CN112690499B

CN112690499B - Electronic cigarette

Info

Publication number: CN112690499B
Application number: CN202011530249.5A
Authority: CN
Inventors: 叶曙兵; 杨小云; 何伟
Original assignee: Shenzhen Zhaowei Machinery and Electronics Co Ltd
Current assignee: Shenzhen Zhaowei Machinery and Electronics Co Ltd
Priority date: 2020-12-22
Filing date: 2020-12-22
Publication date: 2024-06-11
Anticipated expiration: 2040-12-22
Also published as: CN112690499A

Abstract

The invention relates to the technical field of smoking sets, and provides an electronic cigarette. Specifically, this electron cigarette includes: the shell is connected with the suction nozzle, the shell is provided with an installation space and a heating cavity which are mutually independent, the suction nozzle is communicated with the installation space and the heating cavity, and the shell is provided with a vent hole for communicating the installation space with the atmosphere; the control module is arranged in the installation space; the negative pressure detector is arranged in the installation space and is electrically connected with the control module; the heating device is arranged in the heating cavity and is electrically connected with the control module; the gas-liquid mixing mechanism is arranged in the installation space and is controlled by the control module to work so as to convey quantitative tobacco tar or quantitative air to the heating cavity. By the technical scheme, the problems that tobacco tar in the electronic cigarette in the prior art is easy to leak and the amount of the heated and atomized tobacco tar cannot be controlled are solved.

Description

Electronic cigarette

Technical Field

The invention belongs to the technical field of smoking sets, and particularly relates to an electronic cigarette.

Background

In the prior art, the electronic cigarette on the market is of an air channel type structural design, namely two ends of an air channel are communicated, one end of the electronic cigarette is air-in, the other end of the electronic cigarette is air-out (namely a suction nozzle), an atomizer, a cigarette cartridge and the like are arranged in the middle of the air channel, the cigarette cartridge is directly connected with the atomizer, tobacco tar in the cigarette cartridge permeates into the atomizer through a honeycomb net or a structural member thereof, a heating wire of the atomizer heats the tobacco tar to generate smoke, and the smoke enters an oral cavity along with air sucked by the suction nozzle.

Because the tobacco tar of the tobacco cartridge of the existing electronic cigarette permeates into the atomizer, the condition that the tobacco tar leaks easily after long-time use, and the mode that the tobacco tar permeates into the atomizer cannot control the heated and atomized quantity (whether the volume capacity or the mass capacity), the condition that the heating and atomization are incomplete and the tobacco tar is burnt often exists in the atomizer.

Disclosure of Invention

The invention aims to provide an electronic cigarette, which aims to solve the problems that tobacco tar in the electronic cigarette in the prior art is easy to leak and the amount of the heated and atomized tobacco tar cannot be controlled.

In order to achieve the above purpose, the invention adopts the following technical scheme: an electronic cigarette, comprising: the shell is connected with the suction nozzle, the shell is provided with an installation space and a heating cavity which are mutually independent, the suction nozzle is communicated with the installation space and the heating cavity, and the shell is provided with a vent hole for communicating the installation space with the atmosphere; the control module is arranged in the installation space; the negative pressure detector is arranged in the installation space and is electrically connected with the control module; the heating device is arranged in the heating cavity and is electrically connected with the control module; the gas-liquid mixing mechanism is arranged in the installation space and is controlled by the control module to work so as to convey quantitative tobacco tar or quantitative air to the heating cavity.

Optionally, the gas-liquid mixing mechanism comprises: the assembly shell is provided with a first channel, a second channel, a pumping channel and an output channel, one ends of the first channel, the second channel and the output channel are communicated with the pumping channel, the other end of the second channel is communicated with the installation space, and the other end of the output channel is communicated with the heating cavity; the liquid storage bin is communicated with the other end of the first channel; the pumping device is arranged on the pumping channel and is used for enabling the pumping channel to form negative pumping pressure or positive pumping pressure; the first opening and closing device is arranged on the first channel and is used for communicating or closing the first channel; the second opening and closing device is arranged on the second channel and is used for communicating or closing the second channel; the driving device is connected with the pumping device through a transmission device to output power, and is electrically connected with the control module; the check valve is arranged on the output channel and is used for communicating or closing the output channel; wherein the output channel, the first channel and the second channel are alternatively communicated according to a preset sequence.

Optionally, the pumping device comprises a first driving end and a plunger connected to the first driving end, the driving device is connected to the first driving end, and the driving device drives the first driving end to move through the driving device, so that the first driving end drives the plunger to reciprocate in the pumping channel.

Optionally, the first driving end includes gear portion and cam portion, and the axis of rotation of gear portion and cam portion is coaxial and both synchronous rotations, and transmission is drive gear train, and gear portion and drive gear train's output gear meshing, and the plunger is equipped with the transmission groove towards transmission's tip, and cam portion assembles in the transmission groove, and cam portion drives plunger reciprocating motion in the pumping passageway.

Optionally, the first opening and closing device comprises a second transmission end and a first switch valve, the transmission device is connected with the second transmission end, and the driving device drives the second transmission end to move through the transmission device, so that the second transmission end drives the first switch valve to open or close.

Optionally, the second driving end includes first meshing gear and first cam lever, and transmission is drive gear train, and first meshing gear meshes with drive gear train's output gear, and first end and first meshing gear fixed connection of first cam lever and first meshing gear's axis of rotation are coaxial, and first ooff valve is installed in first passageway, and cam-shaped circumference lateral wall of first cam lever's second end supports first ooff valve in order to drive first ooff valve intercommunication or close first passageway.

