Mixed liquid outlet device and mouthwash water flusher

Abstract

The utility model discloses a mixed liquid outlet device and a mouth wash oral irrigator, relates to the technical field of tooth cleaning appliances, and aims to solve the problems that a mixed liquid outlet device in the prior art is large in size and unstable in operation. The liquid mixing and discharging device comprises a mixing pump, a first conveying pipe, a second conveying pipe, a raw liquid pump, a driving unit, a first transmission assembly and a speed reduction transmission assembly. Wherein the mixing pump is provided with a liquid outlet, and the first conveying pipe and the second conveying pipe are both communicated with the mixing pump; the stock solution pump is connected with the second conveying pipe, and the stock solution pump is used for pumping materials in the second conveying pipe towards the mixing pump; the first transmission assembly and the speed reduction transmission assembly are both connected with the driving unit and arranged on the same side of the driving unit. The first transmission assembly is connected with the mixing pump, the reduction transmission assembly is connected with the stock solution pump, and the transmission ratio of the reduction transmission assembly is larger than that of the first transmission assembly. Therefore, the device has the advantages of compact structure, reasonable layout, stable operation and the like.

Description

Technical Field

[0001] The present application relates to the technical field of tooth cleaning appliances, and in particular to a mixed liquid outlet device and a mouthwash water irrigator. Background Art

[0002] A water flosser, also known as a water flosser, is an auxiliary tool for cleaning the oral cavity. A mouthwash water flosser can extract and mix pure water and mouthwash through a water pump, and then pump the mixture out through a nozzle. The water pump for extracting pure water and the water pump for extracting mouthwash are usually each controlled by an independent drive unit. Considering the overall weight requirements, battery capacity settings, and mechanical quality consistency requirements of the mouthwash water flosser, the use of a single drive motor to simultaneously support the simultaneous extraction and mixing of two materials is an important research direction in the structural design of the mouthwash water flosser.

[0003] In the related art, some mouthwash irrigators use a dual-shaft drive unit to simultaneously support the operation of two water pumps. However, the two water pumps and corresponding transmission components are located on either side of the drive unit, resulting in an irrational structural layout and a large overall size. Furthermore, the dual-shaft drive unit outputs a large load when simultaneously supporting the transmission of the transmission components on both sides and the operation of the water pumps, making the operation of the mouthwash irrigator unstable. Furthermore, in the related art, most mouthwash irrigators can only support the pumping and mixing of equal amounts of mouthwash and purified water, and cannot support the mixing of concentrated stock solution and purified water in a micro-concentration ratio. Utility Model Content

[0004] The purpose of the present application is to provide a mixed liquid outlet device and a mouthwash water irrigator, which can alleviate the problems of large size, unreasonable structural layout and unstable operation of the mixed liquid outlet device in the prior art.

[0005] The embodiment of the present application is implemented as follows:

[0006] In a first aspect, the present application provides a mixed liquid discharge device, comprising a mixing pump, a first delivery pipe, a second delivery pipe, a raw liquid pump, a drive unit, a first transmission assembly, and a reduction transmission assembly. The mixing pump has a liquid outlet, and the first and second delivery pipes are both connected to the mixing pump; the raw liquid pump is connected to the second delivery pipe and is used to pump the material in the second delivery pipe toward the mixing pump; the first transmission assembly and the reduction transmission assembly are both connected to the drive unit and are arranged on the same side of the drive unit; the first transmission assembly is connected to the mixing pump, and the reduction transmission assembly is connected to the raw liquid pump, and the transmission ratio of the reduction transmission assembly is greater than the transmission ratio of the first transmission assembly.

[0007] In the above technical solution, the first transmission assembly and the reduction transmission assembly are arranged on the same side of the drive unit, so that the spatial layout of the mixed liquid discharge device is more reasonable and the overall structure is more compact, which is conducive to the miniaturization of the overall structure of the mixed liquid discharge device and makes the assembly process more convenient; the first transmission assembly and the reduction transmission assembly are both connected to the same drive unit, which can reduce the control error of the first delivery pipe and the second delivery pipe in quantitatively and proportionally delivering materials to the mixing pump, reduce the power source control deviation, and make the actual mixed concentration of the mixed liquid more accurate; the two transmission assemblies are connected to the same drive unit and arranged on the same side of the drive unit, which can reduce the output load of the drive unit and improve the stability of the operation of the mixed liquid discharge device; on this basis, through the setting of the reduction transmission assembly, that is, the transmission ratio of the reduction transmission assembly is greater than the transmission ratio of the first transmission assembly, the mixed liquid discharge device can achieve non-equal proportion mixing of the two materials, thereby realizing the function of the mixed liquid discharge device for diluting high-concentration solutions and quantitative proportion mixing, making the mixed liquid discharge device more practical and applicable.

[0008] In some embodiments, the reduction transmission assembly includes an input element and an output element, which are coupled via gears to achieve reduction transmission. The input element is connected to the drive unit, and the output element is connected to the raw liquid pump. In the above technical solution, the gears between the input and output elements achieve both power transmission and reduction transmission, which can improve transmission efficiency, transmission stability, transmission accuracy, and reduction control precision, thereby increasing the accuracy of the mixed liquid output ratio.

[0009] In some embodiments, the reduction transmission assembly further includes at least one planetary gear, rotatably disposed between the input element and the output element. In the above technical solution, the use of a planetary gear structure for reduction transmission between the input and output elements facilitates structural simplicity and compactness, while also improving transmission efficiency, precision, and stability, resulting in quieter and more stable operation of the mixing device and the mouthwash irrigator.

[0010] In some embodiments, the planetary gear includes a coaxially connected primary and secondary tooth mating portions, wherein the diameter of the primary tooth mating portion is larger than that of the secondary tooth mating portion. The reduction transmission assembly further includes a primary ring gear coaxially connected to the input element and rotating synchronously, the primary ring gear meshing with the primary tooth mating portion. The output element is a secondary ring gear meshing with the secondary tooth mating portion. In the above technical solution, the planetary gears having multiple tooth mating portions and different diameters enable the reduction transmission assembly to achieve multi-stage reduction, thereby realizing a larger reduction ratio, thereby enabling the mixed liquid discharge device to support the mixing function of two materials with larger differences in mixing amounts and more extreme ratios. The coaxially connected primary and secondary tooth mating portions make the overall structure of the reduction transmission assembly more compact and simple.

[0011] In some embodiments, the output element is a planetary gear, rotatably mounted on one side of the input element; when the input element rotates, the planetary gear can rotate around the input element. In the above technical solution, the planetary gear structure is used to reduce the transmission speed between the input and output elements, which facilitates structural simplicity and compactness, and also improves transmission efficiency, precision, and stability, resulting in quieter and more stable operation of the mixing device and the mouthwash irrigator.

