Fragrance diffuser

Abstract

The utility model relates to the technical field of fragrance spreading machines, and particularly discloses a fragrance spreading machine, which is characterized in that a limiting device is arranged between a barrel body and an atomization assembly, at least one sealing element is arranged in the limiting device, and when the atomization assembly is connected with the barrel body, an inner barrel and the atomization assembly are respectively and horizontally attached to the upper end and the lower end of the sealing element; in this way, when the atomization assembly and the barrel body are installed or detached in a rotating mode, the sealing piece cannot be driven to be distorted and deformed accordingly, the sealing effect between the atomization assembly and the inner barrel cannot be affected, and then the leakproofness of an airflow channel located in the inner barrel can be effectively guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of aroma diffuser technology, and in particular to an aroma diffuser. Background Technology

[0002] A diffuser, also known as an aromatherapy diffuser or air freshener, is a device that converts liquid essential oils into gas molecules that diffuse and evaporate into the air.

[0003] To maximize space for the air pump, existing aroma diffusers typically feature an atomizing component at the top and the air pump at the bottom. The main structure includes a cylinder with an inner and outer cylinder, an atomizing component connected to the top of the cylinder, an atomizing coil inside the atomizing component, an essential oil bottle inside the inner cylinder, and an air pump housed in the space at the bottom of the outer cylinder. The air pump's outlet connects to the inner cylinder cavity via an air guide tube. The atomizing coil has a liquid channel connecting to the essential oil bottle and a gas channel connecting to the inner cylinder cavity. Airflow generated by the air pump is ejected from the atomizing coil's outlet, creating negative pressure that draws the essential oil from the bottle into the liquid outlet of the atomizing coil. After mixing and atomizing with the gas, the mixture is discharged from the atomizing component's outlet. Because air enters through the inner cylinder cavity, the sealing effect between the cylinder and the atomizing component determines the amount of gas entering the atomizing coil. Furthermore, to replace the essential oil bottle, the cylinder and atomizing component often use threaded or snap-fit ​​connections, which can affect the sealing effect during disassembly and installation.

[0004] To this end, Chinese utility model patent document CN220142248U discloses a novel diffuser structure, which includes a base and an outer body. The outer body contains an upper cavity and a lower cavity. An atomizing core frame is connected to the upper cavity. An inner cylinder sealing ring is fixed in a ring at the upper end of the atomizing core frame. Its function is to improve the sealing between the atomizing core frame and the inner cylinder and prevent the gas in the inner cylinder cavity from escaping from the gap between the atomizing core frame and the inner cylinder and affecting the gas supply of the atomizing core. The inner cylinder also has a corner boss on the inner side of the top. When the atomizing core frame is fixed on the inner cylinder, the corner boss squeezes the inner cylinder sealing ring to ensure the sealing between the atomizing core frame and the inner cylinder. However, in this design, the inner cylinder sealing ring is installed on the side wall of the atomizer coil holder, and a sealing effect is achieved only through oblique compression between the corner boss and the inner cylinder sealing ring. Since the atomizer coil holder and the inner cylinder are connected by threads, when connecting or disassembling them by rotation, the corner boss, due to the oblique compression, inevitably causes the inner cylinder sealing ring to twist and deform, potentially even causing it to detach from the side wall of the atomizer coil holder, thus affecting the sealing effect between the atomizer coil holder and the inner cylinder. To solve the leakage problem, some existing technologies use multiple sealing rings to seal the cylinder body and atomizing components. This solution also suffers from complex installation and the problem of incomplete sealing due to the displacement of the sealing rings during use.

[0005] The technical problem to be solved by this application is: to design a diffuser that will not cause torsional deformation of the sealing component when the atomizing device is installed or disassembled, and can effectively ensure the sealing effect between the atomizing device and the inner cylinder. Utility Model Content

[0006] In order to overcome the shortcomings of the prior art, the purpose of this utility model is to provide a diffuser that will not cause torsional deformation of the sealing component when the atomizing device is installed or disassembled, and can effectively ensure the sealing effect between the atomizing device and the inner cylinder.

