Positive and negative pressure electric nasal cavity cleaner
By designing a positive and negative pressure electric nasal irrigator, a vacuum pump is used to achieve gas-liquid separation, which solves the problem of bacterial growth caused by residual cleaning fluid and improves cleaning efficiency and cleanliness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-14
- Publication Date
- 2026-03-24
AI Technical Summary
In existing nasal irrigators, cleaning solution can easily remain inside the pump, leading to bacterial growth and contamination.
The positive and negative pressure electric nasal irrigator completely separates the gas and liquid pathways. It uses a vacuum pump to separate the cleaning fluid and waste fluid, and cleans by positive pressure pumping and negative pressure suction, avoiding the cleaning fluid and waste fluid from passing through the motor or concealed pipelines.
It achieves complete separation of cleaning fluid and waste liquid, avoids bacterial growth, improves cleaning efficiency, and ensures thorough cleaning of both cleaning fluid and waste liquid.
Smart Images

Figure CN224023905U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of nasal washers, in particular to positive and negative pressure electric nasal cavity cleaning device. BACKGROUND
[0002] Nasal washers are tools for washing nasal cavities. They usually use certain pressure (or suction, or gravity, or mechanical pressure) to send physiological saline into nostrils, flow through the nasal vestibule (the part exposed outside the head), sinuses, nasal passages, and around the nasopharynx, or discharge from one side of the nostril, or from the mouth. The structure of the nasal washer is disclosed in the patent document with the publication number CN106265042B. The cleaning liquid is sent into the nasal cavity through the water pump. In this scheme, the cleaning liquid will pass through the water pump and then be sent into the nasal cavity. After long-term use, the cleaning liquid is easy to remain in the water pump, and the water pump breeds bacteria, which causes pollution when the cleaning liquid enters the nasal cavity. SUMMARY
[0003] To solve the above technical problems, the utility model provides positive and negative pressure electric nasal cavity cleaning device, gas liquid passage is completely separated, so that the cleaning liquid and waste liquid do not pass through any motor or hidden pipeline, liquid warehouse and liquid pipeline can be completely disassembled and cleaned and will not produce the breeding of bacteria.
[0004] The utility model adopts the technical scheme in the technical problem is solved: positive and negative pressure electric nasal cavity cleaning device, including the washing cover, vacuum pump, clear liquid warehouse and waste liquid warehouse,
[0005] The washing cover is provided with liquid outlet and liquid return port corresponding to two nostrils,
[0006] The gas output port of the vacuum pump is communicated with the clear liquid warehouse,
[0007] The inner end of the liquid outlet is communicated to the clear liquid warehouse in the liquid outlet pipe,
[0008] The inner end of the liquid return port is communicated with the waste liquid warehouse,
[0009] The top of the waste liquid warehouse is communicated to the gas input port of the vacuum pump through the gas return pipe.
[0010] In use, the liquid outlet and the liquid return port are aligned with the two nostrils, the gas outlet of the vacuum pump is communicated with the clean liquid tank, and is used for compressing gas into the clean liquid tank, at this time, the pressure in the clean liquid tank is greater than the ambient pressure, so as to drive the cleaning liquid to flow outward along the liquid outlet pipe, so that the cleaning liquid reaches the liquid outlet, and then flows into the two nasal cavities through one nostril, and then flows into the waste liquid tank through the other nostril along the liquid return port. The gas inlet of the vacuum pump is communicated with the waste liquid tank, and is used for discharging the gas in the waste liquid tank by suction, as the gas in the tank body is discharged, the air pressure in the tank body is gradually less than the external atmospheric pressure, a negative pressure state is formed, which helps the cleaning liquid in the nasal cavity to be cleaned and discharged into the waste liquid tank, so that the nasal cavity reaches a pressure balance state, so that the flow rate of the cleaning liquid is accelerated, and the technical principle of combination of flushing and suction makes the cleaning efficiency higher.
[0011] The technical principle is positive pressure pumping and negative pressure suction, the gas-liquid passage is completely separated, so that the cleaning liquid and the waste liquid do not pass through any motor or hidden pipeline, and the liquid tank and the liquid pipeline can be completely cleaned and bacteria breeding is not caused.
