Liquid mixing spray device and mouthwash oral irrigator

Abstract

To provide a liquid mixing and ejecting device and a mouthwash oral irrigator that can solve the problem of unstable operation due to the relatively large volume of the liquid mixing and ejecting device. [Solution] The liquid mixing and spraying device 2 includes a mixing pump 23, a first feed pipe 21, a second feed pipe 22, a concentrate pump 24, a drive unit 25, a first transmission assembly 26, and a reduction transmission assembly 27. The mixing pump has a liquid outlet 230, the first feed pipe and the second feed pipe are both connected to the mixing pump, the concentrate pump is connected to the second feed pipe and is configured to pump the material in the second feed pipe to the mixing pump, the first transmission assembly and the reduction transmission assembly are both connected to the drive unit and are installed 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 concentrate pump, and the transmission ratio of the reduction transmission assembly is greater than that of the first transmission assembly.

Description

[Technical Field]

[0001] The present application relates to the technical field of tooth cleaning devices, and more particularly to liquid mixing and dispensing devices and mouthwash oral irrigators. [Background technology]

[0002] Oral irrigators, also known as water flossers, are auxiliary tools for oral hygiene. Mouthwash irrigators use a pump to pump and mix pure water and mouthwash, and then dispense the mixture through a nozzle. The pump for pumping pure water and the pump for pumping mouthwash are usually controlled by separate drive units. Considering the overall weight requirements of mouthwash irrigators, battery capacity settings, and mechanical quality consistency requirements, a design that uses a single drive motor to synchronously pump and mix the two materials has become an important research direction for the structural design of mouthwash irrigators.

[0003] In the related art, there are mouthwash oral irrigators that use a two-shaft output drive unit to simultaneously support the operation of two pumps, but because two pumps and corresponding transmission assemblies are installed on both sides of the drive unit, the mouthwash oral irrigator has an irrational structural layout and a relatively large overall volume. Furthermore, when the two-shaft output drive unit simultaneously supports the transmission of the transmission assemblies on both sides and the operation of the pumps, the output load is relatively large, and the operation of the mouthwash oral irrigator is unstable. Furthermore, in the related art, most mouthwash oral irrigators can only pump and mix equal amounts of mouthwash and pure water, and cannot support mixing unequal amounts of concentrated concentrate and pure water. Summary of the Invention [Problem to be solved by the invention]

[0004] The present application aims to provide a liquid mixing and spraying device and a mouthwash oral irrigator that can improve the problems of the liquid mixing and spraying devices in the prior art, such as their relatively large volume, irrational structural layout, and unstable operation. [Means for solving the problem]

[0005] An embodiment of the present application is realized as follows.

[0006] In a first aspect, the present application provides a liquid mixing and spraying device, the liquid mixing and spraying device including a mixing pump, a first feed pipe, a second feed pipe, a stock liquid pump, a drive unit, a first transmission assembly, and a reduction transmission assembly, the mixing pump has a liquid outlet, the first feed pipe and the second feed pipe both communicate with the mixing pump, the stock liquid pump is connected to the second feed pipe and configured to pump material in the second feed pipe to the mixing pump, the first transmission assembly and the reduction transmission assembly are both connected to the drive unit and installed 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 stock liquid pump, the transmission ratio of the reduction transmission assembly is greater than that of the first transmission assembly.

[0007] In the above technical solution, by placing the first transmission assembly and the reduction transmission assembly on the same side of the drive unit, the spatial layout of the liquid mixing and spraying apparatus is more reasonable, the overall structure is more compact, contributing to the miniaturization of the entire structure of the liquid mixing and spraying apparatus and making the assembly process easier. By connecting the first transmission assembly and the reduction transmission assembly to the same drive unit, the control error when the first feed pipe and the second feed pipe deliver material to the mixing pump at a specific amount and ratio is reduced, the control deviation of the power source is reduced, and the actual mixed concentration of the mixed liquid is more accurate. By connecting the two transmission assemblies to the same drive unit and placing them on the same side of the drive unit, the output load of the drive unit is reduced and the operational stability of the liquid mixing and spraying apparatus is improved. Furthermore, by installing a reduction transmission assembly, i.e., by making the transmission ratio of the reduction transmission assembly greater than that of the first transmission assembly, the liquid mixing and jetting device can mix two materials in unequal proportions, thereby realizing the liquid mixing and jetting device's functions of diluting high-concentration solutions and mixing at specific blending ratios, further improving the practicality of the liquid mixing and jetting device and broadening its range of application.

[0008] In some embodiments, the reduction transmission assembly includes an input part and an output part, and the input part and the output part perform reduction transmission by gear meshing, the input part is connected to the drive unit, and the output part is connected to the liquid pump. In the above technical solution, the input part and the output part achieve power transmission and reduction transmission by gear meshing, which can improve the efficiency, stability, and precision of transmission and the precision of reduction control, and can improve the accuracy of the blending ratio control for liquid mixing and spraying.

[0009] In some embodiments, the reduction transmission assembly further includes at least one planetary gear, and the planetary gear is rotatably installed between the input part and the output part. In the above technical solution, the reduction transmission is performed using a planetary gear structure between the input part and the output part, which contributes to simplifying and compacting the structure, and can further improve the efficiency, accuracy and stability of the transmission, thereby making the liquid mixing and spraying device and the mouthwash oral irrigator operate more quietly and stably.

[0010] In some embodiments, the planetary gear includes a first-stage tooth meshing portion and a second-stage tooth meshing portion that are coaxially and fixedly connected, with the diameter of the first-stage tooth meshing portion being larger than that of the second-stage tooth meshing portion. The reduction transmission assembly further includes a first-stage ring gear that is coaxially connected to the input component and rotates synchronously with the input component, with the first-stage ring gear meshing with the first-stage tooth meshing portion, and the output component being a second-stage ring gear that meshes with the second-stage tooth meshing portion. In the above technical solution, the planetary gears with multiple tooth meshing portions and different tooth diameters enable the reduction transmission assembly to achieve multi-stage reduction, thereby achieving a relatively large reduction ratio. The liquid mixing and jetting device can achieve the function of mixing two materials with larger differences in mixing amounts and therefore more extreme blending ratios. The coaxially and fixedly connected first-stage tooth meshing portion and second-stage tooth meshing portion make the overall structure of the reduction transmission assembly more compact and simple.

[0011] In some embodiments, the output component is a planetary gear, and the planetary gear is rotatably mounted on one side of the input component, so that when the input component rotates, the planetary gear rotates around the input component. In the above technical solution, the planetary gear structure is used between the input component and the output component to perform speed reduction transmission, which contributes to simplifying and compacting the structure, and also improves the efficiency, accuracy and stability of transmission, thereby making the liquid mixing and spraying device and the mouthwash oral irrigator operate more quietly and stably.