[0012] In some embodiments, the reduction transmission assembly further includes a bevel gear and an intermediate gear, which are coaxially fixedly connected to the intermediate gear. The output element is an output toothed disc, the bevel gear meshes with the input element, and the intermediate gear meshes with the output toothed disc. In the above technical solution, the arrangement of the bevel gear and the intermediate gear enables the reduction transmission assembly to achieve a change in transmission direction, more efficiently utilizes the lateral space of the reduction transmission assembly, and achieves a more reasonable and compact structural layout. Furthermore, by adjusting the diameters of the bevel gear and the intermediate gear, the reduction transmission assembly can also achieve multi-stage reduction, thereby supporting a larger reduction ratio and more extreme material mixing.

[0013] In some embodiments, the input element is a transmission worm, and the reduction transmission assembly further includes a transmission worm wheel and an intermediate gear, and the transmission worm wheel and the intermediate gear are coaxially fixedly connected; the output element is an output sprocket; the transmission worm is meshed with the transmission worm wheel, and the intermediate gear is meshed with the output sprocket. In the above technical solution, the combination of the worm wheel and the worm enables the reduction transmission assembly to achieve a larger reduction ratio and have a self-locking function; the setting of the transmission worm wheel and the intermediate gear enables the reduction transmission assembly to achieve a change in transmission direction, the lateral space of the reduction transmission assembly can be more efficiently utilized, and the overall structural layout is more reasonable and compact; further, by setting the diameter of the transmission worm wheel and the intermediate gear, the reduction transmission assembly can also achieve multi-stage reduction, thereby supporting a larger reduction ratio and a material mixing function with more extreme proportions.

[0014] In some embodiments, the reduction transmission assembly includes an input element and an output element, which are connected by a transmission belt or a transmission chain to reduce the transmission speed. The input element is connected to the drive unit, and the output element is connected to the raw liquid pump. In the above technical solution, the transmission belt or transmission chain is used to achieve the reduction transmission between the input and output elements, which provides greater flexibility in spatial layout and overload protection. In addition, the reduction transmission assembly using the transmission belt or transmission chain is easy to install and has low cost. The reduction transmission assembly using the transmission belt has the ability to absorb shock and buffer.

[0015] In some embodiments, the raw liquid pump includes a raw liquid pump housing and a raw liquid pump rotor. The raw liquid pump rotor is rotatably disposed within the raw liquid pump housing, and a portion of a second delivery pipe is accommodated between the raw liquid pump housing and the raw liquid pump rotor. During rotation, the raw liquid pump rotor squeezes the second delivery pipe to pump material toward the mixing pump. In the above technical solution, the raw liquid pump rotor squeezes the second delivery pipe to pump material toward the mixing pump, which can reduce or even eliminate the probability of material contamination. The structure is compact and simple, suitable for pumping a variety of materials, and provides more precise and reliable flow control of the material pumping.

[0016] In some embodiments, the mixing pump includes a mixing chamber and a power push rod, the mixing chamber is connected to the liquid outlet, one end of the power push rod is movably disposed in the mixing chamber, and the other end of the power push rod is connected to the first transmission assembly. In the above technical solution, the mixing pump, which draws and pushes materials by the reciprocating movement of the power push rod, can generate a larger mixed liquid pushing pressure, thereby achieving a higher flow rate output of the mixed material and higher mechanical efficiency; the reciprocating motion of the power push rod also enables the mixing pump to achieve a precise and stable flow output and has a strong self-priming ability. It has a wide range of applications, high reliability, simple structure, and easy maintenance.

[0017] In some embodiments, the mixing pump further comprises a homogenizing member disposed within the mixing chamber, with the liquid outlet and the power push rod located on either side of the homogenizing member. The homogenizing member is provided with at least one through-hole. In the above technical solution, the homogenizing member provided with the through-hole can disrupt the flow of materials entering or about to leave the mixing chamber, thereby ensuring a more uniform and thorough mixing of the two materials.

[0018] In some embodiments, the first transmission assembly includes a coupling gear, a first gear plate, and an eccentric shaft. The coupling gear is coaxially fixedly connected to the drive unit and meshes with the first gear plate. The eccentric shaft is disposed on one side of the first gear plate, and the other end of the power push rod is sleeved on the eccentric shaft. In the above technical solution, the first transmission assembly, through the provision of the eccentric shaft, can convert the rotational motion output by the drive unit into linear reciprocating motion, thereby achieving reciprocating movement of the power push rod, resulting in high transmission efficiency. In addition, the first transmission assembly using the above structure is compact and easy to integrate.

[0019] In some embodiments, the eccentric shaft and the reduction transmission assembly are both located on the same side of the first gear disc, or alternatively, the eccentric shaft and the reduction transmission assembly are located on opposite sides of the first gear disc. In the above technical solution, the reduction transmission assembly and the power push rod can be located on the same side or on different sides of the first gear disc, depending on the available space. This makes the overall structure of the mixed liquid discharge device more compact and reduces the likelihood of the delivery pipe being entangled by the moving element.

[0020] In some embodiments, the mixing and discharging device further includes at least one one-way valve, located at the connection point between the first delivery tube and the mixing pump, and / or located at the connection point between the second delivery tube and the mixing pump. In the above technical solution, the provision of the one-way valve reduces the probability of the mixed material in the mixing chamber flowing back into the delivery tube, thereby improving the accuracy of the control of the mixed liquid ratio of the mouthwash and irrigator.

[0021] In some embodiments, the first and second delivery pipes are connected to the mixing pump via a three-way element, and a first one-way valve is provided at the connection point between the three-way element and the mixing pump. In the above technical solution, the first and second delivery pipes are connected to the same connection hole of the mixing chamber via the three-way element, which can reduce the difficulty of manufacturing the mixing pump and the probability of liquid leakage, and the first one-way valve can also reduce the probability of mixed liquid backflow.

[0022] In some embodiments, a second one-way valve is provided at the connection point between the three-way element and the second delivery pipe. In the above technical solution, considering that the mixing pump can generate a relatively large force to push the mixed liquid, the provision of the second one-way valve can reduce the probability of the mixed liquid breaking through the first one-way valve due to the high pressure and still flowing back into the second delivery pipe, thereby improving the accuracy of the mixed liquid ratio.

[0023] In some embodiments, the mixed liquid outlet device further includes a raw liquid flow regulating valve connected to the second delivery pipe. In the above technical solution, the mixed liquid outlet device can further adjust the ratio of the two materials through the raw liquid flow regulating valve to support the mixed liquid concentration adjustable function of the mixed liquid outlet device.

[0024] In some embodiments, the mixed liquid discharge device further includes a raw liquid flow sensor, which is disposed in the second delivery pipe and located at the material suction end of the second delivery pipe. In the above technical solution, the mixed liquid discharge device can detect whether the raw liquid is insufficient through the raw liquid flow sensor and can also determine whether the flow control valve is completely closed based on fluctuations in the raw liquid flow detection data.

