Piston module and atomizer

Abstract

The utility model relates to the technical field of atomizers, in particular to a piston module and an atomizer. The piston module comprises a driving assembly, a first piston assembly and a second piston assembly; the driving assembly comprises a driver and an eccentric shaft; the first piston assembly comprises a first piston arm and a first piston pipe, a first bending part is arranged on the first piston arm, and the eccentric shaft is sleeved with the first piston arm; the second piston assembly comprises a second piston arm and a second piston tube, a second bending part is arranged on the second piston arm, and the second piston arm is arranged on the eccentric shaft in a sleeving manner; the first piston arm and the second piston arm extend on the eccentric shaft in the opposite directions, the extending tail ends of the first piston arm and the second piston arm are located on the same horizontal plane, the driver is used for driving the eccentric shaft to rotate, and the eccentric shaft drives the first piston arm to do telescopic motion in the first piston pipe. The eccentric shaft further drives the second piston arm to do telescopic motion in the second piston pipe. The structure is beneficial to miniaturization design of the atomizer.

Description

Technical Field

[0001] The utility model relates to the technical field of atomizers, in particular to a piston module and an atomizer. Background Art

[0002] Dual-cylinder atomizers are widely used because of their large air flow, stable operation and low noise. During the working process, a piston compressor alternately generates compressed gas to continuously supply the atomization tube.

[0003] At present, the piston compressor drives two piston arms to perform telescopic motion alternately to generate compressed air through a driver. Due to the misaligned arrangement of the two piston arms on the driver, the compressed air outlets on both sides of the compressor are also misaligned structures. When integrating the compressor into the housing, a larger housing is required, which in turn leads to an increase in the overall volume of the dual-cylinder atomizer and is not conducive to the miniaturization design of the atomizer. Summary of the Utility Model

[0004] The technical problem to be solved in the embodiment of the utility model is to provide a piston module and an atomizer to solve the problem that the symmetry of the dual-cylinder atomizer in the prior art is poor, and a larger housing is required when integrating the compressor into the housing, which in turn leads to an increase in the overall volume of the dual-cylinder atomizer and is not conducive to the miniaturization design of the atomizer.

[0005] The utility model discloses a piston module, comprising: a driving component, a first piston component and a second piston component. The driving component includes a driver and an eccentric shaft arranged on the driver; the first piston component includes a first piston arm and a first piston tube which are hermetically connected. A first bending part is arranged on the first piston arm, and the first piston arm is sleeved on the eccentric shaft; the second piston component includes a second piston arm and a second piston tube which are hermetically connected. A second bending part is arranged on the second piston arm, and the second piston arm is sleeved on the eccentric shaft; the first piston arm and the second piston arm respectively extend in opposite directions on the eccentric shaft, and the extending ends of the first piston arm and the second piston arm are located on the same horizontal plane so that the first piston tube and the second piston tube correspond to each other; the driver is used to drive the eccentric shaft to rotate, the eccentric shaft drives the first piston arm to perform telescopic motion in the first piston tube to generate first compressed air, and the eccentric shaft also drives the second piston arm to perform telescopic motion in the second piston tube to generate second compressed air.

[0006] Optionally, the first piston arm includes a first mounting disc, a first piston rod, and a first mounting head connected in sequence. The second piston arm includes a second mounting disc, a second piston rod, and a second mounting head connected in sequence. The first mounting disc and the second mounting disc are both sleeved on the eccentric shaft. The first bending portion is provided on the first piston rod, and the second bending portion is provided on the second piston rod. The first mounting head is sealingly connected to the first piston tube, and the second mounting head is sealingly connected to the second piston tube. The first mounting head and the second mounting head are located on the same horizontal plane.

[0007] Optionally, the first piston tube is provided with a first accommodation cavity, a first air port and a second air port respectively communicating with the first accommodation cavity. The second piston tube is provided with a second accommodation cavity, a third air port and a fourth air port respectively communicating with the second accommodation cavity. The first mounting head is sealingly connected to the first accommodation cavity, and the second mounting head is sealingly connected to the second accommodation cavity.

