Base station unit, oral care equipment and water pumping assembly

Abstract

The utility model discloses a base station unit, oral care equipment and a water pumping assembly, the base station unit at least comprises a main shell and the water pumping assembly, and the main shell is provided with a containing cavity; the water pumping assembly is installed in the containing cavity, the water pumping assembly comprises a transmission mechanism, a power source and a pump mechanism, the power source and the pump mechanism are installed on the transmission mechanism, the transmission mechanism is provided with a first cavity, and the pump mechanism is provided with a second cavity and a piston reciprocating in the second cavity; wherein a first sealing piece is arranged at the joint of the transmission mechanism and the power source, and a second sealing piece is arranged at the joint of the transmission mechanism and the pump mechanism, so that liquid leaked into the first cavity from the piston is limited in the first cavity. According to the technical scheme provided by the invention, electronic components in the base station unit can be prevented from being damaged by liquid leaked from the piston, and the service life is prolonged.

Description

Technical Field

[0001] The present application relates to the field of oral care technology, and in particular to a base station unit, oral care equipment and a water pump assembly. Background Art

[0002] In the related art, the water flosser uses a water pump assembly to generate high-speed water flow or pulse water flow, which can penetrate deep into the hard-to-clean areas of the teeth and gums and effectively remove food debris and bacteria.

[0003] However, the piston in the water pump assembly may cause damage to the piston seal after a long period of movement, causing the liquid in the pump body to leak out through the piston, causing damage to the electronic components in the base station unit. Utility Model Content

[0004] The purpose of the present application is to provide a base station unit, an oral care device and a water pump assembly, which can prevent liquid leaking through the piston from damaging electronic components in the base station unit and increase the service life.

[0005] To achieve the above-mentioned purpose, the present application provides a base station unit on one hand, which includes at least a main shell and a water pump assembly, the main shell having an outer wall and a accommodating chamber surrounded by the outer wall; the water pump assembly is connected to the accommodating chamber, the water pump assembly includes a transmission mechanism and a power source and a pump mechanism installed on the transmission mechanism, the transmission mechanism has a first chamber, the pump mechanism has a second chamber and a piston that reciprocates in the second chamber; wherein, a first seal is provided at the connection between the transmission mechanism and the power source, and a second seal is provided at the connection between the transmission mechanism and the pump mechanism.

[0006] The technical solution provided by the present application is to provide a first seal at the connection between the power source and the transmission mechanism, and a second seal at the connection between the pump mechanism and the transmission mechanism, wherein the first seal seals the connection gap between the transmission mechanism and the power source, and the second seal seals the connection gap between the transmission mechanism and the pump mechanism. In this way, when the liquid in the pump mechanism accidentally leaks into the first chamber through the piston, the first seal and the second seal seal the connection between the transmission mechanism and the outside, forming a relatively sealed space in the first chamber, thereby confining the liquid leaking from the piston into the first chamber to the first chamber, preventing the liquid from leaking into the accommodating chamber and causing the fault to spread, preventing damage to other electronic components in the accommodating chamber, and preventing the liquid from further leaking from the main shell through the accommodating chamber to the outside, affecting the user experience.

[0007] Furthermore, the power source and the pump mechanism are connected as a whole through the transmission mechanism, thereby facilitating the integrated installation of the pump-water assembly in the accommodating chamber, thus facilitating installation operations.

[0008] Optionally, at least one drain port communicating with the first chamber is provided at the bottom of the transmission mechanism, and the drain port is used to discharge the liquid in the first chamber to a preset position.

[0009] Optionally, the drain port is connected to a drain pipe, so that the liquid flowing out of the drain port flows to the preset position under the guidance of the drain pipe; the preset position is located outside the base station unit.

[0010] Optionally, the drain port is connected to a drain pipe, and the drain pipe is connected in series with a one-way valve so that the liquid flowing out of the drain port flows unidirectionally to the preset position under the guidance of the drain pipe; the preset position is at least one of the pump mechanism, the upstream of the pump mechanism, and the downstream of the pump mechanism.

[0011] Optionally, the transmission mechanism includes a box body and a bottom shell, wherein the box body is provided with a first opening, the bottom shell is connected to the box body and at least partially covers the first opening, the box body and the bottom shell together form the first chamber, and a third seal is provided at the connection between the box body and the bottom shell.

[0012] Optionally, the top of the box body is provided with a first mounting portion extending upward, and an axial through-hole connecting the first chamber and the first mounting portion; the power source is installed on the first mounting portion, and the output shaft of the power source passes through the first seal and the axial through-hole in sequence and extends into the first chamber, so that the first seal seals the gap between the output shaft and the axial through-hole.

[0013] Optionally, a connecting hole connecting the first chamber and the first mounting portion is provided on the top of the box body; the power source is connected to the box body through a first fastener passing through the connecting hole and the first sealing member, so that the first sealing member seals the gap between the first fastener and the connecting hole.

[0014] Optionally, the side wall of the box body is provided with a second mounting portion extending outward, and the inner cavity of the second mounting portion is connected to the first chamber; the pump mechanism has a driving shell portion, which surrounds and forms the second chamber, and the driving shell portion is at least partially inserted into the inner cavity of the second mounting portion, and the second sealing member is provided between the outer wall surface of the driving shell portion and the inner wall surface of the second mounting portion.

[0015] Optionally, the box body, the first mounting portion and the second mounting portion are integrally formed.

