Smell absorbing device installed on dental diagnosis and treatment chair and use method

By designing an olfactory device on the dental chair with an air supply mechanism directly connected to a nasal mask, and using a motor-piston drive and atomization components, the problem of unstable aromatherapy intervention was solved, achieving continuous and directional nasal olfactory stimulation and relieving patients' anxiety.

CN120938765AInactive Publication Date: 2025-11-14STOMATOLOGY HOSPITAL OF HEBEI MEDICAL UNIV
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Patent Information

Application Number
CN202511483896.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-10-17
Publication Date
2025-11-14
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

In current dental treatments, aromatherapy interventions cannot be sustained or targeted, making it difficult to alleviate patients' anxiety. Furthermore, the concentration of essential oil molecules is easily affected by airflow in the treatment room during delivery.

Method used

Design an olfactory device to be installed on a dental chair. The device is directly connected to the nasal mask by an air supply mechanism embedded in the bottom of the side box. It adopts a motor-piston driven quantitative delivery method, combined with a clamping mechanism and an atomizing component to ensure stable delivery and atomization of essential oils and avoid airflow interference.

Benefits of technology

It achieves continuous and targeted nasal olfactory stimulation of essential oils, ensuring stable olfactory input during treatment, relieving patients' tension, improving the immediacy and consistency of aromatherapy intervention, and does not occupy clinic space.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention provides a sniffing device mounted on a dental diagnosis and treatment chair and a use method, the sniffing device comprises a dental chair, a tool shelf, a spittoon and a mouth lamp, the dental chair is mounted on the ground, a side box for mounting parts is arranged on one side of the dental chair, the tool shelf and the mouth lamp are movably connected to the side box, the spittoon is rotatably connected to the side box, a gas supply mechanism is embedded in the bottom of the side box, and the gas supply mechanism is connected to the bottom of the side box. The air supply mechanism is communicated with a nose mask covering the nose, and the essential oil bottle is connected to the air supply mechanism. According to the sniffing device mounted on the dental diagnosis and treatment chair and the use method, the air supply mechanism is embedded into the bottom of the side box and is directly communicated with the nasal mask, so that an essential oil conveying path is short and closed, airflow interference in a consulting room is avoided, and continuous nasal cavity sniffing stimulation is realized; a motor-piston driven quantitative conveying mode is adopted, so that the flow of the essential oil is stable, and concentration fluctuation is avoided; an elastic movable ring and a screw-thread insert self-locking structure of the clamping mechanism are compatible with essential oil bottles of different specifications, rapid clamping is achieved, and the replacement efficiency is improved.
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Description

Technical Field

[0001] This invention relates to the field of dental medical equipment technology, and in particular to an olfactory suction device installed on a dental chair. The invention also relates to a control method for the olfactory suction device installed on a dental chair. Background Technology

[0002] The highly stressful atmosphere of dental treatment environments has long been proven to increase patients' sympathetic nerve activity, thereby exacerbating pain sensitivity and resistance to procedures. To reduce psychological stress, passive interventions such as background music, visual and auditory distraction, or verbal reassurance are commonly used in clinics. However, these methods lack stimulation of the olfactory pathway and are insufficient to quickly regulate emotional states at a physiological level.

[0003] In recent years, some clinics have attempted to introduce freestanding aroma diffusers or hang sachets on patients' chests before treatment to achieve aromatherapy intervention through environmental evaporation or close-range scent release. While these methods are simple, they are limited by the air exchange rate in the clinic and changes in patient position. The aroma concentration fluctuates significantly in the nasal vestibule, often resulting in intermittent stimulation that is strong at the beginning and weak at the end, failing to create a continuous and stable olfactory input and causing the opposite effect.

[0004] The shortcomings of existing technologies are that there is an uncontrollable spatial distance between the aroma release site and the patient's nasal cavity, and the airflow path is easily affected by mechanical interference from devices such as surgical lights and saliva suction tubes, which causes essential oil molecules to be diluted in large quantities before reaching the olfactory mucosa, making it difficult to guarantee the immediacy and consistency of emotional intervention. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide an olfactory device installed on a dental chair to solve the problems of unsustainable and undirected aromatherapy intervention causing patient tension in existing dental treatment processes.

