Ear washer

Abstract

The utility model discloses an ear washer which comprises a liquid storage part, a liquid return part, a nozzle assembly and a power device, and the liquid storage part is provided with a liquid storage cavity used for containing cleaning liquid; the liquid return part is provided with a sewage cavity, the sewage cavity is arranged above the liquid storage cavity at intervals, and a liquid return opening is formed in the end, away from the liquid storage cavity, of the sewage cavity; the nozzle assembly is located in the sewage cavity and communicated with the liquid storage cavity, and the end, away from the liquid storage cavity, of the nozzle assembly extends towards the liquid return opening and is provided with a liquid outlet hole; the power device is used for providing power for the cleaning liquid in the liquid storage cavity and driving the cleaning liquid to enter the nozzle assembly and be sprayed out of the liquid outlet hole. The liquid return piece can store sewage flowing out of the ear canal in the sewage cavity through the liquid return opening, the sewage is prevented from flowing to the body or clothes of a user, the sewage cavity and the liquid storage cavity are arranged at intervals in the vertical direction, the circumferential size of the ear washing device can be reduced, and the user can hold the ear washing device on the hand to use the ear washing device conveniently.

Description

TECHNICAL FIELD

[0001] The utility model relates to ear canal cleaning technical field especially relates to a kind of ear cleaners. BACKGROUND

[0002] Ear cleaner is a kind of cleaning liquid is injected to the inside of ear canal, to clean the device of ear canal, to avoid the sewage from the ear canal flows to user or clothes, will choose to set up the space of recycling sewage on ear cleaner.

[0003] However, the existing ear cleaner, the space of storing cleaning liquid and the space of storing sewage are usually arranged side by side, which will cause the circumferential dimension of the ear cleaner to be large, and it is inconvenient for users to hold and use. UTILITY MODEL CONTENTS

[0004] Therefore, the utility model provides an ear cleaner to solve the problem that the circumferential dimension of the existing ear cleaner is large and inconvenient to hold and use.

[0005] The ear cleaner provided in the present application comprises:

[0006] The liquid storage member is provided with a liquid storage cavity for containing cleaning liquid;

[0007] The liquid return member is provided with a sewage cavity, which is arranged above the liquid storage cavity at intervals, and one end of the sewage cavity away from the liquid storage cavity forms a liquid return port;

[0008] The nozzle assembly is located in the sewage cavity and communicates with the liquid storage cavity, and one end of the nozzle assembly away from the liquid storage cavity extends towards the liquid return port and is provided with a liquid outlet hole;

[0009] The power device is used to provide power to the cleaning liquid in the liquid storage cavity, to drive the cleaning liquid into the nozzle assembly and spray out from the liquid outlet hole.

[0010] In some embodiments, the nozzle assembly comprises a vertical part and an inclined part that communicate with each other, the vertical part communicates with the liquid storage cavity, the inclined part extends obliquely towards the liquid return port relative to the vertical part, and the liquid outlet hole communicates with the vertical part or is arranged in the vertical part.

[0011] In some embodiments, the included angle between the vertical part and the inclined part is between 90° and 150°.

[0012] In some embodiments, the nozzle assembly comprises a liquid delivery tube and a nozzle, the liquid delivery tube comprises the vertical part and the inclined part, the nozzle is mounted at one end of the inclined part away from the vertical part and extends to the outside of the liquid return port along the extension direction of the inclined part, and the liquid outlet hole is arranged at one end of the nozzle away from the inclined part.

[0013] In some embodiments, the liquid return member comprises a main body portion and a fitting portion provided at a top end of the main body portion, the main body portion and the fitting portion enclosing the sewage cavity, the liquid return opening being located at an end of the fitting portion away from the main body portion, an inner diameter of the end of the fitting portion away from the main body portion being greater than an inner diameter of an end of the main body portion close to the fitting portion.

[0014] In some embodiments, the fitting portion extends in a direction away from the main body portion in a manner that the inner diameter gradually increases; and / or,

[0015] A height of a side of the fitting portion close to the liquid outlet hole is lower than a height of a side of the fitting portion away from the liquid outlet hole.

[0016] In some embodiments, the power device comprises an electric water pump, the electric water pump comprising a pump body and a motor, the motor being connected with an impeller in the pump body, an inlet of the pump body being in communication with the liquid storage cavity, an outlet of the pump body being in communication with the nozzle assembly.

