CN219963726U - single dose nasal spray device - Google Patents

Abstract

The utility model discloses a single-dose nasal spray device which comprises a nasal driver body, wherein a feeding cavity, a discharging cavity and a liquid outlet which are communicated are formed in the inner wall of the nasal driver body, an adaptive driving rod is movably arranged on the inner wall of the discharging cavity through a mounting seat, the mounting seat is fixedly arranged at one end, far away from the feeding cavity, of the discharging cavity, a liquid inlet channel which is communicated with the liquid outlet is formed in the inner wall of the driving rod, a bottom cover is movably arranged at one end, far away from the discharging cavity, of the inner wall of the feeding cavity through a connecting assembly, and a plurality of limiting steps I are fixedly arranged at one end, close to the discharging cavity, of the inner wall of the feeding cavity. The utility model ensures the stability of delivered dose, ensures the spray mode and form, adopts a specially designed sealing rubber plug, and when the sealing rubber plug is pressed, the solution passes through the side surface of the rubber plug and enters the spray head to be sprayed, thereby reducing the risk of parts, no needle tube puncture and chip falling, and not affecting the spraying rate, the spray form and the delivered dose due to the difference of pressing force of a user.

Description

Single dose nasal spray device

Technical Field

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

Background

The nasal spray device is a special device for nasal spray, is used for directly delivering medicines to nasal cavities, especially nasal mucosa, and can prevent or treat nasal cavity diseases and disorders. The single dose nasal spray device can spray one medicament at a time.

In the use process, the dosage bottle with the medicament is placed into the nasal spray device, then the liquid discharged from the nasal spray device is aligned and placed into the nose, and the medicament in the dosage bottle can be sprayed into the nasal cavity by pressing the pump head, so that the medicament feeding is completed. In the pressing process, one hand holds the nasal spray device body, the other hand presses the pressure pump head, and if the force is too large in the pressing process, on one hand, the pressing force is increased to spray larger medicament, and on the other hand, the nasal spray device is further moved into the nasal cavity; the nasal cavity is impacted by the sprayed medicament, and even the nasal cavity is punctured by the nasal spray device body, so that the nasal cavity has certain danger.

In summary, the existing single-dose nasal spray device can affect the spray rate and spray pattern due to the difference of pressing force of different users, and the risk of puncturing the nasal cavity can be caused during use.

Disclosure of Invention

The present utility model is directed to a single dose nasal spray device to solve the above-mentioned problems.

In order to solve the technical problems, the utility model provides the following technical scheme: the single-dose nasal spray device comprises a nasal driver body, wherein the inner wall of the nasal driver body is provided with a feeding cavity, a discharging cavity and a liquid outlet which are communicated, the inner wall of the discharging cavity is movably provided with a driving rod which is matched with the inner wall of the discharging cavity through a mounting seat, the mounting seat is fixedly arranged at one end of the discharging cavity far away from the feeding cavity, the inner wall of the driving rod is provided with a liquid inlet channel which is communicated with the liquid outlet, one end of the feeding cavity far away from the discharging cavity is movably provided with a bottom cover through a connecting component, a plurality of limiting steps I are fixedly arranged at one end of the feeding cavity near the discharging cavity, the inner wall of the bottom cover is slidably connected with a medicine feeding mechanism through a through hole, the automatic medicine feeding device is used for guaranteeing that a medicine feeding mechanism is collinear with a central shaft of a feeding cavity, the outer wall of the medicine feeding mechanism is connected with the inner wall of the feeding cavity through a limiting mechanism and used for controlling the position of the medicine feeding mechanism, the inner wall of a bottom cover is provided with a spring groove communicated with a through hole, the medicine feeding mechanism comprises a medicine feeding cylinder, a knob, a limiting groove and a limiting elastic piece, the inner wall of the medicine feeding cylinder is close to one end of a discharging cavity and is movably provided with a dosage bottle, a piston is movably arranged on the inner wall of the dosage bottle, the opening end of the dosage bottle extends to the inner wall of the discharging cavity and is movably connected with an installation seat, and the limiting step is movably connected with the end part of the medicine feeding cylinder.

