A side-press nasal spray device

Abstract

The utility model provides a kind of side press nose spray device, it includes: outer shell, bottle, air inlet component, liquid inlet component and liquid outlet component, the bottle is used to store medicament, the air inlet component, the liquid inlet component and the liquid outlet component are all located in the outer shell, the air inlet component is connected in the bottle top, the liquid outlet component, the liquid inlet component and the air inlet component are sequentially connected from top to bottom;The air inlet component is connected with the bottle and the liquid inlet component by a liquid guide pipe.The utility model solves the technical problem caused by the inconvenient operation mode of the unseparated gas-liquid channel of traditional nose spray device.

Description

Technical Field

[0001] This utility model relates to the field of nasal spray drug delivery technology, and more specifically to a side-press nasal spray device. Background Technology

[0002] Currently, conventional nasal spray devices on the market generally suffer from the following technical defects: First, the lack of a separate air-liquid channel design in traditional nasal spray pumps makes the medication susceptible to contamination. Specifically, the air intake and liquid output share the same passage. When the pressure inside and outside the bottle is balanced, external air directly enters the bottle in the reverse direction through the liquid output channel. Bacteria carried in the air (such as Staphylococcus aureus and Escherichia coli) can easily mix with the medication, causing contamination and affecting the efficacy and safety of the drug. Second, traditional devices rely on vertical pressing operation, requiring users to apply force with multiple fingers (such as using the index and middle fingers to hold the nozzle and press). This requires significant force and can easily cause relative displacement between the nozzle and the nasal cavity, affecting the accuracy of drug delivery. In addition, the vertical force direction is consistent with the spray direction, making the nozzle prone to shaking during pressing, further reducing the accuracy of drug delivery. Third, the connection structure between the nozzle and the pump core in traditional devices is not stable enough, which poses a risk of nozzle detachment. In addition, the vertical pressing design does not restrict the direction of the triggering force. Accidental contact or dropping of the device can easily trigger the spray due to external force, resulting in residual liquid contaminating the nozzle or dust cover. Utility Model Content

[0003] The purpose of this invention is to overcome the defects of the prior art and provide a side-press nasal spray device, which aims to solve the technical problems caused by the lack of separation of gas and liquid channels and inconvenient operation of traditional nasal spray devices.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A side-press nasal spray device includes: a housing, a bottle, an air inlet assembly, a liquid inlet assembly, and a liquid outlet assembly. The bottle is used to store the medication. The air inlet assembly, the liquid inlet assembly, and the liquid outlet assembly are all disposed within the housing. The air inlet assembly is connected to the top of the bottle, and the liquid outlet assembly, the liquid inlet assembly, and the air inlet assembly are connected sequentially from top to bottom. The air inlet assembly connects the bottle and the liquid inlet assembly via a liquid guide tube.

[0006] The liquid inlet assembly includes a piston assembly and a liquid inlet body. The piston assembly is slidably connected to the liquid inlet body and the side wall of the outer shell. The liquid inlet body is provided with a liquid suction channel, a first liquid storage tank and a liquid guiding channel connected in sequence. The liquid suction channel is connected to the air inlet assembly. The extension direction of the first liquid storage tank is perpendicular to the side wall of the outer shell. The liquid guiding channel is connected to the liquid outlet assembly.

[0007] In one embodiment, the piston assembly includes a pressing cap, a piston member, and an elastic member. The pressing cap is fixedly connected to the piston member, and one end of the elastic member is connected to the piston member and the other end is connected to the liquid inlet body. Pressing the pressing cap causes the piston member to slide along the first liquid storage tank. A second liquid storage tank is provided at one end of the piston member near the liquid inlet body. The liquid suction channel, the first liquid storage tank, the second liquid storage tank, and the liquid guiding channel are connected in sequence.

[0008] In one embodiment, the piston is embedded in the press cover, the press cover is provided with a hook portion, the piston is provided with a locking portion, and the hook portion is locked into the locking portion.

