Dispensing machine

Abstract

The application provides a scent dispenser, comprising: a housing comprising a first shell and a second shell rotating relative to each other, the first shell and the second shell being connected to form a containing cavity, the containing cavity comprising a fragrance area and an airflow channel; the housing is provided with a scent outlet, the airflow channel being communicated with the fragrance area and the scent outlet; a fan blade is arranged in the airflow channel; a first transmission structure is arranged on the first shell; a second transmission structure is connected with the fan blade; the first transmission structure has a first state of transmission connection with the second transmission structure, and the first transmission structure has a second state of transmission disconnection with the second transmission structure; when the first transmission structure is in the first state, the first shell rotates relative to the second shell, the fan blade is driven to rotate through the transmission cooperation of the first transmission structure and the second transmission structure, and the first transmission structure and the second transmission mechanism gradually move away until the first transmission structure is in the second state, the fan blade rotates under the action of inertia, and the scenting efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of aromatherapy product technology, and more particularly to an aroma diffuser. Background Technology

[0002] Existing fragrance diffusers employ a double-shell rotating structure, comprising an upper shell and a lower shell that can rotate relative to each other, forming a fragrance chamber for containing fragrances. The shells have fragrance dispersing holes communicating with the fragrance chamber, and fan blades are installed within the airflow channel between the dispersing holes and the fragrance chamber. When the two shells rotate relative to each other, the fan blades are driven to rotate, enhancing the fragrance volatilization effect. However, since the fan blade rotation relies entirely on manual rotation of the shells, short-term rotation is insufficient to drive the fan blades at high speed, resulting in insufficient airflow. Users need to continuously apply significant torque and maintain rotation for a considerable period to achieve sufficient airflow, leading to a poor user experience. Utility Model Content

[0003] The main technical problem this application addresses is the low efficiency of the fan blades in existing incense diffusers, which requires users to apply significant force to operate them, making the process laborious and resulting in a poor overall user experience.

[0004] To solve the above-mentioned technical problems, this application provides a fragrance diffuser comprising:

[0005] The outer shell includes a first shell and a second shell rotatably connected to each other, the first shell and the second shell being connected to form a receiving cavity, the receiving cavity including a fragrance area and an airflow channel, the fragrance area being used to contain fragrance; the outer shell is provided with a fragrance dispersing vent, the airflow channel connecting the fragrance area and the fragrance dispersing vent;

[0006] Fan blades are located within the airflow channel;

[0007] A first transmission structure is disposed on the first housing;

[0008] A second transmission structure is connected to the fan blades; the first transmission structure and the second transmission structure are located within the receiving cavity;

[0009] The first transmission structure has a first state in which it is connected to the second transmission structure, and a second state in which it is disconnected from the second transmission structure. When the first transmission structure is in the first state, the first housing rotates relative to the second housing, and the fan blade rotates through the transmission cooperation of the first transmission structure and the second transmission structure. The first transmission structure and the second transmission structure gradually move away from each other until the first transmission structure is in the second state, at which point the fan blade rotates under inertia.

[0010] Further optionally, the first transmission structure includes an internal gear portion disposed on the first housing; the second transmission structure includes a shaft and a first gear connected to each other, the shaft being connected to the fan blade, and the first gear being drivenly connected to the internal gear portion.

[0011] Optionally, the second transmission structure further includes a second gear. In the first state, the second gear meshes with the first gear and is connected to the internal gear portion. The second housing has a travel groove, and the second gear has a protrusion. The protrusion engages with the travel groove and can slide within the travel groove. The travel groove has a starting end and an ending end. The process of the protrusion sliding from the starting end to the ending end triggers the first transmission structure to switch from the first state to the second state.

[0012] Further optionally, the second gear includes an upper gear and a lower gear connected to each other, the upper gear and the lower gear being coaxially arranged, the upper gear meshing with the first gear, the lower gear being drivingly connected to the internal gear portion, and the number of teeth of the upper gear being greater than the number of teeth of the lower gear.

[0013] Further optionally, the second transmission structure further includes a third gear, which is rotatably mounted on the second housing; the third gear meshes with the internal gear portion and the second gear respectively.

[0014] Further optionally, the travel groove is arc-shaped; the concave portion of the travel groove faces the third gear, and the center of the travel groove coincides with the center of the third gear; or, the concave portion of the travel groove faces the first gear, and the center of the travel groove coincides with the center of the first gear.

[0015] Optionally, the second housing includes a detachably connected bottle and a frame. The bottle contains a fragrance zone and has an opening communicating with the fragrance zone. The frame is located at the opening and is rotatably connected to the first housing. A mounting groove is formed on the side of the frame away from the fragrance zone. The frame has an upper sidewall and a lower sidewall opposite to each other along the height direction of the fragrance diffuser, corresponding to the mounting groove. The second gear is located within the mounting groove, and the second gear has protrusions at both ends along the height direction of the fragrance diffuser. The upper and lower sidewalls each have a travel groove, and the two protrusions correspond one-to-one with the two travel grooves.

[0016] Alternatively, the incense diffuser may further include a bearing, the second housing having a bearing fixing position, the outer ring of the bearing being fixedly connected to the bearing fixing position; the inner ring of the bearing being sleeved on the shaft and fixedly connected to the shaft.

