Aromatherapy device

Abstract

An aromatherapy device, comprising a container bottle and a power-taking head that forms a detachable connection with the container bottle. A heating rod is arranged between the power-taking head and the container bottle. The power-taking head is used to connect to an external socket and supply power to the heating rod. It also includes a concentration adjustment mechanism and an adjustment bottle. The adjustment bottle is filled with a high-concentration aromatic agent or a diluent. One end of the concentration adjustment mechanism is connected to the container bottle, and the other end is connected to the adjustment bottle to transfer the solution in the adjustment bottle into the container bottle. The beneficial effect of the present invention is that by providing a detachable concentration adjustment mechanism and an adjustment bottle, flexible adjustment of the concentration of the aromatic agent is achieved, and the user can adjust the volatilization concentration in real time according to requirements.

Description

Technical Field

[0001] The present invention relates to a heating and volatilizing device, and in particular to an aromatherapy device. Background Art

[0002] As a common environmental adjustment device, the plug-in aromatherapy device is widely used in scenarios such as homes, hotels, office places, and public restrooms. It releases the fragrance into the air through volatilization or heating diffusion to improve the environmental smell. In the prior art, such devices usually consist of a container bottle, a heating element or an atomization module, and a power supply structure. The usage process mainly includes inserting the container bottle pre-filled with the fragrance solution into the device base, and after power-on, the fragrance is converted into gas or mist particles and diffused into the space through temperature control or ultrasonic oscillation. Some products are equipped with a timing function or adjustable fragrance release intensity levels, but the core fragrance solution mainly relies on a fixed-concentration formula pre-prepared at the factory. Users can only indirectly affect the fragrance performance by replacing different fragrance-type bottles or adjusting the device working mode.

[0003] However, the existing plug-in aromatherapy devices have significant limitations, especially in the lack of fragrance concentration adjustment. Since the solution in the container bottle has been fixed in concentration at the factory, users cannot dynamically adjust the solution concentration according to the actual space size, environmental temperature and humidity changes, or personal sensory preferences. When users need to reduce or increase the fragrance concentration, they can only achieve it by frequently replacing bottles with different formulas, which not only increases the usage cost but also causes resource waste. In addition, the fixed-concentration design limits the adaptability of the device to diverse usage scenarios. For example, in a small space, it is easy to cause a strong and irritating smell, while in a large space, the diffusion effect may be weak due to insufficient concentration. This rigid product characteristic conflicts with the user's demand for personalized environmental adjustment, and there is an urgent need for technical improvement to achieve autonomous control of the fragrance concentration. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the present invention provides an aromatherapy device capable of adjusting the concentration of the solution in the container bottle after leaving the factory.

[0005] To achieve the above object, the technical solution of the present invention is as follows: An aromatherapy device includes a container bottle and a power-taking head detachably connected to the container bottle. A heating rod is provided between the power-taking head and the container bottle. The power-taking head is used to connect to an external socket and supply power to the heating rod. It also includes a concentration adjustment mechanism and an adjustment bottle. The adjustment bottle is filled with a high-concentration fragrance or a diluent. One end of the concentration adjustment mechanism is connected to the container bottle, and the other end is connected to the adjustment bottle to transfer the solution in the adjustment bottle into the container bottle.

[0006] The beneficial effects of the present invention are as follows: By providing a detachable concentration adjustment mechanism and an adjustment bottle, flexible adjustment of the fragrance concentration is achieved. Users can adjust the volatilization concentration in real time according to their needs. The adjustment bottle can store liquids with different properties (such as high-concentration stock solution or dilution solvent), and gradient control of the solution concentration in the container bottle is realized through mechanical transfer. This structure breaks through the limitation of the fixed concentration of traditional aromatizers and does not require frequent replacement of the container bottle body. As a preferred method, the concentration adjustment mechanism can adopt a mixing tube made of elastic material in cooperation with a pressure difference driving device. When the mixing tube is compressed, a negative pressure is formed inside to suck the liquid in the adjustment bottle, and when released, a positive pressure pushes the liquid into the container bottle. The whole process realizes liquid transfer through physical pressure changes, without a complex pump structure, which not only reduces energy consumption but also improves the reliability of the system.

[0007] Further, the concentration adjustment mechanism includes a telescopic and twisting device and a mixing tube. The two ends of the mixing tube are respectively used to connect the container bottle and the adjustment bottle, and the telescopic and twisting device is used to cause a pressure change inside the mixing tube so as to transport the solution in the adjustment bottle into the container bottle.

