CN216169350U - Single-dose trigger type nasal spray device - Google Patents

Abstract

The utility model discloses a single-dose trigger type nasal spray device which comprises a nozzle assembly, a storage assembly and a trigger assembly. The trigger assembly comprises a trigger body, a trigger piece and an elastic piece. The trigger body is assembled on the nozzle assembly. The storage assembly is assembled between the nozzle assembly and the trigger body. The trigger piece is connected with the trigger body in a sliding mode. The elastic component is assembled on the trigger body and is abutted against the storage component. When the first limiting part and the second limiting part are butted, the elastic piece in a compressed state is locked; when the second limiting part and the third limiting part are butted, the elastic part is converted to an extension state from a compression state, and in the conversion process, the storage assembly is pushed to move, so that the medium in the storage assembly is sprayed to the nasal cavity through the nozzle assembly. The utility model can be suitable for different groups, is convenient for users to operate, and ensures that different users can take over and deliver the medicines with the same dosage at the same speed, thereby greatly improving the use experience and the treatment effect.

Description

Single-dose trigger type nasal spray device

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a single-dose trigger type nasal spray device.

Background

Sinusitis is a nonspecific inflammation of the mucosa of the sinuses, a common frequently encountered disease in the nose, generally divided into acute and chronic types. Currently, a large portion of the population is suffering from sinusitis. Based on the fact that the medicine can be absorbed quickly by the whole body of a human body through the high blood flow velocity of the mucosa of the paranasal sinuses, the most effective and most convenient mode for treating the nasosinusitis in the existing medical treatment is to deliver the anti-nasosinusitis medicine to the nasal cavity through a nasal spray device so as to realize that the medicine can be delivered to the whole body through the nasal passages, thereby achieving the purpose of quick treatment.

The nasal spray device is very popular with the majority of users due to the advantages of convenience for user operation, strong practicability and the like. However, in the prior art, in the process of delivering the medicine to the nasal cavity by operating the nasal spraying device, the button is pressed by hard extrusion of manpower to spray the medicine to the nasal cavity, however, the extrusion force of users of different types is different, and the extrusion speed is also different, so when the extrusion speed and force are too high, the medicine spraying form is very easy to be uneven, the probability of damage of the nasal spraying device is increased, and the using effect is seriously affected. For example, when the squeezing speed and force are too low, the dosage of the medicine is not completely sprayed and the medicine is in a liquid state and seeps out, so that the treatment effect is not good. Therefore, the existing nasal spray devices cannot ensure consistency during use when used by different types of users.

Therefore, based on the defects existing in the prior art, how to design a nasal spray device which can be suitable for different groups of users, is convenient for the users to operate, saves labor, and ensures that different users can take over and deliver the same dose of medicine at the same speed, thereby greatly improving the use experience and the treatment effect is always a problem to be solved by the ordinary technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a single-dose trigger type nasal spray device which can be suitable for users of different groups, is convenient for the users to operate, saves labor, ensures that different users can take over and deliver the medicines with the same dose at the same speed, and can greatly improve the use experience and the treatment effect.

The technical scheme provided by the utility model is as follows:

a single-dose trigger-type nasal spray device comprising:

a nozzle assembly, a storage assembly and a trigger assembly;

the trigger assembly comprises a trigger body, a trigger piece and an elastic piece;

the trigger body is assembled on the nozzle assembly;

the storage assembly is assembled between the nozzle assembly and the trigger body;

the trigger piece is connected to the trigger body in a sliding manner; and

the elastic element is assembled on the trigger body and abuts against the storage element;

the storage component is provided with a first limiting part, the trigger body is provided with a second limiting part, and the trigger piece is provided with a third limiting part; when the trigger piece slides and the first limiting part and the second limiting part are butted, the elastic piece in a compressed state is locked; when the second limiting part and the third limiting part are in butt joint, the elastic piece is converted to an extension state from a compression state, and in the conversion process, the storage assembly is pushed to move, so that the medium in the storage assembly is sprayed to the nasal cavity through the nozzle assembly.

