A novel fragrance bottle cap and fragrance generator

Abstract

This invention proposes a novel fragrance bottle cap and fragrance generator. The fragrance bottle cap includes an outer cap, an inner pressure cap, an inner pressure cap spring, an inner support, and a fragrance bottle separator. The fragrance bottle cap can be rotated and installed onto the fragrance generator. When the fragrance bottle cap is not installed on the fragrance generator, it is automatically closed under the elastic force of the inner pressure cap spring. After the fragrance bottle cap is screwed tightly onto the fragrance generator, the mechanical pressing of the fragrance generator overcomes the elastic force of the inner pressure cap spring, causing the fragrance bottle cap to open and forming a channel for fragrance gas to flow out. This allows for convenient and quick opening and closing of the gas channel and solves the problem of liquid fragrance spillage.

Description

Technical Field

[0001] This invention relates to the field of air conditioning technology, specifically to a novel fragrance bottle cap and fragrance generator. Background Technology

[0002] Fragrance diffusers improve the spatial environment by releasing fragrances into the air, thereby creating a comfortable atmosphere for users. Currently, the fragrance products in fragrance diffusers are solid, so the solid fragrance sticks are typically attached to the diffuser using clips or magnets.

[0003] With technological advancements, fragrance products using liquid bottles have emerged on the market. Since clips and magnetic fastening methods are unreliable, a rotating fastening system has been adopted. However, rotating fasteners for liquid bottles require addressing the issue of opening and closing the gas passage between the fragrance bottle and the rotating sleeve. Furthermore, since the fragrance bottle is placed inside a car, the problem of liquid fragrance spillage must be resolved. Summary of the Invention

[0004] To overcome the shortcomings of existing technologies, this invention proposes a novel fragrance bottle cap and fragrance generator that can conveniently and quickly open and close the gas channel and solve the problem of liquid fragrance spillage.

[0005] To achieve the above objectives, the present invention provides a novel fragrance bottle cap and fragrance generator. The fragrance bottle cap includes an outer cap, an inner pressure cap, an inner pressure cap spring, an inner support for the fragrance bottle, and a fragrance bottle separator. The fragrance bottle cap can be rotated and installed on the fragrance generator as a whole. When the fragrance bottle cap is not installed on the fragrance generator, the fragrance bottle cap is in an automatically closed state under the elastic force of the inner pressure cap spring; After the fragrance bottle cap is screwed tightly onto the fragrance generator, the mechanical pressing of the fragrance generator overcomes the elasticity of the inner cap spring, causing the fragrance bottle cap to open and forming a channel for the fragrance gas to flow out.

[0006] Furthermore, the fragrance bottle inner support is located inside the fragrance bottle outer cap, the fragrance bottle inner pressure cap is located between the fragrance bottle outer cap and the fragrance bottle inner support and can move up and down, the fragrance bottle inner pressure cap has an inner pressure cap bracket at the bottom, the inner pressure cap bracket passes through the bottom of the fragrance bottle inner support, the fragrance bottle separator is connected to the bottom of the inner pressure cap bracket and located below the fragrance bottle inner support, the inner pressure cap spring is sleeved on the inner pressure cap bracket, and the two ends of the inner pressure cap spring are respectively connected to the fragrance bottle inner pressure cap and the fragrance bottle inner support.

[0007] Furthermore, the fragrance bottle's inner support is a hollow structure, with an inner support air inlet and outlet at the bottom. The fragrance bottle's outer cap has an outer cap opening at the top, and the fragrance bottle's inner pressure cap has a top protruding ring that can be inserted into the outer cap opening. The fragrance bottle's inner pressure cap is a hollow structure, with an inner pressure cap opening at the bottom. When the fragrance bottle cap is open, the outer cap opening and the internal cavity of the fragrance bottle's inner support are connected to the space inside the fragrance bottle through the inner support air inlet, forming an air inlet channel for external air to flow into the fragrance bottle. The internal cavity of the fragrance bottle's inner pressure cap and the inner pressure cap opening are connected to the space inside the fragrance bottle through the inner support air outlet, forming an air outlet channel for fragrance gas to flow out of the fragrance bottle.

[0008] Furthermore, a first internal sealing ring is provided on the top of the inner side of the fragrance bottle cap, which forms a seal between the fragrance bottle cap, the fragrance bottle inner support, and the fragrance bottle body.

