Positive and negative pressure nasal washing device
By designing a positive and negative pressure nasal irrigation device, and adopting a flexible cap and waste liquid tank structure, the device uses negative pressure to absorb the water after cleaning, solving the problem that existing nasal irrigators cannot collect water and improving the convenience of cleaning.
Patent Information
- Application Number
- CN202422824007.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-19
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-11-19
AI Technical Summary
Existing nasal irrigators cannot effectively collect the water after rinsing the nasal cavity, making rinsing inconvenient.
A positive and negative pressure nasal irrigation device was designed, which includes a flexible cap, a waste liquid tank, an air inlet channel and a liquid inlet head. The water after rinsing is drawn into the waste liquid tank by negative pressure, and a flexible ring and groove structure is used to prevent water leakage.
It enables effective collection of water after nasal irrigation, prevents water leakage, and improves the convenience of nasal irrigation.
Smart Images

Figure CN223654160U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of nasal irrigation equipment technology, and in particular to a positive and negative pressure nasal irrigation device. Background Technology
[0002] With increasing public awareness of respiratory health, and the frequent occurrence of illnesses caused by inhaling bacteria through the nasal cavity, there is a growing variety of oral and nasal hygiene products on the market, especially nasal irrigators for cleaning the nasal cavity.
[0003] Nasal irrigators clean the nasal cavity by spraying water into it. However, many existing nasal irrigators can only spray water to clean the nasal cavity and cannot collect the water after cleaning, which may cause inconvenience in nasal cavity cleaning. Utility Model Content
[0004] To address the technical problem that many nasal irrigators cannot collect the water after nasal irrigation, this invention provides a positive and negative pressure nasal irrigation device.
[0005] The technical solution adopted by this utility model to solve its technical problem is:
[0006] A positive and negative pressure nasal irrigation device includes a flexible cover and a waste liquid tank; the flexible cover is connected to the waste liquid tank and has a connecting cavity; an inlet head and an outlet head are fixedly installed on the flexible cover, and the inlet head and the outlet head are respectively provided with an inlet hole and an outlet hole; an air intake channel and an inlet channel are fixedly installed on the waste liquid tank, the inlet channel is inserted into the outlet hole, and the air intake channel extends into the connecting cavity.
[0007] Furthermore, a flexible ring is fixedly disposed inside the connecting cavity, and the flexible ring abuts against the air intake channel.
[0008] Furthermore, a spray head is fixedly installed inside the liquid outlet hole.
[0009] Furthermore, the waste liquid tank is provided with an annular groove, and the flexible cover is fixedly provided with an annular block, which engages with the groove.
[0010] Furthermore, a collection port is provided on the liquid outlet head.
[0011] Furthermore, the number of collection ports is two.
[0012] The beneficial effects of this utility model are:
[0013] 1. This utility model uses a waste liquid tank, a flexible cover, an air intake channel, a connecting cavity, and a liquid inlet head to collect the water after nasal rinsing, solving the problem that many nasal irrigators cannot collect the water after nasal rinsing.
[0014] 2. This utility model uses a flexible ring that can close the connecting cavity when water is not collected after rinsing the nasal cavity, preventing water from the waste liquid tank from entering the connecting cavity and the inhalation channel. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the positive and negative pressure nasal irrigation device in this utility model;
[0016] Figure 2 for Figure 1 A sectional view;
[0017] Figure 3 for Figure 1 Cross-sectional view of the waste liquid tank and the liquid outlet;
[0018] Figure 4 for Figure 2 A magnified view of part A in the middle;
[0019] Figure 5 for Figure 4 Diagram showing the state of the connecting cavity being opened;
[0020] Figure 6 for Figure 2 A magnified view of part B in the middle section;
[0021] Figure 7 for Figure 2 A magnified view of part C in the middle;
[0022] Among them, 1-waste liquid tank, 2-flexible cover, 3-liquid inlet, 4-liquid outlet, 5-collection port, 6-spray head, 7-liquid inlet channel, 8-air intake channel, 9-connecting cavity, 10-flexible ring, 11-slot, 12-block, 13-liquid inlet head, 14-liquid outlet head. Detailed Implementation
[0023] 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.
[0024] Example:
[0025] The specific implementation process of this utility model: positive and negative pressure nasal irrigation device, such as... Figures 1-7 As shown, it includes a flexible cover 2 and a waste liquid tank 1; the flexible cover 2 is connected to the waste liquid tank 1 and has a connecting cavity 9. The flexible cover 2 is fixedly provided with an inlet head 13 and an outlet head 14. The inlet head 13 and the outlet head 14 are respectively provided with an inlet hole 3 and an outlet hole 4. The waste liquid tank 1 is fixedly provided with an air intake channel 8 and an inlet channel 7. The inlet channel 7 is inserted into the outlet hole 4, and the air intake channel 8 extends into the connecting cavity 9.
