Suction nozzle assembly and nasal aspirator

Abstract

The utility model provides a suction nozzle assembly and a nasal aspirator. The suction nozzle assembly comprises a liquid storage bin with a liquid storage cavity, an outer cover arranged on the outer side of the liquid storage bin in a sleeving mode and a suction head installed on the outer cover, wherein one end of the suction head stretches into the liquid storage bin. The liquid storage bin is provided with a first air flow channel and a second air flow channel, a middle air flow channel is formed between the liquid storage bin and the outer cover, and the first air flow channel, the middle air flow channel and the second air flow channel are sequentially communicated. The suction head is provided with an air inlet channel communicated with the liquid storage cavity, and the axis of the air inlet channel and the axis of the liquid storage bin are obliquely arranged at a preset angle. According to the nozzle assembly, due to the fact that the axis of the air inlet channel of the suction head and the axis of the liquid storage bin are obliquely arranged at the preset angle, under the condition that the suction head and the liquid storage bin are the same in size, the vertical distance from the bottom of the liquid storage bin to the bottom end of the suction head is increased, then the liquid storage space is increased, and snot in the liquid storage bin is not prone to overflowing through the bottom end of the suction head; and the phenomenon of snot backflow is not easy to occur.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a suction nozzle assembly and a nasal aspirator. Background Technology

[0002] A nasal aspirator is a manual tool used to help infants and young children clear nasal secretions such as mucus from their nasal cavity, thereby clearing the airway. It can effectively reduce breathing difficulties and postnasal drip caused by nasal congestion in infants and young children. A nasal aspirator generally consists of a suction head, a reservoir, a body, and an air pump. For example, patent application number 202122870076.8 discloses a suction nozzle assembly and a nasal aspirator. However, both the suction head and the reservoir are tilted at a preset angle relative to the body, and the central axis of the suction head is the same as the central axis of the reservoir. This structural arrangement results in too small a reservoir space, which easily leads to postnasal drip and causes many inconveniences for users. Utility Model Content

[0003] Therefore, it is necessary to provide a suction nozzle assembly and nasal aspirator with a large liquid storage space and less nasal mucus backflow to address the problems existing in the current nasal aspirator.

[0004] A suction nozzle assembly includes: a liquid storage chamber with a liquid reservoir, an outer cover fitted around the outside of the liquid storage chamber, and a suction head mounted on the outer cover with one end extending into the liquid storage chamber; the liquid storage chamber is provided with a first airflow channel and a second airflow channel, and an intermediate airflow channel is formed between the liquid storage chamber and the outer cover, wherein the first airflow channel, the intermediate airflow channel, and the second airflow channel are sequentially connected; the suction head is provided with an air inlet channel communicating with the liquid storage chamber, and the axis of the air inlet channel is inclined at a preset angle to the axis of the liquid storage chamber.

[0005] The above-mentioned nozzle assembly has its air inlet channel axis tilted at a preset angle to the liquid storage tank axis. This increases the vertical distance from the bottom of the liquid storage tank to the bottom of the suction head for the same size suction head and liquid storage tank, thereby increasing the liquid storage space. This makes it less likely for mucus in the liquid storage tank to overflow through the bottom of the suction head, thus reducing the likelihood of mucus backflow.

[0006] In one embodiment, the liquid storage tank is provided with a raised portion located on the side of the air inlet channel away from the bottom of the liquid storage tank.

[0007] In one embodiment, the outer cover is provided with a mounting base, the suction head is fitted onto the mounting base, and the inner wall of the suction head abuts against the outer wall of the mounting base.

[0008] In one embodiment, the outer wall of the mounting base is provided with a first protrusion, and the inner wall of the suction head is provided with a first groove, the first protrusion abutting against the first groove.

[0009] In one embodiment, the preset angle is between 0° and 90°.

[0010] In one embodiment, a sealing ring is also included, which abuts against the outer wall of the liquid storage tank and the inner wall of the outer cover, respectively.

[0011] This utility model also provides a nasal aspirator, including the above-described suction nozzle assembly, a body connected at one end to the suction nozzle assembly, a pump installed in the body, and a first sealing ring installed on the body and located below the liquid storage tank; the pump is connected to the second airflow channel.