[0016] Optionally, the transmission mechanism also includes a connecting rod and a transmission assembly located in the first chamber; the first end of the transmission assembly is connected to the output shaft of the power source, the second end of the transmission assembly is connected to one end of the connecting rod, and the other end of the connecting rod is connected to the piston, so that the power source drives the piston to reciprocate through the transmission assembly and the connecting rod.

[0017] Optionally, the outer wall surface of the bottom shell is provided with a connecting plate extending outward; the bottom of the box body is provided with a matching groove matching with the connecting plate, and the outer wall surface of the box body is provided with a connecting column; when the bottom shell is installed on the box body through the connecting plate and the matching groove, the bottom shell is at least partially inserted into the first cavity, and the connecting plate is connected to the connecting column through a second fastener.

[0018] Optionally, the third sealing member is provided between the outer wall surface of the bottom shell and the inner wall surface of the box body, so that the third sealing member seals the connection gap between the box body and the bottom shell.

[0019] Optionally, the accommodating chamber includes a first accommodating chamber and a second accommodating chamber that are isolated from each other, wherein the second accommodating chamber is located below the first accommodating chamber, and the water pump assembly is suspended in the second accommodating chamber.

[0020] To achieve the above-mentioned purpose, the present application also provides an oral care device on the other hand, which includes at least the above-mentioned base station unit and the oral cleaner, wherein the base station unit is connected to the oral cleaner through a delivery pipeline, and the base station unit can deliver liquid to the oral cleaner through the delivery pipeline so that the liquid is sprayed out through the cleaning head of the oral cleaner.

[0021] To achieve the above-mentioned purpose, the present application also provides a water pump assembly on the other hand, which includes at least a transmission mechanism, a power source and a pump mechanism; the transmission mechanism has a first chamber; the power source and the pump mechanism are installed on the transmission mechanism, and the pump mechanism has a second chamber and a piston that reciprocates in the second chamber; wherein, a first seal is provided at the connection between the transmission mechanism and the power source, and a second seal is provided at the connection between the transmission mechanism and the pump mechanism, so as to limit the liquid leaked from the pump mechanism and from the piston to the first chamber.

[0022] Optionally, at least one drain port communicating with the first chamber is provided at the bottom of the transmission mechanism, and the drain port is used to discharge the liquid in the first chamber to a preset position. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0024] Figure 1 This is a schematic structural diagram of an oral care device according to an embodiment of the present application;

[0025] Figure 2 This is a bottom perspective diagram of a partial structure of a base station unit in an embodiment provided by the present application;

[0026] Figure 3 This is a three-dimensional schematic diagram of a water pump assembly in one embodiment provided by the present application;

[0027] Figure 4 This is a schematic diagram of a half-section structure of a water pump assembly in one embodiment provided in the present application;

[0028] Figure 5 This is an exploded schematic diagram of a water pump assembly according to an embodiment of the present application;

[0029] Figure 6 This is a schematic structural diagram of a bottom shell in an embodiment provided by the present application;

[0030] Figure 7 This is a schematic diagram of the integrated structure of the box body, the first mounting portion and the second mounting portion in an embodiment provided by the present application;

[0031] Figure 8 This is a partial cross-sectional schematic diagram of a water pump assembly in one embodiment provided in the present application;

[0032] Figure 9 is a half-section schematic diagram of a water pump assembly from another perspective in one embodiment provided in the present application;

[0033] Figure 10 is a half-section schematic diagram of a pump mechanism in one embodiment provided in the present application;

[0034] Figure 11 This is a half-section schematic diagram of the main housing and the water pump assembly connected in one embodiment provided by the present application;

[0035] Description of reference numerals:

[0036] 1000, base station unit; 2000, oral cleaner;

[0037] 100, main housing; 110, accommodating chamber; 111, first accommodating chamber; 112, second accommodating chamber;

[0038] 200, water pump assembly; 210, transmission mechanism; 211, first chamber; 212, drain port; 2121, drain pipe; 213, housing; 2131, first opening; 2132, shaft through-hole; 2133, connecting through-hole; 2134, mating groove; 2135, connecting column; 214, bottom shell; 2141, connecting plate; 215, first mounting portion; 216, second mounting portion; 217, transmission assembly; 218, connecting rod; 220, power source; 221, output shaft; 222, first fastener; 230, pump mechanism; 231, second chamber; 232, piston; 233, drive housing; 234, contact sleeve;

[0039] 300, first sealing member;

[0040] 400, second sealing member;

[0041] 500. The third seal. DETAILED DESCRIPTION

[0042] With the development of oral hygiene devices, a growing number of devices with different functions have emerged, such as irrigators that only function as irrigators and integrated irrigators that combine irrigating and brushing functions. Both of these devices require a base unit to provide water flow to output a water impact, thereby flushing away food debris, bacteria, plaque, stains, and other substances harmful to dental health that adhere to the gums, thereby achieving oral health and care.

[0043] In related technologies, oral cleaning devices use a pump assembly to generate high-speed or pulsed water flow, which can penetrate deep into the hard-to-clean areas of teeth and gums, effectively removing food debris and bacteria. However, most pump assemblies use the reciprocating motion of a piston in the pump body to change the volume and pressure of the cavity inside the pump body to achieve water inlet and outlet. Prolonged piston movement can damage the piston seal, such as causing wear and deformation. This can cause the liquid in the pump body to leak outward through the damaged piston, posing a risk of damage to the electronic components within the base unit.