[0025] In a second aspect, the present application provides a mouthwash irrigator comprising a housing, a mixing and discharging device according to any embodiment of the first aspect of the present application, a first container, a second container, and a nozzle. The mixing and discharging device is disposed within the housing; the first container and the second container are both disposed within the housing, the first container being connected to a first delivery tube, and the second container being connected to a second delivery tube; and the nozzle is disposed on one side of the housing and is connected to the liquid outlet. In the above technical solution, the mouthwash irrigator achieves the same technical effects as the aforementioned mixing and discharging device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 This is a schematic structural diagram of a mouthwash irrigator according to some embodiments of the present application;

[0028] Figure 2 A schematic diagram of a partial structure of a mouthwash irrigator according to some embodiments of the present application;

[0029] Figure 3 A schematic diagram of a mixing liquid outlet device from a first perspective illustrating some embodiments of the present application;

[0030] Figure 4 An exploded schematic diagram from a first perspective of a reduction transmission assembly according to some embodiments of the present application;

[0031] Figure 5 An exploded schematic diagram from a second perspective of a reduction transmission assembly according to some embodiments of the present application;

[0032] Figure 6 This is a partial structural diagram of a reduction transmission assembly according to some embodiments of the present application;

[0033] Figure 7 Schematic diagrams of explosions of reduction transmission assemblies according to other embodiments of the present application;

[0034] Figure 8 Schematic diagrams of explosions of reduction transmission assemblies according to some other embodiments of the present application;

[0035] Figure 9 This is a schematic structural diagram of a first transmission assembly and a mixing pump shown in some embodiments of the present application;

[0036] Figure 10 A schematic diagram of a mixing liquid outlet device from a second perspective illustrating some embodiments of the present application;

[0037] Figure 11 This is a partial structural diagram of a mixed liquid outlet device according to some embodiments of the present application;

[0038] Figure 12 This is a schematic front view of a mixing liquid outlet device according to some embodiments of the present application.

[0039] Icons: 1-mouthwash water irrigator; 10-body; 11-nozzle; 12-controller; 13-battery; 14-first container; 15-second container; 150-second liquid injection port; 2-mixing liquid outlet device; 21-first delivery pipe; 22-second delivery pipe; 23-mixing pump; 231-mixing pump housing; 232-power push rod; 230-liquid outlet; 24-raw liquid pump; 240-raw liquid pump housing; 241-raw liquid pump rotor; 25-drive unit; 26-first transmission pipe Dynamic assembly; 260-coupling gear; 261-first gear plate; 262-eccentric shaft; 27-reduction transmission assembly; 270-gear mounting frame; 271-input element; 272-output element; 273-first ring gear; 274-planetary gear; 2741-first gear matching part; 2742-secondary gear matching part; 275-bevel gear; 276-intermediate gear; 277-drive worm gear; 280-three-way element; 281-check valve; 282-raw liquid flow regulating valve. DETAILED DESCRIPTION

[0040] The terms "first", "second", "third", etc. are only used to distinguish and describe, and do not indicate the order of arrangement, nor can they be understood as indicating or implying relative importance.

[0041] Furthermore, terms such as "horizontal," "vertical," and "overhanging" do not necessarily imply that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0042] In the description of this application, it should be noted that the terms "inside", "outside", "left", "right", "up", "down", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on this application.

[0043] In the description of this application, unless otherwise clearly specified and limited, the terms "set", "install", "connected" and "connect" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be a connection between the internal parts of two elements.

[0044] The technical solution of this application will be described in detail below with reference to the accompanying drawings.

[0045] An oral irrigator, also known as a "water flosser," is an auxiliary tool used for oral cleaning. Its working principle is generally as follows: tap water or purified water is filled into the irrigator's water tank, which is then pumped and pressurized by a water pump to produce a high-pressure water flow for flushing between teeth and achieving oral cleaning and care. In related art, oral irrigators typically only have a single container for storing water, and users complete the task of oral cleaning by adding tap water or purified water once or multiple times.

[0046] With the increasing popularity of oral health knowledge, more and more users are turning to mouthwash to maintain oral hygiene. Mouthwash can freshen the mouth, inhibit tooth decay, help remove or inhibit the formation of plaque, tartar, or tartar, and improve the health of oral soft tissues to better clean and protect the oral cavity. To simplify the process of mixing mouthwash with purified water, designing a mouthwash irrigator that can mix mouthwash concentrate or effervescent mouthwash with purified water in a fixed ratio and then pump it out under pressure has become a key research direction in the field of dental cleaning devices.

[0047] See Figures 1 to 2 , Figure 1 This is a schematic structural diagram of a mouthwash irrigator 1 according to some embodiments of the present application; Figure 2 This is a partial structural diagram of a mouthwash water irrigator 1 according to some embodiments of the present application. Figures 1 to 2 As shown, the present application provides a mouthwash and water irrigator 1, which may include a body 10, a mixing and discharging device 2, a first container 14, a second container 15, and a nozzle 11. The mixing and discharging device 2, the first container 14, and the second container 15 may all be disposed within the body 10, with each of the first container 14 and the second container 15 being connected to the mixing and discharging device 2 via a delivery tube; the nozzle 11 may be disposed on one side of the body 10 and connected to the liquid outlet 230 of the mixing and discharging device 2.

[0048] Specifically, the body 10 is the basic frame of the entire mouthwash irrigator 1. It is usually made of durable plastic or metal materials. The appearance of the body 10 can be designed to be handheld or desktop for easy use by users. The nozzle 11 is usually connected to one end of the body 10. The nozzle 11 is connected to the liquid outlet 230 of the mixing liquid outlet device 2 to spray the mixed material (usually in liquid form) in a high-pressure mode. The nozzle 11 can be set to different structures according to different spray modes, such as a single hole corresponding to a fine water column mode, a plurality of dense small holes corresponding to a scattered spray mode, etc., to meet different cleaning needs.

[0049] The first container 14 or the second container 15 is used to store a single material to be mixed (usually in liquid state, paste state, or fine solid particle state). The first container 14 or the second container 15 can be located inside the body 10 or at the other end of the body 10. The first container 14 or the second container 15 can be configured to be detachably connected to the body 10 to provide convenient fluid replenishment for the user. In some embodiments, a liquid filling port can be provided on the outer surface of the first container 14 or the second container 15 (for example, the top of the second container 15 is the second liquid filling port 150). The first container 14 or the second container 15 can be a shell-like container or a collapsible bag-like container.