[0017] In some embodiments, the ear cleaner further comprises a connecting housing, the connecting housing being connected with the liquid storage member and the liquid return member respectively, an end of the liquid return member extending to an inside of the connecting housing towards the liquid storage member, a portion of the liquid return member located in the connecting housing and the connecting housing forming an installation space therebetween, the electric water pump being installed in the installation space; and / or,

[0018] A temperature sensor is installed on the liquid storage member, the temperature sensor being used to detect a temperature of the cleaning liquid in the liquid storage cavity.

[0019] In some embodiments, the power device further comprises a manual water pump, the manual water pump comprising a valve seat and an elastic button, the valve seat being provided with an inner cavity and a valve seat inlet and a valve seat outlet in communication with the inner cavity respectively, the valve seat inlet being in communication with the liquid storage cavity, the valve seat outlet being in communication with the nozzle assembly;

[0020] The elastic button is movably coupled with the valve seat and extends into the inner cavity, the elastic button comprising a pressed state and a released state, in the pressed state, the cleaning liquid in the inner cavity moves towards the nozzle assembly and is sprayed out of the liquid outlet hole, in the released state, the cleaning liquid in the liquid storage cavity moves into the inner cavity.

[0021] In some embodiments, the manual water pump further comprises an inlet valve bead and an outlet valve bead, the valve seat inlet is in communication with the liquid storage cavity through a liquid inlet channel, the inlet valve bead is located in the liquid inlet channel, the valve seat outlet is in communication with the nozzle assembly through a liquid outlet channel, the outlet valve bead is located in the liquid outlet channel;

[0022] In the pressing state, the liquid outlet channel is in an open state, and the liquid inlet channel is in a closed state; in the unpressing state, the liquid outlet channel is in a closed state, and the liquid inlet channel is in an open state.

[0023] In some embodiments, the liquid inlet channel is provided with a limiting portion for limiting the inlet valve ball; and / or,

[0024] The liquid outlet channel is provided with a limiting portion for limiting the outlet valve ball.

[0025] In some embodiments, the hole diameter of the liquid outlet hole is between 1mm and 7mm.

[0026] The sewage cavity and the liquid storage cavity are arranged in the up-down direction, which is beneficial to reduce the circumferential size of the ear washer, and facilitates the user to hold the ear washer in the hand for use. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 A structure schematic view of the ear washer provided in an embodiment of the present application is shown in FIG. 1.

[0028] Figure 2 A structure schematic view of the ear washer provided in an embodiment of the present application is shown in FIG. 1. Figure 1 An exploded schematic view of the ear washer shown in FIG. 1 is shown in FIG. 2.

[0029] Figure 3 A cross-sectional view of the ear washer shown in FIG. 1 is shown in FIG. 3. Figure 1

[0030] A cross-sectional view of the ear washer shown in FIG. 1 is shown in FIG. 3. Figure 4 Figure 3 An assembly schematic view of the liquid return member and the nozzle assembly shown in FIG. 1 is shown in FIG. 4.

[0031] Figure 5 A cross-sectional view of the power device and the connecting shell shown in FIG. 1 is shown in FIG. 5. Figure 3

[0032] A structure schematic view of the ear washer provided in another embodiment of the present application is shown in FIG. 6. Figure 6

[0033] A structure schematic view of the ear washer provided in another embodiment of the present application is shown in FIG. 6. Figure 7 Figure 6 A structure schematic view of the ear washer provided in another embodiment of the present application is shown in FIG. 6.

[0034] Figure 8 A cross-sectional view of the ear washer shown in FIG. 1 is shown in FIG. 3. Figure 6

[0035] ​​​In the figure: 10, ear cleaner; 12, liquid storage member; 14, liquid return member; 16, nozzle assembly; 18, power device; 20, liquid storage cavity; 22, sewage cavity; 24, liquid return port; 26, liquid outlet hole; 28, upright part; 30, inclined part; 32, liquid delivery pipe; 34, nozzle; 36, main body part; 38, fitting part; 40, connecting housing; 42, liquid inlet pipe; 44, pump body; 46, motor; 48, pump body inlet; 50, pump body outlet; 52, liquid outlet pipe; 54, battery; 56, control button; 58, mounting space; 60, mounting bracket; 62, mounting pipe; 64, valve seat; 66, elastic button; 68, inner cavity; 70, valve seat inlet; 72, valve seat outlet; 74, button body; 76, piston; 78, spring; 80, inlet valve bead; 82, outlet valve bead; 84, liquid inlet channel; 86, liquid outlet channel; 88, water inlet pipe; 90, water outlet pipe; 92, connecting column; 94, protruding part; 96, communication hole; 98, connecting pipe; 99, limiting part. DETAILED DESCRIPTION

[0036] The utility model will be further described below in combination with the drawings and specific implementation, it is to be explained that, under the premise of not conflicting, the following described each embodiment or each technical feature between can be combined to form new embodiment.

