Electric toothbrush with sterilization protection function

Abstract

The application discloses a kind of electric oral irrigator of sterilization protection function, including spray head, host and water tank component, the spray head is installed in the below of host, the water tank component is installed in the above of spray head;The host includes shell, display lamp shade and top cover, the spray head helical connection is on top cover, the display lamp shade is connected with shell by multiple first self-tapping screw, water pump support assembly is equipped in the shell, water pump body is equipped in the water pump support assembly, hose is equipped in the water tank component, suction head is connected on the hose, the water inlet end of the suction head is equipped with suction head filter screen.The application has the advantages of efficient sterilization, safe leak-proof, good waterproof sealing effect and convenient use, thereby solving the technical problems that existing oral irrigator itself is easy to breed microorganism, UVC sterilization light is easy to leak, waterproof assembly effect is poor, cleaning and maintenance are inconvenient, etc., improving the use safety and practicality of oral irrigator.

Description

Technical Field

[0001] This invention relates to the field of electric oral irrigators, and more particularly to an electric oral irrigator with sterilization and protective functions. Background Technology

[0002] A water flosser, also known as a dental irrigator, is a personal care device that uses pulsating water flow to clean the mouth. It can precisely clean areas that are difficult for traditional toothbrushes to reach, such as between teeth, gingival sulcus, and braces, effectively removing food debris and plaque. It plays an important role in preventing gingivitis, improving the oral microenvironment, and maintaining oral health, and has become an important tool for daily oral care for more and more consumers.

[0003] However, in actual use, existing electric water flossers suffer from long-overlooked but crucial technical defects. The overall structural design of current electric water flossers suffers from cumbersome assembly and poor sealing. The internal components, such as the water pump, control board, and battery, are complex to fix, and the sealing structure of each connection point is poorly designed, making them prone to leakage. Furthermore, the water tank is often a fully detachable filling structure, making water filling cumbersome for users. Poor pressure balance after tank assembly also leads to overflow when the device is tilted, further reducing the user experience. In addition, after use, moisture remains in the internal water pipes. Current devices lack specific drying and cleaning mechanisms, and this residual moisture can breed microorganisms, creating a continuous source of contamination. The nozzle is also prone to dirt and water stains after use, lacking a convenient cleaning method, affecting the hygiene of subsequent use.

[0004] Therefore, it is necessary to design an electric water flosser with sterilization and protection functions to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an electric water flosser with sterilization and protection functions. This invention combines the advantages of efficient sterilization, safe leakage prevention, good waterproof sealing effect, and convenient use, thereby solving the technical problems of existing water flossers such as easy growth of microorganisms, easy leakage of UVC sterilization light, poor waterproof assembly effect, and inconvenient cleaning and maintenance, thus improving the safety and practicality of water flossers.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An electric oral irrigator with sterilization and protection functions includes a nozzle, a main unit, and a water tank assembly, wherein the nozzle is installed below the main unit and the water tank assembly is installed above the nozzle;

[0008] The main unit includes a housing, a display lamp cover, and a top cover. The nozzle is spirally connected to the top cover. The display lamp cover is connected to the housing by a plurality of first self-tapping screws. A water pump bracket assembly is provided inside the housing. A water pump body is provided inside the water pump bracket assembly. A hose is provided inside the water tank assembly. A suction head is connected to the hose. A suction head filter screen is provided at the water inlet end of the suction head.

[0009] The water tank assembly includes a water tank shell, a water tank bottom cover connected to the upper end of the water tank shell, a nameplate sticker on the water tank bottom cover, a water inlet on the side of the water tank shell, a water inlet cover on the water inlet, a first O-ring on the water inlet cover, a cylindrical magnet embedded in the lower end of the water tank shell, a water tank magnet cover installed at the lower end of the water tank shell, a curved pipe connected to the water tank shell, and a duckbill valve on the water tank shell.

[0010] Preferably, the housing is provided with an adjustment button, a mode button and a switch button, the outer side of the housing is provided with a switch decorative ring, the housing is embedded with a digital display screen, the water pump bracket assembly is installed in the housing by a second self-tapping screw, the second self-tapping screw is fitted with a screw hole plug, the housing is provided with a nozzle button, the nozzle button is positioned corresponding to the switch button, and the nozzle button and the switch button are elastically connected by a nozzle spring.

