Modularized anti-backflow pollution atomizer

Abstract

The invention discloses a modular anti-backflow pollution atomizer, which belongs to the technical field of atomizers, and comprises a main machine for outputting high-pressure airflow, an anti-backflow pipeline module is connected to the air delivery end of the main machine, an air delivery hose is connected to the tail end of the anti-backflow pipeline module in a penetrating manner, and an atomization bin is connected to the air delivery hose in a penetrating manner; the anti-backflow pipeline module comprises a gas conveying pipe connected to the main machine, a one-way valve is installed on the gas conveying pipe, a rotating bent pipe is rotationally connected to the gas conveying pipe, a three-way valve pipe is installed at the lowest position of the rotating bent pipe, and a liquid accumulation bin is installed at the bottom of the three-way valve pipe in a penetrating mode. A transmission mechanism for driving the rotating bent pipe to rotate back and forth to accelerate downward convergence of accumulated liquid in the rotating bent pipe is arranged on the main machine; the atomizer can effectively prevent effusion from flowing backwards, can quickly collect and treat the effusion, prevents a host interface from being polluted, and keeps normal atomization treatment.

Description

Technical Field

[0001] This invention relates to the field of atomizer technology, specifically to a modular atomizer that prevents backflow and contamination. Background Technology

[0002] Respiratory diseases such as asthma, chronic obstructive pulmonary disease, pneumonia, and bronchitis are prevalent. These diseases can be treated by drugs that act directly on the airway mucosa and take effect quickly. Nebulizers can convert drugs into inhalable droplets of 1-5μm, which can directly enter the trachea, bronchi, and even alveoli, resulting in rapid onset of action and high drug utilization.

[0003] For example, patent CN219334695U discloses an atomizer with anti-backflow function, including an outer shell, a connecting port, an atomizing tube, a connecting sleeve, and a main unit. The bottom of the connecting port is fixedly connected to a connecting tube located at the opening of the outer shell, and a pipe wall is fixedly connected to the outside of the connecting tube. A uniformly distributed spiral ring is set between the opening of the outer shell and the pipe wall. The sealing ring, the first sealing strip, and the second sealing strip enhance the sealing between the outer shell and the connecting port, as well as between the connecting port and the atomizing tube, thus preventing the atomizer from backflowing. The arc-shaped pipe wall fixedly connected to the bottom of the pipe wall fits tightly with the opening of the atomizing tube, effectively preventing the mist from condensing into water droplets and sliding into the interior of the atomizing tube, thereby improving the sealing performance of the device.

[0004] For example, patent CN222930139U discloses an atomization processing structure for connecting an atomizer, including a nasal cannula; the nasal cannula and the atomizer are connected through a storage device, and a one-way valve is provided between the storage device and the atomizer. The one-way valve is used to prevent the liquid medicine mist in the storage device from flowing back into the atomizer. A regulator is provided on the nasal cannula. This atomization processing structure has the advantage of preventing the waste of liquid medicine mist.

[0005] For example, patent CN216703119U discloses a portable atomizer with anti-backflow function, including a first protective cover, a second protective cover, a top cover, a bottom cover, and an atomizing mechanism; the first protective cover is threadedly connected to the second protective cover, and the top cover is snapped onto the first protective cover; the bottom cover is snapped onto the bottom end of the second protective cover, and the atomizing mechanism is located inside the first, second, and bottom protective covers; by setting a snap-fit ​​assembly, when the rubber pad is installed, the contact between the rubber pad and the snap-fit ​​assembly causes the abutment to contract inward under force. At this time, the rubber pad can reach the bottom of the connecting tube under the action of external force, and then the abutment returns to its original position without force, thus limiting the rubber pad. The retaining mechanism limits the rubber pad, improving the assembly efficiency of the nebulizer and preventing the rubber pad from falling off and affecting the seal. However, when the nebulizer stops or when the patient coughs or exhales violently, the airway pressure is transmitted back to the nebulizer chamber, forcing liquid into the air delivery pipe. The air delivery pipe between the main unit and the nebulizer chamber is prone to condensation due to temperature differences. Liquid accumulates in the air delivery channel and can easily backflow to the main unit interface, causing contamination. Some existing nebulizers cannot clean the liquid accumulated in the air delivery channel in time during use, which can easily damage the main unit. Furthermore, cleaning requires stopping the machine and disassembling the air delivery channel, main unit, and nebulizer chamber, which is very inconvenient.