[0012] Preferably, the flushing cover is provided with a dustproof cover, which improves the cleanliness of the flushing cover.
[0013] Preferably, the vacuum pump is located in the main machine section, the waste liquid tank is arranged above the main machine section, the flushing cover is detachably connected to the upper end of the waste liquid tank, and the clean liquid tank is arranged below the main machine section. The layout is more reasonable, and the clean liquid can be more conveniently pumped and recovered.
[0014] Preferably, the two ends of the liquid outlet pipe are detachably connected to the liquid outlet and the clean liquid tank. This facilitates disassembly and cleaning.
[0015] Preferably, the inner wall of the flushing cover is provided with a top cavity, the upper end of the gas return pipe extends into the top cavity, and a gap is formed between the gas return pipe and the top cavity. The interference fit can prevent water from passing through the high-elasticity separation layer under normal pressure, and the high-elasticity separation layer can allow gas to pass normally when the pressure difference between the two sides is large, that is, the negative pressure of the vacuum pump can break through the gap between the high-elasticity separation layer and the gas return pipe, so that the waste liquid tank forms a negative pressure state.
[0016] Preferably, the gas outlet is provided with a positive pressure relief branch pipe communicated with the atmosphere, and the positive pressure relief branch pipe is provided with a positive pressure pressure regulating valve. In the case that the pipeline flow is not smooth, the positive pressure pressure regulating valve can be opened or increased to relieve the pressure to a certain extent.
[0017] Preferably, the gas input port is provided with a negative pressure relief branch communicating with the atmosphere, and the negative pressure relief branch is provided with a negative pressure regulating valve.
[0018] Preferably, a main machine section is provided with a battery, a circuit board and the vacuum pump which are electrically connected with each other, and the circuit board is provided with a control button; and a silica gel key cover is arranged outside the control button.
[0019] Preferably, the clear liquid tank is arranged at the bottom of the main machine section, and the waste liquid tank is arranged above the main machine section.
[0020] Preferably, a sealing ring is arranged between the clear liquid tank and the main machine section, and the outer surface of the clear liquid tank is provided with a capacity scale.
[0021] The utility model discloses the beneficial effects of:
[0022] The scheme utilizes the principle that the vacuum pump draws gas from one side to the other side, and only needs to set up a gas pump to realize the effect of simultaneously providing positive pressure and negative pressure, and completely separates the gas-liquid passage, so that the cleaning liquid and the waste liquid do not pass through any motor or hidden pipeline, and the liquid tank and the liquid pipeline can be completely disassembled and cleaned and do not produce the breeding of bacteria. BRIEF DESCRIPTION OF DRAWINGS
[0023] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment description will be briefly introduced, and obviously, the drawings in the following description are only five of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creative labor.
[0024] Figure 1 It is the external schematic view of the embodiment of the utility model;
[0025] Figure 2 It is the internal schematic view of the embodiment of the utility model;
[0026] Figure 3 It is the explosion view of the embodiment of the utility model;
[0027] Figure 4 It is the partial sectional view of the embodiment of the utility model;
[0028] Figure 5 It is the schematic view of the vacuum pump of the embodiment of the utility model.
[0029] The components include: 1. Rinse cover; 2. Liquid outlet; 3. Liquid return outlet; 4. Clean liquid tank; 5. Waste liquid tank; 6. Liquid outlet pipe; 7. Gas return pipe; 8. Gas output port; 9. Gas input port; 10. Dust cover; 11. Top cavity; 12. Positive pressure relief branch pipe; 13. Positive pressure regulating valve; 14. Negative pressure relief branch pipe; 15. Negative pressure regulating valve; 16. Main unit section; 17. Circuit board; 18. Vacuum pump; 19. Control button; 20. Silicone key sleeve. Detailed Implementation
[0030] To enhance understanding of this utility model, it will be described in further detail below with reference to the accompanying drawings and embodiments. These embodiments are only used to explain this utility model and do not limit the scope of protection of this utility model.
