Solution mixing oral irrigator

Abstract

The utility model discloses a solution mixing oral irrigator which comprises a shell, a machine core and a solution adding mechanism, and the machine core and the solution adding mechanism are both installed in the shell. A solution cabin is arranged in the shell; the machine core is provided with a liquid outlet channel, and the liquid inlet end of the liquid outlet channel is communicated with the solution cabin; the solution adding mechanism comprises a solution adding cabin and a conveying assembly which are mounted in the shell; a solution is arranged in the liquid adding cabin; the conveying assembly is provided with a liquid inlet channel, the liquid inlet end of the liquid inlet channel communicates with the interior of the liquid adding cabin from the upper portion of the liquid adding cabin, and a solution in the liquid adding cabin is output to the solution cabin through the liquid outlet end of the liquid inlet channel. The oral cavity cleaning device has the advantages that the oral cavity of a user is cleaned, certain effects of disinfection, sterilization, bad breath removal and the like are achieved, cleaning is cleaner, the user can operate the oral cavity cleaning device conveniently, solution leakage is reduced, the manufacturing and mounting processes are simple and convenient, the manufacturing cost is saved, and the service life is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of oral irrigator technology, and in particular to a solution-mixing oral irrigator. Background Technology

[0002] With the rapid development of society and economy, oral irrigators are an auxiliary tool for cleaning the oral cavity. They are tools that use pulsed water jets to clean teeth and between teeth. They are mainly available in portable and tabletop models. The cleaning function of oral irrigators is mainly achieved by using a pressure pump to spray a high-speed water jet under a certain pressure. This high-speed water jet has a certain impact force on the teeth, thereby cleaning them.

[0003] Some existing oral irrigators can automatically add mouthwash concentrate to the tap water or purified water filling chamber. However, because the delivery channel between the filling chamber and the mouthwash concentrate storage chamber is located below the mouthwash concentrate storage chamber in some existing models, leakage of the mouthwash concentrate is likely to occur after prolonged use. Furthermore, sealing is costly, installation is cumbersome, and the lifespan of the device is reduced. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a solution mixing oral irrigator.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: A solution-mixing oral irrigator is constructed, comprising: a housing, a core, and a solution-adding mechanism, wherein the core and the solution-adding mechanism are both installed inside the housing; a solution chamber is provided inside the housing; the core is provided with a liquid outlet channel, the inlet end of which is connected to the solution chamber; the solution-adding mechanism includes: a liquid filling chamber and a conveying assembly installed inside the housing; a solution is provided inside the liquid filling chamber;

[0006] The conveying assembly is provided with a liquid inlet channel. The liquid inlet end of the liquid inlet channel is connected from the upper part of the liquid filling chamber to the inside of the liquid filling chamber, and the solution in the liquid filling chamber is output to the solution chamber through the liquid outlet end of the liquid inlet channel.

[0007] Furthermore, the delivery assembly includes a delivery pipe and a drive pump; the delivery pipe is a flexible pipe, one end of which connects to the solution inside the liquid filling chamber from the top of the liquid filling chamber, and the other end of which connects to the solution chamber; the drive pump is installed inside the housing and delivers the solution from one end of the delivery pipe to the other end of the delivery pipe and discharges it into the solution chamber.

[0008] Furthermore, the drive pump includes: a pump wheel, a motor, and a squeezing plate; both the pump wheel and the squeezing plate are installed inside the housing, and the output end of the motor drives the pump wheel to rotate; a portion of the delivery pipe is disposed between the pump wheel and the squeezing plate, and as the pump wheel rotates, it sequentially squeezes a section of the delivery pipe between the pump wheel and the squeezing plate to generate negative pressure in the delivery pipe to draw out the solution.

[0009] Furthermore, the pump wheel is provided with an extrusion groove for storing part of the delivery pipe.

[0010] Furthermore, the pump wheel includes: a connecting disc, a drive column, and a drive disk. A plurality of drive columns are circumferentially spaced between the connecting disc and the drive disk. The drive columns cooperate with the extrusion plate to extrude a portion of the conveying pipe. The connecting disc is rotatable within the housing. The drive disk is connected to the output end of the motor.

[0011] Furthermore, the extrusion plate is arranged in an arc shape around the drive column and is located between the drive disk and the connecting disk; a gap is provided between the extrusion plate and the drive column, the gap being smaller than the outer diameter of a portion of the conveying pipe, so that when the drive disk rotates, the drive column extrudes a portion of the conveying pipe.