[0009] In one embodiment, the liquid dispensing assembly includes a nozzle and a liquid dispensing valve. The nozzle is connected to the top of the outer casing, and a liquid dispensing groove is provided inside the nozzle. The liquid dispensing valve is movably assembled inside the liquid storage groove.

[0010] In one embodiment, the liquid outlet valve includes a valve body column and a movable spring. One end of the movable spring is connected to the liquid inlet assembly, and the other end is connected to the inside of the valve body column, so as to drive the valve body column to move up and down inside the nozzle. The outer wall of the valve body column and the inner wall of the nozzle form a liquid outlet channel, and the liquid outlet channel is connected to the liquid inlet assembly.

[0011] In one embodiment, when there is no liquid pressure in the liquid outlet channel, the valve body column is in an upward state, and the upper end of the valve body column blocks the upper end of the liquid outlet channel and the nozzle of the spray head;

[0012] When there is liquid pressure in the outlet channel, the valve body column is in a downward state, and the upper end of the outlet channel is connected to the nozzle.

[0013] In one embodiment, the liquid inlet body extends upward and is provided with a first connecting wall, and the nozzle is provided with a first connecting groove, wherein the first connecting wall is engaged in the first connecting groove.

[0014] In one embodiment, the air intake assembly includes a snap-on cap and a filter unit. The snap-on cap is connected to the top of the bottle body, and the filter unit is disposed inside the snap-on cap. The snap-on cap includes a connecting portion and a functional portion. The connecting portion extends outward and downward from the bottom of the functional portion. The connecting portion includes a second connecting wall and a sealing post extending downward from the top of the second connecting wall. The sealing post is disposed inside the second connecting wall. A first buckle is provided on the inner wall of the second connecting wall, and a second buckle is provided on the outer circumferential surface of the bottle body. The first buckle is engaged with the second buckle, and the outer wall of the sealing post abuts against the inner wall of the bottle body. The functional portion includes a third connecting wall and a filter unit disposed within the third connecting wall. The filter unit communicates with the sealing post.

[0015] In one embodiment, a first air inlet is provided between the piston assembly and the outer casing, and a second air inlet is provided between the liquid inlet body and the third connecting wall; a second connecting groove is formed between the third connecting wall and the filter section, and a fourth connecting wall extends downward from the liquid inlet body, with a third air inlet provided between the fourth connecting wall and the second connecting groove; an air inlet hole is provided on the side wall of the filter section, and the filter unit is disposed inside the filter section; the first air inlet, the second air inlet, the third air inlet, the air inlet hole, the filter section, the sealing column, and the bottle body are sequentially connected.

[0016] In one embodiment, the top of the connecting portion extends downward to provide a liquid inlet column, the two ends of the liquid inlet column are respectively connected to the bottle body and the liquid inlet assembly, and the liquid guide tube is embedded in the liquid inlet column so that the bottle body is connected to the liquid inlet assembly via the liquid guide tube.

[0017] The advantages of this invention compared to existing technologies are as follows: Multiple optimizations are achieved through the physical separation of the liquid inlet component and the air inlet component, along with a side-press operation design. The air inlet component is connected to the bottle via an independent liquid guide tube, allowing external gas to balance the internal pressure through an independent channel. The liquid inlet component forms a liquid delivery path through a closed suction channel, a first liquid storage tank, and a liquid guide channel. The two components are completely isolated, effectively preventing airborne bacteria from mixing into the liquid and ensuring its sterility. Simultaneously, the side-press design, through the lateral sliding connection between the piston assembly and the side wall of the outer shell, allows the user to trigger the spray with a single finger push. This operation is effortless, and the force applied is perpendicular to the spray direction, preventing nozzle displacement and improving drug delivery accuracy. Furthermore, the lateral pressure requires active driving of the piston assembly to slide, preventing accidental spraying due to accidental contact or drops. Combined with the gas-liquid separation structure, this reduces component friction, enhances the mechanical stability of the nozzle and pump core, and prevents the risk of dislodgement.

