Surface cover assembly of oral irrigator

The multi-layered structure and sealed design of the faceplate assembly solves the problems of cracking and leakage in the water flosser housing, achieving greater durability and sealing to ensure cleaning effectiveness.

CN224251537UActive Publication Date: 2026-05-19DONGGUAN XINXING PLASTIC PRODS
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN XINXING PLASTIC PRODS
Filing Date
2025-03-22
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing oral irrigators are prone to cracking of the housing and leakage due to aging of the sealant, resulting in insufficient structural durability and sealing.

Method used

The multi-layered cover assembly includes an inner layer, a reinforcing layer, and an outer layer. The inner and outer layers are made of rubber film material, while the middle reinforcing layer is made of aluminum alloy wire mesh material. Combined with a sealing ring and sealant, it improves sealing performance and structural strength.

Benefits of technology

With prolonged use, it effectively prevents the casing from cracking and leaking, enhances sealing and impact resistance, and maintains cleanliness.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224251537U_ABST
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Abstract

The utility model relates to the technical field of oral irrigators, in particular to a face cover assembly of an oral irrigator, which comprises a face shell, the face shell is of a cylindrical structure, a water storage box is arranged at the lower end of the face shell, a sealing plate is embedded in one end, close to the water storage box, of the face shell, and a water inlet pipe penetrates through the surface of the sealing plate. When the oral irrigator needs to be used, a power supply is switched on through the switch, the flow speed of water pumping and water feeding of the water pump is stable through control of the circuit board, clear water is fed into the water pump from the water storage box through the water inlet pipe, particle impurities can be filtered through the filter tip, the clear water is fed into the flow guide pipe through the water outlet pipe by the water pump, and finally the clear water is sprayed out through the nozzle. The connection position of the flow guide pipe and the face shell is bonded and fixed through the sealant, and the sealing ring made of the water swelling rubber material is additionally arranged, so that the sealing protection effect can be achieved after long-time use.
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Description

Technical Field

[0001] This utility model relates to the field of oral irrigator technology, and in particular to a faceplate assembly for an oral irrigator. Background Technology

[0002] A water flosser is an oral hygiene tool that uses high-pressure water to remove food debris, plaque, and bacteria between teeth, thus cleaning the mouth. It is especially suitable for areas that are difficult to clean with traditional toothbrushes and dental floss.

[0003] A search revealed that existing Chinese patent publication number "CN212522060U" provides a portable electric water flosser, including a body assembly and a water flossing assembly. The water flossing assembly is located on the body assembly, which includes a housing, a water tank, a water pump, a control panel, and a power supply. The water tank is located at the end of the housing and has a water inlet with a water cap. The control panel is located on the housing, while the water pump and power supply are located inside the housing. The water pump is connected to the power supply via the control panel. The water outlet of the housing is connected to the water flossing assembly, which includes a water guide tube, a water flossing tube, and a brushing component. One end of the water flossing tube is connected to the water outlet of the housing via the water guide tube, and the other end of the water flossing tube has a water inlet and a brushing component, which includes a brush handle and bristles. By configuring the water flossing tube and the water inlet, teeth can be thoroughly cleaned. This portable electric water flosser has a reasonable structural design, ensuring effective rinsing and cleaning of interdental spaces or tooth surfaces, thus improving cleaning efficiency and making it easy to use.

[0004] Currently, most water flossers, after prolonged use, are prone to cracking due to water damage and thermal expansion and contraction. The single plastic shell becomes brittle and prone to cracking. At the same time, the adhesive used to seal the connection between the guide tube and the cover shell ages, leading to leakage. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned shortcomings in the existing technology by providing a faceplate assembly for a water flosser.

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

[0007] Design a faceplate assembly for a water flosser, including a faceplate, the faceplate having a cylindrical structure, a water storage box at the lower end of the faceplate, a sealing plate embedded at the end of the faceplate near the water storage box, a water inlet pipe extending through the surface of the sealing plate, the water inlet pipe being bonded and fixed to the sealing plate by sealant, the lower end of the water inlet pipe extending into the interior of the water storage box, and a filter nozzle fixed at the end of the water inlet pipe located in the water storage box;

[0008] A water pump is installed on the inner wall of the face shell. The water inlet end of the water pump is connected to the flange at the end of the water inlet pipe away from the water storage box. A water outlet pipe is installed inside the face shell, and the water outlet pipe is connected to the water outlet end of the water pump through a flange.

