Nasal spray actuator

Abstract

The utility model discloses a nasal spray actuator. In the nasal spray actuator, an inner cavity of a shell is used for containing a medicine bottle, and an opening allowing the medicine bottle to be inserted into the inner cavity of the shell is formed in the position, above the shell, of the inner cavity of the shell; the front side wall of the shell is provided with a spray pipe which obliquely extends upwards in the radial outward direction; a first notch for assembling the counting device is formed in the rear side wall of the shell, and the counting device is fixed between the shell and the rear cover; the protective cap is rotationally connected with the bottom wall of the shell, and the protective cap can rotate to a first state of covering the spraying pipe and can also rotate to a second state of exposing the spraying pipe; a first buckle is arranged on the brim of the protective cap, a first buckling position is arranged on the front side wall of the shell, and when the protective cap is in a first state, the first buckle is inserted into the first buckling position; when a user presses the medicine bottle, the medicine bottle triggers the counting device to count; the rear cover covers the first notch, and a second notch for avoiding the protective cap is formed in the center area of the lower portion of the rear cover. The product is convenient and sanitary to use and convenient to carry.

Description

Technical Field

[0001] This utility model relates to a nasal spray actuator. Background Technology

[0002] The actuator is the core component of an aerosol inhaler, and its function is to spray the medication into the user's mouth and nose in the form of an aerosol.

[0003] CN222238491U discloses a mechanical aerosol inhaler. When a user presses a medicine bottle, the bottle moves a drive rod downwards. During this downward movement, the drive rod triggers a counting gear assembly to decrement the count, and also compresses a spring. After the user releases the pressure, the spring causes the drive rod to return to its original position. This mechanical aerosol inhaler can be used to spray atomized medication into the user's mouth.

[0004] In actual use, it was found that this mechanical aerosol inhaler is more suitable for spraying aerosol into the user's mouth, but not suitable for spraying aerosol into the user's nasal cavity. Utility Model Content

[0005] This invention provides a nasal spray actuator to facilitate users in spraying atomized medication into the nasal cavity by pressing the bottle. It is convenient, safe and hygienic to operate.

[0006] This utility model provides the following technical solution: a nasal spray actuator, comprising: a shell, a protective cap, a counting device, and a rear cover;

[0007] The housing has an inner cavity for accommodating a medicine bottle, and the inner cavity has an opening at the top for inserting the medicine bottle into the inner cavity.

[0008] A spray pipe is provided on the front sidewall of the housing, extending upward at an angle in a radially outward direction, wherein the angle between the extension direction of the non-free end of the spray pipe pointing to the free end and the direction of the bottom of the housing pointing to the top is in the range of 50° to 70°.

[0009] The rear sidewall of the housing is provided with a first notch for assembling a counting device, and the counting device is fixed between the housing and the rear cover;

[0010] The protective cap is rotatably connected to the bottom wall of the housing. The protective cap can be rotated to a first state that covers the spray pipe, and the protective cap can also be rotated to a second state that exposes the spray pipe.

[0011] The protective cap has a first buckle on its brim and a first fastening position on the front side wall of the housing. When the first buckle is inserted into the first fastening position, the protective cap is in a first state. When the protective cap is in a second state, the first buckle is disengaged from the first fastening position.

[0012] When the user presses the medicine bottle, the liquid medicine inside the bottle is delivered to the user's nasal cavity through the spray tube, and the medicine bottle triggers the counting device to count;

[0013] The back cover covers the first notch and provides a window for observing the count value of the counting device, and the lower central area of ​​the back cover has a second notch to avoid the protective cap.

[0014] In some embodiments, the protective cap includes:

[0015] The hat itself;

[0016] A connecting plate that connects to the opening edge of the cap body;

[0017] A pivot shaft connected to the edge of the connecting plate away from the cap body;

[0018] A pivot fixing cotter pin is provided on the bottom wall of the housing;

[0019] The pivot of the protective cap is located inside the pivot fixing cotter pin on the housing, and the first buckle is set on the end face of the cap body.

[0020] In some embodiments, both ends of the rotating shaft of the protective cap are provided with rotating shaft stops;

[0021] The bottom wall of the housing is also provided with two pivot stops, each corresponding to a pivot stop component. The pivot stops are used to limit the maximum rotation angle of the protective cap in the first and second states, thereby limiting the extreme position of the protective cap's rotation.