[0006] To achieve the above objectives, the present invention provides a olfactory suction device installed on a dental chair, employing the following technical solution: An olfactory device installed on a dental chair, comprising: A dental chair, fixed to the ground, has a side box fixedly installed on one side; a tool tray and oral lamp are movably connected to the side box; a spittoon is rotatably connected to the side box; an air supply mechanism is embedded in the bottom of the side box, and the outlet of the air supply mechanism is connected to a nasal mask via a hose, the nasal mask being placed over the patient's nose; an essential oil bottle is connected to the inlet of the air supply mechanism, and the air supply mechanism delivers the essential oil in the essential oil bottle into the patient's nasal cavity through the nasal mask.

[0007] By adopting the above technical solution, the air supply mechanism is embedded in the bottom of the side box and directly connected to the nasal mask, so that the essential oil is not disturbed by the airflow in the examination room during delivery, and can continuously and directionally enter the patient's nasal cavity, thereby maintaining stable olfactory stimulation throughout the treatment process and relieving tension.

[0008] Furthermore, the air supply mechanism includes a housing fixedly mounted on the side box, a motor fixedly mounted inside the housing, a cylinder fixedly mounted inside the housing and located on one side of the motor, and a piston telescopically mounted inside the cylinder and driven by the motor.

[0009] By adopting the above technical solution, the motor drives the piston to reciprocate, providing stable airflow power for the essential oil, ensuring continuous delivery and controllable flow rate.

[0010] Furthermore, the cylinder body is provided with an air inlet and an air outlet, the air inlet being connected to the essential oil bottle and the air outlet being connected to the nose mask; a crank is connected to the drive shaft of the motor, and a connecting rod is hinged between the crank and the piston.

[0011] By adopting the above technical solution, the crank-connecting rod mechanism converts rotational motion into linear reciprocating motion of the piston, realizing quantitative extraction and delivery of essential oils, and ensuring that the delivery rhythm is synchronized with the inhalation demand.

[0012] Furthermore, the air supply mechanism is fixedly equipped with a clamping mechanism for holding the essential oil bottle, the mouth of the essential oil bottle is equipped with a connecting component that communicates with the air inlet, and the nose mask is equipped with an atomizing component for atomizing the essential oil.

[0013] By adopting the above technical solutions, the clamping mechanism ensures that the essential oil bottle is stable and does not shake during treatment, the connecting component enables quick connection between the bottle mouth and the air inlet, and the atomizing component allows the essential oil to be fully mixed with the air, improving inhalation efficiency.

[0014] Furthermore, the clamping mechanism includes a ring frame fixedly mounted on the outer shell and a movable ring rotatably mounted at one end of the ring frame. The other end of the ring frame is elastically connected to the movable ring, and the ring frame and the movable ring together form a circular cavity to accommodate the essential oil bottle.

[0015] By adopting the above technical solution, the flexible movable ring can adapt to essential oil bottles of different diameters, enabling quick clamping and replacement, and improving operational convenience.

[0016] Furthermore, a push plate is rotatably mounted on the ring frame, and a drive component is provided between the push plate and the ring frame to drive the push plate to clamp the essential oil bottle.

[0017] By adopting the above technical solution, the push plate provides lateral clamping force and forms a three-point positioning with the movable ring to prevent the bottle from shaking or falling off.

[0018] Furthermore, the driving component includes a screw sleeve rotatably mounted on the ring frame, a screw rod threadedly connected to the screw sleeve, a circular sleeve rotatably mounted on the push plate, one end of the screw rod being rotatably connected to the circular sleeve, and the axial movement of the screw rod causing the push plate to clamp or release the essential oil bottle.

[0019] By adopting the above technical solution, the screw-sleeve self-locking structure ensures stable and reliable clamping force, while achieving stepless adjustment and compatibility with various bottle sizes.