[0031] Example
[0032] like Figure 1 As shown, the positive and negative pressure electric nasal irrigator includes an irrigation cover 1, a vacuum pump 18, a clean liquid chamber 4, and a waste liquid chamber 5. The irrigation cover 1 is provided with an outlet 2 and a return outlet 3 corresponding to the two nostrils. The gas output port 8 of the vacuum pump 18 is connected to the clean liquid chamber 4. The inner end of the outlet 2 is connected to the clean liquid chamber 4 through an outlet pipe 6. The inner end of the return outlet 3 is connected to the waste liquid chamber 5. The top of the waste liquid chamber 5 is connected to the gas input port 9 of the vacuum pump 18 through a return air pipe 7.
[0033] During use, the outlet 2 and return outlet 3 are aligned with the two nostrils. The airflow output port of the vacuum pump 18 is connected to the clean liquid chamber 4, which compresses the gas into the clean liquid chamber 4. At this time, the pressure inside the clean liquid chamber 4 is greater than the ambient pressure, causing the cleaning fluid to flow outward along the outlet pipe 6, thus delivering the cleaning fluid to the outlet 2. The cleaning fluid enters both nasal cavities through one nostril and then flows from the other nostril along the return outlet 3 to the waste liquid chamber 5. The gas inlet 9 of the vacuum pump 18 is connected to the waste liquid chamber 5, which uses suction to expel the gas inside the waste liquid chamber 5. As the gas is expelled from the chamber, the air pressure inside the chamber gradually becomes lower than the external atmospheric pressure, forming a negative pressure state. This helps to accelerate the cleaning of the nasal cavity and expel the cleaning fluid into the waste liquid chamber 5, achieving a pressure balance state in the nasal cavity. This increases the flow rate of the cleaning fluid. The combination of rinsing and suction technology results in higher cleaning efficiency.
[0034] The principle of this technology is to use positive pressure pump pressure and negative pressure suction to completely separate the gas and liquid passages, so that the cleaning liquid and waste liquid do not pass through any motor or concealed pipelines, and the liquid tank and liquid pipeline can be completely cleaned without the growth of bacteria.
[0035] The flushing cover 1 is provided with a one-piece silica gel. The one-piece design ensures the stability of the structure, and the silica gel material is more comfortable when in contact with the skin.
[0036] The vacuum pump 18 is located in the main machine section, the upper end of the waste liquid bin 5 is provided with the flushing cover 1, and the lower end of the main machine section is provided with the clear liquid bin 4. The layout is more reasonable, and the clear liquid can be pumped and the waste liquid can be recovered more conveniently.
[0037] The flushing cover 1 is provided with a dust cover 10. The cleanliness of the flushing cover 1 is improved.
[0038] The two ends of the liquid outlet pipe 6 are respectively detachably connected to the liquid return port 3 and the clear liquid bin 4. It is convenient to detach and clean.
[0039] The inner wall of the flushing cover 1 is provided with a top cavity 11, the upper end of the gas return pipe 7 extends into the top cavity 11, and a gap is left between the gas return pipe 7 and the top cavity 11. The interference fit can prevent water from passing through the high-elasticity separation layer under normal pressure. The high-elasticity separation layer can allow gas to pass normally when the pressure difference between the two sides is large, that is, the negative pressure of the vacuum pump 18 can break through the gap between the high-elasticity separation layer and the gas return pipe 7, so that the waste liquid bin 5 forms a negative pressure state.
[0040] The gas output port 8 is provided with a positive pressure relief branch pipe 12 connected to the atmosphere, and the positive pressure relief branch pipe 12 is provided with a positive pressure regulating valve 13. When the pipeline flow is not smooth, the pressure of the gas output port 8 is too large, the positive pressure regulating valve 13 can be opened or increased, and the pressure is relieved to a certain extent.
[0041] The gas input port 9 is provided with a negative pressure relief branch pipe 14 connected to the atmosphere, and the negative pressure relief branch pipe 14 is provided with a negative pressure regulating valve 15. When the pipeline flow is not smooth, the pressure of the gas output port 8 is too small, the negative pressure regulating valve 15 can be opened or increased, and the pressure is relieved to a certain extent.
[0042] The main machine section 16 is provided with a battery, a circuit board 17 and the vacuum pump 18 which are electrically connected to each other, the circuit board 17 is provided with a control button 19, and the control button 19 is provided with a silica gel key cover 20. The stability of the electronic components is improved, and the waterproof effect of the silica gel key cover 20 is improved.