Optionally, the second opening and closing device comprises a third driving end and a second switching valve, the driving device is connected with the third driving end, and the driving device drives the third driving end to move through the driving device, so that the third driving end drives the second switching valve to open or close.

Optionally, the third driving end includes a second meshing gear and a second cam rod, the driving device is a driving gear set, the second meshing gear is meshed with an output gear of the driving gear set, a first end of the second cam rod is fixedly connected with the second meshing gear, the second cam rod is coaxial with a rotation axis of the second meshing gear, the second switch valve is installed in the second channel, and a cam-shaped circumferential side wall of the second end of the second cam rod abuts against the second switch valve to drive the second switch valve to be communicated or close the second channel.

Optionally, the gas-liquid mixing mechanism further includes a diaphragm valve structure, the diaphragm valve structure is assembled in the assembly housing, the diaphragm valve structure includes a frame, a first diaphragm, a second diaphragm and a third diaphragm, the first diaphragm, the second diaphragm and the third diaphragm are all connected on the frame, the first diaphragm is a one-way valve, the second diaphragm corresponds to the first channel to communicate or close the first channel and the pumping channel, and the third diaphragm corresponds to the second channel to communicate or close the second channel and the pumping channel.

Optionally, the first opening and closing device and the second opening and closing device are electromagnetic control valves, and the first opening and closing device and the second opening and closing device are electrically connected with the control module.

Optionally, the check valve is also an electromagnetic control valve, and the check valve is electrically connected with the control module.

Optionally, the electronic cigarette further comprises an atomizing nozzle, the atomizing nozzle is installed at the output port of the output channel, the atomizing nozzle is located in the heating cavity, and the atomizing nozzle faces the heating device.

The invention has at least the following beneficial effects:

When the electronic cigarette is used, a user sucks air through the suction nozzle, the air in the internal installation space is quickly sucked out, although part of the air is supplemented into the internal installation space through the vent holes, the air suction speed is higher than the air supplementing speed, negative pressure is generated in the internal installation space, at the moment, a negative pressure detector detects the negative pressure condition of the internal installation space and then a signal is sent to the control module, the control module receives the signal, so that the user can know that the suction action is performed, and the control module controls the gas-liquid mixing mechanism to work, pumps tobacco tar into the heating cavity to generate smoke by heating by the heating device, and immediately pumps the air into the heating cavity to pump the smoke out of the suction nozzle into the oral cavity of the user. Therefore, the electronic cigarette provided by the embodiment of the invention adopts the mode of pumping tobacco tar and air to generate and output smoke, so that the tobacco tar cannot directly infiltrate into the heating cavity and can only be pumped through the gas-liquid mixing mechanism, the condition that the tobacco tar leaks is prevented, and the volumetric capacity of the tobacco tar which is heated and atomized to generate the smoke can be accurately controlled through pumping the tobacco tar to the heating cavity through the gas-liquid mixing mechanism, and the volumetric capacity of the same pumping air can also be accurately controlled, namely, quantitative control of the smoke which is conveyed into the oral cavity of a user can be realized. In addition, in the electronic cigarette, the electronic cigarette is not turned on or turned off by using a conventional switch structure, but intelligent control is realized by using the cooperation of the negative pressure detector and the control module, a user only needs to suck through the suction nozzle to start the electronic cigarette to perform smoking, when the user stops sucking, the air pressure in the installation space is equal to the atmospheric pressure (namely, the negative pressure disappears), and then the whole electronic cigarette stops working, so that the electronic cigarette is more intelligent and convenient.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic perspective view of an assembled electronic cigarette according to a first embodiment of the present invention;

FIG. 2 is an exploded view of FIG. 1;

fig. 3 is a block diagram of a design structure of an electronic cigarette according to a first embodiment of the present invention;

fig. 4 is a schematic structural diagram of a first perspective view of a gas-liquid mixing mechanism of an electronic cigarette according to a first embodiment of the present invention;

Fig. 5 is a schematic structural diagram of a second perspective view of a gas-liquid mixing mechanism of an electronic cigarette according to the first embodiment of the present invention;

Fig. 6 is a front view of a gas-liquid mixing mechanism of an electronic cigarette according to the first embodiment of the present invention;

FIG. 7 is a left side view of FIG. 6;

FIG. 8 is a cross-sectional view taken along the direction A-A in FIG. 6;

FIG. 9 is a cross-sectional view taken in the direction B-B of FIG. 7;

fig. 10 is a schematic view of a first view angle structure of a third split casing of a gas-liquid mixing mechanism of an electronic cigarette according to the first embodiment of the present invention;

fig. 11 is a schematic structural diagram of a second view angle of a third split casing of a gas-liquid mixing mechanism of an electronic cigarette according to the first embodiment of the present invention;

Fig. 12 is a schematic structural diagram of a fourth split case of a gas-liquid mixing mechanism of an electronic cigarette according to a first embodiment of the present invention;

Fig. 13 is a schematic structural diagram of a second view angle of a fourth split casing of a gas-liquid mixing mechanism of an electronic cigarette according to the first embodiment of the present invention;

Fig. 14 is a schematic diagram of an assembly structure of a pumping device of a gas-liquid mixing mechanism of an electronic cigarette according to the first embodiment of the present invention;

FIG. 15a is a cross-sectional view taken along the direction C-C in FIG. 14;

