Essential oil liquid level detection sensing device for fragrance machine

Abstract

The invention belongs to the technical field of fragrance machines, and particularly discloses an essential oil liquid level detection sensing device for a fragrance machine, which comprises a transparent solution bottle for placing essential oil and a plurality of groups of sensing components for detecting the liquid level of the essential oil in the solution bottle, the solution bottle is arranged in a fragrance machine body, the fragrance machine body comprises a bottom frame and a top cover, and the top cover is arranged on the bottom frame. An inner frame is fixed to the bottom face of the top cover and correspondingly inserted into the bottom frame, the top end of the solution bottle is correspondingly inserted into the inner frame, and an annular edge is fixed to the bottom face of the bottom frame. When a solution bottle is pulled out from the bottom of the inner frame, a second spring enables a clamping strip of a movable block to press a chamfer face of an arc-shaped strip through a connecting rod, a pressing frame enables a wedge block to be away from a trapezoidal block through a pressing rod under the pressure effect, at the moment, elastic force of an elastic strip pulls a frame plate to be away from the solution bottle through a protruding strip, and the inner side face of the frame plate does not make contact with the solution bottle; and the solution bottle can be quickly drawn out from the bottom of the inner frame.

Description

Technical Field

[0001] This invention belongs to the field of fragrance diffuser technology, and specifically relates to an essential oil level detection sensor for fragrance diffusers. Background Art

[0002] Aroma diffusers diffuse fragrance into the surrounding environment by atomizing essential oils. They typically consist of a main unit and an atomizing device with an atomizing coil. The atomizing device draws essential oils from a bottle and atomizes them. However, current aroma diffusers require complete disassembly and reassembly to change the essential oil bottle, making the process cumbersome, the structure complex, and the device inconvenient to use.

[0003] Therefore, it is necessary to invent an essential oil level detection sensor for fragrance diffusers to solve the above problems. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides an essential oil level detection sensor for a fragrance diffuser, thereby resolving the issues raised in the background section.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an essential oil level detection sensor for a fragrance diffuser, comprising a transparent solution bottle for holding essential oil, and multiple sets of sensing components for detecting the essential oil level inside the solution bottle. The solution bottle is placed inside the fragrance diffuser body, which includes a bottom frame and a top cover. An inner frame is fixed to the bottom surface of the top cover and is correspondingly inserted into the bottom frame. The top of the solution bottle is correspondingly inserted into the inner frame. A ring edge is fixed to the bottom surface of the bottom frame. A base block for supporting the solution bottle is provided inside the bottom frame. The base block is made of rubber material. An atomizer is built into the top cover, and the bottom surface of the top cover is correspondingly inserted into the solution bottle via a connecting tube. Inside the liquid bottle, and with an exhaust port on the top of the cap, the atomizer draws essential oil from the solution bottle using a connecting tube and discharges the atomized essential oil through the exhaust port. Inside the inner frame, there are two opposing arc-shaped plates with two slots between them. Each slot contains a frame plate. The sensing components include a photoelectric sensor and a laser component. The photoelectric sensors and laser components of the two sets of sensing components are staggered and mounted on the outer convex surfaces of the two frame plates. The frame plates are made of transparent material, and the photoelectric sensors and laser components are correspondingly positioned. The laser beam from the laser component passes through the frame plate and the solution bottle to the photoelectric sensor. The photoelectric sensor and laser component are connected to the control mainboard.

[0006] Furthermore, the solution bottle is inserted between two arc-shaped plates. A convex strip is fixed to the bottom of the outer convex surface of the frame plate. A baffle is provided on the outer side of the convex strip. The bottom of the baffle is fixedly connected to the bottom surface of the inner frame. A convex rod is fixed on the inner side of the baffle plate. A slot corresponding to the convex rod is provided on the outer side of the convex strip. The baffle and the convex strip are connected by an elastic strip. The elasticity of the elastic strip pulls the frame plate away from the solution bottle by the convex strip.

[0007] Furthermore, side plates are provided on the top of both sides of the arc-shaped plate, and a trapezoidal block is connected to the top of the protruding strip by a vertical rod. The trapezoidal block is located between the two side plates. A wedge is provided on the inner side of the side plate, and the two wedges cooperate to clamp the trapezoidal block. A pressure plate is provided on the outer side of the side plate, and a pressure rod that penetrates the side plate is fixed on the inner side of the pressure plate. A first spring is sleeved on the surface of the pressure rod. One end of the first spring is connected to the outer side of the side plate, and the other end of the first spring is connected to the inner side of the pressure plate.