Further, the spacing groove symmetry is located send the middle part of cartridge case inner wall, the spacing inslot wall is equipped with spacing shell fragment, the tip of spacing shell fragment extends to send in the inner chamber of cartridge case, send the cartridge case outer wall to keep away from ejection of compact chamber one end extends to the nose is equipped with the knob in the driver body outside for control send the cartridge case to rotate, thereby drive the medicament bottle and rotate in step.

Further, the bottom end of the dosage bottle is movably connected with the top end of the limiting elastic piece, and the piston is a sealing rubber plug and is used for enabling solution to pass through the side face of the piston and enter the liquid outlet for spraying.

Further, stop gear includes elasticity buckle, spring, spacing step two, spacing step three and spacing step four, send the cartridge case outer wall in spacing groove top is equipped with two the elasticity buckle, spacing step two spacing step three with spacing step four all are located the middle part of feeding intracavity wall, homonymy the elasticity buckle activity is located spacing step two with between the spacing step three, spacing step four is located spacing step two with between the spacing step three, the spring movable sleeve is located the spring groove with send between the cartridge case, the spring is located spacing shell fragment with between the spring groove for control spacing shell fragment reciprocates.

Further, the radius of the inner ring of the discharging cavity is smaller than that of the inner ring of the feeding cavity, the central line axis of the limiting groove is collinear with the central line axis of the through hole, the two limiting steps II are symmetrical with respect to the center of the circle of the feeding cavity, the two limiting steps III are symmetrical with respect to the center of the circle of the feeding cavity, the two elastic buckles are symmetrical with respect to the center of the circle of the feeding cavity, and the limiting steps II and the limiting steps are matched in a three-phase mode.

Further, the bottom with feeding intracavity wall looks adaptation, coupling assembling includes fixture block and the draw-in groove of looks adaptation, the draw-in groove is located feeding intracavity wall is kept away from ejection of compact chamber one end, the fixture block is located the bottom outer wall, the fixture block with draw-in groove joint for install the bottom fast.

Compared with the prior art, the utility model has the following beneficial effects:

the utility model adopts a rotary mode to trigger and uses a spring to drive, so that the initial pressing force is small, the problem caused by the difference of pressing force of a user is avoided, the stability of delivered dose is ensured, the spraying mode and the form are ensured, a specially designed sealing rubber plug is adopted, when the pressing is adopted, the solution passes through the side surface of the rubber plug and enters the spray head to spray, the parts are reduced, the risk of needle tube puncture and chip falling is avoided, and the spraying speed, the spraying form and the delivered dose are not influenced by the difference of the pressing force of the user.

The utility model has the advantages of small and portable appearance, no waste of materials, fewer parts of the device, fewer assembly process steps, convenience for assembly of clients and innovation, and meets the stability of delivering doses.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is a cross-sectional view of the entirety of the present utility model;

FIG. 3 is an enlarged view of a portion of the utility model at A in FIG. 2;

FIG. 4 is a longitudinal cross-sectional view of a cartridge according to the present utility model;

FIG. 5 is a cross-sectional view of a drive rod of the present utility model;

FIG. 6 is a bottom view of the piston of the present utility model;

FIG. 7 is a top view of a piston of the present utility model;

FIG. 8 is a schematic view of the structure of the mounting base of the present utility model;

FIG. 9 is a schematic view of a third limiting step in the present utility model;

FIG. 10 is a transverse cross-sectional view of a cartridge of the present utility model;