[0020] Furthermore, the communication component includes a three-way connector installed on the essential oil bottle and an air filter communicating with the cylinder body. The first connector of the three-way connector is connected to the air inlet, the second connector is connected to the essential oil bottle via a one-way valve, the third connector is connected to the air filter via a one-way valve, and the tail of the essential oil bottle is connected to the outside via a one-way valve.

[0021] By adopting the above technical solution, the combination of the three-way connector and the one-way valve forms a one-way air intake channel, which avoids the accumulation of negative pressure inside the bottle, while filtering the outside air to ensure the purity of the essential oil and smooth delivery.

[0022] Furthermore, the atomizing component includes a connecting tube installed at the nasal mask inlet, an air duct installed inside the connecting tube, and a spiral channel located at the tail of the air duct. A baffle is provided between the air duct and the spiral channel to block the airflow from passing through the center, and a through hole for spraying outwards is opened in the middle of the spiral channel.

[0023] By adopting the above technical solution, the high-speed airflow enters the spiral channel through the outer periphery of the baffle and generates rotational shearing, which breaks the essential oil into micron-sized particles and sprays them out from the through hole, forming a uniform and delicate atomized airflow, thereby improving the absorption efficiency of the nasal cavity.

[0024] Furthermore, the outer diameter of the baffle is smaller than the inner diameter of the connecting pipe. After the airflow enters the spiral channel through the outer periphery of the baffle, it is sprayed out through the through hole to form atomized essential oil.

[0025] By adopting the above technical solution, the annular gap formed by the baffle and the tube wall increases the airflow speed, enhances the shearing effect, ensures the stability of the atomized particle size, and avoids large particles irritating the nasal cavity.

[0026] Compared with the prior art, the present invention has the following beneficial effects: The olfactory device installed on a dental chair as described in this invention shortens and closes the essential oil delivery path by embedding the air supply mechanism into the bottom of the side box and directly connecting it to the nasal mask, thus avoiding airflow interference in the treatment room and achieving continuous and directional nasal olfactory stimulation. It employs a motor-piston driven quantitative delivery method to ensure stable essential oil flow, synchronized with treatment duration, and avoid concentration fluctuations. The elastic movable ring of the clamping mechanism and the screw-sleeve self-locking structure are compatible with different sizes of essential oil bottles, enabling quick clamping and stable positioning, improving replacement efficiency. The combination of a three-way connector and a one-way valve prevents negative pressure and backflow inside the bottle, while simultaneously introducing filtered air to ensure the purity of the essential oil and smooth delivery. The spiral channel and baffle work together to generate a high-speed rotating airflow, breaking the essential oil into uniform micron-sized particles, improving nasal absorption rate and mood-relieving effects. The entire module is integrated into the side box of the dental chair, without occupying additional treatment room space, and the nasal mask is connected via a flexible tube, allowing for unrestricted patient head movement and maintaining convenient treatment operation.

[0027] Another object of the present invention is to provide a method of using an olfactory suction device installed on a dental chair, the method being based on the olfactory suction device installed on a dental chair as described above, comprising the following steps: Step 1: Insert the essential oil bottle into the clamping mechanism and connect the gas supply mechanism and the essential oil bottle through the connecting component; Step 2: The air supply mechanism is activated, and the essential oil and air are drawn into the cylinder and then delivered to the atomizing component through the pipeline; Step 3: The atomizing component compresses and atomizes the essential oil and air, then delivers it into the nasal mask for the patient to inhale.

[0028] The method of using the olfactory device of the present invention, which is installed on a dental chair, has the same beneficial effects as the prior art, and will not be described again here. Attached Figure Description

[0029] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0030] In the attached diagram: Figure 1 This is a schematic diagram of the overall structure of the olfactory suction device installed on a dental chair according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the side box and olfactory suction device according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the olfactory device according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the internal structure of the gas supply mechanism according to an embodiment of the present invention; Figure 5 This is an exploded view of the piston and cylinder block according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the clamping mechanism described in an embodiment of the present invention; Figure 7 This is an exploded view of the ring frame and drive component according to an embodiment of the present invention; Figure 8 This is a schematic diagram of the nose mask and atomizing component according to an embodiment of the present invention; Figure 9 This is an exploded view of the connecting pipe and air duct according to an embodiment of the present invention; Figure 10 This is an exploded view of the stop and spiral channel described in an embodiment of the present invention; Figure 11 This is a schematic diagram of the connecting component according to an embodiment of the present invention.

