A handheld nebulizer

Abstract

The application discloses a handheld atomizer, which comprises an atomizing body and an atomizing assembly which is detachably installed on the atomizing body, and a channel for liquid medicine flow is formed between the atomizing assembly and a liquid medicine tank, liquid medicine enters the atomizing assembly, atomized liquid medicine is produced through ultrasonic atomizing sheets, and finally the atomized liquid medicine is guided into the oral cavity of a patient through a spraying pipe, so that the purpose of treating respiratory diseases is achieved; when the ultrasonic atomizing sheets are replaced, the atomizing assembly is first separated from the atomizing body, then a clamping seat and a base are disassembled, and the ultrasonic atomizing sheets are replaced, the handheld atomizer has simple structure and is convenient to disassemble, the replacement of the ultrasonic atomizing sheets can be rapidly performed, atomized liquid medicine with different particle sizes can be produced according to the needs of patients, the applicability of the atomizer is improved, and the medical cost of the patients is reduced.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, in particular to a handheld atomizer. Background Art

[0002] A handheld nebulizer is an important device used for bronchial disinfection and treatment. It mainly converts liquid medicine into mist particles and delivers them into the diseased part of the human body through a catheter. Since the liquid medicine can directly reach the diseased part and is easily absorbed, the handheld nebulizer is an important therapeutic device for treating respiratory system diseases such as bronchitis and asthma.

[0003] When a handheld nebulizer is working, it mainly relies on the ultrasonic atomizer to atomize the medicine liquid. The aperture of the ultrasonic atomizer is very small, only between 0.5μm and 5μm, and the particles of the medicine liquid can easily clog it. Once clogged, the nebulizer will not work and can only be sent back to the manufacturer or repaired or replaced by the after-sales service point. The cost of use for consumers is high and the after-sales cost of the manufacturer will also be high.

[0004] Secondly, after the medicine liquid is atomized, when the atomized particles are smaller than 2.5μm, the medicine liquid is easily absorbed by the lower respiratory tract. When the atomized particles are larger than 2.5μm, the medicine liquid is easily absorbed by the upper respiratory tract. In order to quickly and effectively relieve the patient's symptoms, at least two nebulizers with different apertures are required. However, ultrasonic atomizer generators are now fixedly installed in handheld nebulizers, which are not convenient for disassembly and replacement. Therefore, multiple nebulizers that can produce different atomizations are required for alternating use, which greatly increases the cost of use for consumers. In order to solve the above defects, it is urgently necessary to design a handheld nebulizer with a quick-replacement atomization component. Summary of the Invention

[0005] In response to the problems existing in the prior art, the present invention provides a handheld atomizer that can quickly replace the ultrasonic atomizer generator, generate atomized particles of different particle sizes according to different ultrasonic atomizer generators, and reduce the consumer's usage cost.

[0006] The present invention is achieved through the following technical solutions:

[0007] A handheld atomizer comprises an atomizing body and an atomizing assembly, wherein the atomizing assembly can be detachably mounted on the atomizing body and the atomizing assembly is connected to a spray pipe;

[0008] The atomization assembly includes a base, an ultrasonic atomization sheet and a holder. A groove is provided on one side of the base, the ultrasonic atomization sheet is provided in the groove, the holder is buckled at the end of the groove, and the spray pipe is provided on the other side of the base.

[0009] The atomizer body includes a shell, a medicine liquid tank and a circuit board arranged inside the shell. A mounting hole is provided on the front of the shell. The atomizer assembly is mounted in the mounting hole through a base snap-on connection, and the atomizer assembly is connected to the medicine liquid tank. The medicine liquid in the medicine liquid tank enters the atomizer assembly, and the misted medicine liquid generated by the ultrasonic atomizer is discharged through the spray pipe. The circuit board is connected to the ultrasonic atomizer.

[0010] Preferably, the ultrasonic atomizing sheet is arranged in a fixing seat, and the fixing seat is arranged in a groove of the base;

[0011] A liquid medicine channel is provided at the center of the fixing seat. One end of the liquid medicine channel is communicated with the spray pipe through the base, and the other end is communicated with the liquid medicine tank through the clamping seat.

