Nasal cavity medicine sprayer

Abstract

The invention relates to the technical field of medical instruments, in particular to a nasal cavity medicine sprayer which comprises a handheld sleeve, a protective shell arranged in the handheld sleeve and a connector arranged on the protective shell, an outer conveying pipe is arranged on the connector and used for conveying normal saline in the protective shell, and a cotton swab head is arranged on the end face of the outer conveying pipe in a sleeving mode and used for fixing the end face of the outer conveying pipe. The mist spray head is arranged on the end face of the inner conveying pipe and movably embedded in the inner conveying pipe, the liquid medicine switching unit is arranged in the protective shell and can repeatedly conduct wiping and removing, and the protective removing assembly is arranged on the cotton swab head and can protect the cotton swab head. According to the device, switching between liquid medicine and normal saline can be achieved, when the interior of the nasal cavity is wiped, the normal saline can be conveyed to the cotton swab head through the outer conveying pipe, the cotton swab head is kept in a wet state, switching can be conducted, the liquid medicine is sprayed into the nasal cavity through the mist spray head through the inner conveying pipe, and therefore the device has more functions.

Description

Technical Field

[0001] The present invention relates to the technical field of medical instruments, in particular to a nasal sprayer. Background Art

[0002] The nasal cavity communicates with the outside world through the nostrils facing forward and downward, in which there are nasal hairs that can filter the inhaled air and reduce the inhalation of harmful substances such as dust. The nasal mucosa contains olfactory cells, secretory glands and a fairly rich number of capillaries, so the nasal cavity can heat and humidify the inhaled gas.

[0003] However, the nasal cavity is relatively fragile and may be damaged by smelling chemical irritants, physical injuries, and bad habits. For this reason, drugs are usually used to treat the nasal cavity. The traditional drip method is inconvenient, especially after dripping the drug, you need to tilt your head back to keep the drug absorbed as much as possible and prevent it from dripping from the nasal cavity. After changing it to a spray head, the mist of the drug can be sprayed in the nasal cavity, thereby achieving a therapeutic effect.

[0004] Before spraying medicine in the nasal cavity, the dust inside the nasal cavity needs to be cleaned, so as to ensure that the medicine can be completely absorbed in the nasal cavity after spraying, and prevent the medicine from sticking to the nasal cavity and causing insufficient spraying and uneven distribution. Therefore, a cotton swab dipped in saline is generally used to clean the nasal cavity. However, this method will cause the entire cleaning process to be very slow and the cleaning time to be long, which can easily make the cleaner feel uncomfortable. At the same time, when the nozzle of the nasal sprayer needs to be adjusted, it can usually only be achieved by adjusting the sprayer as a whole, which makes the existing nasal sprayer less functional and less practical. For this reason, we propose a nasal sprayer. Summary of the invention

[0005] A technical problem to be solved by the present application is that it is inconvenient to clean the nasal cavity before taking medicine, and the use of cotton swabs to stick saline back and forth is slow to remove, which leads to poor practicality and functionality.

[0006] In order to solve the above technical problems, the embodiment of the present application provides a nasal sprayer, including a hand-held sleeve, a protective shell arranged in the hand-held sleeve, and a connector arranged on the protective shell, and also includes:

[0007] An external delivery tube, which is arranged on the connector and is used to deliver the physiological saline inside the protective shell;

[0008] A cotton swab head, which is sleeved on the end surface of the outer delivery tube and immersed in physiological saline to wipe the dust in the nasal cavity;

[0009] An inner delivery tube, which is arranged inside the outer delivery tube and is used to deliver the liquid medicine for treating the nasal cavity stored inside the protective shell;

[0010] A mist nozzle, which is arranged on the end surface of the inner delivery pipe and is movably embedded in the inner delivery pipe;

[0011] A medicine switching unit is arranged inside the protective shell, and is used to suck the medicine into the inner delivery tube by rotation, and spray it into the nasal cavity from the mist nozzle, and can deliver the saline stored in the protective shell to the outer delivery tube by switching, and then immerse it into the cotton swab head, so that it can be wiped and cleaned repeatedly;

[0012] A protective cleaning component is provided on the cotton swab head and is used for cleaning the adhered dust on the cotton swab head to achieve reuse and protect the cotton swab head.