[0026] The inlet channel 7 connects to an external cleaning water supply device, and the inhalation channel 8 connects to an external air extraction device. When cleaning the nasal cavity, first insert the inlet head 13 and the outlet head 14 into the user's two nostrils respectively. Then, activate the external cleaning water supply device. The cleaning water will enter the outlet hole 4 through the inlet channel 7 and then enter one of the user's nostrils for cleaning. The cleaning water will enter the nasal cavity through one nostril for cleaning. Activate the external air extraction device, which will extract the gas from the waste liquid chamber 1 through the inhalation channel 8. The liquid tank 1 is under negative pressure. Under the action of negative pressure, the cleaning water in the nasal cavity will enter the inlet port 3 through the other nostril and then enter the waste liquid tank 1. The flexible cover 2, the inlet head 13 and the outlet head 14 can all be made of silicone. The inlet head 13 and the outlet head 14 can be ergonomically designed to form a four-sided seal after fitting with the nostril. The inlet channel 7 is inserted into the outlet port 4. The inner wall of the outlet port 4 will press against the outer surface of the inlet channel 7 to form a seal and prevent the cleaning water in the outlet port 4 from leaking into the waste liquid tank 1.
[0027] like Figure 2 , Figure 4 as well as Figure 5 As shown, a flexible ring 10 is fixedly disposed inside the connecting cavity 9, and the flexible ring 10 abuts against the air intake channel 8.
[0028] When the external suction device is activated, it extracts gas from the connecting cavity 9 through the suction channel 8. Then, the inner end of the flexible ring 10 bends upward, creating a gap between the flexible ring 10 and the suction channel 8, opening the connecting cavity 9. The external suction device can then extract gas from the waste liquid tank 1 through the suction channel 8 and the connecting cavity 9. When the external suction device is deactivated, the inner end of the flexible ring 10 automatically unfolds downward, forming a contact between the inner end of the flexible ring 10 and the outer surface of the suction channel 8. The connecting cavity 9 is then closed, preventing water from the waste liquid tank 1 from entering the connecting cavity 9. The flexible ring 10 can be made of silicone.
[0029] like Figure 2 As shown, a spray head 6 is fixedly installed inside the liquid outlet hole 4.
[0030] After the cleaning water enters the outlet hole 4 through the inlet channel 7, it enters the spray head 6 and is then sprayed into the nostrils in the form of water mist.
[0031] like Figure 2 and Figure 6 As shown, the waste liquid tank 1 has an annular groove 11, and the flexible cover 2 has an annular block 12 fixedly installed on it, the block 12 engaging with the groove 11.
[0032] The flexible cover 2 and the waste liquid tank 1 can be connected by the slot 11 and the locking block 12. The locking block 12 presses against the slot 11 to form a seal, preventing water in the waste liquid tank 1 from leaking out from the gap between the waste liquid tank 1 and the flexible cover 2.
[0033] like Figure 1 and Figure 3 As shown, the liquid outlet 14 has a collection port 5.
[0034] Waste liquid tank 1 can draw the cleaning water from the nostrils through collection port 5. Collection port 5 can cooperate with liquid inlet port 3 to collect the cleaning water from the two nostrils respectively.
[0035] like Figure 1 and Figure 3 As shown, there are two collection ports 5.
[0036] The two collection ports 5 allow for faster removal of cleaning water from the nostrils.
[0037] The above embodiments should not limit the present invention in any way. All technical solutions obtained by equivalent substitution or equivalent conversion fall within the protection scope of the present invention.
Claims
1. A positive and negative pressure nasal irrigation device, characterized in that: Includes a flexible cap and a waste liquid tank; The flexible cover is connected to the waste liquid tank and has a connecting cavity. The flexible cover is fixedly provided with an inlet head and an outlet head. The inlet head and the outlet head are respectively provided with an inlet hole and an outlet hole. The waste liquid tank is fixedly provided with an air intake channel and an inlet channel. The inlet channel is inserted into the outlet hole, and the air intake channel extends into the connecting cavity.
2. The positive and negative pressure nasal irrigation device according to claim 1, characterized in that: A flexible ring is fixedly installed inside the connecting cavity, and the flexible ring abuts against the air intake channel.
3. The positive and negative pressure nasal irrigation device according to claim 1, characterized in that: A spray head is fixedly installed inside the liquid outlet hole.
4. The positive and negative pressure nasal irrigation device according to claim 1, characterized in that: The waste liquid tank has an annular groove, and the flexible cover has an annular block that engages with the groove.
5. The positive and negative pressure nasal irrigation device according to claim 1, characterized in that: The liquid outlet head is equipped with a collection port.
6. The positive and negative pressure nasal irrigation device according to claim 5, characterized in that: The number of collection ports is two.