A respiratory nebulizer drug delivery device

Abstract

The present invention provides a respiratory nebulizer drug delivery device, comprising a shell, one end of which is connected to a mask via an airway, a liquid medicine tank mounted on the shell via a medicine tank mounting seat, the liquid medicine tank containing prepared liquid medicine; a liquid cylinder, a second air cylinder, a first cylinder, and a driving mechanism are also fixedly mounted on the shell. The nebulizer drug delivery device provided by the present invention utilizes a driving mechanism to allow the liquid medicine in the liquid cylinder to be atomized and sprayed out through an atomizer nozzle after passing through a liquid outlet pipe, and simultaneously enables the third airway to blow air. When the third airway is blown, the atomized liquid medicine sprayed by the atomizer nozzle is facilitated to be guided along the airway to the position of the mask, thereby facilitating the patient's inhalation; in addition, the airflow has a lag compared to the atomization of the liquid medicine, so that the airway is first filled with the atomized liquid medicine, and then the airflow can be used to deliver the atomized liquid medicine to the mask, thereby facilitating the patient's inhalation of the atomized liquid medicine for treatment.

Description

Technical Field

[0001] The present invention relates to a drug delivery device, in particular to a respiratory atomization drug delivery device. Background Art

[0002] Nebulization therapy mainly refers to aerosol inhalation therapy. The so-called aerosol refers to tiny solid or liquid particles suspended in the air. The drug is dispersed into tiny droplets or particles through an atomization device, so that it is suspended in the gas and enters the respiratory tract and lungs to clean and humidify the airway.

[0003] However, existing nebulizer drug delivery devices are inconvenient to use. The nebulizer spray method has no guidance for the nebulized gas, and the nebulized gas is relatively diffuse. The direct spray method can easily cause discomfort to the user. At the same time, the nebulized liquid is not quantified, and the stability of the nebulized amount cannot be guaranteed. Summary of the Invention

[0004] The purpose of the embodiments of the present invention is to provide a respiratory atomization drug delivery device, which aims to solve the technical problems raised in the above background technology. To achieve the above purpose, the present invention provides the following technical solutions:

[0005] A respiratory atomizing drug delivery device comprises a housing, one end of which is connected to a mask via an airway, a liquid medicine tank mounted on the housing via a tank mounting seat, the liquid medicine tank containing prepared liquid medicine; a liquid cylinder, a second air cylinder, and a first air cylinder are also fixedly mounted on the housing;

[0006] The top of the liquid cylinder is connected to the medicine tank mounting seat through a liquid inlet pipe, and a liquid inlet one-way valve is provided on the liquid inlet pipe. The liquid inlet one-way valve is used to allow the liquid in the medicine tank to enter the liquid cylinder in one direction through the liquid inlet pipe; the liquid cylinder is vertically arranged, and a liquid outlet pipe is connected to one side of the bottom of the liquid cylinder. The liquid outlet pipe is connected to an atomizing nozzle arranged in the airway, and a liquid outlet one-way valve is further provided on the liquid outlet pipe. The liquid outlet one-way valve is used to allow the liquid in the liquid cylinder to be fed into the atomizing nozzle in one direction through the liquid outlet one-way valve for atomization and spraying; in addition, a first air pipe is also connected to one side of the top of the liquid cylinder;

[0007] The second cylinder is provided with a first piston, the first piston is installed at one end of the first piston rod, and the other end of the first piston rod extends out of the second cylinder, the second cylinder is placed horizontally, and the ends of the second cylinder are respectively connected to a second air pipe and a third air pipe, and the end of the third air pipe extends into the airway. When the first piston moves in the second cylinder, the gas in the second cylinder can be discharged through the third air pipe, so that the third air pipe blows air into the airway, thereby guiding the atomized liquid sprayed by the atomizing nozzle; wherein, a second air flow check valve is installed on the third air pipe, and the second air flow check valve is used to allow the air in the first piston to enter the airway in a one-way manner through the third air pipe; and a first air flow check valve is installed on the second air pipe, and the first air flow check valve is used to allow the air outside the second cylinder to enter the second cylinder in a one-way manner through the second air pipe. Therefore, when the first piston moves in the second cylinder, air flow can be sent into the airway according to the moving direction of the first piston;

[0008] The first cylinder is arranged vertically, and a second piston is arranged in a lifting and sealing sliding manner in the first cylinder. The second piston is fixedly connected to the bottom end of the second piston rod, and the top end of the second piston extends to the outside of the first cylinder. A fourth air pipe is connected to one side of the bottom of the first cylinder, and the other end of the fourth air pipe is connected to the first air pipe.