[0012] In one embodiment, the inner wall of the first sealing ring abuts against the outer wall of the liquid storage tank, and the outer wall of the first sealing ring abuts against the inner wall of the machine body.

[0013] In one embodiment, a battery installed inside the housing is also included, the battery being connected to the pump.

[0014] In one embodiment, the device further includes a charging port installed at the bottom of the device body and a second sealing ring disposed around the charging port, the second sealing ring abutting against the inner wall of the bottom of the device body.

[0015] In one embodiment, the device further includes a circuit board, a display screen, and buttons mounted on the device body, wherein the display screen and buttons are connected to the circuit board.

[0016] In one embodiment, a sealing gasket is also included, fitted over the outside of the button.

[0017] In one embodiment, the device body is provided with an audio hole, and a speaker diaphragm is installed on the inner wall of the device body, with the speaker diaphragm being disposed opposite to the audio hole.

[0018] In one embodiment, a charging dock adapted to the device body is also included. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. Wherein:

[0020] Figure 1 This is a schematic diagram of the suction nozzle assembly of this utility model;

[0021] Figure 2 for Figure 1 A cross-sectional view of the nozzle assembly shown from one perspective;

[0022] Figure 3 for Figure 1 A cross-sectional view of the nozzle assembly shown from another perspective;

[0023] Figure 4 for Figure 1 A schematic diagram of one type of suction head in the suction nozzle assembly shown;

[0024] Figure 5 for Figure 1 An exploded view of the nozzle assembly shown;

[0025] Figure 6 This is a schematic diagram of the nasal aspirator of this utility model;

[0026] Figure 7 for Figure 6 A cross-sectional view of the nasal aspirator shown.

[0027] Figure 8 for Figure 7 An enlarged view of circle A in the nasal aspirator shown;

[0028] Figure 9 for Figure 7 An enlarged schematic diagram of circle B in the nasal aspirator shown;

[0029] Figure 10 This is a schematic diagram of another embodiment of the nasal aspirator of this utility model;

[0030] Figure 11 for Figure 6 The diagram shows the state of the mouthpiece assembly in one usage scenario of the nasal aspirator. Detailed Implementation

[0031] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0032] It should be noted that when an element is said to be "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is said to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. Furthermore, the term "and / or" in this document is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of this invention is for the purpose of describing particular embodiments only; for example, “inner,” “outer,” “left,” “right,” and similar expressions are for illustrative purposes only and are not intended to limit the scope of the invention.

[0034] Please refer to Figures 1 to 5 This is a schematic diagram of the suction nozzle assembly 100 of this utility model, which is used in a nasal aspirator. The suction nozzle assembly 100 includes a liquid storage chamber 20 with a liquid storage cavity 21, an outer cover 30 fitted outside the liquid storage chamber 20, and a suction head 40 mounted on the outer cover 30 with one end extending into the liquid storage chamber 20. The liquid storage chamber 20 is provided with a first airflow channel 22 and a second airflow channel 23, and an intermediate airflow channel 24 is formed between the liquid storage chamber 20 and the outer cover 30. The first airflow channel 22, the intermediate airflow channel 24, and the second airflow channel 23 are connected in sequence. The suction head 40 is provided with an air inlet channel 41 communicating with the liquid storage chamber 21. The axis of the air inlet channel 41 is inclined at a preset angle to the axis of the liquid storage chamber 20. The preset angle is 10°-60°, and can be set according to actual needs. In this embodiment, 15° is preferred. The suction head 40 can be replaced with different models as needed. Figure 4 The image shown is of another type of suction head, model 40.