[0050] The mixing and liquid discharging device 2 is a device for uniformly mixing and discharging multiple materials. The mixing chamber of the mixing and liquid discharging device 2 is connected to the first container 14 through the first conveying pipe 21, and the mixing chamber of the mixing and liquid discharging device 2 is connected to the second container 15 through the second conveying pipe 22. The materials in the first container 14 and the second container 15 are conveyed to the mixing chamber and mixed uniformly, and then enter the nozzle 11 through the liquid outlet 230 and are finally discharged from the nozzle 11. In some embodiments, the mixing and liquid discharging device 2 can also adjust the discharge pressure and discharge flow of the mixed material to improve the discharge effect or cleaning effect of the mixed material.

[0051] In some embodiments, the mouthwash irrigator 1 further includes a controller 12 and a battery 13. The controller 12 and the battery 13 are electrically connected and can both be arranged inside the body 10. The controller 12 can also be electrically connected to the mixed liquid outlet device 2 to control the start and stop of the mixed liquid outlet device 2. The controller 12 is usually arranged adjacent to the operation panel of the mouthwash irrigator 1. The controller 12 can also be used to control the liquid outlet pressure and liquid outlet flow of the mixed liquid outlet device 2 to meet the personalized needs of the user. The battery 13 can be a rechargeable lithium battery 13, which provides power to the mixed liquid outlet device 2 in the mouthwash irrigator 1 to ensure its long-term operation. In some embodiments, the battery 13 can also realize charge and discharge management through the controller 12, thereby realizing stable operation of the mouthwash irrigator 1.

[0052] See Figure 3 , Figure 3 This is a schematic diagram of the first perspective of the mixed liquid outlet device 2 shown in some embodiments of the present application. Figure 3As shown, the present application provides a mixed liquid discharge device 2, comprising a mixing pump 23, a first delivery pipe 21, a second delivery pipe 22, a raw liquid pump 24, a drive unit 25, a first transmission assembly 26, and a reduction transmission assembly 27. The mixing pump 23 has a liquid outlet 230, and the first delivery pipe 21 and the second delivery pipe 22 are both in communication with the mixing pump 23; the raw liquid pump 24 is connected to the second delivery pipe 22, and is used to pump the material in the second delivery pipe 22 toward the mixing pump 23; the first transmission assembly 26 and the reduction transmission assembly 27 are both connected to the drive unit 25 and are arranged on the same side of the drive unit 25; the first transmission assembly 26 is connected to the mixing pump 23, and the reduction transmission assembly 27 is connected to the raw liquid pump 24, and the transmission ratio of the reduction transmission assembly 27 is greater than that of the first transmission assembly 26.

[0053] Specifically, the mixing pump 23 is a pump capable of uniformly mixing materials drawn from the first delivery pipe 21 and the second delivery pipe 22, and then pressurizing and delivering the mixed material to the nozzle 11 or other outlet through the liquid outlet 230. The first delivery pipe 21 is used to accommodate material discharged from the first container 14 but not yet reaching the mixing pump 23; the second delivery pipe 22 is used to accommodate material discharged from the second container 15 but not yet reaching the mixing pump 23. The raw liquid pump 24 is a pump capable of pumping material in the second delivery pipe 22 toward the mixing pump 23, ensuring smooth entry and mixing. The drive unit 25 is a power element, such as a drive motor, that provides power to drive the first transmission assembly 26 and the reduction transmission assembly 27. The first transmission assembly 26 is a transmission structure that transmits the power output by the drive unit 25 to the mixing pump 23, enabling it to draw material or pressurize and pump the mixed material. The reduction transmission assembly 27 is a transmission structure that transmits the power output by the drive unit 25 to the raw liquid pump 24, enabling it to operate at a lower pumping speed.

[0054] In the present embodiment, the second container 15 is typically used to store mouthwash ingredients or stock solutions for rinsing the oral cavity, such as concentrated liquids to be diluted, effervescent granules to be dissolved, powdered solvents, and other mouthwash materials or solutions. For example, the second container 15 can store mouthwash disinfectant, mouthwash anesthetic, mouthwash cleaning paste, mouthwash concentrate, or effervescent granules to be dissolved. Accordingly, the second delivery tube 22 and stock solution pump 24 are both used to transport the materials in the second container 15. The first container 14 typically stores liquids for diluting or dissolving materials, solvents or solutions for mixing, such as purified water or saline. Accordingly, the first delivery tube 21 is used to transport the materials in the first container 14. The mixing pump 23 draws the materials in the first container 14 and the second container 15 into the mixing chamber for mixing, and then pressurizes and outputs the liquid through the liquid outlet 230 and nozzle 11 to achieve more effective cleaning, disinfection, or spraying functions. The mixing liquid outlet device provided in the embodiment of the present application can be used not only in mouthwash irrigators, but also in other equipment that needs to achieve dilution, dissolution, and mixing functions, such as disinfection machines, humidification machines, flushing machines, etc.

[0055] For ease of understanding, the following embodiments are described using the example of the first container 14 being used to store pure water and the second container 15 being used to store mouthwash concentrate. However, the mixing and liquid discharge device provided in the embodiments of the present application is not limited to the mixing of multiple liquids or the mixing of liquids and solids, and can also achieve more diverse material mixing and output, which will not be described in detail here.

[0056] The transmission ratio refers to the ratio of the rotational speeds of the input element 271 to the output element 272 in the reduction transmission assembly 27 or the first transmission assembly 26. In situations where the mouthwash concentrate and purified water need to be diluted and mixed in a non-proportional ratio (e.g., a lower mouthwash concentration), the transmission ratio of the reduction transmission assembly 27 should be greater than that of the first transmission assembly 26, so that the liquid pump 24 used to pump the mouthwash concentrate can pump the liquid at a reduced speed relative to the mixing pump 23. On this basis, the first transmission assembly 26 and the reduction transmission assembly 27 are both connected to the same output shaft of the drive unit 25 and are both located on the same side of the drive unit 25. This improves the overall compactness of the structure and the rationality of the spatial layout of the mixing and discharging device 2. Furthermore, the single-shaft output power of the drive unit 25 has a lower load pressure than the dual-shaft output power, and the operation and power output of the drive unit 25 are more stable.

[0057] In the embodiment of the present application, the drive unit 25 simultaneously drives the mixing pump 23 and the concentrate pump 24. The mixing pump 23 draws purified water from the first container 14 through the first delivery tube 21, and the concentrate pump 24 draws the mouthwash concentrate from the second container 15 through the second delivery tube 22. In related art, mouthwash irrigators typically use two drive motors to drive the two pumps, each independently controlling the operation of the pumps. This structure is subject to circuit delays and mechanical quality deviations, which can easily affect the synchronous operation of the two pumps, resulting in large errors in the concentration of the output mouthwash mixture.