Fig. 15b is a cross-sectional view of the plunger of the gas-liquid mixing mechanism of the electronic cigarette according to the first embodiment of the present invention continuing pushing from the position of fig. 15 a;

fig. 15c is a cross-sectional view of the plunger of the gas-liquid mixing mechanism of the electronic cigarette according to the first embodiment of the present invention continuing pushing from the position of fig. 15 b;

fig. 16 is a schematic view of a first view structure of a diaphragm valve structure of a gas-liquid mixing mechanism of an electronic cigarette according to the first embodiment of the present invention;

Fig. 17 is a schematic diagram of a second view structure of a diaphragm valve structure of a gas-liquid mixing mechanism of an electronic cigarette according to the first embodiment of the present invention;

fig. 18 is a diagram showing a comparison of a plunger action curve, an intake action curve and a liquid intake action curve in a four-stroke operation mode of a gas-liquid mixing mechanism of an electronic cigarette according to the first embodiment of the present invention;

Fig. 19 is a block diagram of a design structure of an electronic cigarette according to a second embodiment of the present invention.

Wherein, each reference sign in the figure:

301. A housing; 311. a vent hole; 302. a suction nozzle; 303. a negative pressure detector; 304. an auxiliary mounting seat; 305. a heating device; 307. a control module; 90. a lithium battery module; 200. a gas-liquid mixing mechanism; 10. assembling a shell; 100. a liquid storage bin; 101. a first split case; 102. a second split case; 103. a third split case; 1031. three-fork rib plates; 104. a fourth split case; 105. a bin cover; 11. an external mount; 12. an internal installation space; 14. a heating chamber; 131. a first channel; 132. a second channel; 133. a pumping channel; 134. an output channel; 20. a driving device; 30. a transmission device; 40. a pumping device; 411. a gear portion; 412. a cam section; 42. a plunger; 421. a transmission groove; 50. a first opening and closing device; 51. a first meshing gear; 521. a first cam lever; 522. a first switching valve; 60. a second opening and closing device; 61. a second meshing gear; 621. a second cam lever; 622. a second switching valve; 70. a diaphragm valve structure; 71. a frame; 72. a first membrane; 73. a second membrane; 74. a third membrane; 80. a partition board.

Detailed Description

Embodiments of the present invention 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 and intended to explain the present invention and should not be construed as limiting the invention.

In the description of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

As shown in fig. 1 to 5, a first embodiment of the present invention provides an electronic cigarette. Specifically, the electronic cigarette includes a housing 301, a suction nozzle 302, a control module 307, a negative pressure detector 303, a heating device 305 and a gas-liquid mixing mechanism 200, in the process of assembling and forming the electronic cigarette, the suction nozzle 302 is connected to an open end of the housing 301, while the other end of the housing 301 is a closed end, an internal installation space 12 and a heating cavity 14 are formed inside the housing 301, the internal installation space 12 and the heating cavity 14 are mutually independent, a vent hole 311 is formed on a wall of the housing 301, the vent hole 311 is communicated with the internal installation space 12, the suction nozzle 302 is communicated with the internal installation space 12, and the suction nozzle 302 is communicated with the heating cavity 14, that is, a user can suck gas in the internal installation space 12 and the heating cavity 14 when performing suction action through the suction nozzle 302. Further, the control module 307, the negative pressure detector 303 and the gas-liquid mixing mechanism 200 are installed in the internal installation space 12, wherein the control module 307 and the negative pressure detector 303 are installed in the internal installation space 12 through the auxiliary installation seat 304, the heating device 305 is installed in the heating cavity 14, the negative pressure detector 303 is electrically connected with the control module 307, the heating device 305 is electrically connected with the control module 307, and the control module 307 controls the gas-liquid mixing mechanism 200 so as to control the gas-liquid mixing mechanism 200 to work to convey the tobacco tar or the air to the heating cavity 14 (when the gas-liquid mixing mechanism 200 performs pumping action, the tobacco tar is sucked or the air is sucked, and accordingly, when the gas-liquid mixing mechanism 200 performs pumping action, the tobacco tar is output or the air is output).

In the electronic cigarette according to the embodiment of the invention, when a user sucks air through the suction nozzle 302, the air in the interior space 12 is quickly sucked out, although some air is supplied into the interior space 12 through the vent hole 311 opened on the housing 301, as shown in fig. 1 and 2, a negative pressure is generated in the interior space 12 (the air pressure in the interior space 12 is less than the atmospheric pressure, the air pressure in the interior space 12 is negative with respect to the atmospheric pressure) because the air suction speed is greater than the air supplementing speed, at this time, the negative pressure detector 303 detects the negative pressure of the interior space 12 and sends a signal to the control module 307, and the control module 307 receives the signal to know that the user is sucking, so that the control module 307 controls the air-liquid mixing mechanism 200 to work, pumps tobacco tar into the heating cavity 14, heats the suction nozzle 305 to generate smoke, and immediately pumps the air into the heating cavity 14 to mix with the smoke and convey the smoke out of 302 into the oral cavity of the user. Therefore, the electronic cigarette provided by the embodiment of the invention adopts the mode of pumping the tobacco tar and air to generate and pump the output smoke, so that the tobacco tar cannot directly infiltrate into the heating cavity 14 and can only be pumped through the gas-liquid mixing mechanism 200, the condition that the tobacco tar leaks is prevented, and the volumetric capacity of the tobacco tar which is heated and atomized to generate the smoke can be accurately controlled through pumping the tobacco tar to the heating cavity 14 through the gas-liquid mixing mechanism 200, namely, the volumetric capacity of the same pumping air can also be accurately controlled, namely, the smoke which is conveyed into the oral cavity of a user can be quantitatively controlled. In addition, in the electronic cigarette, the electronic cigarette is not turned on or turned off by using a conventional switch structure, but the intelligent control is realized by using the cooperation of the negative pressure detector 303 and the control module 307, a user only needs to suck through the suction nozzle 302 to start the electronic cigarette to perform smoking, when the user stops sucking action, the air pressure in the internal installation space 12 is equal to the atmospheric pressure (namely, the negative pressure disappears), and then the whole electronic cigarette stops working (at the moment, the negative pressure detector 303 is still in a standby state), so that the electronic cigarette is more intelligent and convenient.