[0009] Furthermore, a second inner sealing ring is fitted on the top protruding ring. When the fragrance bottle cap is not installed, the second inner sealing ring fits against the inside of the outer cap opening, and the second inner sealing ring forms a seal between the top protruding ring and the outer cap opening.

[0010] Furthermore, the fragrance generator includes an air duct assembly and a mounting bracket. The air duct assembly includes an inlet pipe and an outlet pipe, which are parallel. The fragrance generator has a fragrance bottle placement slot with a bottom opening, located below the mounting bracket. The fragrance bottle is placed in the slot through the bottom opening, and the bottle cap is rotated and installed at the bottom of the mounting bracket. One side of the inlet pipe is connected to the top of the mounting bracket and communicates with the fragrance bottle's air inlet channel. The end of one side of the outlet pipe is bent downwards and extends to press down on the top protruding ring, communicating with the fragrance bottle's air outlet channel. The air duct assembly has a rotating sleeve on the side away from the mounting bracket. The top of the rotating sleeve has an inlet valve port located in the inlet pipe and an outlet valve port located in the outlet pipe. The rotating sleeve contains a rotor, which is a thin-walled cylindrical structure with notches on its side walls. The fragrance generator contains a motor that drives the rotor to rotate. The rotor rotation synchronously opens or closes the inlet and outlet valve ports.

[0011] Furthermore, the fragrance generator is equipped with a fan cover, a fan outlet on the fan cover, a vortex fan inside the fan cover, a fan air inlet on the side of the fan cover, a fan air inlet connected to the fan air inlet, a fan air inlet connected to a rotating sleeve at the bottom of the air outlet pipe, a main air inlet on the side of the air inlet pipe, a main air inlet on the outer shell of the fragrance generator, the inlet of the main air inlet connected to the main air inlet, and the outlet of the main air inlet connected to the rotating sleeve at the bottom of the air inlet pipe.

[0012] Furthermore, a third sealing ring is provided on the top inner side of the mounting bracket, which forms a seal between the mounting bracket and the fragrance bottle cap.

[0013] Furthermore, the outer side of the fragrance bottle cap is provided with a recessed slot, and a protruding limiting block is provided on one side of the slot. The fragrance generator is provided with an anti-backward device, which includes a ball cap, a ball, and a locking spring. After the fragrance bottle cap is screwed tightly onto the fragrance generator, the ball is locked into the slot under the elastic force of the locking spring and makes an audible prompt.

[0014] Furthermore, the fragrance generator contains a main PCB board A, on which LED beads are mounted. The light emitted by the LED beads directly illuminates the glass fragrance bottle and is refracted.

[0015] The present invention provides a novel fragrance bottle cap and fragrance generator that can conveniently and quickly open and close the gas channel and solve the problem of liquid fragrance spillage. Attached Figure Description

[0016] The invention will now be further described and explained with reference to the accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the structure of a novel fragrance bottle cap and fragrance generator according to the preferred embodiment of the present invention.

[0018] Figure 2 This is an exploded view of a new type of fragrance bottle cap and fragrance generator.

[0019] Figure 3 It's an exploded view of the fragrance bottle cap.

[0020] Figure 4 This is a schematic diagram illustrating the opening at the bottom of the holder inside the fragrance bottle.

[0021] Figure 5 This is a cross-sectional view of the fragrance bottle cap in its automatically closing state.

[0022] Figure 6 This is a cross-sectional view of a fragrance bottle with its cap in a passively opened position.

[0023] Figure 7 It is a schematic diagram used to illustrate the direction of airflow.

[0024] Figure 8 It is a schematic diagram used to illustrate the structure of the gas pipeline.

[0025] Figure 9 This is a schematic diagram used to illustrate the anti-retrograde structure.

[0026] Reference numerals: 1. Fragrance bottle cap; 11. Fragrance bottle outer cap; 111. Outer cap opening; 112. Slot; 113. Limiting block; 114. NFC chip; 115. NFC protective cap; 12. Fragrance bottle inner pressure cap; 121. Inner pressure cap bracket; 122. Top protruding ring; 123. Inner pressure cap opening; 13. Inner pressure cap spring; 14. Fragrance bottle inner bracket; 141. Inner bracket air inlet; 142. Inner bracket air outlet; 143. Edge; 144. Extension; 15. Fragrance bottle isolator; 16. First internal sealing ring; 17. Second internal sealing ring; 2. Fragrance diffuser Generator; 21. Top cover; 211. Main air inlet; 22. Bottom cover; 221. Fragrance bottle placement slot; 231. Air inlet pipe; 232. Air outlet pipe; 24. Rotating sleeve; 241. Rotor; 242. Motor; 25. Fan cover; 251. Vortex fan; 252. Fan fragrance outlet; 253. Fan air inlet; 254. Fan air inlet duct; 26. Main air inlet duct; 27. Mounting bracket; 271. Third sealing ring; 272. Ball bearing cover; 273. Ball bearing; 274. Locking spring; 28. Main PCB board; 29. ​​NFC reading PCB board; 3. Fragrance bottle body. Detailed Implementation