FIG. 11 is a schematic view of the structure of a cartridge of the present utility model;

in the figure: 1. a nasal driver body; 2. a liquid outlet; 3. a mounting base; 4. a driving rod; 5. a liquid inlet channel; 6. a bottom cover; 7. a first limiting step; 8. a through hole; 9. a spring groove; 10. delivering a cartridge; 11. a knob; 12. a limit groove; 13. a limiting spring plate; 14. a dosage bottle; 15. a piston; 16. an elastic buckle; 17. a spring; 18. a limiting step II; 19. a limiting step III; 20. a limit step IV; 21. a clamping block; 22. a clamping groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 11, the present utility model provides the following technical solutions: the single-dose nasal spray device comprises a nose driver body 1, a feeding cavity, a discharging cavity and a liquid outlet 2 which are communicated are formed in the inner wall of the nose driver body 1, a driving rod 4 which is matched with the inner wall of the discharging cavity is movably arranged through a mounting seat 3, the mounting seat 3 is fixedly arranged at the position of the discharging cavity, which is far away from one end of the feeding cavity, a liquid inlet channel 5 which is communicated with the liquid outlet 2 is formed in the inner wall of the driving rod 4, a bottom cover 6 is movably arranged at one end of the discharging cavity through a connecting component, the inner wall of the feeding cavity is close to one end of the discharging cavity, a plurality of limiting steps 7 are fixedly arranged at one end of the discharging cavity, a medicine feeding mechanism is slidably connected to the inner wall of the bottom cover 6 through a through hole 8 and is used for guaranteeing collineation of a central shaft of the feeding cavity, the outer wall of the medicine feeding mechanism is connected with the inner wall of the feeding cavity, a spring groove 9 which is communicated with the through hole 8 is formed in the inner wall of the mounting seat 3, the medicine feeding mechanism comprises a medicine feeding cylinder 10, a 11, a limiting groove 12 and a limiting spring 13, the inner wall 10 is arranged at the inner wall of the medicine feeding mechanism is close to one end of the discharging cavity, which is movably connected with a piston 14, and a piston 14 is movably connected to one end of the piston 15, and is movably arranged at the end of the piston 14.

Referring to fig. 1, 4, 10 and 11, the limiting groove 12 is symmetrically disposed in the middle of the inner wall of the medicine feeding tube 10, the inner wall of the limiting groove 12 is provided with the limiting elastic piece 13, the end of the limiting elastic piece 13 extends into the inner cavity of the medicine feeding tube 10, the outer wall of the medicine feeding tube 10 is far away from one end of the discharging cavity and extends to the outer side of the nasal driver body 1, the knob 11 is provided for controlling the medicine feeding tube 10 to rotate, so as to drive the medicine bottle to rotate synchronously, the bottom end of the medicine bottle 14 is movably connected with the top end of the limiting elastic piece 13, and the piston 15 is a sealing rubber plug for injecting the solution from the side surface of the piston 15 through the inlet liquid outlet 2.

Referring to fig. 6-11, the limiting mechanism includes an elastic buckle 16, a spring 17, a limiting step two 18, a limiting step three 19 and a limiting step four 20, two elastic buckles 16 are disposed on the top of the limiting groove 12 on the outer wall of the feeding cylinder 10, the limiting step two 18, the limiting step three 19 and the limiting step four 20 are disposed in the middle of the inner wall of the feeding cavity, the elastic buckles 16 on the same side are movably disposed between the limiting step two 18 and the limiting step three 19, the limiting step four 20 is disposed between the limiting step two 18 and the limiting step three 19, the spring 17 is movably sleeved between the spring groove 9 and the feeding cylinder 10, and the spring 17 is disposed between the limiting spring piece 13 and the spring groove 9 for controlling the limiting spring piece 13 to move up and down.

In particular, the radius of the inner ring of the discharging cavity is smaller than that of the inner ring of the feeding cavity, the central line axis of the limiting groove 12 is collinear with the central line axis of the through hole 8, the two limiting steps II 18 are symmetrical about the center of the feeding cavity, the two limiting steps III 19 are symmetrical about the center of the feeding cavity, the two elastic buckles 16 are symmetrical about the center of the feeding cavity, the limiting steps II 18 and the limiting steps III 19 are matched, the bottom cover 6 is matched with the inner wall of the feeding cavity, the connecting assembly comprises a clamping block 21 and a clamping groove 22 which are matched with each other, the clamping groove 22 is arranged on the inner wall of the feeding cavity, far away from one end of the discharging cavity, the clamping block 21 is arranged on the outer wall of the bottom cover 6, and the clamping block 21 is clamped with the clamping groove 22 and used for rapidly installing the bottom cover 6.