[0037] It is to be explained that, all directionality of the utility model embodiment instruction (such as up, down, left, right, front, back, inside, outside, top, bottom...) is only used to explain the relative position relationship between each component in a certain specific posture (such as shown in the drawings), if the specific posture changes, then the directionality instruction also changes accordingly.

[0038] It is to be further explained that, when element is referred to as "fixed on" or "set on" another element, the element can be directly on another element or possibly with a center element simultaneously.When an element is referred to as "connected" to another element, it can be directly connected to another element or possibly with a center element simultaneously.

[0039] Please refer to Figures 1 to 4The utility model discloses an ear cleaning device 10, including liquid storage 12, back liquid 14, nozzle assembly 16 and power device 18, wherein, liquid storage 12 is equipped with liquid storage cavity 20, to be used for accommodating cleaning fluid, and the cleaning fluid can be clean water, can also be hydrogen peroxide, normal saline etc. Back liquid 14 is equipped with sewage chamber 22, and sewage chamber 22 is spaced and arranged above liquid storage cavity 20, namely, sewage chamber 22 and liquid storage cavity 20 do not directly communicate, and the end of sewage chamber 22 away from liquid storage cavity 20 forms back liquid port 24. Nozzle assembly 16 is located in sewage chamber 22, and nozzle assembly 16 is communicated with liquid storage cavity 20, and the end of nozzle assembly 16 away from liquid storage cavity 20 extends towards back liquid port 24 and is equipped with liquid outlet hole 26. Power device 18 is used to provide power to the cleaning fluid in liquid storage cavity 20, and drives the cleaning fluid to enter nozzle assembly 16 and spray from liquid outlet hole 26. In the use process, the user can hold ear cleaning device 10 in hand, and then drives the cleaning fluid to spray from liquid outlet hole 26 of nozzle assembly 16 into the ear canal by power device 18 to clean the ear canal, and the sewage flowing out of the ear canal flows into sewage chamber 22 through back liquid port 24, preventing the sewage from flowing to the user or clothes, and after use, the sewage can be directly poured out from sewage chamber 22. Since liquid storage cavity 20 and sewage chamber 22 are arranged along the up-down direction, it is beneficial to reduce the circumferential dimension of ear cleaning device 10, so that ear cleaning device 10 is relatively thin, preventing the problem that ear cleaning device 10 is too thick to affect the user's holding, and facilitating the user to hold ear cleaning device 10 in hand for use.

[0040] Optionally, the ear cleaning device 10 is generally cylindrical, and the up-down direction is the axial direction of the ear cleaning device 10.

[0041] Nozzle assembly 16 includes a vertical part 28 and an inclined part 30 that are in communication with each other. The vertical part 28 extends in the vertical direction and is in communication with the liquid storage cavity 20. The inclined part 30 extends obliquely relative to the vertical part 28 towards the back liquid port 24, so that the vertical part 28 and the inclined part 30 are arranged at an angle. The liquid outlet hole 26 is arranged on the vertical part 28, or the liquid outlet hole 26 is not arranged on the vertical part 28 but is in communication with the vertical part 28. In the use process of the ear cleaning device 10, the liquid outlet hole 26 needs to be aligned with the ear canal to enable the cleaning fluid sprayed from the liquid outlet hole 26 to better enter the ear canal. By arranging the inclined part 30 obliquely relative to the vertical direction, the ear cleaning device 10 can be used in a state of relatively small inclination relative to the vertical direction in the use process, which facilitates the user to use and reduces the risk of sewage flowing out of the sewage chamber 22 due to excessive inclination of the ear cleaning device 10.

[0042] Optionally, the included angle α between the upright portion 28 and the inclined portion 30 is between 90° and 150°, i.e. 90°≤α≤150°, so as to achieve the effect that the ear cleaner 10 can align the outlet hole 26 with the ear canal in a vertical state or a state with a small inclination angle relative to the vertical direction, facilitate the user to use, and prevent sewage from flowing out of the sewage cavity 22 during use. In an embodiment, α is equal to or close to 120°.

[0043] The nozzle assembly 16 comprises a liquid delivery pipe 32 and a nozzle 34, one end of the liquid delivery pipe 32 is in communication with the liquid storage cavity 20, the nozzle 34 is arranged at the other end of the liquid delivery pipe 32, the outlet hole 26 is arranged at the nozzle 34 and in communication with the liquid delivery pipe 32, and the cleaning liquid in the liquid storage cavity 20 can enter the liquid delivery pipe 32 under the drive of the power device 18 and be sprayed out of the outlet hole 26 of the nozzle 34.