[0027] The technical solution of the present invention will be more clearly and completely explained below with reference to the accompanying drawings and through the description of preferred embodiments of the present invention.

[0028] The preferred embodiment of this invention provides a novel fragrance bottle cap and fragrance generator, comprising a fragrance bottle cap 1, a fragrance bottle body 3, and a fragrance generator 2. For example... Figure 2 As shown, the fragrance bottle cap 1 includes an outer cap 11, an inner pressure cap 12, an inner pressure cap spring 13, an inner support 14, and a fragrance bottle separator 15.

[0029] like Figure 2 As shown, the outer cap 11 of the fragrance bottle has external threads on its outer side, allowing the fragrance bottle cap 11 to be rotated and installed onto the fragrance generator 2 via these threads. Figure 3 As shown, the inner side of the fragrance bottle cap 11 has internal threads, and the fragrance bottle cap 11 is rotated and installed on the bottle mouth of the fragrance bottle body 3 through the internal threads. The bottom of the fragrance bottle has a groove and a key-like structure to assist in installation onto the fragrance generator 2.

[0030] like Figure 3As shown, the fragrance bottle inner support 14 is disposed inside the fragrance bottle outer cap 11, and the fragrance bottle inner pressure cap 12 is disposed between the fragrance bottle outer cap 11 and the fragrance bottle inner support 14 and can move up and down. The fragrance bottle inner support 14 has a side 143 and an extension 144. The side 143 of the fragrance bottle inner support 14 is placed at the mouth of the fragrance bottle body 3 and seals against the mouth of the fragrance bottle body 3. The extension 144 of the fragrance bottle inner support 14 extends into the fragrance bottle body 3. The lower part of the fragrance bottle inner pressure cap 12 has an inner pressure cap bracket 121, which passes through the bottom of the fragrance bottle inner support 14. The fragrance bottle separator 15 is locked to the bottom of the inner pressure cap bracket 121 and is located below the fragrance bottle inner support 14. The fragrance bottle separator 15 and the inner pressure cap bracket 121 can be fixed by a snap fastener or by a bolt assembly. The inner pressure cap spring 13 is sleeved on the inner pressure cap bracket 121, and the two ends of the inner pressure cap spring 13 are respectively connected to the inner pressure cap 12 of the fragrance bottle and the inner bracket 14 of the fragrance bottle.

[0031] like Figure 4 As shown, the fragrance bottle inner support 14 has a hollow structure, and the bottom of the fragrance bottle inner support 14 is provided with an inner support air inlet 141 and an inner support air outlet 142.

[0032] like Figure 5 As shown, the top of the outer cap 11 of the fragrance bottle is provided with an outer cap opening 111, the top of the inner cap 12 of the fragrance bottle is provided with a top protruding ring 122 that can be inserted into the outer cap opening 111, the inner cap 12 of the fragrance bottle is a hollow structure, and the bottom of the inner cap 12 of the fragrance bottle is provided with an inner cap opening 123.

[0033] like Figure 5 As shown, when the fragrance bottle cap 1 is not installed on the fragrance generator 2, the fragrance bottle separator 15 is tightly attached to the bottom of the fragrance bottle inner support 14 under the elastic force of the inner pressure cap spring 13, and the fragrance bottle cap 1 is in an automatic closed state.