[0044] In response to the above technical problems, the inventors of this application came up with the idea of ​​placing the water pump assembly below the base station unit and placing other electronic components in the base station unit above the base station unit. By separating the water pump assembly and utilizing the gravity of the liquid itself, the liquid that accidentally leaks from the water pump assembly is prevented from flowing into the electronic components and causing damage to the electronic components. However, this method still causes the leaked liquid to overflow to the outside of the base station unit, affecting the user's experience. As the user moves the unit with their hands, the liquid inside will also sway or even turn upside down, causing the leaked liquid to come into contact with the electronic components and cause damage. To this end, the inventors of this application found through research that when liquid leaks through the piston, the liquid will be exposed through the connection gap between the gearbox and the motor, the connection gap between the gearbox and the pump body, and the assembly gap of the gearbox itself. Therefore, the inventors of this application further set up sealing structures in all the above gaps to seal the liquid leaked through the piston inside the gearbox, thereby preventing damage to other electronic components in the base station unit. At the same time, a drain port is provided at the bottom of the gear box connected to the pump body, and a guide pipe connected to the drain port is provided, so that the liquid leaked from the piston can be discharged to a preset position through the drain port, thereby avoiding the liquid being soaked in the gear box for a long time, causing the gears in the gear box to rust, and the debris in the gear box to flow into the pump body through the liquid soaked in the gear box, and then enter the oral cleaner to affect the brushing experience.

[0045] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments.

[0046] The present application provides a base station unit 1000, which can be used as a separate component in conjunction with an oral cleaner 2000 to provide liquid for rinsing the oral cleaner 2000. Of course, the base station unit 1000 can also be integrated with a charging module, and the base station unit 1000 can charge the oral cleaner 2000 through the charging module, but this application does not specifically limit this.

[0047] Please also see Figures 1 to 4 In one feasible embodiment, the base station unit 1000 may include at least a main housing 100. The main housing 100 serves as the main body of the base station unit 1000 and supports and protects other components of the base station unit 1000. The main housing 100 has an outer wall and a receiving chamber 110 enclosed by the outer wall.

[0048] In this embodiment, the base station unit 1000 may further include a water pump assembly 200 installed in the receiving chamber 110. The water pump assembly 200 serves as the power part of the liquid supply system in the base station unit 1000. The water pump assembly 200 is used to extract and discharge liquid so that the discharged liquid can enter the oral cleaner 2000, thereby forming a water flow impact to achieve the purpose of oral cleaning. The water pump assembly 200 may include a transmission mechanism 210, a power source 220, and a pump mechanism 230. The power source 220 and the pump mechanism 230 are both installed on the transmission mechanism 210. In other words, the transmission mechanism 210 connects the power source 220 and the pump mechanism 230 into one body, so that they can be installed in the receiving chamber 110 as a whole, which is convenient for installation and operation. The transmission mechanism 210 has a first chamber 211, and the pump mechanism 230 has a second chamber 231 and a piston 232. The first chamber 211 is at least partially connected to the second chamber 231 located between the piston 232 and the first chamber 211, so that the transmission assembly located in the second chamber 231 can be connected to the piston 232 in the first chamber 211 to drive the piston 232 to reciprocate in the second chamber 231, thereby utilizing the reciprocating motion of the piston 232 to change the volume and pressure in the second chamber 231 to perform water inlet and outlet operations.

[0049] Considering that the power source 220 and the pump mechanism 230 are installed on the transmission mechanism 210, there must be a connection gap at the connection between the power source 220 and the pump mechanism 230 and the transmission mechanism 210 respectively. Therefore, a first seal 300 is provided at the connection between the power source 220 and the transmission mechanism 210, and the first seal 300 seals the connection gap between the transmission mechanism 210 and the power source 220. A second seal 400 is provided at the connection between the pump mechanism 230 and the transmission mechanism 210, and the second seal 400 seals the connection gap between the transmission mechanism 210 and the pump mechanism 230. In this way, when the liquid in the pump mechanism 230 accidentally leaks into the first chamber 211 through the piston 232, the first seal 300 and the second seal 400 seal the transmission mechanism 210 and the external connection, so that the first chamber 211 forms a relatively sealed space, thereby limiting the liquid leaking from the piston 232 into the first chamber 211 within the first chamber 211, preventing the liquid from leaking into the accommodating chamber 110 and causing the fault to spread, preventing damage to other electronic components in the accommodating chamber 110, and preventing the liquid from further leaking from the main housing 100 through the accommodating chamber 110 to the outside, affecting the user experience. At the same time, it can also prevent external liquid from flowing into the first chamber 211 through the connection between the power source 220 and the transmission mechanism 210, as well as the connection between the pump mechanism 230 and the transmission mechanism 210, and causing the risk of damaging the transmission components in the first chamber 211.

[0050] In one embodiment, the bottom of the transmission mechanism 210 may also be provided with at least one drain port 212 connected to the first chamber 211, so that the liquid that accidentally flows into the first chamber 211 can flow out through the drain port 212, and then be discharged to a preset position through the drain port 212, thereby avoiding the accumulation of liquid in the first chamber 211 and causing rust on the transmission components in the first chamber 211.

[0051] In practical applications, there may be one or more drain ports 212. The bottom surface of the first chamber 211 may be provided with an inclined surface structure inclined toward the drain port 212, or a recessed area may be formed around the drain port 212, so that the liquid in the first chamber 211 can gather at the drain port 212 and be discharged through the drain port 212.

[0052] The drain port 212 may also be connected to a drain pipe 2121, so that the liquid flowing out of the drain port 212 flows to a preset position under the guidance of the drain pipe 2121. In this way, the drain pipe 2121 can increase the flow distance of the liquid flowing out of the drain port 212, thereby increasing the selectable range of the preset position.