[0044] The diameter of the outlet hole 26 is between 1mm and 7mm, the diameter of the outlet hole 26 is inversely proportional to the pressure when the cleaning liquid is sprayed out of the outlet hole 26, the smaller the diameter, the greater the pressure when sprayed, and the larger the diameter, the smaller the pressure when sprayed, controlling the diameter of the outlet hole 26 to be between 1mm and 7mm can avoid that the diameter is too large, resulting in that the pressure when the cleaning liquid is sprayed is too small to affect the cleaning effect on the ear canal, and also avoid that the diameter is too small, resulting in that the pressure when the cleaning liquid is sprayed is too large to stimulate the internal tissues of the ear canal and affect the user experience.

[0045] It should be noted that when the outlet hole 26 is a standard circular hole, the diameter of the outlet hole 26 is the diameter of the outlet hole 26, and when the outlet hole 26 is a non-standard circular hole, the diameter of the outlet hole 26 refers to the average value of the maximum diameter and the minimum diameter of the outlet hole 26.

[0046] The number of outlet holes 26 can be one or multiple, in the embodiment, the number of outlet holes 26 is three, the three outlet holes 26 are arranged at intervals along the circumference of the nozzle 34, so as to increase the water flow, and the diameters of the three outlet holes 26 are all between 1mm and 7mm, so as to achieve the effect of balancing the water flow and water pressure.

[0047] The liquid delivery pipe 32 comprises an upright portion 28 and an inclined portion 30, one end of the upright portion 28 is in communication with the liquid storage cavity 20, the inclined portion 30 is in communication with the other end of the upright portion 28, the nozzle 34 is arranged at the end of the inclined portion 30 away from the upright portion 28, and the outlet hole 26 is arranged at the end of the nozzle 34 away from the inclined portion 30.

[0048] Optionally, the nozzle 34 extends along the extension direction of the inclined portion 30 and extends to the outside of the liquid return port 24, so as to extend the nozzle 34 into the ear canal during use, and the cleaning liquid sprayed out of the outlet hole 26 will automatically enter the ear canal, without the need to deliberately align the outlet hole 26 on the nozzle 34 with the ear canal during use, thereby facilitating the user to use.

[0049] In an embodiment, the liquid return member 14 comprises a main body portion 36 and a fitting portion 38 arranged at the top end of the main body portion 36, i.e. the end away from the liquid storage cavity 20, for fitting contact with the skin. The fitting portion 38 is annular and encloses the main body portion 36 to form the sewage cavity 22, and the liquid return opening 24 is located at the end of the fitting portion 38 away from the main body portion 36. The inner diameter of the end of the fitting portion 38 away from the main body portion 36 is greater than the inner diameter of the end of the main body portion 36 close to the fitting portion 38, so as to form a liquid return opening 24 with a larger aperture, so that the ear cleaner 10 can cover the ear with the fitting portion 38 during use, facilitating the flow of sewage from the ear canal into the sewage cavity 22, and also blocking the splashing of liquid droplets when the cleaning liquid is sprayed from the liquid outlet hole 26 to contact the skin.

[0050] The fitting portion 38 is preferably made of a flexible material to reduce the discomfort when the fitting portion 38 is fitted to the skin. The hardness of the main body portion 36 is greater than that of the fitting portion 38, so that the deformation of the main body portion 36 is more difficult than that of the fitting portion 38, reducing the risk of sewage flowing out of the sewage cavity 22 due to deformation of the main body portion 36.

[0051] Optionally, the fitting portion 38 extends away from the main body portion 36 in a manner that the inner diameter gradually increases, forming a liquid return opening 24 with a larger aperture, facilitating the covering of the ear with the fitting portion 38 from the outside.

[0052] The height of the side of the fitting portion 38 close to the liquid outlet hole 26 is lower than the height of the side of the fitting portion 38 away from the liquid outlet hole 26, so that the liquid return opening 24 is inclined relative to the vertical direction. When the fitting portion 38 is covered from the outside of the ear, the side of the fitting portion 38 close to the liquid outlet hole 26 is below the ear, and the side of the fitting portion 38 away from the liquid outlet hole 26 is above the ear. By designing the height of the side of the fitting portion 38 close to the liquid outlet hole 26 to be lower than the height of the side of the fitting portion 38 away from the liquid outlet hole 26, a height difference is formed, facilitating the covering of the ear with the fitting portion 38 from the outside during use, and cooperating with the design of the upright portion 28 and the inclined portion 30 of the nozzle assembly 16, so that the ear cleaner 10 can cover the ear with the fitting portion 38 from the outside at a smaller inclination angle relative to the vertical direction.

