Liquid mixing and dispensing device and mouthwash oral irrigator

Abstract

A liquid mixing and dispensing device (2) and a mouthwash oral irrigator (1), which alleviate the problems of large volume and unstable operation of the liquid mixing and dispensing device (2). The liquid mixing and dispensing device (2) comprises 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 speed-reduction transmission assembly (27), wherein 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 configured to pump a material in the second delivery pipe (22) to the mixing pump (23); the first transmission assembly (26) and the speed-reduction transmission assembly (27) are both connected to the drive unit (25) and are arranged on the same side of the drive unit (25); and the first transmission assembly (26) is connected to the mixing pump (23), the speed-reduction transmission assembly (27) is connected to the raw liquid pump (24), and the transmission ratio of the speed-reduction transmission assembly (27) is greater than the transmission ratio of the first transmission assembly (26).

Description

A mixing and dispensing device and a mouthwash irrigator

[0001] Relevant publicly available cross-references

[0002] This disclosure claims priority to Chinese Patent Application No. 2024225794926, filed on October 24, 2024, entitled "A Mixing Liquid Dispensing Device and Mouthwash Flosser", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This disclosure relates to the technical field of dental cleaning appliances, and more specifically, to a mixing and dispensing device and a mouthwash irrigator. Background Technology

[0004] A water flosser, also known as a mouthwash flosser, is an auxiliary tool designed for oral hygiene. A mouthwash flosser uses a pump to draw and mix purified water and mouthwash, then pumps the mixture out through a nozzle. The pumps for drawing purified water and mouthwash are typically controlled by separate drive units. Considering the overall weight requirements, battery capacity, and consistency of mechanical properties, using a single drive motor to simultaneously support the extraction and mixing of both materials is an important research direction in the structural design of mouthwash flossers.

[0005] In some related technologies, mouthwash irrigators employ a dual-output shaft drive unit to simultaneously support the operation of two water pumps. However, the two water pumps and their corresponding transmission components are located on opposite sides of the drive unit, resulting in an unreasonable structural layout and a large overall size. Furthermore, the dual-output shaft drive unit experiences a high output load while simultaneously supporting the transmission components on both sides and the operation of the water pumps, leading to unstable operation of the mouthwash irrigator. Additionally, most related technologies only support the pumping and mixing of equal volumes of mouthwash and purified water, and cannot support the mixing of concentrated solution and purified water at a slightly different concentration ratio. Summary of the Invention

[0006] The purpose of this disclosure is to provide a mixing liquid dispensing device and a mouthwash irrigator, which can alleviate the problems of large size, unreasonable structural layout and unstable operation of existing mixing liquid dispensing devices.

[0007] The embodiments of this disclosure are implemented as follows:

[0008] In a first aspect, this disclosure provides a mixing and discharging device, including 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 both the first and second delivery pipes are connected to the mixing pump. The raw liquid pump is connected to the second delivery pipe and configured to pump material from 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 located 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. The transmission ratio of the reduction transmission assembly is greater than the transmission ratio of the first transmission assembly.

[0009] In the above technical solution, the first transmission component and the reduction transmission component are positioned on the same side of the drive unit, making the spatial layout of the mixing and discharging device more reasonable and the overall structure more compact. This facilitates the miniaturization of the overall structure of the mixing and discharging device and makes the assembly process more convenient. Since both the first transmission component and the reduction transmission component are connected to the same drive unit, the control error of the first and second conveying pipes in quantitatively and proportionally conveying materials to the mixing pump can be reduced, as can the power source control deviation, resulting in a more accurate actual mixing concentration of the liquid. The connection of the two transmission components to the same drive unit and their placement on the same side of the drive unit reduces the output load of the drive unit and improves the operational stability of the mixing and discharging device. Furthermore, by setting the reduction transmission component—that is, the transmission ratio of the reduction transmission component is greater than that of the first transmission component—the mixing and discharging device can achieve non-uniform mixing of two materials. This enables the mixing and discharging device to perform functions such as dilution and quantitative mixing of high-concentration solutions, making the mixing and discharging device more practical and applicable to a wider range of situations.

[0010] In some embodiments, the speed reduction transmission assembly includes an input element and an output element, which are connected by gears for speed reduction transmission. The input element is connected to a drive unit, and the output element is connected to the original liquid pump. In the above technical solution, the gears between the input element and the output element realize power transmission and speed reduction transmission, which can improve transmission efficiency, transmission stability, transmission accuracy, and speed reduction control accuracy, thereby improving the accuracy of the mixed liquid ratio.

[0011] In some embodiments, the reduction transmission assembly further includes at least one planetary gear, which is 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 element and the output element is beneficial for structural simplification and compactness, and can also improve transmission efficiency, transmission accuracy, and transmission stability, making the mixing liquid dispensing device and mouthwash irrigator operate more quietly and stably.

[0012] In some embodiments, the planetary gear includes a primary gear engagement portion and a secondary gear engagement portion coaxially fixed together, the diameter of the primary gear engagement portion being larger than the diameter of the secondary gear engagement portion; the reduction transmission assembly also includes a primary gear ring coaxially connected to and rotating synchronously with the input element, the primary gear ring meshing with the primary gear engagement portion; the output element is a secondary gear ring, the secondary gear ring meshing with the secondary gear engagement portion. In the above technical solution, the planetary gear with multiple gear engagement portions and different diameters enables the reduction transmission assembly to achieve multi-stage reduction, thereby achieving a larger reduction ratio, and enabling the mixing and discharging device to support material mixing functions with greater differences in the amount of two materials involved in the mixing and more extreme proportions; the coaxially fixed primary and secondary gear engagement portions make the overall structure of the reduction transmission assembly more compact and simple.

[0013] In some embodiments, the output element is a planetary gear, which is 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 for speed reduction transmission between the input element and the output element, which is beneficial for structural simplification and compactness, and can also improve transmission efficiency, transmission accuracy and transmission stability, making the mixing liquid dispensing device and mouthwash irrigator operate more quietly and stably.