In this patent, the nose spouts the device when being in unused state, and the first spacing portion that is located on the storage component and the spacing portion of second that is located on triggering the body are in butt joint cooperation under the extrusion of triggering the piece to the elastic component that will be in compression state pins. When a user is ready to use the nasal spray device to deliver the medicine to the nasal cavity, only a small force is needed to trigger the trigger piece, the trigger piece is in the sliding process, when the second limiting part is in butt joint and matching with the third limiting part positioned on the trigger piece, the second limiting part and the first limiting part are released from the limiting relation, the elastic piece is converted to the stretching state from the compression state, and in the conversion process, the storage assembly is pushed to move, so that the medicine is automatically sprayed and delivered through the elastic force. Therefore, the elastic force of the nasal spray device is consistent, the speed and the force provided by the elastic force are consistent in the process of spraying the medicine, the spraying forms of the medicine are consistent, and therefore, the use consistency is ensured in the operation process of users of different groups, namely, the users of the old, children or adults and untrained third parties can take over and deliver the medicine with the same dosage at the same speed, the operation is convenient, the labor is saved, and the use experience and the treatment effect of the users can be greatly improved.

Further preferably, the nozzle assembly comprises a nozzle body and a media guide;

the nozzle body and the trigger body are assembled;

one end of the nozzle body, which is far away from the trigger body, is provided with a spout;

the medium guide rod is assembled in the nozzle body, one end of the medium guide rod is abutted to the nozzle, and the other end of the medium guide rod is matched with the storage component in a acting manner; and

a medium flow passage is arranged in the medium guide rod and is communicated with the storage assembly and the nozzle; in the process of stretching, the elastic part pushes the storage assembly to move towards the direction of the nozzle, so that the medium in the storage assembly is sprayed to the nasal cavity through the medium channel and the nozzle in sequence.

Further preferably, a guide rod mounting station is arranged in the nozzle body and corresponds to the position of the nozzle;

the guide rod mounting station is provided with a guide rod mounting groove communicated with the nozzle;

one end of the medium guide rod is inserted into the guide rod mounting groove and is abutted against the nozzle;

the other end of the medium guide rod extends to the outside of the mounting station and is used for being matched with the storage component in an interaction mode.

Further preferably, the storage assembly comprises a dose vial and a dose vial holder for assembling the dose vial;

one end of the dosage bottle, which faces the nozzle, is provided with an opening;

a piston is arranged in the dosage bottle, a medium is stored between the piston and the dosage bottle, and the piston is provided with a seepage flow channel; and

the outer wall surface of the dose bottle holder, which is far away from one end of the nozzle, is provided with an abutting annular edge;

one end of the elastic piece is abutted against the trigger body, and the other end of the elastic piece is abutted against the abutting annular edge;

the elastic piece pushes the dosage bottle holder and the dosage bottle to move towards the nozzle direction in the stretching process, the medium guide rod extends into the dosage bottle, and the piston is squeezed, so that the medium is guided into the medium flow channel through the liquid seepage flow channel.

Further preferably, a limiting ring groove is formed in the trigger body and at one end far away from the nozzle;

the limiting ring groove is arranged around the periphery of the second limiting part; and

the limiting ring groove and the abutting ring edge are correspondingly arranged;

the elastic piece is a compression spring, one end of the compression spring is sleeved on the dosage bottle support and is abutted against the abutting annular edge, the other end of the compression spring is sleeved on the second limiting part and is abutted against the limiting annular groove.

Further preferably, the trigger body has a pressing recess at an end thereof remote from the nozzle body;

the pressing concave part is provided with a trigger channel which extends towards the interior of the trigger body and is used for the trigger piece to slide;

the first limiting part is arranged at one end, far away from the nozzle, of the dosage bottle holder;

the second limiting part is arranged at one end, far away from the pressing concave part, of the trigger channel;

the third limiting part is arranged at one end, facing the nozzle, of the trigger piece.

Further preferably, the first limiting part is a limiting ring edge which is arranged on the edge of the dosage bottle holder far away from one end of the nozzle, and the limiting ring edge is arranged towards the inner side of the dosage bottle holder in a rolling manner; and

the second limiting part is a plurality of elastic abutting buckles arranged at intervals along the edge of one end of the trigger channel, and the elastic abutting buckles are obliquely arranged towards the inside of the trigger channel; the free end of each elastic abutting buckle is provided with a lug which is used for being clamped and matched with the edge of the limiting ring; and

the third limiting part is a concave ring groove formed around the outer wall surface of the trigger piece; the contour of the concave ring groove is matched with the contour formed by the elastic buckles;

when the end part of the trigger piece slides into the elastic support buckles in the sliding process of the trigger piece, the elastic support buckles are spread, so that the lug and the limit ring are in clamping fit to lock the elastic piece in a compressed state; when a plurality of elasticity is supported the knot inlay card in the concave ring inslot, the elastic component is converted to the extension state by compression state, and in the in-process of conversion, promotes dose bottle holds in the palm with the motion of dose bottle makes the medium pass through in proper order the medium runner with the spout sprays to the nasal cavity.