[0012] Preferably, a card slot is provided on the outer wall of the base, the card slot includes an introduction section and a clamping section, the introduction section is communicated with the bottom surface of the base, the clamping section is a U-shaped groove structure, the open end of the clamping section is located in the rotation direction of the base and is communicated with the introduction section;

[0013] The mounting hole of the shell is a groove arranged on the front side of the shell, and a clamping block is arranged on the inner wall of the groove. The clamping block enters the clamping groove from the introduction section, and the rotating base can make the clamping block be fitted in the clamping section of the clamping groove.

[0014] Preferably, a limiting block is provided on the inner wall of the shell mounting hole, and a limiting groove is provided on the outer wall of the base. The limiting groove is connected to the bottom surface of the base, and the width of the limiting groove is greater than the width of the limiting block. When the base is engaged with the shell, the limiting block is located in the limiting groove, and the end of the limiting block abuts against the side wall of the limiting groove.

[0015] Preferably, a plurality of hook holes are provided on the side wall of the base groove, and a plurality of hooks are correspondingly provided on one side of the base. The base is installed at the end of the groove, and the hooks extend from the inner wall of the groove to engage with the hook holes.

[0016] Preferably, a positioning hole is provided on one side of the base, and the end of the spray tube is detachably mounted in the positioning hole and can rotate synchronously with the base.

[0017] Preferably, the housing of the atomizing body includes a front housing, a main housing and a rear housing, and the front housing and the rear housing are respectively arranged on both sides of the main housing;

[0018] The mounting hole of the base is arranged on the front shell, the circuit board is arranged between the front shell and the main shell, and the front shell is fixedly connected to the main shell; the liquid medicine tank is arranged between the main shell and the rear shell, and the rear shell is detachably connected to the main shell.

[0019] Preferably, a through hole is provided on the main shell, the liquid outlet of the liquid medicine tank is connected to one end of the through hole, and the other end of the through hole is connected to the circular hole in the center of the base;

[0020] The mounting hole is located at one end inside the front shell and is provided with a base. An electrode column is provided on the base, and the electrode column is connected to the circuit board. A circular hole is provided in the center of the base, and the circular hole of the base is connected to the other end of the through hole. The liquid medicine in the medicine tank enters the atomization assembly through the through hole of the main shell and the circular hole of the base in turn.

[0021] Preferably, a nozzle groove is further provided on one side of the main shell body close to the rear shell body, and when the handheld atomizer is in an idle state, the spray pipe is arranged in the nozzle groove.

[0022] Preferably, a conduit is further provided between the base and the main shell, one end of the conduit is communicated with the circular hole of the base, and the other end of the conduit passes through the passage of the main shell and is communicated with the outlet of the liquid medicine tank.

[0023] Compared with the prior art, the present invention has the following beneficial technical effects:

[0024] The present invention provides a handheld nebulizer, in which an atomizing assembly is snap-fitted and mounted on the housing of the atomizing body. A channel for the flow of liquid medicine is formed between the atomizing assembly and the liquid medicine tank. The liquid medicine enters the atomizing assembly, produces a mist-like liquid medicine through an ultrasonic atomizing sheet, and is finally introduced into the patient's oral cavity through a spray tube, thereby achieving the purpose of treating respiratory diseases. At the same time, when the atomizer needs to produce a mist-like liquid medicine of different particle sizes, the atomizing assembly is separated from the atomizing body and replaced with an atomizing assembly equipped with a different type of ultrasonic atomizing sheet. The handheld nebulizer has a simple structure and is easy to disassemble. The atomizing assembly can be quickly replaced. Different types of ultrasonic atomizing sheets can be installed in different atomizing assemblies to generate a mist-like liquid medicine of different particle sizes according to the needs of the patient, thereby improving the applicability of the nebulizer and reducing the patient's medical costs.

[0025] Furthermore, the ultrasonic atomizer piece is installed in the fixing seat, and then the fixing seat is installed in the groove of the base, so that the positioning of the ultrasonic atomizer piece is achieved, and replacement is more convenient.

[0026] Furthermore, the base and the shell are rotatably fastened via a card slot and a card block, resulting in a simple structure and easy disassembly.