[0012] In some embodiments, the reduction transmission assembly further includes a bevel gear and an intermediate gear, the bevel gear and the intermediate gear being coaxially fixedly connected, the output part being an output gear disk, the bevel gear meshing with the input part, and the intermediate gear meshing with the output gear disk. In the above technical solution, the installation of the bevel gear and the intermediate gear enables the reduction transmission assembly to realize a change in transmission direction, more efficiently utilize the side space of the reduction transmission assembly, and make the structural layout more reasonable and compact. Furthermore, by setting the diameters of the bevel gear and the intermediate gear, the reduction transmission assembly can achieve multi-stage reduction, thereby supporting a larger reduction ratio and realizing the function of material mixing with more extreme mixing ratios.

[0013] In some embodiments, the input component is a transmission worm, and the reduction transmission assembly further includes a transmission worm gear and an intermediate gear, with the transmission worm gear and the intermediate gear coaxially fixedly connected, and the output component is an output gear disk, with the transmission worm meshing with the transmission worm gear and the intermediate gear meshing with the output gear disk. In the above technical solution, the meshing of the worm gear and the worm allows the reduction transmission assembly to achieve a larger reduction ratio and has an automatic locking function. The installation of the transmission worm gear and the intermediate gear allows the reduction transmission assembly to change the transmission direction, more efficiently utilize the side space of the reduction transmission assembly, and make the overall structural layout more reasonable and compact. Furthermore, by setting the diameters of the transmission worm gear and the intermediate gear, the reduction transmission assembly can achieve multi-stage reduction, thereby supporting a larger reduction ratio and realizing the function of material mixing with more extreme mixing ratios.

[0014] In some embodiments, the reduction transmission assembly includes an input part and an output part, and the input part and the output part are connected by a transmission belt or a transmission chain to achieve reduction transmission, and the input part is connected to the drive unit, and the output part is connected to the concentrate pump. In the above technical solution, the input part and the output part realize reduction transmission by cooperation of the transmission belt or the transmission chain, thereby having more freedom in terms of spatial layout and providing overload protection. In addition, reduction transmission assemblies using transmission by a transmission belt or a transmission chain are easy to install and relatively low cost, and reduction transmission assemblies using a transmission belt have the ability to absorb vibration.

[0015] In some embodiments, the stock solution pump includes a stock solution pump housing and a stock solution pump rotor, the stock solution pump rotor is rotatably installed in the stock solution pump housing, a portion of the second feed pipe is installed between the stock solution pump housing and the stock solution pump rotor, when the stock solution pump rotor rotates, it presses the second feed pipe to pump the material to the mixing pump. In the above technical solution, the stock solution pump rotor presses the second feed pipe to pump the material to the mixing pump, which can reduce or even eliminate the possibility of material contamination, has a compact and simple structure, can accommodate various types of material pumping, has more accurate flow rate control of the pumped material, and is more reliable in pumping the material.

[0016] In some embodiments, the mixing pump includes a mixing chamber and a power push rod, the mixing chamber communicating with the liquid outlet, one end of the power push rod movably installed in the mixing chamber and the other end connected to the first transmission assembly. In the above technical solution, the mixing pump sucks and pushes the material by the reciprocating movement of the power push rod, generating a relatively large pushing pressure on the mixed liquid, thereby achieving a faster flow rate of the mixed material and higher mechanical efficiency. The reciprocating movement of the power push rod allows the mixing pump to achieve a more accurate and stable flow rate of discharge, and has relatively strong self-priming ability, a wide range of applications, high reliability, a simple structure, and easy maintenance.

[0017] In some embodiments, the mixing pump further includes a homogenizing element, the homogenizing element is installed in the mixing chamber, the liquid outlet and the power push rod are respectively located on both sides of the homogenizing element, and the homogenizing element is provided with at least one through-hole. In the above technical solution, the homogenizing element provided with the through-hole plays a role in creating turbulence for the material that has just entered the mixing chamber or the material that is about to leave the mixing chamber, thereby making the two materials more uniform and thorough mixing.

[0018] In some embodiments, the first transmission assembly includes a coupling gear, a first gear disk, and an eccentric shaft, the coupling gear and the drive unit are coaxially fixedly connected, the coupling gear and the first gear disk are meshed, the eccentric shaft is provided on one side of the first gear disk, and the other end of the power push rod is annularly mounted on the eccentric shaft. In the above technical solution, the first transmission assembly can use the eccentric shaft to convert the rotational motion output by the drive unit into a linear reciprocating motion to realize the reciprocating motion of the power push rod, thereby achieving relatively high transmission efficiency. In addition, the first transmission assembly using the above structure has a compact structure and is easy to assemble.

[0019] In some embodiments, the eccentric shaft and the reduction transmission assembly are both installed on the same side of the first gear disc, or the eccentric shaft and the reduction transmission assembly are installed on opposite sides of the first gear disc. In the above technical solutions, the reduction transmission assembly and the power push rod can be arranged on the same side or different sides of the first gear disc according to the actual space, so that the overall structure of the liquid mixing and jetting device is smaller and more compact, and the possibility of the feed pipe being pulled by the moving parts can also be reduced.

[0020] In some embodiments, the liquid mixing and ejecting device further includes at least one check valve, which is installed at the connection point between the first feed pipe and the mixing pump and / or the connection point between the second feed pipe and the mixing pump. In the above technical solution, the installation of the check valve can reduce the possibility of the mixed material in the mixing chamber flowing back into the feed pipe, and improve the accuracy of the mouthwash oral irrigator's control of the blending ratio of the ejected mixed liquid.

[0021] In some embodiments, the first feed pipe and the second feed pipe are connected to the mixing pump by a three-way joint, and a first check valve is installed at the connection point between the three-way joint and the mixing pump. In the above technical solution, the first feed pipe and the second feed pipe are connected to the same communication position of the mixing chamber by a three-way joint, which reduces the difficulty of manufacturing the mixing pump and the possibility of leakage, and the first check valve can reduce the possibility of backflow of the mixed liquid.

[0022] In some embodiments, a second check valve is installed at the connection point between the three-way joint and the second feed pipe. In the above technical solution, considering the relatively large pushing force of the mixing pump on the mixed liquid, the installation of the second check valve can reduce the possibility that the mixed liquid will break through the first check valve and flow back into the second feed pipe under relatively large pressure, thereby improving the accuracy of the blending ratio of the mixed liquid.

[0023] In some embodiments, the liquid mixing and jetting device further includes a liquid concentrate flow rate regulating valve, and the liquid concentrate flow rate regulating valve is connected to the second feed pipe. In the above technical solution, the liquid mixing and jetting device further adjusts the blending ratio of the two materials using the liquid concentrate flow rate regulating valve, thereby making it possible to adjust the concentration of the mixed liquid.

[0024] In some embodiments, the liquid mixing and jetting device further includes a liquid source flow sensor, the liquid source flow sensor is installed in the second feed pipe and located at the material intake end of the second feed pipe. In the above technical solution, the liquid mixing and jetting device can detect whether the liquid source is insufficient by the liquid source flow sensor, and can further determine whether the flow control valve is fully closed according to the fluctuation of the liquid source flow detection data.