[0008] This technical solution generates a pressure difference by changing the internal volume of the mixing tube to achieve directional liquid transportation. The telescopic action changes the axial length of the tube body, and the twisting action changes the radial curvature of the tube body. The combined action of the two deformations can significantly increase the amplitude of the pressure change. As a preferred method, the mixing tube can adopt a corrugated tube structure, and spiral reinforcing ribs are arranged on its surface. When axially compressed, the pitch of the corrugated tube shortens, and at the same time, the spiral ribs guide the tube body to generate circumferential torsion, thereby enhancing the liquid transportation efficiency. This structure maximizes the pressure difference in a limited space and does not require an independent pump body.

[0009] Further, the bottom of the container bottle is connected to the concentration adjustment mechanism by a threaded connection, and a liquid inlet check valve is arranged at the bottom of the container bottle.

[0010] This connection method not only ensures the sealing performance but also facilitates disassembly, installation and maintenance. The liquid inlet check valve forms a one-way flow path to prevent the solution in the container bottle from flowing back. As a preferred method, the liquid inlet check valve can adopt a conical valve core structure, and its opening pressure is set by the spring pre-tightening force. When the conveying pressure of the adjustment mechanism exceeds the sum of the spring pre-tightening force and the static pressure of the liquid column, the valve opens. This combined design ensures the sealing performance during normal operation.

[0011] Further, the liquid inlet check valve is arranged at the bottom of the container bottle, and a stirring wheel is rotatably arranged inside the container bottle. The center of the stirring wheel coincides with the center of the liquid inlet check valve.

[0012] The valve body is separately arranged to form a fluid counter - impact effect, which cooperates with the stirring wheel to achieve automatic mixing. As a preferred method, the stirring wheel can adopt a turbine - type blade structure, and magnetic suspension bearings are arranged at both ends of its rotating shaft. When the liquid passes in and out through the one - way valve, the jet flow impacts a specific curved surface of the blade, forming a rotational torque. The flow - guiding grooves arranged on the surface of the turbine blade can enhance the conversion efficiency of fluid kinetic energy, ensuring the rapid and uniform mixing of the newly added liquid and the original solution. As another preferred method, the sealing column of the liquid inlet one - way valve and the stirring shaft of the stirring wheel are the same component, both being a rotating column. A fixing sleeve for inserting the rotating column is arranged inside the container bottle. A step for placing a return spring is arranged on the rotating column. The return spring is placed inside the fixing sleeve and is used to reset the rotating column to prevent the solution in the container bottle from leaking. A spiral track is arranged on the fixing sleeve, and a pin inserted into the spiral track is arranged on the rotating column. Therefore, when the rotating column moves up and down due to pressure conduction, it will also rotate inside the fixing sleeve, thereby driving the stirring wheel to rotate.

[0013] Furthermore, the mixing tube is made of an elastic material. The telescopic and twisting device includes a telescopic sleeve, a twisting sleeve, a driving motor, and a transmission component. The telescopic sleeve and the twisting sleeve are respectively fixed at both ends of the mixing tube. The driving motor drives the telescopic sleeve to move back and forth through the transmission component, and the driving motor drives the twisting sleeve to rotate through the transmission component.

[0014] The cooperation between the elastic mixing tube and the mechanical driving component realizes precise deformation control. As a preferred method, the telescopic sleeve can be designed as a sleeve with internal threads, which cooperates with a guiding screw fixed at the end of the mixing tube. The driving motor drives the linear motion of the telescopic sleeve and the rotational motion of the twisting sleeve through a worm - gear mechanism. Among them, the pitch diameter of the worm and the lead of the screw are designed according to a specific ratio to ensure the precise matching of the axial displacement and the angular displacement. This structure realizes the coupled output of two motion modes through a single power source, improving the system coordination.

[0015] Furthermore, the transmission component includes a driving gear connected to the output end of the driving motor, a driven gear meshing with the driving gear, and a reciprocating rack driven by the driven gear to reciprocate. The reciprocating rack is fixed to the telescopic sleeve to synchronously drive the telescopic sleeve to move back and forth.

[0016] This transmission system realizes the stable conversion of rotational motion into linear motion. As a preferred method, the driven gear adopts a non - complete gear form. When the driven gear rotates, its effective tooth section periodically meshes with the rack, and an arc - shaped guiding surface is arranged on the ineffective tooth section to ensure a smooth transition when the rack changes direction.

[0017] Further, a rotating column is provided on the passive gear and rotates around the center thereof. A moving groove perpendicular to the moving direction of the reciprocating rack is provided on the reciprocating rack. The rotating column is arranged in the moving groove. The transmission assembly further includes a limiting tooth, and the limiting tooth is always engaged with the reciprocating rack during the forward and backward movement of the reciprocating rack.