[0014] In some embodiments, the reduction transmission assembly further includes a bevel gear and an intermediate gear, which are coaxially and fixedly connected; the output element is an output gear disk, with the bevel gear meshing with the input element and the intermediate gear meshing with the output gear disk. In the above technical solution, the arrangement of the bevel gear and the intermediate gear enables the reduction transmission assembly to achieve changes in transmission direction, allowing for more efficient use of the lateral space of the reduction transmission assembly and a more rational 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 larger reduction ratios and more extreme material mixing functions.

[0015] In some embodiments, the input element is a transmission worm gear, and the reduction transmission assembly further includes a transmission worm wheel and an intermediate gear, which are coaxially and fixedly connected; the output element is an output gear disk; the transmission worm gear meshes with the transmission worm wheel, and the intermediate gear meshes with the output gear disk. In the above technical solution, the cooperation of the worm gear and the transmission worm wheel enables the reduction transmission assembly to achieve a larger reduction ratio and has 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, and the lateral space of the reduction transmission assembly can be utilized more efficiently, resulting in a more reasonable and compact overall structural layout; furthermore, 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 more extreme material mixing function.

[0016] In some embodiments, the speed reduction transmission assembly includes an input element and an output element, which are connected by a transmission belt or transmission chain for speed reduction transmission. The input element is connected to a drive unit, and the output element is connected to a raw material pump. In the above technical solution, the speed reduction transmission is achieved by the input element and the output element cooperating with a transmission belt or transmission chain, which has greater flexibility in spatial layout and overload protection capability. In addition, the speed reduction transmission assembly using a transmission belt or transmission chain is easy to install and has lower cost. The speed reduction transmission assembly using a transmission belt also has shock absorption and buffering capabilities.

[0017] In some embodiments, the feedstock pump includes a feedstock pump housing and a feedstock pump rotor. The feedstock pump rotor is rotatably disposed within the feedstock pump housing, and a portion of the second delivery pipe is housed between the feedstock pump housing and the feedstock pump rotor. When the feedstock pump rotor rotates, it compresses the second delivery pipe to pump material toward the mixing pump. In the above technical solution, the feedstock pump rotor pumps material toward the mixing pump by compressing the second delivery pipe, which can reduce or even eliminate the probability of material contamination. Its structure is compact and simple, suitable for pumping various types of materials, and provides more precise and reliable flow control for material pumping.

[0018] In some embodiments, the mixing pump includes a mixing chamber and a power push rod. The mixing chamber is connected to an 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 a first transmission assembly. In the above technical solution, the mixing pump, which draws and pushes materials by reciprocating the power push rod, can generate a larger mixing liquid pushing pressure, thereby achieving a higher flow rate output of the mixed materials and higher mechanical efficiency. The reciprocating motion of the power push rod also enables the mixing pump to achieve precise and stable flow output and has strong self-priming capability. It has a wide range of applications, high reliability, simple structure, and is easy to maintain.

[0019] In some embodiments, the mixing pump further includes a homogenizing element disposed within the mixing chamber, with the outlet and the power push rod located on opposite sides of the homogenizing element, and the homogenizing element having at least one through hole. In the above technical solution, the homogenizing element with the through hole can turbulently move materials just entering or about to leave the mixing chamber, thereby allowing the two materials to be mixed more evenly and thoroughly.

[0020] In some embodiments, the first transmission assembly includes a coupling gear, a first gear disc, and an eccentric shaft. The coupling gear is coaxially and fixedly connected to the drive unit and meshes with the first gear disc. The eccentric shaft is located on one side of the first gear disc, 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 setting of the eccentric shaft, can convert the rotational motion output by the drive unit into linear reciprocating motion to realize the reciprocating movement of the power push rod, resulting in high transmission efficiency. In addition, the first transmission assembly with the above structure is compact and easy to integrate.

[0021] In some embodiments, the eccentric shaft and the reduction transmission assembly are both located on the same side of the first gear plate, or the eccentric shaft and the reduction transmission assembly are located on opposite sides of the first gear plate. In the above technical solution, the positions of the reduction transmission assembly and the power push rod can be arranged on the same side or different sides of the first gear plate according to the actual space, so as to make the overall structure of the mixing liquid outlet device more compact and smaller, and also reduce the probability of the delivery pipe being pulled by the moving element.

[0022] In some embodiments, the mixing and dispensing device further includes at least one check valve, which is located at the connection point between the first delivery pipe and the mixing pump, and / or, the check valve is located at the connection point between the second delivery pipe and the mixing pump. In the above technical solution, the check valve reduces the probability of the mixture flowing back into the delivery pipe from the mixing chamber, thereby improving the accuracy of the mixing ratio control of the mouthwash irrigator.

[0023] In some embodiments, the first delivery pipe and the second delivery pipe are connected to the mixing pump via a three-way valve, and a first check valve is provided at the connection point between the three-way valve and the mixing pump. In the above technical solution, the first delivery pipe and the second delivery pipe are connected to the same connecting hole in the mixing chamber via the three-way valve, which can reduce the processing difficulty of the mixing pump and the probability of leakage, and can reduce the probability of backflow of the mixed liquid through the first check valve.

[0024] In some embodiments, a second check valve is provided at the connection point between the three-way component and the second delivery pipe. In the above technical solution, considering that the mixing pump can generate a large pushing force for the mixture, the provision of the second check valve can reduce the probability that the mixture will overflow the first check valve due to high pressure and still flow back to the second delivery pipe, thereby improving the accuracy of the mixture ratio.

[0025] In some embodiments, the mixing and discharging device further includes a raw liquid flow regulating valve, which is connected to a second delivery pipe. In the above technical solution, the mixing and discharging device can further adjust the ratio of the two materials through the raw liquid flow regulating valve to support the adjustable concentration function of the mixed liquid.

[0026] In some embodiments, the mixing and discharging device further includes a raw liquid flow sensor, which is disposed in the second conveying pipe and located at the material inlet end of the second conveying pipe. In the above technical solution, the mixing and discharging device can detect whether the raw liquid is insufficient through the raw liquid flow sensor, and can also determine whether the flow regulating valve is completely closed based on fluctuations in the raw liquid flow detection data.