[0025] In a second aspect, the present application provides a mouthwash oral irrigator. The mouthwash oral irrigator includes a device main body, a liquid mixing and spraying device according to any one of the embodiments of the first aspect of the present application, a first container, a second container, and a nozzle, the liquid mixing and spraying device is installed within the device main body, the first container and the second container are both installed within the device main body, the first container is connected to the first feed pipe, the second container is connected to the second feed pipe, and the nozzle is provided on one side of the device main body and is connected to a liquid outlet. In the above technical solution, the mouthwash oral irrigator can achieve the same technical effects as the above liquid mixing and spraying device.

[0026] In order to more clearly explain the technical solutions in the embodiments of the present application, the drawings used in the embodiments will be briefly described below. The drawings described are only for illustrating some embodiments of the present application and are not intended to limit the scope. Those skilled in the art can obtain other related drawings based on these drawings without using inventive abilities. [Brief explanation of the drawings]

[0027] [Figure 1] FIG. 1 is a schematic diagram of a mouthwash oral irrigator according to some embodiments of the present application. [Figure 2] FIG. 1 is a schematic partial structural diagram of a mouthwash oral irrigator according to some embodiments of the present application. [Figure 3] 1 is a schematic diagram of a liquid mixing and jetting device according to some embodiments of the present application, viewed from a first angle. [Figure 4] 1 is a schematic exploded view of a reduction transmission assembly according to some embodiments of the present application, viewed from a first angle. [Figure 5]2 is a schematic exploded view of a reduction transmission assembly according to some embodiments of the present application, viewed from a second angle. FIG. [Figure 6] 1 is a schematic partial structural view of a reduction transmission assembly according to some embodiments of the present application. [Figure 7] 10 is a schematic exploded view of a reduction transmission assembly according to some other embodiments of the present application. [Figure 8] 10 is a schematic exploded view of a reduction transmission assembly according to some other embodiments of the present application. [Figure 9] FIG. 2 is a schematic diagram of a first transmission assembly and a mixing pump according to some embodiments of the present application. [Figure 10] 2 is a schematic diagram of a liquid mixing and jetting device according to some embodiments of the present application, viewed from a second angle. FIG. [Figure 11] 1 is a schematic partial structural view of a liquid mixing and jetting device according to some embodiments of the present application. [Figure 12] 1 is a schematic front view of a liquid mixing and jetting device according to some embodiments of the present application. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0028] Terms such as "first," "second," "third," etc. are for descriptive purposes only and do not represent an order of arrangement or imply or express relative importance.

[0029] Furthermore, terms such as "horizontal," "vertical," and "gravity direction" do not mean that a component is placed absolutely horizontally or vertically, but may be slightly tilted. For example, "horizontal" means that the orientation of the component is merely more horizontal than "vertical," and does not necessarily require that the component be completely horizontal, but may be slightly tilted.

[0030] In the description of this application, directions or positional relationships expressed by terms such as "inside," "outside," "left," "right," "up," and "down" are based on the drawings or are the normal arrangement directions or positional relationships of the products related to this application, and are intended to simply and concisely explain this application, and do not expressly or imply that the relevant elements or components necessarily have a specific orientation, or are configured or operated in a specific direction, and therefore do not limit this application.

[0031] In the description of this application, unless otherwise specified, the terms "installation," "mounting," "coupling," and "connection" should be understood in a broad sense. For example, they may refer to a fixed connection, a detachable connection, or an integral connection. They may also refer to a mechanical connection or an electrical connection. They may also refer to a direct connection, an indirect connection via an intermediate, or communication between the interiors of two elements.

[0032] The term "and / or" as used herein represents a relationship between related objects and represents a three-way relationship, such as A and / or B, where only A is present, both A and B are present, or only B is present.

[0033] Hereinafter, the technical solution of the present application will be described in detail with reference to the drawings.

[0034] Oral irrigators, also known as "water flossers," are auxiliary tools for oral cleaning. Their working principle is as follows: Tap water or pure water is placed in the reservoir of the oral irrigator, and the water is then pumped up and pressurized to generate a high-pressure water flow that cleans the gaps between teeth, thereby achieving the function of oral cleaning and care. In related art, oral irrigators typically have only one water reservoir, and users add tap water or pure water one or more times to achieve oral cleaning.

[0035] As knowledge of oral health becomes more widespread, more and more users are using mouthwash to manage their oral hygiene. Mouthwash freshens the oral cavity, inhibits tooth decay, contributes to the removal and inhibition of plaque, tooth stains, and tartar, and improves the health of oral soft tissues, thereby enabling better cleaning and care of the oral cavity. In order to simplify the process of users mixing mouthwash with pure water, designing a mouthwash oral irrigator that can mix mouthwash concentrate or mouthwash foaming agent with pure water in a specific ratio and pump it out under pressure has become an important research direction in the field of tooth cleaning devices.

[0036] Referring to Figures 1 and 2, Figure 1 is a schematic diagram of a mouthwash oral irrigator 1 according to some embodiments of the present application, and Figure 2 is a schematic partial diagram of a mouthwash oral irrigator 1 according to some embodiments of the present application. As shown in Figures 1 and 2, the present application provides a mouthwash oral irrigator 1. The mouthwash oral irrigator 1 includes a device main body 10, a liquid mixing and spraying device 2, a first container 14, a second container 15, and a nozzle 11. The liquid mixing and spraying device 2, the first container 14, and the second container 15 are all installed within the device main body 10, and the first container 14 and the second container 15 are each connected to the liquid mixing and spraying device 2 via a single feed pipe. The nozzle 11 is provided on one side of the device main body 10 and is connected to a liquid outlet 230 of the liquid mixing and spraying device 2.

[0037] Specifically, the device body 10 is the basic framework of the entire mouthwash oral irrigator 1 and is typically made of durable plastic or metal. The device body 10 is designed to be handheld or stationary for ease of use. The nozzle 11 is typically connected to one end of the device body 10, and the nozzle 11 outlet communicates with the liquid outlet 230 of the liquid mixing and spraying device 2, thereby discharging the mixed material (typically in liquid form) in high-pressure mode. To meet different cleaning needs, the nozzle 11 outlet has different structures depending on the discharging mode; for example, a single hole is provided for a thin water column mode, and multiple dense small holes are provided for a dispersed spray mode.

[0038] The first container 14 or the second container 15 is for storing a single material (usually in a liquid state, a paste state, or a fine solid granular state) to be mixed. The first container 14 or the second container 15 may be provided inside the device body 10 or at the other end of the device body 10. The first container 14 or the second container 15 is detachably connected to the device body 10 so that the user can easily refill the liquid. In some embodiments, a liquid inlet is provided on the outer surface of the first container 14 or the second container 15 (for example, the second liquid inlet 150 is at the top end of the second container 15). The first container 14 or the second container 15 may be a housing-like container or a shrinkable bag-like container.