[0009] A flow guide tube is installed through the upper end of the face shell. The connection between the flow guide tube and the face shell is fixed by resin adhesive. The upper end of the flow guide tube is provided with a right angle bend. The end of the flow guide tube away from the face shell is fixedly connected to a nozzle.

[0010] In detail, the lower inner side of the shell is provided with an internal thread, the water storage box is a circular structure, and its outer ring wall is provided with an external thread, and the external thread and the internal thread are threadedly connected to each other.

[0011] In detail, a sealing groove is provided at the connection position between the face shell and the guide tube. The sealing groove has an annular structure and is filled with a sealing ring. The inner side of the sealing ring is pressed tightly against the outer wall of the guide tube. The sealing ring is made of water-swellable rubber material.

[0012] In detail, a circuit board is embedded and fixed on the inner wall of the face shell, and a switch is installed on the circuit board. The switch is set through the face shell, and the connection between the switch and the face shell is fixed by adhesive.

[0013] In detail, a rechargeable battery is fixed on the inner wall of the faceplate, and a charging head is provided on the rechargeable battery. The charging head is inserted through the faceplate, and the connection between the charging head and the faceplate is fixed by sealant. The outward end of the charging head is wrapped with a silicone sleeve. The rechargeable battery is connected to the circuit board, switch and water pump through wires.

[0014] In detail, the shell comprises an inner layer, a reinforcing layer, a base layer, and an outer layer. The reinforcing layer is bonded and fixed to the inner wall of the base layer, the inner wall of the reinforcing layer is covered by the inner layer, and the outer wall of the base layer is covered by the outer layer.

[0015] In detail, both the inner and outer layers are made of rubber film material.

[0016] In detail, the reinforcing layer is made of aluminum alloy wire mesh material.

[0017] In detail, the base layer is made of high-strength plastic material.

[0018] The design scheme proposed in this utility model has the following beneficial effects in application:

[0019] 1. When the water flosser needs to be used, turn on the power by switching on the switch. The circuit board controls the water pump to maintain a stable water flow rate. Clean water is sent from the water tank through the inlet pipe into the water pump. The filter can filter out particulate impurities. The water pump sends clean water into the guide pipe through the outlet pipe. Finally, it is sprayed out through the nozzle to rinse the teeth. At the connection between the guide pipe and the face shell, it is not only fixed by adhesive, but also has a sealing ring made of water-swellable rubber material, which can play a sealing and protective role after long-term use.

[0020] 2. By using a multi-layer structure instead of a single-layer plastic material for the outer shell, it is not only resistant to water stains and various liquids during long-term use, but also increases the structural strength of the shell. The inner and outer layers made of rubber film material not only provide waterproofing but also have good insulation properties. The reinforcing layer made of aluminum alloy wire mesh material can improve the impact resistance of the shell from the inside, preventing cracking directly in the event of a collision due to excessively large hollow space. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall front structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the overall side structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the internal structure of the present invention;

[0024] Figure 4 This is an enlarged schematic diagram of point A in this utility model;

[0025] Figure 5 This is an enlarged schematic diagram of section B of this utility model;

[0026] Figure 6 This is a schematic diagram of the shell structure of this utility model.

[0027] In the diagram: 1. Front shell; 11. Water storage box; 12. Sealing plate; 13. Water pump; 14. Inlet pipe; 15. Filter nozzle; 16. Guide pipe; 17. Nozzle; 18. Outlet pipe; 2. Internal thread; 21. External thread; 3. Sealing groove; 31. Sealing ring; 4. Circuit board; 41. Switch; 5. Rechargeable battery; 51. Charging head; 52. Silicone sleeve; 1001. Inner layer; 1002. Reinforcing layer; 1003. Base layer; 1004. Outer layer. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0029] Reference Figures 1-6 A water flosser faceplate assembly includes a faceplate 1, which is cylindrical in shape. A water storage box 11 is provided at the lower end of the faceplate 1. A sealing plate 12 is embedded in the faceplate 1 near the water storage box 11. A water inlet pipe 14 is provided through the surface of the sealing plate 12. The connection between the water inlet pipe 14 and the sealing plate 12 is fixed by adhesive. The lower end of the water inlet pipe 14 extends into the interior of the water storage box 11. A filter nozzle 15 is fixed at the end of the water inlet pipe 14 located in the water storage box 11.