[0043] The clear liquid bin 4 is arranged at the bottom of the main machine section 16, and the waste liquid bin 5 is arranged above the main machine section 16. The waste liquid generated by cleaning can be conveniently recovered.
[0044] The sealing ring is arranged between the clear liquid bin 4 and the main machine section 16, and the outer surface of the clear liquid bin 4 is provided with a capacity scale.
[0045] The utility model discloses the beneficial effect:
[0046] The present scheme utilizes the principle that the vacuum pump 18 draws gas from one side to the other side, only needs to set up a gas pump to can realize the effect of providing positive pressure and negative pressure simultaneously, and separates the gas-liquid passage completely, thereby making the cleaning liquid and waste liquid not pass through any motor or hidden pipeline, and the liquid bin and liquid pipeline can be completely disassembled and cleaned and will not produce the breeding of bacteria.
[0047] The technical features of the above embodiments can be combined arbitrarily, and to make the description simple, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combination of the technical features does not exist contradictory, it should be considered that it is the range of the present application.
[0048] The above-described embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it should not be understood as the limitation of the scope of the utility model patent. It should be pointed out that for ordinary skilled in the art, on the premise of not departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the present application patent should be subject to the appended claims.
Claims
1. A positive and negative pressure electric nasal irrigator, characterized in that, It includes a flushing cover (1), a vacuum pump (18), a clean liquid tank (4), and a waste liquid tank (5); The rinsing cap (1) is provided with an outlet (2) and a return outlet (3) corresponding to the two nostrils. The gas output port (8) of the vacuum pump (18) is connected to the clear liquid tank (4); The inner end of the outlet (2) is connected to the clear liquid tank (4) through the outlet pipe (6); The inner end of the return port (3) is connected to the waste liquid tank (5); The top of the waste liquid tank (5) is connected to the gas inlet (9) of the vacuum pump (18) via a return gas pipe (7).
2. The positive and negative pressure electric nasal irrigator according to claim 1, characterized in that: The flushing cover (1) is made of one piece of silicone, and a dust cover (10) is adapted on the flushing cover (1).
3. The positive and negative pressure electric nasal irrigator according to claim 2, characterized in that: The vacuum pump is located in the main unit section, the waste liquid tank (5) is provided above the main unit section, the flushing cover (1) is fastened to the upper port of the waste liquid tank (5), and the clear liquid tank (4) is provided below the main unit section.
4. The positive and negative pressure electric nasal irrigator according to claim 3, characterized in that: The two ends of the liquid outlet pipe (6) are detachably connected to the liquid outlet (2) and the clear liquid tank (4), respectively.
5. The positive and negative pressure electric nasal irrigator according to claim 1, characterized in that: The inner wall of the flushing cover (1) is provided with a top cavity (11), the upper end of the return air pipe (7) extends into the top cavity (11), and a gap is left between the return air pipe (7) and the top cavity (11).
6. The positive and negative pressure electric nasal irrigator according to claim 1, characterized in that: The gas outlet (8) is provided with a positive pressure relief branch pipe (12) connected to the atmosphere, and the positive pressure relief branch pipe (12) is provided with a positive pressure regulating valve (13).
7. The positive and negative pressure electric nasal irrigator according to claim 1, characterized in that: The gas inlet (9) is provided with a negative pressure relief branch pipe (14) connected to the atmosphere, and the negative pressure relief branch pipe (14) is provided with a negative pressure regulating valve (15).
8. The positive and negative pressure electric nasal irrigator according to claim 1, characterized in that: It includes a main unit (16), which is equipped with a battery, a circuit board (17) and a vacuum pump (18) that are electrically connected to each other. The circuit board (17) is equipped with a control button (19). The control button (19) is equipped with a silicone key sleeve (20).
9. The positive and negative pressure electric nasal irrigator according to claim 8, characterized in that: The clean liquid tank (4) is located at the bottom of the main unit section (16), and the waste liquid tank (5) is located above the main unit section (16).
10. The positive and negative pressure electric nasal irrigator according to claim 8, characterized in that: A sealing ring is provided between the clear liquid tank (4) and the main unit section (16), and a capacity scale is provided on the outer surface of the clear liquid tank (4).
Citation Information
Patent Citations
Nasal wash
CN106265042B