[0039] The liquid mixing and jetting device 2 is a device that uniformly mixes and discharges multiple materials, and the mixing chamber of the liquid mixing and jetting device 2 communicates with the first container 14 via the first feed pipe 21 and with the second container 15 via the second feed pipe 22. The materials in the first container 14 and the second container 15 are sent to the mixing chamber and mixed uniformly, then enter the nozzle 11 via the liquid outlet 230 and are discharged from the discharge port of the nozzle 11. In some embodiments, the liquid mixing and jetting device 2 is capable of adjusting the discharge pressure and discharge flow rate of the mixed material, thereby improving the discharge effect or cleaning effect of the mixed material.

[0040] In some embodiments, mouthwash oral irrigator 1 further includes a control device 12 and a battery 13. Control device 12 and battery 13 are electrically connected and installed inside device body 10. Control device 12 is also electrically connected to liquid mixing and jetting device 2, thereby controlling the start and pause of the liquid mixing and jetting device 2. Control device 12 is typically located near the operation panel of mouthwash oral irrigator 1 and further controls the liquid discharge pressure and liquid discharge flow rate of liquid mixing and jetting device 2, allowing customization according to user needs. Battery 13 may be a rechargeable lithium battery 13, which provides power to liquid mixing and jetting device 2 in mouthwash oral irrigator 1 and ensures its long-term operation. In some embodiments, battery 13 is further managed by control device 12 for charge and discharge, ensuring stable operation of mouthwash oral irrigator 1.

[0041] Referring to FIG. 3, FIG. 3 is a schematic diagram of a liquid mixing and jetting apparatus 2 according to some embodiments of the present application, viewed from a first angle. As shown in FIG. 3, the present application provides a liquid mixing and jetting apparatus 2. The liquid mixing and jetting apparatus 2 includes a mixing pump 23, a first feed pipe 21, a second feed pipe 22, a concentrate 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 feed pipe 21 and the second feed pipe 22 both communicate with the mixing pump 23. The concentrate pump 24 is connected to the second feed pipe 22 and configured to pump the material in the second feed pipe 22 to the mixing pump 23. The first transmission assembly 26 and the reduction transmission assembly 27 are both connected to the drive unit 25 and installed 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 the transmission ratio of the first transmission assembly 26 .

[0042] Specifically, the mixing pump 23 is a pump that uniformly mixes the materials sucked from the first feed pipe 21 and the second feed pipe 22 and pressurizes the mixed materials via the liquid outlet 230 to send them to the nozzle 11 or another outlet. The first feed pipe 21 accommodates the materials that have been sent from the first container 14 but have not yet reached the mixing pump 23. The second feed pipe 22 accommodates the materials that have been sent from the second container 15 but have not yet reached the mixing pump 23. The concentrate pump 24 is a pump that pressurizes the materials in the second feed pipe 22 to the mixing pump 23, ensuring that the materials can smoothly enter the mixing pump 23 and be mixed. The drive unit 25 is a power source component, 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 from the drive unit 25 to the mixing pump 23, thereby allowing the mixing pump 23 to suck in materials or pressurize and pump out the mixed materials. The reduction transmission assembly 27 is a transmission structure that transmits the power output from the drive unit 25 to the concentrate pump 24, allowing the concentrate pump to operate at a relatively slow pumping speed.

[0043] In the embodiment of the present application, the second container 15 is typically used to store gargle raw materials or concentrates for gargle, such as a concentrate to be diluted, effervescent granules to be dissolved, or a powder solvent. For example, the second container 15 can store a disinfectant for mouthwash to be diluted, an anesthetic for mouthwash, a cleaning paste for mouthwash to be dissolved, a concentrate for mouthwash to be diluted, or effervescent granules to be dissolved. Correspondingly, the second feed pipe 22 and the concentrate pump 24 are both used to transport the materials in the second container 15. The first container 14 is typically used to store a liquid, a mixing solvent, or a solution for diluting or dissolving the materials. For example, the first container 14 can store pure water, saline, or the like. Correspondingly, the first feed pipe 21 is used to store the materials in the first container 14. The mixing pump 23 draws the material in the first container 14 and the material in the second container 15 into the mixing chamber to mix them, and then pressurizes and discharges the mixed liquid through the liquid outlet 230 and the nozzle 11, thereby achieving more efficient cleaning, disinfecting, or spraying functions. The liquid mixing and spraying device according to the embodiment of the present application can be used not only in mouthwash oral irrigators, but also in other equipment that needs to achieve dilution, dissolving, and mixing functions, such as disinfection equipment, humidification equipment, and cleaning equipment.

[0044] For ease of understanding, the following embodiment will be described as an example in which the first container 14 stores pure water and the second container 15 stores concentrated mouthwash. The liquid mixing and ejecting device according to the embodiment of the present application is not limited to mixing multiple types of liquids or mixing liquids and solids, and can achieve a wider variety of mixing and ejection of materials, so detailed description will be omitted here.

[0045] The transmission ratio refers to the ratio of the rotational speeds of input part 271 and output part 272 in reduction transmission assembly 27 or first transmission assembly 26. When it is necessary to dilute and mix the mouthwash concentrate with pure water in unequal proportions (e.g., when the mouthwash concentration is relatively low), the transmission ratio of reduction transmission assembly 27 is greater than that of first transmission assembly 26, so that concentrate pump 24 for pumping the mouthwash concentrate pumps the liquid at a reduced speed relative to mixing pump 23. Furthermore, first transmission assembly 26 and reduction transmission assembly 27 are both connected to the same output shaft of drive unit 25 and are installed on the same side of drive unit 25, thereby improving the compactness of the overall structure of liquid mixing and spraying device 2 and the rationality of the spatial layout. Furthermore, drive unit 25 has a single-shaft power output, which means that the load pressure is smaller than that of a two-shaft power output, and the operation and power output of drive unit 25 are more stable.

[0046] 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 pumps the pure water in the first container 14 through the first feed pipe 21, and the concentrate pump 24 pumps the mouthwash concentrate in the second container 15 through the second feed pipe 22. In the related art, mouthwash oral irrigators usually use a structure in which two drive motors drive two pumps respectively, and the structure in which the two motors independently control the operation of each pump has problems with circuit delay, poor mechanical quality, and the synchronous cooperation of the two pumps is easily affected, resulting in a relatively large concentration error in the dispensed mouthwash mixture.