[0017] Alternatively, the fan blades include a hub and blades connected to each other, and the hub is provided with a counterweight.

[0018] The beneficial effects of this application are as follows: By configuring a first housing and a second housing that are rotatably connected relative to each other, a first transmission structure connected to the first housing, and a second transmission structure connected to the fan blades, with the fan blades positioned within the space connecting the fragrance area and the fragrance dispersing opening, when the first housing and the second housing rotate relative to each other, the first transmission structure can be driven from a first state to a second state. In the first state, the first transmission structure and the second transmission structure maintain a transmission connection, and the rotation of the first housing drives the second transmission structure and the fan blades to rotate through the first transmission structure. Simultaneously, the first transmission structure drives the second transmission structure to gradually move away from the first transmission structure. Until the first transmission structure enters the second state from the first state, at this point, the first transmission structure disengages from the transmission connection with the second transmission structure, and the second transmission structure and the fan blades rotate under inertia. The user only needs to drive the first housing to rotate relative to the second housing by a small angle to switch the first transmission structure from the first state to the second state, thus achieving continuous fan blade rotation even after the first housing and the second housing stop rotating relative to each other, improving fragrance dispersing efficiency, reducing user operation time, and enhancing ease of use. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0020] Figure 1 A schematic diagram of the structure of a fragrance diffuser according to one embodiment;

[0021] Figure 2 for Figure 1 A schematic diagram of another form of the incense dispenser;

[0022] Figure 3 for Figure 1 A cross-sectional view of a traditional incense dispersing machine;

[0023] Figure 4 A cross-sectional view of a portion of the structure of a fragrance diffuser according to one embodiment;

[0024] Figure 5 A partial structural schematic diagram of a fragrance diffuser according to one embodiment;

[0025] Figure 6 A partial structural schematic diagram of a fragrance diffuser according to another embodiment;

[0026] Figure 7 A schematic diagram of the lifting component according to one embodiment;

[0027] Figure 8 This is a schematic diagram of the structure of the second gear in one embodiment.

[0028] Icon description:

[0029] 1. Outer shell; 11. First shell; 111. Cover; 1111. Top cover; 1112. Peripheral side wall; 112. Annular frame; 1121. Sliding protrusion; 12. Second shell; 121. Bottle body; 1211. Bottle mouth; 122. Frame; 1221. Base frame; 1222. Upper frame; 1223. Mounting groove; 1224. Upper side wall; 1225. Lower side wall; 1226. Connecting hole; 1227. Bearing fixing position; 123. Stroke groove; 1231. Starting end; 1232. End; 13. Receiving cavity; 131. Fragrance area; 132. Mounting area; 133. Airflow channel; 14. Fragrance outlet;

[0030] 2. First transmission structure; 21. Internal gear section;

[0031] 3. Second transmission structure; 31. Shaft; 32. First gear; 33. Second gear; 331. Lower gear; 332. Upper gear; 333. Protrusion; 34. Third gear;

[0032] 4. Fan blades; 41. Hub; 42. Blades;

[0033] 5. Bearing; 51. Outer ring; 52. Inner ring;

[0034] 6. Lifting components; 61. Sliding groove;

[0035] 7. Counterweight.

[0036] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0037] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0038] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0039] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the term "and / or" throughout the text includes three solutions; taking A and / or B as an example, it includes technical solution A, technical solution B, and a technical solution that simultaneously satisfies A and B. Furthermore, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0040] Fragrance diffusers typically have a fragrance chamber to hold fragrances, and a fragrance diffuser 14 is provided on the outer casing 1 of the fragrance diffuser. The fragrance diffuser 14 is connected to the fragrance chamber so that the fragrance of the fragrance can diffuse to the outside through the fragrance diffuser 14.

[0041] This application provides a fragrance diffuser, as referenced. Figures 1 to 8 The fragrance diffuser includes a housing 1, a fan blade 4, a first transmission structure 2, and a second transmission structure 3. The housing 1 includes a first shell 11 and a second shell 12 that are rotatably connected to each other. The first shell 11 and the second shell 12 are connected to form a receiving cavity 13, which is located inside the housing 1. The receiving cavity 13 includes a fragrance area 131 and an airflow channel 133. The fragrance area 131 is used to contain fragrances. The housing 1 is provided with a fragrance dispersing port 14, and the airflow channel 133 connects the fragrance area 131 and the fragrance dispersing port 14. The fan blade 4 is located in the airflow channel 133. When the fan blade 4 rotates, it can drive the gas flow in the airflow channel 133, thereby promoting the flow of gas in the fragrance cavity area. The flowing gas passes over the surface of the fragrance, carries fragrance molecules to form a fragrant gas, and is discharged from the receiving cavity 13 through the fragrance dispersing port 14, thereby achieving effective diffusion of fragrance.

[0042] Furthermore, the first transmission structure 2 and the second transmission structure 3 are located within the receiving cavity 13; the first transmission structure 2 is disposed on the first housing 11 and rotates with the first housing 11; the second transmission structure 3 is connected to the fan blade 4, and when it rotates, it can drive the fan blade 4 to rotate synchronously; the first transmission structure 2 can be connected to the second transmission structure 3 to transmit power when the first housing 11 and the second housing 12 rotate relative to each other.