[0034] like Figure 6 As shown, after the fragrance bottle cap 1 is screwed tightly onto the fragrance generator 2, the fragrance generator 2 presses down the inner cap 12, overcoming the elastic force of the inner cap spring 13, causing the fragrance bottle separator 15 to leave the bottom of the fragrance bottle inner support 14, thus opening the air passage. The outer cap opening 111 and the internal cavity of the fragrance bottle inner support 14 are connected to the space inside the fragrance bottle body 3 through the inner support air inlet 141, forming an air inlet channel for external air to flow into the fragrance bottle. The internal cavity of the fragrance bottle inner cap 12 and the inner cap opening 123 are connected to the space inside the fragrance bottle body 3 through the inner support air outlet 142, forming an air outlet channel for fragrance gas to flow out of the fragrance bottle. The fragrance bottle cap 1 is thus opened, allowing external air to flow into the fragrance bottle body 3, carry the fragrance, and then flow out.

[0035] like Figure 3As shown, a first internal sealing ring 16 is provided on the top of the inner side of the fragrance bottle cap 11. The first internal sealing ring 16 forms a seal between the fragrance bottle cap 11, the fragrance bottle inner support 14, and the fragrance bottle body 3. This can prevent liquid fragrance from overflowing or leaking from the mating point of the fragrance bottle cap 11, the fragrance bottle body 3, and the fragrance bottle inner support 14.

[0036] like Figure 3 As shown, a second internal sealing ring 17 is fitted onto the top protruding ring 122. When the fragrance bottle cap 1 is not installed, the second internal sealing ring 17 fits against the inside of the outer cap opening 111. When not in use, the second internal sealing ring 17 forms a seal between the top protruding ring 122 and the outer cap opening 111. This ensures that the entire fragrance bottle assembly remains sealed before installation.

[0037] like Figure 1 and Figure 2 As shown, the fragrance generator 2 includes an interlocking upper cover 21 and a lower cover 22. The fragrance generator 2 contains an air duct assembly and a mounting bracket 27. The fragrance bottle cap 1 is rotatably mounted on the bottom of the mounting bracket 27. A third sealing ring 271 is provided on the top inner side of the mounting bracket 27, forming a seal between the mounting bracket 27 and the fragrance bottle cap 1. Figure 2 As shown, the lower cover 22 has a fragrance bottle placement slot 221 with a bottom opening. The fragrance bottle placement slot 221 is located below the mounting bracket 27, and the fragrance bottle 3 is placed in it through the bottom opening of the fragrance bottle placement slot 221.

[0038] like Figure 2 and Figure 7 As shown, the air duct assembly includes an air inlet pipe 231 and an air outlet pipe 232, which are parallel to each other and form a sealed channel with the top cover 21. One side of the air inlet pipe 231 is connected to the top of the mounting bracket 27 and communicates with the air inlet channel of the fragrance bottle. The end of one side of the air outlet pipe 232 is bent downward and extends to the top protruding ring 122, communicating with the air outlet channel of the fragrance bottle. In this state, the second internal sealing ring 17 acts as a seal between the end of the air outlet pipe and the top protruding ring 122.

[0039] like Figure 2 and Figure 8 As shown, a rotating sleeve 24 is provided on the side of the air duct assembly away from the mounting bracket 27. The top of the rotating sleeve 24 is provided with an air inlet valve in the air inlet pipe 231 and an air outlet valve in the air outlet pipe 232. A rotor 241 is provided inside the rotating sleeve 24. The rotor 241 is a thin-walled cylindrical structure. A notch is provided on the side wall of the rotor 241. A motor 242 is provided inside the fragrance generator 2 to drive the rotor 241 to rotate.

[0040] like Figure 1As shown, the fragrance generator 2 has a fan cover 25 on its side, and a fan outlet 252 on the fan cover 25.

[0041] like Figure 2 As shown, a vortex fan 251 is installed inside the fan cover 25, and a fan inlet 253 is provided on the side of the fan cover 25. A fan inlet duct 254 is connected to the fan inlet 253, and the fan inlet duct 254 is connected to the rotating sleeve 24 at the bottom of the air outlet duct 232. After the rotor 241 rotates, the fan inlet duct 254 can be connected to or closed with the air outlet duct 232.

[0042] like Figure 7 As shown, the intake pipe 231 has a main intake channel 26 on its side and a main intake port 211 on its upper cover 21. The inlet of the main intake channel 26 is connected to the main intake port 211, and the outlet of the main intake channel 26 is connected to the rotating sleeve 24 at the bottom of the intake pipe 231. After the rotor 241 rotates, the main intake channel 26 can be connected to or closed with the intake pipe 231.