In the first embodiment, the gas-liquid mixing mechanism 200 of the electronic cigarette includes an assembly housing 10, a liquid storage bin 100, a pumping device 40, a first opening and closing device 50, a second opening and closing device 60, a driving device 20 and a one-way valve, the assembly housing 10 is formed with a first channel 131, a second channel 132, a pumping channel 133 and an output channel 134, one ends of the first channel 131, the second channel 132 and the output channel 134 are all communicated with the pumping channel 133, the other end of the second channel 132 is communicated with the installation space, the other end of the output channel 134 is communicated with the heating cavity 14, the liquid storage bin 100 is communicated with the other end of the first channel 131, the pumping device 40 is installed in the pumping channel 133, and the pumping device 40 is used for enabling the pumping channel 133 to form suction negative pressure or pumping positive pressure.

As shown in fig. 6 to 9, the first opening and closing device 50 is installed in the inner installation space 12 formed by the assembly housing 10 (i.e., installed in the first channel 131), the first opening and closing device 50 has a second driving end connected with the output end of the driving device 30, and a first switching control structure assembled at the first channel 131, the second driving end driving the first switching control structure to control the first channel 131 to be connected to or disconnected from the reservoir 100 for storing liquid; like the first opening and closing device 50, the second opening and closing device 60 is installed in the internal installation space 12 (i.e., in the second channel 132), and the second opening and closing device 60 has a third driving end connected with the output end of the driving device 30 and a second switching control structure assembled at the second channel 132, the third driving end driving the second switching control structure to control the second channel 132 to be connected or disconnected with the external environment. And, a check valve is installed in the interior installation space 12 and corresponds to the output passage 134, and the check valve is applied to control the liquid or gas in the pumping passage 133 (only one of which is output at a time) to be unidirectionally delivered from the output passage 134, i.e., the check valve controls the pumping passage 133 to be connected to or disconnected from the output passage 134. In this way, the pumping device 40, the first switch control structure, the second switch control structure and the check valve selectively connect or disconnect the liquid storage 100 with the pumping channel 133 through the first channel 131, the external environment through the second channel 132 and the output channel 134 in a predetermined sequence. That is, when the pumping device 40 performs a pumping action in the pumping channel 133, the check valve is in the closed state at this time to disconnect the pumping channel 133 from the output channel 134 (i.e., the output channel 134 is blocked), and only one of the first channel 131 and the second channel 132 is in the open state (blocked), for example, the first channel 131 is controlled to be in the open state by the first switch control structure and the second channel 132 is controlled to be in the open state by the second switch control structure (or the first channel 131 is controlled to be in the open state by the first switch control structure and the second channel 132 is controlled to be in the open state by the second switch control structure). That is: when the first channel 131 is connected and the second channel 132 is disconnected, the target liquid is sucked into the pumping channel 133 as a liquid sucking process at this time; when the first channel 131 is disconnected and the second channel 132 is connected, air is sucked into the pumping channel 133 at this time as an air suction process. When the pumping device 40 performs a pushing action in the pumping channel 133, the check valve is opened to connect the pumping channel 133 and the output channel 134, and the first channel 131 and the second channel 132 are both in an open state (blocked), the pumped liquid or gas output channel 134 is pumped and output.

In the process of mixing the target liquid and the air by using the gas-liquid mixing mechanism, since the driving device 20 provides power to the pumping device 40 through the transmission device 30 to perform pumping action and pushing action, and the pumping action of the pumping device 40 is consistent each time, that is, the volume capacity of the liquid or the gas pumped each time is the same, the volume capacity of the liquid or the gas output by the pumping device 40 each time is the same, that is, the mixing volume capacity of the smoke output to the oral cavity of the user obtained by each time of gas-liquid mixing is the same, so that the purpose of quantitative mixing is achieved.

In this embodiment, the pumping means 40 comprises a first drive end and a plunger 42, the plunger 42 being connected to the first drive end for movement with movement of the first drive end. During assembly, the transmission device 30 is connected with the first transmission end, and the driving device 20 drives the first transmission end to move through the transmission device 30 so as to drive the plunger 42 to move, so that the plunger 42 reciprocates in the pumping channel 133 under the drive of the first transmission end. Thus, when the plunger 42 is pulled in the pumping channel 133, a negative pumping pressure is generated in the pumping channel 133, so as to pump the tobacco tar or air; when the plunger 42 is pushed in the pumping channel 133, a positive pumping pressure is generated in the pumping channel 133, and the tobacco tar or air pumped into the pumping channel 133 is pumped out. Therefore, when it is desired to change the volume of the mixture obtained by each mixing, it is only necessary to change the stroke length of the plunger 42 in the pumping channel 133. Further, if it is desired to obtain a larger gas-liquid mixing volume per unit time, it is possible to obtain a larger gas-liquid mixing volume per unit time by simply controlling the power output of the driving device 20 and increasing the frequency of movement of the plunger 42.