[0013] In some embodiments, the medicine switching unit includes a fixed tube arranged inside the protective shell, a rotating tube is movably arranged inside the fixed tube, a suction pump connected to the interior is arranged inside the rotating tube, two first connecting grooves are opened on the outer surface of the fixed tube, a second connecting groove corresponding to the two first connecting grooves is opened on the outer surface of the fixed tube, a water inlet groove connected to the corresponding first connecting groove is opened on the outer surface of the rotating tube, and a water outlet groove connected to the corresponding second connecting groove is opened on the outer surface of the rotating tube.

[0014] In some embodiments, connecting tubes are provided inside the two first connecting grooves, and the two connecting tubes are respectively arranged at the physiological saline solution and the medicine stored inside the protective shell. The inner delivery tube and the outer delivery tube are both provided with hoses. The hose on the inner delivery tube is arranged inside the second connecting groove close to the medicine, and the hose on the outer delivery tube is arranged inside the second connecting groove away from the medicine.

[0015] In some embodiments, a sliding rod is provided at the top of the suction pump, a button is provided at the top of the sliding rod passing through the interior of the protective shell, a side panel is provided on the outer surface of the sliding rod, a lifting cylinder is provided on the side of the side panel, and a guide column is provided at the top of the rotating tube.

[0016] In some embodiments, the internal movement of the lifting cylinder is arranged on the outer surface of the guide column, a spring is arranged between the guide column and the inside of the lifting cylinder, and a limiter is arranged on the protective shell for controlling the rotation angle when the button is switched.

[0017] In some embodiments, the limiting member includes a long inclined block arranged on the outer surface of the button, two through grooves are opened on the top of the protective shell, and the outer surface of the long inclined block is movably arranged inside the corresponding through grooves, and a storage member for replacing physiological saline and medicine is arranged inside the protective shell.

[0018] In some embodiments, the storage element includes two storage tubes threadedly disposed in a protective shell, wherein physiological saline and nasal treatment solution are respectively stored in the two storage tubes, and a straight plate is disposed at the bottom end of the two storage tubes.

[0019] In some embodiments, the protective cleaning component includes a protective tube movably mounted on an outer conveying tube, a limiting plate is mounted on the outer conveying tube, a protrusion inside the protective tube is movably mounted on the outer surface of the limiting plate, an extrusion ring is mounted on the inner wall of the protective tube, and the inner side of the extrusion ring is movably mounted on the outer surface of the cotton swab head.

[0020] In some embodiments, a double-layer pressing assembly is provided on the protective shell for more conveniently distinguishing between the suctioned saline solution and the medicine solution. The double-layer pressing assembly includes a pressing cylinder movably arranged on the outer surface of the sliding rod, and the outer surface of the pressing cylinder is arranged inside the protective shell. A cylinder consisting of two semi-cylinders is arranged between the fixed tube and the suction pump. The outer surfaces of the two semi-cylinders are provided with a water inlet groove and a water outlet groove, and the two water inlet grooves and the two water outlet grooves are connected to the corresponding second connecting groove and the first connecting groove, and the two suction pumps are movably arranged inside the protective shell.

[0021] In some embodiments, the outer surface of the sliding rod is sleeved with a ring, the outer surface of the ring is set on an L-shaped plate, the bottom of the L-shaped plate is set on the side of the water outlet trough close to the inner delivery pipe, the bottom end of the pressing cylinder is set with a three-link rod, the side of the three-link rod is set with a lifting ring, the bottom end of the lifting ring is movably set on the top of the suction pump, and the bottom of the three-link rod is set at the top of the semi-cylinder away from the inner delivery pipe.

