Nasal aspirator

Abstract

The utility model relates to the technical field of cleaning and nursing devices, in particular to a nasal aspirator which comprises a shell, a suction nozzle arranged outside the front end of the shell and a negative pressure driving assembly arranged at the rear end of the shell, the shell is provided with an opening and closing assembly, the negative pressure driving assembly is provided with a one-way air valve, and a snot containing cavity is formed between the inner wall of the shell and the negative pressure driving assembly. The suction nozzle is communicated with the snot containing cavity through the opening and closing assembly, the opening and closing assembly is used for opening or closing communication between the suction nozzle and the snot containing cavity, the one-way air valve is used for communicating the snot containing cavity and the negative pressure driving assembly in a one-way mode, the air inlet end of the one-way air valve is communicated with an air pipe, and the air pipe extends into the snot containing cavity. According to the nasal discharge collecting device, the air pipe is arranged to stretch into the nasal discharge containing cavity, so that nasal discharge in the nasal discharge containing cavity cannot enter the one-way air valve, the situation that the nasal discharge leaks outwards or the one-way air valve is damaged is avoided, a containing part needed in the prior art for collecting the nasal discharge is omitted, the structure is simplified, assembly is convenient and fast, cost is reduced, and the nasal discharge collecting volume is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning and nursing devices, in particular to a nasal aspirator. Background Art

[0002] Children with a cold and nasal congestion are unable to suck out their own mucus, which can cause breathing difficulties, crying, and even disrupting their sleep. A nasal aspirator allows parents to help remove secretions from their children's nasal cavity, allowing them to breathe freely. To this end, the child's nose is usually moistened with physiological water (for example, 0.9% isotonic or hypertonic NaCl), and then a nasal aspirator is used to remove mucus, ensuring that the child can breathe normally, sleep peacefully, and most importantly, prevent inflammatory diseases.

[0003] The applicant applied for a Chinese patent document with application number 201920483766.8 on April 10, 2019, which discloses a nasal aspirator, including a shell and a suction nozzle arranged at the front end of the shell, a negative pressure chamber provided in the shell, the suction nozzle is connected to the negative pressure chamber, a container for accommodating nasal mucus is provided in the negative pressure chamber, the shell is movably provided with an isolation component for isolating the suction nozzle from the negative pressure chamber, the rear end of the shell is provided with a negative pressure component for generating a vacuum negative pressure in the negative pressure chamber, and a one-way air valve for connecting the negative pressure chamber to the negative pressure component is provided between the negative pressure component and the negative pressure chamber. Although this patent document can achieve the adsorption of nasal mucus and is convenient to use, it requires a container to be provided in the negative pressure chamber to collect the nasal mucus, which makes the volume of the collected nasal mucus small. Once the nasal mucus in the container leaks into the negative pressure chamber, the nasal mucus can easily enter the one-way air valve, and the cost of the nasal aspirator is high.

[0004] Therefore, the defects are very obvious and a solution is urgently needed. Utility Model Content

[0005] In order to solve the above technical problems, the purpose of the present invention is to provide a nasal aspirator.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A nasal aspirator comprises a shell, a suction nozzle arranged outside the front end of the shell and a negative pressure drive component arranged at the rear end of the shell, the shell is provided with an opening and closing component, the negative pressure drive component is provided with a one-way air valve, a snot receiving chamber is formed between the inner wall of the shell and the negative pressure drive component, the suction nozzle is connected to the snot receiving chamber via the opening and closing component, the opening and closing component is used to open or close the connection between the suction nozzle and the snot receiving chamber, the one-way air valve is used to one-way connect the snot receiving chamber and the negative pressure drive component, the air inlet end of the one-way air valve is connected to the trachea, the trachea extends into the snot receiving chamber, and the negative pressure drive component generates vacuum negative pressure to the snot receiving chamber via the one-way air valve and the trachea in turn.

[0008] Furthermore, a lower guide tube is provided in the front end of the shell, and the lower guide tube extends into the nasal mucus receiving cavity.

[0009] Furthermore, an upper guide tube is provided outside the front end of the shell, the suction nozzle is sleeved outside the upper guide tube, the opening and closing component is provided between the upper guide tube and the lower guide tube, and the opening and closing component is used to block or connect the upper guide tube and the lower guide tube.

[0010] Furthermore, an inner ring is provided in the front end of the shell, the lower guide pipe is located in the inner ring, and the top end of the air pipe extends into the inner ring and is located on one side of the lower guide pipe.

[0011] Furthermore, a convex rib is provided inside the front end of the shell, the convex rib is located between the lower guide pipe and the inner ring, and the convex rib is provided corresponding to the top end of the air pipe.

[0012] Furthermore, the top cover of the shell is provided with a cover body, and the suction nozzle is located in the cover body.