[0031] Explanation of reference numerals in the attached figures: 1. Dental chair; 2. Side case; 3. Tool tray; 4. Dental light; 5. Spittoon; 6. Air supply mechanism; 601. Housing; 602. Motor; 603. Cylinder; 604. Piston; 605. Air inlet; 606. Air outlet; 607. Crank; 608. Connecting rod; 7. Nose mask; 8. Essential oil bottle; 9. Clamping mechanism; 901. Ring frame; 902. Movable ring; 903. Push plate; 904, drive component; 9041, threaded sleeve; 9042, screw; 9043, round sleeve; 10. Connecting components; 1001. Tee connector; 1002. Air filter; 1003. Check valve; 11. Atomizing component; 1101. Connecting pipe; 1102. Air duct; 1103. Spiral channel; 1104. Baffle; 1105. Through hole. Detailed Implementation

[0032] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0033] In the description of this invention, it should be noted that if terms such as "upper," "lower," "inner," or "back" appear, indicating orientation or positional relationship, these are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, if terms such as "first" or "second" appear, they are also used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] Furthermore, in the description of this invention, unless otherwise explicitly defined, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention in light of the specific circumstances.

[0035] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0036] This embodiment relates to an olfactory suction device installed on a dental chair. In terms of overall structure, as follows... Figure 1 and Figure 2 As shown, it includes a dental chair 1, a tool tray 3, a spittoon 5, and an oral lamp 4.

[0037] The dental chair 1 is installed on the ground. A side box 2 for mounting components is provided on one side of the dental chair 1. The tool tray 3 and the oral lamp 4 are movably connected to the side box 2. The spittoon 5 is rotatably connected to the side box 2. The air supply mechanism 6 is embedded in the bottom of the side box 2. A nasal mask 7 that is covered on the nose is connected to the air supply mechanism 6. The essential oil bottle 8 is connected to the air supply mechanism 6.

[0038] It is worth mentioning that the dental chair 1 and side box 2 have the same structure as those commonly found in existing dental chairs, so they will not be described in detail here. The tool tray 3 and the oral lamp 4 are connected to the side box 2 via a balance arm. This arrangement facilitates the movement of the tool tray 3 and the oral lamp 4, improving convenience. The balance arm is equipped with a gas spring, which can achieve positioning that stops easily when pushed or pulled, thereby improving convenience. The air supply mechanism 6 is connected to the essential oil bottle 8. The air supply mechanism 6 blows the essential oil in the essential oil bottle 8 into the patient's nose through the nasal mask 7, which can relieve the patient's tension. The nasal mask 7 is connected to the air supply mechanism 6 via a flexible tube, ensuring that the nasal mask 7 can still be connected to the air supply mechanism 6 after it is placed over the patient's nose.

[0039] Based on the above overall description, this embodiment presents an exemplary structure of an olfactory suction device installed on a dental chair, such as... Figure 2 and Figure 3 As shown, a clamping mechanism 9 is fixedly installed on the air supply mechanism 6, and the essential oil bottle 8 is installed inside the clamping mechanism. A connecting component 10 is installed at the mouth of the essential oil bottle 8, and the connecting component 10 is connected to the air supply mechanism 6. An atomizing component 11 is provided at the nasal mask 7. It should be noted that the clamping mechanism 9 facilitates the installation and removal of the essential oil bottle 8, making it easy to replace with a new one. The connecting component 10 can quickly connect the essential oil bottle 8 to the air supply mechanism 6, improving convenience. The atomizing component 11 can mix and atomize the dispensed essential oil and air, making it easy for the patient to inhale.

