Handheld oral irrigator with multi-gear water pressure adjusting function
This handheld oral irrigator, with its multi-level water pressure adjustment, utilizes a micro motor and gear ring linkage to automatically control the rotation of the rinsing head, solving the problem of wrist pain and achieving convenient operation and comfortable use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN WEITAI ELECTRICAL TECHNOLOGY CO LTD
- Filing Date
- 2025-05-07
- Publication Date
- 2026-04-24
AI Technical Summary
Existing water flossers require frequent wrist rotation during use, leading to wrist pain and a need for improved comfort.
This handheld water flosser features multi-level water pressure adjustment. A micro motor drives gears and a gear ring to automatically rotate the rinsing head. Combined with a directional switch and a speed switch, it controls the motor's forward and reverse rotation and power supply mode, avoiding frequent wrist rotation.
It achieves convenient operation of the water flosser, improves user comfort, avoids wrist pain, and meets different cleaning needs through different speed settings and water pressure adjustments.
Smart Images

Figure CN224155809U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of handheld oral irrigators, and in particular to a handheld oral irrigator with multiple water pressure adjustment functions. Background Technology
[0002] A water flosser, also known as a dental irrigator, is a new oral hygiene aid. It uses a pump to pressurize water, generating approximately 1200 ultra-fine, high-pressure water pulses per minute. These pulsed water jets effectively clean teeth and between teeth, significantly removing food debris and plaque from areas difficult to reach with toothbrushes and floss, thus preventing cavities. For example, it can effectively clean the gingival sulcus, about 2 millimeters deep at the junction of teeth and gums, which is difficult for a toothbrush to reach. Furthermore, water flossers can effectively remove bacteria from the tongue and buccal mucosa, and the high-pressure water flow massages the gums, promoting blood circulation and enhancing the local tissue's resistance to disease.
[0003] Existing water flossers require frequent wrist rotation during use, which can easily lead to wrist pain and reduces user comfort. Utility Model Content
[0004] The purpose of this invention is to provide a handheld water flosser with multiple water pressure adjustment functions, which can conveniently control the rotation of the water flosser without causing wrist pain, and is highly comfortable to use.
[0005] To achieve the above objectives, the present invention provides the following technical solution:
[0006] A handheld oral irrigator with multi-level water pressure adjustment includes a housing. A rotating connecting base is fixedly installed at the upper end of the housing. A rotating end is rotatably connected to the rotating port of the rotating connecting base. A rinsing end is inserted into the port of the rotating end. A gear ring is sleeved and fixedly fixed to the outside of the rotating end. A micro motor is fixedly installed inside the housing. A gear is fixedly installed at one end of the rotating shaft of the micro motor. The gear meshes with the gear ring.
[0007] By adopting the above technical solution, the rotation of the rinsing head can be controlled without rotating the wrist, resulting in high user comfort.
[0008] Furthermore, a control circuit board is fixedly installed inside the housing, and multiple mounting holes are provided on the side surface of the housing. A turn signal switch, a gear switch, and a power switch are movably installed inside the multiple mounting holes, respectively. The turn signal switch, gear switch, and power switch correspond to the corresponding function buttons on the control circuit board, and the control circuit board is electrically connected to the micro motor.
[0009] By adopting the above technical solution, various functions on the water flosser can be triggered flexibly and conveniently.
[0010] Furthermore, a telescopic rod is fixedly installed on the inner wall of the upper part of the housing. A locking frame is fixedly connected to the telescopic end of the telescopic rod. A through hole is provided in the middle of the locking frame, and an annular protrusion with a semi-circular cross-section is integrally connected to the inner wall of the through hole. An arc-shaped groove is provided on the side surface of the rinsing end, and the annular protrusion is engaged inside the arc-shaped groove. A spring is provided on one side of the telescopic rod. The two ends of the spring abut against the side surface of the locking frame and the inner wall of the housing, respectively. An installation hole is provided on the side surface of the housing, and an unlocking button is movably installed inside the installation hole. One end of the unlocking button abuts against one end of the locking frame.
[0011] By adopting the above technical solution, the flushing end can be effectively locked.
[0012] Furthermore, a delivery pump is fixedly installed inside the housing, and water guide pipes are fixedly installed at both the inlet and outlet ends of the delivery pump. The delivery pump is electrically connected to the control circuit board.
[0013] By adopting the above technical solution, the rinsing operation can be carried out stably.
[0014] Furthermore, a water storage box is snapped into one end of the housing, and the water guide pipe installed at the water inlet of the delivery pump is placed inside the water storage box.
[0015] By adopting the above technical solution, sufficient rinsing water can be provided for the use of the oral irrigator.
[0016] Furthermore, a storage battery is installed inside the housing, the storage battery is electrically connected to the control circuit board, and a charging port is provided on the side surface of the housing, with a charging connector provided at the charging port.
[0017] By adopting the above technical solution, the water flosser can be charged conveniently.
