Fragrance diffuser convenient for concentration adjustment

Abstract

The fragrance diffuser comprises a bottle body, a fragrance diffusion assembly and a fragrance diffusion cover, the fragrance diffusion cover is arranged on the bottle body in a covering mode, a cavity is formed between the fragrance diffusion cover and the bottle body, the fragrance diffusion assembly is located in the cavity, and at least part of the fragrance diffusion assembly can stretch into a bottle opening of the bottle body; the fragrance diffusion cover comprises an outer cover and an inner cover, the outer cover is arranged on the outer side of the inner cover in a sleeving mode, a first fragrance diffusion opening is formed in the outer cover, a second fragrance diffusion opening is formed in the inner cover, and the first fragrance diffusion opening, the second fragrance diffusion opening and the cavity can be sequentially communicated; the inner cover can rotate relative to the outer cover, and enables the first fragrance expanding opening and the second fragrance expanding opening to be communicated or closed. The fragrance diffuser provided by the utility model has the beneficial effects that the fragrance diffusion concentration is convenient to adjust, the fragrance diffusion effect is better, and the use experience of a user can be greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fragrance diffusion equipment, in particular to a fragrance diffuser which is convenient for adjusting concentration. Background Art

[0002] With the rise in people's consumption levels, the demand for air quality in their living environment has become increasingly high in recent years. Therefore, various types of aromatherapy devices on the market are becoming increasingly popular. Currently, there are two main ways to diffuse aromatherapy devices: one is to absorb essential oils through absorbent cotton to diffuse the aroma; the other is to further atomize the essential oils through atomizers to diffuse the aroma. Atomizers often require electrical plugging and are often subject to certain location restrictions. This means that the diffuser can only be placed where there is an electrical outlet. These diffusers are also more expensive than ordinary diffusers. Therefore, traditional diffusers that diffuse aromatherapy through absorbent cotton are more popular with consumers because they are not restricted in placement and are more affordable.

[0003] For example, a fragrance diffusion device disclosed in Chinese patent CN217772858U specifically discloses "comprising: a bottle body with a bottle mouth, an outer cover, an inner cover arranged in the outer cover, and a cotton core strip; the outer cover is provided with a plurality of fragrance diffusion grooves; the inner cover is detachably connected to the bottle mouth; the outer cover is detachably connected to the outside of the bottle; the cotton core strip passes through the bottle mouth and extends into the inner cover". When in use, the outer cover is detached from the bottle body, and then the inner cover is detached from the bottle mouth, and the outer cover is reconnected to the bottle body. At this time, the cotton core strip is located in the outer cover, and the cotton core strip absorbs the aromatherapy liquid in the bottle body from the bottom of the cotton core strip to the top of the cotton core strip, and then disperses it out of the bottle body through the fragrance diffusion groove of the outer cover. This method is the first fragrance diffusion method we mentioned above. It is easy to use and has low cost. However, there is still a certain problem, that is, the fragrance concentration of the fragrance diffuser cannot be adjusted, and only one concentration can be maintained during use. When the fragrance concentration in a certain space is too high, consumers can only temporarily move the fragrance diffuser to another space, or can only take out the cotton core strip, which is very inconvenient.

[0004] Therefore, it is necessary to improve the existing technology and provide a diffuser that is convenient for adjusting the concentration of the diffused fragrance. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a fragrance diffuser with a simple structure and convenient concentration adjustment.

[0006] In order to solve the above technical problems, the technical solution used in the present invention is: a fragrance diffuser that is easy to adjust the concentration, comprising a bottle body, a fragrance diffusion component, and a fragrance diffusion cover, the fragrance diffusion cover is arranged on the bottle body, and a cavity is formed between the fragrance diffusion cover and the bottle body, the fragrance diffusion component is located in the cavity, and at least a part of the fragrance diffusion component can extend into the bottle mouth of the bottle body; the fragrance diffusion cover comprises an outer cover and an inner cover, the outer cover is arranged on the outside of the inner cover, a first fragrance diffusion port is provided on the outer cover, and a second fragrance diffusion port is provided on the inner cover, and the first fragrance diffusion port, the second fragrance diffusion port and the cavity can be connected in sequence; the inner cover can rotate relative to the outer cover, and make the first fragrance diffusion port and the second fragrance diffusion port connected or closed.