[0008] Furthermore, the trapezoidal block has inclined surfaces on both sides, and the inner side of the wedge has a tangent corresponding to the inclined surface. The two wedges that are close to each other use the tangent to squeeze the inclined surface of the trapezoidal block, and the squeezed trapezoidal block uses the protrusion at the bottom of the vertical rod to bring the shelf closer to the solution bottle.

[0009] Furthermore, the two pressure plates on the outer side of the arc-shaped plate are fixedly connected by two arc-shaped strips. The two pressure plates and the two arc-shaped strips cooperate to form a pressure frame, and the top of the concave surface of the bottom arc-shaped strip is provided with a chamfered surface.

[0010] Furthermore, a movable block is provided on the inner side of the pressure frame. The concave surface of the arc strip is in contact with the outer surface of the movable block, and the concave surface of the movable block is in contact with the convex surface of the arc plate. A retaining strip is fixed on the convex surface of the movable block. The retaining strip is located between the two arc strips, and the bottom of the retaining strip is inclined and corresponds to the chamfered surface.

[0011] Furthermore, the bottom surface of the movable block is connected to a base plate by a connecting rod, and an insert rod that penetrates the base plate is fixed to the bottom surface of the inner side of the inner frame. A second spring is sleeved on the surface of the insert rod, the top end of the insert rod is connected to a circular plate, the top end of the second spring is connected to the bottom surface of the circular plate, and the bottom end of the second spring is connected to the top surface of the base plate.

[0012] Furthermore, a protrusion is provided at the bottom of the outer circumference of the solution bottle, and a support rod that penetrates the bottom of the inner frame is fixed on the top surface of the protrusion, with the top surface of the support rod fitting against the bottom surface of the base plate.

[0013] The technical effects and advantages of the present invention are as follows:

[0014] 1. In this invention, when the solution bottle is pulled out from the bottom of the inner frame, the second spring uses the connecting rod to cause the locking strip of the movable block to press the chamfered surface of the arc strip. Under the pressure, the pressure frame uses the pressure rod to make the wedge block move away from the trapezoidal block. At this time, the elastic force of the elastic strip uses the convex strip to pull the frame plate away from the solution bottle. The inner side of the frame plate does not contact the solution bottle, which can quickly pull the solution bottle out from the bottom of the inner frame.

[0015] 2. In this invention, during the process of inserting the top of the solution bottle into the inner frame, the support rod causes the connecting rod to move the movable block and the locking strip upward. The locking strip moves upward between the two arc-shaped strips, and the elastic force of the second spring uses the connecting rod inside the pressure plate to cause the wedge to squeeze the trapezoidal block. The squeezing of the wedge causes the trapezoidal block to use the vertical rod to drive the frame plate closer to the solution bottle. At this time, the two opposing frame plates cooperate to clamp the solution bottle, ensuring the clamping stability of the solution bottle inside the inner frame.

[0016] 3. In this invention, the solution bottle is confined by the damping strip on the concave surface of the arc plate. After the solution bottle is inserted into the inner frame, both arc plates use damping strips to confine the solution bottle, preventing the solution bottle from sliding out from the bottom of the inner frame. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall fragrance diffuser according to an embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the bottom frame of the fragrance diffuser according to an embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of the inner frame connecting the top cover of the fragrance diffuser according to an embodiment of the present invention;

[0020] Figure 4 This is a schematic diagram of the internal components of the inner frame in an embodiment of the present invention;

[0021] Figure 5 This is a schematic diagram showing the correspondence between the protrusions on the outer side of the frame plate and the baffle in an embodiment of the present invention;

[0022] Figure 6 This is a schematic diagram of a solution bottle according to an embodiment of the present invention;

