Table type oral irrigator

By adopting a pull-out water tank and a multi-seal structure in the countertop water flosser, the problems of difficult water tank disassembly, incomplete cleaning, and insufficient stability have been solved, achieving convenient replacement and safe use.

CN224220268UActive Publication Date: 2026-05-12浙江健拓医疗仪器科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
浙江健拓医疗仪器科技有限公司
Filing Date
2025-04-18
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing countertop water flossers suffer from problems such as difficulty in disassembly, incomplete cleaning, insufficient stability of the magnetic design, and a conflict between capacity and practicality, affecting user experience and hygiene safety.

Method used

It adopts a pull-out water tank structure, with the water tank located on the side. Through the side push-pull design, combined with multiple sealing structures and limiting structures, the water tank can be easily replaced and sealed. Food-grade transparent materials are used to improve the visibility and safety of cleaning.

Benefits of technology

It enables convenient replacement and cleaning of the water tank, increases capacity, avoids contamination of the water pump and PCB board, improves ease of use and safety, and enhances user experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a table type oral irrigator, which relates to the technical field of oral irrigators and comprises a shell, a water tank support plate is arranged in the shell, a pull type water tank is slidably arranged in the water tank support plate and consists of a water tank and a water tank cover, a clamping plate is arranged at the top of the rear side of the water tank, and the water tank cover is arranged on the clamping plate. A clamping plate is arranged on the rear side of the shell, a first corner connector is arranged in the clamping plate, a shell rear cover is arranged on the rear side of the shell, the shell rear cover is provided with a matching plate corresponding to the clamping plate, a second corner connector is arranged in the matching plate, and the first corner connector and the second corner connector each comprise a horizontal end and a vertical end. The horizontal end of the first corner connector is inserted into the horizontal end of the second corner connector.
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Description

Technical Field

[0001] This utility model relates to the field of oral irrigator technology, specifically to a desktop oral irrigator. Background Technology

[0002] 1. Currently, all countertop water flossers on the market use an upper / lower structure, with the water tank on top and the base below, where the water flosser's components are installed.

[0003] 2. Currently available countertop water flossers have the following main drawbacks in their water tank design:

[0004] a. Difficult to disassemble and inconvenient to use

[0005] Some water tanks use a snap-fit ​​design, especially those with rubber leak-proof rings, which require force to pull open, making them inconvenient to operate. If there is residual water in the tank, opening it can easily cause water to splash out, wetting clothes or countertops.

[0006] b. Incomplete cleaning and the risk of bacterial growth

[0007] The complex internal structure of the water tank (e.g., lack of a hydrophobic membrane or dead drainage areas) may lead to water accumulation, which can easily breed bacteria if not cleaned regularly, increasing the risk of oral infections.

[0008] c. Insufficient stability of magnetic design

[0009] While some magnetically assembled water tanks simplify disassembly, insufficient magnetic force can lead to loosening, leaks, and other problems, affecting the user experience.

[0010] d. The contradiction between capacity and practicality

[0011] Some water tanks have reduced capacity in pursuit of a compact size, requiring frequent refills, which is not user-friendly, especially for large families or those who need deep cleaning. Utility Model Content

[0012] Purpose of the utility model: The technical problem to be solved by this utility model is to provide a tabletop oral irrigator that solves the above-mentioned problems with the water tank of existing oral irrigators.

[0013] Technical solution

[0014] To solve the above problems, the technical solution provided by this utility model is as follows:

[0015] A countertop water flosser includes a housing, within which a water tank support plate is provided. A pull-out water tank is slidably disposed within the water tank support plate. The pull-out water tank consists of a water tank and a water tank cover. A retaining plate is provided at the top rear side of the water tank. A first corner connector is provided within the retaining plate. A rear cover is located on the rear side of the housing. A mating plate is provided corresponding to the retaining plate on the rear cover. A second corner connector is provided within the mating plate. Both the first and second corner connectors include a horizontal end and a vertical end. The horizontal end of the first corner connector is inserted into the horizontal end of the second corner connector.

[0016] Furthermore, the housing is also provided with a water flosser handle, and the water flosser handle is also provided with a water flosser. A three-way valve is fixedly provided inside the water flosser handle. The first valve port of the three-way valve faces the water flosser head, the second valve port of the three-way valve is located in the opposite direction of the first valve port, and a rotating screw is rotatably provided inside the third valve port of the three-way valve. The rotating screw has a gradually expanding thread on its surface.