[0040] As a preferred implementation method, such as Figure 4 and Figure 5 As shown, the air supply mechanism 6 in this embodiment includes a housing 601 fixedly mounted on the side box 2, a motor 602 fixedly mounted inside the housing 601, a cylinder 603 fixedly mounted inside the housing 601, and a piston 604 telescopically mounted inside the cylinder 603 and moving with the motor 602. The cylinder 603 is provided with an air inlet 605 and an air outlet 606.

[0041] It should be noted that the air inlet 605 is connected to the essential oil bottle 8, and the connecting component 10 is installed between the air inlet 605 and the essential oil bottle 8. The air outlet 606 is connected to the tubing of the nasal mask 7. This configuration allows the essential oil from the essential oil bottle 8 to be drawn into the nasal mask 7 by the piston 604, and then atomized by the atomizing component 11 of the nasal mask 7. After inhalation, the patient can relieve tension during treatment. A fan is installed at the tail of the motor 602 to achieve a cooling effect. A crank 607 is mounted on the drive shaft. The piston 604 and the crank 607 are rotatably connected by a connecting rod 608. After the motor 602 starts, it drives the crank 607 to rotate. The crank 607 drives the connecting rod 608 and the piston 604 to move back and forth. When the piston 604 moves out of the cylinder 603, the essential oil in the essential oil bottle 8 enters the cylinder 603. The piston 604 moves into the cylinder 603, pushing the essential oil from the cylinder 603 into the tube of the nasal mask 7, thereby realizing the delivery of essential oil.

[0042] As a preferred implementation method, such as Figure 6 As shown, the clamping mechanism 9 of this embodiment includes a ring frame 901 fixedly mounted on the gas supply mechanism 6, a push plate 903 rotatably mounted on the ring frame 901, and a drive member 904 controlling the push plate 903 to clamp the essential oil bottle 8. A movable ring 902 is rotatably mounted on the ring frame 901. It should be noted that one end of the movable ring 902 is rotatably connected to one end of the ring frame 901, and the other end is elastically connected. The elastic connection can be made of elastic components such as rubber bands. The purpose is to ensure that the ring frame 901 can adapt to essential oil bottles 8 of different sizes. The ring frame 901 and the movable ring 902 are semi-circular, and together they form a complete circle. This arrangement facilitates the insertion of the essential oil bottle 8 into its interior. The drive member 904 is rotatably mounted on the ring frame 901. The drive member 904 can push the push plate 903 to abut against the essential oil bottle 8, ensuring that the essential oil bottle 8 can be clamped and improving the stability of the essential oil bottle 8.

[0043] As a preferred option, such as Figure 7As shown, in this embodiment, the driving component 904 includes a threaded sleeve 9041 rotatably mounted on the ring frame 901, a screw 9042 threadedly connected to the threaded sleeve 9041, and a circular sleeve 9043 rotatably mounted on the push plate 903. One end of the screw 9042 is rotatably connected to the circular sleeve 9043. Specifically, by rotating the screw 9042, the screw 9042 moves along the axis within the threaded sleeve 9041. When the screw 9042 moves, it pushes the push plate 903 to move, and the push plate 903 abuts against the essential oil bottle 8, thereby achieving the clamping of the essential oil bottle 8 by the push plate 903 and the movable ring 902. Since one end of the push plate 903 is connected to the rotating shaft of the ring frame 901, the threaded sleeve 9041 and the circular sleeve 9043 can rotate. When the screw 9042 moves, the screw 9042 and the circular sleeve 9043 rotate according to different positions of the push plate 903. This arrangement enables the push plate 903 to fix the essential oil bottle 8.