The specific implementation mode is as follows: when in use, firstly, in the production process, the driving rod 4, the medicine feeding cylinder 10, the spring 17 and the bottom cover 6 are placed into the nasal driver body 1 one by one, specifically as follows: the driving rod 4 is aligned and inserted into the mounting seat 3, so that the liquid inlet channel 5 is communicated with the liquid outlet 2, one end of the medicine feeding cylinder 10 far away from the knob 11 is aligned and inserted into the feeding cavity until the end part of the medicine feeding cylinder 10 enters the discharging cavity, the outer wall of the medicine feeding cylinder 10 is contacted with the first limiting step 7, the spring 17 is sleeved on the outer wall of the medicine feeding cylinder 10 through the knob 11, the bottom cover 6 is sleeved on the outer wall of the medicine feeding cylinder 10 through the through hole 8, meanwhile, the clamping block 21 on the outer wall of the bottom cover 6 is clamped with the clamping groove 22 on the inner wall of the nasal driver body 1, so that the bottom cover 6 is fixed at the bottom of the nasal driver body 1, and the medicine feeding cylinder 10 is limited through the bottom cover 6 and the first limiting step 7, so that the central axis of the medicine feeding cylinder 10 is collinear with the central axis of the nasal driver body 1; the elastic buckle 16 is limited through the limiting step II 18, so that the medicine feeding cylinder 10 is limited, the medicine feeding cylinder 10 is prevented from rotating anticlockwise, and the elastic buckle 16 is positioned between the limiting step II 18 and the limiting step III 19; secondly, in the initial state, the spring 17 is in a compressed state, when a user needs to use, the user puts the piston 15 into the dosage bottle 14 filled with the solution, aligns the opening end of the dosage bottle 14 and puts the dosage bottle into the inner wall of the medicine feeding cylinder 10, when the dosage bottle 14 passes through the limiting elastic piece 13, the end part of the limiting elastic piece 13 is deformed and moves outwards due to external force, so that the dosage bottle 14 smoothly passes through the limiting groove 12 until the opening end of the dosage bottle 14 is connected with the mounting seat 3, and the mounting is completed; thirdly, when the device is used, one hand aims at the nasal cavity, the knob 11 is rotated clockwise to press the liquid outlet 2, the knob 11 drives the medicine feeding tube 10 to synchronously rotate, the medicine feeding tube 10 drives the elastic buckle 16 to cross the limit step III 19, when the device rotates to avoid the limit step IV 20, the elastic force of the spring 17 can push the medicine feeding tube 10 to finish delivering a dose, and when the device is pressed, the solution passes through the side face of the piston 15 and enters the liquid inlet channel 5 and the liquid outlet 2 and finally is sprayed to the nasal cavity, so that the assembly process steps are reduced, and the risk of needle tube puncture and chip falling is avoided.

The working principle of the utility model is as follows:

the utility model adopts a rotary mode to trigger and uses the spring 17 to drive, so that the initial pressing force is small, the problem caused by the pressing force difference of a user is avoided, the stability of the delivered dose is ensured, the spraying mode and the form are ensured, a specially designed sealing rubber plug is adopted, when the pressure is applied, the solution passes through the side surface of the rubber plug and enters the spray head to spray, the risk of falling scraps is reduced, the spraying speed, the spraying form and the delivered dose are not influenced by the pressing force difference of the user, the utility model has the advantages of small and portable appearance, no waste of materials, fewer parts of the device, fewer assembly process steps, convenience for customer assembly and innovation.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (6)

