Control valve structure of nasal irrigator

Abstract

The utility model discloses a control valve structure of a nasal irrigator. The control valve structure comprises a pump shell, a piston assembly and a driving assembly. The pump shell is provided with an inner cavity and a plurality of holes communicated with the inner cavity, and the holes comprise an air inlet hole and at least one pressure relief hole; the piston assembly is rotatably arranged in the inner cavity; the driving assembly is in driving connection with the piston assembly and used for driving the piston assembly to rotate. When the piston assembly rotates to different positions, different holes in the multiple holes can be communicated. The utility model provides a control valve structure of a nasal irrigator, which can realize multi-path control of airflow through rotation of a piston, and is convenient for the nasal irrigator to realize atomization and waterline function switching.

Description

Technical Field

[0001] This utility model relates to the field of nasal irrigator technology, and more specifically to a nasal irrigator control valve structure. Background Technology

[0002] An electric nasal irrigator is a tool used to clean the nasal cavity, removing impurities and harmful substances to prevent them from accumulating and causing bacteria that could lead to nasal diseases. However, current nasal irrigators on the market can only control a single water path, producing a single mist or water stream.

[0003] For example, the portable nasal irrigator's flushing water system disclosed in Chinese Patent No. CN216603482U includes a clean water outlet pipe and a wastewater return pipe connected to the nasal irrigator head, as well as a water storage tank. The water storage tank is equipped with a water outlet and a rotary valve. The input end of the clean water outlet pipe is connected to the rotary valve, and the water storage tank is connected to an air pump via an air pipe. One end of the wastewater return pipe is connected to the nasal irrigator head, and the other end is connected to the wastewater tank. Although this prior art adds a wastewater return water path, the flushing method remains singular, and bacteria can easily grow in the pipes through which the fluid passes if they are not cleaned for a long time. Utility Model Content

[0004] In order to overcome the above-mentioned shortcomings of the prior art, this utility model provides a nasal irrigator control valve structure, which can realize multi-path control of airflow through piston rotation, and facilitate the switching of atomization and water line functions of the nasal irrigator.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a nasal irrigator control valve structure, including a pump housing, a piston assembly and a drive assembly; the pump housing has an inner cavity and multiple holes communicating with the inner cavity, the multiple holes including an air inlet and at least one pressure relief hole; the piston assembly is rotatably disposed in the inner cavity; the drive assembly is drivenly connected to the piston assembly and is used to drive the piston assembly to rotate; when the piston assembly rotates to different positions, different holes among the multiple holes can be connected to deliver gas to the corresponding pipe or shut off the air passage.

[0006] This technical solution provides a nasal irrigator control valve structure that enables communication between different holes on the pump housing via a piston rotatably mounted in the pump housing. By rotating the piston, the valve closes the airflow in the inner cavity. It can freely switch between multiple angles according to different arrangements and combinations of the holes, thereby achieving multi-path control of the airflow and allowing the nasal irrigator to easily switch between atomization and water line functions.

[0007] In a preferred embodiment, the piston assembly includes a piston and a piston support, and the driving component is a motor; the piston is sleeved on the piston support, and the bottom end of the piston support is connected to the motor drive. The aforementioned piston assembly, composed of a piston and a piston support, has few components and a simple structure.

[0008] In a preferred embodiment, the upper end of the piston support is provided with a cross skeleton, and the piston support is fixedly connected to the piston through the cross skeleton, which can prevent the piston from shifting during rotation.

[0009] In a preferred embodiment, the lower end of the piston support is provided with a slot, and the motor is fixedly connected to the piston support through the slot. The rotation of the motor can drive the entire piston assembly to rotate through the slot. The structure is simple and the connection is convenient.

[0010] In a preferred embodiment, the slot is a cross-shaped slot, with a circular groove in the center. This dual slot structure (cross-shaped and circular) ensures a more secure and reliable connection with the motor.