[0018] This structure realizes precise control of the motion trajectory. As a preferred method, the moving groove can be designed as an eight-shaped double-track structure, and a double-roller assembly is arranged at the end of the rotating column. The limiting tooth adopts an involute modified tooth profile to ensure continuous meshing. When the passive gear rotates, the rotating column moves along the moving groove, and its motion trajectory is decomposed into an axial component and a radial component. The radial degree of freedom is restricted by the limiting tooth to ensure the pure linear motion of the rack.

[0019] Further, the transmission assembly further includes a transmission gear coaxially rotating with the limiting tooth, and the transmission gear meshes with the corresponding end face of the screwing sleeve to drive the screwing sleeve to rotate.

[0020] This design realizes power splitting and synchronous control. As a preferred method, the transmission gear can be designed as an end face bevel gear and meshes with the annular tooth ring at the end of the screwing sleeve. The limiting tooth shaft is connected to the transmission gear through a spline to ensure the reliability of torque transmission. The module selection of the bevel gear pair should satisfy the balance of axial thrust and rotational torque to maintain smooth operation.

[0021] Further, the transmission assembly further includes a limiting sleeve fitted on the screwing sleeve with a clearance. A moving guide rail is fixed on the limiting sleeve, and the other end of the moving guide rail is slidably arranged on the telescopic sleeve.

[0022] This structure improves the stability of the motion system. As a preferred method, the moving guide rail can adopt a double-V roller guiding structure, and a hardened guide rail groove is arranged on the inner wall of the telescopic sleeve. A polyurethane buffer pad is arranged between the limiting sleeve and the screwing sleeve to absorb axial deviation. The guide rail system is provided with an automatic lubrication structure, and an oil-impregnated bronze bushing is embedded in the guide rail groove to ensure a low friction coefficient during long-term use.

[0023] Further, the concentration adjustment mechanism further includes an aperture adjustment device for connecting with an adjustment bottle. The aperture adjustment device includes a rotating disk and a plurality of locking blocks slidably arranged on the rotating disk. Threaded lines are arranged on the inner side walls of the plurality of locking blocks, and the inner side walls of the locking blocks together form a virtual circle with the center located at the center of the rotating disk. A sliding groove is arranged on the side of the rotating disk facing the locking blocks, and the rotating disk and the locking blocks are meshed through the threaded lines to drive the locking blocks to move in the sliding groove when the rotating disk rotates.

[0024] A straw that is sealed and inserted into the mixing tube is also provided on this side. The straw is used to be inserted into the liquid surface of the adjustment bottle after the aperture adjustment device is connected to the adjustment bottle. The beneficial effect of this technical solution is that through the cooperation of the rotating disk and the locking block, the aperture size of the adjustment bottle can be accurately adjusted, so as to adapt to the bottle mouths of more adjustment bottles. That is, even if the user wants to use his own fragrance bottle as an adjustment bottle, he can adapt it through the aperture adjustment device. Specifically, when the rotating disk rotates, due to the engagement between the rotating disk and the locking block through the threaded line, the locking block will move radially in the slide groove, so that the diameter of the virtual circle formed by the inner side walls of several locking blocks changes, thereby changing the aperture size connected to the adjustment bottle. This structural design is similar to the working principle of a three-jaw chuck, which can ensure the accuracy and stability of the aperture adjustment and is suitable for scenarios where precise control of solution concentration is required. To prevent the rotating disk from rotating due to accidental contact, the following locking method can be used: the aperture adjustment device also includes a pressing plate, with a ring of annular protrusions arranged circumferentially on the outer side of the rotating disk, and an offset bevel disposed within the ring; a fixing ring with a slot is correspondingly disposed at the connection portion of the pressing plate, and an elastic bevel with a height greater than the slot depth is disposed within the ring. When the aperture needs to be adjusted, the pressing plate is first pressed axially to align the annular protrusion with the slot, and then the rotating disk can be rotated to adjust the aperture; after the adjustment is complete, the pressing plate is released, and the annular protrusion is offset from the slot by the action of the elastic bevel. Since the elastic bevel is higher than the slot depth, the rotation of the rotating disk is restricted. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a disassembly diagram of an embodiment of the present invention;

[0026] Figure 2 This is an internal view of the concentration adjustment mechanism according to an embodiment of the present invention;

[0027] Figure 3 This is a schematic structural diagram of a telescopic twisting device according to an embodiment of the present invention;

[0028] Figure 4 This is a schematic diagram of the transmission assembly structure of the telescopic twisting device according to an embodiment of the present invention;

[0029] Figure 5 This is a disassembled diagram of a transmission assembly according to an embodiment of the present invention;