[0012] Furthermore, guide posts are provided at both ends of the extrusion plate, and the guide posts are inserted into the housing.

[0013] Furthermore, the liquid filling chamber is funnel-shaped, trumpet-shaped, or polyhedral.

[0014] Furthermore, the solution mixing irrigator also includes a nozzle inserted into the mechanism and communicating with the liquid outlet channel, as well as a control module electrically connected to the mechanism and the solution adding mechanism respectively, the control module being mounted on the housing.

[0015] Furthermore, the upper end of the liquid filling chamber is provided with a liquid filling port, and a protective cover is inserted into the liquid filling port. The protective cover is provided with a limiting through hole that allows the delivery pipe to pass through.

[0016] The following are the beneficial effects of implementing this utility model:

[0017] This application connects the liquid inlet end of the inlet channel of the conveying component to the solution in the liquid filling chamber from the top. The outlet end of the inlet channel is connected to the solution chamber. When the conveying component is activated, it draws the solution from the top of the liquid filling chamber into the solution chamber through the inlet channel, mixing the added solution with the tap water or purified water in the solution chamber. Then, the mechanism is activated to discharge the mixed solution from the solution chamber through the outlet channel of the mechanism. This cleans the user's mouth, providing disinfection, sterilization, and removal of bad breath, resulting in a more thorough cleaning. It is easy for users to operate, reduces solution leakage, and is relatively simple and convenient to manufacture and install, saving manufacturing costs and extending the service life. Attached Figure Description

[0018] To more clearly illustrate the technical solution of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0019] In the attached image:

[0020] Figure 1 This is a schematic diagram of the structure of the solution mixing oral irrigator in some embodiments of this utility model;

[0021] Figure 2 This is a cross-sectional view of a solution-mixing oral irrigator in some embodiments of this utility model;

[0022] Figure 3 This is a schematic diagram of the solution addition mechanism in this utility model;

[0023] Figure 4 This is a schematic diagram of the pump wheel in this utility model;

[0024] Figure 5 This is a schematic diagram of the extrusion plate in this utility model;

[0025] Figure 6 This is a schematic diagram of the liquid filling tank in this utility model.

[0026] Explanation of markings in the diagram

[0027] 1. Shell 11. Solution chamber 2. Mechanism 3. Nozzle 4. Solution adding mechanism 41. Filling chamber 41. Filling port 412. Protective cover 413. Limiting through hole 414. Conveying assembly 42. Conveying pipe 421. Drive pump 422. Pump wheel 4221. Motor 4222. Extrusion plate 4223. Extrusion groove 4224. Connecting plate 4225. Drive column 4226. Drive disc 4227. Guide column 4228. Control module 5. Detailed Implementation

[0028] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the orientations or positional relationships indicated by terms such as "front," "rear," "upper," "lower," "left," "right," "longitudinal," "horizontal," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," and "tail" are based on the orientations or positional relationships shown in the accompanying drawings, and are constructed and operated in a specific orientation. They are only for the convenience of describing this technical solution and do not indicate that the device or component referred to must have a specific orientation; therefore, they should not be construed as limitations on this utility model.

[0029] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. When an component is referred to as being "on" or "below" another component, the component can be located "directly" or "indirectly" on the other component, or there may be one or more intermediary components. The terms "first," "second," "third," etc., are only for the convenience of describing this technical solution and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first," "second," "third," etc., may explicitly or implicitly include one or more of that feature. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0030] In the following description, specific details such as particular system structures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of the present invention. However, those skilled in the art will understand that the present invention can be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

[0031] Please see Figures 1 to 2 The solution-mixing oral irrigator in the first embodiment of this utility model includes: a housing 1, a core 2, and a solution adding mechanism 4. Both the core 2 and the solution adding mechanism 4 are installed inside the housing 1. A solution chamber 11 is provided inside the housing 1. The core 2 has a liquid outlet channel, the inlet end of which is connected to the solution chamber 11. The solution adding mechanism 4 includes: a liquid filling chamber 41 and a conveying assembly 42 installed inside the housing 1. The liquid filling chamber 41 contains a solution. The conveying assembly 42 has an inlet channel, the inlet end of which connects from the upper part of the liquid filling chamber 41 to the inside of the liquid filling chamber 41, and outputs the solution in the liquid filling chamber 41 to the solution chamber 11 through the outlet end of the inlet channel.