[0027] Secondly, this disclosure provides a mouthwash irrigator, including a body, a mixing and dispensing device according to any embodiment of the first aspect of this disclosure, a first container, a second container, and a nozzle. The mixing and dispensing device is disposed within the body; both the first and second containers are disposed within the body, with the first container connected to a first delivery pipe and the second container connected to a second delivery pipe; the nozzle is disposed on one side of the body and connected to the dispensing port. In the above technical solution, the mouthwash irrigator has the same technical effects as the aforementioned mixing and dispensing device. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this disclosure and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 is a schematic diagram of the structure of a mouthwash irrigator shown in some embodiments of this disclosure;

[0030] Figure 2 is a partial structural schematic diagram of a mouthwash irrigator shown in some embodiments of this disclosure;

[0031] Figure 3 is a first-view schematic diagram of a mixing and discharging device shown in some embodiments of this disclosure;

[0032] Figure 4 is a first-view exploded view of a speed reduction transmission assembly shown in some embodiments of this disclosure;

[0033] Figure 5 is a second-view exploded view of a speed reduction transmission assembly shown in some embodiments of this disclosure;

[0034] Figure 6 is a partial structural schematic diagram of a speed reduction transmission assembly shown in some embodiments of this disclosure;

[0035] Figure 7 is an exploded view of a speed reduction transmission assembly shown in some other embodiments of this disclosure;

[0036] Figure 8 is an exploded view of a speed reduction transmission assembly shown in some embodiments of this disclosure;

[0037] Figure 9 is a schematic diagram of the structure of the first transmission component and the mixing pump shown in some embodiments of this disclosure;

[0038] Figure 10 is a second-view schematic diagram of a mixing and discharging device shown in some embodiments of this disclosure;

[0039] Figure 11 is a partial structural schematic diagram of a mixing and discharging device shown in some embodiments of this disclosure;

[0040] Figure 12 is a front view schematic diagram of a mixing and discharging device shown in some embodiments of this disclosure.

[0041] Icons: 1-Mouthwash water flosser; 10-Body; 11-Nozzle; 12-Controller; 13-Battery; 14-First container; 15-Second container; 150-Second dispensing port; 2-Mixing and dispensing device; 21-First delivery pipe; 22-Second delivery pipe; 23-Mixing pump; 231-Mixing pump housing; 232-Power push rod; 230-Dispensing port; 24-Concentrate pump; 240-Concentrate pump housing; 241-Concentrate pump rotor; 25-Drive unit; 26-First transmission Moving component; 260-Coupling gear; 261-First gear disc; 262-Eccentric shaft; 27-Reduction transmission assembly; 270-Gear mounting bracket; 271-Input element; 272-Output element; 273-First stage gear ring; 274-Planetary gear; 2741-First stage gear mating part; 2742-Second stage gear mating part; 275-Bevel gear; 276-Intermediate gear; 277-Transmission worm gear; 280-Three-way element; 281-Check valve; 282-Original fluid flow regulating valve. Detailed Implementation

[0042] The terms “first,” “second,” “third,” etc., are configured only for distinguishing descriptions and do not indicate a sequence number, nor should they be interpreted as indicating or implying relative importance.

[0043] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," not that the structure must be completely horizontal, but can be slightly tilted.

[0044] In the description of this disclosure, it should be noted that the terms "inner", "outer", "left", "right", "upper", "lower", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the disclosed product is in use. They are only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0045] In the description of this disclosure, unless otherwise expressly specified and limited, the terms “set up,” “install,” “connect,” and “link” shall be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection; as a mechanical connection or an electrical connection; as a direct connection or an indirect connection through an intermediate medium; or as a connection within two components.

[0046] The technical solution of this disclosure will now be described in detail with reference to the accompanying drawings.

[0047] A water flosser, also known as a dental irrigator, is an auxiliary tool designed for oral hygiene. Its working principle typically involves filling the water tank with tap water or purified water, then using a pump to draw and pressurize the water to create a high-pressure water flow designed to rinse between teeth and teeth, thus cleaning and caring for the oral cavity. In most water flossers, only a single container is used for water storage, and users add tap water or purified water one or more times to complete the oral cleaning process.

[0048] With the popularization of oral health knowledge, more and more users tend to use mouthwash to maintain oral hygiene. Mouthwash can freshen the breath, inhibit tooth decay, help remove or inhibit the formation of plaque, tartar, or calculus, and improve the health of soft tissues in the mouth for better oral cleaning and care. To simplify the process of mixing mouthwash and purified water, designing a mouthwash irrigator that can mix mouthwash concentrate or effervescent mouthwash with purified water in a fixed ratio and dispense it under pressure has become a key research direction in the field of dental cleaning appliances.

[0049] Please refer to Figures 1 and 2. Figure 1 is a structural schematic diagram of a mouthwash irrigator 1 according to some embodiments of this disclosure; Figure 2 is a partial structural schematic diagram of a mouthwash irrigator 1 according to some embodiments of this disclosure. As shown in Figures 1 and 2, this disclosure provides a mouthwash irrigator 1, which may include a body 10, a mixing and dispensing device 2, a first container 14, a second container 15, and a nozzle 11. The mixing and dispensing device 2, the first container 14, and the second container 15 may all be disposed within the body 10. The first container 14 and the second container 15 are each connected to the mixing and dispensing device 2 via a delivery pipe. The nozzle 11 may be disposed on one side of the body 10 and connected to the outlet 230 of the mixing and dispensing device 2.

[0050] Specifically, the body 10 is the basic frame of the entire mouthwash and water flosser 1. It is usually made of durable plastic or metal. The body 10 can be designed as a handheld or tabletop unit for user convenience. The nozzle 11 is usually connected to one end of the body 10. The nozzle 11's outlet is connected to the outlet 230 of the mixing and dispensing device 2 to spray the mixed material (usually in liquid form) at high pressure. The nozzle 11's outlet can be configured with different structures according to different spray patterns, such as a single hole for a fine water jet pattern or multiple dense small holes for a diffused spray pattern, to adapt to different cleaning needs.

