Nasal spray head with adjustable liquid spray state

Abstract

The present invention relates to the technical field of nasal spray, and provides a nasal spray head with adjustable liquid spray state, comprising: a pressing buckle cover, which comprises a cover body, a liquid drawing piece arranged on an inner side of the cover body, an insertion piece arranged on an outer side of the cover body, and a liquid-tight tube sleeved at the periphery of the insertion piece; a fixed piston, which comprises a piston body, wherein the piston body is constrainedly sleeved on the insertion piece, a bottom end of the piston body is in sealing fit with an inner circumferential wall of the liquid-tight tube, and a top end of the piston body is provided with a liquid outlet hole and a fluid-guiding insertion column which is provided with water outflow channels; and a spray head, which comprises a spray head body, wherein the spray head body is rotatably sleeved outside the liquid-tight tube, the top of the spray head body is provided with a liquid spray end in insertion fit with the fluid-guiding insertion column, and the liquid spray end is provided with an ejection hole, spray forming grooves, and jet flow forming grooves. The nasal spray head with adjustable liquid spray state of the present invention can be switched to a spray state or a jet flow state when a user rotates it to a preset angle according to his / her own needs, and has a simple structure with convenient operation.

Description

Nasal spray nozzle with adjustable spray state Technical Field

[0001] The present invention relates to the technical field of nasal sprays, in particular to a nasal spray head with adjustable liquid spraying state. Background Art

[0002] Nasal sprays use pressure-driven atomization to deliver atomized medication into the nasal cavity, thereby treating illnesses or allergic symptoms. In medicine, nasal sprays are widely used to treat nasal diseases, allergic rhinitis, and post-nasal surgery. In daily life, nasal sprays are also used in a variety of scenarios, such as cleansing the nasal cavity, hydrating, and improving sleep quality. We can choose the right nasal spray product based on our specific needs and use it correctly to achieve the desired results.

[0003] The nasal spray nozzle of the existing nasal spray bottle with adjustable spray state has only one spray mode. For example, the existing patent (application number: 202223161795.3) discloses a nasal wash nozzle and nasal wash nozzle, which has only one spray mode. Summary of the Invention

[0004] In view of the shortcomings of the prior art described above, the technical problem to be solved by the present invention is to provide a nasal spray nozzle with adjustable spray state, which can be switched to spray state or jet state when the user rotates it to a preset angle according to his or her own needs, and has a simple structure and is easy to operate.

[0005] In order to solve the above technical problems, the present invention provides a nasal spray nozzle with adjustable spray state, comprising:

[0006] The snap-on cover comprises a cover body, a liquid-drawing member disposed on the inner side of the cover body, an inserting member disposed on the outer side of the cover body, and a liquid-tight tube sleeved around the outer periphery of the inserting member. The liquid inlet end of the liquid-drawing member is used to trigger and connect to a liquid spray valve of a liquid storage container, and the liquid outlet end of the liquid-drawing member is connected to the lumen of the liquid-tight tube.

[0007] A fixed piston includes a piston body having a liquid outlet cavity with a downward opening. The piston body is constrainedly sleeved on the insert. The bottom end of the piston body is sealed with the inner circumferential wall of the liquid-tight tube. The top end of the piston body is provided with a liquid outlet hole and a guide insert column. The liquid outlet hole and the liquid outlet cavity are interconnected. The guide insert column is provided with a water outlet flow channel for guiding the liquid flowing out of the liquid outlet hole.

[0008] The nozzle includes a nozzle body having a nozzle cavity with a downward opening, the nozzle body being rotatably disposed on the liquid-tight tube, the top of the nozzle body being provided with a liquid spraying end engaged with the flow guide plug column, the liquid spraying end being provided with a spray hole, a spray forming groove, and a jet forming groove, the spray forming groove and the jet forming groove both extending and communicating with the spray hole;

[0009] When the nozzle is rotated to the first position relative to the snap cover, the water outlet channel, the spray forming groove and the spray hole are connected in sequence;

[0010] When the spray head rotates to the second position relative to the snap cover, the water outlet channel, the jet forming groove and the spray hole are connected in sequence.