[0023] In the diagram: 1. Solution bottle; 2. Base frame; 3. Top cap; 4. Inner frame; 5. Ring edge; 6. Base block; 7. Connecting pipe; 8. Exhaust port; 9. Arc plate; 10. Frame plate; 11. Photoelectric sensor; 12. Laser component; 13. Protruding strip; 14. Baffle; 15. Protruding rod; 16. Elastic strip; 17. Side plate; 18. Trapezoidal block; 19. Wedge block; 20. Pressure plate; 21. Pressure rod; 22. First spring; 23. Inclined surface; 24. Cut surface; 25. Arc strip; 26. Chamfered surface; 27. Movable block; 28. Locking strip; 29. ​​Base plate; 30. Insert rod; 31. Second spring; 32. Support rod. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0025] This invention provides an essential oil level detection sensor for a fragrance diffuser, such as... Figures 1 to 5As shown, the device includes a transparent solution bottle 1 for holding essential oils and multiple sets of sensors for detecting the level of essential oils inside the solution bottle 1. The solution bottle 1 is placed inside the aroma diffuser body, which includes a base frame 2 and a top cover 3. An inner frame 4 is fixed to the bottom surface of the top cover 3 and is correspondingly inserted into the bottom frame 2. The top of the solution bottle 1 is correspondingly inserted into the inner frame 4. A ring edge 5 is fixed to the bottom surface of the bottom frame 2. A base block 6 made of rubber is provided inside the bottom frame 2 to support the solution bottle 1. An atomizer is built into the top cover 3. A display screen is provided on the front side of the bottom frame 2, and the display screen is connected to the atomizer signal. The bottom surface of the top cover 3 is correspondingly inserted into the solution bottle 1 via a connecting tube 7, and the top of the top cover 3 is provided with... The device has an exhaust port 8. The atomizer uses a connecting pipe 7 to draw essential oil from the solution bottle 1 and uses the exhaust port 8 to discharge the atomized essential oil. The inner frame 4 has two opposing arc-shaped plates 9, and two slots are provided between the two arc-shaped plates 9. Each slot has a frame plate 10. The sensing components include a photoelectric sensor 11 and a laser component 12. The photoelectric sensor 11 and laser component 12 of the two sets of sensing components are respectively staggered on the outer convex surface of the two frame plates 10. The frame plates 10 are made of transparent material, and the photoelectric sensor 11 and laser component 12 are arranged correspondingly. The laser of the laser component 12 passes through the frame plate 10 and the solution bottle 1 to the photoelectric sensor 11. The photoelectric sensor 11 and the laser component 12 are connected to the control main board. Since the photoelectric sensors 11 and laser components 12 of the two sets of sensing components are respectively staggered on the outer convex surfaces of the two mounting plates 10, the laser component 12 at the top of the outer convex surface of the mounting plate 10 transmits laser light through the transparent mounting plate 10 and the solution bottle 1 to the photoelectric sensor 11. The two sets of sensing components are used to detect the essential oil level inside the solution bottle 1, avoiding inaccurate detection of the essential oil level due to tilting. For example, when the essential oil level inside the solution bottle 1 changes, the laser light path of the laser component 12 will be deflected because its refractive index in liquid is generally greater than its refractive index in air, resulting in a displacement of the light spot. This displacement is then transmitted to the photoelectric sensor 11, where the photodiode is located, to generate an electrical signal, thereby achieving the purpose of monitoring the essential oil level.

[0026] Among them, the concave surface of the arc plate 9 is equipped with a damping strip to limit the solution bottle 1. After the solution bottle 1 is inserted into the inner frame 4, both arc plates 9 use the damping strip to limit the solution bottle 1, so as to prevent the solution bottle 1 from sliding out from the bottom of the inner frame 4.

[0027] The top of the solution bottle 1 is inserted into the inner frame 4. At this time, the connecting tube 7 at the bottom of the top cover 3 is inserted into the solution bottle 1. The atomizer is started by the control button on the display screen. The atomizer uses the connecting tube 7 to draw essential oil from the solution bottle 1. The atomizer then atomizes the extracted essential oil and discharges the atomized essential oil through the exhaust port 8, making it convenient for the fragrance diffuser to apply fragrance to the surrounding area.

[0028] exist Figure 4 and Figure 5 In this configuration, the solution bottle 1 is inserted between two arc-shaped plates 9. A convex strip 13 is fixed to the bottom of the outer convex surface of the support plate 10. A baffle 14 is provided on the outer side of the convex strip 13, and the bottom of the baffle 14 is fixedly connected to the inner bottom surface of the inner frame 4. A protruding rod 15 is fixed to the inner side of the baffle 14. A slot corresponding to the protruding rod 15 is provided on the outer side of the convex strip 13. The baffle 14 and the convex strip 13 are connected by an elastic strip 16. The elastic force of the elastic strip 16 pulls the support plate 10 away from the solution bottle 1 through the convex strip 13. Because the elastic force of the elastic strip 16 pulls the support plate 10 to move inside the slot, the moving convex strip 13 slides on the surface of the protruding rod 15 through the slot, and the moving support plate 10 moves away from the solution bottle 1. The inner side of the support plate 10 does not contact the solution bottle 1, making it convenient to insert the solution bottle 1 into the inner frame 4 or to pull the solution bottle 1 out from the bottom of the inner frame 4.