[0047] In the embodiment of the present application, the first transmission assembly 26 and the reduction transmission assembly 27 are installed on the same side of the drive unit 25, which makes the spatial layout of the liquid mixing and jetting apparatus 2 more reasonable and the overall structure more compact, contributing to the miniaturization of the overall structure of the liquid mixing and jetting apparatus 2 and making the assembly process easier. Connecting the first transmission assembly 26 and the reduction transmission assembly 27 to the same drive unit 25 reduces the error in the flow rate when the first feed pipe 21 and the second feed pipe 22 respectively deliver material to the mixing pump 23, reduces the deviation in power source control, and makes the actual mixed concentration of the mixed liquid more accurate. Connecting the two transmission assemblies to the same drive unit 25 and installing them 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 liquid mixing and jetting apparatus 2. Furthermore, by setting different transmission ratios between the reduction transmission assembly 27 and the first transmission assembly 26, the liquid mixing and jetting device 2 can realize mixing of two materials in unequal proportions, thereby realizing the functions of diluting high-concentration solutions and mixing at specific ratios, further improving the practicality of the liquid mixing and jetting device 2 and broadening the range of application.

[0048] In some embodiments, the reduction transmission assembly 27 includes an input part 271 and an output part 272, and the input part 271 and the output part 272 achieve reduction transmission through gear meshing. Specifically, the input part 271 is operably connected to the drive unit 25, and the output part 272 is connected to the concentrate pump 24. In the embodiments of the present application, the input part 271 and the output part 272 achieve power transmission and reduction transmission through gear meshing, thereby improving the transmission efficiency, stability, and accuracy of the reduction transmission assembly 27 and the accuracy of the reduction control, and improving the accuracy of the blending ratio control of the liquid mixing and spraying device 2.

[0049] 4 to 5, FIG. 4 is a schematic exploded view of reduction transmission assembly 27 according to some embodiments of the present application, viewed from a first angle, and FIG. 5 is a schematic exploded view of reduction transmission assembly 27 according to some embodiments of the present application, viewed from a second angle. As shown in FIGS. 4 and 5, reduction transmission assembly 27 further includes at least one planetary gear 274, which is rotatably mounted between input part 271 and output part 272 without changing its position. In the embodiments of the present application, using a planetary gear structure between input part 271 and output part 272 for reduction transmission contributes to simplifying and compacting the structure, and can improve the efficiency, accuracy, and stability of transmission, thereby making the liquid mixing and spraying device 2 and mouthwash oral irrigator 1 operate more quietly and stably.

[0050] In some other embodiments of the present application, the input component has a gear structure, and multiple identical planetary gears are installed and uniformly distributed circumferentially around the input component (i.e., the input component is inserted between multiple planetary gears), each planetary gear is independent, and the input component is installed to be able to mesh with each of the planetary gears, so that when the input component rotates, it drives each planetary gear to rotate. The output component has a ring gear structure, and the tooth structure of the output component is installed outside all of the planetary gears so as to surround all of the planetary gears, and the output component is installed to mesh with the planetary gears. When the planetary gears rotate, they can drive the output component, which has a larger diameter than the input component, to rotate around its own axis, so that the rotational speed of the output component is slower than that of the input component, thereby realizing the reduction transmission function of the reduction transmission assembly.

[0051] 4 and 5, in some embodiments, the reduction transmission assembly 27 further includes a first-stage ring gear 273, which is rotatably mounted on the gear mounting frame 270 and is coaxially connected to and rotates synchronously with the input component 271. A plurality of identical planetary gears 274 are mounted within the first-stage ring gear 273, and each planetary gear 274 is independent and meshes with the first-stage ring gear 273. The output component 272 also has a ring gear structure and meshes with each planetary gear 274. When the input component 271 rotates, the first-stage ring gear 273 rotates synchronously with the input component 271 and drives the planetary gears 274 to rotate. When the planetary gear 274 rotates, it can drive the output part 272 to rotate, and the transmission ratio from the input part 271 to the output part 272 is greater than 1, thereby realizing the reduction transmission function of the reduction transmission assembly 27.

[0052] 6, which is a schematic partial structural view of a reduction transmission assembly 27 according to some embodiments of the present application. As shown in FIGS. 4 to 6, the planetary gear 274 includes a first-stage tooth meshing portion 2741 and a second-stage tooth meshing portion 2742 that are coaxially and fixedly connected, with the diameter of the first-stage tooth meshing portion 2741 being larger than the diameter of the second-stage tooth meshing portion 2742. Specifically, the reduction transmission assembly 27 further includes a first-stage ring gear 273 that is coaxially connected to the input part 271 and rotates synchronously with it. The first-stage ring gear 273 is rotatably mounted on the gear mounting frame and meshes with the first-stage tooth meshing portion 2741. The output part 272 is a second-stage ring gear that meshes with the second-stage tooth meshing portion 2742.

[0053] In the embodiment of the present application, a plurality of identical planetary gears 274 are installed and uniformly distributed in the circumferential direction within the first-stage ring gear 273. When the input part 271 rotates, the first-stage ring gear 273 rotates synchronously with the input part 271 and drives the planetary gears 274 to rotate, so that the power transmission from the input part 271 to the planetary gears 274 is a one-stage reduction transmission. When the planetary gear 274 rotates, the second stage tooth meshing portion 2742 and the first stage tooth meshing portion 2741 rotate synchronously, the diameter of the second stage tooth meshing portion 2742 is smaller than the diameter of the first stage tooth meshing portion 2741, the diameter of the second stage gear disc is larger than the diameter of the second stage tooth meshing portion 2742, the second stage gear disc rotates at a reduced speed due to the drive of the second stage tooth meshing portion 2742, and the transmission from the planetary gear 274 to the output part 272 is a two-stage reduction transmission.

[0054] In the above technical solution, planetary gear 274 having multiple stages of tooth meshing portions and different tooth diameters allows reduction transmission assembly 27 to achieve multi-stage reduction, thereby achieving a relatively large reduction ratio, that is, liquid mixing and jetting device 2 can achieve a material mixing function with a greater difference in the mixed amount of materials, a more extreme mixing ratio, and a lower mouthwash mixing concentration (for example, a volume mixing ratio of concentrated mouthwash to pure water of 1:100). First stage tooth meshing portion 2741 and second stage tooth meshing portion 2742 are fixedly connected coaxially, making the entire structure of reduction transmission assembly 27 more compact and simple.

[0055] In some other embodiments of the present application, the reduction transmission assembly may have a structure in which the planetary gears rotate on their own axes while revolving around the input component (i.e., a planetary gear mechanism) to operate the concentrate pump. The output component is a planetary gear, and the planetary gear is rotatably installed on one side of the input component. When the input component rotates on its axis, the planetary gear rotates around the input component. Specifically, the reduction transmission assembly further includes an intermediate ring gear fixedly installed coaxially with the input component, the planetary gears mesh with the intermediate ring gear, and the planetary gears are connected to the input component by a hinge connection component (planet carrier). When the input component rotates on its axis, the input component drives the planetary gears to rotate around the input component via the hinge connection component, and the planetary gears mesh with the intermediate ring gear during the process of rotating around the input component. Due to the engagement with the intermediate ring gear, the speed at which the planetary gear rotates around the input part is slower than the rotation speed of the input part, thereby realizing the reduction transmission function of the reduction transmission assembly.