[0022] In some embodiments, the pivot stop is a flat plate structure, the pivot stop is located on the side of the corresponding pivot fixing cotter pin facing away from the other pivot fixing cotter pin, the pivot stop extends beyond the end face of the bottom side wall of the housing in the direction from the front side wall to the rear side wall and is located above the bottom side wall, and the pivot stop protrudes radially from the pivot shaft.

[0023] In some embodiments, a second buckle is provided on the outer surface of the bottom wall of the housing, and a second latch corresponding to the second buckle is provided on the inner surface of the rear cover.

[0024] In some embodiments, the housing is provided with two third fastening positions, and the inner surface of the rear cover is provided with two third snaps; the third snaps are inserted into the corresponding third fastening positions one by one.

[0025] In some embodiments, a first cotter pin is provided on the inner surface of the rear cover, and a first cotter pin position corresponding to the first cotter pin is provided on the housing.

[0026] In some embodiments, the housing is provided with an inlet pipe and a spray hole. The longitudinal section of the inlet pipe is an inverted convex shape. The spray hole is connected to the narrow diameter section of the inlet pipe and is inclined upward in a radially outward direction. The angle between the direction from the non-free end of the spray hole to the free end and the direction from the non-free end of the inlet pipe to the free end is in the range of 50° to 70°.

[0027] In some embodiments, the end of the spray orifice is connected to the spray pipe via a cavity, or the spray pipe extends to the end of the spray orifice.

[0028] In some embodiments, the counting device includes a drive rod, a spring, and a counting gear assembly;

[0029] When the user presses the medicine bottle, the edge of the medicine bottle presses against the drive rod, the drive rod squeezes the spring, and the drive rod triggers the counting gear assembly to decrement the count;

[0030] When the user releases the medicine bottle, the spring causes the drive rod to return to its original position.

[0031] Because the spray nozzle is located on the outside of the casing and extends upwards at an angle, it can be operated with one hand. By pressing down on the bottle, the nozzle's extension direction is designed so that the outlet is directly facing the nasal cavity, allowing the aerosol to easily enter the nasal cavity, making it more ergonomic. The protective cap is rotatably connected to the bottom side wall of the casing, allowing users to expose and cover the spray nozzle by rotating it, preventing contamination of the nozzle and avoiding loss of the cap. The second notch on the rear cover increases the rotation angle of the protective cap while making the lower surface of the nasal spray actuator relatively flat, facilitating vertical placement. This nasal spray actuator is convenient to use, hygienic, and easy to store. Attached Figure Description

[0032] Figure 1 This is an exploded view of the nasal spray actuator of this utility model.

[0033] Figure 2 This is a perspective view of the protective cap of the nasal spray actuator of this utility model.

[0034] Figure 3 This is a perspective view of the housing of the nasal spray actuator of this utility model.

[0035] Figure 4 This is a cross-sectional view of the housing of the nasal spray actuator of this utility model.

[0036] Figure 5 This is a magnified view of a portion of the shell.

[0037] Figure 6 This is an assembly diagram of the housing and protective cap of the nasal spray actuator of this utility model.

[0038] Figure 7 This is a perspective view of the back cover of the nasal spray actuator of this utility model.

[0039] Figure 8 This is a perspective view of the rear cover of the nasal spray actuator of this utility model.

[0040] The attached figures are labeled as follows:

[0041] 1. Housing; 10. Housing inner cavity; 11. Liquid inlet pipe; 12. Spray hole; 13. Rotary shaft fixing cotter pin; 14. Rotary shaft stop position; 15. Spray pipe; 16. Third fastening position; 17. First cotter pin position; 18. First fastening position; 19. Second snap;

[0042] 2. Protective cap; 20. Cap body; 21. First buckle; 22. Rotary shaft stop; 23. Rotary shaft; 24. Anti-slip texture; 25. Sleeve; 26. Connecting plate;

[0043] 3. Counting device;

[0044] 4. Back cover; 41. Viewing window; 42. Third buckle; 43. First cotter pin; 44. Second latch; 45. Second notch;

[0045] 5. Medicine bottles. Detailed Implementation

[0046] The present invention will be further described below with reference to specific embodiments, but the scope of protection of the present invention is not limited thereto.

[0047] This utility model provides a nasal spray actuator, including: a housing, a protective cap, a counting device, and a rear cover.

[0048] <Shell>

[0049] The housing has an inner cavity for accommodating a medicine bottle, and the inner cavity has an opening at the top of the housing for inserting the medicine bottle into the inner cavity.