[0007] The technical solution adopted by this utility model is as follows: a diffuser includes an atomizing component and a cylinder body connected to each other. The cylinder body includes an outer cylinder and an inner cylinder disposed inside the outer cylinder. An airflow channel for airflow is provided inside the inner cylinder. A limiting device is provided between the atomizing component and the cylinder body. At least one sealing element is provided on the limiting device. When the atomizing component and the cylinder body are connected, the sealing element is used to horizontally seal the gap between the cylinder body and the atomizing component.

[0008] In some embodiments, a limiting device is disposed on the top surface of the outer cylinder, and a seal is used to horizontally seal the gap between the top surface of the outer cylinder and the atomizing component.

[0009] In some embodiments, a limiting device is disposed on the top surface of the inner cylinder, and a seal is used to horizontally seal the gap between the top surface of the inner cylinder and the atomizing component.

[0010] In some embodiments, the atomizing assembly includes an end cap and a base, with an atomizing core housed within the base, an airflow channel communicating with the atomizing core, a limiting device disposed on the end cap, and a seal used to horizontally seal the gap between the cylinder body and the end cap.

[0011] In some embodiments, the atomizing assembly includes an end cap and a base, with an atomizing core disposed within the base, an airflow channel communicating with the atomizing core, a limiting device disposed on the base, and a seal used to horizontally seal the gap between the cylinder and the base.

[0012] In some embodiments, the limiting device is a limiting ring groove, and the sealing element is disposed in the limiting ring groove, with its height being greater than the depth of the limiting ring groove.

[0013] In some embodiments, the limiting device is an annular boss, and the bottom of the seal is provided with an annular groove that mates with the annular boss.

[0014] This utility model has the following technical effects: By providing a limiting device between the cylinder body and the atomizing component, and providing at least one sealing element within the limiting device, when the atomizing component is connected to the cylinder body, the inner cylinder and the atomizing component are respectively horizontally attached to the upper and lower ends of the sealing element. In this way, when the atomizing component is installed or removed from the cylinder body by rotation, the sealing element will not be twisted or deformed, thus not affecting the sealing effect between the atomizing component and the inner cylinder, thereby effectively ensuring the airtightness of the airflow channel located inside the inner cylinder. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the diffuser of Embodiment 1 of this utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the diffuser in Embodiment 1 of this utility model;

[0017] Figure 3 This is a disassembled structural diagram of the connection between the end cap and the inner cylinder of the diffuser in Embodiment 1 of this utility model;

[0018] Figure 4 This is a cross-sectional structural diagram of the aroma diffuser of Embodiment 1 of this utility model;

[0019] Figure 5 The diffuser of embodiment 1 of this utility model Figure 4 Schematic diagram of partial structure A;

[0020] Figure 6 This is a schematic diagram of the disassembled structure of the atomizing component of the aroma diffuser in Embodiment 1 of this utility model;

[0021] Figure 7 This is a schematic diagram of the bottom structure of the fog-blocking frame of the diffuser in Embodiment 1 of this utility model;

[0022] Figure 8 This is a schematic diagram of the end cap structure of the diffuser according to Embodiment 1 of this utility model;

[0023] Figure 9 This is a schematic diagram of the atomizing core structure of the aroma diffuser according to Embodiment 1 of this utility model;

[0024] Figure 10 This is a schematic diagram of the sealing component installation of the diffuser according to Embodiment 2 of this utility model;

[0025] Figure 11 This is a schematic diagram of the sealing component installation of the diffuser in Embodiment 3 of this utility model;

[0026] Figure 12 This is a schematic diagram of the base installation of the diffuser in Embodiment 4 of this utility model.