[0018] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model, it can be implemented according to the contents of the specification. In order to make the above and other objects, features and advantages of this utility model more obvious and easy to understand, the following are preferred embodiments, which are described in detail below. Attached Figure Description

[0019] Figure 1 A schematic diagram of the overall structure of a side-press nasal spray device provided by this utility model;

[0020] Figure 2 An exploded schematic diagram of a side-press nasal spray device provided by this utility model;

[0021] Figure 3 A schematic diagram of the structure of a side-press nasal spray device after removing the dust cover, provided by this utility model;

[0022] Figure 4 A cross-sectional schematic diagram of the initial state of a side-press nasal spray device provided by this utility model;

[0023] Figure 5 A partial schematic diagram of the gas-liquid path of the piston assembly in the reset state of a side-press nasal spray device provided by this utility model;

[0024] Figure 6 A cross-sectional schematic diagram of a side-press nasal spray device in the pressed state provided by this utility model;

[0025] Figure 7 A partial schematic diagram of the liquid path in the ejection state of the piston assembly of the side-press nasal spray device provided by this utility model.

[0026] Figure Labels

[0027] 1. Outer shell; 2. Bottle body; 21. Second buckle;

[0028] 3. Air intake assembly; 31. Press-fit cover; 311. Connecting part; 3111. Second connecting wall; 3112. Sealing column; 3113. First snap-fit; 3114. Liquid inlet column; 312. Functional part; 3121. Third connecting wall; 3122. Filter part; 3123. Air inlet; 32. Filter unit; 321. Filter sleeve; 322. Antibacterial membrane; 323. Inner filter ring; 33. First air intake channel; 34. Second air intake channel; 35. Second connecting groove; 36. Third air intake channel;

[0029] 4. Liquid inlet assembly; 41. Piston assembly; 411. Press cap; 4111. Hook; 412. Piston component; 4121. Second liquid storage tank; 4122. Snap-fit ​​part; 413. Elastic component; 42. Liquid inlet body; 421. Liquid suction channel; 422. First liquid storage tank; 423. Liquid guiding channel; 424. First connecting wall; 425. Fourth connecting wall;

[0030] 5. Liquid dispensing assembly; 51. Nozzle; 511. Liquid dispensing tank; 512. Liquid dispensing channel; 513. First connecting groove; 514. Nozzle; 52. Liquid dispensing valve; 521. Valve body column; 522. Movable spring;

[0031] 6. Dust cover; 7. Liquid guide tube. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0034] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0035] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0036] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0037] See Figures 1 to 7 As shown in the figure, this utility model discloses a side-press nasal spray device, including: an outer shell 1, a bottle 2, an air inlet assembly 3, a liquid inlet assembly 4, and a liquid outlet assembly 5. The bottle 2 is used to store the medicine. The air inlet assembly 3, the liquid inlet assembly 4, and the liquid outlet assembly 5 are all disposed inside the outer shell 1. The air inlet assembly 3 is connected to the top of the bottle 2. The liquid outlet assembly 5, the liquid inlet assembly 4, and the air inlet assembly 3 are connected sequentially from top to bottom. The air inlet assembly 3 connects the bottle 2 and the liquid inlet assembly 4 through a liquid guide tube 7.

[0038] The liquid inlet assembly 4 includes a piston assembly 41 and a liquid inlet body 42. The piston assembly 41 is slidably connected to the liquid inlet body 42 and the side wall of the outer shell 1. The liquid inlet body 42 is provided with a liquid suction channel 421, a first liquid storage tank 422 and a liquid guiding channel 423 connected in sequence. The liquid suction channel 421 is connected to the air inlet assembly 3. The extension direction of the first liquid storage tank 422 is perpendicular to the side wall of the outer shell 1. The liquid guiding channel 423 is connected to the liquid outlet assembly 5.