Further preferably, the trigger is a rod-shaped structure;

one end of the trigger piece is provided with a pressing part, and the opposite end of the trigger piece is provided with a spreading part;

the pressing part is used for being pressed by fingers of a user, and the expanding part is matched with the elastic buckles so as to switch the elastic buckles between an expanding state and a contracting state; and

one end of the opening part, which is far away from the pressing part, is provided with an annular inverted buckle which is used for being in limit fit with the free end of the elastic abutting buckle.

Further preferably, the trigger body is of a flat housing configuration;

and the two sides of the trigger body are respectively provided with a holding part for holding the hand of a user.

Further preferably, one end of the nozzle body facing the trigger body forms a butt joint; and

the trigger body is arranged in an opening manner towards one end of the nozzle body so as to be used for butting the butting part;

the inner edge of the trigger body is provided with a fixed column, and one end of the fixed column facing the nozzle body is provided with a plurality of buckling positions; and

the butt joint part of the nozzle body is provided with a plurality of extending columns extending into the trigger body, and the free end of each extending column is provided with a buckle;

the nozzle body is fixed on the trigger body, the plurality of buckles and the plurality of buckling positions are arranged in a one-to-one correspondence mode, and the buckles and the buckling positions in each opposite position are in buckling fit, so that the nozzle body is fixed on the trigger body.

The utility model has the technical effects that:

in this patent, the nose spouts the device when being in unused state, and the first spacing portion that is located on the storage component and the spacing portion of second that is located on triggering the body are in butt joint cooperation under the extrusion of triggering the piece to the elastic component that will be in compression state pins. When a user is ready to use the nasal spray device to deliver the medicine to the nasal cavity, only a small force is needed to trigger the trigger piece, the trigger piece is in the sliding process, when the second limiting part is in butt joint and matching with the third limiting part positioned on the trigger piece, the second limiting part and the first limiting part are released from the limiting relation, the elastic piece is converted to the stretching state from the compression state, and in the conversion process, the storage assembly is pushed to move, so that the medicine is automatically sprayed and delivered through the elastic force. Therefore, the elastic force of the nasal spray device is consistent, the speed and the force provided by the elastic force are consistent in the process of spraying the medicine, the spraying forms of the medicine are consistent, and therefore, the use consistency is ensured in the operation process of users of different groups, namely, the users of the old, children or adults and untrained third parties can take over and deliver the medicine with the same dosage at the same speed, the operation is convenient, the labor is saved, and the use experience and the treatment effect of the users can be greatly improved.

Drawings

The utility model is described in further detail below with reference to the following figures and detailed description:

FIG. 1 is a schematic structural view of a product of the present invention;

FIG. 2 is an exploded perspective view of FIG. 1;

FIG. 3 is a cutaway exploded view of FIG. 1;

FIG. 4 is a diagram illustrating the use of the product of the present invention in one state;

FIG. 5 is a diagram illustrating the use of the product of the present invention in another state;

FIG. 6 is a diagram illustrating the use of the product of the present invention in still another state;

FIG. 7 is a diagram illustrating the use of the product of the present invention in still another state;

FIG. 8 is a cut-away view of the trigger body shown in FIG. 3;

fig. 9 is a cut-away view of the trigger shown in fig. 3.

The reference numbers illustrate:

a nasal spray device 100; a nozzle assembly 1; a nozzle body 11; a spout 111; a guide bar mounting station 112; an installation slot 1121; a butting portion 113; an extension column 1131; a snap 11311; a medium guide 12; a medium flow path 121; a storage component 2; a dose bottle 21; a piston 211; a permeate flow passage 2111; a dose vial holder 22; an abutment collar 221; a stop collar edge 222; a trigger assembly 3; a trigger body 31; a limit ring groove 311; the pressing recess 312; a trigger channel 313; an elastic support button 314; a bump 3141; a grip portion 315; a fixed post 316; a fastening position 3161; a trigger 32; a concave ring groove 321; a pressing portion 322; a spreader 323; an annular undercut 3231; an elastic member 33.

