Detachable water tank for tooth washing device

By designing a detachable water tank and adopting a multi-level sealing structure and locking components, the problems of poor sealing performance and water leakage of the toothbrush water tank are solved, and stable sealing and convenient use are achieved.

CN223464134UActive Publication Date: 2025-10-24SHENZHEN BAOFENGTONG ELECTRICAL APPLIANCES MFG CO LTD
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Patent Information

Application Number
CN202422249903.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-12
Publication Date
2025-10-24
Estimated Expiration
2034-09-12

AI Technical Summary

Technical Problem

Most existing water tanks for dental irrigators are of an integrated structure, which makes the bottom of the water tank difficult to clean and prone to poor sealing performance. Some water tanks with split structures are prone to water leakage.

Method used

A detachable water tank is designed, comprising a tank body and a detachably connected bottom cover. The bottom cover is sleeved with a first sealing ring with multiple sealing protrusions. The side wall of the tank body is provided with a card hole and a locking assembly. The locking assembly is used to achieve a stable connection between the tank body and the bottom cover, and an O-ring is provided at the water tank door to improve the sealing performance.

Benefits of technology

It improves the sealing performance of the water tank, prevents liquid leakage, ensures a stable sealing effect during vibration, temperature changes or pressure changes, simplifies the installation and disassembly process, and improves ease of use.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The detachable water tank comprises a tank body and a bottom cover, the bottom cover is sleeved with a first sealing ring, the first sealing ring is used for sealing a gap between the inner wall of the tank body and the outer wall of the bottom cover, and the first sealing ring comprises a sealing main body and a plurality of sealing convex rings formed by outwards extending and protruding the outer wall of the sealing main body; the multiple sealing convex rings are sequentially arranged in the axis direction of the sealing body to form a multi-layer sealing system. Each sealing convex ring has certain elasticity and compressibility and can deform under external force so as to adapt to and fill a tiny gap between the inner wall of the box body and the outer wall of the bottom cover; when the bottom cover and the tank body are installed in a matched mode to form an integral piece, the multiple sealing convex rings are compressed one by one to form multiple independent sealing areas, each sealing area can independently play a sealing role, and therefore the sealing performance of the water tank is greatly improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to tooth washer technical field more specifically, is related to a detachable water tank for tooth washer. BACKGROUND

[0002] There is a about 2mm deep ditch around teeth but not attached to teeth called gum ditch at the junction of teeth and gum, it is the most important junction to tooth root, but it is the most dirty place and is the most likely to cause teeth and gum disease.

[0003] Gum ditch and tooth gap are two most difficult to clean places, research shows that "up to 40% of tooth surface cannot be cleaned by toothbrush", although food residues can be removed by floss (or toothpick), but microscopically, the uneven tooth surface is still not clean; bacteria grow only need a thin layer of nutrient film, the harmful effect of residual dirt film still exists. Food residues inserted in tooth gap, in addition to being uncomfortable and having bacteria, the greater harm is that it provides nutrients for dental plaque, if not removed in time, dental plaque is easy to calcify and become "tartar" accumulated in the tooth root, which can press and stimulate the periodontal environment and cause periodontal atrophy.

[0004] In view of gum ditch and tooth gap as difficult areas of oral cleaning, food residues and bacteria are easy to accumulate, thus causing a series of oral health problems such as gingivitis, periodontitis, etc. Tooth washer is widely welcomed due to its high efficiency and convenience. Tooth washer uses high pressure water flow technology to flush the difficult-to-reach areas such as gum ditch and tooth gap through small nozzles, effectively removing food residues, soft dirt and part of dental plaque in these areas. The high pressure water flow can reach the bottom of gum ditch and flush away the hidden corners that are difficult to reach by toothbrush and floss, greatly improving the thoroughness of oral cleaning. In addition to the function of cleaning teeth and oral cavity, the water flow also has the effect of massaging gum, promoting blood circulation of gum and enhancing the resistance of local tissue; at the same time, it can also eliminate bad breath caused by poor oral hygiene.

[0005] However, the existing tooth washer water tank is mostly of one-piece structure, or the water tank is composed of a first water tank shell and a second water tank shell fixedly connected. However, after long-term use of the water tank, water scale is easy to accumulate at the bottom of the water tank. The one-piece structure water tank is not convenient for cleaning the bottom of the water tank. Although some tooth washer water tanks are of split structure, water leakage is easy to occur. UTILITY MODEL CONTENTS

[0006] In order to overcome the shortcomings of the prior art, the utility model provides a detachable water tank for tooth washer to solve the problem of poor sealing performance of the existing tooth washer water tank.