[0030] A water pump 13 is installed on the inner wall of the face shell 1. The water inlet end of the water pump 13 is connected to the flange at the end of the water inlet pipe 14 away from the water storage box 11. An outlet pipe 18 is installed inside the face shell 1. The outlet pipe 18 is connected to the outlet end of the water pump 13 through a flange.

[0031] A guide tube 16 is provided through the upper end of the face shell 1. The connection between the guide tube 16 and the face shell 1 is fixed by resin adhesive. The upper end of the guide tube 16 is provided with a right angle bend. The end of the guide tube 16 away from the face shell 1 is fixedly connected to a nozzle 17.

[0032] It should be further noted that the lower inner side of the faceplate 1 is provided with an internal thread 2, the water storage box 11 is a circular structure, and its outer ring wall is provided with an external thread 21. The external thread 21 and the internal thread 2 are threaded together, which can facilitate the quick assembly and disassembly of the water storage box 11 and the faceplate 1.

[0033] It should be further noted that a sealing groove 3 is provided at the connection position between the faceplate 1 and the guide tube 16. The sealing groove 3 is an annular structure, and the interior of the sealing groove 3 is filled with a sealing ring 31. The inner side of the sealing ring 31 is pressed tightly against the outer wall of the guide tube 16. The sealing ring 31 is made of water-swellable rubber material, which can further enhance the sealing effect at the connection position between the guide tube 16 and the faceplate 1.

[0034] It should be further explained that a circuit board 4 is embedded and fixed on the inner wall of the faceplate 1. A switch 41 is installed on the circuit board 4. The switch 41 is set through the faceplate 1. The connection between the switch 41 and the faceplate 1 is fixed by adhesive to control the opening and closing of the water pump 13.

[0035] It should be further explained that a rechargeable battery 5 is fixed on the inner wall of the faceplate 1, and a charging head 51 is provided on the rechargeable battery 5. The charging head 51 is inserted through the faceplate 1, and the connection between the charging head 51 and the faceplate 1 is fixed by adhesive. The outward end of the charging head 51 is wrapped with a silicone sleeve 52. The rechargeable battery 5 is electrically connected to the circuit board 4, the switch 41 and the water pump 13 through wires, and can be recharged and used repeatedly.

[0036] It should be further explained that the shell 1 includes an inner layer 1001, a reinforcing layer 1002, a base layer 1003, and an outer layer 1004. The reinforcing layer 1002 is bonded and fixed to the inner wall of the base layer 1003, and the inner layer 1001 is covered on the inner wall of the reinforcing layer 1002. The outer layer 1004 is covered on the outer wall of the base layer 1003. Through the multi-layer structure, the shell 1 can improve its ability to resist water and corrosion, and at the same time, increase its impact resistance from the inside.

[0037] It should be further noted that both the inner layer 1001 and the outer layer 1004 are made of rubber film material, which has good waterproof and erosion-resistant properties, as well as excellent insulation capabilities, and plays a buffering role when subjected to impact.

[0038] It should be further noted that the reinforcing layer 1002 is made of aluminum alloy wire mesh, which provides impact resistance and deformation prevention from the inside.

[0039] It should be further noted that the base layer 1003 is made of high-strength plastic material, which has good corrosion resistance and good waterproofing.

[0040] Working method: When the water flosser needs to be used, the power is turned on by the switch 41. The water pump 13 is controlled by the circuit board 4 to make the water pump 13 pump water at a stable flow rate. Clean water is sent from the water storage box 11 through the water inlet pipe 14 into the water pump 13. The filter 15 can filter particulate impurities. The water pump 13 sends clean water into the guide pipe 16 through the water outlet pipe 18. Finally, it is sprayed out through the nozzle 17 to rinse the teeth. At the connection between the guide pipe 16 and the face shell 1, it is not only fixed by the sealant, but also a sealing ring 31 made of water-swellable rubber material is added, which can play a sealing and protective role after long-term use.