[0022] The present invention has at least the following beneficial effects:

[0023] 1. The medicine switching component can be used to switch between medicine and saline. When wiping the inside of the nasal cavity, the saline can be delivered to the cotton swab head through the external delivery tube to keep the cotton swab head moist. There is no need to wet the cotton swab head back and forth for cleaning. This makes the operation more efficient. When spraying medicine, it can be switched to spray the medicine into the nasal cavity through the internal delivery tube and the mist nozzle, making the device more functional.

[0024] 2. The protective cleaning component has the following functions: first, it protects the cotton swab head when it is stationary to prevent its outer surface from being contaminated with dust; second, it can clean the cotton swab head after wiping the inside of the nasal cavity and scrape off the dust adhering to its outer surface, which can prevent cross infection during use and also increase the service life of the cotton swab head.

[0025] 3. The double-layer pressing component can distinguish between the medicine spraying and the saline wiping process, making the pressing operations of the two completely independent. At the same time, the component does not take up too much space, and the patient can accurately press the required part when using it, making it more convenient for the patient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 It is a schematic diagram of the cross-sectional structure of the protective shell of the present invention;

[0028] Figure 3 for Figure 2 A schematic diagram of the enlarged structure at A;

[0029] Figure 4 for Figure 2 A schematic diagram of the enlarged structure at B;

[0030] Figure 5 It is a schematic diagram of the structure of the medicine switching unit and the storage element of the present invention;

[0031] Figure 6 It is a schematic diagram of the explosion structure of the suction pump, the rotating pipe and the fixed pipe of the present invention;

[0032] Figure 7 It is a schematic diagram of the structure of the outer delivery tube, the inner delivery tube and the cotton swab head of the present invention;

[0033] Figure 8 It is a schematic diagram of the structure of the protective shell and the double-layer pressing assembly of the present invention;

[0034] Fig. 9 It is a schematic diagram of the explosion structure of the protective shell and the double-layer pressing assembly of the present invention;

[0035] Fig.10 It is a schematic diagram of the structure of the double-layer pressing assembly, button and fixing tube of the present invention;

[0036] Fig.11 It is a schematic diagram of the explosion structure of the fixed pipe, semi-cylinder, suction pump and sliding rod of the present invention.

[0037] In the figure: 1, hand-held sleeve; 2, protective shell; 3, outer delivery tube; 4, protective removal component; 41, protective cylinder; 42, limit plate; 43, extrusion ring; 5, connector; 6, liquid medicine switching unit; 61, button; 62, connecting tube; 63, slide rod; 64, suction pump; 65, rotating tube; 66, fixed tube; 67, lifting tube; 68, guide column; 69, spring; 610, side plate; 611, hose; 612, first Connecting groove; 613, second connecting groove; 614, water inlet groove; 615, water outlet groove; 7, limit piece; 71, long oblique block; 72, through groove; 8, inner conveying pipe; 9, storage piece; 91, storage tube; 92, straight plate; 10, cotton swab head; 11, mist nozzle; 12, double-layer pressing assembly; 121, pressing cylinder; 122, semi-cylinder; 123, three-link rod; 124, L-shaped plate; 125, sleeve ring; 126, lifting ring. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] Example 1: Please refer to Figure 1-7 The present invention provides a technical solution: a nasal sprayer, comprising a hand-held sleeve 1, a protective shell 2 arranged in the hand-held sleeve 1 and a connector 5 arranged on the protective shell 2, and also comprising:

[0040] An external delivery tube 3, which is arranged on the connector 5 and is used to deliver the physiological saline inside the protective shell 2;

[0041] A cotton swab head 10, which is sleeved on the end surface of the outer delivery tube 3, and is immersed in physiological saline to wipe the dust in the nasal cavity. The cotton swab head 10 is made of a material that can be used multiple times;