[0008] Optionally, a first piston disc is provided at one end of the first mounting head. The first piston disc is sealingly connected to the first accommodation cavity. A second piston disc is provided at one end of the second mounting head. The second piston disc is sealingly connected to the second accommodation cavity.

[0009] Optionally, a first mounting hole is formed at one end of the first mounting head. A first pressing disc is provided on the side of the first piston disc facing away from the first mounting head. A first fastener is provided on the first pressing disc. The first fastener passes through the first pressing disc and is threadedly connected to the first mounting hole. A second mounting hole is formed at one end of the second mounting head. A second pressing disc is provided on the side of the second piston disc facing away from the second mounting head. A second fastener is provided on the second pressing disc. The second fastener passes through the second pressing disc and is threadedly connected to the second mounting hole.

[0010] Optionally, the piston module further includes: a base, a first fixing member, and a second fixing member. The first fixing member and the second fixing member are provided on opposite sides of the base. The driver is provided on the side of the base facing away from the first fixing member. The drive shaft of the driver passes through the base and extends out from the base. The eccentric shaft is provided on the drive shaft. The first piston tube is provided on the first fixing member, and the second piston tube is provided on the second fixing member.

[0011] Optionally, third fasteners are provided on both the first fixing member and the second fixing member. The third fasteners are used to connect the first fixing member and the base, and the second fixing member and the base.

[0012] Optionally, a convex groove is formed on one side of the base close to the first fixing member; a third fixing portion is provided on the bottom of the convex groove on the side away from the first fixing member, and the fixing portion includes a first mounting portion and a second mounting portion connected to each other, the first mounting portion is connected to the bottom of the convex groove through a fourth fastener, the second mounting portion is inserted into the driver, and the circuit board of the driver is connected to the first mounting portion through a fifth fastener.

[0013] Optionally, the driver adopts a brushless motor.

[0014] The utility model also discloses an atomizer, comprising the piston module mentioned above.

[0015] Compared with the prior art, the piston assembly and the atomizer provided by the embodiment of the utility model have the following beneficial effects:

[0016] The driver can drive the eccentric shaft to rotate on the driver, and the first piston arm and the second piston arm are both sleeved on the eccentric shaft, and the first piston arm and the second piston arm extend in opposite directions on the eccentric shaft, so that the first piston arm can perform telescopic movement in the first piston tube and the second piston arm can perform telescopic movement in the second piston tube, thereby achieving the purpose of generating the first compressed gas and the second compressed gas. By setting the first bending portion on the first piston arm and the second bending portion on the second piston arm, the extended ends of the first piston arm and the second piston arm are located on the same horizontal plane, and the first piston tube and the second piston tube are symmetrical to each other, and the positions of the first compressed air and the second compressed air output along the first piston tube and the second piston tube are corresponding, therefore, the positions of the first piston tube and the second piston tube of the piston module of the utility model are symmetrical, which strengthens the overall integration of the piston assembly, thereby reducing the overall volume of the atomizer, and is conducive to the miniaturization design of the atomizer. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The technical solution of the utility model will be further described in detail below with reference to the accompanying drawings and embodiments, in which:

[0018] Figure 1 It is a schematic diagram of the overall structure of the piston module provided by the embodiment of the utility model;

[0019] Figure 2 It is a top view of a first piston assembly and a second piston assembly provided by an embodiment of the utility model;

[0020] Figure 3 yes Figure 2 AA section view;

[0021] Figure 4 is a top view of a piston module provided in an embodiment of the utility model;

[0022] Figure 5 is Figure 4 the A-A sectional view of;

[0023] Figure 6 is the exploded view of the first piston assembly provided by the embodiment of the present utility model;

[0024] Figure 7 is the exploded view of the second piston assembly provided by the embodiment of the present utility model.