[0006] To address the aforementioned issues, there is an urgent need for innovative designs based on existing atomizers. Summary of the Invention

[0007] The purpose of this invention is to provide a modular anti-backflow contamination atomizer to solve the problem mentioned in the background art that some existing atomizers are prone to liquid accumulation in the gas delivery channel during use, resulting in liquid backflow and contamination of the host interface.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a modular anti-backflow contamination atomizer, comprising a main unit that outputs high-pressure airflow, an anti-backflow pipeline module connected to the air supply end of the main unit, an air supply hose connected through the end of the anti-backflow pipeline module, and an atomizing chamber connected through the air supply hose; the anti-backflow pipeline module includes an air supply pipe connected to the main unit, a one-way valve installed on the air supply pipe, and a rotating bend rotatably connected to the air supply pipe, a three-way valve pipe installed at the lowest point of the rotating bend, and a liquid accumulation chamber installed through the bottom of the three-way valve pipe; the main unit is provided with a transmission mechanism that drives the rotating bend to reciprocate and accelerate the downward flow of the liquid accumulation inside the rotating bend; a damped rotating support frame is mounted on the main unit, a movable groove is opened on the support frame, a mounting seat is movably arranged in the movable groove, the mounting seat is engaged and slidably mounted on the support frame, and the atomizing chamber is installed through the mounting seat; the support frame is provided with a vibration mechanism that intensifies the swing of the atomizing chamber and the air supply hose and assists the downward flow of the liquid accumulation.

[0009] Preferably, the transmission mechanism includes a fixed frame fixedly installed at the bottom of the main unit, a movable support slidably connected through the fixed frame, a transmission support slidably sleeved on the movable support, and a U-shaped frame fixed at one end of the transmission support near the liquid collection tank; the U-shaped frame is sleeved on the outside of the liquid collection tank, and the inner width of the U-shaped frame is greater than the outer diameter of the liquid collection tank.

[0010] Preferably, the main unit has a strip-shaped groove, through which a power rod is slidably connected, and the power rod is fixedly connected to the movable bracket; the upper end of the power rod is in contact with the outer surface of the support frame when it is rotated to a vertical position.

[0011] Preferably, a return spring is elastically connected between the movable bracket and the fixed bracket; a cylinder is fitted and fixed inside the movable bracket, and the output end of the cylinder is fixedly connected to the transmission bracket; the transmission bracket and the U-shaped bracket are respectively arranged below the main unit.

[0012] Preferably, a spring-loaded lever is fixedly installed on the mounting base, and a circular groove is formed on the outer surface of the atomizing chamber. The spring-loaded lever is elastically engaged with the circular groove on the outside of the atomizing chamber. An installation groove is formed on the mounting base, and the atomizing chamber is installed through the installation groove.

[0013] Preferably, the vibration mechanism includes a guide slide rod that is slidably connected through the support frame, the guide slide rod is fixedly connected to the outside of the mounting base, and a vibration spring is elastically connected between the guide slide rod and the support frame.

[0014] Preferably, the liquid accumulation chamber is equipped with an exhaust mechanism that can autonomously release internal high-pressure gas to prevent the liquid from flowing back outward.

[0015] Preferably, the liquid accumulation chamber has two sets of stepped holes symmetrically opened at a higher position on the chamber wall. The stepped holes include sealing holes opened on the inner wall of the liquid accumulation chamber and venting holes opened on the outer wall of the liquid accumulation chamber. A sealing column is fitted and sealed in the sealing hole, and a cylindrical rod is fixedly connected to the sealing column along the axial direction. The cylindrical rod is inserted through the venting hole, and the outer diameter of the cylindrical rod is smaller than the diameter of the venting hole.

[0016] Preferably, a positioning frame is fixedly installed on the inner top surface of the liquid accumulation tank, the sealing column is slidably sleeved on the outside of the positioning frame, and a positioning spring is elastically connected between the inside of the sealing column and the positioning frame.