[0056] Referring to Fig. 7, Fig. 7 is a schematic exploded view of a reduction transmission assembly 27 according to some other embodiments of the present application. As shown in Fig. 7, the reduction transmission assembly 27 further includes a bevel gear 275 and an intermediate gear 276. The bevel gear 275 and the intermediate gear 276 are coaxially and fixedly connected. The output part 272 of the reduction transmission assembly 27 is an output gear disc, and the input part 271 of the reduction transmission assembly 27 has a bevel gear structure. Specifically, the bevel gear 275 meshes with the input part 271, and the intermediate gear 276 meshes with the output gear disc.

[0057] In the embodiment of the present application, when the input part 271 rotates, the bevel gear 275 meshing with the input part 271 rotates therewith, and when the intermediate gear 276, which rotates synchronously with the bevel gear 275, rotates on its axis, it drives the output gear disk meshing with the intermediate gear 276 to rotate at a reduced speed. In the above technical solution, the installation of the bevel gear 275 and the intermediate gear 276 allows the reduction transmission assembly 27 to realize a change in transmission direction, which makes more efficient use of the side space of the liquid mixing and jetting device 2 and makes the structural layout more reasonable and compact. Furthermore, referring to the embodiment shown in Figure 6, by setting the diameters of the bevel gear 275 and the intermediate gear 276, the reduction transmission assembly 27 can realize multi-stage reduction, which can achieve a larger reduction ratio and realize the function of mixing materials with more extreme blending ratios.

[0058] 8, which is a schematic exploded view of a reduction transmission assembly 27 according to some other embodiments of the present application. As shown in FIG. 8, the input part 271 is a transmission worm, the output part 272 is an output gear disc, and the reduction transmission assembly 27 further includes a transmission worm gear 277 and an intermediate gear 276. The transmission worm gear 277 and the intermediate gear 276 are coaxially and fixedly connected. The transmission worm meshes with the transmission worm gear 277, and the intermediate gear 276 meshes with the output gear disc.

[0059] In the embodiment of the present application, when the transmission worm rotates, the transmission worm gear 277 meshing with the transmission worm rotates therewith. When the intermediate gear 276, which rotates synchronously with the transmission worm gear 277, rotates on its axis, it drives the output gear disk meshing with the intermediate gear 276 to rotate at a reduced speed. In the above technical solution, the meshing of the worm gear and the worm allows the reduction transmission assembly 27 to support a larger reduction ratio and has an automatic locking function. The arrangement of the transmission worm gear 277 and the intermediate gear 276 allows the reduction transmission assembly 27 to change transmission direction, more efficiently utilize its side space, and achieve a more reasonable and compact structural layout. Furthermore, referring to the embodiment shown in FIG. 6, by adjusting the diameters of the transmission worm gear 277 and the intermediate gear 276, the reduction transmission assembly 27 can achieve two-stage reduction, thereby achieving a larger reduction ratio and enabling the material mixing function with a more extreme mixing ratio.

[0060] In some other embodiments of the present application, the reduction transmission assembly includes an input part and an output part, and the input part and the output part are connected by a transmission belt or a transmission chain to achieve reduction transmission. Specifically, the input part is connected to a drive unit, and the output part is connected to a liquid pump, and the reduction transmission between the input part and the output part is achieved by the difference in diameter of the pulleys corresponding to the transmission belt or the difference in diameter of the sprockets corresponding to the transmission chain. In the above technical solution, the input part and the output part achieve reduction transmission by cooperation of the transmission belt or the transmission chain, thereby providing greater freedom in spatial layout of the reduction transmission assembly and overload protection capabilities. Furthermore, reduction transmission assemblies using transmission belts or transmission chains are easy to install and relatively low cost, and reduction transmission assemblies using transmission belts provide vibration damping capabilities.

[0061] 3 to 8, the concentrate pump 24 includes a concentrate pump housing 240 and at least one concentrate pump rotor 241, and the concentrate pump rotor 241 is rotatably installed within the concentrate pump housing 240. Specifically, a portion of the second feed pipe 22 is installed 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 part 272 and rotates synchronously with the output part 272, and the concentrate pump rotor 241 and the input part 271 are located on opposite sides of the output part 272, respectively. When multiple concentrate pump rotors 241 are uniformly arranged circumferentially around the central axis of output part 272 and concentrate pump 24 is assembled, the minimum distance between concentrate pump rotor 241 and the inner wall of concentrate pump housing 240 is smaller than the pipe diameter of second feed pipe 22, thereby enabling concentrate pump rotor 241 to press against second feed pipe 22 and push against the mouthwash concentrate in second feed pipe 22.

[0062] In the embodiment of the present application, concentrate pump rotor 241 presses second feed pipe 22 when rotating together with output piece 272 in a specific direction, thereby pumping the material to mixing pump 23. Concentrate pump rotor 241 and output piece 272 rotate in the same direction, and both can push the mouthwash concentrate in second feed pipe 22 to pump it to mixing pump 23. In the above technical solution, concentrate pump rotor 241 presses second feed pipe 22 to pump the material to mixing pump 23, which reduces or even eliminates the possibility of contamination of the material in second feed pipe 22, has a compact and simple structure, is suitable for pumping materials of various viscosities and forms, has a more accurate flow rate of the pumped material, and is more reliable in pumping the material.

[0063] 9, which is a schematic structural diagram of the first transmission assembly 26 and the mixing pump 23 according to some embodiments of the present application. As shown in FIG. 9, the mixing pump 23 includes a mixing pump housing 231 and a power push rod 232. The internal chamber of 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 installed in the mixing chamber, and the other end is connected to the first transmission assembly 26.

[0064] Furthermore, the vertical distance between the power push rod 232 and the liquid outlet 230 changes as the power push rod 232 moves, but no matter how the power push rod 232 moves, its movable range never covers the communication points between the first feed pipe 21, the second feed pipe 22 and the mixing chamber, i.e., the vertical distance between the power push rod 232 and the liquid outlet 230 is always greater than the vertical distance between the feed pipe communication port and the liquid outlet 230.

[0065] In the above technical solution, the mixing pump 23, which sucks and pushes the material by the reciprocating movement of the power push rod 232, can be regarded as a piston pump, and the piston pump generates a relatively large pushing force, which can realize the discharge of the mixed material at a faster flow rate, and the mechanical efficiency of the piston pump is higher. In addition, the reciprocating movement of the power push rod 232 allows the mixing pump 23 to achieve a more accurate and stable discharge flow rate, and it has a relatively strong self-priming ability, a wide range of applications, high reliability, a simple structure, and easy maintenance.