[0053] Regarding the specific location of the above-mentioned preset position, this application provides two achievable embodiments for reference.

[0054] In the first embodiment, the preset position can be any position outside the base station unit 1000 or the accommodating chamber 110. In this way, liquid that accidentally flows into the first chamber 211 can flow to the preset position outside the base station unit 1000 through the drain port 212 and the drain pipe 2121. In this way, overflow can be achieved within the range that the user can expect through the preset method, avoiding accidental overflow affecting the user experience. In addition, the wear debris generated during the operation of the transmission mechanism in the first chamber 211 can also be discharged through the drain port 212, preventing the liquid mixed with the debris from returning to the pump mechanism 230 through the piston 232, or returning to the water tank, and finally being discharged into the oral cleaner 2000, thereby affecting the user's oral cleaning experience.

[0055] In actual application, one end of the liquid discharge pipe 2121 can be connected to the liquid discharge port 212, and the other end can at least partially leak out or protrude from the outer surface of the main shell 100 to remind the user of the possible water discharge location.

[0056] In the second embodiment, the above-mentioned preset position can be at least one of the pump mechanism 230, the upstream of the pump mechanism 230 and the downstream of the pump mechanism 230. In this way, the liquid that accidentally flows into the first chamber 211 can be returned to the normal liquid flow path through the diversion effect of the discharge pipe 2121, and finally flow to the oral cleaner 2000 to participate in the oral cleaning action, thereby avoiding liquid waste and saving water resources.

[0057] In practical applications, a one-way valve may be connected in series with the liquid discharge pipe 2121, so that the liquid flowing out of the liquid discharge port 212 can flow unidirectionally to the aforementioned preset location under the guidance of the liquid discharge pipe 2121, thereby preventing the liquid from flowing back into the first chamber 211. The upstream of the pump mechanism 230 may be a water tank, a liquid inlet pipe connecting the water tank and the pump mechanism 230, etc. The downstream of the pump mechanism 230 may be a delivery pipeline connecting the pump mechanism 230 and the oral cleaner 2000, or the oral cleaner 2000, etc.

[0058] The main body of the transmission mechanism 210 may be integrally formed to ensure the sealing effect of the main body on the first chamber 211 and prevent the liquid entering the first chamber 211 from leaking through the gap in the main body of the transmission mechanism 210 .

[0059] However, in order to facilitate the installation and operation of the transmission components inside the transmission mechanism 210, the main body of the transmission mechanism 210 can also be designed as a split body. Figure 4 and Figure 5 As shown, in one feasible embodiment, the main body of the transmission mechanism 210 can be composed of a box body 213 and a bottom shell 214, that is, the transmission mechanism 210 can include a box body 213 and a bottom shell 214. The bottom of the box body 213 is provided with a first opening 2131, and the bottom shell 214 is connected to the box body 213 and at least partially covers the first opening 2131. When it is necessary to install the transmission assembly, the bottom shell 214 can be removed and the transmission assembly can be installed into the box body 213 through the first opening 2131. After the transmission assembly is installed, the bottom shell 214 is installed on the box body 213, and the bottom shell 214 blocks the first opening 2131. The bottom shell 214 and the box body 213 together surround and form the above-mentioned first chamber 211. A third seal 500 is provided at the connection between the box body 213 and the bottom shell 214. The third seal 500 seals the connection gap between the box body 213 and the bottom shell 214 to prevent liquid that accidentally flows into the first chamber 211 from leaking into the accommodating chamber 110 through the connection gap between the box body 213 and the bottom shell 214 through the third seal 500, thereby preventing the fault from spreading, and preventing damage to other electronic components in the accommodating chamber 110, and preventing the liquid from further leaking from the main shell 100 to the outside through the accommodating chamber 110, affecting the user experience.

[0060] In practical applications, the drain port 212 can be formed on the bottom shell 214 or the bottom of the housing 213, without specific limitation. The first seal 300, the second seal 400, and the third seal 500 can be made of a soft and elastic material such as rubber, silicone, or an elastomer, thereby utilizing its soft properties and ability to form a watertight seal and absorb sound waves generated during operation of the water pump assembly 200, thereby reducing vibration.

[0061] Of course, the first opening 2131 may also be provided at the top or side of the box body 213 , and accordingly, the bottom shell 214 may also be located at the top or side of the box body 213 .

[0062] Regarding the specific connection structure between the bottom shell 214 and the box body 213, as shown in FIG. Figure 5 and Figure 6 As shown, in one feasible embodiment, the outer wall of the bottom shell 214 is provided with an outwardly extending connecting plate 2141, and the bottom of the box body 213 is provided with a mating groove 2134 that mates with the connecting plate 2141. The bottom shell 214 is positioned and assembled on the box body 213 through the mating groove 2134 and the connecting plate 2141, thereby ensuring the accuracy of the assembly position of the bottom shell 214 and the box body 213. The outer wall of the box body 213 is also provided with a connecting post 2135. When the bottom shell 214 is mounted on the box body 213 through the mating groove 2134 and the connecting plate 2141, the bottom shell 214 is at least partially inserted into the first chamber 211, and the connecting plate 2141 is located directly below the connecting post 2135. The connecting plate 2141 can be connected to the connecting post 2135 via a second fastener to secure the bottom shell 214 to the box body 213.

[0063] It is worth mentioning that, by cooperating with the connecting plate 2141 and the mating groove 2134, the bottom of the mating groove 2134 can also limit the connecting plate 2141 in the vertical direction, so as to limit the depth of the bottom shell 214 inserted into the first chamber 211, thereby ensuring that the space reserved in the first chamber 211 is sufficient to install the transmission assembly.