[0027] The labels and names in the diagram correspond as follows: 1. Atomizing component; 2. Cylinder body; 3. Seal; 10. End cap; 11. Base; 20. Outer cylinder; 21. Inner cylinder; 22. Oil reservoir; 12. Atomizing core; 121. Air outlet; 122. Liquid outlet; 13. Oil suction pipe; 4. Airflow channel; 110. Air inlet; 23. Air pump; 230. Air delivery pipe; 101. Limiting protrusion ring; 210. Limiting ring groove. ; 102, Annular platform; 112, partition plate; 113, diffuser hole; 114, gasket; 14, fog deflector; 140, fog deflector plate; 141, fog outlet; 142, limiting post; 115, limiting hole; 16, fog outlet channel; 17, fog outlet hole; 5, battery assembly; 6, base; 231, air inlet pipe; 8, annular boss; 30, annular groove; 116, upper connecting part; 117, lower connecting part. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Example 1: Please refer to Figure 1-9This utility model provides a technical solution: a diffuser, including an atomizing component 1 and a cylinder 2 connected to each other. The atomizing component 1 includes an end cap 10 and a base 11 connected to the end cap 10. The cylinder 2 includes an outer cylinder 20 and an inner cylinder 21 disposed within the outer cylinder 20. An oil storage bottle 22 connected to the base 11 is also disposed within the inner cylinder 21. The connection between the base 11 and the oil storage bottle 22 can be, but is not limited to, a threaded connection. The oil storage bottle 22 is mainly used to store liquid essential oils. An atomizing core 12 is disposed within the base 11, located inside the mouth of the oil storage bottle 22. The atomizing core 12 also has an air outlet 121 and a liquid outlet 122, which correspond to each other and form an angle. One end of the atomizing core 12 is provided with... The oil suction pipe 13 is interconnected with the liquid outlet 122. One end of the oil suction pipe 13 extends to the bottom of the oil storage bottle 22 to draw liquid essential oil into the atomizing core 12 and then out through the liquid outlet 122. When the oil storage bottle 22 is placed inside the inner cylinder 21, it is located inside the inner cylinder 21 through connection with the base 11. The outer wall of the end cap 10 and the inner wall of the outer cylinder 20 are threaded together, and the inner wall of the end cap 10 is threaded together with the outer wall of the base 11. The lower end of the end cap 10 is also provided with a limiting protrusion ring 101, which is located between the inner cylinder 21 and the base 11. Therefore, an airflow channel 4 is formed between the inner wall of the inner cylinder 21 and the outer wall of the oil storage bottle 22 for airflow. The bottom of the inner cylinder 21 is also provided with... The air inlet pipe 231 is connected to the airflow channel 4. The outlet end of the air inlet pipe 231 is higher than the bottom surface of the inner cylinder 21, thus preventing some backflowing liquid from flowing into the air inlet pipe 231. The base 11 is provided with an air inlet hole 110, one end of which is connected to the airflow channel 4. The other end of the atomizing core 12 is connected to the other end of the air inlet hole 110. The air outlet 121 is connected to the air inlet hole 110. Since the limiting protrusion ring 101 extends into the airflow channel 4, in order to prevent the limiting protrusion ring 101 from blocking the air inlet hole 110, the lower end of the limiting protrusion ring 101 is horizontally higher than the upper end of the air inlet hole 110. An air pump 23 for providing airflow is also provided inside the outer cylinder 20. The air pump 23 is mainly used to pump high-speed airflow into the atomizing core 12. This high-speed airflow will flow from the atomizing core 12... The air outlet 121 sprays out to atomize the liquid essential oil flowing from the liquid outlet 122. The inner cylinder 21 is located above the air pump 23. The air pump 23 has an air supply pipe 230 connected to one end, and the other end of the air supply pipe 230 is connected to the air inlet pipe 231 on the inner cylinder 21. When it is necessary to atomize the liquid essential oil, the air pump 23 is activated to pump a high-speed airflow through the air supply pipe 230 and the air inlet pipe 231 into the airflow channel 4 of the inner cylinder 21. The high-speed airflow passes through the airflow channel 4, enters the atomizing core 12 through the air inlet 110, and is then sprayed out from the air outlet 121. A negative pressure is formed at the liquid outlet 122, which draws the liquid essential oil from the oil suction pipe 13 and makes it flow out from the liquid outlet 122 of the atomizing core 12. The liquid essential oil is accelerated and atomized into essential oil molecular particles due to the influence of the high-speed airflow.Simultaneously, due to the negative pressure effect, the liquid essential oil in the oil storage bottle 22 is continuously drawn to the outlet 122, thus continuously atomizing the liquid essential oil in the oil storage bottle 22.