[0027] Furthermore, positioning mechanisms are provided on the base and the shell to position the rotational state of the base, thereby enabling the base and the shell to be precisely positioned.

[0028] Furthermore, the base and the card holder are buckled and connected to achieve a detachable connection between the base and the card holder, so that the fixing seat can be taken out of the base and the ultrasonic atomizer piece can be replaced.

[0029] Furthermore, when disassembling and assembling the atomizing assembly, rotating the spray pipe can drive the base to rotate synchronously, making disassembling and assembling the atomizing assembly more convenient and labor-saving.

[0030] Furthermore, a nozzle groove is provided in the shell. When the atomizer is in an idle state, the spray pipe is placed in the nozzle groove, thereby reducing the volume of the atomizer in the idle state. Moreover, the spray pipe is located inside the shell, thereby preventing dust from contaminating the spray pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is an appearance diagram of the handheld atomizer of the present invention in use;

[0032] Figure 2 Schematic diagram of the structure of the atomizing assembly of the present invention;

[0033] Figure 3 It is a structural schematic diagram of the atomizing body of the present invention;

[0034] Figure 4 An exploded view of the handheld atomizer of the present invention;

[0035] Figure 5 An exploded view of the atomizing assembly of the present invention;

[0036] Figure 6 is a cross-sectional view of the clamping block of the present invention;

[0037] Figure 7 This is the front structure of the atomizer body exploded view of the present invention;

[0038] Figure 8 This is the back structure of the atomizer body exploded view of the present invention;

[0039] Figure 9 An exploded view of the liquid medicine tank of the present invention;

[0040] Figure 10 This is a schematic diagram of the interior of the front housing of the present invention;

[0041] Figure 11 This is a back view of the housing of the present invention;

[0042] Figure 12 A cross-sectional view of the housing key position in the present invention;

[0043] Figure 13 Schematic diagram of the interior of the handheld atomizer of the present invention in the stored state.

[0044] In the figure: 1. atomizer assembly; 2. atomizer body; 11. spray tube; 12. base; 13. ultrasonic atomizer; 14. fixing seat; 15. card seat; 21. base; 22. battery; 23. circuit board; 25. conduit; 26. main shell; 27. liquid medicine tank; 29. ​​rear shell; 30. front shell; 101. card slot; 102. limit slot; 103. hook hole; 141. annular groove; 151. hook; 201. card block; 202. limit block; 261. limit assembly; 262. medicine tank slot; 263. nozzle slot; 264. spring; 265. cover plate; 266. positioning key; 271. front box; 272. rear box; 273. sealing cover; 292. card hole. DETAILED DESCRIPTION

[0045] The present invention will be further described in detail below with reference to the accompanying drawings, which are intended to explain rather than limit the present invention.

[0046] See Figure 1-11 A handheld atomizer includes an atomizing body 2 and an atomizing assembly 1. The atomizing assembly 1 can be detachably mounted on the atomizing body 2. The atomizing assembly 1 is connected to a spray pipe 11.

[0047] See Figure 2 and 4 -5, the atomization assembly 1 includes a base 12, an ultrasonic atomization sheet 13, a fixing seat 14 and a clamping seat 15. The ultrasonic atomization sheet 13 is installed on the fixing seat 14. A groove for installing the fixing seat 14 is provided on one side of the base 12. The clamping seat 15 is buckled at the end of the groove, and the spray tube 11 is provided on the other side of the base.

[0048] See Figure 3 and 7 The atomizing body 2 includes a shell, a liquid medicine tank 27 and a circuit board 23 arranged inside the shell. A mounting hole is provided on the front of the shell. The atomizing assembly 1 is mounted in the mounting hole through the base 12. The atomizing assembly 1 is connected to the liquid medicine tank 27. The liquid medicine in the liquid medicine tank 27 enters the atomizing assembly and is guided out through the spray pipe 11 by the mist liquid generated by the ultrasonic atomizing piece 13. The circuit board is connected to the ultrasonic atomizing piece 13 for controlling the operation of the ultrasonic atomizing piece 13. Figure 4 The dotted line in the figure is the flow path of the liquid medicine.