[0029] exist Figure 4 and Figure 5 In this structure, side plates 17 are provided on the top of both sides of the arc-shaped plate 9. A trapezoidal block 18 is connected to the top of the protrusion 13 by a vertical rod. The trapezoidal block 18 is located between the two side plates 17. A wedge 19 is provided on the inner side of the side plate 17. The two wedges 19 cooperate to clamp the trapezoidal block 18. A pressure plate 20 is provided on the outer side of the side plate 17. A pressure rod 21 that penetrates the side plate 17 is fixed on the inner side of the pressure plate 20. A first spring 22 is sleeved on the surface of the pressure rod 21. One end of the first spring 22 is connected to the outer side of the side plate 17, and the other end of the first spring 22 is connected to the inner side of the pressure plate 20. Both sides of the trapezoidal block 18 are provided with inclined surfaces 23. The inner side of the wedge 19 is provided with a cut surface 24 corresponding to the inclined surface 23. The two wedges 19 that are close to each other use the cut surface 24 to press the inclined surface 23 of the trapezoidal block 18. The compressed trapezoidal block 18 brings the support plate 10 closer to the solution bottle 1 through the protrusion 13 at the bottom of the vertical rod. After the solution bottle 1 is inserted into the inner frame 4, the elastic force of the first spring 22 pulls the pressure plate 20 closer to the side plate 17. The moving pressure plate 20 uses the pressure rod 21 to drive the wedge 19 closer to the trapezoidal block 18. At this time, the two wedges 19 inside the slot approach each other. The moving wedge 19 uses the cut surface 24 to squeeze the inclined surface 23 of the trapezoidal block 18. The trapezoidal block 18 moves under the squeeze, that is, the cut surface 24 of the wedge 19 slides on the inclined surface 23 of the trapezoidal block 18. The moving trapezoidal block 18 gradually approaches the solution bottle 1. The moving trapezoidal block 18 uses the vertical rod to pull the bracket plate 10 on the inner side of the protrusion 13 closer to the solution bottle 1. The moving protrusion 13 cooperates to pull the elastic strip 16. At this time, the two opposing bracket plates 10 cooperate to clamp the solution bottle 1, completing the clamping stability of the solution bottle 1 inside the inner frame 4.

[0030] exist Figure 4In the design, two pressure plates 20 on the outer side of the arc-shaped plate 9 are fixedly connected by two arc-shaped strips 25. The two pressure plates 20 and the two arc-shaped strips 25 cooperate to form a pressure frame. The top of the concave surface of the bottom arc-shaped strip 25 is provided with a chamfered surface 26. A movable block 27 is provided on the inner side of the pressure frame. The concave surface of the arc-shaped strip 25 is in contact with the outer surface of the movable block 27, and the concave surface of the movable block 27 is in contact with the convex surface of the arc-shaped plate 9. A retaining strip 28 is fixed on the convex surface of the movable block 27. The retaining strip 28 is located between the two arc-shaped strips 25, and the bottom of the retaining strip 28 is inclined and corresponds to the chamfered surface 26. As the movable block 27 moves downward, it causes the retaining strip 28 to move downward synchronously until the bottom of the retaining strip 28 contacts the chamfered surface 26 of the arc-shaped strip 25. The movable block 27 continues to move downward, using the retaining strip 28 to slide on the chamfered surface 26. The downward pressure of the retaining strip 28 on the arc-shaped strip 25 causes the pressure frame to move away from the arc-shaped plate 9. At this time, the pressure frame causes the pressure plate 20 to move away from the side plate 17. The pressure plate 20 pulls the first spring 22, and the pressure plate 20 uses the pressure rod 21 to pull the wedge block 1. 9. Move away from trapezoidal block 18. At this time, the pressure of wedge block 19 on trapezoidal block 18 disappears. The elastic force of elastic strip 16 uses convex strip 13 and vertical rod to pull trapezoidal block 18 away from solution bottle 1. The elastic strip 16 makes the inclined surface 23 of trapezoidal block 18 always fit with the cut surface 24 of wedge block 19. The elastic force of elastic strip 16 uses convex strip 13 to pull the frame plate 10 away from solution bottle 1. At this time, it is convenient to insert solution bottle 1 into the inner frame 4 or to pull solution bottle 1 out from the bottom of inner frame 4.