[0017] Furthermore, a blocking block is provided inside the second valve port of the three-way valve, and an abutting cylinder is fixedly provided outside the second valve port of the three-way valve. A spring is provided inside the abutting cylinder, and the spring pushes the blocking block to be inserted into the opening at the communication position between the second valve port and the third valve port of the three-way valve.

[0018] Furthermore, the plug is composed of a stepped two-layer structure. The smaller diameter layer is inserted into the communication opening between the second valve port and the third valve port. The end face of the smaller diameter plug abuts against the threaded line, and the larger diameter second layer is located inside the second valve port.

[0019] Furthermore, the outer end of the rotating screw is provided with a rotating gear, and the handle of the water flosser is provided with a limiting slide rail outside the rotating gear. A switch button is slidably provided inside the limiting slide rail, and a rack that meshes with the rotating gear is provided on one side inside the switch button. The thread has a gradually expanding structure.

[0020] Furthermore, a sleeve is fixedly provided on the first valve port of the three-way valve, and a connecting sealing ring is provided at the end of the sleeve. An annular limiting groove is provided at the end of the flushing head. A through-hole engaging limiting groove corresponding to the annular limiting groove is provided on the sleeve. A push ring is provided on the second valve port of the three-way valve and the sleeve. An insertion block that is slidably inserted into the engaging limiting groove and the annular limiting groove is provided on one side of the push ring. A button that extends out of the handle of the flushing device is provided on the other side of the push ring. A retaining spring is provided between the inner side of the button and the first valve port of the three-way valve.

[0021] Furthermore, the water tank cover and the water tank are in a sliding fit, the top of the water tank is provided with a slide rail, the inside of the water tank cover is provided with a mating rail that mates with the slide rail of the water tank, and the left, right and rear sides of the water tank cover the top of the water tank.

[0022] Furthermore, a water-absorbing nail is fixedly installed at the bottom of the water tank, and a water-absorbing pipe is fixedly installed at the tail of the water-absorbing nail. The water-absorbing pipe extends upward from the water-absorbing nail located at the bottom and connects to the first corner connector.

[0023] Furthermore, the housing also includes a spring tube connected to the handle of the water flosser. The housing also includes a water pump support plate with a water pump mounted on it. The water pump is encased in a shock-absorbing pad. The housing and the shock-absorbing pad have ventilation holes. The water pump has an inlet and an outlet. The inlet of the water pump is connected to the vertical end of the second corner connector, and the outlet of the water pump is connected to the spring tube.

[0024] Furthermore, the bottom of the pull-out water tank is provided with a semi-circular protrusion, and the bottom plate of the water tank support plate is provided with a limiting protrusion that cooperates with the protrusion. The bottom of the shell is provided with multiple suction cups. Beneficial effects

[0025] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0026] The water tank of this oral irrigator is located on the side and has a push-pull structure. The side structure makes the whole machine compact, easy to change water, and convenient for later maintenance and repair. The side push-pull design allows the water tank to be pulled out quickly. At the same time, the side location of the water tank increases the volume, and the liquid in the water tank will not flow into the water pump and PCB board. In addition, there are multiple connecting sealing structures and limiting structures on the outside of the water tank, which makes it safer. The oral irrigator is also extremely convenient, efficient and quick to use. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the surface structure of Embodiment 1 of the present invention;

[0028] Figure 2 This is an exploded view of Embodiment 1 of this utility model;

[0029] Figure 3 This is a cross-sectional view of the pull-out water tank of Embodiment 1 of this utility model;

[0030] Figure 4 For this Figure 3 Enlarged view of point A in the middle;

[0031] Figure 5 This is a schematic diagram of the interior of the shell without a box in Embodiment 1 of this utility model;

[0032] Figure 6 This is an enlarged schematic diagram of the first and second corner connectors in Embodiment 1 of this utility model;

[0033] Figure 7 This is a schematic diagram of the water tank support plate of the shell in Embodiment 1 of this utility model;

[0034] Figure 8 This is a bottom view of the water tank in Embodiment 1 of this utility model;

[0035] Figure 9 This is a schematic diagram of the water pump in Embodiment 1 of this utility model;