[0025] The reference numerals in the figure are as follows:

[0026] 110, driver; 111, drive shaft; 112, circuit board; 120, eccentric shaft; 20, first piston assembly; 210, first piston arm; 211, first mounting disc; 212, first piston rod; 2121, first bending portion; 213, first mounting head; 2131, first piston disc; 2132, first mounting hole; 2133, first pressing disc; 2134, first fastener; 220, first piston tube; 2201, first accommodating cavity; 2202, first air port; 2203, second air port; 30, second piston assembly; 310, second piston arm; 311, second mounting disc; 312, second piston rod; 3121, second bending portion; 313, second mounting head; 3131, second piston disc; 3132, second mounting hole; 3133, second pressing disc; 3134, second fastener; 320, second piston tube; 3201, second accommodating cavity; 3202, third air port; 3203, fourth air port; 40, base; 410, first fixing member; 420, second fixing member; 411, third fastener; 401, convex groove; 430, third fixing portion; 431, first mounting portion; 432, second mounting portion; 412, fourth fastener. Detailed implementation manners

[0027] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. Now, with reference to the drawings, the preferred embodiments of the present utility model will be described in detail.

[0028] The embodiment of the present utility model provides a piston module, as Figures 1 to 7As shown in the figure, it includes a driving component, a first piston assembly 20 and a second piston assembly 30, which includes a driver 110 and an eccentric shaft 120 provided on the driver 110; the first piston assembly 20 includes a first piston arm 210 and a first piston tube 220 that are hermetically connected. A first bending portion 2121 is provided on the first piston arm 210, and the first piston arm 210 is sleeved on the eccentric shaft 120; the second piston assembly 30 includes a second piston arm 310 and a second piston tube 320 that are hermetically connected. A second bending portion 3121 is provided on the second piston arm 310, and the second piston arm 310 is sleeved on the eccentric shaft 120; the first piston arm 210 and the second piston arm 310 extend in opposite directions along the eccentric shaft 120, and the extending ends of the first piston arm 210 and the second piston arm 310 are located on the same horizontal plane, so that the first piston tube 220 and the second piston tube 320 correspond to each other; the driver 110 is used to drive the eccentric shaft 120 to rotate. The eccentric shaft 120 drives the first piston arm 210 to perform telescopic movement in the first piston tube 220 to generate first compressed air, and the eccentric shaft 120 also drives the second piston arm 310 to perform telescopic movement in the second piston tube 320 to generate second compressed air.

[0029] For the piston assembly of this embodiment, when the driver 110 works, it can drive the eccentric shaft 120 to rotate on the driver 110. The first piston arm 210 and the second piston arm 310 are both sleeved on the eccentric shaft 120, and the first piston arm 210 and the second piston arm 310 extend in opposite directions along the eccentric shaft 120, which can realize the telescopic movement of the first piston arm 210 in the first piston tube 220 and the telescopic movement of the second piston arm 310 in the second piston tube 320, and then achieve the purpose of generating the first compressed gas and the second compressed gas. By providing the first bending portion 2121 on the first piston arm 210 and the second bending portion 3121 on the second piston arm 310, the extending ends of the first piston arm 210 and the second piston arm 310 are located on the same horizontal plane, and the first piston tube 220 and the second piston tube 320 are symmetrical to each other. Then the positions of the first compressed air and the second compressed air output along the first piston tube 220 and the second piston tube 320 correspond to each other. Therefore, the positions of the first piston tube 220 and the second piston tube 320 of the piston module of the present invention are symmetrical to each other, which strengthens the overall integration of the piston assembly, thereby reducing the overall volume of the atomizer and facilitating the miniaturized design of the atomizer.