[0058] In the embodiment of the present application, the first transmission assembly 26 and the reduction transmission assembly 27 are arranged on the same side of the drive unit 25, so that the spatial layout of the mixing and discharging device 2 is more reasonable and the overall structure is more compact, which is conducive to the miniaturization of the overall structure of the mixing and discharging device 2 and makes the assembly process more convenient; the first transmission assembly 26 and the reduction transmission assembly 27 are both connected to the same drive unit 25, which can reduce the flow rate error of the first delivery pipe 21 and the second delivery pipe 22 respectively delivering materials to the mixing pump 23, reduce the power source control deviation, and make the actual mixed concentration of the mixed liquid more accurate; the two transmission assemblies are connected to the same drive unit 25 and arranged on the same side of the drive unit 25, which can reduce the output load of the drive unit 25 and improve the stability of the operation of the mixing and discharging device 2; on this basis, by differentiating the transmission ratios of the reduction transmission assembly 27 and the first transmission assembly 26, the mixing and discharging device 2 can achieve non-equal proportion mixing of the two materials, thereby realizing the function of the mixing and discharging device 2 for diluting and quantitative proportioning of high-concentration solutions, making the mixing and discharging device 2 more practical and applicable.

[0059] In some embodiments, the reduction transmission assembly 27 includes an input element 271 and an output element 272, and the input element 271 and the output element 272 can be coupled to each other through gears to achieve reduction transmission. Specifically, the input element 271 can be in transmission connection with the drive unit 25, and the output element 272 is connected to the raw liquid pump 24. In the embodiment of the present application, the input element 271 and the output element 272 are coupled to each other through gears to achieve power transmission and reduction transmission, which can improve the transmission efficiency, transmission stability, transmission accuracy and reduction control accuracy of the reduction transmission assembly 27, thereby improving the accuracy of the mixed liquid discharge device 2 in controlling the ratio of the mixed liquid discharge.

[0060] See Figures 4 and 5 , Figure 4 This is a first-perspective exploded schematic diagram of the reduction transmission assembly 27 shown in some embodiments of the present application; Figure 5 This is a second perspective exploded schematic diagram of the reduction transmission assembly 27 shown in some embodiments of the present application. Figure 4 、 Figure 5As shown, the reduction transmission assembly 27 further includes at least one planetary gear 274, which is rotatably disposed between the input element 271 and the output element 272, but remains in a fixed position. In this embodiment of the present application, the use of a planetary gear structure for reduction transmission between the input element 271 and the output element 272 facilitates structural simplicity and compactness, and also improves transmission efficiency, precision, and stability, resulting in quieter and more stable operation of the mixing and dispensing device 2 and the mouthwash irrigator 1.

[0061] In other embodiments of the present application, the input element can be a gear configuration, and multiple identical planetary gears can be provided and evenly distributed circumferentially on the outside of the input element (i.e., the input element is inserted between multiple planetary gears). Each planetary gear is independent of each other, and the input element and each planetary gear can be in a meshing relationship. When the input element rotates, it drives each planetary gear to rotate. The output element has a ring gear configuration, and the tooth structure of the output element surrounds the outside of all planetary gears, and the output element and the planetary gears are in a meshing relationship. When the planetary gears rotate, they can drive the output element, which has a larger diameter than the input element, to rotate. The speed of the output element is lower than the speed of the input element, thereby realizing the reduction transmission function of the reduction transmission assembly.

[0062] like Figure 4 、 Figure 5 As shown, in some embodiments, the reduction transmission assembly 27 further includes a primary ring gear 273 rotatably mounted on a gear mounting frame 270. The primary ring gear 273 is coaxially connected to the input element 271 and rotates synchronously therewith. Multiple identical planetary gears 274 are disposed within the primary ring gear 273. The multiple planetary gears 274 are independent of each other and mesh with the primary ring gear 273. The output element 272 also has a ring gear configuration and meshes with each of the planetary gears 274. When the input element 271 rotates, the primary ring gear 273 rotates synchronously with the input element 271 and drives the planetary gears 274 to rotate. The planetary gears 274, when rotating, can drive the output element 272 to rotate. The transmission ratio from the input element 271 to the output element 272 is greater than 1, thereby achieving the reduction transmission function of the reduction transmission assembly 27.

[0063] See Figure 6 , Figure 6 This is a partial structural diagram of the reduction transmission assembly 27 shown in some embodiments of the present application. Figures 4 to 6As shown, the planetary gear 274 includes a coaxially connected primary tooth mating portion 2741 and a secondary tooth mating portion 2742. The diameter of the primary tooth mating portion 2741 is larger than that of the secondary tooth mating portion 2742. Specifically, the reduction transmission assembly 27 also includes a primary ring gear 273 that is coaxially connected to the input element 271 and rotates synchronously with it. The primary ring gear 273 is rotatably mounted on the gear mounting frame and meshes with the primary tooth mating portion 2741. The output element 272 is a secondary ring gear that meshes with the secondary tooth mating portion 2742.

[0064] In the embodiment of the present application, multiple identical planetary gears 274 may be provided, evenly distributed circumferentially within the primary ring gear 273. When the input element 271 rotates, the primary ring gear 273 rotates synchronously with the input element 271, driving the planetary gears 274 to rotate. The transmission from the input element 271 to the planetary gears 274 constitutes a primary reduction transmission. When the planetary gears 274 rotate, the secondary tooth mating portion 2742 rotates synchronously with the primary tooth mating portion 2741. Because the diameter of the secondary tooth mating portion 2742 is smaller than that of the primary tooth mating portion 2741, and the diameter of the secondary tooth disc is larger than that of the secondary tooth mating portion 2742, the secondary tooth disc rotates at a reduced speed driven by the secondary tooth mating portion 2742. The transmission from the planetary gears 274 to the output element 272 constitutes a secondary reduction transmission.

[0065] In the above technical solution, the planetary gear 274 with multi-stage tooth matching parts and different diameters enables the reduction transmission component 27 to achieve multi-stage deceleration, thereby achieving a larger reduction ratio, that is, the mixing and liquid discharge device 2 can achieve a material mixing function with greater differences in the amount of materials involved in the mixing, more extreme ratios, and lower mouthwash mixing concentrations (for example, a ratio relationship of 1:100 between the volume of mouthwash concentrate and pure water can be achieved); the coaxially connected first-stage tooth matching part 2741 and the second-stage tooth matching part 2742 make the overall structure of the reduction transmission component 27 more compact and simple.

[0066] In other embodiments of the present application, in the reduction transmission assembly, the planetary gear can also drive the operation of the raw liquid pump in the form of a structure that revolves around the input element and rotates on its own (i.e., an epicyclic gear train). The output element is a planetary gear, and the planetary gear is rotatably arranged on one side of the input element; when the input element rotates on its own, the planetary gear can rotate around the input element. Specifically, the reduction transmission assembly can also include an intermediate ring gear that is coaxially arranged and fixed with the input element, the planetary gear is meshed with the intermediate ring gear, and the planetary gear is connected to the input element through a hinge (planetary carrier). When the input element rotates on its own, the input element drives the planetary gear to rotate around the input element through the hinge, and the planetary gear is meshed with the intermediate ring gear during the process of rotating around the input element. Through cooperation with the intermediate ring gear, the speed at which the planetary gear rotates around the input element is lower than the rotation speed of the input element, thereby realizing the reduction transmission function of the reduction transmission assembly.