[0039] Specifically, gas-liquid separation and lateral pressing operation are achieved through a modular, layered layout. The outer casing 1 integrates a liquid outlet assembly 5, a liquid inlet assembly 4, and an air inlet assembly 3. The liquid inlet assembly 4 includes a piston assembly 41 and a liquid inlet body 42. The liquid inlet body 42 contains a liquid suction channel 421, a first liquid storage tank 422, and a liquid guiding channel 423, forming an independent liquid delivery path. The air inlet assembly 3 connects the bottle body 2 and the liquid inlet assembly 4 via a liquid guiding pipe 7, allowing filtered external air to be added to the bottle body 2, physically isolated from the liquid delivery channel. When the user presses the liquid inlet assembly 4 on the side wall of the outer casing 1, the piston assembly 41 slides laterally perpendicular to the outer casing 1, sealing the inlet of the first liquid storage tank 422. The liquid pre-stored in the first liquid storage tank 422 and the piston assembly 41 is squeezed into the liquid guiding channel 423, enters the liquid outlet assembly 5, and is ejected. After the user releases the liquid inlet assembly 4, the piston assembly 41 resets, and a vacuum negative pressure is formed in the first liquid storage tank 422. New medicine is drawn from the bottle body 2 through the liquid suction channel 421 and temporarily stored in the first liquid storage tank 422 and the piston assembly 41. At the same time, air is replenished into the bottle body 2 through the air intake assembly 3.

[0040] Understandably, by employing a lateral sliding connection structure between the piston assembly 41 and the side wall of the outer casing 1, the user only needs to use a single finger to push the piston assembly 41 laterally against the outer wall of the outer casing 1 to trigger the spray. The direction of force is perpendicular to the spray direction, completely eliminating the problem of relative displacement between the nozzle 51 and the nasal cavity caused by traditional vertical pressing, ensuring accurate drug delivery. The lateral force application action conforms to the natural grip posture of the human body, reducing the operating force and increasing user comfort. At the same time, lateral pressure requires active driving of the piston assembly 41 to slide. When the device is placed naturally, the side wall of the outer casing 1 is rigidly supported by the bottle body 2, and external force cannot be directly transmitted to the internal components, reducing the risk of accidental spraying caused by accidental touch or drop. Meanwhile, the air inlet assembly 3 and the liquid inlet assembly 4 are connected to the bottle body 2 through different paths, and the air-liquid channels are physically isolated to prevent bacterial air from contaminating the liquid. Lateral force application avoids displacement of the nozzle 51, improving operational stability.

[0041] In one embodiment, the piston assembly 41 includes a pressing cover 411, a piston member 412, and an elastic member 413. The pressing cover 411 is fixedly connected to the piston member 412. One end of the elastic member 413 is connected to the piston member 412, and the other end is connected to the liquid inlet body 42. By pressing the pressing cover 411, the piston member 412 is slidably connected along the first liquid storage tank 422. A second liquid storage tank 4121 is provided at one end of the piston member 412 near the liquid inlet body 42. The liquid suction channel 421, the first liquid storage tank 422, the second liquid storage tank 4121, and the liquid guiding channel 423 are sequentially connected.

[0042] Specifically, the piston assembly 41 adopts an elastic reset structure. The segmented storage and delivery of the liquid medicine is achieved through the linkage between the pressing cap 411 and the piston 412. The second storage tank 4121 and the first storage tank 422 are connected in series to form a "two-stage buffer chamber," reducing the impact of liquid flow. When the user presses the pressing cap 411, the piston 412 compresses the elastic element 413 and slides into the liquid inlet body 42. At this time, the second storage tank 4121 and the first storage tank 422 are connected. The liquid medicine is delivered sequentially through the first storage tank 422, the second storage tank 4121, and the liquid guiding channel 423 after being squeezed by the piston 412. After the user releases the pressing cap 411, the elastic element 413 rebounds, the piston 412 resets, and the first storage tank 422 and the second storage tank 4121 simultaneously form a negative pressure to draw in and store the liquid medicine. It can be understood that the elastic element 413 in this embodiment is a reset spring.

[0043] In one embodiment, the piston 412 is embedded in the press cover 411, the press cover 411 is provided with a hook portion 4111, the piston 412 is provided with a locking portion 4122, and the hook portion 4111 is locked to the locking portion 4122.