[0035] Furthermore, in one embodiment, the liquid storage tank 20 is provided with a raised portion 60, located on the side of the air inlet channel 41 away from the bottom of the liquid storage tank 20. This creates a recessed space in the liquid storage cavity 21 of the liquid storage tank 20 corresponding to the raised portion 60, further increasing the liquid storage space of the liquid storage tank 20. Moreover, because the liquid storage tank 20 has this raised portion 60, a structure resembling a bird's head or beak is formed between the liquid storage tank 20, the outer cover 30, and the suction head 40. This structure is beneficial for cleaning the nasal mucus of an infant in a reclining position. Please refer to... Figure 11When using the device, with the baby lying at an angle, hold the nasal aspirator upside down so that the nozzle assembly 100 is in an inverted position, with the raised part 60 facing downwards. Insert the suction head 40 into the baby's nostril to suction nasal mucus. The mucus 400 sucked from the baby's nose into the reservoir 20 will fall into the recessed space under its own weight and be stored there. Furthermore, the mucus 400 is located below the outlet end of the air inlet channel 41 and at a certain vertical distance from the outlet end, making it less likely for the mucus 400 to overflow or flow back. When the entire nasal aspirator is used in an upright position, the mucus 400 sucked from the baby's nose into the reservoir 20 will fall into the bottom of the reservoir 20 under its own weight. Because the reservoir 20 itself has sufficient space, and the axis of the air inlet channel 41 is tilted at a preset angle to the axis of the reservoir 20, the storage space is further increased, making backflow even less likely.

[0036] Furthermore, an mounting sleeve 25 is installed on the liquid storage tank 20. The mounting sleeve 25 is installed on the top of the liquid storage tank 20 for the suction head 40 to pass through and extend out. The outer wall of the suction head 40 and the inner wall of the mounting sleeve 25 form the aforementioned first airflow channel 22. In this embodiment, the liquid storage tank 20 includes a bottom shell 26 and a top cover 27 connected to the bottom shell 26. This makes the entire liquid storage tank 20 easy to disassemble. When a large amount of nasal secretions such as mucus is collected in the liquid storage tank 20, the top cover 27 can be opened to pour out and clean it up, which is very convenient and quick. In this embodiment, the bottom shell 26 and the top cover 27 are assembled by a snap-fit ​​method. In other embodiments, other methods may be used, such as threaded connection. This is not limited to any particular method.

[0037] Furthermore, the outer cover 30 is provided with a mounting base 31, and the suction head 40 is fitted onto the mounting base 31. The inner wall of the suction head 40 abuts against the outer wall of the mounting base 31, thus forming a sealed isolation wall. The outer wall of the mounting base 31 is provided with a first protrusion 32, and the inner wall of the suction head 40 is provided with a first groove 42. The first protrusion 32 abuts against the first groove 42, thus improving the sealing effect. In this embodiment, the first protrusion 32 and the first groove 42 are interference-fitted and further ultrasonically welded, resulting in an excellent sealing effect.

[0038] Furthermore, the nozzle assembly 100 also includes a sealing ring 50, which abuts against the outer wall of the liquid storage tank 20 and the inner wall of the outer cover 30, thereby sealing the space between the outer cover 30 and the liquid storage tank 20 and preventing a small amount of secretions that may have entered the intermediate airflow channel 24 from leaking into the machine body or outside. To ensure the installation stability of the sealing ring 50, a limiting protrusion 28 is provided on the outer wall of the liquid storage tank 20, and the limiting protrusion 28 is located above the sealing ring 50.

[0039] The aforementioned suction nozzle assembly 100, because the axis of the air inlet channel 41 of the suction head 40 is inclined at a preset angle to the axis of the liquid storage tank 20, in the case of suction heads 40 and liquid storage tank 20 of the same size, the vertical distance from the bottom of the liquid storage tank 20 to the bottom of the suction head 40 is increased, thereby increasing the liquid storage space. The mucus in the liquid storage tank 20 is less likely to overflow through the bottom of the suction head 40, and the phenomenon of mucus backflow is less likely to occur.