[0067] See Figure 7 , Figure 7 Schematic diagram of the explosion of the reduction gear assembly 27 shown in some other embodiments of the present application. Figure 7 As shown, the reduction transmission assembly 27 may further include a bevel gear 275 and an intermediate gear 276, which are coaxially fixedly connected. The output element 272 of the reduction transmission assembly 27 is an output gear plate, and the input element 271 of the reduction transmission assembly 27 has a bevel gear configuration. Specifically, the bevel gear 275 meshes with the input element 271, and the intermediate gear 276 meshes with the output gear plate.

[0068] In the embodiment of the present application, when the input element 271 rotates, the bevel gear 275 that cooperates with the input element 271 rotates accordingly, and the intermediate gear 276 that rotates synchronously with the bevel gear 275 drives the output gear plate that meshes with the intermediate gear 276 to reduce its rotation during rotation. In the above technical solution, the arrangement of the bevel gear 275 and the intermediate gear 276 enables the reduction transmission assembly 27 to achieve a change in transmission direction, and the lateral space of the mixed liquid outlet device 2 can be more efficiently utilized, and the structural layout is more reasonable and compact; for further information, please refer to Figure 6 In the embodiment shown, by setting the diameters of the bevel gear 275 and the intermediate gear 276, the reduction transmission assembly 27 can also achieve multi-stage reduction, thereby achieving a larger reduction ratio to meet the material mixing function with more extreme ratios.

[0069] See Figure 8 , Figure 8 FIG. 2 is an exploded schematic diagram of a reduction gear assembly 27 according to some other embodiments of the present application. Figure 8As shown, the input element 271 is a transmission worm, the output element 272 is an output gear disc, and the reduction transmission assembly 27 further includes a transmission worm wheel 277 and an intermediate gear 276. The transmission worm wheel 277 and the intermediate gear 276 are coaxially fixedly connected; the transmission worm and the transmission worm wheel 277 are meshed, and the intermediate gear 276 is meshed with the output gear disc.

[0070] In the embodiment of the present application, when the transmission worm rotates, the transmission worm wheel 277 matched with the transmission worm rotates accordingly, and the intermediate gear 276 that rotates synchronously with the transmission worm wheel 277 drives the output gear plate meshing with the intermediate gear 276 to reduce the speed of rotation during its rotation. In the above technical solution, the combination of the worm wheel and the worm enables the reduction transmission assembly 27 to support a larger reduction ratio and have a self-locking function; the arrangement of the transmission worm wheel 277 and the intermediate gear 276 enables the reduction transmission assembly 27 to achieve a change in transmission direction, its lateral space can be more efficiently utilized, and the structural layout is more reasonable and compact; for further information, please refer to Figure 6 In the embodiment shown, by setting the diameters of the transmission worm gear 277 and the intermediate gear 276, the reduction transmission assembly 27 can also achieve two-stage reduction, thereby achieving a larger reduction ratio and meeting the material mixing function with more extreme proportions.

[0071] In other embodiments of the present application, the reduction transmission assembly includes an input element and an output element, and the input element and the output element can also be connected by a transmission belt or a transmission chain to realize reduction transmission. Specifically, the input element is connected to the drive unit, and the output element is connected to the raw liquid pump, and the reduction transmission is realized between the input element and the output element by the diameter difference between the multiple pulleys corresponding to the transmission belt, or by the diameter difference between the multiple sprockets corresponding to the transmission chain. In the above technical solution, the reduction transmission is realized between the input element and the output element by the transmission belt or the transmission chain, which can make the reduction transmission assembly have higher flexibility in spatial layout and have overload protection capability; in addition, the reduction transmission assembly driven by the transmission belt or the transmission chain is easy to install and has low cost, and the reduction transmission assembly using the transmission belt has shock absorption and buffering capabilities.

[0072] Please combine Figures 3 to 8As shown, the liquid pump 24 may include a liquid pump housing 240 and at least one liquid pump rotor 241, rotatably disposed within the liquid pump housing 240. Specifically, a portion of the second delivery tube 22 is accommodated between the liquid pump housing 240 and the liquid pump rotor 241. The liquid pump rotor 241 is fixedly connected to one side of the output element 272 and rotates synchronously with the output element 272. The liquid pump rotor 241 and the input element 271 may be located on opposite sides of the output element 272. Multiple liquid pump rotors 241 may be evenly distributed circumferentially around the central axis of the output element 272. When the liquid pump 24 is assembled, the minimum spacing between the liquid pump rotor 241 and the inner wall of the liquid pump housing 240 is less than the diameter of the second delivery tube 22, thereby enabling the liquid pump rotor 241 to squeeze the second delivery tube 22 and push the mouthwash concentrate in the second delivery tube 22.

[0073] In the embodiment of the present application, the raw liquid pump rotor 241 squeezes the second delivery tube 22 as it rotates in a fixed direction with the output element 272, thereby pumping material toward the mixing pump 23. The rotation direction of the raw liquid pump rotor 241 is the same as that of the output element 272, and both are capable of pushing the mouthwash concentrate in the second delivery tube 22 into the mixing pump 23. In the above technical solution, the raw liquid pump rotor 241 squeezes the second delivery tube 22 to pump material toward the mixing pump 23, thereby reducing or even eliminating the probability of contamination of the material in the second delivery tube 22. Its compact and simple structure is suitable for pumping materials of various viscosities and forms, and it also provides more accurate and reliable material flow.

[0074] See Figure 9 , Figure 9 Schematic diagram of the structure of the first transmission assembly 26 and the mixing pump 23 shown in some embodiments of the present application. Figure 9 As shown, the mixing pump 23 may include a mixing pump housing 231 and a power push rod 232. The cavity inside the mixing pump housing 231 is a mixing chamber, which is connected to the liquid outlet 230. One end of the power push rod 232 is movably disposed in the mixing chamber, and the other end of the power push rod 232 is connected to the first transmission assembly 26.

[0075] Furthermore, the vertical distance between the power push rod 232 and the liquid outlet 230 changes with the movement of the power push rod 232, but no matter how the power push rod 232 moves, the active area of ​​the power push rod 232 will not cover the connecting position of the first delivery pipe 21, the second delivery pipe 22 and the mixing chamber, that is, the vertical distance between the power push rod 232 and the liquid outlet 230 is always greater than the vertical distance between the delivery pipe connecting port and the liquid outlet 230.

[0076] In the above technical solution, the mixing pump 23 that absorbs and pushes materials through the reciprocating movement of the power push rod 232 can be regarded as a piston pump. The piston pump can generate a larger pushing force, thereby achieving a higher flow rate output of the mixed material, and the mechanical efficiency of the piston pump is higher; in addition, the reciprocating motion of the power push rod 232 enables the mixing pump 23 to achieve accurate and stable flow output, and has a strong self-priming ability. It has a wide range of applications, high reliability, simple structure, and easy maintenance.