[0011] Preferably, the water pump bracket assembly includes a charging wire, a charging board, a charging plug, a water pump mounting bracket, a second O-ring, a third O-ring, a fourth O-ring, a lens, a fifth O-ring, a disinfection lamp plate, a pull rod, a main control board, a polymer battery, a rubber tube, a pipe joint, and a sixth O-ring. The disinfection lamp plate is mounted on the water pump mounting bracket with a second self-tapping screw. The second, third, fourth, lens, and fifth O-rings are located between the water pump mounting bracket and the disinfection lamp plate. The pull rod is mounted on the water pump mounting bracket with a third self-tapping screw. The main control board is mounted on the pull rod. The water pump body is mounted on the main control board. The water pump body is connected to a flexible hose through a rubber tube. The outlet end of the water pump body is connected to a pipe joint. A sixth O-ring is provided between the pipe joint and the water pump body.

[0012] Preferably, it also includes a base for storing the water flosser. The upper end of the base has a placement slot, and the outer side of the base has a control switch. The base has an installation cavity, and a hot air pump is installed in the installation cavity. The air outlet of the hot air pump is connected to a connecting pipe. The side wall of the installation cavity has multiple air inlets. The base has a transmission cavity, and the connecting pipe extends into the transmission cavity. The upper end of the connecting pipe is spirally connected to a spiral connector, and the upper end of the spiral connector extends to the outside. The outer wall of the bent pipe has a threaded layer.

[0013] Preferably, a servo motor is installed in the mounting cavity, a rotating rod is vertically rotatably connected in the transmission cavity, a bevel gear is fixedly connected to the output shaft of the servo motor and they mesh with each other, a first gear is connected to the rotating rod through a first one-way bearing, and a second gear that meshes with the first gear is fixedly connected to the spiral joint.

[0014] Preferably, the placement slot is provided with a wiping assembly, which includes a U-shaped frame. Mounting brackets are fixedly connected to the inner walls of the front and rear sides of the U-shaped frame. A slide rail is fixedly connected to the mounting bracket. A cylinder is fixedly connected to the mounting bracket. A slider is slidably connected to the slide rail. The telescopic end of the cylinder is fixedly connected to the slider. A crossbar is rotatably connected to the adjacent sides of the two sliders. A wiping ring is fixedly connected to the adjacent sides of the two crossbars.

[0015] Preferably, the slider on the left side is provided with an angle adjustment component, which includes a rectangular box fixedly connected to the slider, an electromagnet fixedly connected to the inner wall of the rectangular box, a movable block slidably connected inside the rectangular box, the movable block and the electromagnet being elastically connected by a return spring, a rack fixedly connected to the movable block, a crossbar passing through the rectangular box, and a third gear fixedly connected to the crossbar.

[0016] Preferably, the device further includes a lifting assembly, which includes a reciprocating lead screw rotatably connected to the top of the transmission cavity. A lifting block is threaded onto the reciprocating lead screw. A rectangular opening is provided between the transmission cavity and the placement slot. The lifting block passes through the rectangular opening and is fixedly connected to the U-shaped frame. The reciprocating lead screw and the rotating rod are connected by a transmission assembly. The transmission assembly consists of two sprockets and a chain. A second one-way bearing is provided between the rotating rod and the sprockets.

[0017] The present invention has the following beneficial effects:

[0018] 1. Compared with the prior art, the present invention adopts a multi-layer sealing structure design, and seals key parts such as water pump components, indicator lamp cover, and charging port through sealing rings, soft rubber, silicone screw hole plugs, and glue sealing. The main unit achieves an IPX7 waterproof rating, and there are no exposed screws. This not only solves the waterproof problem of the water flosser control part and water-contacting parts, but also prevents internal components from being damaged by water, extends the service life of the equipment, and ensures the visual aesthetics of the product.