[0051] The first container 14 or the second container 15 is configured to store a single material to be mixed (typically in liquid, paste, 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 detachably connected to the body 10 for convenient user replenishment. In some embodiments, the outer surface of the first container 14 or the second container 15 may have an inlet (e.g., the top of the second container 15 is a second inlet 150). The first container 14 or the second container 15 can be a shell-type container or a retractable bag-shaped container.

[0052] The mixing and discharging device 2 is a device configured to mix and output multiple materials evenly. The mixing chamber of the mixing and discharging device 2 is connected to the first container 14 through the first conveying pipe 21, and the mixing chamber of the mixing and 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 both conveyed to the mixing chamber and mixed evenly, and then enter the nozzle 11 through the liquid outlet 230, and are finally output from the spray outlet of the nozzle 11. In some embodiments, the mixing and discharging device 2 can also adjust the spray pressure and spray flow of the mixed materials to improve the spraying effect or cleaning effect of the mixed materials.

[0053] In some embodiments, the mouthwash irrigator 1 further includes a controller 12 and a battery 13. The controller 12 and battery 13 are electrically connected and can both be located inside the body 10. The controller 12 can also be electrically connected to the mixing dispensing device 2 to control the start and stop operation of the mixing dispensing device 2. The controller 12 is typically located near the operation panel of the mouthwash irrigator 1. The controller 12 can also be configured to control the dispensing pressure and flow rate of the mixing dispensing device 2 to meet the user's personalized needs. The battery 13 can be a rechargeable lithium battery, which provides power to the mixing dispensing device 2 in the mouthwash irrigator 1 to ensure its long-term operation. In some embodiments, the battery 13 can also be charged and discharged through the controller 12, thereby achieving stable operation of the mouthwash irrigator 1.

[0054] Please refer to Figure 3, which is a first-view schematic diagram of a mixing and discharging device 2 according to some embodiments of the present disclosure. As shown in Figure 3, the present disclosure provides a mixing and discharging device 2, including 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 both the first delivery pipe 21 and the second delivery pipe 22 are connected to the mixing pump 23. The raw liquid pump 24 is connected to the second delivery pipe 22 and is configured 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 located 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. The transmission ratio of the reduction transmission assembly 27 is greater than the transmission ratio of the first transmission assembly 26.

[0055] Specifically, the mixing pump 23 refers to a pump body capable of uniformly mixing materials drawn from the first delivery pipe 21 and the second delivery pipe 22, and pressurizing and conveying the mixture to the nozzle 11 or other outlet through the outlet 230. The first delivery pipe 21 is configured to contain materials output from the first container 14 that have not yet flowed to the mixing pump 23; the second delivery pipe 22 is configured to contain materials output from the second container 15 that have not yet flowed to the mixing pump 23. The raw material pump 24 refers to a pump body capable of pumping materials in the second delivery pipe 22 toward the mixing pump 23 to ensure that the materials smoothly enter the mixing pump 23 for mixing. The drive unit 25 refers to a power element, such as a drive motor, configured to provide power to drive the first transmission assembly 26 and the reduction transmission assembly 27. The first transmission assembly 26 refers to a transmission structure capable of transmitting the power output from the drive unit 25 to the mixing pump 23, enabling it to draw in materials or pressurize and pump the mixture. The speed reduction transmission assembly 27 refers to the transmission structure that can transmit the power output from the drive unit 25 to the raw liquid pump 24, so that the raw liquid pump can operate at a lower pumping speed.

[0056] In this embodiment, the second container 15 is typically configured to store concentrated liquid to be diluted, effervescent granules to be dissolved, powdered solvents, etc., prepared as mouthwash ingredients or mouthwash concentrate for rinsing the oral cavity. For example, the second container 15 may store mouthwash disinfectant to be diluted, mouthwash anesthetic, mouthwash cleaning paste to be dissolved, mouthwash concentrate to be diluted, or mouthwash effervescent granules to be dissolved; correspondingly, the second delivery pipe 22 and the concentrate pump 24 are both configured to deliver the materials in the second container 15. The first container 14 may typically store liquids prepared for diluting or dissolving materials, solvents or solutions prepared for mixing, etc., for example, the first container 14 may store purified water, saline solution, etc.; correspondingly, the first delivery pipe 21 is configured to deliver the materials in the first container 14. After the mixing pump 23 draws the materials in the first container 14 and the materials in the second container 15 into the mixing chamber and mixes them, it outputs the mixture through the outlet 230 and the nozzle 11 with increased pressure to achieve a more thorough cleaning, disinfection, or spraying function. The mixing and dispensing device provided in this embodiment can be configured not only as a mouthwash irrigator, but also as other devices that need to achieve dilution, dissolution and mixing functions, such as a sterilizer, humidifier, rinsing machine, etc.

[0057] For ease of understanding, the following embodiments are described using the example of the first container 14 being configured to store purified water and the second container 15 being configured to store mouthwash concentrate. However, the mixing and dispensing device provided in the embodiments of this disclosure is not limited to the mixing of multiple liquids or the mixing of liquids and solids. It can also achieve more diverse material mixing and output, which will not be described in detail here.

[0058] The transmission ratio refers to the ratio of the rotational speeds of the input element 271 to the output element 272 in the reduction gear assembly 27 or the first transmission assembly 26. When the mouthwash concentrate and purified water need to be diluted and mixed in a non-uniform ratio (e.g., a lower mouthwash concentration ratio), the transmission ratio of the reduction gear assembly 27 should be greater than that of the first transmission assembly 26. This allows the concentrate pump 24, configured to pump the mouthwash concentrate, to pump the liquid at a reduced speed relative to the mixing pump 23. Furthermore, both the first transmission assembly 26 and the reduction gear assembly 27 are connected to the same output shaft of the drive unit 25 and are located on the same side of the drive unit 25. This improves the overall compactness and spatial layout of the mixing and dispensing device 2. Additionally, the single-shaft output power of the drive unit 25 results in a lower load pressure compared to dual-shaft output power, and the operation and power output of the drive unit 25 are more stable.