[0064] In practical applications, the second fastener can be a screw. Accordingly, the connecting post 2135 can be provided with a threaded hole. The screw passes through the connecting plate 2141 and is threadedly connected to the threaded hole, thereby connecting the connecting plate 2141 to the connecting post 2135. The bottom shell 214 can be partially inserted into the first chamber 211, or the bottom shell 214 can be fully inserted into the first chamber 211. The number of mating slots 2134, connecting plates 2141, and connecting posts 2135 can be the same and their positions can correspond one to another. There can be one or more connecting plates 2141. When there are multiple connecting plates 2141, the multiple connecting plates 2141 can be arranged at equal or unequal intervals along the edge of the bottom shell 214.

[0065] Regarding the specific installation position of the third sealing member 500 , this application provides two feasible embodiments for reference.

[0066] Example 1: Figure 4 As shown, the third sealing member 500 is disposed around the outer wall of the bottom shell 214 and the inner wall of the box body 213 , so that the connection gap between the box body 213 and the bottom shell 214 is sealed by the third sealing member 500 .

[0067] In actual application, the outer wall surface of the bottom shell 214 is provided with a sealing ring groove surrounding the outer wall surface of the bottom shell 214. The third sealing component 500 is installed in the sealing ring groove and partially protrudes from the sealing ring. When the bottom shell 214 is connected to the box body 213, the third sealing component 500 abuts between the outer wall surface of the bottom shell 214 and the inner wall surface of the box body 213, thereby filling the connection gap between the bottom shell 214 and the box body 213.

[0068] Embodiment 2: An annular boss extending radially inward is provided on the inner wall surface of the box body 213 , and the third sealing member 500 abuts between the bottom shell 214 and the annular boss.

[0069] like Figures 7 to 9 As shown, in one embodiment, the top of the housing 213 is provided with an upwardly extending first mounting portion 215 and a shaft through-hole 2132 connecting the first chamber 211 and the inner cavity of the first mounting portion 215. The power source 220 is mounted in the inner cavity of the first mounting portion 215. The output shaft 221 of the power source 220 sequentially passes through the first sealing member 300 and the shaft through-hole 2132 and extends into the first chamber 211, so that the first sealing member 300 seals the gap between the output shaft 221 and the shaft through-hole 2132.

[0070] In this embodiment, the first seal 300 may be roughly in the shape of an inverted Chinese character "F", and may include an inner ring portion and an outer ring portion. The inner ring portion is located within the outer ring portion and abuts between the output shaft 221 and the inner wall of the shaft through-hole 2132, sealing the gap between the output shaft 221 and the shaft through-hole 2132. The outer ring portion abuts between the housing 213 and the power source 220, thereby securing the first seal 300 through the connection between the power source 220 and the housing 213 and preventing misalignment and failure of the first seal 300.

[0071] In actual application, the first mounting portion 215 can extend vertically upward from the housing 213, and the first mounting portion 215 can be constructed as a cylindrical structure, with the power source 220 inserted into the cylindrical structure. With such a configuration, in the absence of a drain port 212, even if the seal of the first seal 300 fails, the first mounting portion 215 is equivalent to increasing the height of the liquid outflow outlet. The liquid leaking from the first chamber 211 needs to climb to the height of the first mounting portion 215 before it can flow out of the water pump assembly 200, thereby reducing the possibility of liquid outflow and the spread of faults. Of course, the first mounting portion 215 can also be constructed as an incomplete annular or multi-segment circular arc plate structure, which is not specifically limited in this application.

[0072] The power source 220 may be connected to the first mounting portion 215 , thereby being mounted on the transmission mechanism 210 .

[0073] The power source 220 can also be directly connected to the box 213. For details, please refer to Figures 7 to 9 As shown, in a feasible embodiment, the top of the box body 213 can be provided with a connecting hole 2133 connecting the first chamber 211 and the inner cavity of the first mounting portion 215, and the power source 220 is connected to the box body 213 through the connecting hole 2133 and the first sealing member 300 via the first fastener 222, so that the gap between the first fastener 222 and the connecting hole 2133 is sealed by the first sealing member 300.

[0074] In this embodiment, the connecting through hole 2133 is located between the shaft through hole 2132 and the first mounting portion 215, the outer ring portion of the first seal 300 is laid on the connecting through hole 2133, and the first fastener 222 can be a screw. The first fastener 222 can pass through the connecting through hole 2133 and the outer ring portion of the first seal 300 from the first chamber 211 and be threadedly connected to the power source 220.

[0075] In practical applications, there can be one first fastener 222, and accordingly, one connecting through hole 2133. To ensure the connection stability between the power source 220 and the housing 213, there can also be multiple first fasteners 222 and connecting through holes 2133, such as two or three.

[0076] Considering that the power source 220 is located inside the first mounting part 215, it is not convenient to observe whether the threaded hole at the bottom of the power source 220 is aligned with the connecting through hole 2133. In a feasible embodiment, a positioning pin can also be provided on the top of the box body 213, and the power source 220 is positioned and installed in the first mounting part 215 through the positioning pin to facilitate the connection operation of the power source 220.