[0007] Preferably, when the inner cover rotates relative to the outer cover, the area of ​​the communication between the first fragrance diffusion port and the second fragrance diffusion port can be adjusted.

[0008] Preferably, there are multiple first fragrance diffusion ports and multiple second fragrance diffusion ports, and the first fragrance diffusion ports are arranged corresponding to the two fragrance diffusion ports; the multiple first fragrance diffusion ports are arranged on the side wall of the outer cover at intervals along the circumferential direction of the outer cover, and are arranged through the thickness direction of the outer cover; the multiple second fragrance diffusion ports are arranged on the outer wall of the inner cover at intervals along the circumferential direction of the inner cover, and are arranged through the thickness direction of the inner cover. When the inner cover rotates relative to the axis of the outer cover, the area of ​​the communication between the first fragrance diffusion port and the second fragrance diffusion port can be adjusted.

[0009] Preferably, the shapes of the first fragrance diffusion opening and the second fragrance diffusion opening are adapted to each other.

[0010] Preferably, one of the inner cover or the outer cover is provided with a slide groove, and the other is provided with a hook, and the hook is matched with the slide groove; when the inner cover rotates, the hook can move along the track of the slide groove.

[0011] Preferably, a positioning block is provided on the inner cover, and a positioning groove which can cooperate with the positioning block is provided in the outer cover; the positioning grooves are extended and arranged at intervals along the rotation direction of the inner cover.

[0012] Preferably, there are at least three positioning slots. When the positioning block is connected to one of the positioning slots, the first fragrance diffusion port can completely overlap with the second fragrance diffusion port; when the positioning block is connected to another positioning slot, the first fragrance diffusion port can be completely misaligned with the second fragrance diffusion port; when the positioning block is connected to the positioning slot between the above two positioning slots, the first fragrance diffusion port can partially overlap with the second fragrance diffusion port.

[0013] Preferably, the fragrance diffusion component includes absorbent cotton, a first support frame and a second support frame, at least a portion of the absorbent cotton can be extended into the bottle mouth of the bottle body, and the first support frame and the second support frame are hinged; the first support frame can rotate around the hinge and expand or close with the second support frame; when closed, the first support frame and the second support frame clamp the absorbent cotton; when expanded, the absorbent cotton can be separated from the first support frame and the second support frame.

[0014] Preferably, one of the first support frame and the second support frame is provided with a card block, and the other is provided with a card slot; when the first support frame and the second support frame are closed, the card block can be inserted into the card slot; when the first support frame and the second support frame are unfolded, the card block can be disengaged from the card slot.

[0015] Preferably, the first support frame and the second support frame both include a support rod and a base, one end of the support rod is connected to the base, and the other end is extended upward relative to the base; the top end of the base is formed with an outwardly extending flange, the flange extends out of the bottle mouth of the bottle body, and the bottle mouth of the bottle body abuts against the lower surface of the flange.

[0016] The beneficial effects of the present invention are mainly reflected in: the aroma diffuser provided by the present invention, by arranging the inner cover to rotate relative to the outer cover, is convenient for consumers to make flexible adjustments according to their own needs, and can freely adjust the required fragrance concentration, further improving the user experience, and at the same time the cost is relatively low. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and other purposes, features and advantages of the present invention will become more apparent through a more detailed description of the preferred embodiments of the present invention shown in the accompanying drawings. The same reference numerals indicate the same parts throughout the drawings, and the drawings are not intentionally scaled to actual size. The emphasis is on illustrating the subject matter of the present invention.