[0019] 2. Compared with the prior art, the present invention integrates components such as control board, battery, and water pump on water pump bracket and fixes them with tie rod. Each structural component is connected with standardized screws, making the assembly process simple and efficient. At the same time, the side of the water tank is equipped with an independently openable water tank cover, which can complete the water filling operation without disassembling the water tank. With the duckbill valve built into the water tank, it can balance the air pressure inside the water tank and prevent water from overflowing when the equipment is tilted, thus taking into account both the convenience of production assembly and the convenience of user use.

[0020] 3. Compared with the existing technology, the present invention is equipped with a special storage base. The base integrates automatic connection, nozzle wiping and internal pipe drying functions. The servo motor drives the spiral connector to automatically connect with the water flosser's bent pipe, eliminating the need for manual docking and realizing automated linkage of cleaning and drying. This replaces the tedious operation of manual cleaning and greatly improves the convenience of cleaning and maintenance after the equipment is used.

[0021] 4. Compared with the prior art, the wiping component of the base of the present invention can realize the lifting and lowering of the wiping ring and the adaptive adjustment of the angle through the cooperation of the cylinder, electromagnet and angle adjustment component. First, the bent part of the nozzle is wiped at an angle, and then the vertical part is wiped horizontally. It fits the overall structure of the nozzle to complete all-round wiping without dead angles, effectively removing stains, water stains and residual dental plaque attached to the nozzle surface, preventing the nozzle from becoming a breeding point for microorganisms, and further improving the cleanliness and hygiene of the equipment.

[0022] 5. Compared with existing technologies, this invention uses a disinfection lamp plate to specifically sterilize the inside of the water tank, effectively inhibiting the growth of harmful microorganisms such as bacteria, mold, and algae. This prevents microbial contamination of the water in the water flosser from the source, avoiding the risk of infection caused by using contaminated water to clean the mouth, ensuring the hygiene of oral hygiene, and truly realizing the cleaning function of the water flosser.

[0023] In summary, this invention achieves an organic combination of UVC sterilization, leak-proof protection, and high-level waterproofing through structural innovation. It effectively solves the core problems of existing water flossers, such as the easy growth of microorganisms and cross-contamination, while also overcoming the technical challenges of ensuring the safety of the UVC sterilization light source and achieving waterproof sealing. The equipped multi-functional storage base enables automated linkage between external wiping of the nozzle and internal hot air drying of the pipes. Furthermore, the branch pipe design prevents damage to the water pump from high temperatures, balancing ease of production and assembly, user-friendly operation, and stable equipment operation. This invention constructs a sterilization and cleaning protection system from multiple dimensions, including water storage, pipes, and nozzles, significantly improving the product quality, safety, and practical value of electric water flossers, making it suitable for widespread application. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of an electric oral irrigator with sterilization and protection functions proposed in this invention;

[0025] Figure 2 for Figure 1 Exploded view;

[0026] Figure 3 Exploded view of the water pump support assembly;

[0027] Figure 4 This is an exploded view of the water tank assembly.

[0028] Figure 5 for Figure 1 A sectional view;

[0029] Figure 6 A schematic diagram of an electric dental flosser placed inside a base;

[0030] Figure 7 This is a structural diagram of the base;

[0031] Figure 8 for Figure 7 A sectional view;

[0032] Figure 9 This is a schematic diagram of the wiping assembly.