[0050] The cross-section of the shell can be approximated as a rectangle with rounded corners, a circle, or other shapes. This invention does not limit the cross-sectional shape of the shell.

[0051] A spray tube extending upward at an angle in a radially outward direction is provided on the front side wall of the housing to deliver medication into the user's nasal cavity via spray.

[0052] The spray nozzle curves upwards, making it easier to aim the nozzle opening at the nostril and for the user to hold the casing and press the medicine bottle.

[0053] The front wall of the housing refers to the side wall of the housing facing the user when in use.

[0054] In some embodiments, the angle between the direction in which the non-free end of the spray nozzle extends towards the free end and the direction in which the bottom of the housing points towards the top is in the range of 50° to 70°. More preferably, the angle is in the range of 55° to 65°. In a preferred embodiment, the angle is 60°.

[0055] The rear sidewall of the housing is provided with a first notch for assembling a counting device, which is fixed between the housing and the rear cover.

[0056] During assembly, a counting device is inserted into the housing through the first notch. The first notch extends into the bottom wall, left side wall, and right side wall of the housing, thereby matching the shape of the first notch with the shape of the rear cover. In the assembled state, the rear cover closes the first notch.

[0057] In some embodiments, a pivot fixing cotter pin is provided on the bottom wall of the housing.

[0058] The cotter pin for securing the shaft is a cylindrical tube extending horizontally. There can be one or two cotter pins. The function of the cotter pin is to hold the shaft, allowing it to rotate within it.

[0059] <Protective cap>

[0060] The protective cap is rotatably connected to the bottom wall of the housing. The protective cap can be rotated to a first state that covers the spray pipe, and the protective cap can also be rotated to a second state that exposes the spray pipe.

[0061] When the protective cap is in the first position, it protects the spray tube from contamination. When the protective cap is in the second position, the user can press the cap, and the aerosol enters the user's nasal cavity through the spray tube.

[0062] The protective cap has a first buckle on its brim and a first fastening position on the front side wall of the housing. When the protective cap is in the first state, the first buckle is inserted into the first fastening position.

[0063] The first clip engages with the first latch, allowing the protective cap to remain securely in its first position. The first clip and the first latch are detachable.

[0064] In some embodiments, the protective cap includes: a cap body; a connecting plate connected to the opening edge of the cap body; and a pivot connected to the side edge of the connecting plate away from the cap body.

[0065] The pivot is located inside the pivot fixing cotter pin, and the first buckle is disposed on the end face of the cap body.

[0066] In some embodiments, both ends of the rotating shaft are provided with rotating shaft stops;

[0067] The number of cotter pins fixing the rotating shaft is two, which are spaced apart from each other;

[0068] The bottom wall of the housing is also provided with two pivot stops, each corresponding to a pivot fixing cotter pin. The pivot stops are used to limit the maximum rotation angle of the protective cap in the first and second states, thereby limiting the extreme position of the protective cap's rotation.

[0069] For example, the pivot stop is a flat plate structure. The pivot stop is located on the side of the corresponding pivot fixing cotter pin that is opposite to the other pivot fixing cotter pin. The pivot stop extends beyond the end face of the bottom side wall of the housing in the direction from the front side wall to the rear side wall and is located above the bottom side wall. The pivot stop protrudes from the pivot in the radial direction of the pivot.

[0070] <Counting device>

[0071] When the user presses the medicine bottle, the bottle triggers the counting device to count.

[0072] In some embodiments, the counting device includes a drive rod, a spring, and a counting gear assembly; when the user presses the medicine bottle, the edge of the medicine bottle presses the drive rod, the drive rod squeezes the spring, and the drive rod triggers the counting gear assembly to decrement the count; when the user releases the medicine bottle, the spring drives the drive rod to reset.

[0073] This utility model does not limit the internal structure of the counting device, nor does it limit the connection method between the counting device and the housing.

[0074] For example, the counting device can be designed with reference to the drive rod, spring and counting gear assembly in CN222238491U.

[0075] For example, the counting device for the drug delivery inhaler provided in CN222098527U can be used as a reference for design.

[0076] Back Cover

[0077] The back cover covers the first notch and provides a window for observing the count value of the counting device, and the lower central area of ​​the back cover has a second notch to avoid the protective cap.

[0078] After the housing and back cover are assembled, ignoring the spray pipe, their overall shape is approximately a barrel with the opening facing upwards.