[0059] In this embodiment, 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 pipe 21, and the concentrate pump 24 draws mouthwash concentrate from the second container 15 through the second delivery pipe 22. In related technologies, mouthwash irrigators typically employ a structure where two drive motors drive two pumps respectively. This dual-motor independent control of the pump operation suffers from circuit delay issues and mechanical quality deviations, which can easily affect the synchronous operation of the two pumps, resulting in a large error in the concentration of the output mouthwash mixture.

[0060] In this embodiment, the first transmission component 26 and the reduction transmission component 27 are positioned on the same side of the drive unit 25, making the spatial layout of the mixing and discharging device 2 more reasonable and the overall structure more compact. This facilitates the miniaturization of the overall structure of the mixing and discharging device 2 and makes the assembly process more convenient. Since both the first transmission component 26 and the reduction transmission component 27 are connected to the same drive unit 25, the flow rate error of the materials delivered from the first conveying pipe 21 and the second conveying pipe 22 to the mixing pump 23 is reduced, reducing power source control deviation and making the actual mixing concentration of the liquid more accurate. The connection of the two transmission components to the same drive unit 25 and their placement on the same side of the drive unit 25 reduces the output load of the drive unit 25 and improves the operational stability of the mixing and discharging device 2. Furthermore, by differentiating the transmission ratios of the reduction transmission component 27 and the first transmission component 26, the mixing and discharging device 2 can achieve non-uniform mixing of two materials, thereby realizing the function of diluting and quantitatively distributing high-concentration solutions, making the mixing and discharging device 2 more practical and applicable.

[0061] In some embodiments, the reduction transmission assembly 27 includes an input element 271 and an output element 272, which can achieve reduction transmission through gear engagement. Specifically, the input element 271 can be connected to the drive unit 25, and the output element 272 can be connected to the raw liquid pump 24. In this embodiment, the input element 271 and the output element 272 achieve power transmission and reduction transmission through gear engagement, 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 mixing and dispensing device 2 in controlling the proportion of the mixed liquid.

[0062] Please refer to Figures 4 and 5. Figure 4 is a first-view exploded view of the speed reduction transmission assembly 27 shown in some embodiments of this disclosure; Figure 5 is a second-view exploded view of the speed reduction transmission assembly 27 shown in some embodiments of this disclosure. As shown in Figures 4 and 5, the speed reduction transmission assembly 27 also includes at least one planetary gear 274, which is rotatably disposed between the input element 271 and the output element 272, but its position remains unchanged. In the embodiments of this disclosure, the use of a planetary gear structure for speed reduction transmission between the input element 271 and the output element 272 is beneficial for structural simplification and compactness, and can also improve transmission efficiency, transmission accuracy and transmission stability, making the mixing liquid dispensing device 2 and the mouthwash irrigator 1 operate more quietly and stably.

[0063] In other embodiments of this disclosure, the input element can be a gear configuration, with multiple identical planetary gears 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 the others, and the input element can mesh with each planetary gear. The input element, when rotating, drives each planetary gear to rotate. The output element is a ring gear configuration, with its teeth surrounding the outside of all planetary gears, and the output element meshes with the planetary gears. When the planetary gears rotate, they can drive the output element, which has a larger diameter than the input element, to rotate. The rotational speed of the output element is lower than that of the input element, thereby realizing the speed reduction function of the reduction gear assembly.

[0064] As shown in Figures 4 and 5, in some embodiments, the reduction gear assembly 27 further includes a primary gear ring 273, which is rotatably mounted on the gear mounting bracket 270. The primary gear ring 273 is coaxially connected to the input element 271 and rotates synchronously. Multiple identical planetary gears 274 are disposed within the primary gear ring 273. The planetary gears 274 are independent of each other and all mesh with the primary gear ring 273. The output element 272 is also a gear ring configuration and meshes with each planetary gear 274. When the input element 271 rotates, the primary gear ring 273 rotates synchronously with the input element 271, driving the planetary gears 274 to rotate. The planetary gears 274, in turn, 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 realizing the reduction gear function of the reduction gear assembly 27.

[0065] Please refer to Figure 6, which is a partial structural schematic diagram of the speed reduction transmission assembly 27 shown in some embodiments of this disclosure. Referring to Figures 4 to 6, the planetary gear 274 includes a primary gear meshing portion 2741 and a secondary gear meshing portion 2742 coaxially fixed together. The diameter of the primary gear meshing portion 2741 is larger than the diameter of the secondary gear meshing portion 2742. Specifically, the speed reduction transmission assembly 27 also includes a primary gear ring 273 coaxially connected to and rotating synchronously with the input element 271. The primary gear ring 273 is rotatably mounted on a gear mounting bracket and meshes with the primary gear meshing portion 2741. The output element 272 is a secondary gear ring, which meshes with the secondary gear meshing portion 2742.

[0066] In this embodiment, multiple planetary gears 274 can be provided, and they are evenly distributed circumferentially within the primary gear ring 273. When the input element 271 rotates, the primary gear ring 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 is a primary reduction transmission. When the planetary gears 274 rotate, the secondary gear engagement part 2742 rotates synchronously with the primary gear engagement part 2741. Since the diameter of the secondary gear engagement part 2742 is smaller than that of the primary gear engagement part 2741, and the diameter of the secondary gear disk is larger than that of the secondary gear engagement part 2742, the secondary gear disk rotates at a reduced speed under the drive of the secondary gear engagement part 2742. The transmission from the planetary gears 274 to the output element 272 is a secondary reduction transmission.

[0067] In the above technical solution, the planetary gears 274 with multi-stage tooth engagement parts and different diameters enable the reduction transmission assembly 27 to achieve multi-stage reduction, thereby achieving a larger reduction ratio. That is, the mixing and dispensing device 2 can achieve the material mixing function with greater differences in the amount of materials involved in the mixing, more extreme ratios, and lower mouthwash mixing concentration (for example, it can achieve a 1:100 ratio of mouthwash concentrate to purified water). The coaxially fixed primary tooth engagement part 2741 and secondary tooth engagement part 2742 make the overall structure of the reduction transmission assembly 27 more compact and simple.