[0033] In the diagram: 1. Nozzle, 2. Main unit, 201. Nozzle filter, 202. Nozzle, 203. Hose, 204. Digital display screen, 205. Adjustment button, 206. Mode button, 207. Switch button, 208. Switch decorative ring, 209. First self-tapping screw, 210. Indicator light cover, 211. Top cover, 212. Nozzle spring, 213. Screw hole plug, 214. Second self-tapping screw, 215. Nozzle button, 3. Water tank assembly, 301. Nameplate sticker, 3. 02 Water tank bottom cover, 303 Water inlet cover, 304 First O-ring, 305 Water tank shell, 306 Cylindrical magnet, 307 Water tank magnet cover, 308 Duckbill valve, 309 Bend, 4 Base, 401 Control switch, 402 Spiral connector, 403 Placement slot, 404 Air inlet, 405 Exhaust port, 406 Mounting cavity, 407 Heat pump, 408 Servo motor, 409 Bevel gear, 410 Connecting pipe, 411 Rotating rod, 41 2 First gear, 413 Second gear, 414 Reciprocating screw, 415 Transmission assembly, 5 Water pump bracket assembly, 501 Charging wire, 502 Charging board, 503 Charging plug, 504 Second O-ring, 505 Water pump mounting bracket, 506 Third O-ring, 507 Fourth O-ring, 508 Lens, 509 Fifth O-ring, 510 Disinfection lamp plate, 511 Second self-tapping screw, 512 Third self-tapping screw, 513 Tie rod, 5 14 Main control board, 515 Water pump body, 516 Polymer battery, 517 Rubber hose, 518 Pipe joint, 519 Sixth O-ring, 6 Wiping assembly, 601 Lifting block, 602 U-shaped frame, 603 Mounting bracket, 604 Cylinder, 605 Slide rail, 606 Slider, 607 Crossbar, 608 Wiping ring, 609 Rectangular box, 610 Electromagnet, 611 Return spring, 612 Moving block, 613 Third gear, 614 Rack. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0035] Reference Figures 1-9 An electric oral irrigator with sterilization and protection functions includes a nozzle 1, a main unit 2, and a water tank assembly 3. The nozzle 1 is installed below the main unit 2, and the water tank assembly 3 is installed above the nozzle 1.

[0036] The main unit 2 includes a housing, a display lamp cover 210, and a top cover 211. The top cover 211 and the housing are integrally molded. The lower end face of the top cover 211 has a threaded connection hole adapted to the nozzle 1. The inner wall of the threaded connection hole has sealing threads. The nozzle 1 is screwed onto the top cover 211. The display lamp cover 210 is connected to the housing by multiple first self-tapping screws 209. The display lamp cover 210 is made of high-transparency acrylic material. The contact surface between the display lamp cover 210 and the housing has a sealing groove. A sealing gasket is embedded in the sealing groove. The housing has a... The water pump bracket assembly 5 contains a water pump body 515, and the water tank assembly 3 contains a hose 203. The hose 203 is made of food-grade silicone. Both ends of the hose 203 are sealed to the suction head 202 and the water pump body 515 respectively by clamps. The suction head 202 is connected to the hose 203. The water inlet end of the suction head 202 is equipped with a suction head filter screen 201. The suction head filter screen 201 is a microporous filter screen made of 304 stainless steel. The suction head filter screen 201 and the suction head 202 are snap-fitted together for easy disassembly and cleaning.

[0037] The water tank assembly 3 includes a water tank shell 305, with a water tank bottom cover 302 connected to the upper end of the water tank shell 305. A nameplate sticker 301 is provided on the water tank bottom cover 302. A water inlet is provided on the side of the water tank shell 305, and a water inlet cover 303 is provided on the water inlet. The water inlet cover 303 is hinged to the water tank shell 305. A sealing boss matching the water inlet is provided on the inner side of the water inlet cover 303. A first O-ring 304 is provided on the water inlet cover 303. A cylindrical magnet 306, which is neodymium iron boron, is embedded in the lower end of the water tank shell 305. A strong magnet is symmetrically embedded in the magnet mounting groove at the lower end of the water tank housing 305. A water tank magnet cover 307 is installed at the lower end of the water tank housing 305. A bent pipe 309 is connected to the water tank housing 305. A valve is provided on the bent pipe 309. After each use, the valve on the bent pipe 309 can be opened to drain the remaining water in the water tank assembly 3. A duckbill valve 308 is provided on the water tank housing 305. The duckbill valve 308 is made of silicone and is embedded in the mounting hole on the side wall of the water tank housing 305. The opening of the duckbill valve 308 faces the outside of the water tank housing 305.