[0049] The present invention provides a handheld nebulizer, in which an atomizer assembly 1 is snap-fitted and installed on the shell of an atomizer body 2. A channel for the flow of medicine is formed between the atomizer assembly 1 and the medicine tank. The medicine enters the atomizer assembly, and a mist-like medicine liquid is produced through the ultrasonic atomizer piece 13, and finally introduced into the patient's mouth through the spray tube, thereby achieving the purpose of treating respiratory diseases. At the same time, when the nebulizer needs to produce a mist-like medicine liquid with different particle sizes, the atomizer assembly 1 is separated from the atomizer body 2, and the atomizer assembly equipped with a different model of ultrasonic atomizer piece 13 is replaced.

[0050] When the ultrasonic atomizer piece 13 in the atomizer assembly is damaged and needs to be replaced, the holder 15 and the base are disassembled, the fixing seat is taken out, and the ultrasonic atomizer piece 13 is replaced. The handheld atomizer has a simple structure and is easy to disassemble. The ultrasonic atomizer piece can be quickly replaced and a mist liquid of different particle sizes can be generated according to the needs of the patient, thereby improving the applicability of the atomizer and reducing the medical costs of the patient.

[0051] A card slot 101 is provided on the outer wall of the base 12, and the card slot includes an introduction section and a clamping section. The introduction section is connected to the bottom surface of the base, and the clamping section is a U-shaped groove mechanism. The open end of the clamping section is located in the rotation direction of the base and is connected to the introduction section; the mounting hole of the shell is a groove provided on the front side of the shell, and a clamping block 201 is provided on the inner wall of the groove, and the clamping block can be fitted in the clamping section of the card slot 101.

[0052] During installation, align the mouth of the introduction section of the card slot 101 with the card block 201, then install the base in the installation of the shell, and the card block enters the introduction section. Finally, rotate the base to align the card section with the card block 201, that is, the card block enters the card section of the card slot 101, completing the buckling of the atomizer assembly 1 and the atomizer body 2.

[0053] Furthermore, in order to ensure the firmness of the buckling, a plurality of slots are evenly distributed on the circumference of the outer wall of the base 12, and a plurality of corresponding blocks are provided on the inner wall of the housing mounting hole.

[0054] At the same time, a limiting block 202 is provided on the inner wall of the shell mounting hole, and a limiting groove 102 is provided on the outer wall of the base 12. The limiting groove 102 is connected to the bottom surface of the base, and the width of the limiting groove 102 is greater than the width of the limiting block. When the base is installed, the limiting groove 102 is opposite to the limiting block 202. The base is installed in the shell, and the limiting block 202 is located in the limiting groove 102. The base is rotated so that the end of the limiting block 202 abuts against the side wall of the limiting groove 102, which means that the card block is installed in the card slot, thereby realizing rapid positioning of the atomizer assembly 1 and the atomizer body 2 and improving the disassembly and assembly efficiency.

[0055] In actual use, one atomizer body is equipped with multiple different atomizer components, each of which is installed with ultrasonic atomizer sheets of different models. Users can replace and install the atomizer components according to actual needs.

[0056] In another embodiment, a thread is provided on the outer wall of the base 12, and an internal thread is provided in the mounting hole of the shell. The base and the shell are connected by threads, and a detachable connection between the atomizer assembly 1 and the atomizer body 2 can also be achieved.

[0057] Again, in another embodiment, the base 12 and the mounting hole of the shell are interference fit to achieve a detachable connection between the atomizer assembly 1 and the atomizer body 2 .

[0058] The spray tube 11 is a flat structure. For example, the cross-section of the spray tube is elliptical or polygonal. A positioning hole is provided on the top surface of the base 12. The inlet end of the spray tube is fitted into the positioning hole. When the base is rotated, the spray tube is held and rotated to realize the disassembly and assembly of the base and the shell, making the disassembly and assembly of the atomizing assembly 1 and the atomizing body 2 more labor-saving and convenient.