[0043] The first transmission structure 2 has a first state in which it is connected to the second transmission structure 3, and a second state in which it is disconnected from the second transmission structure 3. When the first transmission structure 2 is in the first state, the first housing 11 rotates relative to the second housing 12, and the fan blade 4 is driven to rotate through the transmission cooperation of the first transmission structure 2 and the second transmission structure 3. The first transmission structure 2 and the second transmission structure 3 gradually move away from each other until the first transmission structure 2 is in the second state, at which point the fan blade 4 rotates under the action of inertia.

[0044] This application establishes a rotatable connection between a first housing 11 and a second housing 12, a first transmission structure 2 connected to the first housing 11, and a second transmission structure 3 connected to a fan blade 4. The fan blade 4 is positioned within the space connecting the fragrance area 131 and the fragrance outlet 14. When the first housing 11 and the second housing 12 rotate relative to each other, the first transmission structure 2 can be driven to transition from a first state to a second state. In the first state, the first transmission structure 2 and the second transmission structure 3 maintain a transmission connection. The rotation of the first housing 11 drives the second transmission structure 3 and the fan blade 4 to rotate via the first transmission structure 2, while simultaneously driving the second transmission structure 3 to gradually move away. When the first transmission structure 2 transitions from the first state to the second state, it disengages from the transmission connection with the second transmission structure 3, and the second transmission structure 3 and the fan blade 4 idle under inertia. Users only need to drive the first housing 11 to rotate a small angle relative to the second housing 12 to switch the first transmission structure 2 from the first state to the second state. This will enable the fan blade 4 to continue rotating after the first housing 11 and the second housing 12 stop rotating relative to each other, thereby improving the fragrance dispersal efficiency, reducing user operation time, and increasing ease of use.

[0045] In one implementation, such as Figures 1 to 4As shown, the outer casing 1 of the fragrance diffuser includes a first casing 11 and a second casing 12, which are connected to each other to form an internal receiving cavity 13. The space within the receiving cavity 13 that communicates with the fragrance area 131 and the fragrance outlet 14 is called an airflow channel 133. A fan blade 4 is disposed within the airflow channel 133, driving the gas flow within the airflow channel 133, which in turn drives the gas flow within the fragrance area 131, allowing the fragrant gas to flow out of the airflow channel 133. The first casing 11 includes, for example, a cover 111, and the second casing 12 includes, for example, a bottle 121. The bottle 121 has a bottle opening 1211, and the cover 111 is placed over the bottle opening 1211. The internal space of the bottle 121 is the fragrance area 131, and the internal space of the cover 111 is the mounting area 132. The fragrance area 131 and the mounting area 132 are connected to form the receiving cavity 13. The fan blade 4, the first transmission structure 2, and the second transmission structure 3 are all located within the mounting area 132, and the mounting area 132 is connected to the fragrance area 131. The fragrance outlet 14 is located on the cover 111, connecting the mounting area 132 and the fragrance area 131. The airflow channel 133 is the connecting space formed by the fragrance area and the mounting area 132. In other embodiments, the mounting area 132 can be isolated from the fragrance area 131 by an isolation part. The first transmission structure 2 and the second transmission structure 3 are located within the mounting area 132, and the fan blade 4 is located within the fragrance area 131. The second transmission structure 3 can have a through-hole portion passing through the isolation part and connecting to the fan blade 4, allowing the fan blade 4 to rotate together with the second transmission part. The fragrance outlet 14 can also be located on the second housing 12, with the fan blade 4 also located within the second housing 12; alternatively, the fragrance outlet 14 can be located on the first housing 11, with the fan blade 4 located within the second housing 12. The positions of the aroma outlet 14 and the fan blade 4 are not uniquely defined; the space that connects to the aroma outlet 14 and the fragrance area 131 is called the airflow channel 133, and the specific position of the fan blade 4 within the airflow channel 133 is also not uniquely defined.

[0046] In some embodiments, the first transmission structure 2 includes, for example, an internal gear connected to the first housing 11, or the first transmission structure 2 includes an internal gear portion 21 integrally formed with the first housing 11. The second transmission structure 3 includes, for example, a rotating shaft, a spring assembly, and an external gear, both of which are mounted on the rotating shaft. The external gear can mesh with the internal gear, and the rotating shaft is engaged with the second housing 12. The internal gear and the first housing 11 are also connected by a sliding structure. For example, the first housing 11 is provided with a helical groove, and the internal gear is connected with a sliding part that cooperates with the helical groove. When the first housing 11 rotates relative to the second housing 12, the internal gear meshes with the external gear, and the internal gear enters the first state. The rotation of the internal gear drives the external gear to rotate, driving the mainspring to store energy. At the same time, the first housing 11 rotates, and the internal gear rotates along the helical groove, driving the internal gear to gradually move away from the external gear until the internal gear disengages from the external gear, and the internal gear enters the second state. When the internal gear enters the second state from the first state, the mainspring returns to its original state and releases energy. The first housing 11 and the second housing 12 are in a relatively stationary state, and the process of the mainspring returning to its original state drives the fan blade 4 to rotate. In another embodiment, the first transmission structure 2 includes, for example, an internal ratchet, which is provided on the first housing 11. The second transmission structure 3 includes, for example, a rotating shaft, a pawl, and a torsion spring. The rotating shaft is rotatably provided on the second housing 12, and the fan blade 4 is provided on the rotating shaft. The pawl is mounted on the rotating shaft via a pin. A torsion spring provides continuous pressure to the pawl, causing its tip to press against the inner ratchet. When the first housing 11 rotates relative to the second housing 12, the inner ratchet is in the first state. The tooth surface of the inner ratchet pushes the pawl, thereby driving the entire rotating shaft and the fan blade 4 to rotate together. When the first housing 11 and the second housing 12 stop rotating relative to each other, the rotating shaft continues to rotate with the pawl. The back of the pawl (usually a slope or arc) slides along the return tooth surface (usually a slope) of the inner ratchet. During the sliding process, the torsion spring is compressed, causing the pawl to lift up and pass over the tooth tip. The pawl disengages from the transmission connection with the inner ratchet, and the inner ratchet moves from the first state to the second state, thus achieving free rotation.