[0038] The outer casing is equipped with an adjustment button 205, a mode button 206, and a switch button 207. All three buttons are waterproof silicone buttons, embedded in the button mounting holes of the outer casing. A waterproof ring is provided between the button and the mounting hole. A switch decorative ring 208 is provided on the outer side of the outer casing. A digital display screen 204 is embedded in the outer casing. The water pump bracket assembly 5 is installed inside the outer casing by a second self-tapping screw 214. A screw hole plug 213 is fitted on the second self-tapping screw 214. A nozzle button 215 is provided inside the outer casing. The nozzle button 215 corresponds to the position of the switch button 207. The nozzle button 215 and the switch button 207 are elastically connected by a nozzle spring 212.

[0039] The water pump bracket assembly 5 includes a charging cable 501, a charging plate 502, a charging plug 503, a water pump mounting bracket 505, a second O-ring 504, a third O-ring 506, a fourth O-ring 507, a lens 508, a fifth O-ring 509, a disinfection lamp plate 510, a pull rod 513, a main control board 514, a polymer battery 516, a rubber tube 517, a pipe connector 518, and a sixth O-ring 519. The disinfection lamp plate 510 is a rigid PCB board with UVC germicidal lamp beads soldered on it to provide a germicidal light source for the water tank assembly 3. The disinfection lamp plate 510 is mounted on the water pump mounting bracket 505 by a second self-tapping screw 511. The second O-ring 504, the third O-ring 506, the fourth O-ring 507, the lens 508, and the fifth O-ring 509 are located between the water pump mounting bracket 505 and the disinfection lamp plate 510. The pull rod 513 is mounted on the water pump mounting bracket 505 by a third self-tapping screw. 512 is installed on the water pump mounting bracket 505, the main control board 514 is installed on the pull rod 513, the water pump body 515 is installed on the main control board 514, the water pump body 515 is connected to the hose 203 through the rubber tube 517, the outlet end of the water pump body 515 is connected to the pipe joint 518, a sixth O-ring 519 is provided between the pipe joint 518 and the water pump body 515, a branch pipe is connected between the pipe joint 518 and the rubber tube 517, and an electromagnetic switching valve is provided at the connection between the branch pipe and the pipe joint 518 and the rubber tube 517. When the water flosser is working normally, the water flow direction is rubber tube 517 → water pump body 515 → pipe joint 518. After the water flosser is placed in the base 4, the electromagnetic switching valve is energized, so that the subsequent hot air flow direction is rubber tube 517 → branch pipe → pipe joint 518, so that the hot air flow bypasses the water pump body 515.

[0040] The device also includes a base 4 for storing the water flosser. The upper end of the base 4 has a placement slot 403, and the outer side of the base 4 has a control switch 401. The base 4 has a mounting cavity 406, within which a hot air pump 407 is installed. The outlet of the hot air pump 407 is connected to a connecting pipe 410. The side wall of the mounting cavity 406 has multiple air inlets 404, which are strip-shaped through holes evenly distributed on the side wall of the mounting cavity 406. The inner side of each air inlet 404 has a dust filter to prevent dust from entering the mounting cavity 406. The base 4 has a transmission cavity, into which the connecting pipe 410 extends. The upper end of the connecting pipe 410 is spirally connected to a spiral connector 402, the upper end of which extends to the outside. The outer wall of the bent pipe 309 has a threaded layer. A servo motor 408 is installed within the mounting cavity 406. A miniature stepper motor with forward and reverse rotation adjustment function provides power to the transmission components of the base 4. A rotating rod 411 is vertically rotatably connected in the transmission cavity. A bevel gear 409 is fixedly connected to the output shaft of the servo motor 408 and they mesh with each other. A first gear 412 is connected to the rotating rod 411 through a first one-way bearing. The first one-way bearing can only drive the first gear 412 to rotate in a clockwise direction to realize one-way power transmission. A second gear 413 that meshes with the first gear 412 is fixedly connected to the spiral joint 402. The spiral joint 402 is a reciprocating automatic release spiral joint. Thus, during the clockwise rotation of the output shaft of the servo motor 408, the spiral joint 402 can connect the bend 309 and the connecting pipe 410 together. As the servo motor 408 continues to rotate clockwise, the spiral joint 402 can also be separated from the bend 309.