[0007] The utility model discloses a detachable water tank for a tooth washer, which comprises a box body and a bottom cover detachably connected with the box body, the box body is hollow inside to form a containing cavity for containing liquid, a first sealing ring is sleeved on the bottom cover, the first sealing ring is used for sealing the gap between the inner wall of the box body and the outer wall of the bottom cover, the first sealing ring comprises a sealing main body and a plurality of sealing convex rings formed by the outer wall of the sealing main body extending outward, and the plurality of sealing convex rings are arranged along the axial direction of the sealing main body in sequence.

[0008] Preferably, the sealing convex ring and the sealing main body are an integral structure, the sealing convex ring is provided with three, and the three sealing convex rings are arranged at equal intervals along the axial direction of the sealing main body.

[0009] Preferably, the upper end of the bottom cover extends outward along the central axis of the bottom cover to form a protruding part, the outer wall of the protruding part is provided with a flange, the flange, the protruding part and the bottom cover surround to form an annular clamping groove, and at least a part of the first sealing ring is embedded in the annular clamping groove.

[0010] Preferably, the side wall of the box body is provided with a clamping hole penetrating through the wall thickness of the box body, the bottom cover is provided with a locking assembly correspondingly, the locking assembly can be horizontally moved to switch between the locked state and the detached state, the bottom cover is provided with a first clamping groove and a second clamping groove arranged in sequence along the moving track of the locking assembly, the distance between the first clamping groove and the clamping hole is smaller than the distance between the second clamping groove and the clamping hole, when the locking assembly is in the locked state, at least a part of the locking assembly is inserted into the clamping hole, and a part of the locking assembly is embedded in the second clamping groove; when the locking assembly is in the detached state, the locking assembly is separated from the clamping hole, and a part of the locking assembly is embedded in the first clamping groove.

[0011] Preferably, the locking assembly comprises a locking piece and a buckle, the buckle is detachably installed on the locking piece, the locking piece comprises a main body and an elastic sheet which is an integral structure with the main body, the lower end of the elastic sheet is provided with a first clamping convex, and the first clamping convex is used for clamping cooperation with the first clamping groove or the second clamping groove.

[0012] Preferably, the bottom cover is provided with a containing groove, the locking assembly is installed in the containing groove, the side wall of the containing groove is provided with a guide strip, the locking piece and the buckle are matched to define a limiting space used for clamping cooperation with the guide strip, and at least a part of the guide strip is located in the limiting space.

[0013] Preferably, the box side wall is provided with a water inlet, the water inlet is provided with a water tank door for covering the water inlet, one end of the water tank door is rotationally connected with the box side wall, the other end of the water tank door is provided with a second clamping convex, and the box is correspondingly provided with two oppositely arranged clamping blocks, when the water tank door covers the water inlet, the second clamping convex is embedded in the gap between the two clamping blocks.

[0014] Preferably, a second sealing ring is sleeved on the water tank door, and the second sealing ring is used for sealing the gap between the water tank door and the inner wall of the water inlet.

[0015] Preferably, the second sealing ring is an O-shaped sealing ring.

[0016] Preferably, the outer wall of the box is provided with anti-skid lines.

[0017] The utility model provides a kind of detachable water tank for tooth washer according to the above scheme, its beneficial effect is that: the utility model provides a kind of detachable water tank for tooth washer, including box and the bottom cover of detachable connection with box, box is hollow in inside to form the containing cavity for containing liquid, first sealing ring is sleeved on bottom cover, first sealing ring is used for sealing the gap between the inner wall of box and the outer wall of bottom cover, first sealing ring includes sealing main body and the multiple sealing convex rings formed by the outer wall of sealing main body and outwardly extending protruding, multiple sealing convex rings are sequentially arranged along the axis direction of sealing main body, and constitute a multi-level sealing system;Every sealing convex ring has certain elasticity and compressibility, can be deformed when being subjected to external force, to adapt and fill the small gap between the inner wall of box and the outer wall of bottom cover;When bottom cover and box are cooperatively installed into an integral piece, multiple sealing convex rings are compressed one by one, form multiple independent sealing areas, and every sealing area can independently play the sealing effect, even if the sealing effect of certain sealing area is slightly insufficient, other sealing areas can also provide effective supplement, so that the sealing performance of water tank is greatly improved, to ensure that water tank can maintain stable sealing effect whether in the vibration, temperature change or pressure change in normal use process, so that the liquid in containing cavity can be prevented from leaking out. ACCURATE DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the following will briefly introduce the drawings needed to be used in embodiment or prior art description, obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating labor.