[0030] The process of the piston assembly of this embodiment working to generate the first compressed air and the second compressed air:

[0031] When the eccentric shaft 120 pushes the first piston arm 210 into the first piston tube 220, the air in the first piston tube 220 is compressed to output the first compressed air, and the first compressed air is output along the first piston tube 220. At the same time, the eccentric shaft 120 pushes the second piston arm 310 to retract from the second piston tube 320, sucking the external air into the second piston tube 320. As the eccentric shaft 120 rotates, when it pushes the first piston arm 210 to retract from the first piston tube 220, the external air is sucked into the first piston tube 220. At the same time, the eccentric shaft 120 pushes the second piston arm 310 into the second piston tube 320, and the air in the second piston tube 320 is compressed to output the second compressed air, and the second compressed air is output along the second piston tube 320. Under the continuous operation of the driver 110, the first piston assembly 20 and the second piston assembly 30 are driven to alternately generate the first compressed air and the second compressed air. The first compressed air and the second compressed air are conveyed to the atomizing tube.

[0032] The above-mentioned eccentric shaft 120 is respectively rotationally connected to the first piston arm 210 and the second piston arm 310, so as to realize the purpose of the eccentric shaft 120 driving the first piston arm 210 and the second piston arm 310 to perform telescopic movements. The axis of the eccentric shaft 120 is separated from the axis of the drive shaft 111 of the driver 110, so as to realize the purpose that the axis of the eccentric shaft 120 and the axis of the drive shaft 111 of the driver 110 are not collinear.

[0033] As a preferred solution of this embodiment, referring to Figure 2 and Figure 3 , the first piston arm 210 includes a first mounting disc 211, a first piston rod 212 and a first mounting head 213 connected in sequence, and the second piston arm 310 includes a second mounting disc 311, a second piston rod 312 and a second mounting head 313 connected in sequence; both the first mounting disc 211 and the second mounting disc 311 are sleeved on the eccentric shaft 120, a first bending portion 2121 is provided on the first piston rod 212, a second bending portion 3121 is provided on the second piston rod 312, the first mounting head 213 is hermetically connected to the first piston tube 220, the second mounting head 313 is hermetically connected to the second piston tube 320, and the first mounting head 213 and the second mounting head 313 are located on the same horizontal plane.

[0034] In this embodiment, a structural example of the first piston arm 210 and the second piston arm 310 is given. Specifically, the first mounting plate 211 of the first piston arm 210 and the second mounting plate 311 of the second piston arm 310 are configured to be disposed on the eccentric shaft 120 to achieve a stable connection with the eccentric shaft 120. The first bending portion 2121 of the first piston rod 212 and the second bending portion 3121 of the second piston rod 312 are used to adjust the positions of the first mounting head 213 and the second mounting head 313 at the extending ends of the first piston arm 210 and the second piston arm 310, so that the first mounting head 213 and the second mounting head 313 are located on the same horizontal plane, thereby achieving the purpose of symmetry of the corresponding first piston tube 220 and the second piston tube 320. The first mounting head 213 and the second mounting head 313 are respectively used to achieve a sealed connection with the first piston tube 220 and the second piston tube 320.

[0035] As a preferred solution of this embodiment, referring to Figure 6 and Figure 7 , a first accommodating cavity 2201, a first air port 2202 and a second air port 2203 respectively communicating with the first accommodating cavity 2201 are provided on the first piston tube 220; a second accommodating cavity 3201, a third air port 3202 and a fourth air port 3203 respectively communicating with the second accommodating cavity 3201 are provided on the second piston tube 320; the first mounting head 213 is hermetically connected to the first accommodating cavity 2201, and the second mounting head 313 is hermetically connected to the second accommodating cavity 3201.

[0036] Among them, a structural example of the first piston tube 220 and the second piston tube 320 is given in this embodiment. The first accommodating cavity 2201 on the first piston tube 220 provides an installation environment for the first mounting head 213, so that the first mounting head 213 is hermetically connected to the first accommodating cavity 2201. The settings of the first air port 2202 and the second air port 2203 are used to achieve the communication between the first piston assembly 20 and the outside. Specifically, when the first mounting head 213 moves telescopically in the first piston tube 220, external air enters the first piston tube 220 along the first air port 2202, and the generated first compressed air is output along the second air port 2203; the second accommodating cavity 3201 on the second piston tube 320 provides an installation environment for the second mounting head 313, so that the second mounting head 313 is hermetically connected to the second accommodating cavity 3201. The settings of the third air port 3202 and the fourth air port 3203 are used to achieve the communication between the second piston assembly 30 and the outside. Specifically, when the second mounting head 313 moves telescopically in the second piston tube 320, external air enters the second piston tube 320 along the third air port 3202, and the generated second compressed air is output along the fourth air port 3203. The purpose of continuously generating the first compressed air and the second compressed air by the first piston assembly 20 and the second piston assembly 30 is achieved.