[0041] The placement slot 403 is equipped with a wiping assembly, which includes a U-shaped frame 602. Mounting brackets 603 are fixedly connected to the inner walls of both the front and rear sides of the U-shaped frame 602. A slide rail 605 is fixedly connected to the mounting bracket 603, and a cylinder 604 is fixedly connected to the mounting bracket 603. A slider 606 is slidably connected to the slide rail 605. The telescopic end of the cylinder 604 is fixedly connected to the slider 606. A crossbar 607 is rotatably connected to adjacent sides of the two sliders 606. The crossbar 607 is rotatably connected to the slider 606 via a rotating shaft. A damping pad is provided between the rotating shaft and the slider 606 to ensure the positional stability of the crossbar 607 after rotation. A wiping ring 608 is fixedly connected to adjacent sides of the two crossbars 607. The wiping ring 608 is... The ring structure has a microfiber wiping cloth wrapped inside. The wiping cloth and the wiping ring 608 are connected by Velcro for easy disassembly and replacement. An angle adjustment component is provided on the slider 606 on the left side. The angle adjustment component includes a rectangular box 609 fixedly connected to the slider 606. An electromagnet 610 is fixedly connected to the inner wall of the rectangular box 609. The electromagnet 610 is an energized and attracting type electromagnet and is electrically connected to the power supply module of the base 4. A moving block 612 is slidably connected inside the rectangular box 609. The moving block 612 and the electromagnet 610 are elastically connected by a return spring 611. A rack 614 is fixedly connected to the moving block 612. A crossbar 607 passes through the rectangular box 609. A third gear 613 is fixedly connected to the crossbar 607.

[0042] The system also includes a lifting assembly, which includes a reciprocating lead screw 414 rotatably connected to the top of the transmission cavity. A lifting block 601 is threaded onto the reciprocating lead screw 414. A rectangular opening is provided between the transmission cavity and the placement slot 403. The lifting block 601 passes through the rectangular opening and is fixedly connected to the U-shaped frame 602. The reciprocating lead screw 414 and the rotating rod 411 are connected by a transmission assembly 415. The transmission assembly 415 consists of two sprockets and a chain. A second one-way bearing is provided between the rotating rod 411 and the sprockets. The second one-way bearing can only drive the sprockets to rotate counterclockwise. It works in conjunction with the first one-way bearing to achieve different power outputs when the servo motor 408 rotates in both directions.

[0043] The functional principle of this invention can be explained by the following operation: After cleaning the mouth with the water flosser, place it in the placement slot 403 of the special base 4. First, press the control switch 401 on the top of the base 4. The servo motor 408 rotates clockwise and drives the spiral joint 402 to rotate through the transmission of the bevel gear 409, the first gear 412, and the second gear 413. This causes the spiral joint 402 to automatically connect with the bent pipe 309 of the water tank assembly 3 of the water flosser, thus achieving a sealed connection between the base 4 and the water flosser.

[0044] After connection is complete, press the control switch 401 below the base 4. The cylinder 604 starts and pushes the wiping assembly upward. The wiping ring 608 first wipes the bend of the nozzle 1 in an inclined state. When the wiping ring 608 moves to the bend between the bend and the vertical part of the nozzle 1, the electromagnet 610 is energized to drive the rack 614 to move. The third gear 613 drives the crossbar 607 to rotate, so that the wiping ring 608 is adjusted from the inclined state to the horizontal state to meet the wiping needs of the vertical part of the nozzle 1.

[0045] Subsequently, the servo motor 408 rotates in the opposite direction, and drives the rotating rod 411 to rotate through the bevel gear 409. The rotating rod 411 drives the reciprocating screw 414 to rotate through the transmission component 415, so that the lifting block 601 drives the wiping component to move back and forth along the vertical part of the nozzle 1, and completes the all-round wiping of the vertical part of the nozzle 1.

[0046] During the entire wiping process of nozzle 1, hot air pump 407 is started simultaneously to generate hot airflow. The hot airflow is injected into water tank assembly 3 through connecting pipe 410, spiral joint 402, and elbow 309. After flowing through suction head 202, hose 203, and rubber tube 517, it bypasses water pump body 515 through branch pipe between rubber tube 517 and pipe joint 518, and finally sprays out from nozzle 1, realizing full-area hot air drying of the entire water flow pipe inside the water flosser.