[0018] In summary, the beneficial technical effects of this utility model are as follows:
[0019] 1. This utility model can control the forward and reverse rotation of the micro motor using a turn switch during use. The forward and reverse rotation of the micro motor can drive the gear to rotate, and then, under the linkage of the gear ring, drive the rotating end head to rotate. At this time, the rinsing end head inserted inside the rotating end head rotates. The rotation angle and position of the rinsing end head can be actively controlled according to the user's needs. In the process of achieving thorough rinsing, it avoids the frequent rotation of the user's wrist, avoids wrist pain, and effectively improves the user's comfort.
[0020] 2. During use, this utility model can use a gear switch to trigger different power supply modes inside the control circuit board, thereby changing different power supply currents to adjust the speed of the delivery pump and realize different gear rinsing operations, thus effectively improving its practicality. Attached Figure Description
[0021] Figure 1 This is a first-view perspective view of the three-dimensional structure of this utility model;
[0022] Figure 2 This is a second perspective view of the three-dimensional structure of this utility model;
[0023] Figure 3 This is a diagram of the internal structure of the present invention;
[0024] Figure 4 This utility model Figure 3 Enlarged view of point A.
[0025] In the diagram: 1. Housing; 2. Water storage box; 3. Directional switch; 4. Gear switch; 5. Power switch; 6. Unlock button; 7. Flushing end; 8. Charging port; 9. Control circuit board; 10. Battery; 11. Delivery pump; 12. Water guide pipe; 13. Locking bracket; 14. Telescopic rod; 15. Spring; 16. Rotating connecting base; 17. Rotating end; 18. Gear ring; 19. Gear; 20. Miniature motor. Detailed Implementation
[0026] The method of this utility model will be further described in detail below with reference to the accompanying drawings.
[0027] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4A handheld oral irrigator with multi-level water pressure adjustment includes a housing 1. A rotating connecting base 16 is fixedly installed at the upper part of the housing 1. A rotating end 17 is rotatably connected to the rotating port of the rotating connecting base 16. A rinsing end 7 is inserted into the port of the rotating end 17. A gear ring 18 is sleeved and fixedly fixed to the outside of the rotating end 17. A micro motor 20 is fixedly installed inside the housing 1. A gear 19 is fixedly installed at one end of the rotating shaft of the micro motor 20, and the gear 19 meshes with the gear ring 18. A control circuit board 9 is fixedly installed inside the housing 1. Multiple mounting holes are provided on the side surface of the housing 1, and a directional switch 3, a gear position switch 4, and a power switch 5 are movably installed inside the mounting holes, respectively. The directional switch 3, gear position switch 4, and power switch 5 correspond to the control circuit board 9. The corresponding function buttons are connected to the control circuit board 9 and the micro motor 20. The battery 10 is installed inside the housing 1 and is electrically connected to the control circuit board 9. A charging port 8 is provided on the side surface of the housing 1, and a charging connector is provided at the charging port 8. During use, the micro motor 20 can be controlled to rotate forward and backward using the directional switch 3. The forward and reverse rotation of the micro motor 20 can drive the gear 19 to rotate, and then, under the linkage of the gear ring 18, drive the rotating end head 17 to rotate. At this time, the rinsing end head 7 inserted inside the rotating end head 17 rotates. The rotation angle and position of the rinsing end head 7 can be actively controlled according to the user's needs. During the process of achieving thorough rinsing, frequent wrist rotation of the user is avoided, preventing wrist pain and effectively improving user comfort.
[0028] Reference Figure 1 , Figure 3 A delivery pump 11 is fixedly installed inside the housing 1. Water guide pipes 12 are fixedly installed at both the inlet and outlet ends of the delivery pump 11. The delivery pump 11 is electrically connected to the control circuit board 9. A water storage box 2 is snapped onto one end of the housing 1. The water guide pipe 12 installed at the inlet end of the delivery pump 11 is placed inside the water storage box 2. During use, the gear switch 4 can be used to trigger different power supply modes inside the control circuit board 9, thereby changing different power supply currents to adjust the speed of the delivery pump 11 and realize different levels of rinsing operation, which effectively improves the practicality.
[0029] Reference Figure 3 , Figure 4A telescopic rod 14 is fixedly installed on the inner wall of the upper part of the housing 1. A locking bracket 13 is fixedly connected to the telescopic end of the telescopic rod 14. A through hole is provided in the middle of the locking bracket 13, and an annular protrusion with a semi-circular cross-section is integrally connected to the inner wall of the through hole. An arc-shaped groove is provided on the side surface of the rinsing end 7, and the annular protrusion is engaged inside the arc-shaped groove. A spring 15 is provided on one side of the telescopic rod 14. The two ends of the spring 15 abut against the side surface of the locking bracket 13 and the inner wall of the housing 1, respectively. An installation hole is provided on the side surface of the housing 1, and an unlocking button 6 is movably installed inside the installation hole. One end of the unlocking button 6 abuts against the locking bracket. At one end of the frame 13, when installing the flushing head 7, pressing the unlock button 6 will move the locking frame 13, causing the telescopic rod 14 to retract and the spring 15 to be compressed. Then, the flushing head 7 can be inserted, and then the unlock button 6 can be released. At this time, the spring 15 will drive the locking frame 13 to reset, and the locking frame 13 will re-engage in the arc-shaped groove on the side surface of the flushing head 7. This can effectively limit and lock the flushing head 7, preventing it from falling off and ensuring stable rotation of the flushing head 7. When the flushing head 7 needs to be replaced, the above operation can be repeated and the flushing head 7 can be pulled out. It is convenient to use and highly practical.