[0044] Specifically, the press cover 411 is fitted with a piston 412. The inner side of the press cover 411 is provided with a hook 4111, and the outer wall of the piston 412 is provided with a locking part 4122. The two are locked together by a beveled locking. The mechanical interlock ensures that the press cover 411 and the piston 412 move synchronously, thus ensuring the working stability of the nasal spray device.

[0045] In one embodiment, the liquid dispensing assembly 5 includes a nozzle 51 and a liquid dispensing valve 52. The nozzle 51 is connected to the top of the outer casing 1, and a liquid dispensing groove 511 is provided inside the nozzle 51. The liquid dispensing valve 52 is movably assembled in the liquid storage groove.

[0046] Specifically, the liquid dispensing assembly 5 adopts a separate design for the nozzle 51 and the dispensing valve 52. The nozzle 51 has a dispensing tank 511 for conveying the liquid and assembling the dispensing valve 52, enabling dynamic opening and closing control. The separate structure facilitates maintenance and replacement, and reduces residual contamination. After the liquid enters the dispensing tank 511 through the liquid guiding channel 423, the liquid pressure pushes the dispensing valve 52 to open; after spraying is completed, the dispensing valve 52 closes in a pressure-free state, preventing the backflow of the liquid. The design capacity of the dispensing tank 511 controls the dosage of a single administration, while the separate design reduces the risk of cross-contamination.

[0047] In one embodiment, the liquid outlet valve 52 includes a valve body column 521 and a movable spring 522. One end of the movable spring 522 is connected to the liquid inlet assembly 4, and the other end is connected to the inside of the valve body column 521, so as to drive the valve body column 521 to move up and down within the nozzle 51. The outer wall of the valve body column 521 and the inner wall of the nozzle 51 form a liquid outlet channel 512, which is connected to the liquid inlet assembly 4.

[0048] Specifically, the spraying is controlled by the dynamic balance mechanism of the valve body column 521 and the movable spring 522, through the difference between the hydraulic pressure and the spring force. When the liquid pressure is greater than the spring preload, the valve body column 521 moves downward to open the liquid outlet channel 512, allowing the liquid to be sprayed from the nozzle 51. When the liquid pressure is released, the spring returns to its original position, pushing the valve body column 521 upward to seal the nozzle 514. This dynamic opening and closing control based on liquid pressure effectively avoids accidental spraying due to low pressure or leakage due to high pressure.

[0049] In one embodiment, when there is no liquid pressure in the liquid outlet channel 512, the valve body column 521 is in an upward state, and the upper end of the valve body column 521 blocks the upper end of the liquid outlet channel 512 and the nozzle 514 of the spray head 51.

[0050] When there is liquid pressure in the liquid outlet channel 512, the valve body column 521 is in a downward state, and the upper end of the liquid outlet channel 512 is connected to the nozzle 514.

[0051] Specifically, the spray start / stop control is achieved through the dynamic balance between liquid pressure and spring force, and the opening and closing of the liquid outlet channel 512 is adjusted by the vertical displacement of the valve body column 521. When the user presses the press cap 411, the liquid enters the liquid outlet channel 512 from the first liquid storage tank 422, the second liquid storage tank 4121, and the liquid guide channel 423. The pressure of the liquid entering the liquid outlet channel 512 overcomes the spring force, pushing the valve body column 521 downward. The upper end of the liquid outlet channel 512 connects with the nozzle 514, and the liquid is atomized and sprayed out through the annular gap. When the user releases the press cap 411, the liquid pressure disappears, and the spring force of the movable spring 522 pushes the valve body column 521 upward, causing its upper end to tightly seal the upper end of the liquid outlet channel 512 and the nozzle 514 of the spray head 51, blocking the flow of liquid.

[0052] In one embodiment, the liquid inlet body 42 extends upward and is provided with a first connecting wall 424, and the nozzle 51 is provided with a first connecting groove 513, the first connecting wall 424 being engaged within the first connecting groove 513.

[0053] Specifically, the first connecting wall 424 and the first connecting groove 513 are elastically engaged to achieve quick disassembly of the nozzle 51. During installation, the first connecting wall 424 is deformed by compression and then inserted into the second connecting groove 35; during disassembly, a reverse force is applied to make the connecting wall elastically recover and disengage.