[0077] In some embodiments, the mixing pump 23 may further include a uniform member disposed within the mixing chamber, with the liquid outlet 230 and the power push rod 232 located on either side of the uniform member. The uniform member may be provided with at least one through-hole for material to pass through. Furthermore, the connection point between the first delivery pipe 21 and the second delivery pipe 22 may be located between the uniform member and the liquid outlet 230. In the above technical solution, the uniform member with a through-hole can disrupt the flow of material (usually liquid) entering or about to leave the mixing chamber, thereby ensuring a more uniform and thorough mixing of the two materials.

[0078] In some embodiments, the first transmission assembly 26 may include a coupling gear 260, a first gear plate 261, and an eccentric shaft 262. The coupling gear 260 is coaxially fixedly connected to the output shaft of the drive unit 25, meshing with the first gear plate 261. The eccentric shaft 262 is disposed on one side of the first gear plate 261. The other end of the power push rod 232 is sleeved on the eccentric shaft 262 and is capable of rotating relative to the eccentric shaft 262. Furthermore, the input element 271 of the reduction transmission assembly 27 is coaxially fixedly connected to the first gear plate 261 and is capable of rotating synchronously with the first gear plate 261.

[0079] In the embodiment of the present application, the power of the drive unit 25 is transmitted through the output shaft to the coupling gear 260 coaxially fixed to the output shaft, and then transmitted to the eccentric shaft 262 through the engagement of the coupling gear 260 with the first gear plate 261, thereby driving the power push rod 232 to perform reciprocating linear motion. The input element 271 of the reduction transmission assembly 27 is coaxially connected to the first gear plate 261. The reduction transmission assembly 27 further reduces the speed based on the rotational speed of the first gear plate 261 or the eccentric shaft 262. Therefore, the transmission ratio of the reduction transmission assembly 27 is greater than that of the first transmission assembly 26. In the above technical solution, the first transmission assembly 26 can convert the rotational motion output by the drive unit 25 into a linear reciprocating motion through the setting of the eccentric shaft 262, thereby realizing the reciprocating movement of the power push rod 232. In addition, the first transmission assembly 26 adopting the above structure is compact, easy to integrate, and has high transmission efficiency.

[0080] See Figure 10 , Figure 10 This is a second perspective diagram of the mixed liquid outlet device 2 shown in some embodiments of the present application. Figure 10As shown, the eccentric shaft 262 and the power push rod 232 can be disposed on the same side of the first gear disc 261 as the reduction transmission assembly 27. Alternatively, in other embodiments, the eccentric shaft 262 and the power push rod 232 can be disposed on opposite sides of the first gear disc 261 as the reduction transmission assembly 27. In the above technical solution, the reduction transmission assembly 27 and the power push rod 232 can be disposed on the same side or different sides of the first gear disc 261 according to the actual space available, so that the overall structure of the mixed liquid discharge device 2 can be reasonably arranged within the limited space, and can be more compact and small, and the probability of the delivery pipe being entangled by moving parts can be reduced.

[0081] See Figure 11 , Figure 11 This is a partial structural diagram of the mixed liquid outlet device 2 shown in some embodiments of the present application. Figure 10 、 Figure 11 As shown, the first delivery pipe 21 and the second delivery pipe 22 can be connected to the mixing pump 23 (or mixing chamber) at the same communication port via the three-way element 280. Specifically, a one-way valve can be provided at the communication point between the three-way element 280 and the mixing pump 23; alternatively, a first one-way valve can be provided at the communication point (communication port) between the three-way element 280 and the mixing pump 23, a second one-way valve can be provided at the communication point between the three-way element 280 and the second delivery pipe 22, and a third one-way valve can be provided at the communication point between the three-way element 280 and the first delivery pipe 21.

[0082] In the above technical solution, the first delivery pipe 21 and the second delivery pipe 22 are connected to the same connecting port of the mixing chamber through the three-way element 280, which can reduce the processing difficulty and leakage probability of the mixing pump 23, and can reduce the probability of mixed liquid backflow through the one-way valve 281; further, considering that the mixing pump 23 can generate a larger mixed liquid pushing force, the setting of the second one-way valve or the third one-way valve can further reduce the probability of the mixed liquid breaking through the first one-way valve due to the larger pressure and still backflowing into the second delivery pipe 22 or the first delivery pipe 21, thereby improving the accuracy of the mixed liquid ratio.

[0083] In other embodiments, the first delivery pipe 21 and the second delivery pipe 22 can be connected at different positions of the mixing pump 23 respectively. The mixed liquid outlet device 2 also includes at least one one-way valve 281. The one-way valve 281 can be provided at the connection position between the first delivery pipe 21 and the mixing pump 23, and / or the one-way valve 281 can be provided at the connection position between the second delivery pipe 22 and the mixing pump 23. Furthermore, a one-way valve 281 can be provided at the connection ports where the first delivery pipe 21 and the second delivery pipe 22 are connected to the mixing pump 23 respectively. In the above technical solution, the provision of the one-way valve 281 reduces the probability of the mixed material in the mixing chamber flowing back into the first delivery pipe 21 or the second delivery pipe 22, thereby improving the accuracy of the mouthwash irrigator 1 in controlling the mixing of multiple materials in a fixed proportion.

[0084] See Figure 12 , Figure 12 This is a schematic diagram of the main view of the mixed liquid outlet device 2 shown in some embodiments of the present application. Figure 12 As shown, the mixed liquid outlet device 2 may further include a raw liquid flow regulating valve 282, which is connected to the second delivery pipe 22. Specifically, the raw liquid flow regulating valve 282 changes the cross-sectional area of ​​the flow channel by adjusting the opening of the valve, thereby changing the flow rate of the medium through the valve. The raw liquid flow regulating valve 282 can achieve flow adjustment and balance of the liquid in the second delivery pipe 22 through the cooperation of a manual adjustment valve group or an electric adjustment valve group and an automatic balancing valve group, wherein the manual adjustment valve group or the electric adjustment valve group is used to set the flow rate, and the automatic balancing valve group is used to maintain a constant flow rate. In the above technical solution, the mixed liquid outlet device 2 can further adjust the ratio of the two materials through the raw liquid flow regulating valve 282 to realize the mixed liquid concentration adjustable function of the mixed liquid outlet device 2, thereby improving the practicality of the mixed liquid outlet device 2.