[0018] Figure 1 This is a schematic diagram of the overall structure of the aroma diffuser in the present utility model;

[0019] Figure 2 This is a schematic diagram of the explosion structure of the aroma diffuser in the present utility model;

[0020] Figure 3 This is a schematic diagram of the first perspective structure of the fragrance diffuser in the present invention;

[0021] Figure 4 This is a schematic diagram of the structure of the fragrance diffuser in the present invention from a second perspective;

[0022] Figure 5 This is a schematic diagram of the cross-sectional structure of the fragrance diffusion cover in the present invention;

[0023] Figure 6 for Figure 5 A schematic diagram of the partially enlarged structure of part A;

[0024] Figure 7 This is a schematic diagram of the structure in which the first supporting frame and the second supporting frame are unfolded in the present invention;

[0025] In the figure: 1-bottle body, 10-bottle mouth, 11-bottle cap;

[0026] 2-aroma diffusion component, 20-liquid absorbent cotton, 21-first support frame, 210-block, 22-second support frame, 220-slot, 23-support rod, 24-base, 240-flange;

[0027] 3- fragrance diffusion cover, 30- outer cover, 301- first fragrance diffusion port, 302- hook, 3020- clamping part, 303- positioning groove, 31- inner cover, 310- second fragrance diffusion port, 311- slide groove, 312- positioning block. DETAILED DESCRIPTION

[0028] In order to facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings.

[0029] It should be noted that when an element is considered to be "connected" to another element, it may be directly connected to the other element and integrated therewith, or there may be an intermediate element. The terms "mounted", "one end", "the other end" and similar expressions used herein are for illustrative purposes only.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art. The terms used in this specification are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the relevant listed items.

[0031] refer to Figure 1-7The present invention provides an aroma diffuser which is convenient for adjusting the concentration, comprising a bottle body 1, an aroma diffuser assembly 2, and an aroma diffuser cover 3. The aroma diffuser cover 3 is arranged on the bottle body 1 and forms a cavity with the bottle body 1. The aroma diffuser assembly 2 is located in the cavity, and at least a portion of the aroma diffuser assembly 2 can be extended into the bottle mouth 10 of the bottle body 1. At the same time, essential oil is also stored in the bottle body 1. When the aroma diffuser assembly 2 is extended into the bottle mouth 10, it can contact the essential oil in the bottle body 1, thereby sucking the essential oil out of the bottle body 1, thereby performing aroma diffusion. The fragrance cover 3 includes an outer cover 30 and an inner cover 31. The outer cover 30 is sleeved on the outside of the inner cover 31. The outer cover 30 is provided with a first fragrance diffusion port 301, and the inner cover 31 is provided with a second fragrance diffusion port 310. The first fragrance diffusion port 301, the second fragrance diffusion port 310 and the cavity can be connected in sequence; the inner cover 31 can rotate relative to the outer cover 30 (of course, the outer cover 30 can also be arranged to rotate relative to the inner cover 31 as needed), and the first fragrance diffusion port 301 and the second fragrance diffusion port 310 can be connected or closed.

[0032] In this embodiment, the specific working principle of the aroma diffuser is:

[0033] During use, the user can rotate the inner cover 31, and during the rotation, the first fragrance diffusion port 301 is connected with the second fragrance diffusion port 310. At this time, the fragrance can be emitted into the air through the cavity, the first fragrance diffusion port 301 and the second fragrance diffusion port 310. When the concentration of the fragrance needs to be adjusted, it is only necessary to control the size of the area of ​​communication between the first fragrance diffusion port 301 and the second fragrance diffusion port 310 by rotating the inner cover 31. Specifically, in the initial state, the fragrance diffuser can be in a closed state. When the inner cover 31 is rotated, the first fragrance diffusion port 301 will overlap with the second fragrance diffusion port 310. At this time, the two fragrance diffusion ports are connected, and the fragrance can be emitted from the cavity to the outside and contact with the air; and as the rotation angle changes, the area of ​​communication between the first fragrance diffusion port 301 and the second fragrance diffusion port 310 can be controlled to gradually increase (that is, the overlapping area gradually increases). When the communication area between the two reaches the maximum, the fragrance is concentrated. When the inner cover 31 is rotated in the opposite direction (assuming that the inner cover 31 is rotated clockwise to connect the first fragrance diffusion port 301 with the second fragrance diffusion port 310, then the inner cover 31 is rotated counterclockwise to close the first and second fragrance diffusion ports 301, 310), the connection area between the first and second fragrance diffusion ports 301, 310 can be controlled to gradually decrease, and the fragrance concentration will gradually decrease. When the connection area between the first and second fragrance diffusion ports 301, 310 is 0, the outer wall of the inner cover 31 can close the first fragrance diffusion port 301, and the inner wall of the outer cover 30 also closes the second fragrance diffusion port 310, thereby preventing the fragrance from diffusing into the air. This design can meet the different needs of consumers and more conveniently adjust the fragrance concentration.