[0030] Figure 6 This is a disassembled diagram of the aperture adjustment device according to an embodiment of the present invention;

[0031] Figure 7 This is an internal view of a container bottle according to an embodiment of the present invention;

[0032] Figure 8 This is a partial cross-sectional view of the sealing column of an embodiment of the present invention. DETAILED DESCRIPTION

[0033] An aroma diffuser according to an embodiment of the present invention is as Figure 1-8 shown: It includes a container bottle 1, a power plug 2, a heating rod 3, a concentration adjustment mechanism 4 and an adjustment bottle 5. The top of the container bottle 1 is detachably connected to the power plug 2 by a threaded connection method, and a heating rod 3 is arranged between the two. The power plug 2 is provided with a plug-in structure matching an external socket. The bottom of the container bottle 1 is detachably fitted with the concentration adjustment mechanism 4 by a threaded connection method, and a liquid inlet check valve 15 is arranged at the bottom.

[0034] The concentration adjustment mechanism 4 includes a mixing tube 41 and a telescopic twisting device 42. The mixing tube 41 is made of an elastic material. One end of it sucks liquid from the adjustment bottle 5 through a straw 411 which is hermetically connected to it (in order to prevent the solution from flowing back, a liquid outlet check valve (not shown in the figure) for preventing the solution from flowing back into the adjustment bottle 5 can be arranged at the connection between the straw 411 and the mixing tube 41), and the other end is threadedly connected to the container bottle 1. The telescopic twisting device 42 consists of a driving motor 421, a transmission assembly 422 and an actuator. The actuator includes telescopic sleeves 423 and twisting sleeves 424 fixed at both ends of the mixing tube 41. The driving motor 421 drives the telescopic sleeve 423 to move back and forth and the twisting sleeve 424 to rotate through the transmission assembly 422, generating a negative pressure difference by changing the volume and torsional form of the mixing tube 41, so as to suck the solution in the adjustment bottle 5 into the container bottle 1.

[0035] A stirring wheel 16 is arranged at the central position inside the container bottle 1, and the blades of the stirring wheel 16 are radially distributed. When the liquid inlet check valve 15 opens and closes, the generated eddy current will push the stirring wheel 16 to rotate around its axis, so that the newly injected solution is fully mixed with the original solution. Both ends of the rotating shaft 161 of the stirring wheel 16 are rotatably installed on the inner wall of the container bottle 1 through ball bearings (not shown in the figure).

[0036] The transmission assembly 422 includes a driving gear 4221, a driven gear 4222 and a reciprocating rack 4223. The driving gear 4221 is fixedly connected to the output shaft of the driving motor 421. The driven gear 4222 meshes with the driving gear 4221 and drives the rotating column 4224 thereon to make a circular motion. The rotating column 4224 is embedded in the moving groove 4225 of the reciprocating rack 4223, and the moving groove 4225 is perpendicular to the moving direction of the rack. A limiting gear 4226 is always meshed with the reciprocating rack 4223 to ensure that the rack only makes a linear motion. A transmission gear 4227 is coaxially arranged with the limiting gear 4226, and its teeth mesh with the tooth-shaped structure 4241 on the end face of the twisting sleeve 424 for transmission.

[0037] The transmission assembly 422 further includes a limiting sleeve 425 which is in clearance fit with the twisting sleeve 424. A moving guide rail 426 is fixed on the limiting sleeve 425, and the other end of the moving guide rail 426 is slidably arranged on the telescopic sleeve 423.

[0038] The concentration adjustment mechanism 4 is also provided with an aperture adjustment device 43, which includes a rotating disk 431, a locking block 432, and a pressing disk 433. A plurality of locking blocks 432 are annularly arrayed on the rotating disk 431 through a sliding groove 434. A threaded structure 4321 is provided on the inner side of each locking block 432, and the radial position of the locking block 432 can be synchronously adjusted by screwing the rotating disk 431. The pressing disk 433 is provided with a fixing ring 435 with an elastic inclined surface 4351, and a plurality of annular protrusions 4311 are spaced on the outer periphery of the rotating disk 431. When the aperture needs to be adjusted, the pressing disk 433 needs to be axially pressed first to align the annular protrusion 4311 with the slot 4352 of the fixing ring 435. At this time, the rotating disk 431 can rotate freely. After the adjustment is completed, the pressing disk 433 is released, and the restoring force generated by the elastic inclined surface 4351 causes the annular protrusion 4311 to be misaligned and locked with the slot 4352.