[0009] As a further limitation of the present invention, a driving mechanism is also provided on the shell, and the driving mechanism includes a driving turntable, which is rotatably arranged in the shell. The driving turntable is coaxially fixedly connected to the output shaft of the servo motor so as to utilize the started servo motor to drive the driving turntable to rotate. A first guide column is fixedly mounted on the driving turntable, and when the driving turntable rotates, it drives the first guide column to perform circular motion.

[0010] As a further limitation of the present invention, the driving mechanism also includes a lifting frame, and the top end of the second piston rod is fixedly connected to the lifting frame; a frame rod is fixedly connected to the lifting frame, and the first guide column is located in a rectangular area formed between the frame rod and the lifting frame. When the first guide column is in the process of moving upward in a circular motion, the first guide column abuts against the frame rod to push the frame rod and the lifting frame upward; on the contrary, when the first guide column is in the process of moving downward in a circular motion, the first guide column separates from the frame rod, and the first guide column abuts against the inner side wall of the lifting frame.

[0011] As a further limitation of the solution of the present invention, a support channel is provided on the lifting frame, a support slide rod is slidably arranged through the support channel, one end of the support slide rod is fixedly connected to the support rod, and a second guide column is fixedly installed on the other end of the support rod, and the second guide column slides against the horizontal frame.

[0012] As a further limitation of the present invention, a plurality of multi-groove plates are evenly spaced on the surface of the support slide rod, and the multi-groove plates are adapted to the first guide column. When the first guide column rests on the inner side wall of the lifting frame, the first guide column rests inside the multi-groove plates.

[0013] As a further limitation of the scheme of the present invention, a positioning plate is fixedly provided on the inner wall of the support channel, and the positioning plate extends into the support slide rod. The support slide rod and the positioning plate are connected by a connecting spring, so that when the support slide rod produces a lateral displacement relative to the lifting frame, the elastic reset force of the connecting spring can be used to achieve reset.

[0014] As a further limitation of the solution of the present invention, a vertical guide block is fixedly mounted on the frame rod, and the vertical guide block is slidably arranged in the vertical guide rail groove up and down to realize the guiding function when the frame rod and the lifting frame move up and down; preferably, a slide plate is provided on the side wall of the vertical guide block through a support spring, and the surface of the slide plate is a rough surface structure. Under the elastic support of the support spring, the rough surface of the slide plate is pressed against the inner wall of the vertical guide rail groove, so that when the first guide column does not push the frame rod and the lifting frame to move up and down, the vertical guide block can stay and be fixed in the vertical guide rail groove;

[0015] The inner wall of the vertical guide groove also has a rough surface structure. The rough surface structure is a plurality of arc-shaped protrusions, which makes the sliding between the slide plate and the inner wall of the vertical guide groove have a certain resistance.

[0016] Compared with the prior art, the beneficial effects of the atomized drug delivery device provided by the present invention are:

[0017] First, the first guide column, which is moving in a clockwise circular motion, lifts the frame rod when the left half of the drive turntable moves upward, causing the lifting frame to move upward. This process causes the second piston to move upward in the first cylinder. Through the connection between the first and fourth air pipes, the air in the liquid cylinder is drawn into the first cylinder, reducing the air pressure in the liquid cylinder. At this time, the liquid inlet one-way valve opens, and the liquid in the liquid tank is added to the liquid cylinder through the liquid inlet pipe.