[0032] The solution in the liquid filling chamber 41 can be concentrated mouthwash, saline, or other disinfectant solutions. By adding it to the solution chamber 11, it can disinfect and sterilize the user and is also easy to carry.

[0033] The inlet end of the inlet channel of the delivery component 42 connects to the solution inside the filling chamber 41 from the upper part, so that there is no gap in the lower part of the filling chamber 41. This can prevent the solution from leaking out of the filling chamber 41 after long-term use, and also eliminates the need for sealing the bottom of the filling chamber 41. This makes installation more convenient, saves manufacturing costs, and makes it easier for users to add concentrated mouthwash to the solution chamber 11 for mixing, thereby improving the cleaning effect, reducing solution waste, and extending its service life.

[0034] This application connects the solution in the filling chamber 41 from the top through the inlet end of the inlet channel of the conveying component 42, and the outlet end of the inlet channel is connected to the solution chamber 11. When the conveying component 42 is activated, it draws the solution from the top of the filling chamber 41 through the inlet channel and into the solution chamber 11, mixing the added solution with the tap water or purified water in the solution chamber 11. Then, the mechanism 2 is activated to discharge the mixed solution from the solution chamber 11 through the outlet channel of the mechanism 2, thus cleaning the user's mouth and achieving certain disinfection, sterilization, and removal of bad breath. It provides a more thorough cleaning, is easy for the user to operate, reduces solution leakage, and is relatively simple and convenient to manufacture and install, saving manufacturing costs and extending the service life.

[0035] Please see Figures 1 to 3In some embodiments, the delivery assembly 42 includes a delivery pipe 421 and a drive pump 422. The delivery pipe 421 is a flexible pipe, with one end connected to the solution inside the liquid filling chamber 41 from the upper part, and the other end connected to the solution chamber 11. The drive pump 422 is installed inside the housing 1 and delivers the solution from one end of the delivery pipe 421 to the other end of the delivery pipe 421, which then discharges the solution into the solution chamber 11.

[0036] Among them, the delivery pipe 421 is the liquid inlet channel of the delivery component 42. The delivery pipe 421 is a flexible pipe, which makes the delivery pipe 421 suitable for more installation methods, reduces the space occupied inside the mechanism 2, and makes the internal structure layout more reasonable, economical and practical.

[0037] This application connects the solution inside the filling chamber 41 to one end of a delivery pipe 421 from the upper part of the filling chamber 41, and the other end of the delivery pipe 421 is connected to the solution chamber 11. A drive pump 422 is installed inside the housing 1, delivering the solution from one end of the delivery pipe 421 to the other end, which then discharges it into the solution chamber 11. The delivery pipe 421 extends from the upper part of the filling chamber 41 into the bottom of the filling chamber 41, allowing for more thorough addition of the solution from the filling chamber 41 to the solution chamber 11 when the drive pump 422 is activated. This reduces solution waste, improves cleaning efficiency, prevents solution leakage, and extends service life.

[0038] Please see Figures 1 to 3 In some embodiments, the drive pump 422 includes a pump wheel 4221, a motor 4222, and a squeezing plate 4223. The pump wheel 4221 and the squeezing plate 4223 are both installed inside the housing 1. The output end of the motor 4222 drives the pump wheel 4221 to rotate. A portion of the delivery pipe 421 is disposed between the pump wheel 4221 and the squeezing plate 4223. As the pump wheel 4221 rotates, it squeezes a section of the delivery pipe 421 between the pump wheel 4221 and the squeezing plate 4223 in sequence, so that a negative pressure is generated in the delivery pipe 421 to draw out the solution.