[0031] When the movable block 27 moves upward, the moving movable block 27 drives the locking strip 28 to move between the two arc-shaped strips 25. The pressure of the locking strip 28 on the arc-shaped strip 25 disappears, and the elastic force of the first spring 22 pulls the pressure frame closer to the arc-shaped plate 9. The elastic force of the first spring 22 makes the pressure plate 20 closer to the side plate 17. The pressure plate 20 uses the pressure rod 21 to pull the wedge block 19 closer to the trapezoidal block 18. The two wedge blocks 19 use the cut surface 24 to make the trapezoidal block 18 closer to the solution bottle 1.

[0032] exist Figures 2 to 4 , Figure 6In the middle, the bottom surface of the movable block 27 is connected to the base plate 29 by a connecting rod. The bottom surface of the inner frame 4 is fixed with an insertion rod 30 that penetrates the base plate 29. A second spring 31 is sleeved on the surface of the insertion rod 30. The top end of the insertion rod 30 is connected to a circular plate. The top end of the second spring 31 is connected to the bottom surface of the circular plate. The bottom end of the second spring 31 is connected to the top surface of the top plate 29. A protrusion is provided on the bottom of the outer circumference of the solution bottle 1. A support rod 32 that penetrates the bottom of the inner frame 4 is fixed on the top surface of the protrusion. The top surface of the support rod 32 is in contact with the bottom surface of the base plate 29. During the process of inserting the top of the solution bottle 1 into the inner frame 4, the protrusion at the bottom of the solution bottle 1 drives the support rod 32 closer to the bottom of the inner frame 4 until the top surface of the protrusion is in contact with the bottom surface of the inner frame 4. At this point, the top of the support rod 32 penetrates the bottom of the inner frame 4, and pushes the bottom plate 29 to the top of the inner side of the inner frame 4. The upward-moving bottom plate 29 presses the second spring 31 on the surface of the insertion rod 30, and the upward-moving bottom plate 29 uses the connecting rod to move the movable block 27 upward. The upward-moving movable block 27 drives the locking strip 28 to move between the two arc-shaped strips 25. When the top of the solution bottle 1 is pulled out from the inner frame 4, the solution bottle 1 uses the protrusion to pull the support rod 32 out from the bottom of the inner frame 4. The supporting force of the support rod 32 on the bottom plate 29 disappears, and the elastic force of the second spring 31 causes the bottom plate 29 to move downward. The downward-moving bottom plate 29 uses the connecting rod to move the movable block 27 to move the locking strip 28 downward. The bottom of the downward-moving locking strip 28 presses the chamfered surface 26 of the arc-shaped strip 25.

[0033] Working principle of this invention:

[0034] Reference Figures 1 to 6 As shown, during the process of inserting the top of the solution bottle 1 into the inner frame 4, the protrusion at the bottom of the solution bottle 1 drives the support rod 32 to approach the bottom of the inner frame 4 until the top surface of the protrusion is in contact with the bottom surface of the inner frame 4. At this point, the top of the support rod 32 penetrates the bottom of the inner frame 4, and the top of the support rod 32 pushes the bottom plate 29 to the top of the inner side of the inner frame 4. The upward-moving bottom plate 29 presses the second spring 31 on the surface of the insertion rod 30, and the upward-moving bottom plate 29 uses the connecting rod to make the movable block 27 move upward. The upward-moving movable block 27 drives the locking strip 28 to move between the two arc-shaped strips 25. When the movable block 27 moves upward, it drives the locking strip 28 to move between the two arc-shaped strips 25. The pressure of the locking strip 28 on the arc-shaped strip 25 disappears, and the elastic force of the first spring 22 pulls the pressure frame closer to the arc-shaped plate 9. The elastic force of the first spring 22 makes the pressure plate 20 closer to the side plate 17. The pressure plate 20 uses the pressure rod 21 to pull the wedge block 19 closer to the trapezoidal block 18. The two wedge blocks 19 use the cut surface 24 to make the trapezoidal block 18 closer to the solution bottle 1. The moving trapezoidal block 18 uses the vertical rod to pull the frame plate 10 on the inner side of the protrusion 13 closer to the solution bottle 1. The moving protrusion 13 cooperates to pull the elastic strip 16. At this time, the two opposing frame plates 10 cooperate to clamp the solution bottle 1, completing the clamping stability of the solution bottle 1 inside the inner frame 4.