[0039] As a preferred mode, the inlet one-way valve 15 includes a sealing column 151, which also serves as the rotating shaft 161 of the stirring wheel 16. A fixing sleeve 17 for inserting the sealing column 151 is arranged in the container bottle 1. A step groove 1512 for placing the return spring 1511 is arranged on the sealing column 151. The return spring 1511 is placed inside the fixing sleeve 17 and is used to drive the sealing column 151 to prevent the solution in the container bottle 1 from leaking. A spiral groove 171 is arranged at the top of the fixing sleeve 17, and an opening 172 for the solution to flow into the container bottle 1 is arranged at the bottom. A pin 1513 inserted into the spiral groove 171 is arranged on the sealing column 151. Therefore, when the sealing column 151 moves up and down due to pressure conduction, it will also rotate along the spiral groove 171 of the fixing sleeve 17, thereby driving the stirring wheel 16 to rotate, so as to better rotate the stirring wheel 16 to make the solution concentration in the container bottle 1 more balanced.

[0040] The above embodiments are only one of the preferred specific embodiments of the present invention, and the general changes and substitutions made by those skilled in the art within the scope of the technical solution of the present invention are included in the protection scope of the present invention.

Claims

1. An aromatherapy device, comprising a container bottle and a power-taking head that forms a detachable connection with the container bottle, a heating rod is arranged between the power-taking head and the container bottle, the power-taking head is used to be connected to an external socket and supply power to the heating rod, and it is characterized in that: It further includes a concentration adjustment mechanism and an adjustment bottle. The adjustment bottle is filled with a high-concentration fragrance or a diluent. One end of the concentration adjustment mechanism is connected to the container bottle, and the other end is connected to the adjustment bottle to transfer the solution in the adjustment bottle into the container bottle. The concentration adjustment mechanism includes a telescopic and twisting device and a mixing tube. The two ends of the mixing tube are respectively used to connect the container bottle and the adjustment bottle. The telescopic and twisting device is used to cause a pressure change inside the mixing tube so as to convey the solution in the adjustment bottle into the container bottle. The mixing tube is made of an elastic material. The telescopic and twisting device includes a telescopic sleeve, a twisting sleeve, a driving motor, and a transmission component. The telescopic sleeve and the twisting sleeve are respectively fixed at the two ends of the mixing tube. The driving motor drives the telescopic sleeve to move back and forth through the transmission component, and the driving motor drives the twisting sleeve to rotate through the transmission component.

2. The aromatherapy device according to claim 1, wherein: The bottom of the container bottle is connected to the concentration adjustment mechanism by a thread, and a liquid inlet check valve is arranged at the bottom of the container bottle.

3. The aromatherapy device according to claim 2, characterized in that: The liquid inlet check valve is arranged at the bottom of the container bottle, and a stirring wheel is rotatably arranged inside the container bottle. The center of the stirring wheel coincides with the center of the liquid inlet check valve.

4. The aromatherapy device according to claim 1, characterized in that: The transmission component includes a driving gear connected to the output end of the driving motor, a driven gear meshing with the driving gear, and a reciprocating rack driven by the driven gear to reciprocate. The reciprocating rack is fixed to the telescopic sleeve to synchronously drive the telescopic sleeve to move back and forth.

5. The aromatherapy device according to claim 4, characterized in that: A rotating column rotating around its center is arranged on the driven gear. A moving groove perpendicular to its moving direction is arranged on the reciprocating rack. The rotating column is arranged in the moving groove. The transmission component further includes a limiting gear, and the limiting gear always meshes with the reciprocating rack during the forward and backward movement of the reciprocating rack.

6. The aromatherapy device according to claim 5, wherein: The transmission component further includes a transmission gear coaxially rotating with the limiting gear, and the transmission gear meshes with the corresponding end face of the twisting sleeve to drive the twisting sleeve to rotate.

7. The aromatherapy device according to claim 5, characterized in that: The transmission component further includes a limiting sleeve fitted in the twisting sleeve with a clearance. A moving guide rail is fixed on the limiting sleeve, and the other end of the moving guide rail is slidably arranged on the telescopic sleeve.

8. The aromatherapy device according to claim 1, wherein: The concentration adjustment mechanism further includes an aperture adjustment device for connecting to the adjustment bottle. The aperture adjustment device includes a rotating disc and a plurality of locking blocks slidably arranged on the rotating disc. Thread lines are arranged on the inner side walls of the plurality of locking blocks, and the inner side walls of the locking blocks together form a virtual circle with the center located at the center of the rotating disc. A sliding groove is arranged on the side of the rotating disc facing the locking blocks. The rotating disc and the locking blocks are meshed through the thread lines to drive the locking blocks to move in the sliding groove when the rotating disc rotates.

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