[0039] This application utilizes a pump wheel 4221 and a pressure plate 4223 both installed inside the housing 1. The output of the motor 4222 drives the pump wheel 4221 to rotate, and a portion of the delivery pipe 421 is squeezed between the pump wheel 4221 and the pressure plate 4223. As the pump wheel 4221 rotates, a negative pressure is generated at one end of the delivery pipe 421 to draw in the solution. When the output of the motor 4222 drives the pump wheel 4221 to rotate, the rotating pump wheel 4221 cooperates with the pressure plate 4223 to squeeze the delivery pipe 421, causing the delivery pipe 421 to deform inward. When the rotating pump wheel 4221 stops squeezing the delivery pipe 421, the delivery pipe 421 returns to its original shape under the action of deformation. During the process of returning to its original shape, a negative pressure is generated inside the delivery pipe 421, which draws the solution inside the liquid filling chamber 41 into the delivery pipe 421 and then out of the delivery pipe 4221. The other end of the tube 1 is discharged into the solution chamber 11, where it mixes with tap water or purified water. The rotating pump wheel 4221 and the squeezing plate 4223 work together to improve the efficiency of solution absorption and make the reaction faster and more sensitive. Furthermore, since the negative pressure is generated by the deformation of the delivery pipe 421 itself, the amount of solution absorbed after each deformation of the delivery pipe 421 is approximately the same, making the proportion of solution added to the solution chamber 11 more precise. This improves cleaning efficiency and further avoids solution waste.

[0040] Please see Figures 1 to 4 In some embodiments, the pump wheel 4221 is provided with a compression groove 4224 for storing part of the delivery pipe 421.

[0041] This application provides a squeezing groove 4224 on the pump wheel 4221 to store part of the delivery pipe 421. The side wall of the squeezing groove 4224 can restrict the delivery pipe 421 on the pump wheel 4221, preventing displacement between the delivery pipe 421 and the pump wheel 4221, making the delivery pipe 421 more stable during operation, improving the efficiency of solution delivery, making the ratio of solution added more accurate, and extending the service life.

[0042] Please see Figures 1 to 4 In some embodiments, the pump wheel 4221 includes a connecting disc 4225, a drive column 4226, and a drive disc 4227. A plurality of drive columns 4226 are circumferentially spaced between the connecting disc 4225 and the drive disc 4227. The drive columns 4226 cooperate with the extrusion plate 4223 to extrude part of the conveying pipe 421. The connecting disc 4225 is rotatable inside the housing 1. The drive disc 4227 is connected to the output end of the motor 4222.

[0043] This application uses multiple drive columns 4226 circumferentially spaced between the connecting plate 4225 and the drive plate 4227. The drive columns 4226 cooperate with the extrusion plate 4223 to extrude part of the conveying pipe 421. The connecting plate 4225 is inserted into the housing 1, and the drive plate 4227 is connected to the output end of the motor 4222. The multiple drive columns 4226 can sequentially cooperate with the extrusion plate 4223 to extrude the conveying pipe 421, causing the conveying pipe 421 to deform intermittently and repeatedly. The drive plate 4227 drives the drive columns 4226 to rotate. The drive column 4226 squeezes the delivery pipe 421. The distance between adjacent drive columns 4226 is the amount of liquid drawn in by the negative pressure generated after each squeezing of the delivery pipe 421. By controlling the number of drive columns 4226 passing through the delivery pipe 421 each time, the amount of liquid drawn in can be precisely controlled, improving the efficiency and accuracy of solution absorption. The connecting plate 4225 and the drive plate 4227 can increase the stability of the pump wheel 4221 when rotating, further improving the accuracy of solution absorption, reducing shaking, lowering noise, and extending service life.

[0044] Please see Figures 1 to 5 In some embodiments, the extrusion plate 4223 is arranged in an arc shape around the drive column 4226 and is located between the drive disk 4227 and the connecting disk 4225;

[0045] A gap is provided between the extrusion plate 4223 and the drive column 4226, which is smaller than the outer diameter of part of the conveying pipe 421, so that when the drive disc 4227 rotates, part of the conveying pipe 421 is extruded by the drive column 4226.

[0046] In this application, the extrusion plate 4223 is arranged in an arc shape around the drive column 4226 and is located between the drive disk 4227 and the connecting disk 4225. There is a gap between the extrusion plate 4223 and the drive column 4226, which is smaller than the outer diameter of part of the delivery pipe 421. When the drive disk 4227 rotates, the drive column 4226 extrudes part of the delivery pipe 421. The arc-shaped extrusion plate 4223 can increase the contact area between itself and the delivery pipe 421, making the solution absorption more accurate. The extrusion plate 4223, which is arc-shaped and surrounds the drive column 4226, can also reduce the space occupied inside the housing 1, making the internal layout of the housing 1 more reasonable.

[0047] The extrusion plate 4223 and the drive column 4226 have a gap, which is smaller than the outer diameter of part of the delivery pipe 421. This makes it easier for the drive column 4226 to extrude the delivery pipe 421 and improve the efficiency of solution absorption.