[0019] Figure 1 It is the whole structure schematic view of detachable water tank in the embodiment of the utility model;

[0020] Figure 2The structure disassembly schematic view of the detachable water tank in the embodiment of the utility model;

[0021] Figure 3 The structure schematic view of the first sealing ring in the embodiment of the utility model;

[0022] Figure 4 The partial sectional view of the detachable water tank in the embodiment of the utility model;

[0023] Figure 5 The structure schematic view of the bottom cover in the embodiment of the utility model;

[0024] Figure 6 The half sectional view of the detachable water tank in the embodiment of the utility model;

[0025] Figure 7 The A partial enlarged schematic view of Figure 6

[0026] Figure 8 The sectional view of the locking assembly in the embodiment of the utility model;

[0027] Figure 9 The structure schematic view of the locking assembly in the embodiment of the utility model.

[0028] In the drawing, 1, tank body;11, containing cavity;12, clamping hole;13, water inlet;14, clamping block;2, bottom cover;21, protruding part;22, flange;23, annular clamping groove;24, first clamping groove;25, second clamping groove;26, accommodating groove;27, guide bar;3, first sealing ring;31, sealing main body;32, sealing convex ring;4, locking assembly;41, locking piece;411, main body;412, elastic sheet;4121, first clamping convex;42, fastener;43, limiting space;5, water tank door;51, second clamping convex;6, second sealing ring;7, anti-skid pattern. Specific implementation

[0029] The embodiment of the utility model is further described in detail below in combination with the drawings and the embodiment. The detailed description of the following embodiment and the drawings are used to exemplarily illustrate the principle of the utility model, but cannot be used to limit the scope of the utility model, namely the utility model is not limited to the described embodiment.

[0030] In order to better understand the utility model, the utility model is further described below in combination with the drawings and the embodiment:

[0031] Referring to Figure 1 ​As shown in the utility model embodiment provides a kind of detachable water tank for tooth washer, including box 1 and the bottom cover 2 detachably connected with box 1, box 1 is hollow to form the containing cavity 11 for containing liquid. Among them, liquid can be clean water, mouthwash or oral cleaning liquid etc., not too much example here.

[0032] Referring to Figures 2-3 As shown, the first sealing ring 3 is sleeved on the bottom cover 2, and the first sealing ring 3 is used to seal the gap between the inner wall of the box 1 and the outer wall of the bottom cover 2. Specifically, the first sealing ring 3 includes a sealing body 31 and a plurality of sealing protruding rings 32 formed by the outer wall of the sealing body 31 extending outward. The plurality of sealing protruding rings 32 are arranged along the axis direction of the sealing body 31 in sequence, forming a multi-level sealing system. Each sealing protruding ring 32 has a certain elasticity and compressibility, and can deform when subjected to external force to adapt to and fill the small gap between the inner wall of the box 1 and the outer wall of the bottom cover 2. When the bottom cover 2 and the box 1 are installed together as a whole, the plurality of sealing protruding rings 32 are compressed one by one, forming a plurality of independent sealing areas. Each sealing area can independently play a sealing role. Even if the sealing effect of a certain sealing area is slightly insufficient, other sealing areas can provide effective compensation, thereby greatly improving the sealing performance of the water tank and ensuring that the water tank can maintain stable sealing effect regardless of vibration, temperature change or pressure change during normal use, thereby preventing the liquid in the containing cavity 11 from leaking out.

[0033] In this embodiment, the sealing protruding ring 32 and the sealing body 31 are of an integral structure. Specifically, the sealing protruding ring 32 and the sealing body 31 are made into an integral piece by an integral molding process.

[0034] In another embodiment, three sealing protruding rings 32 are provided, and the three sealing protruding rings 32 are arranged at equal intervals along the axis direction of the sealing body 31. With this design, the three sealing protruding rings 32 arranged at equal intervals can adapt to the change of the gap. In actual application, due to reasons such as thermal expansion and contraction of materials, differences in machining precision, etc., the size of the gap between the inner wall of the box 1 and the outer wall of the bottom cover 2 changes accordingly. The three sealing protruding rings 32 arranged at equal intervals enable the first sealing ring 3 to automatically adjust to some extent to adapt to these changes, thereby enhancing the sealing effect of the first sealing ring 3 on the gap.

[0035] Of course, the number of sealing protruding rings 32 in the present application is not limited to the above-mentioned 3. It can also be 4, 5, 6 or even more. Those skilled in the art can select the number of additional sealing protruding rings 32 according to actual needs.

