Base station unit, oral care equipment and water pumping assembly

Abstract

The invention 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, an oral care device and a water pump assembly. Background Art

[0002] In the related art, water flossers use a water pump assembly to generate high-speed water flow or pulsed water flow, which can penetrate deep into the hard-to-clean areas of teeth and gums to 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. Summary of the invention

[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 the 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 that a first seal is provided at the connection between the power source and the transmission mechanism, and a second seal is provided at the connection between the pump mechanism and the transmission mechanism, 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 so that the first chamber forms a relatively sealed space, so that the liquid leaking from the piston into the first chamber can be confined in 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 housing 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, so that the pump-water assembly can be installed in an integrated manner in the accommodating chamber, which is convenient for installation operation.

[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 liquid discharge port is connected to a liquid discharge pipe, so that the liquid flowing out of the liquid discharge port flows to the preset position under the guidance of the liquid discharge 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 surround and 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 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 through 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 through hole and the first sealing member, so that the first sealing member seals the gap between the first fastener and the connecting through 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 in the inner cavity of the second mounting portion, and the second sealing member is arranged 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 chamber, and the connecting plate is connected to the connecting column through a second fastener.

[0018] Optionally, the third sealing member is disposed 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 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 comprises at least the above-mentioned base station unit and an 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 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 comprises 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 leaking 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 briefly introduces 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 creative work.

[0024] Figure 1 is a schematic structural diagram of an oral care device in one embodiment provided by the present application;

[0025] Figure 2 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 is a three-dimensional schematic diagram of a water pump assembly in one embodiment provided by the present application;

[0027] Figure 4 It 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 is an exploded schematic diagram of a water pump assembly in one embodiment provided in the present application;

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

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

[0031] Figure 8 It is a half-section schematic diagram of a part of the mechanism of a water pump assembly in one embodiment provided by the present application;

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

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

[0034] Fig.11 It is a half-section schematic diagram of a main housing and a 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, 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, matching 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 shell; 234, contact sleeve;

[0039] 300, a first sealing member;

[0040] 400, second sealing member;

[0041] 500. The third seal. DETAILED DESCRIPTION

[0042] With the development of oral cleaning equipment, more and more oral cleaning equipment with different functions have been produced, such as water flossers with only rinsing function and water flossers with both rinsing and brushing functions. When the above two types of equipment are used for rinsing, the base station unit needs to provide water flow to output water flow impact, so as to flush away food residues, bacteria, tartar, stains and other substances harmful to dental health attached to the gums of teeth, so as to achieve the effect of oral health care.

[0043] In the related art, oral cleaning equipment uses a water pump assembly to generate high-speed water flow or pulse water flow, which can penetrate into the hard-to-clean areas of teeth and gums and effectively remove food debris and bacteria. However, most water pump assemblies achieve water inlet and outlet by changing the volume and pressure of the cavity in the pump body through the reciprocating motion of the piston in the pump body. After a long period of movement, the piston may cause damage to the piston seal, such as wear and deformation of the seal, which may cause the liquid in the pump body to leak out through the damaged piston, posing a risk of damage to the electronic components in the base station unit.

[0044] In view of the above technical problems, the inventor of the present application has thought of arranging the water pump assembly below the base station unit and arranging other electronic components in the base station unit above the base station unit, and preventing the liquid accidentally leaked from the water pump assembly from flowing into the electronic components and causing damage to the electronic components by means of upper and lower spacing and by utilizing the gravity of the liquid itself. However, this method will still cause the leaked liquid to overflow to the outside of the base station unit, affecting the user's experience, and as the user moves the handheld device, the internal liquid will also shake or even turn upside down, causing the leaked liquid to contact the electronic components and cause damage. For this reason, the inventor of the present application has found through research that when the liquid leaks through the piston, the liquid will be exposed through the connection gap between the gear box and the motor, the connection gap between the gear box and the pump body, and the assembly gap of the gear box itself. Therefore, the inventor of the present application further sets a sealing structure at the above gaps to seal the liquid leaked through the piston inside the gear box, 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 preventing the liquid from being immersed in the gear box for a long time, causing the gears in the gear box to rust, and the debris in the gear box from flowing into the pump body through the liquid immersed in the gear box, and then entering 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 charges the oral cleaner 2000 through the charging module, which is not specifically limited in the present application.