[0040] Please refer to again Figures 6 to 9 This utility model also provides a nasal aspirator 200, including the aforementioned suction nozzle assembly 100, a body 210 connected at one end to the suction nozzle assembly 100, a pump 220 installed inside the body 210, and a first sealing ring 230 installed on the body 210 and located below the liquid storage chamber 20. The pump 220 is connected to the second airflow channel 23. The body 210 and the liquid storage chamber 20 are arranged in a straight line, that is, the axis of the body 210 coincides with the axis of the liquid storage chamber 20. In use, when the pump 220 is started, the suction port of the pump 220 generates negative pressure, which in turn generates negative pressure airflow at the air inlet of the suction head 40. The resulting suction force draws secretions such as mucus from the nostrils into the air intake channel 41, and the secretions then enter the liquid storage chamber 21 of the liquid storage chamber 20 and accumulate in the bottom area of ​​the liquid storage chamber 21. Furthermore, the generated negative pressure airflow sequentially passes through the air intake channel 41, the liquid storage chamber 21, the first airflow channel 22, the intermediate airflow channel 24, and the second airflow channel 23 before reaching the pump 220 (the arrow direction indicates the flow direction of the negative pressure airflow), maintaining the continuity of the suction channel and thus ensuring the continuous operation of the nasal aspirator 200. The first sealing ring 230 seals the body 210, preventing secretions from the liquid storage chamber 20 and external liquids from flowing into the body, thus providing waterproofing and facilitating cleaning and maintenance.

[0041] Furthermore, the inner wall of the first sealing ring 230 abuts against the outer wall of the liquid storage tank 20, and the outer wall of the first sealing ring 230 abuts against the inner wall of the body 210, thus forming a sealing barrier between the liquid storage tank 20 and the body 210. The inner wall of the body 210 has at least one second protrusion 211, and the outer wall of the first sealing ring 230 has at least one second groove 231. The second protrusion 211 abuts against the second groove 231, thus improving the sealing effect between the body 210 and the first sealing ring 230. Even further, the outer wall of the liquid storage tank 20 has a third groove 29, and the inner wall of the first sealing ring 230 has a third protrusion 232, further improving the sealing effect between the first sealing ring 230 and the liquid storage tank 20. In this embodiment, the second protrusion 221 and the second groove 231, and the third protrusion 232 and the third groove 29, are both interference fits and ultrasonically welded, resulting in excellent sealing performance. In this embodiment, there are two second protrusions 211 and two second grooves 231, thus forming two sealing barriers simultaneously, providing double sealing protection. Furthermore, the first sealing ring 230 is provided with a platform ring 233, into which the second airflow channel 23 of the liquid storage chamber 20 extends. The platform ring 233 acts as a dam, preventing liquid from flowing into the pump 220 when there is a small amount of liquid in the first sealing ring 230.

[0042] Furthermore, the nasal aspirator 200 also includes a battery 240 installed inside the body 210. The battery 240 is connected to the pump 220 and provides it with power. Even further, the nasal aspirator 200 includes a charging port 250 installed at the bottom of the body 210 and a second sealing ring 260 surrounding the charging port 250. The second sealing ring 260 abuts against the inner wall of the body 210 to provide a seal. The charging port 250 is connected to the battery 240, facilitating charging of the battery 240 and thus improving the battery life of the nasal aspirator 200. Furthermore, the body 210 has a fourth recessed portion 212, and the second sealing ring 260 has a fourth protrusion 261. The fourth protrusion 261 abuts against the fourth recessed portion 212, and the fourth protrusion 261 and the fourth recessed portion 212 are interference-fitted and ultrasonically welded, resulting in excellent sealing performance.

[0043] In another embodiment, the nasal aspirator 200 further includes an ambient light 270 installed inside the body 210. The ambient light 270 is arranged around the second sealing ring 260, and when in use, the ambient light 270 is lit up to provide a special lighting atmosphere.

[0044] Furthermore, the nasal aspirator 200 also includes a circuit board 310, a display screen 320, and buttons 330 mounted on the body 210. The display screen 320 and buttons 330 are connected to the circuit board 310, and the circuit board 310 and display screen 320 are also connected to the battery 240. The display screen 320 can display various operating conditions, and the pump 220 can be started and its speed adjusted by operating the buttons 330. To ensure the sealing and waterproof effect of each button 330, the nasal aspirator 200 also includes a sealing gasket 340 fitted over the outside of the button 330.