[0011] In a preferred embodiment, the piston is provided with a sealing part, which seals the piston with the pump housing to ensure that the air flow in the pump housing is not lost when the piston rotates.

[0012] In a preferred embodiment, the piston is provided with an airflow groove, and an airflow cavity is formed between the airflow groove and the pump housing. When the piston assembly rotates to different positions, the airflow cavity connects different air inlets to deliver gas to the corresponding pipes, thereby enabling the switching between different rinsing modes of the nasal irrigator.

[0013] In a preferred embodiment, the piston is further provided with a pressure relief groove, and a pressure relief cavity is formed between the pressure relief groove and the pump housing. The pressure relief cavity is connected to the airflow cavity. When the pressure relief groove moves to the pressure relief hole position, the gas in the airflow cavity will be depressurized from the pressure relief groove through the pressure relief hole to close the air passage and stop supplying air to the nasal irrigator.

[0014] The above technical solution achieves communication between different air inlets through airflow grooves on the piston and pressure relief through pressure relief holes. With a simple structure, gas can be delivered to the corresponding pipeline or the gas path can be shut off.

[0015] In a preferred embodiment, the piston is provided with two airflow grooves and one pressure relief groove. The two airflow grooves are used to connect different air inlets, and the pressure relief groove is used to relieve pressure.

[0016] In a preferred embodiment, the pump casing is provided with three air inlets and one pressure relief hole along the circumferential direction.

[0017] As can be seen from the above technical solution, compared with the prior art, the beneficial effects of this utility model are: the nasal irrigator control valve structure provided by this utility model can realize the connection of different holes on the pump housing through a piston rotatably set in the pump housing, and close the valve of the airflow in the inner cavity by rotating the piston. It can freely switch at multiple angles according to different arrangements and combinations between the holes, thereby realizing multi-path control of the airflow, so that the nasal irrigator can easily realize the switching between atomization and water line functions; moreover, the water line does not need to go through pipes, reducing bacterial growth.

[0018] In addition, other advantages of this invention will be set forth in the description which follows, in part will be obvious from the description, or may be learned by practice of this invention. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0020] Figure 1 This is a cross-sectional structural diagram of the control valve structure of the nasal irrigator of this utility model;

[0021] Figure 2 This is a schematic diagram of the piston structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the upper end of the piston support of this utility model;

[0023] Figure 4 This is a schematic diagram of the lower end of the piston support of this utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the motor of this utility model;

[0025] Figure 6 This is a cross-sectional structural diagram of the control valve structure of the nasal irrigator of this utility model in the open state;

[0026] Figure 7 This is a cross-sectional structural diagram of the control valve structure of the nasal irrigator of this utility model in the closed state;

[0027] Figure 8 This is a schematic diagram illustrating the application scenario of the control valve structure of the nasal irrigator of this utility model;

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Pump casing; 101. Air inlet; 102. Pressure relief port; 2. Piston; 201. Sealing part; 202. Airflow groove; 203. Pressure relief groove; 3. Piston support; 301. Cross skeleton; 302. Slot; 4. Motor; 5. Water tank; 6. Air pump; A1. First airflow chamber; A2. Second airflow chamber; A3. Pressure relief chamber; T1. Outer nozzle; T2. Inner nozzle. Detailed Implementation

[0030] 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, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] In the description of this utility model, it should be understood that the terms "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0032] Reference Figure 1-8 This invention describes a nasal irrigator control valve structure according to an embodiment of the present invention, which is applied in an electric nasal irrigator.

[0033] In one embodiment, such as Figure 1-8 As shown, a nasal irrigator control valve structure includes a pump housing 1, a piston assembly, and a drive assembly; the pump housing 1 has an inner cavity and multiple holes communicating with the inner cavity, the multiple holes including an air inlet 101 and at least one pressure relief hole 102; the piston assembly is rotatably disposed in the inner cavity; the drive assembly is drivenly connected to the piston assembly and is used to drive the piston assembly to rotate.