[0036] Figure 10 This is a cross-sectional view of the handle of the water flosser according to Embodiment 1 of this utility model. Detailed Implementation

[0037] To make the technical solution of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. Example

[0038] Combined with appendix Figure 1-10 A countertop water flosser includes a housing 1, which has a hollow structure and an opening for connecting and operating components. A pull-out water tank 2 is located on one side of the housing 1, and a water flosser handle 3 is located on the front surface of the other side of the housing 1. A locking block 31 for mounting the water flosser handle 3 is fixed on the housing 1, and a spring cable 32 is located on the lower side of the locking block 31. The spring cable 32 is connected to the water flosser handle 3. A storage space 11 is located on one side of the housing 1, and a removable storage cover 12 is installed on the storage space 11.

[0039] The pull-out water tank 2 consists of a water tank 21 and a water tank cover 22 located on top of the water tank 21. The water tank cover 22 is slidably installed on the water tank 21, and the water tank cover 22 and the water tank 21 are in a sliding fit. The top of the water tank 21 is provided with a slide rail, and the inside of the water tank cover 22 is provided with a matching rail that matches the slide rail of the water tank 21. The left, right and rear sides of the water tank 22 cover the top of the water tank 21. The top of the water tank 21 is opened and closed by pushing and pulling the water tank cover 22. When the pull-out water tank 22 is pulled out of the housing 1, the water tank cover 22 is pushed backward to open the water tank 21. At this time, the user can fill the water tank 21 with water. After the water level reaches the required level, the water tank cover 22 is pulled forward to put the water tank cover 22 back on the top of the water tank 21.

[0040] The front panel of the water tank 21 is slightly longer than the water storage size of the water tank 21. The shell 1 has an opening corresponding to the front panel of the water tank 21. The front panel of the water tank 21 can be locked in the opening of the shell 1 corresponding to the position of the water tank 21. The slightly longer front panel of the water tank can prevent the user from pushing the water tank 21 inward too much.

[0041] A water-absorbing nail 211 is fixedly installed at the bottom of the water tank 21. A water-absorbing pipe 212 is fixedly installed at the tail of the water-absorbing nail 211. The water-absorbing pipe 212 extends upward from the water-absorbing nail 211 located at the bottom. Both the water-absorbing nail 211 and the water-absorbing pipe 212 are located inside the rear side of the water tank 21. A retaining plate 213 is held on the rear side plate of the water tank 21. A first corner connector 214 is provided in the retaining plate 213. One end of the first corner connector 214 is vertical and connected to the upwardly extending water-absorbing pipe 212. The other end is horizontal and faces the rear side of the pull-out water tank 211. The water-absorbing nail 211 is a filter component with a through hole at the center of the cross plate. It plays the role of counterweight and filtering particulate matter, preventing large particles from being sucked in and thus clogging the water pump or burning out the water pump.

[0042] The first angle connector 214 is a flexible silicone hose. The suction pin 211 acts as a counterweight and filters particles, preventing large particles from being sucked in and clogging or burning out the water pump 260. The suction pin 211 is inserted into the suction pipe 212 via a tight fit. The other end of the suction pipe 212 can be inserted into the first angle connector 214, which is also fixed by a tight fit. Since both are tight fits, they also provide a sealing and leak-proof performance.

[0043] The rear side of the housing 1 is the housing rear cover 13. A mating plate 215 is fixedly provided on the housing rear cover 13 located behind the first corner connector 214 of the pull-out water tank 2. The mating plate 215 can be fixed to the housing rear cover 13 by screws. A second corner connector 216 is also provided inside the mating plate 215. One end of the second corner connector 216 faces the horizontal direction of the first corner connector 214, and the other end is in the vertical direction, preferably facing the bottom of the mating plate. Both the first corner connector 214 and the second corner connector 216 are pipe connectors.

[0044] When the pull-out water tank 2 is inside the shell 1, the horizontal end of the first corner connector 214 is connected to the horizontal end of the second corner connector 216. At this time, the liquid in the water tank 21 flows through the suction pipe 212 via the suction nail 211 and from the first corner connector 214 into the second corner connector 216. When the pull-out water tank 2 slides out, the horizontal end of the first corner connector 214 is disconnected from the horizontal end of the second corner connector 216.