[0035] The top cap 3 of the solution bottle 1 is inserted into the inner frame 4 and then into the bottom frame 2. At this point, the bottom surface of the solution bottle 1 contacts the bottom block 6 inside the bottom frame 2, which supports the solution bottle 1. The top of the solution bottle 1 is inserted into the inner frame 4, and the connecting tube 7 at the bottom of the top cap 3 is correspondingly inserted into the solution bottle 1. The atomizer is started via the control button on the display screen. The atomizer draws essential oil from the solution bottle 1 using the connecting tube 7. The atomizer then atomizes the drawn essential oil and discharges it through the exhaust port 8, allowing the aromatherapy device to diffuse fragrance into the surrounding area. The sensor component detects the amount of essential oil inside the solution bottle 1. When the essential oil level reaches the minimum, the aromatherapy device sounds an alarm, prompting the customer to add more essential oil to the solution bottle 1.

[0036] When the top cover 3 is separated from the bottom frame 2, the top of the solution bottle 1 is pulled out from the inside of the inner frame 4. The solution bottle 1 uses the protrusion to pull the support rod 32 out from the bottom of the inner frame 4. The support force of the support rod 32 on the bottom plate 29 disappears. The elastic force of the second spring 31 causes the bottom plate 29 to move down. The moving bottom plate 29 uses the connecting rod to make the movable block 27 drive the locking strip 28 to move down. The bottom of the moving locking strip 28 presses the chamfered surface 26 of the arc strip 25. The moving block 27 continues to slide down on the chamfered surface 26 using the locking strip 28. The downward pressure of the locking strip 28 on the arc strip 25 causes the pressure frame to move away from the arc plate 9. At this time, the pressure frame causes the pressure plate 20 to move away from the side plate 17. The pressure plate 20 pulls the first spring 22, and the pressure plate 20 uses the pressure rod 21 to pull the wedge block 19 away from the trapezoidal block 18. At this time, the pressure of the wedge block 19 on the trapezoidal block 18 disappears. The elastic force of the elastic strip 16 uses the convex strip 13 and the vertical rod to pull the trapezoidal block 18 away from the solution bottle 1. The elastic strip 16 makes the inclined surface 23 of the trapezoidal block 18 always fit with the cut surface 24 of the wedge block 19. The elastic force of the elastic strip 16 uses the convex strip 13 to pull the frame plate 10 away from the solution bottle 1. At this time, it is convenient to pull the solution bottle 1 out from the bottom of the inner frame 4, and it is convenient to add essential oil into the solution bottle 1.

[0037] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it.

Claims

1. A sensor device for detecting the liquid level of essential oils used in a fragrance machine, characterized in that: The invention comprises a transparent solution bottle (1) for placing essential oil, and a plurality of sensing components for detecting the liquid level of the essential oil in the solution bottle (1), wherein the solution bottle (1) is placed inside a main body of the aroma diffuser, and the main body of the aroma diffuser comprises a bottom frame (2) and a top cover (3), an inner frame (4) is fixed to the bottom surface of the top cover (3), and the inner frame (4) is correspondingly plugged into the bottom frame (2), the top end of the solution bottle (1) is correspondingly plugged into the inner frame (4), a ring edge (5) is fixed to the bottom surface of the bottom frame (2), a bottom block (6) for supporting the solution bottle (1) is arranged inside the bottom frame (2), and the bottom block (6) is made of rubber material, an atomizer is built inside the top cover (3), the bottom surface of the top cover (3) is correspondingly plugged into the inside of the solution bottle (1) by means of a connecting pipe (7), and an exhaust port (8) is arranged on the top of the top cover (3), and the atomizer is connected to the solution bottle (1) by means of a connecting pipe (7). The pipe (7) extracts the essential oil in the solution bottle (1), and discharges the atomized essential oil through the exhaust port (8). Two opposing arc plates (9) are arranged inside the inner frame (4). Two empty slots are arranged between the two arc plates (9). A frame plate (10) is arranged inside the two empty slots. The sensing components include photoelectric sensors (11) and laser components (12). The photoelectric sensors (11) and laser components (12) of the two groups of sensing components are staggeredly installed on the outer convex surfaces of the two frame plates (10). The frame plates (10) are made of transparent materials, and the photoelectric sensors (11) and the laser components (12) are arranged correspondingly. The laser of the laser component (12) passes through the frame plate (10) and the solution bottle (1) to the photoelectric sensor (11). The photoelectric sensor (11) and the laser component (12) are connected to the control main board.