[0079] In some embodiments, to improve the mechanical strength of the back cover, a bridge-shaped structure is provided on the inner surface on both sides of the second notch. The bridge-shaped structure improves the mechanical strength of the bottom of the back cover and avoids the protective cap.

[0080] In some embodiments, a second buckle is provided on the outer surface of the bottom wall of the housing, and a second latch corresponding to the second buckle is provided on the inner surface of the rear cover.

[0081] When assembling the housing and back cover, insert the second clip into the second latch.

[0082] In some embodiments, the housing is provided with two third fastening positions, and the inner surface of the rear cover is provided with two third snaps; the third snaps are inserted into the corresponding third fastening positions one by one.

[0083] When assembling the housing and back cover, insert the third clip into the third latch.

[0084] In some embodiments, a first cotter pin is provided on the inner surface of the rear cover, and a first cotter pin position corresponding to the first cotter pin is provided on the housing.

[0085] When assembling the housing and the back cover, insert the first cotter pin into the first cotter pin position to enhance the stability of the connection between the housing and the back cover.

[0086] In some embodiments, the nasal spray actuator also includes a vial. The vial is inserted into the housing with its outlet facing downwards.

[0087] The housing contains an inlet pipe and a spray hole. The longitudinal cross-section of the inlet pipe is an inverted convex shape. The spray hole communicates with the narrow diameter section of the inlet pipe and is inclined upwards in a radially outward direction. The angle between the direction from the non-free end of the spray hole to the free end and the direction from the non-free end of the inlet pipe to the free end is in the range of 50° to 70°. In a further preferred embodiment, this angle is in the range of 55° to 65°. In one embodiment, the angle is 60°.

[0088] The shape of the inlet tube matches the shape of the outlet of the medicine bottle.

[0089] In some embodiments, the end of the spray orifice communicates with the spray pipe via a cavity. In other embodiments, the spray pipe extends to the end of the spray orifice. The former facilitates mold making and has a relatively simple manufacturing process; the latter has a higher utilization rate of the aerosol.

[0090] Example 1

[0091] refer to Figures 1 to 8 Example 1 provides a nasal spray actuator, including: a housing 1, a protective cap 2, a counting device 3, and a rear cover 4.

[0092] Combination Figure 1 and Figure 4 The housing 1 has an inner cavity 10 for accommodating the medicine bottle 5. An opening is formed in the upper part of the housing 1 for inserting the medicine bottle 5 into the inner cavity 10.

[0093] refer to Figure 3 A spray pipe 15 is provided on the front side wall of the housing 1, extending upward at an angle in a radially outward direction. The spray pipe 15 is a rigid straight pipe, with its end away from the housing 1 being higher than its end near the housing 1. The angle between the extension direction of the non-free end of the spray pipe 15 towards the free end and the direction from the bottom of the housing 1 towards the top is 60°.

[0094] A first notch for assembling the counting device 3 is provided on the rear side wall of the housing 1. The counting device 3 is fixed between the housing 1 and the rear cover 4. (Reference) Figure 1 The counting device 3 is inserted into the housing 1 through the first notch, and then the first notch is covered by the rear cover 4. The housing 1 is provided with a structure for fixing the counting device 3.

[0095] The protective cap 2 is rotatably connected to the bottom wall of the housing 1. The protective cap 2 can be rotated to a first state that covers the spray pipe 15, and the protective cap 2 can also be rotated to a second state that exposes the spray pipe 15. Figure 6 This shows the second state of the protective cap 2.

[0096] Combination Figure 2 and Figure 3 The protective cap 2 has a first buckle 21 on its brim and a first fastening position 18 on the front side wall of the housing 1. When the protective cap 2 is in the first state, the first buckle 21 is inserted into the first fastening position 18. The protective cap 2 covers the spray tube 15 to prevent the spray tube 15 from being contaminated. The first buckle 21 and the first fastening position 18 are detachably connected. When the user needs to spray medication into the nasal cavity, the user can detach the protective cap 2 from the housing 1.

[0097] refer to Figure 1When the user presses the medicine bottle 5, the medicine bottle 5 triggers the counting device 3 to count. The edge of the medicine bottle 5 touches the counting device 3, thereby triggering the counting device 3 to count. Specifically, the counting device 3 decrements the count.