[0013] Furthermore, the housing and the negative pressure drive assembly are detachably sealed and connected via a sealing ring.

[0014] The beneficial effects of the present invention are as follows: in actual application, under normal conditions, the opening and closing assembly closes the connection between the suction nozzle and the snot receiving chamber; when it is necessary to suck snot, the negative pressure driving assembly works to extract the gas in the snot receiving chamber under the cooperation of the one-way air valve, so that a vacuum negative pressure is generated in the snot receiving chamber, and then the suction nozzle is inserted into the nostril. The user drives the opening and closing assembly to open the connection between the suction nozzle and the snot receiving chamber. Under the action of the negative pressure in the snot receiving chamber, the suction nozzle sucks the snot in the nostril from the suction nozzle into the snot receiving chamber to collect the snot. The present invention can absorb snot, and by setting an air tube extending into the snot receiving chamber, the snot in the snot receiving chamber will not enter the one-way air valve, thereby preventing the snot from leaking out or causing damage to the one-way air valve, and saves the required container for collecting snot in the prior art, simplifies the structure, is convenient to assemble, reduces the cost, and increases the volume of collected snot. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a cross-sectional view of the present invention.

[0016] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model after the cover is hidden.

[0017] Description of reference numerals:

[0018] 1. Outer shell; 2. Suction nozzle; 3. Negative pressure drive assembly; 4. Opening and closing assembly; 5. One-way air valve; 6. Mucus collection chamber; 7. Trachea; 8. Lower guide tube; 9. Upper guide tube; 10. Inner ring; 11. Rib; 12. Cover; 13. Sealing ring. DETAILED DESCRIPTION

[0019] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to embodiments and drawings. The contents mentioned in the embodiments are not intended to limit the present invention.

[0020] like Figure 1 and 2 As shown, the utility model provides a nasal aspirator, which includes a housing 1, a suction nozzle 2 arranged outside the front end of the housing 1, and a negative pressure drive assembly 3 arranged at the rear end of the housing 1. The housing 1 is provided with an opening and closing assembly 4, and the negative pressure drive assembly 3 is provided with a one-way air valve 5. A sealed snot receiving chamber 6 is formed between the inner wall of the housing 1 and the negative pressure drive assembly 3. The air inlet end of the one-way air valve 5 is located in the snot receiving chamber 6. The suction nozzle 2 is connected to the snot receiving chamber 6 via the opening and closing assembly 4. The opening and closing assembly 4 is used to open or close the connection between the suction nozzle 2 and the snot receiving chamber 6. The one-way air valve 5 is used to connect the snot receiving chamber 6 and the negative pressure drive assembly 3 in one direction. The air inlet end of the one-way air valve 5 is connected to an trachea 7, which extends into the snot receiving chamber 6. The negative pressure drive assembly 3 generates a vacuum negative pressure in the snot receiving chamber 6 via the one-way air valve 5 and the trachea 7 in turn. Specifically, the top end of the trachea 7 extends to the top of the snot receiving chamber 6.

[0021] In actual application, under normal circumstances, the opening and closing component 4 closes the connection between the suction nozzle 2 and the snot receiving chamber 6; when it is necessary to suck snot, the negative pressure driving component 3 works to extract the gas in the snot receiving chamber 6 with the cooperation of the one-way air valve 5, so that a vacuum negative pressure is generated in the snot receiving chamber 6, and then the suction nozzle 2 is inserted into the nostril. The user drives the opening and closing component 4 to open the connection between the suction nozzle 2 and the snot receiving chamber 6. Under the action of the negative pressure of the snot receiving chamber 6, the suction nozzle 2 sucks the snot in the nostril from the suction nozzle 2 into the snot receiving chamber 6 to collect the snot. The present application can absorb nasal mucus. By setting an air tube 7 to extend into the nasal mucus receiving chamber 6, the snot in the nasal mucus receiving chamber 6 will not enter the one-way air valve 5, thereby avoiding leakage of nasal mucus or damage to the one-way air valve 5. It also saves the storage parts required in the prior art to collect nasal mucus, simplifies the structure, facilitates assembly, reduces costs, and increases the volume of collected nasal mucus.

[0022] In this embodiment, a lower guide tube 8 is provided in the front end of the housing 1, and the lower guide tube 8 extends into the nasal mucus receiving chamber 6. The nasal mucus falls into the nasal mucus receiving chamber 6 along the lower guide tube 8, which improves the stability of the nasal mucus entering the nasal mucus receiving chamber 6 and prevents the nasal mucus from entering the trachea 7.