[0041] By using a multi-layer structure instead of a single layer of plastic material for the face shell 1, it can not only resist water stains and corrosion from various liquids during long-term use, but also increase the structural strength of the face shell 1. The inner layer 1001 and outer layer 1004, made of rubber film material, not only provide waterproofing but also have good insulation. The reinforcing layer 1002, made of aluminum alloy wire mesh material, can improve the impact resistance of the face shell 1 from the inside, preventing the hollow structure from cracking directly in the event of a collision due to excessive space.

[0042] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A face cap assembly of an oral irrigator comprising a face shell (1), characterized in that: The face shell (1) is a cylindrical structure. A water storage box (11) is provided at the lower end of the face shell (1). A sealing plate (12) is embedded in the face shell (1) near the water storage box (11). A water inlet pipe (14) is provided through the surface of the sealing plate (12). The connection between the water inlet pipe (14) and the sealing plate (12) is fixed by adhesive. The lower end of the water inlet pipe (14) extends into the interior of the water storage box (11). A filter nozzle (15) is fixed at the end of the water inlet pipe (14) located in the water storage box (11). A water pump (13) is provided on the inner wall of the shell (1). The water inlet end of the water pump (13) is connected to the flange at the end of the water inlet pipe (14) away from the water storage box (11). An outlet pipe (18) is provided inside the shell (1). The outlet pipe (18) is connected to the outlet end of the water pump (13) through a flange. A guide tube (16) is provided through the upper end of the face shell (1). The connection between the guide tube (16) and the face shell (1) is fixed by resin glue. The upper end of the guide tube (16) is provided with a right angle bend. The end of the guide tube (16) away from the face shell (1) is fixedly connected to a nozzle (17).

2. A face cover assembly for an oral irrigator according to claim 1, wherein: The inner side of the lower end of the face shell (1) is provided with an internal thread (2), the water storage box (11) is a circular structure, and an external thread (21) is provided on its outer ring wall. The external thread (21) and the internal thread (2) are threaded together.

3. The face cover assembly of a waterpik of claim 1, wherein: A sealing groove (3) is also provided at the connection position between the face shell (1) and the guide pipe (16). The sealing groove (3) is an annular structure. The interior of the sealing groove (3) is filled with a sealing ring (31). The inner side of the sealing ring (31) is pressed tightly against the outer wall of the guide pipe (16). The sealing ring (31) is made of water-swellable rubber material.

4. The face cover assembly of a waterpik of claim 1, wherein: A circuit board (4) is embedded in the inner wall of the face shell (1). A switch (41) is installed on the circuit board (4). The switch (41) passes through the face shell (1). The connection between the switch (41) and the face shell (1) is fixed by adhesive.

5. A face cover assembly for an oral irrigator according to claim 4, wherein: A rechargeable battery (5) is fixed on the inner wall of the face shell (1). A charging head (51) is provided on the rechargeable battery (5). The charging head (51) is connected to the face shell (1) through the charging head (51). The connection between the charging head (51) and the face shell (1) is fixed by adhesive. The outer end of the charging head (51) is wrapped with a silicone sleeve (52). The rechargeable battery (5) is connected to the circuit board (4), the switch (41) and the water pump (13) by wires.

6. The face cover assembly of a waterpik of claim 1, wherein: The shell (1) includes an inner layer (1001), a reinforcing layer (1002), a base layer (1003), and an outer layer (1004). The reinforcing layer (1002) is bonded and fixed to the inner wall of the base layer (1003). The inner layer (1001) is covered on the inner wall of the reinforcing layer (1002), and the outer layer (1004) is covered on the outer wall of the base layer (1003).

7. A face cap assembly for an oral irrigator according to claim 6, wherein: Both the inner layer (1001) and the outer layer (1004) are made of rubber film material.

8. The face cover assembly of a waterpik of claim 6, wherein: The reinforcing layer (1002) is made of aluminum alloy wire mesh material.

9. The face cover assembly of a waterpik of claim 6, wherein: The base layer (1003) is made of high-strength plastic material.