[0030] A partition 112 is also provided inside the base 11. The partition 112 is integrally formed with the base 11. In order to allow the atomized essential oil molecules to diffuse from the bottle into the air, the partition 112 is provided with several diffusion holes 113 that communicate with the oil storage bottle 22. The atomized essential oil particles are pushed upward from the diffusion holes 113 by the airflow. The base 11 is also provided with a gasket 114 to ensure the sealing between the base 11 and the end cap 10. The gasket 114 is provided on the side wall of the base 11. Since the limiting protrusion 101 extends into the airflow channel 4, after the end cap 10 is connected to the base 11, the limiting protrusion 101 and the side wall of the base 11 fit together. To position the gasket 114 and prevent it from falling off, and to prevent incompletely atomized liquid essential oil particles from being blown out of the diffuser hole 113 and out of the end cap 10 due to airflow, a fog deflector 14 is provided on the partition 112. The fog deflector 14 includes a fog deflector plate 140 and several fog outlets 141. A limiting post 142 is provided at the bottom of the fog deflector plate 140, and a limiting hole 115 is provided on the partition 112 corresponding to the limiting post 142. The limiting post 142 and the limiting hole 115 are mutually limiting and engaged. The fog deflector plate 140 is umbrella-shaped and located above the diffuser hole 113. The fog outlets 141 are evenly distributed around the fog deflector plate 140. A fog deflector 140 is formed between the inside of the end cap 10 and the fog deflector 14. The end cap 10 has a mist outlet 16 and a mist outlet 17 at its upper end, which communicates with the mist outlet 16 to diffuse the atomized essential oil into the air. The entire fog deflector 14 is mounted on the partition 112 by limiting the engagement of the limiting post 142 with the limiting hole 115. This fog deflector 140 is umbrella-shaped and positioned directly above the diffuser hole 113. The mist outlets 141 are evenly distributed around the fog deflector 140. Therefore, when the atomizing core 12 blows out the atomized essential oil particles, even large, incompletely atomized liquid essential oil particles are also blown out through the diffuser hole 113. Because the diffuser hole 113 is located above the umbrella-shaped fog deflector 140... Large, un-atomized liquid essential oil molecules will be blocked by the deflector 140 and will continue to flow back into the oil reservoir 22 through the diffuser 113. Even if the atomized granular essential oil molecules are blocked by the deflector 140, they will continue to be blown out from the mist outlet 141 on the side of the deflector 140. A mist outlet channel 16 is formed between the inside of the end cap 10 and the deflector 14. The upper end of the end cap 10 is also provided with a mist outlet hole 17 that communicates with the mist outlet channel 16 to diffuse the atomized essential oil into the air. Therefore, the granular essential oil molecules blown out from the mist outlet 141 are diffused into the air through the mist outlet channel 16 and then through the mist outlet hole 17, thereby achieving the effect of aroma diffusion.

[0031] Since the inner wall of the inner cylinder 21 and the outer wall of the oil storage bottle 22 are connected by a high-speed airflow channel 4, and the air intake of the air inlet 110 comes from the high-speed airflow flowing through the airflow channel 4, in order to ensure the air intake efficiency of the air inlet 110, it is necessary to ensure the airtightness between the atomizing component 1 and the inner cylinder 21, thereby ensuring the airtightness of the airflow channel 4. Therefore, a limiting device is provided between the atomizing component 1 and the cylinder body 2, wherein the limiting device is provided with at least one sealing element 3 that cooperates with it, so that when the atomizing component 1 and the cylinder body 2 are connected, the sealing element 3 can be used to horizontally seal the gap between the cylinder body 2 and the atomizing component 1, thereby ensuring the airtightness between the atomizing component 1 and the cylinder body 2 and preventing the airflow in the airflow channel 4 from leaking out.