1. Single dose nasal spray device, its characterized in that: including nose driver body (1), nose driver body (1) inner wall is equipped with feed chamber, ejection of compact chamber and liquid outlet (2) that are linked together, ejection of compact chamber inner wall is equipped with looks adaptation actuating lever (4) through mount pad (3) activity, mount pad (3) are fixed to be located ejection of compact chamber is kept away from feed chamber one end, actuating lever (4) inner wall be equipped with liquid inlet channel (5) that liquid outlet (2) are linked together, feed chamber inner wall is kept away from ejection of compact chamber one end is equipped with bottom (6) through the coupling assembling activity, feed chamber inner wall is close to ejection of compact chamber one end is fixed to be equipped with a plurality of spacing steps one (7), bottom (6) inner wall is through hole (8) sliding connection have medicine feeding mechanism for guarantee medicine feeding mechanism and feed chamber's center pin collineation, medicine feeding mechanism outer wall through spacing mechanism with feed chamber inner wall is connected for control medicine feeding mechanism's position, bottom (6) inner wall be equipped with spring groove (9) that through hole (8) are linked together, medicine feeding mechanism (10), medicine cartridge (14) are equipped with piston (14) are close to one end of activity bottle (14) through-shaped medicine feed mechanism, medicine cylinder (10) is equipped with piston (14), the opening end of the dosage bottle (14) extends to the inner wall of the discharging cavity to be movably connected with the mounting seat (3), and the limiting step I (7) is movably connected with the end part of the medicine feeding cylinder (10).

2. The single dose nasal spray device of claim 1, wherein: the utility model discloses a nose driver, including send cartridge (10) and nose driver body (1), send cartridge (10) and nose driver body (1) to send cartridge (10) to send, send cartridge (10) and send the middle part of cartridge (10) inner wall to locate spacing groove (12) symmetry, spacing groove (12) inner wall is equipped with spacing shell fragment (13), the tip of spacing shell fragment (13) extends to send in the inner chamber of cartridge (10), send cartridge (10) outer wall to keep away from ejection of compact chamber one end extends to the nose driver body (1) outside is equipped with knob (11) for control send cartridge (10) to rotate.

3. The single dose nasal spray device of claim 2, wherein: the bottom end of the dosage bottle (14) is movably connected with the top end of the limiting elastic piece (13), the piston (15) is a sealing rubber plug, and the piston (15) is movably connected with the driving rod (4).

4. The single dose nasal spray device of claim 1, wherein: the limiting mechanism comprises an elastic buckle (16), a spring (17), a limiting step II (18), a limiting step III (19) and a limiting step IV (20), wherein two elastic buckles (16) are arranged at the top of a limiting groove (12) on the outer wall of the feeding cylinder (10), the limiting step II (18), the limiting step III (19) and the limiting step IV (20) are all arranged in the middle of the inner wall of the feeding cavity, the elastic buckles (16) on the same side are movably arranged between the limiting step II (18) and the limiting step III (19), the limiting step IV (20) is arranged between the limiting step II (18) and the limiting step III (19), the spring (17) is movably sleeved between the spring groove (9) and the feeding cylinder (10), and the spring (17) is arranged between the limiting elastic sheet (13) and the spring groove (9).

5. The single dose nasal spray device of claim 4, wherein: the radius of the inner ring of the discharging cavity is smaller than that of the inner ring of the feeding cavity, the central line axis of the limiting groove (12) is collinear with the central line axis of the through hole (8), the two limiting steps II (18) are symmetrical about the center of the feeding cavity, the two limiting steps III (19) are symmetrical about the center of the feeding cavity, and the two elastic buckles (16) are symmetrical about the center of the feeding cavity.

6. The single dose nasal spray device of claim 1, wherein: the bottom cover (6) is matched with the inner wall of the feeding cavity, the connecting assembly comprises a clamping block (21) and a clamping groove (22) which are matched with each other, the clamping groove (22) is formed in the inner wall of the feeding cavity and away from one end of the discharging cavity, the clamping block (21) is formed in the outer wall of the bottom cover (6), and the clamping block (21) is clamped with the clamping groove (22).