[0017] Preferably, a vertical support is fixed on the cylindrical rod, the support is located outside the liquid collection tank, and the position of the support corresponds to the position of the U-shaped frame.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: This modular anti-backflow contamination atomizer, by installing an anti-backflow pipe module between the main unit and the atomization chamber, can prevent liquid flowing back from the air delivery hose from flowing back into the main unit interface and causing contamination. Furthermore, a liquid collection tank is provided on the anti-backflow pipe module, which can automatically collect backflowed liquid during atomization without the need for terminal atomization operation, making it convenient and safe to use. Moreover, after the support frame on the main unit is rotated and unfolded, the atomization chamber can be fixed by the mounting base to keep the atomization chamber in an upright position during use, thereby preventing liquid backflow caused by tilting of the atomization chamber.

[0019] The main unit is equipped with a transmission mechanism that drives the rotating bend to reciprocate, accelerating the downward flow of liquid accumulated inside the bend. When the atomizing chamber is installed on the main unit through the anti-backflow pipe module, the rotating support frame causes the U-shaped frame to extend laterally outside the main unit. The U-shaped frame moves and fits around the outside of the liquid accumulation chamber. When backflow of liquid occurs during atomization, the three-way valve is opened to control the liquid to flow into the inside of the liquid accumulation chamber. The U-shaped frame is controlled to move laterally back and forth. The U-shaped frame pushes the liquid accumulation chamber and the rotating bend to swing back and forth. The rotating bend drives the air delivery hose to swing synchronously, accelerating the downward flow of the liquid inside into the liquid accumulation chamber, thus improving the liquid treatment effect.

[0020] The support frame is equipped with a vibration mechanism that intensifies the oscillation of the atomizing chamber and the air delivery hose and assists in the downward flow of accumulated liquid. When the atomizing chamber is installed in the mounting base, some of the oscillation force is transmitted to the mounting base when the air delivery hose oscillates and accelerates the downward flow of accumulated liquid. The mounting base further amplifies the transmitted force through the guide slides on both sides and the vibration spring, intensifying the oscillation of the atomizing chamber and the air delivery hose and improving the effect of treating accumulated liquid.

[0021] When the nebulizer chamber swings on the support frame via the mounting base, it not only helps mix the internal medication and maintains a uniform distribution of the nebulized medication, but also accelerates the downward flow of some of the droplets attached to the inner wall of the nebulizer chamber, reducing nebulization damage and improving the efficiency of nebulization therapy.

[0022] The liquid collection chamber is equipped with an exhaust mechanism that automatically releases internal high-pressure gas to prevent liquid from flowing back out. When the U-shaped frame drives the liquid collection chamber to swing back and forth, the U-shaped frame first contacts and squeezes the uprights outside the liquid collection chamber. The uprights are pushed by the pressure to move the cylindrical rod and the sealing column into the liquid collection chamber, causing the sealing column to separate from the sealing hole. At this time, some of the high-pressure gas that has entered the liquid collection chamber is discharged outward through the sealing hole and the exhaust hole, which prevents the internal pressure of the liquid collection chamber from being too high and causing the collected liquid to flow back outward, and further prevents liquid backflow. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the host structure of the present invention.

[0024] Figure 2This is a schematic diagram of the support frame of the present invention in its unfolded state.

[0025] Figure 3 This is a schematic diagram of the folded state of the support frame of the present invention.

[0026] Figure 4 This is a schematic diagram of the atomizing chamber structure of the present invention.

[0027] Figure 5 This is a schematic diagram of the liquid collection tank structure of the present invention.

[0028] Figure 6 This is a schematic diagram of the mounting base structure of the present invention.

[0029] Figure 7 This is a schematic diagram of the vibration spring structure of the present invention.

[0030] Figure 8 This is a schematic diagram of the fixing frame structure of the present invention.

[0031] Figure 9 This is a schematic diagram of the power rod structure of the present invention.

[0032] Figure 10 This is a schematic diagram of the U-shaped frame structure of the present invention.