[0018] Second, when the first guide post moves in a clockwise circular motion to the top of the driving turntable, as the first guide post continues to move clockwise, the first guide post is separated from the frame rod, and then the first guide post abuts against one of the multi-slot plates on the supporting slide bar. As the first guide post continues to move in a clockwise circular motion, it pushes the supporting slide bar to move first right and then left. Under the connection and pulling action of the support rod and the second guide post, the horizontal frame moves, and in the process of moving to the right, the first piston is driven to move to the right in the second cylinder, so that external air enters the second cylinder through the second air pipe; in the process of moving to the left, the first piston moves to the left in the second cylinder, so that the air flow in the second cylinder is discharged through the third air pipe;

[0019] Third, the second piston moves downward in the first cylinder, and under the action of the connection between the first air pipe and the fourth air pipe, the air in the first cylinder is sent into the liquid cylinder, causing the air pressure in the liquid cylinder to increase. At this time, the liquid discharge check valve opens, and the liquid medicine in the liquid cylinder passes through the liquid discharge pipe and is sprayed out by the atomizing nozzle. Moreover, when the third air pipe is blowing, the atomized liquid medicine sprayed by the atomizing nozzle is helped to be drained along the airway to the position of the mask, facilitating the patient's inhalation.

[0020] Fourth, during the atomizing spraying of the medicine by the atomizing nozzle, the first piston moves first to the right and then to the left in the second cylinder. This is conducive to the atomizing nozzle spraying the atomized medicine first, and then the airflow of the third trachea follows up to guide the flow. In other words, the airflow has a lag compared to the atomization of the medicine, so that the airway is first filled with the atomized medicine, and then the airflow can be used to deliver it to the mask, making it easier for the patient to inhale the atomized medicine for treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention.

[0022] Figure 1 This is a three-dimensional structural diagram of a respiratory atomization drug delivery device according to the present invention;

[0023] Figure 2 A top view of the respiratory atomization drug delivery device provided by the present invention;

[0024] Figure 3 This is a front view of the respiratory atomization drug delivery device provided by the present invention;

[0025] Figure 4 A schematic diagram of the internal structure of the respiratory atomization drug delivery device provided by the present invention;

[0026] Figure 5 A schematic diagram of the driving mechanism of the respiratory atomization drug delivery device provided by the present invention;

[0027] Figure 6 A schematic diagram of a lifting frame in the driving mechanism provided by the present invention;

[0028] Figure 7 A schematic diagram of a vertical guide block in the driving mechanism provided by the present invention;

[0029] Figure 8 A schematic diagram of a transverse moving rod in the driving mechanism provided by the present invention;

[0030] Figure 9 A schematic diagram of the liquid cylinder and the second air cylinder in the respiratory atomization drug delivery device provided by the present invention;

[0031] Figure 10 This is a schematic diagram of the first cylinder in the respiratory atomization drug delivery device provided by the present invention.

[0032] The reference numerals are as follows:

[0033] 100, housing; 101, side seat; 102, servo motor; 1021, drive turntable; 1022, first guide post; 103, handle; 104, horizontal guide groove; 105, vertical guide groove; 106, battery compartment; 107, horizontal frame; 1071, horizontal slider;

[0034] 200. Liquid medicine tank; 201. Medicine tank mounting base;

[0035] 300, mask; 301, airway;

[0036] 400, liquid cylinder; 401, liquid inlet pipe; 402, liquid inlet check valve; 403, liquid outlet pipe; 404, liquid outlet check valve; 405, first air pipe;

[0037] 500, second cylinder; 501, second air pipe; 502, first air flow check valve; 503, third air pipe; 504, second air flow check valve; 505, first piston; 506, first piston rod;

[0038] 600, first cylinder; 601, second piston; 602, second piston rod; 603, fourth air pipe;

[0039] 700, lifting frame; 701, support channel; 702, frame rod; 703, support slide; 704, support rod; 705, second guide post; 706, multi-slot plate; 707, vertical guide block; 7071, slide plate; 7072, support spring; 708, positioning plate; 709, connecting spring;

[0040] 800, atomizing nozzle;

[0041] 900. Control buttons. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0043] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0044] like Figures 1-4As shown, in an embodiment of the present invention, a respiratory nebulizer drug delivery device is provided, which includes a shell 100, one end of the shell 100 is connected to a mask 300 via an airway 301, and a medicine liquid tank 200 is also installed on the shell 100 via a medicine tank mounting seat 201, and the medicine liquid tank 200 is filled with prepared medicine liquid; a liquid cylinder 400, a second air cylinder 500 and a first air cylinder 600 are also fixedly provided on the shell 100.