[0045] Furthermore, the housing 210 is provided with an audio hole 350, which facilitates the transmission of audio information generated by the audio generator (not shown) inside the housing 210. To ensure the sealing and waterproof effect of the audio hole 350, a speaker diaphragm 360 is installed on the inner wall of the housing 210, and the speaker diaphragm 360 is positioned opposite to the audio hole 350.

[0046] Please refer to again Figure 10 In one embodiment, the nasal aspirator 200 further includes a charging base 370 adapted to the body 210, through which the nasal aspirator 200 can be conveniently charged.

[0047] Because the air inlet channel axis of the suction head of the aforementioned nasal aspirator 200 is inclined at a preset angle to the axis of the liquid reservoir, the vertical distance from the bottom of the liquid reservoir to the bottom of the suction head is increased for the same size suction head and liquid reservoir. This increases the liquid storage space, making it less likely for mucus in the liquid reservoir to overflow through the bottom of the suction head, thus reducing the likelihood of mucus backflow. Furthermore, the inclusion of sealing components such as a sealing ring 50, a first sealing ring 230, a second sealing ring 260, a sealing gasket 340, and a diaphragm 360 provides complete waterproofing for the entire nasal aspirator 200, improving its overall lifespan and safety.

[0048] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0049] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A suction nozzle assembly, characterized in that, include: The device includes a liquid storage chamber, an outer cover fitted around the outside of the liquid storage chamber, and a suction head mounted on the outer cover with one end extending into the liquid storage chamber. The liquid storage chamber is provided with a first airflow channel and a second airflow channel, and an intermediate airflow channel is formed between the liquid storage chamber and the outer cover. The first airflow channel, the intermediate airflow channel, and the second airflow channel are connected in sequence. The suction head is provided with an air inlet channel that communicates with the liquid storage chamber, and the axis of the air inlet channel is inclined at a preset angle to the axis of the liquid storage chamber.

2. The suction nozzle assembly according to claim 1, characterized in that, The liquid storage tank is provided with a raised portion, which is located on the side of the air inlet channel away from the bottom of the liquid storage tank.

3. The suction nozzle assembly according to claim 1, characterized in that, The outer cover is provided with a mounting base, and the suction head is fitted onto the mounting base, with the inner wall of the suction head abutting against the outer wall of the mounting base.

4. The suction nozzle assembly according to claim 3, characterized in that, The outer wall of the mounting base is provided with a first protrusion, and the inner wall of the suction head is provided with a first groove, the first protrusion abutting against the first groove.

5. The suction nozzle assembly according to claim 1, characterized in that, The preset angle is between 0° and 90°.

6. The suction nozzle assembly according to claim 1, characterized in that, It also includes sealing rings, which abut against the outer wall of the liquid storage tank and the inner wall of the outer cover, respectively.

7. A nasal aspirator, characterized in that, The device includes a suction nozzle assembly as described in any one of claims 1-6, a body connected at one end to the suction nozzle assembly, a pump installed in the body, and a first sealing ring installed on the body and located below the liquid storage tank; the pump is connected to the second airflow channel.

8. The nasal aspirator according to claim 7, characterized in that, The inner wall of the first sealing ring abuts against the outer wall of the liquid storage tank, and the outer wall of the first sealing ring abuts against the inner wall of the machine body.

9. The nasal aspirator according to claim 7, characterized in that, It also includes a battery installed inside the housing, which is connected to the pump.

10. The nasal aspirator according to claim 9, characterized in that, It also includes a charging port installed at the bottom of the body and a second sealing ring arranged around the charging port, the second sealing ring abutting against the inner wall of the bottom of the body.

11. The nasal aspirator according to claim 7, characterized in that, It also includes a circuit board, a display screen, and buttons mounted on the device body, wherein the display screen and buttons are connected to the circuit board.

12. The nasal aspirator according to claim 11, characterized in that, It also includes a sealing gasket fitted onto the outside of the button.

13. The nasal aspirator according to claim 7, characterized in that, The device body is provided with an audio hole, and a speaker diaphragm is installed on the inner wall of the device body, with the speaker diaphragm being arranged opposite to the audio hole.

14. The nasal aspirator according to claim 7, characterized in that, It also includes a charging dock that is compatible with the device body.

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