[0047] In one implementation, reference Figures 1 to 6When the first transmission structure 2 is in the first state, and the first housing 11 rotates relative to the second housing 12, the first transmission structure 2 on the first housing 11 drives the second transmission structure 3 to rotate, and the rotation of the second transmission structure 3 drives the fan blade 4 to rotate. When the first housing 11 rotates relative to the second housing 12 to the point where the first transmission structure 2 enters the second state, the second transmission structure 3 disengages from the transmission connection with the first transmission structure 2. Specifically, when the first housing 11 rotates relative to the second housing 12, the first transmission structure 2 and the second transmission structure 3 are connected. The rotation of the first housing 11 drives the second transmission structure 3 to rotate, providing the second transmission structure 3 with a rotational motion state. When the first transmission structure 2 enters the second state from the first state, the second transmission structure 3 is freed from the restriction of the first transmission structure 2 and, relying on inertia, can continue to rotate, driving the fan blade 4 to rotate. This achieves the goal that when the first housing 11 and the second housing 12 are relatively stationary, the fan blade 4 continues to rotate, thereby reducing the user's operation time and improving the fragrance dispersal efficiency.

[0048] In one implementation, reference Figures 1 to 7 The first transmission structure 2 includes an internal gear 21 mounted on the first housing 11. The second transmission structure 3 includes a shaft 31 and a first gear 32 connected to each other. The shaft 31 is connected to the fan blade 4, and the first gear 32 is connected to the internal gear 21. By providing the internal gear 21, when the first housing 11 and the second housing 12 rotate relative to each other, the internal gear 21 can be driven to rotate, thereby driving the first gear 32 to rotate, ultimately realizing the rotation of the fan blade 4. In addition, by setting the internal gear 21 on the side wall of the first housing 11, the diameter of the internal gear 21 can be increased as much as possible, thereby increasing the number of teeth. This structure is beneficial for driving the first gear 32 to rotate through more teeth when the first housing 11 rotates only a small angle, thereby improving the transmission efficiency and the rotational speed of the fan blade 4.

[0049] Specifically, the first housing 11 includes a cover 111 and an annular frame 112 connected to each other, with the fragrance outlet 14 located on the cover 111. The cover 111 includes a top cover 1111 and a peripheral sidewall 1112, which are connected or integrally formed, forming an installation area 132. The annular frame 112 is located within the installation area 132 and is fixedly connected to the peripheral sidewall 1112. The cover 111 and the annular frame 112 rotate together, with the fragrance outlet 14 located on the top cover 1111. The internal gear 21 is connected to the inner side of the annular frame 112 and located at the bottom of the annular frame 112. The second transmission assembly and the fan blade 4 are located within the space enclosed by the annular frame 112, which facilitates the rational allocation of the internal structure of the fragrance diffuser, resulting in a compact overall structure and effectively reducing the overall size of the machine. The second transmission structure 3 includes a shaft 31 and a first gear 32. One end of the shaft 31 is connected to the fan blade 4, and the other end is connected to the first gear 32. The first gear 32 is rotatably mounted on the second housing 12 and is connected to the internal gear portion 21. When the internal gear portion 21 rotates, it drives the first gear 32 to rotate, which in turn drives the fan blade 4 to rotate via the shaft 31. In other embodiments, the internal gear portion 21 can be directly disposed on the inner side of the peripheral sidewall 1112, and the second transmission assembly and the fan blade 4 are located on the inner side of the peripheral sidewall 1112. The form of the first housing 11 is not uniquely limited here.

[0050] Furthermore, the inner wall of the annular frame 112 is provided with a spirally extending sliding groove 61. The fragrance diffuser also includes a lifting component 6 located in the installation area 132, which has a sliding protrusion 1121 that cooperates with the sliding groove 61. Or, specifically as follows Figure 6 , Figure 7 As shown, the fragrance diffuser also includes a lifting component 6 located in the installation area 132. The outer wall of the lifting component 6 is provided with a spirally extending sliding groove 61, and the annular frame 112 is provided with a sliding protrusion 1121 on its inner wall that cooperates with the sliding groove 61. When the cover 111 and the annular frame 112 rotate together relative to the second housing 12, the relative movement of the sliding groove 61 and the sliding protrusion 1121 drives the lifting component 6 to move up and down along the height direction of the fragrance diffuser. At the same time, the rotation of the first housing 11, through the cooperation of the first transmission structure 2 and the second transmission structure 3, drives the fan blade 4 to rotate. This integrated design allows the user to simultaneously open and close the fragrance outlet 14 and drive the fan blade 4 with only a single action of rotating the first housing 11, without separate operation; it reduces the ineffective volatilization of fragrance, reduces the complexity of user operation, and improves the fragrance diffusion efficiency. The shape of the lifting component 6 matches the shape of the fragrance vent 14; for example, when the lifting component 6 is raised to the highest position, the lifting component 6 forms a barrier to the fragrance vent 14, preventing the fragrance from spreading; when the lifting component 6 moves away from the top cover 1111 and descends, the lifting component 6 and the top cover 1111 are misaligned, allowing the fragrance vent 14 to be exposed and the fragrance to be released.