[0034] Compared with traditional fragrance diffusers, the aroma diffuser provided by this utility model has the following beneficial effects:

[0035] By setting the inner cover 31 to be rotatable relative to the outer cover 30, consumers can make flexible adjustments according to their own needs and freely adjust the required fragrance concentration, further improving the user experience while also keeping the cost relatively low.

[0036] refer to Figure 1 、 3 4. In a preferred embodiment, the inner cover 31 rotates relative to the outer cover 30 to adjust the area of ​​communication between the first and second fragrance diffusion ports 301, 310. As described above, the fragrance concentration of the diffuser can be adjusted by controlling the communication area between the first and second fragrance diffusion ports 301, 310. A larger communication area between the first and second fragrance diffusion ports 301, 310 increases the fragrance concentration, while a smaller communication area decreases the fragrance concentration.

[0037] refer to Figure 2-4 In a preferred embodiment, there are multiple first fragrance diffusion ports 301 and second fragrance diffusion ports 310, and the first fragrance diffusion ports 301 are correspondingly arranged with the second fragrance diffusion ports; the corresponding arrangement here means that the positional relationship between the first fragrance diffusion ports 301 and the second fragrance diffusion ports 310 is basically corresponding, so that when the inner cover 31 rotates, the first fragrance diffusion ports 301 can overlap (or be connected with) the second fragrance diffusion ports 310; the multiple first fragrance diffusion ports 301 are arranged on the side wall of the outer cover 30 at intervals along the circumferential direction of the outer cover 30, and are arranged through the thickness direction of the outer cover 30; the multiple second fragrance diffusion ports 310 are arranged on the outer wall of the inner cover 31 at intervals along the circumferential direction of the inner cover 31, and are arranged through the thickness direction of the inner cover 31. When the inner cover 31 rotates relative to the axis of the outer cover 30, the area of ​​communication between the first fragrance diffusion ports 301 and the second fragrance diffusion ports 310 can be adjusted. At the same time, in this embodiment, the provision of multiple first fragrance diffusion ports 301 and multiple second fragrance diffusion ports 310 can speed up the fragrance diffusion speed of the diffuser, while also further increasing the contact area between the fragrance essential oil and the air, resulting in a better fragrance diffusion effect.

[0038] refer to Figure 2 and 3 In a further preferred embodiment, the shapes of the first fragrance diffusion opening 301 and the second fragrance diffusion opening 310 are adapted to each other. That is, the shape and size of the first fragrance diffusion opening 301 and the second fragrance diffusion opening 310 are substantially the same, and the positions of the two are also correspondingly arranged. Therefore, when the inner cover 31 is rotated, the second fragrance diffusion opening 310 can be well aligned or misaligned with the first fragrance diffusion opening 301 (that is, connected or closed).

[0039] refer to Figure 3 and4 In a preferred embodiment, one of the inner or outer cover 30 is provided with a slide groove 311, and the other is provided with a hook 302. The hook 302 is matingly connected to the slide groove 311; when the inner cover rotates, the hook 302 can move along the path of the slide groove 311. In this embodiment, the inner and outer covers 31 and 30 are relatively fixed by snapping the hook 302 into the slide groove 311. The movement of the hook 302 along the path of the slide groove 311 here refers to relative movement. Specifically, when the inner cover 31 rotates, the slide groove 311 also rotates. Although the hook 302 does not move at all, the movement of the slide groove 311 causes the hook 302 to move relative to the slide groove 311. (This principle can also be viewed as similar to the situation where a tree outside a vehicle is stationary during driving, but due to the vehicle's movement, the tree also moves relative to the vehicle.) The number of the sliding grooves 311 and the hooks 302 can correspond one to one, that is, one hook 302 is locked in each sliding groove 311; or the number of the hooks 302 can be greater than the number of the sliding grooves 311, that is, multiple hooks 302 are locked in each sliding groove 311.