[0098] Combination Figure 1 , Figure 7 and Figure 8 The rear cover 4 covers the first notch and provides a viewing window 41 for observing the counting value of the counting device 3. The lower central area of ​​the rear cover 4 has a second notch 45 to avoid the protective cap 2. The second notch 45 extends forward to the end face of the rear cover 4 and backward to the bottom of the viewing window 41, leaving a gap between it and the viewing window 41.

[0099] refer to Figures 2 to 5 Protective cap 2 includes:

[0100] Hat body 20;

[0101] A connecting plate 26 that connects to the opening edge of the cap body;

[0102] A pivot 23 is connected to the edge of the connecting plate 26 away from the cap body;

[0103] A pivot fixing cotter pin 13 is provided on the bottom wall of housing 1;

[0104] The rotating shaft 23 is located inside the rotating shaft fixing cotter pin 13, and the first buckle 21 is set on the end face of the cap body.

[0105] Anti-slip texture 24 is provided on the outer surface of the cap body 20 to increase the friction between the cap body 20 and the user's fingers.

[0106] The cap body 20 is a cap-shaped structure with the center bulging outwards.

[0107] The diameter of the middle part of the rotating shaft 23 is larger than the diameter of the contact area between the rotating shaft 23 and the rotating shaft fixing cotter pin 13, thereby limiting the rotating shaft 23 in its axial direction.

[0108] Both ends of the rotating shaft 23 are provided with rotating shaft stop parts 22;

[0109] There are two cotter pins 13 for fixing the rotating shaft, which are spaced apart from each other.

[0110] Two pivot stops 14 are also provided on the bottom wall of the housing 1. The pivot stops 14 are provided in a one-to-one correspondence with the pivot fixing cotter pins 13. The pivot stops 14 are used to limit the maximum rotation angle of the protective cap 2 in the first and second states.

[0111] The pivot stop 14 is a flat plate structure located on the side of the corresponding pivot fixing cotter pin 13 facing away from the other pivot fixing cotter pin 13. It extends beyond the bottom side wall of the housing 1 along the front side wall towards the rear side wall and is located above the bottom side wall. The pivot stop 22 protrudes radially from the pivot 23.

[0112] Combination Figure 2 and Figure 5 When the protective cap 2 rotates to the first state, the shaft stop 22 presses against the lower surface of the flat plate structure of the shaft stop position 14, restricting the shaft 23 from continuing to rotate; when the protective cap 2 rotates to the second state, the shaft stop 22 presses against the end face of the bottom side wall of the housing 1, restricting the shaft 23 from continuing to rotate.

[0113] Combination Figure 5 and Figure 8 A second buckle 19 is provided on the outer surface of the bottom wall of the housing 1, and a second latch 44 corresponding to the second buckle 19 is provided on the inner surface of the rear cover 4. During assembly, the second latch 44 is fastened onto the second opening 19.

[0114] The housing 1 is provided with two third latches 16, and the inner surface of the rear cover 4 is provided with two third latches 42; the third latches 42 are inserted into the corresponding third latches 16 one by one.

[0115] A first cotter pin 43 is provided on the inner surface of the back cover 4, and a first cotter pin position 14 corresponding to the first cotter pin 43 is provided on the housing 1. The first cotter pin 43 and the first cotter pin position 14 are engaged to make the connection between the back cover 4 and the housing 1 more secure.

[0116] refer to Figure 3 The housing 1 is provided with an inlet pipe 11 and a spray hole 12. The longitudinal section of the inlet pipe 11 is an inverted convex shape. The spray hole 12 is connected to the narrow diameter section of the inlet pipe 11 and is inclined upward in a radially outward direction. The angle between the direction from the non-free end of the spray hole 12 to the free end and the direction from the non-free end of the inlet pipe 11 to the free end is 60°.

[0117] The end of the spray orifice 12 is connected to the spray tube 15 through a cavity (not shown). The aerosol is sprayed obliquely upward into the spray tube 15 within the spray orifice 12, and then into the user's nasal cavity through the spray tube 15. The spray tube 15 and the spray orifice 12 extend in the same direction and are coaxial.

[0118] The counting device 3 includes a drive rod, a spring, and a counting gear assembly;

[0119] When the user presses the medicine bottle 5, the edge of the medicine bottle 5 presses the drive rod, the drive rod squeezes the spring, and the drive rod triggers the counting gear assembly to decrement the count.

[0120] When the user releases the medicine bottle 5, the spring drives the drive rod to return to its original position. The counting device 3 is designed with reference to existing technology and will not be described in detail here.