Detailed Description

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

For the sake of simplicity, the drawings only schematically show the parts relevant to the present invention, and they do not represent the actual structure as a product. In addition, in order to make the drawings concise and understandable, components having the same structure or function in some of the drawings are only schematically illustrated or only labeled. In this document, "one" means not only "only one" but also a case of "more than one".

It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

In this context, it is to be understood that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, in the description of the present application, the terms "first", "second", and the like are used only for distinguishing the description, and are not intended to indicate or imply relative importance.

According to an embodiment of the present invention, as shown in fig. 1 to 9, a single-dose trigger type nasal spray device 100 includes a nozzle assembly 1, a storage assembly 2, and a trigger assembly 3. The trigger assembly 3 includes a trigger body 31, a trigger 32, and an elastic member 33. The trigger body 31 is assembled to the nozzle assembly 1. The storage assembly 2 is assembled between the nozzle assembly 1 and the trigger body 31. The trigger 32 is slidably connected to the trigger body 31, and the elastic member 33 is assembled to the trigger body 31 and abuts against the storage component 2. The storage assembly 2 has a first position-limiting portion, the trigger body 31 has a second position-limiting portion, and the trigger 32 has a third position-limiting portion. When the trigger 32 slides and the first and second position-limiting parts are abutted, the elastic member 33 in a compressed state is locked. When the second limiting part and the third limiting part are butted, the elastic part 33 is switched from the compression state to the extension state, and in the switching process, the storage component 2 is pushed to move, so that the medium in the storage component 2 is sprayed to the nasal cavity through the nozzle component 1.

In this embodiment, when the nasal spray device 100 is not in use, the first position-limiting portion on the storage component 2 and the second position-limiting portion on the trigger body 31 are in butt fit under the squeezing action of the trigger 32, so as to lock the elastic member 33 in a compressed state. When a user is ready to use the nasal spray device 100 to deliver a drug to the nasal cavity, only a small force is required to trigger the trigger 32, the trigger 32 is in a sliding process, and when the second limiting portion is in butt joint with the third limiting portion on the trigger 32, the second limiting portion and the first limiting portion are released from a limiting relationship, the elastic member 33 is switched from a compression state to an extension state, and in the switching process, the storage assembly 2 is pushed to move, so that the drug is automatically sprayed and delivered through the elastic force. Thus, the elastic force of the nasal spray device 100 is consistent, so that the speed and the force provided by the elastic force are consistent in the process of spraying the medicine, the spraying forms of the medicine are also consistent, and thus, the use consistency is ensured in the operation process of users of different groups, namely, the users of the old, children or adults and untrained third parties can take over and deliver the medicine with the same dosage at the same speed, the operation is convenient, the labor is saved, and the use experience and the treatment effect of the users can be greatly improved.

It should be noted that the nasal spray device 100 provided by the present invention may be a liquid medicine for treating sinusitis, or other liquid medicines for patients, and the medium is not limited to liquid, but also may be powder, and any form of medium is within the protection scope of the present invention.

In the present embodiment, referring to fig. 1-3, the nozzle assembly 1 may include a nozzle body 11, the nozzle body 11 being configured to assemble with the trigger body 31 of the trigger assembly 3 to form the outer profile of the nasal spray device 100. Specifically, the nozzle body 11 and the trigger body 31 can be made of plastic materials, so that the cost is saved, the overall weight of the nasal spray device 100 can be reduced to a great extent, and the portability of a user in the using and carrying processes is improved. Especially, when the user goes out and carries a large number of nasal spray devices 100, the burden of the user can be greatly relieved.

Further, in the present embodiment, referring to fig. 1 to 3 and 8, the trigger body 31 is preferably a flat shell structure, which can greatly save space, and the trigger body 31 may be regular or irregular, which is not limited herein, and can be specifically set according to actual use requirements and user preferences. Wherein, both sides of the trigger body 31 are respectively provided with a holding portion 315 for a user to hold, two fingers of the same hand of the user are respectively tightly held on the two holding portions 315, and then the trigger 32 is triggered by the other finger to complete the medicine ejection operation. By providing two holding portions 315, the nasal spray device 100 can be effectively prevented from easily escaping from the hand during use. In particular, the grip 315 may be a recess opened on the side of the trigger body 31, wherein the recess is adapted to the contour of the fingers. Of course, the grip 315 may also be a plurality of anti-slip convex points or anti-slip concave points disposed on the side of the trigger body 31, which are all within the protection scope of this patent and are not described herein again.