[0053] Optionally, the top of the nozzle 34 is higher than the top of the fitting portion 38, so that the nozzle 34 can be inserted into the ear canal when the fitting portion 38 is covered from the outside of the ear.

[0054] In an embodiment, the liquid return member 14 is located above the liquid storage member 12, and the liquid return member 14 and the liquid storage member 12 are connected together by a connecting housing 40, and the power device 18 is installed in the connecting housing 40, and the liquid storage cavity 20 is in communication with the nozzle assembly 16 through the power device 18.

[0055] Optionally, the liquid storage member 12 is provided with a liquid inlet pipe 42, one end of the liquid inlet pipe 42 is communicated with the nozzle assembly 16 through the power device 18, and the other end of the liquid inlet pipe 42 is located in the liquid storage cavity 20 and extends towards the bottom wall of the liquid storage cavity 20, and the liquid inlet pipe 42 is spaced apart from the bottom wall of the liquid storage cavity 20 by a certain distance, so that as much cleaning liquid as possible in the liquid storage cavity 20 flows to the nozzle assembly 16 through the power device 18.

[0056] The way of injecting cleaning liquid into the liquid storage cavity 20 is not limited, which can be injecting cleaning liquid into the liquid storage cavity 20 through a liquid injection port provided on the liquid storage member 12 and communicated with the liquid storage cavity 20, or the liquid storage member 12 can be detached for liquid injection. In the embodiment, the liquid storage member 12 is detachably connected with the connecting shell 40, and when injecting liquid, the liquid storage member 12 can be first detached from the connecting shell 40, and then connected with the connecting shell 40 after the injection of cleaning liquid is completed.

[0057] The power device 18 can be an electric power device that converts electric energy into mechanical energy and then converts the mechanical energy into kinetic energy of the cleaning liquid, or a manual power device that converts human power into mechanical energy and then converts the mechanical energy into kinetic energy of the cleaning liquid.

[0058] In the embodiments shown in Figure 6 , Figure 7 and Figure 8 , the power device 18 includes an electric water pump, the electric water pump is installed on the connecting shell 40, the electric water pump includes a pump body 44 and a motor 46, the pump body 44 is internally provided with an impeller, the motor 46 is connected with the impeller to drive the impeller to rotate, an inlet 48 of the pump body 44 is communicated with the liquid storage cavity 20, and an outlet 50 of the pump body 44 is communicated with the nozzle assembly 16. Optionally, the inlet 48 of the pump body 44 is communicated with the liquid storage cavity 20 through the liquid inlet pipe 42, and the outlet 50 of the pump body 44 is communicated with the nozzle assembly 16 through a liquid outlet pipe 52. The motor 46 drives the impeller to rotate when working, and the impeller rotation provides power for the cleaning liquid, so that the cleaning liquid in the liquid storage cavity 20 flows into the pump body 44 through the inlet 48 of the pump body 44, and is discharged from the outlet 50 of the pump body 44 under the drive of the impeller and flows to the nozzle assembly 16, and finally is discharged from the liquid outlet hole 26 of the nozzle 34. The electric water pump can drive the cleaning liquid to be sprayed from the liquid outlet hole 26 through the motor 46, without the need for the user to manually drive the cleaning liquid to flow, which is convenient for the user to use, and also more convenient for controlling the flow of the cleaning liquid and the pressure when being sprayed.

[0059] In an optional example, the power unit 18 also includes a battery 54 and a control button 56. The battery 54 is located inside the connecting housing 40, and the control button 56 is exposed outside the connecting housing 40 for users to press and operate, thereby controlling the start and stop of the motor 46 and its power, etc. The battery 54 is electrically connected to the electric water pump, thereby providing power for the motor 46 to work, so that the ear cleaner 10 can be freed from the constraints of an external power source, expanding the applicable scenarios of the ear cleaner 10 and making it more convenient for users to use.

[0060] In this embodiment, one end of the return liquid component 14 extends toward the liquid storage component 12 into the interior of the connecting housing 40. The portion of the return liquid component 14 located inside the connecting housing 40 forms an installation space 58 between itself and the connecting housing 40. The electric water pump is installed within the installation space 58. By extending a portion of the return liquid component 14 into the connecting housing 40, the volume of the sewage chamber 22 is increased to accommodate more sewage. Simultaneously, the installation space 58 formed between the return liquid component 14 and the connecting housing 40, and the installation of the electric water pump within the installation space 58, enhances the compactness of the overall structure of the earwasher 10, reducing its overall size and making it convenient to use and carry.