[0030] Working principle: During use, the rinsing water is stored inside the water storage box 2, which is then snapped into place at the end of the housing 1. Normal operation is then possible. The power supply circuit is turned on via the power switch 5, and the gear switch 4 triggers different power supply modes within the control circuit board 9, thereby changing the power supply current and adjusting the speed of the delivery pump 11 to achieve different rinsing levels. During rinsing, the direction switch 3 controls the forward and reverse rotation of the micro motor 20. The forward and reverse rotation of the micro motor 20 drives the gear 19 to rotate, which, in conjunction with the gear ring 18, drives the rotating end head 17 to rotate. The rinsing end head 7, inserted inside the rotating end head 17, rotates. The rotation angle and position of the rinsing end head 7 can be adjusted according to the user's needs. The system allows for active control, preventing frequent wrist rotation and wrist pain during thorough rinsing. The rinsing head 7 can be easily disassembled and reassembled throughout use. To install the rinsing head 7, press the unlock button 6. The unlock button 6 moves the locking bracket 13, causing the telescopic rod 14 to retract and the spring 15 to compress. Then, insert the rinsing head 7 and release the unlock button 6. The spring 15 then resets the locking bracket 13, which re-engages in the arc-shaped groove on the side surface of the rinsing head 7. This effectively limits and locks the rinsing head 7, preventing it from falling off and ensuring stable rotation. To replace the rinsing head 7, repeat the above steps and remove it.
[0031] The specific real-time examples described herein are preferred real-time examples of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.
Claims
1. A handheld oral irrigator with multi-stage water pressure adjustment function, comprising a shell (1), characterized in that: A rotating connecting base (16) is fixedly installed inside the upper part of the housing (1). A rotating end (17) is rotatably connected to the rotating port of the rotating connecting base (16). A flushing end (7) is inserted into the port of the rotating end (17). A gear ring (18) is fixedly sleeved on the outside of the rotating end (17). A micro motor (20) is fixedly installed inside the housing (1). A gear (19) is fixedly installed at one end of the rotating shaft of the micro motor (20). The gear (19) meshes with the gear ring (18).
2. The handheld oral irrigator with multiple water pressure adjustment functions according to claim 1, characterized in that: The control circuit board (9) is fixedly installed inside the housing (1). Multiple mounting holes are provided on the side surface of the housing (1), and a turn switch (3), a gear switch (4), and a power switch (5) are movably installed inside the multiple mounting holes respectively. The turn switch (3), gear switch (4), and power switch (5) correspond to the corresponding function buttons on the control circuit board (9). The control circuit board (9) is electrically connected to the micro motor (20).
3. The handheld oral irrigator with multiple water pressure adjustment function according to claim 1, characterized in that: A telescopic rod (14) is fixedly installed on the inner wall of the upper part of the housing (1). A locking frame (13) is fixedly connected to the telescopic end of the telescopic rod (14). A through hole is provided in the middle of the locking frame (13), and an annular protrusion with a semi-circular cross-section is integrally connected to the inner wall of the through hole. An arc-shaped groove is provided on the side surface of the flushing end (7), and the annular protrusion is engaged in the inside of the arc-shaped groove. A spring (15) is provided on one side of the telescopic rod (14). The two ends of the spring (15) abut against the side surface of the locking frame (13) and the inner wall of the housing (1), respectively. An installation hole is provided on the side surface of the housing (1), and an unlocking button (6) is movably installed inside the installation hole. One end of the unlocking button (6) abuts against one end of the locking frame (13).
4. The handheld oral irrigator with multiple water pressure adjustment function according to claim 2, characterized in that: A delivery pump (11) is fixedly installed inside the housing (1). Both the inlet and outlet ends of the delivery pump (11) are fixedly installed with water guide pipes (12). The delivery pump (11) is electrically connected to the control circuit board (9).
5. The handheld oral irrigator with multiple water pressure adjustment function according to claim 4, characterized in that: A water storage box (2) is fitted onto one end of the housing (1), and a water guide pipe (12) installed at the water inlet of the delivery pump (11) is placed inside the water storage box (2).
6. The handheld oral irrigator with multiple water pressure adjustment function according to claim 2, characterized in that: A storage battery (10) is installed inside the housing (1). The storage battery (10) is electrically connected to the control circuit board (9). A charging port (8) is provided on the side surface of the housing (1). A charging connector is provided at the charging port (8).