[0045] Among them, Figure 4 and Figure 9 As shown, the top of the liquid cylinder 400 is connected to the medicine tank mounting seat 201 through a liquid inlet pipe 401, and a liquid inlet one-way valve 402 is provided on the liquid inlet pipe 401. The liquid inlet one-way valve 402 is used to allow the liquid in the medicine tank 200 to enter the liquid cylinder 400 in a one-way manner through the liquid inlet pipe 401; the liquid cylinder 400 is vertically arranged, and a liquid outlet pipe 403 is connected to one side of the bottom of the liquid cylinder 400. The liquid outlet pipe 403 is connected to the atomizing nozzle 800 arranged in the airway 301, and a liquid outlet one-way valve 404 is also provided on the liquid outlet pipe 403. The liquid outlet one-way valve 404 is used to allow the liquid in the liquid cylinder 400 to be sent into the atomizing nozzle 800 in a one-way manner through the liquid outlet one-way valve 404 for atomization and spraying; in addition, a first air pipe 405 is also connected to one side of the top of the liquid cylinder 400.

[0046] Please continue reading Figure 4 and Figure 9 In the embodiment of the present invention, a first piston 505 is provided in the second cylinder 500. The first piston 505 is mounted on one end of a first piston rod 506. The other end of the first piston rod 506 extends out of the second cylinder 500. The second cylinder 500 is placed horizontally. The ends of the second cylinder 500 are respectively connected to a second air pipe 501 and a third air pipe 503. The end of the third air pipe 503 extends into the airway 301. When the first piston 505 moves in the second cylinder 500, the gas in the second cylinder 500 can be discharged through the third air pipe 503, so that the third air pipe 503 blows air into the airway 301. To achieve the purpose of draining the atomized liquid sprayed by the atomizing nozzle 800; wherein, a second air flow one-way valve 504 is installed on the third air pipe 503, and the second air flow one-way valve 504 is used to allow the air in the first piston 505 to enter the airway 301 in one direction through the third air pipe 503; and a first air flow one-way valve 502 is installed on the second air pipe 501, and the first air flow one-way valve 502 is used to allow the air outside the second cylinder 500 to enter the second cylinder 500 in one direction through the second air pipe 501. Therefore, when the first piston 505 moves in the second cylinder 500, air flow can be sent into the airway 301 according to the moving direction of the first piston 505.

[0047] Please continue reading Figure 4 、 Figure 5 and Figure 10 In the embodiment of the present invention, the first cylinder 600 is arranged vertically, and a second piston 601 is provided in the first cylinder 600 in a lifting and sealing sliding manner. The second piston 601 is fixedly connected to the bottom end of the second piston rod 602, and the top end of the second piston 601 extends to the outside of the first cylinder 600. A fourth air pipe 603 is connected to one side of the bottom of the first cylinder 600, and the other end of the fourth air pipe 603 is connected to the first air pipe 405.

[0048] Please continue reading Figure 4-Figure 6 In an embodiment of the present invention, a driving mechanism is further provided on the housing 100, and the driving mechanism includes a driving turntable 1021. The driving turntable 1021 is rotatably provided in the housing 100, and the driving turntable 1021 is coaxially fixedly connected to the output shaft of the servo motor 102, so that the started servo motor 102 can drive the driving turntable 1021 to rotate. A first guide column 1022 is fixedly installed on the driving turntable 1021. When the driving turntable 1021 rotates, it drives the first guide column 1022 to perform a circular motion.