[0032] In this embodiment, the limiting device is located on the top surface of the inner cylinder 21. The limiting device is a limiting annular groove 210 located on the top surface of the inner cylinder 21. A sealing element 3 is provided inside the limiting annular groove 210 and is fitted with it for limiting. The sealing element 3 includes, but is not limited to, sealing rings, sealing devices, etc., and the cross-section of the sealing element 3 includes, but is not limited to, a circle, an ellipse, or a quadrilateral. The thickness of the sealing element 3 is greater than the depth of the limiting annular groove 210. When the atomizing component 1 is connected to the cylinder body 2, the atomizing component 1 and the sealing element 3 are fitted together vertically and horizontally, equivalent to the lower end face of the atomizing component 1 being horizontally fitted with the sealing element 3. Since the sealing element 3 is installed in the limiting annular groove 210 located at the top of the inner cylinder 21... The airtightness of the airflow channel 4 is ensured by the sealing element 3 between the atomizing component 1 and the inner cylinder 21, thus guaranteeing the airtightness of the airflow channel 4. This, in turn, ensures the atomization effect of the liquid essential oil in the atomizing core 12 by guaranteeing the air intake efficiency of the air inlet 110. When the atomizing component 1 and the sealing element 3 are in contact, it is equivalent to the lower end face of the end cap 10 in the atomizing component 1 being in contact with the sealing element 3. However, to further ensure the airtightness of the airflow channel 4, the end cap 10 can also achieve a limiting connection with the inner cylinder 21 by limiting the positioning protrusion 101 between the base 11 and the inner cylinder 21. This means that the positioning protrusion 101 can effectively seal the connection between the inner cylinder 21 and the airflow channel 4. The seal ensures that the airflow in the airflow channel 4 can directly enter through the air inlet 110 on the base 11. The sealing element 3 is horizontally set between the top of the inner cylinder 21 and the end cap 10. Therefore, in order to effectively ensure the sealing effect between the inner cylinder 21 and the atomizing component 1 after the sealing element 3 is installed, the end cap 10 in the atomizing component 1 is also provided with an annular platform 102 corresponding to the limiting annular groove 210. When the atomizing component 1 is connected to the inner cylinder 21, it is equivalent to the end face of the annular platform 102 in the end cap 10 being horizontally fitted with the sealing element 3. And when the end cap 10 is properly connected to the outer cylinder 20 and the inner cylinder 21, since the thickness of the sealing element 3 is greater than the depth of the limiting annular groove 210, At this time, the annular platform 102 on the end cap 10 will exert a certain degree of compression on the seal 3 from top to bottom, thereby fully ensuring the tightness between the seal 3 and the annular platform 102, and thus fully ensuring the connection and sealing between the inner cylinder 21 and the end cap 10. This allows the gap between the inner cylinder 21 and the atomizing component 1 to be horizontally sealed by the seal 3, thereby effectively preventing the airflow in the airflow channel 4 inside the inner cylinder 21 from leaking out. This allows all the high-speed airflow in the airflow channel 4 to enter the atomizing core 12 through the air inlet 110, thereby effectively improving the atomization efficiency of the liquid essential oil sucked up by the oil suction tube 13 by the atomizing core 12, and also greatly improving the diffusion effect of the entire diffuser.

[0033] Furthermore, since the limiting ring groove 210 is horizontally set at the top of the inner cylinder 21, and the sealing element 3 is also horizontally limited and installed in the limiting ring groove 210, and the surface of the annular platform 102 on the end cap 10 is also a flat surface, even when the annular platform 102 squeezes the sealing element 3 from top to bottom, even when the atomizing component 1 is installed or removed from the cylinder body 2 by rotation, the sealing element 3 will not be twisted and deformed, and it is even less likely that the sealing element 3 will fall out of the limiting ring groove 210. Thus, the sealing effect between the upper end face of the inner cylinder 21 and the lower end face of the end cap 10 can be ensured on both the horizontal and vertical planes, and the stability of the sealing element 3 in use can also be guaranteed, extending its service life.

[0034] To meet the power supply requirements of the air pump 23, a battery assembly 5 is provided between the inner cylinder 21 inside the outer cylinder 20 and the air pump 23. The battery assembly 5 is electrically connected to the air pump 23 to supply power to the air pump 23. Alternatively, the built-in battery assembly 5 can be omitted from the power supply according to actual needs, or an external power supply can be used to supply power to the air pump 23.

[0035] A base 6 is fixedly connected to the lower end of the cylinder 2, and a control module for controlling the diffuser is also provided inside the base 6.