[0059] A partition is provided in the middle of the base 12, and a mist liquid passage hole is provided in the center of the partition. The positioning hole is provided on one side of the partition, and the other side of the partition is a groove. The fixing seat 14 is installed in the groove, and a plurality of hook holes 103 are provided on the side wall of the groove. A plurality of hooks 151 are provided on one side of the said base 15, and the base 15 is installed on the bottom surface of the base. The hooks 151 extend from the inner wall of the groove and engage with the hook holes, and the fixing seat 14 is pressed into the groove of the base. The ultrasonic atomizer is facing the liquid passage hole of the partition. The fixing seat 14 is located on one side of the base 15 and is provided with a liquid medicine tube. A through hole is provided in the center of the base 15. The liquid medicine tube is located in the through hole of the base and extends to the other side of the base 15 to communicate with the outlet of the liquid medicine tank 27.

[0060] A sealing groove is also provided on the outer wall of the base, and a sealing ring is provided in the sealing groove. When the base is inserted into the mounting hole of the shell, the sealing ring seals the base and the mounting hole to prevent the mist liquid from flowing out of the gap between the base and the shell and causing waste of liquid medicine.

[0061] Furthermore, in order to facilitate the positioning of the fixing seat 14, a plurality of positioning columns are provided on the inner wall of the groove of the base 12, and a corresponding positioning groove is provided on the outer wall of the fixing seat 14. The fixing seat 14 is installed in the base, and the positioning columns are located in the positioning grooves of the fixing seat 14.

[0062] See Figure 6 A medicine channel through which the medicine passes is provided at the center of the fixing seat 14. The medicine channel is provided along the axial direction of the fixing seat and is connected to the medicine tube. An annular groove 141 is provided on the inner wall of the medicine channel. The edge of the ultrasonic atomizing piece 13 is engaged with the annular groove and divides the medicine channel into two ends. The liquid medicine enters from the medicine tube, then enters the medicine channel, passes through the ultrasonic atomizing piece 13 to generate atomized medicine, and enters the medicine channel on the other side of the ultrasonic atomizing piece 13.

[0063] The fixing base 14 is made of a flexible material, preferably food-grade silicone. A through hole is provided in the annular groove 141, and two wires of the ultrasonic atomizing piece 13 pass through the through hole. Two electrode posts are symmetrically provided on the card base 15, and the two wires are respectively connected to the two electrode posts on the card base 15.

[0064] See Figure 8 The shell of the atomizing body 2 includes a front shell 30, a main shell 26 and a rear shell 29. The front shell 30 and the rear shell 29 are respectively arranged on both sides of the main shell 26, that is, the front or back.

[0065] A accommodating cavity is provided on the back of the front shell 30, and the circuit board 23 is connected to the battery 22. The circuit board 23 and the battery 22 are arranged in the accommodating cavity of the front shell. The circuit board is connected to the front shell 30 by bolts, and the battery is clamped in the accommodating cavity, which facilitates the maintenance and replacement of the battery. A button is provided on the circuit board, and the end of the button passes through the front shell 30. The operation of the ultrasonic atomizer 13 is controlled through the circuit board by driving the button.

[0066] A screw column is set in the front shell 30, and the front shell is connected to the main shell by bolts. A sealing ring is also set between the contact surfaces of the main shell and the front shell to prevent liquid from entering the shell from the outside and causing damage to the circuit board and battery.

[0067] See Figure 10 The mounting hole of the atomizer assembly is located on the front shell 30. A base 21 is also provided in the accommodating cavity of the front shell 30. The base is a circular groove structure. The base 21 is installed at the end of the mounting hole. Two spring pins are fixedly provided on the base. The fixed ends of the spring pins are installed on the base 21 through a sealing ring. The fixed ends of the two spring pins are connected to the circuit board. The positions of the two spring pins correspond to the positions of the two electrode columns of the card seat 15; a circular hole is provided in the center of the base 21, and the liquid medicine enters the fixing seat 14 through the circular hole for atomization.

[0068] The atomizer assembly is mounted on the atomizer body, and the two electrode posts of the holder 15 are in contact with the ends of the two spring pins respectively, and compress the ends of the spring pins to ensure the stability of the electrical connection.

[0069] A mounting hole is provided on the main shell 26, and a conduit 25 is provided in the mounting hole. One end of the conduit 25 is connected to the medicine liquid tank, and the other end of the conduit is connected to the circular hole of the base 21. The medicine in the medicine liquid tank passes through the conduit 25 and then enters the atomization assembly through the circular hole of the base 21 for atomization.