[0049] Preferably, the driving mechanism also includes a lifting frame 700, and the top end of the second piston rod 602 is fixedly connected to the lifting frame 700; a frame rod 702 is fixedly connected to the lifting frame 700, and the first guide column 1022 is located in the rectangular area formed between the frame rod 702 and the lifting frame 700. When the first guide column 1022 is in the process of moving upward in a circular motion, the first guide column 1022 is against the frame rod 702 to push the frame rod 702 and the lifting frame 700 upward; on the contrary, when the first guide column 1022 is in the process of moving downward in a circular motion, the first guide column 1022 is separated from the frame rod 702, and the first guide column 1022 is against the inner wall of the lifting frame 700.

[0050] Furthermore, a support channel 701 is provided on the lifting frame 700, and a support slide rod 703 is slidably provided on the support channel 701. One end of the support slide rod 703 is fixedly connected to the support rod 704, and the other end of the support rod 704 is fixedly installed with a second guide column 705, which slides against the horizontal frame 107.

[0051] Further, such as Figure 5 、 Figure 6 and Figure 8 As shown, a plurality of multi-grooved plates 706 are evenly spaced on the surface of the support slide bar 703 , and the multi-grooved plates 706 are adapted to the first guide column 1022 . When the first guide column 1022 rests on the inner side wall of the lifting frame 700 , the first guide column 1022 rests inside the multi-grooved plates 706 .

[0052] Further, such as Figure 6 and Figure 8 As shown, a positioning plate 708 is fixedly provided on the inner wall of the support channel 701, and the positioning plate 708 extends into the support slide bar 703. The support slide bar 703 and the positioning plate 708 are connected by a connecting spring 709, so that when the support slide bar 703 produces a lateral displacement relative to the lifting frame 700, the elastic reset force of the connecting spring 709 can be used to achieve reset.

[0053] Please continue reading Figure 4-Figure 7 The housing 100 is further provided with a vertical guide rail groove 105 , which is used to guide the up and down movement of the lifting frame 700 .

[0054] Among them, a vertical guide block 707 is fixedly installed on the frame rod 702, and the vertical guide block 707 slides up and down in the vertical guide rail groove 105 to realize the guiding effect when the frame rod 702 and the lifting frame 700 move up and down; as a preference, a slide plate 7071 is supported by a support spring 7072 on the side wall of the vertical guide block 707, and the surface of the slide plate 7071 is a rough surface structure. Under the elastic support of the support spring 7072, the rough surface of the slide plate 7071 is against the inner wall of the vertical guide rail groove 105, so that the first guide column 1022 can stay and be fixed in the vertical guide rail groove 105 when it does not push the frame rod 702 and the lifting frame 700 to move up and down.

[0055] As a preferred embodiment, the inner wall of the vertical guide groove 105 also has a rough surface structure. The rough surface structure is a plurality of arc-shaped protrusions, so that the sliding between the slide plate 7071 and the inner wall of the vertical guide groove 105 has a certain resistance.

[0056] The driving mechanism provided by the present invention operates as follows:

[0057] First process: When the first guide post 1022, which performs a clockwise circular motion, drives the left half of the turntable 1021 upward, it lifts the frame rod 702, causing the lifting frame 700 to move upward. This process causes the second piston 601 to move upward in the first cylinder 600. Through the connection between the first air pipe 405 and the fourth air pipe 603, the air in the liquid cylinder 400 is drawn into the first air cylinder 600, reducing the air pressure in the liquid cylinder 400. At this time, the liquid inlet check valve 402 opens, and the liquid in the liquid tank 200 is added to the liquid cylinder 400 through the liquid inlet pipe 401.