Further, in order to facilitate the rapid assembly and disassembly of the nozzle body 11 to the trigger body 31, the two can be snap-fitted together. Specifically, in order to ensure that the connection between the nozzle body 11 and the trigger body 31 can be smoothly connected to improve the overall appearance and comfort of use, a docking portion 113 may be formed at one end of the nozzle body 11 facing the trigger body 31, and one end of the trigger body 31 facing the nozzle body 11 is open for docking the docking portion 113, and the docking portion 113 is adapted to the contour of the opening. It should be noted that the apertures of the rest regions of the nozzle body 11 different from the abutting portion 113 are smaller than the aperture of the abutting portion 113, so that the nozzle body 11 can be formed into a cone-like structure to be adapted to any nose structure.

Specifically, referring to fig. 2, 3 and 8, a fixing post 316 may be disposed on an inner edge of the trigger body 31, and a plurality of fastening portions 3161 may be disposed on an end of the fixing post 316 facing the nozzle body 11. Correspondingly, the abutting portion 113 of the nozzle body 11 is provided with a plurality of extending columns 1131 extending to the inside of the trigger body 31, and a free end of each extending column 1131 is provided with a buckle 11311. The plurality of buckles 11311 and the plurality of buckling positions 3161 are arranged in a one-to-one correspondence manner, and the buckle 11311 and the buckling position 3161 at each opposite position are in buckling fit with each other, so that the nozzle body 11 is fixed to the trigger body 31.

Of course, it should be noted that any other fixing manner capable of achieving the butt joint of the nozzle body 11 and the trigger body 31 is within the protection scope of the present patent, and redundant description is not repeated herein.

Further, in the present embodiment, referring to fig. 2 and 3, the nozzle assembly 1 may further include a medium guide 12. Specifically, the end of the nozzle body 11 remote from the trigger body 31 has a nozzle opening 111, and the nozzle opening 111 is adapted to directly engage the nasal cavity of a person to deliver a medicament therethrough into the interior of the nasal cavity. The medium guide 12 is assembled inside the nozzle body 11, and one end thereof abuts against the spout 111, and the opposite end thereof is operatively engaged with the storage unit 2. Wherein, a medium flow passage 121 is arranged in the medium guide rod 12, and the medium flow passage 121 is communicated with the storage component 2 and the nozzle 111. In the process of stretching, the elastic member 33 pushes the storage component 2 to move towards the nozzle 111, so that the medium in the storage component 2 is ejected to the nasal cavity through the medium channel 121 and the nozzle 111 in sequence.

It should be noted that in the present embodiment, a guide rod installation station 112 is disposed inside the nozzle body 11 and corresponding to the position of the nozzle 111, and preferably, the guide rod installation station 112 is integrally formed on the nozzle body 11. The guide rod mounting station 112 is provided with a guide rod mounting groove 1121 which is communicated with the nozzle 111 and is matched with the profile of the medium guide rod 12. One end of the medium guide rod 12 is inserted into the guide rod installation groove 1121 and abuts against the nozzle 111, and the other end of the medium guide rod 12 extends to the outside of the installation station and is used for being matched with the storage component 2.

Further, in the present embodiment, referring to fig. 2 and 3, the storage assembly 2 may specifically include a dose bottle 21 and a dose bottle holder 22 for assembling the dose bottle 21. The dose bottle holder 22 may be a hollow tube structure, the dose bottle 21 is inserted into the tube structure, the end of the dose bottle 21 facing the nozzle 111 is open, and the open position is provided with a limit rib for abutting against the end of the dose bottle holder 22, so as to limit the position of the dose bottle 21. Further, a piston 211 is arranged in the dose bottle 21, and a medium is stored in a space formed between the piston 211 and the dose bottle 21. It should be noted that in this embodiment, the piston 211 is provided with a liquid permeating channel 2111, which is used for allowing the medium to permeate into the medium channel 121 through the liquid permeating channel when the medium guide rod 12 presses the piston 211.