As shown in fig. 6 to 9, the transmission device 30 includes a driving gear (not shown), an intermediate reduction gear (not shown), a first output gear (not shown), a second output gear (not shown), and a third output gear (not shown), and at this time, the driving device 20 is powered by a motor, and the driving gear is mounted on a driving shaft of the motor, the intermediate reduction gear is engaged with the driving gear, and the intermediate reduction gear is engaged with the first output gear to transmit power. Then, the second output gear and the third output gear are respectively meshed with the first output gear for transmission, that is, the linear speed of the second output gear is equal to the linear speed of the third output gear, and when the radius of the second output gear and the radius of the third output gear are equal, the rotational angular speeds of the second output gear and the third output gear are also equal. In this way, the power provided by the driving device 20 is divided into three paths of backward transmission output by the first output gear, the second output gear, and the third output gear, and the specific transmission output paths are: the first output gear is in transmission connection with the first transmission end, the second output gear is in transmission connection with the second transmission end, and the third output gear is in transmission connection with the third transmission end. The drive gear, the intermediate transfer gear, and the portion of the first output gear that meshes with the intermediate reduction gear are cooperatively fitted in the interior installation space 12 that is partitioned by the partition 80. In practice, the partition plate 80 is used as an intermediate support in the assembly process, that is, the rotation shaft of the intermediate reduction gear, the two rotation shafts of the second output gear and the third output gear are all supported as an intermediate support by the partition plate 80.

Referring now to fig. 8 and 9 in combination with fig. 14-15 c, fig. 15 a-15 c illustrate the kinematic motion of the first drive end engaged with the plunger 42 during a pushing action of the plunger 42. Specifically, the first output gear transmits power to the first transmission end, and the first transmission end includes a gear portion 411 and a cam portion 412, the rotation axes of the gear portion 411 and the cam portion 412 are coaxial and rotate synchronously, the cam portion 412 may be designed as a cam, or may be designed as an eccentrically mounted round wheel (i.e., the rotation axis around which the round wheel rotates is eccentrically disposed relative to the center axis of the round wheel, also referred to as an eccentric wheel), and the gear portion 411 is meshed with the first output gear for transmission. The end of the plunger 42 facing the transmission device 30 is provided with a transmission groove 421, the cam portion 412 is assembled in the transmission groove 421, and the cam portion 412 drives the plunger 42 to move, that is, in the process that the gear portion 411 drives the cam portion 412 to rotate synchronously, the cam surface of the cam portion 412 rotates to periodically push the top wall of the transmission groove 421, so that the plunger 42 can reciprocate along the pumping channel 133. Wherein the cam portion 412 is preferably assembled using an eccentric.

In one of the other possible embodiments, the transmission 30 is a transmission gear set, the driving device 20 is a motor, and the first driving end of the pumping device 40 is a rack connected to the end of the plunger 42, and the rack is meshed with the first output gear of the transmission gear set. In this way, when the motor rotates in the forward direction, the plunger 42 performs a pumping operation, and when the motor rotates in the reverse direction, the plunger 42 performs a pushing operation.

In another possible embodiment, the transmission device 30 employs a synchronous belt (or a chain, preferably a toothed belt), the driving device 20 employs a motor, a gear (i.e., a first output gear) is mounted at a rotating shaft end of the motor, and a follower gear is correspondingly mounted on an inner wall of the internal mounting space 12, and the synchronous belt is wound around the first output gear and the follower wheel. At this time, the first driving end of the pumping device 40 is a connection pin extending perpendicular to the central axis of the plunger 42, and the connection pin is fixed on the timing belt. In this way, when the motor rotates in the forward direction, the plunger 42 performs a pumping operation, and when the motor rotates in the reverse direction, the plunger 42 performs a pushing operation.

As shown in fig. 9, the second driving end is formed by combining a first meshing gear 51 and a first cam rod 521, the first switch control structure is a first switch valve 522, the first end of the first cam rod 521 is fixedly connected with the first meshing gear 51, the first cam rod 521 is coaxial with the rotation axis of the first meshing gear 51, the first switch valve 522 is installed in the first channel 131, and a cam-shaped circumferential side wall of the second end of the first cam rod 521 abuts against the first switch valve 522 to drive the first switch valve 522 to be communicated with or disconnected from the first channel 131. Further, the third driving end is a second meshing gear 61 and a second cam rod 621, the second switch control structure is a second switch valve 622, the first end of the second cam rod 621 is fixedly connected with the second meshing gear 61, the second cam rod 621 is coaxial with the rotation axis of the second meshing gear 61, the second switch valve 622 is installed in the second channel 132, and the cam-shaped circumferential side wall of the second end of the second cam rod 621 abuts against the second switch valve 622 to drive the second switch valve 622 to be communicated with or disconnected from the second channel 132. In this embodiment, as shown in fig. 18, four strokes of the plunger 42 are taken as an example of completing one gas-liquid mixing cycle, when the number of strokes of the plunger 42 required for completing one gas-liquid mixing is other (the number of strokes is an even number of times greater than or equal to 4), the angles rotated by the corresponding first and second cam bars 521 and 621 are different for each stroke of the plunger 42. In the four-stroke gas-liquid mixing cycle of the plunger 42 of the present embodiment, when the plunger 42 performs a reciprocating stroke in the pumping passage 133, the plunger 42 performs one pumping stroke as one stroke and performs one pushing action as one stroke, and the gas-liquid mixing mechanism performs one gas-liquid mixing, which requires the plunger 42 to perform four-stroke reciprocating strokes. As shown in fig. 18, the operation of the gas-liquid mixing mechanism for performing a gas-liquid mixing operation is described with the plunger 42 in the pumping channel 133 in an initial state of being withdrawn to the maximum stroke, and the pumping channel 133 stores the target liquid: when the driving device 20 is started to output power, the plunger 42 is driven to push and output the liquid in the pumping channel 133, and the second cam rod 621 rotatesThe second switching valve 622 is started to open at this time and the first cam lever 521 is also rotated over/>The first on-off valve 522 begins to close and the plunger 42 continues to push to the maximum stroke. The plunger 42 then begins its pumping action with the second passage 132 communicating with the suction event and the plunger 42 completes the pumping action to complete the suction event with the first cam lever 521 rotated to pi. The plunger 42 then performs a pushing action to pump out air, the second cam rod 621 rotates to/>All the air is pumped out and the first cam lever 521 is rotated to/>The first on-off valve 522 begins to open and the plunger 42 continues to complete this pushing action. Next, the plunger 42 again performs a pumping action, at which time the first switching valve 522 is opened and the second switching valve 622 is closed, until the plunger moves to return to the original state to complete the imbibition process, so that the plunger 42 completes a four-stroke cycle and completes a gas-liquid mixing operation.