[0036] The working principle or beneficial effects of this utility model are as follows: By providing a sealing element 3 at the end where the cylinder body 2 is connected to the atomizing component 1, and when the atomizing component 1 is connected to the cylinder body 2, the atomizing component 1 and the sealing element 3 are fitted together vertically and sealed, thereby effectively ensuring the sealing between the cylinder body 2 and the atomizing component 1, effectively preventing the airflow inside the cylinder body 2 from leaking out, and thus effectively improving the atomization efficiency of the atomizing core 12 for liquid essential oils, and also improving the diffusion effect of the entire diffuser.

[0037] Example 2: Please refer to Figure 10This utility model provides another technical solution: a diffuser, including an atomizing component 1 and a cylinder 2 connected to each other. The cylinder 2 includes an outer cylinder 20 and an inner cylinder 21 disposed inside the outer cylinder 20. A limiting device is provided between the atomizing component 1 and the cylinder 2. The limiting device is provided with at least one sealing element 3 that limits and cooperates with it. Unlike embodiment 1, the limiting device in this embodiment is located on the lower end face of the end cap 10 in the atomizing component 1. The limiting device is also a limiting ring groove 210, but the limiting ring groove 210 is located at the lower end of the end cap 10. The sealing element 3 is equivalent to being installed on the lower surface of the end cap 10 by limiting and installing with the limiting ring groove 210. When the end cap 10 in the atomizing assembly 1 is connected to the cylinder body 2, the sealing element 3 located at the lower end of the end cap 10 and the upper end face of the inner cylinder 21 are horizontally fitted together. This means that the sealing element 3 can be used to horizontally seal the gap between the cylinder body 2 and the end cap 10, thereby achieving a sealed connection between the atomizing assembly 1 and the inner cylinder 21, and thus ensuring the airtightness of the airflow channel 4. Since the sealing element 3 is installed at the lower end of the end cap 10, and in order to prevent the sealing element 3 from falling out of the limiting ring groove 210 located at the lower end of the end cap 10 due to gravity, the limiting ring groove 210 in this embodiment is set as a dovetail groove, which can effectively limit the sealing element 3.

[0038] Example 3: Please refer to Figure 11 This utility model provides another technical solution: a diffuser, including an atomizing component 1 and a cylinder body 2 connected to each other. The cylinder body 2 includes an outer cylinder 20 and an inner cylinder 21 disposed inside the outer cylinder 20. A limiting device is provided between the atomizing component 1 and the cylinder body 2. The limiting device is provided with at least one sealing element 3 that limits and cooperates with it. Unlike embodiment 1, the limiting device in this embodiment is an annular boss 8 located at the top of the inner cylinder 21, and the bottom of the sealing element 3 is provided with an annular groove 30. By limiting and cooperating between the annular groove 30 and the annular boss 8, the sealing element 3 can be limited and installed on the annular boss 8, which is equivalent to installing the sealing element 3 on the top surface of the inner cylinder 21. In this way, when the atomizing component 1 and the cylinder body 2 come into contact, the sealing element 3 can be used to horizontally seal the gap between the top surface of the inner cylinder 21 and the atomizing component 1, thereby achieving a sealed connection between the atomizing component 1 and the inner cylinder 21, and thus ensuring the airtightness of the airflow channel 4, and also ensuring the atomization effect of the liquid essential oil in the atomizing core 12.

[0039] Example 4: Please refer to Figure 12This utility model provides another technical solution: a diffuser, including an atomizing component 1 and a cylinder 2 connected to each other. The atomizing component 1 includes an end cap 10 and a base 11 connected to the end cap 10. The cylinder 2 includes an outer cylinder 20 and an inner cylinder 21 disposed within the outer cylinder 20. An oil storage bottle 22 connected to the base 11 is also disposed within the inner cylinder 21. The connection between the base 11 and the oil storage bottle 22 can be a connection method including but not limited to threaded connection. Unlike embodiment 1, in this embodiment, the base 11 is divided into an upper connecting part 116 and a lower connecting part 117. The diameter of the upper connecting part 116 is smaller than the diameter of the lower connecting part 117. The outer wall of the end cap 10 and the outer wall of the upper connecting part 116 of the base 11 are threadedly connected. The inner wall of the outer cylinder 20 is threadedly connected to the outer wall of the lower connecting part 117 of the base 11. The gasket 114 is provided on the upper end face of the lower connecting part 117 to fit against the lower end face of the end cap 10, thereby ensuring the sealing between the end cap 10 and the base 11. The sealing element 3 is also installed in the limiting ring groove 210 located at the top of the inner cylinder 21. Since the outer wall of the lower connecting part 117 of the base 11 is threadedly connected to the inner wall of the outer cylinder 20, the lower end face of the lower connecting part 116 of the base 11 fits against the upper surface of the sealing element 3, thereby ensuring the sealing between the top of the inner cylinder 21 and the base 11. In addition, the sealing element 3 can be used to horizontally seal the gap between the top surface of the inner cylinder 21 and the atomizing component 1.