[0042] An inner delivery tube 8, which is disposed inside the outer delivery tube 3 and is used to deliver the liquid medicine for treating the nasal cavity stored inside the protective shell 2;

[0043] A mist nozzle 11 is arranged on the end surface of the inner delivery tube 8 and is movably embedded in the inner delivery tube 8. The mist nozzle 11 can disperse the liquid medicine into the nasal cavity as much as possible;

[0044] The medicine switching unit 6 is arranged inside the protective shell 2, and is used to suck the medicine into the inner delivery tube 8 by rotation, and spray it into the nasal cavity from the mist nozzle 11, and the physiological saline stored in the protective shell 2 can be transported to the outer delivery tube 3 by switching, and then immersed in the cotton swab head 10, and can be repeatedly wiped and cleaned;

[0045] The protective cleaning component 4 is arranged on the cotton swab head 10 and is used to remove the dust adhering to the cotton swab head 10 for reuse and to protect the cotton swab head 10 .

[0046] The medicine switching unit 6 includes a fixed tube 66 arranged inside the protective shell 2, and a rotating tube 65 is movably arranged inside the fixed tube 66. A suction pump 64 connected to the inside is arranged inside the rotating tube 65. The suction pump 64 is a prior art and will not be described in detail here. The outer surface of the fixed tube 66 is provided with two first connecting grooves 612, and the outer surface of the fixed tube 66 is provided with a second connecting groove 613 corresponding to the two first connecting grooves 612. The outer surface of the rotating tube 65 is provided with a water inlet groove 614 connected to the corresponding first connecting groove 612, and the outer surface of the rotating tube 65 is provided with a water outlet groove 615 connected to the corresponding second connecting groove 613. By rotating the water inlet groove 614 and the water outlet groove 615 on the rotating tube 65, it is aligned with the required fixed tube 66.

[0047] The two first connecting grooves 612 are each provided with a connecting tube 62, and the two connecting tubes 62 are respectively arranged at the physiological saline and medicine stored inside the protective shell 2. The inner delivery tube 8 and the outer delivery tube 3 are both provided with a hose 611. The hose 611 on the inner delivery tube 8 is arranged inside the second connecting groove 613 close to the medicine, and the hose 611 on the outer delivery tube 3 is arranged inside the second connecting groove 613 away from the medicine. For this reason, the fixed tube 66 close to the outer delivery tube 3 is connected with the physiological saline, which can provide physiological saline for wiping for the cotton swab ball, and the medicine away from it can enter the inner delivery tube 8 through the corresponding hose 611 and be sprayed out by the mist nozzle 11.

[0048] A slide bar 63 is provided at the top of the suction pump 64, and a button 61 is provided at the top of the slide bar 63 passing through the protective shell 2. A side plate 610 is provided on the outer surface of the slide bar 63, and a lifting cylinder 67 is provided on the side of the side plate 610. A guide column 68 is provided at the top of the rotating tube 65, so that the slide bar 63 can be freely raised and lowered without affecting the rotating tube 65. The rotating tube 65 is affected only when the slide bar 63 rotates itself.

[0049] The internal movement of the lifting cylinder 67 is arranged on the outer surface of the guide column 68, and a spring 69 is arranged between the guide column 68 and the inside of the lifting cylinder 67. A limiter 7 for controlling the rotation angle when the button 61 is switched is arranged on the protective shell 2. The arranged spring 69 can provide reset for the lifting cylinder 67 to prevent it from being stuck on the outer surface of the guide column 68.

[0050] The limiting member 7 includes a long oblique block 71 arranged on the outer surface of the button 61. Two through grooves 72 are provided on the top of the protective shell 2, and the outer surface of the long oblique block 71 is movably arranged inside the corresponding through grooves 72. The interior of the protective shell 2 is provided with a storage member 9 for replacing physiological saline and medicine. The two through grooves 72 are arranged 180 degrees to each other, that is, the button 61 can only be switched after being rotated 180 degrees. If this angle is not reached, the long oblique block 71 will be stuck on the protective shell.