[0077] like Figure 4 、 Figure 7 、 Figure 8and Figure 10 As shown, in one feasible embodiment, the side wall of the housing 213 may further be provided with a second mounting portion 216 extending radially outward, and the inner cavity of the second mounting portion 216 is in communication with the first chamber 211. The transmission mechanism 210 is used to mount the pump mechanism 230 via the second mounting portion 216. Specifically, the pump mechanism 230 includes a drive housing 233, which surrounds and forms the second chamber 231 for accommodating and allowing the reciprocating motion of the piston 232. The drive housing 233 is at least partially inserted into the inner cavity of the second mounting portion 216, and the second sealing member 400 is disposed between the outer wall of the drive housing 233 and the inner wall of the second mounting portion 216.

[0078] In this embodiment, the second mounting portion 216 and the driving shell portion 233 may both be substantially cylindrical, so that the second sealing member 400 may use a conventional sealing ring to seal the gap between the driving shell portion 233 and the second mounting portion 216 .

[0079] In actual application, the outer wall surface of the driving shell 233 can be provided with a sealing ring groove, and the second sealing component 400 can be pre-installed in the sealing ring groove and inserted into the second mounting portion 216 together with the driving shell 233, so as to abut between the outer wall surface of the driving shell 233 and the inner wall surface of the second mounting portion 216, sealing the connection gap between the pump mechanism 230 and the transmission mechanism 210, and preventing the liquid from accidentally flowing out through the connection gap between the pump mechanism 230 and the transmission mechanism 210 to the outside of the water pump assembly 200, and the second sealing component 400 has an interference fit with the driving shell 233 and the second mounting portion 216, and can also make the pump mechanism 230 installed more firmly on the second mounting portion 216.

[0080] In a feasible embodiment, the piston 232 may directly contact the inner wall surface of the driving shell 233 to perform reciprocating motion.

[0081] In another optional embodiment, as Figure 10 As shown, a contact sleeve 234 can also be fixedly connected to the drive housing 233. The contact sleeve 234 has a cylindrical structure. The piston 232 is located within the contact sleeve 234. The inner wall of the contact sleeve 234 engages with the piston 232, thereby allowing the piston to move within the contact sleeve 234. The inner wall of the contact sleeve 234 has a roughness less than that of the inner wall of the drive housing 233, thereby reducing the friction caused by the movement of the piston 232.

[0082] Furthermore, the contact sleeve 234 may be made of a highly wear-resistant material, such as copper, stainless steel or other metal materials, thereby reducing the wear of the contact sleeve 234 caused by the piston 232 during the reciprocating motion of the piston 232 .

[0083] In a feasible embodiment, the box body 213, the first mounting part 215 and the second mounting part 216 can be integrally formed by injection molding, die casting, etc., so as to improve production efficiency and reduce costs. At the same time, the sealing effect between the box body 213, the first mounting part 215 and the second mounting part 216 can be ensured.

[0084] In another optional embodiment, the box body 213, the first mounting portion 215 and the second mounting portion 216 can also be designed separately or partially separately and then connected to each other.

[0085] Regarding the specific structure of the transmission mechanism 210, Figure 4 As shown, in one feasible embodiment, the transmission mechanism 210 may further include a connecting rod 218 and a transmission assembly 217 located in the first chamber 211. A first end of the transmission assembly 217 is connected to the output shaft 221, a second end of the transmission assembly 217 is connected to one end of the connecting rod 218, and the other end of the connecting rod 218 is connected to the piston 232, so that the power source 220 can drive the piston 232 to reciprocate through the transmission assembly 217 and the connecting rod 218.

[0086] In this embodiment, the transmission assembly 217 may include a master gear and a slave gear. The master gear is connected to the output shaft 221. The slave gear is rotatably connected to the housing 213 and / or the bottom shell 214. The slave gear meshes with the master gear and is eccentrically connected to an eccentric column. The eccentric column rotates eccentrically with the slave gear. One end of the connecting rod 218 is mounted on the eccentric column. Thus, when the power source 220 is in operation, the power source 220 drives the master gear to rotate via the output shaft 221, thereby driving the slave gear and the eccentric column on the slave gear to rotate. As the eccentric column rotates, the eccentric column drives the connecting rod 218 to reciprocate left and right, thereby driving the piston 232 connected to the connecting rod 218 to reciprocate left and right within the second chamber 231.

[0087] In practical applications, the main gear and the helical gear can be helical gears. Compared to spur gears, the shape of helical gears reduces noise and stress on the teeth, thereby reducing noise during operation. The top surface of the bottom shell 214 can have a support shaft column extending upward, and the slave gear and the eccentric column thereon can be mounted on the support shaft column, thereby using the support shaft column to limit the radial direction of the slave gear and the eccentric column thereon. When the bottom shell 214 is installed on the housing 213, the other end of the support shaft column can be inserted into the housing, so that the bottom shell 214 and the housing 213 simultaneously anchor the two ends of the support shaft column. This can provide stability and strength to the slave gear when it rotates due to being driven by the master gear.

[0088] Regarding the specific structure of the pump mechanism 230, in one feasible embodiment, the pump mechanism 230 may further include a pump housing, a water outlet assembly, and a water inlet assembly. The aforementioned drive housing 233 serves as part of the pump housing. The pump housing also includes a water inlet and a water outlet. The water inlet communicates with the water tank via the water inlet assembly, and the water outlet communicates with the delivery pipeline via the water outlet assembly. In actual use, the water inlet assembly may also be provided with a relief valve to prevent damage to components within the pump mechanism 230 due to excessive water pressure.