[0051] In one implementation, reference Figures 4 to 6 The second transmission structure 3 also includes a second gear 33. In the first state, the second gear 33 meshes with the first gear 32 and is connected to the internal gear section 21 to form a transmission link. When the first housing 11 rotates, it drives the internal gear section 21 to rotate. The rotation of the internal gear section 21 drives the second gear 33 to rotate, which in turn drives the first gear 32 to rotate, thus rotating the fan blade 4. According to the gear transmission principle, with a fixed number of teeth in the internal gear section 21, the fewer the number of teeth and the smaller the diameter of the first gear 32, the more rotations the first gear 32 will make when the first housing 11 rotates by the same angle. Therefore, reducing the size of the first gear 32 allows the user to drive the fan blade 4 to obtain a higher speed with a smaller rotation angle. The fan blade 4 is located inside the annular frame 112 and is set on the central axis of the annular frame 112 via the shaft 31 to ensure that the fan blade 4 is centrally arranged and enhances the gas flow effect. Since the diameter of the first gear 32 is small, it cannot mesh with the internal gear 21 if it is directly set at the central axis. Therefore, the transmission connection and positional adaptation between the internal gear 21 and the first gear 32 are achieved by adding a second gear 33.

[0052] The second housing 12 includes a detachably connected bottle body 121 and a frame 122. The bottle body 121 has a fragrance zone 131 inside, and its top has a bottle opening 1211 communicating with the fragrance zone 131. The frame 122 is installed above or inside the bottle opening 1211 to support the second transmission structure 3. The frame 122 is rotatably connected to the first housing 11, and the frame 122 is fitted around at least a portion of the circumferential outer side of the first housing 11. Specifically, to achieve relative rotation between the frame 122 and the first housing 11, a first annular groove and a first locking part are provided between the frame 122 and the cover 111, which engage with each other. The first annular groove is provided on the frame 122, and the first locking part is provided on the cover 111. A second annular groove and a second locking part are provided between the frame 122 and the annular frame 112, with the second locking part on the frame 122 and the second annular groove on the annular frame 112. The above-mentioned snap-fit ​​structure enables a reliable connection and relative rotation between the frame 122 and the first housing 11, and allows the frame 122 to move synchronously with the bottle 121.

[0053] The second housing 12 is provided with a travel groove 123, such as Figure 5 and Figure 8As shown, the second gear 33 has a protrusion 333, which is connected to the stroke groove 123 and can slide within the stroke groove 123. The stroke groove 123 has a starting end 1231 and an ending end 1232. The process of the protrusion 333 sliding from the starting end 1231 to the ending end 1232 triggers the first transmission structure 2 to switch from the first state to the second state. Specifically, the frame 122 is provided with a connecting hole 1226, which connects the fragrance area 131 and the fragrance outlet 14. The shaft 31 is rotatably mounted on the frame 122, and the second gear 33 has a protrusion 333, which is connected to the stroke groove 123 and can slide within the stroke groove 123. A travel groove 123 is provided on the frame 122. The travel groove 123 has a starting end 1231 and an ending end 1232. When the protrusion 333 is located at the starting end 1231, the second gear 33 simultaneously meshes with the internal gear 21 and the first gear 32. The rotation of the internal gear 21 can drive the second gear 33 to rotate. The second gear 33 meshes with the first gear 32. The rotation of the second gear 33 can drive the first gear 32 to rotate. At this time, the rotation of the first housing 11 can drive the first gear 32 and the fan blade 4 to rotate through the internal gear 21 and the second gear 33. When the protrusion 333 is located at the ending end 1232, the internal gear 21 and the first gear 32 are disconnected from the transmission connection. At this time, the second gear 33 disengages from the first gear 32. For example, when the protrusion 333 is located at the starting end 1231, the user starts to rotate the first housing 11. The internal gear 21 rotates, driving the second gear 33 to rotate. At this time, the second gear 33 meshes with the first gear 32, and the second gear 33 drives the first gear 32 to rotate. When the user continues to rotate the first housing 11, the internal gear 21 continues to drive the second gear 33 to rotate, causing the protrusion 333 to slide from the starting end 1231 to the end end 1232. During this process, the second gear 33 gradually disengages from the first gear 32 until the internal gear 21 and the first gear 32 are disengaged from the transmission connection. At this time, the internal gear 21 enters the second state, and the protrusion 333 moves to the end end 1232. As the protrusion 333 slides from the starting end 1231 to the end 1232, it triggers the first transmission structure 2 to switch from the first state to the second state. The fan blade 4 rotates under the drive of the internal gear 21 until the second gear 33 disengages from the first gear 32. The fan blade 4 continues to rotate under the inertia of the first gear 32, thereby achieving continuous operation of the fan blade 4 with only a small operating torque, improving the fragrance dissipation efficiency and optimizing the user experience.