[0040] refer to Figure 5 and 6 In a further preferred embodiment, the hook 302 is provided with a snap-fitting portion 3020. The thickness of the snap-fitting portion 3020 is greater than the width of the slot 311. When the hook 302 is inserted into the slot 311, the snap-fitting portion 3020 of the hook 302 precisely abuts against the inner cover 31, thereby preventing the hook 302 from being dislodged from the slot 311. During rotation of the inner cover 31, the slot 311 also rubs against the upper surface of the snap-fitting portion 3020. In this embodiment, the outer cover 30, the inner cover 31, and the hook 302 can all be made of plastic, which has good ductility and flexibility. This facilitates installation. When the hook 302 is inserted into the slot 311, the slot 311 is relatively expanded to facilitate the insertion of the hook 302. Furthermore, during rotation, the friction between the inner cover 31 and the hook 302 produces relatively little noise.

[0041] refer to Figure 3 and 4 In a preferred embodiment, the inner cover is equipped with a positioning block 312, and the outer cover 30 is provided with positioning slots 303 that mate with the positioning block 312. The positioning slots 303 are spaced apart along the rotational direction of the inner cover 31. When the inner cover 31 is rotated, the positioning blocks 312 fit into the positioning slots 303, maintaining a relatively fixed position for the inner cover 31. This also ensures that the connection area between the first and second fragrance diffusion ports 301, 310, remains relatively fixed. The interaction between the positioning blocks 312 and the positioning slots 303 allows the user to quickly adjust the desired fragrance diffusion concentration while rotating the inner cover 31.

[0042] refer to Figure 3 and 4 In a preferred embodiment, there are at least three positioning grooves 303. When the positioning block 312 is connected to one of the positioning grooves 303, the first fragrance diffusion port 301 can completely overlap with the second fragrance diffusion port 310 (at this time, the communication area between the first fragrance diffusion port 301 and the second fragrance diffusion port 310 is the largest, which is equivalent to the diffuser being in a fully open state); when the positioning block 312 is connected to another positioning groove 303, the first fragrance diffusion port 301 can be completely misaligned with the second fragrance diffusion port 310 (at this time, the communication area between the first fragrance diffusion port 301 and the second fragrance diffusion port 310 is the largest, which is equivalent to the diffuser being in a fully open state). The communication area is 0, which is equivalent to the aroma diffuser being in a closed state); when the positioning block 312 is connected to the positioning slot 303 between the two positioning slots 303, the first aroma diffusion port 301 can partially overlap with the second aroma diffusion port 310 (assuming that they completely overlap, the communication area between the first aroma diffusion port 301 and the second aroma diffusion port 310 is S1, and if they partially overlap, the communication area between the first aroma diffusion port 301 and the second aroma diffusion port 310 is S2, then S2 = S1 ÷ 2, and the aroma diffuser is in a half-open state).