It should be noted that, in the present embodiment, referring to fig. 2 and fig. 3, an abutting ring edge 221 is disposed on an outer wall surface of the dose bottle holder 22 at an end away from the nozzle 111, one end of the elastic member 33 abuts against the trigger body 31, and the other end abuts against the abutting ring edge 221. During the process of extending, the elastic member 33 pushes the dose bottle holder 22 and the dose bottle 21 to move toward the nozzle 111, the medium guide rod 12 extends into the dose bottle 21, and presses the piston 211, so as to guide the medium into the medium flow channel 121 through the permeate flow channel 2111.

As a preferable example of this embodiment, referring to fig. 3, the configuration of the liquid-permeating flow path 2111 may specifically include a first flow path communicating with the medium flow path 121 and a second flow path communicating with the medium. The first flow channel opens on the side of the piston 211 facing the medium flow channel 121, and opens at the middle position of the piston 211. The second flow channel is opened on one side of the piston 211 facing the medium and is opened on the side of the piston 211. In this embodiment, the first flow channel is communicated with the second flow channel, and the second flow channel is provided with a plurality of flexible blocking pieces arranged at intervals. When the piston 211 is pressed by the medium guide 12, the medium stored in the dose vial 21 will flow into the second flow channel, and under the action of the pressure, the flexible barrier in the second flow channel will deform, thereby ensuring that the medium will flow into the first flow channel and eventually permeate into the medium flow channel 121 via the first flow channel.

Further, in the present embodiment, referring to fig. 8, a limiting ring groove 311 is disposed inside the trigger body 31 and at an end away from the nozzle 111, and the limiting ring groove 311 is specifically disposed around the periphery of the second limiting portion. And the limiting ring groove 311 is arranged corresponding to the abutting ring edge 221. In this embodiment, the elastic element 33 is preferably a compression spring, one end of the compression spring is sleeved on the dose bottle holder 22 and abuts against the abutting ring edge 221, and the other end of the compression spring is sleeved on the second limiting portion and abuts against the limiting ring groove 311. Thus, the limit of the compression spring can be formed, and the compression spring can only compress and extend within a preset forming range.

In this embodiment, referring to fig. 3 and 8, the trigger body 31 has a pressing recess 312 at an end thereof remote from the nozzle body 11, and the pressing recess 312 preferably matches with the profile of the thumb of the user. Further, the pressing recess 312 is provided with a trigger passage 313 extending toward the inside of the trigger body 31 for the trigger 32 to slide. The first position-limiting portion is disposed at an end of the dose holder 22 away from the nozzle 111, the second position-limiting portion is disposed at an end of the trigger channel 313 away from the pressing recess 312, and the third position-limiting portion is disposed at an end of the trigger 32 facing the nozzle 111.

As a further optimization of the present embodiment, referring to fig. 2 and fig. 3, the first position-limiting portion may be specifically a position-limiting ring edge 222 disposed on an edge of the dosage bottle holder 22 away from the nozzle 111, and the position-limiting ring edge 222 is turned toward the inner side of the dosage bottle holder 22, and preferably, the position-limiting ring edge 222 may be integrally formed on the dosage bottle holder 22, but is not limited thereto.

The second position-limiting portion may be a plurality of elastic fasteners 314 disposed along an edge of one end of the trigger channel 313 away from one end of the pressing recess 312. Preferably, the elastic clasps 314 are obliquely arranged towards the inside of the trigger channel 313, that is, the elastic clasps 314 are obliquely arranged towards the axial direction of the inside of the trigger channel 313 in the process of extending from the end of the trigger channel 313 towards the nozzle 111, so as to form a frustum-shaped structure. Further, a protrusion 3141 for engaging with the retaining ring 222 is disposed at a free end of each elastic retaining buckle 314. Furthermore, the third position-limiting portion may be a concave ring groove 321 formed around the outer wall surface of the trigger 32, and the contour of the concave ring groove 321 is adapted to the contour formed by the elastic fasteners 314.

It should be noted that, in the present embodiment, referring to fig. 9, the triggering member 32 may be a rod-shaped structure. Specifically, one end of the trigger 32 is provided with a pressing portion 322, and the opposite end thereof is provided with an expanding portion 323. The pressing portion 322 is disposed toward one side of the pressing recess 312 for being pressed by a finger of a user, and the spreading portion 323 is used for cooperating with the elastic clasps 314 to switch the elastic clasps 314 between a spreading state and a contracting state. It should be noted that in this embodiment, an annular inverted buckle 3231 is disposed at an end of the spreading portion 323 away from the pressing portion 322, and is used for being in limit fit with a free end of the elastic clasps 314.