2. The essential oil level detection sensor device for a fragrance machine according to claim 1, characterized in that: The solution bottle (1) is correspondingly inserted between the two arc-shaped plates (9); a convex strip (13) is fixed to the bottom of the outer convex surface of the frame plate (10); a baffle (14) is arranged on the outer side of the convex strip (13); the bottom of the baffle (14) is fixedly connected to the inner bottom surface of the inner frame (4); a convex rod (15) is fixed to the inner side surface of the baffle (14); a slot corresponding to the convex rod (15) is arranged on the outer side of the convex strip (13); the baffle (14) and the convex strip (13) are connected by an elastic strip (16); the elastic force of the elastic strip (16) utilizes the convex strip (13) to pull the frame plate (10) away from the solution bottle (1).

3. The essential oil level detection sensor device for a fragrance machine according to claim 2, characterized in that: The top of both sides of the arc-shaped plate (9) is provided with a side plate (17), the top of the convex strip (13) is connected with a trapezoidal block (18) by means of a vertical rod, the trapezoidal block (18) is located between the two side plates (17), the inner side of the side plate (17) is provided with a wedge block (19), the two wedge blocks (19) cooperate to clamp the trapezoidal block (18), the outer side of the side plate (17) is provided with a pressure plate (20), the inner side of the pressure plate (20) is fixed with a pressure rod (21) penetrating the side plate (17), the surface of the pressure rod (21) is sleeved with a first spring (22), one end of the first spring (22) is connected to the outer side of the side plate (17), and the other end of the first spring (22) is connected to the inner side of the pressure plate (20).

4. The essential oil level detection sensor device for a fragrance machine according to claim 3, characterized in that: Both sides of the trapezoidal block (18) are provided with inclined surfaces (23), and the inner side surface of the wedge block (19) is provided with a cut surface (24) corresponding to the inclined surface (23). The two wedge blocks (19) close to each other use the cut surface (24) to squeeze the inclined surface (23) of the trapezoidal block (18), and the squeezed trapezoidal block (18) makes the shelf (10) close to the solution bottle (1) through the convex strip (13) at the bottom end of the vertical rod.

5. The essential oil level detection sensor device for a fragrance machine according to claim 3, characterized in that: The two pressing plates (20) on the outer side of the arc-shaped plate (9) are fixedly connected by two arc-shaped strips (25), and the two pressing plates (20) cooperate with the two arc-shaped strips (25) to form a pressing frame, and a chamfered surface (26) is provided on the top of the inner concave surface of the arc-shaped strip (25) at the bottom.

6. The essential oil level detection sensor device for a fragrance machine according to claim 5, characterized in that: A movable block (27) is arranged on the inner side of the press frame, the inner concave surface of the arc strip (25) is fitted with the outer side surface of the movable block (27), the inner concave surface of the movable block (27) is fitted with the outer convex surface of the arc plate (9), a clamping strip (28) is fixed to the outer convex surface of the movable block (27), the clamping strip (28) is located between the two arc strips (25), and the bottom of the clamping strip (28) is inclined, and the bottom of the clamping strip (28) corresponds to the chamfered surface (26).

7. The essential oil level detection sensor device for a fragrance machine according to claim 6, characterized in that: The bottom surface of the movable block (27) is connected to a bottom plate (29) by means of a connecting rod, an insertion rod (30) penetrating the bottom plate (29) is fixed to the inner bottom surface of the inner frame (4), a second spring (31) is sleeved on the surface of the insertion rod (30), the top end of the insertion rod (30) is connected to a circular plate, the top end of the second spring (31) is connected to the bottom surface of the circular plate, and the bottom end of the second spring (31) is connected to the top surface of the bottom plate (29).

8. The essential oil level detection sensor device for a fragrance machine according to claim 7, characterized in that: A convex block is provided at the bottom of the circumferential outer side surface of the solution bottle (1), a support rod (32) penetrating the bottom of the inner frame (4) is fixed to the top surface of the convex block, and the top surface of the support rod (32) is in contact with the bottom surface of the bottom plate (29).

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