[0068] In other embodiments of this disclosure, in the reduction gear assembly, the planetary gear can also drive the raw material pump in a structure that revolves around the input element and rotates on its own axis (i.e., a planetary gear train). The output element is a planetary gear, which is rotatably mounted on one side of the input element; when the input element rotates, the planetary gear can rotate around the input element. Specifically, the reduction gear assembly can also include an intermediate gear ring coaxially arranged and fixed with the input element. The planetary gear meshes with the intermediate gear ring, and the planetary gear is connected to the input element through a hinge (planet carrier). When the input element rotates, the input element drives the planetary gear to rotate around the input element through the hinge, and the planetary gear meshes with the intermediate gear ring during the rotation around the input element. Through the cooperation with the intermediate gear ring, 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 gear function of the reduction gear assembly.

[0069] Please refer to Figure 7, which is an exploded view of the speed reduction transmission assembly 27 shown in some other embodiments of this disclosure. As shown in Figure 7, the speed reduction transmission assembly 27 may further include a bevel gear 275 and an intermediate gear 276, which are coaxially and fixedly connected. The output element 272 of the speed reduction transmission assembly 27 is an output gear disk, and the input element 271 of the speed 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 disk.

[0070] In this embodiment, when the input element 271 rotates, the bevel gear 275 cooperating with the input element 271 rotates accordingly. The intermediate gear 276, which rotates synchronously with the bevel gear 275, drives the output gear disk meshing with the intermediate gear 276 to decelerate and rotate during its 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, allowing for more efficient use of the lateral space of the mixing and discharging device 2, and resulting in a more reasonable and compact structural layout. Furthermore, referring to the embodiment shown in Figure 6, by adjusting 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 and meeting the requirements for mixing materials with more extreme proportions.

[0071] Please refer to Figure 8, which is an exploded view of the speed reduction transmission assembly 27 shown in some embodiments of this disclosure. As shown in Figure 8, the input element 271 is a transmission worm gear, the output element 272 is an output gear disk, and the speed reduction transmission assembly 27 also includes a transmission worm wheel 277 and an intermediate gear 276, which are coaxially fixedly connected; the transmission worm gear meshes with the transmission worm wheel 277, and the intermediate gear 276 meshes with the output gear disk.

[0072] In this embodiment, when the transmission worm rotates, the transmission worm wheel 277, which cooperates with the transmission worm, rotates accordingly. The intermediate gear 276, which rotates synchronously with the transmission worm wheel 277, drives the output gear disk meshing with the intermediate gear 276 to decelerate and rotate during its rotation. In the above technical solution, the cooperation of the worm wheel and worm allows the reduction transmission assembly 27 to support a larger reduction ratio and has a self-locking function. The arrangement of the transmission worm wheel 277 and the intermediate gear 276 allows the reduction transmission assembly 27 to realize the change of transmission direction, and its lateral space can be utilized more efficiently, resulting in a more reasonable and compact structural layout. Furthermore, referring to the embodiment shown in Figure 6, by setting the diameter of the transmission worm wheel 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.

[0073] In other embodiments of this disclosure, the speed reduction transmission assembly includes an input element and an output element, which can be connected by a transmission belt or a transmission chain to achieve speed reduction. Specifically, the input element is connected to the drive unit, and the output element is connected to the raw material pump. The speed reduction between the input element and the output element is achieved through the diameter difference between multiple pulleys corresponding to the transmission belt, or through the diameter difference between multiple sprockets corresponding to the transmission chain. In the above technical solution, the speed reduction transmission between the input element and the output element is achieved through the cooperation of a transmission belt or transmission chain, which enables the speed reduction transmission assembly to have greater flexibility in spatial layout and overload protection capability. In addition, the speed reduction transmission assembly using a transmission belt or transmission chain is easy to install and has lower cost, and the speed reduction transmission assembly using a transmission belt also has shock absorption and buffering capabilities.

[0074] Referring to Figures 3 to 8, the concentrate pump 24 may include a concentrate pump housing 240 and at least one concentrate pump rotor 241, with the concentrate pump rotor 241 rotatably disposed within the concentrate pump housing 240. Specifically, a portion of the second delivery pipe 22 is housed between the concentrate pump housing 240 and the concentrate pump rotor 241. The concentrate pump rotor 241 is fixedly connected to one side of the output element 272 and rotates synchronously with the output element 272. The concentrate pump rotor 241 and the input element 271 may be located on opposite sides of the output element 272. Multiple concentrate pump rotors 241 may be evenly distributed circumferentially around the central axis of the output element 272. When the concentrate pump 24 is assembled, the minimum distance between the concentrate pump rotor 241 and the inner wall of the concentrate pump housing 240 is less than the diameter of the second delivery pipe 22, so as to achieve the squeezing of the second delivery pipe 22 by the concentrate pump rotor 241 and the pushing of the mouthwash concentrate in the second delivery pipe 22.

[0075] In this embodiment, the concentrate pump rotor 241, rotating in a fixed direction with the output element 272, squeezes the second delivery pipe 22 to pump material toward the mixing pump 23. The rotation direction of the concentrate pump rotor 241 is the same as that of the output element 272, and both directions ensure that the mouthwash concentrate in the second delivery pipe 22 is pumped into the mixing pump 23. In this technical solution, the concentrate pump rotor 241 pumps material toward the mixing pump 23 by squeezing the second delivery pipe 22, which reduces or even eliminates the probability of contamination of the material in the second delivery pipe 22. Its structure is compact and simple, suitable for pumping materials of various viscosities and forms, and provides more accurate and reliable material flow.

[0076] Please refer to Figure 9, which is a schematic diagram of the structure of the first transmission assembly 26 and the mixing pump 23 shown in some embodiments of this disclosure. As shown in Figure 9, 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.

[0077] Furthermore, the vertical distance between the power push rod 232 and the liquid outlet 230 changes as the power push rod 232 moves. However, no matter how the power push rod 232 moves, the active area of ​​the power push rod 232 will not cover the connection position between 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 connection port and the liquid outlet 230.

[0078] In the above technical solution, the mixing pump 23, which draws and pushes materials by reciprocating the power push rod 232, can be regarded as a piston pump. The piston pump can generate a large pushing force, thereby achieving a higher flow rate output of the mixed materials, 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 precise and stable flow output, and has a strong self-priming ability. It has a wide range of applications, high reliability, simple structure, and is easy to maintain.