[0058] The second process: when the first guide post 1022 moves in a clockwise circular motion to the top of the driving turntable 1021, as the first guide post 1022 continues to move clockwise, the first guide post 1022 is separated from the frame rod 702, and then the first guide post 1022 is pressed against one of the multi-slot plates 706 on the support slide 703. As the first guide post 1022 continues to move in a clockwise circular motion, it pushes the support slide 703 to move first right and then left. Under the connection and pulling action of the support rod 704 and the second guide post 705, the horizontal frame 107 moves, and then in the process of moving to the right, the first piston 505 is driven to move rightward in the second cylinder 500, so that external air enters the second cylinder 500 through the second air pipe 501; in the process of moving to the left, the first piston 505 moves leftward in the second cylinder 500, so that the air in the second cylinder 500 is discharged through the third air pipe 503.

[0059] At the same time, synchronously with the second process, the second piston 601 moves downward in the first cylinder 600, and under the connection between the first air pipe 405 and the fourth air pipe 603, the air in the first cylinder 600 is sent into the liquid cylinder 400, so that the air pressure in the liquid cylinder 400 increases. At this time, the liquid outlet one-way valve 404 is opened, and the liquid medicine in the liquid cylinder 400 is atomized and sprayed out by the atomizing nozzle 800 after passing through the liquid outlet pipe 403; and when the third air pipe 503 is blowing, it helps the atomized liquid medicine sprayed by the atomizing nozzle 800 to be drained along the airway 301 to the position of the mask 300, which is convenient for the patient to inhale.

[0060] It can be understood that in the second process of the present invention, during the atomizing nozzle 800 atomizing and spraying of the medicinal liquid, the first piston 505 moves in the second cylinder 500 first to the right and then to the left. This is beneficial for the atomizing nozzle 800 to spray the atomized medicinal liquid first, and then the airflow of the third air pipe 503 follows up to guide the flow. That is to say, the airflow has a lag compared to the atomization of the medicinal liquid, so that the airway 301 is first filled with the atomized medicinal liquid, and then the airflow can be used to deliver it to the mask 300, so that the patient can inhale the atomized medicinal liquid for treatment.

[0061] In addition, a transverse guide groove 104 is opened in the shell 100, and a transverse slider 1071 is fixedly installed on the transverse frame 107. The transverse slider 1071 slides against the transverse guide groove 104 so that the transverse frame 107 can only be displaced laterally along the direction of the transverse guide groove 104; the transverse frame 107 is fixedly connected to the end of the first piston rod 506. When the transverse frame 107 moves, it pushes the first piston 505 to move in the second cylinder 500.

[0062] Please continue reading Figure 1-Figure 3The shell 100 is also provided with a side seat 101, and the servo motor 102 is installed on the side seat 101. The shell 100 is also provided with a battery compartment 106, and the battery compartment 106 is installed with batteries for supplying power to electrical components such as the servo motor 102 and the atomizing nozzle 800; the handle 103 is installed on the shell 100, which is convenient for the user to hold the atomizing drug delivery device; the handle 103 is also provided with a control button 900, which is used to control the start and stop of the atomizing drug delivery device.

[0063] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and exemplary embodiments. They can be applied to a variety of fields suitable for the present invention. Further modifications will be readily apparent to those skilled in the art. Therefore, the present invention is not limited to the specific details and illustrations shown and described herein without departing from the general concept defined by the claims and their equivalents.