[0054] In one implementation, reference Figure 4 and Figure 8The second gear 33 includes an upper gear 332 and a lower gear 331 connected to each other. The upper gear 332 and the lower gear 331 are coaxially arranged. The upper gear 332 meshes with the first gear 32, and the lower gear 331 is connected to the internal gear section 21 for transmission. The number of teeth of the upper gear 332 is greater than the number of teeth of the lower gear 331. According to the gear transmission principle, the rotational speed of the internal gear section 21 is denoted as N1, and the number of teeth is Z1; the number of teeth of the upper gear 332 is denoted as Z. 22 The number of teeth on the lower gear 331 is denoted as Z. 21 The rotational speed of the second gear 33 is N2 = N1 × (Z1 / Z). 21 Since the upper gear 332 and the lower gear 331 are coaxial and fixed, and their rotational speeds are the same, the rotational speed of the first gear 32 is N3 = N2 × (Z). 22 / Z3)=N1×(Z1 / Z 21 )×(Z 22 / Z3), where Z3 is the number of teeth of the first gear 32.

[0055] From the above equation, it can be seen that in Z1, Z 21 With Z3 unchanged, increase the number of teeth Z of the upper gear 332. 22 This effectively increases the rotational speed N3 of the first gear 32. Therefore, by setting the number of teeth on the upper gear 332 to be greater than the number of teeth on the lower gear 331, the number of rotations of the first gear 32 can be significantly increased while the internal gear 21 rotates the same number of times. This transmission structure allows the user to drive the first housing 11 to rotate relative to the second housing 12 by a small angle, which, through the speed-increasing transmission of the first transmission structure 2 and the second transmission structure 3, drives the fan blade 4 to rotate at a speed and angle much greater than the relative rotation angle and speed between the first housing 11 and the second housing 12. Specifically, the number of rotations of the fan blade 4 is much greater than the number of rotations of the first housing 11 relative to the second housing 12, thereby achieving efficient airflow drive and fragrance diffusion.

[0056] In one embodiment, the second transmission structure 3 further includes a third gear 34, which is rotatably mounted on the second housing 12. The third gear 34 meshes with the internal gear portion 21 and the second gear 33. Since the second gear 33 uses an upper gear 332 and a lower gear 331 arranged coaxially, and the upper gear 332 has more teeth than the lower gear 331, the pitch circle diameter of the upper gear 332 is larger than that of the lower gear 331 when the module is the same. If the second gear 33 is directly mounted inside the annular frame 112, the large diameter difference can easily lead to the following problems: when the lower gear 331 meshes with the internal gear portion 21, the larger-diameter upper gear 332 may structurally interfere with the annular frame 112; or, if the installation position is adjusted to avoid interference, the lower gear 331 may not be able to mesh normally with the internal gear portion 21, affecting the reliability of the transmission. By adding a third gear 34 as an intermediate transmission wheel, located between the second gear 33 and the internal gear portion 21, the spatial positional relationship between the gears can be effectively coordinated. This design allows the lower gear 331 to have a smaller diameter and the upper gear 332 to have a larger diameter, thereby achieving a larger transmission ratio while ensuring that interference with the annular frame 112 is avoided. With the same number of rotations of the internal gear 21, the output speed and number of rotations of the first gear 32 can be significantly increased, enhancing the driving effect of the fan blade 4.

[0057] In one implementation, reference Figure 4 and Figure 5The travel groove 123 is arc-shaped, and its concave portion can be oriented towards either the third gear 34 or the first gear 32. When the concave portion faces the third gear 34, the center of the travel groove 123 coincides with the center of the third gear 34; when the concave portion faces the first gear 32, the center of the travel groove 123 coincides with the center of the first gear 32. The travel groove 123 has a starting end 1231 and an ending end 1232, and the axes of the first gear 32 and the third gear 34 are radially distributed along the internal tooth portion 21. In the diametrical direction of the internal tooth portion 21, the distance between the starting end 1231 and the ending end 1232 is d. If the concave portion of the travel groove 123 faces the first gear 32, then the value of d is greater than or equal to the tooth height of the third gear 34. The protrusion 333, for example, protrudes from the surface of the lower gear 331 away from the upper gear 332. When the protrusion 333 is located at the starting end 1231, the internal gear 21 is in the first state. At this time, the third gear 34 meshes with both the lower gear 331 and the internal gear 21, while the upper gear 332 meshes with the first gear 32. When the internal gear 21 rotates, it drives the third gear 34 to rotate, which in turn drives the lower gear 331 to rotate. Simultaneously, it pushes the protrusion 333 to slide along the trajectory of the stroke groove 123 from the starting end 1231 to the ending end 1232, causing the lower gear 331 to gradually move away from the third gear 34. When the distance that the protrusion 333 slides radially along the internal gear 21 exceeds the tooth height of the third gear 34, the lower gear 331 completely disengages from the third gear 34, and the internal gear 21 enters the second state. In another embodiment, the concave portion of the stroke groove 123 faces the third gear 34, and the value of d is greater than or equal to the tooth height of the first gear 32. Similarly, when the internal gear 21 is in the first state, the third gear 34 meshes with the lower gear 331 and the internal gear 21, and the upper gear 332 meshes with the first gear 32. The rotation of the internal gear 21 drives the third gear 34 and the lower gear 331 to rotate, and the protrusion 333 slides along the stroke groove 123, causing the upper gear 332 to gradually move away from the first gear 32. When the radial distance of the protrusion 333 exceeds the tooth height of the first gear 32, the upper gear 332 disengages from the first gear 32, and the internal gear 21 enters the second state.