[0054] In one embodiment, the air intake assembly 3 includes a snap-on cover 31 and a filter unit 32. The snap-on cover 31 is connected to the top of the bottle body 2, and the filter unit 32 is disposed inside the snap-on cover 31. The snap-on cover 31 includes a connecting portion 311 and a functional portion 312. The connecting portion 311 extends outward and downward from the bottom of the functional portion 312. The connecting portion 311 includes a second connecting wall 3111 and a sealing post 3112 extending downward from the top of the second connecting wall 3111. The sealing post 3112 is located within the second connecting wall 3111; a first buckle 3113 is provided on the inner wall of the second connecting wall 3111, and a second buckle 21 is provided on the outer circumferential surface of the bottle body 2. The first buckle 3113 is fastened to the second buckle 21, and the outer wall of the sealing post 3112 abuts against the inner wall of the bottle body 2; the functional part 312 includes a third connecting wall 3121 and a filter part 3122 located within the third connecting wall 3121, the filter part 3122 communicating with the sealing post 3112.

[0055] Specifically, the multi-stage filtration unit 32 integrated within the snap cap 31 and the meandering air intake design prevent external bacteria-laden air from directly entering the bottle body 2, ensuring the sterility of the gas replenishment process. When the user releases the snap cap 411, the air intake component 3 enters the gas replenishment stage: the negative pressure inside the bottle draws in external air through the air intake component 3, which is then purified by the filtration unit 32 before entering the bottle body 2.

[0056] In one embodiment, a first air inlet 33 is provided between the piston assembly 41 and the outer casing 1, and a second air inlet 34 is provided between the liquid inlet body 42 and the third connecting wall 3121; a second connecting groove 35 is formed between the third connecting wall 3121 and the filter section 3122, and a fourth connecting wall 425 extends downward from the liquid inlet body 42, with a third air inlet 36 provided between the fourth connecting wall 425 and the second connecting groove 35; an air inlet 3123 is provided on the side wall of the filter section 3122, and the filter unit 32 is disposed inside the filter section 3122; the first air inlet 33, the second air inlet 34, the third air inlet 36, the air inlet 3123, the filter section 3122, the sealing column 3112, and the bottle body 2 are sequentially connected.

[0057] Specifically, a complete airflow path is formed through a three-stage air intake, extending the contact time between air and the filter unit 32 and improving filtration efficiency. It is understood that gaps exist between the outer casing 1 and the press cap 411, between the outer casing 1 and the filter section 3122, and between the liquid inlet body 42 and the third connecting wall 3121. The liquid inlet body 42 and the third connecting wall 3121 surrounding the press cap 31 are designed as stepped surfaces. Outside air enters through a tiny gap into the first air inlet 3123 and connects with the filter section 3122. After being purified by the filter unit 32 of the filter section 3122, it is introduced into the bottle body 2 through the sealing column 3112. In other words, when the button is pressed, the gas is squeezed out from the bottle body 2 after passing through the liquid guide tube 7, the sealing part, the liquid inlet channel, the first liquid storage tank 422, the second liquid storage tank 4121, the liquid guide channel 423 and the liquid outlet channel 512 in sequence; when the button is pressed and rebounds, the gas is replenished into the bottle body 2 after passing through the first air inlet 33, the second air inlet 34, the third air inlet 36, the air inlet 3123, the filter part 3122 and the sealing column 3112 in sequence from the outside.

[0058] Furthermore, the filtration unit 32 includes a filter sleeve 321 tightly fitted within the filtration section 3122, a filter inner ring 323 tightly fitted within the filter sleeve 321, and an antibacterial membrane 322 fixed between the filter sleeve 321 and the filter inner ring 323. Specifically, the filter sleeve 321 serves as an outer support structure for fixing the filter inner ring 323 and the antibacterial membrane 322; the filter inner ring 323 is nested inside the filter sleeve 321, with its outer wall press-fitted to the inner wall of the filter sleeve 321 to ensure a gapless seal; the antibacterial membrane 322 is sandwiched between the filter sleeve 321 and the filter inner ring 323 and fixed by compression. It is understood that in this embodiment, the antibacterial membrane 322 is made of a breathable and waterproof material to filter bacteria in the air, ensuring the purity of the medicine solution after air enters the bottle 2.