[0043] like Figure 7 and Figure 8 As shown, motor 242 drives rotor 241 to rotate, simultaneously opening the inlet and outlet valves. Vortex fan 251 operates, forcing gas to flow within the device. The overall gas path is as follows: external air is drawn into the main inlet duct 26 through the main inlet 211, then enters the inlet pipe 231 through the inlet valve, passes through the inner cavity of the mounting bracket 27 and the fragrance bottle inlet channel, and enters the fragrance bottle body 3. Inside the fragrance bottle body 3, the air carries the fragrance, becoming fragrance gas. The fragrance gas is drawn into the outlet pipe 232 through the fragrance bottle outlet channel, then through the outlet valve and the fan inlet duct 254, and is drawn into the vortex fan 251. Finally, the vortex fan 251 sprays the fragrance from the fan outlet 252, achieving fragrance delivery.

[0044] like Figure 9 As shown, the outer side of the fragrance bottle cap 11 has a recessed slot 112, and a protruding limiting block 113 is provided on one side of the slot 112. The fragrance generator 2 is equipped with an anti-backward device, which includes a ball cap 272, a ball 273, and a locking spring 274. The ball 273 is installed in the ball cap 272, and the locking spring 274 is located between the bottom of the ball cap 272 and the ball 273, providing elasticity for the ball 273. After the fragrance bottle cap 1 is screwed tightly onto the fragrance generator 2, the ball 273 is engaged in the slot 112 under the elasticity of the locking spring 274 and an audible prompt is made.

[0045] like Figure 2 As shown, the fragrance generator 2 has a main PCB board 28 inside, and LED beads are installed on the main PCB board 28. The light emitted by the LED beads directly shines on the glass fragrance bottle 3 and is refracted, making the product more beautiful.

[0046] like Figure 2 As shown, the fragrance generator 2 contains an NFC reading PCB board 29. (As indicated...) Figure 3 As shown, the top of the fragrance bottle cap 11 is equipped with an NFC chip 114, and the NFC chip 114 is covered with an NFC protective cover 115. The NFC chip 114 is read by the NFC reading PCB board 29 to achieve induction recognition.

[0047] The above-described specific embodiments are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Various modifications, substitutions, and improvements made by those skilled in the art to the technical solutions of the present invention based on the provided textual description and drawings, without departing from the design concept and spirit of the present invention, should all fall within the scope of protection of the present invention. The scope of protection of the present invention is determined by the claims.

Claims

1. A novel fragrance bottle cap and fragrance generator, characterized in that, The fragrance bottle cap (1) includes an outer cap (11), an inner pressure cap (12), an inner pressure cap spring (13), an inner support (14), and a fragrance bottle separator (15). The fragrance bottle cap (1) can be rotated and installed on the fragrance generator (2). When the fragrance bottle cap (1) is not installed on the fragrance generator (2), the fragrance bottle cap (1) is in an automatically closed state under the elastic force of the inner pressure cap spring (13); After the fragrance bottle cap (1) is screwed onto the fragrance generator (2), the fragrance generator (2) mechanically presses against the elastic force of the inner pressure cap spring (13), causing the fragrance bottle cap (1) to be opened, forming a channel for the fragrance gas to flow out.

2. A novel fragrance bottle cap and fragrance generator according to claim 1, characterized in that, The fragrance bottle inner support (14) is located inside the fragrance bottle outer cap (11). The fragrance bottle inner pressure cap (12) is located between the fragrance bottle outer cap (11) and the fragrance bottle inner support (14) and can move up and down. The fragrance bottle inner pressure cap (12) has an inner pressure cap support (121) at its lower part. The inner pressure cap support (121) passes through the bottom of the fragrance bottle inner support (14). The fragrance bottle separator (15) is connected to the bottom of the inner pressure cap support (121) and is located below the fragrance bottle inner support (14). The inner pressure cap spring (13) is sleeved on the inner pressure cap support (121). The two ends of the inner pressure cap spring (13) are respectively connected to the fragrance bottle inner pressure cap (12) and the fragrance bottle inner support (14).