In one of other possible embodiments, the transmission device 30 also adopts a transmission gear set, the driving device 20 adopts a motor, the second transmission end includes a rack and a wedge block connected to the end of the rack, the first switch control structure is a first switch valve 522, an inclined plane of the wedge block is abutted to the first switch valve 522, a sliding groove is correspondingly installed on the inner wall of the internal installation space 12, the wedge block is assembled in the sliding groove, the wedge block can slide along the sliding groove under the drive of the rack, and the rack is meshed with a second output gear of the transmission gear set. In this way, the rotating shaft of the motor rotates to drive the second output gear to rotate, the second output gear drives the rack to move, the rack drives the wedge block to slide in the chute, and then the first switch valve 522 is connected or disconnected with the first channel 131. Similarly, the third driving end includes a rack and a wedge block connected to the end of the rack, where the second switch control structure is a second switch valve 622, and the inclined surface of the wedge block is abutted to the second switch valve 622 and correspondingly installs a chute on the inner wall of the internal installation space 12, the wedge block is assembled in the chute, and the wedge block can slide along the chute under the drive of the rack, and the rack is meshed with the third output gear of the driving gear set. In this way, the rotating shaft of the motor rotates to drive the third output gear to rotate, the third output gear drives the rack to move, the rack drives the wedge block to slide in the chute, and then the second switch valve 622 is connected or disconnected with the second channel 132.

In another possible embodiment, the transmission device 30 employs a synchronous belt (or a chain, preferably a toothed belt), the driving device 20 employs a motor, a second output gear is mounted at a rotating shaft end of the motor, and a follower gear is mounted on an inner wall of the inner mounting space 12 corresponding to the first channel 131, and the synchronous belt is wound around the second output gear and the follower gear. At this time, the second driving end includes the transmission straight-bar and connects the wedge at one end of transmission straight-bar, and another end connection of transmission straight-bar is on the hold-in range, and first switch control structure is first ooff valve 522 promptly, and the inclined plane and the first ooff valve 522 butt of wedge to correspond the installation spout on the inner wall of inside installation space 12, the wedge is assembled in the spout, and the wedge can be driven down along the spout and slide at the hold-in range. In this way, the rotating shaft of the motor rotates to drive the second output gear to rotate, the second output gear drives the synchronous belt to move, the synchronous belt drives the wedge block to slide in the chute, and then the first switch valve 522 is connected or disconnected with the first channel 131. Similarly, the third driving end includes a driving straight rod and a wedge block connected to one end of the driving straight rod, the other end of the driving straight rod is connected to the synchronous belt, the second switch control structure is a second switch valve 622, the inclined surface of the wedge block is abutted to the second switch valve 622, a sliding groove is installed on the inner wall of the inner installation space 12 corresponding to the second channel 132, the wedge block is assembled in the sliding groove, and the wedge block can slide along the sliding groove under the driving of the synchronous belt. And, a third output gear is installed at the end of the rotating shaft of the motor, a follower gear is installed on the inner wall of the inner installation space 12 corresponding to the second channel 132, and a synchronous belt is wound around the third output gear and the follower gear. In this way, the rotating shaft of the motor rotates to drive the third output gear to rotate, the third output gear drives the synchronous belt to move, the synchronous belt drives the wedge block to slide in the chute, and the second switch valve 622 is connected or disconnected with the second channel 132.

As shown in fig. 5, 8 to 13, the assembly housing 10 of the gas-liquid mixing mechanism includes a first split housing 101, a second split housing 102, a third split housing 103, and a fourth split housing 104, which are connected in this order. The external mounting seat is formed on the first split shell 101, the first split shell 101 and the second split shell 102 are covered to form a part of the internal mounting space 12, the partition plate 80 is installed between the first split shell 101 and the second split shell 102 to divide the part of the internal mounting space 12 formed by the first split shell 101 and the second split shell 102 into two parts, and the transmission device 30 is assembled by taking the partition plate 80 as an auxiliary support; the first channel 131 and the second channel 132 are formed by the corresponding channel combination communication of the third split shell 103 and the fourth split shell 104 after the third split shell 103 and the fourth split shell 104 are covered, the pumping channel 133 is arranged on the third split shell 103, and the output channel 134 is arranged on the fourth split shell 104. In addition, in the present embodiment, the assembly housing 10 further includes a housing cover 105, the housing cover 105 and the fourth split housing 104 are combined to form the liquid storage housing 100 (wherein, the output channel 134 may be designed to pass through the liquid storage housing 100 or be designed to be parallel to the liquid storage housing 100), and the first channel 131 is opened in the fourth split housing 104. Alternatively, the reservoir 100 may be a separate tank, which is in communication with the first channel 131 via a pipeline.