[0043] In this embodiment, the positioning block 312 cooperates with the positioning slot 303 to achieve the effect of quickly adjusting to the three aforementioned states, thereby meeting the user's usage needs. Of course, the user can also further rotate the inner cover 31 back and forth between the three positioning slots 303 according to actual needs to adjust the overlapping state of the first fragrance diffusion port 301 and the second fragrance diffusion port 310, and is not limited to the three aforementioned states. At the same time, the three positioning slots 303 are arranged in sequence along the rotation direction of the inner cover 31. Specifically, in the initial state, assuming that the first fragrance diffusion port 301 and the second fragrance diffusion port 310 are in a closed state, the positioning block 312 is connected to the first positioning slot 303; when the inner cover 31 is rotated clockwise (positive direction), the positioning block 312 disengages from the first positioning slot 303 and connects to the second positioning slot 303. At this time, the fragrance diffuser is in a half-open state (i.e., the first fragrance diffusion port 301 and the second fragrance diffusion port 310 partially overlap). When the inner cover 31 continues to rotate, the positioning block 312 disengages from the second positioning slot 303 and connects to the third positioning slot 303. At this time, the fragrance diffuser is in a fully open state (i.e., the first fragrance diffusion port 301 and the second fragrance diffusion port 310 completely overlap). Then, when the inner cover 31 is rotated counterclockwise (reverse direction), the fragrance diffuser changes from a fully open state to a half-open state and finally to a closed state. There is not only one half-open state between the closed and fully open states. Consumers can stop rotating at any position between the positioning slots 303 corresponding to the two states (such as between the first positioning slot 303 and the third positioning slot 303), so that the open state of the diffuser is relatively fixed.

[0044] refer to Figure 2 and7 In a preferred embodiment, the aroma diffuser assembly 2 includes an absorbent cotton 20, a first support frame 21, and a second support frame 22. At least a portion of the absorbent cotton 20 can extend into the bottle mouth 10 of the bottle body 1 and absorb the essential oil in the bottle body 1 to the top of the absorbent cotton 20. The first support frame 21 and the second support frame 22 are hingedly connected; the first support frame 21 can rotate about the hinge and expand or close with the second support frame 22. When closed, the first and second support frames 21, 22 clamp the absorbent cotton 20; when expanded, the absorbent cotton 20 can be separated from the first and second support frames 21, 22. This facilitates user removal and installation of the absorbent cotton 20.

[0045] refer to Figure 7 In a preferred embodiment, one of the first support frame 21 and the second support frame 22 is provided with a card block 210, and the other is provided with a card slot 220; when the first support frame 21 and the second support frame 22 are closed, the card block 210 can be inserted into the card slot 220, thereby achieving fixation between the two support frames and clamping the absorbent cotton 20; when the first support frame 21 and the second support frame 22 are unfolded, the card block 210 can be disengaged from the card slot 220.

[0046] refer to Figure 7 In a preferred embodiment, the first support frame 21 and the second support frame 22 each include a support rod 23 and a base 24. One end of the support rod 23 is connected to the base 24, and the other end extends upward relative to the base 24. The top of the base 24 is formed with an outwardly extending flange 240. The flange 240 extends outward from the bottle mouth 10 of the bottle body 1, and the bottle mouth 10 of the bottle body 1 abuts against the lower surface of the flange 240. This ensures that the support frame can be well fixed to the bottle body 1, and has higher stability.

[0047] In a further preferred embodiment, the inner cover 31 and the outer cover 30 are both detachably connected to the bottle body 1, thereby making it convenient for the user to install the absorbent cotton 20 or replace the essential oil.

[0048] refer to Figure 2 In a further preferred embodiment, the aroma diffuser further comprises a bottle cap 11. The outer side of the bottle mouth 10 of the bottle body 1 is provided with an external thread, and the inner wall of the bottle cap 11 is provided with an internal thread. The bottle cap 11 is threadedly connected to the bottle body 1. During transportation, the bottle cap 11 can be used to seal the interior of the bottle body 1 to prevent leakage of the essential oil. When in use, the bottle cap 11 can be unscrewed from the bottle body 1, and then the first support frame 21 and the second support frame 22 can be placed on the bottle body 1. The absorbent cotton 20 is partially placed inside the bottle body 1, and finally the aroma diffuser cover 3 is covered and the inner cover 31 is rotated to the appropriate position to start the aroma diffuser.

[0049] The aroma diffuser provided by the utility model has the beneficial effects of conveniently adjusting the aroma diffusion concentration and better aroma diffusion effect, which can greatly enhance the user experience.