[0061] Optionally, the connecting housing 40 is a hollow cylinder, and the portion of the return liquid component 14 located inside the connecting housing 40 is semi-cylindrical. After the semi-cylindrical portion of the return liquid component 14 is inserted into the connecting housing 40, a semi-cylindrical installation space 58 is formed between the return liquid component 14 and the connecting housing 40. An installation bracket 60 is provided in the installation space 58, and the electric water pump and battery 54 are installed on the installation bracket 60.

[0062] In this embodiment, a temperature sensor (not shown) is installed on the liquid storage component 12. The temperature sensor is used to detect the temperature of the cleaning fluid in the liquid storage chamber 20. When using the ear cleaner 10, the user can know the temperature of the cleaning fluid in the liquid storage chamber 20, so as to avoid the cleaning fluid being too hot or too cold and causing irritation to the ear canal, thus affecting the user experience.

[0063] Optionally, the liquid storage component 12 is provided with an installation tube 62, one end of which extends into the liquid storage chamber 20. The temperature sensor is installed on the installation tube 62 so that the temperature sensor can directly contact the cleaning fluid in the liquid storage chamber 20, ensuring the accuracy of the detection results.

[0064] There is no limitation on the specific way the temperature sensor feeds back the detected temperature to the user. For example, it can feed back the detection result to the user through voice, through light, or by displaying the detected result on the screen.

[0065] exist Figure 1 , Figure 3 as well as Figure 5In the illustrated embodiment, the power unit 18 includes a manual water pump, which is a manual positive displacement water pump. It achieves fluid intake and discharge by manually changing the volume of the chamber. Compared with electric water pumps, manual water pumps are less expensive and can be used without the constraints of electricity, making them suitable for a wide range of applications. They also avoid the problem of damage to the power unit 18 or even safety hazards caused by leakage.

[0066] In this embodiment, the return fluid component 14 and the storage fluid component 12 are respectively located at both ends of the connecting housing 40, and the manual water pump is installed in the connecting housing 40. The manual water pump includes a valve seat 64 and a resilient button 66. The valve seat 64 is located inside the connecting housing 40, and the resilient button 66 is movably installed in the connecting housing 40 and protrudes out of the housing for user operation by pressing. The valve seat 64 has an inner cavity 68 and a valve seat inlet 70 and a valve seat outlet 72 that communicate with the inner cavity 68 respectively. The valve seat inlet 70 communicates with the storage fluid chamber 20, and the valve seat outlet 72 communicates with the nozzle assembly 16. The resilient button 66 is movably engaged with the valve seat 64 and extends into the inner cavity 68.

[0067] The elastic button 66 has a pressed state and a released state. In the pressed state, the elastic button 66 is subjected to external pressure, such as the pressure applied by the user, and moves towards the interior of the inner cavity 68, generating an elastic restoring force. At this time, the volume of the inner cavity 68 decreases, the pressure increases, and the cleaning fluid in the inner cavity 68 moves towards the nozzle assembly 16 and is sprayed out from the outlet hole 26. In the released state, the pressure on the elastic button 66 disappears, and the elastic button 66 moves towards exiting the inner cavity 68 under its own elastic force. At this time, the volume of the inner cavity 68 increases, the pressure decreases, and the cleaning fluid in the reservoir 20 moves into the inner cavity 68. The elastic button 66 has an elastic reset function. The user only needs to repeatedly press and release the elastic button 66 to draw the cleaning fluid from the reservoir 20 into the inner cavity 68 and to spray the cleaning fluid in the inner cavity 68 out through the outlet hole 26. The operation is simple and convenient for users.

[0068] Optionally, the elastic button 66 includes a button body 74, a piston 76, and a spring 78. The piston 76 is movably engaged with the valve seat 64 and extends into the inner cavity 68. The piston 76 and the valve seat 64 are in a sealing engagement. One end of the button body 74 is connected to the piston 76, and the other end protrudes outside the connecting housing 40. The spring 78 is located inside the inner cavity 68, and both ends of the spring 78 abut against the piston 76 and the inner wall of the inner cavity 68, respectively. When the user presses the button body 74, the button body 74 pushes the piston 76 toward the inner cavity 68 and compresses the spring 78, causing the spring 78 to deform and generate elastic force. After the button body 74 is released, the spring 78 returns to its original state under its own elastic force and pushes the piston 76 and the button body 74 toward the direction of exiting the inner cavity 68.