[0079] In some embodiments, the mixing pump 23 may further include a homogenizing element disposed within the mixing chamber. The outlet 230 and the power push rod 232 are located on opposite sides of the homogenizing element, and the homogenizing element has at least one through-hole for material to pass through. Furthermore, the connection point between the first conveying pipe 21 and the second conveying pipe 22 may be located between the homogenizing element and the outlet 230. In the above technical solution, the homogenizing element with the through-hole can turbulently flow the material (usually a liquid) just entering or about to leave the mixing chamber, thereby making the two materials more uniformly and thoroughly mixed together.

[0080] In some embodiments, the first transmission assembly 26 may include a coupling gear 260, a first gear disk 261, and an eccentric shaft 262. The coupling gear 260 is coaxially fixed to the output shaft of the drive unit 25 and meshes with the first gear disk 261. The eccentric shaft 262 is disposed on one side of the first gear disk 261, and the other end of the power push rod 232 is sleeved on the eccentric shaft 262 and is rotatable relative to the eccentric shaft 262. Furthermore, the input element 271 of the reduction transmission assembly 27 is coaxially fixed to the first gear disk 261 and is rotatable synchronously with the first gear disk 261.

[0081] In this embodiment, the power of the drive unit 25 is transmitted through the output shaft to the coupling gear 260, which is coaxially fixed to the output shaft. The power is then transmitted through the meshing of the coupling gear 260 with the first gear disc 261 to the eccentric shaft 262, 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 disc 261. The reduction transmission assembly 27 further reduces the speed based on the rotational speed of the first gear disc 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, through the setting of the eccentric shaft 262, can convert the rotational motion output by the drive unit 25 into a linear reciprocating motion to realize the reciprocating movement of the power push rod 232. Furthermore, the first transmission assembly 26 with the above structure is compact, easy to integrate, and has high transmission efficiency.

[0082] Please refer to Figure 10, which is a second-view schematic diagram of the mixing and discharging device 2 according to some embodiments of this disclosure. As shown in Figure 10, the eccentric shaft 262 and the power push rod 232 can both be located on the same side of the first gear disk 261 along with the reduction transmission assembly 27. Alternatively, in other embodiments, the eccentric shaft 262 and the power push rod 232 can also be located on opposite sides of the first gear disk 261 along with the reduction transmission assembly 27. In the above technical solutions, the reduction transmission assembly 27 and the power push rod 232 can be arranged on the same side or different sides of the first gear disk 261 according to the actual space, so that the overall structure of the mixing and discharging device 2 can be reasonably arranged based on limited space, and is more compact, and can also reduce the probability of the conveying pipe being pulled by moving parts.

[0083] Please refer to Figure 11, which is a partial structural schematic diagram of the mixing and discharging device 2 shown in some embodiments of this disclosure. As shown in Figures 10 and 11, 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 connection port through a three-way element 280. Specifically, a one-way valve can be provided at the connection position between the three-way element 280 and the mixing pump 23; or, a first one-way valve is provided at the connection position (connection port) between the three-way element 280 and the mixing pump 23, a second one-way valve is provided at the connection position between the three-way element 280 and the second delivery pipe 22, and a third one-way valve is provided at the connection position between the three-way element 280 and the first delivery pipe 21.

[0084] In the above technical solution, the first delivery pipe 21 and the second delivery pipe 22 are connected to the same 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 backflow of the mixture through the one-way valve 281. Furthermore, considering that the mixing pump 23 can generate a large mixing force, the setting of the second one-way valve or the third one-way valve can further reduce the probability that the mixture will still flow back into the second delivery pipe 22 or the first delivery pipe 21 due to the large pressure breaking through the first one-way valve, thereby improving the accuracy of the mixing ratio.

[0085] In other embodiments, the first delivery pipe 21 and the second delivery pipe 22 may be connected at different locations on the mixing pump 23. The mixing outlet device 2 also includes at least one check valve 281, which may be located at the connection point between the first delivery pipe 21 and the mixing pump 23, and / or, the check valve 281 may be located at the connection point between the second delivery pipe 22 and the mixing pump 23. Furthermore, check valves 281 may be provided at the connection ports of the first delivery pipe 21 and the second delivery pipe 22 respectively connecting to the mixing pump 23. In the above technical solution, the setting of the check valve 281 reduces the probability of the mixture 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 ratio.

[0086] Please refer to Figure 12, which is a front view schematic diagram of the mixing and discharging device 2 shown in some embodiments of this disclosure. As shown in Figure 12, the mixing and discharging device 2 may further include a raw liquid flow regulating valve 282, which is connected to the second conveying pipe 22. Specifically, the raw liquid flow regulating valve 282 changes the cross-sectional area of ​​the flow channel by adjusting the valve opening, thereby changing the flow velocity of the medium through the valve. The raw liquid flow regulating valve 282 can adjust and balance the flow rate of the liquid in the second conveying pipe 22 through the cooperation of a manual regulating valve group or an electric regulating valve group and an automatic balancing valve group. The manual regulating valve group or the electric regulating valve group is configured to set the flow rate, and the automatic balancing valve group is configured to maintain a constant flow rate. In the above technical solution, the mixing and discharging device 2 can further adjust the ratio of the two materials through the raw liquid flow regulating valve 282 to realize the adjustable concentration function of the mixed liquid of the mixing and discharging device 2, thereby improving the practicality of the mixing and discharging device 2.

[0087] In some embodiments, the mixing and dispensing device 2 may further include a concentrate 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, adjacent to or within the second container 15. In the above technical solution, the mixing and dispensing device 2 or the mouthwash irrigator 1 can determine whether the concentrate (mouthwash concentrate) is insufficient based on the flow detection data fed back by the concentrate flow sensor, and promptly remind the user to replenish the concentrate. It can also determine whether the flow regulating valve is completely closed based on fluctuations in the concentrate flow detection data.