[0051] The storage component 9 includes two storage tubes 91 threadedly arranged in the protective shell 2. The two storage tubes 91 respectively store physiological saline and nasal medicine. The bottom ends of the two storage tubes 91 are provided with a straight plate 92. The threaded arrangement allows for easy replacement. The straight plate 92 at the bottom end of the storage tube 91 can be disassembled by rotating it, thereby filling it with physiological saline or nasal medicine.

[0052] The protective cleaning component 4 includes a protective tube 41 movably mounted on the outer conveying tube 3, a limiting plate 42 is mounted on the outer conveying tube 3, a protrusion inside the protective tube 41 is movably mounted on the outer surface of the limiting plate 42, an inner wall of the protective tube 41 is provided with an extrusion ring 43, and the inner side of the extrusion ring 43 is movably mounted on the outer surface of the cotton swab head 10.

[0053] When the cotton swab head 10 needs to be used to clean the nasal cavity, the button 61 can be selected to align the long inclined block 71 set on the slide bar 63 with the through groove 72 away from the cotton swab head 10 and press it. At this time, the slide bar 63 can be driven to descend, and the slide bar 63 drives the end surface suction pump 64 to press, and the suction pump 64 will suck through the water inlet groove 614 provided on the outer surface of the rotating tube 65, and the water is sucked to the first connecting groove 612 through the water inlet groove 614, and the physiological fluid connected in the connecting tube 62 is connected to the first connecting groove 612. The saline solution is drawn out from the storage tube 91, enters the first connecting groove 612, passes through the water inlet groove 614 and enters the suction pump 64, is discharged from the water outlet groove 615, enters the interior of the outer delivery tube 3 through the hose 611 on the water outlet groove 615, and can finally be immersed in the interior of the cotton swab head 10. When the cotton swab head 10 is used to wipe hands for a long time, the protective tube 41 can be put on, and the protective tube 41 can be pulled back and forth to make the internal extrusion ring 43 contact with the cotton swab head 10, so as to scrape off the dust adhering to the outer surface of the cotton swab head 10.

[0054] When switching is required, the button 61 is pulled to move the outer surface of the slide bar 63, and the long oblique block 71 on the outer surface is away from the interior of the protective shell 2, and then rotated 180 degrees, and the long oblique block 71 is aligned with the through groove 72 of the adjacent inner delivery pipe 8, and then pressed. In this way, the slide bar 63 will drive the side plate 610 set on the outer surface to rotate, and the side plate 610 drives the lifting cylinder 67 set on the side to move, and the lifting cylinder 67 drives the guide column 68 set inside to move, and the guide column 68 will drive the rotating tube 65 set on the end surface to rotate between the suction pump 64 and the fixed tube 66, and connect the water inlet groove 614 and the water outlet groove 615 opened on the outer surface of the rotating tube 65 with the first connecting groove 612 and the second connecting groove 613 close to the inner delivery pipe 8. For this reason, the medicine can be drawn out from the storage tube 91, enter the interior of the inner delivery pipe 8 through the hose 611, and finally sprayed out from the mist nozzle 11.

[0055] Example 2: Please refer to Figure 8-11 The present invention provides a technical solution: a double-layer pressing assembly 12 is provided on the protective shell 2, which is used to distinguish and use the suctioned physiological saline and medicine more conveniently. The double-layer pressing assembly 12 includes a pressing cylinder 121 movably arranged on the outer surface of the sliding rod 63, and the outer surface of the pressing cylinder 121 is arranged inside the protective shell 2. A cylinder composed of two semi-cylinders 122 is arranged between the fixed pipe 66 and the suction pump 64. The outer surfaces of the two semi-cylinders 122 are both provided with a water inlet groove 614 and a water outlet groove 615, and the two inlet grooves 614 and the outlet grooves 615 are provided with a water inlet groove 614 and a water outlet groove 615. The water tank 614 and the two water outlet tanks 615 are connected to the corresponding second connecting tank 613 and the first connecting tank 612. The two suction pumps 64 are movably arranged inside the protective shell 2. The main thing is to split the rotating tube 65 into two identical semi-cylinders 122, and both are provided with a water inlet tank 614 and a water outlet tank 615. By pressing the semi-cylinder 122 on the other to block the corresponding fixed tube 66, when the suction pump 64 is pressed, only the semi-cylinder 122 that is not pressed can be sucked.