[0058] In one implementation, reference Figures 1 to 5When the first housing 11 rotates clockwise relative to the second housing 12, the first transmission structure 2 switches from a first state to a second state, that is, the internal gear 21 switches from a state of transmission connection with the first gear 32 to a state of disconnection. The protrusion 333 moves from the starting end 1231 to the ending end 1232. During this process, the first housing 11 rotates relative to the second housing 12, driving the fan blade 4 to rotate, and then the fan blade 4 enters an idling state. When the first housing 11 rotates counterclockwise relative to the second housing 12, the first transmission structure 2 switches from the second state back to the first state, that is, the internal gear 21 switches from a state of disconnection from the first gear 32 to a state of transmission connection. The protrusion 333 returns from the ending end 1232 to the starting end 1231. During this process, the first housing 11 rotates relative to the second housing 12. Initially, the fan blade 4 does not rotate, but starts rotating after the transmission is reconnected. In this embodiment, the first housing 11 rotates clockwise relative to the second housing 12, driving the lifting component 6 to descend and gradually open the fragrance vent 14. At this time, the fan blades 4 rotate, which the user can immediately observe, and the fragrance is well diffused. The first housing 11 rotates counterclockwise relative to the second housing 12, driving the lifting component 6 to ascend and gradually close the fragrance vent 14. The state where the fan blades 4 do not rotate corresponds to the closing operation of the fragrance vent 14, improving the intuitiveness of the operation and the overall user experience.

[0059] In one implementation, such as Figure 4As shown, a mounting groove 1223 is formed on the side of the frame 122 away from the fragrance area 131. The frame 122 has an upper sidewall 1224 and a lower sidewall 1225 corresponding to the mounting groove 1223, arranged opposite each other along the height direction of the fragrance dispenser. The second gear 33 is located within the mounting groove 1223, and protrusions 333 are provided at both ends along the height direction of the fragrance dispenser. The upper sidewall 1224 and lower sidewall 1225 are respectively provided with stroke grooves 123, with the two protrusions 333 corresponding one-to-one with the two stroke grooves 123. Specifically, the frame 122 includes a base frame 1221 and an upper frame 1222. The base frame 1221 is detachably connected to the bottle body 121. The base frame 1221 is disposed within the bottle opening 1211, and a connecting hole 1226 is provided on the base frame 1221 for connecting the fragrance chamber and the fragrance dispensing port 14. The base frame 1221 is rotatably connected to the first housing 11. The upper frame 1222 is located on the side of the base frame 1221 away from the fragrance area 131. The upper frame 1222 is situated in the middle area of ​​the bottle mouth 1211 and forms a mounting groove 1223 with the base frame 1221, having an upper sidewall 1224 and a lower sidewall 1225. The upper sidewall 1224 and lower sidewall 1225 are positioned opposite each other along the height direction of the fragrance diffuser. The first gear 32, the second gear 33, and the third gear 34 are all accommodated within the mounting groove 1223. The upper sidewall 1224 and lower sidewall 1225 are each provided with a stroke groove 123, which are positioned opposite each other along the height direction of the fragrance diffuser and are identical in shape and size. The side of the upper gear 332 away from the lower gear, and the side of the lower gear 331 away from the upper gear 332, both have protrusions 333. The two protrusions 333 correspond one-to-one with the two stroke grooves 123, ensuring the stability of the second gear 33 during sliding and preventing structural instability. Similarly, the third gear 34 is also provided with a protrusion, and the upper sidewall 1224 and lower sidewall 1225 are provided with holes that mate with the protrusion. The protrusion is engaged in the holes, allowing the third gear 34 to rotate relative to the frame 122 while restricting its vertical and horizontal movement. The first gear 32 is connected to the fan blade 4 via a shaft 31. The first gear 32 is located in the mounting groove 1223, and the fan blade 4 is located outside the mounting groove 1223. The upper sidewall 1224 is provided with an opening, through which the shaft 31 passes and is fixedly connected to the fan blade 4.

[0060] To further improve transmission efficiency, the incense diffuser also includes a bearing 5. The second housing 12 has a bearing fixing position 1227, and the outer ring 51 of the bearing 5 is fixedly connected to the bearing fixing position 1227. The inner ring 52 of the bearing 5 is fitted onto the shaft 31 and fixedly connected to it. Specifically, the bearing fixing position 1227 is the aforementioned opening, the outer ring 51 of the bearing 5 is fixed at the opening, and the inner ring 52 of the bearing 5 is fitted onto the outer wall of the shaft 31 and rotates together with the shaft 31. Rolling elements are provided between the inner ring 52 and the outer ring 51 of the bearing 5. By setting the bearing 5, the rotational resistance of the shaft 31 can be significantly reduced, and the rotational efficiency of the fan blade 4 can be improved. Since the upper gear 332 meshes with the first gear 32, and the first gear 32 is located at the bottom end of the shaft 31, the upper gear 332 needs to be spaced apart from the shaft 31 to prevent friction between the upper gear 332 and the shaft 31 from affecting the rotation of the shaft 31.