[0033] Figure 11 This is a schematic diagram of the pole structure of the present invention.

[0034] Figure 12 This is a schematic diagram of the positioning frame structure of the present invention.

[0035] Figure 13 This is a schematic diagram of the cross-sectional structure of the sealing column of the present invention.

[0036] In the diagram: 1. Main unit; 2. Anti-backflow pipeline module; 201. Gas supply pipe; 202. Rotating bend; 3. Gas supply hose; 4. Atomizing chamber; 5. One-way valve; 6. Three-way valve pipe; 7. Liquid collection chamber; 8. Support frame; 9. Mounting base; 91. Spring clamp; 92. Circular groove; 93. Mounting groove; 10. Moving groove; 11. Guide slide rod; 12. Vibration spring; 13. Fixed frame; 14. Moving bracket; 141. Strip slide groove; 142. Power rod; 143. Return spring; 144. Cylinder; 15. Transmission bracket; 16. U-shaped frame; 17. Step hole; 171. Sealing hole; 172. Exhaust hole; 18. Sealing column; 19. Cylindrical rod; 20. Positioning frame; 21. Positioning spring; 22. Vertical pole. Detailed Implementation

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

[0038] Example 1: Please refer to Figures 1-6 The present invention provides the following technical solution: a modular anti-backflow contamination atomizer, comprising a main unit 1 that outputs high-pressure airflow, an anti-backflow pipeline module 2 connected to the air supply end of the main unit 1, an air supply hose 3 connected through the end of the anti-backflow pipeline module 2, and an atomizing chamber 4 connected through the air supply hose 3; the anti-backflow pipeline module 2 includes an air supply pipe 201 connected to the main unit 1, a one-way valve 5 installed on the air supply pipe 201, and a rotating bend 202 rotatably connected to the air supply pipe 201, with a three-way valve pipe 6 installed at the lowest point of the rotating bend 202. A liquid collection chamber 7 is installed through the bottom of the three-way valve pipe 6. The main unit 1 is equipped with a transmission mechanism that drives the rotating bend 202 to reciprocate and accelerates the downward flow of the liquid inside the rotating bend 202. A support frame 8 is installed on the main unit 1 with damping rotation. A moving groove 10 is opened on the support frame 8. A mounting seat 9 is movably arranged in the moving groove 10. The mounting seat 9 is engaged and slidably installed on the support frame 8. The atomizing chamber 4 is installed through the mounting seat 9. A vibration mechanism is provided on the support frame 8 to amplify the swing of the atomizing chamber 4 and the air delivery hose 3 and assist the downward flow of the liquid.

[0039] Please see Figures 1-5 and Figure 10 The transmission mechanism includes a fixed frame 13 fixedly installed at the bottom of the main unit 1. A movable bracket 14 is slidably connected through the fixed frame 13. A transmission bracket 15 is slidably sleeved on the movable bracket 14. A U-shaped frame 16 is fixed at one end of the transmission bracket 15 near the liquid collection tank 7. The U-shaped frame 16 is sleeved on the outside of the liquid collection tank 7, and the internal width of the U-shaped frame 16 is greater than the external diameter of the liquid collection tank 7.

[0040] Please see Figure 5 , Figure 8 and Figure 9 The main unit 1 has a strip-shaped groove 141 through which a power rod 142 is slidably connected. The power rod 142 is fixedly connected to the movable bracket 14. The upper end of the power rod 142 is in contact with the outer surface of the support frame 8 when it is rotated to a vertical position. A return spring 143 is elastically connected between the movable bracket 14 and the fixed frame 13. A cylinder 144 is fitted and fixed inside the movable bracket 14. The output end of the cylinder 144 is fixedly connected to the transmission bracket 15. The transmission bracket 15 and the U-shaped frame 16 are respectively arranged below the main unit 1.

[0041] Please see Figures 1-3 , Figure 6 and Figure 7 A spring-loaded locking rod 91 is fixedly installed on the mounting base 9. A circular groove 92 is formed on the outer surface of the atomizing chamber 4, and the spring-loaded locking rod 91 is elastically engaged with the circular groove 92 on the outside of the atomizing chamber 4. A mounting groove 93 is formed on the mounting base 9, and the atomizing chamber 4 is installed through the mounting groove 93. The vibration mechanism includes a guide slide rod 11 that is slidably connected through the support frame 8. The guide slide rod 11 is fixedly connected to the outside of the mounting base 9, and a vibration spring 12 is elastically connected between the guide slide rod 11 and the support frame 8.