[0066] In some embodiments, the mixing pump 23 further includes a homogenizing member disposed in the mixing chamber, with a liquid outlet 230 and a power push rod 232 located on either side of the homogenizing member, and at least one through-hole provided in the homogenizing member for material to pass through. Furthermore, a communication point between the first feed pipe 21 and the second feed pipe 22 is provided between the homogenizing member and the liquid outlet 230. In the above technical solution, the homogenizing member with the through-hole provides turbulence to the material (usually liquid) that has just entered the mixing chamber or is about to leave the mixing chamber, thereby enabling the two materials to be mixed more uniformly and thoroughly.

[0067] In some embodiments, the first transmission assembly 26 includes a coupling gear 260, a first gear disk 261, and an eccentric shaft 262. The coupling gear 260 and the output shaft of the drive unit 25 are coaxially and fixedly connected, the coupling gear 260 and the first gear disk 261 mesh with each other, the eccentric shaft 262 is provided on one side of the first gear disk 261, and the other end of the power push rod 232 is circumferentially mounted on the eccentric shaft 262 and is rotatable relative to the eccentric shaft 262. Furthermore, the input part 271 of the reduction transmission assembly 27 is coaxially and fixedly connected to the first gear disk 261 and is rotatable synchronously with the first gear disk 261.

[0068] In the embodiment of the present application, the power of the driving unit 25 is transmitted via the output shaft to the coupling gear 260, which is coaxially fixedly connected to the output shaft, and then to the eccentric shaft 262 through the meshing of the coupling gear 260 and the first gear disk 261, thereby driving the power push rod 232 to perform reciprocating linear motion. The input part 271 of the reduction transmission assembly 27 is coaxially connected to the first gear disk 261, and the reduction transmission assembly 27 further reduces the rotation speed based on the rotation speed of the first gear disk 261 or the eccentric shaft 262, so that 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 driving unit 25 into linear reciprocating motion via the eccentric shaft 262, thereby realizing the reciprocating motion of the power push rod 232. Furthermore, the first transmission assembly 26 using the above structure has a compact structure, is easy to assemble, and has a relatively high transmission efficiency.

[0069] 10, which is a schematic view of a liquid mixing and jetting apparatus 2 according to some embodiments of the present application, viewed from a second angle. As shown in FIG. 10, the eccentric shaft 262, the power push rod 232, and the reduction transmission assembly 27 are all installed on the same side of the first gear disc 261. Alternatively, in some other embodiments, the eccentric shaft 262, the power push rod 232, and the reduction transmission assembly 27 may be installed on opposite sides of the first gear disc 261. In the above technical solution, the reduction transmission assembly 27 and the power push rod 232 are arranged on the same side or different sides of the first gear disc 261 according to the actual space, so that the entire structure of the liquid mixing and jetting apparatus 2 can be reasonably arranged in a limited space, is smaller and more compact, and can also reduce the possibility that the feed pipe will be pulled by the moving parts.

[0070] Referring to Figure 11, Figure 11 is a schematic partial configuration diagram of a liquid mixing and jetting device 2 according to some embodiments of the present application. As shown in Figures 10 and 11, the first feed pipe 21 and the second feed pipe 22 communicate with the mixing pump 23 (or mixing chamber) through the same communication port via a three-way joint 280. Specifically, a check valve is installed at the communication point between the three-way joint 280 and the mixing pump 23. Alternatively, a first check valve is installed at the communication point (communication port) between the three-way joint 280 and the mixing pump 23, a second check valve is installed at the communication point between the three-way joint 280 and the second feed pipe 22, and a third check valve is installed at the communication point between the three-way joint 280 and the first feed pipe 21.

[0071] In the above technical solution, the first feed pipe 21 and the second feed pipe 22 are connected to the same communication port of the mixing chamber by the three-way joint 280, which reduces the difficulty of processing the mixing pump 23 and the possibility of leakage, and the check valve 281 reduces the possibility of backflow of the mixed liquid. Furthermore, considering the relatively large pushing force of the mixing pump 23 on the mixed liquid, the installation of the second check valve or the third check valve can further reduce the possibility of the mixed liquid breaking through the first check valve under relatively large pressure and flowing back into the second feed pipe 22 or the first feed pipe 21, thereby improving the accuracy of the blending ratio of the mixed liquid.

[0072] In some other embodiments, the first feed pipe 21 and the second feed pipe 22 are respectively connected to the mixing pump 23 at different points. The liquid mixing and jetting device 2 further includes at least one check valve 281, which is installed at the connection point between the first feed pipe 21 and the mixing pump 23 and / or the connection point between the second feed pipe 22 and the mixing pump 23. Furthermore, a check valve 281 is installed at the connection port between the first feed pipe 21 and the second feed pipe 22 and the mixing pump 23, respectively. In the above technical solution, the installation of the check valve 281 reduces the possibility of the mixed materials in the mixing chamber flowing back into the first feed pipe 21 or the second feed pipe 22, and improves the precision of the control by the mouthwash oral irrigator 1 in mixing multiple materials at a specific ratio.

[0073] Referring to FIG. 12, FIG. 12 is a schematic front view of a liquid mixing and jetting apparatus 2 according to some embodiments of the present application. As shown in FIG. 12, the liquid mixing and jetting apparatus 2 further includes a liquid feed control valve 282, which is connected to the second feed pipe 22. Specifically, the liquid feed control valve 282 adjusts the opening of the valve to change the cross-sectional area of ​​the flow path, thereby changing the flow rate of the medium passing through the valve. The liquid feed control valve 282 can adjust and balance the flow rate of the liquid in the second feed pipe 22 by cooperating with a manual control valve unit or an electric control valve unit and an automatic balancing valve unit. The manual control valve unit or the electric control valve unit is used to set the flow rate, and the automatic balancing valve unit is used to maintain a constant flow rate. In the above technical solution, the liquid mixing and jetting apparatus 2 further adjusts the blending ratio of the two materials using the liquid feed control valve 282, thereby making it possible to adjust the concentration of the mixed liquid and improving the practicality of the liquid mixing and jetting apparatus 2.

[0074] In some embodiments, the liquid mixing and spraying device 2 further includes a concentrate flow sensor, which is installed in the second feed pipe 22 and located at the material suction end of the second feed pipe 22, and the material suction end is adjacent to or located within the second container 15. In the above technical solution, the liquid mixing and spraying device 2 or the mouthwash oral irrigator 1 determines whether the concentrate (mouthwash concentrate) is running low based on the flow rate detection data fed back from the concentrate flow rate sensor, and thereby notifies the user in a timely manner to replenish the liquid, and can further determine whether the flow control valve is completely closed based on the fluctuations in the concentrate flow rate detection data.

[0075] Furthermore, mouthwash oral irrigator 1 further includes a water level detection sensor, which is installed in first container 14 or second container 15, to detect whether the liquid in first container 14 or second container 15 is running low. Liquid mixing and jetting device 2 further includes a first flow rate sensor, which is installed in first feed pipe 21 and located at the material suction end of first feed pipe 21, to detect whether the liquid in first container 14 is running low.