[0048] Please see Figures 1 to 5 In some embodiments, guide posts 4228 are provided at both ends of the extrusion plate 4223, and the guide posts 4228 are inserted into the housing 1.

[0049] This application features guide posts 4228 at both ends of the extrusion plate 4223. The guide posts 4228 are inserted into the housing 1, facilitating installation and maintenance, and improving production efficiency. The guide posts 4228 at both ends of the extrusion plate 4223 also provide stability to the conveying pipe 421, preventing displacement between the pipe and the extrusion plate 4223. When the driving pump 422 and the extrusion plate 4223 extrude and deform the conveying pipe 421, the guide posts 4228 reduce friction, protecting the pipe from leakage and extending its service life.

[0050] Please see Figure 1 and Figure 4 In some embodiments, the filling chamber 41 is funnel-shaped, flared, or polyhedral. A funnel-shaped filling chamber 41 facilitates the addition of solution, improving the efficiency of solution addition and cleaning. A flared-mouth-shaped filling chamber 41 reduces the entry of impurities, making its interior cleaner and more hygienic. A polyhedral-shaped filling chamber 41 is easier to install, suitable for more installation environments, saves space inside the housing 1, and offers greater versatility.

[0051] Please see Figures 1 to 3 In some embodiments, the solution mixing irrigator also includes a nozzle 3 inserted into the core 2 and communicating with the liquid outlet channel, and a control module 5 electrically connected to the core 2 and the solution adding mechanism 4 respectively, the control module 5 being mounted on the housing 1.

[0052] The control module 5 can set the start time of the motor 4222 of the solution adding mechanism 4 each time. The started motor 4222 will drive the pump wheel 4221 to rotate. The rotating pump wheel 4221 cooperates with the extrusion plate 4223 to add solution to the solution chamber 11 by using the negative pressure generated by the delivery pipe 421. The start time set by the control module 5 can control the amount of solution added to the solution chamber 11 each time, so that the solution adding mechanism 4 can add solution to the solution chamber 11 quantitatively each time, improve the accuracy of the solution mixing ratio, clean more thoroughly, and reduce solution waste.

[0053] Users can also change the start time of motor 4222 each time through control module 5, thereby changing the amount of solution injected each time, so that users can adjust it according to the actual situation, thus making it suitable for more usage scenarios and more diversified.

[0054] This application utilizes a nozzle 3 inserted into the core 2 and a control module 5 electrically connected to both the core 2 and the solution adding mechanism 4. The nozzle 3 allows the core 2 to spray a denser and more impactful water stream, thereby improving the cleaning effect and expanding the water flow range for easier operation. The control module 5 can control the motors 4222 of both the core 2 and the solution adding mechanism 4 to start and stop. This allows the solution in the filling chamber 41 to be added to the solution chamber 11 before being sprayed out from the nozzle 3 through the core 2. Alternatively, the core 2 and the solution adding mechanism 4 can be activated simultaneously, allowing the mixed solution to be sprayed from the nozzle 3 while the solution is added from the filling chamber 41 to the solution chamber 11. This adaptability makes the application suitable for various scenarios and more versatile.

[0055] Please see Figure 1 , Figure 2 and Figure 6 In some embodiments, the upper end of the liquid filling chamber 41 is provided with a liquid filling port 412, and a protective cover 413 is inserted into the liquid filling port 412. The protective cover 413 is provided with a limiting through hole 414 that allows the delivery pipe 421 to pass through.

[0056] This application provides a filling port 412 at the upper end of the filling chamber 41, with a protective cover 413 inserted into the filling port 412. The protective cover 413 has a limiting through hole 414 that allows the delivery tube 421 to pass through. The filling port 412 facilitates the addition of solution to the filling chamber 41 by the user, while the protective cover 413 prevents impurities from entering the filling chamber 41, reducing solution waste. It also prevents solution leakage during carrying and use, thereby improving the user experience. The limiting through hole 414 on the protective cover 413 securely restricts one end of the delivery tube 421 inside the filling chamber 41, ensuring that one end of the delivery tube 421 is always located at the bottom of the filling chamber 41, improving the accuracy of solution addition and avoiding solution waste.