[0011] Furthermore, a circumferential positioning fitting relationship is formed between the nozzle body and the liquid-tight tube through an angle positioning assembly, and the angle positioning assembly includes a positioning protrusion and a positioning slot that can be detached or engaged, the positioning protrusion is provided in one of the nozzle body and the liquid-tight tube, and the positioning slot is provided in the other of the nozzle body and the liquid-tight tube.

[0012] Furthermore, the number of the positioning protrusions and the number of the positioning grooves are both two and they correspond one to one; with the axis of the liquid-tight tube as the center line, the angle between the two positioning protrusions is 180 degrees.

[0013] Furthermore, with the hole axis of the injection hole as the center line, all the spray-forming grooves and all the jet-forming grooves are arranged in a circular array and staggered.

[0014] Furthermore, the number of the water outlet channels, the number of the spray-forming grooves, and the number of the jet-forming grooves are all three, and the angle between two circumferentially adjacent water outlet channels, the angle between two circumferentially adjacent spray-forming grooves, and the angle between two circumferentially adjacent jet-forming grooves are all 120 degrees; the nozzle reaches the second position after rotating 180 degrees from the first position relative to the snap-on cover, and reaches the first position after continuing to rotate 180 degrees from the second position relative to the snap-on cover.

[0015] Furthermore, the extension trajectories of all the spray-forming slots and the extension trajectories of all the jet-forming slots are located in the same plane.

[0016] Furthermore, a pressing icon is provided on the cover body, and a spray icon and a jet icon are provided on the nozzle body; the spray forming groove is connected to the water outlet channel when the spray icon is aligned with the pressing icon, and the jet forming groove is connected to the water outlet channel when the jet icon is aligned with the pressing icon.

[0017] Furthermore, the cover body includes a bottle clamping part and a pressing cover part for people to press. The bottle clamping part is used to be installed on the liquid storage container. The pressing cover part is integrally formed with the bottle clamping part through the connecting part. The pressing cover part is connected to the liquid spray valve of the liquid storage container through the liquid drawing part.

[0018] Furthermore, an anti-tampering portion is provided between the cover pressing portion and the bottle clamping portion, and the anti-tampering portion breaks when the cover pressing portion is pressed.

[0019] Furthermore, the insert includes a support column and a plurality of positioning ribs provided on the outer peripheral wall of the support column, and the cavity wall of the liquid outlet cavity is provided with a plurality of slots that correspond one-to-one to the positioning ribs and are slidably fitted; at least one positioning rib is axially abutted against the piston body.

[0020] Furthermore, the top end of the piston body has a top sealing lip that is liquid-tightly matched with the nozzle body, and the bottom end of the piston body has a bottom sealing lip that is liquid-tightly matched with the nozzle body.

[0021] Furthermore, the number of the water outlet channels, the number of the spray forming slots and the number of the jet forming slots are equal, all the water outlet channels are circumferentially arrayed on the guide plug-in column, and all the spray forming slots and all the jet forming slots are circumferentially arrayed on the liquid spray end.

[0022] As described above, the nasal spray nozzle with adjustable spray state of the present invention has the following beneficial effects: the snap-on cap is mounted on a liquid storage container, which has a spray valve installed on top. The spray valve is a conventional structure. When the spray valve is pressed, it switches from a closed state to an open state; when the spray valve is not pressed, the spray valve returns to the closed state. The snap-on cap is a mounting component for the fixed piston and spray nozzle, which must be mounted on the snap-on cap. The liquid outlet of the liquid-drawing element is connected to the lumen of the liquid-tight tube, and the liquid inlet of the liquid-drawing element is used to trigger and connect to the spray valve of the liquid storage container. When a portion of the cap body is pressed, the liquid inlet of the liquid-drawing element also applies pressure to the spray valve, causing the liquid in the liquid storage container to spray into the flow channel of the liquid-drawing element and then into the lumen of the liquid-tight tube. The snap-on cap can be made of plastic, so that the cap body, liquid-drawing element, insert, and liquid-tight tube can be integrally formed through injection molding. The piston body has a downwardly opening liquid outlet cavity, which is constrainedly mounted on the insert. The bottom end of the piston body seals against the inner circumferential wall of the liquid-tight tube. This arrangement allows liquid within the liquid-drawing element to flow directly or indirectly into the liquid outlet cavity and then out of the piston body through the liquid outlet. A diversion insert is disposed at the top of the piston body, and the diversion insert is provided with a water outlet channel. This arrangement allows the water outlet channel to direct liquid flowing out of the liquid outlet to the liquid spray end of the nozzle. The main innovation of the present invention lies in the nozzle's liquid spray adjustment function: the nozzle body is rotatably mounted on the liquid-tight tube, and the liquid spray end is provided with a spray hole, a spray-forming groove, and a jet-forming groove, both of which extend and connect to the spray hole. When the nozzle is rotated relative to the snap-on cover to a first position, the water outlet channel, spray-forming groove, and nozzle hole are sequentially connected. When the nozzle is rotated relative to the snap-on cover to a second position, the water outlet channel, jet-forming groove, and nozzle hole are sequentially connected. For example, the spray-forming groove can be a cyclone groove, extending in an arc or deviating from the radial direction of the liquid spray tip. Liquid in the liquid spray tip flows through the spray-forming groove while being broken into a mist at the spray hole under the action of mechanical agitation. The jet-forming groove can be a linear groove, extending in the radial direction of the liquid spray tip, with its radial inner end aligned with the hole axis of the spray hole. Each rotation of the nozzle through a predetermined angle switches the nasal nozzle to either a spray state or a jet state.