[0045] The horizontal end of the first corner connector 214 is inserted into the horizontal end of the second corner connector 216. The horizontal end of the first corner connector 214 is provided with a slot, and the slot of the horizontal end of the first corner connector 214 is provided with a first sealing ring 217. When the horizontal end of the first corner connector 214 is inserted into the horizontal end of the second corner connector 216, the first sealing ring 217 can be compressed to achieve a sealing and leak-proof effect.

[0046] The housing 1 is provided with a water tank support plate 23 for supporting and accommodating the pull-out water tank 2. The water tank support plate 23 is composed of side plates, a top plate and a bottom plate on both sides and a rear side plate on the rear side. The rear side plate of the water tank support plate 23 is provided with a rear side groove that protrudes rearward and is recessed inward, corresponding to the retaining plate 213. The rear groove is provided with an opening for the first corner connector 214 to pass through. The opening of the rear side groove extends rearward, which also allows the second corner connector 216 to be inserted into the rear side groove.

[0047] A second sealing ring 218 is fixedly provided on the horizontal end face of the second corner connector 216, and a third sealing ring 219 is also provided on the mating plate 215. When the second corner connector 216 is inserted into the rear groove, the second sealing ring 218 abuts against the open end face inside the rear groove, thereby bringing a second sealing effect. The third sealing ring 219 on the mating plate 215 abuts against the rear end face of the rear groove, thereby bringing a third sealing effect. The three protections ensure the airtightness and reliability between the first corner connector 214 and the second corner connector 216, ensuring that no defects such as air leakage will occur during the long-term pushing and pulling of the water tank. Even if one sealing ring is damaged, it will not affect the performance.

[0048] Two sliding rail type ribs 221 are provided at the bottom of the water tank support plate 23 of the shell 1. The sliding rail type ribs 221 reduce the frictional resistance of the pull-out water tank 2 when sliding, so that the water tank can be easily pushed in when it is full of water.

[0049] The bottom of the pull-out water tank 2 is provided with a semi-circular protrusion 231. The bottom plate of the water tank support plate 23 is provided with a limiting protrusion 232 that cooperates with the protrusion 231. When the water tank 21 is pushed in, the bottom protrusion 231 of the water tank contacts the limiting protrusion 232 and makes a sound. At the same time, the limiting protrusion 232 also blocks the water tank 21 through the protrusion 231, reminding the user that the water tank 21 has been placed. At this time, the top of the water tank hits the top wall of the main shell and is locked in place, completing the limiting. The two sides of the water tank support plate 23 can also be provided with arc-shaped limiting strips 234. When the pull-out water tank 2 is pushed into the water tank support plate 23, it gradually presses against the side wall of the pull-out water tank 2 to prevent the pull-out water tank 2 from moving during use.

[0050] Because of the independent access module of the pull-out water tank, later maintenance, cleaning, and replacement of parts are very convenient.

[0051] Featuring a drawer-type water tank structure, the unit boasts a compact size, convenient water changes, and easy maintenance and repair. Furthermore, the water tank is made of food-grade transparent material, ensuring environmental friendliness and hygiene while allowing users to clearly see the internal condition of the tank to determine if maintenance, cleaning, or replacement is needed.

[0052] The housing 1 also includes a water pump support plate 261, on which a water pump 260 is mounted. The water pump 260 can be covered with a shock-absorbing pad. Heat dissipation holes are provided on the housing 1 and the shock-absorbing pad to ensure rapid heat dissipation of the water pump 260 under rated operating conditions. Simultaneously, the shock-absorbing pad filters out most vibrations, achieving stable overall machine operation and improving user experience. The water pump 260 has an inlet and an outlet. The inlet connects to a pull-out water tank 2; that is, the inlet of the water pump 260 connects to the vertical end of the pipe of the second corner connector. The outlet of the water pump 260 connects to a spring line 32. The water pump 260 also has a battery mounting bracket 262, which houses a storage battery that powers the water pump 260.

[0053] The water pump 260 has a PCB board 263 on its upper side, which is connected to a potentiometer knob, a mode button, a power switch 37, and a speed indicator light. The rotary potentiometer provides stepless speed adjustment, the mode button provides two modes: continuous impact and intermittent impact, and the power switch 37 provides an on / off function. Users of different ages can easily adjust to a comfortable mode and speed, enhancing the overall user experience.