[0034] When the piston assembly rotates to different positions, it can connect different holes in multiple orifices to deliver gas to the corresponding pipe or shut off the gas path.

[0035] The nasal irrigator control valve structure can be installed on the air pump 6. The pump housing 1 can be the housing of the air pump 6. The air inlet 101 and the pressure relief port 102 are connected to the water tank 5. The water tank 5 is pressurized or subjected to negative pressure through the piston assembly.

[0036] In this embodiment, the piston 2 is provided with an airflow groove 202, and an airflow cavity is formed between the airflow groove 202 and the pump housing 1. When the piston assembly rotates to different positions, the airflow cavity connects different air inlets 101 to deliver gas to the corresponding pipes.

[0037] In this embodiment, the piston 2 is also provided with a pressure relief groove 203, and a pressure relief cavity is formed between the pressure relief groove 203 and the pump housing 1. The pressure relief cavity is connected to the airflow cavity. When the pressure relief groove 203 moves to the position of the pressure relief hole 102, the gas in the airflow cavity will be depressurized from the pressure relief groove 203 through the pressure relief hole 102 to close the air passage.

[0038] In this embodiment, the pump housing 1 may be provided with three air inlets 101 and one pressure relief hole 102 along the circumference, and the piston 2 is provided with two airflow grooves 202 and one pressure relief groove 203. The pump housing 1 is provided with four holes, three of which are air inlets 101 and one is a pressure relief hole 102. When the piston assembly rotates at different angles, different functions can be achieved through different combinations of the four holes.

[0039] like Figure 6-7 As shown, when the piston assembly rotates, gas flows from the first airflow chamber A1, formed by the airflow groove 202 of the pump housing 1 and the piston 2, to the second airflow chamber A2, and is delivered to the pipe corresponding to the air inlet 101 at that location. This pipe can be... Figure 8 The P1 or P2 channel in the piston 2 is connected to different air inlets 101. When the pressure relief groove 203 of the piston 2 rotates to the pressure relief hole 102 position, the gas in the first airflow chamber A1 and the second airflow chamber A2 will be depressurized from the pressure relief chamber A3 through the pressure relief hole 102.

[0040] like Figure 8 As shown, when piston 2 rotates, airflow enters the pipe. When the airflow exits through channel P1, atmospheric pressure creates a negative pressure, causing water from tank 5 to exit from the water flow gap area P3 between the outer nozzle T1 and the inner nozzle T2. When the water passes through the nozzle orifice, the airflow in channel P1 impacts the water, creating an atomization effect, thus achieving the atomization function. Rotating the piston assembly causes airflow to exit from both channels P1 and P2 simultaneously. At this time, the air path in channel P2 simultaneously pressurizes tank 5, causing the internal pressure of tank 5 to increase instantaneously, accelerating the water flow. Through the combination of air paths in channels P1 and P2, the water jet effect is created when the airflow impacts the tank, achieving the water jet function. When the piston rotates to the pressure relief hole position A4, the gas from A1 and A2 will be released from piston A3 through the pressure relief hole, stopping the water flow.

[0041] In this embodiment, the piston assembly includes a piston 2 and a piston support 3, and the driving assembly is a motor 4; the piston 2 is sleeved on the piston support 3, and the bottom end of the piston support 3 is drivenly connected to the motor 4.

[0042] The piston 2 can be made of silicone. In practice, when the motor 4 rotates, it drives the piston support 3 to rotate, and the piston support 3 drives the piston 2 to rotate, thereby realizing the motor 4 driving the piston assembly.

[0043] In this embodiment, the upper end of the piston support 3 is provided with a cross skeleton 301. The piston support 3 is fixedly connected to the piston 2 through the cross skeleton 301, which can prevent the piston 2 from shifting when rotating.