[0023] In this embodiment, an upper flow guide tube 9 is provided outside the front end of the housing 1, and the suction nozzle 2 is sleeved outside the upper flow guide tube 9. The opening and closing assembly 4 is provided between the upper flow guide tube 9 and the lower flow guide tube 8. The opening and closing assembly 4 is used to block or connect the upper flow guide tube 9 and the lower flow guide tube 8. This structural design facilitates the disassembly and cleaning of the suction nozzle 2.

[0024] In this embodiment, an inner ring 10 is provided within the front end of the housing 1. The lower flow guide tube 8 is located within the inner ring 10. The top end of the trachea 7 extends into the inner ring 10 and is located on one side of the lower flow guide tube 8. This structural design positions the trachea 7 between the lower flow guide tube 8 and the inner ring 10, which limits the position of the trachea 7 to a certain extent, ensuring that the top end of the trachea 7 is always located at the top of the nasal mucus collection cavity 6, making it more difficult for mucus to enter the trachea 7.

[0025] In this embodiment, a rib 11 is provided within the front end of the housing 1. The rib 11 is located between the lower air guide tube 8 and the inner ring 10, and corresponds to the top end of the trachea 7. The rib 11 is provided so that when the trachea 7 is too long, the top end of the trachea 7 contacts the rib 11. The rib 11 does not block the top end of the trachea 7, and a gap is always maintained between the top end of the trachea 7 and the inner wall of the housing 1, preventing the top end of the trachea 7 from contacting the inner wall of the housing 1 and thereby blocking the top end of the trachea 7.

[0026] In this embodiment, the top cover of the housing 1 is provided with a cover body 12, and the suction nozzle 2 is located in the cover body 12. When not in use, the cover body 12 is covered on the housing 1 to enclose the suction nozzle 2 for storage.

[0027] In this embodiment, the housing 1 and the negative pressure drive assembly 3 are detachably sealed and connected via a sealing ring 13 .

[0028] Specifically, the opening and closing component 4 of the present application can adopt the structure of the isolation component in the Chinese patent document with application number 201920483766.8, and the negative pressure drive component 3 can adopt the structure of the negative pressure component in the Chinese patent document with application number 201920483766.8, which will not be repeated here.

[0029] All technical features in this embodiment can be freely combined according to actual needs.

[0030] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the scope of protection of the present invention.

Claims

1. A nasal aspirator comprising a housing (1), a nozzle (2) disposed outside the front end of the housing (1), and a negative pressure drive assembly (3) disposed at the rear end of the housing (1), the housing (1) being provided with an opening and closing assembly (4), and the negative pressure drive assembly (3) being provided with a one-way air valve (5), characterized in that: A snot receiving chamber (6) is formed between the inner wall of the housing (1) and the negative pressure driving assembly (3); the suction nozzle (2) is connected to the snot receiving chamber (6) via the opening and closing assembly (4); the opening and closing assembly (4) is used to open or close the connection between the suction nozzle (2) and the snot receiving chamber (6); the one-way air valve (5) is used to connect the snot receiving chamber (6) and the negative pressure driving assembly (3) in one direction; the air inlet end of the one-way air valve (5) is connected to an air pipe (7); the air pipe (7) extends into the snot receiving chamber (6); and the negative pressure driving assembly (3) generates a vacuum negative pressure in the snot receiving chamber (6) via the one-way air valve (5) and the air pipe (7) in turn.

2. A nasal aspirator according to claim 1, characterized in that: A lower flow guide tube (8) is provided in the front end of the housing (1), and the lower flow guide tube (8) extends into the nasal mucus receiving cavity (6).

3. A nasal aspirator according to claim 2, characterized in that: An upper flow guide tube (9) is provided outside the front end of the housing (1); the suction nozzle (2) is sleeved outside the upper flow guide tube (9); an opening and closing assembly (4) is provided between the upper flow guide tube (9) and the lower flow guide tube (8); and the opening and closing assembly (4) is used to block or connect the upper flow guide tube (9) and the lower flow guide tube (8).

4. The nasal aspirator according to claim 2, characterized in that: An inner ring (10) is provided in the front end of the outer shell (1), the lower guide tube (8) is located in the inner ring (10), and the top end of the air pipe (7) extends into the inner ring (10) and is located on one side of the lower guide tube (8).

5. The nasal aspirator according to claim 4, characterized in that: A convex rib (11) is provided in the front end of the outer shell (1), the convex rib (11) is located between the lower flow guide tube (8) and the inner ring (10), and the convex rib (11) is provided corresponding to the top end of the air pipe (7).

6. The nasal aspirator according to claim 1, characterized in that: The top cover of the shell (1) is provided with a cover body (12), and the suction nozzle (2) is located in the cover body (12).

7. The nasal aspirator according to claim 1, characterized in that: The housing (1) and the negative pressure drive assembly (3) are detachably sealed and connected via a sealing ring (13).

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