[0047] Please also see Figures 1 to 4 In an achievable implementation, the base station unit 1000 may include at least a main housing 100, which serves as the main body of the base station unit 1000 and can support and protect other components of the base station unit 1000 except the main housing 100. The main housing 100 has an outer wall and a receiving chamber 110 surrounded by the outer wall.

[0048] In this embodiment, the base unit 1000 may further include a water pump assembly 200 installed in the accommodating chamber 110. The water pump assembly 200 serves as the power part of the liquid supply system in the base 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 as a whole, so that they are easily installed in the accommodating 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 component 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 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, so that the liquid leaking from the piston 232 into the first chamber 211 can be confined in 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 the external liquid from flowing into the first chamber 211 through the connection between the power source 220 and the transmission mechanism 210, and the connection between the pump mechanism 230 and the transmission mechanism 210, and the risk of damaging the transmission components in the first chamber 211.

[0050] In one implementation, 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 liquid that accidentally flows into the first chamber 211 can flow out through the drain port 212 and be discharged to a preset position through the drain port 212, thereby preventing the liquid from accumulating 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 concave 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] Embodiment 1: The above-mentioned preset position can be any position outside the base station unit 1000 or the accommodating chamber 110. In this way, the 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, avoiding the liquid mixed with the debris from returning to the pump mechanism 230 again through the piston 232, or returning to the water tank, and finally 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] Embodiment 2: 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 to the liquid discharge pipe 2121, so that the liquid flowing out of the liquid discharge port 212 can flow to the above-mentioned preset position in one direction 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 connected between the water tank and the pump mechanism 230, etc. The downstream of the pump mechanism 230 may be a delivery pipeline connected between 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 formed in one piece, thereby ensuring the sealing effect of the main body on the first chamber 211 and preventing the liquid entering the first chamber 211 from leaking out 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 may also be designed to be split. Figure 4 and Figure 5 As shown, in an achievable embodiment, the main body of the transmission mechanism 210 may be composed of a box body 213 and a bottom shell 214, that is, the transmission mechanism 210 may include a box body 213 and a bottom shell 214. Among them, 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 are surrounded together to 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, and the third seal 500 is used to seal 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, thereby affecting the user experience.

[0060] In practical applications, the drain port 212 can be formed on the bottom shell 214, or on the bottom of the box 213, which is not specifically limited here. The first seal 300, the second seal 400, and the third seal 500 can be supported by materials with soft elasticity such as rubber, silicone, and elastomer, so as to form a watertight seal by using its soft properties and capabilities, and can also absorb sound waves generated during the operation of the pump assembly 200, thereby reducing vibration.

[0061] Of course, the first opening 2131 may also be disposed on the top or side of the box body 213 , and correspondingly, the bottom shell 214 may also be located on 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 an achievable embodiment, the outer wall surface of the bottom shell 214 is provided with a connecting plate 2141 extending outward, and the bottom of the box body 213 is provided with a matching groove 2134 matching with the connecting plate 2141. The bottom shell 214 is positioned and assembled on the box body 213 through the matching of the connecting plate 2141 and the matching groove 2134, thereby ensuring the accuracy of the assembly position of the bottom shell 214 and the box body 213. The outer wall surface of the box body 213 is also provided with a connecting column 2135. When the bottom shell 214 is mounted on the box body 213 through the matching of the connecting plate 2141 and the matching groove 2134, 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 column 2135. The connecting plate 2141 can be connected to the connecting column 2135 through a second fastener to fix the bottom shell 214 on the box body 213.

[0063] It is worth mentioning that, through the cooperation between the connecting plate 2141 and the matching groove 2134, the bottom of the matching 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 may be a screw, and accordingly, a threaded hole may be provided on the connecting column 2135, and 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 column 2135. The bottom shell 214 may be partially inserted into the first chamber 211, and the bottom shell 214 may be fully inserted into the first chamber 211. The number of the matching grooves 2134, the connecting plates 2141, and the connecting columns 2135 may be the same and the positions may correspond one to one. The connecting plates 2141 may have one or more. When there are multiple connecting plates 2141, the multiple connecting plates 2141 may 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 , the present application provides two achievable embodiments for reference.