[0057] It is understood that the above embodiments only illustrate preferred embodiments of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present utility model patent. It should be noted that for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present utility model, all of which fall within the protection scope of the present utility model. Therefore, all equivalent transformations and modifications made within the scope of the claims of the present utility model should fall within the coverage of the claims of the present utility model.

Claims

1. A solution-mixing oral irrigator, characterized in that, include: The housing (1), the mechanism (2), and the solution adding mechanism (4) are all installed inside the housing (1); The shell (1) is provided with a solution chamber (11); The mechanism (2) is provided with a liquid outlet channel, and the liquid inlet end of the liquid outlet channel is connected to the solution chamber (11); The solution addition mechanism (4) includes: a liquid addition chamber (41) and a delivery assembly (42) installed inside the housing (1); The liquid filling chamber (41) is filled with a solution; The delivery assembly (42) is provided with a liquid inlet channel. The liquid inlet end of the liquid inlet channel is connected from the upper part of the liquid filling chamber (41) to the liquid filling chamber (41), and the solution in the liquid filling chamber (41) is output to the solution chamber (11) through the liquid outlet end of the liquid inlet channel.

2. The solution-mixing oral irrigator according to claim 1, characterized in that, The conveying assembly (42) includes: a conveying pipe (421) and a drive pump (422); The delivery pipe (421) is a flexible pipe. One end of the delivery pipe (421) is connected to the solution in the liquid filling tank (41) from the upper part of the liquid filling tank (41), and the other end of the delivery pipe (421) is connected to the solution tank (11). The drive pump (422) is installed inside the housing (1) to transport the solution from one end of the delivery pipe (421) to the other end of the delivery pipe (421) and discharge it into the solution chamber (11).

3. The solution-mixing oral irrigator according to claim 2, characterized in that, The drive pump (422) includes: a pump wheel (4221), a motor (4222), and a pressing plate (4223); The pump wheel (4221) and the extrusion plate (4223) are both installed inside the housing (1), and the output end of the motor (4222) drives the pump wheel (4221) to rotate; A portion of the delivery pipe (421) is disposed between the pump wheel (4221) and the extrusion plate (4223). As the pump wheel (4221) rotates, it sequentially extrudes a section of the delivery pipe (421) between the pump wheel (4221) and the extrusion plate (4223) to generate negative pressure in the delivery pipe (421) to draw out the solution.

4. The solution-mixing oral irrigator according to claim 3, characterized in that, The pump wheel (4221) is provided with an extrusion groove (4224) for storing part of the delivery pipe (421).

5. The solution-mixing oral irrigator according to claim 3, characterized in that, The pump wheel (4221) includes a connecting disc (4225), a drive column (4226), and a drive disc (4227). A plurality of drive columns (4226) are circumferentially spaced between the connecting disc (4225) and the drive disc (4227). The drive column (4226) cooperates with the extrusion plate (4223) to extrude part of the conveying pipe (421). The connecting disc (4225) is rotatable within the housing (1). The drive disc (4227) is connected to the output end of the motor (4222).

6. The solution-mixing oral irrigator according to claim 5, characterized in that, The extrusion plate (4223) is arranged in an arc shape around the drive column (4226) and is located between the drive disk (4227) and the connecting disk (4225); A gap is provided between the extrusion plate (4223) and the drive column (4226), the gap being smaller than the outer diameter of a portion of the conveying pipe (421), so that when the drive disc (4227) rotates, the drive column (4226) extrudes a portion of the conveying pipe (421).

7. The solution-mixing oral irrigator according to claim 3, characterized in that, The extrusion plate (4223) is provided with guide posts (4228) at both ends, and the guide posts (4228) are inserted into the housing (1).

8. The solution-mixing oral irrigator according to claim 3, characterized in that, The liquid filling chamber (41) is funnel-shaped, trumpet-shaped, or polyhedral.

9. The solution-mixing oral irrigator according to claim 1, characterized in that, The solution mixing irrigator also includes a nozzle (3) inserted into the core (2) and communicating with the liquid outlet channel, and a control module (5) electrically connected to the core (2) and the solution adding mechanism (4) respectively. The control module (5) is installed on the housing (1).

10. The solution-mixing oral irrigator according to claim 1, characterized in that, The liquid filling chamber (41) has a liquid filling port (412) at the upper end, and a protective cover (413) is inserted into the liquid filling port (412). The protective cover (413) is provided with a limiting through hole (414) that allows the delivery pipe (421) to pass through.

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