[0085] In some embodiments, the mixed liquid discharge device 2 may further include a raw liquid flow sensor, which is disposed in the second delivery pipe 22 and may be located at the material suction end of the second delivery pipe 22, the material suction end being adjacent to or within the second container 15. In the above technical solution, the mixed liquid discharge device 2 or the mouthwash irrigator 1 can determine whether the raw liquid (mouthwash concentrate) is insufficient based on the flow detection data fed back by the raw liquid flow sensor, and promptly prompt the user to replenish the liquid. It can also determine whether the flow regulating valve is completely closed based on fluctuations in the raw liquid flow detection data.

[0086] Furthermore, the mouthwash irrigator 1 may also include a water level detection sensor, which may be arranged in the first container 14 or the second container 15 to detect whether the liquid in the first container 14 or the second container 15 is insufficient; the mixed liquid outlet device 2 may also include a first flow sensor, which may be arranged in the first delivery pipe 21 and located at the material suction end of the first delivery pipe 21 to detect whether the liquid in the first container 14 is insufficient.

[0087] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A mixed liquid discharge device, characterized in that: include: A mixing pump, a first delivery pipe and a second delivery pipe, wherein the mixing pump has a liquid outlet, and the first delivery pipe and the second delivery pipe are both connected to the mixing pump; a raw liquid pump connected to the second delivery pipe, and configured to pump the material in the second delivery pipe toward the mixing pump; A drive unit, a first transmission assembly and a reduction transmission assembly, wherein the first transmission assembly and the reduction transmission assembly are both connected to the drive unit and are arranged on the same side of the drive unit; the first transmission assembly is connected to the mixing pump, and the reduction transmission assembly is connected to the raw liquid pump, and the transmission ratio of the reduction transmission assembly is greater than the transmission ratio of the first transmission assembly.

2. The mixed liquid discharge device according to claim 1, characterized in that: The reduction transmission assembly includes an input element and an output element. The input element and the output element are matched with each other through gears to reduce transmission. The input element is connected to the drive unit, and the output element is connected to the raw liquid pump.

3. The mixed liquid discharge device according to claim 2, characterized in that: The reduction transmission assembly further includes at least one planetary gear, and the planetary gear is rotatably disposed between the input element and the output element.

4. The mixed liquid discharge device according to claim 3, characterized in that: The planetary gear comprises a primary tooth matching portion and a secondary tooth matching portion which are coaxially fixedly connected, wherein the diameter of the primary tooth matching portion is larger than the diameter of the secondary tooth matching portion; The reduction transmission assembly also includes a primary ring gear coaxially connected to the input element and rotating synchronously, and the primary ring gear is engaged with the primary tooth matching portion; the output element is a secondary ring gear, and the secondary ring gear is engaged with the secondary tooth matching portion.

5. The mixed liquid discharge device according to claim 2, characterized in that: The output element is a planetary gear, and the planetary gear is rotatably provided on one side of the input element; when the input element rotates, the planetary gear can rotate around the input element.

6. The mixed liquid discharge device according to claim 2, characterized in that: The reduction transmission assembly further includes a bevel gear and an intermediate gear, wherein the bevel gear and the intermediate gear are coaxially fixedly connected; the output element is an output gear disc, the bevel gear is meshed with the input element, and the intermediate gear is meshed with the output gear disc.

7. The mixed liquid discharge device according to claim 2, characterized in that: The reduction transmission assembly also includes a transmission worm wheel and an intermediate gear, and the transmission worm wheel and the intermediate gear are coaxially fixedly connected; the input element is a transmission worm, and the output element is an output gear plate, the transmission worm is engaged with the transmission worm wheel, and the intermediate gear is engaged with the output gear plate.

8. The mixed liquid discharge device according to claim 1, characterized in that: The reduction transmission assembly includes an input element and an output element, wherein the input element and the output element are connected via a transmission belt or a transmission chain for reduction transmission. The input element is connected to the drive unit, and the output element is connected to the raw liquid pump.

9. The mixed liquid discharge device according to any one of claims 1 to 8, characterized in that: The raw liquid pump includes a raw liquid pump housing and a raw liquid pump rotor. The raw liquid pump rotor is rotatably disposed in the raw liquid pump housing, and a partial section of the second delivery pipe is accommodated between the raw liquid pump housing and the raw liquid pump rotor. When the raw liquid pump rotor rotates, it squeezes the second delivery pipe to pump material toward the mixing pump.

10. The mixed liquid discharge device according to any one of claims 1 to 8, characterized in that: The mixing pump includes a mixing chamber and a power push rod. The mixing chamber is communicated with the liquid outlet. One end of the power push rod is movably disposed in the mixing chamber, and the other end of the power push rod is connected to the first transmission assembly.

11. The mixed liquid discharge device according to claim 10, characterized in that: The mixing pump further comprises a uniform member, which is arranged in the mixing chamber. The liquid outlet and the power push rod are respectively located on both sides of the uniform member. The uniform member is provided with at least one through hole.

12. The mixed liquid discharge device according to claim 10, characterized in that: The first transmission assembly includes a coupling gear, a first toothed disc and an eccentric shaft. The coupling gear is coaxially fixed to the drive unit, the coupling gear is engaged with the first toothed disc, the eccentric shaft is arranged on one side of the first toothed disc, and the other end of the power push rod is sleeved on the eccentric shaft.

13. The mixed liquid discharge device according to claim 12, characterized in that: The eccentric shaft and the reduction transmission assembly are both arranged on the same side of the first gear disc, or the eccentric shaft and the reduction transmission assembly are respectively arranged on two opposite sides of the first gear disc.

14. The mixed liquid discharge device according to any one of claims 1 to 8, characterized in that: The mixed liquid outlet device further includes at least one one-way valve, which is provided at a communication position between the first delivery pipe and the mixing pump, and / or the one-way valve is provided at a communication position between the second delivery pipe and the mixing pump.

15. The mixed liquid discharge device according to any one of claims 1 to 8, characterized in that: The first delivery pipe and the second delivery pipe are connected to the mixing pump through a three-way element, and a first one-way valve is provided at the communication position between the three-way element and the mixing pump.

16. The mixed liquid discharge device according to claim 15, characterized in that: A second one-way valve is provided at the communication position between the three-way element and the second delivery pipe.

17. The mixed liquid discharge device according to any one of claims 1 to 8, characterized in that: The mixed liquid outlet device further includes a raw liquid flow regulating valve, and the raw liquid flow regulating valve is connected to the second delivery pipe.

18. The mixed liquid discharge device according to claim 17, characterized in that: The mixed liquid outlet device further includes a raw liquid flow sensor, which is arranged in the second conveying pipe and located at the material suction end of the second conveying pipe.

19. A mouthwash water irrigator, characterized in that: include: body; The mixed liquid outlet device according to any one of claims 1 to 18, wherein the mixed liquid outlet device is arranged in the body; A first container and a second container are both disposed in the body, the first container is communicated with the first delivery pipe, and the second container is communicated with the second delivery pipe; The nozzle is arranged on one side of the machine body and is communicated with the liquid outlet.

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