[0047] After the external wiping and internal pipe drying of nozzle 1 are completed, the hot air pump 407 automatically shuts off, the electromagnet 610 is de-energized, the reset spring 611 drives the moving block 612 and rack 614 to reset, the wiping ring 608 returns to its initial tilted state, and finally the cylinder 604 stretches to move the wiping assembly down to its original position, completing the full cleaning and drying operation after using the water flosser.

[0048] Furthermore, during the daily water supply phase of the water flosser, after the water tank assembly 3 is assembled into the main unit 2, the Hall element inside the main unit 2 senses the cylindrical magnet 306 built into the water tank assembly 3, triggering the disinfection lamp plate 510 to automatically turn on, sterilizing the water stored in the water tank assembly 3. At the same time, the water tank shell 305, through the lens 508, adjusts the sensing and opening logic in conjunction with the Hall element, forming a double protection to prevent the light source of the disinfection lamp plate 510 from leaking out, ensuring safe use. Moreover, the main unit 2 achieves a high-level waterproof rating of IPX7 through the structural design of the second O-ring 504, the third O-ring 506, the fourth O-ring 507, the fifth O-ring 509, the sixth O-ring 519, the silicone screw hole plug 213, and glue sealing, effectively preventing water damage to the equipment. The duckbill valve 308 on the water tank assembly 3 can balance the internal air pressure and prevent water from overflowing when the equipment is tilted. The water inlet cover 303 on the side of the water tank shell 305 can achieve water filling without disassembling the tank, improving the convenience of use.

[0049] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An electric oral irrigator with sterilization and protective functions, characterized in that, include: The nozzle (1), the main unit (2), and the water tank assembly (3) are provided, wherein the nozzle (1) is installed below the main unit (2) and the water tank assembly (3) is installed above the nozzle (1); The main unit (2) includes a housing, a display lamp cover (210) and a top cover (211). The nozzle (1) is spirally connected to the top cover (211). The display lamp cover (210) is connected to the housing by a plurality of first self-tapping screws (209). A water pump bracket assembly (5) is provided inside the housing. A water pump body (515) is provided inside the water pump bracket assembly (5). A hose (203) is provided inside the water tank assembly (3). A suction head (202) is connected to the hose (203). A suction head filter (201) is provided at the water inlet end of the suction head (202). The water tank assembly (3) includes a water tank shell (305), the upper end of which is connected to a water tank bottom cover (302), the bottom cover (302) is provided with a nameplate sticker (301), the side of the water tank shell (305) is provided with a water inlet, the water inlet is provided with a water inlet cover (303), the water inlet cover (303) is provided with a first O-ring (304), the lower end of the water tank shell (305) is embedded with a cylindrical magnet (306), the lower end of the water tank shell (305) is installed with a water tank magnet cover (307), the water tank shell (305) is connected to a bend pipe (309), and the water tank shell (305) is provided with a duckbill valve (308).

2. The electric oral irrigator with sterilization and protection function according to claim 1, characterized in that: The housing is provided with an adjustment button (205), a mode button (206) and a switch button (207). The outer side of the housing is provided with a switch decorative ring (208). The housing is embedded with a digital display screen (204). The water pump bracket assembly (5) is installed inside the housing by a second self-tapping screw (214). A screw hole plug (213) is fitted on the second self-tapping screw (214). The housing is provided with a nozzle button (215). The nozzle button (215) corresponds to the position of the switch button (207). The nozzle button (215) and the switch button (207) are elastically connected by a nozzle spring (212).