As shown in fig. 16 and 17, the gas-liquid mixing mechanism further includes a diaphragm valve structure 70, the diaphragm valve structure 70 is assembled in the internal installation space 12, the diaphragm valve structure 70 includes a frame 71, a first diaphragm 72, a second diaphragm 73 and a third diaphragm 74, the first diaphragm 72, the second diaphragm 73 and the third diaphragm 74 are all connected to the frame 71, specifically, the first diaphragm 72 is the aforementioned one-way valve, the second diaphragm 73 corresponds to the first channel 131 to connect or disconnect the first channel 131 and the pumping channel 133, and the third diaphragm 74 corresponds to the second channel 132 to connect or disconnect the second channel 132 and the pumping channel 133. As shown in fig. 11 and 12, the first diaphragm 72, the second diaphragm 73, and the third diaphragm 74 are mounted corresponding to the three-way rib 1031 integrally formed with the third split case 103, and a transitional assembly space is formed between the third split case 103 and the fourth split case 104 after the third split case 103 and the fourth split case 104 are covered, in which the diaphragm valve structure 70 is mounted, and the three-way rib 1031 divides the transitional assembly space into three mutually independent spaces. During pumping action of the plunger 42: the first diaphragm 72 disconnects the output channel 134 from the pumping channel 133 (i.e. the check valve is closed), the second diaphragm 73 communicates the first channel 131 with the pumping channel 133, and the third diaphragm 74 communicates the second channel 132 with the pumping channel 133, and at the same time, the first opening and closing device 50 communicates the first channel 131 with the liquid storage bin 100, and the second opening and closing device 60 disconnects the second channel 132 from the external environment, so that liquid pumping is realized at this time; or the first diaphragm 72 disconnects the output channel 134 from the pumping channel 133 (i.e. the check valve is closed), the second diaphragm 73 communicates the first channel 131 with the pumping channel 133, and the third diaphragm 74 communicates the second channel 132 with the pumping channel 133, and at the same time, the first opening and closing device 50 disconnects the first channel 131 from the liquid storage bin 100, and the second opening and closing device 60 communicates the second channel 132 with the external environment, so that air suction is realized. During the pushing action of the plunger 42, the first diaphragm 72 communicates the output channel 134 with the pumping channel 133 (the check valve is opened), the second diaphragm 73 disconnects the pumping channel 133 from the first channel 131, and the third diaphragm 74 disconnects the pumping channel 133 from the second channel 132, so that during the pushing output of the plunger 42, the second diaphragm 73 seals the first switching valve 522 to the section of the first channel 131 of the transitional assembly space, and the third diaphragm 74 seals the second switching valve 622 to the section of the second channel 132 of the transitional assembly space, so that the liquid or gas sucked into the pumping channel 133 by the plunger 42 during the pushing output does not enter the section of the first channel 131 and the section of the second channel 132, so that the liquid or gas in the pumping channel 133 is all output from the output channel 134, and at this time, the check valve is opened.

In order to accurately and automatically control the driving device 20 to perform variable speed work, the driving device 20 adopts a motor to provide driving force as an example so as to accurately control the gas-liquid mixing mechanism to mix and proportion target liquid and air, therefore, the gas-liquid mixing mechanism also comprises a control module, the control module is electrically connected with the driving device 20, and the control module is used for controlling the output rotating speed of the motor.

In the first embodiment, the electronic cigarette is further provided with an atomizing nozzle (not shown), the atomizing nozzle is installed at the output port of the output channel 134, and the atomizing nozzle is located in the heating cavity 14, and further the atomizing nozzle is installed towards the heating device 305, so that the tobacco tar output by the output channel 134 can be atomized into fine droplets by the atomizing nozzle and then sprayed to the heating device 305 for heating to generate smoke, thus heating the tobacco tar more fully, and the efficiency of converting the tobacco tar into the smoke by heating is higher.

Further, the electronic cigarette further comprises a lithium battery module 90, and the lithium battery module 90 can be repeatedly charged and discharged for recycling, namely, the electronic cigarette can be recycled. Specifically, the lithium battery module 90 is installed in the installation space, and the control module 307, the negative pressure detector 303, the heating device 305, and the driving device 20 of the gas-liquid mixing mechanism 200 are all electrically connected with the lithium battery module 90, and the lithium battery module 90 provides working energy. By using the lithium battery module 90, the electronic cigarette can be repeatedly charged and discharged to realize recycling.

Fig. 19 is a block diagram showing a design structure of an electronic cigarette according to a second embodiment of the present invention. Compared with the electronic cigarette of the first embodiment, the electronic cigarette of the second embodiment has the following differences.

In the second embodiment, the first opening and closing device 50, the second opening and closing device 60 and the check valve are all electrically controlled valve devices controlled by the control module 307. At this time, a control program is written in the control module 307 in advance, and a negative pressure detection signal generated by the suction action of the user is detected by the negative pressure detector 303 in the control module 307, so that the control module 307 starts the operation, and the time required for the plunger 42 to complete one stroke movement is calculated according to the four-stroke pumping operation process of the plunger 42 in the pumping channel 133, the torque output by the driving device 20, the transmission ratio of the transmission device 30, and the like, so that the sequence of sequentially opening the three electric control valves is controlled according to the time.