[0023] Therefore, the nasal spray nozzle with adjustable spray state of the present invention can be switched to the spray state or the jet state when the user rotates it to a preset angle according to his or her own needs, and has a simple structure and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] FIG1 is a perspective view of a nasal spray nozzle with adjustable spraying state according to the present invention;

[0025] FIG2 is a top view of a nasal spray nozzle with adjustable spray state according to the present invention;

[0026] FIG3 is a side view of a nasal spray tip with adjustable spray state according to the present invention;

[0027] FIG4 is a cross-sectional view taken along line AA in FIG3 ;

[0028] FIG5 is a cross-sectional view taken along line BB in FIG4 ;

[0029] FIG6 is a perspective view of a snap-on cover;

[0030] FIG7 shows a first perspective view of the spray head;

[0031] FIG8 shows a second perspective view of the spray head;

[0032] FIG9 shows a first perspective view of a fixed piston;

[0033] FIG. 10 shows a second perspective view of the fixed piston.

[0034] Component Reference Numerals 1 Snap-on cover 11 Cover body 111 Bottle clamping portion 112 Cover clamping portion 113 Connecting portion 114 Tamper-evident portion 12 Liquid-drawing member 13 Insert 131 Support column 132 Positioning rib 14 Liquid-tight tube 141 Snap ring 15 Pressing icon 2 Fixed piston 21 Piston body 211 Top sealing lip 212 Bottom sealing lip 22 Liquid outlet cavity 221 Slot 23 Liquid outlet hole 24 Diversion insert 25 Water outlet channel 3 Spray head 31 Spray head body 311 Hook 32 Spray head cavity 33 Liquid spraying end 34 Spray hole 35 Spray forming groove 36 Jet forming groove 37 Spray icon 38 Jet icon 4 Angle positioning component 41 Positioning protrusion 42Positioning slot DETAILED DESCRIPTION

[0035] The following describes the implementation of the present invention through specific embodiments. People skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0036] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions for implementation of the present invention. Therefore, they have no substantial technical significance. Any modification of the structure, change in the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the efficacy and purpose of the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description and are not used to limit the scope of implementation of the present invention. Changes or adjustments in their relative relationships should also be regarded as the scope of implementation of the present invention without substantially changing the technical content.

[0037] In Figures 4 and 5, the black curved arrows indicate the direction of liquid flow.

[0038] As shown in Figures 1, 2, 3, 4 and 5, the present invention provides a nasal spray nozzle with adjustable spray state, comprising:

[0039] The snap-on cover 1 includes a cover body 11, a liquid-drawing member 12 disposed on the inner side of the cover body 11, an insert 13 disposed on the outer side of the cover body 11, and a liquid-tight tube 14 sleeved around the outer periphery of the insert 13. The liquid inlet end of the liquid-drawing member 12 is used to trigger and communicate with a liquid spray valve of a liquid storage container, and the liquid outlet end of the liquid-drawing member 12 is connected to the lumen of the liquid-tight tube 14.