[0059] In one embodiment, the top of the connecting part 311 extends downward to provide a liquid inlet column 3114, the two ends of the liquid inlet column 3114 are respectively connected to the bottle body 2 and the liquid inlet assembly 4, and the liquid guide tube 7 is embedded in the liquid inlet column 3114 so that the bottle body 2 is connected to the liquid inlet assembly 4 via the liquid guide tube 7.

[0060] Specifically, the liquid guide tube 7 is embedded in the liquid inlet column 3114, and the circumferential displacement of the liquid guide tube 7 is restricted by the liquid inlet column 3114 to avoid flow fluctuations or blockages caused by bending. It can be understood that the liquid inlet column 3114 connects the bottle body 2 and the liquid inlet assembly 4, that is, the top of the filter section 3122 is provided with the liquid outlet of the liquid inlet column 3114.

[0061] Furthermore, the nasal spray device in this embodiment also includes a dust cover 6. The dust cover 6 adopts a full-coverage design, which completely wraps and protects the entire liquid dispensing component 5 and the liquid inlet component 4. When the dust cover 6 is not removed, the user cannot access the drug dispensing button. Even in the event of a drop or impact, it can reliably protect the nozzle 51 and the pressing button, and will not trigger the spray, thereby preventing contamination of the nozzle 51.

[0062] In summary, the complete working process of a side-press nasal spray device in this embodiment is as follows:

[0063] When the user presses the pressing cover 411 on the side wall of the outer casing 1, the piston assembly 41 slides laterally, sealing the inlet of the first liquid storage tank 422. The pre-stored liquid is squeezed into the liquid guiding channel 423 and then enters the liquid outlet channel 512 between the valve body column 521 and the nozzle 51. The liquid pressure pushes the valve body column 521 to move down and compress the movable spring 522, opening the nozzle 514 to form an atomized spray.

[0064] After the user releases the press cap 411, the movable spring 522 resets and pushes the valve body column 521 upward to seal the nozzle 514. At the same time, the elastic element 413 in the piston assembly 41 resets, causing the first liquid storage tank 422 to generate negative pressure. New medicine is drawn from the bottle body 2 through the liquid suction channel 421 to replenish it. Meanwhile, the negative pressure inside the bottle draws in external air through the air intake assembly 3. The air flows through the three-stage air intake channel and the filter unit 32 to filter and trap bacteria. The clean air enters the bottle body 2 through the sealing column 3112 to balance the air pressure, ensuring that the medicine delivery and air pressure compensation are completed synchronously when the next press is made.

[0065] The above examples are merely illustrative of the technical content of this utility model to facilitate reader understanding, but do not imply that the implementation of this utility model is limited to these embodiments. Any technical extensions or re-creations made based on this utility model are protected by this utility model. The scope of protection of this utility model is defined by the claims.

Claims

1. A side-press nasal spray device, characterized in that, include: The device comprises an outer shell, a bottle body, an air inlet assembly, a liquid inlet assembly, and a liquid outlet assembly. The bottle body is used to store the medicine. The air inlet assembly, the liquid inlet assembly, and the liquid outlet assembly are all located within the outer shell body. The air inlet assembly is connected to the top of the bottle body, and the liquid outlet assembly, the liquid inlet assembly, and the air inlet assembly are connected sequentially from top to bottom. The air inlet assembly connects the bottle body and the liquid inlet assembly via a liquid guide tube. The liquid inlet assembly includes a piston assembly and a liquid inlet body. The piston assembly is slidably connected to the liquid inlet body and the side wall of the outer shell. The liquid inlet body is provided with a liquid suction channel, a first liquid storage tank and a liquid guiding channel connected in sequence. The liquid suction channel is connected to the air inlet assembly. The extension direction of the first liquid storage tank is perpendicular to the side wall of the outer shell. The liquid guiding channel is connected to the liquid outlet assembly.