[0076] The above is only a preferred embodiment of the present application and does not limit the present application. Those skilled in the art may have various modifications and variations to the present application. As long as they do not deviate from the spirit and principle of the present application, any modifications, equivalent replacements, improvements, etc., fall within the protection scope of the present application. [Explanation of symbols]

[0077] 1 mouthwash oral irrigator 10. Device body 11 nozzles 12 Control device 13 Batteries 14 1st container 15 Second container 150 Second filling port Two-liquid mixing jet device 21 First feed pipe 22 Second feed pipe 23 Mixing Pump 231 Mixing Pump Housing 232 Power push rod 230 Liquid outlet 24 Concentrate pump 240 Concentrate pump housing 241 Concentrate pump rotor 25 Drive Unit 26 First transmission assembly 260 Coupling Gear 261 1st gear disc 262 Eccentric shaft 27 Reduction transmission assembly 270 gear mounting frame 271 Input Components 272 Output Parts 273 1st stage ring gear 274 Planetary Gear 2741 First stage tooth engagement part 2742 Second stage tooth engagement part 275 Bevel Gear 276 Intermediate Gear 277 Transmission Worm Gear 280 Three-way joint 281 Check valve 282 Concentrate flow control valve

Claims

1. The apparatus includes a mixing pump, a first feed pipe, a second feed pipe, a concentrate pump, a drive unit, a first transmission assembly, and a reduction transmission assembly; the mixing pump has a liquid outlet, and the first feed pipe and the second feed pipe both communicate with the mixing pump; the concentrate pump is connected to the second feed pipe and configured to pump the material in the second feed pipe to the mixing pump; The first transmission assembly and the reduction transmission assembly are both connected to the driving unit and are installed on the same side of the driving 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 that of the first transmission assembly. A liquid mixing and ejecting device characterized by the above.

2. The reduction transmission assembly includes an input part and an output part, and the input part and the output part perform reduction transmission by gear meshing, and the input part is connected to the drive unit, and the output part is connected to the concentrate pump.

2. The liquid mixing and ejecting device according to claim 1.

3. The reduction transmission assembly further includes at least one planetary gear, the planetary gear being rotatably disposed between the input component and the output component.

3. The liquid mixing and ejecting device according to claim 2.

4. The planetary gear includes a first stage tooth meshing portion and a second stage tooth meshing portion that are coaxially and fixedly connected, and the diameter of the first stage tooth meshing portion is larger than the diameter of the second stage tooth meshing portion; The reduction transmission assembly further includes a first stage ring gear coaxially connected to the input component and rotating synchronously therewith, the first stage ring gear meshing with the first stage tooth meshing portion, the output component being a second stage ring gear, the second stage ring gear meshing with the second stage tooth meshing portion.

4. The liquid mixing and ejecting device according to claim 3.

5. The output part is a planetary gear, and the planetary gear is rotatably installed on one side of the input part, and when the input part rotates, the planetary gear rotates around the input part.

3. The liquid mixing and ejecting device according to claim 2.

6. The reduction transmission assembly further includes a bevel gear and an intermediate gear, the bevel gear and the intermediate gear are coaxially fixedly connected, the output component is an output gear disc, the bevel gear meshes with the input component, and the intermediate gear meshes with the output gear disc.

3. The liquid mixing and ejecting device according to claim 2.

7. The reduction transmission assembly further includes a transmission worm gear and an intermediate gear, the transmission worm gear and the intermediate gear are coaxially fixedly connected, the input part is the transmission worm, the output part is an output gear disk, the transmission worm meshes with the transmission worm gear, and the intermediate gear meshes with the output gear disk.

3. The liquid mixing and ejecting device according to claim 2.

8. The reduction transmission assembly includes an input part and an output part, and the input part and the output part are connected by a transmission belt or a transmission chain to perform reduction transmission, and the input part is connected to the drive unit, and the output part is connected to the raw liquid pump.

2. The liquid mixing and ejecting device according to claim 1.

9. The concentrate pump includes a concentrate pump housing and a concentrate pump rotor, the concentrate pump rotor is rotatably installed in the concentrate pump housing, a portion of the second feed pipe is installed between the concentrate pump housing and the concentrate pump rotor, and the concentrate pump rotor presses the second feed pipe when rotating to pump the material to the mixing pump. The liquid mixing and ejecting device according to any one of claims 1 to 8.

10. The mixing pump includes a mixing chamber and a power push rod, the mixing chamber communicates with the liquid outlet, and one end of the power push rod is movably installed in the mixing chamber and the other end is connected to the first transmission assembly. The liquid mixing and ejecting device according to any one of claims 1 to 8.

11. The mixing pump further includes a homogenizing member, the homogenizing member is disposed in the mixing chamber, the liquid outlet and the power push rod are located on both sides of the homogenizing member, and the homogenizing member has at least one through hole. The liquid mixing and ejecting device according to claim 10.

12. The first transmission assembly includes a coupling gear, a first gear disc, and an eccentric shaft, the coupling gear and the drive unit are coaxially and fixedly connected, the coupling gear and the first gear disc are meshed, the eccentric shaft is provided on one side of the first gear disc, and the other end of the power push rod is circumferentially mounted on the eccentric shaft. The liquid mixing and ejecting device according to claim 10.

13. The eccentric shaft and the reduction transmission assembly are both installed on the same side of the first gear disc, or the eccentric shaft and the reduction transmission assembly are respectively installed on opposite sides of the first gear disc. The liquid mixing and ejecting device according to claim 12.

14. The liquid mixing and jetting device further includes at least one check valve, the check valve being installed at a communication point between the first feed pipe and the mixing pump and / or the check valve being installed at a communication point between the second feed pipe and the mixing pump. The liquid mixing and ejecting device according to any one of claims 1 to 8.

15. The first feed pipe and the second feed pipe are connected to the mixing pump by a three-way joint, and a first check valve is installed at the connection point between the three-way joint and the mixing pump. The liquid mixing and ejecting device according to any one of claims 1 to 8.

16. A second check valve is installed at the communication point between the three-way joint and the second feed pipe.

16. The liquid mixing and ejecting device according to claim 15.

17. The liquid mixing and jetting device further includes a liquid concentrate flow rate control valve, and the liquid concentrate flow rate control valve is connected to the second feed pipe. The liquid mixing and ejecting device according to any one of claims 1 to 8.

18. The liquid mixing and jetting device further includes a raw liquid flow rate sensor, the raw liquid flow rate sensor being installed in the second feed pipe and located at the material intake end of the second feed pipe.

18. The liquid mixing and ejecting device according to claim 17.

19. A mouthwash oral irrigator, The liquid mixing and jetting device includes a device body, a first container, a second container, and a nozzle, The liquid mixing and ejecting device is installed in the device body, the first container and the second container are both installed in the device body, the first container communicates with the first feed pipe, and the second container communicates with the second feed pipe; The nozzle is provided on one side of the device body and communicates with the liquid outlet. A mouthwash oral irrigator characterized by the above.

Images