[0054] The back cover 13 of the housing has a vertically passing power cord. The bottom of the back cover of the housing has a USB fixing block. The power cord is fixed to the USB charging head by soldering and connects to the PCBA to provide power. The USB charging head is located inside the USB fixing block. The USB charging head passes through the USB fixing block and is fixed to the back cover by screws. The USB fixing block also has a silicone plug. The silicone plug is tightly inserted into the hole of the back cover. The silicone plug is made of soft rubber and achieves airtightness and waterproofing through tight fit with the back cover of the housing.

[0055] The spring line 32 is a hollow line with a structure similar to a threaded spring, which ensures that the water output is not affected while being able to be stretched to a certain length at will. After being released, it can automatically return to the state before being stretched, which is convenient for users.

[0056] The water flosser handle 3 has a fixed magnet 320 inside, and the locking block 31 is a magnet that is attracted to the magnetic force inside the water flosser handle 3. The fixed magnet 320 and the locking block 31 inside the water flosser handle 3 attract each other, so that the water flosser handle 3 can be quickly picked up and put down without the need for other cumbersome fixing methods, which is convenient for users.

[0057] The water flosser handle 3 is equipped with a replaceable water flosser head 4. The storage space 11 can hold multiple spare water flosser heads 4 to facilitate timely replacement of the water flosser heads 4 on the water flosser handle 3.

[0058] A three-way valve 33 is fixedly installed inside the handle 3 of the oral irrigator. The first valve port of the three-way valve 33 faces the oral irrigator head 4. The second valve port of the three-way valve 33 is connected to a spring line and is located in the opposite direction to the first valve port. A rotating screw 34 is rotatably installed inside the third valve port of the three-way valve 33. The rotating screw has a gradually expanding thread on its surface. A plug block 35 is installed inside the second valve port of the three-way valve. An abutting cylinder 36 is fixedly installed outside the second valve port of the three-way valve 33. A spring is installed inside the abutting cylinder 36. The spring pushes the plug block 35 to be inserted into the opening at the connection position between the second and third valve ports of the three-way valve. The plug block 35 is composed of a stepped two-layer structure. The layer with a smaller diameter is inserted into the connection opening between the second and third valve ports, and the end face with a smaller diameter abuts against the thread. The second layer with a larger diameter is located inside the second valve port and is used to cover the end face of the connection opening between the second and third valve ports to form a blockage.

[0059] A rotating gear is provided at the outer end of the rotating screw 34. A limit slide rail is provided on the outside of the rotating gear on the handle 3 of the water flosser. A switch button 37 is slidably provided inside the limit slide rail. A rack is provided on one side of the switch button 37 to mesh with the rotating gear. By sliding the switch button 37, the rack drives the rotating gear to rotate. The rotation of the rotating gear further drives the rotating screw to rotate. The rotating screw synchronously drives the thread on its surface to rotate. Since the thread has a gradually expanding structure, the thread will push the block 35 back, thereby connecting the first and second valve ports of the three-way valve.

[0060] A sleeve 340 is fixedly installed on the first valve port of the three-way valve 33. A connecting sealing ring 341 is provided at the end of the sleeve 340. The connecting sealing ring 341 can prevent the replacement of the flushing head 4 from affecting the sealing performance. The end of the flushing head 4 is provided with an annular limiting groove 342. The sleeve 340 is provided with a through-hole engaging limiting groove 343 corresponding to the annular limiting groove 342. A push ring 345 is provided on the second valve port of the three-way valve and the sleeve 340. An insertion block 344 is slidably provided on one side of the push ring 345, which is inserted into the engaging limiting groove 343 and the annular limiting groove 342. The other side of the push ring 345 is provided with a part that extends out of the handle 3 of the flushing device. Button 346 is provided with a retaining spring 347 between the inner side of button 346 and the first valve port of three-way valve 33. When it is necessary to replace the punch head 4, the push ring 345 is pushed inward by pressing button 346, so that the insertion block 344 is disengaged from the engagement limiting groove 343 and the annular limiting groove 342. At this time, the punch head 4 can be replaced. After the replaced punch head 4 is inserted into the sleeve 340, button 346 is released, the retaining spring 347 pushes the ring 345 back to its original position, so that the insertion block 344 is re-inserted into the engagement limiting groove 343 and the annular limiting groove 342 to fix the newly replaced punch head 4.