[0089] like Figure 11 As shown, in a feasible embodiment, the above-mentioned accommodating chamber 110 may include a first accommodating chamber 111 and a second accommodating chamber 112 that are isolated from each other, wherein the second accommodating chamber 112 is located below the first accommodating chamber 111, and the first accommodating chamber 111 can be used to accommodate the control components of the base station unit 1000, and the second accommodating chamber 112 can be used to accommodate the water-pumping assembly 200, so that when the water-pumping assembly 200 or the pipeline connected thereto accidentally leaks, since the first accommodating chamber 111 is located above the second accommodating chamber 112, the possibility of liquid seeping into the first accommodating chamber 111 can be reduced, thereby avoiding the spread of the fault.

[0090] Furthermore, the water-pumping assembly 200 is suspended in the second accommodating chamber 112, that is, there is a predetermined height between the water-pumping assembly 200 and the bottom of the main shell 100, and the water-pumping assembly 200 is suspended relative to the bottom of the main shell 100. In this way, an air or space gap can be formed between the water-pumping assembly 200 and the bottom of the main shell 100. This gap can serve as a vibration isolation layer to prevent the vibration of the water-pumping assembly 200 from being directly transmitted to the bottom of the main shell 100 in contact with the table surface where the base station unit 1000 is placed, thereby reducing the vibration transmission to the main shell 100.

[0091] In practical applications, the water pump assembly 200 can be suspended within the second accommodating chamber 112 by providing a first suspension bracket on top of the power source 220 and connecting the first suspension bracket to the main housing 100. Alternatively, the water pump assembly 200 can be suspended within the second accommodating chamber 112 by providing a second suspension bracket at the junction of the second mounting portion 216 and the drive housing portion 233 and connecting the second suspension bracket to the main housing 100.

[0092] Based on the same inventive concept, the present application also provides an oral care device, which includes at least a base unit 1000 and an oral cleaner 2000 for oral cleaning, wherein the base unit 1000 is connected to the oral cleaner 2000 via a delivery pipeline, and the base unit 1000 can deliver liquid to the oral cleaner 2000 via the delivery pipeline, so that the liquid is sprayed through the cleaning head of the oral cleaner 2000. The oral cleaner 2000 is a combination of an all-in-one irrigator and an oral irrigator.

[0093] When the oral cleaner 2000 is an all-in-one flushing device, the cleaning head can be a brush head with bristles, a nozzle, or a brush head with both bristles and a nozzle. A second power assembly can be provided within the main body of the oral cleaner 2000. The second power assembly includes a motor body that receives a drive shaft for the cleaning head and rotates and / or applies vibration to the drive shaft. The drive shaft can be hollow to provide a fluid channel to facilitate fluid flow from the drive shaft into the cleaning head for flushing.

[0094] In actual application, the base station unit 1000 may also have an installation position, and the oral cleaner 2000 can be detachably connected to the base station unit 1000 through magnetic adsorption, hanging or buckling at the installation position, so that when the oral cleaner 2000 is idle, the oral cleaner 2000 can be stored and organized together with the base station unit 1000.

[0095] It should be noted that the specific structure of the base station unit 1000 can be referred to the detailed description in the above embodiment, and will not be repeated here.

[0096] Based on the same inventive concept, the present application also provides a water pump assembly 200, which includes at least a transmission mechanism 210, a power source 220, and a pump mechanism 230. The transmission mechanism 210 has a first chamber 211. The power source 220 and the pump mechanism 230 are mounted on the transmission mechanism 210, and the pump mechanism 230 has a second chamber 231 and a piston 232 that reciprocates in the second chamber 231. A first seal 300 is provided at the connection between the transmission mechanism 210 and the power source 220, and a second seal 400 is provided at the connection between the transmission mechanism 210 and the pump mechanism 230, so as to confine liquid leaking from the pump mechanism 230 and the piston 232 to the first chamber 211.

[0097] Furthermore, at least one drain port 212 communicating with the first chamber 211 is provided at the bottom of the transmission mechanism 210 . The drain port 212 is used to discharge the liquid in the first chamber 211 to a preset position.

[0098] It should be pointed out that the specific structure of the water pump assembly 200 can be referred to the detailed description in the above embodiment, and will not be repeated here.

[0099] Among them, the terms "upper" and "lower" are used to describe the relative position relationship of each structure in the accompanying drawings, which is only for the convenience of description and is not used to limit the scope of implementation of this application. Changes or adjustments to their relative relationships should also be regarded as the scope of implementation of this application without substantially changing the technical content.

[0100] It should be noted that, in this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, a first feature being "above," "above," and "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. A first feature being "below," "below," and "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0101] Furthermore, in this application, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connected," "fixed," and the like should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; they may refer to direct connection or indirect connection through an intermediate medium; they may refer to internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0102] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0103] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A base station unit, characterized in that: The base station unit (1000) comprises at least: A main housing (100) having an outer wall and a receiving chamber (110) surrounded by the outer wall; A water pump assembly (200) is installed in the accommodating chamber (110), the water pump assembly (200) comprising a transmission mechanism (210), a power source (220) and a pump mechanism (230) connected to the transmission mechanism (210), the transmission mechanism (210) having a first chamber (211), the pump mechanism (230) having a second chamber (231) and a piston (232) performing reciprocating motion in the second chamber (231); A first seal (300) is provided at the connection between the transmission mechanism (210) and the power source (220), and a second seal (400) is provided at the connection between the transmission mechanism (210) and the pump mechanism (230).

2. The base station unit according to claim 1, wherein: The bottom of the transmission mechanism (210) is provided with at least one liquid discharge port (212) in communication with the first chamber (211), and the liquid discharge port (212) is used to discharge the liquid in the first chamber (211) to a preset position.