[0040] The fixed piston 2 includes a piston body 21 having a liquid outlet cavity 22 with a downward opening. The piston body 21 is constrainedly sleeved on the insert 13. The bottom end of the piston body 21 is sealed with the inner circumferential wall of the liquid-tight tube 14. The top end of the piston body 21 is provided with a liquid outlet hole 23 and a guide plug column 24. The liquid outlet hole 23 is connected to the liquid outlet cavity 22. The guide plug column 24 is provided with a water outlet channel 25 for guiding the liquid flowing out of the liquid outlet hole 23.

[0041] The nozzle 3 includes a nozzle body 31 having a nozzle cavity 32 with a downward opening. The nozzle body 31 is rotatably disposed on the liquid-tight tube 14. The top of the nozzle body 31 is provided with a liquid spraying end 33 that is plugged into the guide plug column 24. The liquid spraying end 33 is provided with a spray hole 34, a spray forming groove 35, and a jet forming groove 36. The spray forming groove 35 and the jet forming groove 36 both extend and communicate with the spray hole 34.

[0042] When the nozzle 3 rotates to the first position relative to the snap cover 1, the water outlet channel 25, the spray forming groove 35 and the spray hole 34 are connected in sequence;

[0043] When the nozzle 3 rotates to the second position relative to the snap cover 1 , the water outlet channel 25 , the jet forming groove 36 and the spray hole 34 are connected in sequence.

[0044] In the present invention, a snap-on cap 1 is mounted on a liquid storage container (e.g., a bottle or can) having a spray valve mounted on top. This spray valve is a conventional structure. When pressed, it switches from a closed state to an open state; when not pressed, it returns to a closed state. The snap-on cap 1 is a mounting component for a fixed piston 2 and a spray head 3, which must be mounted on the snap-on cap 1. The liquid outlet of the liquid-drawing element 12 is connected to the lumen of a liquid-tight tube 14, while the liquid inlet of the liquid-drawing element 12 is used to trigger and connect to the liquid-drawing valve of a liquid storage container. When a portion of the cap body 11 is pressed, the liquid inlet of the liquid-drawing element 12 also applies pressure to the spray valve, causing the liquid in the liquid storage container to spray into the flow path of the liquid-drawing element 12 and then into the lumen of the liquid-tight tube 14. The snap cover 1 may be made of plastic, so that the cover body 11 , the liquid-absorbing member 12 , the inserting member 13 and the liquid-tight tube 14 may be integrally formed by an injection molding process.

[0045] The piston body 21 has a downwardly opening liquid outlet cavity 22. The piston body 21 is constrainedly sleeved on the insert 13, with the bottom end of the piston body 21 sealingly engaged with the inner circumferential wall of the liquid-tight tube 14. This arrangement allows liquid within the liquid-drawing member 12 to flow directly or indirectly into the liquid outlet cavity 22 and then out of the piston body 21 through the liquid outlet hole 23. A diversion plug 24 is provided at the top of the piston body 21. The diversion plug 24 is provided with a water outlet channel 25. This arrangement allows the water outlet channel 25 to guide the liquid flowing out of the liquid outlet 23 to the liquid spraying end 33 of the nozzle 3.

[0046] The main innovation of the present invention lies in the liquid spraying adjustment function of the nozzle 3: the nozzle body 31 is rotatably mounted on the liquid-tight tube 14, and the liquid spraying end 33 is provided with a spray hole 34, a spray-forming groove 35, and a jet-forming groove 36. The spray-forming groove 35 and the jet-forming groove 36 both extend and connect to the spray hole 34. When the nozzle 3 is rotated to a first position relative to the snap-on cover 1, the water outlet channel 25, the spray-forming groove 35, and the spray hole 34 are sequentially connected. When the nozzle 3 is rotated to a second position relative to the snap-on cover 1, the water outlet channel 25, the jet-forming groove 36, and the spray hole 34 are sequentially connected. For example, the spray-forming groove 35 can be a cyclone groove, and the extension trajectory of the spray-forming groove 35 can be arc-shaped or deviate from the radial direction of the liquid spraying end 33. Liquid in the liquid spraying end 33 flows through the spray-forming groove 35 and is broken into a mist at the spray hole 34 under the action of mechanical agitation. The jet-forming groove 36 can be a linear groove extending radially along the liquid spray end 33, with the radial inner end of the jet-forming groove 36 aligned with the hole axis of the injection hole 34. Each time the nozzle 3 rotates through a predetermined angle, the nasal nozzle switches to the spray state or the jet state.