[0037] The above-mentioned first air inlet 2202 and second air inlet 2203 are each separately connected to the first accommodation cavity 2201, so that external air and the first compressed air flow through different air flow channels. Similarly, the above-mentioned third air inlet 3202 and fourth air inlet 3203 are each separately connected to the second accommodation cavity 3201, so that external air and the second compressed air flow through different air flow channels.

[0038] As a preferred solution of this embodiment, referring to Figure 2 and Figure 3 , one end of the first mounting head 213 is provided with a first piston disc 2131, and the first piston disc 2131 is sealingly connected to the first accommodation cavity 2201. One end of the second mounting head 313 is provided with a second piston disc 3131, and the second piston disc 3131 is sealingly connected to the second accommodation cavity 3201.

[0039] In this embodiment, a structural cooperation example of the first mounting head 213 and the first piston tube 220, as well as the second mounting head 313 and the second piston tube 320, is given. Specifically, one end of the first mounting head 213 is provided with a first piston disc 2131. By sealingly connecting the first piston disc 2131 to the first accommodation cavity 2201, the purpose of sealingly connecting the first mounting head 213 and the first piston tube 220 is achieved, ensuring the airtight connection between the first piston disc 2131 and the first piston tube 220, and improving the smoothness of the telescopic movement of the first piston disc 2131 in the first piston tube 220. One end of the second mounting head 313 is provided with a second piston disc 3131. By sealingly connecting the second piston disc 3131 to the second accommodation cavity 3201, the purpose of sealingly connecting the second mounting head 313 and the second piston tube 320 is achieved, ensuring the airtight connection between the second piston disc 3131 and the second piston tube 320, and improving the smoothness of the telescopic movement of the second piston disc 3131 in the second piston tube 320. Thus, the purpose of alternately generating compressed gas by the first piston assembly 20 and the second piston assembly 30 is achieved.

[0040] The above-mentioned first piston disc 2131 and second piston disc 3131 can be made of a sealing material, such as rubber.

[0041] As a preferred solution of this embodiment, referring to Figure 6 and Figure 7, one end of the first mounting head 213 is formed with a first mounting hole 2132. On the side of the first piston disk 2131 facing away from the first mounting head 213, a first pressing disk 2133 is provided. A first fastener 2134 is provided on the first pressing disk 2133. The first fastener 2134 passes through the first pressing disk 2133 and is threadedly connected to the first mounting hole 2132. One end of the second mounting head 313 is formed with a second mounting hole 3132. On the side of the second piston disk 3131 facing away from the second mounting head 313, a second pressing disk 3133 is provided. A second fastener 3134 is provided on the second pressing disk 3133. The second fastener 3134 passes through the second pressing disk 3133 and is threadedly connected to the second mounting hole 3132.

[0042] On the side of the first piston disk 2131 facing away from the first mounting head 213, a first pressing disk 2133 is provided, and the first fastener 2134 is passed through the first pressing disk 2133 and threadedly connected to the first mounting hole 2132 of the first mounting head 213, so as to achieve the purpose of strengthening the connection strength between the first piston disk 2131 and the first mounting head 213. On the side of the second piston disk 3131 facing away from the second mounting head 313, a second pressing disk 3133 is provided, and the second fastener 3134 is passed through the second pressing disk 3133 and threadedly connected to the second mounting hole 3132 of the second mounting head 313, so as to achieve the purpose of strengthening the connection strength between the first piston disk 2131 and the second mounting head 313. The above structure strengthens the self-connection stability of the first piston assembly 20 and the second piston assembly 30 in this embodiment, thereby improving its working stability.