Claims

1. A respiratory atomization drug delivery device, comprising a housing (100), one end of the housing (100) being connected to a mask (300) via an airway (301), and a liquid medicine tank (200) being mounted on the housing (100) via a tank mounting seat (201); Its characteristics are: The housing (100) is further fixedly provided with a liquid cylinder (400), a second air cylinder (500) and a first air cylinder (600); The top of the liquid cylinder (400) is connected to the medicine tank mounting seat (201) through a liquid inlet pipe (401), and a liquid inlet one-way valve (402) is provided on the liquid inlet pipe (401). The liquid inlet one-way valve (402) is used to allow the liquid in the medicine tank (200) to enter the liquid cylinder (400) in one direction through the liquid inlet pipe (401); the bottom side of the liquid cylinder (400) is connected to a liquid outlet pipe (403). The liquid pipe (403) is connected to the atomizing nozzle (800) provided in the air passage (301). A liquid outlet one-way valve (404) is also provided on the liquid outlet pipe (403). The liquid outlet one-way valve (404) is used to allow the liquid medicine in the liquid cylinder (400) to be fed into the atomizing nozzle (800) in a one-way manner through the liquid outlet one-way valve (404) for atomization and spraying. A first air pipe (405) is also connected to one side of the top of the liquid cylinder (400). A first piston (505) is provided in the second cylinder (500), and the first piston (505) is installed at one end of the first piston rod (506). The ends of the second cylinder (500) are respectively connected with a second air pipe (501) and a third air pipe (503), and the end of the third air pipe (503) extends into the air channel (301); a second air flow check valve (504) is installed on the third air pipe (503), and the second air flow check valve (504) is used to allow the air in the first piston (505) to enter the air channel (301) in a one-way manner through the third air pipe (503); a first air flow check valve (502) is installed on the second air pipe (501), and the first air flow check valve (502) is used to allow the air outside the second cylinder (500) to enter the second cylinder (500) in a one-way manner through the second air pipe (501); A second piston (601) is provided in a lifting and sealing sliding manner in the first cylinder (600), the second piston (601) is fixedly connected to the bottom end of the second piston rod (602), the top end of the second piston (601) extends to the outside of the first cylinder (600), a fourth air pipe (603) is connected to one side of the bottom of the first cylinder (600), and the other end of the fourth air pipe (603) is connected to the first air pipe (405); A support channel (701) is provided on the lifting frame (700), and a support slide bar (703) is slidably provided through the support channel (701). One end of the support slide bar (703) is fixedly connected to the support bar (704), and the other end of the support bar (704) is fixedly installed with a second guide column (705). The second guide column (705) slides against the inside of the transverse frame (107). When the transverse frame (107) moves, it pushes the first piston (505) to move in the second cylinder (500); The surface of the support slide bar (703) is provided with a plurality of multi-grooved plates (706) at equal intervals. The multi-grooved plates (706) are adapted to the first guide pillars (1022). When the first guide pillars (1022) abut against the inner side wall of the lifting frame (700), the first guide pillars (1022) abut against the inside of the multi-grooved plates (706). A positioning plate (708) is also fixedly provided on the inner wall of the support channel (701), and the positioning plate (708) extends into the support slide bar (703), and the support slide bar (703) and the positioning plate (708) are connected via a connecting spring (709); The housing (100) is further provided with a driving mechanism, comprising a driving turntable (1021), the driving turntable (1021) being rotatably disposed within the housing (100), the driving turntable (1021) being coaxially fixedly connected to an output shaft of the servo motor (102), a first guide post (1022) being fixedly mounted on the driving turntable (1021), and when the driving turntable (1021) rotates, the first guide post (1022) is driven to perform a circular motion; The driving mechanism further comprises a lifting frame (700), the top end of the second piston rod (602) being fixedly connected to the lifting frame (700); a frame rod (702) being fixedly connected to the lifting frame (700), the first guide column (1022) being located in a rectangular area enclosed by the frame rod (702) and the lifting frame (700); when the first guide column (1022) is in the process of moving upward in a circular motion, the first guide column (1022) abuts against the frame rod (702), pushing the frame rod (702) and the lifting frame (700) upward; when the first guide column (1022) is in the process of moving downward in a circular motion, the first guide column (1022) is separated from the frame rod (702), and the first guide column (1022) abuts against the inner wall of the lifting frame (700).

2. The respiratory nebulizer drug delivery device according to claim 1, characterized in that: A vertical guide block (707) is fixedly mounted on the frame rod (702), and the vertical guide block (707) is slidably disposed in the vertical guide rail groove (105). A slide plate (7071) is provided on the side wall of the vertical guide block (707) via a support spring (7072), and the surface of the slide plate (7071) is a rough surface structure. Under the elastic support of the support spring (7072), the rough surface of the slide plate (7071) is pressed against the inner wall of the vertical guide rail groove (105); the inner wall of the vertical guide rail groove (105) also has a rough surface structure, and the rough surface structure is a plurality of arc-shaped protrusions.

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