[0047] Therefore, the nasal spray nozzle with adjustable spray state of the present invention can be switched to the spray state or the jet state when the user rotates it to a preset angle according to his or her own needs, and has a simple structure and is easy to operate.

[0048] Furthermore, as shown in Figure 4 , to enhance the rigidity of the liquid-drawing member 12 and to accommodate the tilt angle of the nozzle 3, the liquid-drawing member 12 is configured as a Y-shaped straw. The Y-shaped straw comprises a main pipe, a first branch, and a second branch. The main pipe is connected to the liquid spray valve, the first branch is connected to the lumen of the liquid-tight tube 14, and one end of the second branch is sealed.

[0049] Furthermore, referring to Figures 6 and 8 , to lock the rotation angle of the spray head 3 relative to the snap-on cover 1, allowing the user to precisely tighten the nozzle into position, the nozzle body 31 and the liquid-tight tube 14 are circumferentially positioned and engaged by an angle positioning assembly 4. This angle positioning assembly 4 includes a detachable or engageable positioning protrusion 41 and a positioning slot 42. The positioning protrusion 41 is provided on one of the nozzle body 31 and the liquid-tight tube 14, while the positioning slot 42 is provided on the other. When the spray head 3 is rotated to the first or second position relative to the snap-on cover 1, the user hears a "click," indicating that the positioning protrusion 41 and the positioning slot 42 engage. To switch the spray mode, the user continues to rotate the spray head 3, at which point the positioning protrusion 41 and the positioning slot 42 disengage. When the spray head 3 is rotated again relative to the snap-on cover 1 to the first or second position, the user hears another "click," indicating that the positioning protrusion 41 and the positioning slot 42 engage again.

[0050] Furthermore, in order to switch the spray mode of the nozzle 3 every time the user rotates 180 degrees, there are two positioning protrusions 41 and two positioning slots 42, and they correspond one to one; with the axis of the liquid-tight tube 14 as the center line, the angle between the two positioning protrusions 41 is 180 degrees.

[0051] Furthermore, as shown in FIG5 , in order to form the liquid into a better spray state or jet state, with the hole axis of the injection hole 34 as the center line, all the spray-forming grooves 35 and all the jet-forming grooves 36 are arranged in a circumferential array and staggered. For example, the number of spray-forming grooves 35 and the number of jet-forming grooves 36 are both multiple. More preferably, in order to form the liquid into a better spray state or jet state, the number of the water outlet flow channels 25, the number of the spray-forming grooves 35, and the number of the jet-forming grooves 36 are equal, all the water outlet flow channels 25 are arranged in a circumferential array on the guide plug column 24, and all the spray-forming grooves 35 and all the jet-forming grooves 36 are arranged in a circumferential array on the liquid spray end 33. Furthermore, the number of the water outlet channels 25, the number of the spray-forming slots 35, and the number of the jet-forming slots 36 are all three, and the angle between two circumferentially adjacent water outlet channels 25, the angle between two circumferentially adjacent spray-forming slots 35, and the angle between two circumferentially adjacent jet-forming slots 36 are all 120 degrees. The nozzle head 3 rotates 180 degrees relative to the snap-on cover 1 from the first position to the second position, and then rotates another 180 degrees relative to the snap-on cover 1 from the second position to the first position. This configuration facilitates patient operation, and the liquid spraying state can be switched every 180-degree rotation of the nozzle head 3.

[0052] Furthermore, in order to simplify the structure and facilitate the dislocation or connection of the flow channels, the extension trajectories of all the spray forming slots 35 and the extension trajectories of all the jet forming slots 36 are located in the same plane.

[0053] Furthermore, in combination with Figures 2, 3 and 7, in order to facilitate the user to accurately rotate the nozzle 3, a pressing icon 15 is provided on the cover body 11, and a spray icon 37 and a jet icon 38 are provided on the nozzle body 31; the spray forming groove 35 is connected to the water outlet channel 25 when the spray icon 37 is aligned with the pressing icon 15, and the jet forming groove 36 is connected to the water outlet channel 25 when the jet icon 38 is aligned with the pressing icon 15.