[0042] The nebulizer mainly consists of three modules: the main unit 1, the anti-backflow pipeline module 2, and the nebulization chamber 4. In use, the control support frame 8 rotates and unfolds from one side of the main unit 1, allowing it to be vertically positioned next to the main unit 1. The anti-backflow pipeline module 2 is then inserted into the main unit 1. The nebulization chamber 4 is then installed through the mounting slot 93 into the mounting base 9. The elastic locking rods 91 on both sides of the mounting base 9 engage with the circular grooves 92 on the outside of the nebulization chamber 4, defining its installation position. The air delivery hose 3 on the other side of the anti-backflow pipeline module 2 is connected to the air inlet at the bottom of the nebulization chamber 4. During use, high-pressure gas is input into the nebulization chamber 4 through the main unit 1 via the anti-backflow pipeline module 2 and the air delivery hose 3, atomizing the medication inside the nebulization chamber 4. The air outlet of the nebulization chamber 4 delivers the gas to the patient's mouth and nose through a hose, mask, etc., completing the nebulization treatment.

[0043] When the support frame 8 rotates and unfolds on the main unit 1, it gradually contacts and presses against the power rod 142 during rotation, causing the power rod 142 to move through the strip groove 141. The power rod 142 drives the lower movable bracket 14 to move synchronously. The movable bracket 14 drives the transmission bracket 15 and the U-shaped frame 16 to move outward synchronously. (When rotating and folding the support frame 8, the support frame 8 removes the pressure on the movable bracket 14. The movable bracket 14 moves and resets under the elastic tension of the reset spring 143. The movable bracket 14 drives the transmission bracket 15 and the U-shaped frame 16 to move and be stored under the main unit 1.) This allows the U-shaped frame 16 to move and fit outside the liquid accumulation tank 7, providing a basis for subsequent processing of the liquid accumulation inside the gas delivery hose 3 and the anti-backflow pipeline module 2.

[0044] During nebulization, when a patient coughs or exhales violently, airway pressure is transmitted back to the nebulizer chamber 4, forcing liquid into the delivery hose 3, causing liquid accumulation in the delivery hose 3. Simultaneously, the delivery hose 3 is affected by ambient temperature, making it prone to condensation. Excessive liquid accumulation can flow into the rotating bend 202. The one-way valve 5 on the rotating bend 202 and the delivery hose 201 prevents backflow of liquid and contamination of the main unit 1, improving its protection. Excessive liquid accumulation in the rotating bend 202 can affect high-pressure gas transmission. Opening the three-way valve 6 can guide the liquid in the rotating bend 202 into the lower liquid collection chamber 7. However, some liquid droplets are small, and combined with the weight of the delivery hose 3... The high-pressure airflow in the middle is not conducive to the rapid drainage of all the accumulated liquid into the liquid collection chamber 7. At this time, the operating cylinder 144 pushes the transmission bracket 15 to move laterally back and forth on the moving bracket 14. The transmission bracket 15 drives the U-shaped frame 16 to move synchronously, so that the U-shaped frame 16 reciprocates to squeeze and push the liquid collection chamber 7. The liquid collection chamber 7 swings back and forth, so that the rotating bend 202 connected to the gas delivery pipe 201 port rotates back and forth. At the same time, when the rotating bend 202 rotates back and forth, it can drive the gas delivery hose 3 to swing back and forth. During the reciprocating swing, the rotating bend 202 and the gas delivery hose 3 can accelerate the downward flow of the accumulated liquid droplets attached to the inner wall, so that the accumulated liquid can quickly flow into the interior of the liquid collection chamber 7, improving the liquid treatment effect.