The specific working principle of the utility model can comprise:

referring to fig. 3, when the trigger 32 is not inserted into the trigger channel 313, or the end of the trigger 32, that is, the spreading portion 323, has not yet slid to the inner region surrounded by the elastic clasps 314, the limiting ring 222 and the protrusions 3141 of the elastic clasps 314 are in a separated state, that is, there is no limiting relationship between the dose holder 22 and the trigger body 31.

Further, referring to fig. 4, when the trigger 32 continues to slide along the trigger channel 313 toward the nozzle 111, and the spreading portion 323 slides to the inner region surrounded by the elastic fasteners 314, the elastic fasteners 314 are spread, so that the protrusion 3141 and the limiting ring edge 222 are engaged with each other, and a limit occurs between the dose bottle holder 22 and the trigger body 31, so that the compressed compression spring is locked under the limit. And the ring-shaped reverse buckle 3231 is in limit fit with the free ends of the elastic buckles 314 to prevent the trigger 32 from being separated from the trigger channel 313.

Further, referring to fig. 5 and 6, when the trigger 32 continues to slide along the trigger channel 313 toward the spout 111 and the elastic clasps 314 are engaged in the concave ring groove 321, the spacing between the dose holder 22 and the trigger body 31 is released again, the compression spring is transformed from the compressed state to the extended state, and during the transformation, referring to fig. 7, the dose holder 22 and the dose bottle 21 are pushed to move toward the spout 111. When the medium guide rod 12 abuts against the piston 211, the medium stored in the dosage bottle 21 is ejected to the nasal cavity through the weeping channel 2111, the medium channel 121 and the nozzle 111 in sequence.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (10)

1. A single-dose trigger-type nasal spray device, comprising:

a nozzle assembly, a storage assembly and a trigger assembly;

the trigger assembly comprises a trigger body, a trigger piece and an elastic piece;

the trigger body is assembled on the nozzle assembly;

the storage assembly is assembled between the nozzle assembly and the trigger body;

the trigger piece is connected to the trigger body in a sliding manner; and

the elastic element is assembled on the trigger body and abuts against the storage element;

the storage component is provided with a first limiting part, the trigger body is provided with a second limiting part, and the trigger piece is provided with a third limiting part; when the trigger piece slides and the first limiting part and the second limiting part are butted, the elastic piece in a compressed state is locked; when the second limiting part and the third limiting part are in butt joint, the elastic piece is converted to an extension state from a compression state, and in the conversion process, the storage assembly is pushed to move, so that the medium in the storage assembly is sprayed to the nasal cavity through the nozzle assembly.

2. The single-dose trigger-type nasal spray device of claim 1,

the nozzle assembly comprises a nozzle body and a media guide rod;

the nozzle body and the trigger body are assembled;

one end of the nozzle body, which is far away from the trigger body, is provided with a spout;

the medium guide rod is assembled in the nozzle body, one end of the medium guide rod is abutted to the nozzle, and the other end of the medium guide rod is matched with the storage component in a acting manner; and

a medium flow passage is arranged in the medium guide rod and is communicated with the storage assembly and the nozzle; in the process of stretching, the elastic part pushes the storage assembly to move towards the direction of the nozzle, so that the medium in the storage assembly is sprayed to the nasal cavity through the medium channel and the nozzle in sequence.

3. The single-dose trigger-type nasal spray device of claim 2,

a guide rod installation station is arranged in the nozzle body and corresponds to the nozzle;

the guide rod mounting station is provided with a guide rod mounting groove communicated with the nozzle;

one end of the medium guide rod is inserted into the guide rod mounting groove and is abutted against the nozzle;

the other end of the medium guide rod extends to the outside of the mounting station and is used for being matched with the storage component in an interaction mode.