[0061] In one implementation, reference Figure 3 and Figure 4 The fan blade 4 includes a hub 41 and blades 42 connected to each other. A counterweight 7 is provided on the hub 41. Specifically, a groove (not shown) is provided on the side of the hub 41 facing away from the second transmission structure 3, and the counterweight 7 is disposed within the groove. The placement of the counterweight 7 on, for example, the side of the hub 41 facing away from the second transmission structure 3 helps to increase the volume and weight of the counterweight 7, thereby increasing the rotational inertia of the fan blade 14. For example, a groove is provided on the side of the hub 41 facing away from the shaft 31, and multiple counterweights 7 are disposed within the groove. Each counterweight 7 matches the size of the hub 41, and the multiple counterweights 7 are stacked sequentially along the height direction of the hub 41. When the first transmission structure 2 switches from the first state to the second state, the fan blade 4 achieves idling under inertia. The counterweight 7 can increase the rotational inertia, thereby extending the idling time and number of revolutions. The greater the weight of the counterweight 7, the longer the idling time of the fan blade 4.

[0062] The above description is merely a preferred embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A fragrance diffuser, characterized in that, include: The outer shell includes a first shell and a second shell rotatably connected to each other, the first shell and the second shell being connected to form a receiving cavity, the receiving cavity including a fragrance area and an airflow channel, the fragrance area being used to contain fragrance; the outer shell is provided with a fragrance dispersing vent, the airflow channel connecting the fragrance area and the fragrance dispersing vent; Fan blades are located within the airflow channel; A first transmission structure is disposed on the first housing; A second transmission structure is connected to the fan blades; the first transmission structure and the second transmission structure are located within the receiving cavity; The first transmission structure has a first state in which it is connected to the second transmission structure, and a second state in which it is disconnected from the second transmission structure. When the first transmission structure is in the first state, the first housing rotates relative to the second housing, and the fan blade rotates through the transmission cooperation of the first transmission structure and the second transmission structure. The first transmission structure and the second transmission structure gradually move away from each other until the first transmission structure is in the second state, at which point the fan blade rotates under inertia.

2. The fragrance diffuser according to claim 1, characterized in that, The first transmission structure includes an internal gear portion disposed on the first housing; the second transmission structure includes a shaft and a first gear connected to each other, the shaft being connected to the fan blade, and the first gear being drivenly connected to the internal gear portion.

3. The fragrance diffuser according to claim 2, characterized in that, The second transmission structure further includes a second gear. In the first state, the second gear meshes with the first gear and is connected to the internal gear portion. The second housing is provided with a stroke groove, and the second gear is provided with a protrusion. The protrusion is connected to the stroke groove and can slide within the stroke groove. The stroke groove has a starting end and an ending end. The process of the protrusion sliding from the starting end to the ending end triggers the first transmission structure to switch from the first state to the second state.

4. The fragrance diffuser according to claim 3, characterized in that, The second gear includes an upper gear and a lower gear connected to each other. The upper gear and the lower gear are coaxially arranged. The upper gear meshes with the first gear. The lower gear is connected to the internal gear. The number of teeth on the upper gear is greater than the number of teeth on the lower gear.

5. The fragrance diffuser according to claim 3, characterized in that, The second transmission structure further includes a third gear, which is rotatably mounted on the second housing; the third gear meshes with the internal gear portion and the second gear respectively.

6. The fragrance diffuser according to claim 5, characterized in that, The travel groove is arc-shaped; the concave part of the travel groove faces the third gear, and the center of the travel groove coincides with the center of the third gear; or, the concave part of the travel groove faces the first gear, and the center of the travel groove coincides with the center of the first gear.

7. The fragrance diffuser according to claim 3, characterized in that, The second housing includes a detachably connected bottle and a frame. The bottle contains a fragrance zone and has an opening that communicates with the fragrance zone. The frame is located at the opening and is rotatably connected to the first housing. A mounting groove is formed on the side of the frame away from the fragrance zone. The frame has an upper sidewall and a lower sidewall that are oppositely arranged along the height direction of the fragrance diffuser, corresponding to the mounting groove. The second gear is located within the mounting groove, and protrusions are provided at both ends of the second gear along the height direction of the fragrance diffuser. The upper and lower sidewalls are respectively provided with travel grooves, and the two protrusions correspond one-to-one with the two travel grooves.

8. The fragrance diffuser according to claim 2, characterized in that, It also includes a bearing, the second housing has a bearing fixing position, the outer ring of the bearing is fixedly connected to the bearing fixing position; the inner ring of the bearing is sleeved on the shaft and fixedly connected to the shaft.

9. The fragrance diffuser according to claim 1, characterized in that, The fan blades include a hub and blades connected to each other, and a counterweight is provided on the hub.

10. The fragrance diffuser according to claim 9, characterized in that, The wheel hub has a groove on the side opposite to the second transmission structure, and the counterweight is located in the groove.

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