[0088] Furthermore, the mouthwash irrigator 1 may also include a water level detection sensor, which may be located 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 mixing and dispensing device 2 may also include a first flow sensor, which may be located in the first delivery pipe 21 and at the material suction end of the first delivery pipe 21 to detect whether the liquid in the first container 14 is insufficient.

[0089] The above description is merely an embodiment of this disclosure and is not intended to limit this disclosure. Various modifications and variations can be made to this disclosure by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure. Industrial applicability

[0090] The present invention discloses a mixing dispensing device and a mouthwash irrigator, which realizes the function of diluting and quantitatively mixing high-concentration solutions, and alleviates the problems of large size and unstable operation of existing mixing dispensing devices. At the same time, the mixing dispensing device has the advantages of compact structure, reasonable layout, stable operation, stronger practicality and wider application range.

Claims

1. A mixing and discharging device, characterized in that, include: The system includes a mixing pump, a first delivery pipe, and a second delivery pipe. The mixing pump has a liquid outlet, and both the first delivery pipe and the second delivery pipe are connected to the mixing pump. A raw material pump is connected to the second delivery pipe and is configured to pump the material in the second delivery pipe toward the mixing pump. The system includes a drive unit, a first transmission assembly, and a reduction transmission assembly. Both the first transmission assembly and the reduction transmission assembly are connected to the drive unit and located 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. The transmission ratio of the reduction transmission assembly is greater than that of the first transmission assembly.

2. The mixing and discharging device according to claim 1, characterized in that, The speed reduction transmission assembly includes an input element and an output element. The input element and the output element are connected by gears to reduce speed. The input element is connected to the drive unit, and the output element is connected to the raw liquid pump.

3. The mixing and discharging device according to claim 2, characterized in that, The speed reduction transmission assembly also includes at least one planetary gear, which is rotatably disposed between the input element and the output element.

4. The mixing and discharging device according to claim 3, characterized in that, The planetary gear includes a primary gear engagement portion and a secondary gear engagement portion that are coaxially fixed together, wherein the diameter of the primary gear engagement portion is larger than the diameter of the secondary gear engagement portion; The speed reduction transmission assembly also includes a primary gear ring that is coaxially connected to and rotates synchronously with the input element, the primary gear ring meshing with the primary gear mating part; the output element is a secondary gear ring, the secondary gear ring meshing with the secondary gear mating part.

5. The mixing and discharging device according to any one of claims 2-4, characterized in that, The output element is a planetary gear, which is rotatably mounted on one side of the input element; when the input element rotates, the planetary gear can rotate around the input element.

6. The mixing and discharging device according to any one of claims 2-5, characterized in that, The speed reduction transmission assembly further includes a bevel gear and an intermediate gear, the bevel gear and the intermediate gear being coaxially and fixedly connected; the output element is an output gear disk, the bevel gear meshes with the input element, and the intermediate gear meshes with the output gear disk.

7. The mixing and discharging device according to any one of claims 2-6, characterized in that, The speed reduction transmission assembly further includes a transmission worm gear and an intermediate gear, the transmission worm gear and the intermediate gear being coaxially and fixedly connected; the input element is a transmission worm, the output element is an output gear, the transmission worm meshes with the transmission worm gear, and the intermediate gear meshes with the output gear.

8. The mixing and discharging device according to any one of claims 1-7, characterized in that, The speed reduction transmission assembly includes an input element and an output element. The input element and the output element are connected by a transmission belt or transmission chain for speed reduction transmission. The input element is connected to the drive unit, and the output element is connected to the raw liquid pump.

9. The mixing and discharging device according to any one of claims 1-8, characterized in that, The raw material pump includes a raw material pump housing and a raw material pump rotor. The raw material pump rotor is rotatably disposed within the raw material pump housing. A portion of the second delivery pipe is housed between the raw material pump housing and the raw material pump rotor. When the raw material pump rotor rotates, it squeezes the second delivery pipe to pump material toward the mixing pump.

10. The mixing and discharging device according to any one of claims 1-8, characterized in that, 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.

11. The mixing and discharging device according to claim 10, characterized in that, The mixing pump also includes a homogenizing element, which is disposed in the mixing chamber. The liquid outlet and the power push rod are located on opposite sides of the homogenizing element, and the homogenizing element is provided with at least one through hole.

12. The mixing and discharging device according to claim 10 or 11, characterized in that, The first transmission assembly includes a coupling gear, a first gear plate, and an eccentric shaft. The coupling gear is coaxially fixed to the drive unit and meshes with the first gear plate. The eccentric shaft is located on one side of the first gear plate, and the other end of the power push rod is sleeved on the eccentric shaft.

13. The mixing and discharging device according to claim 12, characterized in that, The eccentric shaft and the speed reduction transmission assembly are both located on the same side of the first gear plate, or the eccentric shaft and the speed reduction transmission assembly are respectively located on opposite sides of the first gear plate.

14. The mixing and discharging device according to any one of claims 1-8, characterized in that, The mixing and discharging device further includes at least one check valve, which is located at the connection point between the first delivery pipe and the mixing pump, and / or, the check valve is located at the connection point between the second delivery pipe and the mixing pump.

15. The mixing and discharging device according to any one of claims 1-8, characterized in that, The first delivery pipe and the second delivery pipe are connected to the mixing pump through a three-way component, and a first check valve is provided at the connection position between the three-way component and the mixing pump.

16. The mixing and discharging device according to claim 15, characterized in that, A second check valve is provided at the connection point between the three-way component and the second delivery pipe.

17. The mixing and discharging device according to any one of claims 1-8, characterized in that, The mixing and discharging device also includes a raw liquid flow regulating valve, which is connected to the second delivery pipe.

18. The mixing and discharging device according to claim 17, characterized in that, The mixing and discharging device also includes a raw liquid flow sensor, which is located in the second conveying pipe at the material inhalation end of the second conveying pipe.

19. A mouthwash and water flosser, characterized in that, include: Organism; The mixing and discharging device according to any one of claims 1-18, wherein the mixing and discharging device is disposed within the body of the machine; The first container and the second container are both located inside the machine body. The first container is connected to the first conveying pipe, and the second container is connected to the second conveying pipe. The nozzle is located on one side of the machine body and is connected to the liquid outlet.

Images