3. The base station unit according to claim 2, wherein: The liquid discharge port (212) is connected to a liquid discharge pipe (2121), so that the liquid flowing out of the liquid discharge port (212) flows to the preset position under the guidance of the liquid discharge pipe (2121); The preset position is located outside the base station unit (1000).

4. The base station unit according to claim 2, wherein: The liquid discharge port (212) is connected to a liquid discharge pipe (2121), and the liquid discharge pipe (2121) is connected in series with a one-way valve, so that the liquid flowing out of the liquid discharge port (212) flows in a one-way direction to the preset position under the guidance of the liquid discharge pipe (2121); The preset position is at least one of the pump mechanism (230), upstream of the pump mechanism (230), and downstream of the pump mechanism (230).

5. The base station unit according to any one of claims 1 to 4, characterized in that: The transmission mechanism (210) includes a box body (213) and a bottom shell (214), wherein: The box body (213) is provided with a first opening (2131); the bottom shell (214) is connected to the box body (213) and at least partially covers the first opening (2131); the box body (213) and the bottom shell (214) together surround and form the first chamber (211); and a third sealing member (500) is provided at the connection between the box body (213) and the bottom shell (214).

6. The base station unit according to claim 5, characterized in that The top of the box body (213) is provided with a first mounting portion (215) extending upward, and an axial through hole (2132) communicating with the first chamber (211) and the first mounting portion (215); The power source (220) is at least partially mounted on the first mounting portion (215), and the output shaft (221) of the power source (220) sequentially passes through the first sealing member (300) and the shaft through-hole (2132) and extends into the first chamber (211), so that the first sealing member (300) seals the gap between the output shaft (221) and the shaft through-hole (2132).

7. The base station unit according to claim 6, characterized in that A connecting through hole (2133) communicating with the first chamber (211) and the first mounting portion (215) is provided on the top of the box body (213); The power source (220) is connected to the box body (213) through the first fastener (222) passing through the connecting through hole (2133) and the first sealing member (300), so that the first sealing member (300) seals the gap between the first fastener (222) and the connecting through hole (2133).

8. The base station unit according to claim 6, wherein: A second mounting portion (216) extending outward is provided on a side wall of the box body (213), and an inner cavity of the second mounting portion (216) is in communication with the first chamber (211); The pump mechanism (230) has a drive shell (233), the drive shell (233) surrounds and forms the second chamber (231), the drive shell (233) is at least partially inserted into the inner cavity of the second mounting portion (216), and the second sealing member (400) is arranged between the outer wall surface of the drive shell (233) and the inner wall surface of the second mounting portion (216).

9. The base station unit according to claim 8, characterized in that The box body (213), the first mounting portion (215) and the second mounting portion (216) are integrally formed.

10. The base station unit according to claim 5, characterized in that The transmission mechanism (210) further includes a connecting rod (218) and a transmission assembly (217) located in the first chamber (211); The first end of the transmission assembly (217) is connected to the output shaft (221) of the power source (220), the second end of the transmission assembly (217) is connected to one end of the connecting rod (218), and the other end of the connecting rod (218) is connected to the piston (232), so that the power source (220) drives the piston (232) to reciprocate through the transmission assembly (217) and the connecting rod (218).

11. The base station unit according to claim 5, characterized in that The outer wall surface of the bottom shell (214) is provided with a connecting plate (2141) extending outward; The bottom of the box body (213) is provided with a matching groove (2134) that matches the connecting plate (2141), and the outer wall surface of the box body (213) is provided with a connecting column (2135); When the bottom shell (214) is mounted on the box body (213) through the connection plate (2141) and the matching groove (2134), the bottom shell (214) is at least partially inserted into the first chamber (211), and the connection plate (2141) is connected to the connection column (2135) through a second fastener.

12. The base station unit according to claim 5, wherein: The third sealing member (500) is provided between the outer wall surface of the bottom shell (214) and the inner wall surface of the box body (213), so that the third sealing member (500) seals the connection gap between the box body (213) and the bottom shell (214).

13. The base station unit according to any one of claims 1 to 4, characterized in that: The accommodating chamber (110) comprises a first accommodating chamber (111) and a second accommodating chamber (112) which are isolated from each other, wherein: The second accommodating chamber (112) is located below the first accommodating chamber (111), and the water pump assembly (200) is suspended in the second accommodating chamber (112).

14. An oral care device, characterized in that The oral care device comprises at least the base station unit (1000) and the oral cleaner (2000) according to any one of claims 1 to 13, wherein: The base station unit (1000) is connected to the oral cleaner (2000) via a delivery pipeline, and the base station unit (1000) can deliver liquid to the oral cleaner (2000) via the delivery pipeline, so that the liquid is sprayed out through the cleaning head of the oral cleaner (2000).

15. A water pump assembly, characterized in that: The water pump assembly (200) comprises at least a transmission mechanism (210), a power source (220) and a pump mechanism (230); The transmission mechanism (210) has a first chamber (211); The power source (220) and the pump mechanism (230) are installed on the transmission mechanism (210), and the pump mechanism (230) has a second chamber (231) and a piston (232) that reciprocates in the second chamber (231); A first seal (300) is provided at the connection between the transmission mechanism (210) and the power source (220), and a second seal (400) is provided at the connection between the transmission mechanism (210) and the pump mechanism (230) to confine liquid leaking from the pump mechanism (230) and from the piston (232) to the first chamber (211).

16. The water pump assembly according to claim 15, characterized in that: The bottom of the transmission mechanism (210) is provided with at least one liquid discharge port (212) in communication with the first chamber (211), and the liquid discharge port (212) is used to discharge the liquid in the first chamber (211) to a preset position.

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