[0050] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A fragrance diffuser that is easy to adjust the concentration, characterized by: The invention comprises a bottle body, a fragrance diffusion component and a fragrance diffusion cover, wherein the fragrance diffusion cover is arranged on the bottle body and a cavity is formed between the fragrance diffusion cover and the bottle body, the fragrance diffusion component is located in the cavity, and at least a part of the fragrance diffusion component can extend into the bottle mouth of the bottle body; the fragrance diffusion cover comprises an outer cover and an inner cover, the outer cover is sleeved on the outer side of the inner cover, a first fragrance diffusion port is provided on the outer cover, and a second fragrance diffusion port is provided on the inner cover, and the first fragrance diffusion port, the second fragrance diffusion port and the cavity can be connected in sequence; the inner cover can rotate relative to the outer cover and make the first fragrance diffusion port and the second fragrance diffusion port connected or closed.

2. The aroma diffuser with easy concentration adjustment according to claim 1, characterized in that: When the inner cover rotates relative to the outer cover, the area of ​​the first fragrance diffusion opening communicating with the second fragrance diffusion opening can be adjusted.

3. The aroma diffuser with easy concentration adjustment according to claim 1, characterized in that: There are multiple first fragrance diffusion ports and multiple second fragrance diffusion ports, and the first fragrance diffusion ports are arranged corresponding to the second fragrance diffusion ports; the multiple first fragrance diffusion ports are arranged on the side wall of the outer cover at intervals along the circumferential direction of the outer cover, and are arranged through the thickness direction of the outer cover; the multiple second fragrance diffusion ports are arranged on the outer wall of the inner cover at intervals along the circumferential direction of the inner cover, and are arranged through the thickness direction of the inner cover. When the inner cover rotates relative to the axis of the outer cover, the area of ​​the communication between the first fragrance diffusion ports and the second fragrance diffusion ports can be adjusted.

4. The aroma diffuser with easy concentration adjustment according to claim 3, characterized in that: The shapes of the first fragrance diffusion opening and the second fragrance diffusion opening are adapted to each other.

5. The aroma diffuser with easy concentration adjustment according to claim 1, characterized in that: One of the inner cover or the outer cover is provided with a slide groove, and the other is provided with a hook, and the hook is matched with the slide groove; when the inner cover rotates, the hook can move along the track of the slide groove.

6. The aroma diffuser with easy concentration adjustment according to claim 1, characterized in that: The inner cover is provided with a positioning block, and the outer cover is provided with a positioning groove that can cooperate with the positioning block; the positioning grooves extend along the rotation direction of the inner cover and are arranged at intervals.

7. The aroma diffuser with easy concentration adjustment according to claim 6, characterized in that: There are at least three positioning grooves. When the positioning block is connected to one of the positioning grooves, the first fragrance diffusion port can completely overlap with the second fragrance diffusion port; when the positioning block is connected to another positioning groove, the first fragrance diffusion port can be completely misaligned with the second fragrance diffusion port; when the positioning block is connected to the positioning groove between the above two positioning grooves, the first fragrance diffusion port can partially overlap with the second fragrance diffusion port.

8. The aroma diffuser with easy concentration adjustment according to claim 1, characterized in that: The fragrance diffusion component includes absorbent cotton, a first support frame and a second support frame. At least a portion of the absorbent cotton can be extended into the bottle mouth of the bottle body. The first support frame and the second support frame are hinged. The first support frame can rotate around the hinge and expand or close with the second support frame. When closed, the first support frame and the second support frame clamp the absorbent cotton; when expanded, the absorbent cotton can be separated from the first support frame and the second support frame.

9. The aroma diffuser for easy concentration adjustment according to claim 8, characterized in that: One of the first support frame and the second support frame is provided with a card block, and the other is provided with a card slot; when the first support frame and the second support frame are closed, the card block can be inserted into the card slot; when the first support frame and the second support frame are unfolded, the card block can be disengaged from the card slot.

10. The aroma diffuser with easy concentration adjustment according to claim 8, characterized in that: The first support frame and the second support frame both include a support rod and a base, one end of the support rod is connected to the base, and the other end is extended upward relative to the base; the top end of the base is formed with an outwardly extending flange, the flange extends out of the bottle mouth of the bottle body, and the bottle mouth of the bottle body abuts against the lower surface of the flange.

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