[0061] The bottom of the housing 1 is provided with suction cups 6. There are multiple suction cups 6, which are located at the corners of the housing 1. The suction cups 6 are used to fix the tabletop water flosser on the table to prevent it from moving during use.

[0062] When in use, after adjusting via button 346, water pump 260 is activated, and the liquid in the pull-out water tank 2 is sprayed out through the pump head.

[0063] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A benchtop water flosser, characterized in that, The device includes a housing, within which a water tank support plate is provided. A pull-out water tank is slidably disposed within the water tank support plate. The pull-out water tank consists of a water tank and a water tank cover. A retaining plate is provided at the top rear side of the water tank. A first corner connector is provided within the retaining plate. A rear cover is located on the rear side of the housing. A mating plate is provided corresponding to the retaining plate on the rear cover. A second corner connector is provided within the mating plate. Both the first and second corner connectors include a horizontal end and a vertical end. The horizontal end of the first corner connector is inserted into the horizontal end of the second corner connector.

2. A benchtop water flosser according to claim 1, characterized in that, The housing is also provided with a water flosser handle, and the water flosser handle is also provided with a water flosser. A three-way valve is fixedly provided inside the water flosser handle. The first valve port of the three-way valve faces the water flosser head, the second valve port of the three-way valve is located in the opposite direction of the first valve port, and a rotating screw is rotatably provided inside the third valve port of the three-way valve. The rotating screw has a gradually expanding thread on its surface.

3. A benchtop water flosser according to claim 2, characterized in that, The second valve port of the three-way valve is provided with a blocking block, and an abutting cylinder is fixedly provided outside the second valve port of the three-way valve. A spring is provided inside the abutting cylinder, and the spring pushes the blocking block to be inserted into the opening at the communication position between the second valve port and the third valve port of the three-way valve.

4. A benchtop water flosser according to claim 3, characterized in that, The plug is composed of a stepped two-layer structure. The smaller diameter layer is inserted into the opening connecting the second valve port and the third valve port. The end face of the smaller diameter plug abuts against the threaded line. The larger diameter second layer is located inside the second valve port.

5. A benchtop water flosser according to claim 4, characterized in that, The rotating screw has a rotating gear at its outer end, and the water flosser handle has a limiting slide rail on the outside of the rotating gear. A switch button is slidably mounted inside the limiting slide rail. A rack that meshes with the rotating gear is located on one side inside the switch button. The thread has a gradually expanding structure.

6. A benchtop water flosser according to claim 2, characterized in that, A sleeve is fixedly provided on the first valve port of the three-way valve. A connecting sealing ring is provided at the end of the sleeve. An annular limiting groove is provided at the end of the flushing head. A locking limiting groove corresponding to the annular limiting groove is provided through the sleeve. A push ring is provided on the second valve port of the three-way valve and the sleeve. An insertion block that is inserted into the locking limiting groove and the annular limiting groove is slidably provided on one side of the push ring. A button that extends out of the handle of the flushing device is provided on the other side of the push ring. A retaining spring is provided between the inner side of the button and the first valve port of the three-way valve.

7. A benchtop water flosser according to claim 1, characterized in that, The water tank cover and the water tank are in a sliding fit. The top of the water tank is provided with a slide rail. The inside of the water tank cover is provided with a mating rail that mates with the slide rail of the water tank. The left, right and rear sides of the water tank cover the top of the water tank.

8. A benchtop water flosser according to claim 1, characterized in that, A water-absorbing nail is fixedly installed at the bottom of the water tank, and a water-absorbing pipe is fixedly installed at the tail of the water-absorbing nail. The water-absorbing pipe extends upward from the water-absorbing nail at the bottom and connects to the first corner connector.

9. A benchtop water flosser according to claim 2, characterized in that, The housing also contains a spring tube connected to the handle of the water flosser. The housing also contains a water pump support plate with a water pump mounted on it. The water pump is wrapped with a shock-absorbing pad. The housing and the shock-absorbing pad have heat dissipation holes. The water pump has an inlet and an outlet. The inlet of the water pump is connected to the vertical end of the pipe of the second corner connector, and the outlet of the water pump is connected to the spring tube.

10. A benchtop water flosser according to claim 1, characterized in that, The bottom of the pull-out water tank has a semi-circular protrusion, and the bottom plate of the water tank support plate has a limiting protrusion that cooperates with the protrusion. The bottom of the shell has multiple suction cups.