[0045] During the reciprocating oscillation of the gas delivery hose 3, part of the oscillation force is transmitted to the atomizing chamber 4 and the mounting base 9. The mounting base 9 is connected to the support frame 8 via guide slide rods 11 on both sides and reciprocates. With the assistance of the vibration springs 12 on both sides, the movement amplitude of the mounting base 9 can be amplified, thereby accelerating the oscillation of the atomizing chamber 4 and the gas delivery hose 3. This allows the accumulated droplets attached to the inner wall of the gas delivery hose 3 to flow downwards quickly. At the same time, during the reciprocating vibration of the atomizing chamber 4, the atomized medicine inside is mixed evenly, improving the atomization effect. Furthermore, during the atomization process, the atomized medicine droplets attached to the inner wall of the atomizing chamber 4 can also flow downwards more quickly, reducing the amount of atomized medicine lost.

[0046] Example 2: Please refer to Figures 11-13 Based on Embodiment 1, an exhaust mechanism is also disclosed, the specific structure of which is as follows: The liquid collection tank 7 is equipped with an exhaust mechanism that autonomously discharges internal high-pressure gas to prevent the liquid from flowing back outward. Two sets of stepped holes 17 are symmetrically opened at a higher position on the tank wall of the liquid collection tank 7. The stepped holes 17 include sealing holes 171 opened on the inner wall of the liquid collection tank 7 and exhaust holes 172 opened on the outer wall of the liquid collection tank 7. A sealing post 18 is fitted and sealed in the sealing hole 171. A cylindrical rod 19 is fixedly connected to the sealing post 18 along the axial direction. The cylindrical rod 19 is inserted through the exhaust hole 172, and the outer diameter of the cylindrical rod 19 is smaller than the diameter of the exhaust hole 172.

[0047] Please see Figure 10and Figure 11 A positioning frame 20 is fixedly installed on the inner top surface of the liquid collection tank 7. The sealing column 18 is slidably sleeved on the outside of the positioning frame 20, and a positioning spring 21 is elastically connected between the inside of the sealing column 18 and the positioning frame 20. A vertical pole 22 is fixed on the cylindrical rod 19. The pole 22 is located outside the liquid collection tank 7, and the position of the pole 22 corresponds to the position of the U-shaped frame 16.

[0048] When the three-way valve pipe 6 is opened to control the flow of accumulated liquid into the liquid collection chamber 7, some of the high-pressure gas in the gas supply pipe 201 will enter the liquid collection chamber 7. If the gas pressure inside the liquid collection chamber 7 is too high, it will cause the collected liquid inside to flow back out. Therefore, it is necessary to vent the liquid collection chamber 7. When the U-shaped frame 16 reciprocates and squeezes the liquid collection chamber 7, the U-shaped frame 16 first contacts and squeezes the upright 22 outside the liquid collection chamber 7. When the upright 22 is squeezed, it moves closer to the liquid collection chamber 7, and it drives the cylindrical rod 19 and the sealing column 18 into the liquid collection chamber 7. At this time, the sealing column 18 moves and separates from the sealing hole 171. The high-pressure gas inside the liquid collection chamber 7 is discharged outward through the gap between the cylindrical rod 19, the sealing hole 171, and the vent hole 172, thus achieving the function of venting the liquid collection chamber 7 and preventing the liquid accumulated inside the liquid collection chamber 7 from flowing back outward under high pressure.

[0049] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" 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. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0050] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 modular anti-backflow contamination atomizer, comprising a main unit (1) that outputs high-pressure airflow, characterized in that: The main unit (1) is connected to an anti-backflow pipe module (2) at the gas supply end, and an air supply hose (3) is connected through the end of the anti-backflow pipe module (2), and an atomizing chamber (4) is connected through the air supply hose (3). The anti-backflow pipeline module (2) includes an air supply pipe (201) connected to the host (1), a one-way valve (5) is installed on the air supply pipe (201), and a rotating bend (202) is rotatably connected to the air supply pipe (201). A three-way valve pipe (6) is installed at the lowest point of the rotating bend (202), and a liquid collection tank (7) is installed through the bottom of the three-way valve pipe (6). The host (1) is equipped with a transmission mechanism that drives the rotating bend (202) to rotate back and forth to accelerate the downward flow of the liquid inside the rotating bend (202). The main unit (1) is equipped with a damped rotating support frame (8), and a moving groove (10) is provided on the support frame (8). A mounting seat (9) is movably arranged in the moving groove (10). The mounting seat (9) is engaged and slidably installed on the support frame (8), and the atomizing chamber (4) is installed through the mounting seat (9). The support frame (8) is equipped with a vibration mechanism that amplifies the swing of the atomizing chamber (4) and the air delivery hose (3) and assists the downward flow of accumulated liquid.