3. A novel fragrance bottle cap and fragrance generator according to claim 2, characterized in that, The fragrance bottle inner support (14) is a hollow structure. The bottom of the fragrance bottle inner support (14) is provided with an inner support air inlet (141) and an inner support air outlet (142). The top of the fragrance bottle outer cap (11) is provided with an outer cap opening (111). The top of the fragrance bottle inner pressure cap (12) is provided with a top protruding ring (122) that can be inserted into the outer cap opening (111). The fragrance bottle inner pressure cap (12) is a hollow structure. The bottom of the fragrance bottle inner pressure cap (12) is provided with an inner pressure cap opening (141). 123) When the fragrance bottle cap (1) is open, the outer cap opening (111) and the inner cavity of the fragrance bottle support (14) are connected to the space inside the fragrance bottle body (3) through the inner support air inlet (141) to form an air inlet channel for external air to flow into the fragrance bottle. The inner cavity of the fragrance bottle inner cap (12) and the inner cap opening (123) are connected to the space inside the fragrance bottle body (3) through the inner support air outlet (142) to form an air outlet channel for fragrance gas to flow out of the fragrance bottle.

4. A novel fragrance bottle cap and fragrance generator according to claim 3, characterized in that, The top of the inner side of the fragrance bottle cap (11) is provided with a first internal sealing ring (16), which forms a seal between the fragrance bottle cap (11), the fragrance bottle inner support (14) and the fragrance bottle body (3).

5. A novel fragrance bottle cap and fragrance generator according to claim 3, characterized in that, A second internal sealing ring (17) is fitted on the top protruding ring (122). When the fragrance bottle cap (1) is not installed, the second internal sealing ring (17) fits against the inside of the outer cap opening (111), and the second internal sealing ring (17) forms a seal between the top protruding ring (122) and the outer cap opening (111).

6. A new type of fragrance bottle cap and fragrance generator according to claim 3, characterized in that, The fragrance generator (2) is equipped with an air duct assembly and a mounting bracket (27). The air duct assembly includes an air inlet pipe (231) and an air outlet pipe (232), which are parallel. The fragrance generator (2) has a fragrance bottle placement slot (221) with a bottom opening. The fragrance bottle placement slot (221) is located below the mounting bracket (27). The fragrance bottle (3) is placed in the fragrance bottle placement slot (221) through the bottom opening. The fragrance bottle cap (1) is rotatably installed on the bottom of the mounting bracket (27). The air inlet pipe (231) is connected to the air inlet channel of the fragrance bottle, and the air outlet pipe (232) is connected to the air outlet channel of the fragrance bottle. The air duct assembly is provided with a rotating sleeve (24) on the side away from the mounting bracket (27). The rotating sleeve (24) is provided with a rotor (241). The rotor (241) is a thin-walled cylindrical structure. The side wall of the rotor (241) is provided with a notch. The fragrance generator (2) is provided with a motor (242) that drives the rotor (241) to rotate. The rotation of the rotor (241) synchronously opens or closes the air inlet pipe (231) and the air outlet pipe (232).

7. A novel fragrance bottle cap and fragrance generator according to claim 6, characterized in that, The fragrance generator (2) is provided with a fan cover (25), a fan outlet (252) is provided on the fan cover (25), a vortex fan (251) is provided inside the fan cover (25), a fan inlet (253) is provided on the side of the fan cover (25), a fan inlet channel (254) is connected to the fan inlet channel (253), the fan inlet channel (254) is connected to the rotating sleeve (24) at the bottom of the air outlet channel (232), a main air inlet channel (26) is provided on the side of the air inlet channel (231), a main air inlet (211) is provided on the outer shell of the fragrance generator (2), the inlet of the main air inlet channel (26) is connected to the main air inlet (211), and the outlet of the main air inlet channel (26) is connected to the rotating sleeve (24) at the bottom of the air inlet channel (231).

8. A novel fragrance bottle cap and fragrance generator according to claim 7, characterized in that, The mounting bracket (27) has a third sealing ring (271) on its inner top, which forms a seal between the mounting bracket (27) and the fragrance bottle cap (1).

9. A new type of fragrance bottle cap and fragrance generator according to claim 1, characterized in that, The outer side of the fragrance bottle cap (11) is provided with a recessed slot (112), and a protruding limiting block (113) is provided on one side of the slot (112). The fragrance generator (2) is provided with an anti-backward device, which includes a ball cap (272), a ball (273) and a locking spring (274). After the fragrance bottle cap (1) is screwed and installed onto the fragrance generator (2), the ball (273) is inserted into the slot (112) under the elastic force of the locking spring (274) and makes an audible prompt.

10. A new fragrance bottle cap and fragrance generator according to claim 1, characterized in that, The fragrance generator (2) is equipped with a main PCB board (28), and the main PCB board (28) is equipped with LED beads. The light emitted by the LED beads directly shines on the glass fragrance bottle (3) and is refracted.

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