[0069] In this embodiment, the manual water pump also includes an inlet valve ball 80 and an outlet valve ball 82. The valve seat inlet 70 is connected to the liquid storage chamber 20 through the liquid inlet channel 84, and the valve seat outlet 72 is connected to the nozzle assembly 16 through the liquid outlet channel 86. The inlet valve ball 80 is located in the liquid inlet channel 84, and the outlet valve ball 82 is located in the liquid outlet channel 86. When the volume of the inner cavity 68 changes, the inlet valve ball 80 can move within the liquid inlet channel 84, and the outlet valve ball 82 can move within the liquid outlet channel 86 to open or close the corresponding channel.

[0070] When pressed, the elastic button 66 moves inward toward the inner cavity 68, increasing the pressure inside the inner cavity 68. This drives the inlet valve ball 80 and the outlet valve ball 82 to move away from the inner cavity 68, opening the outlet channel 86 and closing the inlet channel 84. At this time, the cleaning fluid in the inner cavity 68 enters the nozzle assembly through the outlet channel 86 and is sprayed out from the outlet hole 26. When released, the elastic button 66 moves outward from the inner cavity 68, decreasing the pressure inside the inner cavity 68. This drives the inlet valve ball 80 and the outlet valve ball 82 to move inward toward the inner cavity 68, closing the outlet channel 86 and opening the inlet channel 84. At this time, the cleaning fluid in the storage chamber 20 enters the inner cavity 68 through the inlet channel 84.

[0071] In an optional example, the valve seat 64 is provided with an inlet pipe 88 and an outlet pipe 90 on opposite sides, respectively. The inlet pipe 88 is connected to the valve seat inlet 70, and the outlet pipe 90 is connected to the valve seat outlet 72. The connecting housing 40 is provided with a hollow connecting post 92. The inlet pipe 88 is connected to the liquid storage chamber 20 through the connecting post 92. The liquid inlet channel 84 is located inside the connecting post 92 and the inlet pipe 88. The connecting post 92 is provided with a protrusion 94, and a connecting hole 96 is formed inside the protrusion 94. The inlet valve ball 80 is located inside the connecting post 92 and between the connecting hole 96 and the valve seat inlet 70. The diameter of the inlet valve ball 80 is larger than the diameter of the connecting hole 96 and smaller than the maximum inner diameter of the liquid inlet channel 84. The water outlet pipe 90 is connected to the nozzle assembly 16 via the connecting pipe 98. The liquid outlet channel 86 is located inside the water outlet pipe 90 and the connecting pipe 98. The outlet valve ball 82 is located inside the water outlet pipe 90, and the diameter of the outlet valve ball 82 is larger than the orifice diameter of the valve seat outlet 72 and smaller than the maximum inner diameter of the liquid outlet channel 86. When the user presses the elastic button 66, the fluid in the inner cavity 68 pushes the inlet valve ball 80 and the outlet valve ball 82 to move away from the inner cavity 68, respectively. The inlet valve ball 80 presses against the protrusion 94, blocking the connecting hole 96, thereby closing the liquid inlet channel 84 and pushing the outlet valve ball 82 to move away from the valve seat outlet 72, opening the valve seat outlet 72 and opening the liquid outlet channel 86, so that the cleaning fluid in the inner cavity 68 enters the nozzle assembly 16 through the liquid outlet channel 86. When the user releases the elastic button 66, the outlet valve ball 82 and the inlet valve ball 80 move toward the inner cavity 68 respectively. The outlet valve ball 82 blocks the valve seat outlet 72, so that the liquid outlet channel 86 is closed. The inlet valve ball 80 separates from the protrusion 94, opens the connecting hole 96, so that the liquid inlet channel 84 is open, thereby allowing the cleaning fluid in the liquid storage chamber 20 to enter the inner cavity 68.

[0072] In this embodiment, both the inlet channel 84 and the outlet channel 86 are provided with limiting parts 99. The limiting part 99 in the inlet channel 84 is located between the inlet valve ball 80 and the valve seat inlet 70 to limit the inlet valve ball 80 and prevent it from blocking the valve seat inlet 70 when it moves towards the inner cavity 68, thus causing the inlet channel 84 to close. The limiting part 99 in the outlet channel 86 is located on the side of the outlet valve ball 82 away from the valve seat outlet 72 to limit the outlet valve ball 82 and prevent it from blocking the outlet channel 86 when it moves away from the inner cavity 68. Optionally, the limiting part 99 in the inlet channel 84 is located inside the water inlet pipe 88, and the limiting part 99 in the outlet channel 86 is located inside the connecting pipe 98 and extends into the water outlet pipe 90.