[0043] As a preferred solution of this embodiment, referring to Figure 1 , Figure 4 and Figure 5 , the piston module further includes: a base 40, a first fixing member 410, and a second fixing member 420. The first fixing member 410 and the second fixing member 420 are disposed on opposite sides of the base 40. The driver 110 is disposed on the side of the base 40 facing away from the first fixing member 410. The drive shaft 111 of the driver 110 passes through the base 40 and extends out from the base 40. The eccentric shaft 120 is disposed on the drive shaft 111. The first piston tube 220 is disposed on the first fixing member 410, and the second piston tube 320 is disposed on the second fixing member 420.

[0044] Among them, the setting of the base 40 can improve the overall integration and connection stability of the piston module. Specifically, the driver 110 is fixed on the base 40. The first fixing member 410 and the second fixing member 420 are disposed on the side of the base 40 facing away from the driver 110. The first piston tube 220 is disposed on the first fixing member 410 and is fixed on the base 40 through the first fixing member 410. The second piston tube 320 is disposed on the second fixing member 420 and is fixed on the base 40 through the second fixing member 420.

[0045] As a preferred solution of this embodiment, referring to Figure 1 and Figure 4 , third fasteners 411 are provided on both the first fixing member 410 and the second fixing member 420. The third fasteners 411 are used to connect the first fixing member 410 and the base 40, and the second fixing member 420 and the base 40.

[0046] Among them, the fixing strength of the first fixing member 410 and the second fixing member 420 on the base 40 is achieved through the third fasteners 411, and the setting stability of the first piston tube 220 and the second piston tube 320 on the base 40 is further improved, and the stability of the piston module during operation is improved.

[0047] As a preferred solution of this embodiment, referring to Figure 4 and Figure 5 , a convex groove 401 is formed on one side of the base 40 close to the first fixing member 410; a third fixing portion 430 is provided on the side of the bottom of the convex groove 401 facing away from the first fixing member 410. The third fixing portion 430 includes a first mounting portion 431 and a second mounting portion 432 that are connected to each other. The first mounting portion 431 is connected to the bottom of the convex groove 401 through a fourth fastener 412. The second mounting portion 432 is inserted into the driver 110, and the circuit board 112 of the driver 110 is connected to the first mounting portion 431 through a fifth fastener (not shown in the figure).

[0048] Among them, the above settings improve the connection integration and connection strength between the driver 110 and the base 40. Specifically, the first mounting portion 431 of the third fixing portion 430 is connected to the bottom of the convex groove 401 through the fourth fastener 412, and the second mounting portion 432 is inserted into the driver 110 to be connected to the driver 110, strengthening the connection strength of the driver 110 on the base 40. At the same time, the circuit board 112 of the driver 110 is connected to the first mounting portion 431 through a fifth fastener (not shown in the figure), improving the connection strength between the driver 110 and the third fixing portion 430, and further improving the overall stability of the piston module and ensuring the working stability of the piston module.

[0049] As a preferred solution of this embodiment, the driver 110 uses a brushless motor.

[0050] The brushless motor has no brush friction loss, so it has a higher working efficiency. At the same time, it has the advantages of small size, light weight, large output power, stable operation, and low noise. The working efficiency of the piston module is improved.

[0051] The embodiment of the present application also discloses an atomizer, which includes the piston module in the foregoing embodiment. This atomizer has the same structure and beneficial effects as the piston module in the foregoing embodiment. The structure and beneficial effects of the piston module have been described in detail in the foregoing embodiment and will not be elaborated herein.

[0052] It should be understood that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Those skilled in the art can modify the technical solutions described in the above embodiments or equivalently replace some of the technical features therein; and all such modifications and replacements should fall within the protection scope of the appended claims of the present invention.