3. The electric oral irrigator with sterilization and protection function according to claim 2, characterized in that: The water pump bracket assembly (5) includes a charging cable (501), a charging plate (502), a charging plug (503), a water pump mounting bracket (505), a second O-ring (504), a third O-ring (506), a fourth O-ring (507), a lens (508), a fifth O-ring (509), a disinfection lamp plate (510), a pull rod (513), a main control board (514), a polymer battery (516), a rubber hose (517), a pipe joint (518), and a sixth O-ring (519). The disinfection lamp plate (510) is mounted on the water pump mounting bracket (505) by a second self-tapping screw (511). The second O-ring (504), the third O-ring (506), and the sixth O-ring (507) are... The fourth O-ring (507), lens (508) and fifth O-ring (509) are located between the water pump mounting bracket (505) and the disinfection lamp plate (510). The pull rod (513) is installed on the water pump mounting bracket (505) by the third self-tapping screw (512). The main control board (514) is installed on the pull rod (513). The water pump body (515) is installed on the main control board (514). The water pump body (515) is connected to the hose (203) through the rubber tube (517). The outlet end of the water pump body (515) is connected to the pipe joint (518). A sixth O-ring (519) is provided between the pipe joint (518) and the water pump body (515).

4. The electric oral irrigator with sterilization and protection function according to claim 1, characterized in that: It also includes a base (4) for storing the water flosser. The upper end of the base (4) is provided with a placement slot (403). The outer side of the base (4) is provided with a control switch (401). The base (4) is provided with an installation cavity (406). A hot air pump (407) is installed in the installation cavity (406). The air outlet of the hot air pump (407) is connected to a connecting pipe (410). The side wall of the installation cavity (406) is provided with multiple air inlets (404). The base (4) is provided with a transmission cavity. The connecting pipe (410) extends into the transmission cavity. The upper end of the connecting pipe (410) is spirally connected to a spiral connector (402). The upper end of the spiral connector (402) extends to the outside. The outer wall of the bend (309) is provided with a threaded layer.

5. An electric dental flosser with sterilization and protection function according to claim 4, characterized in that: A servo motor (408) is installed in the mounting cavity (406). A rotating rod (411) is vertically rotatably connected in the transmission cavity. A bevel gear (409) that meshes with each other is fixedly connected to the output shaft of the servo motor (408) on the rotating rod (411). A first gear (412) is connected to the rotating rod (411) through a first one-way bearing. A second gear (413) that meshes with the first gear (412) is fixedly connected to the spiral joint (402).

6. The electric oral irrigator with sterilization and protection function according to claim 4, characterized in that: The placement slot (403) is provided with a wiping assembly, which includes a U-shaped frame (602). Mounting brackets (603) are fixedly connected to the inner walls of the front and rear sides of the U-shaped frame (602). A slide rail (605) is fixedly connected to the mounting bracket (603). A cylinder (604) is fixedly connected to the mounting bracket (603). A slider (606) is slidably connected to the slide rail (605). The telescopic end of the cylinder (604) is fixedly connected to the slider (606). A crossbar (607) is rotatably connected to the adjacent sides of the two sliders (606). A wiping ring (608) is fixedly connected to the adjacent sides of the two crossbars (607).

7. An electric dental flosser with sterilization and protection function according to claim 6, characterized in that: An angle adjustment assembly is provided on the slider (606) located on the left side. The angle adjustment assembly includes a rectangular box (609) fixedly connected to the slider (606). An electromagnet (610) is fixedly connected to the inner wall of the rectangular box (609). A moving block (612) is slidably connected inside the rectangular box (609). The moving block (612) and the electromagnet (610) are elastically connected by a return spring (611). A rack (614) is fixedly connected to the moving block (612). A crossbar (607) passes through the rectangular box (609). A third gear (613) is fixedly connected to the crossbar (607).

8. An electric dental flosser with sterilization and protection function according to claim 6, characterized in that: It also includes a lifting assembly, which includes a reciprocating screw (414) rotatably connected to the top of the transmission cavity. A lifting block (601) is threaded onto the reciprocating screw (414). A rectangular opening is provided between the transmission cavity and the placement groove (403). The lifting block (601) passes through the rectangular opening and is fixedly connected to the U-shaped frame (602). The reciprocating screw (414) and the rotating rod (411) are connected by a transmission assembly (415). The transmission assembly (415) consists of two sprockets and a chain. A second one-way bearing is provided between the rotating rod (411) and the sprockets.

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