[0066] Embodiment 1: Figure 4 As shown, the third sealing member 500 is disposed around the outer wall surface of the bottom shell 214 and the inner wall surface 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, and 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 an implementation, the top of the box body 213 is provided with a first mounting portion 215 extending upward and a shaft through-hole 2132 communicating the first chamber 211 with 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, 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.

[0070] In this embodiment, the first seal 300 may be roughly in the shape of an inverted "J", and include an inner ring portion and an outer ring portion, wherein the inner ring portion is located inside the outer ring portion, and the inner ring portion abuts between the output shaft 221 and the inner wall surface 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, so that the first seal 300 is fixed by the connection between the power source 220 and the housing 213, thereby preventing the first seal 300 from being misaligned and causing failure.

[0071] In practical applications, 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, and the power source 220 is inserted into the cylindrical structure. In this arrangement, when the drain port 212 is not provided, 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, and the liquid leaking from the first chamber 211 needs to climb 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 reducing the spread of faults. Of course, the first mounting portion 215 can also be constructed as an incomplete annular or multi-segment 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 , so as to be 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, a connecting hole 2133 connecting the first chamber 211 and the inner cavity of the first mounting portion 215 may be provided on the top of the box body 213, 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, one first fastener 222 may be used, and accordingly, one connecting through hole 2133 may also be provided. In order to ensure the connection stability between the power source 220 and the housing 213, there may 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 portion 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 portion 215 by the positioning pin to facilitate the connection operation of the power source 220.

[0077] like Figure 4 , Figure 7 , Figure 8and Fig.10 As shown, in an achievable embodiment, the side wall of the box body 213 may also be provided with a second mounting portion 216 extending radially outward, and the inner cavity of the second mounting portion 216 is communicated with the first chamber 211. The transmission mechanism 210 is used to install the pump mechanism 230 through the second mounting portion 216. Specifically, the pump mechanism 230 has a driving shell 233, which surrounds and forms the second chamber 231 for accommodating and reciprocating the piston 232. The driving shell 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 surface of the driving shell 233 and the inner wall surface 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 applications, 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, thereby sealing the connection gap between the pump mechanism 230 and the transmission mechanism 210, and preventing accidental outflow of liquid from flowing 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 on the second mounting portion 216 more secure.

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

[0081] In another optional embodiment, if Fig.10 As shown, a contact sleeve 234 may be fixedly connected to the driving shell 233. The contact sleeve 234 is a cylindrical structure. The piston 232 is located in the contact sleeve 234. The inner wall surface of the contact sleeve 234 cooperates with the piston 232, so that the piston moves in the contact sleeve 234. The roughness of the inner wall surface of the contact sleeve 234 is less than that of the inner wall surface of the driving shell 233, so that the friction of the piston 232 movement is reduced by the contact sleeve 234.

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

[0083] In a feasible implementation, 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 implementation, the box body 213, the first mounting portion 215 and the second mounting portion 216 may 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 an achievable embodiment, the transmission mechanism 210 may further include 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, 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 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 is meshed with the master gear, and the slave gear is eccentrically connected to an eccentric column, the eccentric column follows the rotation of the slave gear to make an eccentric movement, and one end of the connecting rod 218 is sleeved on the eccentric column. In this way, when the power source 220 is running, the power source 220 drives the master gear to rotate through the output shaft 221, thereby driving the slave gear and the eccentric column on the slave gear to rotate. With the rotation of the eccentric column, 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 in the second chamber 231.

[0087] In practical applications, the main gear and the bevel gear can be spiral gears. Compared with spur gears, the shape of spiral gears reduces noise and stress on the teeth, thereby reducing noise during operation. The top surface of the bottom shell 214 can be provided with a support shaft column extending upward, and the slave gear and the eccentric column thereon can be sleeved on the support shaft column, so that the radial direction of the slave gear and the eccentric column thereon can be limitedly supported by the support shaft column. When the bottom shell 214 is installed on the box body 213, the other end of the support shaft column can be inserted into the box body, so that the two ends of the support shaft column are anchored by the bottom shell 214 and the box body 213 at the same time, which can provide stability and strength to the slave gear when the slave gear rotates due to being driven by the main gear.