4. The single-dose trigger-type nasal spray device of claim 2,

the storage assembly comprises a dose vial and a dose vial holder for assembling the dose vial;

one end of the dosage bottle, which faces the nozzle, is provided with an opening;

a piston is arranged in the dosage bottle, a medium is stored between the piston and the dosage bottle, and the piston is provided with a seepage flow channel; and

the outer wall surface of the dose bottle holder, which is far away from one end of the nozzle, is provided with an abutting annular edge;

one end of the elastic piece is abutted against the trigger body, and the other end of the elastic piece is abutted against the abutting annular edge;

the elastic piece pushes the dosage bottle holder and the dosage bottle to move towards the nozzle direction in the stretching process, the medium guide rod extends into the dosage bottle, and the piston is squeezed, so that the medium is guided into the medium flow channel through the liquid seepage flow channel.

5. The single-dose trigger-type nasal spray device of claim 4,

a limiting ring groove is formed in the trigger body and at one end far away from the nozzle;

the limiting ring groove is arranged around the periphery of the second limiting part; and

the limiting ring groove and the abutting ring edge are correspondingly arranged;

the elastic piece is a compression spring, one end of the compression spring is sleeved on the dosage bottle support and is abutted against the abutting annular edge, the other end of the compression spring is sleeved on the second limiting part and is abutted against the limiting annular groove.

6. A single-dose trigger-type nasal spray device according to claim 4 or 5,

one end of the trigger body, which is far away from the nozzle body, is provided with a pressing concave part;

the pressing concave part is provided with a trigger channel which extends towards the interior of the trigger body and is used for the trigger piece to slide;

the first limiting part is arranged at one end, far away from the nozzle, of the dosage bottle holder;

the second limiting part is arranged at one end, far away from the pressing concave part, of the trigger channel;

the third limiting part is arranged at one end, facing the nozzle, of the trigger piece.

7. The single-dose trigger-type nasal spray device of claim 6,

the first limiting part is a limiting ring edge which is arranged on the edge of one end of the dosage bottle support, which is far away from the nozzle, and the limiting ring edge is arranged towards the inner side of the dosage bottle support in a rolling manner; and

the second limiting part is a plurality of elastic abutting buckles arranged at intervals along the edge of one end of the trigger channel, and the elastic abutting buckles are obliquely arranged towards the inside of the trigger channel; the free end of each elastic abutting buckle is provided with a lug which is used for being clamped and matched with the edge of the limiting ring; and

the third limiting part is a concave ring groove formed around the outer wall surface of the trigger piece; the contour of the concave ring groove is matched with the contour formed by the elastic buckles;

when the end part of the trigger piece slides into the elastic support buckles in the sliding process of the trigger piece, the elastic support buckles are spread, so that the lug and the limit ring are in clamping fit to lock the elastic piece in a compressed state; when a plurality of elasticity is supported the knot inlay card in the concave ring inslot, the elastic component is converted to the extension state by compression state, and in the in-process of conversion, promotes dose bottle holds in the palm with the motion of dose bottle makes the medium pass through in proper order the medium runner with the spout sprays to the nasal cavity.

8. The single-dose trigger-type nasal spray device of claim 7,

the trigger piece is of a rod-shaped structure;

one end of the trigger piece is provided with a pressing part, and the opposite end of the trigger piece is provided with a spreading part;

the pressing part is used for being pressed by fingers of a user, and the expanding part is matched with the elastic buckles so as to switch the elastic buckles between an expanding state and a contracting state; and

one end of the opening part, which is far away from the pressing part, is provided with an annular inverted buckle which is used for being in limit fit with the free end of the elastic abutting buckle.

9. A single dose trigger-type nasal spray device according to any one of claims 1 to 5,

the trigger body is of a flat shell structure;

and the two sides of the trigger body are respectively provided with a holding part for holding the hand of a user.

10. A single dose trigger-type nasal spray device according to any one of claims 2 to 5,

one end of the nozzle body facing the trigger body forms a butt joint part; and

the trigger body is arranged in an opening manner towards one end of the nozzle body so as to be used for butting the butting part;

the inner edge of the trigger body is provided with a fixed column, and one end of the fixed column facing the nozzle body is provided with a plurality of buckling positions; and

the butt joint part of the nozzle body is provided with a plurality of extending columns extending into the trigger body, and the free end of each extending column is provided with a buckle;

the nozzle body is fixed on the trigger body, the plurality of buckles and the plurality of buckling positions are arranged in a one-to-one correspondence mode, and the buckles and the buckling positions in each opposite position are in buckling fit, so that the nozzle body is fixed on the trigger body.

Images