[0036] When the water tank vibrates, the sealing ring of the traditional water tank is easy to be displaced due to the vibration, so that a leakage channel is formed between the inner wall of the tank body 1 and the outer wall of the bottom cover 2, and then the water tank leaks. Based on this, the detachable water tank for the tooth washer provided by the utility model has the following structure:

[0037] As shown in Figure 4 and Figure 5 , the upper end of the bottom cover 2 extends upward along the central axis of the bottom cover 2 to form a protruding part 21, the outer wall of the protruding part 21 is provided with a flange 22, the flange 22, the protruding part 21 and the bottom cover 2 form an annular clamping groove 23, and at least a part of the first sealing ring 3 is embedded in the annular clamping groove 23. In this way, the position of the first sealing ring 3 after installation can be fixed, and it is not easy to be displaced due to external force.

[0038] As shown in Figure 6 and Figure 7 , the side wall of the tank body 1 is provided with a clamping hole 12 penetrating through the wall thickness of the tank body 1, and the bottom cover 2 is correspondingly provided with a locking assembly 4, the locking assembly 4 can be switched between the locked state and the detached state by horizontal movement. In this way, the installation and disassembly steps between the tank body 1 and the bottom cover 2 are simplified, and the connection and separation of the tank body 1 and the bottom cover 2 can be easily completed without complex tools or operation skills, thereby improving the convenience of use.

[0039] In this embodiment, the bottom cover 2 is provided with a first clamping groove 24 and a second clamping groove 25 arranged in sequence along the moving track of the locking assembly 4, the distance between the first clamping groove 24 and the clamping hole 12 is less than the distance between the second clamping groove 25 and the clamping hole 12, when the locking assembly 4 is in the locked state, at least a part of the locking assembly 4 is inserted into the clamping hole 12, and a part of the locking assembly 4 is embedded in the second clamping groove 25. In this way, the connection stability between the tank body 1 and the bottom cover 2 is enhanced, and loosening or falling off caused by vibration is prevented.

[0040] When the locking assembly 4 is in the detached state, the locking assembly 4 is separated from the clamping hole 12, and a part of the locking assembly 4 is embedded in the first clamping groove 24.

[0041] As shown in Figures 7-9 , the locking assembly 4 comprises a locking part 41 and a buckle 42, the buckle 42 is detachably installed on the locking part 41, the locking part 41 comprises a main body 411 and an elastic sheet 412 which is an integral structure with the main body 411, the lower end of the elastic sheet 412 is provided with a first clamping convex 4121, and the first clamping convex 4121 is used for clamping cooperation with the first clamping groove 24 or the second clamping groove 25.

[0042] Specifically, when the locking assembly 4 is in the locking state, the first clamping protrusion 4121 is clamped in the second clamping groove 25, so as to prevent the locking assembly 4 from being displaced due to vibration; when the locking assembly 4 is in the disengaging state, the first clamping protrusion 4121 is clamped in the first clamping groove 24, so as to prevent the locking assembly 4 from being displaced due to vibration.

[0043] More specifically, the bottom cover 2 is provided with a receiving groove 26, the locking assembly 4 is installed in the receiving groove 26, the sidewall of the receiving groove 26 is provided with a guide strip 27, the locking piece 41 and the buckle piece 42 cooperate to define a limiting space 43 for clamping cooperation with the guide strip 27, and at least a part of the guide strip 27 is located in the limiting space 43. In this way, the stability of the movement of the locking assembly 4 can be ensured, and it is ensured that the locking assembly 4 can move along a straight line so that the first clamping protrusion 4121 accurately clamps in cooperation with the first clamping groove 24 or the second clamping groove 25. At the same time, this design can also ensure that the locking piece 41 can be accurately inserted into the clamping hole 12 to achieve firm connection between the box body 1 and the bottom cover 2.

[0044] Referring to Figure 2 and Figure 4 As shown in the figures, the sidewall of the box body 1 is provided with a water inlet 13, the water inlet 13 is provided with a water tank door 5 for covering the water inlet 13, one end of the water tank door 5 is rotatably connected with the sidewall of the box body 1, and the other end of the water tank door 5 is provided with a second clamping protrusion 51. The box body 1 is correspondingly provided with two oppositely arranged clamping blocks 14, and when the water tank door 5 covers the water inlet 13, the second clamping protrusion 51 is embedded in the gap between the two clamping blocks 14.

[0045] In this embodiment, the water tank door 5 is sleeved with a second sealing ring 6, and the second sealing ring 6 is used to seal the gap between the water tank door 5 and the inner wall of the water inlet 13. Specifically, the second sealing ring 6 is an O-shaped sealing ring.