[0044] In this embodiment, the lower end of the piston bracket 3 is provided with a slot 302. The motor 4 is fixedly connected to the piston bracket 3 through the slot 302. The rotation of the motor 4 can drive the entire piston assembly to rotate through the slot 302. The structure is simple and the connection is convenient.

[0045] In this embodiment, the slot 302 is a cross-shaped slot, and a circular groove is provided in the middle of the cross-shaped slot. The slot 302 adopts a double slot structure of cross shape and circle. The motor 4 is provided with a protruding structure that cooperates with the slot 302, which can make the connection between the motor 4 and the piston assembly more secure and reliable.

[0046] In this embodiment, the piston 2 is provided with a sealing part 201. The piston 2 is sealed with the pump housing 1 through the sealing part 201 to ensure that the air flow in the pump housing 1 is not lost when the piston 2 rotates.

[0047] Other configurations and operations of the nasal irrigator control valve structure according to embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0048] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0049] In the description of this specification, references to the terms "embodiment," "specific embodiment," "example," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example that is included in at least one embodiment or example of the present invention.

[0050] In this specification, the illustrative expressions of the terms used do not necessarily refer to the same embodiments or examples. Moreover, the specific features, structures, materials, or characteristics described may be combined with each other in any suitable manner in one or more embodiments or examples without interference or contradiction.

Claims

1. A nasal irrigator control valve structure, characterized in that: Includes pump housing (1), piston assembly and drive assembly; The pump housing (1) is provided with an inner cavity and a plurality of holes communicating with the inner cavity, the plurality of holes including an air inlet (101) and at least one pressure relief hole (102); The piston assembly is rotatably disposed within the inner cavity; The drive assembly is driven to the piston assembly and is used to drive the piston assembly to rotate; When the piston assembly rotates to different positions, different holes among the plurality of holes can be connected.

2. The nasal irrigator control valve structure according to claim 1, characterized in that: The piston assembly includes a piston (2) and a piston support (3), and the drive assembly is a motor (4); The piston (2) is sleeved on the piston bracket (3), and the bottom end of the piston bracket (3) is driven by the motor (4).

3. The nasal irrigator control valve structure according to claim 2, characterized in that: The piston support (3) has a cross skeleton (301) at its upper end, and the piston support (3) is fixedly connected to the piston (2) through the cross skeleton (301).

4. The nasal irrigator control valve structure according to claim 3, characterized in that: The piston bracket (3) has a slot (302) at its lower end, and the motor (4) is fixedly connected to the piston bracket (3) through the slot (302).

5. The nasal irrigator control valve structure according to claim 4, characterized in that: The slot (302) is a cross-shaped slot, and a circular groove is provided in the middle of the cross-shaped slot.

6. A nasal irrigator control valve structure according to any one of claims 2 to 5, characterized in that: The piston (2) is provided with a sealing part (201), and the piston (2) is sealed to the pump housing (1) through the sealing part (201).

7. The nasal irrigator control valve structure according to claim 6, characterized in that: The piston (2) is provided with an airflow groove (202), and an airflow cavity is formed between the airflow groove (202) and the pump housing (1); When the piston assembly rotates to different positions, the airflow cavity connects the different air inlets (101).

8. The nasal irrigator control valve structure according to claim 7, characterized in that: The piston (2) is also provided with a pressure relief groove (203), and a pressure relief cavity is formed between the pressure relief groove (203) and the pump housing (1), and the pressure relief cavity is connected to the airflow cavity; When the pressure relief groove (203) moves to the position of the pressure relief hole (102), the gas in the airflow cavity will be depressurized from the pressure relief groove (203) through the pressure relief hole (102).

9. The nasal irrigator control valve structure according to claim 8, characterized in that: The piston (2) is provided with two airflow grooves (202) and one pressure relief groove (203).

10. The nasal irrigator control valve structure according to claim 1, characterized in that: The pump casing (1) is provided with three air inlets (101) and one pressure relief hole (102) along the circumferential direction.

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