2. The side-press nasal spray device according to claim 1, characterized in that, The piston assembly includes a pressing cover, a piston component, and an elastic component. The pressing cover is fixedly connected to the piston component. One end of the elastic component is connected to the piston component, and the other end is connected to the liquid inlet body. Pressing the pressing cover causes the piston component to slide along the first liquid storage tank. A second liquid storage tank is provided at one end of the piston component near the liquid inlet body. The liquid suction channel, the first liquid storage tank, the second liquid storage tank, and the liquid guiding channel are connected in sequence.

3. The side-press nasal spray device according to claim 2, characterized in that, The piston is embedded in the pressing cover, the pressing cover is provided with a hook part, the piston is provided with a locking part, and the hook part is locked into the locking part.

4. The side-press nasal spray device according to claim 1, characterized in that, The liquid dispensing assembly includes a nozzle and a liquid dispensing valve. The nozzle is connected to the top of the outer casing, and a liquid dispensing groove is provided inside the nozzle. The liquid dispensing valve is movably assembled inside the liquid storage groove.

5. The side-press nasal spray device according to claim 4, characterized in that, The liquid outlet valve includes a valve body column and a movable spring. One end of the movable spring is connected to the liquid inlet assembly, and the other end is connected to the inside of the valve body column, so as to drive the valve body column to move up and down inside the nozzle. The outer wall of the valve body column and the inner wall of the nozzle form a liquid outlet channel, and the liquid outlet channel is connected to the liquid inlet assembly.

6. The side-press nasal spray device according to claim 5, characterized in that, When there is no liquid pressure in the liquid outlet channel, the valve body column is in an upward position, and the upper end of the valve body column blocks the upper end of the liquid outlet channel and the nozzle of the nozzle. When there is liquid pressure in the outlet channel, the valve body column is in a downward state, and the upper end of the outlet channel is connected to the nozzle.

7. The side-press nasal spray device according to claim 6, characterized in that, The liquid inlet body extends upward and is provided with a first connecting wall, and the nozzle is provided with a first connecting groove, and the first connecting wall is engaged in the first connecting groove.

8. The side-press nasal spray device according to claim 1, characterized in that, The air intake assembly includes a snap-on cap and a filter unit. The snap-on cap is connected to the top of the bottle body, and the filter unit is disposed inside the snap-on cap. The snap-on cap includes a connecting part and a functional part. The connecting part extends outward and downward from the bottom of the functional part. The connecting part includes a second connecting wall and a sealing post extending downward from the top of the second connecting wall. The sealing post is disposed inside the second connecting wall. A first buckle is provided on the inner wall of the second connecting wall, and a second buckle is provided on the outer circumferential surface of the bottle body. The first buckle is engaged with the second buckle, and the outer wall of the sealing post abuts against the inner wall of the bottle body. The functional part includes a third connecting wall and a filter unit disposed within the third connecting wall. The filter unit communicates with the sealing post.

9. The side-press nasal spray device according to claim 8, characterized in that, A first air inlet is provided between the piston assembly and the outer shell, and a second air inlet is provided between the liquid inlet body and the third connecting wall; a second connecting groove is formed between the third connecting wall and the filter section, and a fourth connecting wall extends downward from the liquid inlet body, with a third air inlet provided between the fourth connecting wall and the second connecting groove; an air inlet hole is provided on the side wall of the filter section, and the filter unit is located inside the filter section; the first air inlet, the second air inlet, the third air inlet, the air inlet hole, the filter section, the sealing column, and the bottle body are sequentially connected.

10. The side-press nasal spray device according to claim 9, characterized in that, The top of the connecting part extends downward to provide a liquid inlet column, and the two ends of the liquid inlet column are respectively connected to the bottle body and the liquid inlet assembly. The liquid guide tube is embedded in the liquid inlet column so that the bottle body is connected to the liquid inlet assembly through the liquid guide tube.

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