[0054] Furthermore, in combination with Figures 4 and 6, in order to reduce the number of parts, the cover body 11 includes a bottle clamping portion 111 and a pressing portion 112 for people to press. The bottle clamping portion 111 is used to be installed on the liquid storage container, and the pressing portion 112 is integrally formed with the bottle clamping portion 111 through the connecting portion 113. The pressing portion 112 is connected to the liquid spray valve of the liquid storage container through the liquid drawing part 12.

[0055] Furthermore, in order to facilitate the user to check whether the nasal spray nozzle has been used, an anti-tampering portion 114 is provided between the cover pressing portion 112 and the bottle holding portion 111. The anti-tampering portion 114 breaks when the cover pressing portion 112 is pressed. The cross section of the anti-tampering portion 114 is relatively small and is relatively easy to be pulled apart.

[0056] Furthermore, as shown in FIG6 , in order to axially and circumferentially constrain the fixed piston 2, the insert 13 includes a support column 131 and a plurality of positioning ribs 132 provided on the outer peripheral wall of the support column 131. The wall of the liquid outlet chamber 22 is provided with a plurality of slots 221 that correspond one-to-one with the positioning ribs 132 and are slidably fitted. At least one positioning rib 132 axially abuts against the piston body 21. As a specific embodiment of the insert 13, there are three positioning ribs 132, one of which is relatively thick, and the remaining two are relatively thin. Under the joint constraint of the three positioning ribs 132, the fixed piston 2 cannot rotate relative to the insert 13. Under the stopping action of the relatively thick positioning rib 132, the fixed piston 2 is positioned at a preset height of the insert 13.

[0057] Furthermore, as shown in Figures 9 and 10 , to improve fluid tightness, the top end of the piston body 21 has a top sealing lip 211 that fluid-tightly mates with the nozzle body 31, and the bottom end of the piston body 21 has a bottom sealing lip 212 that fluid-tightly mates with the fluid-tight tube 14. Specifically, an interference fit exists between the bottom sealing lip 212 and the fluid-tight tube 14, thereby preventing the bottom end of the fixed piston 2 from separating from the fluid-tight tube 14.

[0058] Furthermore, as shown in FIG4 , to facilitate the detachable installation of the spray head 3 on the snap-on cover 1 , the opening edge of the spray head body 31 is provided with a hook 311 , and the outer peripheral wall of the liquid-tight tube 14 is provided with a snap ring 141 . The hook 311 and the snap ring 141 engage with each other. Specifically, there are at least two hooks 311 .

[0059] In summary, the present invention can switch to a spray state or a jet state when the user rotates the nozzle to a preset angle according to their needs, and has a simple structure and convenient operation. Therefore, the present invention effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0060] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical principles disclosed herein are intended to be covered by the claims of the present invention.

Claims

1. A nasal spray nozzle with adjustable spray state, characterized in that: include: The snap-on cover (1) comprises a cover body (11), a liquid-drawing member (12) disposed on the inner side of the cover body (11), an inserting member (13) disposed on the outer side of the cover body (11), and a liquid-tight tube (14) sleeved around the inserting member (13); a liquid inlet end of the liquid-drawing member (12) is used to trigger and communicate with a liquid spray valve of a liquid storage container; and a liquid outlet end of the liquid-drawing member (12) is communicated with a lumen of the liquid-tight tube (14); A fixed piston (2) includes a piston body (21), the piston body (21) having a liquid outlet cavity (22) with an opening facing downward, the piston body (21) being constrainedly sleeved on the insert (13), the bottom end of the piston body (21) being sealed and fitted with the inner circumferential wall of the liquid-tight tube (14), the top end of the piston body (21) being provided with a liquid outlet hole (23) and a guide insert column (24), the liquid outlet hole (23) and the liquid outlet cavity (22) being communicated with each other, the guide insert column (24) being provided with a water outlet channel (25), the water outlet channel (25) being used to guide the liquid flowing out of the liquid outlet hole (23); The nozzle (3) includes a nozzle body (31), the nozzle body (31) has a nozzle cavity (32) with an opening facing downward, the nozzle body (31) is rotatably disposed on the liquid-tight tube (14), the top of the nozzle body (31) is provided with a liquid spraying end (33) that is plugged into and matched with the flow guide plug-in column (24), the liquid spraying end (33) is provided with a spray hole (34), a spray forming groove (35) and a jet forming groove (36), and the spray forming groove (35) and the jet forming groove (36) both extend and communicate with the spray hole (34); When the spray head (3) rotates to a first position relative to the snap cover (1), the water outlet channel (25), the spray forming groove (35) and the spray hole (34) are connected in sequence; When the spray head (3) rotates to a second position relative to the snap cover (1), the water outlet channel (25), the jet forming groove (36) and the spray hole (34) are connected in sequence.

