cigarettes, and the other side surface of the sticker  103  sticking with the main rod  101  can dispose any paste agent which can stick the sticker  103  with the main rod  101 . 
         [0046]    It is understood that the electronic cigarette of the present inventions is not limited to the embodiments shown in the  FIG. 1  to  FIG. 4 , various technical features from embodiments may be combined to form new embodiments. 
         [0047]    Embodiments of the present invention is shown and described in the above-mentioned. Various improvement and modifications can be made to the embodiments by those skilled in the art without departing from the true spirit and scope of the disclosure. The scope of the present invention is defined by the appended claims and equivalents thereof.