[0070] The conduit 25 is made of rubber material and is installed in the housing. Both ends of the conduit are under pressure so that both ends of the conduit are sealedly connected to the base 21 and the liquid medicine tank respectively to prevent liquid medicine from leaking.

[0071] See Figure 13 A medicine box groove 262 is provided on the upper part of the back side of the main shell, and the liquid medicine tank 27 is installed in the medicine box groove 262. A nozzle groove 263 for accommodating the spray tube 11 is provided on the lower part of the back side of the main shell. When the handheld atomizer is in an idle state, the spray tube 11 is disassembled from the atomizing assembly and the spray tube 11 is placed in the nozzle groove 263, which reduces the volume of the handheld atomizer in an idle state, and the spray tube is inside the shell to prevent dust from contaminating the spray tube.

[0072] See Figure 9 The medicine liquid tank 27 includes a front box body 271, a rear box body 273 and a sealing cover 273. The opening sides of the front box body 271 and the rear box body 273 are fused by ultrasonic welding. An outlet is provided on the front shell body, and a medicine liquid inlet is provided on the rear shell body. The sealing cover is made of elastic rubber material, and a connecting rib is provided on the sealing cover 273. A card slot is provided at the bottom of the medicine liquid tank 27, and the top of the connecting rib is provided in the card slot. The sealing cover is snapped onto the liquid inlet of the medicine liquid tank 27.

[0073] See Figure 11 The rear shell 29 is snap-fitted with the main shell 26. A slide groove is provided on the end face of the back of the main shell, and a slide bar is provided on the edge of the top surface of the rear shell. The slide bar can be fitted in the slide groove and can move. Buckles are also provided on both sides of the inner wall of the rear shell, and a slot is provided on the back of the main shell. When the slide bar of the rear shell 29 moves in the slide groove, the buckle can slide into the slot to realize the snap-fitting of the rear shell 29 with the main shell. In order to prevent the rear shell from separating from the main shell, a positioning mechanism is also provided on the shell.

[0074] See Figure 12 The positioning mechanism includes a spring 264 , a cover plate 265 , a positioning key 266 and a card hole 292 .

[0075] Among them, the card hole 292 is set at the upper part of the rear shell, and the upper part of the main shell 26 is provided with a mounting hole for the spring 264. The mounting hole is a through hole, and the entrance of the mounting hole is larger than the size of the outlet. The positioning key 266 piston is set in the mounting hole, and the end of the positioning key can extend out of the outlet end of the mounting hole. The spring 264 is located on one side of the positioning key 266 and is located in the mounting hole. The cover plate 265 is fixedly set at the entrance end of the mounting hole to encapsulate the spring and the positioning key in the mounting hole.

[0076] During the installation of the rear shell, press the positioning key down to retract it into the installation hole, then install the slide bar of the rear shell into the slide groove of the main shell, push the rear shell toward the upper part of the main shell, and the buckle of the rear shell will engage with the slot. At the same time, the card hole 292 is aligned with the positioning key, and the positioning key is stuck in the card hole 292 under the action of elastic force, so that the rear shell and the main shell are positioned and locked.

[0077] When taking out the spray tube 11, press down the positioning key 266, then slide the rear housing downward to separate the buckle from the slot, take out the rear housing, and then you can take out the spray tube from the nozzle slot.

[0078] The above content is only for explaining the technical idea of ​​the present invention and cannot be used to limit the protection scope of the present invention. Any changes made on the basis of the technical solution in accordance with the technical idea proposed by the present invention shall fall within the protection scope of the claims of the present invention.