2. The modular anti-backflow contamination atomizer according to claim 1, characterized in that: The transmission mechanism includes a fixed frame (13) fixedly installed at the bottom of the host (1), a movable bracket (14) is slidably connected through the fixed frame (13), a transmission bracket (15) is slidably sleeved on the movable bracket (14), and a U-shaped frame (16) is fixed at one end of the transmission bracket (15) near the liquid collection tank (7). The U-shaped frame (16) is fitted onto the outside of the liquid collection tank (7), and the internal width of the U-shaped frame (16) is greater than the external diameter of the liquid collection tank (7).

3. A modular anti-backflow contamination atomizer according to claim 2, characterized in that: The host (1) is provided with a strip groove (141), and a power rod (142) is slidably connected through the strip groove (141). The power rod (142) is fixedly connected to the movable bracket (14). The upper end of the power rod (142) is in contact with the outer surface of the support frame (8) which has been rotated to a vertical position.

4. A modular anti-backflow contamination atomizer according to claim 3, characterized in that: A return spring (143) is elastically connected between the movable support (14) and the fixed frame (13). A cylinder (144) is fitted and fixed inside the movable bracket (14), and the output end of the cylinder (144) is fixedly connected to the transmission bracket (15); The transmission bracket (15) and the U-shaped bracket (16) are respectively set below the main unit (1).

5. A modular anti-backflow contamination atomizer according to claim 1, characterized in that: A spring-loaded lever (91) is fixedly installed on the mounting base (9), and a circular groove (92) is provided on the outer surface of the atomizing chamber (4). The spring-loaded lever (91) is elastically engaged with the circular groove (92) on the outside of the atomizing chamber (4). The mounting base (9) has a mounting groove (93) and the atomizing chamber (4) is installed through the mounting groove (93).

6. A modular anti-backflow contamination atomizer according to claim 5, characterized in that: The vibration mechanism includes a guide slide rod (11) that is slidably connected through the support frame (8). The guide slide rod (11) is fixedly connected to the outside of the mounting base (9). A vibration spring (12) is elastically connected between the guide slide rod (11) and the support frame (8).

7. A modular anti-backflow contamination atomizer according to claim 1, characterized in that: The liquid accumulation chamber (7) is equipped with an exhaust mechanism that can automatically release internal high-pressure gas to prevent the liquid from flowing back outward.

8. A modular anti-backflow contamination atomizer according to claim 7, characterized in that: The liquid collection tank (7) is provided with two sets of stepped holes (17) symmetrically located at the higher part of the tank wall. The stepped holes (17) include a sealing hole (171) opened on the inner wall of the liquid collection tank (7) and an exhaust hole (172) opened on the outer wall of the liquid collection tank (7). A sealing column (18) is fitted and sealed in the sealing hole (171). A cylindrical rod (19) is fixedly connected to the sealing column (18) along the axial direction. The cylindrical rod (19) is inserted in the vent hole (172), and the outer diameter of the cylindrical rod (19) is smaller than the diameter of the vent hole (172).

9. A modular anti-backflow contamination atomizer according to claim 8, characterized in that: The inner top surface of the liquid collection tank (7) is fixedly installed with a positioning frame (20), and the sealing column (18) is slidably sleeved on the outside of the positioning frame (20), and a positioning spring (21) is elastically connected between the inside of the sealing column (18) and the positioning frame (20).

10. A modular anti-backflow contamination atomizer according to claim 8, characterized in that: A vertical pole (22) is fixed on the cylindrical rod (19). The pole (22) is located outside the liquid collection tank (7), and the position of the pole (22) corresponds to the position of the U-shaped frame (16).

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