[0046] Preferably, the outer wall of the box body 1 is provided with anti-skid lines 7, and the design of the anti-skid lines 7 can significantly increase the friction coefficient of the outer wall of the box body 1, so that the box body 1 can be stably held when it is held by hand, and the risk of accidental falling of the water tank due to hand slipping can be reduced.

[0047] It should be noted that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product of the application is used, or the orientation or positional relationship commonly understood by those skilled in the art, or the orientation or positional relationship commonly used when the product of the application is used, which is only for the convenience of describing the application and simplifying the description, and is not intended to indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application.

[0048] It should be understood that, for those skilled in the art, improvements or changes can be made according to the above description, and all these improvements and changes shall belong to the protection scope of the appended claims of the utility model.

[0049] The utility model patent is exemplarily described above in combination with the drawings, and obviously the implementation of the utility model patent is not limited by the above-mentioned mode. As long as various improvements are made by adopting the method concept and technical scheme of the utility model patent, or the concept and technical scheme of the utility model patent is directly applied to other occasions without improvement, it is within the protection scope of the utility model.

Claims

1. A detachable water tank for a dental water jet, characterized in that, The box includes a box body and a bottom cover detachably connected with the box body, the box body is hollow inside to form a containing cavity for containing liquid, a first sealing ring is sleeved on the bottom cover, the first sealing ring is used for sealing the gap between the inner wall of the box body and the outer wall of the bottom cover, the first sealing ring includes a sealing main body and a plurality of sealing convex rings formed by the outer wall of the sealing main body extending outward, the plurality of sealing convex rings are arranged along the axis direction of the sealing main body in sequence. The side wall of the box body is provided with a clamping hole penetrating through the wall thickness of the box body, the bottom cover is correspondingly provided with a locking assembly, the locking assembly can be horizontally moved to switch between the locked state and the detached state, the bottom cover is provided with a first clamping groove and a second clamping groove arranged in sequence along the moving track of the locking assembly, the distance between the first clamping groove and the clamping hole is smaller than the distance between the second clamping groove and the clamping hole, when the locking assembly is in the locked state, at least a part of the locking assembly is inserted into the clamping hole, and a part of the locking assembly is embedded in the second clamping groove, when the locking assembly is in the detached state, the locking assembly is separated from the clamping hole, and a part of the locking assembly is embedded in the first clamping groove.

2. A detachable water tank for a dental water jet device as claimed in claim 1, characterized in that: The sealing convex ring and the sealing main body are an integral structure, the sealing convex ring is provided with three, and the three sealing convex rings are arranged at equal intervals along the axis direction of the sealing main body.

3. A detachable water tank for a dental water jet device as defined in claim 1, characterized in that: The upper end of the bottom cover extends upward along the central axis of the bottom cover to form a protruding portion, the outer wall of the protruding portion is provided with a flange, the flange, the protruding portion and the bottom cover surround to form an annular clamping groove, and at least a part of the first sealing ring is embedded in the annular clamping groove.

4. A detachable water tank for a dental water jet device as defined in claim 1, characterized in that: The locking assembly includes a locking piece and a buckle, the buckle is detachably mounted on the locking piece, the locking piece includes a main body and an elastic sheet which is an integral structure with the main body, the lower end of the elastic sheet is provided with a first clamping convex, and the first clamping convex is used for clamping cooperation with the first clamping groove or the second clamping groove.

5. A detachable water tank for a dental water jet device as defined in claim 4, characterized in that: The bottom cover is provided with a containing groove, the locking assembly is mounted in the containing groove, the side wall of the containing groove is provided with a guide strip, the locking piece and the buckle cooperate to define a limiting space for clamping cooperation with the guide strip, and at least a part of the guide strip is located in the limiting space.

6. A detachable water tank for a dental water jet device as defined in claim 4, characterized in that: The side wall of the box body is provided with a water inlet, the water inlet is provided with a water tank door for covering the water inlet, one end of the water tank door is rotatably connected with the side wall of the box body, the other end of the water tank door is provided with a second clamping convex, and the box body is correspondingly provided with two oppositely arranged clamping blocks, when the water tank door covers the water inlet, the second clamping convex is embedded in the gap between the two clamping blocks.

7. A detachable water tank for a dental water jet device as defined in claim 6, characterized in that: A second sealing ring is sleeved on the water tank door, and the second sealing ring is used for sealing the gap between the water tank door and the inner wall of the water inlet.

8. A detachable water tank for a dental water jet device as defined in claim 7, characterized in that: The second sealing ring is an O-shaped sealing ring.

9. A detachable water tank for a dental water jet device as defined in claim 7, characterized in that: The outer wall of the box body is provided with anti-skid lines.