[0044] As a preferred implementation method, such as Figure 11 As shown, the connecting component 10 in this embodiment includes a three-way connector 1001 installed on the essential oil bottle 8, an air filter 1002 connected to the three-way connector 1001, and a one-way valve 1003 connected between the air filter 1002 and the three-way connector 1001. The same one-way valve 1003 is provided at the connection between the tail end of the essential oil bottle 8 and the connection point of the three-way connector 1001. It should be noted that one of the three-way connectors 1001 is connected to the air inlet 605 of the cylinder 603, and the other two connectors are respectively equipped with one-way valves 1003. The two one-way valves 1003 are respectively connected to the essential oil bottle 8 and the air filter 1002. The purpose of setting the one-way valve 1003 at the tail of the essential oil bottle 8 is to ensure that air can enter the essential oil bottle 8 when the essential oil is drawn by the cylinder 603, so as to avoid negative pressure in the essential oil bottle 8 and affect the bottle body. When the piston 604 draws the essential oil, the one-way valves 1003 are fully opened, and air and essential oil enter the cylinder 603 through the three-way connector 1001, and then enter the nose mask 7 from the cylinder 603.

[0045] As a preferred option, such as Figure 8 , Figure 9 and Figure 10As shown, in this embodiment, the atomizing component 11 includes a connecting pipe 1101 installed at the inlet of the nasal mask 7, an air duct 1102 installed inside the connecting pipe 1101, and a spiral channel 1103 located at the tail of the air duct 1102. A baffle 1104 is provided between the air duct 1102 and the spiral channel 1103 to block the airflow from passing through the middle. A through hole 1105 for spraying outwards is installed at the tail of the spiral channel 1103. It is worth mentioning that the two ends of the connecting tube 1101 are connected to the nose mask 7 and the tubing. The air duct 1102 is opened inside the connecting tube 1101. When the airflow passes through the air duct 1102, it is compressed. The diameter of the baffle 1104 is smaller than the diameter of the connecting tube 1101. When the airflow passes through the baffle 1104, it passes between the baffle 1104 and the connecting tube 1101. The spiral channel 1103 is located at the tail of the baffle 1104. The airflow from the baffle 1104 flows into the spiral channel 1103. The through hole 1105 is located in the center of the spiral channel 1103. The airflow compressed by the spiral channel 1103 is released through the through hole 1105. This setting achieves the atomization effect.

[0046] The olfactory device installed on the dental chair in this embodiment, by embedding the air supply mechanism 6 into the bottom of the side box 2 and directly communicating with the nasal mask 7, shortens and closes the essential oil delivery path, avoiding airflow interference in the treatment room and achieving continuous and directional nasal olfactory stimulation; the quantitative delivery method driven by the motor 602 and piston 604 ensures a stable essential oil flow rate synchronized with the treatment time, avoiding concentration fluctuations; the elastic movable ring 902 of the clamping mechanism 9 and the self-locking structure of the screw 9042 and screw sleeve 9041 are compatible with different sizes of essential oil bottles 8, achieving rapid... Clamping and stable positioning improve replacement efficiency; the combination of the three-way connector 1001 and the one-way valve 1003 prevents negative pressure and backflow inside the bottle, while introducing filtered air to ensure the purity of the essential oil and smooth delivery; the spiral channel 1103 and the baffle 1104 work together to generate a high-speed rotating airflow, breaking the essential oil into uniform micron-sized particles, improving nasal absorption rate and mood relief effect; the whole module is integrated into the side box 2 of the dental chair, without taking up extra room space, and the nasal mask 7 is connected by a flexible tube, so the patient's head movement is not restricted, maintaining the convenience of treatment operation.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A olfactory suction device installed on a dental chair, characterized in that, include: Dental chair (1) is fixed to the ground, and a side box (2) is fixedly installed on one side of the dental chair (1); The tool tray (3) and the oral lamp (4) are movably connected to the side box (2); The spittoon (5) is rotatably connected to the side box (2); An air supply mechanism (6) is embedded in the bottom of the side box (2), and the outlet of the air supply mechanism (6) is connected to a nasal mask (7) through a hose, and the nasal mask (7) is placed over the patient's nose. The essential oil bottle (8) is connected to the inlet of the gas supply mechanism (6), and the gas supply mechanism (6) delivers the essential oil in the essential oil bottle (8) into the patient's nasal cavity through the nasal mask (7).