2. The nasal spray nozzle with adjustable spray state according to claim 1, characterized in that: A circumferential positioning matching relationship is formed between the nozzle body (31) and the liquid-tight tube (14) via an angle positioning assembly (4). The angle positioning assembly (4) comprises a positioning protrusion (41) and a positioning groove (42) that can be disengaged or engaged. The positioning protrusion (41) is provided on one of the nozzle body (31) and the liquid-tight tube (14), and the positioning groove (42) is provided on the other of the nozzle body (31) and the liquid-tight tube (14).

3. The nasal spray nozzle with adjustable spray state according to claim 2, characterized in that: The number of the positioning protrusions (41) and the number of the positioning grooves (42) are both two and they correspond one to one; with the axis of the liquid-tight tube (14) as the center line, the angle between the two positioning protrusions (41) is 180 degrees.

4. The nasal spray nozzle with adjustable spray state according to claim 1, characterized in that: With the hole axis of the injection hole (34) as the center line, all the spray forming grooves (35) and all the jet forming grooves (36) are arranged in a circumferential array and staggered.

5. The nasal spray nozzle with adjustable spray state according to claim 4, characterized in that: The number of the water outlet channels (25), the number of the spray forming grooves (35), and the number of the jet forming grooves (36) are all three, and the angle between two circumferentially adjacent water outlet channels (25), the angle between two circumferentially adjacent spray forming grooves (35), and the angle between two circumferentially adjacent jet forming grooves (36) are all 120 degrees; the nozzle (3) reaches the second position after rotating 180 degrees relative to the buckle cover (1) from the first position, and reaches the first position after further rotating 180 degrees relative to the buckle cover (1) from the second position.

6. The nasal spray nozzle with adjustable spray state according to claim 4, characterized in that: The extension trajectories of all the spray-forming grooves (35) and the extension trajectories of all the jet-forming grooves (36) are located in the same plane.

7. The nasal spray nozzle with adjustable spray state according to claim 1, characterized in that: The cover body (11) is provided with a pressing icon (15), and the nozzle body (31) is provided with a spray icon (37) and a jet icon (38); the spray forming groove (35) is connected to the water outlet channel (25) when the spray icon (37) is aligned with the pressing icon (15), and the jet forming groove (36) is connected to the water outlet channel (25) when the jet icon (38) is aligned with the pressing icon (15).

8. The nasal spray nozzle with adjustable spray state according to claim 1, characterized in that: The cap body (11) comprises a bottle-holding portion (111) and a pressing portion (112) for a person to press. The bottle-holding portion (111) is used to be mounted on a liquid storage container. The pressing portion (112) is integrally formed with the bottle-holding portion (111) via a connecting portion (113). The pressing portion (112) is connected to a liquid spray valve of the liquid storage container via a liquid-drawing member (12).

9. The nasal spray nozzle with adjustable spray state according to claim 7, characterized in that: An anti-tampering portion (114) is further provided between the cover pressing portion (112) and the bottle clamping portion (111), and the anti-tampering portion (114) breaks when the cover pressing portion (112) is pressed.

10. The nasal spray nozzle with adjustable spray state according to claim 1, characterized in that: The insert (13) includes a support column (131) and a plurality of positioning ribs (132) provided on the outer peripheral wall of the support column (131); a plurality of slots (221) corresponding to the positioning ribs (132) and slidingly fitting therewith are provided on the wall of the liquid outlet cavity (22); at least one positioning rib (132) is axially abutted against the piston body (21).

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