[0040] Example 5: This utility model provides another technical solution: a diffuser, including an atomizing component 1 and a cylinder 2 connected to each other. The cylinder 2 includes an outer cylinder 20 and an inner cylinder 21 disposed inside the outer cylinder 20. A limiting device is provided between the atomizing component 1 and the cylinder 2. The limiting device is provided with at least one sealing element 3 that limits and cooperates with it. In this embodiment, the limiting device is disposed on the top surface of the outer cylinder 20. Thus, when the atomizing component 1 and the cylinder 2 are connected, the sealing element 3 is used to horizontally seal the gap between the top surface of the outer cylinder 20 and the atomizing component 1.

[0041] Example 6: This utility model provides another technical solution: a diffuser, including an atomizing component 1 and a cylinder 2 connected to each other. The cylinder 2 includes an outer cylinder 20 and an inner cylinder 21 disposed inside the outer cylinder 20. A limiting device is provided between the atomizing component 1 and the cylinder 2. The limiting device is provided with at least one sealing element 3 that limits and cooperates with it. The atomizing component 1 includes an end cap 10 and a base 11. In this embodiment, the limiting device is disposed on the base 11. Thus, when the atomizing component 1 and the cylinder 2 are connected, the sealing element 3 is used to horizontally seal the gap between the cylinder 2 and the base 11.

[0042] Example 7: This utility model provides another technical solution: a diffuser, including an atomizing component 1 and a cylinder body 2 connected to each other. The cylinder body 2 includes an outer cylinder 20 and an inner cylinder 21 disposed inside the outer cylinder 20. Unlike Example 1, in this example, the outer cylinder 20 and the inner cylinder 21 are integrally formed, which is suitable for production in which both 20 and the inner cylinder 21 are made of plastic material.

[0043] Finally, it should be noted that the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A diffuser, comprising an atomizing assembly and a cylinder body interconnected thereto, the cylinder body comprising an outer cylinder and an inner cylinder disposed within the outer cylinder, the inner cylinder having an airflow channel for airflow passage, characterized in that, A limiting device is provided between the atomizing component and the cylinder body. The limiting device is provided with at least one sealing element. When the atomizing component and the cylinder body are connected, the sealing element is used to horizontally seal the gap between the cylinder body and the atomizing component.

2. The diffuser according to claim 1, characterized in that, The limiting device is disposed on the top surface of the outer cylinder, and the sealing element is used to horizontally seal the gap between the top surface of the outer cylinder and the atomizing component.

3. The diffuser according to claim 1, characterized in that, The limiting device is disposed on the top surface of the inner cylinder, and the sealing element is used to horizontally seal the gap between the top surface of the inner cylinder and the atomizing component.

4. The diffuser according to claim 1, characterized in that, The atomizing assembly includes an end cap and a base. An atomizing core is provided inside the base, and an airflow channel communicates with the atomizing core. The limiting device is provided on the end cap, and the sealing element is used to horizontally seal the gap between the cylinder body and the end cap.

5. The diffuser according to claim 1, characterized in that, The atomizing assembly includes an end cap and a base. An atomizing core is provided inside the base, and an airflow channel communicates with the atomizing core. The limiting device is provided on the base, and the sealing element is used to horizontally seal the gap between the cylinder body and the base.

6. The diffuser according to any one of claims 1-5, characterized in that, The limiting device is a limiting ring groove, and the sealing element is disposed in the limiting ring groove, and its height is greater than the depth of the limiting ring groove.

7. The diffuser according to any one of claims 1-5, characterized in that, The limiting device is an annular boss, and the bottom of the sealing element is provided with an annular groove that mates with the annular boss.

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