Claims

1. A handheld atomizer, characterized in that: It comprises an atomizing body (2) and an atomizing assembly (1), wherein the atomizing assembly (1) can be detachably mounted on the atomizing body (2), and the atomizing assembly (1) is connected to a spray pipe (11); The atomizing assembly (1) comprises a base (12), an ultrasonic atomizing sheet (13) and a holder (15); a groove is provided on one side of the base (12); the ultrasonic atomizing sheet (13) is provided in the groove; the holder (15) is buckled at the end of the groove; and the spray pipe (11) is provided on the other side of the base; The atomizing body (2) includes a shell, a liquid medicine tank (27) and a circuit board (23) arranged inside the shell. A mounting hole is provided on the front of the shell. The atomizing assembly (1) is fastened and mounted in the mounting hole through the base (12). The atomizing assembly (1) is connected to the liquid medicine tank (27). The liquid medicine in the liquid medicine tank (27) enters the atomizing assembly and is discharged through the spray pipe (11) by the ultrasonic atomizing sheet (13). The circuit board is connected to the ultrasonic atomizing sheet (13). The ultrasonic atomizing sheet (13) is arranged in a fixing seat (14), and the fixing seat (14) is arranged in a groove of the base (12); a liquid medicine channel is provided at the center of the fixing seat (14), one end of the liquid medicine channel is connected to the spray pipe (11) through the base (12), and the other end is connected to the liquid medicine tank through the holder (15); An annular groove is provided on the inner wall of the liquid medicine channel, and the edge of the ultrasonic atomizer is engaged with the annular groove, dividing the liquid medicine channel into two ends. Liquid medicine enters from the liquid medicine pipe, then enters the liquid medicine channel, passes through the ultrasonic atomizer to generate atomized liquid medicine, and then enters the liquid medicine channel on the other side of the ultrasonic atomizer; A card slot (101) is provided on the outer wall of the base (12), the card slot comprising an introduction section and a card connection section, the introduction section being in communication with the bottom surface of the base (12), the card connection section being a U-shaped slot structure, the open end of the card connection section being located in the rotation direction of the base and in communication with the introduction section; The mounting hole of the housing is a groove provided on the front surface of the housing, and a clamping block (201) is provided on the inner wall of the groove. The clamping block enters the clamping groove from the introduction section, and the rotating base can enable the clamping block to be fitted in the clamping section of the clamping groove (101); A limiting block (202) is provided on the inner wall of the housing mounting hole, and a limiting groove (102) is provided on the outer wall of the base (12). The limiting groove (102) is communicated with the bottom surface of the base, and the width of the limiting groove (102) is greater than the width of the limiting block. When the base (12) is engaged with the housing, the limiting block (202) is located in the limiting groove, and the end of the limiting block (202) abuts against the side wall of the limiting groove (102). A plurality of hook holes (103) are provided on the side wall of the base groove, and a plurality of hooks (151) are correspondingly provided on one side of the base (15). The base (15) is installed at the end of the groove, and the hooks (151) extend from the inner wall of the groove and engage with the hook holes (103); The shell of the atomizing body (2) comprises a front shell (30), a main shell (26) and a rear shell (29), wherein the front shell (30) and the rear shell (29) are respectively arranged on both sides of the main shell (26); The mounting hole of the base (12) is provided on the front shell (30), the circuit board is provided between the front shell (30) and the main shell (26), and the front shell (30) is fixedly connected to the main shell; the liquid medicine tank (27) is provided between the main shell and the rear shell, and the rear shell (29) is detachably connected to the main shell (26); a nozzle groove (263) is further provided on a side of the main shell (26) close to the rear shell, and when the handheld atomizer is in an idle state, the spray pipe (11) is provided in the nozzle groove (263).

2. The handheld atomizer according to claim 1, characterized in that: A positioning hole is provided on one side of the base (12), and the end of the spray tube (11) is detachably mounted in the positioning hole and can rotate synchronously with the base.

3. The handheld atomizer according to claim 1, characterized in that: The main housing (26) is provided with a through hole, the liquid outlet of the liquid medicine tank is connected to one end of the through hole, and the other end of the through hole is connected to the circular hole in the center of the base (21); The mounting hole is located at one end of the interior of the front shell (30), and a base (21) is provided on the base (21). An electrode column is provided on the base (21), and the electrode column is connected to the circuit board. A circular hole is provided at the center of the base (21), and the circular hole of the base (21) is connected to the other end of the through hole. The liquid medicine in the medicine tank (27) enters the atomization assembly through the through hole of the main shell and the circular hole of the base in sequence.

4. The handheld atomizer according to claim 3, characterized in that: A conduit (25) is further provided between the base (21) and the main housing. One end of the conduit (25) is communicated with the circular hole of the base (21), and the other end of the conduit (25) passes through the main housing and is communicated with the outlet of the liquid medicine tank (27).

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