The electronic cigarette of the second embodiment is identical to the electronic cigarette of the first embodiment except for the above structure, so that the description thereof is omitted.

The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.

Claims

1. An electronic cigarette, comprising:

The shell is connected with the suction nozzle, the shell is provided with an installation space and a heating cavity which are mutually independent, the suction nozzle is communicated with the installation space and the heating cavity, and the shell is provided with a vent hole for communicating the installation space with the atmosphere;

The control module is installed in the installation space;

The negative pressure detector is arranged in the installation space and is electrically connected with the control module;

the heating device is arranged in the heating cavity and is electrically connected with the control module;

The gas-liquid mixing mechanism is arranged in the installation space, and the gas-liquid mixing mechanism is controlled by the control module to work so as to convey quantitative tobacco tar or quantitative air to the heating cavity;

The gas-liquid mixing mechanism comprises:

The assembly shell is provided with a first channel, a second channel, a pumping channel and an output channel, wherein one ends of the first channel, the second channel and the output channel are communicated with the pumping channel, the other end of the second channel is communicated with the installation space, and the other end of the output channel is communicated with the heating cavity;

the liquid storage bin is communicated with the other end of the first channel;

The pumping device is arranged on the pumping channel and is used for enabling the pumping channel to form suction negative pressure or pumping positive pressure;

The first opening and closing device is arranged on the first channel and is used for communicating or closing the first channel;

the second opening and closing device is arranged on the second channel and is used for communicating or closing the second channel;

The driving device is connected with the pumping device through a transmission device to output power, and is electrically connected with the control module;

The one-way valve is arranged on the output channel and is used for communicating or closing the output channel;

wherein the output channel, the first channel and the second channel are alternatively communicated according to a preset sequence;

The pumping device comprises a first transmission end and a plunger connected to the first transmission end, the transmission device is connected with the first transmission end, and the driving device drives the first transmission end to move through the transmission device so that the first transmission end drives the plunger to reciprocate in the pumping channel;

The first opening and closing device comprises a second transmission end and a first switch valve, the transmission device is connected with the second transmission end, and the driving device drives the second transmission end to move through the transmission device so that the second transmission end drives the first switch valve to be opened or closed;

The second opening and closing device comprises a third transmission end and a second switch valve, the transmission device is connected with the third transmission end, and the driving device drives the third transmission end to move through the transmission device, so that the third transmission end drives the second switch valve to be opened or closed.

2. The electronic cigarette of claim 1, wherein the electronic cigarette comprises a portion of the electronic cigarette,

The first transmission end comprises a gear part and a cam part, the gear part and the rotation axis of the cam part are coaxial and synchronously rotate, the transmission device is a transmission gear set, the gear part is meshed with an output gear of the transmission gear set, a transmission groove is formed in the end portion of the plunger, facing the transmission device, of the plunger, the cam part is assembled in the transmission groove, and the cam part drives the plunger to reciprocate in the pumping channel.

3. The electronic cigarette of claim 1, wherein the electronic cigarette comprises a portion of the electronic cigarette,

The second transmission end comprises a first meshing gear and a first cam rod, the transmission device is a transmission gear set, the first meshing gear is meshed with an output gear of the transmission gear set, the first end of the first cam rod is fixedly connected with the first meshing gear and is coaxial with the rotation axis of the first meshing gear, the first switch valve is arranged in the first channel, and the cam-shaped circumferential side wall of the second end of the first cam rod abuts against the first switch valve to drive the first switch valve to be communicated or close the first channel.

4. The electronic cigarette of claim 1, wherein the electronic cigarette comprises a portion of the electronic cigarette,

The third transmission end comprises a second meshing gear and a second cam rod, the transmission device is a transmission gear set, the second meshing gear is meshed with an output gear of the transmission gear set, a first end of the second cam rod is fixedly connected with the second meshing gear and is coaxial with a rotation axis of the second meshing gear, the second switching valve is arranged in the second channel, and a cam-shaped circumferential side wall of the second end of the second cam rod abuts against the second switching valve to drive the second switching valve to be communicated or close the second channel.

5. The electronic cigarette according to claim 1 or 2, wherein,

The gas-liquid mixing mechanism further comprises a diaphragm valve structure, the diaphragm valve structure is assembled in the assembly shell, the diaphragm valve structure comprises a frame body, a first diaphragm, a second diaphragm and a third diaphragm, the first diaphragm, the second diaphragm and the third diaphragm are all connected to the frame body, the first diaphragm is a one-way valve, the second diaphragm corresponds to the first channel to be communicated or closed, the first channel and the pumping channel are communicated or closed, and the third diaphragm corresponds to the second channel to be communicated or closed, and the second channel and the pumping channel are communicated or closed.

6. The electronic cigarette according to claim 1 or 2, wherein,

The first opening and closing device and the second opening and closing device are electromagnetic control valves, and the first opening and closing device and the second opening and closing device are electrically connected with the control module.

7. The electronic cigarette of claim 6, wherein the electronic cigarette comprises a portion of the electronic cigarette,

The one-way valve is also an electromagnetic control valve and is electrically connected with the control module.

8. The electronic cigarette of claim 1, wherein the electronic cigarette comprises a portion of the electronic cigarette,

The electronic cigarette further comprises an atomizing nozzle, the atomizing nozzle is arranged at the output port of the output channel, the atomizing nozzle is positioned in the heating cavity, and the atomizing nozzle faces the heating device.