[0073] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. An ear washer, characterized in that, include: The liquid storage component is provided with a liquid storage cavity for containing cleaning fluid; The liquid return component is provided with a wastewater chamber, which is spaced above the liquid storage chamber, and the end of the wastewater chamber away from the liquid storage chamber forms a liquid return port; A nozzle assembly is located inside the wastewater chamber and communicates with the liquid storage chamber. The end of the nozzle assembly away from the liquid storage chamber extends toward the return port and is provided with a liquid outlet. A power unit is provided to power the cleaning fluid in the storage chamber, driving the cleaning fluid into the nozzle assembly and out of the outlet hole.

2. The ear washer according to claim 1, characterized in that, The nozzle assembly includes an upright portion and an inclined portion that are interconnected. The upright portion is connected to the liquid storage chamber, and the inclined portion extends inclinedly toward the return port relative to the upright portion. The liquid outlet is connected to or located on the upright portion.

3. The ear washer according to claim 2, characterized in that, The angle between the upright part and the inclined part is between 90° and 150°.

4. The ear washer according to claim 2, characterized in that, The nozzle assembly includes an infusion tube and a nozzle. The infusion tube includes an upright portion and an inclined portion. The nozzle is installed at the end of the inclined portion away from the upright portion and extends outward along the extension direction of the inclined portion to the outside of the return port. The outlet is located at the end of the nozzle away from the inclined portion.

5. The ear washer according to claim 2, characterized in that, The return fluid component includes a main body and a fitting portion disposed at the top of the main body. The main body and the fitting portion enclose the sewage cavity. The return fluid port is located at the end of the fitting portion away from the main body. The inner diameter of the fitting portion at the end away from the main body is larger than the inner diameter of the main body at the end near the fitting portion.

6. The ear washer according to claim 5, characterized in that, The fitting portion extends away from the main body portion in a manner that gradually increases in inner diameter; and / or The height of the fitting portion near the liquid outlet is lower than the height of the fitting portion away from the liquid outlet.

7. The ear washer according to any one of claims 1-6, characterized in that, The power unit includes an electric water pump, which includes a pump body and a motor. The motor is connected to an impeller inside the pump body. The inlet of the pump body is connected to the liquid storage chamber, and the outlet of the pump body is connected to the nozzle assembly.

8. The ear washer according to claim 7, characterized in that, The ear washer further includes a connecting housing, which is connected to both the liquid storage component and the return component. One end of the return component extends towards the liquid storage component into the interior of the connecting housing. The portion of the return component located inside the connecting housing forms an installation space with the connecting housing. The electric water pump is installed within the installation space; and / or... A temperature sensor is installed on the liquid storage device, and the temperature sensor is used to detect the temperature of the cleaning fluid in the liquid storage chamber.

9. The ear washer according to any one of claims 1-6, characterized in that, The power unit also includes a manual water pump, which includes a valve seat and a resilient button. The valve seat has an inner cavity and a valve seat inlet and a valve seat outlet respectively communicating with the inner cavity. The valve seat inlet communicates with the liquid storage cavity, and the valve seat outlet communicates with the nozzle assembly. The elastic button is movably engaged with the valve seat and extends into the inner cavity. The elastic button includes a pressed state and a released state. In the pressed state, the cleaning fluid in the inner cavity moves toward the nozzle assembly and is sprayed out from the liquid outlet. In the released state, the cleaning fluid in the liquid storage chamber moves into the inner cavity.

10. The ear washer according to claim 9, characterized in that, The manual water pump also includes an inlet valve ball and an outlet valve ball. The valve seat inlet is connected to the liquid storage chamber through an inlet channel, and the inlet valve ball is located in the inlet channel. The valve seat outlet is connected to the nozzle assembly through an outlet channel, and the outlet valve ball is located in the outlet channel. In the pressed state, the liquid outlet channel is open and the liquid inlet channel is closed; in the released state, the liquid outlet channel is closed and the liquid inlet channel is open.

11. The ear washer according to claim 10, characterized in that, The liquid inlet channel is provided with a limiting part for limiting the position of the inlet valve ball; and / or, The liquid outlet channel is provided with a limiting part for limiting the position of the outlet valve ball.

12. The ear washer according to any one of claims 1-6, characterized in that, The diameter of the liquid outlet hole is between 1 mm and 7 mm.

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