[0056] The outer surface of the slide rod 63 is sleeved with a ring 125, the outer surface of the ring 125 is set on the L-shaped plate 124, the bottom of the L-shaped plate 124 is set on the side of the water outlet groove 615 close to the inner delivery pipe 8, the bottom end of the pressing cylinder 121 is set with a three-link rod 123, the side of the three-link rod 123 is set with a lifting ring 126, the bottom end of the lifting ring 126 is movably set on the top of the suction pump 64, and the bottom of the three-link rod 123 is set at the top of the semi-cylinder 122 away from the inner delivery pipe 8. Such a setting can prevent mutual interference when the two are used separately.

[0057] When the device needs to be used, it can be achieved by pressing the button 61 or the pressing cylinder 121. The pressing cylinder 121 corresponds to the spraying of the medicine, while the button 61 corresponds to the physiological saline. A semi-cylinder 122 is pressed through the three-link rod 123 or the L-shaped plate 124. The semi-cylinder 122 will move the water inlet groove 614 and the water outlet groove 615 set on the outer surface away from the corresponding first connecting groove 612 and the second connecting groove 613. At this time, the extrusion suction pump 64 will only suck from the connected water inlet groove 614 and the water outlet groove 615.

[0058] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0059] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A nasal sprayer, comprising a hand-held sleeve (1), a protective shell (2) arranged in the hand-held sleeve (1), and a connector (5) arranged on the protective shell (2), characterized in that: Also includes: an external delivery tube (3), the external delivery tube (3) being arranged on the connector (5) and being used for delivering physiological saline inside the protective shell (2); A cotton swab head (10), which is sleeved on the end surface of the outer delivery tube (3) and is immersed in physiological saline to wipe the dust in the nasal cavity; An inner delivery tube (8), the inner delivery tube (8) being arranged inside the outer delivery tube (3) and used for delivering liquid medicine for treating the nasal cavity stored inside the protective shell (2); A mist nozzle (11), the mist nozzle (11) is arranged on the end surface of the inner delivery pipe (8), and is movably embedded in the inner delivery pipe (8); A medicine switching unit (6), which is arranged inside the protective shell (2) and is used to suck the medicine into the inner delivery tube (8) by rotation, and spray it into the nasal cavity from the mist nozzle (11), and can also transport the physiological saline stored in the protective shell (2) to the outer delivery tube (3) by switching, and then immerse it into the cotton swab head (10), so that it can be wiped and cleaned repeatedly; A protective cleaning component (4) is arranged on a cotton swab head (10) and is used to remove dust adhering to the cotton swab head (10) to achieve reuse and protect the cotton swab head (10).

2. The nasal sprayer according to claim 1, characterized in that: The medicine switching unit (6) comprises a fixed tube (66) arranged inside the protective shell (2), a rotating tube (65) is movably arranged inside the fixed tube (66), a suction pump (64) connected to the inside is arranged inside the rotating tube (65), two first connecting grooves (612) are arranged on the outer surface of the fixed tube (66), second connecting grooves (613) corresponding to the two first connecting grooves (612) are arranged on the outer surface of the fixed tube (66), a water inlet groove (614) connected to the corresponding first connecting groove (612) is arranged on the outer surface of the rotating tube (65), and a water outlet groove (615) connected to the corresponding second connecting groove (613) is arranged on the outer surface of the rotating tube (65).