2. The olfactory suction device installed on a dental chair according to claim 1, characterized in that: The gas supply mechanism (6) includes a housing (601) fixedly mounted on the side box (2), a motor (602) fixedly mounted inside the housing (601), a cylinder (603) fixedly mounted inside the housing (601) and located on one side of the motor (602), and a piston (604) telescopically mounted inside the cylinder (603) and driven by the motor (602).

3. The olfactory suction device installed on a dental chair according to claim 2, characterized in that: The cylinder (603) is provided with an air inlet (605) and an air outlet (606). The air inlet (605) is connected to the essential oil bottle (8), and the air outlet (606) is connected to the nose mask (7). A crank (607) is connected to the drive shaft of the motor (602), and a connecting rod (608) is hinged between the crank (607) and the piston (604).

4. The olfactory suction device installed on a dental chair according to claim 3, characterized in that: The gas supply mechanism (6) is fixedly provided with a clamping mechanism (9) for clamping an essential oil bottle (8), and a connecting component (10) connected to the air inlet (605) is installed at the bottle mouth of the essential oil bottle (8). An atomizing component (11) for atomizing essential oil is provided at the nose mask (7).

5. The olfactory suction device installed on a dental chair according to claim 4, characterized in that: The clamping mechanism (9) includes a ring frame (901) fixedly mounted on the outer shell (601) and a movable ring (902) rotatably mounted on one end of the ring frame (901). The other end of the ring frame (901) is elastically connected to the movable ring (902). The ring frame (901) and the movable ring (902) together form a circular cavity to accommodate the essential oil bottle (8).

6. The olfactory suction device installed on a dental chair according to claim 5, characterized in that: A push plate (903) is rotatably mounted on the ring frame (901), and a drive member (904) is provided between the push plate (903) and the ring frame (901) to drive the push plate (903) to clamp the essential oil bottle (8).

7. The olfactory suction device installed on a dental chair according to claim 6, characterized in that: The driving component (904) includes a screw sleeve (9041) rotatably mounted on the ring frame (901) and a screw rod (9042) threadedly connected inside the screw sleeve (9041). A round sleeve (9043) is rotatably mounted on the push plate (903). One end of the screw rod (9042) is rotatably connected to the round sleeve (9043). The axial movement of the screw rod (9042) drives the push plate (903) to clamp or release the essential oil bottle (8).

8. The olfactory suction device installed on a dental chair according to any one of claims 4-7, characterized in that: The connecting component (10) includes a three-way connector (1001) installed on the essential oil bottle (8) and an air filter (1002) connected to the cylinder body (603). The first connector of the three-way connector (1001) is connected to the air inlet (605), the second connector is connected to the essential oil bottle (8) via a one-way valve (1003), and the third connector is connected to the air filter (1002) via a one-way valve (1003). The tail of the essential oil bottle (8) is connected to the outside via a one-way valve (1003).

9. The olfactory suction device installed on a dental chair according to any one of claims 4-7, characterized in that: The atomizing component (11) includes a connecting pipe (1101) installed at the inlet of the nasal mask (7), an air duct (1102) installed inside the connecting pipe (1101), and a spiral channel (1103) located at the tail of the air duct (1102). A baffle (1104) is provided between the air duct (1102) and the spiral channel (1103) to block the airflow from passing through the center. A through hole (1105) for spraying outward is opened in the middle of the spiral channel (1103). The outer diameter of the baffle (1104) is smaller than the inner diameter of the connecting pipe (1101). After the airflow passes through the outer periphery of the baffle (1104) and enters the spiral channel (1103), it is sprayed out through the through hole (1105) to form atomized essential oil.

10. A method of using a olfactory suction device installed on a dental chair, characterized in that, This method, based on the olfactory device of the dental chair as described in claim 4, includes the following steps: Step 1: Insert the essential oil bottle into the clamping mechanism and connect the gas supply mechanism and the essential oil bottle through the connecting component; Step 2: The air supply mechanism is activated, and the essential oil and air are drawn into the cylinder and then delivered to the atomizing component through the pipeline; Step 3: The atomizing component compresses and atomizes the essential oil and air, then delivers it into the nasal mask for the patient to inhale.