[0088] Regarding the specific structure of the pump mechanism 230, in an achievable implementation, the pump mechanism 230 may further include a pump housing body, a water outlet assembly, and a water inlet assembly. The above-mentioned drive housing 233 is a part of the pump housing body. The pump housing body is also provided with a water inlet and a water outlet. The water inlet is connected to the water tank through the water inlet assembly, and the water outlet is connected to the delivery pipeline through the water outlet assembly. In actual applications, an overflow valve may also be provided on the water inlet assembly to prevent damage to the components inside the pump mechanism 230 due to excessive water pressure.

[0089] like Fig.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 which 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 has an accidental leakage, 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 faults.

[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 that is 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 in the second accommodating chamber 112 by providing a first suspension bracket on the top of the power source 220 and connecting the first suspension bracket to the main housing 100. And / or, the water pump assembly 200 can be suspended in the second accommodating chamber 112 by providing a second suspension bracket at the connection between the second mounting portion 216 and the driving 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 at least includes a base unit 1000 and an oral cleaner 2000 for oral cleaning, wherein the base unit 1000 is connected to the oral cleaner 2000 through a delivery pipeline, and the base unit 1000 can deliver liquid to the oral cleaner 2000 through the delivery pipeline, so that the liquid is sprayed out through the cleaning head of the oral cleaner 2000. The oral cleaner 2000 is one of an all-in-one irrigator and a water flosser.

[0093] When the oral cleaner 2000 is a flushing machine, 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 in the main body of the oral cleaner 2000, and the second power assembly includes a motor body that receives a drive shaft of the cleaning head, rotates the drive shaft, and / or applies vibration to the drive shaft. The drive shaft can be hollow to provide a fluid channel to facilitate the fluid to enter the cleaning head from the drive shaft to perform the flushing operation.

[0094] In actual applications, 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 by 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 refer to the detailed description in the above embodiment, which will not be repeated here.

[0096] Based on the same inventive concept, the present application also provides a water pump assembly 200, which at least includes 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. Among them, 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 limit the 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 , and 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 refer to the detailed description in the above embodiment, which 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 the present application. Changes or adjustments to their relative relationships should also be regarded as the scope of implementation of the present application without substantially changing the technical content.

[0100] It should be noted that: in this application, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the 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 higher in level than the second feature. The first feature being "below", "below" and "below" the 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 lower in level than the second feature.

[0101] In addition, in this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0102] In the description of this specification, the description with reference to the terms "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 schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[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 it. 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 replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate 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) that reciprocates in the second chamber (231); Wherein, 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, characterized in that: The bottom of the transmission mechanism (210) is provided with at least one liquid discharge port (212) which is 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, characterized in that: 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, characterized in that: 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 unidirectionally 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) comprises 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) connecting 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) passes through the first sealing member (300) and the shaft through hole (2132) in sequence 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 housing (213) via a first fastener (222) passing through the connecting through hole (2133) and the first sealing member (300), so that the first sealing member (300) seals a gap between the first fastener (222) and the connecting through hole (2133).

8. The base station unit according to claim 6, characterized in that: The side wall of the box body (213) is provided with a second mounting portion (216) extending outward, and the inner cavity of the second mounting portion (216) is in communication with the first chamber (211); The pump mechanism (230) has a driving shell (233), which surrounds the second chamber (231). The driving 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 driving 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 perform reciprocating motion 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 outwards; The bottom of the box body (213) is provided with a matching groove (2134) matching with 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 installed on the box body (213) by cooperating with the connecting plate (2141) and the matching groove (2134), the bottom shell (214) is at least partially inserted into the first chamber (211), and the connecting plate (2141) is connected to the connecting column (2135) through a second fastener.

12. The base station unit according to claim 5, characterized in that: The third sealing member (500) is disposed 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 leftward 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 limit the 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) which is 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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