[0121] This utility model is not limited to the above-described embodiments. Any modifications, improvements, or substitutions that can be conceived by those skilled in the art without departing from the essential content of this utility model shall fall within the scope of this utility model.

Claims

1. A nasal spray actuator, comprising: Housing, protective cap, counting device, and rear cover; The housing has an inner cavity for accommodating a medicine bottle, and the inner cavity has an opening at the top for inserting the medicine bottle into the inner cavity. A spray pipe is provided on the front sidewall of the housing, extending upward at an angle in a radially outward direction, wherein the angle between the extension direction of the non-free end of the spray pipe pointing to the free end and the direction of the bottom of the housing pointing to the top is in the range of 50° to 70°. The rear sidewall of the housing is provided with a first notch for assembling a counting device, and the counting device is fixed between the housing and the rear cover; The protective cap is rotatably connected to the bottom wall of the housing. The protective cap can be rotated to a first state that covers the spray pipe, and the protective cap can also be rotated to a second state that exposes the spray pipe. The protective cap has a first buckle on its brim and a first fastening position on the front side wall of the housing. When the first buckle is inserted into the first fastening position, the protective cap is in a first state. When the protective cap is in a second state, the first buckle is disengaged from the first fastening position. When the user presses the medicine bottle, the liquid medicine inside the bottle is delivered to the user's nasal cavity through the spray tube, and the medicine bottle triggers the counting device to count; The back cover covers the first notch and provides a window for observing the count value of the counting device, and the lower central area of ​​the back cover has a second notch to avoid the protective cap.

2. The nasal spray actuator according to claim 1, characterized in that, The protective cap includes: The hat itself; A connecting plate that connects to the opening edge of the cap body; A pivot shaft connected to the edge of the connecting plate away from the cap body; A pivot fixing cotter pin is provided on the bottom wall of the housing; The pivot of the protective cap is located inside the pivot fixing cotter pin on the housing, and the first buckle is set on the end face of the cap body.

3. The nasal spray actuator according to claim 2, characterized in that, Both ends of the rotating shaft of the protective cap are provided with rotating shaft stops; The bottom wall of the housing is also provided with two pivot stops, each corresponding to a pivot stop component. The pivot stops are used to limit the maximum rotation angle of the protective cap in the first and second states, thereby limiting the extreme position of the protective cap's rotation.

4. The nasal spray actuator according to claim 3, characterized in that, The rotating shaft stop is a flat plate structure. The rotating shaft stop is located on the side of the corresponding rotating shaft fixing cotter pin that is opposite to the other rotating shaft fixing cotter pin. The rotating shaft stop extends beyond the end face of the bottom side wall of the housing in the direction from the front side wall to the rear side wall and is located above the bottom side wall. The rotating shaft stop protrudes from the rotating shaft radially.

5. The nasal spray actuator according to claim 1, characterized in that, A second buckle is provided on the outer surface of the bottom wall of the housing, and a second latching position corresponding to the second buckle is provided on the inner surface of the rear cover.

6. The nasal spray actuator according to claim 1, characterized in that, The housing has two third latches, and the inner surface of the rear cover has two third buckles; the third buckles are inserted into the corresponding third latches one by one.

7. The nasal spray actuator according to claim 1, characterized in that, A first cotter pin is provided on the inner surface of the rear cover, and a first cotter pin position corresponding to the first cotter pin is provided on the housing.

8. The nasal spray actuator according to claim 1, characterized in that, The housing is provided with an inlet pipe and a spray hole. The longitudinal section of the inlet pipe is an inverted convex shape. The spray hole is connected to the narrow diameter section of the inlet pipe and is inclined upward in a radially outward direction. The angle between the direction from the non-free end of the spray hole to the free end and the direction from the non-free end of the inlet pipe to the free end is in the range of 50° to 70°.

9. The nasal spray actuator according to claim 8, characterized in that, The end of the spray orifice is connected to the spray pipe through a cavity, or the spray pipe extends to the end of the spray orifice.

10. The nasal spray actuator according to claim 1, characterized in that, The counting device includes a drive rod, a spring, and a counting gear assembly; When the user presses the medicine bottle, the edge of the medicine bottle presses against the drive rod, the drive rod squeezes the spring, and the drive rod triggers the counting gear assembly to decrement the count; When the user releases the medicine bottle, the spring causes the drive rod to return to its original position.

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