3. The nasal sprayer according to claim 2, characterized in that: A connecting tube (62) is provided inside each of the two first connecting grooves (612), and the two connecting tubes (62) are respectively arranged at the physiological saline solution and the medicine solution stored inside the protective shell (2). A hose (611) is provided on each of the inner delivery tube (8) and the outer delivery tube (3), and the hose (611) on the inner delivery tube (8) is arranged inside the second connecting groove (613) close to the medicine solution, and the hose (611) on the outer delivery tube (3) is arranged inside the second connecting groove (613) away from the medicine solution.

4. The nasal sprayer according to claim 3, characterized in that: A sliding rod (63) is provided at the top end of the suction pump (64), a button (61) is provided at the top end of the sliding rod (63) penetrating through the interior of the protective shell (2), a side plate (610) is provided on the outer surface of the sliding rod (63), a lifting cylinder (67) is provided on the side of the side plate (610), and a guide column (68) is provided at the top end of the rotating tube (65).

5. The nasal sprayer according to claim 4, characterized in that: The internal movement of the lifting cylinder (67) is arranged on the outer surface of the guide column (68), a spring (69) is arranged between the guide column (68) and the inside of the lifting cylinder (67), and a limiter (7) for controlling the rotation angle of the button (61) when switching is arranged on the protective shell (2).

6. The nasal sprayer according to claim 5, characterized in that: The limiting member (7) comprises a long oblique block (71) arranged on the outer surface of the button (61); two through slots (72) are provided at the top of the protective shell (2); and the outer surface of the long oblique block (71) is movably arranged inside the corresponding through slots (72); and a storage member (9) for replacing physiological saline and medicine solution is arranged inside the protective shell (2).

7. The nasal sprayer according to claim 6, characterized in that: The storage element (9) comprises two storage tubes (91) threadedly arranged in a protective shell (2), wherein physiological saline and nasal treatment solution are respectively stored in the two storage tubes (91), and a straight plate (92) is arranged at the bottom ends of the two storage tubes (91).

8. The nasal sprayer according to claim 1, characterized in that: The protective cleaning component (4) comprises a protective tube (41) movably sleeved on the outer delivery tube (3), a limiting plate (42) sleeved on the outer delivery tube (3), a protrusion inside the protective tube (41) movably arranged on the outer surface of the limiting plate (42), an inner wall of the protective tube (41) is provided with an extrusion ring (43), and the inner side of the extrusion ring (43) is movably arranged on the outer surface of the cotton swab head (10).

9. The nasal sprayer according to claim 2, characterized in that: The protective shell (2) is provided with a double-layer pressing assembly (12) for more conveniently distinguishing and using the suctioned physiological saline solution and the medicine solution. The double-layer pressing assembly (12) comprises a pressing cylinder (121) movably arranged on the outer surface of the sliding rod (63). The outer surface of the pressing cylinder (121) is arranged inside the protective shell (2). A cylinder consisting of two semi-cylinders (122) is arranged between the fixed tube (66) and the suction pump (64). The outer surfaces of the two semi-cylinders (122) are provided with a water inlet groove (614) and a water outlet groove (615). The two water inlet grooves (614) and the two water outlet grooves (615) are connected to the corresponding second connecting groove (613) and the first connecting groove (612). The two suction pumps (64) are movably arranged inside the protective shell (2).

10. The nasal sprayer according to claim 9, characterized in that: The outer surface of the sliding rod (63) is sleeved with a collar (125), the outer surface of the collar (125) is arranged on an L-shaped plate (124), the bottom of the L-shaped plate (124) is arranged on the side of the water outlet groove (615) close to the inner delivery pipe (8), the bottom end of the pressing cylinder (121) is arranged with a three-link rod (123), the side of the three-link rod (123) is arranged with a lifting ring (126), the bottom end of the lifting ring (126) is movably arranged on the top of the suction pump (64), and the bottom of the three-link rod (123) is arranged at the top of the semi-cylinder (122) away from the inner delivery pipe (8).

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