Claims

1. A piston module, characterized in that: include: A driving assembly, comprising a driver and an eccentric shaft disposed on the driver; A first piston assembly comprises a first piston arm and a first piston tube which are sealed and connected to each other, wherein the first piston arm is provided with a first bending portion, and the first piston arm is sleeved on the eccentric shaft; A second piston assembly comprises a second piston arm and a second piston tube which are sealed and connected to each other, wherein the second piston arm is provided with a second bending portion, and the second piston arm is sleeved on the eccentric shaft; The first piston arm and the second piston arm extend in opposite directions on the eccentric shaft respectively, and the extended ends of the first piston arm and the second piston arm are located on the same horizontal plane, so that the first piston tube and the second piston tube correspond to each other; the driver is used to drive the eccentric shaft to rotate, and the eccentric shaft drives the first piston arm to perform telescopic movement in the first piston tube to generate first compressed air, and the eccentric shaft also drives the second piston arm to perform telescopic movement in the second piston tube to generate second compressed air.

2. The piston module according to claim 1, characterized in that: The first piston arm comprises a first mounting plate, a first piston rod and a first mounting head connected in sequence, and the second piston arm comprises a second mounting plate, a second piston rod and a second mounting head connected in sequence; The first mounting plate and the second mounting plate are both sleeved on the eccentric shaft, the first bending portion is arranged on the first piston rod, the second bending portion is arranged on the second piston rod, the first mounting head is sealedly connected to the first piston tube, the second mounting head is sealedly connected to the second piston tube, and the first mounting head and the second mounting head are located on the same horizontal plane.

3. The piston module according to claim 2, characterized in that: The first piston tube is provided with a first accommodating cavity, a first air port and a second air port respectively connected with the first accommodating cavity; The second piston tube is provided with a second accommodating cavity, a third gas port and a fourth gas port respectively connected to the second accommodating cavity; The first mounting head is sealed and connected to the first accommodating cavity, and the second mounting head is sealed and connected to the second accommodating cavity.

4. The piston module according to claim 3, characterized in that: A first piston disc is disposed at one end of the first mounting head and is sealedly connected to the first accommodating cavity. A second piston disc is disposed at one end of the second mounting head and is sealedly connected to the second accommodating cavity.

5. The piston module according to claim 4, characterized in that: A first mounting hole is formed at one end of the first mounting head, a first clamping plate is arranged on the side of the first piston disc facing away from the first mounting head, a first fastener is arranged on the first clamping plate, and the first fastener passes through the first clamping plate and is threadedly connected to the first mounting hole; a second mounting hole is formed at one end of the second mounting head, a second clamping plate is arranged on the side of the second piston disc facing away from the second mounting head, a second fastener is arranged on the second clamping plate, and the second fastener passes through the second clamping plate and is threadedly connected to the second mounting hole.

6. The piston module according to claim 5, characterized in that: The piston module also includes: A base, a first fixing member and a second fixing member, wherein the first fixing member and the second fixing member are arranged on two opposite sides of the base; The driver is arranged on a side of the base away from the first fixing member, a driving shaft of the driver passes through the base and extends out from the base, and the eccentric shaft is arranged on the driving shaft; The first piston tube is arranged on the first fixing member, and the second piston tube is arranged on the second fixing member.

7. The piston module according to claim 6, characterized in that: The first fixing member and the second fixing member are both provided with a third fastener, and the third fastener is used to connect the first fixing member and the base and the second fixing member and the base.

8. The piston module according to claim 6, characterized in that: A convex groove is formed on one side of the base close to the first fixing member; a third fixing portion is provided on the bottom of the convex groove on the side away from the first fixing member, and the third fixing portion includes a first mounting portion and a second mounting portion connected to each other, the first mounting portion is connected to the bottom of the convex groove by a fourth fastener, the second mounting portion is inserted into the driver, and the circuit board of the driver is connected to the first mounting portion by a fifth fastener.

9. The piston module according to claim 1, characterized in that: The driver adopts a brushless motor.

10. An atomizer, characterized in that: A piston module comprising any one of claims 1 to 9.

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